53e6fd54e6
This patch implements an outstanding TODO in ConnectivityService to add synchronization over the map of network request ids to network agent info objects. This structure is accessed from multiple threads: - Binder thread on public aidl methods, most notably via getDefaultNetwork(). - Internal handler. This leads to many race conditions that can crash the system server and reboot the phone if getDefaultNetwork() is called on a Binder thread to service a public ConnectivityManager api while the default network state is being updated on the internal handler after losing the default network. Bug: 65911184 Test: runtest frameworks-net Change-Id: I86c830ebd559e31d4576a7606705a056afb064ac