tstRTR0SemMutexDriver.cpp@ 100838

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1	/* $Id: tstRTR0SemMutexDriver.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
2	/** @file
3	* IPRT R0 Testcase - Thread Preemption, driver program.
4	*/
5
6	/*
7	* Copyright (C) 2009-2023 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	*********************************************************************************************************************************/
59	typedef struct TSTRTR0SEMMUTEXREQ
60	{
61	SUPR0SERVICEREQHDR Hdr;
62	char szMsg[256];
63	} TSTRTR0SEMMUTEXREQ;
64	typedef TSTRTR0SEMMUTEXREQ *PTSTRTR0SEMMUTEXREQ;
65
66
67	/*********************************************************************************************************************************
68	* Global Variables *
69	*********************************************************************************************************************************/
70	static 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	*/
80	static 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	*/
116	static 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	*/
187	extern "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	*/
313	int main(int argc, char argv, char envp)
314	{
315	return TrustedMain(argc, argv, envp);
316	}
317	#endif
318

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source: vbox/trunk/src/VBox/Runtime/testcase/tstRTR0SemMutexDriver.cpp@ 100838

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