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Add callback data to for_each_ref() family.

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This is a long overdue fix to the API for for_each_ref() family
of functions.  It allows the callers to specify a callback data
pointer, so that the caller does not have to use static
variables to communicate with the callback funciton.

The updated for_each_ref() family takes a function of type

	int (*fn)(const char *, const unsigned char *, void *)

and a void pointer as parameters, and calls the function with
the name of the ref and its SHA-1 with the caller-supplied void
pointer as parameters.

The commit updates two callers, builtin-name-rev.c and
builtin-pack-refs.c as an example.

Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Junio C Hamano
2006-09-20 21:47:42 -07:00
parent cc4c4f0ce2
commit cb5d709ff8
18 changed files with 79 additions and 71 deletions
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11
refs.h
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@ -14,11 +14,12 @@ struct ref_lock {
* Calls the specified function for each ref file until it returns nonzero,
* and returns the value
*/
extern int head_ref(int (*fn)(const char *path, const unsigned char *sha1));
extern int for_each_ref(int (*fn)(const char *path, const unsigned char *sha1));
extern int for_each_tag_ref(int (*fn)(const char *path, const unsigned char *sha1));
extern int for_each_branch_ref(int (*fn)(const char *path, const unsigned char *sha1));
extern int for_each_remote_ref(int (*fn)(const char *path, const unsigned char *sha1));
typedef int each_ref_fn(const char *refname, const unsigned char *sha1, void *cb_data);
extern int head_ref(each_ref_fn, void *);
extern int for_each_ref(each_ref_fn, void *);
extern int for_each_tag_ref(each_ref_fn, void *);
extern int for_each_branch_ref(each_ref_fn, void *);
extern int for_each_remote_ref(each_ref_fn, void *);
/** Reads the refs file specified into sha1 **/
extern int get_ref_sha1(const char *ref, unsigned char *sha1);