# define dNOOP
#endif
+/* Safe unless stated otherwise in Makefile.PL */
+#ifndef VMG_FORKSAFE
+# define VMG_FORKSAFE 1
+#endif
+
#ifndef VMG_MULTIPLICITY
# if defined(MULTIPLICITY) || defined(PERL_IMPLICIT_CONTEXT)
# define VMG_MULTIPLICITY 1
# define Newx(v, n, c) New(0, v, n, c)
#endif
-#ifndef NewOp
-# define NewOp(m, var, c, type) Newz(m, var, c, type)
-#endif
-
#ifndef SvMAGIC_set
# define SvMAGIC_set(sv, val) (SvMAGIC(sv) = (val))
#endif
# endif
#endif
-/* uvar magic and Hash::Util::FieldHash were commited with 28419 */
-#if VMG_HAS_PERL_MAINT(5, 9, 4, 28419) || VMG_HAS_PERL(5, 10, 0)
+/* uvar magic and Hash::Util::FieldHash were commited with 28419, but only
+ * enable it on 5.10 */
+#if VMG_HAS_PERL(5, 10, 0)
# define VMG_UVAR 1
#else
# define VMG_UVAR 0
#endif /* VMG_UVAR */
+/* --- Stolen chunk of B --------------------------------------------------- */
+
+typedef enum {
+ OPc_NULL = 0,
+ OPc_BASEOP = 1,
+ OPc_UNOP = 2,
+ OPc_BINOP = 3,
+ OPc_LOGOP = 4,
+ OPc_LISTOP = 5,
+ OPc_PMOP = 6,
+ OPc_SVOP = 7,
+ OPc_PADOP = 8,
+ OPc_PVOP = 9,
+ OPc_LOOP = 10,
+ OPc_COP = 11,
+ OPc_MAX = 12
+} opclass;
+
+STATIC const char *const vmg_opclassnames[] = {
+ "B::NULL",
+ "B::OP",
+ "B::UNOP",
+ "B::BINOP",
+ "B::LOGOP",
+ "B::LISTOP",
+ "B::PMOP",
+ "B::SVOP",
+ "B::PADOP",
+ "B::PVOP",
+ "B::LOOP",
+ "B::COP"
+};
+
+STATIC opclass vmg_opclass(const OP *o) {
+#if 0
+ if (!o)
+ return OPc_NULL;
+#endif
+
+ if (o->op_type == 0)
+ return (o->op_flags & OPf_KIDS) ? OPc_UNOP : OPc_BASEOP;
+
+ if (o->op_type == OP_SASSIGN)
+ return ((o->op_private & OPpASSIGN_BACKWARDS) ? OPc_UNOP : OPc_BINOP);
+
+ if (o->op_type == OP_AELEMFAST) {
+ if (o->op_flags & OPf_SPECIAL)
+ return OPc_BASEOP;
+ else
+#ifdef USE_ITHREADS
+ return OPc_PADOP;
+#else
+ return OPc_SVOP;
+#endif
+ }
+
+#ifdef USE_ITHREADS
+ if (o->op_type == OP_GV || o->op_type == OP_GVSV || o->op_type == OP_RCATLINE)
+ return OPc_PADOP;
+#endif
+
+ switch (PL_opargs[o->op_type] & OA_CLASS_MASK) {
+ case OA_BASEOP:
+ return OPc_BASEOP;
+ case OA_UNOP:
+ return OPc_UNOP;
+ case OA_BINOP:
+ return OPc_BINOP;
+ case OA_LOGOP:
+ return OPc_LOGOP;
+ case OA_LISTOP:
+ return OPc_LISTOP;
+ case OA_PMOP:
+ return OPc_PMOP;
+ case OA_SVOP:
+ return OPc_SVOP;
+ case OA_PADOP:
+ return OPc_PADOP;
+ case OA_PVOP_OR_SVOP:
+ return (o->op_private & (OPpTRANS_TO_UTF|OPpTRANS_FROM_UTF)) ? OPc_SVOP : OPc_PVOP;
+ case OA_LOOP:
+ return OPc_LOOP;
+ case OA_COP:
+ return OPc_COP;
+ case OA_BASEOP_OR_UNOP:
+ return (o->op_flags & OPf_KIDS) ? OPc_UNOP : OPc_BASEOP;
+ case OA_FILESTATOP:
+ return ((o->op_flags & OPf_KIDS) ? OPc_UNOP :
