Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 1 | /* |
| 2 | * FD polling functions for generic select() |
| 3 | * |
Willy Tarreau | f817e9f | 2014-01-10 16:58:45 +0100 | [diff] [blame] | 4 | * Copyright 2000-2014 Willy Tarreau <w@1wt.eu> |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License |
| 8 | * as published by the Free Software Foundation; either version |
| 9 | * 2 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | */ |
| 12 | |
| 13 | #include <unistd.h> |
| 14 | #include <sys/time.h> |
| 15 | #include <sys/types.h> |
| 16 | |
| 17 | #include <common/compat.h> |
| 18 | #include <common/config.h> |
Willy Tarreau | 0c303ee | 2008-07-07 00:09:58 +0200 | [diff] [blame] | 19 | #include <common/ticks.h> |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 20 | #include <common/time.h> |
| 21 | |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 22 | #include <types/global.h> |
| 23 | |
| 24 | #include <proto/fd.h> |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 25 | |
| 26 | |
Christopher Faulet | d4604ad | 2017-05-29 10:40:41 +0200 | [diff] [blame] | 27 | /* private data */ |
Willy Tarreau | 173d995 | 2018-01-26 21:48:23 +0100 | [diff] [blame] | 28 | static int maxfd; /* # of the highest fd + 1 */ |
Willy Tarreau | d51a507 | 2018-01-25 16:48:46 +0100 | [diff] [blame] | 29 | static unsigned int *fd_evts[2]; |
Christopher Faulet | d4604ad | 2017-05-29 10:40:41 +0200 | [diff] [blame] | 30 | static THREAD_LOCAL fd_set *tmp_evts[2]; |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 31 | |
Willy Tarreau | 4d31fb2 | 2012-11-11 16:53:50 +0100 | [diff] [blame] | 32 | /* Immediately remove the entry upon close() */ |
| 33 | REGPRM1 static void __fd_clo(int fd) |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 34 | { |
Willy Tarreau | d51a507 | 2018-01-25 16:48:46 +0100 | [diff] [blame] | 35 | hap_fd_clr(fd, fd_evts[DIR_RD]); |
| 36 | hap_fd_clr(fd, fd_evts[DIR_WR]); |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 37 | } |
| 38 | |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 39 | /* |
| 40 | * Select() poller |
| 41 | */ |
Willy Tarreau | 0c303ee | 2008-07-07 00:09:58 +0200 | [diff] [blame] | 42 | REGPRM2 static void _do_poll(struct poller *p, int exp) |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 43 | { |
| 44 | int status; |
| 45 | int fd, i; |
| 46 | struct timeval delta; |
Willy Tarreau | b0b37bc | 2008-06-23 14:00:57 +0200 | [diff] [blame] | 47 | int delta_ms; |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 48 | int fds; |
Willy Tarreau | 4d31fb2 | 2012-11-11 16:53:50 +0100 | [diff] [blame] | 49 | int updt_idx, en, eo; |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 50 | char count; |
Christopher Faulet | d4604ad | 2017-05-29 10:40:41 +0200 | [diff] [blame] | 51 | int readnotnull, writenotnull; |
Willy Tarreau | 173d995 | 2018-01-26 21:48:23 +0100 | [diff] [blame] | 52 | int old_maxfd, new_maxfd, max_add_fd; |
