add DatagramService which is pretty much the same as Connection... they probably should be unified.

@@ -5,6 +5,7 @@ nobase_include_HEADERS = trcomm.h \
 			 tr/connect_entry_point.h \
 			 tr/connection.h \
 			 tr/connector.h \
+			 tr/datagram_service.h \
 			 tr/io_handler.h \
 			 tr/proto_message.h \
 			 tr/protocol.h \

@@ -45,9 +45,6 @@ TR_CLASSVARS_DECL(TR_Connection) {
 #define TR_CON_EVENT_NEW_CON  (TR_CEP_EVENT_MAX + 1)
 #define TR_CON_EVENT_MAX      ((size_t)TR_CON_EVENT_NEW_CON)
 
-TR_ProtoMessage TR_conNextMessage(TR_Connection);
-int             TR_conCompose(TR_Connection, TR_ProtoMessage);
-
 #endif // __TR_CONNECTION_H__
 
 // vim: set ts=4 sw=4:

+/**
+ * \file
+ *
+ * \author	Georg Hopp
+ *
+ * \copyright
+ * Copyright © 2014 Georg Hopp
+ *
+ * This program 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __TR_DATAGRAM_SERVICE_H__
+#define __TR_DATAGRAM_SERVICE_H__
+
+#include <sys/types.h>
+
+#include "trbase.h"
+#include "trevent.h"
+#include "trdata.h"
+
+#include "tr/comm_end_point.h"
+#include "tr/proto_message.h"
+
+TR_CLASS(TR_DatagramService) {
+	TR_EXTENDS(TR_CommEndPoint);
+};
+TR_INSTANCE_INIT(TR_DatagramService);
+TR_CLASSVARS_DECL(TR_DatagramService) {
+	TR_CV_EXTENDS(TR_CommEndPoint);
+};
+
+TR_ProtoMessage TR_dsNextMessage(TR_DatagramService);
+int             TR_dsCompose(TR_DatagramService, TR_ProtoMessage);
+
+#endif // __TR_DATAGRAM_SERVICE_H__
+
+// vim: set ts=4 sw=4:
+

@@ -7,6 +7,7 @@
 #include "tr/connect_entry_point.h"
 #include "tr/connection.h"
 #include "tr/connector.h"
+#include "tr/datagram_service.h"
 #include "tr/io_handler.h"
 #include "tr/proto_message.h"
 #include "tr/protocol.h"

@@ -17,6 +17,7 @@ TRCOMM = cep_append_read_data.c \
 	 conn_entry_point.c \
 	 connection.c \
 	 connector.c \
+	 datagram_service.c \
 	 io_handler.c \
 	 proto_message.c \
 	 protocol.c \

