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update to lua 5.3, remove lua unsigned api

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This commit is contained in:
Cloud Wu
2015-01-05 16:25:42 +08:00
parent 4a2b253b40
commit c7b5015e10
76 changed files with 6960 additions and 5058 deletions
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383
3rd/lua/lauxlib.c
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@@ -1,9 +1,14 @@
/*
** $Id: lauxlib.c,v 1.248.1.1 2013/04/12 18:48:47 roberto Exp $
** $Id: lauxlib.c,v 1.279 2014/12/14 18:32:26 roberto Exp $
** Auxiliary functions for building Lua libraries
** See Copyright Notice in lua.h
*/
#define lauxlib_c
#define LUA_LIB
#include "lprefix.h"
#include <errno.h>
#include <stdarg.h>
@@ -16,9 +21,6 @@
** Any function declared here could be written as an application function.
*/
#define lauxlib_c
#define LUA_LIB
#include "lua.h"
#include "lauxlib.h"
@@ -64,11 +66,20 @@ static int findfield (lua_State *L, int objidx, int level) {
}
/*
** Search for a name for a function in all loaded modules
** (registry._LOADED).
*/
static int pushglobalfuncname (lua_State *L, lua_Debug *ar) {
int top = lua_gettop(L);
lua_getinfo(L, "f", ar); /* push function */
lua_pushglobaltable(L);
lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED");
if (findfield(L, top + 1, 2)) {
const char *name = lua_tostring(L, -1);
if (strncmp(name, "_G.", 3) == 0) { /* name start with '_G.'? */
lua_pushstring(L, name + 3); /* push name without prefix */
lua_remove(L, -2); /* remove original name */
}
lua_copy(L, -1, top + 1); /* move name to proper place */
lua_pop(L, 2); /* remove pushed values */
return 1;
@@ -81,20 +92,18 @@ static int pushglobalfuncname (lua_State *L, lua_Debug *ar) {
static void pushfuncname (lua_State *L, lua_Debug *ar) {
if (*ar->namewhat != '\0') /* is there a name? */
lua_pushfstring(L, "function " LUA_QS, ar->name);
if (pushglobalfuncname(L, ar)) { /* try first a global name */
lua_pushfstring(L, "function '%s'", lua_tostring(L, -1));
lua_remove(L, -2); /* remove name */
}
else if (*ar->namewhat != '\0') /* is there a name from code? */
lua_pushfstring(L, "%s '%s'", ar->namewhat, ar->name); /* use it */
else if (*ar->what == 'm') /* main? */
lua_pushliteral(L, "main chunk");
else if (*ar->what == 'C') {
if (pushglobalfuncname(L, ar)) {
lua_pushfstring(L, "function " LUA_QS, lua_tostring(L, -1));
lua_remove(L, -2); /* remove name */
}
else
lua_pushliteral(L, "?");
}
else
else if (*ar->what != 'C') /* for Lua functions, use <file:line> */
lua_pushfstring(L, "function <%s:%d>", ar->short_src, ar->linedefined);
else /* nothing left... */
lua_pushliteral(L, "?");
}
@@ -150,33 +159,40 @@ LUALIB_API void luaL_traceback (lua_State *L, lua_State *L1,
** =======================================================
*/
LUALIB_API int luaL_argerror (lua_State *L, int narg, const char *extramsg) {
LUALIB_API int luaL_argerror (lua_State *L, int arg, const char *extramsg) {
lua_Debug ar;
if (!lua_getstack(L, 0, &ar)) /* no stack frame? */
return luaL_error(L, "bad argument #%d (%s)", narg, extramsg);
return luaL_error(L, "bad argument #%d (%s)", arg, extramsg);
lua_getinfo(L, "n", &ar);
if (strcmp(ar.namewhat, "method") == 0) {
narg--; /* do not count `self' */
if (narg == 0) /* error is in the self argument itself? */
return luaL_error(L, "calling " LUA_QS " on bad self (%s)",
arg--; /* do not count 'self' */
if (arg == 0) /* error is in the self argument itself? */
return luaL_error(L, "calling '%s' on bad self (%s)",
ar.name, extramsg);
}
if (ar.name == NULL)
ar.name = (pushglobalfuncname(L, &ar)) ? lua_tostring(L, -1) : "?";
return luaL_error(L, "bad argument #%d to " LUA_QS " (%s)",
