GMainLoop에 idle callback 넣기

흐름

1. loop객체와 context객체를 만든다.
2. context를 loop에 넣어서 만든 loop를 이용해서 g\_main\_loop\_run실행

코드

#include <glib.h>  
#include <stdio.h>  

static gboolean on\_idle(gpointer user\_data)  
{  
    //App \*app = (App\*)user\_data;  
    printf("on\_idle called\\n");  
    //return TRUE;  
    GMainLoop\* loop = (GMainLoop\*)user\_data;  
    g\_main\_loop\_quit(loop);  

    // TRUE를 리턴하면 반복  
    return FALSE;  
}  

int main(int argc, char\* argv\[\])  
{  
    GMainLoop\* loop = NULL;  
    GMainContext\* context = NULL;  

    // create a context   
    context = g\_main\_context\_new();  
    printf("create a context\\n");  

    GSource\* idle\_src = g\_idle\_source\_new();  
    int idle\_id = g\_source\_attach(idle\_src, context);    

    // create a main loop  
    loop = g\_main\_loop\_new(context, FALSE);  
    printf("create main loop\\n");  

    g\_source\_set\_callback(idle\_src, on\_idle, loop, NULL);  
    printf("set idle callback\\n");  

    g\_main\_loop\_run(loop);  
    printf("loop run\\n");  
    g\_main\_loop\_unref(loop);  

    return 0;  
}  

빌드 명령어

g++ -o mainloop\_test mainloop\_test.cpp \`pkg-config --cflags --libs glib-2.0\`  

참고자료

• https://docs.gtk.org/glib/func.idle_source_new.html