The idea of making file reads stateless is interesting. I wonder if it's atomic ... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

		userbinator on March 7, 2020 \| parent \| context \| favorite \| on: Two new ways to read a file quickly The idea of making file reads stateless is interesting. I wonder if it's atomic too? I think that might be very useful to have.

loeg on March 7, 2020 [–]

It does sort of raise the question of how interrupts are handled. Short reads / EINTR and suddenly this mechanism is less efficient than open+read+close. Depending on how SA_RESTART is implemented, it may not help. Do consumers have to mask signals around readfile(), and if so, are we saving any system calls?

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact