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Add all the missing gnuk{free,net}bsd hints files to MANIFEST
[perl5.git] / XSUB.h
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1/* XSUB.h
2 *
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3 * Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999,
4 * 2000, 2001, 2002, 2003, by Larry Wall and others
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5 *
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
8 *
9 */
10
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11#ifndef _INC_PERL_XSUB_H
12#define _INC_PERL_XSUB_H 1
13
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14/* first, some documentation for xsubpp-generated items */
15
16/*
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17=head1 Variables created by C<xsubpp> and C<xsubpp> internal functions
18
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19=for apidoc Amn|char*|CLASS
20Variable which is setup by C<xsubpp> to indicate the
21class name for a C++ XS constructor. This is always a C<char*>. See C<THIS>.
22
23=for apidoc Amn|(whatever)|RETVAL
24Variable which is setup by C<xsubpp> to hold the return value for an
25XSUB. This is always the proper type for the XSUB. See
26L<perlxs/"The RETVAL Variable">.
27
28=for apidoc Amn|(whatever)|THIS
29Variable which is setup by C<xsubpp> to designate the object in a C++
30XSUB. This is always the proper type for the C++ object. See C<CLASS> and
31L<perlxs/"Using XS With C++">.
32
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33=for apidoc Amn|I32|ax
34Variable which is setup by C<xsubpp> to indicate the stack base offset,
35used by the C<ST>, C<XSprePUSH> and C<XSRETURN> macros. The C<dMARK> macro
36must be called prior to setup the C<MARK> variable.
37
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38=for apidoc Amn|I32|items
39Variable which is setup by C<xsubpp> to indicate the number of
40items on the stack. See L<perlxs/"Variable-length Parameter Lists">.
41
42=for apidoc Amn|I32|ix
43Variable which is setup by C<xsubpp> to indicate which of an
44XSUB's aliases was used to invoke it. See L<perlxs/"The ALIAS: Keyword">.
45
46=for apidoc Am|SV*|ST|int ix
47Used to access elements on the XSUB's stack.
48
49=for apidoc AmU||XS
50Macro to declare an XSUB and its C parameter list. This is handled by
51C<xsubpp>.
52
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53=for apidoc Ams||dAX
54Sets up the C<ax> variable.
55This is usually handled automatically by C<xsubpp> by calling C<dXSARGS>.
56
57=for apidoc Ams||dITEMS
58Sets up the C<items> variable.
59This is usually handled automatically by C<xsubpp> by calling C<dXSARGS>.
60
954c1994 61=for apidoc Ams||dXSARGS
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62Sets up stack and mark pointers for an XSUB, calling dSP and dMARK.
63Sets up the C<ax> and C<items> variables by calling C<dAX> and C<dITEMS>.
64This is usually handled automatically by C<xsubpp>.
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65
66=for apidoc Ams||dXSI32
67Sets up the C<ix> variable for an XSUB which has aliases. This is usually
68handled automatically by C<xsubpp>.
69
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70=for apidoc Ams||dUNDERBAR
71Sets up the C<padoff_du> variable for an XSUB that wishes to use
72C<UNDERBAR>.
73
74=for apidoc AmU||UNDERBAR
75The SV* corresponding to the $_ variable. Works even if there
76is a lexical $_ in scope.
77
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78=cut
79*/
80
3280af22 81#define ST(off) PL_stack_base[ax + (off)]
a0d0e21e 82
d308986b 83#if defined(__CYGWIN__) && defined(USE_DYNAMIC_LOADING)
acfe0abc 84# define XS(name) __declspec(dllexport) void name(pTHX_ CV* cv)
cea2e8a9 85#else
acfe0abc 86# define XS(name) void name(pTHX_ CV* cv)
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87#endif
88
349b520e 89#define dAX I32 ax = MARK - PL_stack_base + 1
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90
91#define dITEMS I32 items = SP - MARK
92
a0d0e21e 93#define dXSARGS \
3c78fafa 94 dSP; dMARK; \
9f2ea798 95 dAX; dITEMS
a0d0e21e 96
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97#define dXSTARG SV * targ = ((PL_op->op_private & OPpENTERSUB_HASTARG) \
98 ? PAD_SV(PL_op->op_targ) : sv_newmortal())
99
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100/* Should be used before final PUSHi etc. if not in PPCODE section. */
101#define XSprePUSH (sp = PL_stack_base + ax - 1)
102
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103#define XSANY CvXSUBANY(cv)
104
105#define dXSI32 I32 ix = XSANY.any_i32
106
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107#ifdef __cplusplus
108# define XSINTERFACE_CVT(ret,name) ret (*name)(...)
