| 1 | #define ST(off) stack_base[ax + (off)] |
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| 2 | |
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| 3 | #ifdef CAN_PROTOTYPE |
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| 4 | #define XS(name) void name(CV* cv) |
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| 5 | #else |
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| 6 | #define XS(name) void name(cv) CV* cv; |
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| 7 | #endif |
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| 8 | |
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| 9 | #define dXSARGS \ |
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| 10 | dSP; dMARK; \ |
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| 11 | I32 ax = mark - stack_base + 1; \ |
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| 12 | I32 items = sp - mark |
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| 13 | |
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| 14 | #define XSANY CvXSUBANY(cv) |
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| 15 | |
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| 16 | #define dXSI32 I32 ix = XSANY.any_i32 |
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| 17 | |
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| 18 | #define XSRETURN(off) stack_sp = stack_base + ax + ((off) - 1); return |
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| 19 | |
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| 20 | /* Simple macros to put new mortal values onto the stack. */ |
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| 21 | /* Typically used to return values from XS functions. */ |
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| 22 | #define XST_mIV(i,v) (ST(i) = sv_2mortal(newSViv(v)) ) |
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| 23 | #define XST_mNV(i,v) (ST(i) = sv_2mortal(newSVnv(v)) ) |
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| 24 | #define XST_mPV(i,v) (ST(i) = sv_2mortal(newSVpv(v,0))) |
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| 25 | #define XST_mNO(i) (ST(i) = &sv_no ) |
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| 26 | #define XST_mYES(i) (ST(i) = &sv_yes ) |
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| 27 | #define XST_mUNDEF(i) (ST(i) = &sv_undef) |
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| 28 | |
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| 29 | #define XSRETURN_IV(v) STMT_START { XST_mIV(0,v); XSRETURN(1); } STMT_END |
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| 30 | #define XSRETURN_NV(v) STMT_START { XST_mNV(0,v); XSRETURN(1); } STMT_END |
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| 31 | #define XSRETURN_PV(v) STMT_START { XST_mPV(0,v); XSRETURN(1); } STMT_END |
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| 32 | #define XSRETURN_NO STMT_START { XST_mNO(0); XSRETURN(1); } STMT_END |
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| 33 | #define XSRETURN_YES STMT_START { XST_mYES(0); XSRETURN(1); } STMT_END |
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| 34 | #define XSRETURN_UNDEF STMT_START { XST_mUNDEF(0); XSRETURN(1); } STMT_END |
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| 35 | #define XSRETURN_EMPTY STMT_START { XSRETURN(0); } STMT_END |
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| 36 | |
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| 37 | #define newXSproto(a,b,c,d) sv_setpv((SV*)newXS(a,b,c), d) |
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| 38 | |
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| 39 | #ifdef XS_VERSION |
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| 40 | # define XS_VERSION_BOOTCHECK \ |
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| 41 | STMT_START { \ |
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| 42 | char *vn = "", *module = SvPV(ST(0),na); \ |
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| 43 | if (items >= 2) /* version supplied as bootstrap arg */ \ |
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| 44 | Sv = ST(1); \ |
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| 45 | else { \ |
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| 46 | /* XXX GV_ADDWARN */ \ |
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| 47 | Sv = perl_get_sv(form("%s::%s", module, \ |
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| 48 | vn = "XS_VERSION"), FALSE); \ |
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| 49 | if (!Sv || !SvOK(Sv)) \ |
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| 50 | Sv = perl_get_sv(form("%s::%s", module, \ |
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| 51 | vn = "VERSION"), FALSE); \ |
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| 52 | } \ |
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| 53 | if (Sv && (!SvOK(Sv) || strNE(XS_VERSION, SvPV(Sv, na)))) \ |
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| 54 | croak("%s object version %s does not match $%s::%s %_", \ |
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| 55 | module, XS_VERSION, module, vn, Sv); \ |
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| 56 | } STMT_END |
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| 57 | #else |
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| 58 | # define XS_VERSION_BOOTCHECK |
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| 59 | #endif |
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