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164,300
nats-io/gnatsd
server/sublist.go
All
func (s *Sublist) All(subs *[]*subscription) { s.RLock() s.collectAllSubs(s.root, subs) s.RUnlock() }
go
func (s *Sublist) All(subs *[]*subscription) { s.RLock() s.collectAllSubs(s.root, subs) s.RUnlock() }
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// Used to collect all subscriptions.
[ "Used", "to", "collect", "all", "subscriptions", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/sublist.go#L1005-L1009
164,301
nats-io/gnatsd
server/jwt.go
validateTrustedOperators
func validateTrustedOperators(o *Options) error { if len(o.TrustedOperators) == 0 { return nil } if o.AllowNewAccounts { return fmt.Errorf("operators do not allow dynamic creation of new accounts") } if o.AccountResolver == nil { return fmt.Errorf("operators require an account resolver to be configured") } if len(o.Accounts) > 0 { return fmt.Errorf("operators do not allow Accounts to be configured directly") } if len(o.Users) > 0 || len(o.Nkeys) > 0 { return fmt.Errorf("operators do not allow users to be configured directly") } if len(o.TrustedOperators) > 0 && len(o.TrustedKeys) > 0 { return fmt.Errorf("conflicting options for 'TrustedKeys' and 'TrustedOperators'") } // If we have operators, fill in the trusted keys. // FIXME(dlc) - We had TrustedKeys before TrustedOperators. The jwt.OperatorClaims // has a DidSign(). Use that longer term. For now we can expand in place. for _, opc := range o.TrustedOperators { if o.TrustedKeys == nil { o.TrustedKeys = make([]string, 0, 4) } o.TrustedKeys = append(o.TrustedKeys, opc.Issuer) o.TrustedKeys = append(o.TrustedKeys, opc.SigningKeys...) } for _, key := range o.TrustedKeys { if !nkeys.IsValidPublicOperatorKey(key) { return fmt.Errorf("trusted Keys %q are required to be a valid public operator nkey", key) } } return nil }
go
func validateTrustedOperators(o *Options) error { if len(o.TrustedOperators) == 0 { return nil } if o.AllowNewAccounts { return fmt.Errorf("operators do not allow dynamic creation of new accounts") } if o.AccountResolver == nil { return fmt.Errorf("operators require an account resolver to be configured") } if len(o.Accounts) > 0 { return fmt.Errorf("operators do not allow Accounts to be configured directly") } if len(o.Users) > 0 || len(o.Nkeys) > 0 { return fmt.Errorf("operators do not allow users to be configured directly") } if len(o.TrustedOperators) > 0 && len(o.TrustedKeys) > 0 { return fmt.Errorf("conflicting options for 'TrustedKeys' and 'TrustedOperators'") } // If we have operators, fill in the trusted keys. // FIXME(dlc) - We had TrustedKeys before TrustedOperators. The jwt.OperatorClaims // has a DidSign(). Use that longer term. For now we can expand in place. for _, opc := range o.TrustedOperators { if o.TrustedKeys == nil { o.TrustedKeys = make([]string, 0, 4) } o.TrustedKeys = append(o.TrustedKeys, opc.Issuer) o.TrustedKeys = append(o.TrustedKeys, opc.SigningKeys...) } for _, key := range o.TrustedKeys { if !nkeys.IsValidPublicOperatorKey(key) { return fmt.Errorf("trusted Keys %q are required to be a valid public operator nkey", key) } } return nil }
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// validateTrustedOperators will check that we do not have conflicts with // assigned trusted keys and trusted operators. If operators are defined we // will expand the trusted keys in options.
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7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/jwt.go#L64-L99
164,302
nats-io/gnatsd
server/errors.go
Source
func (e *configErr) Source() string { return fmt.Sprintf("%s:%d:%d", e.token.SourceFile(), e.token.Line(), e.token.Position()) }
go
func (e *configErr) Source() string { return fmt.Sprintf("%s:%d:%d", e.token.SourceFile(), e.token.Line(), e.token.Position()) }
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// Source reports the location of a configuration error.
[ "Source", "reports", "the", "location", "of", "a", "configuration", "error", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/errors.go#L121-L123
164,303
nats-io/gnatsd
server/errors.go
Error
func (e *configErr) Error() string { if e.token != nil { return fmt.Sprintf("%s: %s", e.Source(), e.reason) } return e.reason }
go
func (e *configErr) Error() string { if e.token != nil { return fmt.Sprintf("%s: %s", e.Source(), e.reason) } return e.reason }
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// Error reports the location and reason from a configuration error.
[ "Error", "reports", "the", "location", "and", "reason", "from", "a", "configuration", "error", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/errors.go#L126-L131
164,304
nats-io/gnatsd
server/errors.go
Error
func (e *unknownConfigFieldErr) Error() string { return fmt.Sprintf("%s: unknown field %q", e.Source(), e.field) }
go
func (e *unknownConfigFieldErr) Error() string { return fmt.Sprintf("%s: unknown field %q", e.Source(), e.field) }
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// Error reports that an unknown field was in the configuration.
[ "Error", "reports", "that", "an", "unknown", "field", "was", "in", "the", "configuration", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/errors.go#L140-L142
164,305
nats-io/gnatsd
server/errors.go
Error
func (e *configWarningErr) Error() string { return fmt.Sprintf("%s: invalid use of field %q: %s", e.Source(), e.field, e.reason) }
go
func (e *configWarningErr) Error() string { return fmt.Sprintf("%s: invalid use of field %q: %s", e.Source(), e.field, e.reason) }
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// Error reports a configuration warning.
[ "Error", "reports", "a", "configuration", "warning", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/errors.go#L151-L153
164,306
nats-io/gnatsd
server/errors.go
Error
func (e *processConfigErr) Error() string { var msg string for _, err := range e.Warnings() { msg += err.Error() + "\n" } for _, err := range e.Errors() { msg += err.Error() + "\n" } return msg }
go
func (e *processConfigErr) Error() string { var msg string for _, err := range e.Warnings() { msg += err.Error() + "\n" } for _, err := range e.Errors() { msg += err.Error() + "\n" } return msg }
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// Error returns the collection of errors separated by new lines, // warnings appear first then hard errors.
[ "Error", "returns", "the", "collection", "of", "errors", "separated", "by", "new", "lines", "warnings", "appear", "first", "then", "hard", "errors", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/errors.go#L163-L172
164,307
nats-io/gnatsd
server/pse/pse_linux.go
periodic
func periodic() { contents, err := ioutil.ReadFile(procStatFile) if err != nil { return } fields := bytes.Fields(contents) // PCPU pstart := parseInt64(fields[startPos]) utime := parseInt64(fields[utimePos]) stime := parseInt64(fields[stimePos]) total := utime + stime var sysinfo syscall.Sysinfo_t if err := syscall.Sysinfo(&sysinfo); err != nil { return } seconds := int64(sysinfo.Uptime) - (pstart / ticks) // Save off temps lt := lastTotal ls := lastSeconds // Update last sample lastTotal = total lastSeconds = seconds // Adjust to current time window total -= lt seconds -= ls if seconds > 0 { atomic.StoreInt64(&ipcpu, (total*1000/ticks)/seconds) } time.AfterFunc(1*time.Second, periodic) }
go
func periodic() { contents, err := ioutil.ReadFile(procStatFile) if err != nil { return } fields := bytes.Fields(contents) // PCPU pstart := parseInt64(fields[startPos]) utime := parseInt64(fields[utimePos]) stime := parseInt64(fields[stimePos]) total := utime + stime var sysinfo syscall.Sysinfo_t if err := syscall.Sysinfo(&sysinfo); err != nil { return } seconds := int64(sysinfo.Uptime) - (pstart / ticks) // Save off temps lt := lastTotal ls := lastSeconds // Update last sample lastTotal = total lastSeconds = seconds // Adjust to current time window total -= lt seconds -= ls if seconds > 0 { atomic.StoreInt64(&ipcpu, (total*1000/ticks)/seconds) } time.AfterFunc(1*time.Second, periodic) }
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// Sampling function to keep pcpu relevant.
[ "Sampling", "function", "to", "keep", "pcpu", "relevant", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/pse/pse_linux.go#L50-L87
164,308
nats-io/gnatsd
server/events.go
internalSendLoop
func (s *Server) internalSendLoop(wg *sync.WaitGroup) { defer wg.Done() s.mu.Lock() if s.sys == nil || s.sys.sendq == nil { s.mu.Unlock() return } c := s.sys.client sendq := s.sys.sendq id := s.info.ID host := s.info.Host seqp := &s.sys.seq var cluster string if s.gateway.enabled { cluster = s.getGatewayName() } s.mu.Unlock() for s.eventsRunning() { // Setup information for next message seq := atomic.AddUint64(seqp, 1) select { case pm := <-sendq: if pm.si != nil { pm.si.Host = host pm.si.Cluster = cluster pm.si.ID = id pm.si.Seq = seq pm.si.Version = VERSION pm.si.Time = time.Now() } var b []byte if pm.msg != nil { b, _ = json.MarshalIndent(pm.msg, _EMPTY_, " ") } // Prep internal structures needed to send message. c.pa.subject = []byte(pm.sub) c.pa.size = len(b) c.pa.szb = []byte(strconv.FormatInt(int64(len(b)), 10)) c.pa.reply = []byte(pm.rply) // Add in NL b = append(b, _CRLF_...) c.processInboundClientMsg(b) c.flushClients(0) // Never spend time in place. // See if we are doing graceful shutdown. if pm.last { return } case <-s.quitCh: return } } }
go
func (s *Server) internalSendLoop(wg *sync.WaitGroup) { defer wg.Done() s.mu.Lock() if s.sys == nil || s.sys.sendq == nil { s.mu.Unlock() return } c := s.sys.client sendq := s.sys.sendq id := s.info.ID host := s.info.Host seqp := &s.sys.seq var cluster string if s.gateway.enabled { cluster = s.getGatewayName() } s.mu.Unlock() for s.eventsRunning() { // Setup information for next message seq := atomic.AddUint64(seqp, 1) select { case pm := <-sendq: if pm.si != nil { pm.si.Host = host pm.si.Cluster = cluster pm.si.ID = id pm.si.Seq = seq pm.si.Version = VERSION pm.si.Time = time.Now() } var b []byte if pm.msg != nil { b, _ = json.MarshalIndent(pm.msg, _EMPTY_, " ") } // Prep internal structures needed to send message. c.pa.subject = []byte(pm.sub) c.pa.size = len(b) c.pa.szb = []byte(strconv.FormatInt(int64(len(b)), 10)) c.pa.reply = []byte(pm.rply) // Add in NL b = append(b, _CRLF_...) c.processInboundClientMsg(b) c.flushClients(0) // Never spend time in place. // See if we are doing graceful shutdown. if pm.last { return } case <-s.quitCh: return } } }
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// internalSendLoop will be responsible for serializing all messages that // a server wants to send.
[ "internalSendLoop", "will", "be", "responsible", "for", "serializing", "all", "messages", "that", "a", "server", "wants", "to", "send", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L184-L237
164,309
nats-io/gnatsd
server/events.go
sendShutdownEvent
func (s *Server) sendShutdownEvent() { s.mu.Lock() if s.sys == nil || s.sys.sendq == nil { s.mu.Unlock() return } subj := fmt.Sprintf(shutdownEventSubj, s.info.ID) sendq := s.sys.sendq // Stop any more messages from queueing up. s.sys.sendq = nil // Unhook all msgHandlers. Normal client cleanup will deal with subs, etc. s.sys.subs = nil s.mu.Unlock() // Send to the internal queue and mark as last. sendq <- &pubMsg{subj, _EMPTY_, nil, nil, true} }
go
func (s *Server) sendShutdownEvent() { s.mu.Lock() if s.sys == nil || s.sys.sendq == nil { s.mu.Unlock() return } subj := fmt.Sprintf(shutdownEventSubj, s.info.ID) sendq := s.sys.sendq // Stop any more messages from queueing up. s.sys.sendq = nil // Unhook all msgHandlers. Normal client cleanup will deal with subs, etc. s.sys.subs = nil s.mu.Unlock() // Send to the internal queue and mark as last. sendq <- &pubMsg{subj, _EMPTY_, nil, nil, true} }
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// Will send a shutdown message.
[ "Will", "send", "a", "shutdown", "message", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L240-L255
164,310
nats-io/gnatsd
server/events.go
sendInternalMsg
func (s *Server) sendInternalMsg(sub, rply string, si *ServerInfo, msg interface{}) { if s.sys == nil || s.sys.sendq == nil { return } sendq := s.sys.sendq // Don't hold lock while placing on the channel. s.mu.Unlock() sendq <- &pubMsg{sub, rply, si, msg, false} s.mu.Lock() }
go
func (s *Server) sendInternalMsg(sub, rply string, si *ServerInfo, msg interface{}) { if s.sys == nil || s.sys.sendq == nil { return } sendq := s.sys.sendq // Don't hold lock while placing on the channel. s.mu.Unlock() sendq <- &pubMsg{sub, rply, si, msg, false} s.mu.Lock() }
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// This will queue up a message to be sent. // Assumes lock is held on entry.
[ "This", "will", "queue", "up", "a", "message", "to", "be", "sent", ".", "Assumes", "lock", "is", "held", "on", "entry", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L259-L268
164,311
nats-io/gnatsd
server/events.go
eventsRunning
func (s *Server) eventsRunning() bool { s.mu.Lock() er := s.running && s.eventsEnabled() s.mu.Unlock() return er }
go
func (s *Server) eventsRunning() bool { s.mu.Lock() er := s.running && s.eventsEnabled() s.mu.Unlock() return er }
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// Locked version of checking if events system running. Also checks server.
[ "Locked", "version", "of", "checking", "if", "events", "system", "running", ".", "Also", "checks", "server", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L271-L276
164,312
nats-io/gnatsd
server/events.go
EventsEnabled
func (s *Server) EventsEnabled() bool { s.mu.Lock() defer s.mu.Unlock() return s.eventsEnabled() }
go
func (s *Server) EventsEnabled() bool { s.mu.Lock() defer s.mu.Unlock() return s.eventsEnabled() }
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// EventsEnabled will report if the server has internal events enabled via // a defined system account.
[ "EventsEnabled", "will", "report", "if", "the", "server", "has", "internal", "events", "enabled", "via", "a", "defined", "system", "account", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L280-L284
164,313
nats-io/gnatsd
server/events.go
eventsEnabled
func (s *Server) eventsEnabled() bool { return s.sys != nil && s.sys.client != nil && s.sys.account != nil }
go
func (s *Server) eventsEnabled() bool { return s.sys != nil && s.sys.client != nil && s.sys.account != nil }
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// eventsEnabled will report if events are enabled. // Lock should be held.
[ "eventsEnabled", "will", "report", "if", "events", "are", "enabled", ".", "Lock", "should", "be", "held", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L288-L290
164,314
nats-io/gnatsd
server/events.go
routeStat
func routeStat(r *client) *RouteStat { if r == nil { return nil } r.mu.Lock() rs := &RouteStat{ ID: r.cid, Sent: DataStats{ Msgs: atomic.LoadInt64(&r.outMsgs), Bytes: atomic.LoadInt64(&r.outBytes), }, Received: DataStats{ Msgs: atomic.LoadInt64(&r.inMsgs), Bytes: atomic.LoadInt64(&r.inBytes), }, Pending: int(r.out.pb), } r.mu.Unlock() return rs }
go
func routeStat(r *client) *RouteStat { if r == nil { return nil } r.mu.Lock() rs := &RouteStat{ ID: r.cid, Sent: DataStats{ Msgs: atomic.LoadInt64(&r.outMsgs), Bytes: atomic.LoadInt64(&r.outBytes), }, Received: DataStats{ Msgs: atomic.LoadInt64(&r.inMsgs), Bytes: atomic.LoadInt64(&r.inBytes), }, Pending: int(r.out.pb), } r.mu.Unlock() return rs }
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// Generate a route stat for our statz update.
[ "Generate", "a", "route", "stat", "for", "our", "statz", "update", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L320-L339
164,315
nats-io/gnatsd
server/events.go
sendStatsz
func (s *Server) sendStatsz(subj string) { m := ServerStatsMsg{} updateServerUsage(&m.Stats) m.Stats.Start = s.start m.Stats.Connections = len(s.clients) m.Stats.TotalConnections = s.totalClients m.Stats.ActiveAccounts = int(atomic.LoadInt32(&s.activeAccounts)) m.Stats.Received.Msgs = atomic.LoadInt64(&s.inMsgs) m.Stats.Received.Bytes = atomic.LoadInt64(&s.inBytes) m.Stats.Sent.Msgs = atomic.LoadInt64(&s.outMsgs) m.Stats.Sent.Bytes = atomic.LoadInt64(&s.outBytes) m.Stats.SlowConsumers = atomic.LoadInt64(&s.slowConsumers) m.Stats.NumSubs = s.numSubscriptions() for _, r := range s.routes { m.Stats.Routes = append(m.Stats.Routes, routeStat(r)) } if s.gateway.enabled { gw := s.gateway gw.RLock() for name, c := range gw.out { gs := &GatewayStat{Name: name} c.mu.Lock() gs.ID = c.cid gs.Sent = DataStats{ Msgs: atomic.LoadInt64(&c.outMsgs), Bytes: atomic.LoadInt64(&c.outBytes), } c.mu.Unlock() // Gather matching inbound connections gs.Received = DataStats{} for _, c := range gw.in { c.mu.Lock() if c.gw.name == name { gs.Received.Msgs += atomic.LoadInt64(&c.inMsgs) gs.Received.Bytes += atomic.LoadInt64(&c.inBytes) gs.NumInbound++ } c.mu.Unlock() } m.Stats.Gateways = append(m.Stats.Gateways, gs) } gw.RUnlock() } s.sendInternalMsg(subj, _EMPTY_, &m.Server, &m) }
go
func (s *Server) sendStatsz(subj string) { m := ServerStatsMsg{} updateServerUsage(&m.Stats) m.Stats.Start = s.start m.Stats.Connections = len(s.clients) m.Stats.TotalConnections = s.totalClients m.Stats.ActiveAccounts = int(atomic.LoadInt32(&s.activeAccounts)) m.Stats.Received.Msgs = atomic.LoadInt64(&s.inMsgs) m.Stats.Received.Bytes = atomic.LoadInt64(&s.inBytes) m.Stats.Sent.Msgs = atomic.LoadInt64(&s.outMsgs) m.Stats.Sent.Bytes = atomic.LoadInt64(&s.outBytes) m.Stats.SlowConsumers = atomic.LoadInt64(&s.slowConsumers) m.Stats.NumSubs = s.numSubscriptions() for _, r := range s.routes { m.Stats.Routes = append(m.Stats.Routes, routeStat(r)) } if s.gateway.enabled { gw := s.gateway gw.RLock() for name, c := range gw.out { gs := &GatewayStat{Name: name} c.mu.Lock() gs.ID = c.cid gs.Sent = DataStats{ Msgs: atomic.LoadInt64(&c.outMsgs), Bytes: atomic.LoadInt64(&c.outBytes), } c.mu.Unlock() // Gather matching inbound connections gs.Received = DataStats{} for _, c := range gw.in { c.mu.Lock() if c.gw.name == name { gs.Received.Msgs += atomic.LoadInt64(&c.inMsgs) gs.Received.Bytes += atomic.LoadInt64(&c.inBytes) gs.NumInbound++ } c.mu.Unlock() } m.Stats.Gateways = append(m.Stats.Gateways, gs) } gw.RUnlock() } s.sendInternalMsg(subj, _EMPTY_, &m.Server, &m) }
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// Actual send method for statz updates. // Lock should be held.
[ "Actual", "send", "method", "for", "statz", "updates", ".", "Lock", "should", "be", "held", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L343-L388
164,316
nats-io/gnatsd
server/events.go
initEventTracking
func (s *Server) initEventTracking() { if !s.eventsEnabled() { return } subject := fmt.Sprintf(accConnsEventSubj, "*") if _, err := s.sysSubscribe(subject, s.remoteConnsUpdate); err != nil { s.Errorf("Error setting up internal tracking: %v", err) } // This will be for responses for account info that we send out. subject = fmt.Sprintf(connsRespSubj, s.info.ID) if _, err := s.sysSubscribe(subject, s.remoteConnsUpdate); err != nil { s.Errorf("Error setting up internal tracking: %v", err) } // Listen for broad requests to respond with account info. subject = fmt.Sprintf(accConnsReqSubj, "*") if _, err := s.sysSubscribe(subject, s.connsRequest); err != nil { s.Errorf("Error setting up internal tracking: %v", err) } // Listen for all server shutdowns. subject = fmt.Sprintf(shutdownEventSubj, "*") if _, err := s.sysSubscribe(subject, s.remoteServerShutdown); err != nil { s.Errorf("Error setting up internal tracking: %v", err) } // Listen for account claims updates. subject = fmt.Sprintf(accUpdateEventSubj, "*") if _, err := s.sysSubscribe(subject, s.accountClaimUpdate); err != nil { s.Errorf("Error setting up internal tracking: %v", err) } // Listen for requests for our statsz. subject = fmt.Sprintf(serverStatsReqSubj, s.info.ID) if _, err := s.sysSubscribe(subject, s.statszReq); err != nil { s.Errorf("Error setting up internal tracking: %v", err) } // Listen for ping messages that will be sent to all servers for statsz. if _, err := s.sysSubscribe(serverStatsPingReqSubj, s.statszReq); err != nil { s.Errorf("Error setting up internal tracking: %v", err) } // Listen for updates when leaf nodes connect for a given account. This will // force any gateway connections to move to `modeInterestOnly` subject = fmt.Sprintf(leafNodeConnectEventSubj, "*") if _, err := s.sysSubscribe(subject, s.leafNodeConnected); err != nil { s.Errorf("Error setting up internal tracking: %v", err) } }
go
func (s *Server) initEventTracking() { if !s.eventsEnabled() { return } subject := fmt.Sprintf(accConnsEventSubj, "*") if _, err := s.sysSubscribe(subject, s.remoteConnsUpdate); err != nil { s.Errorf("Error setting up internal tracking: %v", err) } // This will be for responses for account info that we send out. subject = fmt.Sprintf(connsRespSubj, s.info.ID) if _, err := s.sysSubscribe(subject, s.remoteConnsUpdate); err != nil { s.Errorf("Error setting up internal tracking: %v", err) } // Listen for broad requests to respond with account info. subject = fmt.Sprintf(accConnsReqSubj, "*") if _, err := s.sysSubscribe(subject, s.connsRequest); err != nil { s.Errorf("Error setting up internal tracking: %v", err) } // Listen for all server shutdowns. subject = fmt.Sprintf(shutdownEventSubj, "*") if _, err := s.sysSubscribe(subject, s.remoteServerShutdown); err != nil { s.Errorf("Error setting up internal tracking: %v", err) } // Listen for account claims updates. subject = fmt.Sprintf(accUpdateEventSubj, "*") if _, err := s.sysSubscribe(subject, s.accountClaimUpdate); err != nil { s.Errorf("Error setting up internal tracking: %v", err) } // Listen for requests for our statsz. subject = fmt.Sprintf(serverStatsReqSubj, s.info.ID) if _, err := s.sysSubscribe(subject, s.statszReq); err != nil { s.Errorf("Error setting up internal tracking: %v", err) } // Listen for ping messages that will be sent to all servers for statsz. if _, err := s.sysSubscribe(serverStatsPingReqSubj, s.statszReq); err != nil { s.Errorf("Error setting up internal tracking: %v", err) } // Listen for updates when leaf nodes connect for a given account. This will // force any gateway connections to move to `modeInterestOnly` subject = fmt.Sprintf(leafNodeConnectEventSubj, "*") if _, err := s.sysSubscribe(subject, s.leafNodeConnected); err != nil { s.Errorf("Error setting up internal tracking: %v", err) } }
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// This will setup our system wide tracking subs. // For now we will setup one wildcard subscription to // monitor all accounts for changes in number of connections. // We can make this on a per account tracking basis if needed. // Tradeoff is subscription and interest graph events vs connect and // disconnect events, etc.
