support reload the forwarder

@@ -83,7 +83,7 @@ vhost __defaultVhost__ {
 vhost dev {
     enabled         on;
     gop_cache       on;
-    #forward         127.0.0.1:19350;
+    forward         127.0.0.1:19350;
     hls {
         hls             off;
         hls_path        ./objs/nginx/html;

@@ -181,7 +181,7 @@ int SrsClient::service_cycle()
 	srs_trace("set chunk_size=%d success", chunk_size);
 	
 	// find a source to publish.
-	SrsSource* source = SrsSource::find(req->get_stream_url(), req->vhost);
+	SrsSource* source = SrsSource::find(req);
 	srs_assert(source != NULL);
 	
 	// check publish available.

@@ -32,6 +32,8 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <srs_core_handshake.hpp>
 #include <srs_core_config.hpp>
 
+using namespace std;
+
 /**
 * the signature for packets to client.
 */
@@ -75,6 +77,23 @@ SrsRequest::~SrsRequest()
 {
 }
 
+SrsRequest* SrsRequest::copy()
+{
+	SrsRequest* cp = new SrsRequest();
+	
+	cp->app = app;
+	cp->objectEncoding = objectEncoding;
+	cp->pageUrl = pageUrl;
+	cp->port = port;
+	cp->schema = schema;
+	cp->stream = stream;
+	cp->swfUrl = swfUrl;
+	cp->tcUrl = tcUrl;
+	cp->vhost = vhost;
+	
+	return cp;
+}
+
 int SrsRequest::discovery_app()
 {
 	int ret = ERROR_SUCCESS;
@@ -128,7 +147,7 @@ int SrsRequest::discovery_app()
 	return ret;
 }
 
-std::string SrsRequest::get_stream_url()
+string SrsRequest::get_stream_url()
 {
 	std::string url = "";
 	
@@ -148,7 +167,7 @@ void SrsRequest::strip()
 	trim(stream, "/ \n\r\t");
 }
 
-std::string& SrsRequest::trim(std::string& str, std::string chs)
+std::string& SrsRequest::trim(string& str, string chs)
 {
 	for (int i = 0; i < (int)chs.length(); i++) {
 		char ch = chs.at(i);
@@ -243,7 +262,7 @@ int SrsRtmpClient::handshake()
     return ret;
 }
 
-int SrsRtmpClient::connect_app(std::string app, std::string tc_url)
+int SrsRtmpClient::connect_app(string app, string tc_url)
 {
 	int ret = ERROR_SUCCESS;
 	
@@ -329,7 +348,7 @@ int SrsRtmpClient::create_stream(int& stream_id)
 	return ret;
 }
 
-int SrsRtmpClient::play(std::string stream, int stream_id)
+int SrsRtmpClient::play(string stream, int stream_id)
 {
 	int ret = ERROR_SUCCESS;
 
@@ -371,7 +390,7 @@ int SrsRtmpClient::play(std::string stream, int stream_id)
 	return ret;
 }
 
-int SrsRtmpClient::publish(std::string stream, int stream_id)
+int SrsRtmpClient::publish(string stream, int stream_id)
 {
 	int ret = ERROR_SUCCESS;
 
@@ -1045,7 +1064,7 @@ int SrsRtmp::start_flash_publish(int stream_id)
 	return ret;
 }
 
-int SrsRtmp::identify_create_stream_client(SrsCreateStreamPacket* req, int stream_id, SrsClientType& type, std::string& stream_name)
+int SrsRtmp::identify_create_stream_client(SrsCreateStreamPacket* req, int stream_id, SrsClientType& type, string& stream_name)
 {
 	int ret = ERROR_SUCCESS;
 	
@@ -1102,7 +1121,7 @@ int SrsRtmp::identify_create_stream_client(SrsCreateStreamPacket* req, int strea
 	return ret;
 }
 
-int SrsRtmp::identify_fmle_publish_client(SrsFMLEStartPacket* req, SrsClientType& type, std::string& stream_name)
+int SrsRtmp::identify_fmle_publish_client(SrsFMLEStartPacket* req, SrsClientType& type, string& stream_name)
 {
 	int ret = ERROR_SUCCESS;
 	
@@ -1126,7 +1145,7 @@ int SrsRtmp::identify_fmle_publish_client(SrsFMLEStartPacket* req, SrsClientType
 	return ret;
 }
 
-int SrsRtmp::identify_flash_publish_client(SrsPublishPacket* req, SrsClientType& type, std::string& stream_name)
+int SrsRtmp::identify_flash_publish_client(SrsPublishPacket* req, SrsClientType& type, string& stream_name)
 {
 	int ret = ERROR_SUCCESS;
 	

@@ -65,6 +65,13 @@ struct SrsRequest
 	
 	SrsRequest();
 	virtual ~SrsRequest();
+
+	/**
+	* deep copy the request, for source to use it to support reload,
+	* for when initialize the source, the request is valid,
+	* when reload it, the request maybe invalid, so need to copy it.
+	*/
+	virtual SrsRequest* copy();
 	
 	/**
 	* disconvery vhost/app from tcUrl.

