Commit | Line | Data |
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7cdc2bab MD |
1 | /* |
2 | * Copyright 2016 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
3 | * | |
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: | |
10 | * | |
11 | * The above copyright notice and this permission notice shall be included in | |
12 | * all copies or substantial portions of the Software. | |
13 | * | |
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 | |
20 | * SOFTWARE. | |
21 | */ | |
22 | ||
020bc26f PP |
23 | #define BT_LOG_TAG "PLUGIN-CTF-LTTNG-LIVE-SRC-VIEWER" |
24 | #include "logging.h" | |
25 | ||
7cdc2bab MD |
26 | #include <stdio.h> |
27 | #include <stdint.h> | |
28 | #include <stdlib.h> | |
29 | #include <stdbool.h> | |
30 | #include <unistd.h> | |
31 | #include <glib.h> | |
32 | #include <inttypes.h> | |
7cdc2bab | 33 | #include <sys/types.h> |
7cdc2bab | 34 | #include <fcntl.h> |
7cdc2bab | 35 | |
1cb3cdd7 MJ |
36 | #include <babeltrace/compat/socket-internal.h> |
37 | #include <babeltrace/endian-internal.h> | |
7cdc2bab | 38 | #include <babeltrace/compiler-internal.h> |
94b828f3 | 39 | #include <babeltrace/common-internal.h> |
9d408fca | 40 | #include <babeltrace/babeltrace.h> |
7cdc2bab MD |
41 | |
42 | #include "lttng-live-internal.h" | |
43 | #include "viewer-connection.h" | |
44 | #include "lttng-viewer-abi.h" | |
45 | #include "data-stream.h" | |
46 | #include "metadata.h" | |
47 | ||
4c66436f MD |
48 | static ssize_t lttng_live_recv(struct bt_live_viewer_connection *viewer_connection, |
49 | void *buf, size_t len) | |
7cdc2bab MD |
50 | { |
51 | ssize_t ret; | |
52 | size_t copied = 0, to_copy = len; | |
4c66436f MD |
53 | struct lttng_live_component *lttng_live = |
54 | viewer_connection->lttng_live; | |
1cb3cdd7 | 55 | BT_SOCKET sock = viewer_connection->control_sock; |
7cdc2bab MD |
56 | |
57 | do { | |
1cb3cdd7 | 58 | ret = bt_socket_recv(sock, buf + copied, to_copy, 0); |
7cdc2bab | 59 | if (ret > 0) { |
1d2f35fd | 60 | BT_ASSERT(ret <= to_copy); |
7cdc2bab MD |
61 | copied += ret; |
62 | to_copy -= ret; | |
63 | } | |
1cb3cdd7 | 64 | if (ret == BT_SOCKET_ERROR && bt_socket_interrupted()) { |
6f79a7cf | 65 | if (lttng_live_is_canceled(lttng_live)) { |
4c66436f MD |
66 | break; |
67 | } else { | |
68 | continue; | |
69 | } | |
70 | } | |
71 | } while (ret > 0 && to_copy > 0); | |
7cdc2bab MD |
72 | if (ret > 0) |
73 | ret = copied; | |
1cb3cdd7 | 74 | /* ret = 0 means orderly shutdown, ret == BT_SOCKET_ERROR is error. */ |
7cdc2bab MD |
75 | return ret; |
76 | } | |
77 | ||
4c66436f MD |
78 | static ssize_t lttng_live_send(struct bt_live_viewer_connection *viewer_connection, |
79 | const void *buf, size_t len) | |
7cdc2bab | 80 | { |
4c66436f MD |
81 | struct lttng_live_component *lttng_live = |
82 | viewer_connection->lttng_live; | |
1cb3cdd7 | 83 | BT_SOCKET sock = viewer_connection->control_sock; |
7cdc2bab MD |
84 | ssize_t ret; |
85 | ||
4c66436f | 86 | for (;;) { |
1cb3cdd7 MJ |
87 | ret = bt_socket_send_nosigpipe(sock, buf, len); |
88 | if (ret == BT_SOCKET_ERROR && bt_socket_interrupted()) { | |
6f79a7cf | 89 | if (lttng_live_is_canceled(lttng_live)) { |
4c66436f MD |
90 | break; |
91 | } else { | |
92 | continue; | |
93 | } | |
94 | } else { | |
95 | break; | |
96 | } | |
97 | } | |
7cdc2bab MD |
98 | return ret; |
99 | } | |
100 | ||
7cdc2bab MD |
101 | static int parse_url(struct bt_live_viewer_connection *viewer_connection) |
102 | { | |
94b828f3 MD |
103 | char error_buf[256] = { 0 }; |
104 | struct bt_common_lttng_live_url_parts lttng_live_url_parts = { 0 }; | |
105 | int ret = -1; | |
7cdc2bab | 106 | const char *path = viewer_connection->url->str; |
7cdc2bab MD |
107 | |
108 | if (!path) { | |
109 | goto end; | |
110 | } | |
7cdc2bab | 111 | |
94b828f3 MD |
112 | lttng_live_url_parts = bt_common_parse_lttng_live_url(path, |
113 | error_buf, sizeof(error_buf)); | |
114 | if (!lttng_live_url_parts.proto) { | |
115 | BT_LOGW("Invalid LTTng live URL format: %s", error_buf); | |
7cdc2bab MD |
116 | goto end; |
117 | } | |
7cdc2bab | 118 | |
94b828f3 MD |
119 | viewer_connection->relay_hostname = |
120 | lttng_live_url_parts.hostname; | |
121 | lttng_live_url_parts.hostname = NULL; | |
122 | ||
123 | if (lttng_live_url_parts.port >= 0) { | |
124 | viewer_connection->port = lttng_live_url_parts.port; | |
125 | } else { | |
7cdc2bab MD |
126 | viewer_connection->port = LTTNG_DEFAULT_NETWORK_VIEWER_PORT; |
127 | } | |
128 | ||
94b828f3 MD |
129 | viewer_connection->target_hostname = |
130 | lttng_live_url_parts.target_hostname; | |
131 | lttng_live_url_parts.target_hostname = NULL; | |
132 | ||
133 | if (lttng_live_url_parts.session_name) { | |
134 | viewer_connection->session_name = | |
135 | lttng_live_url_parts.session_name; | |
136 | lttng_live_url_parts.session_name = NULL; | |
7cdc2bab MD |
137 | } |
138 | ||
087bc060 | 139 | BT_LOGD("Connecting to hostname : %s, port : %d, " |
7cdc2bab | 140 | "target hostname : %s, session name : %s, " |
94b828f3 MD |
141 | "proto : %s", |
142 | viewer_connection->relay_hostname->str, | |
7cdc2bab | 143 | viewer_connection->port, |
94b828f3 MD |
144 | viewer_connection->target_hostname == NULL ? |
145 | "<none>" : viewer_connection->target_hostname->str, | |
146 | viewer_connection->session_name == NULL ? | |
147 | "<none>" : viewer_connection->session_name->str, | |
148 | lttng_live_url_parts.proto->str); | |
7cdc2bab MD |
149 | ret = 0; |
150 | ||
151 | end: | |
94b828f3 | 152 | bt_common_destroy_lttng_live_url_parts(<tng_live_url_parts); |
7cdc2bab MD |
153 | return ret; |
154 | } | |
155 | ||
156 | static int lttng_live_handshake(struct bt_live_viewer_connection *viewer_connection) | |
157 | { | |
158 | struct lttng_viewer_cmd cmd; | |
159 | struct lttng_viewer_connect connect; | |
160 | int ret; | |
161 | ssize_t ret_len; | |
162 | ||
163 | cmd.cmd = htobe32(LTTNG_VIEWER_CONNECT); | |
164 | cmd.data_size = htobe64((uint64_t) sizeof(connect)); | |
165 | cmd.cmd_version = htobe32(0); | |
166 | ||
167 | connect.viewer_session_id = -1ULL; /* will be set on recv */ | |
168 | connect.major = htobe32(LTTNG_LIVE_MAJOR); | |
169 | connect.minor = htobe32(LTTNG_LIVE_MINOR); | |
170 | connect.type = htobe32(LTTNG_VIEWER_CLIENT_COMMAND); | |
171 | ||
4c66436f | 172 | ret_len = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); |
1cb3cdd7 MJ |
173 | if (ret_len == BT_SOCKET_ERROR) { |
174 | BT_LOGE("Error sending cmd: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
175 | goto error; |
176 | } | |
1d2f35fd | 177 | BT_ASSERT(ret_len == sizeof(cmd)); |
7cdc2bab | 178 | |
4c66436f | 179 | ret_len = lttng_live_send(viewer_connection, &connect, sizeof(connect)); |
1cb3cdd7 MJ |
180 | if (ret_len == BT_SOCKET_ERROR) { |
181 | BT_LOGE("Error sending version: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
182 | goto error; |
183 | } | |
1d2f35fd | 184 | BT_ASSERT(ret_len == sizeof(connect)); |
7cdc2bab | 185 | |
4c66436f | 186 | ret_len = lttng_live_recv(viewer_connection, &connect, sizeof(connect)); |
7cdc2bab | 187 | if (ret_len == 0) { |
087bc060 | 188 | BT_LOGI("Remote side has closed connection"); |
