buffer_tree.h

   1
   2 struct btr_node;
   3
   4 typedef int (*btr_command_handler)(struct btr_node *btrn,
   5                 const char *command, char **result);
   6
   7 enum btr_node_type {
   8         BTR_NT_ROOT,
   9         BTR_NT_INTERNAL,
  10         BTR_NT_LEAF,
  11 };
  12
  13 struct btr_node *btr_new_node(const char *name, struct btr_node *parent,
  14                 btr_command_handler handler, void *context);
  15 void btr_remove_node(struct btr_node *btrn);
  16 void btr_free_node(struct btr_node *btrn);
  17 void btr_add_output(char *buf, size_t size, struct btr_node *btrn);
  18 bool btr_no_children(struct btr_node *btrn);
  19 size_t btr_bytes_pending(struct btr_node *btrn);
  20 size_t btr_get_input_queue_size(struct btr_node *btrn);
  21 bool btr_no_parent(struct btr_node *btrn);
  22 size_t btr_next_buffer(struct btr_node *btrn, char **bufp);
  23 void btr_consume(struct btr_node *btrn, size_t numbytes);
  24 int btr_exec(struct btr_node *btrn, const char *command, char **value_result);
  25 int btr_exec_up(struct btr_node *btrn, const char *command, char **value_result);
  26 void btr_splice_out_node(struct btr_node *btrn);
  27 void btr_pushdown(struct btr_node *btrn);
  28 void *btr_context(struct btr_node *btrn);
  29 void btr_merge(struct btr_node *btrn, size_t dest_size);
  30 bool btr_eof(struct btr_node *btrn);
  31 void btr_log_tree(struct btr_node *btrn, int loglevel);
  32 int btr_pushdown_one(struct btr_node *btrn);
  33 bool btr_inplace_ok(struct btr_node *btrn);
  34 int btr_node_status(struct btr_node *btrn, size_t min_iqs,
  35                 enum btr_node_type type);
  36 void btr_get_node_start(struct btr_node *btrn, struct timeval *tv);