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node_modules/effect/dist/esm/Pool.js

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+import * as internal from "./internal/pool.js";
+/**
+ * @since 2.0.0
+ * @category symbols
+ */
+export const PoolTypeId = internal.PoolTypeId;
+/**
+ * Returns `true` if the specified value is a `Pool`, `false` otherwise.
+ *
+ * @since 2.0.0
+ * @category refinements
+ */
+export const isPool = internal.isPool;
+/**
+ * Makes a new pool of the specified fixed size. 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.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const make = internal.make;
+/**
+ * Makes a new pool with the specified minimum and maximum sizes and time to
+ * live before a pool whose excess items are not being used will be shrunk
+ * down to the minimum size. The pool is returned in a `Scope`, which governs
+ * the lifetime of the pool. When the pool is shutdown because the `Scope` is
+ * used, 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.
+ *
+ * The `timeToLiveStrategy` determines how items are invalidated. If set to
+ * "creation", then items are invalidated based on their creation time. If set
+ * to "usage", then items are invalidated based on pool usage.
+ *
+ * By default, the `timeToLiveStrategy` is set to "usage".
+ *
+ * ```ts skip-type-checking
+ * import { createConnection } from "mysql2";
+ * import { Duration, Effect, Pool } from "effect"
+ *
+ * const acquireDBConnection = Effect.acquireRelease(
+ *   Effect.sync(() => createConnection('mysql://...')),
+ *   (connection) => Effect.sync(() => connection.end(() => {})),
+ * )
+ *
+ * const connectionPool = Effect.flatMap(
+ *  Pool.makeWithTTL({
+ *     acquire: acquireDBConnection,
+ *     min: 10,
+ *     max: 20,
+ *     timeToLive: Duration.seconds(60)
+ *   }),
+ *   (pool) => pool.get
+ * )
+ * ```
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const makeWithTTL = internal.makeWithTTL;
+/**
+ * Retrieves an item from the pool in a scoped effect. Note that if
+ * acquisition fails, then the returned effect will fail for that same reason.
+ * Retrying a failed acquisition attempt will repeat the acquisition attempt.
+ *
+ * @since 2.0.0
+ * @category getters
+ */
+export const get = internal.get;
+/**
+ * Invalidates the specified item. This will cause the pool to eventually
+ * reallocate the item, although this reallocation may occur lazily rather
+ * than eagerly.
+ *
+ * @since 2.0.0
+ * @category combinators
+ */
+export const invalidate = internal.invalidate;
+//# sourceMappingURL=Pool.js.map