/* perlio.c
*
- * Copyright (c) 1996-2000, Nick Ing-Simmons
+ * Copyright (c) 1996-2001, Nick Ing-Simmons
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
#endif
/*
* This file provides those parts of PerlIO abstraction
- * which are not #defined in iperlsys.h.
+ * which are not #defined in perlio.h.
* Which these are depends on various Configure #ifdef's
*/
#define PERL_IN_PERLIO_C
#include "perl.h"
+#undef PerlMemShared_calloc
+#define PerlMemShared_calloc(x,y) calloc(x,y)
+#undef PerlMemShared_free
+#define PerlMemShared_free(x) free(x)
+
+int
+perlsio_binmode(FILE *fp, int iotype, int mode)
+{
+/* This used to be contents of do_binmode in doio.c */
+#ifdef DOSISH
+# if defined(atarist) || defined(__MINT__)
+ if (!fflush(fp)) {
+ if (mode & O_BINARY)
+ ((FILE*)fp)->_flag |= _IOBIN;
+ else
+ ((FILE*)fp)->_flag &= ~ _IOBIN;
+ return 1;
+ }
+ return 0;
+# else
+ dTHX;
+ if (PerlLIO_setmode(fileno(fp), mode) != -1) {
+# if defined(WIN32) && defined(__BORLANDC__)
+ /* The translation mode of the stream is maintained independent
+ * of the translation mode of the fd in the Borland RTL (heavy
+ * digging through their runtime sources reveal). User has to
+ * set the mode explicitly for the stream (though they don't
+ * document this anywhere). GSAR 97-5-24
+ */
+ fseek(fp,0L,0);
+ if (mode & O_BINARY)
+ fp->flags |= _F_BIN;
+ else
+ fp->flags &= ~ _F_BIN;
+# endif
+ return 1;
+ }
+ else
+ return 0;
+# endif
+#else
+# if defined(USEMYBINMODE)
+ if (my_binmode(fp, iotype, mode) != FALSE)
+ return 1;
+ else
+ return 0;
+# else
+ return 1;
+# endif
+#endif
+}
+
#ifndef PERLIO_LAYERS
int
PerlIO_apply_layers(pTHX_ PerlIO *f, const char *mode, const char *names)
if (!names || !*names || strEQ(names,":crlf") || strEQ(names,":raw"))
{
return 0;
- }
+ }
Perl_croak(aTHX_ "Cannot apply \"%s\" in non-PerlIO perl",names);
/* NOTREACHED */
- return -1;
+ return -1;
+}
+
+void
+PerlIO_destruct(pTHX)
+{
+}
+
+int
+PerlIO_binmode(pTHX_ PerlIO *fp, int iotype, int mode, const char *names)
+{
+ return perlsio_binmode(fp,iotype,mode);
+}
+
+/* De-mux PerlIO_openn() into fdopen, freopen and fopen type entries */
+
+PerlIO *
+PerlIO_openn(pTHX_ const char *layers, const char *mode, int fd, int imode, int perm, PerlIO *old, int narg, SV **args)
+{
+ if (narg == 1)
+ {
+ if (*args == &PL_sv_undef)
+ return PerlIO_tmpfile();
+ else
+ {
+ char *name = SvPV_nolen(*args);
+ if (*mode == '#')
+ {
+ fd = PerlLIO_open3(name,imode,perm);
+ if (fd >= 0)
+ return PerlIO_fdopen(fd,(char *)mode+1);
+ }
+ else if (old)
+ {
+ return PerlIO_reopen(name,mode,old);
+ }
+ else
+ {
+ return PerlIO_open(name,mode);
+ }
+ }
+ }
+ else
+ {
+ return PerlIO_fdopen(fd,(char *)mode);
+ }
+ return NULL;
}
+
#endif
-#if !defined(PERL_IMPLICIT_SYS)
#ifdef PERLIO_IS_STDIO
#include "XSUB.h"
-void PerlIO_debug(char *fmt,...) __attribute__((format(__printf__,1,2)));
+void PerlIO_debug(const char *fmt,...) __attribute__((format(__printf__,1,2)));
void
-PerlIO_debug(char *fmt,...)
+PerlIO_debug(const char *fmt,...)
{
+ dTHX;
static int dbg = 0;
+ va_list ap;
+ va_start(ap,fmt);
if (!dbg)
{
char *s = PerlEnv_getenv("PERLIO_DEBUG");
if (dbg > 0)
{
dTHX;
- va_list ap;
SV *sv = newSVpvn("",0);
char *s;
STRLEN len;
- va_start(ap,fmt);
s = CopFILE(PL_curcop);
if (!s)
s = "(none)";
s = SvPV(sv,len);
PerlLIO_write(dbg,s,len);
- va_end(ap);
SvREFCNT_dec(sv);
}
+ va_end(ap);
}
/*--------------------------------------------------------------------------------------*/
PerlIO *_perlio = NULL;
#define PERLIO_TABLE_SIZE 64
+
+
PerlIO *
-PerlIO_allocate(void)
+PerlIO_allocate(pTHX)
{
/* Find a free slot in the table, allocating new table as necessary */
- PerlIO **last = &_perlio;
+ PerlIO **last;
PerlIO *f;
+ last = &_perlio;
while ((f = *last))
{
int i;
}
}
}
- Newz('I',f,PERLIO_TABLE_SIZE,PerlIO);
+ f = PerlMemShared_calloc(PERLIO_TABLE_SIZE,sizeof(PerlIO));
if (!f)
- return NULL;
+ {
+ return NULL;
+ }
*last = f;
return f+1;
}
void
-PerlIO_cleantable(PerlIO **tablep)
+PerlIO_cleantable(pTHX_ PerlIO **tablep)
{
PerlIO *table = *tablep;
if (table)
{
int i;
- PerlIO_cleantable((PerlIO **) &(table[0]));
+ PerlIO_cleantable(aTHX_ (PerlIO **) &(table[0]));
for (i=PERLIO_TABLE_SIZE-1; i > 0; i--)
{
PerlIO *f = table+i;
if (*f)
- PerlIO_close(f);
+ {
+ PerlIO_close(f);
+ }
}
- Safefree(table);
+ PerlMemShared_free(table);
*tablep = NULL;
}
}
AV *PerlIO_layer_av;
void
-PerlIO_cleanup(void)
+PerlIO_cleanup()
{
- PerlIO_cleantable(&_perlio);
+ dTHX;
+ PerlIO_cleantable(aTHX_ &_perlio);
+}
+
+void
+PerlIO_destruct(pTHX)
+{
+ PerlIO **table = &_perlio;
+ PerlIO *f;
+ while ((f = *table))
+ {
+ int i;
+ table = (PerlIO **)(f++);
+ for (i=1; i < PERLIO_TABLE_SIZE; i++)
+ {
+ PerlIO *x = f;
+ PerlIOl *l;
+ while ((l = *x))
+ {
+ if (l->tab->kind & PERLIO_K_DESTRUCT)
+ {
+ PerlIO_debug("Destruct popping %s\n",l->tab->name);
+ PerlIO_flush(x);
+ PerlIO_pop(aTHX_ x);
+ }
+ else
+ {
+ x = PerlIONext(x);
+ }
+ }
+ f++;
+ }
+ }
}
void
-PerlIO_pop(PerlIO *f)
+PerlIO_pop(pTHX_ PerlIO *f)
{
PerlIOl *l = *f;
if (l)
{
- (*l->tab->Popped)(f);
+ PerlIO_debug("PerlIO_pop f=%p %s\n",f,l->tab->name);
+ if (l->tab->Popped)
+ (*l->tab->Popped)(f);
*f = l->next;
- Safefree(l);
+ PerlMemShared_free(l);
}
}
/*--------------------------------------------------------------------------------------*/
/* XS Interface for perl code */
-XS(XS_perlio_import)
-{
- dXSARGS;
- GV *gv = CvGV(cv);
- char *s = GvNAME(gv);
- STRLEN l = GvNAMELEN(gv);
- PerlIO_debug("%.*s\n",(int) l,s);
- XSRETURN_EMPTY;
-}
-
-XS(XS_perlio_unimport)
-{
- dXSARGS;
- GV *gv = CvGV(cv);
- char *s = GvNAME(gv);
- STRLEN l = GvNAMELEN(gv);
- PerlIO_debug("%.*s\n",(int) l,s);
- XSRETURN_EMPTY;
-}
-
SV *
-PerlIO_find_layer(const char *name, STRLEN len)
+PerlIO_find_layer(pTHX_ const char *name, STRLEN len, int load)
{
- dTHX;
SV **svp;
SV *sv;
- if (len <= 0)
+ if ((SSize_t) len <= 0)
len = strlen(name);
svp = hv_fetch(PerlIO_layer_hv,name,len,0);
- if (svp && (sv = *svp) && SvROK(sv))
- return *svp;
- return NULL;
+ if (!svp && load && PL_subname && PerlIO_layer_av && av_len(PerlIO_layer_av)+1 >= 2)
+ {
+ SV *pkgsv = newSVpvn("PerlIO",6);
+ SV *layer = newSVpvn(name,len);
+ ENTER;
+ /* The two SVs are magically freed by load_module */
+ Perl_load_module(aTHX_ 0, pkgsv, Nullsv, layer, Nullsv);
+ LEAVE;
+ /* Say this is lvalue so we get an 'undef' if still not there */
+ svp = hv_fetch(PerlIO_layer_hv,name,len,1);
+ }
+ if (svp && (sv = *svp))
+ {
+ if (SvROK(sv))
+ return *svp;
+ }
+ return Nullsv;
}
PerlIO *ifp = IoIFP(io);
PerlIO *ofp = IoOFP(io);
AV *av = (AV *) mg->mg_obj;
- Perl_warn(aTHX_ "set %_ %p %p %p",sv,io,ifp,ofp);
+ Perl_warn(aTHX_ "set %"SVf" %p %p %p",sv,io,ifp,ofp);
}
return 0;
}
PerlIO *ifp = IoIFP(io);
PerlIO *ofp = IoOFP(io);
AV *av = (AV *) mg->mg_obj;
- Perl_warn(aTHX_ "get %_ %p %p %p",sv,io,ifp,ofp);
+ Perl_warn(aTHX_ "get %"SVf" %p %p %p",sv,io,ifp,ofp);
}
return 0;
}
static int
perlio_mg_clear(pTHX_ SV *sv, MAGIC *mg)
{
- Perl_warn(aTHX_ "clear %_",sv);
+ Perl_warn(aTHX_ "clear %"SVf,sv);
return 0;
}
static int
perlio_mg_free(pTHX_ SV *sv, MAGIC *mg)
{
- Perl_warn(aTHX_ "free %_",sv);
+ Perl_warn(aTHX_ "free %"SVf,sv);
return 0;
}
MAGIC *mg;
int count = 0;
int i;
- sv_magic(sv, (SV *)av, '~', NULL, 0);
+ sv_magic(sv, (SV *)av, PERL_MAGIC_ext, NULL, 0);
SvRMAGICAL_off(sv);
- mg = mg_find(sv,'~');
+ mg = mg_find(sv, PERL_MAGIC_ext);
mg->mg_virtual = &perlio_vtab;
mg_magical(sv);
- Perl_warn(aTHX_ "attrib %_",sv);
+ Perl_warn(aTHX_ "attrib %"SVf,sv);
for (i=2; i < items; i++)
{
STRLEN len;
const char *name = SvPV(ST(i),len);
- SV *layer = PerlIO_find_layer(name,len);
+ SV *layer = PerlIO_find_layer(aTHX_ name,len,1);
if (layer)
{
av_push(av,SvREFCNT_inc(layer));
XSRETURN(count);
}
-void
-PerlIO_define_layer(PerlIO_funcs *tab)
+SV *
+PerlIO_tab_sv(pTHX_ PerlIO_funcs *tab)
{
- dTHX;
- HV *stash = gv_stashpv("perlio::Layer", TRUE);
+ HV *stash = gv_stashpv("PerlIO::Layer", TRUE);
SV *sv = sv_bless(newRV_noinc(newSViv(PTR2IV(tab))),stash);
- hv_store(PerlIO_layer_hv,tab->name,strlen(tab->name),sv,0);
+ return sv;
}
-PerlIO_funcs *
-PerlIO_default_layer(I32 n)
+void
+PerlIO_define_layer(pTHX_ PerlIO_funcs *tab)
{
- dTHX;
- SV **svp;
- SV *layer;
- PerlIO_funcs *tab = &PerlIO_stdio;
- int len;
if (!PerlIO_layer_hv)
{
- const char *s = PerlEnv_getenv("PERLIO");
- newXS("perlio::import",XS_perlio_import,__FILE__);
- newXS("perlio::unimport",XS_perlio_unimport,__FILE__);
-#if 0
- newXS("io::MODIFY_SCALAR_ATTRIBUTES",XS_io_MODIFY_SCALAR_ATTRIBUTES,__FILE__);
-#endif
PerlIO_layer_hv = get_hv("open::layers",GV_ADD|GV_ADDMULTI);
- PerlIO_layer_av = get_av("open::layers",GV_ADD|GV_ADDMULTI);
- PerlIO_define_layer(&PerlIO_unix);
- PerlIO_define_layer(&PerlIO_perlio);
- PerlIO_define_layer(&PerlIO_stdio);
- PerlIO_define_layer(&PerlIO_crlf);
-#ifdef HAS_MMAP
- PerlIO_define_layer(&PerlIO_mmap);
-#endif
- av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_unix.name,0)));
- if (s)
- {
- while (*s)
- {
- while (*s && isSPACE((unsigned char)*s))
- s++;
- if (*s)
- {
- const char *e = s;
- SV *layer;
- while (*e && !isSPACE((unsigned char)*e))
- e++;
- if (*s == ':')
- s++;
- layer = PerlIO_find_layer(s,e-s);
- if (layer)
- {
- PerlIO_debug("Pushing %.*s\n",(e-s),s);
- av_push(PerlIO_layer_av,SvREFCNT_inc(layer));
- }
- else
- Perl_warn(aTHX_ "perlio: unknown layer \"%.*s\"",(e-s),s);
- s = e;
- }
- }
- }
- }
- len = av_len(PerlIO_layer_av);
- if (len < 1)
- {
- if (PerlIO_stdio.Set_ptrcnt)
- {
- av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_stdio.name,0)));
- }
- else
- {
- av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_perlio.name,0)));
- }
- len = av_len(PerlIO_layer_av);
- }
- if (n < 0)
- n += len+1;
- svp = av_fetch(PerlIO_layer_av,n,0);
- if (svp && (layer = *svp) && SvROK(layer) && SvIOK((layer = SvRV(layer))))
- {
- tab = INT2PTR(PerlIO_funcs *, SvIV(layer));
}
- /* PerlIO_debug("Layer %d is %s\n",n,tab->name); */
- return tab;
+ hv_store(PerlIO_layer_hv,tab->name,strlen(tab->name),PerlIO_tab_sv(aTHX_ tab),0);
+ PerlIO_debug("define %s %p\n",tab->name,tab);
}
int
-PerlIO_apply_layers(pTHX_ PerlIO *f, const char *mode, const char *names)
+PerlIO_parse_layers(pTHX_ AV *av, const char *names)
{
if (names)
{
const char *s = names;
while (*s)
{
- while (isSPACE(*s))
- s++;
- if (*s == ':')
+ while (isSPACE(*s) || *s == ':')
s++;
if (*s)
{
+ STRLEN llen = 0;
const char *e = s;
- while (*e && *e != ':' && !isSPACE(*e))
- e++;
- if (e > s)
+ const char *as = Nullch;
+ STRLEN alen = 0;
+ if (!isIDFIRST(*s))
{
- SV *layer = PerlIO_find_layer(s,e-s);
- if (layer)
+ /* Message is consistent with how attribute lists are passed.
