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1829 :: memory leak in os.getAppFilename()

• singularity (orginal) [2015-11-26T21:01:57+01:00] view original

  It looks like there's a memory leak in getAppFilename(). When running the code below, memory usage continuously grows and finally results in a "out of memory" error on my system.

  
  import os
  
  while true:
    var s = getAppFilename()
    sleep(1)
  Run

  I stumbled over it while using the logging lib, where getAppFilename() is always called in proc substituteLog().

  I am using the devel branch under windows with gcc and with --threads:on and --tlsEmulation:on switches.

  Update: With boehm gc memory usage stays constant.

  
  Nim Compiler Version 0.12.1 (2015-11-25) [Windows: amd64]
  Copyright (c) 2006-2015 by Andreas Rumpf
  
  git hash: eaed36092c5caa5854dcdb4bb205a3c1050e323c
  active boot switches: -d:release
  Run

  Before posting an issue I want to make sure that this is not something related to my environment.

  Update: With boehm gc memory usage stays constant.

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• zielmicha (orginal) [2015-11-26T21:15:10+01:00] view original

  when defined(windows):
    when useWinUnicode:
      var buf = cast[WideCString](alloc(256*2))
      var len = getModuleFileNameW(0, buf, 256)
      result = buf$len
    else:
      result = newString(256)
      var len = getModuleFileNameA(0, result, 256)
      setlen(result, int(len))
  Run

  If useWinUnicode is true this indeed seems to leak.

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• Araq (orginal) [2015-11-26T21:20:46+01:00] view original

  Thanks. Fixed.

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• singularity (orginal) [2015-11-26T21:34:30+01:00] view original

  Great! Thanks a lot.

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