#include <timerfd-syscalls.h>

Inheritance diagram for TimerFd:

Collaboration diagram for TimerFd:

Public Member Functions
	TimerFd (int clock)

int	readToUser (void *buffer, size_t count, bool canBlock)

int	readWithCopy (size_t count, bool canBlock, PosixDescriptorReadCopy copy, void *context)

ReadyMask	queryReady ()

ReadinessGenerations	readinessGenerations () override

MUST_USE_RESULT bool	addDescriptorOwner ()

void	removeDescriptorOwner ()

Public Member Functions inherited from ReadinessSource
MUST_USE_RESULT bool	subscribeReadiness (ReadyMask interest, const SharedPointer< ReadinessObserver > &observer, ReadinessSubscription &subscription)

Private Member Functions
	TimerFd (const TimerFd &)=delete

TimerFd &	operator= (const TimerFd &)=delete

bool	readable () const

Time::Timestamp	now (const PosixClockSnapshot &clock) const

void	update (const PosixClockSnapshot &clock)

uint64_t	forward (PosixTimerState::State &state, Time::Timestamp current) const

void	service (uint64_t generation)

void	changed ()

int	configure (int flags, Time::Timestamp value, Time::Timestamp interval, void *previous)

int	getTime (void *value)

Private Attributes
Mutex	m_Lock

ConditionVariable	m_Readers

PosixTimerState::State	m_State

ReadinessGenerations	m_Generations

uint64_t	m_Counter

uint64_t	m_ClockGeneration

size_t	m_DescriptorOwners

int	m_Clock

bool	m_Expired

bool	m_CancelOnSet

bool	m_CancelPending

bool	m_CancelWake

bool	m_AdmissionOpen

Friends
class	TimerFdService

int	posix_timerfd_settime (int, int, const void , void )

int	posix_timerfd_gettime (int, void *)

Additional Inherited Members
Protected Member Functions inherited from ReadinessSource
void	notifyReadiness (ReadyMask mask)

void	closeReadiness (ReadyMask mask=ReadyInvalid\|ReadyHangup)

Detailed Description

Settings and unread expirations belong to the shared open description.

Definition at line 26 of file timerfd-syscalls.h.

Constructor & Destructor Documentation

◆ TimerFd()

TimerFd::TimerFd ( int clock )

explicit

Definition at line 115 of file timerfd-syscalls.cc.

◆ ~TimerFd()

TimerFd::~TimerFd ( )

override

Definition at line 130 of file timerfd-syscalls.cc.

Member Function Documentation

◆ addDescriptorOwner()

bool TimerFd::addDescriptorOwner ( )

Definition at line 346 of file timerfd-syscalls.cc.

◆ changed()

void TimerFd::changed ( )

private

Definition at line 171 of file timerfd-syscalls.cc.

◆ configure()

int TimerFd::configure	(	int	flags,
		Time::Timestamp	value,
		Time::Timestamp	interval,
		void *	previous
	)

private

Definition at line 262 of file timerfd-syscalls.cc.

◆ forward()

uint64_t TimerFd::forward	(	PosixTimerState::State &	state,
		Time::Timestamp	current
	)		const

private

Definition at line 160 of file timerfd-syscalls.cc.

◆ getTime()

int TimerFd::getTime ( void * value )

private

Definition at line 307 of file timerfd-syscalls.cc.

◆ now()

Time::Timestamp TimerFd::now ( const PosixClockSnapshot & clock ) const

private

Definition at line 139 of file timerfd-syscalls.cc.

◆ queryReady()

ReadyMask TimerFd::queryReady ( )

Definition at line 334 of file timerfd-syscalls.cc.

◆ readable()

bool TimerFd::readable ( ) const

private

Definition at line 135 of file timerfd-syscalls.cc.

◆ readinessGenerations()

ReadinessGenerations TimerFd::readinessGenerations ( )

overridevirtual

Return source-serialized rising-edge sequences where available.

A source increments the corresponding sequence while holding the same lock which changes its readiness predicate. Consumers can then recover a drain/refill transition even if the two callback deliveries are reordered.

Reimplemented from ReadinessSource.

