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tests: metairq: add extra verbosity

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No functional change, just add some extra printouts and comments
to make it a little clearer the expected sequencing.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit is contained in:
Andrew Boie 2020-09-22 10:37:44 -07:00 • committed by Anas Nashif
commit e3796b95a2
1 changed files with 13 additions and 3 deletions
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16
tests/kernel/sched/metairq/src/main.c
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@ -59,7 +59,7 @@ void metairq_thread(void)
printk("give sem1\n");
k_sem_give(&coop_sem1);
printk("metairq end\n");
printk("metairq end, should switch back to co-op thread2\n");
k_sem_give(&metairq_sem);
}
@ -69,7 +69,9 @@ void coop_thread1(void)
{
int cnt1, cnt2;
printk("thread1 take sem\n");
k_sem_take(&coop_sem1, K_FOREVER);
printk("thread1 got sem\n");
/* Expect that low-priority thread has run to completion */
cnt1 = coop_cnt1;
@ -77,7 +79,7 @@ void coop_thread1(void)
cnt2 = coop_cnt2;
zassert_equal(cnt2, LOOP_CNT, "Unexpected cnt2 at start: %d", cnt2);
printk("thread1\n");
printk("thread1 increments coop_cnt1\n");
coop_cnt1++;
/* Expect that both threads have run to completion */
@ -94,7 +96,9 @@ void coop_thread2(void)
{
int cnt1, cnt2;
printk("thread2 take sem\n");
k_sem_take(&coop_sem2, K_FOREVER);
printk("thread2 got sem\n");
/* Expect that this is run first */
cnt1 = coop_cnt1;
@ -102,8 +106,14 @@ void coop_thread2(void)
cnt2 = coop_cnt2;
zassert_equal(cnt2, 0, "Unexpected cnt2 at start: %d", cnt2);
/* At some point before this loop has finished, the meta-irq thread
* will have woken up and given the semaphore which thread1 was
* waiting on. It then exits. We need to ensure that this thread
* continues to run after that instead of scheduling thread 1
* when the meta-irq exits.
*/
for (int i = 0; i < LOOP_CNT; i++) {
printk("thread2\n");
printk("thread2 loop iteration %d\n", i);
coop_cnt2++;
k_busy_wait(WAIT_MS * 1000);
}