X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=perlio.c;h=7c16e435b0cfd1cc317e93a144f4951c34a8620d;hb=10cb7778b2425656148151f1517d115436333ccf;hp=ba91393203e76ff9f39913a86ba3991f76bc1d97;hpb=10eefe7f3dbf3fb8c327fd67268d0d5514fee92f;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/perlio.c b/perlio.c
index ba91393..7c16e43 100644
--- a/perlio.c
+++ b/perlio.c
@@ -38,6 +38,11 @@
 #define PERL_IN_PERLIO_C
 #include "perl.h"
 
+#ifdef PERL_IMPLICIT_CONTEXT
+#undef dSYS
+#define dSYS dTHX
+#endif
+
 #include "XSUB.h"
 
 int
@@ -173,8 +178,9 @@ PerlIO_binmode(pTHX_ PerlIO *fp, int iotype, int mode, const char *names)
 }
 
 PerlIO *
-PerlIO_fdupopen(pTHX_ PerlIO *f, CLONE_PARAMS *param)
+PerlIO_fdupopen(pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
 {
+#ifndef PERL_MICRO
     if (f) {
 	int fd = PerlLIO_dup(PerlIO_fileno(f));
 	if (fd >= 0) {
@@ -189,6 +195,7 @@ PerlIO_fdupopen(pTHX_ PerlIO *f, CLONE_PARAMS *param)
     else {
 	SETERRNO(EBADF, SS$_IVCHAN);
     }
+#endif
     return NULL;
 }
 
@@ -435,13 +442,13 @@ PerlIO_allocate(pTHX)
 
 #undef PerlIO_fdupopen
 PerlIO *
-PerlIO_fdupopen(pTHX_ PerlIO *f, CLONE_PARAMS *param)
+PerlIO_fdupopen(pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
 {
     if (f && *f) {
 	PerlIO_funcs *tab = PerlIOBase(f)->tab;
 	PerlIO *new;
 	PerlIO_debug("fdupopen f=%p param=%p\n",f,param);
-        new = (*tab->Dup)(aTHX_ PerlIO_allocate(aTHX),f,param);
+        new = (*tab->Dup)(aTHX_ PerlIO_allocate(aTHX),f,param, flags);
 	return new;
     }
     else {
@@ -517,13 +524,16 @@ PerlIO_list_push(pTHX_ PerlIO_list_t *list, PerlIO_funcs *funcs, SV *arg)
 PerlIO_list_t *
 PerlIO_clone_list(pTHX_ PerlIO_list_t *proto, CLONE_PARAMS *param)
 {
-    int i;
-    PerlIO_list_t *list = PerlIO_list_alloc(aTHX);
-    for (i=0; i < proto->cur; i++) {
-	SV *arg = Nullsv;
-	if (proto->array[i].arg)
-	    arg = PerlIO_sv_dup(aTHX_ proto->array[i].arg,param);
-	PerlIO_list_push(aTHX_ list, proto->array[i].funcs, arg);
+    PerlIO_list_t *list = (PerlIO_list_t *) NULL;
+    if (proto) {
+	int i;
+	list = PerlIO_list_alloc(aTHX);
+	for (i=0; i < proto->cur; i++) {
+	    SV *arg = Nullsv;
+	    if (proto->array[i].arg)
+		arg = PerlIO_sv_dup(aTHX_ proto->array[i].arg,param);
+	    PerlIO_list_push(aTHX_ list, proto->array[i].funcs, arg);
+	}
     }
     return list;
 }
@@ -538,12 +548,13 @@ PerlIO_clone(pTHX_ PerlInterpreter *proto, CLONE_PARAMS *param)
     PL_known_layers = PerlIO_clone_list(aTHX_ proto->Iknown_layers, param);
     PL_def_layerlist = PerlIO_clone_list(aTHX_ proto->Idef_layerlist, param);
     PerlIO_allocate(aTHX); /* root slot is never used */
+    PerlIO_debug("Clone %p from %p\n",aTHX,proto);
     while ((f = *table)) {
 	    int i;
 	    table = (PerlIO **) (f++);
 	    for (i = 1; i < PERLIO_TABLE_SIZE; i++) {
 		if (*f) {
-		    PerlIO_fdupopen(aTHX_ f, param);
+		    (void) fp_dup(f, 0, param);
 		}
 		f++;
 	    }
@@ -552,16 +563,13 @@ PerlIO_clone(pTHX_ PerlInterpreter *proto, CLONE_PARAMS *param)
 }
 
