lib/tdb2/test/run-tdb1-no-lock-during-traverse.c

   1 #include "private.h"
   2 #include <unistd.h>
   3 #include "tdb1-lock-tracking.h"
   4
   5 #define fcntl fcntl_with_lockcheck1
   6
   7 #include "tdb2-source.h"
   8 #include "tap-interface.h"
   9 #include <stdlib.h>
  10 #include <err.h>
  11 #include "logging.h"
  12
  13 #undef fcntl
  14
  15 #define NUM_ENTRIES 10
  16
  17 static bool prepare_entries(struct tdb_context *tdb)
  18 {
  19         unsigned int i;
  20         TDB_DATA key, data;
  21
  22         for (i = 0; i < NUM_ENTRIES; i++) {
  23                 key.dsize = sizeof(i);
  24                 key.dptr = (void *)&i;
  25                 data = tdb_mkdata("world", strlen("world"));
  26
  27                 if (tdb_store(tdb, key, data, 0) != TDB_SUCCESS)
  28                         return false;
  29         }
  30         return true;
  31 }
  32
  33 static void delete_entries(struct tdb_context *tdb)
  34 {
  35         unsigned int i;
  36         TDB_DATA key;
  37
  38         for (i = 0; i < NUM_ENTRIES; i++) {
  39                 key.dsize = sizeof(i);
  40                 key.dptr = (void *)&i;
  41
  42                 ok1(tdb_delete(tdb, key) == TDB_SUCCESS);
  43         }
  44 }
  45
  46 /* We don't know how many times this will run. */
  47 static int delete_other(struct tdb_context *tdb, TDB_DATA key, TDB_DATA data,
  48                         void *private_data)
  49 {
  50         unsigned int i;
  51         memcpy(&i, key.dptr, 4);
  52         i = (i + 1) % NUM_ENTRIES;
  53         key.dptr = (void *)&i;
  54         if (tdb_delete(tdb, key) != TDB_SUCCESS)
  55                 (*(int *)private_data)++;
  56         return 0;
  57 }
  58
  59 static int delete_self(struct tdb_context *tdb, TDB_DATA key, TDB_DATA data,
  60                         void *private_data)
  61 {
  62         ok1(tdb_delete(tdb, key) == TDB_SUCCESS);
  63         return 0;
  64 }
  65
  66 int main(int argc, char *argv[])
  67 {
  68         struct tdb_context *tdb;
  69         int errors = 0;
  70         union tdb_attribute hsize;
  71
  72         hsize.base.attr = TDB_ATTRIBUTE_TDB1_HASHSIZE;
  73         hsize.base.next = &tap_log_attr;
  74         hsize.tdb1_hashsize.hsize = 1024;
  75
  76         plan_tests(40);
  77         tdb = tdb_open("run-no-lock-during-traverse.tdb1",
  78                        TDB_VERSION1, O_CREAT|O_TRUNC|O_RDWR,
  79                        0600, &hsize);
  80
  81         ok1(tdb);
  82         ok1(prepare_entries(tdb));
  83         ok1(locking_errors1 == 0);
  84         ok1(tdb_lockall(tdb) == 0);
  85         ok1(locking_errors1 == 0);
  86         ok1(tdb_traverse(tdb, delete_other, &errors) >= 0);
  87         ok1(errors == 0);
  88         ok1(locking_errors1 == 0);
  89         tdb_unlockall(tdb);
  90
  91         ok1(prepare_entries(tdb));
  92         ok1(locking_errors1 == 0);
  93         ok1(tdb_lockall(tdb) == 0);
  94         ok1(locking_errors1 == 0);
  95         ok1(tdb_traverse(tdb, delete_self, NULL) == NUM_ENTRIES);
  96         ok1(locking_errors1 == 0);
  97         tdb_unlockall(tdb);
  98
  99         ok1(prepare_entries(tdb));
 100         ok1(locking_errors1 == 0);
 101         ok1(tdb_lockall(tdb) == 0);
 102         ok1(locking_errors1 == 0);
 103         delete_entries(tdb);
 104         ok1(locking_errors1 == 0);
 105         tdb_unlockall(tdb);
 106
 107         ok1(tdb_close(tdb) == 0);
 108
 109         return exit_status();
 110 }