public PageManager(uint defaultPageSize, IPersistedStream persistedStream, IBufferPool bufferPool, ILockManager lockManager, InstrumentationInterface logger) { this.pageSize = defaultPageSize; this.persistedStream = persistedStream; this.lockManager = lockManager; this.logger = logger; this.bufferPool = bufferPool; this.AllocatationMapPages = new List <BitTrackingPage>(); if (!this.persistedStream.IsInitialized()) { logger.LogInfo("Initializing the persisted stream."); using (ITransaction tran = new NotLoggedTransaction()) { MixedPage allocationMapFirstPage = new MixedPage(pageSize, (ulong)AllocationMapPageId, new [] { new ColumnInfo(ColumnType.Int) }, PageManagerConstants.NullPageId, PageManagerConstants.NullPageId, new byte[4096], 0, tran); BitTrackingPage.NullifyMixedPage(allocationMapFirstPage, tran); this.AllocatationMapPages.Add(new BitTrackingPage(allocationMapFirstPage)); this.persistedStream.MarkInitialized(); } } else { // TODO: Read boot page. logger.LogInfo("Using already initialized stream."); ulong position = AllocationMapPageId * this.pageSize; MixedPage allocationMapFirstPage = (MixedPage)this.persistedStream.SeekAndRead(position, PageType.MixedPage, this.bufferPool, new ColumnInfo[] { new ColumnInfo(ColumnType.Int) }).Result; this.AllocatationMapPages.Add(new BitTrackingPage(allocationMapFirstPage)); using (ITransaction tran = new NotLoggedTransaction()) { // TODO: Here we only iterate the first page. // These pages need to be linked... foreach (int _ in this.AllocatationMapPages.First().FindAllSet(tran)) { this.pageCount++; } } } }
public PageManager(uint defaultPageSize, IPageEvictionPolicy evictionPolicy, IPersistedStream persistedStream) : this(defaultPageSize, persistedStream, new BufferPool(evictionPolicy, (int)defaultPageSize), new LockManager.LockManager(), new NoOpLogging()) { }