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node_modules/effect/dist/cjs/Pool.js

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+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.makeWithTTL = exports.make = exports.isPool = exports.invalidate = exports.get = exports.PoolTypeId = void 0;
+var internal = _interopRequireWildcard(require("./internal/pool.js"));
+function _interopRequireWildcard(e, t) { if ("function" == typeof WeakMap) var r = new WeakMap(), n = new WeakMap(); return (_interopRequireWildcard = function (e, t) { if (!t && e && e.__esModule) return e; var o, i, f = { __proto__: null, default: e }; if (null === e || "object" != typeof e && "function" != typeof e) return f; if (o = t ? n : r) { if (o.has(e)) return o.get(e); o.set(e, f); } for (const t in e) "default" !== t && {}.hasOwnProperty.call(e, t) && ((i = (o = Object.defineProperty) && Object.getOwnPropertyDescriptor(e, t)) && (i.get || i.set) ? o(f, t, i) : f[t] = e[t]); return f; })(e, t); }
+/**
+ * @since 2.0.0
+ * @category symbols
+ */
+const PoolTypeId = exports.PoolTypeId = internal.PoolTypeId;
+/**
+ * Returns `true` if the specified value is a `Pool`, `false` otherwise.
+ *
+ * @since 2.0.0
+ * @category refinements
+ */
+const isPool = exports.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
+ */
+const make = exports.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
+ */
+const makeWithTTL = exports.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
+ */
+const get = exports.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
+ */
+const invalidate = exports.invalidate = internal.invalidate;
+//# sourceMappingURL=Pool.js.map