109#else
110# define XSINTERFACE_CVT(ret,name) ret (*name)()
111#endif
112#define dXSFUNCTION(ret) XSINTERFACE_CVT(ret,XSFUNCTION)
2554589c 113#define XSINTERFACE_FUNC(ret,cv,f) ((XSINTERFACE_CVT(ret,))(f))
cfc02341 114#define XSINTERFACE_FUNC_SET(cv,f) \
a12c3db7 115 CvXSUBANY(cv).any_dxptr = (void (*) (pTHX_ void*))(f)
cfc02341 116
8e64067c 117#define dUNDERBAR I32 padoff_du = find_rundefsvoffset()
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118#define UNDERBAR ((padoff_du == NOT_IN_PAD \
119 || PAD_COMPNAME_FLAGS(padoff_du) & SVpad_OUR) \
120 ? DEFSV : PAD_SVl(padoff_du))
121
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122/* Simple macros to put new mortal values onto the stack. */
123/* Typically used to return values from XS functions. */
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124
125/*
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126=head1 Stack Manipulation Macros
127
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128=for apidoc Am|void|XST_mIV|int pos|IV iv
129Place an integer into the specified position C<pos> on the stack. The
130value is stored in a new mortal SV.
131
132=for apidoc Am|void|XST_mNV|int pos|NV nv
133Place a double into the specified position C<pos> on the stack. The value
134is stored in a new mortal SV.
135
136=for apidoc Am|void|XST_mPV|int pos|char* str
137Place a copy of a string into the specified position C<pos> on the stack.
138The value is stored in a new mortal SV.
139
140=for apidoc Am|void|XST_mNO|int pos
141Place C<&PL_sv_no> into the specified position C<pos> on the
142stack.
143
144=for apidoc Am|void|XST_mYES|int pos
145Place C<&PL_sv_yes> into the specified position C<pos> on the
146stack.
147
148=for apidoc Am|void|XST_mUNDEF|int pos
149Place C<&PL_sv_undef> into the specified position C<pos> on the
150stack.
151
152=for apidoc Am|void|XSRETURN|int nitems
153Return from XSUB, indicating number of items on the stack. This is usually
154handled by C<xsubpp>.
155
156=for apidoc Am|void|XSRETURN_IV|IV iv
157Return an integer from an XSUB immediately. Uses C<XST_mIV>.
158
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159=for apidoc Am|void|XSRETURN_UV|IV uv
160Return an integer from an XSUB immediately. Uses C<XST_mUV>.
161
954c1994 162=for apidoc Am|void|XSRETURN_NV|NV nv
d1be9408 163Return a double from an XSUB immediately. Uses C<XST_mNV>.
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164
165=for apidoc Am|void|XSRETURN_PV|char* str
166Return a copy of a string from an XSUB immediately. Uses C<XST_mPV>.
167
168=for apidoc Ams||XSRETURN_NO
169Return C<&PL_sv_no> from an XSUB immediately. Uses C<XST_mNO>.
170
171=for apidoc Ams||XSRETURN_YES
172Return C<&PL_sv_yes> from an XSUB immediately. Uses C<XST_mYES>.
173
174=for apidoc Ams||XSRETURN_UNDEF
175Return C<&PL_sv_undef> from an XSUB immediately. Uses C<XST_mUNDEF>.
176
177=for apidoc Ams||XSRETURN_EMPTY
178Return an empty list from an XSUB immediately.
179
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180=head1 Variables created by C<xsubpp> and C<xsubpp> internal functions
181
c578083c 182=for apidoc AmU||newXSproto|char* name|XSUBADDR_t f|char* filename|const char *proto
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183Used by C<xsubpp> to hook up XSUBs as Perl subs. Adds Perl prototypes to
184the subs.
185
186=for apidoc AmU||XS_VERSION
187The version identifier for an XS module. This is usually
188handled automatically by C<ExtUtils::MakeMaker>. See C<XS_VERSION_BOOTCHECK>.
