Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 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" |
Jens Axboe | b66570d | 2011-10-01 11:11:35 -0600 | [diff] [blame] | 19 | #include "flist.h" |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 20 | |
Jens Axboe | b66570d | 2011-10-01 11:11:35 -0600 | [diff] [blame] | 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); |
Jens Axboe | b66570d | 2011-10-01 11:11:35 -0600 | [diff] [blame] | 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 | |
Jens Axboe | a37f69b | 2011-10-01 12:24:21 -0600 | [diff] [blame] | 45 | #if 0 |
Jens Axboe | b66570d | 2011-10-01 11:11:35 -0600 | [diff] [blame] | 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 | } |
Jens Axboe | a37f69b | 2011-10-01 12:24:21 -0600 | [diff] [blame] | 60 | #endif |
Jens Axboe | b66570d | 2011-10-01 11:11:35 -0600 | [diff] [blame] | 61 | |
| 62 | static void remove_client(struct fio_client *client) |
| 63 | { |
Jens Axboe | 46c48f1 | 2011-10-01 12:50:51 -0600 | [diff] [blame] | 64 | dprint(FD_NET, "removed client <%s>\n", client->hostname); |
Jens Axboe | b66570d | 2011-10-01 11:11:35 -0600 | [diff] [blame] | 65 | flist_del(&client->list); |
| 66 | nr_clients--; |
| 67 | free(client->hostname); |
| 68 | free(client); |
| 69 | } |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 70 | |
Jens Axboe | a37f69b | 2011-10-01 12:24:21 -0600 | [diff] [blame] | 71 | void fio_client_add(const char *hostname) |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 72 | { |
Jens Axboe | b66570d | 2011-10-01 11:11:35 -0600 | [diff] [blame] | 73 | struct fio_client *client; |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 74 | |
Jens Axboe | 46c48f1 | 2011-10-01 12:50:51 -0600 | [diff] [blame] | 75 | dprint(FD_NET, "added client <%s>\n", hostname); |
Jens Axboe | b66570d | 2011-10-01 11:11:35 -0600 | [diff] [blame] | 76 | client = malloc(sizeof(*client)); |
Jens Axboe | a37f69b | 2011-10-01 12:24:21 -0600 | [diff] [blame] | 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; |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 87 | |
Jens Axboe | 46c48f1 | 2011-10-01 12:50:51 -0600 | [diff] [blame] | 88 | dprint(FD_NET, "connect to host %s\n", client->hostname); |
| 89 | |
Jens Axboe | b66570d | 2011-10-01 11:11:35 -0600 | [diff] [blame] | 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 | |
Jens Axboe | a37f69b | 2011-10-01 12:24:21 -0600 | [diff] [blame] | 94 | if (inet_aton(client->hostname, &client->addr.sin_addr) != 1) { |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 95 | struct hostent *hent; |
| 96 | |
Jens Axboe | a37f69b | 2011-10-01 12:24:21 -0600 | [diff] [blame] | 97 | hent = gethostbyname(client->hostname); |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 98 | if (!hent) { |
| 99 | log_err("fio: gethostbyname: %s\n", strerror(errno)); |
| 100 | return 1; |
| 101 | } |
| 102 | |
Jens Axboe | b66570d | 2011-10-01 11:11:35 -0600 | [diff] [blame] | 103 | memcpy(&client->addr.sin_addr, hent->h_addr, 4); |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 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 | |
Jens Axboe | b66570d | 2011-10-01 11:11:35 -0600 | [diff] [blame] | 112 | if (connect(fd, (struct sockaddr *) &client->addr, sizeof(client->addr)) < 0) { |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 113 | log_err("fio: connect: %s\n", strerror(errno)); |
