| 1 | #include "git-compat-util.h" |
| 2 | #include "packfile.h" |
| 3 | #include "packfile-list.h" |
| 4 | |
| 5 | void packfile_list_clear(struct packfile_list *list) |
| 6 | { |
| 7 | struct packfile_list_entry *e, *next; |
| 8 | |
| 9 | for (e = list->head; e; e = next) { |
| 10 | next = e->next; |
| 11 | free(e); |
| 12 | } |
| 13 | |
| 14 | list->head = list->tail = NULL; |
| 15 | } |
| 16 | |
| 17 | static struct packfile_list_entry *packfile_list_remove_internal(struct packfile_list *list, |
| 18 | struct packed_git *pack) |
| 19 | { |
| 20 | struct packfile_list_entry *e, *prev; |
| 21 | |
| 22 | for (e = list->head, prev = NULL; e; prev = e, e = e->next) { |
| 23 | if (e->pack != pack) |
| 24 | continue; |
| 25 | |
| 26 | if (prev) |
| 27 | prev->next = e->next; |
| 28 | if (list->head == e) |
| 29 | list->head = e->next; |
| 30 | if (list->tail == e) |
| 31 | list->tail = prev; |
| 32 | |
| 33 | return e; |
| 34 | } |
| 35 | |
| 36 | return NULL; |
| 37 | } |
| 38 | |
| 39 | void packfile_list_remove(struct packfile_list *list, struct packed_git *pack) |
| 40 | { |
| 41 | free(packfile_list_remove_internal(list, pack)); |
| 42 | } |
| 43 | |
| 44 | void packfile_list_prepend(struct packfile_list *list, struct packed_git *pack) |
| 45 | { |
| 46 | struct packfile_list_entry *entry; |
| 47 | |
| 48 | entry = packfile_list_remove_internal(list, pack); |
| 49 | if (!entry) { |
| 50 | entry = xmalloc(sizeof(*entry)); |
| 51 | entry->pack = pack; |
| 52 | } |
| 53 | entry->next = list->head; |
| 54 | |
| 55 | list->head = entry; |
| 56 | if (!list->tail) |
| 57 | list->tail = entry; |
| 58 | } |
| 59 | |
| 60 | void packfile_list_append(struct packfile_list *list, struct packed_git *pack) |
| 61 | { |
| 62 | struct packfile_list_entry *entry; |
| 63 | |
| 64 | entry = packfile_list_remove_internal(list, pack); |
| 65 | if (!entry) { |
| 66 | entry = xmalloc(sizeof(*entry)); |
| 67 | entry->pack = pack; |
| 68 | } |
| 69 | entry->next = NULL; |
| 70 | |
| 71 | if (list->tail) { |
| 72 | list->tail->next = entry; |
| 73 | list->tail = entry; |
| 74 | } else { |
| 75 | list->head = list->tail = entry; |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | struct packed_git *packfile_list_find_oid(struct packfile_list_entry *packs, |
| 80 | const struct object_id *oid) |
| 81 | { |
| 82 | for (; packs; packs = packs->next) |
| 83 | if (find_pack_entry_one(oid, packs->pack)) |
| 84 | return packs->pack; |
| 85 | return NULL; |
| 86 | } |