Changeset 147 for MicroThreading


Ignore:
Timestamp:
Jan 26, 2011, 8:06:25 AM (14 years ago)
Author:
george
Message:
  • Added: Now multiple thread managers are running within single scheduler.
Location:
MicroThreading
Files:
4 edited

Legend:

Unmodified
Added
Removed

  • MicroThreading/Demo/Demo.lpi

    r146 r147  
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    … …  
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  • MicroThreading/Demo/UMainForm.lfm

    r146 r147  
    11object Form1: TForm1
    2   Left = 231
     2  Left = 235
    33  Height = 510
    4   Top = 48
     4  Top = 44
    55  Width = 798
    66  Caption = 'MicroThreading demo'
    … …  
    6868  object Memo1: TMemo
    6969    Left = 10
    70     Height = 379
    71     Top = 128
     70    Height = 267
     71    Top = 240
    7272    Width = 294
    7373    Anchors = [akTop, akLeft, akBottom]
    … …  
    7878    Left = 224
    7979    Height = 25
    80     Top = 96
     80    Top = 208
    8181    Width = 75
    8282    Caption = 'Button2'
    … …  
    8787    Left = 10
    8888    Height = 25
    89     Top = 96
     89    Top = 208
    9090    Width = 75
    9191    Caption = 'Coroutine'
    … …  
    9696    Left = 10
    9797    Height = 14
    98     Top = 80
     98    Top = 192
    9999    Width = 32
    100100    Caption = 'Label2'
    … …  
    102102  end
    103103  object Button4: TButton
    104     Left = 120
     104    Left = 10
    105105    Height = 25
    106     Top = 12
     106    Top = 48
    107107    Width = 88
    108108    Caption = 'Start workers'
    … …  
    111111  end
    112112  object SpinEdit1: TSpinEdit
    113     Left = 217
     113    Left = 216
    114114    Height = 21
    115     Top = 13
     115    Top = 48
    116116    Width = 82
    117117    MaxValue = 100000
    118118    MinValue = 1
    119119    TabOrder = 6
    120     Value = 20
     120    Value = 200
    121121  end
    122122  object Button5: TButton
    123123    Left = 168
    124124    Height = 25
    125     Top = 48
     125    Top = 160
    126126    Width = 131
    127127    Caption = 'Get max TThread count'
    … …  
    132132    Left = 88
    133133    Height = 25
    134     Top = 48
     134    Top = 160
    135135    Width = 75
    136136    Caption = 'Button6'
    137137    OnClick = Button6Click
    138138    TabOrder = 8
     139  end
     140  object SpinEdit2: TSpinEdit
     141    Left = 216
     142    Height = 21
     143    Top = 13
     144    Width = 82
     145    TabOrder = 9
     146    Value = 1
     147  end
     148  object Label3: TLabel
     149    Left = 120
     150    Height = 14
     151    Top = 20
     152    Width = 69
     153    Caption = 'Thread count:'
     154    ParentColor = False
     155  end
     156  object Label4: TLabel
     157    Left = 104
     158    Height = 14
     159    Top = 48
     160    Width = 92
     161    Caption = 'Microthread count:'
     162    ParentColor = False
    139163  end
    140164  object Timer1: TTimer

  • MicroThreading/Demo/UMainForm.pas

    r146 r147  
    2828    Label1: TLabel;
    2929    Label2: TLabel;
     30    Label3: TLabel;
     31    Label4: TLabel;
    3032    ListView1: TListView;
    3133    Memo1: TMemo;
    3234    SpinEdit1: TSpinEdit;
     35    SpinEdit2: TSpinEdit;
    3336    Timer1: TTimer;
    3437    procedure Button1Click(Sender: TObject);
    … …  
    8992    Button1.Caption := 'Stop scheduler';
    9093    Memo1.Clear;
     94    Scheduler.ThreadPoolSize := SpinEdit2.Value;
    9195    Scheduler.Start;
    9296  end else begin
    9397    Button1.Caption := 'Start scheduler';
    9498    Scheduler.Stop;
     99    Scheduler.ThreadPoolSize := 0;
    95100  end;
    96101end;
    … …  
    227232var
    228233  I: Integer;
     234  Q: Integer;
    229235const
    230236  TotalSteps = 100;
    … …  
    233239    Memo1.Lines.Add('Worker ' + IntToStr(Id));
    234240    for I := 0 to TotalSteps - 1 do begin
    235       Memo1.Lines.Add(IntToStr(Id) + ': ' + IntToStr(I) + ' ' +
    236         FloatToStr(ExecutionTime));
     241      Q := 0;
     242      while Q < 1000000 do Inc(Q);
     243      //Memo1.Lines.Add(IntToStr(Id) + ': ' + IntToStr(I) + ' ' +
     244      //  FloatToStr(ExecutionTime));
    237245      Completion := I / TotalSteps;
    238246      //Sleep(1 * Id * OneMillisecond);

