public DataFile(string filePath, long initialSize, int growthIncrement)
{
try
{
bool isNew = !File.Exists(filePath);
memoryMapper = new MemoryMapper(filePath, initialSize);
mapping = MemoryMapping.Create(memoryMapper.fs, Constants.AllocationGranularity);
dataFileHeaderPointer = (DataFileHeader *)mapping.GetBaseAddress();
this.growthIncrement = (growthIncrement + Constants.AllocationGranularityMask) / Constants.AllocationGranularity * Constants.AllocationGranularity;
if (isNew)
{
InitializeHeader();
}
else
{
ValidateHeader();
}
}
catch
{
Dispose();
throw;
}
}
public void Dispose()
{
if (IsDisposed)
{
return;
}
IsDisposed = true;
List <Exception> exceptions = new List <Exception>();
if (mapping != null)
{
try
{
mapping.Release();
mapping = null;
}
catch (Exception ex)
{
exceptions.Add(ex);
}
}
if (memoryMapper != null)
{
try
{
memoryMapper.Dispose();
memoryMapper = null;
}
catch (Exception ex)
{
exceptions.Add(ex);
}
}
if (exceptions.Count > 0)
{
throw new AggregateException(exceptions);
}
}
internal MemoryMappingSession(MemoryMapper mapper)
{
this.mapper = mapper;
mappings = new List <MemoryMapping>();
AddMapping(mapper.mapping);
}
