mirror of
https://github.com/lua/lua
synced 2024-12-29 13:49:44 +03:00
993c58fde3
Since commit ca6fe7449a, userdata with uservalues can be gray
and can belong to gray lists ('gclist').
1878 lines
48 KiB
C
1878 lines
48 KiB
C
/*
|
|
** $Id: ltests.c $
|
|
** Internal Module for Debugging of the Lua Implementation
|
|
** See Copyright Notice in lua.h
|
|
*/
|
|
|
|
#define ltests_c
|
|
#define LUA_CORE
|
|
|
|
#include "lprefix.h"
|
|
|
|
|
|
#include <limits.h>
|
|
#include <setjmp.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "lua.h"
|
|
|
|
#include "lapi.h"
|
|
#include "lauxlib.h"
|
|
#include "lcode.h"
|
|
#include "lctype.h"
|
|
#include "ldebug.h"
|
|
#include "ldo.h"
|
|
#include "lfunc.h"
|
|
#include "lmem.h"
|
|
#include "lopcodes.h"
|
|
#include "lopnames.h"
|
|
#include "lstate.h"
|
|
#include "lstring.h"
|
|
#include "ltable.h"
|
|
#include "lualib.h"
|
|
|
|
|
|
|
|
/*
|
|
** The whole module only makes sense with LUA_DEBUG on
|
|
*/
|
|
#if defined(LUA_DEBUG)
|
|
|
|
|
|
void *l_Trick = 0;
|
|
|
|
|
|
#define obj_at(L,k) s2v(L->ci->func + (k))
|
|
|
|
|
|
static int runC (lua_State *L, lua_State *L1, const char *pc);
|
|
|
|
|
|
static void setnameval (lua_State *L, const char *name, int val) {
|
|
lua_pushinteger(L, val);
|
|
lua_setfield(L, -2, name);
|
|
}
|
|
|
|
|
|
static void pushobject (lua_State *L, const TValue *o) {
|
|
setobj2s(L, L->top, o);
|
|
api_incr_top(L);
|
|
}
|
|
|
|
|
|
static void badexit (const char *fmt, const char *s1, const char *s2) {
|
|
fprintf(stderr, fmt, s1);
|
|
if (s2)
|
|
fprintf(stderr, "extra info: %s\n", s2);
|
|
/* avoid assertion failures when exiting */
|
|
l_memcontrol.numblocks = l_memcontrol.total = 0;
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
|
|
static int tpanic (lua_State *L) {
|
|
const char *msg = lua_tostring(L, -1);
|
|
if (msg == NULL) msg = "error object is not a string";
|
|
return (badexit("PANIC: unprotected error in call to Lua API (%s)\n",
|
|
msg, NULL),
|
|
0); /* do not return to Lua */
|
|
}
|
|
|
|
|
|
/*
|
|
** Warning function for tests. First, it concatenates all parts of
|
|
** a warning in buffer 'buff'. Then, it has three modes:
|
|
** - 0.normal: messages starting with '#' are shown on standard output;
|
|
** - other messages abort the tests (they represent real warning
|
|
** conditions; the standard tests should not generate these conditions
|
|
** unexpectedly);
|
|
** - 1.allow: all messages are shown;
|
|
** - 2.store: all warnings go to the global '_WARN';
|
|
*/
|
|
static void warnf (void *ud, const char *msg, int tocont) {
|
|
lua_State *L = cast(lua_State *, ud);
|
|
static char buff[200] = ""; /* should be enough for tests... */
|
|
static int onoff = 0;
|
|
static int mode = 0; /* start in normal mode */
|
|
static int lasttocont = 0;
|
|
if (!lasttocont && !tocont && *msg == '@') { /* control message? */
|
|
if (buff[0] != '\0')
|
|
badexit("Control warning during warning: %s\naborting...\n", msg, buff);
|
|
if (strcmp(msg, "@off") == 0)
|
|
onoff = 0;
|
|
else if (strcmp(msg, "@on") == 0)
|
|
onoff = 1;
|
|
else if (strcmp(msg, "@normal") == 0)
|
|
mode = 0;
|
|
else if (strcmp(msg, "@allow") == 0)
|
|
mode = 1;
|
|
else if (strcmp(msg, "@store") == 0)
|
|
mode = 2;
|
|
else
|
|
badexit("Invalid control warning in test mode: %s\naborting...\n",
|
|
msg, NULL);
|
|
return;
|
|
}
|
|
lasttocont = tocont;
|
|
if (strlen(msg) >= sizeof(buff) - strlen(buff))
|
|
badexit("warnf-buffer overflow (%s)\n", msg, buff);
|
|
strcat(buff, msg); /* add new message to current warning */
|
|
if (!tocont) { /* message finished? */
|
|
lua_unlock(L);
|
|
if (lua_getglobal(L, "_WARN") == LUA_TNIL)
|
|
lua_pop(L, 1); /* ok, no previous unexpected warning */
|
|
else {
|
|
badexit("Unhandled warning in store mode: %s\naborting...\n",
|
|
lua_tostring(L, -1), buff);
|
|
}
|
|
lua_lock(L);
|
|
switch (mode) {
|
|
case 0: { /* normal */
|
|
if (buff[0] != '#' && onoff) /* unexpected warning? */
|
|
badexit("Unexpected warning in test mode: %s\naborting...\n",
|
|
buff, NULL);
|
|
} /* FALLTHROUGH */
|
|
case 1: { /* allow */
|
|
if (onoff)
|
|
fprintf(stderr, "Lua warning: %s\n", buff); /* print warning */
|
|
break;
|
|
}
|
|
case 2: { /* store */
|
|
lua_unlock(L);
|
|
lua_pushstring(L, buff);
|
|
lua_setglobal(L, "_WARN"); /* assign message to global '_WARN' */
|
|
lua_lock(L);
|
|
buff[0] = '\0'; /* prepare buffer for next warning */
|
|
break;
|
|
}
|
|
}
|
|
buff[0] = '\0'; /* prepare buffer for next warning */
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
** {======================================================================
|
|
** Controlled version for realloc.
|
|
** =======================================================================
|
|
*/
|
|
|
|
#define MARK 0x55 /* 01010101 (a nice pattern) */
|
|
|
|
typedef union Header {
|
|
LUAI_MAXALIGN;
|
|
struct {
|
|
size_t size;
|
|
int type;
|
|
} d;
|
|
} Header;
|
|
|
|
|
|
#if !defined(EXTERNMEMCHECK)
|
|
|
|
/* full memory check */
|
|
#define MARKSIZE 16 /* size of marks after each block */
|
|
#define fillmem(mem,size) memset(mem, -MARK, size)
|
|
|
|
#else
|
|
|
|
/* external memory check: don't do it twice */
|
|
#define MARKSIZE 0
|
|
#define fillmem(mem,size) /* empty */
|
|
|
|
#endif
|
|
|
|
|
|
Memcontrol l_memcontrol =
|
|
{0UL, 0UL, 0UL, 0UL, (~0UL), {0UL, 0UL, 0UL, 0UL, 0UL, 0UL, 0UL, 0UL, 0UL}};
|
|
|
|
|
|
static void freeblock (Memcontrol *mc, Header *block) {
|
|
if (block) {
|
|
size_t size = block->d.size;
|
|
int i;
|
|
for (i = 0; i < MARKSIZE; i++) /* check marks after block */
|
|
lua_assert(*(cast_charp(block + 1) + size + i) == MARK);
|
|
mc->objcount[block->d.type]--;
|
|
fillmem(block, sizeof(Header) + size + MARKSIZE); /* erase block */
|
|
free(block); /* actually free block */
|
|
mc->numblocks--; /* update counts */
|
|
mc->total -= size;
|
|
}
|
|
}
|
|
|
|
|
|
void *debug_realloc (void *ud, void *b, size_t oldsize, size_t size) {
|
|
Memcontrol *mc = cast(Memcontrol *, ud);
|
|
Header *block = cast(Header *, b);
|
|
int type;
|
|
if (mc->memlimit == 0) { /* first time? */
|
|
char *limit = getenv("MEMLIMIT"); /* initialize memory limit */
|
|
mc->memlimit = limit ? strtoul(limit, NULL, 10) : ULONG_MAX;
|
|
}
|
|
if (block == NULL) {
|
|
type = (oldsize < LUA_NUMTAGS) ? oldsize : 0;
|
|
oldsize = 0;
|
|
}
|
|
else {
|
|
block--; /* go to real header */
|
|
type = block->d.type;
|
|
lua_assert(oldsize == block->d.size);
|
|
}
|
|
if (size == 0) {
|
|
freeblock(mc, block);
|
|
return NULL;
|
|
}
|
|
if (mc->countlimit != ~0UL && size != oldsize) { /* count limit in use? */
|
|
if (mc->countlimit == 0)
|
|
return NULL; /* fake a memory allocation error */
|
|
mc->countlimit--;
|
|
}
|
|
if (size > oldsize && mc->total+size-oldsize > mc->memlimit)
|
|
return NULL; /* fake a memory allocation error */
|
|
else {
|
|
Header *newblock;
|
|
int i;
|
|
size_t commonsize = (oldsize < size) ? oldsize : size;
|
|
size_t realsize = sizeof(Header) + size + MARKSIZE;
|
|
if (realsize < size) return NULL; /* arithmetic overflow! */
|
|
newblock = cast(Header *, malloc(realsize)); /* alloc a new block */
|
|
if (newblock == NULL)
|
|
return NULL; /* really out of memory? */
|
|
if (block) {
|
|
memcpy(newblock + 1, block + 1, commonsize); /* copy old contents */
|
|
freeblock(mc, block); /* erase (and check) old copy */
|
|
}
|
|
/* initialize new part of the block with something weird */
|
|
fillmem(cast_charp(newblock + 1) + commonsize, size - commonsize);
|
|
/* initialize marks after block */
|
|
for (i = 0; i < MARKSIZE; i++)
|
|
*(cast_charp(newblock + 1) + size + i) = MARK;
|
|
newblock->d.size = size;
|
|
newblock->d.type = type;
|
|
mc->total += size;
|
|
if (mc->total > mc->maxmem)
|
|
mc->maxmem = mc->total;
|
|
mc->numblocks++;
|
|
mc->objcount[type]++;
|
|
return newblock + 1;
