1 |
#include "EXTERN.h" |
2 |
#include "perl.h" |
3 |
#include "XSUB.h" |
4 |
|
5 |
#include <math.h> |
6 |
#include <netinet/in.h> |
7 |
|
8 |
#include <sys/time.h> |
9 |
#include <time.h> |
10 |
#include <event.h> |
11 |
#include <evdns.h> |
12 |
/*include <evhttp.h>*/ /* does not compile */ |
13 |
|
14 |
#define EV_NONE 0 |
15 |
#define EV_UNDEF -1 |
16 |
|
17 |
#define TIMEOUT_NONE HUGE_VAL |
18 |
|
19 |
typedef struct event_base *Base; |
20 |
|
21 |
static HV *stash_base, *stash_event; |
22 |
|
23 |
static double tv_get (struct timeval *tv) |
24 |
{ |
25 |
return tv->tv_sec + tv->tv_usec * 1e-6; |
26 |
} |
27 |
|
28 |
static void tv_set (struct timeval *tv, double val) |
29 |
{ |
30 |
tv->tv_sec = (long)val; |
31 |
tv->tv_usec = (long)((val - (double)tv->tv_sec) * 1e6); |
32 |
|
33 |
} |
34 |
|
35 |
///////////////////////////////////////////////////////////////////////////// |
36 |
// Event |
37 |
|
38 |
typedef struct ev { |
39 |
struct event ev; |
40 |
SV *cb, *fh; |
41 |
SV *self; /* contains this struct */ |
42 |
double timeout; |
43 |
double interval; |
44 |
unsigned char active; |
45 |
unsigned char abstime; |
46 |
} *Event; |
47 |
|
48 |
static double |
49 |
e_now () |
50 |
{ |
51 |
struct timeval tv; |
52 |
gettimeofday (&tv, 0); |
53 |
|
54 |
return tv_get (&tv); |
55 |
} |
56 |
|
57 |
static void e_cb (int fd, short events, void *arg); |
58 |
|
59 |
static int sv_fileno (SV *fh) |
60 |
{ |
61 |
SvGETMAGIC (fh); |
62 |
|
63 |
if (SvROK (fh)) |
64 |
fh = SvRV (fh); |
65 |
|
66 |
if (SvTYPE (fh) == SVt_PVGV) |
67 |
return PerlIO_fileno (IoIFP (sv_2io (fh))); |
68 |
|
69 |
if (SvIOK (fh)) |
70 |
return SvIV (fh); |
71 |
|
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return -1; |
73 |
} |
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|
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static Event |
76 |
e_new (SV *fh, short events, SV *cb) |
77 |
{ |
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int fd = sv_fileno (fh); |
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Event ev; |
80 |
SV *self = NEWSV (0, sizeof (struct ev)); |
81 |
SvPOK_only (self); |
82 |
SvCUR_set (self, sizeof (struct ev)); |
83 |
|
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ev = (Event)SvPVX (self); |
85 |
|
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ev->fh = newSVsv (fh); |
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ev->cb = newSVsv (cb); |
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ev->self = self; |
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ev->timeout = TIMEOUT_NONE; |
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ev->interval = 0.; |
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ev->abstime = 0; |
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ev->active = 0; |
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|
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event_set (&ev->ev, fd, events, e_cb, (void *)ev); |
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|
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return ev; |
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} |
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|
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static struct timeval * |
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e_tv (Event ev) |
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{ |
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static struct timeval tv; |
