1 /*
2 * Helper functionality for some process progress tracking.
3 *
4 * Copyright (c) 2011 IBM Corp.
5 * Copyright (c) 2012, 2018 Red Hat, Inc.
6 * Copyright (c) 2020 Virtuozzo International GmbH
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 * THE SOFTWARE.
25 */
26
27 #include "qemu/osdep.h"
28 #include "qemu/coroutine.h"
29 #include "qemu/progress_meter.h"
30
progress_init(ProgressMeter * pm)31 void progress_init(ProgressMeter *pm)
32 {
33 qemu_mutex_init(&pm->lock);
34 }
35
progress_destroy(ProgressMeter * pm)36 void progress_destroy(ProgressMeter *pm)
37 {
38 qemu_mutex_destroy(&pm->lock);
39 }
40
progress_get_snapshot(ProgressMeter * pm,uint64_t * current,uint64_t * total)41 void progress_get_snapshot(ProgressMeter *pm, uint64_t *current,
42 uint64_t *total)
43 {
44 QEMU_LOCK_GUARD(&pm->lock);
45
46 *current = pm->current;
47 *total = pm->total;
48 }
49
progress_work_done(ProgressMeter * pm,uint64_t done)50 void progress_work_done(ProgressMeter *pm, uint64_t done)
51 {
52 QEMU_LOCK_GUARD(&pm->lock);
53 pm->current += done;
54 }
55
progress_set_remaining(ProgressMeter * pm,uint64_t remaining)56 void progress_set_remaining(ProgressMeter *pm, uint64_t remaining)
57 {
58 QEMU_LOCK_GUARD(&pm->lock);
59 pm->total = pm->current + remaining;
60 }
61
progress_increase_remaining(ProgressMeter * pm,uint64_t delta)62 void progress_increase_remaining(ProgressMeter *pm, uint64_t delta)
63 {
64 QEMU_LOCK_GUARD(&pm->lock);
65 pm->total += delta;
66 }
67