Threads Introduction

Operating System Primitives

• C++ does not implement threads

• They only wrap OS primitives

  • POSIX Threads ⟶ man pthreads

  • Windows ⟶ MSDN

  • Embedded OSen?

There Be Dragons

Threads are the work of the devil!

• Everything that used to be correct in a singlethreaded world is questionable in the face of threads

• Race conditions, even in the most innocent looking places

Corollary:

• A project that was designed without threads in mind is useless with threads

• Multithreading has to be planned from the beginning

• Creation of a new thread must be justified before God

That being said …