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 /*

  * Copyright (c) 2012, 2014, 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.

  *

  * 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.

  *

  */

 #ifndef SHARE_VM_SERVICES_MEM_REPORTER_HPP

 #define SHARE_VM_SERVICES_MEM_REPORTER_HPP

 #if INCLUDE_NMT

 #include "oops/instanceKlass.hpp"

 #include "services/memBaseline.hpp"

 #include "services/nmtCommon.hpp"

 #include "services/mallocTracker.hpp"

 #include "services/virtualMemoryTracker.hpp"

 /*

  * Base class that provides helpers

 */

 class MemReporterBase : public StackObj {

  private:

   size_t        _scale;  // report in this scale

   outputStream* _output; // destination

  public:

   MemReporterBase(outputStream* out = NULL, size_t scale = K)

     : _scale(scale) {

     _output = (out == NULL) ? tty : out;

   }

  protected:

   inline outputStream* output() const {

     return _output;

   }

   // Current reporting scale

   inline const char* current_scale() const {

     return NMTUtil::scale_name(_scale);

   }

   // Convert memory amount in bytes to current reporting scale

   inline size_t amount_in_current_scale(size_t amount) const {

     return NMTUtil::amount_in_scale(amount, _scale);

   }

   // Convert diff amount in bytes to current reporting scale

   inline long diff_in_current_scale(size_t s1, size_t s2) const {

     long amount = (long)(s1 - s2);

     long scale = (long)_scale;

     amount = (amount > 0) ? (amount + scale / 2) : (amount - scale / 2);

     return amount / scale;

   }

   // Helper functions

   // Calculate total reserved and committed amount

   size_t reserved_total(const MallocMemory* malloc, const VirtualMemory* vm) const;

   size_t committed_total(const MallocMemory* malloc, const VirtualMemory* vm) const;

   // Print summary total, malloc and virtual memory

   void print_total(size_t reserved, size_t committed) const;

   void print_malloc(size_t amount, size_t count) const;

   void print_virtual_memory(size_t reserved, size_t committed) const;

   void print_malloc_line(size_t amount, size_t count) const;

   void print_virtual_memory_line(size_t reserved, size_t committed) const;

   void print_arena_line(size_t amount, size_t count) const;

   void print_virtual_memory_region(const char* type, address base, size_t size) const;

 };

 /*

  * The class is for generating summary tracking report.

  */

 class MemSummaryReporter : public MemReporterBase {

  private:

   MallocMemorySnapshot*   _malloc_snapshot;

   VirtualMemorySnapshot*  _vm_snapshot;

   size_t                  _class_count;

  public:

   // Report summary tracking data from global snapshots directly.

   // This constructor is used for final reporting and hs_err reporting.

   MemSummaryReporter(MallocMemorySnapshot* malloc_snapshot,

     VirtualMemorySnapshot* vm_snapshot, outputStream* output,

     size_t class_count = 0, size_t scale = K) :

     MemReporterBase(output, scale),

     _malloc_snapshot(malloc_snapshot),

     _vm_snapshot(vm_snapshot) {

     if (class_count == 0) {

       _class_count = InstanceKlass::number_of_instance_classes();

     } else {

       _class_count = class_count;

     }

   }

   // This constructor is for normal reporting from a recent baseline.

   MemSummaryReporter(MemBaseline& baseline, outputStream* output,

     size_t scale = K) : MemReporterBase(output, scale),

     _malloc_snapshot(baseline.malloc_memory_snapshot()),

     _vm_snapshot(baseline.virtual_memory_snapshot()),

     _class_count(baseline.class_count()) { }

   // Generate summary report

   virtual void report();

  private:

   // Report summary for each memory type

   void report_summary_of_type(MEMFLAGS type, MallocMemory* malloc_memory,

     VirtualMemory* virtual_memory);

 };

 /*

  * The class is for generating detail tracking report.

