/* XSUB.h
*
- * Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999,
- * 2000, 2001, 2002, 2003, by Larry Wall and others
+ * Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+ * 2003, 2004, 2005, 2006, 2007 by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
Sets up the C<ax> variable.
This is usually handled automatically by C<xsubpp> by calling C<dXSARGS>.
+=for apidoc Ams||dAXMARK
+Sets up the C<ax> variable and stack marker variable C<mark>.
+This is usually handled automatically by C<xsubpp> by calling C<dXSARGS>.
+
=for apidoc Ams||dITEMS
Sets up the C<items> variable.
This is usually handled automatically by C<xsubpp> by calling C<dXSARGS>.
Sets up the C<ix> variable for an XSUB which has aliases. This is usually
handled automatically by C<xsubpp>.
+=for apidoc Ams||dUNDERBAR
+Sets up the C<padoff_du> variable for an XSUB that wishes to use
+C<UNDERBAR>.
+
+=for apidoc AmU||UNDERBAR
+The SV* corresponding to the $_ variable. Works even if there
+is a lexical $_ in scope.
+
=cut
*/
+#ifndef PERL_UNUSED_ARG
+# if defined(lint) && defined(S_SPLINT_S) /* www.splint.org */
+# include <note.h>
+# define PERL_UNUSED_ARG(x) NOTE(ARGUNUSED(x))
+# else
+# define PERL_UNUSED_ARG(x) ((void)x)
+# endif
+#endif
+#ifndef PERL_UNUSED_VAR
+# define PERL_UNUSED_VAR(x) ((void)x)
+#endif
+
#define ST(off) PL_stack_base[ax + (off)]
+#undef XS
#if defined(__CYGWIN__) && defined(USE_DYNAMIC_LOADING)
# define XS(name) __declspec(dllexport) void name(pTHX_ CV* cv)
-#else
-# define XS(name) void name(pTHX_ CV* cv)
+#endif
+#if defined(__SYMBIAN32__)
+# define XS(name) EXPORT_C void name(pTHX_ CV* cv)
+#endif
+#ifndef XS
+# if defined(HASATTRIBUTE_UNUSED) && !defined(__cplusplus)
+# define XS(name) void name(pTHX_ CV* cv __attribute__unused__)
+# else
+# ifdef __cplusplus
+# define XS(name) extern "C" void name(pTHX_ CV* cv)
+# else
+# define XS(name) void name(pTHX_ CV* cv)
+# endif
+# endif
#endif
-#define dAX I32 ax = MARK - PL_stack_base + 1
+#define dAX const I32 ax = (I32)(MARK - PL_stack_base + 1)
-#define dITEMS I32 items = SP - MARK
+#define dAXMARK \
+ I32 ax = POPMARK; \
+ register SV **mark = PL_stack_base + ax++
-#define dXSARGS \
- dSP; dMARK; \
- dAX; dITEMS
+#define dITEMS I32 items = (I32)(SP - MARK)
+
+#if defined(lint) && defined(S_SPLINT_S) /* www.splint.org */
+# define dXSARGS \
+ NOTE(ARGUNUSED(cv)) \
+ dSP; dAXMARK; dITEMS
+#else
+# define dXSARGS \
+ dSP; dAXMARK; dITEMS
+#endif
-#define dXSTARG SV * targ = ((PL_op->op_private & OPpENTERSUB_HASTARG) \
+#define dXSTARG SV * const targ = ((PL_op->op_private & OPpENTERSUB_HASTARG) \
? PAD_SV(PL_op->op_targ) : sv_newmortal())
/* Should be used before final PUSHi etc. if not in PPCODE section. */
#define XSINTERFACE_FUNC_SET(cv,f) \
CvXSUBANY(cv).any_dxptr = (void (*) (pTHX_ void*))(f)
+#define dUNDERBAR PADOFFSET padoff_du = find_rundefsvoffset()
+#define UNDERBAR ((padoff_du == NOT_IN_PAD \
+ || PAD_COMPNAME_FLAGS_isOUR(padoff_du)) \
+ ? DEFSV : PAD_SVl(padoff_du))
+
/* Simple macros to put new mortal values onto the stack. */
/* Typically used to return values from XS functions. */
=head1 Variables created by C<xsubpp> and C<xsubpp> internal functions
-=for apidoc AmU||newXSproto
+=for apidoc AmU||newXSproto|char* name|XSUBADDR_t f|char* filename|const char *proto
Used by C<xsubpp> to hook up XSUBs as Perl subs. Adds Perl prototypes to
the subs.
module's C<XS_VERSION> variable. This is usually handled automatically by
C<xsubpp>. See L<perlxs/"The VERSIONCHECK: Keyword">.
+=head1 Simple Exception Handling Macros
+
+=for apidoc Ams||dXCPT
+Set up necessary local variables for exception handling.
+See L<perlguts/"Exception Handling">.
