# define SvMAGIC_set(sv, val) (SvMAGIC(sv) = (val))
#endif
-#ifndef mPUSHi
-# define mPUSHi(I) PUSHs(sv_2mortal(newSViv(I)))
+#ifndef mPUSHu
+# define mPUSHu(U) PUSHs(sv_2mortal(newSVuv(U)))
+#endif
+
+#ifndef SvPV_const
+# define SvPV_const SvPV
#endif
#ifndef PERL_MAGIC_ext
#define MY_CXT_KEY __PACKAGE__ "::_guts" XS_VERSION
-typedef HV * my_cxt_t;
+typedef struct {
+ HV *wizards;
+ HV *b__op_stash;
+} my_cxt_t;
START_MY_CXT
do {
sig = SIG_NBR * Drand01() + SIG_MIN;
- } while (hv_exists(MY_CXT, buf, sprintf(buf, "%u", sig)));
+ } while (hv_exists(MY_CXT.wizards, buf, sprintf(buf, "%u", sig)));
return sig;
}
typedef struct {
MGVTBL *vtbl;
+
U16 sig;
- U16 uvar;
+ U8 uvar;
+ U8 opinfo;
+
SV *cb_data;
SV *cb_get, *cb_set, *cb_len, *cb_clear, *cb_free;
#if MGf_COPY
return 1;
}
+/* ... OP info ............................................................. */
+
+#define VMG_OP_INFO_NAME 1
+#define VMG_OP_INFO_OBJECT 2
+
+STATIC U32 vmg_op_name_init = 0;
+STATIC unsigned char vmg_op_name_len[MAXO] = { 0 };
+
+STATIC void vmg_op_info_init(pTHX_ unsigned int opinfo) {
+#define vmg_op_info_init(W) vmg_op_info_init(aTHX_ (W))
+ switch (opinfo) {
+ case VMG_OP_INFO_NAME:
+ if (!vmg_op_name_init) {
+ OPCODE t;
+ for (t = 0; t < OP_max; ++t)
+ vmg_op_name_len[t] = strlen(PL_op_name[t]);
+ vmg_op_name_init = 1;
+ }
+ break;
+ case VMG_OP_INFO_OBJECT: {
+ dMY_CXT;
+ if (!MY_CXT.b__op_stash) {
+ require_pv("B.pm");
+ MY_CXT.b__op_stash = gv_stashpv("B::OP", 1);
+ }
+ break;
+ }
+ default:
+ break;
+ }
+}
+
+STATIC SV *vmg_op_info(pTHX_ unsigned int opinfo) {
+#define vmg_op_info(W) vmg_op_info(aTHX_ (W))
+ if (!PL_op)
+ return &PL_sv_undef;
+
+ switch (opinfo) {
+ case VMG_OP_INFO_NAME: {
+ OPCODE t = PL_op->op_type;
+ return sv_2mortal(newSVpvn(PL_op_name[t], vmg_op_name_len[t]));
+ }
+ case VMG_OP_INFO_OBJECT: {
+ dMY_CXT;
+ return sv_bless(sv_2mortal(newRV_noinc(newSViv(PTR2IV(PL_op)))),
+ MY_CXT.b__op_stash);
+ }
+ default:
+ break;
+ }
+
+ return &PL_sv_undef;
+}
+
/* ... svt callbacks ....................................................... */
-#define VMG_CB_CALL_ARGS_MASK 15
-#define VMG_CB_CALL_EVAL 16
+#define VMG_CB_CALL_SET_RET(D) \
+ { \
+ SV *svr; \
+ SPAGAIN; \
+ svr = POPs; \
+ ret = SvOK(svr) ? SvIV(svr) : (D); \
+ PUTBACK; \
+ }
+
+#define VMG_CB_CALL_ARGS_MASK 15
+#define VMG_CB_CALL_ARGS_SHIFT 4
+#define VMG_CB_CALL_OPINFO (VMG_OP_INFO_NAME|VMG_OP_INFO_OBJECT)
STATIC int vmg_cb_call(pTHX_ SV *cb, SV *sv, SV *data, unsigned int flags, ...){
va_list ap;
- SV *svr;
int ret;
- unsigned int i;
- unsigned int args = flags & VMG_CB_CALL_ARGS_MASK;
- unsigned int eval = flags & VMG_CB_CALL_EVAL ? G_EVAL : 0;
