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acquire lock before checking message listeners in MessagesCache

This commit is contained in:
Ravi Khadiwala 2023-07-25 15:05:00 -05:00 committed by Jon Chambers
parent 901c950ee6
commit baf98accd0
1 changed files with 4 additions and 1 deletions
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5
service/src/main/java/org/whispersystems/textsecuregcm/storage/MessagesCache.java
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@ -388,7 +388,10 @@ public class MessagesCache extends RedisClusterPubSubAdapter<String, String> imp
} }
public void removeMessageAvailabilityListener(final MessageAvailabilityListener listener) { public void removeMessageAvailabilityListener(final MessageAvailabilityListener listener) {
@Nullable final String queueName = queueNamesByMessageListener.get(listener); @Nullable final String queueName;
synchronized (messageListenersByQueueName) {
queueName = queueNamesByMessageListener.get(listener);
}
if (queueName != null) { if (queueName != null) {
unsubscribeFromKeyspaceNotifications(queueName); unsubscribeFromKeyspaceNotifications(queueName);