Q_BLUETOOTH_EXPORT jint JNICALL JNI_OnLoad(JavaVM* vm, void* /*reserved*/)
{
typedef union {
JNIEnv *nativeEnvironment;
void *venv;
} UnionJNIEnvToVoid;
UnionJNIEnvToVoid uenv;
uenv.venv = 0;
if (vm->GetEnv(&uenv.venv, JNI_VERSION_1_4) != JNI_OK) {
__android_log_print(ANDROID_LOG_FATAL, logTag, "GetEnv failed");
return -1;
}
JNIEnv *env = uenv.nativeEnvironment;
if (!registerNatives(env)) {
__android_log_print(ANDROID_LOG_FATAL, logTag, "registerNatives failed");
return -1;
}
if (QT_BT_ANDROID().isDebugEnabled())
__android_log_print(ANDROID_LOG_INFO, logTag, "Bluetooth start");
return JNI_VERSION_1_4;
}
void QBluetoothServiceDiscoveryAgentPrivate::_q_processFetchedUuids(
const QBluetoothAddress &address, const QList<QBluetoothUuid> &uuids)
{
//don't leave more data through if we are not interested anymore
if (discoveredDevices.count() == 0)
return;
//could not find any service for the current address/device -> go to next one
if (address.isNull() || uuids.isEmpty()) {
_q_serviceDiscoveryFinished();
return;
}
if (QT_BT_ANDROID().isDebugEnabled()) {
qCDebug(QT_BT_ANDROID) << "Found UUID for" << address.toString()
<< "\ncount: " << uuids.count();
QString result;
for (int i = 0; i<uuids.count(); i++)
result += uuids.at(i).toString() + QStringLiteral("**");
qCDebug(QT_BT_ANDROID) << result;
}
/* In general there are two uuid events per device.
* We'll wait for the second event to arrive before we process the UUIDs.
* We utilize a timeout to catch cases when the second
* event doesn't arrive at all.
* Generally we assume that the second uuid event carries the most up-to-date
* set of uuids and discard the first events results.
*/
if (sdpCache.contains(address)) {
//second event
QPair<QBluetoothDeviceInfo,QList<QBluetoothUuid> > pair = sdpCache.take(address);
//prefer second uuid set over first
populateDiscoveredServices(pair.first, uuids);
if (discoveredDevices.count() == 1 && sdpCache.isEmpty()) {
//last regular uuid data set from OS -> we finish here
_q_serviceDiscoveryFinished();
}
} else {
//first event
QPair<QBluetoothDeviceInfo,QList<QBluetoothUuid> > pair;
pair.first = discoveredDevices.at(0);
pair.second = uuids;
if (pair.first.address() != address)
return;
sdpCache.insert(address, pair);
//the discovery on the last device cannot immediately finish
//we have to grant the 2 seconds timeout delay
if (discoveredDevices.count() == 1) {
Q_Q(QBluetoothServiceDiscoveryAgent);
QTimer::singleShot(4000, q, SLOT(_q_fetchUuidsTimeout()));
return;
}
_q_serviceDiscoveryFinished();
}
}
