contur::Scheduler Class Reference

Scheduler host that manages process queues and policy decisions. More...

#include <scheduler.h>

Inheritance diagram for contur::Scheduler:

Collaboration diagram for contur::Scheduler:

Public Member Functions
	Scheduler (std::unique_ptr< ISchedulingPolicy > policy)
	Constructs scheduler with initial policy.
	~Scheduler () override
	Scheduler (const Scheduler &)=delete
Scheduler &	operator= (const Scheduler &)=delete
	Scheduler (Scheduler &&) noexcept
Scheduler &	operator= (Scheduler &&) noexcept
Result< void >	enqueue (PCB &pcb, Tick currentTick) override
	Enqueues process into ready queue.
Result< void >	dequeue (ProcessId pid) override
	Removes process from scheduler tracking.
Result< ProcessId >	selectNext (const IClock &clock) override
	Selects next process according to active policy.
Result< void >	blockRunning (Tick currentTick) override
	Moves running process to blocked state.
Result< void >	unblock (ProcessId pid, Tick currentTick) override
	Moves blocked process back to ready queue.
Result< void >	terminate (ProcessId pid, Tick currentTick) override
	Terminates process and removes it from scheduler state.
std::vector< ProcessId >	getQueueSnapshot () const override
	Snapshot of ready queue process IDs.
std::vector< ProcessId >	getBlockedSnapshot () const override
	Snapshot of blocked queue process IDs.
ProcessId	runningProcess () const noexcept override
	Currently running process ID or INVALID_PID.
Result< void >	setPolicy (std::unique_ptr< ISchedulingPolicy > policy) override
	Replaces the active scheduling policy.
std::string_view	policyName () const noexcept
	Returns active policy name.
Public Member Functions inherited from contur::IScheduler
virtual	~IScheduler ()=default

Private Attributes
std::unique_ptr< Impl >	impl_

Detailed Description

Scheduler host that manages process queues and policy decisions.

Scheduler owns queue state and delegates ordering/preemption logic to the active ISchedulingPolicy implementation.

Definition at line 16 of file scheduler.h.

Constructor & Destructor Documentation

Scheduler() [1/3]

contur::Scheduler::Scheduler ( std::unique_ptr< ISchedulingPolicy > policy )

explicit

Constructs scheduler with initial policy.

Parameters

policy

Non-null scheduling policy implementation.

~Scheduler()

contur::Scheduler::~Scheduler ( )

override

Scheduler() [2/3]

contur::Scheduler::Scheduler ( const Scheduler & )

delete

Scheduler() [3/3]

contur::Scheduler::Scheduler ( Scheduler && )

noexcept

Member Function Documentation

blockRunning()

Result< void > contur::Scheduler::blockRunning ( Tick currentTick )

nodiscardoverridevirtual

Moves running process to blocked state.

Implements contur::IScheduler.

dequeue()

Result< void > contur::Scheduler::dequeue ( ProcessId pid )

nodiscardoverridevirtual

Removes process from scheduler tracking.

Implements contur::IScheduler.

enqueue()

Result< void > contur::Scheduler::enqueue ( PCB & pcb, Tick currentTick )

nodiscardoverridevirtual

Enqueues process into ready queue.

Implements contur::IScheduler.

getBlockedSnapshot()

std::vector< ProcessId > contur::Scheduler::getBlockedSnapshot ( ) const

nodiscardoverridevirtual

Snapshot of blocked queue process IDs.

Implements contur::IScheduler.

getQueueSnapshot()

std::vector< ProcessId > contur::Scheduler::getQueueSnapshot ( ) const

nodiscardoverridevirtual

Snapshot of ready queue process IDs.

Implements contur::IScheduler.

operator=() [1/2]

Scheduler & contur::Scheduler::operator= ( const Scheduler & )

delete

operator=() [2/2]

Scheduler & contur::Scheduler::operator= ( Scheduler && )

noexcept

policyName()

std::string_view contur::Scheduler::policyName ( ) const

nodiscardnoexcept

Returns active policy name.

runningProcess()

ProcessId contur::Scheduler::runningProcess ( ) const

nodiscardoverridevirtualnoexcept

Currently running process ID or INVALID_PID.

Implements contur::IScheduler.

selectNext()

Result< ProcessId > contur::Scheduler::selectNext ( const IClock & clock )

nodiscardoverridevirtual

Selects next process according to active policy.

Implements contur::IScheduler.

setPolicy()

Result< void > contur::Scheduler::setPolicy ( std::unique_ptr< ISchedulingPolicy > policy )

nodiscardoverridevirtual

Replaces the active scheduling policy.

Implements contur::IScheduler.

terminate()

Result< void > contur::Scheduler::terminate ( ProcessId pid, Tick currentTick )

nodiscardoverridevirtual

Terminates process and removes it from scheduler state.

Implements contur::IScheduler.

unblock()

Result< void > contur::Scheduler::unblock ( ProcessId pid, Tick currentTick )

nodiscardoverridevirtual

Moves blocked process back to ready queue.

Implements contur::IScheduler.

Member Data Documentation

impl_

std::unique_ptr<Impl> contur::Scheduler::impl_

private

Definition at line 64 of file scheduler.h.

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

• include/contur/scheduling/scheduler.h