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

   1 #define _XOPEN_SOURCE 500
   2 #include <ccan/tdb/tdb.h>
   3 #include <ccan/tdb/io.c>
   4 #include <ccan/tdb/tdb.c>
   5 #include <ccan/tdb/lock.c>
   6 #include <ccan/tdb/freelist.c>
   7 #include <ccan/tdb/traverse.c>
   8 #include <ccan/tdb/transaction.c>
   9 #include <ccan/tdb/error.c>
  10 #include <ccan/tdb/open.c>
  11 #include <ccan/tdb/check.c>
  12 #include <ccan/tap/tap.h>
  13 #include <stdlib.h>
  14 #include <stdbool.h>
  15 #include <err.h>
  16 #include "logging.h"
  17
  18 int main(int argc, char *argv[])
  19 {
  20         struct tdb_context *tdb;
  21         TDB_DATA key, data;
  22
  23         plan_tests(27);
  24         key.dsize = strlen("hi");
  25         key.dptr = (void *)"hi";
  26
  27         tdb = tdb_open_ex("run-nested-transactions.tdb",
  28                           1024, TDB_CLEAR_IF_FIRST,
  29                           O_CREAT|O_TRUNC|O_RDWR, 0600, &taplogctx, NULL);
  30         ok1(tdb);
  31
  32         /* No nesting by default. */
  33         ok1(tdb_transaction_start(tdb) == 0);
  34         data.dptr = (void *)"world";
  35         data.dsize = strlen("world");
  36         ok1(tdb_store(tdb, key, data, TDB_INSERT) == 0);
  37         data = tdb_fetch(tdb, key);
  38         ok1(data.dsize == strlen("world"));
  39         ok1(memcmp(data.dptr, "world", strlen("world")) == 0);
  40         free(data.dptr);
  41         ok1(tdb_transaction_start(tdb) != 0);
  42         ok1(tdb_error(tdb) == TDB_ERR_NESTING);
  43
  44         data = tdb_fetch(tdb, key);
  45         ok1(data.dsize == strlen("world"));
  46         ok1(memcmp(data.dptr, "world", strlen("world")) == 0);
  47         free(data.dptr);
  48         ok1(tdb_transaction_commit(tdb) == 0);
  49         data = tdb_fetch(tdb, key);
  50         ok1(data.dsize == strlen("world"));
  51         ok1(memcmp(data.dptr, "world", strlen("world")) == 0);
  52         free(data.dptr);
  53         tdb_close(tdb);
  54
  55         tdb = tdb_open_ex("run-nested-transactions.tdb",
  56                           1024, TDB_ALLOW_NESTING, O_RDWR, 0, &taplogctx, NULL);
  57         ok1(tdb);
  58
  59         ok1(tdb_transaction_start(tdb) == 0);
  60         ok1(tdb_transaction_start(tdb) == 0);
  61         ok1(tdb_delete(tdb, key) == 0);
  62         ok1(tdb_transaction_commit(tdb) == 0);
  63         ok1(!tdb_exists(tdb, key));
  64         ok1(tdb_transaction_cancel(tdb) == 0);
  65         /* Surprise! Kills inner "committed" transaction. */
  66         ok1(tdb_exists(tdb, key));
  67
  68         ok1(tdb_transaction_start(tdb) == 0);
  69         ok1(tdb_transaction_start(tdb) == 0);
  70         ok1(tdb_delete(tdb, key) == 0);
  71         ok1(tdb_transaction_commit(tdb) == 0);
  72         ok1(!tdb_exists(tdb, key));
  73         ok1(tdb_transaction_commit(tdb) == 0);
  74         ok1(!tdb_exists(tdb, key));
  75         tdb_close(tdb);
  76
  77         return exit_status();
  78 }