From 888275763feaf537f01c190b23402325ebe1f9da Mon Sep 17 00:00:00 2001
From: azw <vcl_delphi@126.com>
Date: Sat, 19 Aug 2023 00:01:32 +0800
Subject: [PATCH] 1

---
 a8/promise.cc | 12 ++++++++++++
 a8/promise.h  | 14 ++++++++++++--
 2 files changed, 24 insertions(+), 2 deletions(-)
 create mode 100644 a8/promise.cc

diff --git a/a8/promise.cc b/a8/promise.cc
new file mode 100644
index 0000000..4301210
--- /dev/null
+++ b/a8/promise.cc
@@ -0,0 +1,12 @@
+#include <a8/a8.h>
+#include <a8/promise.h>
+
+namespace a8
+{
+
+    void CbPromise::DoAwait()
+    {
+        cb_(Awaiter::shared_from_this());
+    }
+
+}
diff --git a/a8/promise.h b/a8/promise.h
index 3cc4d3e..79bd4ce 100644
--- a/a8/promise.h
+++ b/a8/promise.h
@@ -1,5 +1,7 @@
 #pragma once
 
+#include <a8/awaiter.h>
+
 namespace a8
 {
 
@@ -7,9 +9,17 @@ namespace a8
     {
     };
 
-    class NormalPromise : public Awaiter
+    class CbPromise : public Awaiter
     {
-        std::function<(std::shared_ptr<a8::Awaiter>)> cb;
+    public:
+        CbPromise(std::function<void (std::shared_ptr<a8::Awaiter>)> cb):Awaiter()
+        { cb_ = cb; }
+
+    protected:
+        virtual void DoAwait() override;
+
+    private:
+        std::function<void (std::shared_ptr<a8::Awaiter>)> cb_;
     };
 
 }