lunaix-os/kernel/mm/cake_export.c

   1 #include <lunaix/fs/twifs.h>
   2 #include <lunaix/mm/cake.h>
   3
   4 extern struct llist_header piles;
   5
   6 int
   7 __cake_stat_gonext(struct twimap* map)
   8 {
   9     struct cake_pile* pile = twimap_index(map, struct cake_pile*);
  10     if (pile->piles.next == &piles) {
  11         return 0;
  12     }
  13     map->index = list_entry(pile->piles.next, struct cake_pile, piles);
  14     return 1;
  15 }
  16
  17 void
  18 __cake_stat_reset(struct twimap* map)
  19 {
  20     map->index = container_of(&piles, struct cake_pile, piles);
  21     twimap_printf(map, "name, n_cakes, pg/cake, slices/cake, n_slices\n");
  22 }
  23
  24 void
  25 __cake_rd_stat(struct twimap* map)
  26 {
  27     struct cake_pile* pos = twimap_index(map, struct cake_pile*);
  28     twimap_printf(map,
  29                   "%s %d %d %d %d\n",
  30                   pos->pile_name,
  31                   pos->cakes_count,
  32                   pos->pg_per_cake,
  33                   pos->pieces_per_cake,
  34                   pos->alloced_pieces);
  35 }
  36
  37 void
  38 __cake_rd_psize(struct twimap* map)
  39 {
  40     struct cake_pile* pile = twimap_data(map, struct cake_pile*);
  41     twimap_printf(map, "%u", pile->piece_size);
  42 }
  43
  44 void
  45 __cake_rd_ccount(struct twimap* map)
  46 {
  47     struct cake_pile* pile = twimap_data(map, struct cake_pile*);
  48     twimap_printf(map, "%u", pile->cakes_count);
  49 }
  50
  51 void
  52 __cake_rd_alloced(struct twimap* map)
  53 {
  54     struct cake_pile* pile = twimap_data(map, struct cake_pile*);
  55     twimap_printf(map, "%u", pile->alloced_pieces);
  56 }
  57
  58 void
  59 __cake_rd_ppc(struct twimap* map)
  60 {
  61     struct cake_pile* pile = twimap_data(map, struct cake_pile*);
  62     twimap_printf(map, "%u", pile->pieces_per_cake);
  63 }
  64
  65 void
  66 __cake_rd_ppg(struct twimap* map)
  67 {
  68     struct cake_pile* pile = twimap_data(map, struct cake_pile*);
  69     twimap_printf(map, "%u", pile->pg_per_cake);
  70 }
  71
  72 void
  73 cake_export_pile(struct twifs_node* root, struct cake_pile* pile)
  74 {
  75     struct twifs_node* pile_rt = twifs_dir_node(root, pile->pile_name);
  76
  77     struct twimap* map = twifs_mapping(pile_rt, pile, "piece_size");
  78     map->read = __cake_rd_psize;
  79
  80     map = twifs_mapping(pile_rt, pile, "cake_count");
  81     map->read = __cake_rd_ccount;
  82
  83     map = twifs_mapping(pile_rt, pile, "grabbed");
  84     map->read = __cake_rd_alloced;
  85
  86     map = twifs_mapping(pile_rt, pile, "pieces_per_cake");
  87     map->read = __cake_rd_ppc;
  88
  89     map = twifs_mapping(pile_rt, pile, "page_per_cake");
  90     map->read = __cake_rd_ppg;
  91 }
  92
  93 void
  94 cake_export()
  95 {
  96     struct twifs_node* cake_root = twifs_dir_node(NULL, "cake");
  97
  98     struct twimap* map = twifs_mapping(cake_root, NULL, "pinkiepie");
  99     map->reset = __cake_stat_reset;
 100     map->go_next = __cake_stat_gonext;
 101     map->read = __cake_rd_stat;
 102
 103     struct cake_pile *pos, *n;
 104     llist_for_each(pos, n, &piles, piles)
 105     {
 106         cake_export_pile(cake_root, pos);
 107     }
 108 }
 109 EXPORT_TWIFS_PLUGIN(cake_alloc, cake_export);