chrome/renderer/net_benchmarking_extension.cc

   1 // Copyright (c) 2013 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 #include "chrome/renderer/net_benchmarking_extension.h"
   6
   7 #include "chrome/common/benchmarking_messages.h"
   8 #include "content/public/renderer/render_thread.h"
   9 #include "third_party/WebKit/public/web/WebCache.h"
  10 #include "v8/include/v8.h"
  11
  12 using blink::WebCache;
  13
  14 const char kNetBenchmarkingExtensionName[] = "v8/NetBenchmarking";
  15
  16 namespace extensions_v8 {
  17
  18 class NetBenchmarkingWrapper : public v8::Extension {
  19  public:
  20   NetBenchmarkingWrapper() :
  21       v8::Extension(kNetBenchmarkingExtensionName,
  22         "if (typeof(chrome) == 'undefined') {"
  23         "  chrome = {};"
  24         "};"
  25         "if (typeof(chrome.benchmarking) == 'undefined') {"
  26         "  chrome.benchmarking = {};"
  27         "};"
  28         "chrome.benchmarking.clearCache = function() {"
  29         "  native function ClearCache();"
  30         "  ClearCache();"
  31         "};"
  32         "chrome.benchmarking.clearHostResolverCache = function() {"
  33         "  native function ClearHostResolverCache();"
  34         "  ClearHostResolverCache();"
  35         "};"
  36         "chrome.benchmarking.clearPredictorCache = function() {"
  37         "  native function ClearPredictorCache();"
  38         "  ClearPredictorCache();"
  39         "};"
  40         "chrome.benchmarking.closeConnections = function() {"
  41         "  native function CloseConnections();"
  42         "  CloseConnections();"
  43         "};"
  44         ) {}
  45
  46   v8::Handle<v8::FunctionTemplate> GetNativeFunctionTemplate(
  47       v8::Isolate* isolate,
  48       v8::Handle<v8::String> name) override {
  49     if (name->Equals(v8::String::NewFromUtf8(isolate, "ClearCache"))) {
  50       return v8::FunctionTemplate::New(isolate, ClearCache);
  51     } else if (name->Equals(v8::String::NewFromUtf8(
  52                    isolate, "ClearHostResolverCache"))) {
  53       return v8::FunctionTemplate::New(isolate, ClearHostResolverCache);
  54     } else if (name->Equals(
  55                    v8::String::NewFromUtf8(isolate, "ClearPredictorCache"))) {
  56       return v8::FunctionTemplate::New(isolate, ClearPredictorCache);
  57     } else if (name->Equals(
  58                    v8::String::NewFromUtf8(isolate, "CloseConnections"))) {
  59       return v8::FunctionTemplate::New(isolate, CloseConnections);
  60     }
  61
  62     return v8::Handle<v8::FunctionTemplate>();
  63   }
  64
  65   static void ClearCache(const v8::FunctionCallbackInfo<v8::Value>& args) {
  66     int rv;
  67     content::RenderThread::Get()->Send(new ChromeViewHostMsg_ClearCache(&rv));
  68     WebCache::clear();
  69   }
  70
  71   static void ClearHostResolverCache(
  72       const v8::FunctionCallbackInfo<v8::Value>& args) {
  73     content::RenderThread::Get()->Send(
  74         new ChromeViewHostMsg_ClearHostResolverCache());
  75   }
  76
  77   static void ClearPredictorCache(
  78       const v8::FunctionCallbackInfo<v8::Value>& args) {
  79     content::RenderThread::Get()->Send(
  80         new ChromeViewHostMsg_ClearPredictorCache());
  81   }
  82
  83   static void CloseConnections(
  84       const v8::FunctionCallbackInfo<v8::Value>& args) {
  85     content::RenderThread::Get()->Send(
  86         new ChromeViewHostMsg_CloseCurrentConnections());
  87   }
  88 };
  89
  90 v8::Extension* NetBenchmarkingExtension::Get() {
  91   return new NetBenchmarkingWrapper();
  92 }
  93
  94 }  // namespace extensions_v8