VirtualBox

source: vbox/trunk/src/VBox/Runtime/testcase/tstRTR0SemMutexDriver.cpp

Last change on this file was 106061, checked in by vboxsync, 8 weeks ago

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1/* $Id: tstRTR0SemMutexDriver.cpp 106061 2024-09-16 14:03:52Z vboxsync $ */
2/** @file
3 * IPRT R0 Testcase - Thread Preemption, driver program.
4 */
5
6/*
7 * Copyright (C) 2009-2024 Oracle and/or its affiliates.
8 *
9 * This file is part of VirtualBox base platform packages, as
10 * available from https://www.virtualbox.org.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation, in version 3 of the
15 * License.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, see <https://www.gnu.org/licenses>.
24 *
25 * The contents of this file may alternatively be used under the terms
26 * of the Common Development and Distribution License Version 1.0
27 * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
28 * in the VirtualBox distribution, in which case the provisions of the
29 * CDDL are applicable instead of those of the GPL.
30 *
31 * You may elect to license modified versions of this file under the
32 * terms and conditions of either the GPL or the CDDL or both.
33 *
34 * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
35 */
36
37
38/*********************************************************************************************************************************
39* Header Files *
40*********************************************************************************************************************************/
41#include <iprt/initterm.h>
42
43#include <iprt/errcore.h>
44#include <iprt/path.h>
45#include <iprt/param.h>
46#include <iprt/stream.h>
47#include <iprt/string.h>
48#include <iprt/test.h>
49#include <iprt/thread.h>
50#ifdef VBOX
51# include <VBox/sup.h>
52# include "tstRTR0SemMutex.h"
53#endif
54
55
56/*********************************************************************************************************************************
57* Structures and Typedefs *
58*********************************************************************************************************************************/
59typedef struct TSTRTR0SEMMUTEXREQ
60{
61 SUPR0SERVICEREQHDR Hdr;
62 char szMsg[256];
63} TSTRTR0SEMMUTEXREQ;
64typedef TSTRTR0SEMMUTEXREQ *PTSTRTR0SEMMUTEXREQ;
65
66
67/*********************************************************************************************************************************
68* Global Variables *
69*********************************************************************************************************************************/
70static RTTEST g_hTest;
71
72
73/**
74 * Thread function employed by tstDoThreadedTest.
75 *
76 * @returns IPRT status code.
77 * @param hThreadSelf The thread.
78 * @param pvUser The operation to perform.
79 */
80static DECLCALLBACK(int) tstThreadFn(RTTHREAD hThreadSelf, void *pvUser)
81{
82 RT_NOREF1(hThreadSelf);
83 uint32_t u32 = (uint32_t)(uintptr_t)pvUser;
84 TSTRTR0SEMMUTEX enmDo = (TSTRTR0SEMMUTEX)RT_LOWORD(u32);
85 uint32_t cSecs = RT_HIWORD(u32);
86 TSTRTR0SEMMUTEXREQ Req;
87 RT_ZERO(Req);
88 Req.Hdr.u32Magic = SUPR0SERVICEREQHDR_MAGIC;
89 Req.Hdr.cbReq = sizeof(Req);
90 Req.szMsg[0] = '\0';
91 RTTEST_CHECK_RC_RET(g_hTest, SUPR3CallR0Service("tstRTR0SemMutex", sizeof("tstRTR0SemMutex") - 1,
92 enmDo, cSecs, &Req.Hdr),
93 VINF_SUCCESS,
94 rcCheck);
95 if (Req.szMsg[0] == '!')
96 {
97 RTTestFailed(g_hTest, "%s", &Req.szMsg[1]);
98 return VERR_GENERAL_FAILURE;
99 }
100 if (Req.szMsg[0])
101 RTTestPrintf(g_hTest, RTTESTLVL_ALWAYS, "%s", Req.szMsg);
102 return VINF_SUCCESS;
103}
104
105/**
106 * Performs a threaded test.
107 *
108 * @returns true on success, false on failure.
109 * @param enmSetup The setup operation number.
110 * @param enmDo The do-it operation number.
111 * @param enmCleanup The cleanup operation number.
112 * @param cThreads The number of threads.
113 * @param pReq The request structure.
