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 "phonenumbers/base/synchronization/lock_boost.h"
22#elif (__cplusplus >= 201103L) && defined(I18N_PHONENUMBERS_USE_STDMUTEX)
23// C++11 Lock implementation based on std::mutex.
24#include "phonenumbers/base/synchronization/lock_stdmutex.h"
25#elif defined(__linux__) || defined(__APPLE__) || defined(I18N_PHONENUMBERS_HAVE_POSIX_THREAD)
26#include "phonenumbers/base/synchronization/lock_posix.h"
27#elif defined(WIN32)
28#include "phonenumbers/base/synchronization/lock_win32.h"
29#else
30#include "phonenumbers/base/synchronization/lock_unsafe.h"
31#endif
32
33// lock_boost.h comes with its own AutoLock.
34#if !defined(I18N_PHONENUMBERS_USE_BOOST)
35namespace i18n {
36namespace phonenumbers {
37
38class AutoLock {
39 public:
40  AutoLock(Lock& lock) : lock_(lock) {
41    lock_.Acquire();
42  }
43
44  ~AutoLock() {
45    lock_.Release();
46  }
47
48 private:
49  Lock& lock_;
50};
51
52}  // namespace phonenumbers
53}  // namespace i18n
54#endif  // !I18N_PHONENUMBERS_USE_BOOST
55
56#endif  // I18N_PHONENUMBERS_BASE_SYNCHRONIZATION_LOCK_H_
57