/**
* Flush pending queues.
* This is a forced action callback.
*
* @param pVM Pointer to the VM.
* @thread Emulation thread only.
*/
VMMR3_INT_DECL(void) PDMR3QueueFlushAll(PVM pVM)
{
VM_ASSERT_EMT(pVM);
LogFlow(("PDMR3QueuesFlush:\n"));
/*
* Only let one EMT flushing queues at any one time to preserve the order
* and to avoid wasting time. The FF is always cleared here, because it's
* only used to get someones attention. Queue inserts occurring during the
* flush are caught using the pending bit.
*
* Note! We must check the force action and pending flags after clearing
* the active bit!
*/
VM_FF_CLEAR(pVM, VM_FF_PDM_QUEUES);
while (!ASMAtomicBitTestAndSet(&pVM->pdm.s.fQueueFlushing, PDM_QUEUE_FLUSH_FLAG_ACTIVE_BIT))
{
ASMAtomicBitClear(&pVM->pdm.s.fQueueFlushing, PDM_QUEUE_FLUSH_FLAG_PENDING_BIT);
for (PPDMQUEUE pCur = pVM->pUVM->pdm.s.pQueuesForced; pCur; pCur = pCur->pNext)
if ( pCur->pPendingR3
|| pCur->pPendingR0
|| pCur->pPendingRC)
pdmR3QueueFlush(pCur);
ASMAtomicBitClear(&pVM->pdm.s.fQueueFlushing, PDM_QUEUE_FLUSH_FLAG_ACTIVE_BIT);
/* We're done if there were no inserts while we were busy. */
if ( !ASMBitTest(&pVM->pdm.s.fQueueFlushing, PDM_QUEUE_FLUSH_FLAG_PENDING_BIT)
&& !VM_FF_ISPENDING(pVM, VM_FF_PDM_QUEUES))
break;
VM_FF_CLEAR(pVM, VM_FF_PDM_QUEUES);
}
}
DECLINLINE(int) vboxNetAdpGetUnitByName(const char *pcszName)
{
uint32_t iUnit = RTStrToUInt32(pcszName + sizeof(VBOXNETADP_NAME) - 1);
bool fOld;
if (iUnit >= VBOXNETADP_MAX_UNITS)
return -1;
fOld = ASMAtomicBitTestAndSet(g_aUnits, iUnit);
return fOld ? -1 : (int)iUnit;
}
static uint32_t test2AllocId(struct TestMap2 *p2)
{
/*
* Scan sequentially from the last one + 1.
*/
int32_t idChunk = ++p2->idChunkPrev;
if ( (uint32_t)idChunk < TEST2_ID_LAST
&& idChunk > NIL_TEST2_ID)
{
idChunk = ASMBitNextClear(&p2->bmChunkId[0], TEST2_ID_LAST + 1, idChunk);
if (idChunk > NIL_TEST2_ID)
{
if (ASMAtomicBitTestAndSet(&p2->bmChunkId[0], idChunk))
{
RTTestFailed(NIL_RTTEST, "line %d: idChunk=%#x", __LINE__, idChunk);
return NIL_TEST2_ID;
}
return p2->idChunkPrev = idChunk;
}
}
/*
* Ok, scan from the start.
*/
idChunk = ASMBitFirstClear(&p2->bmChunkId[0], TEST2_ID_LAST + 1);
if (idChunk <= NIL_TEST2_ID)
{
RTTestFailed(NIL_RTTEST, "line %d: idChunk=%#x", __LINE__, idChunk);
return NIL_TEST2_ID;
}
if (ASMAtomicBitTestAndSet(&p2->bmChunkId[0], idChunk))
{
RTTestFailed(NIL_RTTEST, "line %d: idChunk=%#x", __LINE__, idChunk);
return NIL_TEST2_ID;
}
return p2->idChunkPrev = idChunk;
}
DECLINLINE(int) vboxNetAdpGetNextAvailableUnit(void)
{
bool fOld;
int iUnit;
/* There is absolutely no chance that all units are taken */
do {
iUnit = ASMBitFirstClear(g_aUnits, VBOXNETADP_MAX_UNITS);
if (iUnit < 0)
break;
fOld = ASMAtomicBitTestAndSet(g_aUnits, iUnit);
} while (fOld);
return iUnit;
}
RTR3DECL(int) RTTlsAllocEx(PRTTLS piTls, PFNRTTLSDTOR pfnDestructor)
{
for (unsigned i = 0; i < 128; i++)
{
int iTls = ASMBitFirstClear(&g_au32AllocatedBitmap[0], RTTHREAD_TLS_ENTRIES);
if (iTls < 0)
{
*piTls = NIL_RTTLS;
return VERR_NO_MEMORY;
}
if (!ASMAtomicBitTestAndSet(&g_au32AllocatedBitmap[0], iTls))
{
g_apfnDestructors[iTls] = pfnDestructor;
*piTls = iTls;
return VINF_SUCCESS;
}
}
AssertFailed();
return VERR_NO_MEMORY;
}
int main()
{
/*
* Init the runtime and stuff.
