Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 1 | /* |
| 2 | * (C) 2015 by Sysmocom s.f.m.c. GmbH |
| 3 | * |
| 4 | * Author: Jacob Erlbeck <jerlbeck@sysmocom.de> |
| 5 | * |
| 6 | * All Rights Reserved |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License along |
| 19 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 20 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 21 | * |
| 22 | */ |
| 23 | |
| 24 | #include <osmocom/core/stats.h> |
| 25 | |
| 26 | #include <unistd.h> |
| 27 | #include <string.h> |
| 28 | #include <stdint.h> |
| 29 | #include <errno.h> |
| 30 | #include <stdio.h> |
| 31 | #include <sys/socket.h> |
| 32 | #include <netinet/ip.h> |
| 33 | #include <arpa/inet.h> |
| 34 | |
| 35 | #include <osmocom/core/utils.h> |
| 36 | #include <osmocom/core/logging.h> |
| 37 | #include <osmocom/core/rate_ctr.h> |
| 38 | #include <osmocom/core/stat_item.h> |
Jacob Erlbeck | b1dbfb4 | 2015-10-26 11:58:38 +0100 | [diff] [blame] | 39 | #include <osmocom/core/timer.h> |
Jacob Erlbeck | c8f47b6 | 2015-10-26 14:42:05 +0100 | [diff] [blame] | 40 | #include <osmocom/core/statistics.h> |
Jacob Erlbeck | d01acfc | 2015-10-26 16:22:45 +0100 | [diff] [blame] | 41 | #include <osmocom/core/msgb.h> |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 42 | |
| 43 | /* TODO: register properly */ |
| 44 | #define DSTATS DLGLOBAL |
| 45 | |
Jacob Erlbeck | b1dbfb4 | 2015-10-26 11:58:38 +0100 | [diff] [blame] | 46 | #define STATS_DEFAULT_INTERVAL 5 /* secs */ |
Jacob Erlbeck | d01acfc | 2015-10-26 16:22:45 +0100 | [diff] [blame] | 47 | #define STATS_DEFAULT_STATSD_BUFLEN 256 |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 48 | |
| 49 | static LLIST_HEAD(stats_reporter_list); |
| 50 | static void *stats_ctx = NULL; |
Jacob Erlbeck | b1dbfb4 | 2015-10-26 11:58:38 +0100 | [diff] [blame] | 51 | static int is_initialised = 0; |
| 52 | static int32_t current_stat_item_index = 0; |
| 53 | |
| 54 | static struct stats_config s_stats_config = { |
| 55 | .interval = STATS_DEFAULT_INTERVAL, |
| 56 | }; |
| 57 | struct stats_config *stats_config = &s_stats_config; |
| 58 | |
| 59 | static struct osmo_timer_list stats_timer; |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 60 | |
| 61 | static int stats_reporter_statsd_open(struct stats_reporter *srep); |
| 62 | static int stats_reporter_statsd_close(struct stats_reporter *srep); |
Jacob Erlbeck | 490b38f | 2015-10-27 15:10:28 +0100 | [diff] [blame^] | 63 | static int stats_reporter_statsd_send_counter(struct stats_reporter *srep, |
| 64 | const struct rate_ctr_group *ctrg, |
| 65 | const struct rate_ctr_desc *desc, |
| 66 | int64_t value, int64_t delta); |
| 67 | static int stats_reporter_statsd_send_item(struct stats_reporter *srep, |
| 68 | const struct stat_item_group *statg, |
| 69 | const struct stat_item_desc *desc, int value); |
| 70 | |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 71 | static int stats_reporter_send(struct stats_reporter *srep, const char *data, |
| 72 | int data_len); |
Jacob Erlbeck | d01acfc | 2015-10-26 16:22:45 +0100 | [diff] [blame] | 73 | static int stats_reporter_send_buffer(struct stats_reporter *srep); |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 74 | |
| 75 | static int update_srep_config(struct stats_reporter *srep) |
| 76 | { |
| 77 | int rc = 0; |
| 78 | |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 79 | if (srep->running) { |
