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monitor: Use argument type 'b' for migrate_set_speed

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Before, it used type 's', which strips quotes and interprets escapes,
and is quite inappropriate for QMP.

Negative arguments are no flushed to zero.  Before, they were cast to
uint32_t, which wrecked the sign.

Ridiculously large arguments including infinities are now rejected.
Before, they were interpreted as zero.  Same for NaN.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Markus Armbruster 2010-01-25 14:23:04 +01:00 committed by Anthony Liguori
parent 3350a4dd07
commit 5667c493c4
2 changed files with 4 additions and 16 deletions
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18
migration.c
View File

@ -109,23 +109,11 @@ void do_migrate_cancel(Monitor *mon, const QDict *qdict, QObject **ret_data)
void do_migrate_set_speed(Monitor *mon, const QDict *qdict)
{
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;
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) {

2
qemu-monitor.hx
View File

@ -761,7 +761,7 @@ ETEXI
{
.name = "migrate_set_speed",
.args_type = "value:s",
.args_type = "value:b",
.params = "value",
.help = "set maximum speed (in bytes) for migrations",
.mhandler.cmd = do_migrate_set_speed,