  • MicroThreading/UMicroThreading.pas

    r146 r147  
    3434    FStackSize: Integer;
    3535    FBasePointer: Pointer;
    36     FWakeupTime: TDateTime;
     36    FWakeUpTime: TDateTime;
    3737    FTerminated: Boolean;
    3838    FExecuted: Boolean; // At first go through Execute method, then switch context
    3939    FFinished: Boolean;
     40    FSuspended: Boolean;
     41    FState: TMicroThreadState;
     42    FScheduler: TMicroThreadScheduler;
     43    FManager: TMicroThreadManager;
     44    FId: Integer;
    4045  public
    41     Id: Integer;
    4246    Name: string;
    4347    Priority: Integer;
    44     State: TMicroThreadState;
    45     Manager: TMicroThreadManager;
    46     Scheduler: TMicroThreadScheduler;
    4748    Completion: Single; // Can be used for progress information in range <0, 1>
    4849    procedure Execute; virtual;
    4950
    50     // Internal execution
    5151    procedure Yield;
    5252    procedure Sleep(Duration: TDateTime);
    5353    function WaitForSignal(Signal: TEvent): TWaitResult;
    54 
    55     // External execution
    5654    procedure WaitFor;
    5755    procedure Terminate;
    5856    procedure Start;
    59     procedure Stop;
     57    procedure Resume;
     58    procedure Suspend;
    6059
    6160    constructor Create(CreateSuspended: Boolean;
    6261      const StackSize: SizeUInt = DefaultStackSize);
    6362    destructor Destroy; override;
     63    property Id: Integer read FId;
     64    property State: TMicroThreadState read FState;
    6465    property ExecutionTime: TDateTime read FExecutionTime;
    6566    property FreeOnTerminate: Boolean read FFreeOnTerminate
    6667      write FFreeOnTerminate;
    6768    property Terminated: Boolean read FTerminated;
     69    property Scheduler: TMicroThreadScheduler read FScheduler;
     70    property Manager: TMicroThreadManager read FManager;
    6871  end;
    6972
    … …  
    8083
    8184  TMicroThreadSchedulerPoolThread = class(TThread)
    82     Scheduler: TMicroThreadScheduler;
    8385    Manager: TMicroThreadManager;
    8486    procedure Execute; override;
     87    constructor Create(CreateSuspended: Boolean;
     88      const StackSize: SizeUInt = DefaultStackSize);
     89    destructor Destroy; override;
    8590  end;
    8691
    8792  TThreadPool = class(TObjectList)
    88 
    8993  end;
    9094
    … …  
    116120    ThreadPool: TThreadPool;
    117121    RoundRobinIndex: Integer;
    118     LastId: Integer;
     122    FLastId: Integer;
    119123    FFrequency: Int64;
    120     FThreadPoolSize: Integer;
    121124    FTerminated: Boolean;
    122125    function GetMicroThreadCount: Integer;
    … …  
    171174        TMicroThread(MicroThreads[I]).FStackSize))) do Inc(I);
    172175      if I < MicroThreads.Count then begin
    173         Result := TMicroThread(MicroThreads[I]).Id;
     176        Result := TMicroThread(MicroThreads[I]).FId;
    174177      end else Result := -1;
    175178    finally
    … …  
    194197var
    195198  I: Integer;
    196   Time: TDateTime;
    197 begin
    198   Time := Scheduler.GetNow;
     199  CurrentTime: TDateTime;
     200begin
     201  CurrentTime := Scheduler.GetNow;
    199202  if Assigned(CurrentMicroThread) then begin
    200     CurrentMicroThread.FExecutionEndTime := Time;
     203    CurrentMicroThread.FExecutionEndTime := CurrentTime;
    201204    CurrentMicroThread.FExecutionTime := CurrentMicroThread.FExecutionTime +
    202205      (CurrentMicroThread.FExecutionEndTime - CurrentMicroThread.FExecutionStartTime);
    203     if CurrentMicroThread.State = tsRunning then
    204       CurrentMicroThread.State := tsWaiting;
     206    if CurrentMicroThread.FState = tsRunning then
