net: don't export netFD closeRead and closeWrite methods

LGTM=iant
R=iant
CC=golang-codereviews
https://golang.org/cl/83910043

src/pkg/net/fd_plan9.go

@@ -150,14 +150,14 @@ func (fd *netFD) Write(b []byte) (n int, err error) {
 	return fd.data.Write(b)
 }
 
-func (fd *netFD) CloseRead() error {
+func (fd *netFD) closeRead() error {
 	if !fd.ok() {
 		return syscall.EINVAL
 	}
 	return syscall.EPLAN9
 }
 
-func (fd *netFD) CloseWrite() error {
+func (fd *netFD) closeWrite() error {
 	if !fd.ok() {
 		return syscall.EINVAL
 	}

src/pkg/net/fd_unix.go

@@ -208,11 +208,11 @@ func (fd *netFD) shutdown(how int) error {
 	return nil
 }
 
-func (fd *netFD) CloseRead() error {
+func (fd *netFD) closeRead() error {
 	return fd.shutdown(syscall.SHUT_RD)
 }
 
-func (fd *netFD) CloseWrite() error {
+func (fd *netFD) closeWrite() error {
 	return fd.shutdown(syscall.SHUT_WR)
 }
 

src/pkg/net/fd_windows.go

@@ -431,11 +431,11 @@ func (fd *netFD) shutdown(how int) error {
 	return nil
 }
 
-func (fd *netFD) CloseRead() error {
+func (fd *netFD) closeRead() error {
 	return fd.shutdown(syscall.SHUT_RD)
 }
 
-func (fd *netFD) CloseWrite() error {
+func (fd *netFD) closeWrite() error {
 	return fd.shutdown(syscall.SHUT_WR)
 }
 

src/pkg/net/tcpsock_plan9.go

@@ -32,7 +32,7 @@ func (c *TCPConn) CloseRead() error {
 	if !c.ok() {
 		return syscall.EINVAL
 	}
-	return c.fd.CloseRead()
+	return c.fd.closeRead()
 }
 
 // CloseWrite shuts down the writing side of the TCP connection.
@@ -41,7 +41,7 @@ func (c *TCPConn) CloseWrite() error {
 	if !c.ok() {
 		return syscall.EINVAL
 	}
-	return c.fd.CloseWrite()
+	return c.fd.closeWrite()
 }
 
 // SetLinger sets the behavior of Close() on a connection which still

src/pkg/net/tcpsock_posix.go

@@ -78,7 +78,7 @@ func (c *TCPConn) CloseRead() error {
 	if !c.ok() {
 		return syscall.EINVAL
 	}
-	return c.fd.CloseRead()
+	return c.fd.closeRead()
 }
 
 // CloseWrite shuts down the writing side of the TCP connection.
@@ -87,7 +87,7 @@ func (c *TCPConn) CloseWrite() error {
 	if !c.ok() {
 		return syscall.EINVAL
 	}
-	return c.fd.CloseWrite()
+	return c.fd.closeWrite()
 }
 
 // SetLinger sets the behavior of Close() on a connection which still

src/pkg/net/unixsock_posix.go

@@ -222,7 +222,7 @@ func (c *UnixConn) CloseRead() error {
 	if !c.ok() {
 		return syscall.EINVAL
 	}
-	return c.fd.CloseRead()
+	return c.fd.closeRead()
 }
 
 // CloseWrite shuts down the writing side of the Unix domain connection.
@@ -231,7 +231,7 @@ func (c *UnixConn) CloseWrite() error {
 	if !c.ok() {
 		return syscall.EINVAL
 	}
-	return c.fd.CloseWrite()
+	return c.fd.closeWrite()
 }
 
 // DialUnix connects to the remote address raddr on the network net,