Merge "Fix race condition when setting default ringtones" into mnc-dr-dev (83702ec3) · Commits · e / os / android_frameworks_base

media/java/android/media/MediaScanner.java

+61 −28

Original line number	Diff line number	Diff line
		@@ -20,6 +20,7 @@ import org.xml.sax.Attributes;
		import org.xml.sax.ContentHandler;
		import org.xml.sax.SAXException;

		import android.content.ContentResolver;
		import android.content.ContentUris;
		import android.content.ContentValues;
		import android.content.Context;
		@@ -41,6 +42,7 @@ import android.provider.MediaStore.Files.FileColumns;
		import android.provider.MediaStore.Images;
		import android.provider.MediaStore.Video;
		import android.provider.Settings;
		import android.provider.Settings.SettingNotFoundException;
		import android.sax.Element;
		import android.sax.ElementListener;
		import android.sax.RootElement;
		@@ -324,8 +326,6 @@ public class MediaScanner
		// used when scanning the image database so we know whether we have to prune
		// old thumbnail files
		private int mOriginalCount;
		/** Whether the database had any entries in it before the scan started */
		private boolean mWasEmptyPriorToScan = false;
		/** Whether the scanner has set a default sound for the ringer ringtone. */
		private boolean mDefaultRingtoneSet;
		/** Whether the scanner has set a default sound for the notification ringtone. */
		@@ -535,6 +535,18 @@ public class MediaScanner
		if (mMtpObjectHandle != 0) {
		entry.mRowId = 0;
		}

		if ((!mDefaultNotificationSet &&
		doesPathHaveFilename(entry.mPath, mDefaultNotificationFilename))
		\|\| (!mDefaultRingtoneSet &&
		doesPathHaveFilename(entry.mPath, mDefaultRingtoneFilename))
		\|\| (!mDefaultAlarmSet &&
		doesPathHaveFilename(entry.mPath, mDefaultAlarmAlertFilename))) {
		Log.w(TAG, "forcing rescan of " + entry.mPath +
		"since ringtone setting didn't finish");
		scanAlways = true;
		}

		// rescan for metadata if file was modified since last scan
		if (entry != null && (entry.mLastModifiedChanged \|\| scanAlways)) {
		if (noMedia) {
		@@ -914,21 +926,9 @@ public class MediaScanner
		}
		Uri result = null;
		boolean needToSetSettings = false;
		if (rowId == 0) {
		if (mMtpObjectHandle != 0) {
		values.put(MediaStore.MediaColumns.MEDIA_SCANNER_NEW_OBJECT_ID, mMtpObjectHandle);
		}
		if (tableUri == mFilesUri) {
		int format = entry.mFormat;
		if (format == 0) {
		format = MediaFile.getFormatCode(entry.mPath, mMimeType);
		}
		values.put(Files.FileColumns.FORMAT, format);
		}
		// Setting a flag in order not to use bulk insert for the file related with
		// notifications, ringtones, and alarms, because the rowId of the inserted file is
		// needed.
		if (mWasEmptyPriorToScan) {
		if (notifications && !mDefaultNotificationSet) {
		if (TextUtils.isEmpty(mDefaultNotificationFilename) \|\|
		doesPathHaveFilename(entry.mPath, mDefaultNotificationFilename)) {
		@@ -945,8 +945,18 @@ public class MediaScanner
		needToSetSettings = true;
		}
		}
		}

		if (rowId == 0) {
		if (mMtpObjectHandle != 0) {
		values.put(MediaStore.MediaColumns.MEDIA_SCANNER_NEW_OBJECT_ID, mMtpObjectHandle);
		}
		if (tableUri == mFilesUri) {
		int format = entry.mFormat;
		if (format == 0) {
		format = MediaFile.getFormatCode(entry.mPath, mMimeType);
		}
		values.put(Files.FileColumns.FORMAT, format);
		}
		// New file, insert it.
		// Directories need to be inserted before the files they contain, so they
		// get priority when bulk inserting.
		@@ -1016,13 +1026,20 @@ public class MediaScanner

		private void setSettingIfNotSet(String settingName, Uri uri, long rowId) {

		if(wasSettingAlreadySet(settingName)) {
		return;
		}

		String existingSettingValue = Settings.System.getString(mContext.getContentResolver(),
		settingName);

		if (TextUtils.isEmpty(existingSettingValue)) {
		// Set the setting to the given URI
		Settings.System.putString(mContext.getContentResolver(), settingName,

		ContentResolver cr = mContext.getContentResolver();
		Settings.System.putString(cr, settingName,
		ContentUris.withAppendedId(uri, rowId).toString());
		Settings.System.putInt(cr, settingSetIndicatorName(settingName), 1);
		}
		}

		@@ -1050,6 +1067,20 @@ public class MediaScanner

		}; // end of anonymous MediaScannerClient instance

		private String settingSetIndicatorName(String base) {
		return base + "_set";
		}

		private boolean wasSettingAlreadySet(String name) {
		ContentResolver cr = mContext.getContentResolver();
		String indicatorName = settingSetIndicatorName(name);
		try {
		return Settings.System.getInt(cr, indicatorName) != 0;
		} catch (SettingNotFoundException e) {
		return false;
		}
		}

		private void prescan(String filePath, boolean prescanFiles) throws RemoteException {
		Cursor c = null;
		String where = null;
		@@ -1071,6 +1102,10 @@ public class MediaScanner
		selectionArgs = new String[] { "" };
		}

		mDefaultRingtoneSet = wasSettingAlreadySet(Settings.System.RINGTONE);
		mDefaultNotificationSet = wasSettingAlreadySet(Settings.System.NOTIFICATION_SOUND);
		mDefaultAlarmSet = wasSettingAlreadySet(Settings.System.ALARM_ALERT);

		// Tell the provider to not delete the file.
		// If the file is truly gone the delete is unnecessary, and we want to avoid
		// accidentally deleting files that are really there (this may happen if the
		@@ -1089,7 +1124,6 @@ public class MediaScanner
		// with CursorWindow positioning.
		long lastId = Long.MIN_VALUE;
		Uri limitUri = mFilesUri.buildUpon().appendQueryParameter("limit", "1000").build();
		mWasEmptyPriorToScan = true;

		while (true) {
		selectionArgs[0] = "" + lastId;
		@@ -1108,7 +1142,6 @@ public class MediaScanner
		if (num == 0) {
		break;
		}
		mWasEmptyPriorToScan = false;
		while (c.moveToNext()) {
		long rowId = c.getLong(FILES_PRESCAN_ID_COLUMN_INDEX);
		String path = c.getString(FILES_PRESCAN_PATH_COLUMN_INDEX);
		@@ -1260,7 +1293,7 @@ public class MediaScanner
		}
		}

		private void postscan(String[] directories) throws RemoteException {
		private void postscan(final String[] directories) throws RemoteException {

		// handle playlists last, after we know what media files are on the storage.
		if (mProcessPlaylists) {