| 1 | #include <stdio.h> |
| 2 | #include <stdlib.h> |
| 3 | #include <unistd.h> |
| 4 | #include <limits.h> |
| 5 | #include <errno.h> |
| 6 | #include <fcntl.h> |
| 7 | #include <sys/poll.h> |
| 8 | #include <sys/types.h> |
| 9 | #include <sys/stat.h> |
| 10 | #include <sys/wait.h> |
| 11 | #include <sys/mman.h> |
| 12 | #include <netinet/in.h> |
| 13 | #include <arpa/inet.h> |
| 14 | #include <netdb.h> |
| 15 | |
| 16 | #include "fio.h" |
| 17 | #include "server.h" |
| 18 | #include "crc/crc32.h" |
| 19 | #include "flist.h" |
| 20 | |
| 21 | struct fio_client { |
| 22 | struct flist_head list; |
| 23 | struct sockaddr_in addr; |
| 24 | char *hostname; |
| 25 | int fd; |
| 26 | }; |
| 27 | |
| 28 | static FLIST_HEAD(client_list); |
| 29 | |
| 30 | static struct fio_client *find_client_by_fd(int fd) |
| 31 | { |
| 32 | struct fio_client *client; |
| 33 | struct flist_head *entry; |
| 34 | |
| 35 | flist_for_each(entry, &client_list) { |
| 36 | client = flist_entry(entry, struct fio_client, list); |
| 37 | |
| 38 | if (client->fd == fd) |
| 39 | return client; |
| 40 | } |
| 41 | |
| 42 | return NULL; |
| 43 | } |
| 44 | |
| 45 | #if 0 |
| 46 | static struct fio_client *find_client_by_name(const char *name) |
| 47 | { |
| 48 | struct fio_client *client; |
| 49 | struct flist_head *entry; |
| 50 | |
| 51 | flist_for_each(entry, &client_list) { |
| 52 | client = flist_entry(entry, struct fio_client, list); |
| 53 | |
| 54 | if (!strcmp(name, client->hostname)) |
| 55 | return client; |
| 56 | } |
| 57 | |
| 58 | return NULL; |
| 59 | } |
| 60 | #endif |
| 61 | |
| 62 | static void remove_client(struct fio_client *client) |
| 63 | { |
| 64 | dprint(FD_NET, "removed client <%s>\n", client->hostname); |
| 65 | flist_del(&client->list); |
| 66 | nr_clients--; |
| 67 | free(client->hostname); |
| 68 | free(client); |
| 69 | } |
| 70 | |
| 71 | void fio_client_add(const char *hostname) |
| 72 | { |
| 73 | struct fio_client *client; |
| 74 | |
| 75 | dprint(FD_NET, "added client <%s>\n", hostname); |
| 76 | client = malloc(sizeof(*client)); |
| 77 | memset(client, 0, sizeof(*client)); |
| 78 | client->hostname = strdup(hostname); |
| 79 | client->fd = -1; |
| 80 | flist_add(&client->list, &client_list); |
| 81 | nr_clients++; |
| 82 | } |
| 83 | |
| 84 | static int fio_client_connect(struct fio_client *client) |
| 85 | { |
| 86 | int fd; |
| 87 | |
| 88 | dprint(FD_NET, "connect to host %s\n", client->hostname); |
| 89 | |
| 90 | memset(&client->addr, 0, sizeof(client->addr)); |
| 91 | client->addr.sin_family = AF_INET; |
| 92 | client->addr.sin_port = htons(fio_net_port); |
| 93 | |
| 94 | if (inet_aton(client->hostname, &client->addr.sin_addr) != 1) { |
| 95 | struct hostent *hent; |
| 96 | |
| 97 | hent = gethostbyname(client->hostname); |
| 98 | if (!hent) { |
| 99 | log_err("fio: gethostbyname: %s\n", strerror(errno)); |
| 100 | return 1; |
| 101 | } |
| 102 | |
| 103 | memcpy(&client->addr.sin_addr, hent->h_addr, 4); |
