/* mg.c
*
- * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, by Larry Wall and others
+ * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
+ * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*/
/*
- * "Sam sat on the ground and put his head in his hands. 'I wish I had never
- * come here, and I don't want to see no more magic,' he said, and fell silent."
+ * Sam sat on the ground and put his head in his hands. 'I wish I had never
+ * come here, and I don't want to see no more magic,' he said, and fell silent.
+ *
+ * [p.363 of _The Lord of the Rings_, II/vii: "The Mirror of Galadriel"]
*/
/*
struct magic_state {
SV* mgs_sv;
- U32 mgs_flags;
I32 mgs_ss_ix;
+ U32 mgs_magical;
+ bool mgs_readonly;
};
/* MGS is typedef'ed to struct magic_state in perl.h */
{
dVAR;
MGS* mgs;
+
+ PERL_ARGS_ASSERT_SAVE_MAGIC;
+
assert(SvMAGICAL(sv));
/* Turning READONLY off for a copy-on-write scalar (including shared
hash keys) is a bad idea. */
mgs = SSPTR(mgs_ix, MGS*);
mgs->mgs_sv = sv;
- mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv);
+ mgs->mgs_magical = SvMAGICAL(sv);
+ mgs->mgs_readonly = SvREADONLY(sv) != 0;
mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */
SvMAGICAL_off(sv);
Perl_mg_magical(pTHX_ SV *sv)
{
const MAGIC* mg;
+ PERL_ARGS_ASSERT_MG_MAGICAL;
PERL_UNUSED_CONTEXT;
- for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
- const MGVTBL* const vtbl = mg->mg_virtual;
- if (vtbl) {
- if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP))
- SvGMAGICAL_on(sv);
- if (vtbl->svt_set)
- SvSMAGICAL_on(sv);
- if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear)
- SvRMAGICAL_on(sv);
- }
+
+ SvMAGICAL_off(sv);
+ if ((mg = SvMAGIC(sv))) {
+ do {
+ const MGVTBL* const vtbl = mg->mg_virtual;
+ if (vtbl) {
+ if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP))
+ SvGMAGICAL_on(sv);
+ if (vtbl->svt_set)
+ SvSMAGICAL_on(sv);
+ if (vtbl->svt_clear)
+ SvRMAGICAL_on(sv);
+ }
+ } while ((mg = mg->mg_moremagic));
+ if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)))
+ SvRMAGICAL_on(sv);
}
}
STATIC bool
S_is_container_magic(const MAGIC *mg)
{
+ assert(mg);
switch (mg->mg_type) {
case PERL_MAGIC_bm:
case PERL_MAGIC_fm:
{
dVAR;
const I32 mgs_ix = SSNEW(sizeof(MGS));
- const bool was_temp = (bool)SvTEMP(sv);
- int have_new = 0;
+ const bool was_temp = cBOOL(SvTEMP(sv));
+ bool have_new = 0;
MAGIC *newmg, *head, *cur, *mg;
/* guard against sv having being freed midway by holding a private
reference. */
+ PERL_ARGS_ASSERT_MG_GET;
+
/* sv_2mortal has this side effect of turning on the TEMP flag, which can
cause the SV's buffer to get stolen (and maybe other stuff).
So restore it.
newmg = cur = head = mg = SvMAGIC(sv);
while (mg) {
const MGVTBL * const vtbl = mg->mg_virtual;
+ MAGIC * const nextmg = mg->mg_moremagic; /* it may delete itself */
if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) {
CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg);
/* guard against magic having been deleted - eg FETCH calling
* untie */
- if (!SvMAGIC(sv))
+ if (!SvMAGIC(sv)) {
+ (SSPTR(mgs_ix, MGS *))->mgs_magical = 0; /* recalculate flags */
break;
+ }
- /* Don't restore the flags for this entry if it was deleted. */
+ /* recalculate flags if this entry was deleted. */
if (mg->mg_flags & MGf_GSKIP)
- (SSPTR(mgs_ix, MGS *))->mgs_flags = 0;
+ (SSPTR(mgs_ix, MGS *))->mgs_magical = 0;
}
- mg = mg->mg_moremagic;
+ mg = nextmg;
if (have_new) {
/* Have we finished with the new entries we saw? Start again
have_new = 1;
cur = mg;
mg = newmg;
+ (SSPTR(mgs_ix, MGS *))->mgs_magical = 0; /* recalculate flags */
}
}
MAGIC* mg;
MAGIC* nextmg;
+ PERL_ARGS_ASSERT_MG_SET;
+
save_magic(mgs_ix, sv);
for (mg = SvMAGIC(sv); mg; mg = nextmg) {
nextmg = mg->mg_moremagic; /* it may delete itself */
if (mg->mg_flags & MGf_GSKIP) {
mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */
- (SSPTR(mgs_ix, MGS*))->mgs_flags = 0;
+ (SSPTR(mgs_ix, MGS*))->mgs_magical = 0;
}
if (PL_localizing == 2 && !S_is_container_magic(mg))
continue;
MAGIC* mg;
STRLEN len;
+ PERL_ARGS_ASSERT_MG_LENGTH;
+
for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
const MGVTBL * const vtbl = mg->mg_virtual;
if (vtbl && vtbl->svt_len) {
}
}
- if (DO_UTF8(sv)) {
+ {
+ /* You can't know whether it's UTF-8 until you get the string again...
+ */
const U8 *s = (U8*)SvPV_const(sv, len);
- len = utf8_length(s, s + len);
+
+ if (DO_UTF8(sv)) {
+ len = utf8_length(s, s + len);
+ }
}
- else
- (void)SvPV_const(sv, len);
return len;
}
{
MAGIC* mg;
+ PERL_ARGS_ASSERT_MG_SIZE;
+
for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
const MGVTBL* const vtbl = mg->mg_virtual;
if (vtbl && vtbl->svt_len) {
switch(SvTYPE(sv)) {
case SVt_PVAV:
- return AvFILLp((AV *) sv); /* Fallback to non-tied array */
+ return AvFILLp((const AV *) sv); /* Fallback to non-tied array */
case SVt_PVHV:
/* FIXME */
default:
{
const I32 mgs_ix = SSNEW(sizeof(MGS));
MAGIC* mg;
+ MAGIC *nextmg;
+
+ PERL_ARGS_ASSERT_MG_CLEAR;
save_magic(mgs_ix, sv);
- for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
+ for (mg = SvMAGIC(sv); mg; mg = nextmg) {
const MGVTBL* const vtbl = mg->mg_virtual;
/* omit GSKIP -- never set here */
+ nextmg = mg->mg_moremagic; /* it may delete itself */
+
if (vtbl && vtbl->svt_clear)
CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg);
}
{
int count = 0;
MAGIC* mg;
+
+ PERL_ARGS_ASSERT_MG_COPY;
+
for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
const MGVTBL* const vtbl = mg->mg_virtual;
if ((mg->mg_flags & MGf_COPY) && vtbl->svt_copy){
/*
=for apidoc mg_localize
-Copy some of the magic from an existing SV to new localized version of
-that SV. Container magic (eg %ENV, $1, tie) gets copied, value magic
-doesn't (eg taint, pos).
+Copy some of the magic from an existing SV to new localized version of that
+SV. Container magic (eg %ENV, $1, tie) gets copied, value magic doesn't (eg
+taint, pos).
+
+If setmagic is false then no set magic will be called on the new (empty) SV.
+This typically means that assignment will soon follow (e.g. 'local $x = $y'),
+and that will handle the magic.