+ Even though this means "foo : : bar" is seen as an invalid separator
+ character. */
+ char q = ((*s == '\'') ? '"' : '\'');
+ Perl_warn(aTHX_ "perlio: invalid separator character %c%c%c in layer specification list", q, *s, q);
+ return -1;
+ }
+ do
+ {
+ e++;
+ } while (isALNUM(*e));
+ llen = e-s;
+ if (*e == '(')
+ {
+ int nesting = 1;
+ as = ++e;
+ while (nesting)
{
- PerlIO_funcs *tab = INT2PTR(PerlIO_funcs *, SvIV(SvRV(layer)));
- if (tab)
+ switch (*e++)
{
- PerlIO *new = PerlIO_push(f,tab,mode);
- if (!new)
+ case ')':
+ if (--nesting == 0)
+ alen = (e-1)-as;
+ break;
+ case '(':
+ ++nesting;
+ break;
+ case '\\':
+ /* It's a nul terminated string, not allowed to \ the terminating null.
+ Anything other character is passed over. */
+ if (*e++)
+ {
+ break;
+ }
+ /* Drop through */
+ case '\0':
+ e--;
+ Perl_warn(aTHX_ "perlio: argument list not closed for layer \"%.*s\"",(int)(e - s),s);
return -1;
+ default:
+ /* boring. */
+ break;
}
}
- else
- Perl_warn(aTHX_ "perlio: unknown layer \"%.*s\"",(e-s),s);
+ }
+ if (e > s)
+ {
+ SV *layer = PerlIO_find_layer(aTHX_ s,llen,1);
+ if (layer)
+ {
+ av_push(av,SvREFCNT_inc(layer));
+ av_push(av,(as) ? newSVpvn(as,alen) : &PL_sv_undef);
+ }
+ else {
+ Perl_warn(aTHX_ "perlio: unknown layer \"%.*s\"",(int)llen,s);
+ return -1;
+ }
}
s = e;
}
return 0;
}
-#define PerlIO_default_top() PerlIO_default_layer(-1)
-#define PerlIO_default_btm() PerlIO_default_layer(0)
-
void
-PerlIO_stdstreams()
+PerlIO_default_buffer(pTHX_ AV *av)
{
- if (!_perlio)
+ PerlIO_funcs *tab = &PerlIO_perlio;
+ if (O_BINARY != O_TEXT)
{
- PerlIO_allocate();
- PerlIO_fdopen(0,"Ir");
- PerlIO_fdopen(1,"Iw");
- PerlIO_fdopen(2,"Iw");
+ tab = &PerlIO_crlf;
}
-}
-
-PerlIO *
-PerlIO_push(PerlIO *f,PerlIO_funcs *tab,const char *mode)
-{
- PerlIOl *l = NULL;
- Newc('L',l,tab->size,char,PerlIOl);
- if (l)
+ else
{
- Zero(l,tab->size,char);
- l->next = *f;
- l->tab = tab;
- *f = l;
- if ((*l->tab->Pushed)(f,mode) != 0)
+ if (PerlIO_stdio.Set_ptrcnt)
{
- PerlIO_pop(f);
- return NULL;
+ tab = &PerlIO_stdio;
}
}
- return f;
+ PerlIO_debug("Pushing %s\n",tab->name);
+ av_push(av,SvREFCNT_inc(PerlIO_find_layer(aTHX_ tab->name,0,0)));
+ av_push(av,&PL_sv_undef);
}
-/*--------------------------------------------------------------------------------------*/
-/* Given the abstraction above the public API functions */
+SV *
+PerlIO_arg_fetch(pTHX_ AV *av,IV n)
+{
+ SV **svp = av_fetch(av,n,FALSE);
+ return (svp) ? *svp : Nullsv;
+}
-#undef PerlIO_close
-int
-PerlIO_close(PerlIO *f)
+PerlIO_funcs *
+PerlIO_layer_fetch(pTHX_ AV *av,IV n,PerlIO_funcs *def)
{
- int code = (*PerlIOBase(f)->tab->Close)(f);
- while (*f)
+ SV **svp = av_fetch(av,n,FALSE);
+ SV *layer;
+ if (svp && (layer = *svp) && SvROK(layer) && SvIOK((layer = SvRV(layer))))
{
- PerlIO_pop(f);
+ /* PerlIO_debug("Layer %d is %s\n",n/2,tab->name); */
+ return INT2PTR(PerlIO_funcs *, SvIV(layer));
}
- return code;
+ if (!def)
+ Perl_croak(aTHX_ "panic:PerlIO layer array corrupt");
+ return def;
}
-#undef PerlIO_fileno
-int
-PerlIO_fileno(PerlIO *f)
+AV *
+PerlIO_default_layers(pTHX)
{
- return (*PerlIOBase(f)->tab->Fileno)(f);
+ IV len;
+ if (!PerlIO_layer_av)
+ {
+ const char *s = (PL_tainting) ? Nullch : PerlEnv_getenv("PERLIO");
+ PerlIO_layer_av = get_av("open::layers",GV_ADD|GV_ADDMULTI);
+#if 0
+ newXS("io::MODIFY_SCALAR_ATTRIBUTES",XS_io_MODIFY_SCALAR_ATTRIBUTES,__FILE__);
+#endif
+ PerlIO_define_layer(aTHX_ &PerlIO_raw);
+ PerlIO_define_layer(aTHX_ &PerlIO_unix);
+ PerlIO_define_layer(aTHX_ &PerlIO_perlio);
+ PerlIO_define_layer(aTHX_ &PerlIO_stdio);
+ PerlIO_define_layer(aTHX_ &PerlIO_crlf);
+#ifdef HAS_MMAP
+ PerlIO_define_layer(aTHX_ &PerlIO_mmap);
+#endif
+ PerlIO_define_layer(aTHX_ &PerlIO_utf8);
+ PerlIO_define_layer(aTHX_ &PerlIO_byte);
+ av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(aTHX_ PerlIO_unix.name,0,0)));
+ av_push(PerlIO_layer_av,&PL_sv_undef);
+ if (s)
+ {
+ PerlIO_parse_layers(aTHX_ PerlIO_layer_av,s);
+ }
+ else
+ {
+ PerlIO_default_buffer(aTHX_ PerlIO_layer_av);
+ }
+ }
+ len = av_len(PerlIO_layer_av)+1;
+ if (len < 2)
+ {
+ PerlIO_default_buffer(aTHX_ PerlIO_layer_av);
+ len = av_len(PerlIO_layer_av);
+ }
+ return PerlIO_layer_av;
}
-
-#undef PerlIO_fdopen
-PerlIO *
-PerlIO_fdopen(int fd, const char *mode)
+PerlIO_funcs *
+PerlIO_default_layer(pTHX_ I32 n)
{
- PerlIO_funcs *tab = PerlIO_default_top();
- if (!_perlio)
- PerlIO_stdstreams();
- return (*tab->Fdopen)(tab,fd,mode);
+ AV *av = PerlIO_default_layers(aTHX);
+ n *= 2;
+ if (n < 0)
+ n += av_len(PerlIO_layer_av)+1;
+ return PerlIO_layer_fetch(aTHX_ av,n, &PerlIO_stdio);
}
-#undef PerlIO_open
-PerlIO *
-PerlIO_open(const char *path, const char *mode)
+#define PerlIO_default_top() PerlIO_default_layer(aTHX_ -1)
+#define PerlIO_default_btm() PerlIO_default_layer(aTHX_ 0)
+
+void
+PerlIO_stdstreams(pTHX)
{
- PerlIO_funcs *tab = PerlIO_default_top();
if (!_perlio)
- PerlIO_stdstreams();
- return (*tab->Open)(tab,path,mode);
+ {
+ PerlIO_allocate(aTHX);
+ PerlIO_fdopen(0,"Ir" PERLIO_STDTEXT);
+ PerlIO_fdopen(1,"Iw" PERLIO_STDTEXT);
+ PerlIO_fdopen(2,"Iw" PERLIO_STDTEXT);
+ }
}
-#undef PerlIO_reopen
PerlIO *
-PerlIO_reopen(const char *path, const char *mode, PerlIO *f)
+PerlIO_push(pTHX_ PerlIO *f,PerlIO_funcs *tab,const char *mode,SV *arg)
{
- if (f)
+ PerlIOl *l = NULL;
+ l = PerlMemShared_calloc(tab->size,sizeof(char));
+ if (l)
{
- PerlIO_flush(f);
- if ((*PerlIOBase(f)->tab->Reopen)(path,mode,f) == 0)
+ Zero(l,tab->size,char);
+ l->next = *f;
+ l->tab = tab;
+ *f = l;
+ PerlIO_debug("PerlIO_push f=%p %s %s %p\n",f,tab->name,
+ (mode) ? mode : "(Null)",arg);
+ if ((*l->tab->Pushed)(f,mode,arg) != 0)
{
- if ((*PerlIOBase(f)->tab->Pushed)(f,mode) == 0)
- return f;
+ PerlIO_pop(aTHX_ f);
+ return NULL;
}
- return NULL;
}
- else
- return PerlIO_open(path,mode);
-}
-
-#undef PerlIO_read
-SSize_t
-PerlIO_read(PerlIO *f, void *vbuf, Size_t count)
-{
- return (*PerlIOBase(f)->tab->Read)(f,vbuf,count);
+ return f;
}
-#undef PerlIO_unread
-SSize_t
-PerlIO_unread(PerlIO *f, const void *vbuf, Size_t count)
+IV
+PerlIOPop_pushed(PerlIO *f, const char *mode, SV *arg)
{
- return (*PerlIOBase(f)->tab->Unread)(f,vbuf,count);
+ dTHX;
+ PerlIO_pop(aTHX_ f);
+ if (*f)
+ {
+ PerlIO_flush(f);
+ PerlIO_pop(aTHX_ f);
+ return 0;
+ }
+ return -1;
}
-#undef PerlIO_write
-SSize_t
-PerlIO_write(PerlIO *f, const void *vbuf, Size_t count)
+IV
+PerlIORaw_pushed(PerlIO *f, const char *mode, SV *arg)
{
- return (*PerlIOBase(f)->tab->Write)(f,vbuf,count);
+ /* Remove the dummy layer */
+ dTHX;
+ PerlIO_pop(aTHX_ f);
+ /* Pop back to bottom layer */
+ if (f && *f)
+ {
+ int code = 0;
+ PerlIO_flush(f);
+ while (!(PerlIOBase(f)->tab->kind & PERLIO_K_RAW))
+ {
+ if (*PerlIONext(f))
+ {
+ PerlIO_pop(aTHX_ f);
+ }
+ else
+ {
+ /* Nothing bellow - push unix on top then remove it */
+ if (PerlIO_push(aTHX_ f,PerlIO_default_btm(),mode,arg))
+ {
+ PerlIO_pop(aTHX_ PerlIONext(f));
+ }
+ break;
+ }
+ }
+ PerlIO_debug(":raw f=%p :%s\n",f,PerlIOBase(f)->tab->name);
+ return 0;
+ }
+ return -1;
}
-#undef PerlIO_seek
+int
+PerlIO_apply_layera(pTHX_ PerlIO *f, const char *mode, AV *layers, IV n)
+{
+ IV max = av_len(layers)+1;
+ int code = 0;
+ while (n < max)
+ {
+ PerlIO_funcs *tab = PerlIO_layer_fetch(aTHX_ layers,n,NULL);
+ if (tab)
+ {
+ if (!PerlIO_push(aTHX_ f,tab,mode,PerlIOArg))
+ {
+ code = -1;
+ break;
+ }
+ }
+ n += 2;
+ }
+ return code;
+}
+
+int
+PerlIO_apply_layers(pTHX_ PerlIO *f, const char *mode, const char *names)
+{
+ int code = 0;
+ if (names)
+ {
+ AV *layers = newAV();
+ code = PerlIO_parse_layers(aTHX_ layers,names);
