src/v8/src/extensions/statistics-extension.cc

   1 // Copyright 2012 the V8 project 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 #include "statistics-extension.h"
   6
   7 namespace v8 {
   8 namespace internal {
   9
  10 const char* const StatisticsExtension::kSource =
  11     "native function getV8Statistics();";
  12
  13
  14 v8::Handle<v8::FunctionTemplate> StatisticsExtension::GetNativeFunctionTemplate(
  15     v8::Isolate* isolate,
  16     v8::Handle<v8::String> str) {
  17   ASSERT(strcmp(*v8::String::Utf8Value(str), "getV8Statistics") == 0);
  18   return v8::FunctionTemplate::New(isolate, StatisticsExtension::GetCounters);
  19 }
  20
  21
  22 static void AddCounter(v8::Isolate* isolate,
  23                        v8::Local<v8::Object> object,
  24                        StatsCounter* counter,
  25                        const char* name) {
  26   if (counter->Enabled()) {
  27     object->Set(v8::String::NewFromUtf8(isolate, name),
  28                 v8::Number::New(isolate, *counter->GetInternalPointer()));
  29   }
  30 }
  31
  32 static void AddNumber(v8::Isolate* isolate,
  33                       v8::Local<v8::Object> object,
  34                       intptr_t value,
  35                       const char* name) {
  36   object->Set(v8::String::NewFromUtf8(isolate, name),
  37               v8::Number::New(isolate, static_cast<double>(value)));
  38 }
  39
  40
  41 static void AddNumber64(v8::Isolate* isolate,
  42                         v8::Local<v8::Object> object,
  43                         int64_t value,
  44                         const char* name) {
  45   object->Set(v8::String::NewFromUtf8(isolate, name),
  46               v8::Number::New(isolate, static_cast<double>(value)));
  47 }
  48
  49
  50 void StatisticsExtension::GetCounters(
  51     const v8::FunctionCallbackInfo<v8::Value>& args) {
  52   Isolate* isolate = reinterpret_cast<Isolate*>(args.GetIsolate());
  53   Heap* heap = isolate->heap();
  54
  55   if (args.Length() > 0) {  // GC if first argument evaluates to true.
  56     if (args[0]->IsBoolean() && args[0]->ToBoolean()->Value()) {
  57       heap->CollectAllGarbage(Heap::kNoGCFlags, "counters extension");
  58     }
  59   }
  60
  61   Counters* counters = isolate->counters();
  62   v8::Local<v8::Object> result = v8::Object::New(args.GetIsolate());
  63
  64 #define ADD_COUNTER(name, caption)                                            \
  65   AddCounter(args.GetIsolate(), result, counters->name(), #name);
  66
  67   STATS_COUNTER_LIST_1(ADD_COUNTER)
  68   STATS_COUNTER_LIST_2(ADD_COUNTER)
  69 #undef ADD_COUNTER
  70 #define ADD_COUNTER(name)                                                      \
  71   AddCounter(args.GetIsolate(), result, counters->count_of_##name(),           \
  72              "count_of_" #name);                                               \
  73   AddCounter(args.GetIsolate(), result, counters->size_of_##name(),            \
  74              "size_of_" #name);
  75
  76   INSTANCE_TYPE_LIST(ADD_COUNTER)
  77 #undef ADD_COUNTER
  78 #define ADD_COUNTER(name)                                                      \
  79   AddCounter(args.GetIsolate(), result, counters->count_of_CODE_TYPE_##name(), \
  80              "count_of_CODE_TYPE_" #name);                                     \
  81   AddCounter(args.GetIsolate(), result, counters->size_of_CODE_TYPE_##name(),  \
  82              "size_of_CODE_TYPE_" #name);
  83
  84   CODE_KIND_LIST(ADD_COUNTER)
  85 #undef ADD_COUNTER
  86 #define ADD_COUNTER(name)                                                      \
  87   AddCounter(args.GetIsolate(), result,                                        \
  88              counters->count_of_FIXED_ARRAY_##name(),                          \
  89              "count_of_FIXED_ARRAY_" #name);                                   \
  90   AddCounter(args.GetIsolate(), result,                                        \
  91              counters->size_of_FIXED_ARRAY_##name(),                           \
  92              "size_of_FIXED_ARRAY_" #name);
  93
  94   FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(ADD_COUNTER)
  95 #undef ADD_COUNTER
  96
  97   AddNumber(args.GetIsolate(), result, isolate->memory_allocator()->Size(),
  98             "total_committed_bytes");
  99   AddNumber(args.GetIsolate(), result, heap->new_space()->Size(),
 100             "new_space_live_bytes");
 101   AddNumber(args.GetIsolate(), result, heap->new_space()->Available(),
 102             "new_space_available_bytes");
 103   AddNumber(args.GetIsolate(), result, heap->new_space()->CommittedMemory(),
 104             "new_space_commited_bytes");
 105   AddNumber(args.GetIsolate(), result, heap->old_pointer_space()->Size(),
 106             "old_pointer_space_live_bytes");
 107   AddNumber(args.GetIsolate(), result, heap->old_pointer_space()->Available(),
 108             "old_pointer_space_available_bytes");
 109   AddNumber(args.GetIsolate(), result,
 110             heap->old_pointer_space()->CommittedMemory(),
 111             "old_pointer_space_commited_bytes");
 112   AddNumber(args.GetIsolate(), result, heap->old_data_space()->Size(),
 113             "old_data_space_live_bytes");
 114   AddNumber(args.GetIsolate(), result, heap->old_data_space()->Available(),
 115             "old_data_space_available_bytes");
 116   AddNumber(args.GetIsolate(), result,
 117             heap->old_data_space()->CommittedMemory(),
 118             "old_data_space_commited_bytes");
 119   AddNumber(args.GetIsolate(), result, heap->code_space()->Size(),
 120             "code_space_live_bytes");
 121   AddNumber(args.GetIsolate(), result, heap->code_space()->Available(),
 122             "code_space_available_bytes");
 123   AddNumber(args.GetIsolate(), result, heap->code_space()->CommittedMemory(),
 124             "code_space_commited_bytes");
 125   AddNumber(args.GetIsolate(), result, heap->cell_space()->Size(),
 126             "cell_space_live_bytes");
 127   AddNumber(args.GetIsolate(), result, heap->cell_space()->Available(),
 128             "cell_space_available_bytes");
 129   AddNumber(args.GetIsolate(), result, heap->cell_space()->CommittedMemory(),
 130             "cell_space_commited_bytes");
 131   AddNumber(args.GetIsolate(), result, heap->property_cell_space()->Size(),
 132             "property_cell_space_live_bytes");
 133   AddNumber(args.GetIsolate(), result, heap->property_cell_space()->Available(),
 134             "property_cell_space_available_bytes");
 135   AddNumber(args.GetIsolate(), result,
 136             heap->property_cell_space()->CommittedMemory(),
 137             "property_cell_space_commited_bytes");
 138   AddNumber(args.GetIsolate(), result, heap->lo_space()->Size(),
 139             "lo_space_live_bytes");
 140   AddNumber(args.GetIsolate(), result, heap->lo_space()->Available(),
 141             "lo_space_available_bytes");
 142   AddNumber(args.GetIsolate(), result, heap->lo_space()->CommittedMemory(),
 143             "lo_space_commited_bytes");
 144   AddNumber64(args.GetIsolate(), result,
 145               heap->amount_of_external_allocated_memory(),
 146               "amount_of_external_allocated_memory");
 147   args.GetReturnValue().Set(result);
 148 }
 149
 150 } }  // namespace v8::internal