lib: rename include dir to babeltrace2
[babeltrace.git] / 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 "PACKET-CONTEXT-FIELD"
24 #include <babeltrace2/lib-logging-internal.h>
25
26 #include <babeltrace2/assert-pre-internal.h>
27 #include <babeltrace2/trace-ir/packet-context-field.h>
28 #include <babeltrace2/trace-ir/stream-class-internal.h>
29 #include <babeltrace2/trace-ir/field-internal.h>
30 #include <babeltrace2/trace-ir/field-wrapper-internal.h>
31 #include <glib.h>
32
33 struct bt_field *bt_packet_context_field_borrow_field(
34 struct bt_packet_context_field *context_field)
35 {
36 struct bt_field_wrapper *field_wrapper = (void *) context_field;
37
38 BT_ASSERT_PRE_NON_NULL(field_wrapper, "Packet context field");
39 return (void *) field_wrapper->field;
40 }
41
42 void bt_packet_context_field_release(
43 struct bt_packet_context_field *context_field)
44 {
45 struct bt_field_wrapper *field_wrapper = (void *) context_field;
46
47 BT_ASSERT_PRE_NON_NULL(field_wrapper, "Packet context field");
48
49 /*
50 * Do not recycle because the pool could be destroyed at this
51 * point. This function is only called when there's an error
52 * anyway because the goal of a packet context field wrapper is
53 * to eventually move it to a packet with
54 * bt_packet_move_context() after creating it.
55 */
56 bt_field_wrapper_destroy(field_wrapper);
57 }
58
59 struct bt_packet_context_field *bt_packet_context_field_create(
60 struct bt_stream_class *stream_class)
61 {
62 struct bt_field_wrapper *field_wrapper;
63
64 BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
65 BT_ASSERT_PRE(stream_class->frozen,
66 "Stream class is not part of a trace class: %!+S",
67 stream_class);
68 BT_ASSERT_PRE(stream_class->packet_context_fc,
69 "Stream class has no packet context field class: %!+S",
70 stream_class);
71 field_wrapper = bt_field_wrapper_create(
72 &stream_class->packet_context_field_pool,
73 (void *) stream_class->packet_context_fc);
74 if (!field_wrapper) {
75 BT_LIB_LOGE("Cannot allocate one packet context field from stream class: "
76 "%![sc-]+S", stream_class);
77 goto error;
78 }
79
80 BT_ASSERT(field_wrapper->field);
81 bt_stream_class_freeze(stream_class);
82 goto end;
83
84 error:
85 if (field_wrapper) {
86 bt_field_wrapper_destroy(field_wrapper);
87 field_wrapper = NULL;
88 }
89
90 end:
91 return (void *) field_wrapper;
92 }
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