| // Copyright 2021 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 { |
| crate::{ |
| deletion_actor::DeletionActor, file_actor::FileActor, instance_actor::InstanceActor, Args, |
| }, |
| async_trait::async_trait, |
| fidl_fuchsia_hardware_block_partition::Guid, |
| fidl_fuchsia_io as fio, |
| fs_management::{asynchronous::Filesystem, FSConfig}, |
| fuchsia_component::client::connect_to_protocol_at_path, |
| fuchsia_zircon::Vmo, |
| futures::lock::Mutex, |
| rand::{rngs::SmallRng, Rng, SeedableRng}, |
| std::path::PathBuf, |
| std::sync::Arc, |
| std::time::Duration, |
| storage_stress_test_utils::{ |
| data::{Compressibility, FileFactory, UncompressedSize}, |
| fvm::{get_volume_path, FvmInstance}, |
| io::Directory, |
| }, |
| stress_test::{actor::ActorRunner, environment::Environment, random_seed}, |
| }; |
| |
| // All partitions in this test have their type set to this arbitrary GUID. |
| const TYPE_GUID: Guid = Guid { |
| value: [0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf], |
| }; |
| |
| const ONE_MIB: u64 = 1048576; |
| const FOUR_MIB: u64 = 4 * ONE_MIB; |
| |
| const MOUNT_PATH: &str = "/fs"; |
| |
| pub fn open_dir_at_root(subdir: &str) -> Directory { |
| let path = PathBuf::from(MOUNT_PATH).join(subdir); |
| Directory::from_namespace(path, fio::OpenFlags::RIGHT_WRITABLE | fio::OpenFlags::RIGHT_READABLE) |
| .unwrap() |
| } |
| |
| /// Describes the environment that this stress test will run under. |
| pub struct FsEnvironment<FSC: FSConfig> { |
| seed: u64, |
| args: Args, |
| vmo: Vmo, |
| volume_guid: Guid, |
| config: FSC, |
| instance_actor: Arc<Mutex<InstanceActor>>, |
| file_actor: Arc<Mutex<FileActor>>, |
| deletion_actor: Arc<Mutex<DeletionActor>>, |
| } |
| |
| impl<FSC: Clone + FSConfig> FsEnvironment<FSC> { |
| pub async fn new(config: FSC, args: Args) -> Self { |
| // Create the VMO that the ramdisk is backed by |
| let vmo_size = args.ramdisk_block_count * args.ramdisk_block_size; |
| let vmo = Vmo::create(vmo_size).unwrap(); |
| |
| // Initialize the VMO with FVM partition style and a single filesystem partition |
| |
| // Create a ramdisk and setup FVM. |
| let mut fvm = |
| FvmInstance::new(true, &vmo, args.fvm_slice_size, args.ramdisk_block_size).await; |
| |
| // Initialize the filesystem on a new volume |
| let volume_guid = fvm.new_volume("default", TYPE_GUID, fvm.total_slices().await).await; |
| let volume_path = get_volume_path(&volume_guid).await; |
| let node = |
| connect_to_protocol_at_path::<fio::NodeMarker>(volume_path.to_str().unwrap()).unwrap(); |
| let fs = Filesystem::from_node(node, config.clone()); |
| fs.format().await.unwrap(); |
| |
| let instance = fs.serve().await.unwrap(); |
| instance.bind_to_path(MOUNT_PATH).unwrap(); |
| |
| let seed = match args.seed { |
| Some(seed) => seed, |
| None => random_seed(), |
| }; |
| |
| let mut rng = SmallRng::seed_from_u64(seed); |
| |
| // Make a home directory for file actor and deletion actor |
| let root_dir = Directory::from_namespace( |
| MOUNT_PATH, |
| fio::OpenFlags::RIGHT_WRITABLE | fio::OpenFlags::RIGHT_READABLE, |
| ) |
| .unwrap(); |
| root_dir |
| .create_directory( |
| "home1", |
