1 files changed, 134 insertions, 0 deletions
diff --git a/flow/asyncschedule.h b/flow/asyncschedule.h
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+++ b/flow/asyncschedule.h
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+    /*
+
+    Copyright (C) 2000 Stefan Westerfeld
+                       stefan@space.twc.de
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+  
+    This library 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
+    Library General Public License for more details.
+   
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+    Boston, MA 02111-1307, USA.
+
+    */
+
+#ifndef ASYNCSCHEDULE_H
+#define ASYNCSCHEDULE_H
+
+#include "gslschedule.h"
+#include "datapacket.h"
+#include "weakreference.h"
+
+#include <queue>
+
+/*
+ * BC - Status (2002-03-08): ASyncNetSend, ASyncNetReceive, ASyncPort.
+ *
+ * None of these classes is considered part of the public API. Do NOT use it
+ * in your apps. These are part of the implementation of libartsflow's
+ * StdFlowSystem, and subject to change with the needs of it.
+ */
+
+namespace Arts {
+
+class ASyncPort;
+class ASyncNetSend : public FlowSystemSender_skel
+{
+protected:
+	ASyncPort *ap;
+	std::queue<GenericDataPacket *> pqueue;
+	FlowSystemReceiver receiver;
+	long receiveHandlerID;
+	std::string _dest;
+
+public:
+	ASyncNetSend(ASyncPort *ap, const std::string& dest);
+	~ASyncNetSend();
+	long notifyID();
+	std::string dest();
+
+	/* this overwrites the Object::notify function */
+	void notify(const Notification& notification);
+	void processed();
+	void setReceiver(FlowSystemReceiver receiver);
+	void disconnect();
+};
+
+class ASyncNetReceive : public FlowSystemReceiver_skel,
+						public GenericDataChannel
+{
+protected:
+	GenericAsyncStream *stream;
+	FlowSystemSender sender;
+	Notification gotPacketNotification;
+	std::list<GenericDataPacket *> sent;
+	long _receiveHandlerID;
+
+public:
+	ASyncNetReceive(ASyncPort *port, FlowSystemSender sender);
+	~ASyncNetReceive();
+
+	// GenericDataChannel interface
+	void processedPacket(GenericDataPacket *packet);
+	void sendPacket(GenericDataPacket *packet);
+	void setPull(int packets, int capacity);
+	void endPull();
+
+	// FlowSystemReceiver interface
+	
+	long receiveHandlerID();
+	void disconnect();
+	void receive(Buffer *buffer);	// custom data receiver
+};
+
+class ASyncPort :public Port, public GenericDataChannel {
+protected:
+	long notifyID;
+	std::vector<Notification> subscribers;
+	std::list<GenericDataPacket *> sent;
+	std::list<ASyncNetSend *> netSenders;
+	WeakReference<FlowSystemReceiver> netReceiver;
+
+	GenericAsyncStream *stream;
+
+	bool pull;
+	Notification pullNotification;
+
+public:
+	// GenericDataChannel interface
+	void processedPacket(GenericDataPacket *packet);
+	void sendPacket(GenericDataPacket *packet);
+	void setPull(int packets, int capacity);
+	void endPull();
+
+	// Port interface
+	ASyncPort(const std::string& name, void *ptr, long flags,
+			  StdScheduleNode* parent);
+	~ASyncPort();
+
+	void connect(Port *port);
+	void disconnect(Port *port);
+	ASyncPort *asyncPort();
+
+	// Network transparency
+	void addSendNet(ASyncNetSend *netsend);			// send
+	void removeSendNet(ASyncNetSend *netsend);
+	void disconnectRemote(const std::string& dest);
+
+	long receiveNetNotifyID();						// receive
+	GenericAsyncStream *receiveNetCreateStream();
+	NotificationClient *receiveNetObject();
+	void setNetReceiver(ASyncNetReceive *receiver);
+};
+
+}
+
+#endif /* ASYNCSCHEDULE_H */