Commit | Line | Data |
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1c822dfb JG |
1 | /* |
2 | * packet.c | |
3 | * | |
4 | * Babeltrace CTF IR - Stream packet | |
5 | * | |
6 | * Copyright 2016 Philippe Proulx <pproulx@efficios.com> | |
7 | * | |
8 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
9 | * of this software and associated documentation files (the "Software"), to deal | |
10 | * in the Software without restriction, including without limitation the rights | |
11 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
12 | * copies of the Software, and to permit persons to whom the Software is | |
13 | * furnished to do so, subject to the following conditions: | |
14 | * | |
15 | * The above copyright notice and this permission notice shall be included in | |
16 | * all copies or substantial portions of the Software. | |
17 | * | |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
21 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
22 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
23 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
24 | * SOFTWARE. | |
25 | */ | |
26 | ||
27 | #include <babeltrace/ctf-ir/fields-internal.h> | |
28 | #include <babeltrace/ctf-ir/packet.h> | |
29 | #include <babeltrace/ctf-ir/packet-internal.h> | |
30 | #include <babeltrace/ctf-ir/trace.h> | |
31 | #include <babeltrace/ctf-ir/stream-class-internal.h> | |
32 | #include <babeltrace/ctf-ir/stream-class.h> | |
33 | #include <babeltrace/ctf-ir/stream.h> | |
34 | #include <babeltrace/ctf-ir/stream-internal.h> | |
35 | #include <babeltrace/ctf-ir/trace-internal.h> | |
36 | #include <babeltrace/object-internal.h> | |
37 | #include <babeltrace/ref.h> | |
38 | ||
55732d44 | 39 | BT_HIDDEN |
1c822dfb JG |
40 | struct bt_ctf_stream *bt_ctf_packet_get_stream(struct bt_ctf_packet *packet) |
41 | { | |
42 | return packet ? bt_get(packet->stream) : NULL; | |
43 | } | |
44 | ||
55732d44 | 45 | BT_HIDDEN |
1c822dfb JG |
46 | struct bt_ctf_field *bt_ctf_packet_get_header( |
47 | struct bt_ctf_packet *packet) | |
48 | { | |
49 | return packet ? bt_get(packet->header) : NULL; | |
50 | } | |
51 | ||
55732d44 | 52 | BT_HIDDEN |
1c822dfb JG |
53 | int bt_ctf_packet_set_header(struct bt_ctf_packet *packet, |
54 | struct bt_ctf_field *header) | |
55 | { | |
56 | int ret = 0; | |
57 | struct bt_ctf_trace *trace = NULL; | |
58 | struct bt_ctf_stream_class *stream_class = NULL; | |
59 | struct bt_ctf_field_type *header_field_type = NULL; | |
60 | struct bt_ctf_field_type *expected_header_field_type = NULL; | |
61 | ||
62 | if (!packet || !header || packet->frozen) { | |
63 | ret = -1; | |
64 | goto end; | |
65 | } | |
66 | ||
67 | stream_class = bt_ctf_stream_get_class(packet->stream); | |
68 | assert(stream_class); | |
69 | trace = bt_ctf_stream_class_get_trace(stream_class); | |
70 | assert(trace); | |
71 | header_field_type = bt_ctf_field_get_type(header); | |
72 | assert(header_field_type); | |
73 | expected_header_field_type = bt_ctf_trace_get_packet_header_type(trace); | |
74 | ||
75 | if (bt_ctf_field_type_compare(header_field_type, | |
76 | expected_header_field_type)) { | |
77 | ret = -1; | |
78 | goto end; | |
79 | } | |
80 | ||
81 | bt_put(packet->header); | |
82 | packet->header = bt_get(header); | |
83 | ||
84 | end: | |
85 | BT_PUT(trace); | |
86 | BT_PUT(stream_class); | |
87 | BT_PUT(header_field_type); | |
88 | BT_PUT(expected_header_field_type); | |
89 | ||
90 | return ret; | |