@@ -345,21 +345,22 @@ int SrsGopCache::dump(SrsConsumer* consumer, int tba, int tbv)
 
 std::map<std::string, SrsSource*> SrsSource::pool;
 
-SrsSource* SrsSource::find(string stream_url, string vhost)
+SrsSource* SrsSource::find(SrsRequest* req)
 {
+	string stream_url = req->get_stream_url();
+	string vhost = req->vhost;
+	
 	if (pool.find(stream_url) == pool.end()) {
-		pool[stream_url] = new SrsSource(stream_url, vhost);
-		srs_verbose("create new source for "
-			"url=%s, vhost=%s", stream_url.c_str(), vhost.c_str());
+		pool[stream_url] = new SrsSource(req);
+		srs_verbose("create new source for url=%s, vhost=%s", stream_url.c_str(), vhost.c_str());
 	}
 	
 	return pool[stream_url];
 }
 
-SrsSource::SrsSource(string _stream_url, string _vhost)
+SrsSource::SrsSource(SrsRequest* _req)
 {
-	stream_url = _stream_url;
-	vhost = _vhost;
+	req = _req->copy();
 	
 #ifdef SRS_HLS
 	hls = new SrsHls();
@@ -412,13 +413,15 @@ SrsSource::~SrsSource()
 #ifdef SRS_FFMPEG
 	srs_freep(encoder);
 #endif
+
+	srs_freep(req);
 }
 
-int SrsSource::on_reload_gop_cache(string _vhost)
+int SrsSource::on_reload_gop_cache(string vhost)
 {
 	int ret = ERROR_SUCCESS;
 	
-	if (vhost != _vhost) {
+	if (req->vhost != vhost) {
 		return ret;
 	}
 	
@@ -426,13 +429,32 @@ int SrsSource::on_reload_gop_cache(string _vhost)
 	bool enabled_cache = config->get_gop_cache(vhost);
 	
 	srs_trace("vhost %s gop_cache changed to %d, source url=%s", 
-		vhost.c_str(), enabled_cache, stream_url.c_str());
+		vhost.c_str(), enabled_cache, req->get_stream_url().c_str());
 	
 	set_cache(enabled_cache);
 	
 	return ret;
 }
 
+int SrsSource::on_reload_forward(string vhost)
+{
+	int ret = ERROR_SUCCESS;
+	
+	if (req->vhost != vhost) {
+		return ret;
+	}
+
+	// forwarders
+	destroy_forwarders();
+	if ((ret = create_forwarders()) != ERROR_SUCCESS) {
+		srs_error("create forwarders failed. ret=%d", ret);
+		return ret;
+	}
+	srs_trace("vhost %s forwarders reload success", vhost.c_str());
+	
+	return ret;
+}
+
 bool SrsSource::can_publish()
 {
 	return _can_publish;
@@ -656,31 +678,23 @@ int SrsSource::on_video(SrsCommonMessage* video)
 	return ret;
 }
 
-int SrsSource::on_publish(SrsRequest* req)
+int SrsSource::on_publish(SrsRequest* _req)
 {
 	int ret = ERROR_SUCCESS;
 	
+	// update the request object.
+	srs_freep(req);
+	req = _req->copy();
+	srs_assert(req);
+	
 	_can_publish = false;
-
-	// TODO: support reload.
 	
 	// create forwarders
-	SrsConfDirective* conf = config->get_forward(req->vhost);
-	for (int i = 0; conf && i < (int)conf->args.size(); i++) {
-		std::string forward_server = conf->args.at(i);
-		
-		SrsForwarder* forwarder = new SrsForwarder();
-		forwarders.push_back(forwarder);
-		
-		if ((ret = forwarder->on_publish(req, forward_server)) != ERROR_SUCCESS) {
-			srs_error("start forwarder failed. "
-				"vhost=%s, app=%s, stream=%s, forward-to=%s",
-				req->vhost.c_str(), req->app.c_str(), req->stream.c_str(),
-				forward_server.c_str());
-			return ret;
-		}
+	if ((ret = create_forwarders()) != ERROR_SUCCESS) {
+		srs_error("create forwarders failed. ret=%d", ret);
+		return ret;
 	}
-
+	
 #ifdef SRS_FFMPEG
 	if ((ret = encoder->on_publish(req)) != ERROR_SUCCESS) {
 		return ret;
@@ -698,14 +712,8 @@ int SrsSource::on_publish(SrsRequest* req)
 
