/*

 * 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.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();

};