transport-helper: drop read/write errno checks
[git.git] / xdiff-interface.h
blob2d41fffd4c618b5d7b816146d9df684b195535e3
1 #ifndef XDIFF_INTERFACE_H
2 #define XDIFF_INTERFACE_H
4 #include "cache.h"
5 #include "xdiff/xdiff.h"
7 /*
8 * xdiff isn't equipped to handle content over a gigabyte;
9 * we make the cutoff 1GB - 1MB to give some breathing
10 * room for constant-sized additions (e.g., merge markers)
12 #define MAX_XDIFF_SIZE (1024UL * 1024 * 1023)
14 typedef void (*xdiff_emit_line_fn)(void *, char *, unsigned long);
15 typedef void (*xdiff_emit_hunk_fn)(void *data,
16 long old_begin, long old_nr,
17 long new_begin, long new_nr,
18 const char *func, long funclen);
20 int xdi_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp, xdemitconf_t const *xecfg, xdemitcb_t *ecb);
21 int xdi_diff_outf(mmfile_t *mf1, mmfile_t *mf2,
22 xdiff_emit_hunk_fn hunk_fn,
23 xdiff_emit_line_fn line_fn,
24 void *consume_callback_data,
25 xpparam_t const *xpp, xdemitconf_t const *xecfg);
26 int read_mmfile(mmfile_t *ptr, const char *filename);
27 void read_mmblob(mmfile_t *ptr, const struct object_id *oid);
28 int buffer_is_binary(const char *ptr, unsigned long size);
30 extern void xdiff_set_find_func(xdemitconf_t *xecfg, const char *line, int cflags);
31 extern void xdiff_clear_find_func(xdemitconf_t *xecfg);
32 extern int git_xmerge_config(const char *var, const char *value, void *cb);
33 extern int git_xmerge_style;
36 * Can be used as a no-op hunk_fn for xdi_diff_outf(), since a NULL
37 * one just sends the hunk line to the line_fn callback).
39 void discard_hunk_line(void *priv,
40 long ob, long on, long nb, long nn,
41 const char *func, long funclen);
44 * Compare the strings l1 with l2 which are of size s1 and s2 respectively.
45 * Returns 1 if the strings are deemed equal, 0 otherwise.
46 * The `flags` given as XDF_WHITESPACE_FLAGS determine how white spaces
47 * are treated for the comparision.
49 extern int xdiff_compare_lines(const char *l1, long s1,
50 const char *l2, long s2, long flags);
53 * Returns a hash of the string s of length len.
54 * The `flags` given as XDF_WHITESPACE_FLAGS determine how white spaces
55 * are treated for the hash.
57 extern unsigned long xdiff_hash_string(const char *s, size_t len, long flags);
59 #endif