internal static int markPage(StorageImpl db, int pageId, ClassDescriptor.FieldType type, int height)
{
Debug.Assert(pageId != 0);
Page pg = db.getGCPage(pageId);
int nPages = 1;
try
{
int i, n = getnItems(pg);
if (--height != 0)
{
if (type == ClassDescriptor.FieldType.tpString || type == ClassDescriptor.FieldType.tpArrayOfByte)
{ // page of strings
for (i = 0; i <= n; i++)
{
nPages += markPage(db, getKeyStrOid(pg, i), type, height);
}
}
else
{
for (i = 0; i <= n; i++)
{
nPages += markPage(db, getReference(pg, maxItems-i-1), type, height);
}
}
}
else
{
if (type == ClassDescriptor.FieldType.tpString || type == ClassDescriptor.FieldType.tpArrayOfByte)
{ // page of strings
for (i = 0; i < n; i++)
{
db.markOid(getKeyStrOid(pg, i));
}
}
else
{ // page of scalars
for (i = 0; i < n; i++)
{
db.markOid(getReference(pg, maxItems-1-i));
}
}
}
}
finally
{
db.pool.unfix(pg);
}
return nPages;
}