Source-Changes-D archive
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]
Re: CVS commit: src/sys/modules/lua
Two things attracted my eyes after a very quick look.
> +#define exit(EXIT_FAILURE) return
I can't believe this code in the tree! I thought we agreed that it will
be changed.
What's the point of compiling unmodified Lua sources if it forces you
to write ugly hacks? It's perfectly fine to insert few #ifndef _KERNEL
to the Lua source.
> +++ src/sys/modules/lua/infinite.lua Wed Oct 16 19:44:57 2013
> @@ -0,0 +1,2 @@
> +while (1) do end
Why do you need this file at all and why the code starts like C and ends
like Lua?
while true do end
no?
Alex
Marc Balmer wrote:
> Module Name: src
> Committed By: mbalmer
> Date: Wed Oct 16 19:44:58 UTC 2013
>
> Added Files:
> src/sys/modules/lua: Makefile assert.h ctype.h errno.h infinite.lua
> inttypes.h limits.h locale.h lua.c luaconf.h luavar.h math.h
> setjmp.h signal.h stdarg.h stddef.h stdio.h stdlib.h string.h
> test.lua
>
> Log Message:
> welcome lua(4), a devide driver that can create and control Lua states inside
> the kernel
>
>
> To generate a diff of this commit:
> cvs rdiff -u -r0 -r1.1 src/sys/modules/lua/Makefile \
> src/sys/modules/lua/assert.h src/sys/modules/lua/ctype.h \
> src/sys/modules/lua/errno.h src/sys/modules/lua/infinite.lua \
> src/sys/modules/lua/inttypes.h src/sys/modules/lua/limits.h \
> src/sys/modules/lua/locale.h src/sys/modules/lua/lua.c \
> src/sys/modules/lua/luaconf.h src/sys/modules/lua/luavar.h \
> src/sys/modules/lua/math.h src/sys/modules/lua/setjmp.h \
> src/sys/modules/lua/signal.h src/sys/modules/lua/stdarg.h \
> src/sys/modules/lua/stddef.h src/sys/modules/lua/stdio.h \
> src/sys/modules/lua/stdlib.h src/sys/modules/lua/string.h \
> src/sys/modules/lua/test.lua
>
> Please note that diffs are not public domain; they are subject to the
> copyright notices on the relevant files.
>
> Added files:
>
> Index: src/sys/modules/lua/Makefile
> diff -u /dev/null src/sys/modules/lua/Makefile:1.1
> --- /dev/null Wed Oct 16 19:44:58 2013
> +++ src/sys/modules/lua/Makefile Wed Oct 16 19:44:57 2013
> @@ -0,0 +1,48 @@
> +# $NetBSD: Makefile,v 1.1 2013/10/16 19:44:57 mbalmer Exp $
> +
> +.include "../Makefile.inc"
> +
> +.PATH: ${S}/../external/mit/lua/dist/src \
> + ${S}/../lib/libc/string
> +
> +KMOD= lua
> +SRCS= lua.c
> +
> +WARNS= 1
> +
> +# Lua source code
> +SRCS+= lapi.c \
> + lcode.c \
> + ldebug.c \
> + ldo.c \
> + ldump.c \
> + lfunc.c \
> + lgc.c \
> + llex.c \
> + lmem.c \
> + lobject.c \
> + lopcodes.c \
> + lparser.c \
> + lstate.c \
> + lstring.c \
> + ltable.c \
> + ltm.c \
> + lundump.c \
> + lvm.c \
> + lzio.c \
> + # lauxlib.c \
> + ltablib.c \
> + lstrlib.c \
> + lbaselib.c \
> + linit.c
> +
> +# Compatability code
> +SRCS+= strcspn.c \
> + strncat.c \
> + strpbrk.c \
> + strspn.c
> +
> +CPPFLAGS+= -include ${.CURDIR}/luaconf.h \
> + -I${S}/../external/mit/lua/dist/src
> +
> +.include <bsd.kmodule.mk>
> Index: src/sys/modules/lua/assert.h
> diff -u /dev/null src/sys/modules/lua/assert.h:1.1
> --- /dev/null Wed Oct 16 19:44:58 2013
> +++ src/sys/modules/lua/assert.h Wed Oct 16 19:44:57 2013
> @@ -0,0 +1,34 @@
> +/* $NetBSD */
> +
> +/*
> + * Copyright (c) 2011, Marc Balmer <mbalmer%NetBSD.org@localhost>.
> + * 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.
> + */
> +
> +/*
> + * This file is a placeholder only, to allow Lua to be compiled from
> + * unchanged sources.
> + */
> Index: src/sys/modules/lua/ctype.h
> diff -u /dev/null src/sys/modules/lua/ctype.h:1.1
> --- /dev/null Wed Oct 16 19:44:58 2013
> +++ src/sys/modules/lua/ctype.h Wed Oct 16 19:44:57 2013
> @@ -0,0 +1,66 @@
> +/* $NetBSD */
> +
> +/*
> + * Copyright (c) 2011, Lourival Neto <lneto%NetBSD.org@localhost>.
> + * 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.
> + */
> +
> +/*
> + * This file is a placeholder only, to allow Lua to be compiled from
> + * unchanged sources.
> + */
> +
> +#include <sys/systm.h>
> +
> +#ifndef _LUA_INCLUDE_CTYPE_
> +#define _LUA_INCLUDE_CTYPE_
> +
> +LIBKERN_INLINE int
> +isalnum(int ch)
> +{
> + return (isalpha(ch) || isdigit(ch));
> +}
> +
> +LIBKERN_INLINE int
> +iscntrl(int ch)
> +{
> + return ((ch >= 0x00 && ch <= 0x1F) || ch == 0x7F);
> +}
> +
> +LIBKERN_INLINE int
> +isprint(int ch)
> +{
> + return (ch >= 0x20 && ch <= 0x7E);
> +}
> +
> +LIBKERN_INLINE int
> +ispunct(int ch)
> +{
> + return (isprint(ch) && ch != ' ' && !isalnum(ch));
> +}
> +
> +#endif
> +
> Index: src/sys/modules/lua/errno.h
> diff -u /dev/null src/sys/modules/lua/errno.h:1.1
> --- /dev/null Wed Oct 16 19:44:58 2013
> +++ src/sys/modules/lua/errno.h Wed Oct 16 19:44:57 2013
> @@ -0,0 +1,8 @@
> +/* $NetBSD */
> +
> +/*
> + * This file is a placeholder only, to allow Lua to be compiled from
> + * unchanged sources.
> + */
> +
> +#include <sys/errno.h>
> Index: src/sys/modules/lua/infinite.lua
> diff -u /dev/null src/sys/modules/lua/infinite.lua:1.1
> --- /dev/null Wed Oct 16 19:44:58 2013
> +++ src/sys/modules/lua/infinite.lua Wed Oct 16 19:44:57 2013
> @@ -0,0 +1,2 @@
> +while (1) do end
> +
> Index: src/sys/modules/lua/inttypes.h
> diff -u /dev/null src/sys/modules/lua/inttypes.h:1.1
> --- /dev/null Wed Oct 16 19:44:58 2013
> +++ src/sys/modules/lua/inttypes.h Wed Oct 16 19:44:57 2013
> @@ -0,0 +1,6 @@
> +/* $NetBSD: inttypes.h,v 1.1 2013/10/16 19:44:57 mbalmer Exp $ */
> +
> +/*
> + * This file is a placeholder only, to allow Lua to be compiled from
> + * unchanged sources.
> + */
> Index: src/sys/modules/lua/limits.h
> diff -u /dev/null src/sys/modules/lua/limits.h:1.1
> --- /dev/null Wed Oct 16 19:44:58 2013
> +++ src/sys/modules/lua/limits.h Wed Oct 16 19:44:57 2013
> @@ -0,0 +1,8 @@
> +/* $NetBSD */
> +
> +/*
> + * This file is a placeholder only, to allow Lua to be compiled from
> + * unchanged sources.
> + */
> +
> +#include <machine/limits.h>
> Index: src/sys/modules/lua/locale.h
> diff -u /dev/null src/sys/modules/lua/locale.h:1.1
> --- /dev/null Wed Oct 16 19:44:58 2013
> +++ src/sys/modules/lua/locale.h Wed Oct 16 19:44:57 2013
> @@ -0,0 +1,47 @@
> +/* $NetBSD */
> +
> +/*
> + * Copyright (c) 2011, Lourival Neto <lneto%NetBSD.org@localhost>.
> + * 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.
> + */
> +
> +/*
> + * This file is a placeholder only, to allow Lua to be compiled from
> + * unchanged sources.
> + */
> +
> +#include <sys/null.h>
> +
> +#ifndef _LUA_INCLUDE_LOCALE_
> +#define _LUA_INCLUDE_LOCALE_
> +
> +struct lconv {
> + char *decimal_point;
> +};
> +
> +#define localeconv() NULL
> +#endif
> +
> Index: src/sys/modules/lua/lua.c
> diff -u /dev/null src/sys/modules/lua/lua.c:1.1
> --- /dev/null Wed Oct 16 19:44:58 2013
> +++ src/sys/modules/lua/lua.c Wed Oct 16 19:44:57 2013
> @@ -0,0 +1,862 @@
> +/* $NetBSD */
> +
> +/*
> + * Copyright (c) 2011 by Marc Balmer <mbalmer%NetBSD.org@localhost>.
