Fix race in C++ demo where num_txs_broadcasted ++s before =0s
[ldk-c-bindings] / lightning-c-bindings / src / lightning / routing /
drwxr-xr-x   ..
-rw-r--r-- 655 mod.rs
-rw-r--r-- 73534 network_graph.rs
-rw-r--r-- 24271 router.rs