lib: use object pool for event and packet notifications
[babeltrace.git] / lib / graph / notification / stream.c
1 /*
2 * Babeltrace Plug-in Stream-related Notifications
3 *
4 * Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
5 *
6 * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
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 THE
21 * 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 THE
24 * SOFTWARE.
25 */
26
27 #define BT_LOG_TAG "NOTIF-STREAM"
28 #include <babeltrace/lib-logging-internal.h>
29
30 #include <babeltrace/compiler-internal.h>
31 #include <babeltrace/ctf-ir/stream-internal.h>
32 #include <babeltrace/ctf-ir/stream-class.h>
33 #include <babeltrace/graph/notification-stream-internal.h>
34 #include <babeltrace/assert-internal.h>
35 #include <babeltrace/assert-pre-internal.h>
36 #include <inttypes.h>
37
38 static
39 void bt_notification_stream_end_destroy(struct bt_object *obj)
40 {
41 struct bt_notification_stream_end *notification =
42 (struct bt_notification_stream_end *) obj;
43
44 BT_LOGD("Destroying stream end notification: addr=%p",
45 notification);
46 BT_LOGD_STR("Putting stream.");
47 BT_PUT(notification->stream);
48 g_free(notification);
49 }
50
51 struct bt_notification *bt_notification_stream_end_create(
52 struct bt_graph *graph, struct bt_stream *stream)
53 {
54 struct bt_notification_stream_end *notification;
55 struct bt_stream_class *stream_class;
56
57 BT_ASSERT_PRE_NON_NULL(stream, "Stream");
58 stream_class = bt_stream_borrow_class(stream);
59 BT_ASSERT(stream_class);
60 BT_LOGD("Creating stream end notification object: "
61 "stream-addr=%p, stream-name=\"%s\", "
62 "stream-class-addr=%p, stream-class-name=\"%s\", "
63 "stream-class-id=%" PRId64,
64 stream, bt_stream_get_name(stream),
65 stream_class,
66 bt_stream_class_get_name(stream_class),
67 bt_stream_class_get_id(stream_class));
68 notification = g_new0(struct bt_notification_stream_end, 1);
69 if (!notification) {
70 BT_LOGE_STR("Failed to allocate one stream end notification.");
71 goto error;
72 }
73
74 bt_notification_init(&notification->parent,
75 BT_NOTIFICATION_TYPE_STREAM_END,
76 bt_notification_stream_end_destroy, NULL);
77 notification->stream = bt_get(stream);
78 BT_LOGD("Created stream end notification object: "
79 "stream-addr=%p, stream-name=\"%s\", "
80 "stream-class-addr=%p, stream-class-name=\"%s\", "
81 "stream-class-id=%" PRId64 ", addr=%p",
82 stream, bt_stream_get_name(stream),
83 stream_class,
84 bt_stream_class_get_name(stream_class),
85 bt_stream_class_get_id(stream_class), notification);
86 return &notification->parent;
87 error:
88 return NULL;
89 }
90
91 struct bt_stream *bt_notification_stream_end_borrow_stream(
92 struct bt_notification *notification)
93 {
94 struct bt_notification_stream_end *stream_end;
95
96 BT_ASSERT_PRE_NON_NULL(notification, "Notification");
97 BT_ASSERT_PRE_NOTIF_IS_TYPE(notification,
98 BT_NOTIFICATION_TYPE_STREAM_END);
99 stream_end = container_of(notification,
100 struct bt_notification_stream_end, parent);
101 return stream_end->stream;
102 }
103
104 static
105 void bt_notification_stream_begin_destroy(struct bt_object *obj)
106 {
107 struct bt_notification_stream_begin *notification =
108 (struct bt_notification_stream_begin *) obj;
109
110 BT_LOGD("Destroying stream beginning notification: addr=%p",
111 notification);
112 BT_LOGD_STR("Putting stream.");
113 BT_PUT(notification->stream);
114 g_free(notification);
115 }
116
117 struct bt_notification *bt_notification_stream_begin_create(
118 struct bt_graph *graph, struct bt_stream *stream)
119 {
120 struct bt_notification_stream_begin *notification;
121 struct bt_stream_class *stream_class;
122
123 BT_ASSERT_PRE_NON_NULL(stream, "Stream");
124 stream_class = bt_stream_borrow_class(stream);
125 BT_ASSERT(stream_class);
126 BT_LOGD("Creating stream beginning notification object: "
127 "stream-addr=%p, stream-name=\"%s\", "
128 "stream-class-addr=%p, stream-class-name=\"%s\", "
129 "stream-class-id=%" PRId64,
130 stream, bt_stream_get_name(stream),
131 stream_class,
132 bt_stream_class_get_name(stream_class),
133 bt_stream_class_get_id(stream_class));
134 notification = g_new0(struct bt_notification_stream_begin, 1);
135 if (!notification) {
136 BT_LOGE_STR("Failed to allocate one stream beginning notification.");
137 goto error;
138 }
139
140 bt_notification_init(&notification->parent,
141 BT_NOTIFICATION_TYPE_STREAM_BEGIN,
142 bt_notification_stream_begin_destroy, NULL);
143 notification->stream = bt_get(stream);
144 BT_LOGD("Created stream beginning notification object: "
145 "stream-addr=%p, stream-name=\"%s\", "
146 "stream-class-addr=%p, stream-class-name=\"%s\", "
147 "stream-class-id=%" PRId64 ", addr=%p",
148 stream, bt_stream_get_name(stream),
149 stream_class,
150 bt_stream_class_get_name(stream_class),
151 bt_stream_class_get_id(stream_class), notification);
152 return &notification->parent;
153 error:
154 return NULL;
155 }
156
157 struct bt_stream *bt_notification_stream_begin_borrow_stream(
158 struct bt_notification *notification)
159 {
160 struct bt_notification_stream_begin *stream_begin;
161
162 BT_ASSERT_PRE_NON_NULL(notification, "Notification");
163 BT_ASSERT_PRE_NOTIF_IS_TYPE(notification,
164 BT_NOTIFICATION_TYPE_STREAM_BEGIN);
165 stream_begin = container_of(notification,
166 struct bt_notification_stream_begin, parent);
167 return stream_begin->stream;
168 }
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