|
|
}
|
|
}
|
|
|
|
|
|
/* }====================================================================== */
|
|
|
|
|
|
|
|
/*
|
|
** {======================================================
|
|
** Functions to check memory consistency
|
|
** =======================================================
|
|
*/
|
|
|
|
|
|
/*
|
|
** Check GC invariants. For incremental mode, a black object cannot
|
|
** point to a white one. For generational mode, really old objects
|
|
** cannot point to young objects. Both old1 and touched2 objects
|
|
** cannot point to new objects (but can point to survivals).
|
|
** (Threads and open upvalues, despite being marked "really old",
|
|
** continue to be visited in all collections, and therefore can point to
|
|
** new objects. They, and only they, are old but gray.)
|
|
*/
|
|
static int testobjref1 (global_State *g, GCObject *f, GCObject *t) {
|
|
if (isdead(g,t)) return 0;
|
|
if (issweepphase(g))
|
|
return 1; /* no invariants */
|
|
else if (g->gckind == KGC_INC)
|
|
return !(isblack(f) && iswhite(t)); /* basic incremental invariant */
|
|
else { /* generational mode */
|
|
if ((getage(f) == G_OLD && isblack(f)) && !isold(t))
|
|
return 0;
|
|
if (((getage(f) == G_OLD1 || getage(f) == G_TOUCHED2) && isblack(f)) &&
|
|
getage(t) == G_NEW)
|
|
return 0;
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
|
|
static void printobj (global_State *g, GCObject *o) {
|
|
printf("||%s(%p)-%c%c(%02X)||",
|
|
ttypename(novariant(o->tt)), (void *)o,
|
|
isdead(g,o) ? 'd' : isblack(o) ? 'b' : iswhite(o) ? 'w' : 'g',
|
|
"ns01oTt"[getage(o)], o->marked);
|
|
if (o->tt == LUA_VSHRSTR || o->tt == LUA_VLNGSTR)
|
|
printf(" '%s'", getstr(gco2ts(o)));
|
|
}
|
|
|
|
|
|
static int testobjref (global_State *g, GCObject *f, GCObject *t) {
|
|
int r1 = testobjref1(g, f, t);
|
|
if (!r1) {
|
|
printf("%d(%02X) - ", g->gcstate, g->currentwhite);
|
|
printobj(g, f);
|
|
printf(" -> ");
|
|
printobj(g, t);
|
|
printf("\n");
|
|
}
|
|
return r1;
|
|
}
|
|
|
|
#define checkobjref(g,f,t) \
|
|
{ if (t) lua_longassert(testobjref(g,f,obj2gco(t))); }
|
|
|
|
|
|
static void checkvalref (global_State *g, GCObject *f, const TValue *t) {
|
|
lua_assert(!iscollectable(t) ||
|
|
(righttt(t) && testobjref(g, f, gcvalue(t))));
|
|
}
|
|
|
|
|
|
static void checktable (global_State *g, Table *h) {
|
|
unsigned int i;
|
|
unsigned int asize = luaH_realasize(h);
|
|
Node *n, *limit = gnode(h, sizenode(h));
|
|
GCObject *hgc = obj2gco(h);
|
|
checkobjref(g, hgc, h->metatable);
|
|
for (i = 0; i < asize; i++)
|
|
checkvalref(g, hgc, &h->array[i]);
|
|
for (n = gnode(h, 0); n < limit; n++) {
|
|
if (!isempty(gval(n))) {
|
|
TValue k;
|
|
getnodekey(g->mainthread, &k, n);
|
|
lua_assert(!keyisnil(n));
|
|
checkvalref(g, hgc, &k);
|
|
checkvalref(g, hgc, gval(n));
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void checkudata (global_State *g, Udata *u) {
|
|
int i;
|
|
GCObject *hgc = obj2gco(u);
|
|
checkobjref(g, hgc, u->metatable);
|
|
for (i = 0; i < u->nuvalue; i++)
|
|
checkvalref(g, hgc, &u->uv[i].uv);
|
|
}
|
|
|
|
|
|
/*
|
|
** All marks are conditional because a GC may happen while the
|
|
** prototype is still being created
|
|
*/
|
|
static void checkproto (global_State *g, Proto *f) {
|
|
int i;
|
|
GCObject *fgc = obj2gco(f);
|
|
checkobjref(g, fgc, f->source);
|
|
for (i=0; i<f->sizek; i++) {
|
|
if (ttisstring(f->k + i))
|
|
checkobjref(g, fgc, tsvalue(f->k + i));
|
|
}
|
|
for (i=0; i<f->sizeupvalues; i++)
|
|
checkobjref(g, fgc, f->upvalues[i].name);
|
|
for (i=0; i<f->sizep; i++)
|
|
checkobjref(g, fgc, f->p[i]);
|
|
for (i=0; i<f->sizelocvars; i++)
|
|
checkobjref(g, fgc, f->locvars[i].varname);
|
|
}
|
|
|
|
|
|
static void checkCclosure (global_State *g, CClosure *cl) {
|
|
GCObject *clgc = obj2gco(cl);
|
|
int i;
|
|
for (i = 0; i < cl->nupvalues; i++)
|
|
checkvalref(g, clgc, &cl->upvalue[i]);
|
|
}
|
|
|
|
|
|
static void checkLclosure (global_State *g, LClosure *cl) {
|
|
GCObject *clgc = obj2gco(cl);
|
|
int i;
|
|
checkobjref(g, clgc, cl->p);
|
|
for (i=0; i<cl->nupvalues; i++) {
|
|
UpVal *uv = cl->upvals[i];
|
|
if (uv) {
|
|
checkobjref(g, clgc, uv);
|
|
if (!upisopen(uv))
|
|
checkvalref(g, obj2gco(uv), uv->v);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static int lua_checkpc (CallInfo *ci) {
|
|
if (!isLua(ci)) return 1;
|
|
else {
|
|
StkId f = ci->func;
|
|
Proto *p = clLvalue(s2v(f))->p;
|
|
return p->code <= ci->u.l.savedpc &&
|
|
ci->u.l.savedpc <= p->code + p->sizecode;
|
|
}
|
|
}
|
|
|
|
|
|
static void checkstack (global_State *g, lua_State *L1) {
|
|
StkId o;
|
|
CallInfo *ci;
|
|
UpVal *uv;
|
|
lua_assert(!isdead(g, L1));
|
|
if (L1->stack == NULL) { /* incomplete thread? */
|
|
lua_assert(L1->stacksize == 0 && L1->openupval == NULL &&
|
|
L1->ci == NULL);
|
|
return;
|
|
}
|
|
for (uv = L1->openupval; uv != NULL; uv = uv->u.open.next)
|
|
lua_assert(upisopen(uv)); /* must be open */
|
|
for (ci = L1->ci; ci != NULL; ci = ci->previous) {
|
|
lua_assert(ci->top <= L1->stack_last);
|
|
lua_assert(lua_checkpc(ci));
|
|
}
|
|
for (o = L1->stack; o < L1->stack_last + EXTRA_STACK; o++)
|
|
checkliveness(L1, s2v(o)); /* entire stack must have valid values */
|
|
}
|
|
|
|
|
|
static void checkrefs (global_State *g, GCObject *o) {
|
|
switch (o->tt) {
|
|
case LUA_VUSERDATA: {
|
|
checkudata(g, gco2u(o));
|
|
break;
|
|
}
|
|
case LUA_VUPVAL: {
|
|
checkvalref(g, o, gco2upv(o)->v);
|
|
break;
|
|
}
|
|
case LUA_VTABLE: {
|
|
checktable(g, gco2t(o));
|
|
break;
|
|
}
|
|
case LUA_VTHREAD: {
|
|
checkstack(g, gco2th(o));
|
|
break;
|
|
}
|
|
case LUA_VLCL: {
|
|
checkLclosure(g, gco2lcl(o));
|
|
break;
|
|
}
|
|
case LUA_VCCL: {
|
|
checkCclosure(g, gco2ccl(o));
|
|
break;
|
|
}
|
|
case LUA_VPROTO: {
|
|
checkproto(g, gco2p(o));
|
|
break;
|
|
}
|
|
case LUA_VSHRSTR:
|
|
case LUA_VLNGSTR: {
|
|
lua_assert(!isgray(o)); /* strings are never gray */
|
|
break;
