void handleInput(char *comm, size_t size) {
if (strncmp(comm, "ECHO", 4) == 0) {
sendEcho(comm, size - 5);
} else if (strncmp(comm, "LIST", 4) == 0) {
sendList();
} else if (strncmp(comm, "2ALL", 4) == 0) {
sendToAll(comm, size - 5);
} else if (strncmp(comm, "2ONE", 4) == 0) {
strtok(comm, " ");
char *str = strtok(comm + 5, " ");
if (str == NULL) {
fprintf(stderr, "Wrong number of arguments\n");
return;
}
int id = atoi(str);
str = strtok(NULL, " ");
size_t size = 0;
if (str != NULL)
size = strlen(str);
sendToOne(str, id, size);
} else if (strncmp(comm, "FRIENDS", 7) == 0) {
sendFriends(comm, size - 8);
} else if (strncmp(comm, "ADD", 3) == 0) {
sendAddFriends(comm, size - 4);
} else if (strncmp(comm, "DEL", 3) == 0) {
sendDelFriends(comm, size - 4);
} else if (strncmp(comm, "2FRIENDS", 8) == 0) {
sendToFriends(comm, size - 9);
} else if (strncmp(comm, "STOP", 4) == 0) {
exit(0);
} else {
printf("Wrong command -> %s\n", comm);
}
}
TennisServer::TennisServer(QObject *parent)
: QObject(parent), l2capServer(0), clientSocket(0), stream(0), lagReplyTimeout(0)
{
elapsed.start();
ballElapsed.start();
lagTimer.setInterval(1000);
connect(&lagTimer, SIGNAL(timeout()), this, SLOT(sendEcho()));
}
MojErr testQueue()
{
// send a high-latency request and build up a service-side queue
const MojChar* echoStr = _T("{\"hello\":\"world\"}");
MojObject expectedResponse;
MojErr err = formatEchoResponse(echoStr, expectedResponse);
MojTestErrCheck(err);
err = sendEcho(echoStr, expectedResponse, _T("slowecho"));
MojTestErrCheck(err);
for (int i = 0; i < 10; i++) {
err = sendEcho(echoStr, expectedResponse, _T("echo"));
MojTestErrCheck(err);
}
err = receiveResponses();
MojTestErrCheck(err);
return MojErrNone;
}
/*
* This function is specific to this example.
* Your own code will likely do something different
*/
void EchoWindow::createGUI()
{
lineEdit = new QLineEdit;
label = new QLabel;
label->setFrameStyle(QFrame::Box | QFrame::Plain);
button = new QPushButton(tr("Send Message"));
statusBar = new QStatusBar( this );
connect(lineEdit, SIGNAL(editingFinished()),
this, SLOT(sendEcho()));
connect(button, SIGNAL(clicked()),
this, SLOT(sendEcho()));
layout = new QGridLayout;
layout->addWidget(new QLabel(tr("Message:")), 0, 0);
layout->addWidget(lineEdit, 0, 1);
layout->addWidget(new QLabel(tr("Answer:")), 1, 0);
layout->addWidget(label, 1, 1);
layout->addWidget(button, 2, 1, Qt::AlignRight);
layout->addWidget(statusBar, 3, 0, 1, 2);
layout->setSizeConstraint(QLayout::SetFixedSize);
}
int EchoWindow::qt_metacall(QMetaObject::Call _c, int _id, void **_a)
{
_id = QWidget::qt_metacall(_c, _id, _a);
if (_id < 0)
return _id;
if (_c == QMetaObject::InvokeMetaMethod) {
switch (_id) {
case 0: sendEcho(); break;
default: ;
}
_id -= 1;
}
return _id;
}
MojErr testInvalidMethod()
{
MojObject expectedResponse;
MojErr err = formatErrResponse(MojErrMethodNotFound, expectedResponse);
MojTestErrCheck(err);
// send echo with invalid method
err = sendEcho(_T("{\"hello\":\"world\"}"), expectedResponse, _T("bogusmethod"));
MojTestErrCheck(err);
err = receiveResponses();
MojTestErrCheck(err);
return MojErrNone;
}
MojErr testInvalidPayload()
{
// send an invaild error request and verify error code response
MojObject expectedResponse;
MojErr err = formatErrResponse(MojErrJsonParsePropName, expectedResponse);
MojTestErrCheck(err);
// send echo with invalid json
err = sendEcho(_T("{{\"hello\":\"world\"}"), expectedResponse, _T("echo"));
MojTestErrCheck(err);
err = receiveResponses();
MojTestErrCheck(err);
return MojErrNone;
}
MojErr testEchoRequest()
{
// send a valid echo request and verify response
