If a buffer was obtained then a pointer to the obtained buffer is returned.
If a buffer could not be obtained then NULL is returned.
The FreeRTOS_sendto() documentation page contains an example zero copy send operation that includes a call to FreeRTOS_GetUDPPayloadBuffer().
Copyright (C) 2004-2010 Richard Barry. Copyright (C) 2010-2016 Real Time Engineers Ltd.
Any and all data, files, source code, html content and documentation included in the FreeRTOSTM distribution or available on this site are the exclusive property of Real Time Engineers Ltd.. See the files license.txt (included in the distribution) and this copyright notice for more information. FreeRTOSTM and FreeRTOS.orgTM are trade marks of Real Time Engineers Ltd.