| 53 | |
| 54 | max_add_fd = -1; |
Christopher Faulet | d4604ad | 2017-05-29 10:40:41 +0200 | [diff] [blame] | 55 | |
Willy Tarreau | 4d31fb2 | 2012-11-11 16:53:50 +0100 | [diff] [blame] | 56 | /* first, scan the update list to find changes */ |
| 57 | for (updt_idx = 0; updt_idx < fd_nbupdt; updt_idx++) { |
| 58 | fd = fd_updt[updt_idx]; |
Willy Tarreau | 4d31fb2 | 2012-11-11 16:53:50 +0100 | [diff] [blame] | 59 | |
Willy Tarreau | d80cb4e | 2018-01-20 19:30:13 +0100 | [diff] [blame] | 60 | if (!fdtab[fd].owner) { |
| 61 | activity[tid].poll_drop++; |
Willy Tarreau | f817e9f | 2014-01-10 16:58:45 +0100 | [diff] [blame] | 62 | continue; |
Willy Tarreau | d80cb4e | 2018-01-20 19:30:13 +0100 | [diff] [blame] | 63 | } |
Willy Tarreau | 4d31fb2 | 2012-11-11 16:53:50 +0100 | [diff] [blame] | 64 | |
Christopher Faulet | 2a944ee | 2017-11-07 10:42:54 +0100 | [diff] [blame] | 65 | HA_SPIN_LOCK(FD_LOCK, &fdtab[fd].lock); |
Willy Tarreau | ebc78d7 | 2018-01-20 23:53:50 +0100 | [diff] [blame] | 66 | fdtab[fd].update_mask &= ~tid_bit; |
Willy Tarreau | 25002d2 | 2014-01-25 10:32:56 +0100 | [diff] [blame] | 67 | eo = fdtab[fd].state; |
| 68 | en = fd_compute_new_polled_status(eo); |
Christopher Faulet | d4604ad | 2017-05-29 10:40:41 +0200 | [diff] [blame] | 69 | fdtab[fd].state = en; |
Christopher Faulet | 2a944ee | 2017-11-07 10:42:54 +0100 | [diff] [blame] | 70 | HA_SPIN_UNLOCK(FD_LOCK, &fdtab[fd].lock); |
Willy Tarreau | f817e9f | 2014-01-10 16:58:45 +0100 | [diff] [blame] | 71 | |
| 72 | if ((eo ^ en) & FD_EV_POLLED_RW) { |
| 73 | /* poll status changed, update the lists */ |
Willy Tarreau | f817e9f | 2014-01-10 16:58:45 +0100 | [diff] [blame] | 74 | if ((eo & ~en) & FD_EV_POLLED_R) |
Willy Tarreau | d51a507 | 2018-01-25 16:48:46 +0100 | [diff] [blame] | 75 | hap_fd_clr(fd, fd_evts[DIR_RD]); |
Willy Tarreau | 173d995 | 2018-01-26 21:48:23 +0100 | [diff] [blame] | 76 | else if ((en & ~eo) & FD_EV_POLLED_R) { |
Willy Tarreau | d51a507 | 2018-01-25 16:48:46 +0100 | [diff] [blame] | 77 | hap_fd_set(fd, fd_evts[DIR_RD]); |
Willy Tarreau | 173d995 | 2018-01-26 21:48:23 +0100 | [diff] [blame] | 78 | if (fd > max_add_fd) |
| 79 | max_add_fd = fd; |
| 80 | } |
Willy Tarreau | f817e9f | 2014-01-10 16:58:45 +0100 | [diff] [blame] | 81 | |
| 82 | if ((eo & ~en) & FD_EV_POLLED_W) |
Willy Tarreau | d51a507 | 2018-01-25 16:48:46 +0100 | [diff] [blame] | 83 | hap_fd_clr(fd, fd_evts[DIR_WR]); |
Willy Tarreau | 173d995 | 2018-01-26 21:48:23 +0100 | [diff] [blame] | 84 | else if ((en & ~eo) & FD_EV_POLLED_W) { |
Willy Tarreau | d51a507 | 2018-01-25 16:48:46 +0100 | [diff] [blame] | 85 | hap_fd_set(fd, fd_evts[DIR_WR]); |
Willy Tarreau | 173d995 | 2018-01-26 21:48:23 +0100 | [diff] [blame] | 86 | if (fd > max_add_fd) |
| 87 | max_add_fd = fd; |
| 88 | } |
Willy Tarreau | f817e9f | 2014-01-10 16:58:45 +0100 | [diff] [blame] | 89 | } |
