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|
/* $Id: tstRTMemPool.cpp $ */
/** @file
* IPRT Testcase - MemPool.
*/
/*
* Copyright (C) 2009-2023 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>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include <iprt/mempool.h>
#include <iprt/asm.h>
#include <iprt/errcore.h>
#include <iprt/initterm.h>
#include <iprt/string.h>
#include <iprt/test.h>
#include <iprt/thread.h>
#include <iprt/rand.h>
/*********************************************************************************************************************************
* Global Variables *
*********************************************************************************************************************************/
/** The test handle */
static RTTEST g_hTest;
/** Memory pool for tst4. */
static RTMEMPOOL g_hMemPool4;
/**
* Basic API checks.
* We'll return if any of these fails.
*/
static void tst1(RTMEMPOOL hMemPool)
{
void *pv;
/* Normal alloc. */
RTTESTI_CHECK_RETV(pv = RTMemPoolAlloc(hMemPool, 1));
RTTESTI_CHECK_RETV(RTMemPoolRelease(hMemPool, pv) == 0);
RTTESTI_CHECK_RETV(pv = RTMemPoolAlloc(hMemPool, 0));
RTTESTI_CHECK_RETV(RTMemPoolRelease(hMemPool, pv) == 0);
/* Zeroed allocation. */
for (uint32_t i = 0; i < 512; i++)
{
RTTESTI_CHECK_RETV(pv = RTMemPoolAllocZ(hMemPool, 1024));
RTTESTI_CHECK(ASMMemFirstMismatchingU32(pv, 1024, 0) == NULL);
memset(pv, 'a', 1024);
RTTESTI_CHECK_RETV(RTMemPoolRefCount(pv) == 1);
RTTESTI_CHECK_RETV(RTMemPoolRelease(hMemPool, pv) == 0);
}
RTTESTI_CHECK_RETV(pv = RTMemPoolAllocZ(hMemPool, 0));
RTTESTI_CHECK_RETV(RTMemPoolRelease(hMemPool, pv) == 0);
/* Duped allocation. */
static const char szTest[] = "test string abcdef";
RTTESTI_CHECK_RETV(pv = RTMemPoolDup(hMemPool, szTest, sizeof(szTest)));
RTTESTI_CHECK(memcmp(pv, szTest, sizeof(szTest)) == 0);
RTTESTI_CHECK_RETV(RTMemPoolRelease(hMemPool, pv) == 0);
for (uint32_t i = 0; i < 512; i++)
{
size_t const cb = 256 - sizeof(szTest);
RTTESTI_CHECK_RETV(pv = RTMemPoolDupEx(hMemPool, szTest, sizeof(szTest), cb));
RTTESTI_CHECK(memcmp(pv, szTest, sizeof(szTest)) == 0);
RTTESTI_CHECK(ASMMemIsZero((uint8_t *)pv + sizeof(szTest), cb));
memset(pv, 'b', sizeof(szTest) + cb);
RTTESTI_CHECK_RETV(RTMemPoolRefCount(pv) == 1);
RTTESTI_CHECK_RETV(RTMemPoolRelease(hMemPool, pv) == 0);
}
/* Reallocation */
RTTESTI_CHECK_RETV(pv = RTMemPoolRealloc(hMemPool, NULL, 1));
RTTESTI_CHECK_RETV(pv = RTMemPoolRealloc(hMemPool, pv, 2));
RTTESTI_CHECK_RETV(RTMemPoolRelease(hMemPool, pv) == 0);
RTTESTI_CHECK_RETV(pv = RTMemPoolAlloc(hMemPool, 42));
RTTESTI_CHECK_RETV(pv = RTMemPoolRealloc(hMemPool, pv, 32));
