… | |
… | |
44 | #define MIN_INTERVAL 1e-6 // minimum packet send interval, in seconds |
44 | #define MIN_INTERVAL 1e-6 // minimum packet send interval, in seconds |
45 | |
45 | |
46 | #define HDR_SIZE_IP4 20 |
46 | #define HDR_SIZE_IP4 20 |
47 | #define HDR_SIZE_IP6 48 |
47 | #define HDR_SIZE_IP6 48 |
48 | |
48 | |
49 | //TODO: xread/xwrite for atomicity? we currently rely on the fact that the pip buffersize divides exactly by pointer sizes |
49 | static int thr_res[2]; // worker thread finished status |
50 | |
|
|
51 | typedef uint8_t addr_tt[16]; |
|
|
52 | |
|
|
53 | static int thr_res[2]; // receive from worker(s) |
|
|
54 | static int icmp4_fd = -1, icmp6_fd = -1; |
50 | static int icmp4_fd = -1; |
|
|
51 | static int icmp6_fd = -1; |
55 | |
52 | |
56 | /*****************************************************************************/ |
53 | /*****************************************************************************/ |
57 | |
54 | |
58 | typedef double tstamp; |
55 | typedef double tstamp; |
59 | |
56 | |
… | |
… | |
106 | |
103 | |
107 | uint32_t src; |
104 | uint32_t src; |
108 | uint32_t dst; |
105 | uint32_t dst; |
109 | } IP4HDR; |
106 | } IP4HDR; |
110 | |
107 | |
111 | #if 0 |
|
|
112 | typedef struct |
|
|
113 | { |
|
|
114 | uint8_t version; |
|
|
115 | uint8_t x1, x2, x3; |
|
|
116 | |
|
|
117 | uint16_t payload_len; |
|
|
118 | uint8_t nxt_hdr; |
|
|
119 | uint8_t hop_limit; |
|
|
120 | |
|
|
121 | uint8_t src[16]; |
|
|
122 | uint8_t dst[16]; |
|
|
123 | } IP6HDR; |
|
|
124 | #endif |
|
|
125 | |
|
|
126 | /*****************************************************************************/ |
108 | /*****************************************************************************/ |
|
|
109 | |
|
|
110 | typedef uint8_t addr_tt[16]; |
127 | |
111 | |
128 | typedef struct |
112 | typedef struct |
129 | { |
113 | { |
130 | tstamp next; |
114 | tstamp next; |
131 | double interval; |
115 | double interval; |
132 | int addrlen; |
116 | int addrlen; |
133 | addr_tt lo, hi; |
117 | |
134 | void *items; |
118 | addr_tt lo, hi; /* only if !addrcnt */ |
|
|
119 | |
|
|
120 | int addrcnt; |
|
|
121 | /* addrcnt addresses follow */ |
135 | } RANGE; |
122 | } RANGE; |
136 | |
123 | |
137 | typedef struct |
124 | typedef struct |
138 | { |
125 | { |
139 | RANGE **ranges; |
126 | RANGE **ranges; |
… | |
… | |
166 | |
153 | |
167 | typedef struct |
154 | typedef struct |
168 | { |
155 | { |
169 | uint8_t type, code; |
156 | uint8_t type, code; |
170 | uint16_t cksum; |
157 | uint16_t cksum; |
|
|
158 | |
171 | uint16_t id, seq; |
159 | uint16_t id, seq; |
|
|
160 | |
172 | uint16_t pinger; |
161 | uint16_t pinger; |
173 | uint16_t magic; |
162 | uint16_t magic; |
|
|
163 | |
174 | uint32_t stamp_hi; |
164 | uint32_t stamp_hi; |
175 | uint32_t stamp_lo; |
165 | uint32_t stamp_lo; |
176 | } PKT; |
