8287585b81
Instead of using the main 'mUidRulesFirstLock', add a granular lock for mUidBlockedState so that network state requests (which only use mUidBlockedState) doesn't get blocked on the highly contended 'mUidRulesFirstLock'. The risk with this change is that it is possible the underlying firewall rules are not consistent with the network blocked state that is returned to the apps. But technically, this is already case if there is an immediate update to network rules after app queries it's network access state. Bug: 209338078 Test: atest tests/cts/hostside/src/com/android/cts/net/HostsideRestrictBackgroundNetworkTests.java Change-Id: I6a913742647577256c9281dd8ebf4aa5422a49ee