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135 lines
3.6 KiB
135 lines
3.6 KiB
/*
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Copyright (C) 2000 Stefan Westerfeld
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stefan@space.twc.de
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#ifndef ASYNCSCHEDULE_H
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#define ASYNCSCHEDULE_H
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#include "gslschedule.h"
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#include "datapacket.h"
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#include "weakreference.h"
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#include <queue>
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/*
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* BC - Status (2002-03-08): ASyncNetSend, ASyncNetReceive, ASyncPort.
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*
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* None of these classes is considered part of the public API. Do NOT use it
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* in your apps. These are part of the implementation of libartsflow's
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* StdFlowSystem, and subject to change with the needs of it.
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*/
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namespace Arts {
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class ASyncPort;
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class ASyncNetSend : public FlowSystemSender_skel
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{
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protected:
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ASyncPort *ap;
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std::queue<GenericDataPacket *> pqueue;
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FlowSystemReceiver receiver;
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long receiveHandlerID;
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std::string _dest;
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public:
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ASyncNetSend(ASyncPort *ap, const std::string& dest);
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~ASyncNetSend();
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long notifyID();
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std::string dest();
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/* this overwrites the Object::notify function */
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void notify(const Notification& notification);
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void processed();
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void setReceiver(FlowSystemReceiver receiver);
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void disconnect();
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};
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class ASyncNetReceive : public FlowSystemReceiver_skel,
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public GenericDataChannel
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{
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protected:
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GenericAsyncStream *stream;
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FlowSystemSender sender;
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Notification gotPacketNotification;
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std::list<GenericDataPacket *> sent;
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long _receiveHandlerID;
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public:
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ASyncNetReceive(ASyncPort *port, FlowSystemSender sender);
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~ASyncNetReceive();
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// GenericDataChannel interface
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void processedPacket(GenericDataPacket *packet);
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void sendPacket(GenericDataPacket *packet);
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void setPull(int packets, int capacity);
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void endPull();
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// FlowSystemReceiver interface
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long receiveHandlerID();
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void disconnect();
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void receive(Buffer *buffer); // custom data receiver
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};
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class ASyncPort :public Port, public GenericDataChannel {
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protected:
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long notifyID;
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std::vector<Notification> subscribers;
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std::list<GenericDataPacket *> sent;
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std::list<ASyncNetSend *> netSenders;
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WeakReference<FlowSystemReceiver> netReceiver;
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GenericAsyncStream *stream;
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bool pull;
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Notification pullNotification;
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public:
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// GenericDataChannel interface
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void processedPacket(GenericDataPacket *packet);
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void sendPacket(GenericDataPacket *packet);
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void setPull(int packets, int capacity);
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void endPull();
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// Port interface
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ASyncPort(const std::string& name, void *ptr, long flags,
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StdScheduleNode* parent);
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~ASyncPort();
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void connect(Port *port);
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void disconnect(Port *port);
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ASyncPort *asyncPort();
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// Network transparency
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void addSendNet(ASyncNetSend *netsend); // send
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void removeSendNet(ASyncNetSend *netsend);
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void disconnectRemote(const std::string& dest);
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long receiveNetNotifyID(); // receive
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GenericAsyncStream *receiveNetCreateStream();
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NotificationClient *receiveNetObject();
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void setNetReceiver(ASyncNetReceive *receiver);
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};
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}
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#endif /* ASYNCSCHEDULE_H */
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