mutex

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System-wide mutex in Python on Linux

Is there any easy way to have a system-wide mutex in Python on Linux? By \"system-wide\", I mean the mutex will be used by a group of Python开发者_如何学JAVA processes; this is in contrast to a tradit[详细]

2023-03-25 20:35 分类：问答
Assertion on mutex when using multiple threads and mutexes

As a part of a project I\'m writing a logger function. This logger function sends an e-mail when the program wants to log something. Since it has happened that the SMTP server was non responsive, I\'v[详细]

2023-03-23 18:15 分类：问答
Should I unlock if I call another function inside of a function?

Let\'s say I have a simple code like this functionA(){ lock(l开发者_如何学PythonockA); //doing something with a shared data;[详细]

2023-03-23 03:07 分类：问答
Delete a mutex from another process

Using the topic Overview - Handle Enumeration, number 5, the attempt Close mutex of another process and and information from Mutex analysis, the canary in the coal mine and discovering new families of[详细]

2023-03-23 01:43 分类：问答
Are mutex lock functions sufficient without volatile?

A coworker and I write software for a variety of platforms running on x86, x64, Itanium, PowerPC, and other 10 year old server CPUs.[详细]

2023-03-22 22:29 分类：问答
Use a mutex as a semaphore?

I need two threads to progress in a \"tick tock\" pattern.When implmented with a semaphore this looks fine:[详细]

2023-03-22 06:46 分类：问答
Pthread Mutex locking

I have a basic question on mutext handling. I have a file which appears at 2 other threads(out of 3). I need to mutually exclude access to it by a thread. So I do the following in a function called fr[详细]

2023-03-20 02:42 分类：问答
What happens when pthreads wait in mutex_lock/cond_wait?

I have a program that should get the maximum out of my cpu. It is multithreaded via pthreads that do their job well apart from the fact that t开发者_运维知识库hey \"only\" get my cores to about 60% l[详细]

2023-03-20 01:23 分类：问答
Is mutex+atomic necessary to make this code thread safe, or is mutex enough?

I have some doubts wether mutexes are enough to ensure thread safety of the following code example or if atomics are required. In short question is: Would making idxActive a regular int make this code[详细]

2023-03-16 20:18 分类：问答
What happens to a thread that got woken up by pthread_cond_signal() but lost competition for a mutex

Regarding this: How To Use Condition Variable Say we have number of consumer threads that execute such code (copied from the referenced page):[详细]

2023-03-16 17:23 分类：问答