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 | ||
3c22a242 | 8 | #include <fcntl.h> |
c802cacb | 9 | #include <glib.h> |
7cdc2bab | 10 | #include <stdint.h> |
3c22a242 | 11 | #include <stdio.h> |
7cdc2bab | 12 | #include <stdlib.h> |
3c22a242 | 13 | #include <sys/types.h> |
7cdc2bab | 14 | #include <unistd.h> |
3c22a242 | 15 | |
c802cacb SM |
16 | #include <babeltrace2/babeltrace.h> |
17 | ||
18 | #define BT_COMP_LOG_SELF_COMP (viewer_connection->self_comp) | |
19 | #define BT_LOG_OUTPUT_LEVEL (viewer_connection->log_level) | |
20 | #define BT_LOG_TAG "PLUGIN/SRC.CTF.LTTNG-LIVE/VIEWER" | |
21 | #include "logging/comp-logging.h" | |
7cdc2bab | 22 | |
578e048b | 23 | #include "common/common.h" |
c802cacb SM |
24 | #include "compat/compiler.h" |
25 | #include "compat/endian.h" | |
26 | #include "compat/socket.h" | |
7cdc2bab | 27 | |
c802cacb | 28 | #include "data-stream.hpp" |
087cd0f5 | 29 | #include "lttng-live.hpp" |
087cd0f5 | 30 | #include "lttng-viewer-abi.hpp" |
087cd0f5 | 31 | #include "metadata.hpp" |
c802cacb | 32 | #include "viewer-connection.hpp" |
7cdc2bab | 33 | |
4164020e SM |
34 | #define viewer_handle_send_recv_status(_self_comp, _self_comp_class, _status, _action, _msg_str) \ |
35 | do { \ | |
36 | switch (_status) { \ | |
37 | case LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED: \ | |
38 | break; \ | |
39 | case LTTNG_LIVE_VIEWER_STATUS_ERROR: \ | |
40 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(_self_comp, _self_comp_class, \ | |
41 | "Error " _action " " _msg_str); \ | |
42 | break; \ | |
43 | default: \ | |
44 | bt_common_abort(); \ | |
45 | } \ | |
46 | } while (0) | |
47 | ||
48 | #define viewer_handle_send_status(_self_comp, _self_comp_class, _status, _msg_str) \ | |
49 | viewer_handle_send_recv_status(_self_comp, _self_comp_class, _status, "sending", _msg_str) | |
50 | ||
51 | #define viewer_handle_recv_status(_self_comp, _self_comp_class, _status, _msg_str) \ | |
52 | viewer_handle_send_recv_status(_self_comp, _self_comp_class, _status, "receiving", _msg_str) | |
53 | ||
54 | #define LTTNG_LIVE_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE_ERRNO(_self_comp, _self_comp_class, _msg, \ | |
55 | _fmt, ...) \ | |
56 | do { \ | |
57 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(_self_comp, _self_comp_class, _msg ": %s" _fmt, \ | |
58 | bt_socket_errormsg(), ##__VA_ARGS__); \ | |
59 | } while (0) | |
60 | ||
61 | static const char *lttng_viewer_command_string(enum lttng_viewer_command cmd) | |
f93afbf9 | 62 | { |
4164020e SM |
63 | switch (cmd) { |
64 | case LTTNG_VIEWER_CONNECT: | |
65 | return "CONNECT"; | |
66 | case LTTNG_VIEWER_LIST_SESSIONS: | |
67 | return "LIST_SESSIONS"; | |
68 | case LTTNG_VIEWER_ATTACH_SESSION: | |
69 | return "ATTACH_SESSION"; | |
70 | case LTTNG_VIEWER_GET_NEXT_INDEX: | |
71 | return "GET_NEXT_INDEX"; | |
72 | case LTTNG_VIEWER_GET_PACKET: | |
73 | return "GET_PACKET"; | |
74 | case LTTNG_VIEWER_GET_METADATA: | |
75 | return "GET_METADATA"; | |
76 | case LTTNG_VIEWER_GET_NEW_STREAMS: | |
77 | return "GET_NEW_STREAMS"; | |
78 | case LTTNG_VIEWER_CREATE_SESSION: | |
79 | return "CREATE_SESSION"; | |
80 | case LTTNG_VIEWER_DETACH_SESSION: | |
81 | return "DETACH_SESSION"; | |
82 | } | |
83 | ||
84 | bt_common_abort(); | |
f93afbf9 FD |
85 | } |
86 | ||
4164020e SM |
87 | static const char * |
88 | lttng_viewer_next_index_return_code_string(enum lttng_viewer_next_index_return_code code) | |
f93afbf9 | 89 | { |
4164020e SM |
90 | switch (code) { |
91 | case LTTNG_VIEWER_INDEX_OK: | |
92 | return "INDEX_OK"; | |
93 | case LTTNG_VIEWER_INDEX_RETRY: | |
94 | return "INDEX_RETRY"; | |
95 | case LTTNG_VIEWER_INDEX_HUP: | |
96 | return "INDEX_HUP"; | |
97 | case LTTNG_VIEWER_INDEX_ERR: | |
98 | return "INDEX_ERR"; | |
99 | case LTTNG_VIEWER_INDEX_INACTIVE: | |
100 | return "INDEX_INACTIVE"; | |
101 | case LTTNG_VIEWER_INDEX_EOF: | |
102 | return "INDEX_EOF"; | |
103 | } | |
104 | ||
105 | bt_common_abort(); | |
f93afbf9 FD |
106 | } |
107 | ||
4164020e | 108 | static const char *lttng_viewer_next_index_return_code_string(uint32_t code) |
087cd0f5 | 109 | { |
4164020e | 110 | return lttng_viewer_next_index_return_code_string((lttng_viewer_next_index_return_code) code); |
087cd0f5 SM |
111 | } |
112 | ||
4164020e SM |
113 | static const char * |
114 | lttng_viewer_get_packet_return_code_string(enum lttng_viewer_get_packet_return_code code) | |
f93afbf9 | 115 | { |
4164020e SM |
116 | switch (code) { |
117 | case LTTNG_VIEWER_GET_PACKET_OK: | |
118 | return "GET_PACKET_OK"; | |
119 | case LTTNG_VIEWER_GET_PACKET_RETRY: | |
120 | return "GET_PACKET_RETRY"; | |
121 | case LTTNG_VIEWER_GET_PACKET_ERR: | |
122 | return "GET_PACKET_ERR"; | |
123 | case LTTNG_VIEWER_GET_PACKET_EOF: | |
124 | return "GET_PACKET_EOF"; | |
125 | } | |
126 | ||
127 | bt_common_abort(); | |
f93afbf9 FD |
128 | }; |
129 | ||
4164020e | 130 | static const char *lttng_viewer_get_packet_return_code_string(uint32_t code) |
087cd0f5 | 131 | { |
4164020e | 132 | return lttng_viewer_get_packet_return_code_string((lttng_viewer_get_packet_return_code) code); |
087cd0f5 SM |
133 | } |
134 | ||
4164020e | 135 | static const char *lttng_viewer_seek_string(enum lttng_viewer_seek seek) |
f93afbf9 | 136 | { |
4164020e SM |
137 | switch (seek) { |
138 | case LTTNG_VIEWER_SEEK_BEGINNING: | |
139 | return "SEEK_BEGINNING"; | |
140 | case LTTNG_VIEWER_SEEK_LAST: | |
141 | return "SEEK_LAST"; | |
142 | } | |
143 | ||
144 | bt_common_abort(); | |
f93afbf9 FD |
145 | } |
146 | ||
4164020e SM |
147 | static inline enum lttng_live_iterator_status |
148 | viewer_status_to_live_iterator_status(enum lttng_live_viewer_status viewer_status) | |
f79c2d7a | 149 | { |
4164020e SM |
150 | switch (viewer_status) { |
151 | case LTTNG_LIVE_VIEWER_STATUS_OK: | |
152 | return LTTNG_LIVE_ITERATOR_STATUS_OK; | |
153 | case LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED: | |
154 | return LTTNG_LIVE_ITERATOR_STATUS_AGAIN; | |
155 | case LTTNG_LIVE_VIEWER_STATUS_ERROR: | |
156 | return LTTNG_LIVE_ITERATOR_STATUS_ERROR; | |
157 | } | |
158 | ||
159 | bt_common_abort(); | |
f79c2d7a FD |
160 | } |
161 | ||
4164020e SM |
162 | static inline enum ctf_msg_iter_medium_status |
163 | viewer_status_to_ctf_msg_iter_medium_status(enum lttng_live_viewer_status viewer_status) | |
f79c2d7a | 164 | { |
4164020e SM |
165 | switch (viewer_status) { |
166 | case LTTNG_LIVE_VIEWER_STATUS_OK: | |
167 | return CTF_MSG_ITER_MEDIUM_STATUS_OK; | |
168 | case LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED: | |
169 | return CTF_MSG_ITER_MEDIUM_STATUS_AGAIN; | |
170 | case LTTNG_LIVE_VIEWER_STATUS_ERROR: | |
171 | return CTF_MSG_ITER_MEDIUM_STATUS_ERROR; | |
172 | } | |
173 | ||
174 | bt_common_abort(); | |
f79c2d7a FD |
175 | } |
176 | ||
4164020e | 177 | static inline void viewer_connection_close_socket(struct live_viewer_connection *viewer_connection) |
b197ca37 | 178 | { |
4164020e SM |
179 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; |
180 | bt_self_component *self_comp = viewer_connection->self_comp; | |
181 | int ret = bt_socket_close(viewer_connection->control_sock); | |
182 | if (ret == -1) { | |
183 | BT_COMP_OR_COMP_CLASS_LOGW_ERRNO(self_comp, self_comp_class, | |
184 | "Error closing viewer connection socket: ", "."); | |
185 | } | |
186 | ||
187 | viewer_connection->control_sock = BT_INVALID_SOCKET; | |
b197ca37 FD |
188 | } |
189 | ||
f79c2d7a FD |
190 | /* |
191 | * This function receives a message from the Relay daemon. | |
192 | * If it received the entire message, it returns _OK, | |
193 | * If it's interrupted, it returns _INTERRUPTED, | |
194 | * otherwise, it returns _ERROR. | |
195 | */ | |
4164020e SM |
196 | static enum lttng_live_viewer_status |
197 | lttng_live_recv(struct live_viewer_connection *viewer_connection, void *buf, size_t len) | |
7cdc2bab | 198 | { |
4164020e SM |
199 | ssize_t received; |
200 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
201 | bt_self_component *self_comp = viewer_connection->self_comp; | |
202 | size_t total_received = 0, to_receive = len; | |
203 | struct lttng_live_msg_iter *lttng_live_msg_iter = viewer_connection->lttng_live_msg_iter; | |
204 | enum lttng_live_viewer_status status; | |
205 | BT_SOCKET sock = viewer_connection->control_sock; | |
206 | ||
207 | /* | |
208 | * Receive a message from the Relay. | |
209 | */ | |
210 | do { | |
211 | received = bt_socket_recv(sock, (char *) buf + total_received, to_receive, 0); | |
212 | if (received == BT_SOCKET_ERROR) { | |
213 | if (bt_socket_interrupted()) { | |
214 | if (lttng_live_graph_is_canceled(lttng_live_msg_iter)) { | |
215 | /* | |
216 | * This interruption was due to a | |
217 | * SIGINT and the graph is being torn | |
218 | * down. | |
219 | */ | |
220 | status = LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED; | |
221 | lttng_live_msg_iter->was_interrupted = true; | |
222 | goto end; | |
223 | } else { | |
224 | /* | |
225 | * A signal was received, but the graph | |
226 | * is not being torn down. Carry on. | |
227 | */ | |
228 | continue; | |
229 | } | |
230 | } else { | |
231 | /* | |
232 | * For any other types of socket error, close | |
233 | * the socket and return an error. | |
234 | */ | |
235 | LTTNG_LIVE_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE_ERRNO( | |
236 | self_comp, self_comp_class, "Error receiving from Relay", "."); | |
237 | ||
238 | viewer_connection_close_socket(viewer_connection); | |
239 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
240 | goto end; | |
241 | } | |
242 | } else if (received == 0) { | |
243 | /* | |
244 | * The recv() call returned 0. This means the | |
