1/* This file is Based on output from
2 * Perl/Pollution/Portability Version 2.0000 */
3
4#ifndef _P_P_PORTABILITY_H_
5#define _P_P_PORTABILITY_H_
6
7#ifndef PERL_REVISION
8#   ifndef __PATCHLEVEL_H_INCLUDED__
9#       include "patchlevel.h"
10#   endif
11#   ifndef PERL_REVISION
12#	define PERL_REVISION	(5)
13        /* Replace: 1 */
14#       define PERL_VERSION	PATCHLEVEL
15#       define PERL_SUBVERSION	SUBVERSION
16        /* Replace PERL_PATCHLEVEL with PERL_VERSION */
17        /* Replace: 0 */
18#   endif
19#endif
20
21#define PERL_BCDVERSION ((PERL_REVISION * 0x1000000L) + (PERL_VERSION * 0x1000L) + PERL_SUBVERSION)
22
23#ifndef ERRSV
24#	define ERRSV perl_get_sv("@",FALSE)
25#endif
26
27#if (PERL_VERSION < 4) || ((PERL_VERSION == 4) && (PERL_SUBVERSION <= 5))
28/* Replace: 1 */
29#	define PL_Sv		Sv
30#	define PL_compiling	compiling
31#	define PL_copline	copline
32#	define PL_curcop	curcop
33#	define PL_curstash	curstash
34#	define PL_defgv		defgv
35#	define PL_dirty		dirty
36#	define PL_hints		hints
37#	define PL_na		na
38#	define PL_perldb	perldb
39#	define PL_rsfp_filters	rsfp_filters
40#	define PL_rsfp		rsfp
41#	define PL_stdingv	stdingv
42#	define PL_sv_no		sv_no
43#	define PL_sv_undef	sv_undef
44#	define PL_sv_yes	sv_yes
45/* Replace: 0 */
46#endif
47
48#ifndef pTHX
49#    define pTHX
50#    define pTHX_
51#    define aTHX
52#    define aTHX_
53#endif
54
55#ifndef PTR2IV
56#    define PTR2IV(d)   (IV)(d)
57#endif
58
59#ifndef INT2PTR
60#    define INT2PTR(any,d)      (any)(d)
61#endif
62
63#ifndef dTHR
64#  ifdef WIN32
65#	define dTHR extern int Perl___notused
66#  else
67#	define dTHR extern int errno
68#  endif
69#endif
70
71#ifndef boolSV
72#	define boolSV(b) ((b) ? &PL_sv_yes : &PL_sv_no)
73#endif
74
75#ifndef gv_stashpvn
76#	define gv_stashpvn(str,len,flags) gv_stashpv(str,flags)
77#endif
78
79#ifndef newSVpvn
80#	define newSVpvn(data,len) ((len) ? newSVpv ((data), (len)) : newSVpv ("", 0))
81#endif
82
83#ifndef newRV_inc
84/* Replace: 1 */
85#	define newRV_inc(sv) newRV(sv)
86/* Replace: 0 */
87#endif
88
89/* DEFSV appears first in 5.004_56 */
90#ifndef DEFSV
91#  define DEFSV	GvSV(PL_defgv)
92#endif
93
94#ifndef SAVE_DEFSV
95#    define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
96#endif
97
98#ifndef newRV_noinc
99#  ifdef __GNUC__
100#    define newRV_noinc(sv)               \
101      ({                                  \
102          SV *nsv = (SV*)newRV(sv);       \
103          SvREFCNT_dec(sv);               \
104          nsv;                            \
105      })
106#  else
107#    if defined(CRIPPLED_CC) || defined(USE_THREADS)
108static SV * newRV_noinc (SV * sv)
109{
110          SV *nsv = (SV*)newRV(sv);
111          SvREFCNT_dec(sv);
112          return nsv;
113}
114#    else
115#      define newRV_noinc(sv)    \
116        ((PL_Sv=(SV*)newRV(sv), SvREFCNT_dec(sv), (SV*)PL_Sv)
117#    endif
118#  endif
119#endif
120
121/* Provide: newCONSTSUB */
122
123/* newCONSTSUB from IO.xs is in the core starting with 5.004_63 */
124#if (PERL_VERSION < 4) || ((PERL_VERSION == 4) && (PERL_SUBVERSION < 63))
125
126#if defined(NEED_newCONSTSUB)
127static
128#else
129extern void newCONSTSUB _((HV * stash, char * name, SV *sv));
130#endif
131
132#if defined(NEED_newCONSTSUB) || defined(NEED_newCONSTSUB_GLOBAL)
133void
134newCONSTSUB(stash,name,sv)
135HV *stash;
136char *name;
137SV *sv;
138{
139	U32 oldhints = PL_hints;
140	HV *old_cop_stash = PL_curcop->cop_stash;