narg, ar.name, extramsg);
return luaL_error(L, "bad argument #%d to '%s' (%s)",
arg, ar.name, extramsg);
}
static int typeerror (lua_State *L, int narg, const char *tname) {
const char *msg = lua_pushfstring(L, "%s expected, got %s",
tname, luaL_typename(L, narg));
return luaL_argerror(L, narg, msg);
static int typeerror (lua_State *L, int arg, const char *tname) {
const char *msg;
const char *typearg; /* name for the type of the actual argument */
if (luaL_getmetafield(L, arg, "__name") == LUA_TSTRING)
typearg = lua_tostring(L, -1); /* use the given type name */
else if (lua_type(L, arg) == LUA_TLIGHTUSERDATA)
typearg = "light userdata"; /* special name for messages */
else
typearg = luaL_typename(L, arg); /* standard name */
msg = lua_pushfstring(L, "%s expected, got %s", tname, typearg);
return luaL_argerror(L, arg, msg);
}
static void tag_error (lua_State *L, int narg, int tag) {
typeerror(L, narg, lua_typename(L, tag));
static void tag_error (lua_State *L, int arg, int tag) {
typeerror(L, arg, lua_typename(L, tag));
}
@@ -222,7 +238,7 @@ LUALIB_API int luaL_fileresult (lua_State *L, int stat, const char *fname) {
}
#if !defined(inspectstat) /* { */
#if !defined(l_inspectstat) /* { */
#if defined(LUA_USE_POSIX)
@@ -231,13 +247,13 @@ LUALIB_API int luaL_fileresult (lua_State *L, int stat, const char *fname) {
/*
** use appropriate macros to interpret 'pclose' return status
*/
#define inspectstat(stat,what) \
#define l_inspectstat(stat,what) \
if (WIFEXITED(stat)) { stat = WEXITSTATUS(stat); } \
else if (WIFSIGNALED(stat)) { stat = WTERMSIG(stat); what = "signal"; }
#else
#define inspectstat(stat,what) /* no op */
#define l_inspectstat(stat,what) /* no op */
#endif
@@ -249,7 +265,7 @@ LUALIB_API int luaL_execresult (lua_State *L, int stat) {
if (stat == -1) /* error? */
return luaL_fileresult(L, 0, NULL);
else {
inspectstat(stat, what); /* interpret result */
l_inspectstat(stat, what); /* interpret result */
if (*what == 'e' && stat == 0) /* successful termination? */
lua_pushboolean(L, 1);
else
@@ -270,11 +286,12 @@ LUALIB_API int luaL_execresult (lua_State *L, int stat) {
*/
LUALIB_API int luaL_newmetatable (lua_State *L, const char *tname) {
luaL_getmetatable(L, tname); /* try to get metatable */
if (!lua_isnil(L, -1)) /* name already in use? */
if (luaL_getmetatable(L, tname)) /* name already in use? */
return 0; /* leave previous value on top, but return 0 */
lua_pop(L, 1);
lua_newtable(L); /* create metatable */
lua_pushstring(L, tname);
lua_setfield(L, -2, "__name"); /* metatable.__name = tname */
lua_pushvalue(L, -1);
lua_setfield(L, LUA_REGISTRYINDEX, tname); /* registry.name = metatable */
return 1;
@@ -317,16 +334,16 @@ LUALIB_API void *luaL_checkudata (lua_State *L, int ud, const char *tname) {
** =======================================================
*/
LUALIB_API int luaL_checkoption (lua_State *L, int narg, const char *def,
LUALIB_API int luaL_checkoption (lua_State *L, int arg, const char *def,
const char *const lst[]) {
const char *name = (def) ? luaL_optstring(L, narg, def) :
luaL_checkstring(L, narg);
const char *name = (def) ? luaL_optstring(L, arg, def) :
luaL_checkstring(L, arg);
int i;
for (i=0; lst[i]; i++)
if (strcmp(lst[i], name) == 0)
return i;
return luaL_argerror(L, narg,
lua_pushfstring(L, "invalid option " LUA_QS, name));
return luaL_argerror(L, arg,
lua_pushfstring(L, "invalid option '%s'", name));
}
@@ -342,77 +359,71 @@ LUALIB_API void luaL_checkstack (lua_State *L, int space, const char *msg) {
}
LUALIB_API void luaL_checktype (lua_State *L, int narg, int t) {
if (lua_type(L, narg) != t)
tag_error(L, narg, t);
