public IDisposable RegisterTimer(Func <object, Task> callback, object state, TimeSpan dueTime, TimeSpan period)
{
var registration = new TimerRegistration(callback, state, dueTime, period);
this.Registrations.Add(registration);
return(registration.Disposable);
}
internal IDisposable Register(Action <object> callback, object state)
{
Contract.Assert(callback != null);
var registration = new TimerRegistration(callback, state);
lock (_addLock)
{
_newRegistrations.AddLast(registration);
}
return(registration);
}
public object Register(Action <object> callback, object state)
{
var registration = new TimerRegistration(callback, state);
lock (_registrations)
{
_registrations.Add(registration);
}
return(registration);
}
private static void Purge(LinkedList <TimerRegistration> registrations)
{
LinkedListNode <TimerRegistration> nextNode;
LinkedListNode <TimerRegistration> currentNode = registrations.First;
while (currentNode != null)
{
nextNode = currentNode.Next;
TimerRegistration registration = currentNode.Value;
if (registration.Disposed)
{
registrations.Remove(currentNode);
}
currentNode = nextNode;
}
}
private void InvokeCallbacks(LinkedList <TimerRegistration> registrations)
{
LinkedListNode <TimerRegistration> nextNode = registrations.First;
while (nextNode != null)
{
TimerRegistration registration = nextNode.Value;
try
{
registration.InvokeCallback();
}
catch (Exception ex)
{
_trace.WriteError(Resources.Trace_TimerCallbackException, ex);
}
nextNode = nextNode.Next;
}
}
/// <summary>
/// Determines whether the <see cref="T:System.Collections.Generic.ICollection`1"/> contains a specific value.
/// </summary>
/// <returns>
/// true if <paramref name="item"/> is found in the <see cref="T:System.Collections.Generic.ICollection`1"/>; otherwise, false.
/// </returns>
/// <param name="item">The object to locate in the <see cref="T:System.Collections.Generic.ICollection`1"/>.</param>
public bool Contains(TimerRegistration item)
{
return(this.Registrations.Contains(item));
}
/// <summary>
/// Adds an item to the <see cref="T:System.Collections.Generic.ICollection`1"/>.
/// </summary>
/// <param name="item">The object to add to the <see cref="T:System.Collections.Generic.ICollection`1"/>.</param><exception cref="T:System.NotSupportedException">The <see cref="T:System.Collections.Generic.ICollection`1"/> is read-only.</exception>
public void Add(TimerRegistration item)
{
this.Registrations.Add(item);
}
/// <summary>
/// Inserts an item to the <see cref="T:System.Collections.Generic.IList`1"/> at the specified index.
/// </summary>
/// <param name="index">The zero-based index at which <paramref name="item"/> should be inserted.</param><param name="item">The object to insert into the <see cref="T:System.Collections.Generic.IList`1"/>.</param><exception cref="T:System.ArgumentOutOfRangeException"><paramref name="index"/> is not a valid index in the <see cref="T:System.Collections.Generic.IList`1"/>.</exception><exception cref="T:System.NotSupportedException">The <see cref="T:System.Collections.Generic.IList`1"/> is read-only.</exception>
public void Insert(int index, TimerRegistration item)
{
this.Registrations.Insert(index, item);
}
/// <summary>
/// Determines the index of a specific item in the <see cref="T:System.Collections.Generic.IList`1"/>.
/// </summary>
/// <returns>
/// The index of <paramref name="item"/> if found in the list; otherwise, -1.
/// </returns>
/// <param name="item">The object to locate in the <see cref="T:System.Collections.Generic.IList`1"/>.</param>
public int IndexOf(TimerRegistration item)
{
return(this.Registrations.IndexOf(item));
}
/// <summary>
/// Removes the first occurrence of a specific object from the <see cref="T:System.Collections.Generic.ICollection`1"/>.
/// </summary>
/// <returns>
/// true if <paramref name="item"/> was successfully removed from the <see cref="T:System.Collections.Generic.ICollection`1"/>; otherwise, false. This method also returns false if <paramref name="item"/> is not found in the original <see cref="T:System.Collections.Generic.ICollection`1"/>.
/// </returns>
/// <param name="item">The object to remove from the <see cref="T:System.Collections.Generic.ICollection`1"/>.</param><exception cref="T:System.NotSupportedException">The <see cref="T:System.Collections.Generic.ICollection`1"/> is read-only.</exception>
public bool Remove(TimerRegistration item)
{
return(this.Registrations.Remove(item));
}
internal IDisposable Register(Action<object> callback, object state)
{
Contract.Assert(callback != null);
var registration = new TimerRegistration(callback, state);
lock (_addLock)
{
_newRegistrations.AddLast(registration);
}
return registration;
}
