ROnce Struct Reference

One-shot initialisation guard. More...

#include <rlib/concurrency/rthreads.h>

Data Fields
rauint	state
rpointer	ret

Detailed Description

One-shot initialisation guard.

Pass the same ROnce instance to every r_call_once call; the supplied init function is invoked at most once across all threads. Subsequent calls return the cached pointer the init function returned, on a fast path with no CAS.

Storage must be either zero-initialised (static / global) or explicitly seeded with R_ONCE_INIT before first use.

Field Documentation

ret

rpointer ROnce::ret

Value returned by the init function.

state

rauint ROnce::state

Current ROnceState (atomic).

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The documentation for this struct was generated from the following file:

• concurrency/rthreads.h