##// END OF EJS Templates
implab » ImplabNet
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added ICancellable.Cancel(Exception) to allow specify the reason of cancellation
added ICancellable.Cancel(Exception) to allow specify the reason of cancellation
cin - - Load All Authors

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r137:238e15580926 v2
r138:f75cfa58e3d4 v2
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BlockingQueue.cs
87 lines | 2.6 KiB | text/x-csharp | CSharpLexer
/ Implab / Parallels / BlockingQueue.cs
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cin
added the blocking queue
 r137 using System;
using System.Threading;
namespace Implab.Parallels {
public class BlockingQueue<T> : AsyncQueue<T> {
readonly object m_lock = new object();
public override void Enqueue(T value) {
base.Enqueue(value);
lock (m_lock)
Monitor.Pulse(m_lock);
}
public override void EnqueueRange(T[] data, int offset, int length) {
base.EnqueueRange(data, offset, length);
if (length > 1)
lock (m_lock)
Monitor.PulseAll(m_lock);
else
lock (m_lock)
Monitor.Pulse(m_lock);
}
public T GetItem(int timeout) {
T item;
var t1 = Environment.TickCount;
var dt = timeout;
while (!TryDequeue(out item)) {
lock (m_lock)
if (!Monitor.Wait(m_lock, dt))
throw new TimeoutException();
if (timeout >= 0) {
dt = timeout - Environment.TickCount + t1;
if (dt < 0)
throw new TimeoutException();
}
}
return item;
}
public T GetItem() {
T item;
while (!TryDequeue(out item))
lock (m_lock)
Monitor.Wait(m_lock);
return item;
}
public T[] GetRange(int max, int timeout) {
Safe.ArgumentInRange(max, 1, Int32.MaxValue, "max");
var buffer = new T[max];
int actual;
var t1 = Environment.TickCount;
var dt = timeout;
while (!TryDequeueRange(buffer,0,max,out actual)) {
lock (m_lock)
if (!Monitor.Wait(m_lock, dt))
throw new TimeoutException();
if (timeout >= 0) {
dt = timeout - Environment.TickCount + t1;
if (dt < 0)
throw new TimeoutException();
}
}
var data = new T[actual];
Array.Copy(buffer, data, actual);
return data;
}
public T[] GetRange(int max) {
Safe.ArgumentInRange(max, 1, Int32.MaxValue, "max");
var buffer = new T[max];
int actual;
while (!TryDequeueRange(buffer, 0, max, out actual))
lock (m_lock)
Monitor.Wait(m_lock);
var data = new T[actual];
Array.Copy(buffer, data, actual);
return data;
}
}
}