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double to = ev->timeout; |
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|
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if (to == TIMEOUT_NONE) |
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return 0; |
107 |
|
108 |
if (ev->abstime) |
109 |
{ |
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double now = e_now (); |
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|
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if (now > to && ev->interval) |
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ev->timeout = (to += ceil ((now - to) / ev->interval) * ev->interval); |
114 |
|
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to -= now; |
116 |
} |
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else if (to < 0.) |
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to = 0.; |
119 |
|
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tv_set (&tv, to); |
121 |
|
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return &tv; |
123 |
} |
124 |
|
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static SV *e_self (Event ev) |
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{ |
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SV *rv; |
128 |
|
129 |
if (SvOBJECT (ev->self)) |
130 |
rv = newRV_inc (ev->self); |
131 |
else |
132 |
{ |
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rv = newRV_noinc (ev->self); |
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sv_bless (rv, stash_event); |
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SvREADONLY_on (ev->self); |
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} |
137 |
|
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return rv; |
139 |
} |
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|
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static int |
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e_start (Event ev) |
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{ |
144 |
if (ev->active) event_del (&ev->ev); |
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ev->active = 1; |
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return event_add (&ev->ev, e_tv (ev)); |
147 |
} |
148 |
|
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static int e_stop (Event ev) |
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{ |
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return ev->active |
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? (ev->active = 0), event_del (&ev->ev) |
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: 0; |
154 |
} |
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|
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static void |
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e_cb (int fd, short events, void *arg) |
158 |
{ |
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struct ev *ev = (struct ev*)arg; |
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dSP; |
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|
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ENTER; |
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SAVETMPS; |
164 |
|
165 |
if (!(ev->ev.ev_events & EV_PERSIST)) |
166 |
ev->active = 0; |
167 |
|
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PUSHMARK (SP); |
169 |
EXTEND (SP, 2); |
170 |
PUSHs (sv_2mortal (e_self (ev))); |
171 |
PUSHs (sv_2mortal (newSViv (events))); |
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PUTBACK; |
173 |
call_sv (ev->cb, G_DISCARD | G_VOID | G_EVAL); |
