libexplain/wait_on_error.c File Reference

#include <libexplain/ac/errno.h>
#include <libexplain/ac/sys/wait.h>
#include <libexplain/wait.h>
#include <libexplain/output.h>

Go to the source code of this file.

Functions
int	explain_wait_on_error (int *status)

---

Function Documentation

int explain_wait_on_error

(

int *

status

)

The explain_wait_on_error function is used to call the wait(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_wait(3) function.

This function is intended to be used in a fashion similar to the following example:

 int pid = explain_wait_on_error(status);
 if (pid < 0)
 {
     ...cope with error
     ...no need to print error message
 }

Parameters:

status

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

Returns:

The value returned by the wrapped wait(2) system call.

Definition at line 27 of file wait_on_error.c.