internal 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];
}