power_daemon: added lid_monitor.

Thanks Rene!

src/servers/power/lid_monitor.cpp

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2013, Jérôme Duval, [email protected].
+ * Copyright 2005, Nathan Whitehorn.
+ *
+ * Distributed under the terms of the MIT License.
+ */
+
+
+#include "lid_monitor.h"
+
+#include <Messenger.h>
+#include <Roster.h>
+
+#include <stdio.h>
+
+#include <RosterPrivate.h>
+
+
+LidMonitor::LidMonitor()
+{
+	fFD = open("/dev/power/acpi_lid/0", O_RDONLY);
+}
+
+
+LidMonitor::~LidMonitor()
+{
+	if (fFD > 0)
+		close(fFD);
+}
+
+
+void
+LidMonitor::HandleEvent()
+{
+	if (fFD <= 0)
+		return;
+
+	uint8 status;
+	read(fFD, &status, 1);
+
+	if (status == 1) {
+		printf("lid status 1\n");
+	}
+}

src/servers/power/lid_monitor.h

@@ -0,0 +1,25 @@
+/*
+ * Copyright 2005-2013, Haiku, Inc.
+ * Distributed under the terms of the MIT license.
+ *
+ * Authors:
+ *		Nathan Whitehorn
+ */
+#ifndef _LID_MONITOR_H
+#define _LID_MONITOR_H
+
+
+class LidMonitor {
+public:
+								LidMonitor();
+			 					~LidMonitor();
+
+			void				HandleEvent();
+
+			int					FD() const { return fFD; }
+private:
+			int					fFD;
+};
+
+
+#endif // _LID_MONITOR_H