245 | * connection was orderly shutdown from the other peer. | |
246 | * If that happens when we are trying to receive | |
247 | * a message from it, it means something when wrong. | |
248 | * Close the socket and return an error. | |
249 | */ | |
250 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
251 | "Remote side has closed connection"); | |
252 | viewer_connection_close_socket(viewer_connection); | |
253 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
254 | goto end; | |
255 | } | |
256 | ||
257 | BT_ASSERT(received <= to_receive); | |
258 | total_received += received; | |
259 | to_receive -= received; | |
260 | ||
261 | } while (to_receive > 0); | |
262 | ||
263 | BT_ASSERT(total_received == len); | |
264 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
f79c2d7a FD |
265 | |
266 | end: | |
4164020e | 267 | return status; |
7cdc2bab MD |
268 | } |
269 | ||
f79c2d7a FD |
270 | /* |
271 | * This function sends a message to the Relay daemon. | |
272 | * If it send the message, it returns _OK, | |
273 | * If it's interrupted, it returns _INTERRUPTED, | |
274 | * otherwise, it returns _ERROR. | |
275 | */ | |
4164020e SM |
276 | static enum lttng_live_viewer_status |
277 | lttng_live_send(struct live_viewer_connection *viewer_connection, const void *buf, size_t len) | |
7cdc2bab | 278 | { |
4164020e SM |
279 | enum lttng_live_viewer_status status; |
280 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
281 | bt_self_component *self_comp = viewer_connection->self_comp; | |
282 | struct lttng_live_msg_iter *lttng_live_msg_iter = viewer_connection->lttng_live_msg_iter; | |
283 | BT_SOCKET sock = viewer_connection->control_sock; | |
284 | size_t to_send = len; | |
285 | ssize_t total_sent = 0; | |
286 | ||
287 | do { | |
288 | ssize_t sent = bt_socket_send_nosigpipe(sock, (char *) buf + total_sent, to_send); | |
289 | if (sent == BT_SOCKET_ERROR) { | |
290 | if (bt_socket_interrupted()) { | |
291 | if (lttng_live_graph_is_canceled(lttng_live_msg_iter)) { | |
292 | /* | |
293 | * This interruption was a SIGINT and | |
294 | * the graph is being teared down. | |
295 | */ | |
296 | status = LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED; | |
297 | lttng_live_msg_iter->was_interrupted = true; | |
298 | goto end; | |
299 | } else { | |
300 | /* | |
301 | * A signal was received, but the graph | |
302 | * is not being teared down. Carry on. | |
303 | */ | |
304 | continue; | |
305 | } | |
306 | } else { | |
307 | /* | |
308 | * For any other types of socket error, close | |
309 | * the socket and return an error. | |
310 | */ | |
311 | LTTNG_LIVE_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE_ERRNO( | |
312 | self_comp, self_comp_class, "Error sending to Relay", "."); | |
313 | ||
314 | viewer_connection_close_socket(viewer_connection); | |
315 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
316 | goto end; | |
317 | } | |
318 | } | |
319 | ||
320 | BT_ASSERT(sent <= to_send); | |
321 | total_sent += sent; | |
322 | to_send -= sent; | |
323 | ||
324 | } while (to_send > 0); | |
325 | ||
326 | BT_ASSERT(total_sent == len); | |
327 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
f79c2d7a FD |
328 | |
329 | end: | |
4164020e | 330 | return status; |
7cdc2bab MD |
331 | } |
332 | ||
4164020e | 333 | static int parse_url(struct live_viewer_connection *viewer_connection) |
7cdc2bab | 334 | { |
4164020e SM |
335 | char error_buf[256] = {0}; |
336 | bt_self_component *self_comp = viewer_connection->self_comp; | |
337 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
dd420a9b | 338 | struct bt_common_lttng_live_url_parts lttng_live_url_parts = {}; |
4164020e SM |
339 | int ret = -1; |
340 | const char *path = viewer_connection->url->str; | |
341 | ||
342 | if (!path) { | |
343 | goto end; | |
344 | } | |
345 | ||
346 | lttng_live_url_parts = bt_common_parse_lttng_live_url(path, error_buf, sizeof(error_buf)); | |
347 | if (!lttng_live_url_parts.proto) { | |
348 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
349 | "Invalid LTTng live URL format: %s", error_buf); | |
350 | goto end; | |
351 | } | |
352 | viewer_connection->proto = lttng_live_url_parts.proto; | |
353 | lttng_live_url_parts.proto = NULL; | |
354 | ||
355 | viewer_connection->relay_hostname = lttng_live_url_parts.hostname; | |
356 | lttng_live_url_parts.hostname = NULL; | |
357 | ||
358 | if (lttng_live_url_parts.port >= 0) { | |
359 | viewer_connection->port = lttng_live_url_parts.port; | |
360 | } else { | |
361 | viewer_connection->port = LTTNG_DEFAULT_NETWORK_VIEWER_PORT; | |
362 | } | |
363 | ||
364 | viewer_connection->target_hostname = lttng_live_url_parts.target_hostname; | |
365 | lttng_live_url_parts.target_hostname = NULL; | |
366 | ||
367 | if (lttng_live_url_parts.session_name) { | |
368 | viewer_connection->session_name = lttng_live_url_parts.session_name; | |
369 | lttng_live_url_parts.session_name = NULL; | |
370 | } | |
371 | ||
372 | ret = 0; | |
7cdc2bab MD |
373 | |
374 | end: | |
4164020e SM |
375 | bt_common_destroy_lttng_live_url_parts(<tng_live_url_parts); |
376 | return ret; | |
7cdc2bab MD |
377 | } |
378 | ||
4164020e SM |
379 | static enum lttng_live_viewer_status |
380 | lttng_live_handshake(struct live_viewer_connection *viewer_connection) | |
7cdc2bab | 381 | { |
4164020e SM |
382 | struct lttng_viewer_cmd cmd; |
383 | struct lttng_viewer_connect connect; | |
384 | enum lttng_live_viewer_status status; | |
385 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
386 | bt_self_component *self_comp = viewer_connection->self_comp; | |
387 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(connect); | |
388 | char cmd_buf[cmd_buf_len]; | |
389 | ||
390 | BT_COMP_OR_COMP_CLASS_LOGD( | |
391 | self_comp, self_comp_class, | |
392 | "Handshaking with the relay daemon: cmd=%s, major-version=%u, minor-version=%u", | |
393 | lttng_viewer_command_string(LTTNG_VIEWER_CONNECT), LTTNG_LIVE_MAJOR, LTTNG_LIVE_MINOR); | |
394 | ||
395 | cmd.cmd = htobe32(LTTNG_VIEWER_CONNECT); | |
396 | cmd.data_size = htobe64((uint64_t) sizeof(connect)); | |
397 | cmd.cmd_version = htobe32(0); | |
398 | ||
399 | connect.viewer_session_id = -1ULL; /* will be set on recv */ | |
400 | connect.major = htobe32(LTTNG_LIVE_MAJOR); | |
401 | connect.minor = htobe32(LTTNG_LIVE_MINOR); | |
402 | connect.type = htobe32(LTTNG_VIEWER_CLIENT_COMMAND); | |
403 | ||
404 | /* | |
405 | * Merge the cmd and connection request to prevent a write-write | |
406 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
407 | * second write to be performed quickly in presence of Nagle's algorithm | |
408 | */ | |
409 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
410 | memcpy(cmd_buf + sizeof(cmd), &connect, sizeof(connect)); | |
411 | ||
412 | status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); | |
413 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
414 | viewer_handle_send_status(self_comp, self_comp_class, status, "viewer connect command"); | |
415 | goto end; | |
416 | } | |
417 | ||
418 | status = lttng_live_recv(viewer_connection, &connect, sizeof(connect)); | |
419 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
420 | viewer_handle_recv_status(self_comp, self_comp_class, status, "viewer connect reply"); | |
421 | goto end; | |
422 | } | |
423 | ||
424 | BT_COMP_OR_COMP_CLASS_LOGI(self_comp, self_comp_class, "Received viewer session ID : %" PRIu64, | |
425 | (uint64_t) be64toh(connect.viewer_session_id)); | |
426 | BT_COMP_OR_COMP_CLASS_LOGI(self_comp, self_comp_class, "Relayd version : %u.%u", | |
427 | be32toh(connect.major), be32toh(connect.minor)); | |
428 | ||
429 | if (LTTNG_LIVE_MAJOR != be32toh(connect.major)) { | |
430 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
431 | "Incompatible lttng-relayd protocol"); | |
432 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
433 | goto end; | |
434 | } | |
435 | /* Use the smallest protocol version implemented. */ | |
436 | if (LTTNG_LIVE_MINOR > be32toh(connect.minor)) { | |
437 | viewer_connection->minor = be32toh(connect.minor); | |
438 | } else { | |
439 | viewer_connection->minor = LTTNG_LIVE_MINOR; | |
440 | } | |
441 | viewer_connection->major = LTTNG_LIVE_MAJOR; | |
442 | ||
443 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
444 | ||
445 | goto end; | |
f79c2d7a FD |
446 | |
447 | end: | |
4164020e | 448 | return status; |
7cdc2bab MD |
449 | } |
450 | ||
4164020e SM |
451 | static enum lttng_live_viewer_status |
452 | lttng_live_connect_viewer(struct live_viewer_connection *viewer_connection) | |
7cdc2bab | 453 | { |
4164020e SM |
454 | struct hostent *host; |
455 | struct sockaddr_in server_addr; | |
456 | enum lttng_live_viewer_status status; | |
457 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
458 | bt_self_component *self_comp = viewer_connection->self_comp; | |
459 | ||
460 | if (parse_url(viewer_connection)) { | |
461 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, "Failed to parse URL"); | |
462 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
463 | goto error; | |
464 | } | |
465 | ||
466 | BT_COMP_OR_COMP_CLASS_LOGD( | |
467 | self_comp, self_comp_class, | |
468 | "Connecting to hostname : %s, port : %d, " | |
469 | "target hostname : %s, session name : %s, proto : %s", | |
470 | viewer_connection->relay_hostname->str, viewer_connection->port, | |
471 | !viewer_connection->target_hostname ? "<none>" : viewer_connection->target_hostname->str, | |
472 | !viewer_connection->session_name ? "<none>" : viewer_connection->session_name->str, | |
473 | viewer_connection->proto->str); | |
474 | ||