114 * @param pszTest The test name.
115 */
116static bool tstDoThreadedTest(TSTRTR0SEMMUTEX enmSetup, TSTRTR0SEMMUTEX enmDo, TSTRTR0SEMMUTEX enmCleanup,
117 unsigned cThreads, unsigned cSecs, PTSTRTR0SEMMUTEXREQ pReq, const char *pszTest)
118{
119 RTTestSubF(g_hTest, "%s - %u threads", pszTest, cThreads);
120 RTTHREAD ahThreads[32];
121 RTTESTI_CHECK_RET(cThreads <= RT_ELEMENTS(ahThreads), false);
122
123 /*
124 * Setup.
125 */
126 pReq->Hdr.u32Magic = SUPR0SERVICEREQHDR_MAGIC;
127 pReq->Hdr.cbReq = sizeof(*pReq);
128 pReq->szMsg[0] = '\0';
129 RTTESTI_CHECK_RC_RET(SUPR3CallR0Service("tstRTR0SemMutex", sizeof("tstRTR0SemMutex") - 1, enmSetup, 0, &pReq->Hdr),
130 VINF_SUCCESS, false);
131 if (pReq->szMsg[0] == '!')
132 return !!RTTestIFailedRc(false, "%s", &pReq->szMsg[1]);
133 if (pReq->szMsg[0])
134 RTTestIPrintf(RTTESTLVL_ALWAYS, "%s", pReq->szMsg);
135
136 /*
137 * Test execution.
138 */
139 for (unsigned i = 0; i < RT_ELEMENTS(ahThreads); i++)
140 ahThreads[i] = NIL_RTTHREAD;
141
142 int rc = VINF_SUCCESS;
143 for (unsigned i = 0; i < cThreads && RT_SUCCESS(rc); i++)
144 rc = RTThreadCreateF(&ahThreads[i], tstThreadFn, (void *)(uintptr_t)RT_MAKE_U32(enmDo, cSecs), 0, RTTHREADTYPE_DEFAULT,
145 RTTHREADFLAGS_WAITABLE, "test-%u", i);
146
147 for (unsigned i = 0; i < cThreads; i++)
148 if (ahThreads[i] != NIL_RTTHREAD)
149 {
150 int rcThread = VINF_SUCCESS;
151 int rc2 = RTThreadWait(ahThreads[i], 3600*1000, &rcThread);
152 if (RT_SUCCESS(rc2))
153 {
154 ahThreads[i] = NIL_RTTHREAD;
155 if (RT_FAILURE(rcThread) && RT_SUCCESS(rc2))
156 rc = rcThread;
157 }
158 else if (RT_SUCCESS(rc))
159 rc = rc2;
160 }
161
162 /*
163 * Cleanup.
164 */
165 pReq->Hdr.u32Magic = SUPR0SERVICEREQHDR_MAGIC;
166 pReq->Hdr.cbReq = sizeof(*pReq);
167 pReq->szMsg[0] = '\0';
168 RTTESTI_CHECK_RC_RET(rc = SUPR3CallR0Service("tstRTR0SemMutex", sizeof("tstRTR0SemMutex") - 1, enmCleanup, 0, &pReq->Hdr),
169 VINF_SUCCESS, false);
170 if (pReq->szMsg[0] == '!')
171 return !!RTTestIFailedRc(false, "%s", &pReq->szMsg[1]);
172 if (pReq->szMsg[0])
173 RTTestIPrintf(RTTESTLVL_ALWAYS, "%s", pReq->szMsg);
174
175 if (RT_FAILURE(rc))
176 for (unsigned i = 0; i < cThreads; i++)
177 if (ahThreads[i] != NIL_RTTHREAD)
178 RTThreadWait(ahThreads[i], 1000, NULL);
179
180 return RT_SUCCESS(rc);
181}
182
183
184/**
185 * Entry point.
186 */
187extern "C" DECLEXPORT(int) TrustedMain(int argc, char **argv, char **envp)
188{
189 RT_NOREF3(argc, argv, envp);
190#ifndef VBOX
191 RTPrintf("tstSup: SKIPPED\n");
192 return 0;
193#else
194 /*
195 * Init.
