blob: 29fecba6c8c01aea8baa792f8ed6a0f036ee1ae2 [file] [log] [blame] [edit]
// Copyright 2015 The Vanadium 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 impl
import (
"v.io/v23/context"
"v.io/x/ref/lib/exec"
"v.io/x/ref/lib/mgmt"
"v.io/x/ref/services/device"
)
// InvokeCallback provides the parent device manager with the given name (which
// is expected to be this device manager's object name).
func InvokeCallback(ctx *context.T, name string) {
config, err := exec.ReadConfigFromOSEnv()
if err != nil || config == nil {
return
}
// Device manager was started by self-update, notify the parent.
callbackName, err := config.Get(mgmt.ParentNameConfigKey)
if err != nil {
// Device manager was not started by self-update, return silently.
return
}
client := device.ConfigClient(callbackName)
ctx, cancel := context.WithTimeout(ctx, rpcContextTimeout)
defer cancel()
if err := client.Set(ctx, mgmt.ChildNameConfigKey, name); err != nil {
ctx.Fatalf("Set(%v, %v) failed: %v", mgmt.ChildNameConfigKey, name, err)
}
}