 void
-PerlIO_cleanup(pTHX)
-{
-    PerlIO_cleantable(aTHX_ &PL_perlio);
-}
-
-void
 PerlIO_destruct(pTHX)
 {
     PerlIO **table = &PL_perlio;
     PerlIO *f;
+#ifdef USE_ITHREADS
+    PerlIO_debug("Destruct %p\n",aTHX);
+#endif
     while ((f = *table)) {
 	int i;
 	table = (PerlIO **) (f++);
@@ -776,8 +784,8 @@ PerlIO_parse_layers(pTHX_ PerlIO_list_t *av, const char *names)
 		     */
 		    char q = ((*s == '\'') ? '"' : '\'');
 		    Perl_warn(aTHX_
-			      "perlio: invalid separator character %c%c%c in layer specification list",
-			      q, *s, q);
+			      "perlio: invalid separator character %c%c%c in layer specification list %s",
+			      q, *s, q, s);
 		    return -1;
 		}
 		do {
@@ -1064,16 +1072,19 @@ PerlIO_binmode(pTHX_ PerlIO *f, int iotype, int mode, const char *names)
     PerlIO_debug("PerlIO_binmode f=%p %s %c %x %s\n",
 		 f, PerlIOBase(f)->tab->name, iotype, mode,
 		 (names) ? names : "(Null)");
-    PerlIO_flush(f);
-    if (!names && (O_TEXT != O_BINARY && (mode & O_BINARY))) {
-	PerlIO *top = f;
-	while (*top) {
-	    if (PerlIOBase(top)->tab == &PerlIO_crlf) {
-		PerlIOBase(top)->flags &= ~PERLIO_F_CRLF;
-		break;
+    /* Can't flush if switching encodings. */
+    if (!(names && memEQ(names, ":encoding(", 10))) {
+        PerlIO_flush(f);
+	if (!names && (O_TEXT != O_BINARY && (mode & O_BINARY))) {
+	    PerlIO *top = f;
+	    while (*top) {
+	        if (PerlIOBase(top)->tab == &PerlIO_crlf) {
+		  PerlIOBase(top)->flags &= ~PERLIO_F_CRLF;
+		  break;
+		}
+		top = PerlIONext(top);
+		PerlIO_flush(top);
 	    }
-	    top = PerlIONext(top);
-	    PerlIO_flush(top);
 	}
     }
     return PerlIO_apply_layers(aTHX_ f, NULL, names) == 0 ? TRUE : FALSE;
@@ -1248,7 +1259,7 @@ PerlIO_openn(pTHX_ const char *layers, const char *mode, int fd,
 	    while (l) {
 		SV *arg =
 		    (l->tab->Getarg) ? (*l->tab->
-					Getarg) (&l) : &PL_sv_undef;
+					Getarg) (aTHX_ &l, NULL, 0) : &PL_sv_undef;
 		PerlIO_list_push(aTHX_ layera, l->tab, arg);
 		l = *PerlIONext(&l);
 	    }
@@ -1947,6 +1958,112 @@ PerlIOBase_setlinebuf(PerlIO *f)
     }
 }
 
