| 1 | #ifndef BABELTRACE_TRACE_IR_CLOCK_SNAPSHOT_INTERNAL_H |
| 2 | #define BABELTRACE_TRACE_IR_CLOCK_SNAPSHOT_INTERNAL_H |
| 3 | |
| 4 | /* |
| 5 | * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com> |
| 6 | * |
| 7 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 8 | * of this software and associated documentation files (the "Software"), to deal |
| 9 | * in the Software without restriction, including without limitation the rights |
| 10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 11 | * copies of the Software, and to permit persons to whom the Software is |
| 12 | * furnished to do so, subject to the following conditions: |
| 13 | * |
| 14 | * The above copyright notice and this permission notice shall be included in |
| 15 | * all copies or substantial portions of the Software. |
| 16 | * |
| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 20 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 23 | * SOFTWARE. |
| 24 | */ |
| 25 | |
| 26 | #include "common/macros.h" |
| 27 | #include "lib/object.h" |
| 28 | #include <stdbool.h> |
| 29 | #include <stdint.h> |
| 30 | |
| 31 | #include "clock-class.h" |
| 32 | #include "utils.h" |
| 33 | |
| 34 | struct bt_clock_class; |
| 35 | |
| 36 | struct bt_clock_snapshot { |
| 37 | struct bt_object base; |
| 38 | struct bt_clock_class *clock_class; |
| 39 | uint64_t value_cycles; |
| 40 | bool ns_from_origin_overflows; |
| 41 | int64_t ns_from_origin; |
| 42 | bool is_set; |
| 43 | }; |
| 44 | |
| 45 | static inline |
| 46 | void bt_clock_snapshot_set(struct bt_clock_snapshot *clock_snapshot) |
| 47 | { |
| 48 | BT_ASSERT(clock_snapshot); |
| 49 | clock_snapshot->is_set = true; |
| 50 | } |
| 51 | |
| 52 | static inline |
| 53 | void bt_clock_snapshot_reset(struct bt_clock_snapshot *clock_snapshot) |
| 54 | { |
| 55 | BT_ASSERT(clock_snapshot); |
| 56 | clock_snapshot->is_set = false; |
| 57 | } |
| 58 | |
| 59 | static inline |
| 60 | void set_ns_from_origin(struct bt_clock_snapshot *clock_snapshot) |
| 61 | { |
| 62 | if (bt_util_ns_from_origin_clock_class(clock_snapshot->clock_class, |
| 63 | clock_snapshot->value_cycles, |
| 64 | &clock_snapshot->ns_from_origin)) { |
| 65 | clock_snapshot->ns_from_origin_overflows = true; |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | static inline |
| 70 | void bt_clock_snapshot_set_raw_value(struct bt_clock_snapshot *clock_snapshot, |
| 71 | uint64_t cycles) |
| 72 | { |
| 73 | BT_ASSERT(clock_snapshot); |
| 74 | clock_snapshot->value_cycles = cycles; |
| 75 | set_ns_from_origin(clock_snapshot); |
| 76 | bt_clock_snapshot_set(clock_snapshot); |
| 77 | } |
| 78 | |
| 79 | BT_HIDDEN |
| 80 | void bt_clock_snapshot_destroy(struct bt_clock_snapshot *clock_snapshot); |
| 81 | |
| 82 | BT_HIDDEN |
| 83 | struct bt_clock_snapshot *bt_clock_snapshot_new(struct bt_clock_class *clock_class); |
| 84 | |
| 85 | BT_HIDDEN |
| 86 | struct bt_clock_snapshot *bt_clock_snapshot_create( |
| 87 | struct bt_clock_class *clock_class); |
| 88 | |
| 89 | BT_HIDDEN |
| 90 | void bt_clock_snapshot_recycle(struct bt_clock_snapshot *clock_snapshot); |
| 91 | |
| 92 | #endif /* BABELTRACE_TRACE_IR_CLOCK_SNAPSHOT_INTERNAL_H */ |