diff options
| 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/InBuffer.h | |
| 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/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 0000000000..76e359a00b --- /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
|