+ if (code == 0)
+ {
+ code = PerlIO_apply_layera(aTHX_ f, mode, layers, 0);
+ }
+ SvREFCNT_dec((SV *) layers);
+ }
+ return code;
+}
+
+
+/*--------------------------------------------------------------------------------------*/
+/* Given the abstraction above the public API functions */
+
+int
+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)");
+ if (!names && (O_TEXT != O_BINARY && (mode & O_BINARY)))
+ {
+ PerlIO *top = f;
+ PerlIOl *l;
+ while (l = *top)
+ {
+ if (PerlIOBase(top)->tab == &PerlIO_crlf)
+ {
+ PerlIO_flush(top);
+ PerlIOBase(top)->flags &= ~PERLIO_F_CRLF;
+ break;
+ }
+ top = PerlIONext(top);
+ }
+ }
+ return PerlIO_apply_layers(aTHX_ f, NULL, names) == 0 ? TRUE : FALSE;
+}
+
+#undef PerlIO__close
+int
+PerlIO__close(PerlIO *f)
+{
+ if (f && *f)
+ return (*PerlIOBase(f)->tab->Close)(f);
+ else
+ {
+ SETERRNO(EBADF,SS$_IVCHAN);
+ return -1;
+ }
+}
+
+#undef PerlIO_fdupopen
+PerlIO *
+PerlIO_fdupopen(pTHX_ PerlIO *f)
+{
+ if (f && *f)
+ {
+ char buf[8];
+ int fd = PerlLIO_dup(PerlIO_fileno(f));
+ PerlIO *new = PerlIO_fdopen(fd,PerlIO_modestr(f,buf));
+ if (new)
+ {
+ Off_t posn = PerlIO_tell(f);
+ PerlIO_seek(new,posn,SEEK_SET);
+ }
+ return new;
+ }
+ else
+ {
+ SETERRNO(EBADF,SS$_IVCHAN);
+ return NULL;
+ }
+}
+
+#undef PerlIO_close
+int
+PerlIO_close(PerlIO *f)
+{
+ dTHX;
+ int code = -1;
+ if (f && *f)
+ {
+ code = (*PerlIOBase(f)->tab->Close)(f);
+ while (*f)
+ {
+ PerlIO_pop(aTHX_ f);
+ }
+ }
+ return code;
+}
+
+#undef PerlIO_fileno
+int
+PerlIO_fileno(PerlIO *f)
+{
+ if (f && *f)
+ return (*PerlIOBase(f)->tab->Fileno)(f);
+ else
+ {
+ SETERRNO(EBADF,SS$_IVCHAN);
+ return -1;
+ }
+}
+
+static const char *
+PerlIO_context_layers(pTHX_ const char *mode)
+{
+ const char *type = NULL;
+ /* Need to supply default layer info from open.pm */
+ if (PL_curcop)
+ {
+ SV *layers = PL_curcop->cop_io;
+ if (layers)
+ {
+ STRLEN len;
+ type = SvPV(layers,len);
+ if (type && mode[0] != 'r')
+ {
+ /* Skip to write part */
+ const char *s = strchr(type,0);
+ if (s && (s-type) < len)
+ {
+ type = s+1;
+ }
+ }
+ }
+ }
+ return type;
+}
+
+static SV *
+PerlIO_layer_from_ref(pTHX_ SV *sv)
+{
+ /* For any scalar type load the handler which is bundled with perl */
+ if (SvTYPE(sv) < SVt_PVAV)
+ return PerlIO_find_layer(aTHX_ "Scalar",6, 1);
+
+ /* For other types allow if layer is known but don't try and load it */
+ switch (SvTYPE(sv))
+ {
+ case SVt_PVAV:
+ return PerlIO_find_layer(aTHX_ "Array",5, 0);
+ case SVt_PVHV:
+ return PerlIO_find_layer(aTHX_ "Hash",4, 0);
+ case SVt_PVCV:
+ return PerlIO_find_layer(aTHX_ "Code",4, 0);
+ case SVt_PVGV:
+ return PerlIO_find_layer(aTHX_ "Glob",4, 0);
+ }
+ return Nullsv;
+}
+
+AV *
+PerlIO_resolve_layers(pTHX_ const char *layers,const char *mode,int narg, SV **args)
+{
+ AV *def = PerlIO_default_layers(aTHX);
+ int incdef = 1;
+ if (!_perlio)
+ PerlIO_stdstreams(aTHX);
+ if (narg)
+ {
+ SV *arg = *args;
+ /* If it is a reference but not an object see if we have a handler for it */
+ if (SvROK(arg) && !sv_isobject(arg))
+ {
+ SV *handler = PerlIO_layer_from_ref(aTHX_ SvRV(arg));
+ if (handler)
+ {
+ def = newAV();
+ av_push(def,SvREFCNT_inc(handler));
+ av_push(def,&PL_sv_undef);
+ incdef = 0;
+ }
+ /* Don't fail if handler cannot be found
+ * :Via(...) etc. may do something sensible
+ * else we will just stringfy and open resulting string.
+ */
+ }
+ }
+ if (!layers)
+ layers = PerlIO_context_layers(aTHX_ mode);
+ if (layers && *layers)
+ {
+ AV *av;
+ if (incdef)
+ {
+ IV n = av_len(def)+1;
+ av = newAV();
+ while (n-- > 0)
+ {
+ SV **svp = av_fetch(def,n,0);
+ av_store(av,n,(svp) ? SvREFCNT_inc(*svp) : &PL_sv_undef);
+ }
+ }
+ else
+ {
+ av = def;
+ }
+ PerlIO_parse_layers(aTHX_ av,layers);
+ return av;
+ }
+ else
+ {
+ if (incdef)
+ SvREFCNT_inc(def);
+ return def;
+ }
+}
+
+PerlIO *
+PerlIO_openn(pTHX_ const char *layers, const char *mode, int fd, int imode, int perm, PerlIO *f, int narg, SV **args)
+{
+ if (!f && narg == 1 && *args == &PL_sv_undef)
+ {
+ if ((f = PerlIO_tmpfile()))
+ {
+ if (!layers)
+ layers = PerlIO_context_layers(aTHX_ mode);
+ if (layers && *layers)
+ PerlIO_apply_layers(aTHX_ f,mode,layers);
+ }
+ }
+ else
+ {
+ AV *layera;
+ IV n;
+ PerlIO_funcs *tab;
+ if (f && *f)
+ {
+ /* This is "reopen" - it is not tested as perl does not use it yet */
+ PerlIOl *l = *f;
+ layera = newAV();
+ while (l)
+ {
+ SV *arg = (l->tab->Getarg) ? (*l->tab->Getarg)(&l) : &PL_sv_undef;
+ av_unshift(layera,2);
+ av_store(layera,0,PerlIO_tab_sv(aTHX_ l->tab));
+ av_store(layera,1,arg);
+ l = *PerlIONext(&l);
+ }
+ }
+ else
+ {
+ layera = PerlIO_resolve_layers(aTHX_ layers, mode, narg, args);
+ }
+ n = av_len(layera)-1;
+ while (n >= 0)
+ {
+ PerlIO_funcs *t = PerlIO_layer_fetch(aTHX_ layera,n,NULL);
+ if (t && t->Open)
+ {
+ tab = t;
+ break;
+ }
+ n -= 2;
+ }
+ if (tab)
+ {
+ PerlIO_debug("openn(%s,'%s','%s',%d,%x,%o,%p,%d,%p)\n",
+ tab->name,layers,mode,fd,imode,perm,f,narg,args);
+ f = (*tab->Open)(aTHX_ tab, layera, n, mode,fd,imode,perm,f,narg,args);
+ if (f)
+ {
+ if (n+2 < av_len(layera)+1)
+ {
+ if (PerlIO_apply_layera(aTHX_ f, mode, layera, n+2) != 0)
+ {
+ f = NULL;
+ }
+ }
+ }
+ }
+ SvREFCNT_dec(layera);
+ }
+ return f;
+}
+
+
+#undef PerlIO_fdopen
+PerlIO *
+PerlIO_fdopen(int fd, const char *mode)
+{
+ dTHX;
+ return PerlIO_openn(aTHX_ Nullch,mode,fd,0,0,NULL,0,NULL);
+}
+
+#undef PerlIO_open
+PerlIO *
+PerlIO_open(const char *path, const char *mode)
+{
+ dTHX;
+ SV *name = sv_2mortal(newSVpvn(path,strlen(path)));
+ return PerlIO_openn(aTHX_ Nullch,mode,-1,0,0,NULL,1,&name);
+}
+
+#undef PerlIO_reopen
+PerlIO *
+PerlIO_reopen(const char *path, const char *mode, PerlIO *f)
+{
+ dTHX;
+ SV *name = sv_2mortal(newSVpvn(path,strlen(path)));
+ return PerlIO_openn(aTHX_ Nullch,mode,-1,0,0,f,1,&name);
+}
+
+#undef PerlIO_read
+SSize_t
+PerlIO_read(PerlIO *f, void *vbuf, Size_t count)
+{
+ if (f && *f)
+ return (*PerlIOBase(f)->tab->Read)(f,vbuf,count);
+ else
+ {
+ SETERRNO(EBADF,SS$_IVCHAN);
+ return -1;
+ }
+}
+
+#undef PerlIO_unread
+SSize_t
+PerlIO_unread(PerlIO *f, const void *vbuf, Size_t count)
+{
+ if (f && *f)
+ return (*PerlIOBase(f)->tab->Unread)(f,vbuf,count);
+ else
+ {
+ SETERRNO(EBADF,SS$_IVCHAN);
+ return -1;
+ }
+}
+
+#undef PerlIO_write
+SSize_t
+PerlIO_write(PerlIO *f, const void *vbuf, Size_t count)
+{
+ if (f && *f)
+ return (*PerlIOBase(f)->tab->Write)(f,vbuf,count);
+ else
+ {
+ SETERRNO(EBADF,SS$_IVCHAN);
+ return -1;
+ }
+}
+
+#undef PerlIO_seek
int
PerlIO_seek(PerlIO *f, Off_t offset, int whence)
{
- return (*PerlIOBase(f)->tab->Seek)(f,offset,whence);
+ if (f && *f)
+ return (*PerlIOBase(f)->tab->Seek)(f,offset,whence);
+ else
+ {
+ SETERRNO(EBADF,SS$_IVCHAN);
+ return -1;
+ }
}
#undef PerlIO_tell
Off_t
PerlIO_tell(PerlIO *f)
{
- return (*PerlIOBase(f)->tab->Tell)(f);
+ if (f && *f)
+ return (*PerlIOBase(f)->tab->Tell)(f);
+ else
+ {
+ SETERRNO(EBADF,SS$_IVCHAN);
+ return -1;
+ }
}
#undef PerlIO_flush
{
if (f)
{
- return (*PerlIOBase(f)->tab->Flush)(f);
+ if (*f)
+ {
+ PerlIO_funcs *tab = PerlIOBase(f)->tab;
+ if (tab && tab->Flush)
+ {
+ return (*tab->Flush)(f);
+ }
+ else
+ {
+ PerlIO_debug("Cannot flush f=%p :%s\n",f,tab->name);
+ SETERRNO(EBADF,SS$_IVCHAN);
+ return -1;
+ }
+ }
+ else
+ {
+ PerlIO_debug("Cannot flush f=%p\n",f);
+ SETERRNO(EBADF,SS$_IVCHAN);
+ return -1;
+ }
}
- else
- {
+ else
+ {
+ /* Is it good API design to do flush-all on NULL,
+ * a potentially errorneous input? Maybe some magical
+ * value (PerlIO* PERLIO_FLUSH_ALL = (PerlIO*)-1;)?
+ * Yes, stdio does similar things on fflush(NULL),
+ * but should we be bound by their design decisions?