Jacob Erlbeck | 490b38f | 2015-10-27 15:10:28 +0100 | [diff] [blame^] | 80 | if (srep->close) |
| 81 | rc = srep->close(srep); |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 82 | srep->running = 0; |
| 83 | } |
| 84 | |
| 85 | if (!srep->enabled) |
| 86 | return rc; |
| 87 | |
Jacob Erlbeck | 490b38f | 2015-10-27 15:10:28 +0100 | [diff] [blame^] | 88 | if (srep->open) |
| 89 | rc = srep->open(srep); |
| 90 | else |
| 91 | rc = 0; |
| 92 | |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 93 | if (rc < 0) |
| 94 | srep->enabled = 0; |
| 95 | else |
| 96 | srep->running = 1; |
| 97 | |
| 98 | return rc; |
| 99 | } |
| 100 | |
Jacob Erlbeck | b1dbfb4 | 2015-10-26 11:58:38 +0100 | [diff] [blame] | 101 | static void stats_timer_cb(void *data) |
| 102 | { |
| 103 | int interval = stats_config->interval; |
| 104 | |
| 105 | if (!llist_empty(&stats_reporter_list)) |
| 106 | stats_report(); |
| 107 | |
| 108 | osmo_timer_schedule(&stats_timer, interval, 0); |
| 109 | } |
| 110 | |
| 111 | static int start_timer() |
| 112 | { |
| 113 | if (!is_initialised) |
| 114 | return -ESRCH; |
| 115 | |
| 116 | stats_timer.cb = stats_timer_cb; |
| 117 | osmo_timer_schedule(&stats_timer, 0, 1); |
| 118 | |
| 119 | return 0; |
| 120 | } |
| 121 | |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 122 | struct stats_reporter *stats_reporter_alloc(enum stats_reporter_type type, |
| 123 | const char *name) |
| 124 | { |
| 125 | struct stats_reporter *srep; |
| 126 | srep = talloc_zero(stats_ctx, struct stats_reporter); |
| 127 | OSMO_ASSERT(srep); |
| 128 | srep->type = type; |
| 129 | if (name) |
| 130 | srep->name = talloc_strdup(srep, name); |
| 131 | srep->fd = -1; |
| 132 | |
| 133 | llist_add(&srep->list, &stats_reporter_list); |
| 134 | |
| 135 | return srep; |
| 136 | } |
| 137 | |
| 138 | void stats_reporter_free(struct stats_reporter *srep) |
| 139 | { |
| 140 | stats_reporter_disable(srep); |
| 141 | llist_del(&srep->list); |
| 142 | talloc_free(srep); |
| 143 | } |
| 144 | |
| 145 | void stats_init(void *ctx) |
| 146 | { |
| 147 | stats_ctx = ctx; |
Jacob Erlbeck | c27671c | 2015-10-26 12:32:07 +0100 | [diff] [blame] | 148 | stat_item_discard_all(¤t_stat_item_index); |
Jacob Erlbeck | b1dbfb4 | 2015-10-26 11:58:38 +0100 | [diff] [blame] | 149 | |
| 150 | is_initialised = 1; |
| 151 | start_timer(); |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 152 | } |
| 153 | |
| 154 | struct stats_reporter *stats_reporter_find(enum stats_reporter_type type, |
| 155 | const char *name) |
| 156 | { |
| 157 | struct stats_reporter *srep; |
| 158 | llist_for_each_entry(srep, &stats_reporter_list, list) { |
| 159 | if (srep->type != type) |
| 160 | continue; |
| 161 | if (srep->name != name) { |
| 162 | if (name == NULL || srep->name == NULL || |
| 163 | strcmp(name, srep->name) != 0) |
| 164 | continue; |
| 165 | } |
| 166 | return srep; |
| 167 | } |
| 168 | return NULL; |
| 169 | } |
| 170 | |
| 171 | int stats_reporter_set_remote_addr(struct stats_reporter *srep, const char *addr) |
| 172 | { |
| 173 | int rc; |
| 174 | struct sockaddr_in *sock_addr = (struct sockaddr_in *)&srep->dest_addr; |
| 175 | struct in_addr inaddr; |
| 176 | |
Jacob Erlbeck | ed197fd | 2015-10-27 14:43:24 +0100 | [diff] [blame] | 177 | if (!srep->have_net_config) |
| 178 | return -ENOTSUP; |