| fio::OpenFlags::RIGHT_WRITABLE | fio::OpenFlags::RIGHT_READABLE, |
| ) |
| .await |
| .unwrap(); |
| |
| let file_actor = { |
| let rng = SmallRng::from_seed(rng.gen()); |
| let uncompressed_size = UncompressedSize::InRange(ONE_MIB, FOUR_MIB); |
| let compressibility = Compressibility::Compressible; |
| let factory = FileFactory::new(rng, uncompressed_size, compressibility); |
| let home_dir = open_dir_at_root("home1"); |
| Arc::new(Mutex::new(FileActor::new(factory, home_dir))) |
| }; |
| let deletion_actor = { |
| let rng = SmallRng::from_seed(rng.gen()); |
| let home_dir = open_dir_at_root("home1"); |
| Arc::new(Mutex::new(DeletionActor::new(rng, home_dir))) |
| }; |
| |
| let instance_actor = Arc::new(Mutex::new(InstanceActor::new(fvm, instance))); |
| |
| Self { seed, args, vmo, volume_guid, file_actor, deletion_actor, instance_actor, config } |
| } |
| } |
| |
| impl<FSC: FSConfig> std::fmt::Debug for FsEnvironment<FSC> { |
| fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { |
| f.debug_struct("Environment").field("seed", &self.seed).field("args", &self.args).finish() |
| } |
| } |
| |
| #[async_trait] |
| impl<FSC: 'static + FSConfig + Clone + Send + Sync> Environment for FsEnvironment<FSC> { |
| fn target_operations(&self) -> Option<u64> { |
| self.args.num_operations |
| } |
| |
| fn timeout_seconds(&self) -> Option<u64> { |
| self.args.time_limit_secs |
| } |
| |
| fn actor_runners(&mut self) -> Vec<ActorRunner> { |
| let mut runners = vec![ |
| ActorRunner::new("file_actor", None, self.file_actor.clone()), |
| ActorRunner::new( |
| "deletion_actor", |
| Some(Duration::from_secs(5)), |
| self.deletion_actor.clone(), |
| ), |
| ]; |
| |
| if let Some(secs) = self.args.disconnect_secs { |
| if secs > 0 { |
| let runner = ActorRunner::new( |
| "instance_actor", |
| Some(Duration::from_secs(secs)), |
| self.instance_actor.clone(), |
| ); |
| runners.push(runner); |
| } |
| } |
| |
| runners |
| } |
| |
| async fn reset(&mut self) { |
| { |
| let mut actor = self.instance_actor.lock().await; |
| |
| // The environment is only reset when the instance is killed. |
| // TODO(72385): Pass the actor error here, so it can be printed out on assert failure. |
| assert!(actor.instance.is_none()); |
| |
| // Create a ramdisk and setup FVM. |
| let fvm = FvmInstance::new( |
| false, |
| &self.vmo, |
| self.args.fvm_slice_size, |
| self.args.ramdisk_block_size, |
| ) |
| .await; |
| let volume_path = get_volume_path(&self.volume_guid).await; |
| let node = |
| connect_to_protocol_at_path::<fio::NodeMarker>(volume_path.to_str().unwrap()) |
| .unwrap(); |
| |
| let fs = Filesystem::from_node(node, self.config.clone()); |
| fs.fsck().await.unwrap(); |
| let instance = fs.serve().await.unwrap(); |
| instance.bind_to_path(MOUNT_PATH).unwrap(); |
| |
| // Replace the fvm and fs instances |
| actor.instance = Some((fvm, instance)); |
| } |
| |
| // Replace the root directory with a new one |
| { |
| let mut actor = self.file_actor.lock().await; |
| actor.home_dir = open_dir_at_root("home1"); |
| } |
| |
| { |
| let mut actor = self.deletion_actor.lock().await; |
| actor.home_dir = open_dir_at_root("home1"); |
| } |
| } |
| } |