In development...

5 files changed, 414 insertions, 419 deletions

diff --git a/munia.html b/munia.html
index 2eb8438..46feb61 100644
--- a/munia.html
+++ b/munia.html
@@ -100,7 +100,7 @@ function get_appropriate_ws_url()
 
 //document.getElementById("create_task").style.display = '';
 
-/* lws-mirror protocol */
+/* lws-task protocol */
 
 var down = 0;
 var no_last = 1;
@@ -111,9 +111,9 @@ var color = "#000000";
 var dragged = "";
 
 if (BrowserDetect.browser == "Firefox") {
-  socket_lm = new MozWebSocket(get_appropriate_ws_url(), "lws-mirror-protocol");
+  socket_lm = new MozWebSocket(get_appropriate_ws_url(), "lws-task-protocol");
 } else {
-  socket_lm = new WebSocket(get_appropriate_ws_url(),  "lws-mirror-protocol");
+  socket_lm = new WebSocket(get_appropriate_ws_url(),  "lws-task-protocol");
 }
 
 try {
diff --git a/src/Makefile.am b/src/Makefile.am
index b7ded17..9b20d05 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -9,11 +9,13 @@ muniad_CXXFLAGS = $(LIBWEBSOCKETS_CFLAGS)
 muniad_SOURCES = \
 	muniad.cc \
 	http.cc \
-	task.cc
+	task.cc \
+	task_proto.cc
 
 EXTRA_DIST = \
 	http.h \
-	task.h
+	task.h \
+	task_proto.h
 
 ################
 # Test Section #
diff --git a/src/muniad.cc b/src/muniad.cc
index 8181f68..82311e7 100644
--- a/src/muniad.cc
+++ b/src/muniad.cc
@@ -36,310 +36,7 @@
 #include <libwebsockets.h>
 