475 | host = gethostbyname(viewer_connection->relay_hostname->str); | |
476 | if (!host) { | |
477 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
478 | "Cannot lookup hostname: hostname=\"%s\"", | |
479 | viewer_connection->relay_hostname->str); | |
480 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
481 | goto error; | |
482 | } | |
483 | ||
484 | if ((viewer_connection->control_sock = socket(AF_INET, SOCK_STREAM, 0)) == BT_INVALID_SOCKET) { | |
485 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
486 | "Socket creation failed: %s", bt_socket_errormsg()); | |
487 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
488 | goto error; | |
489 | } | |
490 | ||
491 | server_addr.sin_family = AF_INET; | |
492 | server_addr.sin_port = htons(viewer_connection->port); | |
493 | server_addr.sin_addr = *((struct in_addr *) host->h_addr); | |
494 | memset(&(server_addr.sin_zero), 0, 8); | |
495 | ||
496 | if (connect(viewer_connection->control_sock, (struct sockaddr *) &server_addr, | |
497 | sizeof(struct sockaddr)) == BT_SOCKET_ERROR) { | |
498 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, "Connection failed: %s", | |
499 | bt_socket_errormsg()); | |
500 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
501 | goto error; | |
502 | } | |
503 | ||
504 | status = lttng_live_handshake(viewer_connection); | |
505 | ||
506 | /* | |
507 | * Only print error and append cause in case of error. not in case of | |
508 | * interruption. | |
509 | */ | |
510 | if (status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
511 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
512 | "Viewer handshake failed"); | |
513 | goto error; | |
514 | } else if (status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { | |
515 | goto end; | |
516 | } | |
517 | ||
518 | goto end; | |
7cdc2bab MD |
519 | |
520 | error: | |
4164020e SM |
521 | if (viewer_connection->control_sock != BT_INVALID_SOCKET) { |
522 | if (bt_socket_close(viewer_connection->control_sock) == BT_SOCKET_ERROR) { | |
523 | BT_COMP_OR_COMP_CLASS_LOGW(self_comp, self_comp_class, "Error closing socket: %s.", | |
524 | bt_socket_errormsg()); | |
525 | } | |
526 | } | |
527 | viewer_connection->control_sock = BT_INVALID_SOCKET; | |
f79c2d7a | 528 | end: |
4164020e | 529 | return status; |
7cdc2bab MD |
530 | } |
531 | ||
4164020e | 532 | static void lttng_live_disconnect_viewer(struct live_viewer_connection *viewer_connection) |
7cdc2bab | 533 | { |
4164020e SM |
534 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; |
535 | bt_self_component *self_comp = viewer_connection->self_comp; | |
536 | ||
537 | if (viewer_connection->control_sock == BT_INVALID_SOCKET) { | |
538 | return; | |
539 | } | |
540 | if (bt_socket_close(viewer_connection->control_sock) == BT_SOCKET_ERROR) { | |
541 | BT_COMP_OR_COMP_CLASS_LOGW(self_comp, self_comp_class, "Error closing socket: %s", | |
542 | bt_socket_errormsg()); | |
543 | viewer_connection->control_sock = BT_INVALID_SOCKET; | |
544 | } | |
7cdc2bab MD |
545 | } |
546 | ||
4164020e SM |
547 | static int list_update_session(bt_value *results, const struct lttng_viewer_session *session, |
548 | bool *_found, struct live_viewer_connection *viewer_connection) | |
7cdc2bab | 549 | { |
4164020e SM |
550 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; |
551 | bt_self_component *self_comp = viewer_connection->self_comp; | |
552 | int ret = 0; | |
553 | uint64_t i, len; | |
554 | bt_value *map = NULL; | |
555 | bt_value *hostname = NULL; | |
556 | bt_value *session_name = NULL; | |
557 | bt_value *btval = NULL; | |
558 | bool found = false; | |
559 | ||
560 | len = bt_value_array_get_length(results); | |
561 | for (i = 0; i < len; i++) { | |
562 | const char *hostname_str = NULL; | |
563 | const char *session_name_str = NULL; | |
564 | ||
565 | map = bt_value_array_borrow_element_by_index(results, i); | |
566 | hostname = bt_value_map_borrow_entry_value(map, "target-hostname"); | |
567 | if (!hostname) { | |
568 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
569 | "Error borrowing \"target-hostname\" entry."); | |
570 | ret = -1; | |
571 | goto end; | |
572 | } | |
573 | session_name = bt_value_map_borrow_entry_value(map, "session-name"); | |
574 | if (!session_name) { | |
575 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
576 | "Error borrowing \"session-name\" entry."); | |
577 | ret = -1; | |
578 | goto end; | |
579 | } | |
580 | hostname_str = bt_value_string_get(hostname); | |
581 | session_name_str = bt_value_string_get(session_name); | |
582 | ||
583 | if (strcmp(session->hostname, hostname_str) == 0 && | |
584 | strcmp(session->session_name, session_name_str) == 0) { | |
585 | int64_t val; | |
586 | uint32_t streams = be32toh(session->streams); | |
587 | uint32_t clients = be32toh(session->clients); | |
588 | ||
589 | found = true; | |
590 | ||
591 | btval = bt_value_map_borrow_entry_value(map, "stream-count"); | |
592 | if (!btval) { | |
593 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
594 | "Error borrowing \"stream-count\" entry."); | |
595 | ret = -1; | |
596 | goto end; | |
597 | } | |
598 | val = bt_value_integer_unsigned_get(btval); | |
599 | /* sum */ | |
600 | val += streams; | |
601 | bt_value_integer_unsigned_set(btval, val); | |
602 | ||
603 | btval = bt_value_map_borrow_entry_value(map, "client-count"); | |
604 | if (!btval) { | |
605 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
606 | "Error borrowing \"client-count\" entry."); | |
607 | ret = -1; | |
608 | goto end; | |
609 | } | |
610 | val = bt_value_integer_unsigned_get(btval); | |
611 | /* max */ | |
612 | val = bt_max_t(int64_t, clients, val); | |
613 | bt_value_integer_unsigned_set(btval, val); | |
614 | } | |
615 | ||
616 | if (found) { | |
617 | break; | |
618 | } | |
619 | } | |
7cdc2bab | 620 | end: |
4164020e SM |
621 | *_found = found; |
622 | return ret; | |
7cdc2bab MD |
623 | } |
624 | ||
4164020e SM |
625 | static int list_append_session(bt_value *results, GString *base_url, |
626 | const struct lttng_viewer_session *session, | |
627 | struct live_viewer_connection *viewer_connection) | |
7cdc2bab | 628 | { |
4164020e SM |
629 | int ret = 0; |
630 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
631 | bt_value_map_insert_entry_status insert_status; | |
632 | bt_value_array_append_element_status append_status; | |
633 | bt_value *map = NULL; | |
634 | GString *url = NULL; | |
635 | bool found = false; | |
636 | ||
637 | /* | |
638 | * If the session already exists, add the stream count to it, | |
639 | * and do max of client counts. | |
640 | */ | |
641 | ret = list_update_session(results, session, &found, viewer_connection); | |
642 | if (ret || found) { | |
643 | goto end; | |
644 | } | |
645 | ||
646 | map = bt_value_map_create(); | |
647 | if (!map) { | |
648 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error creating map value."); | |
649 | ret = -1; | |
650 | goto end; | |
651 | } | |
652 | ||
653 | if (base_url->len < 1) { | |
654 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error: base_url length smaller than 1."); | |
655 | ret = -1; | |
656 | goto end; | |
657 | } | |
658 | /* | |
659 | * key = "url", | |
660 | * value = <string>, | |
661 | */ | |
662 | url = g_string_new(base_url->str); | |
663 | g_string_append(url, "/host/"); | |
664 | g_string_append(url, session->hostname); | |
665 | g_string_append_c(url, '/'); | |
666 | g_string_append(url, session->session_name); | |
667 | ||
668 | insert_status = bt_value_map_insert_string_entry(map, "url", url->str); | |
669 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
670 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error inserting \"url\" entry."); | |
671 | ret = -1; | |
672 | goto end; | |
673 | } | |
674 | ||
675 | /* | |
676 | * key = "target-hostname", | |
677 | * value = <string>, | |
678 | */ | |
679 | insert_status = bt_value_map_insert_string_entry(map, "target-hostname", session->hostname); | |
680 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
681 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, | |
682 | "Error inserting \"target-hostname\" entry."); | |
683 | ret = -1; | |
684 | goto end; | |
685 | } | |
686 | ||
687 | /* | |
688 | * key = "session-name", | |
689 | * value = <string>, | |
690 | */ | |
691 | insert_status = bt_value_map_insert_string_entry(map, "session-name", session->session_name); | |
692 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
693 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error inserting \"session-name\" entry."); | |
694 | ret = -1; | |
695 | goto end; | |
696 | } | |
697 | ||
698 | /* | |
699 | * key = "timer-us", | |
700 | * value = <integer>, | |
701 | */ | |
702 | { | |
703 | uint32_t live_timer = be32toh(session->live_timer); | |
704 | ||
705 | insert_status = bt_value_map_insert_unsigned_integer_entry(map, "timer-us", live_timer); | |
706 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
707 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error inserting \"timer-us\" entry."); | |
708 | ret = -1; | |
709 | goto end; | |
710 | } | |
711 | } | |
712 | ||
713 | /* | |
714 | * key = "stream-count", | |
715 | * value = <integer>, | |
716 | */ | |
717 | { | |
718 | uint32_t streams = be32toh(session->streams); | |
719 | ||
720 | insert_status = bt_value_map_insert_unsigned_integer_entry(map, "stream-count", streams); | |
721 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
722 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, | |
723 | "Error inserting \"stream-count\" entry."); | |
724 | ret = -1; | |
725 | goto end; | |
726 | } | |