RTTESTI_CHECK_RETV(RTMemPoolRelease(hMemPool, pv) == 0);
RTTESTI_CHECK_RETV(pv = RTMemPoolRealloc(hMemPool, NULL, 128));
RTTESTI_CHECK_RETV(pv = RTMemPoolRealloc(hMemPool, pv, 256));
RTTESTI_CHECK_RETV(RTMemPoolRealloc(hMemPool, pv, 0) == NULL);
/* Free (a bit hard to test) */
RTMemPoolFree(hMemPool, NULL);
RTMemPoolFree(hMemPool, RTMemPoolAlloc(hMemPool, 42));
/* Memory referencing. */
for (uint32_t i = 1; i <= 4096; i *= 3)
{
void *pv2;
RTTESTI_CHECK_RETV(pv = RTMemPoolAlloc(hMemPool, i));
RTTESTI_CHECK(RTMemPoolRefCount(pv) == 1);
memset(pv, 'a', i);
RTTESTI_CHECK_MSG_RETV((pv2 = ASMMemFirstMismatchingU8(pv, i, 'a')) == NULL, ("i=%#x pv=%p off=%#x\n", i, pv,(uintptr_t)pv2 - (uintptr_t)pv));
RTTESTI_CHECK(RTMemPoolRetain(pv) == 2);
RTTESTI_CHECK(RTMemPoolRefCount(pv) == 2);
RTTESTI_CHECK(RTMemPoolRetain(pv) == 3);
RTTESTI_CHECK(RTMemPoolRefCount(pv) == 3);
RTTESTI_CHECK(RTMemPoolRetain(pv) == 4);
RTTESTI_CHECK(RTMemPoolRefCount(pv) == 4);
RTTESTI_CHECK_MSG_RETV((pv2 = ASMMemFirstMismatchingU8(pv, i, 'a')) == NULL, ("i=%#x pv=%p off=%#x\n", i, pv, (uintptr_t)pv2 - (uintptr_t)pv));
RTTESTI_CHECK(RTMemPoolRelease(hMemPool, pv) == 3);
RTTESTI_CHECK(RTMemPoolRefCount(pv) == 3);
RTTESTI_CHECK_MSG_RETV((pv2 = ASMMemFirstMismatchingU8(pv, i, 'a')) == NULL, ("i=%#x pv=%p off=%#x\n", i, pv, (uintptr_t)pv2 - (uintptr_t)pv));
RTTESTI_CHECK(RTMemPoolRetain(pv) == 4);
RTTESTI_CHECK(RTMemPoolRefCount(pv) == 4);
RTTESTI_CHECK(RTMemPoolRetain(pv) == 5);
RTTESTI_CHECK(RTMemPoolRefCount(pv) == 5);
RTTESTI_CHECK(RTMemPoolRetain(pv) == 6);
RTTESTI_CHECK(RTMemPoolRefCount(pv) == 6);
RTTESTI_CHECK(RTMemPoolRelease(NIL_RTMEMPOOL, pv) == 5);
RTTESTI_CHECK(RTMemPoolRelease(NIL_RTMEMPOOL, pv) == 4);
RTTESTI_CHECK_MSG_RETV((pv2 = ASMMemFirstMismatchingU8(pv, i, 'a')) == NULL, ("i=%#x pv=%p off=%#x\n", i, pv, (uintptr_t)pv2 - (uintptr_t)pv));
for (uint32_t cRefs = 3;; cRefs--)
{
RTTESTI_CHECK(RTMemPoolRelease(hMemPool, pv) == cRefs);
if (cRefs == 0)
break;
RTTESTI_CHECK(RTMemPoolRefCount(pv) == cRefs);
RTTESTI_CHECK_MSG_RETV((pv2 = ASMMemFirstMismatchingU8(pv, i, 'a')) == NULL, ("i=%#x pv=%p off=%#x cRefs=%d\n", i, pv, (uintptr_t)pv2 - (uintptr_t)pv, cRefs));
for (uint32_t j = 0; j < 42; j++)
{
RTTESTI_CHECK_RETV(pv2 = RTMemPoolAlloc(hMemPool, i));
RTTESTI_CHECK_RETV(pv2 != pv);
memset(pv2, 'f', i);
RTTESTI_CHECK(RTMemPoolRelease(hMemPool, pv2) == 0);
RTTESTI_CHECK_MSG_RETV((pv2 = ASMMemFirstMismatchingU8(pv, i, 'a')) == NULL, ("i=%#x pv=%p off=%#x cRefs=%d\n", i, pv, (uintptr_t)pv2 - (uintptr_t)pv, cRefs));
}
}
}
}
/**
* Test automatic cleanup upon destruction.
