net: Fix TCP keepalive handling for Solaris.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@204688 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 25 insertions, 0 deletions

diff --git a/libgo/go/net/tcpsockopt_solaris.go b/libgo/go/net/tcpsockopt_solaris.go
new file mode 100644
index 00000000000..a285e2d8d61
--- /dev/null
+++ b/libgo/go/net/tcpsockopt_solaris.go
@@ -0,0 +1,25 @@
+// Copyright 2009 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"
+	"time"
+)
+
+// Set keep alive period.
+func setKeepAlivePeriod(fd *netFD, d time.Duration) error {
+	if err := fd.incref(); err != nil {
+		return err
+	}
+	defer fd.decref()
+
+	// The kernel expects milliseconds so round to next highest millisecond.
+	d += (time.Millisecond - time.Nanosecond)
+	msecs := int(d.Nanoseconds() / time.Millisecond)
+
+	return os.NewSyscallError("setsockopt", syscall.SetsockoptInt(fd.sysfd, syscall.IPPROTO_TCP, syscall.TCP_KEEPALIVE_THRESHOLD, msecs))
+}