=cut
*/
void
-Perl_mg_localize(pTHX_ SV *sv, SV *nsv)
+Perl_mg_localize(pTHX_ SV *sv, SV *nsv, bool setmagic)
{
dVAR;
MAGIC *mg;
+
+ PERL_ARGS_ASSERT_MG_LOCALIZE;
+
for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
const MGVTBL* const vtbl = mg->mg_virtual;
if (!S_is_container_magic(mg))
if (SvTYPE(nsv) >= SVt_PVMG && SvMAGIC(nsv)) {
SvFLAGS(nsv) |= SvMAGICAL(sv);
- PL_localizing = 1;
- SvSETMAGIC(nsv);
- PL_localizing = 0;
+ if (setmagic) {
+ PL_localizing = 1;
+ SvSETMAGIC(nsv);
+ PL_localizing = 0;
+ }
}
}
{
MAGIC* mg;
MAGIC* moremagic;
+
+ PERL_ARGS_ASSERT_MG_FREE;
+
for (mg = SvMAGIC(sv); mg; mg = moremagic) {
const MGVTBL* const vtbl = mg->mg_virtual;
moremagic = mg->mg_moremagic;
if (mg->mg_len > 0 || mg->mg_type == PERL_MAGIC_utf8)
Safefree(mg->mg_ptr);
else if (mg->mg_len == HEf_SVKEY)
- SvREFCNT_dec((SV*)mg->mg_ptr);
+ SvREFCNT_dec(MUTABLE_SV(mg->mg_ptr));
}
if (mg->mg_flags & MGf_REFCOUNTED)
SvREFCNT_dec(mg->mg_obj);
Safefree(mg);
+ SvMAGIC_set(sv, moremagic);
}
SvMAGIC_set(sv, NULL);
+ SvMAGICAL_off(sv);
return 0;
}
dVAR;
PERL_UNUSED_ARG(sv);
+ PERL_ARGS_ASSERT_MAGIC_REGDATA_CNT;
+
if (PL_curpm) {
register const REGEXP * const rx = PM_GETRE(PL_curpm);
if (rx) {
if (mg->mg_obj) { /* @+ */
/* return the number possible */
- return rx->nparens;
+ return RX_NPARENS(rx);
} else { /* @- */
- I32 paren = rx->lastparen;
+ I32 paren = RX_LASTPAREN(rx);
/* return the last filled */
while ( paren >= 0
- && (rx->offs[paren].start == -1
- || rx->offs[paren].end == -1) )
+ && (RX_OFFS(rx)[paren].start == -1
+ || RX_OFFS(rx)[paren].end == -1) )
paren--;
return (U32)paren;
}
Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg)
{
dVAR;
+
+ PERL_ARGS_ASSERT_MAGIC_REGDATUM_GET;
+
if (PL_curpm) {
register const REGEXP * const rx = PM_GETRE(PL_curpm);
if (rx) {
register I32 t;
if (paren < 0)
return 0;
- if (paren <= (I32)rx->nparens &&
- (s = rx->offs[paren].start) != -1 &&
- (t = rx->offs[paren].end) != -1)
+ if (paren <= (I32)RX_NPARENS(rx) &&
+ (s = RX_OFFS(rx)[paren].start) != -1 &&
+ (t = RX_OFFS(rx)[paren].end) != -1)
{
register I32 i;
if (mg->mg_obj) /* @+ */
i = s;
if (i > 0 && RX_MATCH_UTF8(rx)) {
- const char * const b = rx->subbeg;
+ const char * const b = RX_SUBBEG(rx);
if (b)
i = utf8_length((U8*)b, (U8*)(b+i));
}
int
Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg)
{
+ PERL_ARGS_ASSERT_MAGIC_REGDATUM_SET;
PERL_UNUSED_ARG(sv);
PERL_UNUSED_ARG(mg);
- Perl_croak(aTHX_ PL_no_modify);
+ Perl_croak(aTHX_ "%s", PL_no_modify);
NORETURN_FUNCTION_END;
}
register const REGEXP * rx;
const char * const remaining = mg->mg_ptr + 1;
+ PERL_ARGS_ASSERT_MAGIC_LEN;
+
switch (*mg->mg_ptr) {
case '\020':
if (*remaining == '\0') { /* ^P */
}
case '+':
if (PL_curpm && (rx = PM_GETRE(PL_curpm))) {
- paren = rx->lastparen;
+ paren = RX_LASTPAREN(rx);
if (paren)
goto getparen;
}
return 0;
case '\016': /* ^N */
if (PL_curpm && (rx = PM_GETRE(PL_curpm))) {
- paren = rx->lastcloseparen;
+ paren = RX_LASTCLOSEPAREN(rx);
if (paren)
goto getparen;
}
void
Perl_emulate_cop_io(pTHX_ const COP *const c, SV *const sv)
{
+ PERL_ARGS_ASSERT_EMULATE_COP_IO;
+
if (!(CopHINTS_get(c) & (HINT_LEXICAL_IO_IN|HINT_LEXICAL_IO_OUT)))
sv_setsv(sv, &PL_sv_undef);
else {
const char * const remaining = mg->mg_ptr + 1;
const char nextchar = *remaining;
+ PERL_ARGS_ASSERT_MAGIC_GET;
+
switch (*mg->mg_ptr) {
case '\001': /* ^A */
sv_setsv(sv, PL_bodytarget);
break;
case '\005': /* ^E */
if (nextchar == '\0') {
-#if defined(MACOS_TRADITIONAL)
- {
- char msg[256];
-
- sv_setnv(sv,(double)gMacPerl_OSErr);
- sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : "");
- }
-#elif defined(VMS)
+#if defined(VMS)
{
# include <descrip.h>
# include <starlet.h>
if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1)
sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length);
else
- sv_setpvn(sv,"",0);
+ sv_setpvs(sv,"");
}
#elif defined(OS2)
if (!(_emx_env & 0x200)) { /* Under DOS */
PerlProc_GetOSError(sv, dwErr);
}
else
- sv_setpvn(sv, "", 0);
+ sv_setpvs(sv, "");
SetLastError(dwErr);
}
#else
{
- const int saveerrno = errno;
+ dSAVE_ERRNO;
sv_setnv(sv, (NV)errno);
sv_setpv(sv, errno ? Strerror(errno) : "");
- errno = saveerrno;
+ RESTORE_ERRNO;
}
#endif
SvRTRIM(sv);
sv_setiv(sv, (IV)PL_hints);
break;
case '\011': /* ^I */ /* NOT \t in EBCDIC */
- if (PL_inplace)
- sv_setpv(sv, PL_inplace);
- else
- sv_setsv(sv, &PL_sv_undef);
+ sv_setpv(sv, PL_inplace); /* Will undefine sv if PL_inplace is NULL */
break;
case '\017': /* ^O & ^OPEN */
if (nextchar == '\0') {
else if (PL_compiling.cop_warnings == pWARN_ALL) {
/* Get the bit mask for $warnings::Bits{all}, because
* it could have been extended by warnings::register */
- HV * const bits=get_hv("warnings::Bits", FALSE);
+ HV * const bits=get_hv("warnings::Bits", 0);
if (bits) {
SV ** const bits_all = hv_fetchs(bits, "all", FALSE);
if (bits_all)
case '5': case '6': case '7': case '8': case '9': case '&':
if (PL_curpm && (rx = PM_GETRE(PL_curpm))) {
/*
- * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj));
+ * Pre-threads, this was paren = atoi(GvENAME((const GV *)mg->mg_obj));
* XXX Does the new way break anything?