 #include "http.h"
-#include "task.h"
-
-#define LWS_NO_FORK
-
-static int close_testing;
-
-/*
- * this is just an example of parsing handshake headers, you don't need this
- * in your code unless you will filter allowing connections by the header
- * content
- */
-
-static void dump_handshake_info(struct lws_tokens *lwst)
-{
-	int n;
-  static const char *token_names[WSI_TOKEN_COUNT] = {
-    /*[WSI_TOKEN_GET_URI]     =*/ "GET URI",
-    /*[WSI_TOKEN_HOST]        =*/ "Host",
-    /*[WSI_TOKEN_CONNECTION]  =*/ "Connection",
-    /*[WSI_TOKEN_KEY1]        =*/ "key 1",
-    /*[WSI_TOKEN_KEY2]        =*/ "key 2",
-    /*[WSI_TOKEN_PROTOCOL]    =*/ "Protocol",
-    /*[WSI_TOKEN_UPGRADE]     =*/ "Upgrade",
-    /*[WSI_TOKEN_ORIGIN]      =*/ "Origin",
-    /*[WSI_TOKEN_DRAFT]       =*/ "Draft",
-    /*[WSI_TOKEN_CHALLENGE]   =*/ "Challenge",
-    
-    /* new for 04 */
-    /*[WSI_TOKEN_KEY]         =*/ "Key",
-    /*[WSI_TOKEN_VERSION]     =*/ "Version",
-    /*[WSI_TOKEN_SWORIGIN]    =*/ "Sworigin",
-    
-    /* new for 05 */
-    /*[WSI_TOKEN_EXTENSIONS]  =*/ "Extensions",
-    
-    /* client receives these */
-    /*[WSI_TOKEN_ACCEPT]      =*/ "Accept",
-    /*[WSI_TOKEN_NONCE]       =*/ "Nonce",
-    /*[WSI_TOKEN_HTTP]        =*/ "Http",
-    /*[WSI_TOKEN_MUXURL]      =*/ "MuxURL",
-	};
-	
-	for (n = 0; n < WSI_TOKEN_COUNT; n++) {
-		if (lwst[n].token == NULL || lwst[n].token_len == 0) continue;
-		fprintf(stderr, "    %s = ", token_names[n]);
-		if(fwrite(lwst[n].token, 1, lwst[n].token_len, stderr)) {}
-		fprintf(stderr, "\n");
-	}
-}
-
-
-/* lws-mirror_protocol */
-
-#define MAX_MESSAGE_QUEUE 1024
-
-struct per_session_data__lws_mirror {
-	struct libwebsocket *wsi;
-	int ringbuffer_tail;
-};
-
-struct a_message {
-	void *payload;
-	size_t len;
-};
-
-typedef std::list<struct libwebsocket*> ClientList;
-
-static struct a_message ringbuffer[MAX_MESSAGE_QUEUE];
-static int ringbuffer_head;
-static ClientList clientlist;
-static int id_count = 0;
-static int callback_lws_mirror(struct libwebsocket_context * context,
-                               struct libwebsocket *wsi,
-                               enum libwebsocket_callback_reasons reason,
-                               void *user, void *in, size_t len)
-{
-	int n;
-	struct per_session_data__lws_mirror *pss = (struct per_session_data__lws_mirror *)user;
-
-  printf("Current number of clients: %d\n", clientlist.size());
-
-	switch (reason) {
-
-	case LWS_CALLBACK_ESTABLISHED:
-    {
-      fprintf(stderr, "callback_lws_mirror: LWS_CALLBACK_ESTABLISHED\n");
-      pss->ringbuffer_tail = ringbuffer_head;
-      pss->wsi = wsi;
-      clientlist.push_back(wsi);
-
-      // send all current tasks
-      char buf[32];
-      std::string init_str;
-      TaskList::iterator it;
-      for(it = tasklist.begin(); it != tasklist.end(); it++) {
-        struct task t = *it;
-
-        sprintf(buf, "add %d %s %s %d %d;",
-                        t.id, t.title.c_str(), t.desc.c_str(), t.x, t.y);
-        init_str.append(buf);
-      }
-
-      libwebsocket_write(wsi, (unsigned char*) init_str.data(), init_str.length(), LWS_WRITE_TEXT);
-
-    }
-    break;
-
-  case LWS_CALLBACK_CLOSED:
-    {
-      printf("Closing connection\n");
-      clientlist.remove(wsi);
-    }
-
-	case LWS_CALLBACK_SERVER_WRITEABLE:
-    {
-      printf("LWS_CALLBACK_SERVER_WRITEABLE\n");
-      
-      if(close_testing) break;
-      
-      if(pss->ringbuffer_tail != ringbuffer_head) {
-        n = libwebsocket_write(wsi, (unsigned char *)
-                               ringbuffer[pss->ringbuffer_tail].payload +
-                               LWS_SEND_BUFFER_PRE_PADDING,
-                               ringbuffer[pss->ringbuffer_tail].len,
-                               LWS_WRITE_TEXT);
-        if(n < 0) {
-          fprintf(stderr, "ERROR writing to socket");
-          exit(1);
-        }
-        
-        if(pss->ringbuffer_tail == (MAX_MESSAGE_QUEUE - 1)) pss->ringbuffer_tail = 0;
-        else pss->ringbuffer_tail++;
-        
-        if(((ringbuffer_head - pss->ringbuffer_tail) % MAX_MESSAGE_QUEUE) < (MAX_MESSAGE_QUEUE - 15))
-          libwebsocket_rx_flow_control(wsi, 1);
-        
-        libwebsocket_callback_on_writable(context, wsi);
-      }
-    }
-		break;
-
-	case LWS_CALLBACK_BROADCAST:
-    printf("LWS_CALLBACK_BROADCAST\n");
-		n = libwebsocket_write(wsi, (unsigned char*)in, len, LWS_WRITE_TEXT);
-		if (n < 0) fprintf(stderr, "mirror write failed\n");
-		break;
-
-	case LWS_CALLBACK_RECEIVE:
-    {
-      printf("LWS_CALLBACK_RECEIVE\n");
-
-      printf("%s\n", (char*)in);
-      std::string data;
-      data.append((char*)in, len);
-    
-
-      struct a_message &msg = ringbuffer[ringbuffer_head];
-      if(msg.payload) {
-        free(msg.payload);
-        msg.payload = NULL;
-      }
-