> + * 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.
> + */
> +
> +/* Lua device driver */
> +
> +#include <sys/param.h>
> +#include <sys/fcntl.h>
> +#include <sys/conf.h>
> +#include <sys/condvar.h>
> +#include <sys/device.h>
> +#include <sys/ioctl.h>
> +#include <sys/lock.h>
> +#include <sys/lua.h>
> +#include <sys/malloc.h>
> +#include <sys/module.h>
> +#include <sys/mutex.h>
> +#include <sys/namei.h>
> +#include <sys/queue.h>
> +#include <sys/sysctl.h>
> +#include <sys/vnode.h>
> +
> +#include <lauxlib.h>
> +
> +#include "luavar.h"
> +
> +struct lua_softc {
> + device_t sc_dev;
> +
> + kmutex_t sc_lock;
> + kcondvar_t sc_inuse_cv;
> + bool sc_inuse;
> +
> + /* Locking access to state queues */
> + kmutex_t sc_state_lock;
> + kcondvar_t sc_state_cv;
> + bool sc_state;
> +
> + struct sysctllog *sc_log;
> +};
> +
> +static device_t sc_self;
> +static bool lua_autoload_on = true;
> +static bool lua_require_on = true;
> +static bool lua_bytecode_on = false;
> +static int lua_verbose;
> +static int lua_max_instr;
> +
> +static LIST_HEAD(, lua_state) lua_states;
> +static LIST_HEAD(, lua_module) lua_modules;
> +
> +static int lua_match(device_t, cfdata_t, void *);
> +static void lua_attach(device_t, device_t, void *);
> +static int lua_detach(device_t, int);
> +static klua_State *klua_find(const char *);
> +static const char *lua_reader(lua_State *, void *, size_t *);
> +static void lua_maxcount(lua_State *, lua_Debug *);
> +
> +static int lua_require(lua_State *);
> +
> +CFATTACH_DECL_NEW(lua, sizeof(struct lua_softc),
> + lua_match, lua_attach, lua_detach, NULL);
> +
> +dev_type_open(luaopen);
> +dev_type_close(luaclose);
> +dev_type_ioctl(luaioctl);
> +
> +const struct cdevsw lua_cdevsw = {
> + luaopen, luaclose, noread, nowrite, luaioctl, nostop, notty,
> + nopoll, nommap, nokqfilter, D_OTHER | D_MPSAFE
> +};
> +
> +struct lua_loadstate {
> + struct vnode *vp;
> + size_t size;
> + off_t off;
> +};
> +
> +extern struct cfdriver lua_cd;
> +
> +static int
> +lua_match(device_t parent, cfdata_t match, void *aux)
> +{
> + return 1;
> +}
> +
> +static void
> +lua_attach(device_t parent, device_t self, void *aux)
> +{
> + struct lua_softc *sc;
> + const struct sysctlnode *node;
> +
> + if (sc_self)
> + return;
> +
> + sc = device_private(self);
> + sc->sc_dev = self;
> + sc_self = self;
> +
> + mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_VM);
> + cv_init(&sc->sc_inuse_cv, "luactl");
> +
> + mutex_init(&sc->sc_state_lock, MUTEX_DEFAULT, IPL_VM);
> + cv_init(&sc->sc_state_cv, "luastate");
> +
> + pmf_device_register(self, NULL, NULL);
> +
> + /* Sysctl to provide some control over behaviour */
> + sysctl_createv(NULL, 0, NULL, NULL,
> + CTLFLAG_PERMANENT,
> + CTLTYPE_NODE, "kern", NULL,
> + NULL, 0, NULL, 0,
> + CTL_KERN, CTL_EOL);
> + sysctl_createv(&sc->sc_log, 0, NULL, &node,
> + CTLFLAG_OWNDESC,
> + CTLTYPE_NODE, "lua",
> + SYSCTL_DESCR("Lua options"),
> + NULL, 0, NULL, 0,
> + CTL_KERN, CTL_CREATE, CTL_EOL);
> +
> + if (node == NULL) {
> + printf(": can't create sysctl node\n");
> + return;
> + }
> +
> + /*
> + * XXX Some of the sysctl values must not be changed after the
> + * securelevel has been raised.
> + */
> + sysctl_createv(&sc->sc_log, 0, &node, NULL,
> + CTLFLAG_READWRITE | CTLFLAG_OWNDESC,
> + CTLTYPE_BOOL, "require",
> + SYSCTL_DESCR("Enable the require command"),
> + NULL, 0, &lua_require_on, 0,
> + CTL_CREATE, CTL_EOL);
> +
> + sysctl_createv(&sc->sc_log, 0, &node, NULL,
> + CTLFLAG_READWRITE | CTLFLAG_OWNDESC,
> + CTLTYPE_BOOL, "autoload",
> + SYSCTL_DESCR("Enable automatic load of modules"),
> + NULL, 0, &lua_autoload_on, 0,
> + CTL_CREATE, CTL_EOL);
> +
> + sysctl_createv(&sc->sc_log, 0, &node, NULL,
> + CTLFLAG_READWRITE | CTLFLAG_OWNDESC,
> + CTLTYPE_BOOL, "bytecode",
> + SYSCTL_DESCR("Enable loading of bytecode"),
> + NULL, 0, &lua_bytecode_on, 0,
> + CTL_CREATE, CTL_EOL);
> +
> + sysctl_createv(&sc->sc_log, 0, &node, NULL,
> + CTLFLAG_READWRITE | CTLFLAG_OWNDESC,
> + CTLTYPE_INT, "verbose",
> + SYSCTL_DESCR("Enable verbose output"),
> + NULL, 0, &lua_verbose, 0,
> + CTL_CREATE, CTL_EOL);
> +
> + sysctl_createv(&sc->sc_log, 0, &node, NULL,
> + CTLFLAG_READWRITE | CTLFLAG_OWNDESC,
> + CTLTYPE_INT, "maxcount",
> + SYSCTL_DESCR("Limit maximum instruction count"),
> + NULL, 0, &lua_max_instr, 0,
> + CTL_CREATE, CTL_EOL);
> +
> + aprint_normal_dev(self, "%s %s\n", LUA_RELEASE, LUA_COPYRIGHT);
> +}
> +
> +static int
> +lua_detach(device_t self, int flags)
> +{
> + struct lua_softc *sc;
> + struct lua_state *s;
> +
> + sc = device_private(self);
> + pmf_device_deregister(self);
> +
> + if (sc->sc_log != NULL) {
> + sysctl_teardown(&sc->sc_log);
> + sc->sc_log = NULL;
> + }
> +
> + /* Traverse the list of states and close them */
> + while ((s = LIST_FIRST(&lua_states)) != NULL) {
> + LIST_REMOVE(s, lua_next);
> + klua_close(s->K);
> + if (lua_verbose)
> + device_printf(self, "state %s destroyed\n",
> + s->lua_name);
> + free(s, NULL);
> + }
> + mutex_destroy(&sc->sc_lock);
> + cv_destroy(&sc->sc_inuse_cv);
> + mutex_destroy(&sc->sc_state_lock);
> + cv_destroy(&sc->sc_state_cv);
> + sc_self = NULL;
> + return 0;
> +}
> +
> +int
> +luaopen(dev_t dev, int flag, int mode, struct lwp *l)
> +{
> + struct lua_softc *sc;
> + int error;
> +
> + if (minor(dev) > 0)
> + return ENXIO;
> +
> + sc = device_lookup_private(&lua_cd, minor(dev));
> + if (sc == NULL)
> + return ENXIO;
> +
> + mutex_enter(&sc->sc_lock);
> + while (sc->sc_inuse == true) {
> + error = cv_wait_sig(&sc->sc_inuse_cv, &sc->sc_lock);
> + if (error)
> + break;
> + }
> + if (!error)
> + sc->sc_inuse = true;
> + mutex_exit(&sc->sc_lock);
> +
> + if (error)
> + return error;
> + return 0;
> +}
> +
> +int
> +luaclose(dev_t dev, int flag, int mode, struct lwp *l)
> +{
> + struct lua_softc *sc;
> +
> + if (minor(dev) > 0)
> + return ENXIO;
> + sc = device_lookup_private(&lua_cd, minor(dev));
> + mutex_enter(&sc->sc_lock);
> + sc->sc_inuse = false;
> + cv_signal(&sc->sc_inuse_cv);
> + mutex_exit(&sc->sc_lock);
> + return 0;
> +}
> +
> +int
> +luaioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l)
> +{
> + struct lua_softc *sc;
> + struct lua_info *info;
> + struct lua_create *create;
> + struct lua_require *require;
> + struct lua_load *load;
> + struct lua_state *s;
> + struct lua_module *m;
> + kauth_cred_t cred;
> + struct nameidata nd;
> + struct pathbuf *pb;
> + struct vattr va;
> + struct lua_loadstate ls;
> + int error, n;
> + klua_State *K;
> +
> + sc = device_lookup_private(&lua_cd, minor(dev));
> + if (!device_is_active(sc->sc_dev))
> + return EBUSY;
> +
> + switch (cmd) {
> + case LUAINFO:
> + info = data;
> + if (info->states == NULL) {
> + info->num_states = 0;
> + LIST_FOREACH(s, &lua_states, lua_next)
> + info->num_states++;
> + } else {
> + n = 0;
> + LIST_FOREACH(s, &lua_states, lua_next) {
