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// OutMemStream.h
#ifndef __OUTMEMSTREAM_H
#define __OUTMEMSTREAM_H
#include "Common/MyCom.h"
#include "MemBlocks.h"
class COutMemStream:
public IOutStream,
public CMyUnknownImp
{
CMemBlockManagerMt *_memManager;
size_t _curBlockIndex;
size_t _curBlockPos;
bool _realStreamMode;
bool _unlockEventWasSent;
NWindows::NSynchronization::CAutoResetEvent StopWritingEvent;
NWindows::NSynchronization::CAutoResetEvent WriteToRealStreamEvent;
// NWindows::NSynchronization::CAutoResetEvent NoLockEvent;
HRESULT StopWriteResult;
CMemLockBlocks Blocks;
UInt64 GetPos() const { return (UInt64)_curBlockIndex * _memManager->GetBlockSize() + _curBlockPos; }
CMyComPtr<ISequentialOutStream> OutSeqStream;
CMyComPtr<IOutStream> OutStream;
public:
HRes CreateEvents()
{
RINOK(StopWritingEvent.CreateIfNotCreated());
return WriteToRealStreamEvent.CreateIfNotCreated();
}
void SetOutStream(IOutStream *outStream)
{
OutStream = outStream;
OutSeqStream = outStream;
}
void SetSeqOutStream(ISequentialOutStream *outStream)
{
OutStream = NULL;
OutSeqStream = outStream;
}
void ReleaseOutStream()
{
OutStream.Release();
OutSeqStream.Release();
}
COutMemStream(CMemBlockManagerMt *memManager): _memManager(memManager) { }
~COutMemStream() { Free(); }
void Free();
void Init();
HRESULT WriteToRealStream();
void DetachData(CMemLockBlocks &blocks);
bool WasUnlockEventSent() const { return _unlockEventWasSent; }
void SetRealStreamMode()
{
_unlockEventWasSent = true;
WriteToRealStreamEvent.Set();
}
/*
void SetNoLockMode()
{
_unlockEventWasSent = true;
NoLockEvent.Set();
}
*/
void StopWriting(HRESULT res)
{
StopWriteResult = res;
StopWritingEvent.Set();
}
MY_UNKNOWN_IMP
STDMETHOD(Write)(const void *data, UInt32 size, UInt32 *processedSize);
STDMETHOD(Seek)(Int64 offset, UInt32 seekOrigin, UInt64 *newPosition);
STDMETHOD(SetSize)(UInt64 newSize);
};
#endif
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