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/* $NetBSD: lua.h,v 1.8.48.1 2023/08/09 17:42:01 martin 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>
#include <sys/mutex.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_ */
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