| 104 | } |
| 105 | |
| 106 | fd = socket(AF_INET, SOCK_STREAM, 0); |
| 107 | if (fd < 0) { |
| 108 | log_err("fio: socket: %s\n", strerror(errno)); |
| 109 | return 1; |
| 110 | } |
| 111 | |
| 112 | if (connect(fd, (struct sockaddr *) &client->addr, sizeof(client->addr)) < 0) { |
| 113 | log_err("fio: connect: %s\n", strerror(errno)); |
| 114 | log_err("fio: failed to connect to %s\n", client->hostname); |
| 115 | return 1; |
| 116 | } |
| 117 | |
| 118 | client->fd = fd; |
| 119 | return 0; |
| 120 | } |
| 121 | |
| 122 | void fio_clients_terminate(void) |
| 123 | { |
| 124 | struct flist_head *entry; |
| 125 | struct fio_client *client; |
| 126 | |
| 127 | flist_for_each(entry, &client_list) { |
| 128 | client = flist_entry(entry, struct fio_client, list); |
| 129 | |
| 130 | fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_QUIT, 0); |
| 131 | } |
| 132 | } |
| 133 | |
| 134 | static void sig_int(int sig) |
| 135 | { |
| 136 | fio_clients_terminate(); |
| 137 | } |
| 138 | |
| 139 | static void client_signal_handler(void) |
| 140 | { |
| 141 | struct sigaction act; |
| 142 | |
| 143 | memset(&act, 0, sizeof(act)); |
| 144 | act.sa_handler = sig_int; |
| 145 | act.sa_flags = SA_RESTART; |
| 146 | sigaction(SIGINT, &act, NULL); |
| 147 | |
| 148 | memset(&act, 0, sizeof(act)); |
| 149 | act.sa_handler = sig_int; |
| 150 | act.sa_flags = SA_RESTART; |
| 151 | sigaction(SIGTERM, &act, NULL); |
| 152 | } |
| 153 | |
| 154 | int fio_clients_connect(void) |
| 155 | { |
| 156 | struct fio_client *client; |
| 157 | struct flist_head *entry, *tmp; |
| 158 | int ret; |
| 159 | |
| 160 | client_signal_handler(); |
| 161 | |
| 162 | flist_for_each_safe(entry, tmp, &client_list) { |
| 163 | client = flist_entry(entry, struct fio_client, list); |
| 164 | |
| 165 | ret = fio_client_connect(client); |
| 166 | if (ret) |
| 167 | remove_client(client); |
| 168 | } |
| 169 | |
| 170 | return !nr_clients; |
| 171 | } |
| 172 | |
| 173 | static int send_file_buf(struct fio_client *client, char *buf, off_t size) |
| 174 | { |
| 175 | return fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, size); |
| 176 | } |
| 177 | |
| 178 | /* |
| 179 | * Send file contents to server backend. We could use sendfile(), but to remain |
| 180 | * more portable lets just read/write the darn thing. |
| 181 | */ |
| 182 | static int fio_client_send_ini(struct fio_client *client, const char *filename) |
| 183 | { |
| 184 | struct stat sb; |
| 185 | char *p, *buf; |
| 186 | off_t len; |
| 187 | int fd, ret; |
| 188 | |
| 189 | dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname); |
| 190 | |
| 191 | fd = open(filename, O_RDONLY); |
| 192 | if (fd < 0) { |
| 193 | log_err("fio: job file open: %s\n", strerror(errno)); |
| 194 | return 1; |
| 195 | } |
| 196 | |
| 197 | if (fstat(fd, &sb) < 0) { |
| 198 | log_err("fio: job file stat: %s\n", strerror(errno)); |
| 199 | return 1; |
| 200 | } |
