git.ozlabs.org Git - ccan/blob - ccan/tdb2/test/run-tdb1-nested-traverse.c

   1 #include "tdb1-lock-tracking.h"
   2 #define fcntl fcntl_with_lockcheck1
   3 #include "tdb2-source.h"
   4 #include <ccan/tap/tap.h>
   5 #undef fcntl
   6 #include <stdlib.h>
   7 #include <stdbool.h>
   8 #include <err.h>
   9 #include "tdb1-external-agent.h"
  10 #include "tdb1-logging.h"
  11
  12 static struct agent *agent;
  13
  14 static bool correct_key(TDB_DATA key)
  15 {
  16         return key.dsize == strlen("hi")
  17                 && memcmp(key.dptr, "hi", key.dsize) == 0;
  18 }
  19
  20 static bool correct_data(TDB_DATA data)
  21 {
  22         return data.dsize == strlen("world")
  23                 && memcmp(data.dptr, "world", data.dsize) == 0;
  24 }
  25
  26 static int traverse2(struct tdb1_context *tdb, TDB_DATA key, TDB_DATA data,
  27                      void *p)
  28 {
  29         ok1(correct_key(key));
  30         ok1(correct_data(data));
  31         return 0;
  32 }
  33
  34 static int traverse1(struct tdb1_context *tdb, TDB_DATA key, TDB_DATA data,
  35                      void *p)
  36 {
  37         ok1(correct_key(key));
  38         ok1(correct_data(data));
  39         ok1(external_agent_operation1(agent, TRANSACTION_START, tdb->name)
  40             == WOULD_HAVE_BLOCKED);
  41         tdb1_traverse(tdb, traverse2, NULL);
  42
  43         /* That should *not* release the transaction lock! */
  44         ok1(external_agent_operation1(agent, TRANSACTION_START, tdb->name)
  45             == WOULD_HAVE_BLOCKED);
  46         return 0;
  47 }
  48
  49 int main(int argc, char *argv[])
  50 {
  51         struct tdb1_context *tdb;
  52         TDB_DATA key, data;
  53
  54         plan_tests(17);
  55         agent = prepare_external_agent1();
  56         if (!agent)
  57                 err(1, "preparing agent");
  58
  59         tdb = tdb1_open_ex("run-nested-traverse.tdb", 1024, TDB_DEFAULT,
  60                           O_CREAT|O_TRUNC|O_RDWR, 0600, &taplogctx, NULL);
  61         ok1(tdb);
  62
  63         ok1(external_agent_operation1(agent, OPEN, tdb->name) == SUCCESS);
  64         ok1(external_agent_operation1(agent, TRANSACTION_START, tdb->name)
  65             == SUCCESS);
  66         ok1(external_agent_operation1(agent, TRANSACTION_COMMIT, tdb->name)
  67             == SUCCESS);
  68
  69         key.dsize = strlen("hi");
  70         key.dptr = (void *)"hi";
  71         data.dptr = (void *)"world";
  72         data.dsize = strlen("world");
  73
  74         ok1(tdb1_store(tdb, key, data, TDB_INSERT) == 0);
  75         tdb1_traverse(tdb, traverse1, NULL);
  76         tdb1_traverse_read(tdb, traverse1, NULL);
  77         tdb1_close(tdb);
  78
  79         return exit_status();
  80 }