-/* perlio.c
- *
- * Copyright (c) 1996-2000, 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.
- *
+/*
+ * perlio.c 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.
+ */
+
+/*
+ * If we have ActivePerl-like PERL_IMPLICIT_SYS then we need a dTHX to get
+ * at the dispatch tables, even when we do not need it for other reasons.
+ * Invent a dSYS macro to abstract this out
*/
+#ifdef PERL_IMPLICIT_SYS
+#define dSYS dTHX
+#else
+#define dSYS dNOOP
+#endif
#define VOIDUSED 1
#ifdef PERL_MICRO
#define PERLIO_NOT_STDIO 0
#if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO)
-/* #define PerlIO FILE */
+/*
+ * #define PerlIO FILE
+ */
#endif
/*
* This file provides those parts of PerlIO abstraction
#define PERL_IN_PERLIO_C
#include "perl.h"
-#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;
-}
+#include "XSUB.h"
int
perlsio_binmode(FILE *fp, int iotype, int mode)
{
-/* This used to be contents of do_binmode in doio.c */
+ /*
+ * 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;
+ ((FILE *) fp)->_flag |= _IOBIN;
else
- ((FILE*)fp)->_flag &= ~ _IOBIN;
+ ((FILE *) fp)->_flag &= ~_IOBIN;
return 1;
}
return 0;
# else
+ dTHX;
+#ifdef NETWARE
+ if (PerlLIO_setmode(fp, mode) != -1) {
+#else
if (PerlLIO_setmode(fileno(fp), mode) != -1) {
+#endif
# 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
+ /*
+ * 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);
+ fseek(fp, 0L, 0);
if (mode & O_BINARY)
fp->flags |= _F_BIN;
else
- fp->flags &= ~ _F_BIN;
+ fp->flags &= ~_F_BIN;
# endif
return 1;
}
#endif
}
+#ifndef O_ACCMODE
+#define O_ACCMODE 3 /* Assume traditional implementation */
+#endif
+
+int
+PerlIO_intmode2str(int rawmode, char *mode, int *writing)
+{
+ int result = rawmode & O_ACCMODE;
+ int ix = 0;
+ int ptype;
+ switch (result) {
+ case O_RDONLY:
+ ptype = IoTYPE_RDONLY;
+ break;
+ case O_WRONLY:
+ ptype = IoTYPE_WRONLY;
+ break;
+ case O_RDWR:
+ default:
+ ptype = IoTYPE_RDWR;
+ break;
+ }
+ if (writing)
+ *writing = (result != O_RDONLY);
+
+ if (result == O_RDONLY) {
+ mode[ix++] = 'r';
+ }
+#ifdef O_APPEND
+ else if (rawmode & O_APPEND) {
+ mode[ix++] = 'a';
+ if (result != O_WRONLY)
+ mode[ix++] = '+';
+ }
+#endif
+ else {
+ if (result == O_WRONLY)
+ mode[ix++] = 'w';
+ else {
+ mode[ix++] = 'r';
+ mode[ix++] = '+';
+ }
+ }
+ if (rawmode & O_BINARY)
+ mode[ix++] = 'b';
+ mode[ix] = '\0';
+ return ptype;
+}
+
+#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;
+}
+
+void
+PerlIO_destruct(pTHX)
+{
+}
+
int
PerlIO_binmode(pTHX_ PerlIO *fp, int iotype, int mode, const char *names)
{
- return perlsio_binmode(fp,iotype,mode);
+#ifdef USE_SFIO
+ return 1;
+#else
+ return perlsio_binmode(fp, iotype, mode);
+#endif
+}
+
+PerlIO *
+PerlIO_fdupopen(pTHX_ PerlIO *f, CLONE_PARAMS *param)
+{
+ if (f) {
+ int fd = PerlLIO_dup(PerlIO_fileno(f));
+ if (fd >= 0) {
+ char mode[8];
+ int omode = fcntl(fd, F_GETFL);
+ PerlIO_intmode2str(omode,mode,NULL);
+ /* the r+ is a hack */
+ return PerlIO_fdopen(fd, mode);
+ }
+ return NULL;
+ }
+ else {
+ SETERRNO(EBADF, SS$_IVCHAN);
+ }
+ return NULL;
+}
+
+
+/*
+ * 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;
+}
+
+XS(XS_PerlIO__Layer__find)
+{
+ dXSARGS;
+ if (items < 2)
+ Perl_croak(aTHX_ "Usage class->find(name[,load])");
+ else {
+ char *name = SvPV_nolen(ST(1));
+ ST(0) = (strEQ(name, "crlf")
+ || strEQ(name, "raw")) ? &PL_sv_yes : &PL_sv_undef;
+ XSRETURN(1);
+ }
+}
+
+
+void
+Perl_boot_core_PerlIO(pTHX)
+{
+ newXS("PerlIO::Layer::find", XS_PerlIO__Layer__find, __FILE__);
}
#endif
void
PerlIO_init(void)
{
- /* Does nothing (yet) except force this file to be included
- in perl binary. That allows this file to force inclusion
- of other functions that may be required by loadable
- extensions e.g. for FileHandle::tmpfile
- */
+ /*
+ * Does nothing (yet) except force this file to be included in perl
+ * binary. That allows this file to force inclusion of other functions
+ * that may be required by loadable extensions e.g. for
+ * FileHandle::tmpfile
+ */
}
#undef PerlIO_tmpfile
PerlIO *
PerlIO_tmpfile(void)
{
- return tmpfile();
+ return tmpfile();
}
-#else /* PERLIO_IS_STDIO */
+#else /* PERLIO_IS_STDIO */
#ifdef USE_SFIO
#undef HAS_FSETPOS
#undef HAS_FGETPOS
-/* This section is just to make sure these functions
- get pulled in from libsfio.a
-*/
+/*
+ * This section is just to make sure these functions get pulled in from
+ * libsfio.a
+ */
#undef PerlIO_tmpfile
PerlIO *
PerlIO_tmpfile(void)
{
- return sftmp(0);
+ return sftmp(0);
}
void
PerlIO_init(void)
{
- /* Force this file to be included in perl binary. Which allows
- * this file to force inclusion of other functions that may be
- * required by loadable extensions e.g. for FileHandle::tmpfile
- */
+ /*
+ * Force this file to be included in perl binary. Which allows this
+ * file to force inclusion of other functions that may be required by
+ * loadable extensions e.g. for FileHandle::tmpfile
+ */
+
+ /*
+ * Hack sfio does its own 'autoflush' on stdout in common cases. Flush
+ * results in a lot of lseek()s to regular files and lot of small
+ * writes to pipes.
+ */
+ sfset(sfstdout, SF_SHARE, 0);
+}
+
+PerlIO *
+PerlIO_importFILE(FILE *stdio, int fl)
+{
+ int fd = fileno(stdio);
+ PerlIO *r = PerlIO_fdopen(fd, "r+");
+ return r;
+}
- /* Hack
- * sfio does its own 'autoflush' on stdout in common cases.
- * Flush results in a lot of lseek()s to regular files and
- * lot of small writes to pipes.
- */
- sfset(sfstdout,SF_SHARE,0);
+FILE *
+PerlIO_findFILE(PerlIO *pio)
+{
+ int fd = PerlIO_fileno(pio);
+ FILE *f = fdopen(fd, "r+");
+ PerlIO_flush(pio);
+ if (!f && errno == EINVAL)
+ f = fdopen(fd, "w");
+ if (!f && errno == EINVAL)
+ f = fdopen(fd, "r");
+ return f;
}
-#else /* USE_SFIO */
+
+#else /* USE_SFIO */
/*======================================================================================*/
-/* Implement all the PerlIO interface ourselves.
+/*
+ * Implement all the PerlIO interface ourselves.
*/
#include "perliol.h"
-/* We _MUST_ have <unistd.h> if we are using lseek() and may have large files */
+/*
+ * We _MUST_ have <unistd.h> if we are using lseek() and may have large
+ * files
+ */
#ifdef I_UNISTD
#include <unistd.h>
#endif
#include <sys/mman.h>
#endif
-#include "XSUB.h"
-void PerlIO_debug(const char *fmt,...) __attribute__((format(__printf__,1,2)));
+void PerlIO_debug(const char *fmt, ...)
+ __attribute__ ((format(__printf__, 1, 2)));
void
-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 (s && *s)
- dbg = PerlLIO_open3(s,O_WRONLY|O_CREAT|O_APPEND,0666);
- else
- dbg = -1;
- }
- if (dbg > 0)
- {
- dTHX;
- SV *sv = newSVpvn("",0);
- char *s;
- STRLEN len;
- s = CopFILE(PL_curcop);
- if (!s)
- s = "(none)";
- Perl_sv_catpvf(aTHX_ sv, "%s:%"IVdf" ", s, (IV)CopLINE(PL_curcop));
- Perl_sv_vcatpvf(aTHX_ sv, fmt, &ap);
-
- s = SvPV(sv,len);
- PerlLIO_write(dbg,s,len);
- SvREFCNT_dec(sv);
- }
- va_end(ap);
+PerlIO_debug(const char *fmt, ...)
+{
+ static int dbg = 0;
+ va_list ap;
+ dSYS;
+ va_start(ap, fmt);
+ if (!dbg) {
+ char *s = PerlEnv_getenv("PERLIO_DEBUG");
+ if (s && *s)
+ dbg = PerlLIO_open3(s, O_WRONLY | O_CREAT | O_APPEND, 0666);
+ else
+ dbg = -1;
+ }
+ if (dbg > 0) {
+ dTHX;
+#ifdef USE_ITHREADS
+ /* Use fixed buffer as sv_catpvf etc. needs SVs */
+ char buffer[1024];
+ char *s;
+ STRLEN len;
+ s = CopFILE(PL_curcop);
+ if (!s)
+ s = "(none)";
+ sprintf(buffer, "%s:%" IVdf " ", s, (IV) CopLINE(PL_curcop));
+ len = strlen(buffer);
+ vsprintf(buffer+len, fmt, ap);
+ PerlLIO_write(dbg, buffer, strlen(buffer));
+#else
+ SV *sv = newSVpvn("", 0);
+ char *s;
+ STRLEN len;
+ s = CopFILE(PL_curcop);
+ if (!s)
+ s = "(none)";
+ Perl_sv_catpvf(aTHX_ sv, "%s:%" IVdf " ", s,
+ (IV) CopLINE(PL_curcop));
+ Perl_sv_vcatpvf(aTHX_ sv, fmt, &ap);
+
+ s = SvPV(sv, len);
+ PerlLIO_write(dbg, s, len);
+ SvREFCNT_dec(sv);
+#endif
+ }
+ va_end(ap);
}
/*--------------------------------------------------------------------------------------*/
-/* Inner level routines */
+/*
+ * Inner level routines
+ */
-/* Table of pointers to the PerlIO structs (malloc'ed) */
-PerlIO *_perlio = NULL;
+/*
+ * Table of pointers to the PerlIO structs (malloc'ed)
+ */
#define PERLIO_TABLE_SIZE 64
PerlIO *
PerlIO_allocate(pTHX)
{
- /* Find a free slot in the table, allocating new table as necessary */
- PerlIO **last;
- PerlIO *f;
- last = &_perlio;
- while ((f = *last))
- {
- int i;
- last = (PerlIO **)(f);
- for (i=1; i < PERLIO_TABLE_SIZE; i++)
- {
- if (!*++f)
- {
- return f;
- }
- }
- }
- f = PerlMemShared_calloc(PERLIO_TABLE_SIZE,sizeof(PerlIO));
- if (!f)
- {
- return NULL;
- }
- *last = f;
- return f+1;
+ /*
+ * Find a free slot in the table, allocating new table as necessary
+ */
+ PerlIO **last;
+ PerlIO *f;
+ last = &PL_perlio;
+ while ((f = *last)) {
+ int i;
+ last = (PerlIO **) (f);
+ for (i = 1; i < PERLIO_TABLE_SIZE; i++) {
+ if (!*++f) {
+ return f;
+ }
+ }
+ }
+ Newz('I',f,PERLIO_TABLE_SIZE,PerlIO);
+ if (!f) {
+ return NULL;
+ }
+ *last = f;
+ return f + 1;
+}
+
+#undef PerlIO_fdupopen
+PerlIO *
+PerlIO_fdupopen(pTHX_ PerlIO *f, CLONE_PARAMS *param)
+{
+ 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);
+ return new;
+ }
+ else {
+ SETERRNO(EBADF, SS$_IVCHAN);
+ return NULL;
+ }
}
void
PerlIO_cleantable(pTHX_ PerlIO **tablep)
{
- PerlIO *table = *tablep;
- if (table)
- {
- int i;
- 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 *table = *tablep;
+ if (table) {
+ int i;
+ PerlIO_cleantable(aTHX_(PerlIO **) & (table[0]));
+ for (i = PERLIO_TABLE_SIZE - 1; i > 0; i--) {
+ PerlIO *f = table + i;
+ if (*f) {
+ PerlIO_close(f);
+ }
+ }
+ Safefree(table);
+ *tablep = NULL;
}
- PerlMemShared_free(table);
- *tablep = NULL;
- }
}
-HV *PerlIO_layer_hv;
-AV *PerlIO_layer_av;
-void
-PerlIO_cleanup()
+PerlIO_list_t *
+PerlIO_list_alloc(pTHX)
{
- dTHX;
- PerlIO_cleantable(aTHX_ &_perlio);
+ PerlIO_list_t *list;
+ Newz('L', list, 1, PerlIO_list_t);
+ list->refcnt = 1;
+ return list;
}
void
-PerlIO_pop(PerlIO *f)
-{
- dTHX;
- PerlIOl *l = *f;
- if (l)
- {
- PerlIO_debug("PerlIO_pop f=%p %s\n",f,l->tab->name);
- (*l->tab->Popped)(f);
- *f = l->next;
- PerlMemShared_free(l);
- }
+PerlIO_list_free(pTHX_ PerlIO_list_t *list)
+{
+ if (list) {
+ if (--list->refcnt == 0) {
+ if (list->array) {
+ IV i;
+ for (i = 0; i < list->cur; i++) {
+ if (list->array[i].arg)
+ SvREFCNT_dec(list->array[i].arg);
+ }
+ Safefree(list->array);
+ }
+ Safefree(list);
+ }
+ }
}
-/*--------------------------------------------------------------------------------------*/
-/* XS Interface for perl code */
-
-XS(XS_perlio_import)
+void
+PerlIO_list_push(pTHX_ PerlIO_list_t *list, PerlIO_funcs *funcs, SV *arg)
{
- dXSARGS;
- GV *gv = CvGV(cv);
- char *s = GvNAME(gv);
- STRLEN l = GvNAMELEN(gv);
- PerlIO_debug("%.*s\n",(int) l,s);
- XSRETURN_EMPTY;
+ PerlIO_pair_t *p;
+ if (list->cur >= list->len) {
+ list->len += 8;
+ if (list->array)
+ Renew(list->array, list->len, PerlIO_pair_t);
+ else
+ New('l', list->array, list->len, PerlIO_pair_t);
+ }
+ p = &(list->array[list->cur++]);
+ p->funcs = funcs;
+ if ((p->arg = arg)) {
+ SvREFCNT_inc(arg);
+ }
}
-XS(XS_perlio_unimport)
+PerlIO_list_t *
+PerlIO_clone_list(pTHX_ PerlIO_list_t *proto, CLONE_PARAMS *param)
{
- dXSARGS;
- GV *gv = CvGV(cv);
- char *s = GvNAME(gv);
