P is a language for asynchronous event-driven programming. P allows the programmer to specify the system as a collection of interacting state machines, which communicate with each other using events. P unifies modeling and programming into one activity for the programmer. Not only can a P program be compiled into executable code, but it can also be validated using systematic testing. P has been used to implement and validate the USB device driver stack that ships with Microsoft Windows 8 and Windows Phone. P is also suitable for the design and implementation of networked, embedded, and distributed systems.
Check the P manual.
Information for building P framework is available here.
See fun demo video using P to control a quadrocopter and make sense of the MavLink stream, all visualized in a live DGML diagram.
We built DRONA, a software framework for distributed mobile robotics systems. DRONA uses P language for implementing and model-checking the distributed robotics software stack (wiki). The C code generated from P compiler can be easily deployed on Robot Operating System (ROS). More details about the DRONA framework and simulation videos are available here: https://drona-org.github.io/Drona/
We are working on using the DRONA framework for building real-world drone applications using PX4 and extending DRONA with runtime monitoring capabilities for reliability. Details about these extensions will be posted soon.
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P: Safe asynchronous event-driven programming. Ankush Desai, Vivek Gupta, Ethan Jackson, Shaz Qadeer, Sriram Rajamani, and Damien Zufferey. In Proceedings of ACM SIGPLAN Conference on Programming Language Design and Implementation (PLDI), 2013.
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Systematic testing of asynchronous reactive systems. Ankush Desai, Shaz Qadeer, and Sanjit A. Seshia. In Proceedings of the 2015 10th Joint Meeting on Foundations of Software Engineering (ESEC/FSE 2015).
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DRONA: A Framework for Safe Distributed Mobile Robotics. Ankush Desai, Indranil Saha, Jianqiao Yang, Shaz Qadeer, and Sanjit A. Seshia. In Proceedings of the 8th ACM/IEEE International Conference on Cyber-Physical Systems (ICCPS), 2017.
- TechWorld[2016]: Microsoft open-sources P language for IoT
- InfoQ[2016]: Microsoft Open-Sources P Language for Safe Async Event-Driven Programming
- Reddit[2016]: Microsoft opensources P language
- Microsoft Blog[2011]: Building robust USB 3.0 support