ppport.h

PostgreSQL 8.1.4的源码 适用于Linux下的开源数据库系统

/* ppport.h -- Perl/Pollution/Portability Version 2.011
 *
 * Automatically Created by Devel::PPPort on Sun Jul  4 09:11:52 2004
 *
 * Do NOT edit this file directly! -- Edit PPPort.pm instead.
 *
 * Version 2.x, Copyright (C) 2001, Paul Marquess.
 * Version 1.x, Copyright (C) 1999, Kenneth Albanowski.
 * This code may be used and distributed under the same license as any
 * version of Perl.
 *
 * This version of ppport.h is designed to support operation with Perl
 * installations back to 5.004, and has been tested up to 5.8.1.
 *
 * If this version of ppport.h is failing during the compilation of this
 * module, please check if a newer version of Devel::PPPort is available
 * on CPAN before sending a bug report.
 *
 * If you are using the latest version of Devel::PPPort and it is failing
 * during compilation of this module, please send a report to [e-mail]
 *
 * Include all following information:
 *
 *	1. The complete output from running "perl -V"
 *
 *	2. This file.
 *
 *	3. The name & version of the module you were trying to build.
 *
 *	4. A full log of the build that failed.
 *
 *	5. Any other information that you think could be relevant.
 *
 *
 * For the latest version of this code, please retreive the Devel::PPPort
 * module from CPAN.
 *
 */

/*
 * In order for a Perl extension module to be as portable as possible
 * across differing versions of Perl itself, certain steps need to be taken.
 * Including this header is the first major one, then using dTHR is all the
 * appropriate places and using a PL_ prefix to refer to global Perl
 * variables is the second.
 *
 */


/* If you use one of a few functions that were not present in earlier
 * versions of Perl, please add a define before the inclusion of ppport.h
 * for a static include, or use the GLOBAL request in a single module to
 * produce a global definition that can be referenced from the other
 * modules.
 *
 * Function:			Static define:			 Extern define:
 * newCONSTSUB()		NEED_newCONSTSUB		 NEED_newCONSTSUB_GLOBAL
 *
 */


/* To verify whether ppport.h is needed for your module, and whether any
 * special defines should be used, ppport.h can be run through Perl to check
 * your source code. Simply say:
 *
 *	perl -x ppport.h *.c *.h *.xs foo/bar*.c [etc]
 *
 * The result will be a list of patches suggesting changes that should at
 * least be acceptable, if not necessarily the most efficient solution, or a
 * fix for all possible problems. It won't catch where dTHR is needed, and
 * doesn't attempt to account for global macro or function definitions,
 * nested includes, typemaps, etc.
 *
 * In order to test for the need of dTHR, please try your module under a
 * recent version of Perl that has threading compiled-in.
 *
 */


/*
#!/usr/bin/perl
@ARGV = ("*.xs") if !@ARGV;
%badmacros = %funcs = %macros = (); $replace = 0;
foreach (<DATA>) {
	$funcs{$1} = 1 if /Provide:\s+(\S+)/;
	$macros{$1} = 1 if /^#\s*define\s+([a-zA-Z0-9_]+)/;
	$replace = $1 if /Replace:\s+(\d+)/;
	$badmacros{$2}=$1 if $replace and /^#\s*define\s+([a-zA-Z0-9_]+).*?\s+([a-zA-Z0-9_]+)/;
	$badmacros{$1}=$2 if /Replace (\S+) with (\S+)/;
}
foreach $filename (map(glob($_),@ARGV)) {
	unless (open(IN, "<$filename")) {
		warn "Unable to read from $file: $!\n";
		next;
	}
	print "Scanning $filename...\n";
	$c = ""; while (<IN>) { $c .= $_; } close(IN);
	$need_include = 0; %add_func = (); $changes = 0;
	$has_include = ($c =~ /#.*include.*ppport/m);

	foreach $func (keys %funcs) {
		if ($c =~ /#.*define.*\bNEED_$func(_GLOBAL)?\b/m) {
			if ($c !~ /\b$func\b/m) {
				print "If $func isn't needed, you don't need to request it.\n" if
				$changes += ($c =~ s/^.*#.*define.*\bNEED_$func\b.*\n//m);
			} else {
				print "Uses $func\n";
				$need_include = 1;
			}
		} else {
			if ($c =~ /\b$func\b/m) {
				$add_func{$func} =1 ;
				print "Uses $func\n";
				$need_include = 1;
			}
		}
	}

	if (not $need_include) {
		foreach $macro (keys %macros) {
			if ($c =~ /\b$macro\b/m) {
				print "Uses $macro\n";
				$need_include = 1;
			}
		}
	}

