/* $%BEGINLICENSE%$
 Copyright (c) 2008, 2012, Oracle and/or its affiliates. All rights reserved.

 This program is free software; you can redistribute it and/or
 modify it under the terms of the GNU General Public License as
 published by the Free Software Foundation; version 2 of the
 License.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 02110-1301  USA

 $%ENDLICENSE%$ */


#ifndef _CHASSIS_STATS_H_
#define _CHASSIS_STATS_H_

#include <glib.h>
#include "chassis-exports.h"

typedef struct chassis_stats {
	volatile gint lua_mem_alloc;
	volatile gint lua_mem_free;
	volatile gint lua_mem_bytes;
	volatile gint lua_mem_bytes_max;
} chassis_stats_t;

CHASSIS_API chassis_stats_t *chassis_global_stats;

CHASSIS_API chassis_stats_t * chassis_stats_new(void);
CHASSIS_API void chassis_stats_free(chassis_stats_t *stats);

CHASSIS_API GHashTable* chassis_stats_get(chassis_stats_t *user_data);

#define CHASSIS_STATS_ALLOC_INC_NAME(name) ((chassis_global_stats != NULL) ? g_atomic_int_inc(&(chassis_global_stats->name ## _alloc)) : (void)0)
#define CHASSIS_STATS_FREE_INC_NAME(name) ((chassis_global_stats != NULL) ? g_atomic_int_inc(&(chassis_global_stats->name ## _free)) : (void)0)

/* the prototype of g_atomic_int_add() changed in 2.30.0 to
 * return a gint instead of nothing (void)
 */
#if GLIB_CHECK_VERSION(2, 30, 0)
#define CHASSIS_STATS_ADD_NAME(name, addme) ((chassis_global_stats != NULL) ? g_atomic_int_add(&(chassis_global_stats->name), addme) : 0)
#else
#define CHASSIS_STATS_ADD_NAME(name, addme) ((chassis_global_stats != NULL) ? g_atomic_int_add(&(chassis_global_stats->name), addme) : (void)0)
#endif
#define CHASSIS_STATS_GET_NAME(name) ((chassis_global_stats != NULL) ? g_atomic_int_get(&(chassis_global_stats->name)) : 0)
#define CHASSIS_STATS_SET_NAME(name, setme) ((chassis_global_stats != NULL) ? g_atomic_int_set(&(chassis_global_stats->name), setme) : (void)0)

#endif
