*fix* added missing files

diff --git a/src/util/timer.c b/src/util/timer.c
new file mode 100644 (file)
index 0000000..59064dd
--- /dev/null
+++ b/src/util/timer.c
@@ -0,0 +1,67 @@
+/**************************************************************************
+*
+* Copyright (C) 2009 Andreas.Fink (Andreas.Fink85@gmail.com)
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License version 2
+* as published by the Free Software Foundation.
+*
+* This program 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 General Public License for more details.
+* You should have received a copy of the GNU General Public License
+* along with this program; if not, write to the Free Software
+* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+**************************************************************************/
+
+#include <sys/timerfd.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "timer.h"
+
+GSList* timer_list = 0;
+
+int install_timer(int value_sec, int value_nsec, int interval_sec, int interval_nsec, void (*_callback)())
+{
+       if ( value_sec < 0 || interval_sec < 0 )
+               return -1;
+
+       int timer_fd;
+       struct itimerspec timer;
+       timer.it_value = (struct timespec){ .tv_sec=value_sec, .tv_nsec=value_nsec };
+       timer.it_interval = (struct timespec){ .tv_sec=interval_sec, .tv_nsec=interval_nsec };
+       timer_fd = timerfd_create(CLOCK_MONOTONIC, 0);
+       timerfd_settime(timer_fd, 0, &timer, 0);
+       struct timer* t = malloc(sizeof(struct timer));
+       t->id=timer_fd;
+       t->_callback = _callback;
+       timer_list = g_slist_prepend(timer_list, t);
+       return timer_fd;
+}
+
+
+void reset_timer(int id, int value_sec, int value_nsec, int interval_sec, int interval_nsec)
+{
+       struct itimerspec timer;
+       timer.it_value = (struct timespec){ .tv_sec=value_sec, .tv_nsec=value_nsec };
+       timer.it_interval = (struct timespec){ .tv_sec=interval_sec, .tv_nsec=interval_nsec };
+       timerfd_settime(id, 0, &timer, 0);
+}
+
+
+void uninstall_timer(int id)
+{
+       close(id);
+       GSList* timer_iter = timer_list;
+       while (timer_iter) {
+               struct timer* t = timer_iter->data;
+               if (t->id == id) {
+                       timer_list = g_slist_remove(timer_list, t);
+                       free(t);
+                       return;
+               }
+               timer_iter = timer_iter->next;
+       }
+}

diff --git a/src/util/timer.h b/src/util/timer.h
new file mode 100644 (file)
index 0000000..fae0203
--- /dev/null
+++ b/src/util/timer.h
@@ -0,0 +1,48 @@
+/**************************************************************************
+*
+* Copyright (C) 2009 Andreas.Fink (Andreas.Fink85@gmail.com)
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License version 2
+* as published by the Free Software Foundation.
+*
+* This program 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 General Public License for more details.
+* You should have received a copy of the GNU General Public License
+* along with this program; if not, write to the Free Software
+* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+**************************************************************************/
+
+
+#ifndef TIMER_H
+#define TIMER_H
+
+#include <glib.h>
+
+extern GSList* timer_list;
+
+
+struct timer {
+       int id;
+       void (*_callback)();
+};
+
+
+// timer functions
+/** installs a timer with the first timeout 'value_sec' and then a periodic timeout with interval_sec
+       * '_callback' is the callback function when the timer reaches the timeout.
+       * If 'value_sec' == 0 then the timer is disabled (but not uninstalled)
+       * If 'interval_sec' == 0 the timer is a single shot timer, ie. no periodic timeout occur
+       * returns the 'id' of the timer, which is needed for uninstalling the timer **/
+int install_timer(int value_sec, int value_nsec, int interval_sec, int interval_nsec, void (*_callback)());
+
+/** resets a timer to the new values. If 'id' does not exist nothing happens.
+       * If value_sec == 0 the timer is stopped **/
+void reset_timer(int id, int value_sec, int value_nsec, int interval_sec, int interval_nsec);
+
+/** uninstalls a timer with the given 'id'. If no timer is installed with this id nothing happens **/
+void uninstall_timer(int id);
+
+#endif // TIMER_H