lib/perl5/5.6.1/msys/CORE/XSUB.h

   1 #ifndef _INC_PERL_XSUB_H
   2 #define _INC_PERL_XSUB_H 1
   3
   4 /* first, some documentation for xsubpp-generated items */
   5
   6 /*
   7 =for apidoc Amn|char*|CLASS
   8 Variable which is setup by C<xsubpp> to indicate the
   9 class name for a C++ XS constructor.  This is always a C<char*>.  See C<THIS>.
  10
  11 =for apidoc Amn|(whatever)|RETVAL
  12 Variable which is setup by C<xsubpp> to hold the return value for an
  13 XSUB. This is always the proper type for the XSUB. See
  14 L<perlxs/"The RETVAL Variable">.
  15
  16 =for apidoc Amn|(whatever)|THIS
  17 Variable which is setup by C<xsubpp> to designate the object in a C++
  18 XSUB.  This is always the proper type for the C++ object.  See C<CLASS> and
  19 L<perlxs/"Using XS With C++">.
  20
  21 =for apidoc Amn|I32|items
  22 Variable which is setup by C<xsubpp> to indicate the number of
  23 items on the stack.  See L<perlxs/"Variable-length Parameter Lists">.
  24
  25 =for apidoc Amn|I32|ix
  26 Variable which is setup by C<xsubpp> to indicate which of an
  27 XSUB's aliases was used to invoke it.  See L<perlxs/"The ALIAS: Keyword">.
  28
  29 =for apidoc Am|SV*|ST|int ix
  30 Used to access elements on the XSUB's stack.
  31
  32 =for apidoc AmU||XS
  33 Macro to declare an XSUB and its C parameter list.  This is handled by
  34 C<xsubpp>.
  35
  36 =for apidoc Ams||dXSARGS
  37 Sets up stack and mark pointers for an XSUB, calling dSP and dMARK.  This
  38 is usually handled automatically by C<xsubpp>.  Declares the C<items>
  39 variable to indicate the number of items on the stack.
  40
  41 =for apidoc Ams||dXSI32
  42 Sets up the C<ix> variable for an XSUB which has aliases.  This is usually
  43 handled automatically by C<xsubpp>.
  44
  45 =cut
  46 */
  47
  48 #define ST(off) PL_stack_base[ax + (off)]
  49
  50 #if (defined(__CYGWIN__) || defined(__MSYS__)) && defined(USE_DYNAMIC_LOADING)
  51 #  define XS(name) __declspec(dllexport) void name(pTHXo_ CV* cv)
  52 #else
  53 #  define XS(name) void name(pTHXo_ CV* cv)
  54 #endif
  55
  56 #define dXSARGS                         \
  57         dSP; dMARK;                     \
  58         I32 ax = mark - PL_stack_base + 1;      \
  59         I32 items = sp - mark
  60
  61 #define dXSTARG SV * targ = ((PL_op->op_private & OPpENTERSUB_HASTARG) \
  62                              ? PAD_SV(PL_op->op_targ) : sv_newmortal())
  63
  64 /* Should be used before final PUSHi etc. if not in PPCODE section. */
  65 #define XSprePUSH (sp = PL_stack_base + ax - 1)
  66
  67 #define XSANY CvXSUBANY(cv)
  68
  69 #define dXSI32 I32 ix = XSANY.any_i32
  70
  71 #ifdef __cplusplus
  72 #  define XSINTERFACE_CVT(ret,name) ret (*name)(...)
  73 #else
  74 #  define XSINTERFACE_CVT(ret,name) ret (*name)()
  75 #endif
  76 #define dXSFUNCTION(ret)                XSINTERFACE_CVT(ret,XSFUNCTION)
  77 #define XSINTERFACE_FUNC(ret,cv,f)      ((XSINTERFACE_CVT(ret,cv))(f))
  78 #define XSINTERFACE_FUNC_SET(cv,f)      \
  79                 CvXSUBANY(cv).any_dptr = (void (*) (pTHXo_ void*))(f)
  80
  81 /* Simple macros to put new mortal values onto the stack.   */
  82 /* Typically used to return values from XS functions.       */
  83
  84 /*
  85 =for apidoc Am|void|XST_mIV|int pos|IV iv
  86 Place an integer into the specified position C<pos> on the stack.  The
  87 value is stored in a new mortal SV.
