| 1 | /* |
| 2 | * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com> |
| 3 | * Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
| 4 | * |
| 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: |
| 11 | * |
| 12 | * The above copyright notice and this permission notice shall be included in |
| 13 | * all copies or substantial portions of the Software. |
| 14 | * |
| 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 |
| 21 | * SOFTWARE. |
| 22 | */ |
| 23 | |
| 24 | #define BT_LOG_TAG "LIB/MSG-PACKET" |
| 25 | #include "lib/logging.h" |
| 26 | |
| 27 | #include "lib/assert-pre.h" |
| 28 | #include "lib/assert-post.h" |
| 29 | #include "compat/compiler.h" |
| 30 | #include <babeltrace2/trace-ir/packet.h> |
| 31 | #include "lib/trace-ir/packet.h" |
| 32 | #include <babeltrace2/trace-ir/stream-class.h> |
| 33 | #include <babeltrace2/trace-ir/stream.h> |
| 34 | #include "lib/trace-ir/stream.h" |
| 35 | #include "lib/trace-ir/stream-class.h" |
| 36 | #include "lib/graph/graph.h" |
| 37 | #include <babeltrace2/graph/message-packet-beginning-const.h> |
| 38 | #include <babeltrace2/graph/message-packet-end-const.h> |
| 39 | #include <babeltrace2/graph/message-packet-beginning.h> |
| 40 | #include <babeltrace2/graph/message-packet-end.h> |
| 41 | #include "common/assert.h" |
| 42 | #include "lib/object.h" |
| 43 | #include <inttypes.h> |
| 44 | |
| 45 | #include "packet.h" |
| 46 | |
| 47 | static inline |
| 48 | struct bt_message *new_packet_message(struct bt_graph *graph, |
| 49 | enum bt_message_type type, bt_object_release_func recycle_func) |
| 50 | { |
| 51 | struct bt_message_packet *message; |
| 52 | |
| 53 | message = g_new0(struct bt_message_packet, 1); |
| 54 | if (!message) { |
| 55 | BT_LIB_LOGE_APPEND_CAUSE( |
| 56 | "Failed to allocate one packet message."); |
| 57 | goto error; |
| 58 | } |
| 59 | |
| 60 | bt_message_init(&message->parent, type, recycle_func, graph); |
| 61 | goto end; |
| 62 | |
| 63 | error: |
| 64 | BT_OBJECT_PUT_REF_AND_RESET(message); |
| 65 | |
| 66 | end: |
| 67 | return (void *) message; |
| 68 | } |
| 69 | |
| 70 | BT_HIDDEN |
| 71 | struct bt_message *bt_message_packet_beginning_new(struct bt_graph *graph) |
| 72 | { |
| 73 | return new_packet_message(graph, BT_MESSAGE_TYPE_PACKET_BEGINNING, |
| 74 | (bt_object_release_func) bt_message_packet_beginning_recycle); |
| 75 | } |
| 76 | |
| 77 | BT_HIDDEN |
| 78 | struct bt_message *bt_message_packet_end_new(struct bt_graph *graph) |
| 79 | { |
| 80 | return new_packet_message(graph, BT_MESSAGE_TYPE_PACKET_END, |
| 81 | (bt_object_release_func) bt_message_packet_end_recycle); |
| 82 | } |
| 83 | |
| 84 | static inline |
| 85 | struct bt_message *create_packet_message( |
| 86 | struct bt_self_component_port_input_message_iterator *msg_iter, |
| 87 | struct bt_packet *packet, struct bt_object_pool *pool, |
| 88 | bool with_cs, uint64_t raw_value) |
| 89 | { |
| 90 | struct bt_message_packet *message = NULL; |
| 91 | struct bt_stream *stream; |
| 92 | struct bt_stream_class *stream_class; |
| 93 | bool need_cs; |
| 94 | |
| 95 | BT_ASSERT(msg_iter); |
| 96 | BT_ASSERT_PRE_NON_NULL(packet, "Packet"); |
| 97 | stream = bt_packet_borrow_stream(packet); |
| 98 | BT_ASSERT(stream); |
| 99 | stream_class = bt_stream_borrow_class(stream); |
| 100 | BT_ASSERT(stream_class); |
| 101 | |
| 102 | /* |
| 103 | * It's not possible to create a packet from a stream of which |
| 104 | * the class indicates that packets are not supported. |