7cdc2bab MD |
189 | goto error; |
190 | } | |
1cb3cdd7 MJ |
191 | if (ret_len == BT_SOCKET_ERROR) { |
192 | BT_LOGE("Error receiving version: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
193 | goto error; |
194 | } | |
1d2f35fd | 195 | BT_ASSERT(ret_len == sizeof(connect)); |
7cdc2bab | 196 | |
087bc060 | 197 | BT_LOGD("Received viewer session ID : %" PRIu64, |
83c78c35 | 198 | (uint64_t) be64toh(connect.viewer_session_id)); |
087bc060 | 199 | BT_LOGD("Relayd version : %u.%u", be32toh(connect.major), |
7cdc2bab MD |
200 | be32toh(connect.minor)); |
201 | ||
202 | if (LTTNG_LIVE_MAJOR != be32toh(connect.major)) { | |
087bc060 | 203 | BT_LOGE("Incompatible lttng-relayd protocol"); |
7cdc2bab MD |
204 | goto error; |
205 | } | |
206 | /* Use the smallest protocol version implemented. */ | |
207 | if (LTTNG_LIVE_MINOR > be32toh(connect.minor)) { | |
208 | viewer_connection->minor = be32toh(connect.minor); | |
209 | } else { | |
210 | viewer_connection->minor = LTTNG_LIVE_MINOR; | |
211 | } | |
212 | viewer_connection->major = LTTNG_LIVE_MAJOR; | |
213 | ret = 0; | |
214 | return ret; | |
215 | ||
216 | error: | |
087bc060 | 217 | BT_LOGE("Unable to establish connection"); |
7cdc2bab MD |
218 | return -1; |
219 | } | |
220 | ||
221 | static int lttng_live_connect_viewer(struct bt_live_viewer_connection *viewer_connection) | |
222 | { | |
223 | struct hostent *host; | |
224 | struct sockaddr_in server_addr; | |
225 | int ret; | |
226 | ||
227 | if (parse_url(viewer_connection)) { | |
228 | goto error; | |
229 | } | |
230 | ||
94b828f3 | 231 | host = gethostbyname(viewer_connection->relay_hostname->str); |
7cdc2bab | 232 | if (!host) { |
087bc060 | 233 | BT_LOGE("Cannot lookup hostname %s", |
94b828f3 | 234 | viewer_connection->relay_hostname->str); |
7cdc2bab MD |
235 | goto error; |
236 | } | |
237 | ||
1cb3cdd7 MJ |
238 | if ((viewer_connection->control_sock = socket(AF_INET, SOCK_STREAM, 0)) == BT_INVALID_SOCKET) { |
239 | BT_LOGE("Socket creation failed: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
240 | goto error; |
241 | } | |
242 | ||
243 | server_addr.sin_family = AF_INET; | |
244 | server_addr.sin_port = htons(viewer_connection->port); | |
245 | server_addr.sin_addr = *((struct in_addr *) host->h_addr); | |
246 | memset(&(server_addr.sin_zero), 0, 8); | |
247 | ||
248 | if (connect(viewer_connection->control_sock, (struct sockaddr *) &server_addr, | |
1cb3cdd7 MJ |
249 | sizeof(struct sockaddr)) == BT_SOCKET_ERROR) { |
250 | BT_LOGE("Connection failed: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
251 | goto error; |
252 | } | |
253 | if (lttng_live_handshake(viewer_connection)) { | |
254 | goto error; | |
255 | } | |
256 | ||
257 | ret = 0; | |
258 | ||
259 | return ret; | |
260 | ||
261 | error: | |
1cb3cdd7 MJ |
262 | if (viewer_connection->control_sock != BT_INVALID_SOCKET) { |
263 | if (bt_socket_close(viewer_connection->control_sock) == BT_SOCKET_ERROR) { | |
264 | BT_LOGE("Close: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
265 | } |
266 | } | |
1cb3cdd7 | 267 | viewer_connection->control_sock = BT_INVALID_SOCKET; |
7cdc2bab MD |
268 | return -1; |
269 | } | |
270 | ||
271 | static void lttng_live_disconnect_viewer(struct bt_live_viewer_connection *viewer_connection) | |
272 | { | |
1cb3cdd7 | 273 | if (viewer_connection->control_sock == BT_INVALID_SOCKET) { |
7cdc2bab MD |
274 | return; |
275 | } | |
1cb3cdd7 MJ |
276 | if (bt_socket_close(viewer_connection->control_sock) == BT_SOCKET_ERROR) { |
277 | BT_LOGE("Close: %s", bt_socket_errormsg()); | |
278 | viewer_connection->control_sock = BT_INVALID_SOCKET; | |
7cdc2bab MD |
279 | } |
280 | } | |
281 | ||
b727a996 | 282 | static void connection_release(bt_object *obj) |
7cdc2bab MD |
283 | { |
284 | struct bt_live_viewer_connection *conn = | |
285 | container_of(obj, struct bt_live_viewer_connection, obj); | |
286 | ||
287 | bt_live_viewer_connection_destroy(conn); | |
288 | } | |
289 | ||
290 | static | |
b727a996 | 291 | enum bt_value_status list_update_session(bt_value *results, |
7cdc2bab MD |
292 | const struct lttng_viewer_session *session, |
293 | bool *_found) | |
294 | { | |
295 | enum bt_value_status ret = BT_VALUE_STATUS_OK; | |
b727a996 PP |
296 | bt_value *map = NULL; |
297 | bt_value *hostname = NULL; | |
298 | bt_value *session_name = NULL; | |
299 | bt_value *btval = NULL; | |
7cdc2bab MD |
300 | int i, len; |
301 | bool found = false; | |
302 | ||
4671b141 | 303 | len = bt_value_array_get_size(results); |
7cdc2bab MD |
304 | if (len < 0) { |
305 | ret = BT_VALUE_STATUS_ERROR; | |
306 | goto end; | |
307 | } | |
308 | for (i = 0; i < len; i++) { | |
309 | const char *hostname_str = NULL; | |
310 | const char *session_name_str = NULL; | |
311 | ||
312 | map = bt_value_array_get(results, (size_t) i); | |
313 | if (!map) { | |
314 | ret = BT_VALUE_STATUS_ERROR; | |
315 | goto end; | |
316 | } | |
317 | hostname = bt_value_map_get(map, "target-hostname"); | |
318 | if (!hostname) { | |
319 | ret = BT_VALUE_STATUS_ERROR; | |
320 | goto end; | |
321 | } | |
322 | session_name = bt_value_map_get(map, "session-name"); | |
323 | if (!session_name) { | |
324 | ret = BT_VALUE_STATUS_ERROR; | |
325 | goto end; | |
326 | } | |
e9edc0fb PP |
327 | hostname_str = bt_value_string_get(hostname); |
328 | session_name_str = bt_value_string_get(session_name); | |
7cdc2bab MD |
329 | |
330 | if (!strcmp(session->hostname, hostname_str) | |
331 | && !strcmp(session->session_name, | |
332 | session_name_str)) { | |
333 | int64_t val; | |
334 | uint32_t streams = be32toh(session->streams); | |
335 | uint32_t clients = be32toh(session->clients); | |
336 | ||
337 | found = true; | |
338 | ||
339 | btval = bt_value_map_get(map, "stream-count"); | |
340 | if (!btval) { | |
341 | ret = BT_VALUE_STATUS_ERROR; | |
342 | goto end; | |
343 | } | |
e9edc0fb | 344 | val = bt_value_integer_get(btval); |
7cdc2bab MD |
345 | /* sum */ |
346 | val += streams; | |
310fc789 | 347 | ret = bt_private_integer_bool_set(btval, val); |
7cdc2bab MD |
348 | if (ret != BT_VALUE_STATUS_OK) { |
349 | goto end; | |
350 | } | |
b313ef44 | 351 | BT_VALUE_PUT_REF_AND_RESET(btval); |
7cdc2bab MD |
352 | |
353 | btval = bt_value_map_get(map, "client-count"); | |
354 | if (!btval) { | |
355 | ret = BT_VALUE_STATUS_ERROR; | |
356 | goto end; | |
357 | } | |
e9edc0fb | 358 | val = bt_value_integer_get(btval); |
7cdc2bab MD |
359 | /* max */ |
360 | val = max_t(int64_t, clients, val); | |
310fc789 | 361 | ret = bt_private_integer_bool_set(btval, val); |
7cdc2bab MD |
362 | if (ret != BT_VALUE_STATUS_OK) { |
363 | goto end; | |
364 | } | |
b313ef44 | 365 | BT_VALUE_PUT_REF_AND_RESET(btval); |
7cdc2bab MD |
366 | } |
367 | ||
b313ef44 PP |
368 | BT_VALUE_PUT_REF_AND_RESET(hostname); |
369 | BT_VALUE_PUT_REF_AND_RESET(session_name); | |
370 | BT_VALUE_PUT_REF_AND_RESET(map); | |
7cdc2bab MD |
371 | |
372 | if (found) { | |
373 | break; | |
374 | } | |
375 | } | |
376 | end: | |
b313ef44 PP |
377 | BT_VALUE_PUT_REF_AND_RESET(btval); |
378 | BT_VALUE_PUT_REF_AND_RESET(hostname); | |
