| /* |
| * Copyright (C) 2007 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.database.sqlite; |
| |
| import android.util.Config; |
| |
| /** |
| * Provides debugging info about all SQLite databases running in the current process. |
| * |
| * {@hide} |
| */ |
| public final class SQLiteDebug { |
| /** |
| * Controls the printing of SQL statements as they are executed. |
| */ |
| public static final boolean DEBUG_SQL_STATEMENTS = Config.LOGV; |
| |
| /** |
| * Controls the stack trace reporting of active cursors being |
| * finalized. |
| */ |
| public static final boolean DEBUG_ACTIVE_CURSOR_FINALIZATION = Config.LOGV; |
| |
| /** |
| * Controls the tracking of time spent holding the database lock. |
| */ |
| public static final boolean DEBUG_LOCK_TIME_TRACKING = false; |
| |
| /** |
| * Controls the printing of stack traces when tracking the time spent holding the database lock. |
| */ |
| public static final boolean DEBUG_LOCK_TIME_TRACKING_STACK_TRACE = false; |
| |
| /** |
| * Contains statistics about the active pagers in the current process. |
| * |
| * @see #getPagerStats(PagerStats) |
| */ |
| public static class PagerStats { |
| /** The total number of bytes in all pagers in the current process */ |
| public long totalBytes; |
| /** The number of bytes in referenced pages in all pagers in the current process */ |
| public long referencedBytes; |
| /** The number of bytes in all database files opened in the current process */ |
| public long databaseBytes; |
| /** The number of pagers opened in the current process */ |
| public int numPagers; |
| } |
| |
| /** |
| * Gathers statistics about all pagers in the current process. |
| */ |
| public static native void getPagerStats(PagerStats stats); |
| |
| /** |
| * Returns the size of the SQLite heap. |
| * @return The size of the SQLite heap in bytes. |
| */ |
| public static native long getHeapSize(); |
| |
| /** |
| * Returns the amount of allocated memory in the SQLite heap. |
| * @return The allocated size in bytes. |
| */ |
| public static native long getHeapAllocatedSize(); |
| |
| /** |
| * Returns the amount of free memory in the SQLite heap. |
| * @return The freed size in bytes. |
| */ |
| public static native long getHeapFreeSize(); |
| |
| /** |
| * Determines the number of dirty belonging to the SQLite |
| * heap segments of this process. pages[0] returns the number of |
| * shared pages, pages[1] returns the number of private pages |
| */ |
| public static native void getHeapDirtyPages(int[] pages); |
| |
| private static int sNumActiveCursorsFinalized = 0; |
| |
| /** |
| * Returns the number of active cursors that have been finalized. This depends on the GC having |
| * run but is still useful for tests. |
| */ |
| public static int getNumActiveCursorsFinalized() { |
| return sNumActiveCursorsFinalized; |
| } |
| |
| static synchronized void notifyActiveCursorFinalized() { |
| sNumActiveCursorsFinalized++; |
| } |
| } |