#ifndef _LIBRINGBUFFER_SHM_TYPES_H

#define _LIBRINGBUFFER_SHM_TYPES_H

/*

 * libringbuffer/shm_types.h

 *

 * Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; only

 * version 2.1 of the License.

 *

 * This library 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

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with this library; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

 */

#include <stdint.h>

#include <limits.h>

#include "shm_internal.h"

struct channel;

enum shm_object_type {

	SHM_OBJECT_SHM,

	SHM_OBJECT_MEM,

};

struct shm_object {

	enum shm_object_type type;

	size_t index;	/* within the object table */

	int shm_fd;	/* shm fd */

	int wait_fd[2];	/* fd for wait/wakeup */

	char *memory_map;

	size_t memory_map_size;

	uint64_t allocated_len;

	int shm_fd_ownership;

};

struct shm_object_table {

	size_t size;

	size_t allocated_len;

	struct shm_object objects[];

};

struct lttng_ust_shm_handle {

	struct shm_object_table *table;

	DECLARE_SHMP(struct channel, chan);

};

#endif /* _LIBRINGBUFFER_SHM_TYPES_H */