public void Dispose()
{
if (_engine != null)
{
_engine.Dispose();
}
}
public void Execute(ref LiteEngine db, StringScanner s, Display display)
{
if (db != null)
{
db.Dispose();
db = null;
}
}
public void Execute(LiteEngine engine, StringScanner s, Display display, InputCommand input, Env env)
{
if (engine != null)
{
engine.Dispose();
}
input.Running = false;
}
public void Close()
{
if (_engine != null)
{
_engine.Dispose();
_engine = null;
}
}
public void Execute(ref LiteEngine db, StringScanner s, Display display)
{
if (db != null)
{
db.Dispose();
}
db = new LiteEngine(s.Scan(".*"));
}
public void Dispose()
{
_db.Dispose();
}
public void Dispose()
{
_db.Dispose();
File.Delete(_filename);
}
public void Execute(LiteEngine db, StringScanner s, Display display)
{
db.Dispose();
}
public void Execute(LiteEngine engine, StringScanner s, Display display, InputCommand input, Env env)
{
if(engine != null) engine.Dispose();
input.Running = false;
}
//[TestMethod]
public void Stress_Test()
{
// The most important test:
// - Create 3 task read/write operations in same file.
// - Insert, update, delete same documents
// - Insert big files
// - Delete all documents
// - Insert a big file (use all pages)
// - Read this big file and test md5
var file = DB.Path(true, "stress.db");
var rnd = new Random(DateTime.Now.Second);
var N = 100;
var a = new LiteEngine(file);
var b = new LiteEngine(file);
var c = new LiteEngine(file);
var d = new LiteEngine(file);
// Task A -> Insert 100 documents
var ta = Task.Factory.StartNew(() =>
{
var col = a.GetCollection("col1");
for (var i = 1; i <= N; i++)
{
col.Insert(CreateDoc(i, "My String Guided " + Guid.NewGuid().ToString("n")));
}
});
// Task B -> Update 100 documents
var tb = Task.Factory.StartNew(() =>
{
var col = b.GetCollection("col1");
var i = 1;
while (i < N)
{
//Task.Delay(rnd.Next(100, 500));
var success = col.Update(CreateDoc(i, "update value"));
if (success)
{
i++;
}
}
});
//// TasK C -> Delete 99 documents (keep only _id = 1)
//var tc = Task.Factory.StartNew(() =>
//{
// var col = c.GetCollection("col1");
// var i = 2;
// while (i < N)
// {
// Task.Delay(rnd.Next(100, 500));
// var success = col.Delete(i);
// if (success) i++;
// }
//});
// Task D -> Upload 20 files
// Now, test data
Task.WaitAll(ta, tb); //, tb, tc);
using (var db = new LiteEngine(file))
{
var col = db.GetCollection("col1");
Assert.AreEqual(1, col.Count());
var doc = col.FindById(1);
Assert.AreEqual("update value", doc["Name"].AsString);
}
a.Dispose();
b.Dispose();
c.Dispose();
}
public static void Start(InputCommand input, Display display)
{
var commands = new List <ICommand>();
var env = new Env();
LiteEngine engine = null;
// register commands
RegisterCommands(commands);
display.TextWriters.Add(Console.Out);
// show welcome message
display.WriteWelcome();
while (input.Running)
{
// read next command from user or queue
var cmd = input.ReadCommand();
if (string.IsNullOrEmpty(cmd))
{
continue;
}
try
{
var s = new StringScanner(cmd);
var found = false;
// test all commands
foreach (var command in commands)
{
if (!command.IsCommand(s))
{
continue;
}
// open datafile before execute
if (command.Access != DataAccess.None)
{
engine = env.CreateEngine(command.Access);
}
command.Execute(engine, s, display, input, env);
// close datafile to be always disconnected
if (engine != null)
{
engine.Dispose();
engine = null;
}
found = true;
break;
}
if (!found)
{
throw new ShellException("Command not found");
}
}
catch (Exception ex)
{
display.WriteError(ex.Message);
}
}
}
