diff options
Diffstat (limited to 'libgo/go/net/rawconn.go')
-rw-r--r-- | libgo/go/net/rawconn.go | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/libgo/go/net/rawconn.go b/libgo/go/net/rawconn.go new file mode 100644 index 0000000..d67be64 --- /dev/null +++ b/libgo/go/net/rawconn.go @@ -0,0 +1,62 @@ +// Copyright 2017 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 ( + "runtime" + "syscall" +) + +// BUG(mikio): On Windows, the Read and Write methods of +// syscall.RawConn are not implemented. + +// BUG(mikio): On NaCl and Plan 9, the Control, Read and Write methods +// of syscall.RawConn are not implemented. + +type rawConn struct { + fd *netFD +} + +func (c *rawConn) ok() bool { return c != nil && c.fd != nil } + +func (c *rawConn) Control(f func(uintptr)) error { + if !c.ok() { + return syscall.EINVAL + } + err := c.fd.pfd.RawControl(f) + runtime.KeepAlive(c.fd) + if err != nil { + err = &OpError{Op: "raw-control", Net: c.fd.net, Source: nil, Addr: c.fd.laddr, Err: err} + } + return err +} + +func (c *rawConn) Read(f func(uintptr) bool) error { + if !c.ok() { + return syscall.EINVAL + } + err := c.fd.pfd.RawRead(f) + runtime.KeepAlive(c.fd) + if err != nil { + err = &OpError{Op: "raw-read", Net: c.fd.net, Source: c.fd.laddr, Addr: c.fd.raddr, Err: err} + } + return err +} + +func (c *rawConn) Write(f func(uintptr) bool) error { + if !c.ok() { + return syscall.EINVAL + } + err := c.fd.pfd.RawWrite(f) + runtime.KeepAlive(c.fd) + if err != nil { + err = &OpError{Op: "raw-write", Net: c.fd.net, Source: c.fd.laddr, Addr: c.fd.raddr, Err: err} + } + return err +} + +func newRawConn(fd *netFD) (*rawConn, error) { + return &rawConn{fd: fd}, nil +} |