*/
RTTEST hTest;
int rc = RTTestInitAndCreate("tstRTBitOperations", &hTest);
if (rc)
return rc;
RTTestBanner(hTest);
int i;
int j;
int k;
/*
* Tests
*/
struct TestMap
{
uint32_t au32[4];
};
#if 0
struct TestMap sTest;
struct TestMap *p = &sTest;
#else
struct TestMap *p = (struct TestMap *)RTTestGuardedAllocTail(hTest, sizeof(*p));
#endif
#define DUMP() RTTestPrintf(hTest, RTTESTLVL_INFO, "au32={%08x,%08x,%08x,%08x}", p->au32[0], p->au32[1], p->au32[2], p->au32[3])
#define CHECK(expr) do { if (!(expr)) { RTTestFailed(hTest, "line %d: %s", __LINE__, #expr); DUMP(); } CHECK_GUARD(s); } while (0)
#define CHECK_BIT(expr, b1) do { if (!(expr)) { RTTestFailed(hTest, "line %d, b1=%d: %s", __LINE__, b1, #expr); } CHECK_GUARD(s); } while (0)
#define CHECK_BIT2(expr, b1, b2) do { if (!(expr)) { RTTestFailed(hTest, "line %d, b1=%d b2=%d: %s", __LINE__, b1, b2, #expr); } CHECK_GUARD(s); } while (0)
#define CHECK_BIT3(expr, b1, b2, b3) do { if (!(expr)) { RTTestFailed(hTest, "line %d, b1=%d b2=%d b3=%d: %s", __LINE__, b1, b2, b3, #expr); } CHECK_GUARD(s); } while (0)
#define GUARD_MAP(p) do { } while (0)
#define CHECK_GUARD(p) do { } while (0)
#define MAP_CLEAR(p) do { RT_ZERO(*(p)); GUARD_MAP(p); } while (0)
#define MAP_SET(p) do { memset(p, 0xff, sizeof(*(p))); GUARD_MAP(p); } while (0)
/* self check. */
MAP_CLEAR(p);
CHECK_GUARD(p);
/* bit set */
MAP_CLEAR(p);
ASMBitSet(&p->au32[0], 0);
ASMBitSet(&p->au32[0], 31);
ASMBitSet(&p->au32[0], 65);
CHECK(p->au32[0] == 0x80000001U);
CHECK(p->au32[2] == 0x00000002U);
CHECK(ASMBitTestAndSet(&p->au32[0], 0) && p->au32[0] == 0x80000001U);
CHECK(!ASMBitTestAndSet(&p->au32[0], 16) && p->au32[0] == 0x80010001U);
CHECK(ASMBitTestAndSet(&p->au32[0], 16) && p->au32[0] == 0x80010001U);
CHECK(!ASMBitTestAndSet(&p->au32[0], 80) && p->au32[2] == 0x00010002U);
MAP_CLEAR(p);
ASMAtomicBitSet(&p->au32[0], 0);
ASMAtomicBitSet(&p->au32[0], 30);
ASMAtomicBitSet(&p->au32[0], 64);
CHECK(p->au32[0] == 0x40000001U);
CHECK(p->au32[2] == 0x00000001U);
CHECK(ASMAtomicBitTestAndSet(&p->au32[0], 0) && p->au32[0] == 0x40000001U);
CHECK(!ASMAtomicBitTestAndSet(&p->au32[0], 16) && p->au32[0] == 0x40010001U);
CHECK(ASMAtomicBitTestAndSet(&p->au32[0], 16) && p->au32[0] == 0x40010001U);
CHECK(!ASMAtomicBitTestAndSet(&p->au32[0], 80) && p->au32[2] == 0x00010001U);
/* bit clear */
MAP_SET(p);
ASMBitClear(&p->au32[0], 0);
ASMBitClear(&p->au32[0], 31);
ASMBitClear(&p->au32[0], 65);
CHECK(p->au32[0] == ~0x80000001U);
CHECK(p->au32[2] == ~0x00000002U);
CHECK(!ASMBitTestAndClear(&p->au32[0], 0) && p->au32[0] == ~0x80000001U);
CHECK(ASMBitTestAndClear(&p->au32[0], 16) && p->au32[0] == ~0x80010001U);
