Doubt with use of`pthread` in Posix

Question

I am using the following routine with library command pthread.h:

//
//  Declaração
//
pthread_t       threads[NUM_THREADS];

//
//  Criacao
//
for(...)
{
    pthread_create(&threads[i], NULL,   MainTH,     (void *)    &thread_args[i]);
}

//
//  execução 
//
for(...)
{
    pthread_join(threads[i], NULL);
}

That way they don’t work independently, right? await the termination of the other Thread

wanted to know, how do I work with them separately, independently?

Answer 1

The code seems correct. The pthread_create function starts the thread execution without locking, that is, the thread runs without interrupting the main stream. Finally, the pthread_join function awaits completion of all threads. This blocks the main flow so that each thread is finished one by one.