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
  21 static struct agent *agent;
  22
  23 static bool correct_key(TDB_DATA key)
  24 {
  25         return key.dsize == strlen("hi")
  26                 && memcmp(key.dptr, "hi", key.dsize) == 0;
  27 }
  28
  29 static bool correct_data(TDB_DATA data)
  30 {
  31         return data.dsize == strlen("world")
  32                 && memcmp(data.dptr, "world", data.dsize) == 0;
  33 }
  34
  35 static int traverse(struct tdb_context *tdb, TDB_DATA key, TDB_DATA data,
  36                      void *p)
  37 {
  38         ok1(correct_key(key));
  39         ok1(correct_data(data));
  40         return 0;
  41 }
  42
  43 int main(int argc, char *argv[])
  44 {
  45         struct tdb_context *tdb;
  46         TDB_DATA key, data;
  47
  48         plan_tests(13);
  49         agent = prepare_external_agent();
  50         if (!agent)
  51                 err(1, "preparing agent");
  52
  53         tdb = tdb_open("run-traverse-in-transaction.tdb",
  54                        1024, TDB_CLEAR_IF_FIRST, O_CREAT|O_TRUNC|O_RDWR, 0600);
  55         ok1(tdb);
  56
  57         key.dsize = strlen("hi");
  58         key.dptr = (void *)"hi";
  59         data.dptr = (void *)"world";
  60         data.dsize = strlen("world");
  61
  62         ok1(tdb_store(tdb, key, data, TDB_INSERT) == 0);
  63
  64         ok1(external_agent_operation(agent, OPEN, tdb_name(tdb)) == SUCCESS);
  65
  66         ok1(tdb_transaction_start(tdb) == 0);
  67         ok1(external_agent_operation(agent, TRANSACTION_START, tdb_name(tdb))
  68             == WOULD_HAVE_BLOCKED);
  69         tdb_traverse(tdb, traverse, NULL);
  70
  71         /* That should *not* release the transaction lock! */
  72         ok1(external_agent_operation(agent, TRANSACTION_START, tdb_name(tdb))
  73             == WOULD_HAVE_BLOCKED);
  74         tdb_traverse_read(tdb, traverse, NULL);
  75
  76         /* That should *not* release the transaction lock! */
  77         ok1(external_agent_operation(agent, TRANSACTION_START, tdb_name(tdb))
  78             == WOULD_HAVE_BLOCKED);
  79         ok1(tdb_transaction_commit(tdb) == 0);
  80         /* Now we should be fine. */
  81         ok1(external_agent_operation(agent, TRANSACTION_START, tdb_name(tdb))
  82             == SUCCESS);
  83
  84         tdb_close(tdb);
  85
  86         return exit_status();
  87 }