+ unsigned int i, args, opinfo;
dSP;
+ args = flags & VMG_CB_CALL_ARGS_MASK;
+ flags >>= VMG_CB_CALL_ARGS_SHIFT;
+ opinfo = flags & VMG_CB_CALL_OPINFO;
+
ENTER;
SAVETMPS;
PUSHs(sva ? sva : &PL_sv_undef);
}
va_end(ap);
+ if (opinfo)
+ XPUSHs(vmg_op_info(opinfo));
PUTBACK;
- call_sv(cb, G_SCALAR | eval);
+ call_sv(cb, G_SCALAR);
- SPAGAIN;
- if (eval && IN_PERL_COMPILETIME && SvTRUE(ERRSV))
- ++PL_error_count;
- svr = POPs;
- ret = SvOK(svr) ? SvIV(svr) : 0;
- PUTBACK;
+ VMG_CB_CALL_SET_RET(0);
FREETMPS;
LEAVE;
return ret;
}
-#define vmg_cb_call1(I, S, D) vmg_cb_call(aTHX_ (I), (S), (D), 0)
-#define vmg_cb_call1e(I, S, D) vmg_cb_call(aTHX_ (I), (S), (D), VMG_CB_CALL_EVAL)
-#define vmg_cb_call2(I, S, D, S2) vmg_cb_call(aTHX_ (I), (S), (D), 1, (S2))
-#define vmg_cb_call3(I, S, D, S2, S3) vmg_cb_call(aTHX_ (I), (S), (D), 2, (S2), (S3))
+#define vmg_cb_call1(I, S, D) \
+ vmg_cb_call(aTHX_ (I), (S), (D), (flags << VMG_CB_CALL_ARGS_SHIFT))
+#define vmg_cb_call2(I, S, D, S2) \
+ vmg_cb_call(aTHX_ (I), (S), (D), ((flags << VMG_CB_CALL_ARGS_SHIFT) | 1), (S2))
+#define vmg_cb_call3(I, S, D, S2, S3) \
+ vmg_cb_call(aTHX_ (I), (S), (D), ((flags << VMG_CB_CALL_ARGS_SHIFT) | 2), (S2), (S3))
STATIC int vmg_svt_get(pTHX_ SV *sv, MAGIC *mg) {
- return vmg_cb_call1(SV2MGWIZ(mg->mg_ptr)->cb_get, sv, mg->mg_obj);
+ const MGWIZ *w = SV2MGWIZ(mg->mg_ptr);
+ unsigned int flags = w->opinfo;
+ return vmg_cb_call1(w->cb_get, sv, mg->mg_obj);
}
STATIC int vmg_svt_set(pTHX_ SV *sv, MAGIC *mg) {
- return vmg_cb_call1(SV2MGWIZ(mg->mg_ptr)->cb_set, sv, mg->mg_obj);
+ const MGWIZ *w = SV2MGWIZ(mg->mg_ptr);
+ unsigned int flags = w->opinfo;
+ return vmg_cb_call1(w->cb_set, sv, mg->mg_obj);
}
STATIC U32 vmg_svt_len(pTHX_ SV *sv, MAGIC *mg) {
- SV *svr;
- I32 len, has_array;
- U32 ret;
+ const MGWIZ *w = SV2MGWIZ(mg->mg_ptr);
+ unsigned int opinfo = w->opinfo;
+ U32 len, ret;
+ svtype t = SvTYPE(sv);
dSP;
- int count;
-
- has_array = SvTYPE(sv) == SVt_PVAV;
ENTER;
SAVETMPS;
EXTEND(SP, 3);
PUSHs(sv_2mortal(newRV_inc(sv)));
PUSHs(mg->mg_obj ? mg->mg_obj : &PL_sv_undef);
- if (has_array) {
+ if (t < SVt_PVAV) {
+ STRLEN l;
+ U8 *s = (U8 *) SvPV_const(sv, l);
+ if (DO_UTF8(sv))
+ len = utf8_length(s, s + l);
+ else
+ len = l;
+ mPUSHu(len);
+ } else if (t == SVt_PVAV) {
len = av_len((AV *) sv) + 1;
- mPUSHi(len);
+ mPUSHu(len);
} else {
len = 0;
PUSHs(&PL_sv_undef);
}
+ if (opinfo)
+ XPUSHs(vmg_op_info(opinfo));
PUTBACK;
- count = call_sv(SV2MGWIZ(mg->mg_ptr)->cb_len, G_SCALAR);
+ call_sv(w->cb_len, G_SCALAR);
- SPAGAIN;
- svr = POPs;
- ret = SvOK(svr) ? SvUV(svr) : len;
- PUTBACK;
+ VMG_CB_CALL_SET_RET(len);
FREETMPS;
LEAVE;
