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1 | #define ST(off) stack_base[ax + (off)] |
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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 | |
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9 | #if defined(WIN32) && defined(__GNUC__) |
10 | #define FORCE_ARG_STRING(x) #x |
11 | #else |
12 | #define FORCE_ARG_STRING(x) x |
13 | #endif |
14 | |
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15 | #define dXSARGS \ |
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16 | dSP; dMARK; \ |
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17 | I32 ax = mark - stack_base + 1; \ |
18 | I32 items = sp - mark |
19 | |
20 | #define XSANY CvXSUBANY(cv) |
21 | |
22 | #define dXSI32 I32 ix = XSANY.any_i32 |
23 | |
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24 | #define XSRETURN(off) \ |
25 | STMT_START { \ |
26 | stack_sp = stack_base + ax + ((off) - 1); \ |
27 | return; \ |
28 | } STMT_END |
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29 | |
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30 | /* Simple macros to put new mortal values onto the stack. */ |
31 | /* Typically used to return values from XS functions. */ |
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32 | #define XST_mIV(i,v) (ST(i) = sv_2mortal(newSViv(v)) ) |
33 | #define XST_mNV(i,v) (ST(i) = sv_2mortal(newSVnv(v)) ) |
34 | #define XST_mPV(i,v) (ST(i) = sv_2mortal(newSVpv(v,0))) |
35 | #define XST_mNO(i) (ST(i) = &sv_no ) |
36 | #define XST_mYES(i) (ST(i) = &sv_yes ) |
37 | #define XST_mUNDEF(i) (ST(i) = &sv_undef) |
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38 | |
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39 | #define XSRETURN_IV(v) STMT_START { XST_mIV(0,v); XSRETURN(1); } STMT_END |
40 | #define XSRETURN_NV(v) STMT_START { XST_mNV(0,v); XSRETURN(1); } STMT_END |
41 | #define XSRETURN_PV(v) STMT_START { XST_mPV(0,v); XSRETURN(1); } STMT_END |
42 | #define XSRETURN_NO STMT_START { XST_mNO(0); XSRETURN(1); } STMT_END |
43 | #define XSRETURN_YES STMT_START { XST_mYES(0); XSRETURN(1); } STMT_END |
44 | #define XSRETURN_UNDEF STMT_START { XST_mUNDEF(0); XSRETURN(1); } STMT_END |
45 | #define XSRETURN_EMPTY STMT_START { XSRETURN(0); } STMT_END |
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46 | |
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47 | #define newXSproto(a,b,c,d) sv_setpv((SV*)newXS(a,b,c), d) |
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48 | |
49 | #ifdef XS_VERSION |
50 | # define XS_VERSION_BOOTCHECK \ |
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51 | STMT_START { \ |
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52 | char *xs_version = FORCE_ARG_STRING(XS_VERSION); \ |
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53 | char *vn = "", *module = SvPV(ST(0),na); \ |
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54 | if (items >= 2) /* version supplied as bootstrap arg */ \ |
55 | Sv = ST(1); \ |
56 | else { \ |
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57 | /* XXX GV_ADDWARN */ \ |
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58 | Sv = perl_get_sv(form("%s::%s", module, \ |
59 | vn = "XS_VERSION"), FALSE); \ |
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60 | if (!Sv || !SvOK(Sv)) \ |
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61 | Sv = perl_get_sv(form("%s::%s", module, \ |
62 | vn = "VERSION"), FALSE); \ |
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63 | } \ |
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64 | if (Sv && (!SvOK(Sv) || strNE(xs_version, SvPV(Sv, na)))) \ |
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65 | croak("%s object version %s does not match $%s::%s %_", \ |
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66 | module, xs_version, module, vn, Sv); \ |
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67 | } STMT_END |
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68 | #else |
69 | # define XS_VERSION_BOOTCHECK |
70 | #endif |