Package: effect
Module: Pool
Makes a new pool of the specified fixed size.
When to use
Use when you need a fixed-size pool with no growth or shrinkage.
Details
The pool is returned in a Scope, which governs the lifetime of the pool.
When the pool is shutdown because the Scope is closed, the individual
items allocated by the pool will be released in some unspecified order.
By setting the concurrency parameter, you can control the level of concurrent
access per pool item. By default, the number of permits is set to 1.
targetUtilization determines when to create new pool items. It is a value
between 0 and 1, where 1 means only create new pool items when all the existing
items are fully utilized.
A targetUtilization of 0.5 will create new pool items when the existing items are
50% utilized.
See
makeWithTTL for pools with min/max sizes and a TTL-based shrinking policymakeWithStrategy for pools with a custom resizing and reclamation strategySignature
declare const make: <A, E, R>(options: { readonly acquire: Effect.Effect<A, E, R>; readonly size: number; readonly concurrency?: number | undefined; readonly targetUtilization?: number | undefined; }) => Effect.Effect<Pool<A, E>, never, R | Scope.Scope>
Since v2.0.0