Commit | Line | Data |
---|---|---|
7cdc2bab | 1 | /* |
0235b0db | 2 | * SPDX-License-Identifier: MIT |
7cdc2bab | 3 | * |
0235b0db MJ |
4 | * Copyright 2019 Francis Deslauriers <francis.deslauriers@efficios.com> |
5 | * Copyright 2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
7cdc2bab MD |
6 | */ |
7 | ||
c802cacb | 8 | #include <glib.h> |
7cdc2bab | 9 | #include <stdint.h> |
3c22a242 | 10 | #include <stdio.h> |
3c22a242 | 11 | |
c802cacb SM |
12 | #include <babeltrace2/babeltrace.h> |
13 | ||
14 | #define BT_COMP_LOG_SELF_COMP (viewer_connection->self_comp) | |
15 | #define BT_LOG_OUTPUT_LEVEL (viewer_connection->log_level) | |
16 | #define BT_LOG_TAG "PLUGIN/SRC.CTF.LTTNG-LIVE/VIEWER" | |
17 | #include "logging/comp-logging.h" | |
7cdc2bab | 18 | |
578e048b | 19 | #include "common/common.h" |
83ad336c | 20 | #include "compat/endian.h" /* IWYU pragma: keep */ |
7cdc2bab | 21 | |
c802cacb | 22 | #include "data-stream.hpp" |
087cd0f5 | 23 | #include "lttng-live.hpp" |
087cd0f5 | 24 | #include "lttng-viewer-abi.hpp" |
087cd0f5 | 25 | #include "metadata.hpp" |
c802cacb | 26 | #include "viewer-connection.hpp" |
7cdc2bab | 27 | |
4164020e SM |
28 | #define viewer_handle_send_recv_status(_self_comp, _self_comp_class, _status, _action, _msg_str) \ |
29 | do { \ | |
30 | switch (_status) { \ | |
31 | case LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED: \ | |
32 | break; \ | |
33 | case LTTNG_LIVE_VIEWER_STATUS_ERROR: \ | |
34 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(_self_comp, _self_comp_class, \ | |
35 | "Error " _action " " _msg_str); \ | |
36 | break; \ | |
37 | default: \ | |
38 | bt_common_abort(); \ | |
39 | } \ | |
40 | } while (0) | |
41 | ||
42 | #define viewer_handle_send_status(_self_comp, _self_comp_class, _status, _msg_str) \ | |
43 | viewer_handle_send_recv_status(_self_comp, _self_comp_class, _status, "sending", _msg_str) | |
44 | ||
45 | #define viewer_handle_recv_status(_self_comp, _self_comp_class, _status, _msg_str) \ | |
46 | viewer_handle_send_recv_status(_self_comp, _self_comp_class, _status, "receiving", _msg_str) | |
47 | ||
48 | #define LTTNG_LIVE_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE_ERRNO(_self_comp, _self_comp_class, _msg, \ | |
49 | _fmt, ...) \ | |
50 | do { \ | |
51 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(_self_comp, _self_comp_class, _msg ": %s" _fmt, \ | |
52 | bt_socket_errormsg(), ##__VA_ARGS__); \ | |
53 | } while (0) | |
54 | ||
55 | static const char *lttng_viewer_command_string(enum lttng_viewer_command cmd) | |
f93afbf9 | 56 | { |
4164020e SM |
57 | switch (cmd) { |
58 | case LTTNG_VIEWER_CONNECT: | |
59 | return "CONNECT"; | |
60 | case LTTNG_VIEWER_LIST_SESSIONS: | |
61 | return "LIST_SESSIONS"; | |
62 | case LTTNG_VIEWER_ATTACH_SESSION: | |
63 | return "ATTACH_SESSION"; | |
64 | case LTTNG_VIEWER_GET_NEXT_INDEX: | |
65 | return "GET_NEXT_INDEX"; | |
66 | case LTTNG_VIEWER_GET_PACKET: | |
67 | return "GET_PACKET"; | |
68 | case LTTNG_VIEWER_GET_METADATA: | |
69 | return "GET_METADATA"; | |
70 | case LTTNG_VIEWER_GET_NEW_STREAMS: | |
71 | return "GET_NEW_STREAMS"; | |
72 | case LTTNG_VIEWER_CREATE_SESSION: | |
73 | return "CREATE_SESSION"; | |
74 | case LTTNG_VIEWER_DETACH_SESSION: | |
75 | return "DETACH_SESSION"; | |
76 | } | |
77 | ||
78 | bt_common_abort(); | |
f93afbf9 FD |
79 | } |
80 | ||
4164020e SM |
81 | static const char * |
82 | lttng_viewer_next_index_return_code_string(enum lttng_viewer_next_index_return_code code) | |
f93afbf9 | 83 | { |
4164020e SM |
84 | switch (code) { |
85 | case LTTNG_VIEWER_INDEX_OK: | |
86 | return "INDEX_OK"; | |
87 | case LTTNG_VIEWER_INDEX_RETRY: | |
88 | return "INDEX_RETRY"; | |
89 | case LTTNG_VIEWER_INDEX_HUP: | |
90 | return "INDEX_HUP"; | |
91 | case LTTNG_VIEWER_INDEX_ERR: | |
92 | return "INDEX_ERR"; | |
93 | case LTTNG_VIEWER_INDEX_INACTIVE: | |
94 | return "INDEX_INACTIVE"; | |
95 | case LTTNG_VIEWER_INDEX_EOF: | |
96 | return "INDEX_EOF"; | |
97 | } | |
98 | ||
99 | bt_common_abort(); | |
f93afbf9 FD |
100 | } |
101 | ||
4164020e | 102 | static const char *lttng_viewer_next_index_return_code_string(uint32_t code) |
087cd0f5 | 103 | { |
4164020e | 104 | return lttng_viewer_next_index_return_code_string((lttng_viewer_next_index_return_code) code); |
087cd0f5 SM |
105 | } |
106 | ||
4164020e SM |
107 | static const char * |
108 | lttng_viewer_get_packet_return_code_string(enum lttng_viewer_get_packet_return_code code) | |
f93afbf9 | 109 | { |
4164020e SM |
110 | switch (code) { |
111 | case LTTNG_VIEWER_GET_PACKET_OK: | |
112 | return "GET_PACKET_OK"; | |
113 | case LTTNG_VIEWER_GET_PACKET_RETRY: | |
114 | return "GET_PACKET_RETRY"; | |
115 | case LTTNG_VIEWER_GET_PACKET_ERR: | |
116 | return "GET_PACKET_ERR"; | |
117 | case LTTNG_VIEWER_GET_PACKET_EOF: | |
118 | return "GET_PACKET_EOF"; | |
119 | } | |
120 | ||
121 | bt_common_abort(); | |
f93afbf9 FD |
122 | }; |
123 | ||
4164020e | 124 | static const char *lttng_viewer_get_packet_return_code_string(uint32_t code) |
087cd0f5 | 125 | { |
4164020e | 126 | return lttng_viewer_get_packet_return_code_string((lttng_viewer_get_packet_return_code) code); |
087cd0f5 SM |
127 | } |
128 | ||
4164020e | 129 | static const char *lttng_viewer_seek_string(enum lttng_viewer_seek seek) |
f93afbf9 | 130 | { |
4164020e SM |
131 | switch (seek) { |
132 | case LTTNG_VIEWER_SEEK_BEGINNING: | |
133 | return "SEEK_BEGINNING"; | |
134 | case LTTNG_VIEWER_SEEK_LAST: | |
135 | return "SEEK_LAST"; | |
136 | } | |
137 | ||
138 | bt_common_abort(); | |
f93afbf9 FD |
139 | } |
140 | ||
4164020e SM |
141 | static inline enum lttng_live_iterator_status |
142 | viewer_status_to_live_iterator_status(enum lttng_live_viewer_status viewer_status) | |
f79c2d7a | 143 | { |
4164020e SM |
144 | switch (viewer_status) { |
145 | case LTTNG_LIVE_VIEWER_STATUS_OK: | |
146 | return LTTNG_LIVE_ITERATOR_STATUS_OK; | |
147 | case LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED: | |
148 | return LTTNG_LIVE_ITERATOR_STATUS_AGAIN; | |
149 | case LTTNG_LIVE_VIEWER_STATUS_ERROR: | |
150 | return LTTNG_LIVE_ITERATOR_STATUS_ERROR; | |
151 | } | |
152 | ||
153 | bt_common_abort(); | |
f79c2d7a FD |
154 | } |
155 | ||
4164020e SM |
156 | static inline enum ctf_msg_iter_medium_status |
157 | viewer_status_to_ctf_msg_iter_medium_status(enum lttng_live_viewer_status viewer_status) | |
f79c2d7a | 158 | { |
4164020e SM |
159 | switch (viewer_status) { |
160 | case LTTNG_LIVE_VIEWER_STATUS_OK: | |
161 | return CTF_MSG_ITER_MEDIUM_STATUS_OK; | |
162 | case LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED: | |
163 | return CTF_MSG_ITER_MEDIUM_STATUS_AGAIN; | |
164 | case LTTNG_LIVE_VIEWER_STATUS_ERROR: | |
165 | return CTF_MSG_ITER_MEDIUM_STATUS_ERROR; | |
166 | } | |
167 | ||
168 | bt_common_abort(); | |
f79c2d7a FD |
169 | } |
170 | ||
4164020e | 171 | static inline void viewer_connection_close_socket(struct live_viewer_connection *viewer_connection) |
b197ca37 | 172 | { |
4164020e SM |
173 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; |
174 | bt_self_component *self_comp = viewer_connection->self_comp; | |
175 | int ret = bt_socket_close(viewer_connection->control_sock); | |
176 | if (ret == -1) { | |
177 | BT_COMP_OR_COMP_CLASS_LOGW_ERRNO(self_comp, self_comp_class, | |
178 | "Error closing viewer connection socket: ", "."); | |
179 | } | |
180 | ||
181 | viewer_connection->control_sock = BT_INVALID_SOCKET; | |
b197ca37 FD |
182 | } |
183 | ||
f79c2d7a FD |
184 | /* |
185 | * This function receives a message from the Relay daemon. | |
186 | * If it received the entire message, it returns _OK, | |
187 | * If it's interrupted, it returns _INTERRUPTED, | |
188 | * otherwise, it returns _ERROR. | |
189 | */ | |
4164020e SM |
190 | static enum lttng_live_viewer_status |
191 | lttng_live_recv(struct live_viewer_connection *viewer_connection, void *buf, size_t len) | |
7cdc2bab | 192 | { |
4164020e SM |
193 | ssize_t received; |
194 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
195 | bt_self_component *self_comp = viewer_connection->self_comp; | |
196 | size_t total_received = 0, to_receive = len; | |
197 | struct lttng_live_msg_iter *lttng_live_msg_iter = viewer_connection->lttng_live_msg_iter; | |
198 | enum lttng_live_viewer_status status; | |
199 | BT_SOCKET sock = viewer_connection->control_sock; | |
200 | ||
201 | /* | |
202 | * Receive a message from the Relay. | |
203 | */ | |
204 | do { | |
205 | received = bt_socket_recv(sock, (char *) buf + total_received, to_receive, 0); | |
206 | if (received == BT_SOCKET_ERROR) { | |
207 | if (bt_socket_interrupted()) { | |
208 | if (lttng_live_graph_is_canceled(lttng_live_msg_iter)) { | |
209 | /* | |
210 | * This interruption was due to a | |
211 | * SIGINT and the graph is being torn | |
212 | * down. | |
213 | */ | |
214 | status = LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED; | |
215 | lttng_live_msg_iter->was_interrupted = true; | |
216 | goto end; | |
217 | } else { | |
218 | /* | |
219 | * A signal was received, but the graph | |
220 | * is not being torn down. Carry on. | |
221 | */ | |
222 | continue; | |
223 | } | |
224 | } else { | |
225 | /* | |
226 | * For any other types of socket error, close | |
227 | * the socket and return an error. | |
228 | */ | |
229 | LTTNG_LIVE_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE_ERRNO( | |
230 | self_comp, self_comp_class, "Error receiving from Relay", "."); | |
231 | ||
232 | viewer_connection_close_socket(viewer_connection); | |
233 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
234 | goto end; | |
235 | } | |
236 | } else if (received == 0) { | |
237 | /* | |
