/**
* @page article_atomic Invoking multiple primitives as a single atomic operation
* @{
* It is often necessary to invoke multiple operations involving a
* reschedulation as a single atomic operation.
* ChibiOS/RT already implements APIs that perform complex operations, as
* example the API @p chSemSignalWait() performs two operations atomically.
* If more complex operations are required in your application then it is
* possible to build macro-operations, see the following example:
* @code
chSysLock();
chSemSignalI(&sem1);
chSemSignalI(&sem2);
if (tp != NULL) {
chThdResumeI(tp);
tp = NULL;
}
chSchRescheduleS();
chSysUnlock();
* @endcode
* The above example performs a signal operation on two semaphores, optionally
* resumes a thread, and performs a final reschedulation. The three operations
* are performed atomically.
* An hypotetical @p chSemSignalSignalWait() operation could be implemented as
* follow:
* @code
chSysLock();
chSemSignalI(&sem1);
chSemSignalI(&sem2);
chSemWaitS(&Sem3);
chSchRescheduleS(); /* Because chSemWaitS() might not reschedule internally.*/
chSysUnlock();
* @endcode
* In general multiple I-Class APIs can be included and the block is terminated
* by an S-Class API that performs a reschedulation. Optionally a
* @p chSchRescheduleS() is present at the very end of the block.
*/
/** @} */
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Edimax BR-6578AC V2 base from https://github.com/ulli-kroll/lede.git