/* mg.c
*
- * Copyright (c) 1991-1994, Larry Wall
+ * Copyright (c) 1991-1997, Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
#include "EXTERN.h"
#include "perl.h"
-/* Omit -- it causes too much grief on mixed systems.
+/* XXX If this causes problems, set i_unistd=undef in the hint file. */
#ifdef I_UNISTD
# include <unistd.h>
#endif
-*/
+
+#if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS)
+# ifndef NGROUPS
+# define NGROUPS 32
+# endif
+#endif
/*
* Use the "DESTRUCTOR" scope cleanup to reinstate magic.
static void restore_magic _((void *p));
-static MGS *
-save_magic(sv)
-SV* sv;
+static void
+save_magic(MGS *mgs, SV *sv)
{
- MGS* mgs;
-
assert(SvMAGICAL(sv));
- mgs = (MGS*)safemalloc(sizeof(MGS));
mgs->mgs_sv = sv;
mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv);
SAVEDESTRUCTOR(restore_magic, mgs);
SvMAGICAL_off(sv);
SvREADONLY_off(sv);
SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT;
-
- return mgs;
}
static void
-restore_magic(p)
-void* p;
+restore_magic(void *p)
{
- MGS *mgs = (MGS*)p;
+ MGS* mgs = (MGS*)p;
SV* sv = mgs->mgs_sv;
if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv))
if (SvGMAGICAL(sv))
SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK);
}
-
- Safefree(mgs);
}
void
-mg_magical(sv)
-SV* sv;
+mg_magical(SV *sv)
{
MAGIC* mg;
for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
}
int
-mg_get(sv)
-SV* sv;
+mg_get(SV *sv)
{
- MGS* mgs;
+ MGS mgs;
MAGIC* mg;
MAGIC** mgp;
+ int mgp_valid = 0;
ENTER;
- mgs = save_magic(sv);
+ save_magic(&mgs, sv);
mgp = &SvMAGIC(sv);
while ((mg = *mgp) != 0) {
if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) {
(*vtbl->svt_get)(sv, mg);
/* Ignore this magic if it's been deleted */
- if (*mgp == mg && (mg->mg_flags & MGf_GSKIP))
- mgs->mgs_flags = 0;
+ if ((mg == (mgp_valid ? *mgp : SvMAGIC(sv))) &&
+ (mg->mg_flags & MGf_GSKIP))
+ mgs.mgs_flags = 0;
}
/* Advance to next magic (complicated by possible deletion) */
- if (*mgp == mg)
+ if (mg == (mgp_valid ? *mgp : SvMAGIC(sv))) {
mgp = &mg->mg_moremagic;
+ mgp_valid = 1;
+ }
+ else
+ mgp = &SvMAGIC(sv); /* Re-establish pointer after sv_upgrade */
}
LEAVE;
}
int
-mg_set(sv)
-SV* sv;
+mg_set(SV *sv)
{
- MGS* mgs;
+ MGS mgs;
MAGIC* mg;
MAGIC* nextmg;
ENTER;
- mgs = save_magic(sv);
+ save_magic(&mgs, sv);
for (mg = SvMAGIC(sv); mg; mg = nextmg) {
MGVTBL* vtbl = mg->mg_virtual;
nextmg = mg->mg_moremagic; /* it may delete itself */
if (mg->mg_flags & MGf_GSKIP) {
mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */
- mgs->mgs_flags = 0;
+ mgs.mgs_flags = 0;
}
if (vtbl && vtbl->svt_set)
(*vtbl->svt_set)(sv, mg);
}
U32
-mg_len(sv)
-SV* sv;
+mg_len(SV *sv)
{
MAGIC* mg;
char *junk;
for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
MGVTBL* vtbl = mg->mg_virtual;
if (vtbl && vtbl->svt_len) {
+ MGS mgs;
+
ENTER;
- save_magic(sv);
+ save_magic(&mgs, sv);
/* omit MGf_GSKIP -- not changed here */
len = (*vtbl->svt_len)(sv, mg);
LEAVE;
}
int
-mg_clear(sv)
-SV* sv;
+mg_clear(SV *sv)
{
+ MGS mgs;
MAGIC* mg;
ENTER;
- save_magic(sv);
+ save_magic(&mgs, sv);
for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
MGVTBL* vtbl = mg->mg_virtual;
}
MAGIC*
-mg_find(sv, type)
-SV* sv;
-int type;
+mg_find(SV *sv, int type)
{
MAGIC* mg;
for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) {
}
int
-mg_copy(sv, nsv, key, klen)
-SV* sv;
-SV* nsv;
-char *key;
-STRLEN klen;
+mg_copy(SV *sv, SV *nsv, char *key, I32 klen)
{
int count = 0;
MAGIC* mg;
}
int
-mg_free(sv)
-SV* sv;
+mg_free(SV *sv)
{
MAGIC* mg;
MAGIC* moremagic;
if (vtbl && vtbl->svt_free)
(*vtbl->svt_free)(sv, mg);
if (mg->mg_ptr && mg->mg_type != 'g')
- Safefree(mg->mg_ptr);
+ if (mg->mg_len >= 0)
+ Safefree(mg->mg_ptr);
+ else if (mg->mg_len == HEf_SVKEY)
+ SvREFCNT_dec((SV*)mg->mg_ptr);
if (mg->mg_flags & MGf_REFCOUNTED)
SvREFCNT_dec(mg->mg_obj);
Safefree(mg);
#endif
U32
-magic_len(sv, mg)
-SV *sv;
-MAGIC *mg;
+magic_len(SV *sv, MAGIC *mg)
{
+ dTHR;
register I32 paren;
register char *s;
register I32 i;
+ register REGEXP *rx;
char *t;
switch (*mg->mg_ptr) {
case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9': case '&':
- if (curpm) {
+ if (curpm && (rx = curpm->op_pmregexp)) {
paren = atoi(mg->mg_ptr);
getparen:
- if (curpm->op_pmregexp &&
- paren <= curpm->op_pmregexp->nparens &&
- (s = curpm->op_pmregexp->startp[paren]) &&
- (t = curpm->op_pmregexp->endp[paren]) ) {
+ if (paren <= rx->nparens &&
+ (s = rx->startp[paren]) &&
