*
*/
-#ifndef _INC_PERL_XSUB_H
-#define _INC_PERL_XSUB_H 1
+#ifndef PERL_XSUB_H_
+#define PERL_XSUB_H_ 1
/* first, some documentation for xsubpp-generated items */
/*
-=head1 C<xsubpp> variables and internal functions
+=for apidoc_section $XS
-=for apidoc Amn|char*|CLASS
+F<xsubpp> compiles XS code into C. See L<perlutil/xsubpp>.
+
+=for comment
+Some variables below are flagged with 'u' because Devel::PPPort can't currently
+readily test them as they spring into existence by compiling with xsubpp.
+
+=for apidoc Amnu|char*|CLASS
Variable which is setup by C<xsubpp> to indicate the
class name for a C++ XS constructor. This is always a C<char*>. See
C<L</THIS>>.
-=for apidoc Amn|(whatever)|RETVAL
+=for apidoc Amnu|type|RETVAL
Variable which is setup by C<xsubpp> to hold the return value for an
XSUB. This is always the proper type for the XSUB. See
L<perlxs/"The RETVAL Variable">.
-=for apidoc Amn|(whatever)|THIS
+=for apidoc Amnu|type|THIS
Variable which is setup by C<xsubpp> to designate the object in a C++
XSUB. This is always the proper type for the C++ object. See C<L</CLASS>> and
L<perlxs/"Using XS With C++">.
=for apidoc Am|SV*|ST|int ix
Used to access elements on the XSUB's stack.
-=for apidoc AmU||XS
+=for apidoc Ay||XS|name
Macro to declare an XSUB and its C parameter list. This is handled by
-C<xsubpp>. It is the same as using the more explicit XS_EXTERNAL macro.
+C<xsubpp>. It is the same as using the more explicit C<XS_EXTERNAL> macro; the
+latter is preferred.
-=for apidoc AmU||XS_INTERNAL
+=for apidoc Ayu||XS_INTERNAL|name
Macro to declare an XSUB and its C parameter list without exporting the symbols.
This is handled by C<xsubpp> and generally preferable over exporting the XSUB
symbols unnecessarily.
-=for apidoc AmU||XS_EXTERNAL
+=for comment
+XS_INTERNAL marked 'u' because declaring a function static within our test
+function doesn't work
+
+=for apidoc Ay||XS_EXTERNAL|name
Macro to declare an XSUB and its C parameter list explicitly exporting the symbols.
-=for apidoc Ams||dAX
+=for apidoc Ay||XSPROTO|name
+Macro used by C<L</XS_INTERNAL>> and C<L</XS_EXTERNAL>> to declare a function
+prototype. You probably shouldn't be using this directly yourself.
+
+=for apidoc Amns||dAX
Sets up the C<ax> variable.
This is usually handled automatically by C<xsubpp> by calling C<dXSARGS>.
-=for apidoc Ams||dAXMARK
+=for apidoc Amns||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
+=for apidoc Amns||dITEMS
Sets up the C<items> variable.
This is usually handled automatically by C<xsubpp> by calling C<dXSARGS>.
-=for apidoc Ams||dXSARGS
-Sets up stack and mark pointers for an XSUB, calling dSP and dMARK.
+=for apidoc Amns||dXSARGS
+Sets up stack and mark pointers for an XSUB, calling C<dSP> and C<dMARK>.
Sets up the C<ax> and C<items> variables by calling C<dAX> and C<dITEMS>.
This is usually handled automatically by C<xsubpp>.
-=for apidoc Ams||dXSI32
+=for apidoc Amns||dXSI32
Sets up the C<ix> variable for an XSUB which has aliases. This is usually
handled automatically by C<xsubpp>.
-=for apidoc Ams||dUNDERBAR
+=for apidoc Amns||dUNDERBAR
Sets up any variable needed by the C<UNDERBAR> macro. It used to define
C<padoff_du>, but it is currently a noop. However, it is strongly advised
to still use it for ensuring past and future compatibility.
-=for apidoc AmU||UNDERBAR
-The SV* corresponding to the $_ variable. Works even if there
-is a lexical $_ in scope.
+=for apidoc AmnU||UNDERBAR
+The SV* corresponding to the C<$_> variable. Works even if there
+is a lexical C<$_> 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
+# define PERL_UNUSED_ARG(x) ((void)x)
#endif
#ifndef PERL_UNUSED_VAR
# define PERL_UNUSED_VAR(x) ((void)x)
* "STATIC", ie. it exports XSUB symbols. You probably don't want that.
