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本文整理汇总了C++中uow函数的典型用法代码示例。如果您正苦于以下问题：C++ uow函数的具体用法？C++ uow怎么用？C++ uow使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。 在下文中一共展示了uow函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。 示例1: TEST // Insert a record and try to perform an in-place update on it. TEST( RecordStoreTestHarness, UpdateWithDamages ) { scoped_ptr<HarnessHelper> harnessHelper( newHarnessHelper() ); scoped_ptr<RecordStore> rs( harnessHelper->newNonCappedRecordStore() ); { scoped_ptr<OperationContext> opCtx( harnessHelper->newOperationContext() ); ASSERT_EQUALS( 0, rs->numRecords( opCtx.get() ) ); } string data = "00010111"; DiskLoc loc; const RecordData rec(data.c_str(), data.size() + 1); { scoped_ptr<OperationContext> opCtx( harnessHelper->newOperationContext() ); { WriteUnitOfWork uow( opCtx.get() ); StatusWith<DiskLoc> res = rs->insertRecord( opCtx.get(), rec.data(), rec.size(), false ); ASSERT_OK( res.getStatus() ); loc = res.getValue(); uow.commit(); } } { scoped_ptr<OperationContext> opCtx( harnessHelper->newOperationContext() ); ASSERT_EQUALS( 1, rs->numRecords( opCtx.get() ) ); } { scoped_ptr<OperationContext> opCtx( harnessHelper->newOperationContext() ); { mutablebson::DamageVector dv( 3 ); dv[0].sourceOffset = 5; dv[0].targetOffset = 0; dv[0].size = 2; dv[1].sourceOffset = 3; dv[1].targetOffset = 2; dv[1].size = 3; dv[2].sourceOffset = 0; dv[2].targetOffset = 5; dv[2].size = 3; WriteUnitOfWork uow( opCtx.get() ); ASSERT_OK( rs->updateWithDamages( opCtx.get(), loc, rec, data.c_str(), dv ) ); uow.commit(); } } data = "11101000"; { scoped_ptr<OperationContext> opCtx( harnessHelper->newOperationContext() ); { RecordData record = rs->dataFor( opCtx.get(), loc ); ASSERT_EQUALS( data, record.data() ); } } }
开发者ID:Aaron20141021，项目名称:mongo，代码行数:61，
示例2: run void run() { string ns = "unittests.rollback_set_index_head"; const ServiceContext::UniqueOperationContext opCtxPtr = cc().makeOperationContext(); OperationContext& opCtx = *opCtxPtr; NamespaceString nss(ns); dropDatabase(&opCtx, nss); createCollection(&opCtx, nss); AutoGetDb autoDb(&opCtx, nss.db(), MODE_X); Collection* coll = autoDb.getDb()->getCollection(&opCtx, nss); IndexCatalog* catalog = coll->getIndexCatalog(); string idxName = "a"; BSONObj spec = BSON("ns" << ns << "key" << BSON("a" << 1) << "name" << idxName << "v" << static_cast<int>(kIndexVersion)); { WriteUnitOfWork uow(&opCtx); ASSERT_OK(catalog->createIndexOnEmptyCollection(&opCtx, spec)); uow.commit(); } IndexDescriptor* indexDesc = catalog->findIndexByName(&opCtx, idxName); invariant(indexDesc); const IndexCatalogEntry* ice = catalog->getEntry(indexDesc); invariant(ice); HeadManager* headManager = ice->headManager(); const RecordId oldHead = headManager->getHead(&opCtx); ASSERT_EQ(oldHead, ice->head(&opCtx)); const RecordId dummyHead(123, 456); ASSERT_NE(oldHead, dummyHead); // END SETUP / START TEST { WriteUnitOfWork uow(&opCtx); headManager->setHead(&opCtx, dummyHead); ASSERT_EQ(ice->head(&opCtx), dummyHead); ASSERT_EQ(headManager->getHead(&opCtx), dummyHead); if (!rollback) { uow.commit(); } } if (rollback) { ASSERT_EQ(ice->head(&opCtx), oldHead); ASSERT_EQ(headManager->getHead(&opCtx), oldHead); } else { ASSERT_EQ(ice->head(&opCtx), dummyHead); ASSERT_EQ(headManager->getHead(&opCtx), dummyHead); } }
