static int
virLogFormatString(char **msg,
int linenr,
const char *funcname,
virLogPriority priority,
const char *str)
{
int ret;
/*
* Be careful when changing the following log message formatting, we rely
* on it when stripping libvirt debug messages from qemu log files. So when
* changing this, you might also need to change the code there.
* virLogFormatString() function name is mentioned there so it's sufficient
* to just grep for it to find the right place.
*/
if ((funcname != NULL)) {
ret = virAsprintfQuiet(msg, "%llu: %s : %s:%d : %s\n",
virThreadSelfID(), virLogPriorityString(priority),
funcname, linenr, str);
} else {
ret = virAsprintfQuiet(msg, "%llu: %s : %s\n",
virThreadSelfID(), virLogPriorityString(priority),
str);
}
return ret;
}
void
virThreadJobSet(const char *caller)
{
const char *worker;
if (!caller || virThreadJobInitialize() < 0)
return;
if (virThreadLocalSet(&virThreadJobName, (void *) caller) < 0)
virReportSystemError(errno,
_("cannot set current job to %s"),
caller);
if ((worker = virThreadLocalGet(&virThreadJobWorker))) {
VIR_DEBUG("Thread %llu (%s) is now running job %s",
virThreadSelfID(), worker, caller);
} else {
VIR_DEBUG("Thread %llu is now running job %s",
virThreadSelfID(), caller);
}
}
void
virThreadJobSetWorker(const char *worker)
{
if (!worker || virThreadJobInitialize() < 0)
return;
if (virThreadLocalSet(&virThreadJobWorker, (void *) worker) < 0)
virReportSystemError(errno,
_("cannot set worker name to %s"),
worker);
VIR_DEBUG("Thread %llu is running worker %s", virThreadSelfID(), worker);
}
void
virThreadJobClear(int rv)
{
const char *old;
const char *worker;
if (virThreadJobInitialize() < 0)
return;
if (!(old = virThreadLocalGet(&virThreadJobName)))
return;
if (virThreadLocalSet(&virThreadJobName, NULL) < 0)
virReportSystemError(errno, "%s", _("cannot reset current job"));
if ((worker = virThreadLocalGet(&virThreadJobWorker))) {
VIR_DEBUG("Thread %llu (%s) finished job %s with ret=%d",
virThreadSelfID(), worker, old, rv);
} else {
VIR_DEBUG("Thread %llu finished job %s with ret=%d",
virThreadSelfID(), old, rv);
}
}
/*
* obj must be locked before calling, libxlDriverPrivatePtr must NOT be locked
*
* This must be called by anything that will change the VM state
* in any way
*
* Upon successful return, the object will have its ref count increased,
* successful calls must be followed by EndJob eventually
*/
int
libxlDomainObjBeginJob(libxlDriverPrivatePtr driver ATTRIBUTE_UNUSED,
virDomainObjPtr obj,
enum libxlDomainJob job)
{
libxlDomainObjPrivatePtr priv = obj->privateData;
unsigned long long now;
unsigned long long then;
if (virTimeMillisNow(&now) < 0)
return -1;
then = now + LIBXL_JOB_WAIT_TIME;
virObjectRef(obj);
while (priv->job.active) {
VIR_DEBUG("Wait normal job condition for starting job: %s",
libxlDomainJobTypeToString(job));
if (virCondWaitUntil(&priv->job.cond, &obj->parent.lock, then) < 0)
goto error;
}
libxlDomainObjResetJob(priv);
VIR_DEBUG("Starting job: %s", libxlDomainJobTypeToString(job));
priv->job.active = job;
priv->job.owner = virThreadSelfID();
priv->job.started = now;
priv->job.current->type = VIR_DOMAIN_JOB_UNBOUNDED;
return 0;
error:
VIR_WARN("Cannot start job (%s) for domain %s;"
" current job is (%s) owned by (%d)",
libxlDomainJobTypeToString(job),
obj->def->name,
libxlDomainJobTypeToString(priv->job.active),
priv->job.owner);
if (errno == ETIMEDOUT)
virReportError(VIR_ERR_OPERATION_TIMEOUT,
"%s", _("cannot acquire state change lock"));
else
virReportSystemError(errno,
"%s", _("cannot acquire job mutex"));
virObjectUnref(obj);
return -1;
}
