72 lines
1.7 KiB
C++
72 lines
1.7 KiB
C++
// Filename: eventQueue.h
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// Created by: drose (08Feb99)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) 2001, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://www.panda3d.org/license.txt .
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//
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// To contact the maintainers of this program write to
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// panda3d@yahoogroups.com .
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//
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////////////////////////////////////////////////////////////////////
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#ifndef EVENTQUEUE_H
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#define EVENTQUEUE_H
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#include "pandabase.h"
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#include "event.h"
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#include "pt_Event.h"
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#include <circBuffer.h>
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#ifdef OLD_HAVE_IPC
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#include <ipc_mutex.h>
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#endif
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////////////////////////////////////////////////////////////////////
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// Class : EventQueue
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// Description : A queue of pending events. As events are thrown,
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// they are added to this queue; eventually, they will
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// be extracted out again by an EventHandler and
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// processed.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDAEXPRESS EventQueue {
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public:
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enum { max_events = 500 };
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PUBLISHED:
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EventQueue();
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~EventQueue();
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void queue_event(CPT_Event event);
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void clear();
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bool is_queue_empty() const;
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bool is_queue_full() const;
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CPT_Event dequeue_event();
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INLINE static EventQueue *
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get_global_event_queue();
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protected:
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CircBuffer<CPT_Event, max_events> _queue;
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static void make_global_event_queue();
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static EventQueue *_global_event_queue;
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#ifdef OLD_HAVE_IPC
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mutex _lock;
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#endif
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};
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#include "eventQueue.I"
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#endif
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