go.mod: github.com/containerd/continuity v0.3.0

https://github.com/containerd/continuity/compare/v0.2.2...v0.3.0

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>

vendor/github.com/Microsoft/go-winio/hvsock.go

@@ -1,3 +1,4 @@
+//go:build windows
 // +build windows
 
 package winio
@@ -252,15 +253,23 @@ func (conn *HvsockConn) Close() error {
 	return conn.sock.Close()
 }
 
+func (conn *HvsockConn) IsClosed() bool {
+	return conn.sock.IsClosed()
+}
+
 func (conn *HvsockConn) shutdown(how int) error {
-	err := syscall.Shutdown(conn.sock.handle, syscall.SHUT_RD)
+	if conn.IsClosed() {
+		return ErrFileClosed
+	}
+
+	err := syscall.Shutdown(conn.sock.handle, how)
 	if err != nil {
 		return os.NewSyscallError("shutdown", err)
 	}
 	return nil
 }
 
-// CloseRead shuts down the read end of the socket.
+// CloseRead shuts down the read end of the socket, preventing future read operations.
 func (conn *HvsockConn) CloseRead() error {
 	err := conn.shutdown(syscall.SHUT_RD)
 	if err != nil {
@@ -269,8 +278,8 @@ func (conn *HvsockConn) CloseRead() error {
 	return nil
 }
 
-// CloseWrite shuts down the write end of the socket, notifying the other endpoint that
-// no more data will be written.
+// CloseWrite shuts down the write end of the socket, preventing future write operations and
+// notifying the other endpoint that no more data will be written.
 func (conn *HvsockConn) CloseWrite() error {
 	err := conn.shutdown(syscall.SHUT_WR)
 	if err != nil {