netutil

package

v0.19.3 Latest Latest Go to latest Published: Apr 4, 2024 License: Apache-2.0 Imports: 8 Imported by: 15

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Repository

github.com/vitessio/vitess

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Documentation ¶

Overview ¶

Package netutil contains network-related utility functions.

Index ¶

func DNSTracker(host string) func() (bool, error)
func FullyQualifiedHostname() (string, error)
func FullyQualifiedHostnameOrPanic() string
func JoinHostPort(host string, port int32) string
func NormalizeIP(s string) string
func SplitHostPort(addr string) (string, int, error)
type ConnWithTimeouts
- func NewConnWithTimeouts(conn net.Conn, readTimeout time.Duration, writeTimeout time.Duration) ConnWithTimeouts

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func DNSTracker ¶ added in v0.12.0

func DNSTracker(host string) func() (bool, error)

DNSTracker is a closure that persists state for

tracking changes in the DNS resolution of a target dns name
returns true if the DNS name resolution has changed
If there is a lookup problem, we pretend nothing has changed

func FullyQualifiedHostname ¶

func FullyQualifiedHostname() (string, error)

FullyQualifiedHostname returns the FQDN of the machine.

func FullyQualifiedHostnameOrPanic ¶

func FullyQualifiedHostnameOrPanic() string

FullyQualifiedHostnameOrPanic is the same as FullyQualifiedHostname but panics in case of an error.

func JoinHostPort ¶

func JoinHostPort(host string, port int32) string

JoinHostPort is an extension to net.JoinHostPort that also formats the integer port.

func NormalizeIP ¶ added in v0.12.0

func NormalizeIP(s string) string

NormalizeIP normalizes loopback addresses to avoid spurious errors when communicating to different representations of the loopback.

Note: this also maps IPv6 localhost to IPv4 localhost, as TabletManagerClient.GetReplicas() (the only place this function is used on) will return only IPv4 addresses.

func SplitHostPort ¶

func SplitHostPort(addr string) (string, int, error)

SplitHostPort is an alternative to net.SplitHostPort that also parses the integer port. In addition, it is more tolerant of improperly escaped IPv6 addresses, such as "::1:456", which should actually be "[::1]:456".

Types ¶

type ConnWithTimeouts ¶

type ConnWithTimeouts struct {
	net.Conn
	// contains filtered or unexported fields
}

A ConnWithTimeouts is a wrapper to net.Comm that allows to set a read and write timeouts.

func NewConnWithTimeouts ¶

func NewConnWithTimeouts(conn net.Conn, readTimeout time.Duration, writeTimeout time.Duration) ConnWithTimeouts

NewConnWithTimeouts wraps a net.Conn with read and write deadilnes.

func (ConnWithTimeouts) Read ¶

func (c ConnWithTimeouts) Read(b []byte) (int, error)

Read sets a read deadilne and delegates to conn.Read.

func (ConnWithTimeouts) SetDeadline ¶

func (c ConnWithTimeouts) SetDeadline(t time.Time) error

SetDeadline implements the Conn SetDeadline method.

func (ConnWithTimeouts) SetReadDeadline ¶

func (c ConnWithTimeouts) SetReadDeadline(t time.Time) error

SetReadDeadline implements the Conn SetReadDeadline method.

func (ConnWithTimeouts) SetWriteDeadline ¶

func (c ConnWithTimeouts) SetWriteDeadline(t time.Time) error

SetWriteDeadline implements the Conn SetWriteDeadline method.

func (ConnWithTimeouts) Write ¶

func (c ConnWithTimeouts) Write(b []byte) (int, error)

Write sets a write deadline and delegates to conn.Write

Source Files ¶

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