LUALIB_API void luaL_checktype (lua_State *L, int arg, int t) {
if (lua_type(L, arg) != t)
tag_error(L, arg, t);
}
LUALIB_API void luaL_checkany (lua_State *L, int narg) {
if (lua_type(L, narg) == LUA_TNONE)
luaL_argerror(L, narg, "value expected");
LUALIB_API void luaL_checkany (lua_State *L, int arg) {
if (lua_type(L, arg) == LUA_TNONE)
luaL_argerror(L, arg, "value expected");
}
LUALIB_API const char *luaL_checklstring (lua_State *L, int narg, size_t *len) {
const char *s = lua_tolstring(L, narg, len);
if (!s) tag_error(L, narg, LUA_TSTRING);
LUALIB_API const char *luaL_checklstring (lua_State *L, int arg, size_t *len) {
const char *s = lua_tolstring(L, arg, len);
if (!s) tag_error(L, arg, LUA_TSTRING);
return s;
}
LUALIB_API const char *luaL_optlstring (lua_State *L, int narg,
LUALIB_API const char *luaL_optlstring (lua_State *L, int arg,
const char *def, size_t *len) {
if (lua_isnoneornil(L, narg)) {
if (lua_isnoneornil(L, arg)) {
if (len)
*len = (def ? strlen(def) : 0);
return def;
}
else return luaL_checklstring(L, narg, len);
else return luaL_checklstring(L, arg, len);
}
LUALIB_API lua_Number luaL_checknumber (lua_State *L, int narg) {
LUALIB_API lua_Number luaL_checknumber (lua_State *L, int arg) {
int isnum;
lua_Number d = lua_tonumberx(L, narg, &isnum);
lua_Number d = lua_tonumberx(L, arg, &isnum);
if (!isnum)
tag_error(L, narg, LUA_TNUMBER);
tag_error(L, arg, LUA_TNUMBER);
return d;
}
LUALIB_API lua_Number luaL_optnumber (lua_State *L, int narg, lua_Number def) {
return luaL_opt(L, luaL_checknumber, narg, def);
LUALIB_API lua_Number luaL_optnumber (lua_State *L, int arg, lua_Number def) {
return luaL_opt(L, luaL_checknumber, arg, def);
}
LUALIB_API lua_Integer luaL_checkinteger (lua_State *L, int narg) {
static void interror (lua_State *L, int arg) {
if (lua_isnumber(L, arg))
luaL_argerror(L, arg, "number has no integer representation");
else
tag_error(L, arg, LUA_TNUMBER);
}
LUALIB_API lua_Integer luaL_checkinteger (lua_State *L, int arg) {
int isnum;
lua_Integer d = lua_tointegerx(L, narg, &isnum);
if (!isnum)
tag_error(L, narg, LUA_TNUMBER);
lua_Integer d = lua_tointegerx(L, arg, &isnum);
if (!isnum) {
interror(L, arg);
}
return d;
}
LUALIB_API lua_Unsigned luaL_checkunsigned (lua_State *L, int narg) {
int isnum;
lua_Unsigned d = lua_tounsignedx(L, narg, &isnum);
if (!isnum)
tag_error(L, narg, LUA_TNUMBER);
return d;
}
LUALIB_API lua_Integer luaL_optinteger (lua_State *L, int narg,
LUALIB_API lua_Integer luaL_optinteger (lua_State *L, int arg,
lua_Integer def) {
return luaL_opt(L, luaL_checkinteger, narg, def);
}
LUALIB_API lua_Unsigned luaL_optunsigned (lua_State *L, int narg,
lua_Unsigned def) {
return luaL_opt(L, luaL_checkunsigned, narg, def);
return luaL_opt(L, luaL_checkinteger, arg, def);
}
/* }====================================================== */
@@ -523,7 +534,7 @@ LUALIB_API int luaL_ref (lua_State *L, int t) {
int ref;
if (lua_isnil(L, -1)) {
lua_pop(L, 1); /* remove from stack */
return LUA_REFNIL; /* `nil' has a unique fixed reference */
return LUA_REFNIL; /* 'nil' has a unique fixed reference */
}
t = lua_absindex(L, t);
lua_rawgeti(L, t, freelist); /* get first free element */
@@ -562,7 +573,7 @@ LUALIB_API void luaL_unref (lua_State *L, int t, int ref) {
typedef struct LoadF {
int n; /* number of pre-read characters */
FILE *f; /* file being read */
char buff[LUAL_BUFFERSIZE]; /* area for reading file */
char buff[BUFSIZ]; /* area for reading file */
} LoadF;
@@ -627,7 +638,7 @@ static int skipcomment (LoadF *lf, int *cp) {
}
static int luaL_loadfilex_ (lua_State *L, const char *filename,
LUALIB_API int luaL_loadfilex (lua_State *L, const char *filename,
const char *mode) {
LoadF lf;
