[src/trunk]: src/sys/modules/luacore core module for lua(4)

[mbalmer <mbalmer%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/bf96b897c56a
branches:  trunk
changeset: 790538:bf96b897c56a
user:      mbalmer <mbalmer%NetBSD.org@localhost>
date:      Wed Oct 16 19:47:19 2013 +0000

description:
core module for lua(4)

diffstat:

 sys/modules/luacore/Makefile  |   11 ++
 sys/modules/luacore/luacore.c |  204 ++++++++++++++++++++++++++++++++++++++++++
 sys/modules/luacore/test.lua  |    4 +
 3 files changed, 219 insertions(+), 0 deletions(-)

diffs (231 lines):

diff -r b16f2fca31fd -r bf96b897c56a sys/modules/luacore/Makefile
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/modules/luacore/Makefile      Wed Oct 16 19:47:19 2013 +0000
@@ -0,0 +1,11 @@
+#      $NetBSD: Makefile,v 1.1 2013/10/16 19:47:19 mbalmer Exp $
+
+.include "../Makefile.inc"
+
+KMOD=          luacore
+SRCS=          luacore.c
+
+CPPFLAGS+=     -I${S}/../external/mit/lua/dist/src \
+               -I${S}/modules/lua
+
+.include <bsd.kmodule.mk>
diff -r b16f2fca31fd -r bf96b897c56a sys/modules/luacore/luacore.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/modules/luacore/luacore.c     Wed Oct 16 19:47:19 2013 +0000
@@ -0,0 +1,204 @@
+/*     $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.
+ */
+
+/* Lua core kernel services module */
+
+#include <sys/param.h>
+#include <sys/lua.h>
+#include <sys/callout.h>
+#ifdef _MODULE
+#include <sys/module.h>
+#endif
+#include <sys/systm.h>
+
+#include <lua.h>
+
+#ifdef _MODULE
+MODULE(MODULE_CLASS_LUA_BINDING, luacore, "lua");
+
+/* Various printing functions */
+static int
+print(lua_State *L)
+{
+       printf("%s", lua_tostring(L, -1));
+       return 0;
+}
+
+static int
+print_nolog(lua_State *L)
+{
+       printf_nolog("%s", lua_tostring(L, -1));
+       return 0;
+}
+
+static int
+uprint(lua_State *L)
+{
+       uprintf("%s", lua_tostring(L, -1));
+       return 0;
+}
+
+static int
+core_aprint_normal(lua_State *L)
+{
+       aprint_normal("%s", lua_tostring(L, -1));
+       return 0;
+}
+
+static int
+core_aprint_naive(lua_State *L)
+{
+       aprint_naive("%s", lua_tostring(L, -1));
+       return 0;
+}
+
+static int
+core_aprint_verbose(lua_State *L)
+{
+       aprint_verbose("%s", lua_tostring(L, -1));
+       return 0;
+}
+
+static int
+core_aprint_debug(lua_State *L)
+{
+       aprint_debug("%s", lua_tostring(L, -1));
+       return 0;
+}
+
+static int
+core_aprint_error(lua_State *L)
+{
+       aprint_error("%s", lua_tostring(L, -1));
+       return 0;
+}
+
+static int
+core_aprint_get_error_count(lua_State *L)
+{
+       lua_pushinteger(L, aprint_get_error_count());
+       return 1;
+}
+
+/* panicing */
+
+static int
+core_panic(lua_State *L)
+{
+       panic(lua_tostring(L, -1));
+       return 0;
+}
+
+/* callouts */
+
+/* mutexes */
+
+struct core_reg {
+       const char *n;
+       int (*f)(lua_State *);
+};
+
+static int
+luaopen_core(void *ls)
+{
+       lua_State *L = (lua_State *)ls;
+       int n, nfunc;
+       struct core_reg core[] = {
+               /* printing functions */
+               { "print",                      print },
+               { "print_nolog",                print_nolog },
+               { "uprint",                     uprint },
+               { "aprint_normal",              core_aprint_normal },
+               { "aprint_naive",               core_aprint_naive },
+               { "aprint_verbose",             core_aprint_verbose },
+               { "aprint_debug",               core_aprint_debug },
+               { "aprint_error",               core_aprint_error },
+               { "aprint_get_error_count",     core_aprint_get_error_count },
+
+               /* panicing */
+               { "panic",                      core_panic },
+
+               /* callouts */
+
+               /* mutexes */
+       };
+
+       nfunc = sizeof(core)/sizeof(core[1]);
+
+       lua_createtable(L, nfunc, 0);
+       for (n = 0; n < nfunc; n++) {
+               lua_pushcfunction(L, core[n].f);
+               lua_setfield(L, -2, core[n].n);
+       }
+
+       /* some string values */
+       lua_pushstring(L, copyright);
+       lua_setfield(L, -2, "copyright");
+       lua_pushstring(L, cpu_model);
+       lua_setfield(L, -2, "cpu_model");
+       lua_pushstring(L, machine);
+       lua_setfield(L, -2, "machine");
+       lua_pushstring(L, machine_arch);
+       lua_setfield(L, -2, "machine_arch");
+       lua_pushstring(L, osrelease);
+       lua_setfield(L, -2, "osrelease");
+       lua_pushstring(L, ostype);
+       lua_setfield(L, -2, "ostype");
+       lua_pushstring(L, kernel_ident);
+       lua_setfield(L, -2, "kernel_ident");
+       lua_pushstring(L, version);
+       lua_setfield(L, -2, "version");
+
+       /* some integer values */
+       lua_pushinteger(L, ncpu);
+       lua_setfield(L, -2, "ncpu");
+
+       lua_setglobal(L, "core");
+       return 1;
+}
+
+static int
+luacore_modcmd(modcmd_t cmd, void *opaque)
+{
+       int error;
+
+       switch (cmd) {
+       case MODULE_CMD_INIT:
+               error = lua_mod_register("core", luaopen_core);
+               break;
+       case MODULE_CMD_FINI:
+               error = lua_mod_unregister("core");
+               break;
+       default:
+               error = ENOTTY;
+       }
+       return error;
+}
+#endif
diff -r b16f2fca31fd -r bf96b897c56a sys/modules/luacore/test.lua
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/modules/luacore/test.lua      Wed Oct 16 19:47:19 2013 +0000
@@ -0,0 +1,4 @@
+require 'core'
+
+core.print("hello, kernel world!\n")
+