Video-Capture-V4l/gppport.h


#ifndef _G_P_P_PORTABILITY_H_
#define _G_P_P_PORTABILITY_H_

/* Perl/Pollution/Portability Version 1.0007-gimp-2 */

/* Copyright (C) 1999, Kenneth Albanowski. This code may be used and
   distributed under the same license as any version of Perl. */
   
/* For the latest version of this code, please retreive the Devel::PPPort
   module from CPAN, contact the author at <kjahds@kjahds.com>, or check
   with the Perl maintainers. */
   
/* If you needed to customize this file for your project, please mention
   your changes, and visible alter the version number. */


/*
   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/any.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 PERL_REVISION
#   ifndef __PATCHLEVEL_H_INCLUDED__
#       include "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)

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

#if (PERL_VERSION < 4) || ((PERL_VERSION == 4) && (PERL_SUBVERSION <= 5))
/* Replace: 1 */
#       define PL_sv_undef      sv_undef
#       define PL_sv_yes        sv_yes
#       define PL_sv_no         sv_no
#       define PL_na            na
#       define PL_stdingv       stdingv
#       define PL_hints         hints
#       define PL_curcop        curcop
#       define PL_curstash      curstash
#       define PL_copline       copline
#       define PL_Sv            Sv
#       define PL_perl_destruct_level perl_destruct_level
/* Replace: 0 */
#endif

#ifndef dTHR
#  ifdef WIN32
#       define dTHR extern int Perl___notused
#  else
#       define dTHR extern int errno
#  endif
#endif

#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

#ifndef newRV_noinc
#  ifdef __GNUC__
#    define newRV_noinc(sv)               \
      ({                                  \
          SV *nsv = (SV*)newRV(sv);       \
          SvREFCNT_dec(sv);               \
          nsv;                            \
      })
#  else
#    if defined(CRIPPLED_CC) || 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 */
                newSTATEOP(0, Nullch, newSVOP(OP_CONST, 0, sv))
        );

        PL_hints = oldhints;
        PL_curcop->cop_stash = old_cop_stash;
        PL_curstash = old_curstash;
        PL_curcop->cop_line = oldline;
}
#endif

