71 lines
2.1 KiB
Plaintext
71 lines
2.1 KiB
Plaintext
///////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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using System;
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using System.Collections;
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using System.Threading;
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using Microsoft.Contracts;
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namespace Microsoft.Singularity.FileSystem {
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public class FSThreadPool {
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private int numThreads;
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private readonly Queue workQueue = new Queue();
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private readonly FSThreadPoolCallback workCallback;
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private bool keepGoing = true;
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[NotDelayed]
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public FSThreadPool(int threads, FSThreadPoolCallback callback) {
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numThreads = threads;
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workCallback = callback;
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while (threads > 0) {
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Thread t = new Thread(new ThreadStart(DoWork));
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t.Start();
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threads--;
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}
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}
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public void KillPool() {
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Monitor.Enter(workQueue);
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keepGoing = false;
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Monitor.PulseAll(workQueue);
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while (numThreads > 0) {
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Monitor.Wait(workQueue);
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}
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Monitor.Exit(workQueue);
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}
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public void EnqueueItem(FSRequestInfo request) {
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Monitor.Enter(workQueue);
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workQueue.Enqueue(request);
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Monitor.Pulse(workQueue);
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Monitor.Exit(workQueue);
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}
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private void DoWork() {
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while (true) {
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Monitor.Enter(workQueue);
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while (workQueue.Count == 0 && keepGoing) {
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Monitor.Wait(workQueue);
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}
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if (!keepGoing && workQueue.Count == 0) {
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numThreads--;
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Monitor.PulseAll(workQueue);
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Monitor.Exit(workQueue);
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break;
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}
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FSRequestInfo request = (FSRequestInfo)workQueue.Dequeue();
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Monitor.Exit(workQueue);
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workCallback(request);
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}
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}
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}
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}
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