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[FreeRTOS Home] [Live FreeRTOS Forum] [FAQ] [Archive Top] [August 2006 Threads] post/receive multiple items to/from a queuePosted by Nobody/Anonymous on August 28, 2006 Hi there,
Does anyone out there feel the need to post/retrieve multiple items from a queue in one call? If you get items one by one, a lot of overhead is generated. It would be much more efficient to call the memcpy in prvCopyQueueData() only once. For the receiving case I would like to propose a function which blocks the calling task until the number of requested items are received, or exits after the specified number of timeout ticks.
If a timeout occurs, the function can either return nothing or the items which have been retrieved.
Paul
RE: post/receive multiple items to/from a queuePosted by Nobody/Anonymous on August 28, 2006 How about having the code stuffing data into the queue use larger number of bytes? It puts in a whole structure at a time for example, rather than one byte at a time.
RE: post/receive multiple items to/from a quePosted by Nobody/Anonymous on August 29, 2006 That's easy: call xQueueCreate with as 2nd argument the size of your struct. xQueueSend and xQueueReceive accept a pointer to the base of your struct variable
My problem is how to post a variable number or items.
Paul
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