-      char* buf = (char*) malloc(1024);
-      int buf_len = 0;
-
-      std::string cmd = data.substr(0, data.find(' '));
-      printf("Cmd: %s\n", cmd.c_str());
-
-      if(cmd == "add") {
-        printf("Handling add cmd:\n");
-        int offset = cmd.length() + 1;
-        std::string title = data.substr(offset, data.find(' ', offset) - offset);
-        offset += title.length() + 1;
-        std::string desc = data.substr(offset, data.find(' ', offset) - offset);
-        offset += desc.length() + 1;
-        std::string x_str = data.substr(offset, data.find(' ', offset) - offset);
-        int x = atoi(x_str.c_str());
-        offset += x_str.length() + 1;
-        std::string y_str = data.substr(offset, data.find(' ', offset) - offset);
-        int y = atoi(y_str.c_str());
-        
-        struct task t;
-        t.x = x;
-        t.y = y;
-        t.title = title;
-        t.desc = desc;
-        t.id = id_count; id_count++;
-        tasklist.push_back(t);
-        
-        buf_len = sprintf(buf, "add %d %s %s %d %d;",
-                        t.id, t.title.c_str(), t.desc.c_str(), 
-                        t.x, t.y);
-
-        printf("Adding task: %s\n", buf);
-
-      } else if(cmd == "del") {
-        printf("Delete\n");
-        int offset = cmd.length() + 1;
-        std::string id_str = data.substr(offset, data.find(' ', offset) - offset);
-        int id = atoi(id_str.c_str());
-        printf("Deleting task with id %d\n", id);
-     
-        bool id_found = false;
-        TaskList::iterator it;
-        for(it = tasklist.begin(); it != tasklist.end(); it++) {
-          struct task t = *it;
-          if(t.id == id) {
-            id_found = true;
-            tasklist.erase(it);
-            break;
-          }
-        }
-
-        if(!id_found) {
-          printf("\t!!!Could not locate task with id %d\n", id);
-        }
-
-        buf_len = sprintf(buf, "del %d;", id);
-        printf("Deleting task: %s\n", buf);
-
-      } else if(cmd == "move") {
-        printf("Move\n");
-
-        int offset = cmd.length() + 1;
-        std::string s_id = data.substr(offset, data.find(' ', offset) - offset);
-        int id = atoi(s_id.c_str());
-        offset += s_id.length() + 1;
-        std::string x_str = data.substr(offset, data.find(' ', offset) - offset);
-        int x = atoi(x_str.c_str());
-        offset += x_str.length() + 1;
-        std::string y_str = data.substr(offset, data.find(' ', offset) - offset);
-        int y = atoi(y_str.c_str());
-
-        printf("Moving task with id %d to (%d,%d)\n", id, x, y);
-     
-        bool id_found = false;
-        TaskList::iterator it;
-        for(it = tasklist.begin(); it != tasklist.end(); it++) {
-          struct task t = *it;
-          if(t.id == id) {
-            id_found = true;
-            t.x = x;
-            t.y = y;
-            break;
-          }
-        }
-        
-        if(!id_found) {
-          printf("\t!!!Could not locate task with id %d\n", id);
-        }
-
-        buf_len = sprintf(buf, "move %d %d %d;", id, x / 300 * 300, y);
-        printf("Moving task: %s\n", buf);
-      } else if(cmd == "update") {
-        printf("Update\n");
-      } else if(cmd == "d") {
-        memcpy(buf, in, len);
-        buf_len = len;
-      }
-      else { // unknown command
-        printf("Unknown command :(\n");
-        break;
-      }
-        
-//      msg.payload = malloc(LWS_SEND_BUFFER_PRE_PADDING + len + LWS_SEND_BUFFER_POST_PADDING);
-//      msg.len = len;
-//      memcpy((char *)msg.payload + LWS_SEND_BUFFER_PRE_PADDING, in, len);
-//      if(ringbuffer_head == (MAX_MESSAGE_QUEUE - 1)) ringbuffer_head = 0;
-//      else ringbuffer_head++;
-
-      msg.payload = malloc(LWS_SEND_BUFFER_PRE_PADDING + buf_len 
-                                         + LWS_SEND_BUFFER_POST_PADDING);
-      msg.len = buf_len;
-      memcpy((char *)msg.payload + LWS_SEND_BUFFER_PRE_PADDING, 
-                buf, buf_len);
-      if(ringbuffer_head == (MAX_MESSAGE_QUEUE - 1)) ringbuffer_head = 0;
-      else ringbuffer_head++;
-
-
-      if(((ringbuffer_head - pss->ringbuffer_tail) % MAX_MESSAGE_QUEUE) > (MAX_MESSAGE_QUEUE - 10))
-        libwebsocket_rx_flow_control(wsi, 0);
-      
-      libwebsocket_callback_on_writable_all_protocol(libwebsockets_get_protocol(wsi));
-    }
-		break;
-	/*
-	 * this just demonstrates how to use the protocol filter. If you won't
-	 * study and reject connections based on header content, you don't need
-	 * to handle this callback
-	 */
-
-	case LWS_CALLBACK_FILTER_PROTOCOL_CONNECTION:
-    printf("LWS_CALLBACK_FILTER_PROTOCOL_CONNECTION\n");
-		dump_handshake_info((struct lws_tokens *)(long)user);
-		/* you could return non-zero here and kill the connection */
-		break;
-
-	default:
-		break;
-	}
-
-	return 0;
-}
-
+#include "task_proto.h"
 
