| /* |
| * Copyright (C) 2018 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 <nativehelper/ScopedUtfChars.h> |
| #include "jni.h" |
| |
| #include "core_jni_helpers.h" |
| |
| namespace android { |
| |
| static jint com_android_internal_os_AtomicDirectory_getDirectoryFd(JNIEnv* env, |
| jobject /*clazz*/, jstring path) { |
| ScopedUtfChars path8(env, path); |
| if (path8.c_str() == NULL) { |
| ALOGE("Invalid path: %s", path8.c_str()); |
| return -1; |
| } |
| int fd; |
| if ((fd = TEMP_FAILURE_RETRY(open(path8.c_str(), O_DIRECTORY | O_RDONLY | O_CLOEXEC))) == -1) { |
| ALOGE("Cannot open directory %s, error: %s\n", path8.c_str(), strerror(errno)); |
| return -1; |
| } |
| return fd; |
| } |
| |
| static void com_android_internal_os_AtomicDirectory_fsyncDirectoryFd(JNIEnv* env, |
| jobject /*clazz*/, jint fd) { |
| if (TEMP_FAILURE_RETRY(fsync(fd)) == -1) { |
| ALOGE("Cannot fsync directory %d, error: %s\n", fd, strerror(errno)); |
| } |
| } |
| |
| /* |
| * JNI registration. |
| */ |
| static const JNINativeMethod gRegisterMethods[] = { |
| /* name, signature, funcPtr */ |
| { "fsyncDirectoryFd", |
| "(I)V", |
| (void*) com_android_internal_os_AtomicDirectory_fsyncDirectoryFd |
| }, |
| { "getDirectoryFd", |
| "(Ljava/lang/String;)I", |
| (void*) com_android_internal_os_AtomicDirectory_getDirectoryFd |
| }, |
| }; |
| |
| int register_com_android_internal_os_AtomicDirectory(JNIEnv* env) { |
| return RegisterMethodsOrDie(env, "com/android/internal/os/AtomicDirectory", |
| gRegisterMethods, NELEM(gRegisterMethods)); |
| } |
| |
| }; // namespace android |