238 | * The recv() call returned 0. This means the | |
239 | * connection was orderly shutdown from the other peer. | |
240 | * If that happens when we are trying to receive | |
241 | * a message from it, it means something when wrong. | |
242 | * Close the socket and return an error. | |
243 | */ | |
244 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
245 | "Remote side has closed connection"); | |
246 | viewer_connection_close_socket(viewer_connection); | |
247 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
248 | goto end; | |
249 | } | |
250 | ||
251 | BT_ASSERT(received <= to_receive); | |
252 | total_received += received; | |
253 | to_receive -= received; | |
254 | ||
255 | } while (to_receive > 0); | |
256 | ||
257 | BT_ASSERT(total_received == len); | |
258 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
f79c2d7a FD |
259 | |
260 | end: | |
4164020e | 261 | return status; |
7cdc2bab MD |
262 | } |
263 | ||
f79c2d7a FD |
264 | /* |
265 | * This function sends a message to the Relay daemon. | |
266 | * If it send the message, it returns _OK, | |
267 | * If it's interrupted, it returns _INTERRUPTED, | |
268 | * otherwise, it returns _ERROR. | |
269 | */ | |
4164020e SM |
270 | static enum lttng_live_viewer_status |
271 | lttng_live_send(struct live_viewer_connection *viewer_connection, const void *buf, size_t len) | |
7cdc2bab | 272 | { |
4164020e SM |
273 | enum lttng_live_viewer_status status; |
274 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
275 | bt_self_component *self_comp = viewer_connection->self_comp; | |
276 | struct lttng_live_msg_iter *lttng_live_msg_iter = viewer_connection->lttng_live_msg_iter; | |
277 | BT_SOCKET sock = viewer_connection->control_sock; | |
278 | size_t to_send = len; | |
279 | ssize_t total_sent = 0; | |
280 | ||
281 | do { | |
282 | ssize_t sent = bt_socket_send_nosigpipe(sock, (char *) buf + total_sent, to_send); | |
283 | if (sent == BT_SOCKET_ERROR) { | |
284 | if (bt_socket_interrupted()) { | |
285 | if (lttng_live_graph_is_canceled(lttng_live_msg_iter)) { | |
286 | /* | |
287 | * This interruption was a SIGINT and | |
288 | * the graph is being teared down. | |
289 | */ | |
290 | status = LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED; | |
291 | lttng_live_msg_iter->was_interrupted = true; | |
292 | goto end; | |
293 | } else { | |
294 | /* | |
295 | * A signal was received, but the graph | |
296 | * is not being teared down. Carry on. | |
297 | */ | |
298 | continue; | |
299 | } | |
300 | } else { | |
301 | /* | |
302 | * For any other types of socket error, close | |
303 | * the socket and return an error. | |
304 | */ | |
305 | LTTNG_LIVE_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE_ERRNO( | |
306 | self_comp, self_comp_class, "Error sending to Relay", "."); | |
307 | ||
308 | viewer_connection_close_socket(viewer_connection); | |
309 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
310 | goto end; | |
311 | } | |
312 | } | |
313 | ||
314 | BT_ASSERT(sent <= to_send); | |
315 | total_sent += sent; | |
316 | to_send -= sent; | |
317 | ||
318 | } while (to_send > 0); | |
319 | ||
320 | BT_ASSERT(total_sent == len); | |
321 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
f79c2d7a FD |
322 | |
323 | end: | |
4164020e | 324 | return status; |
7cdc2bab MD |
325 | } |
326 | ||
4164020e | 327 | static int parse_url(struct live_viewer_connection *viewer_connection) |
7cdc2bab | 328 | { |
4164020e SM |
329 | char error_buf[256] = {0}; |
330 | bt_self_component *self_comp = viewer_connection->self_comp; | |
331 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
dd420a9b | 332 | struct bt_common_lttng_live_url_parts lttng_live_url_parts = {}; |
4164020e SM |
333 | int ret = -1; |
334 | const char *path = viewer_connection->url->str; | |
335 | ||
336 | if (!path) { | |
337 | goto end; | |
338 | } | |
339 | ||
340 | lttng_live_url_parts = bt_common_parse_lttng_live_url(path, error_buf, sizeof(error_buf)); | |
341 | if (!lttng_live_url_parts.proto) { | |
342 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
343 | "Invalid LTTng live URL format: %s", error_buf); | |
344 | goto end; | |
345 | } | |
346 | viewer_connection->proto = lttng_live_url_parts.proto; | |
347 | lttng_live_url_parts.proto = NULL; | |
348 | ||
349 | viewer_connection->relay_hostname = lttng_live_url_parts.hostname; | |
350 | lttng_live_url_parts.hostname = NULL; | |
351 | ||
352 | if (lttng_live_url_parts.port >= 0) { | |
353 | viewer_connection->port = lttng_live_url_parts.port; | |
354 | } else { | |
355 | viewer_connection->port = LTTNG_DEFAULT_NETWORK_VIEWER_PORT; | |
356 | } | |
357 | ||
358 | viewer_connection->target_hostname = lttng_live_url_parts.target_hostname; | |
359 | lttng_live_url_parts.target_hostname = NULL; | |
360 | ||
361 | if (lttng_live_url_parts.session_name) { | |
362 | viewer_connection->session_name = lttng_live_url_parts.session_name; | |
363 | lttng_live_url_parts.session_name = NULL; | |
364 | } | |
365 | ||
366 | ret = 0; | |
7cdc2bab MD |
367 | |
368 | end: | |
4164020e SM |
369 | bt_common_destroy_lttng_live_url_parts(<tng_live_url_parts); |
370 | return ret; | |
7cdc2bab MD |
371 | } |
372 | ||
4164020e SM |
373 | static enum lttng_live_viewer_status |
374 | lttng_live_handshake(struct live_viewer_connection *viewer_connection) | |
7cdc2bab | 375 | { |
4164020e SM |
376 | struct lttng_viewer_cmd cmd; |
377 | struct lttng_viewer_connect connect; | |
378 | enum lttng_live_viewer_status status; | |
379 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
380 | bt_self_component *self_comp = viewer_connection->self_comp; | |
381 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(connect); | |
382 | char cmd_buf[cmd_buf_len]; | |
383 | ||
384 | BT_COMP_OR_COMP_CLASS_LOGD( | |
385 | self_comp, self_comp_class, | |
386 | "Handshaking with the relay daemon: cmd=%s, major-version=%u, minor-version=%u", | |
387 | lttng_viewer_command_string(LTTNG_VIEWER_CONNECT), LTTNG_LIVE_MAJOR, LTTNG_LIVE_MINOR); | |
388 | ||
389 | cmd.cmd = htobe32(LTTNG_VIEWER_CONNECT); | |
390 | cmd.data_size = htobe64((uint64_t) sizeof(connect)); | |
391 | cmd.cmd_version = htobe32(0); | |
392 | ||
393 | connect.viewer_session_id = -1ULL; /* will be set on recv */ | |
394 | connect.major = htobe32(LTTNG_LIVE_MAJOR); | |
395 | connect.minor = htobe32(LTTNG_LIVE_MINOR); | |
396 | connect.type = htobe32(LTTNG_VIEWER_CLIENT_COMMAND); | |
397 | ||
398 | /* | |
399 | * Merge the cmd and connection request to prevent a write-write | |
400 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
401 | * second write to be performed quickly in presence of Nagle's algorithm | |
402 | */ | |
403 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
404 | memcpy(cmd_buf + sizeof(cmd), &connect, sizeof(connect)); | |
405 | ||
406 | status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); | |
407 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
408 | viewer_handle_send_status(self_comp, self_comp_class, status, "viewer connect command"); | |
409 | goto end; | |
410 | } | |
411 | ||
412 | status = lttng_live_recv(viewer_connection, &connect, sizeof(connect)); | |
413 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
414 | viewer_handle_recv_status(self_comp, self_comp_class, status, "viewer connect reply"); | |
415 | goto end; | |
416 | } | |
417 | ||
418 | BT_COMP_OR_COMP_CLASS_LOGI(self_comp, self_comp_class, "Received viewer session ID : %" PRIu64, | |
419 | (uint64_t) be64toh(connect.viewer_session_id)); | |
420 | BT_COMP_OR_COMP_CLASS_LOGI(self_comp, self_comp_class, "Relayd version : %u.%u", | |
421 | be32toh(connect.major), be32toh(connect.minor)); | |
422 | ||
423 | if (LTTNG_LIVE_MAJOR != be32toh(connect.major)) { | |
424 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
425 | "Incompatible lttng-relayd protocol"); | |
426 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
427 | goto end; | |
428 | } | |
429 | /* Use the smallest protocol version implemented. */ | |
430 | if (LTTNG_LIVE_MINOR > be32toh(connect.minor)) { | |
431 | viewer_connection->minor = be32toh(connect.minor); | |
432 | } else { | |
433 | viewer_connection->minor = LTTNG_LIVE_MINOR; | |
434 | } | |
435 | viewer_connection->major = LTTNG_LIVE_MAJOR; | |
436 | ||
437 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
438 | ||
439 | goto end; | |
f79c2d7a FD |
440 | |
441 | end: | |
4164020e | 442 | return status; |
7cdc2bab MD |
443 | } |
444 | ||
4164020e SM |
445 | static enum lttng_live_viewer_status |
446 | lttng_live_connect_viewer(struct live_viewer_connection *viewer_connection) | |
7cdc2bab | 447 | { |
4164020e SM |
448 | struct hostent *host; |
449 | struct sockaddr_in server_addr; | |
450 | enum lttng_live_viewer_status status; | |
451 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
452 | bt_self_component *self_comp = viewer_connection->self_comp; | |
453 | ||
454 | if (parse_url(viewer_connection)) { | |
455 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, "Failed to parse URL"); | |
456 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
457 | goto error; | |
458 | } | |
459 | ||
460 | BT_COMP_OR_COMP_CLASS_LOGD( | |
461 | self_comp, self_comp_class, | |
462 | "Connecting to hostname : %s, port : %d, " | |
463 | "target hostname : %s, session name : %s, proto : %s", | |
464 | viewer_connection->relay_hostname->str, viewer_connection->port, | |
465 | !viewer_connection->target_hostname ? "<none>" : viewer_connection->target_hostname->str, | |
466 | !viewer_connection->session_name ? "<none>" : viewer_connection->session_name->str, | |
467 | viewer_connection->proto->str); | |
468 | ||
