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Add debug logs to project lock mechanism

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This commit is contained in:
Simon Detheridge 2021-07-08 12:14:52 +01:00
parent a3c4f8c4e6
commit 3b27a2ee6a
1 changed files with 12 additions and 0 deletions
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12
services/git-bridge/src/main/java/uk/ac/ic/wlgitbridge/data/ProjectLockImpl.java
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@ -7,6 +7,7 @@ import java.util.Map;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import uk.ac.ic.wlgitbridge.util.Log;
/**
* Created by Winston on 20/11/14.
@ -35,29 +36,40 @@ public class ProjectLockImpl implements ProjectLock {
@Override
public void lockForProject(String projectName) {
Log.debug("[{}] taking project lock", projectName);
getLockForProjectName(projectName).lock();
Log.debug("[{}] taking reentrant lock", projectName);
rlock.lock();
Log.debug("[{}] taken locks", projectName);
}
@Override
public void unlockForProject(String projectName) {
Log.debug("[{}] releasing project lock", projectName);
getLockForProjectName(projectName).unlock();
Log.debug("[{}] releasing reentrant lock", projectName);
rlock.unlock();
Log.debug("[{}] released locks", projectName);
if (waiting) {
Log.debug("[{}] waiting for remaining threads", projectName);
trySignal();
}
}
private void trySignal() {
int threads = rwlock.getReadLockCount();
Log.debug("-> waiting for {} threads", threads);
if (waiter != null && threads > 0) {
waiter.threadsRemaining(threads);
}
Log.debug("-> finished waiting for threads");
}
public void lockAll() {
Log.debug("-> locking all threads");
waiting = true;
trySignal();
Log.debug("-> locking reentrant write lock");
wlock.lock();
}