- STRLEN l = GvNAMELEN(gv);
- PerlIO_debug("%.*s\n",(int) l,s);
- XSRETURN_EMPTY;
+ 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 = sv_dup(proto->array[i].arg,param);
+ PerlIO_list_push(aTHX_ list, proto->array[i].funcs, arg);
+ }
+ return list;
}
-SV *
-PerlIO_find_layer(const char *name, STRLEN len)
+void
+PerlIO_clone(pTHX_ PerlInterpreter *proto, CLONE_PARAMS *param)
+{
+ PerlIO **table = &proto->Iperlio;
+ PerlIO *f;
+ PL_perlio = NULL;
+ 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 */
+ while ((f = *table)) {
+ int i;
+ table = (PerlIO **) (f++);
+ for (i = 1; i < PERLIO_TABLE_SIZE; i++) {
+ if (*f) {
+ PerlIO_fdupopen(aTHX_ f, param);
+ }
+ f++;
+ }
+ }
+}
+
+void
+PerlIO_cleanup(pTHX)
{
- dTHX;
- SV **svp;
- SV *sv;
- if (len <= 0)
- len = strlen(name);
- svp = hv_fetch(PerlIO_layer_hv,name,len,0);
- if (svp && (sv = *svp) && SvROK(sv))
- return *svp;
- return NULL;
+ PerlIO_cleantable(aTHX_ &PL_perlio);
+}
+
+void
+PerlIO_destruct(pTHX)
+{
+ PerlIO **table = &PL_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++;
+ }
+ }
+ PerlIO_list_free(aTHX_ PL_known_layers);
+ PL_known_layers = NULL;
+ PerlIO_list_free(aTHX_ PL_def_layerlist);
+ PL_def_layerlist = NULL;
+}
+
+void
+PerlIO_pop(pTHX_ PerlIO *f)
+{
+ PerlIOl *l = *f;
+ if (l) {
+ PerlIO_debug("PerlIO_pop f=%p %s\n", f, l->tab->name);
+ if (l->tab->Popped) {
+ /*
+ * If popped returns non-zero do not free its layer structure
+ * it has either done so itself, or it is shared and still in
+ * use
+ */
+ if ((*l->tab->Popped) (f) != 0)
+ return;
+ }
+ *f = l->next;;
+ Safefree(l);
+ }
+}
+
+/*--------------------------------------------------------------------------------------*/
+/*
+ * XS Interface for perl code
+ */
+
+PerlIO_funcs *
+PerlIO_find_layer(pTHX_ const char *name, STRLEN len, int load)
+{
+ IV i;
+ if ((SSize_t) len <= 0)
+ len = strlen(name);
+ for (i = 0; i < PL_known_layers->cur; i++) {
+ PerlIO_funcs *f = PL_known_layers->array[i].funcs;
+ if (memEQ(f->name, name, len)) {
+ PerlIO_debug("%.*s => %p\n", (int) len, name, f);
+ return f;
+ }
+ }
+ if (load && PL_subname && PL_def_layerlist
+ && PL_def_layerlist->cur >= 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;
+ return PerlIO_find_layer(aTHX_ name, len, 0);
+ }
+ PerlIO_debug("Cannot find %.*s\n", (int) len, name);
+ return NULL;
}
+#ifdef USE_ATTRIBUTES_FOR_PERLIO
static int
perlio_mg_set(pTHX_ SV *sv, MAGIC *mg)
{
- if (SvROK(sv))
- {
- IO *io = GvIOn((GV *)SvRV(sv));
- PerlIO *ifp = IoIFP(io);
- PerlIO *ofp = IoOFP(io);
- AV *av = (AV *) mg->mg_obj;
- Perl_warn(aTHX_ "set %"SVf" %p %p %p",sv,io,ifp,ofp);
- }
- return 0;
+ if (SvROK(sv)) {
+ IO *io = GvIOn((GV *) SvRV(sv));
+ PerlIO *ifp = IoIFP(io);
+ PerlIO *ofp = IoOFP(io);
+ Perl_warn(aTHX_ "set %" SVf " %p %p %p", sv, io, ifp, ofp);
+ }
+ return 0;
}
static int
perlio_mg_get(pTHX_ SV *sv, MAGIC *mg)
{
- if (SvROK(sv))
- {
- IO *io = GvIOn((GV *)SvRV(sv));
- PerlIO *ifp = IoIFP(io);
- PerlIO *ofp = IoOFP(io);
- AV *av = (AV *) mg->mg_obj;
- Perl_warn(aTHX_ "get %"SVf" %p %p %p",sv,io,ifp,ofp);
- }
- return 0;
+ if (SvROK(sv)) {
+ IO *io = GvIOn((GV *) SvRV(sv));
+ PerlIO *ifp = IoIFP(io);
+ PerlIO *ofp = IoOFP(io);
+ 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 %"SVf,sv);
- return 0;
+ Perl_warn(aTHX_ "clear %" SVf, sv);
+ return 0;
}
static int
perlio_mg_free(pTHX_ SV *sv, MAGIC *mg)
{
- Perl_warn(aTHX_ "free %"SVf,sv);
- return 0;
+ Perl_warn(aTHX_ "free %" SVf, sv);
+ return 0;
}
MGVTBL perlio_vtab = {
- perlio_mg_get,
- perlio_mg_set,
- NULL, /* len */
- NULL,
- perlio_mg_free
+ perlio_mg_get,
+ perlio_mg_set,
+ NULL, /* len */
+ perlio_mg_clear,
+ perlio_mg_free
};
XS(XS_io_MODIFY_SCALAR_ATTRIBUTES)
{
- dXSARGS;
- SV *sv = SvRV(ST(1));
- AV *av = newAV();
- MAGIC *mg;
- int count = 0;
- int i;
- sv_magic(sv, (SV *)av, '~', NULL, 0);
- SvRMAGICAL_off(sv);
- mg = mg_find(sv,'~');
- mg->mg_virtual = &perlio_vtab;
- mg_magical(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);
- if (layer)
- {
- av_push(av,SvREFCNT_inc(layer));
- }
- else
- {
- ST(count) = ST(i);
- count++;
- }
- }
- SvREFCNT_dec(av);
- XSRETURN(count);
+ dXSARGS;
+ SV *sv = SvRV(ST(1));
+ AV *av = newAV();
+ MAGIC *mg;
+ int count = 0;
+ int i;
+ sv_magic(sv, (SV *) av, PERL_MAGIC_ext, NULL, 0);
+ SvRMAGICAL_off(sv);
+ mg = mg_find(sv, PERL_MAGIC_ext);
+ mg->mg_virtual = &perlio_vtab;
+ mg_magical(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(aTHX_ name, len, 1);
+ if (layer) {
+ av_push(av, SvREFCNT_inc(layer));
+ }
+ else {
+ ST(count) = ST(i);
+ count++;
+ }
+ }
+ SvREFCNT_dec(av);
+ XSRETURN(count);
+}
+
+#endif /* USE_ATTIBUTES_FOR_PERLIO */
+
+SV *
+PerlIO_tab_sv(pTHX_ PerlIO_funcs *tab)
+{
+ HV *stash = gv_stashpv("PerlIO::Layer", TRUE);
+ SV *sv = sv_bless(newRV_noinc(newSViv(PTR2IV(tab))), stash);
+ return sv;
+}
+
+XS(XS_PerlIO__Layer__find)
+{
+ dXSARGS;
+ if (items < 2)
+ Perl_croak(aTHX_ "Usage class->find(name[,load])");
+ else {
+ STRLEN len = 0;
+ char *name = SvPV(ST(1), len);
+ bool load = (items > 2) ? SvTRUE(ST(2)) : 0;
+ PerlIO_funcs *layer = PerlIO_find_layer(aTHX_ name, len, load);
+ ST(0) =
+ (layer) ? sv_2mortal(PerlIO_tab_sv(aTHX_ layer)) :
+ &PL_sv_undef;
+ XSRETURN(1);
+ }
}
void
-PerlIO_define_layer(PerlIO_funcs *tab)
+PerlIO_define_layer(pTHX_ PerlIO_funcs *tab)
+{
+ if (!PL_known_layers)
+ PL_known_layers = PerlIO_list_alloc(aTHX);
+ PerlIO_list_push(aTHX_ PL_known_layers, tab, Nullsv);
+ PerlIO_debug("define %s %p\n", tab->name, tab);
+}
+
+int
+PerlIO_parse_layers(pTHX_ PerlIO_list_t *av, const char *names)
+{
+ if (names) {
+ const char *s = names;
+ while (*s) {
+ while (isSPACE(*s) || *s == ':')
+ s++;
+ if (*s) {
+ STRLEN llen = 0;
+ const char *e = s;
+ const char *as = Nullch;
+ STRLEN alen = 0;
+ if (!isIDFIRST(*s)) {
+ /*
+ * 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) {
+ switch (*e++) {
+ 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;
+ }
+ }
+ }
+ if (e > s) {
+ PerlIO_funcs *layer =
+ PerlIO_find_layer(aTHX_ s, llen, 1);
+ if (layer) {
+ PerlIO_list_push(aTHX_ av, layer,
+ (as) ? newSVpvn(as,
+ alen) :
+ &PL_sv_undef);
+ }
+ else {
+ Perl_warn(aTHX_ "perlio: unknown layer \"%.*s\"",
+ (int) llen, s);
+ return -1;
+ }
+ }
+ s = e;
+ }
+ }
+ }
+ return 0;
+}
+
+void
+PerlIO_default_buffer(pTHX_ PerlIO_list_t *av)
+{
+ PerlIO_funcs *tab = &PerlIO_perlio;
+ if (O_BINARY != O_TEXT) {
+ tab = &PerlIO_crlf;
+ }
+ else {
+ if (PerlIO_stdio.Set_ptrcnt) {
+ tab = &PerlIO_stdio;
+ }
+ }
+ PerlIO_debug("Pushing %s\n", tab->name);
+ PerlIO_list_push(aTHX_ av, PerlIO_find_layer(aTHX_ tab->name, 0, 0),
+ &PL_sv_undef);
+}
+
+SV *
+PerlIO_arg_fetch(PerlIO_list_t *av, IV n)
{
- dTHX;
- 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 av->array[n].arg;
}
PerlIO_funcs *
-PerlIO_default_layer(I32 n)
-{
- 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__);
+PerlIO_layer_fetch(pTHX_ PerlIO_list_t *av, IV n, PerlIO_funcs *def)
+{
+ if (n >= 0 && n < av->cur) {
+ PerlIO_debug("Layer %" IVdf " is %s\n", n,
+ av->array[n].funcs->name);
+ return av->array[n].funcs;
+ }
+ if (!def)
+ Perl_croak(aTHX_ "panic: PerlIO layer array corrupt");
+ return def;
+}
+
+PerlIO_list_t *
+PerlIO_default_layers(pTHX)
+{
+ if (!PL_def_layerlist) {
+ const char *s = (PL_tainting) ? Nullch : PerlEnv_getenv("PERLIO");
+ PerlIO_funcs *osLayer = &PerlIO_unix;
+ PL_def_layerlist = PerlIO_list_alloc(aTHX);
+ PerlIO_define_layer(aTHX_ & PerlIO_unix);
+#if defined(WIN32) && !defined(UNDER_CE)
+ PerlIO_define_layer(aTHX_ & PerlIO_win32);
#if 0
- newXS("io::MODIFY_SCALAR_ATTRIBUTES",XS_io_MODIFY_SCALAR_ATTRIBUTES,__FILE__);
+ osLayer = &PerlIO_win32;
#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);
+#endif
+ PerlIO_define_layer(aTHX_ & PerlIO_raw);
+ PerlIO_define_layer(aTHX_ & PerlIO_perlio);
+ PerlIO_define_layer(aTHX_ & PerlIO_stdio);
+ PerlIO_define_layer(aTHX_ & PerlIO_crlf);
#ifdef HAS_MMAP
- PerlIO_define_layer(&PerlIO_mmap);
+ PerlIO_define_layer(aTHX_ & 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 (O_BINARY != O_TEXT)
- {
- av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_crlf.name,0)));
- }
- else
- {
- 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;
-}
-
-#define PerlIO_default_top() PerlIO_default_layer(-1)
-#define PerlIO_default_btm() PerlIO_default_layer(0)
+ PerlIO_define_layer(aTHX_ & PerlIO_utf8);
+ PerlIO_define_layer(aTHX_ & PerlIO_byte);
+ PerlIO_list_push(aTHX_ PL_def_layerlist,
+ PerlIO_find_layer(aTHX_ osLayer->name, 0, 0),
+ &PL_sv_undef);
+ if (s) {
+ PerlIO_parse_layers(aTHX_ PL_def_layerlist, s);
+ }
+ else {
+ PerlIO_default_buffer(aTHX_ PL_def_layerlist);
+ }
+ }
+ if (PL_def_layerlist->cur < 2) {
+ PerlIO_default_buffer(aTHX_ PL_def_layerlist);
+ }
+ return PL_def_layerlist;
+}
void
-PerlIO_stdstreams()
+Perl_boot_core_PerlIO(pTHX)
{
- if (!_perlio)
- {
- dTHX;
- PerlIO_allocate(aTHX);
- PerlIO_fdopen(0,"Ir" PERLIO_STDTEXT);
- PerlIO_fdopen(1,"Iw" PERLIO_STDTEXT);
- PerlIO_fdopen(2,"Iw" PERLIO_STDTEXT);
- }
+#ifdef USE_ATTRIBUTES_FOR_PERLIO
+ newXS("io::MODIFY_SCALAR_ATTRIBUTES", XS_io_MODIFY_SCALAR_ATTRIBUTES,
+ __FILE__);
+#endif
+ newXS("PerlIO::Layer::find", XS_PerlIO__Layer__find, __FILE__);
+}
+
+PerlIO_funcs *
+PerlIO_default_layer(pTHX_ I32 n)
+{
+ PerlIO_list_t *av = PerlIO_default_layers(aTHX);
+ if (n < 0)
+ n += av->cur;
+ return PerlIO_layer_fetch(aTHX_ av, n, &PerlIO_stdio);
+}
+
+#define PerlIO_default_top() PerlIO_default_layer(aTHX_ -1)
+#define PerlIO_default_btm() PerlIO_default_layer(aTHX_ 0)
+
+void
+PerlIO_stdstreams(pTHX)
+{
+ if (!PL_perlio) {
+ PerlIO_allocate(aTHX);
+ PerlIO_fdopen(0, "Ir" PERLIO_STDTEXT);
+ PerlIO_fdopen(1, "Iw" PERLIO_STDTEXT);
+ PerlIO_fdopen(2, "Iw" PERLIO_STDTEXT);
+ }
}
PerlIO *
-PerlIO_push(PerlIO *f,PerlIO_funcs *tab,const char *mode)
-{
- dTHX;
- PerlIOl *l = NULL;
- l = PerlMemShared_calloc(tab->size,sizeof(char));
- if (l)
- {
- Zero(l,tab->size,char);
- l->next = *f;
- l->tab = tab;
- *f = l;
- PerlIO_debug("PerlIO_push f=%p %s %s\n",f,tab->name,(mode) ? mode : "(Null)");
- if ((*l->tab->Pushed)(f,mode) != 0)
- {
- PerlIO_pop(f);
- return NULL;
- }
- }
- return f;
+PerlIO_push(pTHX_ PerlIO *f, PerlIO_funcs *tab, const char *mode, SV *arg)
+{
+ PerlIOl *l = NULL;
+ Newc('L',l,tab->size,char,PerlIOl);
+ if (l) {
+ 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) {
+ PerlIO_pop(aTHX_ f);
+ return NULL;
+ }
+ }
+ return f;
+}
+
+IV
+PerlIOPop_pushed(PerlIO *f, const char *mode, SV *arg)
+{
+ dTHX;
+ PerlIO_pop(aTHX_ f);
+ if (*f) {
+ PerlIO_flush(f);
+ PerlIO_pop(aTHX_ f);
+ return 0;
+ }
+ return -1;
+}
+
+IV
+PerlIORaw_pushed(PerlIO *f, const char *mode, SV *arg)
+{
+ /*
+ * Remove the dummy layer
+ */
+ dTHX;
+ PerlIO_pop(aTHX_ f);
+ /*
+ * Pop back to bottom layer
+ */
+ if (f && *f) {
+ 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;
+}
+
+int
+PerlIO_apply_layera(pTHX_ PerlIO *f, const char *mode,
+ PerlIO_list_t *layers, IV n)
+{
+ IV max = layers->cur;
+ 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++;
+ }
+ return code;
}
int
PerlIO_apply_layers(pTHX_ PerlIO *f, const char *mode, const char *names)
{
- if (names)
- {
- const char *s = names;
- while (*s)
- {
- while (isSPACE(*s))
- s++;
- if (*s == ':')
