void
DBusThread::EventLoop()
{
dbus_connection_set_watch_functions(mConnection, AddWatch,
RemoveWatch, ToggleWatch, this, NULL);
dbus_connection_set_wakeup_main_function(mConnection, DBusWakeup, this, NULL);
#ifdef DEBUG
LOG("DBus Event Loop Starting\n");
#endif
while (1) {
poll(mPollData.Elements(), mPollData.Length(), -1);
for (uint32_t i = 0; i < mPollData.Length(); i++) {
if (!mPollData[i].revents) {
continue;
}
if (mPollData[i].fd == mControlFdR.get()) {
char data;
while (recv(mControlFdR.get(), &data, sizeof(char), MSG_DONTWAIT)
!= -1) {
switch (data) {
case DBUS_EVENT_LOOP_EXIT:
#ifdef DEBUG
LOG("DBus Event Loop Exiting\n");
#endif
dbus_connection_set_watch_functions(mConnection,
NULL, NULL, NULL, NULL, NULL);
return;
case DBUS_EVENT_LOOP_ADD:
HandleWatchAdd(this);
break;
case DBUS_EVENT_LOOP_REMOVE:
HandleWatchRemove(this);
break;
case DBUS_EVENT_LOOP_WAKEUP:
// noop
break;
}
}
} else {
short events = mPollData[i].revents;
unsigned int flags = UnixEventsToDBusFlags(events);
dbus_watch_handle(mWatchData[i], flags);
mPollData[i].revents = 0;
// Break at this point since we don't know if the operation
// was destructive
break;
}
}
while (dbus_connection_dispatch(mConnection) ==
DBUS_DISPATCH_DATA_REMAINS)
{}
}
}
NS_IMETHOD Run()
{
MOZ_ASSERT(!NS_IsMainThread());
bool exitThread = false;
while (!exitThread) {
int res = TEMP_FAILURE_RETRY(poll(mConnection->mPollData.Elements(),
mConnection->mPollData.Length(),
-1));
NS_ENSURE_TRUE(res > 0, NS_OK);
nsTArray<pollfd>::size_type i = 0;
while (i < mConnection->mPollData.Length()) {
if (mConnection->mPollData[i].revents == POLLIN) {
if (mConnection->mPollData[i].fd == mConnection->mControlFdR.get()) {
char data;
res = TEMP_FAILURE_RETRY(read(mConnection->mControlFdR.get(), &data, sizeof(data)));
NS_ENSURE_TRUE(res > 0, NS_OK);
switch (data) {
case DBUS_EVENT_LOOP_EXIT:
exitThread = true;
break;
case DBUS_EVENT_LOOP_ADD:
HandleWatchAdd(mConnection);
break;
case DBUS_EVENT_LOOP_REMOVE:
HandleWatchRemove(mConnection);
// don't increment i, or we'll skip one element
continue;
case DBUS_EVENT_LOOP_WAKEUP:
NS_ProcessPendingEvents(NS_GetCurrentThread(),
PR_INTERVAL_NO_TIMEOUT);
break;
default:
#if DEBUG
nsCString warning("unknown command ");
warning.AppendInt(data);
NS_WARNING(warning.get());
#endif
break;
}
} else {
short events = mConnection->mPollData[i].revents;
unsigned int flags = UnixEventsToDBusFlags(events);
dbus_watch_handle(mConnection->mWatchData[i], flags);
mConnection->mPollData[i].revents = 0;
// Break at this point since we don't know if the operation
// was destructive
break;
}
while (dbus_connection_dispatch(mConnection->GetConnection()) ==
DBUS_DISPATCH_DATA_REMAINS)
{}
}
++i;
}
}
return NS_OK;
}
bool
DBusWatcher::Poll()
{
int res = TEMP_FAILURE_RETRY(poll(mPollData.Elements(),
mPollData.Length(), -1));
NS_ENSURE_TRUE(res > 0, false);
bool continueThread = true;
nsTArray<pollfd>::size_type i = 0;
while (i < mPollData.Length()) {
if (mPollData[i].revents == POLLIN) {
if (mPollData[i].fd == mControlFdR.get()) {
char data;
res = TEMP_FAILURE_RETRY(read(mControlFdR.get(), &data, sizeof(data)));
NS_ENSURE_TRUE(res > 0, false);
switch (data) {
case DBUS_EVENT_LOOP_EXIT:
continueThread = false;
break;
case DBUS_EVENT_LOOP_ADD:
HandleWatchAdd();
break;
case DBUS_EVENT_LOOP_REMOVE:
HandleWatchRemove();
// don't increment i, or we'll skip one element
continue;
case DBUS_EVENT_LOOP_WAKEUP:
NS_ProcessPendingEvents(NS_GetCurrentThread(),
PR_INTERVAL_NO_TIMEOUT);
break;
default:
#if DEBUG
nsCString warning("unknown command ");
warning.AppendInt(data);
NS_WARNING(warning.get());
#endif
break;
}
} else {
short events = mPollData[i].revents;
mPollData[i].revents = 0;
dbus_watch_handle(mWatchData[i], UnixEventsToDBusFlags(events));
DBusDispatchStatus dbusDispatchStatus;
do {
dbusDispatchStatus = dbus_connection_dispatch(GetConnection());
} while (dbusDispatchStatus == DBUS_DISPATCH_DATA_REMAINS);
// Break at this point since we don't know if the operation
// was destructive
break;
}
}
++i;
}
return continueThread;
}