+#ifdef USE_ITHREADS
+ (o->op_flags & OPf_REF) ? OPc_PADOP : OPc_BASEOP);
+#else
+ (o->op_flags & OPf_REF) ? OPc_SVOP : OPc_BASEOP);
+#endif
+ case OA_LOOPEXOP:
+ if (o->op_flags & OPf_STACKED)
+ return OPc_UNOP;
+ else if (o->op_flags & OPf_SPECIAL)
+ return OPc_BASEOP;
+ else
+ return OPc_PVOP;
+ }
+
+ return OPc_BASEOP;
+}
+
/* --- Context-safe global data -------------------------------------------- */
#define MY_CXT_KEY __PACKAGE__ "::_guts" XS_VERSION
-typedef HV * my_cxt_t;
+typedef struct {
+ HV *wizards;
+ HV *b__op_stashes[OPc_MAX];
+} my_cxt_t;
START_MY_CXT
+/* --- Error messages ------------------------------------------------------ */
+
+STATIC const char vmg_invalid_wiz[] = "Invalid wizard object";
+STATIC const char vmg_invalid_sig[] = "Invalid numeric signature";
+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";
+
/* --- Signatures ---------------------------------------------------------- */
-#define SIG_MIN ((U16) (1u << 8))
+#define SIG_MIN ((U16) 0u)
#define SIG_MAX ((U16) ((1u << 16) - 1))
#define SIG_NBR (SIG_MAX - SIG_MIN + 1)
-#define SIG_WIZ ((U16) ((1u << 8) - 1))
+
+#define SIG_WZO ((U16) (0x3891))
+#define SIG_WIZ ((U16) (0x3892))
/* ... Generate signatures ................................................. */
char buf[8];
dMY_CXT;
+ if (HvKEYS(MY_CXT.wizards) >= SIG_NBR) croak(vmg_toomanysigs);
+
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;
}
if (SvTYPE(sv) >= SVt_PVMG) {
for (mg = SvMAGIC(sv); mg; mg = moremagic) {
moremagic = mg->mg_moremagic;
- if ((mg->mg_type == PERL_MAGIC_ext) && (mg->mg_private == sig)) { break; }
+ if (mg->mg_type == PERL_MAGIC_ext && mg->mg_private == SIG_WIZ) {
+ MGWIZ *w = SV2MGWIZ(mg->mg_ptr);
+ if (w->sig == sig)
+ break;
+ }
}
- if (mg) { return mg->mg_obj; }
+ if (mg)
+ return mg->mg_obj;
}
return NULL;
if (SvTYPE(sv) >= SVt_PVMG) {
for (mg = SvMAGIC(sv); mg; mg = moremagic) {
moremagic = mg->mg_moremagic;
- if ((mg->mg_type == PERL_MAGIC_ext) && (mg->mg_private == w->sig)) { break; }
+ if (mg->mg_type == PERL_MAGIC_ext && mg->mg_private == SIG_WIZ) {
+ MGWIZ *z = SV2MGWIZ(mg->mg_ptr);
+ if (z->sig == w->sig)
+ break;
+ }
}
- if (mg) { return 1; }
+ if (mg)
+ return 1;
}
data = (w->cb_data) ? vmg_data_new(w->cb_data, sv, args) : NULL;
mg = sv_magicext(sv, data, PERL_MAGIC_ext, w->vtbl, (const char *) wiz, HEf_SVKEY);
- mg->mg_private = w->sig;
+ mg->mg_private = SIG_WIZ;
#if MGf_COPY
if (w->cb_copy)
mg->mg_flags |= MGf_COPY;
/* One uvar magic in the chain is enough. */
for (prevmagic = NULL, mg = SvMAGIC(sv); mg; prevmagic = mg, mg = moremagic) {
moremagic = mg->mg_moremagic;