- s++;
- if (*s)
- {
- const char *e = s;
- while (*e && *e != ':' && !isSPACE(*e))
- e++;
- if (e > s)
- {
- if ((e - s) == 3 && strncmp(s,"raw",3) == 0)
- {
- /* Pop back to bottom layer */
- if (PerlIONext(f))
- {
- PerlIO_flush(f);
- while (PerlIONext(f))
- {
- PerlIO_pop(f);
- }
- }
- }
- else
- {
- SV *layer = PerlIO_find_layer(s,e-s);
- if (layer)
- {
- PerlIO_funcs *tab = INT2PTR(PerlIO_funcs *, SvIV(SvRV(layer)));
- if (tab)
- {
- PerlIO *new = PerlIO_push(f,tab,mode);
- if (!new)
- return -1;
- }
- }
- else
- Perl_warn(aTHX_ "perlio: unknown layer \"%.*s\"",(int)(e-s),s);
- }
- }
- s = e;
- }
- }
- }
- return 0;
+ int code = 0;
+ if (names) {
+ PerlIO_list_t *layers = PerlIO_list_alloc(aTHX);
+ code = PerlIO_parse_layers(aTHX_ layers, names);
+ if (code == 0) {
+ code = PerlIO_apply_layera(aTHX_ f, mode, layers, 0);
+ }
+ PerlIO_list_free(aTHX_ layers);
+ }
+ return code;
}
-
/*--------------------------------------------------------------------------------------*/
-/* Given the abstraction above the public API functions */
+/*
+ * 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;
+ 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;
+ }
+ top = PerlIONext(top);
+ PerlIO_flush(top);
+ }
+ }
+ return PerlIO_apply_layers(aTHX_ f, NULL, names) == 0 ? TRUE : FALSE;
}
#undef PerlIO__close
int
PerlIO__close(PerlIO *f)
{
- return (*PerlIOBase(f)->tab->Close)(f);
-}
-
-#undef PerlIO_fdupopen
-PerlIO *
-PerlIO_fdupopen(pTHX_ PerlIO *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;
+ if (f && *f)
+ return (*PerlIOBase(f)->tab->Close) (f);
+ else {
+ SETERRNO(EBADF, SS$_IVCHAN);
+ return -1;
+ }
}
#undef PerlIO_close
int
PerlIO_close(PerlIO *f)
{
- int code = (*PerlIOBase(f)->tab->Close)(f);
- while (*f)
- {
- PerlIO_pop(f);
- }
- return code;
+ dTHX;
+ int code = -1;
+ if (f && *f) {
+ code = (*PerlIOBase(f)->tab->Close) (f);
+ while (*f) {
+ PerlIO_pop(aTHX_ f);
+ }
+ }
+ return code;
}
#undef PerlIO_fileno
int
PerlIO_fileno(PerlIO *f)
{
- return (*PerlIOBase(f)->tab->Fileno)(f);
+ if (f && *f)
+ return (*PerlIOBase(f)->tab->Fileno) (f);
+ else {
+ SETERRNO(EBADF, SS$_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 PerlIO_funcs *
+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 NULL;
+}
+
+PerlIO_list_t *
+PerlIO_resolve_layers(pTHX_ const char *layers,
+ const char *mode, int narg, SV **args)
+{
+ PerlIO_list_t *def = PerlIO_default_layers(aTHX);
+ int incdef = 1;
+ if (!PL_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)) {
+ PerlIO_funcs *handler = PerlIO_layer_from_ref(aTHX_ SvRV(arg));
+ if (handler) {
+ def = PerlIO_list_alloc(aTHX);
+ PerlIO_list_push(aTHX_ def, handler, &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) {
+ PerlIO_list_t *av;
+ if (incdef) {
+ IV i = def->cur;
+ av = PerlIO_list_alloc(aTHX);
+ for (i = 0; i < def->cur; i++) {
+ PerlIO_list_push(aTHX_ av, def->array[i].funcs,
+ def->array[i].arg);
+ }
+ }
+ else {
+ av = def;
+ }
+ PerlIO_parse_layers(aTHX_ av, layers);
+ return av;
+ }
+ else {
+ if (incdef)
+ def->refcnt++;
+ 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 {
+ PerlIO_list_t *layera = NULL;
+ IV n;
+ PerlIO_funcs *tab = NULL;
+ if (f && *f) {
+ /*
+ * This is "reopen" - it is not tested as perl does not use it
+ * yet
+ */
+ PerlIOl *l = *f;
+ layera = PerlIO_list_alloc(aTHX);
+ while (l) {
+ SV *arg =
+ (l->tab->Getarg) ? (*l->tab->
+ Getarg) (&l) : &PL_sv_undef;
+ PerlIO_list_push(aTHX_ layera, l->tab, arg);
+ l = *PerlIONext(&l);
+ }
+ }
+ else {
+ layera = PerlIO_resolve_layers(aTHX_ layers, mode, narg, args);
+ }
+ /*
+ * Start at "top" of layer stack
+ */
+ n = layera->cur - 1;
+ while (n >= 0) {
+ PerlIO_funcs *t = PerlIO_layer_fetch(aTHX_ layera, n, NULL);
+ if (t && t->Open) {
+ tab = t;
+ break;
+ }
+ n--;
+ }
+ if (tab) {
+ /*
+ * Found that layer 'n' can do opens - call it
+ */
+ 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 + 1 < layera->cur) {
+ /*
+ * More layers above the one that we used to open -
+ * apply them now
+ */
+ if (PerlIO_apply_layera(aTHX_ f, mode, layera, n + 1)
+ != 0) {
+ f = NULL;
+ }
+ }
+ }
+ }
+ PerlIO_list_free(aTHX_ layera);
+ }
+ return f;
+}
#undef PerlIO_fdopen
PerlIO *
PerlIO_fdopen(int fd, const char *mode)
{
- PerlIO_funcs *tab = PerlIO_default_top();
- if (!_perlio)
- PerlIO_stdstreams();
- return (*tab->Fdopen)(tab,fd,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)
{
- PerlIO_funcs *tab = PerlIO_default_top();
- if (!_perlio)
- PerlIO_stdstreams();
- return (*tab->Open)(tab,path,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)
{
- if (f)
- {
- PerlIO_flush(f);
- if ((*PerlIOBase(f)->tab->Reopen)(path,mode,f) == 0)
- {
- if ((*PerlIOBase(f)->tab->Pushed)(f,mode) == 0)
- return f;
- }
- return NULL;
- }
- else
- return PerlIO_open(path,mode);
+ 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)
{
- return (*PerlIOBase(f)->tab->Read)(f,vbuf,count);
+ if (f && *f)
+ return (*PerlIOBase(f)->tab->Read) (f, vbuf, count);
+ else {
+ SETERRNO(EBADF, SS$_IVCHAN);
+ return -1;
+ }
}
#undef PerlIO_unread
SSize_t
PerlIO_unread(PerlIO *f, const void *vbuf, Size_t count)
{
- return (*PerlIOBase(f)->tab->Unread)(f,vbuf,count);
+ if (f && *f)
+ return (*PerlIOBase(f)->tab->Unread) (f, vbuf, count);
+ else {
+ SETERRNO(EBADF, SS$_IVCHAN);
+ return -1;
+ }
}
#undef PerlIO_write
SSize_t
PerlIO_write(PerlIO *f, const void *vbuf, Size_t count)
{
- return (*PerlIOBase(f)->tab->Write)(f,vbuf,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$_IVCHAN);
+ return -1;
+ }
}
#undef PerlIO_flush
int
PerlIO_flush(PerlIO *f)
{
- if (f)
- {
- return (*PerlIOBase(f)->tab->Flush)(f);
- }
- else
- {
- PerlIO **table = &_perlio;
- int code = 0;
- while ((f = *table))
- {
- int i;
- table = (PerlIO **)(f++);
- for (i=1; i < PERLIO_TABLE_SIZE; i++)
- {
- if (*f && PerlIO_flush(f) != 0)
- code = -1;
- f++;
- }
- }
- return code;
- }
+ if (f) {
+ if (*f) {
+ PerlIO_funcs *tab = PerlIOBase(f)->tab;
+ if (tab && tab->Flush) {
+ return (*tab->Flush) (f);
+ }
+ else {
+ PerlIO_debug("Cannot flush f=%p :%s\n", f, tab->name);
+ SETERRNO(EBADF, SS$_IVCHAN);
+ return -1;
+ }
+ }
+ else {
+ PerlIO_debug("Cannot flush f=%p\n", f);
+ SETERRNO(EBADF, SS$_IVCHAN);
+ return -1;
+ }
+ }
+ else {
+ /*
+ * Is it good API design to do flush-all on NULL, a potentially
+ * errorneous input? Maybe some magical value (PerlIO*
+ * PERLIO_FLUSH_ALL = (PerlIO*)-1;)? Yes, stdio does similar
+ * things on fflush(NULL), but should we be bound by their design
+ * decisions? --jhi
+ */
+ dTHX;
+ PerlIO **table = &PL_perlio;
+ int code = 0;
+ while ((f = *table)) {
+ int i;
+ table = (PerlIO **) (f++);
+ for (i = 1; i < PERLIO_TABLE_SIZE; i++) {
+ if (*f && PerlIO_flush(f) != 0)
+ code = -1;
+ f++;
+ }
+ }
+ return code;
+ }
+}
+
+void
+PerlIOBase_flush_linebuf()
+{
+ dTHX;
+ PerlIO **table = &PL_perlio;
+ PerlIO *f;
+ while ((f = *table)) {
+ int i;
+ table = (PerlIO **) (f++);
+ for (i = 1; i < PERLIO_TABLE_SIZE; i++) {
+ if (*f
+ && (PerlIOBase(f)->
+ flags & (PERLIO_F_LINEBUF | PERLIO_F_CANWRITE))
+ == (PERLIO_F_LINEBUF | PERLIO_F_CANWRITE))
+ PerlIO_flush(f);
+ f++;
+ }
+ }
}
#undef PerlIO_fill
int
PerlIO_fill(PerlIO *f)
{
- return (*PerlIOBase(f)->tab->Fill)(f);
+ if (f && *f)
+ return (*PerlIOBase(f)->tab->Fill) (f);
+ else {
+ SETERRNO(EBADF, SS$_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$_IVCHAN);
+ return -1;
+ }
}
#undef PerlIO_clearerr
void
PerlIO_clearerr(PerlIO *f)
{
- if (f && *f)
- (*PerlIOBase(f)->tab->Clearerr)(f);
+ if (f && *f)
+ (*PerlIOBase(f)->tab->Clearerr) (f);
+ else
+ SETERRNO(EBADF, SS$_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);
- }
- return 0;
+ if (f && *f) {
+ return (PerlIOBase(f)->tab->Get_base != NULL);
+ }
+ return 0;
}
#undef PerlIO_fast_gets
int
PerlIO_fast_gets(PerlIO *f)
{
- if (f && *f && (PerlIOBase(f)->flags & PERLIO_F_FASTGETS))
- {
- PerlIO_funcs *tab = PerlIOBase(f)->tab;
- return (tab->Set_ptrcnt != NULL);
- }
- return 0;
+ if (f && *f && (PerlIOBase(f)->flags & PERLIO_F_FASTGETS)) {
+ PerlIO_funcs *tab = PerlIOBase(f)->tab;
+ return (tab->Set_ptrcnt != NULL);
+ }
+ return 0;
}
#undef PerlIO_has_cntptr
int
PerlIO_has_cntptr(PerlIO *f)
{
- if (f && *f)
- {
- PerlIO_funcs *tab = PerlIOBase(f)->tab;
- return (tab->Get_ptr != NULL && tab->Get_cnt != NULL);
- }
- return 0;
+ if (f && *f) {
+ PerlIO_funcs *tab = PerlIOBase(f)->tab;
+ return (tab->Get_ptr != NULL && tab->Get_cnt != NULL);
+ }
+ return 0;
}
#undef PerlIO_canset_cnt
int
PerlIO_canset_cnt(PerlIO *f)
{
- if (f && *f)
- {
- PerlIOl *l = PerlIOBase(f);
- return (l->tab->Set_ptrcnt != NULL);
- }
- return 0;
+ if (f && *f) {
+ PerlIOl *l = PerlIOBase(f);
+ return (l->tab->Set_ptrcnt != NULL);
+ }
+ return 0;
}
#undef PerlIO_get_base
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)
{
- PerlIO_funcs *tab = PerlIOBase(f)->tab;
- if (tab->Get_ptr == NULL)
- return NULL;
- return (*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)
{
- PerlIO_funcs *tab = PerlIOBase(f)->tab;
- if (tab->Get_cnt == NULL)
- return 0;
- return (*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
void
-PerlIO_set_cnt(PerlIO *f,int cnt)
+PerlIO_set_cnt(PerlIO *f, int cnt)
{
- (*PerlIOBase(f)->tab->Set_ptrcnt)(f,NULL,cnt);
+ (*PerlIOBase(f)->tab->Set_ptrcnt) (f, NULL, cnt);
}
#undef PerlIO_set_ptrcnt
void
-PerlIO_set_ptrcnt(PerlIO *f, STDCHAR *ptr, int cnt)
+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);
+ 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);
}
/*--------------------------------------------------------------------------------------*/
-/* "Methods" of the "base class" */
+/*
+ * 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, PerlIO_list_t *layers,
+ IV n, const char *mode, int fd, int imode, int perm,
+ PerlIO *old, int narg, SV **args)
+{
+ PerlIO_funcs *tab = PerlIO_default_btm();
+ return (*tab->Open) (aTHX_ tab, layers, n - 1, 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"
+ */
IV
PerlIOBase_fileno(PerlIO *f)
{
- return PerlIO_fileno(PerlIONext(f));
+ 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++ = '+';
- }
- }
+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';
+ if (!(flags & PERLIO_F_CRLF))
+ *s++ = 'b';
#endif
- *s = '\0';
- return buf;
+ *s = '\0';
+ return buf;
}
IV
-PerlIOBase_pushed(PerlIO *f, const char *mode)
-{
- 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);
- if (tab->Set_ptrcnt != NULL)
- l->flags |= PERLIO_F_FASTGETS;
- if (mode)
- {
- switch (*mode++)
- {
- case 'r':
- l->flags |= PERLIO_F_CANREAD;
- break;
- case 'a':
- l->flags |= PERLIO_F_APPEND|PERLIO_F_CANWRITE;
- break;
- case 'w':
- l->flags |= PERLIO_F_TRUNCATE|PERLIO_F_CANWRITE;
- break;
- default:
- errno = EINVAL;
- return -1;
- }
- while (*mode)
- {
- switch (*mode++)
- {
- case '+':
- l->flags |= PERLIO_F_CANREAD|PERLIO_F_CANWRITE;
- break;
- case 'b':
- l->flags &= ~PERLIO_F_CRLF;
- break;
- case 't':
- l->flags |= PERLIO_F_CRLF;
- break;
- default:
- errno = EINVAL;
- return -1;
- }
- }
- }
- else
- {
- if (l->next)
- {
- l->flags |= l->next->flags &
- (PERLIO_F_CANREAD|PERLIO_F_CANWRITE|PERLIO_F_TRUNCATE|PERLIO_F_APPEND);
- }
- }
+PerlIOBase_pushed(PerlIO *f, const char *mode, SV *arg)
+{
+ PerlIOl *l = PerlIOBase(f);