189
190=for apidoc Ams||XS_VERSION_BOOTCHECK
191Macro to verify that a PM module's $VERSION variable matches the XS
192module's C<XS_VERSION> variable. This is usually handled automatically by
193C<xsubpp>. See L<perlxs/"The VERSIONCHECK: Keyword">.
194
195=cut
196*/
197
4633a7c4 198#define XST_mIV(i,v) (ST(i) = sv_2mortal(newSViv(v)) )
108ccc45 199#define XST_mUV(i,v) (ST(i) = sv_2mortal(newSVuv(v)) )
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200#define XST_mNV(i,v) (ST(i) = sv_2mortal(newSVnv(v)) )
201#define XST_mPV(i,v) (ST(i) = sv_2mortal(newSVpv(v,0)))
79cb57f6 202#define XST_mPVN(i,v,n) (ST(i) = sv_2mortal(newSVpvn(v,n)))
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203#define XST_mNO(i) (ST(i) = &PL_sv_no )
204#define XST_mYES(i) (ST(i) = &PL_sv_yes )
205#define XST_mUNDEF(i) (ST(i) = &PL_sv_undef)
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206
207#define XSRETURN(off) \
208 STMT_START { \
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209 IV tmpXSoff = (off); \
210 PL_stack_sp = PL_stack_base + ax + (tmpXSoff - 1); \
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211 return; \
212 } STMT_END
213
80b92232 214#define XSRETURN_IV(v) STMT_START { XST_mIV(0,v); XSRETURN(1); } STMT_END
108ccc45 215#define XSRETURN_UV(v) STMT_START { XST_mUV(0,v); XSRETURN(1); } STMT_END
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216#define XSRETURN_NV(v) STMT_START { XST_mNV(0,v); XSRETURN(1); } STMT_END
217#define XSRETURN_PV(v) STMT_START { XST_mPV(0,v); XSRETURN(1); } STMT_END
954c1994 218#define XSRETURN_PVN(v,n) STMT_START { XST_mPVN(0,v,n); XSRETURN(1); } STMT_END
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219#define XSRETURN_NO STMT_START { XST_mNO(0); XSRETURN(1); } STMT_END
220#define XSRETURN_YES STMT_START { XST_mYES(0); XSRETURN(1); } STMT_END
221#define XSRETURN_UNDEF STMT_START { XST_mUNDEF(0); XSRETURN(1); } STMT_END
222#define XSRETURN_EMPTY STMT_START { XSRETURN(0); } STMT_END
382b8d97 223
37120919 224#define newXSproto(a,b,c,d) sv_setpv((SV*)newXS(a,b,c), d)
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225
226#ifdef XS_VERSION
c6af7a1a 227# define XS_VERSION_BOOTCHECK \
774d564b 228 STMT_START { \
3de3296f 229 SV *_sv; STRLEN n_a; \
2d8e6c8d 230 char *vn = Nullch, *module = SvPV(ST(0),n_a); \
774d564b 231 if (items >= 2) /* version supplied as bootstrap arg */ \
3de3296f 232 _sv = ST(1); \
774d564b 233 else { \
46fc3d4c 234 /* XXX GV_ADDWARN */ \
3de3296f 235 _sv = get_sv(Perl_form(aTHX_ "%s::%s", module, \
864dbfa3 236 vn = "XS_VERSION"), FALSE); \
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237 if (!_sv || !SvOK(_sv)) \
238 _sv = get_sv(Perl_form(aTHX_ "%s::%s", module, \
864dbfa3 239 vn = "VERSION"), FALSE); \
774d564b 240 } \
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241 if (_sv) { \
242 SV *xssv = Perl_newSVpvf(aTHX_ "%s",XS_VERSION); \
243 xssv = new_version(xssv); \
244 if ( !sv_derived_from(_sv, "version") ) \
245 _sv = new_version(_sv); \
246 if ( vcmp(_sv,xssv) ) \
014ead4b 247 Perl_croak(aTHX_ "%s object version %"SVf" does not match %s%s%s%s %"SVf,\
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248 module, vstringify(xssv), \
249 vn ? "$" : "", vn ? module : "", vn ? "::" : "", \
250 vn ? vn : "bootstrap parameter", vstringify(_sv));\
251 } \
80b92232 252 } STMT_END
720fb644 253#else
c6af7a1a 254# define XS_VERSION_BOOTCHECK
720fb644 255#endif
76e3520e 256
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257/*
258 The DBM_setFilter & DBM_ckFilter macros are only used by
259 the *DB*_File modules
260*/
261
