Using MAIN_THREAD_ASYNC_EM_ASM with arguments

[sasmaster]

Hi all.
I am trying to call a function on JS main thread from a thread in C++. The function comes with several params.
Here is how I do it:

MAIN_THREAD_ASYNC_EM_ASM(TestCallFromThread(buffer, timestamp, isKeyFrame);, buffer, timestamp, isKeyFrame);

Getting:

Aborted(Assertion failed: Call args mismatch in emscripten_receive_on_main_thread_js)

If the function has a single param then no problems.

[sbc100]

Can you use the debugger (or console.log) to see what the mismatch is in that assertion between func.length and numCallArgs? What are those two values showing up as? See:

emscripten/src/library_pthread.js

Line 1031 in 0ec0351

assert(func.length == numCallArgs, 'Call args mismatch in emscripten_receive_on_main_thread_js');

Can you elaborate a little more, what are the types of buffer, timestamp, isKeyFrame that you are passing in? What link flags are you using?

Also, do you know that you are supposed to refer to the paramters as $0, $1, etc inside the MAIN_THREAD_ASYNC_EM_ASM code block?