- return has_array ? ret - 1 : ret;
+ return t == SVt_PVAV ? ret - 1 : ret;
}
STATIC int vmg_svt_clear(pTHX_ SV *sv, MAGIC *mg) {
- return vmg_cb_call1(SV2MGWIZ(mg->mg_ptr)->cb_clear, sv, mg->mg_obj);
+ const MGWIZ *w = SV2MGWIZ(mg->mg_ptr);
+ unsigned int flags = w->opinfo;
+ return vmg_cb_call1(w->cb_clear, sv, mg->mg_obj);
}
STATIC int vmg_svt_free(pTHX_ SV *sv, MAGIC *mg) {
- SV *wiz = (SV *) mg->mg_ptr;
+ const MGWIZ *w;
+ unsigned int had_err, has_err, flags = G_SCALAR | G_EVAL;
int ret = 0;
- /* This may happen in global destruction */
- if (SvTYPE(wiz) == SVTYPEMASK)
+ dSP;
+
+ /* Don't even bother if we are in global destruction - the wizard is prisoner
+ * of circular references and we are way beyond user realm */
+ if (PL_dirty)
return 0;
- /* So that it can survive tmp cleanup in vmg_cb_call */
+ w = SV2MGWIZ(mg->mg_ptr);
+
+ /* So that it survives the temp cleanup below */
SvREFCNT_inc(sv);
#if !VMG_HAS_PERL_MAINT(5, 11, 0, 32686)
SvMAGIC_set(sv, mg);
#endif
- /* Perl_mg_free will get rid of the magic and decrement mg->mg_obj and
- * mg->mg_ptr reference count */
- ret = vmg_cb_call1e(SV2MGWIZ(wiz)->cb_free, sv, mg->mg_obj);
+ ENTER;
+ SAVETMPS;
+
+ PUSHMARK(SP);
+ EXTEND(SP, 2);
+ PUSHs(sv_2mortal(newRV_inc(sv)));
+ PUSHs(mg->mg_obj ? mg->mg_obj : &PL_sv_undef);
+ if (w->opinfo)
+ XPUSHs(vmg_op_info(w->opinfo));
+ PUTBACK;
+
+ had_err = SvTRUE(ERRSV);
+ if (had_err)
+ flags |= G_KEEPERR;
+
+ call_sv(w->cb_free, flags);
+
+ has_err = SvTRUE(ERRSV);
+ if (IN_PERL_COMPILETIME && !had_err && has_err)
+ ++PL_error_count;
+
+ VMG_CB_CALL_SET_RET(0);
+
+ FREETMPS;
+ LEAVE;
+
+ if (has_err) {
+ /* Get the eval context that was pushed by call_sv, and fake an entry for the
+ * namesv, as die_where will need it to be non NULL later */
+ PERL_CONTEXT *cx = cxstack + cxstack_ix + 1;
+ if (!cx->blk_eval.old_namesv)
+ cx->blk_eval.old_namesv
+ = sv_2mortal(newSVpvn_share("Variable/Magic/DUMMY.pm", 23, 0));
+ }
/* Calling SvREFCNT_dec() will trigger destructors in an infinite loop, so
* we have to rely on SvREFCNT() being a lvalue. Heck, even the core does it */
--SvREFCNT(sv);
+ /* Perl_mg_free will get rid of the magic and decrement mg->mg_obj and
+ * mg->mg_ptr reference count */
return ret;
}
# endif
) {
SV *keysv;
+ const MGWIZ *w = SV2MGWIZ(mg->mg_ptr);
+ unsigned int flags = w->opinfo;
int ret;
if (keylen == HEf_SVKEY) {
keysv = newSVpvn(key, keylen);
}
- ret = vmg_cb_call3(SV2MGWIZ(mg->mg_ptr)->cb_copy, sv, mg->mg_obj, keysv, nsv);
+ ret = vmg_cb_call3(w->cb_copy, sv, mg->mg_obj, keysv, nsv);
if (keylen != HEf_SVKEY) {
SvREFCNT_dec(keysv);
#if MGf_LOCAL
STATIC int vmg_svt_local(pTHX_ SV *nsv, MAGIC *mg) {
