src/devices/tools/fidlgen_banjo/tests/fidl/callback.test.fidl

// Copyright 2018 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
library banjo.examples.callback;

using banjo.examples.callback2;
using zx;

type Point = struct {
    x int32;
    y int32;
};

type Direction = strict enum : uint32 {
    Up = 0;
    Down = 1;
    Left = 2;
    Right = 3;
};

@transport("Banjo")
@banjo_layout("ddk-callback")
protocol Draw {
    Callback(struct {
        p Point;
        d Direction;
    }) -> ();
};

@transport("Banjo")
@banjo_layout("ddk-protocol")
protocol Drawing {
    RegisterCallback(resource struct {
        cb client_end:Draw;
    }) -> ();
    DeregisterCallback() -> ();
    RegisterCallback2(resource struct {
        cb client_end:banjo.examples.callback2.DrawCallback;
    }) -> ();
    DrawLots(resource struct {
        commands zx.handle:VMO;
    }) -> (struct {
        result int32;
        p Point;
    });
    DrawArray(struct {
        points array<Point, 4>;
    }) -> (struct {
        rv zx.status;
    });
    Describe(struct {
        one string:64;
    }) -> (struct {
        two string:128;
    });
};