lib/event_counter.c

   1 /*
   2  * Copyright (C) 2016 Christian Franke
   3  *
   4  * This file is part of Quagga.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  22  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  23  * DEALINGS IN THE SOFTWARE.
  24  *
  25  * Alternatively, you can use, redistribute and/or modify it under the
  26  * following terms:
  27  *
  28  * Quagga is free software; you can redistribute it and/or modify it
  29  * under the terms of the GNU General Public License as published by the
  30  * Free Software Foundation; either version 2, or (at your option) any
  31  * later version.
  32  *
  33  * Quagga is distributed in the hope that it will be useful, but
  34  * WITHOUT ANY WARRANTY; without even the implied warranty of
  35  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  36  * General Public License for more details.
  37  *
  38  * You should have received a copy of the GNU General Public License along
  39  * with this program; see the file COPYING; if not, write to the Free Software
  40  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  41  */
  42
  43 #include <zebra.h>
  44
  45 #include "event_counter.h"
  46
  47 void event_counter_inc(struct event_counter *counter)
  48 {
  49         counter->count++;
  50         counter->last = time(NULL);
  51 }
  52
  53 const char *event_counter_format(const struct event_counter *counter)
  54 {
  55         struct tm last_change_store;
  56         struct tm *last_change;
  57         char timebuf[sizeof("Thu, 01 Jan 1970 00:00:00 +0000")];
  58         static char rv[20 + sizeof("  last: ") + sizeof(timebuf)];
  59
  60         last_change = localtime_r(&counter->last, &last_change_store);
  61         if (!last_change
  62             || strftime(timebuf, sizeof(timebuf), "%a, %d %b %Y %T %z",
  63                         last_change)
  64                        == 0) {
  65                 strncpy(timebuf, "???", sizeof(timebuf));
  66         }
  67
  68         snprintf(rv, sizeof(rv), "%5llu  last: %s", counter->count,
  69                  counter->last ? timebuf : "(never)");
  70         return rv;
  71 }