author | mgronlun |
Sun, 08 Jul 2018 11:54:08 +0200 | |
changeset 51004 | 162867fa0f8d |
parent 50113 | caf115bb98ad |
child 52569 | 1a534c7926cc |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2012, 2018, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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||
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#include "precompiled.hpp" |
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#include "jfr/jni/jfrJavaSupport.hpp" |
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#include "jfr/periodic/jfrThreadCPULoadEvent.hpp" |
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#include "jfr/recorder/jfrRecorder.hpp" |
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#include "jfr/recorder/checkpoint/jfrCheckpointManager.hpp" |
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#include "jfr/recorder/checkpoint/types/traceid/jfrTraceId.inline.hpp" |
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#include "jfr/recorder/service/jfrOptionSet.hpp" |
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#include "jfr/recorder/storage/jfrStorage.hpp" |
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#include "jfr/recorder/stacktrace/jfrStackTraceRepository.hpp" |
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#include "jfr/support/jfrThreadLocal.hpp" |
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#include "memory/allocation.inline.hpp" |
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#include "runtime/os.hpp" |
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#include "runtime/thread.inline.hpp" |
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/* This data structure is per thread and only accessed by the thread itself, no locking required */ |
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JfrThreadLocal::JfrThreadLocal() : |
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_java_event_writer(NULL), |
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_java_buffer(NULL), |
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_native_buffer(NULL), |
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_shelved_buffer(NULL), |
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_stackframes(NULL), |
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_trace_id(JfrTraceId::assign_thread_id()), |
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_thread_cp(), |
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_data_lost(0), |
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_stack_trace_id(max_julong), |
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_user_time(0), |
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_cpu_time(0), |
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_wallclock_time(os::javaTimeNanos()), |
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_stack_trace_hash(0), |
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_stackdepth(0), |
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_entering_suspend_flag(0), |
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_dead(false) {} |
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u8 JfrThreadLocal::add_data_lost(u8 value) { |
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_data_lost += value; |
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return _data_lost; |
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} |
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bool JfrThreadLocal::has_thread_checkpoint() const { |
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return _thread_cp.valid(); |
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} |
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void JfrThreadLocal::set_thread_checkpoint(const JfrCheckpointBlobHandle& ref) { |
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assert(!_thread_cp.valid(), "invariant"); |
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_thread_cp = ref; |
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} |
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const JfrCheckpointBlobHandle& JfrThreadLocal::thread_checkpoint() const { |
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return _thread_cp; |
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} |
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void JfrThreadLocal::set_dead() { |
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assert(!is_dead(), "invariant"); |
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_dead = true; |
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} |
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void JfrThreadLocal::on_exit(JavaThread* thread) { |
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if (JfrRecorder::is_recording()) { |
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JfrCheckpointManager::write_thread_checkpoint(thread); |
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JfrThreadCPULoadEvent::send_event_for_thread(thread); |
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} |
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thread->jfr_thread_local()->set_dead(); |
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} |
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void JfrThreadLocal::on_destruct(Thread* thread) { |
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JfrThreadLocal* const tl = thread->jfr_thread_local(); |
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if (tl->has_native_buffer()) { |
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release(tl->native_buffer(), thread); |
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} |
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if (tl->has_java_buffer()) { |
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release(tl->java_buffer(), thread); |
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} |
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assert(tl->shelved_buffer() == NULL, "invariant"); |
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if (thread->jfr_thread_local()->has_java_event_writer()) { |
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JfrJavaSupport::destroy_global_jni_handle(tl->java_event_writer()); |
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} |
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destroy_stackframes(thread); |
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} |
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JfrBuffer* JfrThreadLocal::acquire(Thread* thread, size_t size) { |
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return JfrStorage::acquire_thread_local(thread, size); |
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} |
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void JfrThreadLocal::release(JfrBuffer* buffer, Thread* thread) { |
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assert(buffer != NULL, "invariant"); |
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JfrStorage::release_thread_local(buffer, thread); |
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} |
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JfrBuffer* JfrThreadLocal::install_native_buffer() const { |
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assert(!has_native_buffer(), "invariant"); |
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_native_buffer = acquire(Thread::current()); |
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return _native_buffer; |
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} |
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JfrBuffer* JfrThreadLocal::install_java_buffer() const { |
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assert(!has_java_buffer(), "invariant"); |
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assert(!has_java_event_writer(), "invariant"); |
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_java_buffer = acquire(Thread::current()); |
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return _java_buffer; |
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} |
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JfrStackFrame* JfrThreadLocal::install_stackframes() const { |
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assert(_stackframes == NULL, "invariant"); |
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_stackdepth = (u4)JfrOptionSet::stackdepth(); |
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guarantee(_stackdepth > 0, "Stackdepth must be > 0"); |
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_stackframes = NEW_C_HEAP_ARRAY(JfrStackFrame, _stackdepth, mtTracing); |
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return _stackframes; |
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} |
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void JfrThreadLocal::destroy_stackframes(Thread* thread) { |
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assert(thread != NULL, "invariant"); |
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JfrStackFrame* frames = thread->jfr_thread_local()->stackframes(); |
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if (frames != NULL) { |
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FREE_C_HEAP_ARRAY(JfrStackFrame, frames); |
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thread->jfr_thread_local()->set_stackframes(NULL); |
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} |
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} |