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#include <ccan/tdb2/tdb.c>
#include <ccan/tdb2/open.c>
#include <ccan/tdb2/free.c>
#include <ccan/tdb2/lock.c>
#include <ccan/tdb2/io.c>
#include <ccan/tdb2/hash.c>
#include <ccan/tdb2/transaction.c>
#include <ccan/tdb2/check.c>
#include <ccan/tap/tap.h>
#include "logging.h"
/* We rig the hash so adjacent-numbered records always clash. */
static uint64_t clash(const void *key, size_t len, uint64_t seed, void *priv)
{
return ((uint64_t)*(const unsigned int *)key)
<< (64 - TDB_TOPLEVEL_HASH_BITS - 1);
}
int main(int argc, char *argv[])
{
unsigned int i, j;
struct tdb_context *tdb;
unsigned int v;
struct tdb_used_record rec;
struct tdb_data key = { (unsigned char *)&v, sizeof(v) };
struct tdb_data dbuf = { (unsigned char *)&v, sizeof(v) };
union tdb_attribute hattr = { .hash = { .base = { TDB_ATTRIBUTE_HASH },
.fn = clash } };
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])
* (91 + (2 * ((1 << TDB_HASH_GROUP_BITS) - 1))) + 1);
for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
struct hash_info h;
tdb_off_t new_off, off, subhash;
tdb = tdb_open("run-04-basichash.tdb", flags[i],
O_RDWR|O_CREAT|O_TRUNC, 0600, &hattr);
ok1(tdb);
if (!tdb)
continue;
v = 0;
/* Should not find it. */
ok1(find_and_lock(tdb, key, F_WRLCK, &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);
/* Should have lock on bucket 0 */
ok1(h.hlock_start == 0);
ok1(h.hlock_range ==
1ULL << (64-(TDB_TOPLEVEL_HASH_BITS-TDB_HASH_GROUP_BITS)));
ok1((tdb->flags & TDB_NOLOCK) || tdb->file->num_lockrecs == 1);
ok1((tdb->flags & TDB_NOLOCK)
|| tdb->file->lockrecs[0].off == TDB_HASH_LOCK_START);
/* FIXME: Check lock length */
/* Allocate a new record. */
new_off = alloc(tdb, key.dsize, dbuf.dsize, h.h,
TDB_USED_MAGIC, false);
ok1(!TDB_OFF_IS_ERR(new_off));
/* We should be able to add it now. */
ok1(add_to_hash(tdb, &h, new_off) == 0);
/* Make sure we fill it in for later finding. */
off = new_off + sizeof(struct tdb_used_record);
ok1(!tdb->methods->twrite(tdb, off, key.dptr, key.dsize));
off += key.dsize;
ok1(!tdb->methods->twrite(tdb, off, dbuf.dptr, dbuf.dsize));
/* We should be able to unlock that OK. */
ok1(tdb_unlock_hashes(tdb, h.hlock_start, h.hlock_range,
F_WRLCK) == 0);
/* Database should be consistent. */
ok1(tdb_check(tdb, NULL, NULL) == 0);
/* Now, this should give a successful lookup. */
ok1(find_and_lock(tdb, key, F_WRLCK, &h, &rec, NULL)
== new_off);
/* 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);
/* Should have lock on bucket 0 */
ok1(h.hlock_start == 0);
ok1(h.hlock_range ==
1ULL << (64-(TDB_TOPLEVEL_HASH_BITS-TDB_HASH_GROUP_BITS)));
ok1((tdb->flags & TDB_NOLOCK) || tdb->file->num_lockrecs == 1);
ok1((tdb->flags & TDB_NOLOCK)
|| tdb->file->lockrecs[0].off == TDB_HASH_LOCK_START);
/* FIXME: Check lock length */
ok1(tdb_unlock_hashes(tdb, h.hlock_start, h.hlock_range,
F_WRLCK) == 0);
/* Database should be consistent. */
ok1(tdb_check(tdb, NULL, NULL) == 0);
/* Test expansion. */
v = 1;
ok1(find_and_lock(tdb, key, F_WRLCK, &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 1. */
ok1(h.group_start == offsetof(struct tdb_header, hashtable));
ok1(h.home_bucket == 0);
ok1(h.found_bucket == 1);
ok1(h.hash_used == TDB_TOPLEVEL_HASH_BITS);
/* Should have lock on bucket 0 */
ok1(h.hlock_start == 0);
ok1(h.hlock_range ==
1ULL << (64-(TDB_TOPLEVEL_HASH_BITS-TDB_HASH_GROUP_BITS)));
ok1((tdb->flags & TDB_NOLOCK) || tdb->file->num_lockrecs == 1);
ok1((tdb->flags & TDB_NOLOCK)
|| tdb->file->lockrecs[0].off == TDB_HASH_LOCK_START);
/* FIXME: Check lock length */
/* Make it expand 0'th bucket. */
ok1(expand_group(tdb, &h) == 0);
/* First one should be subhash, next should be empty. */
ok1(is_subhash(h.group[0]));
subhash = (h.group[0] & TDB_OFF_MASK);
for (j = 1; j < (1 << TDB_HASH_GROUP_BITS); j++)
ok1(h.group[j] == 0);
ok1(tdb_write_convert(tdb, h.group_start,
