[Qemu-devel] RFC : disable SDL window close capability\n

[Xavier Gnata <gnata@obs.univ-lyon1.fr>]

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Hi,
I have been asked to disable the capability to close qemu by clicking on 
the SDL window x icon.
The goal is to avoid lay users to shutdown the running OS under Qemu in 
a not clean way.
The patch is pretty simple. It adds a runtime  -no-quit option.

Any comments?

Xavier.

-- 
############################################
Xavier Gnata
CRAL - Observatoire de Lyon
9, avenue Charles André
69561 Saint Genis Laval cedex
Phone: +33 4 78 86 85 28
Fax: +33 4 78 86 83 86
E-mail: gnata@obs.univ-lyon1.fr
############################################ 


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Index: sdl.c
===================================================================
RCS file: /sources/qemu/qemu/sdl.c,v
retrieving revision 1.31
diff -u -r1.31 sdl.c
--- sdl.c	19 Aug 2006 14:27:30 -0000	1.31
+++ sdl.c	23 Oct 2006 10:39:12 -0000
@@ -496,7 +496,9 @@
                 sdl_process_key(&ev->key);
             break;
         case SDL_QUIT:
-            qemu_system_shutdown_request();
+	  if (!no_quit) {
+             qemu_system_shutdown_request();
+	  }
             break;
         case SDL_MOUSEMOTION:
             if (gui_grab || kbd_mouse_is_absolute()) {
Index: vl.c
===================================================================
RCS file: /sources/qemu/qemu/vl.c,v
retrieving revision 1.217
diff -u -r1.217 vl.c
--- vl.c	2 Oct 2006 19:44:22 -0000	1.217
+++ vl.c	23 Oct 2006 10:39:12 -0000
@@ -143,6 +143,7 @@
 #endif
 int graphic_depth = 15;
 int full_screen = 0;
+int no_quit = 0;
 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
 #ifdef TARGET_I386
@@ -5841,6 +5842,7 @@
            "-cdrom file     use 'file' as IDE cdrom image (cdrom is ide1 master)\n"
            "-boot [a|c|d]   boot on floppy (a), hard disk (c) or CD-ROM (d)\n"
 	   "-snapshot       write to temporary files instead of disk image files\n"
+	   "-no-quit        disable SDL window close capability\n"
 #ifdef TARGET_I386
            "-no-fd-bootchk  disable boot signature checking for floppy disks\n"
 #endif
@@ -6002,6 +6004,7 @@
     QEMU_OPTION_parallel,
     QEMU_OPTION_loadvm,
     QEMU_OPTION_full_screen,
+    QEMU_OPTION_no_quit,
     QEMU_OPTION_pidfile,
     QEMU_OPTION_no_kqemu,
     QEMU_OPTION_kernel_kqemu,
@@ -6078,6 +6081,7 @@
     { "parallel", 1, QEMU_OPTION_parallel },
     { "loadvm", HAS_ARG, QEMU_OPTION_loadvm },
     { "full-screen", 0, QEMU_OPTION_full_screen },
+    { "no-quit", 0, QEMU_OPTION_no_quit },
     { "pidfile", HAS_ARG, QEMU_OPTION_pidfile },
     { "win2k-hack", 0, QEMU_OPTION_win2k_hack },
     { "usbdevice", HAS_ARG, QEMU_OPTION_usbdevice },
@@ -6686,6 +6690,9 @@
             case QEMU_OPTION_full_screen:
                 full_screen = 1;
                 break;
+            case QEMU_OPTION_no_quit:
+                no_quit = 1;
+                break;	
             case QEMU_OPTION_pidfile:
                 create_pidfile(optarg);
                 break;
Index: vl.h
===================================================================
RCS file: /sources/qemu/qemu/vl.h,v
retrieving revision 1.154
diff -u -r1.154 vl.h
--- vl.h	24 Sep 2006 18:49:43 -0000	1.154
+++ vl.h	23 Oct 2006 10:39:12 -0000
@@ -152,6 +152,7 @@
 extern int win2k_install_hack;
 extern int usb_enabled;
 extern int smp_cpus;
+extern int no_quit;
 
 /* XXX: make it dynamic */
 #if defined (TARGET_PPC) || defined (TARGET_SPARC64)