void run() {
// initialise the LCD and then the network
initialiseLcd();
initialiseNetwork();
// do a DNS lookup for the server and read the index file
lookupServerAddress();
readPictureIndex();
// give a small delay so that the user can see the startup info
writeLine("Starting in 5 seconds");
MillisecondTimer::delay(5000);
// go into an infinite loop showing the pictures with a 10 second
// delay between each one
for(;;) {
for(auto it=_pictureUriList.begin();it!=_pictureUriList.end();it++) {
showPicture(*it);
MillisecondTimer::delay(10000);
}
}
}
void readPictureIndex() {
writeLine("Connecting to server...");
// create the connection
MyTcpClientConnection *ptr;
if(!_net->tcpConnect<MyTcpClientConnection>(_serverAddress,WEB_SERVER_PORT,ptr))
error("Failed to connect to web server");
{
// manage the connection pointer in a scoped_ptr so it's automatically deleted (and closed)
// when it goes out of scope
scoped_ptr<MyTcpClientConnection> conn(ptr);
HttpClient httpClient(*conn);
// set the parameters for the HTTP GET
httpClient.setUri(PICTURE_INDEX_URI);
httpClient.setHost(WEB_SERVER);
httpClient.setVersion(HttpVersion::HTTP_1_0);
// send it
writeLine("Sending request for index...");
if(!httpClient.sendRequest())
error("Failed to send the request to the server");
// read the response lines up to max of 200 per line
TcpTextLineReceiver lineReceiver(200);
writeLine("Reading index...");
_pictureUriList.clear();
for(;;) {
if(!lineReceiver.add(*conn))
error("Failed to index data");
if(lineReceiver.ready()) {
if(!strcasecmp(lineReceiver.str().c_str(),"#end"))
break;
_pictureUriList.push_front(lineReceiver.str());
lineReceiver.reset();
}
}
}
char buf[100];
StringUtil::modp_uitoa10(_pictureUriList.size(),buf);
strcat(buf," images indexed");
writeLine(buf);
}
inline void load(
Archive & ar,
STD::slist<U, Allocator> &t,
const unsigned int file_version
){
// retrieve number of elements
t.clear();
// retrieve number of elements
unsigned int count;
ar >> BOOST_SERIALIZATION_NVP(count);
if(0 == count)
return;
boost::serialization::stl::stack_construct<Archive, U> u(ar);
ar >> boost::serialization::make_nvp("item", u.reference());
t.push_front(u.reference());
BOOST_DEDUCED_TYPENAME BOOST_STD_EXTENSION_NAMESPACE::slist<U, Allocator>::iterator last;
last = t.begin();
while(--count > 0){
boost::serialization::stl::stack_construct<Archive, U> u(ar);
ar >> boost::serialization::make_nvp("item", u.reference());
last = t.insert_after(last, u.reference());
}
}
