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/*
* Copyright (C) 2020 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_file.h"
#include <string>
#include <unistd.h>
#include <android-base/logging.h>
namespace android {
namespace installd {
UniqueFile::UniqueFile() : UniqueFile(-1, "") {}
UniqueFile::UniqueFile(int value, std::string path) : UniqueFile(value, path, nullptr) {}
UniqueFile::UniqueFile(int value, std::string path, CleanUpFunction cleanup)
: value_(value), path_(path), cleanup_(cleanup), do_cleanup_(true), auto_close_(true) {}
UniqueFile::UniqueFile(UniqueFile&& other) {
*this = std::move(other);
}
UniqueFile::~UniqueFile() {
reset();
}
UniqueFile& UniqueFile::operator=(UniqueFile&& other) {
value_ = other.value_;
path_ = other.path_;
cleanup_ = other.cleanup_;
do_cleanup_ = other.do_cleanup_;
auto_close_ = other.auto_close_;
other.release();
return *this;
}
void UniqueFile::reset() {
reset(-1, "");
}
void UniqueFile::reset(int new_value, std::string path, CleanUpFunction new_cleanup) {
if (auto_close_ && value_ >= 0) {
if (close(value_) < 0) {
PLOG(ERROR) << "Failed to close fd " << value_ << ", with path " << path;
}
}
if (do_cleanup_ && cleanup_ != nullptr) {
cleanup_(path_);
}
value_ = new_value;
path_ = path;
cleanup_ = new_cleanup;
}
void UniqueFile::release() {
value_ = -1;
path_ = "";
do_cleanup_ = false;
cleanup_ = nullptr;
}
} // namespace installd
} // namespace android
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