On 12/11/12 20:09, Pete Batard wrote:
> Hi Stefano,
>
> On 2012.11.12 12:06, Stefano Di Martino wrote:
>> is this supposed to crash, when you don't free a list?
>>
>> for(i = 0; i < 100; i++) {
>> cnt = libusb_get_device_list(NULL, &devs);
>> if (cnt < 0)
>> return (int) cnt;
>> //if (i < 99)
>> //libusb_free_device_list(devs, 1);
>> }
> Probably not.
I've been tempted to write a simple test application to do things
similar to this for a while now. Just a few for loops which call various
APIs many hundreds of times to help detect memory leaks. The only thing
which has really stopped me is that I couldn't decide if it should be an
example (so live in examples/stress_test.c) or to create a new test
directory for test source.
>
> Now, I am seeing the following issue with your code on Windows when
> running git latest, past the 32 mark:
>
> libusbx: error [set_hid_interface] program assertion failed: max USB
> interfaces reached for HID device
>
> So I guess that, at least with regards to HID on Windows, there is
> probably something that needs to be fixed (though the likelihood of
> someone making 32 concurrent calls to get_device_list is fairly low, so,
> while we definitely want to fix it ASAP, I wouldn't see it as high
> priority).
>
> I'm also having a massive déjà vu with regards to issuing a bunch of
> get_device_list() in succession, to try to produce an error. I think we
> fixed something there not so long ago, but I can't figure out when that
> occurred. Pretty sure it was for libusbx, yet the thread where that
> happened eludes me...
Are you thinking of this[1] change?
[1] -
https://github.com/libusbx/libusbx/commit/e82c677b5f10a966c89f6b58caa1ae4341260527
Regards,
Toby
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