void
tdb_htrie_test_fixsz(const char *fname)
{
int r __attribute__((unused));
int t, fd;
char *addr;
TdbHdr *dbh;
struct timeval tv0, tv1;
pthread_t thr[THR_N];
printf("\n----------- Fixed size records test -------------\n");
addr = tdb_htrie_open(TDB_MAP_ADDR1, fname, TDB_FSF_SZ, &fd);
dbh = tdb_htrie_init(addr, TDB_FSF_SZ, sizeof(ints[0]));
if (!dbh)
TDB_ERR("cannot initialize htrie for ints");
r = gettimeofday(&tv0, NULL);
assert(!r);
for (t = 0; t < THR_N; ++t)
if (spawn_thread(thr + t, fixsz_thr_f, dbh))
perror("cannot spawn fixsz thread");
for (t = 0; t < THR_N; ++t)
pthread_join(thr[t], NULL);
r = gettimeofday(&tv1, NULL);
assert(!r);
printf("tdb htrie ints test: time=%lums\n",
tv_to_ms(&tv1) - tv_to_ms(&tv0));
tdb_htrie_exit(dbh);
tdb_htrie_pure_close(addr, TDB_FSF_SZ, fd);
printf("\n **** Fixed size records test reopen ****\n");
addr = tdb_htrie_open(TDB_MAP_ADDR2, fname, TDB_FSF_SZ, &fd);
dbh = tdb_htrie_init(addr, TDB_FSF_SZ, sizeof(ints[0]));
if (!dbh)
TDB_ERR("cannot initialize htrie for ints");
lookup_fixsz_records(dbh);
tdb_htrie_exit(dbh);
tdb_htrie_pure_close(addr, TDB_FSF_SZ, fd);
}
/**
* Work queue wrapper for tdb_file_open() (real file open).
*/
static void
tdb_open_db(struct work_struct *work)
{
TdbWork *tw = (TdbWork *)work;
TDB *db = tw->db;
if (tdb_file_open(db, tw->fsize))
TDB_ERR("Cannot open db\n");
db->hdr = tdb_htrie_init(db->hdr, db->filp->f_inode->i_size, tw->rsize);
if (!db->hdr)
TDB_ERR("Cannot initialize db header\n");
kmem_cache_free(tw_cache, tw);
}
/**
* Open database file and @return its descriptor.
* If the database is already opened, then returns the handler.
*
* The function must not be called from softirq!
*/
TDB *
tdb_open(const char *path, size_t fsize, unsigned int rec_size, int node)
{
TDB *db;
if ((fsize & ~TDB_EXT_MASK) || fsize < TDB_EXT_SZ) {
TDB_ERR("Bad table size: %lu\n", fsize);
return NULL;
}
db = tdb_get_db(path, node);
if (!db)
return NULL;
db->node = node;
if (tdb_file_open(db, fsize)) {
TDB_ERR("Cannot open db\n");
goto err;
}
db->hdr = tdb_htrie_init(db->hdr, db->filp->f_inode->i_size, rec_size);
if (!db->hdr) {
TDB_ERR("Cannot initialize db header\n");
goto err_init;
}
tdb_tbl_enumerate(db);
TDB_LOG("Opened table %s: size=%lu rec_size=%u base=%p\n",
path, fsize, rec_size, db->hdr);
return db;
err_init:
tdb_file_close(db);
err:
tdb_put(db);
return NULL;
}
