Apache NuttX is a mature, real-time embedded operating system (RTOS) https://nuttx.apache.org/

embeddedmcumicrocontrollernuttxreal-timertos

patacongo c121502dd3 Add more low-level, thread-independent socket interfaces ... git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4445 42af7a65-404d-4744-a932-0658087f49c3		2012-03-02 19:57:52 +00:00
arch	Add more low-level, thread-independent socket interfaces	2012-03-02 19:57:52 +00:00