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

// Copyright 2019 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.passcallback;

using zx;

type Point = struct {
    x int64;
    y int64;
};

type Direction = strict enum : uint8 {
    UP = 1;
    DOWN = 2;
    LEFT = 3;
    RIGHT = 4;
};

type Action = strict enum : uint32 {
    START = 0x1;
    STOP = 0x2;
};

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

@transport("Banjo")
@banjo_layout("ddk-protocol")
protocol ActionProtocol {
    RegisterCallback(resource struct {
        id uint32;
        cb client_end:ActionNotify;
    }) -> (struct {
        s zx.status;
    });
    GetCallback(struct {
        id uint32;
    }) -> (resource struct {
        s zx.status;
        cb client_end:ActionNotify;
    });
};