src/storage/block_adapter/src/main.rs

// Copyright 2022 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.

use {
    anyhow::{anyhow, Error},
    fidl::endpoints::ClientEnd,
    fidl_fuchsia_hardware_block as fhardware_block, fuchsia_async as fasync,
    fuchsia_runtime::HandleType,
    fuchsia_zircon as zx,
};

#[fasync::run_singlethreaded]
async fn main() -> Result<(), Error> {
    let mut args = std::env::args();
    let name = args.next().ok_or(anyhow!("no arguments provided"))?;
    let binary = args.next().ok_or(anyhow!("{} invoked without path to child binary", name))?;
    let return_code = block_adapter::run(
        ClientEnd::<fhardware_block::BlockMarker>::from(zx::Channel::from(
            fuchsia_runtime::take_startup_handle(fuchsia_runtime::HandleInfo::new(
                HandleType::User0,
                1,
            ))
            .ok_or(anyhow!("missing device handle"))?,
        ))
        .into_proxy()?,
        &binary,
        args,
    )
    .await?
    .try_into()?;
    std::process::exit(return_code);
}