Commit | Line | Data |
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7cdc2bab | 1 | /* |
bb18709b | 2 | * Copyright 2019 - Francis Deslauriers <francis.deslauriers@efficios.com> |
7cdc2bab MD |
3 | * Copyright 2016 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
4 | * | |
5 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
6 | * of this software and associated documentation files (the "Software"), to deal | |
7 | * in the Software without restriction, including without limitation the rights | |
8 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
9 | * copies of the Software, and to permit persons to whom the Software is | |
10 | * furnished to do so, subject to the following conditions: | |
11 | * | |
12 | * The above copyright notice and this permission notice shall be included in | |
13 | * all copies or substantial portions of the Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
18 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
21 | * SOFTWARE. | |
22 | */ | |
23 | ||
5278d5ba | 24 | #define BT_COMP_LOG_SELF_COMP (viewer_connection->self_comp) |
1c0ceb65 | 25 | #define BT_LOG_OUTPUT_LEVEL (viewer_connection->log_level) |
b03487ab | 26 | #define BT_LOG_TAG "PLUGIN/SRC.CTF.LTTNG-LIVE/VIEWER" |
3fa1b6a3 | 27 | #include "logging/comp-logging.h" |
020bc26f | 28 | |
28fb42b4 FD |
29 | #include <fcntl.h> |
30 | #include <stdbool.h> | |
7cdc2bab | 31 | #include <stdint.h> |
28fb42b4 | 32 | #include <stdio.h> |
7cdc2bab | 33 | #include <stdlib.h> |
28fb42b4 | 34 | #include <sys/types.h> |
7cdc2bab | 35 | #include <unistd.h> |
28fb42b4 | 36 | |
7cdc2bab | 37 | #include <glib.h> |
7cdc2bab | 38 | |
57952005 MJ |
39 | #include "compat/socket.h" |
40 | #include "compat/endian.h" | |
41 | #include "compat/compiler.h" | |
42 | #include "common/common.h" | |
71c5da58 | 43 | #include <babeltrace2/babeltrace.h> |
7cdc2bab | 44 | |
bb18709b | 45 | #include "lttng-live.h" |
7cdc2bab MD |
46 | #include "viewer-connection.h" |
47 | #include "lttng-viewer-abi.h" | |
48 | #include "data-stream.h" | |
49 | #include "metadata.h" | |
50 | ||
8dd99d00 FD |
51 | #define viewer_handle_send_recv_status(_self_comp, _self_comp_class, \ |
52 | _status, _action, _msg_str) \ | |
53 | do { \ | |
54 | switch (_status) { \ | |
55 | case LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED: \ | |
56 | break; \ | |
57 | case LTTNG_LIVE_VIEWER_STATUS_ERROR: \ | |
58 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(_self_comp, \ | |
59 | _self_comp_class, "Error " _action " " _msg_str); \ | |
60 | break; \ | |
61 | default: \ | |
62 | bt_common_abort(); \ | |
63 | } \ | |
64 | } while (0) | |
65 | ||
66 | #define viewer_handle_send_status(_self_comp, _self_comp_class, _status, _msg_str) \ | |
67 | viewer_handle_send_recv_status(_self_comp, _self_comp_class, _status, \ | |
68 | "sending", _msg_str) | |
69 | ||
70 | #define viewer_handle_recv_status(_self_comp, _self_comp_class, _status, _msg_str) \ | |
71 | viewer_handle_send_recv_status(_self_comp, _self_comp_class, _status, \ | |
72 | "receiving", _msg_str) | |
73 | ||
74 | #define LTTNG_LIVE_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE_ERRNO(_self_comp, \ | |
75 | _self_comp_class, _msg, _fmt, ...) \ | |
76 | do { \ | |
77 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(_self_comp, _self_comp_class, \ | |
78 | _msg ": %s" _fmt, bt_socket_errormsg(), ##__VA_ARGS__); \ | |
79 | } while (0) | |
80 | ||
81 | static inline | |
82 | enum lttng_live_iterator_status viewer_status_to_live_iterator_status( | |
83 | enum lttng_live_viewer_status viewer_status) | |
84 | { | |
85 | switch (viewer_status) { | |
86 | case LTTNG_LIVE_VIEWER_STATUS_OK: | |
87 | return LTTNG_LIVE_ITERATOR_STATUS_OK; | |
88 | case LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED: | |
89 | return LTTNG_LIVE_ITERATOR_STATUS_AGAIN; | |
90 | case LTTNG_LIVE_VIEWER_STATUS_ERROR: | |
91 | return LTTNG_LIVE_ITERATOR_STATUS_ERROR; | |
92 | default: | |
93 | bt_common_abort(); | |
94 | } | |
95 | } | |
96 | ||
97 | static inline | |
98 | enum ctf_msg_iter_medium_status viewer_status_to_ctf_msg_iter_medium_status( | |
99 | enum lttng_live_viewer_status viewer_status) | |
100 | { | |
101 | switch (viewer_status) { | |
102 | case LTTNG_LIVE_VIEWER_STATUS_OK: | |
103 | return CTF_MSG_ITER_MEDIUM_STATUS_OK; | |
104 | case LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED: | |
105 | return CTF_MSG_ITER_MEDIUM_STATUS_AGAIN; | |
106 | case LTTNG_LIVE_VIEWER_STATUS_ERROR: | |
107 | return CTF_MSG_ITER_MEDIUM_STATUS_ERROR; | |
108 | default: | |
109 | bt_common_abort(); | |
110 | } | |
111 | } | |
112 | ||
113 | /* | |
114 | * This function receives a message from the Relay daemon. | |
115 | * If it received the entire message, it returns _OK, | |
116 | * If it's interrupted, it returns _INTERRUPTED, | |
117 | * otherwise, it returns _ERROR. | |
118 | */ | |
bb18709b | 119 | static |
8dd99d00 FD |
120 | enum lttng_live_viewer_status lttng_live_recv( |
121 | struct live_viewer_connection *viewer_connection, | |
4c66436f | 122 | void *buf, size_t len) |
7cdc2bab | 123 | { |
8dd99d00 FD |
124 | ssize_t received; |
125 | bt_self_component_class *self_comp_class = | |
126 | viewer_connection->self_comp_class; | |
127 | bt_self_component *self_comp = | |
128 | viewer_connection->self_comp; | |
129 | size_t total_received = 0, to_receive = len; | |
bb18709b FD |
130 | struct lttng_live_msg_iter *lttng_live_msg_iter = |
131 | viewer_connection->lttng_live_msg_iter; | |
8dd99d00 | 132 | enum lttng_live_viewer_status status; |
a2147eb2 | 133 | BT_SOCKET sock = viewer_connection->control_sock; |
7cdc2bab | 134 | |
8dd99d00 FD |
135 | /* |
136 | * Receive a message from the Relay. | |
137 | */ | |
7cdc2bab | 138 | do { |
8dd99d00 FD |
139 | received = bt_socket_recv(sock, buf + total_received, to_receive, 0); |
140 | if (received == BT_SOCKET_ERROR) { | |
141 | if (bt_socket_interrupted()) { | |
142 | if (lttng_live_graph_is_canceled(lttng_live_msg_iter)) { | |
143 | /* | |
144 | * This interruption was due to a | |
145 | * SIGINT and the graph is being torn | |
146 | * down. | |
147 | */ | |
148 | status = LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED; | |
149 | lttng_live_msg_iter->was_interrupted = true; | |
150 | goto end; | |
151 | } else { | |
152 | /* | |
153 | * A signal was received, but the graph | |
154 | * is not being torn down. Carry on. | |
155 | */ | |
156 | continue; | |
157 | } | |
4c66436f | 158 | } else { |
8dd99d00 FD |
159 | /* |
160 | * For any other types of socket error, returng | |
161 | * an error. | |
162 | */ | |
163 | LTTNG_LIVE_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE_ERRNO( | |
164 | self_comp, self_comp_class, | |
165 | "Error receiving from Relay", "."); | |
166 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
167 | goto end; | |
4c66436f | 168 | } |
8dd99d00 FD |
169 | } else if (received == 0) { |
170 | /* | |
171 | * The recv() call returned 0. This means the | |
172 | * connection was orderly shutdown from the other peer. | |
173 | * If that happens when we are trying to receive | |
174 | * a message from it, it means something when wrong. | |
175 | */ | |
176 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
177 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, | |
178 | self_comp_class, "Remote side has closed connection"); | |
179 | goto end; | |
4c66436f | 180 | } |
b4a5dfd9 | 181 | |
8dd99d00 FD |
182 | BT_ASSERT(received <= to_receive); |
183 | total_received += received; | |
184 | to_receive -= received; | |
b4a5dfd9 | 185 | |
8dd99d00 FD |
186 | } while (to_receive > 0); |
187 | ||
188 | BT_ASSERT(total_received == len); | |
189 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
190 | ||
191 | end: | |
192 | return status; | |
7cdc2bab MD |
193 | } |
194 | ||
8dd99d00 FD |
195 | /* |
196 | * This function sends a message to the Relay daemon. | |
197 | * If it send the message, it returns _OK, | |
198 | * If it's interrupted, it returns _INTERRUPTED, | |
199 | * otherwise, it returns _ERROR. | |
200 | */ | |
bb18709b | 201 | static |
8dd99d00 FD |
202 | enum lttng_live_viewer_status lttng_live_send( |
203 | struct live_viewer_connection *viewer_connection, | |
4c66436f | 204 | const void *buf, size_t len) |
7cdc2bab | 205 | { |
8dd99d00 FD |
206 | enum lttng_live_viewer_status status; |
207 | bt_self_component_class *self_comp_class = | |
208 | viewer_connection->self_comp_class; | |
209 | bt_self_component *self_comp = | |
210 | viewer_connection->self_comp; | |
bb18709b FD |
211 | struct lttng_live_msg_iter *lttng_live_msg_iter = |
212 | viewer_connection->lttng_live_msg_iter; | |
a2147eb2 | 213 | BT_SOCKET sock = viewer_connection->control_sock; |
8dd99d00 FD |
214 | size_t to_send = len; |
215 | ssize_t total_sent = 0; | |
216 | ||
217 | do { | |
218 | ssize_t sent = bt_socket_send_nosigpipe(sock, buf + total_sent, | |
219 | to_send); | |
220 | if (sent == BT_SOCKET_ERROR) { | |
221 | if (bt_socket_interrupted()) { | |
222 | if (lttng_live_graph_is_canceled(lttng_live_msg_iter)) { | |
223 | /* | |
224 | * This interruption was a SIGINT and | |
225 | * the graph is being teared down. | |
226 | */ | |
227 | status = LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED; | |
228 | lttng_live_msg_iter->was_interrupted = true; | |
229 | goto end; | |
230 | } else { | |
231 | /* | |
232 | * A signal was received, but the graph | |
233 | * is not being teared down. Carry on. | |
234 | */ | |
235 | continue; | |
236 | } | |
4c66436f | 237 | } else { |
8dd99d00 FD |
238 | /* |
239 | * The send() call returned an error. | |
240 | */ | |
241 | LTTNG_LIVE_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE_ERRNO( | |
242 | self_comp, self_comp_class, | |
