| 1 | /* |
| 2 | * Babeltrace Plug-in Stream-related Notifications |
| 3 | * |
| 4 | * Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
| 5 | * |
| 6 | * Author: Jérémie Galarneau <jeremie.galarneau@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 | #define BT_LOG_TAG "NOTIF-STREAM" |
| 28 | #include <babeltrace/lib-logging-internal.h> |
| 29 | |
| 30 | #include <babeltrace/compiler-internal.h> |
| 31 | #include <babeltrace/ctf-ir/stream-internal.h> |
| 32 | #include <babeltrace/ctf-ir/stream-class.h> |
| 33 | #include <babeltrace/graph/notification-stream-internal.h> |
| 34 | #include <inttypes.h> |
| 35 | |
| 36 | static |
| 37 | void bt_notification_stream_end_destroy(struct bt_object *obj) |
| 38 | { |
| 39 | struct bt_notification_stream_end *notification = |
| 40 | (struct bt_notification_stream_end *) obj; |
| 41 | |
| 42 | BT_LOGD("Destroying stream end notification: addr=%p", |
| 43 | notification); |
| 44 | BT_LOGD_STR("Putting stream."); |
| 45 | BT_PUT(notification->stream); |
| 46 | g_free(notification); |
| 47 | } |
| 48 | |
| 49 | struct bt_notification *bt_notification_stream_end_create( |
| 50 | struct bt_ctf_stream *stream) |
| 51 | { |
| 52 | struct bt_notification_stream_end *notification; |
| 53 | struct bt_ctf_stream_class *stream_class; |
| 54 | |
| 55 | if (!stream) { |
| 56 | BT_LOGW_STR("Invalid parameter: stream is NULL."); |
| 57 | goto error; |
| 58 | } |
| 59 | |
| 60 | stream_class = bt_ctf_stream_borrow_stream_class(stream); |
| 61 | assert(stream_class); |
| 62 | |
| 63 | if (stream->pos.fd >= 0) { |
| 64 | BT_LOGW("Invalid parameter: stream is a CTF writer stream: " |
| 65 | "stream-addr=%p, stream-name=\"%s\", " |
| 66 | "stream-class-addr=%p, stream-class-name\"%s\", " |
| 67 | "stream-class-id=%" PRId64, |
| 68 | stream, bt_ctf_stream_get_name(stream), stream_class, |
| 69 | bt_ctf_stream_class_get_name(stream_class), |
| 70 | bt_ctf_stream_class_get_id(stream_class)); |
| 71 | goto error; |
| 72 | } |
| 73 | |
| 74 | BT_LOGD("Creating stream end notification object: " |
| 75 | "stream-addr=%p, stream-name=\"%s\", " |
| 76 | "stream-class-addr=%p, stream-class-name=\"%s\", " |
| 77 | "stream-class-id=%" PRId64, |
| 78 | stream, bt_ctf_stream_get_name(stream), |
| 79 | stream_class, |
| 80 | bt_ctf_stream_class_get_name(stream_class), |
| 81 | bt_ctf_stream_class_get_id(stream_class)); |
| 82 | notification = g_new0(struct bt_notification_stream_end, 1); |
| 83 | if (!notification) { |
| 84 | BT_LOGE_STR("Failed to allocate one stream end notification."); |
| 85 | goto error; |
| 86 | } |
| 87 | |
| 88 | bt_notification_init(¬ification->parent, |
| 89 | BT_NOTIFICATION_TYPE_STREAM_END, |
| 90 | bt_notification_stream_end_destroy); |
| 91 | notification->stream = bt_get(stream); |
| 92 | BT_LOGD("Created stream end notification object: " |
| 93 | "stream-addr=%p, stream-name=\"%s\", " |
| 94 | "stream-class-addr=%p, stream-class-name=\"%s\", " |
| 95 | "stream-class-id=%" PRId64 ", addr=%p", |
| 96 | stream, bt_ctf_stream_get_name(stream), |
| 97 | stream_class, |
| 98 | bt_ctf_stream_class_get_name(stream_class), |
| 99 | bt_ctf_stream_class_get_id(stream_class), notification); |
| 100 | return ¬ification->parent; |
| 101 | error: |
| 102 | return NULL; |
| 103 | } |
| 104 | |
| 105 | struct bt_ctf_stream *bt_notification_stream_end_get_stream( |
| 106 | struct bt_notification *notification) |
| 107 | { |
| 108 | struct bt_notification_stream_end *stream_end; |
| 109 | struct bt_ctf_stream *stream = NULL; |
| 110 | |
| 111 | if (!notification) { |
| 112 | BT_LOGW_STR("Invalid parameter: notification is NULL."); |
| 113 | goto end; |
| 114 | } |
| 115 | |
| 116 | if (notification->type != BT_NOTIFICATION_TYPE_STREAM_END) { |
| 117 | BT_LOGW("Invalid parameter: notification is not a stream end notification: " |
| 118 | "addr%p, notif-type=%s", |
| 119 | notification, bt_notification_type_string( |
| 120 | bt_notification_get_type(notification))); |