|
|
}
|
|
default: lua_assert(0);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
** Check consistency of an object:
|
|
** - Dead objects can only happen in the 'allgc' list during a sweep
|
|
** phase (controlled by the caller through 'maybedead').
|
|
** - During pause, all objects must be white.
|
|
** - In generational mode:
|
|
** * objects must be old enough for their lists ('listage').
|
|
** * old objects cannot be white.
|
|
** * old objects must be black, except for 'touched1', 'old0',
|
|
** threads, and open upvalues.
|
|
*/
|
|
static void checkobject (global_State *g, GCObject *o, int maybedead,
|
|
int listage) {
|
|
if (isdead(g, o))
|
|
lua_assert(maybedead);
|
|
else {
|
|
lua_assert(g->gcstate != GCSpause || iswhite(o));
|
|
if (g->gckind == KGC_GEN) { /* generational mode? */
|
|
lua_assert(getage(o) >= listage);
|
|
lua_assert(!iswhite(o) || !isold(o));
|
|
if (isold(o)) {
|
|
lua_assert(isblack(o) ||
|
|
getage(o) == G_TOUCHED1 ||
|
|
getage(o) == G_OLD0 ||
|
|
o->tt == LUA_VTHREAD ||
|
|
(o->tt == LUA_VUPVAL && upisopen(gco2upv(o))));
|
|
}
|
|
}
|
|
checkrefs(g, o);
|
|
}
|
|
}
|
|
|
|
|
|
static void checkgraylist (global_State *g, GCObject *o) {
|
|
((void)g); /* better to keep it available if we need to print an object */
|
|
while (o) {
|
|
lua_assert(isgray(o) || getage(o) == G_TOUCHED2);
|
|
switch (o->tt) {
|
|
case LUA_VTABLE: o = gco2t(o)->gclist; break;
|
|
case LUA_VLCL: o = gco2lcl(o)->gclist; break;
|
|
case LUA_VCCL: o = gco2ccl(o)->gclist; break;
|
|
case LUA_VTHREAD: o = gco2th(o)->gclist; break;
|
|
case LUA_VPROTO: o = gco2p(o)->gclist; break;
|
|
case LUA_VUSERDATA:
|
|
lua_assert(gco2u(o)->nuvalue > 0);
|
|
o = gco2u(o)->gclist;
|
|
break;
|
|
default: lua_assert(0); /* other objects cannot be in a gray list */
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
** Check objects in gray lists.
|
|
*/
|
|
static void checkgrays (global_State *g) {
|
|
if (!keepinvariant(g)) return;
|
|
checkgraylist(g, g->gray);
|
|
checkgraylist(g, g->grayagain);
|
|
checkgraylist(g, g->weak);
|
|
checkgraylist(g, g->ephemeron);
|
|
}
|
|
|
|
|
|
static void checklist (global_State *g, int maybedead, int tof,
|
|
GCObject *newl, GCObject *survival, GCObject *old, GCObject *reallyold) {
|
|
GCObject *o;
|
|
for (o = newl; o != survival; o = o->next) {
|
|
checkobject(g, o, maybedead, G_NEW);
|
|
lua_assert(!tof == !tofinalize(o));
|
|
}
|
|
for (o = survival; o != old; o = o->next) {
|
|
checkobject(g, o, 0, G_SURVIVAL);
|
|
lua_assert(!tof == !tofinalize(o));
|
|
}
|
|
for (o = old; o != reallyold; o = o->next) {
|
|
checkobject(g, o, 0, G_OLD1);
|
|
lua_assert(!tof == !tofinalize(o));
|
|
}
|
|
for (o = reallyold; o != NULL; o = o->next) {
|
|
checkobject(g, o, 0, G_OLD);
|
|
lua_assert(!tof == !tofinalize(o));
|
|
}
|
|
}
|
|
|
|
|
|
int lua_checkmemory (lua_State *L) {
|
|
global_State *g = G(L);
|
|
GCObject *o;
|
|
int maybedead;
|
|
if (keepinvariant(g)) {
|
|
lua_assert(!iswhite(g->mainthread));
|
|
lua_assert(!iswhite(gcvalue(&g->l_registry)));
|
|
}
|
|
lua_assert(!isdead(g, gcvalue(&g->l_registry)));
|
|
lua_assert(g->sweepgc == NULL || issweepphase(g));
|
|
checkgrays(g);
|
|
|
|
/* check 'fixedgc' list */
|
|
for (o = g->fixedgc; o != NULL; o = o->next) {
|
|
lua_assert(o->tt == LUA_VSHRSTR && isgray(o) && getage(o) == G_OLD);
|
|
}
|
|
|
|
/* check 'allgc' list */
|
|
maybedead = (GCSatomic < g->gcstate && g->gcstate <= GCSswpallgc);
|
|
checklist(g, maybedead, 0, g->allgc, g->survival, g->old, g->reallyold);
|
|
|
|
/* check 'finobj' list */
|
|
checklist(g, 0, 1, g->finobj, g->finobjsur, g->finobjold, g->finobjrold);
|
|
|
|
/* check 'tobefnz' list */
|
|
for (o = g->tobefnz; o != NULL; o = o->next) {
|
|
checkobject(g, o, 0, G_NEW);
|
|
lua_assert(tofinalize(o));
|
|
lua_assert(o->tt == LUA_VUSERDATA || o->tt == LUA_VTABLE);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* }====================================================== */
|
|
|
|
|
|
|
|
/*
|
|
** {======================================================
|
|
** Disassembler
|
|
** =======================================================
|
|
*/
|
|
|
|
|
|
static char *buildop (Proto *p, int pc, char *buff) {
|
|
char *obuff = buff;
|
|
Instruction i = p->code[pc];
|
|
OpCode o = GET_OPCODE(i);
|
|
const char *name = opnames[o];
|
|
int line = luaG_getfuncline(p, pc);
|
|
int lineinfo = (p->lineinfo != NULL) ? p->lineinfo[pc] : 0;
|
|
if (lineinfo == ABSLINEINFO)
|
|
buff += sprintf(buff, "(__");
|
|
else
|
|
buff += sprintf(buff, "(%2d", lineinfo);
|
|
buff += sprintf(buff, " - %4d) %4d - ", line, pc);
|
|
switch (getOpMode(o)) {
|
|
case iABC:
|
|
sprintf(buff, "%-12s%4d %4d %4d%s", name,
|
|
GETARG_A(i), GETARG_B(i), GETARG_C(i),
|
|
GETARG_k(i) ? " (k)" : "");
|
|
break;
|
|
case iABx:
|
|
sprintf(buff, "%-12s%4d %4d", name, GETARG_A(i), GETARG_Bx(i));
|
|
break;
|
|
case iAsBx:
|
|
sprintf(buff, "%-12s%4d %4d", name, GETARG_A(i), GETARG_sBx(i));
|
|
break;
|
|
case iAx:
|
|
sprintf(buff, "%-12s%4d", name, GETARG_Ax(i));
|
|
break;
|
|
case isJ:
|
|
sprintf(buff, "%-12s%4d", name, GETARG_sJ(i));
|
|
break;
|
|
}
|
|
return obuff;
|
|
}
|
|
|
|
|
|
#if 0
|
|
void luaI_printcode (Proto *pt, int size) {
|
|
int pc;
|
|
for (pc=0; pc<size; pc++) {
|
|
char buff[100];
|
|
printf("%s\n", buildop(pt, pc, buff));
|
|
}
|
|
printf("-------\n");
|
|
}
|
|
|
|
|
|
void luaI_printinst (Proto *pt, int pc) {
|
|
char buff[100];
|
|
printf("%s\n", buildop(pt, pc, buff));
|
|
}
|
|
#endif
|
|
|
|
|
|
static int listcode (lua_State *L) {
|
|
int pc;
|
|
Proto *p;
|
|
luaL_argcheck(L, lua_isfunction(L, 1) && !lua_iscfunction(L, 1),
|
|
1, "Lua function expected");
|
|
p = getproto(obj_at(L, 1));
|
|
lua_newtable(L);
|
|
setnameval(L, "maxstack", p->maxstacksize);
|
|
setnameval(L, "numparams", p->numparams);
|
|
for (pc=0; pc<p->sizecode; pc++) {
|
|
char buff[100];
|
|
lua_pushinteger(L, pc+1);
|
|
lua_pushstring(L, buildop(p, pc, buff));
|
|
lua_settable(L, -3);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int printcode (lua_State *L) {
|
|
int pc;
|
|
Proto *p;
|
|
luaL_argcheck(L, lua_isfunction(L, 1) && !lua_iscfunction(L, 1),
|
|
1, "Lua function expected");
|
|
p = getproto(obj_at(L, 1));
|
|
printf("maxstack: %d\n", p->maxstacksize);
|
