/*
 * Copyright (c) 2009 Tomasz Grabiec
 *
 * This file is released under the GPL version 2 with the following
 * clarification and special exception:
 *
 *     Linking this library statically or dynamically with other modules is
 *     making a combined work based on this library. Thus, the terms and
 *     conditions of the GNU General Public License cover the whole
 *     combination.
 *
 *     As a special exception, the copyright holders of this library give you
 *     permission to link this library with independent modules to produce an
 *     executable, regardless of the license terms of these independent
 *     modules, and to copy and distribute the resulting executable under terms
 *     of your choice, provided that you also meet, for each linked independent
 *     module, the terms and conditions of the license of that module. An
 *     independent module is a module which is not derived from or based on
 *     this library. If you modify this library, you may extend this exception
 *     to your version of the library, but you are not obligated to do so. If
 *     you do not wish to do so, delete this exception statement from your
 *     version.
 *
 * Please refer to the file LICENSE for details.
 */

#include "vm/fault-inject.h"
#include "vm/object.h"

struct vm_fault_entry {
	bool enabled;
	struct vm_object *arg;
};

static struct vm_fault_entry vm_fault_entries[VM_FAULT_MAX];

bool vm_fault_enabled(enum vm_fault fault)
{
	if (fault < 0 || fault >= VM_FAULT_MAX)
		return false;

	return vm_fault_entries[fault].enabled;
}

struct vm_object *vm_fault_arg(enum vm_fault fault)
{
	if (fault < 0 || fault >= VM_FAULT_MAX)
		return NULL;

	return vm_fault_entries[fault].arg;
}

void native_vm_enable_fault(enum vm_fault fault,
					struct vm_object *arg)
{
	if (fault < 0 || fault >= VM_FAULT_MAX)
		return;

	vm_fault_entries[fault].enabled = true;
	vm_fault_entries[fault].arg = arg;
}

void native_vm_disable_fault(enum vm_fault fault)
{
	if (fault < 0 || fault >= VM_FAULT_MAX)
		return;

	vm_fault_entries[fault].enabled = false;
}