#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));
+ const char *omode = mode;
+ char temp[8];
#endif
- return 0;
+ PerlIO_funcs *tab = PerlIOBase(f)->tab;
+ l->flags &= ~(PERLIO_F_CANREAD | PERLIO_F_CANWRITE |
+ 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;
+ break;
+ case 'a':
+ l->flags |= PERLIO_F_APPEND | PERLIO_F_CANWRITE;
+ break;
+ case 'w':
+ l->flags |= PERLIO_F_TRUNCATE | PERLIO_F_CANWRITE;
+ break;
+ default:
+ SETERRNO(EINVAL, LIB$_INVARG);
+ return -1;
+ }
+ while (*mode) {
+ switch (*mode++) {
+ case '+':
+ l->flags |= PERLIO_F_CANREAD | PERLIO_F_CANWRITE;
+ break;
+ case 'b':
+ l->flags &= ~PERLIO_F_CRLF;
+ break;
+ case 't':
+ l->flags |= PERLIO_F_CRLF;
+ break;
+ default:
+ SETERRNO(EINVAL, LIB$_INVARG);
+ return -1;
+ }
+ }
+ }
+ else {
+ if (l->next) {
+ l->flags |= l->next->flags &
+ (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;
}
IV
PerlIOBase_popped(PerlIO *f)
{
- return 0;
+ return 0;
}
-extern PerlIO_funcs PerlIO_pending;
-
SSize_t
PerlIOBase_unread(PerlIO *f, const void *vbuf, Size_t count)
{
-#if 0
- Off_t old = PerlIO_tell(f);
- if (0 && PerlIO_seek(f,-((Off_t)count),SEEK_CUR) == 0)
- {
- Off_t new = PerlIO_tell(f);
- return old - new;
- }
- else
- {
- return 0;
- }
-#else
- PerlIO_push(f,&PerlIO_pending,"r");
- return PerlIOBuf_unread(f,vbuf,count);
-#endif
+ dTHX;
+ /*
+ * Save the position as current head considers it
+ */
+ Off_t old = PerlIO_tell(f);
+ SSize_t done;
+ PerlIO_push(aTHX_ f, &PerlIO_pending, "r", Nullsv);
+ PerlIOSelf(f, PerlIOBuf)->posn = old;
+ done = PerlIOBuf_unread(f, vbuf, count);
+ return done;
+}
+
+SSize_t
+PerlIOBase_read(PerlIO *f, void *vbuf, Size_t count)
+{
+ STDCHAR *buf = (STDCHAR *) vbuf;
+ if (f) {
+ 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;
}
IV
PerlIOBase_noop_ok(PerlIO *f)
{
- return 0;
+ return 0;
}
IV
PerlIOBase_noop_fail(PerlIO *f)
{
- return -1;
+ return -1;
}
IV
PerlIOBase_close(PerlIO *f)
{
- IV code = 0;
- PerlIO *n = PerlIONext(f);
- if (PerlIO_flush(f) != 0)
- code = -1;
- if (n && (*PerlIOBase(n)->tab->Close)(n) != 0)
- code = -1;
- PerlIOBase(f)->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE|PERLIO_F_OPEN);
- return code;
+ IV code = 0;
+ PerlIO *n = PerlIONext(f);
+ if (PerlIO_flush(f) != 0)
+ code = -1;
+ 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;
}
IV
PerlIOBase_eof(PerlIO *f)
{
- if (f && *f)
- {
- return (PerlIOBase(f)->flags & PERLIO_F_EOF) != 0;
- }
- return 1;
+ if (f && *f) {
+ return (PerlIOBase(f)->flags & PERLIO_F_EOF) != 0;
+ }
+ return 1;
}
IV
PerlIOBase_error(PerlIO *f)
{
- if (f && *f)
- {
- return (PerlIOBase(f)->flags & PERLIO_F_ERROR) != 0;
- }
- return 1;
+ if (f && *f) {
+ return (PerlIOBase(f)->flags & PERLIO_F_ERROR) != 0;
+ }
+ return 1;
}
void
PerlIOBase_clearerr(PerlIO *f)
{
- if (f && *f)
- {
- PerlIO *n = PerlIONext(f);
- PerlIOBase(f)->flags &= ~(PERLIO_F_ERROR|PERLIO_F_EOF);
- if (n)
- PerlIO_clearerr(n);
- }
+ if (f && *f) {
+ 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;
+ }
}
/*--------------------------------------------------------------------------------------*/
-/* Bottom-most level for UNIX-like case */
+/*
+ * Bottom-most level for UNIX-like case
+ */
-typedef struct
-{
- struct _PerlIO base; /* The generic part */
- int fd; /* UNIX like file descriptor */
- int oflags; /* open/fcntl flags */
+typedef struct {
+ struct _PerlIO base; /* The generic part */
+ int fd; /* UNIX like file descriptor */
+ int oflags; /* open/fcntl flags */
} PerlIOUnix;
int
PerlIOUnix_oflags(const char *mode)
{
- int oflags = -1;
- switch(*mode)
- {
- case 'r':
- oflags = O_RDONLY;
- if (*++mode == '+')
- {
- oflags = O_RDWR;
- mode++;
- }
- break;
-
- case 'w':
- oflags = O_CREAT|O_TRUNC;
- if (*++mode == '+')
- {
- oflags |= O_RDWR;
- mode++;
- }
- else
- oflags |= O_WRONLY;
- break;
-
- case 'a':
- oflags = O_CREAT|O_APPEND;
- if (*++mode == '+')
- {
- oflags |= O_RDWR;
- mode++;
- }
- else
- 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;
- oflags = -1;
- }
- return oflags;
+ int oflags = -1;
+ if (*mode == 'I' || *mode == '#')
+ mode++;
+ switch (*mode) {
+ case 'r':
+ oflags = O_RDONLY;
+ if (*++mode == '+') {
+ oflags = O_RDWR;
+ mode++;
+ }
+ break;
+
+ case 'w':
+ oflags = O_CREAT | O_TRUNC;
+ if (*++mode == '+') {
+ oflags |= O_RDWR;
+ mode++;
+ }
+ else
+ oflags |= O_WRONLY;
+ break;
+
+ case 'a':
+ oflags = O_CREAT | O_APPEND;
+ if (*++mode == '+') {
+ oflags |= O_RDWR;
+ mode++;
+ }
+ else
+ 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) {
+ SETERRNO(EINVAL, LIB$_INVARG);
+ oflags = -1;
+ }
+ return oflags;
}
IV
PerlIOUnix_fileno(PerlIO *f)
{
- return PerlIOSelf(f,PerlIOUnix)->fd;
+ return PerlIOSelf(f, PerlIOUnix)->fd;
+}
+
+IV
+PerlIOUnix_pushed(PerlIO *f, const char *mode, SV *arg)
+{
+ IV code = PerlIOBase_pushed(f, mode, arg);
+ 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
+ * handle rather than believing the "mode" we are passed in? XXX
+ * Should the value on NULL mode be 0 or -1?
+ */
+ s->oflags = mode ? PerlIOUnix_oflags(mode) : -1;
+ }
+ PerlIOBase(f)->flags |= PERLIO_F_OPEN;
+ return code;
}
PerlIO *
-PerlIOUnix_fdopen(PerlIO_funcs *self, int fd,const char *mode)
-{
- dTHX;
- PerlIO *f = NULL;
- if (*mode == 'I')
- mode++;
- if (fd >= 0)
- {
- int oflags = PerlIOUnix_oflags(mode);
- if (oflags != -1)
- {
- PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(aTHX),self,mode),PerlIOUnix);
- s->fd = fd;
- s->oflags = oflags;
- PerlIOBase(f)->flags |= PERLIO_F_OPEN;
- }
- }
- return f;
+PerlIOUnix_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers,
+ IV n, const char *mode, int fd, int imode,
+ int perm, PerlIO *f, int narg, SV **args)
+{
+ if (f) {
+ 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) {
+ fd = PerlLIO_open3(path, imode, perm);
+ }
+ }
+ if (fd >= 0) {
+ PerlIOUnix *s;
+ if (*mode == 'I')
+ mode++;
+ if (!f) {
+ 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;
+ }
+}
+
+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 *
-PerlIOUnix_open(PerlIO_funcs *self, const char *path,const char *mode)
+PerlIOBase_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param)
{
- dTHX;
- PerlIO *f = NULL;
- int oflags = PerlIOUnix_oflags(mode);
- if (oflags != -1)
- {
- int fd = PerlLIO_open3(path,oflags,0666);
- if (fd >= 0)
- {
- PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(aTHX),self,mode),PerlIOUnix);
- s->fd = fd;
- s->oflags = oflags;
- PerlIOBase(f)->flags |= PERLIO_F_OPEN;
+ 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;
+ 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)
- {
- dTHX;
- int fd = PerlLIO_open3(path,oflags,0666);
- if (fd >= 0)
- {
- s->fd = fd;
- s->oflags = oflags;
- PerlIOBase(f)->flags |= PERLIO_F_OPEN;
- return 0;
- }
- }
- return -1;
+PerlIO *
+PerlIOUnix_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param)
+{
+ PerlIOUnix *os = PerlIOSelf(o, PerlIOUnix);
+ int fd = PerlLIO_dup(os->fd);
+ if (fd >= 0) {
+ f = PerlIOBase_dup(aTHX_ f, o, param);
+ 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;
+ return f;
+ }
+ else {
+ PerlLIO_close(fd);
+ }
+ }
+ return NULL;
}
+
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;
- while (1)
- {
- SSize_t len = PerlLIO_read(fd,vbuf,count);
- if (len >= 0 || errno != EINTR)
- {
- if (len < 0)
- PerlIOBase(f)->flags |= PERLIO_F_ERROR;
- else if (len == 0 && count != 0)
- PerlIOBase(f)->flags |= PERLIO_F_EOF;
- return len;
+ dTHX;
+ int fd = PerlIOSelf(f, PerlIOUnix)->fd;
+ if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD))
+ return 0;
+ while (1) {
+ SSize_t len = PerlLIO_read(fd, vbuf, count);
+ if (len >= 0 || errno != EINTR) {
+ if (len < 0)
+ PerlIOBase(f)->flags |= PERLIO_F_ERROR;
+ else if (len == 0 && count != 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)
- {
- SSize_t len = PerlLIO_write(fd,vbuf,count);
- if (len >= 0 || errno != EINTR)
- {
- if (len < 0)
- PerlIOBase(f)->flags |= PERLIO_F_ERROR;
- return len;
+ dTHX;
+ int fd = PerlIOSelf(f, PerlIOUnix)->fd;
+ while (1) {
+ SSize_t len = PerlLIO_write(fd, vbuf, count);
+ if (len >= 0 || errno != EINTR) {
+ if (len < 0)
+ 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;
+ dSYS;
+ 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;
- return PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,0,SEEK_CUR);
+ dSYS;
+ 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)
- {
- if (errno != EINTR)
- {
- code = -1;
- break;
+ dTHX;
+ int fd = PerlIOSelf(f, PerlIOUnix)->fd;
+ int code = 0;
+ while (PerlLIO_close(fd) != 0) {
+ if (errno != EINTR) {
+ code = -1;
+ break;
+ }
+ PERL_ASYNC_CHECK();
}
- }
- if (code == 0)
- {
- PerlIOBase(f)->flags &= ~PERLIO_F_OPEN;
- }
- return code;
+ if (code == 0) {
+ PerlIOBase(f)->flags &= ~PERLIO_F_OPEN;
+ }
+ return code;
}
PerlIO_funcs PerlIO_unix = {
- "unix",
- sizeof(PerlIOUnix),
- PERLIO_K_RAW,
- PerlIOUnix_fileno,
- PerlIOUnix_fdopen,
- PerlIOUnix_open,
- PerlIOUnix_reopen,
- PerlIOBase_pushed,
- PerlIOBase_noop_ok,
- PerlIOUnix_read,
- PerlIOBase_unread,
- PerlIOUnix_write,
- PerlIOUnix_seek,
- PerlIOUnix_tell,
- PerlIOUnix_close,
- PerlIOBase_noop_ok, /* flush */
- PerlIOBase_noop_fail, /* fill */
- PerlIOBase_eof,
- PerlIOBase_error,
- PerlIOBase_clearerr,
- PerlIOBase_setlinebuf,
- NULL, /* get_base */
- NULL, /* get_bufsiz */
- NULL, /* get_ptr */
- NULL, /* get_cnt */
- NULL, /* set_ptrcnt */
+ "unix",
+ sizeof(PerlIOUnix),
+ PERLIO_K_RAW,
+ PerlIOUnix_pushed,
+ PerlIOBase_noop_ok,
+ PerlIOUnix_open,
+ NULL,
+ PerlIOUnix_fileno,
+ PerlIOUnix_dup,
+ PerlIOUnix_read,
+ PerlIOBase_unread,
+ PerlIOUnix_write,
+ PerlIOUnix_seek,
+ PerlIOUnix_tell,
+ PerlIOUnix_close,
+ PerlIOBase_noop_ok, /* flush */
+ PerlIOBase_noop_fail, /* fill */
+ PerlIOBase_eof,
+ PerlIOBase_error,
+ PerlIOBase_clearerr,
+ PerlIOBase_setlinebuf,
+ NULL, /* get_base */
+ NULL, /* get_bufsiz */
+ NULL, /* get_ptr */
+ NULL, /* get_cnt */
+ NULL, /* set_ptrcnt */
};
/*--------------------------------------------------------------------------------------*/
-/* stdio as a layer */
+/*
+ * stdio as a layer
+ */
-typedef struct
-{
- struct _PerlIO base;
- FILE * stdio; /* The stream */
+typedef struct {
+ struct _PerlIO base;
+ FILE *stdio; /* The stream */
} PerlIOStdio;
IV
PerlIOStdio_fileno(PerlIO *f)
{
- dTHX;
- return PerlSIO_fileno(PerlIOSelf(f,PerlIOStdio)->stdio);
+ dSYS;
+ return PerlSIO_fileno(PerlIOSelf(f, PerlIOStdio)->stdio);
}
-const char *
-PerlIOStdio_mode(const char *mode,char *tmode)
+char *
+PerlIOStdio_mode(const char *mode, char *tmode)
{
- const char *ret = mode;
- if (O_BINARY != O_TEXT)
- {
- ret = (const char *) tmode;
- while (*mode)
- {
- *tmode++ = *mode++;
+ char *ret = tmode;
+ while (*mode) {
+ *tmode++ = *mode++;
+ }
+ if (O_BINARY != O_TEXT) {
+ *tmode++ = 'b';
}
- *tmode++ = 'b';
- *tmode = '\0';
- }
- return ret;
+ *tmode = '\0';
+ return ret;
}
-PerlIO *
-PerlIOStdio_fdopen(PerlIO_funcs *self, int fd,const char *mode)
-{
- dTHX;
- PerlIO *f = NULL;
- int init = 0;
- char tmode[8];
- if (*mode == 'I')
- {
- init = 1;
- mode++;
- }
- if (fd >= 0)
- {
- FILE *stdio = NULL;
- 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(f = PerlIO_allocate(aTHX),self,mode),PerlIOStdio);
- s->stdio = stdio;
- }
- }
- return f;
+/*
+ * This isn't used yet ...
