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monitor: Use argument type 'T' for migrate_set_downtime

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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 14:23:07 +01:00 committed by Anthony Liguori
parent fccfb11e0d
commit b0fbf7d342
2 changed files with 3 additions and 14 deletions
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15
migration.c
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@ -134,21 +134,10 @@ uint64_t migrate_max_downtime(void)
void do_migrate_set_downtime(Monitor *mon, const QDict *qdict)
{
char *ptr;
double d;
const char *value = qdict_get_str(qdict, "value");
d = strtod(value, &ptr);
if (!strcmp(ptr,"ms")) {
d *= 1000000;
} else if (!strcmp(ptr,"us")) {
d *= 1000;
} else if (!strcmp(ptr,"ns")) {
} else {
/* all else considered to be seconds */
d *= 1000000000;
}
d = qdict_get_double(qdict, "value") * 1e9;
d = MAX(0, MIN(UINT64_MAX, d));
max_downtime = (uint64_t)d;
}

2
qemu-monitor.hx
View File

@ -775,7 +775,7 @@ ETEXI
{
.name = "migrate_set_downtime",
.args_type = "value:s",
.args_type = "value:T",
.params = "value",
.help = "set maximum tolerated downtime (in seconds) for migrations",
.mhandler.cmd = do_migrate_set_downtime,