natThread.cc (sleep): Turn 0 millis and 0 nanos into 1 nano.

	* java/lang/natThread.cc (sleep): Turn 0 millis and 0 nanos into 1
	nano.
	* include/quick-threads.h (_Jv_CondWait): Don't round to 0
	inappropriately.

From-SVN: r28742

libjava/ChangeLog

+1999-08-17  Tom Tromey  <tromey@cygnus.com>
+
+	* java/lang/natThread.cc (sleep): Turn 0 millis and 0 nanos into 1
+	nano.
+	* include/quick-threads.h (_Jv_CondWait): Don't round to 0
+	inappropriately.
+
 1999-08-16  Tom Tromey  <tromey@cygnus.com>
 
 	* configure: Rebuilt.

libjava/include/quick-threads.h

@@ -38,7 +38,11 @@ inline int
 _Jv_CondWait (_Jv_ConditionVariable_t *cv, _Jv_Mutex_t *mu,
 	      jlong millis, jint nanos)
 {
-  return coop_condition_variable_wait (cv, mu, millis * 1000 + nanos / 1000);
+  long micros = millis * 1000 + nanos / 1000;
+  // Don't round to 0 inappropriately.
+  if (! micros && (millis || nanos))
+    micros = 1;
+  return coop_condition_variable_wait (cv, mu, micros);
 }
 
 inline int

libjava/java/lang/natThread.cc

@@ -214,6 +214,9 @@ java::lang::Thread::sleep (jlong millis, jint nanos)
   if (millis < 0 || nanos < 0 || nanos > 999999)
     _Jv_Throw (new IllegalArgumentException);
 
+  if (millis == 0 && nanos == 0)
+    ++nanos;
+
   Thread *current = currentThread ();
   if (current->isInterrupted ())
     _Jv_Throw (new InterruptedException);