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core/BLE: provide state and error updates during BLE discovery

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This simply helps us see some possible errors while trying to talk to a device.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2020-08-21 15:47:10 -07:00
parent c87e028602
commit f74328df0b
1 changed files with 11 additions and 1 deletions
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12
core/qt-ble.cpp
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@ -215,8 +215,16 @@ void BLEObject::addService(const QBluetoothUuid &newService)
auto service = controller->createServiceObject(newService, this); auto service = controller->createServiceObject(newService, this);
if (service) { if (service) {
qDebug() << " .. starting discovery"; // provide some visibility into what's happening in the log
service->connect(service, &QLowEnergyService::stateChanged,[=](QLowEnergyService::ServiceState newState) {
qDebug() << " .. service state changed to" << newState;
});
service->connect(service, QOverload<QLowEnergyService::ServiceError>::of(&QLowEnergyService::error),
[=](QLowEnergyService::ServiceError newError) {
qDebug() << "error discovering service details" << newError;
});
services.append(service); services.append(service);
qDebug() << "starting service characteristics discovery";
service->discoverDetails(); service->discoverDetails();
} }
} }
@ -360,6 +368,8 @@ dc_status_t BLEObject::select_preferred_service(void)
// Wait for each service to finish discovering // Wait for each service to finish discovering
foreach (const QLowEnergyService *s, services) { foreach (const QLowEnergyService *s, services) {
WAITFOR(s->state() != QLowEnergyService::DiscoveringServices, BLE_TIMEOUT); WAITFOR(s->state() != QLowEnergyService::DiscoveringServices, BLE_TIMEOUT);
if (s->state() == QLowEnergyService::DiscoveringServices)
qDebug() << " .. service " << s->serviceUuid() << "still hasn't completed discovery - trouble ahead";
} }
// Print out the services for debugging // Print out the services for debugging