lazarus custom CGI application memory leak.
lazarus / 38-Networking and Web Programming

----------------------------------------------------------------------
BSaidus · 2023-10-14 04:19

Hello.
Trying to learn more about CGI application on lazarus/fpc, I created
an empty Custom CGI application.
Compiled project in debug mode with heaptrc activated and execute it
without using a web server ( just in console).

The result is a memory leak
Code: [Select]Heap dump by heaptrc unit of
"C:\GNU\fpc331\projects\cgi\lib\i386-win32\cgiproject1.exe"
4272 memory blocks allocated : 269213/286576
4241 memory blocks freed     : 266968/284240
31 unfreed memory blocks : 2245
True heap size : 851968 (320 used in System startup)
True free heap : 845904
Should be : 846336
Call trace for block $01771408 size 16
  $00435FB2
  $0041...
  ...

The project tested on 2 lazarus/fpc flavours.
Lazarus version: 2.2.7 / FPC 3.2.3 ( Fixes ).
Lazarus version: 3.0RC1 / FPC 3.3.1 ( trunk).

Thanks.

----------------------------------------------------------------------
Warfley · 2023-10-14 06:47

I think there once was a discussion in this forum about this, with the
result being: yes it leaks, but that's no problem because the process
will anyway only Hadley one request before shutting down.

----------------------------------------------------------------------
BSaidus · 2023-10-14 09:48

Yep,
I found the thread.
https://forum.lazarus.freepascal.org/index.php/topic,64075.msg487175.h
tml#msg487175