xref: /linux/tools/perf/ui/tui/progress.c (revision 3a38ef2b3cb6b63c105247b5ea4a9cf600e673f0)
1 // SPDX-License-Identifier: GPL-2.0
2 #include <linux/kernel.h>
3 #include "../progress.h"
4 #include "../libslang.h"
5 #include "../ui.h"
6 #include "tui.h"
7 #include "units.h"
8 #include "../browser.h"
9 
10 static void __tui_progress__init(struct ui_progress *p)
11 {
12 	p->next = p->step = p->total / (SLtt_Screen_Cols - 2) ?: 1;
13 }
14 
15 static int get_title(struct ui_progress *p, char *buf, size_t size)
16 {
17 	char buf_cur[20];
18 	char buf_tot[20];
19 	int ret;
20 
21 	ret  = unit_number__scnprintf(buf_cur, sizeof(buf_cur), p->curr);
22 	ret += unit_number__scnprintf(buf_tot, sizeof(buf_tot), p->total);
23 
24 	return ret + scnprintf(buf, size, "%s [%s/%s]",
25 			       p->title, buf_cur, buf_tot);
26 }
27 
28 static void tui_progress__update(struct ui_progress *p)
29 {
30 	char buf[100], *title = (char *) p->title;
31 	int bar, y;
32 	/*
33 	 * FIXME: We should have a per UI backend way of showing progress,
34 	 * stdio will just show a percentage as NN%, etc.
35 	 */
36 	if (use_browser <= 0)
37 		return;
38 
39 	if (p->total == 0)
40 		return;
41 
42 	if (p->size) {
43 		get_title(p, buf, sizeof(buf));
44 		title = buf;
45 	}
46 
47 	ui__refresh_dimensions(false);
48 	mutex_lock(&ui__lock);
49 	y = SLtt_Screen_Rows / 2 - 2;
50 	SLsmg_set_color(0);
51 	SLsmg_draw_box(y, 0, 3, SLtt_Screen_Cols);
52 	SLsmg_gotorc(y++, 1);
53 	SLsmg_write_string(title);
54 	SLsmg_fill_region(y, 1, 1, SLtt_Screen_Cols - 2, ' ');
55 	SLsmg_set_color(HE_COLORSET_SELECTED);
56 	bar = ((SLtt_Screen_Cols - 2) * p->curr) / p->total;
57 	SLsmg_fill_region(y, 1, 1, bar, ' ');
58 	SLsmg_refresh();
59 	mutex_unlock(&ui__lock);
60 }
61 
62 static void tui_progress__finish(void)
63 {
64 	int y;
65 
66 	if (use_browser <= 0)
67 		return;
68 
69 	ui__refresh_dimensions(false);
70 	mutex_lock(&ui__lock);
71 	y = SLtt_Screen_Rows / 2 - 2;
72 	SLsmg_set_color(0);
73 	SLsmg_fill_region(y, 0, 3, SLtt_Screen_Cols, ' ');
74 	SLsmg_refresh();
75 	mutex_unlock(&ui__lock);
76 }
77 
78 static struct ui_progress_ops tui_progress__ops = {
79 	.init   = __tui_progress__init,
80 	.update = tui_progress__update,
81 	.finish = tui_progress__finish,
82 };
83 
84 void tui_progress__init(void)
85 {
86 	ui_progress__ops = &tui_progress__ops;
87 }
88