Dialog::Dialog(QWidget *parent) :
QDialog(parent),
ui(new Ui::Dialog)
{
/* UTF-8 support */
QTextCodec::setCodecForLocale(QTextCodec::codecForName("UTF-8"));
ui->setupUi(this);
QString title = "MyShell 0.4 - tanhangbo build " + tr(__DATE__);
this->setWindowTitle(title);
this->setWindowFlags(this->windowFlags() | Qt::WindowMinMaxButtonsHint);
serial = new QSerialPort(this);
connect(serial, SIGNAL(error(QSerialPort::SerialPortError)), this, SLOT(handleError(QSerialPort::SerialPortError)));
connect(serial, SIGNAL(readyRead()), this, SLOT(readData()));
standardItemModel = new QStandardItemModel(this);
ui->history_list->setModel(standardItemModel);
ui->status->setText("");
/* arrow up and down event */
ui->sendcontent->installEventFilter(this);
ui->receive_content->installEventFilter(this);
history_index = 0;
current_index = 0;
log_current_file_name = "";
log_is_logging = false;
cur_file = NULL;
receive_buffer = "";
error_closed = 0;
need_add_time = false;
find_serial();
timer = new QTimer(this);
connect(timer, SIGNAL(timeout()), this, SLOT(timer_update()));
timer->start(10);
}
void monitor() {
static const int bufsize = 1024;
int nready;
int reading;
ssize_t nread;
char buf[bufsize];
struct pollfd pollfd;
pollfd.fd = serialfd;
pollfd.events = POLLIN | POLLHUP;
while(1) {
nready = poll(&pollfd,1,-1);
if(nready < 0) syslog(LOG_WARNING,"poll error (%m)");
if(pollfd.revents & POLLIN) {
buf[0] = '\0';
reading = nread = 0;
while(nread >= 0
&& (!strchr(buf,'{') || !strchr(buf,'}'))) {
nread += read(serialfd,buf + nread,nready);
if(!reading && !strchr(buf,'{')) break;
else reading = 1;
if(nread >= bufsize) {
buf[bufsize - 1] = '\0';
break;
}
if(nread >= 0) buf[nread] = '\0';
nready = 1;
}
if(nread < 0) syslog(LOG_WARNING,"read error (%m)");
parse(buf);
}
if(pollfd.revents & POLLHUP) {
syslog(LOG_NOTICE,"serial device removed");
close(serialfd);
find_serial();
pollfd.fd = serialfd;
}
}
}
void init_com() {
char *msg;
int err, fd;
struct stat stat;
char *dbname, *keyname;
umask(0);
/* XBee serial device */
inotifyfd = inotify_init();
find_serial();
/* SQLite3 database */
dbname = getenv("ANGEL_DB");
if(!dbname) dbname = "/var/opt/staevt.com/angel/angel.sqlite3";
err = sqlite3_open(dbname,&db);
if(err != SQLITE_OK) die("cannot open database '%s'",dbname);
sqlite3_exec(db,"PRAGMA journal_mode=WAL",NULL,NULL,&msg);
if(msg) die(msg);
sqlite3_exec(db,"CREATE TABLE IF NOT EXISTS cars ("
"car TEXT, time_received TIMESTAMP"
" DEFAULT (strftime('%s','now')),"
"time INTEGER, amperage REAL, voltage REAL, latitude REAL,"
"longitude REAL, speed REAL, PRIMARY KEY (car, time_received)"
")",NULL,NULL,&msg);
if(msg) die(msg);
/* HMAC key */
keyname = getenv("ANGEL_KEY");
if(!keyname) keyname = "/var/opt/staevt.com/angel/hmac.key";
fd = open(keyname,O_RDONLY);
if(fd < 0) die("cannot open HMAC key file '%s'",keyname);
fstat(fd,&stat);
hmackeysize = stat.st_size;
hmackey = malloc(hmackeysize);
if(!hmackey) die("cannot allocate memory for HMAC key");
read(fd,hmackey,hmackeysize);
close(fd);
}
