tDBF component for Delphi and BCB / Bugs / #68 Thread-safe

#68 Thread-safe

Milestone: Win32/Linux

Status: closed-fixed

Owner: Micha Nelissen

Labels: Dbf File (25)

Priority: 5

Updated: 2015-05-21

Created: 2010-05-18

Creator: Milan Tomes

Private: No

I'm having big problems with TDBF when using it in my multi threaded application.
Here is a shortened version of call stack:

[005AEE69]{NavStreetsImporter.exe} dbf_prsdef.TExpressList.Add (Line 805, "dbf_prsdef.pas") + $7
[005AD47C]{NavStreetsImporter.exe} dbf_prssupp.TSortedCollection.AddList (Line 148, "dbf_prssupp.pas") + $10
[005C0785]{NavStreetsImporter.exe} dbf_parser.TDbfParser.FillExpressList (Line 445, "dbf_parser.pas") + $19
[005AF54F]{NavStreetsImporter.exe} dbf_prscore.TCustomExpressionParser.Create (Line 304, "dbf_prscore.pas") + $4
[005C05E0]{NavStreetsImporter.exe} dbf_parser.TDbfParser.Create (Line 365, "dbf_parser.pas") + $4
[005BFD0A]{NavStreetsImporter.exe} dbf.TDbfMasterLink.Create (Line 2956, "dbf.pas") + $9
[004494FE]{NavStreetsImporter.exe} StdCtrls.TCustomEdit.DefaultHandler (Line 2002, "StdCtrls.pas") + $6
[005BD2BA]{NavStreetsImporter.exe} dbf.TDbf.Create (Line 627, "dbf.pas") + $9
[005C3426]{NavStreetsImporter.exe} Geometry.TShapeFile.Create (Line 732, "Geometry.pas") + $9
[005D0208]{NavStreetsImporter.exe} ImportData.ImportSHP (Line 468, "ImportData.pas") + $7
[005D14A7]{NavStreetsImporter.exe} ImportData.TImportWorkerThread.DoExecute (Line 667, "ImportData.pas") + $4
[005CE13A]{NavStreetsImporter.exe} Globals.TWorkerThread.Execute (Line 1187, "Globals.pas") + $5
[004494FE]{NavStreetsImporter.exe} StdCtrls.TCustomEdit.DefaultHandler (Line 2002, "StdCtrls.pas") + $6
[0042D0AE]{NavStreetsImporter.exe} Classes.ThreadProc (Line 9372, "classes.pas") + $5
[004494FE]{NavStreetsImporter.exe} StdCtrls.TCustomEdit.DefaultHandler (Line 2002, "StdCtrls.pas") + $6
[00403001]{NavStreetsImporter.exe} System.@FreeMem (Line 2466, "system.pas") + $0
[00404D48]{NavStreetsImporter.exe} System.ThreadWrapper (Line 11554, "system.pas") + $0
[004494FE]{NavStreetsImporter.exe} StdCtrls.TCustomEdit.DefaultHandler (Line 2002, "StdCtrls.pas") + $6

The exception occurs when I'm trying to create new instance of TDBF and it happens only sometime so I guess it's because TDBF is not thread safe. Now I've removed support for MasterLink (as you can read from stack list, exception is raised when TDbfParser creation is in progress) and because I don't use Filter so TDbfParser is never used. I hope it will help, but I'll appreciate if this bug will be fixed ASAP.

I'm using Delphi 7 Professional.

Related

Discussion

Micha Nelissen - 2015-05-21

Hi Paul,

I have given 'Developers' permission to update tickets. Does this allow
you to update the status?

Thanks

On 20-05-15 18:38, Paul Baker wrote:

This is fixed in revision 407.
I don't think I have access to change the status of this bug to fixed.

