#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "pvm3.h"

#define EXEC "hello_combined"
#define BUFF 100

int main(void){
  int cc, tid, mytid, ptid;
  char buf[BUFF];

  mytid = pvm_mytid();
  ptid = pvm_parent();

  if(ptid == PvmNoParent){
    cc = pvm_spawn(EXEC, (char**)0, 0, "", 1, &tid);
  
    if (cc == 1) {
      cc = pvm_recv(-1, -1);
      pvm_bufinfo(cc, (int*)0, (int*)0, &tid);
      pvm_upkstr(buf);
      printf("from t%x: %s\n", tid, buf);
    } else
      printf("can't spawn child\n");
  }
  else{
    strcpy(buf, "hello, world from ");
    gethostname(buf + strlen(buf), 64);
    pvm_initsend(PvmDataDefault);
    pvm_pkstr(buf);
    pvm_send(ptid, 1);
  }

  pvm_exit();
  exit(0);
}