base/functional/callback_forward.h

   1 // Copyright 2011 The Chromium Authors
   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 BASE_FUNCTIONAL_CALLBACK_FORWARD_H_
   6 #define BASE_FUNCTIONAL_CALLBACK_FORWARD_H_
   7
   8 namespace base {
   9
  10 template <typename Signature>
  11 class OnceCallback;
  12
  13 template <typename Signature>
  14 class RepeatingCallback;
  15
  16 // Syntactic sugar to make OnceClosure<void()> and RepeatingClosure<void()>
  17 // easier to declare since they will be used in a lot of APIs with delayed
  18 // execution.
  19 using OnceClosure = OnceCallback<void()>;
  20 using RepeatingClosure = RepeatingCallback<void()>;
  21
  22 }  // namespace base
  23
  24 #endif  // BASE_FUNCTIONAL_CALLBACK_FORWARD_H_