- return vmg_cb_call1(SV2MGWIZ(mg->mg_ptr)->cb_local, nsv, mg->mg_obj);
+ const MGWIZ *w = SV2MGWIZ(mg->mg_ptr);
+ unsigned int flags = w->opinfo;
+ return vmg_cb_call1(w->cb_local, nsv, mg->mg_obj);
}
#endif /* MGf_LOCAL */
action &= HV_FETCH_ISSTORE | HV_FETCH_ISEXISTS | HV_FETCH_LVALUE | HV_DELETE;
for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
- MGWIZ *w;
+ const MGWIZ *w;
+ unsigned int flags;
switch (mg->mg_type) {
case PERL_MAGIC_ext:
break;
if (mg->mg_private < SIG_MIN || mg->mg_private > SIG_MAX)
continue;
w = SV2MGWIZ(mg->mg_ptr);
+ flags = w->opinfo;
switch (w->uvar) {
case 0:
continue;
case 2:
if (!newkey)
- newkey = key = umg->mg_obj = sv_2mortal(newSVsv(umg->mg_obj));
+ newkey = key = umg->mg_obj = sv_mortalcopy(umg->mg_obj);
}
switch (action) {
case 0:
{
dMY_CXT;
- if (hv_delete(MY_CXT, buf, sprintf(buf, "%u", w->sig), 0) != wiz)
+ if (hv_delete(MY_CXT.wizards, buf, sprintf(buf, "%u", w->sig), 0) != wiz)
return 0;
}
SvFLAGS(wiz) |= SVf_BREAK;
STATIC const char vmg_wrongargnum[] = "Wrong number of arguments";
STATIC const char vmg_toomanysigs[] = "Too many magic signatures used";
STATIC const char vmg_argstorefailed[] = "Error while storing arguments";
+STATIC const char vmg_globstorefail[] = "Couldn't store global wizard information";
STATIC U16 vmg_sv2sig(pTHX_ SV *sv) {
#define vmg_sv2sig(S) vmg_sv2sig(aTHX_ (S))
{
dMY_CXT;
- if (!hv_fetch(MY_CXT, buf, sprintf(buf, "%u", sig), 0))
+ if (!hv_fetch(MY_CXT.wizards, buf, sprintf(buf, "%u", sig), 0))
sig = 0;
}
return sig;
{
dMY_CXT;
- return (old = hv_fetch(MY_CXT, buf, sprintf(buf, "%u", sig), 0))
+ return (old = hv_fetch(MY_CXT.wizards, buf, sprintf(buf, "%u", sig), 0))
? *old : NULL;
}
}
VMG_CLONE_CB(exists);
VMG_CLONE_CB(delete);
#endif /* VMG_UVAR */
- z->owner = aTHX;
- z->vtbl = t;
- z->sig = w->sig;
- z->uvar = w->uvar;
+ z->owner = aTHX;
+ z->vtbl = t;
+ z->sig = w->sig;
+ z->uvar = w->uvar;
+ z->opinfo = w->opinfo;
return z;
}
{
HV *stash;
MY_CXT_INIT;
- MY_CXT = newHV();
- hv_iterinit(MY_CXT); /* Allocate iterator */
+ MY_CXT.wizards = newHV();
+ hv_iterinit(MY_CXT.wizards); /* Allocate iterator */
+ MY_CXT.b__op_stash = NULL;
stash = gv_stashpv(__PACKAGE__, 1);
newCONSTSUB(stash, "SIG_MIN", newSVuv(SIG_MIN));
newCONSTSUB(stash, "SIG_MAX", newSVuv(SIG_MAX));
newSVuv(VMG_COMPAT_SCALAR_LENGTH_NOLEN));
newCONSTSUB(stash, "VMG_PERL_PATCHLEVEL", newSVuv(VMG_PERL_PATCHLEVEL));
newCONSTSUB(stash, "VMG_THREADSAFE", newSVuv(VMG_THREADSAFE));
+ newCONSTSUB(stash, "VMG_OP_INFO_NAME", newSVuv(VMG_OP_INFO_NAME));
+ newCONSTSUB(stash, "VMG_OP_INFO_OBJECT", newSVuv(VMG_OP_INFO_OBJECT));
}
+#if VMG_THREADSAFE
+
void
CLONE(...)