开发者ID:i80and，项目名称:mongo，代码行数:58，
示例3: TEST TEST( RecordStoreTestHarness, Simple1 ) { scoped_ptr<HarnessHelper> harnessHelper( newHarnessHelper() ); scoped_ptr<RecordStore> rs( harnessHelper->newNonCappedRecordStore() ); { scoped_ptr<OperationContext> opCtx( harnessHelper->newOperationContext() ); ASSERT_EQUALS( 0, rs->numRecords( opCtx.get() ) ); } string s = "eliot was here"; DiskLoc loc1; { scoped_ptr<OperationContext> opCtx( harnessHelper->newOperationContext() ); { WriteUnitOfWork uow( opCtx.get() ); StatusWith<DiskLoc> res = rs->insertRecord( opCtx.get(), s.c_str(), s.size() + 1, false ); ASSERT_OK( res.getStatus() ); loc1 = res.getValue(); uow.commit(); } ASSERT_EQUALS( s, rs->dataFor( opCtx.get(), loc1 ).data() ); } { scoped_ptr<OperationContext> opCtx( harnessHelper->newOperationContext() ); ASSERT_EQUALS( s, rs->dataFor( opCtx.get(), loc1 ).data() ); ASSERT_EQUALS( 1, rs->numRecords( opCtx.get() ) ); RecordData rd; ASSERT( !rs->findRecord( opCtx.get(), DiskLoc(111,17), &rd ) ); ASSERT( rd.data() == NULL ); ASSERT( rs->findRecord( opCtx.get(), loc1, &rd ) ); ASSERT_EQUALS( s, rd.data() ); } { scoped_ptr<OperationContext> opCtx( harnessHelper->newOperationContext() ); { WriteUnitOfWork uow( opCtx.get() ); StatusWith<DiskLoc> res = rs->insertRecord( opCtx.get(), s.c_str(), s.size() + 1, false ); ASSERT_OK( res.getStatus() ); uow.commit(); } } { scoped_ptr<OperationContext> opCtx( harnessHelper->newOperationContext() ); ASSERT_EQUALS( 2, rs->numRecords( opCtx.get() ) ); } }
开发者ID:dpercy，项目名称:mongo，代码行数:55，
示例4: TEST // Insert a record and try to call updateWithDamages() with an empty DamageVector. TEST( RecordStoreTestHarness, UpdateWithNoDamages ) { scoped_ptr<HarnessHelper> harnessHelper( newHarnessHelper() ); scoped_ptr<RecordStore> rs( harnessHelper->newNonCappedRecordStore() ); if (!rs->updateWithDamagesSupported()) return; { scoped_ptr<OperationContext> opCtx( harnessHelper->newOperationContext() ); ASSERT_EQUALS( 0, rs->numRecords( opCtx.get() ) ); } string data = "my record"; RecordId loc; const RecordData rec(data.c_str(), data.size() + 1); { scoped_ptr<OperationContext> opCtx( harnessHelper->newOperationContext() ); { WriteUnitOfWork uow( opCtx.get() ); StatusWith<RecordId> res = rs->insertRecord( opCtx.get(), rec.data(), rec.size(), false ); ASSERT_OK( res.getStatus() ); loc = res.getValue(); uow.commit(); } } { scoped_ptr<OperationContext> opCtx( harnessHelper->newOperationContext() ); ASSERT_EQUALS( 1, rs->numRecords( opCtx.get() ) ); } { scoped_ptr<OperationContext> opCtx( harnessHelper->newOperationContext() ); { mutablebson::DamageVector dv; WriteUnitOfWork uow( opCtx.get() ); ASSERT_OK( rs->updateWithDamages( opCtx.get(), loc, rec, "", dv ) ); uow.commit(); } } { scoped_ptr<OperationContext> opCtx( harnessHelper->newOperationContext() ); { RecordData record = rs->dataFor( opCtx.get(), loc ); ASSERT_EQUALS( data, record.data() ); } } }
开发者ID:7segments，项目名称:mongo-1，代码行数:54，
