#define FOR_EACH_BUFFER_REF_SAFE(_br, _tmp, _btrn) \
list_for_each_entry_safe((_br), (_tmp), &(_btrn)->input_queue, node)
-struct btr_node *btr_new_node(const char *name, struct btr_node *parent,
- btr_command_handler handler, void *context)
+/*
+ (parent, child):
+ (NULL, NULL): new, isolated node.
+ (NULL, c): new node becomes root, c must be old root
+ (p, NULL): new leaf node
+ (p, c): new internal node, ch must be child of p
+
+*/
+struct btr_node *btr_new_node(struct btr_node_description *bnd)
{
struct btr_node *btrn = para_malloc(sizeof(*btrn));
- btrn->name = para_strdup(name);
- btrn->parent = parent;
- btrn->execute = handler;
- btrn->context = context;
+ btrn->name = para_strdup(bnd->name);
+ btrn->parent = bnd->parent;
+ btrn->execute = bnd->handler;
+ btrn->context = bnd->context;
btrn->start.tv_sec = 0;
btrn->start.tv_usec = 0;
- if (parent)
- list_add_tail(&btrn->node, &parent->children);
+ if (bnd->parent)
+ list_add_tail(&btrn->node, &bnd->parent->children);
INIT_LIST_HEAD(&btrn->children);
INIT_LIST_HEAD(&btrn->input_queue);
- if (parent)
- PARA_INFO_LOG("added %s as child of %s\n", name, parent->name);
+ if (bnd->parent)
+ PARA_INFO_LOG("added %s as child of %s\n", bnd->name, bnd->parent->name);
else
- PARA_INFO_LOG("added %s as btr root\n", name);
+ PARA_INFO_LOG("added %s as btr root\n", bnd->name);
return btrn;
}
size_t btr_get_input_queue_size(struct btr_node *btrn)
{
struct btr_buffer_reference *br;
- size_t size = 0;
+ size_t size = 0, wrap_consumed = 0;
FOR_EACH_BUFFER_REF(br, btrn) {
- //PARA_CRIT_LOG("size: %zu\n", size);
+ if (br->wrap_count != 0) {
+ wrap_consumed = br->consumed;
+ continue;
+ }
size += br_available_bytes(br);
}
+ assert(wrap_consumed <= size);
+ size -= wrap_consumed;
return size;
}