1 /*
2 * Copyright (c) 2021 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "fd_guard.h"
17
18 #include <unistd.h>
19
20 #include "../log.h"
21
22 namespace OHOS {
23 namespace DistributedFS {
FDGuard(int fd)24 FDGuard::FDGuard(int fd) : fd_(fd) {}
25
FDGuard(int fd,bool autoClose)26 FDGuard::FDGuard(int fd, bool autoClose) : fd_(fd), autoClose_(autoClose) {}
27
FDGuard(FDGuard && fdg)28 FDGuard::FDGuard(FDGuard &&fdg) : fd_(fdg.fd_), autoClose_(fdg.autoClose_)
29 {
30 fdg.fd_ = -1;
31 }
32
operator =(FDGuard && fdg)33 FDGuard &FDGuard::operator=(FDGuard &&fdg)
34 {
35 if (this == &fdg) {
36 return *this;
37 }
38 this->fd_ = fdg.fd_;
39 this->autoClose_ = fdg.autoClose_;
40 fdg.fd_ = -1;
41 return *this;
42 }
43
~FDGuard()44 FDGuard::~FDGuard()
45 {
46 if (fd_ >= 0 && fd_ <= STDERR_FILENO) {
47 HILOGI("~FDGuard, fd_ = %{public}d", fd_);
48 }
49 if (fd_ >= 0 && autoClose_) {
50 close(fd_);
51 }
52 }
53
54 FDGuard::operator bool() const
55 {
56 return fd_ >= 0;
57 }
58
GetFD() const59 int FDGuard::GetFD() const
60 {
61 return fd_;
62 }
63
SetFD(int fd,bool autoClose)64 void FDGuard::SetFD(int fd, bool autoClose)
65 {
66 fd_ = fd;
67 autoClose_ = autoClose;
68 }
69
ClearFD()70 void FDGuard::ClearFD()
71 {
72 fd_ = -1;
73 }
74 } // namespace DistributedFS
75 } // namespace OHOS
76