virtual void init()
{
if (mInotifyFd == -1)
{
mInotifyFd = inotify_init1(IN_CLOEXEC);
if (mInotifyFd == -1)
{
rtLogWarn("hotplug disabled: %s", getSystemError(errno).c_str());
}
else
{
rtLogDebug("initializing inotify, adding watch: %s", kDevInput);
mWatchFd = inotify_add_watch(mInotifyFd, kDevInput, (IN_DELETE | IN_CREATE));
if (mWatchFd == -1)
{
rtLogWarn("hotplug disabled: %s", getSystemError(errno).c_str());
}
else
{
rtLogDebug("adding change notify descriptor: %d to poll list", mInotifyFd);
pollfd p;
p.fd = mInotifyFd;
p.events = (POLLIN | POLLERR);
p.revents = 0;
mFds.push_back(p);
}
}
}
registerDevices(getKeyboardDevices());
registerDevices(getMouseDevices());
}
void RegionDumper::init(const string& path, size_t offset)
{
m_file = fopen(path.c_str(), "rb");
if (m_file == NULL) THROW(string("Failed to open file ")+path+" - " + getSystemError());
if (offset > 0) {
int ret = fseek(m_file, offset, SEEK_SET);
if (ret != 0) THROW(string("Failed to seek file ")+path+" - " + getSystemError());
}
}
virtual bool next(uint32_t timeoutMillis)
{
// reset event state
for (poll_list::iterator i = mFds.begin(); i != mFds.end(); ++i)
{
i->events = POLLIN | POLLERR;
i->revents = 0;
}
int n = poll(&mFds[0], static_cast<int>(mFds.size()), timeoutMillis);
if (n < 0)
{
int err = errno;
if (err == EINTR)
{
rtLogInfo("poll was interrupted by EINTR?");
}
else
{
rtLogError("error processing events: %s", getSystemError(err).c_str());
return false;
}
}
bool deviceListChanged = false;
for (poll_list::iterator i = mFds.begin(); i != mFds.end(); ++i)
{
if (i->fd == -1)
{
rtLogWarn("invalid file descriptor");
continue;
}
if (!(i->revents & POLLIN))
continue;
if (i->fd == mInotifyFd)
deviceListChanged = processChangeNotify(*i);
else
processDescriptor(*i);
}
if (deviceListChanged)
{
rtLogInfo("device list change notify");
close(false);
init();
}
return true;
}