|
printf("numparams: %d\n", p->numparams);
|
|
for (pc=0; pc<p->sizecode; pc++) {
|
|
char buff[100];
|
|
printf("%s\n", buildop(p, pc, buff));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int listk (lua_State *L) {
|
|
Proto *p;
|
|
int i;
|
|
luaL_argcheck(L, lua_isfunction(L, 1) && !lua_iscfunction(L, 1),
|
|
1, "Lua function expected");
|
|
p = getproto(obj_at(L, 1));
|
|
lua_createtable(L, p->sizek, 0);
|
|
for (i=0; i<p->sizek; i++) {
|
|
pushobject(L, p->k+i);
|
|
lua_rawseti(L, -2, i+1);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int listabslineinfo (lua_State *L) {
|
|
Proto *p;
|
|
int i;
|
|
luaL_argcheck(L, lua_isfunction(L, 1) && !lua_iscfunction(L, 1),
|
|
1, "Lua function expected");
|
|
p = getproto(obj_at(L, 1));
|
|
luaL_argcheck(L, p->abslineinfo != NULL, 1, "function has no debug info");
|
|
lua_createtable(L, 2 * p->sizeabslineinfo, 0);
|
|
for (i=0; i < p->sizeabslineinfo; i++) {
|
|
lua_pushinteger(L, p->abslineinfo[i].pc);
|
|
lua_rawseti(L, -2, 2 * i + 1);
|
|
lua_pushinteger(L, p->abslineinfo[i].line);
|
|
lua_rawseti(L, -2, 2 * i + 2);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int listlocals (lua_State *L) {
|
|
Proto *p;
|
|
int pc = cast_int(luaL_checkinteger(L, 2)) - 1;
|
|
int i = 0;
|
|
const char *name;
|
|
luaL_argcheck(L, lua_isfunction(L, 1) && !lua_iscfunction(L, 1),
|
|
1, "Lua function expected");
|
|
p = getproto(obj_at(L, 1));
|
|
while ((name = luaF_getlocalname(p, ++i, pc)) != NULL)
|
|
lua_pushstring(L, name);
|
|
return i-1;
|
|
}
|
|
|
|
/* }====================================================== */
|
|
|
|
|
|
|
|
static void printstack (lua_State *L) {
|
|
int i;
|
|
int n = lua_gettop(L);
|
|
for (i = 1; i <= n; i++) {
|
|
printf("%3d: %s\n", i, luaL_tolstring(L, i, NULL));
|
|
lua_pop(L, 1);
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
|
|
static int get_limits (lua_State *L) {
|
|
lua_createtable(L, 0, 6);
|
|
setnameval(L, "IS32INT", LUAI_IS32INT);
|
|
setnameval(L, "MAXARG_Ax", MAXARG_Ax);
|
|
setnameval(L, "MAXARG_Bx", MAXARG_Bx);
|
|
setnameval(L, "OFFSET_sBx", OFFSET_sBx);
|
|
setnameval(L, "LFPF", LFIELDS_PER_FLUSH);
|
|
setnameval(L, "NUM_OPCODES", NUM_OPCODES);
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int mem_query (lua_State *L) {
|
|
if (lua_isnone(L, 1)) {
|
|
lua_pushinteger(L, l_memcontrol.total);
|
|
lua_pushinteger(L, l_memcontrol.numblocks);
|
|
lua_pushinteger(L, l_memcontrol.maxmem);
|
|
return 3;
|
|
}
|
|
else if (lua_isnumber(L, 1)) {
|
|
unsigned long limit = cast(unsigned long, luaL_checkinteger(L, 1));
|
|
if (limit == 0) limit = ULONG_MAX;
|
|
l_memcontrol.memlimit = limit;
|
|
return 0;
|
|
}
|
|
else {
|
|
const char *t = luaL_checkstring(L, 1);
|
|
int i;
|
|
for (i = LUA_NUMTAGS - 1; i >= 0; i--) {
|
|
if (strcmp(t, ttypename(i)) == 0) {
|
|
lua_pushinteger(L, l_memcontrol.objcount[i]);
|
|
return 1;
|
|
}
|
|
}
|
|
return luaL_error(L, "unknown type '%s'", t);
|
|
}
|
|
}
|
|
|
|
|
|
static int alloc_count (lua_State *L) {
|
|
if (lua_isnone(L, 1))
|
|
l_memcontrol.countlimit = ~0L;
|
|
else
|
|
l_memcontrol.countlimit = luaL_checkinteger(L, 1);
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int settrick (lua_State *L) {
|
|
if (ttisnil(obj_at(L, 1)))
|
|
l_Trick = NULL;
|
|
else
|
|
l_Trick = gcvalue(obj_at(L, 1));
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int gc_color (lua_State *L) {
|
|
TValue *o;
|
|
luaL_checkany(L, 1);
|
|
o = obj_at(L, 1);
|
|
if (!iscollectable(o))
|
|
lua_pushstring(L, "no collectable");
|
|
else {
|
|
GCObject *obj = gcvalue(o);
|
|
lua_pushstring(L, isdead(G(L), obj) ? "dead" :
|
|
iswhite(obj) ? "white" :
|
|
isblack(obj) ? "black" : "gray");
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int gc_age (lua_State *L) {
|
|
TValue *o;
|
|
luaL_checkany(L, 1);
|
|
o = obj_at(L, 1);
|
|
if (!iscollectable(o))
|
|
lua_pushstring(L, "no collectable");
|
|
else {
|
|
static const char *gennames[] = {"new", "survival", "old0", "old1",
|
|
"old", "touched1", "touched2"};
|
|
GCObject *obj = gcvalue(o);
|
|
lua_pushstring(L, gennames[getage(obj)]);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int gc_printobj (lua_State *L) {
|
|
TValue *o;
|
|
luaL_checkany(L, 1);
|
|
o = obj_at(L, 1);
|
|
if (!iscollectable(o))
|
|
printf("no collectable\n");
|
|
else {
|
|
GCObject *obj = gcvalue(o);
|
|
printobj(G(L), obj);
|
|
printf("\n");
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int gc_state (lua_State *L) {
|
|
static const char *statenames[] = {
|
|
"propagate", "atomic", "enteratomic", "sweepallgc", "sweepfinobj",
|
|
"sweeptobefnz", "sweepend", "callfin", "pause", ""};
|
|
static const int states[] = {
|
|
GCSpropagate, GCSenteratomic, GCSatomic, GCSswpallgc, GCSswpfinobj,
|
|
GCSswptobefnz, GCSswpend, GCScallfin, GCSpause, -1};
|
|
int option = states[luaL_checkoption(L, 1, "", statenames)];
|
|
if (option == -1) {
|
|
lua_pushstring(L, statenames[G(L)->gcstate]);
|
|
return 1;
|
|
}
|
|
else {
|
|
global_State *g = G(L);
|
|
if (G(L)->gckind == KGC_GEN)
|
|
luaL_error(L, "cannot change states in generational mode");
|
|
lua_lock(L);
|
|
if (option < g->gcstate) { /* must cross 'pause'? */
|
|
luaC_runtilstate(L, bitmask(GCSpause)); /* run until pause */
|
|
}
|
|
luaC_runtilstate(L, bitmask(option));
|
|
lua_assert(G(L)->gcstate == option);
|
|
lua_unlock(L);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
|
|
static int hash_query (lua_State *L) {
|
|
if (lua_isnone(L, 2)) {
|
|
luaL_argcheck(L, lua_type(L, 1) == LUA_TSTRING, 1, "string expected");
|
|
lua_pushinteger(L, tsvalue(obj_at(L, 1))->hash);
|
|
}
|
|
else {
|
|
TValue *o = obj_at(L, 1);
|
|
Table *t;
|
|
luaL_checktype(L, 2, LUA_TTABLE);
|
|
t = hvalue(obj_at(L, 2));
|
|
lua_pushinteger(L, luaH_mainposition(t, o) - t->node);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int stacklevel (lua_State *L) {
|
|
unsigned long a = 0;
|
|
lua_pushinteger(L, (L->top - L->stack));
|
|
lua_pushinteger(L, (L->stack_last - L->stack));
|
|
lua_pushinteger(L, L->nCcalls);
|
|
lua_pushinteger(L, L->nci);
|
|
lua_pushinteger(L, (unsigned long)&a);
|
|
return 5;
|
|
}
|
|
|
|
|
|
static int table_query (lua_State *L) {
|
|
const Table *t;
|
|
int i = cast_int(luaL_optinteger(L, 2, -1));
|
|
unsigned int asize;
|
|
