*** empty log message ***

Changes

@@ -3,6 +3,10 @@ Revision history for libev, a high-performance and full-featured event loop.
 TODO: for next ABI/API change, consider moving EV__IOFDSSET into io->fd instead and provide a getter.
 TODO: document EV_TSTAMP_T
 
+	- due to a logic bug, timerfd availability did not always translate
+          into fewer wakeups - libev is now more aggressive in using
+          longer sleeps, even when timerfd is not in use.
+
 4.33 Wed Mar 18 13:22:29 CET 2020
 	- no changes w.r.t. 4.32.
 

ev.c

@@ -4094,17 +4094,19 @@ ev_run (EV_P_ int flags)
           {
             waittime = EV_TS_CONST (MAX_BLOCKTIME);
 
+            if (ecb_expect_true (have_monotonic))
+              {
 #if EV_USE_TIMERFD
-            /* sleep a lot longer when we can reliably detect timejumps */
-            if (ecb_expect_true (timerfd >= 0))
-              waittime = EV_TS_CONST (MAX_BLOCKTIME2);
+                /* sleep a lot longer when we can reliably detect timejumps */
+                if (ecb_expect_true (timerfd != -1))
+                  waittime = EV_TS_CONST (MAX_BLOCKTIME2);
 #endif
 #if !EV_PERIODIC_ENABLE
-            /* without periodics but with monotonic clock there is no need */
-            /* for any time jump detection, so sleep longer */
-            if (ecb_expect_true (have_monotonic))
-              waittime = EV_TS_CONST (MAX_BLOCKTIME2);
+                /* without periodics but with monotonic clock there is no need */
+                /* for any time jump detection, so sleep longer */
+                waittime = EV_TS_CONST (MAX_BLOCKTIME2);
 #endif
+              }
 
             if (timercnt)
               {