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Handle terminating signals (Gerd Hoffmann)

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This patch makes qemu handle signals better.  It sets the request_shutdown
flag, making the main_loop exit and qemu taking the usual exit route, with
atexit handlers being called and so on, instead of qemu just being killed
by the signal.

To avoid calling vm_start() from the signal handler main_loop() got an
additional check so qemu_system_shutdown_request() works even when the
vm is in stopped state.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5055 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aliguori 2008-08-21 20:08:03 +00:00
parent 6f382b5ec0
commit 5b08fc106d
3 changed files with 28 additions and 10 deletions
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9
sdl.c
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@ -476,10 +476,8 @@ static void sdl_refresh(DisplayState *ds)
sdl_process_key(&ev->key);
break;
case SDL_QUIT:
if (!no_quit) {
if (!no_quit)
qemu_system_shutdown_request();
vm_start(); /* In case we're paused */
}
break;
case SDL_MOUSEMOTION:
if (gui_grab || kbd_mouse_is_absolute() ||
@ -636,11 +634,6 @@ void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
fprintf(stderr, "Could not initialize SDL - exiting\n");
exit(1);
}
#ifndef _WIN32
/* NOTE: we still want Ctrl-C to work, so we undo the SDL redirections */
signal(SIGINT, SIG_DFL);
signal(SIGQUIT, SIG_DFL);
#endif
ds->dpy_update = sdl_update;
ds->dpy_resize = sdl_resize;