1 | /* $Id: tstSupSem-Zombie.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
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2 | /** @file
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3 | * Support Library Testcase - Ring-3 Semaphore interface - Zombie bugs.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2009-2023 Oracle and/or its affiliates.
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8 | *
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9 | * This file is part of VirtualBox base platform packages, as
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10 | * available from https://www.virtualbox.org.
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11 | *
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12 | * This program is free software; you can redistribute it and/or
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13 | * modify it under the terms of the GNU General Public License
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14 | * as published by the Free Software Foundation, in version 3 of the
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15 | * License.
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16 | *
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17 | * This program is distributed in the hope that it will be useful, but
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18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 | * General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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24 | *
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25 | * The contents of this file may alternatively be used under the terms
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26 | * of the Common Development and Distribution License Version 1.0
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27 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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28 | * in the VirtualBox distribution, in which case the provisions of the
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29 | * CDDL are applicable instead of those of the GPL.
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30 | *
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31 | * You may elect to license modified versions of this file under the
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32 | * terms and conditions of either the GPL or the CDDL or both.
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33 | *
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34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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35 | */
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36 |
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37 |
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38 | /*********************************************************************************************************************************
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39 | * Header Files *
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40 | *********************************************************************************************************************************/
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41 | #include <VBox/sup.h>
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42 |
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43 | #include <VBox/param.h>
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44 | #include <iprt/env.h>
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45 | #include <iprt/errcore.h>
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46 | #include <iprt/initterm.h>
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47 | #include <iprt/process.h>
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48 | #include <iprt/stream.h>
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49 | #include <iprt/string.h>
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50 | #include <iprt/test.h>
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51 | #include <iprt/time.h>
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52 | #include <iprt/thread.h>
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53 |
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54 |
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55 | /*********************************************************************************************************************************
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56 | * Structures and Typedefs *
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57 | *********************************************************************************************************************************/
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58 | static PSUPDRVSESSION g_pSession;
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59 | static RTTEST g_hTest;
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60 |
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61 |
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62 |
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63 | static DECLCALLBACK(int) tstSupSemSRETimed(RTTHREAD hSelf, void *pvUser)
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64 | {
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65 | SUPSEMEVENT hEvent = (SUPSEMEVENT)pvUser;
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66 | RTThreadUserSignal(hSelf);
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67 | int rc = SUPSemEventWaitNoResume(g_pSession, hEvent, 120*1000);
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68 | AssertReleaseMsg(rc == VERR_INTERRUPTED, ("%Rrc\n", rc));
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69 | return rc;
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70 | }
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71 |
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72 |
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73 | static DECLCALLBACK(int) tstSupSemMRETimed(RTTHREAD hSelf, void *pvUser)
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74 | {
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75 | SUPSEMEVENTMULTI hEventMulti = (SUPSEMEVENTMULTI)pvUser;
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76 | RTThreadUserSignal(hSelf);
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77 | int rc = SUPSemEventMultiWaitNoResume(g_pSession, hEventMulti, 120*1000);
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78 | AssertReleaseMsg(rc == VERR_INTERRUPTED, ("%Rrc\n", rc));
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79 | return rc;
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80 | }
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81 |
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82 |
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83 | static DECLCALLBACK(int) tstSupSemSREInf(RTTHREAD hSelf, void *pvUser)
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84 | {
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85 | SUPSEMEVENT hEvent = (SUPSEMEVENT)pvUser;
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86 | RTThreadUserSignal(hSelf);
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87 | int rc = SUPSemEventWaitNoResume(g_pSession, hEvent, RT_INDEFINITE_WAIT);
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88 | AssertReleaseMsg(rc == VERR_INTERRUPTED, ("%Rrc\n", rc));
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89 | return rc;
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90 | }
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91 |
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92 |
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93 | static DECLCALLBACK(int) tstSupSemMREInf(RTTHREAD hSelf, void *pvUser)
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94 | {
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95 | SUPSEMEVENTMULTI hEventMulti = (SUPSEMEVENTMULTI)pvUser;
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96 | RTThreadUserSignal(hSelf);
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97 | int rc = SUPSemEventMultiWaitNoResume(g_pSession, hEventMulti, RT_INDEFINITE_WAIT);
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98 | AssertReleaseMsg(rc == VERR_INTERRUPTED, ("%Rrc\n", rc));
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99 | return rc;
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100 | }
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101 |
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102 | static int mainChild(void)
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103 | {
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104 | /*
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105 | * Init.
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106 | */
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107 | int rc = RTR3InitExeNoArguments(RTR3INIT_FLAGS_TRY_SUPLIB);
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108 | if (RT_FAILURE(rc))
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109 | {
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110 | RTPrintf("tstSupSem-Zombie-Child: fatal error: RTR3InitExeNoArguments failed with rc=%Rrc\n", rc);
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111 | return 1;
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112 | }
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113 |
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114 | RTTEST hTest;
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115 | rc = RTTestCreate("tstSupSem-Zombie-Child", &hTest);
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116 | if (RT_FAILURE(rc))
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117 | {
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118 | RTPrintf("tstSupSem-Zombie-Child: fatal error: RTTestCreate failed with rc=%Rrc\n", rc);
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119 | return 1;
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120 | }
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121 | g_hTest = hTest;
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122 |
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123 | PSUPDRVSESSION pSession;
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124 | rc = SUPR3Init(&pSession);
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125 | if (RT_FAILURE(rc))
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126 | {
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127 | RTTestFailed(hTest, "SUPR3Init failed with rc=%Rrc\n", rc);
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128 | return RTTestSummaryAndDestroy(hTest);
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129 | }
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130 | g_pSession = pSession;
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131 |
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132 | /*
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133 | * A semaphore of each kind and throw a bunch of threads on them.
