package portallocator

import "github.com/docker/docker/libnetwork/portallocator"

Index ¶

• func GetPortRange() (start, end uint16)
• type PortAllocator
• func Get() *PortAllocator
• func (p *PortAllocator) ReleaseAll()
• func (p *PortAllocator) ReleasePort(ip net.IP, proto string, port int)
• func (p *PortAllocator) RequestPort(ip net.IP, proto string, port int) (int, error)
• func (p *PortAllocator) RequestPortInRange(ip net.IP, proto string, portStart, portEnd int) (int, error)
• func (p *PortAllocator) RequestPortsInRange(ips []net.IP, proto string, portStart, portEnd int) (int, error)

Functions ¶

func GetPortRange ¶

func GetPortRange() (start, end uint16)

GetPortRange returns the PortAllocator's default port range.

This function is for internal use in tests, and must not be used for other purposes.

Types ¶

type PortAllocator ¶

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

PortAllocator manages the transport ports database

func Get ¶

func Get() *PortAllocator

Get returns the PortAllocator

func (*PortAllocator) ReleaseAll ¶

func (p *PortAllocator) ReleaseAll()

ReleaseAll releases all ports for all ips.

func (*PortAllocator) ReleasePort ¶

func (p *PortAllocator) ReleasePort(ip net.IP, proto string, port int)

ReleasePort releases port from global ports pool for specified ip and proto.

func (*PortAllocator) RequestPort ¶

func (p *PortAllocator) RequestPort(ip net.IP, proto string, port int) (int, error)

RequestPort requests new port from global ports pool for specified ip and proto. If port is 0 it returns first free port. Otherwise it checks port availability in proto's pool and returns that port or error if port is already busy.

func (*PortAllocator) RequestPortInRange ¶

func (p *PortAllocator) RequestPortInRange(ip net.IP, proto string, portStart, portEnd int) (int, error)

RequestPortInRange is equivalent to PortAllocator.RequestPortsInRange with a single IP address. If ip is nil, a port is instead requested for the default IP (0.0.0.0).

func (*PortAllocator) RequestPortsInRange ¶

func (p *PortAllocator) RequestPortsInRange(ips []net.IP, proto string, portStart, portEnd int) (int, error)

RequestPortsInRange requests new ports from the global ports pool, for proto and each of ips. If portStart and portEnd are 0 it returns the first free port in the default ephemeral range. If portStart != portEnd it returns the first free port in the requested range. Otherwise, (portStart == portEnd) it checks port availability in the requested proto's port-pool and returns that port or error if port is already busy.

Source Files ¶

portallocator.go portallocator_unix.go