1// Copyright (C) 2013 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_POSIX_H_
18#define I18N_PHONENUMBERS_BASE_SYNCHRONIZATION_LOCK_POSIX_H_
19
20#include <pthread.h>
21
22#include "phonenumbers/base/basictypes.h"
23#include "phonenumbers/base/logging.h"
24
25namespace i18n {
26namespace phonenumbers {
27
28class Lock {
29 public:
30  Lock() {
31    const int ret = pthread_mutex_init(&mutex_, NULL);
32    (void) ret;
33    DCHECK_EQ(0, ret);
34  }
35
36  ~Lock() {
37    const int ret = pthread_mutex_destroy(&mutex_);
38    (void) ret;
39    DCHECK_EQ(0, ret);
40  }
41
42  void Acquire() const {
43    int ret = pthread_mutex_lock(&mutex_);
44    (void) ret;
45    DCHECK_EQ(0, ret);
46  }
47
48  void Release() const {
49    int ret = pthread_mutex_unlock(&mutex_);
50    (void) ret;
51    DCHECK_EQ(0, ret);
52  }
53
54 private:
55  DISALLOW_COPY_AND_ASSIGN(Lock);
56
57  mutable pthread_mutex_t mutex_;
58};
59
60}  // namespace phonenumbers
61}  // namespace i18n
62
63#endif  // I18N_PHONENUMBERS_BASE_SYNCHRONIZATION_LOCK_POSIX_H_
64