+ */
+IV
+PerlIOStdio_pushed(PerlIO *f, const char *mode, SV *arg)
+{
+ if (*PerlIONext(f)) {
+ dSYS;
+ PerlIOStdio *s = PerlIOSelf(f, PerlIOStdio);
+ char tmode[8];
+ FILE *stdio =
+ PerlSIO_fdopen(PerlIO_fileno(PerlIONext(f)), mode =
+ PerlIOStdio_mode(mode, tmode));
+ if (stdio)
+ s->stdio = stdio;
+ else
+ return -1;
+ }
+ 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(aTHX),&PerlIO_stdio,"r+"),PerlIOStdio);
- s->stdio = stdio;
- }
- return f;
+ dTHX;
+ PerlIO *f = NULL;
+ if (stdio) {
+ 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)
-{
- dTHX;
- PerlIO *f = NULL;
- FILE *stdio = PerlSIO_fopen(path,mode);
- if (stdio)
- {
- char tmode[8];
- PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(aTHX), self,
- (mode = PerlIOStdio_mode(mode,tmode))),
- PerlIOStdio);
- s->stdio = stdio;
- }
- return f;
-}
-
-int
-PerlIOStdio_reopen(const char *path, const char *mode, PerlIO *f)
-{
- dTHX;
- PerlIOStdio *s = PerlIOSelf(f,PerlIOStdio);
- char tmode[8];
- FILE *stdio = PerlSIO_freopen(path,(mode = PerlIOStdio_mode(mode,tmode)),s->stdio);
- if (!s->stdio)
- return -1;
- s->stdio = stdio;
- return 0;
+PerlIOStdio_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers,
+ IV n, const char *mode, int fd, int imode,
+ int perm, PerlIO *f, int narg, SV **args)
+{
+ char tmode[8];
+ if (f) {
+ 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;
+ }
+ 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)
- {
- STDCHAR *buf = (STDCHAR *) vbuf;
- /* Perl is expecting PerlIO_getc() to fill the buffer
- * Linux's stdio does not do that for fread()
- */
- int ch = PerlSIO_fgetc(s);
- if (ch != EOF)
- {
- *buf = ch;
- got = 1;
- }
- }
- else
- got = PerlSIO_fread(vbuf,1,count,s);
- return got;
+ dSYS;
+ FILE *s = PerlIOSelf(f, PerlIOStdio)->stdio;
+ SSize_t got = 0;
+ if (count == 1) {
+ STDCHAR *buf = (STDCHAR *) vbuf;
+ /*
+ * Perl is expecting PerlIO_getc() to fill the buffer Linux's
+ * stdio does not do that for fread()
+ */
+ int ch = PerlSIO_fgetc(s);
+ if (ch != EOF) {
+ *buf = ch;
+ got = 1;
+ }
+ }
+ else
+ 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 (PerlSIO_ungetc(ch,s) != ch)
- break;
- unread++;
- count--;
- }
- return unread;
+ dSYS;
+ FILE *s = PerlIOSelf(f, PerlIOStdio)->stdio;
+ STDCHAR *buf = ((STDCHAR *) vbuf) + count - 1;
+ SSize_t unread = 0;
+ while (count > 0) {
+ int ch = *buf-- & 0xff;
+ if (PerlSIO_ungetc(ch, s) != ch)
+ break;
+ unread++;
+ count--;
+ }
+ return unread;
}
SSize_t
PerlIOStdio_write(PerlIO *f, const void *vbuf, Size_t count)
{
- dTHX;
- return PerlSIO_fwrite(vbuf,1,count,PerlIOSelf(f,PerlIOStdio)->stdio);
+ dSYS;
+ 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 PerlSIO_fseek(stdio,offset,whence);
+ dSYS;
+ FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio;
+ return PerlSIO_fseek(stdio, offset, whence);
}
Off_t
PerlIOStdio_tell(PerlIO *f)
{
- dTHX;
- FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio;
- return PerlSIO_ftell(stdio);
+ dSYS;
+ FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio;
+ return PerlSIO_ftell(stdio);
}
IV
PerlIOStdio_close(PerlIO *f)
{
- dTHX;
-#ifdef HAS_SOCKET
- int optval, optlen = sizeof(int);
+ dSYS;
+#ifdef SOCKS5_VERSION_NAME
+ int optval;
+ Sock_size_t optlen = sizeof(int);
#endif
- FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio;
- return(
-#ifdef HAS_SOCKET
- (getsockopt(PerlIO_fileno(f), SOL_SOCKET, SO_TYPE, (char *)&optval, &optlen) < 0) ?
- PerlSIO_fclose(stdio) :
- close(PerlIO_fileno(f))
+ 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)
+ PerlSIO_fclose(stdio)
#endif
- );
+ );
}
IV
PerlIOStdio_flush(PerlIO *f)
{
- dTHX;
- FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio;
- if (PerlIOBase(f)->flags & PERLIO_F_CANWRITE)
- {
- return PerlSIO_fflush(stdio);
- }
- else
- {
+ dSYS;
+ FILE *stdio = PerlIOSelf(f, PerlIOStdio)->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;
+ /*
+ * 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;
+ }
+ return 0;
}
IV
PerlIOStdio_fill(PerlIO *f)
{
- dTHX;
- FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio;
- int 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;
+ dSYS;
+ FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio;
+ int 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)
{
- dTHX;
- return PerlSIO_feof(PerlIOSelf(f,PerlIOStdio)->stdio);
+ dSYS;
+ return PerlSIO_feof(PerlIOSelf(f, PerlIOStdio)->stdio);
}
IV
PerlIOStdio_error(PerlIO *f)
{
- dTHX;
- return PerlSIO_ferror(PerlIOSelf(f,PerlIOStdio)->stdio);
+ dSYS;
+ return PerlSIO_ferror(PerlIOSelf(f, PerlIOStdio)->stdio);
}
void
PerlIOStdio_clearerr(PerlIO *f)
{
- dTHX;
- PerlSIO_clearerr(PerlIOSelf(f,PerlIOStdio)->stdio);
+ dSYS;
+ PerlSIO_clearerr(PerlIOSelf(f, PerlIOStdio)->stdio);
}
void
PerlIOStdio_setlinebuf(PerlIO *f)
{
- dTHX;
+ dSYS;
#ifdef HAS_SETLINEBUF
- PerlSIO_setlinebuf(PerlIOSelf(f,PerlIOStdio)->stdio);
+ PerlSIO_setlinebuf(PerlIOSelf(f, PerlIOStdio)->stdio);
#else
- PerlSIO_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 PerlSIO_get_base(stdio);
+ dSYS;
+ FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio;
+ return PerlSIO_get_base(stdio);
}
Size_t
PerlIOStdio_get_bufsiz(PerlIO *f)
{
- dTHX;
- FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio;
- return PerlSIO_get_bufsiz(stdio);
+ dSYS;
+ FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio;
+ return PerlSIO_get_bufsiz(stdio);
}
#endif
STDCHAR *
PerlIOStdio_get_ptr(PerlIO *f)
{
- dTHX;
- FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio;
- return PerlSIO_get_ptr(stdio);
+ dSYS;
+ FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio;
+ return PerlSIO_get_ptr(stdio);
}
SSize_t
PerlIOStdio_get_cnt(PerlIO *f)
{
- dTHX;
- FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio;
- return PerlSIO_get_cnt(stdio);
+ dSYS;
+ FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio;
+ return PerlSIO_get_cnt(stdio);
}
void
-PerlIOStdio_set_ptrcnt(PerlIO *f,STDCHAR *ptr,SSize_t cnt)
+PerlIOStdio_set_ptrcnt(PerlIO *f, STDCHAR * ptr, SSize_t cnt)
{
- dTHX;
- FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio;
- if (ptr != NULL)
- {
+ FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio;
+ dSYS;
+ if (ptr != NULL) {
#ifdef STDIO_PTR_LVALUE
- PerlSIO_set_ptr(stdio,ptr);
+ PerlSIO_set_ptr(stdio, ptr);
#ifdef STDIO_PTR_LVAL_SETS_CNT
- if (PerlSIO_get_cnt(stdio) != (cnt))
- {
- dTHX;
- assert(PerlSIO_get_cnt(stdio) == (cnt));
- }
+ if (PerlSIO_get_cnt(stdio) != (cnt)) {
+ dTHX;
+ assert(PerlSIO_get_cnt(stdio) == (cnt));
+ }
#endif
#if (!defined(STDIO_PTR_LVAL_NOCHANGE_CNT))
- /* Setting ptr _does_ change cnt - we are done */
- return;
+ /*
+ * Setting ptr _does_ change cnt - we are done
+ */
+ return;
#endif
-#else /* STDIO_PTR_LVALUE */
- PerlProc_abort();
-#endif /* STDIO_PTR_LVALUE */
- }
-/* Now (or only) set cnt */
+#else /* STDIO_PTR_LVALUE */
+ PerlProc_abort();
+#endif /* STDIO_PTR_LVALUE */
+ }
+ /*
+ * Now (or only) set cnt
+ */
#ifdef STDIO_CNT_LVALUE
- PerlSIO_set_cnt(stdio,cnt);
-#else /* STDIO_CNT_LVALUE */
+ PerlSIO_set_cnt(stdio, cnt);
+#else /* STDIO_CNT_LVALUE */
#if (defined(STDIO_PTR_LVALUE) && defined(STDIO_PTR_LVAL_SETS_CNT))
- PerlSIO_set_ptr(stdio,PerlSIO_get_ptr(stdio)+(PerlSIO_get_cnt(stdio)-cnt));
-#else /* STDIO_PTR_LVAL_SETS_CNT */
- PerlProc_abort();
-#endif /* STDIO_PTR_LVAL_SETS_CNT */
-#endif /* STDIO_CNT_LVALUE */
+ PerlSIO_set_ptr(stdio,
+ PerlSIO_get_ptr(stdio) + (PerlSIO_get_cnt(stdio) -
+ cnt));
+#else /* STDIO_PTR_LVAL_SETS_CNT */
+ PerlProc_abort();
+#endif /* STDIO_PTR_LVAL_SETS_CNT */
+#endif /* STDIO_CNT_LVALUE */
}
#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),
- PERLIO_K_BUFFERED,
- PerlIOStdio_fileno,
- PerlIOStdio_fdopen,
- PerlIOStdio_open,
- PerlIOStdio_reopen,
- PerlIOBase_pushed,
- PerlIOBase_noop_ok,
- PerlIOStdio_read,
- PerlIOStdio_unread,
- PerlIOStdio_write,
- PerlIOStdio_seek,
- PerlIOStdio_tell,
- PerlIOStdio_close,
- PerlIOStdio_flush,
- PerlIOStdio_fill,
- PerlIOStdio_eof,
- PerlIOStdio_error,
- PerlIOStdio_clearerr,
- PerlIOStdio_setlinebuf,
+ "stdio",
+ sizeof(PerlIOStdio),
+ PERLIO_K_BUFFERED,
+ PerlIOBase_pushed,
+ PerlIOBase_noop_ok,
+ PerlIOStdio_open,
+ NULL,
+ PerlIOStdio_fileno,
+ PerlIOStdio_dup,
+ PerlIOStdio_read,
+ PerlIOStdio_unread,
+ PerlIOStdio_write,
+ PerlIOStdio_seek,
+ PerlIOStdio_tell,
+ PerlIOStdio_close,
+ PerlIOStdio_flush,
+ PerlIOStdio_fill,
+ PerlIOStdio_eof,
+ PerlIOStdio_error,
+ PerlIOStdio_clearerr,
+ PerlIOStdio_setlinebuf,
#ifdef FILE_base
- PerlIOStdio_get_base,
- PerlIOStdio_get_bufsiz,
+ PerlIOStdio_get_base,
+ PerlIOStdio_get_bufsiz,
#else
- NULL,
- NULL,
+ NULL,
+ NULL,
#endif
#ifdef USE_STDIO_PTR
- PerlIOStdio_get_ptr,
- PerlIOStdio_get_cnt,
+ PerlIOStdio_get_ptr,
+ PerlIOStdio_get_cnt,
#if (defined(STDIO_PTR_LVALUE) && (defined(STDIO_CNT_LVALUE) || defined(STDIO_PTR_LVAL_SETS_CNT)))
- PerlIOStdio_set_ptrcnt
-#else /* STDIO_PTR_LVALUE */
- NULL
-#endif /* STDIO_PTR_LVALUE */
-#else /* USE_STDIO_PTR */
- NULL,
- NULL,
- NULL
-#endif /* USE_STDIO_PTR */
+ PerlIOStdio_set_ptrcnt
+#else /* STDIO_PTR_LVALUE */
+ NULL
+#endif /* STDIO_PTR_LVALUE */
+#else /* USE_STDIO_PTR */
+ NULL,
+ NULL,
+ NULL
+#endif /* USE_STDIO_PTR */
};
#undef PerlIO_exportFILE
FILE *
PerlIO_exportFILE(PerlIO *f, int fl)
{
- PerlIO_flush(f);
- /* Should really push stdio discipline when we have them */
- return fdopen(PerlIO_fileno(f),"r+");
+ FILE *stdio;
+ PerlIO_flush(f);
+ 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)
{
- return PerlIO_exportFILE(f,0);
+ 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);
}
#undef PerlIO_releaseFILE
}
/*--------------------------------------------------------------------------------------*/
-/* perlio buffer layer */
+/*
+ * perlio buffer layer
+ */
IV
-PerlIOBuf_pushed(PerlIO *f, const char *mode)
-{
- PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
- b->posn = PerlIO_tell(PerlIONext(f));
- return PerlIOBase_pushed(f,mode);
+PerlIOBuf_pushed(PerlIO *f, const char *mode, SV *arg)
+{
+ dSYS;
+ PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf);
+ int fd = PerlIO_fileno(f);
+ Off_t posn;
+ if (fd >= 0 && PerlLIO_isatty(fd)) {
+ PerlIOBase(f)->flags |= PERLIO_F_LINEBUF | PERLIO_F_TTY;
+ }
+ posn = PerlIO_tell(PerlIONext(f));
+ if (posn != (Off_t) - 1) {
+ b->posn = posn;
+ }
+ return PerlIOBase_pushed(f, mode, arg);
}
PerlIO *
-PerlIOBuf_fdopen(PerlIO_funcs *self, int fd, const char *mode)
-{
- dTHX;
- PerlIO_funcs *tab = PerlIO_default_btm();
- int init = 0;
- PerlIO *f;
- if (*mode == 'I')
- {
- init = 1;
- mode++;
- }
+PerlIOBuf_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers,
+ IV n, const char *mode, int fd, int imode, int perm,
+ PerlIO *f, int narg, SV **args)
+{
+ if (f) {
+ PerlIO *next = PerlIONext(f);
+ PerlIO_funcs *tab =
+ PerlIO_layer_fetch(aTHX_ layers, n - 1, PerlIOBase(next)->tab);
+ next =
+ (*tab->Open) (aTHX_ tab, layers, n - 1, mode, fd, imode, perm,
+ next, narg, args);
+ if (!next
+ || (*PerlIOBase(f)->tab->Pushed) (f, mode, PerlIOArg) != 0) {
+ return NULL;
+ }
+ }
+ else {
+ PerlIO_funcs *tab =
+ PerlIO_layer_fetch(aTHX_ layers, n - 1, PerlIO_default_btm());
+ int init = 0;
+ if (*mode == 'I') {
+ init = 1;
+ /*
+ * mode++;
+ */
+ }
+ 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);
+ /*
+ * do something about failing setmode()? --jhi
+ */
