xref: /aosp_15_r20/external/lzma/CPP/7zip/Common/StreamUtils.h (revision f6dc9357d832569d4d1f5d24eacdb3935a1ae8e6)

// StreamUtils.h

#ifndef ZIP7_INC_STREAM_UTILS_H
#define ZIP7_INC_STREAM_UTILS_H

#include "../IStream.h"

inline HRESULT InStream_SeekSet(IInStream *stream, UInt64 offset) throw()
  {  return stream->Seek((Int64)offset, STREAM_SEEK_SET, NULL); }
inline HRESULT InStream_GetPos(IInStream *stream, UInt64 &curPosRes) throw()
  {  return stream->Seek(0, STREAM_SEEK_CUR, &curPosRes); }
inline HRESULT InStream_GetSize_SeekToEnd(IInStream *stream, UInt64 &sizeRes) throw()
  { return stream->Seek(0, STREAM_SEEK_END, &sizeRes); }

HRESULT InStream_SeekToBegin(IInStream *stream) throw();
HRESULT InStream_AtBegin_GetSize(IInStream *stream, UInt64 &size) throw();
HRESULT InStream_GetPos_GetSize(IInStream *stream, UInt64 &curPosRes, UInt64 &sizeRes) throw();

inline HRESULT InStream_GetSize_SeekToBegin(IInStream *stream, UInt64 &sizeRes) throw()
{
  RINOK(InStream_SeekToBegin(stream))
  return InStream_AtBegin_GetSize(stream, sizeRes);
}


HRESULT ReadStream(ISequentialInStream *stream, void *data, size_t *size) throw();
HRESULT ReadStream_FALSE(ISequentialInStream *stream, void *data, size_t size) throw();
HRESULT ReadStream_FAIL(ISequentialInStream *stream, void *data, size_t size) throw();
HRESULT WriteStream(ISequentialOutStream *stream, const void *data, size_t size) throw();

#endif