469 | host = gethostbyname(viewer_connection->relay_hostname->str); | |
470 | if (!host) { | |
471 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
472 | "Cannot lookup hostname: hostname=\"%s\"", | |
473 | viewer_connection->relay_hostname->str); | |
474 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
475 | goto error; | |
476 | } | |
477 | ||
478 | if ((viewer_connection->control_sock = socket(AF_INET, SOCK_STREAM, 0)) == BT_INVALID_SOCKET) { | |
479 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
480 | "Socket creation failed: %s", bt_socket_errormsg()); | |
481 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
482 | goto error; | |
483 | } | |
484 | ||
485 | server_addr.sin_family = AF_INET; | |
486 | server_addr.sin_port = htons(viewer_connection->port); | |
487 | server_addr.sin_addr = *((struct in_addr *) host->h_addr); | |
488 | memset(&(server_addr.sin_zero), 0, 8); | |
489 | ||
490 | if (connect(viewer_connection->control_sock, (struct sockaddr *) &server_addr, | |
491 | sizeof(struct sockaddr)) == BT_SOCKET_ERROR) { | |
492 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, "Connection failed: %s", | |
493 | bt_socket_errormsg()); | |
494 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
495 | goto error; | |
496 | } | |
497 | ||
498 | status = lttng_live_handshake(viewer_connection); | |
499 | ||
500 | /* | |
501 | * Only print error and append cause in case of error. not in case of | |
502 | * interruption. | |
503 | */ | |
504 | if (status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
505 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
506 | "Viewer handshake failed"); | |
507 | goto error; | |
508 | } else if (status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { | |
509 | goto end; | |
510 | } | |
511 | ||
512 | goto end; | |
7cdc2bab MD |
513 | |
514 | error: | |
4164020e SM |
515 | if (viewer_connection->control_sock != BT_INVALID_SOCKET) { |
516 | if (bt_socket_close(viewer_connection->control_sock) == BT_SOCKET_ERROR) { | |
517 | BT_COMP_OR_COMP_CLASS_LOGW(self_comp, self_comp_class, "Error closing socket: %s.", | |
518 | bt_socket_errormsg()); | |
519 | } | |
520 | } | |
521 | viewer_connection->control_sock = BT_INVALID_SOCKET; | |
f79c2d7a | 522 | end: |
4164020e | 523 | return status; |
7cdc2bab MD |
524 | } |
525 | ||
4164020e | 526 | static void lttng_live_disconnect_viewer(struct live_viewer_connection *viewer_connection) |
7cdc2bab | 527 | { |
4164020e SM |
528 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; |
529 | bt_self_component *self_comp = viewer_connection->self_comp; | |
530 | ||
531 | if (viewer_connection->control_sock == BT_INVALID_SOCKET) { | |
532 | return; | |
533 | } | |
534 | if (bt_socket_close(viewer_connection->control_sock) == BT_SOCKET_ERROR) { | |
535 | BT_COMP_OR_COMP_CLASS_LOGW(self_comp, self_comp_class, "Error closing socket: %s", | |
536 | bt_socket_errormsg()); | |
537 | viewer_connection->control_sock = BT_INVALID_SOCKET; | |
538 | } | |
7cdc2bab MD |
539 | } |
540 | ||
4164020e SM |
541 | static int list_update_session(bt_value *results, const struct lttng_viewer_session *session, |
542 | bool *_found, struct live_viewer_connection *viewer_connection) | |
7cdc2bab | 543 | { |
4164020e SM |
544 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; |
545 | bt_self_component *self_comp = viewer_connection->self_comp; | |
546 | int ret = 0; | |
547 | uint64_t i, len; | |
548 | bt_value *map = NULL; | |
549 | bt_value *hostname = NULL; | |
550 | bt_value *session_name = NULL; | |
551 | bt_value *btval = NULL; | |
552 | bool found = false; | |
553 | ||
554 | len = bt_value_array_get_length(results); | |
555 | for (i = 0; i < len; i++) { | |
556 | const char *hostname_str = NULL; | |
557 | const char *session_name_str = NULL; | |
558 | ||
559 | map = bt_value_array_borrow_element_by_index(results, i); | |
560 | hostname = bt_value_map_borrow_entry_value(map, "target-hostname"); | |
561 | if (!hostname) { | |
562 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
563 | "Error borrowing \"target-hostname\" entry."); | |
564 | ret = -1; | |
565 | goto end; | |
566 | } | |
567 | session_name = bt_value_map_borrow_entry_value(map, "session-name"); | |
568 | if (!session_name) { | |
569 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
570 | "Error borrowing \"session-name\" entry."); | |
571 | ret = -1; | |
572 | goto end; | |
573 | } | |
574 | hostname_str = bt_value_string_get(hostname); | |
575 | session_name_str = bt_value_string_get(session_name); | |
576 | ||
577 | if (strcmp(session->hostname, hostname_str) == 0 && | |
578 | strcmp(session->session_name, session_name_str) == 0) { | |
579 | int64_t val; | |
580 | uint32_t streams = be32toh(session->streams); | |
581 | uint32_t clients = be32toh(session->clients); | |
582 | ||
583 | found = true; | |
584 | ||
585 | btval = bt_value_map_borrow_entry_value(map, "stream-count"); | |
586 | if (!btval) { | |
587 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
588 | "Error borrowing \"stream-count\" entry."); | |
589 | ret = -1; | |
590 | goto end; | |
591 | } | |
592 | val = bt_value_integer_unsigned_get(btval); | |
593 | /* sum */ | |
594 | val += streams; | |
595 | bt_value_integer_unsigned_set(btval, val); | |
596 | ||
597 | btval = bt_value_map_borrow_entry_value(map, "client-count"); | |
598 | if (!btval) { | |
599 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
600 | "Error borrowing \"client-count\" entry."); | |
601 | ret = -1; | |
602 | goto end; | |
603 | } | |
604 | val = bt_value_integer_unsigned_get(btval); | |
605 | /* max */ | |
606 | val = bt_max_t(int64_t, clients, val); | |
607 | bt_value_integer_unsigned_set(btval, val); | |
608 | } | |
609 | ||
610 | if (found) { | |
611 | break; | |
612 | } | |
613 | } | |
7cdc2bab | 614 | end: |
4164020e SM |
615 | *_found = found; |
616 | return ret; | |
7cdc2bab MD |
617 | } |
618 | ||
4164020e SM |
619 | static int list_append_session(bt_value *results, GString *base_url, |
620 | const struct lttng_viewer_session *session, | |
621 | struct live_viewer_connection *viewer_connection) | |
7cdc2bab | 622 | { |
4164020e SM |
623 | int ret = 0; |
624 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
625 | bt_value_map_insert_entry_status insert_status; | |
626 | bt_value_array_append_element_status append_status; | |
627 | bt_value *map = NULL; | |
628 | GString *url = NULL; | |
629 | bool found = false; | |
630 | ||
631 | /* | |
632 | * If the session already exists, add the stream count to it, | |
633 | * and do max of client counts. | |
634 | */ | |
635 | ret = list_update_session(results, session, &found, viewer_connection); | |
636 | if (ret || found) { | |
637 | goto end; | |
638 | } | |
639 | ||
640 | map = bt_value_map_create(); | |
641 | if (!map) { | |
642 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error creating map value."); | |
643 | ret = -1; | |
644 | goto end; | |
645 | } | |
646 | ||
647 | if (base_url->len < 1) { | |
648 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error: base_url length smaller than 1."); | |
649 | ret = -1; | |
650 | goto end; | |
651 | } | |
652 | /* | |
653 | * key = "url", | |
654 | * value = <string>, | |
655 | */ | |
656 | url = g_string_new(base_url->str); | |
657 | g_string_append(url, "/host/"); | |
658 | g_string_append(url, session->hostname); | |
659 | g_string_append_c(url, '/'); | |
660 | g_string_append(url, session->session_name); | |
661 | ||
662 | insert_status = bt_value_map_insert_string_entry(map, "url", url->str); | |
663 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
664 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error inserting \"url\" entry."); | |
665 | ret = -1; | |
666 | goto end; | |
667 | } | |
668 | ||
669 | /* | |
670 | * key = "target-hostname", | |
671 | * value = <string>, | |
672 | */ | |
673 | insert_status = bt_value_map_insert_string_entry(map, "target-hostname", session->hostname); | |
674 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
675 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, | |
676 | "Error inserting \"target-hostname\" entry."); | |
677 | ret = -1; | |
678 | goto end; | |
679 | } | |
680 | ||
681 | /* | |
682 | * key = "session-name", | |
683 | * value = <string>, | |
684 | */ | |
685 | insert_status = bt_value_map_insert_string_entry(map, "session-name", session->session_name); | |
686 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
687 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error inserting \"session-name\" entry."); | |
688 | ret = -1; | |
689 | goto end; | |
690 | } | |
691 | ||
692 | /* | |
693 | * key = "timer-us", | |
694 | * value = <integer>, | |
695 | */ | |
696 | { | |
697 | uint32_t live_timer = be32toh(session->live_timer); | |
698 | ||
699 | insert_status = bt_value_map_insert_unsigned_integer_entry(map, "timer-us", live_timer); | |
700 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
701 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error inserting \"timer-us\" entry."); | |
702 | ret = -1; | |
703 | goto end; | |
704 | } | |
705 | } | |
706 | ||
707 | /* | |
708 | * key = "stream-count", | |
709 | * value = <integer>, | |
710 | */ | |
711 | { | |
712 | uint32_t streams = be32toh(session->streams); | |
713 | ||
714 | insert_status = bt_value_map_insert_unsigned_integer_entry(map, "stream-count", streams); | |
715 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
716 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, | |
717 | "Error inserting \"stream-count\" entry."); | |
718 | ret = -1; | |
719 | goto end; | |
720 | } | |
721 | } | |
722 | ||
723 | /* | |