*/
paren = atoi(mg->mg_ptr); /* $& is in [0] */
break;
case '+':
if (PL_curpm && (rx = PM_GETRE(PL_curpm))) {
- if (rx->lastparen) {
- CALLREG_NUMBUF_FETCH(rx,rx->lastparen,sv);
+ if (RX_LASTPAREN(rx)) {
+ CALLREG_NUMBUF_FETCH(rx,RX_LASTPAREN(rx),sv);
break;
}
}
break;
case '\016': /* ^N */
if (PL_curpm && (rx = PM_GETRE(PL_curpm))) {
- if (rx->lastcloseparen) {
- CALLREG_NUMBUF_FETCH(rx,rx->lastcloseparen,sv);
+ if (RX_LASTCLOSEPAREN(rx)) {
+ CALLREG_NUMBUF_FETCH(rx,RX_LASTCLOSEPAREN(rx),sv);
break;
}
{
sv_setiv(sv, (IV)STATUS_CURRENT);
#ifdef COMPLEX_STATUS
+ SvUPGRADE(sv, SVt_PVLV);
LvTARGOFF(sv) = PL_statusvalue;
LvTARGLEN(sv) = PL_statusvalue_vms;
#endif
}
break;
case '^':
- if (GvIOp(PL_defoutgv))
- s = IoTOP_NAME(GvIOp(PL_defoutgv));
+ if (!isGV_with_GP(PL_defoutgv))
+ s = "";
+ else if (GvIOp(PL_defoutgv))
+ s = IoTOP_NAME(GvIOp(PL_defoutgv));
if (s)
sv_setpv(sv,s);
else {
sv_setpv(sv,GvENAME(PL_defoutgv));
- sv_catpv(sv,"_TOP");
+ sv_catpvs(sv,"_TOP");
}
break;
case '~':
- if (GvIOp(PL_defoutgv))
+ if (!isGV_with_GP(PL_defoutgv))
+ s = "";
+ else if (GvIOp(PL_defoutgv))
s = IoFMT_NAME(GvIOp(PL_defoutgv));
if (!s)
s = GvENAME(PL_defoutgv);
sv_setpv(sv,s);
break;
case '=':
- if (GvIOp(PL_defoutgv))
+ if (GvIO(PL_defoutgv))
sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv)));
break;
case '-':
- if (GvIOp(PL_defoutgv))
+ if (GvIO(PL_defoutgv))
sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv)));
break;
case '%':
- if (GvIOp(PL_defoutgv))
+ if (GvIO(PL_defoutgv))
sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv)));
break;
case ':':
sv_setiv(sv, (IV)CopARYBASE_get(PL_curcop));
break;
case '|':
- if (GvIOp(PL_defoutgv))
+ if (GvIO(PL_defoutgv))
sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 );
break;
- case ',':
- break;
case '\\':
if (PL_ors_sv)
sv_copypv(sv, PL_ors_sv);
break;
case '!':
+ {
+ dSAVE_ERRNO;
#ifdef VMS
sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno));
- sv_setpv(sv, errno ? Strerror(errno) : "");
#else
- {
- const int saveerrno = errno;
sv_setnv(sv, (NV)errno);
+#endif
#ifdef OS2
if (errno == errno_isOS2 || errno == errno_isOS2_set)
sv_setpv(sv, os2error(Perl_rc));
else
#endif
sv_setpv(sv, errno ? Strerror(errno) : "");
- errno = saveerrno;
+ if (SvPOKp(sv))
+ SvPOK_on(sv); /* may have got removed during taint processing */
+ RESTORE_ERRNO;
}
-#endif
+
SvRTRIM(sv);
SvNOK_on(sv); /* what a wonderful hack! */
break;
(void)SvIOK_on(sv); /* what a wonderful hack! */
#endif
break;
-#ifndef MACOS_TRADITIONAL
case '0':
break;
-#endif
}
return 0;
}
{
struct ufuncs * const uf = (struct ufuncs *)mg->mg_ptr;
+ PERL_ARGS_ASSERT_MAGIC_GETUVAR;
+
if (uf && uf->uf_val)
(*uf->uf_val)(aTHX_ uf->uf_index, sv);
return 0;
const char * const ptr = MgPV_const(mg,klen);
my_setenv(ptr, s);
+ PERL_ARGS_ASSERT_MAGIC_SETENV;
+
#ifdef DYNAMIC_ENV_FETCH
/* We just undefd an environment var. Is a replacement */
/* waiting in the wings? */
int
Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg)
{
+ PERL_ARGS_ASSERT_MAGIC_CLEARENV;
PERL_UNUSED_ARG(sv);
my_setenv(MgPV_nolen_const(mg),NULL);
return 0;
Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg)
{
dVAR;
+ PERL_ARGS_ASSERT_MAGIC_SET_ALL_ENV;
PERL_UNUSED_ARG(mg);
#if defined(VMS)
Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system");
if (PL_localizing) {
HE* entry;
my_clearenv();
- hv_iterinit((HV*)sv);
- while ((entry = hv_iternext((HV*)sv))) {
+ hv_iterinit(MUTABLE_HV(sv));
+ while ((entry = hv_iternext(MUTABLE_HV(sv)))) {
I32 keylen;
my_setenv(hv_iterkey(entry, &keylen),
- SvPV_nolen_const(hv_iterval((HV*)sv, entry)));
+ SvPV_nolen_const(hv_iterval(MUTABLE_HV(sv), entry)));
}
}
#endif
Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg)
{
dVAR;
+ PERL_ARGS_ASSERT_MAGIC_CLEAR_ALL_ENV;
PERL_UNUSED_ARG(sv);
PERL_UNUSED_ARG(mg);
#if defined(VMS)
{
dVAR;
/* Are we fetching a signal entry? */
- const I32 i = whichsig(MgPV_nolen_const(mg));
+ int i = (I16)mg->mg_private;
+
+ PERL_ARGS_ASSERT_MAGIC_GETSIG;
+
+ if (!i) {
+ mg->mg_private = i = whichsig(MgPV_nolen_const(mg));
+ }
+
if (i > 0) {
if(PL_psig_ptr[i])
sv_setsv(sv,PL_psig_ptr[i]);
int
Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg)
{
- /* XXX Some of this code was copied from Perl_magic_setsig. A little
- * refactoring might be in order.
- */
- dVAR;
- register const char * const s = MgPV_nolen_const(mg);
+ PERL_ARGS_ASSERT_MAGIC_CLEARSIG;
PERL_UNUSED_ARG(sv);
- if (*s == '_') {
- SV** svp = NULL;
- if (strEQ(s,"__DIE__"))
- svp = &PL_diehook;
- else if (strEQ(s,"__WARN__") && PL_warnhook != PERL_WARNHOOK_FATAL)
- svp = &PL_warnhook;
- if (svp && *svp) {
- SV *const to_dec = *svp;
- *svp = NULL;
- SvREFCNT_dec(to_dec);
- }
- }
- else {
- /* Are we clearing a signal entry? */
- const I32 i = whichsig(s);
- if (i > 0) {
-#ifdef HAS_SIGPROCMASK
- sigset_t set, save;
- SV* save_sv;
- /* Avoid having the signal arrive at a bad time, if possible. */
- sigemptyset(&set);
- sigaddset(&set,i);
- sigprocmask(SIG_BLOCK, &set, &save);
- ENTER;
- save_sv = newSVpv((char *)(&save), sizeof(sigset_t));
- SAVEFREESV(save_sv);
- SAVEDESTRUCTOR_X(restore_sigmask, save_sv);
-#endif
- PERL_ASYNC_CHECK();
-#if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS)
- if (!PL_sig_handlers_initted) Perl_csighandler_init();
-#endif
-#ifdef FAKE_DEFAULT_SIGNAL_HANDLERS
- PL_sig_defaulting[i] = 1;
- (void)rsignal(i, PL_csighandlerp);
-#else
- (void)rsignal(i, (Sighandler_t) SIG_DFL);
-#endif
- if(PL_psig_name[i]) {
- SvREFCNT_dec(PL_psig_name[i]);
- PL_psig_name[i]=0;
- }
- if(PL_psig_ptr[i]) {
- SV * const to_dec=PL_psig_ptr[i];
- PL_psig_ptr[i]=0;
- LEAVE;
- SvREFCNT_dec(to_dec);
- }
- else
- LEAVE;
- }
- }
- return 0;
-}
-
-/*
- * The signal handling nomenclature has gotten a bit confusing since the advent of
- * safe signals. S_raise_signal only raises signals by analogy with what the
- * underlying system's signal mechanism does. It might be more proper to say that
- * it defers signals that have already been raised and caught.
- *
- * PL_sig_pending and PL_psig_pend likewise do not track signals that are pending
- * in the sense of being on the system's signal queue in between raising and delivery.
- * They are only pending on Perl's deferral list, i.e., they track deferred signals
- * awaiting delivery after the current Perl opcode completes and say nothing about
- * signals raised but not yet caught in the underlying signal implementation.
