static void
HandleWatchRemove(DBusThread* aDbt)
{
int removeFD;
unsigned int flags;
if (read(aDbt->mControlFdR.get(), &removeFD, sizeof(int)) < 0) {
LOG("Cannot read DBus watch remove descriptor data from socket!\n");
return;
}
if (read(aDbt->mControlFdR.get(), &flags, sizeof(unsigned int)) < 0) {
LOG("Cannot read DBus watch remove flag data from socket!\n");
return;
}
short events = DBusFlagsToUnixEvents(flags);
pollfd p;
p.fd = removeFD;
p.events = events;
int index = aDbt->mPollData.IndexOf(p, 0, PollFdComparator());
// There are times where removes can be requested for watches that
// haven't been added (for example, whenever gecko comes up after
// adapters have already been enabled), so check to make sure we're
// using the watch in the first place
if (index < 0) {
LOG("DBus requested watch removal of non-existant socket, ignoring...");
return;
}
aDbt->mPollData.RemoveElementAt(index);
// DBusWatch pointers are maintained by DBus, so we won't leak by
// removing.
aDbt->mWatchData.RemoveElementAt(index);
}
static void
HandleWatchAdd(DBusThread* aDbt)
{
DBusWatch *watch;
int newFD;
unsigned int flags;
if (read(aDbt->mControlFdR.get(), &newFD, sizeof(int)) < 0) {
LOG("Cannot read DBus watch add descriptor data from socket!\n");
return;
}
if (read(aDbt->mControlFdR.get(), &flags, sizeof(unsigned int)) < 0) {
LOG("Cannot read DBus watch add flag data from socket!\n");
return;
}
if (read(aDbt->mControlFdR.get(), &watch, sizeof(DBusWatch *)) < 0) {
LOG("Cannot read DBus watch add watch data from socket!\n");
return;
}
short events = DBusFlagsToUnixEvents(flags);
pollfd p;
p.fd = newFD;
p.revents = 0;
p.events = events;
if (aDbt->mPollData.Contains(p, PollFdComparator())) return;
aDbt->mPollData.AppendElement(p);
aDbt->mWatchData.AppendElement(watch);
}
void
DBusWatcher::HandleWatchAdd()
{
int fd;
ssize_t res = TEMP_FAILURE_RETRY(read(mControlFdR.get(), &fd, sizeof(fd)));
if (res < 0) {
LOG("Cannot read DBus watch add descriptor data from socket!\n");
return;
}
unsigned int flags;
res = TEMP_FAILURE_RETRY(read(mControlFdR.get(), &flags, sizeof(flags)));
if (res < 0) {
LOG("Cannot read DBus watch add flag data from socket!\n");
return;
}
DBusWatch* watch;
res = TEMP_FAILURE_RETRY(read(mControlFdR.get(), &watch, sizeof(watch)));
if (res < 0) {
LOG("Cannot read DBus watch add watch data from socket!\n");
return;
}
struct pollfd p = {
fd, // .fd
DBusFlagsToUnixEvents(flags), // .events
0 // .revents
};
if (mPollData.Contains(p, PollFdComparator())) {
return;
}
mPollData.AppendElement(p);
mWatchData.AppendElement(watch);
}
void
DBusWatcher::HandleWatchRemove()
{
int fd;
ssize_t res = TEMP_FAILURE_RETRY(read(mControlFdR.get(), &fd, sizeof(fd)));
if (res < 0) {
LOG("Cannot read DBus watch remove descriptor data from socket!\n");
return;
}
unsigned int flags;
res = TEMP_FAILURE_RETRY(read(mControlFdR.get(), &flags, sizeof(flags)));
if (res < 0) {
LOG("Cannot read DBus watch remove flag data from socket!\n");
return;
}
struct pollfd p = {
fd, // .fd
DBusFlagsToUnixEvents(flags), // .events
0 // .revents
};
int index = mPollData.IndexOf(p, 0, PollFdComparator());
// There are times where removes can be requested for watches that
// haven't been added (for example, whenever gecko comes up after
// adapters have already been enabled), so check to make sure we're
// using the watch in the first place
if (index < 0) {
LOG("DBus requested watch removal of non-existant socket, ignoring...");
return;
}
mPollData.RemoveElementAt(index);
// DBusWatch pointers are maintained by DBus, so we won't leak by
// removing.
mWatchData.RemoveElementAt(index);
}
