network

type AbstractConn interface {
	Close() error
	LocalAddr() net.Addr
	RemoteAddr() net.Addr
	SetDeadline(t time.Time) error
	SetReadDeadline(t time.Time) error
	SetWriteDeadline(t time.Time) error
}

type BindPacketConn interface {
	NetPacketConn
	net.Conn
}

type CachedPacketReader interface {
	ReadCachedPacket() *PacketBuffer
}

type CachedReader interface {
	ReadCached() *buf.Buffer
}

type CountFunc func(n int64)

type DefaultDialer struct {
	net.Dialer
	net.ListenConfig
}

type Dialer interface {
	DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error)
	ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error)
}

type EarlyConn interface {
	NeedHandshake() bool
}

type ExtendedConn interface {
	ExtendedReader
	ExtendedWriter
	net.Conn
}

type ExtendedReader interface {
	io.Reader
	ReadBuffer(buffer *buf.Buffer) error
}

type ExtendedWriter interface {
	io.Writer
	WriteBuffer(buffer *buf.Buffer) error
}

type FrontHeadroom interface {
	FrontHeadroom() int
}

type HandshakeFailure interface {
	HandshakeFailure(err error) error
}

type HandshakeSuccess interface {
	HandshakeSuccess() error
}

type LazyHeadroom interface {
	LazyHeadroom() bool
}

type NetPacketConn interface {
	PacketConn
	NetPacketReader
	NetPacketWriter
}

type NetPacketReader interface {
	PacketReader
	ReadFrom(p []byte) (n int, addr net.Addr, err error)
}

type NetPacketWriter interface {
	PacketWriter
	WriteTo(p []byte, addr net.Addr) (n int, err error)
}

type PacketBuffer struct {
	Buffer      *buf.Buffer
	Destination M.Socksaddr
}

type PacketConn interface {
	PacketReader
	PacketWriter

	Close() error
	LocalAddr() net.Addr
	SetDeadline(t time.Time) error
	SetReadDeadline(t time.Time) error
	SetWriteDeadline(t time.Time) error
}

type PacketReadCounter interface {
	PacketReader
	UnwrapPacketReader() (PacketReader, []CountFunc)
}

type PacketReadWaitCreator interface {
	CreateReadWaiter() (PacketReadWaiter, bool)
}

type PacketReadWaiter interface {
	ReadWaitable
	WaitReadPacket() (buffer *buf.Buffer, destination M.Socksaddr, err error)
}

type PacketReader interface {
	ReadPacket(buffer *buf.Buffer) (destination M.Socksaddr, err error)
}

type PacketWriteCounter interface {
	PacketWriter
	UnwrapPacketWriter() (PacketWriter, []CountFunc)
}

type PacketWriter interface {
	WritePacket(buffer *buf.Buffer, destination M.Socksaddr) error
}

type ParallelDialer interface {
	Dialer
	DialParallel(ctx context.Context, network string, destination M.Socksaddr, destinationAddresses []netip.Addr) (net.Conn, error)
}

type PayloadDialer interface {
	DialPayloadContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error)
}

type ReadCloser interface {
	CloseRead() error
}

type ReadCounter interface {
	io.Reader
	UnwrapReader() (io.Reader, []CountFunc)
}

type ReadWaitCreator interface {
	CreateReadWaiter() (ReadWaiter, bool)
}

type ReadWaitOptions struct {
	FrontHeadroom int
	RearHeadroom  int
	MTU           int
}

type ReadWaitable interface {
	InitializeReadWaiter(options ReadWaitOptions) (needCopy bool)
}

type ReadWaiter interface {
	ReadWaitable
	WaitReadBuffer() (buffer *buf.Buffer, err error)
}

type ReaderWithMTU interface {
	ReaderMTU() int
}

type ReaderWithUpstream interface {
	ReaderReplaceable() bool
}

type RearHeadroom interface {
	RearHeadroom() int
}

type TCPConnectionHandler interface {
	NewConnection(ctx context.Context, conn net.Conn, metadata M.Metadata) error
}

type ThreadUnsafeWriter interface {
	WriteIsThreadUnsafe()
}

type TimeoutPacketReader interface {
	PacketReader
	SetReadDeadline(t time.Time) error
}

type UDPConnectionHandler interface {
	NewPacketConnection(ctx context.Context, conn PacketConn, metadata M.Metadata) error
}

type UDPHandler interface {
	NewPacket(ctx context.Context, conn PacketConn, buffer *buf.Buffer, metadata M.Metadata) error
}

type VectorisedPacketWriter interface {
	WriteVectorisedPacket(buffers []*buf.Buffer, destination M.Socksaddr) error
}

type VectorisedWriter interface {
	WriteVectorised(buffers []*buf.Buffer) error
}

type WithUpstreamReader interface {
	UpstreamReader() any
}

type WithUpstreamWriter interface {
	UpstreamWriter() any
}

type WriteCloser interface {
	CloseWrite() error
}

type WriteCounter interface {
	io.Writer
	UnwrapWriter() (io.Writer, []CountFunc)
}

type WriterWithMTU interface {
	WriterMTU() int
}

type WriterWithUpstream interface {
	WriterReplaceable() bool
}