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The "reftable" backend for the refs API, without integrating into the refs subsystem, has been added. * hn/reftable: Add "test-tool dump-reftable" command. reftable: add dump utility reftable: implement stack, a mutable database of reftable files. reftable: implement refname validation reftable: add merged table view reftable: add a heap-based priority queue for reftable records reftable: reftable file level tests reftable: read reftable files reftable: generic interface to tables reftable: write reftable files reftable: a generic binary tree implementation reftable: reading/writing blocks Provide zlib's uncompress2 from compat/zlib-compat.c reftable: (de)serialization for the polymorphic record type. reftable: add blocksource, an abstraction for random access reads reftable: utility functions reftable: add error related functionality reftable: add LICENSE hash.h: provide constants for the hash IDs
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| /zlib-uncompress2.c whitespace=-indent-with-non-tab,-trailing-space |
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| /* taken from zlib's uncompr.c | ||
| commit cacf7f1d4e3d44d871b605da3b647f07d718623f | ||
| Author: Mark Adler <madler@alumni.caltech.edu> | ||
| Date: Sun Jan 15 09:18:46 2017 -0800 | ||
| zlib 1.2.11 | ||
| */ | ||
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| #include "../reftable/system.h" | ||
| #define z_const | ||
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| /* | ||
| * Copyright (C) 1995-2003, 2010, 2014, 2016 Jean-loup Gailly, Mark Adler | ||
| * For conditions of distribution and use, see copyright notice in zlib.h | ||
| */ | ||
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| #include <zlib.h> | ||
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| /* clang-format off */ | ||
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| /* =========================================================================== | ||
| Decompresses the source buffer into the destination buffer. *sourceLen is | ||
| the byte length of the source buffer. Upon entry, *destLen is the total size | ||
| of the destination buffer, which must be large enough to hold the entire | ||
| uncompressed data. (The size of the uncompressed data must have been saved | ||
| previously by the compressor and transmitted to the decompressor by some | ||
| mechanism outside the scope of this compression library.) Upon exit, | ||
| *destLen is the size of the decompressed data and *sourceLen is the number | ||
| of source bytes consumed. Upon return, source + *sourceLen points to the | ||
| first unused input byte. | ||
| uncompress returns Z_OK if success, Z_MEM_ERROR if there was not enough | ||
| memory, Z_BUF_ERROR if there was not enough room in the output buffer, or | ||
| Z_DATA_ERROR if the input data was corrupted, including if the input data is | ||
| an incomplete zlib stream. | ||
| */ | ||
| int ZEXPORT uncompress2 ( | ||
| Bytef *dest, | ||
| uLongf *destLen, | ||
| const Bytef *source, | ||
| uLong *sourceLen) { | ||
| z_stream stream; | ||
| int err; | ||
| const uInt max = (uInt)-1; | ||
| uLong len, left; | ||
| Byte buf[1]; /* for detection of incomplete stream when *destLen == 0 */ | ||
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| len = *sourceLen; | ||
| if (*destLen) { | ||
| left = *destLen; | ||
| *destLen = 0; | ||
| } | ||
| else { | ||
| left = 1; | ||
| dest = buf; | ||
| } | ||
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| stream.next_in = (z_const Bytef *)source; | ||
| stream.avail_in = 0; | ||
| stream.zalloc = (alloc_func)0; | ||
| stream.zfree = (free_func)0; | ||
| stream.opaque = (voidpf)0; | ||
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| err = inflateInit(&stream); | ||
| if (err != Z_OK) return err; | ||
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| stream.next_out = dest; | ||
| stream.avail_out = 0; | ||
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| do { | ||
| if (stream.avail_out == 0) { | ||
| stream.avail_out = left > (uLong)max ? max : (uInt)left; | ||
| left -= stream.avail_out; | ||
| } | ||
| if (stream.avail_in == 0) { | ||
| stream.avail_in = len > (uLong)max ? max : (uInt)len; | ||
| len -= stream.avail_in; | ||
| } | ||
| err = inflate(&stream, Z_NO_FLUSH); | ||
| } while (err == Z_OK); | ||
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| *sourceLen -= len + stream.avail_in; | ||
| if (dest != buf) | ||
| *destLen = stream.total_out; | ||
| else if (stream.total_out && err == Z_BUF_ERROR) | ||
| left = 1; | ||
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| inflateEnd(&stream); | ||
| return err == Z_STREAM_END ? Z_OK : | ||
| err == Z_NEED_DICT ? Z_DATA_ERROR : | ||
| err == Z_BUF_ERROR && left + stream.avail_out ? Z_DATA_ERROR : | ||
| err; | ||
| } |
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