- */
-
-#ifndef SIG_PENDING_DIE_COUNT
-# define SIG_PENDING_DIE_COUNT 120
-#endif
-static void
-S_raise_signal(pTHX_ int sig)
-{
- dVAR;
- /* Set a flag to say this signal is pending */
- PL_psig_pend[sig]++;
- /* And one to say _a_ signal is pending */
- if (++PL_sig_pending >= SIG_PENDING_DIE_COUNT)
- Perl_croak(aTHX_ "Maximal count of pending signals (%lu) exceeded",
- (unsigned long)SIG_PENDING_DIE_COUNT);
+ magic_setsig(NULL, mg);
+ return sv_unmagic(sv, mg->mg_type);
}
Signal_t
#else
dTHX;
#endif
-#if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
-#endif
#ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS
(void) rsignal(sig, PL_csighandlerp);
if (PL_sig_ignoring[sig]) return;
exit(1);
#endif
#endif
-#if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
-#endif
- if (
+ if (
#ifdef SIGILL
sig == SIGILL ||
#endif
#endif
(PL_signals & PERL_SIGNALS_UNSAFE_FLAG))
/* Call the perl level handler now--
- * with risk we may be in malloc() etc. */
- (*PL_sighandlerp)(sig);
- else
- S_raise_signal(aTHX_ sig);
+ * with risk we may be in malloc() or being destructed etc. */
#if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
+ (*PL_sighandlerp)(sig, NULL, NULL);
+#else
+ (*PL_sighandlerp)(sig);
+#endif
+ else {
+ if (!PL_psig_pend) return;
+ /* Set a flag to say this signal is pending, that is awaiting delivery after
+ * the current Perl opcode completes */
+ PL_psig_pend[sig]++;
+
+#ifndef SIG_PENDING_DIE_COUNT
+# define SIG_PENDING_DIE_COUNT 120
#endif
+ /* Add one to say _a_ signal is pending */
+ if (++PL_sig_pending >= SIG_PENDING_DIE_COUNT)
+ Perl_croak(aTHX_ "Maximal count of pending signals (%lu) exceeded",
+ (unsigned long)SIG_PENDING_DIE_COUNT);
+ }
}
#if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS)
PERL_BLOCKSIG_ADD(set, sig);
PL_psig_pend[sig] = 0;
PERL_BLOCKSIG_BLOCK(set);
+#if defined(HAS_SIGACTION) && defined(SA_SIGINFO)
+ (*PL_sighandlerp)(sig, NULL, NULL);
+#else
(*PL_sighandlerp)(sig);
+#endif
PERL_BLOCKSIG_UNBLOCK(set);
}
}
}
+/* sv of NULL signifies that we're acting as magic_clearsig. */
int
Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg)
{
sigset_t set, save;
SV* save_sv;
#endif
-
register const char *s = MgPV_const(mg,len);
+
+ PERL_ARGS_ASSERT_MAGIC_SETSIG;
+
if (*s == '_') {
if (strEQ(s,"__DIE__"))
svp = &PL_diehook;
- else if (strEQ(s,"__WARN__"))
+ else if (strEQ(s,"__WARN__")
+ && (sv ? 1 : PL_warnhook != PERL_WARNHOOK_FATAL)) {
+ /* Merge the existing behaviours, which are as follows:
+ magic_setsig, we always set svp to &PL_warnhook
+ (hence we always change the warnings handler)
+ For magic_clearsig, we don't change the warnings handler if it's
+ set to the &PL_warnhook. */
svp = &PL_warnhook;
- else
+ } else if (sv)
Perl_croak(aTHX_ "No such hook: %s", s);
i = 0;
- if (*svp) {
+ if (svp && *svp) {
if (*svp != PERL_WARNHOOK_FATAL)
to_dec = *svp;
*svp = NULL;
}
}
else {
- i = whichsig(s); /* ...no, a brick */
+ i = (I16)mg->mg_private;
+ if (!i) {
+ i = whichsig(s); /* ...no, a brick */
+ mg->mg_private = (U16)i;
+ }
if (i <= 0) {
- if (ckWARN(WARN_SIGNAL))
- Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "No such signal: SIG%s", s);
+ if (sv)
+ Perl_ck_warner(aTHX_ packWARN(WARN_SIGNAL), "No such signal: SIG%s", s);
return 0;
}
#ifdef HAS_SIGPROCMASK
sigaddset(&set,i);
sigprocmask(SIG_BLOCK, &set, &save);
ENTER;
- save_sv = newSVpv((char *)(&save), sizeof(sigset_t));
+ save_sv = newSVpvn((char *)(&save), sizeof(sigset_t));
SAVEFREESV(save_sv);
SAVEDESTRUCTOR_X(restore_sigmask, save_sv);
#endif
#ifdef FAKE_DEFAULT_SIGNAL_HANDLERS
PL_sig_defaulting[i] = 0;
#endif
- SvREFCNT_dec(PL_psig_name[i]);
to_dec = PL_psig_ptr[i];
- PL_psig_ptr[i] = SvREFCNT_inc_simple_NN(sv);
- SvTEMP_off(sv); /* Make sure it doesn't go away on us */
- PL_psig_name[i] = newSVpvn(s, len);
- SvREADONLY_on(PL_psig_name[i]);
+ if (sv) {
+ PL_psig_ptr[i] = SvREFCNT_inc_simple_NN(sv);
+ SvTEMP_off(sv); /* Make sure it doesn't go away on us */
+
+ /* Signals don't change name during the program's execution, so once
+ they're cached in the appropriate slot of PL_psig_name, they can
+ stay there.
+
+ Ideally we'd find some way of making SVs at (C) compile time, or
+ at least, doing most of the work. */
+ if (!PL_psig_name[i]) {
+ PL_psig_name[i] = newSVpvn(s, len);
+ SvREADONLY_on(PL_psig_name[i]);
+ }
+ } else {
+ SvREFCNT_dec(PL_psig_name[i]);
+ PL_psig_name[i] = NULL;
+ PL_psig_ptr[i] = NULL;
+ }
}
- if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) {
+ if (sv && (isGV_with_GP(sv) || SvROK(sv))) {
if (i) {
(void)rsignal(i, PL_csighandlerp);
-#ifdef HAS_SIGPROCMASK
- LEAVE;
-#endif
}
else
*svp = SvREFCNT_inc_simple_NN(sv);
- if(to_dec)
- SvREFCNT_dec(to_dec);
- return 0;
- }
- s = SvOK(sv) ? SvPV_force(sv,len) : "DEFAULT";
- if (strEQ(s,"IGNORE")) {
- if (i) {
+ } else {
+ if (sv && SvOK(sv)) {
+ s = SvPV_force(sv, len);
+ } else {
+ sv = NULL;
+ }
+ if (sv && strEQ(s,"IGNORE")) {
+ if (i) {
#ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS
- PL_sig_ignoring[i] = 1;
- (void)rsignal(i, PL_csighandlerp);
+ PL_sig_ignoring[i] = 1;
+ (void)rsignal(i, PL_csighandlerp);
#else
- (void)rsignal(i, (Sighandler_t) SIG_IGN);
+ (void)rsignal(i, (Sighandler_t) SIG_IGN);
#endif
+ }
}
- }
- else if (strEQ(s,"DEFAULT") || !*s) {
- if (i)
+ else if (!sv || strEQ(s,"DEFAULT") || !len) {
+ if (i) {
#ifdef FAKE_DEFAULT_SIGNAL_HANDLERS
- {
- PL_sig_defaulting[i] = 1;
- (void)rsignal(i, PL_csighandlerp);
- }
+ PL_sig_defaulting[i] = 1;
+ (void)rsignal(i, PL_csighandlerp);
#else
- (void)rsignal(i, (Sighandler_t) SIG_DFL);
+ (void)rsignal(i, (Sighandler_t) SIG_DFL);
#endif
+ }
+ }
+ else {
+ /*
+ * We should warn if HINT_STRICT_REFS, but without
+ * access to a known hint bit in a known OP, we can't
+ * tell whether HINT_STRICT_REFS is in force or not.
+ */
+ if (!strchr(s,':') && !strchr(s,'\''))
+ Perl_sv_insert_flags(aTHX_ sv, 0, 0, STR_WITH_LEN("main::"),
+ SV_GMAGIC);
+ if (i)
+ (void)rsignal(i, PL_csighandlerp);
+ else
+ *svp = SvREFCNT_inc_simple_NN(sv);
+ }
}
- else {
- /*
- * We should warn if HINT_STRICT_REFS, but without
- * access to a known hint bit in a known OP, we can't
- * tell whether HINT_STRICT_REFS is in force or not.