+
+=for apidoc AmU||XCPT_TRY_START
+Starts a try block. See L<perlguts/"Exception Handling">.
+
+=for apidoc AmU||XCPT_TRY_END
+Ends a try block. See L<perlguts/"Exception Handling">.
+
+=for apidoc AmU||XCPT_CATCH
+Introduces a catch block. See L<perlguts/"Exception Handling">.
+
+=for apidoc Ams||XCPT_RETHROW
+Rethrows a previously caught exception. See L<perlguts/"Exception Handling">.
+
=cut
*/
#define XSRETURN_UNDEF STMT_START { XST_mUNDEF(0); XSRETURN(1); } STMT_END
#define XSRETURN_EMPTY STMT_START { XSRETURN(0); } STMT_END
-#define newXSproto(a,b,c,d) sv_setpv((SV*)newXS(a,b,c), d)
+#define newXSproto(a,b,c,d) newXS_flags(a,b,c,d,0)
#ifdef XS_VERSION
# define XS_VERSION_BOOTCHECK \
STMT_START { \
- SV *_sv; STRLEN n_a; \
- char *vn = Nullch, *module = SvPV(ST(0),n_a); \
+ SV *_sv; \
+ const char *vn = NULL, *module = SvPV_nolen_const(ST(0)); \
if (items >= 2) /* version supplied as bootstrap arg */ \
_sv = ST(1); \
else { \
_sv = get_sv(Perl_form(aTHX_ "%s::%s", module, \
vn = "VERSION"), FALSE); \
} \
- if (_sv && (!SvOK(_sv) || strNE(XS_VERSION, SvPV(_sv, n_a)))) \
- Perl_croak(aTHX_ "%s object version %s does not match %s%s%s%s %"SVf,\
- module, XS_VERSION, \
- vn ? "$" : "", vn ? module : "", vn ? "::" : "", \
- vn ? vn : "bootstrap parameter", _sv); \
+ if (_sv) { \
+ SV *xssv = Perl_newSVpv(aTHX_ XS_VERSION, 0); \
+ xssv = new_version(xssv); \
+ if ( !sv_derived_from(_sv, "version") ) \
+ _sv = new_version(_sv); \
+ if ( vcmp(_sv,xssv) ) \
+ Perl_croak(aTHX_ "%s object version %"SVf" does not match %s%s%s%s %"SVf,\
+ module, SVfARG(vstringify(xssv)), \
+ vn ? "$" : "", vn ? module : "", vn ? "::" : "", \
+ vn ? vn : "bootstrap parameter", SVfARG(vstringify(_sv)));\
+ } \
} STMT_END
#else
# define XS_VERSION_BOOTCHECK
#endif
+#ifdef NO_XSLOCKS
+# define dXCPT dJMPENV; int rEtV = 0
+# define XCPT_TRY_START JMPENV_PUSH(rEtV); if (rEtV == 0)
+# define XCPT_TRY_END JMPENV_POP;
+# define XCPT_CATCH if (rEtV != 0)
+# define XCPT_RETHROW JMPENV_JUMP(rEtV)
+#endif
+
/*
The DBM_setFilter & DBM_ckFilter macros are only used by
the *DB*_File modules
*/
#define DBM_setFilter(db_type,code) \
- { \
+ STMT_START { \
if (db_type) \
RETVAL = sv_mortalcopy(db_type) ; \
ST(0) = RETVAL ; \
else \
db_type = newSVsv(code) ; \
} \
- }
+ } STMT_END
#define DBM_ckFilter(arg,type,name) \
+ STMT_START { \
if (db->type) { \
if (db->filtering) { \
croak("recursion detected in %s", name) ; \
SAVEINT(db->filtering) ; \
db->filtering = TRUE ; \
SAVESPTR(DEFSV) ; \
+ if (name[7] == 's') \
+ arg = newSVsv(arg); \
DEFSV = arg ; \
SvTEMP_off(arg) ; \
PUSHMARK(SP) ; \
PUTBACK ; \
FREETMPS ; \
LEAVE ; \
- }
+ if (name[7] == 's'){ \
+ arg = sv_2mortal(arg); \
+ } \
+ } } STMT_END
#if 1 /* for compatibility */
# define VTBL_sv &PL_vtbl_sv
#endif
#include "perlapi.h"
+#ifndef PERL_MAD
+# undef PL_madskills
+# undef PL_xmlfp
+# define PL_madskills 0
+# define PL_xmlfp 0
+#endif
#if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_NO_GET_CONTEXT) && !defined(PERL_CORE)
# undef aTHX
#endif /* PERL_IMPLICIT_SYS && !PERL_CORE */
#endif /* _INC_PERL_XSUB_H */ /* include guard */
+
+/*
+ * Local variables:
+ * c-indentation-style: bsd
+ * c-basic-offset: 4
+ * indent-tabs-mode: t
+ * End:
+ *
+ * ex: set ts=8 sts=4 sw=4 noet:
+ */
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