| 1 | /* $Id: tstRTTls-1.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT Testcase - Thread Local Storage (TLS).
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2020-2023 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 <iprt/thread.h>
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| 42 |
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| 43 | #include <iprt/asm.h>
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| 44 | #include <iprt/errcore.h>
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| 45 | #include <iprt/test.h>
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| 46 | #include <iprt/time.h>
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| 47 |
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| 48 |
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| 49 | /*********************************************************************************************************************************
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| 50 | * Global Variables *
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| 51 | *********************************************************************************************************************************/
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| 52 | static RTTEST g_hTest;
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| 53 | static uint32_t volatile g_cDtorCalls = 0;
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| 54 |
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| 55 | /**
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| 56 | * @callback_method_impl{FNRTTLSDTOR}
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| 57 | */
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| 58 | static DECLCALLBACK(void) testDtorCallback(void *pvValue)
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| 59 | {
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| 60 | RTTEST_CHECK(g_hTest, pvValue != NULL);
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| 61 | ASMAtomicIncU32(&g_cDtorCalls);
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| 62 | }
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| 63 |
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| 64 |
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| 65 | static DECLCALLBACK(int) testDtorThread1(RTTHREAD hSelf, void *pvUser)
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| 66 | {
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| 67 | RTTEST_CHECK_RC(g_hTest, RTTlsSet((RTTLS)pvUser, hSelf), VINF_SUCCESS);
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| 68 | return VINF_SUCCESS;
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| 69 | }
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| 70 |
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| 71 |
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| 72 | static void testDtor(void)
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| 73 | {
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| 74 | RTTestISub("TLS Destructors");
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| 75 |
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| 76 | g_cDtorCalls = 0;
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| 77 | RTTLS iTls;
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| 78 | int rc = RTTlsAllocEx(&iTls, testDtorCallback);
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| 79 | if (rc == VERR_NOT_SUPPORTED)
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| 80 | {
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| 81 | RTTestSkipped(g_hTest, "RTTlsAllocEx -> VERR_NOT_SUPPORTED");
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| 82 | return;
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| 83 | }
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| 84 | RTTESTI_CHECK_RC_RETV(rc, VINF_SUCCESS);
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| 85 |
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| 86 | RTTHREAD ahThreads[16];
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| 87 | uint32_t cThreads = 0;
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| 88 | while (cThreads < RT_ELEMENTS(ahThreads))
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| 89 | {
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| 90 | RTTESTI_CHECK_RC_BREAK(RTThreadCreateF(&ahThreads[cThreads], testDtorThread1, (void *)iTls, 0, RTTHREADTYPE_DEFAULT,
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| 91 | RTTHREADFLAGS_WAITABLE, "dtor-%u", cThreads), VINF_SUCCESS);
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| 92 | cThreads++;
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| 93 | }
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| 94 | uint32_t const cExpectedDtorCalls = cThreads;
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| 95 |
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| 96 | while (cThreads-- > 0)
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| 97 | RTTESTI_CHECK_RC(RTThreadWait(ahThreads[cThreads], RT_MS_30SEC, NULL), VINF_SUCCESS);
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| 98 |
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| 99 | /* RTThreadWait will return while the native portition of the thread may
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| 100 | still be shutting down, so we need to fudge a little here. */
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| 101 | uint64_t const nsStart = RTTimeNanoTS();
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| 102 | RTMSINTERVAL nsSleep = 2;
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| 103 | while ( ASMAtomicReadU32(&g_cDtorCalls) != cExpectedDtorCalls
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| 104 | && RTTimeNanoTS() - nsStart < RT_NS_10SEC)
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| 105 | {
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| 106 | nsSleep = RT_MAX(nsSleep + 1, 128);
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| 107 | RTThreadSleep(nsSleep);
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| 108 | }
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| 109 |
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| 110 | uint32_t cCalls = ASMAtomicReadU32(&g_cDtorCalls);
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| 111 | if (cCalls != cExpectedDtorCalls)
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| 112 | RTTestFailed(g_hTest, "%u dtor calls, expected %u\n", cCalls, cExpectedDtorCalls);
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| 113 |
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| 114 | RTTESTI_CHECK_RC(RTTlsFree(iTls), VINF_SUCCESS);
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| 115 | }
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| 116 |
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| 117 |
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| 118 | int main()
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| 119 | {
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| 120 | RTEXITCODE rcExit = RTTestInitAndCreate("tstRTStrCatCopy", &g_hTest);
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| 121 | if (rcExit != RTEXITCODE_SUCCESS)
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| 122 | return rcExit;
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| 123 |
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| 124 | testDtor();
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| 125 |
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| 126 | return RTTestSummaryAndDestroy(g_hTest);
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| 127 | }
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| 128 |
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