	foreach $badmacro (keys %badmacros) {
		if ($c =~ /\b$badmacro\b/m) {
			$changes += ($c =~ s/\b$badmacro\b/$badmacros{$badmacro}/gm);
			print "Uses $badmacros{$badmacro} (instead of $badmacro)\n";
			$need_include = 1;
		}
	}

	if (scalar(keys %add_func) or $need_include != $has_include) {
		if (!$has_include) {
			$inc = join('',map("#define NEED_$_\n", sort keys %add_func)).
				   "#include \"ppport.h\"\n";
			$c = "$inc$c" unless $c =~ s/#.*include.*XSUB.*\n/$&$inc/m;
		} elsif (keys %add_func) {
			$inc = join('',map("#define NEED_$_\n", sort keys %add_func));
			$c = "$inc$c" unless $c =~ s/^.*#.*include.*ppport.*$/$inc$&/m;
		}
		if (!$need_include) {
			print "Doesn't seem to need ppport.h.\n";
			$c =~ s/^.*#.*include.*ppport.*\n//m;
		}
		$changes++;
	}

	if ($changes) {
		open(OUT,">/tmp/ppport.h.$$");
		print OUT $c;
		close(OUT);
		open(DIFF, "diff -u $filename /tmp/ppport.h.$$|");
		while (<DIFF>) { s!/tmp/ppport\.h\.$$!$filename.patched!; print STDOUT; }
		close(DIFF);
		unlink("/tmp/ppport.h.$$");
	} else {
		print "Looks OK\n";
	}
}
__DATA__
*/

#ifndef _P_P_PORTABILITY_H_
#define _P_P_PORTABILITY_H_

#ifndef PERL_REVISION
#ifndef __PATCHLEVEL_H_INCLUDED__
#define PERL_PATCHLEVEL_H_IMPLICIT
#include <patchlevel.h>
#endif
#if !(defined(PERL_VERSION) || (defined(SUBVERSION) && defined(PATCHLEVEL)))
#include <could_not_find_Perl_patchlevel.h>
#endif
#ifndef PERL_REVISION
#define PERL_REVISION	 (5)
 /* Replace: 1 */
#define PERL_VERSION PATCHLEVEL
#define PERL_SUBVERSION  SUBVERSION
 /* Replace PERL_PATCHLEVEL with PERL_VERSION */
 /* Replace: 0 */
#endif
#endif

#define PERL_BCDVERSION ((PERL_REVISION * 0x1000000L) + (PERL_VERSION * 0x1000L) + PERL_SUBVERSION)

/* It is very unlikely that anyone will try to use this with Perl 6
   (or greater), but who knows.
 */
#if PERL_REVISION != 5
#error ppport.h only works with Perl version 5
#endif   /* PERL_REVISION != 5 */

#ifndef ERRSV
#define ERRSV perl_get_sv("@",FALSE)
#endif

#if (PERL_VERSION < 4) || ((PERL_VERSION == 4) && (PERL_SUBVERSION <= 5))
/* Replace: 1 */
#define PL_Sv		 Sv
#define PL_compiling compiling
#define PL_copline	 copline
#define PL_curcop	 curcop
#define PL_curstash  curstash
#define PL_defgv	 defgv
#define PL_dirty	 dirty
#define PL_dowarn	 dowarn
#define PL_hints	 hints
#define PL_na		 na
#define PL_perldb	 perldb
#define PL_rsfp_filters  rsfp_filters
#define PL_rsfpv	 rsfp
#define PL_stdingv	 stdingv
#define PL_sv_no	 sv_no
#define PL_sv_undef  sv_undef
#define PL_sv_yes	 sv_yes
/* Replace: 0 */
#endif

#ifdef HASATTRIBUTE
#if (defined(__GNUC__) && defined(__cplusplus)) || defined(__INTEL_COMPILER)
#define PERL_UNUSED_DECL
#else
#define PERL_UNUSED_DECL __attribute__((unused))
#endif
#else
#define PERL_UNUSED_DECL
#endif

#ifndef dNOOP
#define NOOP (void)0
#define dNOOP extern int Perl___notused PERL_UNUSED_DECL
#endif

#ifndef dTHR
#define dTHR		  dNOOP
#endif

#ifndef dTHX
#define dTHX		  dNOOP
#define dTHXa(x)	  dNOOP
#define dTHXoa(x)	  dNOOP
#endif

#ifndef pTHX
#define pTHX	void
#define pTHX_
#define aTHX
#define aTHX_
#endif

#ifndef dAX
#define dAX I32 ax = MARK - PL_stack_base + 1
#endif
#ifndef dITEMS
#define dITEMS I32 items = SP - MARK
#endif