[bugs:#68] http://sourceforge.net/p/tdbf/bugs/68 Thread-safe

Status: open
Group:
Labels: Dbf File
Created: Tue May 18, 2010 12:13 PM UTC by Milan Tomes
Last Updated: Tue May 18, 2010 12:13 PM UTC
Owner: Micha Nelissen

I'm having big problems with TDBF when using it in my multi threaded
application.
Here is a shortened version of call stack:

[005AEE69]{NavStreetsImporter.exe} dbf_prsdef.TExpressList.Add (Line
805, "dbf_prsdef.pas") + $7
[005AD47C]{NavStreetsImporter.exe} dbf_prssupp.TSortedCollection.AddList
(Line 148, "dbf_prssupp.pas") + $10
[005C0785]{NavStreetsImporter.exe} dbf_parser.TDbfParser.FillExpressList
(Line 445, "dbf_parser.pas") + $19
[005AF54F]{NavStreetsImporter.exe}
dbf_prscore.TCustomExpressionParser.Create (Line 304, "dbf_prscore.pas")
+ $4
[005C05E0]{NavStreetsImporter.exe} dbf_parser.TDbfParser.Create (Line
365, "dbf_parser.pas") + $4
[005BFD0A]{NavStreetsImporter.exe} dbf.TDbfMasterLink.Create (Line 2956,
"dbf.pas") + $9
[004494FE]{NavStreetsImporter.exe} StdCtrls.TCustomEdit.DefaultHandler
(Line 2002, "StdCtrls.pas") + $6
[005BD2BA]{NavStreetsImporter.exe} dbf.TDbf.Create (Line 627, "dbf.pas")
+ $9
[005C3426]{NavStreetsImporter.exe} Geometry.TShapeFile.Create (Line 732,
"Geometry.pas") + $9
[005D0208]{NavStreetsImporter.exe} ImportData.ImportSHP (Line 468,
"ImportData.pas") + $7
[005D14A7]{NavStreetsImporter.exe}
ImportData.TImportWorkerThread.DoExecute (Line 667, "ImportData.pas") + $4
[005CE13A]{NavStreetsImporter.exe} Globals.TWorkerThread.Execute (Line
1187, "Globals.pas") + $5
[004494FE]{NavStreetsImporter.exe} StdCtrls.TCustomEdit.DefaultHandler
(Line 2002, "StdCtrls.pas") + $6
[0042D0AE]{NavStreetsImporter.exe} Classes.ThreadProc (Line 9372,
"classes.pas") + $5
[004494FE]{NavStreetsImporter.exe} StdCtrls.TCustomEdit.DefaultHandler
(Line 2002, "StdCtrls.pas") + $6
[00403001]{NavStreetsImporter.exe} System.@FreeMem (Line 2466,
"system.pas") + $0
[00404D48]{NavStreetsImporter.exe} System.ThreadWrapper (Line 11554,
"system.pas") + $0
[004494FE]{NavStreetsImporter.exe} StdCtrls.TCustomEdit.DefaultHandler
(Line 2002, "StdCtrls.pas") + $6

The exception occurs when I'm trying to create new instance of TDBF and
it happens only sometime so I guess it's because TDBF is not thread
safe. Now I've removed support for MasterLink (as you can read from
stack list, exception is raised when TDbfParser creation is in progress)
and because I don't use Filter so TDbfParser is never used. I hope it
will help, but I'll appreciate if this bug will be fixed ASAP.

I'm using Delphi 7 Professional.

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https://sourceforge.net/p/tdbf/bugs/68/
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Related

Bugs: ~~#68~~

If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
- Paul Baker - 2015-05-21
  
  Hi Micha,
  
  Yes. I already had permission to create. Now I have permission to edit
  too. I marked bugs 58 and 68 closed-fixed.
  
  On Thu, May 21, 2015 at 4:15 AM, Micha Nelissen mdv@users.sf.net wrote:
  
  Hi Paul,
  
  I have given 'Developers' permission to update tickets. Does this allow
  you to update the status?
  
  Thanks
  
  On 20-05-15 18:38, Paul Baker wrote:
  
  This is fixed in revision 407.
  I don't think I have access to change the status of this bug to fixed.
  
