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 #ifndef QEMU_PROGRESS_METER_H 28 #define QEMU_PROGRESS_METER_H 29 30 typedef struct ProgressMeter { 31 /** 32 * Current progress. The unit is arbitrary as long as the ratio between 33 * current and total represents the estimated percentage 34 * of work already done. 35 */ 36 uint64_t current; 37 38 /** Estimated current value at the completion of the process */ 39 uint64_t total; 40 } ProgressMeter; 41 42 static inline void progress_work_done(ProgressMeter *pm, uint64_t done) 43 { 44 pm->current += done; 45 } 46 47 static inline void progress_set_remaining(ProgressMeter *pm, uint64_t remaining) 48 { 49 pm->total = pm->current + remaining; 50 } 51 52 static inline void progress_increase_remaining(ProgressMeter *pm, 53 uint64_t delta) 54 { 55 pm->total += delta; 56 } 57 58 #endif /* QEMU_PROGRESS_METER_H */ 59