Logging: define `BT_LOG*_SUPPORTED` when logging is supported
[babeltrace.git] / src / lib / graph / message / stream.c
1 /*
2 * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
3 * Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a copy
6 * of this software and associated documentation files (the "Software"), to deal
7 * in the Software without restriction, including without limitation the rights
8 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 * copies of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 */
23
24 #define BT_LOG_TAG "LIB/MSG-STREAM"
25 #include "lib/lib-logging.h"
26
27 #include "lib/assert-pre.h"
28 #include "compat/compiler.h"
29 #include <babeltrace2/trace-ir/clock-snapshot-const.h>
30 #include "lib/trace-ir/stream.h"
31 #include <babeltrace2/trace-ir/stream-class.h>
32 #include "lib/trace-ir/stream-class.h"
33 #include <babeltrace2/graph/message-stream-beginning.h>
34 #include <babeltrace2/graph/message-stream-end.h>
35 #include <babeltrace2/graph/message-stream-beginning-const.h>
36 #include <babeltrace2/graph/message-stream-end-const.h>
37 #include "common/assert.h"
38 #include <inttypes.h>
39
40 #include "stream.h"
41
42 static
43 void destroy_stream_message(struct bt_object *obj)
44 {
45 struct bt_message_stream *message = (void *) obj;
46
47 BT_LIB_LOGD("Destroying stream message: %!+n", message);
48 BT_LIB_LOGD("Putting stream: %!+s", message->stream);
49 BT_OBJECT_PUT_REF_AND_RESET(message->stream);
50 g_free(message);
51 }
52
53 static inline
54 struct bt_message *create_stream_message(
55 struct bt_self_message_iterator *self_msg_iter,
56 struct bt_stream *stream, enum bt_message_type type)
57 {
58 struct bt_message_stream *message;
59 struct bt_stream_class *stream_class;
60
61 BT_ASSERT_PRE_NON_NULL(self_msg_iter, "Message iterator");
62 BT_ASSERT_PRE_NON_NULL(stream, "Stream");
63 stream_class = bt_stream_borrow_class(stream);
64 BT_ASSERT(stream_class);
65 BT_LIB_LOGD("Creating stream message object: "
66 "type=%s, %![stream-]+s, %![sc-]+S",
67 bt_message_type_string(type), stream, stream_class);
68 message = g_new0(struct bt_message_stream, 1);
69 if (!message) {
70 BT_LOGE_STR("Failed to allocate one stream message.");
71 goto error;
72 }
73
74 bt_message_init(&message->parent, type,
75 destroy_stream_message, NULL);
76 message->stream = stream;
77 bt_object_get_no_null_check(message->stream);
78 BT_LIB_LOGD("Created stream message object: "
79 "%![msg-]+n, %![stream-]+s, %![sc-]+S", message,
80 stream, stream_class);
81
82 return (void *) &message->parent;
83
84 error:
85 return NULL;
86 }
87
88 struct bt_message *bt_message_stream_beginning_create(
89 struct bt_self_message_iterator *self_msg_iter,
90 const struct bt_stream *stream)
91 {
92 return create_stream_message(self_msg_iter, (void *) stream,
93 BT_MESSAGE_TYPE_STREAM_BEGINNING);
94 }
95
96 struct bt_message *bt_message_stream_end_create(
97 struct bt_self_message_iterator *self_msg_iter,
98 const struct bt_stream *stream)
99 {
100 return create_stream_message(self_msg_iter, (void *) stream,
101 BT_MESSAGE_TYPE_STREAM_END);
102 }
103
104 static inline
105 struct bt_stream *borrow_stream_message_stream(struct bt_message *message)
106 {
107 struct bt_message_stream *stream_msg;
108
109 BT_ASSERT(message);
110 stream_msg = (void *) message;
111 return stream_msg->stream;
112 }
113
114 struct bt_stream *bt_message_stream_beginning_borrow_stream(
115 struct bt_message *message)
116 {
117 BT_ASSERT_PRE_NON_NULL(message, "Message");
118 BT_ASSERT_PRE_MSG_IS_TYPE(message, BT_MESSAGE_TYPE_STREAM_BEGINNING);
119 return borrow_stream_message_stream(message);
120 }
121
122 struct bt_stream *bt_message_stream_end_borrow_stream(
123 struct bt_message *message)
124 {
125 BT_ASSERT_PRE_NON_NULL(message, "Message");
126 BT_ASSERT_PRE_MSG_IS_TYPE(message, BT_MESSAGE_TYPE_STREAM_END);
127 return borrow_stream_message_stream(message);
128 }
129
130 const struct bt_stream *bt_message_stream_beginning_borrow_stream_const(
131 const struct bt_message *message)
132 {
133 return bt_message_stream_beginning_borrow_stream(
134 (void *) message);
135 }
136
137 const struct bt_stream *bt_message_stream_end_borrow_stream_const(
138 const struct bt_message *message)
139 {
140 return bt_message_stream_end_borrow_stream(
141 (void *) message);
142 }
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