  [bugs:#68] http://sourceforge.net/p/tdbf/bugs/68
  http://sourceforge.net/p/tdbf/bugs/68
  http://sourceforge.net/p/tdbf/bugs/68 Thread-safe
  
  Status: open
  Group:
  Labels: Dbf File
  Created: Tue May 18, 2010 12:13 PM UTC by Milan Tomes
  Last Updated: Tue May 18, 2010 12:13 PM UTC
  Owner: Micha Nelissen
  
  I'm having big problems with TDBF when using it in my multi threaded
  application.
  Here is a shortened version of call stack:
  
  [005AEE69]{NavStreetsImporter.exe} dbf_prsdef.TExpressList.Add (Line
  805, "dbf_prsdef.pas") + $7
  [005AD47C]{NavStreetsImporter.exe} dbf_prssupp.TSortedCollection.AddList
  (Line 148, "dbf_prssupp.pas") + $10
  [005C0785]{NavStreetsImporter.exe} dbf_parser.TDbfParser.FillExpressList
  (Line 445, "dbf_parser.pas") + $19
  [005AF54F]{NavStreetsImporter.exe}
  dbf_prscore.TCustomExpressionParser.Create (Line 304, "dbf_prscore.pas")
  + $4
  [005C05E0]{NavStreetsImporter.exe} dbf_parser.TDbfParser.Create (Line
  365, "dbf_parser.pas") + $4
  [005BFD0A]{NavStreetsImporter.exe} dbf.TDbfMasterLink.Create (Line 2956,
  "dbf.pas") + $9
  [004494FE]{NavStreetsImporter.exe} StdCtrls.TCustomEdit.DefaultHandler
  (Line 2002, "StdCtrls.pas") + $6
  [005BD2BA]{NavStreetsImporter.exe} dbf.TDbf.Create (Line 627, "dbf.pas")
  + $9
  [005C3426]{NavStreetsImporter.exe} Geometry.TShapeFile.Create (Line 732,
  "Geometry.pas") + $9
  [005D0208]{NavStreetsImporter.exe} ImportData.ImportSHP (Line 468,
  "ImportData.pas") + $7
  [005D14A7]{NavStreetsImporter.exe}
  ImportData.TImportWorkerThread.DoExecute (Line 667, "ImportData.pas") + $4
  [005CE13A]{NavStreetsImporter.exe} Globals.TWorkerThread.Execute (Line
  1187, "Globals.pas") + $5
  [004494FE]{NavStreetsImporter.exe} StdCtrls.TCustomEdit.DefaultHandler
  (Line 2002, "StdCtrls.pas") + $6
  [0042D0AE]{NavStreetsImporter.exe} Classes.ThreadProc (Line 9372,
  "classes.pas") + $5
  [004494FE]{NavStreetsImporter.exe} StdCtrls.TCustomEdit.DefaultHandler
  (Line 2002, "StdCtrls.pas") + $6
  [00403001]{NavStreetsImporter.exe} System.@FreeMem (Line 2466,
  "system.pas") + $0
  [00404D48]{NavStreetsImporter.exe} System.ThreadWrapper (Line 11554,
  "system.pas") + $0
  [004494FE]{NavStreetsImporter.exe} StdCtrls.TCustomEdit.DefaultHandler
  (Line 2002, "StdCtrls.pas") + $6
  
  The exception occurs when I'm trying to create new instance of TDBF and
  it happens only sometime so I guess it's because TDBF is not thread
  safe. Now I've removed support for MasterLink (as you can read from
  stack list, exception is raised when TDbfParser creation is in progress)
  and because I don't use Filter so TDbfParser is never used. I hope it
  will help, but I'll appreciate if this bug will be fixed ASAP.
  
  I'm using Delphi 7 Professional.
  
