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Is there a limit on number tasks waiting on Mutex?

Posted by herlien on June 22, 2017

Subject says it all. If too many tasks are waiting on a single Mutex, will the next xSemaphoreTake() fail?


Is there a limit on number tasks waiting on Mutex?

Posted by heinbali01 on June 22, 2017

Other users will correct me if I'm wrong, but within FreeRTOS, the number of waiters for a queue or a mutex is unlimited. Waiters are put into a list, sorted on task priority. FreeRTOS has implemented a list in a very smart way. Every object that is linkable to a list, has a member of the type ListItem_t. This means that attaching or detaching does not need malloc/free. The list-item of an object will be linked into the list.


Is there a limit on number tasks waiting on Mutex?

Posted by rtel on June 22, 2017

That is correct. There is no limit.


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