> + if (n > info->num_states)
> + break;
> + copyoutstr(s->lua_name, info->states[n].name,
> + MAX_LUA_NAME, NULL);
> + copyoutstr(s->lua_desc, info->states[n].desc,
> + MAX_LUA_DESC, NULL);
> + info->states[n].user = s->K->ks_user;
> + n++;
> + }
> + info->num_states = n;
> + }
> + break;
> + case LUACREATE:
> + create = data;
> +
> + if (*create->name == '_') {
> + if (lua_verbose)
> + device_printf(sc->sc_dev, "names of user "
> + "created states must not begin with '_'");
> + return ENXIO;
> + }
> + LIST_FOREACH(s, &lua_states, lua_next)
> + if (!strcmp(s->lua_name, create->name)) {
> + if (lua_verbose)
> + device_printf(sc->sc_dev,
> + "state %s exists\n", create->name);
> + return EBUSY;
> + }
> +
> + K = klua_newstate(lua_alloc, NULL, create->name,
> + create->desc);
> + K->ks_user = true;
> +
> + if (K == NULL)
> + return ENOMEM;
> + if (lua_verbose)
> + device_printf(sc->sc_dev, "state %s created\n",
> + create->name);
> + break;
> + case LUADESTROY:
> + create = data;
> +
> + K = klua_find(create->name);
> +
> + if (K != NULL && (K->ks_user == true)) {
> + klua_close(K);
> + return 0;
> + }
> + return EBUSY;
> + case LUAREQUIRE: /* 'require' a module in a State */
> + require = data;
> + LIST_FOREACH(s, &lua_states, lua_next)
> + if (!strcmp(s->lua_name, require->state))
> + LIST_FOREACH(m, &lua_modules, mod_next)
> + if (!strcmp(m->mod_name,
> + require->module)) {
> + if (lua_verbose)
> + device_printf(
> + sc->sc_dev,
> + "requiring module "
> + "%s to state %s\n",
> + m->mod_name,
> + s->lua_name);
> + m->open(s->K->L);
> + m->refcount++;
> + LIST_INSERT_HEAD(
> + &s->lua_modules, m,
> + mod_next);
> + return 0;
> + }
> + return ENXIO;
> + case LUALOAD:
> + load = data;
> + if (strrchr(load->path, '/') == NULL)
> + return ENXIO;
> +
> + LIST_FOREACH(s, &lua_states, lua_next)
> + if (!strcmp(s->lua_name, load->state)) {
> + if (lua_verbose)
> + device_printf(sc->sc_dev,
> + "loading %s into state %s\n",
> + load->path, s->lua_name);
> + cred = kauth_cred_get();
> + pb = pathbuf_create(load->path);
> + if (pb == NULL)
> + return ENOMEM;
> + NDINIT(&nd, LOOKUP, FOLLOW | NOCHROOT, pb);
> + pathbuf_destroy(pb);
> + error = vn_open(&nd, FREAD, 0);
> + if (error) {
> + if (lua_verbose)
> + device_printf(sc->sc_dev,
> + "error vn_open %d\n",
> + error);
> + return error;
> + }
> + error = VOP_GETATTR(nd.ni_vp, &va,
> + kauth_cred_get());
> + if (error) {
> + VOP_UNLOCK(nd.ni_vp);
> + vn_close(nd.ni_vp, FREAD,
> + kauth_cred_get());
> + if (lua_verbose)
> + device_printf(sc->sc_dev,
> + "erro VOP_GETATTR %d\n",
> + error);
> + return error;
> + }
> + if (va.va_type != VREG) {
> + VOP_UNLOCK(nd.ni_vp);
> + vn_close(nd.ni_vp, FREAD,
> + kauth_cred_get());
> + return EINVAL;
> + }
> + ls.vp = nd.ni_vp;
> + ls.off = 0L;
> + ls.size = va.va_size;
> + VOP_UNLOCK(nd.ni_vp);
> + error = lua_load(s->K->L, lua_reader, &ls,
> + strrchr(load->path, '/') + 1);
> + vn_close(nd.ni_vp, FREAD, cred);
> + switch (error) {
> + case 0: /* no error */
> + break;
> + case LUA_ERRSYNTAX:
> + if (lua_verbose)
> + device_printf(sc->sc_dev,
> + "syntax error\n");
> + return EINVAL;
> + case LUA_ERRMEM:
> + if (lua_verbose)
> + device_printf(sc->sc_dev,
> + "memory error\n");
> + return ENOMEM;
> + default:
> + if (lua_verbose)
> + device_printf(sc->sc_dev,
> + "load error %d: %s\n",
> + error,
> + lua_tostring(s->K->L, -1));
> + return EINVAL;
> + }
> + if (lua_max_instr > 0)
> + lua_sethook(s->K->L, lua_maxcount,
> + LUA_MASKCOUNT, lua_max_instr);
> + error = lua_pcall(s->K->L, 0, LUA_MULTRET, 0);
> + if (error) {
> + if (lua_verbose) {
> + device_printf(sc->sc_dev,
> + "execution error: %s\n",
> + lua_tostring(s->K->L, -1));
> + }
> + return EINVAL;
> + }
> + return 0;
> + }
> + return ENXIO;
> + }
> + return 0;
> +}
> +
> +static int
> +lua_require(lua_State *L)
> +{
> + struct lua_state *s;
> + struct lua_module *m, *md;
> + const char *module;
> + char name[MAXPATHLEN];
> +
> + module = lua_tostring(L, -1);
> + md = NULL;
> + LIST_FOREACH(m, &lua_modules, mod_next)
> + if (!strcmp(m->mod_name, module)) {
> + md = m;
> + break;
> + }
> +
> + if (md == NULL && lua_autoload_on && strchr(module, '/') == NULL) {
> + snprintf(name, sizeof name, "lua%s", module);
> + if (lua_verbose)
> + device_printf(sc_self, "autoload %s\n", name);
> + module_autoload(name, MODULE_CLASS_LUA_BINDING);
> + LIST_FOREACH(m, &lua_modules, mod_next)
> + if (!strcmp(m->mod_name, module)) {
> + md = m;
> + break;
> + }
> + }
> +
> + if (md != NULL)
> + LIST_FOREACH(s, &lua_states, lua_next)
> + if (s->K->L == L) {
> + if (lua_verbose)
> + device_printf(sc_self,
> + "require module %s\n",
> + md->mod_name);
> + md->open(L);
> + md->refcount++;
> + LIST_INSERT_HEAD(&s->lua_modules, md, mod_next);
> + return 0;
> + }
> +
> + lua_pushstring(L, "module not found");
> + return lua_error(L);
> +}
> +
> +void *
> +lua_alloc(void *ud, void *ptr, size_t osize, size_t nsize)
> +{
> + if (nsize == 0) {
> + if (ptr != NULL)
> + free(ptr, NULL);
> + return NULL;
> + } else
> + return realloc(ptr, nsize, ud, 0);
> +}
> +
> +static const char *
> +lua_reader(lua_State *L, void *data, size_t *size)
> +{
> + struct lua_loadstate *ls;
> + static char buf[1024];
> + size_t rsiz;
> +
> + ls = data;
> + if (ls->size < sizeof(buf))
> + rsiz = ls->size;
> + else
> + rsiz = sizeof(buf);
> + vn_rdwr(UIO_READ, ls->vp, buf, rsiz, ls->off, UIO_SYSSPACE,
> + 0, curlwp->l_cred, NULL, curlwp);
> + if (ls->off == 0L && lua_bytecode_on == false && buf[0] == 0x1b) {
> + *size = 0L;
> + lua_pushstring(L, "loading of bytecode is not allowed");
> + lua_error(L);
> + return NULL;
> + } else {
> + *size = rsiz;
> + ls->off += *size;
> + ls->size -= *size;
> + }
> + return buf;
> +}
> +
> +static void
> +lua_maxcount(lua_State *L, lua_Debug *d)
> +{
> + lua_pushstring(L, "maximum instruction count exceeded");
> + lua_error(L);
> +}
> +
> +int
> +lua_mod_register(const char *name, int (*open)(void *))
> +{
> + struct lua_module *m;
> +
> + LIST_FOREACH(m, &lua_modules, mod_next)
> + if (!strcmp(m->mod_name, name))
> + return EBUSY;
> + m = malloc(sizeof(struct lua_module), NULL, M_ZERO);
> + if (m == NULL)
> + return ENOMEM;
> + strlcpy(m->mod_name, name, LUA_MAX_MODNAME);
> + m->open = open;
> + m->refcount = 0;
> + LIST_INSERT_HEAD(&lua_modules, m, mod_next);
> + if (lua_verbose)
> + device_printf(sc_self, "registered lua module %s\n", name);
> + return 0;
> +}
> +
> +int
> +lua_mod_unregister(const char *name)
> +{
> + struct lua_module *m;
> +
> + LIST_FOREACH(m, &lua_modules, mod_next)
> + if (!strcmp(m->mod_name, name)) {
> + if (m->refcount == 0) {
> + LIST_REMOVE(m, mod_next);
> + free(m, NULL);
> + if (lua_verbose)
> + device_printf(sc_self,
> + "unregistered lua module %s\n",
> + name);
> + return 0;
> + } else
> + return EBUSY;
> + }
