libgo: Merge to master revision 19184.

The next revision, 19185, renames several runtime files, and
will be handled in a separate change.

From-SVN: r211328

1 files changed, 18 insertions, 0 deletions

diff --git a/libgo/go/net/tcpsockopt_plan9.go b/libgo/go/net/tcpsockopt_plan9.go
new file mode 100644
index 00000000000..0e7a6647caf
--- /dev/null
+++ b/libgo/go/net/tcpsockopt_plan9.go
@@ -0,0 +1,18 @@
+// Copyright 2014 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.
+
+// TCP socket options for plan9
+
+package net
+
+import (
+	"time"
+)
+
+// Set keep alive period.
+func setKeepAlivePeriod(fd *netFD, d time.Duration) error {
+	cmd := "keepalive " + string(int64(d/time.Millisecond))
+	_, e := fd.ctl.WriteAt([]byte(cmd), 0)
+	return e
+}