introduce this param in callback fix server close on client socket

Signed-off-by: Andy Green <andy@warmcat.com>
diff --git a/lib/client-handshake.c b/lib/client-handshake.c
index e219450..df91923 100644
--- a/lib/client-handshake.c
+++ b/lib/client-handshake.c
@@ -498,7 +498,7 @@
 	this->fds[this->fds_count++].events = POLLIN;
 
 	/* external POLL support via protocol 0 */
-	this->protocols[0].callback(wsi,
+	this->protocols[0].callback(this, wsi,
 		LWS_CALLBACK_ADD_POLL_FD,
 		(void *)(long)wsi->sock, NULL, POLLIN);
 
@@ -510,7 +510,7 @@
 
 	/* call him back to inform him he is up */
 
-	wsi->protocol->callback(wsi,
+	wsi->protocol->callback(this, wsi,
 			 LWS_CALLBACK_CLIENT_ESTABLISHED,
 			 wsi->user_space,
 			 NULL, 0);
diff --git a/lib/handshake.c b/lib/handshake.c
index 1ba4b92..90219a2 100644
--- a/lib/handshake.c
+++ b/lib/handshake.c
@@ -208,7 +208,8 @@
 	/* notify user code that we're ready to roll */
 
 	if (wsi->protocol->callback)
-		wsi->protocol->callback(wsi, LWS_CALLBACK_ESTABLISHED,
+		wsi->protocol->callback(wsi->protocol->owning_server,
+				wsi, LWS_CALLBACK_ESTABLISHED,
 					  wsi->user_space, NULL, 0);
 
 	return 0;
@@ -398,7 +399,8 @@
 	/* notify user code that we're ready to roll */
 
 	if (wsi->protocol->callback)
-		wsi->protocol->callback(wsi, LWS_CALLBACK_ESTABLISHED,
+		wsi->protocol->callback(wsi->protocol->owning_server,
+				wsi, LWS_CALLBACK_ESTABLISHED,
 					  wsi->user_space, NULL, 0);
 
 	return 0;
@@ -484,7 +486,7 @@
 		if (!wsi->utf8_token[WSI_TOKEN_UPGRADE].token_len ||
 			     !wsi->utf8_token[WSI_TOKEN_CONNECTION].token_len) {
 			if (wsi->protocol->callback)
-				(wsi->protocol->callback)(wsi,
+				(wsi->protocol->callback)(this, wsi,
 				   LWS_CALLBACK_HTTP, wsi->user_space,
 				   wsi->utf8_token[WSI_TOKEN_GET_URI].token, 0);
 			wsi->state = WSI_STATE_HTTP;
@@ -538,7 +540,7 @@
 		 * have the opportunity to deny it
 		 */
 
-		if ((wsi->protocol->callback)(wsi,
+		if ((wsi->protocol->callback)(wsi->protocol->owning_server, wsi,
 				LWS_CALLBACK_FILTER_PROTOCOL_CONNECTION,
 						&wsi->utf8_token[0], NULL, 0)) {
 			fprintf(stderr, "User code denied connection\n");
diff --git a/lib/libwebsockets.c b/lib/libwebsockets.c
index d4db3f3..ec1e482 100644
--- a/lib/libwebsockets.c
+++ b/lib/libwebsockets.c
@@ -80,15 +80,16 @@
 						       struct libwebsocket *wsi)
 {
 	int n;
+	int old_state;
 	unsigned char buf[LWS_SEND_BUFFER_PRE_PADDING + 2 +
 						  LWS_SEND_BUFFER_POST_PADDING];
 
 	if (!wsi)
 		return;
 
-	n = wsi->state;
+	old_state = wsi->state;
 
-	if (n == WSI_STATE_DEAD_SOCKET)
+	if (old_state == WSI_STATE_DEAD_SOCKET)
 		return;
 
