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| 1 // Copyright 2010 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are |
| 4 // met: |
| 5 // |
| 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided |
| 11 // with the distribution. |
| 12 // * Neither the name of Google Inc. nor the names of its |
| 13 // contributors may be used to endorse or promote products derived |
| 14 // from this software without specific prior written permission. |
| 15 // |
| 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 |
| 28 #include "statistics-extension.h" |
| 29 |
| 30 namespace v8 { |
| 31 namespace internal { |
| 32 |
| 33 const char* const StatisticsExtension::kSource = |
| 34 "native function getV8Statistics();"; |
| 35 |
| 36 |
| 37 v8::Handle<v8::FunctionTemplate> StatisticsExtension::GetNativeFunction( |
| 38 v8::Handle<v8::String> str) { |
| 39 ASSERT(strcmp(*v8::String::AsciiValue(str), "getV8Statistics") == 0); |
| 40 return v8::FunctionTemplate::New(StatisticsExtension::GetCounters); |
| 41 } |
| 42 |
| 43 |
| 44 v8::Handle<v8::Value> StatisticsExtension::GetCounters( |
| 45 const v8::Arguments& args) { |
| 46 Isolate* isolate = Isolate::Current(); |
| 47 Heap* heap = isolate->heap(); |
| 48 if (args.Length() > 0) { // GC if first argument evaluates to true. |
| 49 if (args[0]->IsBoolean() && args[0]->ToBoolean()->Value()) { |
| 50 heap->CollectAllGarbage(Heap::kNoGCFlags, "counters extension"); |
| 51 } |
| 52 } |
| 53 |
| 54 Counters* counters = isolate->counters(); |
| 55 v8::Local<v8::Object> result = v8::Object::New(); |
| 56 |
| 57 StatsCounter* counter = NULL; |
| 58 |
| 59 #define ADD_COUNTER(name, caption) \ |
| 60 counter = counters->name(); \ |
| 61 if (counter->Enabled()) \ |
| 62 result->Set(v8::String::New(#name), \ |
| 63 v8::Number::New(*counter->GetInternalPointer())); |
| 64 |
| 65 STATS_COUNTER_LIST_1(ADD_COUNTER) |
| 66 STATS_COUNTER_LIST_2(ADD_COUNTER) |
| 67 #undef ADD_COUNTER |
| 68 #define ADD_COUNTER(name) \ |
| 69 counter = counters->count_of_##name(); \ |
| 70 if (counter->Enabled()) \ |
| 71 result->Set(v8::String::New("count_of_" #name), \ |
| 72 v8::Number::New(*counter->GetInternalPointer())); \ |
| 73 counter = counters->size_of_##name(); \ |
| 74 if (counter->Enabled()) \ |
| 75 result->Set(v8::String::New("size_of_" #name), \ |
| 76 v8::Number::New(*counter->GetInternalPointer())); |
| 77 |
| 78 INSTANCE_TYPE_LIST(ADD_COUNTER) |
| 79 #undef ADD_COUNTER |
| 80 #define ADD_COUNTER(name) \ |
| 81 result->Set(v8::String::New("count_of_CODE_TYPE_" #name), \ |
| 82 v8::Number::New( \ |
| 83 *counters->count_of_CODE_TYPE_##name()->GetInternalPointer())); \ |
| 84 result->Set(v8::String::New("size_of_CODE_TYPE_" #name), \ |
| 85 v8::Number::New( \ |
| 86 *counters->size_of_CODE_TYPE_##name()->GetInternalPointer())); |
| 87 |
| 88 CODE_KIND_LIST(ADD_COUNTER) |
| 89 #undef ADD_COUNTER |
| 90 |
| 91 return result; |
| 92 } |
| 93 |
| 94 |
| 95 void StatisticsExtension::Register() { |
| 96 static StatisticsExtension statistics_extension; |
| 97 static v8::DeclareExtension declaration(&statistics_extension); |
| 98 } |
| 99 |
| 100 } } // namespace v8::internal |
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