1 #define ST(off) stack_base[ax + (off)] 2 3 #ifdef CAN_PROTOTYPE 4 #define XS(name) void name(CV* cv) 5 #else 6 #define XS(name) void name(cv) CV* cv; 7 #endif 8 9 #define dXSARGS \ 10 dSP; dMARK; \ 11 I32 ax = mark - stack_base + 1; \ 12 I32 items = sp - mark 13 14 #define XSANY CvXSUBANY(cv) 15 16 #define dXSI32 I32 ix = XSANY.any_i32 17 18 #define XSRETURN(off) stack_sp = stack_base + ax + ((off) - 1); return 19 20 /* Simple macros to put new mortal values onto the stack. */ 21 /* Typically used to return values from XS functions. */ 22 #define XST_mIV(i,v) (ST(i) = sv_2mortal(newSViv(v)) ) 23 #define XST_mNV(i,v) (ST(i) = sv_2mortal(newSVnv(v)) ) 24 #define XST_mPV(i,v) (ST(i) = sv_2mortal(newSVpv(v,0))) 25 #define XST_mNO(i) (ST(i) = &sv_no ) 26 #define XST_mYES(i) (ST(i) = &sv_yes ) 27 #define XST_mUNDEF(i) (ST(i) = &sv_undef) 28 29 #define XSRETURN_IV(v) STMT_START { XST_mIV(0,v); XSRETURN(1); } STMT_END 30 #define XSRETURN_NV(v) STMT_START { XST_mNV(0,v); XSRETURN(1); } STMT_END 31 #define XSRETURN_PV(v) STMT_START { XST_mPV(0,v); XSRETURN(1); } STMT_END 32 #define XSRETURN_NO STMT_START { XST_mNO(0); XSRETURN(1); } STMT_END 33 #define XSRETURN_YES STMT_START { XST_mYES(0); XSRETURN(1); } STMT_END 34 #define XSRETURN_UNDEF STMT_START { XST_mUNDEF(0); XSRETURN(1); } STMT_END 35 #define XSRETURN_EMPTY STMT_START { XSRETURN(0); } STMT_END 36 37 #define newXSproto(a,b,c,d) sv_setpv((SV*)newXS(a,b,c), d) 38 39 #ifdef XS_VERSION 40 # define XS_VERSION_BOOTCHECK \ 41 STMT_START { \ 42 char vn[255], *module = SvPV(ST(0),na); \ 43 if (items >= 2) /* version supplied as bootstrap arg */ \ 44 Sv=ST(1); \ 45 else { /* read version from module::VERSION */ \ 46 sprintf(vn,"%s::VERSION", module); \ 47 Sv = perl_get_sv(vn, FALSE); /* XXX GV_ADDWARN */ \ 48 } \ 49 if (Sv && (!SvOK(Sv) || strNE(XS_VERSION, SvPV(Sv,na))) ) \ 50 croak("%s object version %s does not match %s.pm $VERSION %s", \ 51 module,XS_VERSION, module,(Sv && SvOK(Sv))?SvPV(Sv,na):"(undef)");\ 52 } STMT_END 53 #else 54 # define XS_VERSION_BOOTCHECK 55 #endif 56 57