timer.c

   1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
   2
   3 /***
   4   This file is part of systemd.
   5
   6   Copyright 2010 Lennart Poettering
   7
   8   systemd is free software; you can redistribute it and/or modify it
   9   under the terms of the GNU General Public License as published by
  10   the Free Software Foundation; either version 2 of the License, or
  11   (at your option) any later version.
  12
  13   systemd is distributed in the hope that it will be useful, but
  14   WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16   General Public License for more details.
  17
  18   You should have received a copy of the GNU General Public License
  19   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  20 ***/
  21
  22 #include <errno.h>
  23
  24 #include "unit.h"
  25 #include "timer.h"
  26
  27 static void timer_done(Unit *u) {
  28         Timer *t = TIMER(u);
  29
  30         assert(t);
  31 }
  32
  33 static int timer_init(Unit *u) {
  34         int r;
  35
  36         assert(u);
  37
  38         /* Make sure this config file actually exists */
  39
  40         if ((r = unit_load_fragment_and_dropin(u)) <= 0)
  41                 return r < 0 ? r : -ENOENT;
  42
  43         return 0;
  44 }
  45
  46 static UnitActiveState timer_active_state(Unit *u) {
  47
  48         static const UnitActiveState table[_TIMER_STATE_MAX] = {
  49                 [TIMER_DEAD] = UNIT_INACTIVE,
  50                 [TIMER_WAITING] = UNIT_ACTIVE,
  51                 [TIMER_RUNNING] = UNIT_ACTIVE
  52         };
  53
  54         return table[TIMER(u)->state];
  55 }
  56
  57 const UnitVTable timer_vtable = {
  58         .suffix = ".timer",
  59
  60         .init = timer_init,
  61         .done = timer_done,
  62
  63         .active_state = timer_active_state
  64 };