Mutex is an abbreviation for "mutual exclusion". Mutex variables are one of the primary means of implementing thread synchronization and for protecting shared data when multiple writes occur. A mutex ...

This two-part series addresses the use and misuse of two of the most essential synchronization primitives in modern embedded systems, the mutex (this part) and the semaphore (part 2). Mutexes and ...

It shall be safe to destroy an initialized mutex that is unlocked. Attempting to destroy a locked mutex results in undefined behavior. EBUSY The implementation has detected an attempt to destroy the ...

Modern real-time operating systems support multitasking with a priority-based pre-emptive scheduler. Each concurrent task (or "thread") in an application program is assigned a priority number. It is ...