1 /*
   2  * Copyright (c) 2019, 2020, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "jfr/jfr.hpp"
  27 #include "jfr/leakprofiler/leakProfiler.hpp"
  28 #include "jfr/periodic/sampling/jfrThreadSampler.hpp"
  29 #include "jfr/recorder/jfrRecorder.hpp"
  30 #include "jfr/recorder/checkpoint/jfrCheckpointManager.hpp"
  31 #include "jfr/recorder/repository/jfrEmergencyDump.hpp"
  32 #include "jfr/recorder/service/jfrOptionSet.hpp"
  33 #include "jfr/recorder/repository/jfrRepository.hpp"
  34 #include "jfr/support/jfrThreadLocal.hpp"
  35 #include "runtime/java.hpp"
  36 
  37 bool Jfr::is_enabled() {
  38   return JfrRecorder::is_enabled();
  39 }
  40 
  41 bool Jfr::is_disabled() {
  42   return JfrRecorder::is_disabled();
  43 }
  44 
  45 bool Jfr::is_recording() {
  46   return JfrRecorder::is_recording();
  47 }
  48 
  49 void Jfr::on_create_vm_1() {
  50   if (!JfrRecorder::on_create_vm_1()) {
  51     vm_exit_during_initialization("Failure when starting JFR on_create_vm_1");
  52   }
  53 }
  54 
  55 void Jfr::on_create_vm_2() {
  56   if (!JfrRecorder::on_create_vm_2()) {
  57     vm_exit_during_initialization("Failure when starting JFR on_create_vm_2");
  58   }
  59 }
  60 
  61 void Jfr::on_create_vm_3() {
  62   if (!JfrRecorder::on_create_vm_3()) {
  63     vm_exit_during_initialization("Failure when starting JFR on_create_vm_3");
  64   }
  65 }
  66 
  67 void Jfr::on_unloading_classes() {
  68   if (JfrRecorder::is_created()) {
  69     JfrCheckpointManager::write_type_set_for_unloaded_classes();
  70   }
  71 }
  72 
  73 void Jfr::on_thread_start(Thread* t) {
  74   JfrThreadLocal::on_start(t);
  75 }
  76 
  77 void Jfr::on_thread_exit(Thread* t) {
  78   JfrThreadLocal::on_exit(t);
  79 }
  80 
  81 void Jfr::exclude_thread(Thread* t) {
  82   JfrThreadLocal::exclude(t);
  83 }
  84 
  85 void Jfr::include_thread(Thread* t) {
  86   JfrThreadLocal::include(t);
  87 }
  88 
  89 bool Jfr::is_excluded(Thread* t) {
  90   return t != NULL && t->jfr_thread_local()->is_excluded();
  91 }
  92 
  93 void Jfr::on_java_thread_dismantle(JavaThread* jt) {
  94   if (JfrRecorder::is_recording()) {
  95     JfrCheckpointManager::write_thread_checkpoint(jt);
  96   }
  97 }
  98 
  99 void Jfr::on_vm_shutdown(bool exception_handler) {
 100   if (JfrRecorder::is_recording()) {
 101     JfrEmergencyDump::on_vm_shutdown(exception_handler);
 102   }
 103 }
 104 
 105 void Jfr::weak_oops_do(BoolObjectClosure* is_alive, OopClosure* f) {
 106   if (LeakProfiler::is_running()) {
 107     LeakProfiler::weak_oops_do(is_alive, f);
 108   }
 109 }
 110 
 111 bool Jfr::on_flight_recorder_option(const JavaVMOption** option, char* delimiter) {
 112   return JfrOptionSet::parse_flight_recorder_option(option, delimiter);
 113 }
 114 
 115 bool Jfr::on_start_flight_recording_option(const JavaVMOption** option, char* delimiter) {
 116   return JfrOptionSet::parse_start_flight_recording_option(option, delimiter);
 117 }
 118 
 119 void Jfr::setup_emergency_dump_file_descriptor() {
 120   if (JfrRecorder::is_recording()) {
 121     JfrEmergencyDump::setup_emergency_dump_file_descriptor();
 122   }
 123 }
 124 
 125 const char* Jfr::saved_emergency_dump_path() {
 126   return JfrEmergencyDump::saved_emergency_dump_path();
 127 }
 128 
 129 const char* Jfr::repository_path() {
 130   return JfrRepository::path();
 131 }