我该如何开始在纯C的主题？ [英] How do I start threads in plain C?

问题描述

我用叉子（）在C启动另一个进程。我如何开始一个新的线程？

I have used fork() in C to start another process. How do I start a new thread?

推荐答案

.ORG /维基/ POSIX_Threads> POSIX线程（通常被称为pthreads的），你要使用的东西。

Since you mentioned fork() I assume you're on a Unix-like system, in which case POSIX threads (usually referred to as pthreads) are what you want to use.

具体而言，在pthread_create（）是你需要创建一个新的线程功能。它的参数是：

Specifically, pthread_create() is the function you need to create a new thread. Its arguments are:

int  pthread_create(pthread_t  *  thread, pthread_attr_t * attr, void *
   (*start_routine)(void *), void * arg);

第一个参数是返回的指针线程ID。第二个参数是线程参数，除非你想用一个特定的优先级启动线程，可​​以为NULL。第三个参数是由线程执行的函数。第四个参数是传递到执行它的线程功能单一参数。

The first argument is the returned pointer to the thread id. The second argument is the thread arguments, which can be NULL unless you want to start the thread with a specific priority. The third argument is the function executed by the thread. The fourth argument is the single argument passed to the thread function when it is executed.

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