1e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown/* 2e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown * Copyright (C) 2011 The Android Open Source Project 3e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown * 4e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown * Licensed under the Apache License, Version 2.0 (the "License"); 5e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown * you may not use this file except in compliance with the License. 6e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown * You may obtain a copy of the License at 7e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown * 8e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown * http://www.apache.org/licenses/LICENSE-2.0 9e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown * 10e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown * Unless required by applicable law or agreed to in writing, software 11e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown * distributed under the License is distributed on an "AS IS" BASIS, 12e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown * See the License for the specific language governing permissions and 14e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown * limitations under the License. 15e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown */ 16e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown 17e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown#define LOG_TAG "SQLiteGlobal" 18e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown 19e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown#include <jni.h> 20e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown#include <JNIHelp.h> 21e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown#include <android_runtime/AndroidRuntime.h> 22e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown 23e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown#include <sqlite3.h> 24e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown#include <sqlite3_android.h> 25e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown 26e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown#include "android_database_SQLiteCommon.h" 274b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown#include "android_util_Log.h" 28e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown 29e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brownnamespace android { 30e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown 314b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown// Limit heap to 8MB for now. This is 4 times the maximum cursor window 324b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown// size, as has been used by the original code in SQLiteDatabase for 334b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown// a long time. 344b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brownstatic const int SOFT_HEAP_LIMIT = 8 * 1024 * 1024; 354b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown 364b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown 37e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown// Called each time a message is logged. 38e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brownstatic void sqliteLogCallback(void* data, int iErrCode, const char* zMsg) { 39e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown bool verboseLog = !!data; 4008cbdad565b3d2a01b005ceea5667f261ba89353Jeff Brown if (iErrCode == 0 || iErrCode == SQLITE_CONSTRAINT || iErrCode == SQLITE_SCHEMA) { 41e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown if (verboseLog) { 42d06969518b12afb27a487ae66f8d73a4d3116587Colin Cross ALOG(LOG_VERBOSE, SQLITE_LOG_TAG, "(%d) %s\n", iErrCode, zMsg); 43e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown } 44e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown } else { 45e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown ALOG(LOG_ERROR, SQLITE_LOG_TAG, "(%d) %s\n", iErrCode, zMsg); 46e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown } 47e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown} 48e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown 49e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown// Sets the global SQLite configuration. 504b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown// This must be called before any other SQLite functions are called. 514b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brownstatic void sqliteInitialize() { 52e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown // Enable multi-threaded mode. In this mode, SQLite is safe to use by multiple 53e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown // threads as long as no two threads use the same database connection at the same 54e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown // time (which we guarantee in the SQLite database wrappers). 55e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown sqlite3_config(SQLITE_CONFIG_MULTITHREAD); 56e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown 57e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown // Redirect SQLite log messages to the Android log. 584b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown bool verboseLog = android_util_Log_isVerboseLogEnabled(SQLITE_LOG_TAG); 59e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown sqlite3_config(SQLITE_CONFIG_LOG, &sqliteLogCallback, verboseLog ? (void*)1 : NULL); 60e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown 61e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown // The soft heap limit prevents the page cache allocations from growing 62e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown // beyond the given limit, no matter what the max page cache sizes are 63e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown // set to. The limit does not, as of 3.5.0, affect any other allocations. 644b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown sqlite3_soft_heap_limit(SOFT_HEAP_LIMIT); 654b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown 664b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown // Initialize SQLite. 674b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown sqlite3_initialize(); 68e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown} 69e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown 704b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brownstatic jint nativeReleaseMemory(JNIEnv* env, jclass clazz) { 714b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown return sqlite3_release_memory(SOFT_HEAP_LIMIT); 72e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown} 73e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown 74e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brownstatic JNINativeMethod sMethods[] = 75e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown{ 76e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown /* name, signature, funcPtr */ 774b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown { "nativeReleaseMemory", "()I", 78e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown (void*)nativeReleaseMemory }, 79e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown}; 80e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown 81e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brownint register_android_database_SQLiteGlobal(JNIEnv *env) 82e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown{ 834b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown sqliteInitialize(); 844b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown 85e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown return AndroidRuntime::registerNativeMethods(env, "android/database/sqlite/SQLiteGlobal", 86e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown sMethods, NELEM(sMethods)); 87e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown} 88e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown 89e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown} // namespace android 90