Willy Tarreau | 4d31fb2 | 2012-11-11 16:53:50 +0100 | [diff] [blame] | 90 | } |
Willy Tarreau | 173d995 | 2018-01-26 21:48:23 +0100 | [diff] [blame] | 91 | |
| 92 | /* maybe we added at least one fd larger than maxfd */ |
| 93 | for (old_maxfd = maxfd; old_maxfd <= max_add_fd; ) { |
| 94 | if (HA_ATOMIC_CAS(&maxfd, &old_maxfd, max_add_fd + 1)) |
| 95 | break; |
| 96 | } |
| 97 | |
| 98 | /* maxfd doesn't need to be precise but it needs to cover *all* active |
| 99 | * FDs. Thus we only shrink it if we have such an opportunity. The algo |
| 100 | * is simple : look for the previous used place, try to update maxfd to |
| 101 | * point to it, abort if maxfd changed in the mean time. |
| 102 | */ |
| 103 | old_maxfd = maxfd; |
| 104 | do { |
| 105 | new_maxfd = old_maxfd; |
| 106 | while (new_maxfd - 1 >= 0 && !fdtab[new_maxfd - 1].owner) |
| 107 | new_maxfd--; |
| 108 | if (new_maxfd >= old_maxfd) |
| 109 | break; |
| 110 | } while (!HA_ATOMIC_CAS(&maxfd, &old_maxfd, new_maxfd)); |
| 111 | |
Willy Tarreau | 4d31fb2 | 2012-11-11 16:53:50 +0100 | [diff] [blame] | 112 | fd_nbupdt = 0; |
| 113 | |
Christopher Faulet | d4604ad | 2017-05-29 10:40:41 +0200 | [diff] [blame] | 114 | /* let's restore fdset state */ |
| 115 | readnotnull = 0; writenotnull = 0; |
| 116 | for (i = 0; i < (maxfd + FD_SETSIZE - 1)/(8*sizeof(int)); i++) { |
| 117 | readnotnull |= (*(((int*)tmp_evts[DIR_RD])+i) = *(((int*)fd_evts[DIR_RD])+i)) != 0; |
| 118 | writenotnull |= (*(((int*)tmp_evts[DIR_WR])+i) = *(((int*)fd_evts[DIR_WR])+i)) != 0; |
| 119 | } |
Christopher Faulet | d4604ad | 2017-05-29 10:40:41 +0200 | [diff] [blame] | 120 | |
Willy Tarreau | 0c303ee | 2008-07-07 00:09:58 +0200 | [diff] [blame] | 121 | delta_ms = 0; |
| 122 | delta.tv_sec = 0; |
| 123 | delta.tv_usec = 0; |
| 124 | |
Willy Tarreau | 10146c9 | 2015-04-13 20:44:19 +0200 | [diff] [blame] | 125 | if (!exp) { |
| 126 | delta_ms = MAX_DELAY_MS; |
| 127 | delta.tv_sec = (MAX_DELAY_MS / 1000); |
| 128 | delta.tv_usec = (MAX_DELAY_MS % 1000) * 1000; |
| 129 | } |
| 130 | else if (!tick_is_expired(exp, now_ms)) { |
| 131 | delta_ms = TICKS_TO_MS(tick_remain(now_ms, exp)) + SCHEDULER_RESOLUTION; |
| 132 | if (delta_ms > MAX_DELAY_MS) |
| 133 | delta_ms = MAX_DELAY_MS; |
| 134 | delta.tv_sec = (delta_ms / 1000); |
| 135 | delta.tv_usec = (delta_ms % 1000) * 1000; |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 136 | } |
Willy Tarreau | d80cb4e | 2018-01-20 19:30:13 +0100 | [diff] [blame] | 137 | else |
| 138 | activity[tid].poll_exp++; |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 139 | |
Willy Tarreau | 45a1251 | 2011-09-10 16:56:42 +0200 | [diff] [blame] | 140 | gettimeofday(&before_poll, NULL); |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 141 | status = select(maxfd, |
Willy Tarreau | 28d8686 | 2007-04-08 17:42:27 +0200 | [diff] [blame] | 142 | readnotnull ? tmp_evts[DIR_RD] : NULL, |
