public Comparator(string name, Comparison <NativeArray> comparison)
{
GCHandle selfHandle = default(GCHandle);
try
{
var utf = Encoding.UTF8.GetBytes(name);
NativeName = Marshal.AllocHGlobal(utf.Length + 1);
Marshal.Copy(utf, 0, NativeName, utf.Length);
Comparison = comparison;
selfHandle = GCHandle.Alloc(this);
_handle = LevelDBInterop.leveldb_comparator_create(
GCHandle.ToIntPtr(selfHandle),
Marshal.GetFunctionPointerForDelegate(Destructor),
Marshal.GetFunctionPointerForDelegate(Compare),
Marshal.GetFunctionPointerForDelegate(GetName));
if (_handle == IntPtr.Zero)
{
throw new ApplicationException("Failed to initialize LevelDB comparator");
}
}
catch
{
if (selfHandle != default(GCHandle))
{
selfHandle.Free();
}
if (NativeName != IntPtr.Zero)
{
Marshal.FreeHGlobal(NativeName);
}
throw;
}
}
