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[Qemu-devel] [PATCH v3 3/5] spice migration: add QEVENT_SPICE_MIGRATE_CO
From: |
Yonit Halperin |
Subject: |
[Qemu-devel] [PATCH v3 3/5] spice migration: add QEVENT_SPICE_MIGRATE_COMPLETED |
Date: |
Tue, 21 Aug 2012 11:51:57 +0300 |
When migrating, libvirt queries the migration status, and upon migration
completions, it closes the migration src. On the other hand, when
migration is completed, spice transfers data from the src to destination
via the client. This data is required for keeping the spice session
after migration, without suffering from data loss and inconsistencies.
In order to allow this data transfer, we add QEVENT for signaling
libvirt that spice migration has completed, and libvirt needs to wait
for this event before quitting the src process.
Signed-off-by: Yonit Halperin <address@hidden>
---
monitor.c | 1 +
monitor.h | 1 +
ui/spice-core.c | 9 ++++++++-
3 files changed, 10 insertions(+), 1 deletions(-)
diff --git a/monitor.c b/monitor.c
index ce42466..584efe0 100644
--- a/monitor.c
+++ b/monitor.c
@@ -455,6 +455,7 @@ static const char *monitor_event_names[] = {
[QEVENT_SUSPEND_DISK] = "SUSPEND_DISK",
[QEVENT_WAKEUP] = "WAKEUP",
[QEVENT_BALLOON_CHANGE] = "BALLOON_CHANGE",
+ [QEVENT_SPICE_MIGRATE_COMPLETED] = "SPICE_MIGRATE_COMPLETED",
};
QEMU_BUILD_BUG_ON(ARRAY_SIZE(monitor_event_names) != QEVENT_MAX)
diff --git a/monitor.h b/monitor.h
index 47d556b..5fc2983 100644
--- a/monitor.h
+++ b/monitor.h
@@ -43,6 +43,7 @@ typedef enum MonitorEvent {
QEVENT_SUSPEND_DISK,
QEVENT_WAKEUP,
QEVENT_BALLOON_CHANGE,
+ QEVENT_SPICE_MIGRATE_COMPLETED,
/* Add to 'monitor_event_names' array in monitor.c when
* defining new events here */
diff --git a/ui/spice-core.c b/ui/spice-core.c
index fa78cc3..73f8a95 100644
--- a/ui/spice-core.c
+++ b/ui/spice-core.c
@@ -285,6 +285,7 @@ typedef struct SpiceMigration {
} SpiceMigration;
static void migrate_connect_complete_cb(SpiceMigrateInstance *sin);
+static void migrate_end_complete_cb(SpiceMigrateInstance *sin);
static const SpiceMigrateInterface migrate_interface = {
.base.type = SPICE_INTERFACE_MIGRATION,
@@ -292,7 +293,7 @@ static const SpiceMigrateInterface migrate_interface = {
.base.major_version = SPICE_INTERFACE_MIGRATION_MAJOR,
.base.minor_version = SPICE_INTERFACE_MIGRATION_MINOR,
.migrate_connect_complete = migrate_connect_complete_cb,
- .migrate_end_complete = NULL,
+ .migrate_end_complete = migrate_end_complete_cb,
};
static SpiceMigration spice_migrate;
@@ -305,6 +306,11 @@ static void
migrate_connect_complete_cb(SpiceMigrateInstance *sin)
}
sm->connect_complete.cb = NULL;
}
+
+static void migrate_end_complete_cb(SpiceMigrateInstance *sin)
+{
+ monitor_protocol_event(QEVENT_SPICE_MIGRATE_COMPLETED, NULL);
+}
#endif
/* config string parsing */
@@ -488,6 +494,7 @@ static void migration_state_notifier(Notifier *notifier,
void *data)
} else if (migration_has_finished(s)) {
#ifndef SPICE_INTERFACE_MIGRATION
spice_server_migrate_switch(spice_server);
+ monitor_protocol_event(QEVENT_SPICE_MIGRATE_COMPLETED, NULL);
#else
spice_server_migrate_end(spice_server, true);
} else if (migration_has_failed(s)) {
--
1.7.7.6
- [Qemu-devel] [PATCH v3 0/5] add support for spice migration v3, Yonit Halperin, 2012/08/21
- [Qemu-devel] [PATCH v3 4/5] spice: add 'migrated' flag to spice info, Yonit Halperin, 2012/08/21
- [Qemu-devel] [PATCH v3 2/5] spice: notify on vm state change only via spice_server_vm_start/stop, Yonit Halperin, 2012/08/21
- [Qemu-devel] [PATCH v3 1/5] spice: notify spice server on vm start/stop, Yonit Halperin, 2012/08/21
- [Qemu-devel] [PATCH v3 3/5] spice migration: add QEVENT_SPICE_MIGRATE_COMPLETED,
Yonit Halperin <=
- [Qemu-devel] [PATCH v3 5/5] spice: adding seamless-migration option to the command line, Yonit Halperin, 2012/08/21
- Re: [Qemu-devel] [PATCH v3 0/5] add support for spice migration v3, Michal Privoznik, 2012/08/21
- Re: [Qemu-devel] [PATCH v3 0/5] add support for spice migration v3, Gerd Hoffmann, 2012/08/21