libexplain/buffer/errno/pwrite.c File Reference

#include <libexplain/ac/errno.h>
#include <libexplain/buffer/errno/lseek.h>
#include <libexplain/buffer/errno/pwrite.h>
#include <libexplain/buffer/errno/write.h>
#include <libexplain/buffer/fildes.h>
#include <libexplain/buffer/off_t.h>
#include <libexplain/buffer/pointer.h>
#include <libexplain/buffer/size_t.h>
#include <libexplain/explanation.h>

Go to the source code of this file.

Functions
static void	explain_buffer_errno_pwrite_system_call (explain_string_buffer_t *sb, int errnum, int fildes, const void *data, size_t data_size, off_t offset)
static void	explain_buffer_errno_pwrite_explanation (explain_string_buffer_t *sb, int errnum, const char *syscall_name, int fildes, const void *data, size_t data_size, off_t offset)
void	explain_buffer_errno_pwrite (explain_string_buffer_t *sb, int errnum, int fildes, const void *data, size_t data_size, off_t offset)

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Function Documentation

void explain_buffer_errno_pwrite	(	explain_string_buffer_t *	sb,
		int	errnum,
		int	fildes,
		const void *	data,
		size_t	data_size,
		off_t	offset
	)

The explain_buffer_errno_pwrite function is used to obtain an explanation of an error returned by the pwrite(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 pwrite(2) system call.
data	The original data, exactly as passed to the pwrite(2) system call.
data_size	The original data_size, exactly as passed to the pwrite(2) system call.
offset	The original offset, exactly as passed to the pwrite(2) system call.

Definition at line 98 of file pwrite.c.

static void explain_buffer_errno_pwrite_explanation	(	explain_string_buffer_t *	sb,
		int	errnum,
		const char *	syscall_name,
		int	fildes,
		const void *	data,
		size_t	data_size,
		off_t	offset
	)		[static]

Definition at line 49 of file pwrite.c.

static void explain_buffer_errno_pwrite_system_call	(	explain_string_buffer_t *	sb,
		int	errnum,
		int	fildes,
		const void *	data,
		size_t	data_size,
		off_t	offset
	)		[static]

Definition at line 32 of file pwrite.c.