Commit | Line | Data |
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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 | ||
2ece7dd0 | 8 | #define BT_COMP_LOG_SELF_COMP (viewer_connection->self_comp) |
4164020e SM |
9 | #define BT_LOG_OUTPUT_LEVEL (viewer_connection->log_level) |
10 | #define BT_LOG_TAG "PLUGIN/SRC.CTF.LTTNG-LIVE/VIEWER" | |
d9c39b0a | 11 | #include "logging/comp-logging.h" |
020bc26f | 12 | |
3c22a242 FD |
13 | #include <fcntl.h> |
14 | #include <stdbool.h> | |
7cdc2bab | 15 | #include <stdint.h> |
3c22a242 | 16 | #include <stdio.h> |
7cdc2bab | 17 | #include <stdlib.h> |
3c22a242 | 18 | #include <sys/types.h> |
7cdc2bab | 19 | #include <unistd.h> |
3c22a242 | 20 | |
7cdc2bab | 21 | #include <glib.h> |
7cdc2bab | 22 | |
578e048b MJ |
23 | #include "compat/socket.h" |
24 | #include "compat/endian.h" | |
25 | #include "compat/compiler.h" | |
26 | #include "common/common.h" | |
3fadfbc0 | 27 | #include <babeltrace2/babeltrace.h> |
7cdc2bab | 28 | |
087cd0f5 SM |
29 | #include "lttng-live.hpp" |
30 | #include "viewer-connection.hpp" | |
31 | #include "lttng-viewer-abi.hpp" | |
32 | #include "data-stream.hpp" | |
33 | #include "metadata.hpp" | |
7cdc2bab | 34 | |
4164020e SM |
35 | #define viewer_handle_send_recv_status(_self_comp, _self_comp_class, _status, _action, _msg_str) \ |
36 | do { \ | |
37 | switch (_status) { \ | |
38 | case LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED: \ | |
39 | break; \ | |
40 | case LTTNG_LIVE_VIEWER_STATUS_ERROR: \ | |
41 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(_self_comp, _self_comp_class, \ | |
42 | "Error " _action " " _msg_str); \ | |
43 | break; \ | |
44 | default: \ | |
45 | bt_common_abort(); \ | |
46 | } \ | |
47 | } while (0) | |
48 | ||
49 | #define viewer_handle_send_status(_self_comp, _self_comp_class, _status, _msg_str) \ | |
50 | viewer_handle_send_recv_status(_self_comp, _self_comp_class, _status, "sending", _msg_str) | |
51 | ||
52 | #define viewer_handle_recv_status(_self_comp, _self_comp_class, _status, _msg_str) \ | |
53 | viewer_handle_send_recv_status(_self_comp, _self_comp_class, _status, "receiving", _msg_str) | |
54 | ||
55 | #define LTTNG_LIVE_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE_ERRNO(_self_comp, _self_comp_class, _msg, \ | |
56 | _fmt, ...) \ | |
57 | do { \ | |
58 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(_self_comp, _self_comp_class, _msg ": %s" _fmt, \ | |
59 | bt_socket_errormsg(), ##__VA_ARGS__); \ | |
60 | } while (0) | |
61 | ||
62 | static const char *lttng_viewer_command_string(enum lttng_viewer_command cmd) | |
f93afbf9 | 63 | { |
4164020e SM |
64 | switch (cmd) { |
65 | case LTTNG_VIEWER_CONNECT: | |
66 | return "CONNECT"; | |
67 | case LTTNG_VIEWER_LIST_SESSIONS: | |
68 | return "LIST_SESSIONS"; | |
69 | case LTTNG_VIEWER_ATTACH_SESSION: | |
70 | return "ATTACH_SESSION"; | |
71 | case LTTNG_VIEWER_GET_NEXT_INDEX: | |
72 | return "GET_NEXT_INDEX"; | |
73 | case LTTNG_VIEWER_GET_PACKET: | |
74 | return "GET_PACKET"; | |
75 | case LTTNG_VIEWER_GET_METADATA: | |
76 | return "GET_METADATA"; | |
77 | case LTTNG_VIEWER_GET_NEW_STREAMS: | |
78 | return "GET_NEW_STREAMS"; | |
79 | case LTTNG_VIEWER_CREATE_SESSION: | |
80 | return "CREATE_SESSION"; | |
81 | case LTTNG_VIEWER_DETACH_SESSION: | |
82 | return "DETACH_SESSION"; | |
83 | } | |
84 | ||
85 | bt_common_abort(); | |
f93afbf9 FD |
86 | } |
87 | ||
4164020e SM |
88 | static const char * |
89 | lttng_viewer_next_index_return_code_string(enum lttng_viewer_next_index_return_code code) | |
f93afbf9 | 90 | { |
4164020e SM |
91 | switch (code) { |
92 | case LTTNG_VIEWER_INDEX_OK: | |
93 | return "INDEX_OK"; | |
94 | case LTTNG_VIEWER_INDEX_RETRY: | |
95 | return "INDEX_RETRY"; | |
96 | case LTTNG_VIEWER_INDEX_HUP: | |
97 | return "INDEX_HUP"; | |
98 | case LTTNG_VIEWER_INDEX_ERR: | |
99 | return "INDEX_ERR"; | |
100 | case LTTNG_VIEWER_INDEX_INACTIVE: | |
101 | return "INDEX_INACTIVE"; | |
102 | case LTTNG_VIEWER_INDEX_EOF: | |
103 | return "INDEX_EOF"; | |
104 | } | |
105 | ||
106 | bt_common_abort(); | |
f93afbf9 FD |
107 | } |
108 | ||
4164020e | 109 | static const char *lttng_viewer_next_index_return_code_string(uint32_t code) |
087cd0f5 | 110 | { |
4164020e | 111 | return lttng_viewer_next_index_return_code_string((lttng_viewer_next_index_return_code) code); |
087cd0f5 SM |
112 | } |
113 | ||
4164020e SM |
114 | static const char * |
115 | lttng_viewer_get_packet_return_code_string(enum lttng_viewer_get_packet_return_code code) | |
f93afbf9 | 116 | { |
4164020e SM |
117 | switch (code) { |
118 | case LTTNG_VIEWER_GET_PACKET_OK: | |
119 | return "GET_PACKET_OK"; | |
120 | case LTTNG_VIEWER_GET_PACKET_RETRY: | |
121 | return "GET_PACKET_RETRY"; | |
122 | case LTTNG_VIEWER_GET_PACKET_ERR: | |
123 | return "GET_PACKET_ERR"; | |
124 | case LTTNG_VIEWER_GET_PACKET_EOF: | |
125 | return "GET_PACKET_EOF"; | |
126 | } | |
127 | ||
128 | bt_common_abort(); | |
f93afbf9 FD |
129 | }; |
130 | ||
4164020e | 131 | static const char *lttng_viewer_get_packet_return_code_string(uint32_t code) |
087cd0f5 | 132 | { |
4164020e | 133 | return lttng_viewer_get_packet_return_code_string((lttng_viewer_get_packet_return_code) code); |
087cd0f5 SM |
134 | } |
135 | ||
4164020e | 136 | static const char *lttng_viewer_seek_string(enum lttng_viewer_seek seek) |
f93afbf9 | 137 | { |
4164020e SM |
138 | switch (seek) { |
139 | case LTTNG_VIEWER_SEEK_BEGINNING: | |
140 | return "SEEK_BEGINNING"; | |
141 | case LTTNG_VIEWER_SEEK_LAST: | |
142 | return "SEEK_LAST"; | |
143 | } | |
144 | ||
145 | bt_common_abort(); | |
f93afbf9 FD |
146 | } |
147 | ||
4164020e SM |
148 | static inline enum lttng_live_iterator_status |
149 | viewer_status_to_live_iterator_status(enum lttng_live_viewer_status viewer_status) | |
f79c2d7a | 150 | { |
4164020e SM |
151 | switch (viewer_status) { |
152 | case LTTNG_LIVE_VIEWER_STATUS_OK: | |
153 | return LTTNG_LIVE_ITERATOR_STATUS_OK; | |
154 | case LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED: | |
155 | return LTTNG_LIVE_ITERATOR_STATUS_AGAIN; | |
156 | case LTTNG_LIVE_VIEWER_STATUS_ERROR: | |
157 | return LTTNG_LIVE_ITERATOR_STATUS_ERROR; | |
158 | } | |
159 | ||
160 | bt_common_abort(); | |
f79c2d7a FD |
161 | } |
162 | ||
4164020e SM |
163 | static inline enum ctf_msg_iter_medium_status |
164 | viewer_status_to_ctf_msg_iter_medium_status(enum lttng_live_viewer_status viewer_status) | |
f79c2d7a | 165 | { |
4164020e SM |
166 | switch (viewer_status) { |
167 | case LTTNG_LIVE_VIEWER_STATUS_OK: | |
168 | return CTF_MSG_ITER_MEDIUM_STATUS_OK; | |
169 | case LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED: | |
170 | return CTF_MSG_ITER_MEDIUM_STATUS_AGAIN; | |
171 | case LTTNG_LIVE_VIEWER_STATUS_ERROR: | |
172 | return CTF_MSG_ITER_MEDIUM_STATUS_ERROR; | |
173 | } | |
174 | ||
175 | bt_common_abort(); | |
f79c2d7a FD |
176 | } |
177 | ||
4164020e | 178 | static inline void viewer_connection_close_socket(struct live_viewer_connection *viewer_connection) |
b197ca37 | 179 | { |
4164020e SM |
180 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; |
181 | bt_self_component *self_comp = viewer_connection->self_comp; | |
182 | int ret = bt_socket_close(viewer_connection->control_sock); | |
183 | if (ret == -1) { | |
184 | BT_COMP_OR_COMP_CLASS_LOGW_ERRNO(self_comp, self_comp_class, | |
185 | "Error closing viewer connection socket: ", "."); | |
186 | } | |
187 | ||
188 | viewer_connection->control_sock = BT_INVALID_SOCKET; | |
b197ca37 FD |
189 | } |
190 | ||
f79c2d7a FD |
191 | /* |
192 | * This function receives a message from the Relay daemon. | |
193 | * If it received the entire message, it returns _OK, | |
194 | * If it's interrupted, it returns _INTERRUPTED, | |
195 | * otherwise, it returns _ERROR. | |
196 | */ | |
4164020e SM |
197 | static enum lttng_live_viewer_status |
198 | lttng_live_recv(struct live_viewer_connection *viewer_connection, void *buf, size_t len) | |
7cdc2bab | 199 | { |
4164020e SM |
200 | ssize_t received; |
201 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
202 | bt_self_component *self_comp = viewer_connection->self_comp; | |
203 | size_t total_received = 0, to_receive = len; | |
204 | struct lttng_live_msg_iter *lttng_live_msg_iter = viewer_connection->lttng_live_msg_iter; | |
205 | enum lttng_live_viewer_status status; | |
206 | BT_SOCKET sock = viewer_connection->control_sock; | |
207 | ||
208 | /* | |
209 | * Receive a message from the Relay. | |
210 | */ | |
211 | do { | |
212 | received = bt_socket_recv(sock, (char *) buf + total_received, to_receive, 0); | |
213 | if (received == BT_SOCKET_ERROR) { | |
214 | if (bt_socket_interrupted()) { | |
215 | if (lttng_live_graph_is_canceled(lttng_live_msg_iter)) { | |
216 | /* | |
217 | * This interruption was due to a | |
218 | * SIGINT and the graph is being torn | |
219 | * down. | |
220 | */ | |
221 | status = LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED; | |
222 | lttng_live_msg_iter->was_interrupted = true; | |
223 | goto end; | |
224 | } else { | |
225 | /* | |
226 | * A signal was received, but the graph | |
227 | * is not being torn down. Carry on. | |
228 | */ | |
229 | continue; | |
230 | } | |
231 | } else { | |
232 | /* | |
233 | * For any other types of socket error, close | |
234 | * the socket and return an error. | |
235 | */ | |
236 | LTTNG_LIVE_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE_ERRNO( | |
237 | self_comp, self_comp_class, "Error receiving from Relay", "."); | |
238 | ||
239 | viewer_connection_close_socket(viewer_connection); | |
240 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
241 | goto end; | |
242 | } | |
