Function esp_idf_svc::sys::uxQueueMessagesWaitingFromISR

source ยท 
pub unsafe extern "C" fn uxQueueMessagesWaitingFromISR(
    xQueue: *mut QueueDefinition,
) -> u32
Expand description

A version of uxQueueMessagesWaiting() that can be called from an ISR. Return the number of messages stored in a queue.

@param xQueue A handle to the queue being queried. @return The number of messages available in the queue.