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-rw-r--r--src/event/IdleMonitor.cxx84
1 files changed, 84 insertions, 0 deletions
diff --git a/src/event/IdleMonitor.cxx b/src/event/IdleMonitor.cxx
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+++ b/src/event/IdleMonitor.cxx
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+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 "config.h"
+#include "IdleMonitor.hxx"
+#include "Loop.hxx"
+
+void
+IdleMonitor::Cancel()
+{
+ assert(loop.IsInside());
+
+ if (!IsActive())
+ return;
+
+#ifdef USE_EPOLL
+ active = false;
+ loop.RemoveIdle(*this);
+#else
+ g_source_remove(source_id);
+ source_id = 0;
+#endif
+}
+
+void
+IdleMonitor::Schedule()
+{
+ assert(loop.IsInside());
+
+ if (IsActive())
+ /* already scheduled */
+ return;
+
+#ifdef USE_EPOLL
+ active = true;
+ loop.AddIdle(*this);
+#else
+ source_id = loop.AddIdle(Callback, this);
+#endif
+}
+
+void
+IdleMonitor::Run()
+{
+ assert(loop.IsInside());
+
+#ifdef USE_EPOLL
+ assert(active);
+ active = false;
+#else
+ assert(source_id != 0);
+ source_id = 0;
+#endif
+
+ OnIdle();
+}
+
+#ifndef USE_EPOLL
+
+gboolean
+IdleMonitor::Callback(gpointer data)
+{
+ IdleMonitor &monitor = *(IdleMonitor *)data;
+ monitor.Run();
+ return false;
+}
+
+#endif