  88
  89 =for apidoc Am|void|XST_mNV|int pos|NV nv
  90 Place a double into the specified position C<pos> on the stack.  The value
  91 is stored in a new mortal SV.
  92
  93 =for apidoc Am|void|XST_mPV|int pos|char* str
  94 Place a copy of a string into the specified position C<pos> on the stack.
  95 The value is stored in a new mortal SV.
  96
  97 =for apidoc Am|void|XST_mNO|int pos
  98 Place C<&PL_sv_no> into the specified position C<pos> on the
  99 stack.
 100
 101 =for apidoc Am|void|XST_mYES|int pos
 102 Place C<&PL_sv_yes> into the specified position C<pos> on the
 103 stack.
 104
 105 =for apidoc Am|void|XST_mUNDEF|int pos
 106 Place C<&PL_sv_undef> into the specified position C<pos> on the
 107 stack.
 108
 109 =for apidoc Am|void|XSRETURN|int nitems
 110 Return from XSUB, indicating number of items on the stack.  This is usually
 111 handled by C<xsubpp>.
 112
 113 =for apidoc Am|void|XSRETURN_IV|IV iv
 114 Return an integer from an XSUB immediately.  Uses C<XST_mIV>.
 115
 116 =for apidoc Am|void|XSRETURN_NV|NV nv
 117 Return an double from an XSUB immediately.  Uses C<XST_mNV>.
 118
 119 =for apidoc Am|void|XSRETURN_PV|char* str
 120 Return a copy of a string from an XSUB immediately.  Uses C<XST_mPV>.
 121
 122 =for apidoc Ams||XSRETURN_NO
 123 Return C<&PL_sv_no> from an XSUB immediately.  Uses C<XST_mNO>.
 124
 125 =for apidoc Ams||XSRETURN_YES
 126 Return C<&PL_sv_yes> from an XSUB immediately.  Uses C<XST_mYES>.
 127
 128 =for apidoc Ams||XSRETURN_UNDEF
 129 Return C<&PL_sv_undef> from an XSUB immediately.  Uses C<XST_mUNDEF>.
 130
 131 =for apidoc Ams||XSRETURN_EMPTY
 132 Return an empty list from an XSUB immediately.
 133
 134 =for apidoc AmU||newXSproto
 135 Used by C<xsubpp> to hook up XSUBs as Perl subs.  Adds Perl prototypes to
 136 the subs.
 137
 138 =for apidoc AmU||XS_VERSION
 139 The version identifier for an XS module.  This is usually
 140 handled automatically by C<ExtUtils::MakeMaker>.  See C<XS_VERSION_BOOTCHECK>.
 141
 142 =for apidoc Ams||XS_VERSION_BOOTCHECK
 143 Macro to verify that a PM module's $VERSION variable matches the XS
 144 module's C<XS_VERSION> variable.  This is usually handled automatically by
 145 C<xsubpp>.  See L<perlxs/"The VERSIONCHECK: Keyword">.
 146
 147 =cut
 148 */
 149
 150 #define XST_mIV(i,v)  (ST(i) = sv_2mortal(newSViv(v))  )
 151 #define XST_mNV(i,v)  (ST(i) = sv_2mortal(newSVnv(v))  )
 152 #define XST_mPV(i,v)  (ST(i) = sv_2mortal(newSVpv(v,0)))
 153 #define XST_mPVN(i,v,n)  (ST(i) = sv_2mortal(newSVpvn(v,n)))
 154 #define XST_mNO(i)    (ST(i) = &PL_sv_no   )
 155 #define XST_mYES(i)   (ST(i) = &PL_sv_yes  )
 156 #define XST_mUNDEF(i) (ST(i) = &PL_sv_undef)
 157
 158 #define XSRETURN(off)                                   \
 159     STMT_START {                                        \
 160         PL_stack_sp = PL_stack_base + ax + ((off) - 1); \
 161         return;                                         \
 162     } STMT_END
 163
 164 #define XSRETURN_IV(v) STMT_START { XST_mIV(0,v);  XSRETURN(1); } STMT_END
 165 #define XSRETURN_NV(v) STMT_START { XST_mNV(0,v);  XSRETURN(1); } STMT_END
 166 #define XSRETURN_PV(v) STMT_START { XST_mPV(0,v);  XSRETURN(1); } STMT_END
 167 #define XSRETURN_PVN(v,n) STMT_START { XST_mPVN(0,v,n);  XSRETURN(1); } STMT_END
 168 #define XSRETURN_NO    STMT_START { XST_mNO(0);    XSRETURN(1); } STMT_END
 169 #define XSRETURN_YES   STMT_START { XST_mYES(0);   XSRETURN(1); } STMT_END
 170 #define XSRETURN_UNDEF STMT_START { XST_mUNDEF(0); XSRETURN(1); } STMT_END
 171 #define XSRETURN_EMPTY STMT_START {                XSRETURN(0); } STMT_END
 172
 173 #define newXSproto(a,b,c,d)     sv_setpv((SV*)newXS(a,b,c), d)
 174
 175 #ifdef XS_VERSION
 176 #  define XS_VERSION_BOOTCHECK \
