libexplain/buffer/errno/wait.h File Reference

#include <libexplain/string_buffer.h>

Go to the source code of this file.

Functions
void	explain_buffer_errno_wait (explain_string_buffer_t *sb, int errnum, int *status)
void	explain_buffer_errno_wait_explanation (explain_string_buffer_t *sb, int errnum, const char *syscall_name, int *status)

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Function Documentation

void explain_buffer_errno_wait	(	explain_string_buffer_t *	sb,
		int	errnum,
		int *	status
	)

The explain_buffer_errno_wait function is used to obtain an explanation of an error returned by the wait(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.
status	The original status, exactly as passed to the wait(2) system call.

Definition at line 74 of file wait.c.

void explain_buffer_errno_wait_explanation	(	explain_string_buffer_t *	sb,
		int	errnum,
		const char *	syscall_name,
		int *	status
	)

The explain_buffer_errno_wait_explanation function is used by the explain_buffer_errno_wait function (and others) to describe the problem in detail.

Parameters:

sb	The string buffer to print the message into.
errnum	The error value to be decoded.
syscall_name	The name of the offending system call.
status	The original status, exactly as passed to the wait(2) system call.

Definition at line 44 of file wait.c.