| 105 | */ |
| 106 | BT_ASSERT(stream_class->supports_packets); |
| 107 | |
| 108 | if (pool == &msg_iter->graph->packet_begin_msg_pool) { |
| 109 | need_cs = stream_class->packets_have_beginning_default_clock_snapshot; |
| 110 | } else { |
| 111 | need_cs = stream_class->packets_have_end_default_clock_snapshot; |
| 112 | } |
| 113 | |
| 114 | /* |
| 115 | * `packet_has_default_clock_snapshot` implies that the stream |
| 116 | * class has a default clock class (precondition). |
| 117 | */ |
| 118 | BT_ASSERT_PRE(need_cs ? with_cs : true, |
| 119 | "Unexpected stream class configuration when creating " |
| 120 | "a packet beginning or end message: " |
| 121 | "a default clock snapshot is needed, but none was provided: " |
| 122 | "%![stream-]+s, %![sc-]+S, with-cs=%d, " |
| 123 | "cs-val=%" PRIu64, |
| 124 | stream, stream_class, with_cs, raw_value); |
| 125 | BT_ASSERT_PRE(!need_cs ? !with_cs : true, |
| 126 | "Unexpected stream class configuration when creating " |
| 127 | "a packet beginning or end message: " |
| 128 | "no default clock snapshot is needed, but one was provided: " |
| 129 | "%![stream-]+s, %![sc-]+S, with-cs=%d, " |
| 130 | "cs-val=%" PRIu64, |
| 131 | stream, stream_class, with_cs, raw_value); |
| 132 | BT_LIB_LOGD("Creating packet message object: " |
| 133 | "%![packet-]+a, %![stream-]+s, %![sc-]+S", |
| 134 | packet, stream, stream_class); |
| 135 | message = (void *) bt_message_create_from_pool(pool, msg_iter->graph); |
| 136 | if (!message) { |
| 137 | /* bt_message_create_from_pool() logs errors */ |
| 138 | goto end; |
| 139 | } |
| 140 | |
| 141 | if (with_cs) { |
| 142 | BT_ASSERT(stream_class->default_clock_class); |
| 143 | message->default_cs = bt_clock_snapshot_create( |
| 144 | stream_class->default_clock_class); |
| 145 | if (!message->default_cs) { |
| 146 | bt_object_put_no_null_check(message); |
| 147 | message = NULL; |
| 148 | goto end; |
| 149 | } |
| 150 | |
| 151 | bt_clock_snapshot_set_raw_value(message->default_cs, raw_value); |
| 152 | } |
| 153 | |
| 154 | BT_ASSERT(!message->packet); |
| 155 | message->packet = packet; |
| 156 | bt_object_get_no_null_check_no_parent_check( |
| 157 | &message->packet->base); |
| 158 | bt_packet_set_is_frozen(packet, true); |
| 159 | BT_LIB_LOGD("Created packet message object: " |
| 160 | "%![msg-]+n, %![packet-]+a, %![stream-]+s, %![sc-]+S", |
| 161 | message, packet, stream, stream_class); |
| 162 | goto end; |
| 163 | |
| 164 | end: |
| 165 | return (void *) message; |
| 166 | } |
| 167 | |
| 168 | struct bt_message *bt_message_packet_beginning_create( |
| 169 | struct bt_self_message_iterator *self_msg_iter, |
| 170 | const struct bt_packet *packet) |
| 171 | { |
| 172 | struct bt_self_component_port_input_message_iterator *msg_iter = |
| 173 | (void *) self_msg_iter; |
| 174 | |
| 175 | BT_ASSERT_PRE_NON_NULL(msg_iter, "Message iterator"); |
| 176 | return create_packet_message(msg_iter, (void *) packet, |
| 177 | &msg_iter->graph->packet_begin_msg_pool, false, 0); |
| 178 | } |
| 179 | |
| 180 | struct bt_message *bt_message_packet_beginning_create_with_default_clock_snapshot( |
| 181 | struct bt_self_message_iterator *self_msg_iter, |
| 182 | const struct bt_packet *packet, uint64_t raw_value) |
| 183 | { |
| 184 | struct bt_self_component_port_input_message_iterator *msg_iter = |
| 185 | (void *) self_msg_iter; |
| 186 | |
| 187 | BT_ASSERT_PRE_NON_NULL(msg_iter, "Message iterator"); |
| 188 | return create_packet_message(msg_iter, (void *) packet, |
