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86abba8015
For histogram diff, we can afford a smaller sample size and thus a poorer estimate of the number of lines, as the hash table (rhash) won't be filled up/grown. This is safe as the final count of lines (xdf.nrecs) will be updated correctly anyway by xdl_prepare_ctx(). This gives us a small boost in performance. Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
49 lines
1.9 KiB
C
49 lines
1.9 KiB
C
/*
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* LibXDiff by Davide Libenzi ( File Differential Library )
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* Copyright (C) 2003 Davide Libenzi
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Davide Libenzi <davidel@xmailserver.org>
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*
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*/
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#if !defined(XUTILS_H)
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#define XUTILS_H
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long xdl_bogosqrt(long n);
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int xdl_emit_diffrec(char const *rec, long size, char const *pre, long psize,
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xdemitcb_t *ecb);
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int xdl_cha_init(chastore_t *cha, long isize, long icount);
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void xdl_cha_free(chastore_t *cha);
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void *xdl_cha_alloc(chastore_t *cha);
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void *xdl_cha_first(chastore_t *cha);
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void *xdl_cha_next(chastore_t *cha);
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long xdl_guess_lines(mmfile_t *mf, long sample);
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int xdl_recmatch(const char *l1, long s1, const char *l2, long s2, long flags);
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unsigned long xdl_hash_record(char const **data, char const *top, long flags);
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unsigned int xdl_hashbits(unsigned int size);
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int xdl_num_out(char *out, long val);
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long xdl_atol(char const *str, char const **next);
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int xdl_emit_hunk_hdr(long s1, long c1, long s2, long c2,
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const char *func, long funclen, xdemitcb_t *ecb);
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int xdl_fall_back_diff(xdfenv_t *diff_env, xpparam_t const *xpp,
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int line1, int count1, int line2, int count2);
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#endif /* #if !defined(XUTILS_H) */
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