727 | } | |
728 | ||
729 | /* | |
730 | * key = "client-count", | |
731 | * value = <integer>, | |
732 | */ | |
733 | { | |
734 | uint32_t clients = be32toh(session->clients); | |
735 | ||
736 | insert_status = bt_value_map_insert_unsigned_integer_entry(map, "client-count", clients); | |
737 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
738 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, | |
739 | "Error inserting \"client-count\" entry."); | |
740 | ret = -1; | |
741 | goto end; | |
742 | } | |
743 | } | |
744 | ||
745 | append_status = bt_value_array_append_element(results, map); | |
746 | if (append_status != BT_VALUE_ARRAY_APPEND_ELEMENT_STATUS_OK) { | |
747 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error appending map to results."); | |
748 | ret = -1; | |
749 | } | |
14f28187 | 750 | |
7cdc2bab | 751 | end: |
4164020e SM |
752 | if (url) { |
753 | g_string_free(url, true); | |
754 | } | |
755 | BT_VALUE_PUT_REF_AND_RESET(map); | |
756 | return ret; | |
7cdc2bab MD |
757 | } |
758 | ||
759 | /* | |
760 | * Data structure returned: | |
761 | * | |
762 | * { | |
763 | * <array> = { | |
764 | * [n] = { | |
765 | * <map> = { | |
766 | * { | |
767 | * key = "url", | |
768 | * value = <string>, | |
769 | * }, | |
770 | * { | |
771 | * key = "target-hostname", | |
772 | * value = <string>, | |
773 | * }, | |
774 | * { | |
775 | * key = "session-name", | |
776 | * value = <string>, | |
777 | * }, | |
778 | * { | |
779 | * key = "timer-us", | |
780 | * value = <integer>, | |
781 | * }, | |
782 | * { | |
783 | * key = "stream-count", | |
784 | * value = <integer>, | |
785 | * }, | |
786 | * { | |
787 | * key = "client-count", | |
788 | * value = <integer>, | |
789 | * }, | |
790 | * }, | |
791 | * } | |
792 | * } | |
793 | */ | |
794 | ||
4164020e SM |
795 | bt_component_class_query_method_status |
796 | live_viewer_connection_list_sessions(struct live_viewer_connection *viewer_connection, | |
797 | const bt_value **user_result) | |
7cdc2bab | 798 | { |
4164020e SM |
799 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; |
800 | bt_component_class_query_method_status status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_OK; | |
801 | bt_value *result = NULL; | |
802 | enum lttng_live_viewer_status viewer_status; | |
803 | struct lttng_viewer_cmd cmd; | |
804 | struct lttng_viewer_list_sessions list; | |
805 | uint32_t i, sessions_count; | |
806 | ||
807 | result = bt_value_array_create(); | |
808 | if (!result) { | |
809 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error creating array"); | |
810 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_MEMORY_ERROR; | |
811 | goto error; | |
812 | } | |
813 | ||
814 | BT_LOGD("Requesting list of sessions: cmd=%s", | |
815 | lttng_viewer_command_string(LTTNG_VIEWER_LIST_SESSIONS)); | |
816 | ||
817 | cmd.cmd = htobe32(LTTNG_VIEWER_LIST_SESSIONS); | |
818 | cmd.data_size = htobe64((uint64_t) 0); | |
819 | cmd.cmd_version = htobe32(0); | |
820 | ||
821 | viewer_status = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); | |
822 | if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
823 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error sending list sessions command"); | |
824 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; | |
825 | goto error; | |
826 | } else if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { | |
827 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_AGAIN; | |
828 | goto error; | |
829 | } | |
830 | ||
831 | viewer_status = lttng_live_recv(viewer_connection, &list, sizeof(list)); | |
832 | if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
833 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error receiving session list"); | |
834 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; | |
835 | goto error; | |
836 | } else if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { | |
837 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_AGAIN; | |
838 | goto error; | |
839 | } | |
840 | ||
841 | sessions_count = be32toh(list.sessions_count); | |
842 | for (i = 0; i < sessions_count; i++) { | |
843 | struct lttng_viewer_session lsession; | |
844 | ||
845 | viewer_status = lttng_live_recv(viewer_connection, &lsession, sizeof(lsession)); | |
846 | if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
847 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error receiving session:"); | |
848 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; | |
849 | goto error; | |
850 | } else if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { | |
851 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_AGAIN; | |
852 | goto error; | |
853 | } | |
854 | ||
855 | lsession.hostname[LTTNG_VIEWER_HOST_NAME_MAX - 1] = '\0'; | |
856 | lsession.session_name[LTTNG_VIEWER_NAME_MAX - 1] = '\0'; | |
857 | if (list_append_session(result, viewer_connection->url, &lsession, viewer_connection)) { | |
858 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error appending session"); | |
859 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; | |
860 | goto error; | |
861 | } | |
862 | } | |
863 | ||
864 | *user_result = result; | |
865 | goto end; | |
7cdc2bab | 866 | error: |
4164020e | 867 | BT_VALUE_PUT_REF_AND_RESET(result); |
7cdc2bab | 868 | end: |
4164020e | 869 | return status; |
7cdc2bab MD |
870 | } |
871 | ||
4164020e SM |
872 | static enum lttng_live_viewer_status |
873 | lttng_live_query_session_ids(struct lttng_live_msg_iter *lttng_live_msg_iter) | |
7cdc2bab | 874 | { |
4164020e SM |
875 | struct lttng_viewer_cmd cmd; |
876 | struct lttng_viewer_list_sessions list; | |
877 | struct lttng_viewer_session lsession; | |
878 | uint32_t i, sessions_count; | |
879 | uint64_t session_id; | |
880 | enum lttng_live_viewer_status status; | |
881 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
882 | bt_self_component *self_comp = viewer_connection->self_comp; | |
883 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
884 | ||
885 | BT_COMP_LOGD("Asking the relay daemon for the list of sessions: cmd=%s", | |
886 | lttng_viewer_command_string(LTTNG_VIEWER_LIST_SESSIONS)); | |
887 | ||
888 | cmd.cmd = htobe32(LTTNG_VIEWER_LIST_SESSIONS); | |
889 | cmd.data_size = htobe64((uint64_t) 0); | |
890 | cmd.cmd_version = htobe32(0); | |
891 | ||
892 | status = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); | |
893 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
894 | viewer_handle_send_status(self_comp, self_comp_class, status, "list sessions command"); | |
895 | goto end; | |
896 | } | |
897 | ||
898 | status = lttng_live_recv(viewer_connection, &list, sizeof(list)); | |
899 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
900 | viewer_handle_recv_status(self_comp, self_comp_class, status, "session list reply"); | |
901 | goto end; | |
902 | } | |
903 | ||
904 | sessions_count = be32toh(list.sessions_count); | |
905 | for (i = 0; i < sessions_count; i++) { | |
906 | status = lttng_live_recv(viewer_connection, &lsession, sizeof(lsession)); | |
907 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
908 | viewer_handle_recv_status(self_comp, self_comp_class, status, "session reply"); | |
909 | goto end; | |
910 | } | |
911 | lsession.hostname[LTTNG_VIEWER_HOST_NAME_MAX - 1] = '\0'; | |
912 | lsession.session_name[LTTNG_VIEWER_NAME_MAX - 1] = '\0'; | |
913 | session_id = be64toh(lsession.id); | |
914 | ||
915 | BT_COMP_LOGI("Adding session to internal list: " | |
916 | "session-id=%" PRIu64 ", hostname=\"%s\", session-name=\"%s\"", | |
917 | session_id, lsession.hostname, lsession.session_name); | |
918 | ||
919 | if ((strncmp(lsession.session_name, viewer_connection->session_name->str, | |
920 | LTTNG_VIEWER_NAME_MAX) == 0) && | |
921 | (strncmp(lsession.hostname, viewer_connection->target_hostname->str, | |
922 | LTTNG_VIEWER_HOST_NAME_MAX) == 0)) { | |
923 | if (lttng_live_add_session(lttng_live_msg_iter, session_id, lsession.hostname, | |
924 | lsession.session_name)) { | |
925 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Failed to add live session"); | |
926 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
927 | goto end; | |
928 | } | |
929 | } | |
930 | } | |
931 | ||
932 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
7cdc2bab | 933 | |
f79c2d7a | 934 | end: |
4164020e | 935 | return status; |
7cdc2bab MD |
936 | } |
937 | ||
4164020e SM |
938 | enum lttng_live_viewer_status |
939 | lttng_live_create_viewer_session(struct lttng_live_msg_iter *lttng_live_msg_iter) | |
7cdc2bab | 940 | { |
4164020e SM |
941 | struct lttng_viewer_cmd cmd; |
942 | struct lttng_viewer_create_session_response resp; | |
943 | enum lttng_live_viewer_status status; | |
944 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
945 | bt_self_component *self_comp = viewer_connection->self_comp; | |
946 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
947 | ||
948 | BT_COMP_OR_COMP_CLASS_LOGD(self_comp, self_comp_class, "Creating a viewer session: cmd=%s", | |
949 | lttng_viewer_command_string(LTTNG_VIEWER_CREATE_SESSION)); | |
950 | ||
951 | cmd.cmd = htobe32(LTTNG_VIEWER_CREATE_SESSION); | |
952 | cmd.data_size = htobe64((uint64_t) 0); | |
953 | cmd.cmd_version = htobe32(0); | |
954 | ||
955 | status = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); | |
956 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
957 | viewer_handle_send_status(self_comp, self_comp_class, status, "create session command"); | |
958 | goto end; | |
959 | } | |
960 | ||
961 | status = lttng_live_recv(viewer_connection, &resp, sizeof(resp)); | |
962 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
