VBOXDDU_DECL(int) VSCSIDeviceCreate(PVSCSIDEVICE phVScsiDevice,
PFNVSCSIREQCOMPLETED pfnVScsiReqCompleted,
void *pvVScsiDeviceUser)
{
int rc = VINF_SUCCESS;
PVSCSIDEVICEINT pVScsiDevice = NULL;
AssertPtrReturn(phVScsiDevice, VERR_INVALID_POINTER);
AssertPtrReturn(pfnVScsiReqCompleted, VERR_INVALID_POINTER);
pVScsiDevice = (PVSCSIDEVICEINT)RTMemAllocZ(sizeof(VSCSIDEVICEINT));
if (!pVScsiDevice)
return VERR_NO_MEMORY;
pVScsiDevice->pfnVScsiReqCompleted = pfnVScsiReqCompleted;
pVScsiDevice->pvVScsiDeviceUser = pvVScsiDeviceUser;
pVScsiDevice->cLunsAttached = 0;
pVScsiDevice->cLunsMax = 0;
pVScsiDevice->papVScsiLun = NULL;
vscsiSenseInit(&pVScsiDevice->VScsiSense);
rc = RTMemCacheCreate(&pVScsiDevice->hCacheReq, sizeof(VSCSIREQINT), 0, UINT32_MAX,
NULL, NULL, NULL, 0);
if (RT_SUCCESS(rc))
{
*phVScsiDevice = pVScsiDevice;
LogFlow(("%s: hVScsiDevice=%#p -> VINF_SUCCESS\n", __FUNCTION__, pVScsiDevice));
return VINF_SUCCESS;
}
RTMemFree(pVScsiDevice);
return rc;
}
/**
* Creates a new empty I/O logger.
*
* @returns VBox status code.
* @param ppIoLogger Where to store the new I/O logger handle.
*/
static int vddbgIoLoggerCreate(PVDIOLOGGERINT *ppIoLogger)
{
int rc = VINF_SUCCESS;
PVDIOLOGGERINT pIoLogger = NULL;
pIoLogger = (PVDIOLOGGERINT)RTMemAllocZ(sizeof(VDIOLOGGERINT));
if (pIoLogger)
{
rc = RTSemFastMutexCreate(&pIoLogger->hMtx);
if (RT_SUCCESS(rc))
{
rc = RTMemCacheCreate(&pIoLogger->hMemCacheIoLogEntries, sizeof(VDIOLOGENTINT),
0, UINT32_MAX, NULL, NULL, NULL, 0);
if (RT_SUCCESS(rc))
{
*ppIoLogger = pIoLogger;
return rc;
}
}
RTMemFree(pIoLogger);
}
else
rc = VERR_NO_MEMORY;
return rc;
}
/**
* Time constrained test with and unlimited N threads.
*/
static void tst3(uint32_t cThreads, uint32_t cbObject, int iMethod, uint32_t cSecs)
{
RTTestISubF("Benchmark - %u threads, %u bytes, %u secs, %s", cThreads, cbObject, cSecs,
iMethod == 0 ? "RTMemCache"
: "RTMemAlloc");
/*
* Create a cache with unlimited space, a start semaphore and line up
* the threads.
*/
RTTESTI_CHECK_RC_RETV(RTMemCacheCreate(&g_hMemCache, cbObject, 0 /*cbAlignment*/, UINT32_MAX, NULL, NULL, NULL, 0 /*fFlags*/), VINF_SUCCESS);
RTSEMEVENTMULTI hEvt;
RTTESTI_CHECK_RC_OK_RETV(RTSemEventMultiCreate(&hEvt));
TST3THREAD aThreads[64];
RTTESTI_CHECK_RETV(cThreads < RT_ELEMENTS(aThreads));
ASMAtomicWriteBool(&g_fTst3Stop, false);
for (uint32_t i = 0; i < cThreads; i++)
{
aThreads[i].hThread = NIL_RTTHREAD;
aThreads[i].cIterations = 0;
aThreads[i].fUseCache = iMethod == 0;
aThreads[i].cbObject = cbObject;
aThreads[i].hEvt = hEvt;
RTTESTI_CHECK_RC_OK_RETV(RTThreadCreateF(&aThreads[i].hThread, tst3Thread, &aThreads[i], 0,
RTTHREADTYPE_DEFAULT, RTTHREADFLAGS_WAITABLE, "tst3-%u", i));
}
/*
* Start the race.
