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 int main(int argc, char *argv[])
  42 {
  43         unsigned int i, j;
  44         int num;
  45         struct trav_data td;
  46         TDB_DATA k, k2;
  47         struct tdb_context *tdb;
  48         union tdb_attribute seed_attr;
  49
  50         int flags[] = { TDB_INTERNAL, TDB_DEFAULT, TDB_NOMMAP,
  51                         TDB_INTERNAL|TDB_CONVERT, TDB_CONVERT,
  52                         TDB_NOMMAP|TDB_CONVERT };
  53
  54         seed_attr.base.attr = TDB_ATTRIBUTE_SEED;
  55         seed_attr.base.next = &tap_log_attr;
  56         seed_attr.seed.seed = 6334326220117065685ULL;
  57
  58         plan_tests(sizeof(flags) / sizeof(flags[0])
  59                    * (NUM_RECORDS*4 + (NUM_RECORDS-1)*2 + 20) + 1);
  60         for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
  61                 tdb = tdb_open("run-traverse.tdb", flags[i],
  62                                O_RDWR|O_CREAT|O_TRUNC, 0600, &seed_attr);
  63                 ok1(tdb);
  64                 if (!tdb)
  65                         continue;
  66
  67                 ok1(tdb_firstkey(tdb).dptr == NULL);
  68                 ok1(tdb_error(tdb) == TDB_SUCCESS);
  69
  70                 /* One entry... */
  71                 k.dptr = (unsigned char *)&num;
  72                 k.dsize = sizeof(num);
  73                 num = 0;
  74                 ok1(tdb_store(tdb, k, k, TDB_INSERT) == 0);
  75                 k = tdb_firstkey(tdb);
  76                 ok1(k.dsize == sizeof(num));
  77                 ok1(memcmp(k.dptr, &num, sizeof(num)) == 0);
  78                 k2 = tdb_nextkey(tdb, k);
  79                 ok1(k2.dsize == 0 && k2.dptr == NULL);
  80                 free(k.dptr);
  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                 k = tdb_firstkey(tdb);
  88                 ok1(k.dsize == sizeof(num));
  89                 memcpy(&num, k.dptr, sizeof(num));
  90                 ok1(num == 0 || num == 1);
  91                 k2 = tdb_nextkey(tdb, k);
  92                 ok1(k2.dsize == sizeof(j));
  93                 free(k.dptr);
  94                 memcpy(&j, k2.dptr, sizeof(j));
  95                 ok1(j == 0 || j == 1);
  96                 ok1(j != num);
  97                 k = tdb_nextkey(tdb, k2);
  98                 ok1(k.dsize == 0 && k.dptr == NULL);
  99                 free(k2.dptr);
 100
 101                 /* Clean up. */
 102                 k.dptr = (unsigned char *)&num;
 103                 k.dsize = sizeof(num);
 104                 num = 0;
 105                 ok1(tdb_delete(tdb, k) == 0);
 106                 num = 1;
 107                 ok1(tdb_delete(tdb, k) == 0);
 108
 109                 /* Now lots of records. */
 110                 ok1(store_records(tdb));
 111                 td.calls = 0;
 112
 113                 num = tdb_traverse_read(tdb, trav, &td);
 114                 ok1(num == NUM_RECORDS);
 115                 ok1(td.calls == NUM_RECORDS);
 116
 117                 /* Simple loop should match tdb_traverse_read */
 118                 for (j = 0, k = tdb_firstkey(tdb); j < td.calls; j++) {
 119                         int val;
 120
 121                         ok1(k.dsize == sizeof(val));
 122                         memcpy(&val, k.dptr, k.dsize);
 123                         ok1(td.records[j] == val);
 124                         k2 = tdb_nextkey(tdb, k);
 125                         free(k.dptr);
 126                         k = k2;
 127                 }
 128
 129                 /* But arbitrary orderings should work too. */
 130                 for (j = td.calls-1; j > 0; j--) {
 131                         k.dptr = (unsigned char *)&td.records[j-1];
 132                         k.dsize = sizeof(td.records[j-1]);
 133                         k = tdb_nextkey(tdb, k);
 134                         ok1(k.dsize == sizeof(td.records[j]));
 135                         ok1(memcmp(k.dptr, &td.records[j], k.dsize) == 0);
 136                         free(k.dptr);
 137                 }
 138
 139                 /* Even delete should work. */
 140                 for (j = 0, k = tdb_firstkey(tdb); k.dptr; j++) {
 141                         ok1(k.dsize == 4);
 142                         ok1(tdb_delete(tdb, k) == 0);
 143                         k2 = tdb_nextkey(tdb, k);
 144                         free(k.dptr);
 145                         k = k2;
 146                 }
 147
 148                 diag("delete using first/nextkey gave %u of %u records",
 149                      j, NUM_RECORDS);
 150                 ok1(j == NUM_RECORDS);
 151                 tdb_close(tdb);
 152         }
 153
 154         ok1(tap_log_messages == 0);
 155         return exit_status();
 156 }