X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/11343788cbaaede18e3146b5219d2fbdaeaf516e..4fa3f26e6876c535c3a708430a266c39711fbf38:/XSUB.h diff --git a/XSUB.h b/XSUB.h index 0bfb985..1d73fb1 100644 --- a/XSUB.h +++ b/XSUB.h @@ -1,34 +1,201 @@ -#define ST(off) stack_base[ax + (off)] +/* XSUB.h + * + * Copyright (c) 1997-2002, Larry Wall + * + * You may distribute under the terms of either the GNU General Public + * License or the Artistic License, as specified in the README file. + * + */ -#ifdef CAN_PROTOTYPE -#define XS(name) void name(CV* cv) +#ifndef _INC_PERL_XSUB_H +#define _INC_PERL_XSUB_H 1 + +/* first, some documentation for xsubpp-generated items */ + +/* +=head1 Variables created by C and C internal functions + +=for apidoc Amn|char*|CLASS +Variable which is setup by C to indicate the +class name for a C++ XS constructor. This is always a C. See C. + +=for apidoc Amn|(whatever)|RETVAL +Variable which is setup by C to hold the return value for an +XSUB. This is always the proper type for the XSUB. See +L. + +=for apidoc Amn|(whatever)|THIS +Variable which is setup by C to designate the object in a C++ +XSUB. This is always the proper type for the C++ object. See C and +L. + +=for apidoc Amn|I32|ax +Variable which is setup by C to indicate the stack base offset, +used by the C, C and C macros. The C macro +must be called prior to setup the C variable. + +=for apidoc Amn|I32|items +Variable which is setup by C to indicate the number of +items on the stack. See L. + +=for apidoc Amn|I32|ix +Variable which is setup by C to indicate which of an +XSUB's aliases was used to invoke it. See L. + +=for apidoc Am|SV*|ST|int ix +Used to access elements on the XSUB's stack. + +=for apidoc AmU||XS +Macro to declare an XSUB and its C parameter list. This is handled by +C. + +=for apidoc Ams||dAX +Sets up the C variable. +This is usually handled automatically by C by calling C. + +=for apidoc Ams||dITEMS +Sets up the C variable. +This is usually handled automatically by C by calling C. + +=for apidoc Ams||dXSARGS +Sets up stack and mark pointers for an XSUB, calling dSP and dMARK. +Sets up the C and C variables by calling C and C. +This is usually handled automatically by C. + +=for apidoc Ams||dXSI32 +Sets up the C variable for an XSUB which has aliases. This is usually +handled automatically by C. + +=cut +*/ + +#define ST(off) PL_stack_base[ax + (off)] + +#if defined(__CYGWIN__) && defined(USE_DYNAMIC_LOADING) +# define XS(name) __declspec(dllexport) void name(pTHX_ CV* cv) #else -#define XS(name) void name(cv) CV* cv; +# define XS(name) void name(pTHX_ CV* cv) #endif +#define dAX I32 ax = MARK - PL_stack_base + 1 + +#define dITEMS I32 items = SP - MARK + #define dXSARGS \ - dTHR; dSP; dMARK; \ - I32 ax = mark - stack_base + 1; \ - I32 items = sp - mark + dSP; dMARK; \ + dAX; dITEMS + +#define dXSTARG SV * targ = ((PL_op->op_private & OPpENTERSUB_HASTARG) \ + ? PAD_SV(PL_op->op_targ) : sv_newmortal()) + +/* Should be used before final PUSHi etc. if not in PPCODE section. */ +#define XSprePUSH (sp = PL_stack_base + ax - 1) #define XSANY CvXSUBANY(cv) #define dXSI32 I32 ix = XSANY.any_i32 -#define XSRETURN(off) stack_sp = stack_base + ax + ((off) - 1); return +#ifdef __cplusplus +# define XSINTERFACE_CVT(ret,name) ret (*name)(...) +#else +# define XSINTERFACE_CVT(ret,name) ret (*name)() +#endif +#define dXSFUNCTION(ret) XSINTERFACE_CVT(ret,XSFUNCTION) +#define XSINTERFACE_FUNC(ret,cv,f) ((XSINTERFACE_CVT(ret,))(f)) +#define XSINTERFACE_FUNC_SET(cv,f) \ + CvXSUBANY(cv).any_dptr = (void (*) (pTHX_ void*))(f) /* Simple macros to put new mortal values onto the stack. */ /* Typically used to return values from XS functions. */ + +/* +=head1 Stack Manipulation Macros + +=for apidoc Am|void|XST_mIV|int pos|IV iv +Place an integer into the specified position C on the stack. The +value is stored in a new mortal SV. + +=for apidoc Am|void|XST_mNV|int pos|NV nv +Place a double into the specified position C on the stack. The value +is stored in a new mortal SV. + +=for apidoc Am|void|XST_mPV|int pos|char* str +Place a copy of a string into the specified position C on the stack. +The value is stored in a new mortal SV. + +=for apidoc Am|void|XST_mNO|int pos +Place C<&PL_sv_no> into the specified position C on the +stack. + +=for apidoc Am|void|XST_mYES|int pos +Place C<&PL_sv_yes> into the specified position C on the +stack. + +=for apidoc Am|void|XST_mUNDEF|int pos +Place C<&PL_sv_undef> into the specified position C on the +stack. + +=for apidoc Am|void|XSRETURN|int nitems +Return from XSUB, indicating number of items on the stack. This is usually +handled by C. + +=for apidoc Am|void|XSRETURN_IV|IV iv +Return an integer from an XSUB immediately. Uses C. + +=for apidoc Am|void|XSRETURN_NV|NV nv +Return a double from an XSUB immediately. Uses C. + +=for apidoc Am|void|XSRETURN_PV|char* str +Return a copy of a string from an XSUB immediately. Uses C. + +=for apidoc Ams||XSRETURN_NO +Return C<&PL_sv_no> from an XSUB immediately. Uses C. + +=for apidoc Ams||XSRETURN_YES +Return C<&PL_sv_yes> from an XSUB immediately. Uses C. + +=for apidoc Ams||XSRETURN_UNDEF +Return C<&PL_sv_undef> from an XSUB immediately. Uses C. + +=for apidoc Ams||XSRETURN_EMPTY +Return an empty list from an XSUB immediately. + +=head1 Variables created by C and C internal functions + +=for apidoc AmU||newXSproto +Used by C to hook up XSUBs as Perl subs. Adds Perl prototypes to +the subs. + +=for apidoc AmU||XS_VERSION +The version identifier for an XS module. This is usually +handled automatically by C. See C. + +=for apidoc Ams||XS_VERSION_BOOTCHECK +Macro to verify that a PM module's $VERSION variable matches the XS +module's C variable. This is usually handled automatically by +C. See L. + +=cut +*/ + #define XST_mIV(i,v) (ST(i) = sv_2mortal(newSViv(v)) ) #define XST_mNV(i,v) (ST(i) = sv_2mortal(newSVnv(v)) ) #define XST_mPV(i,v) (ST(i) = sv_2mortal(newSVpv(v,0))) -#define XST_mNO(i) (ST(i) = &sv_no ) -#define XST_mYES(i) (ST(i) = &sv_yes ) -#define XST_mUNDEF(i) (ST(i) = &sv_undef) - +#define XST_mPVN(i,v,n) (ST(i) = sv_2mortal(newSVpvn(v,n))) +#define XST_mNO(i) (ST(i) = &PL_sv_no ) +#define XST_mYES(i) (ST(i) = &PL_sv_yes ) +#define XST_mUNDEF(i) (ST(i) = &PL_sv_undef) + +#define XSRETURN(off) \ + STMT_START { \ + PL_stack_sp = PL_stack_base + ax + ((off) - 1); \ + return; \ + } STMT_END + #define XSRETURN_IV(v) STMT_START { XST_mIV(0,v); XSRETURN(1); } STMT_END #define XSRETURN_NV(v) STMT_START { XST_mNV(0,v); XSRETURN(1); } STMT_END #define XSRETURN_PV(v) STMT_START { XST_mPV(0,v); XSRETURN(1); } STMT_END +#define XSRETURN_PVN(v,n) STMT_START { XST_mPVN(0,v,n); XSRETURN(1); } STMT_END #define XSRETURN_NO STMT_START { XST_mNO(0); XSRETURN(1); } STMT_END #define XSRETURN_YES STMT_START { XST_mYES(0); XSRETURN(1); } STMT_END #define XSRETURN_UNDEF STMT_START { XST_mUNDEF(0); XSRETURN(1); } STMT_END @@ -37,20 +204,268 @@ #define newXSproto(a,b,c,d) sv_setpv((SV*)newXS(a,b,c), d) #ifdef XS_VERSION -# define XS_VERSION_BOOTCHECK \ - STMT_START { \ - char vn[255], *module = SvPV(ST(0),na); \ - if (items >= 2) /* version supplied as bootstrap arg */ \ - Sv=ST(1); \ - else { /* read version from module::VERSION */ \ - sprintf(vn,"%s::VERSION", module); \ - Sv = perl_get_sv(vn, FALSE); /* XXX GV_ADDWARN */ \ - } \ - if (Sv && (!SvOK(Sv) || strNE(XS_VERSION, SvPV(Sv,na))) ) \ - croak("%s object version %s does not match %s.pm $VERSION %s", \ - module,XS_VERSION, module,(Sv && SvOK(Sv))?SvPV(Sv,na):"(undef)");\ +# define XS_VERSION_BOOTCHECK \ + STMT_START { \ + SV *tmpsv; STRLEN n_a; \ + char *vn = Nullch, *module = SvPV(ST(0),n_a); \ + if (items >= 2) /* version supplied as bootstrap arg */ \ + tmpsv = ST(1); \ + else { \ + /* XXX GV_ADDWARN */ \ + tmpsv = get_sv(Perl_form(aTHX_ "%s::%s", module, \ + vn = "XS_VERSION"), FALSE); \ + if (!tmpsv || !SvOK(tmpsv)) \ + tmpsv = get_sv(Perl_form(aTHX_ "%s::%s", module, \ + vn = "VERSION"), FALSE); \ + } \ + if (tmpsv && (!SvOK(tmpsv) || strNE(XS_VERSION, SvPV(tmpsv, n_a)))) \ + Perl_croak(aTHX_ "%s object version %s does not match %s%s%s%s %"SVf,\ + module, XS_VERSION, \ + vn ? "$" : "", vn ? module : "", vn ? "::" : "", \ + vn ? vn : "bootstrap parameter", tmpsv); \ } STMT_END #else -# define XS_VERSION_BOOTCHECK +# define XS_VERSION_BOOTCHECK +#endif + +#if 1 /* for compatibility */ +# define VTBL_sv &PL_vtbl_sv +# define VTBL_env &PL_vtbl_env +# define VTBL_envelem &PL_vtbl_envelem +# define VTBL_sig &PL_vtbl_sig +# define VTBL_sigelem &PL_vtbl_sigelem +# define VTBL_pack &PL_vtbl_pack +# define VTBL_packelem &PL_vtbl_packelem +# define VTBL_dbline &PL_vtbl_dbline +# define VTBL_isa &PL_vtbl_isa +# define VTBL_isaelem &PL_vtbl_isaelem +# define VTBL_arylen &PL_vtbl_arylen +# define VTBL_glob &PL_vtbl_glob +# define VTBL_mglob &PL_vtbl_mglob +# define VTBL_nkeys &PL_vtbl_nkeys +# define VTBL_taint &PL_vtbl_taint +# define VTBL_substr &PL_vtbl_substr +# define VTBL_vec &PL_vtbl_vec +# define VTBL_pos &PL_vtbl_pos +# define VTBL_bm &PL_vtbl_bm +# define VTBL_fm &PL_vtbl_fm +# define VTBL_uvar &PL_vtbl_uvar +# define VTBL_defelem &PL_vtbl_defelem +# define VTBL_regexp &PL_vtbl_regexp +# define VTBL_regdata &PL_vtbl_regdata +# define VTBL_regdatum &PL_vtbl_regdatum +# ifdef USE_LOCALE_COLLATE +# define VTBL_collxfrm &PL_vtbl_collxfrm +# endif +# define VTBL_amagic &PL_vtbl_amagic +# define VTBL_amagicelem &PL_vtbl_amagicelem #endif +#include "perlapi.h" + +#if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_NO_GET_CONTEXT) && !defined(PERL_CORE) +# undef aTHX +# undef aTHX_ +# define aTHX PERL_GET_THX +# define aTHX_ aTHX, +#endif + +#if defined(PERL_IMPLICIT_SYS) && !defined(PERL_CORE) +# ifndef NO_XSLOCKS +# if defined (NETWARE) && defined (USE_STDIO) +# define times PerlProc_times +# define setuid PerlProc_setuid +# define setgid PerlProc_setgid +# define getpid PerlProc_getpid +# define pause PerlProc_pause +# define exit PerlProc_exit +# define _exit PerlProc__exit +# else +# undef closedir +# undef opendir +# undef stdin +# undef stdout +# undef stderr +# undef feof +# undef ferror +# undef fgetpos +# undef ioctl +# undef getlogin +# undef setjmp +# undef getc +# undef ungetc +# undef fileno + +/* Following symbols were giving redefinition errors while building extensions - sgp 17th Oct 2000 */ +#ifdef NETWARE +# undef readdir +# undef fstat +# undef stat +# undef longjmp +# undef endhostent +# undef endnetent +# undef endprotoent +# undef endservent +# undef gethostbyaddr +# undef gethostbyname +# undef gethostent +# undef getnetbyaddr +# undef getnetbyname +# undef getnetent +# undef getprotobyname +# undef getprotobynumber +# undef getprotoent +# undef getservbyname +# undef getservbyport +# undef getservent +# undef inet_ntoa +# undef sethostent +# undef setnetent +# undef setprotoent +# undef setservent +#endif /* NETWARE */ + +# undef socketpair + +# define mkdir PerlDir_mkdir +# define chdir PerlDir_chdir +# define rmdir PerlDir_rmdir +# define closedir PerlDir_close +# define opendir PerlDir_open +# define readdir PerlDir_read +# define rewinddir PerlDir_rewind +# define seekdir PerlDir_seek +# define telldir PerlDir_tell +# define putenv PerlEnv_putenv +# define getenv PerlEnv_getenv +# define uname PerlEnv_uname +# define stdin PerlIO_stdin() +# define stdout PerlIO_stdout() +# define stderr PerlIO_stderr() +# define fopen PerlIO_open +# define fclose PerlIO_close +# define feof PerlIO_eof +# define ferror PerlIO_error +# define fclearerr PerlIO_clearerr +# define getc PerlIO_getc +# define fputc(c, f) PerlIO_putc(f,c) +# define fputs(s, f) PerlIO_puts(f,s) +# define fflush PerlIO_flush +# define ungetc(c, f) PerlIO_ungetc((f),(c)) +# define fileno PerlIO_fileno +# define fdopen PerlIO_fdopen +# define freopen PerlIO_reopen +# define fread(b,s,c,f) PerlIO_read((f),(b),(s*c)) +# define fwrite(b,s,c,f) PerlIO_write((f),(b),(s*c)) +# define setbuf PerlIO_setbuf +# define setvbuf PerlIO_setvbuf +# define setlinebuf PerlIO_setlinebuf +# define stdoutf PerlIO_stdoutf +# define vfprintf PerlIO_vprintf +# define ftell PerlIO_tell +# define fseek PerlIO_seek +# define fgetpos PerlIO_getpos +# define fsetpos PerlIO_setpos +# define frewind PerlIO_rewind +# define tmpfile PerlIO_tmpfile +# define access PerlLIO_access +# define chmod PerlLIO_chmod +# define chsize PerlLIO_chsize +# define close PerlLIO_close +# define dup PerlLIO_dup +# define dup2 PerlLIO_dup2 +# define flock PerlLIO_flock +# define fstat PerlLIO_fstat +# define ioctl PerlLIO_ioctl +# define isatty PerlLIO_isatty +# define link PerlLIO_link +# define lseek PerlLIO_lseek +# define