static int64_t OCConvertPresencePayload(OCPresencePayload* payload,
uint8_t* outPayload, size_t* size)
{
CborEncoder encoder = {0};
int64_t err = 0;
cbor_encoder_init(&encoder, outPayload, *size, 0);
CborEncoder rootArray;
err = err | cbor_encoder_create_array(&encoder, &rootArray, 1);
CborEncoder map;
err = err | cbor_encoder_create_map(&rootArray, &map, CborIndefiniteLength);
// Sequence Number
err = err | cbor_encode_text_string(&map,
OC_RSRVD_NONCE,
sizeof(OC_RSRVD_NONCE) - 1);
err = err | cbor_encode_uint(&map, payload->sequenceNumber);
// Max Age
err = err | cbor_encode_text_string(&map,
OC_RSRVD_TTL,
sizeof(OC_RSRVD_TTL) - 1);
err = err | cbor_encode_uint(&map, payload->maxAge);
// Trigger
const char* triggerStr = convertTriggerEnumToString(payload->trigger);
err = err | AddTextStringToMap(&map, OC_RSRVD_TRIGGER, sizeof(OC_RSRVD_TRIGGER) - 1,
triggerStr);
// Resource type name
if(payload->trigger != OC_PRESENCE_TRIGGER_DELETE)
{
err = err | ConditionalAddTextStringToMap(&map, OC_RSRVD_RESOURCE_TYPE,
sizeof(OC_RSRVD_RESOURCE_TYPE) - 1, payload->resourceType);
}
// Close Map
err = err | cbor_encoder_close_container(&rootArray, &map);
err = err | cbor_encoder_close_container(&encoder, &rootArray);
return checkError(err, &encoder, outPayload, size);
}
static OCStackResult OCConvertPresencePayload(OCPresencePayload* payload,
uint8_t** outPayload, size_t* size)
{
*outPayload = (uint8_t*)OICCalloc(1, MAX_REQUEST_LENGTH);
*size = MAX_REQUEST_LENGTH;
if(!*outPayload)
{
return OC_STACK_NO_MEMORY;
}
CborEncoder encoder = {};
bool err = false;
cbor_encoder_init(&encoder, *outPayload, *size, 0);
CborEncoder rootArray;
err = err || cbor_encoder_create_array(&encoder, &rootArray, 2);
err = err || cbor_encode_uint(&rootArray, PAYLOAD_TYPE_PRESENCE);
CborEncoder map;
err = err || cbor_encoder_create_map(&rootArray, &map, CborIndefiniteLength);
// Sequence Number
err = err || cbor_encode_text_string(&map,
OC_RSRVD_NONCE,
sizeof(OC_RSRVD_NONCE) - 1);
err = err || cbor_encode_uint(&map, payload->sequenceNumber);
// Max Age
err = err || cbor_encode_text_string(&map,
OC_RSRVD_TTL,
sizeof(OC_RSRVD_TTL) - 1);
err = err || cbor_encode_uint(&map, payload->maxAge);
// Trigger
const char* triggerStr = convertTriggerEnumToString(payload->trigger);
err = err || AddTextStringToMap(&map, OC_RSRVD_TRIGGER, sizeof(OC_RSRVD_TRIGGER) - 1,
triggerStr);
// Resource type name
if(payload->trigger != OC_PRESENCE_TRIGGER_DELETE)
{
err = err || ConditionalAddTextStringToMap(&map, OC_RSRVD_RESOURCE_TYPE,
sizeof(OC_RSRVD_RESOURCE_TYPE) - 1, payload->resourceType);
}
// Close Map
err = err || cbor_encoder_close_container(&rootArray, &map);
err = err || cbor_encoder_close_container(&encoder, &rootArray);
if(err)
{
OC_LOG_V(ERROR, TAG, "Convert Presence Payload failed with : %d", err);
return OC_STACK_ERROR;
}
*size = encoder.ptr - *outPayload;
uint8_t* tempPayload = (uint8_t*)OICRealloc(*outPayload, *size);
if(!tempPayload)
{
OC_LOG_V(ERROR, TAG, PCF("Payload realloc failed!"));
OICFree(*outPayload);
return OC_STACK_ERROR;
}
*outPayload = tempPayload;
return OC_STACK_OK;
}