+SV *
+PerlIO_sv_dup(pTHX_ SV *arg, CLONE_PARAMS *param)
+{
+    if (!arg)
+	return Nullsv;
+#ifdef sv_dup
+    if (param) {
+	return sv_dup(arg, param);
+    }
+    else {
+	return newSVsv(arg);
+    }
+#else
+    return newSVsv(arg);
+#endif
+}
+
+PerlIO *
+PerlIOBase_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, int flags)
+{
+    PerlIO *nexto = PerlIONext(o);
+    if (*nexto) {
+	PerlIO_funcs *tab = PerlIOBase(nexto)->tab;
+	f = (*tab->Dup)(aTHX_ f, nexto, param, flags);
+    }
+    if (f) {
+	PerlIO_funcs *self = PerlIOBase(o)->tab;
+	SV *arg = Nullsv;
+	char buf[8];
+	PerlIO_debug("PerlIOBase_dup %s f=%p o=%p param=%p\n",self->name,f,o,param);
+	if (self->Getarg) {
+	    arg = (*self->Getarg)(aTHX_ o,param,flags);
+	}
+	f = PerlIO_push(aTHX_ f, self, PerlIO_modestr(o,buf), arg);
+	if (arg) {
+	    SvREFCNT_dec(arg);
+	}
+    }
+    return f;
+}
+
+#define PERLIO_MAX_REFCOUNTABLE_FD 2048
+#ifdef USE_THREADS
+perl_mutex PerlIO_mutex;
+#endif
+int PerlIO_fd_refcnt[PERLIO_MAX_REFCOUNTABLE_FD];
+
+void
+PerlIO_init(pTHX)
+{
+ /* Place holder for stdstreams call ??? */
+#ifdef USE_THREADS
+ MUTEX_INIT(&PerlIO_mutex);
+#endif
+}
+
+void
+PerlIOUnix_refcnt_inc(int fd)
+{
+    if (fd >= 0 && fd < PERLIO_MAX_REFCOUNTABLE_FD) {
+#ifdef USE_THREADS
+	MUTEX_LOCK(&PerlIO_mutex);
+#endif
+	PerlIO_fd_refcnt[fd]++;
+	PerlIO_debug("fd %d refcnt=%d\n",fd,PerlIO_fd_refcnt[fd]);
+#ifdef USE_THREADS
+	MUTEX_UNLOCK(&PerlIO_mutex);
+#endif
+    }
+}
+
+int
+PerlIOUnix_refcnt_dec(int fd)
+{
+    int cnt = 0;
+    if (fd >= 0 && fd < PERLIO_MAX_REFCOUNTABLE_FD) {
+#ifdef USE_THREADS
+	MUTEX_LOCK(&PerlIO_mutex);
+#endif
+	cnt = --PerlIO_fd_refcnt[fd];
+	PerlIO_debug("fd %d refcnt=%d\n",fd,cnt);
+#ifdef USE_THREADS
+	MUTEX_UNLOCK(&PerlIO_mutex);
+#endif
+    }
+    return cnt;
+}
+
+void
+PerlIO_cleanup(pTHX)
+{
+    int i;
+#ifdef USE_ITHREADS
+    PerlIO_debug("Cleanup %p\n",aTHX);
+#endif
+    /* Raise STDIN..STDERR refcount so we don't close them */
+    for (i=0; i < 3; i++)
+	PerlIOUnix_refcnt_inc(i);
+    PerlIO_cleantable(aTHX_ &PL_perlio);
+    /* Restore STDIN..STDERR refcount */
+    for (i=0; i < 3; i++)
+	PerlIOUnix_refcnt_dec(i);
+}
+
+
+
 /*--------------------------------------------------------------------------------------*/
 /*
  * Bottom-most level for UNIX-like case
@@ -2024,8 +2141,8 @@ IV
 PerlIOUnix_pushed(PerlIO *f, const char *mode, SV *arg)
 {
     IV code = PerlIOBase_pushed(f, mode, arg);
+    PerlIOUnix *s = PerlIOSelf(f, PerlIOUnix);
     if (*PerlIONext(f)) {
-	PerlIOUnix *s = PerlIOSelf(f, PerlIOUnix);
 	s->fd = PerlIO_fileno(PerlIONext(f));
 	/*
 	 * XXX could (or should) we retrieve the oflags from the open file
@@ -2073,6 +2190,7 @@ PerlIOUnix_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers,
 	s->fd = fd;
 	s->oflags = imode;
 	PerlIOBase(f)->flags |= PERLIO_F_OPEN;
+        PerlIOUnix_refcnt_inc(fd);
 	return f;
     }
     else {
@@ -2085,66 +2203,23 @@ PerlIOUnix_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers,
     }
 }
 