+ * --jhi */
PerlIO **table = &_perlio;
int code = 0;
while ((f = *table))
}
}
+void
+PerlIOBase_flush_linebuf()
+{
+ PerlIO **table = &_perlio;
+ PerlIO *f;
+ while ((f = *table))
+ {
+ int i;
+ table = (PerlIO **)(f++);
+ for (i=1; i < PERLIO_TABLE_SIZE; i++)
+ {
+ if (*f && (PerlIOBase(f)->flags & (PERLIO_F_LINEBUF|PERLIO_F_CANWRITE))
+ == (PERLIO_F_LINEBUF|PERLIO_F_CANWRITE))
+ PerlIO_flush(f);
+ f++;
+ }
+ }
+}
+
#undef PerlIO_fill
int
PerlIO_fill(PerlIO *f)
{
- return (*PerlIOBase(f)->tab->Fill)(f);
+ if (f && *f)
+ return (*PerlIOBase(f)->tab->Fill)(f);
+ else
+ {
+ SETERRNO(EBADF,SS$_IVCHAN);
+ return -1;
+ }
}
#undef PerlIO_isutf8
int
PerlIO_isutf8(PerlIO *f)
{
- return (PerlIOBase(f)->flags & PERLIO_F_UTF8) != 0;
+ if (f && *f)
+ return (PerlIOBase(f)->flags & PERLIO_F_UTF8) != 0;
+ else
+ {
+ SETERRNO(EBADF,SS$_IVCHAN);
+ return -1;
+ }
}
#undef PerlIO_eof
int
PerlIO_eof(PerlIO *f)
{
- return (*PerlIOBase(f)->tab->Eof)(f);
+ if (f && *f)
+ return (*PerlIOBase(f)->tab->Eof)(f);
+ else
+ {
+ SETERRNO(EBADF,SS$_IVCHAN);
+ return -1;
+ }
}
#undef PerlIO_error
int
PerlIO_error(PerlIO *f)
{
- return (*PerlIOBase(f)->tab->Error)(f);
+ if (f && *f)
+ return (*PerlIOBase(f)->tab->Error)(f);
+ else
+ {
+ SETERRNO(EBADF,SS$_IVCHAN);
+ return -1;
+ }
}
#undef PerlIO_clearerr
void
PerlIO_clearerr(PerlIO *f)
{
- (*PerlIOBase(f)->tab->Clearerr)(f);
+ if (f && *f)
+ (*PerlIOBase(f)->tab->Clearerr)(f);
+ else
+ SETERRNO(EBADF,SS$_IVCHAN);
}
#undef PerlIO_setlinebuf
void
PerlIO_setlinebuf(PerlIO *f)
{
- (*PerlIOBase(f)->tab->Setlinebuf)(f);
+ if (f && *f)
+ (*PerlIOBase(f)->tab->Setlinebuf)(f);
+ else
+ SETERRNO(EBADF,SS$_IVCHAN);
}
#undef PerlIO_has_base
int
PerlIO_has_base(PerlIO *f)
{
- if (f && *f)
- {
- return (PerlIOBase(f)->tab->Get_base != NULL);
- }
+ if (f && *f) { return (PerlIOBase(f)->tab->Get_base != NULL); }
return 0;
}
int
PerlIO_fast_gets(PerlIO *f)
{
- if (f && *f)
+ if (f && *f && (PerlIOBase(f)->flags & PERLIO_F_FASTGETS))
{
- PerlIOl *l = PerlIOBase(f);
- return (l->tab->Set_ptrcnt != NULL);
+ PerlIO_funcs *tab = PerlIOBase(f)->tab;
+ return (tab->Set_ptrcnt != NULL);
}
return 0;
}
STDCHAR *
PerlIO_get_base(PerlIO *f)
{
- return (*PerlIOBase(f)->tab->Get_base)(f);
+ if (f && *f)
+ return (*PerlIOBase(f)->tab->Get_base)(f);
+ return NULL;
}
#undef PerlIO_get_bufsiz
int
PerlIO_get_bufsiz(PerlIO *f)
{
- return (*PerlIOBase(f)->tab->Get_bufsiz)(f);
+ if (f && *f)
+ return (*PerlIOBase(f)->tab->Get_bufsiz)(f);
+ return 0;
}
#undef PerlIO_get_ptr
STDCHAR *
PerlIO_get_ptr(PerlIO *f)
{
- return (*PerlIOBase(f)->tab->Get_ptr)(f);
+ PerlIO_funcs *tab = PerlIOBase(f)->tab;
+ if (tab->Get_ptr == NULL)
+ return NULL;
+ return (*tab->Get_ptr)(f);
}
#undef PerlIO_get_cnt
int
PerlIO_get_cnt(PerlIO *f)
{
- return (*PerlIOBase(f)->tab->Get_cnt)(f);
+ PerlIO_funcs *tab = PerlIOBase(f)->tab;
+ if (tab->Get_cnt == NULL)
+ return 0;
+ return (*tab->Get_cnt)(f);
}
#undef PerlIO_set_cnt
(*PerlIOBase(f)->tab->Set_ptrcnt)(f,NULL,cnt);
}
-#undef PerlIO_set_ptrcnt
-void
-PerlIO_set_ptrcnt(PerlIO *f, STDCHAR *ptr, int cnt)
+#undef PerlIO_set_ptrcnt
+void
+PerlIO_set_ptrcnt(PerlIO *f, STDCHAR *ptr, int cnt)
+{
+ PerlIO_funcs *tab = PerlIOBase(f)->tab;
+ if (tab->Set_ptrcnt == NULL)
+ {
+ dTHX;
+ Perl_croak(aTHX_ "PerlIO buffer snooping abuse");
+ }
+ (*PerlIOBase(f)->tab->Set_ptrcnt)(f,ptr,cnt);
+}
+
+/*--------------------------------------------------------------------------------------*/
+/* utf8 and raw dummy layers */
+
+IV
+PerlIOUtf8_pushed(PerlIO *f, const char *mode, SV *arg)
+{
+ if (PerlIONext(f))
+ {
+ dTHX;
+ PerlIO_funcs *tab = PerlIOBase(f)->tab;
+ PerlIO_pop(aTHX_ f);
+ if (tab->kind & PERLIO_K_UTF8)
+ PerlIOBase(f)->flags |= PERLIO_F_UTF8;
+ else
+ PerlIOBase(f)->flags &= ~PERLIO_F_UTF8;
+ return 0;
+ }
+ return -1;
+}
+
+PerlIO_funcs PerlIO_utf8 = {
+ "utf8",
+ sizeof(PerlIOl),
+ PERLIO_K_DUMMY|PERLIO_F_UTF8,
+ PerlIOUtf8_pushed,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL, /* flush */
+ NULL, /* fill */
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL, /* get_base */
+ NULL, /* get_bufsiz */
+ NULL, /* get_ptr */
+ NULL, /* get_cnt */
+ NULL, /* set_ptrcnt */
+};
+
+PerlIO_funcs PerlIO_byte = {
+ "bytes",
+ sizeof(PerlIOl),
+ PERLIO_K_DUMMY,
+ PerlIOUtf8_pushed,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL, /* flush */
+ NULL, /* fill */
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL, /* get_base */
+ NULL, /* get_bufsiz */
+ NULL, /* get_ptr */
+ NULL, /* get_cnt */
+ NULL, /* set_ptrcnt */
+};
+
+PerlIO *
+PerlIORaw_open(pTHX_ PerlIO_funcs *self, AV *layers, IV n,const char *mode, int fd, int imode, int perm, PerlIO *old, int narg, SV **args)
{
- (*PerlIOBase(f)->tab->Set_ptrcnt)(f,ptr,cnt);
+ PerlIO_funcs *tab = PerlIO_default_btm();
+ return (*tab->Open)(aTHX_ tab,layers,n-2,mode,fd,imode,perm,old,narg,args);
}
+PerlIO_funcs PerlIO_raw = {
+ "raw",
+ sizeof(PerlIOl),
+ PERLIO_K_DUMMY,
+ PerlIORaw_pushed,
+ PerlIOBase_popped,
+ PerlIORaw_open,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL, /* flush */
+ NULL, /* fill */
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL, /* get_base */
+ NULL, /* get_bufsiz */
+ NULL, /* get_ptr */
+ NULL, /* get_cnt */
+ NULL, /* set_ptrcnt */
+};
+/*--------------------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------------------*/
/* "Methods" of the "base class" */
return PerlIO_fileno(PerlIONext(f));
}
+char *
+PerlIO_modestr(PerlIO *f,char *buf)
+{
+ char *s = buf;
+ IV flags = PerlIOBase(f)->flags;
+ if (flags & PERLIO_F_APPEND)
+ {
+ *s++ = 'a';
+ if (flags & PERLIO_F_CANREAD)
+ {
+ *s++ = '+';
+ }
+ }
+ else if (flags & PERLIO_F_CANREAD)
+ {
+ *s++ = 'r';
+ if (flags & PERLIO_F_CANWRITE)
+ *s++ = '+';
+ }
+ else if (flags & PERLIO_F_CANWRITE)
+ {
+ *s++ = 'w';
+ if (flags & PERLIO_F_CANREAD)
+ {
+ *s++ = '+';
+ }
+ }
+#if O_TEXT != O_BINARY
+ if (!(flags & PERLIO_F_CRLF))
+ *s++ = 'b';
+#endif
+ *s = '\0';
+ return buf;
+}
+
IV
-PerlIOBase_pushed(PerlIO *f, const char *mode)
+PerlIOBase_pushed(PerlIO *f, const char *mode, SV *arg)
{
PerlIOl *l = PerlIOBase(f);
+ const char *omode = mode;
+ char temp[8];
+ PerlIO_funcs *tab = PerlIOBase(f)->tab;
l->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE|
- PERLIO_F_TRUNCATE|PERLIO_F_APPEND|PERLIO_F_BINARY);
+ PERLIO_F_TRUNCATE|PERLIO_F_APPEND);
+ if (tab->Set_ptrcnt != NULL)
+ l->flags |= PERLIO_F_FASTGETS;
if (mode)
{
+ if (*mode == '#' || *mode == 'I')
+ mode++;
switch (*mode++)
{
case 'r':
- l->flags = PERLIO_F_CANREAD;
+ l->flags |= PERLIO_F_CANREAD;
break;
case 'a':
- l->flags = PERLIO_F_APPEND|PERLIO_F_CANWRITE;
+ l->flags |= PERLIO_F_APPEND|PERLIO_F_CANWRITE;
break;
case 'w':
- l->flags = PERLIO_F_TRUNCATE|PERLIO_F_CANWRITE;
+ l->flags |= PERLIO_F_TRUNCATE|PERLIO_F_CANWRITE;
break;
default:
- errno = EINVAL;
+ SETERRNO(EINVAL,LIB$_INVARG);
return -1;
}
while (*mode)
l->flags |= PERLIO_F_CANREAD|PERLIO_F_CANWRITE;
break;
case 'b':
- l->flags |= PERLIO_F_BINARY;
+ l->flags &= ~PERLIO_F_CRLF;
+ break;
+ case 't':
+ l->flags |= PERLIO_F_CRLF;
break;
default:
- errno = EINVAL;
- return -1;
+ SETERRNO(EINVAL,LIB$_INVARG);
+ return -1;
}
}
}
if (l->next)
{
l->flags |= l->next->flags &
- (PERLIO_F_CANREAD|PERLIO_F_CANWRITE|
- PERLIO_F_TRUNCATE|PERLIO_F_APPEND|PERLIO_F_BINARY);
+ (PERLIO_F_CANREAD|PERLIO_F_CANWRITE|PERLIO_F_TRUNCATE|PERLIO_F_APPEND);
}
}
+#if 0
+ PerlIO_debug("PerlIOBase_pushed f=%p %s %s fl=%08"UVxf" (%s)\n",
+ f,PerlIOBase(f)->tab->name,(omode) ? omode : "(Null)",
+ l->flags,PerlIO_modestr(f,temp));
+#endif
return 0;
}
SSize_t
PerlIOBase_unread(PerlIO *f, const void *vbuf, Size_t count)
{
+ dTHX;
Off_t old = PerlIO_tell(f);
- if (PerlIO_seek(f,-((Off_t)count),SEEK_CUR) == 0)
+ SSize_t done;
+ PerlIO_push(aTHX_ f,&PerlIO_pending,"r",Nullsv);
+ done = PerlIOBuf_unread(f,vbuf,count);
+ PerlIOSelf(f,PerlIOBuf)->posn = old - done;
+ return done;
+}
+
+SSize_t
+PerlIOBase_read(PerlIO *f, void *vbuf, Size_t count)
+{
+ STDCHAR *buf = (STDCHAR *) vbuf;
+ if (f)
{
- Off_t new = PerlIO_tell(f);
- return old - new;
+ if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD))
+ return 0;
+ while (count > 0)
+ {
+ SSize_t avail = PerlIO_get_cnt(f);
+ SSize_t take = 0;
+ if (avail > 0)
+ take = (count < avail) ? count : avail;
+ if (take > 0)
+ {
+ STDCHAR *ptr = PerlIO_get_ptr(f);
+ Copy(ptr,buf,take,STDCHAR);
+ PerlIO_set_ptrcnt(f,ptr+take,(avail -= take));
+ count -= take;
+ buf += take;
+ }
+ if (count > 0 && avail <= 0)
+ {
+ if (PerlIO_fill(f) != 0)
+ break;
+ }
+ }
+ return (buf - (STDCHAR *) vbuf);
}
return 0;
}
PerlIOBase_close(PerlIO *f)
{
IV code = 0;
+ PerlIO *n = PerlIONext(f);
if (PerlIO_flush(f) != 0)
code = -1;
- if (PerlIO_close(PerlIONext(f)) != 0)
+ if (n && *n && (*PerlIOBase(n)->tab->Close)(n) != 0)
code = -1;
PerlIOBase(f)->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE|PERLIO_F_OPEN);
return code;
{
if (f && *f)
{
- PerlIOBase(f)->flags &= ~PERLIO_F_ERROR;
+ PerlIO *n = PerlIONext(f);
+ PerlIOBase(f)->flags &= ~(PERLIO_F_ERROR|PERLIO_F_EOF);
+ if (n)
+ PerlIO_clearerr(n);
}
}
void
PerlIOBase_setlinebuf(PerlIO *f)
{
-
+ if (f)
+ {
