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Background.cs
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Background.cs
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// Copyright 2017 Tim Oster. All rights reserved.
// Use of this source code is governed by the MIT license.
// More information can be found in the LICENSE file.
using System;
using System.Collections.Generic;
using System.Threading;
namespace rmnp
{
class Background
{
private static readonly object mutex = new object();
private static Queue<Action> actions = new Queue<Action>();
private static bool isRunning;
private static Thread thread;
internal static void Execute(Action action)
{
lock (mutex)
{
actions.Enqueue(action);
}
}
private static void Update()
{
while (isRunning)
{
Action action = null;
lock (mutex)
{
if (actions.Count > 0)
{
action = actions.Dequeue();
}
}
if (action != null) action();
else Thread.Sleep(50);
}
}
internal static void Start()
{
if (thread != null) return;
isRunning = true;
thread = new Thread(Update);
thread.Start();
}
internal static void Stop()
{
lock (mutex) actions.Clear();
isRunning = false;
thread = null;
// Does not wait for thread to exit because otherwise Background would deadlock if you try to call 'stop'
// from a Background invocation
}
}
}