bool menu_item::get_display_data(unsigned n,const ptr_list_base<metadb_handle> & data,string_base & out,unsigned & displayflags,const GUID & caller)
{
bool rv;
menu_item_v2 * this_v2 = service_query_t(menu_item_v2,this);
if (this_v2)
{
rv = this_v2->get_display_data(n,data,out,displayflags,caller);
this_v2->service_release();
}
else
{
rv = get_display_data(n,data,out,displayflags);
}
return rv;
}
void client_msg(const char *key, json_t *value)
{
int len, ret, pos;
char *jsonstr;
json_t *jval, *display_data;
jval = json_object();
/* send out display data whenever anything else goes out */
display_data = get_display_data();
if (display_data) {
json_object_set_new(jval, "display", display_data);
display_data = NULL;
}
/* actual message content */
json_object_set_new(jval, key, value);
jsonstr = json_dumps(jval, JSON_COMPACT);
json_decref(jval);
if (can_send_msg) {
len = strlen(jsonstr);
pos = 0;
do {
ret = write(outfd, &jsonstr[pos], len - pos);
if (ret == -1 && (errno == EINTR || errno == EAGAIN))
continue;
else if (ret == -1 || ret == 0) { /* bad news */
/* since we just found we can't write output to the pipe,
* prevent any more tries */
close(infd);
close(outfd);
infd = outfd = -1;
exit_client(NULL); /* Goodbye. */
}
pos += ret;
} while(pos < len);
}
/* this message is sent; don't send another */
can_send_msg = FALSE;
free(jsonstr);
}
int omapfb_set_update_mode(struct fb_info *fbi,
enum omapfb_update_mode mode)
{
struct omap_dss_device *display = fb2display(fbi);
struct omapfb_info *ofbi = FB2OFB(fbi);
struct omapfb2_device *fbdev = ofbi->fbdev;
struct omapfb_display_data *d;
int r;
if (!display)
return -EINVAL;
if (mode != OMAPFB_AUTO_UPDATE && mode != OMAPFB_MANUAL_UPDATE)
return -EINVAL;
omapfb_lock(fbdev);
d = get_display_data(fbdev, display);
if (d->update_mode == mode) {
omapfb_unlock(fbdev);
return 0;
}
r = 0;
if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
if (mode == OMAPFB_AUTO_UPDATE)
omapfb_start_auto_update(fbdev, display);
else /* MANUAL_UPDATE */
omapfb_stop_auto_update(fbdev, display);
d->update_mode = mode;
} else { /* AUTO_UPDATE */
if (mode == OMAPFB_MANUAL_UPDATE)
r = -EINVAL;
}
omapfb_unlock(fbdev);
return r;
}
int omapfb_get_update_mode(struct fb_info *fbi,
enum omapfb_update_mode *mode)
{
struct omap_dss_device *display = fb2display(fbi);
struct omapfb_info *ofbi = FB2OFB(fbi);
struct omapfb2_device *fbdev = ofbi->fbdev;
struct omapfb_display_data *d;
if (!display)
return -EINVAL;
omapfb_lock(fbdev);
d = get_display_data(fbdev, display);
*mode = d->update_mode;
omapfb_unlock(fbdev);
return 0;
}