| 189 | &msg_iter->graph->packet_begin_msg_pool, true, raw_value); |
| 190 | } |
| 191 | |
| 192 | struct bt_message *bt_message_packet_end_create( |
| 193 | struct bt_self_message_iterator *self_msg_iter, |
| 194 | const struct bt_packet *packet) |
| 195 | { |
| 196 | struct bt_self_component_port_input_message_iterator *msg_iter = |
| 197 | (void *) self_msg_iter; |
| 198 | |
| 199 | BT_ASSERT_PRE_NON_NULL(msg_iter, "Message iterator"); |
| 200 | return create_packet_message(msg_iter, (void *) packet, |
| 201 | &msg_iter->graph->packet_end_msg_pool, false, 0); |
| 202 | } |
| 203 | |
| 204 | struct bt_message *bt_message_packet_end_create_with_default_clock_snapshot( |
| 205 | struct bt_self_message_iterator *self_msg_iter, |
| 206 | const struct bt_packet *packet, uint64_t raw_value) |
| 207 | { |
| 208 | struct bt_self_component_port_input_message_iterator *msg_iter = |
| 209 | (void *) self_msg_iter; |
| 210 | |
| 211 | BT_ASSERT_PRE_NON_NULL(msg_iter, "Message iterator"); |
| 212 | return create_packet_message(msg_iter, (void *) packet, |
| 213 | &msg_iter->graph->packet_end_msg_pool, true, raw_value); |
| 214 | } |
| 215 | |
| 216 | BT_HIDDEN |
| 217 | void bt_message_packet_destroy(struct bt_message *msg) |
| 218 | { |
| 219 | struct bt_message_packet *packet_msg = (void *) msg; |
| 220 | |
| 221 | BT_LIB_LOGD("Destroying packet message: %!+n", msg); |
| 222 | BT_LIB_LOGD("Putting packet: %!+a", packet_msg->packet); |
| 223 | BT_OBJECT_PUT_REF_AND_RESET(packet_msg->packet); |
| 224 | |
| 225 | if (packet_msg->default_cs) { |
| 226 | bt_clock_snapshot_recycle(packet_msg->default_cs); |
| 227 | packet_msg->default_cs = NULL; |
| 228 | } |
| 229 | |
| 230 | g_free(msg); |
| 231 | } |
| 232 | |
| 233 | static inline |
| 234 | void recycle_packet_message(struct bt_message *msg, struct bt_object_pool *pool) |
| 235 | { |
| 236 | struct bt_message_packet *packet_msg = (void *) msg; |
| 237 | |
| 238 | BT_LIB_LOGD("Recycling packet message: %!+n", msg); |
| 239 | bt_message_reset(msg); |
| 240 | bt_object_put_no_null_check(&packet_msg->packet->base); |
| 241 | |
| 242 | if (packet_msg->default_cs) { |
| 243 | bt_clock_snapshot_recycle(packet_msg->default_cs); |
| 244 | packet_msg->default_cs = NULL; |
| 245 | } |
| 246 | |
| 247 | packet_msg->packet = NULL; |
| 248 | msg->graph = NULL; |
| 249 | bt_object_pool_recycle_object(pool, msg); |
| 250 | } |
| 251 | |
| 252 | BT_HIDDEN |
| 253 | void bt_message_packet_beginning_recycle(struct bt_message *msg) |
| 254 | { |
| 255 | BT_ASSERT(msg); |
| 256 | |
| 257 | if (G_UNLIKELY(!msg->graph)) { |
| 258 | bt_message_packet_destroy(msg); |
| 259 | return; |
| 260 | } |
| 261 | |
| 262 | recycle_packet_message(msg, &msg->graph->packet_begin_msg_pool); |
| 263 | } |
| 264 | |
| 265 | BT_HIDDEN |
| 266 | void bt_message_packet_end_recycle(struct bt_message *msg) |
| 267 | { |
| 268 | BT_ASSERT(msg); |
| 269 | |
| 270 | if (G_UNLIKELY(!msg->graph)) { |
| 271 | bt_message_packet_destroy(msg); |
| 272 | return; |
| 273 | } |
| 274 | |
| 275 | recycle_packet_message(msg, &msg->graph->packet_end_msg_pool); |
| 276 | } |
| 277 | |
| 278 | struct bt_packet *bt_message_packet_beginning_borrow_packet( |
| 279 | struct bt_message *message) |
| 280 | { |
| 281 | struct bt_message_packet *packet_msg = (void *) message; |
| 282 | |
| 283 | BT_ASSERT_PRE_NON_NULL(message, "Message"); |
| 284 | BT_ASSERT_PRE_MSG_IS_TYPE(message, |
| 285 | BT_MESSAGE_TYPE_PACKET_BEGINNING); |