| 179 | |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 180 | OSMO_ASSERT(addr != NULL); |
| 181 | |
| 182 | rc = inet_pton(AF_INET, addr, &inaddr); |
| 183 | if (rc <= 0) |
| 184 | return -EINVAL; |
| 185 | |
| 186 | sock_addr->sin_addr = inaddr; |
| 187 | sock_addr->sin_family = AF_INET; |
| 188 | srep->dest_addr_len = sizeof(*sock_addr); |
| 189 | |
| 190 | talloc_free(srep->dest_addr_str); |
| 191 | srep->dest_addr_str = talloc_strdup(srep, addr); |
| 192 | |
| 193 | return update_srep_config(srep); |
| 194 | } |
| 195 | |
| 196 | int stats_reporter_set_remote_port(struct stats_reporter *srep, int port) |
| 197 | { |
| 198 | struct sockaddr_in *sock_addr = (struct sockaddr_in *)&srep->dest_addr; |
| 199 | |
Jacob Erlbeck | ed197fd | 2015-10-27 14:43:24 +0100 | [diff] [blame] | 200 | if (!srep->have_net_config) |
| 201 | return -ENOTSUP; |
| 202 | |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 203 | srep->dest_port = port; |
| 204 | sock_addr->sin_port = htons(port); |
| 205 | |
| 206 | return update_srep_config(srep); |
| 207 | } |
| 208 | |
| 209 | int stats_reporter_set_local_addr(struct stats_reporter *srep, const char *addr) |
| 210 | { |
| 211 | int rc; |
| 212 | struct sockaddr_in *sock_addr = (struct sockaddr_in *)&srep->bind_addr; |
| 213 | struct in_addr inaddr; |
| 214 | |
Jacob Erlbeck | ed197fd | 2015-10-27 14:43:24 +0100 | [diff] [blame] | 215 | if (!srep->have_net_config) |
| 216 | return -ENOTSUP; |
| 217 | |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 218 | if (addr) { |
| 219 | rc = inet_pton(AF_INET, addr, &inaddr); |
| 220 | if (rc <= 0) |
| 221 | return -EINVAL; |
| 222 | } else { |
| 223 | addr = INADDR_ANY; |
| 224 | } |
| 225 | |
| 226 | sock_addr->sin_addr = inaddr; |
| 227 | sock_addr->sin_family = AF_INET; |
| 228 | srep->bind_addr_len = addr ? sizeof(*sock_addr) : 0; |
| 229 | |
| 230 | talloc_free(srep->bind_addr_str); |
| 231 | srep->bind_addr_str = addr ? talloc_strdup(srep, addr) : NULL; |
| 232 | |
| 233 | return update_srep_config(srep); |
| 234 | } |
| 235 | |
Jacob Erlbeck | d01acfc | 2015-10-26 16:22:45 +0100 | [diff] [blame] | 236 | int stats_reporter_set_mtu(struct stats_reporter *srep, int mtu) |
| 237 | { |
Jacob Erlbeck | ed197fd | 2015-10-27 14:43:24 +0100 | [diff] [blame] | 238 | if (!srep->have_net_config) |
| 239 | return -ENOTSUP; |
| 240 | |
Jacob Erlbeck | d01acfc | 2015-10-26 16:22:45 +0100 | [diff] [blame] | 241 | if (mtu < 0) |
| 242 | return -EINVAL; |
| 243 | |
| 244 | srep->mtu = mtu; |
| 245 | |
| 246 | return update_srep_config(srep); |
| 247 | } |
| 248 | |
Jacob Erlbeck | b1dbfb4 | 2015-10-26 11:58:38 +0100 | [diff] [blame] | 249 | int stats_set_interval(int interval) |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 250 | { |
Jacob Erlbeck | b1dbfb4 | 2015-10-26 11:58:38 +0100 | [diff] [blame] | 251 | if (interval <= 0) |
| 252 | return -EINVAL; |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 253 | |
Jacob Erlbeck | b1dbfb4 | 2015-10-26 11:58:38 +0100 | [diff] [blame] | 254 | stats_config->interval = interval; |
| 255 | if (is_initialised) |
| 256 | start_timer(); |
| 257 | |
| 258 | return 0; |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 259 | } |
| 260 | |
| 261 | int stats_reporter_set_name_prefix(struct stats_reporter *srep, const char *prefix) |
| 262 | { |
| 263 | talloc_free(srep->name_prefix); |
