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spice: turn client_migrate_info to async

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RHBZ 737921
Spice client is required to connect to the migration target before/as migration
starts. Since after migration starts, the target qemu is blocked and cannot accept new spice client
we trigger the connection to the target upon client_migrate_info command.
client_migrate_info completion cb will be called after spice client has been
connected to the target (or a timeout). See following patches and spice patches.

Signed-off-by: Yonit Halperin <yhalperi@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Yonit Halperin 2011-10-17 10:03:18 +02:00 committed by Gerd Hoffmann
parent afe2df69cf
commit edc5cb1a52
5 changed files with 26 additions and 10 deletions
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3
hmp-commands.hx
View File

@ -824,7 +824,8 @@ ETEXI
.params = "protocol hostname port tls-port cert-subject",
.help = "send migration info to spice/vnc client",
.user_print = monitor_user_noop,
.mhandler.cmd_new = client_migrate_info,
.mhandler.cmd_async = client_migrate_info,
.flags = MONITOR_CMD_ASYNC,
},
STEXI

6
monitor.c
View File

@ -1153,7 +1153,8 @@ static int add_graphics_client(Monitor *mon, const QDict *qdict, QObject **ret_d
return -1;
}
static int client_migrate_info(Monitor *mon, const QDict *qdict, QObject **ret_data)
static int client_migrate_info(Monitor *mon, const QDict *qdict,
MonitorCompletion cb, void *opaque)
{
const char *protocol = qdict_get_str(qdict, "protocol");
const char *hostname = qdict_get_str(qdict, "hostname");
@ -1168,7 +1169,8 @@ static int client_migrate_info(Monitor *mon, const QDict *qdict, QObject **ret_d
return -1;
}
ret = qemu_spice_migrate_info(hostname, port, tls_port, subject);
ret = qemu_spice_migrate_info(hostname, port, tls_port, subject,
cb, opaque);
if (ret != 0) {
qerror_report(QERR_UNDEFINED_ERROR);
return -1;

3
qmp-commands.hx
View File

@ -569,7 +569,8 @@ EQMP
.params = "protocol hostname port tls-port cert-subject",
.help = "send migration info to spice/vnc client",
.user_print = monitor_user_noop,
.mhandler.cmd_new = client_migrate_info,
.mhandler.cmd_async = client_migrate_info,
.flags = MONITOR_CMD_ASYNC,
},
SQMP

14
ui/qemu-spice.h
View File

@ -25,6 +25,7 @@
#include "qemu-option.h"
#include "qemu-config.h"
#include "qemu-char.h"
#include "monitor.h"
extern int using_spice;
@ -37,7 +38,8 @@ int qemu_spice_set_passwd(const char *passwd,
bool fail_if_connected, bool disconnect_if_connected);
int qemu_spice_set_pw_expire(time_t expires);
int qemu_spice_migrate_info(const char *hostname, int port, int tls_port,
const char *subject);
const char *subject,
MonitorCompletion cb, void *opaque);
void do_info_spice_print(Monitor *mon, const QObject *data);
void do_info_spice(Monitor *mon, QObject **ret_data);
@ -45,6 +47,7 @@ void do_info_spice(Monitor *mon, QObject **ret_data);
int qemu_chr_open_spice(QemuOpts *opts, CharDriverState **_chr);
#else /* CONFIG_SPICE */
#include "monitor.h"
#define using_spice 0
static inline int qemu_spice_set_passwd(const char *passwd,
@ -57,8 +60,13 @@ static inline int qemu_spice_set_pw_expire(time_t expires)
{
return -1;
}
static inline int qemu_spice_migrate_info(const char *h, int p, int t, const char *s)
{ return -1; }
static inline int qemu_spice_migrate_info(const char *h, int p, int t,
const char *s,
MonitorCompletion cb, void *opaque)
{
cb(opaque, NULL);
return -1;
}
#endif /* CONFIG_SPICE */

10
ui/spice-core.c
View File

@ -457,10 +457,14 @@ static void migration_state_notifier(Notifier *notifier, void *data)
}
int qemu_spice_migrate_info(const char *hostname, int port, int tls_port,
const char *subject)
const char *subject,
MonitorCompletion *cb, void *opaque)
{
return spice_server_migrate_info(spice_server, hostname,
port, tls_port, subject);
int ret;
ret = spice_server_migrate_info(spice_server, hostname,
port, tls_port, subject);
cb(opaque, NULL);
return ret;
}
static int add_channel(const char *name, const char *value, void *opaque)