On 2024-06-17 09:31, Miaohe Lin wrote:
IMHO, it might not be suitable to use EAGAIN. Because it means "Resource temporarily unavailable" and this can be solved by simply retry later without any further actions taken. But I might be wrong.
We usually use 'EOPNOTSUPP' when we fail due to a setting not being set. EPERM is more for a capability matter.