lib: add internal BT_LIB_LOG*_APPEND_CAUSE() macros
[babeltrace.git] / src / lib / trace-ir / packet-context-field.c
1 /*
2 * Copyright 2018 Philippe Proulx <pproulx@efficios.com>
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 */
22
23 #define BT_LOG_TAG "LIB/PACKET-CONTEXT-FIELD"
24 #include "lib/logging.h"
25
26 #include "lib/assert-pre.h"
27 #include <babeltrace2/trace-ir/packet-context-field.h>
28 #include <glib.h>
29
30 #include "stream-class.h"
31 #include "field.h"
32 #include "field-wrapper.h"
33
34 struct bt_field *bt_packet_context_field_borrow_field(
35 struct bt_packet_context_field *context_field)
36 {
37 struct bt_field_wrapper *field_wrapper = (void *) context_field;
38
39 BT_ASSERT_PRE_NON_NULL(field_wrapper, "Packet context field");
40 return (void *) field_wrapper->field;
41 }
42
43 void bt_packet_context_field_release(
44 struct bt_packet_context_field *context_field)
45 {
46 struct bt_field_wrapper *field_wrapper = (void *) context_field;
47
48 BT_ASSERT_PRE_NON_NULL(field_wrapper, "Packet context field");
49
50 /*
51 * Do not recycle because the pool could be destroyed at this
52 * point. This function is only called when there's an error
53 * anyway because the goal of a packet context field wrapper is
54 * to eventually move it to a packet with
55 * bt_packet_move_context() after creating it.
56 */
57 bt_field_wrapper_destroy(field_wrapper);
58 }
59
60 struct bt_packet_context_field *bt_packet_context_field_create(
61 struct bt_stream_class *stream_class)
62 {
63 struct bt_field_wrapper *field_wrapper;
64
65 BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
66 BT_ASSERT_PRE(stream_class->packet_context_fc,
67 "Stream class has no packet context field class: %!+S",
68 stream_class);
69 field_wrapper = bt_field_wrapper_create(
70 &stream_class->packet_context_field_pool,
71 (void *) stream_class->packet_context_fc);
72 if (!field_wrapper) {
73 BT_LIB_LOGE("Cannot allocate one packet context field from stream class: "
74 "%![sc-]+S", stream_class);
75 goto error;
76 }
77
78 BT_ASSERT(field_wrapper->field);
79 bt_stream_class_freeze(stream_class);
80 goto end;
81
82 error:
83 if (field_wrapper) {
84 bt_field_wrapper_destroy(field_wrapper);
85 field_wrapper = NULL;
86 }
87
88 end:
89 return (void *) field_wrapper;
90 }
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