示例5: TEST_FTEST_F(KVCatalogTest, Coll1) { unique_ptr<KVHarnessHelper> helper(KVHarnessHelper::create()); KVEngine* engine = helper->getEngine(); unique_ptr<RecordStore> rs; unique_ptr<KVCatalog> catalog; { MyOperationContext opCtx(engine); WriteUnitOfWork uow(&opCtx); ASSERT_OK(engine->createRecordStore(&opCtx, "catalog", "catalog", CollectionOptions())); rs = engine->getRecordStore(&opCtx, "catalog", "catalog", CollectionOptions()); catalog.reset(new KVCatalog(rs.get(), false, false, nullptr)); uow.commit(); } { MyOperationContext opCtx(engine); WriteUnitOfWork uow(&opCtx); ASSERT_OK(newCollection(&opCtx, NamespaceString("a.b"), CollectionOptions(), KVPrefix::kNotPrefixed, catalog.get())); ASSERT_NOT_EQUALS("a.b", catalog->getCollectionIdent("a.b")); uow.commit(); } string ident = catalog->getCollectionIdent("a.b"); { MyOperationContext opCtx(engine); WriteUnitOfWork uow(&opCtx); catalog.reset(new KVCatalog(rs.get(), false, false, nullptr)); catalog->init(&opCtx); uow.commit(); } ASSERT_EQUALS(ident, catalog->getCollectionIdent("a.b")); { MyOperationContext opCtx(engine); WriteUnitOfWork uow(&opCtx); dropCollection(&opCtx, "a.b", catalog.get()).transitional_ignore(); newCollection(&opCtx, NamespaceString("a.b"), CollectionOptions(), KVPrefix::kNotPrefixed, catalog.get()) .transitional_ignore(); uow.commit(); } ASSERT_NOT_EQUALS(ident, catalog->getCollectionIdent("a.b"));}
开发者ID:acmorrow，项目名称:mongo，代码行数:51，
示例6: TEST TEST( RocksRecordStoreTest, Truncate1 ) { unittest::TempDir td( _rocksRecordStoreTestDir ); scoped_ptr<rocksdb::DB> db( getDB( td.path() ) ); { rocksdb::ColumnFamilyHandle* cf1; rocksdb::ColumnFamilyHandle* cf1_m; rocksdb::Status status; status = db->CreateColumnFamily( getColumnFamilyOptions(), "foo.bar1", &cf1 ); ASSERT_OK( toMongoStatus( status ) ); status = db->CreateColumnFamily( rocksdb::ColumnFamilyOptions(), "foo.bar1&", &cf1_m ); ASSERT_OK( toMongoStatus( status ) ); RocksRecordStore rs( "foo.bar", db.get(), cf1, cf1_m ); string s = "antonio was here"; { MyOperationContext opCtx( db.get() ); WriteUnitOfWork uow( opCtx.recoveryUnit() ); StatusWith<DiskLoc> res = rs.insertRecord( &opCtx, s.c_str(), s.size() + 1, -1 ); ASSERT_OK( res.getStatus() ); res = rs.insertRecord( &opCtx, s.c_str(), s.size() + 1, -1 ); ASSERT_OK( res.getStatus() ); } { MyOperationContext opCtx( db.get() ); WriteUnitOfWork uow( opCtx.recoveryUnit() ); Status stat = rs.truncate( &opCtx ); ASSERT_OK( stat ); ASSERT_EQUALS( 0, rs.numRecords() ); ASSERT_EQUALS( 0, rs.dataSize() ); } // Test that truncate does not fail on an empty collection { MyOperationContext opCtx( db.get() ); WriteUnitOfWork uow( opCtx.recoveryUnit() ); Status stat = rs.truncate( &opCtx ); ASSERT_OK( stat ); ASSERT_EQUALS( 0, rs.numRecords() ); ASSERT_EQUALS( 0, rs.dataSize() ); } } }
开发者ID:li--paul，项目名称:mongo，代码行数:49，
示例7: lk long long BackgroundSync::_readLastAppliedHash(OperationContext* txn) { BSONObj oplogEntry; try { // Uses WuoW because there is no way to demarcate a read transaction boundary. Lock::DBLock lk(txn->lockState(), "local", MODE_X); WriteUnitOfWork uow(txn); bool success = Helpers::getLast(txn, rsoplog, oplogEntry); uow.commit(); if (!success) { // This can happen when we are to do an initial sync. lastHash will be set // after the initial sync is complete. return 0; } } catch (const DBException& ex) { severe() << "Problem reading " << rsoplog << ": " << ex.toStatus(); fassertFailed(18904); } BSONElement hashElement = oplogEntry[hashFieldName]; if (hashElement.eoo()) { severe() << "Most recent entry in " << rsoplog << " missing /"" << hashFieldName << "/" field"; fassertFailed(18902); } if (hashElement.type() != NumberLong) { severe() << "Expected type of /"" << hashFieldName << "/" in most recent " << rsoplog << " entry to have type NumberLong, but found " << typeName(hashElement.type()); fassertFailed(18903); } return hashElement.safeNumberLong(); }
