explain_wait_or_die(3)

wait for process to change state and report errors

Section 3 libexplain-dev bookworm source

Description

explain_wait_or_die

NAME

explain_wait_or_die - wait for process to change state and report errors

SYNOPSIS

#include <libexplain/wait.h>
void explain_wait_or_die(int *status);

DESCRIPTION

The explain_wait_or_die function is used to call the wait(2) system call. On failure an explanation will be printed to stderr, obtained from explain_wait(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_wait_or_die(status);

status

The status, exactly as to be passed to the wait(2) system call.

Returns:

This function only returns on success. On failure, prints an explanation and exits.