/// <summary>
/// Executes the callback passed as state and signals its completion when it has finished executing.
/// </summary>
/// <param name="state"></param>
private void HandleWorkItem(object state)
{
QueuedCallback qc = (QueuedCallback)state;
try { qc.Callback(qc.State); }
finally { DoneWorkItem(); }
}
/// <summary>Queues a user work item to the ThreadPool.</summary>
/// <param name="callback">The work item to be queued.</param>
/// <param name="state">State to be passed to the queued work item</param>
public void QueueUserWorkItem(WaitCallback callback, object state)
{
ThrowIfDisposed();
QueuedCallback qc = new QueuedCallback();
qc.Callback = callback;
qc.State = state;
Interlocked.Increment(ref _remainingWorkItems);
ThreadPool.QueueUserWorkItem(new WaitCallback(HandleWorkItem), qc);
}
/// <summary>
/// Queues a user work item to the ThreadPool.
/// </summary>
/// <param name="callback">The work item to be queued.</param>
/// <param name="state">State to be passed to the queued work item</param>
public void QueueUserWorkItem(WaitCallback callback, object state)
{
ThrowIfDisposed();
QueuedCallback qc = new QueuedCallback();
qc.Callback = callback;
qc.State = state;
Interlocked.Increment(ref _remainingWorkItems);
ThreadPool.QueueUserWorkItem(new WaitCallback(HandleWorkItem), qc);
}
/// <summary>Queues a user work item to the ThreadPool.</summary>
/// <param name="callback">The work item to be queued.</param>
/// <param name="state">State to be passed to the queued work item</param>
public void QueueUserWorkItem(WaitCallback callback, object state)
{
ThrowIfDisposed();
QueuedCallback qc = new QueuedCallback();
qc.Callback = callback;
qc.State = state;
lock (_done) _remainingWorkItems++;
ThreadPool.QueueUserWorkItem(new WaitCallback(HandleWorkItem), qc);
}
public void QueueWorkItem(Action act, object state)
{
ThrowIfDisposed();
QueuedCallback qc = new QueuedCallback();
qc.Callback = (x => act());
qc.State = state;
lock (_done)
_remainingWorkItems++;
ThreadPool.QueueUserWorkItem(new WaitCallback(HandleWorkItem), qc);
}
