[jboss-jira] [JBoss JIRA] Commented: (JGRP-1132) AckReceiverWindow: make non blocking

[ https://jira.jboss.org/jira/browse/JGRP-1132?page=com.atlassian.jira.plug... ] Bela Ban commented on JGRP-1132: -------------------------------- A possible solution is to use a tombstone, which is a special instance of Message. When a message is removed, we don't remove it but call replace() on the ConcurrentHashMap, and replace the value with a tombstone. We also maintain a counter lowest_tombstone, which keeps track of the lowest tombstone that can safely be removed, without gaps in the seqno sequence. Method remove() removes all messages with a tombstone as value (CHM.remove(key, val, expected_val), up to next_to_remove -1. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira