| private Register ( System.Action callback, bool useSynchronizationContext ) : System.Threading.CancellationTokenRegistration | ||
| callback | System.Action | |
| useSynchronizationContext | bool | |
| Результат | System.Threading.CancellationTokenRegistration | |
internal CancellationTokenRegistration Register (Action callback, bool useSynchronizationContext)
{
CancellationTokenRegistration tokenReg = GetTokenReg ();
if (canceled) {
callback ();
} else {
bool temp = false;
lock (syncRoot) {
if (!(temp = canceled))
callbacks.Add (tokenReg, callback);
}
if (temp)
callback ();
}
return tokenReg;
}
/// <summary>
/// Registers a callback to be invoked when this CancellationToken is cancelled.
/// </summary>
/// <param name="callback">The action to be invoked.</param>
/// <returns>A registration object that can be used to deregister the callback.</returns>
public CancellationTokenRegistration Register(Action callback)
{
if (source != null)
{
return(source.Register(callback));
}
return(default(CancellationTokenRegistration));
}