| 286 | return packet_msg->packet; |
| 287 | } |
| 288 | |
| 289 | const struct bt_packet *bt_message_packet_beginning_borrow_packet_const( |
| 290 | const struct bt_message *message) |
| 291 | { |
| 292 | return bt_message_packet_beginning_borrow_packet( |
| 293 | (void *) message); |
| 294 | } |
| 295 | |
| 296 | struct bt_packet *bt_message_packet_end_borrow_packet( |
| 297 | struct bt_message *message) |
| 298 | { |
| 299 | struct bt_message_packet *packet_msg = (void *) message; |
| 300 | |
| 301 | BT_ASSERT_PRE_NON_NULL(message, "Message"); |
| 302 | BT_ASSERT_PRE_MSG_IS_TYPE(message, |
| 303 | BT_MESSAGE_TYPE_PACKET_END); |
| 304 | return packet_msg->packet; |
| 305 | } |
| 306 | |
| 307 | const struct bt_packet *bt_message_packet_end_borrow_packet_const( |
| 308 | const struct bt_message *message) |
| 309 | { |
| 310 | return bt_message_packet_end_borrow_packet( |
| 311 | (void *) message); |
| 312 | } |
| 313 | |
| 314 | static inline |
| 315 | const struct bt_clock_snapshot * |
| 316 | borrow_packet_message_default_clock_snapshot_const( |
| 317 | const struct bt_message *message) |
| 318 | { |
| 319 | struct bt_message_packet *packet_msg = (void *) message; |
| 320 | |
| 321 | BT_ASSERT(message); |
| 322 | BT_ASSERT_PRE(packet_msg->packet->stream->class->default_clock_class, |
| 323 | "Message's stream's class has no default clock class: " |
| 324 | "%![msg-]+n, %![sc-]+S", |
| 325 | message, packet_msg->packet->stream->class); |
| 326 | return packet_msg->default_cs; |
| 327 | } |
| 328 | |
| 329 | const struct bt_clock_snapshot * |
| 330 | bt_message_packet_beginning_borrow_default_clock_snapshot_const( |
| 331 | const struct bt_message *msg) |
| 332 | { |
| 333 | BT_ASSERT_PRE_NON_NULL(msg, "Message"); |
| 334 | BT_ASSERT_PRE_MSG_IS_TYPE(msg, BT_MESSAGE_TYPE_PACKET_BEGINNING); |
| 335 | return borrow_packet_message_default_clock_snapshot_const(msg); |
| 336 | } |
| 337 | |
| 338 | const struct bt_clock_snapshot * |
| 339 | bt_message_packet_end_borrow_default_clock_snapshot_const( |
| 340 | const struct bt_message *msg) |
| 341 | { |
| 342 | BT_ASSERT_PRE_NON_NULL(msg, "Message"); |
| 343 | BT_ASSERT_PRE_MSG_IS_TYPE(msg, BT_MESSAGE_TYPE_PACKET_END); |
| 344 | return borrow_packet_message_default_clock_snapshot_const(msg); |
| 345 | } |
| 346 | |
| 347 | static inline |
| 348 | const struct bt_clock_class * |
| 349 | borrow_packet_message_stream_class_default_clock_class( |
| 350 | const struct bt_message *msg) |
| 351 | { |
| 352 | struct bt_message_packet *packet_msg = (void *) msg; |
| 353 | |
| 354 | BT_ASSERT(msg); |
| 355 | return packet_msg->packet->stream->class->default_clock_class; |
| 356 | } |
| 357 | |
| 358 | const struct bt_clock_class * |
| 359 | bt_message_packet_beginning_borrow_stream_class_default_clock_class_const( |
| 360 | const struct bt_message *msg) |
| 361 | { |
| 362 | BT_ASSERT_PRE_NON_NULL(msg, "Message"); |
| 363 | BT_ASSERT_PRE_MSG_IS_TYPE(msg, BT_MESSAGE_TYPE_PACKET_BEGINNING); |
| 364 | return borrow_packet_message_stream_class_default_clock_class(msg); |
| 365 | } |
| 366 | |
| 367 | const struct bt_clock_class * |
| 368 | bt_message_packet_end_borrow_stream_class_default_clock_class_const( |
| 369 | const struct bt_message *msg) |
| 370 | { |
| 371 | BT_ASSERT_PRE_NON_NULL(msg, "Message"); |
| 372 | BT_ASSERT_PRE_MSG_IS_TYPE(msg, BT_MESSAGE_TYPE_PACKET_END); |
| 373 | return borrow_packet_message_stream_class_default_clock_class(msg); |
| 374 | } |