text
stringlengths
0
234
for (tot_exp = 0; tot_exp < max_exp;) {
s = read(fd, &exp, sizeof(uint64_t));
if (s != sizeof(uint64_t))
handle_error("read");
tot_exp += exp;
print_elapsed_time();
printf("read: %" priu64 "; total=%" priu64 "\en", exp, tot_exp);
}
exit(exit_success);
}
.ee
.sh see also
.br eventfd (2),
.br poll (2),
.br read (2),
.br select (2),
.br setitimer (2),
.br signalfd (2),
.br timer_create (2),
.br timer_gettime (2),
.br timer_settime (2),
.br epoll (7),
.br time (7)
.sh colophon
this page is part of release 5.13 of the linux
.i man-pages
project.
a description of the project,
information about reporting bugs,
and the latest version of this page,
can be found at
\%https://www.kernel.org/doc/man\-pages/.
.\" copyright (c) 2002 andries brouwer ([email protected])
.\"
.\" %%%license_start(verbatim)
.\" permission is granted to make and distribute verbatim copies of this
.\" manual provided the copyright notice and this permission notice are
.\" preserved on all copies.
.\"
.\" permission is granted to copy and distribute modified versions of this
.\" manual under the conditions for verbatim copying, provided that the
.\" entire resulting derived work is distributed under the terms of a
.\" permission notice identical to this one.
.\"
.\" since the linux kernel and libraries are constantly changing, this
.\" manual page may be incorrect or out-of-date. the author(s) assume no
.\" responsibility for errors or omissions, or for damages resulting from
.\" the use of the information contained herein. the author(s) may not
.\" have taken the same level of care in the production of this manual,
.\" which is licensed free of charge, as they might when working
.\" professionally.
.\"
.\" formatted or processed versions of this manual, if unaccompanied by
.\" the source, must acknowledge the copyright and authors of this work.
.\" %%%license_end
.\"
.\" inspired by a page written by walter harms.
.\"
.th getfsent 3 2021-03-22 "gnu" "linux programmer's manual"
.sh name
getfsent, getfsspec, getfsfile, setfsent, endfsent \- handle fstab entries
.sh synopsis
.nf
.b #include <fstab.h>
.pp
.b "int setfsent(void);"
.b "struct fstab *getfsent(void);"
.b "void endfsent(void);"
.pp
.bi "struct fstab *getfsfile(const char *" mount_point );
.bi "struct fstab *getfsspec(const char *" special_file );
.fi
.sh description
these functions read from the file
.ir /etc/fstab .
the
.ir "struct fstab"
is defined by:
.pp
.in +4n
.ex
struct fstab {
char *fs_spec; /* block device name */
char *fs_file; /* mount point */
char *fs_vfstype; /* filesystem type */
char *fs_mntops; /* mount options */
const char *fs_type; /* rw/rq/ro/sw/xx option */
int fs_freq; /* dump frequency, in days */
int fs_passno; /* pass number on parallel dump */
};
.ee
.in
.pp
here the field
.i fs_type
contains (on a *bsd system)