174 |
/*TODO: if err, call some logging function */ |
175 |
|
176 |
if (ev->interval && !ev->active) |
177 |
e_start (ev); |
178 |
|
179 |
FREETMPS; |
180 |
LEAVE; |
181 |
} |
182 |
|
183 |
///////////////////////////////////////////////////////////////////////////// |
184 |
// DNS |
185 |
|
186 |
static void |
187 |
dns_cb (int result, char type, int count, int ttl, void *addresses, void *arg) |
188 |
{ |
189 |
dSP; |
190 |
SV *cb = (SV *)arg; |
191 |
|
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ENTER; |
193 |
SAVETMPS; |
194 |
PUSHMARK (SP); |
195 |
EXTEND (SP, count + 3); |
196 |
PUSHs (sv_2mortal (newSViv (result))); |
197 |
|
198 |
if (result == DNS_ERR_NONE && ttl >= 0) |
199 |
{ |
200 |
int i; |
201 |
|
202 |
PUSHs (sv_2mortal (newSViv (type))); |
203 |
PUSHs (sv_2mortal (newSViv (ttl))); |
204 |
|
205 |
for (i = 0; i < count; ++i) |
206 |
switch (type) |
207 |
{ |
208 |
case DNS_IPv6_AAAA: |
209 |
PUSHs (sv_2mortal (newSVpvn (i * 16 + (char *)addresses, 16))); |
210 |
break; |
211 |
case DNS_IPv4_A: |
212 |
PUSHs (sv_2mortal (newSVpvn (i * 4 + (char *)addresses, 4))); |
213 |
break; |
214 |
case DNS_PTR: |
215 |
PUSHs (sv_2mortal (newSVpv (*(char **)addresses, 0))); |
216 |
break; |
217 |
} |
218 |
} |
219 |
|
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PUTBACK; |
221 |
call_sv (sv_2mortal (cb), G_DISCARD | G_VOID | G_EVAL); |
222 |
|
223 |
FREETMPS; |
224 |
LEAVE; |
225 |
} |
226 |
|
227 |
///////////////////////////////////////////////////////////////////////////// |
228 |
// XS interface functions |
229 |
|
230 |
MODULE = EV PACKAGE = EV PREFIX = event_ |
231 |
|
232 |
BOOT: |
233 |
{ |
234 |
HV *stash = gv_stashpv ("EV", 1); |
235 |
|
236 |
static const struct { |
237 |
const char *name; |
238 |
IV iv; |
239 |
} *civ, const_iv[] = { |
240 |
# define const_iv(pfx, name) { # name, (IV) pfx ## name }, |
241 |
const_iv (EV_, NONE) |
242 |
const_iv (EV_, TIMEOUT) |
243 |
const_iv (EV_, READ) |
244 |
const_iv (EV_, WRITE) |
245 |
const_iv (EV_, SIGNAL) |
246 |
const_iv (EV_, PERSIST) |
247 |
const_iv (EV, LOOP_ONCE) |
248 |
const_iv (EV, LOOP_NONBLOCK) |
249 |
const_iv (EV, BUFFER_READ) |
250 |
const_iv (EV, BUFFER_WRITE) |
251 |
const_iv (EV, BUFFER_EOF) |
252 |
const_iv (EV, BUFFER_ERROR) |
253 |
const_iv (EV, BUFFER_TIMEOUT) |
254 |
}; |
255 |
|
256 |
for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) |
257 |
newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv)); |
258 |
|
259 |
stash_base = gv_stashpv ("EV::Base" , 1); |
260 |
stash_event = gv_stashpv ("EV::Event", 1); |
261 |
} |
262 |
|
263 |
double now () |
264 |
CODE: |
265 |
RETVAL = e_now (); |
266 |
OUTPUT: |
267 |
RETVAL |
268 |
|
269 |
const char *version () |
270 |
ALIAS: |
271 |
method = 1 |
272 |
CODE: |
273 |
RETVAL = ix ? event_get_method () : event_get_version (); |
274 |
OUTPUT: |
275 |
RETVAL |
276 |
|
277 |
Base event_init () |
278 |
|
279 |
int event_priority_init (int npri) |
280 |
|
281 |
int event_dispatch () |
282 |
|
283 |
int event_loop (int flags = 0) |
284 |
|
285 |
int event_loopexit (double after = 0) |
286 |
CODE: |
287 |
{ |
288 |
struct timeval tv; |
289 |
tv_set (&tv, after); |
290 |
event_loopexit (&tv); |
291 |
} |
292 |
|
293 |
Event event (SV *cb) |
294 |
CODE: |
295 |
RETVAL = e_new (NEWSV (0, 0), 0, cb); |
296 |
OUTPUT: |
297 |
RETVAL |
298 |
|
299 |
Event io (SV *fh, short events, SV *cb) |
300 |
ALIAS: |
301 |
io_ns = 1 |
302 |
CODE: |
303 |
RETVAL = e_new (fh, events, cb); |
304 |
if (!ix) e_start (RETVAL); |