| 264 | srep->name_prefix = prefix ? talloc_strdup(srep, prefix) : NULL; |
| 265 | |
| 266 | return update_srep_config(srep); |
| 267 | } |
| 268 | |
| 269 | int stats_reporter_enable(struct stats_reporter *srep) |
| 270 | { |
| 271 | srep->enabled = 1; |
| 272 | |
| 273 | return update_srep_config(srep); |
| 274 | } |
| 275 | |
| 276 | int stats_reporter_disable(struct stats_reporter *srep) |
| 277 | { |
| 278 | srep->enabled = 0; |
| 279 | |
| 280 | return update_srep_config(srep); |
| 281 | } |
| 282 | |
| 283 | static int stats_reporter_send(struct stats_reporter *srep, const char *data, |
| 284 | int data_len) |
| 285 | { |
| 286 | int rc; |
| 287 | |
| 288 | rc = sendto(srep->fd, data, data_len, MSG_NOSIGNAL | MSG_DONTWAIT, |
| 289 | &srep->dest_addr, srep->dest_addr_len); |
| 290 | |
| 291 | if (rc == -1) |
| 292 | rc = -errno; |
| 293 | |
| 294 | return rc; |
| 295 | } |
| 296 | |
Jacob Erlbeck | d01acfc | 2015-10-26 16:22:45 +0100 | [diff] [blame] | 297 | static int stats_reporter_send_buffer(struct stats_reporter *srep) |
| 298 | { |
| 299 | int rc; |
| 300 | |
| 301 | if (!srep->buffer || msgb_length(srep->buffer) == 0) |
| 302 | return 0; |
| 303 | |
| 304 | rc = stats_reporter_send(srep, |
| 305 | (const char *)msgb_data(srep->buffer), msgb_length(srep->buffer)); |
| 306 | |
| 307 | msgb_trim(srep->buffer, 0); |
| 308 | |
| 309 | return rc; |
| 310 | } |
| 311 | |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 312 | /*** statsd reporter ***/ |
| 313 | |
| 314 | struct stats_reporter *stats_reporter_create_statsd(const char *name) |
| 315 | { |
| 316 | struct stats_reporter *srep; |
| 317 | srep = stats_reporter_alloc(STATS_REPORTER_STATSD, name); |
| 318 | |
Jacob Erlbeck | ed197fd | 2015-10-27 14:43:24 +0100 | [diff] [blame] | 319 | srep->have_net_config = 1; |
| 320 | |
Jacob Erlbeck | 490b38f | 2015-10-27 15:10:28 +0100 | [diff] [blame^] | 321 | srep->open = stats_reporter_statsd_open; |
| 322 | srep->close = stats_reporter_statsd_close; |
| 323 | srep->send_counter = stats_reporter_statsd_send_counter; |
| 324 | srep->send_item = stats_reporter_statsd_send_item; |
| 325 | |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 326 | return srep; |
| 327 | } |
| 328 | |
| 329 | static int stats_reporter_statsd_open(struct stats_reporter *srep) |
| 330 | { |
| 331 | int sock; |
| 332 | int rc; |
Jacob Erlbeck | d01acfc | 2015-10-26 16:22:45 +0100 | [diff] [blame] | 333 | int buffer_size = STATS_DEFAULT_STATSD_BUFLEN; |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 334 | |
| 335 | if (srep->fd != -1) |
| 336 | stats_reporter_statsd_close(srep); |
| 337 | |
| 338 | sock = socket(AF_INET, SOCK_DGRAM, 0); |
| 339 | if (sock == -1) |
| 340 | return -errno; |
| 341 | |
| 342 | if (srep->bind_addr_len > 0) { |
| 343 | rc = bind(sock, &srep->bind_addr, srep->bind_addr_len); |
| 344 | if (rc == -1) |
| 345 | goto failed; |
| 346 | } |
| 347 | |
| 348 | srep->fd = sock; |
| 349 | |
Jacob Erlbeck | d01acfc | 2015-10-26 16:22:45 +0100 | [diff] [blame] | 350 | if (srep->mtu > 0) { |
| 351 | buffer_size = srep->mtu - 20 /* IP */ - 8 /* UDP */; |
| 352 | srep->agg_enabled = 1; |
| 353 | } |
| 354 | |
| 355 | srep->buffer = msgb_alloc(buffer_size, "stats buffer"); |
| 356 | |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 357 | return 0; |
| 358 | |
| 359 | failed: |
| 360 | rc = -errno; |
| 361 | close(sock); |