     207      CurrentMicroThread.FState := tsWaiting;
    205208    StaticMicroThread := CurrentMicroThread;
    206209    asm
    … …  
    212215      mov [eax].TMicroThread.FBasePointer, edx
    213216    end;
    214     StaticManager := CurrentMicroThread.Manager;
     217    StaticManager := CurrentMicroThread.FManager;
    215218    asm
    216219      // Restore scheduler stack
    … …  
    221224      mov ebp, edx
    222225    end;
    223     CurrentMicroThread.Manager := nil;
     226    CurrentMicroThread.FManager := nil;
    224227    CurrentMicroThread := nil;
    225228  end;
    … …  
    228231
    229232  if Assigned(CurrentMicroThread) and (FExecutedCount < FExecuteCount) then begin
    230     CurrentMicroThread.Manager := Self;
     233    CurrentMicroThread.FManager := Self;
    231234    Inc(FExecutedCount);
    232235    asm
    … …  
    240243    if not CurrentMicroThread.FExecuted then begin
    241244      CurrentMicroThread.FExecuted := True;
    242       CurrentMicroThread.State := tsRunning;
    243       CurrentMicroThread.FExecutionStartTime := Time;
     245      CurrentMicroThread.FState := tsRunning;
     246      CurrentMicroThread.FExecutionStartTime := CurrentTime;
    244247      StaticMicroThread := CurrentMicroThread;
    245248      asm
    … …  
    257260      end;
    258261      //FSelected.Method(FSelected);
    259       StaticManager := CurrentMicroThread.Manager;
     262      StaticManager := CurrentMicroThread.FManager;
    260263      asm
    261264        // Restore scheduler stack
    … …  
    266269        mov ebp, edx
    267270      end;
    268       CurrentMicroThread.Manager := nil;
    269       CurrentMicroThread.FExecutionEndTime := Time;
     271      CurrentMicroThread.FManager := nil;
     272      CurrentMicroThread.FExecutionEndTime := CurrentTime;
    270273      CurrentMicroThread.FExecutionTime := CurrentMicroThread.FExecutionTime +
    271274       (CurrentMicroThread.FExecutionEndTime - CurrentMicroThread.FExecutionStartTime);
    … …  
    285288    if CurrentMicroThread.State = tsWaiting then begin
    286289      // Execute selected thread
    287       CurrentMicroThread.State := tsRunning;
    288       CurrentMicroThread.FExecutionStartTime := Time;
     290      CurrentMicroThread.FState := tsRunning;
     291      CurrentMicroThread.FExecutionStartTime := CurrentTime;
    289292      FTempPointer := CurrentMicroThread.FStackPointer;
    290293      asm
    … …  
    334337end;
    335338
     339constructor TMicroThreadSchedulerPoolThread.Create(CreateSuspended: Boolean;
     340  const StackSize: SizeUInt);
     341begin
     342  inherited;
     343  Manager := TMicroThreadManager.Create;
     344end;
     345
     346destructor TMicroThreadSchedulerPoolThread.Destroy;
     347begin
     348  Manager.Free;
     349  inherited Destroy;
     350end;
     351
    336352{ TMicroThreadMethod }
    337353
    … …  
    352368procedure TMicroThread.Yield;
    353369begin
    354   Manager.Yield;
     370  FManager.Yield;
    355371end;
    356372
    … …  
    365381procedure TMicroThread.Sleep(Duration: TDateTime);
    366382begin
    367   FWakeUpTime := Scheduler.GetNow + Duration;
    368   State := tsSleeping;
     383  FWakeUpTime := FScheduler.GetNow + Duration;
     384  FState := tsSleeping;
    369385  Yield;
    370386end;
    … …  
    387403  FExecutionTime := 0;
    388404  FTerminated := False;
    389   if CreateSuspended then
    390     State := tsSuspended;
     405  if CreateSuspended then begin
     406    FState := tsSuspended;
     407    FSuspended := True;
     408  end else FSuspended := False;
    391409  FFreeOnTerminate := True;
    392410end;
    … …  
    395413begin