724 | * key = "client-count", | |
725 | * value = <integer>, | |
726 | */ | |
727 | { | |
728 | uint32_t clients = be32toh(session->clients); | |
729 | ||
730 | insert_status = bt_value_map_insert_unsigned_integer_entry(map, "client-count", clients); | |
731 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
732 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, | |
733 | "Error inserting \"client-count\" entry."); | |
734 | ret = -1; | |
735 | goto end; | |
736 | } | |
737 | } | |
738 | ||
739 | append_status = bt_value_array_append_element(results, map); | |
740 | if (append_status != BT_VALUE_ARRAY_APPEND_ELEMENT_STATUS_OK) { | |
741 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error appending map to results."); | |
742 | ret = -1; | |
743 | } | |
14f28187 | 744 | |
7cdc2bab | 745 | end: |
4164020e SM |
746 | if (url) { |
747 | g_string_free(url, true); | |
748 | } | |
749 | BT_VALUE_PUT_REF_AND_RESET(map); | |
750 | return ret; | |
7cdc2bab MD |
751 | } |
752 | ||
753 | /* | |
754 | * Data structure returned: | |
755 | * | |
756 | * { | |
757 | * <array> = { | |
758 | * [n] = { | |
759 | * <map> = { | |
760 | * { | |
761 | * key = "url", | |
762 | * value = <string>, | |
763 | * }, | |
764 | * { | |
765 | * key = "target-hostname", | |
766 | * value = <string>, | |
767 | * }, | |
768 | * { | |
769 | * key = "session-name", | |
770 | * value = <string>, | |
771 | * }, | |
772 | * { | |
773 | * key = "timer-us", | |
774 | * value = <integer>, | |
775 | * }, | |
776 | * { | |
777 | * key = "stream-count", | |
778 | * value = <integer>, | |
779 | * }, | |
780 | * { | |
781 | * key = "client-count", | |
782 | * value = <integer>, | |
783 | * }, | |
784 | * }, | |
785 | * } | |
786 | * } | |
787 | */ | |
788 | ||
4164020e SM |
789 | bt_component_class_query_method_status |
790 | live_viewer_connection_list_sessions(struct live_viewer_connection *viewer_connection, | |
791 | const bt_value **user_result) | |
7cdc2bab | 792 | { |
4164020e SM |
793 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; |
794 | bt_component_class_query_method_status status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_OK; | |
795 | bt_value *result = NULL; | |
796 | enum lttng_live_viewer_status viewer_status; | |
797 | struct lttng_viewer_cmd cmd; | |
798 | struct lttng_viewer_list_sessions list; | |
799 | uint32_t i, sessions_count; | |
800 | ||
801 | result = bt_value_array_create(); | |
802 | if (!result) { | |
803 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error creating array"); | |
804 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_MEMORY_ERROR; | |
805 | goto error; | |
806 | } | |
807 | ||
808 | BT_LOGD("Requesting list of sessions: cmd=%s", | |
809 | lttng_viewer_command_string(LTTNG_VIEWER_LIST_SESSIONS)); | |
810 | ||
811 | cmd.cmd = htobe32(LTTNG_VIEWER_LIST_SESSIONS); | |
812 | cmd.data_size = htobe64((uint64_t) 0); | |
813 | cmd.cmd_version = htobe32(0); | |
814 | ||
815 | viewer_status = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); | |
816 | if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
817 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error sending list sessions command"); | |
818 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; | |
819 | goto error; | |
820 | } else if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { | |
821 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_AGAIN; | |
822 | goto error; | |
823 | } | |
824 | ||
825 | viewer_status = lttng_live_recv(viewer_connection, &list, sizeof(list)); | |
826 | if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
827 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error receiving session list"); | |
828 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; | |
829 | goto error; | |
830 | } else if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { | |
831 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_AGAIN; | |
832 | goto error; | |
833 | } | |
834 | ||
835 | sessions_count = be32toh(list.sessions_count); | |
836 | for (i = 0; i < sessions_count; i++) { | |
837 | struct lttng_viewer_session lsession; | |
838 | ||
839 | viewer_status = lttng_live_recv(viewer_connection, &lsession, sizeof(lsession)); | |
840 | if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
841 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error receiving session:"); | |
842 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; | |
843 | goto error; | |
844 | } else if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { | |
845 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_AGAIN; | |
846 | goto error; | |
847 | } | |
848 | ||
849 | lsession.hostname[LTTNG_VIEWER_HOST_NAME_MAX - 1] = '\0'; | |
850 | lsession.session_name[LTTNG_VIEWER_NAME_MAX - 1] = '\0'; | |
851 | if (list_append_session(result, viewer_connection->url, &lsession, viewer_connection)) { | |
852 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error appending session"); | |
853 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; | |
854 | goto error; | |
855 | } | |
856 | } | |
857 | ||
858 | *user_result = result; | |
859 | goto end; | |
7cdc2bab | 860 | error: |
4164020e | 861 | BT_VALUE_PUT_REF_AND_RESET(result); |
7cdc2bab | 862 | end: |
4164020e | 863 | return status; |
7cdc2bab MD |
864 | } |
865 | ||
4164020e SM |
866 | static enum lttng_live_viewer_status |
867 | lttng_live_query_session_ids(struct lttng_live_msg_iter *lttng_live_msg_iter) | |
7cdc2bab | 868 | { |
4164020e SM |
869 | struct lttng_viewer_cmd cmd; |
870 | struct lttng_viewer_list_sessions list; | |
871 | struct lttng_viewer_session lsession; | |
872 | uint32_t i, sessions_count; | |
873 | uint64_t session_id; | |
874 | enum lttng_live_viewer_status status; | |
875 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
876 | bt_self_component *self_comp = viewer_connection->self_comp; | |
877 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
878 | ||
879 | BT_COMP_LOGD("Asking the relay daemon for the list of sessions: cmd=%s", | |
880 | lttng_viewer_command_string(LTTNG_VIEWER_LIST_SESSIONS)); | |
881 | ||
882 | cmd.cmd = htobe32(LTTNG_VIEWER_LIST_SESSIONS); | |
883 | cmd.data_size = htobe64((uint64_t) 0); | |
884 | cmd.cmd_version = htobe32(0); | |
885 | ||
886 | status = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); | |
887 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
888 | viewer_handle_send_status(self_comp, self_comp_class, status, "list sessions command"); | |
889 | goto end; | |
890 | } | |
891 | ||
892 | status = lttng_live_recv(viewer_connection, &list, sizeof(list)); | |
893 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
894 | viewer_handle_recv_status(self_comp, self_comp_class, status, "session list reply"); | |
895 | goto end; | |
896 | } | |
897 | ||
898 | sessions_count = be32toh(list.sessions_count); | |
899 | for (i = 0; i < sessions_count; i++) { | |
900 | status = lttng_live_recv(viewer_connection, &lsession, sizeof(lsession)); | |
901 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
902 | viewer_handle_recv_status(self_comp, self_comp_class, status, "session reply"); | |
903 | goto end; | |
904 | } | |
905 | lsession.hostname[LTTNG_VIEWER_HOST_NAME_MAX - 1] = '\0'; | |
906 | lsession.session_name[LTTNG_VIEWER_NAME_MAX - 1] = '\0'; | |
907 | session_id = be64toh(lsession.id); | |
908 | ||
909 | BT_COMP_LOGI("Adding session to internal list: " | |
910 | "session-id=%" PRIu64 ", hostname=\"%s\", session-name=\"%s\"", | |
911 | session_id, lsession.hostname, lsession.session_name); | |
912 | ||
913 | if ((strncmp(lsession.session_name, viewer_connection->session_name->str, | |
914 | LTTNG_VIEWER_NAME_MAX) == 0) && | |
915 | (strncmp(lsession.hostname, viewer_connection->target_hostname->str, | |
916 | LTTNG_VIEWER_HOST_NAME_MAX) == 0)) { | |
917 | if (lttng_live_add_session(lttng_live_msg_iter, session_id, lsession.hostname, | |
918 | lsession.session_name)) { | |
919 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Failed to add live session"); | |
920 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
921 | goto end; | |
922 | } | |
923 | } | |
924 | } | |
925 | ||
926 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
7cdc2bab | 927 | |
f79c2d7a | 928 | end: |
4164020e | 929 | return status; |
7cdc2bab MD |
930 | } |
931 | ||
4164020e SM |
932 | enum lttng_live_viewer_status |
933 | lttng_live_create_viewer_session(struct lttng_live_msg_iter *lttng_live_msg_iter) | |
7cdc2bab | 934 | { |
4164020e SM |
935 | struct lttng_viewer_cmd cmd; |
936 | struct lttng_viewer_create_session_response resp; | |
937 | enum lttng_live_viewer_status status; | |
938 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
939 | bt_self_component *self_comp = viewer_connection->self_comp; | |
940 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
941 | ||
942 | BT_COMP_OR_COMP_CLASS_LOGD(self_comp, self_comp_class, "Creating a viewer session: cmd=%s", | |
943 | lttng_viewer_command_string(LTTNG_VIEWER_CREATE_SESSION)); | |
944 | ||
945 | cmd.cmd = htobe32(LTTNG_VIEWER_CREATE_SESSION); | |
946 | cmd.data_size = htobe64((uint64_t) 0); | |
947 | cmd.cmd_version = htobe32(0); | |
948 | ||
949 | status = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); | |
950 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
951 | viewer_handle_send_status(self_comp, self_comp_class, status, "create session command"); | |
952 | goto end; | |
953 | } | |
954 | ||
955 | status = lttng_live_recv(viewer_connection, &resp, sizeof(resp)); | |
956 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
957 | viewer_handle_recv_status(self_comp, self_comp_class, status, "create session reply"); | |
