Introduce btr_node_description.

[paraslash.git] / buffer_tree.h

diff --git a/buffer_tree.h b/buffer_tree.h
index 27f5da2fb9d971c16279a981ef5525372e23f5f6..cd8c28d347ad08e6e9481309989620e2d526a881 100644 (file)
--- a/buffer_tree.h
+++ b/buffer_tree.h
@@ -1,12 +1,37 @@
 
 struct btr_node;
+struct btr_pool;
 
 typedef int (*btr_command_handler)(struct btr_node *btrn,
                const char *command, char **result);
 
-struct btr_node *btr_new_node(char *name, struct btr_node *parent,
-               btr_command_handler handler, void *context);
-void btr_del_node(struct btr_node *btrn);
+enum btr_node_type {
+       BTR_NT_ROOT,
+       BTR_NT_INTERNAL,
+       BTR_NT_LEAF,
+};
+
+struct btr_node_description {
+       const char *name;
+       struct btr_node *parent;
+       btr_command_handler handler;
+       void *context;
+};
+
+size_t btr_pool_size(struct btr_pool *btrp);
+struct btr_pool *btr_pool_new(const char *name, size_t area_size);
+void btr_pool_free(struct btr_pool *btrp);
+size_t btr_pool_get_buffer(struct btr_pool *btrp, char **result);
+void btr_pool_allocate(struct btr_pool *btrp, size_t size);
+void btr_add_output_pool(struct btr_pool *btrp, size_t size,
+       struct btr_node *btrn);
+size_t btr_pool_unused(struct btr_pool *btrp);
+void btr_copy(const void *src, size_t n, struct btr_pool *btrp,
+       struct btr_node *btrn);
+
+struct btr_node *btr_new_node(struct btr_node_description *bnd);
+void btr_remove_node(struct btr_node *btrn);
+void btr_free_node(struct btr_node *btrn);
 void btr_add_output(char *buf, size_t size, struct btr_node *btrn);
 bool btr_no_children(struct btr_node *btrn);
 size_t btr_bytes_pending(struct btr_node *btrn);
@@ -16,6 +41,15 @@ size_t btr_next_buffer(struct btr_node *btrn, char **bufp);
 void btr_consume(struct btr_node *btrn, size_t numbytes);
 int btr_exec(struct btr_node *btrn, const char *command, char **value_result);
 int btr_exec_up(struct btr_node *btrn, const char *command, char **value_result);
-int btr_splice_out_node(struct btr_node *btrn);
+void btr_splice_out_node(struct btr_node *btrn);
 void btr_pushdown(struct btr_node *btrn);
 void *btr_context(struct btr_node *btrn);
+void btr_merge(struct btr_node *btrn, size_t dest_size);
+bool btr_eof(struct btr_node *btrn);
+void btr_log_tree(struct btr_node *btrn, int loglevel);
+int btr_pushdown_one(struct btr_node *btrn);
+bool btr_inplace_ok(struct btr_node *btrn);
+int btr_node_status(struct btr_node *btrn, size_t min_iqs,
+               enum btr_node_type type);
+void btr_get_node_start(struct btr_node *btrn, struct timeval *tv);
+struct btr_node *btr_search_node(const char *name, struct btr_node *root);