// 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.

// !!! THIS FILE IS NOT YET USED !!!
// See //zircon/system/public/zircon/syscalls.banjo.
// !!! THIS FILE IS NOT YET USED !!!

library zz;

[Transport="Syscall"]
protocol Handle {
    /// Close a handle.
    [In0="handle:release_always"]
    Close(handle handle) -> (status status);

    /// Close a number of handles.
    CloseMany(vector<handle> handles) -> (status status);

    /// Duplicate a handle.
    [In0="handle:rights=DUPLICATE",
     Out1="handle:acquire"]
    Duplicate(handle handle, rights rights) -> (status status, handle out);

    /// Replace a handle.
    [In0="handle:release_always",
     Out1="handle:acquire"]
    Replace(handle handle, rights rights) -> (status status, handle out);
};