Add ZC_PING and CZ_PING packets

For supported packet version, from now server send ping packets to client.

2 files changed, 6 insertions, 2 deletions

diff --git a/src/common/socket.c b/src/common/socket.c
index faf57f412..dc5b06da0 100644
--- a/src/common/socket.c
+++ b/src/common/socket.c
@@ -488,11 +488,12 @@ static int send_from_fifo(int fd)
 		return 0;
 	}
 
-	if( len > 0 )
+	if (len > 0)
 	{
+		sockt->session[fd]->wdata_tick = sockt->last_tick;
 		// some data could not be transferred?
 		// shift unsent data to the beginning of the queue
-		if( (size_t)len < sockt->session[fd]->wdata_size )
+		if ((size_t)len < sockt->session[fd]->wdata_size)
 			memmove(sockt->session[fd]->wdata, sockt->session[fd]->wdata + len, sockt->session[fd]->wdata_size - len);
 
 		sockt->session[fd]->wdata_size -= len;
@@ -649,6 +650,7 @@ static int make_listen_bind(uint32 ip, uint16 port)
 	create_session(fd, sockt->connect_client, null_send, null_parse);
 	sockt->session[fd]->client_addr = 0; // just listens
 	sockt->session[fd]->rdata_tick = 0; // disable timeouts on this socket
+	sockt->session[fd]->wdata_tick = 0;
 	return fd;
 }
 
@@ -731,6 +733,7 @@ static int create_session(int fd, RecvFunc func_recv, SendFunc func_send, ParseF
 	sockt->session[fd]->func_send  = func_send;
 	sockt->session[fd]->func_parse = func_parse;
 	sockt->session[fd]->rdata_tick = sockt->last_tick;
+	sockt->session[fd]->wdata_tick = sockt->last_tick;
 	sockt->session[fd]->session_data = NULL;
 	sockt->session[fd]->hdata = NULL;
 	return 0;
diff --git a/src/common/socket.h b/src/common/socket.h
index 193b22645..b20b0b07e 100644
--- a/src/common/socket.h
+++ b/src/common/socket.h
@@ -130,6 +130,7 @@ struct socket_data {
 	size_t rdata_pos;
 	uint32 last_head_size;
 	time_t rdata_tick; // time of last recv (for detecting timeouts); zero when timeout is disabled
+	time_t wdata_tick; // time of last send (for detecting timeouts);
 
 	RecvFunc func_recv;
 	SendFunc func_send;