243 | "Error sending to Relay", "."); | |
244 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; | |
245 | goto end; | |
4c66436f | 246 | } |
4c66436f | 247 | } |
8dd99d00 FD |
248 | |
249 | BT_ASSERT(sent <= to_send); | |
250 | total_sent += sent; | |
251 | to_send -= sent; | |
252 | ||
253 | } while (to_send > 0); | |
254 | ||
255 | BT_ASSERT(total_sent == len); | |
256 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
257 | ||
258 | end: | |
259 | return status; | |
7cdc2bab MD |
260 | } |
261 | ||
bb18709b FD |
262 | static |
263 | int parse_url(struct live_viewer_connection *viewer_connection) | |
7cdc2bab | 264 | { |
94b828f3 | 265 | char error_buf[256] = { 0 }; |
f6e2a9d2 FD |
266 | bt_self_component *self_comp = viewer_connection->self_comp; |
267 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
94b828f3 MD |
268 | struct bt_common_lttng_live_url_parts lttng_live_url_parts = { 0 }; |
269 | int ret = -1; | |
7cdc2bab | 270 | const char *path = viewer_connection->url->str; |
7cdc2bab MD |
271 | |
272 | if (!path) { | |
273 | goto end; | |
274 | } | |
7cdc2bab | 275 | |
0b6986b4 FD |
276 | lttng_live_url_parts = bt_common_parse_lttng_live_url(path, error_buf, |
277 | sizeof(error_buf)); | |
94b828f3 | 278 | if (!lttng_live_url_parts.proto) { |
f6e2a9d2 FD |
279 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
280 | self_comp_class,"Invalid LTTng live URL format: %s", | |
281 | error_buf); | |
7cdc2bab MD |
282 | goto end; |
283 | } | |
f555be5d FD |
284 | viewer_connection->proto = lttng_live_url_parts.proto; |
285 | lttng_live_url_parts.proto = NULL; | |
7cdc2bab | 286 | |
0b6986b4 | 287 | viewer_connection->relay_hostname = lttng_live_url_parts.hostname; |
94b828f3 MD |
288 | lttng_live_url_parts.hostname = NULL; |
289 | ||
290 | if (lttng_live_url_parts.port >= 0) { | |
291 | viewer_connection->port = lttng_live_url_parts.port; | |
292 | } else { | |
7cdc2bab MD |
293 | viewer_connection->port = LTTNG_DEFAULT_NETWORK_VIEWER_PORT; |
294 | } | |
295 | ||
0b6986b4 | 296 | viewer_connection->target_hostname = lttng_live_url_parts.target_hostname; |
94b828f3 MD |
297 | lttng_live_url_parts.target_hostname = NULL; |
298 | ||
299 | if (lttng_live_url_parts.session_name) { | |
0b6986b4 | 300 | viewer_connection->session_name = lttng_live_url_parts.session_name; |
94b828f3 | 301 | lttng_live_url_parts.session_name = NULL; |
7cdc2bab MD |
302 | } |
303 | ||
7cdc2bab MD |
304 | ret = 0; |
305 | ||
306 | end: | |
94b828f3 | 307 | bt_common_destroy_lttng_live_url_parts(<tng_live_url_parts); |
7cdc2bab MD |
308 | return ret; |
309 | } | |
310 | ||
bb18709b | 311 | static |
8dd99d00 FD |
312 | enum lttng_live_viewer_status lttng_live_handshake( |
313 | struct live_viewer_connection *viewer_connection) | |
7cdc2bab MD |
314 | { |
315 | struct lttng_viewer_cmd cmd; | |
316 | struct lttng_viewer_connect connect; | |
8dd99d00 | 317 | enum lttng_live_viewer_status status; |
f6e2a9d2 FD |
318 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; |
319 | bt_self_component *self_comp = viewer_connection->self_comp; | |
02b23da7 JR |
320 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(connect); |
321 | char cmd_buf[cmd_buf_len]; | |
7cdc2bab | 322 | |
f555be5d FD |
323 | BT_COMP_OR_COMP_CLASS_LOGD(self_comp, self_comp_class, |
324 | "Handshaking with the Relay: " | |
325 | "major-version=%u, minor-version=%u", | |
326 | LTTNG_LIVE_MAJOR, LTTNG_LIVE_MINOR); | |
327 | ||
7cdc2bab MD |
328 | cmd.cmd = htobe32(LTTNG_VIEWER_CONNECT); |
329 | cmd.data_size = htobe64((uint64_t) sizeof(connect)); | |
330 | cmd.cmd_version = htobe32(0); | |
331 | ||
332 | connect.viewer_session_id = -1ULL; /* will be set on recv */ | |
333 | connect.major = htobe32(LTTNG_LIVE_MAJOR); | |
334 | connect.minor = htobe32(LTTNG_LIVE_MINOR); | |
335 | connect.type = htobe32(LTTNG_VIEWER_CLIENT_COMMAND); | |
336 | ||
02b23da7 JR |
337 | /* |
338 | * Merge the cmd and connection request to prevent a write-write | |
339 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
340 | * second write to be performed quickly in presence of Nagle's algorithm | |
341 | */ | |
342 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
343 | memcpy(cmd_buf + sizeof(cmd), &connect, sizeof(connect)); | |
7cdc2bab | 344 | |
8dd99d00 FD |
345 | status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); |
346 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
347 | viewer_handle_send_status(self_comp, self_comp_class, | |
348 | status, "viewer connect command"); | |
349 | goto end; | |
7cdc2bab | 350 | } |
8dd99d00 FD |
351 | |
352 | status = lttng_live_recv(viewer_connection, &connect, sizeof(connect)); | |
353 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
354 | viewer_handle_recv_status(self_comp, self_comp_class, | |
355 | status, "viewer connect reply"); | |
356 | goto end; | |
7cdc2bab | 357 | } |
7cdc2bab | 358 | |
f555be5d FD |
359 | BT_COMP_OR_COMP_CLASS_LOGI(self_comp, self_comp_class, |
360 | "Received viewer session ID : %" PRIu64, | |
361 | (uint64_t) be64toh(connect.viewer_session_id)); | |
362 | BT_COMP_OR_COMP_CLASS_LOGI(self_comp, self_comp_class, | |
363 | "Relayd version : %u.%u", be32toh(connect.major), | |
364 | be32toh(connect.minor)); | |
7cdc2bab MD |
365 | |
366 | if (LTTNG_LIVE_MAJOR != be32toh(connect.major)) { | |
f6e2a9d2 FD |
367 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
368 | self_comp_class, "Incompatible lttng-relayd protocol"); | |
8dd99d00 FD |
369 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
370 | goto end; | |
7cdc2bab MD |
371 | } |
372 | /* Use the smallest protocol version implemented. */ | |
373 | if (LTTNG_LIVE_MINOR > be32toh(connect.minor)) { | |
374 | viewer_connection->minor = be32toh(connect.minor); | |
375 | } else { | |
376 | viewer_connection->minor = LTTNG_LIVE_MINOR; | |
377 | } | |
378 | viewer_connection->major = LTTNG_LIVE_MAJOR; | |
7cdc2bab | 379 | |
8dd99d00 FD |
380 | status = LTTNG_LIVE_VIEWER_STATUS_OK; |
381 | ||
382 | goto end; | |
383 | ||
384 | end: | |
385 | return status; | |
7cdc2bab MD |
386 | } |
387 | ||
bb18709b | 388 | static |
8dd99d00 FD |
389 | enum lttng_live_viewer_status lttng_live_connect_viewer( |
390 | struct live_viewer_connection *viewer_connection) | |
7cdc2bab MD |
391 | { |
392 | struct hostent *host; | |
393 | struct sockaddr_in server_addr; | |
8dd99d00 | 394 | enum lttng_live_viewer_status status; |
f6e2a9d2 FD |
395 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; |
396 | bt_self_component *self_comp = viewer_connection->self_comp; | |
7cdc2bab MD |
397 | |
398 | if (parse_url(viewer_connection)) { | |
f6e2a9d2 FD |
399 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
400 | self_comp_class, "Failed to parse URL"); | |
8dd99d00 | 401 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
7cdc2bab MD |
402 | goto error; |
403 | } | |
404 | ||
f555be5d FD |
405 | BT_COMP_OR_COMP_CLASS_LOGD(self_comp, self_comp_class, |
406 | "Connecting to hostname : %s, port : %d, " | |
407 | "target hostname : %s, session name : %s, proto : %s", | |
408 | viewer_connection->relay_hostname->str, | |
409 | viewer_connection->port, | |
410 | !viewer_connection->target_hostname ? | |
411 | "<none>" : viewer_connection->target_hostname->str, | |
412 | !viewer_connection->session_name ? | |
413 | "<none>" : viewer_connection->session_name->str, | |
414 | viewer_connection->proto->str); | |
415 | ||
94b828f3 | 416 | host = gethostbyname(viewer_connection->relay_hostname->str); |
7cdc2bab | 417 | if (!host) { |
f6e2a9d2 FD |
418 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
419 | self_comp_class, "Cannot lookup hostname: hostname=\"%s\"", | |
94b828f3 | 420 | viewer_connection->relay_hostname->str); |
8dd99d00 | 421 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
7cdc2bab MD |
422 | goto error; |
423 | } | |
424 | ||
a2147eb2 | 425 | if ((viewer_connection->control_sock = socket(AF_INET, SOCK_STREAM, 0)) == BT_INVALID_SOCKET) { |
f6e2a9d2 FD |
426 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
427 | self_comp_class, "Socket creation failed: %s", bt_socket_errormsg()); | |
8dd99d00 | 428 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
7cdc2bab MD |
429 | goto error; |
430 | } | |
431 | ||
432 | server_addr.sin_family = AF_INET; | |
433 | server_addr.sin_port = htons(viewer_connection->port); | |
434 | server_addr.sin_addr = *((struct in_addr *) host->h_addr); | |
435 | memset(&(server_addr.sin_zero), 0, 8); | |
436 | ||
437 | if (connect(viewer_connection->control_sock, (struct sockaddr *) &server_addr, | |
a2147eb2 | 438 | sizeof(struct sockaddr)) == BT_SOCKET_ERROR) { |
f6e2a9d2 FD |
439 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
440 | self_comp_class, "Connection failed: %s", | |
441 | bt_socket_errormsg()); | |
8dd99d00 | 442 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
7cdc2bab MD |
443 | goto error; |
444 | } | |
8dd99d00 FD |
445 | |
446 | status = lttng_live_handshake(viewer_connection); | |
447 | ||
448 | /* | |
449 | * Only print error and append cause in case of error. not in case of | |
450 | * interruption. | |
451 | */ | |
452 | if (status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
f6e2a9d2 FD |
453 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
454 | self_comp_class, "Viewer handshake failed"); | |
7cdc2bab | 455 | goto error; |
8dd99d00 FD |
456 | } else if (status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { |
457 | goto end; | |
7cdc2bab MD |
458 | } |
459 | ||
8dd99d00 | 460 | goto end; |
7cdc2bab MD |
461 | |
462 | error: | |
a2147eb2 MJ |
463 | if (viewer_connection->control_sock != BT_INVALID_SOCKET) { |
464 | if (bt_socket_close(viewer_connection->control_sock) == BT_SOCKET_ERROR) { | |