[ "This", "will", "setup", "our", "system", "wide", "tracking", "subs", ".", "For", "now", "we", "will", "setup", "one", "wildcard", "subscription", "to", "monitor", "all", "accounts", "for", "changes", "in", "number", "of", "connections", ".", "We", "can", "make", "this", "on", "a", "per", "account", "tracking", "basis", "if", "needed", ".", "Tradeoff", "is", "subscription", "and", "interest", "graph", "events", "vs", "connect", "and", "disconnect", "events", "etc", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L416-L459
164,317
nats-io/gnatsd
server/events.go
accountClaimUpdate
func (s *Server) accountClaimUpdate(sub *subscription, subject, reply string, msg []byte) { s.mu.Lock() defer s.mu.Unlock() if !s.eventsEnabled() { return } toks := strings.Split(subject, tsep) if len(toks) < accUpdateTokens { s.Debugf("Received account claims update on bad subject %q", subject) return } if v, ok := s.accounts.Load(toks[accUpdateAccIndex]); ok { s.updateAccountWithClaimJWT(v.(*Account), string(msg)) } }
go
func (s *Server) accountClaimUpdate(sub *subscription, subject, reply string, msg []byte) { s.mu.Lock() defer s.mu.Unlock() if !s.eventsEnabled() { return } toks := strings.Split(subject, tsep) if len(toks) < accUpdateTokens { s.Debugf("Received account claims update on bad subject %q", subject) return } if v, ok := s.accounts.Load(toks[accUpdateAccIndex]); ok { s.updateAccountWithClaimJWT(v.(*Account), string(msg)) } }
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// accountClaimUpdate will receive claim updates for accounts.
[ "accountClaimUpdate", "will", "receive", "claim", "updates", "for", "accounts", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L462-L476
164,318
nats-io/gnatsd
server/events.go
processRemoteServerShutdown
func (s *Server) processRemoteServerShutdown(sid string) { s.accounts.Range(func(k, v interface{}) bool { a := v.(*Account) a.mu.Lock() prev := a.strack[sid] delete(a.strack, sid) a.nrclients -= prev.conns a.nrleafs -= prev.leafs a.mu.Unlock() return true }) }
go
func (s *Server) processRemoteServerShutdown(sid string) { s.accounts.Range(func(k, v interface{}) bool { a := v.(*Account) a.mu.Lock() prev := a.strack[sid] delete(a.strack, sid) a.nrclients -= prev.conns a.nrleafs -= prev.leafs a.mu.Unlock() return true }) }
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// processRemoteServerShutdown will update any affected accounts. // Will update the remote count for clients. // Lock assume held.
[ "processRemoteServerShutdown", "will", "update", "any", "affected", "accounts", ".", "Will", "update", "the", "remote", "count", "for", "clients", ".", "Lock", "assume", "held", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L481-L492
164,319
nats-io/gnatsd
server/events.go
remoteServerShutdown
func (s *Server) remoteServerShutdown(sub *subscription, subject, reply string, msg []byte) { s.mu.Lock() defer s.mu.Unlock() if !s.eventsEnabled() { return } toks := strings.Split(subject, tsep) if len(toks) < shutdownEventTokens { s.Debugf("Received remote server shutdown on bad subject %q", subject) return } sid := toks[serverSubjectIndex] su := s.sys.servers[sid] if su != nil { s.processRemoteServerShutdown(sid) } }
go
func (s *Server) remoteServerShutdown(sub *subscription, subject, reply string, msg []byte) { s.mu.Lock() defer s.mu.Unlock() if !s.eventsEnabled() { return } toks := strings.Split(subject, tsep) if len(toks) < shutdownEventTokens { s.Debugf("Received remote server shutdown on bad subject %q", subject) return } sid := toks[serverSubjectIndex] su := s.sys.servers[sid] if su != nil { s.processRemoteServerShutdown(sid) } }
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// remoteServerShutdownEvent is called when we get an event from another server shutting down.
[ "remoteServerShutdownEvent", "is", "called", "when", "we", "get", "an", "event", "from", "another", "server", "shutting", "down", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L495-L511
164,320
nats-io/gnatsd
server/events.go
updateRemoteServer
func (s *Server) updateRemoteServer(ms *ServerInfo) { su := s.sys.servers[ms.ID] if su == nil { s.sys.servers[ms.ID] = &serverUpdate{ms.Seq, time.Now()} } else { // Should alwqys be going up. if ms.Seq <= su.seq { s.Errorf("Received out of order remote server update from: %q", ms.ID) return } su.seq = ms.Seq su.ltime = time.Now() } }
go
func (s *Server) updateRemoteServer(ms *ServerInfo) { su := s.sys.servers[ms.ID] if su == nil { s.sys.servers[ms.ID] = &serverUpdate{ms.Seq, time.Now()} } else { // Should alwqys be going up. if ms.Seq <= su.seq { s.Errorf("Received out of order remote server update from: %q", ms.ID) return } su.seq = ms.Seq su.ltime = time.Now() } }
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// updateRemoteServer is called when we have an update from a remote server. // This allows us to track remote servers, respond to shutdown messages properly, // make sure that messages are ordered, and allow us to prune dead servers. // Lock should be held upon entry.
[ "updateRemoteServer", "is", "called", "when", "we", "have", "an", "update", "from", "a", "remote", "server", ".", "This", "allows", "us", "to", "track", "remote", "servers", "respond", "to", "shutdown", "messages", "properly", "make", "sure", "that", "messages", "are", "ordered", "and", "allow", "us", "to", "prune", "dead", "servers", ".", "Lock", "should", "be", "held", "upon", "entry", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L517-L530
164,321
nats-io/gnatsd
server/events.go
shutdownEventing
func (s *Server) shutdownEventing() { if !s.eventsRunning() { return } s.mu.Lock() clearTimer(&s.sys.sweeper) clearTimer(&s.sys.stmr) s.mu.Unlock() // We will queue up a shutdown event and wait for the // internal send loop to exit. s.sendShutdownEvent() s.sys.wg.Wait() s.mu.Lock() defer s.mu.Unlock() // Whip through all accounts. s.accounts.Range(func(k, v interface{}) bool { a := v.(*Account) a.mu.Lock() a.nrclients = 0 // Now clear state clearTimer(&a.etmr) clearTimer(&a.ctmr) a.clients = nil a.strack = nil a.mu.Unlock() return true }) // Turn everything off here. s.sys = nil }
go
func (s *Server) shutdownEventing() { if !s.eventsRunning() { return } s.mu.Lock() clearTimer(&s.sys.sweeper) clearTimer(&s.sys.stmr) s.mu.Unlock() // We will queue up a shutdown event and wait for the // internal send loop to exit. s.sendShutdownEvent() s.sys.wg.Wait() s.mu.Lock() defer s.mu.Unlock() // Whip through all accounts. s.accounts.Range(func(k, v interface{}) bool { a := v.(*Account) a.mu.Lock() a.nrclients = 0 // Now clear state clearTimer(&a.etmr) clearTimer(&a.ctmr) a.clients = nil a.strack = nil a.mu.Unlock() return true }) // Turn everything off here. s.sys = nil }
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// shutdownEventing will clean up all eventing state.
[ "shutdownEventing", "will", "clean", "up", "all", "eventing", "state", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L533-L566
164,322
nats-io/gnatsd
server/events.go
connsRequest
func (s *Server) connsRequest(sub *subscription, subject, reply string, msg []byte) { if !s.eventsRunning() { return } m := accNumConnsReq{} if err := json.Unmarshal(msg, &m); err != nil { s.sys.client.Errorf("Error unmarshalling account connections request message: %v", err) return } acc, _ := s.lookupAccount(m.Account) if acc == nil { return } if nlc := acc.NumLocalConnections(); nlc > 0 { s.mu.Lock() s.sendAccConnsUpdate(acc, reply) s.mu.Unlock() } }
go
func (s *Server) connsRequest(sub *subscription, subject, reply string, msg []byte) { if !s.eventsRunning() { return } m := accNumConnsReq{} if err := json.Unmarshal(msg, &m); err != nil { s.sys.client.Errorf("Error unmarshalling account connections request message: %v", err) return } acc, _ := s.lookupAccount(m.Account) if acc == nil { return } if nlc := acc.NumLocalConnections(); nlc > 0 { s.mu.Lock() s.sendAccConnsUpdate(acc, reply) s.mu.Unlock() } }
[ "func", "(", "s", "*", "Server", ")", "connsRequest", "(", "sub", "*", "subscription", ",", "subject", ",", "reply", "string", ",", "msg", "[", "]", "byte", ")", "{", "if", "!", "s", ".", "eventsRunning", "(", ")", "{", "return", "\n", "}", "\n", "m", ":=", "accNumConnsReq", "{", "}", "\n", "if", "err", ":=", "json", ".", "Unmarshal", "(", "msg", ",", "&", "m", ")", ";", "err", "!=", "nil", "{", "s", ".", "sys", ".", "client", ".", "Errorf", "(", "\"", "\"", ",", "err", ")", "\n", "return", "\n", "}", "\n", "acc", ",", "_", ":=", "s", ".", "lookupAccount", "(", "m", ".", "Account", ")", "\n", "if", "acc", "==", "nil", "{", "return", "\n", "}", "\n", "if", "nlc", ":=", "acc", ".", "NumLocalConnections", "(", ")", ";", "nlc", ">", "0", "{", "s", ".", "mu", ".", "Lock", "(", ")", "\n", "s", ".", "sendAccConnsUpdate", "(", "acc", ",", "reply", ")", "\n", "s", ".", "mu", ".", "Unlock", "(", ")", "\n", "}", "\n", "}" ]
// Request for our local connection count.
[ "Request", "for", "our", "local", "connection", "count", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L569-L587
164,323
nats-io/gnatsd
server/events.go
leafNodeConnected
func (s *Server) leafNodeConnected(sub *subscription, subject, reply string, msg []byte) { m := accNumConnsReq{} if err := json.Unmarshal(msg, &m); err != nil { s.sys.client.Errorf("Error unmarshalling account connections request message: %v", err) return } s.mu.Lock() na := m.Account == "" || !s.eventsEnabled() || !s.gateway.enabled s.mu.Unlock() if na { return } if acc, _ := s.lookupAccount(m.Account); acc != nil { s.switchAccountToInterestMode(acc.Name) } }
go
func (s *Server) leafNodeConnected(sub *subscription, subject, reply string, msg []byte) { m := accNumConnsReq{} if err := json.Unmarshal(msg, &m); err != nil { s.sys.client.Errorf("Error unmarshalling account connections request message: %v", err) return } s.mu.Lock() na := m.Account == "" || !s.eventsEnabled() || !s.gateway.enabled s.mu.Unlock() if na { return } if acc, _ := s.lookupAccount(m.Account); acc != nil { s.switchAccountToInterestMode(acc.Name) } }
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// leafNodeConnected is an event we will receive when a leaf node for a given account // connects.
[ "leafNodeConnected", "is", "an", "event", "we", "will", "receive", "when", "a", "leaf", "node", "for", "a", "given", "account", "connects", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L591-L609
164,324
nats-io/gnatsd
server/events.go
statszReq
func (s *Server) statszReq(sub *subscription, subject, reply string, msg []byte) { s.mu.Lock() defer s.mu.Unlock() if !s.eventsEnabled() || reply == _EMPTY_ { return } s.sendStatsz(reply) }
go
func (s *Server) statszReq(sub *subscription, subject, reply string, msg []byte) { s.mu.Lock() defer s.mu.Unlock() if !s.eventsEnabled() || reply == _EMPTY_ { return } s.sendStatsz(reply) }
[ "func", "(", "s", "*", "Server", ")", "statszReq", "(", "sub", "*", "subscription", ",", "subject", ",", "reply", "string", ",", "msg", "[", "]", "byte", ")", "{", "s", ".", "mu", ".", "Lock", "(", ")", "\n", "defer", "s", ".", "mu", ".", "Unlock", "(", ")", "\n", "if", "!", "s", ".", "eventsEnabled", "(", ")", "||", "reply", "==", "_EMPTY_", "{", "return", "\n", "}", "\n", "s", ".", "sendStatsz", "(", "reply", ")", "\n", "}" ]
// statszReq is a request for us to respond with current statz.
[ "statszReq", "is", "a", "request", "for", "us", "to", "respond", "with", "current", "statz", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L612-L619
164,325
nats-io/gnatsd
server/events.go
remoteConnsUpdate
func (s *Server) remoteConnsUpdate(sub *subscription, subject, reply string, msg []byte) { if !s.eventsRunning() { return } m := AccountNumConns{} if err := json.Unmarshal(msg, &m); err != nil { s.sys.client.Errorf("Error unmarshalling account connection event message: %v", err) return } // See if we have the account registered, if not drop it. acc, _ := s.lookupAccount(m.Account) s.mu.Lock() defer s.mu.Unlock() // check again here if we have been shutdown. if !s.running || !s.eventsEnabled() { return } // Double check that this is not us, should never happen, so error if it does. if m.Server.ID == s.info.ID { s.sys.client.Errorf("Processing our own account connection event message: ignored") return } if acc == nil { s.sys.client.Debugf("Received account connection event for unknown account: %s", m.Account) return } // If we are here we have interest in tracking this account. Update our accounting. acc.mu.Lock() if acc.strack == nil { acc.strack = make(map[string]sconns) } // This does not depend on receiving all updates since each one is idempotent. prev := acc.strack[m.Server.ID] acc.strack[m.Server.ID] = sconns{conns: int32(m.Conns), leafs: int32(m.LeafNodes)} acc.nrclients += int32(m.Conns) - prev.conns acc.nrleafs += int32(m.LeafNodes) - prev.leafs acc.mu.Unlock() s.updateRemoteServer(&m.Server) }
go
func (s *Server) remoteConnsUpdate(sub *subscription, subject, reply string, msg []byte) { if !s.eventsRunning() { return } m := AccountNumConns{} if err := json.Unmarshal(msg, &m); err != nil { s.sys.client.Errorf("Error unmarshalling account connection event message: %v", err) return } // See if we have the account registered, if not drop it. acc, _ := s.lookupAccount(m.Account) s.mu.Lock() defer s.mu.Unlock() // check again here if we have been shutdown. if !s.running || !s.eventsEnabled() { return } // Double check that this is not us, should never happen, so error if it does. if m.Server.ID == s.info.ID { s.sys.client.Errorf("Processing our own account connection event message: ignored") return } if acc == nil { s.sys.client.Debugf("Received account connection event for unknown account: %s", m.Account) return } // If we are here we have interest in tracking this account. Update our accounting. acc.mu.Lock() if acc.strack == nil { acc.strack = make(map[string]sconns) } // This does not depend on receiving all updates since each one is idempotent. prev := acc.strack[m.Server.ID] acc.strack[m.Server.ID] = sconns{conns: int32(m.Conns), leafs: int32(m.LeafNodes)} acc.nrclients += int32(m.Conns) - prev.conns acc.nrleafs += int32(m.LeafNodes) - prev.leafs acc.mu.Unlock() s.updateRemoteServer(&m.Server) }
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// remoteConnsUpdate gets called when we receive a remote update from another server.
[ "remoteConnsUpdate", "gets", "called", "when", "we", "receive", "a", "remote", "update", "from", "another", "server", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L622-L665
164,326
nats-io/gnatsd
server/events.go
enableAccountTracking
func (s *Server) enableAccountTracking(a *Account) { if a == nil || !s.eventsEnabled() { return } // TODO(ik): Generate payload although message may not be sent. // May need to ensure we do so only if there is a known interest. // This can get complicated with gateways. subj := fmt.Sprintf(accConnsReqSubj, a.Name) reply := fmt.Sprintf(connsRespSubj, s.info.ID) m := accNumConnsReq{Account: a.Name} s.sendInternalMsg(subj, reply, &m.Server, &m) }
go
func (s *Server) enableAccountTracking(a *Account) { if a == nil || !s.eventsEnabled() { return } // TODO(ik): Generate payload although message may not be sent. // May need to ensure we do so only if there is a known interest. // This can get complicated with gateways. subj := fmt.Sprintf(accConnsReqSubj, a.Name) reply := fmt.Sprintf(connsRespSubj, s.info.ID) m := accNumConnsReq{Account: a.Name} s.sendInternalMsg(subj, reply, &m.Server, &m) }
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// Setup tracking for this account. This allows us to track globally // account activity. // Lock should be held on entry.
[ "Setup", "tracking", "for", "this", "account", ".", "This", "allows", "us", "to", "track", "globally", "account", "activity", ".", "Lock", "should", "be", "held", "on", "entry", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L670-L683
164,327
nats-io/gnatsd
server/events.go
sendLeafNodeConnect
func (s *Server) sendLeafNodeConnect(a *Account) { s.mu.Lock() // If we are not in operator mode, or do not have any gateways defined, this should also be a no-op. if a == nil || !s.eventsEnabled() || !s.gateway.enabled { s.mu.Unlock() return } subj := fmt.Sprintf(leafNodeConnectEventSubj, a.Name) m := accNumConnsReq{Account: a.Name} s.sendInternalMsg(subj, "", &m.Server, &m) s.mu.Unlock() s.switchAccountToInterestMode(a.Name) }
go
func (s *Server) sendLeafNodeConnect(a *Account) { s.mu.Lock() // If we are not in operator mode, or do not have any gateways defined, this should also be a no-op. if a == nil || !s.eventsEnabled() || !s.gateway.enabled { s.mu.Unlock() return } subj := fmt.Sprintf(leafNodeConnectEventSubj, a.Name) m := accNumConnsReq{Account: a.Name} s.sendInternalMsg(subj, "", &m.Server, &m) s.mu.Unlock() s.switchAccountToInterestMode(a.Name) }
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// Event on leaf node connect. // Lock should NOT be held on entry.
[ "Event", "on", "leaf", "node", "connect", ".", "Lock", "should", "NOT", "be", "held", "on", "entry", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L687-L700
164,328
nats-io/gnatsd
server/events.go
sendAccConnsUpdate
func (s *Server) sendAccConnsUpdate(a *Account, subj string) { if !s.eventsEnabled() || a == nil || a == s.gacc { return } a.mu.RLock() // If no limits set, don't update, no need to. if a.mconns == jwt.NoLimit && a.mleafs == jwt.NoLimit { a.mu.RUnlock() return } // Build event with account name and number of local clients and leafnodes. m := AccountNumConns{ Account: a.Name, Conns: a.numLocalConnections(), LeafNodes: a.numLocalLeafNodes(), TotalConns: a.numLocalConnections() + a.numLocalLeafNodes(), } a.mu.RUnlock() s.sendInternalMsg(subj, _EMPTY_, &m.Server, &m) // Set timer to fire again unless we are at zero. a.mu.Lock() if a.numLocalConnections() == 0 { clearTimer(&a.etmr) } else { // Check to see if we have an HB running and update. if a.ctmr == nil { a.etmr = time.AfterFunc(eventsHBInterval, func() { s.accConnsUpdate(a) }) } else { a.etmr.Reset(eventsHBInterval) } } a.mu.Unlock() }
go
func (s *Server) sendAccConnsUpdate(a *Account, subj string) { if !s.eventsEnabled() || a == nil || a == s.gacc { return } a.mu.RLock() // If no limits set, don't update, no need to. if a.mconns == jwt.NoLimit && a.mleafs == jwt.NoLimit { a.mu.RUnlock() return } // Build event with account name and number of local clients and leafnodes. m := AccountNumConns{ Account: a.Name, Conns: a.numLocalConnections(), LeafNodes: a.numLocalLeafNodes(), TotalConns: a.numLocalConnections() + a.numLocalLeafNodes(), } a.mu.RUnlock() s.sendInternalMsg(subj, _EMPTY_, &m.Server, &m) // Set timer to fire again unless we are at zero. a.mu.Lock() if a.numLocalConnections() == 0 { clearTimer(&a.etmr) } else { // Check to see if we have an HB running and update. if a.ctmr == nil { a.etmr = time.AfterFunc(eventsHBInterval, func() { s.accConnsUpdate(a) }) } else { a.etmr.Reset(eventsHBInterval) } } a.mu.Unlock() }
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// sendAccConnsUpdate is called to send out our information on the // account's local connections. // Lock should be held on entry.
[ "sendAccConnsUpdate", "is", "called", "to", "send", "out", "our", "information", "on", "the", "account", "s", "local", "connections", ".", "Lock", "should", "be", "held", "on", "entry", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L708-L744
164,329
nats-io/gnatsd
server/events.go
accConnsUpdate
func (s *Server) accConnsUpdate(a *Account) { s.mu.Lock() defer s.mu.Unlock() if !s.eventsEnabled() || a == nil { return } subj := fmt.Sprintf(accConnsEventSubj, a.Name) s.sendAccConnsUpdate(a, subj) }
go
func (s *Server) accConnsUpdate(a *Account) { s.mu.Lock() defer s.mu.Unlock() if !s.eventsEnabled() || a == nil { return } subj := fmt.Sprintf(accConnsEventSubj, a.Name) s.sendAccConnsUpdate(a, subj) }
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// accConnsUpdate is called whenever there is a change to the account's // number of active connections, or during a heartbeat.
