Question

I am new to pthread and I have gone through some tutorials. The tutorials say that I can pass only a single argument to a function used in thread. I solved the problem by using a structure for passing multiple arguments into the thread. But now on further study I came to the conclusion that a function in a thread can’t return any value and the only way to do that is the use of global variables. What I actually need is, I need two functions running in two different threads and the return value of one function need to the the input of the other and vice versa. What should I do to implement this need. Thanks in advance. And yes, linux is the platform.

Answer 1

Check pthread_join(). It will give value passed to pthread_exit(). You can try passing the value to pthread_exit() instead of returning from the thread_function.