Source file src/pkg/net/newpollserver.go

     1	// Copyright 2010 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	package net
     6	
     7	import (
     8		"os"
     9		"syscall"
    10	)
    11	
    12	func newPollServer() (s *pollServer, err os.Error) {
    13		s = new(pollServer)
    14		s.cr = make(chan *netFD, 1)
    15		s.cw = make(chan *netFD, 1)
    16		if s.pr, s.pw, err = os.Pipe(); err != nil {
    17			return nil, err
    18		}
    19		var e int
    20		if e = syscall.SetNonblock(s.pr.Fd(), true); e != 0 {
    21			goto Errno
    22		}
    23		if e = syscall.SetNonblock(s.pw.Fd(), true); e != 0 {
    24			goto Errno
    25		}
    26		if s.poll, err = newpollster(); err != nil {
    27			goto Error
    28		}
    29		if _, err = s.poll.AddFD(s.pr.Fd(), 'r', true); err != nil {
    30			s.poll.Close()
    31			goto Error
    32		}
    33		s.pending = make(map[int]*netFD)
    34		go s.Run()
    35		return s, nil
    36	
    37	Errno:
    38		err = &os.PathError{"setnonblock", s.pr.Name(), os.Errno(e)}
    39	Error:
    40		s.pr.Close()
    41		s.pw.Close()
    42		return nil, err
    43	}
The Go Programming Language

Source file src/pkg/net/newpollserver.go
