diff options
Diffstat (limited to 'include/llvm/Support/UniqueLock.h')
| -rw-r--r-- | include/llvm/Support/UniqueLock.h | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/include/llvm/Support/UniqueLock.h b/include/llvm/Support/UniqueLock.h index 529284d3868b..b4675f4b43ae 100644 --- a/include/llvm/Support/UniqueLock.h +++ b/include/llvm/Support/UniqueLock.h @@ -1,4 +1,4 @@ -//===-- Support/UniqueLock.h - Acquire/Release Mutex In Scope ---*- C++ -*-===// +//===- Support/UniqueLock.h - Acquire/Release Mutex In Scope ----*- C++ -*-===// // // The LLVM Compiler Infrastructure // @@ -15,9 +15,10 @@ #ifndef LLVM_SUPPORT_UNIQUE_LOCK_H #define LLVM_SUPPORT_UNIQUE_LOCK_H -#include "llvm/Support/Mutex.h" +#include <cassert> namespace llvm { + /// A pared-down imitation of std::unique_lock from C++11. Contrary to the /// name, it's really more of a wrapper for a lock. It may or may not have /// an associated mutex, which is guaranteed to be locked upon creation @@ -26,14 +27,14 @@ namespace llvm { /// @brief Guard a section of code with a mutex. template<typename MutexT> class unique_lock { - MutexT *M; - bool locked; + MutexT *M = nullptr; + bool locked = false; - unique_lock(const unique_lock &) = delete; - void operator=(const unique_lock &) = delete; public: - unique_lock() : M(nullptr), locked(false) {} + unique_lock() = default; explicit unique_lock(MutexT &m) : M(&m), locked(true) { M->lock(); } + unique_lock(const unique_lock &) = delete; + unique_lock &operator=(const unique_lock &) = delete; void operator=(unique_lock &&o) { if (owns_lock()) @@ -62,6 +63,7 @@ namespace llvm { bool owns_lock() { return locked; } }; -} + +} // end namespace llvm #endif // LLVM_SUPPORT_UNIQUE_LOCK_H |