CppCon 2014 Implementing Wire Protocols with Boost Fusion—Thomas Rodgers

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While we wait for CppCon 2015 in September, we’re featuring videos of some of the 100+ talks from CppCon 2014. Here is today’s feature:

Implementing Wire Protocols with Boost Fusion

Summary of the talk:

There are a number of common serialization formats available which work well for marshaling C++ types into messaging protocols, e.g. ProtoBufs, Thrift, JSON, XML, FIX, etc. Unfortunately, not every protocol uses one of these popular encodings and instead implements a unique binary protocol. The classical "C" way of handling binary protocols is to use packed structs, unfortunately there are many binary protocols which are not particularly friendly to using this approach due to things like nested variable length data structures, etc.. The packed struct approach is also fairly limited in that it only generally supports primitive POD types.

This talk will explore an approach that uses Boost's Fusion library to implement an easily extensible serialization mechanism for on a non-trivial binary financial exchange protocol which exposes the underlying data in terms of "modern" C++ types. The talk will also cover aspects of general use of Boost Fusion and Boost MPL, type traits, enable_if, SFINAE, and other members of the C++ type system bestiary.

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