lib/tdb2/test/run-50-multiple-freelists.c

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