f555be5d FD |
465 | BT_COMP_OR_COMP_CLASS_LOGW(self_comp, self_comp_class, |
466 | "Error closing socket: %s.", bt_socket_errormsg()); | |
7cdc2bab MD |
467 | } |
468 | } | |
a2147eb2 | 469 | viewer_connection->control_sock = BT_INVALID_SOCKET; |
8dd99d00 FD |
470 | end: |
471 | return status; | |
7cdc2bab MD |
472 | } |
473 | ||
bb18709b FD |
474 | static |
475 | void lttng_live_disconnect_viewer( | |
476 | struct live_viewer_connection *viewer_connection) | |
7cdc2bab | 477 | { |
f555be5d FD |
478 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; |
479 | bt_self_component *self_comp = viewer_connection->self_comp; | |
480 | ||
a2147eb2 | 481 | if (viewer_connection->control_sock == BT_INVALID_SOCKET) { |
7cdc2bab MD |
482 | return; |
483 | } | |
a2147eb2 | 484 | if (bt_socket_close(viewer_connection->control_sock) == BT_SOCKET_ERROR) { |
f555be5d FD |
485 | BT_COMP_OR_COMP_CLASS_LOGW(self_comp, self_comp_class, |
486 | "Error closing socket: %s", bt_socket_errormsg()); | |
a2147eb2 | 487 | viewer_connection->control_sock = BT_INVALID_SOCKET; |
7cdc2bab MD |
488 | } |
489 | } | |
490 | ||
7cdc2bab | 491 | static |
bb18709b | 492 | int list_update_session(bt_value *results, |
7cdc2bab | 493 | const struct lttng_viewer_session *session, |
1c0ceb65 | 494 | bool *_found, struct live_viewer_connection *viewer_connection) |
7cdc2bab | 495 | { |
f6e2a9d2 FD |
496 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; |
497 | bt_self_component *self_comp = viewer_connection->self_comp; | |
b602018b FD |
498 | int ret = 0; |
499 | uint64_t i, len; | |
8eee8ea2 PP |
500 | bt_value *map = NULL; |
501 | bt_value *hostname = NULL; | |
502 | bt_value *session_name = NULL; | |
503 | bt_value *btval = NULL; | |
7cdc2bab MD |
504 | bool found = false; |
505 | ||
1270d0e9 | 506 | len = bt_value_array_get_length(results); |
7cdc2bab MD |
507 | for (i = 0; i < len; i++) { |
508 | const char *hostname_str = NULL; | |
509 | const char *session_name_str = NULL; | |
510 | ||
b602018b | 511 | map = bt_value_array_borrow_element_by_index(results, i); |
bb18709b | 512 | hostname = bt_value_map_borrow_entry_value(map, "target-hostname"); |
7cdc2bab | 513 | if (!hostname) { |
f6e2a9d2 FD |
514 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
515 | self_comp_class, | |
516 | "Error borrowing \"target-hostname\" entry."); | |
bb18709b | 517 | ret = -1; |
7cdc2bab MD |
518 | goto end; |
519 | } | |
bb18709b | 520 | session_name = bt_value_map_borrow_entry_value(map, "session-name"); |
7cdc2bab | 521 | if (!session_name) { |
f6e2a9d2 FD |
522 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
523 | self_comp_class, | |
524 | "Error borrowing \"session-name\" entry."); | |
bb18709b | 525 | ret = -1; |
7cdc2bab MD |
526 | goto end; |
527 | } | |
b5cdc106 PP |
528 | hostname_str = bt_value_string_get(hostname); |
529 | session_name_str = bt_value_string_get(session_name); | |
7cdc2bab | 530 | |
acfa8112 PP |
531 | if (strcmp(session->hostname, hostname_str) == 0 |
532 | && strcmp(session->session_name, session_name_str) == 0) { | |
7cdc2bab MD |
533 | int64_t val; |
534 | uint32_t streams = be32toh(session->streams); | |
535 | uint32_t clients = be32toh(session->clients); | |
536 | ||
537 | found = true; | |
538 | ||
bb18709b | 539 | btval = bt_value_map_borrow_entry_value(map, "stream-count"); |
7cdc2bab | 540 | if (!btval) { |
f6e2a9d2 FD |
541 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE( |
542 | self_comp, self_comp_class, | |
543 | "Error borrowing \"stream-count\" entry."); | |
bb18709b | 544 | ret = -1; |
7cdc2bab MD |
545 | goto end; |
546 | } | |
9d9daa04 | 547 | val = bt_value_integer_unsigned_get(btval); |
7cdc2bab MD |
548 | /* sum */ |
549 | val += streams; | |
9d9daa04 | 550 | bt_value_integer_unsigned_set(btval, val); |
7cdc2bab | 551 | |
bb18709b | 552 | btval = bt_value_map_borrow_entry_value(map, "client-count"); |
7cdc2bab | 553 | if (!btval) { |
f6e2a9d2 FD |
554 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE( |
555 | self_comp, self_comp_class, | |
556 | "Error borrowing \"client-count\" entry."); | |
bb18709b | 557 | ret = -1; |
7cdc2bab MD |
558 | goto end; |
559 | } | |
9d9daa04 | 560 | val = bt_value_integer_unsigned_get(btval); |
7cdc2bab | 561 | /* max */ |
85e7137b | 562 | val = bt_max_t(int64_t, clients, val); |
9d9daa04 | 563 | bt_value_integer_unsigned_set(btval, val); |
7cdc2bab MD |
564 | } |
565 | ||
7cdc2bab MD |
566 | if (found) { |
567 | break; | |
568 | } | |
569 | } | |
570 | end: | |
7cdc2bab MD |
571 | *_found = found; |
572 | return ret; | |
573 | } | |
574 | ||
575 | static | |
bb18709b | 576 | int list_append_session(bt_value *results, |
7cdc2bab | 577 | GString *base_url, |
1c0ceb65 PP |
578 | const struct lttng_viewer_session *session, |
579 | struct live_viewer_connection *viewer_connection) | |
7cdc2bab | 580 | { |
bb18709b | 581 | int ret = 0; |
f6e2a9d2 | 582 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; |
fb25b9e3 PP |
583 | bt_value_map_insert_entry_status insert_status; |
584 | bt_value_array_append_element_status append_status; | |
8eee8ea2 | 585 | bt_value *map = NULL; |
7cdc2bab MD |
586 | GString *url = NULL; |
587 | bool found = false; | |
588 | ||
589 | /* | |
590 | * If the session already exists, add the stream count to it, | |
591 | * and do max of client counts. | |
592 | */ | |
1c0ceb65 | 593 | ret = list_update_session(results, session, &found, viewer_connection); |
bb18709b | 594 | if (ret || found) { |
7cdc2bab MD |
595 | goto end; |
596 | } | |
597 | ||
bb18709b | 598 | map = bt_value_map_create(); |
7cdc2bab | 599 | if (!map) { |
f6e2a9d2 FD |
600 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
601 | "Error creating map value."); | |
bb18709b | 602 | ret = -1; |
7cdc2bab MD |
603 | goto end; |
604 | } | |
605 | ||
606 | if (base_url->len < 1) { | |
f6e2a9d2 FD |
607 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
608 | "Error: base_url length smaller than 1."); | |
bb18709b | 609 | ret = -1; |
7cdc2bab MD |
610 | goto end; |
611 | } | |
612 | /* | |
613 | * key = "url", | |
614 | * value = <string>, | |
615 | */ | |
616 | url = g_string_new(base_url->str); | |
617 | g_string_append(url, "/host/"); | |
618 | g_string_append(url, session->hostname); | |
619 | g_string_append_c(url, '/'); | |
620 | g_string_append(url, session->session_name); | |
621 | ||
fb25b9e3 PP |
622 | insert_status = bt_value_map_insert_string_entry(map, "url", url->str); |
623 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
f6e2a9d2 FD |
624 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
625 | "Error inserting \"url\" entry."); | |
bb18709b | 626 | ret = -1; |
7cdc2bab MD |
627 | goto end; |
628 | } | |
629 | ||
630 | /* | |
631 | * key = "target-hostname", | |
632 | * value = <string>, | |
633 | */ | |
fb25b9e3 | 634 | insert_status = bt_value_map_insert_string_entry(map, "target-hostname", |
7cdc2bab | 635 | session->hostname); |
fb25b9e3 | 636 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { |
f6e2a9d2 FD |
637 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
638 | "Error inserting \"target-hostname\" entry."); | |
bb18709b | 639 | ret = -1; |
7cdc2bab MD |
640 | goto end; |
641 | } | |
642 | ||
643 | /* | |
644 | * key = "session-name", | |
645 | * value = <string>, | |
646 | */ | |
fb25b9e3 | 647 | insert_status = bt_value_map_insert_string_entry(map, "session-name", |
7cdc2bab | 648 | session->session_name); |
fb25b9e3 | 649 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { |
f6e2a9d2 FD |
650 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
651 | "Error inserting \"session-name\" entry."); | |
bb18709b | 652 | ret = -1; |
7cdc2bab MD |
653 | goto end; |
654 | } | |
655 | ||
656 | /* | |
657 | * key = "timer-us", | |
658 | * value = <integer>, | |
659 | */ | |
660 | { | |
661 | uint32_t live_timer = be32toh(session->live_timer); | |
662 | ||
9d9daa04 | 663 | insert_status = bt_value_map_insert_unsigned_integer_entry( |
68d9d039 | 664 | map, "timer-us", live_timer); |
fb25b9e3 | 665 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { |
f6e2a9d2 FD |
666 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
667 | "Error inserting \"timer-us\" entry."); | |
bb18709b | 668 | ret = -1; |
7cdc2bab MD |
669 | goto end; |
670 | } | |
671 | } | |
672 | ||
673 | /* | |
674 | * key = "stream-count", | |
675 | * value = <integer>, | |
676 | */ | |
677 | { | |
678 | uint32_t streams = be32toh(session->streams); | |
679 | ||
9d9daa04 | 680 | insert_status = bt_value_map_insert_unsigned_integer_entry(map, |
68d9d039 | 681 | "stream-count", streams); |
fb25b9e3 | 682 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { |
f6e2a9d2 FD |
683 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
684 | "Error inserting \"stream-count\" entry."); | |
bb18709b | 685 | ret = -1; |
7cdc2bab MD |
686 | goto end; |
687 | } | |
688 | } | |
689 | ||
7cdc2bab MD |
690 | /* |
691 | * key = "client-count", | |
692 | * value = <integer>, | |
693 | */ | |
694 | { | |
695 | uint32_t clients = be32toh(session->clients); | |
696 | ||
9d9daa04 | 697 | insert_status = bt_value_map_insert_unsigned_integer_entry(map, |
68d9d039 | 698 | "client-count", clients); |
fb25b9e3 | 699 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { |
f6e2a9d2 FD |
700 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
701 | "Error inserting \"client-count\" entry."); | |
bb18709b | 702 | ret = -1; |
7cdc2bab MD |
703 | goto end; |
704 | } | |
705 | } | |
706 | ||
fb25b9e3 PP |
707 | append_status = bt_value_array_append_element(results, map); |
708 | if (append_status != BT_VALUE_ARRAY_APPEND_ELEMENT_STATUS_OK) { | |
f6e2a9d2 FD |
709 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
710 | "Error appending map to results."); | |
bb18709b FD |
711 | ret = -1; |
712 | } | |
713 | ||
7cdc2bab MD |
714 | end: |
715 | if (url) { | |
bb18709b | 716 | g_string_free(url, true); |
7cdc2bab | 717 | } |
8c6884d9 | 718 | BT_VALUE_PUT_REF_AND_RESET(map); |
7cdc2bab MD |
719 | return ret; |
720 | } | |
721 | ||
722 | /* | |
723 | * Data structure returned: | |
724 | * | |
725 | * { | |
726 | * <array> = { | |
727 | * [n] = { | |
728 | * <map> = { | |
729 | * { | |
730 | * key = "url", | |
731 | * value = <string>, | |
732 | * }, | |
733 | * { | |
734 | * key = "target-hostname", | |
735 | * value = <string>, | |
736 | * }, | |
737 | * { | |
738 | * key = "session-name", | |
739 | * value = <string>, | |
740 | * }, | |
741 | * { | |
742 | * key = "timer-us", | |
743 | * value = <integer>, | |
744 | * }, | |
745 | * { | |
746 | * key = "stream-count", | |
747 | * value = <integer>, | |
748 | * }, | |
749 | * { | |
750 | * key = "client-count", | |
751 | * value = <integer>, | |
752 | * }, | |
753 | * }, | |
754 | * } | |
755 | * } | |
756 | */ | |
757 | ||
758 | BT_HIDDEN | |
fb25b9e3 | 759 | bt_component_class_query_method_status live_viewer_connection_list_sessions( |
bb18709b FD |
760 | struct live_viewer_connection *viewer_connection, |
761 | const bt_value **user_result) | |
7cdc2bab | 762 | { |
f6e2a9d2 | 763 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; |
fb25b9e3 PP |
764 | bt_component_class_query_method_status status = |
765 | BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_OK; | |
bb18709b | 766 | bt_value *result = NULL; |
8dd99d00 | 767 | enum lttng_live_viewer_status viewer_status; |
7cdc2bab MD |
768 | struct lttng_viewer_cmd cmd; |
769 | struct lttng_viewer_list_sessions list; | |
770 | uint32_t i, sessions_count; | |
7cdc2bab | 771 | |
bb18709b FD |
772 | result = bt_value_array_create(); |
773 | if (!result) { | |
f6e2a9d2 FD |
774 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
775 | "Error creating array"); | |
fb25b9e3 | 776 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_MEMORY_ERROR; |
7cdc2bab MD |
777 | goto error; |
778 | } | |
779 | ||
780 | cmd.cmd = htobe32(LTTNG_VIEWER_LIST_SESSIONS); | |
781 | cmd.data_size = htobe64((uint64_t) 0); | |
782 | cmd.cmd_version = htobe32(0); | |
783 | ||
8dd99d00 FD |
784 | viewer_status = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); |
785 | if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
f6e2a9d2 | 786 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
8dd99d00 | 787 | "Error sending list sessions command"); |
fb25b9e3 | 788 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; |
7cdc2bab | 789 | goto error; |
8dd99d00 FD |
790 | } else if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { |
791 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_AGAIN; | |
792 | goto error; | |
7cdc2bab | 793 | } |
7cdc2bab | 794 | |
8dd99d00 FD |
795 | viewer_status = lttng_live_recv(viewer_connection, &list, sizeof(list)); |
796 | if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
f6e2a9d2 | 797 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
8dd99d00 | 798 | "Error receiving session list"); |
fb25b9e3 | 799 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; |
7cdc2bab | 800 | goto error; |
8dd99d00 FD |
801 | } else if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { |
802 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_AGAIN; | |
7cdc2bab MD |
803 | goto error; |
804 | } | |
7cdc2bab MD |
805 | |
806 | sessions_count = be32toh(list.sessions_count); | |
807 | for (i = 0; i < sessions_count; i++) { | |
808 | struct lttng_viewer_session lsession; | |
809 | ||
8dd99d00 | 810 | viewer_status = lttng_live_recv(viewer_connection, &lsession, |
bb18709b | 811 | sizeof(lsession)); |
8dd99d00 | 812 | if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { |
f6e2a9d2 | 813 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
8dd99d00 | 814 | "Error receiving session:"); |
fb25b9e3 | 815 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; |
7cdc2bab | 816 | goto error; |
8dd99d00 FD |
817 | } else if (viewer_status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { |
818 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_AGAIN; | |
7cdc2bab MD |
819 | goto error; |
820 | } | |
8dd99d00 | 821 | |
7cdc2bab MD |
822 | lsession.hostname[LTTNG_VIEWER_HOST_NAME_MAX - 1] = '\0'; |
823 | lsession.session_name[LTTNG_VIEWER_NAME_MAX - 1] = '\0'; | |
bb18709b | 824 | if (list_append_session(result, viewer_connection->url, |
1c0ceb65 | 825 | &lsession, viewer_connection)) { |
f6e2a9d2 FD |
826 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
827 | "Error appending session"); | |
fb25b9e3 | 828 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; |
7cdc2bab MD |
829 | goto error; |
830 | } | |
831 | } | |
bb18709b FD |
832 | |
833 | *user_result = result; | |
7cdc2bab MD |
834 | goto end; |
835 | error: | |
bb18709b | 836 | BT_VALUE_PUT_REF_AND_RESET(result); |
7cdc2bab | 837 | end: |
bb18709b | 838 | return status; |
7cdc2bab MD |
839 | } |
840 | ||
841 | static | |
8dd99d00 FD |
842 | enum lttng_live_viewer_status lttng_live_query_session_ids( |
843 | struct lttng_live_msg_iter *lttng_live_msg_iter) | |
7cdc2bab MD |
844 | { |
845 | struct lttng_viewer_cmd cmd; | |
846 | struct lttng_viewer_list_sessions list; | |
847 | struct lttng_viewer_session lsession; | |
848 | uint32_t i, sessions_count; | |
7cdc2bab | 849 | uint64_t session_id; |
8dd99d00 | 850 | enum lttng_live_viewer_status status; |
bb18709b | 851 | struct live_viewer_connection *viewer_connection = |
f6e2a9d2 FD |
852 | lttng_live_msg_iter->viewer_connection; |
853 | bt_self_component *self_comp = viewer_connection->self_comp; | |
8dd99d00 FD |
854 | bt_self_component_class *self_comp_class = |
855 | viewer_connection->self_comp_class; | |
7cdc2bab | 856 | |
f555be5d FD |
857 | BT_COMP_LOGD("Asking the Relay for the list of sessions"); |
858 | ||
7cdc2bab MD |
859 | cmd.cmd = htobe32(LTTNG_VIEWER_LIST_SESSIONS); |
860 | cmd.data_size = htobe64((uint64_t) 0); | |
861 | cmd.cmd_version = htobe32(0); | |
862 | ||
8dd99d00 FD |
863 | status = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); |
864 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
865 | viewer_handle_send_status(self_comp, self_comp_class, | |
866 | status, "list sessions command"); | |
867 | goto end; | |
7cdc2bab | 868 | } |
7cdc2bab | 869 | |
8dd99d00 FD |
870 | status = lttng_live_recv(viewer_connection, &list, sizeof(list)); |
871 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
872 | viewer_handle_recv_status(self_comp, self_comp_class, | |
873 | status, "session list reply"); | |
874 | goto end; | |
7cdc2bab | 875 | } |
7cdc2bab MD |
876 | |
877 | sessions_count = be32toh(list.sessions_count); | |
878 | for (i = 0; i < sessions_count; i++) { | |
8dd99d00 FD |
879 | status = lttng_live_recv(viewer_connection, &lsession, |
880 | sizeof(lsession)); | |
881 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
882 | viewer_handle_recv_status(self_comp, self_comp_class, | |
883 | status, "session reply"); | |
884 | goto end; | |
7cdc2bab | 885 | } |
7cdc2bab MD |
886 | lsession.hostname[LTTNG_VIEWER_HOST_NAME_MAX - 1] = '\0'; |
887 | lsession.session_name[LTTNG_VIEWER_NAME_MAX - 1] = '\0'; | |
888 | session_id = be64toh(lsession.id); | |
889 | ||
f555be5d FD |
890 | BT_COMP_LOGI("Adding session to internal list: " |
891 | "session-id=%" PRIu64 ", hostname=\"%s\", session-name=\"%s\"", | |
06994c71 MD |
892 | session_id, lsession.hostname, lsession.session_name); |
893 | ||
7cdc2bab | 894 | if ((strncmp(lsession.session_name, |
94b828f3 | 895 | viewer_connection->session_name->str, |
a2147eb2 | 896 | LTTNG_VIEWER_NAME_MAX) == 0) && (strncmp(lsession.hostname, |
94b828f3 | 897 | viewer_connection->target_hostname->str, |
a2147eb2 | 898 | LTTNG_VIEWER_HOST_NAME_MAX) == 0)) { |
f555be5d | 899 | |
bb18709b | 900 | if (lttng_live_add_session(lttng_live_msg_iter, session_id, |
06994c71 MD |
901 | lsession.hostname, |
902 | lsession.session_name)) { | |
f6e2a9d2 FD |
903 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
904 | "Failed to add live session"); | |
8dd99d00 FD |
905 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
906 | goto end; | |
7cdc2bab MD |
907 | } |
908 | } | |
909 | } | |
910 | ||
8dd99d00 | 911 | status = LTTNG_LIVE_VIEWER_STATUS_OK; |
7cdc2bab | 912 | |
8dd99d00 FD |
913 | end: |
914 | return status; | |
7cdc2bab MD |
915 | } |
916 | ||
917 | BT_HIDDEN | |
8dd99d00 | 918 | enum lttng_live_viewer_status lttng_live_create_viewer_session( |
bb18709b | 919 | struct lttng_live_msg_iter *lttng_live_msg_iter) |
7cdc2bab MD |
920 | { |
921 | struct lttng_viewer_cmd cmd; | |
922 | struct lttng_viewer_create_session_response resp; | |
8dd99d00 | 923 | enum lttng_live_viewer_status status; |
bb18709b | 924 | struct live_viewer_connection *viewer_connection = |
f6e2a9d2 FD |
925 | lttng_live_msg_iter->viewer_connection; |
926 | bt_self_component *self_comp = viewer_connection->self_comp; | |
8dd99d00 FD |
927 | bt_self_component_class *self_comp_class = |
928 | viewer_connection->self_comp_class; | |
7cdc2bab | 929 | |
f555be5d FD |
930 | BT_COMP_OR_COMP_CLASS_LOGD(self_comp, self_comp_class, |
931 | "Creating a viewer session"); | |
932 | ||
7cdc2bab MD |
933 | cmd.cmd = htobe32(LTTNG_VIEWER_CREATE_SESSION); |
934 | cmd.data_size = htobe64((uint64_t) 0); | |
935 | cmd.cmd_version = htobe32(0); | |
936 | ||
8dd99d00 FD |
937 | status = lttng_live_send(viewer_connection, &cmd, sizeof(cmd)); |
938 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
939 | viewer_handle_send_status(self_comp, self_comp_class, | |
940 | status, "create session command"); | |
941 | goto end; | |