91 | } | |
92 | ||
55732d44 | 93 | BT_HIDDEN |
1c822dfb JG |
94 | struct bt_ctf_field *bt_ctf_packet_get_context( |
95 | struct bt_ctf_packet *packet) | |
96 | { | |
97 | return packet ? bt_get(packet->context) : NULL; | |
98 | } | |
99 | ||
55732d44 | 100 | BT_HIDDEN |
1c822dfb JG |
101 | int bt_ctf_packet_set_context(struct bt_ctf_packet *packet, |
102 | struct bt_ctf_field *context) | |
103 | { | |
104 | int ret = 0; | |
105 | struct bt_ctf_stream_class *stream_class = NULL; | |
106 | struct bt_ctf_field_type *context_field_type = NULL; | |
107 | struct bt_ctf_field_type *expected_context_field_type = NULL; | |
108 | ||
109 | if (!packet || !context || packet->frozen) { | |
110 | ret = -1; | |
111 | goto end; | |
112 | } | |
113 | ||
114 | stream_class = bt_ctf_stream_get_class(packet->stream); | |
115 | assert(stream_class); | |
116 | context_field_type = bt_ctf_field_get_type(context); | |
117 | assert(context_field_type); | |
118 | expected_context_field_type = | |
119 | bt_ctf_stream_class_get_packet_context_type(stream_class); | |
120 | ||
121 | if (bt_ctf_field_type_compare(context_field_type, | |
122 | expected_context_field_type)) { | |
123 | ret = -1; | |
124 | goto end; | |
125 | } | |
126 | ||
127 | bt_put(packet->context); | |
128 | packet->context = bt_get(context); | |
129 | ||
130 | end: | |
131 | BT_PUT(stream_class); | |
132 | BT_PUT(context_field_type); | |
133 | BT_PUT(expected_context_field_type); | |
134 | ||
135 | return ret; | |
136 | } | |
137 | ||
138 | BT_HIDDEN | |
139 | void bt_ctf_packet_freeze(struct bt_ctf_packet *packet) | |
140 | { | |
141 | if (!packet) { | |
142 | return; | |
143 | } | |
144 | ||
145 | bt_ctf_field_freeze(packet->header); | |
146 | bt_ctf_field_freeze(packet->context); | |
147 | packet->frozen = 1; | |
148 | } | |
149 | ||
150 | static | |
151 | void bt_ctf_packet_destroy(struct bt_object *obj) | |
152 | { | |
153 | struct bt_ctf_packet *packet; | |
154 | ||
155 | packet = container_of(obj, struct bt_ctf_packet, base); | |
156 | bt_put(packet->header); | |
157 | bt_put(packet->context); | |
158 | bt_put(packet->stream); | |
159 | g_free(packet); | |
160 | } | |
161 | ||
55732d44 | 162 | BT_HIDDEN |
1c822dfb JG |
163 | struct bt_ctf_packet *bt_ctf_packet_create( |
164 | struct bt_ctf_stream *stream) | |
165 | { | |
166 | struct bt_ctf_packet *packet = NULL; | |
167 | struct bt_ctf_stream_class *stream_class = NULL; | |
168 | struct bt_ctf_trace *trace = NULL; | |
169 | ||
170 | if (!stream || stream->pos.fd >= 0) { | |
171 | goto end; | |
172 | } | |
173 | ||
174 | stream_class = bt_ctf_stream_get_class(stream); | |
175 | assert(stream_class); | |
176 | trace = bt_ctf_stream_class_get_trace(stream_class); | |
177 | assert(trace); | |
178 | packet = g_new0(struct bt_ctf_packet, 1); | |
179 | if (!packet) { | |
180 | goto end; | |
181 | } | |
182 | ||
183 | bt_object_init(packet, bt_ctf_packet_destroy); | |
184 | packet->stream = bt_get(stream); | |
185 | packet->header = bt_ctf_field_create(trace->packet_header_type); | |
186 | if (!packet->header) { | |
187 | BT_PUT(packet); | |
188 | goto end; | |
189 | } | |
190 | ||
191 | packet->context = bt_ctf_field_create( | |
192 | stream->stream_class->packet_context_type); | |
193 | if (!packet->context) { | |
194 | BT_PUT(packet); | |
195 | goto end; | |
196 | } | |
197 | ||
198 | end: | |
199 | BT_PUT(trace); | |
200 | BT_PUT(stream_class); | |
201 | ||
202 | return packet; | |
203 | } |