NAME¶
explain_timerfd_create_or_die - create file descriptor timers and report errors
SYNOPSIS¶
#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 0.52
Copyright (C) 2009 Peter Miller