git.ozlabs.org Git - ccan/blob - ccan/tdb2/test/run-firstkey-nextkey.c

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