Cross Reference: /vbox/src/VBox/Runtime/generic/semrw-lockless-generic.cpp

Lines Matching refs:u64State
68     uint64_t volatile       u64State;
137             pThis->u64State             = 0;
188     Assert(!(ASMAtomicReadU64(&pThis->u64State) & (RTSEMRW_CNT_RD_MASK | RTSEMRW_CNT_WR_MASK)));
264     uint64_t u64State    = ASMAtomicReadU64(&pThis->u64State);
265     uint64_t u64OldState = u64State;
269         if ((u64State & RTSEMRW_DIR_MASK) == (RTSEMRW_DIR_READ << RTSEMRW_DIR_SHIFT))
272             uint64_t c = (u64State & RTSEMRW_CNT_RD_MASK) >> RTSEMRW_CNT_RD_SHIFT;
275             u64State &= ~RTSEMRW_CNT_RD_MASK;
276             u64State |= c << RTSEMRW_CNT_RD_SHIFT;
277             if (ASMAtomicCmpXchgU64(&pThis->u64State, u64State, u64OldState))
285         else if ((u64State & (RTSEMRW_CNT_RD_MASK | RTSEMRW_CNT_WR_MASK)) == 0)
288             u64State &= ~(RTSEMRW_CNT_RD_MASK | RTSEMRW_CNT_WR_MASK | RTSEMRW_DIR_MASK);
289             u64State |= (UINT64_C(1) << RTSEMRW_CNT_RD_SHIFT) | (RTSEMRW_DIR_READ << RTSEMRW_DIR_SHIFT);
290             if (ASMAtomicCmpXchgU64(&pThis->u64State, u64State, u64OldState))
322             uint64_t c = (u64State & RTSEMRW_CNT_RD_MASK) >> RTSEMRW_CNT_RD_SHIFT;
326             uint64_t cWait = (u64State & RTSEMRW_WAIT_CNT_RD_MASK) >> RTSEMRW_WAIT_CNT_RD_SHIFT;
331             u64State &= ~(RTSEMRW_CNT_RD_MASK | RTSEMRW_WAIT_CNT_RD_MASK);
332             u64State |= (c << RTSEMRW_CNT_RD_SHIFT) | (cWait << RTSEMRW_WAIT_CNT_RD_SHIFT);
334             if (ASMAtomicCmpXchgU64(&pThis->u64State, u64State, u64OldState))
361                             u64OldState = u64State = ASMAtomicReadU64(&pThis->u64State);
362                             c = (u64State & RTSEMRW_CNT_RD_MASK) >> RTSEMRW_CNT_RD_SHIFT; Assert(c > 0);
364                             cWait = (u64State & RTSEMRW_WAIT_CNT_RD_MASK) >> RTSEMRW_WAIT_CNT_RD_SHIFT; Assert(cWait > 0);
366                             u64State &= ~(RTSEMRW_CNT_RD_MASK | RTSEMRW_WAIT_CNT_RD_MASK);
367                             u64State |= (c << RTSEMRW_CNT_RD_SHIFT) | (cWait << RTSEMRW_WAIT_CNT_RD_SHIFT);
368                             if (ASMAtomicCmpXchgU64(&pThis->u64State, u64State, u64OldState))
375                     u64State = ASMAtomicReadU64(&pThis->u64State);
376                     if ((u64State & RTSEMRW_DIR_MASK) == (RTSEMRW_DIR_READ << RTSEMRW_DIR_SHIFT))
384                     u64OldState = u64State;
386                     cWait = (u64State & RTSEMRW_WAIT_CNT_RD_MASK) >> RTSEMRW_WAIT_CNT_RD_SHIFT;
389                     u64State &= ~RTSEMRW_WAIT_CNT_RD_MASK;
390                     u64State |= cWait << RTSEMRW_WAIT_CNT_RD_SHIFT;
392                     if (ASMAtomicCmpXchgU64(&pThis->u64State, u64State, u64OldState))
404                     u64State = ASMAtomicReadU64(&pThis->u64State);
418         u64State = ASMAtomicReadU64(&pThis->u64State);
419         u64OldState = u64State;
423     Assert((ASMAtomicReadU64(&pThis->u64State) & RTSEMRW_DIR_MASK) == (RTSEMRW_DIR_READ << RTSEMRW_DIR_SHIFT));
482     uint64_t u64State    = ASMAtomicReadU64(&pThis->u64State);
483     uint64_t u64OldState = u64State;
484     if ((u64State & RTSEMRW_DIR_MASK) == (RTSEMRW_DIR_READ << RTSEMRW_DIR_SHIFT))
493             uint64_t c = (u64State & RTSEMRW_CNT_RD_MASK) >> RTSEMRW_CNT_RD_SHIFT;
498                 || (u64State & RTSEMRW_CNT_WD_MASK) == 0)
501                 u64State &= ~RTSEMRW_CNT_RD_MASK;
502                 u64State |= c << RTSEMRW_CNT_RD_SHIFT;
503                 if (ASMAtomicCmpXchgU64(&pThis->u64State, u64State, u64OldState))
509                 u64State &= ~(RTSEMRW_CNT_RD_MASK | RTSEMRW_DIR_MASK);
