在 2018年4月3日星期二 UTC+8下午6:35:57，Christian Brabandt写道：
> On Di, 03 Apr 2018, brucekan...@gmail.com wrote:
>
> > I'm using VIM 8.0 and set the option: "set cscopequickfix=s-,c-,d-,i-,t-,e-"
> > vim will prompt "E484: Can't open file /tmp/vxxxxx/n" occasionally if I'm
> > not root user.
> >
> > when set above option, vim will generate a temp directory under /tmp, I
> > found the temp direcoty was deleted every time when the fault was occurred.
> >
> > after checking source code, the suspecious place is in function:
> > vim_tempname
> >
> > if (vim_tempdir != NULL)
> > {
> > /* There is no need to check if the file exists, because we own the
> > * directory and nobody else creates a file in it. */
> > sprintf((char *)itmp, "%s%ld", vim_tempdir, temp_count++);
> > return vim_strsave(itmp);
> > }
> >
> > if the vim_tempdir is deleted by unknown operation/process, then vim will
> > fault due to it not checking this temp directory before writing it, maybe
> > we need to check vim_tempdir here, if it's not accessable, we build another
> > temp directory.
>
> Do you have any tmp cleanup packages installed that may remove such
> things? Try to disable it.
>
> I have proposed a similar patch several years ago, but it was found to
> work around the real problem that /tmp should not be cleaned randomly,
> so it wasn't included.
>
>
> Best,
> Christian
> --
> Wußten Sie schon...
> ... daß der Walfisch, das größte lebende Säugetier, alle anderen
> Säugetiere an Größe übertrifft?
Hi Christian,
Thanks for you response, I haven't deep investigated which process/operation
delete that temp directory(this fault only appear when I am a normal user, when
I am root, everything is ok), there is another scenario: vim user may use vim
on a shared server, they can't disable cleanup process run in background or
prevent other user delete that temp diretory, so they can't guarantee that temp
direcoty is always there, my opinion is vim should not depend it's stability on
external environment especially public directory, there may happen something
out of vim user's control.
so may be check that path is a better solution if it won't introduces any side
effect, another workaround is add a option to specify path of temp directory
for user themself, eg. set tmpdir = ~/xxx, then temp directory will be build in
this directory, like: ~/xxx/vnNqlrH
BR,
Bruce.
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