CHECK(!ASMBitTestAndClear(&p->au32[0], 16) && p->au32[0] == ~0x80010001U);
CHECK(ASMBitTestAndClear(&p->au32[0], 80) && p->au32[2] == ~0x00010002U);
MAP_SET(p);
ASMAtomicBitClear(&p->au32[0], 0);
ASMAtomicBitClear(&p->au32[0], 30);
ASMAtomicBitClear(&p->au32[0], 64);
CHECK(p->au32[0] == ~0x40000001U);
CHECK(p->au32[2] == ~0x00000001U);
CHECK(!ASMAtomicBitTestAndClear(&p->au32[0], 0) && p->au32[0] == ~0x40000001U);
CHECK(ASMAtomicBitTestAndClear(&p->au32[0], 16) && p->au32[0] == ~0x40010001U);
CHECK(!ASMAtomicBitTestAndClear(&p->au32[0], 16) && p->au32[0] == ~0x40010001U);
CHECK(ASMAtomicBitTestAndClear(&p->au32[0], 80) && p->au32[2] == ~0x00010001U);
/* toggle */
MAP_SET(p);
ASMBitToggle(&p->au32[0], 0);
ASMBitToggle(&p->au32[0], 31);
ASMBitToggle(&p->au32[0], 65);
ASMBitToggle(&p->au32[0], 47);
ASMBitToggle(&p->au32[0], 47);
CHECK(p->au32[0] == ~0x80000001U);
CHECK(p->au32[2] == ~0x00000002U);
CHECK(!ASMBitTestAndToggle(&p->au32[0], 0) && p->au32[0] == ~0x80000000U);
CHECK(ASMBitTestAndToggle(&p->au32[0], 0) && p->au32[0] == ~0x80000001U);
CHECK(ASMBitTestAndToggle(&p->au32[0], 16) && p->au32[0] == ~0x80010001U);
CHECK(!ASMBitTestAndToggle(&p->au32[0], 16) && p->au32[0] == ~0x80000001U);
CHECK(ASMBitTestAndToggle(&p->au32[0], 80) && p->au32[2] == ~0x00010002U);
MAP_SET(p);
ASMAtomicBitToggle(&p->au32[0], 0);
ASMAtomicBitToggle(&p->au32[0], 30);
ASMAtomicBitToggle(&p->au32[0], 64);
ASMAtomicBitToggle(&p->au32[0], 47);
ASMAtomicBitToggle(&p->au32[0], 47);
CHECK(p->au32[0] == ~0x40000001U);
CHECK(p->au32[2] == ~0x00000001U);
CHECK(!ASMAtomicBitTestAndToggle(&p->au32[0], 0) && p->au32[0] == ~0x40000000U);
CHECK(ASMAtomicBitTestAndToggle(&p->au32[0], 0) && p->au32[0] == ~0x40000001U);
CHECK(ASMAtomicBitTestAndToggle(&p->au32[0], 16) && p->au32[0] == ~0x40010001U);
CHECK(!ASMAtomicBitTestAndToggle(&p->au32[0], 16) && p->au32[0] == ~0x40000001U);
CHECK(ASMAtomicBitTestAndToggle(&p->au32[0], 80) && p->au32[2] == ~0x00010001U);
/* test bit. */
for (i = 0; i < 128; i++)
{
MAP_SET(p);
CHECK_BIT(ASMBitTest(&p->au32[0], i), i);
ASMBitToggle(&p->au32[0], i);
CHECK_BIT(!ASMBitTest(&p->au32[0], i), i);
CHECK_BIT(!ASMBitTestAndToggle(&p->au32[0], i), i);
CHECK_BIT(ASMBitTest(&p->au32[0], i), i);
CHECK_BIT(ASMBitTestAndToggle(&p->au32[0], i), i);
CHECK_BIT(!ASMBitTest(&p->au32[0], i), i);
MAP_SET(p);
CHECK_BIT(ASMBitTest(&p->au32[0], i), i);
ASMAtomicBitToggle(&p->au32[0], i);
CHECK_BIT(!ASMBitTest(&p->au32[0], i), i);
CHECK_BIT(!ASMAtomicBitTestAndToggle(&p->au32[0], i), i);
CHECK_BIT(ASMBitTest(&p->au32[0], i), i);
CHECK_BIT(ASMAtomicBitTestAndToggle(&p->au32[0], i), i);
