/*
 * Copyright 2003-2006 Sun Microsystems, Inc.  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.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 *
 */

class RuntimeService : public AllStatic {
private:
  static PerfCounter* _sync_time_ticks;        // Accumulated time spent getting to safepoints
  static PerfCounter* _total_safepoints;
  static PerfCounter* _safepoint_time_ticks;   // Accumulated time at safepoints
  static PerfCounter* _application_time_ticks; // Accumulated time not at safepoints
  static PerfCounter* _thread_interrupt_signaled_count;// os:interrupt thr_kill
  static PerfCounter* _interrupted_before_count;  // _INTERRUPTIBLE OS_INTRPT
  static PerfCounter* _interrupted_during_count;  // _INTERRUPTIBLE OS_INTRPT

  static TimeStamp _safepoint_timer;
  static TimeStamp _app_timer;

public:
  static void init();

  static jlong safepoint_sync_time_ms();
  static jlong safepoint_count();
  static jlong safepoint_time_ms();
  static jlong application_time_ms();

  static double last_safepoint_time_sec()      { return _safepoint_timer.seconds(); }
  static double last_application_time_sec()    { return _app_timer.seconds(); }

  // callbacks
  static void record_safepoint_begin();
  static void record_safepoint_synchronized();
  static void record_safepoint_end();
  static void record_application_start();

  // interruption events
  static void record_interrupted_before_count();
  static void record_interrupted_during_count();
  static void record_thread_interrupt_signaled_count();
};