PROTOTYPE: DISABLE
PREINIT:
HV *hv;
+ U32 had_b__op_stash = 0;
CODE:
-#if VMG_THREADSAFE
{
HE *key;
dMY_CXT;
hv = newHV();
hv_iterinit(hv); /* Allocate iterator */
- hv_iterinit(MY_CXT);
- while ((key = hv_iternext(MY_CXT))) {
+ hv_iterinit(MY_CXT.wizards);
+ while ((key = hv_iternext(MY_CXT.wizards))) {
STRLEN len;
char *sig = HePV(key, len);
SV *sv;
+ const MGWIZ *w;
MAGIC *mg;
- sv = MGWIZ2SV(vmg_wizard_clone(SV2MGWIZ(HeVAL(key))));
+ w = SV2MGWIZ(HeVAL(key));
+ w = vmg_wizard_clone(w);
+ sv = MGWIZ2SV(w);
mg = sv_magicext(sv, NULL, PERL_MAGIC_ext, &vmg_wizard_vtbl, NULL, 0);
mg->mg_private = SIG_WIZ;
SvREADONLY_on(sv);
- hv_store(hv, sig, len, sv, HeHASH(key));
+ if (!hv_store(hv, sig, len, sv, HeHASH(key))) croak("%s during CLONE", vmg_globstorefail);
}
+ if (MY_CXT.b__op_stash)
+ had_b__op_stash = 1;
}
{
MY_CXT_CLONE;
- MY_CXT = hv;
+ MY_CXT.wizards = hv;
+ MY_CXT.b__op_stash = had_b__op_stash ? gv_stashpv("B::OP", 1) : NULL;
}
+
#endif /* VMG_THREADSAFE */
SV *_wizard(...)
CODE:
dMY_CXT;
- if (items != 7
+ if (items != 8
#if MGf_COPY
+ 1
#endif /* MGf_COPY */
if (SvOK(svsig)) {
SV **old;
sig = vmg_sv2sig(svsig);
- if ((old = hv_fetch(MY_CXT, buf, sprintf(buf, "%u", sig), 0))) {
+ if ((old = hv_fetch(MY_CXT.wizards, buf, sprintf(buf, "%u", sig), 0))) {
ST(0) = sv_2mortal(newRV_inc(*old));
XSRETURN(1);
}
} else {
- if (HvKEYS(MY_CXT) >= SIG_NBR) { croak(vmg_toomanysigs); }
+ if (HvKEYS(MY_CXT.wizards) >= SIG_NBR) { croak(vmg_toomanysigs); }
sig = vmg_gensig();
}
Newx(w, 1, MGWIZ);
VMG_SET_CB(ST(i++), data);
+ cb = ST(i++);
+ w->opinfo = SvOK(cb) ? SvUV(cb) : 0;
+ if (w->opinfo)
+ vmg_op_info_init(w->opinfo);
VMG_SET_SVT_CB(ST(i++), get);
VMG_SET_SVT_CB(ST(i++), set);
VMG_SET_SVT_CB(ST(i++), len);
mg->mg_private = SIG_WIZ;
SvREADONLY_on(sv);
- hv_store(MY_CXT, buf, sprintf(buf, "%u", sig), sv, 0);
+ if (!hv_store(MY_CXT.wizards, buf, sprintf(buf, "%u", sig), sv, 0)) croak(vmg_globstorefail);
RETVAL = newRV_noinc(sv);
OUTPUT:
PROTOTYPE:
CODE:
dMY_CXT;
- if (HvKEYS(MY_CXT) >= SIG_NBR) { croak(vmg_toomanysigs); }
+ if (HvKEYS(MY_CXT.wizards) >= SIG_NBR) { croak(vmg_toomanysigs); }
RETVAL = newSVuv(vmg_gensig());
OUTPUT:
RETVAL
OUTPUT:
RETVAL
-SV *getdata(SV *sv, SV *wiz)
+void
+getdata(SV *sv, SV *wiz)
PROTOTYPE: \[$@%&*]$
PREINIT:
SV *data;
U16 sig;
-CODE:
+PPCODE:
sig = vmg_wizard_sig(wiz);
if (!sig)
XSRETURN_UNDEF;
projects / perl / modules / Variable-Magic.git / blobdiff