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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
| commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
| tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /other-licenses/7zstub/src/CPP/7zip/Common/InOutTempBuffer.cpp | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip | |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'other-licenses/7zstub/src/CPP/7zip/Common/InOutTempBuffer.cpp')
| -rw-r--r-- | other-licenses/7zstub/src/CPP/7zip/Common/InOutTempBuffer.cpp | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/other-licenses/7zstub/src/CPP/7zip/Common/InOutTempBuffer.cpp b/other-licenses/7zstub/src/CPP/7zip/Common/InOutTempBuffer.cpp new file mode 100644 index 0000000000..d83d67467e --- /dev/null +++ b/other-licenses/7zstub/src/CPP/7zip/Common/InOutTempBuffer.cpp @@ -0,0 +1,127 @@ +// InOutTempBuffer.cpp
+
+#include "StdAfx.h"
+
+#include "../../../C/7zCrc.h"
+
+#include "../../Common/Defs.h"
+
+#include "InOutTempBuffer.h"
+#include "StreamUtils.h"
+
+using namespace NWindows;
+using namespace NFile;
+using namespace NDir;
+
+static const size_t kTempBufSize = (1 << 20);
+
+#define kTempFilePrefixString FTEXT("7zt")
+
+CInOutTempBuffer::CInOutTempBuffer(): _buf(NULL) { }
+
+void CInOutTempBuffer::Create()
+{
+ if (!_buf)
+ _buf = new Byte[kTempBufSize];
+}
+
+CInOutTempBuffer::~CInOutTempBuffer()
+{
+ delete []_buf;
+}
+
+void CInOutTempBuffer::InitWriting()
+{
+ _bufPos = 0;
+ _tempFileCreated = false;
+ _size = 0;
+ _crc = CRC_INIT_VAL;
+}
+
+bool CInOutTempBuffer::WriteToFile(const void *data, UInt32 size)
+{
+ if (size == 0)
+ return true;
+ if (!_tempFileCreated)
+ {
+ if (!_tempFile.CreateRandomInTempFolder(kTempFilePrefixString, &_outFile))
+ return false;
+ _tempFileCreated = true;
+ }
+ UInt32 processed;
+ if (!_outFile.Write(data, size, processed))
+ return false;
+ _crc = CrcUpdate(_crc, data, processed);
+ _size += processed;
+ return (processed == size);
+}
+
+bool CInOutTempBuffer::Write(const void *data, UInt32 size)
+{
+ if (size == 0)
+ return true;
+ size_t cur = kTempBufSize - _bufPos;
+ if (cur != 0)
+ {
+ if (cur > size)
+ cur = size;
+ memcpy(_buf + _bufPos, data, cur);
+ _crc = CrcUpdate(_crc, data, cur);
+ _bufPos += cur;
+ _size += cur;
+ size -= (UInt32)cur;
+ data = ((const Byte *)data) + cur;
+ }
+ return WriteToFile(data, size);
+}
+
+HRESULT CInOutTempBuffer::WriteToStream(ISequentialOutStream *stream)
+{
+ if (!_outFile.Close())
+ return E_FAIL;
+
+ UInt64 size = 0;
+ UInt32 crc = CRC_INIT_VAL;
+
+ if (_bufPos != 0)
+ {
+ RINOK(WriteStream(stream, _buf, _bufPos));
+ crc = CrcUpdate(crc, _buf, _bufPos);
+ size += _bufPos;
+ }
+
+ if (_tempFileCreated)
+ {
+ NIO::CInFile inFile;
+ if (!inFile.Open(_tempFile.GetPath()))
+ return E_FAIL;
+ while (size < _size)
+ {
+ UInt32 processed;
+ if (!inFile.ReadPart(_buf, kTempBufSize, processed))
+ return E_FAIL;
+ if (processed == 0)
+ break;
+ RINOK(WriteStream(stream, _buf, processed));
+ crc = CrcUpdate(crc, _buf, processed);
+ size += processed;
+ }
+ }
+
+ return (_crc == crc && size == _size) ? S_OK : E_FAIL;
+}
+
+/*
+STDMETHODIMP CSequentialOutTempBufferImp::Write(const void *data, UInt32 size, UInt32 *processed)
+{
+ if (!_buf->Write(data, size))
+ {
+ if (processed)
+ *processed = 0;
+ return E_FAIL;
+ }
+ if (processed)
+ *processed = size;
+ return S_OK;
+}
+*/
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