| 114 | return 1; |
| 115 | } |
| 116 | |
Jens Axboe | b66570d | 2011-10-01 11:11:35 -0600 | [diff] [blame] | 117 | client->fd = fd; |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 118 | return 0; |
| 119 | } |
| 120 | |
Jens Axboe | a37f69b | 2011-10-01 12:24:21 -0600 | [diff] [blame] | 121 | int fio_clients_connect(void) |
| 122 | { |
| 123 | struct fio_client *client; |
| 124 | struct flist_head *entry, *tmp; |
| 125 | int ret; |
| 126 | |
| 127 | flist_for_each_safe(entry, tmp, &client_list) { |
| 128 | client = flist_entry(entry, struct fio_client, list); |
| 129 | |
| 130 | ret = fio_client_connect(client); |
| 131 | if (ret) |
| 132 | remove_client(client); |
| 133 | } |
| 134 | |
| 135 | return !nr_clients; |
| 136 | } |
| 137 | |
Jens Axboe | b66570d | 2011-10-01 11:11:35 -0600 | [diff] [blame] | 138 | static int send_file_buf(struct fio_client *client, char *buf, off_t size) |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 139 | { |
Jens Axboe | b66570d | 2011-10-01 11:11:35 -0600 | [diff] [blame] | 140 | return fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, size); |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 141 | } |
| 142 | |
| 143 | /* |
| 144 | * Send file contents to server backend. We could use sendfile(), but to remain |
| 145 | * more portable lets just read/write the darn thing. |
| 146 | */ |
Jens Axboe | a37f69b | 2011-10-01 12:24:21 -0600 | [diff] [blame] | 147 | static int fio_client_send_ini(struct fio_client *client, const char *filename) |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 148 | { |
| 149 | struct stat sb; |
| 150 | char *p, *buf; |
| 151 | off_t len; |
| 152 | int fd, ret; |
| 153 | |
Jens Axboe | 46c48f1 | 2011-10-01 12:50:51 -0600 | [diff] [blame] | 154 | dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname); |
| 155 | |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 156 | fd = open(filename, O_RDONLY); |
| 157 | if (fd < 0) { |
| 158 | log_err("fio: job file open: %s\n", strerror(errno)); |
| 159 | return 1; |
| 160 | } |
| 161 | |
| 162 | if (fstat(fd, &sb) < 0) { |
| 163 | log_err("fio: job file stat: %s\n", strerror(errno)); |
| 164 | return 1; |
| 165 | } |
| 166 | |
| 167 | buf = malloc(sb.st_size); |
| 168 | |
| 169 | len = sb.st_size; |
| 170 | p = buf; |
| 171 | do { |
| 172 | ret = read(fd, p, len); |
| 173 | if (ret > 0) { |
| 174 | len -= ret; |
| 175 | if (!len) |
| 176 | break; |
| 177 | p += ret; |
| 178 | continue; |
| 179 | } else if (!ret) |
| 180 | break; |
| 181 | else if (errno == EAGAIN || errno == EINTR) |
| 182 | continue; |
| 183 | } while (1); |
| 184 | |
Jens Axboe | b66570d | 2011-10-01 11:11:35 -0600 | [diff] [blame] | 185 | ret = send_file_buf(client, buf, sb.st_size); |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 186 | free(buf); |
| 187 | return ret; |
| 188 | } |
Jens Axboe | 37db14f | 2011-09-30 17:00:42 -0600 | [diff] [blame] | 189 | |
Jens Axboe | a37f69b | 2011-10-01 12:24:21 -0600 | [diff] [blame] | 190 | int fio_clients_send_ini(const char *filename) |
| 191 | { |
| 192 | struct fio_client *client; |
| 193 | struct flist_head *entry, *tmp; |
| 194 | |
| 195 | flist_for_each_safe(entry, tmp, &client_list) { |
