#include <libexplain/ac/errno.h>
#include <libexplain/ac/fcntl.h>
#include <libexplain/ac/stdio.h>
#include <libexplain/buffer/ebadf.h>
#include <libexplain/buffer/efault.h>
#include <libexplain/buffer/eintr.h>
#include <libexplain/buffer/enomem.h>
#include <libexplain/buffer/errno/generic.h>
#include <libexplain/buffer/errno/select.h>
#include <libexplain/buffer/fd_set.h>
#include <libexplain/buffer/timeval.h>
#include <libexplain/explanation.h>
#include <libexplain/option.h>
#include <libexplain/is_efault.h>

Functions
static void	explain_buffer_errno_select_system_call (explain_string_buffer_t sb, int errnum, int nfds, fd_set readfds, fd_set writefds, fd_set exceptfds, struct timeval *timeout)
static int	file_descriptor_is_open (int fildes)
static void	explain_buffer_errno_select_explanation (explain_string_buffer_t sb, int errnum, const char syscall_name, int nfds, fd_set readfds, fd_set writefds, fd_set exceptfds, struct timeval timeout)
void	explain_buffer_errno_select (explain_string_buffer_t sb, int errnum, int nfds, fd_set readfds, fd_set writefds, fd_set exceptfds, struct timeval *timeout)

Function Documentation

void explain_buffer_errno_select	(	explain_string_buffer_t *	sb,
		int	errnum,
		int	nfds,
		fd_set *	readfds,
		fd_set *	writefds,
		fd_set *	exceptfds,
		struct timeval *	timeout
	)

The explain_buffer_errno_select function is used to obtain an explanation of an error returned by the select(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 safe 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.
nfds	The original nfds, exactly as passed to the select(2) system call.
readfds	The original readfds, exactly as passed to the select(2) system call.
writefds	The original writefds, exactly as passed to the select(2) system call.
exceptfds	The original exceptfds, exactly as passed to the select(2) system call.
timeout	The original timeout, exactly as passed to the select(2) system call.

Definition at line 188 of file select.c.

static void explain_buffer_errno_select_explanation	(	explain_string_buffer_t *	sb,
		int	errnum,
		const char *	syscall_name,
		int	nfds,
		fd_set *	readfds,
		fd_set *	writefds,
		fd_set *	exceptfds,
		struct timeval *	timeout
	)		`[static]`

Definition at line 66 of file select.c.

static void explain_buffer_errno_select_system_call	(	explain_string_buffer_t *	sb,
		int	errnum,
		int	nfds,
		fd_set *	readfds,
		fd_set *	writefds,
		fd_set *	exceptfds,
		struct timeval *	timeout
	)		`[static]`

Definition at line 37 of file select.c.

static int file_descriptor_is_open ( int fildes ) [static]

Definition at line 56 of file select.c.

Functions

Function Documentation