+ PerlIOBase(f)->flags |= PERLIO_F_LINEBUF;
+ }
}
/*--------------------------------------------------------------------------------------*/
oflags |= O_WRONLY;
break;
}
+ if (*mode == 'b')
+ {
+ oflags |= O_BINARY;
+ oflags &= ~O_TEXT;
+ mode++;
+ }
+ else if (*mode == 't')
+ {
+ oflags |= O_TEXT;
+ oflags &= ~O_BINARY;
+ mode++;
+ }
+ /* Always open in binary mode */
+ oflags |= O_BINARY;
if (*mode || oflags == -1)
{
- errno = EINVAL;
+ SETERRNO(EINVAL,LIB$_INVARG);
oflags = -1;
}
return oflags;
return PerlIOSelf(f,PerlIOUnix)->fd;
}
-PerlIO *
-PerlIOUnix_fdopen(PerlIO_funcs *self, int fd,const char *mode)
+IV
+PerlIOUnix_pushed(PerlIO *f, const char *mode, SV *arg)
{
- PerlIO *f = NULL;
- if (*mode == 'I')
- mode++;
- if (fd >= 0)
+ IV code = PerlIOBase_pushed(f,mode,arg);
+ if (*PerlIONext(f))
{
- int oflags = PerlIOUnix_oflags(mode);
- if (oflags != -1)
- {
- PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),self,mode),PerlIOUnix);
- s->fd = fd;
- s->oflags = oflags;
- PerlIOBase(f)->flags |= PERLIO_F_OPEN;
- }
+ PerlIOUnix *s = PerlIOSelf(f,PerlIOUnix);
+ s->fd = PerlIO_fileno(PerlIONext(f));
+ s->oflags = PerlIOUnix_oflags(mode);
}
- return f;
+ PerlIOBase(f)->flags |= PERLIO_F_OPEN;
+ return code;
}
PerlIO *
-PerlIOUnix_open(PerlIO_funcs *self, const char *path,const char *mode)
+PerlIOUnix_open(pTHX_ PerlIO_funcs *self, AV *layers, IV n, const char *mode, int fd, int imode, int perm, PerlIO *f, int narg, SV **args)
{
- PerlIO *f = NULL;
- int oflags = PerlIOUnix_oflags(mode);
- if (oflags != -1)
+ if (f)
{
- int fd = PerlLIO_open3(path,oflags,0666);
- if (fd >= 0)
+ if (PerlIOBase(f)->flags & PERLIO_F_OPEN)
+ (*PerlIOBase(f)->tab->Close)(f);
+ }
+ if (narg > 0)
+ {
+ char *path = SvPV_nolen(*args);
+ if (*mode == '#')
+ mode++;
+ else
+ {
+ imode = PerlIOUnix_oflags(mode);
+ perm = 0666;
+ }
+ if (imode != -1)
{
- PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),self,mode),PerlIOUnix);
- s->fd = fd;
- s->oflags = oflags;
- PerlIOBase(f)->flags |= PERLIO_F_OPEN;
+ fd = PerlLIO_open3(path,imode,perm);
}
}
- return f;
-}
-
-int
-PerlIOUnix_reopen(const char *path, const char *mode, PerlIO *f)
-{
- PerlIOUnix *s = PerlIOSelf(f,PerlIOUnix);
- int oflags = PerlIOUnix_oflags(mode);
- if (PerlIOBase(f)->flags & PERLIO_F_OPEN)
- (*PerlIOBase(f)->tab->Close)(f);
- if (oflags != -1)
+ if (fd >= 0)
{
- int fd = PerlLIO_open3(path,oflags,0666);
- if (fd >= 0)
+ PerlIOUnix *s;
+ if (*mode == 'I')
+ mode++;
+ if (!f)
{
- s->fd = fd;
- s->oflags = oflags;
- PerlIOBase(f)->flags |= PERLIO_F_OPEN;
- return 0;
+ f = PerlIO_allocate(aTHX);
+ s = PerlIOSelf(PerlIO_push(aTHX_ f,self,mode,PerlIOArg),PerlIOUnix);
}
+ else
+ s = PerlIOSelf(f,PerlIOUnix);
+ s->fd = fd;
+ s->oflags = imode;
+ PerlIOBase(f)->flags |= PERLIO_F_OPEN;
+ return f;
+ }
+ else
+ {
+ if (f)
+ {
+ /* FIXME: pop layers ??? */
+ }
+ return NULL;
}
- return -1;
}
SSize_t
PerlIOUnix_read(PerlIO *f, void *vbuf, Size_t count)
{
+ dTHX;
int fd = PerlIOSelf(f,PerlIOUnix)->fd;
if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD))
return 0;
PerlIOBase(f)->flags |= PERLIO_F_EOF;
return len;
}
+ PERL_ASYNC_CHECK();
}
}
SSize_t
PerlIOUnix_write(PerlIO *f, const void *vbuf, Size_t count)
{
+ dTHX;
int fd = PerlIOSelf(f,PerlIOUnix)->fd;
while (1)
{
PerlIOBase(f)->flags |= PERLIO_F_ERROR;
return len;
}
+ PERL_ASYNC_CHECK();
}
}
IV
PerlIOUnix_seek(PerlIO *f, Off_t offset, int whence)
{
+ dTHX;
Off_t new = PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,offset,whence);
PerlIOBase(f)->flags &= ~PERLIO_F_EOF;
return (new == (Off_t) -1) ? -1 : 0;
Off_t
PerlIOUnix_tell(PerlIO *f)
{
+ dTHX;
+ Off_t posn = PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,0,SEEK_CUR);
return PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,0,SEEK_CUR);
}
IV
PerlIOUnix_close(PerlIO *f)
{
+ dTHX;
int fd = PerlIOSelf(f,PerlIOUnix)->fd;
int code = 0;
while (PerlLIO_close(fd) != 0)
code = -1;
break;
}
+ PERL_ASYNC_CHECK();
}
if (code == 0)
{
PerlIO_funcs PerlIO_unix = {
"unix",
sizeof(PerlIOUnix),
- 0,
- PerlIOUnix_fileno,
- PerlIOUnix_fdopen,
- PerlIOUnix_open,
- PerlIOUnix_reopen,
- PerlIOBase_pushed,
+ PERLIO_K_RAW,
+ PerlIOUnix_pushed,
PerlIOBase_noop_ok,
+ PerlIOUnix_open,
+ NULL,
+ PerlIOUnix_fileno,
PerlIOUnix_read,
PerlIOBase_unread,
PerlIOUnix_write,
IV
PerlIOStdio_fileno(PerlIO *f)
{
- return fileno(PerlIOSelf(f,PerlIOStdio)->stdio);
+ dTHX;
+ return PerlSIO_fileno(PerlIOSelf(f,PerlIOStdio)->stdio);
}
-
-PerlIO *
-PerlIOStdio_fdopen(PerlIO_funcs *self, int fd,const char *mode)
+char *
+PerlIOStdio_mode(const char *mode,char *tmode)
{
- PerlIO *f = NULL;
- int init = 0;
- if (*mode == 'I')
+ char *ret = tmode;
+ while (*mode)
{
- init = 1;
- mode++;
+ *tmode++ = *mode++;
}
- if (fd >= 0)
+ if (O_BINARY != O_TEXT)
{
- FILE *stdio = NULL;
- if (init)
- {
- switch(fd)
- {
- case 0:
- stdio = stdin;
- break;
- case 1:
- stdio = stdout;
- break;
- case 2:
- stdio = stderr;
- break;
- }
- }
- else
- stdio = fdopen(fd,mode);
+ *tmode++ = 'b';
+ }
+ *tmode = '\0';
+ return ret;
+}
+
+/* This isn't used yet ... */
+IV
+PerlIOStdio_pushed(PerlIO *f, const char *mode, SV *arg)
+{
+ dTHX;
+ if (*PerlIONext(f))
+ {
+ PerlIOStdio *s = PerlIOSelf(f,PerlIOStdio);
+ char tmode[8];
+ FILE *stdio = PerlSIO_fdopen(PerlIO_fileno(PerlIONext(f)),mode = PerlIOStdio_mode(mode,tmode));
if (stdio)
- {
- PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),self,mode),PerlIOStdio);
- s->stdio = stdio;
- }
+ s->stdio = stdio;
+ else
+ return -1;
}
- return f;
+ return PerlIOBase_pushed(f,mode,arg);
}
#undef PerlIO_importFILE
PerlIO *
PerlIO_importFILE(FILE *stdio, int fl)
{
+ dTHX;
PerlIO *f = NULL;
if (stdio)
{
- PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),&PerlIO_stdio,"r+"),PerlIOStdio);
+ PerlIOStdio *s = PerlIOSelf(PerlIO_push(aTHX_ (f = PerlIO_allocate(aTHX)),&PerlIO_stdio,"r+",Nullsv),PerlIOStdio);
s->stdio = stdio;
}
return f;
}
PerlIO *
-PerlIOStdio_open(PerlIO_funcs *self, const char *path,const char *mode)
+PerlIOStdio_open(pTHX_ PerlIO_funcs *self, AV *layers, IV n, const char *mode, int fd, int imode, int perm, PerlIO *f, int narg, SV **args)
{
- PerlIO *f = NULL;
- FILE *stdio = fopen(path,mode);
- if (stdio)
+ char tmode[8];
+ if (f)
{
- PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),self,mode),PerlIOStdio);
- s->stdio = stdio;
+ char *path = SvPV_nolen(*args);
+ PerlIOStdio *s = PerlIOSelf(f,PerlIOStdio);
+ FILE *stdio = PerlSIO_freopen(path,(mode = PerlIOStdio_mode(mode,tmode)),s->stdio);
+ if (!s->stdio)
+ return NULL;
+ s->stdio = stdio;
+ return f;
}
- return f;
-}
-
-int
-PerlIOStdio_reopen(const char *path, const char *mode, PerlIO *f)
-{
- PerlIOStdio *s = PerlIOSelf(f,PerlIOStdio);
- FILE *stdio = freopen(path,mode,s->stdio);
- if (!s->stdio)
- return -1;
- s->stdio = stdio;
- return 0;
+ else
+ {
+ if (narg > 0)
+ {
+ char *path = SvPV_nolen(*args);
+ if (*mode == '#')
+ {
+ mode++;
+ fd = PerlLIO_open3(path,imode,perm);
+ }
+ else
+ {
+ FILE *stdio = PerlSIO_fopen(path,mode);
+ if (stdio)
+ {
+ PerlIOStdio *s = PerlIOSelf(PerlIO_push(aTHX_ (f = PerlIO_allocate(aTHX)), self,
+ (mode = PerlIOStdio_mode(mode,tmode)),PerlIOArg),
+ PerlIOStdio);
+ s->stdio = stdio;
+ }
+ return f;
+ }
+ }
+ if (fd >= 0)
+ {
+ FILE *stdio = NULL;
+ int init = 0;
+ if (*mode == 'I')
+ {
+ init = 1;
+ mode++;
+ }
+ if (init)
+ {
+ switch(fd)
+ {
+ case 0:
+ stdio = PerlSIO_stdin;
+ break;
+ case 1:
+ stdio = PerlSIO_stdout;
+ break;
+ case 2:
+ stdio = PerlSIO_stderr;
+ break;
+ }
+ }
+ else
+ {
+ stdio = PerlSIO_fdopen(fd,mode = PerlIOStdio_mode(mode,tmode));
+ }
+ if (stdio)
+ {
+ PerlIOStdio *s = PerlIOSelf(PerlIO_push(aTHX_ (f = PerlIO_allocate(aTHX)),self,mode,PerlIOArg),PerlIOStdio);
+ s->stdio = stdio;
+ return f;
+ }
+ }
+ }
+ return NULL;
}
SSize_t
PerlIOStdio_read(PerlIO *f, void *vbuf, Size_t count)
{
+ dTHX;
FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio;
SSize_t got = 0;
if (count == 1)
/* Perl is expecting PerlIO_getc() to fill the buffer
* Linux's stdio does not do that for fread()
*/
- int ch = fgetc(s);
+ int ch = PerlSIO_fgetc(s);
if (ch != EOF)
{
*buf = ch;
}
}
else
- got = fread(vbuf,1,count,s);
+ got = PerlSIO_fread(vbuf,1,count,s);
return got;
}
SSize_t
PerlIOStdio_unread(PerlIO *f, const void *vbuf, Size_t count)
{
+ dTHX;
FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio;
STDCHAR *buf = ((STDCHAR *)vbuf)+count-1;
SSize_t unread = 0;
while (count > 0)
{
int ch = *buf-- & 0xff;
- if (ungetc(ch,s) != ch)
+ if (PerlSIO_ungetc(ch,s) != ch)
break;
unread++;
count--;
SSize_t
PerlIOStdio_write(PerlIO *f, const void *vbuf, Size_t count)
{
- return fwrite(vbuf,1,count,PerlIOSelf(f,PerlIOStdio)->stdio);
+ dTHX;
+ return PerlSIO_fwrite(vbuf,1,count,PerlIOSelf(f,PerlIOStdio)->stdio);
}
IV
PerlIOStdio_seek(PerlIO *f, Off_t offset, int whence)
{
+ dTHX;
FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio;
- return fseek(stdio,offset,whence);
+ return PerlSIO_fseek(stdio,offset,whence);
}
Off_t
PerlIOStdio_tell(PerlIO *f)
{
+ dTHX;
FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio;
- return ftell(stdio);
+ return PerlSIO_ftell(stdio);
}
IV
PerlIOStdio_close(PerlIO *f)