> + return 0;
> +}
> +
> +klua_State *
> +klua_newstate(lua_Alloc f, void *ud, const char *name, const char *desc)
> +{
> + klua_State *K;
> + struct lua_state *s;
> + struct lua_softc *sc;
> + int error;
> +
> + s = malloc(sizeof(struct lua_state), NULL, M_ZERO);
> + if (s == NULL)
> + return NULL;
> +
> + sc = device_private(sc_self);
> + mutex_enter(&sc->sc_state_lock);
> + while (sc->sc_state == true) {
> + error = cv_wait_sig(&sc->sc_state_cv, &sc->sc_state_lock);
> + if (error)
> + break;
> + }
> + if (!error)
> + sc->sc_state = true;
> + mutex_exit(&sc->sc_state_lock);
> +
> + if (error)
> + return NULL;
> +
> + K = malloc(sizeof(klua_State), NULL, M_ZERO);
> + if (K == NULL)
> + goto finish;
> + K->L = lua_newstate(f, ud);
> + K->ks_user = false;
> + if (K->L == NULL) {
> + free(K, NULL);
> + K = NULL;
> + goto finish;
> + }
> +
> + strlcpy(s->lua_name, name, MAX_LUA_NAME);
> + strlcpy(s->lua_desc, desc, MAX_LUA_DESC);
> + s->K = K;
> +
> + if (lua_require_on || lua_autoload_on) {
> + lua_pushcfunction(K->L, lua_require);
> + lua_setglobal(K->L, "require");
> + }
> + LIST_INSERT_HEAD(&lua_states, s, lua_next);
> +
> + mutex_init(&K->ks_lock, MUTEX_DEFAULT, IPL_VM);
> + cv_init(&K->ks_inuse_cv, "luainuse");
> +
> +finish:
> + mutex_enter(&sc->sc_state_lock);
> + sc->sc_state = false;
> + cv_signal(&sc->sc_state_cv);
> + mutex_exit(&sc->sc_state_lock);
> + return K;
> +}
> +
> +void
> +klua_close(klua_State *K)
> +{
> + struct lua_state *s;
> + struct lua_softc *sc;
> + struct lua_module *m;
> + int error;
> +
> + /* Notify the Lua state that it is about to be closed */
> + if (klua_lock(K))
> + return; /* Nothing we can do about */
> +
> + lua_getglobal(K->L, "onClose");
> + if (lua_isfunction(K->L, -1))
> + lua_pcall(K->L, -1, 0, 0);
> +
> + /*
> + * Don't unlock, make sure no one uses the state until it is destroyed
> + * klua_unlock(K);
> + */
> +
> + sc = device_private(sc_self);
> + mutex_enter(&sc->sc_state_lock);
> + while (sc->sc_state == true) {
> + error = cv_wait_sig(&sc->sc_state_cv, &sc->sc_state_lock);
> + if (error)
> + break;
> + }
> + if (!error)
> + sc->sc_state = true;
> + mutex_exit(&sc->sc_state_lock);
> +
> + if (error)
> + return; /* Nothing we can do... */
> +
> + LIST_FOREACH(s, &lua_states, lua_next)
> + if (s->K == K) {
> + LIST_REMOVE(s, lua_next);
> + LIST_FOREACH(m, &s->lua_modules, mod_next)
> + m->refcount--;
> + free(s, NULL);
> + }
> +
> + lua_close(K->L);
> + cv_destroy(&K->ks_inuse_cv);
> + mutex_destroy(&K->ks_lock);
> + free(K, NULL);
> +
> + mutex_enter(&sc->sc_state_lock);
> + sc->sc_state = false;
> + cv_signal(&sc->sc_state_cv);
> + mutex_exit(&sc->sc_state_lock);
> +}
> +
> +static klua_State *
> +klua_find(const char *name)
> +{
> + struct lua_state *s;
> + struct lua_softc *sc;
> + klua_State *K;
> + int error;
> +
> + K = NULL;
> + sc = device_private(sc_self);
> + mutex_enter(&sc->sc_state_lock);
> + while (sc->sc_state == true) {
> + error = cv_wait_sig(&sc->sc_state_cv, &sc->sc_state_lock);
> + if (error)
> + break;
> + }
> + if (!error)
> + sc->sc_state = true;
> + mutex_exit(&sc->sc_state_lock);
> +
> + if (error)
> + return NULL;
> +
> + LIST_FOREACH(s, &lua_states, lua_next)
> + if (!strcmp(s->lua_name, name)) {
> + K = s->K;
> + break;
> + }
> +
> + mutex_enter(&sc->sc_state_lock);
> + sc->sc_state = false;
> + cv_signal(&sc->sc_state_cv);
> + mutex_exit(&sc->sc_state_lock);
> + return K;
> +}
> +
> +int
> +klua_lock(klua_State *K)
> +{
> + int error;
> +
> + error = 0;
> + mutex_enter(&K->ks_lock);
> + while (K->ks_inuse == true) {
> + error = cv_wait_sig(&K->ks_inuse_cv, &K->ks_lock);
> + if (error)
> + break;
> + }
> + if (!error)
> + K->ks_inuse = true;
> + mutex_exit(&K->ks_lock);
> +
> + if (error)
> + return error;
> + return 0;
> +}
> +
> +void
> +klua_unlock(klua_State *K)
> +{
> + mutex_enter(&K->ks_lock);
> + K->ks_inuse = false;
> + cv_signal(&K->ks_inuse_cv);
> + mutex_exit(&K->ks_lock);
> +}
> +
> +MODULE(MODULE_CLASS_MISC, lua, NULL);
> +
> +#ifdef _MODULE
> +static const struct cfiattrdata luabus_iattrdata = {
> + "luabus", 0, { { NULL, NULL, 0 },}
> +};
> +static const struct cfiattrdata *const lua_attrs[] = {
> + &luabus_iattrdata, NULL
> +};
> +CFDRIVER_DECL(lua, DV_DULL, lua_attrs);
> +extern struct cfattach lua_ca;
> +static int lualoc[] = {
> + -1,
> + -1,
> + -1
> +};
> +static struct cfdata lua_cfdata[] = {
> + {
> + .cf_name = "lua",
> + .cf_atname = "lua",
> + .cf_unit = 0,
> + .cf_fstate = FSTATE_STAR,
> + .cf_loc = lualoc,
> + .cf_flags = 0,
> + .cf_pspec = NULL,
> + },
> + { NULL, NULL, 0, FSTATE_NOTFOUND, NULL, 0, NULL }
> +};
> +#endif
> +
> +static int
> +lua_modcmd(modcmd_t cmd, void *opaque)
> +{
> +#ifdef _MODULE
> + devmajor_t cmajor, bmajor;
> + int error = 0;
> +
> + cmajor = bmajor = NODEVMAJOR;
> +#endif
> + switch (cmd) {
> + case MODULE_CMD_INIT:
> +#ifdef _MODULE
> + error = config_cfdriver_attach(&lua_cd);
> + if (error)
> + return error;
> +
> + error = config_cfattach_attach(lua_cd.cd_name,
> + &lua_ca);
> + if (error) {
> + config_cfdriver_detach(&lua_cd);
> + aprint_error("%s: unable to register cfattach\n",
> + lua_cd.cd_name);
> + return error;
> + }
> + error = config_cfdata_attach(lua_cfdata, 1);
> + if (error) {
> + config_cfattach_detach(lua_cd.cd_name,
> + &lua_ca);
> + config_cfdriver_detach(&lua_cd);
> + aprint_error("%s: unable to register cfdata\n",
> + lua_cd.cd_name);
> + return error;
> + }
> + error = devsw_attach(lua_cd.cd_name, NULL, &bmajor,
> + &lua_cdevsw, &cmajor);
> + if (error) {
> + aprint_error("%s: unable to register devsw\n",
> + lua_cd.cd_name);
> + config_cfattach_detach(lua_cd.cd_name, &lua_ca);
> + config_cfdriver_detach(&lua_cd);
> + return error;
> + }
> + config_attach_pseudo(lua_cfdata);
> +#endif
> + return 0;
> + case MODULE_CMD_FINI:
> +#ifdef _MODULE
> + error = config_cfdata_detach(lua_cfdata);
> + if (error)
> + return error;
> +
> + config_cfattach_detach(lua_cd.cd_name, &lua_ca);
> + config_cfdriver_detach(&lua_cd);
> + devsw_detach(NULL, &lua_cdevsw);
> +#endif
> + return 0;
> + case MODULE_CMD_AUTOUNLOAD:
> + /* no auto-unload */
> + return EBUSY;
> + default:
> + return ENOTTY;
> + }
> +}
> Index: src/sys/modules/lua/luaconf.h
> diff -u /dev/null src/sys/modules/lua/luaconf.h:1.1
> --- /dev/null Wed Oct 16 19:44:58 2013
> +++ src/sys/modules/lua/luaconf.h Wed Oct 16 19:44:57 2013
> @@ -0,0 +1,791 @@
> +/*
> +** $Id: luaconf.h,v 1.1 2013/10/16 19:44:57 mbalmer Exp $
> +** Configuration file for Lua
> +** See Copyright Notice in lua.h
> +*/
> +
> +
> +#ifndef lconfig_h
> +#define lconfig_h
> +
> +#include <limits.h>
> +#include <stddef.h>
> +
> +#ifndef LUA_CORE
> +#define LUA_CORE
> +#endif
> +
> +/*
> +** ==================================================================
> +** Search for "@@" to find all configurable definitions.