开发者ID:FranckBel，项目名称:mongo，代码行数:32，
示例8: TEST // Call savePosition() on a reverse cursor without ever calling restorePosition(). // May be useful to run this test under valgrind to verify there are no leaks. TEST( SortedDataInterface, SavePositionWithoutRestoreReversed ) { scoped_ptr<HarnessHelper> harnessHelper( newHarnessHelper() ); scoped_ptr<SortedDataInterface> sorted( harnessHelper->newSortedDataInterface( false ) ); { scoped_ptr<OperationContext> opCtx( harnessHelper->newOperationContext() ); ASSERT( sorted->isEmpty( opCtx.get() ) ); } { scoped_ptr<OperationContext> opCtx( harnessHelper->newOperationContext() ); { WriteUnitOfWork uow( opCtx.get() ); ASSERT_OK( sorted->insert( opCtx.get(), key1, loc1, true ) ); uow.commit(); } } { scoped_ptr<OperationContext> opCtx( harnessHelper->newOperationContext() ); ASSERT_EQUALS( 1, sorted->numEntries( opCtx.get() ) ); } { scoped_ptr<OperationContext> opCtx( harnessHelper->newOperationContext() ); scoped_ptr<SortedDataInterface::Cursor> cursor( sorted->newCursor( opCtx.get(), -1 ) ); cursor->savePosition(); } }
开发者ID:Aaron20141021，项目名称:mongo，代码行数:31，
示例9: TEST TEST( KVEngineTestHarness, SimpleRS1 ) { scoped_ptr<KVHarnessHelper> helper( KVHarnessHelper::create() ); KVEngine* engine = helper->getEngine(); ASSERT( engine ); string ns = "a.b"; scoped_ptr<RecordStore> rs; { MyOperationContext opCtx( engine ); ASSERT_OK( engine->createRecordStore( &opCtx, ns, CollectionOptions() ) ); rs.reset( engine->getRecordStore( &opCtx, ns, ns, CollectionOptions() ) ); ASSERT( rs ); } DiskLoc loc; { MyOperationContext opCtx( engine ); WriteUnitOfWork uow( &opCtx ); StatusWith<DiskLoc> res = rs->insertRecord( &opCtx, "abc", 4, false ); ASSERT_OK( res.getStatus() ); loc = res.getValue(); uow.commit(); } { MyOperationContext opCtx( engine ); ASSERT_EQUALS( string("abc"), rs->dataFor( &opCtx, loc ).data() ); } }
开发者ID:dpercy，项目名称:mongo，代码行数:31，
示例10: TEST// Insert multiple keys and verify that fullValidate() either sets// the `numKeysOut` as the number of entries in the index, or as -1.TEST(SortedDataInterface, FullValidate) { const std::unique_ptr<HarnessHelper> harnessHelper(newHarnessHelper()); const std::unique_ptr<SortedDataInterface> sorted(harnessHelper->newSortedDataInterface(false)); { const std::unique_ptr<OperationContext> opCtx(harnessHelper->newOperationContext()); ASSERT(sorted->isEmpty(opCtx.get())); } int nToInsert = 10; for (int i = 0; i < nToInsert; i++) { const std::unique_ptr<OperationContext> opCtx(harnessHelper->newOperationContext()); { WriteUnitOfWork uow(opCtx.get()); BSONObj key = BSON("" << i); RecordId loc(42, i * 2); ASSERT_OK(sorted->insert(opCtx.get(), key, loc, true)); uow.commit(); } } { const std::unique_ptr<OperationContext> opCtx(harnessHelper->newOperationContext()); ASSERT_EQUALS(nToInsert, sorted->numEntries(opCtx.get())); } { long long numKeysOut; const std::unique_ptr<OperationContext> opCtx(harnessHelper->newOperationContext()); sorted->fullValidate(opCtx.get(), &numKeysOut, NULL); // fullValidate() can set numKeysOut as the number of existing keys or -1. ASSERT(numKeysOut == nToInsert || numKeysOut == -1); }}