[ "accConnsUpdate", "is", "called", "whenever", "there", "is", "a", "change", "to", "the", "account", "s", "number", "of", "active", "connections", "or", "during", "a", "heartbeat", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L748-L756
164,330
nats-io/gnatsd
server/events.go
accountConnectEvent
func (s *Server) accountConnectEvent(c *client) { s.mu.Lock() if !s.eventsEnabled() { s.mu.Unlock() return } s.mu.Unlock() subj := fmt.Sprintf(connectEventSubj, c.acc.Name) c.mu.Lock() m := ConnectEventMsg{ Client: ClientInfo{ Start: c.start, Host: c.host, ID: c.cid, Account: accForClient(c), User: nameForClient(c), Name: c.opts.Name, Lang: c.opts.Lang, Version: c.opts.Version, }, } c.mu.Unlock() s.mu.Lock() s.sendInternalMsg(subj, _EMPTY_, &m.Server, &m) s.mu.Unlock() }
go
func (s *Server) accountConnectEvent(c *client) { s.mu.Lock() if !s.eventsEnabled() { s.mu.Unlock() return } s.mu.Unlock() subj := fmt.Sprintf(connectEventSubj, c.acc.Name) c.mu.Lock() m := ConnectEventMsg{ Client: ClientInfo{ Start: c.start, Host: c.host, ID: c.cid, Account: accForClient(c), User: nameForClient(c), Name: c.opts.Name, Lang: c.opts.Lang, Version: c.opts.Version, }, } c.mu.Unlock() s.mu.Lock() s.sendInternalMsg(subj, _EMPTY_, &m.Server, &m) s.mu.Unlock() }
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// accountConnectEvent will send an account client connect event if there is interest. // This is a billing event.
[ "accountConnectEvent", "will", "send", "an", "account", "client", "connect", "event", "if", "there", "is", "interest", ".", "This", "is", "a", "billing", "event", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L760-L788
164,331
nats-io/gnatsd
server/events.go
accountDisconnectEvent
func (s *Server) accountDisconnectEvent(c *client, now time.Time, reason string) { s.mu.Lock() gacc := s.gacc if !s.eventsEnabled() { s.mu.Unlock() return } s.mu.Unlock() c.mu.Lock() // Ignore global account activity if c.acc == nil || c.acc == gacc { c.mu.Unlock() return } m := DisconnectEventMsg{ Client: ClientInfo{ Start: c.start, Stop: &now, Host: c.host, ID: c.cid, Account: accForClient(c), User: nameForClient(c), Name: c.opts.Name, Lang: c.opts.Lang, Version: c.opts.Version, RTT: c.getRTT(), }, Sent: DataStats{ Msgs: c.inMsgs, Bytes: c.inBytes, }, Received: DataStats{ Msgs: c.outMsgs, Bytes: c.outBytes, }, Reason: reason, } c.mu.Unlock() subj := fmt.Sprintf(disconnectEventSubj, c.acc.Name) s.mu.Lock() s.sendInternalMsg(subj, _EMPTY_, &m.Server, &m) s.mu.Unlock() }
go
func (s *Server) accountDisconnectEvent(c *client, now time.Time, reason string) { s.mu.Lock() gacc := s.gacc if !s.eventsEnabled() { s.mu.Unlock() return } s.mu.Unlock() c.mu.Lock() // Ignore global account activity if c.acc == nil || c.acc == gacc { c.mu.Unlock() return } m := DisconnectEventMsg{ Client: ClientInfo{ Start: c.start, Stop: &now, Host: c.host, ID: c.cid, Account: accForClient(c), User: nameForClient(c), Name: c.opts.Name, Lang: c.opts.Lang, Version: c.opts.Version, RTT: c.getRTT(), }, Sent: DataStats{ Msgs: c.inMsgs, Bytes: c.inBytes, }, Received: DataStats{ Msgs: c.outMsgs, Bytes: c.outBytes, }, Reason: reason, } c.mu.Unlock() subj := fmt.Sprintf(disconnectEventSubj, c.acc.Name) s.mu.Lock() s.sendInternalMsg(subj, _EMPTY_, &m.Server, &m) s.mu.Unlock() }
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// accountDisconnectEvent will send an account client disconnect event if there is interest. // This is a billing event.
[ "accountDisconnectEvent", "will", "send", "an", "account", "client", "disconnect", "event", "if", "there", "is", "interest", ".", "This", "is", "a", "billing", "event", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L792-L839
164,332
nats-io/gnatsd
server/events.go
sysSubscribe
func (s *Server) sysSubscribe(subject string, cb msgHandler) (*subscription, error) { if !s.eventsEnabled() { return nil, ErrNoSysAccount } if cb == nil { return nil, fmt.Errorf("undefined message handler") } s.mu.Lock() sid := strconv.FormatInt(int64(s.sys.sid), 10) s.sys.subs[sid] = cb s.sys.sid++ c := s.sys.client s.mu.Unlock() // Now create the subscription if err := c.processSub([]byte(subject + " " + sid)); err != nil { return nil, err } c.mu.Lock() sub := c.subs[sid] c.mu.Unlock() return sub, nil }
go
func (s *Server) sysSubscribe(subject string, cb msgHandler) (*subscription, error) { if !s.eventsEnabled() { return nil, ErrNoSysAccount } if cb == nil { return nil, fmt.Errorf("undefined message handler") } s.mu.Lock() sid := strconv.FormatInt(int64(s.sys.sid), 10) s.sys.subs[sid] = cb s.sys.sid++ c := s.sys.client s.mu.Unlock() // Now create the subscription if err := c.processSub([]byte(subject + " " + sid)); err != nil { return nil, err } c.mu.Lock() sub := c.subs[sid] c.mu.Unlock() return sub, nil }
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// Create an internal subscription. No support for queue groups atm.
[ "Create", "an", "internal", "subscription", ".", "No", "support", "for", "queue", "groups", "atm", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L900-L922
164,333
nats-io/gnatsd
server/events.go
nameForClient
func nameForClient(c *client) string { if c.user != nil { return c.user.Nkey } return "N/A" }
go
func nameForClient(c *client) string { if c.user != nil { return c.user.Nkey } return "N/A" }
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// Helper to grab name for a client.
[ "Helper", "to", "grab", "name", "for", "a", "client", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L937-L942
164,334
nats-io/gnatsd
server/events.go
accForClient
func accForClient(c *client) string { if c.acc != nil { return c.acc.Name } return "N/A" }
go
func accForClient(c *client) string { if c.acc != nil { return c.acc.Name } return "N/A" }
[ "func", "accForClient", "(", "c", "*", "client", ")", "string", "{", "if", "c", ".", "acc", "!=", "nil", "{", "return", "c", ".", "acc", ".", "Name", "\n", "}", "\n", "return", "\"", "\"", "\n", "}" ]
// Helper to grab account name for a client.
[ "Helper", "to", "grab", "account", "name", "for", "a", "client", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L945-L950
164,335
nats-io/gnatsd
server/events.go
clearTimer
func clearTimer(tp **time.Timer) { if t := *tp; t != nil { t.Stop() *tp = nil } }
go
func clearTimer(tp **time.Timer) { if t := *tp; t != nil { t.Stop() *tp = nil } }
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// Helper to clear timers.
[ "Helper", "to", "clear", "timers", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L953-L958
164,336
nats-io/gnatsd
server/events.go
wrapChk
func (s *Server) wrapChk(f func()) func() { return func() { s.mu.Lock() defer s.mu.Unlock() if !s.eventsEnabled() { return } f() } }
go
func (s *Server) wrapChk(f func()) func() { return func() { s.mu.Lock() defer s.mu.Unlock() if !s.eventsEnabled() { return } f() } }
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// Helper function to wrap functions with common test // to lock server and return if events not enabled.
[ "Helper", "function", "to", "wrap", "functions", "with", "common", "test", "to", "lock", "server", "and", "return", "if", "events", "not", "enabled", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/events.go#L962-L971
164,337
nats-io/gnatsd
logger/syslog.go
GetSysLoggerTag
func GetSysLoggerTag() string { procName := os.Args[0] if strings.ContainsRune(procName, os.PathSeparator) { parts := strings.FieldsFunc(procName, func(c rune) bool { return c == os.PathSeparator }) procName = parts[len(parts)-1] } return procName }
go
func GetSysLoggerTag() string { procName := os.Args[0] if strings.ContainsRune(procName, os.PathSeparator) { parts := strings.FieldsFunc(procName, func(c rune) bool { return c == os.PathSeparator }) procName = parts[len(parts)-1] } return procName }
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// GetSysLoggerTag generates the tag name for use in syslog statements. If // the executable is linked, the name of the link will be used as the tag, // otherwise, the name of the executable is used. "gnatsd" is the default // for the NATS server.
[ "GetSysLoggerTag", "generates", "the", "tag", "name", "for", "use", "in", "syslog", "statements", ".", "If", "the", "executable", "is", "linked", "the", "name", "of", "the", "link", "will", "be", "used", "as", "the", "tag", "otherwise", "the", "name", "of", "the", "executable", "is", "used", ".", "gnatsd", "is", "the", "default", "for", "the", "NATS", "server", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/logger/syslog.go#L42-L51
164,338
nats-io/gnatsd
logger/syslog.go
NewSysLogger
func NewSysLogger(debug, trace bool) *SysLogger { w, err := syslog.New(syslog.LOG_DAEMON|syslog.LOG_NOTICE, GetSysLoggerTag()) if err != nil { log.Fatalf("error connecting to syslog: %q", err.Error()) } return &SysLogger{ writer: w, debug: debug, trace: trace, } }
go
func NewSysLogger(debug, trace bool) *SysLogger { w, err := syslog.New(syslog.LOG_DAEMON|syslog.LOG_NOTICE, GetSysLoggerTag()) if err != nil { log.Fatalf("error connecting to syslog: %q", err.Error()) } return &SysLogger{ writer: w, debug: debug, trace: trace, } }
[ "func", "NewSysLogger", "(", "debug", ",", "trace", "bool", ")", "*", "SysLogger", "{", "w", ",", "err", ":=", "syslog", ".", "New", "(", "syslog", ".", "LOG_DAEMON", "|", "syslog", ".", "LOG_NOTICE", ",", "GetSysLoggerTag", "(", ")", ")", "\n", "if", "err", "!=", "nil", "{", "log", ".", "Fatalf", "(", "\"", "\"", ",", "err", ".", "Error", "(", ")", ")", "\n", "}", "\n\n", "return", "&", "SysLogger", "{", "writer", ":", "w", ",", "debug", ":", "debug", ",", "trace", ":", "trace", ",", "}", "\n", "}" ]
// NewSysLogger creates a new system logger
[ "NewSysLogger", "creates", "a", "new", "system", "logger" ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/logger/syslog.go#L54-L65
164,339
nats-io/gnatsd
logger/syslog.go
NewRemoteSysLogger
func NewRemoteSysLogger(fqn string, debug, trace bool) *SysLogger { network, addr := getNetworkAndAddr(fqn) w, err := syslog.Dial(network, addr, syslog.LOG_DEBUG, GetSysLoggerTag()) if err != nil { log.Fatalf("error connecting to syslog: %q", err.Error()) } return &SysLogger{ writer: w, debug: debug, trace: trace, } }
go
func NewRemoteSysLogger(fqn string, debug, trace bool) *SysLogger { network, addr := getNetworkAndAddr(fqn) w, err := syslog.Dial(network, addr, syslog.LOG_DEBUG, GetSysLoggerTag()) if err != nil { log.Fatalf("error connecting to syslog: %q", err.Error()) } return &SysLogger{ writer: w, debug: debug, trace: trace, } }
[ "func", "NewRemoteSysLogger", "(", "fqn", "string", ",", "debug", ",", "trace", "bool", ")", "*", "SysLogger", "{", "network", ",", "addr", ":=", "getNetworkAndAddr", "(", "fqn", ")", "\n", "w", ",", "err", ":=", "syslog", ".", "Dial", "(", "network", ",", "addr", ",", "syslog", ".", "LOG_DEBUG", ",", "GetSysLoggerTag", "(", ")", ")", "\n", "if", "err", "!=", "nil", "{", "log", ".", "Fatalf", "(", "\"", "\"", ",", "err", ".", "Error", "(", ")", ")", "\n", "}", "\n\n", "return", "&", "SysLogger", "{", "writer", ":", "w", ",", "debug", ":", "debug", ",", "trace", ":", "trace", ",", "}", "\n", "}" ]
// NewRemoteSysLogger creates a new remote system logger
[ "NewRemoteSysLogger", "creates", "a", "new", "remote", "system", "logger" ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/logger/syslog.go#L68-L80
164,340
nats-io/gnatsd
server/signal.go
ProcessSignal
func ProcessSignal(command Command, pidStr string) error { var pid int if pidStr == "" { pids, err := resolvePids() if err != nil { return err } if len(pids) == 0 { return fmt.Errorf("no %s processes running", processName) } if len(pids) > 1 { errStr := fmt.Sprintf("multiple %s processes running:\n", processName) prefix := "" for _, p := range pids { errStr += fmt.Sprintf("%s%d", prefix, p) prefix = "\n" } return errors.New(errStr) } pid = pids[0] } else { p, err := strconv.Atoi(pidStr) if err != nil { return fmt.Errorf("invalid pid: %s", pidStr) } pid = p } var err error switch command { case CommandStop: err = kill(pid, syscall.SIGKILL) case CommandQuit: err = kill(pid, syscall.SIGINT) case CommandReopen: err = kill(pid, syscall.SIGUSR1) case CommandReload: err = kill(pid, syscall.SIGHUP) case commandLDMode: err = kill(pid, syscall.SIGUSR2) default: err = fmt.Errorf("unknown signal %q", command) } return err }
go
func ProcessSignal(command Command, pidStr string) error { var pid int if pidStr == "" { pids, err := resolvePids() if err != nil { return err } if len(pids) == 0 { return fmt.Errorf("no %s processes running", processName) } if len(pids) > 1 { errStr := fmt.Sprintf("multiple %s processes running:\n", processName) prefix := "" for _, p := range pids { errStr += fmt.Sprintf("%s%d", prefix, p) prefix = "\n" } return errors.New(errStr) } pid = pids[0] } else { p, err := strconv.Atoi(pidStr) if err != nil { return fmt.Errorf("invalid pid: %s", pidStr) } pid = p } var err error switch command { case CommandStop: err = kill(pid, syscall.SIGKILL) case CommandQuit: err = kill(pid, syscall.SIGINT) case CommandReopen: err = kill(pid, syscall.SIGUSR1) case CommandReload: err = kill(pid, syscall.SIGHUP) case commandLDMode: err = kill(pid, syscall.SIGUSR2) default: err = fmt.Errorf("unknown signal %q", command) } return err }
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// ProcessSignal sends the given signal command to the given process. If pidStr // is empty, this will send the signal to the single running instance of // gnatsd. If multiple instances are running, it returns an error. This returns // an error if the given process is not running or the command is invalid.
[ "ProcessSignal", "sends", "the", "given", "signal", "command", "to", "the", "given", "process", ".", "If", "pidStr", "is", "empty", "this", "will", "send", "the", "signal", "to", "the", "single", "running", "instance", "of", "gnatsd", ".", "If", "multiple", "instances", "are", "running", "it", "returns", "an", "error", ".", "This", "returns", "an", "error", "if", "the", "given", "process", "is", "not", "running", "or", "the", "command", "is", "invalid", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/signal.go#L76-L120
164,341
nats-io/gnatsd
server/signal.go
resolvePids
func resolvePids() ([]int, error) { // If pgrep isn't available, this will just bail out and the user will be // required to specify a pid. output, err := pgrep() if err != nil { switch err.(type) { case *exec.ExitError: // ExitError indicates non-zero exit code, meaning no processes // found. break default: return nil, errors.New("unable to resolve pid, try providing one") } } var ( myPid = os.Getpid() pidStrs = strings.Split(string(output), "\n") pids = make([]int, 0, len(pidStrs)) ) for _, pidStr := range pidStrs { if pidStr == "" { continue } pid, err := strconv.Atoi(pidStr) if err != nil { return nil, errors.New("unable to resolve pid, try providing one") } // Ignore the current process. if pid == myPid { continue } pids = append(pids, pid) } return pids, nil }
go
func resolvePids() ([]int, error) { // If pgrep isn't available, this will just bail out and the user will be // required to specify a pid. output, err := pgrep() if err != nil { switch err.(type) { case *exec.ExitError: // ExitError indicates non-zero exit code, meaning no processes // found. break default: return nil, errors.New("unable to resolve pid, try providing one") } } var ( myPid = os.Getpid() pidStrs = strings.Split(string(output), "\n") pids = make([]int, 0, len(pidStrs)) ) for _, pidStr := range pidStrs { if pidStr == "" { continue } pid, err := strconv.Atoi(pidStr) if err != nil { return nil, errors.New("unable to resolve pid, try providing one") } // Ignore the current process. if pid == myPid { continue } pids = append(pids, pid) } return pids, nil }
[ "func", "resolvePids", "(", ")", "(", "[", "]", "int", ",", "error", ")", "{", "// If pgrep isn't available, this will just bail out and the user will be", "// required to specify a pid.", "output", ",", "err", ":=", "pgrep", "(", ")", "\n", "if", "err", "!=", "nil", "{", "switch", "err", ".", "(", "type", ")", "{", "case", "*", "exec", ".", "ExitError", ":", "// ExitError indicates non-zero exit code, meaning no processes", "// found.", "break", "\n", "default", ":", "return", "nil", ",", "errors", ".", "New", "(", "\"", "\"", ")", "\n", "}", "\n", "}", "\n", "var", "(", "myPid", "=", "os", ".", "Getpid", "(", ")", "\n", "pidStrs", "=", "strings", ".", "Split", "(", "string", "(", "output", ")", ",", "\"", "\\n", "\"", ")", "\n", "pids", "=", "make", "(", "[", "]", "int", ",", "0", ",", "len", "(", "pidStrs", ")", ")", "\n", ")", "\n", "for", "_", ",", "pidStr", ":=", "range", "pidStrs", "{", "if", "pidStr", "==", "\"", "\"", "{", "continue", "\n", "}", "\n", "pid", ",", "err", ":=", "strconv", ".", "Atoi", "(", "pidStr", ")", "\n", "if", "err", "!=", "nil", "{", "return", "nil", ",", "errors", ".", "New", "(", "\"", "\"", ")", "\n", "}", "\n", "// Ignore the current process.", "if", "pid", "==", "myPid", "{", "continue", "\n", "}", "\n", "pids", "=", "append", "(", "pids", ",", "pid", ")", "\n", "}", "\n", "return", "pids", ",", "nil", "\n", "}" ]
// resolvePids returns the pids for all running gnatsd processes.
[ "resolvePids", "returns", "the", "pids", "for", "all", "running", "gnatsd", "processes", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/signal.go#L123-L157
164,342
nats-io/gnatsd
conf/lex.go
lexTop
func lexTop(lx *lexer) stateFn { r := lx.next() if unicode.IsSpace(r) { return lexSkip(lx, lexTop) } switch r { case topOptStart: return lexSkip(lx, lexTop) case commentHashStart: lx.push(lexTop) return lexCommentStart case commentSlashStart: rn := lx.next() if rn == commentSlashStart { lx.push(lexTop) return lexCommentStart } lx.backup() fallthrough case eof: if lx.pos > lx.start { return lx.errorf("Unexpected EOF.") } lx.emit(itemEOF) return nil } // At this point, the only valid item can be a key, so we back up // and let the key lexer do the rest. lx.backup() lx.push(lexTopValueEnd) return lexKeyStart }
go
func lexTop(lx *lexer) stateFn { r := lx.next() if unicode.IsSpace(r) { return lexSkip(lx, lexTop) } switch r { case topOptStart: return lexSkip(lx, lexTop) case commentHashStart: lx.push(lexTop) return lexCommentStart case commentSlashStart: rn := lx.next() if rn == commentSlashStart { lx.push(lexTop) return lexCommentStart } lx.backup() fallthrough case eof: if lx.pos > lx.start { return lx.errorf("Unexpected EOF.") } lx.emit(itemEOF) return nil } // At this point, the only valid item can be a key, so we back up // and let the key lexer do the rest. lx.backup() lx.push(lexTopValueEnd) return lexKeyStart }
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// lexTop consumes elements at the top level of data structure.
[ "lexTop", "consumes", "elements", "at", "the", "top", "level", "of", "data", "structure", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/conf/lex.go#L257-L290
164,343
nats-io/gnatsd
conf/lex.go
lexTopValueEnd
func lexTopValueEnd(lx *lexer) stateFn { r := lx.next() switch { case r == commentHashStart: // a comment will read to a new line for us. lx.push(lexTop) return lexCommentStart case r == commentSlashStart: rn := lx.next() if rn == commentSlashStart { lx.push(lexTop) return lexCommentStart } lx.backup() fallthrough case isWhitespace(r): return lexTopValueEnd case isNL(r) || r == eof || r == optValTerm || r == topOptValTerm || r == topOptTerm: lx.ignore() return lexTop } return lx.errorf("Expected a top-level value to end with a new line, "+ "comment or EOF, but got '%v' instead.", r) }
go
func lexTopValueEnd(lx *lexer) stateFn { r := lx.next() switch { case r == commentHashStart: // a comment will read to a new line for us. lx.push(lexTop) return lexCommentStart case r == commentSlashStart: rn := lx.next() if rn == commentSlashStart { lx.push(lexTop) return lexCommentStart } lx.backup() fallthrough case isWhitespace(r): return lexTopValueEnd case isNL(r) || r == eof || r == optValTerm || r == topOptValTerm || r == topOptTerm: lx.ignore() return lexTop } return lx.errorf("Expected a top-level value to end with a new line, "+ "comment or EOF, but got '%v' instead.", r) }
[ "func", "lexTopValueEnd", "(", "lx", "*", "lexer", ")", "stateFn", "{", "r", ":=", "lx", ".", "next", "(", ")", "\n", "switch", "{", "case", "r", "==", "commentHashStart", ":", "// a comment will read to a new line for us.", "lx", ".", "push", "(", "lexTop", ")", "\n", "return", "lexCommentStart", "\n", "case", "r", "==", "commentSlashStart", ":", "rn", ":=", "lx", ".", "next", "(", ")", "\n", "if", "rn", "==", "commentSlashStart", "{", "lx", ".", "push", "(", "lexTop", ")", "\n", "return", "lexCommentStart", "\n", "}", "\n", "lx", ".", "backup", "(", ")", "\n", "fallthrough", "\n", "case", "isWhitespace", "(", "r", ")", ":", "return", "lexTopValueEnd", "\n", "case", "isNL", "(", "r", ")", "||", "r", "==", "eof", "||", "r", "==", "optValTerm", "||", "r", "==", "topOptValTerm", "||", "r", "==", "topOptTerm", ":", "lx", ".", "ignore", "(", ")", "\n", "return", "lexTop", "\n", "}", "\n", "return", "lx", ".", "errorf", "(", "\"", "\"", "+", "\"", "\"", ",", "r", ")", "\n", "}" ]
// lexTopValueEnd is entered whenever a top-level value has been consumed. // It must see only whitespace, and will turn back to lexTop upon a new line. // If it sees EOF, it will quit the lexer successfully.