| 143 | writenotnull ? tmp_evts[DIR_WR] : NULL, |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 144 | NULL, |
Willy Tarreau | b0b37bc | 2008-06-23 14:00:57 +0200 | [diff] [blame] | 145 | &delta); |
Christopher Faulet | d4604ad | 2017-05-29 10:40:41 +0200 | [diff] [blame] | 146 | |
Willy Tarreau | b0b37bc | 2008-06-23 14:00:57 +0200 | [diff] [blame] | 147 | tv_update_date(delta_ms, status); |
Willy Tarreau | 45a1251 | 2011-09-10 16:56:42 +0200 | [diff] [blame] | 148 | measure_idle(); |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 149 | |
| 150 | if (status <= 0) |
| 151 | return; |
| 152 | |
Willy Tarreau | 177e2b0 | 2008-07-15 00:36:31 +0200 | [diff] [blame] | 153 | for (fds = 0; (fds * BITS_PER_INT) < maxfd; fds++) { |
Willy Tarreau | 28d8686 | 2007-04-08 17:42:27 +0200 | [diff] [blame] | 154 | if ((((int *)(tmp_evts[DIR_RD]))[fds] | ((int *)(tmp_evts[DIR_WR]))[fds]) == 0) |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 155 | continue; |
| 156 | |
Willy Tarreau | 177e2b0 | 2008-07-15 00:36:31 +0200 | [diff] [blame] | 157 | for (count = BITS_PER_INT, fd = fds * BITS_PER_INT; count && fd < maxfd; count--, fd++) { |
Christopher Faulet | ab62f51 | 2017-08-30 10:34:36 +0200 | [diff] [blame] | 158 | unsigned int n = 0; |
| 159 | |
Willy Tarreau | d80cb4e | 2018-01-20 19:30:13 +0100 | [diff] [blame] | 160 | if (!fdtab[fd].owner) { |
| 161 | activity[tid].poll_dead++; |
| 162 | continue; |
| 163 | } |
| 164 | |
| 165 | if (!(fdtab[fd].thread_mask & tid_bit)) { |
| 166 | activity[tid].poll_skip++; |
Willy Tarreau | 076be25 | 2012-07-06 16:02:29 +0200 | [diff] [blame] | 167 | continue; |
Willy Tarreau | d80cb4e | 2018-01-20 19:30:13 +0100 | [diff] [blame] | 168 | } |
Willy Tarreau | 076be25 | 2012-07-06 16:02:29 +0200 | [diff] [blame] | 169 | |
Willy Tarreau | 076be25 | 2012-07-06 16:02:29 +0200 | [diff] [blame] | 170 | if (FD_ISSET(fd, tmp_evts[DIR_RD])) |
Christopher Faulet | ab62f51 | 2017-08-30 10:34:36 +0200 | [diff] [blame] | 171 | n |= FD_POLL_IN; |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 172 | |
Willy Tarreau | 076be25 | 2012-07-06 16:02:29 +0200 | [diff] [blame] | 173 | if (FD_ISSET(fd, tmp_evts[DIR_WR])) |
Christopher Faulet | ab62f51 | 2017-08-30 10:34:36 +0200 | [diff] [blame] | 174 | n |= FD_POLL_OUT; |
Willy Tarreau | 5be2f35 | 2014-11-19 19:43:05 +0100 | [diff] [blame] | 175 | |
Christopher Faulet | ab62f51 | 2017-08-30 10:34:36 +0200 | [diff] [blame] | 176 | fd_update_events(fd, n); |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 177 | } |
| 178 | } |
| 179 | } |
| 180 | |
Christopher Faulet | d4604ad | 2017-05-29 10:40:41 +0200 | [diff] [blame] | 181 | static int init_select_per_thread() |
| 182 | { |
| 183 | int fd_set_bytes; |
| 184 | |
| 185 | fd_set_bytes = sizeof(fd_set) * (global.maxsock + FD_SETSIZE - 1) / FD_SETSIZE; |
| 186 | if ((tmp_evts[DIR_RD] = (fd_set *)calloc(1, fd_set_bytes)) == NULL) |
