Aktueller Stand

backend/node_modules/effect/dist/esm/Scheduler.js

@@ -0,0 +1,284 @@
+/**
+ * @since 2.0.0
+ */
+import { dual } from "./Function.js";
+import { globalValue } from "./GlobalValue.js";
+import * as core from "./internal/core.js";
+/**
+ * @since 2.0.0
+ * @category utils
+ */
+export class PriorityBuckets {
+  /**
+   * @since 2.0.0
+   */
+  buckets = [];
+  /**
+   * @since 2.0.0
+   */
+  scheduleTask(task, priority) {
+    const length = this.buckets.length;
+    let bucket = undefined;
+    let index = 0;
+    for (; index < length; index++) {
+      if (this.buckets[index][0] <= priority) {
+        bucket = this.buckets[index];
+      } else {
+        break;
+      }
+    }
+    if (bucket && bucket[0] === priority) {
+      bucket[1].push(task);
+    } else if (index === length) {
+      this.buckets.push([priority, [task]]);
+    } else {
+      this.buckets.splice(index, 0, [priority, [task]]);
+    }
+  }
+}
+/**
+ * @since 2.0.0
+ * @category constructors
+ */
+export class MixedScheduler {
+  maxNextTickBeforeTimer;
+  /**
+   * @since 2.0.0
+   */
+  running = false;
+  /**
+   * @since 2.0.0
+   */
+  tasks = /*#__PURE__*/new PriorityBuckets();
+  constructor(
+  /**
+   * @since 2.0.0
+   */
+  maxNextTickBeforeTimer) {
+    this.maxNextTickBeforeTimer = maxNextTickBeforeTimer;
+  }
+  /**
+   * @since 2.0.0
+   */
+  starveInternal(depth) {
+    const tasks = this.tasks.buckets;
+    this.tasks.buckets = [];
+    for (const [_, toRun] of tasks) {
+      for (let i = 0; i < toRun.length; i++) {
+        toRun[i]();
+      }
+    }
+    if (this.tasks.buckets.length === 0) {
+      this.running = false;
+    } else {
+      this.starve(depth);
+    }
+  }
+  /**
+   * @since 2.0.0
+   */
+  starve(depth = 0) {
+    if (depth >= this.maxNextTickBeforeTimer) {
+      setTimeout(() => this.starveInternal(0), 0);
+    } else {
+      Promise.resolve(void 0).then(() => this.starveInternal(depth + 1));
+    }
+  }
+  /**
+   * @since 2.0.0
+   */
+  shouldYield(fiber) {
+    return fiber.currentOpCount > fiber.getFiberRef(core.currentMaxOpsBeforeYield) ? fiber.getFiberRef(core.currentSchedulingPriority) : false;
+  }
+  /**
+   * @since 2.0.0
+   */
+  scheduleTask(task, priority) {
+    this.tasks.scheduleTask(task, priority);
+    if (!this.running) {
+      this.running = true;
+      this.starve();
+    }
+  }
+}
+/**
+ * @since 2.0.0
+ * @category schedulers
+ */
+export const defaultScheduler = /*#__PURE__*/globalValue(/*#__PURE__*/Symbol.for("effect/Scheduler/defaultScheduler"), () => new MixedScheduler(2048));
+/**
+ * @since 2.0.0
+ * @category constructors
+ */
+export class SyncScheduler {
+  /**
+   * @since 2.0.0
+   */
+  tasks = /*#__PURE__*/new PriorityBuckets();
+  /**
+   * @since 2.0.0
+   */
+  deferred = false;
+  /**
+   * @since 2.0.0
+   */
+  scheduleTask(task, priority) {
+    if (this.deferred) {
+      defaultScheduler.scheduleTask(task, priority);
+    } else {
+      this.tasks.scheduleTask(task, priority);
+    }
+  }
+  /**
+   * @since 2.0.0
+   */
+  shouldYield(fiber) {
+    return fiber.currentOpCount > fiber.getFiberRef(core.currentMaxOpsBeforeYield) ? fiber.getFiberRef(core.currentSchedulingPriority) : false;
+  }
+  /**
+   * @since 2.0.0
+   */
+  flush() {
+    while (this.tasks.buckets.length > 0) {
+      const tasks = this.tasks.buckets;
+      this.tasks.buckets = [];
+      for (const [_, toRun] of tasks) {
+        for (let i = 0; i < toRun.length; i++) {
+          toRun[i]();
+        }
+      }
+    }
+    this.deferred = true;
+  }
+}
