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Add domainCoreDump to libxl driver

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v2:
* incorporated Jim Fehlig's review
This commit is contained in:
Markus Groß 2011-05-30 11:53:01 +02:00 committed by Jim Fehlig
parent 648b521e0d
commit e69b192102
1 changed files with 95 additions and 0 deletions
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95
src/libxl/libxl_driver.c
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@ -1633,6 +1633,100 @@ libxlDomainGetState(virDomainPtr dom,
return ret;
}
static int
libxlDomainCoreDump(virDomainPtr dom, const char *to, int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDomainObjPrivatePtr priv;
virDomainObjPtr vm;
virDomainEventPtr event = NULL;
bool paused = false;
int ret = -1;
virCheckFlags(VIR_DUMP_LIVE | VIR_DUMP_CRASH, -1);
libxlDriverLock(driver);
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
libxlDriverUnlock(driver);
if (!vm) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(dom->uuid, uuidstr);
libxlError(VIR_ERR_NO_DOMAIN,
_("No domain with matching uuid '%s'"), uuidstr);
goto cleanup;
}
if (!virDomainObjIsActive(vm)) {
libxlError(VIR_ERR_OPERATION_INVALID, "%s", _("Domain is not running"));
goto cleanup;
}
priv = vm->privateData;
if (!(flags & VIR_DUMP_LIVE) &&
virDomainObjGetState(vm, NULL) == VIR_DOMAIN_RUNNING) {
if (libxl_domain_pause(&priv->ctx, dom->id) != 0) {
libxlError(VIR_ERR_INTERNAL_ERROR,
_("Before dumping core, failed to suspend domain '%d'"
" with libxenlight"),
dom->id);
goto cleanup;
}
virDomainObjSetState(vm, VIR_DOMAIN_PAUSED, VIR_DOMAIN_PAUSED_DUMP);
paused = true;
}
if (libxl_domain_core_dump(&priv->ctx, dom->id, to) != 0) {
libxlError(VIR_ERR_INTERNAL_ERROR,
_("Failed to dump core of domain '%d' with libxenlight"),
dom->id);
goto cleanup_unpause;
}
libxlDriverLock(driver);
if (flags & VIR_DUMP_CRASH) {
if (libxlVmReap(driver, vm, 1, VIR_DOMAIN_SHUTOFF_CRASHED) != 0) {
libxlError(VIR_ERR_INTERNAL_ERROR,
_("Failed to destroy domain '%d'"), dom->id);
goto cleanup_unlock;
}
event = virDomainEventNewFromObj(vm, VIR_DOMAIN_EVENT_STOPPED,
VIR_DOMAIN_EVENT_STOPPED_CRASHED);
}
if ((flags & VIR_DUMP_CRASH) && !vm->persistent) {
virDomainRemoveInactive(&driver->domains, vm);
vm = NULL;
}
ret = 0;
cleanup_unlock:
libxlDriverUnlock(driver);
cleanup_unpause:
if (virDomainObjIsActive(vm) && paused) {
if (libxl_domain_unpause(&priv->ctx, dom->id) != 0) {
libxlError(VIR_ERR_INTERNAL_ERROR,
_("After dumping core, failed to resume domain '%d' with"
" libxenlight"), dom->id);
} else {
virDomainObjSetState(vm, VIR_DOMAIN_RUNNING,
VIR_DOMAIN_RUNNING_UNPAUSED);
}
}
cleanup:
if (vm)
virDomainObjUnlock(vm);
if (event) {
libxlDriverLock(driver);
libxlDomainEventQueue(driver, event);
libxlDriverUnlock(driver);
}
return ret;
}
static int
libxlDomainSetVcpusFlags(virDomainPtr dom, unsigned int nvcpus,
unsigned int flags)
@ -3265,6 +3359,7 @@ static virDriver libxlDriver = {
.domainSetMemoryFlags = libxlDomainSetMemoryFlags, /* 0.9.0 */
.domainGetInfo = libxlDomainGetInfo, /* 0.9.0 */
.domainGetState = libxlDomainGetState, /* 0.9.2 */
.domainCoreDump = libxlDomainCoreDump, /* 0.9.2 */
.domainSetVcpus = libxlDomainSetVcpus, /* 0.9.0 */
.domainSetVcpusFlags = libxlDomainSetVcpusFlags, /* 0.9.0 */
.domainGetVcpusFlags = libxlDomainGetVcpusFlags, /* 0.9.0 */