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Automatically select the connection in this order:
- URI specified via command line --connect
- First active connection
- First connection
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
And clean up the API mess while we are at it. Treat the key as an opaque
value that users shouldn't depend on.
Besides the improved code clarity and API layout, this will help diagnose
'key error' issues, since we'll see an object name instead of UUID which
is hard to trace back.
If a remote network connection stalls, the tick queue becomes backed
up while we wait for the hung connection to continue. While this
happens, the queue is filled up with other requests to poll the hung
connection.
When the connection finally times out, the tick thread closes the
connection via an idle callback. However before that callback gets
a chance to run, all the other poll requests for the dead connection
are processed, all launching their own error dialog.
Mark the connection as 'closing' before conn.close is scheduled, and
use it to short circuit the tick() routine.
This patch makes virt-manager usable again without systemd (or dbus).
When started without systemd, but with libvirtd properly working,
there was error reported, and virt-manager didn't even try to connect
to the destination.
This patch modifies the behavior in two ways. When connection is
added with "do_start=False" it will still try to connect, but won't
error out when unsuccessful. The second modification is that upon
startup, the idle_connect() function will error out only if we failed
starting libvirtd _and_ we couldn't connect to the uri. So if we
failed starting libvirtd, but could connect, there is no disruption
for the user.
Ensure that any file touched by a @redhat.com author in 2013 has an
updated copyright header.
The files were updated using the build-aux/update-copyright gnulib
script and manually added where the copyright line wasn't present.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Basically, drop usage of nested main loops. As has been documented in
other commit messages, we use nested main loops in ways they aren't
supposed to be used. They gave us async behavior that would block
callers, but had weird behavior in some edge cases.
Switch to having async dialogs be 100% async, requiring the user to
pass in a completion callback which is triggered after the async
action is complete.
Our search dialog isn't as full featured as packagekits, so just call
out to that. This was originally avoided because it doesn't full
provide the semantics we want, but it's close enough and saves us
from duplicating all their work.
In case of connection failure, the user can either maintain the connection
or modify it.
Split up `add_connection_to_ui' into `make_conn' and `register_conn'
to handle separately the object creation and its registration in the
list of connections (ui and conf).
Solves: https://bugzilla.redhat.com/show_bug.cgi?id=617386
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
The goal here is to reduce the amount of tick() polling that we do by default.
For things like pools, networks, and interfaces, the constant polling is
not very helpful and causes CPU churn and slowness for remote connections.
Switch to a more on demand style. Pages that want new information for
these objects now request a priority tick that only refreshes the info
we want.
This isn't perfect, but neither was the previous solution in the face of
things like XML updates behind our back. The real solution here is libvirt
event support across the board.
This base connection object will be used to simplify the API in various
places, reduce libvirt API calls, and better share code between virtinst
and virt-manager. For now it just centralizes connection opening.
This also exposed various places where our handling for older libvirt
was busted, so raise our minimum host version to 0.6.0, the first
version that supports threaded client requests.
Now that virt-manager requires very modern versions of gtk, it's
quite unlikely that we will even run on a system with an old
libguestfs version, so don't bother checking versions.
When a VM is undefined, whether explicitly through virt-manager or behind
our back, we close and cleanup any associated vmmDetails windows. However
there's a race here: if the details window is the last remaining top
level window, cleanup() is called twice which tracebacks.
Fix this by dispatching the exit_app routine in an idle callback, to
avoid racing with any window delete routines.
Reported-by: Leonardo Garcia <lagarcia@br.ibm.com>
