#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;
+}
+#endif
+
#if !defined(PERL_IMPLICIT_SYS)
#ifdef PERLIO_IS_STDIO
}
}
-#undef PerlIO_close
-int
-PerlIO_close(PerlIO *f)
-{
- int code = (*PerlIOBase(f)->tab->Close)(f);
- while (*f)
- {
- PerlIO_pop(f);
- }
- return code;
-}
-
-
/*--------------------------------------------------------------------------------------*/
-/* Given the abstraction above the public API functions */
-
-#undef PerlIO_fileno
-int
-PerlIO_fileno(PerlIO *f)
-{
- return (*PerlIOBase(f)->tab->Fileno)(f);
-}
+/* XS Interface for perl code */
XS(XS_perlio_import)
{
}
SV *
-PerlIO_find_layer(char *name, STRLEN len)
+PerlIO_find_layer(const char *name, STRLEN len)
{
dTHX;
SV **svp;
return NULL;
}
+
+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 %_ %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 %_ %p %p %p",sv,io,ifp,ofp);
+ }
+ return 0;
+}
+
+static int
+perlio_mg_clear(pTHX_ SV *sv, MAGIC *mg)
+{
+ Perl_warn(aTHX_ "clear %_",sv);
+ return 0;
+}
+
+static int
+perlio_mg_free(pTHX_ SV *sv, MAGIC *mg)
+{
+ Perl_warn(aTHX_ "free %_",sv);
+ return 0;
+}
+
+MGVTBL perlio_vtab = {
+ perlio_mg_get,
+ perlio_mg_set,
+ NULL, /* len */
+ NULL,
+ 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 %_",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);
+}
+
void
PerlIO_define_layer(PerlIO_funcs *tab)
{
int len;
if (!PerlIO_layer_hv)
{
- char *s = PerlEnv_getenv("PERLIO");
+ const char *s = PerlEnv_getenv("PERLIO");
newXS("perlio::import",XS_perlio_import,__FILE__);
newXS("perlio::unimport",XS_perlio_unimport,__FILE__);
- PerlIO_layer_hv = get_hv("perlio::layers",GV_ADD|GV_ADDMULTI);
- PerlIO_layer_av = get_av("perlio::layers",GV_ADD|GV_ADDMULTI);
+#if 0
+ newXS("io::MODIFY_SCALAR_ATTRIBUTES",XS_io_MODIFY_SCALAR_ATTRIBUTES,__FILE__);
+#endif
+ PerlIO_layer_hv = get_hv("open::layers",GV_ADD|GV_ADDMULTI);
+ PerlIO_layer_av = get_av("open::layers",GV_ADD|GV_ADDMULTI);
PerlIO_define_layer(&PerlIO_unix);
PerlIO_define_layer(&PerlIO_perlio);
PerlIO_define_layer(&PerlIO_stdio);
+ PerlIO_define_layer(&PerlIO_crlf);
#ifdef HAS_MMAP
PerlIO_define_layer(&PerlIO_mmap);
#endif
s++;
if (*s)
{
- char *e = 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)
{
return tab;
}
+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)
+ {
+ 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\"",(e-s),s);
+ }
+ s = e;
+ }
+ }
+ }
+ return 0;
+}
+
#define PerlIO_default_top() PerlIO_default_layer(-1)
#define PerlIO_default_btm() PerlIO_default_layer(0)
return f;
}
+/*--------------------------------------------------------------------------------------*/
+/* Given the abstraction above the public API functions */
+
+#undef PerlIO_close
+int
+PerlIO_close(PerlIO *f)
+{
+ int code = (*PerlIOBase(f)->tab->Close)(f);
+ while (*f)
+ {
+ PerlIO_pop(f);
+ }
+ return code;
+}
+
+#undef PerlIO_fileno
+int
+PerlIO_fileno(PerlIO *f)
+{
+ return (*PerlIOBase(f)->tab->Fileno)(f);
+}
+
+
+
#undef PerlIO_fdopen
PerlIO *
PerlIO_fdopen(int fd, const char *mode)
PerlIOBuf_set_ptrcnt,
};
+/*--------------------------------------------------------------------------------------*/
+/* crlf - translation currently just a copy of perlio to prove
+ that extra buffering which real one will do is not an issue.
+ */
+
+PerlIO_funcs PerlIO_crlf = {
+ "crlf",
+ sizeof(PerlIOBuf),
+ 0,
+ PerlIOBase_fileno,
+ PerlIOBuf_fdopen,
+ PerlIOBuf_open,
+ PerlIOBuf_reopen,
+ PerlIOBase_pushed,
+ PerlIOBase_noop_ok,
+ PerlIOBuf_read,
+ PerlIOBuf_unread,
+ PerlIOBuf_write,
+ PerlIOBuf_seek,
+ PerlIOBuf_tell,
+ PerlIOBuf_close,
+ PerlIOBuf_flush,
+ PerlIOBuf_fill,
+ PerlIOBase_eof,
+ PerlIOBase_error,
+ PerlIOBase_clearerr,
+ PerlIOBuf_setlinebuf,
+ PerlIOBuf_get_base,
+ PerlIOBuf_bufsiz,
+ PerlIOBuf_get_ptr,
+ PerlIOBuf_get_cnt,
+ PerlIOBuf_set_ptrcnt,
+};
+
#ifdef HAS_MMAP
/*--------------------------------------------------------------------------------------*/
/* mmap as "buffer" layer */
projects / p5sagit/p5-mst-13.2.git / blobdiff