30 lines
868 B
C++
30 lines
868 B
C++
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef BASE_CALLBACK_FORWARD_H_
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#define BASE_CALLBACK_FORWARD_H_
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namespace base {
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namespace internal {
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// CopyMode is used to control the copyablity of a Callback.
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// MoveOnly indicates the Callback is not copyable but movable, and Copyable
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// indicates it is copyable and movable.
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enum class CopyMode {
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MoveOnly, Copyable,
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};
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} // namespace internal
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template <typename Signature,
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internal::CopyMode copy_mode = internal::CopyMode::Copyable>
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class Callback;
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// Syntactic sugar to make Callback<void()> easier to declare since it
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// will be used in a lot of APIs with delayed execution.
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using Closure = Callback<void()>;
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} // namespace base
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#endif // BASE_CALLBACK_FORWARD_H_
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