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) |
c01594de | 9 | #define BT_LOG_OUTPUT_LEVEL (viewer_connection->log_level) |
350ad6c1 | 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 | |
14f28187 | 29 | #include "lttng-live.h" |
7cdc2bab MD |
30 | #include "viewer-connection.h" |
31 | #include "lttng-viewer-abi.h" | |
32 | #include "data-stream.h" | |
33 | #include "metadata.h" | |
34 | ||
f79c2d7a FD |
35 | #define viewer_handle_send_recv_status(_self_comp, _self_comp_class, \ |
36 | _status, _action, _msg_str) \ | |
37 | do { \ | |
38 | switch (_status) { \ | |
39 | case LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED: \ | |
40 | break; \ | |
41 | case LTTNG_LIVE_VIEWER_STATUS_ERROR: \ | |
42 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(_self_comp, \ | |
43 | _self_comp_class, "Error " _action " " _msg_str); \ | |
44 | break; \ | |
45 | default: \ | |
46 | bt_common_abort(); \ | |
47 | } \ | |
48 | } while (0) | |
49 | ||
50 | #define viewer_handle_send_status(_self_comp, _self_comp_class, _status, _msg_str) \ | |
51 | viewer_handle_send_recv_status(_self_comp, _self_comp_class, _status, \ | |
52 | "sending", _msg_str) | |
53 | ||
54 | #define viewer_handle_recv_status(_self_comp, _self_comp_class, _status, _msg_str) \ | |
55 | viewer_handle_send_recv_status(_self_comp, _self_comp_class, _status, \ | |
56 | "receiving", _msg_str) | |
57 | ||
58 | #define LTTNG_LIVE_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE_ERRNO(_self_comp, \ | |
59 | _self_comp_class, _msg, _fmt, ...) \ | |
60 | do { \ | |
61 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(_self_comp, _self_comp_class, \ | |
62 | _msg ": %s" _fmt, bt_socket_errormsg(), ##__VA_ARGS__); \ | |
63 | } while (0) | |
64 | ||
65 | static inline | |
66 | enum lttng_live_iterator_status viewer_status_to_live_iterator_status( | |
67 | enum lttng_live_viewer_status viewer_status) | |
68 | { | |
69 | switch (viewer_status) { | |
70 | case LTTNG_LIVE_VIEWER_STATUS_OK: | |
71 | return LTTNG_LIVE_ITERATOR_STATUS_OK; | |
72 | case LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED: | |
73 | return LTTNG_LIVE_ITERATOR_STATUS_AGAIN; | |
74 | case LTTNG_LIVE_VIEWER_STATUS_ERROR: | |
75 | return LTTNG_LIVE_ITERATOR_STATUS_ERROR; | |
76 | default: | |
77 | bt_common_abort(); | |
78 | } | |
79 | } | |
80 | ||
81 | static inline | |
82 | enum ctf_msg_iter_medium_status viewer_status_to_ctf_msg_iter_medium_status( | |
83 | enum lttng_live_viewer_status viewer_status) | |
84 | { | |
85 | switch (viewer_status) { | |
86 | case LTTNG_LIVE_VIEWER_STATUS_OK: | |
87 | return CTF_MSG_ITER_MEDIUM_STATUS_OK; | |
88 | case LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED: | |
89 | return CTF_MSG_ITER_MEDIUM_STATUS_AGAIN; | |
90 | case LTTNG_LIVE_VIEWER_STATUS_ERROR: | |
91 | return CTF_MSG_ITER_MEDIUM_STATUS_ERROR; | |
92 | default: | |
93 | bt_common_abort(); | |
94 | } | |
95 | } | |
96 | ||
b197ca37 FD |
97 | static inline |
98 | void viewer_connection_close_socket( | |
99 | struct live_viewer_connection *viewer_connection) | |
100 | { | |
101 | bt_self_component_class *self_comp_class = | |
102 | viewer_connection->self_comp_class; | |
103 | bt_self_component *self_comp = | |
104 | viewer_connection->self_comp; | |
105 | int ret = bt_socket_close(viewer_connection->control_sock); | |
106 | if (ret == -1) { | |
107 | BT_COMP_OR_COMP_CLASS_LOGW_ERRNO( | |
108 | self_comp, self_comp_class, | |
109 | "Error closing viewer connection socket: ", "."); | |
110 | } | |
111 | ||
112 | viewer_connection->control_sock = BT_INVALID_SOCKET; | |
113 | } | |
114 | ||
f79c2d7a FD |
115 | /* |
116 | * This function receives a message from the Relay daemon. | |
117 | * If it received the entire message, it returns _OK, | |
118 | * If it's interrupted, it returns _INTERRUPTED, | |
119 | * otherwise, it returns _ERROR. | |
120 | */ | |
14f28187 | 121 | static |
f79c2d7a FD |
122 | enum lttng_live_viewer_status lttng_live_recv( |
123 | struct live_viewer_connection *viewer_connection, | |
4c66436f | 124 | void *buf, size_t len) |
7cdc2bab | 125 | { |
f79c2d7a FD |
126 | ssize_t received; |
127 | bt_self_component_class *self_comp_class = | |
128 | viewer_connection->self_comp_class; | |
129 | bt_self_component *self_comp = | |
130 | viewer_connection->self_comp; | |
131 | size_t total_received = 0, to_receive = len; | |
14f28187 FD |
132 | struct lttng_live_msg_iter *lttng_live_msg_iter = |
133 | viewer_connection->lttng_live_msg_iter; | |
f79c2d7a | 134 | enum lttng_live_viewer_status status; |
1cb3cdd7 | 135 | BT_SOCKET sock = viewer_connection->control_sock; |
7cdc2bab | 136 | |
f79c2d7a FD |
137 | /* |
138 | * Receive a message from the Relay. | |
139 | */ | |
7cdc2bab | 140 | do { |
f79c2d7a FD |
141 | received = bt_socket_recv(sock, buf + total_received, to_receive, 0); |
142 | if (received == BT_SOCKET_ERROR) { | |
143 | if (bt_socket_interrupted()) { | |
144 | if (lttng_live_graph_is_canceled(lttng_live_msg_iter)) { | |
145 | /* | |
146 | * This interruption was due to a | |
147 | * SIGINT and the graph is being torn | |
148 | * down. | |
149 | */ | |
150 | status = LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED; | |
151 | lttng_live_msg_iter->was_interrupted = true; | |
152 | goto end; | |
153 | } else { | |
154 | /* | |
155 | * A signal was received, but the graph | |
156 | * is not being torn down. Carry on. | |
157 | */ | |
158 | continue; | |
159 | } | |
4c66436f | 160 | } else { |
f79c2d7a | 161 | /* |
b197ca37 FD |
162 | * For any other types of socket error, close |
163 | * the socket and return an error. | |
f79c2d7a FD |
164 | */ |
165 | LTTNG_LIVE_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE_ERRNO( | |
166 | self_comp, self_comp_class, | |
167 | "Error receiving from Relay", "."); | |
b197ca37 FD |
168 | |
169 | viewer_connection_close_socket(viewer_connection); | |
f79c2d7a FD |
170 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
171 | goto end; | |
4c66436f | 172 | } |
f79c2d7a FD |
173 | } else if (received == 0) { |
174 | /* | |
175 | * The recv() call returned 0. This means the | |
176 | * connection was orderly shutdown from the other peer. | |
177 | * If that happens when we are trying to receive | |
178 | * a message from it, it means something when wrong. | |
b197ca37 | 179 | * Close the socket and return an error. |
f79c2d7a | 180 | */ |
f79c2d7a FD |
181 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
182 | self_comp_class, "Remote side has closed connection"); | |
b197ca37 FD |
183 | viewer_connection_close_socket(viewer_connection); |
184 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
f79c2d7a | 185 | goto end; |
4c66436f | 186 | } |
710d900e | 187 | |
f79c2d7a FD |
188 | BT_ASSERT(received <= to_receive); |
189 | total_received += received; | |
190 | to_receive -= received; | |
710d900e | 191 | |
f79c2d7a FD |
192 | } while (to_receive > 0); |
193 | ||
194 | BT_ASSERT(total_received == len); | |
195 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
196 | ||
197 | end: | |
198 | return status; | |
7cdc2bab MD |
199 | } |
200 | ||
f79c2d7a FD |
201 | /* |
202 | * This function sends a message to the Relay daemon. | |
203 | * If it send the message, it returns _OK, | |
204 | * If it's interrupted, it returns _INTERRUPTED, | |
205 | * otherwise, it returns _ERROR. | |
206 | */ | |
14f28187 | 207 | static |
f79c2d7a FD |
208 | enum lttng_live_viewer_status lttng_live_send( |
209 | struct live_viewer_connection *viewer_connection, | |
4c66436f | 210 | const void *buf, size_t len) |
7cdc2bab | 211 | { |
f79c2d7a FD |
212 | enum lttng_live_viewer_status status; |
213 | bt_self_component_class *self_comp_class = | |
214 | viewer_connection->self_comp_class; | |
215 | bt_self_component *self_comp = | |
216 | viewer_connection->self_comp; | |
14f28187 FD |
217 | struct lttng_live_msg_iter *lttng_live_msg_iter = |
218 | viewer_connection->lttng_live_msg_iter; | |
1cb3cdd7 | 219 | BT_SOCKET sock = viewer_connection->control_sock; |
f79c2d7a FD |
220 | size_t to_send = len; |
221 | ssize_t total_sent = 0; | |
222 | ||
223 | do { | |
224 | ssize_t sent = bt_socket_send_nosigpipe(sock, buf + total_sent, | |
225 | to_send); | |
226 | if (sent == BT_SOCKET_ERROR) { | |
227 | if (bt_socket_interrupted()) { | |
228 | if (lttng_live_graph_is_canceled(lttng_live_msg_iter)) { | |
229 | /* | |
230 | * This interruption was a SIGINT and | |
231 | * the graph is being teared down. | |
232 | */ | |
233 | status = LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED; | |
234 | lttng_live_msg_iter->was_interrupted = true; | |
235 | goto end; | |
236 | } else { | |
237 | /* | |
238 | * A signal was received, but the graph | |
239 | * is not being teared down. Carry on. | |
240 | */ | |
241 | continue; | |
242 | } | |
4c66436f | 243 | } else { |
f79c2d7a | 244 | /* |
b197ca37 FD |
245 | * For any other types of socket error, close |
246 | * the socket and return an error. | |
f79c2d7a FD |
247 | */ |
248 | LTTNG_LIVE_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE_ERRNO( | |
249 | self_comp, self_comp_class, | |
250 | "Error sending to Relay", "."); | |
b197ca37 FD |
251 | |
252 | viewer_connection_close_socket(viewer_connection); | |
f79c2d7a FD |
253 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
254 | goto end; | |
4c66436f | 255 | } |
4c66436f | 256 | } |
f79c2d7a FD |
257 | |
258 | BT_ASSERT(sent <= to_send); | |
259 | total_sent += sent; | |
260 | to_send -= sent; | |
261 | ||
262 | } while (to_send > 0); | |
263 | ||
264 | BT_ASSERT(total_sent == len); | |
265 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
266 | ||
267 | end: | |
268 | return status; | |
7cdc2bab MD |
269 | } |
270 | ||
14f28187 FD |
271 | static |
272 | int parse_url(struct live_viewer_connection *viewer_connection) | |
7cdc2bab | 273 | { |
94b828f3 | 274 | char error_buf[256] = { 0 }; |