- if (mg->mg_type == PERL_MAGIC_uvar) { break; }
+ if (mg->mg_type == PERL_MAGIC_uvar)
+ break;
}
if (mg) { /* Found another uvar magic. */
#endif /* VMG_UVAR */
MAGIC *mg, *prevmagic, *moremagic = NULL;
- if (SvTYPE(sv) < SVt_PVMG) { return 0; }
+ if (SvTYPE(sv) < SVt_PVMG)
+ return 0;
for (prevmagic = NULL, mg = SvMAGIC(sv); mg; prevmagic = mg, mg = moremagic) {
moremagic = mg->mg_moremagic;
- if (mg->mg_type == PERL_MAGIC_ext) {
- if (mg->mg_private == sig) {
+ if (mg->mg_type == PERL_MAGIC_ext && mg->mg_private == SIG_WIZ) {
+ MGWIZ *w = SV2MGWIZ(mg->mg_ptr);
+ if (w->sig == sig) {
#if VMG_UVAR
/* If the current has no uvar, short-circuit uvar deletion. */
- uvars = (SV2MGWIZ(mg->mg_ptr)->uvar) ? (uvars + 1) : 0;
+ uvars = w->uvar ? (uvars + 1) : 0;
#endif /* VMG_UVAR */
break;
#if VMG_UVAR
- } else if ((mg->mg_private >= SIG_MIN) &&
- (mg->mg_private <= SIG_MAX) &&
- SV2MGWIZ(mg->mg_ptr)->uvar) {
+ } else if (w->uvar) {
++uvars;
/* We can't break here since we need to find the ext magic to delete. */
#endif /* VMG_UVAR */
}
}
}
- if (!mg) { return 0; }
+ if (!mg)
+ return 0;
if (prevmagic) {
prevmagic->mg_moremagic = moremagic;
}
mg->mg_moremagic = NULL;
- if (mg->mg_obj != sv) { SvREFCNT_dec(mg->mg_obj); } /* Destroy private data */
- SvREFCNT_dec((SV *) mg->mg_ptr); /* Unreference the wizard */
+ /* Destroy private data */
+ if (mg->mg_obj != sv)
+ SvREFCNT_dec(mg->mg_obj);
+ /* Unreference the wizard */
+ SvREFCNT_dec((SV *) mg->mg_ptr);
Safefree(mg);
#if VMG_UVAR
/* mg was the first ext magic in the chain that had uvar */
for (mg = moremagic; mg; mg = mg->mg_moremagic) {
- if ((mg->mg_type == PERL_MAGIC_ext) &&
- (mg->mg_private >= SIG_MIN) &&
- (mg->mg_private <= SIG_MAX) &&
- SV2MGWIZ(mg->mg_ptr)->uvar) {
- ++uvars;
- break;
+ if (mg->mg_type == PERL_MAGIC_ext && mg->mg_private == SIG_WIZ) {
+ MGWIZ *w = SV2MGWIZ(mg->mg_ptr);
+ if (w->uvar) {
+ ++uvars;
+ break;
+ }
}
}
struct ufuncs *uf;
for (prevmagic = NULL, mg = SvMAGIC(sv); mg; prevmagic = mg, mg = moremagic){
moremagic = mg->mg_moremagic;
- if (mg->mg_type == PERL_MAGIC_uvar) { break; }
+ if (mg->mg_type == PERL_MAGIC_uvar)
+ break;
}
/* assert(mg); */
uf = (struct ufuncs *) mg->mg_ptr;
#define VMG_OP_INFO_NAME 1
#define VMG_OP_INFO_OBJECT 2
-STATIC STRLEN *vmg_op_name_len = NULL;
+#if VMG_THREADSAFE
+STATIC perl_mutex vmg_op_name_init_mutex;
+#endif
-STATIC HV *vmg_b__op_stash = NULL;
+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_len) {
+#if VMG_THREADSAFE
+ MUTEX_LOCK(&vmg_op_name_init_mutex);
+#endif
+ if (!vmg_op_name_init) {
OPCODE t;
- Newx(vmg_op_name_len, MAXO, STRLEN);