| 201 | |
| 202 | buf = malloc(sb.st_size); |
| 203 | |
| 204 | len = sb.st_size; |
| 205 | p = buf; |
| 206 | do { |
| 207 | ret = read(fd, p, len); |
| 208 | if (ret > 0) { |
| 209 | len -= ret; |
| 210 | if (!len) |
| 211 | break; |
| 212 | p += ret; |
| 213 | continue; |
| 214 | } else if (!ret) |
| 215 | break; |
| 216 | else if (errno == EAGAIN || errno == EINTR) |
| 217 | continue; |
| 218 | } while (1); |
| 219 | |
| 220 | ret = send_file_buf(client, buf, sb.st_size); |
| 221 | free(buf); |
| 222 | return ret; |
| 223 | } |
| 224 | |
| 225 | int fio_clients_send_ini(const char *filename) |
| 226 | { |
| 227 | struct fio_client *client; |
| 228 | struct flist_head *entry, *tmp; |
| 229 | |
| 230 | flist_for_each_safe(entry, tmp, &client_list) { |
| 231 | client = flist_entry(entry, struct fio_client, list); |
| 232 | |
| 233 | if (fio_client_send_ini(client, filename)) |
| 234 | remove_client(client); |
| 235 | } |
| 236 | |
| 237 | return !nr_clients; |
| 238 | } |
| 239 | |
| 240 | static void convert_io_stat(struct io_stat *dst, struct io_stat *src) |
| 241 | { |
| 242 | dst->max_val = le64_to_cpu(src->max_val); |
| 243 | dst->min_val = le64_to_cpu(src->min_val); |
| 244 | dst->samples = le64_to_cpu(src->samples); |
| 245 | /* FIXME */ |
| 246 | dst->mean = __le64_to_cpu(src->mean); |
| 247 | dst->S = __le64_to_cpu(src->S); |
| 248 | } |
| 249 | |
| 250 | static void convert_ts(struct thread_stat *dst, struct thread_stat *src) |
| 251 | { |
| 252 | int i, j; |
| 253 | |
| 254 | dst->error = le32_to_cpu(src->error); |
| 255 | dst->groupid = le32_to_cpu(src->groupid); |
| 256 | dst->pid = le32_to_cpu(src->pid); |
| 257 | dst->members = le32_to_cpu(src->members); |
| 258 | |
| 259 | for (i = 0; i < 2; i++) { |
| 260 | convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]); |
| 261 | convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]); |
| 262 | convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]); |
| 263 | convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]); |
| 264 | } |
| 265 | |
| 266 | dst->usr_time = le64_to_cpu(src->usr_time); |
| 267 | dst->sys_time = le64_to_cpu(src->sys_time); |
| 268 | dst->ctx = le64_to_cpu(src->ctx); |
| 269 | dst->minf = le64_to_cpu(src->minf); |
| 270 | dst->majf = le64_to_cpu(src->majf); |
| 271 | dst->clat_percentiles = le64_to_cpu(src->clat_percentiles); |
| 272 | dst->percentile_list = NULL; |
| 273 | |
| 274 | for (i = 0; i < FIO_IO_U_MAP_NR; i++) { |
| 275 | dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]); |
| 276 | dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]); |
| 277 | dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]); |
| 278 | } |
| 279 | |
| 280 | for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) { |
| 281 | dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]); |
| 282 | dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]); |
| 283 | } |
| 284 | |
| 285 | for (i = 0; i < 2; i++) |
