diff options
Diffstat (limited to 'refs.h')
| -rw-r--r-- | refs.h | 24 |
1 files changed, 16 insertions, 8 deletions
@@ -1,6 +1,13 @@ #ifndef REFS_H #define REFS_H +struct ref_lock { + char *ref_file; + char *lock_file; + unsigned char old_sha1[20]; + int lock_fd; +}; + /* * Calls the specified function for each ref file until it returns nonzero, * and returns the value @@ -14,16 +21,17 @@ extern int for_each_remote_ref(int (*fn)(const char *path, const unsigned char * /** Reads the refs file specified into sha1 **/ extern int get_ref_sha1(const char *ref, unsigned char *sha1); -/** Locks ref and returns the fd to give to write_ref_sha1() if the ref - * has the given value currently; otherwise, returns -1. - **/ -extern int lock_ref_sha1(const char *ref, const unsigned char *old_sha1); +/** Locks a "refs/" ref returning the lock on success and NULL on failure. **/ +extern struct ref_lock* lock_ref_sha1(const char *ref, const unsigned char *old_sha1, int mustexist); + +/** Locks any ref (for 'HEAD' type refs). */ +extern struct ref_lock* lock_any_ref_for_update(const char *ref, const unsigned char *old_sha1, int mustexist); -/** Writes sha1 into the refs file specified, locked with the given fd. **/ -extern int write_ref_sha1(const char *ref, int fd, const unsigned char *sha1); +/** Release any lock taken but not written. **/ +extern void unlock_ref (struct ref_lock *lock); -/** Writes sha1 into the refs file specified. **/ -extern int write_ref_sha1_unlocked(const char *ref, const unsigned char *sha1); +/** Writes sha1 into the ref specified by the lock. **/ +extern int write_ref_sha1(struct ref_lock *lock, const unsigned char *sha1, const char *msg); /** Returns 0 if target has the right format for a ref. **/ extern int check_ref_format(const char *target); |