379 | BT_VALUE_PUT_REF_AND_RESET(session_name); | |
380 | BT_VALUE_PUT_REF_AND_RESET(map); | |
7cdc2bab MD |
381 | *_found = found; |
382 | return ret; | |
383 | } | |
384 | ||
385 | static | |
b727a996 | 386 | enum bt_value_status list_append_session(bt_value *results, |
7cdc2bab MD |
387 | GString *base_url, |
388 | const struct lttng_viewer_session *session) | |
389 | { | |
390 | enum bt_value_status ret = BT_VALUE_STATUS_OK; | |
b727a996 | 391 | bt_value *map = NULL; |
7cdc2bab MD |
392 | GString *url = NULL; |
393 | bool found = false; | |
394 | ||
395 | /* | |
396 | * If the session already exists, add the stream count to it, | |
397 | * and do max of client counts. | |
398 | */ | |
399 | ret = list_update_session(results, session, &found); | |
400 | if (ret != BT_VALUE_STATUS_OK || found) { | |
401 | goto end; | |
402 | } | |
403 | ||
310fc789 | 404 | map = bt_private_value_map_create(); |
7cdc2bab MD |
405 | if (!map) { |
406 | ret = BT_VALUE_STATUS_ERROR; | |
407 | goto end; | |
408 | } | |
409 | ||
410 | if (base_url->len < 1) { | |
411 | ret = BT_VALUE_STATUS_ERROR; | |
412 | goto end; | |
413 | } | |
414 | /* | |
415 | * key = "url", | |
416 | * value = <string>, | |
417 | */ | |
418 | url = g_string_new(base_url->str); | |
419 | g_string_append(url, "/host/"); | |
420 | g_string_append(url, session->hostname); | |
421 | g_string_append_c(url, '/'); | |
422 | g_string_append(url, session->session_name); | |
423 | ||
310fc789 | 424 | ret = bt_private_value_map_insert_string_entry(map, "url", url->str); |
7cdc2bab MD |
425 | if (ret != BT_VALUE_STATUS_OK) { |
426 | goto end; | |
427 | } | |
428 | ||
429 | /* | |
430 | * key = "target-hostname", | |
431 | * value = <string>, | |
432 | */ | |
310fc789 | 433 | ret = bt_private_value_map_insert_string_entry(map, "target-hostname", |
7cdc2bab MD |
434 | session->hostname); |
435 | if (ret != BT_VALUE_STATUS_OK) { | |
436 | goto end; | |
437 | } | |
438 | ||
439 | /* | |
440 | * key = "session-name", | |
441 | * value = <string>, | |
442 | */ | |
310fc789 | 443 | ret = bt_private_value_map_insert_string_entry(map, "session-name", |
7cdc2bab MD |
444 | session->session_name); |
445 | if (ret != BT_VALUE_STATUS_OK) { | |
446 | goto end; | |
447 | } | |
448 | ||
449 | /* | |
450 | * key = "timer-us", | |
451 | * value = <integer>, | |
452 | */ | |
453 | { | |
454 | uint32_t live_timer = be32toh(session->live_timer); | |
455 | ||
310fc789 | 456 | ret = bt_private_value_map_insert_integer_entry(map, "timer-us", |
7cdc2bab MD |
457 | live_timer); |
458 | if (ret != BT_VALUE_STATUS_OK) { | |
459 | goto end; | |
460 | } | |
461 | } | |
462 | ||
463 | /* | |
464 | * key = "stream-count", | |
465 | * value = <integer>, | |
466 | */ | |
467 | { | |
468 | uint32_t streams = be32toh(session->streams); | |
469 | ||
310fc789 | 470 | ret = bt_private_value_map_insert_integer_entry(map, "stream-count", |
7cdc2bab MD |
471 | streams); |
472 | if (ret != BT_VALUE_STATUS_OK) { | |
473 | goto end; | |
474 | } | |
475 | } | |
476 | ||
477 | ||
478 | /* | |
479 | * key = "client-count", | |
480 | * value = <integer>, | |
481 | */ | |
482 | { | |
483 | uint32_t clients = be32toh(session->clients); | |
484 | ||
310fc789 | 485 | ret = bt_private_value_map_insert_integer_entry(map, "client-count", |
7cdc2bab MD |
486 | clients); |
487 | if (ret != BT_VALUE_STATUS_OK) { | |
488 | goto end; | |
489 | } | |
490 | } | |
491 | ||
310fc789 | 492 | ret = bt_private_value_array_append_element(results, map); |
7cdc2bab MD |
493 | end: |
494 | if (url) { | |
495 | g_string_free(url, TRUE); | |
496 | } | |
b313ef44 | 497 | BT_VALUE_PUT_REF_AND_RESET(map); |
7cdc2bab MD |
498 | return ret; |
499 | } | |
500 | ||
501 | /* | |
502 | * Data structure returned: | |
503 | * | |
504 | * { | |
505 | * <array> = { | |
506 | * [n] = { | |
507 | * <map> = { | |
508 | * { | |
509 | * key = "url", | |
510 | * value = <string>, | |
511 | * }, | |
512 | * { | |
513 | * key = "target-hostname", | |
514 | * value = <string>, | |
515 | * }, | |
516 | * { | |
517 | * key = "session-name", | |
518 | * value = <string>, | |
519 | * }, | |
520 | * { | |
521 | * key = "timer-us", | |
522 | * value = <integer>, | |
523 | * }, | |
524 | * { | |
525 | * key = "stream-count", | |
526 | * value = <integer>, | |
527 | * }, | |
528 | * { | |
529 | * key = "client-count", | |
530 | * value = <integer>, | |
531 | * }, | |
532 | * }, | |
533 | * } | |
534 | * } | |
535 | */ | |
536 | ||
537 | BT_HIDDEN | |
b727a996 | 538 | bt_value *bt_live_viewer_connection_list_sessions(struct bt_live_viewer_connection *viewer_connection) |
7cdc2bab | 539 | { |
b727a996 | 540 | bt_value *results = NULL; |
7cdc2bab MD |
541 | struct lttng_viewer_cmd cmd; |
542 | struct lttng_viewer_list_sessions list; | |
543 | uint32_t i, sessions_count; | |
544 | ssize_t ret_len; | |
545 | ||
546 | if (lttng_live_handshake(viewer_connection)) { | |
547 | goto error; | |
548 | } | |
549 | ||
310fc789 | 550 | results = bt_private_value_array_create(); |
7cdc2bab | 551 | if (!results) { |
087bc060 | 552 | BT_LOGE("Error creating array"); |
7cdc2bab MD |
553 | goto error; |
554 | } | |
555 | ||
556 | cmd.cmd = htobe32(LTTNG_VIEWER_LIST_SESSIONS); | |
557 | cmd.data_size = htobe64((uint64_t) 0); | |
558 | cmd.cmd_version = htobe32(0); | |
559 | ||
4c66436f | 560 | ret_len = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); |
1cb3cdd7 MJ |
561 | if (ret_len == BT_SOCKET_ERROR) { |
562 | BT_LOGE("Error sending cmd: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
563 | goto error; |
564 | } | |
1d2f35fd | 565 | BT_ASSERT(ret_len == sizeof(cmd)); |
7cdc2bab | 566 | |
4c66436f | 567 | ret_len = lttng_live_recv(viewer_connection, &list, sizeof(list)); |
7cdc2bab | 568 | if (ret_len == 0) { |
087bc060 | 569 | BT_LOGI("Remote side has closed connection"); |
7cdc2bab MD |
570 | goto error; |
571 | } | |
1cb3cdd7 MJ |
572 | if (ret_len == BT_SOCKET_ERROR) { |
573 | BT_LOGE("Error receiving session list: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
574 | goto error; |
575 | } | |
1d2f35fd | 576 | BT_ASSERT(ret_len == sizeof(list)); |
7cdc2bab MD |
577 | |
578 | sessions_count = be32toh(list.sessions_count); | |
579 | for (i = 0; i < sessions_count; i++) { | |
580 | struct lttng_viewer_session lsession; | |
581 | ||
4c66436f | 582 | ret_len = lttng_live_recv(viewer_connection, |
7cdc2bab MD |
583 | &lsession, sizeof(lsession)); |
584 | if (ret_len == 0) { | |
087bc060 | 585 | BT_LOGI("Remote side has closed connection"); |
7cdc2bab MD |
586 | goto error; |
587 | } | |
1cb3cdd7 MJ |
588 | if (ret_len == BT_SOCKET_ERROR) { |
589 | BT_LOGE("Error receiving session: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
590 | goto error; |
591 | } | |
1d2f35fd | 592 | BT_ASSERT(ret_len == sizeof(lsession)); |
7cdc2bab MD |
593 | lsession.hostname[LTTNG_VIEWER_HOST_NAME_MAX - 1] = '\0'; |
594 | lsession.session_name[LTTNG_VIEWER_NAME_MAX - 1] = '\0'; | |
595 | if (list_append_session(results, | |
596 | viewer_connection->url, &lsession) | |
597 | != BT_VALUE_STATUS_OK) { | |
598 | goto error; | |
599 | } | |
600 | } | |
