haiku/src/servers/registrar/EventMaskWatcher.h

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//------------------------------------------------------------------------------
// Copyright (c) 2001-2002, OpenBeOS
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
// File Name: EventMaskWatcher.h
// Author: Ingo Weinhold (bonefish@users.sf.net)
// Description: EventMaskWatcher is a Watcher extended by an event mask.
// EventMaskWatcherFilter filters EventMaskWatchers with
// respect to their event mask and a specific event.
//------------------------------------------------------------------------------
#ifndef EVENT_MASK_WATCHER_H
#define EVENT_MASK_WATCHER_H
#include "Watcher.h"
// EventMaskWatcher
class EventMaskWatcher : public Watcher {
public:
EventMaskWatcher(const BMessenger &target, uint32 eventMask);
uint32 EventMask() const;
private:
uint32 fEventMask;
};
// EventMaskWatcherFilter
class EventMaskWatcherFilter : public WatcherFilter {
public:
EventMaskWatcherFilter(uint32 event);
virtual bool Filter(Watcher *watcher, BMessage *message);
private:
uint32 fEvent;
};
#endif // EVENT_MASK_WATCHER_H