963 | viewer_handle_recv_status(self_comp, self_comp_class, status, "create session reply"); | |
964 | goto end; | |
965 | } | |
966 | ||
967 | if (be32toh(resp.status) != LTTNG_VIEWER_CREATE_SESSION_OK) { | |
968 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Error creating viewer session"); | |
969 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
970 | goto end; | |
971 | } | |
972 | ||
973 | status = lttng_live_query_session_ids(lttng_live_msg_iter); | |
974 | if (status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
975 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Failed to query live viewer session ids"); | |
976 | goto end; | |
977 | } else if (status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { | |
978 | goto end; | |
979 | } | |
7cdc2bab | 980 | |
f79c2d7a | 981 | end: |
4164020e | 982 | return status; |
7cdc2bab MD |
983 | } |
984 | ||
4164020e SM |
985 | static enum lttng_live_viewer_status receive_streams(struct lttng_live_session *session, |
986 | uint32_t stream_count, | |
987 | bt_self_message_iterator *self_msg_iter) | |
7cdc2bab | 988 | { |
4164020e SM |
989 | uint32_t i; |
990 | struct lttng_live_msg_iter *lttng_live_msg_iter = session->lttng_live_msg_iter; | |
991 | enum lttng_live_viewer_status status; | |
992 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
993 | bt_self_component *self_comp = viewer_connection->self_comp; | |
994 | ||
995 | BT_COMP_LOGI("Getting %" PRIu32 " new streams", stream_count); | |
996 | for (i = 0; i < stream_count; i++) { | |
997 | struct lttng_viewer_stream stream; | |
998 | struct lttng_live_stream_iterator *live_stream; | |
999 | uint64_t stream_id; | |
1000 | uint64_t ctf_trace_id; | |
1001 | ||
1002 | status = lttng_live_recv(viewer_connection, &stream, sizeof(stream)); | |
1003 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1004 | viewer_handle_recv_status(self_comp, NULL, status, "stream reply"); | |
1005 | goto end; | |
1006 | } | |
1007 | stream.path_name[LTTNG_VIEWER_PATH_MAX - 1] = '\0'; | |
1008 | stream.channel_name[LTTNG_VIEWER_NAME_MAX - 1] = '\0'; | |
1009 | stream_id = be64toh(stream.id); | |
1010 | ctf_trace_id = be64toh(stream.ctf_trace_id); | |
1011 | ||
1012 | if (stream.metadata_flag) { | |
1013 | BT_COMP_LOGI(" metadata stream %" PRIu64 " : %s/%s", stream_id, stream.path_name, | |
1014 | stream.channel_name); | |
44bd6303 | 1015 | if (lttng_live_metadata_create_stream(session, ctf_trace_id, stream_id)) { |
4164020e SM |
1016 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Error creating metadata stream"); |
1017 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1018 | goto end; | |
1019 | } | |
1020 | session->lazy_stream_msg_init = true; | |
1021 | } else { | |
1022 | BT_COMP_LOGI(" stream %" PRIu64 " : %s/%s", stream_id, stream.path_name, | |
1023 | stream.channel_name); | |
1024 | live_stream = | |
1025 | lttng_live_stream_iterator_create(session, ctf_trace_id, stream_id, self_msg_iter); | |
1026 | if (!live_stream) { | |
1027 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Error creating stream"); | |
1028 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1029 | goto end; | |
1030 | } | |
1031 | } | |
1032 | } | |
1033 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
7cdc2bab | 1034 | |
f79c2d7a | 1035 | end: |
4164020e | 1036 | return status; |
7cdc2bab MD |
1037 | } |
1038 | ||
4164020e SM |
1039 | enum lttng_live_viewer_status lttng_live_session_attach(struct lttng_live_session *session, |
1040 | bt_self_message_iterator *self_msg_iter) | |
7cdc2bab | 1041 | { |
4164020e SM |
1042 | struct lttng_viewer_cmd cmd; |
1043 | enum lttng_live_viewer_status status; | |
1044 | struct lttng_viewer_attach_session_request rq; | |
1045 | struct lttng_viewer_attach_session_response rp; | |
1046 | struct lttng_live_msg_iter *lttng_live_msg_iter = session->lttng_live_msg_iter; | |
1047 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
1048 | bt_self_component *self_comp = viewer_connection->self_comp; | |
1049 | uint64_t session_id = session->id; | |
1050 | uint32_t streams_count; | |
1051 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); | |
1052 | char cmd_buf[cmd_buf_len]; | |
1053 | ||
1054 | BT_COMP_LOGD("Attaching to session: cmd=%s, session-id=%" PRIu64 ", seek=%s", | |
1055 | lttng_viewer_command_string(LTTNG_VIEWER_ATTACH_SESSION), session_id, | |
1056 | lttng_viewer_seek_string(LTTNG_VIEWER_SEEK_LAST)); | |
1057 | ||
1058 | cmd.cmd = htobe32(LTTNG_VIEWER_ATTACH_SESSION); | |
1059 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1060 | cmd.cmd_version = htobe32(0); | |
1061 | ||
1062 | memset(&rq, 0, sizeof(rq)); | |
1063 | rq.session_id = htobe64(session_id); | |
1064 | // TODO: add cmd line parameter to select seek beginning | |
1065 | // rq.seek = htobe32(LTTNG_VIEWER_SEEK_BEGINNING); | |
1066 | rq.seek = htobe32(LTTNG_VIEWER_SEEK_LAST); | |
1067 | ||
1068 | /* | |
1069 | * Merge the cmd and connection request to prevent a write-write | |
1070 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1071 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1072 | */ | |
1073 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1074 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
1075 | status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); | |
1076 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1077 | viewer_handle_send_status(self_comp, NULL, status, "attach session command"); | |
1078 | goto end; | |
1079 | } | |
1080 | ||
1081 | status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); | |
1082 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1083 | viewer_handle_recv_status(self_comp, NULL, status, "attach session reply"); | |
1084 | goto end; | |
1085 | } | |
1086 | ||
1087 | streams_count = be32toh(rp.streams_count); | |
1088 | switch (be32toh(rp.status)) { | |
1089 | case LTTNG_VIEWER_ATTACH_OK: | |
1090 | break; | |
1091 | case LTTNG_VIEWER_ATTACH_UNK: | |
1092 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Session id %" PRIu64 " is unknown", session_id); | |
1093 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1094 | goto end; | |
1095 | case LTTNG_VIEWER_ATTACH_ALREADY: | |
1096 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "There is already a viewer attached to this session"); | |
1097 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1098 | goto end; | |
1099 | case LTTNG_VIEWER_ATTACH_NOT_LIVE: | |
1100 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Not a live session"); | |
1101 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1102 | goto end; | |
1103 | case LTTNG_VIEWER_ATTACH_SEEK_ERR: | |
1104 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Wrong seek parameter"); | |
1105 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1106 | goto end; | |
1107 | default: | |
1108 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Unknown attach return code %u", be32toh(rp.status)); | |
1109 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1110 | goto end; | |
1111 | } | |
1112 | ||
1113 | /* We receive the initial list of streams. */ | |
1114 | status = receive_streams(session, streams_count, self_msg_iter); | |
1115 | switch (status) { | |
1116 | case LTTNG_LIVE_VIEWER_STATUS_OK: | |
1117 | break; | |
1118 | case LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED: | |
1119 | goto end; | |
1120 | case LTTNG_LIVE_VIEWER_STATUS_ERROR: | |
1121 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Error receiving streams"); | |
1122 | goto end; | |
1123 | default: | |
1124 | bt_common_abort(); | |
1125 | } | |
1126 | ||
1127 | session->attached = true; | |
1128 | session->new_streams_needed = false; | |
7cdc2bab | 1129 | |
eee8e741 | 1130 | end: |
4164020e | 1131 | return status; |
7cdc2bab MD |
1132 | } |
1133 | ||
4164020e | 1134 | enum lttng_live_viewer_status lttng_live_session_detach(struct lttng_live_session *session) |
7cdc2bab | 1135 | { |
4164020e SM |
1136 | struct lttng_viewer_cmd cmd; |
1137 | enum lttng_live_viewer_status status; | |
1138 | struct lttng_viewer_detach_session_request rq; | |
1139 | struct lttng_viewer_detach_session_response rp; | |
1140 | struct lttng_live_msg_iter *lttng_live_msg_iter = session->lttng_live_msg_iter; | |
1141 | bt_self_component *self_comp = session->self_comp; | |
1142 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
1143 | uint64_t session_id = session->id; | |
1144 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); | |
1145 | char cmd_buf[cmd_buf_len]; | |
1146 | ||
1147 | /* | |
1148 | * The session might already be detached and the viewer socket might | |
1149 | * already been closed. This happens when calling this function when | |
1150 | * tearing down the graph after an error. | |
1151 | */ | |
1152 | if (!session->attached || viewer_connection->control_sock == BT_INVALID_SOCKET) { | |
1153 | return LTTNG_LIVE_VIEWER_STATUS_OK; | |
1154 | } | |
1155 | ||
1156 | BT_COMP_LOGD("Detaching from session: cmd=%s, session-id=%" PRIu64, | |
1157 | lttng_viewer_command_string(LTTNG_VIEWER_DETACH_SESSION), session_id); | |
1158 | ||
1159 | cmd.cmd = htobe32(LTTNG_VIEWER_DETACH_SESSION); | |
1160 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1161 | cmd.cmd_version = htobe32(0); | |
1162 | ||
1163 | memset(&rq, 0, sizeof(rq)); | |
1164 | rq.session_id = htobe64(session_id); | |
1165 | ||
1166 | /* | |
1167 | * Merge the cmd and connection request to prevent a write-write | |
1168 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1169 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1170 | */ | |