141	HV *old_curstash = PL_curstash;
142	line_t oldline = PL_curcop->cop_line;
143	PL_curcop->cop_line = PL_copline;
144
145	PL_hints &= ~HINT_BLOCK_SCOPE;
146	if (stash)
147		PL_curstash = PL_curcop->cop_stash = stash;
148
149	newSUB(
150
151#if (PERL_VERSION < 3) || ((PERL_VERSION == 3) && (PERL_SUBVERSION < 22))
152     /* before 5.003_22 */
153		start_subparse(),
154#else
155#  if (PERL_VERSION == 3) && (PERL_SUBVERSION == 22)
156     /* 5.003_22 */
157     		start_subparse(0),
158#  else
159     /* 5.003_23  onwards */
160     		start_subparse(FALSE, 0),
161#  endif
162#endif
163
164		newSVOP(OP_CONST, 0, newSVpv(name,0)),
165		newSVOP(OP_CONST, 0, &PL_sv_no),   /* SvPV(&PL_sv_no) == "" -- GMB */
166		newSTATEOP(0, Nullch, newSVOP(OP_CONST, 0, sv))
167	);
168
169	PL_hints = oldhints;
170	PL_curcop->cop_stash = old_cop_stash;
171	PL_curstash = old_curstash;
172	PL_curcop->cop_line = oldline;
173}
174#endif
175
176#endif /* newCONSTSUB */
177
178
179#ifndef START_MY_CXT
180
181/*
182 * Boilerplate macros for initializing and accessing interpreter-local
183 * data from C.  All statics in extensions should be reworked to use
184 * this, if you want to make the extension thread-safe.  See ext/re/re.xs
185 * for an example of the use of these macros.
186 *
187 * Code that uses these macros is responsible for the following:
188 * 1. #define MY_CXT_KEY to a unique string, e.g. "DynaLoader_guts"
189 * 2. Declare a typedef named my_cxt_t that is a structure that contains
190 *    all the data that needs to be interpreter-local.
191 * 3. Use the START_MY_CXT macro after the declaration of my_cxt_t.
192 * 4. Use the MY_CXT_INIT macro such that it is called exactly once
193 *    (typically put in the BOOT: section).
194 * 5. Use the members of the my_cxt_t structure everywhere as
195 *    MY_CXT.member.
196 * 6. Use the dMY_CXT macro (a declaration) in all the functions that
197 *    access MY_CXT.
198 */
199
200#if defined(MULTIPLICITY) || defined(PERL_OBJECT) || \
201    defined(PERL_CAPI)    || defined(PERL_IMPLICIT_CONTEXT)
202
203/* This must appear in all extensions that define a my_cxt_t structure,
204 * right after the definition (i.e. at file scope).  The non-threads
205 * case below uses it to declare the data as static. */
206#define START_MY_CXT
207
208#if PERL_REVISION == 5 && \
209    (PERL_VERSION < 4 || (PERL_VERSION == 4 && PERL_SUBVERSION < 68 ))
210/* Fetches the SV that keeps the per-interpreter data. */
211#define dMY_CXT_SV \
212	SV *my_cxt_sv = perl_get_sv(MY_CXT_KEY, FALSE)
213#else /* >= perl5.004_68 */
214#define dMY_CXT_SV \
215	SV *my_cxt_sv = *hv_fetch(PL_modglobal, MY_CXT_KEY,		\
216				  sizeof(MY_CXT_KEY)-1, TRUE)
217#endif /* < perl5.004_68 */
218
219/* This declaration should be used within all functions that use the
220 * interpreter-local data. */
221#define dMY_CXT	\
222	dMY_CXT_SV;							\
223	my_cxt_t *my_cxtp = INT2PTR(my_cxt_t*,SvUV(my_cxt_sv))
224
225/* Creates and zeroes the per-interpreter data.
226 * (We allocate my_cxtp in a Perl SV so that it will be released when
227 * the interpreter goes away.) */
228#define MY_CXT_INIT \
229	dMY_CXT_SV;							\
230	/* newSV() allocates one more than needed */			\
231	my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\
232	Zero(my_cxtp, 1, my_cxt_t);					\
233	sv_setuv(my_cxt_sv, PTR2UV(my_cxtp))
234
235/* This macro must be used to access members of the my_cxt_t structure.
