diff options
Diffstat (limited to 'src/pkg/net/tcpsock_plan9.go')
-rw-r--r-- | src/pkg/net/tcpsock_plan9.go | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/src/pkg/net/tcpsock_plan9.go b/src/pkg/net/tcpsock_plan9.go deleted file mode 100644 index 52019d7b4..000000000 --- a/src/pkg/net/tcpsock_plan9.go +++ /dev/null @@ -1,198 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package net - -import ( - "io" - "os" - "syscall" - "time" -) - -// TCPConn is an implementation of the Conn interface for TCP network -// connections. -type TCPConn struct { - conn -} - -func newTCPConn(fd *netFD) *TCPConn { - return &TCPConn{conn{fd}} -} - -// ReadFrom implements the io.ReaderFrom ReadFrom method. -func (c *TCPConn) ReadFrom(r io.Reader) (int64, error) { - return genericReadFrom(c, r) -} - -// CloseRead shuts down the reading side of the TCP connection. -// Most callers should just use Close. -func (c *TCPConn) CloseRead() error { - if !c.ok() { - return syscall.EINVAL - } - return c.fd.closeRead() -} - -// CloseWrite shuts down the writing side of the TCP connection. -// Most callers should just use Close. -func (c *TCPConn) CloseWrite() error { - if !c.ok() { - return syscall.EINVAL - } - return c.fd.closeWrite() -} - -// SetLinger sets the behavior of Close on a connection which still -// has data waiting to be sent or to be acknowledged. -// -// If sec < 0 (the default), the operating system finishes sending the -// data in the background. -// -// If sec == 0, the operating system discards any unsent or -// unacknowledged data. -// -// If sec > 0, the data is sent in the background as with sec < 0. On -// some operating systems after sec seconds have elapsed any remaining -// unsent data may be discarded. -func (c *TCPConn) SetLinger(sec int) error { - return syscall.EPLAN9 -} - -// SetKeepAlive sets whether the operating system should send -// keepalive messages on the connection. -func (c *TCPConn) SetKeepAlive(keepalive bool) error { - if !c.ok() { - return syscall.EPLAN9 - } - return setKeepAlive(c.fd, keepalive) -} - -// SetKeepAlivePeriod sets period between keep alives. -func (c *TCPConn) SetKeepAlivePeriod(d time.Duration) error { - if !c.ok() { - return syscall.EPLAN9 - } - return setKeepAlivePeriod(c.fd, d) -} - -// SetNoDelay controls whether the operating system should delay -// packet transmission in hopes of sending fewer packets (Nagle's -// algorithm). The default is true (no delay), meaning that data is -// sent as soon as possible after a Write. -func (c *TCPConn) SetNoDelay(noDelay bool) error { - return syscall.EPLAN9 -} - -// DialTCP connects to the remote address raddr on the network net, -// which must be "tcp", "tcp4", or "tcp6". If laddr is not nil, it is -// used as the local address for the connection. -func DialTCP(net string, laddr, raddr *TCPAddr) (*TCPConn, error) { - return dialTCP(net, laddr, raddr, noDeadline) -} - -func dialTCP(net string, laddr, raddr *TCPAddr, deadline time.Time) (*TCPConn, error) { - if !deadline.IsZero() { - panic("net.dialTCP: deadline not implemented on Plan 9") - } - switch net { - case "tcp", "tcp4", "tcp6": - default: - return nil, &OpError{"dial", net, raddr, UnknownNetworkError(net)} - } - if raddr == nil { - return nil, &OpError{"dial", net, nil, errMissingAddress} - } - fd, err := dialPlan9(net, laddr, raddr) - if err != nil { - return nil, err - } - return newTCPConn(fd), nil -} - -// TCPListener is a TCP network listener. Clients should typically -// use variables of type Listener instead of assuming TCP. -type TCPListener struct { - fd *netFD -} - -// AcceptTCP accepts the next incoming call and returns the new -// connection. -func (l *TCPListener) AcceptTCP() (*TCPConn, error) { - if l == nil || l.fd == nil || l.fd.ctl == nil { - return nil, syscall.EINVAL - } - fd, err := l.fd.acceptPlan9() - if err != nil { - return nil, err - } - return newTCPConn(fd), nil -} - -// Accept implements the Accept method in the Listener interface; it -// waits for the next call and returns a generic Conn. -func (l *TCPListener) Accept() (Conn, error) { - if l == nil || l.fd == nil || l.fd.ctl == nil { - return nil, syscall.EINVAL - } - c, err := l.AcceptTCP() - if err != nil { - return nil, err - } - return c, nil -} - -// Close stops listening on the TCP address. -// Already Accepted connections are not closed. -func (l *TCPListener) Close() error { - if l == nil || l.fd == nil || l.fd.ctl == nil { - return syscall.EINVAL - } - if _, err := l.fd.ctl.WriteString("hangup"); err != nil { - l.fd.ctl.Close() - return &OpError{"close", l.fd.ctl.Name(), l.fd.laddr, err} - } - return l.fd.ctl.Close() -} - -// Addr returns the listener's network address, a *TCPAddr. -func (l *TCPListener) Addr() Addr { return l.fd.laddr } - -// SetDeadline sets the deadline associated with the listener. -// A zero time value disables the deadline. -func (l *TCPListener) SetDeadline(t time.Time) error { - if l == nil || l.fd == nil || l.fd.ctl == nil { - return syscall.EINVAL - } - return l.fd.setDeadline(t) -} - -// File returns a copy of the underlying os.File, set to blocking -// mode. It is the caller's responsibility to close f when finished. -// Closing l does not affect f, and closing f does not affect l. -// -// The returned os.File's file descriptor is different from the -// connection's. Attempting to change properties of the original -// using this duplicate may or may not have the desired effect. -func (l *TCPListener) File() (f *os.File, err error) { return l.dup() } - -// ListenTCP announces on the TCP address laddr and returns a TCP -// listener. Net must be "tcp", "tcp4", or "tcp6". If laddr has a -// port of 0, ListenTCP will choose an available port. The caller can -// use the Addr method of TCPListener to retrieve the chosen address. -func ListenTCP(net string, laddr *TCPAddr) (*TCPListener, error) { - switch net { - case "tcp", "tcp4", "tcp6": - default: - return nil, &OpError{"listen", net, laddr, UnknownNetworkError(net)} - } - if laddr == nil { - laddr = &TCPAddr{} - } - fd, err := listenPlan9(net, laddr) - if err != nil { - return nil, err - } - return &TCPListener{fd}, nil -} |