 /* list of supported protocols and callbacks */
 
@@ -352,9 +49,9 @@ static struct libwebsocket_protocols protocols[] = {
 		0			/* per_session_data_size */
 	},
 	{
-		"lws-mirror-protocol",
-		callback_lws_mirror,
-		sizeof(struct per_session_data__lws_mirror)
+		"lws-task-protocol",
+		callback_lws_task,
+		sizeof(struct per_session_data__lws_task)
 	},
 	{
 		NULL, NULL, 0		/* End of list */
@@ -367,7 +64,6 @@ static struct option options[] = {
 	{ "ssl",	no_argument,		NULL, 's' },
 	{ "killmask",	no_argument,		NULL, 'k' },
 	{ "interface",  required_argument, 	NULL, 'i' },
-	{ "closetest",  no_argument,		NULL, 'c' },
 	{ NULL, 0, 0, 0 }
 };
 
@@ -375,30 +71,25 @@ int main(int argc, char **argv)
 {
 	int n = 0;
 	const char *cert_path =
-			    LOCAL_RESOURCE_PATH"/libwebsockets-test-server.pem";
+    LOCAL_RESOURCE_PATH"/libwebsockets-test-server.pem";
 	const char *key_path =
-			LOCAL_RESOURCE_PATH"/libwebsockets-test-server.key.pem";
-	unsigned char buf[LWS_SEND_BUFFER_PRE_PADDING + 1024 +
-						  LWS_SEND_BUFFER_POST_PADDING];
+    LOCAL_RESOURCE_PATH"/libwebsockets-test-server.key.pem";
+
 	int port = 7681;
 	int use_ssl = 0;
 	struct libwebsocket_context *context;
 	int opts = 0;
 	char interface_name[128] = "";
 	const char * interface = NULL;
-#ifdef LWS_NO_FORK
-//	unsigned int oldus = 0;
-#endif
 
 	fprintf(stderr, "libwebsockets test server\n"
-			"(C) Copyright 2010-2011 Andy Green <andy@warmcat.com> "
-						    "licensed under LGPL2.1\n");
+          "(C) Copyright 2010-2011 Andy Green <andy@warmcat.com> "
+          "licensed under LGPL2.1\n");
 
-	while (n >= 0) {
+	while(n >= 0) {
 		n = getopt_long(argc, argv, "ci:khsp:", options, NULL);
-		if (n < 0)
-			continue;
-		switch (n) {
+		if(n < 0)	continue;
+		switch(n) {
 		case 's':
 			use_ssl = 1;
 			break;
@@ -413,15 +104,8 @@ int main(int argc, char **argv)
 			interface_name[(sizeof interface_name) - 1] = '\0';
 			interface = interface_name;
 			break;
-		case 'c':
-			close_testing = 1;
-			fprintf(stderr, " Close testing mode -- closes on "
-					   "client after 50 dumb increments"
-					   "and suppresses lws_mirror spam\n");
-			break;
 		case 'h':
-			fprintf(stderr, "Usage: test-server "
-					     "[--port=<p>] [--ssl]\n");
+			fprintf(stderr, "Usage: test-server [--port=<p>] [--ssl]\n");
 			exit(1);
 		}
 	}
@@ -430,98 +114,16 @@ int main(int argc, char **argv)
 		cert_path = key_path = NULL;
 
 	context = libwebsocket_create_context(port, interface, protocols,
-				libwebsocket_internal_extensions,
-				cert_path, key_path, -1, -1, opts);
+                                        libwebsocket_internal_extensions,
+                                        cert_path, key_path, -1, -1, opts);
 	if (context == NULL) {
 		fprintf(stderr, "libwebsocket init failed\n");
 		return -1;
 	}
 