1419db2b FD |
275 | bt_self_component *self_comp = viewer_connection->self_comp; |
276 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
94b828f3 MD |
277 | struct bt_common_lttng_live_url_parts lttng_live_url_parts = { 0 }; |
278 | int ret = -1; | |
7cdc2bab | 279 | const char *path = viewer_connection->url->str; |
7cdc2bab MD |
280 | |
281 | if (!path) { | |
282 | goto end; | |
283 | } | |
7cdc2bab | 284 | |
0f1979c3 FD |
285 | lttng_live_url_parts = bt_common_parse_lttng_live_url(path, error_buf, |
286 | sizeof(error_buf)); | |
94b828f3 | 287 | if (!lttng_live_url_parts.proto) { |
1419db2b FD |
288 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
289 | self_comp_class,"Invalid LTTng live URL format: %s", | |
290 | error_buf); | |
7cdc2bab MD |
291 | goto end; |
292 | } | |
ecb4ba8a FD |
293 | viewer_connection->proto = lttng_live_url_parts.proto; |
294 | lttng_live_url_parts.proto = NULL; | |
7cdc2bab | 295 | |
0f1979c3 | 296 | viewer_connection->relay_hostname = lttng_live_url_parts.hostname; |
94b828f3 MD |
297 | lttng_live_url_parts.hostname = NULL; |
298 | ||
299 | if (lttng_live_url_parts.port >= 0) { | |
300 | viewer_connection->port = lttng_live_url_parts.port; | |
301 | } else { | |
7cdc2bab MD |
302 | viewer_connection->port = LTTNG_DEFAULT_NETWORK_VIEWER_PORT; |
303 | } | |
304 | ||
0f1979c3 | 305 | viewer_connection->target_hostname = lttng_live_url_parts.target_hostname; |
94b828f3 MD |
306 | lttng_live_url_parts.target_hostname = NULL; |
307 | ||
308 | if (lttng_live_url_parts.session_name) { | |
0f1979c3 | 309 | viewer_connection->session_name = lttng_live_url_parts.session_name; |
94b828f3 | 310 | lttng_live_url_parts.session_name = NULL; |
7cdc2bab MD |
311 | } |
312 | ||
7cdc2bab MD |
313 | ret = 0; |
314 | ||
315 | end: | |
94b828f3 | 316 | bt_common_destroy_lttng_live_url_parts(<tng_live_url_parts); |
7cdc2bab MD |
317 | return ret; |
318 | } | |
319 | ||
14f28187 | 320 | static |
f79c2d7a FD |
321 | enum lttng_live_viewer_status lttng_live_handshake( |
322 | struct live_viewer_connection *viewer_connection) | |
7cdc2bab MD |
323 | { |
324 | struct lttng_viewer_cmd cmd; | |
325 | struct lttng_viewer_connect connect; | |
f79c2d7a | 326 | enum lttng_live_viewer_status status; |
1419db2b FD |
327 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; |
328 | bt_self_component *self_comp = viewer_connection->self_comp; | |
bdcbd52e JR |
329 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(connect); |
330 | char cmd_buf[cmd_buf_len]; | |
7cdc2bab | 331 | |
ecb4ba8a FD |
332 | BT_COMP_OR_COMP_CLASS_LOGD(self_comp, self_comp_class, |
333 | "Handshaking with the Relay: " | |
334 | "major-version=%u, minor-version=%u", | |
335 | LTTNG_LIVE_MAJOR, LTTNG_LIVE_MINOR); | |
336 | ||
7cdc2bab MD |
337 | cmd.cmd = htobe32(LTTNG_VIEWER_CONNECT); |
338 | cmd.data_size = htobe64((uint64_t) sizeof(connect)); | |
339 | cmd.cmd_version = htobe32(0); | |
340 | ||
341 | connect.viewer_session_id = -1ULL; /* will be set on recv */ | |
342 | connect.major = htobe32(LTTNG_LIVE_MAJOR); | |
343 | connect.minor = htobe32(LTTNG_LIVE_MINOR); | |
344 | connect.type = htobe32(LTTNG_VIEWER_CLIENT_COMMAND); | |
345 | ||
bdcbd52e JR |
346 | /* |
347 | * Merge the cmd and connection request to prevent a write-write | |
348 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
349 | * second write to be performed quickly in presence of Nagle's algorithm | |
350 | */ | |
351 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
352 | memcpy(cmd_buf + sizeof(cmd), &connect, sizeof(connect)); | |
7cdc2bab | 353 | |
f79c2d7a FD |
354 | status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); |
355 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
356 | viewer_handle_send_status(self_comp, self_comp_class, | |
357 | status, "viewer connect command"); | |
358 | goto end; | |
7cdc2bab | 359 | } |
f79c2d7a FD |
360 | |
361 | status = lttng_live_recv(viewer_connection, &connect, sizeof(connect)); | |
362 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
363 | viewer_handle_recv_status(self_comp, self_comp_class, | |
364 | status, "viewer connect reply"); | |
365 | goto end; | |
7cdc2bab | 366 | } |
7cdc2bab | 367 | |
ecb4ba8a FD |
368 | BT_COMP_OR_COMP_CLASS_LOGI(self_comp, self_comp_class, |
369 | "Received viewer session ID : %" PRIu64, | |
370 | (uint64_t) be64toh(connect.viewer_session_id)); | |
371 | BT_COMP_OR_COMP_CLASS_LOGI(self_comp, self_comp_class, | |
372 | "Relayd version : %u.%u", be32toh(connect.major), | |
373 | be32toh(connect.minor)); | |
7cdc2bab MD |
374 | |
375 | if (LTTNG_LIVE_MAJOR != be32toh(connect.major)) { | |
1419db2b FD |
376 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
377 | self_comp_class, "Incompatible lttng-relayd protocol"); | |
f79c2d7a FD |
378 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
379 | goto end; | |
7cdc2bab MD |
380 | } |
381 | /* Use the smallest protocol version implemented. */ | |
382 | if (LTTNG_LIVE_MINOR > be32toh(connect.minor)) { | |
383 | viewer_connection->minor = be32toh(connect.minor); | |
384 | } else { | |
385 | viewer_connection->minor = LTTNG_LIVE_MINOR; | |
386 | } | |
387 | viewer_connection->major = LTTNG_LIVE_MAJOR; | |
7cdc2bab | 388 | |
f79c2d7a FD |
389 | status = LTTNG_LIVE_VIEWER_STATUS_OK; |
390 | ||
391 | goto end; | |
392 | ||
393 | end: | |
394 | return status; | |
7cdc2bab MD |
395 | } |
396 | ||
14f28187 | 397 | static |
f79c2d7a | 398 | enum lttng_live_viewer_status lttng_live_connect_viewer( |
36e94ad6 | 399 | struct live_viewer_connection *viewer_connection) |
7cdc2bab MD |
400 | { |
401 | struct hostent *host; | |
402 | struct sockaddr_in server_addr; | |
f79c2d7a | 403 | enum lttng_live_viewer_status status; |
1419db2b FD |
404 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; |
405 | bt_self_component *self_comp = viewer_connection->self_comp; | |
7cdc2bab MD |
406 | |
407 | if (parse_url(viewer_connection)) { | |
1419db2b FD |
408 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
409 | self_comp_class, "Failed to parse URL"); | |
f79c2d7a | 410 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
7cdc2bab MD |
411 | goto error; |
412 | } | |
413 | ||
ecb4ba8a FD |
414 | BT_COMP_OR_COMP_CLASS_LOGD(self_comp, self_comp_class, |
415 | "Connecting to hostname : %s, port : %d, " | |
416 | "target hostname : %s, session name : %s, proto : %s", | |
417 | viewer_connection->relay_hostname->str, | |
418 | viewer_connection->port, | |
419 | !viewer_connection->target_hostname ? | |
420 | "<none>" : viewer_connection->target_hostname->str, | |
421 | !viewer_connection->session_name ? | |
422 | "<none>" : viewer_connection->session_name->str, | |
423 | viewer_connection->proto->str); | |
424 | ||
94b828f3 | 425 | host = gethostbyname(viewer_connection->relay_hostname->str); |
7cdc2bab | 426 | if (!host) { |
1419db2b FD |
427 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
428 | self_comp_class, "Cannot lookup hostname: hostname=\"%s\"", | |
94b828f3 | 429 | viewer_connection->relay_hostname->str); |
f79c2d7a | 430 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
7cdc2bab MD |
431 | goto error; |
432 | } | |
433 | ||
1cb3cdd7 | 434 | if ((viewer_connection->control_sock = socket(AF_INET, SOCK_STREAM, 0)) == BT_INVALID_SOCKET) { |
1419db2b FD |
435 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
436 | self_comp_class, "Socket creation failed: %s", bt_socket_errormsg()); | |
f79c2d7a | 437 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
7cdc2bab MD |
438 | goto error; |
439 | } | |
440 | ||
441 | server_addr.sin_family = AF_INET; | |
442 | server_addr.sin_port = htons(viewer_connection->port); | |
443 | server_addr.sin_addr = *((struct in_addr *) host->h_addr); | |
444 | memset(&(server_addr.sin_zero), 0, 8); | |
445 | ||
446 | if (connect(viewer_connection->control_sock, (struct sockaddr *) &server_addr, | |
1cb3cdd7 | 447 | sizeof(struct sockaddr)) == BT_SOCKET_ERROR) { |
1419db2b FD |
448 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
449 | self_comp_class, "Connection failed: %s", | |
450 | bt_socket_errormsg()); | |
f79c2d7a | 451 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
7cdc2bab MD |
452 | goto error; |
453 | } | |
f79c2d7a FD |
454 | |
455 | status = lttng_live_handshake(viewer_connection); | |
456 | ||
457 | /* | |
458 | * Only print error and append cause in case of error. not in case of | |
459 | * interruption. | |
460 | */ | |
461 | if (status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
1419db2b FD |
462 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
463 | self_comp_class, "Viewer handshake failed"); | |
7cdc2bab | 464 | goto error; |
f79c2d7a FD |
465 | } else if (status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { |
466 | goto end; | |
7cdc2bab MD |
467 | } |
468 | ||
f79c2d7a | 469 | goto end; |
7cdc2bab MD |
470 | |
471 | error: | |
1cb3cdd7 MJ |
472 | if (viewer_connection->control_sock != BT_INVALID_SOCKET) { |
473 | if (bt_socket_close(viewer_connection->control_sock) == BT_SOCKET_ERROR) { | |
ecb4ba8a FD |
474 | BT_COMP_OR_COMP_CLASS_LOGW(self_comp, self_comp_class, |
475 | "Error closing socket: %s.", bt_socket_errormsg()); | |
7cdc2bab MD |
476 | } |
477 | } | |
1cb3cdd7 | 478 | viewer_connection->control_sock = BT_INVALID_SOCKET; |
f79c2d7a FD |
479 | end: |
480 | return status; | |
7cdc2bab MD |
481 | } |
482 | ||
14f28187 FD |
483 | static |
484 | void lttng_live_disconnect_viewer( | |
485 | struct live_viewer_connection *viewer_connection) | |
7cdc2bab | 486 | { |
ecb4ba8a FD |
487 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; |
488 | bt_self_component *self_comp = viewer_connection->self_comp; | |
489 | ||
1cb3cdd7 | 490 | if (viewer_connection->control_sock == BT_INVALID_SOCKET) { |
7cdc2bab MD |
491 | return; |
492 | } | |
1cb3cdd7 | 493 | if (bt_socket_close(viewer_connection->control_sock) == BT_SOCKET_ERROR) { |
