write/alsa: Add btr support.

[paraslash.git] / buffer_tree.h

diff --git a/buffer_tree.h b/buffer_tree.h
index 04217801f70b934eb25987aeb4237e919d13bc4c..c84a93058e575ed6a8fdbc79c49160b2d0271985 100644 (file)
--- a/buffer_tree.h
+++ b/buffer_tree.h
@@ -1,7 +1,10 @@
 
 struct btr_node;
 
-struct btr_node *btr_new_node(char *name, struct btr_node *parent);
+typedef int (*btr_command_handler)(const char *command, char **result);
+
+struct btr_node *btr_new_node(char *name, struct btr_node *parent,
+               btr_command_handler handler);
 void btr_del_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);
@@ -10,3 +13,5 @@ size_t btr_get_input_queue_size(struct btr_node *btrn);
 bool btr_no_parent(struct btr_node *btrn);
 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);