| 286 | for (j = 0; j < FIO_IO_U_PLAT_NR; j++) |
| 287 | dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]); |
| 288 | |
| 289 | for (i = 0; i < 3; i++) { |
| 290 | dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]); |
| 291 | dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]); |
| 292 | } |
| 293 | |
| 294 | dst->total_submit = le64_to_cpu(src->total_submit); |
| 295 | dst->total_complete = le64_to_cpu(src->total_complete); |
| 296 | |
| 297 | for (i = 0; i < 2; i++) { |
| 298 | dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]); |
| 299 | dst->runtime[i] = le64_to_cpu(src->runtime[i]); |
| 300 | } |
| 301 | |
| 302 | dst->total_run_time = le64_to_cpu(src->total_run_time); |
| 303 | dst->continue_on_error = le16_to_cpu(src->continue_on_error); |
| 304 | dst->total_err_count = le64_to_cpu(src->total_err_count); |
| 305 | dst->first_error = le32_to_cpu(src->first_error); |
| 306 | dst->kb_base = le32_to_cpu(src->kb_base); |
| 307 | } |
| 308 | |
| 309 | static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src) |
| 310 | { |
| 311 | int i; |
| 312 | |
| 313 | for (i = 0; i < 2; i++) { |
| 314 | dst->max_run[i] = le64_to_cpu(src->max_run[i]); |
| 315 | dst->min_run[i] = le64_to_cpu(src->min_run[i]); |
| 316 | dst->max_bw[i] = le64_to_cpu(src->max_bw[i]); |
| 317 | dst->min_bw[i] = le64_to_cpu(src->min_bw[i]); |
| 318 | dst->io_kb[i] = le64_to_cpu(src->io_kb[i]); |
| 319 | dst->agg[i] = le64_to_cpu(src->agg[i]); |
| 320 | } |
| 321 | |
| 322 | dst->kb_base = le32_to_cpu(src->kb_base); |
| 323 | dst->groupid = le32_to_cpu(src->groupid); |
| 324 | } |
| 325 | |
| 326 | static void handle_ts(struct fio_net_cmd *cmd) |
| 327 | { |
| 328 | struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload; |
| 329 | |
| 330 | convert_ts(&p->ts, &p->ts); |
| 331 | convert_gs(&p->rs, &p->rs); |
| 332 | |
| 333 | show_thread_status(&p->ts, &p->rs); |
| 334 | } |
| 335 | |
| 336 | static void handle_gs(struct fio_net_cmd *cmd) |
| 337 | { |
| 338 | struct group_run_stats *gs = (struct group_run_stats *) cmd->payload; |
| 339 | |
| 340 | convert_gs(gs, gs); |
| 341 | show_group_stats(gs); |
| 342 | } |
| 343 | |
| 344 | static void handle_eta(struct fio_net_cmd *cmd) |
| 345 | { |
| 346 | struct jobs_eta *je = (struct jobs_eta *) cmd->payload; |
| 347 | int i; |
| 348 | |
| 349 | je->nr_running = le32_to_cpu(je->nr_running); |
| 350 | je->nr_ramp = le32_to_cpu(je->nr_ramp); |
| 351 | je->nr_pending = le32_to_cpu(je->nr_pending); |
| 352 | je->files_open = le32_to_cpu(je->files_open); |
| 353 | je->m_rate = le32_to_cpu(je->m_rate); |
| 354 | je->t_rate = le32_to_cpu(je->t_rate); |
| 355 | je->m_iops = le32_to_cpu(je->m_iops); |
| 356 | je->t_iops = le32_to_cpu(je->t_iops); |
| 357 | |
| 358 | for (i = 0; i < 2; i++) { |
| 359 | je->rate[i] = le32_to_cpu(je->rate[i]); |
| 360 | je->iops[i] = le32_to_cpu(je->iops[i]); |
| 361 | } |
| 362 | |
| 363 | je->elapsed_sec = le32_to_cpu(je->nr_running); |