958 | goto end; | |
959 | } | |
960 | ||
961 | if (be32toh(resp.status) != LTTNG_VIEWER_CREATE_SESSION_OK) { | |
962 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Error creating viewer session"); | |
963 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
964 | goto end; | |
965 | } | |
966 | ||
967 | status = lttng_live_query_session_ids(lttng_live_msg_iter); | |
968 | if (status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
969 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Failed to query live viewer session ids"); | |
970 | goto end; | |
971 | } else if (status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { | |
972 | goto end; | |
973 | } | |
7cdc2bab | 974 | |
f79c2d7a | 975 | end: |
4164020e | 976 | return status; |
7cdc2bab MD |
977 | } |
978 | ||
4164020e SM |
979 | static enum lttng_live_viewer_status receive_streams(struct lttng_live_session *session, |
980 | uint32_t stream_count, | |
981 | bt_self_message_iterator *self_msg_iter) | |
7cdc2bab | 982 | { |
4164020e SM |
983 | uint32_t i; |
984 | struct lttng_live_msg_iter *lttng_live_msg_iter = session->lttng_live_msg_iter; | |
985 | enum lttng_live_viewer_status status; | |
986 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
987 | bt_self_component *self_comp = viewer_connection->self_comp; | |
988 | ||
989 | BT_COMP_LOGI("Getting %" PRIu32 " new streams", stream_count); | |
990 | for (i = 0; i < stream_count; i++) { | |
991 | struct lttng_viewer_stream stream; | |
992 | struct lttng_live_stream_iterator *live_stream; | |
993 | uint64_t stream_id; | |
994 | uint64_t ctf_trace_id; | |
995 | ||
996 | status = lttng_live_recv(viewer_connection, &stream, sizeof(stream)); | |
997 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
998 | viewer_handle_recv_status(self_comp, NULL, status, "stream reply"); | |
999 | goto end; | |
1000 | } | |
1001 | stream.path_name[LTTNG_VIEWER_PATH_MAX - 1] = '\0'; | |
1002 | stream.channel_name[LTTNG_VIEWER_NAME_MAX - 1] = '\0'; | |
1003 | stream_id = be64toh(stream.id); | |
1004 | ctf_trace_id = be64toh(stream.ctf_trace_id); | |
1005 | ||
1006 | if (stream.metadata_flag) { | |
1007 | BT_COMP_LOGI(" metadata stream %" PRIu64 " : %s/%s", stream_id, stream.path_name, | |
1008 | stream.channel_name); | |
44bd6303 | 1009 | if (lttng_live_metadata_create_stream(session, ctf_trace_id, stream_id)) { |
4164020e SM |
1010 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Error creating metadata stream"); |
1011 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1012 | goto end; | |
1013 | } | |
1014 | session->lazy_stream_msg_init = true; | |
1015 | } else { | |
1016 | BT_COMP_LOGI(" stream %" PRIu64 " : %s/%s", stream_id, stream.path_name, | |
1017 | stream.channel_name); | |
1018 | live_stream = | |
1019 | lttng_live_stream_iterator_create(session, ctf_trace_id, stream_id, self_msg_iter); | |
1020 | if (!live_stream) { | |
1021 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Error creating stream"); | |
1022 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1023 | goto end; | |
1024 | } | |
1025 | } | |
1026 | } | |
1027 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
7cdc2bab | 1028 | |
f79c2d7a | 1029 | end: |
4164020e | 1030 | return status; |
7cdc2bab MD |
1031 | } |
1032 | ||
4164020e SM |
1033 | enum lttng_live_viewer_status lttng_live_session_attach(struct lttng_live_session *session, |
1034 | bt_self_message_iterator *self_msg_iter) | |
7cdc2bab | 1035 | { |
4164020e SM |
1036 | struct lttng_viewer_cmd cmd; |
1037 | enum lttng_live_viewer_status status; | |
1038 | struct lttng_viewer_attach_session_request rq; | |
1039 | struct lttng_viewer_attach_session_response rp; | |
1040 | struct lttng_live_msg_iter *lttng_live_msg_iter = session->lttng_live_msg_iter; | |
1041 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
1042 | bt_self_component *self_comp = viewer_connection->self_comp; | |
1043 | uint64_t session_id = session->id; | |
1044 | uint32_t streams_count; | |
1045 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); | |
1046 | char cmd_buf[cmd_buf_len]; | |
1047 | ||
1048 | BT_COMP_LOGD("Attaching to session: cmd=%s, session-id=%" PRIu64 ", seek=%s", | |
1049 | lttng_viewer_command_string(LTTNG_VIEWER_ATTACH_SESSION), session_id, | |
1050 | lttng_viewer_seek_string(LTTNG_VIEWER_SEEK_LAST)); | |
1051 | ||
1052 | cmd.cmd = htobe32(LTTNG_VIEWER_ATTACH_SESSION); | |
1053 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1054 | cmd.cmd_version = htobe32(0); | |
1055 | ||
1056 | memset(&rq, 0, sizeof(rq)); | |
1057 | rq.session_id = htobe64(session_id); | |
1058 | // TODO: add cmd line parameter to select seek beginning | |
1059 | // rq.seek = htobe32(LTTNG_VIEWER_SEEK_BEGINNING); | |
1060 | rq.seek = htobe32(LTTNG_VIEWER_SEEK_LAST); | |
1061 | ||
1062 | /* | |
1063 | * Merge the cmd and connection request to prevent a write-write | |
1064 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1065 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1066 | */ | |
1067 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1068 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
1069 | status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); | |
1070 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1071 | viewer_handle_send_status(self_comp, NULL, status, "attach session command"); | |
1072 | goto end; | |
1073 | } | |
1074 | ||
1075 | status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); | |
1076 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1077 | viewer_handle_recv_status(self_comp, NULL, status, "attach session reply"); | |
1078 | goto end; | |
1079 | } | |
1080 | ||
1081 | streams_count = be32toh(rp.streams_count); | |
1082 | switch (be32toh(rp.status)) { | |
1083 | case LTTNG_VIEWER_ATTACH_OK: | |
1084 | break; | |
1085 | case LTTNG_VIEWER_ATTACH_UNK: | |
1086 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Session id %" PRIu64 " is unknown", session_id); | |
1087 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1088 | goto end; | |
1089 | case LTTNG_VIEWER_ATTACH_ALREADY: | |
1090 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "There is already a viewer attached to this session"); | |
1091 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1092 | goto end; | |
1093 | case LTTNG_VIEWER_ATTACH_NOT_LIVE: | |
1094 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Not a live session"); | |
1095 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1096 | goto end; | |
1097 | case LTTNG_VIEWER_ATTACH_SEEK_ERR: | |
1098 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Wrong seek parameter"); | |
1099 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1100 | goto end; | |
1101 | default: | |
1102 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Unknown attach return code %u", be32toh(rp.status)); | |
1103 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1104 | goto end; | |
1105 | } | |
1106 | ||
1107 | /* We receive the initial list of streams. */ | |
1108 | status = receive_streams(session, streams_count, self_msg_iter); | |
1109 | switch (status) { | |
1110 | case LTTNG_LIVE_VIEWER_STATUS_OK: | |
1111 | break; | |
1112 | case LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED: | |
1113 | goto end; | |
1114 | case LTTNG_LIVE_VIEWER_STATUS_ERROR: | |
1115 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Error receiving streams"); | |
1116 | goto end; | |
1117 | default: | |
1118 | bt_common_abort(); | |
1119 | } | |
1120 | ||
1121 | session->attached = true; | |
1122 | session->new_streams_needed = false; | |
7cdc2bab | 1123 | |
eee8e741 | 1124 | end: |
4164020e | 1125 | return status; |
7cdc2bab MD |
1126 | } |
1127 | ||
4164020e | 1128 | enum lttng_live_viewer_status lttng_live_session_detach(struct lttng_live_session *session) |
7cdc2bab | 1129 | { |
4164020e SM |
1130 | struct lttng_viewer_cmd cmd; |
1131 | enum lttng_live_viewer_status status; | |
1132 | struct lttng_viewer_detach_session_request rq; | |
1133 | struct lttng_viewer_detach_session_response rp; | |
1134 | struct lttng_live_msg_iter *lttng_live_msg_iter = session->lttng_live_msg_iter; | |
1135 | bt_self_component *self_comp = session->self_comp; | |
1136 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
1137 | uint64_t session_id = session->id; | |
1138 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); | |
1139 | char cmd_buf[cmd_buf_len]; | |
1140 | ||
1141 | /* | |
1142 | * The session might already be detached and the viewer socket might | |
1143 | * already been closed. This happens when calling this function when | |
1144 | * tearing down the graph after an error. | |
1145 | */ | |
1146 | if (!session->attached || viewer_connection->control_sock == BT_INVALID_SOCKET) { | |
1147 | return LTTNG_LIVE_VIEWER_STATUS_OK; | |
1148 | } | |
1149 | ||
1150 | BT_COMP_LOGD("Detaching from session: cmd=%s, session-id=%" PRIu64, | |
1151 | lttng_viewer_command_string(LTTNG_VIEWER_DETACH_SESSION), session_id); | |
1152 | ||
1153 | cmd.cmd = htobe32(LTTNG_VIEWER_DETACH_SESSION); | |
1154 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1155 | cmd.cmd_version = htobe32(0); | |
1156 | ||
1157 | memset(&rq, 0, sizeof(rq)); | |
1158 | rq.session_id = htobe64(session_id); | |
1159 | ||
1160 | /* | |
1161 | * Merge the cmd and connection request to prevent a write-write | |
1162 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1163 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1164 | */ | |
1165 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1166 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
