SIMPLE SOLUTIONS

EXPLAIN_NICE_OR_DIE - reference manual online

Change process priority and report errors.

Chapter
explain_nice_or_die(3)               Library Functions Manual              explain_nice_or_die(3)

NAME explain_nice_or_die - change process priority and report errors
SYNOPSIS #include <libexplain/nice.h> int explain_nice_or_die(int inc); int explain_nice_on_error(int inc);
DESCRIPTION The explain_nice_or_die function is used to call the nice(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_nice(3) function, and then the process terminates by calling exit(EXIT_FAILURE). The explain_nice_on_error function is used to call the nice(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_nice(3) function, but still returns to the caller. inc The inc, exactly as to be passed to the nice(2) system call.
RETURN VALUE The explain_nice_or_die function only returns on success, see nice(2) for more informa‐ tion. On failure, prints an explanation and exits, it does not return. The explain_nice_on_error function always returns the value return by the wrapped nice(2) system call.
EXAMPLE The explain_nice_or_die function is intended to be used in a fashion similar to the fol‐ lowing example: int result = explain_nice_or_die(inc);
SEE ALSO nice(2) change process priority explain_nice(3) explain nice(2) errors exit(2) terminate the calling process
explain_nice_or_die(3)
This manual Reference Other manuals
explain_nice_or_die(3) referred by explain(3) | explain_nice(3)
refer to _exit(2) | explain_nice(3) | nice(2)