skia/ext/SkTraceMemoryDump_chrome.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef SKIA_EXT_SK_TRACE_MEMORY_DUMP_CHROME_H_
   6 #define SKIA_EXT_SK_TRACE_MEMORY_DUMP_CHROME_H_
   7
   8 #include <string>
   9
  10 #include "base/macros.h"
  11 #include "third_party/skia/include/core/SkTraceMemoryDump.h"
  12
  13 namespace base {
  14 namespace trace_event {
  15 class MemoryAllocatorDump;
  16 class ProcessMemoryDump;
  17 }
  18 }
  19
  20 namespace skia {
  21
  22 class SkTraceMemoryDump_Chrome : public SkTraceMemoryDump {
  23  public:
  24   // This should never outlive the OnMemoryDump call since the
  25   // ProcessMemoryDump is valid only in that timeframe. Optional
  26   // |dump_name_prefix| argument specifies the prefix appended to the dump
  27   // name skia provides. By default it is taken as empty string.
  28   SkTraceMemoryDump_Chrome(
  29       base::trace_event::ProcessMemoryDump* process_memory_dump);
  30
  31   SkTraceMemoryDump_Chrome(
  32       const char* dump_name_prefix,
  33       base::trace_event::ProcessMemoryDump* process_memory_dump);
  34
  35   ~SkTraceMemoryDump_Chrome() override;
  36
  37   // SkTraceMemoryDump implementation:
  38   void dumpNumericValue(const char* dumpName,
  39                         const char* valueName,
  40                         const char* units,
  41                         uint64_t value) override;
  42   void setMemoryBacking(const char* dumpName,
  43                         const char* backingType,
  44                         const char* backingObjectId) override;
  45   void setDiscardableMemoryBacking(
  46       const char* dumpName,
  47       const SkDiscardableMemory& discardableMemoryObject) override;
  48
  49  protected:
  50   base::trace_event::ProcessMemoryDump* process_memory_dump() {
  51     return process_memory_dump_;
  52   }
  53
  54  private:
  55   std::string dump_name_prefix_;
  56
  57   base::trace_event::ProcessMemoryDump* process_memory_dump_;
  58
  59   // Helper to create allocator dumps.
  60   base::trace_event::MemoryAllocatorDump* GetOrCreateAllocatorDump(
  61       const char* dumpName);
  62
  63   DISALLOW_COPY_AND_ASSIGN(SkTraceMemoryDump_Chrome);
  64 };
  65
  66 }  // namespace skia
  67
  68 #endif  // SKIA_EXT_SK_TRACE_MEMORY_DUMP_CHROME_H_