236 * e.g. MYCXT.some_data */
237#define MY_CXT		(*my_cxtp)
238
239/* Judicious use of these macros can reduce the number of times dMY_CXT
240 * is used.  Use is similar to pTHX, aTHX etc. */
241#define pMY_CXT		my_cxt_t *my_cxtp
242#define pMY_CXT_	pMY_CXT,
243#define _pMY_CXT	,pMY_CXT
244#define aMY_CXT		my_cxtp
245#define aMY_CXT_	aMY_CXT,
246#define _aMY_CXT	,aMY_CXT
247
248#else /* single interpreter */
249
250#ifndef NOOP
251#  define NOOP (void)0
252#endif
253
254#ifdef HASATTRIBUTE
255#  define PERL_UNUSED_DECL __attribute__((unused))
256#else
257#  define PERL_UNUSED_DECL
258#endif
259
260#ifndef dNOOP
261#  define dNOOP extern int Perl___notused PERL_UNUSED_DECL
262#endif
263
264#define START_MY_CXT	static my_cxt_t my_cxt;
265#define dMY_CXT_SV	dNOOP
266#define dMY_CXT		dNOOP
267#define MY_CXT_INIT	NOOP
268#define MY_CXT		my_cxt
269
270#define pMY_CXT		void
271#define pMY_CXT_
272#define _pMY_CXT
273#define aMY_CXT
274#define aMY_CXT_
275#define _aMY_CXT
276
277#endif
278
279#endif /* START_MY_CXT */
280
281#ifdef SvPVbyte
282#   if PERL_REVISION == 5 && PERL_VERSION < 7
283       /* SvPVbyte does not work in perl-5.6.1, borrowed version for 5.7.3 */
284#       undef SvPVbyte
285#       define SvPVbyte(sv, lp) \
286          ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK) \
287           ? ((lp = SvCUR(sv)), SvPVX(sv)) : my_sv_2pvbyte(aTHX_ sv, &lp))
288       static char *
289       my_sv_2pvbyte(pTHX_ register SV *sv, STRLEN *lp)
290       {
291           sv_utf8_downgrade(sv,0);
292           return SvPV(sv,*lp);
293       }
294#   endif
295#else
296#   define SvPVbyte SvPV
297#endif
298
299#ifndef SvUTF8_off
300#    define SvUTF8_off(s)
301#endif
302
303#if 1
304#ifdef DBM_setFilter
305#undef DBM_setFilter
306#undef DBM_ckFilter
307#endif
308#endif
309
310#ifndef DBM_setFilter
311
312/*
313   The DBM_setFilter & DBM_ckFilter macros are only used by
314   the *DB*_File modules
315*/
316
317#define DBM_setFilter(db_type,code)				\
318	{							\
319	    if (db_type)					\
320	        RETVAL = sv_mortalcopy(db_type) ;		\
321	    ST(0) = RETVAL ;					\
322	    if (db_type && (code == &PL_sv_undef)) {		\
323                SvREFCNT_dec(db_type) ;				\
324	        db_type = NULL ;				\
325	    }							\
326	    else if (code) {					\
327	        if (db_type)					\
328	            sv_setsv(db_type, code) ;			\
329	        else						\
330	            db_type = newSVsv(code) ;			\
331	    }	    						\
332	}
333
334#define DBM_ckFilter(arg,type,name)				\
335	if (db->type) {						\
336	    /*printf("ckFilter %s\n", name);*/			\
337	    if (db->filtering) {				\
338	        croak("recursion detected in %s", name) ;	\
339	    }                     				\
340	    ENTER ;						\
341	    SAVETMPS ;						\
342	    SAVEINT(db->filtering) ;				\
343	    db->filtering = TRUE ;				\
344	    SAVESPTR(DEFSV) ;					\
345            if (name[7] == 's')                                 \
346                arg = newSVsv(arg);                             \
347	    DEFSV = arg ;					\
348	    SvTEMP_off(arg) ;					\
349	    PUSHMARK(SP) ;					\
350	    PUTBACK ;						\
351	    (void) perl_call_sv(db->type, G_DISCARD); 		\
352	    SPAGAIN ;						\
353	    PUTBACK ;						\
354	    FREETMPS ;						\
355	    LEAVE ;						\
356            if (name[7] == 's'){                                \
357                arg = sv_2mortal(arg);                          \
358            }                                                   \
359            SvOKp(arg);                                         \
360	}
361
362#endif /* DBM_setFilter */
363
364#endif /* _P_P_PORTABILITY_H_ */
365