| /* |
| * Copyright (C) 2016 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 "unique_fd.h" |
| |
| #include <errno.h> |
| #include <string.h> |
| |
| #include <android-base/logging.h> |
| |
| namespace android { |
| namespace automotive { |
| namespace evs { |
| namespace V1_1 { |
| namespace implementation { |
| |
| UniqueFd::UniqueFd() : fd_(-1) {} |
| |
| UniqueFd::UniqueFd(int fd) : fd_(fd) { |
| } |
| |
| UniqueFd::~UniqueFd() { |
| InternalClose(); |
| } |
| |
| UniqueFd::UniqueFd(UniqueFd&& other) : fd_(other.fd_) { |
| other.fd_ = -1; |
| } |
| |
| UniqueFd& UniqueFd::operator=(UniqueFd&& other) { |
| InternalClose(); |
| fd_ = other.fd_; |
| other.fd_ = -1; |
| return *this; |
| } |
| |
| void UniqueFd::Reset(int new_fd) { |
| InternalClose(); |
| fd_ = new_fd; |
| } |
| |
| UniqueFd UniqueFd::Dup() const { |
| return (fd_ >= 0) ? UniqueFd(InternalDup()) : UniqueFd(fd_); |
| } |
| |
| UniqueFd::operator bool() const { |
| return fd_ >= 0; |
| } |
| |
| int UniqueFd::Get() const { |
| return fd_; |
| } |
| |
| int UniqueFd::GetUnowned() const { |
| return InternalDup(); |
| } |
| |
| int UniqueFd::Release() { |
| int ret = fd_; |
| fd_ = -1; |
| return ret; |
| } |
| |
| void UniqueFd::InternalClose() { |
| if (fd_ >= 0) { |
| int err = close(fd_); |
| if (err < 0) { |
| PLOG(FATAL) << "Error closing UniqueFd"; |
| } |
| } |
| fd_ = -1; |
| } |
| |
| int UniqueFd::InternalDup() const { |
| int new_fd = fd_ >= 0 ? dup(fd_) : fd_; |
| if (new_fd < 0 && fd_ >= 0) { |
| PLOG(FATAL) << "Error duplicating UniqueFd"; |
| } |
| return new_fd; |
| } |
| |
| } // namespace implementation |
| } // namespace V1_1 |
| } // namespace evs |
| } // namespace automotive |
| } // namespace android |