git.ozlabs.org Git - ccan/blob - ccan/tdb/test/run-nested-transactions.c

   1 #define _XOPEN_SOURCE 500
   2 #include "tdb/tdb.h"
   3 #include "tdb/io.c"
   4 #include "tdb/tdb.c"
   5 #include "tdb/lock.c"
   6 #include "tdb/freelist.c"
   7 #include "tdb/traverse.c"
   8 #include "tdb/transaction.c"
   9 #include "tdb/error.c"
  10 #include "tdb/open.c"
  11 #include "tap/tap.h"
  12 #include <stdlib.h>
  13 #include <stdbool.h>
  14 #include <err.h>
  15 int main(int argc, char *argv[])
  16 {
  17         struct tdb_context *tdb;
  18         TDB_DATA key, data;
  19
  20         plan_tests(27);
  21         key.dsize = strlen("hi");
  22         key.dptr = (void *)"hi";
  23
  24         tdb = tdb_open("/tmp/test4.tdb", 1024, TDB_CLEAR_IF_FIRST,
  25                        O_CREAT|O_TRUNC|O_RDWR, 0600);
  26         ok1(tdb);
  27
  28         /* No nesting by default. */
  29         ok1(tdb_transaction_start(tdb) == 0);
  30         data.dptr = (void *)"world";
  31         data.dsize = strlen("world");
  32         ok1(tdb_store(tdb, key, data, TDB_INSERT) == 0);
  33         data = tdb_fetch(tdb, key);
  34         ok1(data.dsize == strlen("world"));
  35         ok1(memcmp(data.dptr, "world", strlen("world")) == 0);
  36         free(data.dptr);
  37         ok1(tdb_transaction_start(tdb) != 0);
  38         ok1(tdb_error(tdb) == TDB_ERR_NESTING);
  39
  40         data = tdb_fetch(tdb, key);
  41         ok1(data.dsize == strlen("world"));
  42         ok1(memcmp(data.dptr, "world", strlen("world")) == 0);
  43         free(data.dptr);
  44         ok1(tdb_transaction_commit(tdb) == 0);
  45         data = tdb_fetch(tdb, key);
  46         ok1(data.dsize == strlen("world"));
  47         ok1(memcmp(data.dptr, "world", strlen("world")) == 0);
  48         free(data.dptr);
  49         tdb_close(tdb);
  50
  51         tdb = tdb_open("/tmp/test4.tdb", 1024, TDB_ALLOW_NESTING, O_RDWR, 0);
  52         ok1(tdb);
  53
  54         ok1(tdb_transaction_start(tdb) == 0);
  55         ok1(tdb_transaction_start(tdb) == 0);
  56         ok1(tdb_delete(tdb, key) == 0);
  57         ok1(tdb_transaction_commit(tdb) == 0);
  58         ok1(!tdb_exists(tdb, key));
  59         ok1(tdb_transaction_cancel(tdb) == 0);
  60         /* Surprise! Kills inner "committed" transaction. */
  61         ok1(tdb_exists(tdb, key));
  62
  63         ok1(tdb_transaction_start(tdb) == 0);
  64         ok1(tdb_transaction_start(tdb) == 0);
  65         ok1(tdb_delete(tdb, key) == 0);
  66         ok1(tdb_transaction_commit(tdb) == 0);
  67         ok1(!tdb_exists(tdb, key));
  68         ok1(tdb_transaction_commit(tdb) == 0);
  69         ok1(!tdb_exists(tdb, key));
  70         tdb_close(tdb);
  71
  72         return exit_status();
  73 }