for (t = 0; t < OP_max; ++t)
vmg_op_name_len[t] = strlen(PL_op_name[t]);
+ vmg_op_name_init = 1;
}
+#if VMG_THREADSAFE
+ MUTEX_UNLOCK(&vmg_op_name_init_mutex);
+#endif
break;
- case VMG_OP_INFO_OBJECT:
- if (!vmg_b__op_stash) {
+ case VMG_OP_INFO_OBJECT: {
+ dMY_CXT;
+ if (!MY_CXT.b__op_stashes[0]) {
+ opclass c;
require_pv("B.pm");
- vmg_b__op_stash = gv_stashpv("B::OP", 1);
+ for (c = 0; c < OPc_MAX; ++c)
+ MY_CXT.b__op_stashes[c] = gv_stashpv(vmg_opclassnames[c], 1);
}
break;
+ }
default:
break;
}
OPCODE t = PL_op->op_type;
return sv_2mortal(newSVpvn(PL_op_name[t], vmg_op_name_len[t]));
}
- case VMG_OP_INFO_OBJECT:
+ case VMG_OP_INFO_OBJECT: {
+ dMY_CXT;
return sv_bless(sv_2mortal(newRV_noinc(newSViv(PTR2IV(PL_op)))),
- vmg_b__op_stash);
+ MY_CXT.b__op_stashes[vmg_opclass(PL_op)]);
+ }
default:
break;
}
/* ... svt callbacks ....................................................... */
+#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)
-#define VMG_CB_CALL_EVAL 4
-STATIC int vmg_cb_call(pTHX_ SV *cb, SV *sv, SV *data, unsigned int flags, ...){
+STATIC int vmg_cb_call(pTHX_ SV *cb, unsigned int flags, SV *sv, ...) {
va_list ap;
- SV *svr;
int ret;
- unsigned int i, args, opinfo, eval;
+ 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;
- eval = flags & VMG_CB_CALL_EVAL ? G_EVAL : 0;
ENTER;
SAVETMPS;
PUSHMARK(SP);
- EXTEND(SP, args + 2);
+ EXTEND(SP, args + 1);
PUSHs(sv_2mortal(newRV_inc(sv)));
- PUSHs(data ? data : &PL_sv_undef);
- va_start(ap, flags);
+ va_start(ap, sv);
for (i = 0; i < args; ++i) {
SV *sva = va_arg(ap, SV *);
PUSHs(sva ? sva : &PL_sv_undef);
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), (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))
+#define vmg_cb_call1(I, F, S, A1) \
+ vmg_cb_call(aTHX_ (I), (((F) << VMG_CB_CALL_ARGS_SHIFT) | 1), (S), (A1))
+#define vmg_cb_call2(I, F, S, A1, A2) \
+ vmg_cb_call(aTHX_ (I), (((F) << VMG_CB_CALL_ARGS_SHIFT) | 2), (S), (A1), (A2))
+#define vmg_cb_call3(I, F, S, A1, A2, A3) \
+ vmg_cb_call(aTHX_ (I), (((F) << VMG_CB_CALL_ARGS_SHIFT) | 3), (S), (A1), (A2), (A3))
STATIC int vmg_svt_get(pTHX_ SV *sv, MAGIC *mg) {
const MGWIZ *w = SV2MGWIZ(mg->mg_ptr);
- unsigned int flags = w->opinfo;
- return vmg_cb_call1(w->cb_get, sv, mg->mg_obj);
+ return vmg_cb_call1(w->cb_get, w->opinfo, sv, mg->mg_obj);
}
STATIC int vmg_svt_set(pTHX_ SV *sv, MAGIC *mg) {
const MGWIZ *w = SV2MGWIZ(mg->mg_ptr);
- unsigned int flags = w->opinfo;
- return vmg_cb_call1(w->cb_set, sv, mg->mg_obj);
+ return vmg_cb_call1(w->cb_set, w->opinfo, sv, mg->mg_obj);
}
STATIC U32 vmg_svt_len(pTHX_ SV *sv, MAGIC *mg) {
- SV *svr;