h.group, sizeof(h.group)) == 0);
ok1(tdb_unlock_hashes(tdb, h.hlock_start, h.hlock_range,
F_WRLCK) == 0);
/* Should be happy with expansion. */
ok1(tdb_check(tdb, NULL, NULL) == 0);
/* Should be able to find it. */
v = 0;
ok1(find_and_lock(tdb, key, F_WRLCK, &h, &rec, NULL)
== new_off);
/* Should have created correct hash. */
ok1(h.h == tdb_hash(tdb, key.dptr, key.dsize));
/* Should have located space in expanded group 0, bucket 0. */
ok1(h.group_start == subhash + sizeof(struct tdb_used_record));
ok1(h.home_bucket == 0);
ok1(h.found_bucket == 0);
ok1(h.hash_used == TDB_TOPLEVEL_HASH_BITS
+ TDB_SUBLEVEL_HASH_BITS);
/* Should have lock on bucket 0 */
ok1(h.hlock_start == 0);
ok1(h.hlock_range ==
1ULL << (64-(TDB_TOPLEVEL_HASH_BITS-TDB_HASH_GROUP_BITS)));
ok1((tdb->flags & TDB_NOLOCK) || tdb->file->num_lockrecs == 1);
ok1((tdb->flags & TDB_NOLOCK)
|| tdb->file->lockrecs[0].off == TDB_HASH_LOCK_START);
/* FIXME: Check lock length */
/* Simple delete should work. */
ok1(delete_from_hash(tdb, &h) == 0);
ok1(add_free_record(tdb, new_off,
sizeof(struct tdb_used_record)
+ rec_key_length(&rec)
+ rec_data_length(&rec)
+ rec_extra_padding(&rec),
TDB_LOCK_NOWAIT, false) == 0);
ok1(tdb_unlock_hashes(tdb, h.hlock_start, h.hlock_range,
F_WRLCK) == 0);
ok1(tdb_check(tdb, NULL, NULL) == 0);
/* Test second-level expansion: should expand 0th bucket. */
v = 0;
ok1(find_and_lock(tdb, key, F_WRLCK, &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 == subhash + sizeof(struct tdb_used_record));
ok1(h.home_bucket == 0);
ok1(h.found_bucket == 0);
ok1(h.hash_used == TDB_TOPLEVEL_HASH_BITS+TDB_SUBLEVEL_HASH_BITS);
/* Should have lock on bucket 0 */
ok1(h.hlock_start == 0);
ok1(h.hlock_range ==
1ULL << (64-(TDB_TOPLEVEL_HASH_BITS-TDB_HASH_GROUP_BITS)));
ok1((tdb->flags & TDB_NOLOCK) || tdb->file->num_lockrecs == 1);
ok1((tdb->flags & TDB_NOLOCK)
|| tdb->file->lockrecs[0].off == TDB_HASH_LOCK_START);
/* FIXME: Check lock length */
ok1(expand_group(tdb, &h) == 0);
/* First one should be subhash, next should be empty. */
ok1(is_subhash(h.group[0]));
subhash = (h.group[0] & TDB_OFF_MASK);
for (j = 1; j < (1 << TDB_HASH_GROUP_BITS); j++)
ok1(h.group[j] == 0);
ok1(tdb_write_convert(tdb, h.group_start,
h.group, sizeof(h.group)) == 0);
ok1(tdb_unlock_hashes(tdb, h.hlock_start, h.hlock_range,
F_WRLCK) == 0);
/* Should be happy with expansion. */
ok1(tdb_check(tdb, NULL, NULL) == 0);
ok1(find_and_lock(tdb, key, F_WRLCK, &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 == subhash + sizeof(struct tdb_used_record));
ok1(h.home_bucket == 0);
ok1(h.found_bucket == 0);
ok1(h.hash_used == TDB_TOPLEVEL_HASH_BITS
+ TDB_SUBLEVEL_HASH_BITS * 2);
/* We should be able to add it now. */
/* Allocate a new record. */
new_off = alloc(tdb, key.dsize, dbuf.dsize, h.h,
TDB_USED_MAGIC, false);
ok1(!TDB_OFF_IS_ERR(new_off));
ok1(add_to_hash(tdb, &h, new_off) == 0);
/* Make sure we fill it in for later finding. */
off = new_off + sizeof(struct tdb_used_record);
ok1(!tdb->methods->twrite(tdb, off, key.dptr, key.dsize));
off += key.dsize;
ok1(!tdb->methods->twrite(tdb, off, dbuf.dptr, dbuf.dsize));
/* We should be able to unlock that OK. */
ok1(tdb_unlock_hashes(tdb, h.hlock_start, h.hlock_range,
F_WRLCK) == 0);
/* Database should be consistent. */
ok1(tdb_check(tdb, NULL, NULL) == 0);
/* Should be able to find it. */
v = 0;
ok1(find_and_lock(tdb, key, F_WRLCK, &h, &rec, NULL)
== new_off);
/* Should have created correct hash. */
ok1(h.h == tdb_hash(tdb, key.dptr, key.dsize));
/* Should have located space in expanded group 0, bucket 0. */
ok1(h.group_start == subhash + sizeof(struct tdb_used_record));
ok1(h.home_bucket == 0);
ok1(h.found_bucket == 0);
ok1(h.hash_used == TDB_TOPLEVEL_HASH_BITS
+ TDB_SUBLEVEL_HASH_BITS * 2);
tdb_close(tdb);
}
ok1(tap_log_messages == 0);
return exit_status();
}
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