- */
- if (!strchr(s,':') && !strchr(s,'\''))
- Perl_sv_insert(aTHX_ sv, 0, 0, STR_WITH_LEN("main::"));
- if (i)
- (void)rsignal(i, PL_csighandlerp);
- else
- *svp = SvREFCNT_inc_simple_NN(sv);
- }
+
#ifdef HAS_SIGPROCMASK
if(i)
LEAVE;
#endif
- if(to_dec)
- SvREFCNT_dec(to_dec);
+ SvREFCNT_dec(to_dec);
return 0;
}
#endif /* !PERL_MICRO */
Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg)
{
dVAR;
- HV* stash;
+ PERL_ARGS_ASSERT_MAGIC_SETISA;
PERL_UNUSED_ARG(sv);
- /* Bail out if destruction is going on */
- if(PL_dirty) return 0;
-
/* Skip _isaelem because _isa will handle it shortly */
if (PL_delaymagic & DM_ARRAY && mg->mg_type == PERL_MAGIC_isaelem)
return 0;
+ return magic_clearisa(NULL, mg);
+}
+
+/* sv of NULL signifies that we're acting as magic_setisa. */
+int
+Perl_magic_clearisa(pTHX_ SV *sv, MAGIC *mg)
+{
+ dVAR;
+ HV* stash;
+
+ PERL_ARGS_ASSERT_MAGIC_CLEARISA;
+
+ /* Bail out if destruction is going on */
+ if(PL_dirty) return 0;
+
+ if (sv)
+ av_clear(MUTABLE_AV(sv));
+
/* XXX Once it's possible, we need to
detect that our @ISA is aliased in
other stashes, and act on the stashes
calls this same magic */
stash = GvSTASH(
SvTYPE(mg->mg_obj) == SVt_PVGV
- ? (GV*)mg->mg_obj
- : (GV*)SvMAGIC(mg->mg_obj)->mg_obj
+ ? (const GV *)mg->mg_obj
+ : (const GV *)mg_find(mg->mg_obj, PERL_MAGIC_isa)->mg_obj
);
- mro_isa_changed_in(stash);
+ if (stash)
+ mro_isa_changed_in(stash);
return 0;
}
Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg)
{
dVAR;
+ PERL_ARGS_ASSERT_MAGIC_SETAMAGIC;
PERL_UNUSED_ARG(sv);
PERL_UNUSED_ARG(mg);
PL_amagic_generation++;
int
Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg)
{
- HV * const hv = (HV*)LvTARG(sv);
+ HV * const hv = MUTABLE_HV(LvTARG(sv));
I32 i = 0;
+
+ PERL_ARGS_ASSERT_MAGIC_GETNKEYS;
PERL_UNUSED_ARG(mg);
if (hv) {
(void) hv_iterinit(hv);
- if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied))
+ if (! SvTIED_mg((const SV *)hv, PERL_MAGIC_tied))
i = HvKEYS(hv);
else {
while (hv_iternext(hv))
int
Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg)
{
+ PERL_ARGS_ASSERT_MAGIC_SETNKEYS;
PERL_UNUSED_ARG(mg);
if (LvTARG(sv)) {
- hv_ksplit((HV*)LvTARG(sv), SvIV(sv));
+ hv_ksplit(MUTABLE_HV(LvTARG(sv)), SvIV(sv));
}
return 0;
}
dVAR;
dSP;
+ PERL_ARGS_ASSERT_MAGIC_METHCALL;
+
PUSHMARK(SP);
EXTEND(SP, n);
PUSHs(SvTIED_obj(sv, mg));
if (n > 1) {
if (mg->mg_ptr) {
if (mg->mg_len >= 0)
- PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len)));
+ mPUSHp(mg->mg_ptr, mg->mg_len);
else if (mg->mg_len == HEf_SVKEY)
- PUSHs((SV*)mg->mg_ptr);
+ PUSHs(MUTABLE_SV(mg->mg_ptr));
}
else if (mg->mg_type == PERL_MAGIC_tiedelem) {
- PUSHs(sv_2mortal(newSViv(mg->mg_len)));
+ mPUSHi(mg->mg_len);
}
}
if (n > 2) {
{
dVAR; dSP;
+ PERL_ARGS_ASSERT_MAGIC_METHPACK;
+
ENTER;
SAVETMPS;
PUSHSTACKi(PERLSI_MAGIC);
int
Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg)
{
- if (mg->mg_ptr)
+ PERL_ARGS_ASSERT_MAGIC_GETPACK;
+
+ if (mg->mg_type == PERL_MAGIC_tiedelem)
mg->mg_flags |= MGf_GSKIP;
magic_methpack(sv,mg,"FETCH");
return 0;
Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg)
{
dVAR; dSP;
+ MAGIC *tmg;
+ SV *val;
+
+ PERL_ARGS_ASSERT_MAGIC_SETPACK;
+
+ /* in the code C<$tied{foo} = $val>, the "thing" that gets passed to
+ * STORE() is not $val, but rather a PVLV (the sv in this call), whose
+ * public flags indicate its value based on copying from $val. Doing
+ * mg_set() on the PVLV temporarily does SvMAGICAL_off(), then calls us.
+ * So STORE()'s $_[2] arg is a temporarily disarmed PVLV. This goes
+ * wrong if $val happened to be tainted, as sv hasn't got magic
+ * enabled, even though taint magic is in the chain. In which case,
+ * fake up a temporary tainted value (this is easier than temporarily
+ * re-enabling magic on sv). */
+
+ if (PL_tainting && (tmg = mg_find(sv, PERL_MAGIC_taint))
+ && (tmg->mg_len & 1))
+ {
+ val = sv_mortalcopy(sv);
+ SvTAINTED_on(val);
+ }
+ else
+ val = sv;
+
ENTER;
PUSHSTACKi(PERLSI_MAGIC);
- magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv);
+ magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, val);
POPSTACK;
LEAVE;
return 0;
int
Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg)
{
+ PERL_ARGS_ASSERT_MAGIC_CLEARPACK;
+
return magic_methpack(sv,mg,"DELETE");
}
dVAR; dSP;
I32 retval = 0;
+ PERL_ARGS_ASSERT_MAGIC_SIZEPACK;
+
ENTER;
SAVETMPS;
PUSHSTACKi(PERLSI_MAGIC);
{
dVAR; dSP;
+ PERL_ARGS_ASSERT_MAGIC_WIPEPACK;
+
ENTER;
PUSHSTACKi(PERLSI_MAGIC);
PUSHMARK(SP);
dVAR; dSP;
const char * const meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY";
+ PERL_ARGS_ASSERT_MAGIC_NEXTPACK;
+
ENTER;
SAVETMPS;
PUSHSTACKi(PERLSI_MAGIC);
int
Perl_magic_existspack(pTHX_ SV *sv, const MAGIC *mg)
{
+ PERL_ARGS_ASSERT_MAGIC_EXISTSPACK;
+
return magic_methpack(sv,mg,"EXISTS");
}
{
dVAR; dSP;
SV *retval;
- SV * const tied = SvTIED_obj((SV*)hv, mg);
- HV * const pkg = SvSTASH((SV*)SvRV(tied));
+ SV * const tied = SvTIED_obj(MUTABLE_SV(hv), mg);
+ HV * const pkg = SvSTASH((const SV *)SvRV(tied));
+ PERL_ARGS_ASSERT_MAGIC_SCALARPACK;
+
if (!gv_fetchmethod_autoload(pkg, "SCALAR", FALSE)) {
SV *key;
if (HvEITER_get(hv))
return &PL_sv_yes;
/* no xhv_eiter so now use FIRSTKEY */
key = sv_newmortal();
- magic_nextpack((SV*)hv, mg, key);
+ magic_nextpack(MUTABLE_SV(hv), mg, key);
HvEITER_set(hv, NULL); /* need to reset iterator */
return SvOK(key) ? &PL_sv_yes : &PL_sv_no;
}
const I32 i = SvTRUE(sv);
SV ** const svp = av_fetch(GvAV(gv),
atoi(MgPV_nolen_const(mg)), FALSE);
+
+ PERL_ARGS_ASSERT_MAGIC_SETDBLINE;
+
if (svp && SvIOKp(*svp)) {
OP * const o = INT2PTR(OP*,SvIVX(*svp));
if (o) {
Perl_magic_getarylen(pTHX_ SV *sv, const MAGIC *mg)
{
dVAR;
- const AV * const obj = (AV*)mg->mg_obj;
+ AV * const obj = MUTABLE_AV(mg->mg_obj);
+
+ PERL_ARGS_ASSERT_MAGIC_GETARYLEN;
+
if (obj) {
sv_setiv(sv, AvFILL(obj) + CopARYBASE_get(PL_curcop));
} else {
Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg)
{
dVAR;
- AV * const obj = (AV*)mg->mg_obj;
+ AV * const obj = MUTABLE_AV(mg->mg_obj);
+
+ PERL_ARGS_ASSERT_MAGIC_SETARYLEN;
+
if (obj) {
av_fill(obj, SvIV(sv) - CopARYBASE_get(PL_curcop));
} else {
- if (ckWARN(WARN_MISC))
- Perl_warner(aTHX_ packWARN(WARN_MISC),
- "Attempt to set length of freed array");
+ Perl_ck_warner(aTHX_ packWARN(WARN_MISC),
+ "Attempt to set length of freed array");
}
return 0;
}
Perl_magic_freearylen_p(pTHX_ SV *sv, MAGIC *mg)
{
dVAR;
+
+ PERL_ARGS_ASSERT_MAGIC_FREEARYLEN_P;
PERL_UNUSED_ARG(sv);
+
/* during global destruction, mg_obj may already have been freed */
if (PL_in_clean_all)
return 0;
{
dVAR;
SV* const lsv = LvTARG(sv);
+
+ PERL_ARGS_ASSERT_MAGIC_GETPOS;
PERL_UNUSED_ARG(mg);
if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) {
STRLEN ulen = 0;
MAGIC* found;
+ PERL_ARGS_ASSERT_MAGIC_SETPOS;
PERL_UNUSED_ARG(mg);
if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv))
}
int
-Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg)
-{
- GV* gv;
- PERL_UNUSED_ARG(mg);
-
- Perl_croak(aTHX_ "Perl_magic_setglob is dead code?");
-
- if (!SvOK(sv))
- return 0;
- if (isGV_with_GP(sv)) {
- /* We're actually already a typeglob, so don't need the stuff below.
