tor-browser

The Tor Browser
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ProfilingCategory.cpp (4251B)


      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
      2 * vim: set ts=8 sts=2 et sw=2 tw=80:
      3 * This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #include "mozilla/BaseProfilingCategory.h"
      8 
      9 #include "mozilla/Assertions.h"
     10 
     11 namespace mozilla {
     12 namespace baseprofiler {
     13 
     14 // clang-format off
     15 
     16 // ProfilingSubcategory_X:
     17 // One enum for each category X, listing that category's subcategories. This
     18 // allows the sProfilingCategoryInfo macro construction below to look up a
     19 // per-category index for a subcategory.
     20 #define SUBCATEGORY_ENUMS_BEGIN_CATEGORY(name, labelAsString, color) \
     21  enum class ProfilingSubcategory_##name : uint32_t {
     22 #define SUBCATEGORY_ENUMS_SUBCATEGORY(category, name, labelAsString) \
     23    name,
     24 #define SUBCATEGORY_ENUMS_END_CATEGORY \
     25  };
     26 MOZ_PROFILING_CATEGORY_LIST(SUBCATEGORY_ENUMS_BEGIN_CATEGORY,
     27                            SUBCATEGORY_ENUMS_SUBCATEGORY,
     28                            SUBCATEGORY_ENUMS_END_CATEGORY)
     29 #undef SUBCATEGORY_ENUMS_BEGIN_CATEGORY
     30 #undef SUBCATEGORY_ENUMS_SUBCATEGORY
     31 #undef SUBCATEGORY_ENUMS_END_CATEGORY
     32 
     33 // sProfilingCategoryPairInfo:
     34 // A list of ProfilingCategoryPairInfos with the same order as
     35 // ProfilingCategoryPair, which can be used to map a ProfilingCategoryPair to
     36 // its information.
     37 #define CATEGORY_PAIR_INFO_BEGIN_CATEGORY(name, labelAsString, color)
     38 #define CATEGORY_PAIR_INFO_SUBCATEGORY(category, name, labelAsString) \
     39  {ProfilingCategory::category,                                  \
     40   uint32_t(ProfilingSubcategory_##category::name), labelAsString},
     41 #define CATEGORY_PAIR_INFO_END_CATEGORY
     42 static constexpr ProfilingCategoryPairInfo sProfilingCategoryPairInfo[] = {
     43  MOZ_PROFILING_CATEGORY_LIST(CATEGORY_PAIR_INFO_BEGIN_CATEGORY,
     44                              CATEGORY_PAIR_INFO_SUBCATEGORY,
     45                              CATEGORY_PAIR_INFO_END_CATEGORY)
     46 };
     47 #undef CATEGORY_PAIR_INFO_BEGIN_CATEGORY
     48 #undef CATEGORY_PAIR_INFO_SUBCATEGORY
     49 #undef CATEGORY_PAIR_INFO_END_CATEGORY
     50 
     51 // sSubcategoryNames_X:
     52 // One array per category, listing the subcategory names of that category.
     53 #define SUBCATEGORY_NAMES_BEGIN_CATEGORY(name, labelAsString, color) \
     54  static constexpr const char* sSubcategoryNames_##name[] = {
     55 #define SUBCATEGORY_NAMES_SUBCATEGORY(supercategory, name, labelAsString) labelAsString,
     56 #define SUBCATEGORY_NAMES_END_CATEGORY \
     57  };
     58 
     59 MOZ_PROFILING_CATEGORY_LIST(SUBCATEGORY_NAMES_BEGIN_CATEGORY,
     60                            SUBCATEGORY_NAMES_SUBCATEGORY,
     61                            SUBCATEGORY_NAMES_END_CATEGORY)
     62 
     63 #undef SUBCATEGORY_NAMES_BEGIN_CATEGORY
     64 #undef SUBCATEGORY_NAMES_SUBCATEGORY
     65 #undef SUBCATEGORY_NAMES_END_CATEGORY
     66 
     67 // sProfilingCategoryInfoList:
     68 // A list of ProfilingCategoryInfo for all categories.
     69 #define CATEGORY_INFO_LIST_BEGIN_CATEGORY(name, labelAsString, color) \
     70  {labelAsString, color, Span{sSubcategoryNames_##name}},
     71 #define CATEGORY_INFO_LIST_SUBCATEGORY(supercategory, name, labelAsString)
     72 #define CATEGORY_INFO_LIST_END_CATEGORY
     73 
     74 static constexpr ProfilingCategoryInfo sProfilingCategoryInfoList[] = {
     75  MOZ_PROFILING_CATEGORY_LIST(CATEGORY_INFO_LIST_BEGIN_CATEGORY,
     76                              CATEGORY_INFO_LIST_SUBCATEGORY,
     77                              CATEGORY_INFO_LIST_END_CATEGORY)
     78 };
     79 
     80 #undef CATEGORY_INFO_LIST_BEGIN_CATEGORY
     81 #undef CATEGORY_INFO_LIST_SUBCATEGORY
     82 #undef CATEGORY_INFO_LIST_END_CATEGORY
     83 
     84 // clang-format on
     85 
     86 Span<const ProfilingCategoryInfo> GetProfilingCategoryList() {
     87  return Span{sProfilingCategoryInfoList};
     88 }
     89 
     90 const ProfilingCategoryPairInfo& GetProfilingCategoryPairInfo(
     91    ProfilingCategoryPair aCategoryPair) {
     92  static_assert(
     93      std::size(sProfilingCategoryPairInfo) ==
     94          uint32_t(ProfilingCategoryPair::COUNT),
     95      "sProfilingCategoryPairInfo and ProfilingCategory need to have the "
     96      "same order and the same length");
     97 
     98  uint32_t categoryPairIndex = uint32_t(aCategoryPair);
     99  MOZ_RELEASE_ASSERT(categoryPairIndex <=
    100                     uint32_t(ProfilingCategoryPair::LAST));
    101  return sProfilingCategoryPairInfo[categoryPairIndex];
    102 }
    103 
    104 }  // namespace baseprofiler
    105 }  // namespace mozilla