/**
* Sets the sync request client count. This is how many concurrent threads are processing sync
* request. This value is bounded: MIN_SYNC_REQUEST_CLIENTS <= count <= MAX_SYNC_REQUEST_CLIENTS.
*
* @param count number of sync request clients
*/
public void setSyncRequestClientCount(int count) {
m_syncRequestClientCount = boundSyncRequestClientCount(count);
if (m_syncRequestClientCount != count) {
s_log.info(
"Sync request client count ["
+ count
+ " ms] adjusted to fit bounds ["
+ m_syncRequestClientCount
+ " ms].");
}
ThreadUtils.alert(this);
}
/**
* Main loop of the broker thread. Invoked when the thread is started and terminates when the
* terminate flag is set. Some definitions: 1) Terminated Thread - A SyncRequestClient thread that
* has been requested to terminate but may still be finishing up a request. 2) Stopped Thread - A
* SyncRequestClient thread that has terminated and has stopped running.
*/
protected void service() {
while (getState() == State.Running) {
// Move the newly terminated threads to the terminated list to let them spin down.
removeTerminatedClients();
// Remove the threads on the terminated list that are no longer spinning.
purgeStoppedClients();
// Adjust the number of running threads
adjustClientCount();
// Brief pause...
ThreadUtils.alertableSleep(this, s_cycleTimeMS);
}
// Terminate all running threads
reduceClients(0);
// Wait for terminated threads to stop running.
while (m_terminatedClients.size() > 0) {
purgeStoppedClients();
ThreadUtils.alertableSleep(this, s_cycleTimeMS);
}
}