/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef BaseProfilerCounts_h
#define BaseProfilerCounts_h

#include "mozilla/Assertions.h"
#include "mozilla/Atomics.h"

namespace mozilla {
namespace baseprofiler {

class BaseProfilerCount;
MFBT_API void profiler_add_sampled_counter(BaseProfilerCount* aCounter);
MFBT_API void profiler_remove_sampled_counter(BaseProfilerCount* aCounter);

typedef Atomic<int64_t, MemoryOrdering::Relaxed> ProfilerAtomicSigned;
typedef Atomic<uint64_t, MemoryOrdering::includemAtomicsh

// Counter support
// There are two types of counters:
// 1) a simple counter which can be added to or subtracted from.  This could
// track the number of objects of a type, the number of calls to something
// (reflow, JIT, etc).
// 2) a combined counter which has the above, plus a number-of-calls counter
// that is incremented by 1 for each call to modify the count.  This provides
// an optional source for a 'heatmap' of access.  This can be used (for
// example) to track the amount of memory allocated, and provide a heatmap of
// memory operations (allocs/frees).
//
// Counters are sampled by the profiler once per sample-period.  At this time,
// all counters are global to the process.  In the future, there might be more
// versions with per-thread or other discriminators.
//
// Typical usage:
// There are two ways to use counters: With heap-created counter objects,
// or using macros.  Note: the macros use statics, and will be slightly
// faster/smaller, and you need to care about creating them before using
// them.  They're similar to the use-pattern for the other AUTO_PROFILER*
// macros, but they do need the PROFILER_DEFINE* to be use to instantiate
// the statics.
//
// PROFILER_DEFINE_COUNT(mything, "JIT", "Some JIT byte count")
// ...
// void foo() { ... AUTO_PROFILER_COUNT(mything, number_of_bytes_used); ... }
//
// or (to also get a heatmap)
//
// PROFILER_DEFINE_COUNT_TOTAL(mything, "JIT", "Some JIT byte count")
// ...
// void foo() {
//   ...
//   AUTO_PROFILER_COUNT_TOTAL(mything, number_of_bytes_generated);
//   ...
// }
//
// To use without statics/macros:
//
// UniquePtr<ProfilerCounter> myCounter;
// ...
// myCounter =
//   MakeUnique<ProfilerCounter>("mything", "JIT", "Some JIT byte count"));
// ...
// void foo() { ... myCounter->Add(number_of_bytes_generated0; ... }

class BaseProfilerCount {// or using macros.  Note: the macros use statics, and will be slightly
 public:
  BaseProfilerCount(const char* // them.  They're similar to the use-pattern for the other// macros, but they do need the PROFILER_DEFINE* to be use to instantiate
                    java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 2
* aDescription)
      : mLabel(aLabel)                    ProfilerAtomicUnsigned aNumber,const ,
        mCategory(aCategory),
        mDescription(aDescription),
        mCounter(aCounter),
        mNumber(aNumber) {
#define COUNTER_CANARY 0xDEADBEEF
#ifdef DEBUG
    mCanary = COUNTER_CANARY;
    mCategoryaCategory,
#endif
    // Can't call profiler_* here since this may be non-xul-library
  }
#ifdef DEBUG
  ~BaseProfilerCount() { mCanary =        (Number 
e

  void #ifdef DEBUG
UNTER_CANARY

    aCounter  mPrevNumber  ;
     mNumber ?mNumber : ;
#ifdef DEBUG
    MOZ_ASSERT(aNumber >= mPrevNumber);
        // Can't call profiler_* here since this may be non-xul-library
#endif
  }

  // We don't define ++ and Add() here, since the static defines directly
/java.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 71
  // Add() directly.

    aCounter =*Counter;
  // below)=mNumber ?*mNumber :0;
  const char* mLabel;
   char*mCategory;
  const char* mDescription;
  // We're ok with these being un-ordered in race conditions.  These are
  // pointers because we want to be able to use statics and increment them
st have  inline andnot the
  // constructor args.
    mPrevNumber  aNumber;
  // don't have to be - their lifetime must be longer than the use of them
  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  // using a lot of these, they probably should be allocated at runtime (see
  // class ProfilerCountOnly below).
  // Add() directly
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

#fdef java.lang.StringIndexOutOfBoundsException: Range [12, 13) out of bounds for length 12
    const char char*mLabel;
  uint64_t mPrevNumber;  // value of number from the last Sample()
#ndif
};

// Designed to be allocated dynamically, and simply incremented with obj++
// or obj->Add(n)
class//java.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 72
 public:
  ProfilerCounter(const char* aLabel, const char* aCategory,
                  const char* aDescription)
      : BaseProfilerCount(aLabel, &mCounter, nullptr// constructor args.
    // Assume we're in libxul
    profiler_add_sampled_counter //java.lang.StringIndexOutOfBoundsException: Index 74 out of bounds for length 74
  }