> +** ===================================================================
> +*/
> +
> +
> +/*
> +@@ lUA_ANSI controls the use of non-ansi features.
> +** CHANGE it (define it) if you want Lua to avoid the use of any
> +** non-ansi feature or library.
> +*/
> +#if defined(__STRICT_ANSI__)
> +#define LUA_ANSI
> +#endif
> +
> +
> +#if !defined(LUA_ANSI) && defined(_WIN32)
> +#define LUA_WIN
> +#endif
> +
> +#if defined(LUA_USE_LINUX)
> +#define LUA_USE_POSIX
> +#define LUA_USE_DLOPEN /* needs an extra library: -ldl */
> +#define LUA_USE_READLINE /* needs some extra libraries */
> +#endif
> +
> +#if defined(LUA_USE_MACOSX)
> +#define LUA_USE_POSIX
> +#define LUA_DL_DYLD /* does not need extra library */
> +#endif
> +
> +
> +
> +/*
> +@@ LUA_USE_POSIX includes all functionallity listed as X/Open System
> +@* Interfaces Extension (XSI).
> +** CHANGE it (define it) if your system is XSI compatible.
> +*/
> +#if defined(LUA_USE_POSIX)
> +#define LUA_USE_MKSTEMP
> +#define LUA_USE_ISATTY
> +#define LUA_USE_POPEN
> +#define LUA_USE_ULONGJMP
> +#endif
> +
> +
> +/*
> +@@ LUA_PATH and LUA_CPATH are the names of the environment variables that
> +@* Lua check to set its paths.
> +@@ LUA_INIT is the name of the environment variable that Lua
> +@* checks for initialization code.
> +** CHANGE them if you want different names.
> +*/
> +#define LUA_PATH "LUA_PATH"
> +#define LUA_CPATH "LUA_CPATH"
> +#define LUA_INIT "LUA_INIT"
> +
> +
> +/*
> +@@ LUA_PATH_DEFAULT is the default path that Lua uses to look for
> +@* Lua libraries.
> +@@ LUA_CPATH_DEFAULT is the default path that Lua uses to look for
> +@* C libraries.
> +** CHANGE them if your machine has a non-conventional directory
> +** hierarchy or if you want to install your libraries in
> +** non-conventional directories.
> +*/
> +#if defined(_WIN32)
> +/*
> +** In Windows, any exclamation mark ('!') in the path is replaced by the
> +** path of the directory of the executable file of the current process.
> +*/
> +#define LUA_LDIR "!\\lua\\"
> +#define LUA_CDIR "!\\"
> +#define LUA_PATH_DEFAULT \
> + ".\\?.lua;" LUA_LDIR"?.lua;" LUA_LDIR"?\\init.lua;" \
> + LUA_CDIR"?.lua;" LUA_CDIR"?\\init.lua"
> +#define LUA_CPATH_DEFAULT \
> + ".\\?.dll;" LUA_CDIR"?.dll;" LUA_CDIR"loadall.dll"
> +
> +#else
> +#define LUA_ROOT "/usr/local/"
> +#define LUA_LDIR LUA_ROOT "share/lua/5.1/"
> +#define LUA_CDIR LUA_ROOT "lib/lua/5.1/"
> +#define LUA_PATH_DEFAULT \
> + "./?.lua;" LUA_LDIR"?.lua;" LUA_LDIR"?/init.lua;" \
> + LUA_CDIR"?.lua;" LUA_CDIR"?/init.lua"
> +#define LUA_CPATH_DEFAULT \
> + "./?.so;" LUA_CDIR"?.so;" LUA_CDIR"loadall.so"
> +#endif
> +
> +
> +/*
> +@@ LUA_DIRSEP is the directory separator (for submodules).
> +** CHANGE it if your machine does not use "/" as the directory separator
> +** and is not Windows. (On Windows Lua automatically uses "\".)
> +*/
> +#if defined(_WIN32)
> +#define LUA_DIRSEP "\\"
> +#else
> +#define LUA_DIRSEP "/"
> +#endif
> +
> +
> +/*
> +@@ LUA_PATHSEP is the character that separates templates in a path.
> +@@ LUA_PATH_MARK is the string that marks the substitution points in a
> +@* template.
> +@@ LUA_EXECDIR in a Windows path is replaced by the executable's
> +@* directory.
> +@@ LUA_IGMARK is a mark to ignore all before it when bulding the
> +@* luaopen_ function name.
> +** CHANGE them if for some reason your system cannot use those
> +** characters. (E.g., if one of those characters is a common character
> +** in file/directory names.) Probably you do not need to change them.
> +*/
> +#define LUA_PATHSEP ";"
> +#define LUA_PATH_MARK "?"
> +#define LUA_EXECDIR "!"
> +#define LUA_IGMARK "-"
> +
> +
> +/*
> +@@ LUA_INTEGER is the integral type used by lua_pushinteger/lua_tointeger.
> +** CHANGE that if ptrdiff_t is not adequate on your machine. (On most
> +** machines, ptrdiff_t gives a good choice between int or long.)
> +*/
> +#define LUA_INTEGER ptrdiff_t
> +
> +
> +/*
> +@@ LUA_API is a mark for all core API functions.
> +@@ LUALIB_API is a mark for all standard library functions.
> +** CHANGE them if you need to define those functions in some special way.
> +** For instance, if you want to create one Windows DLL with the core and
> +** the libraries, you may want to use the following definition (define
> +** LUA_BUILD_AS_DLL to get it).
> +*/
> +#if defined(LUA_BUILD_AS_DLL)
> +
> +#if defined(LUA_CORE) || defined(LUA_LIB)
> +#define LUA_API __declspec(dllexport)
> +#else
> +#define LUA_API __declspec(dllimport)
> +#endif
> +
> +#else
> +
> +#define LUA_API extern
> +
> +#endif
> +
> +/* more often than not the libs go together with the core */
> +#define LUALIB_API LUA_API
> +
> +
> +/*
> +@@ LUAI_FUNC is a mark for all extern functions that are not to be
> +@* exported to outside modules.
> +@@ LUAI_DATA is a mark for all extern (const) variables that are not to
> +@* be exported to outside modules.
> +** CHANGE them if you need to mark them in some special way. Elf/gcc
> +** (versions 3.2 and later) mark them as "hidden" to optimize access
> +** when Lua is compiled as a shared library.
> +*/
> +#if defined(luaall_c)
> +#define LUAI_FUNC static
> +#define LUAI_DATA /* empty */
> +
> +#elif defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \
> + defined(__ELF__)
> +#define LUAI_FUNC __attribute__((visibility("hidden"))) extern
> +#define LUAI_DATA LUAI_FUNC
> +
> +#else
> +#define LUAI_FUNC extern
> +#define LUAI_DATA extern
> +#endif
> +
> +
> +
> +/*
> +@@ LUA_QL describes how error messages quote program elements.
> +** CHANGE it if you want a different appearance.
> +*/
> +#define LUA_QL(x) "'" x "'"
> +#define LUA_QS LUA_QL("%s")
> +
> +
> +/*
> +@@ LUA_IDSIZE gives the maximum size for the description of the source
> +@* of a function in debug information.
> +** CHANGE it if you want a different size.
> +*/
> +#define LUA_IDSIZE 60
> +
> +
> +/*
> +** {==================================================================
> +** Stand-alone configuration
> +** ===================================================================
> +*/
> +
> +#if defined(lua_c) || defined(luaall_c)
> +
> +/*
> +@@ lua_stdin_is_tty detects whether the standard input is a 'tty' (that
> +@* is, whether we're running lua interactively).
> +** CHANGE it if you have a better definition for non-POSIX/non-Windows
> +** systems.
> +*/
> +#if defined(LUA_USE_ISATTY)
> +#include <unistd.h>
> +#define lua_stdin_is_tty() isatty(0)
> +#elif defined(LUA_WIN)
> +#include <io.h>
> +#include <stdio.h>
> +#define lua_stdin_is_tty() _isatty(_fileno(stdin))
> +#else
> +#define lua_stdin_is_tty() 1 /* assume stdin is a tty */
> +#endif
> +
> +
> +/*
> +@@ LUA_PROMPT is the default prompt used by stand-alone Lua.
> +@@ LUA_PROMPT2 is the default continuation prompt used by stand-alone Lua.
> +** CHANGE them if you want different prompts. (You can also change the
> +** prompts dynamically, assigning to globals _PROMPT/_PROMPT2.)
> +*/
> +#define LUA_PROMPT "> "
> +#define LUA_PROMPT2 ">> "
> +
> +
> +/*
> +@@ LUA_PROGNAME is the default name for the stand-alone Lua program.
> +** CHANGE it if your stand-alone interpreter has a different name and
> +** your system is not able to detect that name automatically.
> +*/
> +#define LUA_PROGNAME "lua"
> +
> +
> +/*
> +@@ LUA_MAXINPUT is the maximum length for an input line in the
> +@* stand-alone interpreter.
> +** CHANGE it if you need longer lines.
> +*/
> +#define LUA_MAXINPUT 512
> +
> +
> +/*
> +@@ lua_readline defines how to show a prompt and then read a line from
> +@* the standard input.
> +@@ lua_saveline defines how to "save" a read line in a "history".
