1 /*
   2  * Copyright (c) 2016, 2017, 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 #ifndef SHARE_GC_Z_ZTRACER_HPP
  25 #define SHARE_GC_Z_ZTRACER_HPP
  26 
  27 #include "gc/shared/gcTrace.hpp"
  28 #include "gc/z/zAllocationFlags.hpp"
  29 
  30 class ZStatCounter;
  31 class ZStatPhase;
  32 class ZStatSampler;
  33 
  34 class ZTracer : public GCTracer {
  35 private:
  36   static ZTracer* _tracer;
  37 
  38   ZTracer();
  39 
  40   void send_stat_counter(uint32_t counter_id, uint64_t increment, uint64_t value);
  41   void send_stat_sampler(uint32_t sampler_id, uint64_t value);
  42   void send_thread_phase(const char* name, const Ticks& start, const Ticks& end);
  43   void send_page_alloc(size_t size, size_t used, size_t free, size_t cache, bool nonblocking, bool noreserve);
  44 
  45 public:
  46   static ZTracer* tracer();
  47   static void initialize();
  48 
  49   void report_stat_counter(const ZStatCounter& counter, uint64_t increment, uint64_t value);
  50   void report_stat_sampler(const ZStatSampler& sampler, uint64_t value);
  51   void report_thread_phase(const ZStatPhase& phase, const Ticks& start, const Ticks& end);
  52   void report_thread_phase(const char* name, const Ticks& start, const Ticks& end);
  53   void report_page_alloc(size_t size, size_t used, size_t free, size_t cache, ZAllocationFlags flags);
  54 };
  55 
  56 class ZTraceThreadPhase : public StackObj {
  57 private:
  58   const Ticks       _start;
  59   const char* const _name;
  60 
  61 public:
  62   ZTraceThreadPhase(const char* name);
  63   ~ZTraceThreadPhase();
  64 };
  65 
  66 #endif // SHARE_GC_Z_ZTRACER_HPP