recursive_mutex
A recursive mutex.
A fiber that already has exclusive ownership of a given recursive_mutex
instance can call lock() or try_lock() to acquire an additional level of
ownership of the mutex. unlock() must be called once for each level of
ownership acquired by a single fiber before ownership can be acquired by another
fiber.
Functions
lock(self)
Locks the mutex.
| This suspending function does not act as an interruption point. |
| This mutex applies dispatch semantics. That means no context switch to other ready fibers will take place if it’s possible to acquire the mutex immediately. |