private void addAndStartSubscriberThread(SoftwareClockSubscriber sub)
{
lock (lockObj)
{
Thread thread = new Thread(new ParameterizedThreadStart(subscriberThreadProc));
subscriberThreads.Add(sub, thread);
runningSubscriberThreads++;
thread.Start(new SubscriberThreadParameters(sub, subscriberPollingPeriods_ms[sub], subscriberPritorities[sub]));
}
}
private void subscriberThreadProc(object param)
{
try
{
if (!(param is SubscriberThreadParameters))
{
throw new SoftwareClockProviderException("Passed wrong parameter type to subscriberThreadProc");
}
SubscriberThreadParameters parameters = (SubscriberThreadParameters)param;
SoftwareClockSubscriber subscriber = parameters.subscriber;
int minPollingPeriod_ms = parameters.minPollTime_ms;
int priority = parameters.priority;
uint lastPoll = elapsedTime_ms;
bool keepGoing = true;
while (keepGoing)
{
lock (synchronizationObject)
{
Monitor.Wait(synchronizationObject);
}
uint thisPoll = elapsedTime_ms;
if ((thisPoll - lastPoll) < minPollingPeriod_ms)
{
continue;
}
lastPoll = thisPoll;
try
{
keepGoing = subscriber.reachedTime(thisPoll, priority);
}
catch (Exception e)
{
if (!subscriber.handleExceptionOnClockThread(e))
{
throw;
}
}
}
}
finally
{
lock (lockObj)
runningSubscriberThreads--;
}
}
/// <summary>
/// Add a subscriber to this clock provider.
///
/// This function may be called even after the software clock has been started with a Start() call.
///
/// Priority is an optional integer parameter that gets passed to the subscriber in addition to the time
/// Subscriber may use this to decide among several clock sources.
///
/// All calls to the subscriber's reachTime and finish() methods are guaranteed to occur on one dedicated thread.
///
/// Note: if a subscriber subscriber to multiple providers, calls from different providers are NOT
/// guaranteed to be on the same thread.
/// </summary>
/// <param name="sub"></param>
/// <param name="minimumPollingPerios_ms"></param>
public void addSubscriber(SoftwareClockSubscriber sub, int minimumPollingPerios_ms = 0, int priority = 0)
{
lock (lockObj)
{
subscribers.Add(sub);
subscriberPollingPeriods_ms.Add(sub, minimumPollingPerios_ms);
subscriberPritorities.Add(sub, priority);
if (threadsRunning)
{
addAndStartSubscriberThread(sub);
}
}
}
/// <summary>
/// Add a subscriber to this clock provider.
///
/// This function may be called even after the software clock has been started with a Start() call.
///
/// Priority is an optional integer parameter that gets passed to the subscriber in addition to the time
/// Subscriber may use this to decide among several clock sources.
///
/// All calls to the subscriber's reachTime and finish() methods are guaranteed to occur on one dedicated thread.
///
/// Note: if a subscriber subscriber to multiple providers, calls from different providers are NOT
/// guaranteed to be on the same thread.
/// </summary>
/// <param name="sub"></param>
/// <param name="minimumPollingPerios_ms"></param>
public void addSubscriber(SoftwareClockSubscriber sub, int minimumPollingPerios_ms = 0, int priority=0)
{
lock (lockObj)
{
subscribers.Add(sub);
subscriberPollingPeriods_ms.Add(sub, minimumPollingPerios_ms);
subscriberPritorities.Add(sub, priority);
if (threadsRunning)
{
addAndStartSubscriberThread(sub);
}
}
}
public SubscriberThreadParameters(SoftwareClockSubscriber sub, int minPollTime_ms, int priority)
{
this.subscriber = sub;
this.minPollTime_ms = minPollTime_ms;
this.priority = priority;
}
private void addAndStartSubscriberThread(SoftwareClockSubscriber sub)
{
lock (lockObj)
{
Thread thread = new Thread(new ParameterizedThreadStart(subscriberThreadProc));
subscriberThreads.Add(sub, thread);
runningSubscriberThreads++;
thread.Start(new SubscriberThreadParameters(sub, subscriberPollingPeriods_ms[sub], subscriberPritorities[sub]));
}
}
public SubscriberThreadParameters(SoftwareClockSubscriber sub, int minPollTime_ms, int priority)
{
this.subscriber = sub;
this.minPollTime_ms = minPollTime_ms;
this.priority = priority;
}