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 0.52
Copyright (C) 2008 Peter Miller
