/// <summary>
/// Initizlizes the properties of the class.
/// </summary>
/// <param name="pageIndex">The index of the page to be accessed in the page table.</param>
/// <param name="processId">The process requesting the page access.</param>
/// <param name="accessType">The operation type: read / write.</param>
internal Command(int processId, int pageIndex, PageAccessType accessType)
{
ProcessId = processId;
PageIndex = pageIndex;
AccessType = accessType;
completed = false;
}
/// <summary>
/// Generates one command to be appended to the simulation's commands list.
/// </summary>
/// <param name="pid">Optional parameter. If given a value, the command will be assigned to given pid.
/// Otherwise the process id is also randomly generated.</param>
/// <returns>The randomly-generated command.</returns>
private Command GenerateCommand(List <Process> processes, int pid = -1)
{
//generate random operation: read / write
PageAccessType op = GenerateOperationType();
//pid = -1 => generate random pid (0..OS.ProcessCount) else use that pid
if (pid == -1)
{
pid = Generate(0, processes.Count);
}
//generate random page number (0..Process.PageTableSize)
int pageIndex = Generate(0, processes[pid].PageTableSize);
return(new Command(pid, pageIndex, op));
}