explain_wait4_or_die(3)
NAME
explain_wait4_or_die - wait for process to change state and report
errors
SYNOPSIS
#include <libexplain/wait4.h> void explain_wait4_or_die(int pid, int *status, int options, struct rusage *rusage);
DESCRIPTION
The explain_wait4_or_die function is used to call the wait4(2) system
call. On failure an explanation will be printed to stderr, obtained
from explain_wait4(3), and then the process terminates by calling
exit(EXIT_FAILURE).
- This function is intended to be used in a fashion similar to the following example:
- explain_wait4_or_die(pid, status, options, rusage);
- pid The pid, exactly as to be passed to the wait4(2) system call.
- status The status, exactly as to be passed to the wait4(2) system
- call.
- options The options, exactly as to be passed to the wait4(2) system
- call.
- rusage The rusage, exactly as to be passed to the wait4(2) system
- call.
- Returns:
- This function only returns on success, see wait4(2) for more information. On failure, prints an explanation and exits.
SEE ALSO
- wait4(2)
- wait for process to change state
- explain_wait4(3)
- explain wait4(2) errors
- exit(2) terminate the calling process
COPYRIGHT
- libexplain version 0.37
Copyright (C) 2008 Peter Miller