-	buf[LWS_SEND_BUFFER_PRE_PADDING] = 'x';
-
-#ifdef LWS_NO_FORK
-
-	/*
-	 * This example shows how to work with no forked service loop
-	 */
-
-	fprintf(stderr, " Using no-fork service loop\n");
-
-	while (1) {
-		/*
-		 * This example server does not fork or create a thread for
-		 * websocket service, it all runs in this single loop.  So,
-		 * we have to give the websockets an opportunity to service
-		 * "manually".
-		 *
-		 * If no socket is needing service, the call below returns
-		 * immediately and quickly.
-		 */
-
-		libwebsocket_service(context, 50);
-	}
-
-#else
-
-	/*
-	 * This example shows how to work with the forked websocket service loop
-	 */
-
-	fprintf(stderr, " Using forked service loop\n");
-
-	/*
-	 * This forks the websocket service action into a subprocess so we
-	 * don't have to take care about it.
-	 */
-
-	n = libwebsockets_fork_service_loop(context);
-	if (n < 0) {
-		fprintf(stderr, "Unable to fork service loop %d\n", n);
-		return 1;
-	}
-
-	while (1) {
-
-		usleep(50000);
-
-		/*
-		 * This broadcasts to all dumb-increment-protocol connections
-		 * at 20Hz.
-		 *
-		 * We're just sending a character 'x', in these examples the
-		 * callbacks send their own per-connection content.
-		 *
-		 * You have to send something with nonzero length to get the
-		 * callback actions delivered.
-		 *
-		 * We take care of pre-and-post padding allocation.
-		 */
-
-		libwebsockets_broadcast(&protocols[PROTOCOL_DUMB_INCREMENT],
-					&buf[LWS_SEND_BUFFER_PRE_PADDING], 1);
-	}
-
-#endif
+	while (1) libwebsocket_service(context, 50);
 
 	libwebsocket_context_destroy(context);
 