305 |
OUTPUT: |
306 |
RETVAL |
307 |
|
308 |
Event timer (double after, int repeat, SV *cb) |
309 |
ALIAS: |
310 |
timer_ns = 1 |
311 |
CODE: |
312 |
RETVAL = e_new (NEWSV (0, 0), 0, cb); |
313 |
RETVAL->timeout = after; |
314 |
RETVAL->interval = repeat; |
315 |
if (!ix) e_start (RETVAL); |
316 |
OUTPUT: |
317 |
RETVAL |
318 |
|
319 |
Event timer_abs (double at, double interval, SV *cb) |
320 |
ALIAS: |
321 |
timer_abs_ns = 1 |
322 |
CODE: |
323 |
RETVAL = e_new (NEWSV (0, 0), 0, cb); |
324 |
RETVAL->timeout = at; |
325 |
RETVAL->interval = interval; |
326 |
RETVAL->abstime = 1; |
327 |
if (!ix) e_start (RETVAL); |
328 |
OUTPUT: |
329 |
RETVAL |
330 |
|
331 |
Event signal (SV *signal, SV *cb) |
332 |
ALIAS: |
333 |
signal_ns = 1 |
334 |
CODE: |
335 |
RETVAL = e_new (signal, EV_SIGNAL | EV_PERSIST, cb); |
336 |
if (!ix) e_start (RETVAL); |
337 |
OUTPUT: |
338 |
RETVAL |
339 |
|
340 |
PROTOTYPES: DISABLE |
341 |
|
342 |
|
343 |
MODULE = EV PACKAGE = EV::Base PREFIX = event_base_ |
344 |
|
345 |
Base new () |
346 |
CODE: |
347 |
RETVAL = event_init (); |
348 |
OUTPUT: |
349 |
RETVAL |
350 |
|
351 |
int event_base_dispatch (Base base) |
352 |
|
353 |
int event_base_loop (Base base, int flags = 0) |
354 |
|
355 |
int event_base_loopexit (Base base, double after) |
356 |
CODE: |
357 |
{ |
358 |
struct timeval tv; |
359 |
tv.tv_sec = (long)after; |
360 |
tv.tv_usec = (long)(after - tv.tv_sec) * 1e6; |
361 |
event_base_loopexit (base, &tv); |
362 |
} |
363 |
|
364 |
int event_base_priority_init (Base base, int npri) |
365 |
|
366 |
void event_base_set (Base base, Event ev) |
367 |
C_ARGS: base, &ev->ev |
368 |
|
369 |
void DESTROY (Base base) |
370 |
CODE: |
371 |
/*event_base_free (base);*/ /* causes too many problems */ |
372 |
|
373 |
|
374 |
MODULE = EV PACKAGE = EV::Event PREFIX = event_ |
375 |
|
376 |
int event_priority_set (Event ev, int pri) |
377 |
C_ARGS: &ev->ev, pri |
378 |
|
379 |
int event_add (Event ev, double timeout = TIMEOUT_NONE) |
380 |
CODE: |
381 |
ev->timeout = timeout; |
382 |
ev->abstime = 0; |
383 |
RETVAL = e_start (ev); |
384 |
OUTPUT: |
385 |
RETVAL |
386 |
|
387 |
int event_start (Event ev) |
388 |
CODE: |
389 |
RETVAL = e_start (ev); |
390 |
OUTPUT: |
391 |
RETVAL |
392 |
|
393 |
int event_del (Event ev) |
394 |
ALIAS: |
395 |
stop = 0 |
396 |
CODE: |
397 |
RETVAL = e_stop (ev); |
398 |
OUTPUT: |
399 |
RETVAL |
400 |
|
401 |
void DESTROY (Event ev) |
402 |
CODE: |
403 |
e_stop (ev); |
404 |
SvREFCNT_dec (ev->cb); |
405 |
SvREFCNT_dec (ev->fh); |
406 |
|
407 |
SV *cb (Event ev, SV *new_cb = 0) |
408 |
CODE: |
409 |
RETVAL = newSVsv (ev->cb); |
410 |
if (items > 1) |
411 |
sv_setsv (ev->cb, new_cb); |
412 |
OUTPUT: |
413 |
RETVAL |
414 |
|
415 |
SV *fh (Event ev, SV *new_fh = 0) |
416 |
ALIAS: |
417 |
signal = 0 |
418 |
CODE: |
419 |
RETVAL = newSVsv (ev->fh); |
420 |
if (items > 1) |
421 |
{ |
422 |
if (ev->active) event_del (&ev->ev); |
423 |
sv_setsv (ev->fh, new_fh); |
424 |
ev->ev.ev_fd = sv_fileno (ev->fh); |
425 |
if (ev->active) event_add (&ev->ev, e_tv (ev)); |
426 |
} |
427 |
OUTPUT: |
428 |
RETVAL |
429 |
|
430 |
short events (Event ev, short new_events = EV_UNDEF) |
431 |
CODE: |
432 |
RETVAL = ev->ev.ev_events; |
433 |
if (items > 1) |
434 |
{ |
435 |
if (ev->active) event_del (&ev->ev); |
436 |
ev->ev.ev_events = new_events; |
437 |
if (ev->active) event_add (&ev->ev, e_tv (ev)); |
438 |
} |
439 |
OUTPUT: |
440 |
RETVAL |
441 |
|
442 |
double timeout (Event ev, double new_timeout = 0., int repeat = 0) |