[ "lexTopValueEnd", "is", "entered", "whenever", "a", "top", "-", "level", "value", "has", "been", "consumed", ".", "It", "must", "see", "only", "whitespace", "and", "will", "turn", "back", "to", "lexTop", "upon", "a", "new", "line", ".", "If", "it", "sees", "EOF", "it", "will", "quit", "the", "lexer", "successfully", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/conf/lex.go#L295-L318
164,344
nats-io/gnatsd
conf/lex.go
keyCheckKeyword
func (lx *lexer) keyCheckKeyword(fallThrough, push stateFn) stateFn { key := strings.ToLower(lx.input[lx.start:lx.pos]) switch key { case "include": lx.ignore() if push != nil { lx.push(push) } return lexIncludeStart } lx.emit(itemKey) return fallThrough }
go
func (lx *lexer) keyCheckKeyword(fallThrough, push stateFn) stateFn { key := strings.ToLower(lx.input[lx.start:lx.pos]) switch key { case "include": lx.ignore() if push != nil { lx.push(push) } return lexIncludeStart } lx.emit(itemKey) return fallThrough }
[ "func", "(", "lx", "*", "lexer", ")", "keyCheckKeyword", "(", "fallThrough", ",", "push", "stateFn", ")", "stateFn", "{", "key", ":=", "strings", ".", "ToLower", "(", "lx", ".", "input", "[", "lx", ".", "start", ":", "lx", ".", "pos", "]", ")", "\n", "switch", "key", "{", "case", "\"", "\"", ":", "lx", ".", "ignore", "(", ")", "\n", "if", "push", "!=", "nil", "{", "lx", ".", "push", "(", "push", ")", "\n", "}", "\n", "return", "lexIncludeStart", "\n", "}", "\n", "lx", ".", "emit", "(", "itemKey", ")", "\n", "return", "fallThrough", "\n", "}" ]
// keyCheckKeyword will check for reserved keywords as the key value when the key is // separated with a space.
[ "keyCheckKeyword", "will", "check", "for", "reserved", "keywords", "as", "the", "key", "value", "when", "the", "key", "is", "separated", "with", "a", "space", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/conf/lex.go#L380-L392
164,345
nats-io/gnatsd
conf/lex.go
lexIncludeStart
func lexIncludeStart(lx *lexer) stateFn { r := lx.next() if isWhitespace(r) { return lexSkip(lx, lexIncludeStart) } lx.backup() return lexInclude }
go
func lexIncludeStart(lx *lexer) stateFn { r := lx.next() if isWhitespace(r) { return lexSkip(lx, lexIncludeStart) } lx.backup() return lexInclude }
[ "func", "lexIncludeStart", "(", "lx", "*", "lexer", ")", "stateFn", "{", "r", ":=", "lx", ".", "next", "(", ")", "\n", "if", "isWhitespace", "(", "r", ")", "{", "return", "lexSkip", "(", "lx", ",", "lexIncludeStart", ")", "\n", "}", "\n", "lx", ".", "backup", "(", ")", "\n", "return", "lexInclude", "\n", "}" ]
// lexIncludeStart will consume the whitespace til the start of the value.
[ "lexIncludeStart", "will", "consume", "the", "whitespace", "til", "the", "start", "of", "the", "value", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/conf/lex.go#L395-L402
164,346
nats-io/gnatsd
conf/lex.go
lexIncludeQuotedString
func lexIncludeQuotedString(lx *lexer) stateFn { r := lx.next() switch { case r == sqStringEnd: lx.backup() lx.emit(itemInclude) lx.next() lx.ignore() return lx.pop() } return lexIncludeQuotedString }
go
func lexIncludeQuotedString(lx *lexer) stateFn { r := lx.next() switch { case r == sqStringEnd: lx.backup() lx.emit(itemInclude) lx.next() lx.ignore() return lx.pop() } return lexIncludeQuotedString }
[ "func", "lexIncludeQuotedString", "(", "lx", "*", "lexer", ")", "stateFn", "{", "r", ":=", "lx", ".", "next", "(", ")", "\n", "switch", "{", "case", "r", "==", "sqStringEnd", ":", "lx", ".", "backup", "(", ")", "\n", "lx", ".", "emit", "(", "itemInclude", ")", "\n", "lx", ".", "next", "(", ")", "\n", "lx", ".", "ignore", "(", ")", "\n", "return", "lx", ".", "pop", "(", ")", "\n", "}", "\n", "return", "lexIncludeQuotedString", "\n", "}" ]
// lexIncludeQuotedString consumes the inner contents of a string. It assumes that the // beginning '"' has already been consumed and ignored. It will not interpret any // internal contents.
[ "lexIncludeQuotedString", "consumes", "the", "inner", "contents", "of", "a", "string", ".", "It", "assumes", "that", "the", "beginning", "has", "already", "been", "consumed", "and", "ignored", ".", "It", "will", "not", "interpret", "any", "internal", "contents", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/conf/lex.go#L407-L418
164,347
nats-io/gnatsd
conf/lex.go
lexIncludeDubQuotedString
func lexIncludeDubQuotedString(lx *lexer) stateFn { r := lx.next() switch { case r == dqStringEnd: lx.backup() lx.emit(itemInclude) lx.next() lx.ignore() return lx.pop() } return lexIncludeDubQuotedString }
go
func lexIncludeDubQuotedString(lx *lexer) stateFn { r := lx.next() switch { case r == dqStringEnd: lx.backup() lx.emit(itemInclude) lx.next() lx.ignore() return lx.pop() } return lexIncludeDubQuotedString }
[ "func", "lexIncludeDubQuotedString", "(", "lx", "*", "lexer", ")", "stateFn", "{", "r", ":=", "lx", ".", "next", "(", ")", "\n", "switch", "{", "case", "r", "==", "dqStringEnd", ":", "lx", ".", "backup", "(", ")", "\n", "lx", ".", "emit", "(", "itemInclude", ")", "\n", "lx", ".", "next", "(", ")", "\n", "lx", ".", "ignore", "(", ")", "\n", "return", "lx", ".", "pop", "(", ")", "\n", "}", "\n", "return", "lexIncludeDubQuotedString", "\n", "}" ]
// lexIncludeDubQuotedString consumes the inner contents of a string. It assumes that the // beginning '"' has already been consumed and ignored. It will not interpret any // internal contents.
[ "lexIncludeDubQuotedString", "consumes", "the", "inner", "contents", "of", "a", "string", ".", "It", "assumes", "that", "the", "beginning", "has", "already", "been", "consumed", "and", "ignored", ".", "It", "will", "not", "interpret", "any", "internal", "contents", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/conf/lex.go#L423-L434
164,348
nats-io/gnatsd
conf/lex.go
lexIncludeString
func lexIncludeString(lx *lexer) stateFn { r := lx.next() switch { case isNL(r) || r == eof || r == optValTerm || r == mapEnd || isWhitespace(r): lx.backup() lx.emit(itemInclude) return lx.pop() case r == sqStringEnd: lx.backup() lx.emit(itemInclude) lx.next() lx.ignore() return lx.pop() } return lexIncludeString }
go
func lexIncludeString(lx *lexer) stateFn { r := lx.next() switch { case isNL(r) || r == eof || r == optValTerm || r == mapEnd || isWhitespace(r): lx.backup() lx.emit(itemInclude) return lx.pop() case r == sqStringEnd: lx.backup() lx.emit(itemInclude) lx.next() lx.ignore() return lx.pop() } return lexIncludeString }
[ "func", "lexIncludeString", "(", "lx", "*", "lexer", ")", "stateFn", "{", "r", ":=", "lx", ".", "next", "(", ")", "\n", "switch", "{", "case", "isNL", "(", "r", ")", "||", "r", "==", "eof", "||", "r", "==", "optValTerm", "||", "r", "==", "mapEnd", "||", "isWhitespace", "(", "r", ")", ":", "lx", ".", "backup", "(", ")", "\n", "lx", ".", "emit", "(", "itemInclude", ")", "\n", "return", "lx", ".", "pop", "(", ")", "\n", "case", "r", "==", "sqStringEnd", ":", "lx", ".", "backup", "(", ")", "\n", "lx", ".", "emit", "(", "itemInclude", ")", "\n", "lx", ".", "next", "(", ")", "\n", "lx", ".", "ignore", "(", ")", "\n", "return", "lx", ".", "pop", "(", ")", "\n", "}", "\n", "return", "lexIncludeString", "\n", "}" ]
// lexIncludeString consumes the inner contents of a raw string.
[ "lexIncludeString", "consumes", "the", "inner", "contents", "of", "a", "raw", "string", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/conf/lex.go#L437-L452
164,349
nats-io/gnatsd
conf/lex.go
lexInclude
func lexInclude(lx *lexer) stateFn { r := lx.next() switch { case r == sqStringStart: lx.ignore() // ignore the " or ' return lexIncludeQuotedString case r == dqStringStart: lx.ignore() // ignore the " or ' return lexIncludeDubQuotedString case r == arrayStart: return lx.errorf("Expected include value but found start of an array") case r == mapStart: return lx.errorf("Expected include value but found start of a map") case r == blockStart: return lx.errorf("Expected include value but found start of a block") case unicode.IsDigit(r), r == '-': return lx.errorf("Expected include value but found start of a number") case r == '\\': return lx.errorf("Expected include value but found escape sequence") case isNL(r): return lx.errorf("Expected include value but found new line") } lx.backup() return lexIncludeString }
go
func lexInclude(lx *lexer) stateFn { r := lx.next() switch { case r == sqStringStart: lx.ignore() // ignore the " or ' return lexIncludeQuotedString case r == dqStringStart: lx.ignore() // ignore the " or ' return lexIncludeDubQuotedString case r == arrayStart: return lx.errorf("Expected include value but found start of an array") case r == mapStart: return lx.errorf("Expected include value but found start of a map") case r == blockStart: return lx.errorf("Expected include value but found start of a block") case unicode.IsDigit(r), r == '-': return lx.errorf("Expected include value but found start of a number") case r == '\\': return lx.errorf("Expected include value but found escape sequence") case isNL(r): return lx.errorf("Expected include value but found new line") } lx.backup() return lexIncludeString }
[ "func", "lexInclude", "(", "lx", "*", "lexer", ")", "stateFn", "{", "r", ":=", "lx", ".", "next", "(", ")", "\n", "switch", "{", "case", "r", "==", "sqStringStart", ":", "lx", ".", "ignore", "(", ")", "// ignore the \" or '", "\n", "return", "lexIncludeQuotedString", "\n", "case", "r", "==", "dqStringStart", ":", "lx", ".", "ignore", "(", ")", "// ignore the \" or '", "\n", "return", "lexIncludeDubQuotedString", "\n", "case", "r", "==", "arrayStart", ":", "return", "lx", ".", "errorf", "(", "\"", "\"", ")", "\n", "case", "r", "==", "mapStart", ":", "return", "lx", ".", "errorf", "(", "\"", "\"", ")", "\n", "case", "r", "==", "blockStart", ":", "return", "lx", ".", "errorf", "(", "\"", "\"", ")", "\n", "case", "unicode", ".", "IsDigit", "(", "r", ")", ",", "r", "==", "'-'", ":", "return", "lx", ".", "errorf", "(", "\"", "\"", ")", "\n", "case", "r", "==", "'\\\\'", ":", "return", "lx", ".", "errorf", "(", "\"", "\"", ")", "\n", "case", "isNL", "(", "r", ")", ":", "return", "lx", ".", "errorf", "(", "\"", "\"", ")", "\n", "}", "\n", "lx", ".", "backup", "(", ")", "\n", "return", "lexIncludeString", "\n", "}" ]
// lexInclude will consume the include value.
[ "lexInclude", "will", "consume", "the", "include", "value", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/conf/lex.go#L455-L479
164,350
nats-io/gnatsd
conf/lex.go
lexArrayValueEnd
func lexArrayValueEnd(lx *lexer) stateFn { r := lx.next() switch { case isWhitespace(r): return lexSkip(lx, lexArrayValueEnd) case r == commentHashStart: lx.push(lexArrayValueEnd) return lexCommentStart case r == commentSlashStart: rn := lx.next() if rn == commentSlashStart { lx.push(lexArrayValueEnd) return lexCommentStart } lx.backup() fallthrough case r == arrayValTerm || isNL(r): return lexSkip(lx, lexArrayValue) // Move onto next case r == arrayEnd: return lexArrayEnd } return lx.errorf("Expected an array value terminator %q or an array "+ "terminator %q, but got '%v' instead.", arrayValTerm, arrayEnd, r) }
go
func lexArrayValueEnd(lx *lexer) stateFn { r := lx.next() switch { case isWhitespace(r): return lexSkip(lx, lexArrayValueEnd) case r == commentHashStart: lx.push(lexArrayValueEnd) return lexCommentStart case r == commentSlashStart: rn := lx.next() if rn == commentSlashStart { lx.push(lexArrayValueEnd) return lexCommentStart } lx.backup() fallthrough case r == arrayValTerm || isNL(r): return lexSkip(lx, lexArrayValue) // Move onto next case r == arrayEnd: return lexArrayEnd } return lx.errorf("Expected an array value terminator %q or an array "+ "terminator %q, but got '%v' instead.", arrayValTerm, arrayEnd, r) }
[ "func", "lexArrayValueEnd", "(", "lx", "*", "lexer", ")", "stateFn", "{", "r", ":=", "lx", ".", "next", "(", ")", "\n", "switch", "{", "case", "isWhitespace", "(", "r", ")", ":", "return", "lexSkip", "(", "lx", ",", "lexArrayValueEnd", ")", "\n", "case", "r", "==", "commentHashStart", ":", "lx", ".", "push", "(", "lexArrayValueEnd", ")", "\n", "return", "lexCommentStart", "\n", "case", "r", "==", "commentSlashStart", ":", "rn", ":=", "lx", ".", "next", "(", ")", "\n", "if", "rn", "==", "commentSlashStart", "{", "lx", ".", "push", "(", "lexArrayValueEnd", ")", "\n", "return", "lexCommentStart", "\n", "}", "\n", "lx", ".", "backup", "(", ")", "\n", "fallthrough", "\n", "case", "r", "==", "arrayValTerm", "||", "isNL", "(", "r", ")", ":", "return", "lexSkip", "(", "lx", ",", "lexArrayValue", ")", "// Move onto next", "\n", "case", "r", "==", "arrayEnd", ":", "return", "lexArrayEnd", "\n", "}", "\n", "return", "lx", ".", "errorf", "(", "\"", "\"", "+", "\"", "\"", ",", "arrayValTerm", ",", "arrayEnd", ",", "r", ")", "\n", "}" ]
// lexArrayValueEnd consumes the cruft between values of an array. Namely, // it ignores whitespace and expects either a ',' or a ']'.
[ "lexArrayValueEnd", "consumes", "the", "cruft", "between", "values", "of", "an", "array", ".", "Namely", "it", "ignores", "whitespace", "and", "expects", "either", "a", "or", "a", "]", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/conf/lex.go#L592-L615
164,351
nats-io/gnatsd
conf/lex.go
lexMapValue
func lexMapValue(lx *lexer) stateFn { r := lx.next() switch { case unicode.IsSpace(r): return lexSkip(lx, lexMapValue) case r == mapValTerm: return lx.errorf("Unexpected map value terminator %q.", mapValTerm) case r == mapEnd: return lexSkip(lx, lexMapEnd) } lx.backup() lx.push(lexMapValueEnd) return lexValue }
go
func lexMapValue(lx *lexer) stateFn { r := lx.next() switch { case unicode.IsSpace(r): return lexSkip(lx, lexMapValue) case r == mapValTerm: return lx.errorf("Unexpected map value terminator %q.", mapValTerm) case r == mapEnd: return lexSkip(lx, lexMapEnd) } lx.backup() lx.push(lexMapValueEnd) return lexValue }
[ "func", "lexMapValue", "(", "lx", "*", "lexer", ")", "stateFn", "{", "r", ":=", "lx", ".", "next", "(", ")", "\n", "switch", "{", "case", "unicode", ".", "IsSpace", "(", "r", ")", ":", "return", "lexSkip", "(", "lx", ",", "lexMapValue", ")", "\n", "case", "r", "==", "mapValTerm", ":", "return", "lx", ".", "errorf", "(", "\"", "\"", ",", "mapValTerm", ")", "\n", "case", "r", "==", "mapEnd", ":", "return", "lexSkip", "(", "lx", ",", "lexMapEnd", ")", "\n", "}", "\n", "lx", ".", "backup", "(", ")", "\n", "lx", ".", "push", "(", "lexMapValueEnd", ")", "\n", "return", "lexValue", "\n", "}" ]
// lexMapValue consumes one value in a map. It assumes that '{' or ',' // have already been consumed. All whitespace and new lines are ignored. // Map values can be separated by ',' or simple NLs.
[ "lexMapValue", "consumes", "one", "value", "in", "a", "map", ".", "It", "assumes", "that", "{", "or", "have", "already", "been", "consumed", ".", "All", "whitespace", "and", "new", "lines", "are", "ignored", ".", "Map", "values", "can", "be", "separated", "by", "or", "simple", "NLs", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/conf/lex.go#L726-L739
164,352
nats-io/gnatsd
conf/lex.go
lexMapValueEnd
func lexMapValueEnd(lx *lexer) stateFn { r := lx.next() switch { case isWhitespace(r): return lexSkip(lx, lexMapValueEnd) case r == commentHashStart: lx.push(lexMapValueEnd) return lexCommentStart case r == commentSlashStart: rn := lx.next() if rn == commentSlashStart { lx.push(lexMapValueEnd) return lexCommentStart } lx.backup() fallthrough case r == optValTerm || r == mapValTerm || isNL(r): return lexSkip(lx, lexMapKeyStart) // Move onto next case r == mapEnd: return lexSkip(lx, lexMapEnd) } return lx.errorf("Expected a map value terminator %q or a map "+ "terminator %q, but got '%v' instead.", mapValTerm, mapEnd, r) }
go
func lexMapValueEnd(lx *lexer) stateFn { r := lx.next() switch { case isWhitespace(r): return lexSkip(lx, lexMapValueEnd) case r == commentHashStart: lx.push(lexMapValueEnd) return lexCommentStart case r == commentSlashStart: rn := lx.next() if rn == commentSlashStart { lx.push(lexMapValueEnd) return lexCommentStart } lx.backup() fallthrough case r == optValTerm || r == mapValTerm || isNL(r): return lexSkip(lx, lexMapKeyStart) // Move onto next case r == mapEnd: return lexSkip(lx, lexMapEnd) } return lx.errorf("Expected a map value terminator %q or a map "+ "terminator %q, but got '%v' instead.", mapValTerm, mapEnd, r) }
[ "func", "lexMapValueEnd", "(", "lx", "*", "lexer", ")", "stateFn", "{", "r", ":=", "lx", ".", "next", "(", ")", "\n", "switch", "{", "case", "isWhitespace", "(", "r", ")", ":", "return", "lexSkip", "(", "lx", ",", "lexMapValueEnd", ")", "\n", "case", "r", "==", "commentHashStart", ":", "lx", ".", "push", "(", "lexMapValueEnd", ")", "\n", "return", "lexCommentStart", "\n", "case", "r", "==", "commentSlashStart", ":", "rn", ":=", "lx", ".", "next", "(", ")", "\n", "if", "rn", "==", "commentSlashStart", "{", "lx", ".", "push", "(", "lexMapValueEnd", ")", "\n", "return", "lexCommentStart", "\n", "}", "\n", "lx", ".", "backup", "(", ")", "\n", "fallthrough", "\n", "case", "r", "==", "optValTerm", "||", "r", "==", "mapValTerm", "||", "isNL", "(", "r", ")", ":", "return", "lexSkip", "(", "lx", ",", "lexMapKeyStart", ")", "// Move onto next", "\n", "case", "r", "==", "mapEnd", ":", "return", "lexSkip", "(", "lx", ",", "lexMapEnd", ")", "\n", "}", "\n", "return", "lx", ".", "errorf", "(", "\"", "\"", "+", "\"", "\"", ",", "mapValTerm", ",", "mapEnd", ",", "r", ")", "\n", "}" ]
// lexMapValueEnd consumes the cruft between values of a map. Namely, // it ignores whitespace and expects either a ',' or a '}'.
[ "lexMapValueEnd", "consumes", "the", "cruft", "between", "values", "of", "a", "map", ".", "Namely", "it", "ignores", "whitespace", "and", "expects", "either", "a", "or", "a", "}", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/conf/lex.go#L743-L766
164,353
nats-io/gnatsd
conf/lex.go
lexMapEnd
func lexMapEnd(lx *lexer) stateFn { lx.ignore() lx.emit(itemMapEnd) return lx.pop() }
go
func lexMapEnd(lx *lexer) stateFn { lx.ignore() lx.emit(itemMapEnd) return lx.pop() }
[ "func", "lexMapEnd", "(", "lx", "*", "lexer", ")", "stateFn", "{", "lx", ".", "ignore", "(", ")", "\n", "lx", ".", "emit", "(", "itemMapEnd", ")", "\n", "return", "lx", ".", "pop", "(", ")", "\n", "}" ]
// lexMapEnd finishes the lexing of a map. It assumes that a '}' has // just been consumed.