1171 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1172 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
1173 | status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); | |
1174 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1175 | viewer_handle_send_status(self_comp, NULL, status, "detach session command"); | |
1176 | goto end; | |
1177 | } | |
1178 | ||
1179 | status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); | |
1180 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1181 | viewer_handle_recv_status(self_comp, NULL, status, "detach session reply"); | |
1182 | goto end; | |
1183 | } | |
1184 | ||
1185 | switch (be32toh(rp.status)) { | |
1186 | case LTTNG_VIEWER_DETACH_SESSION_OK: | |
1187 | break; | |
1188 | case LTTNG_VIEWER_DETACH_SESSION_UNK: | |
1189 | BT_COMP_LOGW("Session id %" PRIu64 " is unknown", session_id); | |
1190 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1191 | goto end; | |
1192 | case LTTNG_VIEWER_DETACH_SESSION_ERR: | |
1193 | BT_COMP_LOGW("Error detaching session id %" PRIu64 "", session_id); | |
1194 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1195 | goto end; | |
1196 | default: | |
1197 | BT_COMP_LOGE("Unknown detach return code %u", be32toh(rp.status)); | |
1198 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1199 | goto end; | |
1200 | } | |
1201 | ||
1202 | session->attached = false; | |
1203 | ||
1204 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
7cdc2bab | 1205 | |
f79c2d7a | 1206 | end: |
4164020e | 1207 | return status; |
7cdc2bab MD |
1208 | } |
1209 | ||
4164020e SM |
1210 | enum lttng_live_get_one_metadata_status |
1211 | lttng_live_get_one_metadata_packet(struct lttng_live_trace *trace, FILE *fp, size_t *reply_len) | |
7cdc2bab | 1212 | { |
4164020e SM |
1213 | uint64_t len = 0; |
1214 | enum lttng_live_get_one_metadata_status status; | |
1215 | enum lttng_live_viewer_status viewer_status; | |
1216 | struct lttng_viewer_cmd cmd; | |
1217 | struct lttng_viewer_get_metadata rq; | |
1218 | struct lttng_viewer_metadata_packet rp; | |
1219 | gchar *data = NULL; | |
1220 | ssize_t writelen; | |
1221 | struct lttng_live_session *session = trace->session; | |
1222 | struct lttng_live_msg_iter *lttng_live_msg_iter = session->lttng_live_msg_iter; | |
1223 | struct lttng_live_metadata *metadata = trace->metadata; | |
1224 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
1225 | bt_self_component *self_comp = viewer_connection->self_comp; | |
1226 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); | |
1227 | char cmd_buf[cmd_buf_len]; | |
1228 | ||
1229 | BT_COMP_LOGD("Requesting new metadata for trace:" | |
1230 | "cmd=%s, trace-id=%" PRIu64 ", metadata-stream-id=%" PRIu64, | |
1231 | lttng_viewer_command_string(LTTNG_VIEWER_GET_METADATA), trace->id, | |
1232 | metadata->stream_id); | |
1233 | ||
1234 | rq.stream_id = htobe64(metadata->stream_id); | |
1235 | cmd.cmd = htobe32(LTTNG_VIEWER_GET_METADATA); | |
1236 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1237 | cmd.cmd_version = htobe32(0); | |
1238 | ||
1239 | /* | |
1240 | * Merge the cmd and connection request to prevent a write-write | |
1241 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1242 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1243 | */ | |
1244 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1245 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
1246 | viewer_status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); | |
1247 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1248 | viewer_handle_send_status(self_comp, NULL, viewer_status, "get metadata command"); | |
1249 | status = (enum lttng_live_get_one_metadata_status) viewer_status; | |
1250 | goto end; | |
1251 | } | |
1252 | ||
1253 | viewer_status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); | |
1254 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1255 | viewer_handle_recv_status(self_comp, NULL, viewer_status, "get metadata reply"); | |
1256 | status = (enum lttng_live_get_one_metadata_status) viewer_status; | |
1257 | goto end; | |
1258 | } | |
1259 | ||
1260 | switch (be32toh(rp.status)) { | |
1261 | case LTTNG_VIEWER_METADATA_OK: | |
1262 | BT_COMP_LOGD("Received get_metadata response: ok"); | |
1263 | break; | |
1264 | case LTTNG_VIEWER_NO_NEW_METADATA: | |
1265 | BT_COMP_LOGD("Received get_metadata response: no new"); | |
1266 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_END; | |
1267 | goto end; | |
1268 | case LTTNG_VIEWER_METADATA_ERR: | |
1269 | /* | |
1270 | * The Relayd cannot find this stream id. Maybe its | |
1271 | * gone already. This can happen in short lived UST app | |
1272 | * in a per-pid session. | |
1273 | */ | |
1274 | BT_COMP_LOGD("Received get_metadata response: error"); | |
1275 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_CLOSED; | |
1276 | goto end; | |
1277 | default: | |
1278 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Received get_metadata response: unknown"); | |
1279 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR; | |
1280 | goto end; | |
1281 | } | |
1282 | ||
1283 | len = be64toh(rp.len); | |
c5ce3927 FD |
1284 | if (len == 0) { |
1285 | /* | |
1286 | * We received a `LTTNG_VIEWER_METADATA_OK` with a packet | |
1287 | * length of 0. This means we must try again. This scenario | |
1288 | * arises when a clear command is performed on an lttng session. | |
1289 | */ | |
1290 | BT_COMP_LOGD( | |
1291 | "Expecting a metadata packet of size 0. Retry to get a packet from the relay."); | |
1292 | goto empty_metadata_packet_retry; | |
1293 | } | |
1294 | ||
4164020e SM |
1295 | BT_COMP_LOGD("Writing %" PRIu64 " bytes to metadata", len); |
1296 | if (len <= 0) { | |
1297 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Erroneous response length"); | |
1298 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR; | |
1299 | goto end; | |
1300 | } | |
1301 | ||
1302 | data = g_new0(gchar, len); | |
1303 | if (!data) { | |
1304 | BT_COMP_LOGE_APPEND_CAUSE_ERRNO(self_comp, "Failed to allocate data buffer", "."); | |
1305 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR; | |
1306 | goto end; | |
1307 | } | |
1308 | ||
1309 | viewer_status = lttng_live_recv(viewer_connection, data, len); | |
1310 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1311 | viewer_handle_recv_status(self_comp, NULL, viewer_status, "get metadata packet"); | |
1312 | status = (enum lttng_live_get_one_metadata_status) viewer_status; | |
1313 | goto end; | |
1314 | } | |
1315 | ||
1316 | /* | |
1317 | * Write the metadata to the file handle. | |
1318 | */ | |
1319 | writelen = fwrite(data, sizeof(uint8_t), len, fp); | |
1320 | if (writelen != len) { | |
1321 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Writing in the metadata file stream"); | |
1322 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR; | |
1323 | goto end; | |
1324 | } | |
1325 | ||
c5ce3927 | 1326 | empty_metadata_packet_retry: |
4164020e SM |
1327 | *reply_len = len; |
1328 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_OK; | |
c28512ab | 1329 | |
c28512ab | 1330 | end: |
4164020e SM |
1331 | g_free(data); |
1332 | return status; | |
7cdc2bab MD |
1333 | } |
1334 | ||
1335 | /* | |
1336 | * Assign the fields from a lttng_viewer_index to a packet_index. | |
1337 | */ | |
4164020e SM |
1338 | static void lttng_index_to_packet_index(struct lttng_viewer_index *lindex, |
1339 | struct packet_index *pindex) | |
7cdc2bab | 1340 | { |
4164020e SM |
1341 | BT_ASSERT(lindex); |
1342 | BT_ASSERT(pindex); | |
1343 | ||
1344 | pindex->offset = be64toh(lindex->offset); | |
1345 | pindex->packet_size = be64toh(lindex->packet_size); | |
1346 | pindex->content_size = be64toh(lindex->content_size); | |
1347 | pindex->ts_cycles.timestamp_begin = be64toh(lindex->timestamp_begin); | |
1348 | pindex->ts_cycles.timestamp_end = be64toh(lindex->timestamp_end); | |
1349 | pindex->events_discarded = be64toh(lindex->events_discarded); | |
7cdc2bab MD |
1350 | } |
1351 | ||
4164020e | 1352 | static void lttng_live_need_new_streams(struct lttng_live_msg_iter *lttng_live_msg_iter) |
36e94ad6 | 1353 | { |
4164020e SM |
1354 | uint64_t session_idx; |
1355 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
1356 | ||
1357 | for (session_idx = 0; session_idx < lttng_live_msg_iter->sessions->len; session_idx++) { | |
1358 | struct lttng_live_session *session = | |
1359 | (lttng_live_session *) g_ptr_array_index(lttng_live_msg_iter->sessions, session_idx); | |
1360 | BT_COMP_LOGD("Marking session as needing new streams: " | |
1361 | "session-id=%" PRIu64, | |
1362 | session->id); | |
1363 | session->new_streams_needed = true; | |
1364 | } | |
36e94ad6 FD |
1365 | } |
1366 | ||
4164020e SM |
1367 | enum lttng_live_iterator_status |
1368 | lttng_live_get_next_index(struct lttng_live_msg_iter *lttng_live_msg_iter, | |
1369 | struct lttng_live_stream_iterator *stream, struct packet_index *index) | |
7cdc2bab | 1370 | { |
4164020e SM |
1371 | struct lttng_viewer_cmd cmd; |
1372 | struct lttng_viewer_get_next_index rq; | |
1373 | enum lttng_live_viewer_status viewer_status; | |
1374 | struct lttng_viewer_index rp; | |
1375 | enum lttng_live_iterator_status status; | |
1376 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
1377 | bt_self_component *self_comp = viewer_connection->self_comp; | |
1378 | struct lttng_live_trace *trace = stream->trace; | |
1379 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); | |
1380 | char cmd_buf[cmd_buf_len]; | |
1381 | uint32_t flags, rp_status; | |
1382 | ||
1383 | BT_COMP_LOGD("Requesting next index for stream: cmd=%s, " | |
1384 | "viewer-stream-id=%" PRIu64, | |
