diff --git a/trunk/src/libs/srs_lib_simple_socket.cpp b/trunk/src/libs/srs_lib_simple_socket.cpp
index df2373d6a..50715e14f 100644
--- a/trunk/src/libs/srs_lib_simple_socket.cpp
+++ b/trunk/src/libs/srs_lib_simple_socket.cpp
@@ -30,10 +30,21 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
+#include <errno.h>
+#include <sys/uio.h>
+
+#ifndef ST_UTIME_NO_TIMEOUT
+	#define ST_UTIME_NO_TIMEOUT -1
+#endif
 
 SimpleSocketStream::SimpleSocketStream()
 {
 	fd = -1;
+	send_timeout = recv_timeout = ST_UTIME_NO_TIMEOUT;
+	recv_bytes = send_bytes = 0;
+	
+	srs_update_system_time_ms();
+	start_time_ms = srs_get_system_time_ms();
 }
 
 SimpleSocketStream::~SimpleSocketStream()
@@ -71,70 +82,149 @@ int SimpleSocketStream::connect(const char* server_ip, int port)
 int SimpleSocketStream::read(const void* buf, size_t size, ssize_t* nread)
 {
 	int ret = ERROR_SUCCESS;
+	
+	*nread = ::recv(fd, (void*)buf, size, 0);
+    
+    // On success a non-negative integer indicating the number of bytes actually read is returned 
+    // (a value of 0 means the network connection is closed or end of file is reached).
+    if (*nread <= 0) {
+		if (errno == ETIME) {
+			return ERROR_SOCKET_TIMEOUT;
+		}
+		
+        if (*nread == 0) {
+            errno = ECONNRESET;
+        }
+        
+        return ERROR_SOCKET_READ;
+    }
+    
+    recv_bytes += *nread;
+	
 	return ret;
 }
 
 // ISrsProtocolReader
 void SimpleSocketStream::set_recv_timeout(int64_t timeout_us)
 {
+	recv_timeout = timeout_us;
 }
 
 int64_t SimpleSocketStream::get_recv_timeout()
 {
-	return -1;
+	return recv_timeout;
 }
 
 int64_t SimpleSocketStream::get_recv_bytes()
 {
-	return 0;
+	return recv_bytes;
 }
 
 int SimpleSocketStream::get_recv_kbps()
 {
-	return 0;
+	srs_update_system_time_ms();
+	int64_t diff_ms = srs_get_system_time_ms() - start_time_ms;
+	
+	if (diff_ms <= 0) {
+		return 0;
+	}
+	
+	return recv_bytes * 8 / diff_ms;
 }
 
 // ISrsProtocolWriter
 void SimpleSocketStream::set_send_timeout(int64_t timeout_us)
 {
+	send_timeout = timeout_us;
 }
 
 int64_t SimpleSocketStream::get_send_timeout()
 {
-	return -1;
+	return send_timeout;
 }
 
 int64_t SimpleSocketStream::get_send_bytes()
 {
-	return 0;
+	return send_bytes;
 }
 
 int SimpleSocketStream::get_send_kbps()
 {
-	return 0;
+	srs_update_system_time_ms();
+	int64_t diff_ms = srs_get_system_time_ms() - start_time_ms;
+	
+	if (diff_ms <= 0) {
+		return 0;
+	}
+	
+	return send_bytes * 8 / diff_ms;
 }
 
 int SimpleSocketStream::writev(const iovec *iov, int iov_size, ssize_t* nwrite)
 {
 	int ret = ERROR_SUCCESS;
+    
+    *nwrite = ::writev(fd, iov, iov_size);
+    
+    if (*nwrite <= 0) {
+		if (errno == ETIME) {
+			return ERROR_SOCKET_TIMEOUT;
+		}
+		
+        return ERROR_SOCKET_WRITE;
+    }
+    
+    send_bytes += *nwrite;
+    
 	return ret;
 }
 
 // ISrsProtocolReaderWriter
 bool SimpleSocketStream::is_never_timeout(int64_t timeout_us)
 {
-	return true;
+	return timeout_us == (int64_t)ST_UTIME_NO_TIMEOUT;
 }
 
 int SimpleSocketStream::read_fully(const void* buf, size_t size, ssize_t* nread)
 {
 	int ret = ERROR_SUCCESS;
+	
+	size_t left = size;
+	*nread = 0;
+	
+	while (left > 0) {
+		char* this_buf = (char*)buf + *nread;
+		ssize_t this_nread;
+		
+		if ((ret = this->read(this_buf, left, &this_nread)) != ERROR_SUCCESS) {
+			return ret;
+		}
+		
+		*nread += this_nread;
+		left -= this_nread;
+	}
+    
+    recv_bytes += *nread;
+	
 	return ret;
 }
 
 int SimpleSocketStream::write(const void* buf, size_t size, ssize_t* nwrite)
 {
 	int ret = ERROR_SUCCESS;
+    
+    *nwrite = ::send(fd, (void*)buf, size, 0);
+    
+    if (*nwrite <= 0) {
+		if (errno == ETIME) {
+			return ERROR_SOCKET_TIMEOUT;
+		}
+		
+        return ERROR_SOCKET_WRITE;
+    }
+    
+    send_bytes += *nwrite;
+    
 	return ret;
 }
 
diff --git a/trunk/src/libs/srs_lib_simple_socket.hpp b/trunk/src/libs/srs_lib_simple_socket.hpp
index 99034e49d..a2740afc0 100644
--- a/trunk/src/libs/srs_lib_simple_socket.hpp
+++ b/trunk/src/libs/srs_lib_simple_socket.hpp
@@ -39,6 +39,11 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 class SimpleSocketStream : public ISrsProtocolReaderWriter
 {
 private:
+	int64_t start_time_ms;
+	int64_t recv_timeout;
+	int64_t send_timeout;
+	int64_t recv_bytes;
+	int64_t send_bytes;
 	int fd;
 public:
     SimpleSocketStream();