[EXTERNAL] [jdk17] RFR: 8269865: Async UL needs to handle ERANGE on exceeding SEM_VALUE_MAX [v3]

[David Holmes]

On 7/07/2021 6:03 pm, Liu, Xin wrote:
> I had a gtest. I think it can trigger overflow issue on different
> platforms.  Since we don't know the cap, we have to increment it one by
> one. I can't hit any assert on MacOS.
> 
> TEST(Semaphore, signal_overflow) {
>    Semaphore sem(0);
>    sem.signal((uint)-1);
> }

Similar here:

Semaphore sem(MAX_INT-1);
for (uintx i = 0; i < max_uintx; i++) {
   sem.signal();
}

Test times out after 10 minutes on macOS no errors reported.

David

> 
> On 7/6/21 11:58 PM, David Holmes wrote:
>> e due diligence