+ PerlLIO_setmode(fd, O_BINARY);
#endif
- f = (*tab->Fdopen)(tab,fd,mode);
- if (f)
- {
- PerlIOBuf *b = PerlIOSelf(PerlIO_push(f,self,mode),PerlIOBuf);
- if (init && fd == 2)
- {
- /* Initial stderr is unbuffered */
- PerlIOBase(f)->flags |= PERLIO_F_UNBUF;
+ if (init && fd == 2) {
+ /*
+ * Initial stderr is unbuffered
+ */
+ PerlIOBase(f)->flags |= PERLIO_F_UNBUF;
+ }
+ }
}
-#if 0
- PerlIO_debug("PerlIOBuf_fdopen %s f=%p fd=%d m=%s fl=%08"UVxf"\n",
- self->name,f,fd,mode,PerlIOBase(f)->flags);
-#endif
- }
- return f;
-}
-
-PerlIO *
-PerlIOBuf_open(PerlIO_funcs *self, const char *path, const char *mode)
-{
- PerlIO_funcs *tab = PerlIO_default_btm();
- PerlIO *f = (*tab->Open)(tab,path,mode);
- if (f)
- {
- PerlIO_push(f,self,mode);
- }
- return f;
+ 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);
- return code;
-}
-
-/* This "flush" is akin to sfio's sync in that it handles files in either
- read or write state
-*/
+/*
+ * This "flush" is akin to sfio's sync in that it handles files in either
+ * read or write state
+ */
IV
PerlIOBuf_flush(PerlIO *f)
{
- PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
- int code = 0;
- if (PerlIOBase(f)->flags & PERLIO_F_WRBUF)
- {
- /* write() the buffer */
- STDCHAR *p = b->buf;
- int count;
- PerlIO *n = PerlIONext(f);
- while (p < b->ptr)
- {
- count = PerlIO_write(n,p,b->ptr - p);
- if (count > 0)
- {
- p += count;
- }
- else if (count < 0 || PerlIO_error(n))
- {
- PerlIOBase(f)->flags |= PERLIO_F_ERROR;
- code = -1;
- break;
- }
- }
- b->posn += (p - b->buf);
- }
- else if (PerlIOBase(f)->flags & PERLIO_F_RDBUF)
- {
- /* Note position change */
- b->posn += (b->ptr - b->buf);
- if (b->ptr < b->end)
- {
- /* We did not consume all of it */
- if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) == 0)
- {
- b->posn = PerlIO_tell(PerlIONext(f));
- }
- }
- }
- 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 *b = PerlIOSelf(f, PerlIOBuf);
+ int code = 0;
+ if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) {
+ /*
+ * write() the buffer
+ */
+ STDCHAR *buf = b->buf;
+ STDCHAR *p = buf;
+ PerlIO *n = PerlIONext(f);
+ while (p < b->ptr) {
+ SSize_t count = PerlIO_write(n, p, b->ptr - p);
+ if (count > 0) {
+ p += count;
+ }
+ else if (count < 0 || PerlIO_error(n)) {
+ PerlIOBase(f)->flags |= PERLIO_F_ERROR;
+ code = -1;
+ break;
+ }
+ }
+ 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 - buf);
+ if (b->ptr < b->end) {
+ /*
+ * We did not consume all of it
+ */
+ if (PerlIO_seek(PerlIONext(f), b->posn, SEEK_SET) == 0) {
+ b->posn = PerlIO_tell(PerlIONext(f));
+ }
+ }
+ }
+ 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;
}
IV
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;
-
- b->ptr = b->end = b->buf;
- 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)
- PerlIOBase(f)->flags |= PERLIO_F_EOF;
- else
- PerlIOBase(f)->flags |= PERLIO_F_ERROR;
- return -1;
- }
- b->end = b->buf+avail;
- PerlIOBase(f)->flags |= PERLIO_F_RDBUF;
- return 0;
+ 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;
+ 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)
+ PerlIOBase(f)->flags |= PERLIO_F_EOF;
+ else
+ PerlIOBase(f)->flags |= PERLIO_F_ERROR;
+ return -1;
+ }
+ b->end = b->buf + avail;
+ PerlIOBase(f)->flags |= PERLIO_F_RDBUF;
+ return 0;
}
SSize_t
PerlIOBuf_read(PerlIO *f, void *vbuf, Size_t count)
{
- PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
- STDCHAR *buf = (STDCHAR *) vbuf;
- if (f)
- {
- if (!b->ptr)
- PerlIO_get_base(f);
- if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD))
+ PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf);
+ if (f) {
+ if (!b->ptr)
+ PerlIO_get_base(f);
+ return PerlIOBase_read(f, vbuf, count);
+ }
return 0;
- while (count > 0)
- {
- SSize_t avail = PerlIO_get_cnt(f);
- SSize_t 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;
}
SSize_t
PerlIOBuf_unread(PerlIO *f, const void *vbuf, Size_t count)
{
- const STDCHAR *buf = (const STDCHAR *) vbuf+count;
- PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
- SSize_t unread = 0;
- SSize_t avail;
- 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)
- {
- avail = (b->ptr - b->buf);
- }
- else
- {
- avail = b->bufsiz;
- 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,STDCHAR);
- }
- count -= avail;
- unread += avail;
- PerlIOBase(f)->flags &= ~ PERLIO_F_EOF;
- }
- }
- return unread;
+ const STDCHAR *buf = (const STDCHAR *) vbuf + count;
+ PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf);
+ SSize_t unread = 0;
+ SSize_t avail;
+ 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) {
+ /*
+ * Buffer is already a read buffer, we can overwrite any chars
+ * which have been read back to buffer start
+ */
+ avail = (b->ptr - b->buf);
+ }
+ else {
+ /*
+ * Buffer is idle, set it up so whole buffer is available for
+ * unread
+ */
+ avail = b->bufsiz;
+ b->end = b->buf + avail;
+ b->ptr = b->end;
+ PerlIOBase(f)->flags |= PERLIO_F_RDBUF;
+ /*
+ * Buffer extends _back_ from where we are now
+ */
+ b->posn -= b->bufsiz;
+ }
+ if (avail > (SSize_t) count) {
+ /*
+ * If we have space for more than count, just move count
+ */
+ avail = count;
+ }
+ if (avail > 0) {
+ b->ptr -= avail;
+ buf -= avail;
+ /*
+ * In simple stdio-like ungetc() case chars will be already
+ * there
+ */
+ if (buf != b->ptr) {
+ Copy(buf, b->ptr, avail, STDCHAR);
+ }
+ count -= avail;
+ unread += avail;
+ PerlIOBase(f)->flags &= ~PERLIO_F_EOF;
+ }
+ }
+ return unread;
}
SSize_t
PerlIOBuf_write(PerlIO *f, const void *vbuf, Size_t count)
{
- PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
- const STDCHAR *buf = (const STDCHAR *) vbuf;
- Size_t written = 0;
- if (!b->buf)
- PerlIO_get_base(f);
- if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE))
- return 0;
- while (count > 0)
- {
- SSize_t avail = b->bufsiz - (b->ptr - b->buf);
- if ((SSize_t) count < avail)
- avail = count;
- PerlIOBase(f)->flags |= PERLIO_F_WRBUF;
- if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF)
- {
- while (avail > 0)
- {
- int ch = *buf++;
- *(b->ptr)++ = ch;
- count--;
- avail--;
- written++;
- if (ch == '\n')
- {
- PerlIO_flush(f);
- break;
- }
- }
- }
- else
- {
- if (avail)
- {
- Copy(buf,b->ptr,avail,STDCHAR);
- count -= avail;
- buf += avail;
- written += avail;
- b->ptr += avail;
- }
- }
- if (b->ptr >= (b->buf + b->bufsiz))
- PerlIO_flush(f);
- }
- if (PerlIOBase(f)->flags & PERLIO_F_UNBUF)
- PerlIO_flush(f);
- return written;
+ PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf);
+ const STDCHAR *buf = (const STDCHAR *) vbuf;
+ Size_t written = 0;
+ if (!b->buf)
+ PerlIO_get_base(f);
+ if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE))
+ return 0;
+ while (count > 0) {
+ SSize_t avail = b->bufsiz - (b->ptr - b->buf);
+ if ((SSize_t) count < avail)
+ avail = count;
+ PerlIOBase(f)->flags |= PERLIO_F_WRBUF;
+ if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) {
+ while (avail > 0) {
+ int ch = *buf++;
+ *(b->ptr)++ = ch;
+ count--;
+ avail--;
+ written++;
+ if (ch == '\n') {
+ PerlIO_flush(f);
+ break;
+ }
+ }
+ }
+ else {
+ if (avail) {
+ Copy(buf, b->ptr, avail, STDCHAR);
+ count -= avail;
+ buf += avail;
+ written += avail;
+ b->ptr += 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)
{
- 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)
- {
- b->posn = PerlIO_tell(PerlIONext(f));
+ 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) {
+ b->posn = PerlIO_tell(PerlIONext(f));
+ }
}
- }
- return code;
+ return code;
}
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;
+ PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf);
+ /*
+ * b->posn is file position where b->buf was read, or will be written
+ */
+ Off_t posn = b->posn;
+ if (b->buf) {
+ /*
+ * If buffer is valid adjust position by amount in buffer
+ */
+ 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;
-}
-
-void
-PerlIOBuf_setlinebuf(PerlIO *f)
-{
- if (f)
- {
- PerlIOBase(f)->flags &= ~PERLIO_F_LINEBUF;
- }
+ 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);
+ return code;
}
STDCHAR *
PerlIOBuf_get_ptr(PerlIO *f)
{
- PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
- if (!b->buf)
- PerlIO_get_base(f);
- return b->ptr;
+ 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;
+ 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);
+ PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf);
+ if (!b->buf) {
+ if (!b->bufsiz)
+ b->bufsiz = 4096;
+ b->buf =
+ Newz('B',b->buf,b->bufsiz, STDCHAR);
+ if (!b->buf) {
+ b->buf = (STDCHAR *) & b->oneword;
+ b->bufsiz = sizeof(b->oneword);
+ }
+ b->ptr = b->buf;
+ b->end = b->ptr;
}
- b->ptr = b->buf;
- b->end = b->ptr;
- }
- return b->buf;
+ 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);
+ 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_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 *
+PerlIOBuf_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param)
{
- 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;
+ return PerlIOBase_dup(aTHX_ f, o, param);
}
+
+
PerlIO_funcs PerlIO_perlio = {
- "perlio",
- sizeof(PerlIOBuf),
- PERLIO_K_BUFFERED,
- PerlIOBase_fileno,
- PerlIOBuf_fdopen,
- PerlIOBuf_open,
- PerlIOBuf_reopen,
- PerlIOBuf_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,
+ "perlio",
+ sizeof(PerlIOBuf),
+ PERLIO_K_BUFFERED,
+ PerlIOBuf_pushed,
+ PerlIOBase_noop_ok,
+ PerlIOBuf_open,
+ NULL,
+ PerlIOBase_fileno,
+ PerlIOBuf_dup,
+ 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 */
+/*
+ * 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;
+ /*
+ * 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);
+ /*
+ * 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);
+ /*
+ * 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)
{
- PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
- if (b->buf && b->buf != (STDCHAR *) &b->oneword)
- {
- dTHX;
- PerlMemShared_free(b->buf);
- b->buf = NULL;
- }
- PerlIO_pop(f);
- return 0;
+ dTHX;
+ PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf);
+ if (b->buf && b->buf != (STDCHAR *) & b->oneword) {
+ Safefree(b->buf);
+ b->buf = NULL;
+ }
+ PerlIO_pop(aTHX_ f);
+ return 0;
}
void
-PerlIOPending_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt)
+PerlIOPending_set_ptrcnt(PerlIO *f, STDCHAR * ptr, SSize_t cnt)
{
- if (cnt <= 0)
- {
- PerlIO_flush(f);
- }
- else
- {
- PerlIOBuf_set_ptrcnt(f,ptr,cnt);
- }
+ if (cnt <= 0) {
+ PerlIO_flush(f);
+ }
+ else {
+ PerlIOBuf_set_ptrcnt(f, ptr, cnt);
+ }
}
IV
-PerlIOPending_pushed(PerlIO *f,const char *mode)
+PerlIOPending_pushed(PerlIO *f, const char *mode, SV *arg)
{
- IV code = PerlIOBuf_pushed(f,mode);
- 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) |
- (PerlIOBase(PerlIONext(f))->flags & PERLIO_F_FASTGETS);
- return code;
+ 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 < count)
- got += PerlIO_read(f,((STDCHAR *) vbuf)+got,count-got);
- return got;
+ 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,
- PerlIOBase_fileno,
- NULL,
- NULL,
- NULL,
- PerlIOPending_pushed,
- PerlIOBase_noop_ok,
- PerlIOPending_read,
- PerlIOBuf_unread,
- PerlIOBuf_write,
- PerlIOPending_seek,
- PerlIOBuf_tell,
- PerlIOPending_close,
- PerlIOPending_flush,
- PerlIOPending_fill,
- PerlIOBase_eof,
- PerlIOBase_error,
- PerlIOBase_clearerr,
- PerlIOBuf_setlinebuf,
- PerlIOBuf_get_base,
- PerlIOBuf_bufsiz,
- PerlIOBuf_get_ptr,
