Move basicTaskProcessor to default for parallel initialisation components in future

include/cserver/engine/basic/task_processor.hpp

@@ -1,6 +1,5 @@
 #pragma once
-#include <cserver/engine/components.hpp>
-#include <cserver/engine/coroutine.hpp>
+#include <utempl/constexpr_string.hpp>
 #include <boost/asio.hpp>
 
 namespace cserver::engine::basic {
@@ -15,14 +14,6 @@ struct TaskProcessor {
       pool{} {
   };
 
-  template <utempl::ConstexprString name, Options Options, typename T>
-  static consteval auto Adder(const T& context) { 
-    constexpr std::size_t Count = T::kConfig.template Get<name>().template Get<"threadPoolSize">();
-    return context.TransformComponents(
-      [&](const ComponentConfig<name, TaskProcessor<>, Options>&) -> ComponentConfig<name, TaskProcessor<Count>, Options> {
-        return {};
-      });
-  };
   inline constexpr ~TaskProcessor() {
     for(auto& thread : this->pool) {
       thread.join();

include/cserver/engine/components.hpp

@@ -1,8 +1,12 @@
 #pragma once
+#include <cserver/engine/basic/task_processor.hpp>
 #include <utempl/utils.hpp>
 #include <thread>
 
 namespace cserver {
+
+inline constexpr utempl::ConstexprString kBasicTaskProcessorName = "basicTaskProcessor";
+
 struct SeparatedComponent {};
 template <typename... Ts>
 struct Options : utempl::TypeList<Ts...> {};
@@ -64,8 +68,10 @@ struct ServiceContext {
   static constexpr auto kConfig = config;
   static constexpr auto kList = utempl::TypeList<Ts...>{};
   static constexpr auto kThreadsCount = config.template Get<"threads">();
+  engine::basic::TaskProcessor<kThreadsCount> taskProcessor;
   utempl::Tuple<Ts...> storage;
   inline constexpr ServiceContext() :
+      taskProcessor{utempl::Wrapper<utempl::ConstexprString{kBasicTaskProcessorName}>{}, *this},
       storage{
         [&]<auto... Is>(std::index_sequence<Is...>) -> utempl::Tuple<Ts...> {
           return {[&]<auto I>(utempl::Wrapper<I>) {
@@ -89,6 +95,10 @@ struct ServiceContext {
     constexpr auto I = utempl::Find(names, name);
     return Get<I>(this->storage);
   };
+  template <>
+  inline constexpr auto FindComponent<kBasicTaskProcessorName>() -> auto& {
+    return this->taskProcessor;
+  };
   template <typename T>
   inline constexpr auto FindComponent() -> T& {
     constexpr auto I = utempl::Find<std::remove_cvref_t<T>>(utempl::kTypeList<Ts...>);
@@ -159,9 +169,13 @@ struct DependencyInfoInjector {
 private:
   template <utempl::ConstexprString name, utempl::ConstexprString... names, typename... TTs, Options... Options>
   static consteval auto FindComponentTypeImpl(ComponentConfig<names, TTs, Options>...) {
+    if constexpr(name == kBasicTaskProcessorName) {
+      return [] -> engine::basic::TaskProcessor<config.template Get<"threads">()> {}();
+    } else {
       constexpr auto I = utempl::Find(utempl::Tuple{std::string_view{names}...}, std::string_view{name});
       return [] -> decltype(utempl::Get<I>(utempl::TypeList<TTs...>{})) {}();
     };
+  };
 public:
   template <utempl::ConstexprString name>
   using FindComponentType = decltype(FindComponentTypeImpl<name>(Ts{}...));
@@ -187,6 +201,7 @@ public:
   >
   static constexpr auto FindComponent() -> FindComponentType<name>&;
 
+
   template <
     typename T,
     typename...,
@@ -208,9 +223,19 @@ public:
       return utempl::Tuple{};
     } else {
       if constexpr(requires{GetDependencies<I + 1, names...>();}) {
-        return GetDependencies<I + 1, names..., Magic(loopholes::Getter<DependencyInfoKey<Current, I>{}>{})>();
+        constexpr auto name = Magic(loopholes::Getter<DependencyInfoKey<Current, I>{}>{});
+        if constexpr(name == kBasicTaskProcessorName) {
+          return GetDependencies<I + 1, names...>();
         } else {
-        return utempl::Tuple{names..., Magic(loopholes::Getter<DependencyInfoKey<Current, I>{}>{})};
+          return GetDependencies<I + 1, names..., name>();
+        };
+      } else {
+        constexpr auto name = Magic(loopholes::Getter<DependencyInfoKey<Current, I>{}>{});
+        if constexpr(name == kBasicTaskProcessorName) {
+          return utempl::Tuple{names...};
+        } else {
+          return utempl::Tuple{names..., name};
+        };
       };
     };
   };
@@ -339,13 +364,16 @@ struct ServiceContextBuilder {
   };
   template <utempl::ConstexprString name>
   static consteval auto FindComponent() {
+    if constexpr(name == kBasicTaskProcessorName) {
+      return [] -> engine::basic::TaskProcessor<config.template Get<"threads">()> {}();
+    } else {
       return []<typename... TTs, utempl::ConstexprString... names, Options... Options>
       (const ServiceContextBuilder<config, ComponentConfig<names, TTs, Options>...>&) 
           -> decltype(utempl::Get<Find(utempl::Tuple{names...}, name)>(utempl::TypeList<TTs...>{})) {
         std::unreachable();
       }(ServiceContextBuilder<config, ComponentConfigs...>{});
     };
-
+  };
   static consteval auto Config() {
     return config;
   };