1167 | status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); | |
1168 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1169 | viewer_handle_send_status(self_comp, NULL, status, "detach session command"); | |
1170 | goto end; | |
1171 | } | |
1172 | ||
1173 | status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); | |
1174 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1175 | viewer_handle_recv_status(self_comp, NULL, status, "detach session reply"); | |
1176 | goto end; | |
1177 | } | |
1178 | ||
1179 | switch (be32toh(rp.status)) { | |
1180 | case LTTNG_VIEWER_DETACH_SESSION_OK: | |
1181 | break; | |
1182 | case LTTNG_VIEWER_DETACH_SESSION_UNK: | |
1183 | BT_COMP_LOGW("Session id %" PRIu64 " is unknown", session_id); | |
1184 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1185 | goto end; | |
1186 | case LTTNG_VIEWER_DETACH_SESSION_ERR: | |
1187 | BT_COMP_LOGW("Error detaching session id %" PRIu64 "", session_id); | |
1188 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1189 | goto end; | |
1190 | default: | |
1191 | BT_COMP_LOGE("Unknown detach return code %u", be32toh(rp.status)); | |
1192 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1193 | goto end; | |
1194 | } | |
1195 | ||
1196 | session->attached = false; | |
1197 | ||
1198 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
7cdc2bab | 1199 | |
f79c2d7a | 1200 | end: |
4164020e | 1201 | return status; |
7cdc2bab MD |
1202 | } |
1203 | ||
4164020e SM |
1204 | enum lttng_live_get_one_metadata_status |
1205 | lttng_live_get_one_metadata_packet(struct lttng_live_trace *trace, FILE *fp, size_t *reply_len) | |
7cdc2bab | 1206 | { |
4164020e SM |
1207 | uint64_t len = 0; |
1208 | enum lttng_live_get_one_metadata_status status; | |
1209 | enum lttng_live_viewer_status viewer_status; | |
1210 | struct lttng_viewer_cmd cmd; | |
1211 | struct lttng_viewer_get_metadata rq; | |
1212 | struct lttng_viewer_metadata_packet rp; | |
1213 | gchar *data = NULL; | |
1214 | ssize_t writelen; | |
1215 | struct lttng_live_session *session = trace->session; | |
1216 | struct lttng_live_msg_iter *lttng_live_msg_iter = session->lttng_live_msg_iter; | |
1217 | struct lttng_live_metadata *metadata = trace->metadata; | |
1218 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
1219 | bt_self_component *self_comp = viewer_connection->self_comp; | |
1220 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); | |
1221 | char cmd_buf[cmd_buf_len]; | |
1222 | ||
1223 | BT_COMP_LOGD("Requesting new metadata for trace:" | |
1224 | "cmd=%s, trace-id=%" PRIu64 ", metadata-stream-id=%" PRIu64, | |
1225 | lttng_viewer_command_string(LTTNG_VIEWER_GET_METADATA), trace->id, | |
1226 | metadata->stream_id); | |
1227 | ||
1228 | rq.stream_id = htobe64(metadata->stream_id); | |
1229 | cmd.cmd = htobe32(LTTNG_VIEWER_GET_METADATA); | |
1230 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1231 | cmd.cmd_version = htobe32(0); | |
1232 | ||
1233 | /* | |
1234 | * Merge the cmd and connection request to prevent a write-write | |
1235 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1236 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1237 | */ | |
1238 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1239 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
1240 | viewer_status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); | |
1241 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1242 | viewer_handle_send_status(self_comp, NULL, viewer_status, "get metadata command"); | |
1243 | status = (enum lttng_live_get_one_metadata_status) viewer_status; | |
1244 | goto end; | |
1245 | } | |
1246 | ||
1247 | viewer_status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); | |
1248 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1249 | viewer_handle_recv_status(self_comp, NULL, viewer_status, "get metadata reply"); | |
1250 | status = (enum lttng_live_get_one_metadata_status) viewer_status; | |
1251 | goto end; | |
1252 | } | |
1253 | ||
1254 | switch (be32toh(rp.status)) { | |
1255 | case LTTNG_VIEWER_METADATA_OK: | |
1256 | BT_COMP_LOGD("Received get_metadata response: ok"); | |
1257 | break; | |
1258 | case LTTNG_VIEWER_NO_NEW_METADATA: | |
1259 | BT_COMP_LOGD("Received get_metadata response: no new"); | |
1260 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_END; | |
1261 | goto end; | |
1262 | case LTTNG_VIEWER_METADATA_ERR: | |
1263 | /* | |
1264 | * The Relayd cannot find this stream id. Maybe its | |
1265 | * gone already. This can happen in short lived UST app | |
1266 | * in a per-pid session. | |
1267 | */ | |
1268 | BT_COMP_LOGD("Received get_metadata response: error"); | |
1269 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_CLOSED; | |
1270 | goto end; | |
1271 | default: | |
1272 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Received get_metadata response: unknown"); | |
1273 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR; | |
1274 | goto end; | |
1275 | } | |
1276 | ||
1277 | len = be64toh(rp.len); | |
c5ce3927 FD |
1278 | if (len == 0) { |
1279 | /* | |
1280 | * We received a `LTTNG_VIEWER_METADATA_OK` with a packet | |
1281 | * length of 0. This means we must try again. This scenario | |
1282 | * arises when a clear command is performed on an lttng session. | |
1283 | */ | |
1284 | BT_COMP_LOGD( | |
1285 | "Expecting a metadata packet of size 0. Retry to get a packet from the relay."); | |
1286 | goto empty_metadata_packet_retry; | |
1287 | } | |
1288 | ||
4164020e SM |
1289 | BT_COMP_LOGD("Writing %" PRIu64 " bytes to metadata", len); |
1290 | if (len <= 0) { | |
1291 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Erroneous response length"); | |
1292 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR; | |
1293 | goto end; | |
1294 | } | |
1295 | ||
1296 | data = g_new0(gchar, len); | |
1297 | if (!data) { | |
1298 | BT_COMP_LOGE_APPEND_CAUSE_ERRNO(self_comp, "Failed to allocate data buffer", "."); | |
1299 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR; | |
1300 | goto end; | |
1301 | } | |
1302 | ||
1303 | viewer_status = lttng_live_recv(viewer_connection, data, len); | |
1304 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1305 | viewer_handle_recv_status(self_comp, NULL, viewer_status, "get metadata packet"); | |
1306 | status = (enum lttng_live_get_one_metadata_status) viewer_status; | |
1307 | goto end; | |
1308 | } | |
1309 | ||
1310 | /* | |
1311 | * Write the metadata to the file handle. | |
1312 | */ | |
1313 | writelen = fwrite(data, sizeof(uint8_t), len, fp); | |
1314 | if (writelen != len) { | |
1315 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Writing in the metadata file stream"); | |
1316 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR; | |
1317 | goto end; | |
1318 | } | |
1319 | ||
c5ce3927 | 1320 | empty_metadata_packet_retry: |
4164020e SM |
1321 | *reply_len = len; |
1322 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_OK; | |
c28512ab | 1323 | |
c28512ab | 1324 | end: |
4164020e SM |
1325 | g_free(data); |
1326 | return status; | |
7cdc2bab MD |
1327 | } |
1328 | ||
1329 | /* | |
1330 | * Assign the fields from a lttng_viewer_index to a packet_index. | |
1331 | */ | |
4164020e SM |
1332 | static void lttng_index_to_packet_index(struct lttng_viewer_index *lindex, |
1333 | struct packet_index *pindex) | |
7cdc2bab | 1334 | { |
4164020e SM |
1335 | BT_ASSERT(lindex); |
1336 | BT_ASSERT(pindex); | |
1337 | ||
1338 | pindex->offset = be64toh(lindex->offset); | |
1339 | pindex->packet_size = be64toh(lindex->packet_size); | |
1340 | pindex->content_size = be64toh(lindex->content_size); | |
1341 | pindex->ts_cycles.timestamp_begin = be64toh(lindex->timestamp_begin); | |
1342 | pindex->ts_cycles.timestamp_end = be64toh(lindex->timestamp_end); | |
1343 | pindex->events_discarded = be64toh(lindex->events_discarded); | |
7cdc2bab MD |
1344 | } |
1345 | ||
4164020e | 1346 | static void lttng_live_need_new_streams(struct lttng_live_msg_iter *lttng_live_msg_iter) |
36e94ad6 | 1347 | { |
4164020e SM |
1348 | uint64_t session_idx; |
1349 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
1350 | ||
1351 | for (session_idx = 0; session_idx < lttng_live_msg_iter->sessions->len; session_idx++) { | |
1352 | struct lttng_live_session *session = | |
1353 | (lttng_live_session *) g_ptr_array_index(lttng_live_msg_iter->sessions, session_idx); | |
1354 | BT_COMP_LOGD("Marking session as needing new streams: " | |
1355 | "session-id=%" PRIu64, | |
1356 | session->id); | |
1357 | session->new_streams_needed = true; | |
1358 | } | |
36e94ad6 FD |
1359 | } |
1360 | ||
4164020e SM |
1361 | enum lttng_live_iterator_status |
1362 | lttng_live_get_next_index(struct lttng_live_msg_iter *lttng_live_msg_iter, | |
1363 | struct lttng_live_stream_iterator *stream, struct packet_index *index) | |
7cdc2bab | 1364 | { |
4164020e SM |
1365 | struct lttng_viewer_cmd cmd; |
1366 | struct lttng_viewer_get_next_index rq; | |
1367 | enum lttng_live_viewer_status viewer_status; | |
1368 | struct lttng_viewer_index rp; | |
1369 | enum lttng_live_iterator_status status; | |
1370 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
1371 | bt_self_component *self_comp = viewer_connection->self_comp; | |
1372 | struct lttng_live_trace *trace = stream->trace; | |
1373 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); | |
1374 | char cmd_buf[cmd_buf_len]; | |
1375 | uint32_t flags, rp_status; | |
1376 | ||
1377 | BT_COMP_LOGD("Requesting next index for stream: cmd=%s, " | |
1378 | "viewer-stream-id=%" PRIu64, | |
1379 | lttng_viewer_command_string(LTTNG_VIEWER_GET_NEXT_INDEX), | |
1380 | stream->viewer_stream_id); | |