  */

 class MemDetailReporter : public MemSummaryReporter {

  private:

   MemBaseline&   _baseline;

  public:

   MemDetailReporter(MemBaseline& baseline, outputStream* output, size_t scale = K) :

     MemSummaryReporter(baseline, output, scale),

      _baseline(baseline) { }

   // Generate detail report.

   // The report contains summary and detail sections.

   virtual void report() {

     MemSummaryReporter::report();

     report_virtual_memory_map();

     report_detail();

   }

  private:

   // Report detail tracking data.

   void report_detail();

   // Report virtual memory map

   void report_virtual_memory_map();

   // Report malloc allocation sites

   void report_malloc_sites();

   // Report virtual memory reservation sites

   void report_virtual_memory_allocation_sites();

   // Report a virtual memory region

   void report_virtual_memory_region(const ReservedMemoryRegion* rgn);

 };

 /*

  * The class is for generating summary comparison report.

  * It compares current memory baseline against an early baseline.

  */

 class MemSummaryDiffReporter : public MemReporterBase {

  protected:

   MemBaseline&      _early_baseline;

   MemBaseline&      _current_baseline;

  public:

   MemSummaryDiffReporter(MemBaseline& early_baseline, MemBaseline& current_baseline,

     outputStream* output, size_t scale = K) : MemReporterBase(output, scale),

     _early_baseline(early_baseline), _current_baseline(current_baseline) {

     assert(early_baseline.baseline_type()   != MemBaseline::Not_baselined, "Not baselined");

     assert(current_baseline.baseline_type() != MemBaseline::Not_baselined, "Not baselined");

   }

   // Generate summary comparison report

   virtual void report_diff();

  private:

   // report the comparison of each memory type

   void diff_summary_of_type(MEMFLAGS type,

     const MallocMemory* early_malloc, const VirtualMemory* early_vm,

     const MallocMemory* current_malloc, const VirtualMemory* current_vm) const;

  protected:

   void print_malloc_diff(size_t current_amount, size_t current_count,

     size_t early_amount, size_t early_count) const;

   void print_virtual_memory_diff(size_t current_reserved, size_t current_committed,

     size_t early_reserved, size_t early_committed) const;

   void print_arena_diff(size_t current_amount, size_t current_count,

     size_t early_amount, size_t early_count) const;

 };

 /*

  * The class is for generating detail comparison report.

  * It compares current memory baseline against an early baseline,

  * both baselines have to be detail baseline.

  */

 class MemDetailDiffReporter : public MemSummaryDiffReporter {

  public:

   MemDetailDiffReporter(MemBaseline& early_baseline, MemBaseline& current_baseline,

     outputStream* output, size_t scale = K) :

     MemSummaryDiffReporter(early_baseline, current_baseline, output, scale) { }

   // Generate detail comparison report

   virtual void report_diff();

   // Malloc allocation site comparison

   void diff_malloc_sites() const;

   // Virutal memory reservation site comparison

   void diff_virtual_memory_sites() const;

   // New malloc allocation site in recent baseline

   void new_malloc_site (const MallocSite* site) const;

   // The malloc allocation site is not in recent baseline

   void old_malloc_site (const MallocSite* site) const;

   // Compare malloc allocation site, it is in both baselines

   void diff_malloc_site(const MallocSite* early, const MallocSite* current)  const;

   // New virtual memory allocation site in recent baseline

   void new_virtual_memory_site (const VirtualMemoryAllocationSite* callsite) const;

   // The virtual memory allocation site is not in recent baseline

   void old_virtual_memory_site (const VirtualMemoryAllocationSite* callsite) const;

   // Compare virtual memory allocation site, it is in both baseline

   void diff_virtual_memory_site(const VirtualMemoryAllocationSite* early,

                                 const VirtualMemoryAllocationSite* current)  const;

   void diff_malloc_site(const NativeCallStack* stack, size_t current_size,

     size_t currrent_count, size_t early_size, size_t early_count) const;

   void diff_virtual_memory_site(const NativeCallStack* stack, size_t current_reserved,

     size_t current_committed, size_t early_reserved, size_t early_committed) const;

 };

 #endif // INCLUDE_NMT

 #endif