refine the forwarder

@@ -32,34 +32,34 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 SrsForwarder::SrsForwarder()
 {
 	client = new SrsRtmpClient();
-	port = 1935;
 	tid = NULL;
 	loop = false;
 }
 
 SrsForwarder::~SrsForwarder()
 {
-	srs_freep(client);
-	
 	if (tid) {
 		loop = false;
 		st_thread_interrupt(tid);
 		st_thread_join(tid, NULL);
 		tid = NULL;
 	}
+	
+	srs_freep(client);
 }
 
 int SrsForwarder::on_publish(std::string vhost, std::string app, std::string stream, std::string forward_server)
 {
 	int ret = ERROR_SUCCESS;
 	
-	tc_url = "rtmp://";
+	std::string tc_url = "rtmp://";
 	tc_url += vhost;
 	tc_url += "/";
 	tc_url += app;
 	
-	stream_name = stream;
-	server = forward_server;
+	std::string stream_name = stream;
+	std::string server = forward_server;
+	int port = 1935;
 	
 	size_t pos = forward_server.find(":");
 	if (pos != std::string::npos) {

@@ -31,6 +31,8 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 #include <string>
 
+#include <st.h>
+
 class SrsSharedPtrMessage;
 class SrsOnMetaDataPacket;
 class SrsRtmpClient;
@@ -45,9 +47,11 @@ private:
 	std::string stream_name;
 	std::string server;
 	int port;
-	SrsRtmpClient* client;
+private:
 	st_thread_t tid;
 	bool loop;
+private:
+	SrsRtmpClient* client;
 public:
 	SrsForwarder();
 	virtual ~SrsForwarder();

@@ -23,6 +23,11 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 #include <srs_core_rtmp.hpp>
 
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+
 #include <srs_core_log.hpp>
 #include <srs_core_error.hpp>
 #include <srs_core_socket.hpp>
@@ -181,6 +186,34 @@ SrsRtmpClient::~SrsRtmpClient()
 	}
 }
 
+int SrsRtmpClient::connect_to(std::string server, int port)
+{
+	int ret = ERROR_SUCCESS;
+	return ret;
+}
+
+std::string SrsRtmpClient::parse_server(std::string host){
+    if(inet_addr(host.c_str()) != INADDR_NONE){
+        return host;
+    }
+    
+    hostent* answer = gethostbyname(host.c_str());
+    if(answer == NULL){
+        srs_error("dns resolve host %s error.", host.c_str());
+        return "";
+    }
+    
+    char ipv4[16];
+    memset(ipv4, 0, sizeof(ipv4));
+    for(int i = 0; i < answer->h_length; i++){
+        inet_ntop(AF_INET, answer->h_addr_list[i], ipv4, sizeof(ipv4));
+        srs_info("dns resolve host %s to %s.", host.c_str(), ipv4);
+        break;
+    }
+    
+    return ipv4;
+}
+
 SrsRtmp::SrsRtmp(st_netfd_t client_stfd)
 {
 	protocol = new SrsProtocol(client_stfd);

@@ -40,6 +40,8 @@ class SrsCommonMessage;
 class SrsCreateStreamPacket;
 class SrsFMLEStartPacket;
 class SrsPublishPacket;
+class SrsSharedPtrMessage;
+class SrsOnMetaDataPacket;
 
 /**
 * the original request from client.
@@ -102,6 +104,9 @@ private:
 public:
 	SrsRtmpClient();
 	virtual ~SrsRtmpClient();
+private:
+	virtual int connect_to(std::string server, int port);
+	std::string parse_server(std::string host);
 };
 
 /**

@@ -618,7 +618,7 @@ int SrsSource::on_publish(std::string vhost, std::string app, std::string stream
 	
 	// create forwarders
 	SrsConfDirective* conf = config->get_forward(vhost);
-	for (int i = 0; conf && i < conf->args.size(); i++) {
+	for (int i = 0; conf && i < (int)conf->args.size(); i++) {
 		std::string forward_server = conf->args.at(i);
 		
 		SrsForwarder* forwarder = new SrsForwarder();