1. Thread Creation

if man pthread_create does not work: sudo apt install -y manpages-posix manpages-posix-dev

pthread_create(), pthread_join() 

  #include <pthread.h>
  int pthread_create(pthread_t *thread, const pthread_attr_t *attr, void *(*start_routine) (void *), void *arg);
  int pthread_join(pthread_t thread, void **retval);
threads-api/thread_create.c 

     1	#include <assert.h>
     2	#include <stdio.h>
     3	#include <pthread.h>
     4
     5	typedef struct {
     6	    int a;
     7	    int b;
     8	} myarg_t;
     9
    10	void *mythread(void *arg) {
    11	    myarg_t *args = (myarg_t *) arg;
    12	    printf("%d %d\n", args->a, args->b);
    13	    return NULL;
    14	}
    15
    16	int main(int argc, char *argv[]) {
    17	    pthread_t p;
    18	    myarg_t args = { 10, 20 };
    19
    20	    int rc = pthread_create(&p, NULL, mythread, &args);
    21	    assert(rc == 0);
    22	    (void) pthread_join(p, NULL);
    23	    printf("done\n");
    24	    return 0;
    25	}
      
$ gcc -Wall -o thread_create thread_create.c -pthread
$ ./thread_create
10 20
done
$