#ifdef USE_THREADS
-# ifdef EMULATE_ATOMIC_REFCOUNTS
-# define ATOMIC_INC(count) STMT_START { \
- MUTEX_LOCK(&PL_svref_mutex); \
- ++count; \
- MUTEX_UNLOCK(&PL_svref_mutex); \
- } STMT_END
-# define ATOMIC_DEC_AND_TEST(res,count) STMT_START { \
- MUTEX_LOCK(&PL_svref_mutex); \
- res = (--count == 0); \
- MUTEX_UNLOCK(&PL_svref_mutex); \
- } STMT_END
-# else
-# define ATOMIC_INC(count) atomic_inc(&count)
-# define ATOMIC_DEC_AND_TEST(res,count) (res = atomic_dec_and_test(&count))
-# endif /* EMULATE_ATOMIC_REFCOUNTS */
+# if defined(VMS)
+# define ATOMIC_INC(count) __ATOMIC_INCREMENT_LONG(&count)
+# define ATOMIC_DEC_AND_TEST(res,count) res=(1==__ATOMIC_DECREMENT_LONG(&count))
+ # else
+# ifdef EMULATE_ATOMIC_REFCOUNTS
+ # define ATOMIC_INC(count) STMT_START { \
+ MUTEX_LOCK(&PL_svref_mutex); \
+ ++count; \
+ MUTEX_UNLOCK(&PL_svref_mutex); \
+ } STMT_END
+# define ATOMIC_DEC_AND_TEST(res,count) STMT_START { \
+ MUTEX_LOCK(&PL_svref_mutex); \
+ res = (--count == 0); \
+ MUTEX_UNLOCK(&PL_svref_mutex); \
+ } STMT_END
+# else
+# define ATOMIC_INC(count) atomic_inc(&count)
+# define ATOMIC_DEC_AND_TEST(res,count) (res = atomic_dec_and_test(&count))
+# endif /* EMULATE_ATOMIC_REFCOUNTS */
+# endif /* VMS */
#else
# define ATOMIC_INC(count) (++count)
# define ATOMIC_DEC_AND_TEST(res, count) (res = (--count == 0))
})
#else
# if defined(CRIPPLED_CC) || defined(USE_THREADS)
-# define SvREFCNT_inc(sv) sv_newref((SV*)sv)
+# if defined(VMS) && defined(__ALPHA)
+# define SvREFCNT_inc(sv) \
+ (PL_Sv=(SV*)(sv), (PL_Sv && __ATOMIC_INCREMENT_LONG(&(SvREFCNT(PL_Sv)))), (SV *)PL_Sv)
+# else
+# define SvREFCNT_inc(sv) sv_newref((SV*)sv)
+# endif
# else
# define SvREFCNT_inc(sv) \
((PL_Sv=(SV*)(sv)), (PL_Sv && ATOMIC_INC(SvREFCNT(PL_Sv))), (SV*)PL_Sv)
#define SvOKp(sv) (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK))
#define SvIOKp(sv) (SvFLAGS(sv) & SVp_IOK)
-#define SvIOKp_on(sv) (SvOOK_off(sv), SvFLAGS(sv) |= SVp_IOK)
+#define SvIOKp_on(sv) ((void)SvOOK_off(sv), SvFLAGS(sv) |= SVp_IOK)
#define SvNOKp(sv) (SvFLAGS(sv) & SVp_NOK)
#define SvNOKp_on(sv) (SvFLAGS(sv) |= SVp_NOK)
#define SvPOKp(sv) (SvFLAGS(sv) & SVp_POK)
#define SvPOKp_on(sv) (SvFLAGS(sv) |= SVp_POK)
#define SvIOK(sv) (SvFLAGS(sv) & SVf_IOK)
-#define SvIOK_on(sv) (SvOOK_off(sv), \
+#define SvIOK_on(sv) ((void)SvOOK_off(sv), \
SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
#define SvIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVp_IOK|SVf_IVisUV))
-#define SvIOK_only(sv) (SvOK_off(sv), \
+#define SvIOK_only(sv) ((void)SvOK_off(sv), \
SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
-#define SvIOK_only_UV(sv) (SvOK_off_exc_UV(sv), \
+#define SvIOK_only_UV(sv) ((void)SvOK_off_exc_UV(sv), \
SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
#define SvIOK_UV(sv) ((SvFLAGS(sv) & (SVf_IOK|SVf_IVisUV)) \
#define SvNOK(sv) (SvFLAGS(sv) & SVf_NOK)
#define SvNOK_on(sv) (SvFLAGS(sv) |= (SVf_NOK|SVp_NOK))
#define SvNOK_off(sv) (SvFLAGS(sv) &= ~(SVf_NOK|SVp_NOK))
-#define SvNOK_only(sv) (SvOK_off(sv), \
+#define SvNOK_only(sv) ((void)SvOK_off(sv), \
SvFLAGS(sv) |= (SVf_NOK|SVp_NOK))
#define SvUTF8(sv) (SvFLAGS(sv) & SVf_UTF8)
SvFLAGS(sv) |= (SVf_POK|SVp_POK))
#define SvOOK(sv) (SvFLAGS(sv) & SVf_OOK)
-#define SvOOK_on(sv) (SvIOK_off(sv), SvFLAGS(sv) |= SVf_OOK)
+#define SvOOK_on(sv) ((void)SvIOK_off(sv), SvFLAGS(sv) |= SVf_OOK)
#define SvOOK_off(sv) (SvOOK(sv) && sv_backoff(sv))
#define SvFAKE(sv) (SvFLAGS(sv) & SVf_FAKE)
#define IoFLAGS(sv) ((XPVIO*) SvANY(sv))->xio_flags
/*
+IoTYPE(sv) is a single character saying what type of I/O connection
+this is:
+ | pipe
+ - stdin or stdout
+ < read-only
+ > write-only
+ a append
+ + read and write
+ s socket
+ space closed
+*/
+
+/*
=for apidoc Am|bool|SvTAINTED|SV* sv
Checks to see if an SV is tainted. Returns TRUE if it is, FALSE if
not.
NUL character). Calls C<sv_grow> to perform the expansion if necessary.
Returns a pointer to the character buffer.
+=for apidoc Am|void|SvLOCK|SV* sv
+Aquires an internal mutex for a SV. Used to make sure multiple threads
+don't stomp on the guts of an SV at the same time
+
+=for apidoc Am|void|SvUNLOCK|SV* sv
+Release the internal mutex for an SV.
+
=cut
*/
SvSetSV_nosteal_and(dst,src,SvSETMAGIC(dst))
#ifdef DEBUGGING
+
+#define SvLOCK(sv) MUTEX_LOCK(&PL_sv_lock_mutex)
+#define SvUNLOCK(sv) MUTEX_UNLOCK(&PL_sv_lock_mutex)
#define SvPEEK(sv) sv_peek(sv)
#else
#define SvPEEK(sv) ""
#define SvGROW(sv,len) (SvLEN(sv) < (len) ? sv_grow(sv,len) : SvPVX(sv))
#define Sv_Grow sv_grow
+