July 15, 2025 · 696 words · 4 minIn modern C++ development, coroutines have brought revolutionary changes to asynchronous programming. Core SolutionOur solution is based on asio::async_initiate , which provides perfect integration with the asio coroutine system while avoiding the problem of blocking IO threads. Thread Pool Designasio :: thread_pool blocking_pool( 4 );Dedicated to handling blocking operationsAvoids blocking IO threadsThread count can be adjusted as needed3. Executor Context Preservationauto executor = asio :: get_associated_executor(handler); // ... asio :: post(executor, [handler = std :: move(handler), result = std :: move(result)]() mutable { handler(std :: move(result)); });Ensures that the final handler call occurs in the correct executor context, maintaining asio’s executor semantics. This approach not only avoids blocking IO threads but also provides perfect exception handling mechanisms, making it one of the best practices for modern C++ asynchronous programming.