 	return 0;
 }
-
-#ifdef TEST_MUNIAD
-//Additional dependency files
-//deps:
-//Required cflags (autoconf vars may be used)
-//cflags:
-//Required link options (autoconf vars may be used)
-//libs:
-#include "test.h"
-
-TEST_BEGIN;
-
-// TODO: Put some testcode here (see test.h for usable macros).
-TEST_TRUE(false, "No tests yet!");
-
-TEST_END;
-
-#endif/*TEST_MUNIAD*/
diff --git a/src/task_proto.cc b/src/task_proto.cc
new file mode 100644
index 0000000..af1e31d
--- /dev/null
+++ b/src/task_proto.cc
@@ -0,0 +1,347 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set et sw=2 ts=2: */
+/***************************************************************************
+ *            task_proto.cc
+ *
+ *  Fri Feb 24 08:23:16 CET 2012
+ *  Copyright 2012 Bent Bisballe Nyeng
+ *  deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ *  This file is part of Munia.
+ *
+ *  Munia is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Munia is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with Munia; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+#include "task_proto.h"
+
+#include <stdio.h>
+#include <string.h>
+
+#include <queue>
+
+#include "task.h"
+
+static void dump_handshake_info(struct lws_tokens *lwst)
+{
+	int n;
+  static const char *token_names[WSI_TOKEN_COUNT] = {
+    /*[WSI_TOKEN_GET_URI]     =*/ "GET URI",
+    /*[WSI_TOKEN_HOST]        =*/ "Host",
+    /*[WSI_TOKEN_CONNECTION]  =*/ "Connection",
+    /*[WSI_TOKEN_KEY1]        =*/ "key 1",
+    /*[WSI_TOKEN_KEY2]        =*/ "key 2",
+    /*[WSI_TOKEN_PROTOCOL]    =*/ "Protocol",
+    /*[WSI_TOKEN_UPGRADE]     =*/ "Upgrade",
+    /*[WSI_TOKEN_ORIGIN]      =*/ "Origin",
+    /*[WSI_TOKEN_DRAFT]       =*/ "Draft",
+    /*[WSI_TOKEN_CHALLENGE]   =*/ "Challenge",
+    
+    /* new for 04 */
+    /*[WSI_TOKEN_KEY]         =*/ "Key",
+    /*[WSI_TOKEN_VERSION]     =*/ "Version",
+    /*[WSI_TOKEN_SWORIGIN]    =*/ "Sworigin",
+    
+    /* new for 05 */
+    /*[WSI_TOKEN_EXTENSIONS]  =*/ "Extensions",
+    
+    /* client receives these */
+    /*[WSI_TOKEN_ACCEPT]      =*/ "Accept",
+    /*[WSI_TOKEN_NONCE]       =*/ "Nonce",
+    /*[WSI_TOKEN_HTTP]        =*/ "Http",
+    /*[WSI_TOKEN_MUXURL]      =*/ "MuxURL",
+	};
+	
+	for (n = 0; n < WSI_TOKEN_COUNT; n++) {
+		if (lwst[n].token == NULL || lwst[n].token_len == 0) continue;
+		fprintf(stderr, "    %s = ", token_names[n]);
+		if(fwrite(lwst[n].token, 1, lwst[n].token_len, stderr)) {}
+		fprintf(stderr, "\n");
+	}
+}
+
+#define MAX_MESSAGE_QUEUE 1024
+
+struct a_message {
+	void *payload;
+	size_t len;
+};
+
+typedef std::list<struct libwebsocket*> ClientList;
+
+std::queue<std::string> msgqueue;
+
+/*
+static struct a_message ringbuffer[MAX_MESSAGE_QUEUE];
+static int ringbuffer_head;
+*/
+
+static ClientList clientlist;
+static int id_count = 0;
+
+int callback_lws_task(struct libwebsocket_context * context,
+                      struct libwebsocket *wsi,
+                      enum libwebsocket_callback_reasons reason,
+                      void *user, void *in, size_t len)
+{
+	int n;
+	struct per_session_data__lws_task *pss =
+    (struct per_session_data__lws_task *)user;
+
+  printf("Current number of clients: %d\n", clientlist.size());
+
+	switch (reason) {
+    printf("============= Reason %d\n", reason);
+	case LWS_CALLBACK_ESTABLISHED:
+    {
+      fprintf(stderr, "callback_lws_task: LWS_CALLBACK_ESTABLISHED\n");
+      //      pss->ringbuffer_tail = ringbuffer_head;
+      pss->wsi = wsi;
+      clientlist.push_back(wsi);
+
+      // send all current tasks
+      char buf[32];
+      std::string init_str;
+      TaskList::iterator it;
+      for(it = tasklist.begin(); it != tasklist.end(); it++) {
+        struct task t = *it;
+
+        sprintf(buf, "add %d %s %s %d %d;",
+                        t.id, t.title.c_str(), t.desc.c_str(), t.x, t.y);
+        init_str.append(buf);
+      }
+
+      std::string msg;
+      msg.append((size_t)LWS_SEND_BUFFER_PRE_PADDING, ' ');
+      msg.append(init_str);
+      msg.append((size_t)LWS_SEND_BUFFER_POST_PADDING, ' ');
+      msgqueue.push(msg);
+
+      /*
