tags-cache: skip the filternode step if we are not going to use it When warming the hgtagsfnodescache, we don't need the actual result, so we can simply skip the part that "filter" fnode we read from the cache. So provide a quite visible speed up to the top level `hg debugupdatecache` function. ### data-env-vars.name = mozilla-try-2023-03-22-zstd-sparse-revlog # benchmark.name = hg.debug.debug-update-cache # bin-env-vars.hg.flavor = default # bin-env-vars.hg.py-re2-module = default # benchmark.variants.pre-state = warm before: 19.947581 after: 18.916804 (-5.17%, -1.03)

     1

#ifndef HG_BDIFF_H

     2

#define HG_BDIFF_H

     3

     4

#include "compat.h"

     5

     6

struct bdiff_line {

     7

	int hash, n, e;

     8

	ssize_t len;

     9

	const char *l;

    10

};

    11

    12

struct bdiff_hunk;

    13

struct bdiff_hunk {

    14

	int a1, a2, b1, b2;

    15

	struct bdiff_hunk *next;

    16

};

    17

    18

int bdiff_splitlines(const char *a, ssize_t len, struct bdiff_line **lr);

    19

int bdiff_diff(struct bdiff_line *a, int an, struct bdiff_line *b, int bn,

    20

               struct bdiff_hunk *base);

    21

void bdiff_freehunks(struct bdiff_hunk *l);

    22

    23

#endif