7cdc2bab | 942 | } |
7cdc2bab | 943 | |
8dd99d00 FD |
944 | status = lttng_live_recv(viewer_connection, &resp, sizeof(resp)); |
945 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
946 | viewer_handle_recv_status(self_comp, self_comp_class, | |
947 | status, "create session reply"); | |
948 | goto end; | |
7cdc2bab | 949 | } |
7cdc2bab MD |
950 | |
951 | if (be32toh(resp.status) != LTTNG_VIEWER_CREATE_SESSION_OK) { | |
f6e2a9d2 FD |
952 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
953 | "Error creating viewer session"); | |
8dd99d00 FD |
954 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
955 | goto end; | |
7cdc2bab | 956 | } |
8dd99d00 FD |
957 | |
958 | status = lttng_live_query_session_ids(lttng_live_msg_iter); | |
959 | if (status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
f6e2a9d2 FD |
960 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
961 | "Failed to query live viewer session ids"); | |
8dd99d00 FD |
962 | goto end; |
963 | } else if (status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { | |
964 | goto end; | |
7cdc2bab MD |
965 | } |
966 | ||
8dd99d00 FD |
967 | end: |
968 | return status; | |
7cdc2bab MD |
969 | } |
970 | ||
971 | static | |
8dd99d00 | 972 | enum lttng_live_viewer_status receive_streams(struct lttng_live_session *session, |
2428e031 SM |
973 | uint32_t stream_count, |
974 | bt_self_message_iterator *self_msg_iter) | |
7cdc2bab | 975 | { |
7cdc2bab | 976 | uint32_t i; |
bb18709b | 977 | struct lttng_live_msg_iter *lttng_live_msg_iter = |
0b6986b4 | 978 | session->lttng_live_msg_iter; |
8dd99d00 | 979 | enum lttng_live_viewer_status status; |
bb18709b | 980 | struct live_viewer_connection *viewer_connection = |
0b6986b4 | 981 | lttng_live_msg_iter->viewer_connection; |
f6e2a9d2 | 982 | bt_self_component *self_comp = viewer_connection->self_comp; |
7cdc2bab | 983 | |
5278d5ba | 984 | BT_COMP_LOGI("Getting %" PRIu32 " new streams:", stream_count); |
7cdc2bab MD |
985 | for (i = 0; i < stream_count; i++) { |
986 | struct lttng_viewer_stream stream; | |
987 | struct lttng_live_stream_iterator *live_stream; | |
988 | uint64_t stream_id; | |
989 | uint64_t ctf_trace_id; | |
990 | ||
8dd99d00 FD |
991 | status = lttng_live_recv(viewer_connection, &stream, |
992 | sizeof(stream)); | |
993 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
994 | viewer_handle_recv_status(self_comp, NULL, | |
995 | status, "stream reply"); | |
996 | goto end; | |
7cdc2bab | 997 | } |
7cdc2bab MD |
998 | stream.path_name[LTTNG_VIEWER_PATH_MAX - 1] = '\0'; |
999 | stream.channel_name[LTTNG_VIEWER_NAME_MAX - 1] = '\0'; | |
1000 | stream_id = be64toh(stream.id); | |
1001 | ctf_trace_id = be64toh(stream.ctf_trace_id); | |
1002 | ||
1003 | if (stream.metadata_flag) { | |
5278d5ba | 1004 | BT_COMP_LOGI(" metadata stream %" PRIu64 " : %s/%s", |
0b6986b4 | 1005 | stream_id, stream.path_name, stream.channel_name); |
7cdc2bab | 1006 | if (lttng_live_metadata_create_stream(session, |
06994c71 MD |
1007 | ctf_trace_id, stream_id, |
1008 | stream.path_name)) { | |
f6e2a9d2 FD |
1009 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1010 | "Error creating metadata stream"); | |
8dd99d00 FD |
1011 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
1012 | goto end; | |
7cdc2bab | 1013 | } |
b09a5592 | 1014 | session->lazy_stream_msg_init = true; |
7cdc2bab | 1015 | } else { |
5278d5ba | 1016 | BT_COMP_LOGI(" stream %" PRIu64 " : %s/%s", |
0b6986b4 | 1017 | stream_id, stream.path_name, stream.channel_name); |
7cdc2bab | 1018 | live_stream = lttng_live_stream_iterator_create(session, |
2428e031 | 1019 | ctf_trace_id, stream_id, self_msg_iter); |
7cdc2bab | 1020 | if (!live_stream) { |
f6e2a9d2 FD |
1021 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1022 | "Error creating stream"); | |
8dd99d00 FD |
1023 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
1024 | goto end; | |
7cdc2bab MD |
1025 | } |
1026 | } | |
1027 | } | |
8dd99d00 | 1028 | status = LTTNG_LIVE_VIEWER_STATUS_OK; |
7cdc2bab | 1029 | |
8dd99d00 FD |
1030 | end: |
1031 | return status; | |
7cdc2bab MD |
1032 | } |
1033 | ||
1034 | BT_HIDDEN | |
8dd99d00 | 1035 | enum lttng_live_viewer_status lttng_live_attach_session( |
2428e031 SM |
1036 | struct lttng_live_session *session, |
1037 | bt_self_message_iterator *self_msg_iter) | |
7cdc2bab MD |
1038 | { |
1039 | struct lttng_viewer_cmd cmd; | |
8dd99d00 | 1040 | enum lttng_live_viewer_status status; |
7cdc2bab MD |
1041 | struct lttng_viewer_attach_session_request rq; |
1042 | struct lttng_viewer_attach_session_response rp; | |
0b6986b4 FD |
1043 | struct lttng_live_msg_iter *lttng_live_msg_iter = |
1044 | session->lttng_live_msg_iter; | |
bb18709b | 1045 | struct live_viewer_connection *viewer_connection = |
0b6986b4 | 1046 | lttng_live_msg_iter->viewer_connection; |
f6e2a9d2 | 1047 | bt_self_component *self_comp = viewer_connection->self_comp; |
7cdc2bab MD |
1048 | uint64_t session_id = session->id; |
1049 | uint32_t streams_count; | |
02b23da7 JR |
1050 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); |
1051 | char cmd_buf[cmd_buf_len]; | |
7cdc2bab | 1052 | |
f555be5d FD |
1053 | BT_COMP_LOGD("Attaching to session: session-id=%"PRIu64, session_id); |
1054 | ||
7cdc2bab MD |
1055 | cmd.cmd = htobe32(LTTNG_VIEWER_ATTACH_SESSION); |
1056 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1057 | cmd.cmd_version = htobe32(0); | |
1058 | ||
1059 | memset(&rq, 0, sizeof(rq)); | |
1060 | rq.session_id = htobe64(session_id); | |
1061 | // TODO: add cmd line parameter to select seek beginning | |
1062 | // rq.seek = htobe32(LTTNG_VIEWER_SEEK_BEGINNING); | |
1063 | rq.seek = htobe32(LTTNG_VIEWER_SEEK_LAST); | |
1064 | ||
02b23da7 JR |
1065 | /* |
1066 | * Merge the cmd and connection request to prevent a write-write | |
1067 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1068 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1069 | */ | |
1070 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1071 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
8dd99d00 FD |
1072 | status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); |
1073 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1074 | viewer_handle_send_status(self_comp, NULL, | |
1075 | status, "attach session command"); | |
1076 | goto end; | |
7cdc2bab | 1077 | } |
7cdc2bab | 1078 | |
8dd99d00 FD |
1079 | status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); |
1080 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1081 | viewer_handle_recv_status(self_comp, NULL, | |
1082 | status, "attach session reply"); | |
1083 | goto end; | |
7cdc2bab | 1084 | } |
7cdc2bab MD |
1085 | |
1086 | streams_count = be32toh(rp.streams_count); | |
1087 | switch(be32toh(rp.status)) { | |
1088 | case LTTNG_VIEWER_ATTACH_OK: | |
1089 | break; | |
1090 | case LTTNG_VIEWER_ATTACH_UNK: | |
f6e2a9d2 FD |
1091 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1092 | "Session id %" PRIu64 " is unknown", session_id); | |
8dd99d00 FD |
1093 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
1094 | goto end; | |
7cdc2bab | 1095 | case LTTNG_VIEWER_ATTACH_ALREADY: |
f6e2a9d2 FD |
1096 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1097 | "There is already a viewer attached to this session"); | |
8dd99d00 FD |
1098 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
1099 | goto end; | |
7cdc2bab | 1100 | case LTTNG_VIEWER_ATTACH_NOT_LIVE: |
f6e2a9d2 | 1101 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Not a live session"); |
8dd99d00 FD |
1102 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
1103 | goto end; | |
7cdc2bab | 1104 | case LTTNG_VIEWER_ATTACH_SEEK_ERR: |
f6e2a9d2 | 1105 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Wrong seek parameter"); |
8dd99d00 FD |
1106 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
1107 | goto end; | |
7cdc2bab | 1108 | default: |
f6e2a9d2 FD |
1109 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1110 | "Unknown attach return code %u", be32toh(rp.status)); | |
8dd99d00 FD |
1111 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
1112 | goto end; | |
7cdc2bab MD |
1113 | } |
1114 | ||
1115 | /* We receive the initial list of streams. */ | |
8dd99d00 FD |
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: | |
f6e2a9d2 | 1123 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Error receiving streams"); |
8dd99d00 FD |
1124 | goto end; |
1125 | default: | |
1126 | bt_common_abort(); | |
7cdc2bab MD |
1127 | } |
1128 | ||
1129 | session->attached = true; | |
1130 | session->new_streams_needed = false; | |
1131 | ||
477ede8e | 1132 | end: |
8dd99d00 | 1133 | return status; |
7cdc2bab MD |
1134 | } |
1135 | ||
1136 | BT_HIDDEN | |
8dd99d00 FD |
1137 | enum lttng_live_viewer_status lttng_live_detach_session( |
1138 | struct lttng_live_session *session) | |
7cdc2bab MD |
1139 | { |
1140 | struct lttng_viewer_cmd cmd; | |
8dd99d00 | 1141 | enum lttng_live_viewer_status status; |
7cdc2bab MD |
1142 | struct lttng_viewer_detach_session_request rq; |
1143 | struct lttng_viewer_detach_session_response rp; | |
0b6986b4 FD |
1144 | struct lttng_live_msg_iter *lttng_live_msg_iter = |
1145 | session->lttng_live_msg_iter; | |
8dd99d00 | 1146 | bt_self_component *self_comp = session->self_comp; |
bb18709b | 1147 | struct live_viewer_connection *viewer_connection = |
0b6986b4 | 1148 | lttng_live_msg_iter->viewer_connection; |
7cdc2bab | 1149 | uint64_t session_id = session->id; |
02b23da7 JR |
1150 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); |
1151 | char cmd_buf[cmd_buf_len]; | |
7cdc2bab MD |
1152 | |
1153 | if (!session->attached) { | |
1154 | return 0; | |
1155 | } | |
1156 | ||
1157 | cmd.cmd = htobe32(LTTNG_VIEWER_DETACH_SESSION); | |
