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-rwxr-xr-xCPP/7zip/Compress/CopyCoder.cpp67
1 files changed, 67 insertions, 0 deletions
diff --git a/CPP/7zip/Compress/CopyCoder.cpp b/CPP/7zip/Compress/CopyCoder.cpp
new file mode 100755
index 0000000..da15d04
--- /dev/null
+++ b/CPP/7zip/Compress/CopyCoder.cpp
@@ -0,0 +1,67 @@
+// Compress/CopyCoder.cpp
+
+#include "StdAfx.h"
+
+#include "../../../C/Alloc.h"
+
+#include "../Common/StreamUtils.h"
+
+#include "CopyCoder.h"
+
+namespace NCompress {
+
+static const UInt32 kBufferSize = 1 << 17;
+
+CCopyCoder::~CCopyCoder()
+{
+ ::MidFree(_buffer);
+}
+
+STDMETHODIMP CCopyCoder::Code(ISequentialInStream *inStream,
+ ISequentialOutStream *outStream,
+ const UInt64 * /* inSize */, const UInt64 *outSize,
+ ICompressProgressInfo *progress)
+{
+ if (_buffer == 0)
+ {
+ _buffer = (Byte *)::MidAlloc(kBufferSize);
+ if (_buffer == 0)
+ return E_OUTOFMEMORY;
+ }
+
+ TotalSize = 0;
+ for (;;)
+ {
+ UInt32 size = kBufferSize;
+ if (outSize != 0)
+ if (size > *outSize - TotalSize)
+ size = (UInt32)(*outSize - TotalSize);
+ RINOK(inStream->Read(_buffer, size, &size));
+ if (size == 0)
+ break;
+ if (outStream)
+ {
+ RINOK(WriteStream(outStream, _buffer, size));
+ }
+ TotalSize += size;
+ if (progress != NULL)
+ {
+ RINOK(progress->SetRatioInfo(&TotalSize, &TotalSize));
+ }
+ }
+ return S_OK;
+}
+
+STDMETHODIMP CCopyCoder::GetInStreamProcessedSize(UInt64 *value)
+{
+ *value = TotalSize;
+ return S_OK;
+}
+
+HRESULT CopyStream(ISequentialInStream *inStream, ISequentialOutStream *outStream, ICompressProgressInfo *progress)
+{
+ CMyComPtr<ICompressCoder> copyCoder = new NCompress::CCopyCoder;
+ return copyCoder->Code(inStream, outStream, NULL, NULL, progress);
+}
+
+}