Struct BackendOptions 

pub struct BackendOptions {
    pub dependency_tracking: bool,
    pub active_tracking: bool,
    pub storage_mode: Option<StorageMode>,
    pub num_workers: Option<usize>,
    pub small_preallocation: bool,
    pub eviction_mode: EvictionMode,
    pub gc: Option<bool>,
    pub gc_root_ttl: Option<Duration>,
    pub gc_min_progress: Option<Duration>,
}

Fields

dependency_tracking: bool

Enables dependency tracking.

When disabled: No state changes are allowed. Tasks will never reexecute and stay cached forever.

active_tracking: bool

Enables active tracking.

Automatically disabled when dependency_tracking is disabled.

When disabled: All tasks are considered as active.

storage_mode: Option<StorageMode>

Enables the backing storage.

num_workers: Option<usize>

Number of tokio worker threads. It will be used to compute the shard amount of parallel datastructures. If None, it will use the available parallelism.

small_preallocation: bool

Avoid big preallocations for faster startup. Should only be used for testing purposes.

eviction_mode: EvictionMode

Strategy for evicting evictable tasks from in-memory storage after a snapshot. This reclaims memory by clearing persisted data that can be re-loaded from disk on demand.

gc: Option<bool>

Overrides whether the reference-counting GC runs for this backend. None (default) derives it from the TURBO_ENGINE_GC env var;

gc_root_ttl: Option<Duration>

Overrides how long a GC root may go un-anchored before it ages out. None (default) derives it from the TURBO_ENGINE_GC_ROOT_TTL_MS env var, falling back to [DEFAULT_GC_ROOT_TTL].

gc_min_progress: Option<Duration>

Overrides how long a GC pass runs before it will honour an interrupt.

Trait Implementations

impl Default for BackendOptions

fn default() -> Self

Returns the “default value” for a type.