+      n = libwebsocket_write(wsi, (unsigned char*) init_str.data(),
+                             init_str.length(), LWS_WRITE_TEXT);
+      if(n < 0) {
+        fprintf(stderr, "ERROR writing to socket");
+        exit(1);
+      }
+      */
+      libwebsocket_rx_flow_control(wsi, 1);
+    }
+    break;
+
+  case LWS_CALLBACK_CLOSED:
+    {
+      printf("Closing connection\n");
+      clientlist.remove(wsi);
+    }
+
+	case LWS_CALLBACK_SERVER_WRITEABLE:
+    {
+      printf("LWS_CALLBACK_SERVER_WRITEABLE\n");
+      
+      //      if(pss->ringbuffer_tail != ringbuffer_head) {
+      if(msgqueue.size() > 0) {
+        std::string msg = msgqueue.front();
+        msgqueue.pop();
+        n = libwebsocket_write(wsi, (unsigned char *)
+                               msg.c_str() +
+                               LWS_SEND_BUFFER_PRE_PADDING,
+                               msg.length() - LWS_SEND_BUFFER_POST_PADDING - LWS_SEND_BUFFER_PRE_PADDING,
+                               LWS_WRITE_TEXT);
+        if(n < 0) {
+          fprintf(stderr, "ERROR writing to socket");
+          exit(1);
+        }
+        
+        /*
+        if(((ringbuffer_head - pss->ringbuffer_tail) % MAX_MESSAGE_QUEUE)
+           < (MAX_MESSAGE_QUEUE - 15))
+          libwebsocket_rx_flow_control(wsi, 1);
+        */
+
+        // libwebsocket_rx_flow_control(wsi,msgqueue.size() > 0);
+
+        libwebsocket_callback_on_writable(context, wsi);
+        usleep(200);
+      }
+    }
+		break;
+
+	case LWS_CALLBACK_BROADCAST:
+    printf("LWS_CALLBACK_BROADCAST\n");
+		n = libwebsocket_write(wsi, (unsigned char*)in, len, LWS_WRITE_TEXT);
+		if (n < 0) fprintf(stderr, "task write failed\n");
+		break;
+
+	case LWS_CALLBACK_RECEIVE:
+    {
+      printf("LWS_CALLBACK_RECEIVE\n");
+
+      printf("%s\n", (char*)in);
+      std::string data;
+      data.append((char*)in, len);
+    
+      /*
+      struct a_message &msg = ringbuffer[ringbuffer_head];
+      if(msg.payload) {
+        free(msg.payload);
+        msg.payload = NULL;
+      }
+
+      */
+      char buf[1024];
+      size_t buf_len = 0;
+
+      std::string cmd = data.substr(0, data.find(' '));
+      printf("Cmd: %s\n", cmd.c_str());
+
+      if(cmd == "add") {
+        printf("Handling add cmd:\n");
+        int offset = cmd.length() + 1;
+        std::string title = data.substr(offset, data.find(' ', offset) - offset);
+        offset += title.length() + 1;
+        std::string desc = data.substr(offset, data.find(' ', offset) - offset);
+        offset += desc.length() + 1;
+        std::string x_str = data.substr(offset, data.find(' ', offset) - offset);
+        int x = atoi(x_str.c_str());
+        offset += x_str.length() + 1;
+        std::string y_str = data.substr(offset, data.find(' ', offset) - offset);
+        int y = atoi(y_str.c_str());
+        
+        struct task t;
+        t.x = x;
+        t.y = y;
+        t.title = title;
+        t.desc = desc;
+        t.id = id_count; id_count++;
+        tasklist.push_back(t);
+        
+        buf_len = sprintf(buf, "add %d %s %s %d %d;",
+                          t.id, t.title.c_str(), t.desc.c_str(), 
+                          t.x, t.y);
+        
+        printf("Adding task: %s\n", buf);
+
+      } else if(cmd == "del") {
+        printf("Delete\n");
+        int offset = cmd.length() + 1;
+        std::string id_str = data.substr(offset, data.find(' ', offset) - offset);
+        int id = atoi(id_str.c_str());
+        printf("Deleting task with id %d\n", id);
+     
+        bool id_found = false;
+        TaskList::iterator it;
+        for(it = tasklist.begin(); it != tasklist.end(); it++) {
+          struct task t = *it;
+          if(t.id == id) {
+            id_found = true;
+            tasklist.erase(it);
+            break;
+          }
+        }
+
+        if(!id_found) {
+          printf("\t!!!Could not locate task with id %d\n", id);
+        }
+
+        buf_len = sprintf(buf, "del %d;", id);
+        printf("Deleting task: %s\n", buf);
+
+      } else if(cmd == "move") {
+        printf("Move\n");
+
