Embedded Linux Conference & OpenIoT Summit North America 2018

With the rise of IoT, came the resurgence of constrained devices: some restrictions have not been seen since the 1980s. There has been a lot of work done on Linux and other OSes small, but we will fall short of footprint requirements if we keep designing libraries like we have been for PCs and mobile phones. This session will review the motivations for having TinyCBOR in the first place and why use of a protocol designed for constrained systems is superior to more traditional solutions like JSON. Then it will talk about the design of the library itself and how the author achieved a modular and yet space-efficient approach. Topics will include parsing without memory allocation, zero-copy data access and coding for space. Most of the session will be dedicated to that last topic and will deep-dive into iterating the design, tools and even what to look for in assembly listings.