public synchronized void Shutdown() {
this.m_IsStopped = true;
for (PoolThread thread : m_Threads) {
thread.doStop();
}
}
/**
* Constructor
*
* @param i_NoOfThreads
* @param i_MaxNoOfTasks
*/
public ThreadPool(int i_NoOfThreads, int i_MaxNoOfTasks) {
m_TaskQueue = new BlockingQueue(i_MaxNoOfTasks);
for (int i = 0; i < i_NoOfThreads; i++) {
m_Threads.add(new PoolThread(m_TaskQueue));
}
for (PoolThread thread : m_Threads) {
thread.start();
}
}
/* ------------------------------------------------------------ */
protected void newThread() {
synchronized (_threadsLock) {
if (_threads.size() < _maxThreads) {
PoolThread thread = new PoolThread();
_threads.add(thread);
thread.setName(_name + "." + _id++ + "." + thread.getId());
thread.start();
} else if (!_warned) {
_warned = true;
if (Log.isDebugEnabled()) {
Log.debug(String.format("Max threads for %s", this.getClass().getName()));
}
}
}
}
public static void main(String args[]) throws Exception {
taskQueue = new BlockingQueueTasks();
switchParser = new SwitchParser(args);
Task t = new Task(0, new ArrayList<String>(), switchParser.getSwitches().get("URL"));
taskQueue.enqueue(t);
int cantThreads = Integer.parseInt(switchParser.getSwitches().get("p"));
for (int i = 0; i < cantThreads; i++) {
threads.add(new PoolThread(taskQueue, switchParser));
}
for (PoolThread thread : threads) {
thread.start();
}
}
/**
* Run job.
*
* @return true
*/
public boolean dispatch(Runnable job) {
if (!isRunning() || job == null) return false;
PoolThread thread = null;
boolean spawn = false;
synchronized (_lock) {
// Look for an idle thread
int idle = _idle.size();
if (idle > 0) thread = (PoolThread) _idle.remove(idle - 1);
else {
// queue the job
_queued++;
if (_queued > _maxQueued) _maxQueued = _queued;
_jobs[_nextJobSlot++] = job;
if (_nextJobSlot == _jobs.length) _nextJobSlot = 0;
if (_nextJobSlot == _nextJob) {
// Grow the job queue
Runnable[] jobs = new Runnable[_jobs.length + _maxThreads];
int split = _jobs.length - _nextJob;
if (split > 0) System.arraycopy(_jobs, _nextJob, jobs, 0, split);
if (_nextJob != 0) System.arraycopy(_jobs, 0, jobs, split, _nextJobSlot);
_jobs = jobs;
_nextJob = 0;
_nextJobSlot = _queued;
}
spawn = _queued > _spawnOrShrinkAt;
}
}
if (thread != null) {
thread.dispatch(job);
} else if (spawn) {
newThread();
}
return true;
}
