progress_meter.c (2076B)
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 29 void progress_init(ProgressMeter *pm) 30 { 31 qemu_mutex_init(&pm->lock); 32 } 33 34 void progress_destroy(ProgressMeter *pm) 35 { 36 qemu_mutex_destroy(&pm->lock); 37 } 38 39 void 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 48 void progress_work_done(ProgressMeter *pm, uint64_t done) 49 { 50 QEMU_LOCK_GUARD(&pm->lock); 51 pm->current += done; 52 } 53 54 void progress_set_remaining(ProgressMeter *pm, uint64_t remaining) 55 { 56 QEMU_LOCK_GUARD(&pm->lock); 57 pm->total = pm->current + remaining; 58 } 59 60 void progress_increase_remaining(ProgressMeter *pm, uint64_t delta) 61 { 62 QEMU_LOCK_GUARD(&pm->lock); 63 pm->total += delta; 64 }