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1 | #ifndef BABELTRACE_GRAPH_CLOCK_SNAPSHOT_SET_H |
2 | #define BABELTRACE_GRAPH_CLOCK_SNAPSHOT_SET_H | |
3 | ||
4 | /* | |
5 | * Copyright 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 <stdint.h> | |
27 | #include <glib.h> | |
578e048b MJ |
28 | #include "common/assert.h" |
29 | ||
30 | #include "clock-snapshot.h" | |
31 | #include "clock-class.h" | |
605e1019 PP |
32 | |
33 | struct bt_clock_snapshot_set { | |
34 | /* Unique objects owned by this */ | |
35 | GPtrArray *clock_snapshots; | |
36 | ||
37 | /* Weak; points to one of the clock snapshots above */ | |
38 | struct bt_clock_snapshot *default_cs; | |
39 | }; | |
40 | ||
41 | static inline | |
42 | int bt_clock_snapshot_set_initialize(struct bt_clock_snapshot_set *cs_set) | |
43 | { | |
44 | int ret = 0; | |
45 | ||
46 | cs_set->clock_snapshots = g_ptr_array_sized_new(1); | |
47 | if (!cs_set->clock_snapshots) { | |
48 | #ifdef BT_LOGE_STR | |
49 | BT_LOGE_STR("Failed to allocate one GPtrArray."); | |
50 | #endif | |
51 | ||
52 | ret = -1; | |
53 | goto end; | |
54 | } | |
55 | ||
56 | cs_set->default_cs = NULL; | |
57 | ||
58 | end: | |
59 | return ret; | |
60 | } | |
61 | ||
62 | static inline | |
63 | void bt_clock_snapshot_set_reset(struct bt_clock_snapshot_set *cs_set) | |
64 | { | |
65 | uint64_t i; | |
66 | ||
67 | BT_ASSERT(cs_set); | |
68 | BT_ASSERT(cs_set->clock_snapshots); | |
69 | ||
70 | for (i = 0; i < cs_set->clock_snapshots->len; i++) { | |
71 | struct bt_clock_snapshot *cs = cs_set->clock_snapshots->pdata[i]; | |
72 | ||
73 | BT_ASSERT(cs); | |
74 | bt_clock_snapshot_reset(cs); | |
75 | } | |
76 | ||
77 | cs_set->default_cs = NULL; | |
78 | } | |
79 | ||
80 | static inline | |
81 | void bt_clock_snapshot_set_finalize(struct bt_clock_snapshot_set *cs_set) | |
82 | { | |
83 | uint64_t i; | |
84 | ||
85 | BT_ASSERT(cs_set); | |
86 | ||
87 | if (cs_set->clock_snapshots) { | |
88 | for (i = 0; i < cs_set->clock_snapshots->len; i++) { | |
89 | struct bt_clock_snapshot *cs = | |
90 | cs_set->clock_snapshots->pdata[i]; | |
91 | ||
92 | BT_ASSERT(cs); | |
93 | bt_clock_snapshot_recycle(cs); | |
94 | } | |
95 | ||
96 | g_ptr_array_free(cs_set->clock_snapshots, TRUE); | |
97 | } | |
98 | ||
99 | cs_set->default_cs = NULL; | |
100 | } | |
101 | ||
102 | static inline | |
103 | int bt_clock_snapshot_set_set_clock_snapshot(struct bt_clock_snapshot_set *cs_set, | |
104 | struct bt_clock_class *cc, uint64_t raw_value) | |
105 | { | |
106 | int ret = 0; | |
107 | struct bt_clock_snapshot *clock_snapshot = NULL; | |
108 | uint64_t i; | |
109 | ||
110 | BT_ASSERT(cs_set); | |
111 | BT_ASSERT(cc); | |
112 | ||
113 | /* | |
114 | * Check if we already have a value for this clock class. | |
115 | * | |
116 | * TODO: When we have many clock classes, make this more | |
117 | * efficient. | |
118 | */ | |
119 | for (i = 0; i < cs_set->clock_snapshots->len; i++) { | |
120 | struct bt_clock_snapshot *cs = cs_set->clock_snapshots->pdata[i]; | |
121 | ||
122 | BT_ASSERT(cs); | |
123 | ||
124 | if (cs->clock_class == cc) { | |
125 | clock_snapshot = cs; | |
126 | break; | |
127 | } | |
128 | } | |
129 | ||
130 | if (!clock_snapshot) { | |
131 | clock_snapshot = bt_clock_snapshot_create(cc); | |
132 | if (!clock_snapshot) { | |
133 | #ifdef BT_LIB_LOGE | |
134 | BT_LIB_LOGE("Cannot create a clock snapshot from a clock class: " | |
135 | "%![cc-]+K", cc); | |
136 | #endif | |
137 | ||
138 | ret = -1; | |
139 | goto end; | |
140 | } | |
141 | ||
142 | g_ptr_array_add(cs_set->clock_snapshots, clock_snapshot); | |
143 | } | |
144 | ||
f0ebeace | 145 | bt_clock_snapshot_set_raw_value(clock_snapshot, raw_value); |
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146 | |
147 | end: | |
148 | return ret; | |
149 | } | |
150 | ||
151 | static inline | |
152 | void bt_clock_snapshot_set_set_default_clock_snapshot( | |
153 | struct bt_clock_snapshot_set *cs_set, uint64_t raw_value) | |
154 | { | |
155 | BT_ASSERT(cs_set); | |
156 | BT_ASSERT(cs_set->default_cs); | |
f0ebeace | 157 | bt_clock_snapshot_set_raw_value(cs_set->default_cs, raw_value); |
605e1019 PP |
158 | } |
159 | ||
160 | #endif /* BABELTRACE_GRAPH_CLOCK_SNAPSHOT_SET_H */ |