/*
 * This file is part of the Palacios Virtual Machine Monitor developed
 * by the V3VEE Project with funding from the United States National 
 * Science Foundation and the Department of Energy.  
 *
 * The V3VEE Project is a joint project between Northwestern University
 * and the University of New Mexico.  You can find out more at 
 * http://www.v3vee.org
 *
 * Copyright (c) 2011, Jack Lange <jacklange@cs.pitt.edu> 
 * Copyright (c) 2011, The V3VEE Project <http://www.v3vee.org> 
 * All rights reserved.
 *
 * Author: Jack Lange <jacklange@cs.pitt.edu>
 *
 * This is free software.  You are permitted to use,
 * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
 */

#ifndef __VMM_BARRIER_H__
#define __VMM_BARRIER_H__

#ifdef __V3VEE__


#include <util/vmm_lock.h>

struct v3_barrier {
    uint64_t cpus;
    int active;     // If 1, barrier is active, everyone must wait 
                    // If 0, barrier is clear, can proceed

    v3_lock_t lock;
};


int v3_init_barrier(struct v3_barrier * barrier);

int v3_activate_barrier(struct guest_info * core);
int v3_check_barrier(struct guest_info * core);


#endif

#endif