601 | goto end; | |
602 | error: | |
b313ef44 | 603 | BT_VALUE_PUT_REF_AND_RESET(results); |
7cdc2bab MD |
604 | end: |
605 | return results; | |
606 | } | |
607 | ||
608 | static | |
609 | int lttng_live_query_session_ids(struct lttng_live_component *lttng_live) | |
610 | { | |
611 | struct lttng_viewer_cmd cmd; | |
612 | struct lttng_viewer_list_sessions list; | |
613 | struct lttng_viewer_session lsession; | |
614 | uint32_t i, sessions_count; | |
615 | ssize_t ret_len; | |
616 | uint64_t session_id; | |
617 | struct bt_live_viewer_connection *viewer_connection = | |
618 | lttng_live->viewer_connection; | |
619 | ||
620 | cmd.cmd = htobe32(LTTNG_VIEWER_LIST_SESSIONS); | |
621 | cmd.data_size = htobe64((uint64_t) 0); | |
622 | cmd.cmd_version = htobe32(0); | |
623 | ||
4c66436f | 624 | ret_len = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); |
1cb3cdd7 MJ |
625 | if (ret_len == BT_SOCKET_ERROR) { |
626 | BT_LOGE("Error sending cmd: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
627 | goto error; |
628 | } | |
1d2f35fd | 629 | BT_ASSERT(ret_len == sizeof(cmd)); |
7cdc2bab | 630 | |
4c66436f | 631 | ret_len = lttng_live_recv(viewer_connection, &list, sizeof(list)); |
7cdc2bab | 632 | if (ret_len == 0) { |
087bc060 | 633 | BT_LOGI("Remote side has closed connection"); |
7cdc2bab MD |
634 | goto error; |
635 | } | |
1cb3cdd7 MJ |
636 | if (ret_len == BT_SOCKET_ERROR) { |
637 | BT_LOGE("Error receiving session list: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
638 | goto error; |
639 | } | |
1d2f35fd | 640 | BT_ASSERT(ret_len == sizeof(list)); |
7cdc2bab MD |
641 | |
642 | sessions_count = be32toh(list.sessions_count); | |
643 | for (i = 0; i < sessions_count; i++) { | |
4c66436f | 644 | ret_len = lttng_live_recv(viewer_connection, |
7cdc2bab MD |
645 | &lsession, sizeof(lsession)); |
646 | if (ret_len == 0) { | |
087bc060 | 647 | BT_LOGI("Remote side has closed connection"); |
7cdc2bab MD |
648 | goto error; |
649 | } | |
1cb3cdd7 MJ |
650 | if (ret_len == BT_SOCKET_ERROR) { |
651 | BT_LOGE("Error receiving session: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
652 | goto error; |
653 | } | |
1d2f35fd | 654 | BT_ASSERT(ret_len == sizeof(lsession)); |
7cdc2bab MD |
655 | lsession.hostname[LTTNG_VIEWER_HOST_NAME_MAX - 1] = '\0'; |
656 | lsession.session_name[LTTNG_VIEWER_NAME_MAX - 1] = '\0'; | |
657 | session_id = be64toh(lsession.id); | |
658 | ||
06994c71 MD |
659 | BT_LOGD("Adding session %" PRIu64 " hostname: %s session_name: %s", |
660 | session_id, lsession.hostname, lsession.session_name); | |
661 | ||
7cdc2bab | 662 | if ((strncmp(lsession.session_name, |
94b828f3 | 663 | viewer_connection->session_name->str, |
1cb3cdd7 | 664 | LTTNG_VIEWER_NAME_MAX) == 0) && (strncmp(lsession.hostname, |
94b828f3 | 665 | viewer_connection->target_hostname->str, |
1cb3cdd7 | 666 | LTTNG_VIEWER_HOST_NAME_MAX) == 0)) { |
06994c71 MD |
667 | if (lttng_live_add_session(lttng_live, session_id, |
668 | lsession.hostname, | |
669 | lsession.session_name)) { | |
7cdc2bab MD |
670 | goto error; |
671 | } | |
672 | } | |
673 | } | |
674 | ||
675 | return 0; | |
676 | ||
677 | error: | |
087bc060 | 678 | BT_LOGE("Unable to query session ids"); |
7cdc2bab MD |
679 | return -1; |
680 | } | |
681 | ||
682 | BT_HIDDEN | |
683 | int lttng_live_create_viewer_session(struct lttng_live_component *lttng_live) | |
684 | { | |
685 | struct lttng_viewer_cmd cmd; | |
686 | struct lttng_viewer_create_session_response resp; | |
687 | ssize_t ret_len; | |
688 | struct bt_live_viewer_connection *viewer_connection = | |
689 | lttng_live->viewer_connection; | |
690 | ||
691 | cmd.cmd = htobe32(LTTNG_VIEWER_CREATE_SESSION); | |
692 | cmd.data_size = htobe64((uint64_t) 0); | |
693 | cmd.cmd_version = htobe32(0); | |
694 | ||
4c66436f | 695 | ret_len = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); |
1cb3cdd7 MJ |
696 | if (ret_len == BT_SOCKET_ERROR) { |
697 | BT_LOGE("Error sending cmd: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
698 | goto error; |
699 | } | |
1d2f35fd | 700 | BT_ASSERT(ret_len == sizeof(cmd)); |
7cdc2bab | 701 | |
4c66436f | 702 | ret_len = lttng_live_recv(viewer_connection, &resp, sizeof(resp)); |
7cdc2bab | 703 | if (ret_len == 0) { |
087bc060 | 704 | BT_LOGI("Remote side has closed connection"); |
7cdc2bab MD |
705 | goto error; |
706 | } | |
1cb3cdd7 MJ |
707 | if (ret_len == BT_SOCKET_ERROR) { |
708 | BT_LOGE("Error receiving create session reply: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
709 | goto error; |
710 | } | |
1d2f35fd | 711 | BT_ASSERT(ret_len == sizeof(resp)); |
7cdc2bab MD |
712 | |
713 | if (be32toh(resp.status) != LTTNG_VIEWER_CREATE_SESSION_OK) { | |
087bc060 | 714 | BT_LOGE("Error creating viewer session"); |
7cdc2bab MD |
715 | goto error; |
716 | } | |
717 | if (lttng_live_query_session_ids(lttng_live)) { | |
718 | goto error; | |
719 | } | |
720 | ||
721 | return 0; | |
722 | ||
723 | error: | |
724 | return -1; | |
725 | } | |
726 | ||
727 | static | |
728 | int receive_streams(struct lttng_live_session *session, | |
729 | uint32_t stream_count) | |
730 | { | |
731 | ssize_t ret_len; | |
732 | uint32_t i; | |
733 | struct lttng_live_component *lttng_live = session->lttng_live; | |
734 | struct bt_live_viewer_connection *viewer_connection = | |
735 | lttng_live->viewer_connection; | |
736 | ||
087bc060 | 737 | BT_LOGD("Getting %" PRIu32 " new streams:", stream_count); |
7cdc2bab MD |
738 | for (i = 0; i < stream_count; i++) { |
739 | struct lttng_viewer_stream stream; | |
740 | struct lttng_live_stream_iterator *live_stream; | |
741 | uint64_t stream_id; | |
742 | uint64_t ctf_trace_id; | |
743 | ||
4c66436f | 744 | ret_len = lttng_live_recv(viewer_connection, &stream, sizeof(stream)); |
7cdc2bab | 745 | if (ret_len == 0) { |
087bc060 | 746 | BT_LOGI("Remote side has closed connection"); |
7cdc2bab MD |
747 | goto error; |
748 | } | |
1cb3cdd7 | 749 | if (ret_len == BT_SOCKET_ERROR) { |
087bc060 | 750 | BT_LOGE("Error receiving stream"); |
7cdc2bab MD |
751 | goto error; |
752 | } | |
1d2f35fd | 753 | BT_ASSERT(ret_len == sizeof(stream)); |
7cdc2bab MD |
754 | stream.path_name[LTTNG_VIEWER_PATH_MAX - 1] = '\0'; |
755 | stream.channel_name[LTTNG_VIEWER_NAME_MAX - 1] = '\0'; | |
756 | stream_id = be64toh(stream.id); | |
757 | ctf_trace_id = be64toh(stream.ctf_trace_id); | |
758 | ||
759 | if (stream.metadata_flag) { | |
087bc060 | 760 | BT_LOGD(" metadata stream %" PRIu64 " : %s/%s", |
7cdc2bab MD |
761 | stream_id, stream.path_name, |
762 | stream.channel_name); | |
763 | if (lttng_live_metadata_create_stream(session, | |
06994c71 MD |
764 | ctf_trace_id, stream_id, |
765 | stream.path_name)) { | |
087bc060 | 766 | BT_LOGE("Error creating metadata stream"); |
7cdc2bab MD |
767 | |
768 | goto error; | |
769 | } | |
a940e807 | 770 | session->lazy_stream_msg_init = true; |
7cdc2bab | 771 | } else { |
087bc060 | 772 | BT_LOGD(" stream %" PRIu64 " : %s/%s", |
7cdc2bab MD |
773 | stream_id, stream.path_name, |
774 | stream.channel_name); | |
775 | live_stream = lttng_live_stream_iterator_create(session, | |
