Clean up SQLite debugging code.

Deleted a bunch of dead / useless code.
Raised number of logged operations in dumpsys dbinfo to 20.

Change-Id: I88344ff57a978f200c1f0172141d91e430caa1a9

5 files changed, 18 insertions, 240 deletions

diff --git a/core/java/android/app/ActivityThread.java b/core/java/android/app/ActivityThread.java
index bac3c6c..455d2f0 100644
--- a/core/java/android/app/ActivityThread.java
+++ b/core/java/android/app/ActivityThread.java
@@ -486,7 +486,6 @@ public final class ActivityThread {
         private static final String HEAP_COLUMN = "%13s %8s %8s %8s %8s %8s %8s";
         private static final String ONE_COUNT_COLUMN = "%21s %8d";
         private static final String TWO_COUNT_COLUMNS = "%21s %8d %21s %8d";
-        private static final String TWO_COUNT_COLUMNS_DB = "%21s %8d %21s %8d";
         private static final String DB_INFO_FORMAT = "  %8s %8s %14s %14s  %s";
 
         // Formatting for checkin service - update version if row format changes
@@ -867,7 +866,6 @@ public final class ActivityThread {
             int binderProxyObjectCount = Debug.getBinderProxyObjectCount();
             int binderDeathObjectCount = Debug.getBinderDeathObjectCount();
             long openSslSocketCount = Debug.countInstancesOfClass(OpenSSLSocketImpl.class);
-            long sqliteAllocated = SQLiteDebug.getHeapAllocatedSize() / 1024;
             SQLiteDebug.PagerStats stats = SQLiteDebug.getDatabaseInfo();
 
             // For checkin, we print one long comma-separated list of values
@@ -935,9 +933,9 @@ public final class ActivityThread {
                 pw.print(openSslSocketCount); pw.print(',');
 
                 // SQL
-                pw.print(sqliteAllocated); pw.print(',');
                 pw.print(stats.memoryUsed / 1024); pw.print(',');
-                pw.print(stats.pageCacheOverflo / 1024); pw.print(',');
+                pw.print(stats.memoryUsed / 1024); pw.print(',');
+                pw.print(stats.pageCacheOverflow / 1024); pw.print(',');
                 pw.print(stats.largestMemAlloc / 1024);
                 for (int i = 0; i < stats.dbStats.size(); i++) {
                     DbStats dbStats = stats.dbStats.get(i);
@@ -1003,10 +1001,9 @@ public final class ActivityThread {
             // SQLite mem info
             pw.println(" ");
             pw.println(" SQL");
-            printRow(pw, TWO_COUNT_COLUMNS_DB, "heap:", sqliteAllocated, "MEMORY_USED:",
-                    stats.memoryUsed / 1024);
-            printRow(pw, TWO_COUNT_COLUMNS_DB, "PAGECACHE_OVERFLOW:",
-                    stats.pageCacheOverflo / 1024, "MALLOC_SIZE:", stats.largestMemAlloc / 1024);
+            printRow(pw, ONE_COUNT_COLUMN, "MEMORY_USED:", stats.memoryUsed / 1024);
+            printRow(pw, TWO_COUNT_COLUMNS, "PAGECACHE_OVERFLOW:",
+                    stats.pageCacheOverflow / 1024, "MALLOC_SIZE:", stats.largestMemAlloc / 1024);
             pw.println(" ");
             int N = stats.dbStats.size();
             if (N > 0) {
diff --git a/core/java/android/database/sqlite/SQLiteConnection.java b/core/java/android/database/sqlite/SQLiteConnection.java
index aeca62d..2ea936e 100644
--- a/core/java/android/database/sqlite/SQLiteConnection.java
+++ b/core/java/android/database/sqlite/SQLiteConnection.java
@@ -84,6 +84,7 @@ import java.util.regex.Pattern;
  */
 public final class SQLiteConnection {
     private static final String TAG = "SQLiteConnection";
+    private static final boolean DEBUG = false;
 
