99b1291d17
This can be used to amortize the synchronization costs of edata_cache accesses.
92 lines
2.4 KiB
C
92 lines
2.4 KiB
C
#include "test/jemalloc_test.h"
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#include "jemalloc/internal/edata_cache.h"
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static void
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test_edata_cache_init(edata_cache_t *edata_cache) {
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base_t *base = base_new(TSDN_NULL, /* ind */ 1,
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&ehooks_default_extent_hooks);
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assert_ptr_not_null(base, "");
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bool err = edata_cache_init(edata_cache, base);
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assert_false(err, "");
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}
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static void
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test_edata_cache_destroy(edata_cache_t *edata_cache) {
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base_delete(TSDN_NULL, edata_cache->base);
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}
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TEST_BEGIN(test_edata_cache) {
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edata_cache_t ec;
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test_edata_cache_init(&ec);
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/* Get one */
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edata_t *ed1 = edata_cache_get(TSDN_NULL, &ec);
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assert_ptr_not_null(ed1, "");
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/* Cache should be empty */
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assert_zu_eq(atomic_load_zu(&ec.count, ATOMIC_RELAXED), 0, "");
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/* Get another */
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edata_t *ed2 = edata_cache_get(TSDN_NULL, &ec);
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assert_ptr_not_null(ed2, "");
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/* Still empty */
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assert_zu_eq(atomic_load_zu(&ec.count, ATOMIC_RELAXED), 0, "");
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/* Put one back, and the cache should now have one item */
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edata_cache_put(TSDN_NULL, &ec, ed1);
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assert_zu_eq(atomic_load_zu(&ec.count, ATOMIC_RELAXED), 1, "");
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/* Reallocating should reuse the item, and leave an empty cache. */
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edata_t *ed1_again = edata_cache_get(TSDN_NULL, &ec);
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assert_ptr_eq(ed1, ed1_again, "");
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assert_zu_eq(atomic_load_zu(&ec.count, ATOMIC_RELAXED), 0, "");
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test_edata_cache_destroy(&ec);
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}
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TEST_END
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TEST_BEGIN(test_edata_cache_small) {
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edata_cache_t ec;
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edata_cache_small_t ecs;
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test_edata_cache_init(&ec);
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edata_cache_small_init(&ecs, &ec);
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bool err = edata_cache_small_prepare(TSDN_NULL, &ecs, 2);
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assert_false(err, "");
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assert_zu_eq(ecs.count, 2, "");
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assert_zu_eq(atomic_load_zu(&ec.count, ATOMIC_RELAXED), 0, "");
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edata_t *ed1 = edata_cache_small_get(&ecs);
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assert_zu_eq(ecs.count, 1, "");
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assert_zu_eq(atomic_load_zu(&ec.count, ATOMIC_RELAXED), 0, "");
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edata_t *ed2 = edata_cache_small_get(&ecs);
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assert_zu_eq(ecs.count, 0, "");
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assert_zu_eq(atomic_load_zu(&ec.count, ATOMIC_RELAXED), 0, "");
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edata_cache_small_put(&ecs, ed1);
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assert_zu_eq(ecs.count, 1, "");
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assert_zu_eq(atomic_load_zu(&ec.count, ATOMIC_RELAXED), 0, "");
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edata_cache_small_put(&ecs, ed2);
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assert_zu_eq(ecs.count, 2, "");
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assert_zu_eq(atomic_load_zu(&ec.count, ATOMIC_RELAXED), 0, "");
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edata_cache_small_finish(TSDN_NULL, &ecs, 1);
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assert_zu_eq(ecs.count, 1, "");
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assert_zu_eq(atomic_load_zu(&ec.count, ATOMIC_RELAXED), 1, "");
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test_edata_cache_destroy(&ec);
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}
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TEST_END
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int
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main(void) {
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return test(
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test_edata_cache,
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test_edata_cache_small);
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}
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