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

embeddedmcumicrocontrollernuttxreal-timertos

patacongo fdacfae6e4 Correct and error in recv() and recvfrom() return value ... git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4402 42af7a65-404d-4744-a932-0658087f49c3		2012-02-18 18:13:30 +00:00
Documentation	Correct and error in recv() and recvfrom() return value	2012-02-18 18:13:30 +00:00