Zim | 3e45d9b | 2019-08-19 21:14:14 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2019 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specic language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | // Need to use LOGE_EX. |
| 18 | #define LOG_TAG "FuseDaemon" |
| 19 | |
| 20 | #include "FuseDaemon.h" |
| 21 | |
| 22 | #include <string> |
| 23 | |
| 24 | #include <nativehelper/JNIHelp.h> |
| 25 | #include <nativehelper/scoped_utf_chars.h> |
| 26 | #include <cutils/log.h> |
| 27 | |
| 28 | namespace mediaprovider { |
| 29 | namespace { |
| 30 | |
| 31 | constexpr const char* CLASS_NAME = "com/android/providers/media/fuse/FuseDaemon"; |
| 32 | static jclass gFuseDaemonClass; |
| 33 | |
| 34 | jlong com_android_providers_media_FuseDaemon_new(JNIEnv* env, jobject self, |
| 35 | jobject mediaProvider) { |
| 36 | ALOGD("Creating the FUSE daemon...\n"); |
| 37 | return reinterpret_cast<jlong>(new fuse::FuseDaemon(env, mediaProvider)); |
| 38 | } |
| 39 | |
| 40 | void com_android_providers_media_FuseDaemon_start( |
| 41 | JNIEnv* env, jobject self, jlong java_daemon, jint fd, jstring java_upper_path, |
| 42 | jstring java_lower_path) { |
| 43 | ALOGD("Starting the FUSE daemon..."); |
| 44 | fuse::FuseDaemon* const daemon = reinterpret_cast<fuse::FuseDaemon*>(java_daemon); |
| 45 | |
| 46 | ScopedUtfChars utf_chars_upper_path(env, java_upper_path); |
| 47 | if (!utf_chars_upper_path.c_str()) { |
| 48 | return; |
| 49 | } |
| 50 | const std::string& string_upper_path = std::string(utf_chars_upper_path.c_str()); |
| 51 | |
| 52 | ScopedUtfChars utf_chars_lower_path(env, java_lower_path); |
| 53 | if (!utf_chars_lower_path.c_str()) { |
| 54 | return; |
| 55 | } |
| 56 | const std::string& string_lower_path = std::string(utf_chars_lower_path.c_str()); |
| 57 | |
| 58 | daemon->Start(fd, string_upper_path, string_lower_path); |
| 59 | } |
| 60 | |
| 61 | void com_android_providers_media_FuseDaemon_stop( |
| 62 | JNIEnv* env, jobject self, jlong java_daemon) { |
| 63 | ALOGD("Stopping the FUSE daemon..."); |
| 64 | fuse::FuseDaemon* const daemon = reinterpret_cast<fuse::FuseDaemon*>(java_daemon); |
| 65 | daemon->Stop(); |
| 66 | } |
| 67 | |
| 68 | void com_android_providers_media_FuseDaemon_delete( |
| 69 | JNIEnv* env, jobject self, jlong java_daemon) { |
| 70 | ALOGD("Destroying the FUSE daemon..."); |
| 71 | fuse::FuseDaemon* const daemon = reinterpret_cast<fuse::FuseDaemon*>(java_daemon); |
| 72 | delete daemon; |
| 73 | } |
| 74 | |
| 75 | const JNINativeMethod methods[] = { |
| 76 | { |
| 77 | "native_new", |
| 78 | "(Lcom/android/providers/media/MediaProvider;)J", |
| 79 | reinterpret_cast<void*>(com_android_providers_media_FuseDaemon_new) |
| 80 | }, |
| 81 | { |
| 82 | "native_start", |
| 83 | "(JILjava/lang/String;Ljava/lang/String;)V", |
| 84 | reinterpret_cast<void*>(com_android_providers_media_FuseDaemon_start) |
| 85 | }, |
| 86 | { |
| 87 | "native_stop", |
| 88 | "(J)V", |
| 89 | reinterpret_cast<void*>(com_android_providers_media_FuseDaemon_stop) |
| 90 | }, |
| 91 | { |
| 92 | "native_delete", |
| 93 | "(J)V", |
| 94 | reinterpret_cast<void*>(com_android_providers_media_FuseDaemon_delete) |
| 95 | } |
| 96 | }; |
| 97 | } // namespace |
| 98 | |
| 99 | void register_android_providers_media_FuseDaemon(JNIEnv* env) { |
| 100 | gFuseDaemonClass = static_cast<jclass>(env->NewGlobalRef(env->FindClass(CLASS_NAME))); |
| 101 | jniRegisterNativeMethods(env, CLASS_NAME, methods, NELEM(methods)); |
| 102 | } |
| 103 | } // namespace mediaprovider |