243 | } else if (received == 0) { | |
244 | /* | |
245 | * The recv() call returned 0. This means the | |
246 | * connection was orderly shutdown from the other peer. | |
247 | * If that happens when we are trying to receive | |
248 | * a message from it, it means something when wrong. | |
249 | * Close the socket and return an error. | |
250 | */ | |
251 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
252 | "Remote side has closed connection"); | |
253 | viewer_connection_close_socket(viewer_connection); | |
254 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
255 | goto end; | |
256 | } | |
257 | ||
258 | BT_ASSERT(received <= to_receive); | |
259 | total_received += received; | |
260 | to_receive -= received; | |
261 | ||
262 | } while (to_receive > 0); | |
263 | ||
264 | BT_ASSERT(total_received == len); | |
265 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
f79c2d7a FD |
266 | |
267 | end: | |
4164020e | 268 | return status; |
7cdc2bab MD |
269 | } |
270 | ||
f79c2d7a FD |
271 | /* |
272 | * This function sends a message to the Relay daemon. | |
273 | * If it send the message, it returns _OK, | |
274 | * If it's interrupted, it returns _INTERRUPTED, | |
275 | * otherwise, it returns _ERROR. | |
276 | */ | |
4164020e SM |
277 | static enum lttng_live_viewer_status |
278 | lttng_live_send(struct live_viewer_connection *viewer_connection, const void *buf, size_t len) | |
7cdc2bab | 279 | { |
4164020e SM |
280 | enum lttng_live_viewer_status status; |
281 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
282 | bt_self_component *self_comp = viewer_connection->self_comp; | |
283 | struct lttng_live_msg_iter *lttng_live_msg_iter = viewer_connection->lttng_live_msg_iter; | |
284 | BT_SOCKET sock = viewer_connection->control_sock; | |
285 | size_t to_send = len; | |
286 | ssize_t total_sent = 0; | |
287 | ||
288 | do { | |
289 | ssize_t sent = bt_socket_send_nosigpipe(sock, (char *) buf + total_sent, to_send); | |
290 | if (sent == BT_SOCKET_ERROR) { | |
291 | if (bt_socket_interrupted()) { | |
292 | if (lttng_live_graph_is_canceled(lttng_live_msg_iter)) { | |
293 | /* | |
294 | * This interruption was a SIGINT and | |
295 | * the graph is being teared down. | |
296 | */ | |
297 | status = LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED; | |
298 | lttng_live_msg_iter->was_interrupted = true; | |
299 | goto end; | |
300 | } else { | |
301 | /* | |
302 | * A signal was received, but the graph | |
303 | * is not being teared down. Carry on. | |
304 | */ | |
305 | continue; | |
306 | } | |
307 | } else { | |
308 | /* | |
309 | * For any other types of socket error, close | |
310 | * the socket and return an error. | |
311 | */ | |
312 | LTTNG_LIVE_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE_ERRNO( | |
313 | self_comp, self_comp_class, "Error sending to Relay", "."); | |
314 | ||
315 | viewer_connection_close_socket(viewer_connection); | |
316 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
317 | goto end; | |
318 | } | |
319 | } | |
320 | ||
321 | BT_ASSERT(sent <= to_send); | |
322 | total_sent += sent; | |
323 | to_send -= sent; | |
324 | ||
325 | } while (to_send > 0); | |
326 | ||
327 | BT_ASSERT(total_sent == len); | |
328 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
f79c2d7a FD |
329 | |
330 | end: | |
4164020e | 331 | return status; |
7cdc2bab MD |
332 | } |
333 | ||
4164020e | 334 | static int parse_url(struct live_viewer_connection *viewer_connection) |
7cdc2bab | 335 | { |
4164020e SM |
336 | char error_buf[256] = {0}; |
337 | bt_self_component *self_comp = viewer_connection->self_comp; | |
338 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
dd420a9b | 339 | struct bt_common_lttng_live_url_parts lttng_live_url_parts = {}; |
4164020e SM |
340 | int ret = -1; |
341 | const char *path = viewer_connection->url->str; | |
342 | ||
343 | if (!path) { | |
344 | goto end; | |
345 | } | |
346 | ||
347 | lttng_live_url_parts = bt_common_parse_lttng_live_url(path, error_buf, sizeof(error_buf)); | |
348 | if (!lttng_live_url_parts.proto) { | |
349 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
350 | "Invalid LTTng live URL format: %s", error_buf); | |
351 | goto end; | |
352 | } | |
353 | viewer_connection->proto = lttng_live_url_parts.proto; | |
354 | lttng_live_url_parts.proto = NULL; | |
355 | ||
356 | viewer_connection->relay_hostname = lttng_live_url_parts.hostname; | |
357 | lttng_live_url_parts.hostname = NULL; | |
358 | ||
359 | if (lttng_live_url_parts.port >= 0) { | |
360 | viewer_connection->port = lttng_live_url_parts.port; | |
361 | } else { | |
362 | viewer_connection->port = LTTNG_DEFAULT_NETWORK_VIEWER_PORT; | |
363 | } | |
364 | ||
365 | viewer_connection->target_hostname = lttng_live_url_parts.target_hostname; | |
366 | lttng_live_url_parts.target_hostname = NULL; | |
367 | ||
368 | if (lttng_live_url_parts.session_name) { | |
369 | viewer_connection->session_name = lttng_live_url_parts.session_name; | |
370 | lttng_live_url_parts.session_name = NULL; | |
371 | } | |
372 | ||
373 | ret = 0; | |
7cdc2bab MD |
374 | |
375 | end: | |
4164020e SM |
376 | bt_common_destroy_lttng_live_url_parts(<tng_live_url_parts); |
377 | return ret; | |
7cdc2bab MD |
378 | } |
379 | ||
4164020e SM |
380 | static enum lttng_live_viewer_status |
381 | lttng_live_handshake(struct live_viewer_connection *viewer_connection) | |
7cdc2bab | 382 | { |
4164020e SM |
383 | struct lttng_viewer_cmd cmd; |
384 | struct lttng_viewer_connect connect; | |
385 | enum lttng_live_viewer_status status; | |
386 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
387 | bt_self_component *self_comp = viewer_connection->self_comp; | |
388 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(connect); | |
389 | char cmd_buf[cmd_buf_len]; | |
390 | ||
391 | BT_COMP_OR_COMP_CLASS_LOGD( | |
392 | self_comp, self_comp_class, | |
393 | "Handshaking with the relay daemon: cmd=%s, major-version=%u, minor-version=%u", | |
394 | lttng_viewer_command_string(LTTNG_VIEWER_CONNECT), LTTNG_LIVE_MAJOR, LTTNG_LIVE_MINOR); | |
395 | ||
396 | cmd.cmd = htobe32(LTTNG_VIEWER_CONNECT); | |
397 | cmd.data_size = htobe64((uint64_t) sizeof(connect)); | |
398 | cmd.cmd_version = htobe32(0); | |
399 | ||
400 | connect.viewer_session_id = -1ULL; /* will be set on recv */ | |
401 | connect.major = htobe32(LTTNG_LIVE_MAJOR); | |
402 | connect.minor = htobe32(LTTNG_LIVE_MINOR); | |
403 | connect.type = htobe32(LTTNG_VIEWER_CLIENT_COMMAND); | |
404 | ||
405 | /* | |
406 | * Merge the cmd and connection request to prevent a write-write | |
407 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
408 | * second write to be performed quickly in presence of Nagle's algorithm | |
409 | */ | |
410 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
411 | memcpy(cmd_buf + sizeof(cmd), &connect, sizeof(connect)); | |
412 | ||
413 | status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); | |
414 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
415 | viewer_handle_send_status(self_comp, self_comp_class, status, "viewer connect command"); | |
416 | goto end; | |
417 | } | |
418 | ||
419 | status = lttng_live_recv(viewer_connection, &connect, sizeof(connect)); | |
420 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
421 | viewer_handle_recv_status(self_comp, self_comp_class, status, "viewer connect reply"); | |
422 | goto end; | |
423 | } | |
424 | ||
425 | BT_COMP_OR_COMP_CLASS_LOGI(self_comp, self_comp_class, "Received viewer session ID : %" PRIu64, | |
426 | (uint64_t) be64toh(connect.viewer_session_id)); | |
427 | BT_COMP_OR_COMP_CLASS_LOGI(self_comp, self_comp_class, "Relayd version : %u.%u", | |
428 | be32toh(connect.major), be32toh(connect.minor)); | |
429 | ||
430 | if (LTTNG_LIVE_MAJOR != be32toh(connect.major)) { | |
431 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
432 | "Incompatible lttng-relayd protocol"); | |
433 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
434 | goto end; | |
435 | } | |
436 | /* Use the smallest protocol version implemented. */ | |
437 | if (LTTNG_LIVE_MINOR > be32toh(connect.minor)) { | |
438 | viewer_connection->minor = be32toh(connect.minor); | |
439 | } else { | |
440 | viewer_connection->minor = LTTNG_LIVE_MINOR; | |
441 | } | |
442 | viewer_connection->major = LTTNG_LIVE_MAJOR; | |
443 | ||
444 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
445 | ||
446 | goto end; | |
f79c2d7a FD |
447 | |
448 | end: | |
4164020e | 449 | return status; |
7cdc2bab MD |
450 | } |
451 | ||
4164020e SM |
452 | static enum lttng_live_viewer_status |
453 | lttng_live_connect_viewer(struct live_viewer_connection *viewer_connection) | |
7cdc2bab | 454 | { |
4164020e SM |
455 | struct hostent *host; |
456 | struct sockaddr_in server_addr; | |
457 | enum lttng_live_viewer_status status; | |
458 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
459 | bt_self_component *self_comp = viewer_connection->self_comp; | |
460 | ||
461 | if (parse_url(viewer_connection)) { | |
462 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, "Failed to parse URL"); | |
463 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
464 | goto error; | |
465 | } | |
466 | ||
467 | BT_COMP_OR_COMP_CLASS_LOGD( | |
468 | self_comp, self_comp_class, | |
469 | "Connecting to hostname : %s, port : %d, " | |
470 | "target hostname : %s, session name : %s, proto : %s", | |
471 | viewer_connection->relay_hostname->str, viewer_connection->port, | |
472 | !viewer_connection->target_hostname ? "<none>" : viewer_connection->target_hostname->str, | |
473 | !viewer_connection->session_name ? "<none>" : viewer_connection->session_name->str, | |
474 | viewer_connection->proto->str); | |
