samples/synchronization: fix thread b pinning (81cb80d9) · Commits · Wenxi XU / zephyr

This commit adds a brief thread b suspend while the sample sets its affinity mask. If the call to `k_thread_cpu_pin` is being made while the thread is actively running, then we get `-EINVAL` and the affinity mask is left unchanged. Signed-off-by:

Filip Kokosinski <fkokosinski@antmicro.com>

samples/synchronization/src/main.c

+9 −0

Original line number	Diff line number	Diff line
		@@ -110,7 +110,16 @@ int main(void)
		#if PIN_THREADS
		if (arch_num_cpus() > 1) {
		k_thread_cpu_pin(&thread_a_data, 0);

		/*
		* Thread b is a static thread that is spawned immediately. This means that the
		* following `k_thread_cpu_pin` call can fail with `-EINVAL` if the thread is
		* actively running. Let's suspend the thread and resume it after the affinity mask
		* is set.
		*/
		k_thread_suspend(thread_b);
		k_thread_cpu_pin(thread_b, 1);
		k_thread_resume(thread_b);
		}
		#endif

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