--- cvsroot/EV/EV.xs	2008/09/08 17:27:42	1.115
+++ cvsroot/EV/EV.xs	2009/06/29 18:46:52	1.124
@@ -26,24 +26,40 @@
 # include <pthread.h>
 #endif
 
+/* 5.10.0 */
+#ifndef SvREFCNT_inc_NN
+# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
+#endif
+
+/* 5.6.x */
+#ifndef SvRV_set
+# define SvRV_set(a,b) SvRV ((a)) = (b)
+#endif
+
 #define e_loop(w) INT2PTR (struct ev_loop *, SvIVX ((w)->loop))
 
 #define WFLAG_KEEPALIVE 1
+#define WFLAG_UNREFED   2 /* has been unref'ed */
 
 #define UNREF(w)				\
-  if (!((w)->e_flags & WFLAG_KEEPALIVE)		\
-      && !ev_is_active (w))			\
-    ev_unref (e_loop (w));
+  if (!((w)->e_flags & (WFLAG_KEEPALIVE | WFLAG_UNREFED))	\
+      && ev_is_active (w))			\
+    {						\
+      ev_unref (e_loop (w));			\
+      (w)->e_flags |= WFLAG_UNREFED;		\
+    }
 
 #define REF(w)					\
-  if (!((w)->e_flags & WFLAG_KEEPALIVE)		\
-      && ev_is_active (w))			\
-    ev_ref (e_loop (w));
+  if ((w)->e_flags & WFLAG_UNREFED)		\
+    {						\
+      (w)->e_flags &= ~WFLAG_UNREFED;		\
+      ev_ref (e_loop (w));			\
+    }
 
 #define START(type,w)				\
   do {						\
-    UNREF (w);					\
     ev_ ## type ## _start (e_loop (w), w);	\
+    UNREF (w);					\
   } while (0)
 
 #define STOP(type,w)				\
@@ -193,7 +209,7 @@
   return rv;
 }
 
-static SV *sv_events_cache;
+static SV *sv_self_cache, *sv_events_cache;
 
 static void
 e_cb (EV_P_ ev_watcher *w, int revents)
@@ -202,15 +218,32 @@
   I32 mark = SP - PL_stack_base;
   SV *sv_self, *sv_events;
 
-  sv_self = newRV_inc (w->self); /* w->self MUST be blessed by now */
+  /* libev might have stopped the watcher */
+  if (expect_false (w->e_flags & WFLAG_UNREFED)
+      && !ev_is_active (w))
+    REF (w);
 
-  if (sv_events_cache)
+  if (expect_true (sv_self_cache))
+    {
+      sv_self = sv_self_cache; sv_self_cache = 0;
+      SvRV_set (sv_self, SvREFCNT_inc_NN (w->self));
+    }
+  else
+    {
+      sv_self = newRV_inc (w->self); /* w->self MUST be blessed by now */
+      SvREADONLY_on (sv_self);
+    }
+
+  if (expect_true (sv_events_cache))
     {
       sv_events = sv_events_cache; sv_events_cache = 0;
       SvIV_set (sv_events, revents);
     }
   else
-    sv_events = newSViv (revents);
+    {
+      sv_events = newSViv (revents);
+      SvREADONLY_on (sv_events);
+    }
 
   PUSHMARK (SP);
   EXTEND (SP, 2);
@@ -220,14 +253,21 @@
   PUTBACK;
   call_sv (w->cb_sv, G_DISCARD | G_VOID | G_EVAL);
 
-  SvREFCNT_dec (sv_self);
+  if (expect_false (SvREFCNT (sv_self) != 1 || sv_self_cache))
+    SvREFCNT_dec (sv_self);
+  else
+    {
+      SvREFCNT_dec (SvRV (sv_self));
+      SvRV_set (sv_self, &PL_sv_undef);
+      sv_self_cache = sv_self;
+    }
 
-  if (sv_events_cache)
+  if (expect_false (SvREFCNT (sv_events) != 1 || sv_events_cache))
     SvREFCNT_dec (sv_events);
   else
     sv_events_cache = sv_events;
 