  Sent from sourceforge.net because you indicated interest in
  https://sourceforge.net/p/tdbf/bugs/68/
  https://sourceforge.net/p/tdbf/bugs/68
  
  To unsubscribe from further messages, please visit
  https://sourceforge.net/auth/subscriptions/
  https://sourceforge.net/auth/subscriptions
  
  [bugs:#68] http://sourceforge.net/p/tdbf/bugs/68 Thread-safe*
  
  Status: open
  Group:
  Labels: Dbf File
  Created: Tue May 18, 2010 12:13 PM UTC by Milan Tomes
  Last Updated: Wed May 20, 2015 04:37 PM UTC
  Owner: Micha Nelissen
  
  I'm having big problems with TDBF when using it in my multi threaded
  application.
  Here is a shortened version of call stack:
  
  [005AEE69]{NavStreetsImporter.exe} dbf_prsdef.TExpressList.Add (Line 805,
  "dbf_prsdef.pas") + $7
  [005AD47C]{NavStreetsImporter.exe} dbf_prssupp.TSortedCollection.AddList
  (Line 148, "dbf_prssupp.pas") + $10
  [005C0785]{NavStreetsImporter.exe} dbf_parser.TDbfParser.FillExpressList
  (Line 445, "dbf_parser.pas") + $19
  [005AF54F]{NavStreetsImporter.exe}
  dbf_prscore.TCustomExpressionParser.Create (Line 304, "dbf_prscore.pas") +
  $4
  [005C05E0]{NavStreetsImporter.exe} dbf_parser.TDbfParser.Create (Line 365,
  "dbf_parser.pas") + $4
  [005BFD0A]{NavStreetsImporter.exe} dbf.TDbfMasterLink.Create (Line 2956,
  "dbf.pas") + $9
  [004494FE]{NavStreetsImporter.exe} StdCtrls.TCustomEdit.DefaultHandler
  (Line 2002, "StdCtrls.pas") + $6
  [005BD2BA]{NavStreetsImporter.exe} dbf.TDbf.Create (Line 627, "dbf.pas") +
  $9
  [005C3426]{NavStreetsImporter.exe} Geometry.TShapeFile.Create (Line 732,
  "Geometry.pas") + $9
  [005D0208]{NavStreetsImporter.exe} ImportData.ImportSHP (Line 468,
  "ImportData.pas") + $7
  [005D14A7]{NavStreetsImporter.exe}
  ImportData.TImportWorkerThread.DoExecute (Line 667, "ImportData.pas") + $4
  [005CE13A]{NavStreetsImporter.exe} Globals.TWorkerThread.Execute (Line
  1187, "Globals.pas") + $5
  [004494FE]{NavStreetsImporter.exe} StdCtrls.TCustomEdit.DefaultHandler
  (Line 2002, "StdCtrls.pas") + $6
  [0042D0AE]{NavStreetsImporter.exe} Classes.ThreadProc (Line 9372,
  "classes.pas") + $5
  [004494FE]{NavStreetsImporter.exe} StdCtrls.TCustomEdit.DefaultHandler
  (Line 2002, "StdCtrls.pas") + $6
  [00403001]{NavStreetsImporter.exe} System.@FreeMem (Line 2466,
  "system.pas") + $0
  [00404D48]{NavStreetsImporter.exe} System.ThreadWrapper (Line 11554,
  "system.pas") + $0
  [004494FE]{NavStreetsImporter.exe} StdCtrls.TCustomEdit.DefaultHandler
  (Line 2002, "StdCtrls.pas") + $6
  
  The exception occurs when I'm trying to create new instance of TDBF and it
  happens only sometime so I guess it's because TDBF is not thread safe. Now
  I've removed support for MasterLink (as you can read from stack list,
  exception is raised when TDbfParser creation is in progress) and because I
  don't use Filter so TDbfParser is never used. I hope it will help, but I'll
  appreciate if this bug will be fixed ASAP.
  
  I'm using Delphi 7 Professional.
  
  Sent from sourceforge.net because you indicated interest in
  https://sourceforge.net/p/tdbf/bugs/68/
  
  To unsubscribe from further messages, please visit
  https://sourceforge.net/auth/subscriptions/
  
  Related
  
  Bugs: ~~#68~~
  
  alternate
  
  If you would like to refer to this comment somewhere else in this project, copy and paste the following link:

Paul Baker - 2015-05-21

status: open --> closed-fixed

Group: --> Win32/Linux
This is fixed in revision 407.

Last edit: Paul Baker 2015-05-21
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:

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