| 121 | goto end; |
| 122 | } |
| 123 | |
| 124 | stream_end = container_of(notification, |
| 125 | struct bt_notification_stream_end, parent); |
| 126 | stream = bt_get(stream_end->stream); |
| 127 | |
| 128 | end: |
| 129 | return stream; |
| 130 | } |
| 131 | |
| 132 | static |
| 133 | void bt_notification_stream_begin_destroy(struct bt_object *obj) |
| 134 | { |
| 135 | struct bt_notification_stream_begin *notification = |
| 136 | (struct bt_notification_stream_begin *) obj; |
| 137 | |
| 138 | BT_LOGD("Destroying stream beginning notification: addr=%p", |
| 139 | notification); |
| 140 | BT_LOGD_STR("Putting stream."); |
| 141 | BT_PUT(notification->stream); |
| 142 | g_free(notification); |
| 143 | } |
| 144 | |
| 145 | struct bt_notification *bt_notification_stream_begin_create( |
| 146 | struct bt_ctf_stream *stream) |
| 147 | { |
| 148 | struct bt_notification_stream_begin *notification; |
| 149 | struct bt_ctf_stream_class *stream_class; |
| 150 | |
| 151 | if (!stream) { |
| 152 | BT_LOGW_STR("Invalid parameter: stream is NULL."); |
| 153 | goto error; |
| 154 | } |
| 155 | |
| 156 | stream_class = bt_ctf_stream_borrow_stream_class(stream); |
| 157 | assert(stream_class); |
| 158 | |
| 159 | if (stream->pos.fd >= 0) { |
| 160 | BT_LOGW("Invalid parameter: stream is a CTF writer stream: " |
| 161 | "stream-addr=%p, stream-name=\"%s\", " |
| 162 | "stream-class-addr=%p, stream-class-name\"%s\", " |
| 163 | "stream-class-id=%" PRId64, |
| 164 | stream, bt_ctf_stream_get_name(stream), stream_class, |
| 165 | bt_ctf_stream_class_get_name(stream_class), |
| 166 | bt_ctf_stream_class_get_id(stream_class)); |
| 167 | goto error; |
| 168 | } |
| 169 | |
| 170 | BT_LOGD("Creating stream beginning notification object: " |
| 171 | "stream-addr=%p, stream-name=\"%s\", " |
| 172 | "stream-class-addr=%p, stream-class-name=\"%s\", " |
| 173 | "stream-class-id=%" PRId64, |
| 174 | stream, bt_ctf_stream_get_name(stream), |
| 175 | stream_class, |
| 176 | bt_ctf_stream_class_get_name(stream_class), |
| 177 | bt_ctf_stream_class_get_id(stream_class)); |
| 178 | notification = g_new0(struct bt_notification_stream_begin, 1); |
| 179 | if (!notification) { |
| 180 | BT_LOGE_STR("Failed to allocate one stream beginning notification."); |
| 181 | goto error; |
| 182 | } |
| 183 | |
| 184 | bt_notification_init(¬ification->parent, |
| 185 | BT_NOTIFICATION_TYPE_STREAM_BEGIN, |
| 186 | bt_notification_stream_begin_destroy); |
| 187 | notification->stream = bt_get(stream); |
| 188 | BT_LOGD("Created stream beginning notification object: " |
| 189 | "stream-addr=%p, stream-name=\"%s\", " |
| 190 | "stream-class-addr=%p, stream-class-name=\"%s\", " |
| 191 | "stream-class-id=%" PRId64 ", addr=%p", |
| 192 | stream, bt_ctf_stream_get_name(stream), |
| 193 | stream_class, |
| 194 | bt_ctf_stream_class_get_name(stream_class), |
| 195 | bt_ctf_stream_class_get_id(stream_class), notification); |
| 196 | return ¬ification->parent; |
| 197 | error: |
| 198 | return NULL; |
| 199 | } |
| 200 | |
| 201 | struct bt_ctf_stream *bt_notification_stream_begin_get_stream( |
| 202 | struct bt_notification *notification) |
| 203 | { |
| 204 | struct bt_notification_stream_begin *stream_begin; |
| 205 | struct bt_ctf_stream *stream = NULL; |
| 206 | |
| 207 | if (!notification) { |
| 208 | BT_LOGW_STR("Invalid parameter: notification is NULL."); |
| 209 | goto end; |
| 210 | } |
| 211 | |
| 212 | if (notification->type != BT_NOTIFICATION_TYPE_STREAM_BEGIN) { |
| 213 | BT_LOGW("Invalid parameter: notification is not a stream beginning notification: " |
| 214 | "addr%p, notif-type=%s", |
| 215 | notification, bt_notification_type_string( |
| 216 | bt_notification_get_type(notification))); |
| 217 | goto end; |
| 218 | } |
| 219 | |
| 220 | stream_begin = container_of(notification, |
| 221 | struct bt_notification_stream_begin, parent); |
| 222 | stream = bt_get(stream_begin->stream); |
| 223 | |
| 224 | end: |
| 225 | return stream; |
| 226 | } |