创建多参数函数的pthread [英] Create pthread with the function of multiple arguments

问题描述

如果我要为以下函数创建一个 pthread.

If I am going to create a pthread for the following function.

假设一切正常.

pthread_create(&threadId, &attr, (void * (*)(void*))function, //what should be the arguments for here??);
int a = 0;
int b = 1;
//c and d are global variables.

void function(int a, int b){
    c = a;
    d = b;
}

推荐答案

这不起作用.function() 必须只接受一个参数.这就是为什么你必须这样做:

This does not work. function() has to take exactly one argument. That's why you have to do this:

(void * ()(void))

(void * ()(void))

你告诉你的编译器不，说真的，这个函数只接受一个参数"，当然它没有.

You're telling your compiler "no, seriously, this function only takes one argument", which of course it doesn't.

你必须做的是传递一个参数(比如一个指向结构的指针)，它为你提供所需的信息.

What you have to do instead is pass a single argument (say a pointer to a struct) which gets you the information you need.

参见此处的示例:numberpthread 中函数的参数

这篇关于创建多参数函数的pthread的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！