libexplain/buffer/errno/signalfd.h File Reference

#include <libexplain/ac/sys/signalfd.h>
#include <libexplain/string_buffer.h>

Go to the source code of this file.

Functions
void	explain_buffer_errno_signalfd (explain_string_buffer_t *sb, int errnum, int fildes, const sigset_t *mask, int flags)

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Function Documentation

void explain_buffer_errno_signalfd	(	explain_string_buffer_t *	sb,
		int	errnum,
		int	fildes,
		const sigset_t *	mask,
		int	flags
	)

The explain_buffer_errno_signalfd function is used to obtain an explanation of an error returned by the signalfd(2) system call. The least the message will contain is the value of strerror(errnum), but usually it will do much better, and indicate the underlying cause in more detail.

Parameters:

sb	The string buffer to print the message into. If a suitable buffer is specified, this function is thread safe.
errnum	The error value to be decoded, usually obtained from the errno global variable just before this function is called. This is necessary if you need to call any code between the system call to be explained and this function, because many libc functions will alter the value of errno.
fildes	The original fildes, exactly as passed to the signalfd(2) system call.
mask	The original mask, exactly as passed to the signalfd(2) system call.
flags	The original flags, exactly as passed to the signalfd(2) system call.

Definition at line 108 of file signalfd.c.