1aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root/* 2aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root * Copyright (C) 2010 The Android Open Source Project 3aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root * 4aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root * Licensed under the Apache License, Version 2.0 (the "License"); 5aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root * you may not use this file except in compliance with the License. 6aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root * You may obtain a copy of the License at 7aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root * 8aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root * http://www.apache.org/licenses/LICENSE-2.0 9aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root * 10aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root * Unless required by applicable law or agreed to in writing, software 11aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root * distributed under the License is distributed on an "AS IS" BASIS, 12aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root * See the License for the specific language governing permissions and 14aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root * limitations under the License. 15aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root */ 16aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root 17aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root#define LOG_TAG "DefContainer-JNI" 18aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root 19aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root#include <JNIHelp.h> 20aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root 21aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root#include <diskusage/dirsize.h> 22aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root#include <utils/Log.h> 23aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root 24aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root#include <sys/types.h> 25aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root#include <sys/stat.h> 26aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root#include <errno.h> 27aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root#include <fcntl.h> 28aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root#include <string.h> 29aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root 30aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Rootnamespace android { 31aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root 32aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Rootstatic jlong native_measureDirectory(JNIEnv* env, jobject clazz, jstring directory) { 33aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root jlong ret = 0L; 34aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root 35aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root const char* path = env->GetStringUTFChars(directory, NULL); 36aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root if (path == NULL) { 37aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root return ret; 38aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root } 39aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root 40aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root int dirfd = open(path, O_DIRECTORY, O_RDONLY); 41aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root if (dirfd < 0) { 426215d3ff4b5dfa52a5d8b9a42e343051f31066a5Steve Block ALOGI("error opening: %s: %s", path, strerror(errno)); 43aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root } else { 44aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root ret = calculate_dir_size(dirfd); 45aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root close(dirfd); 46aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root } 47aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root 48aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root env->ReleaseStringUTFChars(directory, path); 49aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root 50aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root return ret; 51aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root} 52aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root 53aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Rootstatic const JNINativeMethod g_methods[] = { 54aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root { "native_measureDirectory", "(Ljava/lang/String;)J", (void*)native_measureDirectory }, 55aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root}; 56aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root 57aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Rootint register_com_android_defcontainer(JNIEnv *env) { 58aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root if (jniRegisterNativeMethods( 59aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root env, "com/android/defcontainer/MeasurementUtils", g_methods, NELEM(g_methods)) < 0) { 60aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root return JNI_ERR; 61aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root } 62aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root 63aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root return JNI_VERSION_1_6; 64aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root} 65aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root 66aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root} // namespace android 67aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root 68aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Rootint JNI_OnLoad(JavaVM *jvm, void* reserved) { 69aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root JNIEnv *env; 70aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root 71aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root if (jvm->GetEnv((void**)&env, JNI_VERSION_1_6)) { 72aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root return JNI_ERR; 73aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root } 74aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root 75aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root return android::register_com_android_defcontainer(env); 76aa183e2c9a279cb6aef7dc77855facfae795b6f8Kenny Root} 77