 177     STMT_START {                                                        \
 178         SV *tmpsv; STRLEN n_a;                                          \
 179         char *vn = Nullch, *module = SvPV(ST(0),n_a);                   \
 180         if (items >= 2)  /* version supplied as bootstrap arg */        \
 181             tmpsv = ST(1);                                              \
 182         else {                                                          \
 183             /* XXX GV_ADDWARN */                                        \
 184             tmpsv = get_sv(Perl_form(aTHX_ "%s::%s", module,            \
 185                                 vn = "XS_VERSION"), FALSE);             \
 186             if (!tmpsv || !SvOK(tmpsv))                                 \
 187                 tmpsv = get_sv(Perl_form(aTHX_ "%s::%s", module,        \
 188                                     vn = "VERSION"), FALSE);            \
 189         }                                                               \
 190         if (tmpsv && (!SvOK(tmpsv) || strNE(XS_VERSION, SvPV(tmpsv, n_a))))     \
 191             Perl_croak(aTHX_ "%s object version %s does not match %s%s%s%s %"SVf,\
 192                   module, XS_VERSION,                                   \
 193                   vn ? "$" : "", vn ? module : "", vn ? "::" : "",      \
 194                   vn ? vn : "bootstrap parameter", tmpsv);              \
 195     } STMT_END
 196 #else
 197 #  define XS_VERSION_BOOTCHECK
 198 #endif
 199
 200 #if 1           /* for compatibility */
 201 #  define VTBL_sv               &PL_vtbl_sv
 202 #  define VTBL_env              &PL_vtbl_env
 203 #  define VTBL_envelem          &PL_vtbl_envelem
 204 #  define VTBL_sig              &PL_vtbl_sig
 205 #  define VTBL_sigelem          &PL_vtbl_sigelem
 206 #  define VTBL_pack             &PL_vtbl_pack
 207 #  define VTBL_packelem         &PL_vtbl_packelem
 208 #  define VTBL_dbline           &PL_vtbl_dbline
 209 #  define VTBL_isa              &PL_vtbl_isa
 210 #  define VTBL_isaelem          &PL_vtbl_isaelem
 211 #  define VTBL_arylen           &PL_vtbl_arylen
 212 #  define VTBL_glob             &PL_vtbl_glob
 213 #  define VTBL_mglob            &PL_vtbl_mglob
 214 #  define VTBL_nkeys            &PL_vtbl_nkeys
 215 #  define VTBL_taint            &PL_vtbl_taint
 216 #  define VTBL_substr           &PL_vtbl_substr
 217 #  define VTBL_vec              &PL_vtbl_vec
 218 #  define VTBL_pos              &PL_vtbl_pos
 219 #  define VTBL_bm               &PL_vtbl_bm
 220 #  define VTBL_fm               &PL_vtbl_fm
 221 #  define VTBL_uvar             &PL_vtbl_uvar
 222 #  define VTBL_defelem          &PL_vtbl_defelem
 223 #  define VTBL_regexp           &PL_vtbl_regexp
 224 #  define VTBL_regdata          &PL_vtbl_regdata
 225 #  define VTBL_regdatum         &PL_vtbl_regdatum
 226 #  ifdef USE_LOCALE_COLLATE
 227 #    define VTBL_collxfrm       &PL_vtbl_collxfrm
 228 #  endif
 229 #  define VTBL_amagic           &PL_vtbl_amagic
 230 #  define VTBL_amagicelem       &PL_vtbl_amagicelem
 231 #endif
 232
 233 #include "perlapi.h"
 234 #include "objXSUB.h"
 235
 236 #if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_NO_GET_CONTEXT) && !defined(PERL_CORE)
 237 #  undef aTHX
 238 #  undef aTHX_
 239 #  define aTHX          PERL_GET_THX
 240 #  define aTHX_         aTHX,
 241 #endif
 242
 243 #if (defined(PERL_CAPI) || defined(PERL_IMPLICIT_SYS)) && !defined(PERL_CORE)
 244 #  ifndef NO_XSLOCKS
 245 #    undef closedir
 246 #    undef opendir
 247 #    undef stdin
 248 #    undef stdout
 249 #    undef stderr
 250 #    undef feof
 251 #    undef ferror
 252 #    undef fgetpos
 253 #    undef ioctl
 254 #    undef getlogin
 255 #    undef setjmp
