2 Copyright 2007 Chris Tallon
4 This file is part of VOMP.
6 VOMP is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 VOMP is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with VOMP; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
21 #ifndef EVENTDISPATCHER_H
22 #define EVENTDISPATCHER_H
30 #include "threadwin.h"
38 class EDReceiver //(implementation in eventdispatcher.cc)
40 friend class EventDispatcher;
44 virtual ~EDReceiver();
47 virtual void call(void* userTag, bool& r_deregisterEDR, bool& r_wakeThread, bool& deleteEDR)=0; // Implementor must override this and do the actual call
48 // In the call set the following bools:
49 // r_deregisterEDR: true = remove EDReceiver from list after call
50 // r_wakeThread: true = wake up a RequestResponse thread which is waiting for a VDR response
51 // r_deleteEDR: true = delete the EDReceiver object once the call has finished
66 typedef list<EDReceiver*> EDRL;
69 virtual ~EventDispatcher() {};
72 void edRegister(EDReceiver* edr);
73 void edUnregister(EDReceiver* edr);
74 bool edFindAndCall(void* userTag);
77 void edSleepThisReceiver(EDReceiver* edr);
79 // EventDispatcher implementor must override the following. When edFindAndCall is called,
80 // The EventDispatcher class will call ed_cb_find() on each receiver until the implementor
81 // returns true = this is the receiver to call.
82 virtual bool ed_cb_find(EDReceiver* edr, void* userTag)=0;
87 pthread_mutex_t mutex;