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