[英]TPL inner tasks
I have the following code: 我有以下代码:
List<Task> tasks = new List<Task>();
tasks.Add(Task.Factory.StartNew(() =>
{
rs1.Process();
}).ContinueWith((previousTask) =>
{
rs5.Process();
rs6.Process();
}));
tasks.Add(Task.Factory.StartNew(() =>
{
rs2.Process();
}));
tasks.Add(Task.Factory.StartNew(() =>
{
rs3.Process();
}));
try
{
Task.WaitAll(tasks.ToArray());
}
catch (AggregateException e)
{
}
when rs1.Process finishes() rs5.Process()and rs6.Process() run synchronous. 当rs1.Process finish()时rs5.Process()和rs6.Process()同步运行。 How do I run them asynchronous. 我如何异步运行它们。
If I use inner tasks they are not being awaited 如果我使用内部任务,就不会等待它们
You need an inner task list: 您需要一个内部任务列表:
tasks.Add(Task.Factory.StartNew(() =>
{
rs1.Process();
}).ContinueWith((previousTask) =>
{
List<Task> loInnerTasks = new List<Task>();
loInnerTasks.Add(Task.Run(() => rs5.Process()));
loInnerTasks.Add(Task.Run(() => rs6.Process()));
Task.WaitAll(loInnerTasks.ToArray());
}));
UPDATE (with TaskCreationOptions.AttachedToParent
): 更新(使用TaskCreationOptions.AttachedToParent
):
tasks.Add(Task.Factory.StartNew(() =>
{
rs1.Process();
}).ContinueWith((previousTask) =>
{
Task.Factory.StartNew(() => rs5.Process(), TaskCreationOptions.AttachedToParent);
Task.Factory.StartNew(() => rs6.Process(), TaskCreationOptions.AttachedToParent);
}));
Exceptions should also be caught in both ways. 异常也应以两种方式捕获。
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