 	/* remove this fd from wsi mapping hashtable */
@@ -111,7 +112,7 @@
 
 	/* remove also from external POLL support via protocol 0 */
 
-	this->protocols[0].callback(wsi,
+	this->protocols[0].callback(this, wsi,
 		    LWS_CALLBACK_DEL_POLL_FD, (void *)(long)wsi->sock, NULL, 0);
 
 	/*
@@ -122,7 +123,7 @@
 	 * WSI_STATE_RETURNED_CLOSE_ALREADY and we will skip this
 	 */
 
-	if (n == WSI_STATE_ESTABLISHED)
+	if (old_state == WSI_STATE_ESTABLISHED)
 		libwebsocket_write(wsi, &buf[LWS_SEND_BUFFER_PRE_PADDING], 0,
 							       LWS_WRITE_CLOSE);
 
@@ -130,8 +131,8 @@
 
 	/* tell the user it's all over for this guy */
 
-	if (wsi->protocol->callback && n == WSI_STATE_ESTABLISHED)
-		wsi->protocol->callback(wsi, LWS_CALLBACK_CLOSED,
+	if (wsi->protocol->callback && old_state == WSI_STATE_ESTABLISHED)
+		wsi->protocol->callback(this, wsi, LWS_CALLBACK_CLOSED,
 						      wsi->user_space, NULL, 0);
 
 	/* free up his allocations */
@@ -317,7 +318,7 @@
 		 * yet so we issue this to protocols[0]
 		 */
 
-		if ((this->protocols[0].callback)(wsi,
+		if ((this->protocols[0].callback)(this, wsi,
 				LWS_CALLBACK_FILTER_NETWORK_CONNECTION,
 					     (void*)(long)accept_fd, NULL, 0)) {
 			fprintf(stderr, "Callback denied network connection\n");
@@ -420,7 +421,7 @@
 		this->fds[this->fds_count++].fd = accept_fd;
 
 		/* external POLL support via protocol 0 */
-		this->protocols[0].callback(new_wsi,
+		this->protocols[0].callback(this, new_wsi,
 			LWS_CALLBACK_ADD_POLL_FD,
 			(void *)(long)accept_fd, NULL, POLLIN);
 
@@ -469,7 +470,7 @@
 		this->fds[this->fds_count++].fd = accept_fd;
 
 		/* external POLL support via protocol 0 */
-		this->protocols[0].callback(new_wsi,
+		this->protocols[0].callback(this, new_wsi,
 			LWS_CALLBACK_ADD_POLL_FD,
 			(void *)(long)accept_fd, NULL, POLLIN);
 
@@ -497,11 +498,11 @@
 			pollfd->events &= ~POLLOUT;
 
 			/* external POLL support via protocol 0 */
-			this->protocols[0].callback(wsi,
+			this->protocols[0].callback(this, wsi,
 				LWS_CALLBACK_CLEAR_MODE_POLL_FD,
 				(void *)(long)wsi->sock, NULL, POLLOUT);
 
-			wsi->protocol->callback(wsi,
+			wsi->protocol->callback(this, wsi,
 				LWS_CALLBACK_CLIENT_WRITEABLE,
 				wsi->user_space,
 				NULL, 0);
@@ -553,7 +554,7 @@
 
 				/* broadcast it to this connection */
 
-				new_wsi->protocol->callback(new_wsi,
+				new_wsi->protocol->callback(this, new_wsi,
 					LWS_CALLBACK_BROADCAST,
 					new_wsi->user_space,
 					buf + LWS_SEND_BUFFER_PRE_PADDING, len);
@@ -568,7 +569,7 @@
 
 		if (pollfd->revents & (POLLERR | POLLHUP)) {
 
-			debug("Session Socket %p (fd=%d) dead\n",
+			fprintf(stderr, "Session Socket %p (fd=%d) dead\n",
 				(void *)wsi, pollfd->fd);
 
 			libwebsocket_close_and_free_session(this, wsi);
@@ -582,11 +583,11 @@
 			pollfd->events &= ~POLLOUT;
 
