2.10.1 WPAN_MCPS_PurgeReq Function
C
bool WPAN_MCPS_PurgeReq(const uint8_t msduHandle)
Summary
Initiates MCPS-PURGE.request service and have it placed in the MCPS-SAP queue.
Description
This function is used to purge(remove) the data packets from MAC?s internal queue. It initiates MCPS-PURGE.request service and have it placed in the MCPS-SAP queue. The MCPS-PURGE.request primitive allows the next higher layer to purge an MSDU from the transaction queue.
Precondition
WPAN_Init() should have been called before calling this function.
Parameters
Param | Description |
---|---|
msduHandle | Handle of MSDU to be purged |
Returns
true - success; false - buffer not available or queue full.
Example
uint8_t msduHandle = 0; bool retVal = false; retVal = WPAN_MCPS_PurgeReq(msduHandle); if (true != retVal) { printf("buffer not available or queue full"); }
Remarks
On the receipt of WPAN_MCPS_PurgeReq, MAC layer will perform respective operation and asynchronously invokes USR_MCPS_PurgeConf with proper status.