Moved httpd library from ewsgi/connectors/standalone/lib/httpd to httpd.

Reused the http_network library as well inside httpd library.

library/server/httpd/concurrency/thread/httpd_connection_handler.e

@@ -0,0 +1,103 @@
+note
+	description: "[
+			Implementation of HTTPD_CONNECTION_HANDLER_I for concurrency mode: Thread
+		]"
+	date: "$Date$"
+	revision: "$Revision$"
+
+class
+	HTTPD_CONNECTION_HANDLER
+
+inherit
+	HTTPD_CONNECTION_HANDLER_I
+		redefine
+			initialize
+		end
+
+create
+	make
+
+feature {NONE} -- Initialization
+
+	initialize
+		local
+			n: INTEGER
+		do
+			n := max_concurrent_connections (server).max (1) -- At least one thread!
+			create pool.make (n.to_natural_32)
+		end
+
+feature -- Access
+
+	is_shutdown_requested: BOOLEAN
+
+	max_concurrent_connections (a_server: like server): INTEGER
+		do
+			Result := a_server.configuration.max_concurrent_connections
+		end
+
+feature {HTTPD_SERVER_I} -- Execution
+
+	shutdown
+		do
+			if not is_shutdown_requested then
+				is_shutdown_requested := True
+				pool_gracefull_stop (pool)
+			end
+		end
+
+	pool_gracefull_stop (p: like pool)
+		do
+			p.terminate
+		end
+
+	accept_incoming_connection (a_listening_socket: HTTPD_STREAM_SOCKET)
+		local
+			cl: separate HTTPD_STREAM_SOCKET
+		do
+			debug ("dbglog")
+				dbglog (generator + ".ENTER accept_connection {"+ a_listening_socket.descriptor.out +"}")
+			end
+
+			if is_shutdown_requested then
+					-- cancel
+			elseif attached factory.new_handler as h then
+				cl := h.client_socket
+				a_listening_socket.accept_to (cl)
+				if h.is_connected then
+					pool.add_work (agent h.safe_execute)
+				end
+			end
+
+			debug ("dbglog")
+				dbglog (generator + ".LEAVE accept_incoming_connection {"+ a_listening_socket.descriptor.out +"}")
+			end
+		end
+
+feature {HTTPD_SERVER_I} -- Status report
+
+	wait_for_completion
+			-- Wait until Current is ready for shutdown
+		do
+			pool.wait_for_completion
+		end
+
+feature {NONE} -- Access
+
+	pool: THREAD_POOL [HTTPD_REQUEST_HANDLER] --ANY] --POOLED_THREAD [HTTP_REQUEST_HANDLER]]
+			-- Pool of concurrent connection handlers.
+
+invariant
+	pool_attached: pool /= Void
+
+note
+	copyright: "2011-2015, Jocelyn Fiat, Javier Velilla, Eiffel Software and others"
+	license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"
+	source: "[
+			Eiffel Software
+			5949 Hollister Ave., Goleta, CA 93117 USA
+			Telephone 805-685-1006, Fax 805-685-6869
+			Website http://www.eiffel.com
+			Customer support http://support.eiffel.com
+		]"
+end