Struct StorageState 

pub struct StorageState {
    pub next_file_id: u64,
    pub config: StorageConfiguration,
    pub per_process_configs: HashMap<IpAddr, StorageConfiguration>,
    pub disk_episodes: HashMap<IpAddr, DiskDegradationState>,
    pub files: BTreeMap<FileId, StorageFileState>,
    pub path_to_file: BTreeMap<String, FileId>,
    pub deleted_paths: HashSet<String>,
    pub sync_failures: HashSet<(FileId, u64)>,
}

Storage-related state management for the simulation.

Fields

next_file_id: u64

Counter for generating unique file IDs

config: StorageConfiguration

Default storage configuration (used when no per-process config is set)

per_process_configs: HashMap<IpAddr, StorageConfiguration>

Per-process storage configurations, keyed by IP address.

When a file’s owner IP has an entry here, that config is used for fault injection and latency calculations instead of the global default.

disk_episodes: HashMap<IpAddr, DiskDegradationState>

Active disk-degradation episode per owning process IP.

Real disks degrade at the device level: a stall/throttle window applies to every file owned by the process for the episode’s duration, modelling the correlated backpressure a per-file episode cannot (issue #147).

files: BTreeMap<FileId, StorageFileState>

Active files indexed by their ID

path_to_file: BTreeMap<String, FileId>

Mapping from path to file ID for quick lookup

deleted_paths: HashSet<String>

Set of paths that have been deleted (for create_new semantics)

sync_failures: HashSet<(FileId, u64)>

Set of (file_id, op_seq) pairs for sync operations that failed

Implementations

impl StorageState

pub fn new(config: StorageConfiguration) -> Self

Create a new storage state with the given configuration.

pub fn config_for(&self, ip: IpAddr) -> &StorageConfiguration

Resolve storage configuration for a given IP address.

Returns the per-process config if one is set, otherwise the global default.

Trait Implementations

impl Debug for StorageState

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for StorageState

fn default() -> Self

Returns the “default value” for a type.