ecb4ba8a FD |
494 | BT_COMP_OR_COMP_CLASS_LOGW(self_comp, self_comp_class, |
495 | "Error closing socket: %s", bt_socket_errormsg()); | |
1cb3cdd7 | 496 | viewer_connection->control_sock = BT_INVALID_SOCKET; |
7cdc2bab MD |
497 | } |
498 | } | |
499 | ||
7cdc2bab | 500 | static |
14f28187 | 501 | int list_update_session(bt_value *results, |
7cdc2bab | 502 | const struct lttng_viewer_session *session, |
c01594de | 503 | bool *_found, struct live_viewer_connection *viewer_connection) |
7cdc2bab | 504 | { |
1419db2b FD |
505 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; |
506 | bt_self_component *self_comp = viewer_connection->self_comp; | |
f80e9ec1 FD |
507 | int ret = 0; |
508 | uint64_t i, len; | |
b19ff26f PP |
509 | bt_value *map = NULL; |
510 | bt_value *hostname = NULL; | |
511 | bt_value *session_name = NULL; | |
512 | bt_value *btval = NULL; | |
7cdc2bab MD |
513 | bool found = false; |
514 | ||
393729a6 | 515 | len = bt_value_array_get_length(results); |
7cdc2bab MD |
516 | for (i = 0; i < len; i++) { |
517 | const char *hostname_str = NULL; | |
518 | const char *session_name_str = NULL; | |
519 | ||
f80e9ec1 | 520 | map = bt_value_array_borrow_element_by_index(results, i); |
14f28187 | 521 | hostname = bt_value_map_borrow_entry_value(map, "target-hostname"); |
7cdc2bab | 522 | if (!hostname) { |
1419db2b FD |
523 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
524 | self_comp_class, | |
525 | "Error borrowing \"target-hostname\" entry."); | |
14f28187 | 526 | ret = -1; |
7cdc2bab MD |
527 | goto end; |
528 | } | |
14f28187 | 529 | session_name = bt_value_map_borrow_entry_value(map, "session-name"); |
7cdc2bab | 530 | if (!session_name) { |
1419db2b FD |
531 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
532 | self_comp_class, | |
533 | "Error borrowing \"session-name\" entry."); | |
14f28187 | 534 | ret = -1; |
7cdc2bab MD |
535 | goto end; |
536 | } | |
601b0d3c PP |
537 | hostname_str = bt_value_string_get(hostname); |
538 | session_name_str = bt_value_string_get(session_name); | |
7cdc2bab | 539 | |
2242b43d PP |
540 | if (strcmp(session->hostname, hostname_str) == 0 |
541 | && strcmp(session->session_name, session_name_str) == 0) { | |
7cdc2bab MD |
542 | int64_t val; |
543 | uint32_t streams = be32toh(session->streams); | |
544 | uint32_t clients = be32toh(session->clients); | |
545 | ||
546 | found = true; | |
547 | ||
14f28187 | 548 | btval = bt_value_map_borrow_entry_value(map, "stream-count"); |
7cdc2bab | 549 | if (!btval) { |
1419db2b FD |
550 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE( |
551 | self_comp, self_comp_class, | |
552 | "Error borrowing \"stream-count\" entry."); | |
14f28187 | 553 | ret = -1; |
7cdc2bab MD |
554 | goto end; |
555 | } | |
a91cb83e | 556 | val = bt_value_integer_unsigned_get(btval); |
7cdc2bab MD |
557 | /* sum */ |
558 | val += streams; | |
a91cb83e | 559 | bt_value_integer_unsigned_set(btval, val); |
7cdc2bab | 560 | |
14f28187 | 561 | btval = bt_value_map_borrow_entry_value(map, "client-count"); |
7cdc2bab | 562 | if (!btval) { |
1419db2b FD |
563 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE( |
564 | self_comp, self_comp_class, | |
565 | "Error borrowing \"client-count\" entry."); | |
14f28187 | 566 | ret = -1; |
7cdc2bab MD |
567 | goto end; |
568 | } | |
a91cb83e | 569 | val = bt_value_integer_unsigned_get(btval); |
7cdc2bab | 570 | /* max */ |
91d81473 | 571 | val = bt_max_t(int64_t, clients, val); |
a91cb83e | 572 | bt_value_integer_unsigned_set(btval, val); |
7cdc2bab MD |
573 | } |
574 | ||
7cdc2bab MD |
575 | if (found) { |
576 | break; | |
577 | } | |
578 | } | |
579 | end: | |
7cdc2bab MD |
580 | *_found = found; |
581 | return ret; | |
582 | } | |
583 | ||
584 | static | |
14f28187 | 585 | int list_append_session(bt_value *results, |
7cdc2bab | 586 | GString *base_url, |
c01594de PP |
587 | const struct lttng_viewer_session *session, |
588 | struct live_viewer_connection *viewer_connection) | |
7cdc2bab | 589 | { |
14f28187 | 590 | int ret = 0; |
1419db2b | 591 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; |
d24d5663 PP |
592 | bt_value_map_insert_entry_status insert_status; |
593 | bt_value_array_append_element_status append_status; | |
b19ff26f | 594 | bt_value *map = NULL; |
7cdc2bab MD |
595 | GString *url = NULL; |
596 | bool found = false; | |
597 | ||
598 | /* | |
599 | * If the session already exists, add the stream count to it, | |
600 | * and do max of client counts. | |
601 | */ | |
c01594de | 602 | ret = list_update_session(results, session, &found, viewer_connection); |
14f28187 | 603 | if (ret || found) { |
7cdc2bab MD |
604 | goto end; |
605 | } | |
606 | ||
14f28187 | 607 | map = bt_value_map_create(); |
7cdc2bab | 608 | if (!map) { |
1419db2b FD |
609 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
610 | "Error creating map value."); | |
14f28187 | 611 | ret = -1; |
7cdc2bab MD |
612 | goto end; |
613 | } | |
614 | ||
615 | if (base_url->len < 1) { | |
1419db2b FD |
616 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
617 | "Error: base_url length smaller than 1."); | |
14f28187 | 618 | ret = -1; |
7cdc2bab MD |
619 | goto end; |
620 | } | |
621 | /* | |
622 | * key = "url", | |
623 | * value = <string>, | |
624 | */ | |
625 | url = g_string_new(base_url->str); | |
626 | g_string_append(url, "/host/"); | |
627 | g_string_append(url, session->hostname); | |
628 | g_string_append_c(url, '/'); | |
629 | g_string_append(url, session->session_name); | |
630 | ||
d24d5663 PP |
631 | insert_status = bt_value_map_insert_string_entry(map, "url", url->str); |
632 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
1419db2b FD |
633 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
634 | "Error inserting \"url\" entry."); | |
14f28187 | 635 | ret = -1; |
7cdc2bab MD |
636 | goto end; |
637 | } | |
638 | ||
639 | /* | |
640 | * key = "target-hostname", | |
641 | * value = <string>, | |
642 | */ | |
d24d5663 | 643 | insert_status = bt_value_map_insert_string_entry(map, "target-hostname", |
7cdc2bab | 644 | session->hostname); |
d24d5663 | 645 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { |
1419db2b FD |
646 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
647 | "Error inserting \"target-hostname\" entry."); | |
14f28187 | 648 | ret = -1; |
7cdc2bab MD |
649 | goto end; |
650 | } | |
651 | ||
652 | /* | |
653 | * key = "session-name", | |
654 | * value = <string>, | |
655 | */ | |
d24d5663 | 656 | insert_status = bt_value_map_insert_string_entry(map, "session-name", |
7cdc2bab | 657 | session->session_name); |
d24d5663 | 658 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { |
1419db2b FD |
659 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
660 | "Error inserting \"session-name\" entry."); | |
14f28187 | 661 | ret = -1; |
7cdc2bab MD |
662 | goto end; |
663 | } | |
664 | ||
665 | /* | |
666 | * key = "timer-us", | |
667 | * value = <integer>, | |
668 | */ | |
669 | { | |
670 | uint32_t live_timer = be32toh(session->live_timer); | |
671 | ||
a91cb83e | 672 | insert_status = bt_value_map_insert_unsigned_integer_entry( |
fdd3a2da | 673 | map, "timer-us", live_timer); |
d24d5663 | 674 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { |
1419db2b FD |
675 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
676 | "Error inserting \"timer-us\" entry."); | |
14f28187 | 677 | ret = -1; |
7cdc2bab MD |
678 | goto end; |
679 | } | |
680 | } | |
681 | ||
682 | /* | |
683 | * key = "stream-count", | |
684 | * value = <integer>, | |
685 | */ | |
686 | { | |
687 | uint32_t streams = be32toh(session->streams); | |
688 | ||
a91cb83e | 689 | insert_status = bt_value_map_insert_unsigned_integer_entry(map, |
fdd3a2da | 690 | "stream-count", streams); |
d24d5663 | 691 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { |
1419db2b FD |
692 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
693 | "Error inserting \"stream-count\" entry."); | |
14f28187 | 694 | ret = -1; |
7cdc2bab MD |
695 | goto end; |
696 | } | |
697 | } | |
698 | ||
7cdc2bab MD |
699 | /* |
700 | * key = "client-count", | |
701 | * value = <integer>, | |
702 | */ | |
703 | { | |
704 | uint32_t clients = be32toh(session->clients); | |
705 | ||
a91cb83e | 706 | insert_status = bt_value_map_insert_unsigned_integer_entry(map, |
fdd3a2da | 707 | "client-count", clients); |
d24d5663 | 708 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { |
1419db2b FD |
709 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
710 | "Error inserting \"client-count\" entry."); | |
14f28187 | 711 | ret = -1; |
7cdc2bab MD |
712 | goto end; |
713 | } | |
714 | } | |
715 | ||
d24d5663 PP |
716 | append_status = bt_value_array_append_element(results, map); |
717 | if (append_status != BT_VALUE_ARRAY_APPEND_ELEMENT_STATUS_OK) { | |
1419db2b FD |
718 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
719 | "Error appending map to results."); | |
14f28187 FD |
720 | ret = -1; |
721 | } | |
722 | ||
7cdc2bab MD |
723 | end: |
724 | if (url) { | |
14f28187 | 725 | g_string_free(url, true); |
7cdc2bab | 726 | } |
c5b9b441 | 727 | BT_VALUE_PUT_REF_AND_RESET(map); |
7cdc2bab MD |
728 | return ret; |
729 | } | |
730 | ||
731 | /* | |
732 | * Data structure returned: | |
733 | * | |
734 | * { | |
735 | * <array> = { | |
736 | * [n] = { | |
737 | * <map> = { | |
738 | * { | |
739 | * key = "url", | |
740 | * value = <string>, | |
741 | * }, | |
742 | * { | |
743 | * key = "target-hostname", | |
744 | * value = <string>, | |
745 | * }, | |
746 | * { | |
747 | * key = "session-name", | |
748 | * value = <string>, | |
749 | * }, | |
750 | * { | |
751 | * key = "timer-us", | |
752 | * value = <integer>, | |
753 | * }, | |
754 | * { | |
755 | * key = "stream-count", | |
756 | * value = <integer>, | |
757 | * }, | |
758 | * { | |
759 | * key = "client-count", | |
