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uterm: vt: add helpers to (de)activate all VTs at once

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Two new helpers to activate or deactivate all VTs at once. They return the
total count of VT switches that are pending or an error code.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
This commit is contained in:
David Herrmann 2012-10-01 13:56:06 +02:00
parent a24b2e5478
commit 3b07517b13
2 changed files with 53 additions and 0 deletions
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3
src/uterm.h
View File

@ -335,6 +335,9 @@ int uterm_vt_master_new(struct uterm_vt_master **out,
void uterm_vt_master_ref(struct uterm_vt_master *vtm);
void uterm_vt_master_unref(struct uterm_vt_master *vtm);
int uterm_vt_master_activate_all(struct uterm_vt_master *vtm);
int uterm_vt_master_deactivate_all(struct uterm_vt_master *vtm);
int uterm_vt_allocate(struct uterm_vt_master *vt, struct uterm_vt **out,
const char *seat, struct uterm_input *input,
const char *vt_for_seat0, uterm_vt_cb cb, void *data);

50
src/uterm_vt.c
View File

@ -658,3 +658,53 @@ void uterm_vt_master_unref(struct uterm_vt_master *vtm)
ev_eloop_unref(vtm->eloop);
free(vtm);
}
int uterm_vt_master_activate_all(struct uterm_vt_master *vtm)
{
struct uterm_vt *vt;
struct shl_dlist *iter;
int ret, res = 0;
unsigned int in_progress = 0;
if (!vtm)
return -EINVAL;
shl_dlist_for_each(iter, &vtm->vts) {
vt = shl_dlist_entry(iter, struct uterm_vt, list);
ret = uterm_vt_activate(vt);
if (ret == -EINPROGRESS)
in_progress++;
else if (ret)
res = ret;
}
if (in_progress)
return in_progress;
return res;
}
int uterm_vt_master_deactivate_all(struct uterm_vt_master *vtm)
{
struct uterm_vt *vt;
struct shl_dlist *iter;
int ret, res = 0;
unsigned int in_progress = 0;
if (!vtm)
return -EINVAL;
shl_dlist_for_each(iter, &vtm->vts) {
vt = shl_dlist_entry(iter, struct uterm_vt, list);
ret = uterm_vt_deactivate(vt);
if (ret == -EINPROGRESS)
in_progress++;
else if (ret)
res = ret;
}
if (in_progress)
return in_progress;
return res;
}