public override void Done(GlobalOperationRegistration registration)
{
lock (_gate)
{
var result = _registrations.Remove(registration);
Contract.ThrowIfFalse(result);
if (_registrations.Count == 0)
{
var operations = _operations.AsImmutable();
_operations.Clear();
RaiseGlobalOperationStopped(operations, cancelled: false);
}
}
}
public override void Cancel(GlobalOperationRegistration registration)
{
lock (_gate)
{
var result = _registrations.Remove(registration);
Contract.ThrowIfFalse(result);
if (_registrations.Count == 0)
{
var operations = _operations.AsImmutable();
_operations.Clear();
// We don't care if an individual operation has canceled.
// We only care whether whole thing has cancelled or not.
RaiseGlobalOperationStopped(operations, cancelled: true);
}
}
}
public override GlobalOperationRegistration Start(string operation)
{
lock (_gate)
{
// create new registration
var registration = new GlobalOperationRegistration(this, operation);
// states
_registrations.Add(registration);
_operations.Add(operation);
// the very first one
if (_registrations.Count == 1)
{
Contract.ThrowIfFalse(_operations.Count == 1);
RaiseGlobalOperationStarted();
}
return(registration);
}
}
public abstract void Done(GlobalOperationRegistration registration);
public abstract void Cancel(GlobalOperationRegistration registration);