- PerlIOBuf_get_cnt,
- PerlIOPending_set_ptrcnt,
+ "pending",
+ sizeof(PerlIOBuf),
+ PERLIO_K_BUFFERED,
+ PerlIOPending_pushed,
+ PerlIOBase_noop_ok,
+ NULL,
+ NULL,
+ PerlIOBase_fileno,
+ PerlIOBuf_dup,
+ 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
+/*
+ * 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 base; /* PerlIOBuf stuff */
- STDCHAR *nl; /* Position of crlf we "lied" about in the buffer */
+typedef struct {
+ PerlIOBuf base; /* PerlIOBuf stuff */
+ STDCHAR *nl; /* Position of crlf we "lied" about in the
+ * buffer */
} PerlIOCrlf;
IV
-PerlIOCrlf_pushed(PerlIO *f, const char *mode)
+PerlIOCrlf_pushed(PerlIO *f, const char *mode, SV *arg)
{
- IV code;
- PerlIOBase(f)->flags |= PERLIO_F_CRLF;
- code = PerlIOBuf_pushed(f,mode);
+ 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);
+ 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;
+ return code;
}
SSize_t
PerlIOCrlf_unread(PerlIO *f, const void *vbuf, Size_t count)
{
- PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf);
- if (c->nl)
- {
- *(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;
- }
+ PerlIOCrlf *c = PerlIOSelf(f, PerlIOCrlf);
+ if (c->nl) {
+ *(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;
+ }
}
SSize_t
PerlIOCrlf_get_cnt(PerlIO *f)
{
- PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
- if (!b->buf)
- PerlIO_get_base(f);
- if (PerlIOBase(f)->flags & PERLIO_F_RDBUF)
- {
- 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;
+ PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf);
+ if (!b->buf)
+ PerlIO_get_base(f);
+ if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) {
+ 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;
+ 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;
}
void
-PerlIOCrlf_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt)
-{
- 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 (c->nl)
- ptr = c->nl+1;
- else
- {
- ptr = b->end;
- if ((flags & PERLIO_F_CRLF) && ptr > b->buf && ptr[-1] == 0xd)
- ptr--;
- }
- ptr -= cnt;
- }
- 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;
+PerlIOCrlf_set_ptrcnt(PerlIO *f, STDCHAR * ptr, SSize_t cnt)
+{
+ 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 (c->nl)
+ ptr = c->nl + 1;
+ else {
+ ptr = b->end;
+ if ((flags & PERLIO_F_CRLF) && ptr > b->buf && ptr[-1] == 0xd)
+ ptr--;
+ }
+ ptr -= cnt;
+ }
+ 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;
}
SSize_t
PerlIOCrlf_write(PerlIO *f, const void *vbuf, Size_t count)
{
- 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);
- }
+ 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);
+ }
}
IV
PerlIOCrlf_flush(PerlIO *f)
{
- PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf);
- if (c->nl)
- {
- *(c->nl) = 0xd;
- c->nl = NULL;
- }
- return PerlIOBuf_flush(f);
+ PerlIOCrlf *c = PerlIOSelf(f, PerlIOCrlf);
+ if (c->nl) {
+ *(c->nl) = 0xd;
+ c->nl = NULL;
+ }
+ return PerlIOBuf_flush(f);
}
PerlIO_funcs PerlIO_crlf = {
- "crlf",
- sizeof(PerlIOCrlf),
- PERLIO_K_BUFFERED|PERLIO_K_CANCRLF,
- PerlIOBase_fileno,
- PerlIOBuf_fdopen,
- PerlIOBuf_open,
- PerlIOBuf_reopen,
- PerlIOCrlf_pushed,
- PerlIOBase_noop_ok, /* popped */
- 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,
- PerlIOCrlf_flush,
- PerlIOBuf_fill,
- PerlIOBase_eof,
- PerlIOBase_error,
- PerlIOBase_clearerr,
- PerlIOBuf_setlinebuf,
- PerlIOBuf_get_base,
- PerlIOBuf_bufsiz,
- PerlIOBuf_get_ptr,
- PerlIOCrlf_get_cnt,
- PerlIOCrlf_set_ptrcnt,
+ "crlf",
+ sizeof(PerlIOCrlf),
+ PERLIO_K_BUFFERED | PERLIO_K_CANCRLF,
+ PerlIOCrlf_pushed,
+ PerlIOBase_noop_ok, /* popped */
+ PerlIOBuf_open,
+ NULL,
+ PerlIOBase_fileno,
+ PerlIOBuf_dup,
+ 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,
+ PerlIOCrlf_flush,
+ PerlIOBuf_fill,
+ PerlIOBase_eof,
+ PerlIOBase_error,
+ PerlIOBase_clearerr,
+ PerlIOBase_setlinebuf,
+ PerlIOBuf_get_base,
+ PerlIOBuf_bufsiz,
+ PerlIOBuf_get_ptr,
+ PerlIOCrlf_get_cnt,
+ PerlIOCrlf_set_ptrcnt,
};
#ifdef HAS_MMAP
/*--------------------------------------------------------------------------------------*/
-/* mmap as "buffer" layer */
+/*
+ * mmap as "buffer" layer
+ */
-typedef struct
-{
- PerlIOBuf base; /* PerlIOBuf stuff */
- Mmap_t mptr; /* Mapped address */
- Size_t len; /* mapped length */
- STDCHAR *bbuf; /* malloced buffer if map fails */
+typedef struct {
+ PerlIOBuf base; /* PerlIOBuf stuff */
+ Mmap_t mptr; /* Mapped address */
+ Size_t len; /* mapped length */
+ STDCHAR *bbuf; /* malloced buffer if map fails */
} PerlIOMmap;
static size_t page_size = 0;
IV
PerlIOMmap_map(PerlIO *f)
{
- dTHX;
- PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap);
- PerlIOBuf *b = &m->base;
- IV flags = PerlIOBase(f)->flags;
- IV code = 0;
- if (m->len)
- abort();
- if (flags & PERLIO_F_CANREAD)
- {
- PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
- int fd = PerlIO_fileno(f);
- struct stat st;
- code = fstat(fd,&st);
- if (code == 0 && S_ISREG(st.st_mode))
- {
- SSize_t len = st.st_size - b->posn;
- if (len > 0)
- {
- Off_t posn;
- if (!page_size) {
+ dTHX;
+ PerlIOMmap *m = PerlIOSelf(f, PerlIOMmap);
+ IV flags = PerlIOBase(f)->flags;
+ IV code = 0;
+ if (m->len)
+ abort();
+ if (flags & PERLIO_F_CANREAD) {
+ PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf);
+ int fd = PerlIO_fileno(f);
+ struct stat st;
+ code = fstat(fd, &st);
+ if (code == 0 && S_ISREG(st.st_mode)) {
+ SSize_t len = st.st_size - b->posn;
+ if (len > 0) {
+ Off_t posn;
+ if (!page_size) {
#if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_PAGE_SIZE))
- {
- SETERRNO(0,SS$_NORMAL);
+ {
+ SETERRNO(0, SS$_NORMAL);
# ifdef _SC_PAGESIZE
- page_size = sysconf(_SC_PAGESIZE);
+ page_size = sysconf(_SC_PAGESIZE);
# else
- page_size = sysconf(_SC_PAGE_SIZE);
+ page_size = sysconf(_SC_PAGE_SIZE);
# endif
- if ((long)page_size < 0) {
- if (errno) {
- SV *error = ERRSV;
- char *msg;
- STRLEN n_a;
- (void)SvUPGRADE(error, SVt_PV);
- msg = SvPVx(error, n_a);
- Perl_croak(aTHX_ "panic: sysconf: %s", msg);
- }
- else
- Perl_croak(aTHX_ "panic: sysconf: pagesize unknown");
- }
- }
+ if ((long) page_size < 0) {
+ if (errno) {
+ SV *error = ERRSV;
+ char *msg;
+ STRLEN n_a;
+ (void) SvUPGRADE(error, SVt_PV);
+ msg = SvPVx(error, n_a);
+ Perl_croak(aTHX_ "panic: sysconf: %s",
+ msg);
+ }
+ else
+ Perl_croak(aTHX_
+ "panic: sysconf: pagesize unknown");
+ }
+ }
#else
# ifdef HAS_GETPAGESIZE
- page_size = getpagesize();
+ page_size = getpagesize();
# else
# if defined(I_SYS_PARAM) && defined(PAGESIZE)
- page_size = PAGESIZE; /* compiletime, bad */
+ page_size = PAGESIZE; /* compiletime, bad */
# endif
# endif
#endif
- if ((IV)page_size <= 0)
- Perl_croak(aTHX_ "panic: bad pagesize %"IVdf, (IV)page_size);
- }
- if (b->posn < 0)
- {
- /* This is a hack - should never happen - open should have set it ! */
- b->posn = PerlIO_tell(PerlIONext(f));
- }
- posn = (b->posn / page_size) * page_size;
- len = st.st_size - posn;
- m->mptr = mmap(NULL, len, PROT_READ, MAP_PRIVATE, fd, posn);
- if (m->mptr && m->mptr != (Mmap_t) -1)
- {
-#if defined(HAS_MADVISE) && defined(MADV_SEQUENTIAL)
- madvise(m->mptr, len, MADV_SEQUENTIAL);
+ if ((IV) page_size <= 0)
+ Perl_croak(aTHX_ "panic: bad pagesize %" IVdf,
+ (IV) page_size);
+ }
+ if (b->posn < 0) {
+ /*
+ * This is a hack - should never happen - open should
+ * have set it !
+ */
+ b->posn = PerlIO_tell(PerlIONext(f));
+ }
+ posn = (b->posn / page_size) * page_size;
+ len = st.st_size - posn;
+ m->mptr = mmap(NULL, len, PROT_READ, MAP_SHARED, fd, posn);
+ if (m->mptr && m->mptr != (Mmap_t) - 1) {
+#if 0 && defined(HAS_MADVISE) && defined(MADV_SEQUENTIAL)
+ madvise(m->mptr, len, MADV_SEQUENTIAL);
#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);
- b->ptr = b->buf;
- m->len = len;
- }
- else
- {
- b->buf = NULL;
- }
- }
- else
- {
- PerlIOBase(f)->flags = flags | PERLIO_F_EOF | PERLIO_F_RDBUF;
- b->buf = NULL;
- b->ptr = b->end = b->ptr;
- code = -1;
- }
- }
- }
- return code;
+#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);
+ b->ptr = b->buf;
+ m->len = len;
+ }
+ else {
+ b->buf = NULL;
+ }
+ }
+ else {
+ PerlIOBase(f)->flags =
+ flags | PERLIO_F_EOF | PERLIO_F_RDBUF;
+ b->buf = NULL;
+ b->ptr = b->end = b->ptr;
+ code = -1;
+ }
+ }
+ }
+ return code;
}
IV
PerlIOMmap_unmap(PerlIO *f)
{
- PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap);
- PerlIOBuf *b = &m->base;
- IV code = 0;
- if (m->len)
- {
- if (b->buf)
- {
- code = munmap(m->mptr, m->len);
- b->buf = NULL;
- m->len = 0;
- m->mptr = NULL;
- if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) != 0)
- code = -1;
- }
- b->ptr = b->end = b->buf;
- PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF);
- }
- return code;
+ PerlIOMmap *m = PerlIOSelf(f, PerlIOMmap);
+ PerlIOBuf *b = &m->base;
+ IV code = 0;
+ if (m->len) {
+ if (b->buf) {
+ code = munmap(m->mptr, m->len);
+ b->buf = NULL;
+ m->len = 0;
+ m->mptr = NULL;
+ if (PerlIO_seek(PerlIONext(f), b->posn, SEEK_SET) != 0)
+ code = -1;
+ }
+ b->ptr = b->end = b->buf;
+ PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF | PERLIO_F_WRBUF);
+ }
+ return code;
}
STDCHAR *
PerlIOMmap_get_base(PerlIO *f)
{
- PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap);
- PerlIOBuf *b = &m->base;
- if (b->buf && (PerlIOBase(f)->flags & PERLIO_F_RDBUF))
- {
- /* Already have a readbuffer in progress */
- return b->buf;
- }
- if (b->buf)
- {
- /* We have a write buffer or flushed PerlIOBuf read buffer */
- m->bbuf = b->buf; /* save it in case we need it again */
- b->buf = NULL; /* Clear to trigger below */
- }
- if (!b->buf)
- {
- PerlIOMmap_map(f); /* Try and map it */
- if (!b->buf)
- {
- /* Map did not work - recover PerlIOBuf buffer if we have one */
- b->buf = m->bbuf;
- }
- }
- b->ptr = b->end = b->buf;
- if (b->buf)
- return b->buf;
- return PerlIOBuf_get_base(f);
+ PerlIOMmap *m = PerlIOSelf(f, PerlIOMmap);
+ PerlIOBuf *b = &m->base;
+ if (b->buf && (PerlIOBase(f)->flags & PERLIO_F_RDBUF)) {
+ /*
+ * Already have a readbuffer in progress
+ */
+ return b->buf;
+ }
+ if (b->buf) {
+ /*
+ * We have a write buffer or flushed PerlIOBuf read buffer
+ */
+ m->bbuf = b->buf; /* save it in case we need it again */
+ b->buf = NULL; /* Clear to trigger below */
+ }
+ if (!b->buf) {
+ PerlIOMmap_map(f); /* Try and map it */
+ if (!b->buf) {
+ /*
+ * Map did not work - recover PerlIOBuf buffer if we have one
+ */
+ b->buf = m->bbuf;
+ }
+ }
+ b->ptr = b->end = b->buf;
+ if (b->buf)
+ return b->buf;
+ return PerlIOBuf_get_base(f);
}
SSize_t
PerlIOMmap_unread(PerlIO *f, const void *vbuf, Size_t count)
{
- PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap);
- PerlIOBuf *b = &m->base;
- if (PerlIOBase(f)->flags & PERLIO_F_WRBUF)
- PerlIO_flush(f);
- if (b->ptr && (b->ptr - count) >= b->buf && memEQ(b->ptr - count,vbuf,count))
- {
- b->ptr -= count;
- PerlIOBase(f)->flags &= ~ PERLIO_F_EOF;
- return count;
- }
- if (m->len)
- {
- /* Loose the unwritable mapped buffer */
- PerlIO_flush(f);
- /* If flush took the "buffer" see if we have one from before */
- if (!b->buf && m->bbuf)
- b->buf = m->bbuf;
- if (!b->buf)
- {
- PerlIOBuf_get_base(f);
- m->bbuf = b->buf;
- }
- }
-return PerlIOBuf_unread(f,vbuf,count);
+ PerlIOMmap *m = PerlIOSelf(f, PerlIOMmap);
+ PerlIOBuf *b = &m->base;
+ if (PerlIOBase(f)->flags & PERLIO_F_WRBUF)
+ PerlIO_flush(f);
+ if (b->ptr && (b->ptr - count) >= b->buf
+ && memEQ(b->ptr - count, vbuf, count)) {
