delta/python-packages/qpid-python.git/cpp/src/qpid/sys/Timer.h, branch QPID-6125-ProtocolRefactoring

NO-JIRA: Removed some unused Timer features (old cluster used to use them)

2012-12-21T17:04:22+00:00

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@1425036 13f79535-47bb-0310-9956-ffa450edef68

QPID-4514: Remove obsolete cluster code: ManagementAgent, Timer, doc

2012-12-19T21:22:13+00:00

WIP: rip out old cluster code, misc.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@1424118 13f79535-47bb-0310-9956-ffa450edef68

NO-JIRA: Fix previous TimerTask fix to workaround stupid windows.h symbol corruption

2012-07-06T15:29:47+00:00

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@1358265 13f79535-47bb-0310-9956-ffa450edef68

NO-JIRA: Fix for potential Timer deadlock issue:

2012-07-05T19:38:26+00:00

- Previously we used a mutex to prevent cancelling a TimerTask whilst it
  was still executing from within its callback in another thread.

  This violates the principle that you shouldn't hold locks when calling
  the arbitrary code in a callback, and so is subject to potential
  deadlock problems.

- This fix only works if no timer callback calls TimerTask::cancel();
  this is true with the current code. And there is no good reason to
  call cancel() from within a callback, as cancel is the default
  behviour in any case - you have to specifically reschedule a
  recurring timer.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@1357827 13f79535-47bb-0310-9956-ffa450edef68

QPID-3280: Performance problem with TTL messages.

2011-06-15T20:15:51+00:00

When sending a large number of messages with nonzero TTLs to a
cluster, overall message throughput drops by around 20-30% compared to
messages with TTL 0.

The previous approach to TTL in the cluster is replaced with a simpler
"cluster clock". Also QueueCleaner is executed in the cluster timer,
and modified to be deterministic in a cluster.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@1136170 13f79535-47bb-0310-9956-ffa450edef68

Aggregate Timer warnings.

2010-11-17T19:12:08+00:00

The Timer code logs a warning if a timer callback is started late or
overruns the start time for the next callback. In cases where there
are a lot of these warnings, the time taken to do the logging itself
severly worsens the situation.

This commit aggregates timer warnings and give a statistical report
every 5 seconds at most.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@1036169 13f79535-47bb-0310-9956-ffa450edef68

Give timer tasks a name for logging purposes.

2010-08-26T21:12:54+00:00

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@989925 13f79535-47bb-0310-9956-ffa450edef68

More generous overrun threshold for cluster timer to avoid excessive warnings.

2010-03-25T13:21:30+00:00

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@927383 13f79535-47bb-0310-9956-ffa450edef68

Replace PeriodicTimer with ClusterTimer, which inherits from Timer.

2010-01-29T22:59:09+00:00

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@904656 13f79535-47bb-0310-9956-ffa450edef68

Added PeriodicTimer interface for periodic tasks that need cluster synchronization.

2010-01-27T22:20:51+00:00

The ManagementAgent's periodic prociessing uses PeriodicTimer.
PeriodicTimerImpl is the default implementation for stand-alone
brokers, simple wrapper for sys::Timer.


git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@903866 13f79535-47bb-0310-9956-ffa450edef68