760 | * value = <integer>, | |
761 | * }, | |
762 | * }, | |
763 | * } | |
764 | * } | |
765 | */ | |
766 | ||
767 | BT_HIDDEN | |
d24d5663 | 768 | bt_component_class_query_method_status live_viewer_connection_list_sessions( |
14f28187 FD |
769 | struct live_viewer_connection *viewer_connection, |
770 | const bt_value **user_result) | |
7cdc2bab | 771 | { |
1419db2b | 772 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; |
d24d5663 PP |
773 | bt_component_class_query_method_status status = |
774 | BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_OK; | |
14f28187 | 775 | bt_value *result = NULL; |
f79c2d7a | 776 | enum lttng_live_viewer_status viewer_status; |
7cdc2bab MD |
777 | struct lttng_viewer_cmd cmd; |
778 | struct lttng_viewer_list_sessions list; | |
779 | uint32_t i, sessions_count; | |
7cdc2bab | 780 | |
14f28187 FD |
781 | result = bt_value_array_create(); |
782 | if (!result) { | |
1419db2b FD |
783 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
784 | "Error creating array"); | |
d24d5663 | 785 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_MEMORY_ERROR; |
7cdc2bab MD |
786 | goto error; |
787 | } | |
788 | ||
789 | cmd.cmd = htobe32(LTTNG_VIEWER_LIST_SESSIONS); | |
790 | cmd.data_size = htobe64((uint64_t) 0); | |
791 | cmd.cmd_version = htobe32(0); | |
792 | ||
f79c2d7a FD |
793 | viewer_status = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); |
794 | if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
1419db2b | 795 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
f79c2d7a | 796 | "Error sending list sessions command"); |
d24d5663 | 797 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; |
7cdc2bab | 798 | goto error; |
f79c2d7a FD |
799 | } else if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { |
800 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_AGAIN; | |
801 | goto error; | |
7cdc2bab | 802 | } |
7cdc2bab | 803 | |
f79c2d7a FD |
804 | viewer_status = lttng_live_recv(viewer_connection, &list, sizeof(list)); |
805 | if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
1419db2b | 806 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
f79c2d7a | 807 | "Error receiving session list"); |
d24d5663 | 808 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; |
7cdc2bab | 809 | goto error; |
f79c2d7a FD |
810 | } else if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { |
811 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_AGAIN; | |
7cdc2bab MD |
812 | goto error; |
813 | } | |
7cdc2bab MD |
814 | |
815 | sessions_count = be32toh(list.sessions_count); | |
816 | for (i = 0; i < sessions_count; i++) { | |
817 | struct lttng_viewer_session lsession; | |
818 | ||
f79c2d7a | 819 | viewer_status = lttng_live_recv(viewer_connection, &lsession, |
14f28187 | 820 | sizeof(lsession)); |
f79c2d7a | 821 | if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { |
1419db2b | 822 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
f79c2d7a | 823 | "Error receiving session:"); |
d24d5663 | 824 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; |
7cdc2bab | 825 | goto error; |
f79c2d7a FD |
826 | } else if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { |
827 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_AGAIN; | |
7cdc2bab MD |
828 | goto error; |
829 | } | |
f79c2d7a | 830 | |
7cdc2bab MD |
831 | lsession.hostname[LTTNG_VIEWER_HOST_NAME_MAX - 1] = '\0'; |
832 | lsession.session_name[LTTNG_VIEWER_NAME_MAX - 1] = '\0'; | |
14f28187 | 833 | if (list_append_session(result, viewer_connection->url, |
c01594de | 834 | &lsession, viewer_connection)) { |
1419db2b FD |
835 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
836 | "Error appending session"); | |
d24d5663 | 837 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; |
7cdc2bab MD |
838 | goto error; |
839 | } | |
840 | } | |
14f28187 FD |
841 | |
842 | *user_result = result; | |
7cdc2bab MD |
843 | goto end; |
844 | error: | |
14f28187 | 845 | BT_VALUE_PUT_REF_AND_RESET(result); |
7cdc2bab | 846 | end: |
14f28187 | 847 | return status; |
7cdc2bab MD |
848 | } |
849 | ||
850 | static | |
f79c2d7a FD |
851 | enum lttng_live_viewer_status lttng_live_query_session_ids( |
852 | struct lttng_live_msg_iter *lttng_live_msg_iter) | |
7cdc2bab MD |
853 | { |
854 | struct lttng_viewer_cmd cmd; | |
855 | struct lttng_viewer_list_sessions list; | |
856 | struct lttng_viewer_session lsession; | |
857 | uint32_t i, sessions_count; | |
7cdc2bab | 858 | uint64_t session_id; |
f79c2d7a | 859 | enum lttng_live_viewer_status status; |
14f28187 | 860 | struct live_viewer_connection *viewer_connection = |
1419db2b FD |
861 | lttng_live_msg_iter->viewer_connection; |
862 | bt_self_component *self_comp = viewer_connection->self_comp; | |
f79c2d7a FD |
863 | bt_self_component_class *self_comp_class = |
864 | viewer_connection->self_comp_class; | |
7cdc2bab | 865 | |
ecb4ba8a FD |
866 | BT_COMP_LOGD("Asking the Relay for the list of sessions"); |
867 | ||
7cdc2bab MD |
868 | cmd.cmd = htobe32(LTTNG_VIEWER_LIST_SESSIONS); |
869 | cmd.data_size = htobe64((uint64_t) 0); | |
870 | cmd.cmd_version = htobe32(0); | |
871 | ||
f79c2d7a FD |
872 | status = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); |
873 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
874 | viewer_handle_send_status(self_comp, self_comp_class, | |
875 | status, "list sessions command"); | |
876 | goto end; | |
7cdc2bab | 877 | } |
7cdc2bab | 878 | |
f79c2d7a FD |
879 | status = lttng_live_recv(viewer_connection, &list, sizeof(list)); |
880 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
881 | viewer_handle_recv_status(self_comp, self_comp_class, | |
882 | status, "session list reply"); | |
883 | goto end; | |
7cdc2bab | 884 | } |
7cdc2bab MD |
885 | |
886 | sessions_count = be32toh(list.sessions_count); | |
887 | for (i = 0; i < sessions_count; i++) { | |
f79c2d7a FD |
888 | status = lttng_live_recv(viewer_connection, &lsession, |
889 | sizeof(lsession)); | |
890 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
891 | viewer_handle_recv_status(self_comp, self_comp_class, | |
892 | status, "session reply"); | |
893 | goto end; | |
7cdc2bab | 894 | } |
7cdc2bab MD |
895 | lsession.hostname[LTTNG_VIEWER_HOST_NAME_MAX - 1] = '\0'; |
896 | lsession.session_name[LTTNG_VIEWER_NAME_MAX - 1] = '\0'; | |
897 | session_id = be64toh(lsession.id); | |
898 | ||
ecb4ba8a FD |
899 | BT_COMP_LOGI("Adding session to internal list: " |
900 | "session-id=%" PRIu64 ", hostname=\"%s\", session-name=\"%s\"", | |
06994c71 MD |
901 | session_id, lsession.hostname, lsession.session_name); |
902 | ||
7cdc2bab | 903 | if ((strncmp(lsession.session_name, |
94b828f3 | 904 | viewer_connection->session_name->str, |
1cb3cdd7 | 905 | LTTNG_VIEWER_NAME_MAX) == 0) && (strncmp(lsession.hostname, |
94b828f3 | 906 | viewer_connection->target_hostname->str, |
1cb3cdd7 | 907 | LTTNG_VIEWER_HOST_NAME_MAX) == 0)) { |
ecb4ba8a | 908 | |
14f28187 | 909 | if (lttng_live_add_session(lttng_live_msg_iter, session_id, |
06994c71 MD |
910 | lsession.hostname, |
911 | lsession.session_name)) { | |
1419db2b FD |
912 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
913 | "Failed to add live session"); | |
f79c2d7a FD |
914 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
915 | goto end; | |
7cdc2bab MD |
916 | } |
917 | } | |
918 | } | |
919 | ||
f79c2d7a | 920 | status = LTTNG_LIVE_VIEWER_STATUS_OK; |
7cdc2bab | 921 | |
f79c2d7a FD |
922 | end: |
923 | return status; | |
7cdc2bab MD |
924 | } |
925 | ||
926 | BT_HIDDEN | |
f79c2d7a | 927 | enum lttng_live_viewer_status lttng_live_create_viewer_session( |
14f28187 | 928 | struct lttng_live_msg_iter *lttng_live_msg_iter) |
7cdc2bab MD |
929 | { |
930 | struct lttng_viewer_cmd cmd; | |
931 | struct lttng_viewer_create_session_response resp; | |
f79c2d7a | 932 | enum lttng_live_viewer_status status; |
14f28187 | 933 | struct live_viewer_connection *viewer_connection = |
1419db2b FD |
934 | lttng_live_msg_iter->viewer_connection; |
935 | bt_self_component *self_comp = viewer_connection->self_comp; | |
f79c2d7a FD |
936 | bt_self_component_class *self_comp_class = |
937 | viewer_connection->self_comp_class; | |
7cdc2bab | 938 | |
ecb4ba8a FD |
939 | BT_COMP_OR_COMP_CLASS_LOGD(self_comp, self_comp_class, |
940 | "Creating a viewer session"); | |
941 | ||
7cdc2bab MD |
942 | cmd.cmd = htobe32(LTTNG_VIEWER_CREATE_SESSION); |
943 | cmd.data_size = htobe64((uint64_t) 0); | |
944 | cmd.cmd_version = htobe32(0); | |
945 | ||
f79c2d7a FD |
946 | status = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); |
947 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
948 | viewer_handle_send_status(self_comp, self_comp_class, | |
949 | status, "create session command"); | |
950 | goto end; | |
7cdc2bab | 951 | } |
7cdc2bab | 952 | |
f79c2d7a FD |
953 | status = lttng_live_recv(viewer_connection, &resp, sizeof(resp)); |
954 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
955 | viewer_handle_recv_status(self_comp, self_comp_class, | |
956 | status, "create session reply"); | |
957 | goto end; | |
7cdc2bab | 958 | } |
7cdc2bab MD |
959 | |
960 | if (be32toh(resp.status) != LTTNG_VIEWER_CREATE_SESSION_OK) { | |
1419db2b FD |
961 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
962 | "Error creating viewer session"); | |
f79c2d7a FD |
963 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
964 | goto end; | |
7cdc2bab | 965 | } |
f79c2d7a FD |
966 | |
967 | status = lttng_live_query_session_ids(lttng_live_msg_iter); | |
968 | if (status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
1419db2b FD |
969 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
970 | "Failed to query live viewer session ids"); | |
f79c2d7a FD |
971 | goto end; |
972 | } else if (status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { | |
973 | goto end; | |
7cdc2bab MD |
974 | } |
975 | ||
