/*

 * 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

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 *

 */

#include "logging/log.hpp"

#include "logging/logHandle.hpp"

#include "logging/logStream.hpp"

#include "memory/allocation.hpp"

#include "utilities/ticks.hpp"

class GCTraceCPUTime : public StackObj {

  bool _active;                 // true if times will be measured and printed

  double _starting_user_time;   // user time at start of measurement

  double _starting_system_time; // system time at start of measurement

  double _starting_real_time;   // real time at start of measurement

 public:

  GCTraceCPUTime();

  ~GCTraceCPUTime();

};

class GCTimer;

class GCTraceTimeImpl : public StackObj {

 private:

  LogTargetHandle _out_start;

  LogTargetHandle _out_stop;

  bool _enabled;

  Ticks _start_ticks;

  const char* _title;

  GCCause::Cause _gc_cause;

  GCTimer* _timer;

  size_t _heap_usage_before;

  void log_start(jlong start_counter);

  void log_stop(jlong start_counter, jlong stop_counter);

  void time_stamp(Ticks& ticks);

 public:

  GCTraceTimeImpl(LogTargetHandle out_start, LogTargetHandle out_end, const char* title, GCTimer* timer = NULL, GCCause::Cause gc_cause = GCCause::_no_gc, bool log_heap_usage = false);

  ~GCTraceTimeImpl();

};

template <LogLevelType Level, LogTagType T0, LogTagType T1, LogTagType T2, LogTagType T3, LogTagType T4, LogTagType GuardTag>

class GCTraceTimeImplWrapper : public StackObj {

  GCTraceTimeImpl _impl;

public:

  GCTraceTimeImplWrapper(const char* title, GCTimer* timer = NULL, GCCause::Cause gc_cause = GCCause::_no_gc, bool log_heap_usage = false);

  ~GCTraceTimeImplWrapper();

};

// Similar to GCTraceTimeImpl but is intended for concurrent phase logging,

// which is a bit simpler and should always print the start line, i.e. not add the "start" tag.

template <LogLevelType Level, LogTagType T0, LogTagType T1 = LogTag::__NO_TAG, LogTagType T2 = LogTag::__NO_TAG, LogTagType T3 = LogTag::__NO_TAG,

    LogTagType T4 = LogTag::__NO_TAG, LogTagType GuardTag = LogTag::__NO_TAG>

class GCTraceConcTimeImpl : public StackObj {

 private:

  bool _enabled;

  jlong _start_time;

  const char* _title;

 public:

  GCTraceConcTimeImpl(const char* title);

  ~GCTraceConcTimeImpl();

  jlong start_time() { return _start_time; }

};