1.1 --- a/src/share/vm/utilities/taskqueue.hpp Thu Sep 16 13:45:55 2010 -0700
1.2 +++ b/src/share/vm/utilities/taskqueue.hpp Mon Sep 20 14:38:38 2010 -0700
1.3 @@ -305,6 +305,12 @@
1.4 return false;
1.5 }
1.6
1.7 +// pop_local_slow() is done by the owning thread and is trying to
1.8 +// get the last task in the queue. It will compete with pop_global()
1.9 +// that will be used by other threads. The tag age is incremented
1.10 +// whenever the queue goes empty which it will do here if this thread
1.11 +// gets the last task or in pop_global() if the queue wraps (top == 0
1.12 +// and pop_global() succeeds, see pop_global()).
1.13 template<class E, unsigned int N>
1.14 bool GenericTaskQueue<E, N>::pop_local_slow(uint localBot, Age oldAge) {
1.15 // This queue was observed to contain exactly one element; either this
1.16 @@ -637,6 +643,9 @@
1.17 // in an MT-safe manner, once the previous round of use of
1.18 // the terminator is finished.
1.19 void reset_for_reuse();
1.20 + // Same as above but the number of parallel threads is set to the
1.21 + // given number.
1.22 + void reset_for_reuse(int n_threads);
1.23
1.24 #ifdef TRACESPINNING
1.25 static uint total_yields() { return _total_yields; }
1.26 @@ -782,3 +791,4 @@
1.27
1.28 typedef OverflowTaskQueue<size_t> RegionTaskQueue;
1.29 typedef GenericTaskQueueSet<RegionTaskQueue> RegionTaskQueueSet;
1.30 +