475 | ||
476 | host = gethostbyname(viewer_connection->relay_hostname->str); | |
477 | if (!host) { | |
478 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
479 | "Cannot lookup hostname: hostname=\"%s\"", | |
480 | viewer_connection->relay_hostname->str); | |
481 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
482 | goto error; | |
483 | } | |
484 | ||
485 | if ((viewer_connection->control_sock = socket(AF_INET, SOCK_STREAM, 0)) == BT_INVALID_SOCKET) { | |
486 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
487 | "Socket creation failed: %s", bt_socket_errormsg()); | |
488 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
489 | goto error; | |
490 | } | |
491 | ||
492 | server_addr.sin_family = AF_INET; | |
493 | server_addr.sin_port = htons(viewer_connection->port); | |
494 | server_addr.sin_addr = *((struct in_addr *) host->h_addr); | |
495 | memset(&(server_addr.sin_zero), 0, 8); | |
496 | ||
497 | if (connect(viewer_connection->control_sock, (struct sockaddr *) &server_addr, | |
498 | sizeof(struct sockaddr)) == BT_SOCKET_ERROR) { | |
499 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, "Connection failed: %s", | |
500 | bt_socket_errormsg()); | |
501 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
502 | goto error; | |
503 | } | |
504 | ||
505 | status = lttng_live_handshake(viewer_connection); | |
506 | ||
507 | /* | |
508 | * Only print error and append cause in case of error. not in case of | |
509 | * interruption. | |
510 | */ | |
511 | if (status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
512 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
513 | "Viewer handshake failed"); | |
514 | goto error; | |
515 | } else if (status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { | |
516 | goto end; | |
517 | } | |
518 | ||
519 | goto end; | |
7cdc2bab MD |
520 | |
521 | error: | |
4164020e SM |
522 | if (viewer_connection->control_sock != BT_INVALID_SOCKET) { |
523 | if (bt_socket_close(viewer_connection->control_sock) == BT_SOCKET_ERROR) { | |
524 | BT_COMP_OR_COMP_CLASS_LOGW(self_comp, self_comp_class, "Error closing socket: %s.", | |
525 | bt_socket_errormsg()); | |
526 | } | |
527 | } | |
528 | viewer_connection->control_sock = BT_INVALID_SOCKET; | |
f79c2d7a | 529 | end: |
4164020e | 530 | return status; |
7cdc2bab MD |
531 | } |
532 | ||
4164020e | 533 | static void lttng_live_disconnect_viewer(struct live_viewer_connection *viewer_connection) |
7cdc2bab | 534 | { |
4164020e SM |
535 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; |
536 | bt_self_component *self_comp = viewer_connection->self_comp; | |
537 | ||
538 | if (viewer_connection->control_sock == BT_INVALID_SOCKET) { | |
539 | return; | |
540 | } | |
541 | if (bt_socket_close(viewer_connection->control_sock) == BT_SOCKET_ERROR) { | |
542 | BT_COMP_OR_COMP_CLASS_LOGW(self_comp, self_comp_class, "Error closing socket: %s", | |
543 | bt_socket_errormsg()); | |
544 | viewer_connection->control_sock = BT_INVALID_SOCKET; | |
545 | } | |
7cdc2bab MD |
546 | } |
547 | ||
4164020e SM |
548 | static int list_update_session(bt_value *results, const struct lttng_viewer_session *session, |
549 | bool *_found, struct live_viewer_connection *viewer_connection) | |
7cdc2bab | 550 | { |
4164020e SM |
551 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; |
552 | bt_self_component *self_comp = viewer_connection->self_comp; | |
553 | int ret = 0; | |
554 | uint64_t i, len; | |
555 | bt_value *map = NULL; | |
556 | bt_value *hostname = NULL; | |
557 | bt_value *session_name = NULL; | |
558 | bt_value *btval = NULL; | |
559 | bool found = false; | |
560 | ||
561 | len = bt_value_array_get_length(results); | |
562 | for (i = 0; i < len; i++) { | |
563 | const char *hostname_str = NULL; | |
564 | const char *session_name_str = NULL; | |
565 | ||
566 | map = bt_value_array_borrow_element_by_index(results, i); | |
567 | hostname = bt_value_map_borrow_entry_value(map, "target-hostname"); | |
568 | if (!hostname) { | |
569 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
570 | "Error borrowing \"target-hostname\" entry."); | |
571 | ret = -1; | |
572 | goto end; | |
573 | } | |
574 | session_name = bt_value_map_borrow_entry_value(map, "session-name"); | |
575 | if (!session_name) { | |
576 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
577 | "Error borrowing \"session-name\" entry."); | |
578 | ret = -1; | |
579 | goto end; | |
580 | } | |
581 | hostname_str = bt_value_string_get(hostname); | |
582 | session_name_str = bt_value_string_get(session_name); | |
583 | ||
584 | if (strcmp(session->hostname, hostname_str) == 0 && | |
585 | strcmp(session->session_name, session_name_str) == 0) { | |
586 | int64_t val; | |
587 | uint32_t streams = be32toh(session->streams); | |
588 | uint32_t clients = be32toh(session->clients); | |
589 | ||
590 | found = true; | |
591 | ||
592 | btval = bt_value_map_borrow_entry_value(map, "stream-count"); | |
593 | if (!btval) { | |
594 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
595 | "Error borrowing \"stream-count\" entry."); | |
596 | ret = -1; | |
597 | goto end; | |
598 | } | |
599 | val = bt_value_integer_unsigned_get(btval); | |
600 | /* sum */ | |
601 | val += streams; | |
602 | bt_value_integer_unsigned_set(btval, val); | |
603 | ||
604 | btval = bt_value_map_borrow_entry_value(map, "client-count"); | |
605 | if (!btval) { | |
606 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
607 | "Error borrowing \"client-count\" entry."); | |
608 | ret = -1; | |
609 | goto end; | |
610 | } | |
611 | val = bt_value_integer_unsigned_get(btval); | |
612 | /* max */ | |
613 | val = bt_max_t(int64_t, clients, val); | |
614 | bt_value_integer_unsigned_set(btval, val); | |
615 | } | |
616 | ||
617 | if (found) { | |
618 | break; | |
619 | } | |
620 | } | |
7cdc2bab | 621 | end: |
4164020e SM |
622 | *_found = found; |
623 | return ret; | |
7cdc2bab MD |
624 | } |
625 | ||
4164020e SM |
626 | static int list_append_session(bt_value *results, GString *base_url, |
627 | const struct lttng_viewer_session *session, | |
628 | struct live_viewer_connection *viewer_connection) | |
7cdc2bab | 629 | { |
4164020e SM |
630 | int ret = 0; |
631 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
632 | bt_value_map_insert_entry_status insert_status; | |
633 | bt_value_array_append_element_status append_status; | |
634 | bt_value *map = NULL; | |
635 | GString *url = NULL; | |
636 | bool found = false; | |
637 | ||
638 | /* | |
639 | * If the session already exists, add the stream count to it, | |
640 | * and do max of client counts. | |
641 | */ | |
642 | ret = list_update_session(results, session, &found, viewer_connection); | |
643 | if (ret || found) { | |
644 | goto end; | |
645 | } | |
646 | ||
647 | map = bt_value_map_create(); | |
648 | if (!map) { | |
649 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error creating map value."); | |
650 | ret = -1; | |
651 | goto end; | |
652 | } | |
653 | ||
654 | if (base_url->len < 1) { | |
655 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error: base_url length smaller than 1."); | |
656 | ret = -1; | |
657 | goto end; | |
658 | } | |
659 | /* | |
660 | * key = "url", | |
661 | * value = <string>, | |
662 | */ | |
663 | url = g_string_new(base_url->str); | |
664 | g_string_append(url, "/host/"); | |
665 | g_string_append(url, session->hostname); | |
666 | g_string_append_c(url, '/'); | |
667 | g_string_append(url, session->session_name); | |
668 | ||
669 | insert_status = bt_value_map_insert_string_entry(map, "url", url->str); | |
670 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
671 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error inserting \"url\" entry."); | |
672 | ret = -1; | |
673 | goto end; | |
674 | } | |
675 | ||
676 | /* | |
677 | * key = "target-hostname", | |
678 | * value = <string>, | |
679 | */ | |
680 | insert_status = bt_value_map_insert_string_entry(map, "target-hostname", session->hostname); | |
681 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
682 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, | |
683 | "Error inserting \"target-hostname\" entry."); | |
684 | ret = -1; | |
685 | goto end; | |
686 | } | |
687 | ||
688 | /* | |
689 | * key = "session-name", | |
690 | * value = <string>, | |
691 | */ | |
692 | insert_status = bt_value_map_insert_string_entry(map, "session-name", session->session_name); | |
693 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
694 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error inserting \"session-name\" entry."); | |
695 | ret = -1; | |
696 | goto end; | |
697 | } | |
698 | ||
699 | /* | |
700 | * key = "timer-us", | |
701 | * value = <integer>, | |
702 | */ | |
703 | { | |
704 | uint32_t live_timer = be32toh(session->live_timer); | |
705 | ||
706 | insert_status = bt_value_map_insert_unsigned_integer_entry(map, "timer-us", live_timer); | |
707 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
708 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error inserting \"timer-us\" entry."); | |
709 | ret = -1; | |
710 | goto end; | |
711 | } | |
712 | } | |
713 | ||
714 | /* | |
715 | * key = "stream-count", | |
716 | * value = <integer>, | |
717 | */ | |
718 | { | |
719 | uint32_t streams = be32toh(session->streams); | |
720 | ||
721 | insert_status = bt_value_map_insert_unsigned_integer_entry(map, "stream-count", streams); | |
722 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
723 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, | |
724 | "Error inserting \"stream-count\" entry."); | |
725 | ret = -1; | |
726 | goto end; | |
727 | } | |
728 | } | |
729 | ||
