1.1 --- a/src/share/vm/gc_implementation/g1/ptrQueue.hpp Thu Jan 13 17:19:21 2011 -0800 1.2 +++ b/src/share/vm/gc_implementation/g1/ptrQueue.hpp Wed Jan 19 09:35:17 2011 -0500 1.3 @@ -1,5 +1,5 @@ 1.4 /* 1.5 - * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved. 1.6 + * Copyright (c) 2001, 2011, Oracle and/or its affiliates. All rights reserved. 1.7 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 1.8 * 1.9 * This code is free software; you can redistribute it and/or modify it 1.10 @@ -68,7 +68,7 @@ 1.11 public: 1.12 // Initialize this queue to contain a null buffer, and be part of the 1.13 // given PtrQueueSet. 1.14 - PtrQueue(PtrQueueSet*, bool perm = false, bool active = false); 1.15 + PtrQueue(PtrQueueSet* qset, bool perm = false, bool active = false); 1.16 // Release any contained resources. 1.17 void flush(); 1.18 // Calls flush() when destroyed. 1.19 @@ -85,6 +85,14 @@ 1.20 else enqueue_known_active(ptr); 1.21 } 1.22 1.23 + // This method is called when we're doing the zero index handling 1.24 + // and gives a chance to the queues to do any pre-enqueueing 1.25 + // processing they might want to do on the buffer. It should return 1.26 + // true if the buffer should be enqueued, or false if enough 1.27 + // entries were cleared from it so that it can be re-used. It should 1.28 + // not return false if the buffer is still full (otherwise we can 1.29 + // get into an infinite loop). 1.30 + virtual bool should_enqueue_buffer() { return true; } 1.31 void handle_zero_index(); 1.32 void locking_enqueue_completed_buffer(void** buf); 1.33