#include <pthread.h>
#include <stdio.h>
#include <unistd.h>
#define BUFSIZE 1024
#define TEN_MILLION 10000000L

/* ARGSUSED */
void *threadout(void *args) {
   char buffer[BUFSIZE];
   char *c;
   struct timespec sleeptime;

   sleeptime.tv_sec = 0;
   sleeptime.tv_nsec = TEN_MILLION; 
   snprintf(buffer, BUFSIZE, "This is a thread from process %ld\n",
           (long)getpid());
   c = buffer;
   /*****************start of critical section ********************/
   while (*c != '\0') {
      fputc(*c, stderr);
      c++;
      nanosleep(&sleeptime, NULL);
   }
   /*******************end of critical section ********************/
   return NULL;
}