| /* |
| * 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. |
| */ |
| |
| #define LOG_TAG "SQLiteDebug" |
| |
| #include <jni.h> |
| #include <JNIHelp.h> |
| #include <android_runtime/AndroidRuntime.h> |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| #include <utils/Log.h> |
| |
| #include <sqlite3.h> |
| |
| #include "core_jni_helpers.h" |
| |
| namespace android { |
| |
| static struct { |
| jfieldID memoryUsed; |
| jfieldID pageCacheOverflow; |
| jfieldID largestMemAlloc; |
| } gSQLiteDebugPagerStatsClassInfo; |
| |
| static void nativeGetPagerStats(JNIEnv *env, jobject clazz, jobject statsObj) |
| { |
| int memoryUsed; |
| 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, &pageCacheOverflow, &unused, 0); |
| env->SetIntField(statsObj, gSQLiteDebugPagerStatsClassInfo.memoryUsed, memoryUsed); |
| env->SetIntField(statsObj, gSQLiteDebugPagerStatsClassInfo.pageCacheOverflow, |
| pageCacheOverflow); |
| env->SetIntField(statsObj, gSQLiteDebugPagerStatsClassInfo.largestMemAlloc, largestMemAlloc); |
| } |
| |
| /* |
| * JNI registration. |
| */ |
| |
| static const JNINativeMethod gMethods[] = |
| { |
| { "nativeGetPagerStats", "(Landroid/database/sqlite/SQLiteDebug$PagerStats;)V", |
| (void*) nativeGetPagerStats }, |
| }; |
| |
| int register_android_database_SQLiteDebug(JNIEnv *env) |
| { |
| jclass clazz = FindClassOrDie(env, "android/database/sqlite/SQLiteDebug$PagerStats"); |
| |
| gSQLiteDebugPagerStatsClassInfo.memoryUsed = GetFieldIDOrDie(env, clazz, "memoryUsed", "I"); |
| gSQLiteDebugPagerStatsClassInfo.largestMemAlloc = GetFieldIDOrDie(env, clazz, |
| "largestMemAlloc", "I"); |
| gSQLiteDebugPagerStatsClassInfo.pageCacheOverflow = GetFieldIDOrDie(env, clazz, |
| "pageCacheOverflow", "I"); |
| |
| return RegisterMethodsOrDie(env, "android/database/sqlite/SQLiteDebug", |
| gMethods, NELEM(gMethods)); |
| } |
| |
| } // namespace android |