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// This file is part of Gear.

// Copyright (C) 2021-2024 Gear Technologies Inc.
// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.

//! Module for Gear programs asynchronous waker.

use core::{
    ptr,
    task::{RawWaker, RawWakerVTable, Waker},
};

const VTABLE: RawWakerVTable = RawWakerVTable::new(clone_waker, wake, wake_by_ref, drop_waker);

pub(crate) fn empty() -> Waker {
    unsafe { Waker::from_raw(RawWaker::new(ptr::null(), &VTABLE)) }
}

unsafe fn clone_waker(ptr: *const ()) -> RawWaker {
    RawWaker::new(ptr, &VTABLE)
}
unsafe fn wake(_ptr: *const ()) {}
unsafe fn wake_by_ref(_ptr: *const ()) {}
unsafe fn drop_waker(_ptr: *const ()) {}