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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71

// 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.


/// Is not permitted to be empty.
#[repr(transparent)]
pub struct StructuredDataName(ArrayVec<PrintableAsciiCharacter, 32>);

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

impl StructuredDataName
{
	/// ***SLOW***.
	#[inline(always)]
	fn private(name: &[u8], private_enterprise_number: &PrivateEnterpriseNumber) -> Result<Self, PrintableAsciiCharacterPushError>
	{
		let mut inner = ArrayVec::new();
		
		Self::push_raw_slice(name, &mut inner)?;
		
		PrintableAsciiCharacter(b'@').push_into_array_vec(&mut inner)?;
		
		let a = private_enterprise_number.private_enterprise_number.unpadded_decimal();
		Self::push_raw_slice(&a[..], &mut inner)?;
		
		Ok(Self(inner))
	}
	
	/// ***SLOW***.
	#[inline(always)]
	fn iana_registered(name: &[u8]) -> Self
	{
		Self::name(name).expect("IANA names should not be invalid")
	}
	
	/// ***SLOW***.
	#[inline(always)]
	fn name(name: &[u8]) -> Result<Self, PrintableAsciiCharacterPushError>
	{
		let mut inner = ArrayVec::new();
		Self::push_raw_slice(name, &mut inner)?;
		Ok(Self(inner))
	}
	
	/// ***SLOW***.
	#[inline(always)]
	fn push_raw_slice(raw_slice: &[u8], inner: &mut ArrayVec<PrintableAsciiCharacter, 32>) -> Result<(), PrintableAsciiCharacterPushError>
	{
		lazy_static!
		{
    		static ref Denied: HashSet<u8> = fast_secure_hash_set!
			{
				b'=',
				b']',
				b'"',
			};
    	}
		
		PrintableAsciiCharacter::push_raw_slice_into_array_vec_with_additional_restrictions(raw_slice, inner, &Denied)?;
		Ok(())
	}
}