internal CancellationTokenRegistration InternalRegister(Action<object> callback, object stateForCallback, SynchronizationContext targetSyncContext, ExecutionContext executionContext)
{
this.ThrowIfDisposed();
if (!this.IsCancellationRequested)
{
int index = Thread.CurrentThread.ManagedThreadId % s_nLists;
CancellationCallbackInfo element = new CancellationCallbackInfo(callback, stateForCallback, targetSyncContext, executionContext, this);
if (this.m_registeredCallbacksLists == null)
{
SparselyPopulatedArray<CancellationCallbackInfo>[] arrayArray = new SparselyPopulatedArray<CancellationCallbackInfo>[s_nLists];
Interlocked.CompareExchange<SparselyPopulatedArray<CancellationCallbackInfo>[]>(ref this.m_registeredCallbacksLists, arrayArray, null);
}
if (this.m_registeredCallbacksLists[index] == null)
{
SparselyPopulatedArray<CancellationCallbackInfo> array = new SparselyPopulatedArray<CancellationCallbackInfo>(4);
Interlocked.CompareExchange<SparselyPopulatedArray<CancellationCallbackInfo>>(ref this.m_registeredCallbacksLists[index], array, null);
}
SparselyPopulatedArrayAddInfo<CancellationCallbackInfo> registrationInfo = this.m_registeredCallbacksLists[index].Add(element);
CancellationTokenRegistration registration = new CancellationTokenRegistration(this, element, registrationInfo);
if (!this.IsCancellationRequested)
{
return registration;
}
if (!registration.TryDeregister())
{
this.WaitForCallbackToComplete(element);
return new CancellationTokenRegistration();
}
}
callback(stateForCallback);
return new CancellationTokenRegistration();
}
public void Dispose()
{
if (!this.m_disposed)
{
if (this.m_linkingRegistrations != null)
{
foreach (CancellationTokenRegistration registration in this.m_linkingRegistrations)
{
registration.Dispose();
}
this.m_linkingRegistrations = null;
}
this.m_registeredCallbacksLists = null;
if (this.m_kernelEvent != null)
{
this.m_kernelEvent.Close();
this.m_kernelEvent = null;
}
this.m_disposed = true;
}
}
internal CancellationTokenRegistration InternalRegister(Action<object> callback, object stateForCallback, SynchronizationContext targetSyncContext, ExecutionContext executionContext)
{
this.ThrowIfDisposed();
if (!this.IsCancellationRequested)
{
int num = Thread.CurrentThread.ManagedThreadId % CancellationTokenSource.s_nLists;
CancellationCallbackInfo cancellationCallbackInfo = new CancellationCallbackInfo(callback, stateForCallback, targetSyncContext, executionContext, this);
SparselyPopulatedArray<CancellationCallbackInfo>[] array = this.m_registeredCallbacksLists;
if (array == null)
{
SparselyPopulatedArray<CancellationCallbackInfo>[] array2 = new SparselyPopulatedArray<CancellationCallbackInfo>[CancellationTokenSource.s_nLists];
array = Interlocked.CompareExchange<SparselyPopulatedArray<CancellationCallbackInfo>[]>(ref this.m_registeredCallbacksLists, array2, null);
if (array == null)
{
array = array2;
}
}
SparselyPopulatedArray<CancellationCallbackInfo> sparselyPopulatedArray = Volatile.Read<SparselyPopulatedArray<CancellationCallbackInfo>>(ref array[num]);
if (sparselyPopulatedArray == null)
{
SparselyPopulatedArray<CancellationCallbackInfo> value = new SparselyPopulatedArray<CancellationCallbackInfo>(4);
Interlocked.CompareExchange<SparselyPopulatedArray<CancellationCallbackInfo>>(ref array[num], value, null);
sparselyPopulatedArray = array[num];
}
SparselyPopulatedArrayAddInfo<CancellationCallbackInfo> registrationInfo = sparselyPopulatedArray.Add(cancellationCallbackInfo);
CancellationTokenRegistration result = new CancellationTokenRegistration(cancellationCallbackInfo, registrationInfo);
if (!this.IsCancellationRequested)
{
return result;
}
if (!result.TryDeregister())
{
return result;
}
}
callback(stateForCallback);
return default(CancellationTokenRegistration);
}
protected virtual void Dispose(bool disposing)
{
if (disposing)
{
if (this.m_disposed)
{
return;
}
if (this.m_timer != null)
{
this.m_timer.Dispose();
}
CancellationTokenRegistration[] linkingRegistrations = this.m_linkingRegistrations;
if (linkingRegistrations != null)
{
this.m_linkingRegistrations = null;
for (int i = 0; i < linkingRegistrations.Length; i++)
{
linkingRegistrations[i].Dispose();
}
}
this.m_registeredCallbacksLists = null;
if (this.m_kernelEvent != null)
{
this.m_kernelEvent.Close();
this.m_kernelEvent = null;
}
this.m_disposed = true;
}
}
/// <summary>
/// Releases unmanaged and - optionally - managed resources
/// </summary>
/// <param name="disposing"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
protected virtual void Dispose(bool disposing)
{
if (disposing && !_disposed)
{
if (_timer != null)
_timer.Dispose();
var linkingRegistrations = _linkingRegistrations;
if (linkingRegistrations != null)
{
_linkingRegistrations = null;
for (int i = 0; i < linkingRegistrations.Length; i++)
linkingRegistrations[i].Dispose();
}
_registeredCallbacksLists = null;
if (_kernelEvent != null)
{
_kernelEvent.Close();
_kernelEvent = null;
}
_disposed = true;
}
}
internal CancellationTokenRegistration InternalRegister(Action<object> callback, object stateForCallback, SynchronizationContext targetSyncContext, ExecutionContext executionContext)
{
ThrowIfDisposed();
if (!IsCancellationRequested)
{
var index = Thread.CurrentThread.ManagedThreadId % _nLists;
var element = new CancellationCallbackInfo(callback, stateForCallback, targetSyncContext, executionContext, this);
var registeredCallbacksLists = _registeredCallbacksLists;
if (registeredCallbacksLists == null)
{
var arrayArray2 = new SparselyPopulatedArray<CancellationCallbackInfo>[_nLists];
registeredCallbacksLists = Interlocked.CompareExchange<SparselyPopulatedArray<CancellationCallbackInfo>[]>(ref _registeredCallbacksLists, arrayArray2, null);
if (registeredCallbacksLists == null)
registeredCallbacksLists = arrayArray2;
}
var array = Volatile.Read<SparselyPopulatedArray<CancellationCallbackInfo>>(ref registeredCallbacksLists[index]);
if (array == null)
{
var array2 = new SparselyPopulatedArray<CancellationCallbackInfo>(4);
Interlocked.CompareExchange<SparselyPopulatedArray<CancellationCallbackInfo>>(ref registeredCallbacksLists[index], array2, null);
array = registeredCallbacksLists[index];
}
var registrationInfo = array.Add(element);
var registration = new CancellationTokenRegistration(element, registrationInfo);
if (!IsCancellationRequested)
return registration;
if (!registration.TryDeregister())
return registration;
}
callback(stateForCallback);
return new CancellationTokenRegistration();
}