int status, readstatus;
@@ -655,7 +666,7 @@ static int luaL_loadfilex_ (lua_State *L, const char *filename,
readstatus = ferror(lf.f);
if (filename) fclose(lf.f); /* close file (even in case of errors) */
if (readstatus) {
lua_settop(L, fnameindex); /* ignore results from `lua_load' */
lua_settop(L, fnameindex); /* ignore results from 'lua_load' */
return errfile(L, "read", fnameindex);
}
lua_remove(L, fnameindex);
@@ -698,23 +709,23 @@ LUALIB_API int luaL_loadstring (lua_State *L, const char *s) {
LUALIB_API int luaL_getmetafield (lua_State *L, int obj, const char *event) {
if (!lua_getmetatable(L, obj)) /* no metatable? */
return 0;
lua_pushstring(L, event);
lua_rawget(L, -2);
if (lua_isnil(L, -1)) {
lua_pop(L, 2); /* remove metatable and metafield */
return 0;
}
return LUA_TNIL;
else {
lua_remove(L, -2); /* remove only metatable */
return 1;
int tt;
lua_pushstring(L, event);
tt = lua_rawget(L, -2);
if (tt == LUA_TNIL) /* is metafield nil? */
lua_pop(L, 2); /* remove metatable and metafield */
else
lua_remove(L, -2); /* remove only metatable */
return tt; /* return metafield type */
}
}
LUALIB_API int luaL_callmeta (lua_State *L, int obj, const char *event) {
obj = lua_absindex(L, obj);
if (!luaL_getmetafield(L, obj, event)) /* no metafield? */
if (luaL_getmetafield(L, obj, event) == LUA_TNIL) /* no metafield? */
return 0;
lua_pushvalue(L, obj);
lua_call(L, 1, 1);
@@ -722,13 +733,13 @@ LUALIB_API int luaL_callmeta (lua_State *L, int obj, const char *event) {
}
LUALIB_API int luaL_len (lua_State *L, int idx) {
int l;
LUALIB_API lua_Integer luaL_len (lua_State *L, int idx) {
lua_Integer l;
int isnum;
lua_len(L, idx);
l = (int)lua_tointegerx(L, -1, &isnum);
l = lua_tointegerx(L, -1, &isnum);
if (!isnum)
luaL_error(L, "object length is not a number");
luaL_error(L, "object length is not an integer");
lua_pop(L, 1); /* remove object */
return l;
}
@@ -737,7 +748,13 @@ LUALIB_API int luaL_len (lua_State *L, int idx) {
LUALIB_API const char *luaL_tolstring (lua_State *L, int idx, size_t *len) {
if (!luaL_callmeta(L, idx, "__tostring")) { /* no metafield? */
switch (lua_type(L, idx)) {
case LUA_TNUMBER:
case LUA_TNUMBER: {
if (lua_isinteger(L, idx))
lua_pushfstring(L, "%I", lua_tointeger(L, idx));
else
lua_pushfstring(L, "%f", lua_tonumber(L, idx));
break;
}
case LUA_TSTRING:
lua_pushvalue(L, idx);
break;
@@ -772,8 +789,7 @@ static const char *luaL_findtable (lua_State *L, int idx,
e = strchr(fname, '.');
if (e == NULL) e = fname + strlen(fname);
lua_pushlstring(L, fname, e - fname);
lua_rawget(L, -2);
if (lua_isnil(L, -1)) { /* no such field? */
if (lua_rawget(L, -2) == LUA_TNIL) { /* no such field? */
lua_pop(L, 1); /* remove this nil */
lua_createtable(L, 0, (*e == '.' ? 1 : szhint)); /* new table for field */
lua_pushlstring(L, fname, e - fname);
@@ -810,13 +826,12 @@ static int libsize (const luaL_Reg *l) {
LUALIB_API void luaL_pushmodule (lua_State *L, const char *modname,
int sizehint) {
luaL_findtable(L, LUA_REGISTRYINDEX, "_LOADED", 1); /* get _LOADED table */
lua_getfield(L, -1, modname); /* get _LOADED[modname] */
if (!lua_istable(L, -1)) { /* not found? */
if (lua_getfield(L, -1, modname) != LUA_TTABLE) { /* no _LOADED[modname]? */
lua_pop(L, 1); /* remove previous result */
/* try global variable (and create one if it does not exist) */
lua_pushglobaltable(L);
if (luaL_findtable(L, 0, modname, sizehint) != NULL)
luaL_error(L, "name conflict for module " LUA_QS, modname);
luaL_error(L, "name conflict for module '%s'", modname);
lua_pushvalue(L, -1);
lua_setfield(L, -3, modname); /* _LOADED[modname] = new table */
}
@@ -846,7 +861,6 @@ LUALIB_API void luaL_openlib (lua_State *L, const char *libname,