196 */
197 RTTEST hTest;
198 int rc = RTTestInitAndCreate("tstRTR0SemMutex", &hTest);
199 if (rc)
200 return rc;
201 g_hTest = hTest;
202 RTTestBanner(hTest);
203
204 PSUPDRVSESSION pSession;
205 rc = SUPR3Init(&pSession);
206 if (RT_FAILURE(rc))
207 {
208 RTTestFailed(hTest, "SUPR3Init failed with rc=%Rrc\n", rc);
209 return RTTestSummaryAndDestroy(hTest);
210 }
211
212 char szPath[RTPATH_MAX];
213 rc = RTPathExecDir(szPath, sizeof(szPath));
214 if (RT_SUCCESS(rc))
215 rc = RTPathAppend(szPath, sizeof(szPath), "tstRTR0SemMutex.r0");
216 if (RT_FAILURE(rc))
217 {
218 RTTestFailed(hTest, "Failed constructing .r0 filename (rc=%Rrc)", rc);
219 return RTTestSummaryAndDestroy(hTest);
220 }
221
222 void *pvImageBase;
223 rc = SUPR3LoadServiceModule(szPath, "tstRTR0SemMutex",
224 "TSTRTR0SemMutexSrvReqHandler",
225 &pvImageBase);
226 if (RT_FAILURE(rc))
227 {
228 RTTestFailed(hTest, "SUPR3LoadServiceModule(%s,,,) failed with rc=%Rrc\n", szPath, rc);
229 return RTTestSummaryAndDestroy(hTest);
230 }
231
232 /* test request */
233 TSTRTR0SEMMUTEXREQ Req;
234
235 /*
236 * Sanity checks.
237 */
238 RTTestSub(hTest, "Sanity");
239 Req.Hdr.u32Magic = SUPR0SERVICEREQHDR_MAGIC;
240 Req.Hdr.cbReq = sizeof(Req);
241 Req.szMsg[0] = '\0';
242 RTTESTI_CHECK_RC(rc = SUPR3CallR0Service("tstRTR0SemMutex", sizeof("tstRTR0SemMutex") - 1,
243 TSTRTR0SEMMUTEX_SANITY_OK, 0, &Req.Hdr), VINF_SUCCESS);
244 if (RT_FAILURE(rc))
245 return RTTestSummaryAndDestroy(hTest);
246 RTTESTI_CHECK_MSG(Req.szMsg[0] == '\0', ("%s", Req.szMsg));
247 if (Req.szMsg[0] != '\0')
248 return RTTestSummaryAndDestroy(hTest);
249
250 Req.Hdr.u32Magic = SUPR0SERVICEREQHDR_MAGIC;
251 Req.Hdr.cbReq = sizeof(Req);
252 Req.szMsg[0] = '\0';
253 RTTESTI_CHECK_RC(rc = SUPR3CallR0Service("tstRTR0SemMutex", sizeof("tstRTR0SemMutex") - 1,
254 TSTRTR0SEMMUTEX_SANITY_FAILURE, 0, &Req.Hdr), VINF_SUCCESS);
255 if (RT_FAILURE(rc))
256 return RTTestSummaryAndDestroy(hTest);
257 RTTESTI_CHECK_MSG(!strncmp(Req.szMsg, RT_STR_TUPLE("!42failure42")), ("%s", Req.szMsg));
258 if (strncmp(Req.szMsg, RT_STR_TUPLE("!42failure42")))
259 return RTTestSummaryAndDestroy(hTest);
260
261 /*
262 * Basic tests, bail out on failure.
263 */
264 RTTestSub(hTest, "Basics");
265 Req.Hdr.u32Magic = SUPR0SERVICEREQHDR_MAGIC;
266 Req.Hdr.cbReq = sizeof(Req);
267 Req.szMsg[0] = '\0';
268 RTTESTI_CHECK_RC(rc = SUPR3CallR0Service("tstRTR0SemMutex", sizeof("tstRTR0SemMutex") - 1,
269 TSTRTR0SEMMUTEX_BASIC, 0, &Req.Hdr), VINF_SUCCESS);
270 if (RT_FAILURE(rc))
271 return RTTestSummaryAndDestroy(hTest);
272 if (Req.szMsg[0] == '!')
