81 lines
3.2 KiB
C
81 lines
3.2 KiB
C
|
/*
|
||
|
|
*
|
||
|
|
* @APPLE_LICENSE_HEADER_START@
|
||
|
|
*
|
||
|
|
* Copyright (c) 1999-2008 Apple Inc. All Rights Reserved.
|
||
|
|
*
|
||
|
|
* This file contains Original Code and/or Modifications of Original Code
|
||
|
|
* as defined in and that are subject to the Apple Public Source License
|
||
|
|
* Version 2.0 (the 'License'). You may not use this file except in
|
||
|
|
* compliance with the License. Please obtain a copy of the License at
|
||
|
|
* http://www.opensource.apple.com/apsl/ and read it before using this
|
||
|
|
* file.
|
||
|
|
*
|
||
|
|
* The Original Code and all software distributed under the License are
|
||
|
|
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
|
||
|
|
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
|
||
|
|
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
|
||
|
|
* Please see the License for the specific language governing rights and
|
||
|
|
* limitations under the License.
|
||
|
|
*
|
||
|
|
* @APPLE_LICENSE_HEADER_END@
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
/*
|
||
|
|
File: QTSSStream.h
|
||
|
|
|
||
|
|
Contains: Abstract base class containing the prototypes for generalized
|
||
|
|
stream functions.
|
||
|
|
|
||
|
|
Any server object that wants to act as a QTSS_StreamRef should
|
||
|
|
derive off of this and implement one or more of the stream APIs.
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
#ifndef __QTSS_STREAM_H__
|
||
|
|
#define __QTSS_STREAM_H__
|
||
|
|
|
||
|
|
#include "QTSS.h"
|
||
|
|
#include "Task.h"
|
||
|
|
|
||
|
|
class QTSSStream
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
|
||
|
|
QTSSStream() : fTask(NULL) {}
|
||
|
|
virtual ~QTSSStream() {}
|
||
|
|
|
||
|
|
//
|
||
|
|
// A stream can have a task associated with it. If this stream supports
|
||
|
|
// async I/O, the task is needed to know what to wakeup when there is an event
|
||
|
|
void SetTask(Task* inTask) { fTask = inTask; }
|
||
|
|
Task* GetTask() { return fTask; }
|
||
|
|
|
||
|
|
virtual QTSS_Error Read(void* /*ioBuffer*/, UInt32 /*inLen*/, UInt32* /*outLen*/)
|
||
|
|
{ return QTSS_Unimplemented; }
|
||
|
|
|
||
|
|
virtual QTSS_Error Write(void* /*inBuffer*/, UInt32 /*inLen*/, UInt32* /*outLenWritten*/, UInt32 /*inFlags*/)
|
||
|
|
{ return QTSS_Unimplemented; }
|
||
|
|
|
||
|
|
virtual QTSS_Error WriteV(iovec* /*inVec*/, UInt32 /*inNumVectors*/, UInt32 /*inTotalLength*/, UInt32* /*outLenWritten*/)
|
||
|
|
{ return QTSS_Unimplemented; }
|
||
|
|
|
||
|
|
virtual QTSS_Error Flush() { return QTSS_Unimplemented; }
|
||
|
|
|
||
|
|
virtual QTSS_Error Seek(UInt64 /*inNewPosition*/) { return QTSS_Unimplemented; }
|
||
|
|
|
||
|
|
virtual QTSS_Error Advise(UInt64 /*inPosition*/, UInt32 /*inAdviseSize*/)
|
||
|
|
{ return QTSS_Unimplemented; }
|
||
|
|
|
||
|
|
virtual QTSS_Error RequestEvent(QTSS_EventType /*inEventMask*/)
|
||
|
|
{ return QTSS_Unimplemented; }
|
||
|
|
|
||
|
|
private:
|
||
|
|
|
||
|
|
Task* fTask;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif //__QTSS_STREAM_H__
|