libexplain/buffer/errno/getpriority.h File Reference

#include <libexplain/string_buffer.h>

Go to the source code of this file.

Functions
void	explain_buffer_errno_getpriority (explain_string_buffer_t *sb, int errnum, int which, int who)
void	explain_buffer_errno_getpriority_explanation (explain_string_buffer_t *sb, int errnum, const char *syscall_name, int which, int who)

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Function Documentation

void explain_buffer_errno_getpriority	(	explain_string_buffer_t *	sb,
		int	errnum,
		int	which,
		int	who
	)

The explain_buffer_errno_getpriority function is used to obtain an explanation of an error returned by the getpriority(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.
which	The original which, exactly as passed to the getpriority(2) system call.
who	The original who, exactly as passed to the getpriority(2) system call.

Definition at line 156 of file getpriority.c.

void explain_buffer_errno_getpriority_explanation	(	explain_string_buffer_t *	sb,
		int	errnum,
		const char *	syscall_name,
		int	which,
		int	who
	)

The explain_buffer_errno_getpriority_explanation function is used to obtain the explanation (the part after "because") of an error returned by the getpriority(2) system call (and similar).

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.
syscall_name	The name of the offending system call.
which	The original which, exactly as passed to the getpriority(2) system call.
who	The original who, exactly as passed to the getpriority(2) system call.

Definition at line 69 of file getpriority.c.