{
- return fclose(PerlIOSelf(f,PerlIOStdio)->stdio);
+ dTHX;
+#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)
{
+ dTHX;
FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio;
- return fflush(stdio);
+ if (PerlIOBase(f)->flags & PERLIO_F_CANWRITE)
+ {
+ return PerlSIO_fflush(stdio);
+ }
+ else
+ {
+#if 0
+ /* FIXME: This discards ungetc() and pre-read stuff which is
+ not right if this is just a "sync" from a layer above
+ Suspect right design is to do _this_ but not have layer above
+ flush this layer read-to-read
+ */
+ /* Not writeable - sync by attempting a seek */
+ int err = errno;
+ if (PerlSIO_fseek(stdio,(Off_t) 0, SEEK_CUR) != 0)
+ errno = err;
+#endif
+ }
+ return 0;
}
IV
PerlIOStdio_fill(PerlIO *f)
{
+ dTHX;
FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio;
int c;
- if (fflush(stdio) != 0)
- return EOF;
- c = fgetc(stdio);
- if (c == EOF || ungetc(c,stdio) != c)
+ /* fflush()ing read-only streams can cause trouble on some stdio-s */
+ if ((PerlIOBase(f)->flags & PERLIO_F_CANWRITE))
+ {
+ if (PerlSIO_fflush(stdio) != 0)
+ return EOF;
+ }
+ c = PerlSIO_fgetc(stdio);
+ if (c == EOF || PerlSIO_ungetc(c,stdio) != c)
return EOF;
return 0;
}
IV
PerlIOStdio_eof(PerlIO *f)
{
- return feof(PerlIOSelf(f,PerlIOStdio)->stdio);
+ dTHX;
+ return PerlSIO_feof(PerlIOSelf(f,PerlIOStdio)->stdio);
}
IV
PerlIOStdio_error(PerlIO *f)
{
- return ferror(PerlIOSelf(f,PerlIOStdio)->stdio);
+ dTHX;
+ return PerlSIO_ferror(PerlIOSelf(f,PerlIOStdio)->stdio);
}
void
PerlIOStdio_clearerr(PerlIO *f)
{
- clearerr(PerlIOSelf(f,PerlIOStdio)->stdio);
+ dTHX;
+ PerlSIO_clearerr(PerlIOSelf(f,PerlIOStdio)->stdio);
}
void
PerlIOStdio_setlinebuf(PerlIO *f)
{
+ dTHX;
#ifdef HAS_SETLINEBUF
- setlinebuf(PerlIOSelf(f,PerlIOStdio)->stdio);
+ PerlSIO_setlinebuf(PerlIOSelf(f,PerlIOStdio)->stdio);
#else
- setvbuf(PerlIOSelf(f,PerlIOStdio)->stdio, Nullch, _IOLBF, 0);
+ PerlSIO_setvbuf(PerlIOSelf(f,PerlIOStdio)->stdio, Nullch, _IOLBF, 0);
#endif
}
STDCHAR *
PerlIOStdio_get_base(PerlIO *f)
{
+ dTHX;
FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio;
- return FILE_base(stdio);
+ return PerlSIO_get_base(stdio);
}
Size_t
PerlIOStdio_get_bufsiz(PerlIO *f)
{
+ dTHX;
FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio;
- return FILE_bufsiz(stdio);
+ return PerlSIO_get_bufsiz(stdio);
}
#endif
STDCHAR *
PerlIOStdio_get_ptr(PerlIO *f)
{
+ dTHX;
FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio;
- return FILE_ptr(stdio);
+ return PerlSIO_get_ptr(stdio);
}
SSize_t
PerlIOStdio_get_cnt(PerlIO *f)
{
+ dTHX;
FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio;
- return FILE_cnt(stdio);
+ return PerlSIO_get_cnt(stdio);
}
void
PerlIOStdio_set_ptrcnt(PerlIO *f,STDCHAR *ptr,SSize_t cnt)
{
+ dTHX;
FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio;
if (ptr != NULL)
{
#ifdef STDIO_PTR_LVALUE
- FILE_ptr(stdio) = ptr;
+ PerlSIO_set_ptr(stdio,ptr);
#ifdef STDIO_PTR_LVAL_SETS_CNT
- if (FILE_cnt(stdio) != (cnt))
+ if (PerlSIO_get_cnt(stdio) != (cnt))
{
dTHX;
- assert(FILE_cnt(stdio) == (cnt));
+ assert(PerlSIO_get_cnt(stdio) == (cnt));
}
#endif
#if (!defined(STDIO_PTR_LVAL_NOCHANGE_CNT))
return;
#endif
#else /* STDIO_PTR_LVALUE */
- abort();
+ PerlProc_abort();
#endif /* STDIO_PTR_LVALUE */
}
/* Now (or only) set cnt */
#ifdef STDIO_CNT_LVALUE
- FILE_cnt(stdio) = cnt;
+ PerlSIO_set_cnt(stdio,cnt);
#else /* STDIO_CNT_LVALUE */
#if (defined(STDIO_PTR_LVALUE) && defined(STDIO_PTR_LVAL_SETS_CNT))
- FILE_ptr(stdio) = FILE_ptr(stdio)+(FILE_cnt(stdio)-cnt);
+ PerlSIO_set_ptr(stdio,PerlSIO_get_ptr(stdio)+(PerlSIO_get_cnt(stdio)-cnt));
#else /* STDIO_PTR_LVAL_SETS_CNT */
- abort();
+ PerlProc_abort();
#endif /* STDIO_PTR_LVAL_SETS_CNT */
#endif /* STDIO_CNT_LVALUE */
}
PerlIO_funcs PerlIO_stdio = {
"stdio",
sizeof(PerlIOStdio),
- 0,
- PerlIOStdio_fileno,
- PerlIOStdio_fdopen,
- PerlIOStdio_open,
- PerlIOStdio_reopen,
+ PERLIO_K_BUFFERED,
PerlIOBase_pushed,
PerlIOBase_noop_ok,
+ PerlIOStdio_open,
+ NULL,
+ PerlIOStdio_fileno,
PerlIOStdio_read,
PerlIOStdio_unread,
PerlIOStdio_write,
FILE *
PerlIO_exportFILE(PerlIO *f, int fl)
{
+ FILE *stdio;
PerlIO_flush(f);
- /* Should really push stdio discipline when we have them */
- return fdopen(PerlIO_fileno(f),"r+");
+ stdio = fdopen(PerlIO_fileno(f),"r+");
+ if (stdio)
+ {
+ dTHX;
+ PerlIOStdio *s = PerlIOSelf(PerlIO_push(aTHX_ f,&PerlIO_stdio,"r+",Nullsv),PerlIOStdio);
+ s->stdio = stdio;
+ }
+ return stdio;
}
#undef PerlIO_findFILE
FILE *
PerlIO_findFILE(PerlIO *f)
{
+ PerlIOl *l = *f;
+ while (l)
+ {
+ if (l->tab == &PerlIO_stdio)
+ {
+ PerlIOStdio *s = PerlIOSelf(&l,PerlIOStdio);
+ return s->stdio;
+ }
+ l = *PerlIONext(&l);
+ }
return PerlIO_exportFILE(f,0);
}
/*--------------------------------------------------------------------------------------*/
/* perlio buffer layer */
-PerlIO *
-PerlIOBuf_fdopen(PerlIO_funcs *self, int fd, const char *mode)
+IV
+PerlIOBuf_pushed(PerlIO *f, const char *mode, SV *arg)
{
- PerlIO_funcs *tab = PerlIO_default_btm();
- int init = 0;
- PerlIO *f;
- if (*mode == 'I')
+ PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
+ int fd = PerlIO_fileno(f);
+ Off_t posn;
+ dTHX;
+ if (fd >= 0 && PerlLIO_isatty(fd))
{
- init = 1;
- mode++;
+ PerlIOBase(f)->flags |= PERLIO_F_LINEBUF|PERLIO_F_TTY;
}
- f = (*tab->Fdopen)(tab,fd,mode);
- if (f)
+ posn = PerlIO_tell(PerlIONext(f));
+ if (posn != (Off_t) -1)
{
- /* Initial stderr is unbuffered */
- if (!init || fd != 2)
- {
- PerlIOBuf *b = PerlIOSelf(PerlIO_push(f,self,NULL),PerlIOBuf);
- b->posn = PerlIO_tell(PerlIONext(f));
- }
+ b->posn = posn;
}
- return f;
+ return PerlIOBase_pushed(f,mode,arg);
}
PerlIO *
-PerlIOBuf_open(PerlIO_funcs *self, const char *path, const char *mode)
+PerlIOBuf_open(pTHX_ PerlIO_funcs *self, AV *layers, IV n, const char *mode, int fd, int imode, int perm, PerlIO *f, int narg, SV **args)
{
- PerlIO_funcs *tab = PerlIO_default_btm();
- PerlIO *f = (*tab->Open)(tab,path,mode);
if (f)
{
- PerlIOBuf *b = PerlIOSelf(PerlIO_push(f,self,NULL),PerlIOBuf);
- b->posn = PerlIO_tell(PerlIONext(f));
+ PerlIO *next = PerlIONext(f);
+ PerlIO_funcs *tab = PerlIO_layer_fetch(aTHX_ layers, n-2, PerlIOBase(next)->tab);
+ next = (*tab->Open)(aTHX_ tab, layers, n-2, mode,fd,imode,perm,next,narg,args);
+ if (!next || (*PerlIOBase(f)->tab->Pushed)(f,mode,PerlIOArg) != 0)
+ {
+ return NULL;
+ }
}
- return f;
-}
-
-int
-PerlIOBuf_reopen(const char *path, const char *mode, PerlIO *f)
-{
- PerlIO *next = PerlIONext(f);
- int code = (*PerlIOBase(next)->tab->Reopen)(path,mode,next);
- if (code = 0)
- code = (*PerlIOBase(f)->tab->Pushed)(f,mode);
- if (code == 0)
+ else
{
- PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
- b->posn = PerlIO_tell(PerlIONext(f));
+ PerlIO_funcs *tab = PerlIO_layer_fetch(aTHX_ layers, n-2, PerlIO_default_btm());
+ int init = 0;
+ if (*mode == 'I')
+ {
+ init = 1;
+ mode++;
+ }
+ f = (*tab->Open)(aTHX_ tab, layers, n-2, mode,fd,imode,perm,NULL,narg,args);
+ if (f)
+ {
+ PerlIOBuf *b = PerlIOSelf(PerlIO_push(aTHX_ f,self,mode,PerlIOArg),PerlIOBuf);
+ 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)
+ {
+ /* Initial stderr is unbuffered */
+ PerlIOBase(f)->flags |= PERLIO_F_UNBUF;
+ }
+ }
}
- return code;
+ return f;
}
/* This "flush" is akin to sfio's sync in that it handles files in either
if (PerlIOBase(f)->flags & PERLIO_F_WRBUF)
{
/* write() the buffer */
- STDCHAR *p = b->buf;
- int count;
+ STDCHAR *buf = b->buf;
+ STDCHAR *p = buf;
+ PerlIO *n = PerlIONext(f);
while (p < b->ptr)
{
- count = PerlIO_write(PerlIONext(f),p,b->ptr - p);
+ SSize_t count = PerlIO_write(n,p,b->ptr - p);
if (count > 0)
{
p += count;
}
- else if (count < 0)
+ else if (count < 0 || PerlIO_error(n))
{
PerlIOBase(f)->flags |= PERLIO_F_ERROR;
code = -1;
break;
}
}
- b->posn += (p - b->buf);
+ b->posn += (p - buf);
}
else if (PerlIOBase(f)->flags & PERLIO_F_RDBUF)
{
+ STDCHAR *buf = PerlIO_get_base(f);
/* Note position change */
- b->posn += (b->ptr - b->buf);
+ b->posn += (b->ptr - buf);
if (b->ptr < b->end)
{
/* We did not consume all of it */
}
b->ptr = b->end = b->buf;
PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF);
+ /* FIXME: Is this right for read case ? */
if (PerlIO_flush(PerlIONext(f)) != 0)
code = -1;
return code;
PerlIOBuf_fill(PerlIO *f)
{
PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
+ PerlIO *n = PerlIONext(f);
SSize_t avail;
+ /* FIXME: doing the down-stream flush is a bad idea if it causes
+ pre-read data in stdio buffer to be discarded
+ but this is too simplistic - as it skips _our_ hosekeeping
+ and breaks tell tests.
+ if (!(PerlIOBase(f)->flags & PERLIO_F_RDBUF))
+ {
+ }
+ */
if (PerlIO_flush(f) != 0)
return -1;
+ if (PerlIOBase(f)->flags & PERLIO_F_TTY)
+ PerlIOBase_flush_linebuf();
+
+ if (!b->buf)
+ PerlIO_get_base(f); /* allocate via vtable */
+
b->ptr = b->end = b->buf;
- avail = PerlIO_read(PerlIONext(f),b->ptr,b->bufsiz);
+ if (PerlIO_fast_gets(n))
+ {
+ /* Layer below is also buffered
+ * We do _NOT_ want to call its ->Read() because that will loop
+ * till it gets what we asked for which may hang on a pipe etc.
+ * Instead take anything it has to hand, or ask it to fill _once_.
