Commit Graph

6 Commits

Author SHA1 Message Date
Erik Skultety
252610f7dd virnetdaemon: Store servers in a hash table
Since the daemon can manage and add (at fresh start) multiple servers,
we also should be able to add them from a JSON state file in case of a
daemon restart, so post exec restart support for multiple servers is also
provided. Patch also updates virnetdaemontest accordingly.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2016-02-17 12:46:34 +01:00
Michal Privoznik
862298a2e7 dbus: Don't unref NULL messages
Apparently we are not the only ones with dumb free functions
because dbus_message_unref() does not accept NULL either. But if
I were to vote, this one is even more evil. Instead of returning
an error just like we do it immediately dereference any pointer
passed and thus crash you app. Well done DBus!

  Program received signal SIGSEGV, Segmentation fault.
  [Switching to Thread 0x7f878ebda700 (LWP 31264)]
  0x00007f87be4016e5 in ?? () from /usr/lib64/libdbus-1.so.3
  (gdb) bt
  #0  0x00007f87be4016e5 in ?? () from /usr/lib64/libdbus-1.so.3
  #1  0x00007f87be3f004e in dbus_message_unref () from /usr/lib64/libdbus-1.so.3
  #2  0x00007f87bf6ecf95 in virSystemdGetMachineNameByPID (pid=9849) at util/virsystemd.c:228
  #3  0x00007f879761bd4d in qemuConnectCgroup (driver=0x7f87600a32a0, vm=0x7f87600c7550) at qemu/qemu_cgroup.c:909
  #4  0x00007f87976386b7 in qemuProcessReconnect (opaque=0x7f87600db840) at qemu/qemu_process.c:3386
  #5  0x00007f87bf6edfff in virThreadHelper (data=0x7f87600d5580) at util/virthread.c:206
  #6  0x00007f87bb602334 in start_thread (arg=0x7f878ebda700) at pthread_create.c:333
  #7  0x00007f87bb3481bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
  (gdb) frame 2
  #2  0x00007f87bf6ecf95 in virSystemdGetMachineNameByPID (pid=9849) at util/virsystemd.c:228
  228         dbus_message_unref(reply);
  (gdb) p reply
  $1 = (DBusMessage *) 0x0

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-02-11 11:35:02 +01:00
Martin Kletzander
b7ea58c262 rpc: Rework timerActive logic in daemon
Daemon used false logic for determining whether there were any clients.
When the timer was inactive, it was activated if at least one of the
servers did not have clients.  So the bool was being flipped there and
back all the time in case there was one client, for example.

Initially introduced by fa14207368.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1240283

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2015-07-10 11:13:29 +02:00
Martin Kletzander
699faeacb1 rpc: Add virNetDaemonHasClients
So callers don't have to iterate over each server.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2015-07-10 10:50:22 +02:00
Peter Krempa
4002395dd7 rpc: Actually increase reference count on @srv in virNetDaemonAddServer
VIR_APPEND_ELEMENT would clear @srv to NULL after it successfully
inserted it thus the reference count could not be increased afterwards.

Switch to VIR_APPEND_ELEMENT_COPY. This fixes crash after terminating
the daemon.
2015-06-18 13:32:37 +02:00
Martin Kletzander
fa14207368 Move daemon-related parts of virNetServer to virNetDaemon
This allows to have more servers in one daemon which helps isolating
some resources.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2015-06-16 13:46:19 +02:00