File size: 1,327 Bytes
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// Licensed under the MIT License.
using System.Threading;
using Dbg = System.Management.Automation.Diagnostics;
namespace System.Management.Automation.Remoting
{
/// <summary>
/// Blocks caller trying to get the value of an object of type T
/// until the value is set. After the set all future gets are
/// unblocked.
/// </summary>
internal class AsyncObject<T> where T : class
{
/// <summary>
/// Value.
/// </summary>
private T _value;
/// <summary>
/// Value was set.
/// </summary>
private readonly ManualResetEvent _valueWasSet;
/// <summary>
/// Value.
/// </summary>
internal T Value
{
get
{
bool result = _valueWasSet.WaitOne();
if (!result)
{
_value = null;
}
return _value;
}
set
{
_value = value;
_valueWasSet.Set();
}
}
/// <summary>
/// Constructor for AsyncObject.
/// </summary>
internal AsyncObject()
{
_valueWasSet = new ManualResetEvent(false);
}
}
}
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