+ (t = rx->endp[paren]))
+ {
i = t - s;
if (i >= 0)
return i;
}
}
return 0;
- break;
case '+':
- if (curpm) {
- paren = curpm->op_pmregexp->lastparen;
- if (!paren)
- return 0;
- goto getparen;
+ if (curpm && (rx = curpm->op_pmregexp)) {
+ paren = rx->lastparen;
+ if (paren)
+ goto getparen;
}
return 0;
- break;
case '`':
- if (curpm) {
- if (curpm->op_pmregexp &&
- (s = curpm->op_pmregexp->subbeg) ) {
- i = curpm->op_pmregexp->startp[0] - s;
+ if (curpm && (rx = curpm->op_pmregexp)) {
+ if ((s = rx->subbeg) && rx->startp[0]) {
+ i = rx->startp[0] - s;
if (i >= 0)
return i;
}
}
return 0;
case '\'':
- if (curpm) {
- if (curpm->op_pmregexp &&
- (s = curpm->op_pmregexp->endp[0]) ) {
- return (STRLEN) (curpm->op_pmregexp->subend - s);
+ if (curpm && (rx = curpm->op_pmregexp)) {
+ if (rx->subend && (s = rx->endp[0])) {
+ i = rx->subend - s;
+ if (i >= 0)
+ return i;
}
}
return 0;
}
int
-magic_get(sv, mg)
-SV *sv;
-MAGIC *mg;
+magic_get(SV *sv, MAGIC *mg)
{
+ dTHR;
register I32 paren;
register char *s;
register I32 i;
+ register REGEXP *rx;
char *t;
switch (*mg->mg_ptr) {
sv_setsv(sv, bodytarget);
break;
case '\004': /* ^D */
- sv_setiv(sv,(I32)(debug & 32767));
+ sv_setiv(sv, (IV)(debug & 32767));
+ break;
+ case '\005': /* ^E */
+#ifdef VMS
+ {
+# include <descrip.h>
+# include <starlet.h>
+ char msg[255];
+ $DESCRIPTOR(msgdsc,msg);
+ sv_setnv(sv,(double) vaxc$errno);
+ 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_setpv(sv,"");
+ }
+#else
+#ifdef OS2
+ if (!(_emx_env & 0x200)) { /* Under DOS */
+ sv_setnv(sv, (double)errno);
+ sv_setpv(sv, errno ? Strerror(errno) : "");
+ } else {
+ if (errno != errno_isOS2)
+ Perl_rc = _syserrno();
+ sv_setnv(sv, (double)Perl_rc);
+ sv_setpv(sv, os2error(Perl_rc));
+ }
+#else
+ sv_setnv(sv, (double)errno);
+ sv_setpv(sv, errno ? Strerror(errno) : "");
+#endif
+#endif
+ SvNOK_on(sv); /* what a wonderful hack! */
break;
case '\006': /* ^F */
- sv_setiv(sv,(I32)maxsysfd);
+ sv_setiv(sv, (IV)maxsysfd);
break;
case '\010': /* ^H */
- sv_setiv(sv,(I32)hints);
+ sv_setiv(sv, (IV)hints);
break;
case '\t': /* ^I */
if (inplace)
sv_setpv(sv, inplace);
else
- sv_setsv(sv,&sv_undef);
+ sv_setsv(sv, &sv_undef);
+ break;
+ case '\017': /* ^O */
+ sv_setpv(sv, osname);
break;
case '\020': /* ^P */
- sv_setiv(sv,(I32)perldb);
+ sv_setiv(sv, (IV)perldb);
+ break;
+ case '\023': /* ^S */
+ {
+ dTHR;
+ if (lex_state != LEX_NOTPARSING)
+ SvOK_off(sv);
+ else if (in_eval)
+ sv_setiv(sv, 1);
+ else
+ sv_setiv(sv, 0);
+ }
break;
case '\024': /* ^T */
- sv_setiv(sv,(I32)basetime);
+#ifdef BIG_TIME
+ sv_setnv(sv, basetime);
+#else
+ sv_setiv(sv, (IV)basetime);
+#endif
break;
case '\027': /* ^W */
- sv_setiv(sv,(I32)dowarn);
+ sv_setiv(sv, (IV)dowarn);
break;
case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9': case '&':
- if (curpm) {
- paren = atoi(GvENAME(mg->mg_obj));
+ if (curpm && (rx = curpm->op_pmregexp)) {
+ /*
+ * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj));
+ * XXX Does the new way break anything?
+ */
+ paren = atoi(mg->mg_ptr);
getparen:
- if (curpm->op_pmregexp &&
- paren <= curpm->op_pmregexp->nparens &&
- (s = curpm->op_pmregexp->startp[paren]) &&
- (t = curpm->op_pmregexp->endp[paren]) ) {
+ if (paren <= rx->nparens &&
+ (s = rx->startp[paren]) &&
+ (t = rx->endp[paren]))
+ {
i = t - s;
+ getrx:
if (i >= 0) {
- MAGIC *tmg;
+ bool was_tainted;
+ if (tainting) {
+ was_tainted = tainted;
+ tainted = FALSE;
+ }
sv_setpvn(sv,s,i);
- if (tainting && (tmg = mg_find(sv,'t')))
- tmg->mg_len = 0; /* guarantee $1 untainted */
+ if (tainting)
+ tainted = was_tainted || RX_MATCH_TAINTED(rx);
break;
}
}
sv_setsv(sv,&sv_undef);
break;
case '+':
- if (curpm) {
- paren = curpm->op_pmregexp->lastparen;
+ if (curpm && (rx = curpm->op_pmregexp)) {
+ paren = rx->lastparen;
if (paren)
goto getparen;
}
sv_setsv(sv,&sv_undef);
break;
case '`':
- if (curpm) {
- if (curpm->op_pmregexp &&
- (s = curpm->op_pmregexp->subbeg) ) {
- i = curpm->op_pmregexp->startp[0] - s;
- if (i >= 0) {
- sv_setpvn(sv,s,i);
- break;
- }
+ if (curpm && (rx = curpm->op_pmregexp)) {
+ if ((s = rx->subbeg) && rx->startp[0]) {
+ i = rx->startp[0] - s;
+ goto getrx;
}
}
sv_setsv(sv,&sv_undef);
break;
case '\'':
- if (curpm) {
- if (curpm->op_pmregexp &&
- (s = curpm->op_pmregexp->endp[0]) ) {
- sv_setpvn(sv,s, curpm->op_pmregexp->subend - s);
- break;
+ if (curpm && (rx = curpm->op_pmregexp)) {
+ if (rx->subend && (s = rx->endp[0])) {
+ i = rx->subend - s;
