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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libgo/go/net/newpollserver.go
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Diffstat (limited to 'libgo/go/net/newpollserver.go')
-rw-r--r--libgo/go/net/newpollserver.go41
1 files changed, 41 insertions, 0 deletions
diff --git a/libgo/go/net/newpollserver.go b/libgo/go/net/newpollserver.go
new file mode 100644
index 000000000..820e70b46
--- /dev/null
+++ b/libgo/go/net/newpollserver.go
@@ -0,0 +1,41 @@
+// 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
+}