blob: e0b1e951f06d31ebc66c9cfbe08d2b667ff3f588 [file] [log] [blame]
// 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.
use {
dir_tree::DirTree, error::ModelError, realm::WeakRealm, routing_fns::route_expose_fn,
directory::{entry::DirectoryEntry, immutable as pfs},
type Directory = Arc<pfs::Simple>;
/// A pseudo-directory that proxies open requests to capabilities that have been exposed
/// by a component in its manifest.
pub struct ExposedDir {
root_dir: Directory,
execution_scope: ExecutionScope,
impl ExposedDir {
/// Creates a new ExposedDir with an explicit execution scope.
pub fn new(
scope: ExecutionScope,
realm: WeakRealm,
decl: ComponentDecl,
) -> Result<Self, ModelError> {
let mut dir = pfs::simple();
let tree = DirTree::build_from_exposes(route_expose_fn, realm.clone(), decl);
tree.install(&realm.moniker, &mut dir)?;
Ok(ExposedDir { root_dir: dir, execution_scope: scope })
/// Opens a new connection to this ExposedDir that is closed once this ExposedDir is dropped.
pub fn open(&self, flags: u32, mode: u32, path: Path, server_end: ServerEnd<NodeMarker>) {
self.root_dir.clone().open(self.execution_scope.clone(), flags, mode, path, server_end);
impl Drop for ExposedDir {
fn drop(&mut self) {
// Explicitly call shutdown to terminate all outstanding requests to
// this pseudo-directory. ExecutionScope is ref-counted so we can't rely
// on its drop impl to clean things up at this point.