const MojChar* echoStr = _T("{\"hello\":\"world\"}");
MojObject expectedResponse;
MojErr err = formatEchoResponse(echoStr, expectedResponse);
MojTestErrCheck(err);
err = sendEcho(echoStr, expectedResponse, _T("echo"));
MojTestErrCheck(err);
err = receiveResponses();
MojTestErrCheck(err);
return MojErrNone;
}
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
ui->statusBar->showMessage("Qt to Arduino HDLC command router example", 3000);
serial = new QSerialPort(this);
this->fillPortsInfo();
HDLC_qt* hdlc = HDLC_qt::instance();
QObject::connect(hdlc, SIGNAL(hdlcTransmitByte(QByteArray)),
this, SLOT(putChar(QByteArray)));
QObject::connect(hdlc, SIGNAL(hdlcTransmitByte(char)),
this, SLOT(putChar(char)));
QObject::connect(hdlc, SIGNAL(hdlcValidFrameReceived(QByteArray, quint16)),
this, SLOT(HDLC_CommandRouter(QByteArray, quint16)));
// All data coming from serial port (should go straight to HDLC validation)
QObject::connect(this, SIGNAL(dataReceived(QByteArray)),
hdlc, SLOT(charReceiver(QByteArray)));
// Allso echo chars HEX value
QObject::connect(this, SIGNAL(dataReceived(QByteArray)),
this, SLOT(print_hex_value(QByteArray)));
QObject::connect(this, SIGNAL(sendDataFrame(QByteArray, quint16)),
hdlc, SLOT(frameDecode(QByteArray, quint16)));
QObject::connect(ui->pushButton_connect, SIGNAL(clicked()),
this, SLOT(openSerialPort()));
QObject::connect(serial, SIGNAL(readyRead()),
this, SLOT(readData()));
QObject::connect(ui->dial, SIGNAL(valueChanged(int)),
this, SLOT(setServoPosition()) );
QObject::connect(ui->pushButton_echo, SIGNAL(clicked()),
this, SLOT(sendEcho()) );
QObject::connect(ui->pushButton_LED, SIGNAL(clicked()),
this, SLOT(toggleLED()) );
}
/**
* return value is sent directly to return value of main()
*/
static int
pingMainloop(int fd)
{
unsigned sent = 0;
unsigned recvd = 0;
double lastpingTime = 0; /* last time we sent out a ping */
double curPingTime; /* if we ping now, this is the timestamp of it */
double lastRecvTime = 0; /* last time we got a reply */
int recvErrors = 0;
if (options.verbose > 2) {
fprintf(stderr, "%s: mainloop(%d)\n", argv0, fd);
}
startTime = clock_get_dbl();
printf("GTPING %s (%s) packet version %d\n",
options.target,
options.targetip,
options.version);
lastRecvTime = startTime;
while (!sigintReceived) {
/* max time to wait for replies before checking if it's time
* to send another ping */
double timewait;
int n;
struct pollfd fds;
/* sent all we are going to send, and got all replies
* (either errors or good replies)
*/
if (options.count
&& (sent == options.count)
&& (sent == (recvd + recvErrors))) {
break;
}
/* time to send yet? */
curPingTime = clock_get_dbl();
/* if clock is not monotonic and time set backwards
* since last ping, start a new ping cycle */
if (curPingTime < lastpingTime) {
lastpingTime = curPingTime - options.interval - 0.001;
}
if (curPingTime > lastpingTime + options.interval) {
if (options.count && (curSeq == options.count)) {
if (lastRecvTime+options.wait < curPingTime) {
break;
}
} else if (0 <= sendEcho(fd, curSeq++)) {
sent++;
lastpingTime = curPingTime;
if (options.flood) {
printf(".");
fflush(stdout);
}
}
}
fds.fd = fd;
fds.events = POLLIN;
fds.revents = 0;
/* max waittime: until it's time to send the next one */
timewait = lastpingTime+options.interval - clock_get_dbl();
/* never wait more than an interval. this can happen if
* clock is not monotonic */
if (timewait > options.interval) {
timewait = options.interval;
}
/* this should never happen, should have been taken care of
* above. */
if (timewait < 0) {
timewait = 0;
}
/* leave room for overhead */
timewait *= 0.5;
