Function esp_idf_svc::sys::xQueuePeekFromISR

pub unsafe extern "C" fn xQueuePeekFromISR(
    xQueue: *mut QueueDefinition,
    pvBuffer: *mut c_void,
) -> i32

A version of xQueuePeek() that can be called from an interrupt service routine (ISR).

Receive an item from a queue without removing the item from the queue. The item is received by copy so a buffer of adequate size must be provided. The number of bytes copied into the buffer was defined when the queue was created.

Successfully received items remain on the queue so will be returned again by the next call, or a call to xQueueReceive().

@param xQueue The handle to the queue from which the item is to be received.

@param pvBuffer Pointer to the buffer into which the received item will be copied.

@return pdTRUE if an item was successfully received from the queue, otherwise pdFALSE.

\ingroup QueueManagement