blob: fcd7c85a32a16b79bcd309abd13f6f2604570bbe (
plain)
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
85
86
|
/**
* \file
* \brief ThreadListNode class header
*
* \author Copyright (C) 2015 Kamil Szczygiel http://www.distortec.com http://www.freddiechopin.info
*
* \par License
* This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of the MPL was not
* distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#ifndef INCLUDE_DISTORTOS_INTERNAL_SCHEDULER_THREADLISTNODE_HPP_
#define INCLUDE_DISTORTOS_INTERNAL_SCHEDULER_THREADLISTNODE_HPP_
#include "estd/IntrusiveList.hpp"
namespace distortos
{
namespace internal
{
/**
* \brief ThreadListNode class is a base for ThreadControlBlock that provides nodes for intrusive lists
*
* This class is needed to break circular dependency - MutexList is contained in ThreadControlBlock and ThreadList is
* contained in MutexControlBlock.
*/
class ThreadListNode
{
public:
/**
* \brief ThreadListNode's constructor
*
* \param [in] priority is the thread's priority, 0 - lowest, UINT8_MAX - highest
*/
constexpr ThreadListNode(const uint8_t priority) :
threadListNode{},
threadGroupNode{},
priority_{priority},
boostedPriority_{}
{
}
/**
* \return effective priority of thread
*/
uint8_t getEffectivePriority() const
{
return std::max(priority_, boostedPriority_);
}
/**
* \return priority of thread
*/
uint8_t getPriority() const
{
return priority_;
}
/// node for intrusive list in thread lists
estd::IntrusiveListNode threadListNode;
/// node for intrusive list in thread group
estd::IntrusiveListNode threadGroupNode;
protected:
/// thread's priority, 0 - lowest, UINT8_MAX - highest
uint8_t priority_;
/// thread's boosted priority, 0 - no boosting
uint8_t boostedPriority_;
};
} // namespace internal
} // namespace distortos
#endif // INCLUDE_DISTORTOS_INTERNAL_SCHEDULER_THREADLISTNODE_HPP_
|