luaL_checktype(L, 1, LUA_TTABLE);
|
|
t = hvalue(obj_at(L, 1));
|
|
asize = luaH_realasize(t);
|
|
if (i == -1) {
|
|
lua_pushinteger(L, asize);
|
|
lua_pushinteger(L, allocsizenode(t));
|
|
lua_pushinteger(L, isdummy(t) ? 0 : t->lastfree - t->node);
|
|
lua_pushinteger(L, t->alimit);
|
|
return 4;
|
|
}
|
|
else if ((unsigned int)i < asize) {
|
|
lua_pushinteger(L, i);
|
|
pushobject(L, &t->array[i]);
|
|
lua_pushnil(L);
|
|
}
|
|
else if ((i -= asize) < sizenode(t)) {
|
|
TValue k;
|
|
getnodekey(L, &k, gnode(t, i));
|
|
if (!isempty(gval(gnode(t, i))) ||
|
|
ttisnil(&k) ||
|
|
ttisnumber(&k)) {
|
|
pushobject(L, &k);
|
|
}
|
|
else
|
|
lua_pushliteral(L, "<undef>");
|
|
pushobject(L, gval(gnode(t, i)));
|
|
if (gnext(&t->node[i]) != 0)
|
|
lua_pushinteger(L, gnext(&t->node[i]));
|
|
else
|
|
lua_pushnil(L);
|
|
}
|
|
return 3;
|
|
}
|
|
|
|
|
|
static int string_query (lua_State *L) {
|
|
stringtable *tb = &G(L)->strt;
|
|
int s = cast_int(luaL_optinteger(L, 1, 0)) - 1;
|
|
if (s == -1) {
|
|
lua_pushinteger(L ,tb->size);
|
|
lua_pushinteger(L ,tb->nuse);
|
|
return 2;
|
|
}
|
|
else if (s < tb->size) {
|
|
TString *ts;
|
|
int n = 0;
|
|
for (ts = tb->hash[s]; ts != NULL; ts = ts->u.hnext) {
|
|
setsvalue2s(L, L->top, ts);
|
|
api_incr_top(L);
|
|
n++;
|
|
}
|
|
return n;
|
|
}
|
|
else return 0;
|
|
}
|
|
|
|
|
|
static int tref (lua_State *L) {
|
|
int level = lua_gettop(L);
|
|
luaL_checkany(L, 1);
|
|
lua_pushvalue(L, 1);
|
|
lua_pushinteger(L, luaL_ref(L, LUA_REGISTRYINDEX));
|
|
lua_assert(lua_gettop(L) == level+1); /* +1 for result */
|
|
return 1;
|
|
}
|
|
|
|
static int getref (lua_State *L) {
|
|
int level = lua_gettop(L);
|
|
lua_rawgeti(L, LUA_REGISTRYINDEX, luaL_checkinteger(L, 1));
|
|
lua_assert(lua_gettop(L) == level+1);
|
|
return 1;
|
|
}
|
|
|
|
static int unref (lua_State *L) {
|
|
int level = lua_gettop(L);
|
|
luaL_unref(L, LUA_REGISTRYINDEX, cast_int(luaL_checkinteger(L, 1)));
|
|
lua_assert(lua_gettop(L) == level);
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int upvalue (lua_State *L) {
|
|
int n = cast_int(luaL_checkinteger(L, 2));
|
|
luaL_checktype(L, 1, LUA_TFUNCTION);
|
|
if (lua_isnone(L, 3)) {
|
|
const char *name = lua_getupvalue(L, 1, n);
|
|
if (name == NULL) return 0;
|
|
lua_pushstring(L, name);
|
|
return 2;
|
|
}
|
|
else {
|
|
const char *name = lua_setupvalue(L, 1, n);
|
|
lua_pushstring(L, name);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
|
|
static int newuserdata (lua_State *L) {
|
|
size_t size = cast_sizet(luaL_optinteger(L, 1, 0));
|
|
int nuv = luaL_optinteger(L, 2, 0);
|
|
char *p = cast_charp(lua_newuserdatauv(L, size, nuv));
|
|
while (size--) *p++ = '\0';
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int pushuserdata (lua_State *L) {
|
|
lua_Integer u = luaL_checkinteger(L, 1);
|
|
lua_pushlightuserdata(L, cast_voidp(cast_sizet(u)));
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int udataval (lua_State *L) {
|
|
lua_pushinteger(L, cast(long, lua_touserdata(L, 1)));
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int doonnewstack (lua_State *L) {
|
|
lua_State *L1 = lua_newthread(L);
|
|
size_t l;
|
|
const char *s = luaL_checklstring(L, 1, &l);
|
|
int status = luaL_loadbuffer(L1, s, l, s);
|
|
if (status == LUA_OK)
|
|
status = lua_pcall(L1, 0, 0, 0);
|
|
lua_pushinteger(L, status);
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int s2d (lua_State *L) {
|
|
lua_pushnumber(L, cast_num(*cast(const double *, luaL_checkstring(L, 1))));
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int d2s (lua_State *L) {
|
|
double d = cast(double, luaL_checknumber(L, 1));
|
|
lua_pushlstring(L, cast_charp(&d), sizeof(d));
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int num2int (lua_State *L) {
|
|
lua_pushinteger(L, lua_tointeger(L, 1));
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int newstate (lua_State *L) {
|
|
void *ud;
|
|
lua_Alloc f = lua_getallocf(L, &ud);
|
|
lua_State *L1 = lua_newstate(f, ud);
|
|
if (L1) {
|
|
lua_atpanic(L1, tpanic);
|
|
lua_pushlightuserdata(L, L1);
|
|
}
|
|
else
|
|
lua_pushnil(L);
|
|
return 1;
|
|
}
|
|
|
|
|
|
static lua_State *getstate (lua_State *L) {
|
|
lua_State *L1 = cast(lua_State *, lua_touserdata(L, 1));
|
|
luaL_argcheck(L, L1 != NULL, 1, "state expected");
|
|
return L1;
|
|
}
|
|
|
|
|
|
static int loadlib (lua_State *L) {
|
|
static const luaL_Reg libs[] = {
|
|
{LUA_GNAME, luaopen_base},
|
|
{"coroutine", luaopen_coroutine},
|
|
{"debug", luaopen_debug},
|
|
{"io", luaopen_io},
|
|
{"os", luaopen_os},
|
|
{"math", luaopen_math},
|
|
{"string", luaopen_string},
|
|
{"table", luaopen_table},
|
|
{"T", luaB_opentests},
|
|
{NULL, NULL}
|
|
};
|
|
lua_State *L1 = getstate(L);
|
|
int i;
|
|
luaL_requiref(L1, "package", luaopen_package, 0);
|
|
lua_assert(lua_type(L1, -1) == LUA_TTABLE);
|
|
/* 'requiref' should not reload module already loaded... */
|
|
luaL_requiref(L1, "package", NULL, 1); /* seg. fault if it reloads */
|
|
/* ...but should return the same module */
|
|
lua_assert(lua_compare(L1, -1, -2, LUA_OPEQ));
|
|
luaL_getsubtable(L1, LUA_REGISTRYINDEX, LUA_PRELOAD_TABLE);
|
|
for (i = 0; libs[i].name; i++) {
|
|
lua_pushcfunction(L1, libs[i].func);
|
|
lua_setfield(L1, -2, libs[i].name);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int closestate (lua_State *L) {
|
|
lua_State *L1 = getstate(L);
|
|
lua_close(L1);
|
|
return 0;
|
|
}
|
|
|
|
static int doremote (lua_State *L) {
|
|
lua_State *L1 = getstate(L);
|
|
size_t lcode;
|
|
const char *code = luaL_checklstring(L, 2, &lcode);
|
|
int status;
|
|
lua_settop(L1, 0);
|
|
status = luaL_loadbuffer(L1, code, lcode, code);
|
|
if (status == LUA_OK)
|
|
status = lua_pcall(L1, 0, LUA_MULTRET, 0);
|
|
if (status != LUA_OK) {
|
|
lua_pushnil(L);
|
|
lua_pushstring(L, lua_tostring(L1, -1));
|
|
lua_pushinteger(L, status);
|
|
return 3;
|
|
}
|
|
else {
|
|
int i = 0;
|
|
while (!lua_isnone(L1, ++i))
|
|
lua_pushstring(L, lua_tostring(L1, i));
|
|
lua_pop(L1, i-1);
|
|
return i-1;
|
|
}
|
|
}
|
|
|
|
|
|
static int log2_aux (lua_State *L) {
|
|
unsigned int x = (unsigned int)luaL_checkinteger(L, 1);
|
|
lua_pushinteger(L, luaO_ceillog2(x));
|
|
return 1;
|
|
}
|
|
|
|
|
|
struct Aux { jmp_buf jb; const char *paniccode; lua_State *L; };
