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License: MIT Signed-off-by: Jeromy <jeromyj@gmail.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,148 @@ | ||
| package transport | ||
|
|
||
| import ( | ||
| "net" | ||
| "sync" | ||
|
|
||
| utp "github.com/ipfs/go-ipfs/Godeps/_workspace/src/github.com/anacrolix/utp" | ||
| ma "github.com/ipfs/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-multiaddr" | ||
| manet "github.com/ipfs/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-multiaddr-net" | ||
| mautp "github.com/ipfs/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-multiaddr-net/utp" | ||
| ) | ||
|
|
||
| type UtpTransport struct { | ||
| sockLock sync.Mutex | ||
| sockets map[string]*UtpSocket | ||
| } | ||
|
|
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| func NewUtpTransport() *UtpTransport { | ||
| return &UtpTransport{ | ||
| sockets: make(map[string]*UtpSocket), | ||
| } | ||
| } | ||
|
|
||
| func (d *UtpTransport) Matches(a ma.Multiaddr) bool { | ||
| p := a.Protocols() | ||
| return len(p) == 3 && p[2].Name == "utp" | ||
| } | ||
|
|
||
| type UtpSocket struct { | ||
| s *utp.Socket | ||
| laddr ma.Multiaddr | ||
| transport Transport | ||
| } | ||
|
|
||
| func (t *UtpTransport) Listen(laddr ma.Multiaddr) (Listener, error) { | ||
| t.sockLock.Lock() | ||
| defer t.sockLock.Unlock() | ||
| s, ok := t.sockets[laddr.String()] | ||
| if ok { | ||
| return s, nil | ||
| } | ||
|
|
||
| ns, err := t.newConn(laddr) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
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| t.sockets[laddr.String()] = ns | ||
| return ns, nil | ||
| } | ||
|
|
||
| func (t *UtpTransport) Dialer(laddr ma.Multiaddr, opts ...DialOpt) (Dialer, error) { | ||
| t.sockLock.Lock() | ||
| defer t.sockLock.Unlock() | ||
| s, ok := t.sockets[laddr.String()] | ||
| if ok { | ||
| return s, nil | ||
| } | ||
|
|
||
| ns, err := t.newConn(laddr, opts...) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
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| t.sockets[laddr.String()] = ns | ||
| return ns, nil | ||
| } | ||
|
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| func (t *UtpTransport) newConn(addr ma.Multiaddr, opts ...DialOpt) (*UtpSocket, error) { | ||
| network, netaddr, err := manet.DialArgs(addr) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| s, err := utp.NewSocket("udp"+network[3:], netaddr) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| laddr, err := manet.FromNetAddr(mautp.MakeAddr(s.LocalAddr())) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| return &UtpSocket{ | ||
| s: s, | ||
| laddr: laddr, | ||
| transport: t, | ||
| }, nil | ||
| } | ||
|
|
||
| func (s *UtpSocket) Dial(raddr ma.Multiaddr) (Conn, error) { | ||
| _, addr, err := manet.DialArgs(raddr) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| con, err := s.s.Dial(addr) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| mnc, err := manet.WrapNetConn(&mautp.Conn{Conn: con}) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
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| return &connWrap{ | ||
| Conn: mnc, | ||
| transport: s.transport, | ||
| }, nil | ||
| } | ||
|
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| func (s *UtpSocket) Accept() (Conn, error) { | ||
| c, err := s.s.Accept() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| mnc, err := manet.WrapNetConn(&mautp.Conn{Conn: c}) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
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| return &connWrap{ | ||
| Conn: mnc, | ||
| transport: s.transport, | ||
| }, nil | ||
| } | ||
|
|
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| func (s *UtpSocket) Matches(a ma.Multiaddr) bool { | ||
| p := a.Protocols() | ||
| return len(p) == 3 && p[2].Name == "utp" | ||
| } | ||
|
|
||
| func (t *UtpSocket) Close() error { | ||
| return t.s.Close() | ||
| } | ||
|
|
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| func (t *UtpSocket) Addr() net.Addr { | ||
| return t.s.Addr() | ||
| } | ||
|
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| func (t *UtpSocket) Multiaddr() ma.Multiaddr { | ||
| return t.laddr | ||
| } | ||
|
|
||
| var _ Transport = (*UtpTransport)(nil) |
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