262#define DBM_setFilter(db_type,code) \
263 { \
264 if (db_type) \
265 RETVAL = sv_mortalcopy(db_type) ; \
266 ST(0) = RETVAL ; \
267 if (db_type && (code == &PL_sv_undef)) { \
268 SvREFCNT_dec(db_type) ; \
269 db_type = NULL ; \
270 } \
271 else if (code) { \
272 if (db_type) \
273 sv_setsv(db_type, code) ; \
274 else \
275 db_type = newSVsv(code) ; \
276 } \
277 }
278
279#define DBM_ckFilter(arg,type,name) \
280 if (db->type) { \
281 if (db->filtering) { \
282 croak("recursion detected in %s", name) ; \
283 } \
284 ENTER ; \
285 SAVETMPS ; \
286 SAVEINT(db->filtering) ; \
287 db->filtering = TRUE ; \
288 SAVESPTR(DEFSV) ; \
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289 if (name[7] == 's') \
290 arg = newSVsv(arg); \
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291 DEFSV = arg ; \
292 SvTEMP_off(arg) ; \
293 PUSHMARK(SP) ; \
294 PUTBACK ; \
295 (void) perl_call_sv(db->type, G_DISCARD); \
296 SPAGAIN ; \
297 PUTBACK ; \
298 FREETMPS ; \
299 LEAVE ; \
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300 if (name[7] == 's'){ \
301 arg = sv_2mortal(arg); \
302 } \
303 SvOKp(arg); \
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304 }
305
51371543 306#if 1 /* for compatibility */
dc9e4912
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307# define VTBL_sv &PL_vtbl_sv
308# define VTBL_env &PL_vtbl_env
309# define VTBL_envelem &PL_vtbl_envelem
310# define VTBL_sig &PL_vtbl_sig
311# define VTBL_sigelem &PL_vtbl_sigelem
312# define VTBL_pack &PL_vtbl_pack
313# define VTBL_packelem &PL_vtbl_packelem
314# define VTBL_dbline &PL_vtbl_dbline
315# define VTBL_isa &PL_vtbl_isa
316# define VTBL_isaelem &PL_vtbl_isaelem
317# define VTBL_arylen &PL_vtbl_arylen
318# define VTBL_glob &PL_vtbl_glob
319# define VTBL_mglob &PL_vtbl_mglob
320# define VTBL_nkeys &PL_vtbl_nkeys
321# define VTBL_taint &PL_vtbl_taint
322# define VTBL_substr &PL_vtbl_substr
323# define VTBL_vec &PL_vtbl_vec
324# define VTBL_pos &PL_vtbl_pos
325# define VTBL_bm &PL_vtbl_bm
326# define VTBL_fm &PL_vtbl_fm
327# define VTBL_uvar &PL_vtbl_uvar
328# define VTBL_defelem &PL_vtbl_defelem
329# define VTBL_regexp &PL_vtbl_regexp
330# define VTBL_regdata &PL_vtbl_regdata
331# define VTBL_regdatum &PL_vtbl_regdatum
332# ifdef USE_LOCALE_COLLATE
333# define VTBL_collxfrm &PL_vtbl_collxfrm
334# endif
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335# define VTBL_amagic &PL_vtbl_amagic
336# define VTBL_amagicelem &PL_vtbl_amagicelem
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337#endif
338
6f4183fe 339#include "perlapi.h"
c6af7a1a 340
e8ee3774 341#if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_NO_GET_CONTEXT) && !defined(PERL_CORE)
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342# undef aTHX
343# undef aTHX_
54aff467
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344# define aTHX PERL_GET_THX
345# define aTHX_ aTHX,
54aff467
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346#endif
347
acfe0abc 348#if defined(PERL_IMPLICIT_SYS) && !defined(PERL_CORE)
c6af7a1a 349# ifndef NO_XSLOCKS
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350# if defined (NETWARE) && defined (USE_STDIO)
351# define times PerlProc_times
352# define setuid PerlProc_setuid
353# define setgid PerlProc_setgid
354# define getpid PerlProc_getpid
355# define pause PerlProc_pause
356# define exit PerlProc_exit
357# define _exit PerlProc__exit
358# else
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359# undef closedir
360# undef opendir
361# undef stdin
362# undef stdout
363# undef stderr
364# undef feof
365# undef ferror
366# undef fgetpos
