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/tdb/hash.c>
  15 #include <ccan/tap/tap.h>
  16 #undef fcntl_with_lockcheck
  17 #include <stdlib.h>
  18 #include <stdbool.h>
  19 #include <err.h>
  20 #include "external-agent.h"
  21 #include "logging.h"
  22
  23 static struct agent *agent;
  24
  25 static bool correct_key(TDB_DATA key)
  26 {
  27         return key.dsize == strlen("hi")
  28                 && memcmp(key.dptr, "hi", key.dsize) == 0;
  29 }
  30
  31 static bool correct_data(TDB_DATA data)
  32 {
  33         return data.dsize == strlen("world")
  34                 && memcmp(data.dptr, "world", data.dsize) == 0;
  35 }
  36
  37 static int traverse(struct tdb_context *tdb, TDB_DATA key, TDB_DATA data,
  38                      void *p)
  39 {
  40         ok1(correct_key(key));
  41         ok1(correct_data(data));
  42         return 0;
  43 }
  44
  45 int main(int argc, char *argv[])
  46 {
  47         struct tdb_context *tdb;
  48         TDB_DATA key, data;
  49
  50         plan_tests(13);
  51         agent = prepare_external_agent();
  52         if (!agent)
  53                 err(1, "preparing agent");
  54
  55         tdb = tdb_open_ex("run-traverse-in-transaction.tdb",
  56                           1024, TDB_CLEAR_IF_FIRST, O_CREAT|O_TRUNC|O_RDWR,
  57                           0600, &taplogctx, NULL);
  58         ok1(tdb);
  59
  60         key.dsize = strlen("hi");
  61         key.dptr = (void *)"hi";
  62         data.dptr = (void *)"world";
  63         data.dsize = strlen("world");
  64
  65         ok1(tdb_store(tdb, key, data, TDB_INSERT) == 0);
  66
  67         ok1(external_agent_operation(agent, OPEN, tdb_name(tdb)) == SUCCESS);
  68
  69         ok1(tdb_transaction_start(tdb) == 0);
  70         ok1(external_agent_operation(agent, TRANSACTION_START, tdb_name(tdb))
  71             == WOULD_HAVE_BLOCKED);
  72         tdb_traverse(tdb, traverse, NULL);
  73
  74         /* That should *not* release the transaction lock! */
  75         ok1(external_agent_operation(agent, TRANSACTION_START, tdb_name(tdb))
  76             == WOULD_HAVE_BLOCKED);
  77         tdb_traverse_read(tdb, traverse, NULL);
  78
  79         /* That should *not* release the transaction lock! */
  80         ok1(external_agent_operation(agent, TRANSACTION_START, tdb_name(tdb))
  81             == WOULD_HAVE_BLOCKED);
  82         ok1(tdb_transaction_commit(tdb) == 0);
  83         /* Now we should be fine. */
  84         ok1(external_agent_operation(agent, TRANSACTION_START, tdb_name(tdb))
  85             == SUCCESS);
  86
  87         tdb_close(tdb);
  88
  89         return exit_status();
  90 }