-SV *
-PerlIO_sv_dup(pTHX_ SV *arg, CLONE_PARAMS *param)
-{
-    if (!arg)
-	return Nullsv;
-#ifdef sv_dup
-    if (param) {
-	return sv_dup(arg, param);
-    }
-    else {
-	return newSVsv(arg);
-    }
-#else
-    return newSVsv(arg);
-#endif
-}
-
 PerlIO *
-PerlIOBase_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param)
-{
-    PerlIO *nexto = PerlIONext(o);
-    if (*nexto) {
-	PerlIO_funcs *tab = PerlIOBase(nexto)->tab;
-	f = (*tab->Dup)(aTHX_ f, nexto, param);
-    }
-    if (f) {
-	PerlIO_funcs *self = PerlIOBase(o)->tab;
-	SV *arg = Nullsv;
-	char buf[8];
-	PerlIO_debug("PerlIOBase_dup %s f=%p o=%p param=%p\n",self->name,f,o,param);
-	if (self->Getarg) {
-	    arg = (*self->Getarg)(o);
-	    if (arg) {
-		arg = PerlIO_sv_dup(aTHX_ arg, param);
-	    }
-	}
-	f = PerlIO_push(aTHX_ f, self, PerlIO_modestr(o,buf), arg);
-	if (!f && arg) {
-	    SvREFCNT_dec(arg);
-	}
-    }
-    return f;
-}
-
-PerlIO *
-PerlIOUnix_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param)
+PerlIOUnix_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, int flags)
 {
     PerlIOUnix *os = PerlIOSelf(o, PerlIOUnix);
-    int fd = PerlLIO_dup(os->fd);
-    if (fd >= 0) {
-	f = PerlIOBase_dup(aTHX_ f, o, param);
+    int fd = os->fd;
+    if (flags & PERLIO_DUP_FD) {
+	fd = PerlLIO_dup(fd);
+    }
+    if (fd >= 0 && fd < PERLIO_MAX_REFCOUNTABLE_FD) {
+	f = PerlIOBase_dup(aTHX_ f, o, param, flags);
 	if (f) {
 	    /* If all went well overwrite fd in dup'ed lay with the dup()'ed fd */
 	    PerlIOUnix *s = PerlIOSelf(f, PerlIOUnix);
 	    s->fd = fd;
+	    PerlIOUnix_refcnt_inc(fd);
 	    return f;
 	}
-	else {
-	    PerlLIO_close(fd);
-	}
     }
     return NULL;
 }
@@ -2210,6 +2285,16 @@ PerlIOUnix_close(PerlIO *f)
     dTHX;
     int fd = PerlIOSelf(f, PerlIOUnix)->fd;
     int code = 0;
+    if (PerlIOBase(f)->flags & PERLIO_F_OPEN) {
+	if (PerlIOUnix_refcnt_dec(fd) > 0) {
+	    PerlIOBase(f)->flags &= ~PERLIO_F_OPEN;
+	    return 0;
+        }
+    }
+    else {
+	SETERRNO(EBADF,SS$_IVCHAN);
+	return -1;
+    }
     while (PerlLIO_close(fd) != 0) {
 	if (errno != EINTR) {
 	    code = -1;
@@ -2329,12 +2414,14 @@ PerlIOStdio_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers,
     if (f) {
 	char *path = SvPV_nolen(*args);
 	PerlIOStdio *s = PerlIOSelf(f, PerlIOStdio);
-	FILE *stdio =
-	    PerlSIO_freopen(path, (mode = PerlIOStdio_mode(mode, tmode)),
+	FILE *stdio;
+	PerlIOUnix_refcnt_dec(fileno(s->stdio));
+	stdio = PerlSIO_freopen(path, (mode = PerlIOStdio_mode(mode, tmode)),
 			    s->stdio);
 	if (!s->stdio)
 	    return NULL;
 	s->stdio = stdio;
+	PerlIOUnix_refcnt_inc(fileno(s->stdio));
 	return f;
     }
     else {
@@ -2354,6 +2441,7 @@ PerlIOStdio_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers,
 				    PerlIOArg),
 				   PerlIOStdio);
 		    s->stdio = stdio;
+		    PerlIOUnix_refcnt_inc(fileno(s->stdio));
 		}
 		return f;
 	    }
@@ -2388,6 +2476,7 @@ PerlIOStdio_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers,
 			       (aTHX_(f = PerlIO_allocate(aTHX)), self,
 				mode, PerlIOArg), PerlIOStdio);
 		s->stdio = stdio;
+		PerlIOUnix_refcnt_inc(fileno(s->stdio));
 		return f;
 	    }
 	}
@@ -2395,6 +2484,61 @@ PerlIOStdio_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers,
     return NULL;
 }
 
