LCOM1920-T02G10

/*        $NetBSD: lua.h,v 1.8 2015/09/06 06:01:02 dholland Exp $ */

/*

 * Copyright (c) 2014 by Lourival Vieira Neto <lneto@NetBSD.org>.

 * Copyright (c) 2011, 2013 Marc Balmer <mbalmer@NetBSD.org>.

 * 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.

 * 3. The name of the Author may not be used to endorse or promote products

 *    derived from this software without specific prior written permission.

 *

 * 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 REGENTS 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 _SYS_LUA_H_

#define _SYS_LUA_H_

#include <sys/param.h>

#include <sys/ioccom.h>

#include <lua.h>                /* for lua_State */

#ifdef _KERNEL

#include <sys/condvar.h>

#endif

#define MAX_LUA_NAME                16

#define MAX_LUA_DESC                64

#define LUA_MAX_MODNAME                32

struct lua_state_info {

        char        name[MAX_LUA_NAME];

        char        desc[MAX_LUA_DESC];

        bool        user;

};

struct lua_info {

        int num_states;                /* total number of created Lua states */

        struct lua_state_info *states;

};

struct lua_create {

        char        name[MAX_LUA_NAME];

        char        desc[MAX_LUA_DESC];

};

struct lua_require {

        char        state[MAX_LUA_NAME];

        char        module[LUA_MAX_MODNAME];

};

struct lua_load {

        char        state[MAX_LUA_NAME];

        char        path[MAXPATHLEN];

};

#define LUAINFO                _IOWR('l', 0, struct lua_info)

#define LUACREATE        _IOWR('l', 1, struct lua_create)

#define LUADESTROY        _IOWR('l', 2, struct lua_create)

/* 'require' a module in a state */

#define LUAREQUIRE        _IOWR('l', 3, struct lua_require)

/* loading Lua code into a Lua state */

#define LUALOAD                _IOWR('l', 4, struct lua_load)

#ifdef _KERNEL

extern int klua_mod_register(const char *, lua_CFunction);

extern int klua_mod_unregister(const char *);

typedef struct _klua_State {

        lua_State        *L;

        kmutex_t         ks_lock;

        bool                 ks_user;        /* state created by user (ioctl) */

} klua_State;

extern void klua_lock(klua_State *);

extern void klua_unlock(klua_State *);

extern void klua_close(klua_State *);

extern klua_State *klua_newstate(lua_Alloc, void *, const char *, const char *,

                int);

extern klua_State *kluaL_newstate(const char *, const char *, int);

#endif

#endif /* _SYS_LUA_H_ */