1385 | lttng_viewer_command_string(LTTNG_VIEWER_GET_NEXT_INDEX), | |
1386 | stream->viewer_stream_id); | |
1387 | cmd.cmd = htobe32(LTTNG_VIEWER_GET_NEXT_INDEX); | |
1388 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1389 | cmd.cmd_version = htobe32(0); | |
1390 | ||
1391 | memset(&rq, 0, sizeof(rq)); | |
1392 | rq.stream_id = htobe64(stream->viewer_stream_id); | |
1393 | ||
1394 | /* | |
1395 | * Merge the cmd and connection request to prevent a write-write | |
1396 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1397 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1398 | */ | |
1399 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1400 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
1401 | ||
1402 | viewer_status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); | |
1403 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1404 | viewer_handle_send_status(self_comp, NULL, viewer_status, "get next index command"); | |
1405 | goto error; | |
1406 | } | |
1407 | ||
1408 | viewer_status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); | |
1409 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1410 | viewer_handle_recv_status(self_comp, NULL, viewer_status, "get next index reply"); | |
1411 | goto error; | |
1412 | } | |
1413 | ||
1414 | flags = be32toh(rp.flags); | |
1415 | rp_status = be32toh(rp.status); | |
1416 | ||
1417 | BT_COMP_LOGD("Received response from relay daemon: cmd=%s, response=%s", | |
1418 | lttng_viewer_command_string(LTTNG_VIEWER_GET_NEXT_INDEX), | |
1419 | lttng_viewer_next_index_return_code_string(rp_status)); | |
1420 | switch (rp_status) { | |
1421 | case LTTNG_VIEWER_INDEX_INACTIVE: | |
1422 | { | |
1423 | uint64_t ctf_stream_class_id; | |
1424 | ||
1425 | memset(index, 0, sizeof(struct packet_index)); | |
1426 | index->ts_cycles.timestamp_end = be64toh(rp.timestamp_end); | |
1427 | stream->current_inactivity_ts = index->ts_cycles.timestamp_end; | |
1428 | ctf_stream_class_id = be64toh(rp.stream_id); | |
1429 | if (stream->ctf_stream_class_id.is_set) { | |
1430 | BT_ASSERT(stream->ctf_stream_class_id.value == ctf_stream_class_id); | |
1431 | } else { | |
1432 | stream->ctf_stream_class_id.value = ctf_stream_class_id; | |
1433 | stream->ctf_stream_class_id.is_set = true; | |
1434 | } | |
1435 | lttng_live_stream_iterator_set_state(stream, LTTNG_LIVE_STREAM_QUIESCENT); | |
1436 | status = LTTNG_LIVE_ITERATOR_STATUS_OK; | |
1437 | break; | |
1438 | } | |
1439 | case LTTNG_VIEWER_INDEX_OK: | |
1440 | { | |
1441 | uint64_t ctf_stream_class_id; | |
1442 | ||
1443 | lttng_index_to_packet_index(&rp, index); | |
1444 | ctf_stream_class_id = be64toh(rp.stream_id); | |
1445 | if (stream->ctf_stream_class_id.is_set) { | |
1446 | BT_ASSERT(stream->ctf_stream_class_id.value == ctf_stream_class_id); | |
1447 | } else { | |
1448 | stream->ctf_stream_class_id.value = ctf_stream_class_id; | |
1449 | stream->ctf_stream_class_id.is_set = true; | |
1450 | } | |
1451 | ||
1452 | lttng_live_stream_iterator_set_state(stream, LTTNG_LIVE_STREAM_ACTIVE_DATA); | |
1453 | ||
1454 | if (flags & LTTNG_VIEWER_FLAG_NEW_METADATA) { | |
1455 | BT_COMP_LOGD("Marking trace as needing new metadata: " | |
1456 | "response=%s, response-flag=NEW_METADATA, trace-id=%" PRIu64, | |
1457 | lttng_viewer_next_index_return_code_string(rp_status), trace->id); | |
1458 | trace->metadata_stream_state = LTTNG_LIVE_METADATA_STREAM_STATE_NEEDED; | |
1459 | } | |
1460 | if (flags & LTTNG_VIEWER_FLAG_NEW_STREAM) { | |
1461 | BT_COMP_LOGD("Marking all sessions as possibly needing new streams: " | |
1462 | "response=%s, response-flag=NEW_STREAM", | |
1463 | lttng_viewer_next_index_return_code_string(rp_status)); | |
1464 | lttng_live_need_new_streams(lttng_live_msg_iter); | |
1465 | } | |
1466 | status = LTTNG_LIVE_ITERATOR_STATUS_OK; | |
1467 | break; | |
1468 | } | |
1469 | case LTTNG_VIEWER_INDEX_RETRY: | |
1470 | memset(index, 0, sizeof(struct packet_index)); | |
1471 | lttng_live_stream_iterator_set_state(stream, LTTNG_LIVE_STREAM_ACTIVE_NO_DATA); | |
1472 | status = LTTNG_LIVE_ITERATOR_STATUS_AGAIN; | |
1473 | goto end; | |
1474 | case LTTNG_VIEWER_INDEX_HUP: | |
1475 | memset(index, 0, sizeof(struct packet_index)); | |
1476 | index->offset = EOF; | |
1477 | lttng_live_stream_iterator_set_state(stream, LTTNG_LIVE_STREAM_EOF); | |
1478 | stream->has_stream_hung_up = true; | |
1479 | status = LTTNG_LIVE_ITERATOR_STATUS_END; | |
1480 | break; | |
1481 | case LTTNG_VIEWER_INDEX_ERR: | |
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 | default: | |
1487 | BT_COMP_LOGD("Received get_next_index response: unknown value"); | |
1488 | memset(index, 0, sizeof(struct packet_index)); | |
1489 | lttng_live_stream_iterator_set_state(stream, LTTNG_LIVE_STREAM_ACTIVE_NO_DATA); | |
1490 | status = LTTNG_LIVE_ITERATOR_STATUS_ERROR; | |
1491 | goto end; | |
1492 | } | |
1493 | goto end; | |
7cdc2bab MD |
1494 | |
1495 | error: | |
4164020e | 1496 | status = viewer_status_to_live_iterator_status(viewer_status); |
f79c2d7a | 1497 | end: |
4164020e | 1498 | return status; |
7cdc2bab MD |
1499 | } |
1500 | ||
4164020e SM |
1501 | enum ctf_msg_iter_medium_status |
1502 | lttng_live_get_stream_bytes(struct lttng_live_msg_iter *lttng_live_msg_iter, | |
1503 | struct lttng_live_stream_iterator *stream, uint8_t *buf, | |
1504 | uint64_t offset, uint64_t req_len, uint64_t *recv_len) | |
7cdc2bab | 1505 | { |
4164020e SM |
1506 | enum ctf_msg_iter_medium_status status; |
1507 | enum lttng_live_viewer_status viewer_status; | |
1508 | struct lttng_viewer_trace_packet rp; | |
1509 | struct lttng_viewer_cmd cmd; | |
1510 | struct lttng_viewer_get_packet rq; | |
1511 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
1512 | bt_self_component *self_comp = viewer_connection->self_comp; | |
1513 | struct lttng_live_trace *trace = stream->trace; | |
1514 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); | |
1515 | char cmd_buf[cmd_buf_len]; | |
1516 | uint32_t flags, rp_status; | |
1517 | ||
1518 | BT_COMP_LOGD("Requesting data from stream: cmd=%s, " | |
1519 | "offset=%" PRIu64 ", request-len=%" PRIu64, | |
1520 | lttng_viewer_command_string(LTTNG_VIEWER_GET_PACKET), offset, req_len); | |
1521 | ||
1522 | cmd.cmd = htobe32(LTTNG_VIEWER_GET_PACKET); | |
1523 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1524 | cmd.cmd_version = htobe32(0); | |
1525 | ||
1526 | memset(&rq, 0, sizeof(rq)); | |
1527 | rq.stream_id = htobe64(stream->viewer_stream_id); | |
1528 | rq.offset = htobe64(offset); | |
1529 | rq.len = htobe32(req_len); | |
1530 | ||
1531 | /* | |
1532 | * Merge the cmd and connection request to prevent a write-write | |
1533 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1534 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1535 | */ | |
1536 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1537 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
1538 | ||
1539 | viewer_status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); | |
1540 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1541 | viewer_handle_send_status(self_comp, NULL, viewer_status, "get data packet command"); | |
1542 | goto error_convert_status; | |
1543 | } | |
1544 | ||
1545 | viewer_status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); | |
1546 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1547 | viewer_handle_recv_status(self_comp, NULL, viewer_status, "get data packet reply"); | |
1548 | goto error_convert_status; | |
1549 | } | |
1550 | ||
1551 | flags = be32toh(rp.flags); | |
1552 | rp_status = be32toh(rp.status); | |
1553 | ||
1554 | BT_COMP_LOGD("Received response from relay daemon: cmd=%s, response=%s", | |
1555 | lttng_viewer_command_string(LTTNG_VIEWER_GET_PACKET), | |
1556 | lttng_viewer_get_packet_return_code_string(rp_status)); | |
1557 | switch (rp_status) { | |
1558 | case LTTNG_VIEWER_GET_PACKET_OK: | |
1559 | req_len = be32toh(rp.len); | |
1560 | BT_COMP_LOGD("Got packet from relay daemon: response=%s, packet-len=%" PRIu64 "", | |
1561 | lttng_viewer_get_packet_return_code_string(rp_status), req_len); | |
4164020e SM |
1562 | break; |
1563 | case LTTNG_VIEWER_GET_PACKET_RETRY: | |
1564 | /* Unimplemented by relay daemon */ | |
1565 | status = CTF_MSG_ITER_MEDIUM_STATUS_AGAIN; | |
1566 | goto end; | |
1567 | case LTTNG_VIEWER_GET_PACKET_ERR: | |
1568 | if (flags & LTTNG_VIEWER_FLAG_NEW_METADATA) { | |
1569 | BT_COMP_LOGD("Marking trace as needing new metadata: " | |
1570 | "response=%s, response-flag=NEW_METADATA, trace-id=%" PRIu64, | |
1571 | lttng_viewer_next_index_return_code_string(rp_status), trace->id); | |
1572 | trace->metadata_stream_state = LTTNG_LIVE_METADATA_STREAM_STATE_NEEDED; | |
1573 | } | |
1574 | if (flags & LTTNG_VIEWER_FLAG_NEW_STREAM) { | |
1575 | BT_COMP_LOGD("Marking all sessions as possibly needing new streams: " | |
1576 | "response=%s, response-flag=NEW_STREAM", | |
1577 | lttng_viewer_next_index_return_code_string(rp_status)); | |
1578 | lttng_live_need_new_streams(lttng_live_msg_iter); | |
1579 | } | |
1580 | if (flags & (LTTNG_VIEWER_FLAG_NEW_METADATA | LTTNG_VIEWER_FLAG_NEW_STREAM)) { | |
1581 | status = CTF_MSG_ITER_MEDIUM_STATUS_AGAIN; | |
1582 | BT_COMP_LOGD("Reply with any one flags set means we should retry: response=%s", | |
1583 | lttng_viewer_get_packet_return_code_string(rp_status)); | |
1584 | goto end; | |
1585 | } | |
1586 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Received get_data_packet response: error"); | |
1587 | status = CTF_MSG_ITER_MEDIUM_STATUS_ERROR; | |
1588 | goto end; | |
1589 | case LTTNG_VIEWER_GET_PACKET_EOF: | |
1590 | status = CTF_MSG_ITER_MEDIUM_STATUS_EOF; | |
