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Comparing libev/ev.c (file contents):
Revision 1.59 by root, Sun Nov 4 18:15:16 2007 UTC vs.
Revision 1.65 by root, Sun Nov 4 23:29:48 2007 UTC

… …
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */ 30 */
31#ifndef EV_STANDALONE 31#ifndef EV_STANDALONE
32# include "config.h" 32# include "config.h"
33
34# if HAVE_CLOCK_GETTIME
35# define EV_USE_MONOTONIC 1
36# define EV_USE_REALTIME 1
37# endif
38
39# if HAVE_SELECT && HAVE_SYS_SELECT_H
40# define EV_USE_SELECT 1
41# endif
42
43# if HAVE_POLL && HAVE_POLL_H
44# define EV_USE_POLL 1
45# endif
46
47# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
48# define EV_USE_EPOLL 1
49# endif
50
51# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
52# define EV_USE_KQUEUE 1
53# endif
54
33#endif 55#endif
34 56
35#include <math.h> 57#include <math.h>
36#include <stdlib.h> 58#include <stdlib.h>
37#include <unistd.h> 59#include <unistd.h>
… …
68# define EV_USE_EPOLL 0 90# define EV_USE_EPOLL 0
69#endif 91#endif
70 92
71#ifndef EV_USE_KQUEUE 93#ifndef EV_USE_KQUEUE
72# define EV_USE_KQUEUE 0 94# define EV_USE_KQUEUE 0
95#endif
96
97#ifndef EV_USE_WIN32
98# ifdef WIN32
99# define EV_USE_WIN32 1
100# else
101# define EV_USE_WIN32 0
102# endif
73#endif 103#endif
74 104
75#ifndef EV_USE_REALTIME 105#ifndef EV_USE_REALTIME
76# define EV_USE_REALTIME 1 106# define EV_USE_REALTIME 1
77#endif 107#endif
… …
202 base = realloc (base, sizeof (*base) * (newcnt)); \ 232 base = realloc (base, sizeof (*base) * (newcnt)); \
203 init (base + cur, newcnt - cur); \ 233 init (base + cur, newcnt - cur); \
204 cur = newcnt; \ 234 cur = newcnt; \
205 } 235 }
206 236
237#define array_free(stem, idx) \
238 free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
239
207/*****************************************************************************/ 240/*****************************************************************************/
208 241
209static void 242static void
210anfds_init (ANFD *base, int count) 243anfds_init (ANFD *base, int count)
211{ 244{
… …
276 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 309 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
277 events |= w->events; 310 events |= w->events;
278 311
279 anfd->reify = 0; 312 anfd->reify = 0;
280 313
281 if (anfd->events != events)
282 {
283 method_modify (EV_A_ fd, anfd->events, events); 314 method_modify (EV_A_ fd, anfd->events, events);
284 anfd->events = events; 315 anfd->events = events;
285 }
286 } 316 }
287 317
288 fdchangecnt = 0; 318 fdchangecnt = 0;
289} 319}
290 320
… …
327 357
328/* called on ENOMEM in select/poll to kill some fds and retry */ 358/* called on ENOMEM in select/poll to kill some fds and retry */
329static void 359static void
330fd_enomem (EV_P) 360fd_enomem (EV_P)
331{ 361{
332 int fd = anfdmax; 362 int fd;
333 363
334 while (fd--) 364 for (fd = anfdmax; fd--; )
335 if (anfds [fd].events) 365 if (anfds [fd].events)
336 { 366 {
337 close (fd); 367 close (fd);
338 fd_kill (EV_A_ fd); 368 fd_kill (EV_A_ fd);
339 return; 369 return;
… …
349 /* this should be highly optimised to not do anything but set a flag */ 379 /* this should be highly optimised to not do anything but set a flag */
350 for (fd = 0; fd < anfdmax; ++fd) 380 for (fd = 0; fd < anfdmax; ++fd)
351 if (anfds [fd].events) 381 if (anfds [fd].events)
352 { 382 {
353 anfds [fd].events = 0; 383 anfds [fd].events = 0;
354 fd_change (fd); 384 fd_change (EV_A_ fd);
355 } 385 }
356} 386}
357 387
358/*****************************************************************************/ 388/*****************************************************************************/
