diff options
Diffstat (limited to 'framework/java/android/bluetooth/BluetoothAdapter.java')
| -rw-r--r-- | framework/java/android/bluetooth/BluetoothAdapter.java | 177 |
1 files changed, 127 insertions, 50 deletions
diff --git a/framework/java/android/bluetooth/BluetoothAdapter.java b/framework/java/android/bluetooth/BluetoothAdapter.java index 4ee22b78c5..f062a39c6f 100644 --- a/framework/java/android/bluetooth/BluetoothAdapter.java +++ b/framework/java/android/bluetooth/BluetoothAdapter.java @@ -26,6 +26,7 @@ import android.annotation.SdkConstant; import android.annotation.SdkConstant.SdkConstantType; import android.annotation.SystemApi; import android.app.ActivityThread; +import android.app.PropertyInvalidatedCache; import android.bluetooth.BluetoothProfile.ConnectionPolicy; import android.bluetooth.le.BluetoothLeAdvertiser; import android.bluetooth.le.BluetoothLeScanner; @@ -848,7 +849,7 @@ public final class BluetoothAdapter { synchronized (mLock) { if (sBluetoothLeScanner == null) { sBluetoothLeScanner = new BluetoothLeScanner(mManagerService, getOpPackageName(), - getFeatureId()); + getAttributionTag()); } } return sBluetoothLeScanner; @@ -971,6 +972,55 @@ public final class BluetoothAdapter { return false; } + private static final String BLUETOOTH_GET_STATE_CACHE_PROPERTY = "cache_key.bluetooth.get_state"; + + private final PropertyInvalidatedCache<Void, Integer> mBluetoothGetStateCache = + new PropertyInvalidatedCache<Void, Integer>( + 8, BLUETOOTH_GET_STATE_CACHE_PROPERTY) { + @Override + protected Integer recompute(Void query) { + try { + return mService.getState(); + } catch (RemoteException e) { + throw e.rethrowFromSystemServer(); + } + } + }; + + /** @hide */ + public void disableBluetoothGetStateCache() { + mBluetoothGetStateCache.disableLocal(); + } + + /** @hide */ + public static void invalidateBluetoothGetStateCache() { + PropertyInvalidatedCache.invalidateCache(BLUETOOTH_GET_STATE_CACHE_PROPERTY); + } + + /** + * Fetch the current bluetooth state. If the service is down, return + * OFF. + */ + @AdapterState + private int getStateInternal() { + int state = BluetoothAdapter.STATE_OFF; + try { + mServiceLock.readLock().lock(); + if (mService != null) { + state = mBluetoothGetStateCache.query(null); + } + } catch (RuntimeException e) { + if (e.getCause() instanceof RemoteException) { + Log.e(TAG, "", e.getCause()); + } else { + throw e; + } + } finally { + mServiceLock.readLock().unlock(); + } + return state; + } + /** * Get the current state of the local Bluetooth adapter. * <p>Possible return values are @@ -984,18 +1034,7 @@ public final class BluetoothAdapter { @RequiresPermission(Manifest.permission.BLUETOOTH) @AdapterState public int getState() { - int state = BluetoothAdapter.STATE_OFF; - - try { - mServiceLock.readLock().lock(); - if (mService != null) { - state = mService.getState(); - } - } catch (RemoteException e) { - Log.e(TAG, "", e); - } finally { - mServiceLock.readLock().unlock(); - } + int state = getStateInternal(); // Consider all internal states as OFF if (state == BluetoothAdapter.STATE_BLE_ON || state == BluetoothAdapter.STATE_BLE_TURNING_ON @@ -1033,18 +1072,7 @@ public final class BluetoothAdapter { @UnsupportedAppUsage(publicAlternatives = "Use {@link #getState()} instead to determine " + "whether you can use BLE & BT classic.") public int getLeState() { - int state = BluetoothAdapter.STATE_OFF; - - try { - mServiceLock.readLock().lock(); - if (mService != null) { - state = mService.getState(); - } - } catch (RemoteException e) { - Log.e(TAG, "", e); - } finally { - mServiceLock.readLock().unlock(); - } + int state = getStateInternal(); if (VDBG) { Log.d(TAG, "getLeState() returning " + BluetoothAdapter.nameForState(state)); @@ -1631,11 +1659,11 @@ public final class BluetoothAdapter { return ActivityThread.currentOpPackageName(); } - private String getFeatureId() { + private String