switch ((n = poll(&fds, 1, (int)(timewait * 1000)))) {
case 1: /* read ready */
if (fds.revents & POLLERR) {
if (handleRecvErr(fd, NULL, 0)) {
recvErrors++;
}
}
if (fds.revents & POLLIN) {
n = recvEchoReply(fd);
if (!n) {
recvd++;
lastRecvTime = clock_get_dbl();
} else if (n > 0) {
/* still ok, but no reply */
} else { /* n < 0 */
return 1;
}
}
break;
case 0: /* timeout */
break;
case -1: /* error */
switch (errno) {
case EINTR:
case EAGAIN:
break;
default:
fprintf(stderr, "%s: poll([%d], 1, %d): %s\n",
argv0,
fd,
(int)(timewait*1000),
strerror(errno));
exit(2);
}
break;
default: /* can't happen */
fprintf(stderr, "%s: poll() returned %d!\n", argv0, n);
exit(2);
break;
}
}
printf("\n--- %s GTP ping statistics ---\n"
"%u packets transmitted, %u received, "
"%d%% packet loss, "
"time %dms\n"
"%u out of order, %u dups, "
"%u connection refused",
options.target,
sent, recvd,
(int)((100.0*(sent-recvd))/sent),
(int)(1000*(clock_get_dbl()-startTime)),
reorder, dups,
connectionRefused);
errInspectionPrintSummary();
printf("\n");
if (totalTimeCount) {
printf("rtt min/avg/max/mdev = %.3f/%.3f/%.3f/%.3f ms",
1000*totalMin,
1000*(totalTime / totalTimeCount),
1000*totalMax,
1000*sqrt((totalTimeSquared -
(totalTime * totalTime)
/totalTimeCount)/totalTimeCount));
}
printf("\n");
return recvd == 0;
}
/**
* FIXME: this function needs a cleanup, and probably some merging
* with pingMainloop()
*/
static int
tracerouteMainloop(int fd)
{
int ttl = 0;
int ttlTry = 0;
double curPingTime;
double lastRecvTime = 0;
double lastPingTime = 0;
int n;
int endOfTraceroute = 0;
int printStar = 0;
double timewait;
printf("GTPING traceroute to %s (%s) packet version %d.\n",
options.target,
options.targetip,
(int)options.version);
while (!sigintReceived) {
struct pollfd fds;
fds.fd = fd;
fds.events = POLLIN;
fds.revents = 0;
/* time to send yet? */
curPingTime = clock_get_dbl();
if ((lastRecvTime >= lastPingTime)
|| (curPingTime > lastPingTime + options.interval)) {
if (printStar) {
printf("*\n");
}
ttlTry++;
if (ttlTry < options.traceroutehops && ttl != 0) {
printf(" ");
} else {
if (endOfTraceroute) {
break;
}
ttl++;
ttlTry = 0;
printf("%4d ", ttl);
fflush(stdout);
}
if (setsockopt(fd,
SOL_IP,
IP_TTL,
&ttl,
sizeof(ttl))) {
fprintf(stderr,
"%s: setsockopt(%d, SOL_IP, IP_TTL, "
"%d): %s\n", argv0, fd, ttl,
strerror(errno));
}
if (0 <= sendEcho(fd, curSeq++)) {
lastPingTime = curPingTime;
printStar = 1;
}
}
/* max waittime: until it's time to send the next one */
timewait = lastPingTime+options.interval - clock_get_dbl();
if (timewait < 0) {
timewait = 0;
}
timewait *= 0.5; /* leave room for overhead */
switch ((n = poll(&fds, 1, (int)(timewait * 1000)))) {
case 1: /* read ready */
printStar = 0;
if (fds.revents & POLLERR) {
int e;
e = handleRecvErr(fd, NULL, lastPingTime);
if (e) {
lastRecvTime = clock_get_dbl();
}
if (e > 1) {
endOfTraceroute = 1;
}
}
if (fds.revents & POLLIN) {
n = recvEchoReply(fd);
endOfTraceroute = 1;
if (!n) {
lastRecvTime = clock_get_dbl();
} else if (n > 0) {
/* still ok, but no reply */
printStar = 1;
} else {
return 1;
}
}
break;
case 0: /* timeout */
break;
case -1: /* error */
switch (errno) {
case EINTR:
case EAGAIN:
break;
default:
fprintf(stderr, "%s: poll([%d], 1, %d): %s\n",
argv0,
fd,
(int)(timewait*1000),
strerror(errno));
exit(2);
}
break;
default: /* can't happen */
fprintf(stderr, "%s: poll() returned %d!\n", argv0, n);
exit(2);
break;
}
}
return 0;
}
TennisClient::TennisClient(QObject *parent)
: QObject(parent), socket(0), stream(0), elapsed(new QTime), lagTimeout(0)
{
lagTimer.setInterval(1000);
connect(&lagTimer, SIGNAL(timeout()), this, SLOT(sendEcho()));
}
