semaphore

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semaphores in java

Has anyone got any idea how to i开发者_高级运维mplement a rudimentary semaphore in java without making use of wait(), notify() or synchronize.I am not looking for a solution to this problem just a poi[详细]

2023-02-15 03:05 分类：问答
Semaphore accessed by few processes concurently

Is it ok if 开发者_StackOverflowfew/couple of processes access semaphore concurently or semaphore should be accesed mutualy exclusive?Well, that\'s the purpose of semaphore - to be safely accessible f[详细]

2023-02-14 20:44 分类：问答
Boost mutexes and semaphores on disk or in memory?

I would like to know if Boost mutexes and semaphores store any infor开发者_StackOverflow中文版mation on the disk, or if there is an option to avoid that (e.g. storing the data in a memory block).[详细]

2023-02-14 11:48 分类：问答
does my solution satisfy the requirements for a mutual exclusion

i wrote 2 processes in order to satisfy mutual exclusion but om not sure if it is.. my initial flag value is 0.[详细]

2023-02-14 10:34 分类：问答
Waiting for a fully released semaphore?

Is it possible (in .net) to have a thread wait for a semaphore to be \"fully signaled?\" Specifically, here\'s what I\'m looking for:[详细]

2023-02-13 18:59 分类：问答
How can I Increment a POSIX sem_t semaphore by more than 1?

Can I have a sem_t (semaphore) object take a开发者_高级运维n a value of more than 1? Since sem_post only increments by 1. Is there a sem_set?Yes, a sem_t can take on a value of more than 1. You can us[详细]

2023-02-13 14:58 分类：问答
Are Semaphore P and V operations atomic?

Are 开发者_运维技巧the P() and V() operations that can be performed on a semaphore guarantee atomic? Can a semaphore prevent two processes getting into the P()?Suppose we have a binary semaphore, s, w[详细]

2023-02-13 04:06 分类：问答
Why does semop(semid,&wait[1],2); on a set of three semaphores decreases the value of 0th semaphore instead of 1st and 2nd semaphore?

I have a code where I am working on a set of 3 semaphores. I have a two sets struct sembuf wait[3],signal[3];[详细]

2023-02-12 18:45 分类：问答
List/Collection blocked until its filled

I am trying to achieve something easy to describe, but I cannot find how. I want to be blocked until a list has at least one element. Let\'s say we have two workers.[详细]

2023-02-12 02:16 分类：问答
the little book of semaphores

Below is code in which each thread must wait for each o开发者_StackOverflow社区ther thread to complete the rendezvous part and then wait until everyone has completed the critical section.[详细]

2023-02-11 13:37 分类：问答