This will be used to pass MSG_DONTWAIT in next patch.
Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Remove getting opts from descriptors out from scm engine,
this stuff is pure criu thing, so make it collect the data.
The tricky change here is that parasite code needs memory
to keep fd_opts on. The memory is taken from parasite args
region, which is now bigger than it used to be. But that's
not a big deal, as previously this space was allocated on
the parasite stack (!, but with smaller chunks).
On the other hand, now we have one memcpy less, as opts are
put directly into the destination buffer.
travis-ci: success for files: Rework send/recv-fds to be more generic
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Currently criu built with criu/pie-util-fd (which
is a symlink to criu/pie/util-fd) with same flags
as we use in general compel infection code. Moreover
the criu link with libcompel.a, so we get a problem
where send_fds/recv_fds are multiple defined. Lets
rather unweave this mess:
- drop criu/pie-util-fd.c completely
- move send_fd/recv_fd inliners into scm.h
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
- Declare send_fds, recv_fds in sch.h, these
are prototypes used in both compel and criu
- Drop old protos from plugin-fds.h uapi file
- Drop old code from fds.c source
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
