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Lunatic reorganization part 1: two renames and one deletion.

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git-svn-id: https://svn.eduke32.com/eduke32@3147 1a8010ca-5511-0410-912e-c29ae57300e0
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helixhorned 2012-11-10 20:58:54 +00:00
parent 03454c8c3c
commit 550acb2b1a
3 changed files with 0 additions and 143 deletions
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polymer/eduke32/source/lunatic/lunatic.c → polymer/eduke32/source/lunatic/lunatic_game.c
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0
polymer/eduke32/source/lunatic/lunatic.h → polymer/eduke32/source/lunatic/lunatic_game.h
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143
polymer/eduke32/source/lunatic/lunatic_priv.h
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@ -1,143 +0,0 @@
/* Private, game/editor-common Lunatic routines.
* This file is intended to be included exactly ONCE in the game and editor
* Lunatic sources. */
#include <lua.h>
#include <lauxlib.h>
#include "cache1d.h"
#include "osd.h"
// Lua-registry key for debug.traceback
static uint8_t debug_traceback_key;
static void check_and_register_function(lua_State *L, void *regkeyaddr)
{
luaL_checktype(L, -1, LUA_TFUNCTION);
lua_pushlightuserdata(L, regkeyaddr); // 3, push address
lua_pushvalue(L, -2); // 4, push copy of lua function
lua_settable(L, LUA_REGISTRYINDEX); // "registry[regkeyaddr] = <lua function>", pop 2
}
static void setup_debug_traceback(lua_State *L)
{
// get debug.traceback
lua_getglobal(L, "debug");
lua_getfield(L, -1, "traceback");
Bassert(lua_isfunction(L, -1));
check_and_register_function(L, &debug_traceback_key);
lua_pop(L, 2);
}
static int32_t read_whole_file(const char *fn, char **retbufptr)
{
int32_t fid, flen, i;
char *buf;
*retbufptr = NULL;
fid = kopen4load(fn, 0); // TODO: g_loadFromGroupOnly, kopen4loadfrommod ?
if (fid < 0)
return 1;
flen = kfilelength(fid);
if (flen == 0)
return 5;
buf = Bmalloc(flen+1);
if (!buf)
{
kclose(fid);
return -1;
}
i = kread(fid, buf, flen);
kclose(fid);
if (i != flen)
{
Bfree(buf);
return 2;
}
buf[flen] = 0;
*retbufptr = buf;
return 0;
}
static int32_t lunatic_run_string(lua_State *L, char *buf, int32_t dofreebuf, const char *statename)
{
int32_t i;
// -- lua --
Bassert(lua_gettop(L)==0);
// get debug.traceback
lua_pushlightuserdata(L, &debug_traceback_key);
lua_gettable(L, LUA_REGISTRYINDEX);
Bassert(lua_isfunction(L, -1));
i = luaL_loadstring(L, buf);
Bassert(lua_gettop(L)==2);
if (dofreebuf)
Bfree(buf);
if (i == LUA_ERRMEM)
{
lua_pop(L, 2);
return -1;
}
if (i == LUA_ERRSYNTAX)
{
OSD_Printf("state \"%s\" syntax error: %s\n", statename,
lua_tostring(L, -1)); // get err msg
lua_pop(L, 2); // pop errmsg and debug.traceback
return 3;
}
// -- call the lua chunk! --
i = lua_pcall(L, 0, 0, -2);
Bassert(lua_gettop(L) == 1+!!i);
Bassert(i != LUA_ERRERR); // we expect debug.traceback not to fail
if (i == LUA_ERRMEM) // XXX: should be more sophisticated. Clean up stack? Do GC?
{
lua_pop(L, 2);
return -1;
}
if (i == LUA_ERRRUN)
{
int32_t stringp = (lua_type(L, -1)==LUA_TSTRING);
// get error message if possible
OSD_Printf("state \"%s\" runtime error: %s\n", statename,
stringp ? lua_tostring(L, -1) : "??? (errmsg not a string)");
lua_pop(L, 2); // pop errmsg and debug.traceback
return 4;
}
lua_pop(L, 1);
return 0;
}
static int32_t lunatic_run_once(lua_State *L, const char *fn, const char *statename)
{
int32_t i;
char *buf;
i = read_whole_file(fn, &buf);
if (i != 0)
return i;
return lunatic_run_string(L, buf, 1, statename);
}