 256 #    undef getc
 257 #    undef ungetc
 258 #    undef fileno
 259
 260 #    define mkdir               PerlDir_mkdir
 261 #    define chdir               PerlDir_chdir
 262 #    define rmdir               PerlDir_rmdir
 263 #    define closedir            PerlDir_close
 264 #    define opendir             PerlDir_open
 265 #    define readdir             PerlDir_read
 266 #    define rewinddir           PerlDir_rewind
 267 #    define seekdir             PerlDir_seek
 268 #    define telldir             PerlDir_tell
 269 #    define putenv              PerlEnv_putenv
 270 #    define getenv              PerlEnv_getenv
 271 #    define uname               PerlEnv_uname
 272 #    define stdin               PerlIO_stdin()
 273 #    define stdout              PerlIO_stdout()
 274 #    define stderr              PerlIO_stderr()
 275 #    define fopen               PerlIO_open
 276 #    define fclose              PerlIO_close
 277 #    define feof                PerlIO_eof
 278 #    define ferror              PerlIO_error
 279 #    define fclearerr           PerlIO_clearerr
 280 #    define getc                PerlIO_getc
 281 #    define fputc(c, f)         PerlIO_putc(f,c)
 282 #    define fputs(s, f)         PerlIO_puts(f,s)
 283 #    define fflush              PerlIO_flush
 284 #    define ungetc(c, f)        PerlIO_ungetc((f),(c))
 285 #    define fileno              PerlIO_fileno
 286 #    define fdopen              PerlIO_fdopen
 287 #    define freopen             PerlIO_reopen
 288 #    define fread(b,s,c,f)      PerlIO_read((f),(b),(s*c))
 289 #    define fwrite(b,s,c,f)     PerlIO_write((f),(b),(s*c))
 290 #    define setbuf              PerlIO_setbuf
 291 #    define setvbuf             PerlIO_setvbuf
 292 #    define setlinebuf          PerlIO_setlinebuf
 293 #    define stdoutf             PerlIO_stdoutf
 294 #    define vfprintf            PerlIO_vprintf
 295 #    define ftell               PerlIO_tell
 296 #    define fseek               PerlIO_seek
 297 #    define fgetpos             PerlIO_getpos
 298 #    define fsetpos             PerlIO_setpos
 299 #    define frewind             PerlIO_rewind
 300 #    define tmpfile             PerlIO_tmpfile
 301 #    define access              PerlLIO_access
 302 #    define chmod               PerlLIO_chmod
 303 #    define chsize              PerlLIO_chsize
 304 #    define close               PerlLIO_close
 305 #    define dup                 PerlLIO_dup
 306 #    define dup2                PerlLIO_dup2
 307 #    define flock               PerlLIO_flock
 308 #    define fstat               PerlLIO_fstat
 309 #    define ioctl               PerlLIO_ioctl
 310 #    define isatty              PerlLIO_isatty
 311 #    define link                PerlLIO_link
 312 #    define lseek               PerlLIO_lseek
 313 #    define lstat               PerlLIO_lstat
 314 #    define mktemp              PerlLIO_mktemp
 315 #    define open                PerlLIO_open
 316 #    define read                PerlLIO_read
 317 #    define rename              PerlLIO_rename
 318 #    define setmode             PerlLIO_setmode
 319 #    define stat(buf,sb)        PerlLIO_stat(buf,sb)
 320 #    define tmpnam              PerlLIO_tmpnam
 321 #    define umask               PerlLIO_umask
 322 #    define unlink              PerlLIO_unlink
 323 #    define utime               PerlLIO_utime
 324 #    define write               PerlLIO_write
 325 #    define malloc              PerlMem_malloc
 326 #    define realloc             PerlMem_realloc
 327 #    define free                PerlMem_free
 328 #    define abort               PerlProc_abort
 329 #    define exit                PerlProc_exit
 330 #    define _exit               PerlProc__exit
