用C线程间通信 [英] Inter Thread Communication in C

问题描述

由于我的项目的一部分，我必须使用线程来修改数值积分算法。

As a part of my project I have to modify a Numerical Integration Algorithm using threads.

这大致就是在传统的顺序发生的方法。

This is roughly what happens in the conventional sequential approach..

void Controller(struct DE)
{
    //initialization step
    for(;;)   //till the entire range has not been covered...
    {
         //compute the next time-point solution using the previously known solutions.
         NIiter();
         //then check if the result is acceptable or not and take the necessary steps...
    }
}

现在这就是我打算做的......

Now this is what I intend to do....

void Controller(struct DE)
{
    //initialization step
    for(;;)   //till the entire range has been covered...
    {
         //compute the next time using the previously known solution.
         NIiter();
         //when I have an approximate solution available..launch a thread to compute the next time-point using this approximate solution as a previous solution...something like forward pipelining...
         //then check if BOTH the results are acceptable or not and take the necessary steps...
    }
}

但我不知道如何来通知我的控制器的一个近似解可...所以它可以启动一个新的线程...

But I dont understand how to notify my controller that the an approximate solution is available...so it can launch a new thread...

这是我第一次接触多线程编程...所以原谅我，如果这似乎是一个明显的question..also我使用pthread库在我的项目...

This is my first exposure to multi-threaded programming...so forgive me if this seems to be an obvious question..also I am using Pthread library in my project...

推荐答案

这是一个很大的课题，但这里有一些提示

This is a vast topic but here are some pointers

1. 工作线程 - 基本上，创建一批线程，并有一个任务队列。他们采取队列之一，做的工作


2. IPC - 这里有信号量，共享内存，消息传递。链接是页面
在

1. Worker threads - Basically create a bunch of threads and have a queue of tasks. They take one of the queue and do the job
2. IPC - Here you have semaphores, shared memory, messaging passing. Links are on the page

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