-  if (SvTRUE (ERRSV))
+  if (expect_false (SvTRUE (ERRSV)))
     {
       SPAGAIN;
       PUSHMARK (SP);
@@ -352,16 +392,28 @@
 
     const_iv (EV_, UNDEF)
     const_iv (EV_, NONE)
-    const_iv (EV_, TIMEOUT)
     const_iv (EV_, READ)
     const_iv (EV_, WRITE)
+    const_iv (EV_, IO)
+    const_iv (EV_, TIMEOUT)
+    const_iv (EV_, TIMER)
+    const_iv (EV_, PERIODIC)
     const_iv (EV_, SIGNAL)
+    const_iv (EV_, CHILD)
+    const_iv (EV_, STAT)
     const_iv (EV_, IDLE)
+    const_iv (EV_, PREPARE)
     const_iv (EV_, CHECK)
+    const_iv (EV_, EMBED)
+    const_iv (EV_, FORK)
+    const_iv (EV_, ASYNC)
+    const_iv (EV_, CUSTOM)
     const_iv (EV_, ERROR)
 
-    const_iv (EV, LOOP_ONESHOT)
     const_iv (EV, LOOP_NONBLOCK)
+    const_iv (EV, LOOP_ONESHOT)
+
+    const_iv (EV, UNLOOP_CANCEL)
     const_iv (EV, UNLOOP_ONE)
     const_iv (EV, UNLOOP_ALL)
 
@@ -374,6 +426,9 @@
     const_iv (EV, FLAG_AUTO)
     const_iv (EV, FLAG_NOENV)
     const_iv (EV, FLAG_FORKCHECK)
+
+    const_iv (EV_, VERSION_MAJOR)
+    const_iv (EV_, VERSION_MINOR)
   };
 
   for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
@@ -414,6 +469,8 @@
     evapi.loop_count           = ev_loop_count;
     evapi.now                  = ev_now;
     evapi.now_update           = ev_now_update;
+    evapi.suspend              = ev_suspend;
+    evapi.resume               = ev_resume;
     evapi.backend              = ev_backend;
     evapi.unloop               = ev_unloop;
     evapi.ref                  = ev_ref;
@@ -489,6 +546,8 @@
 
 unsigned int ev_embeddable_backends ()
 
+void ev_sleep (NV interval)
+
 NV ev_time ()
 
 NV ev_now ()
@@ -497,6 +556,12 @@
 void ev_now_update ()
 	C_ARGS: evapi.default_loop
 
+void ev_suspend ()
+	C_ARGS: evapi.default_loop
+
+void ev_resume ()
+	C_ARGS: evapi.default_loop
+
 unsigned int ev_backend ()
 	C_ARGS: evapi.default_loop
 
@@ -709,8 +774,8 @@
 
         if (items > 1 && ((new_value ^ w->e_flags) & WFLAG_KEEPALIVE))
           {
-            REF (w);
             w->e_flags = (w->e_flags & ~WFLAG_KEEPALIVE) | new_value;
+            REF (w);
             UNREF (w);
           }
 }
@@ -895,7 +960,6 @@
         INIT:
         CHECK_REPEAT (w->repeat);
         CODE:
-        REF (w);
         ev_timer_again (e_loop (w), w);
         UNREF (w);
 
@@ -924,7 +988,6 @@
 
 void ev_periodic_again (ev_periodic *w)
 	CODE:
-        REF (w);
         ev_periodic_again (e_loop (w), w);
         UNREF (w);
 
@@ -1217,6 +1280,10 @@
 
 void ev_now_update (struct ev_loop *loop)
 
+void ev_suspend (struct ev_loop *loop)
+
+void ev_resume (struct ev_loop *loop)
+
 void ev_set_io_collect_interval (struct ev_loop *loop, NV interval)
 
 void ev_set_timeout_collect_interval (struct ev_loop *loop, NV interval)