package ambient-context

You can search for identifiers within the package.

in-package search v0.2.0

ambient-context.atomic
- Ambient_context_atomic
  - Atomic
ambient-context.core
- Ambient_context_core
  - Ambient_context_hmap
  - Types
    
    STORAGE
ambient-context.thread_local
- Ambient_context_thread_local
  - Thread_local
ambient-context.tls
- Ambient_context_tls
  - M
ambient-context.unix
- Ambient_context

Legend:
Library
Module
Module type
Parameter
Class
Class type

Thread/Domain local storage

This allows the creation of global state that is per-domain or per-thread.

type 'a t

val create : unit -> 'a t

Create new storage

val get : 'a t -> 'a option

Get current value

val get_exn : 'a t -> 'a

Like get but fails with an exception

raises Not_found
if no value was found

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

val remove : _ t -> unit

val get_or_create : create:(unit -> 'a) -> 'a t -> 'a

val with_ : 'a t -> 'a -> ('a option -> 'b) -> 'b

with_ var x f sets var to x for this thread, calls f prev where prev is the value currently in var (if any), and then restores the old value of var for this thread.