+PerlIO *
+PerlIOStdio_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, int flags)
+{
+    /* This assumes no layers underneath - which is what
+       happens, but is not how I remember it. NI-S 2001/10/16
+     */
+    if ((f = PerlIOBase_dup(aTHX_ f, o, param, flags))) {
+	FILE *stdio = PerlIOSelf(o, PerlIOStdio)->stdio;
+	if (flags & PERLIO_DUP_FD) {
+	    int fd = PerlLIO_dup(fileno(stdio));
+	    if (fd >= 0) {
+		char mode[8];
+		stdio = fdopen(fd, PerlIO_modestr(o,mode));
+	    }
+	    else {
+		/* FIXME: To avoid messy error recovery if dup fails
+		   re-use the existing stdio as though flag was not set
+		 */
+	    }
+	}
+	PerlIOSelf(f, PerlIOStdio)->stdio = stdio;
+	PerlIOUnix_refcnt_inc(fileno(stdio));
+    }
+    return f;
+}
+
+IV
+PerlIOStdio_close(PerlIO *f)
+{
+    dSYS;
+#ifdef SOCKS5_VERSION_NAME
+    int optval;
+    Sock_size_t optlen = sizeof(int);
+#endif
+    FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio;
+    if (PerlIOUnix_refcnt_dec(fileno(stdio)) > 0) {
+	/* Do not close it but do flush any buffers */
+	PerlIO_flush(f);
+	return 0;
+    }
+    return (
+#ifdef SOCKS5_VERSION_NAME
+	       (getsockopt
+		(PerlIO_fileno(f), SOL_SOCKET, SO_TYPE, (void *) &optval,
+		 &optlen) <
+		0) ? PerlSIO_fclose(stdio) : close(PerlIO_fileno(f))
+#else
+	       PerlSIO_fclose(stdio)
+#endif
+	);
+
+}
+
+
+
 SSize_t
 PerlIOStdio_read(PerlIO *f, void *vbuf, Size_t count)
 {
@@ -2460,28 +2604,6 @@ PerlIOStdio_tell(PerlIO *f)
 }
 
 IV
-PerlIOStdio_close(PerlIO *f)
-{
-    dSYS;
-#ifdef SOCKS5_VERSION_NAME
-    int optval;
-    Sock_size_t optlen = sizeof(int);
-#endif
-    FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio;
-    return (
-#ifdef SOCKS5_VERSION_NAME
-	       (getsockopt
-		(PerlIO_fileno(f), SOL_SOCKET, SO_TYPE, (void *) &optval,
-		 &optlen) <
-		0) ? PerlSIO_fclose(stdio) : close(PerlIO_fileno(f))
-#else
-	       PerlSIO_fclose(stdio)
-#endif
-	);
-
-}
-
-IV
 PerlIOStdio_flush(PerlIO *f)
 {
     dSYS;
@@ -2636,32 +2758,6 @@ PerlIOStdio_set_ptrcnt(PerlIO *f, STDCHAR * ptr, SSize_t cnt)
 