f79c2d7a FD |
976 | end: |
977 | return status; | |
7cdc2bab MD |
978 | } |
979 | ||
980 | static | |
f79c2d7a | 981 | enum lttng_live_viewer_status receive_streams(struct lttng_live_session *session, |
851de941 SM |
982 | uint32_t stream_count, |
983 | bt_self_message_iterator *self_msg_iter) | |
7cdc2bab | 984 | { |
7cdc2bab | 985 | uint32_t i; |
14f28187 | 986 | struct lttng_live_msg_iter *lttng_live_msg_iter = |
0f1979c3 | 987 | session->lttng_live_msg_iter; |
f79c2d7a | 988 | enum lttng_live_viewer_status status; |
14f28187 | 989 | struct live_viewer_connection *viewer_connection = |
0f1979c3 | 990 | lttng_live_msg_iter->viewer_connection; |
1419db2b | 991 | bt_self_component *self_comp = viewer_connection->self_comp; |
7cdc2bab | 992 | |
2ece7dd0 | 993 | BT_COMP_LOGI("Getting %" PRIu32 " new streams:", stream_count); |
7cdc2bab MD |
994 | for (i = 0; i < stream_count; i++) { |
995 | struct lttng_viewer_stream stream; | |
996 | struct lttng_live_stream_iterator *live_stream; | |
997 | uint64_t stream_id; | |
998 | uint64_t ctf_trace_id; | |
999 | ||
f79c2d7a FD |
1000 | status = lttng_live_recv(viewer_connection, &stream, |
1001 | sizeof(stream)); | |
1002 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1003 | viewer_handle_recv_status(self_comp, NULL, | |
1004 | status, "stream reply"); | |
1005 | goto end; | |
7cdc2bab | 1006 | } |
7cdc2bab MD |
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) { | |
2ece7dd0 | 1013 | BT_COMP_LOGI(" metadata stream %" PRIu64 " : %s/%s", |
0f1979c3 | 1014 | stream_id, stream.path_name, stream.channel_name); |
7cdc2bab | 1015 | if (lttng_live_metadata_create_stream(session, |
06994c71 MD |
1016 | ctf_trace_id, stream_id, |
1017 | stream.path_name)) { | |
1419db2b FD |
1018 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1019 | "Error creating metadata stream"); | |
f79c2d7a FD |
1020 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
1021 | goto end; | |
7cdc2bab | 1022 | } |
d6e69534 | 1023 | session->lazy_stream_msg_init = true; |
7cdc2bab | 1024 | } else { |
2ece7dd0 | 1025 | BT_COMP_LOGI(" stream %" PRIu64 " : %s/%s", |
0f1979c3 | 1026 | stream_id, stream.path_name, stream.channel_name); |
7cdc2bab | 1027 | live_stream = lttng_live_stream_iterator_create(session, |
851de941 | 1028 | ctf_trace_id, stream_id, self_msg_iter); |
7cdc2bab | 1029 | if (!live_stream) { |
1419db2b FD |
1030 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1031 | "Error creating stream"); | |
f79c2d7a FD |
1032 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
1033 | goto end; | |
7cdc2bab MD |
1034 | } |
1035 | } | |
1036 | } | |
f79c2d7a | 1037 | status = LTTNG_LIVE_VIEWER_STATUS_OK; |
7cdc2bab | 1038 | |
f79c2d7a FD |
1039 | end: |
1040 | return status; | |
7cdc2bab MD |
1041 | } |
1042 | ||
1043 | BT_HIDDEN | |
36e94ad6 | 1044 | enum lttng_live_viewer_status lttng_live_session_attach( |
851de941 SM |
1045 | struct lttng_live_session *session, |
1046 | bt_self_message_iterator *self_msg_iter) | |
7cdc2bab MD |
1047 | { |
1048 | struct lttng_viewer_cmd cmd; | |
f79c2d7a | 1049 | enum lttng_live_viewer_status status; |
7cdc2bab MD |
1050 | struct lttng_viewer_attach_session_request rq; |
1051 | struct lttng_viewer_attach_session_response rp; | |
0f1979c3 FD |
1052 | struct lttng_live_msg_iter *lttng_live_msg_iter = |
1053 | session->lttng_live_msg_iter; | |
14f28187 | 1054 | struct live_viewer_connection *viewer_connection = |
0f1979c3 | 1055 | lttng_live_msg_iter->viewer_connection; |
1419db2b | 1056 | bt_self_component *self_comp = viewer_connection->self_comp; |
7cdc2bab MD |
1057 | uint64_t session_id = session->id; |
1058 | uint32_t streams_count; | |
bdcbd52e JR |
1059 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); |
1060 | char cmd_buf[cmd_buf_len]; | |
7cdc2bab | 1061 | |
ecb4ba8a FD |
1062 | BT_COMP_LOGD("Attaching to session: session-id=%"PRIu64, session_id); |
1063 | ||
7cdc2bab MD |
1064 | cmd.cmd = htobe32(LTTNG_VIEWER_ATTACH_SESSION); |
1065 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1066 | cmd.cmd_version = htobe32(0); | |
1067 | ||
1068 | memset(&rq, 0, sizeof(rq)); | |
1069 | rq.session_id = htobe64(session_id); | |
1070 | // TODO: add cmd line parameter to select seek beginning | |
1071 | // rq.seek = htobe32(LTTNG_VIEWER_SEEK_BEGINNING); | |
1072 | rq.seek = htobe32(LTTNG_VIEWER_SEEK_LAST); | |
1073 | ||
bdcbd52e JR |
1074 | /* |
1075 | * Merge the cmd and connection request to prevent a write-write | |
1076 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1077 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1078 | */ | |
1079 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1080 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
f79c2d7a FD |
1081 | status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); |
1082 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1083 | viewer_handle_send_status(self_comp, NULL, | |
1084 | status, "attach session command"); | |
1085 | goto end; | |
7cdc2bab | 1086 | } |
7cdc2bab | 1087 | |
f79c2d7a FD |
1088 | status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); |
1089 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1090 | viewer_handle_recv_status(self_comp, NULL, | |
1091 | status, "attach session reply"); | |
1092 | goto end; | |
7cdc2bab | 1093 | } |
7cdc2bab MD |
1094 | |
1095 | streams_count = be32toh(rp.streams_count); | |
1096 | switch(be32toh(rp.status)) { | |
1097 | case LTTNG_VIEWER_ATTACH_OK: | |
1098 | break; | |
1099 | case LTTNG_VIEWER_ATTACH_UNK: | |
1419db2b FD |
1100 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1101 | "Session id %" PRIu64 " is unknown", session_id); | |
f79c2d7a FD |
1102 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
1103 | goto end; | |
7cdc2bab | 1104 | case LTTNG_VIEWER_ATTACH_ALREADY: |
1419db2b FD |
1105 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1106 | "There is already a viewer attached to this session"); | |
f79c2d7a FD |
1107 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
1108 | goto end; | |
7cdc2bab | 1109 | case LTTNG_VIEWER_ATTACH_NOT_LIVE: |
1419db2b | 1110 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Not a live session"); |
f79c2d7a FD |
1111 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
1112 | goto end; | |
7cdc2bab | 1113 | case LTTNG_VIEWER_ATTACH_SEEK_ERR: |
1419db2b | 1114 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Wrong seek parameter"); |
f79c2d7a FD |
1115 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
1116 | goto end; | |
7cdc2bab | 1117 | default: |
1419db2b FD |
1118 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1119 | "Unknown attach return code %u", be32toh(rp.status)); | |
f79c2d7a FD |
1120 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
1121 | goto end; | |
7cdc2bab MD |
1122 | } |
1123 | ||
1124 | /* We receive the initial list of streams. */ | |
f79c2d7a FD |
1125 | status = receive_streams(session, streams_count, self_msg_iter); |
1126 | switch (status) { | |
1127 | case LTTNG_LIVE_VIEWER_STATUS_OK: | |
1128 | break; | |
1129 | case LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED: | |
1130 | goto end; | |
1131 | case LTTNG_LIVE_VIEWER_STATUS_ERROR: | |
1419db2b | 1132 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Error receiving streams"); |
f79c2d7a FD |
1133 | goto end; |
1134 | default: | |
1135 | bt_common_abort(); | |
7cdc2bab MD |
1136 | } |
1137 | ||
1138 | session->attached = true; | |
1139 | session->new_streams_needed = false; | |
1140 | ||
eee8e741 | 1141 | end: |
f79c2d7a | 1142 | return status; |
7cdc2bab MD |
1143 | } |
1144 | ||
1145 | BT_HIDDEN | |
36e94ad6 | 1146 | enum lttng_live_viewer_status lttng_live_session_detach( |
f79c2d7a | 1147 | struct lttng_live_session *session) |
7cdc2bab MD |
1148 | { |
1149 | struct lttng_viewer_cmd cmd; | |
f79c2d7a | 1150 | enum lttng_live_viewer_status status; |
7cdc2bab MD |
1151 | struct lttng_viewer_detach_session_request rq; |
1152 | struct lttng_viewer_detach_session_response rp; | |
0f1979c3 FD |
1153 | struct lttng_live_msg_iter *lttng_live_msg_iter = |
1154 | session->lttng_live_msg_iter; | |
f79c2d7a | 1155 | bt_self_component *self_comp = session->self_comp; |
14f28187 | 1156 | struct live_viewer_connection *viewer_connection = |
0f1979c3 | 1157 | lttng_live_msg_iter->viewer_connection; |
7cdc2bab | 1158 | uint64_t session_id = session->id; |
bdcbd52e JR |
1159 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); |
1160 | char cmd_buf[cmd_buf_len]; | |
7cdc2bab | 1161 | |
b197ca37 FD |
1162 | /* |
1163 | * The session might already be detached and the viewer socket might | |
1164 | * already been closed. This happens when calling this function when | |
1165 | * tearing down the graph after an error. | |
1166 | */ | |
1167 | if (!session->attached || viewer_connection->control_sock == BT_INVALID_SOCKET) { | |
7cdc2bab MD |
1168 | return 0; |
1169 | } | |
1170 | ||
1171 | cmd.cmd = htobe32(LTTNG_VIEWER_DETACH_SESSION); | |
1172 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1173 | cmd.cmd_version = htobe32(0); | |
1174 | ||
1175 | memset(&rq, 0, sizeof(rq)); | |
1176 | rq.session_id = htobe64(session_id); | |
1177 | ||
bdcbd52e JR |
1178 | /* |
1179 | * Merge the cmd and connection request to prevent a write-write | |
1180 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1181 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1182 | */ | |
1183 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1184 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
f79c2d7a FD |
1185 | status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); |
1186 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1187 | viewer_handle_send_status(self_comp, NULL, | |
1188 | status, "detach session command"); | |
1189 | goto end; | |
7cdc2bab | 1190 | } |
7cdc2bab | 1191 | |
f79c2d7a FD |