|
|
|
|
/*
|
|
** does a long-jump back to "main program".
|
|
*/
|
|
static int panicback (lua_State *L) {
|
|
struct Aux *b;
|
|
lua_checkstack(L, 1); /* open space for 'Aux' struct */
|
|
lua_getfield(L, LUA_REGISTRYINDEX, "_jmpbuf"); /* get 'Aux' struct */
|
|
b = (struct Aux *)lua_touserdata(L, -1);
|
|
lua_pop(L, 1); /* remove 'Aux' struct */
|
|
runC(b->L, L, b->paniccode); /* run optional panic code */
|
|
longjmp(b->jb, 1);
|
|
return 1; /* to avoid warnings */
|
|
}
|
|
|
|
static int checkpanic (lua_State *L) {
|
|
struct Aux b;
|
|
void *ud;
|
|
lua_State *L1;
|
|
const char *code = luaL_checkstring(L, 1);
|
|
lua_Alloc f = lua_getallocf(L, &ud);
|
|
b.paniccode = luaL_optstring(L, 2, "");
|
|
b.L = L;
|
|
L1 = lua_newstate(f, ud); /* create new state */
|
|
if (L1 == NULL) { /* error? */
|
|
lua_pushnil(L);
|
|
return 1;
|
|
}
|
|
lua_atpanic(L1, panicback); /* set its panic function */
|
|
lua_pushlightuserdata(L1, &b);
|
|
lua_setfield(L1, LUA_REGISTRYINDEX, "_jmpbuf"); /* store 'Aux' struct */
|
|
if (setjmp(b.jb) == 0) { /* set jump buffer */
|
|
runC(L, L1, code); /* run code unprotected */
|
|
lua_pushliteral(L, "no errors");
|
|
}
|
|
else { /* error handling */
|
|
/* move error message to original state */
|
|
lua_pushstring(L, lua_tostring(L1, -1));
|
|
}
|
|
lua_close(L1);
|
|
return 1;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
** {====================================================================
|
|
** function to test the API with C. It interprets a kind of assembler
|
|
** language with calls to the API, so the test can be driven by Lua code
|
|
** =====================================================================
|
|
*/
|
|
|
|
|
|
static void sethookaux (lua_State *L, int mask, int count, const char *code);
|
|
|
|
static const char *const delimits = " \t\n,;";
|
|
|
|
static void skip (const char **pc) {
|
|
for (;;) {
|
|
if (**pc != '\0' && strchr(delimits, **pc)) (*pc)++;
|
|
else if (**pc == '#') { /* comment? */
|
|
while (**pc != '\n' && **pc != '\0') (*pc)++; /* until end-of-line */
|
|
}
|
|
else break;
|
|
}
|
|
}
|
|
|
|
static int getnum_aux (lua_State *L, lua_State *L1, const char **pc) {
|
|
int res = 0;
|
|
int sig = 1;
|
|
skip(pc);
|
|
if (**pc == '.') {
|
|
res = cast_int(lua_tointeger(L1, -1));
|
|
lua_pop(L1, 1);
|
|
(*pc)++;
|
|
return res;
|
|
}
|
|
else if (**pc == '*') {
|
|
res = lua_gettop(L1);
|
|
(*pc)++;
|
|
return res;
|
|
}
|
|
else if (**pc == '-') {
|
|
sig = -1;
|
|
(*pc)++;
|
|
}
|
|
if (!lisdigit(cast_uchar(**pc)))
|
|
luaL_error(L, "number expected (%s)", *pc);
|
|
while (lisdigit(cast_uchar(**pc))) res = res*10 + (*(*pc)++) - '0';
|
|
return sig*res;
|
|
}
|
|
|
|
static const char *getstring_aux (lua_State *L, char *buff, const char **pc) {
|
|
int i = 0;
|
|
skip(pc);
|
|
if (**pc == '"' || **pc == '\'') { /* quoted string? */
|
|
int quote = *(*pc)++;
|
|
while (**pc != quote) {
|
|
if (**pc == '\0') luaL_error(L, "unfinished string in C script");
|
|
buff[i++] = *(*pc)++;
|
|
}
|
|
(*pc)++;
|
|
}
|
|
else {
|
|
while (**pc != '\0' && !strchr(delimits, **pc))
|
|
buff[i++] = *(*pc)++;
|
|
}
|
|
buff[i] = '\0';
|
|
return buff;
|
|
}
|
|
|
|
|
|
static int getindex_aux (lua_State *L, lua_State *L1, const char **pc) {
|
|
skip(pc);
|
|
switch (*(*pc)++) {
|
|
case 'R': return LUA_REGISTRYINDEX;
|
|
case 'G': return luaL_error(L, "deprecated index 'G'");
|
|
case 'U': return lua_upvalueindex(getnum_aux(L, L1, pc));
|
|
default: (*pc)--; return getnum_aux(L, L1, pc);
|
|
}
|
|
}
|
|
|
|
|
|
static void pushcode (lua_State *L, int code) {
|
|
static const char *const codes[] = {"OK", "YIELD", "ERRRUN",
|
|
"ERRSYNTAX", MEMERRMSG, "ERRGCMM", "ERRERR"};
|
|
lua_pushstring(L, codes[code]);
|
|
}
|
|
|
|
|
|
#define EQ(s1) (strcmp(s1, inst) == 0)
|
|
|
|
#define getnum (getnum_aux(L, L1, &pc))
|
|
#define getstring (getstring_aux(L, buff, &pc))
|
|
#define getindex (getindex_aux(L, L1, &pc))
|
|
|
|
|
|
static int testC (lua_State *L);
|
|
static int Cfunck (lua_State *L, int status, lua_KContext ctx);
|
|
|
|
/*
|
|
** arithmetic operation encoding for 'arith' instruction
|
|
** LUA_OPIDIV -> \
|
|
** LUA_OPSHL -> <
|
|
** LUA_OPSHR -> >
|
|
** LUA_OPUNM -> _
|
|
** LUA_OPBNOT -> !
|
|
*/
|
|
static const char ops[] = "+-*%^/\\&|~<>_!";
|
|
|
|
static int runC (lua_State *L, lua_State *L1, const char *pc) {
|
|
char buff[300];
|
|
int status = 0;
|
|
if (pc == NULL) return luaL_error(L, "attempt to runC null script");
|
|
for (;;) {
|
|
const char *inst = getstring;
|
|
if EQ("") return 0;
|
|
else if EQ("absindex") {
|
|
lua_pushnumber(L1, lua_absindex(L1, getindex));
|
|
}
|
|
else if EQ("append") {
|
|
int t = getindex;
|
|
int i = lua_rawlen(L1, t);
|
|
lua_rawseti(L1, t, i + 1);
|
|
}
|
|
else if EQ("arith") {
|
|
int op;
|
|
skip(&pc);
|
|
op = strchr(ops, *pc++) - ops;
|
|
lua_arith(L1, op);
|
|
}
|
|
else if EQ("call") {
|
|
int narg = getnum;
|
|
int nres = getnum;
|
|
lua_call(L1, narg, nres);
|
|
}
|
|
else if EQ("callk") {
|
|
int narg = getnum;
|
|
int nres = getnum;
|
|
int i = getindex;
|
|
lua_callk(L1, narg, nres, i, Cfunck);
|
|
}
|
|
else if EQ("checkstack") {
|
|
int sz = getnum;
|
|
const char *msg = getstring;
|
|
if (*msg == '\0')
|
|
msg = NULL; /* to test 'luaL_checkstack' with no message */
|
|
luaL_checkstack(L1, sz, msg);
|
|
}
|
|
else if EQ("rawcheckstack") {
|
|
int sz = getnum;
|
|
lua_pushboolean(L1, lua_checkstack(L1, sz));
|
|
}
|
|
else if EQ("compare") {
|
|
const char *opt = getstring; /* EQ, LT, or LE */
|
|
int op = (opt[0] == 'E') ? LUA_OPEQ
|
|
: (opt[1] == 'T') ? LUA_OPLT : LUA_OPLE;
|
|
int a = getindex;
|
|
int b = getindex;
|
|
lua_pushboolean(L1, lua_compare(L1, a, b, op));
|
|
}
|
|
else if EQ("concat") {
|
|
lua_concat(L1, getnum);
|
|
}
|
|
else if EQ("copy") {
|
|
int f = getindex;
|
|
lua_copy(L1, f, getindex);
|
|
}
|
|
else if EQ("func2num") {
|
|
lua_CFunction func = lua_tocfunction(L1, getindex);
|
|
lua_pushnumber(L1, cast_sizet(func));
|
|
}
|
|
else if EQ("getfield") {
|
|
int t = getindex;
|
|
lua_getfield(L1, t, getstring);
|
|
}
|
|
else if EQ("getglobal") {
|
|
lua_getglobal(L1, getstring);
|
|
}
|
|
else if EQ("getmetatable") {
|
|
if (lua_getmetatable(L1, getindex) == 0)
|
|
lua_pushnil(L1);
|
|
}
|
|
else if EQ("gettable") {
|
|
lua_gettable(L1, getindex);
|
|
}
|
|
else if EQ("gettop") {
|
|
lua_pushinteger(L1, lua_gettop(L1));
|
|
}
|
|
