libgo/go/net/writev_unix.go

   1 // Copyright 2016 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 // +build darwin dragonfly freebsd linux netbsd openbsd
   6
   7 package net
   8
   9 import (
  10         "runtime"
  11         "syscall"
  12 )
  13
  14 func (c *conn) writeBuffers(v *Buffers) (int64, error) {
  15         if !c.ok() {
  16                 return 0, syscall.EINVAL
  17         }
  18         n, err := c.fd.writeBuffers(v)
  19         if err != nil {
  20                 return n, &OpError{Op: "writev", Net: c.fd.net, Source: c.fd.laddr, Addr: c.fd.raddr, Err: err}
  21         }
  22         return n, nil
  23 }
  24
  25 func (fd *netFD) writeBuffers(v *Buffers) (n int64, err error) {
  26         n, err = fd.pfd.Writev((*[][]byte)(v))
  27         runtime.KeepAlive(fd)
  28         return n, wrapSyscallError("writev", err)
  29 }