我在虚拟机的 Windows Vista Ultimate 上的 IIS7 上有一个示例 ISAPI 模块主机。根据IIS 7.0 版本和 Windows,Windows Vista Ultimate 的同时请求执行限制为 10。我编写了一个示例应用程序来测试 IIS7 并发请求执行限制:
procedure TForm1.Button1Click(Sender: TObject);
const c_Max = 20;
var P: TProc<string>;
o: TThread;
i: integer;
A: array of TThread;
begin
P :=
procedure(aValue: string)
begin
Memo1.Lines.Add(aValue);
end;
SetLength(A, c_Max);
for i := Low(A) to High(A) do begin
o := TMyThread.Create(P, edHostName.Text, Format('test%d', [i + 1]), True);
o.FreeOnTerminate := True;
A[i] := o;
end;
for o in A do
o.Start;
end;
constructor TMyThread.Create(const aMethod: TProc<string>; const aHostName,
aValue: string; const aCreateSuspended: boolean);
begin
inherited Create(aCreateSuspended);
FMethod := aMethod;
FHostName := aHostName;
FValue := aValue;
end;
procedure TMyThread.Execute;
var C: TSQLConnection;
o: TServerMethods1Client;
S: string;
begin
C := TSQLConnection.Create(nil);
C.DriverName := 'DataSnap';
C.LoginPrompt := False;
with C.Params do begin
Clear;
Values[TDBXPropertyNames.DriverUnit] := 'Data.DBXDataSnap';
Values[TDBXPropertyNames.HostName] := FHostName;
Values[TDBXPropertyNames.Port] := IntToStr(80);
Values[TDBXPropertyNames.CommunicationProtocol] := 'http';
Values[TDBXPropertyNames.URLPath] := 'MyISAPI/MyISAPI.dll';
end;
S := Format('%d=', [ThreadID]);
try
try
C.Open;
o := TServerMethods1Client.Create(C.DBXConnection);
try
S := S.Format('%s%s', [S, o.EchoString(FValue)]);
finally
o.Free;
end;
except
on E: Exception do
S := S.Format('%s%s', [S, E.Message]);
end;
finally
Synchronize(
procedure
begin
FMethod(S);
end
);
C.Free;
end;
end;
当我单击 Button1 时,Memo1 显示 20 行字符串(ThreadID=EchoString 的结果),即使我将常量变量 c_Max 更改为 500,我仍然无法获得任何字符串行(ThreadID=Exception 消息)显示备忘录1。我的问题是如何测试 IIS7 同时请求执行限制?