// Copyright 2020 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.

// +build fuchsia

package dispatch

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

type dispatcherKey struct{}

// GetDispatcher returns the dispatcher stored on ctx if it exists; otherwise
// the bool return value will be false.
func GetDispatcher(ctx context.Context) (*Dispatcher, bool) {
	key, ok := ctx.Value(dispatcherKey{}).(*Dispatcher)
	return key, ok
}

// WithDispatcher returns a Context that embeds parent and stores dispatcher.
func WithDispatcher(parent context.Context, dispatcher *Dispatcher) context.Context {
	return context.WithValue(parent, dispatcherKey{}, dispatcher)
}