public static void ChangePriority(string Name, string Priority)
{
int NewPriority = 0;
if (!int.TryParse(Priority, out NewPriority))
{
Console.WriteLine("Podana wartosc nie jest liczba.");
return;
}
if (NewPriority >= 0 && NewPriority <= 7)
{
PCB pcb = PCB.GetPCB(Name);
if (pcb != null)
{
pcb.CurrentPriority = NewPriority;
pcb.StartPriority = NewPriority;
pcb.WaitingForProcessorTime = 1;
Console.WriteLine("Ustawiono nowy priorytet (" + NewPriority + ") dla procesu " + Name + ".");
}
}
else
{
Console.WriteLine("Priorytet procesu musi miescic sie w zakresie od 0 do 7.");
}
}
public static void ResumeProcess(string Name)
{
PCB pcb = PCB.GetPCB(Name);
if (pcb != null)
{
pcb.StopWaiting();
}
}
public static void SleepProcess(string Name)
{
PCB pcb = PCB.GetPCB(Name);
if (pcb != null)
{
pcb.WaitForSomething();
}
}
public static void ShowPCB(string Name)
{
PCB pcb = PCB.GetPCB(Name);
if (pcb != null)
{
pcb.PrintAllFields();
}
}
public static void StopProcess(string Name)
{
PCB pcb = PCB.GetPCB(Name);
if (pcb != null)
{
pcb.TerminateProcess(ReasonOfProcessTerminating.UserClosed);
}
}
public static PCB CreateIdleProcess()
{
Console.WriteLine("Tworzenie procesu bezczynnosci systemu...");
PCB Idle = new PCB("ProcesBezczynnosci", 7, "idle.txt", SourceOfCode.WindowsDisc);
Idle._PID = 0;
Idle.StartPriority = 8;
Idle.CurrentPriority = 8;
Idle.RunNewProcess();
Idle.RunReadyProcess();
return(Idle);
}
public static void RunNewProcess(string Name)
{
if (Name == "-all")
{
PCB.RunAllNewProcesses();
}
else
{
PCB pcb = PCB.GetPCB(Name);
if (pcb != null)
{
pcb.RunNewProcess();
}
}
}
public void Lock(PCB Proces)
{
if (Check())
{
proces = Proces;
this.Name = proces.Name;
open = 1;
proces.WaitForSomething();
Proces.InstructionCounter--;
}
else
{
waiting.Add(Proces);
Proces.WaitForSomething();
Proces.InstructionCounter--;
}
}
public void Unlock(string name)
{
if (!Check())
{
if (waiting.Count() > 0)
{
if (!Check(name))
{
foreach (var i in waiting)
{
if (name == i.Name)
{
i.StopWaiting();
waiting.Remove(i);
break;
}
}
}
else
{
proces.StopWaiting();
proces = waiting[0];
waiting.Remove(proces);
this.Name = proces.Name;
}
}
else if (waiting.Count() == 0)
{
if (Check(name))
{
proces.StopWaiting();
open = 0;
}
}
}
}
/// <summary>
/// Zamyka proces (stan = terminated)
/// </summary>
/// <param name="ClosingProcess">Proces zamykający (tylko, jesli przyczyna = KilledByOther, w p.p. null)</param>
/// <returns>
/// 0 - zamknięto proces
/// 1 - proces oczekuje na zamkniecie
/// 2 - jeśli zamykany przez inny proces, nie podano procesu zamykającego
/// 3 - próba zamknięcia procesu systemowego
/// </returns>
public int TerminateProcess(ReasonOfProcessTerminating Reason, PCB ClosingProcess = null, int ExitCode = 0)
{
if (Reason == ReasonOfProcessTerminating.KilledByOther && ClosingProcess == null)
{
Console.WriteLine("Blad zamykania procesu: nie podano procesu zamykajacego.");
return(2);
}
if (PID == 0)
{
Console.WriteLine("Nie mozna zamknac procesu systemowego.");
return(3);
}
string ReasonString = "(brak powodu)";
switch (Reason)
{
case ReasonOfProcessTerminating.Ended:
ReasonString = "Proces sie zakonczyl.";
break;
case ReasonOfProcessTerminating.ThrownError:
ReasonString = "Wystapil blad w procesie.";
break;
case ReasonOfProcessTerminating.UserClosed:
ReasonString = "Proces zostal zakmniety przez uzytkownika.";
break;
case ReasonOfProcessTerminating.CriticalError:
ReasonString = "Program spowodowal wystapienie bledu krytycznego i zostal zamkniety przez system.";
break;
case ReasonOfProcessTerminating.KilledByOther:
ReasonString = "Proces zostal zamkniety przez proces " + ClosingProcess.ToString() + ".";
break;
case ReasonOfProcessTerminating.ClosingSystem:
ReasonString = "Proces zostal zamkniety z powodu zamykania systemu.";
break;
}
if (State == ProcessState.Running)
{
State = ProcessState.Terminated;
CPU.Scheduler.GetInstance.RemoveProcess(this);
Console.WriteLine("Zakonczono proces " + this.ToString() + ".");
Console.WriteLine("Powod zamkniecia: " + ReasonString);
Console.WriteLine("Kod wyjscia procesu: " + ExitCode.ToString());
this.RemoveProcess();
return(0);
}
else
{
WaitingForStopping = true;
Console.WriteLine("Oczekiwanie na zamkniecie procesu: " + this.ToString() + ".");
Console.WriteLine("Proces zostanie zamkniety po przejsciu do stanu Running.");
Console.WriteLine("Kod wyjscia procesu: " + ExitCode.ToString());
Console.WriteLine("Powod zamkniecia: " + ReasonString);
//Zablokuj proces zamykający
if (Reason == ReasonOfProcessTerminating.KilledByOther)
{
this.ClosingProcess = ClosingProcess;
StopperLock.Lock(ClosingProcess);
}
return(1);
}
}
public static void ShowAllProcesses()
{
PCB.PrintAllPCBs();
}
