42 lines
947 B
C
42 lines
947 B
C
|
// Copyright (c) 2023, AgiBot Inc.
|
||
|
|
// All rights reserved.
|
||
|
|
|
||
|
|
#pragma once
|
||
|
|
|
||
|
|
#include <concepts>
|
||
|
|
#include <functional>
|
||
|
|
#include <type_traits>
|
||
|
|
|
||
|
|
namespace aimrt::common::util {
|
||
|
|
// The following source code is from trpc-cpp.
|
||
|
|
// Copied and modified from
|
||
|
|
// https://github.com/trpc-group/trpc-cpp/blob/v1.2.0/trpc/util/deferred.h
|
||
|
|
|
||
|
|
class Deferred {
|
||
|
|
public:
|
||
|
|
Deferred() = default;
|
||
|
|
|
||
|
|
template <class F>
|
||
|
|
requires(!std::same_as<std::decay_t<F>, Deferred>) // Avoid hide Deferred(Deferred&&)
|
||
|
|
explicit Deferred(F&& f) : action_(std::forward<F>(f)) {}
|
||
|
|
|
||
|
|
Deferred(Deferred&&) noexcept = default;
|
||
|
|
Deferred& operator=(Deferred&&) noexcept = default;
|
||
|
|
|
||
|
|
~Deferred() {
|
||
|
|
if (action_) {
|
||
|
|
action_();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
explicit operator bool() const noexcept { return !!action_; }
|
||
|
|
|
||
|
|
void Dismiss() noexcept { action_ = nullptr; }
|
||
|
|
|
||
|
|
private:
|
||
|
|
std::function<void()> action_;
|
||
|
|
};
|
||
|
|
// End of the source code from trpc-cpp.
|
||
|
|
|
||
|
|
} // namespace aimrt::common::util
|