BACnet router added.

bacnet-stack/demo/router/msgqueue.h

@@ -0,0 +1,85 @@
+/*
+Copyright (C) 2012  Andriy Sukhynyuk, Vasyl Tkhir, Andriy Ivasiv
+
+    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 MSGQUEUE_H
+#define MSGQUEUE_H
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/msg.h>
+#include "bacdef.h"
+#include "npdu.h"
+
+extern pthread_mutex_t msg_lock;
+
+#define INVALID_MSGBOX_ID -1
+
+typedef int MSGBOX_ID;
+
+typedef enum {
+	DATA,
+	SERVICE
+} MSGTYPE;
+
+typedef enum {
+	SHUTDOWN,
+	CHG_IP,
+	CHG_MAC
+} MSGSUBTYPE;
+
+typedef struct _message {
+	MSGBOX_ID origin;
+	MSGTYPE type;
+	MSGSUBTYPE subtype;
+	void *data;
+	// add timestamp
+} BACMSG;
+
+// specific message type data structures
+typedef struct _msg_data {
+	BACNET_ADDRESS dest;
+	BACNET_ADDRESS src;
+	uint8_t *pdu;
+	uint16_t pdu_len;
+	uint8_t ref_count;
+} MSG_DATA;
+
+MSGBOX_ID create_msgbox();
+
+// returns sent byte count
+bool send_to_msgbox(
+		MSGBOX_ID dest,
+		BACMSG *msg);
+
+// returns received message
+BACMSG* recv_from_msgbox(
+		MSGBOX_ID src,
+		BACMSG *msg);
+
+void del_msgbox(
+		MSGBOX_ID msgboxid);
+
+// free message data structure
+void free_data(
+		MSG_DATA *data);
+
+// check message reference counter and delete data if needed
+void check_data(
+		MSG_DATA *data);
+
+#endif /* end of MSGQUEUE_H */