510                 u64State |= RTSEMRW_DIR_WRITE << RTSEMRW_DIR_SHIFT;
511                 if (ASMAtomicCmpXchgU64(&pThis->u64State, u64State, u64OldState))
520             u64State = ASMAtomicReadU64(&pThis->u64State);
521             u64OldState = u64State;
574         Assert((ASMAtomicReadU64(&pThis->u64State) & RTSEMRW_DIR_MASK) == (RTSEMRW_DIR_WRITE << RTSEMRW_DIR_SHIFT));
588     uint64_t u64State    = ASMAtomicReadU64(&pThis->u64State);
589     uint64_t u64OldState = u64State;
593         if (   (u64State & RTSEMRW_DIR_MASK) == (RTSEMRW_DIR_WRITE << RTSEMRW_DIR_SHIFT)
594             || (u64State & (RTSEMRW_CNT_RD_MASK | RTSEMRW_CNT_WR_MASK)) != 0)
597             uint64_t c = (u64State & RTSEMRW_CNT_WR_MASK) >> RTSEMRW_CNT_WR_SHIFT;
600             u64State &= ~RTSEMRW_CNT_WR_MASK;
601             u64State |= c << RTSEMRW_CNT_WR_SHIFT;
602             if (ASMAtomicCmpXchgU64(&pThis->u64State, u64State, u64OldState))
605         else if ((u64State & (RTSEMRW_CNT_RD_MASK | RTSEMRW_CNT_WR_MASK)) == 0)
608             u64State &= ~(RTSEMRW_CNT_RD_MASK | RTSEMRW_CNT_WR_MASK | RTSEMRW_DIR_MASK);
609             u64State |= (UINT64_C(1) << RTSEMRW_CNT_WR_SHIFT) | (RTSEMRW_DIR_WRITE << RTSEMRW_DIR_SHIFT);
610             if (ASMAtomicCmpXchgU64(&pThis->u64State, u64State, u64OldState))
619             uint64_t c = (u64State & RTSEMRW_CNT_WR_MASK) >> RTSEMRW_CNT_WR_SHIFT;
622             u64State &= ~RTSEMRW_CNT_WR_MASK;
623             u64State |= c << RTSEMRW_CNT_WR_SHIFT;
624             if (ASMAtomicCmpXchgU64(&pThis->u64State, u64State, u64OldState))
632         u64State = ASMAtomicReadU64(&pThis->u64State);
633         u64OldState = u64State;
640     bool fDone = (u64State & RTSEMRW_DIR_MASK) == (RTSEMRW_DIR_WRITE << RTSEMRW_DIR_SHIFT)
641               && (  ((u64State & RTSEMRW_CNT_WR_MASK) >> RTSEMRW_CNT_WR_SHIFT) == 1
682                     u64OldState = u64State = ASMAtomicReadU64(&pThis->u64State);
683                     uint64_t c = (u64State & RTSEMRW_CNT_WR_MASK) >> RTSEMRW_CNT_WR_SHIFT; Assert(c > 0);
685                     u64State &= ~RTSEMRW_CNT_WR_MASK;
686                     u64State |= c << RTSEMRW_CNT_WR_SHIFT;
687                     if (ASMAtomicCmpXchgU64(&pThis->u64State, u64State, u64OldState))
693             u64State = ASMAtomicReadU64(&pThis->u64State);
694             if ((u64State & RTSEMRW_DIR_MASK) == (RTSEMRW_DIR_WRITE << RTSEMRW_DIR_SHIFT))
707     Assert((ASMAtomicReadU64(&pThis->u64State) & RTSEMRW_DIR_MASK) == (RTSEMRW_DIR_WRITE << RTSEMRW_DIR_SHIFT));
792             uint64_t u64State    = ASMAtomicReadU64(&pThis->u64State);
793             uint64_t u64OldState = u64State;
795             uint64_t c = (u64State & RTSEMRW_CNT_WR_MASK) >> RTSEMRW_CNT_WR_SHIFT;
800                 || (u64State & RTSEMRW_CNT_RD_MASK) == 0)
803                 u64State &= ~RTSEMRW_CNT_WR_MASK;
804                 u64State |= c << RTSEMRW_CNT_WR_SHIFT;
805                 if (ASMAtomicCmpXchgU64(&pThis->u64State, u64State, u64OldState))
818                 u64State &= ~(RTSEMRW_CNT_WR_MASK | RTSEMRW_DIR_MASK);
819                 u64State |= RTSEMRW_DIR_READ << RTSEMRW_DIR_SHIFT;
820                 if (ASMAtomicCmpXchgU64(&pThis->u64State, u64State, u64OldState))
883     uint64_t u64State = ASMAtomicReadU64(&pThis->u64State);
884     if ((u64State & RTSEMRW_DIR_MASK) == (RTSEMRW_DIR_WRITE << RTSEMRW_DIR_SHIFT))
899     if (!(u64State & RTSEMRW_CNT_RD_MASK))
965     uint64_t u64State = ASMAtomicReadU64(&pThis->u64State);
966     if ((u64State & RTSEMRW_DIR_MASK) != (RTSEMRW_DIR_READ << RTSEMRW_DIR_SHIFT))
968     return (u64State & RTSEMRW_CNT_RD_MASK) >> RTSEMRW_CNT_RD_SHIFT;