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git/oid-array.c

93 lines
1.8 KiB

#include "cache.h"
#include "oid-array.h"
#include "hash-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);
}
void oid_array_sort(struct oid_array *array)
{
if (array->sorted)
return;
QSORT(array->oid, array->nr, void_hashcmp);
array->sorted = 1;
}
static const struct object_id *oid_access(size_t index, const void *table)
{
const struct object_id *array = table;
return &array[index];
}
int oid_array_lookup(struct oid_array *array, const struct object_id *oid)
{
oid_array_sort(array);
return oid_pos(oid, array->oid, array->nr, oid_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;
oid_array_sort(array);
for (i = 0; i < array->nr; i = oid_array_next_unique(array, i)) {
int 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;
}