> +@@ lua_freeline defines how to free a line read by lua_readline.
> +** CHANGE them if you want to improve this functionality (e.g., by using
> +** GNU readline and history facilities).
> +*/
> +#if defined(LUA_USE_READLINE)
> +#include <stdio.h>
> +#include <readline/readline.h>
> +#include <readline/history.h>
> +#define lua_readline(L,b,p) ((void)L, ((b)=readline(p)) != NULL)
> +#define lua_saveline(L,idx) \
> + if (lua_strlen(L,idx) > 0) /* non-empty line? */ \
> + add_history(lua_tostring(L, idx)); /* add it to history */
> +#define lua_freeline(L,b) ((void)L, free(b))
> +#else
> +#define lua_readline(L,b,p) \
> + ((void)L, fputs(p, stdout), fflush(stdout), /* show prompt */ \
> + fgets(b, LUA_MAXINPUT, stdin) != NULL) /* get line */
> +#define lua_saveline(L,idx) { (void)L; (void)idx; }
> +#define lua_freeline(L,b) { (void)L; (void)b; }
> +#endif
> +
> +#endif
> +
> +/* }================================================================== */
> +
> +
> +/*
> +@@ LUAI_GCPAUSE defines the default pause between garbage-collector cycles
> +@* as a percentage.
> +** CHANGE it if you want the GC to run faster or slower (higher values
> +** mean larger pauses which mean slower collection.) You can also change
> +** this value dynamically.
> +*/
> +#define LUAI_GCPAUSE 200 /* 200% (wait memory to double before next GC) */
> +
> +
> +/*
> +@@ LUAI_GCMUL defines the default speed of garbage collection relative to
> +@* memory allocation as a percentage.
> +** CHANGE it if you want to change the granularity of the garbage
> +** collection. (Higher values mean coarser collections. 0 represents
> +** infinity, where each step performs a full collection.) You can also
> +** change this value dynamically.
> +*/
> +#define LUAI_GCMUL 200 /* GC runs 'twice the speed' of memory allocation */
> +
> +
> +
> +/*
> +@@ LUA_COMPAT_GETN controls compatibility with old getn behavior.
> +** CHANGE it (define it) if you want exact compatibility with the
> +** behavior of setn/getn in Lua 5.0.
> +*/
> +#undef LUA_COMPAT_GETN
> +
> +/*
> +@@ LUA_COMPAT_LOADLIB controls compatibility about global loadlib.
> +** CHANGE it to undefined as soon as you do not need a global 'loadlib'
> +** function (the function is still available as 'package.loadlib').
> +*/
> +#undef LUA_COMPAT_LOADLIB
> +
> +/*
> +@@ LUA_COMPAT_VARARG controls compatibility with old vararg feature.
> +** CHANGE it to undefined as soon as your programs use only '...' to
> +** access vararg parameters (instead of the old 'arg' table).
> +*/
> +#define LUA_COMPAT_VARARG
> +
> +/*
> +@@ LUA_COMPAT_MOD controls compatibility with old math.mod function.
> +** CHANGE it to undefined as soon as your programs use 'math.fmod' or
> +** the new '%' operator instead of 'math.mod'.
> +*/
> +#define LUA_COMPAT_MOD
> +
> +/*
> +@@ LUA_COMPAT_LSTR controls compatibility with old long string nesting
> +@* facility.
> +** CHANGE it to 2 if you want the old behaviour, or undefine it to turn
> +** off the advisory error when nesting [[...]].
> +*/
> +#define LUA_COMPAT_LSTR 1
> +
> +/*
> +@@ LUA_COMPAT_GFIND controls compatibility with old 'string.gfind' name.
> +** CHANGE it to undefined as soon as you rename 'string.gfind' to
> +** 'string.gmatch'.
> +*/
> +#define LUA_COMPAT_GFIND
> +
> +/*
> +@@ LUA_COMPAT_OPENLIB controls compatibility with old 'luaL_openlib'
> +@* behavior.
> +** CHANGE it to undefined as soon as you replace to 'luaL_register'
> +** your uses of 'luaL_openlib'
> +*/
> +#define LUA_COMPAT_OPENLIB
> +
> +
> +
> +/*
> +@@ luai_apicheck is the assert macro used by the Lua-C API.
> +** CHANGE luai_apicheck if you want Lua to perform some checks in the
> +** parameters it gets from API calls. This may slow down the interpreter
> +** a bit, but may be quite useful when debugging C code that interfaces
> +** with Lua. A useful redefinition is to use assert.h.
> +*/
> +#if defined(LUA_USE_APICHECK)
> +#include <assert.h>
> +#define luai_apicheck(L,o) { (void)L; assert(o); }
> +#else
> +#define luai_apicheck(L,o) { (void)L; }
> +#endif
> +
> +
> +/*
> +@@ LUAI_BITSINT defines the number of bits in an int.
> +** CHANGE here if Lua cannot automatically detect the number of bits of
> +** your machine. Probably you do not need to change this.
> +*/
> +/* avoid overflows in comparison */
> +#if INT_MAX-20 < 32760
> +#define LUAI_BITSINT 16
> +#elif INT_MAX > 2147483640L
> +/* int has at least 32 bits */
> +#define LUAI_BITSINT 32
> +#else
> +#error "you must define LUA_BITSINT with number of bits in an integer"
> +#endif
> +
> +
> +/*
> +@@ LUAI_UINT32 is an unsigned integer with at least 32 bits.
> +@@ LUAI_INT32 is an signed integer with at least 32 bits.
> +@@ LUAI_UMEM is an unsigned integer big enough to count the total
> +@* memory used by Lua.
> +@@ LUAI_MEM is a signed integer big enough to count the total memory
> +@* used by Lua.
> +** CHANGE here if for some weird reason the default definitions are not
> +** good enough for your machine. (The definitions in the 'else'
> +** part always works, but may waste space on machines with 64-bit
> +** longs.) Probably you do not need to change this.
> +*/
> +#if LUAI_BITSINT >= 32
> +#define LUAI_UINT32 unsigned int
> +#define LUAI_INT32 int
> +#define LUAI_MAXINT32 INT_MAX
> +#define LUAI_UMEM size_t
> +#define LUAI_MEM ptrdiff_t
> +#else
> +/* 16-bit ints */
> +#define LUAI_UINT32 unsigned long
> +#define LUAI_INT32 long
> +#define LUAI_MAXINT32 LONG_MAX
> +#define LUAI_UMEM unsigned long
> +#define LUAI_MEM long
> +#endif
> +
> +
> +/*
> +@@ LUAI_MAXCALLS limits the number of nested calls.
> +** CHANGE it if you need really deep recursive calls. This limit is
> +** arbitrary; its only purpose is to stop infinite recursion before
> +** exhausting memory.
> +*/
> +#define LUAI_MAXCALLS 20000
> +
> +
> +/*
> +@@ LUAI_MAXCSTACK limits the number of Lua stack slots that a C function
> +@* can use.
> +** CHANGE it if you need lots of (Lua) stack space for your C
> +** functions. This limit is arbitrary; its only purpose is to stop C
> +** functions to consume unlimited stack space. (must be smaller than
> +** -LUA_REGISTRYINDEX)
> +*/
> +#define LUAI_MAXCSTACK 8000
> +
> +
> +
> +/*
> +** {==================================================================
> +** CHANGE (to smaller values) the following definitions if your system
> +** has a small C stack. (Or you may want to change them to larger
> +** values if your system has a large C stack and these limits are
> +** too rigid for you.) Some of these constants control the size of
> +** stack-allocated arrays used by the compiler or the interpreter, while
> +** others limit the maximum number of recursive calls that the compiler
> +** or the interpreter can perform. Values too large may cause a C stack
> +** overflow for some forms of deep constructs.
> +** ===================================================================
> +*/
> +
> +
> +/*
> +@@ LUAI_MAXCCALLS is the maximum depth for nested C calls (short) and
> +@* syntactical nested non-terminals in a program.
> +*/
> +#define LUAI_MAXCCALLS 200
> +
> +
> +/*
> +@@ LUAI_MAXVARS is the maximum number of local variables per function
> +@* (must be smaller than 250).
> +*/
> +#define LUAI_MAXVARS 200
> +
> +
> +/*
> +@@ LUAI_MAXUPVALUES is the maximum number of upvalues per function
> +@* (must be smaller than 250).
> +*/
> +#define LUAI_MAXUPVALUES 60
> +
> +
> +/*
> +@@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system.
> +*/
> +#define LUAL_BUFFERSIZE BUFSIZ
> +
> +/* }================================================================== */
> +
> +
> +
> +
> +/*
> +** {==================================================================
> +@@ LUA_NUMBER is the type of numbers in Lua.
> +** CHANGE the following definitions only if you want to build Lua
> +** with a number type different from double. You may also need to
> +** change lua_number2int & lua_number2integer.
> +** ===================================================================
> +*/
> +
> +#ifdef _KERNEL
> +#define LUA_NUMBER long long
> +
> +#else
> +#define LUA_NUMBER_DOUBLE
> +#define LUA_NUMBER double
> +#endif
> +
> +/*
> +@@ LUAI_UACNUMBER is the result of an 'usual argument conversion'
> +@* over a number.
> +*/
> +
> +#define LUAI_UACNUMBER LUA_NUMBER
> +
> +/*
> +@@ LUA_NUMBER_SCAN is the format for reading numbers.