| 196 | client = flist_entry(entry, struct fio_client, list); |
| 197 | |
| 198 | if (fio_client_send_ini(client, filename)) |
| 199 | remove_client(client); |
| 200 | } |
| 201 | |
| 202 | return !nr_clients; |
| 203 | } |
| 204 | |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 205 | static void convert_io_stat(struct io_stat *dst, struct io_stat *src) |
| 206 | { |
| 207 | dst->max_val = le64_to_cpu(src->max_val); |
| 208 | dst->min_val = le64_to_cpu(src->min_val); |
| 209 | dst->samples = le64_to_cpu(src->samples); |
| 210 | /* FIXME */ |
Jens Axboe | ddcc0b6 | 2011-10-03 14:45:27 +0200 | [diff] [blame] | 211 | dst->mean = __le64_to_cpu(src->mean); |
| 212 | dst->S = __le64_to_cpu(src->S); |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 213 | } |
| 214 | |
| 215 | static void convert_ts(struct thread_stat *dst, struct thread_stat *src) |
| 216 | { |
| 217 | int i, j; |
| 218 | |
| 219 | dst->error = le32_to_cpu(src->error); |
| 220 | dst->groupid = le32_to_cpu(src->groupid); |
| 221 | dst->pid = le32_to_cpu(src->pid); |
| 222 | dst->members = le32_to_cpu(src->members); |
| 223 | |
| 224 | for (i = 0; i < 2; i++) { |
| 225 | convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]); |
| 226 | convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]); |
| 227 | convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]); |
| 228 | convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]); |
| 229 | } |
| 230 | |
| 231 | dst->usr_time = le64_to_cpu(src->usr_time); |
| 232 | dst->sys_time = le64_to_cpu(src->sys_time); |
| 233 | dst->ctx = le64_to_cpu(src->ctx); |
| 234 | dst->minf = le64_to_cpu(src->minf); |
| 235 | dst->majf = le64_to_cpu(src->majf); |
| 236 | dst->clat_percentiles = le64_to_cpu(src->clat_percentiles); |
| 237 | dst->percentile_list = NULL; |
| 238 | |
| 239 | for (i = 0; i < FIO_IO_U_MAP_NR; i++) { |
| 240 | dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]); |
| 241 | dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]); |
| 242 | dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]); |
| 243 | } |
| 244 | |
| 245 | for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) { |
| 246 | dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]); |
| 247 | dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]); |
| 248 | } |
| 249 | |
| 250 | for (i = 0; i < 2; i++) |
| 251 | for (j = 0; j < FIO_IO_U_PLAT_NR; j++) |
| 252 | dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]); |
| 253 | |
| 254 | for (i = 0; i < 3; i++) { |
| 255 | dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]); |
| 256 | dst->short_io_u[i] = le64_to_cpu(src->total_io_u[i]); |
| 257 | } |
| 258 | |
| 259 | dst->total_submit = le64_to_cpu(src->total_submit); |
| 260 | dst->total_complete = le64_to_cpu(src->total_complete); |
| 261 | |
| 262 | for (i = 0; i < 2; i++) { |
| 263 | dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]); |
| 264 | dst->runtime[i] = le64_to_cpu(src->runtime[i]); |
| 265 | } |
| 266 | |
| 267 | dst->total_run_time = le64_to_cpu(src->total_run_time); |
| 268 | dst->continue_on_error = le16_to_cpu(src->continue_on_error); |
| 269 | dst->total_err_count = le64_to_cpu(src->total_err_count); |
Jens Axboe | ddcc0b6 | 2011-10-03 14:45:27 +0200 | [diff] [blame] | 270 | dst->first_error = le32_to_cpu(src->first_error); |
