bool Notification::serviceAvailable(NotificationType type)
{
if (type < 0 || type >= END_OF_TYPE)
return false;
NotificationService *service = notify_service[type];
if (!service)
return false;
return service->serviceAvailable();
}
status_t
NotificationManager::RemoveListener(const char* serviceName,
const KMessage* eventSpecifier, NotificationListener& listener)
{
MutexLocker locker(fLock);
NotificationService* service = _ServiceFor(serviceName);
if (service == NULL)
return B_NAME_NOT_FOUND;
BReference<NotificationService> reference(service);
locker.Unlock();
return service->RemoveListener(eventSpecifier, listener);
}
status_t
NotificationManager::RegisterService(NotificationService& service)
{
MutexLocker _(fLock);
if (_ServiceFor(service.Name()))
return B_NAME_IN_USE;
status_t status = fServiceHash.Insert(&service);
if (status == B_OK)
service.AcquireReference();
return status;
}
void
NotificationManager::UnregisterService(NotificationService& service)
{
MutexLocker _(fLock);
fServiceHash.Remove(&service);
service.ReleaseReference();
}
void
SystemProfiler::EventOccurred(NotificationService& service,
const KMessage* event)
{
int32 eventCode;
if (event->FindInt32("event", &eventCode) != B_OK)
return;
if (strcmp(service.Name(), "teams") == 0) {
Team* team = (Team*)event->GetPointer("teamStruct", NULL);
if (team == NULL)
return;
switch (eventCode) {
case TEAM_ADDED:
if (fTeamNotificationsEnabled)
_TeamAdded(team);
break;
case TEAM_REMOVED:
if (team->id == fTeam) {
// The profiling team is gone -- uninstall the profiler!
InterruptsSpinLocker locker(sProfilerLock);
if (sProfiler != this)
return;
sProfiler = NULL;
locker.Unlock();
ReleaseReference();
return;
}
// When we're still doing the initial team list scan, we are
// also interested in removals that happened to teams we have
// already seen.
if (fTeamNotificationsEnabled
|| team->serial_number <= fLastTeamAddedSerialNumber) {
_TeamRemoved(team);
}
break;
case TEAM_EXEC:
if (fTeamNotificationsEnabled)
_TeamExec(team);
break;
}
} else if (strcmp(service.Name(), "threads") == 0) {
Thread* thread = (Thread*)event->GetPointer("threadStruct", NULL);
if (thread == NULL)
return;
switch (eventCode) {
case THREAD_ADDED:
if (fThreadNotificationsEnabled)
_ThreadAdded(thread);
break;
case THREAD_REMOVED:
// When we're still doing the initial thread list scan, we are
// also interested in removals that happened to threads we have
// already seen.
if (fThreadNotificationsEnabled
|| thread->serial_number <= fLastThreadAddedSerialNumber) {
_ThreadRemoved(thread);
}
break;
}
} else if (strcmp(service.Name(), "images") == 0) {
if (!fImageNotificationsEnabled)
return;
struct image* image = (struct image*)event->GetPointer(
"imageStruct", NULL);
if (image == NULL)
return;
switch (eventCode) {
case IMAGE_ADDED:
_ImageAdded(image);
break;
case IMAGE_REMOVED:
_ImageRemoved(image);
break;
}
} else if (strcmp(service.Name(), "I/O") == 0) {
if (!fIONotificationsEnabled)
return;
IOScheduler* scheduler = (IOScheduler*)event->GetPointer("scheduler",
NULL);
if (scheduler == NULL)
return;
IORequest* request = (IORequest*)event->GetPointer("request", NULL);
IOOperation* operation = (IOOperation*)event->GetPointer("operation",
NULL);
switch (eventCode) {
case IO_SCHEDULER_ADDED:
_IOSchedulerAdded(scheduler);
break;
case IO_SCHEDULER_REMOVED:
_IOSchedulerRemoved(scheduler);
break;
case IO_SCHEDULER_REQUEST_SCHEDULED:
_IORequestScheduled(scheduler, request);
break;
case IO_SCHEDULER_REQUEST_FINISHED:
_IORequestFinished(scheduler, request);
break;
case IO_SCHEDULER_OPERATION_STARTED:
_IOOperationStarted(scheduler, request, operation);
break;
case IO_SCHEDULER_OPERATION_FINISHED:
_IOOperationFinished(scheduler, request, operation);
break;
}
}
_MaybeNotifyProfilerThread();
}