2 * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
3 * Copyright 2013, 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com>
5 * Permission is hereby granted, free of charge, to any person obtaining a copy
6 * of this software and associated documentation files (the "Software"), to deal
7 * in the Software without restriction, including without limitation the rights
8 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 * copies of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 #define BT_LOG_TAG "STREAM"
25 #include <babeltrace2/lib-logging-internal.h>
27 #include <babeltrace2/assert-pre-internal.h>
28 #include <babeltrace2/trace-ir/stream-const.h>
29 #include <babeltrace2/trace-ir/stream.h>
30 #include <babeltrace2/trace-ir/stream-internal.h>
31 #include <babeltrace2/trace-ir/stream-class.h>
32 #include <babeltrace2/trace-ir/stream-class-internal.h>
33 #include <babeltrace2/trace-ir/trace.h>
34 #include <babeltrace2/trace-ir/trace-internal.h>
35 #include <babeltrace2/trace-ir/packet-internal.h>
36 #include <babeltrace2/compiler-internal.h>
37 #include <babeltrace2/align-internal.h>
38 #include <babeltrace2/assert-internal.h>
39 #include <babeltrace2/property-internal.h>
43 #define BT_ASSERT_PRE_STREAM_HOT(_stream) \
44 BT_ASSERT_PRE_HOT((_stream), "Stream", ": %!+s", (_stream))
47 void destroy_stream(struct bt_object
*obj
)
49 struct bt_stream
*stream
= (void *) obj
;
51 BT_LIB_LOGD("Destroying stream object: %!+s", stream
);
53 if (stream
->name
.str
) {
54 g_string_free(stream
->name
.str
, TRUE
);
55 stream
->name
.str
= NULL
;
56 stream
->name
.value
= NULL
;
59 BT_LOGD_STR("Putting stream's class.");
60 bt_object_put_ref(stream
->class);
61 bt_object_pool_finalize(&stream
->packet_pool
);
66 void bt_stream_free_packet(struct bt_packet
*packet
, struct bt_stream
*stream
)
68 bt_packet_destroy(packet
);
73 bool stream_id_is_unique(struct bt_trace
*trace
,
74 struct bt_stream_class
*stream_class
, uint64_t id
)
77 bool is_unique
= true;
79 for (i
= 0; i
< trace
->streams
->len
; i
++) {
80 struct bt_stream
*stream
= trace
->streams
->pdata
[i
];
82 if (stream
->class != stream_class
) {
86 if (stream
->id
== id
) {
97 struct bt_stream
*create_stream_with_id(struct bt_stream_class
*stream_class
,
98 struct bt_trace
*trace
, uint64_t id
)
101 struct bt_stream
*stream
;
103 BT_ASSERT(stream_class
);
105 BT_ASSERT_PRE(trace
->class ==
106 bt_stream_class_borrow_trace_class_inline(stream_class
),
107 "Trace's class is different from stream class's parent trace class: "
108 "%![sc-]+S, %![trace-]+t", stream_class
, trace
);
109 BT_ASSERT_PRE(stream_id_is_unique(trace
, stream_class
, id
),
110 "Duplicate stream ID: %![trace-]+t, id=%" PRIu64
, trace
, id
);
111 BT_LIB_LOGD("Creating stream object: %![trace-]+t, id=%" PRIu64
,
113 stream
= g_new0(struct bt_stream
, 1);
115 BT_LOGE_STR("Failed to allocate one stream.");
119 bt_object_init_shared_with_parent(&stream
->base
, destroy_stream
);
120 stream
->name
.str
= g_string_new(NULL
);
121 if (!stream
->name
.str
) {
122 BT_LOGE_STR("Failed to allocate a GString.");
127 ret
= bt_object_pool_initialize(&stream
