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/*
* Copyright (C) 2013 Patrick "P. J." McDermott
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program. If not, see
* <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <lua.h>
#include <lualib.h>
#include <lauxlib.h>
#include "logging.h"
#include "script.h"
/* LUA_OK is defined in Lua 5.2 but not 5.1. */
#ifndef LUA_OK
#define LUA_OK 0
#endif
struct script *
script_load(const char *path)
{
struct script *s;
s = malloc(sizeof(*s));
if (s == NULL) {
err(1, "Failed to allocate script");
}
s->path = path;
/* Load the script. */
s->lua_state = luaL_newstate();
luaL_openlibs(s->lua_state);
if (luaL_loadfile(s->lua_state, path) != LUA_OK) {
err(1, "Error loading script: %s\n",
lua_tostring(s->lua_state, -1));
}
/* Run the script once to let it define functions. */
if (lua_pcall(s->lua_state, 0, 0, 0) != LUA_OK) {
err(1, "Error running script: %s\n",
lua_tostring(s->lua_state, -1));
}
return s;
}
void
script_call(struct script *s, const char *func)
{
lua_getglobal(s->lua_state, func);
if (lua_pcall(s->lua_state, 0, 0, 0) != LUA_OK) {
err(1, "Error calling function: %s\n",
lua_tostring(s->lua_state, -1));
}
}
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