+/**
+ * @since 2.0.0
+ * @category constructors
+ */
+export class ControlledScheduler {
+  /**
+   * @since 2.0.0
+   */
+  tasks = /*#__PURE__*/new PriorityBuckets();
+  /**
+   * @since 2.0.0
+   */
+  deferred = false;
+  /**
+   * @since 2.0.0
+   */
+  scheduleTask(task, priority) {
+    if (this.deferred) {
+      defaultScheduler.scheduleTask(task, priority);
+    } else {
+      this.tasks.scheduleTask(task, priority);
+    }
+  }
+  /**
+   * @since 2.0.0
+   */
+  shouldYield(fiber) {
+    return fiber.currentOpCount > fiber.getFiberRef(core.currentMaxOpsBeforeYield) ? fiber.getFiberRef(core.currentSchedulingPriority) : false;
+  }
+  /**
+   * @since 2.0.0
+   */
+  step() {
+    const tasks = this.tasks.buckets;
+    this.tasks.buckets = [];
+    for (const [_, toRun] of tasks) {
+      for (let i = 0; i < toRun.length; i++) {
+        toRun[i]();
+      }
+    }
+  }
+}
+/**
+ * @since 2.0.0
+ * @category constructors
+ */
+export const makeMatrix = (...record) => {
+  const index = record.sort(([p0], [p1]) => p0 < p1 ? -1 : p0 > p1 ? 1 : 0);
+  return {
+    shouldYield(fiber) {
+      for (const scheduler of record) {
+        const priority = scheduler[1].shouldYield(fiber);
+        if (priority !== false) {
+          return priority;
+        }
+      }
+      return false;
+    },
+    scheduleTask(task, priority) {
+      let scheduler = undefined;
+      for (const i of index) {
+        if (priority >= i[0]) {
+          scheduler = i[1];
+        } else {
+          return (scheduler ?? defaultScheduler).scheduleTask(task, priority);
+        }
+      }
+      return (scheduler ?? defaultScheduler).scheduleTask(task, priority);
+    }
+  };
+};
+/**
+ * @since 2.0.0
+ * @category utilities
+ */
+export const defaultShouldYield = fiber => {
+  return fiber.currentOpCount > fiber.getFiberRef(core.currentMaxOpsBeforeYield) ? fiber.getFiberRef(core.currentSchedulingPriority) : false;
+};
+/**
+ * @since 2.0.0
+ * @category constructors
+ */
+export const make = (scheduleTask, shouldYield = defaultShouldYield) => ({
+  scheduleTask,
+  shouldYield
+});
+/**
+ * @since 2.0.0
+ * @category constructors
+ */
+export const makeBatched = (callback, shouldYield = defaultShouldYield) => {
+  let running = false;
+  const tasks = new PriorityBuckets();
+  const starveInternal = () => {
+    const tasksToRun = tasks.buckets;
+    tasks.buckets = [];
+    for (const [_, toRun] of tasksToRun) {
+      for (let i = 0; i < toRun.length; i++) {
+        toRun[i]();
+      }
+    }
+    if (tasks.buckets.length === 0) {
+      running = false;
+    } else {
+      starve();
+    }
+  };
+  const starve = () => callback(starveInternal);
+  return make((task, priority) => {
+    tasks.scheduleTask(task, priority);
+    if (!running) {
+      running = true;
+      starve();
+    }
+  }, shouldYield);
+};
+/**
+ * @since 2.0.0
+ * @category constructors
+ */
+export const timer = (ms, shouldYield = defaultShouldYield) => make(task => setTimeout(task, ms), shouldYield);
+/**
+ * @since 2.0.0
+ * @category constructors
+ */
+export const timerBatched = (ms, shouldYield = defaultShouldYield) => makeBatched(task => setTimeout(task, ms), shouldYield);
+/** @internal */
+export const currentScheduler = /*#__PURE__*/globalValue(/*#__PURE__*/Symbol.for("effect/FiberRef/currentScheduler"), () => core.fiberRefUnsafeMake(defaultScheduler));
+/** @internal */
+export const withScheduler = /*#__PURE__*/dual(2, (self, scheduler) => core.fiberRefLocally(self, currentScheduler, scheduler));
+//# sourceMappingURL=Scheduler.js.map