开发者ID:AlexOreshkevich，项目名称:mongo，代码行数:36，
示例11: TEST// Verify that a nonempty collection maybe takes up some space on disk.TEST(RecordStoreTestHarness, StorageSizeNonEmpty) { unique_ptr<HarnessHelper> harnessHelper(newHarnessHelper()); unique_ptr<RecordStore> rs(harnessHelper->newNonCappedRecordStore()); { unique_ptr<OperationContext> opCtx(harnessHelper->newOperationContext()); ASSERT_EQUALS(0, rs->numRecords(opCtx.get())); } int nToInsert = 10; for (int i = 0; i < nToInsert; i++) { unique_ptr<OperationContext> opCtx(harnessHelper->newOperationContext()); { stringstream ss; ss << "record " << i; string data = ss.str(); WriteUnitOfWork uow(opCtx.get()); StatusWith<RecordId> res = rs->insertRecord(opCtx.get(), data.c_str(), data.size() + 1, false); ASSERT_OK(res.getStatus()); uow.commit(); } } { unique_ptr<OperationContext> opCtx(harnessHelper->newOperationContext()); ASSERT_EQUALS(nToInsert, rs->numRecords(opCtx.get())); } { unique_ptr<OperationContext> opCtx(harnessHelper->newOperationContext()); ASSERT(rs->storageSize(opCtx.get(), NULL) >= 0); }}
开发者ID:stevelyall，项目名称:mongol-db，代码行数:36，
示例12: TEST TEST( RocksEngineTest, CreateDirect1 ) { std::string path = "/tmp/mongo-rocks-engine-test"; boost::filesystem::remove_all( path ); RocksEngine engine( path ); { MyOperationContext opCtx( &engine ); Status status = engine.createCollection( &opCtx, "test.foo", CollectionOptions() ); ASSERT_OK( status ); } RocksRecordStore* rs = engine.getEntry( "test.foo" )->recordStore.get(); string s = "eliot was here"; { MyOperationContext opCtx( &engine ); DiskLoc loc; { WriteUnitOfWork uow( opCtx.recoveryUnit() ); StatusWith<DiskLoc> res = rs->insertRecord( &opCtx, s.c_str(), s.size() + 1, -1 ); ASSERT_OK( res.getStatus() ); loc = res.getValue(); } ASSERT_EQUALS( s, rs->dataFor( loc ).data() ); } }
开发者ID:li--paul，项目名称:mongo，代码行数:29，
示例13: TESTTEST(KVEngineTestHarness, SimpleSorted1) { unique_ptr<KVHarnessHelper> helper(KVHarnessHelper::create()); KVEngine* engine = helper->getEngine(); ASSERT(engine); string ident = "abc"; IndexDescriptor desc(nullptr, "", BSON("v" << static_cast<int>(IndexDescriptor::kLatestIndexVersion) << "ns" << "mydb.mycoll" << "key" << BSON("a" << 1))); unique_ptr<SortedDataInterface> sorted; { MyOperationContext opCtx(engine); ASSERT_OK(engine->createSortedDataInterface(&opCtx, ident, &desc)); sorted.reset(engine->getSortedDataInterface(&opCtx, ident, &desc)); ASSERT(sorted); } { MyOperationContext opCtx(engine); WriteUnitOfWork uow(&opCtx); ASSERT_OK(sorted->insert(&opCtx, BSON("" << 5), RecordId(6, 4), true)); uow.commit(); } { MyOperationContext opCtx(engine); ASSERT_EQUALS(1, sorted->numEntries(&opCtx)); }}
开发者ID:acmorrow，项目名称:mongo，代码行数:32，
