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