273 {
274 RTTestIFailed("%s", &Req.szMsg[1]);
275 return RTTestSummaryAndDestroy(hTest);
276 }
277 if (Req.szMsg[0])
278 RTTestIPrintf(RTTESTLVL_ALWAYS, "%s", Req.szMsg);
279
280 /*
281 * Tests with multiple threads for bugs in the contention part of the code.
282 * Test #2: Try to hold the semaphore for 1 ms.
283 * Test #3: Grab and release immediately.
284 * Test #4: Timeout checks. Try grab it for 0-32 ms and hold it for 1 s.
285 */
286 tstDoThreadedTest(TSTRTR0SEMMUTEX_TEST2_SETUP, TSTRTR0SEMMUTEX_TEST2_DO, TSTRTR0SEMMUTEX_TEST2_CLEANUP, 1, 1, &Req, "test #2");
287 tstDoThreadedTest(TSTRTR0SEMMUTEX_TEST2_SETUP, TSTRTR0SEMMUTEX_TEST2_DO, TSTRTR0SEMMUTEX_TEST2_CLEANUP, 2, 3, &Req, "test #2");
288 tstDoThreadedTest(TSTRTR0SEMMUTEX_TEST2_SETUP, TSTRTR0SEMMUTEX_TEST2_DO, TSTRTR0SEMMUTEX_TEST2_CLEANUP, 3, 3, &Req, "test #2");
289 tstDoThreadedTest(TSTRTR0SEMMUTEX_TEST2_SETUP, TSTRTR0SEMMUTEX_TEST2_DO, TSTRTR0SEMMUTEX_TEST2_CLEANUP, 9, 3, &Req, "test #2");
290
291 tstDoThreadedTest(TSTRTR0SEMMUTEX_TEST3_SETUP, TSTRTR0SEMMUTEX_TEST3_DO, TSTRTR0SEMMUTEX_TEST3_CLEANUP, 1, 1, &Req, "test #3");
292 tstDoThreadedTest(TSTRTR0SEMMUTEX_TEST3_SETUP, TSTRTR0SEMMUTEX_TEST3_DO, TSTRTR0SEMMUTEX_TEST3_CLEANUP, 2, 3, &Req, "test #3");
293 tstDoThreadedTest(TSTRTR0SEMMUTEX_TEST3_SETUP, TSTRTR0SEMMUTEX_TEST3_DO, TSTRTR0SEMMUTEX_TEST3_CLEANUP, 3, 3, &Req, "test #3");
294 tstDoThreadedTest(TSTRTR0SEMMUTEX_TEST3_SETUP, TSTRTR0SEMMUTEX_TEST3_DO, TSTRTR0SEMMUTEX_TEST3_CLEANUP, 9, 3, &Req, "test #3");
295
296 tstDoThreadedTest(TSTRTR0SEMMUTEX_TEST4_SETUP, TSTRTR0SEMMUTEX_TEST4_DO, TSTRTR0SEMMUTEX_TEST4_CLEANUP, 1, 1, &Req, "test #4");
297 tstDoThreadedTest(TSTRTR0SEMMUTEX_TEST4_SETUP, TSTRTR0SEMMUTEX_TEST4_DO, TSTRTR0SEMMUTEX_TEST4_CLEANUP, 2, 3, &Req, "test #4");
298 tstDoThreadedTest(TSTRTR0SEMMUTEX_TEST4_SETUP, TSTRTR0SEMMUTEX_TEST4_DO, TSTRTR0SEMMUTEX_TEST4_CLEANUP, 3, 3, &Req, "test #4");
299 tstDoThreadedTest(TSTRTR0SEMMUTEX_TEST4_SETUP, TSTRTR0SEMMUTEX_TEST4_DO, TSTRTR0SEMMUTEX_TEST4_CLEANUP, 9, 3, &Req, "test #4");
300
301 /*
302 * Done.
303 */
304 return RTTestSummaryAndDestroy(hTest);
305#endif
306}
307
308
309#if !defined(VBOX_WITH_HARDENING) || !defined(RT_OS_WINDOWS)
310/**
311 * Main entry point.
312 */
313int main(int argc, char **argv, char **envp)
314{
315 return TrustedMain(argc, argv, envp);
316}
317#endif
318
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