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// Copyright 2010 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 (
"os"
"syscall"
)
func newPollServer() (s *pollServer, err os.Error) {
s = new(pollServer)
s.cr = make(chan *netFD, 1)
s.cw = make(chan *netFD, 1)
if s.pr, s.pw, err = os.Pipe(); err != nil {
return nil, err
}
var e int
if e = syscall.SetNonblock(s.pr.Fd(), true); e != 0 {
Errno:
err = &os.PathError{"setnonblock", s.pr.Name(), os.Errno(e)}
Error:
s.pr.Close()
s.pw.Close()
return nil, err
}
if e = syscall.SetNonblock(s.pw.Fd(), true); e != 0 {
goto Errno
}
if s.poll, err = newpollster(); err != nil {
goto Error
}
if err = s.poll.AddFD(s.pr.Fd(), 'r', true); err != nil {
s.poll.Close()
goto Error
}
s.pending = make(map[int]*netFD)
go s.Run()
return s, nil
}
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