explain_adjtime_or_die3
Smoothly tune kernel clock and report errors
Usage
#include <libexplain/adjtime.h>
void explain_adjtime_or_die(const struct timeval *delta, struct timeval *olddelta);
int explain_adjtime_on_error(const struct timeval *delta, struct timeval *olddelta);
Overview
The explain_adjtime_or_die function is used to call the adjtime(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_adjtime(3) function, and then the process terminates by calling exit(EXIT_FAILURE).
The explain_adjtime_on_error function is used to call the adjtime(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_adjtime(3) function, but still returns to the caller.
delta
|
The delta, exactly as to be passed to the adjtime(2) system call. |
|---|---|
olddelta
|
The olddelta, exactly as to be passed to the adjtime(2) system call. |
Return value
The explain_adjtime_or_die function only returns on success, see adjtime(2) for more information. On failure, prints an explanation and exits, it does not return.
The explain_adjtime_on_error function always returns the value return by the wrapped adjtime(2) system call.
Examples
The explain_adjtime_or_die function is intended to be used in a fashion similar to the following example:
explain_adjtime_or_die(delta, olddelta);Releases
6 releases since Debian 7 (Wheezy); the text changed 1 time.