    396414  FTerminated := True;
     415end;
     416
     417procedure TMicroThread.Start;
     418begin
     419  FState := tsWaiting;
    397420end;
    398421
    … …  
    405428end;
    406429
    407 procedure TMicroThread.Start;
    408 begin
    409   State := tsWaiting;
    410 end;
    411 
    412 procedure TMicroThread.Stop;
    413 begin
    414   State := tsSuspended;
     430procedure TMicroThread.Resume;
     431begin
     432  FSuspended := False;
     433  if FState = tsSuspended then
     434    FState := tsWaiting;
     435end;
     436
     437procedure TMicroThread.Suspend;
     438begin
     439  FSuspended := True;
     440  //Yield;
    415441end;
    416442
    … …  
    440466function TMicroThreadScheduler.Add(MicroThread: TMicroThread): Integer;
    441467begin
    442   Inc(LastId);
    443   MicroThread.Scheduler := Self;
    444   MicroThread.Id := LastId;
     468  Inc(FLastId);
     469  MicroThread.FScheduler := Self;
     470  MicroThread.FId := FLastId;
    445471  Result := MicroThreads.Add(MicroThread);
    446472end;
    … …  
    452478  NewMicroThread := TMicroThreadMethod.Create(False);
    453479  NewMicroThread.Method := Method;
    454   NewMicroThread.Scheduler := Self;
     480  NewMicroThread.FScheduler := Self;
    455481  Result := Add(NewMicroThread);
    456482end;
    … …  
    482508var
    483509  Executed: Integer;
     510  I: Integer;
    484511begin
    485512  FTerminated := False;
     513  for I := 0 to ThreadPool.Count - 1 do
     514    TMicroThreadSchedulerPoolThread(ThreadPool[I]).Start;
    486515  repeat
    487516    Executed := MainThreadManager.Execute(10);
    … …  
    492521
    493522procedure TMicroThreadScheduler.Stop;
    494 begin
     523var
     524  I: Integer;
     525begin
     526  for I := 0 to ThreadPool.Count - 1 do
     527    TMicroThreadSchedulerPoolThread(ThreadPool[I]).Terminate;
    495528  FTerminated := True;
    496529end;
    … …  
    499532var
    500533  I: Integer;
    501 begin
     534  CurrentTime: TDateTime;
     535begin
     536  CurrentTime := GetNow;
    502537  Result := nil;
    503538  try
    … …  
    510545     (TMicroThread(MicroThreads[RoundRobinIndex]).State <> tsWaiting) do begin
    511546      // WakeUp sleeping threads
    512       if (TMicroThread(MicroThreads[RoundRobinIndex]).State = tsSleeping) and
    513         (TMicroThread(MicroThreads[RoundRobinIndex]).FWakeupTime < Time) then
    514           TMicroThread(MicroThreads[RoundRobinIndex]).State := tsWaiting else
     547      if (TMicroThread(MicroThreads[RoundRobinIndex]).FState = tsSleeping) and
     548        (TMicroThread(MicroThreads[RoundRobinIndex]).FWakeupTime < CurrentTime) then
     549          TMicroThread(MicroThreads[RoundRobinIndex]).FState := tsWaiting else
    515550      begin
    516551        // Go to next thread
    … …  
    541576function TMicroThreadScheduler.GetThreadPoolSize: Integer;
    542577begin
    543   Result := FThreadPoolSize;
     578  Result := ThreadPool.Count;
    544579end;
    545580
    546581procedure TMicroThreadScheduler.SetThreadPoolSize(const AValue: Integer);
    547 begin
    548   FThreadPoolSize := AValue;
     582var
     583  I: Integer;
     584  NewThread: TMicroThreadSchedulerPoolThread;
     585begin
     586  if AValue > ThreadPool.Count then begin
     587    ThreadPool.Capacity := AValue;
     588    while ThreadPool.Count < AValue do begin
     589      NewThread := TMicroThreadSchedulerPoolThread.Create(True);
     590      NewThread.Manager.Scheduler := Self;
     591      ThreadPool.Add(NewThread);
     592    end;
     593  end else
     594  ThreadPool.Count := AValue;
    549595end;
    550596
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