Hi,
I'm trying to integrate another splash system into suspend.
It's a userspace splash program (splashy) so it should be easier for people
to use (no kernel patches), but 'm not really sure if it's going to work at
all.
Being a userspace program, is it going to be frozen? I guess it will from
the point we call freeze(), right?
So for it to be allowed to draw on the screen till the end of the process,
we'll have to do the drawing ourselves? Do children also get frozen?
I also have some questions about the code related to that.
First:
What is this switch_vt_mode macro used in suspend_system supposed to do?
Whatever it is, I don't think it's doing the right thing now. My console_ioctls
man page says if you want to set you KD_GRAPHICS or KD_TEXT you need the
KDSETMODE ioctl, not KDSKBMOD.
#define switch_vt_mode(fd, vt, ioc1, ioc2) ioctl(fd, KDSKBMODE, ioc1); \
ioctl(fd, VT_ACTIVATE, vt); \
ioctl(fd, VT_WAITACTIVE, vt); \
ioctl(fd, KDSKBMODE, ioc2);
int suspend_system(int snapshot_fd, int resume_fd, int vt_fd, int vt_no)
{
loff_t avail_swap;
unsigned long image_size;
int attempts, in_suspend, error = 0;
avail_swap = check_free_swap(snapshot_fd);
if (avail_swap > pref_image_size)
image_size = pref_image_size;
else
image_size = avail_swap;
if (!image_size) {
fprintf(stderr, "suspend: No swap space for suspend\n");
return ENOSPC;
}
switch_vt_mode(vt_fd, vt_no, K_MEDIUMRAW, KD_GRAPHICS);
error = freeze(snapshot_fd);
switch_vt_mode(vt_fd, vt_no, KD_TEXT, K_XLATE);
splash.switch_to();
splash.progress(15);
Is this KDSETMODE juggling also the reason to switch to splash only at this
point?
Another question:
Is there any particular reason to splash_prepare() before console_prepare() ?
I rather have it the other way around.
Thanks for the answers.
grts Tim
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