lib/tdb2/test/run-30-exhaust-before-expand.c

   1 #include "tdb2-source.h"
   2 #include "tap-interface.h"
   3 #include "logging.h"
   4
   5 static bool empty_freetable(struct tdb_context *tdb)
   6 {
   7         struct tdb_freetable ftab;
   8         unsigned int i;
   9
  10         /* Now, free table should be completely exhausted in zone 0 */
  11         if (tdb_read_convert(tdb, tdb->tdb2.ftable_off, &ftab, sizeof(ftab)) != 0)
  12                 abort();
  13
  14         for (i = 0; i < sizeof(ftab.buckets)/sizeof(ftab.buckets[0]); i++) {
  15                 if (ftab.buckets[i])
  16                         return false;
  17         }
  18         return true;
  19 }
  20
  21
  22 int main(int argc, char *argv[])
  23 {
  24         unsigned int i, j;
  25         struct tdb_context *tdb;
  26         int flags[] = { TDB_INTERNAL, TDB_DEFAULT, TDB_NOMMAP,
  27                         TDB_INTERNAL|TDB_CONVERT, TDB_CONVERT,
  28                         TDB_NOMMAP|TDB_CONVERT };
  29
  30         plan_tests(sizeof(flags) / sizeof(flags[0]) * 9 + 1);
  31
  32         for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
  33                 TDB_DATA k;
  34                 uint64_t size;
  35                 bool was_empty = false;
  36
  37                 k.dptr = (void *)&j;
  38                 k.dsize = sizeof(j);
  39
  40                 tdb = tdb_open("run-30-exhaust-before-expand.tdb", flags[i],
  41                                O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
  42                 ok1(tdb);
  43                 if (!tdb)
  44                         continue;
  45
  46                 ok1(empty_freetable(tdb));
  47                 /* Need some hash lock for expand. */
  48                 ok1(tdb_lock_hashes(tdb, 0, 1, F_WRLCK, TDB_LOCK_WAIT) == 0);
  49                 /* Create some free space. */
  50                 ok1(tdb_expand(tdb, 1) == 0);
  51                 ok1(tdb_unlock_hashes(tdb, 0, 1, F_WRLCK) == 0);
  52                 ok1(tdb_check(tdb, NULL, NULL) == 0);
  53                 ok1(!empty_freetable(tdb));
  54
  55                 size = tdb->file->map_size;
  56                 /* Insert minimal-length records until we expand. */
  57                 for (j = 0; tdb->file->map_size == size; j++) {
  58                         was_empty = empty_freetable(tdb);
  59                         if (tdb_store(tdb, k, k, TDB_INSERT) != 0)
  60                                 err(1, "Failed to store record %i", j);
  61                 }
  62
  63                 /* Would have been empty before expansion, but no longer. */
  64                 ok1(was_empty);
  65                 ok1(!empty_freetable(tdb));
  66                 tdb_close(tdb);
  67         }
  68
  69         ok1(tap_log_messages == 0);
  70         return exit_status();
  71 }