359 389
… …
363 WT w = heap [k]; 393 WT w = heap [k];
364 394
365 while (k && heap [k >> 1]->at > w->at) 395 while (k && heap [k >> 1]->at > w->at)
366 { 396 {
367 heap [k] = heap [k >> 1]; 397 heap [k] = heap [k >> 1];
368 heap [k]->active = k + 1; 398 ((W)heap [k])->active = k + 1;
369 k >>= 1; 399 k >>= 1;
370 } 400 }
371 401
372 heap [k] = w; 402 heap [k] = w;
373 heap [k]->active = k + 1; 403 ((W)heap [k])->active = k + 1;
374 404
375} 405}
376 406
377static void 407static void
378downheap (WT *heap, int N, int k) 408downheap (WT *heap, int N, int k)
… …
388 418
389 if (w->at <= heap [j]->at) 419 if (w->at <= heap [j]->at)
390 break; 420 break;
391 421
392 heap [k] = heap [j]; 422 heap [k] = heap [j];
393 heap [k]->active = k + 1; 423 ((W)heap [k])->active = k + 1;
394 k = j; 424 k = j;
395 } 425 }
396 426
397 heap [k] = w; 427 heap [k] = w;
398 heap [k]->active = k + 1; 428 ((W)heap [k])->active = k + 1;
399} 429}
400 430
401/*****************************************************************************/ 431/*****************************************************************************/
402 432
403typedef struct 433typedef struct
… …
492 struct ev_child *w; 522 struct ev_child *w;
493 523
494 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) 524 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
495 if (w->pid == pid || !w->pid) 525 if (w->pid == pid || !w->pid)
496 { 526 {
497 w->priority = sw->priority; /* need to do it *now* */ 527 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
498 w->rpid = pid; 528 w->rpid = pid;
499 w->rstatus = status; 529 w->rstatus = status;
500 event (EV_A_ (W)w, EV_CHILD); 530 event (EV_A_ (W)w, EV_CHILD);
501 } 531 }
502} 532}
503 533
504static void 534static void
… …
586 methods = atoi (getenv ("LIBEV_METHODS")); 616 methods = atoi (getenv ("LIBEV_METHODS"));
587 else 617 else
588 methods = EVMETHOD_ANY; 618 methods = EVMETHOD_ANY;
589 619
590 method = 0; 620 method = 0;
621#if EV_USE_WIN32
622 if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
623#endif
591#if EV_USE_KQUEUE 624#if EV_USE_KQUEUE
592 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); 625 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
593#endif 626#endif
594#if EV_USE_EPOLL 627#if EV_USE_EPOLL
595 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); 628 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
… …
604} 637}
605 638
606void 639void
607loop_destroy (EV_P) 640loop_destroy (EV_P)
608{ 641{
642 int i;
643
644#if EV_USE_WIN32
645 if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
646#endif
609#if EV_USE_KQUEUE 647#if EV_USE_KQUEUE
610 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 648 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
611#endif 649#endif
612#if EV_USE_EPOLL 650#if EV_USE_EPOLL
613 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 651 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
… …
616 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 654 if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
617#endif 655#endif
618#if EV_USE_SELECT 656#if EV_USE_SELECT
619 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 657 if (method == EVMETHOD_SELECT) select_destroy (EV_A);
620#endif 658#endif
659
660 for (i = NUMPRI; i--; )
661 array_free (pending, [i]);
662
663 array_free (fdchange, );
664 array_free (timer, );
665 array_free (periodic, );
666 array_free (idle, );
667 array_free (prepare, );
668 array_free (check, );
621 669
622 method = 0; 670 method = 0;
623 /*TODO*/ 671 /*TODO*/
624} 672}
625 673
… …
641{ 689{
