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transport.go
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transport.go
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// Package transports implements Generic interfaces for telehash transports
//
// Transports must implement the Config and Transport interfaces. Endpoints
// are responsible for actually managing the transports.
//
// e3x.New(keys, udp.Config{})
package transports
import (
"net"
)
// Config must be implemented by transport packages
type Config interface {
Open() (Transport, error)
}
// Transport is an opened transport.
// This interface is used internally by E3X.
type Transport interface {
// Addrs returns all the known addresses this transport is reachable at.
Addrs() []net.Addr
// Dial will open a new connection to addr.
// io.EOF is returned when the transport is closed.
// ErrInvalidAddr must be returned when the addr is
// not suppoorted by the transport.
Dial(addr net.Addr) (net.Conn, error)
// Accept will accept the next incomming connection.
// io.EOF is returned when the transport is closed.
Accept() (c net.Conn, err error)
// Close closes the transport.
Close() error
}
func EqualAddr(a, b net.Addr) bool {
if a == nil && b == nil {
return true
}
if a == nil || b == nil {
return false
}
if a.Network() != b.Network() {
return false
}
if x, ok := a.(AddrEqualer); ok && x.Equal(b) {
return true
}
if x, ok := b.(AddrEqualer); ok && x.Equal(a) {
return true
}
return a.String() == b.String()
}
type AddrEqualer interface {
Equal(other net.Addr) bool
}