lib/tdb2/test/api-open-multiple-times.c

   1 #include <ccan/tdb2/tdb2.h>
   2 #include <ccan/tap/tap.h>
   3 #include <sys/types.h>
   4 #include <sys/stat.h>
   5 #include <fcntl.h>
   6 #include <stdlib.h>
   7 #include "logging.h"
   8
   9 int main(int argc, char *argv[])
  10 {
  11         unsigned int i, extra_messages;
  12         struct tdb_context *tdb, *tdb2;
  13         struct tdb_data key = { (unsigned char *)&i, sizeof(i) };
  14         struct tdb_data data = { (unsigned char *)&i, sizeof(i) };
  15         struct tdb_data d = { NULL, 0 }; /* Bogus GCC warning */
  16         int flags[] = { TDB_DEFAULT, TDB_NOMMAP,
  17                         TDB_CONVERT, TDB_NOMMAP|TDB_CONVERT,
  18                         TDB_VERSION1, TDB_NOMMAP|TDB_VERSION1,
  19                         TDB_CONVERT|TDB_VERSION1,
  20                         TDB_NOMMAP|TDB_CONVERT|TDB_VERSION1 };
  21
  22         plan_tests(sizeof(flags) / sizeof(flags[0]) * 28);
  23         for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
  24                 tdb = tdb_open("run-open-multiple-times.tdb", flags[i],
  25                                O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
  26                 ok1(tdb);
  27                 if (!tdb)
  28                         continue;
  29
  30                 if (flags[i] & TDB_VERSION1) {
  31                         extra_messages = 1;
  32                 } else {
  33                         extra_messages = 0;
  34                 }
  35                 tdb2 = tdb_open("run-open-multiple-times.tdb", flags[i],
  36                                 O_RDWR|O_CREAT, 0600, &tap_log_attr);
  37                 ok1(tdb_check(tdb, NULL, NULL) == 0);
  38                 ok1(tdb_check(tdb2, NULL, NULL) == 0);
  39
  40                 /* Store in one, fetch in the other. */
  41                 ok1(tdb_store(tdb, key, data, TDB_REPLACE) == 0);
  42                 ok1(tdb_fetch(tdb2, key, &d) == TDB_SUCCESS);
  43                 ok1(tdb_deq(d, data));
  44                 free(d.dptr);
  45
  46                 /* Vice versa, with delete. */
  47                 ok1(tdb_delete(tdb2, key) == 0);
  48                 ok1(tdb_fetch(tdb, key, &d) == TDB_ERR_NOEXIST);
  49
  50                 /* OK, now close first one, check second still good. */
  51                 ok1(tdb_close(tdb) == 0);
  52
  53                 ok1(tdb_store(tdb2, key, data, TDB_REPLACE) == 0);
  54                 ok1(tdb_fetch(tdb2, key, &d) == TDB_SUCCESS);
  55                 ok1(tdb_deq(d, data));
  56                 free(d.dptr);
  57
  58                 /* Reopen */
  59                 tdb = tdb_open("run-open-multiple-times.tdb", flags[i],
  60                                O_RDWR|O_CREAT, 0600, &tap_log_attr);
  61                 ok1(tdb);
  62
  63                 ok1(tdb_transaction_start(tdb2) == 0);
  64
  65                 /* Anything in the other one should fail. */
  66                 ok1(tdb_fetch(tdb, key, &d) == TDB_ERR_LOCK);
  67                 tap_log_messages -= extra_messages;
  68                 ok1(tap_log_messages == 1);
  69                 ok1(tdb_store(tdb, key, data, TDB_REPLACE) == TDB_ERR_LOCK);
  70                 tap_log_messages -= extra_messages;
  71                 ok1(tap_log_messages == 2);
  72                 ok1(tdb_transaction_start(tdb) == TDB_ERR_LOCK);
  73                 ok1(tap_log_messages == 3);
  74                 ok1(tdb_chainlock(tdb, key) == TDB_ERR_LOCK);
  75                 tap_log_messages -= extra_messages;
  76                 ok1(tap_log_messages == 4);
  77
  78                 /* Transaciton should work as normal. */
  79                 ok1(tdb_store(tdb2, key, data, TDB_REPLACE) == TDB_SUCCESS);
  80
  81                 /* Now... try closing with locks held. */
  82                 ok1(tdb_close(tdb2) == 0);
  83
  84                 ok1(tdb_fetch(tdb, key, &d) == TDB_SUCCESS);
  85                 ok1(tdb_deq(d, data));
  86                 free(d.dptr);
  87                 ok1(tdb_close(tdb) == 0);
  88                 ok1(tap_log_messages == 4);
  89                 tap_log_messages = 0;
  90         }
  91
  92         return exit_status();
  93 }