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
72
73
74
75
76
77
78
79
80
81
82
83
84

// 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.


#[doc(hidden)]
#[derive(Debug)]
pub struct CommonReceiveOnly<RP: ReceivePoll>
{
	receive_queue: ReceiveQueue,
	
	receive_poll: RefCell<RP>,
	
	frames_received: FramesCount,
	
	receive_queue_identifier: QueueIdentifier,
}

impl<RP: ReceivePoll> Supports for CommonReceiveOnly<RP>
{
	const SupportsReceive: bool = true;
	
	const SupportsTransmit: bool = false;
}

impl<RP: ReceivePoll> ReceiveOrTransmitOrBoth for CommonReceiveOnly<RP>
{
	type RP = RP;
	
	type TS = ();
}

impl<RP: ReceivePoll> Receives<Self> for CommonReceiveOnly<RP>
{
	#[inline(always)]
	fn receive(&self) -> &Self
	{
		self
	}
}

impl<RP: ReceivePoll> CommonReceiveOnly<RP>
{
	#[inline(always)]
	pub(crate) const fn new(receive_queue: ReceiveQueue, receive_poll: RP, receive_queue_identifier: QueueIdentifier) -> Self
	{
		Self
		{
			receive_queue,
			receive_poll: RefCell::new(receive_poll),
			frames_received: FramesCount::new(),
			receive_queue_identifier,
		}
	}
	
	#[inline(always)]
	pub(crate) fn receive_queue(&self) -> &ReceiveQueue
	{
		&self.receive_queue
	}
	
	#[inline(always)]
	pub(crate) fn frames_received(&self) -> u64
	{
		self.frames_received.current()
	}
	
	#[inline(always)]
	pub(crate) fn increase_frames_received(&self, number_of_frames: NonZeroU32)
	{
		self.frames_received.increment(number_of_frames)
	}
	
	#[inline(always)]
	pub(crate) fn receive_poll(&self)
	{
		self.receive_poll.borrow_mut().poll()
	}
	
	#[inline(always)]
	pub(crate) fn remove_receive_map_queue_identifier(&self, redirect_map_and_attached_program: &RedirectMapAndAttachedProgram) -> Result<bool, Errno>
	{
		redirect_map_and_attached_program.remove_receive_map_receive_queue_identifier(self.receive_queue_identifier)
	}
}