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Annotation of elwix/tools/oldlzma/SRC/7zip/Common/OutBuffer.cpp, revision 1.1.1.1

1.1       misho       1: // OutByte.cpp
                      2: 
                      3: #include "StdAfx.h"
                      4: 
                      5: #include "OutBuffer.h"
                      6: 
                      7: #include "../../Common/Alloc.h"
                      8: 
                      9: bool COutBuffer::Create(UInt32 bufferSize)
                     10: {
                     11:   const UInt32 kMinBlockSize = 1;
                     12:   if (bufferSize < kMinBlockSize)
                     13:     bufferSize = kMinBlockSize;
                     14:   if (_buffer != 0 && _bufferSize == bufferSize)
                     15:     return true;
                     16:   Free();
                     17:   _bufferSize = bufferSize;
                     18:   _buffer = (Byte *)::BigAlloc(bufferSize);
                     19:   return (_buffer != 0);
                     20: }
                     21: 
                     22: void COutBuffer::Free()
                     23: {
                     24:   BigFree(_buffer);
                     25:   _buffer = 0;
                     26: }
                     27: 
                     28: void COutBuffer::SetStream(ISequentialOutStream *stream)
                     29: {
                     30:   _stream = stream;
                     31: }
                     32: 
                     33: void COutBuffer::Init()
                     34: {
                     35:   _processedSize = 0;
                     36:   _pos = 0;
                     37:   #ifdef _NO_EXCEPTIONS
                     38:   ErrorCode = S_OK;
                     39:   #endif
                     40: }
                     41: 
                     42: HRESULT COutBuffer::Flush()
                     43: {
                     44:   if (_pos == 0)
                     45:     return S_OK;
                     46:   UInt32 processedSize;
                     47:   HRESULT result = _stream->Write(_buffer, _pos, &processedSize);
                     48:   if (result != S_OK)
                     49:     return result;
                     50:   if (_pos != processedSize)
                     51:     return E_FAIL;
                     52:   _processedSize += processedSize;
                     53:   _pos = 0;
                     54:   return S_OK;
                     55: }
                     56: 
                     57: void COutBuffer::WriteBlock()
                     58: {
                     59:   #ifdef _NO_EXCEPTIONS
                     60:   if (ErrorCode != S_OK)
                     61:     return;
                     62:   #endif
                     63:   HRESULT result = Flush();
                     64:   #ifdef _NO_EXCEPTIONS
                     65:   ErrorCode = result;
                     66:   #else
                     67:   if (result != S_OK)
                     68:     throw COutBufferException(result);
                     69:   #endif
                     70: }