Keyword Analysis & Research: pthread_cond_signal


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  • 条件变量pthread_cond_wait()和pthread_cond_signal()详解

    cnblogs.com

    https://www.cnblogs.com/cthon/p/9084735.html

    WEB条件变量pthread_cond_wait ()和pthread_cond_signal ()详解. 条件变量. 条件变量是利用线程间共享的全局变量进行同步的一种机制，主要包括两个动作：一个线程等待"条件变量的条件成立"而挂起；另一个线程使"条件成立"（给出条件成立信号）。. 为了防止竞争，条件变 …

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  • pthread_cond_signal(3) - Linux man page

    die.net

    https://linux.die.net/man/3/pthread_cond_signal

    WEBThe pthread_cond_signal () function shall unblock at least one of the threads that are blocked on the specified condition variable cond (if any threads are blocked on cond ). If more than one thread is blocked on a condition variable, the scheduling policy shall determine the order in which threads are unblocked.

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  • 深入理解pthread_cond_wait、pthread_cond_signal - 明明是悟空

    cnblogs.com

    https://www.cnblogs.com/x_wukong/p/7909895.html

    WEBpthread_cond_signal函数的作用是发送一个信号给另外一个正在处于阻塞等待状态的线程,使其脱离阻塞状态,继续执行.如果没有线程处在阻塞等待状态,pthread_cond_signal也会成功返回。

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  • understanding of pthread_cond_wait() and pthread_cond_signal()

    stackoverflow.com

    https://stackoverflow.com/questions/16522858/understanding-of-pthread-cond-wait-and-pthread-cond-signal

    WEBSep 16, 2020 · pthread_cond_signal(&cond); pthread_mutex_unlock(&mutex); The steps are. pthread_cond_wait(&cond, &mutex); is called, it unlocks the mutex. Thread 2 locks the mutex and calls pthread_cond_signal(), which unlocks the mutex. In thread 1, pthread_cond_wait() is called and locks the mutex again.

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  • 线程同步之条件变量：pthread_cond_signal和pthread_cond_wait-…

    csdn.net

    https://blog.csdn.net/wuyu92877/article/details/119564619

    WEBAug 10, 2021 · 线程同步之条件变量：pthread_cond_signal和pthread_cond_wait. 在多线程编程下，常常出现A线程要等待B线程条件完成后再继续进行，这里等待方式有两种：. 1.使用锁+轮询. 使用这种方法可以很简单的实现，但是会有一定的性能消耗，其还有一个点要好好把握，就是一次 ...

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  • pthread_cond_signal(3p) - Linux manual page - man7.org

    man7.org

    https://www.man7.org/linux/man-pages/man3/pthread_cond_signal.3p.html

    WEBpthread_cond_signal — signal a condition SYNOPSIS top #include <pthread.h> int pthread_cond_signal(pthread_cond_t *cond); DESCRIPTION top Refer to pthread_cond_broadcast(3p). COPYRIGHT top

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  • Conditional wait and signal in multi-threading - GeeksforGeeks

    geeksforgeeks.org

    https://www.geeksforgeeks.org/condition-wait-signal-multi-threading/

    WEBJan 27, 2023 · Explanation: When you want to sleep a thread, condition variable can be used. In C under Linux, there is a function pthread_cond_wait () to wait or sleep. On the other hand, there is a function pthread_cond_signal () to wake up sleeping or waiting thread. Threads can wait on a condition variable.

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  • c - Is it guaranteed that pthread_cond_signal will wake up a waiting

    stackoverflow.com

    https://stackoverflow.com/questions/15486346/is-it-guaranteed-that-pthread-cond-signal-will-wake-up-a-waiting-thread

    WEBJun 25, 2017 · The pthread_cond_signal () call unblocks at least one of the threads that are blocked on the specified condition variable cond (if any threads are blocked on cond). The pthread_cond_broadcast () call unblocks all threads currently blocked on the specified condition variable cond. The longer answer:

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  • 读书笔记-深入理解 pthread_cond_wait、pthread_cond_signal - 知乎

    zhihu.com

    https://zhuanlan.zhihu.com/p/36104930

    WEBApr 25, 2018 · if (x > y) pthread_cond_signal(&cond); pthread_mutex_unlock(&mut); 其实函数的执行过程非常简单，在第一个线程执行到pthread_cond_wait(&cond,&mut)时，此时如果X<=Y，则此函数就将mut互斥量解锁 ，再将cond条件变量加锁 ，此时第一个线程挂起 （不占用任何CPU周期）。

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  • understanding pthread_cond_wait () and pthread_cond_signal ()

    stackoverflow.com

    https://stackoverflow.com/questions/20277033/understanding-pthread-cond-wait-and-pthread-cond-signal

    WEBNov 29, 2013 · (pthread_cond_signal wakes up at least one thread waiting on the given condition variable, and the thread chosen is determined by scheduling policy.) In your case, you need to reconsider what the "condition" represented by your condition variable (condvar) means.

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