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.


new() → recursive_mutex



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.

try_lock(self) → boolean

Tries to lock the mutex. Returns whether lock acquisition was successful.

The current fiber is never suspended.


Unlocks the mutex.