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library/cpp/messagebus/actor/what_thread_does_guard.h
40 строк
871 B
qkrorlqr
Initial NBS OpenSource export
28 апр 2023, 21:54
28 апр 2023, 21:54
783a858
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#pragma once #include "what_thread_does.h" template <class T> class TWhatThreadDoesAcquireGuard: public TNonCopyable { public: inline TWhatThreadDoesAcquireGuard(const T& t, const char* acquire) noexcept { Init(&t, acquire); } inline TWhatThreadDoesAcquireGuard(const T* t, const char* acquire) noexcept { Init(t, acquire); } inline ~TWhatThreadDoesAcquireGuard() { Release(); } inline void Release() noexcept { if (WasAcquired()) { const_cast<T*>(T_)->Release(); T_ = nullptr; } } inline bool WasAcquired() const noexcept { return T_ != nullptr; } private: inline void Init(const T* t, const char* acquire) noexcept { T_ = const_cast<T*>(t); TWhatThreadDoesPushPop pp(acquire); T_->Acquire(); } private: T* T_; };