lstat PerlLIO_lstat +# define mktemp PerlLIO_mktemp +# define open PerlLIO_open +# define read PerlLIO_read +# define rename PerlLIO_rename +# define setmode PerlLIO_setmode +# define stat(buf,sb) PerlLIO_stat(buf,sb) +# define tmpnam PerlLIO_tmpnam +# define umask PerlLIO_umask +# define unlink PerlLIO_unlink +# define utime PerlLIO_utime +# define write PerlLIO_write +# define malloc PerlMem_malloc +# define realloc PerlMem_realloc +# define free PerlMem_free +# define abort PerlProc_abort +# define exit PerlProc_exit +# define _exit PerlProc__exit +# define execl PerlProc_execl +# define execv PerlProc_execv +# define execvp PerlProc_execvp +# define getuid PerlProc_getuid +# define geteuid PerlProc_geteuid +# define getgid PerlProc_getgid +# define getegid PerlProc_getegid +# define getlogin PerlProc_getlogin +# define kill PerlProc_kill +# define killpg PerlProc_killpg +# define pause PerlProc_pause +# define popen PerlProc_popen +# define pclose PerlProc_pclose +# define pipe PerlProc_pipe +# define setuid PerlProc_setuid +# define setgid PerlProc_setgid +# define sleep PerlProc_sleep +# define times PerlProc_times +# define wait PerlProc_wait +# define setjmp PerlProc_setjmp +# define longjmp PerlProc_longjmp +# define signal PerlProc_signal +# define getpid PerlProc_getpid +# define htonl PerlSock_htonl +# define htons PerlSock_htons +# define ntohl PerlSock_ntohl +# define ntohs PerlSock_ntohs +# define accept PerlSock_accept +# define bind PerlSock_bind +# define connect PerlSock_connect +# define endhostent PerlSock_endhostent +# define endnetent PerlSock_endnetent +# define endprotoent PerlSock_endprotoent +# define endservent PerlSock_endservent +# define gethostbyaddr PerlSock_gethostbyaddr +# define gethostbyname PerlSock_gethostbyname +# define gethostent PerlSock_gethostent +# define gethostname PerlSock_gethostname +# define getnetbyaddr PerlSock_getnetbyaddr +# define getnetbyname PerlSock_getnetbyname +# define getnetent PerlSock_getnetent +# define getpeername PerlSock_getpeername +# define getprotobyname PerlSock_getprotobyname +# define getprotobynumber PerlSock_getprotobynumber +# define getprotoent PerlSock_getprotoent +# define getservbyname PerlSock_getservbyname +# define getservbyport PerlSock_getservbyport +# define getservent PerlSock_getservent +# define getsockname PerlSock_getsockname +# define getsockopt PerlSock_getsockopt +# define inet_addr PerlSock_inet_addr +# define inet_ntoa PerlSock_inet_ntoa +# define listen PerlSock_listen +# define recv PerlSock_recv +# define recvfrom PerlSock_recvfrom +# define select PerlSock_select +# define send PerlSock_send +# define sendto PerlSock_sendto +# define sethostent PerlSock_sethostent +# define setnetent PerlSock_setnetent +# define setprotoent PerlSock_setprotoent +# define setservent PerlSock_setservent +# define setsockopt PerlSock_setsockopt +# define shutdown PerlSock_shutdown +# define socket PerlSock_socket +# define socketpair PerlSock_socketpair +# endif /* NETWARE && USE_STDIO */ +# endif /* NO_XSLOCKS */ +#endif /* PERL_IMPLICIT_SYS && !PERL_CORE */ + +#endif /* _INC_PERL_XSUB_H */ /* include guard */