730 | /* | |
731 | * key = "client-count", | |
732 | * value = <integer>, | |
733 | */ | |
734 | { | |
735 | uint32_t clients = be32toh(session->clients); | |
736 | ||
737 | insert_status = bt_value_map_insert_unsigned_integer_entry(map, "client-count", clients); | |
738 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
739 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, | |
740 | "Error inserting \"client-count\" entry."); | |
741 | ret = -1; | |
742 | goto end; | |
743 | } | |
744 | } | |
745 | ||
746 | append_status = bt_value_array_append_element(results, map); | |
747 | if (append_status != BT_VALUE_ARRAY_APPEND_ELEMENT_STATUS_OK) { | |
748 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error appending map to results."); | |
749 | ret = -1; | |
750 | } | |
14f28187 | 751 | |
7cdc2bab | 752 | end: |
4164020e SM |
753 | if (url) { |
754 | g_string_free(url, true); | |
755 | } | |
756 | BT_VALUE_PUT_REF_AND_RESET(map); | |
757 | return ret; | |
7cdc2bab MD |
758 | } |
759 | ||
760 | /* | |
761 | * Data structure returned: | |
762 | * | |
763 | * { | |
764 | * <array> = { | |
765 | * [n] = { | |
766 | * <map> = { | |
767 | * { | |
768 | * key = "url", | |
769 | * value = <string>, | |
770 | * }, | |
771 | * { | |
772 | * key = "target-hostname", | |
773 | * value = <string>, | |
774 | * }, | |
775 | * { | |
776 | * key = "session-name", | |
777 | * value = <string>, | |
778 | * }, | |
779 | * { | |
780 | * key = "timer-us", | |
781 | * value = <integer>, | |
782 | * }, | |
783 | * { | |
784 | * key = "stream-count", | |
785 | * value = <integer>, | |
786 | * }, | |
787 | * { | |
788 | * key = "client-count", | |
789 | * value = <integer>, | |
790 | * }, | |
791 | * }, | |
792 | * } | |
793 | * } | |
794 | */ | |
795 | ||
4164020e SM |
796 | bt_component_class_query_method_status |
797 | live_viewer_connection_list_sessions(struct live_viewer_connection *viewer_connection, | |
798 | const bt_value **user_result) | |
7cdc2bab | 799 | { |
4164020e SM |
800 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; |
801 | bt_component_class_query_method_status status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_OK; | |
802 | bt_value *result = NULL; | |
803 | enum lttng_live_viewer_status viewer_status; | |
804 | struct lttng_viewer_cmd cmd; | |
805 | struct lttng_viewer_list_sessions list; | |
806 | uint32_t i, sessions_count; | |
807 | ||
808 | result = bt_value_array_create(); | |
809 | if (!result) { | |
810 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error creating array"); | |
811 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_MEMORY_ERROR; | |
812 | goto error; | |
813 | } | |
814 | ||
815 | BT_LOGD("Requesting list of sessions: cmd=%s", | |
816 | lttng_viewer_command_string(LTTNG_VIEWER_LIST_SESSIONS)); | |
817 | ||
818 | cmd.cmd = htobe32(LTTNG_VIEWER_LIST_SESSIONS); | |
819 | cmd.data_size = htobe64((uint64_t) 0); | |
820 | cmd.cmd_version = htobe32(0); | |
821 | ||
822 | viewer_status = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); | |
823 | if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
824 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error sending list sessions command"); | |
825 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; | |
826 | goto error; | |
827 | } else if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { | |
828 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_AGAIN; | |
829 | goto error; | |
830 | } | |
831 | ||
832 | viewer_status = lttng_live_recv(viewer_connection, &list, sizeof(list)); | |
833 | if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
834 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error receiving session list"); | |
835 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; | |
836 | goto error; | |
837 | } else if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { | |
838 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_AGAIN; | |
839 | goto error; | |
840 | } | |
841 | ||
842 | sessions_count = be32toh(list.sessions_count); | |
843 | for (i = 0; i < sessions_count; i++) { | |
844 | struct lttng_viewer_session lsession; | |
845 | ||
846 | viewer_status = lttng_live_recv(viewer_connection, &lsession, sizeof(lsession)); | |
847 | if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
848 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error receiving session:"); | |
849 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; | |
850 | goto error; | |
851 | } else if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { | |
852 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_AGAIN; | |
853 | goto error; | |
854 | } | |
855 | ||
856 | lsession.hostname[LTTNG_VIEWER_HOST_NAME_MAX - 1] = '\0'; | |
857 | lsession.session_name[LTTNG_VIEWER_NAME_MAX - 1] = '\0'; | |
858 | if (list_append_session(result, viewer_connection->url, &lsession, viewer_connection)) { | |
859 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, "Error appending session"); | |
860 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; | |
861 | goto error; | |
862 | } | |
863 | } | |
864 | ||
865 | *user_result = result; | |
866 | goto end; | |
7cdc2bab | 867 | error: |
4164020e | 868 | BT_VALUE_PUT_REF_AND_RESET(result); |
7cdc2bab | 869 | end: |
4164020e | 870 | return status; |
7cdc2bab MD |
871 | } |
872 | ||
4164020e SM |
873 | static enum lttng_live_viewer_status |
874 | lttng_live_query_session_ids(struct lttng_live_msg_iter *lttng_live_msg_iter) | |
7cdc2bab | 875 | { |
4164020e SM |
876 | struct lttng_viewer_cmd cmd; |
877 | struct lttng_viewer_list_sessions list; | |
878 | struct lttng_viewer_session lsession; | |
879 | uint32_t i, sessions_count; | |
880 | uint64_t session_id; | |
881 | enum lttng_live_viewer_status status; | |
882 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
883 | bt_self_component *self_comp = viewer_connection->self_comp; | |
884 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
885 | ||
886 | BT_COMP_LOGD("Asking the relay daemon for the list of sessions: cmd=%s", | |
887 | lttng_viewer_command_string(LTTNG_VIEWER_LIST_SESSIONS)); | |
888 | ||
889 | cmd.cmd = htobe32(LTTNG_VIEWER_LIST_SESSIONS); | |
890 | cmd.data_size = htobe64((uint64_t) 0); | |
891 | cmd.cmd_version = htobe32(0); | |
892 | ||
893 | status = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); | |
894 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
895 | viewer_handle_send_status(self_comp, self_comp_class, status, "list sessions command"); | |
896 | goto end; | |
897 | } | |
898 | ||
899 | status = lttng_live_recv(viewer_connection, &list, sizeof(list)); | |
900 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
901 | viewer_handle_recv_status(self_comp, self_comp_class, status, "session list reply"); | |
902 | goto end; | |
903 | } | |
904 | ||
905 | sessions_count = be32toh(list.sessions_count); | |
906 | for (i = 0; i < sessions_count; i++) { | |
907 | status = lttng_live_recv(viewer_connection, &lsession, sizeof(lsession)); | |
908 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
909 | viewer_handle_recv_status(self_comp, self_comp_class, status, "session reply"); | |
910 | goto end; | |
911 | } | |
912 | lsession.hostname[LTTNG_VIEWER_HOST_NAME_MAX - 1] = '\0'; | |
913 | lsession.session_name[LTTNG_VIEWER_NAME_MAX - 1] = '\0'; | |
914 | session_id = be64toh(lsession.id); | |
915 | ||
916 | BT_COMP_LOGI("Adding session to internal list: " | |
917 | "session-id=%" PRIu64 ", hostname=\"%s\", session-name=\"%s\"", | |
918 | session_id, lsession.hostname, lsession.session_name); | |
919 | ||
920 | if ((strncmp(lsession.session_name, viewer_connection->session_name->str, | |
921 | LTTNG_VIEWER_NAME_MAX) == 0) && | |
922 | (strncmp(lsession.hostname, viewer_connection->target_hostname->str, | |
923 | LTTNG_VIEWER_HOST_NAME_MAX) == 0)) { | |
924 | if (lttng_live_add_session(lttng_live_msg_iter, session_id, lsession.hostname, | |
925 | lsession.session_name)) { | |
926 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Failed to add live session"); | |
927 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
928 | goto end; | |
929 | } | |
930 | } | |
931 | } | |
932 | ||
933 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
7cdc2bab | 934 | |
f79c2d7a | 935 | end: |
4164020e | 936 | return status; |
7cdc2bab MD |
937 | } |
938 | ||
4164020e SM |
939 | enum lttng_live_viewer_status |
940 | lttng_live_create_viewer_session(struct lttng_live_msg_iter *lttng_live_msg_iter) | |
7cdc2bab | 941 | { |
4164020e SM |
942 | struct lttng_viewer_cmd cmd; |
943 | struct lttng_viewer_create_session_response resp; | |
944 | enum lttng_live_viewer_status status; | |
945 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
946 | bt_self_component *self_comp = viewer_connection->self_comp; | |
947 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
948 | ||
949 | BT_COMP_OR_COMP_CLASS_LOGD(self_comp, self_comp_class, "Creating a viewer session: cmd=%s", | |
950 | lttng_viewer_command_string(LTTNG_VIEWER_CREATE_SESSION)); | |
951 | ||
952 | cmd.cmd = htobe32(LTTNG_VIEWER_CREATE_SESSION); | |
953 | cmd.data_size = htobe64((uint64_t) 0); | |
954 | cmd.cmd_version = htobe32(0); | |
955 | ||
956 | status = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); | |
957 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
958 | viewer_handle_send_status(self_comp, self_comp_class, status, "create session command"); | |
959 | goto end; | |
960 | } | |
961 | ||
962 | status = lttng_live_recv(viewer_connection, &resp, sizeof(resp)); | |
963 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
964 | viewer_handle_recv_status(self_comp, self_comp_class, status, "create session reply"); | |
