lib: return `void` when setting a simple value with no side effects
[babeltrace.git] / lib / graph / notification / stream.c
CommitLineData
043e2020 1/*
043e2020
JG
2 * Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
3 *
4 * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 */
24
90bd5941
PP
25#define BT_LOG_TAG "NOTIF-STREAM"
26#include <babeltrace/lib-logging-internal.h>
27
e22b45d0 28#include <babeltrace/assert-pre-internal.h>
3d9990ac 29#include <babeltrace/compiler-internal.h>
56e18c4c
PP
30#include <babeltrace/trace-ir/stream-internal.h>
31#include <babeltrace/trace-ir/stream-class.h>
32#include <babeltrace/trace-ir/stream-class-internal.h>
e5be10ef 33#include <babeltrace/graph/private-notification-stream.h>
b2e0c907 34#include <babeltrace/graph/notification-stream-internal.h>
f6ccaed9 35#include <babeltrace/assert-internal.h>
e5be10ef 36#include <babeltrace/object.h>
90bd5941 37#include <inttypes.h>
043e2020
JG
38
39static
40void bt_notification_stream_end_destroy(struct bt_object *obj)
41{
42 struct bt_notification_stream_end *notification =
43 (struct bt_notification_stream_end *) obj;
44
d94d92ac 45 BT_LIB_LOGD("Destroying stream end notification: %!+n",
90bd5941 46 notification);
d94d92ac 47 BT_LIB_LOGD("Putting stream: %!+s", notification->stream);
65300d60 48 BT_OBJECT_PUT_REF_AND_RESET(notification->stream);
44c440bc
PP
49
50 if (notification->default_cv) {
51 bt_clock_value_recycle(notification->default_cv);
d94d92ac 52 notification->default_cv = NULL;
44c440bc
PP
53 }
54
043e2020
JG
55 g_free(notification);
56}
57
e5be10ef 58struct bt_private_notification *bt_private_notification_stream_end_create(
d94d92ac 59 struct bt_self_notification_iterator *self_notif_iter,
e5be10ef 60 struct bt_private_stream *priv_stream)
043e2020 61{
e5be10ef 62 struct bt_stream *stream = (void *) priv_stream;
043e2020 63 struct bt_notification_stream_end *notification;
50842bdc 64 struct bt_stream_class *stream_class;
043e2020 65
d94d92ac 66 BT_ASSERT_PRE_NON_NULL(self_notif_iter, "Notification iterator");
f6ccaed9 67 BT_ASSERT_PRE_NON_NULL(stream, "Stream");
3dca2276 68 stream_class = bt_stream_borrow_class(stream);
f6ccaed9 69 BT_ASSERT(stream_class);
d94d92ac
PP
70 BT_LIB_LOGD("Creating stream end notification object: "
71 "%![stream-]+s, %![sc-]+S", stream, stream_class);
043e2020 72 notification = g_new0(struct bt_notification_stream_end, 1);
90bd5941
PP
73 if (!notification) {
74 BT_LOGE_STR("Failed to allocate one stream end notification.");
75 goto error;
76 }
77
043e2020
JG
78 bt_notification_init(&notification->parent,
79 BT_NOTIFICATION_TYPE_STREAM_END,
5c563278 80 bt_notification_stream_end_destroy, NULL);
65300d60 81 notification->stream = bt_object_get_ref(stream);
d94d92ac
PP
82 BT_LIB_LOGD("Created stream end notification object: "
83 "%![notif-]+n, %![stream-]+s, %![sc-]+S", notification,
84 stream, stream_class);
e5be10ef
PP
85
86 return (void *) &notification->parent;
043e2020
JG
87error:
88 return NULL;
89}
90
094ff7c0 91struct bt_stream *bt_notification_stream_end_borrow_stream(
043e2020
JG
92 struct bt_notification *notification)
93{
94 struct bt_notification_stream_end *stream_end;
95
f6ccaed9
PP
96 BT_ASSERT_PRE_NON_NULL(notification, "Notification");
97 BT_ASSERT_PRE_NOTIF_IS_TYPE(notification,