1192 | status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); |
1193 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1194 | viewer_handle_recv_status(self_comp, NULL, | |
1195 | status, "detach session reply"); | |
1196 | goto end; | |
7cdc2bab | 1197 | } |
7cdc2bab MD |
1198 | |
1199 | switch(be32toh(rp.status)) { | |
1200 | case LTTNG_VIEWER_DETACH_SESSION_OK: | |
1201 | break; | |
1202 | case LTTNG_VIEWER_DETACH_SESSION_UNK: | |
2ece7dd0 | 1203 | BT_COMP_LOGW("Session id %" PRIu64 " is unknown", session_id); |
f79c2d7a FD |
1204 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
1205 | goto end; | |
7cdc2bab | 1206 | case LTTNG_VIEWER_DETACH_SESSION_ERR: |
2ece7dd0 | 1207 | BT_COMP_LOGW("Error detaching session id %" PRIu64 "", session_id); |
f79c2d7a FD |
1208 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
1209 | goto end; | |
7cdc2bab | 1210 | default: |
2ece7dd0 | 1211 | BT_COMP_LOGE("Unknown detach return code %u", be32toh(rp.status)); |
f79c2d7a FD |
1212 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
1213 | goto end; | |
7cdc2bab MD |
1214 | } |
1215 | ||
1216 | session->attached = false; | |
1217 | ||
f79c2d7a | 1218 | status = LTTNG_LIVE_VIEWER_STATUS_OK; |
7cdc2bab | 1219 | |
f79c2d7a FD |
1220 | end: |
1221 | return status; | |
7cdc2bab MD |
1222 | } |
1223 | ||
1224 | BT_HIDDEN | |
c28512ab FD |
1225 | enum lttng_live_get_one_metadata_status lttng_live_get_one_metadata_packet( |
1226 | struct lttng_live_trace *trace, FILE *fp, size_t *reply_len) | |
7cdc2bab MD |
1227 | { |
1228 | uint64_t len = 0; | |
f79c2d7a FD |
1229 | enum lttng_live_get_one_metadata_status status; |
1230 | enum lttng_live_viewer_status viewer_status; | |
7cdc2bab MD |
1231 | struct lttng_viewer_cmd cmd; |
1232 | struct lttng_viewer_get_metadata rq; | |
1233 | struct lttng_viewer_metadata_packet rp; | |
b7370030 | 1234 | gchar *data = NULL; |
0e73b4c2 | 1235 | ssize_t writelen; |
7cdc2bab | 1236 | struct lttng_live_session *session = trace->session; |
0f1979c3 FD |
1237 | struct lttng_live_msg_iter *lttng_live_msg_iter = |
1238 | session->lttng_live_msg_iter; | |
7cdc2bab | 1239 | struct lttng_live_metadata *metadata = trace->metadata; |
14f28187 | 1240 | struct live_viewer_connection *viewer_connection = |
0f1979c3 | 1241 | lttng_live_msg_iter->viewer_connection; |
1419db2b | 1242 | bt_self_component *self_comp = viewer_connection->self_comp; |
bdcbd52e JR |
1243 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); |
1244 | char cmd_buf[cmd_buf_len]; | |
7cdc2bab | 1245 | |
ecb4ba8a FD |
1246 | BT_COMP_LOGD("Requesting new metadata for trace: " |
1247 | "trace-id=%"PRIu64", metadata-stream-id=%"PRIu64, | |
1248 | trace->id, metadata->stream_id); | |
1249 | ||
7cdc2bab MD |
1250 | rq.stream_id = htobe64(metadata->stream_id); |
1251 | cmd.cmd = htobe32(LTTNG_VIEWER_GET_METADATA); | |
1252 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1253 | cmd.cmd_version = htobe32(0); | |
1254 | ||
bdcbd52e JR |
1255 | /* |
1256 | * Merge the cmd and connection request to prevent a write-write | |
1257 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1258 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1259 | */ | |
1260 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1261 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
f79c2d7a FD |
1262 | viewer_status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); |
1263 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1264 | viewer_handle_send_status(self_comp, NULL, | |
1265 | viewer_status, "get metadata command"); | |
1266 | status = (enum lttng_live_get_one_metadata_status) viewer_status; | |
1267 | goto end; | |
7cdc2bab | 1268 | } |
7cdc2bab | 1269 | |
f79c2d7a FD |
1270 | viewer_status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); |
1271 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1272 | viewer_handle_recv_status(self_comp, NULL, | |
1273 | viewer_status, "get metadata reply"); | |
1274 | status = (enum lttng_live_get_one_metadata_status) viewer_status; | |
1275 | goto end; | |
7cdc2bab | 1276 | } |
7cdc2bab MD |
1277 | |
1278 | switch (be32toh(rp.status)) { | |
1279 | case LTTNG_VIEWER_METADATA_OK: | |
1419db2b | 1280 | BT_COMP_LOGD("Received get_metadata response: ok"); |
7cdc2bab MD |
1281 | break; |
1282 | case LTTNG_VIEWER_NO_NEW_METADATA: | |
c28512ab | 1283 | BT_COMP_LOGD("Received get_metadata response: no new"); |
f79c2d7a | 1284 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_END; |
7cdc2bab MD |
1285 | goto end; |
1286 | case LTTNG_VIEWER_METADATA_ERR: | |
c28512ab FD |
1287 | /* |
1288 | * The Relayd cannot find this stream id. Maybe its | |
1289 | * gone already. This can happen in short lived UST app | |
1290 | * in a per-pid session. | |
1291 | */ | |
1292 | BT_COMP_LOGD("Received get_metadata response: error"); | |
f79c2d7a | 1293 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_CLOSED; |
c28512ab | 1294 | goto end; |
7cdc2bab | 1295 | default: |
1419db2b FD |
1296 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1297 | "Received get_metadata response: unknown"); | |
f79c2d7a | 1298 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR; |
b7370030 | 1299 | goto end; |
7cdc2bab MD |
1300 | } |
1301 | ||
1302 | len = be64toh(rp.len); | |
2ece7dd0 | 1303 | BT_COMP_LOGD("Writing %" PRIu64" bytes to metadata", len); |
7cdc2bab | 1304 | if (len <= 0) { |
1419db2b FD |
1305 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1306 | "Erroneous response length"); | |
f79c2d7a | 1307 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR; |
b7370030 | 1308 | goto end; |
7cdc2bab MD |
1309 | } |
1310 | ||
b7370030 | 1311 | data = g_new0(gchar, len); |
7cdc2bab | 1312 | if (!data) { |
1419db2b FD |
1313 | BT_COMP_LOGE_APPEND_CAUSE_ERRNO(self_comp, |
1314 | "Failed to allocate data buffer", "."); | |
f79c2d7a | 1315 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR; |
b7370030 | 1316 | goto end; |
7cdc2bab | 1317 | } |
f79c2d7a FD |
1318 | |
1319 | viewer_status = lttng_live_recv(viewer_connection, data, len); | |
1320 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1321 | viewer_handle_recv_status(self_comp, NULL, | |
1322 | viewer_status, "get metadata packet"); | |
1323 | status = (enum lttng_live_get_one_metadata_status) viewer_status; | |
b7370030 | 1324 | goto end; |
7cdc2bab | 1325 | } |
7cdc2bab | 1326 | |
f79c2d7a FD |
1327 | /* |
1328 | * Write the metadata to the file handle. | |
1329 | */ | |
0e73b4c2 FD |
1330 | writelen = fwrite(data, sizeof(uint8_t), len, fp); |
1331 | if (writelen != len) { | |
1419db2b FD |
1332 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1333 | "Writing in the metadata file stream"); | |
f79c2d7a | 1334 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR; |
b7370030 | 1335 | goto end; |
7cdc2bab | 1336 | } |
0e73b4c2 | 1337 | |
c28512ab | 1338 | *reply_len = len; |
f79c2d7a | 1339 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_OK; |
c28512ab | 1340 | |
c28512ab | 1341 | end: |
b7370030 | 1342 | g_free(data); |
f79c2d7a | 1343 | return status; |
7cdc2bab MD |
1344 | } |
1345 | ||
1346 | /* | |
1347 | * Assign the fields from a lttng_viewer_index to a packet_index. | |
1348 | */ | |
1349 | static | |
1350 | void lttng_index_to_packet_index(struct lttng_viewer_index *lindex, | |
1351 | struct packet_index *pindex) | |
1352 | { | |
f6ccaed9 PP |
1353 | BT_ASSERT(lindex); |
1354 | BT_ASSERT(pindex); | |
7cdc2bab MD |
1355 | |
1356 | pindex->offset = be64toh(lindex->offset); | |
1357 | pindex->packet_size = be64toh(lindex->packet_size); | |
1358 | pindex->content_size = be64toh(lindex->content_size); | |
1359 | pindex->ts_cycles.timestamp_begin = be64toh(lindex->timestamp_begin); | |
1360 | pindex->ts_cycles.timestamp_end = be64toh(lindex->timestamp_end); | |
1361 | pindex->events_discarded = be64toh(lindex->events_discarded); | |
1362 | } | |
1363 | ||
36e94ad6 FD |
1364 | static |
1365 | void lttng_live_need_new_streams(struct lttng_live_msg_iter *lttng_live_msg_iter) | |
1366 | { | |
1367 | uint64_t session_idx; | |
1368 | ||
1369 | for (session_idx = 0; session_idx < lttng_live_msg_iter->sessions->len; | |
1370 | session_idx++) { | |
1371 | struct lttng_live_session *session = | |
1372 | g_ptr_array_index(lttng_live_msg_iter->sessions, session_idx); | |
1373 | session->new_streams_needed = true; | |
1374 | } | |
1375 | } | |
1376 | ||
7cdc2bab | 1377 | BT_HIDDEN |
14f28187 FD |
1378 | enum lttng_live_iterator_status lttng_live_get_next_index( |
1379 | struct lttng_live_msg_iter *lttng_live_msg_iter, | |
7cdc2bab MD |
1380 | struct lttng_live_stream_iterator *stream, |
1381 | struct packet_index *index) | |
1382 | { | |
1383 | struct lttng_viewer_cmd cmd; | |
1384 | struct lttng_viewer_get_next_index rq; | |
f79c2d7a | 1385 | enum lttng_live_viewer_status viewer_status; |
7cdc2bab | 1386 | struct lttng_viewer_index rp; |
f79c2d7a | 1387 | enum lttng_live_iterator_status status; |
14f28187 | 1388 | struct live_viewer_connection *viewer_connection = |
1419db2b FD |
1389 | lttng_live_msg_iter->viewer_connection; |
1390 | bt_self_component *self_comp = viewer_connection->self_comp; | |
7cdc2bab | 1391 | struct lttng_live_trace *trace = stream->trace; |
bdcbd52e JR |
1392 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); |
1393 | char cmd_buf[cmd_buf_len]; | |
f79c2d7a | 1394 | uint32_t flags, rp_status; |
7cdc2bab | 1395 | |
ecb4ba8a FD |
1396 | BT_COMP_LOGD("Requesting next index for stream: " |
1397 | "stream-id=%"PRIu64, stream->viewer_stream_id); | |
1398 | ||
7cdc2bab MD |
1399 | cmd.cmd = htobe32(LTTNG_VIEWER_GET_NEXT_INDEX); |
1400 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1401 | cmd.cmd_version = htobe32(0); | |
1402 | ||
bdcbd52e | 1403 | |
7cdc2bab MD |
1404 | memset(&rq, 0, sizeof(rq)); |
1405 | rq.stream_id = htobe64(stream->viewer_stream_id); | |
1406 | ||
bdcbd52e JR |
1407 | /* |
