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improve document of the Transport and the dial and listen functions (#3875)

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This commit is contained in:
Marten Seemann
2023-06-02 13:45:40 +03:00
committed by GitHub
parent 1d093d7927
commit ad79149738
3 changed files with 34 additions and 18 deletions
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23
client.go
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@@ -43,7 +43,9 @@ type client struct {
var generateConnectionIDForInitial = protocol.GenerateConnectionIDForInitial
// DialAddr establishes a new QUIC connection to a server.
// It uses a new UDP connection and closes this connection when the QUIC connection is closed.
// It resolves the address, and then creates a new UDP connection to dial the QUIC server.
// When the QUIC connection is closed, this UDP connection is closed.
// See Dial for more details.
func DialAddr(ctx context.Context, addr string, tlsConf *tls.Config, conf *Config) (Connection, error) {
udpConn, err := net.ListenUDP("udp", &net.UDPAddr{IP: net.IPv4zero, Port: 0})
if err != nil {
@@ -61,7 +63,7 @@ func DialAddr(ctx context.Context, addr string, tlsConf *tls.Config, conf *Confi
}
// DialAddrEarly establishes a new 0-RTT QUIC connection to a server.
// It uses a new UDP connection and closes this connection when the QUIC connection is closed.
// See DialAddr for more details.
func DialAddrEarly(ctx context.Context, addr string, tlsConf *tls.Config, conf *Config) (EarlyConnection, error) {
udpConn, err := net.ListenUDP("udp", &net.UDPAddr{IP: net.IPv4zero, Port: 0})
if err != nil {
@@ -83,8 +85,8 @@ func DialAddrEarly(ctx context.Context, addr string, tlsConf *tls.Config, conf *
return conn, nil
}
// DialEarly establishes a new 0-RTT QUIC connection to a server using a net.PacketConn using the provided context.
// See DialEarly for details.
// DialEarly establishes a new 0-RTT QUIC connection to a server using a net.PacketConn.
// See Dial for more details.
func DialEarly(ctx context.Context, c net.PacketConn, addr net.Addr, tlsConf *tls.Config, conf *Config) (EarlyConnection, error) {
dl, err := setupTransport(c, tlsConf, false)
if err != nil {
@@ -98,12 +100,15 @@ func DialEarly(ctx context.Context, c net.PacketConn, addr net.Addr, tlsConf *tl
return conn, nil
}
// Dial establishes a new QUIC connection to a server using a net.PacketConn. If
// the PacketConn satisfies the OOBCapablePacketConn interface (as a net.UDPConn
// does), ECN and packet info support will be enabled. In this case, ReadMsgUDP
// and WriteMsgUDP will be used instead of ReadFrom and WriteTo to read/write
// packets.
// Dial establishes a new QUIC connection to a server using a net.PacketConn.
// If the PacketConn satisfies the OOBCapablePacketConn interface (as a net.UDPConn does),
// ECN and packet info support will be enabled. In this case, ReadMsgUDP and WriteMsgUDP
// will be used instead of ReadFrom and WriteTo to read/write packets.
// The tls.Config must define an application protocol (using NextProtos).
//
// This is a convenience function. More advanced use cases should instantiate a Transport,
// which offers configuration options for a more fine-grained control of the connection establishment,
// including reusing the underlying UDP socket for multiple QUIC connections.
func Dial(ctx context.Context, c net.PacketConn, addr net.Addr, tlsConf *tls.Config, conf *Config) (Connection, error) {
dl, err := setupTransport(c, tlsConf, false)
if err != nil {