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13dfceff48
* common: format AlignedMalloc.cpp * common: format AppTrait.h * common: format Assertions.h * common: format CheckedStaticBox * common: format Console * common: format Dependencies.h * common: format EmbeddedImage * common: format EventSource * common: format Exceptions * common: format FastFormatString.cpp * common: format General.h * common: format InitInterface * common: format MathUtils.h * common: format MemsetFast/MemcpyFast * common: format Mutex.cpp * common: format PageFaultSource.h * common: format Path.h * common: format PathUtils.cpp * common: format Pcsx2Types.h * common: format Perf * common: format PersistentThread.h * common: format RwMutex * common: format SafeArray * common: format ScopedAlloc.h * common: format ScopedPtrMT.h * common: format Semaphore.cpp * common: format StringHelpers * common: format ThreadTools.cpp * common: format Threading.h * common: format ThreadingDialogs * common: format ThreadingInternal.h * common: format TraceLog.h * common: format VirtualMemory.cpp * common: format pxCheckBox * common: format pxEvents.h * common: format pxForwardDefs.h * common: format pxRadioPanel * common: format pxStaticText * common: format pxStreams * common: format pxTranslate.cpp * common: format pxWindowTextWriter.cpp * common: format wxAppWithHelpers * common: format wxBaseTools.h * common: format wxGuiTools * common: format wxHelpers.cpp * common: format Darwin directory * common: format Linux directory * common: format Windows directory * common: format LnxCpuDetect.cpp * common: format WinCpuDetect.cpp * common: format bmi.cpp * common: format cpudetect.cpp * common: format cpu_detect_internal.h * common: format fpu.cpp * common: format groups.cpp * common: format instructions.h * common: format internal.h * common: format jmp.cpp * common: format legacy.cpp * common: format legacy_instructions.h * common: format legacy_internal.h * common: format movs.cpp * common: format simd.cpp * common: format tools.h * common: format x86emitter.cpp * common: format x86types.h * common: format bmi.h * common: format dwshift.h * common: format group1.h group2.h group3.h * common: format incdec.h * common: format jmpcall.h * common: format movs.h * common: format simd_arithmetic.h * common: format simd_comparisons.h * common: format simd_helpers.h * common: format simd_moremovs.h * common: format simd_shufflepack.h * common: format simd_templated_helpers.h * common: format test.h
141 lines
3.2 KiB
C++
141 lines
3.2 KiB
C++
/* PCSX2 - PS2 Emulator for PCs
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* Copyright (C) 2002-2010 PCSX2 Dev Team
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*
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* PCSX2 is free software: you can redistribute it and/or modify it under the terms
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* of the GNU Lesser General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with PCSX2.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "Threading.h"
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using Threading::ScopedLock;
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// --------------------------------------------------------------------------------------
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// ScopedPtrMT
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// --------------------------------------------------------------------------------------
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template <typename T>
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class ScopedPtrMT
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{
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DeclareNoncopyableObject(ScopedPtrMT);
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protected:
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std::atomic<T*> m_ptr;
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Threading::Mutex m_mtx;
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public:
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typedef T element_type;
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wxEXPLICIT ScopedPtrMT(T* ptr = nullptr)
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{
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m_ptr = ptr;
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}
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~ScopedPtrMT() { _Delete_unlocked(); }
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ScopedPtrMT& Reassign(T* ptr = nullptr)
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{
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T* doh = m_ptr.exchange(ptr);
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if (ptr != doh)
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delete doh;
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return *this;
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}
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ScopedPtrMT& Delete() noexcept
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{
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ScopedLock lock(m_mtx);
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_Delete_unlocked();
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}
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// Removes the pointer from scoped management, but does not delete!
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// (ScopedPtr will be nullptr after this method)
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T* DetachPtr()
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{
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ScopedLock lock(m_mtx);
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return m_ptr.exchange(nullptr);
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}
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// Returns the managed pointer. Can return nullptr as a valid result if the ScopedPtrMT
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// has no object in management.
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T* GetPtr() const
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{
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return m_ptr;
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}
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void SwapPtr(ScopedPtrMT& other)
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{
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ScopedLock lock(m_mtx);
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m_ptr.exchange(other.m_ptr.exchange(m_ptr.load()));
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T* const tmp = other.m_ptr;
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other.m_ptr = m_ptr;
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m_ptr = tmp;
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}
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// ----------------------------------------------------------------------------
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// ScopedPtrMT Operators
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// ----------------------------------------------------------------------------
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// I've decided to use the ATL's approach to pointer validity tests, opposed to
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// the wx/boost approach (which uses some bizarre member method pointer crap, and can't
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// allow the T* implicit casting.
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bool operator!() const noexcept
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{
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return m_ptr.load() == nullptr;
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}
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// Equality
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bool operator==(T* pT) const noexcept
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{
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return m_ptr == pT;
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}
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// Inequality
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bool operator!=(T* pT) const noexcept
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{
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return !operator==(pT);
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}
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// Convenient assignment operator. ScopedPtrMT = nullptr will issue an automatic deletion
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// of the managed pointer.
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ScopedPtrMT& operator=(T* src)
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{
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return Reassign(src);
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}
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#if 0
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operator T*() const
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{
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return m_ptr;
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}
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// Dereference operator, returns a handle to the managed pointer.
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// Generates a debug assertion if the object is nullptr!
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T& operator*() const
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{
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pxAssert(m_ptr != nullptr);
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return *m_ptr;
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}
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T* operator->() const
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{
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pxAssert(m_ptr != nullptr);
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return m_ptr;
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}
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#endif
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protected:
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void _Delete_unlocked() noexcept
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{
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delete m_ptr.exchange(nullptr);
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}
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};
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