void do_migrate_set_speed(Monitor *mon, const QDict *qdict, QObject **ret_data)
{
double d;
char *ptr;
FdMigrationState *s;
const char *value = qdict_get_str(qdict, "value");
d = strtod(value, &ptr);
switch (*ptr) {
case 'G': case 'g':
d *= 1024;
case 'M': case 'm':
d *= 1024;
case 'K': case 'k':
d *= 1024;
default:
break;
}
max_throttle = (uint32_t)d;
s = migrate_to_fms(current_migration);
if (s) {
qemu_file_set_rate_limit(s->file, max_throttle);
}
}
void migrate_fd_cancel(MigrationState *mig_state)
{
FdMigrationState *s = migrate_to_fms(mig_state);
if (s->state == MIG_STATE_CANCELLED) {
return;
}
DPRINTF("cancelling migration\n");
s->state = MIG_STATE_CANCELLED;
notifier_list_notify(&migration_state_notifiers);
if (ft_mode) {
if (s->file) {
qemu_ft_trans_cancel(s->file);
}
ft_mode = FT_OFF;
event_tap_unregister();
}
if (s->file) {
qemu_savevm_state_cancel(s->mon, s->file);
migrate_fd_cleanup(s);
}
}
void migrate_fd_release(MigrationState *mig_state)
{
FdMigrationState *s = migrate_to_fms(mig_state);
dprintf("releasing state\n");
if (s->state == MIG_STATE_ACTIVE) {
s->state = MIG_STATE_CANCELLED;
migrate_fd_cleanup(s);
}
free(s);
}
void migrate_fd_release(MigrationState *mig_state)
{
FdMigrationState *s = migrate_to_fms(mig_state);
DPRINTF("releasing state\n");
if (s->state == MIG_STATE_ACTIVE) {
s->state = MIG_STATE_CANCELLED;
notifier_list_notify(&migration_state_notifiers, NULL);
migrate_fd_cleanup(s);
}
g_free(s);
}
void migrate_fd_cancel(MigrationState *mig_state)
{
FdMigrationState *s = migrate_to_fms(mig_state);
if (s->state != MIG_STATE_ACTIVE)
return;
dprintf("cancelling migration\n");
s->state = MIG_STATE_CANCELLED;
migrate_fd_cleanup(s);
}
void migrate_fd_cancel(MigrationState *mig_state)
{
FdMigrationState *s = migrate_to_fms(mig_state);
if (s->state != MIG_STATE_ACTIVE)
return;
DPRINTF("cancelling migration\n");
s->state = MIG_STATE_CANCELLED;
qemu_savevm_state_cancel(s->mon, s->file);
migrate_fd_cleanup(s);
}
int do_migrate_set_perfvalue(Monitor *mon, const QDict *qdict, QObject **ret_data)
{
double d;
FdMigrationState *s;
d = qdict_get_int(qdict, "value");
d = MAX(0, d);
s = migrate_to_fms(current_migration);
if (s) {
s->mig_state.metricvalue=d;
}
return 0;
}
int do_migrate_set_speed(Monitor *mon, const QDict *qdict, QObject **ret_data)
{
double d;
FdMigrationState *s;
d = qdict_get_double(qdict, "value");
d = MAX(0, MIN(UINT32_MAX, d));
max_throttle = d;
s = migrate_to_fms(current_migration);
if (s && s->file) {
qemu_file_set_rate_limit(s->file, max_throttle);
}
return 0;
}
int do_migrate_set_speed(Monitor *mon, const QDict *qdict, QObject **ret_data)
{
int64_t d;
FdMigrationState *s;
d = qdict_get_int(qdict, "value");
if (d < 0) {
d = 0;
}
max_throttle = d;
s = migrate_to_fms(current_migration);
if (s && s->file) {
qemu_file_set_rate_limit(s->file, max_throttle);
}
return 0;
}
int migrate_fd_get_status(MigrationState *mig_state)
{
FdMigrationState *s = migrate_to_fms(mig_state);
return s->state;
}
static int migrate_ft_trans_put_ready(void)
{
FdMigrationState *s = migrate_to_fms(current_migration);
int ret = -1, init = 0, timeout;
static int64_t start, now;
switch (ft_mode) {
case FT_INIT:
init = 1;
ft_mode = FT_TRANSACTION_BEGIN;
case FT_TRANSACTION_BEGIN:
now = start = qemu_get_clock_ns(vm_clock);
/* start transatcion at best effort */
qemu_file_set_rate_limit(s->file, 1);
if (qemu_ft_trans_begin(s->file) < 0) {
fprintf(stderr, "qemu_transaction_begin failed\n");
goto error_out;
}
vm_stop(0);
ret = qemu_savevm_trans_begin(s->mon, s->file, init);
if (ret < 0) {
fprintf(stderr, "qemu_savevm_trans_begin\n");
goto error_out;
}
if (ret) {
ft_mode = FT_TRANSACTION_ITER;
vm_start();
} else {
ft_mode = FT_TRANSACTION_COMMIT;
if (migrate_ft_trans_commit(s) < 0) {
goto error_out;
}
}
break;
case FT_TRANSACTION_ITER:
now = qemu_get_clock_ns(vm_clock);
timeout = ((now - start) >= max_downtime);
if (timeout || qemu_savevm_state_iterate(s->mon, s->file) == 1) {
DPRINTF("ft trans iter timeout %d\n", timeout);
ft_mode = FT_TRANSACTION_COMMIT;
if (migrate_ft_trans_commit(s) < 0) {
goto error_out;
}
return 1;
}
ft_mode = FT_TRANSACTION_ITER;
break;
case FT_TRANSACTION_ATOMIC:
case FT_TRANSACTION_COMMIT:
if (migrate_ft_trans_commit(s) < 0) {
goto error_out;
}
break;
default:
fprintf(stderr,
"migrate_ft_trans_put_ready: invalid ft_mode %d", ft_mode);
goto error_out;
}
ret = 0;
goto out;
error_out:
migrate_ft_trans_error(s);
out:
return ret;
}