CHECK_BIT(!ASMBitTest(&p->au32[0], i), i);
}
/* bit searching */
MAP_SET(p);
CHECK(ASMBitFirstClear(&p->au32[0], sizeof(p->au32) * 8) == -1);
CHECK(ASMBitFirstSet(&p->au32[0], sizeof(p->au32) * 8) == 0);
ASMBitClear(&p->au32[0], 1);
CHECK(ASMBitFirstClear(&p->au32[0], sizeof(p->au32) * 8) == 1);
CHECK(ASMBitFirstSet(&p->au32[0], sizeof(p->au32) * 8) == 0);
MAP_SET(p);
ASMBitClear(&p->au32[0], 95);
CHECK(ASMBitFirstClear(&p->au32[0], sizeof(p->au32) * 8) == 95);
CHECK(ASMBitFirstSet(&p->au32[0], sizeof(p->au32) * 8) == 0);
MAP_SET(p);
ASMBitClear(&p->au32[0], 127);
CHECK(ASMBitFirstClear(&p->au32[0], sizeof(p->au32) * 8) == 127);
CHECK(ASMBitFirstSet(&p->au32[0], sizeof(p->au32) * 8) == 0);
CHECK(ASMBitNextSet(&p->au32[0], sizeof(p->au32) * 8, 0) == 1);
CHECK(ASMBitNextSet(&p->au32[0], sizeof(p->au32) * 8, 1) == 2);
CHECK(ASMBitNextSet(&p->au32[0], sizeof(p->au32) * 8, 2) == 3);
MAP_SET(p);
CHECK(ASMBitNextClear(&p->au32[0], sizeof(p->au32) * 8, 0) == -1);
ASMBitClear(&p->au32[0], 32);
CHECK(ASMBitNextClear(&p->au32[0], sizeof(p->au32) * 8, 32) == -1);
ASMBitClear(&p->au32[0], 88);
CHECK(ASMBitNextClear(&p->au32[0], sizeof(p->au32) * 8, 57) == 88);
MAP_SET(p);
ASMBitClear(&p->au32[0], 31);
ASMBitClear(&p->au32[0], 57);
ASMBitClear(&p->au32[0], 88);
ASMBitClear(&p->au32[0], 101);
ASMBitClear(&p->au32[0], 126);
ASMBitClear(&p->au32[0], 127);
CHECK(ASMBitFirstClear(&p->au32[0], sizeof(p->au32) * 8) == 31);
CHECK(ASMBitNextClear(&p->au32[0], sizeof(p->au32) * 8, 31) == 57);
CHECK(ASMBitNextClear(&p->au32[0], sizeof(p->au32) * 8, 57) == 88);
CHECK(ASMBitNextClear(&p->au32[0], sizeof(p->au32) * 8, 88) == 101);
CHECK(ASMBitNextClear(&p->au32[0], sizeof(p->au32) * 8, 101) == 126);
CHECK(ASMBitNextClear(&p->au32[0], sizeof(p->au32) * 8, 126) == 127);
CHECK(ASMBitNextClear(&p->au32[0], sizeof(p->au32) * 8, 127) == -1);
CHECK(ASMBitNextSet(&p->au32[0], sizeof(p->au32) * 8, 29) == 30);
CHECK(ASMBitNextSet(&p->au32[0], sizeof(p->au32) * 8, 30) == 32);
MAP_CLEAR(p);
for (i = 1; i < 128; i++)
CHECK_BIT(ASMBitNextClear(&p->au32[0], sizeof(p->au32) * 8, i - 1) == i, i);
for (i = 0; i < 128; i++)
{
MAP_SET(p);
ASMBitClear(&p->au32[0], i);
CHECK_BIT(ASMBitFirstClear(&p->au32[0], sizeof(p->au32) * 8) == i, i);
for (j = 0; j < i; j++)
CHECK_BIT(ASMBitNextClear(&p->au32[0], sizeof(p->au32) * 8, j) == i, i);
for (j = i; j < 128; j++)
CHECK_BIT(ASMBitNextClear(&p->au32[0], sizeof(p->au32) * 8, j) == -1, i);
}
/* clear range. */
MAP_SET(p);
ASMBitClearRange(&p->au32, 0, 128);
CHECK(!p->au32[0] && !p->au32[1] && !p->au32[2] && !p->au32[3]);
for (i = 0; i < 128; i++)
{
for (j = i + 1; j <= 128; j++)
{
MAP_SET(p);
