Deep Threads Diving into the Core of Concurrent Programming with C

I know this is just about pthreads, but if someone is interested in the topic, Narain Gehani did a lot of work on concurrency in C in the 80s/90s timeframe[1]. Even had a compiler for a language called Concurrent C[2] that didn't gain any traction.

  [1] https://www.semanticscholar.org/paper/Concurrent-C-Gehani-Roome/7b2e2fd8ad69c006d4c51a9b72b8e3f6c40c351d
  [2] https://www.abebooks.com/9780929306001/Concurrent-Programming-Language-Gehani-Narain-0929306007/plp