lib/tdb2/test/layout.h

   1 #ifndef TDB2_TEST_LAYOUT_H
   2 #define TDB2_TEST_LAYOUT_H
   3 #include "private.h"
   4
   5 struct tdb_layout *new_tdb_layout(void);
   6 void tdb_layout_add_freetable(struct tdb_layout *layout);
   7 void tdb_layout_add_free(struct tdb_layout *layout, tdb_len_t len,
   8                          unsigned ftable);
   9 void tdb_layout_add_used(struct tdb_layout *layout,
  10                          TDB_DATA key, TDB_DATA data,
  11                          tdb_len_t extra);
  12 void tdb_layout_add_capability(struct tdb_layout *layout,
  13                                uint64_t type,
  14                                bool write_breaks,
  15                                bool check_breaks,
  16                                bool open_breaks,
  17                                tdb_len_t extra);
  18
  19 #if 0 /* FIXME: Allow allocation of subtables */
  20 void tdb_layout_add_hashtable(struct tdb_layout *layout,
  21                               int htable_parent, /* -1 == toplevel */
  22                               unsigned int bucket,
  23                               tdb_len_t extra);
  24 #endif
  25 /* freefn is needed if we're using failtest_free. */
  26 struct tdb_context *tdb_layout_get(struct tdb_layout *layout,
  27                                    void (*freefn)(void *),
  28                                    union tdb_attribute *attr);
  29 void tdb_layout_write(struct tdb_layout *layout, void (*freefn)(void *),
  30                        union tdb_attribute *attr, const char *filename);
  31
  32 void tdb_layout_free(struct tdb_layout *layout);
  33
  34 enum layout_type {
  35         FREETABLE, FREE, DATA, HASHTABLE, CAPABILITY
  36 };
  37
  38 /* Shared by all union members. */
  39 struct tle_base {
  40         enum layout_type type;
  41         tdb_off_t off;
  42 };
  43
  44 struct tle_freetable {
  45         struct tle_base base;
  46 };
  47
  48 struct tle_free {
  49         struct tle_base base;
  50         tdb_len_t len;
  51         unsigned ftable_num;
  52 };
  53
  54 struct tle_used {
  55         struct tle_base base;
  56         TDB_DATA key;
  57         TDB_DATA data;
  58         tdb_len_t extra;
  59 };
  60
  61 struct tle_hashtable {
  62         struct tle_base base;
  63         int parent;
  64         unsigned int bucket;
  65         tdb_len_t extra;
  66 };
  67
  68 struct tle_capability {
  69         struct tle_base base;
  70         uint64_t type;
  71         tdb_len_t extra;
  72 };
  73
  74 union tdb_layout_elem {
  75         struct tle_base base;
  76         struct tle_freetable ftable;
  77         struct tle_free free;
  78         struct tle_used used;
  79         struct tle_hashtable hashtable;
  80         struct tle_capability capability;
  81 };
  82
  83 struct tdb_layout {
  84         unsigned int num_elems;
  85         union tdb_layout_elem *elem;
  86 };
  87 #endif /* TDB2_TEST_LAYOUT_H */