JDK14/Java14源码在线阅读

/*
 * Copyright (c) 2012, 2019, 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.
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#ifndef SHARE_JFR_RECORDER_JFREVENTSETTING_HPP
#define SHARE_JFR_RECORDER_JFREVENTSETTING_HPP

#include "jni.h"
#include "jfr/utilities/jfrAllocation.hpp"
#include "jfrfiles/jfrEventControl.hpp"

//
// Native event settings as an associative array using the event id as key.
//
class JfrEventSetting : AllStatic {
 private:
  static JfrNativeSettings _jvm_event_settings;
  static jfrNativeEventSetting& setting(JfrEventId event_id);

 public:
  static void set_enabled(jlong event_id, bool enabled);
  static bool is_enabled(JfrEventId event_id);
  static void set_stacktrace(jlong event_id, bool enabled);
  static bool has_stacktrace(JfrEventId event_id);
  static bool set_threshold(jlong event_id, jlong threshold_ticks);
  static jlong threshold(JfrEventId event_id);

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