/// <summary>
/// Gets a list of all entries
/// </summary>
private List <LogicalEntry> GetEntries()
{
if (m_allentries == null)
{
List <LogicalEntry> entries = new List <LogicalEntry>();
{
long location = 0;
long length = m_datatablefilestructure.LastByte;
using (var view = m_datatablemapper.CreateView(FileStructure.StructureLength, length))
{
while ((location + LogicalEntry.StructureLength) < length)
{
LogicalEntry entry = new LogicalEntry();
view.Read(location, out entry);
location += LogicalEntry.StructureLength;
entries.Add(entry);
}
}
}
m_allentries = entries;
m_allentriesDictionary = m_allentries.ToDictionary(i => i.Id);
}
return(m_allentries);
}
/// <summary>
/// Saves an entry to data and data table
/// </summary>
/// <param name="Id">id of entry</param>
/// <param name="obj">object to be saved</param>
public void PushEntry(Guid Id, object obj)
{
//stream the object via serializer
var ms = Serialize(obj);
ms.Seek(0, SeekOrigin.Begin);
long lastbyte = 0;
var lastexpectedbyte = ms.Length;
{
lastbyte = m_datafilestructure.LastByte;
using (var mmfstream = m_datamapper.CreateStream(lastbyte, lastexpectedbyte))
{
ms.CopyTo(mmfstream);
mmfstream.Close();
m_datafilestructure.LastByte += lastexpectedbyte;
}
}
{
//create a logical entry with start/end of serialized object
LogicalEntry le = new LogicalEntry();
le.Id = Id;
le.Length = ms.Length;
le.Offset = lastbyte;
//save entry
using (var view = m_datatablemapper.CreateView(m_datatablefilestructure.LastByte, LogicalEntry.StructureLength))
{
view.Write(0, ref le);
m_datatablefilestructure.LastByte += LogicalEntry.StructureLength;
}
m_allentries.Add(le);
m_allentriesDictionary[le.Id] = le;
}
MaintainHeaders();
}