*/
RTTimeNanoTS(); /* warmup */
uint64_t uStartTS = RTTimeNanoTS();
RTTESTI_CHECK_RC_OK_RETV(RTSemEventMultiSignal(hEvt));
RTThreadSleep(cSecs * 1000);
ASMAtomicWriteBool(&g_fTst3Stop, true);
for (uint32_t i = 0; i < cThreads; i++)
RTTESTI_CHECK_RC_OK_RETV(RTThreadWait(aThreads[i].hThread, 60*1000, NULL));
uint64_t cElapsedNS = RTTimeNanoTS() - uStartTS;
/*
* Sum up the counts.
*/
uint64_t cIterations = 0;
for (uint32_t i = 0; i < cThreads; i++)
cIterations += aThreads[i].cIterations;
RTTestIPrintf(RTTESTLVL_ALWAYS, "%'8u iterations per second, %'llu ns on avg\n",
(unsigned)((long double)cIterations * 1000000000.0 / cElapsedNS),
cElapsedNS / cIterations);
/* clean up */
RTTESTI_CHECK_RC(RTMemCacheDestroy(g_hMemCache), VINF_SUCCESS);
RTTESTI_CHECK_RC_OK(RTSemEventMultiDestroy(hEvt));
}
/**
* Basic API checks.
* We'll return if any of these fails.
*/
static void tst1(void)
{
RTTestISub("Basics");
/* Create one without constructor or destructor. */
uint32_t const cObjects = PAGE_SIZE * 2 / 256;
RTMEMCACHE hMemCache;
RTTESTI_CHECK_RC_RETV(RTMemCacheCreate(&hMemCache, 256, cObjects, 32, NULL, NULL, NULL, 0 /*fFlags*/), VINF_SUCCESS);
RTTESTI_CHECK_RETV(hMemCache != NIL_RTMEMCACHE);
/* Allocate a bit and free it again. */
void *pv = NULL;
RTTESTI_CHECK_RC_RETV(RTMemCacheAllocEx(hMemCache, &pv), VINF_SUCCESS);
RTTESTI_CHECK_RETV(pv != NULL);
RTTESTI_CHECK_RETV(RT_ALIGN_P(pv, 32) == pv);
RTMemCacheFree(hMemCache, pv);
RTTESTI_CHECK((pv = RTMemCacheAlloc(hMemCache)) != NULL);
RTMemCacheFree(hMemCache, pv);
/* Allocate everything and free it again, checking size constraints. */
for (uint32_t iLoop = 0; iLoop < 20; iLoop++)
{
/* Allocate everything. */
void *apv[cObjects];
for (uint32_t i = 0; i < cObjects; i++)
{
apv[i] = NULL;
RTTESTI_CHECK_RC(RTMemCacheAllocEx(hMemCache, &apv[i]), VINF_SUCCESS);
}
/* Check that we've got it all. */
int rc;
RTTESTI_CHECK_RC(rc = RTMemCacheAllocEx(hMemCache, &pv), VERR_MEM_CACHE_MAX_SIZE);
if (RT_SUCCESS(rc))
RTMemCacheFree(hMemCache, pv);
RTTESTI_CHECK((pv = RTMemCacheAlloc(hMemCache)) == NULL);
RTMemCacheFree(hMemCache, pv);
/* Free all the allocations. */
for (uint32_t i = 0; i < cObjects; i++)
{
RTMemCacheFree(hMemCache, apv[i]);
RTTESTI_CHECK((pv = RTMemCacheAlloc(hMemCache)) != NULL);
RTMemCacheFree(hMemCache, pv);
}
}
/* Destroy it. */
RTTESTI_CHECK_RC(RTMemCacheDestroy(hMemCache), VINF_SUCCESS);
RTTESTI_CHECK_RC(RTMemCacheDestroy(NIL_RTMEMCACHE), VINF_SUCCESS);
}
/**
* Creates a generic debug info container and associates it with the module.
