NAME

explain_getpriority_or_die - get program scheduling priority and report errors

SYNOPSIS

#include <libexplain/getpriority.h>

int explain_getpriority_or_die(int which, int who);
int explain_getpriority_on_error(int which, int who);

DESCRIPTION

The explain_getpriority_or_die function is used to call the getpriority(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_getpriority(3) function, and then the process terminates by calling exit(EXIT_FAILURE).

The explain_getpriority_on_error function is used to call the getpriority(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_getpriority(3) function, but still returns to the caller.

which: The which, exactly as to be passed to the getpriority(2) system call.
who: The who, exactly as to be passed to the getpriority(2) system call.

RETURN VALUE

The explain_getpriority_or_die function only returns on success, see getpriority(2) for more information. On failure, prints an explanation and exits, it does not return.

The explain_getpriority_on_error function always returns the value return by the wrapped getpriority(2) system call.

EXAMPLE

The explain_getpriority_or_die function is intended to be used in a fashion similar to the following example:

int result = explain_getpriority_or_die(which, who);

NAME

SYNOPSIS

DESCRIPTION

RETURN VALUE

EXAMPLE

SEE ALSO

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