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// This file is part of linux-support. It is subject to the license terms in the COPYRIGHT file found in the top-level directory of this distribution and at https://raw.githubusercontent.com/lemonrock/linux-support/master/COPYRIGHT. No part of linux-support, including this file, may be copied, modified, propagated, or distributed except according to the terms contained in the COPYRIGHT file.
// Copyright © 2020 The developers of linux-support. See the COPYRIGHT file in the top-level directory of this distribution and at https://raw.githubusercontent.com/lemonrock/linux-support/master/COPYRIGHT.
/// Defaults to `BlocksForever`.
#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub enum BlockingDuration
{
/// Blocking.
BlocksForever,
/// Blocking but times out.
BlocksButTimesOut
{
/// Time out after this number of microseconds.
microseconds: NonZeroU64,
},
}
impl Default for BlockingDuration
{
#[inline(always)]
fn default() -> Self
{
BlockingDuration::BlocksForever
}
}
impl BlockingDuration
{
#[inline(always)]
pub(crate) fn set_time_out_assuming_never_set_before(&self, socket_file_descriptor: &SocketFileDescriptor<impl SocketData>, option_name: i32)
{
if let BlockingDuration::BlocksButTimesOut { microseconds } = self
{
const MicrosecondsInASecond: i64 = 1_000_000;
let microseconds: i64 = (*microseconds).get().try_into().expect("Too large");
let value = timeval
{
tv_sec: microseconds / MicrosecondsInASecond,
tv_usec: microseconds % MicrosecondsInASecond,
};
socket_file_descriptor.set_socket_option(SOL_SOCKET, option_name, &value)
}
}
}