Re: Clean up sha1 file writing

> 
> On Sun, 4 Jun 2006, Linus Torvalds wrote:
>> On Sun, 4 Jun 2006, H. Peter Anvin wrote:
>>> Or if you're getting a SIGWINCH in the middle of it.
>>>
>>> Any POSIX system will interrupt the transfer and return a short read on
>>> receiving a signal.
>> Only for interruptible fd's, though, which normally a real "file" won't 
>> be.
> 
> And _usually_ only if you actually have a SIGWINCH handler.
> 
> Although older Linux kernels were broken in this regard. They'd interrupt 
> a socket/pipe read or write even for a signal that ended up being ignored.
> 
> So it's absolutely the case that having the loop is always the safer thing 
> to do, and it's never the _wrong_ thing to do.
>