1158 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1159 | cmd.cmd_version = htobe32(0); | |
1160 | ||
1161 | memset(&rq, 0, sizeof(rq)); | |
1162 | rq.session_id = htobe64(session_id); | |
1163 | ||
02b23da7 JR |
1164 | /* |
1165 | * Merge the cmd and connection request to prevent a write-write | |
1166 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1167 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1168 | */ | |
1169 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1170 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
8dd99d00 FD |
1171 | status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); |
1172 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1173 | viewer_handle_send_status(self_comp, NULL, | |
1174 | status, "detach session command"); | |
1175 | goto end; | |
7cdc2bab | 1176 | } |
7cdc2bab | 1177 | |
8dd99d00 FD |
1178 | status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); |
1179 | if (status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1180 | viewer_handle_recv_status(self_comp, NULL, | |
1181 | status, "detach session reply"); | |
1182 | goto end; | |
7cdc2bab | 1183 | } |
7cdc2bab MD |
1184 | |
1185 | switch(be32toh(rp.status)) { | |
1186 | case LTTNG_VIEWER_DETACH_SESSION_OK: | |
1187 | break; | |
1188 | case LTTNG_VIEWER_DETACH_SESSION_UNK: | |
5278d5ba | 1189 | BT_COMP_LOGW("Session id %" PRIu64 " is unknown", session_id); |
8dd99d00 FD |
1190 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
1191 | goto end; | |
7cdc2bab | 1192 | case LTTNG_VIEWER_DETACH_SESSION_ERR: |
5278d5ba | 1193 | BT_COMP_LOGW("Error detaching session id %" PRIu64 "", session_id); |
8dd99d00 FD |
1194 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
1195 | goto end; | |
7cdc2bab | 1196 | default: |
5278d5ba | 1197 | BT_COMP_LOGE("Unknown detach return code %u", be32toh(rp.status)); |
8dd99d00 FD |
1198 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
1199 | goto end; | |
7cdc2bab MD |
1200 | } |
1201 | ||
1202 | session->attached = false; | |
1203 | ||
8dd99d00 | 1204 | status = LTTNG_LIVE_VIEWER_STATUS_OK; |
7cdc2bab | 1205 | |
8dd99d00 FD |
1206 | end: |
1207 | return status; | |
7cdc2bab MD |
1208 | } |
1209 | ||
1210 | BT_HIDDEN | |
f797424a FD |
1211 | enum lttng_live_get_one_metadata_status lttng_live_get_one_metadata_packet( |
1212 | struct lttng_live_trace *trace, FILE *fp, size_t *reply_len) | |
7cdc2bab MD |
1213 | { |
1214 | uint64_t len = 0; | |
8dd99d00 FD |
1215 | enum lttng_live_get_one_metadata_status status; |
1216 | enum lttng_live_viewer_status viewer_status; | |
7cdc2bab MD |
1217 | struct lttng_viewer_cmd cmd; |
1218 | struct lttng_viewer_get_metadata rq; | |
1219 | struct lttng_viewer_metadata_packet rp; | |
1220 | char *data = NULL; | |
1221 | ssize_t ret_len; | |
1222 | struct lttng_live_session *session = trace->session; | |
0b6986b4 FD |
1223 | struct lttng_live_msg_iter *lttng_live_msg_iter = |
1224 | session->lttng_live_msg_iter; | |
7cdc2bab | 1225 | struct lttng_live_metadata *metadata = trace->metadata; |
bb18709b | 1226 | struct live_viewer_connection *viewer_connection = |
0b6986b4 | 1227 | lttng_live_msg_iter->viewer_connection; |
f6e2a9d2 | 1228 | bt_self_component *self_comp = viewer_connection->self_comp; |
02b23da7 JR |
1229 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); |
1230 | char cmd_buf[cmd_buf_len]; | |
7cdc2bab | 1231 | |
f555be5d FD |
1232 | BT_COMP_LOGD("Requesting new metadata for trace: " |
1233 | "trace-id=%"PRIu64", metadata-stream-id=%"PRIu64, | |
1234 | trace->id, metadata->stream_id); | |
1235 | ||
7cdc2bab MD |
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 | ||
02b23da7 JR |
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)); | |
8dd99d00 FD |
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, | |
1251 | viewer_status, "get metadata command"); | |
1252 | status = (enum lttng_live_get_one_metadata_status) viewer_status; | |
1253 | goto end; | |
7cdc2bab | 1254 | } |
7cdc2bab | 1255 | |
8dd99d00 FD |
1256 | viewer_status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); |
1257 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1258 | viewer_handle_recv_status(self_comp, NULL, | |
1259 | viewer_status, "get metadata reply"); | |
1260 | status = (enum lttng_live_get_one_metadata_status) viewer_status; | |
1261 | goto end; | |
7cdc2bab | 1262 | } |
7cdc2bab MD |
1263 | |
1264 | switch (be32toh(rp.status)) { | |
1265 | case LTTNG_VIEWER_METADATA_OK: | |
f6e2a9d2 | 1266 | BT_COMP_LOGD("Received get_metadata response: ok"); |
7cdc2bab MD |
1267 | break; |
1268 | case LTTNG_VIEWER_NO_NEW_METADATA: | |
f797424a | 1269 | BT_COMP_LOGD("Received get_metadata response: no new"); |
8dd99d00 | 1270 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_END; |
7cdc2bab MD |
1271 | goto end; |
1272 | case LTTNG_VIEWER_METADATA_ERR: | |
f797424a FD |
1273 | /* |
1274 | * The Relayd cannot find this stream id. Maybe its | |
1275 | * gone already. This can happen in short lived UST app | |
1276 | * in a per-pid session. | |
1277 | */ | |
1278 | BT_COMP_LOGD("Received get_metadata response: error"); | |
8dd99d00 | 1279 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_CLOSED; |
f797424a | 1280 | goto end; |
7cdc2bab | 1281 | default: |
f6e2a9d2 FD |
1282 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1283 | "Received get_metadata response: unknown"); | |
8dd99d00 | 1284 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR; |
7cdc2bab MD |
1285 | goto error; |
1286 | } | |
1287 | ||
1288 | len = be64toh(rp.len); | |
5278d5ba | 1289 | BT_COMP_LOGD("Writing %" PRIu64" bytes to metadata", len); |
7cdc2bab | 1290 | if (len <= 0) { |
f6e2a9d2 FD |
1291 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1292 | "Erroneous response length"); | |
8dd99d00 | 1293 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR; |
7cdc2bab MD |
1294 | goto error; |
1295 | } | |
1296 | ||
85e7137b | 1297 | data = calloc(1, len); |
7cdc2bab | 1298 | if (!data) { |
f6e2a9d2 FD |
1299 | BT_COMP_LOGE_APPEND_CAUSE_ERRNO(self_comp, |
1300 | "Failed to allocate data buffer", "."); | |
8dd99d00 | 1301 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR; |
7cdc2bab MD |
1302 | goto error; |
1303 | } | |
8dd99d00 FD |
1304 | |
1305 | viewer_status = lttng_live_recv(viewer_connection, data, len); | |
1306 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1307 | viewer_handle_recv_status(self_comp, NULL, | |
1308 | viewer_status, "get metadata packet"); | |
1309 | status = (enum lttng_live_get_one_metadata_status) viewer_status; | |
1310 | goto error; | |
7cdc2bab | 1311 | } |
7cdc2bab | 1312 | |
8dd99d00 FD |
1313 | /* |
1314 | * Write the metadata to the file handle. | |
1315 | */ | |
7cdc2bab MD |
1316 | do { |
1317 | ret_len = fwrite(data, 1, len, fp); | |
1318 | } while (ret_len < 0 && errno == EINTR); | |
1319 | if (ret_len < 0) { | |
f6e2a9d2 FD |
1320 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1321 | "Writing in the metadata file stream"); | |
8dd99d00 FD |
1322 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR; |
1323 | goto error; | |
7cdc2bab | 1324 | } |
8b45963b | 1325 | BT_ASSERT(ret_len == len); |
f797424a | 1326 | *reply_len = len; |
8dd99d00 | 1327 | status = LTTNG_LIVE_GET_ONE_METADATA_STATUS_OK; |
f797424a | 1328 | |
7cdc2bab | 1329 | error: |
8dd99d00 | 1330 | free(data); |
f797424a FD |
1331 | |
1332 | end: | |
8dd99d00 | 1333 | return status; |
7cdc2bab MD |
1334 | } |
1335 | ||
1336 | /* | |
1337 | * Assign the fields from a lttng_viewer_index to a packet_index. | |
1338 | */ | |
1339 | static | |
1340 | void lttng_index_to_packet_index(struct lttng_viewer_index *lindex, | |
1341 | struct packet_index *pindex) | |
1342 | { | |
8b45963b PP |
1343 | BT_ASSERT(lindex); |
1344 | BT_ASSERT(pindex); | |
7cdc2bab MD |
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); | |
1352 | } | |
1353 | ||
1354 | BT_HIDDEN | |
bb18709b FD |
1355 | enum lttng_live_iterator_status lttng_live_get_next_index( |
1356 | struct lttng_live_msg_iter *lttng_live_msg_iter, | |
7cdc2bab MD |
1357 | struct lttng_live_stream_iterator *stream, |
1358 | struct packet_index *index) | |
1359 | { | |
1360 | struct lttng_viewer_cmd cmd; | |
1361 | struct lttng_viewer_get_next_index rq; | |
8dd99d00 | 1362 | enum lttng_live_viewer_status viewer_status; |
7cdc2bab | 1363 | struct lttng_viewer_index rp; |
8dd99d00 | 1364 | enum lttng_live_iterator_status status; |
bb18709b | 1365 | struct live_viewer_connection *viewer_connection = |
f6e2a9d2 FD |
1366 | lttng_live_msg_iter->viewer_connection; |
1367 | bt_self_component *self_comp = viewer_connection->self_comp; | |
7cdc2bab | 1368 | struct lttng_live_trace *trace = stream->trace; |
02b23da7 JR |
1369 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); |
1370 | char cmd_buf[cmd_buf_len]; | |
8dd99d00 | 1371 | uint32_t flags, rp_status; |
7cdc2bab | 1372 | |
f555be5d FD |
1373 | BT_COMP_LOGD("Requesting next index for stream: " |
1374 | "stream-id=%"PRIu64, stream->viewer_stream_id); | |
1375 | ||
7cdc2bab MD |
1376 | cmd.cmd = htobe32(LTTNG_VIEWER_GET_NEXT_INDEX); |
1377 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1378 | cmd.cmd_version = htobe32(0); | |
1379 | ||
02b23da7 | 1380 | |
7cdc2bab MD |
1381 | memset(&rq, 0, sizeof(rq)); |
1382 | rq.stream_id = htobe64(stream->viewer_stream_id); | |
1383 | ||
02b23da7 JR |
1384 | /* |
1385 | * Merge the cmd and connection request to prevent a write-write | |
1386 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1387 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1388 | */ | |
1389 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1390 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
8dd99d00 FD |
