other-licenses/7zstub/src/7zip/Common/LockedStream.cpp

   1 // LockedStream.cpp
   2
   3 #include "StdAfx.h"
   4
   5 #include "LockedStream.h"
   6
   7 HRESULT CLockedInStream::Read(UInt64 startPos, void *data, UInt32 size,
   8   UInt32 *processedSize)
   9 {
  10   NWindows::NSynchronization::CCriticalSectionLock lock(_criticalSection);
  11   RINOK(_stream->Seek(startPos, STREAM_SEEK_SET, NULL));
  12   return _stream->Read(data, size, processedSize);
  13 }
  14
  15 STDMETHODIMP CLockedSequentialInStreamImp::Read(void *data, UInt32 size, UInt32 *processedSize)
  16 {
  17   UInt32 realProcessedSize = 0;
  18   HRESULT result = _lockedInStream->Read(_pos, data, size, &realProcessedSize);
  19   _pos += realProcessedSize;
  20   if (processedSize != NULL)
  21     *processedSize = realProcessedSize;
  22   return result;
  23 }