+ goto getrx;
}
}
sv_setsv(sv,&sv_undef);
case '.':
#ifndef lint
if (GvIO(last_in_gv)) {
- sv_setiv(sv,(I32)IoLINES(GvIO(last_in_gv)));
+ sv_setiv(sv, (IV)IoLINES(GvIO(last_in_gv)));
}
#endif
break;
case '?':
- sv_setiv(sv,(I32)statusvalue);
+ {
+ dTHR;
+ sv_setiv(sv, (IV)STATUS_CURRENT);
+#ifdef COMPLEX_STATUS
+ LvTARGOFF(sv) = statusvalue;
+ LvTARGLEN(sv) = statusvalue_vms;
+#endif
+ }
break;
case '^':
s = IoTOP_NAME(GvIOp(defoutgv));
break;
#ifndef lint
case '=':
- sv_setiv(sv,(I32)IoPAGE_LEN(GvIOp(defoutgv)));
+ sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(defoutgv)));
break;
case '-':
- sv_setiv(sv,(I32)IoLINES_LEFT(GvIOp(defoutgv)));
+ sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(defoutgv)));
break;
case '%':
- sv_setiv(sv,(I32)IoPAGE(GvIOp(defoutgv)));
+ sv_setiv(sv, (IV)IoPAGE(GvIOp(defoutgv)));
break;
#endif
case ':':
case '/':
break;
case '[':
- sv_setiv(sv,(I32)curcop->cop_arybase);
+ WITH_THR(sv_setiv(sv, (IV)curcop->cop_arybase));
break;
case '|':
- sv_setiv(sv, (IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 );
+ sv_setiv(sv, (IV)(IoFLAGS(GvIOp(defoutgv)) & IOf_FLUSH) != 0 );
break;
case ',':
sv_setpvn(sv,ofs,ofslen);
break;
case '!':
#ifdef VMS
- sv_setnv(sv,(double)((errno == EVMSERR) ? vaxc$errno : errno));
+ sv_setnv(sv, (double)((errno == EVMSERR) ? vaxc$errno : errno));
+ sv_setpv(sv, errno ? Strerror(errno) : "");
#else
- sv_setnv(sv,(double)errno);
+ {
+ int saveerrno = errno;
+ sv_setnv(sv, (double)errno);
+#ifdef OS2
+ if (errno == errno_isOS2) sv_setpv(sv, os2error(Perl_rc));
+ else
#endif
sv_setpv(sv, errno ? Strerror(errno) : "");
+ errno = saveerrno;
+ }
+#endif
SvNOK_on(sv); /* what a wonderful hack! */
break;
case '<':
- sv_setiv(sv,(I32)uid);
+ sv_setiv(sv, (IV)uid);
break;
case '>':
- sv_setiv(sv,(I32)euid);
+ sv_setiv(sv, (IV)euid);
break;
case '(':
- s = buf;
- (void)sprintf(s,"%d",(int)gid);
+ sv_setiv(sv, (IV)gid);
+ sv_setpvf(sv, "%Vd", (IV)gid);
goto add_groups;
case ')':
- s = buf;
- (void)sprintf(s,"%d",(int)egid);
+ sv_setiv(sv, (IV)egid);
+ sv_setpvf(sv, "%Vd", (IV)egid);
add_groups:
- while (*s) s++;
#ifdef HAS_GETGROUPS
-#ifndef NGROUPS
-#define NGROUPS 32
-#endif
{
Groups_t gary[NGROUPS];
-
i = getgroups(NGROUPS,gary);
- while (--i >= 0) {
- (void)sprintf(s," %ld", (long)gary[i]);
- while (*s) s++;
- }
+ while (--i >= 0)
+ sv_catpvf(sv, " %Vd", (IV)gary[i]);
}
#endif
- sv_setpv(sv,buf);
+ SvIOK_on(sv); /* what a wonderful hack! */
break;
case '*':
break;
case '0':
break;
+#ifdef USE_THREADS
+ case '@':
+ sv_setsv(sv, thr->errsv);
+ break;
+#endif /* USE_THREADS */
}
return 0;
}
int
-magic_getuvar(sv, mg)
-SV *sv;
-MAGIC *mg;
+magic_getuvar(SV *sv, MAGIC *mg)
{
struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr;
}
int
-magic_setenv(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_setenv(SV *sv, MAGIC *mg)
{
register char *s;
- STRLEN len;
+ char *ptr;
+ STRLEN len, klen;
I32 i;
+
s = SvPV(sv,len);
- my_setenv(mg->mg_ptr,s);
+ ptr = MgPV(mg,klen);
+ my_setenv(ptr, s);
+
#ifdef DYNAMIC_ENV_FETCH
/* We just undefd an environment var. Is a replacement */
/* waiting in the wings? */
if (!len) {
- SV **envsvp;
- if (envsvp = hv_fetch(GvHVn(envgv),mg->mg_ptr,mg->mg_len,FALSE))
- s = SvPV(*envsvp,len);
+ SV **valp;
+ if ((valp = hv_fetch(GvHVn(envgv), ptr, klen, FALSE)))
+ s = SvPV(*valp, len);
}
#endif
+
+#if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32)
/* And you'll never guess what the dog had */
/* in its mouth... */
if (tainting) {
- if (s && strEQ(mg->mg_ptr,"PATH")) {
+ MgTAINTEDDIR_off(mg);
+#ifdef VMS
+ if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) {
+ char pathbuf[256], eltbuf[256], *cp, *elt = s;
+ struct stat sbuf;
+ int i = 0, j = 0;
+
+ do { /* DCL$PATH may be a search list */
+ while (1) { /* as may dev portion of any element */
+ if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) {
+ if ( *(cp+1) == '.' || *(cp+1) == '-' ||
+ cando_by_name(S_IWUSR,0,elt) ) {
+ MgTAINTEDDIR_on(mg);
+ return 0;
+ }
+ }
+ if ((cp = strchr(elt, ':')) != Nullch)
+ *cp = '\0';
+ if (my_trnlnm(elt, eltbuf, j++))
+ elt = eltbuf;
+ else
+ break;
+ }
+ j = 0;
+ } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf));
+ }
+#endif /* VMS */
+ if (s && klen == 4 && strEQ(ptr,"PATH")) {
char *strend = s + len;
while (s < strend) {
- s = cpytill(tokenbuf,s,strend,':',&i);
+ char tmpbuf[256];
+ struct stat st;