Definition at line 341 of file timerfd-syscalls.cc.

◆ readToUser()

int TimerFd::readToUser	(	void *	buffer,
		size_t	count,
		bool	canBlock
	)

Definition at line 195 of file timerfd-syscalls.cc.

◆ readWithCopy()

int TimerFd::readWithCopy	(	size_t	count,
		bool	canBlock,
		PosixDescriptorReadCopy	copy,
		void *	context
	)

Definition at line 199 of file timerfd-syscalls.cc.

◆ removeDescriptorOwner()

void TimerFd::removeDescriptorOwner ( )

Definition at line 355 of file timerfd-syscalls.cc.

◆ service()

void TimerFd::service ( uint64_t generation )

private

Definition at line 176 of file timerfd-syscalls.cc.

◆ update()

void TimerFd::update ( const PosixClockSnapshot & clock )

private

Definition at line 143 of file timerfd-syscalls.cc.

Friends And Related Symbol Documentation

◆ posix_timerfd_gettime

int posix_timerfd_gettime	(	int	,
		void *
	)

friend

Definition at line 418 of file timerfd-syscalls.cc.

◆ posix_timerfd_settime

int posix_timerfd_settime	(	int	,
		int	,
		const void *	,
		void *
	)

friend

Definition at line 392 of file timerfd-syscalls.cc.

◆ TimerFdService

friend class TimerFdService

friend

Definition at line 39 of file timerfd-syscalls.h.

Member Data Documentation

◆ m_AdmissionOpen

bool TimerFd::m_AdmissionOpen

private

Definition at line 67 of file timerfd-syscalls.h.

◆ m_CancelOnSet

bool TimerFd::m_CancelOnSet

private

Definition at line 64 of file timerfd-syscalls.h.

◆ m_CancelPending

bool TimerFd::m_CancelPending

private

Definition at line 65 of file timerfd-syscalls.h.

◆ m_CancelWake

bool TimerFd::m_CancelWake

private

Definition at line 66 of file timerfd-syscalls.h.

◆ m_Clock

int TimerFd::m_Clock

private

Definition at line 62 of file timerfd-syscalls.h.

◆ m_ClockGeneration

uint64_t TimerFd::m_ClockGeneration

private

Definition at line 60 of file timerfd-syscalls.h.

◆ m_Counter

uint64_t TimerFd::m_Counter

private

Definition at line 59 of file timerfd-syscalls.h.

◆ m_DescriptorOwners

size_t TimerFd::m_DescriptorOwners

private

Definition at line 61 of file timerfd-syscalls.h.

◆ m_Expired

bool TimerFd::m_Expired

private

Definition at line 63 of file timerfd-syscalls.h.

◆ m_Generations

ReadinessGenerations TimerFd::m_Generations

private

Definition at line 58 of file timerfd-syscalls.h.

◆ m_Lock

Mutex TimerFd::m_Lock

private

Definition at line 55 of file timerfd-syscalls.h.

◆ m_Readers

ConditionVariable TimerFd::m_Readers

private

Definition at line 56 of file timerfd-syscalls.h.

◆ m_State

PosixTimerState::State TimerFd::m_State

private

Definition at line 57 of file timerfd-syscalls.h.

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

Public Member Functions

Private Member Functions

Private Attributes

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ TimerFd()

◆ ~TimerFd()

Member Function Documentation

◆ addDescriptorOwner()

◆ changed()

◆ configure()

◆ forward()

◆ getTime()

◆ now()

◆ queryReady()

◆ readable()

◆ readinessGenerations()

◆ readToUser()

◆ readWithCopy()

◆ removeDescriptorOwner()

◆ service()

◆ update()

Friends And Related Symbol Documentation

◆ posix_timerfd_gettime

◆ posix_timerfd_settime

◆ TimerFdService

Member Data Documentation

◆ m_AdmissionOpen

◆ m_CancelOnSet

◆ m_CancelPending

◆ m_CancelWake

◆ m_Clock

◆ m_ClockGeneration

◆ m_Counter

◆ m_DescriptorOwners

◆ m_Expired

◆ m_Generations

◆ m_Lock

◆ m_Readers

◆ m_State