1 files changed, 47 insertions, 0 deletions
diff --git a/examples/03-scheduler/index.ts b/examples/03-scheduler/index.ts
new file mode 100644
index 0000000..40268fc
--- /dev/null
+++ b/examples/03-scheduler/index.ts
@@ -0,0 +1,47 @@
+import CancellationToken from 'cancellationtoken'
+
+class Scheduler {
+  private readonly _tasksAndTokens: {task: Task; token: CancellationToken}[]
+
+  public constructor() {
+    this._tasksAndTokens = []
+    this._executeNextTask()
+  }
+
+  private _executeNextTask(): void {
+    setTimeout(() => this._executeNextTask(), 1000)
+    let nextTask: Task | undefined
+    while (!nextTask && this._tasksAndTokens.length > 0) {
+      const {task, token} = this._tasksAndTokens.shift()!
+      if (!token.isCancelled) {
+        nextTask = task
+      }
+    }
+    if (nextTask) {
+      setTimeout(nextTask, 0)
+    }
+  }
+
+  public schedule(task: Task, token: CancellationToken = CancellationToken.CONTINUE): void {
+    this._tasksAndTokens.push({task, token})
+  }
+}
+
+interface Task {
+  (): void
+}
+
+const scheduler = new Scheduler()
+const {cancel, token} = CancellationToken.create()
+scheduler.schedule(task1)
+scheduler.schedule(task2, token)
+scheduler.schedule(() => process.exit(0))
+
+function task1() {
+  console.log('yay! (:')
+  cancel()
+}
+
+function task2() {
+  throw new Error('nay! ):')
+}