Make API CTF-agnostic
[babeltrace.git] / lib / ctf-ir / event-header-field.c
CommitLineData
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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 "EVENT-HEADER-FIELD"
24#include <babeltrace/lib-logging-internal.h>
25
26#include <babeltrace/assert-pre-internal.h>
27#include <babeltrace/ctf-ir/event-header-field.h>
44c440bc 28#include <babeltrace/ctf-ir/stream-class-internal.h>
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29#include <babeltrace/ctf-ir/fields-internal.h>
30#include <babeltrace/ctf-ir/field-wrapper-internal.h>
31#include <glib.h>
32
33struct bt_field *bt_event_header_field_borrow_field(
34 struct bt_event_header_field *header_field)
35{
36 struct bt_field_wrapper *field_wrapper = (void *) header_field;
37
38 BT_ASSERT_PRE_NON_NULL(field_wrapper, "Event header field");
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PP
39 return (void *) field_wrapper->field;
40}
41
42void bt_event_header_field_release(struct bt_event_header_field *header_field)
43{
44 struct bt_field_wrapper *field_wrapper = (void *) header_field;
45
46 BT_ASSERT_PRE_NON_NULL(field_wrapper, "Event header field");
47
48 /*
49 * Do not recycle because the pool could be destroyed at this
50 * point. This function is only called when there's an error
51 * anyway because the goal of an event header field wrapper is
52 * to eventually move it to an event with bt_event_move_header()
53 * after creating it.
54 */
55 bt_field_wrapper_destroy(field_wrapper);
56}
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PP
57
58struct bt_event_header_field *bt_event_header_field_create(
59 struct bt_stream_class *stream_class)
60{
61 struct bt_field_wrapper *field_wrapper;
62
63 BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
64 BT_ASSERT_PRE(bt_stream_class_borrow_trace_inline(stream_class),
65 "Stream class is not part of a trace: %!+S", stream_class);
66 BT_ASSERT_PRE(stream_class->event_header_ft,
67 "Stream class has no event header field type: %!+S",
68 stream_class);
69 field_wrapper = bt_field_wrapper_create(
70 &stream_class->event_header_field_pool,
71 (void *) stream_class->event_header_ft);
72 if (!field_wrapper) {
73 BT_LIB_LOGE("Cannot allocate one event header 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
82error:
83 if (field_wrapper) {
84 bt_field_wrapper_destroy(field_wrapper);
85 field_wrapper = NULL;
86 }
87
88end:
89 return (void *) field_wrapper;
90}
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