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-rw-r--r--src/net/tcpsockopt_windows.go29
1 files changed, 29 insertions, 0 deletions
diff --git a/src/net/tcpsockopt_windows.go b/src/net/tcpsockopt_windows.go
new file mode 100644
index 0000000..4a0b094
--- /dev/null
+++ b/src/net/tcpsockopt_windows.go
@@ -0,0 +1,29 @@
+// 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"
+ "runtime"
+ "syscall"
+ "time"
+ "unsafe"
+)
+
+func setKeepAlivePeriod(fd *netFD, d time.Duration) error {
+ // The kernel expects milliseconds so round to next highest
+ // millisecond.
+ msecs := uint32(roundDurationUp(d, time.Millisecond))
+ ka := syscall.TCPKeepalive{
+ OnOff: 1,
+ Time: msecs,
+ Interval: msecs,
+ }
+ ret := uint32(0)
+ size := uint32(unsafe.Sizeof(ka))
+ err := fd.pfd.WSAIoctl(syscall.SIO_KEEPALIVE_VALS, (*byte)(unsafe.Pointer(&ka)), size, nil, 0, &ret, nil, 0)
+ runtime.KeepAlive(fd)
+ return os.NewSyscallError("wsaioctl", err)
+}