void
sched_start(struct status_line *status)
{
const unsigned sleeptime = longest_sleep(status);
debug("starting scheduler with sleep time %d", sleeptime);
while (1) {
update_status_line(status);
json_print_status_line(status);
/* Sleep or force check on interruption */
if (sleep(sleeptime)) {
debug("woken up by signal %d", caughtsig);
if (caughtsig == SIGIO) {
debug("stdin readable");
handle_click(status);
}
}
}
}
/* if force then do update otherwise return 1 if update or 0 if not */
static int update_1(Line *top, int force)
{
int i;
Window_Type *start_win;
int did_eob, time_has_expired = 0;
if (Batch ||
(!force
&& (Executing_Keyboard_Macro || (Repeat_Factor != NULL)
|| screen_input_pending (0)
|| (Read_This_Character != NULL)))
|| (CBuf != JWindow->buffer))
{
return(0);
}
if (Suspend_Screen_Update != 0)
{
Suspend_Screen_Update = 0;
touch_screen ();
}
JWindow->mark.line = CLine;
JWindow->mark.point = Point;
JWindow->mark.n = LineNum + CBuf->nup;
CBuf->linenum = LineNum;
CBuf->max_linenum = Max_LineNum;
if (Wants_Attributes && CBuf->vis_marks)
{
JWindow->trashed = 1;
}
/* Do not bother setting this unless it is really needed */
if (Display_Time)
{
Status_This_Time = sys_time();
time_has_expired = (Status_This_Time > Status_Last_Time + 45);
}
/* if cursor moves just left right, do not update status line */
if (!force && !JWindow->trashed &&
((JWindow == JWindow->next) || (User_Prefers_Line_Numbers && Cursor_Motion))
/* if % wanted, assume user is like me and gets annoyed with
* screen updates
*/
&& (User_Prefers_Line_Numbers
|| time_has_expired))
{
update_status_line(0);
return(1);
}
if (!JWindow->trashed && Cursor_Motion)
{
#if JED_HAS_LINE_ATTRIBUTES
if (CLine->flags & JED_LINE_IS_READONLY)
update_status_line (0);
#endif
return 1;
}
start_win = JWindow;
do
{
int imax;
unsigned int start_column;
#if JED_HAS_LINE_ATTRIBUTES
if (CBuf->min_unparsed_line_num)
jed_syntax_parse_buffer (0);
#endif
if (Wants_Syntax_Highlight) init_syntax_highlight ();
#if JED_HAS_LINE_ATTRIBUTES
if (top != NULL) top = jed_find_non_hidden_line (top);
#endif
/* (void) SLsmg_utf8_enable (CBuf->local_vars.is_utf8); */
if (top == NULL)
{
top = find_top();
if (top == NULL) top = CLine;
}
JWindow->beg.line = top;
#if JED_HAS_LINE_ATTRIBUTES
if (top->flags & JED_LINE_HIDDEN)
top = NULL;
else
#endif
mark_window_attributes ((start_win == JWindow) || (start_win->buffer != CBuf));
did_eob = 0;
i = JWindow->sy;
imax = i + JWindow->rows;
compute_line_display_size ();
start_column = JWindow->sx;
while (i < imax)
{
#if JED_HAS_LINE_ATTRIBUTES
if ((top != NULL) && (top->flags & JED_LINE_HIDDEN))
{
top = top->next;
continue;
}
#endif
/* the next line is really optional */
#if 0
if (!force && (Exit_From_MiniBuffer ||
screen_input_pending (0))) break;
#endif
if ((JScreen[i].line != top)
|| JScreen[i].is_modified
|| (Want_Eob
&& !did_eob
&& (i != Jed_Num_Screen_Rows - 1)
&& (top == NULL)))
{
if (((top == NULL) || (top->len == 0))
&& (Want_Eob && !did_eob && !(CBuf->flags & READ_ONLY)))
{
display_line(&Eob_Line, i, start_column);
/* JScreen[i].line = top; */
did_eob = 1;
}
else display_line(top, i, start_column);
}
if (top != NULL)
top = top->next;
i++;
}
HScroll_Line = NULL;
Mode_Has_Syntax_Highlight = 0;
if (!force && screen_input_pending (0))
{
while (JWindow != start_win) other_window();
JWindow->trashed = 1; /* since cursor not pointed */
/* (void) SLsmg_utf8_enable (1); */ /* default state */
return(0);
}
else update_status_line (start_win != JWindow);
#if JED_HAS_DISPLAY_LINE_NUMBERS
if (CBuf->line_num_display_size)
display_line_numbers ();
#endif
JWindow->trashed = 0;
other_window();
top = NULL;
/* if (!JWindow->trashed) top = JWindow->beg.line; else top = NULL; */
}
while (JWindow != start_win);
/* SLsmg_utf8_enable (1); */ /* default state */
return 1;
}
