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

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