166 | } PKT; |
177 | |
167 | |
178 | static int |
168 | static int |
… | |
… | |
228 | range_free (RANGE *self) |
218 | range_free (RANGE *self) |
229 | { |
219 | { |
230 | free (self); |
220 | free (self); |
231 | } |
221 | } |
232 | |
222 | |
233 | static void |
|
|
234 | inc_addr (addr_tt *addr) |
|
|
235 | { |
|
|
236 | int len = sizeof (addr_tt) - 1; |
|
|
237 | |
|
|
238 | while (!++(*addr)[len]) |
|
|
239 | --len; |
|
|
240 | } |
|
|
241 | |
|
|
242 | /*****************************************************************************/ |
|
|
243 | |
|
|
244 | /* like sendto, but retries on failure */ |
223 | /* like sendto, but retries on failure */ |
245 | static void |
224 | static void |
246 | xsendto (int fd, void *buf, size_t len, int flags, void *sa, int salen) |
225 | xsendto (int fd, void *buf, size_t len, int flags, void *sa, int salen) |
247 | { |
226 | { |
248 | tstamp wait = 0; |
227 | tstamp wait = DRAIN_INTERVAL / 2.; |
249 | |
228 | |
250 | while (sendto (fd, buf, len, flags, sa, salen) < 0 && errno == ENOBUFS) |
229 | while (sendto (fd, buf, len, flags, sa, salen) < 0 && errno == ENOBUFS) |
251 | ssleep (wait += DRAIN_INTERVAL); |
230 | ssleep (wait *= 2.); |
252 | } |
231 | } |
253 | |
232 | |
|
|
233 | // ping current address, return true and increment if more to ping |
254 | static void |
234 | static int |
255 | send_ping (PKT *pkt, addr_tt *addr, int addr_len) |
235 | range_send_ping (RANGE *self, PKT *pkt) |
256 | { |
236 | { |
|
|
237 | // send ping |
|
|
238 | uint8_t *addr; |
|
|
239 | |
|
|
240 | if (self->addrcnt) |
|
|
241 | addr = (self->addrcnt - 1) * self->addrlen + (uint8_t *)(self + 1); |
|
|
242 | else |
|
|
243 | addr = sizeof (addr_tt) - self->addrlen + self->lo; |
|
|
244 | |
257 | pkt->cksum = 0; |
245 | pkt->cksum = 0; |
258 | |
246 | |
259 | if (addr_len == 4) |
247 | if (self->addrlen == 4) |
260 | { |
248 | { |
261 | struct sockaddr_in sa; |
249 | struct sockaddr_in sa; |
262 | |
250 | |
263 | pkt->type = ICMP4_ECHO; |
251 | pkt->type = ICMP4_ECHO; |
264 | pkt_cksum (pkt); |
252 | pkt_cksum (pkt); |
265 | |
253 | |
266 | sa.sin_family = AF_INET; |
254 | sa.sin_family = AF_INET; |
267 | sa.sin_port = 0; |
255 | sa.sin_port = 0; |
268 | |
256 | |
269 | memcpy (&sa.sin_addr, |
257 | memcpy (&sa.sin_addr, addr, sizeof (sa.sin_addr)); |
270 | sizeof (addr_tt) - sizeof (sa.sin_addr) + (char *)addr, |
|
|
271 | sizeof (sa.sin_addr)); |
|
|
272 | |
258 | |
273 | xsendto (icmp4_fd, pkt, sizeof (*pkt), 0, &sa, sizeof (sa)); |
259 | xsendto (icmp4_fd, pkt, sizeof (*pkt), 0, &sa, sizeof (sa)); |
274 | } |
260 | } |
275 | else |
261 | else |
276 | { |
262 | { |
… | |
… | |
282 | sa.sin6_family = AF_INET6; |
268 | sa.sin6_family = AF_INET6; |
283 | sa.sin6_port = 0; |
269 | sa.sin6_port = 0; |
284 | sa.sin6_flowinfo = 0; |
270 | sa.sin6_flowinfo = 0; |
