Thanks, Jean. That's certainly a bug and easy to fix. I'll put this on
my list.
-Roger
On 6/25/14 5:41 AM, Jean Bresson wrote:
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 <[email protected]
<mailto:[email protected]>> 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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