     private static final String[] EMPTY_STRING_ARRAY = new String[0];
     private static final byte[] EMPTY_BYTE_ARRAY = new byte[0];
@@ -668,11 +669,12 @@ public final class SQLiteConnection {
                 // When remove() is called, the cache will invoke its entryRemoved() callback,
                 // which will in turn call finalizePreparedStatement() to finalize and
                 // recycle the statement.
-                if (SQLiteDebug.DEBUG_SQL_CACHE) {
-                    Log.v(TAG, "Could not reset prepared statement due to an exception.  "
+                if (DEBUG) {
+                    Log.d(TAG, "Could not reset prepared statement due to an exception.  "
                             + "Removing it from the cache.  SQL: "
                             + trimSqlForDisplay(statement.mSql), ex);
                 }
+
                 mPreparedStatementCache.remove(statement.mSql);
             }
         } else {
@@ -995,7 +997,7 @@ public final class SQLiteConnection {
     }
 
     private static final class OperationLog {
-        private static final int MAX_RECENT_OPERATIONS = 10;
+        private static final int MAX_RECENT_OPERATIONS = 20;
         private static final int COOKIE_GENERATION_SHIFT = 8;
         private static final int COOKIE_INDEX_MASK = 0xff;
 
diff --git a/core/java/android/database/sqlite/SQLiteCursor.java b/core/java/android/database/sqlite/SQLiteCursor.java
index 9dcb498..946300f 100644
--- a/core/java/android/database/sqlite/SQLiteCursor.java
+++ b/core/java/android/database/sqlite/SQLiteCursor.java
@@ -269,7 +269,6 @@ public class SQLiteCursor extends AbstractWindowedCursor {
                         mStackTrace);
                 }
                 close();
-                SQLiteDebug.notifyActiveCursorFinalized();
             }
         } finally {
             super.finalize();
diff --git a/core/java/android/database/sqlite/SQLiteDebug.java b/core/java/android/database/sqlite/SQLiteDebug.java
index a64251b..3ef9b49 100644
--- a/core/java/android/database/sqlite/SQLiteDebug.java
+++ b/core/java/android/database/sqlite/SQLiteDebug.java
@@ -49,31 +49,6 @@ public final class SQLiteDebug {
             Log.isLoggable("SQLiteTime", Log.VERBOSE);
 
     /**
-     * Controls the printing of compiled-sql-statement cache stats.
-     */
-    public static final boolean DEBUG_SQL_CACHE =
-            Log.isLoggable("SQLiteCompiledSql", Log.VERBOSE);
-
-    /**
-     * Controls the stack trace reporting of active cursors being
-     * finalized.
-     */
-    public static final boolean DEBUG_ACTIVE_CURSOR_FINALIZATION =
-            Log.isLoggable("SQLiteCursorClosing", Log.VERBOSE);
-
-    /**
-     * Controls the tracking of time spent holding the database lock.
-     */
-    public static final boolean DEBUG_LOCK_TIME_TRACKING =
-            Log.isLoggable("SQLiteLockTime", Log.VERBOSE);
-
-    /**
-     * 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 =
-            Log.isLoggable("SQLiteLockStackTrace", Log.VERBOSE);
-
-    /**
      * True to enable database performance testing instrumentation.
      * @hide
      */
@@ -101,27 +76,6 @@ public final class SQLiteDebug {
      * @see #getPagerStats(PagerStats)
      */
     public static class PagerStats {
-        /** The total number of bytes in all pagers in the current process
-         * @deprecated not used any longer
-         */
-        @Deprecated
-        public long totalBytes;
-        /** The number of bytes in referenced pages in all pagers in the current process
-         * @deprecated not used any longer
-         * */
-        @Deprecated
-        public long referencedBytes;
-        /** The number of bytes in all database files opened in the current process
-         * @deprecated not used any longer
-         */
-        @Deprecated
-        public long databaseBytes;
-        /** The number of pagers opened in the current process
-         * @deprecated not used any longer
-         */
-        @Deprecated
-        public int numPagers;
-
         /** the current amount of memory checked out by sqlite using sqlite3_malloc().
          * documented at http://www.sqlite.org/c3ref/c_status_malloc_size.html
          */
@@ -134,7 +88,7 @@ public final class SQLiteDebug {
          * that overflowed because no space was left in the page cache.
          * documented at http://www.sqlite.org/c3ref/c_status_malloc_size.html
          */
-        public int pageCacheOverflo;
+        public int pageCacheOverflow;
 
