public File(OnDiskMemoryMappedFileCollection owner, uint index, string fileName)
{
_owner = owner;
_index = index;
_fileName = fileName;
_stream = new FileStream(fileName, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.Read, 1,
FileOptions.None);
_trueLength = _stream.Length;
_cachedLength = _trueLength;
_writer = new Writer(this);
}
public void Reader()
{
IEnumerable <KeyValuePair <long, Tick> > flow = TicksGenerator.GetFlow(1000000, KeysType.Random);
//passed
//using (var fileCollection = new OnDiskFileCollection("data"))
//failed
using (var fileCollection = new OnDiskMemoryMappedFileCollection("data"))
//passed
//using (var fileCollection = new InMemoryFileCollection())
{
using (IKeyValueDB db = new KeyValueDB(fileCollection, new SnappyCompressionStrategy(), (uint)Int16.MaxValue * 10))
{
using (var tr = db.StartTransaction())
{
foreach (KeyValuePair <long, Tick> item in flow)
{
byte[] key = Direct(item.Key);
byte[] value = FromTick(item.Value);
tr.CreateOrUpdateKeyValue(key, value);
}
tr.Commit();
}
flow = TicksGenerator.GetFlow(1000000, KeysType.Random);
foreach (KeyValuePair <long, Tick> item in flow)
{
using (var tr = db.StartTransaction())
{
byte[] key = Direct(item.Key);
bool find = tr.FindExactKey(key);
if (find)
{
var id = Reverse(tr.GetKeyToArray());
var tick = ToTick(tr.GetValue().ToArray());
Assert.Equal(item.Key, id);
}
}
}
}
}
}
