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| author | wolfbeast <mcwerewolf@wolfbeast.com> | 2019-03-29 16:04:01 +0100 |
|---|---|---|
| committer | wolfbeast <mcwerewolf@wolfbeast.com> | 2019-03-29 16:04:01 +0100 |
| commit | 88083f8c683c18f4de68a20c863a82a9da65db8f (patch) | |
| tree | 926656892d9d80260da02ea8ea71031b140c51df /other-licenses/7zstub/src/CPP/7zip/Common/InBuffer.h | |
| parent | f999f544aad04069b03704d994a99352263f600b (diff) | |
| parent | 843e4ceffd6ce21a6e6db37419335eafdc543e18 (diff) | |
| download | UXP-88083f8c683c18f4de68a20c863a82a9da65db8f.tar UXP-88083f8c683c18f4de68a20c863a82a9da65db8f.tar.gz UXP-88083f8c683c18f4de68a20c863a82a9da65db8f.tar.lz UXP-88083f8c683c18f4de68a20c863a82a9da65db8f.tar.xz UXP-88083f8c683c18f4de68a20c863a82a9da65db8f.zip | |
Merge branch 'master' into Sync-weave
Diffstat (limited to 'other-licenses/7zstub/src/CPP/7zip/Common/InBuffer.h')
| -rw-r--r-- | other-licenses/7zstub/src/CPP/7zip/Common/InBuffer.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/other-licenses/7zstub/src/CPP/7zip/Common/InBuffer.h b/other-licenses/7zstub/src/CPP/7zip/Common/InBuffer.h new file mode 100644 index 000000000..76e359a00 --- /dev/null +++ b/other-licenses/7zstub/src/CPP/7zip/Common/InBuffer.h @@ -0,0 +1,92 @@ +// InBuffer.h
+
+#ifndef __IN_BUFFER_H
+#define __IN_BUFFER_H
+
+#include "../../Common/MyException.h"
+#include "../IStream.h"
+
+#ifndef _NO_EXCEPTIONS
+struct CInBufferException: public CSystemException
+{
+ CInBufferException(HRESULT errorCode): CSystemException(errorCode) {}
+};
+#endif
+
+class CInBufferBase
+{
+protected:
+ Byte *_buf;
+ Byte *_bufLim;
+ Byte *_bufBase;
+
+ ISequentialInStream *_stream;
+ UInt64 _processedSize;
+ size_t _bufSize; // actually it's number of Bytes for next read. The buf can be larger
+ // only up to 32-bits values now are supported!
+ bool _wasFinished;
+
+ bool ReadBlock();
+ bool ReadByte_FromNewBlock(Byte &b);
+ Byte ReadByte_FromNewBlock();
+
+public:
+ #ifdef _NO_EXCEPTIONS
+ HRESULT ErrorCode;
+ #endif
+ UInt32 NumExtraBytes;
+
+ CInBufferBase() throw();
+
+ UInt64 GetStreamSize() const { return _processedSize + (_buf - _bufBase); }
+ UInt64 GetProcessedSize() const { return _processedSize + NumExtraBytes + (_buf - _bufBase); }
+ bool WasFinished() const { return _wasFinished; }
+
+ void SetStream(ISequentialInStream *stream) { _stream = stream; }
+
+ void SetBuf(Byte *buf, size_t bufSize, size_t end, size_t pos)
+ {
+ _bufBase = buf;
+ _bufSize = bufSize;
+ _processedSize = 0;
+ _buf = buf + pos;
+ _bufLim = buf + end;
+ _wasFinished = false;
+ #ifdef _NO_EXCEPTIONS
+ ErrorCode = S_OK;
+ #endif
+ NumExtraBytes = 0;
+ }
+
+ void Init() throw();
+
+ MY_FORCE_INLINE
+ bool ReadByte(Byte &b)
+ {
+ if (_buf >= _bufLim)
+ return ReadByte_FromNewBlock(b);
+ b = *_buf++;
+ return true;
+ }
+
+ MY_FORCE_INLINE
+ Byte ReadByte()
+ {
+ if (_buf >= _bufLim)
+ return ReadByte_FromNewBlock();
+ return *_buf++;
+ }
+
+ size_t ReadBytes(Byte *buf, size_t size);
+ size_t Skip(size_t size);
+};
+
+class CInBuffer: public CInBufferBase
+{
+public:
+ ~CInBuffer() { Free(); }
+ bool Create(size_t bufSize) throw(); // only up to 32-bits values now are supported!
+ void Free() throw();
+};
+
+#endif
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