> +@@ LUA_NUMBER_FMT is the format for writing numbers.
> +@@ lua_number2str converts a number to a string.
> +@@ LUAI_MAXNUMBER2STR is maximum size of previous conversion.
> +@@ lua_str2number converts a string to a number.
> +*/
> +
> +#ifdef _KERNEL
> +#define LUA_NUMBER_SCAN "%lld"
> +#define LUA_NUMBER_FMT "%lld"
> +#define lua_str2number(s,p) strtoll((s), (p), 10)
> +#else
> +#define LUA_NUMBER_SCAN "%lf"
> +#define LUA_NUMBER_FMT "%.14g"
> +#define lua_str2number(s,p) strtod((s), (p))
> +#endif
> +
> +#define lua_number2str(s,n) sprintf((s), LUA_NUMBER_FMT, (n))
> +#define LUAI_MAXNUMBER2STR 32 /* 16 digits, sign, point, and \0 */
> +
> +/*
> +@@ The luai_num* macros define the primitive operations over numbers.
> +*/
> +#if defined(LUA_CORE)
> +#ifdef _KERNEL
> +#define luai_nummod(a,b) ((a)%(b))
> +#define luai_numpow(a,b) luai_nummul(a,b)
> +#else
> +#include <math.h>
> +#define luai_nummod(a,b) ((a) - floor((a)/(b))*(b))
> +#define luai_numpow(a,b) (pow(a,b))
> +#endif
> +
> +#define luai_numadd(a,b) ((a)+(b))
> +#define luai_numsub(a,b) ((a)-(b))
> +#define luai_nummul(a,b) ((a)*(b))
> +#define luai_numdiv(a,b) ((a)/(b))
> +#define luai_numunm(a) (-(a))
> +#define luai_numeq(a,b) ((a)==(b))
> +#define luai_numlt(a,b) ((a)<(b))
> +#define luai_numle(a,b) ((a)<=(b))
> +#define luai_numisnan(a) (!luai_numeq((a), (a)))
> +#endif
> +
> +
> +/*
> +@@ lua_number2int is a macro to convert lua_Number to int.
> +@@ lua_number2integer is a macro to convert lua_Number to lua_Integer.
> +** CHANGE them if you know a faster way to convert a lua_Number to
> +** int (with any rounding method and without throwing errors) in your
> +** system. In Pentium machines, a naive typecast from double to int
> +** in C is extremely slow, so any alternative is worth trying.
> +*/
> +
> +/* On a Pentium, resort to a trick */
> +#if defined(LUA_NUMBER_DOUBLE) && !defined(LUA_ANSI) && !defined(__SSE2__)
> && \
> + (defined(__i386) || defined (_M_IX86) || defined(__i386__))
> +
> +/* On a Microsoft compiler, use assembler */
> +#if defined(_MSC_VER)
> +
> +#define lua_number2int(i,d) __asm fld d __asm fistp i
> +#define lua_number2integer(i,n) lua_number2int(i, n)
> +
> +/* the next trick should work on any Pentium, but sometimes clashes
> + with a DirectX idiosyncrasy */
> +#else
> +
> +union luai_Cast { double l_d; long l_l; };
> +#define lua_number2int(i,d) \
> + { volatile union luai_Cast u; u.l_d = (d) + 6755399441055744.0; (i) =
> u.l_l; }
> +#define lua_number2integer(i,n) lua_number2int(i, n)
> +
> +#endif
> +
> +
> +/* this option always works, but may be slow */
> +#else
> +#define lua_number2int(i,d) ((i)=(int)(d))
> +#define lua_number2integer(i,d) ((i)=(lua_Integer)(d))
> +
> +#endif
> +
> +/* }================================================================== */
> +
> +
> +/*
> +@@ LUAI_USER_ALIGNMENT_T is a type that requires maximum alignment.
> +** CHANGE it if your system requires alignments larger than double. (For
> +** instance, if your system supports long doubles and they must be
> +** aligned in 16-byte boundaries, then you should add long double in the
> +** union.) Probably you do not need to change this.
> +*/
> +#define LUAI_USER_ALIGNMENT_T union { double u; void *s; long l; }
> +
> +
> +/*
> +@@ LUAI_THROW/LUAI_TRY define how Lua does exception handling.
> +** CHANGE them if you prefer to use longjmp/setjmp even with C++
> +** or if want/don't to use _longjmp/_setjmp instead of regular
> +** longjmp/setjmp. By default, Lua handles errors with exceptions when
> +** compiling as C++ code, with _longjmp/_setjmp when asked to use them,
> +** and with longjmp/setjmp otherwise.
> +*/
> +#ifdef _KERNEL
> +/* in NetBSD kernel */
> +#define LUAI_THROW(L,c) longjmp(& ((c)->b))
> +#define LUAI_TRY(L,c,a) if (setjmp(& ((c)->b)) == 0) { a }
> +//#define LUAI_TRY(L,c,a) setjmp(& ((c)->b))
> +#define luai_jmpbuf label_t
> +
> +#elif defined(__cplusplus)
> +/* C++ exceptions */
> +#define LUAI_THROW(L,c) throw(c)
> +#define LUAI_TRY(L,c,a) try { a } catch(...) \
> + { if ((c)->status == 0) (c)->status = -1; }
> +#define luai_jmpbuf int /* dummy variable */
> +
> +#elif defined(LUA_USE_ULONGJMP)
> +/* in Unix, try _longjmp/_setjmp (more efficient) */
> +#define LUAI_THROW(L,c) _longjmp((c)->b, 1)
> +#define LUAI_TRY(L,c,a) if (_setjmp((c)->b) == 0) { a }
> +#define luai_jmpbuf jmp_buf
> +
> +#else
> +/* default handling with long jumps */
> +#define LUAI_THROW(L,c) longjmp((c)->b, 1)
> +#define LUAI_TRY(L,c,a) if (setjmp((c)->b) == 0) { a }
> +#define luai_jmpbuf jmp_buf
> +
> +#endif
> +
> +
> +/*
> +@@ LUA_MAXCAPTURES is the maximum number of captures that a pattern
> +@* can do during pattern-matching.
> +** CHANGE it if you need more captures. This limit is arbitrary.
> +*/
> +#define LUA_MAXCAPTURES 32
> +
> +
> +/*
> +@@ lua_tmpnam is the function that the OS library uses to create a
> +@* temporary name.
> +@@ LUA_TMPNAMBUFSIZE is the maximum size of a name created by lua_tmpnam.
> +** CHANGE them if you have an alternative to tmpnam (which is considered
> +** insecure) or if you want the original tmpnam anyway. By default, Lua
> +** uses tmpnam except when POSIX is available, where it uses mkstemp.
> +*/
> +#if defined(loslib_c) || defined(luaall_c)
> +
> +#if defined(LUA_USE_MKSTEMP)
> +#include <unistd.h>
> +#define LUA_TMPNAMBUFSIZE 32
> +#define lua_tmpnam(b,e) { \
> + strcpy(b, "/tmp/lua_XXXXXX"); \
> + e = mkstemp(b); \
> + if (e != -1) close(e); \
> + e = (e == -1); }
> +
> +#else
> +#define LUA_TMPNAMBUFSIZE L_tmpnam
> +#define lua_tmpnam(b,e) { e = (tmpnam(b) == NULL); }
> +#endif
> +
> +#endif
> +
> +
> +/*
> +@@ lua_popen spawns a new process connected to the current one through
> +@* the file streams.
> +** CHANGE it if you have a way to implement it in your system.
> +*/
> +#if defined(LUA_USE_POPEN)
> +
> +#define lua_popen(L,c,m) ((void)L, fflush(NULL), popen(c,m))
> +#define lua_pclose(L,file) ((void)L, (pclose(file) != -1))
> +
> +#elif defined(LUA_WIN)
> +
> +#define lua_popen(L,c,m) ((void)L, _popen(c,m))
> +#define lua_pclose(L,file) ((void)L, (_pclose(file) != -1))
> +
> +#else
> +
> +#define lua_popen(L,c,m) ((void)((void)c, m), \
> + luaL_error(L, LUA_QL("popen") " not supported"), (FILE*)0)
> +#define lua_pclose(L,file) ((void)((void)L, file), 0)
> +
> +#endif
> +
> +/*
> +@@ LUA_DL_* define which dynamic-library system Lua should use.
> +** CHANGE here if Lua has problems choosing the appropriate
> +** dynamic-library system for your platform (either Windows' DLL, Mac's
> +** dyld, or Unix's dlopen). If your system is some kind of Unix, there
> +** is a good chance that it has dlopen, so LUA_DL_DLOPEN will work for
> +** it. To use dlopen you also need to adapt the src/Makefile (probably
> +** adding -ldl to the linker options), so Lua does not select it
> +** automatically. (When you change the makefile to add -ldl, you must
> +** also add -DLUA_USE_DLOPEN.)
> +** If you do not want any kind of dynamic library, undefine all these
> +** options.
> +** By default, _WIN32 gets LUA_DL_DLL and MAC OS X gets LUA_DL_DYLD.
> +*/
> +#if defined(LUA_USE_DLOPEN)
> +#define LUA_DL_DLOPEN
> +#endif
> +
> +#if defined(LUA_WIN)
> +#define LUA_DL_DLL
> +#endif
> +
> +
> +/*
> +@@ LUAI_EXTRASPACE allows you to add user-specific data in a lua_State
> +@* (the data goes just *before* the lua_State pointer).