const MGWIZ *w = SV2MGWIZ(mg->mg_ptr);
unsigned int opinfo = w->opinfo;
U32 len, ret;
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;
STATIC int vmg_svt_clear(pTHX_ SV *sv, MAGIC *mg) {
const MGWIZ *w = SV2MGWIZ(mg->mg_ptr);
- unsigned int flags = w->opinfo;
- return vmg_cb_call1(w->cb_clear, sv, mg->mg_obj);
+ return vmg_cb_call1(w->cb_clear, w->opinfo, sv, mg->mg_obj);
}
STATIC int vmg_svt_free(pTHX_ SV *sv, MAGIC *mg) {
const MGWIZ *w;
- unsigned int flags;
+#if VMG_HAS_PERL(5, 9, 5)
+ PERL_CONTEXT saved_cx;
+ I32 cxix;
+#endif
+ unsigned int had_err, has_err, flags = G_SCALAR | G_EVAL;
int ret = 0;
+ 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;
w = SV2MGWIZ(mg->mg_ptr);
- flags = w->opinfo | VMG_CB_CALL_EVAL;
- /* So that it survives the temp cleanup in vmg_cb_call */
+ /* 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
- ret = vmg_cb_call1(w->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;
+
+#if VMG_HAS_PERL(5, 9, 5)
+ /* This context should not be used anymore, but since we croak in places the
+ * core doesn't even dare to, some pointers to it may remain in the upper call
+ * stack. Make sure call_sv() doesn't clobber it. */
+ if (cxstack_ix < cxstack_max)
+ cxix = cxstack_ix + 1;
+ else
+ cxix = Perl_cxinc(aTHX);
+ saved_cx = cxstack[cxix];
+#endif
+
+ call_sv(w->cb_free, flags);
+
+#if VMG_HAS_PERL(5, 9, 5)
+ cxstack[cxix] = saved_cx;
+#endif
+
+ has_err = SvTRUE(ERRSV);
+ if (IN_PERL_COMPILETIME && !had_err && has_err)
+ ++PL_error_count;
+
+ VMG_CB_CALL_SET_RET(0);
+
+ FREETMPS;
+ LEAVE;
/* 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 */
) {
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(w->cb_copy, sv, mg->mg_obj, keysv, nsv);
+ ret = vmg_cb_call3(w->cb_copy, w->opinfo, 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) {
const MGWIZ *w = SV2MGWIZ(mg->mg_ptr);
- unsigned int flags = w->opinfo;
- return vmg_cb_call1(w->cb_local, nsv, mg->mg_obj);
+ return vmg_cb_call1(w->cb_local, w->opinfo, nsv, mg->mg_obj);
}
#endif /* MGf_LOCAL */
key = umg->mg_obj;
uf = (struct ufuncs *) umg->mg_ptr;
- if (uf[1].uf_val != NULL) { uf[1].uf_val(aTHX_ action, sv); }
- if (uf[1].uf_set != NULL) { uf[1].uf_set(aTHX_ action, sv); }
+ if (uf[1].uf_val)
+ uf[1].uf_val(aTHX_ action, sv);
+ if (uf[1].uf_set)
+ uf[1].uf_set(aTHX_ action, sv);
action &= HV_FETCH_ISSTORE | HV_FETCH_ISEXISTS | HV_FETCH_LVALUE | HV_DELETE;
for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
const MGWIZ *w;
- unsigned int flags;
switch (mg->mg_type) {
case PERL_MAGIC_ext:
break;
default:
continue;
}
- if (mg->mg_private < SIG_MIN || mg->mg_private > SIG_MAX)
