本文介绍了如何清洁Lua线?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我的情况是,我使用Lua(C)API来执行一个字符串中的脚本。
我希望用户能够终止脚本的执行(如果脚本包含无限循环,这是必不可少的),我该如何做?
My situation is that I'm using the Lua (C) API to execute a script held in a string.I would like the user to be able to terminate the execution of the script (this is essential if the script contains an infinite loop), how can I do this?
lua_State *Lua = lua_open();
char * code;
// Initialisation code
luaL_dostring(L, code);
推荐答案
每次都可以使用钩子回调C lua执行一行脚本。
在这个钩子函数中,你可以检查用户是否想退出,如果是,就调用lua_error。
You can use a hook to callback to C every time lua executes a line of the script.In this hook function you can check if the user wanted to quit, and call lua_error if they did.
static bool ms_quit = false;
void IWantToQuit()
{
ms_quit = true;
}
void LineHookFunc(lua_State *L, lua_Debug *ar)
{
if(ar.event == LUA_HOOKLINE)
if(ms_quit == true)
luaL_error(L, "Too Many Lines Error");
}
//...
lua_State *Lua = lua_open();
char * code;
// Initialisation code
lua_sethook(Lua, &LineHookFunc, LUA_MASKLINE, 0);
luaL_dostring(L, code);
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