| 271 | dst->kb_base = le32_to_cpu(src->kb_base); |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 272 | } |
| 273 | |
| 274 | static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src) |
| 275 | { |
| 276 | int i; |
| 277 | |
| 278 | for (i = 0; i < 2; i++) { |
| 279 | dst->max_run[i] = le64_to_cpu(src->max_run[i]); |
| 280 | dst->min_run[i] = le64_to_cpu(src->min_run[i]); |
| 281 | dst->max_bw[i] = le64_to_cpu(src->max_bw[i]); |
| 282 | dst->min_bw[i] = le64_to_cpu(src->min_bw[i]); |
| 283 | dst->io_kb[i] = le64_to_cpu(src->io_kb[i]); |
| 284 | dst->agg[i] = le64_to_cpu(src->agg[i]); |
| 285 | } |
| 286 | |
| 287 | dst->kb_base = le32_to_cpu(src->kb_base); |
| 288 | dst->groupid = le32_to_cpu(src->groupid); |
| 289 | } |
| 290 | |
| 291 | static void handle_ts(struct fio_net_cmd *cmd) |
| 292 | { |
| 293 | struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload; |
| 294 | |
| 295 | convert_ts(&p->ts, &p->ts); |
| 296 | convert_gs(&p->rs, &p->rs); |
| 297 | |
| 298 | show_thread_status(&p->ts, &p->rs); |
| 299 | } |
| 300 | |
| 301 | static void handle_gs(struct fio_net_cmd *cmd) |
| 302 | { |
| 303 | struct group_run_stats *gs = (struct group_run_stats *) cmd->payload; |
| 304 | |
| 305 | convert_gs(gs, gs); |
| 306 | show_group_stats(gs); |
| 307 | } |
| 308 | |
Jens Axboe | cf451d1 | 2011-10-03 16:48:30 +0200 | [diff] [blame^] | 309 | static void handle_eta(struct fio_net_cmd *cmd) |
| 310 | { |
| 311 | struct jobs_eta *je = (struct jobs_eta *) cmd->payload; |
| 312 | int i; |
| 313 | |
| 314 | je->nr_running = le32_to_cpu(je->nr_running); |
| 315 | je->nr_ramp = le32_to_cpu(je->nr_ramp); |
| 316 | je->nr_pending = le32_to_cpu(je->nr_pending); |
| 317 | je->files_open = le32_to_cpu(je->files_open); |
| 318 | je->m_rate = le32_to_cpu(je->m_rate); |
| 319 | je->t_rate = le32_to_cpu(je->t_rate); |
| 320 | je->m_iops = le32_to_cpu(je->m_iops); |
| 321 | je->t_iops = le32_to_cpu(je->t_iops); |
| 322 | |
| 323 | for (i = 0; i < 2; i++) { |
| 324 | je->rate[i] = le32_to_cpu(je->rate[i]); |
| 325 | je->iops[i] = le32_to_cpu(je->iops[i]); |
| 326 | } |
| 327 | |
| 328 | je->elapsed_sec = le32_to_cpu(je->nr_running); |
| 329 | je->eta_sec = le64_to_cpu(je->eta_sec); |
| 330 | |
| 331 | display_thread_status(je); |
| 332 | } |
| 333 | |
Jens Axboe | b66570d | 2011-10-01 11:11:35 -0600 | [diff] [blame] | 334 | static int handle_client(struct fio_client *client) |
Jens Axboe | 37db14f | 2011-09-30 17:00:42 -0600 | [diff] [blame] | 335 | { |
| 336 | struct fio_net_cmd *cmd; |
Jens Axboe | a450e49 | 2011-10-03 14:24:03 +0200 | [diff] [blame] | 337 | int done = 0; |
Jens Axboe | 37db14f | 2011-09-30 17:00:42 -0600 | [diff] [blame] | 338 | |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 339 | while ((cmd = fio_net_recv_cmd(client->fd)) != NULL) { |
Jens Axboe | 46c48f1 | 2011-10-01 12:50:51 -0600 | [diff] [blame] | 340 | dprint(FD_NET, "%s: got cmd op %d\n", client->hostname, |
| 341 | cmd->opcode); |
| 342 | |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 343 | switch (cmd->opcode) { |
| 344 | case FIO_NET_CMD_ACK: |
Jens Axboe | 37db14f | 2011-09-30 17:00:42 -0600 | [diff] [blame] | 345 | free(cmd); |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 346 | break; |