285 | sa.sin6_scope_id = 0; |
271 | sa.sin6_scope_id = 0; |
286 | |
272 | |
287 | memcpy (&sa.sin6_addr, |
273 | memcpy (&sa.sin6_addr, addr, sizeof (sa.sin6_addr)); |
288 | sizeof (addr_tt) - sizeof (sa.sin6_addr) + (char *)addr, |
|
|
289 | sizeof (sa.sin6_addr)); |
|
|
290 | |
274 | |
291 | xsendto (icmp6_fd, &pkt, sizeof (pkt), 0, &sa, sizeof (sa)); |
275 | xsendto (icmp6_fd, pkt, sizeof (*pkt), 0, &sa, sizeof (sa)); |
292 | #endif |
276 | #endif |
293 | } |
277 | } |
|
|
278 | |
|
|
279 | // see if we have any more addresses |
|
|
280 | if (self->addrcnt) |
|
|
281 | { |
|
|
282 | if (!--self->addrcnt) |
|
|
283 | return 0; |
|
|
284 | } |
|
|
285 | else |
|
|
286 | { |
|
|
287 | if (!memcmp (&self->lo, &self->hi, sizeof (addr_tt))) |
|
|
288 | return 0; |
|
|
289 | |
|
|
290 | // increment self->lo |
|
|
291 | { |
|
|
292 | int len = sizeof (addr_tt) - 1; |
|
|
293 | |
|
|
294 | while (!++self->lo [len]) |
|
|
295 | --len; |
|
|
296 | } |
|
|
297 | } |
|
|
298 | |
|
|
299 | return 1; |
294 | } |
300 | } |
|
|
301 | |
|
|
302 | /*****************************************************************************/ |
295 | |
303 | |
296 | static void |
304 | static void |
297 | downheap (PINGER *self) |
305 | downheap (PINGER *self) |
298 | { |
306 | { |
299 | RANGE *elem = self->ranges [0]; /* always exists */ |
307 | RANGE *elem = self->ranges [0]; /* always exists */ |
… | |
… | |
383 | |
391 | |
384 | now = NOW (); |
392 | now = NOW (); |
385 | |
393 | |
386 | ts_to_pkt (&pkt, now); |
394 | ts_to_pkt (&pkt, now); |
387 | |
395 | |
388 | send_ping (&pkt, &range->lo, range->addrlen); |
396 | if (!range_send_ping (range, &pkt)) |
389 | |
|
|
390 | if (!memcmp (&range->lo, &range->hi, sizeof (addr_tt))) |
|
|
391 | { |
397 | { |
392 | self->ranges [0] = self->ranges [--self->rangecnt]; |
398 | self->ranges [0] = self->ranges [--self->rangecnt]; |
393 | range_free (range); |
399 | range_free (range); |
394 | } |
400 | } |
395 | else |
401 | else |
396 | { |
402 | { |
397 | inc_addr (&range->lo); |
|
|
398 | |
|
|
399 | range->next = next; |
403 | range->next = next; |
400 | range->next += range->interval; |
404 | range->next += range->interval; |
401 | |
|
|
402 | downheap (self); |
|
|
403 | } |
405 | } |
|
|
406 | |
|
|
407 | downheap (self); |
404 | |
408 | |
405 | next += self->interval; |
409 | next += self->interval; |
406 | } |
410 | } |
407 | |
411 | |
408 | ssleep (self->maxrtt); |
412 | ssleep (self->maxrtt); |
… | |
… | |
503 | range_free (self->ranges [--self->rangecnt]); |
507 | range_free (self->ranges [--self->rangecnt]); |
504 | |
508 | |
505 | free (self->ranges); |
509 | free (self->ranges); |
506 | } |
510 | } |
507 | |
511 | |
|
|
512 | static void |
|
|
513 | pinger_add_range (PINGER *self, RANGE *range) |
|
|
514 | { |
|
|
515 | if (self->rangecnt == self->rangemax) |
|
|