776 | ctf_trace_id, stream_id); | |
777 | if (!live_stream) { | |
087bc060 | 778 | BT_LOGE("Error creating streamn"); |
7cdc2bab MD |
779 | goto error; |
780 | } | |
781 | } | |
782 | } | |
783 | return 0; | |
784 | ||
785 | error: | |
786 | return -1; | |
787 | } | |
788 | ||
789 | BT_HIDDEN | |
790 | int lttng_live_attach_session(struct lttng_live_session *session) | |
791 | { | |
792 | struct lttng_viewer_cmd cmd; | |
793 | struct lttng_viewer_attach_session_request rq; | |
794 | struct lttng_viewer_attach_session_response rp; | |
795 | ssize_t ret_len; | |
796 | struct lttng_live_component *lttng_live = session->lttng_live; | |
797 | struct bt_live_viewer_connection *viewer_connection = | |
798 | lttng_live->viewer_connection; | |
799 | uint64_t session_id = session->id; | |
800 | uint32_t streams_count; | |
801 | ||
802 | if (session->attached) { | |
803 | return 0; | |
804 | } | |
805 | ||
806 | cmd.cmd = htobe32(LTTNG_VIEWER_ATTACH_SESSION); | |
807 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
808 | cmd.cmd_version = htobe32(0); | |
809 | ||
810 | memset(&rq, 0, sizeof(rq)); | |
811 | rq.session_id = htobe64(session_id); | |
812 | // TODO: add cmd line parameter to select seek beginning | |
813 | // rq.seek = htobe32(LTTNG_VIEWER_SEEK_BEGINNING); | |
814 | rq.seek = htobe32(LTTNG_VIEWER_SEEK_LAST); | |
815 | ||
4c66436f | 816 | ret_len = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); |
1cb3cdd7 MJ |
817 | if (ret_len == BT_SOCKET_ERROR) { |
818 | BT_LOGE("Error sending cmd: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
819 | goto error; |
820 | } | |
1d2f35fd | 821 | BT_ASSERT(ret_len == sizeof(cmd)); |
7cdc2bab | 822 | |
4c66436f | 823 | ret_len = lttng_live_send(viewer_connection, &rq, sizeof(rq)); |
1cb3cdd7 MJ |
824 | if (ret_len == BT_SOCKET_ERROR) { |
825 | BT_LOGE("Error sending attach request: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
826 | goto error; |
827 | } | |
1d2f35fd | 828 | BT_ASSERT(ret_len == sizeof(rq)); |
7cdc2bab | 829 | |
4c66436f | 830 | ret_len = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); |
7cdc2bab | 831 | if (ret_len == 0) { |
087bc060 | 832 | BT_LOGI("Remote side has closed connection"); |
7cdc2bab MD |
833 | goto error; |
834 | } | |
1cb3cdd7 MJ |
835 | if (ret_len == BT_SOCKET_ERROR) { |
836 | BT_LOGE("Error receiving attach response: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
837 | goto error; |
838 | } | |
1d2f35fd | 839 | BT_ASSERT(ret_len == sizeof(rp)); |
7cdc2bab MD |
840 | |
841 | streams_count = be32toh(rp.streams_count); | |
842 | switch(be32toh(rp.status)) { | |
843 | case LTTNG_VIEWER_ATTACH_OK: | |
844 | break; | |
845 | case LTTNG_VIEWER_ATTACH_UNK: | |
087bc060 | 846 | BT_LOGW("Session id %" PRIu64 " is unknown", session_id); |
7cdc2bab MD |
847 | goto error; |
848 | case LTTNG_VIEWER_ATTACH_ALREADY: | |
087bc060 | 849 | BT_LOGW("There is already a viewer attached to this session"); |
7cdc2bab MD |
850 | goto error; |
851 | case LTTNG_VIEWER_ATTACH_NOT_LIVE: | |
087bc060 | 852 | BT_LOGW("Not a live session"); |
7cdc2bab MD |
853 | goto error; |
854 | case LTTNG_VIEWER_ATTACH_SEEK_ERR: | |
087bc060 | 855 | BT_LOGE("Wrong seek parameter"); |
7cdc2bab MD |
856 | goto error; |
857 | default: | |
087bc060 | 858 | BT_LOGE("Unknown attach return code %u", be32toh(rp.status)); |
7cdc2bab MD |
859 | goto error; |
860 | } | |
861 | ||
862 | /* We receive the initial list of streams. */ | |
863 | if (receive_streams(session, streams_count)) { | |
864 | goto error; | |
865 | } | |
866 | ||
867 | session->attached = true; | |
868 | session->new_streams_needed = false; | |
869 | ||
870 | return 0; | |
871 | ||
872 | error: | |
873 | return -1; | |
874 | } | |
875 | ||
876 | BT_HIDDEN | |
877 | int lttng_live_detach_session(struct lttng_live_session *session) | |
878 | { | |
879 | struct lttng_viewer_cmd cmd; | |
880 | struct lttng_viewer_detach_session_request rq; | |
881 | struct lttng_viewer_detach_session_response rp; | |
882 | ssize_t ret_len; | |
883 | struct lttng_live_component *lttng_live = session->lttng_live; | |
884 | struct bt_live_viewer_connection *viewer_connection = | |
885 | lttng_live->viewer_connection; | |
886 | uint64_t session_id = session->id; | |
887 | ||
888 | if (!session->attached) { | |
889 | return 0; | |
890 | } | |
891 | ||
892 | cmd.cmd = htobe32(LTTNG_VIEWER_DETACH_SESSION); | |
893 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
894 | cmd.cmd_version = htobe32(0); | |
895 | ||
896 | memset(&rq, 0, sizeof(rq)); | |
897 | rq.session_id = htobe64(session_id); | |
898 | ||
4c66436f | 899 | ret_len = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); |
1cb3cdd7 MJ |
900 | if (ret_len == BT_SOCKET_ERROR) { |
901 | BT_LOGE("Error sending cmd: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
902 | goto error; |
903 | } | |
1d2f35fd | 904 | BT_ASSERT(ret_len == sizeof(cmd)); |
7cdc2bab | 905 | |
4c66436f | 906 | ret_len = lttng_live_send(viewer_connection, &rq, sizeof(rq)); |
1cb3cdd7 MJ |
907 | if (ret_len == BT_SOCKET_ERROR) { |
908 | BT_LOGE("Error sending detach request: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
909 | goto error; |
910 | } | |
1d2f35fd | 911 | BT_ASSERT(ret_len == sizeof(rq)); |
7cdc2bab | 912 | |
4c66436f | 913 | ret_len = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); |
7cdc2bab | 914 | if (ret_len == 0) { |
087bc060 | 915 | BT_LOGI("Remote side has closed connection"); |
7cdc2bab MD |
916 | goto error; |
917 | } | |
1cb3cdd7 MJ |
918 | if (ret_len == BT_SOCKET_ERROR) { |
919 | BT_LOGE("Error receiving detach response: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
920 | goto error; |
921 | } | |
1d2f35fd | 922 | BT_ASSERT(ret_len == sizeof(rp)); |
7cdc2bab MD |
923 | |
924 | switch(be32toh(rp.status)) { | |
925 | case LTTNG_VIEWER_DETACH_SESSION_OK: | |
926 | break; | |
927 | case LTTNG_VIEWER_DETACH_SESSION_UNK: | |
087bc060 | 928 | BT_LOGW("Session id %" PRIu64 " is unknown", session_id); |
7cdc2bab MD |
929 | goto error; |
930 | case LTTNG_VIEWER_DETACH_SESSION_ERR: | |
087bc060 | 931 | BT_LOGW("Error detaching session id %" PRIu64 "", session_id); |
7cdc2bab MD |
932 | goto error; |
933 | default: | |
087bc060 | 934 | BT_LOGE("Unknown detach return code %u", be32toh(rp.status)); |
7cdc2bab MD |
935 | goto error; |
936 | } | |
937 | ||
938 | session->attached = false; | |
939 | ||
940 | return 0; | |
941 | ||
942 | error: | |
943 | return -1; | |
944 | } | |
945 | ||
946 | BT_HIDDEN | |
947 | ssize_t lttng_live_get_one_metadata_packet(struct lttng_live_trace *trace, | |
948 | FILE *fp) | |
949 | { | |
950 | uint64_t len = 0; | |
951 | int ret; | |
952 | struct lttng_viewer_cmd cmd; | |
953 | struct lttng_viewer_get_metadata rq; | |
954 | struct lttng_viewer_metadata_packet rp; | |
955 | char *data = NULL; | |
956 | ssize_t ret_len; | |
957 | struct lttng_live_session *session = trace->session; | |
958 | struct lttng_live_component *lttng_live = session->lttng_live; | |
959 | struct lttng_live_metadata *metadata = trace->metadata; | |
960 | struct bt_live_viewer_connection *viewer_connection = | |
