Declaring suspended threads

[Gambanishu]

Hi!

I'm trying to write a small library for myself. It would need a thread to do some background stuff. In my library I would have a stuffInit() function to set up things, but I don't want much to happen before calling this function (it it will be called at all...) I don't want the thread to start before I call stuffInit(). I would like to declare it suspended. My problem is the following:

void stuffThread() {
}

K_THREAD_DEFINE(stuffThreadId, 512, stuffThread, NULL, NULL, NULL, 3, 0, 200);

k_thread_suspend(stuffThreadId);

void initStuff() {
    k_thread_resume(stuffThreadId);
}

I can't do that, because k_thread_suspend(stuffThreadId); can't be just lying there outside of the function.

void stuffThread() {
}

void initStuff() {
    K_THREAD_DEFINE(stuffThreadId, 512, stuffThread, NULL, NULL, NULL, 3, 0, 0);
}

I can't do that wither, because I can't define the thread in a function.

Is there a way to declare it suspended, or in a way that it doesn't start doing stuff until I say so?

Thanks!

[Jørgen Holmefjord]

Hi,

I think the best option would be to use a semaphore with K_FOREVER wait in the start of the thread and give the semaphore whenever the thread should start. You can see an example of this in the peripheral_uart sample, where the semaphore is defined, taken and given.

Best regards,
Jørgen