1 #ifndef REFS_PACKED_BACKEND_H 2 #define REFS_PACKED_BACKEND_H 3 4 struct repository; 5 struct ref_transaction; 6 7 /* 8 * Support for storing references in a `packed-refs` file. 9 * 10 * Note that this backend doesn't check for D/F conflicts, because it 11 * doesn't care about them. But usually it should be wrapped in a 12 * `files_ref_store` that prevents D/F conflicts from being created, 13 * even among packed refs. 14 */ 15 16 struct ref_store *packed_ref_store_create(struct repository *repo, 17 const char *path, 18 unsigned int store_flags); 19 20 /* 21 * Lock the packed-refs file for writing. Flags is passed to 22 * hold_lock_file_for_update(). Return 0 on success. On errors, write 23 * an error message to `err` and return a nonzero value. 24 */ 25 int packed_refs_lock(struct ref_store *ref_store, int flags, struct strbuf *err); 26 27 void packed_refs_unlock(struct ref_store *ref_store); 28 int packed_refs_is_locked(struct ref_store *ref_store); 29 30 /* 31 * Return true if `transaction` really needs to be carried out against 32 * the specified packed_ref_store, or false if it can be skipped 33 * (i.e., because it is an obvious NOOP). `ref_store` must be locked 34 * before calling this function. 35 */ 36 int is_packed_transaction_needed(struct ref_store *ref_store, 37 struct ref_transaction *transaction); 38 39 #endif /* REFS_PACKED_BACKEND_H */ 40