*/
-#define XSPROTO(name) void name(pTHX_ CV* cv)
+#define XSPROTO(name) void name(pTHX_ CV* cv __attribute__unused__)
#undef XS
#undef XS_EXTERNAL
#if defined(__CYGWIN__) && defined(USE_DYNAMIC_LOADING)
# define XS_EXTERNAL(name) __declspec(dllexport) XSPROTO(name)
# define XS_INTERNAL(name) STATIC XSPROTO(name)
-#endif
-#if defined(__SYMBIAN32__)
-# define XS_EXTERNAL(name) EXPORT_C XSPROTO(name)
-# define XS_INTERNAL(name) EXPORT_C STATIC XSPROTO(name)
-#endif
-#ifndef XS_EXTERNAL
-# if defined(HASATTRIBUTE_UNUSED) && !defined(__cplusplus)
-# define XS_EXTERNAL(name) void name(pTHX_ CV* cv __attribute__unused__)
-# define XS_INTERNAL(name) STATIC void name(pTHX_ CV* cv __attribute__unused__)
-# else
-# ifdef __cplusplus
-# define XS_EXTERNAL(name) extern "C" XSPROTO(name)
-# define XS_INTERNAL(name) static XSPROTO(name)
-# else
-# define XS_EXTERNAL(name) XSPROTO(name)
-# define XS_INTERNAL(name) STATIC XSPROTO(name)
-# endif
-# endif
+#elif defined(__cplusplus)
+# define XS_EXTERNAL(name) extern "C" XSPROTO(name)
+# define XS_INTERNAL(name) static XSPROTO(name)
+#elif defined(HASATTRIBUTE_UNUSED)
+# define XS_EXTERNAL(name) void name(pTHX_ CV* cv __attribute__unused__)
+# define XS_INTERNAL(name) STATIC void name(pTHX_ CV* cv __attribute__unused__)
+#else
+# define XS_EXTERNAL(name) XSPROTO(name)
+# define XS_INTERNAL(name) STATIC XSPROTO(name)
#endif
/* We do export xsub symbols by default for the public XS macro.
#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 \
+#define dXSARGS \
dSP; dAXMARK; dITEMS
/* These 3 macros are replacements for dXSARGS macro only in bootstrap.
They factor out common code in every BOOT XSUB. Computation of vars mark
optimized away since BOOT must return &PL_sv_yes by default from xsubpp.
Note these macros are not drop in replacements for dXSARGS since they set
PL_xsubfilename. */
-# define dXSBOOTARGSXSAPIVERCHK \
+#define dXSBOOTARGSXSAPIVERCHK \
I32 ax = XS_BOTHVERSION_SETXSUBFN_POPMARK_BOOTCHECK; \
- SV **mark = PL_stack_base + ax; dSP; dITEMS
-# define dXSBOOTARGSAPIVERCHK \
+ SV **mark = PL_stack_base + ax - 1; dSP; dITEMS
+#define dXSBOOTARGSAPIVERCHK \
I32 ax = XS_APIVERSION_SETXSUBFN_POPMARK_BOOTCHECK; \
- SV **mark = PL_stack_base + ax; dSP; dITEMS
+ SV **mark = PL_stack_base + ax - 1; dSP; dITEMS
/* dXSBOOTARGSNOVERCHK has no API in xsubpp to choose it so do
#undef dXSBOOTARGSXSAPIVERCHK
#define dXSBOOTARGSXSAPIVERCHK dXSBOOTARGSNOVERCHK */
-# define dXSBOOTARGSNOVERCHK \
+#define dXSBOOTARGSNOVERCHK \
I32 ax = XS_SETXSUBFN_POPMARK; \
- SV **mark = PL_stack_base + ax; dSP; dITEMS
-#endif
+ SV **mark = PL_stack_base + ax - 1; dSP; dITEMS
#define dXSTARG SV * const targ = ((PL_op->op_private & OPpENTERSUB_HASTARG) \
? PAD_SV(PL_op->op_targ) : sv_newmortal())
/* Typically used to return values from XS functions. */
/*
-=head1 Stack Manipulation Macros
+=for apidoc_section $stack
=for apidoc Am|void|XST_mIV|int pos|IV iv
Place an integer into the specified position C<pos> on the stack. The
Place a copy of a string into the specified position C<pos> on the stack.
