diff options
Diffstat (limited to 'lib/tdb2/test/run-20-growhash.c')
| -rw-r--r-- | lib/tdb2/test/run-20-growhash.c | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/lib/tdb2/test/run-20-growhash.c b/lib/tdb2/test/run-20-growhash.c deleted file mode 100644 index 2f634a27c0..0000000000 --- a/lib/tdb2/test/run-20-growhash.c +++ /dev/null @@ -1,137 +0,0 @@ -#include "tdb2-source.h" -#include "tap-interface.h" -#include "logging.h" - -static uint64_t myhash(const void *key, size_t len, uint64_t seed, void *priv) -{ - return *(const uint64_t *)key; -} - -static void add_bits(uint64_t *val, unsigned new, unsigned new_bits, - unsigned *done) -{ - *done += new_bits; - *val |= ((uint64_t)new << (64 - *done)); -} - -static uint64_t make_key(unsigned topgroup, unsigned topbucket, - unsigned subgroup1, unsigned subbucket1, - unsigned subgroup2, unsigned subbucket2) -{ - uint64_t key = 0; - unsigned done = 0; - - add_bits(&key, topgroup, TDB_TOPLEVEL_HASH_BITS - TDB_HASH_GROUP_BITS, - &done); - add_bits(&key, topbucket, TDB_HASH_GROUP_BITS, &done); - add_bits(&key, subgroup1, TDB_SUBLEVEL_HASH_BITS - TDB_HASH_GROUP_BITS, - &done); - add_bits(&key, subbucket1, TDB_HASH_GROUP_BITS, &done); - add_bits(&key, subgroup2, TDB_SUBLEVEL_HASH_BITS - TDB_HASH_GROUP_BITS, - &done); - add_bits(&key, subbucket2, TDB_HASH_GROUP_BITS, &done); - return key; -} - -int main(int argc, char *argv[]) -{ - unsigned int i, j; - struct tdb_context *tdb; - uint64_t kdata; - struct tdb_used_record rec; - struct tdb_data key = { (unsigned char *)&kdata, sizeof(kdata) }; - struct tdb_data dbuf = { (unsigned char *)&kdata, sizeof(kdata) }; - union tdb_attribute hattr = { .hash = { .base = { TDB_ATTRIBUTE_HASH }, - .fn = myhash } }; - int flags[] = { TDB_INTERNAL, TDB_DEFAULT, TDB_NOMMAP, - TDB_INTERNAL|TDB_CONVERT, TDB_CONVERT, - TDB_NOMMAP|TDB_CONVERT, - }; - - hattr.base.next = &tap_log_attr; - - plan_tests(sizeof(flags) / sizeof(flags[0]) - * (9 + (20 + 2 * ((1 << TDB_HASH_GROUP_BITS) - 2)) - * (1 << TDB_HASH_GROUP_BITS)) + 1); - for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) { - struct hash_info h; - - tdb = tdb_open("run-20-growhash.tdb", flags[i], - O_RDWR|O_CREAT|O_TRUNC, 0600, &hattr); - ok1(tdb); - if (!tdb) - continue; - - /* Fill a group. */ - for (j = 0; j < (1 << TDB_HASH_GROUP_BITS); j++) { - kdata = make_key(0, j, 0, 0, 0, 0); - ok1(tdb_store(tdb, key, dbuf, TDB_INSERT) == 0); - } - ok1(tdb_check(tdb, NULL, NULL) == 0); - - /* Check first still exists. */ - kdata = make_key(0, 0, 0, 0, 0, 0); - ok1(find_and_lock(tdb, key, F_RDLCK, &h, &rec, NULL) != 0); - /* Should have created correct hash. */ - ok1(h.h == tdb_hash(tdb, key.dptr, key.dsize)); - /* Should have located space in group 0, bucket 0. */ - ok1(h.group_start == offsetof(struct tdb_header, hashtable)); - ok1(h.home_bucket == 0); - ok1(h.found_bucket == 0); - ok1(h.hash_used == TDB_TOPLEVEL_HASH_BITS); - /* Entire group should be full! */ - for (j = 0; j < (1 << TDB_HASH_GROUP_BITS); j++) - ok1(h.group[j] != 0); - - ok1(tdb_unlock_hashes(tdb, h.hlock_start, h.hlock_range, - F_RDLCK) == 0); - - /* Now, add one more to each should expand (that) bucket. */ - for (j = 0; j < (1 << TDB_HASH_GROUP_BITS); j++) { - unsigned int k; - kdata = make_key(0, j, 0, 1, 0, 0); - ok1(tdb_store(tdb, key, dbuf, TDB_INSERT) == 0); - ok1(tdb_check(tdb, NULL, NULL) == 0); - - ok1(find_and_lock(tdb, key, F_RDLCK, &h, &rec, NULL)); - /* Should have created correct hash. */ - ok1(h.h == tdb_hash(tdb, key.dptr, key.dsize)); - /* Should have moved to subhash */ - ok1(h.group_start >= sizeof(struct tdb_header)); - ok1(h.home_bucket == 1); - ok1(h.found_bucket == 1); - ok1(h.hash_used == TDB_TOPLEVEL_HASH_BITS - + TDB_SUBLEVEL_HASH_BITS); - ok1(tdb_unlock_hashes(tdb, h.hlock_start, h.hlock_range, - F_RDLCK) == 0); - - /* Keep adding, make it expand again. */ - for (k = 2; k < (1 << TDB_HASH_GROUP_BITS); k++) { - kdata = make_key(0, j, 0, k, 0, 0); - ok1(tdb_store(tdb, key, dbuf, TDB_INSERT) == 0); - ok1(tdb_check(tdb, NULL, NULL) == 0); - } - - /* This should tip it over to sub-sub-hash. */ - kdata = make_key(0, j, 0, 0, 0, 1); - ok1(tdb_store(tdb, key, dbuf, TDB_INSERT) == 0); - ok1(tdb_check(tdb, NULL, NULL) == 0); - - ok1(find_and_lock(tdb, key, F_RDLCK, &h, &rec, NULL)); - /* Should have created correct hash. */ - ok1(h.h == tdb_hash(tdb, key.dptr, key.dsize)); - /* Should have moved to subhash */ - ok1(h.group_start >= sizeof(struct tdb_header)); - ok1(h.home_bucket == 1); - ok1(h.found_bucket == 1); - ok1(h.hash_used == TDB_TOPLEVEL_HASH_BITS - + TDB_SUBLEVEL_HASH_BITS + TDB_SUBLEVEL_HASH_BITS); - ok1(tdb_unlock_hashes(tdb, h.hlock_start, h.hlock_range, - F_RDLCK) == 0); - } - tdb_close(tdb); - } - - ok1(tap_log_messages == 0); - return exit_status(); -} |