+ s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf,
+ s, strend, ':', &i);
s++;
- if (*tokenbuf != '/'
- || (Stat(tokenbuf,&statbuf) && (statbuf.st_mode & 2)) )
+ if (i >= sizeof tmpbuf /* too long -- assume the worst */
+ || *tmpbuf != '/'
+ || (Stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) {
MgTAINTEDDIR_on(mg);
+ return 0;
+ }
}
}
}
+#endif /* neither OS2 nor AMIGAOS nor WIN32 */
+
return 0;
}
int
-magic_clearenv(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_clearenv(SV *sv, MAGIC *mg)
{
- my_setenv(mg->mg_ptr,Nullch);
+ my_setenv(MgPV(mg,na),Nullch);
return 0;
}
-#ifdef HAS_SIGACTION
-/* set up reliable signal() clone */
-
-typedef void (*Sigfunc) _((int));
-
-static
-Sigfunc rsignal(signo,handler)
-int signo;
-Sigfunc handler;
+int
+magic_set_all_env(SV *sv, MAGIC *mg)
{
- struct sigaction act,oact;
-
- act.sa_handler = handler;
- sigemptyset(&act.sa_mask);
- act.sa_flags = 0;
-#ifdef SIGALRM
- if (signo == SIGALRM) {
+#if defined(VMS)
+ die("Can't make list assignment to %%ENV on this system");
#else
- if (0) {
-#endif
-#ifdef SA_INTERRUPT
- act.sa_flags |= SA_INTERRUPT; /* SunOS */
-#endif
- } else {
-#ifdef SA_RESTART
- act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */
-#endif
+ dTHR;
+ if (localizing) {
+ HE* entry;
+ magic_clear_all_env(sv,mg);
+ hv_iterinit((HV*)sv);
+ while (entry = hv_iternext((HV*)sv)) {
+ I32 keylen;
+ my_setenv(hv_iterkey(entry, &keylen),
+ SvPV(hv_iterval((HV*)sv, entry), na));
+ }
}
- if (sigaction(signo, &act, &oact) < 0)
- return(SIG_ERR);
- else
- return(oact.sa_handler);
+#endif
+ return 0;
}
+int
+magic_clear_all_env(SV *sv, MAGIC *mg)
+{
+#if defined(VMS)
+ die("Can't make list assignment to %%ENV on this system");
#else
+#ifdef WIN32
+ char *envv = GetEnvironmentStrings();
+ char *cur = envv;
+ STRLEN len;
+ while (*cur) {
+ char *end = strchr(cur,'=');
+ if (end && end != cur) {
+ *end = '\0';
+ my_setenv(cur,Nullch);
+ *end = '=';
+ cur += strlen(end+1)+1;
+ }
+ else if ((len = strlen(cur)))
+ cur += len+1;
+ }
+ FreeEnvironmentStrings(envv);
+#else
+ I32 i;
-/* ah well, so much for reliability */
-
-#define rsignal(x,y) signal(x,y)
+ if (environ == origenviron)
+ New(901, environ, 1, char*);
+ else
+ for (i = 0; environ[i]; i++)
+ Safefree(environ[i]);
+ environ[0] = Nullch;
#endif
+#endif
+ return 0;
+}
+int
+magic_getsig(SV *sv, MAGIC *mg)
+{
+ I32 i;
+ /* Are we fetching a signal entry? */
+ i = whichsig(MgPV(mg,na));
+ if (i) {
+ if(psig_ptr[i])
+ sv_setsv(sv,psig_ptr[i]);
+ else {
+ Sighandler_t sigstate = rsignal_state(i);
+
+ /* cache state so we don't fetch it again */
+ if(sigstate == SIG_IGN)
+ sv_setpv(sv,"IGNORE");
+ else
+ sv_setsv(sv,&sv_undef);
+ psig_ptr[i] = SvREFCNT_inc(sv);
+ SvTEMP_off(sv);
+ }
+ }
+ return 0;
+}
+int
+magic_clearsig(SV *sv, MAGIC *mg)
+{
+ I32 i;
+ /* Are we clearing a signal entry? */
+ i = whichsig(MgPV(mg,na));
+ if (i) {
+ if(psig_ptr[i]) {
+ SvREFCNT_dec(psig_ptr[i]);
+ psig_ptr[i]=0;
+ }
+ if(psig_name[i]) {
+ SvREFCNT_dec(psig_name[i]);
+ psig_name[i]=0;
+ }
+ }
+ return 0;
+}
int
-magic_setsig(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_setsig(SV *sv, MAGIC *mg)
{
+ dTHR;
register char *s;
I32 i;
SV** svp;
- s = mg->mg_ptr;
+ s = MgPV(mg,na);
if (*s == '_') {
if (strEQ(s,"__DIE__"))
svp = &diehook;
warn("No such signal: SIG%s", s);
return 0;
}
+ SvREFCNT_dec(psig_name[i]);
+ SvREFCNT_dec(psig_ptr[i]);
+ psig_ptr[i] = SvREFCNT_inc(sv);
+ SvTEMP_off(sv); /* Make sure it doesn't go away on us */
+ psig_name[i] = newSVpv(s, strlen(s));
+ SvREADONLY_on(psig_name[i]);
}
if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) {
if (i)
- (void)rsignal(i,sighandler);
+ (void)rsignal(i, sighandlerp);
else
*svp = SvREFCNT_inc(sv);
return 0;
s = SvPV_force(sv,na);
if (strEQ(s,"IGNORE")) {
if (i)
- (void)rsignal(i,SIG_IGN);
+ (void)rsignal(i, SIG_IGN);
else
*svp = 0;
}
else if (strEQ(s,"DEFAULT") || !*s) {
if (i)
- (void)rsignal(i,SIG_DFL);
+ (void)rsignal(i, SIG_DFL);
else
*svp = 0;
}
else {
- if (!strchr(s,':') && !strchr(s,'\'')) {
- sprintf(tokenbuf, "main::%s",s);
- sv_setpv(sv,tokenbuf);
- }
+ /*
+ * 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,'\''))
+ sv_setpv(sv, form("main::%s", s));
if (i)
- (void)rsignal(i,sighandler);
+ (void)rsignal(i, sighandlerp);
else
*svp = SvREFCNT_inc(sv);
}
}
int
-magic_setisa(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_setisa(SV *sv, MAGIC *mg)
{
+ HV *stash;
+ SV **svp;
+ I32 fill;
