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/*
* libjingle
* Copyright 2004--2005, Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef TALK_BASE_ASYNCFILE_H__
#define TALK_BASE_ASYNCFILE_H__
#include "talk/base/sigslot.h"
namespace talk_base {
// Provides the ability to perform file I/O asynchronously.
// TODO: Create a common base class with AsyncSocket.
class AsyncFile {
public:
virtual ~AsyncFile() {}
// Determines whether the file will receive read events.
virtual bool readable() = 0;
virtual void set_readable(bool value) = 0;
// Determines whether the file will receive write events.
virtual bool writable() = 0;
virtual void set_writable(bool value) = 0;
sigslot::signal1<AsyncFile*> SignalReadEvent;
sigslot::signal1<AsyncFile*> SignalWriteEvent;
sigslot::signal2<AsyncFile*,int> SignalCloseEvent;
};
} // namespace talk_base
#endif // TALK_BASE_ASYNCFILE_H__
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