->packet_pool
,
128 (bt_object_pool_new_object_func
) bt_packet_new
,
129 (bt_object_pool_destroy_object_func
) bt_stream_free_packet
,
132 BT_LOGE("Failed to initialize packet pool: ret=%d", ret
);
136 stream
->class = stream_class
;
137 bt_object_get_no_null_check(stream_class
);
139 /* bt_trace_add_stream() sets the parent trace, and freezes the trace */
140 bt_trace_add_stream(trace
, stream
);
142 bt_stream_class_freeze(stream_class
);
143 BT_LIB_LOGD("Created stream object: %!+s", stream
);
147 BT_OBJECT_PUT_REF_AND_RESET(stream
);
153 struct bt_stream
*bt_stream_create(struct bt_stream_class
*stream_class
,
154 struct bt_trace
*trace
)
158 BT_ASSERT_PRE_NON_NULL(stream_class
, "Stream class");
159 BT_ASSERT_PRE_NON_NULL(trace
, "Trace");
160 BT_ASSERT_PRE(stream_class
->assigns_automatic_stream_id
,
161 "Stream class does not automatically assigns stream IDs: "
162 "%![sc-]+S", stream_class
);
163 id
= bt_trace_get_automatic_stream_id(trace
, stream_class
);
164 return create_stream_with_id(stream_class
, trace
, id
);
167 struct bt_stream
*bt_stream_create_with_id(struct bt_stream_class
*stream_class
,
168 struct bt_trace
*trace
, uint64_t id
)
170 BT_ASSERT_PRE_NON_NULL(stream_class
, "Stream class");
171 BT_ASSERT_PRE_NON_NULL(trace
, "Trace");
172 BT_ASSERT_PRE(!stream_class
->assigns_automatic_stream_id
,
173 "Stream class automatically assigns stream IDs: "
174 "%![sc-]+S", stream_class
);
175 return create_stream_with_id(stream_class
, trace
, id
);
178 struct bt_stream_class
*bt_stream_borrow_class(struct bt_stream
*stream
)
180 BT_ASSERT_PRE_NON_NULL(stream
, "Stream");
181 return stream
->class;
184 const struct bt_stream_class
*bt_stream_borrow_class_const(
185 const struct bt_stream
*stream
)
187 return bt_stream_borrow_class((void *) stream
);
190 struct bt_trace
*bt_stream_borrow_trace(struct bt_stream
*stream
)
192 BT_ASSERT_PRE_NON_NULL(stream
, "Stream");
193 return bt_stream_borrow_trace_inline(stream
);
196 const struct bt_trace
*bt_stream_borrow_trace_const(
197 const struct bt_stream
*stream
)
199 return bt_stream_borrow_trace((void *) stream
);
202 const char *bt_stream_get_name(const struct bt_stream
*stream
)
204 BT_ASSERT_PRE_NON_NULL(stream
, "Stream");
205 return stream
->name
.value
;
208 enum bt_stream_status
bt_stream_set_name(struct bt_stream
*stream
,
211 BT_ASSERT_PRE_NON_NULL(stream
, "Stream");
212 BT_ASSERT_PRE_NON_NULL(name
, "Name");
213 BT_ASSERT_PRE_STREAM_HOT(stream
);
214 g_string_assign(stream
->name
.str
, name
);
215 stream
->name
.value
= stream
->name
.str
->str
;
216 BT_LIB_LOGV("Set stream's name: %!+s", stream
);
217 return BT_STREAM_STATUS_OK
;
220 uint64_t bt_stream_get_id(const struct bt_stream
*stream
)
222 BT_ASSERT_PRE_NON_NULL(stream
, "Stream class");
227 void _bt_stream_freeze(const struct bt_stream
*stream
)
230 BT_LIB_LOGD("Freezing stream: %!+s", stream
);
231 ((struct bt_stream
*) stream
)->frozen
= true;
234 void bt_stream_get_ref(const struct bt_stream
*stream
)
236 bt_object_get_ref(stream
);
239 void bt_stream_put_ref(const struct bt_stream
*stream
)
241 bt_object_put_ref(stream
);