internal QuerySettings WithDefaults()
{
QuerySettings settings = this;
if (settings.TaskScheduler == null)
{
settings.TaskScheduler = System.Threading.Tasks.TaskScheduler.Default;
}
if (!settings.DegreeOfParallelism.HasValue)
{
settings.DegreeOfParallelism = new int?(Scheduling.GetDefaultDegreeOfParallelism());
}
if (!settings.ExecutionMode.HasValue)
{
settings.ExecutionMode = 0;
}
if (!settings.MergeOptions.HasValue)
{
settings.MergeOptions = 0;
}
if (((ParallelMergeOptions)settings.MergeOptions) == ParallelMergeOptions.Default)
{
settings.MergeOptions = 2;
}
return(settings);
}
//-----------------------------------------------------------------------------------
// Copies the settings, replacing unspecified settings with defaults.
//
internal QuerySettings WithDefaults()
{
QuerySettings settings = this;
if (settings.TaskScheduler == null)
{
settings.TaskScheduler = TaskScheduler.Default;
}
if (settings.DegreeOfParallelism == null)
{
settings.DegreeOfParallelism = Scheduling.GetDefaultDegreeOfParallelism();
}
if (settings.ExecutionMode == null)
{
settings.ExecutionMode = ParallelExecutionMode.Default;
}
if (settings.MergeOptions == null)
{
settings.MergeOptions = ParallelMergeOptions.Default;
}
if (settings.MergeOptions == ParallelMergeOptions.Default)
{
settings.MergeOptions = ParallelMergeOptions.AutoBuffered;
}
Contract.Assert(settings.TaskScheduler != null);
Contract.Assert(settings.DegreeOfParallelism.HasValue);
Contract.Assert(settings.DegreeOfParallelism.Value >= 1 && settings.DegreeOfParallelism <= Scheduling.MAX_SUPPORTED_DOP);
Contract.Assert(settings.ExecutionMode != null);
Contract.Assert(settings.MergeOptions != null);
Contract.Assert(settings.MergeOptions != ParallelMergeOptions.Default);
return(settings);
}