void OCFillRandomMem(uint8_t * location, uint16_t len)
{
if (!location)
{
return;
}
for (; len--;)
{
*location++ = OCGetRandomByte();
}
}
void setup() {
Serial.begin(115200);
Serial.println("Testing Random Number generator for Arduino");
Serial.print("Testing OCSeedRandom ... ");
if (OCSeedRandom() == 0) {
Serial.println("[Success]");
} else {
Serial.println("[Fail]");
}
Serial.print("Testing OCGetRandomByte ... ");
uint8_t value8 = OCGetRandomByte();
if (value8 >= 0 && value8 < pow(2, 8)) {
Serial.println("[Success]");
} else {
Serial.println("[Fail]");
}
Serial.print("Testing OCGetRandom ... ");
uint32_t value32 = OCGetRandom();
if (value32 >= 0 && value32 < pow(2, 32)) {
Serial.println("[Success]");
} else {
Serial.println("[Fail]");
}
Serial.print("Testing OCFillRandomMem ... ");
uint8_t array[ARR_SIZE] = {};
OCFillRandomMem(array + 1, ARR_SIZE - 2);
uint8_t overall = 0;
uint8_t value82 = 0;
for (int i = 1; i <= ARR_SIZE - 2; i++) {
value82 = array[i];
if (value82 >= 0 && value82 < pow(2, 8)) {
overall++;
}
}
if (overall == ARR_SIZE - 2 && array[0] == 0 && array[ARR_SIZE - 1] == 0) {
Serial.println("[Success]");
} else {
Serial.println("[Fail]");
Serial.print("overall:");Serial.println(overall);
Serial.print("array[0]:");Serial.println(array[0]);
Serial.print("array[ARR_SIZE - 1]:");Serial.println(array[ARR_SIZE - 1]);
}
Serial.println("========DONE TESTING=========");
}
OCStackResult GenerateObserverId (OCObservationId *observationId)
{
ResourceObserver *resObs = NULL;
OC_LOG(INFO, TAG, PCF("Entering GenerateObserverId"));
VERIFY_NON_NULL (observationId);
do
{
*observationId = OCGetRandomByte();
// Check if observation Id already exists
resObs = GetObserverUsingId (*observationId);
} while (NULL != resObs);
OC_LOG_V(INFO, TAG, "Observation ID is %u", *observationId);
return OC_STACK_OK;
exit:
return OC_STACK_ERROR;
}