1381 | cmd.cmd = htobe32(LTTNG_VIEWER_GET_NEXT_INDEX); | |
1382 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1383 | cmd.cmd_version = htobe32(0); | |
1384 | ||
1385 | memset(&rq, 0, sizeof(rq)); | |
1386 | rq.stream_id = htobe64(stream->viewer_stream_id); | |
1387 | ||
1388 | /* | |
1389 | * Merge the cmd and connection request to prevent a write-write | |
1390 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1391 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1392 | */ | |
1393 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1394 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
1395 | ||
1396 | viewer_status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); | |
1397 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1398 | viewer_handle_send_status(self_comp, NULL, viewer_status, "get next index command"); | |
1399 | goto error; | |
1400 | } | |
1401 | ||
1402 | viewer_status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); | |
1403 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1404 | viewer_handle_recv_status(self_comp, NULL, viewer_status, "get next index reply"); | |
1405 | goto error; | |
1406 | } | |
1407 | ||
1408 | flags = be32toh(rp.flags); | |
1409 | rp_status = be32toh(rp.status); | |
1410 | ||
1411 | BT_COMP_LOGD("Received response from relay daemon: cmd=%s, response=%s", | |
1412 | lttng_viewer_command_string(LTTNG_VIEWER_GET_NEXT_INDEX), | |
1413 | lttng_viewer_next_index_return_code_string(rp_status)); | |
1414 | switch (rp_status) { | |
1415 | case LTTNG_VIEWER_INDEX_INACTIVE: | |
1416 | { | |
1417 | uint64_t ctf_stream_class_id; | |
1418 | ||
1419 | memset(index, 0, sizeof(struct packet_index)); | |
1420 | index->ts_cycles.timestamp_end = be64toh(rp.timestamp_end); | |
1421 | stream->current_inactivity_ts = index->ts_cycles.timestamp_end; | |
1422 | ctf_stream_class_id = be64toh(rp.stream_id); | |
1423 | if (stream->ctf_stream_class_id.is_set) { | |
1424 | BT_ASSERT(stream->ctf_stream_class_id.value == ctf_stream_class_id); | |
1425 | } else { | |
1426 | stream->ctf_stream_class_id.value = ctf_stream_class_id; | |
1427 | stream->ctf_stream_class_id.is_set = true; | |
1428 | } | |
1429 | lttng_live_stream_iterator_set_state(stream, LTTNG_LIVE_STREAM_QUIESCENT); | |
1430 | status = LTTNG_LIVE_ITERATOR_STATUS_OK; | |
1431 | break; | |
1432 | } | |
1433 | case LTTNG_VIEWER_INDEX_OK: | |
1434 | { | |
1435 | uint64_t ctf_stream_class_id; | |
1436 | ||
1437 | lttng_index_to_packet_index(&rp, index); | |
1438 | ctf_stream_class_id = be64toh(rp.stream_id); | |
1439 | if (stream->ctf_stream_class_id.is_set) { | |
1440 | BT_ASSERT(stream->ctf_stream_class_id.value == ctf_stream_class_id); | |
1441 | } else { | |
1442 | stream->ctf_stream_class_id.value = ctf_stream_class_id; | |
1443 | stream->ctf_stream_class_id.is_set = true; | |
1444 | } | |
1445 | ||
1446 | lttng_live_stream_iterator_set_state(stream, LTTNG_LIVE_STREAM_ACTIVE_DATA); | |
1447 | ||
1448 | if (flags & LTTNG_VIEWER_FLAG_NEW_METADATA) { | |
1449 | BT_COMP_LOGD("Marking trace as needing new metadata: " | |
1450 | "response=%s, response-flag=NEW_METADATA, trace-id=%" PRIu64, | |
1451 | lttng_viewer_next_index_return_code_string(rp_status), trace->id); | |
1452 | trace->metadata_stream_state = LTTNG_LIVE_METADATA_STREAM_STATE_NEEDED; | |
1453 | } | |
1454 | if (flags & LTTNG_VIEWER_FLAG_NEW_STREAM) { | |
1455 | BT_COMP_LOGD("Marking all sessions as possibly needing new streams: " | |
1456 | "response=%s, response-flag=NEW_STREAM", | |
1457 | lttng_viewer_next_index_return_code_string(rp_status)); | |
1458 | lttng_live_need_new_streams(lttng_live_msg_iter); | |
1459 | } | |
1460 | status = LTTNG_LIVE_ITERATOR_STATUS_OK; | |
1461 | break; | |
1462 | } | |
1463 | case LTTNG_VIEWER_INDEX_RETRY: | |
1464 | memset(index, 0, sizeof(struct packet_index)); | |
1465 | lttng_live_stream_iterator_set_state(stream, LTTNG_LIVE_STREAM_ACTIVE_NO_DATA); | |
1466 | status = LTTNG_LIVE_ITERATOR_STATUS_AGAIN; | |
1467 | goto end; | |
1468 | case LTTNG_VIEWER_INDEX_HUP: | |
1469 | memset(index, 0, sizeof(struct packet_index)); | |
1470 | index->offset = EOF; | |
1471 | lttng_live_stream_iterator_set_state(stream, LTTNG_LIVE_STREAM_EOF); | |
1472 | stream->has_stream_hung_up = true; | |
1473 | status = LTTNG_LIVE_ITERATOR_STATUS_END; | |
1474 | break; | |
1475 | case LTTNG_VIEWER_INDEX_ERR: | |
1476 | memset(index, 0, sizeof(struct packet_index)); | |
1477 | lttng_live_stream_iterator_set_state(stream, LTTNG_LIVE_STREAM_ACTIVE_NO_DATA); | |
1478 | status = LTTNG_LIVE_ITERATOR_STATUS_ERROR; | |
1479 | goto end; | |
1480 | default: | |
1481 | BT_COMP_LOGD("Received get_next_index response: unknown value"); | |
1482 | memset(index, 0, sizeof(struct packet_index)); | |
1483 | lttng_live_stream_iterator_set_state(stream, LTTNG_LIVE_STREAM_ACTIVE_NO_DATA); | |
1484 | status = LTTNG_LIVE_ITERATOR_STATUS_ERROR; | |
1485 | goto end; | |
1486 | } | |
1487 | goto end; | |
7cdc2bab MD |
1488 | |
1489 | error: | |
4164020e | 1490 | status = viewer_status_to_live_iterator_status(viewer_status); |
f79c2d7a | 1491 | end: |
4164020e | 1492 | return status; |
7cdc2bab MD |
1493 | } |
1494 | ||
4164020e SM |
1495 | enum ctf_msg_iter_medium_status |
1496 | lttng_live_get_stream_bytes(struct lttng_live_msg_iter *lttng_live_msg_iter, | |
1497 | struct lttng_live_stream_iterator *stream, uint8_t *buf, | |
1498 | uint64_t offset, uint64_t req_len, uint64_t *recv_len) | |
7cdc2bab | 1499 | { |
4164020e SM |
1500 | enum ctf_msg_iter_medium_status status; |
1501 | enum lttng_live_viewer_status viewer_status; | |
1502 | struct lttng_viewer_trace_packet rp; | |
1503 | struct lttng_viewer_cmd cmd; | |
1504 | struct lttng_viewer_get_packet rq; | |
1505 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
1506 | bt_self_component *self_comp = viewer_connection->self_comp; | |
1507 | struct lttng_live_trace *trace = stream->trace; | |
1508 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); | |
1509 | char cmd_buf[cmd_buf_len]; | |
1510 | uint32_t flags, rp_status; | |
1511 | ||
1512 | BT_COMP_LOGD("Requesting data from stream: cmd=%s, " | |
1513 | "offset=%" PRIu64 ", request-len=%" PRIu64, | |
1514 | lttng_viewer_command_string(LTTNG_VIEWER_GET_PACKET), offset, req_len); | |
1515 | ||
1516 | cmd.cmd = htobe32(LTTNG_VIEWER_GET_PACKET); | |
1517 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1518 | cmd.cmd_version = htobe32(0); | |
1519 | ||
1520 | memset(&rq, 0, sizeof(rq)); | |
1521 | rq.stream_id = htobe64(stream->viewer_stream_id); | |
1522 | rq.offset = htobe64(offset); | |
1523 | rq.len = htobe32(req_len); | |
1524 | ||
1525 | /* | |
1526 | * Merge the cmd and connection request to prevent a write-write | |
1527 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1528 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1529 | */ | |
1530 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1531 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
1532 | ||
1533 | viewer_status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); | |
1534 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1535 | viewer_handle_send_status(self_comp, NULL, viewer_status, "get data packet command"); | |
1536 | goto error_convert_status; | |
1537 | } | |
1538 | ||
1539 | viewer_status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); | |
1540 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1541 | viewer_handle_recv_status(self_comp, NULL, viewer_status, "get data packet reply"); | |
1542 | goto error_convert_status; | |
1543 | } | |
1544 | ||
1545 | flags = be32toh(rp.flags); | |
1546 | rp_status = be32toh(rp.status); | |
1547 | ||
1548 | BT_COMP_LOGD("Received response from relay daemon: cmd=%s, response=%s", | |
1549 | lttng_viewer_command_string(LTTNG_VIEWER_GET_PACKET), | |
1550 | lttng_viewer_get_packet_return_code_string(rp_status)); | |
1551 | switch (rp_status) { | |
1552 | case LTTNG_VIEWER_GET_PACKET_OK: | |
1553 | req_len = be32toh(rp.len); | |
1554 | BT_COMP_LOGD("Got packet from relay daemon: response=%s, packet-len=%" PRIu64 "", | |
1555 | lttng_viewer_get_packet_return_code_string(rp_status), req_len); | |
4164020e SM |
1556 | break; |
1557 | case LTTNG_VIEWER_GET_PACKET_RETRY: | |
1558 | /* Unimplemented by relay daemon */ | |
1559 | status = CTF_MSG_ITER_MEDIUM_STATUS_AGAIN; | |
1560 | goto end; | |
1561 | case LTTNG_VIEWER_GET_PACKET_ERR: | |
1562 | if (flags & LTTNG_VIEWER_FLAG_NEW_METADATA) { | |
1563 | BT_COMP_LOGD("Marking trace as needing new metadata: " | |
1564 | "response=%s, response-flag=NEW_METADATA, trace-id=%" PRIu64, | |
1565 | lttng_viewer_next_index_return_code_string(rp_status), trace->id); | |
1566 | trace->metadata_stream_state = LTTNG_LIVE_METADATA_STREAM_STATE_NEEDED; | |
1567 | } | |
1568 | if (flags & LTTNG_VIEWER_FLAG_NEW_STREAM) { | |
1569 | BT_COMP_LOGD("Marking all sessions as possibly needing new streams: " | |
1570 | "response=%s, response-flag=NEW_STREAM", | |
1571 | lttng_viewer_next_index_return_code_string(rp_status)); | |
1572 | lttng_live_need_new_streams(lttng_live_msg_iter); | |
1573 | } | |
1574 | if (flags & (LTTNG_VIEWER_FLAG_NEW_METADATA | LTTNG_VIEWER_FLAG_NEW_STREAM)) { | |
1575 | status = CTF_MSG_ITER_MEDIUM_STATUS_AGAIN; | |
1576 | BT_COMP_LOGD("Reply with any one flags set means we should retry: response=%s", | |
1577 | lttng_viewer_get_packet_return_code_string(rp_status)); | |
1578 | goto end; | |
1579 | } | |
1580 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Received get_data_packet response: error"); | |
1581 | status = CTF_MSG_ITER_MEDIUM_STATUS_ERROR; | |
1582 | goto end; | |
1583 | case LTTNG_VIEWER_GET_PACKET_EOF: | |