| 362 | |
| 363 | return rc; |
| 364 | } |
| 365 | |
| 366 | static int stats_reporter_statsd_close(struct stats_reporter *srep) |
| 367 | { |
| 368 | int rc; |
| 369 | if (srep->fd == -1) |
| 370 | return -EBADF; |
| 371 | |
Jacob Erlbeck | d01acfc | 2015-10-26 16:22:45 +0100 | [diff] [blame] | 372 | stats_reporter_send_buffer(srep); |
| 373 | |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 374 | rc = close(srep->fd); |
| 375 | srep->fd = -1; |
Jacob Erlbeck | d01acfc | 2015-10-26 16:22:45 +0100 | [diff] [blame] | 376 | msgb_free(srep->buffer); |
| 377 | srep->buffer = NULL; |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 378 | return rc == -1 ? -errno : 0; |
| 379 | } |
| 380 | |
| 381 | static int stats_reporter_statsd_send(struct stats_reporter *srep, |
| 382 | const char *name1, int index1, const char *name2, int value, |
| 383 | const char *unit) |
| 384 | { |
Jacob Erlbeck | d01acfc | 2015-10-26 16:22:45 +0100 | [diff] [blame] | 385 | char *buf; |
| 386 | int buf_size; |
| 387 | int nchars, rc = 0; |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 388 | char *fmt = NULL; |
Jacob Erlbeck | d01acfc | 2015-10-26 16:22:45 +0100 | [diff] [blame] | 389 | int old_len = msgb_length(srep->buffer); |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 390 | |
| 391 | if (name1) { |
| 392 | if (index1 > 0) |
Jacob Erlbeck | d01acfc | 2015-10-26 16:22:45 +0100 | [diff] [blame] | 393 | fmt = "%1$s.%2$s.%6$d.%3$s:%4$d|%5$s"; |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 394 | else |
Jacob Erlbeck | d01acfc | 2015-10-26 16:22:45 +0100 | [diff] [blame] | 395 | fmt = "%1$s.%2$s.%3$s:%4$d|%5$s"; |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 396 | } else { |
Jacob Erlbeck | d01acfc | 2015-10-26 16:22:45 +0100 | [diff] [blame] | 397 | fmt = "%1$s.%2$0.0s%3$s:%4$d|%5$s"; |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 398 | } |
| 399 | if (!srep->name_prefix) |
| 400 | fmt += 5; /* skip prefix part */ |
| 401 | |
Jacob Erlbeck | d01acfc | 2015-10-26 16:22:45 +0100 | [diff] [blame] | 402 | if (srep->agg_enabled) { |
| 403 | if (msgb_length(srep->buffer) > 0 && |
| 404 | msgb_tailroom(srep->buffer) > 0) |
| 405 | { |
| 406 | msgb_put_u8(srep->buffer, '\n'); |
| 407 | } |
| 408 | } |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 409 | |
Jacob Erlbeck | d01acfc | 2015-10-26 16:22:45 +0100 | [diff] [blame] | 410 | buf = (char *)msgb_put(srep->buffer, 0); |
| 411 | buf_size = msgb_tailroom(srep->buffer); |
| 412 | |
| 413 | nchars = snprintf(buf, buf_size, fmt, |
| 414 | srep->name_prefix, name1, name2, |
| 415 | value, unit, index1); |
| 416 | |
| 417 | if (nchars >= buf_size) { |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 418 | /* Truncated */ |
Jacob Erlbeck | d01acfc | 2015-10-26 16:22:45 +0100 | [diff] [blame] | 419 | /* Restore original buffer (without trailing LF) */ |
| 420 | msgb_trim(srep->buffer, old_len); |
| 421 | /* Send it */ |
| 422 | rc = stats_reporter_send_buffer(srep); |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 423 | |
Jacob Erlbeck | d01acfc | 2015-10-26 16:22:45 +0100 | [diff] [blame] | 424 | /* Try again */ |
| 425 | buf = (char *)msgb_put(srep->buffer, 0); |
| 426 | buf_size = msgb_tailroom(srep->buffer); |
| 427 | |
| 428 | nchars = snprintf(buf, buf_size, fmt, |
| 429 | srep->name_prefix, name1, name2, |
| 430 | value, unit, index1); |
