package epoll

import "github.com/cilium/ebpf/internal/epoll"

Index ¶

• Variables
• type Poller
• func New() (_ *Poller, err error)
• func (p *Poller) Add(fd int, id int) error
• func (p *Poller) Close() error
• func (p *Poller) Flush() error
• func (p *Poller) Wait(events []unix.EpollEvent, deadline time.Time) (int, error)

Variables ¶

var (
	ErrFlushed = errors.New("data was flushed")
)

Types ¶

type Poller ¶

type Poller struct {
	// contains filtered or unexported fields
}

Poller waits for readiness notifications from multiple file descriptors.

The wait can be interrupted by calling Close.

func New ¶

func New() (_ *Poller, err error)

func (*Poller) Add ¶

func (p *Poller) Add(fd int, id int) error

Add an fd to the poller.

id is returned by Wait in the unix.EpollEvent.Pad field any may be zero. It must not exceed math.MaxInt32.

Add is blocked by Wait.

func (*Poller) Close ¶

func (p *Poller) Close() error

Close the poller.

Interrupts any calls to Wait. Multiple calls to Close are valid, but subsequent calls will return os.ErrClosed.

func (*Poller) Flush ¶

func (p *Poller) Flush() error

Flush unblocks Wait if it's epoll_wait, for purposes of reading pending samples

func (*Poller) Wait ¶

func (p *Poller) Wait(events []unix.EpollEvent, deadline time.Time) (int, error)

Wait for events.

Returns the number of pending events and any errors.

• os.ErrClosed if interrupted by [Close].
• ErrFlushed if interrupted by [Flush].
• os.ErrDeadlineExceeded if deadline is reached.

Source Files ¶

poller.go