28 struct BackRefBlock : public BlockI {  struct
29     BackRefBlock *nextForUse;     // the next in the chain of blocks with free items  argument
33     BackRefBlock *nextRawMemBlock;  argument
41     BackRefBlock(const BackRefBlock *blockToUse, intptr_t num) :  in BackRefBlock()  function
51 …void zeroSet() { memset(static_cast<void*>(this+1), 0, BackRefBlock::bytes-sizeof(BackRefBlock)); }  in zeroSet()  argument
56 static const int BR_MAX_CNT = (BackRefBlock::bytes-sizeof(BackRefBlock))/sizeof(void*);
70     static const size_t mainSize = BackRefMain::bytes+leaves*BackRefBlock::bytes;
76     std::atomic<BackRefBlock*> active;         // if defined, use it for allocations
77     std::atomic<BackRefBlock*> listForUse;     // the chain of data blocks with free items
78     BackRefBlock  *allRawMemBlocks;
82     BackRefBlock  *backRefBl[1];   // the real size of the array is dataSz
84     BackRefBlock *findFreeBlock();
85     void          addToForUseList(BackRefBlock *bl);
86     void          initEmptyBackRefBlock(BackRefBlock *newBl);
91     = 1+(BackRefMain::bytes-sizeof(BackRefMain))/sizeof(BackRefBlock*);
111 …  BackRefBlock *bl = (BackRefBlock*)((uintptr_t)main + BackRefMain::bytes + i*BackRefBlock::bytes);  in initBackRefMain()
128 …  for (BackRefBlock *curr = backRefMain.load(std::memory_order_relaxed)->allRawMemBlocks; curr; ) {  in destroyBackRefMain()
129             BackRefBlock *next = curr->nextRawMemBlock;  in destroyBackRefMain()
141 void BackRefMain::addToForUseList(BackRefBlock *bl)  in addToForUseList()
148 void BackRefMain::initEmptyBackRefBlock(BackRefBlock *newBl)  in initEmptyBackRefBlock()
151     new (newBl) BackRefBlock(newBl, nextLU);  in initEmptyBackRefBlock()
162     static_assert(!(blockSpaceSize % BackRefBlock::bytes),  in requestNewSpace()
173     BackRefBlock *newBl = (BackRefBlock*)backend->getBackRefSpace(blockSpaceSize, &isRawMemUsed);  in requestNewSpace()
177     for (BackRefBlock *bl = newBl; (uintptr_t)bl < (uintptr_t)newBl + blockSpaceSize;  in requestNewSpace()
178          bl = (BackRefBlock*)((uintptr_t)bl + BackRefBlock::bytes)) {  in requestNewSpace()
191     int blocksToUse = min(numOfUnusedIdxs, blockSpaceSize / BackRefBlock::bytes);  in requestNewSpace()
199 …for (BackRefBlock *bl = newBl; blocksToUse>0; bl = (BackRefBlock*)((uintptr_t)bl + BackRefBlock::b…  in requestNewSpace()
210 BackRefBlock *BackRefMain::findFreeBlock()  in findFreeBlock()
212     BackRefBlock* active_block = active.load(std::memory_order_acquire);  in findFreeBlock()
248             + sizeof(BackRefBlock) + backRefIdx.getOffset() * sizeof(std::atomic<void*>)  in getBackRef()
258 …+ sizeof(BackRefBlock) + backRefIdx.getOffset() * sizeof(void*)))->store(newPtr, std::memory_order…  in setBackRef()
263     BackRefBlock *blockToUse;  in newBackRef()
290                                   < (uintptr_t)blockToUse+sizeof(BackRefBlock),  in newBackRef()
311         ((uintptr_t)toUse - ((uintptr_t)blockToUse + sizeof(BackRefBlock)))/sizeof(void*);  in newBackRef()
325 …BackRefBlock *currBlock = backRefMain.load(std::memory_order_relaxed)->backRefBl[backRefIdx.getMai…  in removeBackRef()
326 …d::atomic<void*>& backRefEntry = *(std::atomic<void*>*)((uintptr_t)currBlock + sizeof(BackRefBlock)  in removeBackRef()