965 | goto end; | |
966 | } | |
967 | ||
968 | if (be32toh(resp.status) != LTTNG_VIEWER_CREATE_SESSION_OK) { | |
969 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Error creating viewer session"); | |
970 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
971 | goto end; | |
972 | } | |
973 | ||
974 | status = lttng_live_query_session_ids(lttng_live_msg_iter); | |
975 | if (status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
976 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Failed to query live viewer session ids"); | |
977 | goto end; | |
978 | } else if (status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { | |
979 | goto end; | |
980 | } | |
7cdc2bab | 981 | |
f79c2d7a | 982 | end: |
4164020e | 983 | return status; |
7cdc2bab MD |
984 | } |
985 | ||
4164020e SM |
986 | static enum lttng_live_viewer_status receive_streams(struct lttng_live_session *session, |
987 | uint32_t stream_count, | |
988 | bt_self_message_iterator *self_msg_iter) | |
7cdc2bab | 989 | { |
4164020e SM |
990 | uint32_t i; |
991 | struct lttng_live_msg_iter *lttng_live_msg_iter = session->lttng_live_msg_iter; | |
992 | enum lttng_live_viewer_status status; | |
993 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
994 | bt_self_component *self_comp = viewer_connection->self_comp; | |
995 | ||
996 | BT_COMP_LOGI("Getting %" PRIu32 " new streams", stream_count); | |
997 | for (i = 0; i < stream_count; i++) { | |
998 | struct lttng_viewer_stream stream; | |
999 | struct lttng_live_stream_iterator *live_stream; | |
1000 | uint64_t stream_id; | |
1001 | uint64_t ctf_trace_id; | |
1002 | ||
1003 | status = lttng_live_recv(viewer_connection, &stream, sizeof(stream)); | |
1004 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1005 | viewer_handle_recv_status(self_comp, NULL, status, "stream reply"); | |
1006 | goto end; | |
1007 | } | |
1008 | stream.path_name[LTTNG_VIEWER_PATH_MAX - 1] = '\0'; | |
1009 | stream.channel_name[LTTNG_VIEWER_NAME_MAX - 1] = '\0'; | |
1010 | stream_id = be64toh(stream.id); | |
1011 | ctf_trace_id = be64toh(stream.ctf_trace_id); | |
1012 | ||
1013 | if (stream.metadata_flag) { | |
1014 | BT_COMP_LOGI(" metadata stream %" PRIu64 " : %s/%s", stream_id, stream.path_name, | |
1015 | stream.channel_name); | |
1016 | if (lttng_live_metadata_create_stream(session, ctf_trace_id, stream_id, | |
1017 | stream.path_name)) { | |
1018 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Error creating metadata stream"); | |
1019 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1020 | goto end; | |
1021 | } | |
1022 | session->lazy_stream_msg_init = true; | |
1023 | } else { | |
1024 | BT_COMP_LOGI(" stream %" PRIu64 " : %s/%s", stream_id, stream.path_name, | |
1025 | stream.channel_name); | |
1026 | live_stream = | |
1027 | lttng_live_stream_iterator_create(session, ctf_trace_id, stream_id, self_msg_iter); | |
1028 | if (!live_stream) { | |
1029 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Error creating stream"); | |
1030 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1031 | goto end; | |
1032 | } | |
1033 | } | |
1034 | } | |
1035 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
7cdc2bab | 1036 | |
f79c2d7a | 1037 | end: |
4164020e | 1038 | return status; |
7cdc2bab MD |
1039 | } |
1040 | ||
4164020e SM |
1041 | enum lttng_live_viewer_status lttng_live_session_attach(struct lttng_live_session *session, |
1042 | bt_self_message_iterator *self_msg_iter) | |
7cdc2bab | 1043 | { |
4164020e SM |
1044 | struct lttng_viewer_cmd cmd; |
1045 | enum lttng_live_viewer_status status; | |
1046 | struct lttng_viewer_attach_session_request rq; | |
1047 | struct lttng_viewer_attach_session_response rp; | |
1048 | struct lttng_live_msg_iter *lttng_live_msg_iter = session->lttng_live_msg_iter; | |
1049 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
1050 | bt_self_component *self_comp = viewer_connection->self_comp; | |
1051 | uint64_t session_id = session->id; | |
1052 | uint32_t streams_count; | |
1053 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); | |
1054 | char cmd_buf[cmd_buf_len]; | |
1055 | ||
1056 | BT_COMP_LOGD("Attaching to session: cmd=%s, session-id=%" PRIu64 ", seek=%s", | |
1057 | lttng_viewer_command_string(LTTNG_VIEWER_ATTACH_SESSION), session_id, | |
1058 | lttng_viewer_seek_string(LTTNG_VIEWER_SEEK_LAST)); | |
1059 | ||
1060 | cmd.cmd = htobe32(LTTNG_VIEWER_ATTACH_SESSION); | |
1061 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1062 | cmd.cmd_version = htobe32(0); | |
1063 | ||
1064 | memset(&rq, 0, sizeof(rq)); | |
1065 | rq.session_id = htobe64(session_id); | |
1066 | // TODO: add cmd line parameter to select seek beginning | |
1067 | // rq.seek = htobe32(LTTNG_VIEWER_SEEK_BEGINNING); | |
1068 | rq.seek = htobe32(LTTNG_VIEWER_SEEK_LAST); | |
1069 | ||
1070 | /* | |
1071 | * Merge the cmd and connection request to prevent a write-write | |
1072 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1073 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1074 | */ | |
1075 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1076 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
1077 | status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); | |
1078 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1079 | viewer_handle_send_status(self_comp, NULL, status, "attach session command"); | |
1080 | goto end; | |
1081 | } | |
1082 | ||
1083 | status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); | |
1084 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1085 | viewer_handle_recv_status(self_comp, NULL, status, "attach session reply"); | |
1086 | goto end; | |
1087 | } | |
1088 | ||
1089 | streams_count = be32toh(rp.streams_count); | |
1090 | switch (be32toh(rp.status)) { | |
1091 | case LTTNG_VIEWER_ATTACH_OK: | |
1092 | break; | |
1093 | case LTTNG_VIEWER_ATTACH_UNK: | |
1094 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Session id %" PRIu64 " is unknown", session_id); | |
1095 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1096 | goto end; | |
1097 | case LTTNG_VIEWER_ATTACH_ALREADY: | |
1098 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "There is already a viewer attached to this session"); | |
1099 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1100 | goto end; | |
1101 | case LTTNG_VIEWER_ATTACH_NOT_LIVE: | |
1102 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Not a live session"); | |
1103 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1104 | goto end; | |
1105 | case LTTNG_VIEWER_ATTACH_SEEK_ERR: | |
1106 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Wrong seek parameter"); | |
1107 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1108 | goto end; | |
1109 | default: | |
1110 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Unknown attach return code %u", be32toh(rp.status)); | |
1111 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1112 | goto end; | |
1113 | } | |
1114 | ||
1115 | /* We receive the initial list of streams. */ | |
1116 | status = receive_streams(session, streams_count, self_msg_iter); | |
1117 | switch (status) { | |
1118 | case LTTNG_LIVE_VIEWER_STATUS_OK: | |
1119 | break; | |
1120 | case LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED: | |
1121 | goto end; | |
1122 | case LTTNG_LIVE_VIEWER_STATUS_ERROR: | |
1123 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Error receiving streams"); | |
1124 | goto end; | |
1125 | default: | |
1126 | bt_common_abort(); | |
1127 | } | |
1128 | ||
1129 | session->attached = true; | |
1130 | session->new_streams_needed = false; | |
7cdc2bab | 1131 | |
eee8e741 | 1132 | end: |
4164020e | 1133 | return status; |
7cdc2bab MD |
1134 | } |
1135 | ||
4164020e | 1136 | enum lttng_live_viewer_status lttng_live_session_detach(struct lttng_live_session *session) |
7cdc2bab | 1137 | { |
4164020e SM |
1138 | struct lttng_viewer_cmd cmd; |
1139 | enum lttng_live_viewer_status status; | |
1140 | struct lttng_viewer_detach_session_request rq; | |
1141 | struct lttng_viewer_detach_session_response rp; | |
1142 | struct lttng_live_msg_iter *lttng_live_msg_iter = session->lttng_live_msg_iter; | |
1143 | bt_self_component *self_comp = session->self_comp; | |
1144 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
1145 | uint64_t session_id = session->id; | |
1146 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); | |
1147 | char cmd_buf[cmd_buf_len]; | |
1148 | ||
1149 | /* | |
1150 | * The session might already be detached and the viewer socket might | |
1151 | * already been closed. This happens when calling this function when | |
1152 | * tearing down the graph after an error. | |
1153 | */ | |
1154 | if (!session->attached || viewer_connection->control_sock == BT_INVALID_SOCKET) { | |
1155 | return LTTNG_LIVE_VIEWER_STATUS_OK; | |
1156 | } | |
1157 | ||
1158 | BT_COMP_LOGD("Detaching from session: cmd=%s, session-id=%" PRIu64, | |
1159 | lttng_viewer_command_string(LTTNG_VIEWER_DETACH_SESSION), session_id); | |
1160 | ||
1161 | cmd.cmd = htobe32(LTTNG_VIEWER_DETACH_SESSION); | |
1162 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1163 | cmd.cmd_version = htobe32(0); | |
1164 | ||
1165 | memset(&rq, 0, sizeof(rq)); | |
1166 | rq.session_id = htobe64(session_id); | |
1167 | ||
1168 | /* | |
1169 | * Merge the cmd and connection request to prevent a write-write | |
1170 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1171 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1172 | */ | |
1173 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1174 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