1391 | viewer_status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); |
1392 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1393 | viewer_handle_send_status(self_comp, NULL, | |
1394 | viewer_status, "get next index command"); | |
7cdc2bab MD |
1395 | goto error; |
1396 | } | |
7cdc2bab | 1397 | |
8dd99d00 FD |
1398 | viewer_status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); |
1399 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1400 | viewer_handle_recv_status(self_comp, NULL, | |
1401 | viewer_status, "get next index reply"); | |
7cdc2bab MD |
1402 | goto error; |
1403 | } | |
7cdc2bab MD |
1404 | |
1405 | flags = be32toh(rp.flags); | |
8dd99d00 | 1406 | rp_status = be32toh(rp.status); |
7cdc2bab | 1407 | |
8dd99d00 | 1408 | switch (rp_status) { |
7cdc2bab MD |
1409 | case LTTNG_VIEWER_INDEX_INACTIVE: |
1410 | { | |
1411 | uint64_t ctf_stream_class_id; | |
1412 | ||
f6e2a9d2 | 1413 | BT_COMP_LOGD("Received get_next_index response: inactive"); |
7cdc2bab MD |
1414 | memset(index, 0, sizeof(struct packet_index)); |
1415 | index->ts_cycles.timestamp_end = be64toh(rp.timestamp_end); | |
bb18709b | 1416 | stream->current_inactivity_ts = index->ts_cycles.timestamp_end; |
7cdc2bab MD |
1417 | ctf_stream_class_id = be64toh(rp.stream_id); |
1418 | if (stream->ctf_stream_class_id != -1ULL) { | |
8b45963b | 1419 | BT_ASSERT(stream->ctf_stream_class_id == |
7cdc2bab MD |
1420 | ctf_stream_class_id); |
1421 | } else { | |
1422 | stream->ctf_stream_class_id = ctf_stream_class_id; | |
1423 | } | |
1424 | stream->state = LTTNG_LIVE_STREAM_QUIESCENT; | |
8dd99d00 | 1425 | status = LTTNG_LIVE_ITERATOR_STATUS_OK; |
7cdc2bab MD |
1426 | break; |
1427 | } | |
1428 | case LTTNG_VIEWER_INDEX_OK: | |
1429 | { | |
1430 | uint64_t ctf_stream_class_id; | |
1431 | ||
f6e2a9d2 | 1432 | BT_COMP_LOGD("Received get_next_index response: OK"); |
7cdc2bab MD |
1433 | lttng_index_to_packet_index(&rp, index); |
1434 | ctf_stream_class_id = be64toh(rp.stream_id); | |
1435 | if (stream->ctf_stream_class_id != -1ULL) { | |
8b45963b | 1436 | BT_ASSERT(stream->ctf_stream_class_id == |
7cdc2bab MD |
1437 | ctf_stream_class_id); |
1438 | } else { | |
1439 | stream->ctf_stream_class_id = ctf_stream_class_id; | |
1440 | } | |
1441 | ||
1442 | stream->state = LTTNG_LIVE_STREAM_ACTIVE_DATA; | |
7cdc2bab MD |
1443 | |
1444 | if (flags & LTTNG_VIEWER_FLAG_NEW_METADATA) { | |
f6e2a9d2 | 1445 | BT_COMP_LOGD("Received get_next_index response: new metadata needed"); |
d6e1f86b | 1446 | trace->metadata_stream_state = LTTNG_LIVE_METADATA_STREAM_STATE_NEEDED; |
7cdc2bab MD |
1447 | } |
1448 | if (flags & LTTNG_VIEWER_FLAG_NEW_STREAM) { | |
f6e2a9d2 | 1449 | BT_COMP_LOGD("Received get_next_index response: new streams needed"); |
bb18709b | 1450 | lttng_live_need_new_streams(lttng_live_msg_iter); |
7cdc2bab | 1451 | } |
8dd99d00 | 1452 | status = LTTNG_LIVE_ITERATOR_STATUS_OK; |
7cdc2bab MD |
1453 | break; |
1454 | } | |
1455 | case LTTNG_VIEWER_INDEX_RETRY: | |
f6e2a9d2 | 1456 | BT_COMP_LOGD("Received get_next_index response: retry"); |
7cdc2bab | 1457 | memset(index, 0, sizeof(struct packet_index)); |
7cdc2bab | 1458 | stream->state = LTTNG_LIVE_STREAM_ACTIVE_NO_DATA; |
8dd99d00 | 1459 | status = LTTNG_LIVE_ITERATOR_STATUS_AGAIN; |
7cdc2bab MD |
1460 | goto end; |
1461 | case LTTNG_VIEWER_INDEX_HUP: | |
f6e2a9d2 | 1462 | BT_COMP_LOGD("Received get_next_index response: stream hung up"); |
7cdc2bab MD |
1463 | memset(index, 0, sizeof(struct packet_index)); |
1464 | index->offset = EOF; | |
7cdc2bab | 1465 | stream->state = LTTNG_LIVE_STREAM_EOF; |
5b337d32 | 1466 | stream->has_stream_hung_up = true; |
8dd99d00 | 1467 | status = LTTNG_LIVE_ITERATOR_STATUS_END; |
7cdc2bab MD |
1468 | break; |
1469 | case LTTNG_VIEWER_INDEX_ERR: | |
f6e2a9d2 | 1470 | BT_COMP_LOGD("Received get_next_index response: error"); |
7cdc2bab MD |
1471 | memset(index, 0, sizeof(struct packet_index)); |
1472 | stream->state = LTTNG_LIVE_STREAM_ACTIVE_NO_DATA; | |
8dd99d00 FD |
1473 | status = LTTNG_LIVE_ITERATOR_STATUS_ERROR; |
1474 | goto end; | |
7cdc2bab | 1475 | default: |
f6e2a9d2 | 1476 | BT_COMP_LOGD("Received get_next_index response: unknown value"); |
7cdc2bab MD |
1477 | memset(index, 0, sizeof(struct packet_index)); |
1478 | stream->state = LTTNG_LIVE_STREAM_ACTIVE_NO_DATA; | |
8dd99d00 FD |
1479 | status = LTTNG_LIVE_ITERATOR_STATUS_ERROR; |
1480 | goto end; | |
7cdc2bab | 1481 | } |
8dd99d00 | 1482 | goto end; |
7cdc2bab MD |
1483 | |
1484 | error: | |
8dd99d00 FD |
1485 | status = viewer_status_to_live_iterator_status(viewer_status); |
1486 | end: | |
1487 | return status; | |
7cdc2bab MD |
1488 | } |
1489 | ||
1490 | BT_HIDDEN | |
5d452e1f | 1491 | enum ctf_msg_iter_medium_status lttng_live_get_stream_bytes( |
bb18709b FD |
1492 | struct lttng_live_msg_iter *lttng_live_msg_iter, |
1493 | struct lttng_live_stream_iterator *stream, uint8_t *buf, | |
1494 | uint64_t offset, uint64_t req_len, uint64_t *recv_len) | |
7cdc2bab | 1495 | { |
8dd99d00 FD |
1496 | enum ctf_msg_iter_medium_status status; |
1497 | enum lttng_live_viewer_status viewer_status; | |
0b6986b4 | 1498 | struct lttng_viewer_trace_packet rp; |
7cdc2bab MD |
1499 | struct lttng_viewer_cmd cmd; |
1500 | struct lttng_viewer_get_packet rq; | |
bb18709b | 1501 | struct live_viewer_connection *viewer_connection = |
f6e2a9d2 FD |
1502 | lttng_live_msg_iter->viewer_connection; |
1503 | bt_self_component *self_comp = viewer_connection->self_comp; | |
7cdc2bab | 1504 | struct lttng_live_trace *trace = stream->trace; |
02b23da7 JR |
1505 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); |
1506 | char cmd_buf[cmd_buf_len]; | |
8dd99d00 | 1507 | uint32_t flags, rp_status; |
7cdc2bab | 1508 | |
5278d5ba | 1509 | BT_COMP_LOGD("lttng_live_get_stream_bytes: offset=%" PRIu64 ", req_len=%" PRIu64, |
7cdc2bab MD |
1510 | offset, req_len); |
1511 | cmd.cmd = htobe32(LTTNG_VIEWER_GET_PACKET); | |
1512 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1513 | cmd.cmd_version = htobe32(0); | |
1514 | ||
1515 | memset(&rq, 0, sizeof(rq)); | |
1516 | rq.stream_id = htobe64(stream->viewer_stream_id); | |
1517 | rq.offset = htobe64(offset); | |
1518 | rq.len = htobe32(req_len); | |
1519 | ||
02b23da7 JR |
1520 | /* |
1521 | * Merge the cmd and connection request to prevent a write-write | |
1522 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1523 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1524 | */ | |
1525 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1526 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
8dd99d00 FD |
1527 | viewer_status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); |
1528 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1529 | viewer_handle_send_status(self_comp, NULL, | |
1530 | viewer_status, "get data packet command"); | |
7cdc2bab MD |
1531 | goto error; |
1532 | } | |
7cdc2bab | 1533 | |
8dd99d00 FD |
1534 | viewer_status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); |
1535 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1536 | viewer_handle_recv_status(self_comp, NULL, | |
1537 | viewer_status, "get data packet reply"); | |
7cdc2bab MD |
1538 | goto error; |
1539 | } | |
1540 | ||
1541 | flags = be32toh(rp.flags); | |
8dd99d00 | 1542 | rp_status = be32toh(rp.status); |
7cdc2bab | 1543 | |
8dd99d00 | 1544 | switch (rp_status) { |
7cdc2bab MD |
1545 | case LTTNG_VIEWER_GET_PACKET_OK: |
1546 | req_len = be32toh(rp.len); | |
f6e2a9d2 FD |
1547 | BT_COMP_LOGD("Received get_data_packet response: Ok, " |
1548 | "packet size : %" PRIu64 "", req_len); | |
8dd99d00 | 1549 | status = CTF_MSG_ITER_MEDIUM_STATUS_OK; |
7cdc2bab MD |
1550 | break; |
1551 | case LTTNG_VIEWER_GET_PACKET_RETRY: | |
1552 | /* Unimplemented by relay daemon */ | |
f6e2a9d2 | 1553 | BT_COMP_LOGD("Received get_data_packet response: retry"); |
8dd99d00 | 1554 | status = CTF_MSG_ITER_MEDIUM_STATUS_AGAIN; |
7cdc2bab MD |
1555 | goto end; |
1556 | case LTTNG_VIEWER_GET_PACKET_ERR: | |
1557 | if (flags & LTTNG_VIEWER_FLAG_NEW_METADATA) { | |
5278d5ba | 1558 | BT_COMP_LOGD("get_data_packet: new metadata needed, try again later"); |
d6e1f86b | 1559 | trace->metadata_stream_state = LTTNG_LIVE_METADATA_STREAM_STATE_NEEDED; |
7cdc2bab MD |
1560 | } |
1561 | if (flags & LTTNG_VIEWER_FLAG_NEW_STREAM) { | |
5278d5ba | 1562 | BT_COMP_LOGD("get_data_packet: new streams needed, try again later"); |
bb18709b | 1563 | lttng_live_need_new_streams(lttng_live_msg_iter); |
7cdc2bab MD |
1564 | } |
1565 | if (flags & (LTTNG_VIEWER_FLAG_NEW_METADATA | |
1566 | | LTTNG_VIEWER_FLAG_NEW_STREAM)) { | |
8dd99d00 | 1567 | status = CTF_MSG_ITER_MEDIUM_STATUS_AGAIN; |
7cdc2bab MD |
1568 | goto end; |
1569 | } | |
f6e2a9d2 FD |
1570 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1571 | "Received get_data_packet response: error"); | |
8dd99d00 FD |
1572 | status = CTF_MSG_ITER_MEDIUM_STATUS_ERROR; |
1573 | goto end; | |
7cdc2bab | 1574 | case LTTNG_VIEWER_GET_PACKET_EOF: |
8dd99d00 | 1575 | status = CTF_MSG_ITER_MEDIUM_STATUS_EOF; |
7cdc2bab MD |
1576 | goto end; |
1577 | default: | |
f6e2a9d2 FD |
1578 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1579 | "Received get_data_packet response: unknown"); | |
8dd99d00 | 1580 | status = CTF_MSG_ITER_MEDIUM_STATUS_ERROR; |
7cdc2bab MD |
1581 | goto error; |
1582 | } | |
1583 | ||
1584 | if (req_len == 0) { | |
8dd99d00 | 1585 | status = CTF_MSG_ITER_MEDIUM_STATUS_ERROR; |
7cdc2bab MD |
1586 | goto error; |
1587 | } | |
1588 | ||
8dd99d00 FD |
1589 | viewer_status = lttng_live_recv(viewer_connection, buf, req_len); |
1590 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1591 | viewer_handle_recv_status(self_comp, NULL, | |
1592 | viewer_status, "get data packet"); | |
7cdc2bab MD |
1593 | goto error; |
1594 | } | |