> +** CHANGE (define) this if you really need that. This value must be
> +** a multiple of the maximum alignment required for your machine.
> +*/
> +#define LUAI_EXTRASPACE 0
> +
> +
> +/*
> +@@ luai_userstate* allow user-specific actions on threads.
> +** CHANGE them if you defined LUAI_EXTRASPACE and need to do something
> +** extra when a thread is created/deleted/resumed/yielded.
> +*/
> +#define luai_userstateopen(L) ((void)L)
> +#define luai_userstateclose(L) ((void)L)
> +#define luai_userstatethread(L,L1) ((void)L)
> +#define luai_userstatefree(L) ((void)L)
> +#define luai_userstateresume(L,n) ((void)L)
> +#define luai_userstateyield(L,n) ((void)L)
> +
> +
> +/*
> +@@ LUA_INTFRMLEN is the length modifier for integer conversions
> +@* in 'string.format'.
> +@@ LUA_INTFRM_T is the integer type correspoding to the previous length
> +@* modifier.
> +** CHANGE them if your system supports long long or does not support long.
> +*/
> +
> +#if defined(LUA_USELONGLONG)
> +
> +#define LUA_INTFRMLEN "ll"
> +#define LUA_INTFRM_T long long
> +
> +#else
> +
> +#define LUA_INTFRMLEN "l"
> +#define LUA_INTFRM_T long
> +
> +#endif
> +
> +
> +
> +/* =================================================================== */
> +
> +/*
> +** Local configuration. You can use this space to add your redefinitions
> +** without modifying the main part of the file.
> +*/
> +
> +
> +
> +#endif
> +#undef LUA_CORE
> Index: src/sys/modules/lua/luavar.h
> diff -u /dev/null src/sys/modules/lua/luavar.h:1.1
> --- /dev/null Wed Oct 16 19:44:58 2013
> +++ src/sys/modules/lua/luavar.h Wed Oct 16 19:44:57 2013
> @@ -0,0 +1,49 @@
> +/* $NetBSD: luavar.h,v 1.1 2013/10/16 19:44:57 mbalmer Exp $ */
> +
> +/*
> + * Copyright (c) 2011, Marc Balmer <mbalmer%NetBSD.org@localhost>.
> + * 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 _LUA_VAR_
> +#define _LUA_VAR_
> +
> +struct lua_module {
> + char mod_name[LUA_MAX_MODNAME];
> + int (*open)(void *);
> + int refcount;
> + LIST_ENTRY(lua_module) mod_next;
> +};
> +
> +struct lua_state {
> + char lua_name[MAX_LUA_NAME];
> + char lua_desc[MAX_LUA_DESC];
> + klua_State *K;
> + LIST_HEAD(, lua_module) lua_modules;
> + LIST_ENTRY(lua_state) lua_next;
> +};
> +
> +#endif /* _LUA_VAR_ */
> Index: src/sys/modules/lua/math.h
> diff -u /dev/null src/sys/modules/lua/math.h:1.1
> --- /dev/null Wed Oct 16 19:44:58 2013
> +++ src/sys/modules/lua/math.h Wed Oct 16 19:44:57 2013
> @@ -0,0 +1,6 @@
> +/* $NetBSD */
> +
> +/*
> + * This file is a placeholder only, to allow Lua to be compiled from
> + * unchanged sources.
> + */
> Index: src/sys/modules/lua/setjmp.h
> diff -u /dev/null src/sys/modules/lua/setjmp.h:1.1
> --- /dev/null Wed Oct 16 19:44:58 2013
> +++ src/sys/modules/lua/setjmp.h Wed Oct 16 19:44:57 2013
> @@ -0,0 +1,10 @@
> +/* $NetBSD */
> +
> +/*
> + * This file is a placeholder only, to allow Lua to be compiled from
> + * unchanged sources.
> + */
> +
> +#include <machine/types.h>
> +#include <sys/systm.h>
> +
> Index: src/sys/modules/lua/signal.h
> diff -u /dev/null src/sys/modules/lua/signal.h:1.1
> --- /dev/null Wed Oct 16 19:44:58 2013
> +++ src/sys/modules/lua/signal.h Wed Oct 16 19:44:57 2013
> @@ -0,0 +1,6 @@
> +/* $NetBSD */
> +
> +/*
> + * This file is a placeholder only, to allow Lua to be compiled from
> + * unchanged sources.
> + */
> Index: src/sys/modules/lua/stdarg.h
> diff -u /dev/null src/sys/modules/lua/stdarg.h:1.1
> --- /dev/null Wed Oct 16 19:44:58 2013
> +++ src/sys/modules/lua/stdarg.h Wed Oct 16 19:44:57 2013
> @@ -0,0 +1,8 @@
> +/* $NetBSD */
> +
> +/*
> + * This file is a placeholder only, to allow Lua to be compiled from
> + * unchanged sources.
> + */
> +
> +#include <sys/stdarg.h>
> Index: src/sys/modules/lua/stddef.h
> diff -u /dev/null src/sys/modules/lua/stddef.h:1.1
> --- /dev/null Wed Oct 16 19:44:58 2013
> +++ src/sys/modules/lua/stddef.h Wed Oct 16 19:44:57 2013
> @@ -0,0 +1,16 @@
> +/* $NetBSD */
> +
> +/*
> + * This file is a placeholder only, to allow Lua to be compiled from
> + * unchanged sources.
> + */
> +
> +#include <sys/types.h>
> +
> +#ifdef _BSD_PTRDIFF_T_
> +typedef _BSD_PTRDIFF_T_ ptrdiff_t;
> +#undef _BSD_PTRDIFF_T_
> +#endif
> +
> +#include <sys/null.h>
> +
> Index: src/sys/modules/lua/stdio.h
> diff -u /dev/null src/sys/modules/lua/stdio.h:1.1
> --- /dev/null Wed Oct 16 19:44:58 2013
> +++ src/sys/modules/lua/stdio.h Wed Oct 16 19:44:57 2013
> @@ -0,0 +1,49 @@
> +/* $NetBSD */
> +/*
> + * Copyright (c) 2011, Lourival Neto <lneto%NetBSD.org@localhost>.
> + * 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.
> + */
> +
> +/*
> + * This file is a placeholder only, to allow Lua to be compiled from
> + * unchanged sources.
> + */
> +
> +#include <sys/param.h>
> +
> +#ifndef _LUA_INCLUDE_STDIO
> +#define _LUA_INCLUDE_STDIO
> +
> +#define fprintf(output, ...) printf(__VA_ARGS__)
> +
> +#define BUFSIZ (1024)
> +
> +#define putchar(c) printf("%c", c)
> +
> +#define fputs(s, f) printf(s)
> +
> +#endif
> +
> Index: src/sys/modules/lua/stdlib.h
> diff -u /dev/null src/sys/modules/lua/stdlib.h:1.1
> --- /dev/null Wed Oct 16 19:44:58 2013
> +++ src/sys/modules/lua/stdlib.h Wed Oct 16 19:44:57 2013
> @@ -0,0 +1,48 @@
> +/* $NetBSD */
> +
> +/*
> + * Copyright (c) 2011, Lourival Neto <lneto%NetBSD.org@localhost>.
> + * 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.
> + */
> +
> +/*
> + * This file is a placeholder only, to allow Lua to be compiled from
> + * unchanged sources.
> + */
> +
> +#include <sys/param.h>
> +#include <sys/kmem.h>
> +
> +#ifndef _LUA_INCLUDE_STDLIB
> +#define _LUA_INCLUDE_STDLIB
> +
> +#define realloc(ptr, nsize) kmem_alloc(nsize, KM_SLEEP)
> +#define free(ptr) kmem_free(ptr, osize)
> +
> +#define exit(EXIT_FAILURE) return
> +
> +#endif
> +
> Index: src/sys/modules/lua/string.h
> diff -u /dev/null src/sys/modules/lua/string.h:1.1
> --- /dev/null Wed Oct 16 19:44:58 2013
> +++ src/sys/modules/lua/string.h Wed Oct 16 19:44:57 2013
> @@ -0,0 +1,21 @@
> +/* $NetBSD */
> +
> +/*
> + * This file is a placeholder only, to allow Lua to be compiled from
> + * unchanged sources.
> + */
> +
> +#include <sys/param.h>
> +
> +#ifndef _LUA_INCLUDE_STRING_
> +#define _LUA_INCLUDE_STRING_
> +
> +#define strcoll strcmp
> +
> +char *strncat(char *dst, const char *src, size_t n);
> +size_t strspn(const char *s, const char *charset);
> +size_t strcspn(const char *s, const char *charset);
> +char *strpbrk(const char *s, const char *charset);
> +
> +#endif
> +
> Index: src/sys/modules/lua/test.lua
> diff -u /dev/null src/sys/modules/lua/test.lua:1.1
> --- /dev/null Wed Oct 16 19:44:58 2013
> +++ src/sys/modules/lua/test.lua Wed Oct 16 19:44:57 2013
> @@ -0,0 +1,8 @@
> +require 'core'
> +
> +core.print("hello, kernel world!\n")
> +
> +function onClose()
> + core.print('I am about to be closed\n')
> +end
> +
>
--
Home |
Main Index |
Thread Index |
Old Index