642 struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop)); 690 struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop));
643 691
644 loop_init (EV_A_ methods); 692 loop_init (EV_A_ methods);
645 693
646 if (ev_methods (EV_A)) 694 if (ev_method (EV_A))
647 return loop; 695 return loop;
648 696
649 return 0; 697 return 0;
650} 698}
651 699
… …
728 776
729 loop_destroy (EV_A); 777 loop_destroy (EV_A);
730} 778}
731 779
732void 780void
733ev_default_fork (EV_P) 781ev_default_fork (void)
734{ 782{
783#if EV_MULTIPLICITY
784 struct ev_loop *loop = default_loop;
785#endif
786
735 loop_fork (EV_A); 787 loop_fork (EV_A);
736 788
737 ev_io_stop (EV_A_ &sigev); 789 ev_io_stop (EV_A_ &sigev);
738 close (sigpipe [0]); 790 close (sigpipe [0]);
739 close (sigpipe [1]); 791 close (sigpipe [1]);
… …
756 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 808 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
757 809
758 if (p->w) 810 if (p->w)
759 { 811 {
760 p->w->pending = 0; 812 p->w->pending = 0;
813
761 p->w->cb (EV_A_ p->w, p->events); 814 ((void (*)(EV_P_ W, int))p->w->cb) (EV_A_ p->w, p->events);
762 } 815 }
763 } 816 }
764} 817}
765 818
766static void 819static void
767timers_reify (EV_P) 820timers_reify (EV_P)
768{ 821{
769 while (timercnt && timers [0]->at <= mn_now) 822 while (timercnt && ((WT)timers [0])->at <= mn_now)
770 { 823 {
771 struct ev_timer *w = timers [0]; 824 struct ev_timer *w = timers [0];
825
826 assert (("inactive timer on timer heap detected", ev_is_active (w)));
772 827
773 /* first reschedule or stop timer */ 828 /* first reschedule or stop timer */
774 if (w->repeat) 829 if (w->repeat)
775 { 830 {
776 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 831 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
777 w->at = mn_now + w->repeat; 832 ((WT)w)->at = mn_now + w->repeat;
778 downheap ((WT *)timers, timercnt, 0); 833 downheap ((WT *)timers, timercnt, 0);
779 } 834 }
780 else 835 else
781 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 836 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
782 837
… …
785} 840}
786 841
787static void 842static void
788periodics_reify (EV_P) 843periodics_reify (EV_P)
789{ 844{
790 while (periodiccnt && periodics [0]->at <= rt_now) 845 while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
791 { 846 {
792 struct ev_periodic *w = periodics [0]; 847 struct ev_periodic *w = periodics [0];
848
849 assert (("inactive timer on periodic heap detected", ev_is_active (w)));
793 850
794 /* first reschedule or stop timer */ 851 /* first reschedule or stop timer */
795 if (w->interval) 852 if (w->interval)
796 { 853 {
797 w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval; 854 ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
798 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now)); 855 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));
799 downheap ((WT *)periodics, periodiccnt, 0); 856 downheap ((WT *)periodics, periodiccnt, 0);
800 } 857 }
801 else 858 else
802 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 859 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
803 860
… …
815 { 872 {
816 struct ev_periodic *w = periodics [i]; 873 struct ev_periodic *w = periodics [i];
817 874
818 if (w->interval) 875 if (w->interval)
819 { 876 {
820 ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval; 877 ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
821 878
822 if (fabs (diff) >= 1e-4) 879 if (fabs (diff) >= 1e-4)
823 { 880 {
824 ev_periodic_stop (EV_A_ w); 881 ev_periodic_stop (EV_A_ w);
825 ev_periodic_start (EV_A_ w); 882 ev_periodic_start (EV_A_ w);