367# undef ioctl
368# undef getlogin
369# undef setjmp
370# undef getc
371# undef ungetc
372# undef fileno
373
cb69f87a 374/* Following symbols were giving redefinition errors while building extensions - sgp 17th Oct 2000 */
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375#ifdef NETWARE
376# undef readdir
377# undef fstat
378# undef stat
379# undef longjmp
380# undef endhostent
381# undef endnetent
382# undef endprotoent
383# undef endservent
384# undef gethostbyaddr
385# undef gethostbyname
386# undef gethostent
387# undef getnetbyaddr
388# undef getnetbyname
389# undef getnetent
390# undef getprotobyname
391# undef getprotobynumber
392# undef getprotoent
393# undef getservbyname
394# undef getservbyport
395# undef getservent
396# undef inet_ntoa
397# undef sethostent
398# undef setnetent
399# undef setprotoent
400# undef setservent
401#endif /* NETWARE */
402
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403# undef socketpair
404
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405# define mkdir PerlDir_mkdir
406# define chdir PerlDir_chdir
407# define rmdir PerlDir_rmdir
408# define closedir PerlDir_close
409# define opendir PerlDir_open
410# define readdir PerlDir_read
411# define rewinddir PerlDir_rewind
412# define seekdir PerlDir_seek
413# define telldir PerlDir_tell
414# define putenv PerlEnv_putenv
415# define getenv PerlEnv_getenv
b2af26b1 416# define uname PerlEnv_uname
197357d0
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417# define stdin PerlSIO_stdin
418# define stdout PerlSIO_stdout
419# define stderr PerlSIO_stderr
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420# define fopen PerlSIO_fopen
421# define fclose PerlSIO_fclose
422# define feof PerlSIO_feof
423# define ferror PerlSIO_ferror
b6d726d6 424# define clearerr PerlSIO_clearerr
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425# define getc PerlSIO_getc
426# define fputc PerlSIO_fputc
427# define fputs PerlSIO_fputs
428# define fflush PerlSIO_fflush
429# define ungetc PerlSIO_ungetc
430# define fileno PerlSIO_fileno
431# define fdopen PerlSIO_fdopen
432# define freopen PerlSIO_freopen
433# define fread PerlSIO_fread
434# define fwrite PerlSIO_fwrite
22a46b6e
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435# define setbuf PerlSIO_setbuf
436# define setvbuf PerlSIO_setvbuf
437# define setlinebuf PerlSIO_setlinebuf
1f59ddd9
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438# define stdoutf PerlSIO_stdoutf
439# define vfprintf PerlSIO_vprintf
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440# define ftell PerlSIO_ftell
441# define fseek PerlSIO_fseek
442# define fgetpos PerlSIO_fgetpos
443# define fsetpos PerlSIO_fsetpos
444# define frewind PerlSIO_rewind
445# define tmpfile PerlSIO_tmpfile
c6af7a1a
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446# define access PerlLIO_access
447# define chmod PerlLIO_chmod
448# define chsize PerlLIO_chsize
449# define close PerlLIO_close
450# define dup PerlLIO_dup
451# define dup2 PerlLIO_dup2
452# define flock PerlLIO_flock
453# define fstat PerlLIO_fstat
454# define ioctl PerlLIO_ioctl
455# define isatty PerlLIO_isatty
6b980173 456# define link PerlLIO_link
c6af7a1a
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457# define lseek PerlLIO_lseek
458# define lstat PerlLIO_lstat
459# define mktemp PerlLIO_mktemp
460# define open PerlLIO_open
461# define read PerlLIO_read
462# define rename PerlLIO_rename
463# define setmode PerlLIO_setmode
4f49e16e 464# define stat(buf,sb) PerlLIO_stat(buf,sb)
c6af7a1a
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465# define tmpnam PerlLIO_tmpnam
