author | coleenp |
Thu, 25 Apr 2019 10:56:31 -0400 | |
changeset 54623 | 1126f0607c70 |
parent 54263 | 3cabb47758c9 |
child 57360 | 5d043a159d5c |
child 58863 | c16ac7a2eba4 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2011, 2019, 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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#include "precompiled.hpp" |
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#include "jfr/jfr.hpp" |
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#include "jfr/jni/jfrJavaSupport.hpp" |
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#include "jfr/recorder/jfrRecorder.hpp" |
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#include "jfr/recorder/repository/jfrChunkState.hpp" |
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#include "jfr/recorder/repository/jfrChunkWriter.hpp" |
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8217362: Emergency dump does not work when disk=false is set
mgronlun
parents:
53897
diff
changeset
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#include "jfr/recorder/repository/jfrEmergencyDump.hpp" |
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#include "jfr/recorder/repository/jfrRepository.hpp" |
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#include "jfr/recorder/service/jfrPostBox.hpp" |
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#include "memory/resourceArea.hpp" |
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#include "runtime/mutex.hpp" |
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#include "runtime/thread.inline.hpp" |
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static JfrRepository* _instance = NULL; |
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JfrRepository& JfrRepository::instance() { |
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return *_instance; |
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} |
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static JfrChunkWriter* _chunkwriter = NULL; |
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static bool initialize_chunkwriter() { |
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assert(_chunkwriter == NULL, "invariant"); |
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_chunkwriter = new JfrChunkWriter(); |
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return _chunkwriter != NULL && _chunkwriter->initialize(); |
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} |
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JfrChunkWriter& JfrRepository::chunkwriter() { |
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return *_chunkwriter; |
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} |
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JfrRepository::JfrRepository(JfrPostBox& post_box) : _path(NULL), _post_box(post_box) {} |
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bool JfrRepository::initialize() { |
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return initialize_chunkwriter(); |
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} |
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JfrRepository::~JfrRepository() { |
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if (_path != NULL) { |
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JfrCHeapObj::free(_path, strlen(_path) + 1); |
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_path = NULL; |
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} |
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if (_chunkwriter != NULL) { |
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delete _chunkwriter; |
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_chunkwriter = NULL; |
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} |
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} |
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JfrRepository* JfrRepository::create(JfrPostBox& post_box) { |
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assert(_instance == NULL, "invariant"); |
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_instance = new JfrRepository(post_box); |
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return _instance; |
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} |
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void JfrRepository::destroy() { |
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assert(_instance != NULL, "invariant"); |
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delete _instance; |
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_instance = NULL; |
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} |
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void JfrRepository::on_vm_error() { |
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assert(!JfrStream_lock->owned_by_self(), "invariant"); |
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8217362: Emergency dump does not work when disk=false is set
mgronlun
parents:
53897
diff
changeset
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if (_path == NULL) { |
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// completed already |
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return; |
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} |
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mgronlun
parents:
53897
diff
changeset
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JfrEmergencyDump::on_vm_error(_path); |
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} |
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bool JfrRepository::set_path(const char* path) { |
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assert(path != NULL, "trying to set the repository path with a NULL string!"); |
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if (_path != NULL) { |
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// delete existing |
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JfrCHeapObj::free(_path, strlen(_path) + 1); |
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} |
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const size_t path_len = strlen(path); |
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_path = JfrCHeapObj::new_array<char>(path_len + 1); |
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if (_path == NULL) { |
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return false; |
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} |
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strncpy(_path, path, path_len + 1); |
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return true; |
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} |
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void JfrRepository::set_chunk_path(const char* path) { |
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assert(JfrStream_lock->owned_by_self(), "invariant"); |
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chunkwriter().set_chunk_path(path); |
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} |
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void JfrRepository::notify_on_new_chunk_path() { |
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if (Jfr::is_recording()) { |
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instance()._post_box.post(MSG_ROTATE); |
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} |
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} |
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/** |
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* Sets the file where data should be written. |
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* |
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* Recording Previous Current Action |
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* ============================================== |
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* true null null Ignore, keep recording in-memory |
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* true null file1 Start disk recording |
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* true file null Copy out metadata to disk and continue in-memory recording |
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* true file1 file2 Copy out metadata and start with new File (file2) |
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* false * null Ignore, but start recording to memory |
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* false * file Ignore, but start recording to disk |
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*/ |
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void JfrRepository::set_chunk_path(jstring path, JavaThread* jt) { |
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DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(jt)); |
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ResourceMark rm(jt); |
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const char* const canonical_chunk_path = JfrJavaSupport::c_str(path, jt); |
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{ |
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8222811: Consolidate MutexLockerEx and MutexLocker
coleenp
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changeset
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MutexLocker stream_lock(JfrStream_lock, Mutex::_no_safepoint_check_flag); |
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if (NULL == canonical_chunk_path && !_chunkwriter->is_valid()) { |
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// new output is NULL and current output is NULL |
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return; |
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} |
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instance().set_chunk_path(canonical_chunk_path); |
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} |
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notify_on_new_chunk_path(); |
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} |
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void JfrRepository::set_path(jstring location, JavaThread* jt) { |
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DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(jt)); |
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ResourceMark rm(jt); |
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const char* const path = JfrJavaSupport::c_str(location, jt); |
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if (path != NULL) { |
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instance().set_path(path); |
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} |
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} |
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bool JfrRepository::open_chunk(bool vm_error /* false */) { |
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assert(JfrStream_lock->owned_by_self(), "invariant"); |
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if (vm_error) { |
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ResourceMark rm; |
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54263
3cabb47758c9
8217362: Emergency dump does not work when disk=false is set
mgronlun
parents:
53897
diff
changeset
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_chunkwriter->set_chunk_path(JfrEmergencyDump::build_dump_path(_path)); |
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} |
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return _chunkwriter->open(); |
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} |
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8217647: JFR: recordings on 32-bit systems unreadable
bulasevich
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size_t JfrRepository::close_chunk(int64_t metadata_offset) { |
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return _chunkwriter->close(metadata_offset); |
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} |