CComponents: add new header file cc_signals.h with some basic members

src/gui/components/cc_timer.cpp

@@ -0,0 +1,104 @@
+/*
+	Based up Neutrino-GUI - Tuxbox-Project
+	Copyright (C) 2001 by Steffen Hehn 'McClean'
+
+	Generic Timer.
+	Copyright (C) 2013, Thilo Graf 'dbt'
+
+	License: GPL
+
+	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, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <global.h>
+#include <neutrino.h>
+
+#include "cc_timer.h"
+#include <pthread.h>
+#include <errno.h>
+#include <system/helpers.h>
+
+using namespace std;
+
+CComponentsTimer::CComponentsTimer( const int& interval)
+{
+	tm_thread 		= 0;
+	tm_interval		= interval;
+	if (startTimer())
+		printf("[CComponentsTimer]    [%s]  timer started\n", __func__);
+}
+
+CComponentsTimer::~CComponentsTimer()
+{
+	if (stopTimer())
+		printf("[CComponentsTimer]    [%s]  timer stopped\n", __func__);
+}
+
+//thread handle
+void* CComponentsTimer::initTimerThread(void *arg)
+{
+	pthread_setcancelstate(PTHREAD_CANCEL_ENABLE,0);
+	pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS,0);
+
+	CComponentsTimer *timer = static_cast<CComponentsTimer*>(arg);
+
+	//start loop
+	while(timer) {
+		timer->OnTimer();
+		mySleep(timer->tm_interval);
+	}
+
+	return 0;
+}
+
+//start up running timer with own thread, return true on succses
+bool CComponentsTimer::startTimer()
+{
+	void *ptr = static_cast<void*>(this);
+
+	if(!tm_thread) {
+		int res = pthread_create (&tm_thread, NULL, initTimerThread, ptr) ;
+		if (res != 0){
+			printf("[CComponentsTimer]    [%s]  pthread_create  %s\n", __func__, strerror(errno));
+			return false;
+		}
+	}
+	printf("[CComponentsTimer]    [%s]  timer thread [%lu] created with interval = %d\n", __func__, tm_thread, tm_interval);
+	return  true;
+}
+
+//stop ticking timer and kill thread, return true on succses
+bool CComponentsTimer::stopTimer()
+{
+	int thres = 0;
+	if(tm_thread) {
+		thres = pthread_cancel(tm_thread);
+		printf("[CComponentsTimer]    [%s] waiting for timer thread terminate ...\n", __func__);
+		if (thres != 0)
+			printf("[CComponentsTimer]    [%s] pthread_cancel  %s\n", __func__, strerror(errno));
+		thres = pthread_join(tm_thread, NULL);
+		if (thres != 0)
+			printf("[CComponentsTimer]    [%s] pthread_join  %s\n", __func__, strerror(errno));
+	}
+	if (thres == 0){
+		tm_thread = 0;
+		return true;
+	}
+
+	return false;
+}