… …
886 { 943 {
887 periodics_reschedule (EV_A); 944 periodics_reschedule (EV_A);
888 945
889 /* adjust timers. this is easy, as the offset is the same for all */ 946 /* adjust timers. this is easy, as the offset is the same for all */
890 for (i = 0; i < timercnt; ++i) 947 for (i = 0; i < timercnt; ++i)
891 timers [i]->at += rt_now - mn_now; 948 ((WT)timers [i])->at += rt_now - mn_now;
892 } 949 }
893 950
894 mn_now = rt_now; 951 mn_now = rt_now;
895 } 952 }
896} 953}
… …
947 { 1004 {
948 block = MAX_BLOCKTIME; 1005 block = MAX_BLOCKTIME;
949 1006
950 if (timercnt) 1007 if (timercnt)
951 { 1008 {
952 ev_tstamp to = timers [0]->at - mn_now + method_fudge; 1009 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
953 if (block > to) block = to; 1010 if (block > to) block = to;
954 } 1011 }
955 1012
956 if (periodiccnt) 1013 if (periodiccnt)
957 { 1014 {
958 ev_tstamp to = periodics [0]->at - rt_now + method_fudge; 1015 ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
959 if (block > to) block = to; 1016 if (block > to) block = to;
960 } 1017 }
961 1018
962 if (block < 0.) block = 0.; 1019 if (block < 0.) block = 0.;
963 } 1020 }
… …
1080ev_timer_start (EV_P_ struct ev_timer *w) 1137ev_timer_start (EV_P_ struct ev_timer *w)
1081{ 1138{
1082 if (ev_is_active (w)) 1139 if (ev_is_active (w))
1083 return; 1140 return;
1084 1141
1085 w->at += mn_now; 1142 ((WT)w)->at += mn_now;
1086 1143
1087 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1144 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1088 1145
1089 ev_start (EV_A_ (W)w, ++timercnt); 1146 ev_start (EV_A_ (W)w, ++timercnt);
1090 array_needsize (timers, timermax, timercnt, ); 1147 array_needsize (timers, timermax, timercnt, );
1091 timers [timercnt - 1] = w; 1148 timers [timercnt - 1] = w;
1092 upheap ((WT *)timers, timercnt - 1); 1149 upheap ((WT *)timers, timercnt - 1);
1150
1151 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1093} 1152}
1094 1153
1095void 1154void
1096ev_timer_stop (EV_P_ struct ev_timer *w) 1155ev_timer_stop (EV_P_ struct ev_timer *w)
1097{ 1156{
1098 ev_clear_pending (EV_A_ (W)w); 1157 ev_clear_pending (EV_A_ (W)w);
1099 if (!ev_is_active (w)) 1158 if (!ev_is_active (w))
1100 return; 1159 return;
1101 1160
1161 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1162
1102 if (w->active < timercnt--) 1163 if (((W)w)->active < timercnt--)
1103 { 1164 {
1104 timers [w->active - 1] = timers [timercnt]; 1165 timers [((W)w)->active - 1] = timers [timercnt];
1105 downheap ((WT *)timers, timercnt, w->active - 1); 1166 downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1106 } 1167 }
1107 1168
1108 w->at = w->repeat; 1169 ((WT)w)->at = w->repeat;
1109 1170
1110 ev_stop (EV_A_ (W)w); 1171 ev_stop (EV_A_ (W)w);
1111} 1172}
1112 1173
1113void 1174void
… …
1115{ 1176{
1116 if (ev_is_active (w)) 1177 if (ev_is_active (w))
1117 { 1178 {
1118 if (w->repeat) 1179 if (w->repeat)
1119 { 1180 {
1120 w->at = mn_now + w->repeat; 1181 ((WT)w)->at = mn_now + w->repeat;
1121 downheap ((WT *)timers, timercnt, w->active - 1); 1182 downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1122 } 1183 }
1123 else 1184 else
1124 ev_timer_stop (EV_A_ w); 1185 ev_timer_stop (EV_A_ w);
1125 } 1186 }
1126 else if (w->repeat) 1187 else if (w->repeat)
… …
1135 1196
1136 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1197 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1137 1198
1138 /* this formula differs from the one in periodic_reify because we do not always round up */ 1199 /* this formula differs from the one in periodic_reify because we do not always round up */