- continue;
+ if (mg->mg_private != SIG_WIZ) continue;
w = SV2MGWIZ(mg->mg_ptr);
- flags = w->opinfo;
switch (w->uvar) {
case 0:
continue;
}
switch (action) {
case 0:
- if (w->cb_fetch) { vmg_cb_call2(w->cb_fetch, sv, mg->mg_obj, key); }
+ if (w->cb_fetch)
+ vmg_cb_call2(w->cb_fetch, w->opinfo, sv, mg->mg_obj, key);
break;
case HV_FETCH_ISSTORE:
case HV_FETCH_LVALUE:
case (HV_FETCH_ISSTORE|HV_FETCH_LVALUE):
- if (w->cb_store) { vmg_cb_call2(w->cb_store, sv, mg->mg_obj, key); }
+ if (w->cb_store)
+ vmg_cb_call2(w->cb_store, w->opinfo, sv, mg->mg_obj, key);
break;
case HV_FETCH_ISEXISTS:
- if (w->cb_exists) { vmg_cb_call2(w->cb_exists, sv, mg->mg_obj, key); }
+ if (w->cb_exists)
+ vmg_cb_call2(w->cb_exists, w->opinfo, sv, mg->mg_obj, key);
break;
case HV_DELETE:
- if (w->cb_delete) { vmg_cb_call2(w->cb_delete, sv, mg->mg_obj, key); }
+ if (w->cb_delete)
+ vmg_cb_call2(w->cb_delete, w->opinfo, sv, mg->mg_obj, key);
break;
}
}
{
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;
- FREETMPS;
- if (w->cb_data != NULL) { SvREFCNT_dec(SvRV(w->cb_data)); }
- if (w->cb_get != NULL) { SvREFCNT_dec(SvRV(w->cb_get)); }
- if (w->cb_set != NULL) { SvREFCNT_dec(SvRV(w->cb_set)); }
- if (w->cb_len != NULL) { SvREFCNT_dec(SvRV(w->cb_len)); }
- if (w->cb_clear != NULL) { SvREFCNT_dec(SvRV(w->cb_clear)); }
- if (w->cb_free != NULL) { SvREFCNT_dec(SvRV(w->cb_free)); }
+ /* Unmortalize the wizard to avoid it being freed in weird places. */
+ if (SvTEMP(wiz) && !SvREFCNT(wiz)) {
+ const I32 myfloor = PL_tmps_floor;
+ I32 i;
+ for (i = PL_tmps_ix; i > myfloor; --i) {
+ if (PL_tmps_stack[i] == wiz)
+ PL_tmps_stack[i] = NULL;
+ }
+ }
+
+ if (w->cb_data) SvREFCNT_dec(SvRV(w->cb_data));
+ if (w->cb_get) SvREFCNT_dec(SvRV(w->cb_get));
+ if (w->cb_set) SvREFCNT_dec(SvRV(w->cb_set));
+ if (w->cb_len) SvREFCNT_dec(SvRV(w->cb_len));
+ if (w->cb_clear) SvREFCNT_dec(SvRV(w->cb_clear));
+ if (w->cb_free) SvREFCNT_dec(SvRV(w->cb_free));
#if MGf_COPY
- if (w->cb_copy != NULL) { SvREFCNT_dec(SvRV(w->cb_copy)); }
+ if (w->cb_copy) SvREFCNT_dec(SvRV(w->cb_copy));
#endif /* MGf_COPY */
#if 0 /* MGf_DUP */
- if (w->cb_dup != NULL) { SvREFCNT_dec(SvRV(w->cb_dup)); }
+ if (w->cb_dup) SvREFCNT_dec(SvRV(w->cb_dup));
#endif /* MGf_DUP */
#if MGf_LOCAL
- if (w->cb_local != NULL) { SvREFCNT_dec(SvRV(w->cb_local)); }
+ if (w->cb_local) SvREFCNT_dec(SvRV(w->cb_local));
#endif /* MGf_LOCAL */
#if VMG_UVAR
- if (w->cb_fetch != NULL) { SvREFCNT_dec(SvRV(w->cb_fetch)); }
- if (w->cb_store != NULL) { SvREFCNT_dec(SvRV(w->cb_store)); }
- if (w->cb_exists != NULL) { SvREFCNT_dec(SvRV(w->cb_exists)); }
