1// Copyright (C) 2011 The Libphonenumber Authors
2//
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// Author: Philippe Liard
16
17#ifndef I18N_PHONENUMBERS_BASE_SYNCHRONIZATION_LOCK_H_
18#define I18N_PHONENUMBERS_BASE_SYNCHRONIZATION_LOCK_H_
19
20#if defined(I18N_PHONENUMBERS_USE_BOOST)
21#include <boost/thread/mutex.hpp>
22
23namespace i18n {
24namespace phonenumbers {
25
26typedef boost::mutex Lock;
27typedef boost::mutex::scoped_lock AutoLock;
28
29}  // namespace phonenumbers
30}  // namespace i18n
31
32#else  // I18N_PHONENUMBERS_USE_BOOST
33
34#include "phonenumbers/base/logging.h"
35#include "phonenumbers/base/thread_checker.h"
36
37// Dummy lock implementation on non-POSIX platforms. If you are running on a
38// different platform and care about thread-safety, please compile with
39// -DI18N_PHONENUMBERS_USE_BOOST.
40#if !defined(__linux__) && !defined(__APPLE__)
41
42namespace i18n {
43namespace phonenumbers {
44
45class Lock {
46 public:
47  Lock() : thread_checker_() {}
48
49  void Acquire() const {
50    DCHECK(thread_checker_.CalledOnValidThread());
51  }
52
53  void Release() const {
54    DCHECK(thread_checker_.CalledOnValidThread());
55  }
56
57 private:
58  const ThreadChecker thread_checker_;
59};
60
61}  // namespace phonenumbers
62}  // namespace i18n
63
64#else
65#include "phonenumbers/base/synchronization/lock_posix.h"
66#endif
67
68namespace i18n {
69namespace phonenumbers {
70
71class AutoLock {
72 public:
73  AutoLock(Lock& lock) : lock_(lock) {
74    lock_.Acquire();
75  }
76
77  ~AutoLock() {
78    lock_.Release();
79  }
80
81 private:
82  Lock& lock_;
83};
84
85}  // namespace phonenumbers
86}  // namespace i18n
87
88#endif  // I18N_PHONENUMBERS_USE_BOOST
89#endif  // I18N_PHONENUMBERS_BASE_SYNCHRONIZATION_LOCK_H_
90