516 | self->ranges = realloc (self->ranges, sizeof (self->ranges [0]) * (self->rangemax <<= 1)); |
|
|
517 | |
|
|
518 | self->ranges [self->rangecnt] = range; |
|
|
519 | upheap (self, self->rangecnt); |
|
|
520 | ++self->rangecnt; |
|
|
521 | } |
|
|
522 | |
508 | /*****************************************************************************/ |
523 | /*****************************************************************************/ |
509 | |
524 | |
510 | static void |
525 | static void |
511 | recv_feed (PINGER *self, void *addr, int addrlen, tstamp rtt) |
526 | recv_feed (PINGER *self, void *addr, int addrlen, tstamp rtt) |
512 | { |
527 | { |
… | |
… | |
542 | return; |
557 | return; |
543 | |
558 | |
544 | ENTER; |
559 | ENTER; |
545 | SAVETMPS; |
560 | SAVETMPS; |
546 | |
561 | |
547 | while (firstrecv >= 0) |
562 | do |
548 | { |
563 | { |
549 | dSP; |
564 | dSP; |
550 | PINGER *self = pingers [firstrecv]; |
565 | PINGER *self = pingers [firstrecv]; |
551 | firstrecv = self->nextrecv; |
566 | firstrecv = self->nextrecv; |
552 | |
567 | |
… | |
… | |
556 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)self->recvq))); |
571 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)self->recvq))); |
557 | self->recvq = 0; |
572 | self->recvq = 0; |
558 | PUTBACK; |
573 | PUTBACK; |
559 | call_sv (self->recvcb, G_DISCARD | G_VOID); |
574 | call_sv (self->recvcb, G_DISCARD | G_VOID); |
560 | } |
575 | } |
|
|
576 | while (firstrecv >= 0); |
561 | |
577 | |
562 | FREETMPS; |
578 | FREETMPS; |
563 | LEAVE; |
579 | LEAVE; |
564 | } |
580 | } |
565 | |
581 | |
… | |
… | |
648 | } |
664 | } |
649 | |
665 | |
650 | PROTOTYPES: DISABLE |
666 | PROTOTYPES: DISABLE |
651 | |
667 | |
652 | void |
668 | void |
653 | _new (SV *klass, UV magic1, UV magic2, UV magic3) |
|
|
654 | PPCODE: |
|
|
655 | { |
|
|
656 | SV *pv = NEWSV (0, sizeof (PINGER)); |
|
|
657 | PINGER *self = (PINGER *)SvPVX (pv); |
|
|
658 | SvPOK_only (pv); |
|
|
659 | XPUSHs (sv_2mortal (sv_bless (newRV_noinc (pv), gv_stashpv (SvPV_nolen (klass), 1)))); |
|
|
660 | pinger_init (self); |
|
|
661 | self->magic1 = magic1; |
|
|
662 | self->magic2 = magic2; |
|
|
663 | self->magic3 = magic3; |
|
|
664 | } |
|
|
665 | |
|
|
666 | void |
|
|
667 | _free (PINGER *self) |
|
|
668 | CODE: |
|
|
669 | pinger_free (self); |
|
|
670 | |
|
|
671 | IV |
|
|
672 | id (PINGER *self, ...) |
|
|
673 | CODE: |
|
|
674 | RETVAL = self->id; |
|
|
675 | OUTPUT: |
|
|
676 | RETVAL |
|
|
677 | |
|
|
678 | void pinger_start (PINGER *self) |
|
|
679 | |
|
|
680 | void pinger_stop (PINGER *self) |
|
|
681 | |
|
|
682 | void _stop_id (UV id) |
|
|
683 | CODE: |
|
|
684 | if (id < pingercnt && pingers [id]) |
|
|
685 | pinger_stop (pingers [id]); |
|
|
686 | |
|
|
687 | void interval (PINGER *self, NV interval) |
|
|
688 | CODE: |
|
|
