locking

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SQL Compact Lock Timeout When Update Contains a Subquery

I am using SQL Server Compact 3.5 SP2 (3.5.8085.0) and am having trouble getting a update statement to complete.[详细]

2023-04-03 18:51 分类：问答
Device Locking in Android

I need to lock my phone without using the device physical button.I created an Activity that contains a Button. Clicking the Button should lock the phone (i.e it should be like this http://www.freeimag[详细]

2023-04-03 18:41 分类：问答
implement two level lock

I have writeen a dll to store some info in memroy, there are many threads want to visit the data at the same time, so I use a read/write lock to sync. And I export[详细]

2023-04-03 16:51 分类：问答
How to lock down Android tablet to only allow one app to run [closed]

Closed. This question is off-topic. It is not currently accepting answers. 开发者_如何学运维 Want to improve this question? Update the question so it's on-topic for Stack Overflow.[详细]

2023-04-03 11:37 分类：问答
Passing an instance method (of a struct) to ThreadStart seems to update a spurious instance as the original is unaffected

My problem is passing the this.folderFolder instance method to ThreadStart ctor. I step through it with dirAssThread and watch it update the instance data member correctly and complete, then I trap ba[详细]

2023-04-03 11:29 分类：问答
Is it possible to retain locks read with update lock in serializable, but releasing in case of read committed?

Consider following two transactions T1 begin tran set transaction isolation level read committed select name from foo with (UPDLOCK) where id = 1 --L1[详细]

2023-04-03 08:30 分类：问答
How to understand this CCAS locking machanizion used in AKKA?

I just came across a piece of code in akka. https://codereview.scala-lang.org/fisheye/browse/~raw,r=25521/scala-svn/scala/trunk/test/files/presentation/akka/src/akka/util/LockUtil.scala[详细]

2023-04-03 06:56 分类：问答
Is SqlConnection / SqlCommand thread safe?

I am currently creating a WCF web service. As part of its job, it will unfortunately need to do some fairly intensive computations, however these computations can fortunately be shared between calls[详细]

2023-04-02 11:32 分类：问答
How does making a locker object static affect its behavior?

Let\'s say I have a class with a member that looks like this: readonly object _locker; which I use to synchronize blocks of code like this:[详细]

2023-04-02 03:45 分类：问答
Thread synchronization. Why exactly this lock isn't enough to synchronize threads [duplicate]

This question already has answers here: Closed 11 years ago. Possible Duplicate: Threads synchronization. How exactly lock makes access to memory 'correct'?[详细]

2023-04-01 13:16 分类：问答