package moonpool

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Local Hmap.t

moonpool
- Moonpool
moonpool.dpool
- Moonpool_dpool
moonpool.fib
- Moonpool_fib
  - Fiber
  - Fls
  - Handle
    
    Map
    
    Set
  - Main
moonpool.forkjoin
- Moonpool_forkjoin
moonpool.private
- Moonpool_private
  - Atomic_
  - Domain_
  - Tracing_
  - Ws_deque_
moonpool.sync
- Moonpool_sync
  - Event
    
    Infix
  - Lock

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Task-local storage.

This storage is associated to the current task, just like thread-local storage is associated with the current thread. The storage is carried along in case the current task is suspended.

since 0.6

type 'a t = 'a Picos.Fiber.FLS.t

val create : unit -> 'a t

create () makes a new key. Keys are expensive and should never be allocated dynamically or in a loop.

exception Not_set

val get_exn : 'a t -> 'a

get k gets the value for the current task for key k. Must be run from inside a task running on a runner.

raises Not_set
otherwise

val get_opt : 'a t -> 'a option

get_opt k gets the current task's value for key k, or None if not run from inside the task.

val get : 'a t -> default:'a -> 'a

val set : 'a t -> 'a -> unit

set k v sets the storage for k to v. Must be run from inside a task running on a runner.

raises Failure
otherwise

val with_value : 'a t -> 'a -> (unit -> 'b) -> 'b

with_value k v f sets k to v for the duration of the call to f(). When f() returns (or fails), k is restored to its old value.

Local `Hmap.t`

This requires hmap to be installed.

package moonpool

Local Hmap.t

Local `Hmap.t`