| 431 | |
| 432 | if (nchars >= buf_size) |
| 433 | return -EMSGSIZE; |
| 434 | } |
| 435 | |
| 436 | if (nchars > 0) |
| 437 | msgb_trim(srep->buffer, msgb_length(srep->buffer) + nchars); |
| 438 | |
| 439 | if (!srep->agg_enabled) |
| 440 | rc = stats_reporter_send_buffer(srep); |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 441 | |
| 442 | return rc; |
| 443 | } |
| 444 | |
| 445 | static int stats_reporter_statsd_send_counter(struct stats_reporter *srep, |
| 446 | const struct rate_ctr_group *ctrg, |
| 447 | const struct rate_ctr_desc *desc, |
| 448 | int64_t value, int64_t delta) |
| 449 | { |
| 450 | if (ctrg) |
| 451 | return stats_reporter_statsd_send(srep, |
| 452 | ctrg->desc->group_name_prefix, |
| 453 | ctrg->idx, |
| 454 | desc->name, delta, "c"); |
| 455 | else |
| 456 | return stats_reporter_statsd_send(srep, |
| 457 | NULL, -1, |
| 458 | desc->name, delta, "c"); |
| 459 | } |
| 460 | |
| 461 | static int stats_reporter_statsd_send_item(struct stats_reporter *srep, |
| 462 | const struct stat_item_group *statg, |
| 463 | const struct stat_item_desc *desc, int value) |
| 464 | { |
| 465 | return stats_reporter_statsd_send(srep, |
| 466 | statg->desc->group_name_prefix, statg->idx, |
| 467 | desc->name, value, desc->unit); |
| 468 | } |
| 469 | |
| 470 | /*** generic rate counter support ***/ |
| 471 | |
| 472 | static int stats_reporter_send_counter(struct stats_reporter *srep, |
| 473 | const struct rate_ctr_group *ctrg, |
| 474 | const struct rate_ctr_desc *desc, |
| 475 | int64_t value, int64_t delta) |
| 476 | { |
Jacob Erlbeck | 490b38f | 2015-10-27 15:10:28 +0100 | [diff] [blame^] | 477 | if (!srep->send_counter) |
| 478 | return 0; |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 479 | |
Jacob Erlbeck | 490b38f | 2015-10-27 15:10:28 +0100 | [diff] [blame^] | 480 | return srep->send_counter(srep, ctrg, desc, value, delta); |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 481 | } |
| 482 | |
| 483 | static int rate_ctr_handler( |
| 484 | struct rate_ctr_group *ctrg, struct rate_ctr *ctr, |
| 485 | const struct rate_ctr_desc *desc, void *sctx_) |
| 486 | { |
| 487 | struct stats_reporter *srep; |
| 488 | int rc; |
| 489 | int64_t delta = rate_ctr_difference(ctr); |
| 490 | |
| 491 | if (delta == 0) |
| 492 | return 0; |
| 493 | |
| 494 | llist_for_each_entry(srep, &stats_reporter_list, list) { |
| 495 | if (!srep->running) |
| 496 | continue; |
| 497 | |
| 498 | rc = stats_reporter_send_counter(srep, ctrg, desc, |
| 499 | ctr->current, delta); |
| 500 | |
| 501 | /* TODO: handle rc (log?, inc counter(!)?) or remove it */ |
| 502 | } |
| 503 | |
| 504 | return 0; |
| 505 | } |
| 506 | |
| 507 | static int rate_ctr_group_handler(struct rate_ctr_group *ctrg, void *sctx_) |
| 508 | { |
| 509 | rate_ctr_for_each_counter(ctrg, rate_ctr_handler, sctx_); |
| 510 | |
| 511 | return 0; |
| 512 | } |
| 513 | |
Jacob Erlbeck | c27671c | 2015-10-26 12:32:07 +0100 | [diff] [blame] | 514 | /*** stat item support ***/ |
| 515 | |
| 516 | static int stats_reporter_send_item(struct stats_reporter *srep, |
| 517 | const struct stat_item_group *statg, |
| 518 | const struct stat_item_desc *desc, |
| 519 | int32_t value) |
| 520 | { |
Jacob Erlbeck | 490b38f | 2015-10-27 15:10:28 +0100 | [diff] [blame^] | 521 | if (!srep->send_item) |
| 522 | return 0; |