[ "lexMapEnd", "finishes", "the", "lexing", "of", "a", "map", ".", "It", "assumes", "that", "a", "}", "has", "just", "been", "consumed", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/conf/lex.go#L770-L774
164,354
nats-io/gnatsd
conf/lex.go
isBool
func (lx *lexer) isBool() bool { str := strings.ToLower(lx.input[lx.start:lx.pos]) return str == "true" || str == "false" || str == "on" || str == "off" || str == "yes" || str == "no" }
go
func (lx *lexer) isBool() bool { str := strings.ToLower(lx.input[lx.start:lx.pos]) return str == "true" || str == "false" || str == "on" || str == "off" || str == "yes" || str == "no" }
[ "func", "(", "lx", "*", "lexer", ")", "isBool", "(", ")", "bool", "{", "str", ":=", "strings", ".", "ToLower", "(", "lx", ".", "input", "[", "lx", ".", "start", ":", "lx", ".", "pos", "]", ")", "\n", "return", "str", "==", "\"", "\"", "||", "str", "==", "\"", "\"", "||", "str", "==", "\"", "\"", "||", "str", "==", "\"", "\"", "||", "str", "==", "\"", "\"", "||", "str", "==", "\"", "\"", "\n", "}" ]
// Checks if the unquoted string was actually a boolean
[ "Checks", "if", "the", "unquoted", "string", "was", "actually", "a", "boolean" ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/conf/lex.go#L777-L782
164,355
nats-io/gnatsd
conf/lex.go
lexString
func lexString(lx *lexer) stateFn { r := lx.next() switch { case r == '\\': lx.addCurrentStringPart(1) return lexStringEscape // Termination of non-quoted strings case isNL(r) || r == eof || r == optValTerm || r == arrayValTerm || r == arrayEnd || r == mapEnd || isWhitespace(r): lx.backup() if lx.hasEscapedParts() { lx.emitString() } else if lx.isBool() { lx.emit(itemBool) } else if lx.isVariable() { lx.emit(itemVariable) } else { lx.emitString() } return lx.pop() case r == sqStringEnd: lx.backup() lx.emitString() lx.next() lx.ignore() return lx.pop() } return lexString }
go
func lexString(lx *lexer) stateFn { r := lx.next() switch { case r == '\\': lx.addCurrentStringPart(1) return lexStringEscape // Termination of non-quoted strings case isNL(r) || r == eof || r == optValTerm || r == arrayValTerm || r == arrayEnd || r == mapEnd || isWhitespace(r): lx.backup() if lx.hasEscapedParts() { lx.emitString() } else if lx.isBool() { lx.emit(itemBool) } else if lx.isVariable() { lx.emit(itemVariable) } else { lx.emitString() } return lx.pop() case r == sqStringEnd: lx.backup() lx.emitString() lx.next() lx.ignore() return lx.pop() } return lexString }
[ "func", "lexString", "(", "lx", "*", "lexer", ")", "stateFn", "{", "r", ":=", "lx", ".", "next", "(", ")", "\n", "switch", "{", "case", "r", "==", "'\\\\'", ":", "lx", ".", "addCurrentStringPart", "(", "1", ")", "\n", "return", "lexStringEscape", "\n", "// Termination of non-quoted strings", "case", "isNL", "(", "r", ")", "||", "r", "==", "eof", "||", "r", "==", "optValTerm", "||", "r", "==", "arrayValTerm", "||", "r", "==", "arrayEnd", "||", "r", "==", "mapEnd", "||", "isWhitespace", "(", "r", ")", ":", "lx", ".", "backup", "(", ")", "\n", "if", "lx", ".", "hasEscapedParts", "(", ")", "{", "lx", ".", "emitString", "(", ")", "\n", "}", "else", "if", "lx", ".", "isBool", "(", ")", "{", "lx", ".", "emit", "(", "itemBool", ")", "\n", "}", "else", "if", "lx", ".", "isVariable", "(", ")", "{", "lx", ".", "emit", "(", "itemVariable", ")", "\n", "}", "else", "{", "lx", ".", "emitString", "(", ")", "\n", "}", "\n", "return", "lx", ".", "pop", "(", ")", "\n", "case", "r", "==", "sqStringEnd", ":", "lx", ".", "backup", "(", ")", "\n", "lx", ".", "emitString", "(", ")", "\n", "lx", ".", "next", "(", ")", "\n", "lx", ".", "ignore", "(", ")", "\n", "return", "lx", ".", "pop", "(", ")", "\n", "}", "\n", "return", "lexString", "\n", "}" ]
// lexString consumes the inner contents of a raw string.
[ "lexString", "consumes", "the", "inner", "contents", "of", "a", "raw", "string", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/conf/lex.go#L841-L871
164,356
nats-io/gnatsd
conf/lex.go
lexDateAfterYear
func lexDateAfterYear(lx *lexer) stateFn { formats := []rune{ // digits are '0'. // everything else is direct equality. '0', '0', '-', '0', '0', 'T', '0', '0', ':', '0', '0', ':', '0', '0', 'Z', } for _, f := range formats { r := lx.next() if f == '0' { if !unicode.IsDigit(r) { return lx.errorf("Expected digit in ISO8601 datetime, "+ "but found '%v' instead.", r) } } else if f != r { return lx.errorf("Expected '%v' in ISO8601 datetime, "+ "but found '%v' instead.", f, r) } } lx.emit(itemDatetime) return lx.pop() }
go
func lexDateAfterYear(lx *lexer) stateFn { formats := []rune{ // digits are '0'. // everything else is direct equality. '0', '0', '-', '0', '0', 'T', '0', '0', ':', '0', '0', ':', '0', '0', 'Z', } for _, f := range formats { r := lx.next() if f == '0' { if !unicode.IsDigit(r) { return lx.errorf("Expected digit in ISO8601 datetime, "+ "but found '%v' instead.", r) } } else if f != r { return lx.errorf("Expected '%v' in ISO8601 datetime, "+ "but found '%v' instead.", f, r) } } lx.emit(itemDatetime) return lx.pop() }
[ "func", "lexDateAfterYear", "(", "lx", "*", "lexer", ")", "stateFn", "{", "formats", ":=", "[", "]", "rune", "{", "// digits are '0'.", "// everything else is direct equality.", "'0'", ",", "'0'", ",", "'-'", ",", "'0'", ",", "'0'", ",", "'T'", ",", "'0'", ",", "'0'", ",", "':'", ",", "'0'", ",", "'0'", ",", "':'", ",", "'0'", ",", "'0'", ",", "'Z'", ",", "}", "\n", "for", "_", ",", "f", ":=", "range", "formats", "{", "r", ":=", "lx", ".", "next", "(", ")", "\n", "if", "f", "==", "'0'", "{", "if", "!", "unicode", ".", "IsDigit", "(", "r", ")", "{", "return", "lx", ".", "errorf", "(", "\"", "\"", "+", "\"", "\"", ",", "r", ")", "\n", "}", "\n", "}", "else", "if", "f", "!=", "r", "{", "return", "lx", ".", "errorf", "(", "\"", "\"", "+", "\"", "\"", ",", "f", ",", "r", ")", "\n", "}", "\n", "}", "\n", "lx", ".", "emit", "(", "itemDatetime", ")", "\n", "return", "lx", ".", "pop", "(", ")", "\n", "}" ]
// lexDateAfterYear consumes a full Zulu Datetime in ISO8601 format. // It assumes that "YYYY-" has already been consumed.
[ "lexDateAfterYear", "consumes", "a", "full", "Zulu", "Datetime", "in", "ISO8601", "format", ".", "It", "assumes", "that", "YYYY", "-", "has", "already", "been", "consumed", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/conf/lex.go#L1008-L1031
164,357
nats-io/gnatsd
conf/lex.go
lexNegNumber
func lexNegNumber(lx *lexer) stateFn { r := lx.next() switch { case unicode.IsDigit(r): return lexNegNumber case r == '.': return lexFloatStart case isNumberSuffix(r): return lexConvenientNumber } lx.backup() lx.emit(itemInteger) return lx.pop() }
go
func lexNegNumber(lx *lexer) stateFn { r := lx.next() switch { case unicode.IsDigit(r): return lexNegNumber case r == '.': return lexFloatStart case isNumberSuffix(r): return lexConvenientNumber } lx.backup() lx.emit(itemInteger) return lx.pop() }
[ "func", "lexNegNumber", "(", "lx", "*", "lexer", ")", "stateFn", "{", "r", ":=", "lx", ".", "next", "(", ")", "\n", "switch", "{", "case", "unicode", ".", "IsDigit", "(", "r", ")", ":", "return", "lexNegNumber", "\n", "case", "r", "==", "'.'", ":", "return", "lexFloatStart", "\n", "case", "isNumberSuffix", "(", "r", ")", ":", "return", "lexConvenientNumber", "\n", "}", "\n", "lx", ".", "backup", "(", ")", "\n", "lx", ".", "emit", "(", "itemInteger", ")", "\n", "return", "lx", ".", "pop", "(", ")", "\n", "}" ]
// lexNumber consumes a negative integer or a float after seeing the first digit.
[ "lexNumber", "consumes", "a", "negative", "integer", "or", "a", "float", "after", "seeing", "the", "first", "digit", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/conf/lex.go#L1049-L1062
164,358
nats-io/gnatsd
conf/lex.go
lexCommentStart
func lexCommentStart(lx *lexer) stateFn { lx.ignore() lx.emit(itemCommentStart) return lexComment }
go
func lexCommentStart(lx *lexer) stateFn { lx.ignore() lx.emit(itemCommentStart) return lexComment }
[ "func", "lexCommentStart", "(", "lx", "*", "lexer", ")", "stateFn", "{", "lx", ".", "ignore", "(", ")", "\n", "lx", ".", "emit", "(", "itemCommentStart", ")", "\n", "return", "lexComment", "\n", "}" ]
// lexCommentStart begins the lexing of a comment. It will emit // itemCommentStart and consume no characters, passing control to lexComment.
[ "lexCommentStart", "begins", "the", "lexing", "of", "a", "comment", ".", "It", "will", "emit", "itemCommentStart", "and", "consume", "no", "characters", "passing", "control", "to", "lexComment", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/conf/lex.go#L1106-L1110
164,359
nats-io/gnatsd
conf/lex.go
lexSkip
func lexSkip(lx *lexer, nextState stateFn) stateFn { return func(lx *lexer) stateFn { lx.ignore() return nextState } }
go
func lexSkip(lx *lexer, nextState stateFn) stateFn { return func(lx *lexer) stateFn { lx.ignore() return nextState } }
[ "func", "lexSkip", "(", "lx", "*", "lexer", ",", "nextState", "stateFn", ")", "stateFn", "{", "return", "func", "(", "lx", "*", "lexer", ")", "stateFn", "{", "lx", ".", "ignore", "(", ")", "\n", "return", "nextState", "\n", "}", "\n", "}" ]
// lexSkip ignores all slurped input and moves on to the next state.
[ "lexSkip", "ignores", "all", "slurped", "input", "and", "moves", "on", "to", "the", "next", "state", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/conf/lex.go#L1126-L1131
164,360
nats-io/gnatsd
conf/lex.go
isNumberSuffix
func isNumberSuffix(r rune) bool { return r == 'k' || r == 'K' || r == 'm' || r == 'M' || r == 'g' || r == 'G' }
go
func isNumberSuffix(r rune) bool { return r == 'k' || r == 'K' || r == 'm' || r == 'M' || r == 'g' || r == 'G' }
[ "func", "isNumberSuffix", "(", "r", "rune", ")", "bool", "{", "return", "r", "==", "'k'", "||", "r", "==", "'K'", "||", "r", "==", "'m'", "||", "r", "==", "'M'", "||", "r", "==", "'g'", "||", "r", "==", "'G'", "\n", "}" ]
// Tests to see if we have a number suffix
[ "Tests", "to", "see", "if", "we", "have", "a", "number", "suffix" ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/conf/lex.go#L1134-L1136
164,361
nats-io/gnatsd
server/leafnode.go
solicitLeafNodeRemotes
func (s *Server) solicitLeafNodeRemotes(remotes []*RemoteLeafOpts) { for _, r := range remotes { remote := newLeafNodeCfg(r) s.startGoRoutine(func() { s.connectToRemoteLeafNode(remote) }) } }
go
func (s *Server) solicitLeafNodeRemotes(remotes []*RemoteLeafOpts) { for _, r := range remotes { remote := newLeafNodeCfg(r) s.startGoRoutine(func() { s.connectToRemoteLeafNode(remote) }) } }
[ "func", "(", "s", "*", "Server", ")", "solicitLeafNodeRemotes", "(", "remotes", "[", "]", "*", "RemoteLeafOpts", ")", "{", "for", "_", ",", "r", ":=", "range", "remotes", "{", "remote", ":=", "newLeafNodeCfg", "(", "r", ")", "\n", "s", ".", "startGoRoutine", "(", "func", "(", ")", "{", "s", ".", "connectToRemoteLeafNode", "(", "remote", ")", "}", ")", "\n", "}", "\n", "}" ]
// This will spin up go routines to solicit the remote leaf node connections.
[ "This", "will", "spin", "up", "go", "routines", "to", "solicit", "the", "remote", "leaf", "node", "connections", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/leafnode.go#L59-L64
164,362
nats-io/gnatsd
server/leafnode.go
validateLeafNode
func validateLeafNode(o *Options) error { if o.LeafNode.Port == 0 { return nil } if o.Gateway.Name == "" && o.Gateway.Port == 0 { return nil } // If we are here we have both leaf nodes and gateways defined, make sure there // is a system account defined. if o.SystemAccount == "" { return fmt.Errorf("leaf nodes and gateways (both being defined) require a system account to also be configured") } return nil }
go
func validateLeafNode(o *Options) error { if o.LeafNode.Port == 0 { return nil } if o.Gateway.Name == "" && o.Gateway.Port == 0 { return nil } // If we are here we have both leaf nodes and gateways defined, make sure there // is a system account defined. if o.SystemAccount == "" { return fmt.Errorf("leaf nodes and gateways (both being defined) require a system account to also be configured") } return nil }
[ "func", "validateLeafNode", "(", "o", "*", "Options", ")", "error", "{", "if", "o", ".", "LeafNode", ".", "Port", "==", "0", "{", "return", "nil", "\n", "}", "\n", "if", "o", ".", "Gateway", ".", "Name", "==", "\"", "\"", "&&", "o", ".", "Gateway", ".", "Port", "==", "0", "{", "return", "nil", "\n", "}", "\n", "// If we are here we have both leaf nodes and gateways defined, make sure there", "// is a system account defined.", "if", "o", ".", "SystemAccount", "==", "\"", "\"", "{", "return", "fmt", ".", "Errorf", "(", "\"", "\"", ")", "\n", "}", "\n", "return", "nil", "\n", "}" ]
// Ensure that leafnode is properly configured.
[ "Ensure", "that", "leafnode", "is", "properly", "configured", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/leafnode.go#L77-L90
164,363
nats-io/gnatsd
server/leafnode.go
newLeafNodeCfg
func newLeafNodeCfg(remote *RemoteLeafOpts) *leafNodeCfg { cfg := &leafNodeCfg{ RemoteLeafOpts: remote, urls: make([]*url.URL, 0, 4), } // Start with the one that is configured. We will add to this // array when receiving async leafnode INFOs. cfg.urls = append(cfg.urls, cfg.URL) return cfg }
go
func newLeafNodeCfg(remote *RemoteLeafOpts) *leafNodeCfg { cfg := &leafNodeCfg{ RemoteLeafOpts: remote, urls: make([]*url.URL, 0, 4), } // Start with the one that is configured. We will add to this // array when receiving async leafnode INFOs. cfg.urls = append(cfg.urls, cfg.URL) return cfg }
[ "func", "newLeafNodeCfg", "(", "remote", "*", "RemoteLeafOpts", ")", "*", "leafNodeCfg", "{", "cfg", ":=", "&", "leafNodeCfg", "{", "RemoteLeafOpts", ":", "remote", ",", "urls", ":", "make", "(", "[", "]", "*", "url", ".", "URL", ",", "0", ",", "4", ")", ",", "}", "\n", "// Start with the one that is configured. We will add to this", "// array when receiving async leafnode INFOs.", "cfg", ".", "urls", "=", "append", "(", "cfg", ".", "urls", ",", "cfg", ".", "URL", ")", "\n", "return", "cfg", "\n", "}" ]
// Creates a leafNodeCfg object that wraps the RemoteLeafOpts.
[ "Creates", "a", "leafNodeCfg", "object", "that", "wraps", "the", "RemoteLeafOpts", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/leafnode.go#L104-L113
164,364
nats-io/gnatsd
server/leafnode.go
pickNextURL
func (cfg *leafNodeCfg) pickNextURL() *url.URL { cfg.Lock() defer cfg.Unlock() // If the current URL is the first in the list and we have more than // one URL, then move that one to end of the list. if cfg.curURL != nil && len(cfg.urls) > 1 && urlsAreEqual(cfg.curURL, cfg.urls[0]) { first := cfg.urls[0] copy(cfg.urls, cfg.urls[1:]) cfg.urls[len(cfg.urls)-1] = first } cfg.curURL = cfg.urls[0] return cfg.curURL }
go
func (cfg *leafNodeCfg) pickNextURL() *url.URL { cfg.Lock() defer cfg.Unlock() // If the current URL is the first in the list and we have more than // one URL, then move that one to end of the list. if cfg.curURL != nil && len(cfg.urls) > 1 && urlsAreEqual(cfg.curURL, cfg.urls[0]) { first := cfg.urls[0] copy(cfg.urls, cfg.urls[1:]) cfg.urls[len(cfg.urls)-1] = first } cfg.curURL = cfg.urls[0] return cfg.curURL }
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// Will pick an URL from the list of available URLs.
[ "Will", "pick", "an", "URL", "from", "the", "list", "of", "available", "URLs", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/leafnode.go#L116-L128
164,365
nats-io/gnatsd
server/leafnode.go
getCurrentURL
func (cfg *leafNodeCfg) getCurrentURL() *url.URL { cfg.RLock() defer cfg.RUnlock() return cfg.curURL }
go
func (cfg *leafNodeCfg) getCurrentURL() *url.URL { cfg.RLock() defer cfg.RUnlock() return cfg.curURL }
[ "func", "(", "cfg", "*", "leafNodeCfg", ")", "getCurrentURL", "(", ")", "*", "url", ".", "URL", "{", "cfg", ".", "RLock", "(", ")", "\n", "defer", "cfg", ".", "RUnlock", "(", ")", "\n", "return", "cfg", ".", "curURL", "\n", "}" ]
// Returns the current URL
[ "Returns", "the", "current", "URL" ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/leafnode.go#L131-L135
164,366
nats-io/gnatsd
server/leafnode.go
copyLeafNodeInfo
func (s *Server) copyLeafNodeInfo() *Info { clone := s.leafNodeInfo // Copy the array of urls. if len(s.leafNodeInfo.LeafNodeURLs) > 0 { clone.LeafNodeURLs = append([]string(nil), s.leafNodeInfo.LeafNodeURLs...) } return &clone }
go
func (s *Server) copyLeafNodeInfo() *Info { clone := s.leafNodeInfo // Copy the array of urls. if len(s.leafNodeInfo.LeafNodeURLs) > 0 { clone.LeafNodeURLs = append([]string(nil), s.leafNodeInfo.LeafNodeURLs...) } return &clone }
[ "func", "(", "s", "*", "Server", ")", "copyLeafNodeInfo", "(", ")", "*", "Info", "{", "clone", ":=", "s", ".", "leafNodeInfo", "\n", "// Copy the array of urls.", "if", "len", "(", "s", ".", "leafNodeInfo", ".", "LeafNodeURLs", ")", ">", "0", "{", "clone", ".", "LeafNodeURLs", "=", "append", "(", "[", "]", "string", "(", "nil", ")", ",", "s", ".", "leafNodeInfo", ".", "LeafNodeURLs", "...", ")", "\n", "}", "\n", "return", "&", "clone", "\n", "}" ]
// Makes a deep copy of the LeafNode Info structure. // The server lock is held on entry.
[ "Makes", "a", "deep", "copy", "of", "the", "LeafNode", "Info", "structure", ".", "The", "server", "lock", "is", "held", "on", "entry", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/leafnode.go#L348-L355
164,367
nats-io/gnatsd
server/leafnode.go
addLeafNodeURL
func (s *Server) addLeafNodeURL(urlStr string) bool { // Make sure we already don't have it. for _, url := range s.leafNodeInfo.LeafNodeURLs { if url == urlStr { return false } } s.leafNodeInfo.LeafNodeURLs = append(s.leafNodeInfo.LeafNodeURLs, urlStr) s.generateLeafNodeInfoJSON() return true }
go
func (s *Server) addLeafNodeURL(urlStr string) bool { // Make sure we already don't have it. for _, url := range s.leafNodeInfo.LeafNodeURLs { if url == urlStr { return false } } s.leafNodeInfo.LeafNodeURLs = append(s.leafNodeInfo.LeafNodeURLs, urlStr) s.generateLeafNodeInfoJSON() return true }
[ "func", "(", "s", "*", "Server", ")", "addLeafNodeURL", "(", "urlStr", "string", ")", "bool", "{", "// Make sure we already don't have it.", "for", "_", ",", "url", ":=", "range", "s", ".", "leafNodeInfo", ".", "LeafNodeURLs", "{", "if", "url", "==", "urlStr", "{", "return", "false", "\n", "}", "\n", "}", "\n", "s", ".", "leafNodeInfo", ".", "LeafNodeURLs", "=", "append", "(", "s", ".", "leafNodeInfo", ".", "LeafNodeURLs", ",", "urlStr", ")", "\n", "s", ".", "generateLeafNodeInfoJSON", "(", ")", "\n", "return", "true", "\n", "}" ]
// Adds a LeafNode URL that we get when a route connects to the Info structure. // Regenerates the JSON byte array so that it can be sent to LeafNode connections. // Returns a boolean indicating if the URL was added or not. // Server lock is held on entry
[ "Adds", "a", "LeafNode", "URL", "that", "we", "get", "when", "a", "route", "connects", "to", "the", "Info", "structure", ".", "Regenerates", "the", "JSON", "byte", "array", "so", "that", "it", "can", "be", "sent", "to", "LeafNode", "connections", ".", "Returns", "a", "boolean", "indicating", "if", "the", "URL", "was", "added", "or", "not", ".", "Server", "lock", "is", "held", "on", "entry" ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/leafnode.go#L361-L371
164,368
nats-io/gnatsd
server/leafnode.go
removeLeafNodeURL
func (s *Server) removeLeafNodeURL(urlStr string) bool { // Don't need to do this if we are removing the route connection because // we are shuting down... if s.shutdown { return false } removed := false urls := s.leafNodeInfo.LeafNodeURLs for i, url := range urls { if url == urlStr { // If not last, move last into the position we remove. last := len(urls) - 1 if i != last { urls[i] = urls[last] } s.leafNodeInfo.LeafNodeURLs = urls[0:last] removed = true break } } if removed { s.generateLeafNodeInfoJSON() } return removed }
go
func (s *Server) removeLeafNodeURL(urlStr string) bool { // Don't need to do this if we are removing the route connection because // we are shuting down... if s.shutdown { return false } removed := false urls := s.leafNodeInfo.LeafNodeURLs for i, url := range urls { if url == urlStr { // If not last, move last into the position we remove. last := len(urls) - 1 if i != last { urls[i] = urls[last] } s.leafNodeInfo.LeafNodeURLs = urls[0:last] removed = true break } } if removed { s.generateLeafNodeInfoJSON() } return removed }
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// Removes a LeafNode URL of the route that is disconnecting from the Info structure. // Regenerates the JSON byte array so that it can be sent to LeafNode connections. // Returns a boolean indicating if the URL was removed or not. // Server lock is held on entry.