1408 | * Merge the cmd and connection request to prevent a write-write | |
1409 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1410 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1411 | */ | |
1412 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1413 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
f79c2d7a FD |
1414 | viewer_status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); |
1415 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1416 | viewer_handle_send_status(self_comp, NULL, | |
1417 | viewer_status, "get next index command"); | |
7cdc2bab MD |
1418 | goto error; |
1419 | } | |
7cdc2bab | 1420 | |
f79c2d7a FD |
1421 | viewer_status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); |
1422 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1423 | viewer_handle_recv_status(self_comp, NULL, | |
1424 | viewer_status, "get next index reply"); | |
7cdc2bab MD |
1425 | goto error; |
1426 | } | |
7cdc2bab MD |
1427 | |
1428 | flags = be32toh(rp.flags); | |
f79c2d7a | 1429 | rp_status = be32toh(rp.status); |
7cdc2bab | 1430 | |
f79c2d7a | 1431 | switch (rp_status) { |
7cdc2bab MD |
1432 | case LTTNG_VIEWER_INDEX_INACTIVE: |
1433 | { | |
1434 | uint64_t ctf_stream_class_id; | |
1435 | ||
1419db2b | 1436 | BT_COMP_LOGD("Received get_next_index response: inactive"); |
7cdc2bab MD |
1437 | memset(index, 0, sizeof(struct packet_index)); |
1438 | index->ts_cycles.timestamp_end = be64toh(rp.timestamp_end); | |
14f28187 | 1439 | stream->current_inactivity_ts = index->ts_cycles.timestamp_end; |
7cdc2bab MD |
1440 | ctf_stream_class_id = be64toh(rp.stream_id); |
1441 | if (stream->ctf_stream_class_id != -1ULL) { | |
f6ccaed9 | 1442 | BT_ASSERT(stream->ctf_stream_class_id == |
7cdc2bab MD |
1443 | ctf_stream_class_id); |
1444 | } else { | |
1445 | stream->ctf_stream_class_id = ctf_stream_class_id; | |
1446 | } | |
1447 | stream->state = LTTNG_LIVE_STREAM_QUIESCENT; | |
f79c2d7a | 1448 | status = LTTNG_LIVE_ITERATOR_STATUS_OK; |
7cdc2bab MD |
1449 | break; |
1450 | } | |
1451 | case LTTNG_VIEWER_INDEX_OK: | |
1452 | { | |
1453 | uint64_t ctf_stream_class_id; | |
1454 | ||
1419db2b | 1455 | BT_COMP_LOGD("Received get_next_index response: OK"); |
7cdc2bab MD |
1456 | lttng_index_to_packet_index(&rp, index); |
1457 | ctf_stream_class_id = be64toh(rp.stream_id); | |
1458 | if (stream->ctf_stream_class_id != -1ULL) { | |
f6ccaed9 | 1459 | BT_ASSERT(stream->ctf_stream_class_id == |
7cdc2bab MD |
1460 | ctf_stream_class_id); |
1461 | } else { | |
1462 | stream->ctf_stream_class_id = ctf_stream_class_id; | |
1463 | } | |
1464 | ||
1465 | stream->state = LTTNG_LIVE_STREAM_ACTIVE_DATA; | |
7cdc2bab MD |
1466 | |
1467 | if (flags & LTTNG_VIEWER_FLAG_NEW_METADATA) { | |
1419db2b | 1468 | BT_COMP_LOGD("Received get_next_index response: new metadata needed"); |
76bbaebc | 1469 | trace->metadata_stream_state = LTTNG_LIVE_METADATA_STREAM_STATE_NEEDED; |
7cdc2bab MD |
1470 | } |
1471 | if (flags & LTTNG_VIEWER_FLAG_NEW_STREAM) { | |
1419db2b | 1472 | BT_COMP_LOGD("Received get_next_index response: new streams needed"); |
14f28187 | 1473 | lttng_live_need_new_streams(lttng_live_msg_iter); |
7cdc2bab | 1474 | } |
f79c2d7a | 1475 | status = LTTNG_LIVE_ITERATOR_STATUS_OK; |
7cdc2bab MD |
1476 | break; |
1477 | } | |
1478 | case LTTNG_VIEWER_INDEX_RETRY: | |
1419db2b | 1479 | BT_COMP_LOGD("Received get_next_index response: retry"); |
7cdc2bab | 1480 | memset(index, 0, sizeof(struct packet_index)); |
7cdc2bab | 1481 | stream->state = LTTNG_LIVE_STREAM_ACTIVE_NO_DATA; |
f79c2d7a | 1482 | status = LTTNG_LIVE_ITERATOR_STATUS_AGAIN; |
7cdc2bab MD |
1483 | goto end; |
1484 | case LTTNG_VIEWER_INDEX_HUP: | |
1419db2b | 1485 | BT_COMP_LOGD("Received get_next_index response: stream hung up"); |
7cdc2bab MD |
1486 | memset(index, 0, sizeof(struct packet_index)); |
1487 | index->offset = EOF; | |
7cdc2bab | 1488 | stream->state = LTTNG_LIVE_STREAM_EOF; |
4a39caef | 1489 | stream->has_stream_hung_up = true; |
f79c2d7a | 1490 | status = LTTNG_LIVE_ITERATOR_STATUS_END; |
7cdc2bab MD |
1491 | break; |
1492 | case LTTNG_VIEWER_INDEX_ERR: | |
1419db2b | 1493 | BT_COMP_LOGD("Received get_next_index response: error"); |
7cdc2bab MD |
1494 | memset(index, 0, sizeof(struct packet_index)); |
1495 | stream->state = LTTNG_LIVE_STREAM_ACTIVE_NO_DATA; | |
f79c2d7a FD |
1496 | status = LTTNG_LIVE_ITERATOR_STATUS_ERROR; |
1497 | goto end; | |
7cdc2bab | 1498 | default: |
1419db2b | 1499 | BT_COMP_LOGD("Received get_next_index response: unknown value"); |
7cdc2bab MD |
1500 | memset(index, 0, sizeof(struct packet_index)); |
1501 | stream->state = LTTNG_LIVE_STREAM_ACTIVE_NO_DATA; | |
f79c2d7a FD |
1502 | status = LTTNG_LIVE_ITERATOR_STATUS_ERROR; |
1503 | goto end; | |
7cdc2bab | 1504 | } |
f79c2d7a | 1505 | goto end; |
7cdc2bab MD |
1506 | |
1507 | error: | |
f79c2d7a FD |
1508 | status = viewer_status_to_live_iterator_status(viewer_status); |
1509 | end: | |
1510 | return status; | |
7cdc2bab MD |
1511 | } |
1512 | ||
1513 | BT_HIDDEN | |
18a1979b | 1514 | enum ctf_msg_iter_medium_status lttng_live_get_stream_bytes( |
14f28187 FD |
1515 | struct lttng_live_msg_iter *lttng_live_msg_iter, |
1516 | struct lttng_live_stream_iterator *stream, uint8_t *buf, | |
1517 | uint64_t offset, uint64_t req_len, uint64_t *recv_len) | |
7cdc2bab | 1518 | { |
f79c2d7a FD |
1519 | enum ctf_msg_iter_medium_status status; |
1520 | enum lttng_live_viewer_status viewer_status; | |
0f1979c3 | 1521 | struct lttng_viewer_trace_packet rp; |
7cdc2bab MD |
1522 | struct lttng_viewer_cmd cmd; |
1523 | struct lttng_viewer_get_packet rq; | |
14f28187 | 1524 | struct live_viewer_connection *viewer_connection = |
1419db2b FD |
1525 | lttng_live_msg_iter->viewer_connection; |
1526 | bt_self_component *self_comp = viewer_connection->self_comp; | |
7cdc2bab | 1527 | struct lttng_live_trace *trace = stream->trace; |
bdcbd52e JR |
1528 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); |
1529 | char cmd_buf[cmd_buf_len]; | |
f79c2d7a | 1530 | uint32_t flags, rp_status; |
7cdc2bab | 1531 | |
2ece7dd0 | 1532 | BT_COMP_LOGD("lttng_live_get_stream_bytes: offset=%" PRIu64 ", req_len=%" PRIu64, |
7cdc2bab MD |
1533 | offset, req_len); |
1534 | cmd.cmd = htobe32(LTTNG_VIEWER_GET_PACKET); | |
1535 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1536 | cmd.cmd_version = htobe32(0); | |
1537 | ||
1538 | memset(&rq, 0, sizeof(rq)); | |
1539 | rq.stream_id = htobe64(stream->viewer_stream_id); | |
1540 | rq.offset = htobe64(offset); | |
1541 | rq.len = htobe32(req_len); | |
1542 | ||
bdcbd52e JR |
1543 | /* |
1544 | * Merge the cmd and connection request to prevent a write-write | |
1545 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1546 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1547 | */ | |
1548 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1549 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
f79c2d7a FD |
1550 | viewer_status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); |
1551 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1552 | viewer_handle_send_status(self_comp, NULL, | |
1553 | viewer_status, "get data packet command"); | |
7cdc2bab MD |
1554 | goto error; |
1555 | } | |
7cdc2bab | 1556 | |
f79c2d7a FD |
1557 | viewer_status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); |
1558 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1559 | viewer_handle_recv_status(self_comp, NULL, | |
1560 | viewer_status, "get data packet reply"); | |
7cdc2bab MD |
1561 | goto error; |
1562 | } | |
1563 | ||
1564 | flags = be32toh(rp.flags); | |
f79c2d7a | 1565 | rp_status = be32toh(rp.status); |
7cdc2bab | 1566 | |
f79c2d7a | 1567 | switch (rp_status) { |
7cdc2bab MD |
1568 | case LTTNG_VIEWER_GET_PACKET_OK: |
1569 | req_len = be32toh(rp.len); | |
1419db2b FD |
1570 | BT_COMP_LOGD("Received get_data_packet response: Ok, " |
1571 | "packet size : %" PRIu64 "", req_len); | |
f79c2d7a | 1572 | status = CTF_MSG_ITER_MEDIUM_STATUS_OK; |
7cdc2bab MD |
1573 | break; |
1574 | case LTTNG_VIEWER_GET_PACKET_RETRY: | |
1575 | /* Unimplemented by relay daemon */ | |
1419db2b | 1576 | BT_COMP_LOGD("Received get_data_packet response: retry"); |
f79c2d7a | 1577 | status = CTF_MSG_ITER_MEDIUM_STATUS_AGAIN; |
7cdc2bab MD |
1578 | goto end; |
1579 | case LTTNG_VIEWER_GET_PACKET_ERR: | |
1580 | if (flags & LTTNG_VIEWER_FLAG_NEW_METADATA) { | |
2ece7dd0 | 1581 | BT_COMP_LOGD("get_data_packet: new metadata needed, try again later"); |
76bbaebc | 1582 | trace->metadata_stream_state = LTTNG_LIVE_METADATA_STREAM_STATE_NEEDED; |
7cdc2bab MD |
1583 | } |
1584 | if (flags & LTTNG_VIEWER_FLAG_NEW_STREAM) { | |
2ece7dd0 | 1585 | BT_COMP_LOGD("get_data_packet: new streams needed, try again later"); |
14f28187 | 1586 | lttng_live_need_new_streams(lttng_live_msg_iter); |
7cdc2bab MD |
1587 | } |
1588 | if (flags & (LTTNG_VIEWER_FLAG_NEW_METADATA | |
1589 | | LTTNG_VIEWER_FLAG_NEW_STREAM)) { | |
f79c2d7a | 1590 | status = CTF_MSG_ITER_MEDIUM_STATUS_AGAIN; |
7cdc2bab MD |
1591 | goto end; |
1592 | } | |
1419db2b FD |
1593 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1594 | "Received get_data_packet response: error"); | |
f79c2d7a FD |
1595 | status = CTF_MSG_ITER_MEDIUM_STATUS_ERROR; |
1596 | goto end; | |
7cdc2bab | 1597 | case LTTNG_VIEWER_GET_PACKET_EOF: |
f79c2d7a | 1598 | status = CTF_MSG_ITER_MEDIUM_STATUS_EOF; |
7cdc2bab MD |
1599 | goto end; |
1600 | default: | |
1419db2b FD |
1601 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1602 | "Received get_data_packet response: unknown"); | |
f79c2d7a | 1603 | status = CTF_MSG_ITER_MEDIUM_STATUS_ERROR; |
7cdc2bab MD |
1604 | goto error; |
1605 | } | |
1606 | ||
1607 | if (req_len == 0) { | |
f79c2d7a | 1608 | status = CTF_MSG_ITER_MEDIUM_STATUS_ERROR; |
7cdc2bab MD |
1609 | goto error; |
1610 | } | |
1611 | ||
f79c2d7a FD |
1612 | viewer_status = lttng_live_recv(viewer_connection, buf, req_len); |