98 BT_NOTIFICATION_TYPE_STREAM_END);
043e2020
JG
99 stream_end = container_of(notification,
100 struct bt_notification_stream_end, parent);
094ff7c0 101 return stream_end->stream;
043e2020 102}
3230ee6b 103
e5be10ef
PP
104struct bt_private_stream *bt_private_notification_stream_end_borrow_stream(
105 struct bt_private_notification *notification)
106{
107 return (void *) bt_notification_stream_end_borrow_stream(
108 (void *) notification);
109}
110
140e6d94 111void bt_private_notification_stream_end_set_default_clock_value(
e5be10ef
PP
112 struct bt_private_notification *priv_notif,
113 uint64_t value_cycles)
e22b45d0 114{
e5be10ef 115 struct bt_notification *notif = (void *) priv_notif;
44c440bc 116 struct bt_notification_stream_end *se_notif = (void *) notif;
e22b45d0
PP
117
118 BT_ASSERT_PRE_NON_NULL(notif, "Notification");
e22b45d0
PP
119 BT_ASSERT_PRE_HOT(notif, "Notification", ": %!+n", notif);
120 BT_ASSERT_PRE_NOTIF_IS_TYPE(notif, BT_NOTIFICATION_TYPE_STREAM_END);
44c440bc
PP
121 BT_ASSERT_PRE(se_notif->stream->class->default_clock_class,
122 "Notification's stream class has no default clock class: "
123 "%![notif-]+n, %![sc-]+S", notif, se_notif->stream->class);
124
140e6d94
PP
125 /* TODO: have the object already created */
126 se_notif->default_cv = bt_clock_value_create(
127 se_notif->stream->class->default_clock_class);
128 BT_ASSERT(se_notif->default_cv);
44c440bc
PP
129 bt_clock_value_set_value_inline(se_notif->default_cv, value_cycles);
130 BT_LIB_LOGV("Set notification's default clock value: %![notif-]+n, "
131 "value=%" PRIu64, value_cycles);
e22b45d0
PP
132}
133
134struct bt_clock_value *bt_notification_stream_end_borrow_default_clock_value(
135 struct bt_notification *notif)
136{
137 struct bt_notification_stream_end *stream_end = (void *) notif;
e22b45d0
PP
138
139 BT_ASSERT_PRE_NON_NULL(notif, "Notification");
140 BT_ASSERT_PRE_NOTIF_IS_TYPE(notif, BT_NOTIFICATION_TYPE_STREAM_END);
44c440bc 141 return stream_end->default_cv;
e22b45d0
PP
142}
143
3230ee6b
PP
144static
145void bt_notification_stream_begin_destroy(struct bt_object *obj)
146{
147 struct bt_notification_stream_begin *notification =
148 (struct bt_notification_stream_begin *) obj;
149
d94d92ac 150 BT_LIB_LOGD("Destroying stream beginning notification: %!+n",
90bd5941 151 notification);
d94d92ac 152 BT_LIB_LOGD("Putting stream: %!+s", notification->stream);
65300d60 153 BT_OBJECT_PUT_REF_AND_RESET(notification->stream);
44c440bc
PP
154
155 if (notification->default_cv) {
156 bt_clock_value_recycle(notification->default_cv);
d94d92ac 157 notification->default_cv = NULL;
44c440bc
PP
158 }
159
3230ee6b
PP
160 g_free(notification);
161}
162
e5be10ef 163struct bt_private_notification *bt_private_notification_stream_begin_create(
d94d92ac 164 struct bt_self_notification_iterator *self_notif_iter,
e5be10ef 165 struct bt_private_stream *priv_stream)
3230ee6b 166{
e5be10ef 167 struct bt_stream *stream = (void *) priv_stream;
3230ee6b 168 struct bt_notification_stream_begin *notification;
50842bdc 169 struct bt_stream_class *stream_class;
3230ee6b 170
d94d92ac 171 BT_ASSERT_PRE_NON_NULL(self_notif_iter, "Notification iterator");
f6ccaed9 172 BT_ASSERT_PRE_NON_NULL(stream, "Stream");
3dca2276 173 stream_class = bt_stream_borrow_class(stream);