+ HV *basefields = Nullhv;
+ GV **gvp;
+ GV *gv;
+ HE *he;
+ static char *FIELDS = "FIELDS";
+
sub_generation++;
+
+ if (mg->mg_type == 'i')
+ return 0; /* Ignore lower-case version of the magic */
+
+ stash = GvSTASH(mg->mg_obj);
+ svp = AvARRAY((AV*)sv);
+
+ for (fill = AvFILL((AV*)sv); fill >= 0; fill--, svp++) {
+ HV *basestash = gv_stashsv(*svp, FALSE);
+
+ if (!basestash) {
+ if (dowarn)
+ warn("No such package \"%_\" in @ISA assignment", *svp);
+ continue;
+ }
+ gvp = (GV**)hv_fetch(basestash, FIELDS, 6, FALSE);
+ if (gvp && *gvp && GvHV(*gvp)) {
+ if (basefields)
+ croak("Can't multiply inherit %%FIELDS");
+ basefields = GvHV(*gvp);
+ }
+ }
+
+ if (!basefields)
+ return 0;
+
+ gv = (GV*)*hv_fetch(stash, FIELDS, 6, TRUE);
+ if (!isGV(gv))
+ gv_init(gv, stash, FIELDS, 6, TRUE);
+ if (!GvHV(gv))
+ GvHV(gv) = newHV();
+ if (HvKEYS(GvHV(gv)))
+ croak("Inherited %%FIELDS can't override existing %%FIELDS");
+
+ hv_iterinit(GvHV(gv));
+ while ((he = hv_iternext(basefields)))
+ hv_store(GvHV(gv), HeKEY(he), HeKLEN(he), HeVAL(he), HeHASH(he));
+
return 0;
}
#ifdef OVERLOAD
int
-magic_setamagic(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_setamagic(SV *sv, MAGIC *mg)
{
/* HV_badAMAGIC_on(Sv_STASH(sv)); */
amagic_generation++;
}
#endif /* OVERLOAD */
+int
+magic_setnkeys(SV *sv, MAGIC *mg)
+{
+ if (LvTARG(sv)) {
+ hv_ksplit((HV*)LvTARG(sv), SvIV(sv));
+ LvTARG(sv) = Nullsv; /* Don't allow a ref to reassign this. */
+ }
+ return 0;
+}
+
static int
-magic_methpack(sv,mg,meth)
-SV* sv;
-MAGIC* mg;
-char *meth;
+magic_methpack(SV *sv, MAGIC *mg, char *meth)
{
dSP;
PUSHMARK(sp);
EXTEND(sp, 2);
PUSHs(mg->mg_obj);
- if (mg->mg_ptr)
- PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len)));
+ if (mg->mg_ptr) {
+ if (mg->mg_len >= 0)
+ PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len)));
+ else if (mg->mg_len == HEf_SVKEY)
+ PUSHs((SV*)mg->mg_ptr);
+ }
else if (mg->mg_type == 'p')
PUSHs(sv_2mortal(newSViv(mg->mg_len)));
PUTBACK;
}
int
-magic_getpack(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_getpack(SV *sv, MAGIC *mg)
{
magic_methpack(sv,mg,"FETCH");
if (mg->mg_ptr)
}
int
-magic_setpack(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_setpack(SV *sv, MAGIC *mg)
{
dSP;
PUSHMARK(sp);
EXTEND(sp, 3);
PUSHs(mg->mg_obj);
- if (mg->mg_ptr)
- PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len)));
+ if (mg->mg_ptr) {
+ if (mg->mg_len >= 0)
+ PUSHs(sv_2mortal(newSVpv(mg->mg_ptr, mg->mg_len)));
+ else if (mg->mg_len == HEf_SVKEY)
+ PUSHs((SV*)mg->mg_ptr);
+ }
else if (mg->mg_type == 'p')
PUSHs(sv_2mortal(newSViv(mg->mg_len)));
PUSHs(sv);
}
int
-magic_clearpack(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_clearpack(SV *sv, MAGIC *mg)
{
return magic_methpack(sv,mg,"DELETE");
}
-int magic_wipepack(sv,mg)
-SV* sv;
-MAGIC* mg;
+int magic_wipepack(SV *sv, MAGIC *mg)
{
dSP;
}
int
-magic_nextpack(sv,mg,key)
-SV* sv;
-MAGIC* mg;
-SV* key;
+magic_nextpack(SV *sv, MAGIC *mg, SV *key)
{
dSP;
char *meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY";
}
int
-magic_existspack(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_existspack(SV *sv, MAGIC *mg)
{
return magic_methpack(sv,mg,"EXISTS");
}
int
-magic_setdbline(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_setdbline(SV *sv, MAGIC *mg)
{
+ dTHR;
OP *o;
I32 i;
GV* gv;
gv = DBline;
i = SvTRUE(sv);
- svp = av_fetch(GvAV(gv),atoi(mg->mg_ptr), FALSE);
+ svp = av_fetch(GvAV(gv),
+ atoi(MgPV(mg,na)), FALSE);
if (svp && SvIOKp(*svp) && (o = (OP*)SvSTASH(*svp)))
o->op_private = i;
else
}
int
-magic_getarylen(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_getarylen(SV *sv, MAGIC *mg)
{
+ dTHR;
sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + curcop->cop_arybase);
return 0;
}
int
-magic_setarylen(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_setarylen(SV *sv, MAGIC *mg)
{
+ dTHR;
av_fill((AV*)mg->mg_obj, SvIV(sv) - curcop->cop_arybase);
return 0;
}
int
-magic_getpos(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_getpos(SV *sv, MAGIC *mg)
{
SV* lsv = LvTARG(sv);
if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) {
mg = mg_find(lsv, 'g');
if (mg && mg->mg_len >= 0) {
+ dTHR;
sv_setiv(sv, mg->mg_len + curcop->cop_arybase);
return 0;
}
}
int
-magic_setpos(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_setpos(SV *sv, MAGIC *mg)
{
SV* lsv = LvTARG(sv);
SSize_t pos;
}
len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv);
