在C ++ / C中在后台运行定期循环

Question

I'm trying to create C++ program in the sense of embedded hardware programs that work in real time. The main loop in my C++ program uses a delay time of 250milliseconds. It's like:

int main()
{
  do{
   doSomething();
   delay(250);
  }while(1)
}

The delay in main loop is crucial for my program to operate. I need to check something else using 5ms delays.

sideJob()
{
   while(1){
    checkSomething();
    delay(5);
   }
}

How do I define the function sideJob to run at the same with the main loop. All in all, I need to get the hang of threading by using, if possible, simple functions. I'm using Linux. Any help will be greately appreaciated.

EDIT: This is what I got so far, But I want to run the sideJob and main thread at the same time.

#include <string>
#include <iostream>
#include <thread>

using namespace std;

//The function we want to make the thread run.
void task1(string msg)
{

     cout << "sideJob Running " << msg;

}

int main()
{  
    // Constructs the new thread and runs it. Does not block execution.
    thread t1(task1, "Hello");

    //Makes the main thread wait for the new thread to finish execution, therefore blocks its own execution.
    t1.join();
    while(1){
        printf("Continuous Job\n");   
    }
}

Answer 1

Use different threads in order to do this tasks in parallel.

To learn for more about this, look here . For an example on StackOverflow, look here .

You can also find plenty of tutorials out there (for example, here ).