From 9e0cde2280b79a5929faed2c48425353a08a74ba Mon Sep 17 00:00:00 2001
From: qicosmos <qicosmos@163.com>
Date: Thu, 21 Apr 2022 03:06:57 +0000
Subject: [PATCH 1/3] add header file

---
 include/rest_rpc/rpc_client.hpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/rest_rpc/rpc_client.hpp b/include/rest_rpc/rpc_client.hpp
index 8f6dd4b..8481e42 100644
--- a/include/rest_rpc/rpc_client.hpp
+++ b/include/rest_rpc/rpc_client.hpp
@@ -8,6 +8,7 @@
 #include <future>
 #include <iostream>
 #include <string>
+#include <thread>
 #include <utility>
 
 using namespace rest_rpc::rpc_service;

From 236f14ba8dd75c142fefcb6957b404b01969be8d Mon Sep 17 00:00:00 2001
From: qicosmos <qicosmos@163.com>
Date: Thu, 21 Apr 2022 03:24:42 +0000
Subject: [PATCH 2/3] fix null pointer

---
 include/rest_rpc/rpc_client.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/rest_rpc/rpc_client.hpp b/include/rest_rpc/rpc_client.hpp
index 8481e42..b0563f2 100644
--- a/include/rest_rpc/rpc_client.hpp
+++ b/include/rest_rpc/rpc_client.hpp
@@ -630,7 +630,7 @@ private:
         auto &f = future_map_[req_id];
         if (ec) {
           // LOG<<ec.message();
-          if (!f) {
+          if (f) {
             // std::cout << "invalid req_id" << std::endl;
             f->set_value(req_result{""});
             return;

From ee5fd90770c2469c4ed1a9a3506eddad8f33f181 Mon Sep 17 00:00:00 2001
From: qicosmos <qicosmos@163.com>
Date: Thu, 21 Apr 2022 03:34:47 +0000
Subject: [PATCH 3/3] remove some

---
 include/rest_rpc/rpc_client.hpp | 24 ------------------------
 1 file changed, 24 deletions(-)

diff --git a/include/rest_rpc/rpc_client.hpp b/include/rest_rpc/rpc_client.hpp
index b0563f2..75a4d4a 100644
--- a/include/rest_rpc/rpc_client.hpp
+++ b/include/rest_rpc/rpc_client.hpp
@@ -202,29 +202,6 @@ public:
   bool has_connected() const { return has_connected_; }
 
   // sync call
-#if __cplusplus > 201402L
-  template <size_t TIMEOUT, typename T = void, typename... Args>
-  auto call(const std::string &rpc_name, Args &&...args) {
-    std::future<req_result> future =
-        async_call<FUTURE>(rpc_name, std::forward<Args>(args)...);
-    auto status = future.wait_for(std::chrono::milliseconds(TIMEOUT));
-    if (status == std::future_status::timeout ||
-        status == std::future_status::deferred) {
-      throw std::out_of_range("timeout or deferred");
-    }
-
-    if constexpr (std::is_void_v<T>) {
-      future.get().as();
-    } else {
-      return future.get().template as<T>();
-    }
-  }
-
-  template <typename T = void, typename... Args>
-  auto call(const std::string &rpc_name, Args &&...args) {
-    return call<DEFAULT_TIMEOUT, T>(rpc_name, std::forward<Args>(args)...);
-  }
-#else
   template <size_t TIMEOUT, typename T = void, typename... Args>
   typename std::enable_if<std::is_void<T>::value>::type
   call(const std::string &rpc_name, Args &&...args) {
@@ -272,7 +249,6 @@ public:
   call(const std::string &rpc_name, Args &&...args) {
     return call<DEFAULT_TIMEOUT, T>(rpc_name, std::forward<Args>(args)...);
   }
-#endif
 
   template <CallModel model, typename... Args>
   future_result<req_result> async_call(const std::string &rpc_name,