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#include "usdt.h" |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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static void |
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fire_probe(usdt_probedef_t *probedef, int argc, void **argv) |
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{ |
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if (usdt_is_enabled(probedef->probe)) |
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usdt_fire_probe(probedef->probe, argc, argv); |
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} |
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int main(int argc, char **argv) { |
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usdt_provider_t *provider; |
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usdt_probedef_t *probedef; |
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char char_argv[USDT_ARG_MAX]; |
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int int_argv[USDT_ARG_MAX * 2]; |
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void **args = NULL; |
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int i; |
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char buf[255]; |
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for (i = 0; i < USDT_ARG_MAX; i++) |
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int_argv[i] = i + 1; |
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for (i = 0; i < USDT_ARG_MAX; i++) |
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char_argv[i] = (char) i + 65; |
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if (argc < 3) { |
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fprintf(stderr, "usage: %s func name [types ...]\n", argv[0]); |
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return(1); |
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} |
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if (argc > 3) { |
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args = malloc((argc-3) * sizeof(void *)); |
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} |
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for (i = 0; i < USDT_ARG_MAX; i++) { |
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if (argv[i+3] != NULL && i+3 < argc) { |
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if (strncmp("c", argv[i+3], 1) == 0) { |
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args[i] = (void *)strndup(&char_argv[i], 1); |
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argv[i+3] = strdup("char *"); |
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} |
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if (strncmp("i", argv[i+3], 1) == 0) { |
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args[i] = (void *)(long)int_argv[i]; |
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argv[i+3] = strdup("int"); |
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} |
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} |
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} |
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if ((provider = usdt_create_provider("testlibusdt", "modname")) == NULL) { |
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fprintf(stderr, "unable to create provider\n"); |
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exit (1); |
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} |
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if ((probedef = usdt_create_probe((const char *)argv[1], |
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(const char *)argv[2], |
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(argc-3), (const char **)&argv[3])) == NULL) |
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{ |
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fprintf(stderr, "unable to create probe\n"); |
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exit (1); |
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} |
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usdt_provider_add_probe(provider, probedef); |
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if ((usdt_provider_enable(provider)) < 0) { |
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fprintf(stderr, "unable to enable provider: %s\n", usdt_errstr(provider)); |
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exit (1); |
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} |
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fprintf(stdout, "enabled\n"); |
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fflush(stdout); |
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fgets(buf, 255, stdin); |
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fire_probe(probedef, (argc-3), (void **)args); |
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usdt_probe_release(probedef); |
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if ((usdt_provider_disable(provider)) < 0) { |
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fprintf(stderr, "unable to disable provider: %s\n", usdt_errstr(provider)); |
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exit (1); |
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} |
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usdt_provider_free(provider); |
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return 0; |
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} |
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