- pos = SvIV(sv) - curcop->cop_arybase;
+ WITH_THR(pos = SvIV(sv) - curcop->cop_arybase);
if (pos < 0) {
pos += len;
if (pos < 0)
else if (pos > len)
pos = len;
mg->mg_len = pos;
+ mg->mg_flags &= ~MGf_MINMATCH;
return 0;
}
int
-magic_getglob(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_getglob(SV *sv, MAGIC *mg)
{
- gv_efullname(sv,((GV*)sv));/* a gv value, be nice */
+ if (SvFAKE(sv)) { /* FAKE globs can get coerced */
+ SvFAKE_off(sv);
+ gv_efullname3(sv,((GV*)sv), "*");
+ SvFAKE_on(sv);
+ }
+ else
+ gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */
return 0;
}
int
-magic_setglob(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_setglob(SV *sv, MAGIC *mg)
{
register char *s;
GV* gv;
if (sv == (SV*)gv)
return 0;
if (GvGP(sv))
- gp_free(sv);
+ gp_free((GV*)sv);
GvGP(sv) = gp_ref(GvGP(gv));
- if (!GvAV(gv))
- gv_AVadd(gv);
- if (!GvHV(gv))
- gv_HVadd(gv);
- if (!GvIOp(gv))
- GvIOp(gv) = newIO();
return 0;
}
int
-magic_setsubstr(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_setsubstr(SV *sv, MAGIC *mg)
{
STRLEN len;
char *tmps = SvPV(sv,len);
}
int
-magic_gettaint(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_gettaint(SV *sv, MAGIC *mg)
{
- if (mg->mg_len & 1)
- tainted = TRUE;
- else if (mg->mg_len & 2 && mg->mg_obj == sv) /* kludge */
- tainted = TRUE;
+ dTHR;
+ TAINT_IF((mg->mg_len & 1) ||
+ (mg->mg_len & 2) && mg->mg_obj == sv); /* kludge */
return 0;
}
int
-magic_settaint(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_settaint(SV *sv, MAGIC *mg)
{
+ dTHR;
if (localizing) {
if (localizing == 1)
mg->mg_len <<= 1;
}
int
-magic_setvec(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_setvec(SV *sv, MAGIC *mg)
{
do_vecset(sv); /* XXX slurp this routine */
return 0;
}
int
-magic_setmglob(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_getdefelem(SV *sv, MAGIC *mg)
+{
+ SV *targ = Nullsv;
+ if (LvTARGLEN(sv)) {
+ if (mg->mg_obj) {
+ HV* hv = (HV*)LvTARG(sv);
+ HE* he = hv_fetch_ent(hv, mg->mg_obj, FALSE, 0);
+ if (he)
+ targ = HeVAL(he);
+ }
+ else {
+ AV* av = (AV*)LvTARG(sv);
+ if ((I32)LvTARGOFF(sv) <= AvFILL(av))
+ targ = AvARRAY(av)[LvTARGOFF(sv)];
+ }
+ if (targ && targ != &sv_undef) {
+ dTHR; /* just for SvREFCNT_dec */
+ /* somebody else defined it for us */
+ SvREFCNT_dec(LvTARG(sv));
+ LvTARG(sv) = SvREFCNT_inc(targ);
+ LvTARGLEN(sv) = 0;
+ SvREFCNT_dec(mg->mg_obj);
+ mg->mg_obj = Nullsv;
+ mg->mg_flags &= ~MGf_REFCOUNTED;
+ }
+ }
+ else
+ targ = LvTARG(sv);
+ sv_setsv(sv, targ ? targ : &sv_undef);
+ return 0;
+}
+
+int
+magic_setdefelem(SV *sv, MAGIC *mg)
+{
+ if (LvTARGLEN(sv))
+ vivify_defelem(sv);
+ if (LvTARG(sv)) {
+ sv_setsv(LvTARG(sv), sv);
+ SvSETMAGIC(LvTARG(sv));
+ }
+ return 0;
+}
+
+int
+magic_freedefelem(SV *sv, MAGIC *mg)
+{
+ SvREFCNT_dec(LvTARG(sv));
+ return 0;
+}
+
+void
+vivify_defelem(SV *sv)
+{
+ dTHR; /* just for SvREFCNT_inc and SvREFCNT_dec*/
+ MAGIC* mg;
+ SV* value;
+
+ if (!LvTARGLEN(sv) || !(mg = mg_find(sv, 'y')))
+ return;
+ if (mg->mg_obj) {
+ HV* hv = (HV*)LvTARG(sv);
+ HE* he = hv_fetch_ent(hv, mg->mg_obj, TRUE, 0);
+ if (!he || (value = HeVAL(he)) == &sv_undef)
+ croak(no_helem, SvPV(mg->mg_obj, na));
+ }
+ else {
+ AV* av = (AV*)LvTARG(sv);
+ if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av))
+ LvTARG(sv) = Nullsv; /* array can't be extended */
+ else {
+ SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE);
+ if (!svp || (value = *svp) == &sv_undef)
+ croak(no_aelem, (I32)LvTARGOFF(sv));
+ }
+ }
+ (void)SvREFCNT_inc(value);
+ SvREFCNT_dec(LvTARG(sv));
+ LvTARG(sv) = value;
+ LvTARGLEN(sv) = 0;
+ SvREFCNT_dec(mg->mg_obj);
+ mg->mg_obj = Nullsv;
+ mg->mg_flags &= ~MGf_REFCOUNTED;
+}
+
+int
+magic_setmglob(SV *sv, MAGIC *mg)
{
mg->mg_len = -1;
SvSCREAM_off(sv);
}
int
-magic_setbm(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_setbm(SV *sv, MAGIC *mg)
{
sv_unmagic(sv, 'B');
SvVALID_off(sv);
}
int
-magic_setuvar(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_setfm(SV *sv, MAGIC *mg)
+{
+ sv_unmagic(sv, 'f');
+ SvCOMPILED_off(sv);
+ return 0;
+}
+
+int
+magic_setuvar(SV *sv, MAGIC *mg)
{
struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr;
}
int
-magic_set(sv,mg)
-SV* sv;
-MAGIC* mg;
+magic_freeregexp(SV *sv, MAGIC *mg)
+{
+ regexp *re = (regexp *)mg->mg_obj;
+ ReREFCNT_dec(re);
+ return 0;
+}
+
+#ifdef USE_LOCALE_COLLATE
+int
+magic_setcollxfrm(SV *sv, MAGIC *mg)
+{
+ /*
+ * René Descartes said "I think not."
