/* $NetBSD: citrus_mapper_local.h,v 1.2 2008/02/09 14:56:20 junyoung Exp $ */
/* $DragonFly: src/lib/libc/citrus/citrus_mapper_local.h,v 1.3 2008/04/10 10:21:01 hasso Exp $ */

/*-
 * Copyright (c)2003 Citrus Project,
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef _CITRUS_MAPPER_LOCAL_H_
#define _CITRUS_MAPPER_LOCAL_H_

#include "citrus_module.h"

#define _CITRUS_MAPPER_GETOPS_FUNC_BASE(_n_)				\
int _n_(struct _citrus_mapper_ops *, size_t, u_int32_t)
#define _CITRUS_MAPPER_GETOPS_FUNC(_n_)					\
_CITRUS_MAPPER_GETOPS_FUNC_BASE(_citrus_##_n_##_mapper_getops)

#define _CITRUS_MAPPER_DECLS(_m_)					\
static int	_citrus_##_m_##_mapper_init				\
	(struct _citrus_mapper_area *__restrict,			\
	 struct _citrus_mapper * __restrict, const char * __restrict,	\
	 const void * __restrict, size_t,				\
	 struct _citrus_mapper_traits * __restrict, size_t);		\
static void	_citrus_##_m_##_mapper_uninit(struct _citrus_mapper *);	\
static int	_citrus_##_m_##_mapper_convert				\
	(struct _citrus_mapper * __restrict,				\
	 _citrus_index_t * __restrict, _citrus_index_t,			\
	 void * __restrict);						\
static void	_citrus_##_m_##_mapper_init_state			\
	(struct _citrus_mapper * __restrict, void * __restrict);	\
CITRUS_MODULE(_m_, mapper, _citrus_##_m_##_mapper_getops)

#define _CITRUS_MAPPER_DEF_OPS(_m_)					\
struct _citrus_mapper_ops _citrus_##_m_##_mapper_ops = {		\
	/* mo_abi_version */	_CITRUS_MAPPER_ABI_VERSION,		\
	/* mo_init */		&_citrus_##_m_##_mapper_init,		\
	/* mo_uninit */		&_citrus_##_m_##_mapper_uninit,		\
	/* mo_convert */	&_citrus_##_m_##_mapper_convert,	\
	/* mo_init_state */	&_citrus_##_m_##_mapper_init_state	\
}

typedef _CITRUS_MAPPER_GETOPS_FUNC_BASE((*_citrus_mapper_getops_t));
typedef	int	(*_citrus_mapper_init_t)(
	struct _citrus_mapper_area *__restrict,
	struct _citrus_mapper *__restrict, const char *__restrict,
	const void *__restrict, size_t,
	struct _citrus_mapper_traits * __restrict, size_t);
typedef void	(*_citrus_mapper_uninit_t)(struct _citrus_mapper *);
typedef int	(*_citrus_mapper_convert_t)(struct _citrus_mapper * __restrict,
					    _citrus_index_t * __restrict,
					    _citrus_index_t,
					    void * __restrict);
typedef void	(*_citrus_mapper_init_state_t)(
	struct _citrus_mapper * __restrict, void * __restrict);

/*
 * ABI version change log
 *   0x00000001
 *     initial version
 */
#define _CITRUS_MAPPER_ABI_VERSION	0x00000001
struct _citrus_mapper_ops {
	uint32_t			mo_abi_version;
	/* version 0x00000001 */
	_citrus_mapper_init_t		mo_init;
	_citrus_mapper_uninit_t		mo_uninit;
	_citrus_mapper_convert_t	mo_convert;
	_citrus_mapper_init_state_t	mo_init_state;
};

struct _citrus_mapper_traits {
	/* version 0x00000001 */
	size_t				mt_state_size;
	size_t				mt_src_max;
	size_t				mt_dst_max;
};

struct _citrus_mapper {
	struct _citrus_mapper_ops		*cm_ops;
	void					*cm_closure;
	_citrus_module_t			cm_module;
	struct _citrus_mapper_traits		*cm_traits;
	_CITRUS_HASH_ENTRY(_citrus_mapper)	cm_entry;
	int					cm_refcount;
	char					*cm_key;
};
#endif