- */
- return 0;
- }
- gv = gv_fetchsv(sv, GV_ADD, SVt_PVGV);
- if (sv == (SV*)gv)
- return 0;
- if (GvGP(sv))
- gp_free((GV*)sv);
- GvGP(sv) = gp_ref(GvGP(gv));
- return 0;
-}
-
-int
Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg)
{
STRLEN len;
SV * const lsv = LvTARG(sv);
const char * const tmps = SvPV_const(lsv,len);
- I32 offs = LvTARGOFF(sv);
- I32 rem = LvTARGLEN(sv);
+ STRLEN offs = LvTARGOFF(sv);
+ STRLEN rem = LvTARGLEN(sv);
+
+ PERL_ARGS_ASSERT_MAGIC_GETSUBSTR;
PERL_UNUSED_ARG(mg);
if (SvUTF8(lsv))
- sv_pos_u2b(lsv, &offs, &rem);
- if (offs > (I32)len)
+ offs = sv_pos_u2b_flags(lsv, offs, &rem, SV_CONST_RETURN);
+ if (offs > len)
offs = len;
- if (rem + offs > (I32)len)
+ if (rem > len - offs)
rem = len - offs;
- sv_setpvn(sv, tmps + offs, (STRLEN)rem);
+ sv_setpvn(sv, tmps + offs, rem);
if (SvUTF8(lsv))
SvUTF8_on(sv);
return 0;
STRLEN len;
const char * const tmps = SvPV_const(sv, len);
SV * const lsv = LvTARG(sv);
- I32 lvoff = LvTARGOFF(sv);
- I32 lvlen = LvTARGLEN(sv);
+ STRLEN lvoff = LvTARGOFF(sv);
+ STRLEN lvlen = LvTARGLEN(sv);
+
+ PERL_ARGS_ASSERT_MAGIC_SETSUBSTR;
PERL_UNUSED_ARG(mg);
if (DO_UTF8(sv)) {
sv_utf8_upgrade(lsv);
- sv_pos_u2b(lsv, &lvoff, &lvlen);
+ lvoff = sv_pos_u2b_flags(lsv, lvoff, &lvlen, SV_CONST_RETURN);
sv_insert(lsv, lvoff, lvlen, tmps, len);
LvTARGLEN(sv) = sv_len_utf8(sv);
SvUTF8_on(lsv);
}
else if (lsv && SvUTF8(lsv)) {
const char *utf8;
- sv_pos_u2b(lsv, &lvoff, &lvlen);
+ lvoff = sv_pos_u2b_flags(lsv, lvoff, &lvlen, SV_CONST_RETURN);
LvTARGLEN(sv) = len;
utf8 = (char*)bytes_to_utf8((U8*)tmps, &len);
sv_insert(lsv, lvoff, lvlen, utf8, len);
LvTARGLEN(sv) = len;
}
-
return 0;
}
Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg)
{
dVAR;
+
+ PERL_ARGS_ASSERT_MAGIC_GETTAINT;
PERL_UNUSED_ARG(sv);
+
TAINT_IF((PL_localizing != 1) && (mg->mg_len & 1));
return 0;
}
Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg)
{
dVAR;
+
+ PERL_ARGS_ASSERT_MAGIC_SETTAINT;
PERL_UNUSED_ARG(sv);
+
/* update taint status */
if (PL_tainted)
mg->mg_len |= 1;
Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg)
{
SV * const lsv = LvTARG(sv);
+
+ PERL_ARGS_ASSERT_MAGIC_GETVEC;
PERL_UNUSED_ARG(mg);
if (lsv)
int
Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg)
{
+ PERL_ARGS_ASSERT_MAGIC_SETVEC;
PERL_UNUSED_ARG(mg);
do_vecset(sv); /* XXX slurp this routine */
return 0;
{
dVAR;
SV *targ = NULL;
+
+ PERL_ARGS_ASSERT_MAGIC_GETDEFELEM;
+
if (LvTARGLEN(sv)) {
if (mg->mg_obj) {
SV * const ahv = LvTARG(sv);
- HE * const he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0);
+ HE * const he = hv_fetch_ent(MUTABLE_HV(ahv), mg->mg_obj, FALSE, 0);
if (he)
targ = HeVAL(he);
}
else {
- AV* const av = (AV*)LvTARG(sv);
+ AV *const av = MUTABLE_AV(LvTARG(sv));
if ((I32)LvTARGOFF(sv) <= AvFILL(av))
targ = AvARRAY(av)[LvTARGOFF(sv)];
}
int
Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg)
{
+ PERL_ARGS_ASSERT_MAGIC_SETDEFELEM;
PERL_UNUSED_ARG(mg);
if (LvTARGLEN(sv))
vivify_defelem(sv);
MAGIC *mg;
SV *value = NULL;
+ PERL_ARGS_ASSERT_VIVIFY_DEFELEM;
+
if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem)))
return;
if (mg->mg_obj) {
SV * const ahv = LvTARG(sv);
- HE * const he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0);
+ HE * const he = hv_fetch_ent(MUTABLE_HV(ahv), mg->mg_obj, TRUE, 0);
if (he)
value = HeVAL(he);
if (!value || value == &PL_sv_undef)
Perl_croak(aTHX_ PL_no_helem_sv, SVfARG(mg->mg_obj));
}
else {
- AV* const av = (AV*)LvTARG(sv);
+ AV *const av = MUTABLE_AV(LvTARG(sv));
if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av))
LvTARG(sv) = NULL; /* array can't be extended */
else {
int
Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg)
{
- return Perl_sv_kill_backrefs(aTHX_ sv, (AV*)mg->mg_obj);
+ PERL_ARGS_ASSERT_MAGIC_KILLBACKREFS;
+ return Perl_sv_kill_backrefs(aTHX_ sv, MUTABLE_AV(mg->mg_obj));
}
int
Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg)
{
+ PERL_ARGS_ASSERT_MAGIC_SETMGLOB;
PERL_UNUSED_CONTEXT;
mg->mg_len = -1;
- SvSCREAM_off(sv);
- return 0;
-}
-
-int
-Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg)
-{
- PERL_UNUSED_ARG(mg);
- sv_unmagic(sv, PERL_MAGIC_bm);
- SvTAIL_off(sv);
- SvVALID_off(sv);
- return 0;
-}
-
-int
-Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg)
-{
- PERL_UNUSED_ARG(mg);
- sv_unmagic(sv, PERL_MAGIC_fm);
- SvCOMPILED_off(sv);
+ if (!isGV_with_GP(sv))
+ SvSCREAM_off(sv);
return 0;
}
{
const struct ufuncs * const uf = (struct ufuncs *)mg->mg_ptr;
+ PERL_ARGS_ASSERT_MAGIC_SETUVAR;
+
if (uf && uf->uf_set)
(*uf->uf_set)(aTHX_ uf->uf_index, sv);
return 0;
int
Perl_magic_setregexp(pTHX_ SV *sv, MAGIC *mg)
{
- PERL_UNUSED_ARG(mg);
- sv_unmagic(sv, PERL_MAGIC_qr);
- return 0;
-}
+ const char type = mg->mg_type;
-int
-Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg)
-{
- dVAR;
- regexp * const re = (regexp *)mg->mg_obj;
- PERL_UNUSED_ARG(sv);
+ PERL_ARGS_ASSERT_MAGIC_SETREGEXP;
- ReREFCNT_dec(re);
- return 0;
+ if (type == PERL_MAGIC_qr) {
+ } else if (type == PERL_MAGIC_bm) {
+ SvTAIL_off(sv);
+ SvVALID_off(sv);
+ } else {
+ assert(type == PERL_MAGIC_fm);
+ SvCOMPILED_off(sv);
+ }
+ return sv_unmagic(sv, type);
}
#ifdef USE_LOCALE_COLLATE
int
Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg)
{
+ PERL_ARGS_ASSERT_MAGIC_SETCOLLXFRM;
+
/*
* RenE<eacute> Descartes said "I think not."
