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// **********************************************************************
//
// Copyright (c) 2003-2014 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
using System;
using System.Threading;
using System.Collections;
using Demo;
public class WorkQueue
{
private class CallbackEntry
{
public AMD_Hello_sayHello cb;
public int delay;
}
public void Join()
{
thread_.Join();
}
public void Start()
{
thread_ = new Thread(new ThreadStart(Run));
thread_.Start();
}
public void Run()
{
lock(this)
{
while(!_done)
{
if(_callbacks.Count == 0)
{
Monitor.Wait(this);
}
if(_callbacks.Count != 0)
{
//
// Get next work item.
//
CallbackEntry entry = (CallbackEntry)_callbacks[0];
//
// Wait for the amount of time indicated in delay to
// emulate a process that takes a significant period of
// time to complete.
//
Monitor.Wait(this, entry.delay);
if(!_done)
{
//
// Print greeting and send response.
//
_callbacks.RemoveAt(0);
Console.Out.WriteLine("Belated Hello World!");
entry.cb.ice_response();
}
}
}
foreach(CallbackEntry e in _callbacks)
{
e.cb.ice_exception(new RequestCanceledException());
}
}
}
public void Add(AMD_Hello_sayHello cb, int delay)
{
lock(this)
{
if(!_done)
{
//
// Add the work item.
//
CallbackEntry entry = new CallbackEntry();
entry.cb = cb;
entry.delay = delay;
if(_callbacks.Count == 0)
{
Monitor.Pulse(this);
}
_callbacks.Add(entry);
}
else
{
//
// Destroyed, throw exception.
//
cb.ice_exception(new RequestCanceledException());
}
}
}
public void destroy()
{
lock(this)
{
_done = true;
Monitor.Pulse(this);
}
}
private ArrayList _callbacks = new ArrayList();
private bool _done = false;
private Thread thread_;
}
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