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bluetooth discovery: report more information about progress

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We certainly should log errors and the complete list of discovered
devices.

Also, it's good practice to set a specific search time (I picked three
minutes). This way we won't constantly scan and drain resources.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2020-09-29 14:50:05 -07:00
parent ca23147228
commit 5b48585092
2 changed files with 18 additions and 0 deletions
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17
core/btdiscovery.cpp
View file

@ -184,7 +184,15 @@ void BTDiscovery::BTDiscoveryReDiscover()
#if !defined(Q_OS_ANDROID)
if (discoveryAgent == nullptr) {
discoveryAgent = new QBluetoothDeviceDiscoveryAgent(this);
discoveryAgent->setLowEnergyDiscoveryTimeout(3 * 60 * 1000); // search for three minutes
connect(discoveryAgent, &QBluetoothDeviceDiscoveryAgent::deviceDiscovered, this, &BTDiscovery::btDeviceDiscovered);
connect(discoveryAgent, &QBluetoothDeviceDiscoveryAgent::finished, this, &BTDiscovery::btDeviceDiscoveryFinished);
connect(discoveryAgent, &QBluetoothDeviceDiscoveryAgent::canceled, this, &BTDiscovery::btDeviceDiscoveryFinished);
connect(discoveryAgent, QOverload<QBluetoothDeviceDiscoveryAgent::Error>::of(&QBluetoothDeviceDiscoveryAgent::error),
[this](QBluetoothDeviceDiscoveryAgent::Error error){
qDebug() << "device discovery received error" << discoveryAgent->errorString();
});
qDebug() << "discovery methods" << (int)QBluetoothDeviceDiscoveryAgent::supportedDiscoveryMethods();
}
qDebug() << "starting BLE discovery";
discoveryAgent->start();
@ -247,6 +255,15 @@ QString markBLEAddress(const QBluetoothDeviceInfo *device)
return btDeviceAddress(device, isBle);
}
void BTDiscovery::btDeviceDiscoveryFinished()
{
qDebug() << "BT/BLE finished discovery";
QList<QBluetoothDeviceInfo> devList = discoveryAgent->discoveredDevices();
for (QBluetoothDeviceInfo device: devList) {
qDebug() << device.name() << device.address().toString();
}
}
void BTDiscovery::btDeviceDiscovered(const QBluetoothDeviceInfo &device)
{
btPairedDevice this_d;

1
core/btdiscovery.h
View file

@ -43,6 +43,7 @@ public:
int productIdx;
};
void btDeviceDiscoveryFinished();
void btDeviceDiscovered(const QBluetoothDeviceInfo &device);
void btDeviceDiscoveredMain(const btPairedDevice &device, bool fromPaired);
bool btAvailable() const;