[ "Removes", "a", "LeafNode", "URL", "of", "the", "route", "that", "is", "disconnecting", "from", "the", "Info", "structure", ".", "Regenerates", "the", "JSON", "byte", "array", "so", "that", "it", "can", "be", "sent", "to", "LeafNode", "connections", ".", "Returns", "a", "boolean", "indicating", "if", "the", "URL", "was", "removed", "or", "not", ".", "Server", "lock", "is", "held", "on", "entry", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/leafnode.go#L377-L401
164,369
nats-io/gnatsd
server/leafnode.go
sendAsyncLeafNodeInfo
func (s *Server) sendAsyncLeafNodeInfo() { for _, c := range s.leafs { c.mu.Lock() c.sendInfo(s.leafNodeInfoJSON) c.mu.Unlock() } }
go
func (s *Server) sendAsyncLeafNodeInfo() { for _, c := range s.leafs { c.mu.Lock() c.sendInfo(s.leafNodeInfoJSON) c.mu.Unlock() } }
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// Sends an async INFO protocol so that the connected servers can update // their list of LeafNode urls.
[ "Sends", "an", "async", "INFO", "protocol", "so", "that", "the", "connected", "servers", "can", "update", "their", "list", "of", "LeafNode", "urls", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/leafnode.go#L411-L417
164,370
nats-io/gnatsd
server/leafnode.go
updateLeafNodeURLs
func (c *client) updateLeafNodeURLs(info *Info) { cfg := c.leaf.remote cfg.Lock() defer cfg.Unlock() cfg.urls = make([]*url.URL, 0, 1+len(info.LeafNodeURLs)) // Add the ones we receive in the protocol for _, surl := range info.LeafNodeURLs { url, err := url.Parse("nats-leaf://" + surl) if err != nil { c.Errorf("Error parsing url %q: %v", surl, err) continue } // Do not add if it's the same than the one that // we have configured. if urlsAreEqual(url, cfg.URL) { continue } cfg.urls = append(cfg.urls, url) } // Add the configured one cfg.urls = append(cfg.urls, cfg.URL) }
go
func (c *client) updateLeafNodeURLs(info *Info) { cfg := c.leaf.remote cfg.Lock() defer cfg.Unlock() cfg.urls = make([]*url.URL, 0, 1+len(info.LeafNodeURLs)) // Add the ones we receive in the protocol for _, surl := range info.LeafNodeURLs { url, err := url.Parse("nats-leaf://" + surl) if err != nil { c.Errorf("Error parsing url %q: %v", surl, err) continue } // Do not add if it's the same than the one that // we have configured. if urlsAreEqual(url, cfg.URL) { continue } cfg.urls = append(cfg.urls, url) } // Add the configured one cfg.urls = append(cfg.urls, cfg.URL) }
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// When getting a leaf node INFO protocol, use the provided // array of urls to update the list of possible endpoints.
[ "When", "getting", "a", "leaf", "node", "INFO", "protocol", "use", "the", "provided", "array", "of", "urls", "to", "update", "the", "list", "of", "possible", "endpoints", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/leafnode.go#L648-L670
164,371
nats-io/gnatsd
server/leafnode.go
setLeafNodeInfoHostPortAndIP
func (s *Server) setLeafNodeInfoHostPortAndIP() error { opts := s.getOpts() if opts.LeafNode.Advertise != _EMPTY_ { advHost, advPort, err := parseHostPort(opts.LeafNode.Advertise, opts.LeafNode.Port) if err != nil { return err } s.leafNodeInfo.Host = advHost s.leafNodeInfo.Port = advPort } else { s.leafNodeInfo.Host = opts.LeafNode.Host s.leafNodeInfo.Port = opts.LeafNode.Port // If the host is "0.0.0.0" or "::" we need to resolve to a public IP. // This will return at most 1 IP. hostIsIPAny, ips, err := s.getNonLocalIPsIfHostIsIPAny(s.leafNodeInfo.Host, false) if err != nil { return err } if hostIsIPAny { if len(ips) == 0 { s.Errorf("Could not find any non-local IP for leafnode's listen specification %q", s.leafNodeInfo.Host) } else { // Take the first from the list... s.leafNodeInfo.Host = ips[0] } } } // Use just host:port for the IP s.leafNodeInfo.IP = net.JoinHostPort(s.leafNodeInfo.Host, strconv.Itoa(s.leafNodeInfo.Port)) if opts.LeafNode.Advertise != _EMPTY_ { s.Noticef("Advertise address for leafnode is set to %s", s.leafNodeInfo.IP) } return nil }
go
func (s *Server) setLeafNodeInfoHostPortAndIP() error { opts := s.getOpts() if opts.LeafNode.Advertise != _EMPTY_ { advHost, advPort, err := parseHostPort(opts.LeafNode.Advertise, opts.LeafNode.Port) if err != nil { return err } s.leafNodeInfo.Host = advHost s.leafNodeInfo.Port = advPort } else { s.leafNodeInfo.Host = opts.LeafNode.Host s.leafNodeInfo.Port = opts.LeafNode.Port // If the host is "0.0.0.0" or "::" we need to resolve to a public IP. // This will return at most 1 IP. hostIsIPAny, ips, err := s.getNonLocalIPsIfHostIsIPAny(s.leafNodeInfo.Host, false) if err != nil { return err } if hostIsIPAny { if len(ips) == 0 { s.Errorf("Could not find any non-local IP for leafnode's listen specification %q", s.leafNodeInfo.Host) } else { // Take the first from the list... s.leafNodeInfo.Host = ips[0] } } } // Use just host:port for the IP s.leafNodeInfo.IP = net.JoinHostPort(s.leafNodeInfo.Host, strconv.Itoa(s.leafNodeInfo.Port)) if opts.LeafNode.Advertise != _EMPTY_ { s.Noticef("Advertise address for leafnode is set to %s", s.leafNodeInfo.IP) } return nil }
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// Similar to setInfoHostPortAndGenerateJSON, but for leafNodeInfo.
[ "Similar", "to", "setInfoHostPortAndGenerateJSON", "but", "for", "leafNodeInfo", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/leafnode.go#L673-L707
164,372
nats-io/gnatsd
server/leafnode.go
processLeafNodeConnect
func (c *client) processLeafNodeConnect(s *Server, arg []byte, lang string) error { // Way to detect clients that incorrectly connect to the route listen // port. Client provided "lang" in the CONNECT protocol while LEAFNODEs don't. if lang != "" { c.sendErrAndErr(ErrClientConnectedToLeafNodePort.Error()) c.closeConnection(WrongPort) return ErrClientConnectedToLeafNodePort } // Unmarshal as a leaf node connect protocol proto := &leafConnectInfo{} if err := json.Unmarshal(arg, proto); err != nil { return err } // Reject if this has Gateway which means that it would be from a gateway // connection that incorrectly connects to the leafnode port. if proto.Gateway != "" { errTxt := fmt.Sprintf("Rejecting connection from gateway %q on the leafnode port", proto.Gateway) c.Errorf(errTxt) c.sendErr(errTxt) c.closeConnection(WrongGateway) return ErrWrongGateway } // Leaf Nodes do not do echo or verbose or pedantic. c.opts.Verbose = false c.opts.Echo = false c.opts.Pedantic = false // Create and initialize the smap since we know our bound account now. s.initLeafNodeSmap(c) // We are good to go, send over all the bound account subscriptions. s.startGoRoutine(func() { c.sendAllAccountSubs() s.grWG.Done() }) // Add in the leafnode here since we passed through auth at this point. s.addLeafNodeConnection(c) // Announce the account connect event for a leaf node. // This will no-op as needed. s.sendLeafNodeConnect(c.acc) return nil }
go
func (c *client) processLeafNodeConnect(s *Server, arg []byte, lang string) error { // Way to detect clients that incorrectly connect to the route listen // port. Client provided "lang" in the CONNECT protocol while LEAFNODEs don't. if lang != "" { c.sendErrAndErr(ErrClientConnectedToLeafNodePort.Error()) c.closeConnection(WrongPort) return ErrClientConnectedToLeafNodePort } // Unmarshal as a leaf node connect protocol proto := &leafConnectInfo{} if err := json.Unmarshal(arg, proto); err != nil { return err } // Reject if this has Gateway which means that it would be from a gateway // connection that incorrectly connects to the leafnode port. if proto.Gateway != "" { errTxt := fmt.Sprintf("Rejecting connection from gateway %q on the leafnode port", proto.Gateway) c.Errorf(errTxt) c.sendErr(errTxt) c.closeConnection(WrongGateway) return ErrWrongGateway } // Leaf Nodes do not do echo or verbose or pedantic. c.opts.Verbose = false c.opts.Echo = false c.opts.Pedantic = false // Create and initialize the smap since we know our bound account now. s.initLeafNodeSmap(c) // We are good to go, send over all the bound account subscriptions. s.startGoRoutine(func() { c.sendAllAccountSubs() s.grWG.Done() }) // Add in the leafnode here since we passed through auth at this point. s.addLeafNodeConnection(c) // Announce the account connect event for a leaf node. // This will no-op as needed. s.sendLeafNodeConnect(c.acc) return nil }
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// processLeafNodeConnect will process the inbound connect args. // Once we are here we are bound to an account, so can send any interest that // we would have to the other side.
[ "processLeafNodeConnect", "will", "process", "the", "inbound", "connect", "args", ".", "Once", "we", "are", "here", "we", "are", "bound", "to", "an", "account", "so", "can", "send", "any", "interest", "that", "we", "would", "have", "to", "the", "other", "side", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/leafnode.go#L743-L790
164,373
nats-io/gnatsd
server/leafnode.go
initLeafNodeSmap
func (s *Server) initLeafNodeSmap(c *client) { acc := c.acc if acc == nil { c.Debugf("Leaf node does not have an account bound") return } // Collect all account subs here. _subs := [32]*subscription{} subs := _subs[:0] ims := []string{} acc.mu.RLock() accName := acc.Name acc.sl.All(&subs) // Since leaf nodes only send on interest, if the bound // account has import services we need to send those over. for isubj := range acc.imports.services { ims = append(ims, isubj) } acc.mu.RUnlock() // Now check for gateway interest. Leafnodes will put this into // the proper mode to propagate, but they are not held in the account. gwsa := [16]*client{} gws := gwsa[:0] s.getOutboundGatewayConnections(&gws) for _, cgw := range gws { cgw.mu.Lock() gw := cgw.gw cgw.mu.Unlock() if gw != nil { if ei, _ := gw.outsim.Load(accName); ei != nil { if e := ei.(*outsie); e != nil && e.sl != nil { e.sl.All(&subs) } } } } // Now walk the results and add them to our smap c.mu.Lock() for _, sub := range subs { // We ignore ourselves here. if c != sub.client { c.leaf.smap[keyFromSub(sub)]++ } } // FIXME(dlc) - We need to update appropriately on an account claims update. for _, isubj := range ims { c.leaf.smap[isubj]++ } c.mu.Unlock() }
go
func (s *Server) initLeafNodeSmap(c *client) { acc := c.acc if acc == nil { c.Debugf("Leaf node does not have an account bound") return } // Collect all account subs here. _subs := [32]*subscription{} subs := _subs[:0] ims := []string{} acc.mu.RLock() accName := acc.Name acc.sl.All(&subs) // Since leaf nodes only send on interest, if the bound // account has import services we need to send those over. for isubj := range acc.imports.services { ims = append(ims, isubj) } acc.mu.RUnlock() // Now check for gateway interest. Leafnodes will put this into // the proper mode to propagate, but they are not held in the account. gwsa := [16]*client{} gws := gwsa[:0] s.getOutboundGatewayConnections(&gws) for _, cgw := range gws { cgw.mu.Lock() gw := cgw.gw cgw.mu.Unlock() if gw != nil { if ei, _ := gw.outsim.Load(accName); ei != nil { if e := ei.(*outsie); e != nil && e.sl != nil { e.sl.All(&subs) } } } } // Now walk the results and add them to our smap c.mu.Lock() for _, sub := range subs { // We ignore ourselves here. if c != sub.client { c.leaf.smap[keyFromSub(sub)]++ } } // FIXME(dlc) - We need to update appropriately on an account claims update. for _, isubj := range ims { c.leaf.smap[isubj]++ } c.mu.Unlock() }
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// Snapshot the current subscriptions from the sublist into our smap which // we will keep updated from now on.
[ "Snapshot", "the", "current", "subscriptions", "from", "the", "sublist", "into", "our", "smap", "which", "we", "will", "keep", "updated", "from", "now", "on", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/leafnode.go#L794-L845
164,374
nats-io/gnatsd
server/leafnode.go
updateInterestForAccountOnGateway
func (s *Server) updateInterestForAccountOnGateway(accName string, sub *subscription, delta int32) { acc, err := s.LookupAccount(accName) if acc == nil || err != nil { s.Debugf("No or bad account for %q, failed to update interest from gateway", accName) return } s.updateLeafNodes(acc, sub, delta) }
go
func (s *Server) updateInterestForAccountOnGateway(accName string, sub *subscription, delta int32) { acc, err := s.LookupAccount(accName) if acc == nil || err != nil { s.Debugf("No or bad account for %q, failed to update interest from gateway", accName) return } s.updateLeafNodes(acc, sub, delta) }
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// updateInterestForAccountOnGateway called from gateway code when processing RS+ and RS-.
[ "updateInterestForAccountOnGateway", "called", "from", "gateway", "code", "when", "processing", "RS", "+", "and", "RS", "-", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/leafnode.go#L848-L855
164,375
nats-io/gnatsd
server/leafnode.go
updateLeafNodes
func (s *Server) updateLeafNodes(acc *Account, sub *subscription, delta int32) { if acc == nil || sub == nil { return } _l := [256]*client{} leafs := _l[:0] // Grab all leaf nodes. Ignore leafnode if sub's client is a leafnode and matches. acc.mu.RLock() for _, ln := range acc.clients { if ln.kind == LEAF && ln != sub.client { leafs = append(leafs, ln) } } acc.mu.RUnlock() for _, ln := range leafs { ln.updateSmap(sub, delta) } }
go
func (s *Server) updateLeafNodes(acc *Account, sub *subscription, delta int32) { if acc == nil || sub == nil { return } _l := [256]*client{} leafs := _l[:0] // Grab all leaf nodes. Ignore leafnode if sub's client is a leafnode and matches. acc.mu.RLock() for _, ln := range acc.clients { if ln.kind == LEAF && ln != sub.client { leafs = append(leafs, ln) } } acc.mu.RUnlock() for _, ln := range leafs { ln.updateSmap(sub, delta) } }
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// updateLeafNodes will make sure to update the smap for the subscription. Will // also forward to all leaf nodes as needed.
[ "updateLeafNodes", "will", "make", "sure", "to", "update", "the", "smap", "for", "the", "subscription", ".", "Will", "also", "forward", "to", "all", "leaf", "nodes", "as", "needed", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/leafnode.go#L859-L879
164,376
nats-io/gnatsd
server/leafnode.go
updateSmap
func (c *client) updateSmap(sub *subscription, delta int32) { key := keyFromSub(sub) c.mu.Lock() n := c.leaf.smap[key] // We will update if its a queue, if count is zero (or negative), or we were 0 and are N > 0. update := sub.queue != nil || n == 0 || n+delta <= 0 n += delta if n > 0 { c.leaf.smap[key] = n } else { delete(c.leaf.smap, key) } if update { c.sendLeafNodeSubUpdate(key, n) } c.mu.Unlock() }
go
func (c *client) updateSmap(sub *subscription, delta int32) { key := keyFromSub(sub) c.mu.Lock() n := c.leaf.smap[key] // We will update if its a queue, if count is zero (or negative), or we were 0 and are N > 0. update := sub.queue != nil || n == 0 || n+delta <= 0 n += delta if n > 0 { c.leaf.smap[key] = n } else { delete(c.leaf.smap, key) } if update { c.sendLeafNodeSubUpdate(key, n) } c.mu.Unlock() }
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// This will make an update to our internal smap and determine if we should send out // and interest update to the remote side.
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7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/leafnode.go#L883-L900
164,377
nats-io/gnatsd
server/leafnode.go
sendLeafNodeSubUpdate
func (c *client) sendLeafNodeSubUpdate(key string, n int32) { _b := [64]byte{} b := bytes.NewBuffer(_b[:0]) c.writeLeafSub(b, key, n) c.sendProto(b.Bytes(), false) }
go
func (c *client) sendLeafNodeSubUpdate(key string, n int32) { _b := [64]byte{} b := bytes.NewBuffer(_b[:0]) c.writeLeafSub(b, key, n) c.sendProto(b.Bytes(), false) }
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// Send the subscription interest change to the other side. // Lock should be held.
[ "Send", "the", "subscription", "interest", "change", "to", "the", "other", "side", ".", "Lock", "should", "be", "held", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/leafnode.go#L904-L909
164,378
nats-io/gnatsd
server/leafnode.go
keyFromSub
func keyFromSub(sub *subscription) string { var _rkey [1024]byte var key []byte if sub.queue != nil { // Just make the key subject spc group, e.g. 'foo bar' key = _rkey[:0] key = append(key, sub.subject...) key = append(key, byte(' ')) key = append(key, sub.queue...) } else { key = sub.subject } return string(key) }
go
func keyFromSub(sub *subscription) string { var _rkey [1024]byte var key []byte if sub.queue != nil { // Just make the key subject spc group, e.g. 'foo bar' key = _rkey[:0] key = append(key, sub.subject...) key = append(key, byte(' ')) key = append(key, sub.queue...) } else { key = sub.subject } return string(key) }
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// Helper function to build the key.
[ "Helper", "function", "to", "build", "the", "key", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/leafnode.go#L912-L926
164,379
nats-io/gnatsd
server/leafnode.go
sendAllAccountSubs
func (c *client) sendAllAccountSubs() { // Hold all at once for now. var b bytes.Buffer c.mu.Lock() for key, n := range c.leaf.smap { c.writeLeafSub(&b, key, n) } // We will make sure we don't overflow here due to an max_pending. chunks := protoChunks(b.Bytes(), MAX_PAYLOAD_SIZE) for _, chunk := range chunks { c.queueOutbound(chunk) c.flushOutbound() } c.mu.Unlock() }
go
func (c *client) sendAllAccountSubs() { // Hold all at once for now. var b bytes.Buffer c.mu.Lock() for key, n := range c.leaf.smap { c.writeLeafSub(&b, key, n) } // We will make sure we don't overflow here due to an max_pending. chunks := protoChunks(b.Bytes(), MAX_PAYLOAD_SIZE) for _, chunk := range chunks { c.queueOutbound(chunk) c.flushOutbound() } c.mu.Unlock() }
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// Send all subscriptions for this account that include local // and all subscriptions besides our own.