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134 | */
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135 | SUPSEMEVENT hEvent = NIL_SUPSEMEVENT;
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136 | RTTESTI_CHECK_RC(rc = SUPSemEventCreate(pSession, &hEvent), VINF_SUCCESS);
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137 | if (RT_SUCCESS(rc))
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138 | {
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139 | SUPSEMEVENTMULTI hEventMulti = NIL_SUPSEMEVENT;
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140 | RTTESTI_CHECK_RC(SUPSemEventMultiCreate(pSession, &hEventMulti), VINF_SUCCESS);
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141 | if (RT_SUCCESS(rc))
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142 | {
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143 | for (uint32_t cThreads = 0; cThreads < 5; cThreads++)
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144 | {
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145 | RTTHREAD hThread;
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146 | RTTESTI_CHECK_RC(RTThreadCreate(&hThread, tstSupSemSRETimed, (void *)hEvent, 0, RTTHREADTYPE_TIMER, 0 /*fFlags*/, "IntSRE"), VINF_SUCCESS);
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147 | RTTESTI_CHECK_RC(RTThreadCreate(&hThread, tstSupSemMRETimed, (void *)hEventMulti, 0, RTTHREADTYPE_TIMER, 0 /*fFlags*/, "IntMRE"), VINF_SUCCESS);
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148 | RTTESTI_CHECK_RC(RTThreadCreate(&hThread, tstSupSemSREInf, (void *)hEvent, 0, RTTHREADTYPE_TIMER, 0 /*fFlags*/, "IntSRE"), VINF_SUCCESS);
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149 | RTTESTI_CHECK_RC(RTThreadCreate(&hThread, tstSupSemMREInf, (void *)hEventMulti, 0, RTTHREADTYPE_TIMER, 0 /*fFlags*/, "IntMRE"), VINF_SUCCESS);
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150 | RTThreadSleep(2);
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151 | }
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152 | RTThreadSleep(50);
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153 |
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154 | /*
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155 | * This is where the test really starts...
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156 | */
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157 | return 0;
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158 | }
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159 | }
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160 |
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161 | return RTTestSummaryAndDestroy(hTest);
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162 | }
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163 |
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164 |
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165 | /**
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166 | * The parent main routine.
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167 | * @param argv0 The executable name (or whatever).
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168 | */
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169 | static int mainParent(const char *argv0)
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170 | {
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171 | /*
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172 | * Init.
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173 | */
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174 | RTTEST hTest;
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175 | int rc = RTTestInitAndCreate("tstSupSem-Zombie", &hTest);
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176 | if (rc)
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177 | return rc;
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178 | RTTestBanner(hTest);
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179 |
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180 | /*
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181 | * Spin of the child process which may or may not turn into a zombie
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182 | */
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183 | for (uint32_t iPass = 0; iPass < 32; iPass++)
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184 | {
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185 | RTTestSubF(hTest, "Pass %u", iPass);
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186 |
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187 | RTPROCESS hProcess;
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188 | const char *apszArgs[3] = { argv0, "--child", NULL };
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189 | RTTESTI_CHECK_RC_OK(rc = RTProcCreate(argv0, apszArgs, RTENV_DEFAULT, 0 /*fFlags*/, &hProcess));
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190 | if (RT_SUCCESS(rc))
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191 | {
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192 | /*
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193 | * Wait for 60 seconds then give up.
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194 | */
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195 | RTPROCSTATUS Status;
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196 | uint64_t StartTS = RTTimeMilliTS();
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197 | for (;;)
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198 | {
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199 | rc = RTProcWait(hProcess, RTPROCWAIT_FLAGS_NOBLOCK, &Status);
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200 | if (RT_SUCCESS(rc))
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201 | break;
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202 | uint64_t cElapsed = RTTimeMilliTS() - StartTS;
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203 | if (cElapsed > 60*1000)
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204 | break;
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205 | RTThreadSleep(cElapsed < 60 ? 30 : cElapsed < 200 ? 10 : 100);
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206 | }
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207 | RTTESTI_CHECK_RC_OK(rc);
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208 | if ( RT_SUCCESS(rc)
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209 | && ( Status.enmReason != RTPROCEXITREASON_NORMAL
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210 | || Status.iStatus != 0))
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211 | {
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212 | RTTestIFailed("child %d (%#x) reason %d\n", Status.iStatus, Status.iStatus, Status.enmReason);
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213 | rc = VERR_PERMISSION_DENIED;
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214 | }
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215 | }
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216 | /* one zombie process is enough. */
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217 | if (RT_FAILURE(rc))
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218 | break;
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219 | }
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220 |
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221 | return RTTestSummaryAndDestroy(hTest);
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222 | }
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223 |
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224 |
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225 | int main(int argc, char **argv)
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226 | {
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227 | if ( argc == 2
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228 | && !strcmp(argv[1], "--child"))
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229 | return mainChild();
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230 | return mainParent(argv[0]);
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231 | }
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232 |
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