| #include "cache.h" |
| #include "oid-array.h" |
| #include "sha1-lookup.h" |
| |
| void oid_array_append(struct oid_array *array, const struct object_id *oid) |
| { |
| ALLOC_GROW(array->oid, array->nr + 1, array->alloc); |
| oidcpy(&array->oid[array->nr++], oid); |
| array->sorted = 0; |
| } |
| |
| static int void_hashcmp(const void *a, const void *b) |
| { |
| return oidcmp(a, b); |
| } |
| |
| static void oid_array_sort(struct oid_array *array) |
| { |
| QSORT(array->oid, array->nr, void_hashcmp); |
| array->sorted = 1; |
| } |
| |
| static const unsigned char *sha1_access(size_t index, void *table) |
| { |
| struct object_id *array = table; |
| return array[index].hash; |
| } |
| |
| int oid_array_lookup(struct oid_array *array, const struct object_id *oid) |
| { |
| if (!array->sorted) |
| oid_array_sort(array); |
| return sha1_pos(oid->hash, array->oid, array->nr, sha1_access); |
| } |
| |
| void oid_array_clear(struct oid_array *array) |
| { |
| FREE_AND_NULL(array->oid); |
| array->nr = 0; |
| array->alloc = 0; |
| array->sorted = 0; |
| } |
| |
| |
| int oid_array_for_each(struct oid_array *array, |
| for_each_oid_fn fn, |
| void *data) |
| { |
| size_t i; |
| |
| /* No oid_array_sort() here! See oid-array.h */ |
| |
| for (i = 0; i < array->nr; i++) { |
| int ret = fn(array->oid + i, data); |
| if (ret) |
| return ret; |
| } |
| return 0; |
| } |
| |
| int oid_array_for_each_unique(struct oid_array *array, |
| for_each_oid_fn fn, |
| void *data) |
| { |
| size_t i; |
| |
| if (!array->sorted) |
| oid_array_sort(array); |
| |
| for (i = 0; i < array->nr; i++) { |
| int ret; |
| if (i > 0 && oideq(array->oid + i, array->oid + i - 1)) |
| continue; |
| ret = fn(array->oid + i, data); |
| if (ret) |
| return ret; |
| } |
| return 0; |
| } |
| |
| void oid_array_filter(struct oid_array *array, |
| for_each_oid_fn want, |
| void *cb_data) |
| { |
| size_t nr = array->nr, src, dst; |
| struct object_id *oids = array->oid; |
| |
| for (src = dst = 0; src < nr; src++) { |
| if (want(&oids[src], cb_data)) { |
| if (src != dst) |
| oidcpy(&oids[dst], &oids[src]); |
| dst++; |
| } |
| } |
| array->nr = dst; |
| } |