* and vanished with a faint plop.
int
Perl_magic_setutf8(pTHX_ SV *sv, MAGIC *mg)
{
+ PERL_ARGS_ASSERT_MAGIC_SETUTF8;
PERL_UNUSED_CONTEXT;
PERL_UNUSED_ARG(sv);
Safefree(mg->mg_ptr); /* The mg_ptr holds the pos cache. */
I32 i;
STRLEN len;
+ PERL_ARGS_ASSERT_MAGIC_SET;
+
switch (*mg->mg_ptr) {
case '\015': /* $^MATCH */
if (strEQ(remaining, "ATCH"))
* set without a previous pattern match. Unless it's C<local $1>
*/
if (!PL_localizing) {
- Perl_croak(aTHX_ PL_no_modify);
+ Perl_croak(aTHX_ "%s", PL_no_modify);
}
}
case '\001': /* ^A */
sv_setsv(PL_bodytarget, sv);
break;
case '\003': /* ^C */
- PL_minus_c = (bool)SvIV(sv);
+ PL_minus_c = cBOOL(SvIV(sv));
break;
case '\004': /* ^D */
#ifdef DEBUGGING
s = SvPV_nolen_const(sv);
PL_debug = get_debug_opts(&s, 0) | DEBUG_TOP_FLAG;
- DEBUG_x(dump_all());
+ if (DEBUG_x_TEST || DEBUG_B_TEST)
+ dump_all_perl(!DEBUG_B_TEST);
#else
PL_debug = (SvIV(sv)) | DEBUG_TOP_FLAG;
#endif
break;
case '\005': /* ^E */
if (*(mg->mg_ptr+1) == '\0') {
-#ifdef MACOS_TRADITIONAL
- gMacPerl_OSErr = SvIV(sv);
-#else
-# ifdef VMS
+#ifdef VMS
set_vaxc_errno(SvIV(sv));
-# else
-# ifdef WIN32
+#else
+# ifdef WIN32
SetLastError( SvIV(sv) );
-# else
-# ifdef OS2
+# else
+# ifdef OS2
os2_setsyserrno(SvIV(sv));
-# else
+# else
/* will anyone ever use this? */
SETERRNO(SvIV(sv), 4);
-# endif
# endif
# endif
#endif
}
else if (strEQ(mg->mg_ptr+1, "NCODING")) {
- if (PL_encoding)
- SvREFCNT_dec(PL_encoding);
+ SvREFCNT_dec(PL_encoding);
if (SvOK(sv) || SvGMAGICAL(sv)) {
PL_encoding = newSVsv(sv);
}
const char *const start = SvPV(sv, len);
const char *out = (const char*)memchr(start, '\0', len);
SV *tmp;
- struct refcounted_he *tmp_he;
PL_compiling.cop_hints |= HINT_LEXICAL_IO_IN | HINT_LEXICAL_IO_OUT;
- PL_hints
- |= HINT_LOCALIZE_HH | HINT_LEXICAL_IO_IN | HINT_LEXICAL_IO_OUT;
+ PL_hints |= HINT_LEXICAL_IO_IN | HINT_LEXICAL_IO_OUT;
/* Opening for input is more common than opening for output, so
ensure that hints for input are sooner on linked list. */
- tmp = sv_2mortal(out ? newSVpvn(out + 1, start + len - out - 1)
- : newSVpvs(""));
- SvFLAGS(tmp) |= SvUTF8(sv);
-
- tmp_he
- = Perl_refcounted_he_new(aTHX_ PL_compiling.cop_hints_hash,
- sv_2mortal(newSVpvs("open>")), tmp);
+ tmp = out ? newSVpvn_flags(out + 1, start + len - out - 1,
+ SvUTF8(sv))
+ : newSVpvs_flags("", SvUTF8(sv));
+ (void)hv_stores(GvHV(PL_hintgv), "open>", tmp);
+ mg_set(tmp);
- /* The UTF-8 setting is carried over */
- sv_setpvn(tmp, start, out ? (STRLEN)(out - start) : len);
-
- PL_compiling.cop_hints_hash
- = Perl_refcounted_he_new(aTHX_ tmp_he,
- sv_2mortal(newSVpvs("open<")), tmp);
+ tmp = newSVpvn_flags(start, out ? (STRLEN)(out - start) : len,
+ SvUTF8(sv));
+ (void)hv_stores(GvHV(PL_hintgv), "open<", tmp);
+ mg_set(tmp);
}
break;
case '\020': /* ^P */
IoLINES(GvIOp(PL_last_in_gv)) = SvIV(sv);
break;
case '^':
- Safefree(IoTOP_NAME(GvIOp(PL_defoutgv)));
- s = IoTOP_NAME(GvIOp(PL_defoutgv)) = savesvpv(sv);
- IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchsv(sv, GV_ADD, SVt_PVIO);
+ if (isGV_with_GP(PL_defoutgv)) {
+ Safefree(IoTOP_NAME(GvIOp(PL_defoutgv)));
+ s = IoTOP_NAME(GvIOp(PL_defoutgv)) = savesvpv(sv);
+ IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchsv(sv, GV_ADD, SVt_PVIO);
+ }
break;
case '~':
- Safefree(IoFMT_NAME(GvIOp(PL_defoutgv)));
- s = IoFMT_NAME(GvIOp(PL_defoutgv)) = savesvpv(sv);
- IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchsv(sv, GV_ADD, SVt_PVIO);
+ if (isGV_with_GP(PL_defoutgv)) {
+ Safefree(IoFMT_NAME(GvIOp(PL_defoutgv)));
+ s = IoFMT_NAME(GvIOp(PL_defoutgv)) = savesvpv(sv);
+ IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchsv(sv, GV_ADD, SVt_PVIO);
+ }
break;
case '=':
- IoPAGE_LEN(GvIOp(PL_defoutgv)) = (SvIV(sv));
+ if (isGV_with_GP(PL_defoutgv))
+ IoPAGE_LEN(GvIOp(PL_defoutgv)) = (SvIV(sv));
break;
case '-':
- IoLINES_LEFT(GvIOp(PL_defoutgv)) = (SvIV(sv));
- if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L)
- IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L;
+ if (isGV_with_GP(PL_defoutgv)) {
+ IoLINES_LEFT(GvIOp(PL_defoutgv)) = (SvIV(sv));
+ if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L)
+ IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L;
+ }
break;
case '%':
- IoPAGE(GvIOp(PL_defoutgv)) = (SvIV(sv));
+ if (isGV_with_GP(PL_defoutgv))
+ IoPAGE(GvIOp(PL_defoutgv)) = (SvIV(sv));
break;
case '|':
{
- IO * const io = GvIOp(PL_defoutgv);
+ IO * const io = GvIO(PL_defoutgv);
if(!io)
break;
if ((SvIV(sv)) == 0)
PL_rs = newSVsv(sv);
break;
case '\\':
- if (PL_ors_sv)
- SvREFCNT_dec(PL_ors_sv);
+ SvREFCNT_dec(PL_ors_sv);
if (SvOK(sv) || SvGMAGICAL(sv)) {
PL_ors_sv = newSVsv(sv);
}
PL_ors_sv = NULL;
}
break;
- case ',':
- if (PL_ofs_sv)
- SvREFCNT_dec(PL_ofs_sv);
- if (SvOK(sv) || SvGMAGICAL(sv)) {
- PL_ofs_sv = newSVsv(sv);
- }
- else {
- PL_ofs_sv = NULL;
- }
- break;
case '[':
CopARYBASE_set(&PL_compiling, SvIV(sv));
break;
case '?':
