pezkuwi-telemetry/backend/common/src/ws_client/on_close.rs

// Source code for the Substrate Telemetry Server.
// Copyright (C) 2021 Parity Technologies (UK) Ltd.
//
// 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/>.

use tokio::sync::broadcast;

/// A small helper to fire the "close" channel when it's dropped.
pub struct OnClose(pub broadcast::Sender<()>);

impl Drop for OnClose {
    fn drop(&mut self) {
        let _ = self.0.send(());
    }
}