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87 lines
3.2 KiB
C++
87 lines
3.2 KiB
C++
#ifndef STORM_HASH_TS_EXPORT_TABLE_SYNC_REUSE_HPP
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#define STORM_HASH_TS_EXPORT_TABLE_SYNC_REUSE_HPP
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#include "storm/hash/Hashkey.hpp"
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#include "storm/hash/TSExportTableSimpleReuse.hpp"
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template <class T, class THandle, class TLockedHandle, class TSync>
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class TSExportTableSyncReuse : public TSExportTableSimpleReuse<T, THandle> {
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public:
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// Virtual member functions
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virtual ~TSExportTableSyncReuse() = default;
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// Member functions
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void Delete(THandle handle);
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void DeleteUnlock(T* ptr, TLockedHandle lockedHandle);
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T* Lock(THandle handle, TLockedHandle* lockedHandlePtr, int32_t forWriting);
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T* NewLock(THandle* handlePtr, TLockedHandle* lockedHandlePtr);
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void Unlock(TLockedHandle lockedHandle);
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private:
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// Member variables
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TSync m_sync;
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// Member functions
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int32_t IsForWriting(TLockedHandle lockedHandle);
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void SyncEnterLock(TLockedHandle* lockedHandlePtr, int32_t forWriting);
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void SyncLeaveLock(TLockedHandle lockedHandle);
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};
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template <class T, class THandle, class TLockedHandle, class TSync>
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void TSExportTableSyncReuse<T, THandle, TLockedHandle, TSync>::Delete(THandle handle) {
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TLockedHandle lockedHandle;
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auto ptr = this->Lock(handle, &lockedHandle, 1);
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this->DeleteUnlock(ptr, lockedHandle);
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}
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template <class T, class THandle, class TLockedHandle, class TSync>
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void TSExportTableSyncReuse<T, THandle, TLockedHandle, TSync>::DeleteUnlock(T* ptr, TLockedHandle lockedHandle) {
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this->TSExportTableSimpleReuse<T, THandle>::Delete(ptr);
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this->Unlock(lockedHandle);
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}
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template <class T, class THandle, class TLockedHandle, class TSync>
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int32_t TSExportTableSyncReuse<T, THandle, TLockedHandle, TSync>::IsForWriting(TLockedHandle lockedHandle) {
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return reinterpret_cast<intptr_t>(lockedHandle) == 1;
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}
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template <class T, class THandle, class TLockedHandle, class TSync>
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T* TSExportTableSyncReuse<T, THandle, TLockedHandle, TSync>::Lock(THandle handle, TLockedHandle* lockedHandlePtr, int32_t forWriting) {
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this->SyncEnterLock(lockedHandlePtr, forWriting);
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auto ptr = this->Ptr(handle);
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if (!ptr) {
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this->SyncLeaveLock(*lockedHandlePtr);
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*lockedHandlePtr = nullptr;
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return nullptr;
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}
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return ptr;
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}
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template <class T, class THandle, class TLockedHandle, class TSync>
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T* TSExportTableSyncReuse<T, THandle, TLockedHandle, TSync>::NewLock(THandle* handlePtr, TLockedHandle* lockedHandlePtr) {
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this->SyncEnterLock(lockedHandlePtr, 1);
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return this->New(handlePtr);
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}
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template <class T, class THandle, class TLockedHandle, class TSync>
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void TSExportTableSyncReuse<T, THandle, TLockedHandle, TSync>::SyncEnterLock(TLockedHandle* lockedHandlePtr, int32_t forWriting) {
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this->m_sync.Enter(forWriting);
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*lockedHandlePtr = reinterpret_cast<TLockedHandle>(forWriting ? 1 : -1);
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}
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template <class T, class THandle, class TLockedHandle, class TSync>
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void TSExportTableSyncReuse<T, THandle, TLockedHandle, TSync>::SyncLeaveLock(TLockedHandle lockedHandle) {
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if (lockedHandle) {
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this->m_sync.Leave(this->IsForWriting(lockedHandle));
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}
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}
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template <class T, class THandle, class TLockedHandle, class TSync>
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void TSExportTableSyncReuse<T, THandle, TLockedHandle, TSync>::Unlock(TLockedHandle lockedHandle) {
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this->SyncLeaveLock(lockedHandle);
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}
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#endif
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