** Returns with only the table at the stack.
*/
LUALIB_API void luaL_setfuncs (lua_State *L, const luaL_Reg *l, int nup) {
luaL_checkversion(L);
luaL_checkstack(L, nup, "too many upvalues");
for (; l->name != NULL; l++) { /* fill the table with given functions */
int i;
@@ -864,8 +878,8 @@ LUALIB_API void luaL_setfuncs (lua_State *L, const luaL_Reg *l, int nup) {
** into the stack
*/
LUALIB_API int luaL_getsubtable (lua_State *L, int idx, const char *fname) {
lua_getfield(L, idx, fname);
if (lua_istable(L, -1)) return 1; /* table already there */
if (lua_getfield(L, idx, fname) == LUA_TTABLE)
return 1; /* table already there */
else {
lua_pop(L, 1); /* remove previous result */
idx = lua_absindex(L, idx);
@@ -878,22 +892,26 @@ LUALIB_API int luaL_getsubtable (lua_State *L, int idx, const char *fname) {
/*
** stripped-down 'require'. Calls 'openf' to open a module,
** registers the result in 'package.loaded' table and, if 'glb'
** is true, also registers the result in the global table.
** Stripped-down 'require': After checking "loaded" table, calls 'openf'
** to open a module, registers the result in 'package.loaded' table and,
** if 'glb' is true, also registers the result in the global table.
** Leaves resulting module on the top.
*/
LUALIB_API void luaL_requiref (lua_State *L, const char *modname,
lua_CFunction openf, int glb) {
lua_pushcfunction(L, openf);
lua_pushstring(L, modname); /* argument to open function */
lua_call(L, 1, 1); /* open module */
luaL_getsubtable(L, LUA_REGISTRYINDEX, "_LOADED");
lua_pushvalue(L, -2); /* make copy of module (call result) */
lua_setfield(L, -2, modname); /* _LOADED[modname] = module */
lua_pop(L, 1); /* remove _LOADED table */
lua_getfield(L, -1, modname); /* _LOADED[modname] */
if (!lua_toboolean(L, -1)) { /* package not already loaded? */
lua_pop(L, 1); /* remove field */
lua_pushcfunction(L, openf);
lua_pushstring(L, modname); /* argument to open function */
lua_call(L, 1, 1); /* call 'openf' to open module */
lua_pushvalue(L, -1); /* make copy of module (call result) */
lua_setfield(L, -3, modname); /* _LOADED[modname] = module */
}
lua_remove(L, -2); /* remove _LOADED table */
if (glb) {
lua_pushvalue(L, -1); /* copy of 'mod' */
lua_pushvalue(L, -1); /* copy of module */
lua_setglobal(L, modname); /* _G[modname] = module */
}
}
@@ -908,7 +926,7 @@ LUALIB_API const char *luaL_gsub (lua_State *L, const char *s, const char *p,
while ((wild = strstr(s, p)) != NULL) {
luaL_addlstring(&b, s, wild - s); /* push prefix */
luaL_addstring(&b, r); /* push replacement in place of pattern */
s = wild + l; /* continue after `p' */
s = wild + l; /* continue after 'p' */
}
luaL_addstring(&b, s); /* push last suffix */
luaL_pushresult(&b);
@@ -928,8 +946,8 @@ static void *l_alloc (void *ud, void *ptr, size_t osize, size_t nsize) {
static int panic (lua_State *L) {
luai_writestringerror("PANIC: unprotected error in call to Lua API (%s)\n",
lua_tostring(L, -1));
lua_writestringerror("PANIC: unprotected error in call to Lua API (%s)\n",