961 | lttng_live->viewer_connection; | |
962 | ||
963 | rq.stream_id = htobe64(metadata->stream_id); | |
964 | cmd.cmd = htobe32(LTTNG_VIEWER_GET_METADATA); | |
965 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
966 | cmd.cmd_version = htobe32(0); | |
967 | ||
4c66436f | 968 | ret_len = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); |
1cb3cdd7 MJ |
969 | if (ret_len == BT_SOCKET_ERROR) { |
970 | BT_LOGE("Error sending cmd: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
971 | goto error; |
972 | } | |
1d2f35fd | 973 | BT_ASSERT(ret_len == sizeof(cmd)); |
7cdc2bab | 974 | |
4c66436f | 975 | ret_len = lttng_live_send(viewer_connection, &rq, sizeof(rq)); |
1cb3cdd7 MJ |
976 | if (ret_len == BT_SOCKET_ERROR) { |
977 | BT_LOGE("Error sending get_metadata request: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
978 | goto error; |
979 | } | |
1d2f35fd | 980 | BT_ASSERT(ret_len == sizeof(rq)); |
7cdc2bab | 981 | |
4c66436f | 982 | ret_len = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); |
7cdc2bab | 983 | if (ret_len == 0) { |
087bc060 | 984 | BT_LOGI("Remote side has closed connection"); |
7cdc2bab MD |
985 | goto error; |
986 | } | |
1cb3cdd7 MJ |
987 | if (ret_len == BT_SOCKET_ERROR) { |
988 | BT_LOGE("Error receiving get_metadata response: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
989 | goto error; |
990 | } | |
1d2f35fd | 991 | BT_ASSERT(ret_len == sizeof(rp)); |
7cdc2bab MD |
992 | |
993 | switch (be32toh(rp.status)) { | |
994 | case LTTNG_VIEWER_METADATA_OK: | |
087bc060 | 995 | BT_LOGD("get_metadata : OK"); |
7cdc2bab MD |
996 | break; |
997 | case LTTNG_VIEWER_NO_NEW_METADATA: | |
087bc060 | 998 | BT_LOGD("get_metadata : NO NEW"); |
7cdc2bab MD |
999 | ret = 0; |
1000 | goto end; | |
1001 | case LTTNG_VIEWER_METADATA_ERR: | |
087bc060 | 1002 | BT_LOGD("get_metadata : ERR"); |
7cdc2bab MD |
1003 | goto error; |
1004 | default: | |
087bc060 | 1005 | BT_LOGD("get_metadata : UNKNOWN"); |
7cdc2bab MD |
1006 | goto error; |
1007 | } | |
1008 | ||
1009 | len = be64toh(rp.len); | |
087bc060 | 1010 | BT_LOGD("Writing %" PRIu64" bytes to metadata", len); |
7cdc2bab MD |
1011 | if (len <= 0) { |
1012 | goto error; | |
1013 | } | |
1014 | ||
1015 | data = zmalloc(len); | |
1016 | if (!data) { | |
087bc060 | 1017 | BT_LOGE("relay data zmalloc: %s", strerror(errno)); |
7cdc2bab MD |
1018 | goto error; |
1019 | } | |
4c66436f | 1020 | ret_len = lttng_live_recv(viewer_connection, data, len); |
7cdc2bab | 1021 | if (ret_len == 0) { |
087bc060 | 1022 | BT_LOGI("Remote side has closed connection"); |
7cdc2bab MD |
1023 | goto error_free_data; |
1024 | } | |
1cb3cdd7 MJ |
1025 | if (ret_len == BT_SOCKET_ERROR) { |
1026 | BT_LOGE("Error receiving trace packet: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
1027 | goto error_free_data; |
1028 | } | |
1d2f35fd | 1029 | BT_ASSERT(ret_len == len); |
7cdc2bab MD |
1030 | |
1031 | do { | |
1032 | ret_len = fwrite(data, 1, len, fp); | |
1033 | } while (ret_len < 0 && errno == EINTR); | |
1034 | if (ret_len < 0) { | |
087bc060 | 1035 | BT_LOGE("Writing in the metadata fp"); |
7cdc2bab MD |
1036 | goto error_free_data; |
1037 | } | |
1d2f35fd | 1038 | BT_ASSERT(ret_len == len); |
7cdc2bab MD |
1039 | free(data); |
1040 | ret = len; | |
1041 | end: | |
1042 | return ret; | |
1043 | ||
1044 | error_free_data: | |
1045 | free(data); | |
1046 | error: | |
1047 | return -1; | |
1048 | } | |
1049 | ||
1050 | /* | |
1051 | * Assign the fields from a lttng_viewer_index to a packet_index. | |
1052 | */ | |
1053 | static | |
1054 | void lttng_index_to_packet_index(struct lttng_viewer_index *lindex, | |
1055 | struct packet_index *pindex) | |
1056 | { | |
1d2f35fd PP |
1057 | BT_ASSERT(lindex); |
1058 | BT_ASSERT(pindex); | |
7cdc2bab MD |
1059 | |
1060 | pindex->offset = be64toh(lindex->offset); | |
1061 | pindex->packet_size = be64toh(lindex->packet_size); | |
1062 | pindex->content_size = be64toh(lindex->content_size); | |
1063 | pindex->ts_cycles.timestamp_begin = be64toh(lindex->timestamp_begin); | |
1064 | pindex->ts_cycles.timestamp_end = be64toh(lindex->timestamp_end); | |
1065 | pindex->events_discarded = be64toh(lindex->events_discarded); | |
1066 | } | |
1067 | ||
1068 | BT_HIDDEN | |
50842bdc | 1069 | enum bt_lttng_live_iterator_status lttng_live_get_next_index(struct lttng_live_component *lttng_live, |
7cdc2bab MD |
1070 | struct lttng_live_stream_iterator *stream, |
1071 | struct packet_index *index) | |
1072 | { | |
1073 | struct lttng_viewer_cmd cmd; | |
1074 | struct lttng_viewer_get_next_index rq; | |
1075 | ssize_t ret_len; | |
1076 | struct lttng_viewer_index rp; | |
1077 | uint32_t flags, status; | |
50842bdc PP |
1078 | enum bt_lttng_live_iterator_status retstatus = |
1079 | BT_LTTNG_LIVE_ITERATOR_STATUS_OK; | |
7cdc2bab MD |
1080 | struct bt_live_viewer_connection *viewer_connection = |
1081 | lttng_live->viewer_connection; | |
1082 | struct lttng_live_trace *trace = stream->trace; | |
1083 | ||
1084 | cmd.cmd = htobe32(LTTNG_VIEWER_GET_NEXT_INDEX); | |
1085 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1086 | cmd.cmd_version = htobe32(0); | |
1087 | ||
1088 | memset(&rq, 0, sizeof(rq)); | |
1089 | rq.stream_id = htobe64(stream->viewer_stream_id); | |
1090 | ||
4c66436f | 1091 | ret_len = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); |
1cb3cdd7 MJ |
1092 | if (ret_len == BT_SOCKET_ERROR) { |
1093 | BT_LOGE("Error sending cmd: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
1094 | goto error; |
1095 | } | |
1d2f35fd | 1096 | BT_ASSERT(ret_len == sizeof(cmd)); |
7cdc2bab | 1097 | |
4c66436f | 1098 | ret_len = lttng_live_send(viewer_connection, &rq, sizeof(rq)); |
1cb3cdd7 MJ |
1099 | if (ret_len == BT_SOCKET_ERROR) { |
1100 | BT_LOGE("Error sending get_next_index request: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
1101 | goto error; |
1102 | } | |
1d2f35fd | 1103 | BT_ASSERT(ret_len == sizeof(rq)); |
7cdc2bab | 1104 | |
4c66436f | 1105 | ret_len = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); |
7cdc2bab | 1106 | if (ret_len == 0) { |
087bc060 | 1107 | BT_LOGI("Remote side has closed connection"); |
7cdc2bab MD |
1108 | goto error; |
1109 | } | |
1cb3cdd7 MJ |
1110 | if (ret_len == BT_SOCKET_ERROR) { |
1111 | BT_LOGE("Error receiving get_next_index response: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
1112 | goto error; |
1113 | } | |
1d2f35fd | 1114 | BT_ASSERT(ret_len == sizeof(rp)); |
7cdc2bab MD |
1115 | |
1116 | flags = be32toh(rp.flags); | |
1117 | status = be32toh(rp.status); | |
1118 | ||
1119 | switch (status) { | |
1120 | case LTTNG_VIEWER_INDEX_INACTIVE: | |
1121 | { | |
1122 | uint64_t ctf_stream_class_id; | |
1123 | ||
087bc060 | 1124 | BT_LOGD("get_next_index: inactive"); |
7cdc2bab MD |
1125 | memset(index, 0, sizeof(struct packet_index)); |
1126 | index->ts_cycles.timestamp_end = be64toh(rp.timestamp_end); | |
1127 | stream->current_inactivity_timestamp = index->ts_cycles.timestamp_end; | |
1128 | ctf_stream_class_id = be64toh(rp.stream_id); | |
1129 | if (stream->ctf_stream_class_id != -1ULL) { | |
