libexplain/select_or_die.c File Reference

#include <libexplain/ac/sys/select.h>
#include <libexplain/output.h>
#include <libexplain/select.h>

Go to the source code of this file.

Functions
int	explain_select_or_die (int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout)

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Function Documentation

int explain_select_or_die	(	int	nfds,
		fd_set *	readfds,
		fd_set *	writefds,
		fd_set *	exceptfds,
		struct timeval *	timeout
	)

The explain_select_or_die function is used to call the select(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_select(3) function, 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_select_or_die(nfds, readfds, writefds, exceptfds, timeout);

Parameters:

nfds	The nfds, exactly as to be passed to the select(2) system call.
readfds	The readfds, exactly as to be passed to the select(2) system call.
writefds	The writefds, exactly as to be passed to the select(2) system call.
exceptfds	The exceptfds, exactly as to be passed to the select(2) system call.
timeout	The timeout, exactly as to be passed to the select(2) system call.

Returns:

This function only returns on success. On failure, prints an explanation and exits, it does not return.

Definition at line 26 of file select_or_die.c.