Exemplo n.º 1
0
bool Debounce(void) {
    if (fpsTimeLast.isElapsed(debounceTimeout.totalMicroseconds())) {
        fpsTimeLast.update();
        return true;
    } else {
        return false;
    }
}
Exemplo n.º 2
0
bool Debounce(int dtime) {
    const Poco::Timespan TimeOut(0, 1000*dtime);
    if (fpsTimeLast.isElapsed(TimeOut.totalMicroseconds())) {
        fpsTimeLast.update();
        return true;
    } else {
        return false;
    }
}
Exemplo n.º 3
0
int ICMPSocketImpl::receiveFrom(void*, int, SocketAddress& address, int flags)
{
	int maxPacketSize = _icmpPacket.maxPacketSize();
	unsigned char* buffer = new unsigned char[maxPacketSize];

	try
	{
		Poco::Timestamp ts;
		do
		{
			if (ts.isElapsed(_timeout)) 
			{
				// This guards against a possible DoS attack, where sending
				// fake ping responses will cause an endless loop.
				throw TimeoutException();
			}
			SocketImpl::receiveFrom(buffer, maxPacketSize, address, flags);
		}
		while (!_icmpPacket.validReplyID(buffer, maxPacketSize));
	}
	catch (TimeoutException&)
	{
		delete [] buffer;			
		throw;
	}
	catch (Exception&)
	{
		std::string err = _icmpPacket.errorDescription(buffer, maxPacketSize);
		delete [] buffer;
		if (!err.empty()) 
			throw ICMPException(err);
		else 
			throw;
	}

	struct timeval then = _icmpPacket.time(buffer, maxPacketSize);
	struct timeval now  = _icmpPacket.time();

	int elapsed	= (((now.tv_sec * 1000000) + now.tv_usec) - ((then.tv_sec * 1000000) + then.tv_usec))/1000;

	delete[] buffer;
	return elapsed;
}
Exemplo n.º 4
0
	void run()
	{
		Poco::Timestamp lastScan;
		ItemInfoMap entries;
		scan(entries);

		while (!_stopped)
		{
			struct timespec timeout;
			timeout.tv_sec = 0;
			timeout.tv_nsec = 200000000;
			unsigned eventFilter = NOTE_WRITE;
			struct kevent event;
			struct kevent eventData;
			EV_SET(&event, _dirFD, EVFILT_VNODE, EV_ADD | EV_CLEAR, eventFilter, 0, 0);
			int nEvents = kevent(_queueFD, &event, 1, &eventData, 1, &timeout);
			if (nEvents < 0 || eventData.flags == EV_ERROR)
			{
				try
				{
					FileImpl::handleLastErrorImpl(owner().directory().path());
				}
				catch (Poco::Exception& exc)
				{
					owner().scanError(&owner(), exc);
				}
			}
			else if (nEvents > 0 || ((owner().eventMask() & DirectoryWatcher::DW_ITEM_MODIFIED) && lastScan.isElapsed(owner().scanInterval()*1000000)))
			{
				ItemInfoMap newEntries;
				scan(newEntries);
				compare(entries, newEntries);
				std::swap(entries, newEntries);
				lastScan.update();
			}
		}
	}