*
* @returns IPRT status code.
* @param pMod The module instance.
* @param cbSeg The size of the initial segment. 0 if segments are to be
* created manually later on.
*/
int rtDbgModContainerCreate(PRTDBGMODINT pMod, RTUINTPTR cbSeg)
{
PRTDBGMODCTN pThis = (PRTDBGMODCTN)RTMemAlloc(sizeof(*pThis));
if (!pThis)
return VERR_NO_MEMORY;
pThis->Names = NULL;
pThis->AbsAddrTree = NULL;
pThis->SymbolOrdinalTree = NULL;
pThis->LineOrdinalTree = NULL;
pThis->paSegs = NULL;
pThis->cSegs = 0;
pThis->cb = 0;
pThis->iNextSymbolOrdinal = 0;
pThis->iNextLineOrdinal = 0;
pMod->pDbgVt = &g_rtDbgModVtDbgContainer;
pMod->pvDbgPriv = pThis;
#ifdef RTDBGMODCNT_WITH_MEM_CACHE
int rc = RTMemCacheCreate(&pThis->hLineNumAllocator, sizeof(RTDBGMODCTNLINE), sizeof(void *), UINT32_MAX,
NULL /*pfnCtor*/, NULL /*pfnDtor*/, NULL /*pvUser*/, 0 /*fFlags*/);
#else
int rc = VINF_SUCCESS;
#endif
if (RT_SUCCESS(rc))
{
/*
* Add the initial segment.
*/
if (cbSeg)
rc = rtDbgModContainer_SegmentAdd(pMod, 0, cbSeg, "default", sizeof("default") - 1, 0, NULL);
if (RT_SUCCESS(rc))
return rc;
#ifdef RTDBGMODCNT_WITH_MEM_CACHE
RTMemCacheDestroy(pThis->hLineNumAllocator);
#endif
}
RTMemFree(pThis);
pMod->pDbgVt = NULL;
pMod->pvDbgPriv = NULL;
return rc;
}
/**
* Test constructor / destructor.
*/
static void tst2(void)
{
RTTestISub("Ctor/Dtor");
/* Create one without constructor or destructor. */
bool fFail = false;
uint32_t const cObjects = PAGE_SIZE * 2 / 256;
RTTESTI_CHECK_RC_RETV(RTMemCacheCreate(&g_hMemCache, 256, cObjects, 32, tst2Ctor, tst2Dtor, &fFail, 0 /*fFlags*/), VINF_SUCCESS);
/* A failure run first. */
fFail = true;
void *pv = (void *)0x42;
RTTESTI_CHECK_RC_RETV(RTMemCacheAllocEx(g_hMemCache, &pv), VERR_RESOURCE_BUSY);
RTTESTI_CHECK(pv == (void *)0x42);
fFail = false;
/* To two rounds where we allocate all the objects and free them again. */
for (uint32_t iLoop = 0; iLoop < 2; iLoop++)
{
void *apv[cObjects];
for (uint32_t i = 0; i < cObjects; i++)
{
apv[i] = NULL;
RTTESTI_CHECK_RC_RETV(RTMemCacheAllocEx(g_hMemCache, &apv[i]), VINF_SUCCESS);
if (iLoop == 0)
RTTESTI_CHECK(!strcmp((char *)apv[i], "ctor was called\n"));
else
RTTESTI_CHECK(!strcmp((char *)apv[i], "ctor was called\nused\n"));
strcat((char *)apv[i], "used\n");
}
RTTESTI_CHECK_RETV((pv = RTMemCacheAlloc(g_hMemCache)) == NULL);
RTMemCacheFree(g_hMemCache, pv);
for (uint32_t i = 0; i < cObjects; i++)
RTMemCacheFree(g_hMemCache, apv[i]);
}
/* Cone, destroy the cache. */
RTTESTI_CHECK_RC(RTMemCacheDestroy(g_hMemCache), VINF_SUCCESS);
}
