git.ozlabs.org Git - ccan/blob - ccan/tdb2/test/run-open-multiple-times.c

   1 #include "tdb2-source.h"
   2 #include <ccan/tap/tap.h>
   3 #include "logging.h"
   4
   5 int main(int argc, char *argv[])
   6 {
   7         unsigned int i;
   8         struct tdb_context *tdb, *tdb2;
   9         struct tdb_data key = { (unsigned char *)&i, sizeof(i) };
  10         struct tdb_data data = { (unsigned char *)&i, sizeof(i) };
  11         struct tdb_data d = { NULL, 0 }; /* Bogus GCC warning */
  12         int flags[] = { TDB_DEFAULT, TDB_NOMMAP,
  13                         TDB_CONVERT, TDB_NOMMAP|TDB_CONVERT };
  14
  15         plan_tests(sizeof(flags) / sizeof(flags[0]) * 28);
  16         for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
  17                 tdb = tdb_open("run-open-multiple-times.tdb", flags[i],
  18                                O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
  19                 ok1(tdb);
  20                 if (!tdb)
  21                         continue;
  22                 tdb2 = tdb_open("run-open-multiple-times.tdb", flags[i],
  23                                 O_RDWR|O_CREAT, 0600, &tap_log_attr);
  24                 ok1(tdb_check(tdb, NULL, NULL) == 0);
  25                 ok1(tdb_check(tdb2, NULL, NULL) == 0);
  26
  27                 /* Store in one, fetch in the other. */
  28                 ok1(tdb_store(tdb, key, data, TDB_REPLACE) == 0);
  29                 ok1(tdb_fetch(tdb2, key, &d) == TDB_SUCCESS);
  30                 ok1(tdb_deq(d, data));
  31                 free(d.dptr);
  32
  33                 /* Vice versa, with delete. */
  34                 ok1(tdb_delete(tdb2, key) == 0);
  35                 ok1(tdb_fetch(tdb, key, &d) == TDB_ERR_NOEXIST);
  36
  37                 /* OK, now close first one, check second still good. */
  38                 ok1(tdb_close(tdb) == 0);
  39
  40                 ok1(tdb_store(tdb2, key, data, TDB_REPLACE) == 0);
  41                 ok1(tdb_fetch(tdb2, key, &d) == TDB_SUCCESS);
  42                 ok1(tdb_deq(d, data));
  43                 free(d.dptr);
  44
  45                 /* Reopen */
  46                 tdb = tdb_open("run-open-multiple-times.tdb", flags[i],
  47                                O_RDWR|O_CREAT, 0600, &tap_log_attr);
  48                 ok1(tdb);
  49
  50                 ok1(tdb_transaction_start(tdb2) == 0);
  51
  52                 /* Anything in the other one should fail. */
  53                 ok1(tdb_fetch(tdb, key, &d) == TDB_ERR_LOCK);
  54                 ok1(tap_log_messages == 1);
  55                 ok1(tdb_store(tdb, key, data, TDB_REPLACE) == TDB_ERR_LOCK);
  56                 ok1(tap_log_messages == 2);
  57                 ok1(tdb_transaction_start(tdb) == TDB_ERR_LOCK);
  58                 ok1(tap_log_messages == 3);
  59                 ok1(tdb_chainlock(tdb, key) == TDB_ERR_LOCK);
  60                 ok1(tap_log_messages == 4);
  61
  62                 /* Transaciton should work as normal. */
  63                 ok1(tdb_store(tdb2, key, data, TDB_REPLACE) == TDB_SUCCESS);
  64
  65                 /* Now... try closing with locks held. */
  66                 ok1(tdb_close(tdb2) == 0);
  67
  68                 ok1(tdb_fetch(tdb, key, &d) == TDB_SUCCESS);
  69                 ok1(tdb_deq(d, data));
  70                 free(d.dptr);
  71                 ok1(tdb_close(tdb) == 0);
  72                 ok1(tap_log_messages == 4);
  73                 tap_log_messages = 0;
  74         }
  75
  76         return exit_status();
  77 }