1
2 /**
3 * Copyright (C) 2018-present MongoDB, Inc.
4 *
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the Server Side Public License, version 1,
7 * as published by MongoDB, Inc.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * Server Side Public License for more details.
13 *
14 * You should have received a copy of the Server Side Public License
15 * along with this program. If not, see
16 * <http://www.mongodb.com/licensing/server-side-public-license>.
17 *
18 * As a special exception, the copyright holders give permission to link the
19 * code of portions of this program with the OpenSSL library under certain
20 * conditions as described in each individual source file and distribute
21 * linked combinations including the program with the OpenSSL library. You
22 * must comply with the Server Side Public License in all respects for
23 * all of the code used other than as permitted herein. If you modify file(s)
24 * with this exception, you may extend this exception to your version of the
25 * file(s), but you are not obligated to do so. If you do not wish to do so,
26 * delete this exception statement from your version. If you delete this
27 * exception statement from all source files in the program, then also delete
28 * it in the license file.
29 */
30
31 #pragma once
32
33 namespace mongo {
34
OK()35 inline Status Status::OK() {
36 return Status();
37 }
38
Status(const Status & other)39 inline Status::Status(const Status& other) : _error(other._error) {
40 ref(_error);
41 }
42
43 inline Status& Status::operator=(const Status& other) {
44 ref(other._error);
45 unref(_error);
46 _error = other._error;
47 return *this;
48 }
49
Status(Status && other)50 inline Status::Status(Status&& other) noexcept : _error(other._error) {
51 other._error = nullptr;
52 }
53
54 inline Status& Status::operator=(Status&& other) noexcept {
55 unref(_error);
56 _error = other._error;
57 other._error = nullptr;
58 return *this;
59 }
60
~Status()61 inline Status::~Status() {
62 unref(_error);
63 }
64
isOK()65 inline bool Status::isOK() const {
66 return !_error;
67 }
68
code()69 inline ErrorCodes::Error Status::code() const {
70 return _error ? _error->code : ErrorCodes::OK;
71 }
72
codeString()73 inline std::string Status::codeString() const {
74 return ErrorCodes::errorString(code());
75 }
76
refCount()77 inline AtomicUInt32::WordType Status::refCount() const {
78 return _error ? _error->refs.load() : 0;
79 }
80
Status()81 inline Status::Status() : _error(NULL) {}
82
ref(ErrorInfo * error)83 inline void Status::ref(ErrorInfo* error) {
84 if (error)
85 error->refs.fetchAndAdd(1);
86 }
87
unref(ErrorInfo * error)88 inline void Status::unref(ErrorInfo* error) {
89 if (error && (error->refs.subtractAndFetch(1) == 0))
90 delete error;
91 }
92
93 inline bool operator==(const ErrorCodes::Error lhs, const Status& rhs) {
94 return rhs == lhs;
95 }
96
97 inline bool operator!=(const ErrorCodes::Error lhs, const Status& rhs) {
98 return rhs != lhs;
99 }
100
101 } // namespace mongo
102