getAttributionTag() { // Workaround for legacy API for getting a BluetoothAdapter not // passing a context if (mContext != null) { - return null; + return mContext.getAttributionTag(); } return null; } @@ -1677,7 +1705,7 @@ public final class BluetoothAdapter { try { mServiceLock.readLock().lock(); if (mService != null) { - return mService.startDiscovery(getOpPackageName(), getFeatureId()); + return mService.startDiscovery(getOpPackageName(), getAttributionTag()); } } catch (RemoteException e) { Log.e(TAG, "", e); @@ -1941,6 +1969,38 @@ public final class BluetoothAdapter { } } + private static final String BLUETOOTH_FILTERING_CACHE_PROPERTY = + "cache_key.bluetooth.is_offloaded_filtering_supported"; + private final PropertyInvalidatedCache<Void, Boolean> mBluetoothFilteringCache = + new PropertyInvalidatedCache<Void, Boolean>( + 8, BLUETOOTH_FILTERING_CACHE_PROPERTY) { + @Override + protected Boolean recompute(Void query) { + try { + mServiceLock.readLock().lock(); + if (mService != null) { + return mService.isOffloadedFilteringSupported(); + } + } catch (RemoteException e) { + Log.e(TAG, "failed to get isOffloadedFilteringSupported, error: ", e); + } finally { + mServiceLock.readLock().unlock(); + } + return false; + + } + }; + + /** @hide */ + public void disableIsOffloadedFilteringSupportedCache() { + mBluetoothFilteringCache.disableLocal(); + } + + /** @hide */ + public static void invalidateIsOffloadedFilteringSupportedCache() { + PropertyInvalidatedCache.invalidateCache(BLUETOOTH_FILTERING_CACHE_PROPERTY); + } + /** * Return true if offloaded filters are supported * @@ -1950,17 +2010,7 @@ public final class BluetoothAdapter { if (!getLeAccess()) { return false; } - try { - mServiceLock.readLock().lock(); - if (mService != null) { - return mService.isOffloadedFilteringSupported(); - } - } catch (RemoteException e) { - Log.e(TAG, "failed to get isOffloadedFilteringSupported, error: ", e); - } finally { - mServiceLock.readLock().unlock(); - } - return false; + return mBluetoothFilteringCache.query(null); } /** @@ -2332,6 +2382,43 @@ public final class BluetoothAdapter { return BluetoothAdapter.STATE_DISCONNECTED; } + private static final String BLUETOOTH_PROFILE_CACHE_PROPERTY = + "cache_key.bluetooth.get_profile_connection_state"; + private final PropertyInvalidatedCache<Integer, Integer> + mGetProfileConnectionStateCache = + new PropertyInvalidatedCache<Integer, Integer>( + 8, BLUETOOTH_PROFILE_CACHE_PROPERTY) { + @Override + protected Integer recompute(Integer query) { + try { + mServiceLock.readLock().lock(); + if (mService != null) { + return mService.getProfileConnectionState(query); + } + } catch (RemoteException e) { + Log.e(TAG, "getProfileConnectionState:", e); + } finally { + mServiceLock.readLock().unlock(); + } + return BluetoothProfile.STATE_DISCONNECTED; + } + @Override + public String queryToString(Integer query) { + return String.format("getProfileConnectionState(profile=\"%d\")", + query); + } + }; + + /** @hide */ + public void disableGetProfileConnectionStateCache() { + mGetProfileConnectionStateCache.disableLocal(); + } + + /** @hide */ + public static void invalidateGetProfileConnectionStateCache() { + PropertyInvalidatedCache.invalidateCache(BLUETOOTH_PROFILE_CACHE_PROPERTY); + } + /** * Get the current connection state of a profile. * This function can be used to check whether the local Bluetooth adapter @@ -2349,17 +2436,7 @@ public final class BluetoothAdapter { if (getState() != STATE_ON) { return BluetoothProfile.STATE_DISCONNECTED; } - try { - mServiceLock.readLock().lock(); - if (mService != null) { - return mService.getProfileConnectionState(profile); - } - } catch (RemoteException e) { - Log.e(TAG, "getProfileConnectionState:", e); - } finally { - mServiceLock.readLock().unlock(); - } - return BluetoothProfile.STATE_DISCONNECTED; + return mGetProfileConnectionStateCache.query(new Integer(profile)); } /** |