tg_windows5.12.6/Telegram/lib_base/base/call_delayed.h

// This file is part of Desktop App Toolkit,
// a set of libraries for developing nice desktop applications.
//
// For license and copyright information please follow this link:
// https://github.com/desktop-app/legal/blob/master/LEGAL
//
#pragma once

namespace base {

void call_delayed(crl::time delay, FnMut<void()> &&callable);

template <
	typename Guard,
	typename Callable,
	typename GuardTraits = crl::guard_traits<std::decay_t<Guard>>,
	typename = std::enable_if_t<
	sizeof(GuardTraits) != crl::details::dependent_zero<GuardTraits>>>
inline void call_delayed(
		crl::time delay,
		Guard &&object,
		Callable &&callable) {
	return call_delayed(delay, crl::guard(
		std::forward<Guard>(object),
		std::forward<Callable>(callable)));
}

template <typename Guard, typename Callable>
[[nodiscard]] inline auto fn_delayed(
		crl::time delay,
		Guard &&object,
		Callable &&callable) {
	auto guarded = crl::guard(
		std::forward<Guard>(object),
		std::forward<Callable>(callable));
	return [saved = std::move(guarded), delay] {
		auto copy = saved;
		base::call_delayed(delay, std::move(copy));
	};
}

} // namespace base