 331 #    define execl               PerlProc_execl
 332 #    define execv               PerlProc_execv
 333 #    define execvp              PerlProc_execvp
 334 #    define getuid              PerlProc_getuid
 335 #    define geteuid             PerlProc_geteuid
 336 #    define getgid              PerlProc_getgid
 337 #    define getegid             PerlProc_getegid
 338 #    define getlogin            PerlProc_getlogin
 339 #    define kill                PerlProc_kill
 340 #    define killpg              PerlProc_killpg
 341 #    define pause               PerlProc_pause
 342 #    define popen               PerlProc_popen
 343 #    define pclose              PerlProc_pclose
 344 #    define pipe                PerlProc_pipe
 345 #    define setuid              PerlProc_setuid
 346 #    define setgid              PerlProc_setgid
 347 #    define sleep               PerlProc_sleep
 348 #    define times               PerlProc_times
 349 #    define wait                PerlProc_wait
 350 #    define setjmp              PerlProc_setjmp
 351 #    define longjmp             PerlProc_longjmp
 352 #    define signal              PerlProc_signal
 353 #    define getpid              PerlProc_getpid
 354 #    define htonl               PerlSock_htonl
 355 #    define htons               PerlSock_htons
 356 #    define ntohl               PerlSock_ntohl
 357 #    define ntohs               PerlSock_ntohs
 358 #    define accept              PerlSock_accept
 359 #    define bind                PerlSock_bind
 360 #    define connect             PerlSock_connect
 361 #    define endhostent          PerlSock_endhostent
 362 #    define endnetent           PerlSock_endnetent
 363 #    define endprotoent         PerlSock_endprotoent
 364 #    define endservent          PerlSock_endservent
 365 #    define gethostbyaddr       PerlSock_gethostbyaddr
 366 #    define gethostbyname       PerlSock_gethostbyname
 367 #    define gethostent          PerlSock_gethostent
 368 #    define gethostname         PerlSock_gethostname
 369 #    define getnetbyaddr        PerlSock_getnetbyaddr
 370 #    define getnetbyname        PerlSock_getnetbyname
 371 #    define getnetent           PerlSock_getnetent
 372 #    define getpeername         PerlSock_getpeername
 373 #    define getprotobyname      PerlSock_getprotobyname
 374 #    define getprotobynumber    PerlSock_getprotobynumber
 375 #    define getprotoent         PerlSock_getprotoent
 376 #    define getservbyname       PerlSock_getservbyname
 377 #    define getservbyport       PerlSock_getservbyport
 378 #    define getservent          PerlSock_getservent
 379 #    define getsockname         PerlSock_getsockname
 380 #    define getsockopt          PerlSock_getsockopt
 381 #    define inet_addr           PerlSock_inet_addr
 382 #    define inet_ntoa           PerlSock_inet_ntoa
 383 #    define listen              PerlSock_listen
 384 #    define recv                PerlSock_recv
 385 #    define recvfrom            PerlSock_recvfrom
 386 #    define select              PerlSock_select
 387 #    define send                PerlSock_send
 388 #    define sendto              PerlSock_sendto
 389 #    define sethostent          PerlSock_sethostent
 390 #    define setnetent           PerlSock_setnetent
 391 #    define setprotoent         PerlSock_setprotoent
 392 #    define setservent          PerlSock_setservent
 393 #    define setsockopt          PerlSock_setsockopt
 394 #    define shutdown            PerlSock_shutdown
 395 #    define socket              PerlSock_socket
 396 #    define socketpair          PerlSock_socketpair
 397 #  endif  /* NO_XSLOCKS */
 398 #endif  /* PERL_CAPI */
 399
 400 #endif /* _INC_PERL_XSUB_H */           /* include guard */