#endif /* newCONSTSUB */

/*GIMP*/
#ifndef SvPV_nolen
#       define SvPV_nolen(b) SvPV((b),PL_na)
#endif

#endif /* _G_P_P_PORTABILITY_H_ */
Revision:	1.1
Committed:	Fri May 5 20:21:52 2000 UTC (25 years, 10 months ago) by pcg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-0_9, rel-0_902, HEAD
Log Message:	Initial check-in
#	Content
1
2	#ifndef _G_P_P_PORTABILITY_H_
3	#define _G_P_P_PORTABILITY_H_
4
5	/* Perl/Pollution/Portability Version 1.0007-gimp-2 */
6
7	/* Copyright (C) 1999, Kenneth Albanowski. This code may be used and
8	distributed under the same license as any version of Perl. */
9
10	/* For the latest version of this code, please retreive the Devel::PPPort
11	module from CPAN, contact the author at <kjahds@kjahds.com>, or check
12	with the Perl maintainers. */
13
14	/* If you needed to customize this file for your project, please mention
15	your changes, and visible alter the version number. */
16
17
18	/*
19	In order for a Perl extension module to be as portable as possible
20	across differing versions of Perl itself, certain steps need to be taken.
21	Including this header is the first major one, then using dTHR is all the
22	appropriate places and using a PL_ prefix to refer to global Perl
23	variables is the second.
24	*/
25
26
27	/* If you use one of a few functions that were not present in earlier
28	versions of Perl, please add a define before the inclusion of ppport.h
29	for a static include, or use the GLOBAL request in a single module to
30	produce a global definition that can be referenced from the other
31	modules.
32
33	Function: Static define: Extern define:
34	newCONSTSUB() NEED_newCONSTSUB NEED_newCONSTSUB_GLOBAL
35
36	*/
37
38
39	/* To verify whether ppport.h is needed for your module, and whether any
40	special defines should be used, ppport.h can be run through Perl to check
41	your source code. Simply say:
42
43	perl -x ppport.h .c .h *.xs foo/any.c [etc]
44
45	The result will be a list of patches suggesting changes that should at
46	least be acceptable, if not necessarily the most efficient solution, or a
47	fix for all possible problems. It won't catch where dTHR is needed, and
48	doesn't attempt to account for global macro or function definitions,
49	nested includes, typemaps, etc.
50
51	In order to test for the need of dTHR, please try your module under a
52	recent version of Perl that has threading compiled-in.
53
54	*/
55
56
57	/*
58	#!/usr/bin/perl
59	@ARGV = ("*.xs") if !@ARGV;
60	%badmacros = %funcs = %macros = (); $replace = 0;
61	foreach (<DATA>) {
62	$funcs{$1} = 1 if /Provide:\s+(\S+)/;
63	$macros{$1} = 1 if /^#\s*define\s+([a-zA-Z0-9_]+)/;
64	$replace = $1 if /Replace:\s+(\d+)/;
65	$badmacros{$2}=$1 if $replace and /^#\sdefine\s+([a-zA-Z0-9_]+).?\s+([a-zA-Z0-9_]+)/;
66	$badmacros{$1}=$2 if /Replace (\S+) with (\S+)/;
67	}
68	foreach $filename (map(glob($_),@ARGV)) {
69	unless (open(IN, "<$filename")) {
70	warn "Unable to read from $file: $!\n";
71	next;
72	}
73	print "Scanning $filename...\n";
74	$c = ""; while (<IN>) { $c .= $_; } close(IN);
75	$need_include = 0; %add_func = (); $changes = 0;
76	$has_include = ($c =~ /#.include.ppport/m);
77
78	foreach $func (keys %funcs) {
79	if ($c =~ /#.define.\bNEED_$func(_GLOBAL)?\b/m) {
80	if ($c !~ /\b$func\b/m) {
81	print "If $func isn't needed, you don't need to request it.\n" if
82	$changes += ($c =~ s/^.#.define.\bNEED_$func\b.\n//m);
83	} else {
84	print "Uses $func\n";
85	$need_include = 1;
86	}
87	} else {
88	if ($c =~ /\b$func\b/m) {
89	$add_func{$func} =1 ;
90	print "Uses $func\n";
91	$need_include = 1;
92	}
93	}
94	}
95
96	if (not $need_include) {
97	foreach $macro (keys %macros) {
98	if ($c =~ /\b$macro\b/m) {
99	print "Uses $macro\n";
100	$need_include = 1;
101	}
102	}
103	}
104
105	foreach $badmacro (keys %badmacros) {
106	if ($c =~ /\b$badmacro\b/m) {
107	$changes += ($c =~ s/\b$badmacro\b/$badmacros{$badmacro}/gm);
108	print "Uses $badmacros{$badmacro} (instead of $badmacro)\n";
109	$need_include = 1;
110	}
111	}
112
113	if (scalar(keys %add_func) or $need_include != $has_include) {
114	if (!$has_include) {
115	$inc = join('',map("#define NEED_$_\n", sort keys %add_func)).
116	"#include \"ppport.h\"\n";
117	$c = "$inc$c" unless $c =~ s/#.include.XSUB.*\n/$&$inc/m;
118	} elsif (keys %add_func) {
