2 * Copyright 2018 Philippe Proulx <pproulx@efficios.com>
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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
23 #define BT_LOG_TAG "PACKET-CONTEXT-FIELD"
24 #include <babeltrace2/lib-logging-internal.h>
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>
33 struct bt_field
*bt_packet_context_field_borrow_field(
34 struct bt_packet_context_field
*context_field
)
36 struct bt_field_wrapper
*field_wrapper
= (void *) context_field
;
38 BT_ASSERT_PRE_NON_NULL(field_wrapper
, "Packet context field");
39 return (void *) field_wrapper
->field
;
42 void bt_packet_context_field_release(
43 struct bt_packet_context_field
*context_field
)
45 struct bt_field_wrapper
*field_wrapper
= (void *) context_field
;
47 BT_ASSERT_PRE_NON_NULL(field_wrapper
, "Packet context field");
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.
56 bt_field_wrapper_destroy(field_wrapper
);
59 struct bt_packet_context_field
*bt_packet_context_field_create(
60 struct bt_stream_class
*stream_class
)
62 struct bt_field_wrapper
*field_wrapper
;
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",
68 BT_ASSERT_PRE(stream_class
->packet_context_fc
,
69 "Stream class has no packet context field class: %!+S",
71 field_wrapper
= bt_field_wrapper_create(
72 &stream_class
->packet_context_field_pool
,
73 (void *) stream_class
->packet_context_fc
);
75 BT_LIB_LOGE("Cannot allocate one packet context field from stream class: "
76 "%![sc-]+S", stream_class
);
80 BT_ASSERT(field_wrapper
->field
);
81 bt_stream_class_freeze(stream_class
);
86 bt_field_wrapper_destroy(field_wrapper
);
91 return (void *) field_wrapper
;