ASMBitClearRange(&p->au32, i, j);
for (k = 0; k < i; k++)
CHECK_BIT3(ASMBitTest(&p->au32[0], k), i, j, k);
for (k = i; k < j; k++)
CHECK_BIT3(!ASMBitTest(&p->au32[0], k), i, j, k);
for (k = j; k < 128; k++)
CHECK_BIT3(ASMBitTest(&p->au32[0], k), i, j, k);
}
}
/* set range. */
MAP_CLEAR(p);
ASMBitSetRange(&p->au32[0], 0, 5);
ASMBitSetRange(&p->au32[0], 6, 44);
ASMBitSetRange(&p->au32[0], 64, 65);
CHECK(p->au32[0] == UINT32_C(0xFFFFFFDF));
CHECK(p->au32[1] == UINT32_C(0x00000FFF));
CHECK(p->au32[2] == UINT32_C(0x00000001));
MAP_CLEAR(p);
ASMBitSetRange(&p->au32[0], 0, 1);
ASMBitSetRange(&p->au32[0], 62, 63);
ASMBitSetRange(&p->au32[0], 63, 64);
ASMBitSetRange(&p->au32[0], 127, 128);
CHECK(p->au32[0] == UINT32_C(0x00000001) && p->au32[1] == UINT32_C(0xC0000000));
CHECK(p->au32[2] == UINT32_C(0x00000000) && p->au32[3] == UINT32_C(0x80000000));
MAP_CLEAR(p);
ASMBitSetRange(&p->au32, 0, 128);
CHECK(!~p->au32[0] && !~p->au32[1] && !~p->au32[2] && !~p->au32[3]);
for (i = 0; i < 128; i++)
{
for (j = i + 1; j <= 128; j++)
{
MAP_CLEAR(p);
ASMBitSetRange(&p->au32, i, j);
for (k = 0; k < i; k++)
CHECK_BIT3(!ASMBitTest(&p->au32[0], k), i, j, k);
for (k = i; k < j; k++)
CHECK_BIT3(ASMBitTest(&p->au32[0], k), i, j, k);
for (k = j; k < 128; k++)
CHECK_BIT3(!ASMBitTest(&p->au32[0], k), i, j, k);
}
}
/* searching for set bits. */
MAP_CLEAR(p);
CHECK(ASMBitFirstSet(&p->au32[0], sizeof(p->au32) * 8) == -1);
ASMBitSet(&p->au32[0], 65);
CHECK(ASMBitFirstSet(&p->au32[0], sizeof(p->au32) * 8) == 65);
CHECK(ASMBitNextSet(&p->au32[0], sizeof(p->au32) * 8, 65) == -1);
for (i = 0; i < 65; i++)
CHECK(ASMBitNextSet(&p->au32[0], sizeof(p->au32) * 8, i) == 65);
for (i = 65; i < 128; i++)
CHECK(ASMBitNextSet(&p->au32[0], sizeof(p->au32) * 8, i) == -1);
ASMBitSet(&p->au32[0], 17);
CHECK(ASMBitFirstSet(&p->au32[0], sizeof(p->au32) * 8) == 17);
CHECK(ASMBitNextSet(&p->au32[0], sizeof(p->au32) * 8, 17) == 65);
for (i = 0; i < 16; i++)
CHECK(ASMBitNextSet(&p->au32[0], sizeof(p->au32) * 8, i) == 17);
for (i = 17; i < 65; i++)
CHECK(ASMBitNextSet(&p->au32[0], sizeof(p->au32) * 8, i) == 65);
MAP_SET(p);
for (i = 1; i < 128; i++)
CHECK_BIT(ASMBitNextSet(&p->au32[0], sizeof(p->au32) * 8, i - 1) == i, i);
for (i = 0; i < 128; i++)
{
MAP_CLEAR(p);
ASMBitSet(&p->au32[0], i);
CHECK_BIT(ASMBitFirstSet(&p->au32[0], sizeof(p->au32) * 8) == i, i);
for (j = 0; j < i; j++)
CHECK_BIT(ASMBitNextSet(&p->au32[0], sizeof(p->au32) * 8, j) == i, i);
for (j = i; j < 128; j++)
CHECK_BIT(ASMBitNextSet(&p->au32[0], sizeof(p->au32) * 8, j) == -1, i);
}
CHECK(ASMBitLastSetU32(0) == 0);
CHECK(ASMBitLastSetU32(1) == 1);