1d2f35fd | 1130 | BT_ASSERT(stream->ctf_stream_class_id == |
7cdc2bab MD |
1131 | ctf_stream_class_id); |
1132 | } else { | |
1133 | stream->ctf_stream_class_id = ctf_stream_class_id; | |
1134 | } | |
1135 | stream->state = LTTNG_LIVE_STREAM_QUIESCENT; | |
1136 | break; | |
1137 | } | |
1138 | case LTTNG_VIEWER_INDEX_OK: | |
1139 | { | |
1140 | uint64_t ctf_stream_class_id; | |
1141 | ||
087bc060 | 1142 | BT_LOGD("get_next_index: OK"); |
7cdc2bab MD |
1143 | lttng_index_to_packet_index(&rp, index); |
1144 | ctf_stream_class_id = be64toh(rp.stream_id); | |
1145 | if (stream->ctf_stream_class_id != -1ULL) { | |
1d2f35fd | 1146 | BT_ASSERT(stream->ctf_stream_class_id == |
7cdc2bab MD |
1147 | ctf_stream_class_id); |
1148 | } else { | |
1149 | stream->ctf_stream_class_id = ctf_stream_class_id; | |
1150 | } | |
1151 | ||
1152 | stream->state = LTTNG_LIVE_STREAM_ACTIVE_DATA; | |
1153 | stream->current_packet_end_timestamp = | |
1154 | index->ts_cycles.timestamp_end; | |
1155 | ||
1156 | if (flags & LTTNG_VIEWER_FLAG_NEW_METADATA) { | |
087bc060 | 1157 | BT_LOGD("get_next_index: new metadata needed"); |
7cdc2bab MD |
1158 | trace->new_metadata_needed = true; |
1159 | } | |
1160 | if (flags & LTTNG_VIEWER_FLAG_NEW_STREAM) { | |
087bc060 | 1161 | BT_LOGD("get_next_index: new streams needed"); |
7cdc2bab MD |
1162 | lttng_live_need_new_streams(lttng_live); |
1163 | } | |
1164 | break; | |
1165 | } | |
1166 | case LTTNG_VIEWER_INDEX_RETRY: | |
087bc060 | 1167 | BT_LOGD("get_next_index: retry"); |
7cdc2bab | 1168 | memset(index, 0, sizeof(struct packet_index)); |
50842bdc | 1169 | retstatus = BT_LTTNG_LIVE_ITERATOR_STATUS_AGAIN; |
7cdc2bab MD |
1170 | stream->state = LTTNG_LIVE_STREAM_ACTIVE_NO_DATA; |
1171 | goto end; | |
1172 | case LTTNG_VIEWER_INDEX_HUP: | |
087bc060 | 1173 | BT_LOGD("get_next_index: stream hung up"); |
7cdc2bab MD |
1174 | memset(index, 0, sizeof(struct packet_index)); |
1175 | index->offset = EOF; | |
50842bdc | 1176 | retstatus = BT_LTTNG_LIVE_ITERATOR_STATUS_END; |
7cdc2bab MD |
1177 | stream->state = LTTNG_LIVE_STREAM_EOF; |
1178 | break; | |
1179 | case LTTNG_VIEWER_INDEX_ERR: | |
087bc060 | 1180 | BT_LOGE("get_next_index: error"); |
7cdc2bab MD |
1181 | memset(index, 0, sizeof(struct packet_index)); |
1182 | stream->state = LTTNG_LIVE_STREAM_ACTIVE_NO_DATA; | |
1183 | goto error; | |
1184 | default: | |
087bc060 | 1185 | BT_LOGE("get_next_index: unknown value"); |
7cdc2bab MD |
1186 | memset(index, 0, sizeof(struct packet_index)); |
1187 | stream->state = LTTNG_LIVE_STREAM_ACTIVE_NO_DATA; | |
1188 | goto error; | |
1189 | } | |
1190 | end: | |
1191 | return retstatus; | |
1192 | ||
1193 | error: | |
6f79a7cf | 1194 | if (lttng_live_is_canceled(lttng_live)) { |
50842bdc | 1195 | retstatus = BT_LTTNG_LIVE_ITERATOR_STATUS_AGAIN; |
4c66436f | 1196 | } else { |
50842bdc | 1197 | retstatus = BT_LTTNG_LIVE_ITERATOR_STATUS_ERROR; |
4c66436f | 1198 | } |
7cdc2bab MD |
1199 | return retstatus; |
1200 | } | |
1201 | ||
1202 | BT_HIDDEN | |
a940e807 | 1203 | enum bt_msg_iter_medium_status lttng_live_get_stream_bytes(struct lttng_live_component *lttng_live, |
7cdc2bab MD |
1204 | struct lttng_live_stream_iterator *stream, uint8_t *buf, uint64_t offset, |
1205 | uint64_t req_len, uint64_t *recv_len) | |
1206 | { | |
a940e807 | 1207 | enum bt_msg_iter_medium_status retstatus = BT_MSG_ITER_MEDIUM_STATUS_OK; |
7cdc2bab MD |
1208 | struct lttng_viewer_cmd cmd; |
1209 | struct lttng_viewer_get_packet rq; | |
1210 | struct lttng_viewer_trace_packet rp; | |
1211 | ssize_t ret_len; | |
1212 | uint32_t flags, status; | |
1213 | struct bt_live_viewer_connection *viewer_connection = | |
1214 | lttng_live->viewer_connection; | |
1215 | struct lttng_live_trace *trace = stream->trace; | |
1216 | ||
087bc060 | 1217 | BT_LOGD("lttng_live_get_stream_bytes: offset=%" PRIu64 ", req_len=%" PRIu64, |
7cdc2bab MD |
1218 | offset, req_len); |
1219 | cmd.cmd = htobe32(LTTNG_VIEWER_GET_PACKET); | |
1220 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1221 | cmd.cmd_version = htobe32(0); | |
1222 | ||
1223 | memset(&rq, 0, sizeof(rq)); | |
1224 | rq.stream_id = htobe64(stream->viewer_stream_id); | |
1225 | rq.offset = htobe64(offset); | |
1226 | rq.len = htobe32(req_len); | |
1227 | ||
4c66436f | 1228 | ret_len = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); |
1cb3cdd7 MJ |
1229 | if (ret_len == BT_SOCKET_ERROR) { |
1230 | BT_LOGE("Error sending cmd: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
1231 | goto error; |
1232 | } | |
1d2f35fd | 1233 | BT_ASSERT(ret_len == sizeof(cmd)); |
7cdc2bab | 1234 | |
4c66436f | 1235 | ret_len = lttng_live_send(viewer_connection, &rq, sizeof(rq)); |
1cb3cdd7 MJ |
1236 | if (ret_len == BT_SOCKET_ERROR) { |
1237 | BT_LOGE("Error sending get_data request: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
1238 | goto error; |
1239 | } | |
1d2f35fd | 1240 | BT_ASSERT(ret_len == sizeof(rq)); |
7cdc2bab | 1241 | |
4c66436f | 1242 | ret_len = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); |
7cdc2bab | 1243 | if (ret_len == 0) { |
087bc060 | 1244 | BT_LOGI("Remote side has closed connection"); |
7cdc2bab MD |
1245 | goto error; |
1246 | } | |
1cb3cdd7 MJ |
1247 | if (ret_len == BT_SOCKET_ERROR) { |
1248 | BT_LOGE("Error receiving get_data response: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
1249 | goto error; |
1250 | } | |
1251 | if (ret_len != sizeof(rp)) { | |
087bc060 MD |
1252 | BT_LOGE("get_data_packet: expected %zu" |
1253 | ", received %zd", sizeof(rp), | |
7cdc2bab MD |
1254 | ret_len); |
1255 | goto error; | |
1256 | } | |
1257 | ||
1258 | flags = be32toh(rp.flags); | |
1259 | status = be32toh(rp.status); | |
1260 | ||
1261 | switch (status) { | |
1262 | case LTTNG_VIEWER_GET_PACKET_OK: | |
1263 | req_len = be32toh(rp.len); | |
087bc060 | 1264 | BT_LOGD("get_data_packet: Ok, packet size : %" PRIu64 "", req_len); |
7cdc2bab MD |
1265 | break; |
1266 | case LTTNG_VIEWER_GET_PACKET_RETRY: | |
1267 | /* Unimplemented by relay daemon */ | |
087bc060 | 1268 | BT_LOGD("get_data_packet: retry"); |
a940e807 | 1269 | retstatus = BT_MSG_ITER_MEDIUM_STATUS_AGAIN; |
7cdc2bab MD |
1270 | goto end; |
1271 | case LTTNG_VIEWER_GET_PACKET_ERR: | |
1272 | if (flags & LTTNG_VIEWER_FLAG_NEW_METADATA) { | |
087bc060 | 1273 | BT_LOGD("get_data_packet: new metadata needed, try again later"); |
7cdc2bab MD |
1274 | trace->new_metadata_needed = true; |
1275 | } | |
1276 | if (flags & LTTNG_VIEWER_FLAG_NEW_STREAM) { | |
087bc060 | 1277 | BT_LOGD("get_data_packet: new streams needed, try again later"); |
7cdc2bab MD |
1278 | lttng_live_need_new_streams(lttng_live); |
1279 | } | |
1280 | if (flags & (LTTNG_VIEWER_FLAG_NEW_METADATA | |
1281 | | LTTNG_VIEWER_FLAG_NEW_STREAM)) { | |
a940e807 | 1282 | retstatus = BT_MSG_ITER_MEDIUM_STATUS_AGAIN; |
7cdc2bab MD |
1283 | goto end; |
1284 | } | |
087bc060 | 1285 | BT_LOGE("get_data_packet: error"); |
7cdc2bab MD |
1286 | goto error; |
1287 | case LTTNG_VIEWER_GET_PACKET_EOF: | |
a940e807 | 1288 | retstatus = BT_MSG_ITER_MEDIUM_STATUS_EOF; |
7cdc2bab MD |
1289 | goto end; |
1290 | default: | |