+ */
+ avail = PerlIO_get_cnt(n);
+ if (avail <= 0)
+ {
+ avail = PerlIO_fill(n);
+ if (avail == 0)
+ avail = PerlIO_get_cnt(n);
+ else
+ {
+ if (!PerlIO_error(n) && PerlIO_eof(n))
+ avail = 0;
+ }
+ }
+ if (avail > 0)
+ {
+ STDCHAR *ptr = PerlIO_get_ptr(n);
+ SSize_t cnt = avail;
+ if (avail > b->bufsiz)
+ avail = b->bufsiz;
+ Copy(ptr,b->buf,avail,STDCHAR);
+ PerlIO_set_ptrcnt(n,ptr+avail,cnt-avail);
+ }
+ }
+ else
+ {
+ avail = PerlIO_read(n,b->ptr,b->bufsiz);
+ }
if (avail <= 0)
{
if (avail == 0)
SSize_t
PerlIOBuf_read(PerlIO *f, void *vbuf, Size_t count)
{
- PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
- STDCHAR *buf = (STDCHAR *) vbuf;
+ PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
if (f)
{
- Size_t got = 0;
if (!b->ptr)
PerlIO_get_base(f);
- if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD))
- return 0;
- while (count > 0)
- {
- SSize_t avail = (b->end - b->ptr);
- if ((SSize_t) count < avail)
- avail = count;
- if (avail > 0)
- {
- Copy(b->ptr,buf,avail,char);
- got += avail;
- b->ptr += avail;
- count -= avail;
- buf += avail;
- }
- if (count && (b->ptr >= b->end))
- {
- if (PerlIO_fill(f) != 0)
- break;
- }
- }
- return got;
+ return PerlIOBase_read(f,vbuf,count);
}
return 0;
}
if (PerlIOBase(f)->flags & PERLIO_F_RDBUF)
{
avail = (b->ptr - b->buf);
- if (avail > (SSize_t) count)
- avail = count;
- b->ptr -= avail;
}
else
{
avail = b->bufsiz;
- if (avail > (SSize_t) count)
- avail = count;
- b->end = b->ptr + avail;
+ b->end = b->buf + avail;
+ b->ptr = b->end;
+ PerlIOBase(f)->flags |= PERLIO_F_RDBUF;
+ b->posn -= b->bufsiz;
}
+ if (avail > (SSize_t) count)
+ avail = count;
if (avail > 0)
{
+ b->ptr -= avail;
buf -= avail;
if (buf != b->ptr)
{
- Copy(buf,b->ptr,avail,char);
+ Copy(buf,b->ptr,avail,STDCHAR);
}
count -= avail;
unread += avail;
{
if (avail)
{
- Copy(buf,b->ptr,avail,char);
+ Copy(buf,b->ptr,avail,STDCHAR);
count -= avail;
buf += avail;
written += avail;
if (b->ptr >= (b->buf + b->bufsiz))
PerlIO_flush(f);
}
+ if (PerlIOBase(f)->flags & PERLIO_F_UNBUF)
+ PerlIO_flush(f);
return written;
}
IV
PerlIOBuf_seek(PerlIO *f, Off_t offset, int whence)
{
- PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
- int code = PerlIO_flush(f);
- if (code == 0)
+ IV code;
+ if ((code = PerlIO_flush(f)) == 0)
{
+ PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
PerlIOBase(f)->flags &= ~PERLIO_F_EOF;
code = PerlIO_seek(PerlIONext(f),offset,whence);
if (code == 0)
return code;
}
-Off_t
-PerlIOBuf_tell(PerlIO *f)
+Off_t
+PerlIOBuf_tell(PerlIO *f)
+{
+ PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
+ Off_t posn = b->posn;
+ if (b->buf)
+ posn += (b->ptr - b->buf);
+ return posn;
+}
+
+IV
+PerlIOBuf_close(PerlIO *f)
+{
+ dTHX;
+ IV code = PerlIOBase_close(f);
+ PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
+ if (b->buf && b->buf != (STDCHAR *) &b->oneword)
+ {
+ PerlMemShared_free(b->buf);
+ }
+ b->buf = NULL;
+ b->ptr = b->end = b->buf;
+ PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF);
+ return code;
+}
+
+STDCHAR *
+PerlIOBuf_get_ptr(PerlIO *f)
+{
+ PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
+ if (!b->buf)
+ PerlIO_get_base(f);
+ return b->ptr;
+}
+
+SSize_t
+PerlIOBuf_get_cnt(PerlIO *f)
+{
+ PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
+ if (!b->buf)
+ PerlIO_get_base(f);
+ if (PerlIOBase(f)->flags & PERLIO_F_RDBUF)
+ return (b->end - b->ptr);
+ return 0;
+}
+
+STDCHAR *
+PerlIOBuf_get_base(PerlIO *f)
+{
+ PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
+ if (!b->buf)
+ {
+ dTHX;
+ if (!b->bufsiz)
+ b->bufsiz = 4096;
+ b->buf = PerlMemShared_calloc(b->bufsiz,sizeof(STDCHAR));
+ if (!b->buf)
+ {
+ b->buf = (STDCHAR *)&b->oneword;
+ b->bufsiz = sizeof(b->oneword);
+ }
+ b->ptr = b->buf;
+ b->end = b->ptr;
+ }
+ return b->buf;
+}
+
+Size_t
+PerlIOBuf_bufsiz(PerlIO *f)
+{
+ PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
+ if (!b->buf)
+ PerlIO_get_base(f);
+ return (b->end - b->buf);
+}
+
+void
+PerlIOBuf_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt)
+{
+ PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
+ if (!b->buf)
+ PerlIO_get_base(f);
+ b->ptr = ptr;
+ if (PerlIO_get_cnt(f) != cnt || b->ptr < b->buf)
+ {
+ dTHX;
+ assert(PerlIO_get_cnt(f) == cnt);
+ assert(b->ptr >= b->buf);
+ }
+ PerlIOBase(f)->flags |= PERLIO_F_RDBUF;
+}
+
+PerlIO_funcs PerlIO_perlio = {
+ "perlio",
+ sizeof(PerlIOBuf),
+ PERLIO_K_BUFFERED,
+ PerlIOBuf_pushed,
+ PerlIOBase_noop_ok,
+ PerlIOBuf_open,
+ NULL,
+ PerlIOBase_fileno,
+ PerlIOBuf_read,
+ PerlIOBuf_unread,
+ PerlIOBuf_write,
+ PerlIOBuf_seek,
+ PerlIOBuf_tell,
+ PerlIOBuf_close,
+ PerlIOBuf_flush,
+ PerlIOBuf_fill,
+ PerlIOBase_eof,
+ PerlIOBase_error,
+ PerlIOBase_clearerr,
+ PerlIOBase_setlinebuf,
+ PerlIOBuf_get_base,
+ PerlIOBuf_bufsiz,
+ PerlIOBuf_get_ptr,
+ PerlIOBuf_get_cnt,
+ PerlIOBuf_set_ptrcnt,
+};
+
+/*--------------------------------------------------------------------------------------*/
+/* Temp layer to hold unread chars when cannot do it any other way */
+
+IV
+PerlIOPending_fill(PerlIO *f)
+{
+ /* Should never happen */
+ PerlIO_flush(f);
+ return 0;
+}
+
+IV
+PerlIOPending_close(PerlIO *f)
+{
+ /* A tad tricky - flush pops us, then we close new top */
+ PerlIO_flush(f);
+ return PerlIO_close(f);
+}
+
+IV
+PerlIOPending_seek(PerlIO *f, Off_t offset, int whence)
+{
+ /* A tad tricky - flush pops us, then we seek new top */
+ PerlIO_flush(f);
+ return PerlIO_seek(f,offset,whence);
+}
+
+
+IV
+PerlIOPending_flush(PerlIO *f)
+{
+ dTHX;
+ PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
+ if (b->buf && b->buf != (STDCHAR *) &b->oneword)
+ {
+ PerlMemShared_free(b->buf);
+ b->buf = NULL;
+ }
+ PerlIO_pop(aTHX_ f);
+ return 0;
+}
+
+void
+PerlIOPending_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt)
+{
+ if (cnt <= 0)
+ {
+ PerlIO_flush(f);
+ }
+ else
+ {
+ PerlIOBuf_set_ptrcnt(f,ptr,cnt);
+ }
+}
+
+IV
+PerlIOPending_pushed(PerlIO *f,const char *mode,SV *arg)
+{
+ IV code = PerlIOBase_pushed(f,mode,arg);
+ PerlIOl *l = PerlIOBase(f);
+ /* Our PerlIO_fast_gets must match what we are pushed on,
+ or sv_gets() etc. get muddled when it changes mid-string
+ when we auto-pop.
+ */
+ l->flags = (l->flags & ~(PERLIO_F_FASTGETS|PERLIO_F_UTF8)) |
+ (PerlIOBase(PerlIONext(f))->flags & (PERLIO_F_FASTGETS|PERLIO_F_UTF8));
+ return code;
+}
+
+SSize_t
+PerlIOPending_read(PerlIO *f, void *vbuf, Size_t count)
+{
+ SSize_t avail = PerlIO_get_cnt(f);
+ SSize_t got = 0;
+ if (count < avail)
+ avail = count;
+ if (avail > 0)
+ got = PerlIOBuf_read(f,vbuf,avail);
+ if (got >= 0 && got < count)
+ {
+ SSize_t more = PerlIO_read(f,((STDCHAR *) vbuf)+got,count-got);
+ if (more >= 0 || got == 0)
+ got += more;
+ }
+ return got;
+}
+
+PerlIO_funcs PerlIO_pending = {
+ "pending",
+ sizeof(PerlIOBuf),
+ PERLIO_K_BUFFERED,
+ PerlIOPending_pushed,
+ PerlIOBase_noop_ok,
+ NULL,
+ NULL,
+ PerlIOBase_fileno,
+ PerlIOPending_read,
+ PerlIOBuf_unread,
+ PerlIOBuf_write,
+ PerlIOPending_seek,
+ PerlIOBuf_tell,
+ PerlIOPending_close,
+ PerlIOPending_flush,
+ PerlIOPending_fill,
+ PerlIOBase_eof,
+ PerlIOBase_error,
+ PerlIOBase_clearerr,
+ PerlIOBase_setlinebuf,
+ PerlIOBuf_get_base,
+ PerlIOBuf_bufsiz,
+ PerlIOBuf_get_ptr,
+ PerlIOBuf_get_cnt,
+ PerlIOPending_set_ptrcnt,
+};
+
+
+
+/*--------------------------------------------------------------------------------------*/
+/* crlf - translation
+ On read translate CR,LF to "\n" we do this by overriding ptr/cnt entries
+ to hand back a line at a time and keeping a record of which nl we "lied" about.
+ On write translate "\n" to CR,LF
+ */
+
+typedef struct
{
- PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
- Off_t posn = b->posn;
- if (b->buf)
- posn += (b->ptr - b->buf);
- return posn;
-}
+ PerlIOBuf base; /* PerlIOBuf stuff */
+ STDCHAR *nl; /* Position of crlf we "lied" about in the buffer */
+} PerlIOCrlf;
IV
-PerlIOBuf_close(PerlIO *f)
+PerlIOCrlf_pushed(PerlIO *f, const char *mode,SV *arg)
{
- IV code = PerlIOBase_close(f);
- PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
- if (b->buf && b->buf != (STDCHAR *) &b->oneword)
- {
- Safefree(b->buf);
- }
- b->buf = NULL;
- b->ptr = b->end = b->buf;
- PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF);
+ IV code;
+ PerlIOBase(f)->flags |= PERLIO_F_CRLF;
+ code = PerlIOBuf_pushed(f,mode,arg);
+#if 0
+ PerlIO_debug("PerlIOCrlf_pushed f=%p %s %s fl=%08"UVxf"\n",
+ f,PerlIOBase(f)->tab->name,(mode) ? mode : "(Null)",
+ PerlIOBase(f)->flags);
+#endif
return code;
}
-void
-PerlIOBuf_setlinebuf(PerlIO *f)
+
+SSize_t
+PerlIOCrlf_unread(PerlIO *f, const void *vbuf, Size_t count)
{
- if (f)
+ PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf);
+ if (c->nl)
{
- PerlIOBase(f)->flags &= ~PERLIO_F_LINEBUF;
+ *(c->nl) = 0xd;
+ c->nl = NULL;
+ }
+ if (!(PerlIOBase(f)->flags & PERLIO_F_CRLF))
+ return PerlIOBuf_unread(f,vbuf,count);
+ else
+ {
+ const STDCHAR *buf = (const STDCHAR *) vbuf+count;
+ PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
+ SSize_t unread = 0;
+ if (PerlIOBase(f)->flags & PERLIO_F_WRBUF)
+ PerlIO_flush(f);
+ if (!b->buf)
+ PerlIO_get_base(f);
+ if (b->buf)
+ {
+ if (!(PerlIOBase(f)->flags & PERLIO_F_RDBUF))
+ {
+ b->end = b->ptr = b->buf + b->bufsiz;
+ PerlIOBase(f)->flags |= PERLIO_F_RDBUF;
+ b->posn -= b->bufsiz;
+ }
+ while (count > 0 && b->ptr > b->buf)
+ {
+ int ch = *--buf;
+ if (ch == '\n')
+ {
+ if (b->ptr - 2 >= b->buf)
+ {
+ *--(b->ptr) = 0xa;
+ *--(b->ptr) = 0xd;
+ unread++;
+ count--;
+ }
+ else
+ {
+ buf++;
+ break;
+ }
+ }
+ else
+ {
+ *--(b->ptr) = ch;
+ unread++;
+ count--;
+ }
+ }
+ }
+ return unread;
}
-}
-
-STDCHAR *
-PerlIOBuf_get_ptr(PerlIO *f)
-{
- PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
- if (!b->buf)
- PerlIO_get_base(f);
- return b->ptr;
}
SSize_t
-PerlIOBuf_get_cnt(PerlIO *f)
+PerlIOCrlf_get_cnt(PerlIO *f)
{
PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
if (!b->buf)
PerlIO_get_base(f);
if (PerlIOBase(f)->flags & PERLIO_F_RDBUF)
- return (b->end - b->ptr);
+ {
+ PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf);
+ if ((PerlIOBase(f)->flags & PERLIO_F_CRLF) && !c->nl)
+ {
+ STDCHAR *nl = b->ptr;
+ scan:
+ while (nl < b->end && *nl != 0xd)
+ nl++;