         /** records the largest memory allocation request handed to sqlite3.
          * documented at http://www.sqlite.org/c3ref/c_status_malloc_size.html
@@ -207,43 +161,4 @@ public final class SQLiteDebug {
      * 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++;
-    }
 }
diff --git a/core/jni/android_database_SQLiteDebug.cpp b/core/jni/android_database_SQLiteDebug.cpp
index 20ff00b..8d4e7f9 100644
--- a/core/jni/android_database_SQLiteDebug.cpp
+++ b/core/jni/android_database_SQLiteDebug.cpp
@@ -26,13 +26,10 @@
 
 #include <sqlite3.h>
 
-// From mem_mspace.c in libsqlite
-extern "C" mspace sqlite3_get_mspace();
-
 namespace android {
 
 static jfieldID gMemoryUsedField;
-static jfieldID gPageCacheOverfloField;
+static jfieldID gPageCacheOverflowField;
 static jfieldID gLargestMemAllocField;
 
 
@@ -41,146 +38,18 @@ static jfieldID gLargestMemAllocField;
 static void getPagerStats(JNIEnv *env, jobject clazz, jobject statsObj)
 {
     int memoryUsed;
-    int pageCacheOverflo;
+    int pageCacheOverflow;
     int largestMemAlloc;
     int unused;
 
     sqlite3_status(SQLITE_STATUS_MEMORY_USED, &memoryUsed, &unused, 0);
     sqlite3_status(SQLITE_STATUS_MALLOC_SIZE, &unused, &largestMemAlloc, 0);
-    sqlite3_status(SQLITE_STATUS_PAGECACHE_OVERFLOW, &pageCacheOverflo, &unused, 0);
+    sqlite3_status(SQLITE_STATUS_PAGECACHE_OVERFLOW, &pageCacheOverflow, &unused, 0);
     env->SetIntField(statsObj, gMemoryUsedField, memoryUsed);
-    env->SetIntField(statsObj, gPageCacheOverfloField, pageCacheOverflo);
+    env->SetIntField(statsObj, gPageCacheOverflowField, pageCacheOverflow);
     env->SetIntField(statsObj, gLargestMemAllocField, largestMemAlloc);
 }
 
