/// <summary>
/// Fetches and executes the next <see cref="Instruction"/>.
/// </summary>
public void Step()
{
var instruction = Fetch();
try
{
Decode(instruction);
Execute(instruction);
Tick?.Invoke(this, new EventArgs());
if (instruction == Instruction.HALT)
{
Halt?.Invoke(this, new EventArgs());
}
if (instruction == Instruction.RESET)
{
Reset?.Invoke(this, new ResetEventArgs(instruction, null));
}
}
catch (Exception e)
{
continueExecution = false;
Initialize();
Reset?.Invoke(this, new ResetEventArgs(instruction, e));
// FUTURE: don't throw exception?
throw;
}
}
private Halt CreateModel(HaltBindingModel model, Halt halt)
{
halt.Name = model.Name;
halt.Address = model.Address;
halt.OperatorID = model.OperatorID;
return halt;
}
private static int FeedbackSet(long[] input, IntCodeProgram[] amplifiers, List <int> phaseSettingSequence)
{
for (int i = 0; i < amplifiers.Length; i++)
{
amplifiers[i] = new IntCodeProgram(input, phaseSettingSequence[i]);
}
amplifiers[0].Input.Enqueue(0);
Queue <IntCodeProgram> amplifiersQueue = new Queue <IntCodeProgram>(amplifiers);
Queue <long> nextInput = new Queue <long>();
while (amplifiersQueue.Count > 0)
{
IntCodeProgram amp = amplifiersQueue.Dequeue();
OutputToInput(nextInput, amp.Input);
Halt haltType = amp.Run();
OutputToInput(amp.Output, nextInput);
if (haltType == Halt.NeedInput)
{
amplifiersQueue.Enqueue(amp);
}
}
return((int)nextInput.Single());
}
public MIPS Visitor(Halt instance, IFunctionCil function, GenerateToCil cil)
{
return(new MIPS()
{
Functions = new List <string>()
{
"eret"
}
});
}
public static TimeSpan?GetAbfahrt <T>(this Halt <T> halt)
where T : Zug
{
var result = halt.AbfahrtPlan;
if (halt is HaltDispo dispoHalt)
{
result = dispoHalt.AbfahrtIst ?? dispoHalt.AbfahrtSoll ?? halt.AbfahrtPlan;
}
return(result);
}
public void Announce(Event ev, object payload = null)
{
Assert(ev != null, "Machine cannot announce a null event");
if (ev is PHalt)
{
ev = new Halt();
}
var oneArgConstructor = ev.GetType().GetConstructors().First(x => x.GetParameters().Length > 0);
var @event = (Event)oneArgConstructor.Invoke(new[] { payload });
AnnounceInternal(@event);
}
private void Initialize()
{
// startup state
Address.IsEnabled = true;
BusAcknowledge.Write(DigitalLevel.High);
Halt.Write(DigitalLevel.High);
IoRequest.Write(DigitalLevel.High);
MemoryRequest.Write(DigitalLevel.High);
MachineCycle1.Write(DigitalLevel.High);
Refresh.Write(DigitalLevel.High);
Read.Write(DigitalLevel.High);
Write.Write(DigitalLevel.High);
}
public static DateTime?GetAnkunftPath <T>(this Halt <T> halt, bool preferPrognosis)
where T : Zug
{
var result = halt.AnkunftPlan;
if (halt is HaltDispo dispoHalt)
{
result = preferPrognosis
? dispoHalt.AnkunftPrognose ?? dispoHalt.AnkunftSoll
: dispoHalt.AnkunftSoll;
}
return(result.ToDateTime());
}
public void Run()
{
long opCode;
while (true)
{
opCode = Read();
if (opCode % DecoderConstants.NumberOfCodeValues == 99)
{
Halt?.Invoke(this, EventArgs.Empty);
break;
}
Decode(_opCodeHandlers[opCode % 100], opCode);
}
}
public void Delete(HaltBindingModel model)
{
using (var context = new TourFirmDatabase())
{
Halt element = context.Halts.FirstOrDefault(rec => rec.ID == model.ID);
if (element != null)
{
context.Halts.Remove(element);
context.SaveChanges();
}
else
{
throw new Exception("Элемент не найден");
}
}
}
/// <summary>
/// Scrapes data from the NUFORC web portal, deserializes it into Report objects
/// Multithreaded, takes a lot of CPU and memory to run, and is more or less a DDOS if done wrong
/// Ensure parameters are properly set before starting
/// </summary>
/// <returns></returns>
public IEnumerable <Report> GetReports(ISet <int> currentIds)
{
IsRunning = true;
Halt = false;
var newReports = new HashSet <Report>();
var web = new HtmlWeb();
var homeDoc = web.Load(BaseUrl + "webreports.html");
// from front page, go to "by state"
var stateIndexLink = BaseUrl + homeDoc.QuerySelector(Selectors.indexSelector).Attributes["href"].Value;