+ b->ptr -= count;
+ PerlIOBase(f)->flags &= ~PERLIO_F_EOF;
+ return count;
+ }
+ if (m->len) {
+ /*
+ * Loose the unwritable mapped buffer
+ */
+ PerlIO_flush(f);
+ /*
+ * If flush took the "buffer" see if we have one from before
+ */
+ if (!b->buf && m->bbuf)
+ b->buf = m->bbuf;
+ if (!b->buf) {
+ PerlIOBuf_get_base(f);
+ m->bbuf = b->buf;
+ }
+ }
+ return PerlIOBuf_unread(f, vbuf, count);
}
SSize_t
PerlIOMmap_write(PerlIO *f, const void *vbuf, Size_t count)
{
- PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap);
- PerlIOBuf *b = &m->base;
- if (!b->buf || !(PerlIOBase(f)->flags & PERLIO_F_WRBUF))
- {
- /* No, or wrong sort of, buffer */
- if (m->len)
- {
- if (PerlIOMmap_unmap(f) != 0)
- return 0;
- }
- /* If unmap took the "buffer" see if we have one from before */
- if (!b->buf && m->bbuf)
- b->buf = m->bbuf;
- if (!b->buf)
- {
- PerlIOBuf_get_base(f);
- m->bbuf = b->buf;
+ PerlIOMmap *m = PerlIOSelf(f, PerlIOMmap);
+ PerlIOBuf *b = &m->base;
+ if (!b->buf || !(PerlIOBase(f)->flags & PERLIO_F_WRBUF)) {
+ /*
+ * No, or wrong sort of, buffer
+ */
+ if (m->len) {
+ if (PerlIOMmap_unmap(f) != 0)
+ return 0;
+ }
+ /*
+ * If unmap took the "buffer" see if we have one from before
+ */
+ if (!b->buf && m->bbuf)
+ b->buf = m->bbuf;
+ if (!b->buf) {
+ PerlIOBuf_get_base(f);
+ m->bbuf = b->buf;
+ }
}
- }
- return PerlIOBuf_write(f,vbuf,count);
+ return PerlIOBuf_write(f, vbuf, count);
}
IV
PerlIOMmap_flush(PerlIO *f)
{
- PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap);
- PerlIOBuf *b = &m->base;
- IV code = PerlIOBuf_flush(f);
- /* Now we are "synced" at PerlIOBuf level */
- if (b->buf)
- {
- if (m->len)
- {
- /* Unmap the buffer */
- if (PerlIOMmap_unmap(f) != 0)
- code = -1;
- }
- else
- {
- /* We seem to have a PerlIOBuf buffer which was not mapped
- * remember it in case we need one later
- */
- m->bbuf = b->buf;
- }
- }
- return code;
+ PerlIOMmap *m = PerlIOSelf(f, PerlIOMmap);
+ PerlIOBuf *b = &m->base;
+ IV code = PerlIOBuf_flush(f);
+ /*
+ * Now we are "synced" at PerlIOBuf level
+ */
+ if (b->buf) {
+ if (m->len) {
+ /*
+ * Unmap the buffer
+ */
+ if (PerlIOMmap_unmap(f) != 0)
+ code = -1;
+ }
+ else {
+ /*
+ * We seem to have a PerlIOBuf buffer which was not mapped
+ * remember it in case we need one later
+ */
+ m->bbuf = b->buf;
+ }
+ }
+ return code;
}
IV
PerlIOMmap_fill(PerlIO *f)
{
- PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf);
- IV code = PerlIO_flush(f);
- if (code == 0 && !b->buf)
- {
- code = PerlIOMmap_map(f);
- }
- if (code == 0 && !(PerlIOBase(f)->flags & PERLIO_F_RDBUF))
- {
- code = PerlIOBuf_fill(f);
- }
- return code;
+ PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf);
+ IV code = PerlIO_flush(f);
+ if (code == 0 && !b->buf) {
+ code = PerlIOMmap_map(f);
+ }
+ if (code == 0 && !(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) {
+ code = PerlIOBuf_fill(f);
+ }
+ return code;
}
IV
PerlIOMmap_close(PerlIO *f)
{
- PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap);
- PerlIOBuf *b = &m->base;
- IV code = PerlIO_flush(f);
- if (m->bbuf)
- {
- b->buf = m->bbuf;
- m->bbuf = NULL;
- b->ptr = b->end = b->buf;
- }
- if (PerlIOBuf_close(f) != 0)
- code = -1;
- return code;
+ PerlIOMmap *m = PerlIOSelf(f, PerlIOMmap);
+ PerlIOBuf *b = &m->base;
+ IV code = PerlIO_flush(f);
+ if (m->bbuf) {
+ b->buf = m->bbuf;
+ m->bbuf = NULL;
+ b->ptr = b->end = b->buf;
+ }
+ if (PerlIOBuf_close(f) != 0)
+ code = -1;
+ return code;
+}
+
+PerlIO *
+PerlIOMmap_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *param)
+{
+ return PerlIOBase_dup(aTHX_ f, o, param);
}
PerlIO_funcs PerlIO_mmap = {
- "mmap",
- sizeof(PerlIOMmap),
- PERLIO_K_BUFFERED,
- PerlIOBase_fileno,
- PerlIOBuf_fdopen,
- PerlIOBuf_open,
- PerlIOBuf_reopen,
- PerlIOBuf_pushed,
- PerlIOBase_noop_ok,
- PerlIOBuf_read,
- PerlIOMmap_unread,
- PerlIOMmap_write,
- PerlIOBuf_seek,
- PerlIOBuf_tell,
- PerlIOBuf_close,
- PerlIOMmap_flush,
- PerlIOMmap_fill,
- PerlIOBase_eof,
- PerlIOBase_error,
- PerlIOBase_clearerr,
- PerlIOBuf_setlinebuf,
- PerlIOMmap_get_base,
- PerlIOBuf_bufsiz,
- PerlIOBuf_get_ptr,
- PerlIOBuf_get_cnt,
- PerlIOBuf_set_ptrcnt,
+ "mmap",
+ sizeof(PerlIOMmap),
+ PERLIO_K_BUFFERED,
+ PerlIOBuf_pushed,
+ PerlIOBase_noop_ok,
+ PerlIOBuf_open,
+ NULL,
+ PerlIOBase_fileno,
+ PerlIOMmap_dup,
+ PerlIOBuf_read,
+ PerlIOMmap_unread,
+ PerlIOMmap_write,
+ PerlIOBuf_seek,
+ PerlIOBuf_tell,
+ PerlIOBuf_close,
+ PerlIOMmap_flush,
+ PerlIOMmap_fill,
+ PerlIOBase_eof,
+ PerlIOBase_error,
+ PerlIOBase_clearerr,
+ PerlIOBase_setlinebuf,
+ PerlIOMmap_get_base,
+ PerlIOBuf_bufsiz,
+ PerlIOBuf_get_ptr,
+ PerlIOBuf_get_cnt,
+ PerlIOBuf_set_ptrcnt,
};
-#endif /* HAS_MMAP */
+#endif /* HAS_MMAP */
void
-PerlIO_init(void)
+PerlIO_init(pTHX)
{
- if (!_perlio)
- {
- atexit(&PerlIO_cleanup);
- }
+ /* Place holder for stdstreams call ??? */
}
#undef PerlIO_stdin
PerlIO *
PerlIO_stdin(void)
{
- if (!_perlio)
- PerlIO_stdstreams();
- return &_perlio[1];
+ dTHX;
+ if (!PL_perlio) {
+ PerlIO_stdstreams(aTHX);
+ }
+ return &PL_perlio[1];
}
#undef PerlIO_stdout
PerlIO *
PerlIO_stdout(void)
{
- if (!_perlio)
- PerlIO_stdstreams();
- return &_perlio[2];
+ dTHX;
+ if (!PL_perlio) {
+ PerlIO_stdstreams(aTHX);
+ }
+ return &PL_perlio[2];
}
#undef PerlIO_stderr
PerlIO *
PerlIO_stderr(void)
{
- if (!_perlio)
- PerlIO_stdstreams();
- return &_perlio[3];
+ dTHX;
+ if (!PL_perlio) {
+ PerlIO_stdstreams(aTHX);
+ }
+ return &PL_perlio[3];
}
/*--------------------------------------------------------------------------------------*/
char *
PerlIO_getname(PerlIO *f, char *buf)
{
- dTHX;
- Perl_croak(aTHX_ "Don't know how to get file name");
- return NULL;
+ dTHX;
+ char *name = NULL;
+#ifdef VMS
+ FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio;
+ if (stdio)
+ name = fgetname(stdio, buf);
+#else
+ Perl_croak(aTHX_ "Don't know how to get file name");
+#endif
+ return name;
}
/*--------------------------------------------------------------------------------------*/
-/* Functions which can be called on any kind of PerlIO implemented
- in terms of above
-*/
+/*
+ * Functions which can be called on any kind of PerlIO implemented in
+ * terms of above
+ */
#undef PerlIO_getc
int
PerlIO_getc(PerlIO *f)
{
- STDCHAR buf[1];
- SSize_t count = PerlIO_read(f,buf,1);
- if (count == 1)
- {
- return (unsigned char) buf[0];
- }
- return EOF;
+ STDCHAR buf[1];
+ SSize_t count = PerlIO_read(f, buf, 1);
+ if (count == 1) {
+ return (unsigned char) buf[0];
+ }
+ return EOF;
}
#undef PerlIO_ungetc
int
PerlIO_ungetc(PerlIO *f, int ch)
{
- if (ch != EOF)
- {
- STDCHAR buf = ch;
- if (PerlIO_unread(f,&buf,1) == 1)
- return ch;
- }
- return EOF;
+ if (ch != EOF) {
+ STDCHAR buf = ch;
+ if (PerlIO_unread(f, &buf, 1) == 1)
+ return ch;
+ }
+ return EOF;
}
#undef PerlIO_putc
int
PerlIO_putc(PerlIO *f, int ch)
{
- STDCHAR buf = ch;
- return PerlIO_write(f,&buf,1);
+ STDCHAR buf = ch;
+ return PerlIO_write(f, &buf, 1);
}
#undef PerlIO_puts
int
PerlIO_puts(PerlIO *f, const char *s)
{
- STRLEN len = strlen(s);
- return PerlIO_write(f,s,len);
+ STRLEN len = strlen(s);
+ return PerlIO_write(f, s, len);
}
#undef PerlIO_rewind
void
PerlIO_rewind(PerlIO *f)
{
- PerlIO_seek(f,(Off_t)0,SEEK_SET);
- PerlIO_clearerr(f);
+ PerlIO_seek(f, (Off_t) 0, SEEK_SET);
+ PerlIO_clearerr(f);
}
#undef PerlIO_vprintf
int
PerlIO_vprintf(PerlIO *f, const char *fmt, va_list ap)
{
- dTHX;
- SV *sv = newSVpvn("",0);
- char *s;
- STRLEN len;
+ dTHX;
+ 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, &apc);
+ va_list apc;
+ Perl_va_copy(ap, apc);
+ sv_vcatpvf(sv, fmt, &apc);
#else
- sv_vcatpvf(sv, fmt, &ap);
+ sv_vcatpvf(sv, fmt, &ap);
#endif
- s = SvPV(sv,len);
- return PerlIO_write(f,s,len);
+ s = SvPV(sv, len);
+ wrote = PerlIO_write(f, s, len);
+ SvREFCNT_dec(sv);
+ return wrote;
}
#undef PerlIO_printf
int
-PerlIO_printf(PerlIO *f,const char *fmt,...)
+PerlIO_printf(PerlIO *f, const char *fmt, ...)
{
- va_list ap;
- int result;
- va_start(ap,fmt);
- result = PerlIO_vprintf(f,fmt,ap);
- va_end(ap);
- return result;
+ va_list ap;
+ int result;
+ va_start(ap, fmt);
+ result = PerlIO_vprintf(f, fmt, ap);
+ va_end(ap);
+ return result;
}
#undef PerlIO_stdoutf
int
-PerlIO_stdoutf(const char *fmt,...)
+PerlIO_stdoutf(const char *fmt, ...)
{
- va_list ap;
- int result;
- va_start(ap,fmt);
- result = PerlIO_vprintf(PerlIO_stdout(),fmt,ap);
- va_end(ap);
- return result;
+ va_list ap;
+ int result;
+ va_start(ap, fmt);
+ result = PerlIO_vprintf(PerlIO_stdout(), fmt, ap);
+ va_end(ap);
+ return result;
}
#undef PerlIO_tmpfile
PerlIO *
PerlIO_tmpfile(void)
{
- /* I have no idea how portable mkstemp() is ... */
+ /*
+ * 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(f = PerlIO_allocate(aTHX),&PerlIO_stdio,"w+"),PerlIOStdio);
- s->stdio = stdio;
- }
- return f;
+ 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;
- if (fd >= 0)
- {
- f = PerlIO_fdopen(fd,"w+");
- if (f)
- {
- PerlIOBase(f)->flags |= PERLIO_F_TEMP;
- }
- PerlLIO_unlink(SvPVX(sv));
- SvREFCNT_dec(sv);
- }
- return f;
+ dTHX;
+ SV *sv = newSVpv("/tmp/PerlIO_XXXXXX", 0);
+ int fd = mkstemp(SvPVX(sv));
+ PerlIO *f = NULL;
+ if (fd >= 0) {
+ f = PerlIO_fdopen(fd, "w+");
+ if (f) {
+ PerlIOBase(f)->flags |= PERLIO_F_TEMP;
+ }
+ PerlLIO_unlink(SvPVX(sv));
+ SvREFCNT_dec(sv);
+ }
+ return f;
#endif
}
#undef HAS_FSETPOS
#undef HAS_FGETPOS
-#endif /* USE_SFIO */
-#endif /* PERLIO_IS_STDIO */
+#endif /* USE_SFIO */
+#endif /* PERLIO_IS_STDIO */
/*======================================================================================*/
-/* Now some functions in terms of above which may be needed even if
- we are not in true PerlIO mode
+/*
+ * Now some functions in terms of above which may be needed even if we are
+ * not in true PerlIO mode
*/
#ifndef HAS_FSETPOS
#undef PerlIO_setpos
int
-PerlIO_setpos(PerlIO *f, const Fpos_t *pos)
-{
- return PerlIO_seek(f,*pos,0);
+PerlIO_setpos(PerlIO *f, SV *pos)
+{
+ 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)
vprintf(char *pat, char *args)
{
_doprnt(pat, args, stdout);
- return 0; /* wrong, but perl doesn't use the return value */
+ return 0; /* wrong, but perl doesn't use the return
+ * value */
}
int
vfprintf(FILE *fd, char *pat, char *args)
{
_doprnt(pat, args, fd);
- return 0; /* wrong, but perl doesn't use the return value */
+ return 0; /* wrong, but perl doesn't use the return
+ * value */
}
#endif
int
PerlIO_vsprintf(char *s, int n, const char *fmt, va_list ap)
{
- int val = vsprintf(s, fmt, ap);
- if (n >= 0)
- {
- if (strlen(s) >= (STRLEN)n)
- {
- dTHX;
- (void)PerlIO_puts(Perl_error_log,
- "panic: sprintf overflow - memory corrupted!\n");
- my_exit(1);
+ int val = vsprintf(s, fmt, ap);
+ if (n >= 0) {
+ if (strlen(s) >= (STRLEN) n) {
+ dTHX;
+ (void) PerlIO_puts(Perl_error_log,
+ "panic: sprintf overflow - memory corrupted!\n");
+ my_exit(1);
+ }
}
- }
- return val;
+ return val;
}
#endif
#ifndef PerlIO_sprintf
int
-PerlIO_sprintf(char *s, int n, const char *fmt,...)
+PerlIO_sprintf(char *s, int n, const char *fmt, ...)
{
- va_list ap;
- int result;
- va_start(ap,fmt);
- result = PerlIO_vsprintf(s, n, fmt, ap);
- va_end(ap);
- return result;
+ va_list ap;
+ int result;
+ va_start(ap, fmt);
+ result = PerlIO_vsprintf(s, n, fmt, ap);
+ va_end(ap);
+ return result;
}
#endif
-
https://perl5.git.perl.org / perl5.git / blobdiff