final the modularity, rename the app module.

trunk/src/app/srs_app_thread.cpp

@@ -0,0 +1,161 @@
+/*
+The MIT License (MIT)
+
+Copyright (c) 2013-2014 winlin
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#include <srs_app_thread.hpp>
+
+#include <srs_kernel_error.hpp>
+#include <srs_kernel_log.hpp>
+
+ISrsThreadHandler::ISrsThreadHandler()
+{
+}
+
+ISrsThreadHandler::~ISrsThreadHandler()
+{
+}
+
+void ISrsThreadHandler::on_enter_loop()
+{
+}
+
+int ISrsThreadHandler::on_before_cycle()
+{
+	int ret = ERROR_SUCCESS;
+	return ret;
+}
+
+int ISrsThreadHandler::on_end_cycle()
+{
+	int ret = ERROR_SUCCESS;
+	return ret;
+}
+
+void ISrsThreadHandler::on_leave_loop()
+{
+}
+
+SrsThread::SrsThread(ISrsThreadHandler* thread_handler, int64_t interval_us)
+{
+	handler = thread_handler;
+	cycle_interval_us = interval_us;
+	
+	tid = NULL;
+	loop = false;
+}
+
+SrsThread::~SrsThread()
+{
+	stop();
+}
+
+int SrsThread::start()
+{
+	int ret = ERROR_SUCCESS;
+	
+    if(tid) {
+        srs_info("thread already running.");
+        return ret;
+    }
+    
+    if((tid = st_thread_create(thread_fun, this, 1, 0)) == NULL){
+		ret = ERROR_ST_CREATE_CYCLE_THREAD;
+        srs_error("st_thread_create failed. ret=%d", ret);
+        return ret;
+    }
+    
+    return ret;
+}
+
+void SrsThread::stop()
+{
+	if (tid) {
+		loop = false;
+		
+		// the interrupt will cause the socket to read/write error,
+		// which will terminate the cycle thread.
+		st_thread_interrupt(tid);
+		
+		// wait the thread to exit.
+		st_thread_join(tid, NULL);
+		
+		tid = NULL;
+	}
+}
+
+bool SrsThread::can_loop()
+{
+	return loop;
+}
+
+void SrsThread::thread_cycle()
+{
+	int ret = ERROR_SUCCESS;
+	
+	srs_assert(handler);
+	
+	_srs_context->generate_id();
+	srs_trace("thread cycle start");
+
+	handler->on_end_cycle();
+	
+	loop = true;
+	while (loop) {
+		if ((ret = handler->on_before_cycle()) != ERROR_SUCCESS) {
+			srs_warn("thread on before cycle failed, ignored and retry, ret=%d", ret);
+			goto failed;
+		}
+		srs_info("thread on before cycle success");
+		
+		if ((ret = handler->cycle()) != ERROR_SUCCESS) {
+			srs_warn("thread cycle failed, ignored and retry, ret=%d", ret);
+			goto failed;
+		}
+		srs_info("thread cycle success");
+		
+		if ((ret = handler->on_end_cycle()) != ERROR_SUCCESS) {
+			srs_warn("thread on end cycle failed, ignored and retry, ret=%d", ret);
+			goto failed;
+		}
+		srs_info("thread on end cycle success");
+
+failed:
+		if (!loop) {
+			break;
+		}
+		
+		st_usleep(cycle_interval_us);
+	}
+	
+	handler->on_leave_loop();
+	srs_trace("thread cycle finished");
+}
+
+void* SrsThread::thread_fun(void* arg)
+{
+	SrsThread* obj = (SrsThread*)arg;
+	srs_assert(obj);
+	
+	obj->thread_cycle();
+	
+	return NULL;
+}