/* IV could also be a quad (say, a long long), but Perls
 * capable of those should have IVSIZE already. */
#if !defined(IVSIZE) && defined(LONGSIZE)
#define IVSIZE LONGSIZE
#endif
#ifndef IVSIZE
#define IVSIZE 4				/* A bold guess, but the best we can make. */
#endif

#ifndef UVSIZE
#define UVSIZE IVSIZE
#endif

#ifndef NVTYPE
#if defined(USE_LONG_DOUBLE) && defined(HAS_LONG_DOUBLE)
#define NVTYPE long double
#else
#define NVTYPE double
#endif
typedef NVTYPE NV;
#endif

#ifndef INT2PTR

#if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
#define PTRV				  UV
#define INT2PTR(any,d)		  (any)(d)
#else
#if PTRSIZE == LONGSIZE
#define PTRV				unsigned long
#else
#define PTRV				unsigned
#endif
#define INT2PTR(any,d)		  (any)(PTRV)(d)
#endif
#define NUM2PTR(any,d)	(any)(PTRV)(d)
#define PTR2IV(p)		INT2PTR(IV,p)
#define PTR2UV(p)		INT2PTR(UV,p)
#define PTR2NV(p)		NUM2PTR(NV,p)
#if PTRSIZE == LONGSIZE
#define PTR2ul(p)	  (unsigned long)(p)
#else
#define PTR2ul(p)	  INT2PTR(unsigned long,p)
#endif
#endif   /* !INT2PTR */

#ifndef boolSV
#define boolSV(b) ((b) ? &PL_sv_yes : &PL_sv_no)
#endif

#ifndef gv_stashpvn
#define gv_stashpvn(str,len,flags) gv_stashpv(str,flags)
#endif

#ifndef newSVpvn
#define newSVpvn(data,len) ((len) ? newSVpv ((data), (len)) : newSVpv ("", 0))
#endif

#ifndef newRV_inc
/* Replace: 1 */
#define newRV_inc(sv) newRV(sv)
/* Replace: 0 */
#endif

/* DEFSV appears first in 5.004_56 */
#ifndef DEFSV
#define DEFSV GvSV(PL_defgv)
#endif

#ifndef SAVE_DEFSV
#define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
#endif

#ifndef newRV_noinc
#ifdef __GNUC__
#define newRV_noinc(sv)				  \
	  ({								  \
		  SV *nsv = (SV*)newRV(sv);		  \
		  SvREFCNT_dec(sv);				  \
		  nsv;							  \
	  })
#else
#if defined(USE_THREADS)
static SV  *
newRV_noinc(SV *sv)
{
	SV		   *nsv = (SV *) newRV(sv);

	SvREFCNT_dec(sv);
	return nsv;
}
#else
#define newRV_noinc(sv)    \
		(PL_Sv=(SV*)newRV(sv), SvREFCNT_dec(sv), (SV*)PL_Sv)
#endif
#endif
#endif

/* Provide: newCONSTSUB */

/* newCONSTSUB from IO.xs is in the core starting with 5.004_63 */
#if (PERL_VERSION < 4) || ((PERL_VERSION == 4) && (PERL_SUBVERSION < 63))

#if defined(NEED_newCONSTSUB)
static
#else
extern void newCONSTSUB(HV *stash, char *name, SV *sv);
#endif

#if defined(NEED_newCONSTSUB) || defined(NEED_newCONSTSUB_GLOBAL)
void
newCONSTSUB(stash, name, sv)
HV		   *stash;
char	   *name;
SV		   *sv;
{
	U32			oldhints = PL_hints;
	HV		   *old_cop_stash = PL_curcop->cop_stash;
	HV		   *old_curstash = PL_curstash;
	line_t		oldline = PL_curcop->cop_line;

	PL_curcop->cop_line = PL_copline;

	PL_hints &= ~HINT_BLOCK_SCOPE;
	if (stash)
		PL_curstash = PL_curcop->cop_stash = stash;

	newSUB(

#if (PERL_VERSION < 3) || ((PERL_VERSION == 3) && (PERL_SUBVERSION < 22))
	/* before 5.003_22 */
		   start_subparse(),
#else
#if (PERL_VERSION == 3) && (PERL_SUBVERSION == 22)
	/* 5.003_22 */
		   start_subparse(0),
#else
	/* 5.003_23  onwards */
		   start_subparse(FALSE, 0),
#endif
#endif

		   newSVOP(OP_CONST, 0, newSVpv(name, 0)),
		   newSVOP(OP_CONST, 0, &PL_sv_no),		/* SvPV(&PL_sv_no) == "" --
												 * GMB */