git.ozlabs.org Git - ccan/blob - ccan/tdb/test/run-traverse-in-transaction.c

   1 #define _XOPEN_SOURCE 500
   2 #include "lock-tracking.h"
   3 #define fcntl fcntl_with_lockcheck
   4 #include <ccan/tdb/tdb.h>
   5 #include <ccan/tdb/io.c>
   6 #include <ccan/tdb/tdb.c>
   7 #include <ccan/tdb/lock.c>
   8 #include <ccan/tdb/freelist.c>
   9 #include <ccan/tdb/traverse.c>
  10 #include <ccan/tdb/transaction.c>
  11 #include <ccan/tdb/error.c>
  12 #include <ccan/tdb/open.c>
  13 #include <ccan/tdb/check.c>
  14 #include <ccan/tap/tap.h>
  15 #undef fcntl_with_lockcheck
  16 #include <stdlib.h>
  17 #include <stdbool.h>
  18 #include <err.h>
  19 #include "external-agent.h"
  20 #include "logging.h"
  21
  22 static struct agent *agent;
  23
  24 static bool correct_key(TDB_DATA key)
  25 {
  26         return key.dsize == strlen("hi")
  27                 && memcmp(key.dptr, "hi", key.dsize) == 0;
  28 }
  29
  30 static bool correct_data(TDB_DATA data)
  31 {
  32         return data.dsize == strlen("world")
  33                 && memcmp(data.dptr, "world", data.dsize) == 0;
  34 }
  35
  36 static int traverse(struct tdb_context *tdb, TDB_DATA key, TDB_DATA data,
  37                      void *p)
  38 {
  39         ok1(correct_key(key));
  40         ok1(correct_data(data));
  41         return 0;
  42 }
  43
  44 int main(int argc, char *argv[])
  45 {
  46         struct tdb_context *tdb;
  47         TDB_DATA key, data;
  48
  49         plan_tests(13);
  50         agent = prepare_external_agent();
  51         if (!agent)
  52                 err(1, "preparing agent");
  53
  54         tdb = tdb_open_ex("run-traverse-in-transaction.tdb",
  55                           1024, TDB_CLEAR_IF_FIRST, O_CREAT|O_TRUNC|O_RDWR,
  56                           0600, &taplogctx, NULL);
  57         ok1(tdb);
  58
  59         key.dsize = strlen("hi");
  60         key.dptr = (void *)"hi";
  61         data.dptr = (void *)"world";
  62         data.dsize = strlen("world");
  63
  64         ok1(tdb_store(tdb, key, data, TDB_INSERT) == 0);
  65
  66         ok1(external_agent_operation(agent, OPEN, tdb_name(tdb)) == SUCCESS);
  67
  68         ok1(tdb_transaction_start(tdb) == 0);
  69         ok1(external_agent_operation(agent, TRANSACTION_START, tdb_name(tdb))
  70             == WOULD_HAVE_BLOCKED);
  71         tdb_traverse(tdb, traverse, NULL);
  72
  73         /* That should *not* release the transaction lock! */
  74         ok1(external_agent_operation(agent, TRANSACTION_START, tdb_name(tdb))
  75             == WOULD_HAVE_BLOCKED);
  76         tdb_traverse_read(tdb, traverse, NULL);
  77
  78         /* That should *not* release the transaction lock! */
  79         ok1(external_agent_operation(agent, TRANSACTION_START, tdb_name(tdb))
  80             == WOULD_HAVE_BLOCKED);
  81         ok1(tdb_transaction_commit(tdb) == 0);
  82         /* Now we should be fine. */
  83         ok1(external_agent_operation(agent, TRANSACTION_START, tdb_name(tdb))
  84             == SUCCESS);
  85
  86         tdb_close(tdb);
  87
  88         return exit_status();
  89 }