689 | self->interval = interval > MIN_INTERVAL ? interval : MIN_INTERVAL; |
|
|
690 | |
|
|
691 | void add_range (PINGER *self, SV *lo_, SV *hi_, NV interval) |
|
|
692 | CODE: |
|
|
693 | { |
|
|
694 | STRLEN lo_len, hi_len; |
|
|
695 | char *lo = SvPVbyte (lo_, lo_len); |
|
|
696 | char *hi = SvPVbyte (hi_, hi_len); |
|
|
697 | RANGE *range; |
|
|
698 | |
|
|
699 | if (lo_len != hi_len || (lo_len != 4 && lo_len != 16)) |
|
|
700 | croak ("AnyEvent::FastPing::add_range address range must be specified as two binary IPv4 or IPv6 addresses"); |
|
|
701 | |
|
|
702 | if (lo_len == 4 && icmp4_fd < 0) croak ("IPv4 support unavailable"); |
|
|
703 | if (lo_len == 16 && icmp6_fd < 0) croak ("IPv6 support unavailable"); |
|
|
704 | |
|
|
705 | range = calloc (1, sizeof (RANGE)); |
|
|
706 | |
|
|
707 | range->next = 0; |
|
|
708 | range->interval = interval > MIN_INTERVAL ? interval : MIN_INTERVAL; |
|
|
709 | range->addrlen = lo_len; |
|
|
710 | |
|
|
711 | memcpy (sizeof (addr_tt) - lo_len + (char *)&range->lo, lo, lo_len); |
|
|
712 | memcpy (sizeof (addr_tt) - lo_len + (char *)&range->hi, hi, lo_len); |
|
|
713 | |
|
|
714 | if (self->rangecnt == self->rangemax) |
|
|
715 | self->ranges = realloc (self->ranges, sizeof (self->ranges [0]) * (self->rangemax <<= 1)); |
|
|
716 | |
|
|
717 | self->ranges [self->rangecnt] = range; |
|
|
718 | upheap (self, self->rangecnt); |
|
|
719 | ++self->rangecnt; |
|
|
720 | } |
|
|
721 | |
|
|
722 | void |
|
|
723 | on_recv (PINGER *self, SV *cb) |
|
|
724 | CODE: |
|
|
725 | SvREFCNT_dec (self->recvcb); |
|
|
726 | self->recvcb = newSVsv (cb); |
|
|
727 | |
|
|
728 | void |
|
|
729 | max_rtt (PINGER *self, NV maxrtt) |
|
|
730 | CODE: |
|
|
731 | self->maxrtt = maxrtt; |
|
|
732 | |
|
|
733 | void |
|
|
734 | _recv_icmp4 (...) |
669 | _recv_icmp4 (...) |
735 | CODE: |
670 | CODE: |
736 | { |
671 | { |
737 | char buf [512]; |
672 | char buf [512]; |
738 | struct sockaddr_in sa; |
673 | struct sockaddr_in sa; |
|
|
674 | int maxrecv; |
739 | |
675 | |
740 | for (;;) |
676 | for (maxrecv = 256+1; --maxrecv; ) |
741 | { |
677 | { |
742 | PINGER *pinger; |
678 | PINGER *pinger; |
743 | IP4HDR *iphdr = (IP4HDR *)buf; |
679 | IP4HDR *iphdr = (IP4HDR *)buf; |
744 | socklen_t sl = sizeof (sa); |
680 | socklen_t sl = sizeof (sa); |
745 | int len = recvfrom (icmp4_fd, buf, sizeof (buf), MSG_TRUNC, (struct sockaddr *)&sa, &sl); |
681 | int len = recvfrom (icmp4_fd, buf, sizeof (buf), MSG_TRUNC, (struct sockaddr *)&sa, &sl); |
… | |
… | |
750 | break; |
686 | break; |
751 | |
687 | |
752 | hdrlen = (iphdr->version_ihl & 15) * 4; |
688 | hdrlen = (iphdr->version_ihl & 15) * 4; |
753 | totlen = ntohs (iphdr->tot_len); |
689 | totlen = ntohs (iphdr->tot_len); |
754 | |
690 | |
755 | // packet corrupt? |
|
|
756 | if (totlen > len |
691 | if (totlen > len |
757 | || iphdr->protocol != IPPROTO_ICMP |
