author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 16 Apr 2010 16:46:38 +0300 | |
changeset 18 | 47c74d1534e1 |
parent 0 | e4d67989cc36 |
child 45 | 4b03adbd26ca |
child 71 | 28ccaba883f4 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
0
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#include <memory> |
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#include <vector> |
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#include <cstdio> |
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#include "cppunit/cppunit_proxy.h" |
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#if !defined (STLPORT) || defined(_STLP_USE_NAMESPACES) |
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using namespace std; |
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#endif |
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// |
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// TestCase class |
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// |
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class AllocatorTest : public CPPUNIT_NS::TestCase |
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{ |
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CPPUNIT_TEST_SUITE(AllocatorTest); |
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CPPUNIT_TEST(zero_allocation); |
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#if !defined (STLPORT) || defined (_STLP_USE_EXCEPTIONS) |
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CPPUNIT_TEST(bad_alloc_test); |
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#endif |
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#if defined (STLPORT) && defined (_STLP_THREADS) && defined (_STLP_USE_PERTHREAD_ALLOC) |
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CPPUNIT_TEST(per_thread_alloc); |
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#endif |
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CPPUNIT_TEST_SUITE_END(); |
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|
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protected: |
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void zero_allocation(); |
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void bad_alloc_test(); |
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void per_thread_alloc(); |
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}; |
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CPPUNIT_TEST_SUITE_REGISTRATION(AllocatorTest); |
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|
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// |
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// tests implementation |
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// |
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void AllocatorTest::zero_allocation() |
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{ |
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typedef allocator<char> CharAllocator; |
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CharAllocator charAllocator; |
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|
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char* buf = charAllocator.allocate(0); |
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charAllocator.deallocate(buf, 0); |
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charAllocator.deallocate(0, 0); |
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} |
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#if !defined (STLPORT) || defined (_STLP_USE_EXCEPTIONS) |
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struct BigStruct |
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{ |
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char _data[4096]; |
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}; |
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void AllocatorTest::bad_alloc_test() |
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{ |
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typedef allocator<BigStruct> BigStructAllocType; |
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BigStructAllocType bigStructAlloc; |
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try { |
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//Lets try to allocate almost 4096 Go (on most of the platforms) of memory: |
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BigStructAllocType::pointer pbigStruct = bigStructAlloc.allocate(1024 * 1024 * 1024); |
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//Allocation failed but no exception thrown |
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CPPUNIT_ASSERT( pbigStruct != 0 ); |
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} |
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catch (bad_alloc const&) { |
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} |
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catch (...) { |
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//We shouldn't be there: |
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//Not bad_alloc exception thrown. |
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CPPUNIT_ASSERT( false ); |
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} |
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} |
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#endif |
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#if defined (STLPORT) && defined (_STLP_THREADS) && defined (_STLP_USE_PERTHREAD_ALLOC) |
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# include <pthread.h> |
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class SharedDatas |
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{ |
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public: |
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typedef vector<int, per_thread_allocator<int> > thread_vector; |
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SharedDatas(size_t nbElems) : threadVectors(nbElems, (thread_vector*)0) { |
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pthread_mutex_init(&mutex, 0); |
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pthread_cond_init(&condition, 0); |
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} |
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~SharedDatas() { |
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for (size_t i = 0; i < threadVectors.size(); ++i) { |
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delete threadVectors[i]; |
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} |
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} |
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size_t initThreadVector() { |
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size_t ret; |
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pthread_mutex_lock(&mutex); |
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|
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for (size_t i = 0; i < threadVectors.size(); ++i) { |
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if (threadVectors[i] == 0) { |
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threadVectors[i] = new thread_vector(); |
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ret = i; |
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break; |
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} |
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} |
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|
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if (ret != threadVectors.size() - 1) { |
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//We wait for other thread(s) to call this method too: |
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printf("Thread %d wait\n", ret); |
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pthread_cond_wait(&condition, &mutex); |
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} |
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else { |
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//We are the last thread calling this method, we signal this |
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//to the other thread(s) that might be waiting: |
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printf("Thread %d signal\n", ret); |
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pthread_cond_signal(&condition); |
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} |
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|
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pthread_mutex_unlock(&mutex); |
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|
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return ret; |
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} |
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|
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thread_vector& getThreadVector(size_t index) { |
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//We return other thread thread_vector instance: |
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return *threadVectors[(index + 1 == threadVectors.size()) ? 0 : index + 1]; |
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} |
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|
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private: |
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pthread_mutex_t mutex; |
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pthread_cond_t condition; |
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vector<thread_vector*> threadVectors; |
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}; |
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|
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void* f(void* pdatas) { |
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SharedDatas *psharedDatas = (SharedDatas*)pdatas; |
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|
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int threadIndex = psharedDatas->initThreadVector(); |
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|
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for (int i = 0; i < 100; ++i) { |
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psharedDatas->getThreadVector(threadIndex).push_back(i); |
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} |
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|
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return 0; |
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} |
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|
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void AllocatorTest::per_thread_alloc() |
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{ |
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const size_t nth = 2; |
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SharedDatas datas(nth); |
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pthread_t t[nth]; |
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|
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size_t i; |
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for (i = 0; i < nth; ++i) { |
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pthread_create(&t[i], 0, f, &datas); |
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} |
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|
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for (i = 0; i < nth; ++i ) { |
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pthread_join(t[i], 0); |
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} |
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} |
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#endif |