Simplified use for sock:send.

FIX

@@ -1 +1,2 @@
-tcp:shutdown() was checking for group instead of class.
+tcp{client}:shutdown() was checking for group instead of class.
+tcp{client}:send() now returns i+sent-1...

TODO

@@ -1,3 +1,15 @@
+
+think about a dispatcher.
+    - it creates a server and receives a function that will do the work on
+    received connections
+    - this function is invoked with the client socket
+    - it calls special send and receive functions that yield on timeout
+
+think about how to extend http, ftp, smtp to use special send and receive
+functions for non-blocking so they can be used in the context of the
+dispatcher!
+
+adjust manual for new sock:send returns.
 check all "require("http")" etc in the manual.
 _VERSION, _DEBUG, etc.
 get rid of "base." kludge

src/buffer.c

@@ -90,9 +90,9 @@ int buf_meth_send(lua_State *L, p_buf buf) {
     if (err != IO_DONE) {
         lua_pushnil(L);
         lua_pushstring(L, buf->io->error(buf->io->ctx, err)); 
-        lua_pushnumber(L, sent);
+        lua_pushnumber(L, sent+start-1);
     } else {
-        lua_pushnumber(L, sent);
+        lua_pushnumber(L, sent+start-1);
         lua_pushnil(L);
         lua_pushnil(L);
     }