Re: PROMPT_COMMAND='history -a; history -n' causes shell hang in OX 10.10 Yosemite / bash 3.2.53

[Graham Jones]

Guys thanks so much for taking this discussion further than just the reported 
bug that prevented the existing workaround. 
I’ve often considered putting this work in myself but wasn’t sure what the 
reason was for this not being in bash already and if there was an architectural 
difficulty with implementing it. It sounds more like that it just wasn’t 
considered as an option rather than there is a problem implementing it. 

Given that ksh only ever worked this way (but its shared history performed 
flawlessly)l, I would think that the mechanism they used and particularly how 
they handled the locking is a good place to start with.  

GJ

> On 7 Nov 2014, at 11:29 pm, Piotr Grzybowski <narsil.pl@gmail.com> wrote:
> 
> On Fri, Nov 7, 2014 at 1:26 PM, Eric Blake <eblake@redhat.com> wrote:
>> 
>> Named pipes (aka fifos) are notorious for being buggy on Cygwin and
>> non-available on mingw.
> 
> thanks Eric. good news.
> so this means, that shared history can only be implemented using
> regular files. is that right?
> 
> cheers,
> pg