1175 | status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); | |
1176 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1177 | viewer_handle_send_status(self_comp, NULL, status, "detach session command"); | |
1178 | goto end; | |
1179 | } | |
1180 | ||
1181 | status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); | |
1182 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1183 | viewer_handle_recv_status(self_comp, NULL, status, "detach session reply"); | |
1184 | goto end; | |
1185 | } | |
1186 | ||
1187 | switch (be32toh(rp.status)) { | |
1188 | case LTTNG_VIEWER_DETACH_SESSION_OK: | |
1189 | break; | |
1190 | case LTTNG_VIEWER_DETACH_SESSION_UNK: | |
1191 | BT_COMP_LOGW("Session id %" PRIu64 " is unknown", session_id); | |
1192 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1193 | goto end; | |
1194 | case LTTNG_VIEWER_DETACH_SESSION_ERR: | |
1195 | BT_COMP_LOGW("Error detaching session id %" PRIu64 "", session_id); | |
1196 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1197 | goto end; | |
1198 | default: | |
1199 | BT_COMP_LOGE("Unknown detach return code %u", be32toh(rp.status)); | |
1200 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1201 | goto end; | |
1202 | } | |
1203 | ||
1204 | session->attached = false; | |
1205 | ||
1206 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
7cdc2bab | 1207 | |
f79c2d7a | 1208 | end: |
4164020e | 1209 | return status; |
7cdc2bab MD |
1210 | } |
1211 | ||
4164020e SM |
1212 | enum lttng_live_get_one_metadata_status |
1213 | lttng_live_get_one_metadata_packet(struct lttng_live_trace *trace, FILE *fp, size_t *reply_len) | |
7cdc2bab | 1214 | { |
4164020e SM |
1215 | uint64_t len = 0; |
1216 | enum lttng_live_get_one_metadata_status status; | |
1217 | enum lttng_live_viewer_status viewer_status; | |
1218 | struct lttng_viewer_cmd cmd; | |
1219 | struct lttng_viewer_get_metadata rq; | |
1220 | struct lttng_viewer_metadata_packet rp; | |
1221 | gchar *data = NULL; | |
1222 | ssize_t writelen; | |
1223 | struct lttng_live_session *session = trace->session; | |
1224 | struct lttng_live_msg_iter *lttng_live_msg_iter = session->lttng_live_msg_iter; | |
1225 | struct lttng_live_metadata *metadata = trace->metadata; | |
1226 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
1227 | bt_self_component *self_comp = viewer_connection->self_comp; | |
1228 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); | |
1229 | char cmd_buf[cmd_buf_len]; | |
1230 | ||
1231 | BT_COMP_LOGD("Requesting new metadata for trace:" | |
1232 | "cmd=%s, trace-id=%" PRIu64 ", metadata-stream-id=%" PRIu64, | |
1233 | lttng_viewer_command_string(LTTNG_VIEWER_GET_METADATA), trace->id, | |
1234 | metadata->stream_id); | |
1235 | ||
1236 | rq.stream_id = htobe64(metadata->stream_id); | |
1237 | cmd.cmd = htobe32(LTTNG_VIEWER_GET_METADATA); | |
1238 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1239 | cmd.cmd_version = htobe32(0); | |
1240 | ||
1241 | /* | |
1242 | * Merge the cmd and connection request to prevent a write-write | |
1243 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1244 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1245 | */ | |
1246 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1247 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
1248 | viewer_status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); | |
1249 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1250 | viewer_handle_send_status(self_comp, NULL, viewer_status, "get metadata command"); | |
1251 | status = (enum lttng_live_get_one_metadata_status) viewer_status; | |
1252 | goto end; | |
1253 | } | |
1254 | ||
1255 | viewer_status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); | |
1256 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1257 | viewer_handle_recv_status(self_comp, NULL, viewer_status, "get metadata reply"); | |
1258 | status = (enum lttng_live_get_one_metadata_status) viewer_status; | |
1259 | goto end; | |
1260 | } | |
1261 | ||
1262 | switch (be32toh(rp.status)) { | |
1263 | case LTTNG_VIEWER_METADATA_OK: | |
1264 | BT_COMP_LOGD("Received get_metadata response: ok"); | |
1265 | break; | |
1266 | case LTTNG_VIEWER_NO_NEW_METADATA: | |
1267 | BT_COMP_LOGD("Received get_metadata response: no new"); | |
1268 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_END; | |
1269 | goto end; | |
1270 | case LTTNG_VIEWER_METADATA_ERR: | |
1271 | /* | |
1272 | * The Relayd cannot find this stream id. Maybe its | |
1273 | * gone already. This can happen in short lived UST app | |
1274 | * in a per-pid session. | |
1275 | */ | |
1276 | BT_COMP_LOGD("Received get_metadata response: error"); | |
1277 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_CLOSED; | |
1278 | goto end; | |
1279 | default: | |
1280 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Received get_metadata response: unknown"); | |
1281 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR; | |
1282 | goto end; | |
1283 | } | |
1284 | ||
1285 | len = be64toh(rp.len); | |
c5ce3927 FD |
1286 | if (len == 0) { |
1287 | /* | |
1288 | * We received a `LTTNG_VIEWER_METADATA_OK` with a packet | |
1289 | * length of 0. This means we must try again. This scenario | |
1290 | * arises when a clear command is performed on an lttng session. | |
1291 | */ | |
1292 | BT_COMP_LOGD( | |
1293 | "Expecting a metadata packet of size 0. Retry to get a packet from the relay."); | |
1294 | goto empty_metadata_packet_retry; | |
1295 | } | |
1296 | ||
4164020e SM |
1297 | BT_COMP_LOGD("Writing %" PRIu64 " bytes to metadata", len); |
1298 | if (len <= 0) { | |
1299 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Erroneous response length"); | |
1300 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR; | |
1301 | goto end; | |
1302 | } | |
1303 | ||
1304 | data = g_new0(gchar, len); | |
1305 | if (!data) { | |
1306 | BT_COMP_LOGE_APPEND_CAUSE_ERRNO(self_comp, "Failed to allocate data buffer", "."); | |
1307 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR; | |
1308 | goto end; | |
1309 | } | |
1310 | ||
1311 | viewer_status = lttng_live_recv(viewer_connection, data, len); | |
1312 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1313 | viewer_handle_recv_status(self_comp, NULL, viewer_status, "get metadata packet"); | |
1314 | status = (enum lttng_live_get_one_metadata_status) viewer_status; | |
1315 | goto end; | |
1316 | } | |
1317 | ||
1318 | /* | |
1319 | * Write the metadata to the file handle. | |
1320 | */ | |
1321 | writelen = fwrite(data, sizeof(uint8_t), len, fp); | |
1322 | if (writelen != len) { | |
1323 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Writing in the metadata file stream"); | |
1324 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR; | |
1325 | goto end; | |
1326 | } | |
1327 | ||
c5ce3927 | 1328 | empty_metadata_packet_retry: |
4164020e SM |
1329 | *reply_len = len; |
1330 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_OK; | |
c28512ab | 1331 | |
c28512ab | 1332 | end: |
4164020e SM |
1333 | g_free(data); |
1334 | return status; | |
7cdc2bab MD |
1335 | } |
1336 | ||
1337 | /* | |
1338 | * Assign the fields from a lttng_viewer_index to a packet_index. | |
1339 | */ | |
4164020e SM |
1340 | static void lttng_index_to_packet_index(struct lttng_viewer_index *lindex, |
1341 | struct packet_index *pindex) | |
7cdc2bab | 1342 | { |
4164020e SM |
1343 | BT_ASSERT(lindex); |
1344 | BT_ASSERT(pindex); | |
1345 | ||
1346 | pindex->offset = be64toh(lindex->offset); | |
1347 | pindex->packet_size = be64toh(lindex->packet_size); | |
1348 | pindex->content_size = be64toh(lindex->content_size); | |
1349 | pindex->ts_cycles.timestamp_begin = be64toh(lindex->timestamp_begin); | |
1350 | pindex->ts_cycles.timestamp_end = be64toh(lindex->timestamp_end); | |
1351 | pindex->events_discarded = be64toh(lindex->events_discarded); | |
7cdc2bab MD |
1352 | } |
1353 | ||
4164020e | 1354 | static void lttng_live_need_new_streams(struct lttng_live_msg_iter *lttng_live_msg_iter) |
36e94ad6 | 1355 | { |
4164020e SM |
1356 | uint64_t session_idx; |
1357 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
1358 | ||
1359 | for (session_idx = 0; session_idx < lttng_live_msg_iter->sessions->len; session_idx++) { | |
1360 | struct lttng_live_session *session = | |
1361 | (lttng_live_session *) g_ptr_array_index(lttng_live_msg_iter->sessions, session_idx); | |
1362 | BT_COMP_LOGD("Marking session as needing new streams: " | |
1363 | "session-id=%" PRIu64, | |
1364 | session->id); | |
1365 | session->new_streams_needed = true; | |
1366 | } | |
36e94ad6 FD |
1367 | } |
1368 | ||
4164020e SM |
1369 | enum lttng_live_iterator_status |
1370 | lttng_live_get_next_index(struct lttng_live_msg_iter *lttng_live_msg_iter, | |
1371 | struct lttng_live_stream_iterator *stream, struct packet_index *index) | |
7cdc2bab | 1372 | { |
4164020e SM |
1373 | struct lttng_viewer_cmd cmd; |
1374 | struct lttng_viewer_get_next_index rq; | |
1375 | enum lttng_live_viewer_status viewer_status; | |
1376 | struct lttng_viewer_index rp; | |
1377 | enum lttng_live_iterator_status status; | |
1378 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
1379 | bt_self_component *self_comp = viewer_connection->self_comp; | |
1380 | struct lttng_live_trace *trace = stream->trace; | |
1381 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); | |
1382 | char cmd_buf[cmd_buf_len]; | |
1383 | uint32_t flags, rp_status; | |
1384 | ||
1385 | BT_COMP_LOGD("Requesting next index for stream: cmd=%s, " | |
1386 | "viewer-stream-id=%" PRIu64, | |
1387 | lttng_viewer_command_string(LTTNG_VIEWER_GET_NEXT_INDEX), | |
1388 | stream->viewer_stream_id); | |
1389 | cmd.cmd = htobe32(LTTNG_VIEWER_GET_NEXT_INDEX); | |
