142 static SRes Xz_ReadBackward(CXzStream *p, ILookInStream *stream, Int64 *startOffset, ISzAlloc *allo…  in Xz_ReadBackward()  argument
147   if ((*startOffset & 3) != 0 || *startOffset < XZ_STREAM_FOOTER_SIZE)  in Xz_ReadBackward()
149   *startOffset = -XZ_STREAM_FOOTER_SIZE;  in Xz_ReadBackward()
150   RINOK(SeekFromCur(stream, startOffset));  in Xz_ReadBackward()
157     *startOffset += XZ_STREAM_FOOTER_SIZE;  in Xz_ReadBackward()
163       if (*startOffset < XZ_STREAM_FOOTER_SIZE || total > (1 << 16))  in Xz_ReadBackward()
165       i = (*startOffset > TEMP_BUF_SIZE) ? TEMP_BUF_SIZE : (size_t)*startOffset;  in Xz_ReadBackward()
167       *startOffset = -(Int64)i;  in Xz_ReadBackward()
168       RINOK(SeekFromCur(stream, startOffset));  in Xz_ReadBackward()
177         *startOffset += i;  in Xz_ReadBackward()
181     if (*startOffset < XZ_STREAM_FOOTER_SIZE)  in Xz_ReadBackward()
183     *startOffset -= XZ_STREAM_FOOTER_SIZE;  in Xz_ReadBackward()
184     RINOK(stream->Seek(stream, startOffset, SZ_SEEK_SET));  in Xz_ReadBackward()
200   *startOffset = -(Int64)(indexSize + XZ_STREAM_FOOTER_SIZE);  in Xz_ReadBackward()
201   RINOK(SeekFromCur(stream, startOffset));  in Xz_ReadBackward()
212     *startOffset = -(Int64)sum;  in Xz_ReadBackward()
213     RINOK(SeekFromCur(stream, startOffset));  in Xz_ReadBackward()
274 SRes Xzs_ReadBackward(CXzs *p, ILookInStream *stream, Int64 *startOffset, ICompressProgress *progre…  in Xzs_ReadBackward()  argument
278   *startOffset = endOffset;  in Xzs_ReadBackward()
284     res = Xz_ReadBackward(&st, stream, startOffset, alloc);  in Xzs_ReadBackward()
285     st.startOffset = *startOffset;  in Xzs_ReadBackward()
300     if (*startOffset == 0)  in Xzs_ReadBackward()
302     RINOK(stream->Seek(stream, startOffset, SZ_SEEK_SET));  in Xzs_ReadBackward()
303 …if (progress && progress->Progress(progress, endOffset - *startOffset, (UInt64)(Int64)-1) != SZ_OK)  in Xzs_ReadBackward()