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| explain_timerfd_create_or_die(3) | FreeBSD Library Functions Manual | explain_timerfd_create_or_die(3) |
NAME
explain_timerfd_create_or_die - create file descriptor timers and report errorsSYNOPSIS
#include <libexplain/timerfd_create.h>int explain_timerfd_create_or_die(int clockid, int flags);
int explain_timerfd_create_on_error(int clockid, int flags);
DESCRIPTION
The explain_timerfd_create_or_die function is used to call the timerfd_create(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_timerfd_create(3) function, and then the process terminates by calling exit(EXIT_FAILURE).The explain_timerfd_create_on_error function is used to call the timerfd_create(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_timerfd_create(3) function, but still returns to the caller.
- clockid
- The clockid, exactly as to be passed to the timerfd_create(2) system call.
- flags
- The flags, exactly as to be passed to the timerfd_create(2) system call.
RETURN VALUE
The explain_timerfd_create_or_die function only returns on success, see timerfd_create(2) for more information. On failure, prints an explanation and exits, it does not return.The explain_timerfd_create_on_error function always returns the value return by the wrapped timerfd_create(2) system call.
EXAMPLE
The explain_timerfd_create_or_die function is intended to be used in a fashion similar to the following example:int result = explain_timerfd_create_or_die(clockid, flags);
SEE ALSO
- timerfd_create(2)
- timers that notify via file descriptors
- explain_timerfd_create(3)
- explain timerfd_create(2) errors
- exit(2)
- terminate the calling process
COPYRIGHT
libexplain version 1.3Copyright (C) 2009 Peter Miller
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