lunaix-os/kernel/fs/defaults.c

   1 #include <lunaix/fs.h>
   2
   3 int
   4 default_file_close(struct v_file* file)
   5 {
   6     return 0;
   7 }
   8
   9 int
  10 default_file_seek(struct v_inode* inode, size_t offset)
  11 {
  12     return 0;
  13 }
  14
  15 int
  16 default_inode_open(struct v_inode* this, struct v_file* file)
  17 {
  18     return 0;
  19 }
  20
  21 int
  22 default_file_read(struct v_inode* inode, void* buffer, size_t len, size_t fpos)
  23 {
  24     return ENOTSUP;
  25 }
  26
  27 int
  28 default_file_write(struct v_inode* inode, void* buffer, size_t len, size_t fpos)
  29 {
  30     return ENOTSUP;
  31 }
  32
  33 int
  34 default_file_readdir(struct v_file* file, struct dir_context* dctx)
  35 {
  36     int i = 0;
  37     struct v_dnode *pos, *n;
  38     llist_for_each(pos, n, &file->dnode->children, siblings)
  39     {
  40         if (i < dctx->index) {
  41             i++;
  42             continue;
  43         }
  44         dctx->read_complete_callback(dctx, pos->name.value, pos->name.len, 0);
  45         break;
  46     }
  47 }
  48
  49 int
  50 default_inode_dirlookup(struct v_inode* this, struct v_dnode* dnode)
  51 {
  52     return ENOENT;
  53 }
  54
  55 int
  56 default_inode_rename(struct v_inode* from_inode,
  57                      struct v_dnode* from_dnode,
  58                      struct v_dnode* to_dnode)
  59 {
  60     return 0;
  61 }
  62
  63 int
  64 default_inode_sync(struct v_inode* this)
  65 {
  66     return 0;
  67 }
  68
  69 int
  70 default_inode_rmdir(struct v_inode* this, struct v_dnode* dir)
  71 {
  72     return ENOTSUP;
  73 }
  74
  75 int
  76 default_inode_mkdir(struct v_inode* this, struct v_dnode* dir)
  77 {
  78     return ENOTSUP;
  79 }
  80
  81 struct v_file_ops default_file_ops = { .close = default_file_close,
  82                                        .read = default_file_read,
  83                                        .seek = default_file_seek,
  84                                        .readdir = default_file_readdir };
  85
  86 struct v_inode_ops default_inode_ops = { .dir_lookup = default_inode_dirlookup,
  87                                          .sync = default_inode_sync,
  88                                          .open = default_inode_open,
  89                                          .rename = default_inode_rename,
  90                                          .rmdir = default_inode_rmdir };