443 |
CODE: |
444 |
RETVAL = ev->timeout; |
445 |
if (items > 1) |
446 |
{ |
447 |
if (ev->active) event_del (&ev->ev); |
448 |
ev->timeout = new_timeout; |
449 |
ev->interval = repeat; |
450 |
ev->abstime = 0; |
451 |
if (ev->active) event_add (&ev->ev, e_tv (ev)); |
452 |
} |
453 |
OUTPUT: |
454 |
RETVAL |
455 |
|
456 |
void timeout_abs (Event ev, double at, double interval = 0.) |
457 |
CODE: |
458 |
if (ev->active) event_del (&ev->ev); |
459 |
ev->timeout = at; |
460 |
ev->interval = interval; |
461 |
ev->abstime = 1; |
462 |
if (ev->active) event_add (&ev->ev, e_tv (ev)); |
463 |
|
464 |
|
465 |
MODULE = EV PACKAGE = EV::DNS PREFIX = evdns_ |
466 |
|
467 |
BOOT: |
468 |
{ |
469 |
HV *stash = gv_stashpv ("EV::DNS", 1); |
470 |
|
471 |
static const struct { |
472 |
const char *name; |
473 |
IV iv; |
474 |
} *civ, const_iv[] = { |
475 |
# define const_iv(pfx, name) { # name, (IV) pfx ## name }, |
476 |
|
477 |
const_iv (DNS_, ERR_NONE) |
478 |
const_iv (DNS_, ERR_FORMAT) |
479 |
const_iv (DNS_, ERR_SERVERFAILED) |
480 |
const_iv (DNS_, ERR_NOTEXIST) |
481 |
const_iv (DNS_, ERR_NOTIMPL) |
482 |
const_iv (DNS_, ERR_REFUSED) |
483 |
const_iv (DNS_, ERR_TRUNCATED) |
484 |
const_iv (DNS_, ERR_UNKNOWN) |
485 |
const_iv (DNS_, ERR_TIMEOUT) |
486 |
const_iv (DNS_, ERR_SHUTDOWN) |
487 |
const_iv (DNS_, IPv4_A) |
488 |
const_iv (DNS_, PTR) |
489 |
const_iv (DNS_, IPv6_AAAA) |
490 |
const_iv (DNS_, QUERY_NO_SEARCH) |
491 |
const_iv (DNS_, OPTION_SEARCH) |
492 |
const_iv (DNS_, OPTION_NAMESERVERS) |
493 |
const_iv (DNS_, OPTION_MISC) |
494 |
const_iv (DNS_, OPTIONS_ALL) |
495 |
const_iv (DNS_, NO_SEARCH) |
496 |
}; |
497 |
|
498 |
for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) |
499 |
newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv)); |
500 |
} |
501 |
|
502 |
int evdns_init () |
503 |
|
504 |
void evdns_shutdown (int fail_requests = 1) |
505 |
|
506 |
const char *evdns_err_to_string (int err) |
507 |
|
508 |
int evdns_nameserver_add (U32 address) |
509 |
|
510 |
int evdns_count_nameservers () |
511 |
|
512 |
int evdns_clear_nameservers_and_suspend () |
513 |
|
514 |
int evdns_resume () |
515 |
|
516 |
int evdns_nameserver_ip_add (char *ip_as_string) |
517 |
|
518 |
int evdns_resolve_ipv4 (const char *name, int flags, SV *cb) |
519 |
C_ARGS: name, flags, dns_cb, (void *)SvREFCNT_inc (cb) |
520 |
|
521 |
int evdns_resolve_ipv6 (const char *name, int flags, SV *cb) |
522 |
C_ARGS: name, flags, dns_cb, (void *)SvREFCNT_inc (cb) |
523 |
|
524 |
int evdns_resolve_reverse (SV *addr, int flags, SV *cb) |
525 |
ALIAS: |
526 |
evdns_resolve_reverse_ipv6 = 1 |
527 |
CODE: |
528 |
{ |
529 |
STRLEN len; |
530 |
char *data = SvPVbyte (addr, len); |
531 |
if (len != (ix ? 16 : 4)) |
532 |
croak ("ipv4/ipv6 address to resolve must be given as 4/16 byte octet string"); |
533 |
|
534 |
RETVAL = ix |
535 |
? evdns_resolve_reverse_ipv6 ((struct in6_addr *)data, flags, dns_cb, (void *)SvREFCNT_inc (cb)) |
536 |
: evdns_resolve_reverse ((struct in_addr *)data, flags, dns_cb, (void *)SvREFCNT_inc (cb)); |
537 |
} |
538 |
OUTPUT: |
539 |
RETVAL |
540 |
|
541 |
int evdns_set_option (char *option, char *val, int flags) |
542 |
|
543 |
int evdns_resolv_conf_parse (int flags, const char *filename) |
544 |
|
545 |
#ifdef MS_WINDOWS |
546 |
|
547 |
int evdns_config_windows_nameservers () |
548 |
|
549 |
#endif |
550 |
|
551 |
void evdns_search_clear () |
552 |
|
553 |
void evdns_search_add (char *domain) |
554 |
|
555 |
void evdns_search_ndots_set (int ndots) |
556 |
|