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.


/// Represents a bus device address (eg a PCI address separated by `:`).
#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
#[derive(Deserialize, Serialize)]
#[repr(transparent)]
pub struct BusDeviceAddress(ObjectName32);

impl Display for BusDeviceAddress
{
	#[inline(always)]
	fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result
	{
		write!(f, "{}", self.0)
	}
}

impl From<ObjectName32> for BusDeviceAddress
{
	#[inline(always)]
	fn from(value: ObjectName32) -> Self
	{
		Self(value)
	}
}

impl Into<ObjectName32> for BusDeviceAddress
{
	#[inline(always)]
	fn into(self) -> ObjectName32
	{
		self.0
	}
}

impl<'a> Into<[c_char; 32]> for &'a BusDeviceAddress
{
	#[inline(always)]
	fn into(self) -> [c_char; 32]
	{
		self.to_object_name()
	}
}

impl Into<[c_char; 32]> for BusDeviceAddress
{
	#[inline(always)]
	fn into(self) -> [c_char; 32]
	{
		self.0.into_object_name()
	}
}

impl Deref for BusDeviceAddress
{
	type Target = ObjectName32;
	
	#[inline(always)]
	fn deref(&self) -> &Self::Target
	{
		&self.0
	}
}

impl<'a> TryFrom<&'a NetworkInterfaceName> for BusDeviceAddress
{
	type Error = NetworkInterfaceNameToSomethingError<ObjectNameFromBytesError>;
	
	#[inline(always)]
	fn try_from(value: &'a NetworkInterfaceName) -> Result<Self, Self::Error>
	{
		Self::try_from(value.clone())
	}
}

impl TryFrom<NetworkInterfaceName> for BusDeviceAddress
{
	type Error = NetworkInterfaceNameToSomethingError<ObjectNameFromBytesError>;
	
	#[inline(always)]
	fn try_from(value: NetworkInterfaceName) -> Result<Self, Self::Error>
	{
		if let Some(Some(bus_device_address)) = Self::try_from_network_interface_name(value)?
		{
			Ok(bus_device_address)
		}
		else
		{
			Err(NetworkInterfaceNameToSomethingError::DoesNotExistAsAnInterface)
		}
	}
}

impl BusDeviceAddress
{
	/// Tries to get the bus device address.
	#[inline(always)]
	pub fn try_from_network_interface_name(value: NetworkInterfaceName) -> Result<Option<Option<Self>>, NetworkDeviceInputOutputControlError<ObjectNameFromBytesError>>
	{
		let driver_and_device_information = NetworkDeviceInputOutputControl::new(Cow::Owned(value))?.driver_and_device_information()?;
		let inner = match driver_and_device_information
		{
			Some(Some(driver_and_device_information)) => match driver_and_device_information.device_bus_device_address
			{
				Some(device_bus_device_address) => Some(Some(device_bus_device_address)),
				
				None => Some(None),
			},
			
			Some(None) => Some(None),
			
			None => None,
		};
		
		Ok(inner)
	}
}