NuKVM/libvirt
3
0
Fork 0
mirror of https://github.com/libvirt/libvirt.git synced 2025-02-25 18:55:26 -06:00
Code Issues Packages Projects Releases Wiki Activity

Add support for an explicit watchdog event

Browse Source 
This introduces a new event type

   VIR_DOMAIN_EVENT_ID_WATCHDOG

This event includes the action that is about to be taken
as a result of the watchdog triggering

 typedef enum {
     VIR_DOMAIN_EVENT_WATCHDOG_NONE = 0,
     VIR_DOMAIN_EVENT_WATCHDOG_PAUSE,
     VIR_DOMAIN_EVENT_WATCHDOG_RESET,
     VIR_DOMAIN_EVENT_WATCHDOG_POWEROFF,
     VIR_DOMAIN_EVENT_WATCHDOG_SHUTDOWN,
     VIR_DOMAIN_EVENT_WATCHDOG_DEBUG,
 } virDomainEventWatchdogAction;

Thus there is a new callback definition for this event type

 typedef void (*virConnectDomainEventWatchdogCallback)(virConnectPtr conn,
                                                       virDomainPtr dom,
                                                       int action,
                                                       void *opaque);

* daemon/remote.c: Dispatch watchdog events to client
* examples/domain-events/events-c/event-test.c: Watch for
  watchdog events
* include/libvirt/libvirt.h.in: Define new watchdg event ID
  and callback signature
* src/conf/domain_event.c, src/conf/domain_event.h,
  src/libvirt_private.syms: Extend API to handle watchdog events
* src/qemu/qemu_driver.c: Connect to the QEMU monitor event
  for watchdogs and emit a libvirt watchdog event
* src/remote/remote_driver.c: Receive and dispatch watchdog
  events to application
* src/remote/remote_protocol.x: Wire protocol definition for
  watchdog events
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h,
  src/qemu/qemu_monitor_json.c: Watch for WATCHDOG event
  from QEMU monitor
This commit is contained in:
Daniel P. Berrange
2010-03-18 19:07:48 +00:00
parent 32e6ac9c26
commit c5728cd618
16 changed files with 252 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
examples/domain-events/events-c/event-test.c
View File

@@ -193,6 +193,17 @@ static int myDomainEventRTCChangeCallback(virConnectPtr conn ATTRIBUTE_UNUSED,
return 0;
}
static int myDomainEventWatchdogCallback(virConnectPtr conn ATTRIBUTE_UNUSED,
virDomainPtr dom,
int action,
void *opaque ATTRIBUTE_UNUSED)
{
printf("%s EVENT: Domain %s(%d) watchdog action=%d\n", __func__, virDomainGetName(dom),
virDomainGetID(dom), action);
return 0;
}
static void myFreeFunc(void *opaque)
{
char *str = opaque;
@@ -312,6 +323,7 @@ int main(int argc, char **argv)
int callback2ret = -1;
int callback3ret = -1;
int callback4ret = -1;
int callback5ret = -1;
struct sigaction action_stop = {
.sa_handler = stop
@@ -359,11 +371,17 @@ int main(int argc, char **argv)
VIR_DOMAIN_EVENT_ID_RTC_CHANGE,
VIR_DOMAIN_EVENT_CALLBACK(myDomainEventRTCChangeCallback),
strdup("callback rtcchange"), myFreeFunc);
callback5ret = virConnectDomainEventRegisterAny(dconn,
NULL,
VIR_DOMAIN_EVENT_ID_WATCHDOG,
VIR_DOMAIN_EVENT_CALLBACK(myDomainEventWatchdogCallback),
strdup("callback watchdog"), myFreeFunc);
if ((callback1ret != -1) &&
(callback2ret != -1) &&
(callback3ret != -1) &&
(callback4ret != -1)) {
(callback4ret != -1) &&
(callback5ret != -1)) {
while(run) {
struct pollfd pfd = { .fd = h_fd,
.events = h_event,
@@ -403,7 +421,7 @@ int main(int argc, char **argv)
virConnectDomainEventDeregisterAny(dconn, callback2ret);
virConnectDomainEventDeregisterAny(dconn, callback3ret);
virConnectDomainEventDeregisterAny(dconn, callback4ret);
virConnectDomainEventDeregisterAny(dconn, callback5ret);
}
DEBUG0("Closing connection");