| // 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::{OPEN_RIGHT_READABLE, OPEN_RIGHT_WRITABLE}, |
| fs_management::Minfs, |
| fuchsia_zircon::Vmo, |
| futures::lock::Mutex, |
| rand::{rngs::SmallRng, Rng, SeedableRng}, |
| std::path::PathBuf, |
| std::sync::Arc, |
| storage_stress_test_utils::{ |
| 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], |
| }; |
| |
| // The path to the minfs filesystem in the test's namespace |
| const MINFS_MOUNT_PATH: &str = "/minfs"; |
| |
| pub fn open_dir_at_minfs_root(subdir: &str) -> Directory { |
| let path = PathBuf::from(MINFS_MOUNT_PATH).join(subdir); |
| Directory::from_namespace(path, OPEN_RIGHT_WRITABLE | OPEN_RIGHT_READABLE).unwrap() |
| } |
| |
| /// Describes the environment that this minfs stress test will run under. |
| pub struct MinfsEnvironment { |
| seed: u128, |
| args: Args, |
| vmo: Vmo, |
| volume_guid: Guid, |
| instance_actor: Arc<Mutex<InstanceActor>>, |
| file_actor: Arc<Mutex<FileActor>>, |
| deletion_actor: Arc<Mutex<DeletionActor>>, |
| } |
| |
| impl MinfsEnvironment { |
| pub async fn new(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 minfs partition |
| |
| // Create a ramdisk and setup FVM. |
| let mut fvm = |
| FvmInstance::new(true, &vmo, args.fvm_slice_size, args.ramdisk_block_size).await; |
| |
| // Create a minfs volume |
| let volume_guid = fvm.new_volume("minfs", TYPE_GUID).await; |
| |
| // Find the path to the volume |
| let block_path = fvm.block_path(); |
| let volume_path = get_volume_path(block_path, &volume_guid).await; |
| |
| // Initialize minfs on volume |
| let mut minfs = Minfs::new(volume_path.to_str().unwrap()).unwrap(); |
| minfs.format().unwrap(); |
| minfs.mount(MINFS_MOUNT_PATH).unwrap(); |
| |
| let seed = match args.seed { |
| Some(seed) => seed, |
| None => random_seed(), |
| }; |
| |
| let mut rng = SmallRng::from_seed(seed.to_le_bytes()); |
| |
| // Make a home directory for file actor and deletion actor |
| let root_dir = |
| Directory::from_namespace(MINFS_MOUNT_PATH, OPEN_RIGHT_WRITABLE | OPEN_RIGHT_READABLE) |
| .unwrap(); |
| root_dir |
| .create_directory("home1", OPEN_RIGHT_WRITABLE | OPEN_RIGHT_READABLE) |
| .await |
| .unwrap(); |
| |
| let file_actor = { |
| let rng = SmallRng::from_seed(rng.gen()); |
| let home_dir = open_dir_at_minfs_root("home1"); |
| Arc::new(Mutex::new(FileActor::new(rng, home_dir))) |
| }; |
| let deletion_actor = { |
| let rng = SmallRng::from_seed(rng.gen()); |
| let home_dir = open_dir_at_minfs_root("home1"); |
| Arc::new(Mutex::new(DeletionActor::new(rng, home_dir))) |
| }; |
| |
| let instance_actor = Arc::new(Mutex::new(InstanceActor { fvm, minfs })); |
| |
| Self { seed, args, vmo, volume_guid, file_actor, deletion_actor, instance_actor } |
| } |
| } |
| |
| impl std::fmt::Debug for MinfsEnvironment { |
| 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 Environment for MinfsEnvironment { |
| 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", 0, self.file_actor.clone()), |
| ActorRunner::new("deletion_actor", 5, self.deletion_actor.clone()), |
| ]; |
| |
| if let Some(secs) = self.args.disconnect_secs { |
| if secs > 0 { |
| let runner = ActorRunner::new("instance_actor", secs, self.instance_actor.clone()); |
| runners.push(runner); |
| } |
| } |
| |
| runners |
| } |
| |
| async fn reset(&mut self) { |
| { |
| let mut actor = self.instance_actor.lock().await; |
| |
| // Kill the minfs process in case it was still running |
| let _ = actor.minfs.kill(); |
| |
| // Create a ramdisk and setup FVM. |
| let fvm = FvmInstance::new( |
| false, |
| &self.vmo, |
| self.args.fvm_slice_size, |
| self.args.ramdisk_block_size, |
| ) |
| .await; |
| |
| // Find the path to the volume |
| let block_path = fvm.block_path(); |
| let volume_path = get_volume_path(block_path, &self.volume_guid).await; |
| |
| // Initialize minfs on volume |
| let mut minfs = Minfs::new(volume_path.to_str().unwrap()).unwrap(); |
| |
| // Mount the minfs volume |
| minfs.fsck().unwrap(); |
| minfs.mount(MINFS_MOUNT_PATH).unwrap(); |
| |
| // Replace the fvm and minfs instances |
| actor.fvm = fvm; |
| actor.minfs = minfs; |
| } |
| |
| { |
| // Replace the root directory with a new one |
| let mut actor = self.file_actor.lock().await; |
| actor.home_dir = open_dir_at_minfs_root("home1"); |
| } |
| |
| { |
| // Replace the root directory with a new one |
| let mut actor = self.deletion_actor.lock().await; |
| actor.home_dir = open_dir_at_minfs_root("home1"); |
| } |
| } |
| } |