692 | || iphdr->protocol != IPPROTO_ICMP |
758 | || hdrlen < HDR_SIZE_IP4 || hdrlen + sizeof (PKT) != totlen) |
693 | || hdrlen < HDR_SIZE_IP4 || hdrlen + sizeof (PKT) != totlen) |
759 | continue; |
694 | continue; |
760 | |
695 | |
… | |
… | |
780 | _recv_icmp6 (...) |
715 | _recv_icmp6 (...) |
781 | CODE: |
716 | CODE: |
782 | { |
717 | { |
783 | struct sockaddr_in6 sa; |
718 | struct sockaddr_in6 sa; |
784 | PKT pkt; |
719 | PKT pkt; |
|
|
720 | int maxrecv; |
785 | |
721 | |
786 | for (;;) |
722 | for (maxrecv = 256+1; --maxrecv; ) |
787 | { |
723 | { |
788 | PINGER *pinger; |
724 | PINGER *pinger; |
789 | socklen_t sl = sizeof (sa); |
725 | socklen_t sl = sizeof (sa); |
790 | int len = recvfrom (icmp6_fd, &pkt, sizeof (pkt), MSG_TRUNC, (struct sockaddr *)&sa, &sl); |
726 | int len = recvfrom (icmp6_fd, &pkt, sizeof (pkt), MSG_TRUNC, (struct sockaddr *)&sa, &sl); |
791 | |
727 | |
… | |
… | |
806 | } |
742 | } |
807 | |
743 | |
808 | recv_flush (); |
744 | recv_flush (); |
809 | } |
745 | } |
810 | |
746 | |
|
|
747 | void |
|
|
748 | _new (SV *klass, UV magic1, UV magic2, UV magic3) |
|
|
749 | PPCODE: |
|
|
750 | { |
|
|
751 | SV *pv = NEWSV (0, sizeof (PINGER)); |
|
|
752 | PINGER *self = (PINGER *)SvPVX (pv); |
|
|
753 | SvPOK_only (pv); |
|
|
754 | XPUSHs (sv_2mortal (sv_bless (newRV_noinc (pv), gv_stashpv (SvPVutf8_nolen (klass), 1)))); |
|
|
755 | pinger_init (self); |
|
|
756 | self->magic1 = magic1; |
|
|
757 | self->magic2 = magic2; |
|
|
758 | self->magic3 = magic3; |
|
|
759 | } |
|
|
760 | |
|
|
761 | void |
|
|
762 | _free (PINGER *self) |
|
|
763 | CODE: |
|
|
764 | pinger_free (self); |
|
|
765 | |
|
|
766 | IV |
|
|
767 | id (PINGER *self, ...) |
|
|
768 | CODE: |
|
|
769 | RETVAL = self->id; |
|
|
770 | OUTPUT: |
|
|
771 | RETVAL |
|
|
772 | |
|
|
773 | void pinger_start (PINGER *self) |
|
|
774 | |
|
|
775 | void pinger_stop (PINGER *self) |
|
|
776 | |
|
|
777 | void |
|
|
778 | _stop_id (UV id) |
|
|
779 | CODE: |
|
|
780 | if (id < pingercnt && pingers [id]) |
|
|
781 | pinger_stop (pingers [id]); |
|
|
782 | |
|
|
783 | void |
|
|
784 | interval (PINGER *self, NV interval) |
|
|
785 | CODE: |
|
|
786 | self->interval = interval > MIN_INTERVAL ? interval : MIN_INTERVAL; |
|
|
787 | |
|
|
788 | void |
|
|
789 | max_rtt (PINGER *self, NV maxrtt) |
|
|
790 | CODE: |
|
|
791 | self->maxrtt = maxrtt; |
|
|
792 | |
|
|
793 | void |
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|
794 | add_range (PINGER *self, SV *lo_, SV *hi_, NV interval) |
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|
795 | CODE: |
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|
796 | { |
|
|
797 | STRLEN lo_len, hi_len; |
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|
798 | char *lo = SvPVbyte (lo_, lo_len); |
|
|
799 | char *hi = SvPVbyte (hi_, hi_len); |
