internal MsfDirectory(PdbStreamHelper reader, PdbFileHeader head, BitAccess bits)
{
int pages = reader.PagesFromSize(head.DirectorySize);
// 0..n in page of directory pages.
bits.MinCapacity(head.DirectorySize);
int directoryRootPages = head.DirectoryRoot.Length;
int pagesPerPage = head.PageSize / 4;
int pagesToGo = pages;
for (int i = 0; i < directoryRootPages; i++)
{
int pagesInThisPage = pagesToGo <= pagesPerPage ? pagesToGo : pagesPerPage;
reader.Seek(head.DirectoryRoot[i], 0);
bits.Append(reader.Reader, pagesInThisPage * 4);
pagesToGo -= pagesInThisPage;
}
bits.Position = 0;
DataStream stream = new DataStream(head.DirectorySize, bits, pages);
bits.MinCapacity(head.DirectorySize);
stream.Read(reader, bits);
// 0..3 in directory pages
int count;
bits.ReadInt32(out count);
// 4..n
int[] sizes = new int[count];
bits.ReadInt32(sizes);
// n..m
_streams = new DataStream[count];
for (int i = 0; i < count; i++)
{
if (sizes[i] <= 0)
{
_streams[i] = new DataStream();
}
else
{
_streams[i] = new DataStream(
sizes[i],
bits,
reader.PagesFromSize(sizes[i]));
}
}
}
internal MsfDirectory(PdbReader reader, PdbFileHeader head, BitAccess bits)
{
int pages = reader.PagesFromSize(head.directorySize);
// 0..n in page of directory pages.
bits.MinCapacity(head.directorySize);
int directoryRootPages = head.directoryRoot.Length;
int pagesPerPage = head.pageSize / 4;
int pagesToGo = pages;
for (int i = 0; i < directoryRootPages; i++) {
int pagesInThisPage = pagesToGo <= pagesPerPage ? pagesToGo : pagesPerPage;
reader.Seek(head.directoryRoot[i], 0);
bits.Append(reader.reader, pagesInThisPage * 4);
pagesToGo -= pagesInThisPage;
}
bits.Position = 0;
DataStream stream = new DataStream(head.directorySize, bits, pages);
bits.MinCapacity(head.directorySize);
stream.Read(reader, bits);
// 0..3 in directory pages
int count;
bits.ReadInt32(out count);
// 4..n
int[] sizes = new int[count];
bits.ReadInt32(sizes);
// n..m
streams = new DataStream[count];
for (int i = 0; i < count; i++) {
if (sizes[i] <= 0) {
streams[i] = new DataStream();
} else {
streams[i] = new DataStream(sizes[i], bits,
reader.PagesFromSize(sizes[i]));
}
}
}
