/// <summary>
/// Check watched threads. Fire alarm if appropriate.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private static void WatchdogTimerElapsed(object sender, System.Timers.ElapsedEventArgs e)
{
int now = Environment.TickCount & Int32.MaxValue;
int msElapsed = now - LastWatchdogThreadTick;
if (msElapsed > WATCHDOG_INTERVAL_MS * 2)
{
m_log.WarnFormat(
"[WATCHDOG]: {0} ms since Watchdog last ran. Interval should be approximately {1} ms",
msElapsed, WATCHDOG_INTERVAL_MS);
}
LastWatchdogThreadTick = Environment.TickCount & Int32.MaxValue;
Action <ThreadWatchdogInfo> callback = OnWatchdogTimeout;
if (callback != null)
{
List <ThreadWatchdogInfo> callbackInfos = null;
lock (m_threads)
{
// get a copy since we may change m_threads
List <ThreadWatchdogInfo> threadsInfo = m_threads.Values.ToList();
foreach (ThreadWatchdogInfo threadInfo in threadsInfo)
{
if (threadInfo.Thread.ThreadState == ThreadState.Stopped)
{
RemoveThread(threadInfo.Thread.ManagedThreadId);
if (callbackInfos == null)
{
callbackInfos = new List <ThreadWatchdogInfo>();
}
callbackInfos.Add(threadInfo);
}
else if (!threadInfo.IsTimedOut && now - threadInfo.LastTick >= threadInfo.Timeout)
{
threadInfo.IsTimedOut = true;
if (threadInfo.AlarmIfTimeout)
{
if (callbackInfos == null)
{
callbackInfos = new List <ThreadWatchdogInfo>();
}
// Send a copy of the watchdog info to prevent race conditions where the watchdog
// thread updates the monitoring info after an alarm has been sent out.
callbackInfos.Add(new ThreadWatchdogInfo(threadInfo));
}
}
}
}
if (callbackInfos != null)
{
foreach (ThreadWatchdogInfo callbackInfo in callbackInfos)
{
callback(callbackInfo);
}
}
}
if (MemoryWatchdog.Enabled)
{
MemoryWatchdog.Update();
}
ChecksManager.CheckChecks();
StatsManager.RecordStats();
m_watchdogTimer.Start();
}
/// <summary>
/// Check watched threads. Fire alarm if appropriate.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private static void WatchdogTimerElapsed(object sender)
{
if (!m_enabled)
{
return;
}
int now = Environment.TickCount & Int32.MaxValue;
int msElapsed = now - LastWatchdogThreadTick;
if (msElapsed > WATCHDOG_INTERVAL_MS * 2)
{
m_log.WarnFormat(
"[WATCHDOG]: {0} ms since Watchdog last ran. Interval should be approximately {1} ms",
msElapsed, WATCHDOG_INTERVAL_MS);
}
LastWatchdogThreadTick = Environment.TickCount & Int32.MaxValue;
Action <ThreadWatchdogInfo> callback = OnWatchdogTimeout;
if (callback != null)
{
List <ThreadWatchdogInfo> callbackInfos = null;
List <ThreadWatchdogInfo> threadsToRemove = null;
const ThreadState thgone = ThreadState.Stopped;
lock (m_threads)
{
foreach (ThreadWatchdogInfo threadInfo in m_threads.Values)
{
if (!m_enabled)
{
return;
}
if ((threadInfo.Thread.ThreadState & thgone) != 0)
{
if (threadsToRemove == null)
{
threadsToRemove = new List <ThreadWatchdogInfo>();
}
threadsToRemove.Add(threadInfo);
/*
* if(callbackInfos == null)
* callbackInfos = new List<ThreadWatchdogInfo>();
*
* callbackInfos.Add(threadInfo);
*/
}
else if (!threadInfo.IsTimedOut && now - threadInfo.LastTick >= threadInfo.Timeout)
{
threadInfo.IsTimedOut = true;
if (threadInfo.AlarmIfTimeout)
{
if (callbackInfos == null)
{
callbackInfos = new List <ThreadWatchdogInfo>();
}
// Send a copy of the watchdog info to prevent race conditions where the watchdog
// thread updates the monitoring info after an alarm has been sent out.
callbackInfos.Add(new ThreadWatchdogInfo(threadInfo));
}
}
}
if (threadsToRemove != null)
{
foreach (ThreadWatchdogInfo twi in threadsToRemove)
{
RemoveThread(twi.Thread.ManagedThreadId);
}
}
}
if (callbackInfos != null)
{
foreach (ThreadWatchdogInfo callbackInfo in callbackInfos)
{
callback(callbackInfo);
}
}
}
if (MemoryWatchdog.Enabled)
{
MemoryWatchdog.Update();
}
ChecksManager.CheckChecks();
StatsManager.RecordStats();
m_watchdogTimer.Change(WATCHDOG_INTERVAL_MS, Timeout.Infinite);
}