+ * and vanished with a faint plop.
+ */
+ if (mg->mg_ptr) {
+ Safefree(mg->mg_ptr);
+ mg->mg_ptr = NULL;
+ mg->mg_len = -1;
+ }
+ return 0;
+}
+#endif /* USE_LOCALE_COLLATE */
+
+int
+magic_set(SV *sv, MAGIC *mg)
{
+ dTHR;
register char *s;
I32 i;
STRLEN len;
debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | 0x80000000;
DEBUG_x(dump_all());
break;
+ case '\005': /* ^E */
+#ifdef VMS
+ set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
+#else
+ /* will anyone ever use this? */
+ SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4);
+#endif
+ break;
case '\006': /* ^F */
maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
break;
else
inplace = Nullch;
break;
+ case '\017': /* ^O */
+ if (osname)
+ Safefree(osname);
+ if (SvOK(sv))
+ osname = savepv(SvPV(sv,na));
+ else
+ osname = Nullch;
+ break;
case '\020': /* ^P */
- i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
- if (i != perldb) {
- if (perldb)
- oldlastpm = curpm;
- else
- curpm = oldlastpm;
- }
- perldb = i;
+ perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
break;
case '\024': /* ^T */
+#ifdef BIG_TIME
+ basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv));
+#else
basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
+#endif
break;
case '\027': /* ^W */
dowarn = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
if (localizing == 1)
save_sptr((SV**)&last_in_gv);
}
- else if (SvOK(sv))
+ else if (SvOK(sv) && GvIO(last_in_gv))
IoLINES(GvIOp(last_in_gv)) = (long)SvIV(sv);
break;
case '^':
IoPAGE(GvIOp(defoutgv)) = (long)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
break;
case '|':
- IoFLAGS(GvIOp(defoutgv)) &= ~IOf_FLUSH;
- if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) != 0) {
- IoFLAGS(GvIOp(defoutgv)) |= IOf_FLUSH;
+ {
+ IO *io = GvIOp(defoutgv);
+ if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0)
+ IoFLAGS(io) &= ~IOf_FLUSH;
+ else {
+ if (!(IoFLAGS(io) & IOf_FLUSH)) {
+ PerlIO *ofp = IoOFP(io);
+ if (ofp)
+ (void)PerlIO_flush(ofp);
+ IoFLAGS(io) |= IOf_FLUSH;
+ }
+ }
}
break;
case '*':
case '\\':
if (ors)
Safefree(ors);
- ors = savepv(SvPV(sv,orslen));
+ if (SvOK(sv) || SvGMAGICAL(sv))
+ ors = savepv(SvPV(sv,orslen));
+ else {
+ ors = Nullch;
+ orslen = 0;
+ }
break;
case ',':
if (ofs)
compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
break;
case '?':
- statusvalue = FIXSTATUS(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
+#ifdef COMPLEX_STATUS
+ if (localizing == 2) {
+ statusvalue = LvTARGOFF(sv);
+ statusvalue_vms = LvTARGLEN(sv);
+ }
+ else
+#endif
+#ifdef VMSISH_STATUS
+ if (VMSISH_STATUS)
+ STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)));
+ else
+#endif
+ STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
break;
case '!':
- SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv),4); /* will anyone ever use this? */
+ SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv),
+ (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno);
break;
case '<':
uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
tainting |= (uid && (euid != uid || egid != gid));
break;
case ')':
+#ifdef HAS_SETGROUPS
+ {
+ char *p = SvPV(sv, na);
+ Groups_t gary[NGROUPS];
+
+ SET_NUMERIC_STANDARD();
+ while (isSPACE(*p))
+ ++p;
+ egid = I_V(atof(p));
+ for (i = 0; i < NGROUPS; ++i) {
+ while (*p && !isSPACE(*p))
+ ++p;
+ while (isSPACE(*p))
+ ++p;
+ if (!*p)
+ break;
+ gary[i] = I_V(atof(p));
+ }
+ if (i)
+ (void)setgroups(i, gary);
+ }
+#else /* HAS_SETGROUPS */
egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv);
+#endif /* HAS_SETGROUPS */
if (delaymagic) {
delaymagic |= DM_EGID;
break; /* don't do magic till later */
s += strlen(s);
/* See if all the arguments are contiguous in memory */
for (i = 1; i < origargc; i++) {
- if (origargv[i] == s + 1)
+ if (origargv[i] == s + 1
+#ifdef OS2
+ || origargv[i] == s + 2
+#endif
+ )
s += strlen(++s); /* this one is ok too */
+ else
+ break;
}
- if (origenviron[0] == s + 1) { /* can grab env area too? */
- my_setenv("NoNeSuCh", Nullch);
+ /* can grab env area too? */
+ if (origenviron && (origenviron[0] == s + 1
+#ifdef OS2
+ || (origenviron[0] == s + 9 && (s += 8))
+#endif
+ )) {
+ my_setenv("NoNe SuCh", Nullch);
/* force copy of environment */
for (i = 0; origenviron[i]; i++)
if (origenviron[i] == s + 1)
s += strlen(++s);
+ else
+ break;
}
origalen = s - origargv[0];
}
i = len;
if (i >= origalen) {
i = origalen;