| 187 | goto fail; |
| 188 | if ((tmp_evts[DIR_WR] = (fd_set *)calloc(1, fd_set_bytes)) == NULL) |
| 189 | goto fail; |
| 190 | return 1; |
| 191 | fail: |
| 192 | free(tmp_evts[DIR_RD]); |
| 193 | free(tmp_evts[DIR_WR]); |
| 194 | return 0; |
| 195 | } |
| 196 | |
| 197 | static void deinit_select_per_thread() |
| 198 | { |
Christopher Faulet | cd7879a | 2017-10-27 13:53:47 +0200 | [diff] [blame] | 199 | free(tmp_evts[DIR_WR]); tmp_evts[DIR_WR] = NULL; |
| 200 | free(tmp_evts[DIR_RD]); tmp_evts[DIR_RD] = NULL; |
Christopher Faulet | d4604ad | 2017-05-29 10:40:41 +0200 | [diff] [blame] | 201 | } |
| 202 | |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 203 | /* |
Willy Tarreau | e54e917 | 2007-04-09 09:23:31 +0200 | [diff] [blame] | 204 | * Initialization of the select() poller. |
| 205 | * Returns 0 in case of failure, non-zero in case of success. If it fails, it |
| 206 | * disables the poller by setting its pref to 0. |
| 207 | */ |
Willy Tarreau | ef1d1f8 | 2007-04-16 00:25:25 +0200 | [diff] [blame] | 208 | REGPRM1 static int _do_init(struct poller *p) |
Willy Tarreau | e54e917 | 2007-04-09 09:23:31 +0200 | [diff] [blame] | 209 | { |
Christopher Faulet | d4604ad | 2017-05-29 10:40:41 +0200 | [diff] [blame] | 210 | __label__ fail_swevt, fail_srevt, fail_revt; |
Willy Tarreau | e54e917 | 2007-04-09 09:23:31 +0200 | [diff] [blame] | 211 | int fd_set_bytes; |
| 212 | |
| 213 | p->private = NULL; |
Willy Tarreau | 3fa87b1 | 2013-03-31 14:41:15 +0200 | [diff] [blame] | 214 | |
| 215 | if (global.maxsock > FD_SETSIZE) |
| 216 | goto fail_revt; |
| 217 | |
Willy Tarreau | e54e917 | 2007-04-09 09:23:31 +0200 | [diff] [blame] | 218 | fd_set_bytes = sizeof(fd_set) * (global.maxsock + FD_SETSIZE - 1) / FD_SETSIZE; |
Willy Tarreau | e54e917 | 2007-04-09 09:23:31 +0200 | [diff] [blame] | 219 | |
Willy Tarreau | d51a507 | 2018-01-25 16:48:46 +0100 | [diff] [blame] | 220 | if ((fd_evts[DIR_RD] = calloc(1, fd_set_bytes)) == NULL) |
Willy Tarreau | e54e917 | 2007-04-09 09:23:31 +0200 | [diff] [blame] | 221 | goto fail_srevt; |
Willy Tarreau | d51a507 | 2018-01-25 16:48:46 +0100 | [diff] [blame] | 222 | if ((fd_evts[DIR_WR] = calloc(1, fd_set_bytes)) == NULL) |
Willy Tarreau | e54e917 | 2007-04-09 09:23:31 +0200 | [diff] [blame] | 223 | goto fail_swevt; |
| 224 | |
Christopher Faulet | cd7879a | 2017-10-27 13:53:47 +0200 | [diff] [blame] | 225 | hap_register_per_thread_init(init_select_per_thread); |
| 226 | hap_register_per_thread_deinit(deinit_select_per_thread); |
| 227 | |
Willy Tarreau | e54e917 | 2007-04-09 09:23:31 +0200 | [diff] [blame] | 228 | return 1; |
| 229 | |
| 230 | fail_swevt: |
| 231 | free(fd_evts[DIR_RD]); |
| 232 | fail_srevt: |
| 233 | free(tmp_evts[DIR_WR]); |
Willy Tarreau | e54e917 | 2007-04-09 09:23:31 +0200 | [diff] [blame] | 234 | free(tmp_evts[DIR_RD]); |
| 235 | fail_revt: |
| 236 | p->pref = 0; |
| 237 | return 0; |
| 238 | } |
| 239 | |
