Allow posting lambdas and update docs

docs/base-package.md

@@ -14,7 +14,7 @@ These components can be chained as many times as needed, as long as there is one
 
 Note that all components deriving from a single parent will be executed **in the same thread**.
 
-Method calls can be **posted to the event loop** via the `kouta::base::Component::post()` method. This is the core of the event-based architecture, as it allows to defer method execution in a single thread in an efficient manner.
+Method calls can be **posted to the event loop** via the `kouta::base::Component::post()` method. This is the core of the event-based architecture, as it allows to defer method execution in a single thread in an efficient manner. In addition, it is also possible to **post calls to lambdas and free functions**.
 
 A simple component could be:
 
@@ -42,6 +42,9 @@ public:
 // Deferred method call
 comp.post(&MyComponent::print_message, 42);
 comp.post(&MyComponent::print_message, 546);
+comp.post([]() {
+    std::cout << "This is deferred" << std::endl;
+});
 ```
 
 ## Root

include/kouta/base/component.hpp

@@ -69,15 +69,15 @@ namespace kouta::base
         /// @brief Post a function call to the event loop for deferred execution.
         ///
         /// @details
-        /// This allows other components, even those residing in another thread/event loop, to post a functor to this
-        /// specific component, for example a lambda function.
+        /// This allows other components, even those residing in another thread/event loop, to post a function to this
+        /// specific component.
         ///
         /// @warning Arguments are **copied** before being passed to the event loop.
         ///
         /// @tparam TFuncArgs           Types of the arguments that the function accepts.
         /// @tparam TArgs               Types of the arguments provided to the invocation.
         ///
-        /// @param[in] functor          Functor to invoke invoked. Its signature must match `void(TArgs...)`
+        /// @param[in] functor          Functor to invoke. Its signature must match `void(TArgs...)`
         /// @param[in] args             Arguments to invoke the functor with.
         template<class... TFuncArgs, class... TArgs>
         void post(const std::function<void(TFuncArgs...)>& functor, TArgs... args)
@@ -90,6 +90,21 @@ namespace kouta::base
                 });
         }
 
+        /// @brief Post a functor call to the event loop for deferred execution.
+        ///
+        /// @details
+        /// This allows other components, even those residing in another thread/event loop, to post a functor to this
+        /// specific component, for example a lambda.
+        ///
+        /// @tparam TFunctor            Functor type.
+        ///
+        /// @param[in] functor          Functor to invoke.s
+        template<class TFunctor>
+        void post(TFunctor&& functor)
+        {
+            boost::asio::post(context().get_executor(), functor);
+        }
+
     private:
         Component* m_parent;
     };

tests/base/test-base.cpp

@@ -180,7 +180,11 @@ namespace kouta::tests::base
 
         root.post(&RootMock::handler_a, std::uint16_t{42});
         root.post(&RootMock::handler_b, -512, "This is a test");
-        root.post(&RootMock::handler_c, std::vector<std::uint8_t>{12, 34});
+        root.post(
+            [&root]()
+            {
+                root.handler_c(std::vector<std::uint8_t>{12, 34});
+            });
     }
 
     /// @brief Test the behaviour of the event loop when running.