 			/* external POLL support via protocol 0 */
-			this->protocols[0].callback(wsi,
+			this->protocols[0].callback(this, wsi,
 				LWS_CALLBACK_CLEAR_MODE_POLL_FD,
 				(void *)(long)wsi->sock, NULL, POLLOUT);
 
-			wsi->protocol->callback(wsi,
+			wsi->protocol->callback(this, wsi,
 				LWS_CALLBACK_CLIENT_WRITEABLE,
 				wsi->user_space,
 				NULL, 0);
@@ -713,7 +714,7 @@
 	if (n == 0) /* poll timeout */
 		return 0;
 
-	if (n < 0 || this->fds[0].revents & (POLLERR | POLLHUP)) {
+	if (n < 0) {
 		/*
 		fprintf(stderr, "Listen Socket dead\n");
 		*/
@@ -738,9 +739,9 @@
  */
 
 int
-libwebsocket_callback_on_writable(struct libwebsocket *wsi)
+libwebsocket_callback_on_writable(struct libwebsocket_context *this,
+						       struct libwebsocket *wsi)
 {
-	struct libwebsocket_context *this = wsi->protocol->owning_server;
 	int n;
 
 	for (n = 0; n < this->fds_count; n++)
@@ -750,7 +751,7 @@
 		}
 
 	/* external POLL support via protocol 0 */
-	this->protocols[0].callback(wsi,
+	this->protocols[0].callback(this, wsi,
 		LWS_CALLBACK_SET_MODE_POLL_FD,
 		(void *)(long)wsi->sock, NULL, POLLOUT);
 
@@ -782,7 +783,7 @@
 			wsi = this->fd_hashtable[n].wsi[m];
 
 			if (wsi->protocol == protocol)
-				libwebsocket_callback_on_writable(wsi);
+				libwebsocket_callback_on_writable(this, wsi);
 		}
 	}
 
@@ -833,12 +834,12 @@
 
 	if (enable)
 		/* external POLL support via protocol 0 */
-		this->protocols[0].callback(wsi,
+		this->protocols[0].callback(this, wsi,
 			LWS_CALLBACK_SET_MODE_POLL_FD,
 			(void *)(long)wsi->sock, NULL, POLLIN);
 	else
 		/* external POLL support via protocol 0 */
-		this->protocols[0].callback(wsi,
+		this->protocols[0].callback(this, wsi,
 			LWS_CALLBACK_CLEAR_MODE_POLL_FD,
 			(void *)(long)wsi->sock, NULL, POLLIN);
 
@@ -1154,7 +1155,7 @@
 		this->fds[this->fds_count++].events = POLLIN;
 
 		/* external POLL support via protocol 0 */
-		this->protocols[0].callback(wsi,
+		this->protocols[0].callback(this, wsi,
 			LWS_CALLBACK_ADD_POLL_FD,
 			(void *)(long)sockfd, NULL, POLLIN);
 
@@ -1232,7 +1233,7 @@
 		this->fds_count++;
 
 		/* external POLL support via protocol 0 */
-		this->protocols[0].callback(wsi,
+		this->protocols[0].callback(this, wsi,
 			LWS_CALLBACK_ADD_POLL_FD,
 			(void *)(long)fd, NULL, POLLIN);
 	}
@@ -1395,7 +1396,7 @@
 				if (wsi->protocol != protocol)
 					continue;
 
-				wsi->protocol->callback(wsi,
+				wsi->protocol->callback(this, wsi,
 					 LWS_CALLBACK_BROADCAST,
 					 wsi->user_space,
 					 buf, len);
diff --git a/lib/libwebsockets.h b/lib/libwebsockets.h
index 5a65c21..7b73a6b 100644
--- a/lib/libwebsockets.h
+++ b/lib/libwebsockets.h
@@ -125,6 +125,7 @@
 /* document the generic callback (it's a fake prototype under this) */
 /**
  * callback() - User server actions
+ * @this:	Websockets context
  * @wsi:	Opaque websocket instance pointer
  * @reason:	The reason for the call
  * @user:	Pointer to per-session user data allocated by library
@@ -235,7 +236,8 @@
  * 		pollfd struct for this socket descriptor.  If you are using the
  *		internal polling loop, you can just ignore it.
  */
-extern int callback(struct libwebsocket *wsi,
+extern int callback(struct libwebsocket_context * this,
+			struct libwebsocket *wsi,
 			 enum libwebsocket_callback_reasons reason, void *user,
 							  void *in, size_t len);
 