lua_tostring(L, -1));
return 0; /* return to Lua to abort */
}
@@ -941,137 +959,14 @@ LUALIB_API lua_State *luaL_newstate (void) {
}
LUALIB_API void luaL_checkversion_ (lua_State *L, lua_Number ver) {
LUALIB_API void luaL_checkversion_ (lua_State *L, lua_Number ver, size_t sz) {
const lua_Number *v = lua_version(L);
if (sz != LUAL_NUMSIZES) /* check numeric types */
luaL_error(L, "core and library have incompatible numeric types");
if (v != lua_version(NULL))
luaL_error(L, "multiple Lua VMs detected");
else if (*v != ver)
luaL_error(L, "version mismatch: app. needs %f, Lua core provides %f",
ver, *v);
/* check conversions number -> integer types */
lua_pushnumber(L, -(lua_Number)0x1234);
if (lua_tointeger(L, -1) != -0x1234 ||
lua_tounsigned(L, -1) != (lua_Unsigned)-0x1234)
luaL_error(L, "bad conversion number->int;"
" must recompile Lua with proper settings");
lua_pop(L, 1);
}
// use clonefunction
#define LOCK(q) while (__sync_lock_test_and_set(&(q)->lock,1)) {}
#define UNLOCK(q) __sync_lock_release(&(q)->lock);
struct codecache {
int lock;
lua_State *L;
};
static struct codecache CC = { 0 , NULL };
static void
clearcache() {
if (CC.L == NULL)
return;
LOCK(&CC)
lua_close(CC.L);
CC.L = luaL_newstate();
UNLOCK(&CC)
}
static void
init() {
CC.lock = 0;
CC.L = luaL_newstate();
}
static const void *
load(const char *key) {
if (CC.L == NULL)
return NULL;
LOCK(&CC)
lua_State *L = CC.L;
lua_pushstring(L, key);
lua_rawget(L, LUA_REGISTRYINDEX);
const void * result = lua_touserdata(L, -1);
lua_pop(L, 1);
UNLOCK(&CC)
return result;
}
static const void *
save(const char *key, const void * proto) {
lua_State *L;
const void * result = NULL;
LOCK(&CC)
if (CC.L == NULL) {
init();
L = CC.L;
} else {
L = CC.L;
lua_pushstring(L, key);
lua_pushvalue(L, -1);
lua_rawget(L, LUA_REGISTRYINDEX);
result = lua_touserdata(L, -1); /* stack: key oldvalue */
if (result == NULL) {
lua_pop(L,1);
lua_pushlightuserdata(L, (void *)proto);
lua_rawset(L, LUA_REGISTRYINDEX);
} else {
lua_pop(L,2);
}
}
UNLOCK(&CC)
return result;
}
LUALIB_API int luaL_loadfilex (lua_State *L, const char *filename,
const char *mode) {
const void * proto = load(filename);
if (proto) {
lua_clonefunction(L, proto);
return LUA_OK;
}
lua_State * eL = luaL_newstate();
if (eL == NULL) {
lua_pushliteral(L, "New state failed");
return LUA_ERRMEM;
}
int err = luaL_loadfilex_(eL, filename, mode);
if (err != LUA_OK) {
size_t sz = 0;
const char * msg = lua_tolstring(eL, -1, &sz);
lua_pushlstring(L, msg, sz);
lua_close(eL);
return err;
}
proto = lua_topointer(eL, -1);
const void * oldv = save(filename, proto);
if (oldv) {
lua_close(eL);
lua_clonefunction(L, oldv);
} else {
lua_clonefunction(L, proto);
/* Never close it. notice: memory leak */
}
return LUA_OK;
}
static int
cache_clear(lua_State *L) {
clearcache();
return 0;
}
LUAMOD_API int luaopen_cache(lua_State *L) {
luaL_Reg l[] = {
{ "clear", cache_clear },
{ NULL, NULL },
};
luaL_newlib(L,l);
lua_getglobal(L, "loadfile");
lua_setfield(L, -2, "loadfile");
return 1;
}