- if (w->cb_delete != NULL) { SvREFCNT_dec(SvRV(w->cb_delete)); }
+ if (w->cb_fetch) SvREFCNT_dec(SvRV(w->cb_fetch));
+ if (w->cb_store) SvREFCNT_dec(SvRV(w->cb_store));
+ if (w->cb_exists) SvREFCNT_dec(SvRV(w->cb_exists));
+ if (w->cb_delete) SvREFCNT_dec(SvRV(w->cb_delete));
#endif /* VMG_UVAR */
Safefree(w->vtbl);
#endif /* MGf_LOCAL */
};
-STATIC const char vmg_invalid_wiz[] = "Invalid wizard object";
-STATIC const char vmg_invalid_sig[] = "Invalid numeric signature";
-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))
- U16 sig;
+ IV sig;
if (SvIOK(sv)) {
- sig = SvUVX(sv);
+ sig = SvIVX(sv);
} else if (SvNOK(sv)) {
sig = SvNVX(sv);
} else if ((SvPOK(sv) && grok_number(SvPVX(sv), SvCUR(sv), NULL))) {
- sig = SvUV(sv);
+ sig = SvIV(sv);
} else {
croak(vmg_invalid_sig);
}
- if (sig < SIG_MIN) { sig += SIG_MIN; }
- if (sig > SIG_MAX) { sig %= SIG_MAX + 1; }
+
+ if (sig < SIG_MIN || sig > SIG_MAX)
+ croak(vmg_invalid_sig);
return sig;
}
STATIC U16 vmg_wizard_sig(pTHX_ SV *wiz) {
#define vmg_wizard_sig(W) vmg_wizard_sig(aTHX_ (W))
- char buf[8];
U16 sig;
if (SvROK(wiz)) {
{
dMY_CXT;
- if (!hv_fetch(MY_CXT, buf, sprintf(buf, "%u", sig), 0))
- sig = 0;
+ char buf[8];
+ SV **old = hv_fetch(MY_CXT.wizards, buf, sprintf(buf, "%u", sig), 0);
+ if (!(old && SV2MGWIZ(*old)))
+ croak(vmg_invalid_wiz);
}
+
return sig;
}
STATIC SV *vmg_wizard_wiz(pTHX_ SV *wiz) {
#define vmg_wizard_wiz(W) vmg_wizard_wiz(aTHX_ (W))
- char buf[8];
- SV **old;
U16 sig;
if (SvROK(wiz)) {
{
dMY_CXT;
- return (old = hv_fetch(MY_CXT, buf, sprintf(buf, "%u", sig), 0))
- ? *old : NULL;
+ char buf[8];
+ SV **old = hv_fetch(MY_CXT.wizards, buf, sprintf(buf, "%u", sig), 0);
+ if (!(old && SV2MGWIZ(*old)))
+ croak(vmg_invalid_wiz);
+
+ return *old;
}
}
{
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_stashes[0] = NULL;
+#if VMG_THREADSAFE
+ MUTEX_INIT(&vmg_op_name_init_mutex);
+#endif
+
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_FORKSAFE", newSVuv(VMG_FORKSAFE));
newCONSTSUB(stash, "VMG_OP_INFO_NAME", newSVuv(VMG_OP_INFO_NAME));
newCONSTSUB(stash, "VMG_OP_INFO_OBJECT", newSVuv(VMG_OP_INFO_OBJECT));
}
PROTOTYPE: DISABLE
PREINIT:
HV *hv;
+ U32 had_b__op_stash = 0;
+ opclass c;
CODE:
{
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;
- 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;
+ const MGWIZ *w = SV2MGWIZ(HeVAL(key));
+ if (w) {
+ MAGIC *mg;
+ 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_WZO;
+ } else {
+ sv = MGWIZ2SV(NULL);
+ }
SvREADONLY_on(sv);
if (!hv_store(hv, sig, len, sv, HeHASH(key))) croak("%s during CLONE", vmg_globstorefail);
