.NET任务并行性的新手。目标是遍历树结构,其中每个分支由一个父节点,一个子节点和一个操作节点(如权重)组成。并为每个节点创建一个扩展对象并将其保存到db。我跟着可能的duplicate对话。但观察结果是树没有完全走过。这个过程会意外地提前退出。以下是我的代码:
public void InitializeScheduleVariables_Parallel(IResource ANode, double aNumRequired, double aBatchRequired, double aAcceptProbability, AppContext aAppContext, bool ARecursively = true)
{
var LTasks = new List<Task>();
var LUser = aAppContext.LocalContext.User;
LTasks.Add(Task.Factory.StartNew(() =>
{
var LNewContext = new AppContext(new DbContext(new Context(LUser)));
var LNewRep = new ResourceRepository(LNewContext);
ANode = LNewRep.Get(ANode.Id);
ANode.ResourceInstance_Create(); // Create the ResourceInstance on the Resourse if it not already exists.
ANode.ResourceInstance.Required = aNumRequired;
ANode.ResourceInstance.ScheduleSource = ResourceInstance.ScheduleSourceEnum.Undefined;
ANode.ResourceInstance.ScheduleState = ResourceInstance.ScheduleStateEnum.Unscheduled;
ANode.ResourceInstance.ScheduleMode = ResourceInstance.ScheduleModeEnum.Undefined;
ANode.ResourceInstance.BatchRequired = aBatchRequired;
ANode.ResourceInstance.ProbabilityOfCompletion = aAcceptProbability;
ANode.ResourceInstance.Save();
}));
if (ARecursively)
{
foreach (AssemblyLink LAssembly in ANode.GetOutEdges())
{
LTasks.Add(Task.Factory.StartNew(() =>
{
// SET The Variables for the Production Operations AS WELL
IOperationResource LOperation = LAssembly.Operation;
if (LOperation != null)
{
var LNewContext = new AppContext(new DbContext(new Context(LUser)));
var LNewRep = new OperationResourceRepository(LNewContext);
LOperation = LNewRep.Get(LOperation.Id);
LOperation.ResourceInstance_Create(); // Create the ResourceInstance on the Resourse if it not already exists.
LOperation.ResourceInstance.Required = aNumRequired / LAssembly.OutputQuantity;
LOperation.ResourceInstance.BatchRequired = aBatchRequired / LAssembly.OutputQuantity;
LOperation.ResourceInstance.ScheduleSource = ResourceInstance.ScheduleSourceEnum.Undefined;
LOperation.ResourceInstance.ScheduleState = ResourceInstance.ScheduleStateEnum.Unscheduled;
LOperation.ResourceInstance.ScheduleMode = ResourceInstance.ScheduleModeEnum.Undefined;
LOperation.ResourceInstance.ProbabilityOfCompletion = aAcceptProbability;
LOperation.ResourceInstance.Save();
}
}));
LTasks.Add(Task.Factory.StartNew(() =>
{
// Recursively SET Child NODES
IResource LChildNode = LAssembly.Child;
double LNumRequired_Child = aNumRequired * LAssembly.InputQuantity / LAssembly.OutputQuantity;
double LNumBatchRequired_Child = LChildNode.Quantity * LAssembly.InputQuantity / LAssembly.OutputQuantity;
InitializeScheduleVariables_Parallel(LChildNode, LNumRequired_Child, LNumBatchRequired_Child, aAcceptProbability, aAppContext, ARecursively);
}));
}
}
Task.WaitAll(LTasks.ToArray());
}
有人可以分享一些想法吗?谢谢。