tools/profiler/gecko/ProfilerIOInterposeObserver.h

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 #ifndef PROFILERIOINTERPOSEOBSERVER_H
   6 #define PROFILERIOINTERPOSEOBSERVER_H
   7
   8 #include "mozilla/IOInterposer.h"
   9 #include "nsISupportsImpl.h"
  10
  11 namespace mozilla {
  12
  13 /**
  14  * This class is the observer that calls into the profiler whenever
  15  * main thread I/O occurs.
  16  */
  17 class ProfilerIOInterposeObserver final : public IOInterposeObserver {
  18   NS_INLINE_DECL_THREADSAFE_REFCOUNTING(ProfilerIOInterposeObserver)
  19
  20  public:
  21   static ProfilerIOInterposeObserver& GetInstance();
  22
  23   virtual void Observe(Observation& aObservation) override;
  24
  25  private:
  26   ProfilerIOInterposeObserver() = default;
  27   virtual ~ProfilerIOInterposeObserver() {}
  28 };
  29
  30 }  // namespace mozilla
  31
  32 #endif  // PROFILERIOINTERPOSEOBSERVER_H