}
+ for (c = 0; c < OPc_MAX; ++c) {
+ if (MY_CXT.b__op_stashes[c])
+ had_b__op_stash |= (((U32) 1) << c);
+ }
}
{
MY_CXT_CLONE;
- MY_CXT = hv;
+ MY_CXT.wizards = hv;
+ for (c = 0; c < OPc_MAX; ++c) {
+ MY_CXT.b__op_stashes[c] = (had_b__op_stash & (((U32) 1) << c))
+ ? gv_stashpv(vmg_opclassnames[c], 1) : NULL;
+ }
}
#endif /* VMG_THREADSAFE */
if (SvOK(svsig)) {
SV **old;
sig = vmg_sv2sig(svsig);
- if ((old = hv_fetch(MY_CXT, buf, sprintf(buf, "%u", sig), 0))) {
+ old = hv_fetch(MY_CXT.wizards, buf, sprintf(buf, "%u", sig), 0);
+ if (old && SV2MGWIZ(*old)) {
ST(0) = sv_2mortal(newRV_inc(*old));
XSRETURN(1);
}
} else {
- if (HvKEYS(MY_CXT) >= SIG_NBR) { croak(vmg_toomanysigs); }
sig = vmg_gensig();
}
sv = MGWIZ2SV(w);
mg = sv_magicext(sv, NULL, PERL_MAGIC_ext, &vmg_wizard_vtbl, NULL, 0);
- mg->mg_private = SIG_WIZ;
+ mg->mg_private = SIG_WZO;
SvREADONLY_on(sv);
- if (!hv_store(MY_CXT, buf, sprintf(buf, "%u", sig), sv, 0)) croak(vmg_globstorefail);
+ if (!hv_store(MY_CXT.wizards, buf, sprintf(buf, "%u", sig), sv, 0)) croak(vmg_globstorefail);
RETVAL = newRV_noinc(sv);
OUTPUT:
SV *gensig()
PROTOTYPE:
+PREINIT:
+ U16 sig;
+ char buf[8];
CODE:
dMY_CXT;
- if (HvKEYS(MY_CXT) >= SIG_NBR) { croak(vmg_toomanysigs); }
- RETVAL = newSVuv(vmg_gensig());
+ sig = vmg_gensig();
+ if (!hv_store(MY_CXT.wizards, buf, sprintf(buf, "%u", sig), MGWIZ2SV(NULL), 0)) croak(vmg_globstorefail);
+ RETVAL = newSVuv(sig);
OUTPUT:
RETVAL
SV *getsig(SV *wiz)
PROTOTYPE: $
+PREINIT:
+ U16 sig;
CODE:
- if (!SvROK(wiz)) { croak(vmg_invalid_wiz); }
- RETVAL = newSVuv(SV2MGWIZ(SvRV(wiz))->sig);
+ sig = vmg_wizard_sig(wiz);
+ RETVAL = newSVuv(sig);
OUTPUT:
RETVAL
SV *ret;
CODE:
wiz = vmg_wizard_wiz(wiz);
- if (!wiz)
- XSRETURN_UNDEF;
if (items > 2) {
I32 i;
args = newAV();
for (i = 2; i < items; ++i) {
SV *arg = ST(i);
SvREFCNT_inc(arg);
- if (av_store(args, i - 2, arg) == NULL) { croak(vmg_argstorefailed); }
+ if (av_store(args, i - 2, arg) == NULL) croak(vmg_argstorefailed);
}
}
ret = newSVuv(vmg_cast(SvRV(sv), wiz, args));
SV *data;
U16 sig;
PPCODE:
- sig = vmg_wizard_sig(wiz);
- if (!sig)
- XSRETURN_UNDEF;
+ sig = vmg_wizard_sig(wiz);
data = vmg_data_get(SvRV(sv), sig);
- if (!data) { XSRETURN_UNDEF; }
+ if (!data)
+ XSRETURN_EMPTY;
ST(0) = data;
XSRETURN(1);
U16 sig;
CODE:
sig = vmg_wizard_sig(wiz);
- if (!sig)
- XSRETURN_UNDEF;
RETVAL = newSVuv(vmg_dispell(SvRV(sv), sig));
OUTPUT:
RETVAL
-
-void
-_cleanup()
-PROTOTYPE:
-PPCODE:
- if (vmg_op_name_len) {
- Safefree(vmg_op_name_len);
- vmg_op_name_len = NULL;
- }
- XSRETURN(0);
projects / perl / modules / Variable-Magic.git / blobdiff