Jacob Erlbeck | c27671c | 2015-10-26 12:32:07 +0100 | [diff] [blame] | 523 | |
Jacob Erlbeck | 490b38f | 2015-10-27 15:10:28 +0100 | [diff] [blame^] | 524 | return srep->send_item(srep, statg, desc, value); |
Jacob Erlbeck | c27671c | 2015-10-26 12:32:07 +0100 | [diff] [blame] | 525 | } |
| 526 | |
| 527 | static int stat_item_handler( |
| 528 | struct stat_item_group *statg, struct stat_item *item, void *sctx_) |
| 529 | { |
| 530 | struct stats_reporter *srep; |
| 531 | int rc; |
| 532 | int32_t idx = current_stat_item_index; |
| 533 | int32_t value; |
| 534 | |
| 535 | while (stat_item_get_next(item, &idx, &value) > 0) { |
| 536 | llist_for_each_entry(srep, &stats_reporter_list, list) { |
| 537 | if (!srep->running) |
| 538 | continue; |
| 539 | |
| 540 | rc = stats_reporter_send_item(srep, statg, |
| 541 | item->desc, value); |
| 542 | } |
| 543 | } |
| 544 | |
| 545 | return 0; |
| 546 | } |
| 547 | |
| 548 | static int stat_item_group_handler(struct stat_item_group *statg, void *sctx_) |
| 549 | { |
| 550 | stat_item_for_each_item(statg, stat_item_handler, sctx_); |
| 551 | stat_item_discard_all(¤t_stat_item_index); |
| 552 | |
| 553 | return 0; |
| 554 | } |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 555 | |
Jacob Erlbeck | c8f47b6 | 2015-10-26 14:42:05 +0100 | [diff] [blame] | 556 | /*** osmo counter support ***/ |
| 557 | |
| 558 | static int handle_counter(struct osmo_counter *counter, void *sctx_) |
| 559 | { |
| 560 | struct stats_reporter *srep; |
| 561 | int rc; |
| 562 | struct rate_ctr_desc desc = {0}; |
| 563 | /* Fake a rate counter description */ |
| 564 | desc.name = counter->name; |
| 565 | desc.description = counter->description; |
| 566 | |
| 567 | int delta = osmo_counter_difference(counter); |
| 568 | |
| 569 | if (delta == 0) |
| 570 | return 0; |
| 571 | |
| 572 | llist_for_each_entry(srep, &stats_reporter_list, list) { |
| 573 | if (!srep->running) |
| 574 | continue; |
| 575 | |
| 576 | rc = stats_reporter_send_counter(srep, NULL, &desc, |
| 577 | counter->value, delta); |
| 578 | |
| 579 | /* TODO: handle rc (log?, inc counter(!)?) */ |
| 580 | } |
| 581 | |
| 582 | return 0; |
| 583 | } |
| 584 | |
| 585 | |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 586 | /*** main reporting function ***/ |
| 587 | |
Jacob Erlbeck | d01acfc | 2015-10-26 16:22:45 +0100 | [diff] [blame] | 588 | static void flush_all_reporters() |
| 589 | { |
| 590 | struct stats_reporter *srep; |
| 591 | |
| 592 | llist_for_each_entry(srep, &stats_reporter_list, list) { |
| 593 | if (!srep->running) |
| 594 | continue; |
| 595 | |
| 596 | stats_reporter_send_buffer(srep); |
| 597 | } |
| 598 | } |
| 599 | |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 600 | int stats_report() |
| 601 | { |
Jacob Erlbeck | c8f47b6 | 2015-10-26 14:42:05 +0100 | [diff] [blame] | 602 | osmo_counters_for_each(handle_counter, NULL); |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 603 | rate_ctr_for_each_group(rate_ctr_group_handler, NULL); |
Jacob Erlbeck | c27671c | 2015-10-26 12:32:07 +0100 | [diff] [blame] | 604 | stat_item_for_each_group(stat_item_group_handler, NULL); |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 605 | |
Jacob Erlbeck | d01acfc | 2015-10-26 16:22:45 +0100 | [diff] [blame] | 606 | flush_all_reporters(); |
| 607 | |
Jacob Erlbeck | 95bf8280 | 2015-10-20 19:05:52 +0200 | [diff] [blame] | 608 | return 0; |
| 609 | } |