+ if (nl < b->end && *nl == 0xd)
+ {
+ test:
+ if (nl+1 < b->end)
+ {
+ if (nl[1] == 0xa)
+ {
+ *nl = '\n';
+ c->nl = nl;
+ }
+ else
+ {
+ /* Not CR,LF but just CR */
+ nl++;
+ goto scan;
+ }
+ }
+ else
+ {
+ /* Blast - found CR as last char in buffer */
+ if (b->ptr < nl)
+ {
+ /* They may not care, defer work as long as possible */
+ return (nl - b->ptr);
+ }
+ else
+ {
+ int code;
+ dTHX;
+ b->ptr++; /* say we have read it as far as flush() is concerned */
+ b->buf++; /* Leave space an front of buffer */
+ b->bufsiz--; /* Buffer is thus smaller */
+ code = PerlIO_fill(f); /* Fetch some more */
+ b->bufsiz++; /* Restore size for next time */
+ b->buf--; /* Point at space */
+ b->ptr = nl = b->buf; /* Which is what we hand off */
+ b->posn--; /* Buffer starts here */
+ *nl = 0xd; /* Fill in the CR */
+ if (code == 0)
+ goto test; /* fill() call worked */
+ /* CR at EOF - just fall through */
+ }
+ }
+ }
+ }
+ return (((c->nl) ? (c->nl+1) : b->end) - b->ptr);
+ }
return 0;
}
-STDCHAR *
-PerlIOBuf_get_base(PerlIO *f)
+void
+PerlIOCrlf_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt)
{
- PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
+ PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
+ PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf);
+ IV flags = PerlIOBase(f)->flags;
if (!b->buf)
+ PerlIO_get_base(f);
+ if (!ptr)
{
- if (!b->bufsiz)
- b->bufsiz = 4096;
- New('B',b->buf,b->bufsiz,STDCHAR);
- if (!b->buf)
+ if (c->nl)
+ ptr = c->nl+1;
+ else
{
- b->buf = (STDCHAR *)&b->oneword;
- b->bufsiz = sizeof(b->oneword);
+ ptr = b->end;
+ if ((flags & PERLIO_F_CRLF) && ptr > b->buf && ptr[-1] == 0xd)
+ ptr--;
}
- b->ptr = b->buf;
- b->end = b->ptr;
+ ptr -= cnt;
}
- return b->buf;
+ else
+ {
+ /* Test code - delete when it works ... */
+ STDCHAR *chk;
+ if (c->nl)
+ chk = c->nl+1;
+ else
+ {
+ chk = b->end;
+ if ((flags & PERLIO_F_CRLF) && chk > b->buf && chk[-1] == 0xd)
+ chk--;
+ }
+ chk -= cnt;
+
+ if (ptr != chk)
+ {
+ dTHX;
+ Perl_croak(aTHX_ "ptr wrong %p != %p fl=%08"UVxf" nl=%p e=%p for %d",
+ ptr, chk, flags, c->nl, b->end, cnt);
+ }
+ }
+ if (c->nl)
+ {
+ if (ptr > c->nl)
+ {
+ /* They have taken what we lied about */
+ *(c->nl) = 0xd;
+ c->nl = NULL;
+ ptr++;
+ }
+ }
+ b->ptr = ptr;
+ PerlIOBase(f)->flags |= PERLIO_F_RDBUF;
}
-Size_t
-PerlIOBuf_bufsiz(PerlIO *f)
+SSize_t
+PerlIOCrlf_write(PerlIO *f, const void *vbuf, Size_t count)
{
- PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
- if (!b->buf)
- PerlIO_get_base(f);
- return (b->end - b->buf);
+ if (!(PerlIOBase(f)->flags & PERLIO_F_CRLF))
+ return PerlIOBuf_write(f,vbuf,count);
+ else
+ {
+ PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
+ const STDCHAR *buf = (const STDCHAR *) vbuf;
+ const STDCHAR *ebuf = buf+count;
+ if (!b->buf)
+ PerlIO_get_base(f);
+ if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE))
+ return 0;
+ while (buf < ebuf)
+ {
+ STDCHAR *eptr = b->buf+b->bufsiz;
+ PerlIOBase(f)->flags |= PERLIO_F_WRBUF;
+ while (buf < ebuf && b->ptr < eptr)
+ {
+ if (*buf == '\n')
+ {
+ if ((b->ptr + 2) > eptr)
+ {
+ /* Not room for both */
+ PerlIO_flush(f);
+ break;
+ }
+ else
+ {
+ *(b->ptr)++ = 0xd; /* CR */
+ *(b->ptr)++ = 0xa; /* LF */
+ buf++;
+ if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF)
+ {
+ PerlIO_flush(f);
+ break;
+ }
+ }
+ }
+ else
+ {
+ int ch = *buf++;
+ *(b->ptr)++ = ch;
+ }
+ if (b->ptr >= eptr)
+ {
+ PerlIO_flush(f);
+ break;
+ }
+ }
+ }
+ if (PerlIOBase(f)->flags & PERLIO_F_UNBUF)
+ PerlIO_flush(f);
+ return (buf - (STDCHAR *) vbuf);
+ }
}
-void
-PerlIOBuf_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt)
+IV
+PerlIOCrlf_flush(PerlIO *f)
{
- PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
- if (!b->buf)
- PerlIO_get_base(f);
- b->ptr = ptr;
- if (PerlIO_get_cnt(f) != cnt || b->ptr < b->buf)
+ PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf);
+ if (c->nl)
{
- dTHX;
- assert(PerlIO_get_cnt(f) == cnt);
- assert(b->ptr >= b->buf);
+ *(c->nl) = 0xd;
+ c->nl = NULL;
}
- PerlIOBase(f)->flags |= PERLIO_F_RDBUF;
+ return PerlIOBuf_flush(f);
}
-PerlIO_funcs PerlIO_perlio = {
- "perlio",
- sizeof(PerlIOBuf),
- 0,
- PerlIOBase_fileno,
- PerlIOBuf_fdopen,
- PerlIOBuf_open,
- PerlIOBuf_reopen,
- PerlIOBase_pushed,
- PerlIOBase_noop_ok,
- PerlIOBuf_read,
- PerlIOBuf_unread,
- PerlIOBuf_write,
- PerlIOBuf_seek,
- PerlIOBuf_tell,
- PerlIOBuf_close,
- PerlIOBuf_flush,
- PerlIOBuf_fill,
- PerlIOBase_eof,
- PerlIOBase_error,
- PerlIOBase_clearerr,
- PerlIOBuf_setlinebuf,
- PerlIOBuf_get_base,
- PerlIOBuf_bufsiz,
- PerlIOBuf_get_ptr,
- PerlIOBuf_get_cnt,
- PerlIOBuf_set_ptrcnt,
-};
-
-/*--------------------------------------------------------------------------------------*/
-/* crlf - translation currently just a copy of perlio to prove
- that extra buffering which real one will do is not an issue.
- */
-
PerlIO_funcs PerlIO_crlf = {
"crlf",
- sizeof(PerlIOBuf),
- 0,
- PerlIOBase_fileno,
- PerlIOBuf_fdopen,
+ sizeof(PerlIOCrlf),
+ PERLIO_K_BUFFERED|PERLIO_K_CANCRLF,
+ PerlIOCrlf_pushed,
+ PerlIOBase_noop_ok, /* popped */
PerlIOBuf_open,
- PerlIOBuf_reopen,
- PerlIOBase_pushed,
- PerlIOBase_noop_ok,
- PerlIOBuf_read,
- PerlIOBuf_unread,
- PerlIOBuf_write,
+ NULL,
+ PerlIOBase_fileno,
+ PerlIOBuf_read, /* generic read works with ptr/cnt lies ... */
+ PerlIOCrlf_unread, /* Put CR,LF in buffer for each '\n' */
+ PerlIOCrlf_write, /* Put CR,LF in buffer for each '\n' */
PerlIOBuf_seek,
PerlIOBuf_tell,
PerlIOBuf_close,
- PerlIOBuf_flush,
+ PerlIOCrlf_flush,
PerlIOBuf_fill,
PerlIOBase_eof,
PerlIOBase_error,
PerlIOBase_clearerr,
- PerlIOBuf_setlinebuf,
+ PerlIOBase_setlinebuf,
PerlIOBuf_get_base,
PerlIOBuf_bufsiz,
PerlIOBuf_get_ptr,
- PerlIOBuf_get_cnt,
- PerlIOBuf_set_ptrcnt,
+ PerlIOCrlf_get_cnt,
+ PerlIOCrlf_set_ptrcnt,
};
#ifdef HAS_MMAP
Mmap_t mptr; /* Mapped address */
Size_t len; /* mapped length */
STDCHAR *bbuf; /* malloced buffer if map fails */
-
} PerlIOMmap;
static size_t page_size = 0;
}
posn = (b->posn / page_size) * page_size;
len = st.st_size - posn;
- m->mptr = mmap(NULL, len, PROT_READ, MAP_PRIVATE, fd, posn);
+ m->mptr = mmap(NULL, len, PROT_READ, MAP_SHARED, fd, posn);
if (m->mptr && m->mptr != (Mmap_t) -1)
{
-#if defined(HAS_MADVISE) && defined(MADV_SEQUENTIAL)
+#if 0 && defined(HAS_MADVISE) && defined(MADV_SEQUENTIAL)
madvise(m->mptr, len, MADV_SEQUENTIAL);
#endif
+#if 0 && defined(HAS_MADVISE) && defined(MADV_WILLNEED)
+ madvise(m->mptr, len, MADV_WILLNEED);
+#endif
PerlIOBase(f)->flags = (flags & ~PERLIO_F_EOF) | PERLIO_F_RDBUF;
b->end = ((STDCHAR *)m->mptr) + len;
b->buf = ((STDCHAR *)m->mptr) + (b->posn - posn);
m->bbuf = b->buf;
}
}
- return PerlIOBuf_unread(f,vbuf,count);
+return PerlIOBuf_unread(f,vbuf,count);
}
SSize_t
PerlIO_funcs PerlIO_mmap = {
"mmap",
sizeof(PerlIOMmap),
- 0,
- PerlIOBase_fileno,
- PerlIOBuf_fdopen,
- PerlIOBuf_open,
- PerlIOBuf_reopen,
- PerlIOBase_pushed,
+ PERLIO_K_BUFFERED,
+ PerlIOBuf_pushed,
PerlIOBase_noop_ok,
+ PerlIOBuf_open,
+ NULL,
+ PerlIOBase_fileno,
PerlIOBuf_read,
PerlIOMmap_unread,
PerlIOMmap_write,
PerlIOBase_eof,
PerlIOBase_error,
PerlIOBase_clearerr,
- PerlIOBuf_setlinebuf,
+ PerlIOBase_setlinebuf,
PerlIOMmap_get_base,
PerlIOBuf_bufsiz,
PerlIOBuf_get_ptr,
{
if (!_perlio)
{
+#ifndef WIN32
atexit(&PerlIO_cleanup);
+#endif
}
}
PerlIO_stdin(void)
{
if (!_perlio)
- PerlIO_stdstreams();
+ {
+ dTHX;
+ PerlIO_stdstreams(aTHX);
+ }
return &_perlio[1];
}
PerlIO_stdout(void)
{
if (!_perlio)
- PerlIO_stdstreams();
+ {
+ dTHX;
+ PerlIO_stdstreams(aTHX);
+ }
return &_perlio[2];
}
PerlIO_stderr(void)
{
if (!_perlio)
- PerlIO_stdstreams();
+ {
+ dTHX;
+ PerlIO_stdstreams(aTHX);
+ }
return &_perlio[3];
}
SV *sv = newSVpvn("",0);
char *s;
STRLEN len;
+ SSize_t wrote;
#ifdef NEED_VA_COPY
va_list apc;
Perl_va_copy(ap, apc);
sv_vcatpvf(sv, fmt, &ap);
#endif
s = SvPV(sv,len);
- return PerlIO_write(f,s,len);
+ wrote = PerlIO_write(f,s,len);
+ SvREFCNT_dec(sv);
+ return wrote;
}
#undef PerlIO_printf
PerlIO *
PerlIO_tmpfile(void)
{
- dTHX;
/* I have no idea how portable mkstemp() is ... */
+#if defined(WIN32) || !defined(HAVE_MKSTEMP)
+ dTHX;
+ PerlIO *f = NULL;
+ FILE *stdio = PerlSIO_tmpfile();
+ if (stdio)
+ {
+ PerlIOStdio *s = PerlIOSelf(PerlIO_push(aTHX_ (f = PerlIO_allocate(aTHX)),&PerlIO_stdio,"w+",Nullsv),PerlIOStdio);
+ s->stdio = stdio;
+ }
+ return f;
+#else
+ dTHX;
SV *sv = newSVpv("/tmp/PerlIO_XXXXXX",0);
int fd = mkstemp(SvPVX(sv));
PerlIO *f = NULL;
SvREFCNT_dec(sv);
}
return f;
+#endif
}
#undef HAS_FSETPOS
#ifndef HAS_FSETPOS
#undef PerlIO_setpos
int
-PerlIO_setpos(PerlIO *f, const Fpos_t *pos)
+PerlIO_setpos(PerlIO *f, SV *pos)
{
- return PerlIO_seek(f,*pos,0);
+ dTHX;
+ if (SvOK(pos))
+ {
+ STRLEN len;
+ Off_t *posn = (Off_t *) SvPV(pos,len);
+ if (f && len == sizeof(Off_t))
+ return PerlIO_seek(f,*posn,SEEK_SET);
+ }
+ SETERRNO(EINVAL,SS$_IVCHAN);
+ return -1;
}
#else
-#ifndef PERLIO_IS_STDIO
#undef PerlIO_setpos
int
-PerlIO_setpos(PerlIO *f, const Fpos_t *pos)
+PerlIO_setpos(PerlIO *f, SV *pos)
{
+ dTHX;
+ if (SvOK(pos))
+ {
+ STRLEN len;
+ Fpos_t *fpos = (Fpos_t *) SvPV(pos,len);
+ if (f && len == sizeof(Fpos_t))
+ {
#if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64)
- return fsetpos64(f, pos);
+ return fsetpos64(f, fpos);
#else
- return fsetpos(f, pos);
+ return fsetpos(f, fpos);
#endif
+ }
+ }
+ SETERRNO(EINVAL,SS$_IVCHAN);
+ return -1;
}
#endif
-#endif
#ifndef HAS_FGETPOS
#undef PerlIO_getpos
int
-PerlIO_getpos(PerlIO *f, Fpos_t *pos)
+PerlIO_getpos(PerlIO *f, SV *pos)
{
- *pos = PerlIO_tell(f);
- return *pos == -1 ? -1 : 0;
+ dTHX;
+ Off_t posn = PerlIO_tell(f);
+ sv_setpvn(pos,(char *)&posn,sizeof(posn));
+ return (posn == (Off_t)-1) ? -1 : 0;
}
#else
-#ifndef PERLIO_IS_STDIO
#undef PerlIO_getpos
int
-PerlIO_getpos(PerlIO *f, Fpos_t *pos)
+PerlIO_getpos(PerlIO *f, SV *pos)
{
+ dTHX;
+ Fpos_t fpos;
+ int code;
#if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64)
- return fgetpos64(f, pos);
+ code = fgetpos64(f, &fpos);
#else
- return fgetpos(f, pos);
+ code = fgetpos(f, &fpos);
#endif
+ sv_setpvn(pos,(char *)&fpos,sizeof(fpos));
+ return code;
}
#endif
-#endif
#if (defined(PERLIO_IS_STDIO) || !defined(USE_SFIO)) && !defined(HAS_VPRINTF)
}
#endif
-#endif /* !PERL_IMPLICIT_SYS */