LXR qemu/block/progress

   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#include "qemu/osdep.h"
  27#include "qemu/progress_meter.h"
  28
  29void progress_init(ProgressMeter *pm)
  30{
  31    qemu_mutex_init(&pm->lock);
  32}
  33
  34void progress_destroy(ProgressMeter *pm)
  35{
  36    qemu_mutex_destroy(&pm->lock);
  37}
  38
  39void progress_get_snapshot(ProgressMeter *pm, uint64_t *current,
  40                           uint64_t *total)
  41{
  42    QEMU_LOCK_GUARD(&pm->lock);
  43
  44    *current = pm->current;
  45    *total = pm->total;
  46}
  47
  48void progress_work_done(ProgressMeter *pm, uint64_t done)
  49{
  50    QEMU_LOCK_GUARD(&pm->lock);
  51    pm->current += done;
  52}
  53
  54void progress_set_remaining(ProgressMeter *pm, uint64_t remaining)
  55{
  56    QEMU_LOCK_GUARD(&pm->lock);
  57    pm->total = pm->current + remaining;
  58}
  59
  60void progress_increase_remaining(ProgressMeter *pm, uint64_t delta)
  61{
  62    QEMU_LOCK_GUARD(&pm->lock);
  63    pm->total += delta;
  64}
  65