| /* |
| * Copyright (C) 2009 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 "FileBackupHelper_native" |
| #include <utils/Log.h> |
| |
| #include "JNIHelp.h" |
| #include <android_runtime/AndroidRuntime.h> |
| |
| #include <utils/backup_helpers.h> |
| |
| namespace android |
| { |
| |
| static jfieldID s_descriptorField = 0; |
| |
| static int |
| ctor_native(JNIEnv* env, jobject This, jobject fileDescriptor) |
| { |
| int err; |
| |
| int fd = env->GetIntField(fileDescriptor, s_descriptorField); |
| if (fd == -1) { |
| return NULL; |
| } |
| |
| return (int)new BackupDataWriter(fd); |
| } |
| |
| static void |
| dtor_native(JNIEnv* env, jobject This, int fd) |
| { |
| delete (BackupDataWriter*)fd; |
| } |
| |
| static const JNINativeMethod g_methods[] = { |
| { "ctor", "(Ljava/io/FileDescriptor;)I", (void*)ctor_native }, |
| { "dtor", "(I)V", (void*)dtor_native }, |
| }; |
| |
| int register_android_backup_BackupDataOutput(JNIEnv* env) |
| { |
| LOGD("register_android_backup_BackupDataOutput"); |
| |
| jclass clazz; |
| |
| clazz = env->FindClass("java/io/FileDescriptor"); |
| LOG_FATAL_IF(clazz == NULL, "Unable to find class java.io.FileDescriptor"); |
| s_descriptorField = env->GetFieldID(clazz, "descriptor", "I"); |
| LOG_FATAL_IF(s_descriptorField == NULL, |
| "Unable to find descriptor field in java.io.FileDescriptor"); |
| |
| return AndroidRuntime::registerNativeMethods(env, "android/backup/BackupDataOutput", |
| g_methods, NELEM(g_methods)); |
| } |
| |
| } |