contur::Priority Struct Reference

Composite priority descriptor for a process. More...

#include <priority.h>

Public Member Functions
constexpr	Priority () noexcept=default
	Default-constructs a Normal-priority descriptor.
constexpr	Priority (PriorityLevel level) noexcept
	Constructs a priority with the given base level. Effective is initialized to match base; nice defaults to 0.
constexpr	Priority (PriorityLevel base, PriorityLevel effective, std::int32_t nice) noexcept
	Constructs a priority with base, effective, and nice values.
constexpr bool	operator== (const Priority &other) const noexcept
	Compares two Priority descriptors for equality.
constexpr bool	operator!= (const Priority &other) const noexcept
	Compares two Priority descriptors for inequality.
constexpr bool	isHigherThan (const Priority &other) const noexcept
	Returns true if this priority is higher (numerically lower) than other, based on effective level. Tie-broken by nice value (lower nice = higher prio).

Static Public Member Functions
static constexpr std::int32_t	clampNice (std::int32_t value) noexcept
	Clamps a nice value to the valid range [NICE_MIN, NICE_MAX].

Public Attributes
PriorityLevel	base = PriorityLevel::Normal
	Static priority assigned at creation.
PriorityLevel	effective = PriorityLevel::Normal
	Dynamic priority used by scheduler.
std::int32_t	nice = NICE_DEFAULT
	Fine-grained adjustment (-20..+19).

Detailed Description

Composite priority descriptor for a process.

• base — assigned at creation, does not change during normal execution.
• effective — adjusted dynamically by the scheduler (e.g., starvation prevention, I/O boost, priority inheritance).
• nice — Unix-style fine-grained adjustment (range: NICE_MIN..NICE_MAX).

Definition at line 45 of file priority.h.

Constructor & Destructor Documentation

Priority() [1/3]

contur::Priority::Priority ( )

constexprdefaultnoexcept

Default-constructs a Normal-priority descriptor.

Priority() [2/3]

contur::Priority::Priority ( PriorityLevel level )

inlineexplicitconstexprnoexcept

Constructs a priority with the given base level. Effective is initialized to match base; nice defaults to 0.

Definition at line 56 of file priority.h.

Priority() [3/3]

contur::Priority::Priority ( PriorityLevel base, PriorityLevel effective, std::int32_t nice )

inlineconstexprnoexcept

Constructs a priority with base, effective, and nice values.

Definition at line 63 of file priority.h.

Member Function Documentation

clampNice()

constexpr std::int32_t contur::Priority::clampNice ( std::int32_t value )

inlinestaticnodiscardconstexprnoexcept

Clamps a nice value to the valid range [NICE_MIN, NICE_MAX].

Definition at line 93 of file priority.h.

isHigherThan()

bool contur::Priority::isHigherThan ( const Priority & other ) const

inlinenodiscardconstexprnoexcept

Returns true if this priority is higher (numerically lower) than other, based on effective level. Tie-broken by nice value (lower nice = higher prio).

Definition at line 83 of file priority.h.

operator!=()

bool contur::Priority::operator!= ( const Priority & other ) const

inlinenodiscardconstexprnoexcept

Compares two Priority descriptors for inequality.

Definition at line 76 of file priority.h.

operator==()

bool contur::Priority::operator== ( const Priority & other ) const

inlinenodiscardconstexprnoexcept

Compares two Priority descriptors for equality.

Definition at line 70 of file priority.h.

Member Data Documentation

base

PriorityLevel contur::Priority::base = PriorityLevel::Normal

Static priority assigned at creation.

Definition at line 47 of file priority.h.

effective

PriorityLevel contur::Priority::effective = PriorityLevel::Normal

Dynamic priority used by scheduler.

Definition at line 48 of file priority.h.

nice

std::int32_t contur::Priority::nice = NICE_DEFAULT

Fine-grained adjustment (-20..+19).

Definition at line 49 of file priority.h.

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The documentation for this struct was generated from the following file:

• include/contur/process/priority.h