tstPDMAsyncCompletion.cpp revision 632b4638bd18092c6b8edb4e1028c9be112f5076
/* $Id$ */
/** @file
* Async completion Testcase.
*/
/*
* Copyright (C) 2008 Sun Microsystems, Inc.
*
* Sun Microsystems, Inc. confidential
* All rights reserved
*/
/*
* This testcase is for testing the async completion interface.
* It implements a file copy program which uses the interface to copy the data.
*
* Use: ./tstPDMAsyncCompletion <source> <destination>
*/
/*******************************************************************************
* Header Files *
*******************************************************************************/
#define LOG_GROUP LOG_GROUP_PDM_ASYNC_COMPLETION
#include "../VMInternal.h" /* UVM */
#include <VBox/vm.h>
#include <VBox/uvm.h>
#include <VBox/pdmasynccompletion.h>
#include <VBox/vmm.h>
#include <VBox/cpum.h>
#include <VBox/err.h>
#include <VBox/log.h>
#include <VBox/pdmapi.h>
#include <iprt/alloc.h>
#include <iprt/asm.h>
#include <iprt/assert.h>
#include <iprt/file.h>
#include <iprt/initterm.h>
#include <iprt/semaphore.h>
#include <iprt/stream.h>
#include <iprt/string.h>
#include <iprt/thread.h>
#define TESTCASE "tstPDMAsyncCompletion"
/*
* Number of simultaneous active tasks.
*/
#define NR_TASKS 80
#define BUFFER_SIZE 4096 /* 4K */
/* Buffers to store data in .*/
uint8_t *g_AsyncCompletionTasksBuffer[NR_TASKS];
PPDMASYNCCOMPLETIONTASK g_AsyncCompletionTasks[NR_TASKS];
volatile uint32_t g_cTasksLeft;
RTSEMEVENT g_FinishedEventSem;
void pfnAsyncTaskCompleted(PVM pVM, void *pvUser, void *pvUser2)
{
LogFlow((TESTCASE ": %s: pVM=%p pvUser=%p pvUser2=%p\n", __FUNCTION__, pVM, pvUser, pvUser2));
uint32_t cTasksStillLeft = ASMAtomicDecU32(&g_cTasksLeft);
if (!cTasksStillLeft)
{
/* All tasks processed. Wakeup main. */
RTSemEventSignal(g_FinishedEventSem);
}
}
int main(int argc, char *argv[])
{
int rcRet = 0; /* error count */
int rc = VINF_SUCCESS;
PPDMASYNCCOMPLETIONENDPOINT pEndpointSrc, pEndpointDst;
RTR3InitAndSUPLib();
if (argc != 3)
{
RTPrintf(TESTCASE ": Usage is ./tstPDMAsyncCompletion <source> <dest>\n");
rcRet++;
return rcRet;
}
PVM pVM;
rc = VMR3Create(1, NULL, NULL, NULL, NULL, &pVM);
if (RT_SUCCESS(rc))
{
PPDMASYNCCOMPLETIONTEMPLATE pTemplate;
/*
* 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.
*/
rc = PDMR3AsyncCompletionTemplateCreateInternal(pVM, &pTemplate, pfnAsyncTaskCompleted, NULL, "Test");
if (RT_FAILURE(rc))
{
RTPrintf(TESTCASE ": Error while creating the template!! rc=%d\n", rc);
rcRet++;
return rcRet;
}
/*
* Create event semaphor.
*/
rc = RTSemEventCreate(&g_FinishedEventSem);
AssertRC(rc);
/*
* Create the temporary buffers.
*/
int i;
for (i=0; i < NR_TASKS; i++)
{
g_AsyncCompletionTasksBuffer[i] = (uint8_t *)RTMemAllocZ(BUFFER_SIZE);
if (!g_AsyncCompletionTasksBuffer[i])
{
RTPrintf(TESTCASE ": out of memory!\n");
rcRet++;
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);
if (RT_FAILURE(rc))
{
RTPrintf(TESTCASE ": Error while creating the destination!! rc=%d\n", rc);
rcRet++;
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, cbLeft;
size_t uOffsetSrc = 0;
size_t uOffsetDst = 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 - uOffsetSrc)
? NR_TASKS
: ((cbSrc - uOffsetSrc) / BUFFER_SIZE)
+ ((cbSrc - uOffsetSrc) % BUFFER_SIZE) > 0
? 1
: 0;
g_cTasksLeft = cTasksUsed;
for (unsigned i = 0; i < cTasksUsed; i++)
{
size_t cbRead = ((size_t)uOffsetSrc + BUFFER_SIZE) <= cbSrc ? BUFFER_SIZE : cbSrc - uOffsetSrc;
PDMDATASEG DataSeg;
DataSeg.pvSeg = g_AsyncCompletionTasksBuffer[i];
DataSeg.cbSeg = cbRead;
rc = PDMR3AsyncCompletionEpRead(pEndpointSrc, uOffsetSrc, &DataSeg, 1, cbRead, NULL,
&g_AsyncCompletionTasks[i]);
AssertRC(rc);
uOffsetSrc += cbRead;
if (uOffsetSrc == cbSrc)
break;
}
}
else
{
g_cTasksLeft = cTasksUsed;
for (unsigned i = 0; i < cTasksUsed; i++)
{
size_t cbWrite = (uOffsetDst + BUFFER_SIZE) <= cbSrc ? BUFFER_SIZE : cbSrc - uOffsetDst;
PDMDATASEG DataSeg;
DataSeg.pvSeg = g_AsyncCompletionTasksBuffer[i];
DataSeg.cbSeg = cbWrite;
rc = PDMR3AsyncCompletionEpWrite(pEndpointDst, uOffsetDst, &DataSeg, 1, cbWrite, NULL,
&g_AsyncCompletionTasks[i]);
AssertRC(rc);
uOffsetDst += cbWrite;
if (uOffsetDst == cbSrc)
break;
}
}
rc = RTSemEventWait(g_FinishedEventSem, RT_INDEFINITE_WAIT);
AssertRC(rc);
if (!fReadPass && (uOffsetDst == 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(pVM);
AssertMsg(rc == VINF_SUCCESS, ("%s: Destroying VM failed rc=%Rrc!!\n", __FUNCTION__, rc));
/*
* 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;
}