Simple

S.I.M.P.L.E.

<b>S</b>mart <b>I</b>ntuitive <b>M</b>essaging <b>P</b>latform with <b>L</b>ess <b>E</b>ffort.

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S.I.M.P.L.E. (or just simple) is a cross-platform C++ library to easily exchange data across a network.
It is built on top of ZeroMQ and uses custom FlatBuffers messages.
It provides a clean interface to the classic Publisher-Subscriber and Request-Reply patterns.

simple can be used on Windows, Linux and OSX.

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Dependencies

• A C++11 compiler (tested on gcc-5, clang-3.8, msvc14 and msvc15.)
• CMake 3.3+
• ZeroMQ 4.2.4+
• cppzmq 4.3.1+
• FlatBuffers 1.9.0+

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What can I send/receive?

simple offers a light interface to FlatBuffers messages.
Common messages are provided and live under simple_msgs.
New messages can be defined - in the simple_msgs format - and sent/received using the same interface.

Usage

<b>Install the binaries</b>
<b>Build from source:</b> on Windows or Linux/Mac OSX.
<b>Use in your C++ project:</b> via CMake. We suggest Windows users to link to the static version of simple.

Publisher / Subscriber

• A Publisher sends (publishes) data to any Subscriber that is listening to its IP address/port.
• A Subscriber waits for new data from a Publisher and asynchrounsly receives it.
  An example of the Publisher/Subscriber pattern in C++ is available here.

Request / Reply

• A Client sends a request to an IP address/port of a Server and expects a reply from it.
• A Server waits for requests and asynchrounsly replies to a Client.
  An example of the Client/Server pattern in C++ is available here.

Inspiration from ROS

We are heavy (and happy) ROS users and we aim to provide a very similar interface.

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Contacts

Chair for Computer Aided Medical Procedures
Technical University of Munich, Germany.

<b>Salvatore Virga</b>> : salvo.virga@tum.de
<b>Fernanda Levy Langsch</b> : fernanda.langsch@tum.de

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License

simple is distributed under the MPL v2.0 License. See LICENSE for details.