else if EQ("gsub") {
|
|
int a = getnum; int b = getnum; int c = getnum;
|
|
luaL_gsub(L1, lua_tostring(L1, a),
|
|
lua_tostring(L1, b),
|
|
lua_tostring(L1, c));
|
|
}
|
|
else if EQ("insert") {
|
|
lua_insert(L1, getnum);
|
|
}
|
|
else if EQ("iscfunction") {
|
|
lua_pushboolean(L1, lua_iscfunction(L1, getindex));
|
|
}
|
|
else if EQ("isfunction") {
|
|
lua_pushboolean(L1, lua_isfunction(L1, getindex));
|
|
}
|
|
else if EQ("isnil") {
|
|
lua_pushboolean(L1, lua_isnil(L1, getindex));
|
|
}
|
|
else if EQ("isnull") {
|
|
lua_pushboolean(L1, lua_isnone(L1, getindex));
|
|
}
|
|
else if EQ("isnumber") {
|
|
lua_pushboolean(L1, lua_isnumber(L1, getindex));
|
|
}
|
|
else if EQ("isstring") {
|
|
lua_pushboolean(L1, lua_isstring(L1, getindex));
|
|
}
|
|
else if EQ("istable") {
|
|
lua_pushboolean(L1, lua_istable(L1, getindex));
|
|
}
|
|
else if EQ("isudataval") {
|
|
lua_pushboolean(L1, lua_islightuserdata(L1, getindex));
|
|
}
|
|
else if EQ("isuserdata") {
|
|
lua_pushboolean(L1, lua_isuserdata(L1, getindex));
|
|
}
|
|
else if EQ("len") {
|
|
lua_len(L1, getindex);
|
|
}
|
|
else if EQ("Llen") {
|
|
lua_pushinteger(L1, luaL_len(L1, getindex));
|
|
}
|
|
else if EQ("loadfile") {
|
|
luaL_loadfile(L1, luaL_checkstring(L1, getnum));
|
|
}
|
|
else if EQ("loadstring") {
|
|
const char *s = luaL_checkstring(L1, getnum);
|
|
luaL_loadstring(L1, s);
|
|
}
|
|
else if EQ("newmetatable") {
|
|
lua_pushboolean(L1, luaL_newmetatable(L1, getstring));
|
|
}
|
|
else if EQ("newtable") {
|
|
lua_newtable(L1);
|
|
}
|
|
else if EQ("newthread") {
|
|
lua_newthread(L1);
|
|
}
|
|
else if EQ("resetthread") {
|
|
lua_pushinteger(L1, lua_resetthread(L1));
|
|
}
|
|
else if EQ("newuserdata") {
|
|
lua_newuserdata(L1, getnum);
|
|
}
|
|
else if EQ("next") {
|
|
lua_next(L1, -2);
|
|
}
|
|
else if EQ("objsize") {
|
|
lua_pushinteger(L1, lua_rawlen(L1, getindex));
|
|
}
|
|
else if EQ("pcall") {
|
|
int narg = getnum;
|
|
int nres = getnum;
|
|
status = lua_pcall(L1, narg, nres, getnum);
|
|
}
|
|
else if EQ("pcallk") {
|
|
int narg = getnum;
|
|
int nres = getnum;
|
|
int i = getindex;
|
|
status = lua_pcallk(L1, narg, nres, 0, i, Cfunck);
|
|
}
|
|
else if EQ("pop") {
|
|
lua_pop(L1, getnum);
|
|
}
|
|
else if EQ("printstack") {
|
|
int n = getnum;
|
|
if (n != 0) {
|
|
printf("%s\n", luaL_tolstring(L1, n, NULL));
|
|
lua_pop(L1, 1);
|
|
}
|
|
else printstack(L1);
|
|
}
|
|
else if EQ("print") {
|
|
const char *msg = getstring;
|
|
printf("%s\n", msg);
|
|
}
|
|
else if EQ("warningC") {
|
|
const char *msg = getstring;
|
|
lua_warning(L1, msg, 1);
|
|
}
|
|
else if EQ("warning") {
|
|
const char *msg = getstring;
|
|
lua_warning(L1, msg, 0);
|
|
}
|
|
else if EQ("pushbool") {
|
|
lua_pushboolean(L1, getnum);
|
|
}
|
|
else if EQ("pushcclosure") {
|
|
lua_pushcclosure(L1, testC, getnum);
|
|
}
|
|
else if EQ("pushint") {
|
|
lua_pushinteger(L1, getnum);
|
|
}
|
|
else if EQ("pushnil") {
|
|
lua_pushnil(L1);
|
|
}
|
|
else if EQ("pushnum") {
|
|
lua_pushnumber(L1, (lua_Number)getnum);
|
|
}
|
|
else if EQ("pushstatus") {
|
|
pushcode(L1, status);
|
|
}
|
|
else if EQ("pushstring") {
|
|
lua_pushstring(L1, getstring);
|
|
}
|
|
else if EQ("pushupvalueindex") {
|
|
lua_pushinteger(L1, lua_upvalueindex(getnum));
|
|
}
|
|
else if EQ("pushvalue") {
|
|
lua_pushvalue(L1, getindex);
|
|
}
|
|
else if EQ("pushfstringI") {
|
|
lua_pushfstring(L1, lua_tostring(L, -2), (int)lua_tointeger(L, -1));
|
|
}
|
|
else if EQ("pushfstringS") {
|
|
lua_pushfstring(L1, lua_tostring(L, -2), lua_tostring(L, -1));
|
|
}
|
|
else if EQ("pushfstringP") {
|
|
lua_pushfstring(L1, lua_tostring(L, -2), lua_topointer(L, -1));
|
|
}
|
|
else if EQ("rawget") {
|
|
int t = getindex;
|
|
lua_rawget(L1, t);
|
|
}
|
|
else if EQ("rawgeti") {
|
|
int t = getindex;
|
|
lua_rawgeti(L1, t, getnum);
|
|
}
|
|
else if EQ("rawgetp") {
|
|
int t = getindex;
|
|
lua_rawgetp(L1, t, cast_voidp(cast_sizet(getnum)));
|
|
}
|
|
else if EQ("rawset") {
|
|
int t = getindex;
|
|
lua_rawset(L1, t);
|
|
}
|
|
else if EQ("rawseti") {
|
|
int t = getindex;
|
|
lua_rawseti(L1, t, getnum);
|
|
}
|
|
else if EQ("rawsetp") {
|
|
int t = getindex;
|
|
lua_rawsetp(L1, t, cast_voidp(cast_sizet(getnum)));
|
|
}
|
|
else if EQ("remove") {
|
|
lua_remove(L1, getnum);
|
|
}
|
|
else if EQ("replace") {
|
|
lua_replace(L1, getindex);
|
|
}
|
|
else if EQ("resume") {
|
|
int i = getindex;
|
|
int nres;
|
|
status = lua_resume(lua_tothread(L1, i), L, getnum, &nres);
|
|
}
|
|
else if EQ("return") {
|
|
int n = getnum;
|
|
if (L1 != L) {
|
|
int i;
|
|
for (i = 0; i < n; i++) {
|
|
int idx = -(n - i);
|
|
switch (lua_type(L1, idx)) {
|
|
case LUA_TBOOLEAN:
|
|
lua_pushboolean(L, lua_toboolean(L1, idx));
|
|
break;
|
|
default:
|
|
lua_pushstring(L, lua_tostring(L1, idx));
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return n;
|
|
}
|
|
else if EQ("rotate") {
|
|
int i = getindex;
|
|
lua_rotate(L1, i, getnum);
|
|
}
|
|
else if EQ("setfield") {
|
|
int t = getindex;
|
|
const char *s = getstring;
|
|
lua_setfield(L1, t, s);
|
|
}
|
|
else if EQ("seti") {
|
|
int t = getindex;
|
|
lua_seti(L1, t, getnum);
|
|
}
|
|
else if EQ("setglobal") {
|
|
const char *s = getstring;
|
|
lua_setglobal(L1, s);
|
|
}
|
|
else if EQ("sethook") {
|
|
int mask = getnum;
|
|
int count = getnum;
|
|
const char *s = getstring;
|
|
sethookaux(L1, mask, count, s);
|
|
}
|
|
else if EQ("setmetatable") {
|
|
int idx = getindex;
|
|
lua_setmetatable(L1, idx);
|
|
}
|
|
else if EQ("settable") {
|
|
lua_settable(L1, getindex);
|
|
}
|
|
else if EQ("settop") {
|
|
lua_settop(L1, getnum);
|
|
}
|
|
else if EQ("testudata") {
|
|
int i = getindex;
|
|
lua_pushboolean(L1, luaL_testudata(L1, i, getstring) != NULL);
|
|
}
|
|
else if EQ("error") {
|
|
lua_error(L1);
|
|
}
|
|
else if EQ("abort") {
|
|
abort();
|
|
}
|
|
else if EQ("throw") {
|
|
#if defined(__cplusplus)
|
|
static struct X { int x; } x;
|
|
throw x;
|
|
#else
|
|
luaL_error(L1, "C++");
|
|
#endif
|
|
break;
|
|
}
|
|
else if EQ("tobool") {
|
|
lua_pushboolean(L1, lua_toboolean(L1, getindex));
|
|
}
|
|
else if EQ("tocfunction") {
|
|
lua_pushcfunction(L1, lua_tocfunction(L1, getindex));
|
|
}
|
|
else if EQ("tointeger") {
|
|
lua_pushinteger(L1, lua_tointeger(L1, getindex));
|
|
}
|
|
else if EQ("tonumber") {
|
|
lua_pushnumber(L1, lua_tonumber(L1, getindex));
|
|
}
|
|
else if EQ("topointer") {
|
|
lua_pushlightuserdata(L1, cast_voidp(lua_topointer(L1, getindex)));