示例14: TEST// Insert multiple records and create a random iterator for the record storeTEST(RecordStoreTestHarness, GetRandomIteratorNonEmpty) { unique_ptr<HarnessHelper> harnessHelper(newHarnessHelper()); unique_ptr<RecordStore> rs(harnessHelper->newNonCappedRecordStore()); { unique_ptr<OperationContext> opCtx(harnessHelper->newOperationContext()); ASSERT_EQUALS(0, rs->numRecords(opCtx.get())); } const unsigned nToInsert = 5000; // should be non-trivial amount, so we get multiple btree levels RecordId locs[nToInsert]; for (unsigned i = 0; i < nToInsert; i++) { unique_ptr<OperationContext> opCtx(harnessHelper->newOperationContext()); { stringstream ss; ss << "record " << i; string data = ss.str(); WriteUnitOfWork uow(opCtx.get()); StatusWith<RecordId> res = rs->insertRecord(opCtx.get(), data.c_str(), data.size() + 1, false); ASSERT_OK(res.getStatus()); locs[i] = res.getValue(); uow.commit(); } } { unique_ptr<OperationContext> opCtx(harnessHelper->newOperationContext()); ASSERT_EQUALS(nToInsert, rs->numRecords(opCtx.get())); } set<RecordId> remain(locs, locs + nToInsert); { unique_ptr<OperationContext> opCtx(harnessHelper->newOperationContext()); auto cursor = rs->getRandomCursor(opCtx.get()); // returns NULL if getRandomCursor is not supported if (!cursor) { return; } // Iterate documents and mark those visited, but let at least one remain for (unsigned i = 0; i < nToInsert - 1; i++) { // Get a new cursor once in a while, shouldn't affect things if (i % (nToInsert / 8) == 0) { cursor = rs->getRandomCursor(opCtx.get()); } remain.erase(cursor->next()->id); // can happen more than once per doc } ASSERT(!remain.empty()); ASSERT(cursor->next()); // We should have at least visited a quarter of the items if we're any random at all // The expected fraction of visited records is 62.3%. ASSERT_LT(remain.size(), nToInsert * 3 / 4); }}
开发者ID:stevelyall，项目名称:mongol-db，代码行数:59，
示例15: TESTTEST(KVCatalogTest, DirectoryPerAndSplit1) { unique_ptr<KVHarnessHelper> helper(KVHarnessHelper::create()); KVEngine* engine = helper->getEngine(); unique_ptr<RecordStore> rs; unique_ptr<KVCatalog> catalog; { MyOperationContext opCtx(engine); WriteUnitOfWork uow(&opCtx); ASSERT_OK(engine->createRecordStore(&opCtx, "catalog", "catalog", CollectionOptions())); rs = engine->getRecordStore(&opCtx, "catalog", "catalog", CollectionOptions()); catalog.reset(new KVCatalog(rs.get(), true, true)); uow.commit(); } { MyOperationContext opCtx(engine); WriteUnitOfWork uow(&opCtx); ASSERT_OK( catalog->newCollection(&opCtx, "a.b", CollectionOptions(), KVPrefix::kNotPrefixed)); ASSERT_STRING_CONTAINS(catalog->getCollectionIdent("a.b"), "a/collection/"); ASSERT_TRUE(catalog->isUserDataIdent(catalog->getCollectionIdent("a.b"))); uow.commit(); } { // index MyOperationContext opCtx(engine); WriteUnitOfWork uow(&opCtx); BSONCollectionCatalogEntry::MetaData md; md.ns = "a.b"; md.indexes.push_back(BSONCollectionCatalogEntry::IndexMetaData(BSON("name" << "foo"), false, RecordId(), false, KVPrefix::kNotPrefixed, false)); catalog->putMetaData(&opCtx, "a.b", md); ASSERT_STRING_CONTAINS(catalog->getIndexIdent(&opCtx, "a.b", "foo"), "a/index/"); ASSERT_TRUE(catalog->isUserDataIdent(catalog->getIndexIdent(&opCtx, "a.b", "foo"))); uow.commit(); }}
开发者ID:RyanBard，项目名称:mongo，代码行数:44，
注：本文中的uow函数示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。
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