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|
800 | RANGE *range; |
|
|
801 | |
|
|
802 | if (lo_len != hi_len || (lo_len != 4 && lo_len != 16)) |
|
|
803 | croak ("AnyEvent::FastPing::add_range address range must be specified as two binary IPv4 or IPv6 addresses"); |
|
|
804 | |
|
|
805 | if (lo_len == 4 && icmp4_fd < 0) croak ("IPv4 support unavailable"); |
|
|
806 | if (lo_len == 16 && icmp6_fd < 0) croak ("IPv6 support unavailable"); |
|
|
807 | |
|
|
808 | if (memcmp (lo, hi, lo_len) > 0) |
|
|
809 | croak ("AnyEvent::FastPing::add_range called with lo > hi"); |
|
|
810 | |
|
|
811 | range = calloc (1, sizeof (RANGE)); |
|
|
812 | |
|
|
813 | range->next = 0; |
|
|
814 | range->interval = interval > MIN_INTERVAL ? interval : MIN_INTERVAL; |
|
|
815 | range->addrlen = lo_len; |
|
|
816 | |
|
|
817 | memcpy (sizeof (addr_tt) - lo_len + (char *)&range->lo, lo, lo_len); |
|
|
818 | memcpy (sizeof (addr_tt) - lo_len + (char *)&range->hi, hi, lo_len); |
|
|
819 | |
|
|
820 | pinger_add_range (self, range); |
|
|
821 | } |
|
|
822 | |
|
|
823 | void |
|
|
824 | add_hosts (PINGER *self, SV *addrs, NV interval) |
|
|
825 | CODE: |
|
|
826 | { |
|
|
827 | AV *av; |
|
|
828 | int i; |
|
|
829 | int cnt; |
|
|
830 | int addrlen; |
|
|
831 | RANGE *range; |
|
|
832 | |
|
|
833 | if (!SvROK (addrs) || SvTYPE (SvRV (addrs)) != SVt_PVAV) |
|
|
834 | croak ("AnyEvent::FastPing::add_hosst expects an arrayref with binary IPv4 or IPv6 addresses"); |
|
|
835 | |
|
|
836 | av = (AV *)SvRV (addrs); |
|
|
837 | cnt = av_len (av) + 1; |
|
|
838 | |
|
|
839 | if (!cnt) |
|
|
840 | XSRETURN_EMPTY; |
|
|
841 | |
|
|
842 | addrlen = SvCUR (*av_fetch (av, 0, 1)); |
|
|
843 | |
|
|
844 | if (addrlen != 4 && addrlen != 16) |
|
|
845 | croak ("AnyEvent::FastPing::add_hosts addresses must be specified as binary IPv4 or IPv6 addresses"); |
|
|
846 | |
|
|
847 | for (i = cnt; --i; ) |
|
|
848 | { |
|
|
849 | SV *sv = *av_fetch (av, i, 1); |
|
|
850 | |
|
|
851 | if (!sv_utf8_downgrade (sv, 1) || addrlen != SvCUR (sv)) |
|
|
852 | croak ("AnyEvent::FastPing::add_hosts addresses must all have the same size"); |
|
|
853 | } |
|
|
854 | |
|
|
855 | range = calloc (1, sizeof (RANGE) + cnt * addrlen); |
|
|
856 | |
|
|
857 | range->next = 0; |
|
|
858 | range->interval = interval > MIN_INTERVAL ? interval : MIN_INTERVAL; |
|
|
859 | range->addrlen = addrlen; |
|
|
860 | range->addrcnt = cnt; |
|
|
861 | |
|
|
862 | for (i = cnt; i--; ) |
|
|
863 | memcpy ((uint8_t *)(range + 1) + (cnt - 1 - i) * addrlen, |
|
|
864 | SvPVbyte_nolen (*av_fetch (av, i, 1)), |
|
|
865 | addrlen); |
|
|
866 | |
|
|
867 | pinger_add_range (self, range); |
|
|
868 | } |
|
|
869 | |
|
|
870 | void |
|
|
871 | on_recv (PINGER *self, SV *cb) |
|
|
872 | CODE: |
|
|
873 | SvREFCNT_dec (self->recvcb); |
|
|
874 | self->recvcb = newSVsv (cb); |
|
|
875 | |