libr3 is a high-performance path dispatching library. It compiles your route paths into a prefix tree (trie). By using the constructed prefix trie in the start-up time, you may dispatch your routes with efficiency
background : use r3_tree_insert_pathl_ex to add path,A : abcdefg B:abc
When the node A already exists, we set B, then will split the node and make a branch, suboath_len is 0
In this case, branch a zero len subpath, which tree's data not set
background : use r3_tree_insert_pathl_ex to add path,A : abcdefg B:abc When the node A already exists, we set B, then will split the node and make a branch, suboath_len is 0 In this case, branch a zero len subpath, which tree's data not set