Ouch, yes, I meant fgetc_unlocked.

Thank you for the help! As a solution I'm going to make a PR with the mentioned changes, i.e. copy the approach of writef and apply @trusted to LockingTextReader - I think I can do this, because its behaviour ensures that functions FGETC, FLOCK, FUNLOCK are invoked in a safe manner.

On Tuesday, 7 February 2017 at 20:04:51 UTC, Andrei Alexandrescu wrote:
On 2/7/17 2:07 PM, Jakub Łabaj via phobos wrote:
I see it like this:
- flockfile - can be @trusted, because no matter when we call it with
correct argument, it won't do anything unsafe

affirmative

- funlockfile - if called by not owning thread, the behaviour is undefined - so potentially may do something unsafe (I don't know what
> happens if called on not locked file, probably is ignored)

affirmative - in C "undefined" implies "unsafe"

fgetc - when not guarded by lock it is not thread safe, shouldn't be
@trusted

I think you mean fgetc_unlocked? fgetc issues its own locking and unlocking.


Andrei


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