#include <stdio.h>

#include "test.h"
#include "tests.h"

typedef struct priv PRIV;

struct priv {
  int afd;
  int bfd;
  } ;

static void run_dummy_a(void *pv)
{
 PRIV *p;
 pid_t mypid;
 char c;

 p = pv;
 mypid = getpid();
 printf("dummy: a is %d\n",(int)mypid);
 sleep(1);
 printf("dummy: a sending PID to b\n");
 sleep(1);
 mustwrite(p->afd,&mypid,sizeof(pid_t));
 sleep(1);
 printf("dummy: a reading interlock\n");
 sleep(1);
 mustread(p->afd,&c,1);
 sleep(1);
 printf("dummy: a done\n");
}

static void run_dummy_b(void *pv)
{
 PRIV *p;
 pid_t apid;

 p = pv;
 printf("dummy: b is %d\n",(int)getpid());
 sleep(1);
 printf("dummy: b reading PID from a\n");
 sleep(1);
 mustread(p->bfd,&apid,sizeof(pid_t));
 sleep(1);
 printf("dummy: got PID %d\n",(int)apid);
 sleep(1);
 printf("dummy: b writing interlock to a\n");
 sleep(1);
 mustwrite(p->bfd,"",1);
 sleep(1);
 printf("dummy: b done\n");
}

static void run_dummy(void)
{
 PRIV p;
 KID *ka;
 KID *kb;

 local_socketpair(&p.afd,&p.bfd);
 ka = fork_kid(&run_dummy_a,&p);
 kb = fork_kid(&run_dummy_b,&p);
 close(p.afd);
 close(p.bfd);
 reap_kid(ka);
 reap_kid(kb);
 printf("dummy: done\n");
}

const TEST test_dummy = { &run_dummy };