1584 | status = CTF_MSG_ITER_MEDIUM_STATUS_EOF; | |
1585 | goto end; | |
1586 | default: | |
1587 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Received get_data_packet response: unknown (%d)", | |
1588 | rp_status); | |
1589 | status = CTF_MSG_ITER_MEDIUM_STATUS_ERROR; | |
1590 | goto end; | |
1591 | } | |
1592 | ||
1593 | if (req_len == 0) { | |
1594 | status = CTF_MSG_ITER_MEDIUM_STATUS_ERROR; | |
1595 | goto end; | |
1596 | } | |
1597 | ||
1598 | viewer_status = lttng_live_recv(viewer_connection, buf, req_len); | |
1599 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1600 | viewer_handle_recv_status(self_comp, NULL, viewer_status, "get data packet"); | |
1601 | goto error_convert_status; | |
1602 | } | |
1603 | *recv_len = req_len; | |
1604 | ||
1605 | status = CTF_MSG_ITER_MEDIUM_STATUS_OK; | |
1606 | goto end; | |
f79c2d7a | 1607 | |
535fb48a | 1608 | error_convert_status: |
4164020e | 1609 | status = viewer_status_to_ctf_msg_iter_medium_status(viewer_status); |
f79c2d7a | 1610 | end: |
4164020e | 1611 | return status; |
7cdc2bab MD |
1612 | } |
1613 | ||
1614 | /* | |
1615 | * Request new streams for a session. | |
1616 | */ | |
4164020e SM |
1617 | enum lttng_live_iterator_status |
1618 | lttng_live_session_get_new_streams(struct lttng_live_session *session, | |
1619 | bt_self_message_iterator *self_msg_iter) | |
7cdc2bab | 1620 | { |
4164020e SM |
1621 | enum lttng_live_iterator_status status = LTTNG_LIVE_ITERATOR_STATUS_OK; |
1622 | struct lttng_viewer_cmd cmd; | |
1623 | struct lttng_viewer_new_streams_request rq; | |
1624 | struct lttng_viewer_new_streams_response rp; | |
1625 | struct lttng_live_msg_iter *lttng_live_msg_iter = session->lttng_live_msg_iter; | |
1626 | enum lttng_live_viewer_status viewer_status; | |
1627 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
1628 | bt_self_component *self_comp = viewer_connection->self_comp; | |
1629 | uint32_t streams_count; | |
1630 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); | |
1631 | char cmd_buf[cmd_buf_len]; | |
1632 | ||
1633 | if (!session->new_streams_needed) { | |
1634 | status = LTTNG_LIVE_ITERATOR_STATUS_OK; | |
1635 | goto end; | |
1636 | } | |
1637 | ||
1638 | BT_COMP_LOGD("Requesting new streams for session: cmd=%s, " | |
1639 | "session-id=%" PRIu64, | |
1640 | lttng_viewer_command_string(LTTNG_VIEWER_GET_NEW_STREAMS), session->id); | |
1641 | ||
1642 | cmd.cmd = htobe32(LTTNG_VIEWER_GET_NEW_STREAMS); | |
1643 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1644 | cmd.cmd_version = htobe32(0); | |
1645 | ||
1646 | memset(&rq, 0, sizeof(rq)); | |
1647 | rq.session_id = htobe64(session->id); | |
1648 | ||
1649 | /* | |
1650 | * Merge the cmd and connection request to prevent a write-write | |
1651 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1652 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1653 | */ | |
1654 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1655 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
1656 | ||
1657 | viewer_status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); | |
1658 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1659 | viewer_handle_send_status(self_comp, NULL, viewer_status, "get new streams command"); | |
1660 | status = viewer_status_to_live_iterator_status(viewer_status); | |
1661 | goto end; | |
1662 | } | |
1663 | ||
1664 | viewer_status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); | |
1665 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1666 | viewer_handle_recv_status(self_comp, NULL, viewer_status, "get new streams reply"); | |
1667 | status = viewer_status_to_live_iterator_status(viewer_status); | |
1668 | goto end; | |
1669 | } | |
1670 | ||
1671 | streams_count = be32toh(rp.streams_count); | |
1672 | ||
1673 | switch (be32toh(rp.status)) { | |
1674 | case LTTNG_VIEWER_NEW_STREAMS_OK: | |
1675 | session->new_streams_needed = false; | |
1676 | break; | |
1677 | case LTTNG_VIEWER_NEW_STREAMS_NO_NEW: | |
1678 | session->new_streams_needed = false; | |
1679 | goto end; | |
1680 | case LTTNG_VIEWER_NEW_STREAMS_HUP: | |
1681 | session->new_streams_needed = false; | |
1682 | session->closed = true; | |
1683 | status = LTTNG_LIVE_ITERATOR_STATUS_END; | |
1684 | goto end; | |
1685 | case LTTNG_VIEWER_NEW_STREAMS_ERR: | |
1686 | BT_COMP_LOGD("Received get_new_streams response: error"); | |
1687 | status = LTTNG_LIVE_ITERATOR_STATUS_ERROR; | |
1688 | goto end; | |
1689 | default: | |
1690 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, | |
1691 | "Received get_new_streams response: Unknown:" | |
1692 | "return code %u", | |
1693 | be32toh(rp.status)); | |
1694 | status = LTTNG_LIVE_ITERATOR_STATUS_ERROR; | |
1695 | goto end; | |
1696 | } | |
1697 | ||
1698 | viewer_status = receive_streams(session, streams_count, self_msg_iter); | |
1699 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1700 | viewer_handle_recv_status(self_comp, NULL, viewer_status, "new streams"); | |
1701 | status = viewer_status_to_live_iterator_status(viewer_status); | |
1702 | goto end; | |
1703 | } | |
1704 | ||
1705 | status = LTTNG_LIVE_ITERATOR_STATUS_OK; | |
f79c2d7a | 1706 | end: |
4164020e | 1707 | return status; |
7cdc2bab MD |
1708 | } |
1709 | ||
f79c2d7a | 1710 | enum lttng_live_viewer_status live_viewer_connection_create( |
4164020e SM |
1711 | bt_self_component *self_comp, bt_self_component_class *self_comp_class, |
1712 | bt_logging_level log_level, const char *url, bool in_query, | |
1713 | struct lttng_live_msg_iter *lttng_live_msg_iter, struct live_viewer_connection **viewer) | |
7cdc2bab | 1714 | { |
4164020e SM |
1715 | struct live_viewer_connection *viewer_connection; |
1716 | enum lttng_live_viewer_status status; | |
1717 | ||
1718 | viewer_connection = g_new0(struct live_viewer_connection, 1); | |
1719 | ||
1720 | if (bt_socket_init(log_level) != 0) { | |
1721 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
1722 | "Failed to init socket"); | |
1723 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1724 | goto error; | |
1725 | } | |
1726 | ||
1727 | viewer_connection->log_level = log_level; | |
1728 | ||
1729 | viewer_connection->self_comp = self_comp; | |
1730 | viewer_connection->self_comp_class = self_comp_class; | |
1731 | ||
1732 | viewer_connection->control_sock = BT_INVALID_SOCKET; | |
1733 | viewer_connection->port = -1; | |
1734 | viewer_connection->in_query = in_query; | |
1735 | viewer_connection->lttng_live_msg_iter = lttng_live_msg_iter; | |
1736 | viewer_connection->url = g_string_new(url); | |
1737 | if (!viewer_connection->url) { | |
1738 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
1739 | "Failed to allocate URL buffer"); | |
1740 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1741 | goto error; | |
1742 | } | |
1743 | ||
1744 | BT_COMP_OR_COMP_CLASS_LOGD(self_comp, self_comp_class, | |
1745 | "Establishing connection to url \"%s\"...", url); | |
1746 | status = lttng_live_connect_viewer(viewer_connection); | |
1747 | /* | |
1748 | * Only print error and append cause in case of error. not in case of | |
1749 | * interruption. | |
1750 | */ | |
1751 | if (status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
1752 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
1753 | "Failed to establish connection: " | |
1754 | "url=\"%s\"", | |
1755 | url); | |
1756 | goto error; | |
1757 | } else if (status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { | |
1758 | goto error; | |
1759 | } | |
1760 | BT_COMP_OR_COMP_CLASS_LOGD(self_comp, self_comp_class, | |
1761 | "Connection to url \"%s\" is established", url); | |
1762 | ||
1763 | *viewer = viewer_connection; | |
1764 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
1765 | goto end; | |
7cdc2bab | 1766 | |
7cdc2bab | 1767 | error: |
4164020e SM |
1768 | if (viewer_connection) { |
1769 | live_viewer_connection_destroy(viewer_connection); | |
1770 | } | |
f79c2d7a | 1771 | end: |
4164020e | 1772 | return status; |
7cdc2bab MD |
1773 | } |
1774 | ||
4164020e | 1775 | void live_viewer_connection_destroy(struct live_viewer_connection *viewer_connection) |
7cdc2bab | 1776 | { |
4164020e SM |
1777 | bt_self_component *self_comp = viewer_connection->self_comp; |
1778 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
b9e6ec43 | 1779 | |
4164020e SM |
1780 | if (!viewer_connection) { |
1781 | goto end; | |
1782 | } | |
b9e6ec43 | 1783 | |
4164020e SM |
1784 | BT_COMP_OR_COMP_CLASS_LOGD(self_comp, self_comp_class, |
1785 | "Closing connection to relay:" | |
1786 | "relay-url=\"%s\"", | |
1787 | viewer_connection->url->str); | |
ecb4ba8a | 1788 | |
4164020e | 1789 | lttng_live_disconnect_viewer(viewer_connection); |
b9e6ec43 | 1790 | |
4164020e SM |
1791 | if (viewer_connection->url) { |
1792 | g_string_free(viewer_connection->url, true); | |
1793 | } | |
b9e6ec43 | 1794 | |
4164020e SM |
1795 | if (viewer_connection->relay_hostname) { |
1796 | g_string_free(viewer_connection->relay_hostname, true); | |
1797 | } | |
b9e6ec43 | 1798 | |
4164020e SM |
1799 | if (viewer_connection->target_hostname) { |
1800 | g_string_free(viewer_connection->target_hostname, true); | |
1801 | } | |
b9e6ec43 | 1802 | |
4164020e SM |
1803 | if (viewer_connection->session_name) { |
1804 | g_string_free(viewer_connection->session_name, true); | |
1805 | } | |
b9e6ec43 | 1806 | |
4164020e SM |
1807 | if (viewer_connection->proto) { |
1808 | g_string_free(viewer_connection->proto, true); | |
1809 | } | |
ecb4ba8a | 1810 | |
4164020e | 1811 | g_free(viewer_connection); |
1cb3cdd7 | 1812 | |
4164020e | 1813 | bt_socket_fini(); |
b9e6ec43 FD |
1814 | |
1815 | end: | |
4164020e | 1816 | return; |
7cdc2bab | 1817 | } |