lua_apr.c revision e4709c20138a8cd7c85a6ffba716d85fd2f6cdf5
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "apr.h"
#include "apr_tables.h"
#include "lua.h"
#include "lauxlib.h"
#include "lualib.h"
#include "lua_apr.h"
/**
* make a userdata out of a C pointer, and vice versa
* instead of using lightuserdata
*/
#ifndef lua_boxpointer
#define lua_boxpointer(L,u) (*(void **)(lua_newuserdata(L, sizeof(void *))) = (u))
#define lua_unboxpointer(L,i) (*(void **)(lua_touserdata(L, i)))
#endif
apr_table_t *check_apr_table(lua_State *L, int index)
{
apr_table_t *t;
luaL_checkudata(L, index, "Apr.Table");
t = (apr_table_t *) lua_unboxpointer(L, index);
return t;
}
void apl_push_apr_table(lua_State *L, apr_table_t *t)
{
lua_boxpointer(L, t);
luaL_getmetatable(L, "Apr.Table");
lua_setmetatable(L, -2);
}
static int lua_table_set(lua_State *L)
{
apr_table_t *t = check_apr_table(L, 1);
const char *key = luaL_checkstring(L, 2);
const char *val = luaL_checkstring(L, 3);
apr_table_set(t, key, val);
return 0;
}
static int lua_table_get(lua_State *L)
{
apr_table_t *t = check_apr_table(L, 1);
const char *key = luaL_checkstring(L, 2);
const char *val = apr_table_get(t, key);
lua_pushstring(L, val);
return 1;
}
static const luaL_reg lua_table_methods[] = {
{"set", lua_table_set},
{"get", lua_table_get},
{0, 0}
};
int apr_lua_init(lua_State *L, apr_pool_t *p)
{
luaL_newmetatable(L, "Apr.Table");
luaL_openlib(L, "apr_table", lua_table_methods, 0);
lua_pushstring(L, "__index");
lua_pushstring(L, "get");
lua_gettable(L, 2);
lua_settable(L, 1);
lua_pushstring(L, "__newindex");
lua_pushstring(L, "set");
lua_gettable(L, 2);
lua_settable(L, 1);
return 0;
}