Topic about possible Memory leak in ZDbcIntfs

[marsupilami]

While cleaning up the Forums from Spam I accidetally deleted a new topic about possible memory leaks in ZDBCIntfs. Please recreate the topic. It might be possible that you will have to reregister your user name, if you didn't post any topics in the past.

Best regards,

Jan

[anfm]

https://sourceforge.net/p/zeoslib/code- ... cIntfs.pas

ZDbcIntfs-garbage.png

ZDbcIntfs-garbage-alt.png

[aehimself]

It won't leak, it's an interface:

private
FDriversCS: TCriticalSection; // thread-safety for FDrivers collection. Not the drivers themselves!
FLogCS: TCriticalSection; // thread-safety for logging listeners
FDrivers: IZCollection;
FLoggingListeners: IZCollection;
FGarbageCollector: IZCollection;

[anfm]

I have this erros on Lazarus 2.2.0

zeos-ml.png

heaptrclog-zeos.txt

[aehimself]

The log points to the unit initialization of ZDbcIntFs, which looks like this:

Code: Select all

initialization
  DriverManager := TZDriverManager.Create;
  GlobalCriticalSection := TCriticalSection.Create;
finalization
  DriverManager := nil;
  FreeAndNil(GlobalCriticalSection);

These variables are global, defined like:

Code: Select all

var
  /// <summary>The common driver manager object.</summary>
  DriverManager: IZDriverManager;
  /// <summary>The global critical section.</summary>
  GlobalCriticalSection: TCriticalSection;

Finalization correctly seems to free up these objects. Is it possible that your app exits ungracefully (or by using Halt) so uninitializations aren't executed?