Thu, 21 Aug 2008 23:36:31 -0400
Merge
duke@435 | 1 | /* |
duke@435 | 2 | * Copyright 2002-2006 Sun Microsystems, Inc. All Rights Reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
duke@435 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
duke@435 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
duke@435 | 21 | * have any questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
duke@435 | 25 | // |
duke@435 | 26 | // This class exposes implementation details of the various |
duke@435 | 27 | // collector(s), and we need to be very careful with it. If |
duke@435 | 28 | // use of this class grows, we should split it into public |
duke@435 | 29 | // and implemenation-private "causes". |
duke@435 | 30 | // |
duke@435 | 31 | |
duke@435 | 32 | class GCCause : public AllStatic { |
duke@435 | 33 | public: |
duke@435 | 34 | enum Cause { |
duke@435 | 35 | /* public */ |
duke@435 | 36 | _java_lang_system_gc, |
duke@435 | 37 | _full_gc_alot, |
duke@435 | 38 | _scavenge_alot, |
duke@435 | 39 | _allocation_profiler, |
duke@435 | 40 | _jvmti_force_gc, |
duke@435 | 41 | _gc_locker, |
duke@435 | 42 | _heap_inspection, |
duke@435 | 43 | _heap_dump, |
duke@435 | 44 | |
duke@435 | 45 | /* implementation independent, but reserved for GC use */ |
duke@435 | 46 | _no_gc, |
duke@435 | 47 | _no_cause_specified, |
duke@435 | 48 | _allocation_failure, |
duke@435 | 49 | |
duke@435 | 50 | /* implementation specific */ |
duke@435 | 51 | |
duke@435 | 52 | _tenured_generation_full, |
duke@435 | 53 | _permanent_generation_full, |
duke@435 | 54 | |
duke@435 | 55 | _cms_generation_full, |
duke@435 | 56 | _cms_initial_mark, |
duke@435 | 57 | _cms_final_remark, |
duke@435 | 58 | |
duke@435 | 59 | _old_generation_expanded_on_last_scavenge, |
duke@435 | 60 | _old_generation_too_full_to_scavenge, |
duke@435 | 61 | _adaptive_size_policy, |
duke@435 | 62 | |
ysr@777 | 63 | _g1_inc_collection_pause, _g1_pop_region_collection_pause, |
ysr@777 | 64 | |
duke@435 | 65 | _last_ditch_collection, |
duke@435 | 66 | _last_gc_cause |
duke@435 | 67 | }; |
duke@435 | 68 | |
duke@435 | 69 | inline static bool is_user_requested_gc(GCCause::Cause cause) { |
duke@435 | 70 | return (cause == GCCause::_java_lang_system_gc || |
duke@435 | 71 | cause == GCCause::_jvmti_force_gc); |
duke@435 | 72 | } |
ysr@777 | 73 | |
duke@435 | 74 | inline static bool is_serviceability_requested_gc(GCCause::Cause |
duke@435 | 75 | cause) { |
duke@435 | 76 | return (cause == GCCause::_jvmti_force_gc || |
duke@435 | 77 | cause == GCCause::_heap_inspection || |
duke@435 | 78 | cause == GCCause::_heap_dump); |
duke@435 | 79 | } |
ysr@777 | 80 | |
duke@435 | 81 | // Return a string describing the GCCause. |
duke@435 | 82 | static const char* to_string(GCCause::Cause cause); |
duke@435 | 83 | // Return true if the GCCause is for a full collection. |
duke@435 | 84 | static bool is_for_full_collection(GCCause::Cause cause) PRODUCT_RETURN0; |
duke@435 | 85 | }; |