+        int offset = cmd.length() + 1;
+        std::string s_id = data.substr(offset, data.find(' ', offset) - offset);
+        int id = atoi(s_id.c_str());
+        offset += s_id.length() + 1;
+        std::string x_str = data.substr(offset, data.find(' ', offset) - offset);
+        int x = atoi(x_str.c_str());
+        offset += x_str.length() + 1;
+        std::string y_str = data.substr(offset, data.find(' ', offset) - offset);
+        int y = atoi(y_str.c_str());
+
+        printf("Moving task with id %d to (%d,%d)\n", id, x, y);
+     
+        bool id_found = false;
+        TaskList::iterator it;
+        for(it = tasklist.begin(); it != tasklist.end(); it++) {
+          struct task t = *it;
+          if(t.id == id) {
+            id_found = true;
+            t.x = x;
+            t.y = y;
+            break;
+          }
+        }
+        
+        if(!id_found) {
+          printf("\t!!!Could not locate task with id %d\n", id);
+        }
+
+        buf_len = sprintf(buf, "move %d %d %d;", id, x / 300 * 300, y);
+        printf("Moving task: %s\n", buf);
+      } else if(cmd == "update") {
+        printf("Update\n");
+      }
+      else { // unknown command
+        printf("Unknown command :(\n");
+        break;
+      }
+        
+//      msg.payload = malloc(LWS_SEND_BUFFER_PRE_PADDING + len + LWS_SEND_BUFFER_POST_PADDING);
+//      msg.len = len;
+//      memcpy((char *)msg.payload + LWS_SEND_BUFFER_PRE_PADDING, in, len);
+//      if(ringbuffer_head == (MAX_MESSAGE_QUEUE - 1)) ringbuffer_head = 0;
+//      else ringbuffer_head++;
+/*
+      msg.payload = malloc(LWS_SEND_BUFFER_PRE_PADDING + buf_len 
+                                         + LWS_SEND_BUFFER_POST_PADDING);
+      msg.len = buf_len;
+      memcpy((char *)msg.payload + LWS_SEND_BUFFER_PRE_PADDING, 
+                buf, buf_len);
+      if(ringbuffer_head == (MAX_MESSAGE_QUEUE - 1)) ringbuffer_head = 0;
+      else ringbuffer_head++;
+*/
+      std::string msg;
+      msg.append((size_t)LWS_SEND_BUFFER_PRE_PADDING, ' ');
+      msg.append(buf, buf_len);
+      msg.append((size_t)LWS_SEND_BUFFER_POST_PADDING, ' ');
+      msgqueue.push(msg);
+      /*
+      if(((ringbuffer_head - pss->ringbuffer_tail) % MAX_MESSAGE_QUEUE) > (MAX_MESSAGE_QUEUE - 10))
+        libwebsocket_rx_flow_control(wsi, 0);
+      */
+      libwebsocket_callback_on_writable_all_protocol(libwebsockets_get_protocol(wsi));
+      //libwebsocket_rx_flow_control(wsi, 0);
+    }
+		break;
+	/*
+	 * this just demonstrates how to use the protocol filter. If you won't
+	 * study and reject connections based on header content, you don't need
+	 * to handle this callback
+	 */
+
+	case LWS_CALLBACK_FILTER_PROTOCOL_CONNECTION:
+    printf("LWS_CALLBACK_FILTER_PROTOCOL_CONNECTION\n");
+		dump_handshake_info((struct lws_tokens *)(long)user);
+		/* you could return non-zero here and kill the connection */
+		break;
+
+	default:
+		break;
+	}
+
+	return 0;
+}
diff --git a/src/task_proto.h b/src/task_proto.h
new file mode 100644
index 0000000..fe57752
--- /dev/null
+++ b/src/task_proto.h
@@ -0,0 +1,44 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set et sw=2 ts=2: */
+/***************************************************************************
+ *            task_proto.h
+ *
+ *  Fri Feb 24 08:23:15 CET 2012
+ *  Copyright 2012 Bent Bisballe Nyeng
+ *  deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ *  This file is part of Munia.
+ *
+ *  Munia is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Munia is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with Munia; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+#ifndef __MUNIA_TASK_PROTO_H__
+#define __MUNIA_TASK_PROTO_H__
+
+#include <stdlib.h>
+
+#include <libwebsockets.h>
+
+int callback_lws_task(struct libwebsocket_context * context,
+                      struct libwebsocket *wsi,
+                      enum libwebsocket_callback_reasons reason,
+                      void *user, void *in, size_t len);
+
+struct per_session_data__lws_task {
+	struct libwebsocket *wsi;
+};
+
+#endif/*__MUNIA_TASK_PROTO_H__*/