High CPU usage for thread function `prThreadThumbnailFileDatasExtractionFunc`

[ilovexyz]

Describe the bug
if USE_THUMBNAILS macro is defined, thread function prThreadThumbnailFileDatasExtractionFunc consumes too much cpu.

To Reproduce
Steps to reproduce the behavior:

1. using the latest version "v0.6.5"
2. define USE_THUMBNAILS
3. Open a modal dialog
4. the cpu usage is high
5. close the dialog, the cpu usage goes to 0%

Posible reason
When i debug into the source code, i found the thread function prThreadThumbnailFileDatasExtractionFunc is running continuously if prThumbnailFileDatasToGet is empty.

Suggested solution?
sleep for a while if prThumbnailFileDatasToGet is empty.

while(prIsWorking)
{
    if (!prThumbnailFileDatasToGet.empty())
    {...}
    // sleep for a while
    else
    {
        using namespace std::chrono_literals;
        std::this_thread::sleep_for(1ms);    
    }
}

after adding sleep, the cpu usage goes to 0% again. But i am not sure is this a correct solution.

[aiekick]

Hello,

Thanks for thz feedback.

Ok make sende, will check that Hen i have time. Maybe not before saturday soery

Btw what is you cpu, memory amount and os please ?

[ilovexyz]

Hello,

Thanks for thz feedback.

Ok make sende, will check that Hen i have time. Maybe not before saturday soery

Btw what is you cpu, memory amount and os please ?

My CPU is Intel Core i9-9880H, memory 48G, os is windows 10 enterprise with version 21H2.

if the dialog is shown, the cpu goes from 0% to ~12% suddenly, and keep that value as long as the dialog is shown, which cause the cpu fan spinning

[aiekick]

Yes maybe a sleep xan be a solution but can add a delay when the lidt contain again a file to treat

But we can add a sleep of 500 m.

Could be sufficient i guess

[aiekick]

fixed :)