/usr/include/phonenumbers/base/synchronization/lock_posix.h is in libphonenumber-dev 7.1.0-5ubuntu5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 | // Copyright (C) 2013 The Libphonenumber Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Author: Philippe Liard
#ifndef I18N_PHONENUMBERS_BASE_SYNCHRONIZATION_LOCK_POSIX_H_
#define I18N_PHONENUMBERS_BASE_SYNCHRONIZATION_LOCK_POSIX_H_
#include <pthread.h>
#include "phonenumbers/base/basictypes.h"
#include "phonenumbers/base/logging.h"
namespace i18n {
namespace phonenumbers {
class Lock {
public:
Lock() {
const int ret = pthread_mutex_init(&mutex_, NULL);
(void) ret;
DCHECK_EQ(0, ret);
}
~Lock() {
const int ret = pthread_mutex_destroy(&mutex_);
(void) ret;
DCHECK_EQ(0, ret);
}
void Acquire() const {
int ret = pthread_mutex_lock(&mutex_);
(void) ret;
DCHECK_EQ(0, ret);
}
void Release() const {
int ret = pthread_mutex_unlock(&mutex_);
(void) ret;
DCHECK_EQ(0, ret);
}
private:
DISALLOW_COPY_AND_ASSIGN(Lock);
mutable pthread_mutex_t mutex_;
};
} // namespace phonenumbers
} // namespace i18n
#endif // I18N_PHONENUMBERS_BASE_SYNCHRONIZATION_LOCK_POSIX_H_
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