 void SrsSource::on_unpublish()
 {
-	// close all forwarders
-	std::vector<SrsForwarder*>::iterator it;
-	for (it = forwarders.begin(); it != forwarders.end(); ++it) {
-		SrsForwarder* forwarder = *it;
-		forwarder->on_unpublish();
-		srs_freep(forwarder);
-	}
-	forwarders.clear();
+	// destroy all forwarders
+	destroy_forwarders();
 
 #ifdef SRS_FFMPEG
 	encoder->on_unpublish();
@@ -776,3 +784,37 @@ void SrsSource::set_cache(bool enabled)
 	gop_cache->set(enabled);
 }
 
+int SrsSource::create_forwarders()
+{
+	int ret = ERROR_SUCCESS;
+	
+	SrsConfDirective* conf = config->get_forward(req->vhost);
+	for (int i = 0; conf && i < (int)conf->args.size(); i++) {
+		std::string forward_server = conf->args.at(i);
+		
+		SrsForwarder* forwarder = new SrsForwarder();
+		forwarders.push_back(forwarder);
+		
+		if ((ret = forwarder->on_publish(req, forward_server)) != ERROR_SUCCESS) {
+			srs_error("start forwarder failed. "
+				"vhost=%s, app=%s, stream=%s, forward-to=%s",
+				req->vhost.c_str(), req->app.c_str(), req->stream.c_str(),
+				forward_server.c_str());
+			return ret;
+		}
+	}
+
+	return ret;
+}
+
+void SrsSource::destroy_forwarders()
+{
+	std::vector<SrsForwarder*>::iterator it;
+	for (it = forwarders.begin(); it != forwarders.end(); ++it) {
+		SrsForwarder* forwarder = *it;
+		forwarder->on_unpublish();
+		srs_freep(forwarder);
+	}
+	forwarders.clear();
+}
+

@@ -167,15 +167,14 @@ private:
 public:
 	/**
 	* find stream by vhost/app/stream.
-	* @param stream_url the stream url, for example, myserver.xxx.com/app/stream
-	* @param vhost the vhost to constructor the object.
+	* @param req the client request.
 	* @return the matched source, never be NULL.
 	* @remark stream_url should without port and schema.
 	*/
-	static SrsSource* find(std::string stream_url, std::string vhost);
+	static SrsSource* find(SrsRequest* req);
 private:
-	std::string vhost;
-	std::string stream_url;
+	// deep copy of client request.
+	SrsRequest* req;
 	// to delivery stream to clients.
 	std::vector<SrsConsumer*> consumers;
 	// hls handler.
@@ -210,22 +209,35 @@ private:
 	// the cached audio sequence header.
 	SrsSharedPtrMessage* cache_sh_audio;
 public:
-	SrsSource(std::string _stream_url, std::string _vhost);
+	/**
+	* @param _req the client request object, 
+	* 	this object will deep copy it for reload.
+	*/
+	SrsSource(SrsRequest* _req);
 	virtual ~SrsSource();
 // interface ISrsReloadHandler
 public:
-	virtual int on_reload_gop_cache(std::string _vhost);
+	virtual int on_reload_gop_cache(std::string vhost);
+	virtual int on_reload_forward(std::string vhost);
 public:
 	virtual bool can_publish();
 	virtual int on_meta_data(SrsCommonMessage* msg, SrsOnMetaDataPacket* metadata);
 	virtual int on_audio(SrsCommonMessage* audio);
 	virtual int on_video(SrsCommonMessage* video);
-	virtual int on_publish(SrsRequest* req);
+	/**
+	* publish stream event notify.
+	* @param _req the request from client, the source will deep copy it,
+	* 		for when reload the request of client maybe invalid.
+	*/
+	virtual int on_publish(SrsRequest* _req);
 	virtual void on_unpublish();
 public:
 	virtual int create_consumer(SrsConsumer*& consumer);
 	virtual void on_consumer_destroy(SrsConsumer* consumer);
 	virtual void set_cache(bool enabled);
+private:
+	virtual int create_forwarders();
+	virtual void destroy_forwarders();
 };
 
 #endif
\ No newline at end of file