mirror of
https://github.com/git/git.git
synced 2024-10-30 22:07:53 +01:00
0009d3501b
Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
#ifndef FETCH_NEGOTIATOR_H
|
|
#define FETCH_NEGOTIATOR_H
|
|
|
|
struct commit;
|
|
|
|
/*
|
|
* An object that supplies the information needed to negotiate the contents of
|
|
* the to-be-sent packfile during a fetch.
|
|
*
|
|
* To set up the negotiator, call fetch_negotiator_init(), then known_common()
|
|
* (0 or more times), then add_tip() (0 or more times).
|
|
*
|
|
* Then, when "have" lines are required, call next(). Call ack() to report what
|
|
* the server tells us.
|
|
*
|
|
* Once negotiation is done, call release(). The negotiator then cannot be used
|
|
* (unless reinitialized with fetch_negotiator_init()).
|
|
*/
|
|
struct fetch_negotiator {
|
|
/*
|
|
* Before negotiation starts, indicate that the server is known to have
|
|
* this commit.
|
|
*/
|
|
void (*known_common)(struct fetch_negotiator *, struct commit *);
|
|
|
|
/*
|
|
* Once this function is invoked, known_common() cannot be invoked any
|
|
* more.
|
|
*
|
|
* Indicate that this commit and all its ancestors are to be checked
|
|
* for commonality with the server.
|
|
*/
|
|
void (*add_tip)(struct fetch_negotiator *, struct commit *);
|
|
|
|
/*
|
|
* Once this function is invoked, known_common() and add_tip() cannot
|
|
* be invoked any more.
|
|
*
|
|
* Return the next commit that the client should send as a "have" line.
|
|
*/
|
|
const struct object_id *(*next)(struct fetch_negotiator *);
|
|
|
|
/*
|
|
* Inform the negotiator that the server has the given commit. This
|
|
* method must only be called on commits returned by next().
|
|
*/
|
|
int (*ack)(struct fetch_negotiator *, struct commit *);
|
|
|
|
void (*release)(struct fetch_negotiator *);
|
|
|
|
/* internal use */
|
|
void *data;
|
|
};
|
|
|
|
void fetch_negotiator_init(struct fetch_negotiator *negotiator,
|
|
const char *algorithm);
|
|
|
|
#endif
|