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Introduce a update-device command in virsh

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Support the new virDomainUpdateDeviceFlags API in virsh by adding
a new 'update-device' command. In the future this should be augmented
with an explicit 'change-disk' command for media change to make it
end user discoverable, as attach-disk is.

* tools/virsh.c: Add 'update-device' command
This commit is contained in:
Daniel P. Berrange 2010-03-22 18:45:09 +00:00
parent 6bb4986b0b
commit ced154cb54
1 changed files with 68 additions and 0 deletions
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68
tools/virsh.c
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@ -6676,6 +6676,73 @@ cmdDetachDevice(vshControl *ctl, const vshCmd *cmd)
}
/*
* "update-device" command
*/
static const vshCmdInfo info_update_device[] = {
{"help", N_("update device from an XML file")},
{"desc", N_("Update device from an XML <file>.")},
{NULL, NULL}
};
static const vshCmdOptDef opts_update_device[] = {
{"domain", VSH_OT_DATA, VSH_OFLAG_REQ, N_("domain name, id or uuid")},
{"file", VSH_OT_DATA, VSH_OFLAG_REQ, N_("XML file")},
{"persistent", VSH_OT_BOOL, 0, N_("persist device update")},
{NULL, 0, 0, NULL}
};
static int
cmdUpdateDevice(vshControl *ctl, const vshCmd *cmd)
{
virDomainPtr dom;
char *from;
char *buffer;
int ret = TRUE;
int found;
unsigned int flags;
if (!vshConnectionUsability(ctl, ctl->conn, TRUE))
return FALSE;
if (!(dom = vshCommandOptDomain(ctl, cmd, NULL)))
return FALSE;
from = vshCommandOptString(cmd, "file", &found);
if (!found) {
vshError(ctl, "%s", _("update-device: Missing <file> option"));
virDomainFree(dom);
return FALSE;
}
if (virFileReadAll(from, VIRSH_MAX_XML_FILE, &buffer) < 0) {
virDomainFree(dom);
return FALSE;
}
if (vshCommandOptBool(cmd, "persistent")) {
flags = VIR_DOMAIN_DEVICE_MODIFY_CONFIG;
if (virDomainIsActive(dom) == 1)
flags |= VIR_DOMAIN_DEVICE_MODIFY_LIVE;
} else {
flags = VIR_DOMAIN_DEVICE_MODIFY_LIVE;
}
ret = virDomainUpdateDeviceFlags(dom, buffer, flags);
VIR_FREE(buffer);
if (ret < 0) {
vshError(ctl, _("Failed to update device from %s"), from);
virDomainFree(dom);
return FALSE;
} else {
vshPrint(ctl, "%s", _("Device updated successfully\n"));
}
virDomainFree(dom);
return TRUE;
}
/*
* "attach-interface" command
*/
@ -7891,6 +7958,7 @@ static const vshCmdDef commands[] = {
{"suspend", cmdSuspend, opts_suspend, info_suspend},
{"ttyconsole", cmdTTYConsole, opts_ttyconsole, info_ttyconsole},
{"undefine", cmdUndefine, opts_undefine, info_undefine},
{"update-device", cmdUpdateDevice, opts_update_device, info_update_device},
{"uri", cmdURI, NULL, info_uri},
{"vol-create", cmdVolCreate, opts_vol_create, info_vol_create},