1390 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1391 | cmd.cmd_version = htobe32(0); | |
1392 | ||
1393 | memset(&rq, 0, sizeof(rq)); | |
1394 | rq.stream_id = htobe64(stream->viewer_stream_id); | |
1395 | ||
1396 | /* | |
1397 | * Merge the cmd and connection request to prevent a write-write | |
1398 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1399 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1400 | */ | |
1401 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1402 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
1403 | ||
1404 | viewer_status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); | |
1405 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1406 | viewer_handle_send_status(self_comp, NULL, viewer_status, "get next index command"); | |
1407 | goto error; | |
1408 | } | |
1409 | ||
1410 | viewer_status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); | |
1411 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1412 | viewer_handle_recv_status(self_comp, NULL, viewer_status, "get next index reply"); | |
1413 | goto error; | |
1414 | } | |
1415 | ||
1416 | flags = be32toh(rp.flags); | |
1417 | rp_status = be32toh(rp.status); | |
1418 | ||
1419 | BT_COMP_LOGD("Received response from relay daemon: cmd=%s, response=%s", | |
1420 | lttng_viewer_command_string(LTTNG_VIEWER_GET_NEXT_INDEX), | |
1421 | lttng_viewer_next_index_return_code_string(rp_status)); | |
1422 | switch (rp_status) { | |
1423 | case LTTNG_VIEWER_INDEX_INACTIVE: | |
1424 | { | |
1425 | uint64_t ctf_stream_class_id; | |
1426 | ||
1427 | memset(index, 0, sizeof(struct packet_index)); | |
1428 | index->ts_cycles.timestamp_end = be64toh(rp.timestamp_end); | |
1429 | stream->current_inactivity_ts = index->ts_cycles.timestamp_end; | |
1430 | ctf_stream_class_id = be64toh(rp.stream_id); | |
1431 | if (stream->ctf_stream_class_id.is_set) { | |
1432 | BT_ASSERT(stream->ctf_stream_class_id.value == ctf_stream_class_id); | |
1433 | } else { | |
1434 | stream->ctf_stream_class_id.value = ctf_stream_class_id; | |
1435 | stream->ctf_stream_class_id.is_set = true; | |
1436 | } | |
1437 | lttng_live_stream_iterator_set_state(stream, LTTNG_LIVE_STREAM_QUIESCENT); | |
1438 | status = LTTNG_LIVE_ITERATOR_STATUS_OK; | |
1439 | break; | |
1440 | } | |
1441 | case LTTNG_VIEWER_INDEX_OK: | |
1442 | { | |
1443 | uint64_t ctf_stream_class_id; | |
1444 | ||
1445 | lttng_index_to_packet_index(&rp, index); | |
1446 | ctf_stream_class_id = be64toh(rp.stream_id); | |
1447 | if (stream->ctf_stream_class_id.is_set) { | |
1448 | BT_ASSERT(stream->ctf_stream_class_id.value == ctf_stream_class_id); | |
1449 | } else { | |
1450 | stream->ctf_stream_class_id.value = ctf_stream_class_id; | |
1451 | stream->ctf_stream_class_id.is_set = true; | |
1452 | } | |
1453 | ||
1454 | lttng_live_stream_iterator_set_state(stream, LTTNG_LIVE_STREAM_ACTIVE_DATA); | |
1455 | ||
1456 | if (flags & LTTNG_VIEWER_FLAG_NEW_METADATA) { | |
1457 | BT_COMP_LOGD("Marking trace as needing new metadata: " | |
1458 | "response=%s, response-flag=NEW_METADATA, trace-id=%" PRIu64, | |
1459 | lttng_viewer_next_index_return_code_string(rp_status), trace->id); | |
1460 | trace->metadata_stream_state = LTTNG_LIVE_METADATA_STREAM_STATE_NEEDED; | |
1461 | } | |
1462 | if (flags & LTTNG_VIEWER_FLAG_NEW_STREAM) { | |
1463 | BT_COMP_LOGD("Marking all sessions as possibly needing new streams: " | |
1464 | "response=%s, response-flag=NEW_STREAM", | |
1465 | lttng_viewer_next_index_return_code_string(rp_status)); | |
1466 | lttng_live_need_new_streams(lttng_live_msg_iter); | |
1467 | } | |
1468 | status = LTTNG_LIVE_ITERATOR_STATUS_OK; | |
1469 | break; | |
1470 | } | |
1471 | case LTTNG_VIEWER_INDEX_RETRY: | |
1472 | memset(index, 0, sizeof(struct packet_index)); | |
1473 | lttng_live_stream_iterator_set_state(stream, LTTNG_LIVE_STREAM_ACTIVE_NO_DATA); | |
1474 | status = LTTNG_LIVE_ITERATOR_STATUS_AGAIN; | |
1475 | goto end; | |
1476 | case LTTNG_VIEWER_INDEX_HUP: | |
1477 | memset(index, 0, sizeof(struct packet_index)); | |
1478 | index->offset = EOF; | |
1479 | lttng_live_stream_iterator_set_state(stream, LTTNG_LIVE_STREAM_EOF); | |
1480 | stream->has_stream_hung_up = true; | |
1481 | status = LTTNG_LIVE_ITERATOR_STATUS_END; | |
1482 | break; | |
1483 | case LTTNG_VIEWER_INDEX_ERR: | |
1484 | memset(index, 0, sizeof(struct packet_index)); | |
1485 | lttng_live_stream_iterator_set_state(stream, LTTNG_LIVE_STREAM_ACTIVE_NO_DATA); | |
1486 | status = LTTNG_LIVE_ITERATOR_STATUS_ERROR; | |
1487 | goto end; | |
1488 | default: | |
1489 | BT_COMP_LOGD("Received get_next_index response: unknown value"); | |
1490 | memset(index, 0, sizeof(struct packet_index)); | |
1491 | lttng_live_stream_iterator_set_state(stream, LTTNG_LIVE_STREAM_ACTIVE_NO_DATA); | |
1492 | status = LTTNG_LIVE_ITERATOR_STATUS_ERROR; | |
1493 | goto end; | |
1494 | } | |
1495 | goto end; | |
7cdc2bab MD |
1496 | |
1497 | error: | |
4164020e | 1498 | status = viewer_status_to_live_iterator_status(viewer_status); |
f79c2d7a | 1499 | end: |
4164020e | 1500 | return status; |
7cdc2bab MD |
1501 | } |
1502 | ||
4164020e SM |
1503 | enum ctf_msg_iter_medium_status |
1504 | lttng_live_get_stream_bytes(struct lttng_live_msg_iter *lttng_live_msg_iter, | |
1505 | struct lttng_live_stream_iterator *stream, uint8_t *buf, | |
1506 | uint64_t offset, uint64_t req_len, uint64_t *recv_len) | |
7cdc2bab | 1507 | { |
4164020e SM |
1508 | enum ctf_msg_iter_medium_status status; |
1509 | enum lttng_live_viewer_status viewer_status; | |
1510 | struct lttng_viewer_trace_packet rp; | |
1511 | struct lttng_viewer_cmd cmd; | |
1512 | struct lttng_viewer_get_packet rq; | |
1513 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
1514 | bt_self_component *self_comp = viewer_connection->self_comp; | |
1515 | struct lttng_live_trace *trace = stream->trace; | |
1516 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); | |
1517 | char cmd_buf[cmd_buf_len]; | |
1518 | uint32_t flags, rp_status; | |
1519 | ||
1520 | BT_COMP_LOGD("Requesting data from stream: cmd=%s, " | |
1521 | "offset=%" PRIu64 ", request-len=%" PRIu64, | |
1522 | lttng_viewer_command_string(LTTNG_VIEWER_GET_PACKET), offset, req_len); | |
1523 | ||
1524 | cmd.cmd = htobe32(LTTNG_VIEWER_GET_PACKET); | |
1525 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1526 | cmd.cmd_version = htobe32(0); | |
1527 | ||
1528 | memset(&rq, 0, sizeof(rq)); | |
1529 | rq.stream_id = htobe64(stream->viewer_stream_id); | |
1530 | rq.offset = htobe64(offset); | |
1531 | rq.len = htobe32(req_len); | |
1532 | ||
1533 | /* | |
1534 | * Merge the cmd and connection request to prevent a write-write | |
1535 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1536 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1537 | */ | |
1538 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1539 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
1540 | ||
1541 | viewer_status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); | |
1542 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1543 | viewer_handle_send_status(self_comp, NULL, viewer_status, "get data packet command"); | |
1544 | goto error_convert_status; | |
1545 | } | |
1546 | ||
1547 | viewer_status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); | |
1548 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1549 | viewer_handle_recv_status(self_comp, NULL, viewer_status, "get data packet reply"); | |
1550 | goto error_convert_status; | |
1551 | } | |
1552 | ||
1553 | flags = be32toh(rp.flags); | |
1554 | rp_status = be32toh(rp.status); | |
1555 | ||
1556 | BT_COMP_LOGD("Received response from relay daemon: cmd=%s, response=%s", | |
1557 | lttng_viewer_command_string(LTTNG_VIEWER_GET_PACKET), | |
1558 | lttng_viewer_get_packet_return_code_string(rp_status)); | |
1559 | switch (rp_status) { | |
1560 | case LTTNG_VIEWER_GET_PACKET_OK: | |
1561 | req_len = be32toh(rp.len); | |
1562 | BT_COMP_LOGD("Got packet from relay daemon: response=%s, packet-len=%" PRIu64 "", | |
1563 | lttng_viewer_get_packet_return_code_string(rp_status), req_len); | |
4164020e SM |
1564 | break; |
1565 | case LTTNG_VIEWER_GET_PACKET_RETRY: | |
1566 | /* Unimplemented by relay daemon */ | |
1567 | status = CTF_MSG_ITER_MEDIUM_STATUS_AGAIN; | |
1568 | goto end; | |
1569 | case LTTNG_VIEWER_GET_PACKET_ERR: | |
1570 | if (flags & LTTNG_VIEWER_FLAG_NEW_METADATA) { | |
1571 | BT_COMP_LOGD("Marking trace as needing new metadata: " | |
1572 | "response=%s, response-flag=NEW_METADATA, trace-id=%" PRIu64, | |
1573 | lttng_viewer_next_index_return_code_string(rp_status), trace->id); | |
1574 | trace->metadata_stream_state = LTTNG_LIVE_METADATA_STREAM_STATE_NEEDED; | |
1575 | } | |
1576 | if (flags & LTTNG_VIEWER_FLAG_NEW_STREAM) { | |
1577 | BT_COMP_LOGD("Marking all sessions as possibly needing new streams: " | |
1578 | "response=%s, response-flag=NEW_STREAM", | |
1579 | lttng_viewer_next_index_return_code_string(rp_status)); | |
1580 | lttng_live_need_new_streams(lttng_live_msg_iter); | |
1581 | } | |
1582 | if (flags & (LTTNG_VIEWER_FLAG_NEW_METADATA | LTTNG_VIEWER_FLAG_NEW_STREAM)) { | |
1583 | status = CTF_MSG_ITER_MEDIUM_STATUS_AGAIN; | |
1584 | BT_COMP_LOGD("Reply with any one flags set means we should retry: response=%s", | |
1585 | lttng_viewer_get_packet_return_code_string(rp_status)); | |
1586 | goto end; | |
1587 | } | |
1588 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Received get_data_packet response: error"); | |
1589 | status = CTF_MSG_ITER_MEDIUM_STATUS_ERROR; | |
1590 | goto end; | |
1591 | case LTTNG_VIEWER_GET_PACKET_EOF: | |
1592 | status = CTF_MSG_ITER_MEDIUM_STATUS_EOF; | |