@@ -269,7 +271,8 @@
 
 struct libwebsocket_protocols {
 	const char *name;
-	int (*callback)(struct libwebsocket *wsi,
+	int (*callback)(struct libwebsocket_context * this,
+			struct libwebsocket *wsi,
 			enum libwebsocket_callback_reasons reason, void *user,
 							  void *in, size_t len);
 	size_t per_session_data_size;
@@ -352,7 +355,8 @@
 libwebsockets_get_protocol(struct libwebsocket *wsi);
 
 extern int
-libwebsocket_callback_on_writable(struct libwebsocket *wsi);
+libwebsocket_callback_on_writable(struct libwebsocket_context *this,
+						      struct libwebsocket *wsi);
 
 extern int
 libwebsocket_callback_on_writable_all_protocol(
diff --git a/lib/parsers.c b/lib/parsers.c
index e095b06..d6cae1c 100644
--- a/lib/parsers.c
+++ b/lib/parsers.c
@@ -128,10 +128,10 @@
 		/* no payload challenge in 01 + */
 
 		if (wsi->utf8_token[WSI_TOKEN_VERSION].token_len &&
-			 atoi(wsi->utf8_token[WSI_TOKEN_VERSION].token) > 0) {
-			wsi->utf8_token[wsi->parser_state].token_len = 0;
-			free(wsi->utf8_token[wsi->parser_state].token);
-			wsi->utf8_token[wsi->parser_state].token = NULL;
+			   atoi(wsi->utf8_token[WSI_TOKEN_VERSION].token) > 0) {
+			wsi->utf8_token[WSI_TOKEN_CHALLENGE].token_len = 0;
+			free(wsi->utf8_token[WSI_TOKEN_CHALLENGE].token);
+			wsi->utf8_token[WSI_TOKEN_CHALLENGE].token = NULL;
 		}
 
 		/* For any supported protocol we have enough payload */
@@ -555,7 +555,8 @@
 			break;
 issue:
 		if (wsi->protocol->callback)
-			wsi->protocol->callback(wsi, LWS_CALLBACK_RECEIVE,
+			wsi->protocol->callback(wsi->protocol->owning_server,
+			  wsi, LWS_CALLBACK_RECEIVE,
 			  wsi->user_space,
 			  &wsi->rx_user_buffer[LWS_SEND_BUFFER_PRE_PADDING],
 			  wsi->rx_user_buffer_head);
@@ -642,7 +643,8 @@
 					       wsi->rx_user_buffer_head] = '\0';
 
 		if (wsi->protocol->callback)
-			wsi->protocol->callback(wsi, LWS_CALLBACK_RECEIVE,
+			wsi->protocol->callback(wsi->protocol->owning_server,
+						wsi, LWS_CALLBACK_RECEIVE,
 						wsi->user_space,
 			  &wsi->rx_user_buffer[LWS_SEND_BUFFER_PRE_PADDING],
 						      wsi->rx_user_buffer_head);
@@ -880,7 +882,8 @@
 			break;
 issue:
 		if (wsi->protocol->callback)
-			wsi->protocol->callback(wsi,
+			wsi->protocol->callback(wsi->protocol->owning_server,
+						wsi,
 						LWS_CALLBACK_CLIENT_RECEIVE,
 						wsi->user_space,
 			  &wsi->rx_user_buffer[LWS_SEND_BUFFER_PRE_PADDING],
@@ -958,7 +961,8 @@
 		 */
 
