Boost.Asio C++ Network Programming Cookbook by Dmytro Radchuk

By Dmytro Radchuk

Beginning with recipes demonstrating the execution of easy Boost.Asio operations, the e-book is going directly to offer ready-to-use implementations of purchaser and server functions from basic synchronous ones to strong multithreaded scalable suggestions. ultimately, you're provided with complex subject matters corresponding to imposing a talk software, imposing an HTTP consumer, and including SSL help. the entire samples offered within the booklet are able to be utilized in genuine tasks simply out of the box.

As good as very good sensible examples, the publication additionally contains prolonged supportive theoretical fabric on allotted software layout and construction.

What you'll learn:
- strengthen your operating wisdom of 1 of the main respected C++ networking libraries―Boost.Asio
- get yourself up to speed with the fundamentals of TCP and UDP protocols
- Create scalable and highly-efficient consumer and server applications
- comprehend the idea at the back of improvement of allotted applications
- elevate the safety of your dispensed purposes through including SSL support
- enforce a HTTP purchaser easily
- Use iostreams, scatter-gather buffers, and timers

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Additional resources for Boost.Asio C++ Network Programming Cookbook

Example text

In step 2, we create an object of the asio::ip::tcp::endpoint class designating the target server application to which we are going to connect. Then, in step 3 an active socket is instantiated and opened. In step 4, we call the socket's connect() method, passing an endpoint object designating the target server to it as an argument. This function connects the socket to the server. The connection is performed synchronously, which means that the method blocks the caller thread until either the connection operation is established or an error occurs.

The results of asynchronous operations are passed to the callback as arguments. 40 Chapter 2 Additional operations In addition to this, we are going to consider such operations as canceling asynchronous operations, shutting down, and closing a socket. The ability to cancel a previously initiated asynchronous operation is very important. It allows the application to state that the previously initiated operation is not relevant anymore, which may save the application's resources (both CPU and memory), that otherwise (in case, the operation would continue its execution even after it was known that nobody is interested in it anymore) would be unavoidably wasted.

3. Create and open an active socket. 4. Call the socket's connect() method specifying the endpoint object created in step 2 as an argument. 5. If the method succeeds, the socket is considered connected and can be used to send and receive data to and from the server. hpp> #include using namespace boost; int main() { // Step 1. Assume that the client application has already // obtained the IP address and protocol port number of the // target server. 1"; unsigned short port_num = 3333; try { // Step 2.

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