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/*
* 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.
*/
#include <JNIHelp.h>
#include <jni.h>
#include <utils/misc.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <cutils/mspace.h>
#include <utils/Log.h>
#include <sqlite3.h>
namespace android {
static jfieldID gMemoryUsedField;
static jfieldID gPageCacheOverflowField;
static jfieldID gLargestMemAllocField;
#define USE_MSPACE 0
static void getPagerStats(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, gMemoryUsedField, memoryUsed);
env->SetIntField(statsObj, gPageCacheOverflowField, pageCacheOverflow);
env->SetIntField(statsObj, gLargestMemAllocField, largestMemAlloc);
}
/*
* JNI registration.
*/
static JNINativeMethod gMethods[] =
{
{ "getPagerStats", "(Landroid/database/sqlite/SQLiteDebug$PagerStats;)V",
(void*) getPagerStats },
};
int register_android_database_SQLiteDebug(JNIEnv *env)
{
jclass clazz;
clazz = env->FindClass("android/database/sqlite/SQLiteDebug$PagerStats");
if (clazz == NULL) {
ALOGE("Can't find android/database/sqlite/SQLiteDebug$PagerStats");
return -1;
}
gMemoryUsedField = env->GetFieldID(clazz, "memoryUsed", "I");
if (gMemoryUsedField == NULL) {
ALOGE("Can't find memoryUsed");
return -1;
}
gLargestMemAllocField = env->GetFieldID(clazz, "largestMemAlloc", "I");
if (gLargestMemAllocField == NULL) {
ALOGE("Can't find largestMemAlloc");
return -1;
}
gPageCacheOverflowField = env->GetFieldID(clazz, "pageCacheOverflow", "I");
if (gPageCacheOverflowField == NULL) {
ALOGE("Can't find pageCacheOverflow");
return -1;
}
return jniRegisterNativeMethods(env, "android/database/sqlite/SQLiteDebug",
gMethods, NELEM(gMethods));
}
} // namespace android
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