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autostart for running Xen domains

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* src/xen_unified.c src/xend_internal.c src/xend_internal.h: patch
  from Cole Robinson implementing autostart for running Xen domains
Daniel
This commit is contained in:
Daniel Veillard 2008-05-09 08:17:18 +00:00
parent eb046f9d59
commit 5e1bd04692
4 changed files with 150 additions and 2 deletions
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5
ChangeLog
View File

@ -1,3 +1,8 @@
Fri May 9 10:10:28 CEST 2008 Daniel Veillard <veillard@redhat.com>
* src/xen_unified.c src/xend_internal.c src/xend_internal.h: patch
from Cole Robinson implementing autostart for running Xen domains
Fri May 9 10:01:34 EST 2008 Jim Meyering <meyering@redhat.com>
sytnax-check: add a check for risky ctype macro use

30
src/xen_unified.c
View File

@ -1128,6 +1128,34 @@ xenUnifiedDomainDetachDevice (virDomainPtr dom, const char *xml)
return -1;
}
static int
xenUnifiedDomainGetAutostart (virDomainPtr dom, int *autostart)
{
GET_PRIVATE(dom->conn);
int i;
for (i = 0; i < XEN_UNIFIED_NR_DRIVERS; ++i)
if (priv->opened[i] && drivers[i]->domainGetAutostart &&
drivers[i]->domainGetAutostart (dom, autostart) == 0)
return 0;
return -1;
}
static int
xenUnifiedDomainSetAutostart (virDomainPtr dom, int autostart)
{
GET_PRIVATE(dom->conn);
int i;
for (i = 0; i < XEN_UNIFIED_NR_DRIVERS; ++i)
if (priv->opened[i] && drivers[i]->domainSetAutostart &&
drivers[i]->domainSetAutostart (dom, autostart) == 0)
return 0;
return -1;
}
static char *
xenUnifiedDomainGetSchedulerType (virDomainPtr dom, int *nparams)
{
@ -1291,6 +1319,8 @@ static virDriver xenUnifiedDriver = {
.domainUndefine = xenUnifiedDomainUndefine,
.domainAttachDevice = xenUnifiedDomainAttachDevice,
.domainDetachDevice = xenUnifiedDomainDetachDevice,
.domainGetAutostart = xenUnifiedDomainGetAutostart,
.domainSetAutostart = xenUnifiedDomainSetAutostart,
.domainGetSchedulerType = xenUnifiedDomainGetSchedulerType,
.domainGetSchedulerParameters = xenUnifiedDomainGetSchedulerParameters,
.domainSetSchedulerParameters = xenUnifiedDomainSetSchedulerParameters,

113
src/xend_internal.c
View File

@ -115,8 +115,8 @@ struct xenUnifiedDriver xenDaemonDriver = {
xenDaemonDomainUndefine, /* domainUndefine */
xenDaemonAttachDevice, /* domainAttachDevice */
xenDaemonDetachDevice, /* domainDetachDevice */
NULL, /* domainGetAutostart */
NULL, /* domainSetAutostart */
xenDaemonDomainGetAutostart, /* domainGetAutostart */
xenDaemonDomainSetAutostart, /* domainSetAutostart */
xenDaemonGetSchedulerType, /* domainGetSchedulerType */
xenDaemonGetSchedulerParameters, /* domainGetSchedulerParameters */
xenDaemonSetSchedulerParameters, /* domainSetSchedulerParameters */
@ -3728,6 +3728,115 @@ xenDaemonDetachDevice(virDomainPtr domain, const char *xml)
"type", class, "dev", ref, "force", "0", "rm_cfg", "1", NULL));
}
int
xenDaemonDomainGetAutostart(virDomainPtr domain,
int *autostart)
{
struct sexpr *root;
const char *tmp;
xenUnifiedPrivatePtr priv;
if ((domain == NULL) || (domain->conn == NULL) || (domain->name == NULL)) {
virXendError((domain ? domain->conn : NULL), VIR_ERR_INVALID_ARG,
__FUNCTION__);
return (-1);
}
/* xm_internal.c (the support for defined domains from /etc/xen
* config files used by old Xen) will handle this.
*/
priv = (xenUnifiedPrivatePtr) domain->conn->privateData;
if (priv->xendConfigVersion < 3)
return(-1);
root = sexpr_get(domain->conn, "/xend/domain/%s?detail=1", domain->name);
if (root == NULL) {
virXendError (domain->conn, VIR_ERR_XEN_CALL,
_("xenDaemonGetAutostart failed to find this domain"));
return (-1);
}
*autostart = 0;
tmp = sexpr_node(root, "domain/on_xend_start");
if (tmp && STREQ(tmp, "start")) {
*autostart = 1;
}
sexpr_free(root);
return 0;
}
int
xenDaemonDomainSetAutostart(virDomainPtr domain,
int autostart)
{
struct sexpr *root, *autonode;
const char *autostr;
char buf[4096];
int ret = -1;
xenUnifiedPrivatePtr priv;
if ((domain == NULL) || (domain->conn == NULL) || (domain->name == NULL)) {
virXendError((domain ? domain->conn : NULL), VIR_ERR_INTERNAL_ERROR,
__FUNCTION__);
return (-1);
}
/* xm_internal.c (the support for defined domains from /etc/xen
* config files used by old Xen) will handle this.
*/
priv = (xenUnifiedPrivatePtr) domain->conn->privateData;
if (priv->xendConfigVersion < 3)
return(-1);
root = sexpr_get(domain->conn, "/xend/domain/%s?detail=1", domain->name);
if (root == NULL) {
virXendError (domain->conn, VIR_ERR_XEN_CALL,
_("xenDaemonSetAutostart failed to find this domain"));
return (-1);
}
autostr = sexpr_node(root, "domain/on_xend_start");
if (autostr) {
if (!STREQ(autostr, "ignore") && !STREQ(autostr, "start")) {
virXendError(domain->conn, VIR_ERR_INTERNAL_ERROR,
_("unexpected value from on_xend_start"));
goto error;
}
// Change the autostart value in place, then define the new sexpr
autonode = sexpr_lookup(root, "domain/on_xend_start");
free(autonode->u.s.car->u.value);
autonode->u.s.car->u.value = (autostart ? strdup("start")
: strdup("ignore"));
if (!(autonode->u.s.car->u.value)) {
virXendError(domain->conn, VIR_ERR_INTERNAL_ERROR,
_("no memory"));
goto error;
}
if (sexpr2string(root, buf, sizeof(buf)) == 0) {
virXendError(domain->conn, VIR_ERR_INTERNAL_ERROR,
_("sexpr2string failed"));
goto error;
}
if (xend_op(domain->conn, "", "op", "new", "config", buf, NULL) != 0) {
virXendError(domain->conn, VIR_ERR_XEN_CALL,
_("Failed to redefine sexpr"));
goto error;
}
} else {
virXendError(domain->conn, VIR_ERR_INTERNAL_ERROR,
_("on_xend_start not present in sexpr"));
goto error;
}
ret = 0;
error:
sexpr_free(root);
return ret;
}
int
xenDaemonDomainMigratePrepare (virConnectPtr dconn,

4
src/xend_internal.h
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@ -229,6 +229,10 @@ int xenDaemonDomainGetVcpus (virDomainPtr domain,
int maxinfo,
unsigned char *cpumaps,
int maplen);
int xenDaemonDomainGetAutostart (virDomainPtr dom,
int *autostart);
int xenDaemonDomainSetAutostart (virDomainPtr domain,
int autostart);
/* xen_unified calls through here. */
extern struct xenUnifiedDriver xenDaemonDriver;