android_database_SQLiteGlobal.cpp revision e5360fbf3efe85427f7e7f59afe7bbeddb4949ac
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" 27e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown 28e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brownnamespace android { 29e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown 30e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown// Called each time a message is logged. 31e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brownstatic void sqliteLogCallback(void* data, int iErrCode, const char* zMsg) { 32e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown bool verboseLog = !!data; 33e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown if (iErrCode == 0 || iErrCode == SQLITE_CONSTRAINT) { 34e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown if (verboseLog) { 35e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown ALOGV(LOG_VERBOSE, SQLITE_LOG_TAG, "(%d) %s\n", iErrCode, zMsg); 36e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown } 37e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown } else { 38e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown ALOG(LOG_ERROR, SQLITE_LOG_TAG, "(%d) %s\n", iErrCode, zMsg); 39e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown } 40e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown} 41e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown 42e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown// Sets the global SQLite configuration. 43e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown// This must be called before any other SQLite functions are called. */ 44e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brownstatic void nativeConfig(JNIEnv* env, jclass clazz, jboolean verboseLog, jint softHeapLimit) { 45e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown // Enable multi-threaded mode. In this mode, SQLite is safe to use by multiple 46e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown // threads as long as no two threads use the same database connection at the same 47e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown // time (which we guarantee in the SQLite database wrappers). 48e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown sqlite3_config(SQLITE_CONFIG_MULTITHREAD); 49e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown 50e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown // Redirect SQLite log messages to the Android log. 51e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown sqlite3_config(SQLITE_CONFIG_LOG, &sqliteLogCallback, verboseLog ? (void*)1 : NULL); 52e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown 53e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown // The soft heap limit prevents the page cache allocations from growing 54e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown // beyond the given limit, no matter what the max page cache sizes are 55e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown // set to. The limit does not, as of 3.5.0, affect any other allocations. 56e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown sqlite3_soft_heap_limit(softHeapLimit); 57e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown} 58e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown 59e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brownstatic jint nativeReleaseMemory(JNIEnv* env, jclass clazz, jint bytesToFree) { 60e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown return sqlite3_release_memory(bytesToFree); 61e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown} 62e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown 63e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brownstatic JNINativeMethod sMethods[] = 64e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown{ 65e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown /* name, signature, funcPtr */ 66e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown { "nativeConfig", "(ZI)V", 67e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown (void*)nativeConfig }, 68e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown { "nativeReleaseMemory", "(I)I", 69e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown (void*)nativeReleaseMemory }, 70e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown}; 71e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown 72e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brownint register_android_database_SQLiteGlobal(JNIEnv *env) 73e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown{ 74e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown return AndroidRuntime::registerNativeMethods(env, "android/database/sqlite/SQLiteGlobal", 75e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown sMethods, NELEM(sMethods)); 76e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown} 77e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown 78e5360fbf3efe85427f7e7f59afe7bbeddb4949acJeff Brown} // namespace android 79