1 #ifndef REPLACE_OBJECT_H
2 #define REPLACE_OBJECT_H
5 #include "repository.h"
6 #include "object-store.h"
8 struct replace_object {
9 struct oidmap_entry original;
10 struct object_id replacement;
13 void prepare_replace_object(struct repository *r);
16 * This internal function is only declared here for the benefit of
17 * lookup_replace_object(). Please do not call it directly.
19 const struct object_id *do_lookup_replace_object(struct repository *r,
20 const struct object_id *oid);
23 * If object sha1 should be replaced, return the replacement object's
24 * name (replaced recursively, if necessary). The return value is
25 * either sha1 or a pointer to a permanently-allocated value. When
26 * object replacement is suppressed, always return sha1.
28 * Note: some thread debuggers might point a data race on the
29 * replace_map_initialized reading in this function. However, we know there's no
30 * problem in the value being updated by one thread right after another one read
31 * it here (and it should be written to only once, anyway).
33 static inline const struct object_id *lookup_replace_object(struct repository *r,
34 const struct object_id *oid)
36 if (!read_replace_refs ||
37 (r->objects->replace_map_initialized &&
38 r->objects->replace_map->map.tablesize == 0))
40 return do_lookup_replace_object(r, oid);
43 #endif /* REPLACE_OBJECT_H */