1139 if (w->interval) 1200 if (w->interval)
1140 w->at += ceil ((rt_now - w->at) / w->interval) * w->interval; 1201 ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
1141 1202
1142 ev_start (EV_A_ (W)w, ++periodiccnt); 1203 ev_start (EV_A_ (W)w, ++periodiccnt);
1143 array_needsize (periodics, periodicmax, periodiccnt, ); 1204 array_needsize (periodics, periodicmax, periodiccnt, );
1144 periodics [periodiccnt - 1] = w; 1205 periodics [periodiccnt - 1] = w;
1145 upheap ((WT *)periodics, periodiccnt - 1); 1206 upheap ((WT *)periodics, periodiccnt - 1);
1207
1208 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1146} 1209}
1147 1210
1148void 1211void
1149ev_periodic_stop (EV_P_ struct ev_periodic *w) 1212ev_periodic_stop (EV_P_ struct ev_periodic *w)
1150{ 1213{
1151 ev_clear_pending (EV_A_ (W)w); 1214 ev_clear_pending (EV_A_ (W)w);
1152 if (!ev_is_active (w)) 1215 if (!ev_is_active (w))
1153 return; 1216 return;
1154 1217
1218 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1219
1155 if (w->active < periodiccnt--) 1220 if (((W)w)->active < periodiccnt--)
1156 { 1221 {
1157 periodics [w->active - 1] = periodics [periodiccnt]; 1222 periodics [((W)w)->active - 1] = periodics [periodiccnt];
1158 downheap ((WT *)periodics, periodiccnt, w->active - 1); 1223 downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1159 } 1224 }
1160 1225
1161 ev_stop (EV_A_ (W)w); 1226 ev_stop (EV_A_ (W)w);
1162} 1227}
1163 1228
… …
1177{ 1242{
1178 ev_clear_pending (EV_A_ (W)w); 1243 ev_clear_pending (EV_A_ (W)w);
1179 if (ev_is_active (w)) 1244 if (ev_is_active (w))
1180 return; 1245 return;
1181 1246
1182 idles [w->active - 1] = idles [--idlecnt]; 1247 idles [((W)w)->active - 1] = idles [--idlecnt];
1183 ev_stop (EV_A_ (W)w); 1248 ev_stop (EV_A_ (W)w);
1184} 1249}
1185 1250
1186void 1251void
1187ev_prepare_start (EV_P_ struct ev_prepare *w) 1252ev_prepare_start (EV_P_ struct ev_prepare *w)
… …
1199{ 1264{
1200 ev_clear_pending (EV_A_ (W)w); 1265 ev_clear_pending (EV_A_ (W)w);
1201 if (ev_is_active (w)) 1266 if (ev_is_active (w))
1202 return; 1267 return;
1203 1268
1204 prepares [w->active - 1] = prepares [--preparecnt]; 1269 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1205 ev_stop (EV_A_ (W)w); 1270 ev_stop (EV_A_ (W)w);
1206} 1271}
1207 1272
1208void 1273void
1209ev_check_start (EV_P_ struct ev_check *w) 1274ev_check_start (EV_P_ struct ev_check *w)
… …
1221{ 1286{
1222 ev_clear_pending (EV_A_ (W)w); 1287 ev_clear_pending (EV_A_ (W)w);
1223 if (ev_is_active (w)) 1288 if (ev_is_active (w))
1224 return; 1289 return;
1225 1290
1226 checks [w->active - 1] = checks [--checkcnt]; 1291 checks [((W)w)->active - 1] = checks [--checkcnt];
1227 ev_stop (EV_A_ (W)w); 1292 ev_stop (EV_A_ (W)w);
1228} 1293}
1229 1294
1230#ifndef SA_RESTART 1295#ifndef SA_RESTART
1231# define SA_RESTART 0 1296# define SA_RESTART 0
… …
1244 1309
1245 ev_start (EV_A_ (W)w, 1); 1310 ev_start (EV_A_ (W)w, 1);
1246 array_needsize (signals, signalmax, w->signum, signals_init); 1311 array_needsize (signals, signalmax, w->signum, signals_init);
1247 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1312 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1248 1313
1249 if (!w->next) 1314 if (!((WL)w)->next)
1250 { 1315 {
1251 struct sigaction sa; 1316 struct sigaction sa;
1252 sa.sa_handler = sighandler; 1317 sa.sa_handler = sighandler;
1253 sigfillset (&sa.sa_mask); 1318 sigfillset (&sa.sa_mask);
1254 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 1319 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */

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