- SvCUR_set(sv, i);
- *SvEND(sv) = '\0';
+ /* don't allow system to limit $0 seen by script */
+ /* SvCUR_set(sv, i); *SvEND(sv) = '\0'; */
Copy(s, origargv[0], i, char);
+ s = origargv[0]+i;
+ *s = '\0';
}
else {
Copy(s, origargv[0], i, char);
origargv[i] = Nullch;
}
break;
+#ifdef USE_THREADS
+ case '@':
+ sv_setsv(thr->errsv, sv);
+ break;
+#endif /* USE_THREADS */
}
return 0;
}
+#ifdef USE_THREADS
+int
+magic_mutexfree(SV *sv, MAGIC *mg)
+{
+ dTHR;
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: magic_mutexfree 0x%lx\n",
+ (unsigned long)thr, (unsigned long)sv);)
+ if (MgOWNER(mg))
+ croak("panic: magic_mutexfree");
+ MUTEX_DESTROY(MgMUTEXP(mg));
+ COND_DESTROY(MgCONDP(mg));
+ SvREFCNT_dec(sv);
+ return 0;
+}
+#endif /* USE_THREADS */
+
I32
-whichsig(sig)
-char *sig;
+whichsig(char *sig)
{
register char **sigv;
return 0;
}
+static SV* sig_sv;
+
+static void
+unwind_handler_stack(void *p)
+{
+ dTHR;
+ U32 flags = *(U32*)p;
+
+ if (flags & 1)
+ savestack_ix -= 5; /* Unprotect save in progress. */
+ /* cxstack_ix-- Not needed, die already unwound it. */
+ if (flags & 64)
+ SvREFCNT_dec(sig_sv);
+}
+
Signal_t
-sighandler(sig)
-int sig;
+sighandler(int sig)
{
dSP;
- GV *gv;
+ GV *gv = Nullgv;
HV *st;
- SV *sv;
- CV *cv;
+ SV *sv, *tSv = Sv;
+ CV *cv = Nullcv;
AV *oldstack;
- char *signame;
-
-#ifdef OS2 /* or anybody else who requires SIG_ACK */
- signal(sig, SIG_ACK);
-#endif
-
- signame = sig_name[sig];
- cv = sv_2cv(*hv_fetch(GvHVn(siggv),signame,strlen(signame),
- TRUE),
- &st, &gv, TRUE);
- if (!cv || !CvROOT(cv) &&
- *signame == 'C' && instr(signame,"LD")) {
-
- if (signame[1] == 'H')
- cv = sv_2cv(*hv_fetch(GvHVn(siggv),"CLD",3,TRUE),
- &st, &gv, TRUE);
- else
- cv = sv_2cv(*hv_fetch(GvHVn(siggv),"CHLD",4,TRUE),
- &st, &gv, TRUE);
- /* gag */
+ OP *myop = op;
+ U32 flags = 0;
+ I32 o_save_i = savestack_ix, type;
+ PERL_CONTEXT *cx;
+ XPV *tXpv = Xpv;
+
+ if (savestack_ix + 15 <= savestack_max)
+ flags |= 1;
+ if (cxstack_ix < cxstack_max - 2)
+ flags |= 2;
+ if (markstack_ptr < markstack_max - 2)
+ flags |= 4;
+ if (retstack_ix < retstack_max - 2)
+ flags |= 8;
+ if (scopestack_ix < scopestack_max - 3)
+ flags |= 16;
+
+ if (flags & 2) { /* POPBLOCK may decrease cxstack too early. */
+ cxstack_ix++; /* Protect from overwrite. */
+ cx = &cxstack[cxstack_ix];
+ type = cx->cx_type; /* Can be during partial write. */
+ cx->cx_type = CXt_NULL; /* Make it safe for unwind. */
+ }
+ if (!psig_ptr[sig])
+ die("Signal SIG%s received, but no signal handler set.\n",
+ sig_name[sig]);
+
+ /* Max number of items pushed there is 3*n or 4. We cannot fix
+ infinity, so we fix 4 (in fact 5): */
+ if (flags & 1) {
+ savestack_ix += 5; /* Protect save in progress. */
+ o_save_i = savestack_ix;
+ SAVEDESTRUCTOR(unwind_handler_stack, (void*)&flags);
}
+ if (flags & 4)
+ markstack_ptr++; /* Protect mark. */
+ if (flags & 8) {
+ retstack_ix++;
+ retstack[retstack_ix] = NULL;
+ }
+ if (flags & 16)
+ scopestack_ix += 1;
+ /* sv_2cv is too complicated, try a simpler variant first: */
+ if (!SvROK(psig_ptr[sig]) || !(cv = (CV*)SvRV(psig_ptr[sig]))
+ || SvTYPE(cv) != SVt_PVCV)
+ cv = sv_2cv(psig_ptr[sig],&st,&gv,TRUE);
+
if (!cv || !CvROOT(cv)) {
if (dowarn)
warn("SIG%s handler \"%s\" not defined.\n",
- signame, GvENAME(gv) );
- return;
+ sig_name[sig], (gv ? GvENAME(gv)
+ : ((cv && CvGV(cv))
+ ? GvENAME(CvGV(cv))
+ : "__ANON__")));
+ goto cleanup;
}
- oldstack = stack;
- if (stack != signalstack)
+ oldstack = curstack;
+ if (curstack != signalstack)
AvFILL(signalstack) = 0;
- SWITCHSTACK(stack, signalstack);
+ SWITCHSTACK(curstack, signalstack);
- sv = sv_newmortal();
- sv_setpv(sv,signame);
+ if(psig_name[sig]) {
+ sv = SvREFCNT_inc(psig_name[sig]);
+ flags |= 64;
+ sig_sv = sv;
+ } else {
+ sv = sv_newmortal();
+ sv_setpv(sv,sig_name[sig]);
+ }
PUSHMARK(sp);
PUSHs(sv);
PUTBACK;
perl_call_sv((SV*)cv, G_DISCARD);
SWITCHSTACK(signalstack, oldstack);
-
+cleanup:
+ if (flags & 1)
+ savestack_ix -= 8; /* Unprotect save in progress. */
+ if (flags & 2) {
+ cxstack[cxstack_ix].cx_type = type;
+ cxstack_ix -= 1;
+ }
+ if (flags & 4)
+ markstack_ptr--;
+ if (flags & 8)
+ retstack_ix--;
+ if (flags & 16)
+ scopestack_ix -= 1;
+ if (flags & 64)
+ SvREFCNT_dec(sv);
+ op = myop; /* Apparently not needed... */
+
+ Sv = tSv; /* Restore global temporaries. */
+ Xpv = tXpv;
return;
}
+
+
projects / p5sagit/p5-mst-13.2.git / blobdiff