| 347 | case FIO_NET_CMD_QUIT: |
Jens Axboe | b66570d | 2011-10-01 11:11:35 -0600 | [diff] [blame] | 348 | remove_client(client); |
Jens Axboe | 437377e | 2011-10-01 08:31:30 -0600 | [diff] [blame] | 349 | free(cmd); |
Jens Axboe | a450e49 | 2011-10-03 14:24:03 +0200 | [diff] [blame] | 350 | done = 1; |
Jens Axboe | 437377e | 2011-10-01 08:31:30 -0600 | [diff] [blame] | 351 | break; |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 352 | case FIO_NET_CMD_TEXT: |
| 353 | fwrite(cmd->payload, cmd->pdu_len, 1, stdout); |
| 354 | fflush(stdout); |
Jens Axboe | 37db14f | 2011-09-30 17:00:42 -0600 | [diff] [blame] | 355 | free(cmd); |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 356 | break; |
| 357 | case FIO_NET_CMD_TS: |
| 358 | handle_ts(cmd); |
| 359 | free(cmd); |
| 360 | break; |
| 361 | case FIO_NET_CMD_GS: |
| 362 | handle_gs(cmd); |
| 363 | free(cmd); |
| 364 | break; |
Jens Axboe | cf451d1 | 2011-10-03 16:48:30 +0200 | [diff] [blame^] | 365 | case FIO_NET_CMD_ETA: |
| 366 | handle_eta(cmd); |
| 367 | free(cmd); |
| 368 | break; |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 369 | default: |
| 370 | log_err("fio: unknown client op: %d\n", cmd->opcode); |
| 371 | free(cmd); |
| 372 | break; |
Jens Axboe | 37db14f | 2011-09-30 17:00:42 -0600 | [diff] [blame] | 373 | } |
Jens Axboe | a450e49 | 2011-10-03 14:24:03 +0200 | [diff] [blame] | 374 | |
| 375 | if (done) |
| 376 | break; |
Jens Axboe | 37db14f | 2011-09-30 17:00:42 -0600 | [diff] [blame] | 377 | } |
| 378 | |
| 379 | return 0; |
| 380 | } |
Jens Axboe | b66570d | 2011-10-01 11:11:35 -0600 | [diff] [blame] | 381 | |
| 382 | int fio_handle_clients(void) |
| 383 | { |
| 384 | struct fio_client *client; |
| 385 | struct flist_head *entry; |
| 386 | struct pollfd *pfds; |
Jens Axboe | 82a4be1 | 2011-10-01 12:40:32 -0600 | [diff] [blame] | 387 | int i, ret = 0; |
Jens Axboe | b66570d | 2011-10-01 11:11:35 -0600 | [diff] [blame] | 388 | |
| 389 | pfds = malloc(nr_clients * sizeof(struct pollfd)); |
| 390 | |
Jens Axboe | b66570d | 2011-10-01 11:11:35 -0600 | [diff] [blame] | 391 | while (!exit_backend && nr_clients) { |
Jens Axboe | 82a4be1 | 2011-10-01 12:40:32 -0600 | [diff] [blame] | 392 | i = 0; |
| 393 | flist_for_each(entry, &client_list) { |
| 394 | client = flist_entry(entry, struct fio_client, list); |
| 395 | |
| 396 | pfds[i].fd = client->fd; |
| 397 | pfds[i].events = POLLIN; |
| 398 | i++; |
| 399 | } |
| 400 | |
| 401 | assert(i == nr_clients); |
| 402 | |
Jens Axboe | b66570d | 2011-10-01 11:11:35 -0600 | [diff] [blame] | 403 | ret = poll(pfds, nr_clients, 100); |
| 404 | if (ret < 0) { |
| 405 | if (errno == EINTR) |
| 406 | continue; |
| 407 | log_err("fio: poll clients: %s\n", strerror(errno)); |
| 408 | break; |
| 409 | } else if (!ret) |
| 410 | continue; |
| 411 | |
| 412 | for (i = 0; i < nr_clients; i++) { |
| 413 | if (!(pfds[i].revents & POLLIN)) |
| 414 | continue; |
| 415 | |
| 416 | client = find_client_by_fd(pfds[i].fd); |
| 417 | if (!client) { |
| 418 | log_err("fio: unknown client\n"); |
| 419 | continue; |
| 420 | } |
| 421 | handle_client(client); |
| 422 | } |
| 423 | } |
| 424 | |
| 425 | free(pfds); |
Jens Axboe | b66570d | 2011-10-01 11:11:35 -0600 | [diff] [blame] | 426 | return 0; |
| 427 | } |