Add API functions to control Quantify, as well as expose these

functions to javascript. 


Review URL: http://codereview.chromium.org/40255

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@11291 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 113 insertions, 0 deletions

diff --git a/webkit/extensions/v8/profiler_extension.cc b/webkit/extensions/v8/profiler_extension.cc
new file mode 100644
index 0000000..e4c64d1
--- /dev/null
+++ b/webkit/extensions/v8/profiler_extension.cc
@@ -0,0 +1,89 @@
+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "config.h"
+#include "webkit/extensions/v8/profiler_extension.h"
+
+#include "base/profiler.h"
+
+namespace extensions_v8 {
+
+const char* kProfilerExtensionName = "v8/Profiler";
+
+class ProfilerWrapper : public v8::Extension {
+ public:
+  ProfilerWrapper() :
+      v8::Extension(kProfilerExtensionName,
+        "if (typeof(chromium) == 'undefined') {"
+        "  chromium = {};"
+        "}"
+        "chromium.Profiler = function() {"
+        "  native function ProfilerStart();"
+        "  native function ProfilerStop();"
+        "  native function ProfilerClearData();"
+        "  native function ProfilerSetThreadName();"
+        "  this.start = function() {"
+        "    ProfilerStart();"
+        "  };"
+        "  this.stop = function() {"
+        "    ProfilerStop();"
+        "  };"
+        "  this.clear = function() {"
+        "    ProfilerClearData();"
+        "  };"
+        "  this.setThreadName = function(name) {"
+        "    ProfilerSetThreadName(name);"
+        "  };"
+        "};") {}
+
+  virtual v8::Handle<v8::FunctionTemplate> GetNativeFunction(
+      v8::Handle<v8::String> name) {
+    if (name->Equals(v8::String::New("ProfilerStart"))) {
+      return v8::FunctionTemplate::New(ProfilerStart);
+    } else if (name->Equals(v8::String::New("ProfilerStop"))) {
+      return v8::FunctionTemplate::New(ProfilerStop);
+    } else if (name->Equals(v8::String::New("ProfilerClearData"))) {
+      return v8::FunctionTemplate::New(ProfilerClearData);
+    } else if (name->Equals(v8::String::New("ProfilerSetThreadName"))) {
+      return v8::FunctionTemplate::New(ProfilerSetThreadName);
+    }
+    return v8::Handle<v8::FunctionTemplate>();
+  }
+
+  static v8::Handle<v8::Value> ProfilerStart(
+      const v8::Arguments& args) {
+    base::Profiler::StartRecording();
+    return v8::Undefined();
+  }
+
+  static v8::Handle<v8::Value> ProfilerStop(
+      const v8::Arguments& args) {
+    base::Profiler::StopRecording();
+    return v8::Undefined();
+  }
+
+  static v8::Handle<v8::Value> ProfilerClearData(
+      const v8::Arguments& args) {
+    base::Profiler::ClearData();
+    return v8::Undefined();
+  }
+
+  static v8::Handle<v8::Value> ProfilerSetThreadName(
+      const v8::Arguments& args) {
+    if (args.Length() >= 1 && args[0]->IsString()) {
+      v8::Local<v8::String> inputString = args[0]->ToString();
+      char nameBuffer[256];
+      inputString->WriteAscii(nameBuffer, 0, sizeof(nameBuffer)-1);
+      base::Profiler::SetThreadName(nameBuffer);
+    }
+    return v8::Undefined();
+  }
+};
+
+v8::Extension* ProfilerExtension::Get() {
+  return new ProfilerWrapper();
+}
+
+}  // namespace extensions_v8
+
diff --git a/webkit/extensions/v8/profiler_extension.h b/webkit/extensions/v8/profiler_extension.h
new file mode 100644
index 0000000..8112da3
--- /dev/null
+++ b/webkit/extensions/v8/profiler_extension.h
@@ -0,0 +1,24 @@
+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Profiler is an extension to allow javascript access to the API for
+// an external profiler program (such as Quantify). The "External" part of the
+// name is to distinguish it from the built-in V8 Profiler.
+
+#ifndef WEBKIT_EXTENSIONS_V8_PROFILER_EXTENSION_H_
+#define WEBKIT_EXTENSIONS_V8_PROFILER_EXTENSION_H_
+
+#include "v8/include/v8.h"
+
+namespace extensions_v8 {
+
+class ProfilerExtension {
+ public:
+  static v8::Extension* Get();
+};
+
+}  // namespace extensions_v8
+
+#endif  // WEBKIT_EXTENSIONS_V8_PROFILER_EXTENSION_H_
+