misc/libphysfs/lzma/C/Archive/7z/7zExtract.h
author nemo
Mon, 10 Apr 2017 12:06:43 -0400
changeset 12213 bb5522e88ab2
permissions -rw-r--r--
bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
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/* 7zExtract.h */
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#ifndef __7Z_EXTRACT_H
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#define __7Z_EXTRACT_H
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#include "7zIn.h"
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/*
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  SzExtract extracts file from archive
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  *outBuffer must be 0 before first call for each new archive. 
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  Extracting cache:
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    If you need to decompress more than one file, you can send 
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    these values from previous call:
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      *blockIndex, 
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      *outBuffer, 
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      *outBufferSize
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    You can consider "*outBuffer" as cache of solid block. If your archive is solid, 
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    it will increase decompression speed.
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    If you use external function, you can declare these 3 cache variables 
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    (blockIndex, outBuffer, outBufferSize) as static in that external function.
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    Free *outBuffer and set *outBuffer to 0, if you want to flush cache.
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*/
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SZ_RESULT SzExtract(
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    ISzInStream *inStream, 
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    CArchiveDatabaseEx *db,
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    UInt32 fileIndex,         /* index of file */
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    UInt32 *blockIndex,       /* index of solid block */
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    Byte **outBuffer,         /* pointer to pointer to output buffer (allocated with allocMain) */
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    size_t *outBufferSize,    /* buffer size for output buffer */
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    size_t *offset,           /* offset of stream for required file in *outBuffer */
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    size_t *outSizeProcessed, /* size of file in *outBuffer */
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    ISzAlloc *allocMain,
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    ISzAlloc *allocTemp);
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#endif