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net/announce: Add HMP optional ID 

Add the optional ID to the HMP command.

e.g.
   # start an announce for a long time on eth1
   migrate_set_parameter announce-rounds 1000
   announce_self "eth1" e1

   # start an announce on eth2
   announce_self "eth2" e2

   # Change e1 to be announcing on eth1 and eth3
   announce_self "eth1,eth3" e1

   # Cancel e1
   migrate_set_parameter announce-rounds 0
   announce_self "" e1

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Dr. David Alan Gilbert 2019-06-20 19:47:05 +01:00 committed by Jason Wang
parent 944458b659
commit c6644548c7
2 changed files with 7 additions and 3 deletions
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7
hmp-commands.hx
View File

@ -955,8 +955,8 @@ ETEXI
{
.name = "announce_self",
.args_type = "interfaces:s?",
.params = "[interfaces]",
.args_type = "interfaces:s?,id:s?",
.params = "[interfaces] [id]",
.help = "Trigger GARP/RARP announcements",
.cmd = hmp_announce_self,
},
@ -968,7 +968,8 @@ Trigger a round of GARP/RARP broadcasts; this is useful for explicitly updating
network infrastructure after a reconfiguration or some forms of migration.
The timings of the round are set by the migration announce parameters.
An optional comma separated @var{interfaces} list restricts the announce to the
named set of interfaces.
named set of interfaces. An optional @var{id} can be used to start a separate announce
timer and to change the parameters of it later.
ETEXI
{

3
monitor/hmp-cmds.c
View File

@ -1660,12 +1660,15 @@ void hmp_info_snapshots(Monitor *mon, const QDict *qdict)
void hmp_announce_self(Monitor *mon, const QDict *qdict)
{
const char *interfaces_str = qdict_get_try_str(qdict, "interfaces");
const char *id = qdict_get_try_str(qdict, "id");
AnnounceParameters *params = QAPI_CLONE(AnnounceParameters,
migrate_announce_params());
qapi_free_strList(params->interfaces);
params->interfaces = strList_from_comma_list(interfaces_str);
params->has_interfaces = params->interfaces != NULL;
params->id = g_strdup(id);
params->has_id = !!params->id;
qmp_announce_self(params, NULL);
qapi_free_AnnounceParameters(params);
}