var stateIndexDoc = web.Load(stateIndexLink);
// number of pending requests to the NUFORC site, decrements once the web page is received
int requestsInFlight = 0;
// get list of links to state pages
var stateLinkNodes = stateIndexDoc.QuerySelectorAll(Selectors.tableLinkSelector);
// Main loop, forks threads to independently open and close pages as they load
do
{
foreach (var s in stateLinkNodes)
{
web = new HtmlWeb();
var stateLink = BaseUrl + "webreports/" + s.Attributes["href"].Value;
// throttle requests when too many are in flight
while (requestsInFlight > MaxInFlight)
{
Thread.Sleep(ThrottleTimeout);
}
requestsInFlight++;
// spin off threads for each state
web.LoadFromWebAsync(stateLink).ContinueWith((state_task) =>
{
try { state_task.Wait(); }
catch { return; }
requestsInFlight--;
if (!state_task.IsCompletedSuccessfully)
{
return;
}
var stateDoc = state_task.Result;
// get list of links to individual reports (same selector)
var reportLinkNodes = stateDoc.QuerySelectorAll(Selectors.tableLinkSelector);
foreach (var r in reportLinkNodes)
{
// add another short lived web client!
var webTemp = new HtmlWeb();
var reportLink = BaseUrl + "webreports/" + r.Attributes["href"].Value;
// extract ID from url, use that as the ID
bool parseResult = int.TryParse(reportLink.Substring(reportLink.LastIndexOf('/') + 2).Replace(".html", ""), out int reportId);
// check against duplicates and failed lookups
if (!parseResult || currentIds.Contains(reportId))
{
continue;
}
// throttle requests when to many are in flight
while (requestsInFlight >= MaxInFlight)
{
Thread.Sleep(ThrottleTimeout);
}
requestsInFlight++;
// spin off *another* thread to load the report pages
webTemp.LoadFromWebAsync(reportLink).ContinueWith((report_task) =>
{
try
{ report_task.Wait(); }
catch { return; }
finally { requestsInFlight--; }
// bail out if the request failed
if (!report_task.IsCompletedSuccessfully)
{
return;
}
var reportDoc = report_task.Result;
// get the details and description of the report
var reportTable = reportDoc.QuerySelectorAll("tr td");
// report wasn't found, got a different page
if (reportTable.Count < 2)
{
return;
}
var details = reportTable[0].InnerHtml;
var description = reportTable[1];
// bail out if we've hit the max batch in any thread
if (Halt.Equals(true) || (BatchSize != -1 && newReports.Count > BatchSize))
{
Halt = true;
return;
}
// for this row: the left most portion is the date, the rightmost is the time, the middle is usually useless
var reportDateTimes = Regex.Match(details, RegularExpressions.dateReported).Value.Split(' ');
// there is
newReports.Add(new Report()
{
ReportId = reportId,
DateOccurred = DateTime.Parse(Regex.Match(details, RegularExpressions.dateOccured).Value),
DateSubmitted = DateTime.Parse(reportDateTimes[0] + reportDateTimes[reportDateTimes.Length - 1]),
DatePosted = DateTime.Parse(Regex.Match(details, RegularExpressions.datePosted).Value),
Location = Regex.Match(details, RegularExpressions.location).Value,
Shape = ShapeUtility.ShapeAliases(Regex.Match(details, RegularExpressions.shape).Value),
Duration = Regex.Match(details, RegularExpressions.duration).Value,
Description = description.InnerText
});
Console.WriteLine(newReports.Count);
});
if (Halt.Equals(true))
{
break;
}
}
});
if (Halt.Equals(true))
{
break;
}
}
} while (requestsInFlight > 0 || Halt.Equals(false));
// reset initial conditions
Halt = false;
IsRunning = false;
return(newReports);
}
public override void OnHalt(MachineId machineId, int inboxSize)
{
base.OnHalt(machineId, inboxSize);
Halt?.Invoke(machineId, inboxSize);
}
protected HaltTests()
{
TestedInstruction = new Halt();
}
private void UpdateHalt()
{
if (dataGridView2.SelectedRows.Count == 0)
return;
string haltId = (string)dataGridView2.SelectedRows[0].Cells["HaltId"].Value;
h = activeRoute.GetHaltById(haltId);
}
protected virtual void OnHalt(EventArgs e)
{
Halt?.Invoke(this, e);
}