 #endif
 
-PerlIO *
-PerlIOStdio_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param)
-{
-    /* This assumes no layers underneath - which is what
-       happens, but is not how I remember it. NI-S 2001/10/16
-     */
-    int fd = PerlLIO_dup(PerlIO_fileno(o));
-    if (fd >= 0) {
-	char buf[8];
-	FILE *stdio = PerlSIO_fdopen(fd, PerlIO_modestr(o, buf));
-	if (stdio) {
-	    if ((f = PerlIOBase_dup(aTHX_ f, o, param))) {
-		PerlIOSelf(f, PerlIOStdio)->stdio = stdio;
-	    }
-	    else {
-		PerlSIO_fclose(stdio);
-	    }
-	}
-	else {
-	    PerlLIO_close(fd);
-	    f = NULL;
-	}
-    }
-    return f;
-}
-
 PerlIO_funcs PerlIO_stdio = {
     "stdio",
     sizeof(PerlIOStdio),
@@ -2796,19 +2892,26 @@ PerlIOBuf_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers,
 	f = (*tab->Open) (aTHX_ tab, layers, n - 1, mode, fd, imode, perm,
 			  NULL, narg, args);
 	if (f) {
-	    PerlIO_push(aTHX_ f, self, mode, PerlIOArg);
-	    fd = PerlIO_fileno(f);
-#if O_BINARY != O_TEXT
-	    /*
-	     * do something about failing setmode()? --jhi
-	     */
-	    PerlLIO_setmode(fd, O_BINARY);
-#endif
-	    if (init && fd == 2) {
+            if (PerlIO_push(aTHX_ f, self, mode, PerlIOArg) == 0) {
+		/*
+		 * if push fails during open, open fails. close will pop us.
+		 */
+		PerlIO_close (f);
+		return NULL;
+	    } else {
+		fd = PerlIO_fileno(f);
+#if (O_BINARY != O_TEXT) && !defined(__BEOS__)
 		/*
-		 * Initial stderr is unbuffered
+		 * do something about failing setmode()? --jhi
 		 */
-		PerlIOBase(f)->flags |= PERLIO_F_UNBUF;
+		PerlLIO_setmode(fd, O_BINARY);
+#endif
+		if (init && fd == 2) {
+		    /*
+		     * Initial stderr is unbuffered
+		     */
+		    PerlIOBase(f)->flags |= PERLIO_F_UNBUF;
+		}
 	    }
 	}
     }
@@ -3155,9 +3258,9 @@ PerlIOBuf_set_ptrcnt(PerlIO *f, STDCHAR * ptr, SSize_t cnt)
 }
 
 PerlIO *
-PerlIOBuf_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param)
+PerlIOBuf_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, int flags)
 {
- return PerlIOBase_dup(aTHX_ f, o, param);
+ return PerlIOBase_dup(aTHX_ f, o, param, flags);
 }
 
 
@@ -3435,7 +3538,7 @@ PerlIOCrlf_get_cnt(PerlIO *f)
 			int code;
 			b->ptr++;	/* say we have read it as far as
 					 * flush() is concerned */
-			b->buf++;	/* Leave space an front of buffer */
+			b->buf++;	/* Leave space in front of buffer */
 			b->bufsiz--;	/* Buffer is thus smaller */
 			code = PerlIO_fill(f);	/* Fetch some more */
 			b->bufsiz++;	/* Restore size for next time */
@@ -3883,9 +3986,9 @@ PerlIOMmap_close(PerlIO *f)
 }
 
 PerlIO *
-PerlIOMmap_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param)
+PerlIOMmap_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param, int flags)
 {
- return PerlIOBase_dup(aTHX_ f, o, param);
+ return PerlIOBase_dup(aTHX_ f, o, param, flags);
 }
 
 
@@ -3920,12 +4023,6 @@ PerlIO_funcs PerlIO_mmap = {
 
 #endif				/* HAS_MMAP */
 
-void
-PerlIO_init(pTHX)
-{
- /* Place holder for stdstreams call ??? */
-}
-
 #undef PerlIO_stdin
 PerlIO *
 PerlIO_stdin(void)
@@ -4241,3 +4338,7 @@ PerlIO_sprintf(char *s, int n, const char *fmt, ...)
 }
 #endif
 
+
+
+
+