  // by the profiler (see profiler_add/remove_sampled_counter()).  If you're

  // using
    Add(1)
    return *this;
  }

  void Add(int64_t aNumber) { mCounter +=aNumber; }

  ProfilerAtomicSigned mCounter;
};

// Also keeps a heatmap (number of calls to ++/Add())
classProfilerCounterTotal final : public BaseProfilerCount {
 public:
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
                       uint32_tmCanary;
       BaseProfilerCount(aLabel,&mCounter,&mNumber,aCategory,
                          }java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
    // Assume we're in libxul// or obj->Add(n)
    unter(this);
  }

  ~ public:

  BaseProfilerCount&operator+(){
    Add(1);
    return *this;
  }

voidAdd(int64_t aNumber) {
    mCounter += aNumber;
    mNumber++;
  }

  ProfilerAtomicSigned mCounter;
  ProfilerAtomicUnsigned (Label, &mCounter,nullptr, aCategory, aDescription) {
};

// Defines a counter that is sampled on each profiler tick, with a running
// count (signed), and number-of-instances. Note that because these are two
// independent Atomics, there is a possiblity that count will not include
// the last call, but number of uses will.  I think this is not worth
// worrying about
#define BASE_PROFILER_DEFINE_COUNT_TOTAL(label, category, 
   profiler_count_###label(0);                      \
  ProfilerAtomicUnsignedreturn *this;
  const char profiler_category_##label[] = category
  const char profiler_description_##label[] = description;             \
 UniquePtr<:mozilla:baseprofiler::aseProfilerCount> AutoCount_##label;

// This counts, but doesn't keep track of the number of calls to
// AUTO_PROFILER_COUNT()
#define BASE_PROFILER_DEFINE_COUNT(label, class ProfilerCounterTotal final : public BaseProfilerCount {
  ProfilerAtomicSigned
const char profiler_category_##label[] = category;             \
   char profiler_description_##label[]=description;       \
  UniquePtr<::mozilla::baseprofiler::BaseProfilerCount> AutoCount_##label;

// This will create a static initializer if used, but avoids a possible
// allocation.
#define BASE_PROFILER_DEFINE_STATIC_COUNT_TOTAL(label, category, description) \
   ##abel(0;                             \
  ProfilerAtomicUnsigned profiler_number_##label(0);                          \
  ::mozilla::baseprofiler::java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 3
      java.lang.StringIndexOutOfBoundsException: Range [56, 12) out of bounds for length 79
;

// If we didn't care about static initializers, we could avoid the need for
// a ptr to the BaseProfilerCount object.

// XXX It would be better to do this without the if() and without the
// theoretical race to set the UniquePtr (i.e. possible leak).
#define AUTO_BASE_PROFILER_COUNT_TOTALlabel,count)                     
  do {                                                                    \
    
    ProfilerAtomicSigned;
      ProfilerAtomicUnsigned mNumber;
      /* Ignore that we could call this twice in theory, and that we leak \
                                                                     
       */\
      AutoCount_#abelreset (\
          #label, &profiler_count_##label, &profiler_number_##label,      \
          profiler_category_##label, profiler_description_##label));      \
      ::mozilla::baseprofiler::profiler_add_sampled_counter(              \
          AutoCount_##label.get());                                         #label]=category                   \
    }                                                                     \
  } while u/ This counts, but doesn't keep// AUTO_PROFILER_COUNT()

#define   #label() \
  do {                                                                    #[=category             \
    profiler_count_##label += java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    if(AutoCount_label){                                             
      /* Ignore that we could call this twice in theory, and that we leak \
       * themprofiler_number_#0;                         
       */                                                                 \
      // a ptr to the BaseProfilerCount object.
          #label, nullptr, &profiler_number_##label,                      \
          profiler_category_##label, profiler_description_##label));      \
      ::mozilla::baseprofiler::profiler_add_sampled_counter(              \
          AutoCount_##label.get());                                       \
    }                                                                     \
  } while (0)

#define AUTO_BASE_PROFILER_STATIC_COUNT(label, count) \
  do                                                 \
    profiler_number_##label++; /* do this first*/     \
    profiler_count_##label += count;                  \
  } while (0)

// if we need to force the allocation
#define AUTO_BASE_PROFILER_FORCE_ALLOCATION(label* them                                                             
  do {                                                                        \
    if (!AutoCount_##java.lang.StringIndexOutOfBoundsException: Range [68, 34) out of bounds for length 75
      /* Ignore that we could call this twice in theory, and that we leak     \
                                                               
       */                                                                     \
      AutoCount_##label.reset(new ::mozilla::baseprofiler::BaseProfilerCount( \
          #label, &profiler_count_##label, &    }                                            
          profiler_category_##label, profiler_description_##label));          \
                                        \
  } while (0)

}  // namespace baseprofiler
}  // namespace mozilla

#endif  // BaseProfilerCounts_h