The value is stored in a new mortal SV.
+=for apidoc Am|void|XST_mUV|int pos|UV uv
+Place an unsigned integer into the specified position C<pos> on the stack. The
+value is stored in a new mortal SV.
+
=for apidoc Am|void|XST_mNO|int pos
Place C<&PL_sv_no> into the specified position C<pos> on the
stack.
=for apidoc Am|void|XSRETURN_PV|char* str
Return a copy of a string from an XSUB immediately. Uses C<XST_mPV>.
-=for apidoc Ams||XSRETURN_NO
+=for apidoc Amns||XSRETURN_NO
Return C<&PL_sv_no> from an XSUB immediately. Uses C<XST_mNO>.
-=for apidoc Ams||XSRETURN_YES
+=for apidoc Amns||XSRETURN_YES
Return C<&PL_sv_yes> from an XSUB immediately. Uses C<XST_mYES>.
-=for apidoc Ams||XSRETURN_UNDEF
+=for apidoc Amns||XSRETURN_UNDEF
Return C<&PL_sv_undef> from an XSUB immediately. Uses C<XST_mUNDEF>.
-=for apidoc Ams||XSRETURN_EMPTY
+=for apidoc Amns||XSRETURN_EMPTY
Return an empty list from an XSUB immediately.
-=head1 Variables created by C<xsubpp> and C<xsubpp> internal functions
-
=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.
-=for apidoc AmU||XS_VERSION
+=for apidoc AmnU||XS_VERSION
The version identifier for an XS module. This is usually
handled automatically by C<ExtUtils::MakeMaker>. See
C<L</XS_VERSION_BOOTCHECK>>.
-=for apidoc Ams||XS_VERSION_BOOTCHECK
-Macro to verify that a PM module's $VERSION variable matches the XS
+=for apidoc Amns||XS_VERSION_BOOTCHECK
+Macro to verify that a PM module's C<$VERSION> variable matches the XS
module's C<XS_VERSION> variable. This is usually handled automatically by
C<xsubpp>. See L<perlxs/"The VERSIONCHECK: Keyword">.
-=for apidoc Ams||XS_APIVERSION_BOOTCHECK
+=for apidoc Amns||XS_APIVERSION_BOOTCHECK
Macro to verify that the perl api version an XS module has been compiled against
matches the api version of the perl interpreter it's being loaded into.
-=head1 Exception Handling (simple) Macros
+=for apidoc_section $exceptions
-=for apidoc Ams||dXCPT
+=for apidoc Amns||dXCPT
Set up necessary local variables for exception handling.
See L<perlguts/"Exception Handling">.
-=for apidoc AmU||XCPT_TRY_START
+=for apidoc AmnU||XCPT_TRY_START
Starts a try block. See L<perlguts/"Exception Handling">.
-=for apidoc AmU||XCPT_TRY_END
+=for apidoc AmnU||XCPT_TRY_END
Ends a try block. See L<perlguts/"Exception Handling">.
-=for apidoc AmU||XCPT_CATCH
+=for apidoc AmnU||XCPT_CATCH
Introduces a catch block. See L<perlguts/"Exception Handling">.
-=for apidoc Ams||XCPT_RETHROW
+=for apidoc Amns||XCPT_RETHROW
Rethrows a previously caught exception. See L<perlguts/"Exception Handling">.
=cut
#define XSRETURN(off) \
STMT_START { \
const IV tmpXSoff = (off); \
+ assert(tmpXSoff >= 0);\
PL_stack_sp = PL_stack_base + ax + (tmpXSoff - 1); \
return; \
} STMT_END
# define VTBL_amagicelem &PL_vtbl_amagicelem
#endif
-#include "perlapi.h"
-
#if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_NO_GET_CONTEXT) && !defined(PERL_CORE)
# undef aTHX
# undef aTHX_
# define utime PerlLIO_utime
# define write PerlLIO_write
# define malloc PerlMem_malloc
+# define calloc PerlMem_calloc
# define realloc PerlMem_realloc
# define free PerlMem_free
# define abort PerlProc_abort
# endif /* NO_XSLOCKS */
#endif /* PERL_IMPLICIT_SYS && !PERL_CORE */
-#endif /* _INC_PERL_XSUB_H */ /* include guard */
+#endif /* PERL_XSUB_H_ */ /* include guard */
/*
* ex: set ts=8 sts=4 sw=4 et:
https://perl5.git.perl.org / perl5.git / blobdiff