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

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Shutting down and closing a socket

In some distributed applications that communicate over the TCP protocol, there is a need to transfer messages that do not have a fixed size and specific byte sequence, marking its boundary. This means that the receiving side, while reading the message from the socket, cannot determine where the message ends by analyzing the message itself with either its size or its content.

One approach to solve this problem is to structure each message in such a way that it consists of a logical header section and a logical body section. The header section has a fixed size and structure and specifies the size of the body section. This allows the receiving side to first read and parse the header, find out the size of the message ...

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