 		if (wsi->protocol->callback)
-			wsi->protocol->callback(wsi, callback_action,
+			wsi->protocol->callback(wsi->protocol->owning_server,
+						wsi, callback_action,
 						wsi->user_space,
 			  &wsi->rx_user_buffer[LWS_SEND_BUFFER_PRE_PADDING],
 						      wsi->rx_user_buffer_head);
diff --git a/libwebsockets-api-doc.html b/libwebsockets-api-doc.html
index 1415ff5..3f080b2 100644
--- a/libwebsockets-api-doc.html
+++ b/libwebsockets-api-doc.html
@@ -123,7 +123,8 @@
 <h2>libwebsocket_callback_on_writable - Request a callback when this socket becomes able to be written to without blocking *</h2>
 <i>int</i>
 <b>libwebsocket_callback_on_writable</b>
-(<i>struct libwebsocket *</i> <b>wsi</b>)
+(<i>struct libwebsocket_context *</i> <b>this</b>,
+<i>struct libwebsocket *</i> <b>wsi</b>)
 <h3>Arguments</h3>
 <dl>
 <dt><b>wsi</b>
@@ -439,13 +440,16 @@
 <h2>callback - User server actions</h2>
 <i>int</i>
 <b>callback</b>
-(<i>struct libwebsocket *</i> <b>wsi</b>,
+(<i>struct libwebsocket_context *</i> <b>this</b>,
+<i>struct libwebsocket *</i> <b>wsi</b>,
 <i>enum libwebsocket_callback_reasons</i> <b>reason</b>,
 <i>void *</i> <b>user</b>,
 <i>void *</i> <b>in</b>,
 <i>size_t</i> <b>len</b>)
 <h3>Arguments</h3>
 <dl>
+<dt><b>this</b>
+<dd>Websockets context
 <dt><b>wsi</b>
 <dd>Opaque websocket instance pointer
 <dt><b>reason</b>
@@ -600,7 +604,7 @@
 <h2>struct libwebsocket_protocols - List of protocols and handlers server supports.</h2>
 <b>struct libwebsocket_protocols</b> {<br>
 &nbsp; &nbsp; <i>const char *</i> <b>name</b>;<br>
-&nbsp; &nbsp; <i>int (*</i><b>callback</b>) <i>(struct libwebsocket *wsi,enum libwebsocket_callback_reasons reason, void *user,void *in, size_t len)</i>;<br>
+&nbsp; &nbsp; <i>int (*</i><b>callback</b>) <i>(struct libwebsocket_context * this,struct libwebsocket *wsi,enum libwebsocket_callback_reasons reason, void *user,void *in, size_t len)</i>;<br>
 &nbsp; &nbsp; <i>size_t</i> <b>per_session_data_size</b>;<br>
 &nbsp; &nbsp; <i>struct libwebsocket_context *</i> <b>owning_server</b>;<br>
 &nbsp; &nbsp; <i>int</i> <b>broadcast_socket_port</b>;<br>
diff --git a/test-server/test-client.c b/test-server/test-client.c
index 298d013..52ce477 100644
--- a/test-server/test-client.c
+++ b/test-server/test-client.c
@@ -56,7 +56,8 @@
 /* dumb_increment protocol */
 
 static int
-callback_dumb_increment(struct libwebsocket *wsi,
+callback_dumb_increment(struct libwebsocket_context * this,
+			struct libwebsocket *wsi,
 			enum libwebsocket_callback_reasons reason,
 					       void *user, void *in, size_t len)
 {
@@ -79,7 +80,8 @@
 
 
 static int
-callback_lws_mirror(struct libwebsocket *wsi,
+callback_lws_mirror(struct libwebsocket_context * this,
+			struct libwebsocket *wsi,
 			enum libwebsocket_callback_reasons reason,
 					       void *user, void *in, size_t len)
 {
@@ -96,7 +98,7 @@
 		 * LWS_CALLBACK_CLIENT_WRITEABLE will come next service
 		 */
 