119	$inc = join('',map("#define NEED_$_\n", sort keys %add_func));
120	$c = "$inc$c" unless $c =~ s/^.#.include.ppport.$/$inc$&/m;
121	}
122	if (!$need_include) {
123	print "Doesn't seem to need ppport.h.\n";
124	$c =~ s/^.#.include.ppport.\n//m;
125	}
126	$changes++;
127	}
128
129	if ($changes) {
130	open(OUT,">/tmp/ppport.h.$$");
131	print OUT $c;
132	close(OUT);
133	open(DIFF, "diff -u $filename /tmp/ppport.h.$$\|");
134	while (<DIFF>) { s!/tmp/ppport\.h\.$$!$filename.patched!; print STDOUT; }
135	close(DIFF);
136	unlink("/tmp/ppport.h.$$");
137	} else {
138	print "Looks OK\n";
139	}
140	}
141	__DATA__
142	*/
143
144	#ifndef PERL_REVISION
145	# ifndef __PATCHLEVEL_H_INCLUDED__
146	# include "patchlevel.h"
147	# endif
148	# ifndef PERL_REVISION
149	# define PERL_REVISION (5)
150	/* Replace: 1 */
151	# define PERL_VERSION PATCHLEVEL
152	# define PERL_SUBVERSION SUBVERSION
153	/* Replace PERL_PATCHLEVEL with PERL_VERSION */
154	/* Replace: 0 */
155	# endif
156	#endif
157
158	#define PERL_BCDVERSION ((PERL_REVISION * 0x1000000L) + (PERL_VERSION * 0x1000L) + PERL_SUBVERSION)
159
160	#ifndef ERRSV
161	# define ERRSV perl_get_sv("@",FALSE)
162	#endif
163
164	#if (PERL_VERSION < 4) \|\| ((PERL_VERSION == 4) && (PERL_SUBVERSION <= 5))
165	/* Replace: 1 */
166	# define PL_sv_undef sv_undef
167	# define PL_sv_yes sv_yes
168	# define PL_sv_no sv_no
169	# define PL_na na
170	# define PL_stdingv stdingv
171	# define PL_hints hints
172	# define PL_curcop curcop
173	# define PL_curstash curstash
174	# define PL_copline copline
175	# define PL_Sv Sv
176	# define PL_perl_destruct_level perl_destruct_level
177	/* Replace: 0 */
178	#endif
179
180	#ifndef dTHR
181	# ifdef WIN32
182	# define dTHR extern int Perl___notused
183	# else
184	# define dTHR extern int errno
185	# endif
186	#endif
187
188	#ifndef boolSV
189	# define boolSV(b) ((b) ? &PL_sv_yes : &PL_sv_no)
190	#endif
191
192	#ifndef gv_stashpvn
193	# define gv_stashpvn(str,len,flags) gv_stashpv(str,flags)
194	#endif
195
196	#ifndef newSVpvn
197	# define newSVpvn(data,len) ((len) ? newSVpv ((data), (len)) : newSVpv ("", 0))
198	#endif
199
200	#ifndef newRV_inc
201	/* Replace: 1 */
202	# define newRV_inc(sv) newRV(sv)
203	/* Replace: 0 */
204	#endif
205
206	#ifndef newRV_noinc
207	# ifdef __GNUC__
208	# define newRV_noinc(sv) \
209	({ \
210	SV nsv = (SV)newRV(sv); \
211	SvREFCNT_dec(sv); \
212	nsv; \
213	})
214	# else
215	# if defined(CRIPPLED_CC) \|\| defined(USE_THREADS)
216	static SV * newRV_noinc (SV * sv)
217	{
218	SV nsv = (SV)newRV(sv);
219	SvREFCNT_dec(sv);
220	return nsv;
221	}
222	# else
223	# define newRV_noinc(sv) \
224	((PL_Sv=(SV)newRV(sv), SvREFCNT_dec(sv), (SV)PL_Sv)
225	# endif
226	# endif
227	#endif
228
229	/* Provide: newCONSTSUB */
230
231	/* newCONSTSUB from IO.xs is in the core starting with 5.004_63 */
232	#if (PERL_VERSION < 4) \|\| ((PERL_VERSION == 4) && (PERL_SUBVERSION < 63))
233
234	#if defined(NEED_newCONSTSUB)
235	static
236	#else
237	extern void newCONSTSUB _((HV * stash, char * name, SV *sv));
238	#endif
239
240	#if defined(NEED_newCONSTSUB) \|\| defined(NEED_newCONSTSUB_GLOBAL)
241	void
242	newCONSTSUB(stash,name,sv)
243	HV *stash;
244	char *name;
245	SV *sv;
246	{
247	U32 oldhints = PL_hints;
248	HV *old_cop_stash = PL_curcop->cop_stash;
249	HV *old_curstash = PL_curstash;
250	line_t oldline = PL_curcop->cop_line;
251	PL_curcop->cop_line = PL_copline;
252
253	PL_hints &= ~HINT_BLOCK_SCOPE;
254	if (stash)
255	PL_curstash = PL_curcop->cop_stash = stash;
256
257	newSUB(
258
259	#if (PERL_VERSION < 3) \|\| ((PERL_VERSION == 3) && (PERL_SUBVERSION < 22))
260	/* before 5.003_22 */
261	start_subparse(),
262	#else
263	# if (PERL_VERSION == 3) && (PERL_SUBVERSION == 22)
264	/* 5.003_22 */
265	start_subparse(0),
266	# else
267	/* 5.003_23 onwards */
268	start_subparse(FALSE, 0),
269	# endif
270	#endif
271
272	newSVOP(OP_CONST, 0, newSVpv(name,0)),
273	newSVOP(OP_CONST, 0, &PL_sv_no), /* SvPV(&PL_sv_no) == "" -- GMB */
274	newSTATEOP(0, Nullch, newSVOP(OP_CONST, 0, sv))
275	);
276
277	PL_hints = oldhints;
278	PL_curcop->cop_stash = old_cop_stash;
279	PL_curstash = old_curstash;
280	PL_curcop->cop_line = oldline;
281	}
282	#endif
283
284	#endif /* newCONSTSUB */
285
286	/GIMP/
287	#ifndef SvPV_nolen
288	# define SvPV_nolen(b) SvPV((b),PL_na)
289	#endif
290
291	#endif /* _G_P_P_PORTABILITY_H_ */