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git/sha1-lookup.h
Christian Couder 96beef8c2e sha1-lookup: add new "sha1_pos" function to efficiently lookup sha1
This function has been copied from the "patch_pos" function in
"patch-ids.c" but an additional parameter has been added.

The new parameter is a function pointer, that is used to access the
sha1 of an element in the table.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-04 22:57:39 -07:00

16 lines
403 B
C

#ifndef SHA1_LOOKUP_H
#define SHA1_LOOKUP_H
typedef const unsigned char *sha1_access_fn(size_t index, void *table);
extern int sha1_pos(const unsigned char *sha1,
void *table,
size_t nr,
sha1_access_fn fn);
extern int sha1_entry_pos(const void *table,
size_t elem_size,
size_t key_offset,
unsigned lo, unsigned hi, unsigned nr,
const unsigned char *key);
#endif