Re: [Libusb-devel] [OSX] memory leak in libusb_enum_devices

[Vitali L. <vl...@gm...>]

No difference - still leaking 36 bytes

On Tue, Jul 12, 2011 at 7:04 AM, Nathan Hjelm <hj...@me...> wrote:
> Odd. I wonder if there is a leak inside IOCreatePlugInInterfaceForService or IODestoryPluginInterface. Can you see if the leak still exists if you change:
> IODestroyPlugInInterface (plugInInterface);
> to
> (*plugInInterface)->Release(plugInInterface);
>
> -Nathan
>
> On Jul 12, 2011, at 7:37 AM, Vitali Lovich wrote:
>
>> Running attached sample code on OSX leads to a memory leak (activity
>> manager is reporting ~36K leak on every call).   Does not happen in
>> Linux (otherwise I would have used valgrind to find this in 2
>> seconds). Does anyone have any ideas?  I've had no luck tracking it
>> down.  Instruments isn't showing any leaks, but the heap allocation
>> seems to point the finger at IOCreatePlugInInterfaceForService leaking
>> CFString (although this is the first time I've touched Instruments, so
>> I could be using it wrong).
>>
>> Using libusb 9ee064979ad5dfa1b0e2ca7d8dc8763eb9cf5618
>>
>> Same sample code as the port leak (just pass mem as the first argument
>> instead of port).
>>
>> Sample makefile provided below
>>
>> Thanks,
>> Vitali
>>
>> LIBUSB_INC ?= -I/usr/include
>> LIBUSB_LIB ?= -L/usr/lib
>>
>> #I386 ?= -arch i386
>>
>> CC ?= gcc
>> CFLAGS += $(LIBUSB_INC) -std=c99 $(I386) -O0 -g
>> LDFLAGS += $(LIBUSB_LIB) -lusb-1.0 $(I386)
>>
>> .PHONY: all clean
>>
>> all: test
>>
>> clean:
>>       -rm -f test.o
>>       -rm -f portleak.o
>>       -rm -f test
>>
>> test.o: test.c
>>       $(CC) $(CFLAGS) -c test.c -o test.o
>>
>> test: test.o
>>       $(CC) $(LDFLAGS) test.o -o test
>> <test.c>------------------------------------------------------------------------------
>> All of the data generated in your IT infrastructure is seriously valuable.
>> Why? It contains a definitive record of application performance, security
>> threats, fraudulent activity, and more. Splunk takes this data and makes
>> sense of it. IT sense. And common sense.
>> http://p.sf.net/sfu/splunk-d2d-c2_______________________________________________
>> Libusb-devel mailing list
>> Lib...@li...
>> https://lists.sourceforge.net/lists/listinfo/libusb-devel
>
>