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C++ Coroutines Advanced: Converting std:future to asio:awaitable
In modern C++ development, coroutines have brought revolutionary changes to asynchronous programming. However, when using boost::asio or standalone asio, we often encounter scenarios where we need to convert traditional std::future<T> to asio::awaitable<T>. This article will detail an efficient, thread-safe conversion method.
Need to call third-party libraries that return std::future(such as database drivers) Want to use co_await in coroutines to handle these asynchronous operations Don’t want to block IO threads, maintaining high performance Database Operations: Converting database driver async interfaces to coroutine-friendly forms File I/O: Handling potentially blocking file operations Third-Party Library Integration: Integrating with libraries that return std::future CPU-Intensive Tasks: Converting CPU-intensive tasks to awaitable forms 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.
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