int main(int argc, char *argv[])
{
int child_status;
pid_t pid;
mqd_t qdes;
mqd_t qdes2;
char qname2[] = "/mb_control";
char qname[] = "/mailboxLab5"; //queue name must start with '/'
mode_t mode = S_IRUSR | S_IWUSR;
struct mq_attr attr;
// int i = 0;
// int ii=0;
int j;
int a[50];
if ( argc !=5 ) {
printf("You have to enter: ./produce <N> <B>\n");
printf("<N> = number of integers the producer should produce\n");
printf("<B> = number of integers the message queue can hold\n");
printf("<P> = number of producers\n");
printf("<C> = number of consumers\n");
exit(1);
}
attr.mq_maxmsg = atoi(argv[2]); //Receiving "b" from producer
attr.mq_msgsize = sizeof(int); // The size of each message
attr.mq_flags = 0; // a blocking queue
qdes = mq_open(qname, O_RDWR | O_CREAT, mode, &attr); //Opening the mailboxLab5
if (qdes == -1 ) {
perror("mq_open()");
printf("mq error inside MAIN %d\n", getpid());
exit(1);
}
qdes2 = mq_open(qname2, O_RDWR | O_CREAT, mode, &attr); //Opening the control mailbox - mb_control
if (qdes2 == -1 ) {
perror("mq_open()");
printf("mq error inside MAIN %d\n", getpid());
exit(1);
}
int msg_null = 0;
for(j=0; j<atoi(argv[2]); j++){
if(mq_send(qdes2, (char*)&msg_null, sizeof(int), 0) == -1){
sleep(1);
perror("mq_send() failed");
}
}
gettimeofday(&tv, NULL);
t1 = tv.tv_sec + tv.tv_usec/1000000.0; //Time before creating first process
for(j=0; j<atoi(argv[3]);j++) { //loops till the number of producers
a[j]=j;
if(spawn2("./producer.out", argv[1], argv[2],argv[3],a[j]) != 0) {
continue; // This is to continue doing the fork when it is the parent process
}
}
for(j=0; j<atoi(argv[4]);j++) { //loops till the number of consumers
a[j+atoi(argv[3])]=j;
if(spawn("./consumer.out", argv[1], argv[2],argv[4],a[j+atoi(argv[3])],argv[3]) != 0) {
continue; // This is to continue doing the fork when it is the parent process
}
}
//Calling waitpid. So the main function can wait all the processes finish, and then it can finish
for(j=0; j<(atoi(argv[3]) + atoi(argv[4])); j++){
waitpid(ch_pid[j],&child_status,0);
if(WIFEXITED(child_status)){
} else
printf("%d was NOT waited %d\n",j,ch_pid[j]);
}
if (mq_close(qdes) == -1) {
perror("mq_close() failed inside MAIN");
exit(2);
}
if (mq_close(qdes2) == -1) {
perror("mq_close() failed inside MAIN");
exit(2);
}
if (mq_unlink(qname) != 0) {
perror("mq_unlink() failed inside MAIN");
exit(3);
}
if (mq_unlink(qname2) != 0) {
perror("mq_unlink() failed inside MAIN");
exit(3);
}
gettimeofday(&tv, NULL);
t2 = tv.tv_sec + tv.tv_usec/1000000.0; //Time after last integer is consumed
printf("System execution time: %f seconds\n", t2-t1); //Calculating the system execution time
return 0;
}
/* GameBored contstructor
* @param QWidget is the parent widget
*/
GameBored::GameBored(QWidget *parent) :
QWidget(parent),
ui(new Ui::GameBored)
{
ui->setupUi(this);
// make scene
QGraphicsScene * scene= new QGraphicsScene();
scene->setSceneRect(0,0,800,600);
scene->setBackgroundBrush(QBrush(QImage(":/pics/bg")));
// make and add item to scene
MyRect * player = new MyRect();
scene->addItem(player);
// focus item so that it can receive keyboard events
player->setFlag(QGraphicsItem::ItemIsFocusable);
player->setFocus();
// add scene to new view
QGraphicsView * view = new QGraphicsView(scene);
//turn off scrollbars
view->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
view->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
Board= new QWidget;
//Board->setFixedSize(400,400);
// add view to new layout
// add layout to central widget
QVBoxLayout * vlayout = new QVBoxLayout(Board);
vlayout->addWidget(view);
this->setLayout(vlayout);
//
this->show();
view->setFixedSize(800,600);
scene->setSceneRect(0,0,800,600);
player->setPos(view->width()/2 -player->pixmap().width()/2, -28 /*view->height()- player->pixmap().height()*/);
// constant creation of enemies
QTimer* timer = new QTimer();
QObject::connect(timer,SIGNAL(timeout()),player,SLOT(spawn()));
timer->start(2400);
QTimer* timer2 = new QTimer();
QObject::connect(timer2,SIGNAL(timeout()),player,SLOT(spawn2()));
timer2->start(5000);
// play music
mp3player = new QMediaPlayer();
mp3player->setMedia(QUrl("qrc:/audio/starfox.mp3"));
mp3player->play();
// add score class to screen
score = new Score();
scene->addItem(score);
}