[ "Send", "all", "subscriptions", "for", "this", "account", "that", "include", "local", "and", "all", "subscriptions", "besides", "our", "own", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/leafnode.go#L930-L946
164,380
nats-io/gnatsd
server/leafnode.go
processLeafSub
func (c *client) processLeafSub(argo []byte) (err error) { c.traceInOp("LS+", argo) // Indicate activity. c.in.subs++ srv := c.srv if srv == nil { return nil } // Copy so we do not reference a potentially large buffer arg := make([]byte, len(argo)) copy(arg, argo) args := splitArg(arg) sub := &subscription{client: c} switch len(args) { case 1: sub.queue = nil case 3: sub.queue = args[1] sub.qw = int32(parseSize(args[2])) default: return fmt.Errorf("processLeafSub Parse Error: '%s'", arg) } sub.subject = args[0] c.mu.Lock() if c.nc == nil { c.mu.Unlock() return nil } // Check permissions if applicable. if !c.canExport(string(sub.subject)) { c.mu.Unlock() c.Debugf("Can not export %q, ignoring remote subscription request", sub.subject) return nil } // Check if we have a maximum on the number of subscriptions. if c.subsAtLimit() { c.mu.Unlock() c.maxSubsExceeded() return nil } // Like Routes, we store local subs by account and subject and optionally queue name. // If we have a queue it will have a trailing weight which we do not want. if sub.queue != nil { sub.sid = arg[:len(arg)-len(args[2])-1] } else { sub.sid = arg } acc := c.acc key := string(sub.sid) osub := c.subs[key] updateGWs := false if osub == nil { c.subs[key] = sub // Now place into the account sl. if err = acc.sl.Insert(sub); err != nil { delete(c.subs, key) c.mu.Unlock() c.Errorf("Could not insert subscription: %v", err) c.sendErr("Invalid Subscription") return nil } updateGWs = srv.gateway.enabled } else if sub.queue != nil { // For a queue we need to update the weight. atomic.StoreInt32(&osub.qw, sub.qw) acc.sl.UpdateRemoteQSub(osub) } c.mu.Unlock() // Treat leaf node subscriptions similar to a client subscription, meaning we // send them to both routes and gateways and other leaf nodes. We also do // the shadow subscriptions. if err := c.addShadowSubscriptions(acc, sub); err != nil { c.Errorf(err.Error()) } // If we are routing add to the route map for the associated account. srv.updateRouteSubscriptionMap(acc, sub, 1) if updateGWs { srv.gatewayUpdateSubInterest(acc.Name, sub, 1) } // Now check on leafnode updates for other leaf nodes. srv.updateLeafNodes(acc, sub, 1) return nil }
go
func (c *client) processLeafSub(argo []byte) (err error) { c.traceInOp("LS+", argo) // Indicate activity. c.in.subs++ srv := c.srv if srv == nil { return nil } // Copy so we do not reference a potentially large buffer arg := make([]byte, len(argo)) copy(arg, argo) args := splitArg(arg) sub := &subscription{client: c} switch len(args) { case 1: sub.queue = nil case 3: sub.queue = args[1] sub.qw = int32(parseSize(args[2])) default: return fmt.Errorf("processLeafSub Parse Error: '%s'", arg) } sub.subject = args[0] c.mu.Lock() if c.nc == nil { c.mu.Unlock() return nil } // Check permissions if applicable. if !c.canExport(string(sub.subject)) { c.mu.Unlock() c.Debugf("Can not export %q, ignoring remote subscription request", sub.subject) return nil } // Check if we have a maximum on the number of subscriptions. if c.subsAtLimit() { c.mu.Unlock() c.maxSubsExceeded() return nil } // Like Routes, we store local subs by account and subject and optionally queue name. // If we have a queue it will have a trailing weight which we do not want. if sub.queue != nil { sub.sid = arg[:len(arg)-len(args[2])-1] } else { sub.sid = arg } acc := c.acc key := string(sub.sid) osub := c.subs[key] updateGWs := false if osub == nil { c.subs[key] = sub // Now place into the account sl. if err = acc.sl.Insert(sub); err != nil { delete(c.subs, key) c.mu.Unlock() c.Errorf("Could not insert subscription: %v", err) c.sendErr("Invalid Subscription") return nil } updateGWs = srv.gateway.enabled } else if sub.queue != nil { // For a queue we need to update the weight. atomic.StoreInt32(&osub.qw, sub.qw) acc.sl.UpdateRemoteQSub(osub) } c.mu.Unlock() // Treat leaf node subscriptions similar to a client subscription, meaning we // send them to both routes and gateways and other leaf nodes. We also do // the shadow subscriptions. if err := c.addShadowSubscriptions(acc, sub); err != nil { c.Errorf(err.Error()) } // If we are routing add to the route map for the associated account. srv.updateRouteSubscriptionMap(acc, sub, 1) if updateGWs { srv.gatewayUpdateSubInterest(acc.Name, sub, 1) } // Now check on leafnode updates for other leaf nodes. srv.updateLeafNodes(acc, sub, 1) return nil }
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// processLeafSub will process an inbound sub request for the remote leaf node.
[ "processLeafSub", "will", "process", "an", "inbound", "sub", "request", "for", "the", "remote", "leaf", "node", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/leafnode.go#L981-L1075
164,381
nats-io/gnatsd
server/leafnode.go
processLeafUnsub
func (c *client) processLeafUnsub(arg []byte) error { c.traceInOp("LS-", arg) // Indicate any activity, so pub and sub or unsubs. c.in.subs++ acc := c.acc srv := c.srv c.mu.Lock() if c.nc == nil { c.mu.Unlock() return nil } updateGWs := false // We store local subs by account and subject and optionally queue name. // LS- will have the arg exactly as the key. sub, ok := c.subs[string(arg)] c.mu.Unlock() if ok { c.unsubscribe(acc, sub, true) updateGWs = srv.gateway.enabled } // If we are routing subtract from the route map for the associated account. srv.updateRouteSubscriptionMap(acc, sub, -1) // Gateways if updateGWs { srv.gatewayUpdateSubInterest(acc.Name, sub, -1) } // Now check on leafnode updates for other leaf nodes. srv.updateLeafNodes(acc, sub, -1) return nil }
go
func (c *client) processLeafUnsub(arg []byte) error { c.traceInOp("LS-", arg) // Indicate any activity, so pub and sub or unsubs. c.in.subs++ acc := c.acc srv := c.srv c.mu.Lock() if c.nc == nil { c.mu.Unlock() return nil } updateGWs := false // We store local subs by account and subject and optionally queue name. // LS- will have the arg exactly as the key. sub, ok := c.subs[string(arg)] c.mu.Unlock() if ok { c.unsubscribe(acc, sub, true) updateGWs = srv.gateway.enabled } // If we are routing subtract from the route map for the associated account. srv.updateRouteSubscriptionMap(acc, sub, -1) // Gateways if updateGWs { srv.gatewayUpdateSubInterest(acc.Name, sub, -1) } // Now check on leafnode updates for other leaf nodes. srv.updateLeafNodes(acc, sub, -1) return nil }
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// processLeafUnsub will process an inbound unsub request for the remote leaf node.
[ "processLeafUnsub", "will", "process", "an", "inbound", "unsub", "request", "for", "the", "remote", "leaf", "node", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/leafnode.go#L1078-L1113
164,382
nats-io/gnatsd
server/leafnode.go
processInboundLeafMsg
func (c *client) processInboundLeafMsg(msg []byte) { // Update statistics c.in.msgs++ // The msg includes the CR_LF, so pull back out for accounting. c.in.bytes += int32(len(msg) - LEN_CR_LF) if c.trace { c.traceMsg(msg) } // Check pub permissions if c.perms != nil && (c.perms.pub.allow != nil || c.perms.pub.deny != nil) && !c.pubAllowed(string(c.pa.subject)) { c.pubPermissionViolation(c.pa.subject) return } srv := c.srv acc := c.acc // Mostly under testing scenarios. if srv == nil || acc == nil { return } // Match the subscriptions. We will use our own L1 map if // it's still valid, avoiding contention on the shared sublist. var r *SublistResult var ok bool genid := atomic.LoadUint64(&c.acc.sl.genid) if genid == c.in.genid && c.in.results != nil { r, ok = c.in.results[string(c.pa.subject)] } else { // Reset our L1 completely. c.in.results = make(map[string]*SublistResult) c.in.genid = genid } // Go back to the sublist data structure. if !ok { r = c.acc.sl.Match(string(c.pa.subject)) c.in.results[string(c.pa.subject)] = r // Prune the results cache. Keeps us from unbounded growth. Random delete. if len(c.in.results) > maxResultCacheSize { n := 0 for subject := range c.in.results { delete(c.in.results, subject) if n++; n > pruneSize { break } } } } // Check to see if we need to map/route to another account. if acc.imports.services != nil { c.checkForImportServices(acc, msg) } // Collect queue names if needed. var qnames [][]byte // Check for no interest, short circuit if so. // This is the fanout scale. if len(r.psubs)+len(r.qsubs) > 0 { flag := pmrNoFlag // If we have queue subs in this cluster, then if we run in gateway // mode and the remote gateways have queue subs, then we need to // collect the queue groups this message was sent to so that we // exclude them when sending to gateways. if len(r.qsubs) > 0 && c.srv.gateway.enabled && atomic.LoadInt64(&c.srv.gateway.totalQSubs) > 0 { flag = pmrCollectQueueNames } qnames = c.processMsgResults(acc, r, msg, c.pa.subject, c.pa.reply, flag) } // Now deal with gateways if c.srv.gateway.enabled { c.sendMsgToGateways(c.acc, msg, c.pa.subject, c.pa.reply, qnames) } }
go
func (c *client) processInboundLeafMsg(msg []byte) { // Update statistics c.in.msgs++ // The msg includes the CR_LF, so pull back out for accounting. c.in.bytes += int32(len(msg) - LEN_CR_LF) if c.trace { c.traceMsg(msg) } // Check pub permissions if c.perms != nil && (c.perms.pub.allow != nil || c.perms.pub.deny != nil) && !c.pubAllowed(string(c.pa.subject)) { c.pubPermissionViolation(c.pa.subject) return } srv := c.srv acc := c.acc // Mostly under testing scenarios. if srv == nil || acc == nil { return } // Match the subscriptions. We will use our own L1 map if // it's still valid, avoiding contention on the shared sublist. var r *SublistResult var ok bool genid := atomic.LoadUint64(&c.acc.sl.genid) if genid == c.in.genid && c.in.results != nil { r, ok = c.in.results[string(c.pa.subject)] } else { // Reset our L1 completely. c.in.results = make(map[string]*SublistResult) c.in.genid = genid } // Go back to the sublist data structure. if !ok { r = c.acc.sl.Match(string(c.pa.subject)) c.in.results[string(c.pa.subject)] = r // Prune the results cache. Keeps us from unbounded growth. Random delete. if len(c.in.results) > maxResultCacheSize { n := 0 for subject := range c.in.results { delete(c.in.results, subject) if n++; n > pruneSize { break } } } } // Check to see if we need to map/route to another account. if acc.imports.services != nil { c.checkForImportServices(acc, msg) } // Collect queue names if needed. var qnames [][]byte // Check for no interest, short circuit if so. // This is the fanout scale. if len(r.psubs)+len(r.qsubs) > 0 { flag := pmrNoFlag // If we have queue subs in this cluster, then if we run in gateway // mode and the remote gateways have queue subs, then we need to // collect the queue groups this message was sent to so that we // exclude them when sending to gateways. if len(r.qsubs) > 0 && c.srv.gateway.enabled && atomic.LoadInt64(&c.srv.gateway.totalQSubs) > 0 { flag = pmrCollectQueueNames } qnames = c.processMsgResults(acc, r, msg, c.pa.subject, c.pa.reply, flag) } // Now deal with gateways if c.srv.gateway.enabled { c.sendMsgToGateways(c.acc, msg, c.pa.subject, c.pa.reply, qnames) } }
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// processInboundLeafMsg is called to process an inbound msg from a leaf node.
[ "processInboundLeafMsg", "is", "called", "to", "process", "an", "inbound", "msg", "from", "a", "leaf", "node", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/leafnode.go#L1190-L1271
164,383
nats-io/gnatsd
server/leafnode.go
protoChunks
func protoChunks(b []byte, csz int) [][]byte { if b == nil { return nil } if len(b) <= csz { return [][]byte{b} } var ( chunks [][]byte start int ) for i := csz; i < len(b); { // Walk forward to find a CR_LF delim := bytes.Index(b[i:], []byte(CR_LF)) if delim < 0 { chunks = append(chunks, b[start:]) break } end := delim + LEN_CR_LF + i chunks = append(chunks, b[start:end]) start = end i = end + csz } return chunks }
go
func protoChunks(b []byte, csz int) [][]byte { if b == nil { return nil } if len(b) <= csz { return [][]byte{b} } var ( chunks [][]byte start int ) for i := csz; i < len(b); { // Walk forward to find a CR_LF delim := bytes.Index(b[i:], []byte(CR_LF)) if delim < 0 { chunks = append(chunks, b[start:]) break } end := delim + LEN_CR_LF + i chunks = append(chunks, b[start:end]) start = end i = end + csz } return chunks }
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// This functional will take a larger buffer and break it into // chunks that are protocol correct. Reason being is that we are // doing this in the first place to get things in smaller sizes // out the door but we may allow someone to get in between us as // we do. // NOTE - currently this does not process MSG protos.
[ "This", "functional", "will", "take", "a", "larger", "buffer", "and", "break", "it", "into", "chunks", "that", "are", "protocol", "correct", ".", "Reason", "being", "is", "that", "we", "are", "doing", "this", "in", "the", "first", "place", "to", "get", "things", "in", "smaller", "sizes", "out", "the", "door", "but", "we", "may", "allow", "someone", "to", "get", "in", "between", "us", "as", "we", "do", ".", "NOTE", "-", "currently", "this", "does", "not", "process", "MSG", "protos", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/leafnode.go#L1279-L1303
164,384
nats-io/gnatsd
server/auth.go
clone
func (u *User) clone() *User { if u == nil { return nil } clone := &User{} *clone = *u clone.Permissions = u.Permissions.clone() return clone }
go
func (u *User) clone() *User { if u == nil { return nil } clone := &User{} *clone = *u clone.Permissions = u.Permissions.clone() return clone }
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// clone performs a deep copy of the User struct, returning a new clone with // all values copied.
[ "clone", "performs", "a", "deep", "copy", "of", "the", "User", "struct", "returning", "a", "new", "clone", "with", "all", "values", "copied", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/auth.go#L63-L71
164,385
nats-io/gnatsd
server/auth.go
clone
func (n *NkeyUser) clone() *NkeyUser { if n == nil { return nil } clone := &NkeyUser{} *clone = *n clone.Permissions = n.Permissions.clone() return clone }
go
func (n *NkeyUser) clone() *NkeyUser { if n == nil { return nil } clone := &NkeyUser{} *clone = *n clone.Permissions = n.Permissions.clone() return clone }
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// clone performs a deep copy of the NkeyUser struct, returning a new clone with // all values copied.
[ "clone", "performs", "a", "deep", "copy", "of", "the", "NkeyUser", "struct", "returning", "a", "new", "clone", "with", "all", "values", "copied", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/auth.go#L75-L83
164,386
nats-io/gnatsd
server/auth.go
clone
func (p *SubjectPermission) clone() *SubjectPermission { if p == nil { return nil } clone := &SubjectPermission{} if p.Allow != nil { clone.Allow = make([]string, len(p.Allow)) copy(clone.Allow, p.Allow) } if p.Deny != nil { clone.Deny = make([]string, len(p.Deny)) copy(clone.Deny, p.Deny) } return clone }
go
func (p *SubjectPermission) clone() *SubjectPermission { if p == nil { return nil } clone := &SubjectPermission{} if p.Allow != nil { clone.Allow = make([]string, len(p.Allow)) copy(clone.Allow, p.Allow) } if p.Deny != nil { clone.Deny = make([]string, len(p.Deny)) copy(clone.Deny, p.Deny) } return clone }
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// clone will clone an individual subject permission.
[ "clone", "will", "clone", "an", "individual", "subject", "permission", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/auth.go#L108-L122
164,387
nats-io/gnatsd
server/auth.go
clone
func (p *Permissions) clone() *Permissions { if p == nil { return nil } clone := &Permissions{} if p.Publish != nil { clone.Publish = p.Publish.clone() } if p.Subscribe != nil { clone.Subscribe = p.Subscribe.clone() } return clone }
go
func (p *Permissions) clone() *Permissions { if p == nil { return nil } clone := &Permissions{} if p.Publish != nil { clone.Publish = p.Publish.clone() } if p.Subscribe != nil { clone.Subscribe = p.Subscribe.clone() } return clone }
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// clone performs a deep copy of the Permissions struct, returning a new clone // with all values copied.
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7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/auth.go#L126-L138
164,388
nats-io/gnatsd
server/auth.go
checkAuthforWarnings
func (s *Server) checkAuthforWarnings() { warn := false if s.opts.Password != "" && !isBcrypt(s.opts.Password) { warn = true } for _, u := range s.users { // Skip warn if using TLS certs based auth // unless a password has been left in the config. if u.Password == "" && s.opts.TLSMap { continue } if !isBcrypt(u.Password) { warn = true break } } if warn { // Warning about using plaintext passwords. s.Warnf("Plaintext passwords detected, use nkeys or bcrypt.") } }
go
func (s *Server) checkAuthforWarnings() { warn := false if s.opts.Password != "" && !isBcrypt(s.opts.Password) { warn = true } for _, u := range s.users { // Skip warn if using TLS certs based auth // unless a password has been left in the config. if u.Password == "" && s.opts.TLSMap { continue } if !isBcrypt(u.Password) { warn = true break } } if warn { // Warning about using plaintext passwords. s.Warnf("Plaintext passwords detected, use nkeys or bcrypt.") } }
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// checkAuthforWarnings will look for insecure settings and log concerns. // Lock is assumed held.
[ "checkAuthforWarnings", "will", "look", "for", "insecure", "settings", "and", "log", "concerns", ".", "Lock", "is", "assumed", "held", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/auth.go#L142-L163
164,389
nats-io/gnatsd
server/auth.go
assignGlobalAccountToOrphanUsers
func (s *Server) assignGlobalAccountToOrphanUsers() { for _, u := range s.users { if u.Account == nil { u.Account = s.gacc } } for _, u := range s.nkeys { if u.Account == nil { u.Account = s.gacc } } }
go
func (s *Server) assignGlobalAccountToOrphanUsers() { for _, u := range s.users { if u.Account == nil { u.Account = s.gacc } } for _, u := range s.nkeys { if u.Account == nil { u.Account = s.gacc } } }
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// If opts.Users or opts.Nkeys have definitions without an account // defined assign them to the default global account. // Lock should be held.
[ "If", "opts", ".", "Users", "or", "opts", ".", "Nkeys", "have", "definitions", "without", "an", "account", "defined", "assign", "them", "to", "the", "default", "global", "account", ".", "Lock", "should", "be", "held", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/auth.go#L168-L179
164,390
nats-io/gnatsd
server/auth.go
configureAuthorization
func (s *Server) configureAuthorization() { if s.opts == nil { return } // Snapshot server options. opts := s.getOpts() // Check for multiple users first // This just checks and sets up the user map if we have multiple users. if opts.CustomClientAuthentication != nil { s.info.AuthRequired = true } else if len(s.trustedKeys) > 0 { s.info.AuthRequired = true } else if opts.Nkeys != nil || opts.Users != nil { // Support both at the same time. if opts.Nkeys != nil { s.nkeys = make(map[string]*NkeyUser) for _, u := range opts.Nkeys { copy := u.clone() if u.Account != nil { if v, ok := s.accounts.Load(u.Account.Name); ok { copy.Account = v.(*Account) } } s.nkeys[u.Nkey] = copy } } if opts.Users != nil { s.users = make(map[string]*User) for _, u := range opts.Users { copy := u.clone() if u.Account != nil { if v, ok := s.accounts.Load(u.Account.Name); ok { copy.Account = v.(*Account) } } s.users[u.Username] = copy } } s.assignGlobalAccountToOrphanUsers() s.info.AuthRequired = true } else if opts.Username != "" || opts.Authorization != "" { s.info.AuthRequired = true } else { s.users = nil s.info.AuthRequired = false } }
go
func (s *Server) configureAuthorization() { if s.opts == nil { return } // Snapshot server options. opts := s.getOpts() // Check for multiple users first // This just checks and sets up the user map if we have multiple users. if opts.CustomClientAuthentication != nil { s.info.AuthRequired = true } else if len(s.trustedKeys) > 0 { s.info.AuthRequired = true } else if opts.Nkeys != nil || opts.Users != nil { // Support both at the same time. if opts.Nkeys != nil { s.nkeys = make(map[string]*NkeyUser) for _, u := range opts.Nkeys { copy := u.clone() if u.Account != nil { if v, ok := s.accounts.Load(u.Account.Name); ok { copy.Account = v.(*Account) } } s.nkeys[u.Nkey] = copy } } if opts.Users != nil { s.users = make(map[string]*User) for _, u := range opts.Users { copy := u.clone() if u.Account != nil { if v, ok := s.accounts.Load(u.Account.Name); ok { copy.Account = v.(*Account) } } s.users[u.Username] = copy } } s.assignGlobalAccountToOrphanUsers() s.info.AuthRequired = true } else if opts.Username != "" || opts.Authorization != "" { s.info.AuthRequired = true } else { s.users = nil s.info.AuthRequired = false } }
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// configureAuthorization will do any setup needed for authorization. // Lock is assumed held.
[ "configureAuthorization", "will", "do", "any", "setup", "needed", "for", "authorization", ".", "Lock", "is", "assumed", "held", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/auth.go#L183-L231
164,391
nats-io/gnatsd
server/auth.go
checkAuthentication
func (s *Server) checkAuthentication(c *client) bool { switch c.kind { case CLIENT: return s.isClientAuthorized(c) case ROUTER: return s.isRouterAuthorized(c) case GATEWAY: return s.isGatewayAuthorized(c) case LEAF: return s.isLeafNodeAuthorized(c) default: return false } }
go
func (s *Server) checkAuthentication(c *client) bool { switch c.kind { case CLIENT: return s.isClientAuthorized(c) case ROUTER: return s.isRouterAuthorized(c) case GATEWAY: return s.isGatewayAuthorized(c) case LEAF: return s.isLeafNodeAuthorized(c) default: return false } }
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// checkAuthentication will check based on client type and // return boolean indicating if client is authorized.
