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9d897b0951
This means changing headers, implementing a simple tap-like wrapper, and also splitting out the helpers into those which are linked with the api* tests (which can't use non-public tdb2 functions) and those linked with the run* tests (which can). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
138 lines
4.3 KiB
C
138 lines
4.3 KiB
C
#include "tdb2-source.h"
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#include "tap-interface.h"
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#include "logging.h"
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static uint64_t myhash(const void *key, size_t len, uint64_t seed, void *priv)
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{
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return *(const uint64_t *)key;
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}
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static void add_bits(uint64_t *val, unsigned new, unsigned new_bits,
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unsigned *done)
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{
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*done += new_bits;
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*val |= ((uint64_t)new << (64 - *done));
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}
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static uint64_t make_key(unsigned topgroup, unsigned topbucket,
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unsigned subgroup1, unsigned subbucket1,
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unsigned subgroup2, unsigned subbucket2)
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{
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uint64_t key = 0;
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unsigned done = 0;
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add_bits(&key, topgroup, TDB_TOPLEVEL_HASH_BITS - TDB_HASH_GROUP_BITS,
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&done);
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add_bits(&key, topbucket, TDB_HASH_GROUP_BITS, &done);
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add_bits(&key, subgroup1, TDB_SUBLEVEL_HASH_BITS - TDB_HASH_GROUP_BITS,
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&done);
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add_bits(&key, subbucket1, TDB_HASH_GROUP_BITS, &done);
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add_bits(&key, subgroup2, TDB_SUBLEVEL_HASH_BITS - TDB_HASH_GROUP_BITS,
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&done);
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add_bits(&key, subbucket2, TDB_HASH_GROUP_BITS, &done);
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return key;
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}
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int main(int argc, char *argv[])
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{
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unsigned int i, j;
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struct tdb_context *tdb;
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uint64_t kdata;
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struct tdb_used_record rec;
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struct tdb_data key = { (unsigned char *)&kdata, sizeof(kdata) };
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struct tdb_data dbuf = { (unsigned char *)&kdata, sizeof(kdata) };
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union tdb_attribute hattr = { .hash = { .base = { TDB_ATTRIBUTE_HASH },
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.fn = myhash } };
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int flags[] = { TDB_INTERNAL, TDB_DEFAULT, TDB_NOMMAP,
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TDB_INTERNAL|TDB_CONVERT, TDB_CONVERT,
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TDB_NOMMAP|TDB_CONVERT,
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};
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hattr.base.next = &tap_log_attr;
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plan_tests(sizeof(flags) / sizeof(flags[0])
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* (9 + (20 + 2 * ((1 << TDB_HASH_GROUP_BITS) - 2))
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* (1 << TDB_HASH_GROUP_BITS)) + 1);
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for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
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struct hash_info h;
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tdb = tdb_open("run-20-growhash.tdb", flags[i],
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O_RDWR|O_CREAT|O_TRUNC, 0600, &hattr);
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ok1(tdb);
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if (!tdb)
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continue;
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/* Fill a group. */
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for (j = 0; j < (1 << TDB_HASH_GROUP_BITS); j++) {
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kdata = make_key(0, j, 0, 0, 0, 0);
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ok1(tdb_store(tdb, key, dbuf, TDB_INSERT) == 0);
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}
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ok1(tdb_check(tdb, NULL, NULL) == 0);
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/* Check first still exists. */
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kdata = make_key(0, 0, 0, 0, 0, 0);
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ok1(find_and_lock(tdb, key, F_RDLCK, &h, &rec, NULL) != 0);
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/* Should have created correct hash. */
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ok1(h.h == tdb_hash(tdb, key.dptr, key.dsize));
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/* Should have located space in group 0, bucket 0. */
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ok1(h.group_start == offsetof(struct tdb_header, hashtable));
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ok1(h.home_bucket == 0);
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ok1(h.found_bucket == 0);
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ok1(h.hash_used == TDB_TOPLEVEL_HASH_BITS);
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/* Entire group should be full! */
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for (j = 0; j < (1 << TDB_HASH_GROUP_BITS); j++)
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ok1(h.group[j] != 0);
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ok1(tdb_unlock_hashes(tdb, h.hlock_start, h.hlock_range,
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F_RDLCK) == 0);
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/* Now, add one more to each should expand (that) bucket. */
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for (j = 0; j < (1 << TDB_HASH_GROUP_BITS); j++) {
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unsigned int k;
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kdata = make_key(0, j, 0, 1, 0, 0);
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ok1(tdb_store(tdb, key, dbuf, TDB_INSERT) == 0);
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ok1(tdb_check(tdb, NULL, NULL) == 0);
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ok1(find_and_lock(tdb, key, F_RDLCK, &h, &rec, NULL));
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/* Should have created correct hash. */
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ok1(h.h == tdb_hash(tdb, key.dptr, key.dsize));
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/* Should have moved to subhash */
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ok1(h.group_start >= sizeof(struct tdb_header));
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ok1(h.home_bucket == 1);
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ok1(h.found_bucket == 1);
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ok1(h.hash_used == TDB_TOPLEVEL_HASH_BITS
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+ TDB_SUBLEVEL_HASH_BITS);
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ok1(tdb_unlock_hashes(tdb, h.hlock_start, h.hlock_range,
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F_RDLCK) == 0);
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/* Keep adding, make it expand again. */
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for (k = 2; k < (1 << TDB_HASH_GROUP_BITS); k++) {
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kdata = make_key(0, j, 0, k, 0, 0);
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ok1(tdb_store(tdb, key, dbuf, TDB_INSERT) == 0);
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ok1(tdb_check(tdb, NULL, NULL) == 0);
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}
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/* This should tip it over to sub-sub-hash. */
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kdata = make_key(0, j, 0, 0, 0, 1);
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ok1(tdb_store(tdb, key, dbuf, TDB_INSERT) == 0);
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ok1(tdb_check(tdb, NULL, NULL) == 0);
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ok1(find_and_lock(tdb, key, F_RDLCK, &h, &rec, NULL));
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/* Should have created correct hash. */
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ok1(h.h == tdb_hash(tdb, key.dptr, key.dsize));
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/* Should have moved to subhash */
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ok1(h.group_start >= sizeof(struct tdb_header));
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ok1(h.home_bucket == 1);
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ok1(h.found_bucket == 1);
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ok1(h.hash_used == TDB_TOPLEVEL_HASH_BITS
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+ TDB_SUBLEVEL_HASH_BITS + TDB_SUBLEVEL_HASH_BITS);
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ok1(tdb_unlock_hashes(tdb, h.hlock_start, h.hlock_range,
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F_RDLCK) == 0);
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}
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tdb_close(tdb);
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}
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ok1(tap_log_messages == 0);
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return exit_status();
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}
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