Struct TaskRetentionLimits 

#[non_exhaustive]
pub struct TaskRetentionLimits {
    pub max_tasks: usize,
    pub max_payload_bytes: usize,
    pub max_retained_bytes: usize,
}

Byte and record limits for MemoryTaskStore.

Defaults are deliberately finite: 1,024 retained task records, 4 MiB for any one accepted identity, arguments, metadata, input, status-message, result, or error payload, and 64 MiB of aggregate retained payload charge. Use unbounded only when a host provides an equivalent bound outside this store.

Byte sizes are the compact JSON encoding produced by serde_json. The aggregate charge covers the retained tool name, owner, arguments, metadata, status message, input requests and their spent keys, accumulated input responses, result, and structured error. It deliberately excludes HashMap allocation overhead and fixed lifecycle machinery such as IDs, timestamps, cancellation tokens, and waiter handles; the task-count limit bounds that fixed per-record overhead.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

max_tasks: usize

Maximum task records physically retained, including expired tombstones.

max_payload_bytes: usize

Maximum compact-JSON bytes for one accepted payload.

max_retained_bytes: usize

Maximum aggregate retained and reserved compact-JSON bytes.

Implementations

impl TaskRetentionLimits

pub fn new() -> Self

Create the default finite retention policy.

pub const fn unbounded() -> Self

Disable the in-memory store’s count and byte limits.

Prefer the finite Default unless another layer enforces equivalent process-memory limits.

pub const fn max_tasks(self, max: usize) -> Self

Set the maximum number of physically retained task records.

pub const fn max_payload_bytes(self, max: usize) -> Self

Set the compact-JSON limit for one accepted payload.

pub const fn max_retained_bytes(self, max: usize) -> Self

Set the aggregate retained-and-reserved compact-JSON byte limit.

Trait Implementations

impl Clone for TaskRetentionLimits

fn clone(&self) -> TaskRetentionLimits

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for TaskRetentionLimits

impl Debug for TaskRetentionLimits

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

Formats the value using the given formatter.

impl Default for TaskRetentionLimits

fn default() -> Self

Returns the “default value” for a type.

impl Eq for TaskRetentionLimits

impl PartialEq for TaskRetentionLimits

fn eq(&self, other: &TaskRetentionLimits) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for TaskRetentionLimits