-		libwebsocket_callback_on_writable(wsi);
+		libwebsocket_callback_on_writable(this, wsi);
 		break;
 
 	case LWS_CALLBACK_CLIENT_RECEIVE:
@@ -117,7 +119,7 @@
 
 		/* get notified as soon as we can write again */
 
-		libwebsocket_callback_on_writable(wsi);
+		libwebsocket_callback_on_writable(this, wsi);
 
 		/*
 		 * without at least this delay, we choke the browser
diff --git a/test-server/test-ping.c b/test-server/test-ping.c
index 8703a41..c04bb87 100644
--- a/test-server/test-ping.c
+++ b/test-server/test-ping.c
@@ -46,6 +46,7 @@
 #define MAX_PING_CLIENTS 256
 #define PING_RINGBUFFER_SIZE 256
 
+static struct libwebsocket *ping_wsi[MAX_PING_CLIENTS];
 static unsigned int interval_us = 1000000;
 static unsigned int size = 64;
 static int flood;
@@ -97,7 +98,8 @@
 
 
 static int
-callback_lws_mirror(struct libwebsocket *wsi,
+callback_lws_mirror(struct libwebsocket_context * this,
+			struct libwebsocket *wsi,
 			enum libwebsocket_callback_reasons reason,
 					       void *user, void *in, size_t len)
 {
@@ -111,6 +113,23 @@
 	struct per_session_data__ping *psd = user;
 
 	switch (reason) {
+	case LWS_CALLBACK_CLOSED:
+
+		fprintf(stderr, "LWS_CALLBACK_CLOSED on %p\n", (void *)wsi);
+
+		/* remove closed guy */
+	
+		for (n = 0; n < clients; n++)
+			if (ping_wsi[n] == wsi) {				
+				clients--;
+				while (n < clients) {
+					ping_wsi[n] = ping_wsi[n + 1];
+					n++;
+				}
+			}
+
+		break;
+
 	case LWS_CALLBACK_CLIENT_ESTABLISHED:
 
 		psd->rx_count = 0;
@@ -123,7 +142,7 @@
 		 * LWS_CALLBACK_CLIENT_WRITEABLE will come next service
 		 */
 
-		libwebsocket_callback_on_writable(wsi);
+		libwebsocket_callback_on_writable(this, wsi);
 		break;
 
 	case LWS_CALLBACK_CLIENT_RECEIVE:
@@ -298,7 +317,6 @@
 	int port = 7681;
 	int use_ssl = 0;
 	struct libwebsocket_context *context;
-	struct libwebsocket *wsi[MAX_PING_CLIENTS];
 	char protocol_name[256];
 	char ip[30];
 	struct sigaction sa;
@@ -392,18 +410,19 @@
 	/* create client websockets using dumb increment protocol */
 
 	for (n = 0; n < clients; n++) {
-		wsi[n] = libwebsocket_client_connect(context, address, port,
-						     use_ssl, "/", address,
+		ping_wsi[n] = libwebsocket_client_connect(context, address,
+						   port, use_ssl, "/", address,
 				 "origin", protocols[PROTOCOL_LWS_MIRROR].name,
 								  ietf_version);
-		if (wsi[n] == NULL) {
+		if (ping_wsi[n] == NULL) {
 			fprintf(stderr, "client connnection %d failed to "
 								"connect\n", n);
 			return 1;
 		}
 	}
 
-	libwebsockets_get_peer_addresses(libwebsocket_get_socket_fd(wsi[0]),
+	libwebsockets_get_peer_addresses(
+			libwebsocket_get_socket_fd(ping_wsi[0]),
 				    peer_name, sizeof peer_name, ip, sizeof ip);
 
 	fprintf(stderr, "Websocket PING %s (%s) %d bytes of data.\n",
@@ -427,12 +446,18 @@
 		gettimeofday(&tv, NULL);
 		l = (tv.tv_sec * 1000000) + tv.tv_usec;
 