1591 | goto end; | |
1592 | default: | |
1593 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Received get_data_packet response: unknown (%d)", | |
1594 | rp_status); | |
1595 | status = CTF_MSG_ITER_MEDIUM_STATUS_ERROR; | |
1596 | goto end; | |
1597 | } | |
1598 | ||
1599 | if (req_len == 0) { | |
1600 | status = CTF_MSG_ITER_MEDIUM_STATUS_ERROR; | |
1601 | goto end; | |
1602 | } | |
1603 | ||
1604 | viewer_status = lttng_live_recv(viewer_connection, buf, req_len); | |
1605 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1606 | viewer_handle_recv_status(self_comp, NULL, viewer_status, "get data packet"); | |
1607 | goto error_convert_status; | |
1608 | } | |
1609 | *recv_len = req_len; | |
1610 | ||
1611 | status = CTF_MSG_ITER_MEDIUM_STATUS_OK; | |
1612 | goto end; | |
f79c2d7a | 1613 | |
535fb48a | 1614 | error_convert_status: |
4164020e | 1615 | status = viewer_status_to_ctf_msg_iter_medium_status(viewer_status); |
f79c2d7a | 1616 | end: |
4164020e | 1617 | return status; |
7cdc2bab MD |
1618 | } |
1619 | ||
1620 | /* | |
1621 | * Request new streams for a session. | |
1622 | */ | |
4164020e SM |
1623 | enum lttng_live_iterator_status |
1624 | lttng_live_session_get_new_streams(struct lttng_live_session *session, | |
1625 | bt_self_message_iterator *self_msg_iter) | |
7cdc2bab | 1626 | { |
4164020e SM |
1627 | enum lttng_live_iterator_status status = LTTNG_LIVE_ITERATOR_STATUS_OK; |
1628 | struct lttng_viewer_cmd cmd; | |
1629 | struct lttng_viewer_new_streams_request rq; | |
1630 | struct lttng_viewer_new_streams_response rp; | |
1631 | struct lttng_live_msg_iter *lttng_live_msg_iter = session->lttng_live_msg_iter; | |
1632 | enum lttng_live_viewer_status viewer_status; | |
1633 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
1634 | bt_self_component *self_comp = viewer_connection->self_comp; | |
1635 | uint32_t streams_count; | |
1636 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); | |
1637 | char cmd_buf[cmd_buf_len]; | |
1638 | ||
1639 | if (!session->new_streams_needed) { | |
1640 | status = LTTNG_LIVE_ITERATOR_STATUS_OK; | |
1641 | goto end; | |
1642 | } | |
1643 | ||
1644 | BT_COMP_LOGD("Requesting new streams for session: cmd=%s, " | |
1645 | "session-id=%" PRIu64, | |
1646 | lttng_viewer_command_string(LTTNG_VIEWER_GET_NEW_STREAMS), session->id); | |
1647 | ||
1648 | cmd.cmd = htobe32(LTTNG_VIEWER_GET_NEW_STREAMS); | |
1649 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1650 | cmd.cmd_version = htobe32(0); | |
1651 | ||
1652 | memset(&rq, 0, sizeof(rq)); | |
1653 | rq.session_id = htobe64(session->id); | |
1654 | ||
1655 | /* | |
1656 | * Merge the cmd and connection request to prevent a write-write | |
1657 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1658 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1659 | */ | |
1660 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1661 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
1662 | ||
1663 | viewer_status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); | |
1664 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1665 | viewer_handle_send_status(self_comp, NULL, viewer_status, "get new streams command"); | |
1666 | status = viewer_status_to_live_iterator_status(viewer_status); | |
1667 | goto end; | |
1668 | } | |
1669 | ||
1670 | viewer_status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); | |
1671 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1672 | viewer_handle_recv_status(self_comp, NULL, viewer_status, "get new streams reply"); | |
1673 | status = viewer_status_to_live_iterator_status(viewer_status); | |
1674 | goto end; | |
1675 | } | |
1676 | ||
1677 | streams_count = be32toh(rp.streams_count); | |
1678 | ||
1679 | switch (be32toh(rp.status)) { | |
1680 | case LTTNG_VIEWER_NEW_STREAMS_OK: | |
1681 | session->new_streams_needed = false; | |
1682 | break; | |
1683 | case LTTNG_VIEWER_NEW_STREAMS_NO_NEW: | |
1684 | session->new_streams_needed = false; | |
1685 | goto end; | |
1686 | case LTTNG_VIEWER_NEW_STREAMS_HUP: | |
1687 | session->new_streams_needed = false; | |
1688 | session->closed = true; | |
1689 | status = LTTNG_LIVE_ITERATOR_STATUS_END; | |
1690 | goto end; | |
1691 | case LTTNG_VIEWER_NEW_STREAMS_ERR: | |
1692 | BT_COMP_LOGD("Received get_new_streams response: error"); | |
1693 | status = LTTNG_LIVE_ITERATOR_STATUS_ERROR; | |
1694 | goto end; | |
1695 | default: | |
1696 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, | |
1697 | "Received get_new_streams response: Unknown:" | |
1698 | "return code %u", | |
1699 | be32toh(rp.status)); | |
1700 | status = LTTNG_LIVE_ITERATOR_STATUS_ERROR; | |
1701 | goto end; | |
1702 | } | |
1703 | ||
1704 | viewer_status = receive_streams(session, streams_count, self_msg_iter); | |
1705 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1706 | viewer_handle_recv_status(self_comp, NULL, viewer_status, "new streams"); | |
1707 | status = viewer_status_to_live_iterator_status(viewer_status); | |
1708 | goto end; | |
1709 | } | |
1710 | ||
1711 | status = LTTNG_LIVE_ITERATOR_STATUS_OK; | |
f79c2d7a | 1712 | end: |
4164020e | 1713 | return status; |
7cdc2bab MD |
1714 | } |
1715 | ||
f79c2d7a | 1716 | enum lttng_live_viewer_status live_viewer_connection_create( |
4164020e SM |
1717 | bt_self_component *self_comp, bt_self_component_class *self_comp_class, |
1718 | bt_logging_level log_level, const char *url, bool in_query, | |
1719 | struct lttng_live_msg_iter *lttng_live_msg_iter, struct live_viewer_connection **viewer) | |
7cdc2bab | 1720 | { |
4164020e SM |
1721 | struct live_viewer_connection *viewer_connection; |
1722 | enum lttng_live_viewer_status status; | |
1723 | ||
1724 | viewer_connection = g_new0(struct live_viewer_connection, 1); | |
1725 | ||
1726 | if (bt_socket_init(log_level) != 0) { | |
1727 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
1728 | "Failed to init socket"); | |
1729 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1730 | goto error; | |
1731 | } | |
1732 | ||
1733 | viewer_connection->log_level = log_level; | |
1734 | ||
1735 | viewer_connection->self_comp = self_comp; | |
1736 | viewer_connection->self_comp_class = self_comp_class; | |
1737 | ||
1738 | viewer_connection->control_sock = BT_INVALID_SOCKET; | |
1739 | viewer_connection->port = -1; | |
1740 | viewer_connection->in_query = in_query; | |
1741 | viewer_connection->lttng_live_msg_iter = lttng_live_msg_iter; | |
1742 | viewer_connection->url = g_string_new(url); | |
1743 | if (!viewer_connection->url) { | |
1744 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
1745 | "Failed to allocate URL buffer"); | |
1746 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1747 | goto error; | |
1748 | } | |
1749 | ||
1750 | BT_COMP_OR_COMP_CLASS_LOGD(self_comp, self_comp_class, | |
1751 | "Establishing connection to url \"%s\"...", url); | |
1752 | status = lttng_live_connect_viewer(viewer_connection); | |
1753 | /* | |
1754 | * Only print error and append cause in case of error. not in case of | |
1755 | * interruption. | |
1756 | */ | |
1757 | if (status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
1758 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
1759 | "Failed to establish connection: " | |
1760 | "url=\"%s\"", | |
1761 | url); | |
1762 | goto error; | |
1763 | } else if (status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { | |
1764 | goto error; | |
1765 | } | |
1766 | BT_COMP_OR_COMP_CLASS_LOGD(self_comp, self_comp_class, | |
1767 | "Connection to url \"%s\" is established", url); | |
1768 | ||
1769 | *viewer = viewer_connection; | |
1770 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
1771 | goto end; | |
7cdc2bab | 1772 | |
7cdc2bab | 1773 | error: |
4164020e SM |
1774 | if (viewer_connection) { |
1775 | live_viewer_connection_destroy(viewer_connection); | |
1776 | } | |
f79c2d7a | 1777 | end: |
4164020e | 1778 | return status; |
7cdc2bab MD |
1779 | } |
1780 | ||
4164020e | 1781 | void live_viewer_connection_destroy(struct live_viewer_connection *viewer_connection) |
7cdc2bab | 1782 | { |
4164020e SM |
1783 | bt_self_component *self_comp = viewer_connection->self_comp; |
1784 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
b9e6ec43 | 1785 | |
4164020e SM |
1786 | if (!viewer_connection) { |
1787 | goto end; | |
1788 | } | |
b9e6ec43 | 1789 | |
4164020e SM |
1790 | BT_COMP_OR_COMP_CLASS_LOGD(self_comp, self_comp_class, |
1791 | "Closing connection to relay:" | |
1792 | "relay-url=\"%s\"", | |
1793 | viewer_connection->url->str); | |
ecb4ba8a | 1794 | |
4164020e | 1795 | lttng_live_disconnect_viewer(viewer_connection); |
b9e6ec43 | 1796 | |
4164020e SM |
1797 | if (viewer_connection->url) { |
1798 | g_string_free(viewer_connection->url, true); | |
1799 | } | |
b9e6ec43 | 1800 | |
4164020e SM |
1801 | if (viewer_connection->relay_hostname) { |
1802 | g_string_free(viewer_connection->relay_hostname, true); | |
1803 | } | |
b9e6ec43 | 1804 | |
4164020e SM |
1805 | if (viewer_connection->target_hostname) { |
1806 | g_string_free(viewer_connection->target_hostname, true); | |
1807 | } | |
b9e6ec43 | 1808 | |
4164020e SM |
1809 | if (viewer_connection->session_name) { |
1810 | g_string_free(viewer_connection->session_name, true); | |
1811 | } | |
b9e6ec43 | 1812 | |
4164020e SM |
1813 | if (viewer_connection->proto) { |
1814 | g_string_free(viewer_connection->proto, true); | |
1815 | } | |
ecb4ba8a | 1816 | |
4164020e | 1817 | g_free(viewer_connection); |
1cb3cdd7 | 1818 | |
4164020e | 1819 | bt_socket_fini(); |
b9e6ec43 FD |
1820 | |
1821 | end: | |
4164020e | 1822 | return; |
7cdc2bab | 1823 | } |