c++ - Launch a server and an IHM in different thread -

c++ - Launch a server and an IHM in different thread -

i need advice on programme i'm coding right now. first of all, allow me nowadays :

i design ihm button , stuff :

here's main window :

when click on qbutton supervision, i'm going on window :

the ihm finished, after code server, works, , treat frame receive. want lauch server , ihm @ same time, , when click on supervision, show info server receive in qtablewidget.

for doing this, think need : thread , shared memory segmentation.

thread : lauch server , ihm , , memory segmentation : give ihm, info server receive.

i seek lauch server in constructor of main window, here's code in main window :

//constructor mainwindow::mainwindow(qwidget *parent) : qmainwindow(parent), ui(new ui::mainwindow) { ui->setupui(this); //start window (initialisation of button code ... //thread of server std::thread t1(lancerserveur); t1.join(); } //server function lauch thread void mainwindow::lancerserveur(){ server s; while(1){ s.readdata(); } }

problem : server start not ihm, don't understand why, because supposed in thread ...

also think shared memory segmentation thought ? if yes, have link me ?

thanks.

as server reading thread infinite loop, never exit of it. so, phone call join never return. storing thread object in fellow member variable ensures not destroyed 1 time go out of scope.

//header file #include <thread> class mainwindow : public qmainwindow { //... private: std::thread m_t1; }; //source file mainwindow::mainwindow(qwidget *parent) : qmainwindow(parent), ui(new ui::mainwindow) { ui->setupui(this); //start window (initialisation of button code ... //thread of server m_t1 = std::thread(lancerserveur); }

if want thread runs on own , don't care joinable, can decided detach it.

mainwindow::mainwindow(qwidget *parent) : qmainwindow(parent), ui(new ui::mainwindow) { ui->setupui(this); //start window (initialisation of button code ... //thread of server std::thread t1 = std::thread(lancerserveur); t1.detach(); //..going out of scope not destroy thread }

c++ multithreading qt network-programming