f6ccaed9 174 BT_ASSERT(stream_class);
d94d92ac
PP
175 BT_LIB_LOGD("Creating stream beginning notification object: "
176 "%![stream-]+s, %![sc-]+S", stream, stream_class);
3230ee6b 177 notification = g_new0(struct bt_notification_stream_begin, 1);
90bd5941
PP
178 if (!notification) {
179 BT_LOGE_STR("Failed to allocate one stream beginning notification.");
180 goto error;
181 }
182
3230ee6b
PP
183 bt_notification_init(&notification->parent,
184 BT_NOTIFICATION_TYPE_STREAM_BEGIN,
5c563278 185 bt_notification_stream_begin_destroy, NULL);
65300d60 186 notification->stream = bt_object_get_ref(stream);
d94d92ac
PP
187 BT_LIB_LOGD("Created stream beginning notification object: "
188 "%![notif-]+n, %![stream-]+s, %![sc-]+S", notification,
189 stream, stream_class);
e5be10ef 190 return (void *) &notification->parent;
3230ee6b
PP
191error:
192 return NULL;
193}
194
094ff7c0 195struct bt_stream *bt_notification_stream_begin_borrow_stream(
3230ee6b
PP
196 struct bt_notification *notification)
197{
198 struct bt_notification_stream_begin *stream_begin;
199
f6ccaed9
PP
200 BT_ASSERT_PRE_NON_NULL(notification, "Notification");
201 BT_ASSERT_PRE_NOTIF_IS_TYPE(notification,
202 BT_NOTIFICATION_TYPE_STREAM_BEGIN);
3230ee6b
PP
203 stream_begin = container_of(notification,
204 struct bt_notification_stream_begin, parent);
094ff7c0 205 return stream_begin->stream;
3230ee6b 206}
e22b45d0 207
e5be10ef
PP
208struct bt_private_stream *bt_private_notification_stream_begin_borrow_stream(
209 struct bt_private_notification *notification)
210{
211 return (void *) bt_notification_stream_begin_borrow_stream(
212 (void *) notification);
213}
214
140e6d94 215void bt_private_notification_stream_begin_set_default_clock_value(
e5be10ef
PP
216 struct bt_private_notification *priv_notif,
217 uint64_t value_cycles)
e22b45d0 218{
e5be10ef 219 struct bt_notification *notif = (void *) priv_notif;
44c440bc 220 struct bt_notification_stream_begin *sb_notif = (void *) notif;
e22b45d0
PP
221
222 BT_ASSERT_PRE_NON_NULL(notif, "Notification");
e22b45d0
PP
223 BT_ASSERT_PRE_HOT(notif, "Notification", ": %!+n", notif);
224 BT_ASSERT_PRE_NOTIF_IS_TYPE(notif, BT_NOTIFICATION_TYPE_STREAM_BEGIN);
44c440bc
PP
225 BT_ASSERT_PRE(sb_notif->stream->class->default_clock_class,
226 "Notification's stream class has no default clock class: "
227 "%![notif-]+n, %![sc-]+S", notif, sb_notif->stream->class);
228
140e6d94
PP
229 /* TODO: have the object already created */
230 sb_notif->default_cv = bt_clock_value_create(
231 sb_notif->stream->class->default_clock_class);
232 BT_ASSERT(sb_notif->default_cv);
44c440bc
PP
233 bt_clock_value_set_value_inline(sb_notif->default_cv, value_cycles);
234 BT_LIB_LOGV("Set notification's default clock value: %![notif-]+n, "
235 "value=%" PRIu64, value_cycles);
e22b45d0
PP
236}
237
238struct bt_clock_value *bt_notification_stream_begin_borrow_default_clock_value(
239 struct bt_notification *notif)
240{
241 struct bt_notification_stream_begin *stream_begin = (void *) notif;
e22b45d0
PP
242
243 BT_ASSERT_PRE_NON_NULL(notif, "Notification");
244 BT_ASSERT_PRE_NOTIF_IS_TYPE(notif, BT_NOTIFICATION_TYPE_STREAM_BEGIN);
44c440bc 245 return stream_begin->default_cv;
e22b45d0 246}
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