>
> On Wed, Nov 16, 2016 at 03:39:15PM +0000, Frediano Ziglio wrote:
> > mmap memory area will remain even if the descriptor is closed.
> >
> > Signed-off-by: Frediano Ziglio <fziglio@xxxxxxxxxx>
> > ---
> > server/stat-file.c | 2 ++
> > 1 file changed, 2 insertions(+)
> >
> > diff --git a/server/stat-file.c b/server/stat-file.c
> > index e9b4208..5f54869 100644
> > --- a/server/stat-file.c
> > +++ b/server/stat-file.c
> > @@ -46,9 +46,11 @@ void stat_file_init(RedStatFile *stat_file, unsigned int
> > max_nodes)
> > spice_error("statistics shm_open failed, %s", strerror(errno));
> > }
> > if (ftruncate(fd, shm_size) == -1) {
> > + close(fd);
> > spice_error("statistics ftruncate failed, %s", strerror(errno));
Maybe this is not necessary if we assure spice_error is going
to exit()/abort().
> > }
> > stat_file->stat = (SpiceStat *)mmap(NULL, shm_size, PROT_READ |
> > PROT_WRITE, MAP_SHARED, fd, 0);
> > + close(fd);
> > if (stat_file->stat == (SpiceStat *)MAP_FAILED) {
> > spice_error("statistics mmap failed, %s", strerror(errno));
> > }
>
> We never munmap() the mmap data either, dunno if that's intentional?
>
> Christophe
>
Yes, many cleanup paths are currently missing in the code.
However we can get rid at least of the descriptor :)
There are currently all the counters still referring to the mmap
area so once we decide to unmap we must be sure there are no pointers
to it.
Frediano
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