libexplain  1.4.D001
Functions
libexplain/buffer/errno/setpriority.h File Reference
#include <libexplain/string_buffer.h>

Go to the source code of this file.

Functions

void explain_buffer_errno_setpriority (explain_string_buffer_t *sb, int errnum, int which, int who, int prio)
void explain_buffer_errno_setpriority_explanation (explain_string_buffer_t *sb, int errnum, const char *syscall_name, int which, int who, int prio)

Function Documentation

void explain_buffer_errno_setpriority ( explain_string_buffer_t sb,
int  errnum,
int  which,
int  who,
int  prio 
)

The explain_buffer_errno_setpriority function is used to obtain an explanation of an error returned by the setpriority(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:
sbThe string buffer to print the message into. If a suitable buffer is specified, this function is thread safe.
errnumThe 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.
whichThe original which, exactly as passed to the setpriority(2) system call.
whoThe original who, exactly as passed to the setpriority(2) system call.
prioThe original prio, exactly as passed to the setpriority(2) system call.

Definition at line 213 of file setpriority.c.

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

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

Parameters:
sbThe string buffer to print the message into. If a suitable buffer is specified, this function is thread safe.
errnumThe 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_nameThe name of the offending system call.
whichThe original which, exactly as passed to the setpriority(2) system call.
whoThe original who, exactly as passed to the setpriority(2) system call.
prioThe original prio, exactly as passed to the setpriority(2) system call.

Definition at line 71 of file setpriority.c.