Mercurial > hg > graal-compiler
view src/share/vm/gc_implementation/parallelScavenge/pcTasks.cpp @ 1751:2528b5bd749c
6980262: Memory leak when exception is thrown in static initializer
Summary: Use resource memory instead of c-heap for the exception message
Reviewed-by: phh, jmasa
author | kamg |
---|---|
date | Fri, 27 Aug 2010 15:05:28 -0400 |
parents | c18cbe5936b8 |
children | 894b1d7c7e01 |
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/* * Copyright (c) 2005, 2009, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ # include "incls/_precompiled.incl" # include "incls/_pcTasks.cpp.incl" // // ThreadRootsMarkingTask // void ThreadRootsMarkingTask::do_it(GCTaskManager* manager, uint which) { assert(Universe::heap()->is_gc_active(), "called outside gc"); ResourceMark rm; NOT_PRODUCT(TraceTime tm("ThreadRootsMarkingTask", PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty)); ParCompactionManager* cm = ParCompactionManager::gc_thread_compaction_manager(which); PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm); CodeBlobToOopClosure mark_and_push_in_blobs(&mark_and_push_closure, /*do_marking=*/ true); if (_java_thread != NULL) _java_thread->oops_do(&mark_and_push_closure, &mark_and_push_in_blobs); if (_vm_thread != NULL) _vm_thread->oops_do(&mark_and_push_closure, &mark_and_push_in_blobs); // Do the real work cm->follow_marking_stacks(); } void MarkFromRootsTask::do_it(GCTaskManager* manager, uint which) { assert(Universe::heap()->is_gc_active(), "called outside gc"); NOT_PRODUCT(TraceTime tm("MarkFromRootsTask", PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty)); ParCompactionManager* cm = ParCompactionManager::gc_thread_compaction_manager(which); assert(cm->stacks_have_been_allocated(), "Stack space has not been allocated"); PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm); switch (_root_type) { case universe: Universe::oops_do(&mark_and_push_closure); break; case reference_processing: ReferenceProcessor::oops_do(&mark_and_push_closure); break; case jni_handles: JNIHandles::oops_do(&mark_and_push_closure); break; case threads: { ResourceMark rm; CodeBlobToOopClosure each_active_code_blob(&mark_and_push_closure, /*do_marking=*/ true); Threads::oops_do(&mark_and_push_closure, &each_active_code_blob); } break; case object_synchronizer: ObjectSynchronizer::oops_do(&mark_and_push_closure); break; case flat_profiler: FlatProfiler::oops_do(&mark_and_push_closure); break; case management: Management::oops_do(&mark_and_push_closure); break; case jvmti: JvmtiExport::oops_do(&mark_and_push_closure); break; case system_dictionary: SystemDictionary::always_strong_oops_do(&mark_and_push_closure); break; case vm_symbols: vmSymbols::oops_do(&mark_and_push_closure); break; case code_cache: // Do not treat nmethods as strong roots for mark/sweep, since we can unload them. //CodeCache::scavenge_root_nmethods_do(CodeBlobToOopClosure(&mark_and_push_closure)); break; default: fatal("Unknown root type"); } // Do the real work cm->follow_marking_stacks(); // cm->deallocate_stacks(); } // // RefProcTaskProxy // void RefProcTaskProxy::do_it(GCTaskManager* manager, uint which) { assert(Universe::heap()->is_gc_active(), "called outside gc"); NOT_PRODUCT(TraceTime tm("RefProcTask", PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty)); ParCompactionManager* cm = ParCompactionManager::gc_thread_compaction_manager(which); assert(cm->stacks_have_been_allocated(), "Stack space has not been allocated"); PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm); PSParallelCompact::FollowStackClosure follow_stack_closure(cm); _rp_task.work(_work_id, *PSParallelCompact::is_alive_closure(), mark_and_push_closure, follow_stack_closure); } // // RefProcTaskExecutor // void RefProcTaskExecutor::execute(ProcessTask& task) { ParallelScavengeHeap* heap = PSParallelCompact::gc_heap(); uint parallel_gc_threads = heap->gc_task_manager()->workers(); RegionTaskQueueSet* qset = ParCompactionManager::region_array(); ParallelTaskTerminator terminator(parallel_gc_threads, qset); GCTaskQueue* q = GCTaskQueue::create(); for(uint i=0; i<parallel_gc_threads; i++) { q->enqueue(new RefProcTaskProxy(task, i)); } if (task.marks_oops_alive()) { if (parallel_gc_threads>1) { for (uint j=0; j<parallel_gc_threads; j++) { q->enqueue(new StealMarkingTask(&terminator)); } } } PSParallelCompact::gc_task_manager()->execute_and_wait(q); } void RefProcTaskExecutor::execute(EnqueueTask& task) { ParallelScavengeHeap* heap = PSParallelCompact::gc_heap(); uint parallel_gc_threads = heap->gc_task_manager()->workers(); GCTaskQueue* q = GCTaskQueue::create(); for(uint i=0; i<parallel_gc_threads; i++) { q->enqueue(new RefEnqueueTaskProxy(task, i)); } PSParallelCompact::gc_task_manager()->execute_and_wait(q); } // // StealMarkingTask // StealMarkingTask::StealMarkingTask(ParallelTaskTerminator* t) : _terminator(t) {} void StealMarkingTask::do_it(GCTaskManager* manager, uint which) { assert(Universe::heap()->is_gc_active(), "called outside gc"); NOT_PRODUCT(TraceTime tm("StealMarkingTask", PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty)); ParCompactionManager* cm = ParCompactionManager::gc_thread_compaction_manager(which); PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm); oop obj = NULL; ObjArrayTask task; int random_seed = 17; do { while (ParCompactionManager::steal_objarray(which, &random_seed, task)) { objArrayKlass* const k = (objArrayKlass*)task.obj()->blueprint(); k->oop_follow_contents(cm, task.obj(), task.index()); cm->follow_marking_stacks(); } while (ParCompactionManager::steal(which, &random_seed, obj)) { obj->follow_contents(cm); cm->follow_marking_stacks(); } } while (!terminator()->offer_termination()); } // // StealRegionCompactionTask // StealRegionCompactionTask::StealRegionCompactionTask(ParallelTaskTerminator* t): _terminator(t) {} void StealRegionCompactionTask::do_it(GCTaskManager* manager, uint which) { assert(Universe::heap()->is_gc_active(), "called outside gc"); NOT_PRODUCT(TraceTime tm("StealRegionCompactionTask", PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty)); ParCompactionManager* cm = ParCompactionManager::gc_thread_compaction_manager(which); // Has to drain stacks first because there may be regions on // preloaded onto the stack and this thread may never have // done a draining task. Are the draining tasks needed? cm->drain_region_stacks(); size_t region_index = 0; int random_seed = 17; // If we're the termination task, try 10 rounds of stealing before // setting the termination flag while(true) { if (ParCompactionManager::steal(which, &random_seed, region_index)) { PSParallelCompact::fill_and_update_region(cm, region_index); cm->drain_region_stacks(); } else { if (terminator()->offer_termination()) { break; } // Go around again. } } return; } UpdateDensePrefixTask::UpdateDensePrefixTask( PSParallelCompact::SpaceId space_id, size_t region_index_start, size_t region_index_end) : _space_id(space_id), _region_index_start(region_index_start), _region_index_end(region_index_end) {} void UpdateDensePrefixTask::do_it(GCTaskManager* manager, uint which) { NOT_PRODUCT(TraceTime tm("UpdateDensePrefixTask", PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty)); ParCompactionManager* cm = ParCompactionManager::gc_thread_compaction_manager(which); PSParallelCompact::update_and_deadwood_in_dense_prefix(cm, _space_id, _region_index_start, _region_index_end); } void DrainStacksCompactionTask::do_it(GCTaskManager* manager, uint which) { assert(Universe::heap()->is_gc_active(), "called outside gc"); NOT_PRODUCT(TraceTime tm("DrainStacksCompactionTask", PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty)); ParCompactionManager* cm = ParCompactionManager::gc_thread_compaction_manager(which); // Process any regions already in the compaction managers stacks. cm->drain_region_stacks(); }