*/
static void tst3(void)
{
RTTestISub("Destroy non-empty pool");
/*
* Nothing freed.
*/
RTMEMPOOL hMemPool;
RTTESTI_CHECK_RC_RETV(RTMemPoolCreate(&hMemPool, "test 3a"), VINF_SUCCESS);
RTTESTI_CHECK_RETV(RTMemPoolAlloc(hMemPool, 10));
RTTESTI_CHECK_RETV(RTMemPoolAlloc(hMemPool, 20));
RTTESTI_CHECK_RETV(RTMemPoolAlloc(hMemPool, 40));
RTTESTI_CHECK_RETV(RTMemPoolAlloc(hMemPool, 80));
RTTESTI_CHECK_RC_RETV(RTMemPoolDestroy(hMemPool), VINF_SUCCESS);
/*
* Pseudo random freeing to test list maintenance.
*/
RTRAND hRand;
RTTESTI_CHECK_RC_OK_RETV(RTRandAdvCreateParkMiller(&hRand));
for (uint32_t i = 0; i < 10; i++)
{
RTTESTI_CHECK_RC_RETV(RTMemPoolCreate(&hMemPool, "test 3b"), VINF_SUCCESS);
void *apvHistory[256];
RT_ZERO(apvHistory);
uint32_t cBlocks = 0;
uint32_t j;
for (j = 0; j < RT_ELEMENTS(apvHistory) - i * 7; j++)
{
RTTESTI_CHECK_RETV(apvHistory[j] = RTMemPoolAlloc(hMemPool, j));
memset(apvHistory[j], 'a', j);
cBlocks++;
if (RTRandAdvU32Ex(hRand, 0, 4) == 4)
{
uint32_t iFree = RTRandAdvU32Ex(hRand, 0, j);
cBlocks -= apvHistory[iFree] != NULL;
RTTESTI_CHECK_RETV(RTMemPoolRelease(hMemPool, apvHistory[iFree]) == 0);
apvHistory[iFree] = NULL;
}
}
RTTESTI_CHECK_RC_RETV(RTMemPoolDestroy(hMemPool), VINF_SUCCESS);
RTTestIPrintf(RTTESTLVL_INFO, "cBlocks=%u j=%u\n", cBlocks, j);
}
RTRandAdvDestroy(hRand);
}
/** Thread function for tst4. */
static DECLCALLBACK(int) tst4Thread(RTTHREAD hSelf, void *pvArg)
{
// uint32_t iThread = (uint32_t)(uintptr_t)pvArg;
RTMEMPOOL hMemPool = g_hMemPool4;
RT_NOREF_PV(pvArg);
/* setup. */
RTTestSetDefault(g_hTest, NULL);
/* wait for the kick-off */
RTThreadUserWait(hSelf, RT_INDEFINITE_WAIT);
/* do the work. */
for (uint32_t i = 0; i < 1024; i++)
{
void *apvHistory[256];
RT_ZERO(apvHistory);
uint32_t j;
for (j = 0; j < RT_ELEMENTS(apvHistory) - (i % 200); j++)
RTTESTI_CHECK_RET(apvHistory[j] = RTMemPoolAlloc(hMemPool, (i & 15) + (j & 63)), VERR_NO_MEMORY);
for (uint32_t k = i & 7; k < j; k += 3)
{
RTTESTI_CHECK_RET(RTMemPoolRelease(hMemPool, apvHistory[k]) == 0, VERR_INTERNAL_ERROR);
apvHistory[k] = NULL;
}
while (j-- > 0)
RTTESTI_CHECK_RET(RTMemPoolRelease(hMemPool, apvHistory[j]) == 0, VERR_INTERNAL_ERROR);
}
return VINF_SUCCESS;
}
/** sub test */
static void tst4Sub(uint32_t cThreads)
