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

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