多对象SyncLock？ [英] Multi-Object SyncLock?

问题描述

我想同时SyncLock多个对象，例如：


SyncLock objA，objB


''使用objA和objB做东西


结束SyncLock


但是只有两个人才能获得锁定对象可以同时锁定

。


当多个线程有条件地锁定这些

对象时我想防止可能的死锁订单。


这可能吗？如果有的话怎么样？


谢谢，


弗兰克

Hi,

I want to simultaneously SyncLock multiple objects, something like:

SyncLock objA, objB

'' do stuff with objA and objB

End SyncLock

but so that a lock is only obtained if BOTH objects can be locked obtained
simultaneously.

I want to prevent possible deadlocks when multiple threads lock these
objects conditionally and out of order.

Is that possible and if so how?

Thanks,

Frank

推荐答案

嗨弗兰克，

这样的东西？

SyncLock objA


SyncLock objB


结束SyncLock


结束SyncLock



Robin

Hi Frank,
Something like this?
SyncLock objA

SyncLock objB

End SyncLock

End SyncLock


Robin

这样的东西？

Something like this?

>

SyncLock objA

SyncLock objB

结束SyncLock

结束SyncLock

>
SyncLock objA
SyncLock objB
End SyncLock
End SyncLock

如果另一个线程这样做可能导致致命的拥抱：


SyncLock objB

SyncLock objA

结束SyncLock

结束SyncLock

That could lead to a deadly embrace if another thread does this:

SyncLock objB
SyncLock objA
End SyncLock
End SyncLock

如果另一个线程这样做，那可能导致致命的拥抱：

That could lead to a deadly embrace if another thread does this:

>

SyncLock objB

SyncLock objA

结束SyncLock

结束SyncLock

>
SyncLock objB
SyncLock objA
End SyncLock
End SyncLock

确实是死锁。


但是，我能想到的唯一另一件事是封装需要锁定到一个对象并锁定它的对象

。

Deadlock indeed.

However, the only other thing I can think of is to encapsulate the objects
that require locking into one object and to lock that.

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