--- a/hotspot/src/share/vm/utilities/taskqueue.cpp Fri Jul 10 16:01:20 2009 -0700
+++ b/hotspot/src/share/vm/utilities/taskqueue.cpp Tue Jul 14 15:40:39 2009 -0700
@@ -64,15 +64,18 @@
}
void ParallelTaskTerminator::yield() {
+ assert(_offered_termination <= _n_threads, "Invariant");
os::yield();
}
void ParallelTaskTerminator::sleep(uint millis) {
+ assert(_offered_termination <= _n_threads, "Invariant");
os::sleep(Thread::current(), millis, false);
}
bool
ParallelTaskTerminator::offer_termination(TerminatorTerminator* terminator) {
+ assert(_offered_termination < _n_threads, "Invariant");
Atomic::inc(&_offered_termination);
uint yield_count = 0;
@@ -96,6 +99,7 @@
// Loop waiting for all threads to offer termination or
// more work.
while (true) {
+ assert(_offered_termination <= _n_threads, "Invariant");
// Are all threads offering termination?
if (_offered_termination == _n_threads) {
return true;
@@ -151,6 +155,7 @@
if (peek_in_queue_set() ||
(terminator != NULL && terminator->should_exit_termination())) {
Atomic::dec(&_offered_termination);
+ assert(_offered_termination < _n_threads, "Invariant");
return false;
}
}