| 240 | /* |
| 241 | * Termination of the select() poller. |
| 242 | * Memory is released and the poller is marked as unselectable. |
| 243 | */ |
Willy Tarreau | ef1d1f8 | 2007-04-16 00:25:25 +0200 | [diff] [blame] | 244 | REGPRM1 static void _do_term(struct poller *p) |
Willy Tarreau | e54e917 | 2007-04-09 09:23:31 +0200 | [diff] [blame] | 245 | { |
Willy Tarreau | a534fea | 2008-08-03 12:19:50 +0200 | [diff] [blame] | 246 | free(fd_evts[DIR_WR]); |
| 247 | free(fd_evts[DIR_RD]); |
Willy Tarreau | e54e917 | 2007-04-09 09:23:31 +0200 | [diff] [blame] | 248 | p->private = NULL; |
| 249 | p->pref = 0; |
| 250 | } |
| 251 | |
| 252 | /* |
Willy Tarreau | 2ff7622 | 2007-04-09 19:29:56 +0200 | [diff] [blame] | 253 | * Check that the poller works. |
| 254 | * Returns 1 if OK, otherwise 0. |
| 255 | */ |
Willy Tarreau | ef1d1f8 | 2007-04-16 00:25:25 +0200 | [diff] [blame] | 256 | REGPRM1 static int _do_test(struct poller *p) |
Willy Tarreau | 2ff7622 | 2007-04-09 19:29:56 +0200 | [diff] [blame] | 257 | { |
Willy Tarreau | 3fa87b1 | 2013-03-31 14:41:15 +0200 | [diff] [blame] | 258 | if (global.maxsock > FD_SETSIZE) |
| 259 | return 0; |
| 260 | |
Willy Tarreau | 2ff7622 | 2007-04-09 19:29:56 +0200 | [diff] [blame] | 261 | return 1; |
| 262 | } |
| 263 | |
| 264 | /* |
Willy Tarreau | ef1d1f8 | 2007-04-16 00:25:25 +0200 | [diff] [blame] | 265 | * It is a constructor, which means that it will automatically be called before |
| 266 | * main(). This is GCC-specific but it works at least since 2.95. |
| 267 | * Special care must be taken so that it does not need any uninitialized data. |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 268 | */ |
Willy Tarreau | ef1d1f8 | 2007-04-16 00:25:25 +0200 | [diff] [blame] | 269 | __attribute__((constructor)) |
| 270 | static void _do_register(void) |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 271 | { |
Willy Tarreau | ef1d1f8 | 2007-04-16 00:25:25 +0200 | [diff] [blame] | 272 | struct poller *p; |
| 273 | |
| 274 | if (nbpollers >= MAX_POLLERS) |
| 275 | return; |
| 276 | p = &pollers[nbpollers++]; |
| 277 | |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 278 | p->name = "select"; |
| 279 | p->pref = 150; |
Willy Tarreau | 5a76769 | 2017-03-13 11:38:28 +0100 | [diff] [blame] | 280 | p->flags = 0; |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 281 | p->private = NULL; |
| 282 | |
Willy Tarreau | 70c6fd8 | 2012-11-11 21:02:34 +0100 | [diff] [blame] | 283 | p->clo = __fd_clo; |
Willy Tarreau | ef1d1f8 | 2007-04-16 00:25:25 +0200 | [diff] [blame] | 284 | p->test = _do_test; |
| 285 | p->init = _do_init; |
| 286 | p->term = _do_term; |
| 287 | p->poll = _do_poll; |
Willy Tarreau | 4f60f16 | 2007-04-08 16:39:58 +0200 | [diff] [blame] | 288 | } |
| 289 | |
| 290 | |
| 291 | /* |
| 292 | * Local variables: |
| 293 | * c-indent-level: 8 |
| 294 | * c-basic-offset: 8 |
| 295 | * End: |
| 296 | */ |