我用 GTK+-2.0 开发了一个简单的应用程序。我的问题是如何在不冻结程序的情况下运行 bash 脚本(例如使用 system(3))?我试图实现一个线程系统,但它没有奏效。
这是我的代码片段,我尽量简化。问候
int main(int argc,
char * argv[])
{
GtkWidget *button;
/* init threads */
g_thread_init(NULL);
gdk_threads_init();
gtk_init(&argc,&argv);
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
...
button = gtk_button_new_with_label("Format");
g_signal_connect(button,"clicked",G_CALLBACK(callback),(gpointer)"button 1");
gtk_table_attach_defaults (GTK_TABLE (table), button, 0, 1, 0, 1);
gtk_widget_show(button);
gdk_threads_enter();
gtk_main();
gdk_threads_leave();
return 0;
}
/* Our callback.
* The data passed to this function is printed to stdout */
static void callback( GtkWidget *widget,
gpointer data )
{
int sTemp=0;
GThread *thread;
GError *error = NULL;
g_print ("Hello again - %s was pressed\n", (char *) data);
sTemp=ChecckIfFileExits("/dev/mmcblk0");
if(sTemp)
{
gtk_label_set_text(GTK_LABEL(label),"Formatting");
thread = g_thread_create( PFormatThrad, (gpointer)widget,
FALSE, &error );
if( ! thread )
{
g_print( "Error: %s\n", error->message );
}
}
else
{
g_print ("SD/MMC not found\n");
}
}
static gpointer
PFormatThrad( gpointer data )
{
sleep( 3 );
gdk_threads_enter();
system("./mkcard.txt /dev/mmcblk0");
gtk_widget_set_sensitive(selectImageButton,TRUE);
gtk_label_set_text(GTK_LABEL(label),"Format tamamlandı\nİmajı Seçin");
gdk_threads_leave();
return( NULL );
}