-static jlong getHeapSize(JNIEnv *env, jobject clazz)
-{
-#if !NO_MALLINFO
-    struct mallinfo info = mspace_mallinfo(sqlite3_get_mspace());
-    struct mallinfo info = dlmallinfo();
-    return (jlong) info.usmblks;
-#elif USE_MSPACE
-    mspace space = sqlite3_get_mspace();
-    if (space != 0) {
-        return mspace_footprint(space);
-    } else {
-        return 0;
-    }
-#else
-    return 0;
-#endif
-}
-
-static jlong getHeapAllocatedSize(JNIEnv *env, jobject clazz)
-{
-#if !NO_MALLINFO
-    struct mallinfo info = mspace_mallinfo(sqlite3_get_mspace());
-    return (jlong) info.uordblks;
-#else
-    return sqlite3_memory_used();
-#endif
-}
-
-static jlong getHeapFreeSize(JNIEnv *env, jobject clazz)
-{
-#if !NO_MALLINFO
-    struct mallinfo info = mspace_mallinfo(sqlite3_get_mspace());
-    return (jlong) info.fordblks;
-#else
-    return getHeapSize(env, clazz) - sqlite3_memory_used();
-#endif
-}
-
-static int read_mapinfo(FILE *fp,
-        int *sharedPages, int *privatePages)
-{
-    char line[1024];
-    int len;
-    int skip;
-
-    unsigned start = 0, size = 0, resident = 0;
-    unsigned shared_clean = 0, shared_dirty = 0;
-    unsigned private_clean = 0, private_dirty = 0;
-    unsigned referenced = 0;
-
-    int isAnon = 0;
-    int isHeap = 0;
-
-again:
-    skip = 0;
-    
-    if(fgets(line, 1024, fp) == 0) return 0;
-
-    len = strlen(line);
-    if (len < 1) return 0;
-    line[--len] = 0;
-
-    /* ignore guard pages */
-    if (line[18] == '-') skip = 1;
-
-    start = strtoul(line, 0, 16);
-
-    if (len > 50 && !strncmp(line + 49, "/tmp/sqlite-heap", strlen("/tmp/sqlite-heap"))) {
-        isHeap = 1;
-    }
-
-    if (fgets(line, 1024, fp) == 0) return 0;
-    if (sscanf(line, "Size: %d kB", &size) != 1) return 0;
-    if (fgets(line, 1024, fp) == 0) return 0;
-    if (sscanf(line, "Rss: %d kB", &resident) != 1) return 0;
-    if (fgets(line, 1024, fp) == 0) return 0;
-    if (sscanf(line, "Shared_Clean: %d kB", &shared_clean) != 1) return 0;
-    if (fgets(line, 1024, fp) == 0) return 0;
-    if (sscanf(line, "Shared_Dirty: %d kB", &shared_dirty) != 1) return 0;
-    if (fgets(line, 1024, fp) == 0) return 0;
-    if (sscanf(line, "Private_Clean: %d kB", &private_clean) != 1) return 0;
-    if (fgets(line, 1024, fp) == 0) return 0;
-    if (sscanf(line, "Private_Dirty: %d kB", &private_dirty) != 1) return 0;
-    if (fgets(line, 1024, fp) == 0) return 0;
-    if (sscanf(line, "Referenced: %d kB", &referenced) != 1) return 0;
-    
-    if (skip) {
-        goto again;
-    }
-
-    if (isHeap) {
-        *sharedPages += shared_dirty;
-        *privatePages += private_dirty;
-    }
-    return 1;
-}
-
-static void load_maps(int pid, int *sharedPages, int *privatePages)
-{
-    char tmp[128];
-    FILE *fp;
-    
-    sprintf(tmp, "/proc/%d/smaps", pid);
-    fp = fopen(tmp, "r");
-    if (fp == 0) return;
-    
-    while (read_mapinfo(fp, sharedPages, privatePages) != 0) {
-        // Do nothing
-    }
-    fclose(fp);
-}
-
-static void getHeapDirtyPages(JNIEnv *env, jobject clazz, jintArray pages)
-{
-    int _pages[2];
-
-    _pages[0] = 0;
-    _pages[1] = 0;
-
-    load_maps(getpid(), &_pages[0], &_pages[1]);
-
-    // Convert from kbytes to 4K pages
-    _pages[0] /= 4;
-    _pages[1] /= 4;
-
-    env->SetIntArrayRegion(pages, 0, 2, _pages);
-}
-
 /*
  * JNI registration.
  */
@@ -189,10 +58,6 @@ static JNINativeMethod gMethods[] =
 {
     { "getPagerStats", "(Landroid/database/sqlite/SQLiteDebug$PagerStats;)V",
             (void*) getPagerStats },
-    { "getHeapSize", "()J", (void*) getHeapSize },
-    { "getHeapAllocatedSize", "()J", (void*) getHeapAllocatedSize },
-    { "getHeapFreeSize", "()J", (void*) getHeapFreeSize },
-    { "getHeapDirtyPages", "([I)V", (void*) getHeapDirtyPages },
 };
 
 int register_android_database_SQLiteDebug(JNIEnv *env)
@@ -217,9 +82,9 @@ int register_android_database_SQLiteDebug(JNIEnv *env)
         return -1;
     }
 
-    gPageCacheOverfloField = env->GetFieldID(clazz, "pageCacheOverflo", "I");
-    if (gPageCacheOverfloField == NULL) {
-        ALOGE("Can't find pageCacheOverflo");
+    gPageCacheOverflowField = env->GetFieldID(clazz, "pageCacheOverflow", "I");
+    if (gPageCacheOverflowField == NULL) {
+        ALOGE("Can't find pageCacheOverflow");
         return -1;
     }