gin/public/v8_platform.h

   1 // Copyright 2014 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 #ifndef GIN_PUBLIC_V8_PLATFORM_H_
   6 #define GIN_PUBLIC_V8_PLATFORM_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/compiler_specific.h"
  10 #include "base/lazy_instance.h"
  11 #include "gin/gin_export.h"
  12 #include "v8/include/v8-platform.h"
  13
  14 namespace gin {
  15
  16 // A v8::Platform implementation to use with gin.
  17 class GIN_EXPORT V8Platform : public NON_EXPORTED_BASE(v8::Platform) {
  18  public:
  19   static V8Platform* Get();
  20
  21   // v8::Platform implementation.
  22   void CallOnBackgroundThread(
  23       v8::Task* task,
  24       v8::Platform::ExpectedRuntime expected_runtime) override;
  25   void CallOnForegroundThread(v8::Isolate* isolate, v8::Task* task) override;
  26   void CallDelayedOnForegroundThread(v8::Isolate* isolate,
  27                                      v8::Task* task,
  28                                      double delay_in_seconds) override;
  29   void CallIdleOnForegroundThread(v8::Isolate* isolate,
  30                                   v8::IdleTask* task) override;
  31   bool IdleTasksEnabled(v8::Isolate* isolate) override;
  32   double MonotonicallyIncreasingTime() override;
  33
  34  private:
  35   friend struct base::DefaultLazyInstanceTraits<V8Platform>;
  36
  37   V8Platform();
  38   ~V8Platform() override;
  39
  40   DISALLOW_COPY_AND_ASSIGN(V8Platform);
  41 };
  42
  43 }  // namespace gin
  44
  45 #endif  // GIN_PUBLIC_V8_PLATFORM_H_