git.ozlabs.org Git - ccan/blob - ccan/tdb2/test/run-50-multiple-freelists.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/tap/tap.h>
   8 #include <ccan/tdb2/transaction.c>
   9 #include "logging.h"
  10 #include "layout.h"
  11
  12 int main(int argc, char *argv[])
  13 {
  14         tdb_off_t off;
  15         struct tdb_context *tdb;
  16         struct tdb_layout *layout;
  17         TDB_DATA key, data;
  18
  19         plan_tests(11);
  20         key.dptr = (unsigned char *)"Hello";
  21         data.dptr = (unsigned char *)"world";
  22         data.dsize = 5;
  23         key.dsize = 5;
  24
  25         /* Create a TDB with three free tables. */
  26         layout = new_tdb_layout(NULL);
  27         tdb_layout_add_freetable(layout);
  28         tdb_layout_add_freetable(layout);
  29         tdb_layout_add_freetable(layout);
  30         tdb_layout_add_free(layout, 80, 0);
  31         /* Used record prevent coalescing. */
  32         tdb_layout_add_used(layout, key, data, 6);
  33         tdb_layout_add_free(layout, 160, 1);
  34         key.dsize--;
  35         tdb_layout_add_used(layout, key, data, 7);
  36         tdb_layout_add_free(layout, 320, 2);
  37         key.dsize--;
  38         tdb_layout_add_used(layout, key, data, 8);
  39         tdb_layout_add_free(layout, 40, 0);
  40         tdb = tdb_layout_get(layout);
  41         ok1(tdb_check(tdb, NULL, NULL) == 0);
  42
  43         off = get_free(tdb, 0, 80 - sizeof(struct tdb_used_record), 0,
  44                        TDB_USED_MAGIC, 0);
  45         ok1(off == layout->elem[3].base.off);
  46         ok1(tdb->ftable_off == layout->elem[0].base.off);
  47
  48         off = get_free(tdb, 0, 160 - sizeof(struct tdb_used_record), 0,
  49                        TDB_USED_MAGIC, 0);
  50         ok1(off == layout->elem[5].base.off);
  51         ok1(tdb->ftable_off == layout->elem[1].base.off);
  52
  53         off = get_free(tdb, 0, 320 - sizeof(struct tdb_used_record), 0,
  54                        TDB_USED_MAGIC, 0);
  55         ok1(off == layout->elem[7].base.off);
  56         ok1(tdb->ftable_off == layout->elem[2].base.off);
  57
  58         off = get_free(tdb, 0, 40 - sizeof(struct tdb_used_record), 0,
  59                        TDB_USED_MAGIC, 0);
  60         ok1(off == layout->elem[9].base.off);
  61         ok1(tdb->ftable_off == layout->elem[0].base.off);
  62
  63         /* Now we fail. */
  64         off = get_free(tdb, 0, 0, 1, TDB_USED_MAGIC, 0);
  65         ok1(off == 0);
  66
  67         tdb_close(tdb);
  68         tdb_layout_free(layout);
  69
  70         ok1(tap_log_messages == 0);
  71         return exit_status();
  72 }