static int tstPDMACStressTestFileRead(PPDMACTESTFILE pTestFile, PPDMACTESTFILETASK pTestTask)
{
int rc = VINF_SUCCESS;
Assert(!pTestTask->fActive);
pTestTask->fActive = true;
pTestTask->fWrite = false;
pTestTask->DataSeg.cbSeg = RTRandU32Ex(1, RT_MIN(pTestFile->cbFileCurr, TASK_TRANSFER_SIZE_MAX));
AssertMsg(pTestFile->cbFileCurr >= pTestTask->DataSeg.cbSeg, ("Impossible\n"));
pTestTask->off = RTRandU64Ex(0, pTestFile->cbFileCurr - pTestTask->DataSeg.cbSeg);
/* Allocate data buffer. */
pTestTask->DataSeg.pvSeg = RTMemAlloc(pTestTask->DataSeg.cbSeg);
if (!pTestTask->DataSeg.pvSeg)
return VERR_NO_MEMORY;
/* Engage */
rc = PDMR3AsyncCompletionEpRead(pTestFile->hEndpoint, pTestTask->off,
&pTestTask->DataSeg, 1,
pTestTask->DataSeg.cbSeg,
pTestTask,
&pTestTask->hTask);
return rc;
}
/**
* Entry point.
*/
extern "C" DECLEXPORT(int) TrustedMain(int argc, char **argv, char **envp)
{
int rcRet = 0; /* error count */
PPDMASYNCCOMPLETIONENDPOINT pEndpointSrc, pEndpointDst;
RTR3InitExe(argc, &argv, RTR3INIT_FLAGS_SUPLIB);
if (argc != 3)
{
RTPrintf(TESTCASE ": Usage is ./tstPDMAsyncCompletion <source> <dest>\n");
return 1;
}
PVM pVM;
PUVM pUVM;
int rc = VMR3Create(1, NULL, NULL, NULL, NULL, NULL, &pVM, &pUVM);
if (RT_SUCCESS(rc))
{
/*
* Little hack to avoid the VM_ASSERT_EMT assertion.
*/
RTTlsSet(pVM->pUVM->vm.s.idxTLS, &pVM->pUVM->aCpus[0]);
pVM->pUVM->aCpus[0].pUVM = pVM->pUVM;
pVM->pUVM->aCpus[0].vm.s.NativeThreadEMT = RTThreadNativeSelf();
/*
* Create the template.
*/
PPDMASYNCCOMPLETIONTEMPLATE pTemplate;
rc = PDMR3AsyncCompletionTemplateCreateInternal(pVM, &pTemplate, AsyncTaskCompleted, NULL, "Test");
if (RT_FAILURE(rc))
{
RTPrintf(TESTCASE ": Error while creating the template!! rc=%d\n", rc);
return 1;
}
/*
* Create event semaphore.
*/
rc = RTSemEventCreate(&g_FinishedEventSem);
AssertRC(rc);
/*
* Create the temporary buffers.
*/
for (unsigned i=0; i < NR_TASKS; i++)
{
g_AsyncCompletionTasksBuffer[i] = (uint8_t *)RTMemAllocZ(BUFFER_SIZE);
if (!g_AsyncCompletionTasksBuffer[i])
{
RTPrintf(TESTCASE ": out of memory!\n");
return ++rcRet;
}
}
/* Create the destination as the async completion API can't do this. */
RTFILE FileTmp;
rc = RTFileOpen(&FileTmp, argv[2], RTFILE_O_READWRITE | RTFILE_O_OPEN_CREATE | RTFILE_O_DENY_NONE);
if (RT_FAILURE(rc))
{
RTPrintf(TESTCASE ": Error while creating the destination!! rc=%d\n", rc);
return ++rcRet;
}
RTFileClose(FileTmp);
/* Create our file endpoint */
rc = PDMR3AsyncCompletionEpCreateForFile(&pEndpointSrc, argv[1], 0, pTemplate);
if (RT_SUCCESS(rc))
{
rc = PDMR3AsyncCompletionEpCreateForFile(&pEndpointDst, argv[2], 0, pTemplate);
if (RT_SUCCESS(rc))
{
PDMR3PowerOn(pVM);
/* Wait for all threads to finish initialization. */
RTThreadSleep(100);
int fReadPass = true;
uint64_t cbSrc;
size_t offSrc = 0;
size_t offDst = 0;
uint32_t cTasksUsed = 0;
rc = PDMR3AsyncCompletionEpGetSize(pEndpointSrc, &cbSrc);
if (RT_SUCCESS(rc))
{
/* Copy the data. */
for (;;)
{
if (fReadPass)
{
cTasksUsed = (BUFFER_SIZE * NR_TASKS) <= (cbSrc - offSrc)
? NR_TASKS
: ((cbSrc - offSrc) / BUFFER_SIZE)
+ ((cbSrc - offSrc) % BUFFER_SIZE) > 0
? 1
: 0;
g_cTasksLeft = cTasksUsed;
for (uint32_t i = 0; i < cTasksUsed; i++)
{
size_t cbRead = ((size_t)offSrc + BUFFER_SIZE) <= cbSrc ? BUFFER_SIZE : cbSrc - offSrc;
RTSGSEG DataSeg;
DataSeg.pvSeg = g_AsyncCompletionTasksBuffer[i];
DataSeg.cbSeg = cbRead;
rc = PDMR3AsyncCompletionEpRead(pEndpointSrc, offSrc, &DataSeg, 1, cbRead, NULL,
&g_AsyncCompletionTasks[i]);
AssertRC(rc);
offSrc += cbRead;
if (offSrc == cbSrc)
break;
}
}
else
{
g_cTasksLeft = cTasksUsed;
for (uint32_t i = 0; i < cTasksUsed; i++)
{
size_t cbWrite = (offDst + BUFFER_SIZE) <= cbSrc ? BUFFER_SIZE : cbSrc - offDst;
RTSGSEG DataSeg;
DataSeg.pvSeg = g_AsyncCompletionTasksBuffer[i];
DataSeg.cbSeg = cbWrite;
rc = PDMR3AsyncCompletionEpWrite(pEndpointDst, offDst, &DataSeg, 1, cbWrite, NULL,
&g_AsyncCompletionTasks[i]);
AssertRC(rc);
offDst += cbWrite;
if (offDst == cbSrc)
break;
}
}
rc = RTSemEventWait(g_FinishedEventSem, RT_INDEFINITE_WAIT);
AssertRC(rc);
if (!fReadPass && (offDst == cbSrc))
break;
else if (fReadPass)
fReadPass = false;
else
{
cTasksUsed = 0;
fReadPass = true;
}
}
}
else
{
RTPrintf(TESTCASE ": Error querying size of the endpoint!! rc=%d\n", rc);
rcRet++;
}
PDMR3PowerOff(pVM);
PDMR3AsyncCompletionEpClose(pEndpointDst);
}
PDMR3AsyncCompletionEpClose(pEndpointSrc);
}
rc = VMR3Destroy(pUVM);
AssertMsg(rc == VINF_SUCCESS, ("%s: Destroying VM failed rc=%Rrc!!\n", __FUNCTION__, rc));
VMR3ReleaseUVM(pUVM);
/*
* Clean up.
*/
for (uint32_t i = 0; i < NR_TASKS; i++)
{
RTMemFree(g_AsyncCompletionTasksBuffer[i]);
}
}
else
{
RTPrintf(TESTCASE ": failed to create VM!! rc=%Rrc\n", rc);
rcRet++;
}
return rcRet;
}