| 364 | je->eta_sec = le64_to_cpu(je->eta_sec); |
| 365 | |
| 366 | display_thread_status(je); |
| 367 | } |
| 368 | |
| 369 | static void handle_probe(struct fio_net_cmd *cmd) |
| 370 | { |
| 371 | struct cmd_probe_pdu *probe = (struct cmd_probe_pdu *) cmd->payload; |
| 372 | |
| 373 | log_info("Probe: %s: %u.%u.%u\n", probe->hostname, probe->fio_major, |
| 374 | probe->fio_minor, probe->fio_patch); |
| 375 | } |
| 376 | |
| 377 | static int handle_client(struct fio_client *client) |
| 378 | { |
| 379 | struct fio_net_cmd *cmd; |
| 380 | int done = 0; |
| 381 | |
| 382 | while ((cmd = fio_net_recv_cmd(client->fd)) != NULL) { |
| 383 | dprint(FD_NET, "%s: got cmd op %d\n", client->hostname, |
| 384 | cmd->opcode); |
| 385 | |
| 386 | switch (cmd->opcode) { |
| 387 | case FIO_NET_CMD_QUIT: |
| 388 | remove_client(client); |
| 389 | free(cmd); |
| 390 | done = 1; |
| 391 | break; |
| 392 | case FIO_NET_CMD_TEXT: |
| 393 | fwrite(cmd->payload, cmd->pdu_len, 1, stdout); |
| 394 | fflush(stdout); |
| 395 | free(cmd); |
| 396 | break; |
| 397 | case FIO_NET_CMD_TS: |
| 398 | handle_ts(cmd); |
| 399 | free(cmd); |
| 400 | break; |
| 401 | case FIO_NET_CMD_GS: |
| 402 | handle_gs(cmd); |
| 403 | free(cmd); |
| 404 | break; |
| 405 | case FIO_NET_CMD_ETA: |
| 406 | handle_eta(cmd); |
| 407 | free(cmd); |
| 408 | break; |
| 409 | case FIO_NET_CMD_PROBE: |
| 410 | handle_probe(cmd); |
| 411 | free(cmd); |
| 412 | break; |
| 413 | default: |
| 414 | log_err("fio: unknown client op: %d\n", cmd->opcode); |
| 415 | free(cmd); |
| 416 | break; |
| 417 | } |
| 418 | |
| 419 | if (done) |
| 420 | break; |
| 421 | } |
| 422 | |
| 423 | return 0; |
| 424 | } |
| 425 | |
| 426 | int fio_handle_clients(void) |
| 427 | { |
| 428 | struct fio_client *client; |
| 429 | struct flist_head *entry; |
| 430 | struct pollfd *pfds; |
| 431 | int i, ret = 0; |
| 432 | |
| 433 | pfds = malloc(nr_clients * sizeof(struct pollfd)); |
| 434 | |
| 435 | while (!exit_backend && nr_clients) { |
| 436 | i = 0; |
| 437 | flist_for_each(entry, &client_list) { |
| 438 | client = flist_entry(entry, struct fio_client, list); |
| 439 | |
| 440 | pfds[i].fd = client->fd; |
| 441 | pfds[i].events = POLLIN; |
| 442 | i++; |
| 443 | } |
| 444 | |
| 445 | assert(i == nr_clients); |
| 446 | |
| 447 | ret = poll(pfds, nr_clients, 100); |
| 448 | if (ret < 0) { |
| 449 | if (errno == EINTR) |
| 450 | continue; |
| 451 | log_err("fio: poll clients: %s\n", strerror(errno)); |
| 452 | break; |
| 453 | } else if (!ret) |
| 454 | continue; |
| 455 | |
| 456 | for (i = 0; i < nr_clients; i++) { |
| 457 | if (!(pfds[i].revents & POLLIN)) |
| 458 | continue; |
| 459 | |
| 460 | client = find_client_by_fd(pfds[i].fd); |
| 461 | if (!client) { |
| 462 | log_err("fio: unknown client\n"); |
| 463 | continue; |
| 464 | } |
| 465 | handle_client(client); |
| 466 | } |
| 467 | } |
| 468 | |
| 469 | free(pfds); |
| 470 | return 0; |
| 471 | } |