lib/tdb2/test/api-firstkey-nextkey.c

   1 #include <ccan/tdb2/tdb2.h>
   2 #include <ccan/tap/tap.h>
   3 #include <sys/types.h>
   4 #include <sys/stat.h>
   5 #include <fcntl.h>
   6 #include <stdlib.h>
   7 #include "logging.h"
   8
   9 #define NUM_RECORDS 1000
  10
  11 static bool store_records(struct tdb_context *tdb)
  12 {
  13         int i;
  14         struct tdb_data key = { (unsigned char *)&i, sizeof(i) };
  15         struct tdb_data data = { (unsigned char *)&i, sizeof(i) };
  16
  17         for (i = 0; i < NUM_RECORDS; i++)
  18                 if (tdb_store(tdb, key, data, TDB_REPLACE) != 0)
  19                         return false;
  20         return true;
  21 }
  22
  23 struct trav_data {
  24         unsigned int records[NUM_RECORDS];
  25         unsigned int calls;
  26 };
  27
  28 static int trav(struct tdb_context *tdb, TDB_DATA key, TDB_DATA dbuf, void *p)
  29 {
  30         struct trav_data *td = p;
  31         int val;
  32
  33         memcpy(&val, dbuf.dptr, dbuf.dsize);
  34         td->records[td->calls++] = val;
  35         return 0;
  36 }
  37
  38 /* Since tdb_nextkey frees dptr, we need to clone it. */
  39 static TDB_DATA dup_key(TDB_DATA key)
  40 {
  41         void *p = malloc(key.dsize);
  42         memcpy(p, key.dptr, key.dsize);
  43         key.dptr = p;
  44         return key;
  45 }
  46
  47 int main(int argc, char *argv[])
  48 {
  49         unsigned int i, j;
  50         int num;
  51         struct trav_data td;
  52         TDB_DATA k;
  53         struct tdb_context *tdb;
  54         union tdb_attribute seed_attr;
  55         enum TDB_ERROR ecode;
  56         int flags[] = { TDB_INTERNAL, TDB_DEFAULT, TDB_NOMMAP,
  57                         TDB_INTERNAL|TDB_CONVERT, TDB_CONVERT,
  58                         TDB_NOMMAP|TDB_CONVERT,
  59                         TDB_INTERNAL|TDB_VERSION1, TDB_VERSION1,
  60                         TDB_NOMMAP|TDB_VERSION1,
  61                         TDB_INTERNAL|TDB_CONVERT|TDB_VERSION1,
  62                         TDB_CONVERT|TDB_VERSION1,
  63                         TDB_NOMMAP|TDB_CONVERT|TDB_VERSION1 };
  64
  65         seed_attr.base.attr = TDB_ATTRIBUTE_SEED;
  66         seed_attr.base.next = &tap_log_attr;
  67         seed_attr.seed.seed = 6334326220117065685ULL;
  68
  69         plan_tests(sizeof(flags) / sizeof(flags[0])
  70                    * (NUM_RECORDS*6 + (NUM_RECORDS-1)*3 + 22) + 1);
  71         for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
  72                 tdb = tdb_open("api-firstkey-nextkey.tdb", flags[i],
  73                                O_RDWR|O_CREAT|O_TRUNC, 0600,
  74                                flags[i] & TDB_VERSION1 ? NULL : &seed_attr);
  75                 ok1(tdb);
  76                 if (!tdb)
  77                         continue;
  78
  79                 ok1(tdb_firstkey(tdb, &k) == TDB_ERR_NOEXIST);
  80
  81                 /* One entry... */
  82                 k.dptr = (unsigned char *)&num;
  83                 k.dsize = sizeof(num);
  84                 num = 0;
  85                 ok1(tdb_store(tdb, k, k, TDB_INSERT) == 0);
  86                 ok1(tdb_firstkey(tdb, &k) == TDB_SUCCESS);
  87                 ok1(k.dsize == sizeof(num));
  88                 ok1(memcmp(k.dptr, &num, sizeof(num)) == 0);
  89                 ok1(tdb_nextkey(tdb, &k) == TDB_ERR_NOEXIST);
  90
  91                 /* Two entries. */
  92                 k.dptr = (unsigned char *)&num;
  93                 k.dsize = sizeof(num);
  94                 num = 1;
  95                 ok1(tdb_store(tdb, k, k, TDB_INSERT) == 0);
  96                 ok1(tdb_firstkey(tdb, &k) == TDB_SUCCESS);
  97                 ok1(k.dsize == sizeof(num));
  98                 memcpy(&num, k.dptr, sizeof(num));
  99                 ok1(num == 0 || num == 1);
 100                 ok1(tdb_nextkey(tdb, &k) == TDB_SUCCESS);
 101                 ok1(k.dsize == sizeof(j));
 102                 memcpy(&j, k.dptr, sizeof(j));
 103                 ok1(j == 0 || j == 1);
 104                 ok1(j != num);
 105                 ok1(tdb_nextkey(tdb, &k) == TDB_ERR_NOEXIST);
 106
 107                 /* Clean up. */
 108                 k.dptr = (unsigned char *)&num;
 109                 k.dsize = sizeof(num);
 110                 num = 0;
 111                 ok1(tdb_delete(tdb, k) == 0);
 112                 num = 1;
 113                 ok1(tdb_delete(tdb, k) == 0);
 114
 115                 /* Now lots of records. */
 116                 ok1(store_records(tdb));
 117                 td.calls = 0;
 118
 119                 num = tdb_traverse(tdb, trav, &td);
 120                 ok1(num == NUM_RECORDS);
 121                 ok1(td.calls == NUM_RECORDS);
 122
 123                 /* Simple loop should match tdb_traverse */
 124                 for (j = 0, ecode = tdb_firstkey(tdb, &k); j < td.calls; j++) {
 125                         int val;
 126
 127                         ok1(ecode == TDB_SUCCESS);
 128                         ok1(k.dsize == sizeof(val));
 129                         memcpy(&val, k.dptr, k.dsize);
 130                         ok1(td.records[j] == val);
 131                         ecode = tdb_nextkey(tdb, &k);
 132                 }
 133
 134                 /* But arbitrary orderings should work too. */
 135                 for (j = td.calls-1; j > 0; j--) {
 136                         k.dptr = (unsigned char *)&td.records[j-1];
 137                         k.dsize = sizeof(td.records[j-1]);
 138                         k = dup_key(k);
 139                         ok1(tdb_nextkey(tdb, &k) == TDB_SUCCESS);
 140                         ok1(k.dsize == sizeof(td.records[j]));
 141                         ok1(memcmp(k.dptr, &td.records[j], k.dsize) == 0);
 142                         free(k.dptr);
 143                 }
 144
 145                 /* Even delete should work. */
 146                 for (j = 0, ecode = tdb_firstkey(tdb, &k);
 147                      ecode != TDB_ERR_NOEXIST;
 148                      j++) {
 149                         ok1(ecode == TDB_SUCCESS);
 150                         ok1(k.dsize == 4);
 151                         ok1(tdb_delete(tdb, k) == 0);
 152                         ecode = tdb_nextkey(tdb, &k);
 153                 }
 154
 155                 diag("delete using first/nextkey gave %u of %u records",
 156                      j, NUM_RECORDS);
 157                 ok1(j == NUM_RECORDS);
 158                 tdb_close(tdb);
 159         }
 160
 161         ok1(tap_log_messages == 0);
 162         return exit_status();
 163 }