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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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#include "precompiled.hpp"
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#include "jfr/dcmd/jfrDcmds.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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#include "jfr/utilities/jfrTime.hpp"
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#include "jfr/utilities/jfrTimeConverter.hpp"
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#include "logging/log.hpp"
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#include "runtime/os.inline.hpp"
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#include "runtime/thread.inline.hpp"
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JfrChunkState::JfrChunkState() :
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_path(NULL),
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_start_ticks(0),
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_start_nanos(0),
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_previous_start_ticks(0),
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_previous_start_nanos(0),
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_previous_checkpoint_offset(0) {}
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JfrChunkState::~JfrChunkState() {
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reset();
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}
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void JfrChunkState::reset() {
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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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set_previous_checkpoint_offset(0);
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}
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void JfrChunkState::set_previous_checkpoint_offset(jlong offset) {
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_previous_checkpoint_offset = offset;
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}
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jlong JfrChunkState::previous_checkpoint_offset() const {
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return _previous_checkpoint_offset;
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}
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jlong JfrChunkState::previous_start_ticks() const {
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return _previous_start_ticks;
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}
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jlong JfrChunkState::previous_start_nanos() const {
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return _previous_start_nanos;
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}
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void JfrChunkState::update_start_ticks() {
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_start_ticks = JfrTicks::now();
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}
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void JfrChunkState::update_start_nanos() {
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_start_nanos = os::javaTimeMillis() * JfrTimeConverter::NANOS_PER_MILLISEC;
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}
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void JfrChunkState::save_current_and_update_start_ticks() {
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_previous_start_ticks = _start_ticks;
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update_start_ticks();
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}
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void JfrChunkState::save_current_and_update_start_nanos() {
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_previous_start_nanos = _start_nanos;
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update_start_nanos();
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}
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void JfrChunkState::update_time_to_now() {
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save_current_and_update_start_nanos();
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save_current_and_update_start_ticks();
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}
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jlong JfrChunkState::last_chunk_duration() const {
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return _start_nanos - _previous_start_nanos;
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}
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static char* copy_path(const char* path) {
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assert(path != NULL, "invariant");
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const size_t path_len = strlen(path);
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char* new_path = JfrCHeapObj::new_array<char>(path_len + 1);
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strncpy(new_path, path, path_len);
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new_path[path_len] = '\0';
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return new_path;
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}
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void JfrChunkState::set_path(const char* path) {
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assert(JfrStream_lock->owned_by_self(), "invariant");
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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 (path != NULL) {
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_path = copy_path(path);
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}
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}
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const char* JfrChunkState::path() const {
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return _path;
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}
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