8dd99d00 | 1595 | *recv_len = req_len; |
7cdc2bab | 1596 | |
8dd99d00 FD |
1597 | status = CTF_MSG_ITER_MEDIUM_STATUS_OK; |
1598 | goto end; | |
7cdc2bab | 1599 | error: |
8dd99d00 FD |
1600 | |
1601 | status = viewer_status_to_ctf_msg_iter_medium_status(viewer_status); | |
1602 | end: | |
1603 | return status; | |
7cdc2bab MD |
1604 | } |
1605 | ||
1606 | /* | |
1607 | * Request new streams for a session. | |
1608 | */ | |
1609 | BT_HIDDEN | |
bb18709b | 1610 | enum lttng_live_iterator_status lttng_live_get_new_streams( |
2428e031 SM |
1611 | struct lttng_live_session *session, |
1612 | bt_self_message_iterator *self_msg_iter) | |
7cdc2bab | 1613 | { |
bb18709b FD |
1614 | enum lttng_live_iterator_status status = |
1615 | LTTNG_LIVE_ITERATOR_STATUS_OK; | |
7cdc2bab MD |
1616 | struct lttng_viewer_cmd cmd; |
1617 | struct lttng_viewer_new_streams_request rq; | |
1618 | struct lttng_viewer_new_streams_response rp; | |
bb18709b FD |
1619 | struct lttng_live_msg_iter *lttng_live_msg_iter = |
1620 | session->lttng_live_msg_iter; | |
8dd99d00 | 1621 | enum lttng_live_viewer_status viewer_status; |
bb18709b FD |
1622 | struct live_viewer_connection *viewer_connection = |
1623 | lttng_live_msg_iter->viewer_connection; | |
f6e2a9d2 | 1624 | bt_self_component *self_comp = viewer_connection->self_comp; |
7cdc2bab | 1625 | uint32_t streams_count; |
02b23da7 JR |
1626 | const size_t cmd_buf_len = sizeof(cmd) + sizeof(rq); |
1627 | char cmd_buf[cmd_buf_len]; | |
7cdc2bab MD |
1628 | |
1629 | if (!session->new_streams_needed) { | |
8dd99d00 FD |
1630 | status = LTTNG_LIVE_ITERATOR_STATUS_OK; |
1631 | goto end; | |
7cdc2bab MD |
1632 | } |
1633 | ||
f555be5d FD |
1634 | BT_COMP_LOGD("Requesting new streams for session: " |
1635 | "session-id=%"PRIu64, session->id); | |
1636 | ||
7cdc2bab MD |
1637 | cmd.cmd = htobe32(LTTNG_VIEWER_GET_NEW_STREAMS); |
1638 | cmd.data_size = htobe64((uint64_t) sizeof(rq)); | |
1639 | cmd.cmd_version = htobe32(0); | |
1640 | ||
1641 | memset(&rq, 0, sizeof(rq)); | |
1642 | rq.session_id = htobe64(session->id); | |
1643 | ||
02b23da7 JR |
1644 | /* |
1645 | * Merge the cmd and connection request to prevent a write-write | |
1646 | * sequence on the TCP socket. Otherwise, a delayed ACK will prevent the | |
1647 | * second write to be performed quickly in presence of Nagle's algorithm. | |
1648 | */ | |
1649 | memcpy(cmd_buf, &cmd, sizeof(cmd)); | |
1650 | memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq)); | |
8dd99d00 FD |
1651 | viewer_status = lttng_live_send(viewer_connection, &cmd_buf, cmd_buf_len); |
1652 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1653 | viewer_handle_send_status(self_comp, NULL, | |
1654 | viewer_status, "get new streams command"); | |
1655 | status = viewer_status_to_live_iterator_status(viewer_status); | |
1656 | goto end; | |
7cdc2bab | 1657 | } |
7cdc2bab | 1658 | |
8dd99d00 FD |
1659 | viewer_status = lttng_live_recv(viewer_connection, &rp, sizeof(rp)); |
1660 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1661 | viewer_handle_recv_status(self_comp, NULL, | |
1662 | viewer_status, "get new streams reply"); | |
1663 | status = viewer_status_to_live_iterator_status(viewer_status); | |
1664 | goto end; | |
7cdc2bab | 1665 | } |
7cdc2bab MD |
1666 | |
1667 | streams_count = be32toh(rp.streams_count); | |
1668 | ||
1669 | switch(be32toh(rp.status)) { | |
1670 | case LTTNG_VIEWER_NEW_STREAMS_OK: | |
1671 | session->new_streams_needed = false; | |
1672 | break; | |
1673 | case LTTNG_VIEWER_NEW_STREAMS_NO_NEW: | |
1674 | session->new_streams_needed = false; | |
1675 | goto end; | |
1676 | case LTTNG_VIEWER_NEW_STREAMS_HUP: | |
1677 | session->new_streams_needed = false; | |
1678 | session->closed = true; | |
bb18709b | 1679 | status = LTTNG_LIVE_ITERATOR_STATUS_END; |
7cdc2bab MD |
1680 | goto end; |
1681 | case LTTNG_VIEWER_NEW_STREAMS_ERR: | |
f6e2a9d2 | 1682 | BT_COMP_LOGD("Received get_new_streams response: error"); |
8dd99d00 FD |
1683 | status = LTTNG_LIVE_ITERATOR_STATUS_ERROR; |
1684 | goto end; | |
7cdc2bab | 1685 | default: |
f6e2a9d2 FD |
1686 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, |
1687 | "Received get_new_streams response: Unknown:" | |
1688 | "return code %u", be32toh(rp.status)); | |
8dd99d00 FD |
1689 | status = LTTNG_LIVE_ITERATOR_STATUS_ERROR; |
1690 | goto end; | |
7cdc2bab MD |
1691 | } |
1692 | ||
8dd99d00 FD |
1693 | viewer_status = receive_streams(session, streams_count, self_msg_iter); |
1694 | if (viewer_status != LTTNG_LIVE_VIEWER_STATUS_OK) { | |
1695 | viewer_handle_recv_status(self_comp, NULL, | |
1696 | viewer_status, "new streams"); | |
1697 | status = viewer_status_to_live_iterator_status(viewer_status); | |
1698 | goto end; | |
7cdc2bab | 1699 | } |
7cdc2bab | 1700 | |
8dd99d00 FD |
1701 | status = LTTNG_LIVE_ITERATOR_STATUS_OK; |
1702 | end: | |
7cdc2bab MD |
1703 | return status; |
1704 | } | |
1705 | ||
1706 | BT_HIDDEN | |
8dd99d00 | 1707 | enum lttng_live_viewer_status live_viewer_connection_create( |
f6e2a9d2 FD |
1708 | bt_self_component *self_comp, |
1709 | bt_self_component_class *self_comp_class, | |
8dd99d00 FD |
1710 | bt_logging_level log_level, |
1711 | const char *url, bool in_query, | |
1712 | struct lttng_live_msg_iter *lttng_live_msg_iter, | |
1713 | struct live_viewer_connection **viewer) | |
7cdc2bab | 1714 | { |
bb18709b | 1715 | struct live_viewer_connection *viewer_connection; |
8dd99d00 | 1716 | enum lttng_live_viewer_status status; |
7cdc2bab | 1717 | |
bb18709b | 1718 | viewer_connection = g_new0(struct live_viewer_connection, 1); |
7cdc2bab | 1719 | |
ca06281d | 1720 | if (bt_socket_init(log_level) != 0) { |
f6e2a9d2 FD |
1721 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
1722 | self_comp_class, "Failed to init socket"); | |
8dd99d00 | 1723 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
a2147eb2 MJ |
1724 | goto error; |
1725 | } | |
1726 | ||
ca06281d PP |
1727 | viewer_connection->log_level = log_level; |
1728 | ||
f6e2a9d2 FD |
1729 | viewer_connection->self_comp = self_comp; |
1730 | viewer_connection->self_comp_class = self_comp_class; | |
ca06281d | 1731 | |
a2147eb2 | 1732 | viewer_connection->control_sock = BT_INVALID_SOCKET; |
7cdc2bab | 1733 | viewer_connection->port = -1; |
bb18709b FD |
1734 | viewer_connection->in_query = in_query; |
1735 | viewer_connection->lttng_live_msg_iter = lttng_live_msg_iter; | |
7cdc2bab MD |
1736 | viewer_connection->url = g_string_new(url); |
1737 | if (!viewer_connection->url) { | |
f6e2a9d2 FD |
1738 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
1739 | self_comp_class, "Failed to allocate URL buffer"); | |
8dd99d00 | 1740 | status = LTTNG_LIVE_VIEWER_STATUS_ERROR; |
7cdc2bab MD |
1741 | goto error; |
1742 | } | |
1743 | ||
f555be5d FD |
1744 | BT_COMP_OR_COMP_CLASS_LOGD(self_comp, self_comp_class, |
1745 | "Establishing connection to url \"%s\"...", url); | |
8dd99d00 FD |
1746 | status = lttng_live_connect_viewer(viewer_connection); |
1747 | /* | |
1748 | * Only print error and append cause in case of error. not in case of | |
1749 | * interruption. | |
1750 | */ | |
1751 | if (status == LTTNG_LIVE_VIEWER_STATUS_ERROR) { | |
f6e2a9d2 FD |
1752 | BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, |
1753 | self_comp_class, "Failed to establish connection: " | |
1754 | "url=\"%s\"", url); | |
1755 | goto error; | |
8dd99d00 FD |
1756 | } else if (status == LTTNG_LIVE_VIEWER_STATUS_INTERRUPTED) { |
1757 | goto error; | |
7cdc2bab | 1758 | } |
f555be5d FD |
1759 | BT_COMP_OR_COMP_CLASS_LOGD(self_comp, self_comp_class, |
1760 | "Connection to url \"%s\" is established", url); | |
8dd99d00 FD |
1761 | |
1762 | *viewer = viewer_connection; | |
1763 | status = LTTNG_LIVE_VIEWER_STATUS_OK; | |
1764 | goto end; | |
7cdc2bab | 1765 | |
7cdc2bab | 1766 | error: |
487e99c4 PP |
1767 | if (viewer_connection) { |
1768 | live_viewer_connection_destroy(viewer_connection); | |
1769 | } | |
8dd99d00 FD |
1770 | end: |
1771 | return status; | |
7cdc2bab MD |
1772 | } |
1773 | ||
1774 | BT_HIDDEN | |
bb18709b FD |
1775 | void live_viewer_connection_destroy( |
1776 | struct live_viewer_connection *viewer_connection) | |
7cdc2bab | 1777 | { |
f555be5d FD |
1778 | bt_self_component *self_comp = viewer_connection->self_comp; |
1779 | bt_self_component_class *self_comp_class = viewer_connection->self_comp_class; | |
31ee2162 FD |
1780 | |
1781 | if (!viewer_connection) { | |
1782 | goto end; | |
1783 | } | |
1784 | ||
f555be5d FD |
1785 | BT_COMP_OR_COMP_CLASS_LOGD(self_comp, self_comp_class, |
1786 | "Closing connection to relay:" | |
1787 | "relay-url=\"%s\"", viewer_connection->url->str); | |
1788 | ||
7cdc2bab | 1789 | lttng_live_disconnect_viewer(viewer_connection); |
31ee2162 | 1790 | |
487e99c4 PP |
1791 | if (viewer_connection->url) { |
1792 | g_string_free(viewer_connection->url, true); | |
1793 | } | |
31ee2162 | 1794 | |
94b828f3 | 1795 | if (viewer_connection->relay_hostname) { |
bb18709b | 1796 | g_string_free(viewer_connection->relay_hostname, true); |
94b828f3 | 1797 | } |
31ee2162 | 1798 | |
94b828f3 | 1799 | if (viewer_connection->target_hostname) { |
bb18709b | 1800 | g_string_free(viewer_connection->target_hostname, true); |
94b828f3 | 1801 | } |
31ee2162 | 1802 | |
94b828f3 | 1803 | if (viewer_connection->session_name) { |
bb18709b | 1804 | g_string_free(viewer_connection->session_name, true); |
94b828f3 | 1805 | } |
31ee2162 | 1806 | |
f555be5d FD |
1807 | if (viewer_connection->proto) { |
1808 | g_string_free(viewer_connection->proto, true); | |
1809 | } | |
1810 | ||
7cdc2bab | 1811 | g_free(viewer_connection); |
a2147eb2 MJ |
1812 | |
1813 | bt_socket_fini(); | |
31ee2162 FD |
1814 | |
1815 | end: | |
1816 | return; | |
7cdc2bab | 1817 | } |