+		/* servers can hang up on us */
+
+		if (clients == 0) {
+			n = -1;
+			continue;
+		}
 
 		if (!interrupted_time) {
 			if ((l - oldus) > interval_us) {
 				for (n = 0; n < clients; n++)
 					libwebsocket_callback_on_writable(
-									wsi[n]);
+							  context, ping_wsi[n]);
 				oldus = l;
 			}
 		} else
diff --git a/test-server/test-server-extpoll.c b/test-server/test-server-extpoll.c
index 450e5f6..74b1c02 100644
--- a/test-server/test-server-extpoll.c
+++ b/test-server/test-server-extpoll.c
@@ -72,7 +72,8 @@
 
 /* this protocol server (always the first one) just knows how to do HTTP */
 
-static int callback_http(struct libwebsocket *wsi,
+static int callback_http(struct libwebsocket_context * this,
+		struct libwebsocket *wsi,
 		enum libwebsocket_callback_reasons reason, void *user,
 							   void *in, size_t len)
 {
@@ -216,7 +217,8 @@
 };
 
 static int
-callback_dumb_increment(struct libwebsocket *wsi,
+callback_dumb_increment(struct libwebsocket_context * this,
+			struct libwebsocket *wsi,
 			enum libwebsocket_callback_reasons reason,
 					       void *user, void *in, size_t len)
 {
@@ -293,7 +295,8 @@
 
 
 static int
-callback_lws_mirror(struct libwebsocket *wsi,
+callback_lws_mirror(struct libwebsocket_context * this,
+			struct libwebsocket *wsi,
 			enum libwebsocket_callback_reasons reason,
 					       void *user, void *in, size_t len)
 {
@@ -305,7 +308,7 @@
 	case LWS_CALLBACK_ESTABLISHED:
 		pss->ringbuffer_tail = ringbuffer_head;
 		pss->wsi = wsi;
-		libwebsocket_callback_on_writable(wsi);
+		libwebsocket_callback_on_writable(this, wsi);
 		break;
 
 	case LWS_CALLBACK_CLIENT_WRITEABLE:
@@ -332,7 +335,7 @@
 				  MAX_MESSAGE_QUEUE) < (MAX_MESSAGE_QUEUE - 15))
 				libwebsocket_rx_flow_control(wsi, 1);
 
-			libwebsocket_callback_on_writable(wsi);
+			libwebsocket_callback_on_writable(this, wsi);
 
 		}
 		break;
diff --git a/test-server/test-server.c b/test-server/test-server.c
index 9143c03..db22868 100644
--- a/test-server/test-server.c
+++ b/test-server/test-server.c
@@ -60,7 +60,8 @@
 
 /* this protocol server (always the first one) just knows how to do HTTP */
 
-static int callback_http(struct libwebsocket *wsi,
+static int callback_http(struct libwebsocket_context * this,
+		struct libwebsocket *wsi,
 		enum libwebsocket_callback_reasons reason, void *user,
 							   void *in, size_t len)
 {
@@ -171,7 +172,8 @@
 };
 
 static int
-callback_dumb_increment(struct libwebsocket *wsi,
+callback_dumb_increment(struct libwebsocket_context * this,
+			struct libwebsocket *wsi,
 			enum libwebsocket_callback_reasons reason,
 					       void *user, void *in, size_t len)
 {
@@ -247,7 +249,8 @@
 
 
 static int
-callback_lws_mirror(struct libwebsocket *wsi,
+callback_lws_mirror(struct libwebsocket_context * this,
+			struct libwebsocket *wsi,
 			enum libwebsocket_callback_reasons reason,
 					       void *user, void *in, size_t len)
 {
@@ -283,7 +286,7 @@
 				  MAX_MESSAGE_QUEUE) < (MAX_MESSAGE_QUEUE - 15))
 				libwebsocket_rx_flow_control(wsi, 1);
 
-			libwebsocket_callback_on_writable(wsi);
+			libwebsocket_callback_on_writable(this, wsi);
 
 		}
 		break;