/Users/deen/code/yugabyte-db/src/yb/util/debug/lock_debug.h
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1 | | // Copyright (c) YugaByte, Inc. |
2 | | // |
3 | | // Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except |
4 | | // in compliance with the License. You may obtain a copy of the License at |
5 | | // |
6 | | // http://www.apache.org/licenses/LICENSE-2.0 |
7 | | // |
8 | | // Unless required by applicable law or agreed to in writing, software distributed under the License |
9 | | // is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
10 | | // or implied. See the License for the specific language governing permissions and limitations |
11 | | // under the License. |
12 | | // |
13 | | |
14 | | #ifndef YB_UTIL_DEBUG_LOCK_DEBUG_H |
15 | | #define YB_UTIL_DEBUG_LOCK_DEBUG_H |
16 | | |
17 | | #include "yb/gutil/thread_annotations.h" |
18 | | |
19 | | namespace yb { |
20 | | |
21 | | class NonRecursiveSharedLockBase { |
22 | | public: |
23 | | explicit NonRecursiveSharedLockBase(void* mutex); |
24 | | ~NonRecursiveSharedLockBase(); |
25 | | |
26 | | protected: |
27 | 115M | void* mutex() const { |
28 | 115M | return mutex_; |
29 | 115M | } |
30 | | |
31 | | private: |
32 | | void* mutex_; |
33 | | NonRecursiveSharedLockBase* next_; |
34 | | }; |
35 | | |
36 | | template<class Mutex> |
37 | | class SCOPED_CAPABILITY NonRecursiveSharedLock : public NonRecursiveSharedLockBase { |
38 | | public: |
39 | | explicit NonRecursiveSharedLock(Mutex& mutex) ACQUIRE_SHARED(mutex) // NOLINT |
40 | 115M | : NonRecursiveSharedLockBase(&mutex) { |
41 | 115M | mutex.lock_shared(); |
42 | 115M | } |
43 | | |
44 | 115M | ~NonRecursiveSharedLock() RELEASE() { |
45 | 115M | static_cast<Mutex*>(mutex())->unlock_shared(); |
46 | 115M | } |
47 | | }; |
48 | | |
49 | | } // namespace yb |
50 | | |
51 | | #endif // YB_UTIL_DEBUG_LOCK_DEBUG_H |