/*Illustrates: thread creation, thread joining. */

#include <stddef.h>
#include <stdio.h>
#include <unistd.h>
#include "pthread.h"

void * process (void * arg)
{
  int i;
  printf("Starting process %s\n", (char *) arg);
  for (i = 0; i < 1000; i++) {
       printf((char *) arg);
  };
  return NULL;
}

int main(void)
{
  int retcode;
  pthread_t th_a, th_b, th_c, th_d, th_e, th_f, th_g, th_h;
  void * retval;

  retcode = pthread_create(&th;_a, NULL, process, (void *) "a");
  retcode = pthread_create(&th;_b, NULL, process, (void *) "b");
  retcode = pthread_create(&th;_c, NULL, process, (void *) "c");
  retcode = pthread_create(&th;_d, NULL, process, (void *) "d");

  retcode = pthread_join(th_a, &retval;);
  retcode = pthread_join(th_b, &retval;);

  retcode = pthread_create(&th;_e, NULL, process, (void *) "e");

  retcode = pthread_join(th_e, &retval;);
  retcode = pthread_join(th_c, &retval;);
  retcode = pthread_join(th_d, &retval;);

  retcode = pthread_create(&th;_f, NULL, process, (void *) "f");
  retcode = pthread_create(&th;_g, NULL, process, (void *) "g");
  retcode = pthread_create(&th;_h, NULL, process, (void *) "h");

  retcode = pthread_join(th_f, &retval;);
  retcode = pthread_join(th_g, &retval;);
  retcode = pthread_join(th_h, &retval;);

  return 0;
}