#ifdef COMPLEX_STATUS
if (PL_localizing == 2) {
+ SvUPGRADE(sv, SVt_PVLV);
PL_statusvalue = LvTARGOFF(sv);
PL_statusvalue_vms = LvTARGLEN(sv);
}
#endif
#endif
PL_uid = PerlProc_getuid();
- PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
break;
case '>':
PL_euid = SvIV(sv);
#endif
#endif
PL_euid = PerlProc_geteuid();
- PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
break;
case '(':
PL_gid = SvIV(sv);
#endif
#endif
PL_gid = PerlProc_getgid();
- PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
break;
case ')':
#ifdef HAS_SETGROUPS
{
const char *p = SvPV_const(sv, len);
Groups_t *gary = NULL;
+#ifdef _SC_NGROUPS_MAX
+ int maxgrp = sysconf(_SC_NGROUPS_MAX);
+
+ if (maxgrp < 0)
+ maxgrp = NGROUPS;
+#else
+ int maxgrp = NGROUPS;
+#endif
while (isSPACE(*p))
++p;
PL_egid = Atol(p);
- for (i = 0; i < NGROUPS; ++i) {
+ for (i = 0; i < maxgrp; ++i) {
while (*p && !isSPACE(*p))
++p;
while (isSPACE(*p))
#endif
#endif
PL_egid = PerlProc_getegid();
- PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
break;
case ':':
PL_chopset = SvPV_force(sv,len);
break;
-#ifndef MACOS_TRADITIONAL
case '0':
LOCK_DOLLARZERO_MUTEX;
#ifdef HAS_SETPROCTITLE
#endif
UNLOCK_DOLLARZERO_MUTEX;
break;
-#endif
}
return 0;
}
Perl_whichsig(pTHX_ const char *sig)
{
register char* const* sigv;
+
+ PERL_ARGS_ASSERT_WHICHSIG;
PERL_UNUSED_CONTEXT;
for (sigv = (char* const*)PL_sig_name; *sigv; sigv++)
if (flags & 16)
PL_scopestack_ix += 1;
/* sv_2cv is too complicated, try a simpler variant first: */
- if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig]))
+ if (!SvROK(PL_psig_ptr[sig]) || !(cv = MUTABLE_CV(SvRV(PL_psig_ptr[sig])))
|| SvTYPE(cv) != SVt_PVCV) {
HV *st;
cv = sv_2cv(PL_psig_ptr[sig], &st, &gv, GV_ADD);
}
if (!cv || !CvROOT(cv)) {
- if (ckWARN(WARN_SIGNAL))
- Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "SIG%s handler \"%s\" not defined.\n",
- PL_sig_name[sig], (gv ? GvENAME(gv)
- : ((cv && CvGV(cv))
- ? GvENAME(CvGV(cv))
- : "__ANON__")));
+ Perl_ck_warner(aTHX_ packWARN(WARN_SIGNAL), "SIG%s handler \"%s\" not defined.\n",
+ PL_sig_name[sig], (gv ? GvENAME(gv)
+ : ((cv && CvGV(cv))
+ ? GvENAME(CvGV(cv))
+ : "__ANON__")));
goto cleanup;
}
if (sigaction(sig, 0, &oact) == 0 && oact.sa_flags & SA_SIGINFO) {
if (sip) {
HV *sih = newHV();
- SV *rv = newRV_noinc((SV*)sih);
+ SV *rv = newRV_noinc(MUTABLE_SV(sih));
/* The siginfo fields signo, code, errno, pid, uid,
* addr, status, and band are defined by POSIX/SUSv3. */
(void)hv_stores(sih, "signo", newSViv(sip->si_signo));
hv_stores(sih, "band", newSViv(sip->si_band));
#endif
EXTEND(SP, 2);
- PUSHs((SV*)rv);
- PUSHs(newSVpv((char *)sip, sizeof(*sip)));
+ PUSHs(rv);
+ mPUSHp((char *)sip, sizeof(*sip));
}
}
#endif
PUTBACK;
- call_sv((SV*)cv, G_DISCARD|G_EVAL);
+ call_sv(MUTABLE_SV(cv), G_DISCARD|G_EVAL);
POPSTACK;
if (SvTRUE(ERRSV)) {
sv_force_normal_flags(sv, 0);
#endif
- if (mgs->mgs_flags)
- SvFLAGS(sv) |= mgs->mgs_flags;
+ if (mgs->mgs_readonly)
+ SvREADONLY_on(sv);
+ if (mgs->mgs_magical)
+ SvFLAGS(sv) |= mgs->mgs_magical;
else
mg_magical(sv);
if (SvGMAGICAL(sv)) {
dVAR;
const U32 flags = *(const U32*)p;
+ PERL_ARGS_ASSERT_UNWIND_HANDLER_STACK;
+
if (flags & 1)
PL_savestack_ix -= 5; /* Unprotect save in progress. */
#if !defined(PERL_IMPLICIT_CONTEXT)
Perl_magic_sethint(pTHX_ SV *sv, MAGIC *mg)
{
dVAR;
- assert(mg->mg_len == HEf_SVKEY);
+ SV *key = (mg->mg_len == HEf_SVKEY) ? MUTABLE_SV(mg->mg_ptr)
+ : newSVpvn_flags(mg->mg_ptr, mg->mg_len, SVs_TEMP);
+
+ PERL_ARGS_ASSERT_MAGIC_SETHINT;
/* mg->mg_obj isn't being used. If needed, it would be possible to store
an alternative leaf in there, with PL_compiling.cop_hints being used if
forgetting to do it, and consequent subtle errors. */
PL_hints |= HINT_LOCALIZE_HH;
PL_compiling.cop_hints_hash
- = Perl_refcounted_he_new(aTHX_ PL_compiling.cop_hints_hash,
- (SV *)mg->mg_ptr, sv);
+ = Perl_refcounted_he_new(aTHX_ PL_compiling.cop_hints_hash, key, sv);
return 0;
}
/*
-=for apidoc magic_sethint
+=for apidoc magic_clearhint
Triggered by a delete from %^H, records the key to
C<PL_compiling.cop_hints_hash>.
Perl_magic_clearhint(pTHX_ SV *sv, MAGIC *mg)
{
dVAR;
+
+ PERL_ARGS_ASSERT_MAGIC_CLEARHINT;
PERL_UNUSED_ARG(sv);
assert(mg->mg_len == HEf_SVKEY);
PL_hints |= HINT_LOCALIZE_HH;
PL_compiling.cop_hints_hash
= Perl_refcounted_he_new(aTHX_ PL_compiling.cop_hints_hash,
- (SV *)mg->mg_ptr, &PL_sv_placeholder);
+ MUTABLE_SV(mg->mg_ptr), &PL_sv_placeholder);
+ return 0;
+}
+
+/*
+=for apidoc magic_clearhints
+
+Triggered by clearing %^H, resets C<PL_compiling.cop_hints_hash>.
+
+=cut
+*/
+int
+Perl_magic_clearhints(pTHX_ SV *sv, MAGIC *mg)
+{
+ PERL_ARGS_ASSERT_MAGIC_CLEARHINTS;
+ PERL_UNUSED_ARG(sv);
+ PERL_UNUSED_ARG(mg);
+ if (PL_compiling.cop_hints_hash) {
+ Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash);
+ PL_compiling.cop_hints_hash = NULL;
+ }
return 0;
}
https://perl5.git.perl.org / perl5.git / blobdiff