linux-support 0.0.25

Comprehensive Linux support for namespaces, cgroups, processes, scheduling, parsing /proc, parsing /sys, signals, hyper threads, CPUS, NUMA nodes, unusual file descriptors, PCI devices and much, much more
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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.


#[repr(C)]
pub(crate) struct ethtool_pauseparam
{
	/// Either `ETHTOOL_GPAUSEPARAM` or `ETHTOOL_SPAUSEPARAM`.
	cmd: u32,
	
	autoneg: u32,
	
	rx_pause: u32,
	
	tx_pause: u32,
}

impl EthtoolCommand for ethtool_pauseparam
{
	#[inline(always)]
	fn command(&self) -> u32
	{
		self.cmd
	}
}

impl ethtool_pauseparam
{
	#[inline(always)]
	pub(crate) fn get() -> Self
	{
		Self
		{
			cmd: ETHTOOL_GPAUSEPARAM,
			autoneg: 0,
			rx_pause: 0,
			tx_pause: 0
		}
	}
	
	#[inline(always)]
	pub(crate) fn set(pause_configuration: PauseConfiguration) -> Self
	{
		let (autoneg, rx_pause, tx_pause) = pause_configuration.to_u32_booleans();
		Self
		{
			cmd: ETHTOOL_SPAUSEPARAM,
			autoneg,
			rx_pause,
			tx_pause
		}
	}
	
	#[inline(always)]
	pub(crate) fn as_pause_configuration(&self) -> Result<PauseConfiguration, InvalidCombinationOfPauseSettingsError>
	{
		use self::PauseConfiguration::*;
		
		match (self.autoneg, self.rx_pause, self.tx_pause)
		{
			(0, 0, 0) => Ok(Disabled),
			(1, 0, 0) => Ok(AutoNegotiated),
			(0, 1, 0) => Ok(TransmitOnly),
			(0, 0, 1) => Ok(ReceiveOnly),
			(0, 1, 1) => Ok(TransmitAndReceive),
			_ => Err(InvalidCombinationOfPauseSettingsError),
		}
	}
}