modified file on the mtp responder side, but the PC can not refresh at the same time.(maybe I solved this problem by change the code)

[woshizhy]

for example:
1）create a file on mtp responder：
echo hello1 > hello.txt

2）watch the file on PC，it's good to find the hello.txt and it's content is : hello1.

3）append some content to the hello.txt file on mtp responder：
echo hello2 >> hello.txt

4）watch the file on PC，but the content is keep to : hello1.

5）append some content to the hello.txt file on mtp responder：
echo hello3 >> hello.txt

6）watch the file on PC，and the content is change to : hello. hello2.

....

can you verification this problem please?

Thank you, good life to you.

---

Hello
maybe I sovled this problem by change the source code(just add one line):

the file: src/mtp_properties.c

and the function:
int build_objectproplist_dataset(mtp_ctx * ctx, void * buffer, int maxsize,fs_entry * entry, uint32_t handle,uint32_t format_id, uint32_t prop_code, uint32_t prop_group_code, uint32_t depth)
{
...

if(path)
{
	ret = stat64(path, &entrystat);
}

if(ret)
{
	if(path)
		free(path);
	return 0;
}

++ /* update the file size infomation */
++ entry->size = entrystat.st_size;

...
}

Are you agree?

Thanks， wish you a happy life.

[jfdelnero]

Hello,

Thanks for the patch, this appears fine.

Have you successfully tried it ? If so, please make a pull-request.

Thanks !

(Just for record, which client operating system have you tried ?)

[woshizhy]

Hello.

First, thank you for your reply.

The client operating system I have : win7, win10, and my android-10 phone.

And I passed the verification on win7 and win10, but the android-10 phone is not successfully.

[woshizhy]

Hello.

And I tried the following experiments：
using another android phone as the MTP responder to connect my android-10 phone,
and whether it's creating a new file or modifying a file on the MTP responder, my android-10 do not update.
(Note: if using your uMTP-Responder for the experiment, when I created a new file or modify a file at mtp responder side, it always take the initiative to report related events to the MTP Initiator. And I know that situation by open the debug log.)

So, I believe that the android os system support for MTP Initiator is not perfect, and it's not about your MTP responder.

Do you agree?

Thanks, wish you a happy life.

[jfdelnero]

Yes i agree. I know that some MTP Initiators have some issues with the events coming from the device.

Thanks for the PR/patch and tests, this is now in the sources !