CHECK(ASMBitLastSetU32(0x80000000) == 32);
CHECK(ASMBitLastSetU32(0xffffffff) == 32);
CHECK(ASMBitLastSetU32(RT_BIT(23) | RT_BIT(11)) == 24);
for (i = 0; i < 32; i++)
CHECK(ASMBitLastSetU32(1 << i) == (unsigned)i + 1);
CHECK(ASMBitFirstSetU32(0) == 0);
CHECK(ASMBitFirstSetU32(1) == 1);
CHECK(ASMBitFirstSetU32(0x80000000) == 32);
CHECK(ASMBitFirstSetU32(0xffffffff) == 1);
CHECK(ASMBitFirstSetU32(RT_BIT(23) | RT_BIT(11)) == 12);
for (i = 0; i < 32; i++)
CHECK(ASMBitFirstSetU32(1 << i) == (unsigned)i + 1);
/*
* Special tests.
*/
test2(hTest);
/*
* Summary
*/
return RTTestSummaryAndDestroy(hTest);
}
RTDECL(int) RTPowerSignalEvent(RTPOWEREVENT enmEvent)
{
PRTPOWERNOTIFYREG pCur;
RTSPINLOCK hSpinlock;
/*
* This is a little bit tricky as we cannot be holding the spinlock
* while calling the callback. This means that the list might change
* while we're walking it, and that multiple events might be running
* concurrently (depending on the OS).
*
* So, the first measure is to employ a 32-bitmask for each
* record where we'll use a bit that rotates for each call to
* this function to indicate which records that has been
* processed. This will take care of both changes to the list
* and a reasonable amount of concurrent events.
*
* In order to avoid having to restart the list walks for every
* callback we make, we'll make use a list generation number that is
* incremented everytime the list is changed. So, if it remains
* unchanged over a callback we can safely continue the iteration.
*/
uint32_t iDone = ASMAtomicIncU32(&g_iRTPowerDoneBit);
iDone %= RT_SIZEOFMEMB(RTPOWERNOTIFYREG, bmDone) * 8;
hSpinlock = g_hRTPowerNotifySpinLock;
if (hSpinlock == NIL_RTSPINLOCK)
return VERR_ACCESS_DENIED;
RTSpinlockAcquire(hSpinlock);
/* Clear the bit. */
for (pCur = g_pRTPowerCallbackHead; pCur; pCur = pCur->pNext)
ASMAtomicBitClear(&pCur->bmDone[0], iDone);
/* Iterate the records and perform the callbacks. */
do
{
uint32_t const iGeneration = ASMAtomicUoReadU32(&g_iRTPowerGeneration);
pCur = g_pRTPowerCallbackHead;
while (pCur)
{
if (!ASMAtomicBitTestAndSet(&pCur->bmDone[0], iDone))
{
PFNRTPOWERNOTIFICATION pfnCallback = pCur->pfnCallback;
void *pvUser = pCur->pvUser;
pCur = pCur->pNext;
RTSpinlockRelease(g_hRTPowerNotifySpinLock);
pfnCallback(enmEvent, pvUser);
/* carefully require the lock here, see RTR0MpNotificationTerm(). */
hSpinlock = g_hRTPowerNotifySpinLock;
if (hSpinlock == NIL_RTSPINLOCK)
return VERR_ACCESS_DENIED;
RTSpinlockAcquire(hSpinlock);
if (ASMAtomicUoReadU32(&g_iRTPowerGeneration) != iGeneration)
break;
}
else
pCur = pCur->pNext;
}
} while (pCur);
RTSpinlockRelease(hSpinlock);
return VINF_SUCCESS;
}
