Microsoft.Cci.Pdb.PdbFileHeader.PdbFileHeader C# (CSharp) Method

        internal PdbFileHeader(Stream reader, BitAccess bits)
        {
            bits.MinCapacity(56);
              reader.Seek(0, SeekOrigin.Begin);
              bits.FillBuffer(reader, 52);

              this.magic = new byte[32];
              bits.ReadBytes(this.magic);                 //   0..31
              bits.ReadInt32(out this.pageSize);          //  32..35
              bits.ReadInt32(out this.freePageMap);       //  36..39
              bits.ReadInt32(out this.pagesUsed);         //  40..43
              bits.ReadInt32(out this.directorySize);     //  44..47
              bits.ReadInt32(out this.zero);              //  48..51

              if (Magic != MAGIC) {
            throw new InvalidOperationException("Magic is wrong.");
              }
              int directoryPages = ((((directorySize + pageSize - 1) / pageSize) * 4) + pageSize - 1) / pageSize;
              this.directoryRoot = new int[directoryPages];
              bits.FillBuffer(reader, directoryPages * 4);
              bits.ReadInt32(this.directoryRoot);
        }