1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
|
/* $Id: tstPDMAsyncCompletion.cpp $ */
/** @file
* PDM Asynchronous Completion Testcase.
*
* 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>
*/
/*
* Copyright (C) 2008-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#define LOG_GROUP LOG_GROUP_PDM_ASYNC_COMPLETION
#include "VMInternal.h" /* UVM */
#include <VBox/vmm/vm.h>
#include <VBox/vmm/uvm.h>
#include <VBox/vmm/pdmasynccompletion.h>
#include <VBox/vmm/vmm.h>
#include <VBox/vmm/cpum.h>
#include <iprt/errcore.h>
#include <VBox/log.h>
#include <VBox/vmm/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 (64*_1K)
/* Buffers to store data in .*/
uint8_t *g_AsyncCompletionTasksBuffer[NR_TASKS];
PPDMASYNCCOMPLETIONTASK g_AsyncCompletionTasks[NR_TASKS];
volatile uint32_t g_cTasksLeft;
RTSEMEVENT g_FinishedEventSem;
static DECLCALLBACK(void) AsyncTaskCompleted(PVM pVM, void *pvUser, void *pvUser2, int rc)
{
RT_NOREF4(pVM, pvUser, pvUser2, rc);
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);
}
}
/**
* Entry point.
*/
extern "C" DECLEXPORT(int) TrustedMain(int argc, char **argv, char **envp)
{
RT_NOREF1(envp);
int rcRet = 0; /* error count */
PPDMASYNCCOMPLETIONENDPOINT pEndpointSrc, pEndpointDst;
RTR3InitExe(argc, &argv, RTR3INIT_FLAGS_TRY_SUPLIB);
if (argc != 3)
{
RTPrintf(TESTCASE ": Usage is ./tstPDMAsyncCompletion <source> <dest>\n");
return 1;
}
PVM pVM;
PUVM pUVM;
int rc = VMR3Create(1 /*cCpus*/, NULL, 0 /*fFlags*/, 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;
}
#if !defined(VBOX_WITH_HARDENING) || !defined(RT_OS_WINDOWS)
/**
* Main entry point.
*/
int main(int argc, char **argv, char **envp)
{
return TrustedMain(argc, argv, envp);
}
#endif
|