{
RTTestISubF("Serialization - %u threads", cThreads);
RTMEMPOOL hMemPool;
RTTESTI_CHECK_RC_RETV(RTMemPoolCreate(&hMemPool, "test 2a"), VINF_SUCCESS);
g_hMemPool4 = hMemPool;
PRTTHREAD pahThreads = (PRTTHREAD)RTMemPoolAlloc(hMemPool, cThreads * sizeof(RTTHREAD));
RTTESTI_CHECK(pahThreads);
if (pahThreads)
{
/* start them. */
for (uint32_t i = 0; i < cThreads; i++)
{
int rc = RTThreadCreateF(&pahThreads[i], tst4Thread, (void *)(uintptr_t)i, 0,
RTTHREADTYPE_DEFAULT, RTTHREADFLAGS_WAITABLE, "tst4-%u/%u", i, cThreads);
RTTESTI_CHECK_RC_OK(rc);
if (RT_FAILURE(rc))
pahThreads[i] = NIL_RTTHREAD;
}
RTThreadYield();
/* kick them off. */
for (uint32_t i = 0; i < cThreads; i++)
if (pahThreads[i] != NIL_RTTHREAD)
RTTESTI_CHECK_RC_OK(RTThreadUserSignal(pahThreads[i]));
/* wait for them. */
for (uint32_t i = 0; i < cThreads; i++)
if (pahThreads[i] != NIL_RTTHREAD)
{
int rc = RTThreadWait(pahThreads[i], 2*60*1000, NULL);
RTTESTI_CHECK_RC_OK(rc);
}
}
RTTESTI_CHECK_RC(RTMemPoolDestroy(hMemPool), VINF_SUCCESS);
}
/**
* Starts a bunch of threads beating on a pool to test serialization.
*/
static void tst4(void)
{
/*
* Test it with a few different thread counts.
*/
tst4Sub(1);
tst4Sub(2);
tst4Sub(3);
tst4Sub(4);
tst4Sub(8);
tst4Sub(16);
}
int main()
{
RTTEST hTest;
int rc = RTTestInitAndCreate("tstRTMemPool", &hTest);
if (rc)
return rc;
RTTestBanner(hTest);
g_hTest = hTest;
/*
* Smoke tests using first the default and then a custom pool.
*/
RTTestSub(hTest, "Smoke test on default pool");
tst1(RTMEMPOOL_DEFAULT);
RTTestSub(hTest, "Smoke test on custom pool");
RTMEMPOOL hMemPool;
RTTESTI_CHECK_RC(rc = RTMemPoolCreate(&hMemPool, "test 2a"), VINF_SUCCESS);
if (RT_SUCCESS(rc))
RTTESTI_CHECK_RC(rc = RTMemPoolDestroy(hMemPool), VINF_SUCCESS);
RTTESTI_CHECK_RC(rc = RTMemPoolDestroy(NIL_RTMEMPOOL), VINF_SUCCESS);
RTTESTI_CHECK_RC(rc = RTMemPoolDestroy(RTMEMPOOL_DEFAULT), VINF_SUCCESS);
RTTESTI_CHECK_RC(rc = RTMemPoolDestroy(RTMEMPOOL_DEFAULT), VINF_SUCCESS);
RTTESTI_CHECK_RC(rc = RTMemPoolCreate(&hMemPool, "test 2b"), VINF_SUCCESS);
if (RT_SUCCESS(rc))
{
tst1(hMemPool);
RTTESTI_CHECK_RC(rc = RTMemPoolDestroy(hMemPool), VINF_SUCCESS);
}
/*
* Further tests.
*/
tst3();
tst4();
/*
* Summary.
*/
return RTTestSummaryAndDestroy(hTest);
}
|