087bc060 | 1291 | BT_LOGE("get_data_packet: unknown"); |
7cdc2bab MD |
1292 | goto error; |
1293 | } | |
1294 | ||
1295 | if (req_len == 0) { | |
1296 | goto error; | |
1297 | } | |
1298 | ||
4c66436f | 1299 | ret_len = lttng_live_recv(viewer_connection, buf, req_len); |
7cdc2bab | 1300 | if (ret_len == 0) { |
087bc060 | 1301 | BT_LOGI("Remote side has closed connection"); |
7cdc2bab MD |
1302 | goto error; |
1303 | } | |
1cb3cdd7 MJ |
1304 | if (ret_len == BT_SOCKET_ERROR) { |
1305 | BT_LOGE("Error receiving trace packet: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
1306 | goto error; |
1307 | } | |
1d2f35fd | 1308 | BT_ASSERT(ret_len == req_len); |
7cdc2bab MD |
1309 | *recv_len = ret_len; |
1310 | end: | |
1311 | return retstatus; | |
1312 | ||
1313 | error: | |
6f79a7cf | 1314 | if (lttng_live_is_canceled(lttng_live)) { |
a940e807 | 1315 | retstatus = BT_MSG_ITER_MEDIUM_STATUS_AGAIN; |
4c66436f | 1316 | } else { |
a940e807 | 1317 | retstatus = BT_MSG_ITER_MEDIUM_STATUS_ERROR; |
4c66436f | 1318 | } |
7cdc2bab MD |
1319 | return retstatus; |
1320 | } | |
1321 | ||
1322 | /* | |
1323 | * Request new streams for a session. | |
1324 | */ | |
1325 | BT_HIDDEN | |
50842bdc | 1326 | enum bt_lttng_live_iterator_status lttng_live_get_new_streams( |
7cdc2bab MD |
1327 | struct lttng_live_session *session) |
1328 | { | |
50842bdc PP |
1329 | enum bt_lttng_live_iterator_status status = |
1330 | BT_LTTNG_LIVE_ITERATOR_STATUS_OK; | |
7cdc2bab MD |
1331 | struct lttng_viewer_cmd cmd; |
1332 | struct lttng_viewer_new_streams_request rq; | |
1333 | struct lttng_viewer_new_streams_response rp; | |
1334 | ssize_t ret_len; | |
1335 | struct lttng_live_component *lttng_live = session->lttng_live; | |
1336 | struct bt_live_viewer_connection *viewer_connection = | |
1337 | lttng_live->viewer_connection; | |
1338 | uint32_t streams_count; | |
1339 | ||
1340 | if (!session->new_streams_needed) { | |
50842bdc | 1341 | return BT_LTTNG_LIVE_ITERATOR_STATUS_OK; |
7cdc2bab MD |
1342 | } |
1343 | ||
1344 | cmd.cmd = htobe32(LTTNG_VIEWER_GET_NEW_STREAMS); | |
1345 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1346 | cmd.cmd_version = htobe32(0); | |
1347 | ||
1348 | memset(&rq, 0, sizeof(rq)); | |
1349 | rq.session_id = htobe64(session->id); | |
1350 | ||
4c66436f | 1351 | ret_len = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); |
1cb3cdd7 MJ |
1352 | if (ret_len == BT_SOCKET_ERROR) { |
1353 | BT_LOGE("Error sending cmd: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
1354 | goto error; |
1355 | } | |
1d2f35fd | 1356 | BT_ASSERT(ret_len == sizeof(cmd)); |
7cdc2bab | 1357 | |
4c66436f | 1358 | ret_len = lttng_live_send(viewer_connection, &rq, sizeof(rq)); |
1cb3cdd7 MJ |
1359 | if (ret_len == BT_SOCKET_ERROR) { |
1360 | BT_LOGE("Error sending get_new_streams request: %s", bt_socket_errormsg()); | |
7cdc2bab MD |
1361 | goto error; |
1362 | } | |
1d2f35fd | 1363 | BT_ASSERT(ret_len == sizeof(rq)); |
7cdc2bab | 1364 | |
4c66436f | 1365 | ret_len = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); |
7cdc2bab | 1366 | if (ret_len == 0) { |
087bc060 | 1367 | BT_LOGI("Remote side has closed connection"); |
7cdc2bab MD |
1368 | goto error; |
1369 | } | |
1cb3cdd7 | 1370 | if (ret_len == BT_SOCKET_ERROR) { |
087bc060 | 1371 | BT_LOGE("Error receiving get_new_streams response"); |
7cdc2bab MD |
1372 | goto error; |
1373 | } | |
1d2f35fd | 1374 | BT_ASSERT(ret_len == sizeof(rp)); |
7cdc2bab MD |
1375 | |
1376 | streams_count = be32toh(rp.streams_count); | |
1377 | ||
1378 | switch(be32toh(rp.status)) { | |
1379 | case LTTNG_VIEWER_NEW_STREAMS_OK: | |
1380 | session->new_streams_needed = false; | |
1381 | break; | |
1382 | case LTTNG_VIEWER_NEW_STREAMS_NO_NEW: | |
1383 | session->new_streams_needed = false; | |
1384 | goto end; | |
1385 | case LTTNG_VIEWER_NEW_STREAMS_HUP: | |
1386 | session->new_streams_needed = false; | |
1387 | session->closed = true; | |
50842bdc | 1388 | status = BT_LTTNG_LIVE_ITERATOR_STATUS_END; |
7cdc2bab MD |
1389 | goto end; |
1390 | case LTTNG_VIEWER_NEW_STREAMS_ERR: | |
087bc060 | 1391 | BT_LOGE("get_new_streams error"); |
7cdc2bab MD |
1392 | goto error; |
1393 | default: | |
087bc060 | 1394 | BT_LOGE("Unknown return code %u", be32toh(rp.status)); |
7cdc2bab MD |
1395 | goto error; |
1396 | } | |
1397 | ||
1398 | if (receive_streams(session, streams_count)) { | |
1399 | goto error; | |
1400 | } | |
1401 | end: | |
1402 | return status; | |
1403 | ||
1404 | error: | |
6f79a7cf | 1405 | if (lttng_live_is_canceled(lttng_live)) { |
50842bdc | 1406 | status = BT_LTTNG_LIVE_ITERATOR_STATUS_AGAIN; |
4c66436f | 1407 | } else { |
50842bdc | 1408 | status = BT_LTTNG_LIVE_ITERATOR_STATUS_ERROR; |
4c66436f | 1409 | } |
7cdc2bab MD |
1410 | return status; |
1411 | } | |
1412 | ||
1413 | BT_HIDDEN | |
1414 | struct bt_live_viewer_connection * | |
4c66436f MD |
1415 | bt_live_viewer_connection_create(const char *url, |
1416 | struct lttng_live_component *lttng_live) | |
7cdc2bab MD |
1417 | { |
1418 | struct bt_live_viewer_connection *viewer_connection; | |
1419 | ||
1420 | viewer_connection = g_new0(struct bt_live_viewer_connection, 1); | |
1421 | ||
1cb3cdd7 MJ |
1422 | if (bt_socket_init() != 0) { |
1423 | goto error; | |
1424 | } | |
1425 | ||
7cdc2bab | 1426 | bt_object_init(&viewer_connection->obj, connection_release); |
1cb3cdd7 | 1427 | viewer_connection->control_sock = BT_INVALID_SOCKET; |
7cdc2bab | 1428 | viewer_connection->port = -1; |
4c66436f | 1429 | viewer_connection->lttng_live = lttng_live; |
7cdc2bab MD |
1430 | viewer_connection->url = g_string_new(url); |
1431 | if (!viewer_connection->url) { | |
1432 | goto error; | |
1433 | } | |
1434 | ||
087bc060 | 1435 | BT_LOGD("Establishing connection to url \"%s\"...", url); |
7cdc2bab MD |
1436 | if (lttng_live_connect_viewer(viewer_connection)) { |
1437 | goto error_report; | |
1438 | } | |
087bc060 | 1439 | BT_LOGD("Connection to url \"%s\" is established", url); |
7cdc2bab MD |
1440 | return viewer_connection; |
1441 | ||
1442 | error_report: | |
087bc060 | 1443 | BT_LOGW("Failure to establish connection to url \"%s\"", url); |
7cdc2bab MD |
1444 | error: |
1445 | g_free(viewer_connection); | |
1446 | return NULL; | |
1447 | } | |
1448 | ||
1449 | BT_HIDDEN | |
1450 | void bt_live_viewer_connection_destroy(struct bt_live_viewer_connection *viewer_connection) | |
1451 | { | |
087bc060 | 1452 | BT_LOGD("Closing connection to url \"%s\"", viewer_connection->url->str); |
7cdc2bab MD |
1453 | lttng_live_disconnect_viewer(viewer_connection); |
1454 | g_string_free(viewer_connection->url, TRUE); | |
94b828f3 MD |
1455 | if (viewer_connection->relay_hostname) { |
1456 | g_string_free(viewer_connection->relay_hostname, TRUE); | |
1457 | } | |
1458 | if (viewer_connection->target_hostname) { | |
1459 | g_string_free(viewer_connection->target_hostname, TRUE); | |
1460 | } | |
1461 | if (viewer_connection->session_name) { | |
1462 | g_string_free(viewer_connection->session_name, TRUE); | |
1463 | } | |
7cdc2bab | 1464 | g_free(viewer_connection); |
1cb3cdd7 MJ |
1465 | |
1466 | bt_socket_fini(); | |
7cdc2bab | 1467 | } |