466# define umask PerlLIO_umask
467# define unlink PerlLIO_unlink
468# define utime PerlLIO_utime
469# define write PerlLIO_write
470# define malloc PerlMem_malloc
471# define realloc PerlMem_realloc
472# define free PerlMem_free
473# define abort PerlProc_abort
474# define exit PerlProc_exit
475# define _exit PerlProc__exit
476# define execl PerlProc_execl
477# define execv PerlProc_execv
478# define execvp PerlProc_execvp
479# define getuid PerlProc_getuid
480# define geteuid PerlProc_geteuid
481# define getgid PerlProc_getgid
482# define getegid PerlProc_getegid
483# define getlogin PerlProc_getlogin
484# define kill PerlProc_kill
485# define killpg PerlProc_killpg
486# define pause PerlProc_pause
487# define popen PerlProc_popen
488# define pclose PerlProc_pclose
489# define pipe PerlProc_pipe
490# define setuid PerlProc_setuid
491# define setgid PerlProc_setgid
492# define sleep PerlProc_sleep
493# define times PerlProc_times
494# define wait PerlProc_wait
495# define setjmp PerlProc_setjmp
496# define longjmp PerlProc_longjmp
497# define signal PerlProc_signal
7766f137 498# define getpid PerlProc_getpid
57ab3dfe 499# define gettimeofday PerlProc_gettimeofday
c6af7a1a
GS
500# define htonl PerlSock_htonl
501# define htons PerlSock_htons
502# define ntohl PerlSock_ntohl
503# define ntohs PerlSock_ntohs
504# define accept PerlSock_accept
505# define bind PerlSock_bind
506# define connect PerlSock_connect
507# define endhostent PerlSock_endhostent
508# define endnetent PerlSock_endnetent
509# define endprotoent PerlSock_endprotoent
510# define endservent PerlSock_endservent
511# define gethostbyaddr PerlSock_gethostbyaddr
512# define gethostbyname PerlSock_gethostbyname
513# define gethostent PerlSock_gethostent
514# define gethostname PerlSock_gethostname
515# define getnetbyaddr PerlSock_getnetbyaddr
516# define getnetbyname PerlSock_getnetbyname
517# define getnetent PerlSock_getnetent
518# define getpeername PerlSock_getpeername
519# define getprotobyname PerlSock_getprotobyname
520# define getprotobynumber PerlSock_getprotobynumber
521# define getprotoent PerlSock_getprotoent
522# define getservbyname PerlSock_getservbyname
523# define getservbyport PerlSock_getservbyport
524# define getservent PerlSock_getservent
525# define getsockname PerlSock_getsockname
526# define getsockopt PerlSock_getsockopt
527# define inet_addr PerlSock_inet_addr
528# define inet_ntoa PerlSock_inet_ntoa
529# define listen PerlSock_listen
530# define recv PerlSock_recv
531# define recvfrom PerlSock_recvfrom
532# define select PerlSock_select
533# define send PerlSock_send
534# define sendto PerlSock_sendto
535# define sethostent PerlSock_sethostent
536# define setnetent PerlSock_setnetent
537# define setprotoent PerlSock_setprotoent
538# define setservent PerlSock_setservent
539# define setsockopt PerlSock_setsockopt
540# define shutdown PerlSock_shutdown
541# define socket PerlSock_socket
542# define socketpair PerlSock_socketpair
2986a63f 543# endif /* NETWARE && USE_STDIO */
21c5e947
JH
544
545# ifdef USE_SOCKETS_AS_HANDLES
546# undef fd_set
547# undef FD_SET
548# undef FD_CLR
549# undef FD_ISSET
550# undef FD_ZERO
551# define fd_set Perl_fd_set
552# define FD_SET(n,p) PERL_FD_SET(n,p)
553# define FD_CLR(n,p) PERL_FD_CLR(n,p)
554# define FD_ISSET(n,p) PERL_FD_ISSET(n,p)
555# define FD_ZERO(p) PERL_FD_ZERO(p)
556# endif /* USE_SOCKETS_AS_HANDLES */
557
c6af7a1a 558# endif /* NO_XSLOCKS */
acfe0abc 559#endif /* PERL_IMPLICIT_SYS && !PERL_CORE */
b4ba0ab9 560
cfeeb022 561#endif /* _INC_PERL_XSUB_H */ /* include guard */