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Man Pages


Manual Reference Pages  -  EXPLAIN_TIMERFD_CREATE_OR_DIE (3)

NAME

explain_timerfd_create_or_die - create file descriptor timers and report errors
"timers that notify via file descriptors and report errors"

CONTENTS

Synopsis
Description
Return Value
Example
See Also
Copyright

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 B]explain_timerfd_create_or_die function is used to call the I]timerfd_create(2) system call. On failure an explanation will be printed to I]stderr, obtained from the I]explain_timerfd_create(3) function, and then the process terminates by calling CW]exit(EXIT_FAILURE).

The B]explain_timerfd_create_on_error function is used to call the I]timerfd_create(2) system call. On failure an explanation will be printed to I]stderr, obtained from the I]explain_timerfd_create(3) function, but still returns to the caller.
I]clockid
  The clockid, exactly as to be passed to the I]timerfd_create(2) system call.
I]flags The flags, exactly as to be passed to the I]timerfd_create(2) system call.

RETURN VALUE

The B]explain_timerfd_create_or_die function only returns on success, see I]timerfd_create(2) for more information. On failure, prints an explanation and exits, it does not return.

The B]explain_timerfd_create_on_error function always returns the value return by the wrapped I]timerfd_create(2) system call.

EXAMPLE

The B]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

I]timerfd_create(2)
  timers that notify via file descriptors
I]explain_timerfd_create(3)
  explain I]timerfd_create(2) errors
I]exit(2) terminate the calling process

COPYRIGHT

libexplain version 1.3
Copyright © 2009 Peter Miller
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