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mapd_shared_mutex.h
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1 /*
2  * Copyright 2017 MapD Technologies, Inc.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef MAPD_SHARED_MUTEX
18 #define MAPD_SHARED_MUTEX
19 
20 #include <shared_mutex>
21 
22 #ifdef HAVE_FOLLY
23 #include <folly/SharedMutex.h>
24 using mapd_shared_mutex = folly::SharedMutex;
25 #else
26 using mapd_shared_mutex = std::shared_timed_mutex;
27 #endif // HAVE_FOLLY
28 
29 #define mapd_lock_guard std::lock_guard
30 #define mapd_unique_lock std::unique_lock
31 #define mapd_shared_lock std::shared_lock
32 
33 #endif // MAPD_SHARED_MUTEX
std::shared_timed_mutex mapd_shared_mutex