private List<List<ResultStorageDescriptor>> mResultStorages;
// mLeHandle 0: not registered
+ // -2: registration failed because app is scanning to frequently
// -1: scan stopped or registration failed
// > 0: registered and scan started
private int mScannerId;
public void startRegistration() {
synchronized (this) {
// Scan stopped.
- if (mScannerId == -1) return;
+ if (mScannerId == -1 || mScannerId == -2) return;
try {
mBluetoothGatt.registerScanner(this, mWorkSource);
wait(REGISTRATION_CALLBACK_TIMEOUT_MILLIS);
// Registration timed out or got exception, reset scannerId to -1 so no
// subsequent operations can proceed.
if (mScannerId == 0) mScannerId = -1;
+
+ // If scanning too frequently, don't report anything to the app.
+ if (mScannerId == -2) return;
+
postCallbackError(mScanCallback,
ScanCallback.SCAN_FAILED_APPLICATION_REGISTRATION_FAILED);
}
Log.e(TAG, "fail to start le scan: " + e);
mScannerId = -1;
}
+ } else if (status == ScanCallback.SCAN_FAILED_SCANNING_TOO_FREQUENTLY) {
+ // applicaiton was scanning too frequently
+ mScannerId = -2;
} else {
// registration failed
mScannerId = -1;
*/
public static final int SCAN_FAILED_OUT_OF_HARDWARE_RESOURCES = 5;
+ /**
+ * Fails to start scan as application tries to scan too frequently.
+ * @hide
+ */
+ public static final int SCAN_FAILED_SCANNING_TOO_FREQUENTLY = 6;
+
static final int NO_ERROR = 0;
/**