|
|
}
|
|
else if EQ("touserdata") {
|
|
lua_pushlightuserdata(L1, lua_touserdata(L1, getindex));
|
|
}
|
|
else if EQ("tostring") {
|
|
const char *s = lua_tostring(L1, getindex);
|
|
const char *s1 = lua_pushstring(L1, s);
|
|
lua_longassert((s == NULL && s1 == NULL) || strcmp(s, s1) == 0);
|
|
}
|
|
else if EQ("type") {
|
|
lua_pushstring(L1, luaL_typename(L1, getnum));
|
|
}
|
|
else if EQ("xmove") {
|
|
int f = getindex;
|
|
int t = getindex;
|
|
lua_State *fs = (f == 0) ? L1 : lua_tothread(L1, f);
|
|
lua_State *ts = (t == 0) ? L1 : lua_tothread(L1, t);
|
|
int n = getnum;
|
|
if (n == 0) n = lua_gettop(fs);
|
|
lua_xmove(fs, ts, n);
|
|
}
|
|
else if EQ("yield") {
|
|
return lua_yield(L1, getnum);
|
|
}
|
|
else if EQ("yieldk") {
|
|
int nres = getnum;
|
|
int i = getindex;
|
|
return lua_yieldk(L1, nres, i, Cfunck);
|
|
}
|
|
else if EQ("toclose") {
|
|
lua_toclose(L1, getnum);
|
|
}
|
|
else luaL_error(L, "unknown instruction %s", buff);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int testC (lua_State *L) {
|
|
lua_State *L1;
|
|
const char *pc;
|
|
if (lua_isuserdata(L, 1)) {
|
|
L1 = getstate(L);
|
|
pc = luaL_checkstring(L, 2);
|
|
}
|
|
else if (lua_isthread(L, 1)) {
|
|
L1 = lua_tothread(L, 1);
|
|
pc = luaL_checkstring(L, 2);
|
|
}
|
|
else {
|
|
L1 = L;
|
|
pc = luaL_checkstring(L, 1);
|
|
}
|
|
return runC(L, L1, pc);
|
|
}
|
|
|
|
|
|
static int Cfunc (lua_State *L) {
|
|
return runC(L, L, lua_tostring(L, lua_upvalueindex(1)));
|
|
}
|
|
|
|
|
|
static int Cfunck (lua_State *L, int status, lua_KContext ctx) {
|
|
pushcode(L, status);
|
|
lua_setglobal(L, "status");
|
|
lua_pushinteger(L, ctx);
|
|
lua_setglobal(L, "ctx");
|
|
return runC(L, L, lua_tostring(L, ctx));
|
|
}
|
|
|
|
|
|
static int makeCfunc (lua_State *L) {
|
|
luaL_checkstring(L, 1);
|
|
lua_pushcclosure(L, Cfunc, lua_gettop(L));
|
|
return 1;
|
|
}
|
|
|
|
|
|
/* }====================================================== */
|
|
|
|
|
|
/*
|
|
** {======================================================
|
|
** tests for C hooks
|
|
** =======================================================
|
|
*/
|
|
|
|
/*
|
|
** C hook that runs the C script stored in registry.C_HOOK[L]
|
|
*/
|
|
static void Chook (lua_State *L, lua_Debug *ar) {
|
|
const char *scpt;
|
|
const char *const events [] = {"call", "ret", "line", "count", "tailcall"};
|
|
lua_getfield(L, LUA_REGISTRYINDEX, "C_HOOK");
|
|
lua_pushlightuserdata(L, L);
|
|
lua_gettable(L, -2); /* get C_HOOK[L] (script saved by sethookaux) */
|
|
scpt = lua_tostring(L, -1); /* not very religious (string will be popped) */
|
|
lua_pop(L, 2); /* remove C_HOOK and script */
|
|
lua_pushstring(L, events[ar->event]); /* may be used by script */
|
|
lua_pushinteger(L, ar->currentline); /* may be used by script */
|
|
runC(L, L, scpt); /* run script from C_HOOK[L] */
|
|
}
|
|
|
|
|
|
/*
|
|
** sets 'registry.C_HOOK[L] = scpt' and sets 'Chook' as a hook
|
|
*/
|
|
static void sethookaux (lua_State *L, int mask, int count, const char *scpt) {
|
|
if (*scpt == '\0') { /* no script? */
|
|
lua_sethook(L, NULL, 0, 0); /* turn off hooks */
|
|
return;
|
|
}
|
|
lua_getfield(L, LUA_REGISTRYINDEX, "C_HOOK"); /* get C_HOOK table */
|
|
if (!lua_istable(L, -1)) { /* no hook table? */
|
|
lua_pop(L, 1); /* remove previous value */
|
|
lua_newtable(L); /* create new C_HOOK table */
|
|
lua_pushvalue(L, -1);
|
|
lua_setfield(L, LUA_REGISTRYINDEX, "C_HOOK"); /* register it */
|
|
}
|
|
lua_pushlightuserdata(L, L);
|
|
lua_pushstring(L, scpt);
|
|
lua_settable(L, -3); /* C_HOOK[L] = script */
|
|
lua_sethook(L, Chook, mask, count);
|
|
}
|
|
|
|
|
|
static int sethook (lua_State *L) {
|
|
if (lua_isnoneornil(L, 1))
|
|
lua_sethook(L, NULL, 0, 0); /* turn off hooks */
|
|
else {
|
|
const char *scpt = luaL_checkstring(L, 1);
|
|
const char *smask = luaL_checkstring(L, 2);
|
|
int count = cast_int(luaL_optinteger(L, 3, 0));
|
|
int mask = 0;
|
|
if (strchr(smask, 'c')) mask |= LUA_MASKCALL;
|
|
if (strchr(smask, 'r')) mask |= LUA_MASKRET;
|
|
if (strchr(smask, 'l')) mask |= LUA_MASKLINE;
|
|
if (count > 0) mask |= LUA_MASKCOUNT;
|
|
sethookaux(L, mask, count, scpt);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int coresume (lua_State *L) {
|
|
int status, nres;
|
|
lua_State *co = lua_tothread(L, 1);
|
|
luaL_argcheck(L, co, 1, "coroutine expected");
|
|
status = lua_resume(co, L, 0, &nres);
|
|
if (status != LUA_OK && status != LUA_YIELD) {
|
|
lua_pushboolean(L, 0);
|
|
lua_insert(L, -2);
|
|
return 2; /* return false + error message */
|
|
}
|
|
else {
|
|
lua_pushboolean(L, 1);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
/* }====================================================== */
|
|
|
|
|
|
|
|
static const struct luaL_Reg tests_funcs[] = {
|
|
{"checkmemory", lua_checkmemory},
|
|
{"closestate", closestate},
|
|
{"d2s", d2s},
|
|
{"doonnewstack", doonnewstack},
|
|
{"doremote", doremote},
|
|
{"gccolor", gc_color},
|
|
{"gcage", gc_age},
|
|
{"gcstate", gc_state},
|
|
{"pobj", gc_printobj},
|
|
{"getref", getref},
|
|
{"hash", hash_query},
|
|
{"log2", log2_aux},
|
|
{"limits", get_limits},
|
|
{"listcode", listcode},
|
|
{"printcode", printcode},
|
|
{"listk", listk},
|
|
{"listabslineinfo", listabslineinfo},
|
|
{"listlocals", listlocals},
|
|
{"loadlib", loadlib},
|
|
{"checkpanic", checkpanic},
|
|
{"newstate", newstate},
|
|
{"newuserdata", newuserdata},
|
|
{"num2int", num2int},
|
|
{"pushuserdata", pushuserdata},
|
|
{"querystr", string_query},
|
|
{"querytab", table_query},
|
|
{"ref", tref},
|
|
{"resume", coresume},
|
|
{"s2d", s2d},
|
|
{"sethook", sethook},
|
|
{"stacklevel", stacklevel},
|
|
{"testC", testC},
|
|
{"makeCfunc", makeCfunc},
|
|
{"totalmem", mem_query},
|
|
{"alloccount", alloc_count},
|
|
{"trick", settrick},
|
|
{"udataval", udataval},
|
|
{"unref", unref},
|
|
{"upvalue", upvalue},
|
|
{NULL, NULL}
|
|
};
|
|
|
|
|
|
static void checkfinalmem (void) {
|
|
lua_assert(l_memcontrol.numblocks == 0);
|
|
lua_assert(l_memcontrol.total == 0);
|
|
}
|
|
|
|
|
|
int luaB_opentests (lua_State *L) {
|
|
void *ud;
|
|
lua_atpanic(L, &tpanic);
|
|
lua_setwarnf(L, &warnf, L);
|
|
atexit(checkfinalmem);
|
|
lua_assert(lua_getallocf(L, &ud) == debug_realloc);
|
|
lua_assert(ud == cast_voidp(&l_memcontrol));
|
|
lua_setallocf(L, lua_getallocf(L, NULL), ud);
|
|
luaL_newlib(L, tests_funcs);
|
|
return 1;
|
|
}
|
|
|
|
#endif
|
|
|