Add btr pool support to the fecdec filter.

[paraslash.git] / buffer_tree.h

diff --git a/buffer_tree.h b/buffer_tree.h
index 04217801f70b934eb25987aeb4237e919d13bc4c..b9cfc1e4094368986333ba1658e39086cea88b3d 100644 (file)
--- a/buffer_tree.h
+++ b/buffer_tree.h
@@ -1,8 +1,30 @@
 
 struct btr_node;
+struct btr_pool;
 
-struct btr_node *btr_new_node(char *name, struct btr_node *parent);
-void btr_del_node(struct btr_node *btrn);
+typedef int (*btr_command_handler)(struct btr_node *btrn,
+               const char *command, char **result);
+
+enum btr_node_type {
+       BTR_NT_ROOT,
+       BTR_NT_INTERNAL,
+       BTR_NT_LEAF,
+};
+
+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(const char *name, struct btr_node *parent,
+               btr_command_handler handler, void *context);
+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);
@@ -10,3 +32,16 @@ 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);
+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);