Hello,
For what it worth, I noticed in my application using PortMIDI (OSX) that the
file /Users/<me>/Library/Preferences/com.apple.java.util.prefs.plist
is open at calling "Pm_Initialize" (I guess in order to get the default devices
etc.) but is never closed, even after "Pm_Terminate"
As a consequence the application retains this file open and fails after too
many Intialize/Terminate calls (which I often tend to do to refresh the
devices).
Jean
Le 24 juin 2014 à 16:56, Roger Dannenberg <r...@cs.cmu.edu> a écrit :
> Hi Andreas,
> Thanks for letting me know. I don't consider not freeing everything
> allocated to be a "memory leak" or an error, but if PortMidi allocates new
> memory every time you call Pm_Initialize(), that's a (minor) problem.
> A quick check indicates Pm_Terminate is freeing device descriptors, but
> there may be some other (maybe system-specific) memory that's not freed. I'll
> take a look.
> Yours,
> Roger
>
> On 6/24/14 10:17 AM, Andreas Eriksson wrote:
>> Hi.
>>
>> I was playing around with PortMidi earlier and noticed a memory leak. The
>> memory leak can be reproduced with this simple example program:
>>
>> #include <portmidi.h>
>> int main(void) {
>> Pm_Initialize()
>> Pm_Terminate()
>> return 0;
>> }
>>
>> Running this with AddressSanitizer (a memory error checker) reports that
>> some memory is still allocated when the program exists. The number of
>> objects that are still allocated is the same as the number of midi devices
>> found by portmidi. So it would seem that portmidi allocates something for
>> each device when Pm_Initialize() is called, but doesn't free it when
>> Pm_Terminate() is called. The platform I noticed the problem on was Linux
>> with the ALSA API.
>>
>> I've decided against using PortMidi for my projects so I'm not going to
>> spend any more time investigating this problem, but I figured I should at
>> least let you know that it exists.
>>
>>
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