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authorwolfbeast <mcwerewolf@wolfbeast.com>2019-03-29 16:04:01 +0100
committerwolfbeast <mcwerewolf@wolfbeast.com>2019-03-29 16:04:01 +0100
commit88083f8c683c18f4de68a20c863a82a9da65db8f (patch)
tree926656892d9d80260da02ea8ea71031b140c51df /other-licenses/7zstub/src/CPP/7zip/Archive/Common/InStreamWithCRC.cpp
parentf999f544aad04069b03704d994a99352263f600b (diff)
parent843e4ceffd6ce21a6e6db37419335eafdc543e18 (diff)
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Merge branch 'master' into Sync-weave
Diffstat (limited to 'other-licenses/7zstub/src/CPP/7zip/Archive/Common/InStreamWithCRC.cpp')
-rw-r--r--other-licenses/7zstub/src/CPP/7zip/Archive/Common/InStreamWithCRC.cpp46
1 files changed, 46 insertions, 0 deletions
diff --git a/other-licenses/7zstub/src/CPP/7zip/Archive/Common/InStreamWithCRC.cpp b/other-licenses/7zstub/src/CPP/7zip/Archive/Common/InStreamWithCRC.cpp
new file mode 100644
index 000000000..cddc083d6
--- /dev/null
+++ b/other-licenses/7zstub/src/CPP/7zip/Archive/Common/InStreamWithCRC.cpp
@@ -0,0 +1,46 @@
+// InStreamWithCRC.cpp
+
+#include "StdAfx.h"
+
+#include "InStreamWithCRC.h"
+
+STDMETHODIMP CSequentialInStreamWithCRC::Read(void *data, UInt32 size, UInt32 *processedSize)
+{
+ UInt32 realProcessed = 0;
+ HRESULT result = S_OK;
+ if (_stream)
+ result = _stream->Read(data, size, &realProcessed);
+ _size += realProcessed;
+ if (size != 0 && realProcessed == 0)
+ _wasFinished = true;
+ _crc = CrcUpdate(_crc, data, realProcessed);
+ if (processedSize)
+ *processedSize = realProcessed;
+ return result;
+}
+
+STDMETHODIMP CInStreamWithCRC::Read(void *data, UInt32 size, UInt32 *processedSize)
+{
+ UInt32 realProcessed = 0;
+ HRESULT result = S_OK;
+ if (_stream)
+ result = _stream->Read(data, size, &realProcessed);
+ _size += realProcessed;
+ /*
+ if (size != 0 && realProcessed == 0)
+ _wasFinished = true;
+ */
+ _crc = CrcUpdate(_crc, data, realProcessed);
+ if (processedSize)
+ *processedSize = realProcessed;
+ return result;
+}
+
+STDMETHODIMP CInStreamWithCRC::Seek(Int64 offset, UInt32 seekOrigin, UInt64 *newPosition)
+{
+ if (seekOrigin != STREAM_SEEK_SET || offset != 0)
+ return E_FAIL;
+ _size = 0;
+ _crc = CRC_INIT_VAL;
+ return _stream->Seek(offset, seekOrigin, newPosition);
+}