Add Coroutine::list() (#38)

Author: huangdijia

.gitignore

@@ -2,4 +2,5 @@
 composer.lock
 *.cache
 *.log
-.idea
+.idea
+.bashrc

src/Coroutine.php

@@ -147,4 +147,12 @@ public static function exists(int $id): bool
     {
         return parent::get($id) !== null;
     }
+
+    /**
+     * @return iterable<int>
+     */
+    public static function list(): iterable
+    {
+        yield from array_keys(parent::getAll());
+    }
 }

tests/Cases/CoroutineTest.php

@@ -176,4 +176,22 @@ public function testCoroutineResumeById()
         $this->assertSame(3, $channel->pop());
         $this->assertSame(5, $channel->pop());
     }
+
+    public function testCoroutineList()
+    {
+        $list = Coroutine::list();
+        $this->assertIsIterable($list);
+        $this->assertContains(Coroutine::id(), $list);
+
+        Coroutine::create(function () {
+            sleep(1);
+        });
+        Coroutine::create(function () {
+            sleep(1);
+        });
+        Coroutine::create(function () {
+            sleep(1);
+        });
+        $this->assertEquals(5, iterator_count(Coroutine::list()));
+    }
 }