From a1606fd3b66907d5209932f693041b7a3c470fd1 Mon Sep 17 00:00:00 2001
From: mbandic <marcelb@bitelex.co>
Date: Mon, 31 Mar 2025 12:22:38 +0200
Subject: [PATCH] Await all on no-void return values

---
 lib/asynco.hpp | 20 ++++++++++++++++++++
 test/main.cpp  | 45 ++++++++++++++++++++++++++++++---------------
 2 files changed, 50 insertions(+), 15 deletions(-)

diff --git a/lib/asynco.hpp b/lib/asynco.hpp
index f06a492..6358cb0 100644
--- a/lib/asynco.hpp
+++ b/lib/asynco.hpp
@@ -35,6 +35,26 @@ T await_(future<T>&& r) {
     return move(r).get();
 }
 
+/**
+ * Block until the multiple asynchronous call completes
+ * Use only on no-void calls
+ */
+
+template<typename... F>
+auto await_(F&&... f) -> std::tuple<typename std::decay<decltype(f.get())>::type...> {
+    return std::make_tuple(move(f).get()...);
+}
+
+/**
+ * Block until the multiple asynchronous call completes
+ * Use only on no-void calls
+ */
+
+template<typename... F>
+auto await_(F&... f) -> std::tuple<typename std::decay<decltype(f.get())>::type...> {
+    return std::make_tuple(f.get()...);
+}
+
 /**
  * Block until the asynchronous call completes or time expired
 */
diff --git a/test/main.cpp b/test/main.cpp
index 98defce..18675c7 100644
--- a/test/main.cpp
+++ b/test/main.cpp
@@ -278,24 +278,39 @@ int main () {
 
     // // -------------------------- AWAIT ALL ----------------------------------
 
-    // auto a = async_ ( []() {
-    //     cout << "A" << endl;
-    //     return 3;
-    // });
+    auto a = async_ ( []() {
+        cout << "A" << endl;
+        return 3;
+    });
 
-    // auto b = async_ ( []() {
-    //     cout << "B" << endl;
-    //     throw runtime_error("Test exception");
-    //     return;
-    // });
+    auto b = async_ ( []() {
+        cout << "B" << endl;
+        // throw runtime_error("Test exception");
+        return;
+    });
 
-    // auto c = async_ ( []() {
-    //     cout << "C" << endl;
-    //     return "Hello";
-    // });
+    auto c = async_ ( []() {
+        cout << "C" << endl;
+        return "Hello";
+    });
 
-    // int a_;
-    // string c_;
+    int a_;
+    string c_;
+
+    // auto all = await_(a, c);
+    // cout << get<0>(all) << get<1>(all) << endl;
+
+    // ili
+
+    tie(a_, c_) = await_(a, c);
+    cout << a_ << c_ << endl;
+
+    int d_;
+    float e_;
+    tie(d_, e_) = await_( async_ ( []() {return 1;}), async_ ([](){ return 4.3;}));
+
+    cout << d_ << e_ << endl;
+    
 
     // auto await_all = [&] () {
     //     a_ = await_(a);