tools/pdb2mdb/PdbReader.cs

   1 //-----------------------------------------------------------------------------
   2 //
   3 // Copyright (C) Microsoft Corporation.  All Rights Reserved.
   4 //
   5 //-----------------------------------------------------------------------------
   6 using System;
   7 using System.IO;
   8
   9 namespace Microsoft.Cci.Pdb {
  10   internal class PdbReader {
  11     internal PdbReader(Stream reader, int pageSize) {
  12       this.pageSize = pageSize;
  13       this.reader = reader;
  14     }
  15
  16     internal void Seek(int page, int offset) {
  17       reader.Seek(page * pageSize + offset, SeekOrigin.Begin);
  18     }
  19
  20     internal void Read(byte[] bytes, int offset, int count) {
  21       reader.Read(bytes, offset, count);
  22     }
  23
  24     internal int PagesFromSize(int size) {
  25       return (size + pageSize - 1) / (pageSize);
  26     }
  27
  28     internal int PageSize {
  29       get { return pageSize; }
  30     }
  31
  32     internal readonly int pageSize;
  33     internal readonly Stream reader;
  34   }
  35 }