1613 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1614 | viewer_handle_recv_status(self_comp, NULL, | |
1615 | viewer_status, "get data packet"); | |
7cdc2bab MD |
1616 | goto error; |
1617 | } | |
f79c2d7a | 1618 | *recv_len = req_len; |
7cdc2bab | 1619 | |
f79c2d7a FD |
1620 | status = CTF_MSG_ITER_MEDIUM_STATUS_OK; |
1621 | goto end; | |
7cdc2bab | 1622 | error: |
f79c2d7a FD |
1623 | |
1624 | status = viewer_status_to_ctf_msg_iter_medium_status(viewer_status); | |
1625 | end: | |
1626 | return status; | |
7cdc2bab MD |
1627 | } |
1628 | ||
1629 | /* | |
1630 | * Request new streams for a session. | |
1631 | */ | |
1632 | BT_HIDDEN | |
36e94ad6 | 1633 | enum lttng_live_iterator_status lttng_live_session_get_new_streams( |
851de941 SM |
1634 | struct lttng_live_session *session, |
1635 | bt_self_message_iterator *self_msg_iter) | |
7cdc2bab | 1636 | { |
14f28187 FD |
1637 | enum lttng_live_iterator_status status = |
1638 | LTTNG_LIVE_ITERATOR_STATUS_OK; | |
7cdc2bab MD |
1639 | struct lttng_viewer_cmd cmd; |
1640 | struct lttng_viewer_new_streams_request rq; | |
1641 | struct lttng_viewer_new_streams_response rp; | |
14f28187 FD |
1642 | struct lttng_live_msg_iter *lttng_live_msg_iter = |
1643 | session->lttng_live_msg_iter; | |
f79c2d7a | 1644 | enum lttng_live_viewer_status viewer_status; |
14f28187 FD |
1645 | struct live_viewer_connection *viewer_connection = |
1646 | lttng_live_msg_iter->viewer_connection; | |
1419db2b | 1647 | bt_self_component *self_comp = viewer_connection->self_comp; |
7cdc2bab | 1648 | uint32_t streams_count; |
bdcbd52e JR |
1649 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); |
1650 | char cmd_buf[cmd_buf_len]; | |
7cdc2bab MD |
1651 | |
1652 | if (!session->new_streams_needed) { | |
f79c2d7a FD |
1653 | status = LTTNG_LIVE_ITERATOR_STATUS_OK; |
1654 | goto end; | |
7cdc2bab MD |
1655 | } |
1656 | ||
ecb4ba8a FD |
1657 | BT_COMP_LOGD("Requesting new streams for session: " |
1658 | "session-id=%"PRIu64, session->id); | |
1659 | ||
7cdc2bab MD |
1660 | cmd.cmd = htobe32(LTTNG_VIEWER_GET_NEW_STREAMS); |
1661 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1662 | cmd.cmd_version = htobe32(0); | |
1663 | ||
1664 | memset(&rq, 0, sizeof(rq)); | |
1665 | rq.session_id = htobe64(session->id); | |
1666 | ||
bdcbd52e JR |
1667 | /* |
1668 | * Merge the cmd and connection request to prevent a write-write | |
1669 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1670 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1671 | */ | |
1672 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1673 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
f79c2d7a FD |
1674 | viewer_status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); |
1675 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1676 | viewer_handle_send_status(self_comp, NULL, | |
1677 | viewer_status, "get new streams command"); | |
1678 | status = viewer_status_to_live_iterator_status(viewer_status); | |
1679 | goto end; | |
7cdc2bab | 1680 | } |
7cdc2bab | 1681 | |
f79c2d7a FD |
1682 | viewer_status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); |
1683 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1684 | viewer_handle_recv_status(self_comp, NULL, | |
1685 | viewer_status, "get new streams reply"); | |
1686 | status = viewer_status_to_live_iterator_status(viewer_status); | |
1687 | goto end; | |
7cdc2bab | 1688 | } |
7cdc2bab MD |
1689 | |
1690 | streams_count = be32toh(rp.streams_count); | |
1691 | ||
1692 | switch(be32toh(rp.status)) { | |
1693 | case LTTNG_VIEWER_NEW_STREAMS_OK: | |
1694 | session->new_streams_needed = false; | |
1695 | break; | |
1696 | case LTTNG_VIEWER_NEW_STREAMS_NO_NEW: | |
1697 | session->new_streams_needed = false; | |
1698 | goto end; | |
1699 | case LTTNG_VIEWER_NEW_STREAMS_HUP: | |
1700 | session->new_streams_needed = false; | |
1701 | session->closed = true; | |
14f28187 | 1702 | status = LTTNG_LIVE_ITERATOR_STATUS_END; |
7cdc2bab MD |
1703 | goto end; |
1704 | case LTTNG_VIEWER_NEW_STREAMS_ERR: | |
1419db2b | 1705 | BT_COMP_LOGD("Received get_new_streams response: error"); |
f79c2d7a FD |
1706 | status = LTTNG_LIVE_ITERATOR_STATUS_ERROR; |
1707 | goto end; | |
7cdc2bab | 1708 | default: |
1419db2b FD |
1709 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1710 | "Received get_new_streams response: Unknown:" | |
1711 | "return code %u", be32toh(rp.status)); | |
f79c2d7a FD |
1712 | status = LTTNG_LIVE_ITERATOR_STATUS_ERROR; |
1713 | goto end; | |
7cdc2bab MD |
1714 | } |
1715 | ||
f79c2d7a FD |
1716 | viewer_status = receive_streams(session, streams_count, self_msg_iter); |
1717 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1718 | viewer_handle_recv_status(self_comp, NULL, | |
1719 | viewer_status, "new streams"); | |
1720 | status = viewer_status_to_live_iterator_status(viewer_status); | |
1721 | goto end; | |
7cdc2bab | 1722 | } |
7cdc2bab | 1723 | |
f79c2d7a FD |
1724 | status = LTTNG_LIVE_ITERATOR_STATUS_OK; |
1725 | end: | |
7cdc2bab MD |
1726 | return status; |
1727 | } | |
1728 | ||
1729 | BT_HIDDEN | |
f79c2d7a | 1730 | enum lttng_live_viewer_status live_viewer_connection_create( |
1419db2b FD |
1731 | bt_self_component *self_comp, |
1732 | bt_self_component_class *self_comp_class, | |
f79c2d7a FD |
1733 | bt_logging_level log_level, |
1734 | const char *url, bool in_query, | |
1735 | struct lttng_live_msg_iter *lttng_live_msg_iter, | |
1736 | struct live_viewer_connection **viewer) | |
7cdc2bab | 1737 | { |
14f28187 | 1738 | struct live_viewer_connection *viewer_connection; |
f79c2d7a | 1739 | enum lttng_live_viewer_status status; |
7cdc2bab | 1740 | |
14f28187 | 1741 | viewer_connection = g_new0(struct live_viewer_connection, 1); |
7cdc2bab | 1742 | |
550004b4 | 1743 | if (bt_socket_init(log_level) != 0) { |
1419db2b FD |
1744 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
1745 | self_comp_class, "Failed to init socket"); | |
f79c2d7a | 1746 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
1cb3cdd7 MJ |
1747 | goto error; |
1748 | } | |
1749 | ||
550004b4 PP |
1750 | viewer_connection->log_level = log_level; |
1751 | ||
1419db2b FD |
1752 | viewer_connection->self_comp = self_comp; |
1753 | viewer_connection->self_comp_class = self_comp_class; | |
550004b4 | 1754 | |
1cb3cdd7 | 1755 | viewer_connection->control_sock = BT_INVALID_SOCKET; |
7cdc2bab | 1756 | viewer_connection->port = -1; |
14f28187 FD |
1757 | viewer_connection->in_query = in_query; |
1758 | viewer_connection->lttng_live_msg_iter = lttng_live_msg_iter; | |
7cdc2bab MD |
1759 | viewer_connection->url = g_string_new(url); |
1760 | if (!viewer_connection->url) { | |
1419db2b FD |
1761 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
1762 | self_comp_class, "Failed to allocate URL buffer"); | |
f79c2d7a | 1763 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
7cdc2bab MD |
1764 | goto error; |
1765 | } | |
1766 | ||
ecb4ba8a FD |
1767 | BT_COMP_OR_COMP_CLASS_LOGD(self_comp, self_comp_class, |
1768 | "Establishing connection to url \"%s\"...", url); | |
f79c2d7a FD |
1769 | status = lttng_live_connect_viewer(viewer_connection); |
1770 | /* | |
1771 | * Only print error and append cause in case of error. not in case of | |
1772 | * interruption. | |
1773 | */ | |
1774 | if (status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
1419db2b FD |
1775 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
1776 | self_comp_class, "Failed to establish connection: " | |
1777 | "url=\"%s\"", url); | |
1778 | goto error; | |
f79c2d7a FD |
1779 | } else if (status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { |
1780 | goto error; | |
7cdc2bab | 1781 | } |
ecb4ba8a FD |
1782 | BT_COMP_OR_COMP_CLASS_LOGD(self_comp, self_comp_class, |
1783 | "Connection to url \"%s\" is established", url); | |
f79c2d7a FD |
1784 | |
1785 | *viewer = viewer_connection; | |
1786 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
1787 | goto end; | |
7cdc2bab | 1788 | |
7cdc2bab | 1789 | error: |
2f767475 PP |
1790 | if (viewer_connection) { |
1791 | live_viewer_connection_destroy(viewer_connection); | |
1792 | } | |
f79c2d7a FD |
1793 | end: |
1794 | return status; | |
7cdc2bab MD |
1795 | } |
1796 | ||
1797 | BT_HIDDEN | |
14f28187 FD |
1798 | void live_viewer_connection_destroy( |
1799 | struct live_viewer_connection *viewer_connection) | |
7cdc2bab | 1800 | { |
ecb4ba8a FD |
1801 | bt_self_component *self_comp = viewer_connection->self_comp; |
1802 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
b9e6ec43 FD |
1803 | |
1804 | if (!viewer_connection) { | |
1805 | goto end; | |
1806 | } | |
1807 | ||
ecb4ba8a FD |
1808 | BT_COMP_OR_COMP_CLASS_LOGD(self_comp, self_comp_class, |
1809 | "Closing connection to relay:" | |
1810 | "relay-url=\"%s\"", viewer_connection->url->str); | |
1811 | ||
7cdc2bab | 1812 | lttng_live_disconnect_viewer(viewer_connection); |
b9e6ec43 | 1813 | |
2f767475 PP |
1814 | if (viewer_connection->url) { |
1815 | g_string_free(viewer_connection->url, true); | |
1816 | } | |
b9e6ec43 | 1817 | |
94b828f3 | 1818 | if (viewer_connection->relay_hostname) { |
14f28187 | 1819 | g_string_free(viewer_connection->relay_hostname, true); |
94b828f3 | 1820 | } |
b9e6ec43 | 1821 | |
94b828f3 | 1822 | if (viewer_connection->target_hostname) { |
14f28187 | 1823 | g_string_free(viewer_connection->target_hostname, true); |
94b828f3 | 1824 | } |
b9e6ec43 | 1825 | |
94b828f3 | 1826 | if (viewer_connection->session_name) { |
14f28187 | 1827 | g_string_free(viewer_connection->session_name, true); |
94b828f3 | 1828 | } |
b9e6ec43 | 1829 | |
ecb4ba8a FD |
1830 | if (viewer_connection->proto) { |
1831 | g_string_free(viewer_connection->proto, true); | |
1832 | } | |
1833 | ||
7cdc2bab | 1834 | g_free(viewer_connection); |
1cb3cdd7 MJ |
1835 | |
1836 | bt_socket_fini(); | |
b9e6ec43 FD |
1837 | |
1838 | end: | |
1839 | return; | |
7cdc2bab | 1840 | } |