+/**
+ * \file
+ *
+ * \author	Georg Hopp
+ *
+ * \copyright
+ * Copyright © 2014 Georg Hopp
+ *
+ * This program 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdarg.h>
+#include <stdint.h>
+
+#include <sys/types.h>
+
+#include "trbase.h"
+#include "trio.h"
+#include "trdata.h"
+
+#include "tr/datagram_service.h"
+#include "tr/interface/protocol.h"
+#include "tr/interface/comm_end_point.h"
+
+static
+int
+datagramServiceCtor(void * _this, va_list * params)
+{
+	TR_PARENTCALL(TR_DatagramService, _this, TR_Class, ctor, params);
+
+	return 0;
+}
+
+static
+void
+datagramServiceDtor(void * _this)
+{
+	TR_PARENTCALL(TR_DatagramService, _this, TR_Class, dtor);
+}
+
+static
+TR_ProtoMessage
+datagramServiceNextMessage(void * _this)
+{
+	TR_CommEndPoint    comm        = _this;
+	TR_RemoteData      data        = TR_queueGet(comm->read_buffer);
+	TR_ProtoMessage    ret_message = NULL;
+	size_t             end;
+
+	if (NULL == data) return ret_message;
+
+	ret_message = TR_protoCreateMessage(comm->protocol, data->remote);
+	end         = TR_protoParse(comm->protocol, ret_message, data);
+
+	if (end != ((TR_SizedData)data)->size) {
+		/**
+		 * TODO
+		 * This means that the parser has not consumed all of the data.
+		 * We do not know the reason, but with HTTP this should only occur
+		 * when the message is complete... anyway, to prevent us from
+		 * looping forever because a protocol implementation is buggy
+		 * we should close the connection after end was 0 the second time.
+		 * This can be done by firing a close event.
+		 */
+		switch(end) {
+			default:
+				{
+					TR_RemoteData new_data = TR_new(
+							TR_RemoteData,
+							((TR_SizedData)data)->data + end,
+							((TR_SizedData)data)->size - end,
+							data->remote);
+					TR_delete(data);
+					data = new_data;
+				}
+				// intended drop through
+
+			case 0:
+				TR_queuePutFirst(comm->read_buffer, data);
+		}
+	}
+
+	if (! ret_message->ready) {
+		TR_delete(ret_message);
+	}
+
+	return ret_message;
+}
+
+static
+void
+datagramServiceCompose(void * _this, TR_ProtoMessage message)
+{
+	TR_queuePut(
+			((TR_CommEndPoint)_this)->write_buffer,
+			TR_protoCompose(((TR_CommEndPoint)_this)->protocol, message));
+}
+
+intptr_t datagramService_events[TR_CEP_EVENT_MAX + 1];
+TR_INIT_IFACE(TR_Class, datagramServiceCtor, datagramServiceDtor, NULL);
+TR_INIT_IFACE(
+		TR_CommEndPoint,
+		datagramServiceNextMessage,
+		datagramServiceCompose);
+TR_CREATE_CLASS(
+		TR_DatagramService,
+		TR_CommEndPoint,
+		NULL,
+		TR_IF(TR_Class),
+		TR_IF(TR_CommEndPoint)) = {
+	{{
+		TR_CEP_EVENT_MAX + 1,
+		datagramService_events
+	}}
+};
+
+// vim: set ts=4 sw=4:

@@ -39,7 +39,7 @@ testHandlerNewMessage(TR_EventHandler this, TR_Event event)
 	for (i = 0; buf[i]; i++) {
 		if (! isprint(buf[i])) buf[i] = '.';
 	}
-//    printf("echo message: %s(%zd)\n", buf, data->size);
+    printf("echo message: %s(%zd)\n", buf, data->size);
 
 	TR_eventHandlerIssueEvent(
 			(TR_EventHandler)this,
@@ -130,8 +130,13 @@ main (int argc, char * argv[])
 	TR_IoHandler       io_handler       = TR_new(TR_IoHandler);
 	TR_ProtocolHandler protocol_handler = TR_new(TR_ProtocolHandler);
 	TestHandler        test_handler     = TR_new(TestHandler);
+#if 0
 	TR_ConnEntryPoint  ep;
 	TR_TcpSocket       ep_sock;
+#else
+	TR_DatagramService ep;
+	TR_UdpSocket       ep_sock;
+#endif
 	TR_Protocol        protocol;
 
 	TR_logger = TR_INSTANCE_CAST(TR_Logger, mylogger);
@@ -147,8 +152,15 @@ main (int argc, char * argv[])
 			(TR_EventHandler)test_handler);
 
 	protocol = TR_new(TR_ProtocolRaw);
+#if 0
 	ep_sock  = TR_new(TR_TcpSocket, TR_logger, "0.0.0.0", 5678, 0);
 	ep       = TR_new(TR_ConnEntryPoint, ep_sock, protocol);
+#else
+	ep_sock  = TR_new(TR_UdpSocket, TR_logger, "0.0.0.0", 5678, 0);
+	TR_socketBind((TR_Socket)ep_sock);
+	TR_socketNonblock((TR_Socket)ep_sock);
+	ep       = TR_new(TR_DatagramService, ep_sock, protocol);
+#endif
 
 	TR_commManagerAddEndpoint(cmgr, (TR_CommEndPoint)ep);