6751923: JNDI wake up when clock_settime() is called
Summary: Ported Chris Phillips' patch from jdk5 to jdk7
Reviewed-by: chrisphi, coleenp
--- a/hotspot/src/os/solaris/vm/os_solaris.cpp Wed Nov 17 09:21:51 2010 -0500
+++ b/hotspot/src/os/solaris/vm/os_solaris.cpp Thu Nov 18 14:37:46 2010 -0500
@@ -3375,7 +3375,12 @@
// INTERRUPTIBLE_NORESTART_VM_ALWAYS returns res == OS_INTRPT for
// thread.Interrupt.
- if((res == OS_ERR) && (errno == EINTR)) {
+ // See c/r 6751923. Poll can return 0 before time
+ // has elapsed if time is set via clock_settime (as NTP does).
+ // res == 0 if poll timed out (see man poll RETURN VALUES)
+ // using the logic below checks that we really did
+ // sleep at least "millis" if not we'll sleep again.
+ if( ( res == 0 ) || ((res == OS_ERR) && (errno == EINTR))) {
newtime = getTimeMillis();
assert(newtime >= prevtime, "time moving backwards");
/* Doing prevtime and newtime in microseconds doesn't help precision,