1593 | goto end; | |
1594 | default: | |
1595 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Received get_data_packet response: unknown (%d)", | |
1596 | rp_status); | |
1597 | status = CTF_MSG_ITER_MEDIUM_STATUS_ERROR; | |
1598 | goto end; | |
1599 | } | |
1600 | ||
1601 | if (req_len == 0) { | |
1602 | status = CTF_MSG_ITER_MEDIUM_STATUS_ERROR; | |
1603 | goto end; | |
1604 | } | |
1605 | ||
1606 | viewer_status = lttng_live_recv(viewer_connection, buf, req_len); | |
1607 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1608 | viewer_handle_recv_status(self_comp, NULL, viewer_status, "get data packet"); | |
1609 | goto error_convert_status; | |
1610 | } | |
1611 | *recv_len = req_len; | |
1612 | ||
1613 | status = CTF_MSG_ITER_MEDIUM_STATUS_OK; | |
1614 | goto end; | |
f79c2d7a | 1615 | |
535fb48a | 1616 | error_convert_status: |
4164020e | 1617 | status = viewer_status_to_ctf_msg_iter_medium_status(viewer_status); |
f79c2d7a | 1618 | end: |
4164020e | 1619 | return status; |
7cdc2bab MD |
1620 | } |
1621 | ||
1622 | /* | |
1623 | * Request new streams for a session. | |
1624 | */ | |
4164020e SM |
1625 | enum lttng_live_iterator_status |
1626 | lttng_live_session_get_new_streams(struct lttng_live_session *session, | |
1627 | bt_self_message_iterator *self_msg_iter) | |
7cdc2bab | 1628 | { |
4164020e SM |
1629 | enum lttng_live_iterator_status status = LTTNG_LIVE_ITERATOR_STATUS_OK; |
1630 | struct lttng_viewer_cmd cmd; | |
1631 | struct lttng_viewer_new_streams_request rq; | |
1632 | struct lttng_viewer_new_streams_response rp; | |
1633 | struct lttng_live_msg_iter *lttng_live_msg_iter = session->lttng_live_msg_iter; | |
1634 | enum lttng_live_viewer_status viewer_status; | |
1635 | struct live_viewer_connection *viewer_connection = lttng_live_msg_iter->viewer_connection; | |
1636 | bt_self_component *self_comp = viewer_connection->self_comp; | |
1637 | uint32_t streams_count; | |
1638 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); | |
1639 | char cmd_buf[cmd_buf_len]; | |
1640 | ||
1641 | if (!session->new_streams_needed) { | |
1642 | status = LTTNG_LIVE_ITERATOR_STATUS_OK; | |
1643 | goto end; | |
1644 | } | |
1645 | ||
1646 | BT_COMP_LOGD("Requesting new streams for session: cmd=%s, " | |
1647 | "session-id=%" PRIu64, | |
1648 | lttng_viewer_command_string(LTTNG_VIEWER_GET_NEW_STREAMS), session->id); | |
1649 | ||
1650 | cmd.cmd = htobe32(LTTNG_VIEWER_GET_NEW_STREAMS); | |
1651 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1652 | cmd.cmd_version = htobe32(0); | |
1653 | ||
1654 | memset(&rq, 0, sizeof(rq)); | |
1655 | rq.session_id = htobe64(session->id); | |
1656 | ||
1657 | /* | |
1658 | * Merge the cmd and connection request to prevent a write-write | |
1659 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1660 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1661 | */ | |
1662 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1663 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
1664 | ||
1665 | viewer_status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); | |
1666 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1667 | viewer_handle_send_status(self_comp, NULL, viewer_status, "get new streams command"); | |
1668 | status = viewer_status_to_live_iterator_status(viewer_status); | |
1669 | goto end; | |
1670 | } | |
1671 | ||
1672 | viewer_status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); | |
1673 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1674 | viewer_handle_recv_status(self_comp, NULL, viewer_status, "get new streams reply"); | |
1675 | status = viewer_status_to_live_iterator_status(viewer_status); | |
1676 | goto end; | |
1677 | } | |
1678 | ||
1679 | streams_count = be32toh(rp.streams_count); | |
1680 | ||
1681 | switch (be32toh(rp.status)) { | |
1682 | case LTTNG_VIEWER_NEW_STREAMS_OK: | |
1683 | session->new_streams_needed = false; | |
1684 | break; | |
1685 | case LTTNG_VIEWER_NEW_STREAMS_NO_NEW: | |
1686 | session->new_streams_needed = false; | |
1687 | goto end; | |
1688 | case LTTNG_VIEWER_NEW_STREAMS_HUP: | |
1689 | session->new_streams_needed = false; | |
1690 | session->closed = true; | |
1691 | status = LTTNG_LIVE_ITERATOR_STATUS_END; | |
1692 | goto end; | |
1693 | case LTTNG_VIEWER_NEW_STREAMS_ERR: | |
1694 | BT_COMP_LOGD("Received get_new_streams response: error"); | |
1695 | status = LTTNG_LIVE_ITERATOR_STATUS_ERROR; | |
1696 | goto end; | |
1697 | default: | |
1698 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, | |
1699 | "Received get_new_streams response: Unknown:" | |
1700 | "return code %u", | |
1701 | be32toh(rp.status)); | |
1702 | status = LTTNG_LIVE_ITERATOR_STATUS_ERROR; | |
1703 | goto end; | |
1704 | } | |
1705 | ||
1706 | viewer_status = receive_streams(session, streams_count, self_msg_iter); | |
1707 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1708 | viewer_handle_recv_status(self_comp, NULL, viewer_status, "new streams"); | |
1709 | status = viewer_status_to_live_iterator_status(viewer_status); | |
1710 | goto end; | |
1711 | } | |
1712 | ||
1713 | status = LTTNG_LIVE_ITERATOR_STATUS_OK; | |
f79c2d7a | 1714 | end: |
4164020e | 1715 | return status; |
7cdc2bab MD |
1716 | } |
1717 | ||
f79c2d7a | 1718 | enum lttng_live_viewer_status live_viewer_connection_create( |
4164020e SM |
1719 | bt_self_component *self_comp, bt_self_component_class *self_comp_class, |
1720 | bt_logging_level log_level, const char *url, bool in_query, | |
1721 | struct lttng_live_msg_iter *lttng_live_msg_iter, struct live_viewer_connection **viewer) | |
7cdc2bab | 1722 | { |
4164020e SM |
1723 | struct live_viewer_connection *viewer_connection; |
1724 | enum lttng_live_viewer_status status; | |
1725 | ||
1726 | viewer_connection = g_new0(struct live_viewer_connection, 1); | |
1727 | ||
1728 | if (bt_socket_init(log_level) != 0) { | |
1729 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
1730 | "Failed to init socket"); | |
1731 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1732 | goto error; | |
1733 | } | |
1734 | ||
1735 | viewer_connection->log_level = log_level; | |
1736 | ||
1737 | viewer_connection->self_comp = self_comp; | |
1738 | viewer_connection->self_comp_class = self_comp_class; | |
1739 | ||
1740 | viewer_connection->control_sock = BT_INVALID_SOCKET; | |
1741 | viewer_connection->port = -1; | |
1742 | viewer_connection->in_query = in_query; | |
1743 | viewer_connection->lttng_live_msg_iter = lttng_live_msg_iter; | |
1744 | viewer_connection->url = g_string_new(url); | |
1745 | if (!viewer_connection->url) { | |
1746 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
1747 | "Failed to allocate URL buffer"); | |
1748 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
1749 | goto error; | |
1750 | } | |
1751 | ||
1752 | BT_COMP_OR_COMP_CLASS_LOGD(self_comp, self_comp_class, | |
1753 | "Establishing connection to url \"%s\"...", url); | |
1754 | status = lttng_live_connect_viewer(viewer_connection); | |
1755 | /* | |
1756 | * Only print error and append cause in case of error. not in case of | |
1757 | * interruption. | |
1758 | */ | |
1759 | if (status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
1760 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class, | |
1761 | "Failed to establish connection: " | |
1762 | "url=\"%s\"", | |
1763 | url); | |
1764 | goto error; | |
1765 | } else if (status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { | |
1766 | goto error; | |
1767 | } | |
1768 | BT_COMP_OR_COMP_CLASS_LOGD(self_comp, self_comp_class, | |
1769 | "Connection to url \"%s\" is established", url); | |
1770 | ||
1771 | *viewer = viewer_connection; | |
1772 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
1773 | goto end; | |
7cdc2bab | 1774 | |
7cdc2bab | 1775 | error: |
4164020e SM |
1776 | if (viewer_connection) { |
1777 | live_viewer_connection_destroy(viewer_connection); | |
1778 | } | |
f79c2d7a | 1779 | end: |
4164020e | 1780 | return status; |
7cdc2bab MD |
1781 | } |
1782 | ||
4164020e | 1783 | void live_viewer_connection_destroy(struct live_viewer_connection *viewer_connection) |
7cdc2bab | 1784 | { |
4164020e SM |
1785 | bt_self_component *self_comp = viewer_connection->self_comp; |
1786 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
b9e6ec43 | 1787 | |
4164020e SM |
1788 | if (!viewer_connection) { |
1789 | goto end; | |
1790 | } | |
b9e6ec43 | 1791 | |
4164020e SM |
1792 | BT_COMP_OR_COMP_CLASS_LOGD(self_comp, self_comp_class, |
1793 | "Closing connection to relay:" | |
1794 | "relay-url=\"%s\"", | |
1795 | viewer_connection->url->str); | |
ecb4ba8a | 1796 | |
4164020e | 1797 | lttng_live_disconnect_viewer(viewer_connection); |
b9e6ec43 | 1798 | |
4164020e SM |
1799 | if (viewer_connection->url) { |
1800 | g_string_free(viewer_connection->url, true); | |
1801 | } | |
b9e6ec43 | 1802 | |
4164020e SM |
1803 | if (viewer_connection->relay_hostname) { |
1804 | g_string_free(viewer_connection->relay_hostname, true); | |
1805 | } | |
b9e6ec43 | 1806 | |
4164020e SM |
1807 | if (viewer_connection->target_hostname) { |
1808 | g_string_free(viewer_connection->target_hostname, true); | |
1809 | } | |
b9e6ec43 | 1810 | |
4164020e SM |
1811 | if (viewer_connection->session_name) { |
1812 | g_string_free(viewer_connection->session_name, true); | |
1813 | } | |
b9e6ec43 | 1814 | |
4164020e SM |
1815 | if (viewer_connection->proto) { |
1816 | g_string_free(viewer_connection->proto, true); | |
1817 | } | |
ecb4ba8a | 1818 | |
4164020e | 1819 | g_free(viewer_connection); |
1cb3cdd7 | 1820 | |
4164020e | 1821 | bt_socket_fini(); |
b9e6ec43 FD |
1822 | |
1823 | end: | |
4164020e | 1824 | return; |
7cdc2bab | 1825 | } |