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.next, struct cake_pile, piles);
  21 }
  22
  23 void
  24 __cake_rd_stat(struct twimap* map)
  25 {
  26     struct cake_pile* pos = twimap_index(map, struct cake_pile*);
  27     twimap_printf(map,
  28                   "%s %d %d %d %d\n",
  29                   pos->pile_name,
  30                   pos->cakes_count,
  31                   pos->pg_per_cake,
  32                   pos->pieces_per_cake,
  33                   pos->alloced_pieces);
  34 }
  35
  36 void
  37 __cake_rd_psize(struct twimap* map)
  38 {
  39     struct cake_pile* pile = twimap_data(map, struct cake_pile*);
  40     twimap_printf(map, "%u", pile->piece_size);
  41 }
  42
  43 void
  44 __cake_rd_ccount(struct twimap* map)
  45 {
  46     struct cake_pile* pile = twimap_data(map, struct cake_pile*);
  47     twimap_printf(map, "%u", pile->cakes_count);
  48 }
  49
  50 void
  51 __cake_rd_alloced(struct twimap* map)
  52 {
  53     struct cake_pile* pile = twimap_data(map, struct cake_pile*);
  54     twimap_printf(map, "%u", pile->alloced_pieces);
  55 }
  56
  57 void
  58 __cake_rd_ppc(struct twimap* map)
  59 {
  60     struct cake_pile* pile = twimap_data(map, struct cake_pile*);
  61     twimap_printf(map, "%u", pile->pieces_per_cake);
  62 }
  63
  64 void
  65 __cake_rd_ppg(struct twimap* map)
  66 {
  67     struct cake_pile* pile = twimap_data(map, struct cake_pile*);
  68     twimap_printf(map, "%u", pile->pg_per_cake);
  69 }
  70
  71 void
  72 cake_export_pile(struct twifs_node* root, struct cake_pile* pile)
  73 {
  74     struct twifs_node* pile_rt = twifs_dir_node(root, pile->pile_name);
  75
  76     struct twimap* map = twifs_mapping(pile_rt, pile, "piece_size");
  77     map->read = __cake_rd_psize;
  78
  79     map = twifs_mapping(pile_rt, pile, "cake_count");
  80     map->read = __cake_rd_ccount;
  81
  82     map = twifs_mapping(pile_rt, pile, "grabbed");
  83     map->read = __cake_rd_alloced;
  84
  85     map = twifs_mapping(pile_rt, pile, "pieces_per_cake");
  86     map->read = __cake_rd_ppc;
  87
  88     map = twifs_mapping(pile_rt, pile, "page_per_cake");
  89     map->read = __cake_rd_ppg;
  90 }
  91
  92 void
  93 cake_export()
  94 {
  95     struct twifs_node* cake_root = twifs_dir_node(NULL, "cake");
  96
  97     struct twimap* map = twifs_mapping(cake_root, NULL, "pinkiepie");
  98     map->reset = __cake_stat_reset;
  99     map->go_next = __cake_stat_gonext;
 100     map->read = __cake_rd_stat;
 101     __cake_stat_reset(map);
 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);