public MsfDirectory(PdbReader reader, PdbFileHeader head, BitAccess bits)
{
bits.MinCapacity(head.directorySize);
int pages = reader.PagesFromSize(head.directorySize);
// 0..n in page of directory pages.
reader.Seek(head.directoryRoot, 0);
bits.FillBuffer(reader.reader, pages * 4);
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]));
}
}
}
public void WriteMeta(DataStream[] streams, BitAccess bits)
{
PdbFileHeader head = new PdbFileHeader(pageSize);
WriteDirectory(streams,
out head.directoryRoot,
out head.directorySize,
bits);
WriteFreeMap();
head.freePageMap = 2;
head.pagesUsed = usedBytes / pageSize;
writer.Seek(0, SeekOrigin.Begin);
head.Write(writer, bits);
}
private void WriteDirectory(DataStream[] streams,
out int directoryRoot,
out int directorySize,
BitAccess bits)
{
DataStream directory = new DataStream();
int pages = 0;
for (int s = 0; s < streams.Length; s++) {
if (streams[s].Length > 0) {
pages += streams[s].Pages;
}
}
int use = 4 * (1 + streams.Length + pages);
bits.MinCapacity(use);
bits.WriteInt32(streams.Length);
for (int s = 0; s < streams.Length; s++) {
bits.WriteInt32(streams[s].Length);
}
for (int s = 0; s < streams.Length; s++) {
if (streams[s].Length > 0) {
bits.WriteInt32(streams[s].pages);
}
}
directory.Write(this, bits.Buffer, use);
directorySize = directory.Length;
use = 4 * directory.Pages;
bits.MinCapacity(use);
bits.WriteInt32(directory.pages);
DataStream ddir = new DataStream();
ddir.Write(this, bits.Buffer, use);
directoryRoot = ddir.pages[0];
}
static void DumpVerbose(DataStream stream, PdbReader reader)
{
byte[] bytes = new byte[reader.PageSize];
if (stream.Length <= 0) {
return;
}
int left = stream.Length;
int pos = 0;
for (int page = 0; left > 0; page++) {
int todo = bytes.Length;
if (todo > left) {
todo = left;
}
stream.Read(reader, pos, bytes, 0, todo);
for (int i = 0; i < todo; i += 16) {
Console.Write("{0,7}:", pos + i);
DumpLineExt(bytes, i, todo);
Console.WriteLine();
}
left -= todo;
pos += todo;
}
}
public static void Dump(DataStream d)
{
Console.Write("DataStream({0} bytes", d.Length);
for (int i = 0; i < d.Pages; i++) {
Console.Write(",{0}", d.GetPage(i));
}
Console.WriteLine(")");
}
static void SplitStreams(Stream read, string split)
{
BitAccess bits = new BitAccess(4096);
// Read the header and directory from the old file.
// System.Diagnostics.Debugger.Break();
PdbFileHeader head = new PdbFileHeader(read, bits);
PdbReader reader = new PdbReader(read, head.pageSize);
MsfDirectory dir = new MsfDirectory(reader, head, bits);
byte[] buffer = new byte[head.pageSize];
// Copy the streams.
DataStream[] streams = new DataStream [dir.streams.Length];
for (int i = 0; i < dir.streams.Length; i++) {
streams[i] = new DataStream();
DataStream source = dir.streams[i];
if (source.Length <= 0) {
continue;
}
string name = String.Format("{0}.{1:d4}", split, i);
Console.WriteLine("{0,4}: --> {1}", i, name);
FileStream writer = new FileStream(name,
FileMode.Create,
FileAccess.Write);
int left = source.Length;
int pos = 0;
for (int page = 0; left > 0; page++) {
int todo = buffer.Length;
if (todo > left) {
todo = left;
}
dir.streams[i].Read(reader, pos, buffer, 0, todo);
writer.Write(buffer, 0, todo);
left -= todo;
pos += todo;
}
writer.Close();
}
}
static void CopyFile(Stream read, PdbWriter writer)
{
BitAccess bits = new BitAccess(4096);
// Read the header and directory from the old file.
// System.Diagnostics.Debugger.Break();
PdbFileHeader head = new PdbFileHeader(read, bits);
PdbReader reader = new PdbReader(read, head.pageSize);
MsfDirectory dir = new MsfDirectory(reader, head, bits);
byte[] buffer = new byte[head.pageSize];
// Copy the streams.
DataStream[] streams = new DataStream [dir.streams.Length];
for (int i = 0; i < dir.streams.Length; i++) {
streams[i] = new DataStream();
DataStream source = dir.streams[i];
if (source.Length <= 0) {
continue;
}
int left = source.Length;
int pos = 0;
for (int page = 0; left > 0; page++) {
int todo = buffer.Length;
if (todo > left) {
todo = left;
}
dir.streams[i].Read(reader, pos, buffer, 0, todo);
streams[i].Write(writer, buffer, todo);
left -= todo;
pos += todo;
}
}
writer.WriteMeta(streams, bits);
}
