Refactor: Replace async Mutex for RaftInner.core_state with standard Mutex and a watch channel
In this commit, when joining the RaftCore task, the core_state is
first switched from Running to Joining. The thread then blocks
while awaiting the completion of the RaftCore task. Any other threads
observing the Joining state will wait for the first thread to finish
by monitoring a watch channel created by the initial thread.
Refactor: RaftInner::tx_shutdown changed to use std Mutex
RaftInner::tx_shutdown has been changed to use a standard
(synchronous) Mutex instead of an asynchronous one. This change is made
because tx_shutdown does not span across .await points, making the
asynchronous capabilities unnecessary.
Changelog
Refactor: Replace async Mutex for
RaftInner.core_statewith standard Mutex and a watch channelIn this commit, when joining the
RaftCoretask, thecore_stateis first switched fromRunningtoJoining. The thread then blocks while awaiting the completion of theRaftCoretask. Any other threads observing theJoiningstate will wait for the first thread to finish by monitoring awatchchannel created by the initial thread.Refactor:
RaftInner::tx_shutdownchanged to use std MutexRaftInner::tx_shutdownhas been changed to use a standard (synchronous) Mutex instead of an asynchronous one. This change is made becausetx_shutdowndoes not span across.awaitpoints, making the asynchronous capabilities unnecessary.This change is