diff options
Diffstat (limited to '3rdparty/lzma/CPP/7zip/Archive/Common/MultiStream.cpp')
-rw-r--r-- | 3rdparty/lzma/CPP/7zip/Archive/Common/MultiStream.cpp | 49 |
1 files changed, 25 insertions, 24 deletions
diff --git a/3rdparty/lzma/CPP/7zip/Archive/Common/MultiStream.cpp b/3rdparty/lzma/CPP/7zip/Archive/Common/MultiStream.cpp index 04d11cafb43..1de74afe43e 100644 --- a/3rdparty/lzma/CPP/7zip/Archive/Common/MultiStream.cpp +++ b/3rdparty/lzma/CPP/7zip/Archive/Common/MultiStream.cpp @@ -11,10 +11,10 @@ STDMETHODIMP CMultiStream::Read(void *data, UInt32 size, UInt32 *processedSize) if (size == 0) return S_OK; if (_pos >= _totalLength) - return (_pos == _totalLength) ? S_OK : E_FAIL; + return S_OK; { - int left = 0, mid = _streamIndex, right = Streams.Size(); + unsigned left = 0, mid = _streamIndex, right = Streams.Size(); for (;;) { CSubStreamInfo &m = Streams[mid]; @@ -51,15 +51,18 @@ STDMETHODIMP CMultiStream::Read(void *data, UInt32 size, UInt32 *processedSize) STDMETHODIMP CMultiStream::Seek(Int64 offset, UInt32 seekOrigin, UInt64 *newPosition) { - switch(seekOrigin) + switch (seekOrigin) { - case STREAM_SEEK_SET: _pos = offset; break; - case STREAM_SEEK_CUR: _pos = _pos + offset; break; - case STREAM_SEEK_END: _pos = _totalLength + offset; break; + case STREAM_SEEK_SET: break; + case STREAM_SEEK_CUR: offset += _pos; break; + case STREAM_SEEK_END: offset += _totalLength; break; default: return STG_E_INVALIDFUNCTION; } - if (newPosition != 0) - *newPosition = _pos; + if (offset < 0) + return HRESULT_WIN32_ERROR_NEGATIVE_SEEK; + _pos = offset; + if (newPosition) + *newPosition = offset; return S_OK; } @@ -69,7 +72,7 @@ class COutVolumeStream: public ISequentialOutStream, public CMyUnknownImp { - int _volIndex; + unsigned _volIndex; UInt64 _volSize; UInt64 _curPos; CMyComPtr<ISequentialOutStream> _volumeStream; @@ -116,9 +119,9 @@ HRESULT COutVolumeStream::Flush() /* STDMETHODIMP COutMultiStream::Write(const void *data, UInt32 size, UInt32 *processedSize) { - if(processedSize != NULL) + if (processedSize) *processedSize = 0; - while(size > 0) + while (size > 0) { if (_streamIndex >= Streams.Size()) { @@ -154,7 +157,7 @@ STDMETHODIMP COutMultiStream::Write(const void *data, UInt32 size, UInt32 *proce _absPos += realProcessed; if (_absPos > _length) _length = _absPos; - if(processedSize != NULL) + if (processedSize) *processedSize += realProcessed; if (subStream.Pos == subStream.Size) { @@ -169,22 +172,20 @@ STDMETHODIMP COutMultiStream::Write(const void *data, UInt32 size, UInt32 *proce STDMETHODIMP COutMultiStream::Seek(Int64 offset, UInt32 seekOrigin, UInt64 *newPosition) { - if(seekOrigin >= 3) - return STG_E_INVALIDFUNCTION; - switch(seekOrigin) + switch (seekOrigin) { - case STREAM_SEEK_SET: - _absPos = offset; - break; - case STREAM_SEEK_CUR: - _absPos += offset; - break; - case STREAM_SEEK_END: - _absPos = _length + offset; - break; + case STREAM_SEEK_SET: break; + case STREAM_SEEK_CUR: offset += _absPos; break; + case STREAM_SEEK_END: offset += _length; break; + default: return STG_E_INVALIDFUNCTION; } + if (offset < 0) + return HRESULT_WIN32_ERROR_NEGATIVE_SEEK; + _absPos = offset; _offsetPos = _absPos; _streamIndex = 0; + if (newPosition) + *newPosition = offset; return S_OK; } */ |