src/syscall/zx/fdio/client.go

// Copyright 2018 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.

// Go's distribution tools attempt to compile everything; this file
// depends on types that don't compile in not-Fuchsia.
// +build fuchsia

package fdio

import (
	"syscall/zx"
	"syscall/zx/fidl"
	"syscall/zx/internal/context"
	"syscall/zx/io"
)

func ServiceConnect(svcpath string, h zx.Handle) error {
	// Otherwise attempt to connect through the root namespace.
	ns, err := NewNSFromMap(zx.RootNSMap)
	if err == nil {
		return ns.Connect(svcpath, h)
	}
	h.Close()
	return &zx.Error{Status: zx.ErrNotFound, Text: "fdio.ServiceConnect"}
}

func ServiceConnectAt(dir zx.Handle, path string, h zx.Handle) error {
	if !dir.IsValid() || !h.IsValid() {
		return &zx.Error{Status: zx.ErrInvalidArgs, Text: "fdio.ServiceConnectAt"}
	}
	// Open the path on the remote.
	iface := (*io.DirectoryWithCtxInterface)(&fidl.ChannelProxy{Channel: zx.Channel(dir)})
	req := io.NodeWithCtxInterfaceRequest(fidl.InterfaceRequest{Channel: zx.Channel(h)})
	err := iface.Open(context.Background(), io.OpenRightReadable|io.OpenRightWritable, 0755, path, req)
	if err != nil {
		h.Close()
		return err
	}
	return nil
}