support C<use Shell> on Windows (reworked a patch suggested

[perl5.git] / cv.h

diff --git a/cv.h b/cv.h
index 1e6b8de..67d4a8e 100644 (file)
--- a/cv.h
+++ b/cv.h
@@ -1,6 +1,6 @@
 /*    cv.h
  *
- *    Copyright (c) 1991-1997, Larry Wall
+ *    Copyright (c) 1991-1999, 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.
@@ -14,14 +14,14 @@ struct xpvcv {
     STRLEN     xpv_cur;        /* length of xp_pv as a C string */
     STRLEN     xpv_len;        /* allocated size */
     IV         xof_off;        /* integer value */
-    double     xnv_nv;         /* numeric value, if any */
+    NV         xnv_nv;         /* numeric value, if any */
     MAGIC*     xmg_magic;      /* magic for scalar array */
     HV*                xmg_stash;      /* class package */
 
     HV *       xcv_stash;
     OP *       xcv_start;
     OP *       xcv_root;
-    void      (*xcv_xsub) _((CV*));
+    void       (*xcv_xsub) (pTHXo_ CV*);
     ANY                xcv_xsubany;
     GV *       xcv_gv;
     GV *       xcv_filegv;
@@ -30,10 +30,9 @@ struct xpvcv {
     CV *       xcv_outside;
 #ifdef USE_THREADS
     perl_mutex *xcv_mutexp;
-    perl_cond *        xcv_condp;      /* signalled when owner leaves CV */
-    struct thread *xcv_owner;  /* current owner thread */
+    struct perl_thread *xcv_owner;     /* current owner thread */
 #endif /* USE_THREADS */
-    U8         xcv_flags;
+    cv_flags_t xcv_flags;
 };
 
 #define Nullcv Null(CV*)
@@ -50,18 +49,20 @@ struct xpvcv {
 #define CvOUTSIDE(sv)  ((XPVCV*)SvANY(sv))->xcv_outside
 #ifdef USE_THREADS
 #define CvMUTEXP(sv)   ((XPVCV*)SvANY(sv))->xcv_mutexp
-#define CvCONDP(sv)    ((XPVCV*)SvANY(sv))->xcv_condp
 #define CvOWNER(sv)    ((XPVCV*)SvANY(sv))->xcv_owner
 #endif /* USE_THREADS */
 #define CvFLAGS(sv)    ((XPVCV*)SvANY(sv))->xcv_flags
 
-#define CVf_CLONE      0x01    /* anon CV uses external lexicals */
-#define CVf_CLONED     0x02    /* a clone of one of those */
-#define CVf_ANON       0x04    /* CvGV() can't be trusted */
-#define CVf_OLDSTYLE   0x08
-#define CVf_UNIQUE     0x10    /* can't be cloned */
-#define CVf_NODEBUG    0x20    /* no DB::sub indirection for this CV
+#define CVf_CLONE      0x0001  /* anon CV uses external lexicals */
+#define CVf_CLONED     0x0002  /* a clone of one of those */
+#define CVf_ANON       0x0004  /* CvGV() can't be trusted */
+#define CVf_OLDSTYLE   0x0008
+#define CVf_UNIQUE     0x0010  /* can't be cloned */
+#define CVf_NODEBUG    0x0020  /* no DB::sub indirection for this CV
                                   (esp. useful for special XSUBs) */
+#define CVf_METHOD     0x0040  /* CV is explicitly marked as a method */
+#define CVf_LOCKED     0x0080  /* CV locks itself or first arg on entry */
+#define CVf_LVALUE     0x0100  /* CV return value can be used as lvalue */
 
 #define CvCLONE(cv)            (CvFLAGS(cv) & CVf_CLONE)
 #define CvCLONE_on(cv)         (CvFLAGS(cv) |= CVf_CLONE)
@@ -75,9 +76,11 @@ struct xpvcv {
 #define CvANON_on(cv)          (CvFLAGS(cv) |= CVf_ANON)
 #define CvANON_off(cv)         (CvFLAGS(cv) &= ~CVf_ANON)
 
+#ifdef PERL_XSUB_OLDSTYLE
 #define CvOLDSTYLE(cv)         (CvFLAGS(cv) & CVf_OLDSTYLE)
 #define CvOLDSTYLE_on(cv)      (CvFLAGS(cv) |= CVf_OLDSTYLE)
 #define CvOLDSTYLE_off(cv)     (CvFLAGS(cv) &= ~CVf_OLDSTYLE)
+#endif
 
 #define CvUNIQUE(cv)           (CvFLAGS(cv) & CVf_UNIQUE)
 #define CvUNIQUE_on(cv)                (CvFLAGS(cv) |= CVf_UNIQUE)
@@ -86,3 +89,24 @@ struct xpvcv {
 #define CvNODEBUG(cv)          (CvFLAGS(cv) & CVf_NODEBUG)
 #define CvNODEBUG_on(cv)       (CvFLAGS(cv) |= CVf_NODEBUG)
 #define CvNODEBUG_off(cv)      (CvFLAGS(cv) &= ~CVf_NODEBUG)
+
+#define CvMETHOD(cv)           (CvFLAGS(cv) & CVf_METHOD)
+#define CvMETHOD_on(cv)                (CvFLAGS(cv) |= CVf_METHOD)
+#define CvMETHOD_off(cv)       (CvFLAGS(cv) &= ~CVf_METHOD)
+
+#define CvLOCKED(cv)           (CvFLAGS(cv) & CVf_LOCKED)
+#define CvLOCKED_on(cv)                (CvFLAGS(cv) |= CVf_LOCKED)
+#define CvLOCKED_off(cv)       (CvFLAGS(cv) &= ~CVf_LOCKED)
+
+#define CvLVALUE(cv)           (CvFLAGS(cv) & CVf_LVALUE)
+#define CvLVALUE_on(cv)                (CvFLAGS(cv) |= CVf_LVALUE)
+#define CvLVALUE_off(cv)       (CvFLAGS(cv) &= ~CVf_LVALUE)
+
+#define CvEVAL(cv)             (CvUNIQUE(cv) && !SvFAKE(cv))
+#define CvEVAL_on(cv)          (CvUNIQUE_on(cv),SvFAKE_off(cv))
+#define CvEVAL_off(cv)         CvUNIQUE_off(cv)
+
+/* BEGIN|INIT|END */
+#define CvSPECIAL(cv)          (CvUNIQUE(cv) && SvFAKE(cv))
+#define CvSPECIAL_on(cv)       (CvUNIQUE_on(cv),SvFAKE_on(cv))
+#define CvSPECIAL_off(cv)      (CvUNIQUE_off(cv),SvFAKE_off(cv))