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{ $Id: processdebugger.pp 58679 2018-08-05 12:26:21Z martin $ }
{ ------------------------------------------------
ProcessDebugger.pp - Debugger class which only
executes a target
------------------------------------------------
@created(Sun Nov 27st WET 2005)
@lastmod($Date: 2018-08-05 14:26:21 +0200 (So, 05 Aug 2018) $)
@author(Marc Weustink <marc@@dommelstein.net>)
This unit contains the process debugger class. It simply creates a process.
***************************************************************************
* *
* This source is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This code is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* General Public License for more details. *
* *
* A copy of the GNU General Public License is available on the World *
* Wide Web at <http://www.gnu.org/copyleft/gpl.html>. You can also *
* obtain it by writing to the Free Software Foundation, *
* Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1335, USA. *
* *
***************************************************************************
}
unit ProcessDebugger;
{$mode objfpc}
{$H+}
interface
uses
Classes, SysUtils, FileUtil, UTF8Process, LazFileUtils, DbgIntfDebuggerBase,
Process, Debugger, LCLProc, BaseDebugManager, Dialogs, ProcessList;
type
{ TProcessDebugger }
TProcessDebugger = class(TDebugger)
private
FProcess: TProcessUTF8;
procedure ProcessDestroyed(Sender: TObject);
function ProcessEnvironment(const {%H-}AVariable: String; const {%H-}ASet: Boolean): Boolean;
function ProcessRun: Boolean;
function ProcessStop: Boolean;
protected
function GetSupportedCommands: TDBGCommands; override;
function RequestCommand(const ACommand: TDBGCommand; const AParams: array of const;
const {%H-}ACallback: TMethod): Boolean; override;
public
class function Caption: String; override;
class function NeedsExePath: boolean; override;
published
end;
implementation
type
{ TDBGProcess }
TDBGProcess = class(TProcessUTF8)
private
FOnDestroy: TNotifyEvent;
protected
public
destructor Destroy; override;
property OnDestroy: TNotifyEvent read FOnDestroy write FOnDestroy;
end;
{ TDBGProcess }
destructor TDBGProcess.Destroy;
begin
if Assigned(FOnDestroy) then FOnDestroy(Self);
inherited Destroy;
end;
{ TProcessDebugger }
procedure TProcessDebugger.ProcessDestroyed(Sender: TObject);
begin
FProcess := nil;
if State <> dsIdle then
SetState(dsStop);
end;
function TProcessDebugger.ProcessEnvironment(const AVariable: String; const ASet: Boolean): Boolean;
begin
// We don't have to do anything, we'll use the Environment when running
Result := True;
end;
function TProcessDebugger.ProcessRun: Boolean;
begin
DebugLn('PR: %s %s', [FileName, Arguments]);
if FProcess <> nil
then begin
MessageDlg('Debugger', Format('There is already a process running: %s', [FProcess.{%H-}CommandLine]), mtError, [mbOK], 0);
Result := False;
Exit;
end;
SetState(dsInit);
FProcess := TDBGProcess.Create(nil);
try
TDBGProcess(FProcess).OnDestroy := @ProcessDestroyed;
GetDefaultProcessList.Add(FProcess);
FProcess.Executable := FileName;
SplitCmdLineParams(Arguments,FProcess.Parameters);
FProcess.CurrentDirectory := WorkingDir;
FProcess.Environment.Assign(Environment);
if ShowConsole
then FProcess.Options:= [poNewConsole]
else FProcess.Options:= [poNoConsole];
FProcess.ShowWindow := swoShowNormal;
FProcess.Execute;
except
on E: exception do begin
MessageDlg('Debugger', Format('Exception while creating process: %s', [E.Message]), mtError, [mbOK], 0);
Result := False;
SetState(dsIdle);
Exit;
end;
end;
SetState(dsRun);
Result := True;
end;
function TProcessDebugger.ProcessStop: Boolean;
begin
FProcess.Terminate(0);
// Do not free the process, the processlist will free it
// FreeAndNil(FProcess);
// SetState(dsStop);
Result := True;
end;
function TProcessDebugger.GetSupportedCommands: TDBGCommands;
begin
Result := [dcRun, dcStop, dcEnvironment]
end;
function TProcessDebugger.RequestCommand(const ACommand: TDBGCommand;
const AParams: array of const; const ACallback: TMethod): Boolean;
begin
case ACommand of
dcRun: Result := ProcessRun;
dcStop: Result := ProcessStop;
dcEnvironment: Result := ProcessEnvironment(String(APArams[0].VAnsiString), AParams[1].VBoolean);
else Result := False;
end;
end;
class function TProcessDebugger.Caption: String;
begin
Result := '(none)';
end;
class function TProcessDebugger.NeedsExePath: boolean;
begin
Result := false; // no need to have a valid exe path for the process debugger
end;
initialization
RegisterDebugger(TProcessDebugger);
end.
|
