I'm trying to make a GUI that will connect to the network when the user presses a button. I am getting a compilation error when trying to compile the gui_ex.cpp file.
gui_ex.cpp: In member function ‘void Gui_Ex::on_connect()’:
gui_ex.cpp:110:19: error: no matching function for call to ‘Gui_Ex::close(int&)’
close(sock);
^
gui_ex.cpp:110:19: note: candidate is:
In file included from /usr/include/gtkmm-3.0/gtkmm/dialog.h:30:0,
from /usr/include/gtkmm-3.0/gtkmm/aboutdialog.h:33,
from /usr/include/gtkmm-3.0/gtkmm.h:99,
from gui_ex.h:4,
from gui_ex.cpp:1:
/usr/include/gtkmm-3.0/gtkmm/window.h:2026:8: note: void Gtk::Window::close()
void close();
^
/usr/include/gtkmm-3.0/gtkmm/window.h:2026:8: note: candidate expects 0 arguments, 1 provided
gui_ex.cpp:117:19: error: no matching function for call to ‘Gui_Ex::close(int&)’
close(sock);
^
gui_ex.cpp:117:19: note: candidate is:
In file included from /usr/include/gtkmm-3.0/gtkmm/dialog.h:30:0,
from /usr/include/gtkmm-3.0/gtkmm/aboutdialog.h:33,
from /usr/include/gtkmm-3.0/gtkmm.h:99,
from gui_ex.h:4,
from gui_ex.cpp:1:
/usr/include/gtkmm-3.0/gtkmm/window.h:2026:8: note: void Gtk::Window::close()
void close();
^
/usr/include/gtkmm-3.0/gtkmm/window.h:2026:8: note: candidate expects 0 arguments, 1 provided
It seems like the program is getting confused between the close command for the socket and the close command for the Gtk::Window. Is it possible to adjust the code so that the compiler can differentiate the two?
Here is my code: gui_ex.h file
#ifndef GTKMM_EX_GUI_H
#define GTKMM_EX_GUI_H
#include <gtkmm.h>
class Gui_Ex : public Gtk::Window
{
public:
Gui_Ex();
virtual ~Gui_Ex();
protected:
// Signal handlers:
// new button
void on_connect();
void on_spin();
//void on_spinbutton_digits_changed();
//child widgets
//Gtk::Frame m_Frame_Init, m_Frame_Control;
Glib::RefPtr<Gtk::Adjustment> m_adjustment;
Gtk::Label m_label;
Gtk::Grid m_grid;
Gtk::SpinButton m_spin;
Gtk::Button m_button2, m_button3; //m_connect;
};
#endif // GTKMM_EX_GUI_H
gui_ex.cpp
#include "gui_ex.h"
#include <iostream>
#include <stdio.h>
#include <stdlib.h>
#include <iostream>
#include <cstring>
#include <string.h> // memset
#include <pthread.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <unistd.h>
#include <netdb.h>
#include <vector>
#include <string>
using namespace std;
#define PORT "8888"
//#define BACKLOG 2
#define IP_ADDR "192.168.137.99"
#define MAXLEN 1024
int BACKLOG =0;
static unsigned int cli_count = 0;
static int uid = 20;
vector<int> cliarray;
Gui_Ex::Gui_Ex()
:
// m_button1("Button 1"),
m_adjustment( Gtk::Adjustment::create(1.0, 1.0, 5.0, 1.0, 5.0, 0.0) ),
m_button2("Enter"),
m_button3("Connect"),
m_spin(m_adjustment),
m_label("Choose # clients")
{
set_title("Grid");
set_border_width(12);
m_grid.attach(m_label, 0,0,1,1); //column, row, width (# col span), height (# row span)
m_grid.attach(m_spin, 1,0,1,1);
m_spin.set_wrap();
m_spin.set_numeric(true);
m_grid.attach(m_button2, 2,0,1,1);
m_grid.attach(m_button3, 0,1,3,1);
m_button3.set_sensitive(false);
m_button2.signal_clicked().connect(sigc::mem_fun(*this, &Gui_Ex::on_spin));
m_button3.signal_clicked().connect(sigc::mem_fun(*this, &Gui_Ex::on_connect));
//m_button3.signal_clicked().connect(sigc::bind<int>(sigc::mem_fun(*this, &Gui_Ex::on_connect), m_spin.get_value_as_int()));
add(m_grid);
m_grid.show_all();
//show_all_children();
}
Gui_Ex::~Gui_Ex()
{
}
void Gui_Ex::on_spin()
{
cout<<"Spin value =: " << m_spin.get_value_as_int() << endl;
BACKLOG = m_spin.get_value_as_int();
m_spin.set_sensitive(false);
m_button2.set_sensitive(false);
m_button3.set_sensitive(true);
}
void Gui_Ex::on_connect()
{
int connfd =0, n = 0;
int *new_sock, sock;
cout << BACKLOG << endl;
pthread_t thread;
struct addrinfo hints, *res;
int reuseaddr = 1; // True
// Get the address info
memset(&hints, 0, sizeof hints);
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_STREAM;
if (getaddrinfo(IP_ADDR, PORT, &hints, &res) != 0) {
perror("getaddrinfo");
//return 1;
}
// Create the socket
sock = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
if (sock == -1) {
perror("socket");
// return 1;
}
// Enable the socket to reuse the address
if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &reuseaddr, sizeof(int)) == -1) {
perror("setsockopt");
close(sock);
// return 1;
}
// Bind to the address
if (bind(sock, res->ai_addr, res->ai_addrlen) == -1) {
perror("bind");
close(sock);
//return 0;
}
freeaddrinfo(res);
// Listen
if (listen(sock, BACKLOG) == -1) {
perror("listen");
// return 0;
}
cout << "listening for connections" << endl;
// Main loop
bool running = true;
// Initialize clients
while (running)
{
size_t size = sizeof(struct sockaddr_in);
struct sockaddr_in their_addr;
int clilen = sizeof(their_addr);
int newsock = accept(sock, (struct sockaddr*)&their_addr, &size);
if (newsock == -1)
{
perror("accept");
// return -1;
}
cli_count++;
printf("Got a connection from %s on port %d\n", inet_ntoa(their_addr.sin_addr), htons(their_addr.sin_port));
cliarray.push_back(newsock);
if (cli_count == BACKLOG)
{
cout << "Max clients reached" << endl;
running = false;
break;
}
}
}
