Just to make a few things clear: 1. I used to have a CPP thread which crashed whenever trying to create the thread. I removed it and then my WASM code worked perfectly. 2. (Not sure if relevant) What my code does is basically- Receive an image from Webcam, copy it to a JS arrayBuffer, call a callback to my CPP function, modify the image in cpp, return the image, and paint it on a canvas. With some cool AI in the process with OnnxRuntime and OpenCV compiled in ;) 3. I do want to use CPP threads, so to solve 1, I recompiled everything with -pthread, and then everything successfully recompiled. Also some worker.js was created I am not sure what to do with... 4. After I thought I am finished, somehow the project forgot what SharedArrayBuffer is, which I guess causes all the other errors as well. ב-יום רביעי, 19 ביולי 2023 בשעה 12:45:53 UTC+3, Ronny Nissengold כתב/ה:
> Thank you all for your support. > I was able to successfully compile my project with pthread enabled. > Now I face a new problem, I used Module._malloc to pass an image from a > webcam into my cpp function > For that I used the following linker > flags: add_link_options(-sINITIAL_MEMORY=800MB -sTOTAL_STACK=80MB -O3 -s > -sEXPORTED_FUNCTIONS=['_malloc','_free'] -sASSERTIONS -pthread) > > Now I get the following error in my console: > > Uncaught ReferenceError: SharedArrayBuffer is not defined > at blink_landmark_detector_sample.js:1:9999 > > (index):11 Uncaught TypeError: Module._malloc is not a function > at _arrayToHeap ((index):11:24) > at HTMLVideoElement.computeFrame ((index):40:22) > > Any idea what happened? > Thanks! > Ronny > ב-יום שלישי, 18 ביולי 2023 בשעה 16:06:32 UTC+3, tli...@google.com כתב/ה: > >> If you look at your CMake script, you should see that it adds -flto at >> some point. That’s the option you’ll want to remove. You may be able to >> remove it from your CMakeCache.txt file and recompile without running cmake >> again. >> >> On Tue, Jul 18, 2023 at 01:33 Ronny Nissengold <ronn...@gmail.com> wrote: >> >>> Thank you for your response. How do I turn off LTO? >>> >>> ב-יום שני, 17 ביולי 2023 בשעה 18:51:26 UTC+3, tli...@google.com כתב/ה: >>> >>>> This error means that some code wasn't compiled with -pthread and >>>> therefore is not safe to execute in a multithreaded environment. Normally >>>> the error message tells you which object is the culprit, but it's less >>>> helpful here because you're using LTO. Does the problem persist if you >>>> turn >>>> off LTO? >>>> >>>> On Mon, Jul 17, 2023 at 8:49 AM Ronny Nissengold <ronn...@gmail.com> >>>> wrote: >>>> >>>>> Hi all! >>>>> I am trying to use multithreading in my project. >>>>> I got this error when passing -pthread both to compiler and linker. >>>>> I am using cmake. >>>>> Any idea how to overcome this? >>>>> Thanks! >>>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "emscripten-discuss" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to emscripten-disc...@googlegroups.com. >>>>> To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/emscripten-discuss/acbc873e-078a-4082-8761-6c0322246170n%40googlegroups.com >>>>> >>>>> <https://groups.google.com/d/msgid/emscripten-discuss/acbc873e-078a-4082-8761-6c0322246170n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> >>>> -- >>> You received this message because you are subscribed to the Google >>> Groups "emscripten-discuss" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to emscripten-disc...@googlegroups.com. >>> >> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/emscripten-discuss/3c0a9c3c-9e56-41e4-9211-38afba0fc2c2n%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/emscripten-discuss/3c0a9c3c-9e56-41e4-9211-38afba0fc2c2n%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- You received this message because you are subscribed to the Google Groups "emscripten-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to emscripten-discuss+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/emscripten-discuss/a82fa172-4875-4b42-a1fb-ed7237ca6d9bn%40googlegroups.com.