[ "checkAuthentication", "will", "check", "based", "on", "client", "type", "and", "return", "boolean", "indicating", "if", "client", "is", "authorized", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/auth.go#L235-L248
164,392
nats-io/gnatsd
server/auth.go
isLeafNodeAuthorized
func (s *Server) isLeafNodeAuthorized(c *client) bool { // FIXME(dlc) - This is duplicated from client auth, should be able to combine // and not fail so bad on DRY. // Grab under lock but process after. var ( juc *jwt.UserClaims acc *Account err error ) s.mu.Lock() // Check if we have trustedKeys defined in the server. If so we require a user jwt. if s.trustedKeys != nil { if c.opts.JWT == "" { s.mu.Unlock() c.Debugf("Authentication requires a user JWT") return false } // So we have a valid user jwt here. juc, err = jwt.DecodeUserClaims(c.opts.JWT) if err != nil { s.mu.Unlock() c.Debugf("User JWT not valid: %v", err) return false } vr := jwt.CreateValidationResults() juc.Validate(vr) if vr.IsBlocking(true) { s.mu.Unlock() c.Debugf("User JWT no longer valid: %+v", vr) return false } } s.mu.Unlock() // If we have a jwt and a userClaim, make sure we have the Account, etc associated. // We need to look up the account. This will use an account resolver if one is present. if juc != nil { if acc, _ = s.LookupAccount(juc.Issuer); acc == nil { c.Debugf("Account JWT can not be found") return false } // FIXME(dlc) - Add in check for account allowed to do leaf nodes? // Bool or active count like client? if !s.isTrustedIssuer(acc.Issuer) { c.Debugf("Account JWT not signed by trusted operator") return false } if acc.IsExpired() { c.Debugf("Account JWT has expired") return false } // Verify the signature against the nonce. if c.opts.Sig == "" { c.Debugf("Signature missing") return false } sig, err := base64.RawURLEncoding.DecodeString(c.opts.Sig) if err != nil { // Allow fallback to normal base64. sig, err = base64.StdEncoding.DecodeString(c.opts.Sig) if err != nil { c.Debugf("Signature not valid base64") return false } } pub, err := nkeys.FromPublicKey(juc.Subject) if err != nil { c.Debugf("User nkey not valid: %v", err) return false } if err := pub.Verify(c.nonce, sig); err != nil { c.Debugf("Signature not verified") return false } nkey := buildInternalNkeyUser(juc, acc) if err := c.RegisterNkeyUser(nkey); err != nil { return false } // Check if we need to set an auth timer if the user jwt expires. c.checkExpiration(juc.Claims()) return true } // For now this means we are binding the leafnode to the global account. c.registerWithAccount(s.globalAccount()) // Snapshot server options. opts := s.getOpts() if opts.LeafNode.Username == "" { return true } if opts.LeafNode.Username != c.opts.Username { return false } return comparePasswords(opts.LeafNode.Password, c.opts.Password) }
go
func (s *Server) isLeafNodeAuthorized(c *client) bool { // FIXME(dlc) - This is duplicated from client auth, should be able to combine // and not fail so bad on DRY. // Grab under lock but process after. var ( juc *jwt.UserClaims acc *Account err error ) s.mu.Lock() // Check if we have trustedKeys defined in the server. If so we require a user jwt. if s.trustedKeys != nil { if c.opts.JWT == "" { s.mu.Unlock() c.Debugf("Authentication requires a user JWT") return false } // So we have a valid user jwt here. juc, err = jwt.DecodeUserClaims(c.opts.JWT) if err != nil { s.mu.Unlock() c.Debugf("User JWT not valid: %v", err) return false } vr := jwt.CreateValidationResults() juc.Validate(vr) if vr.IsBlocking(true) { s.mu.Unlock() c.Debugf("User JWT no longer valid: %+v", vr) return false } } s.mu.Unlock() // If we have a jwt and a userClaim, make sure we have the Account, etc associated. // We need to look up the account. This will use an account resolver if one is present. if juc != nil { if acc, _ = s.LookupAccount(juc.Issuer); acc == nil { c.Debugf("Account JWT can not be found") return false } // FIXME(dlc) - Add in check for account allowed to do leaf nodes? // Bool or active count like client? if !s.isTrustedIssuer(acc.Issuer) { c.Debugf("Account JWT not signed by trusted operator") return false } if acc.IsExpired() { c.Debugf("Account JWT has expired") return false } // Verify the signature against the nonce. if c.opts.Sig == "" { c.Debugf("Signature missing") return false } sig, err := base64.RawURLEncoding.DecodeString(c.opts.Sig) if err != nil { // Allow fallback to normal base64. sig, err = base64.StdEncoding.DecodeString(c.opts.Sig) if err != nil { c.Debugf("Signature not valid base64") return false } } pub, err := nkeys.FromPublicKey(juc.Subject) if err != nil { c.Debugf("User nkey not valid: %v", err) return false } if err := pub.Verify(c.nonce, sig); err != nil { c.Debugf("Signature not verified") return false } nkey := buildInternalNkeyUser(juc, acc) if err := c.RegisterNkeyUser(nkey); err != nil { return false } // Check if we need to set an auth timer if the user jwt expires. c.checkExpiration(juc.Claims()) return true } // For now this means we are binding the leafnode to the global account. c.registerWithAccount(s.globalAccount()) // Snapshot server options. opts := s.getOpts() if opts.LeafNode.Username == "" { return true } if opts.LeafNode.Username != c.opts.Username { return false } return comparePasswords(opts.LeafNode.Password, c.opts.Password) }
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// isLeafNodeAuthorized will check for auth for an inbound leaf node connection.
[ "isLeafNodeAuthorized", "will", "check", "for", "auth", "for", "an", "inbound", "leaf", "node", "connection", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/auth.go#L558-L659
164,393
nats-io/gnatsd
server/log.go
ConfigureLogger
func (s *Server) ConfigureLogger() { var ( log Logger // Snapshot server options. opts = s.getOpts() ) if opts.NoLog { return } syslog := opts.Syslog if isWindowsService() && opts.LogFile == "" { // Enable syslog if no log file is specified and we're running as a // Windows service so that logs are written to the Windows event log. syslog = true } if opts.LogFile != "" { log = srvlog.NewFileLogger(opts.LogFile, opts.Logtime, opts.Debug, opts.Trace, true) } else if opts.RemoteSyslog != "" { log = srvlog.NewRemoteSysLogger(opts.RemoteSyslog, opts.Debug, opts.Trace) } else if syslog { log = srvlog.NewSysLogger(opts.Debug, opts.Trace) } else { colors := true // Check to see if stderr is being redirected and if so turn off color // Also turn off colors if we're running on Windows where os.Stderr.Stat() returns an invalid handle-error stat, err := os.Stderr.Stat() if err != nil || (stat.Mode()&os.ModeCharDevice) == 0 { colors = false } log = srvlog.NewStdLogger(opts.Logtime, opts.Debug, opts.Trace, colors, true) } s.SetLogger(log, opts.Debug, opts.Trace) }
go
func (s *Server) ConfigureLogger() { var ( log Logger // Snapshot server options. opts = s.getOpts() ) if opts.NoLog { return } syslog := opts.Syslog if isWindowsService() && opts.LogFile == "" { // Enable syslog if no log file is specified and we're running as a // Windows service so that logs are written to the Windows event log. syslog = true } if opts.LogFile != "" { log = srvlog.NewFileLogger(opts.LogFile, opts.Logtime, opts.Debug, opts.Trace, true) } else if opts.RemoteSyslog != "" { log = srvlog.NewRemoteSysLogger(opts.RemoteSyslog, opts.Debug, opts.Trace) } else if syslog { log = srvlog.NewSysLogger(opts.Debug, opts.Trace) } else { colors := true // Check to see if stderr is being redirected and if so turn off color // Also turn off colors if we're running on Windows where os.Stderr.Stat() returns an invalid handle-error stat, err := os.Stderr.Stat() if err != nil || (stat.Mode()&os.ModeCharDevice) == 0 { colors = false } log = srvlog.NewStdLogger(opts.Logtime, opts.Debug, opts.Trace, colors, true) } s.SetLogger(log, opts.Debug, opts.Trace) }
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// ConfigureLogger configures and sets the logger for the server.
[ "ConfigureLogger", "configures", "and", "sets", "the", "logger", "for", "the", "server", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/log.go#L47-L84
164,394
nats-io/gnatsd
server/log.go
SetLogger
func (s *Server) SetLogger(logger Logger, debugFlag, traceFlag bool) { if debugFlag { atomic.StoreInt32(&s.logging.debug, 1) } else { atomic.StoreInt32(&s.logging.debug, 0) } if traceFlag { atomic.StoreInt32(&s.logging.trace, 1) } else { atomic.StoreInt32(&s.logging.trace, 0) } s.logging.Lock() if s.logging.logger != nil { // Check to see if the logger implements io.Closer. This could be a // logger from another process embedding the NATS server or a dummy // test logger that may not implement that interface. if l, ok := s.logging.logger.(io.Closer); ok { if err := l.Close(); err != nil { s.Errorf("Error closing logger: %v", err) } } } s.logging.logger = logger s.logging.Unlock() }
go
func (s *Server) SetLogger(logger Logger, debugFlag, traceFlag bool) { if debugFlag { atomic.StoreInt32(&s.logging.debug, 1) } else { atomic.StoreInt32(&s.logging.debug, 0) } if traceFlag { atomic.StoreInt32(&s.logging.trace, 1) } else { atomic.StoreInt32(&s.logging.trace, 0) } s.logging.Lock() if s.logging.logger != nil { // Check to see if the logger implements io.Closer. This could be a // logger from another process embedding the NATS server or a dummy // test logger that may not implement that interface. if l, ok := s.logging.logger.(io.Closer); ok { if err := l.Close(); err != nil { s.Errorf("Error closing logger: %v", err) } } } s.logging.logger = logger s.logging.Unlock() }
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// SetLogger sets the logger of the server
[ "SetLogger", "sets", "the", "logger", "of", "the", "server" ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/log.go#L87-L111
164,395
nats-io/gnatsd
server/log.go
ReOpenLogFile
func (s *Server) ReOpenLogFile() { // Check to make sure this is a file logger. s.logging.RLock() ll := s.logging.logger s.logging.RUnlock() if ll == nil { s.Noticef("File log re-open ignored, no logger") return } // Snapshot server options. opts := s.getOpts() if opts.LogFile == "" { s.Noticef("File log re-open ignored, not a file logger") } else { fileLog := srvlog.NewFileLogger(opts.LogFile, opts.Logtime, opts.Debug, opts.Trace, true) s.SetLogger(fileLog, opts.Debug, opts.Trace) s.Noticef("File log re-opened") } }
go
func (s *Server) ReOpenLogFile() { // Check to make sure this is a file logger. s.logging.RLock() ll := s.logging.logger s.logging.RUnlock() if ll == nil { s.Noticef("File log re-open ignored, no logger") return } // Snapshot server options. opts := s.getOpts() if opts.LogFile == "" { s.Noticef("File log re-open ignored, not a file logger") } else { fileLog := srvlog.NewFileLogger(opts.LogFile, opts.Logtime, opts.Debug, opts.Trace, true) s.SetLogger(fileLog, opts.Debug, opts.Trace) s.Noticef("File log re-opened") } }
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// ReOpenLogFile if the logger is a file based logger, close and re-open the file. // This allows for file rotation by 'mv'ing the file then signaling // the process to trigger this function.
[ "ReOpenLogFile", "if", "the", "logger", "is", "a", "file", "based", "logger", "close", "and", "re", "-", "open", "the", "file", ".", "This", "allows", "for", "file", "rotation", "by", "mv", "ing", "the", "file", "then", "signaling", "the", "process", "to", "trigger", "this", "function", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/log.go#L116-L138
164,396
nats-io/gnatsd
server/monitor.go
fill
func (ci *ConnInfo) fill(client *client, nc net.Conn, now time.Time) { ci.Cid = client.cid ci.Start = client.start ci.LastActivity = client.last ci.Uptime = myUptime(now.Sub(client.start)) ci.Idle = myUptime(now.Sub(client.last)) ci.RTT = client.getRTT() ci.OutMsgs = client.outMsgs ci.OutBytes = client.outBytes ci.NumSubs = uint32(len(client.subs)) ci.Pending = int(client.out.pb) ci.Name = client.opts.Name ci.Lang = client.opts.Lang ci.Version = client.opts.Version // inMsgs and inBytes are updated outside of the client's lock, so // we need to use atomic here. ci.InMsgs = atomic.LoadInt64(&client.inMsgs) ci.InBytes = atomic.LoadInt64(&client.inBytes) // If the connection is gone, too bad, we won't set TLSVersion and TLSCipher. // Exclude clients that are still doing handshake so we don't block in // ConnectionState(). if client.flags.isSet(handshakeComplete) && nc != nil { conn := nc.(*tls.Conn) cs := conn.ConnectionState() ci.TLSVersion = tlsVersion(cs.Version) ci.TLSCipher = tlsCipher(cs.CipherSuite) } if client.port != 0 { ci.Port = int(client.port) ci.IP = client.host } }
go
func (ci *ConnInfo) fill(client *client, nc net.Conn, now time.Time) { ci.Cid = client.cid ci.Start = client.start ci.LastActivity = client.last ci.Uptime = myUptime(now.Sub(client.start)) ci.Idle = myUptime(now.Sub(client.last)) ci.RTT = client.getRTT() ci.OutMsgs = client.outMsgs ci.OutBytes = client.outBytes ci.NumSubs = uint32(len(client.subs)) ci.Pending = int(client.out.pb) ci.Name = client.opts.Name ci.Lang = client.opts.Lang ci.Version = client.opts.Version // inMsgs and inBytes are updated outside of the client's lock, so // we need to use atomic here. ci.InMsgs = atomic.LoadInt64(&client.inMsgs) ci.InBytes = atomic.LoadInt64(&client.inBytes) // If the connection is gone, too bad, we won't set TLSVersion and TLSCipher. // Exclude clients that are still doing handshake so we don't block in // ConnectionState(). if client.flags.isSet(handshakeComplete) && nc != nil { conn := nc.(*tls.Conn) cs := conn.ConnectionState() ci.TLSVersion = tlsVersion(cs.Version) ci.TLSCipher = tlsCipher(cs.CipherSuite) } if client.port != 0 { ci.Port = int(client.port) ci.IP = client.host } }
[ "func", "(", "ci", "*", "ConnInfo", ")", "fill", "(", "client", "*", "client", ",", "nc", "net", ".", "Conn", ",", "now", "time", ".", "Time", ")", "{", "ci", ".", "Cid", "=", "client", ".", "cid", "\n", "ci", ".", "Start", "=", "client", ".", "start", "\n", "ci", ".", "LastActivity", "=", "client", ".", "last", "\n", "ci", ".", "Uptime", "=", "myUptime", "(", "now", ".", "Sub", "(", "client", ".", "start", ")", ")", "\n", "ci", ".", "Idle", "=", "myUptime", "(", "now", ".", "Sub", "(", "client", ".", "last", ")", ")", "\n", "ci", ".", "RTT", "=", "client", ".", "getRTT", "(", ")", "\n", "ci", ".", "OutMsgs", "=", "client", ".", "outMsgs", "\n", "ci", ".", "OutBytes", "=", "client", ".", "outBytes", "\n", "ci", ".", "NumSubs", "=", "uint32", "(", "len", "(", "client", ".", "subs", ")", ")", "\n", "ci", ".", "Pending", "=", "int", "(", "client", ".", "out", ".", "pb", ")", "\n", "ci", ".", "Name", "=", "client", ".", "opts", ".", "Name", "\n", "ci", ".", "Lang", "=", "client", ".", "opts", ".", "Lang", "\n", "ci", ".", "Version", "=", "client", ".", "opts", ".", "Version", "\n", "// inMsgs and inBytes are updated outside of the client's lock, so", "// we need to use atomic here.", "ci", ".", "InMsgs", "=", "atomic", ".", "LoadInt64", "(", "&", "client", ".", "inMsgs", ")", "\n", "ci", ".", "InBytes", "=", "atomic", ".", "LoadInt64", "(", "&", "client", ".", "inBytes", ")", "\n\n", "// If the connection is gone, too bad, we won't set TLSVersion and TLSCipher.", "// Exclude clients that are still doing handshake so we don't block in", "// ConnectionState().", "if", "client", ".", "flags", ".", "isSet", "(", "handshakeComplete", ")", "&&", "nc", "!=", "nil", "{", "conn", ":=", "nc", ".", "(", "*", "tls", ".", "Conn", ")", "\n", "cs", ":=", "conn", ".", "ConnectionState", "(", ")", "\n", "ci", ".", "TLSVersion", "=", "tlsVersion", "(", "cs", ".", "Version", ")", "\n", "ci", ".", "TLSCipher", "=", "tlsCipher", "(", "cs", ".", "CipherSuite", ")", "\n", "}", "\n\n", "if", "client", ".", "port", "!=", "0", "{", "ci", ".", "Port", "=", "int", "(", "client", ".", "port", ")", "\n", "ci", ".", "IP", "=", "client", ".", "host", "\n", "}", "\n", "}" ]
// Fills in the ConnInfo from the client. // client should be locked.
[ "Fills", "in", "the", "ConnInfo", "from", "the", "client", ".", "client", "should", "be", "locked", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/monitor.go#L357-L390
164,397
nats-io/gnatsd
server/monitor.go
getRTT
func (c *client) getRTT() string { if c.rtt == 0 { // If a real client, go ahead and send ping now to get a value // for RTT. For tests and telnet, or if client is closing, etc skip. if !c.flags.isSet(clearConnection) && c.flags.isSet(connectReceived) && c.opts.Lang != "" { c.sendPing() } return "" } var rtt time.Duration if c.rtt > time.Microsecond && c.rtt < time.Millisecond { rtt = c.rtt.Truncate(time.Microsecond) } else { rtt = c.rtt.Truncate(time.Millisecond) } return rtt.String() }
go
func (c *client) getRTT() string { if c.rtt == 0 { // If a real client, go ahead and send ping now to get a value // for RTT. For tests and telnet, or if client is closing, etc skip. if !c.flags.isSet(clearConnection) && c.flags.isSet(connectReceived) && c.opts.Lang != "" { c.sendPing() } return "" } var rtt time.Duration if c.rtt > time.Microsecond && c.rtt < time.Millisecond { rtt = c.rtt.Truncate(time.Microsecond) } else { rtt = c.rtt.Truncate(time.Millisecond) } return rtt.String() }
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// Assume lock is held
[ "Assume", "lock", "is", "held" ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/monitor.go#L393-L409
164,398
nats-io/gnatsd
server/monitor.go
HandleConnz
func (s *Server) HandleConnz(w http.ResponseWriter, r *http.Request) { sortOpt := SortOpt(r.URL.Query().Get("sort")) auth, err := decodeBool(w, r, "auth") if err != nil { return } subs, err := decodeBool(w, r, "subs") if err != nil { return } offset, err := decodeInt(w, r, "offset") if err != nil { return } limit, err := decodeInt(w, r, "limit") if err != nil { return } cid, err := decodeUint64(w, r, "cid") if err != nil { return } state, err := decodeState(w, r) if err != nil { return } connzOpts := &ConnzOptions{ Sort: sortOpt, Username: auth, Subscriptions: subs, Offset: offset, Limit: limit, CID: cid, State: state, } s.mu.Lock() s.httpReqStats[ConnzPath]++ s.mu.Unlock() c, err := s.Connz(connzOpts) if err != nil { w.WriteHeader(http.StatusBadRequest) w.Write([]byte(err.Error())) return } b, err := json.MarshalIndent(c, "", " ") if err != nil { s.Errorf("Error marshaling response to /connz request: %v", err) } // Handle response ResponseHandler(w, r, b) }
go
func (s *Server) HandleConnz(w http.ResponseWriter, r *http.Request) { sortOpt := SortOpt(r.URL.Query().Get("sort")) auth, err := decodeBool(w, r, "auth") if err != nil { return } subs, err := decodeBool(w, r, "subs") if err != nil { return } offset, err := decodeInt(w, r, "offset") if err != nil { return } limit, err := decodeInt(w, r, "limit") if err != nil { return } cid, err := decodeUint64(w, r, "cid") if err != nil { return } state, err := decodeState(w, r) if err != nil { return } connzOpts := &ConnzOptions{ Sort: sortOpt, Username: auth, Subscriptions: subs, Offset: offset, Limit: limit, CID: cid, State: state, } s.mu.Lock() s.httpReqStats[ConnzPath]++ s.mu.Unlock() c, err := s.Connz(connzOpts) if err != nil { w.WriteHeader(http.StatusBadRequest) w.Write([]byte(err.Error())) return } b, err := json.MarshalIndent(c, "", " ") if err != nil { s.Errorf("Error marshaling response to /connz request: %v", err) } // Handle response ResponseHandler(w, r, b) }
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// HandleConnz process HTTP requests for connection information.
[ "HandleConnz", "process", "HTTP", "requests", "for", "connection", "information", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/monitor.go#L474-L528
164,399
nats-io/gnatsd
server/monitor.go
Routez
func (s *Server) Routez(routezOpts *RoutezOptions) (*Routez, error) { rs := &Routez{Routes: []*RouteInfo{}} rs.Now = time.Now() subs := routezOpts != nil && routezOpts.Subscriptions s.mu.Lock() rs.NumRoutes = len(s.routes) // copy the server id for monitoring rs.ID = s.info.ID // Check for defined permissions for all connected routes. if perms := s.getOpts().Cluster.Permissions; perms != nil { rs.Import = perms.Import rs.Export = perms.Export } // Walk the list for _, r := range s.routes { r.mu.Lock() ri := &RouteInfo{ Rid: r.cid, RemoteID: r.route.remoteID, DidSolicit: r.route.didSolicit, IsConfigured: r.route.routeType == Explicit, InMsgs: atomic.LoadInt64(&r.inMsgs), OutMsgs: r.outMsgs, InBytes: atomic.LoadInt64(&r.inBytes), OutBytes: r.outBytes, NumSubs: uint32(len(r.subs)), Import: r.opts.Import, Export: r.opts.Export, } if subs && len(r.subs) > 0 { ri.Subs = make([]string, 0, len(r.subs)) for _, sub := range r.subs { ri.Subs = append(ri.Subs, string(sub.subject)) } } switch conn := r.nc.(type) { case *net.TCPConn, *tls.Conn: addr := conn.RemoteAddr().(*net.TCPAddr) ri.Port = addr.Port ri.IP = addr.IP.String() } r.mu.Unlock() rs.Routes = append(rs.Routes, ri) } s.mu.Unlock() return rs, nil }
go
func (s *Server) Routez(routezOpts *RoutezOptions) (*Routez, error) { rs := &Routez{Routes: []*RouteInfo{}} rs.Now = time.Now() subs := routezOpts != nil && routezOpts.Subscriptions s.mu.Lock() rs.NumRoutes = len(s.routes) // copy the server id for monitoring rs.ID = s.info.ID // Check for defined permissions for all connected routes. if perms := s.getOpts().Cluster.Permissions; perms != nil { rs.Import = perms.Import rs.Export = perms.Export } // Walk the list for _, r := range s.routes { r.mu.Lock() ri := &RouteInfo{ Rid: r.cid, RemoteID: r.route.remoteID, DidSolicit: r.route.didSolicit, IsConfigured: r.route.routeType == Explicit, InMsgs: atomic.LoadInt64(&r.inMsgs), OutMsgs: r.outMsgs, InBytes: atomic.LoadInt64(&r.inBytes), OutBytes: r.outBytes, NumSubs: uint32(len(r.subs)), Import: r.opts.Import, Export: r.opts.Export, } if subs && len(r.subs) > 0 { ri.Subs = make([]string, 0, len(r.subs)) for _, sub := range r.subs { ri.Subs = append(ri.Subs, string(sub.subject)) } } switch conn := r.nc.(type) { case *net.TCPConn, *tls.Conn: addr := conn.RemoteAddr().(*net.TCPAddr) ri.Port = addr.Port ri.IP = addr.IP.String() } r.mu.Unlock() rs.Routes = append(rs.Routes, ri) } s.mu.Unlock() return rs, nil }
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// Routez returns a Routez struct containing inormation about routes.
[ "Routez", "returns", "a", "Routez", "struct", "containing", "inormation", "about", "routes", "." ]
7ebe2836016a033f11d9da712ed6a1abb95c06dd
https://github.com/nats-io/gnatsd/blob/7ebe2836016a033f11d9da712ed6a1abb95c06dd/server/monitor.go#L566-L618