/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ /*** This file is part of systemd. Copyright 2014 Kay Sievers systemd is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with systemd; If not, see . ***/ #include #include #include #include #include #include #include #include #include #include #include #include "sd-event.h" #include "util.h" #include "log.h" #include "timedate-sntp.h" typedef struct Manager Manager; struct Manager { sd_event *event; SNTPContext *sntp; }; static void manager_free(Manager *m); DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free); #define _cleanup_manager_free_ _cleanup_(manager_freep) static int manager_new(Manager **ret) { _cleanup_manager_free_ Manager *m = NULL; int r; m = new0(Manager, 1); if (!m) return -ENOMEM; r = sd_event_default(&m->event); if (r < 0) return r; *ret = m; m = NULL; return 0; } static void manager_free(Manager *m) { if (!m) return; m->sntp = sntp_unref(m->sntp); sd_event_unref(m->event); free(m); } static void manager_report(usec_t poll_usec, double offset, double delay, double jitter, bool spike) { log_info("%4llu %+10f %10f %10f%s", poll_usec / USEC_PER_SEC, offset, delay, jitter, spike ? " spike" : ""); } int main(int argc, char *argv[]) { _cleanup_manager_free_ Manager *m = NULL; const char *server; int r; r = manager_new(&m); if (r < 0) goto out; r = sntp_new(&m->sntp, m->event); if (r < 0) goto out; if (argv[1]) log_set_max_level(LOG_DEBUG); else sntp_report_register(m->sntp, manager_report); //server = "216.239.32.15"; /* time1.google.com */ //server = "192.53.103.108"; /* ntp1.ptb.de */ server = "27.54.95.11"; /* au.pool.ntp.org */ r = sntp_server_connect(m->sntp, server); if (r < 0) goto out; r = sd_event_loop(m->event); if (r < 0) goto out; out: return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; }