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 |
|
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static int sv_fileno (SV *fh) |
60 |
{ |
61 |
if (fh) |
62 |
{ |
63 |
SvGETMAGIC (fh); |
64 |
|
65 |
if (SvROK (fh)) |
66 |
fh = SvRV (fh); |
67 |
|
68 |
if (SvTYPE (fh) == SVt_PVGV) |
69 |
return PerlIO_fileno (IoIFP (sv_2io (fh))); |
70 |
|
71 |
if (SvIOK (fh)) |
72 |
return SvIV (fh); |
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} |
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|
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return -1; |
76 |
} |
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|
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static Event |
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e_new (SV *fh, short events, SV *cb) |
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{ |
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int fd = sv_fileno (fh); |
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Event ev; |
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SV *self = NEWSV (0, sizeof (struct ev)); |
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SvPOK_only (self); |
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SvCUR_set (self, sizeof (struct ev)); |
86 |
|
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ev = (Event)SvPVX (self); |
88 |
|
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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; |
110 |
|
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if (ev->abstime) |
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{ |
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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); |
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|
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to -= now; |
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} |
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else if (to < 0.) |
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to = 0.; |
122 |
|
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tv_set (&tv, to); |
124 |
|
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return &tv; |
126 |
} |
127 |
|
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static SV *e_self (Event ev) |
129 |
{ |
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SV *rv; |
131 |
|
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if (SvOBJECT (ev->self)) |
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rv = newRV_inc (ev->self); |
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else |
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{ |
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rv = newRV_noinc (ev->self); |
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sv_bless (rv, stash_event); |
138 |
SvREADONLY_on (ev->self); |
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} |
140 |
|
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return rv; |
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} |
143 |
|
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static int |
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e_start (Event ev) |
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{ |
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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)); |
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} |
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|
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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; |
157 |
} |
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|
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static void |
160 |
e_cb (int fd, short events, void *arg) |
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{ |
162 |
struct ev *ev = (struct ev*)arg; |
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dSP; |
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|
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ENTER; |
166 |
SAVETMPS; |
167 |
|
168 |
if (!(ev->ev.ev_events & EV_PERSIST)) |
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ev->active = 0; |
170 |
|
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PUSHMARK (SP); |
172 |
EXTEND (SP, 2); |
173 |
PUSHs (sv_2mortal (e_self (ev))); |
174 |
PUSHs (sv_2mortal (newSViv (events))); |
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PUTBACK; |
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call_sv (ev->cb, G_DISCARD | G_VOID | G_EVAL); |
177 |
/*TODO: if err, call some logging function */ |
178 |
|
179 |
if (ev->interval && !ev->active) |
180 |
e_start (ev); |
181 |
|
182 |
FREETMPS; |
183 |
LEAVE; |
184 |
} |
185 |
|
186 |
///////////////////////////////////////////////////////////////////////////// |
187 |
// DNS |
188 |
|
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static void |
190 |
dns_cb (int result, char type, int count, int ttl, void *addresses, void *arg) |
191 |
{ |
192 |
dSP; |
193 |
SV *cb = (SV *)arg; |
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|
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ENTER; |
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SAVETMPS; |
197 |
PUSHMARK (SP); |
198 |
EXTEND (SP, count + 3); |
199 |
PUSHs (sv_2mortal (newSViv (result))); |
200 |
|
201 |
if (result == DNS_ERR_NONE && ttl >= 0) |
202 |
{ |
203 |
int i; |
204 |
|
205 |
PUSHs (sv_2mortal (newSViv (type))); |
206 |
PUSHs (sv_2mortal (newSViv (ttl))); |
207 |
|
208 |
for (i = 0; i < count; ++i) |
209 |
switch (type) |
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{ |
211 |
case DNS_IPv6_AAAA: |
212 |
PUSHs (sv_2mortal (newSVpvn (i * 16 + (char *)addresses, 16))); |
213 |
break; |
214 |
case DNS_IPv4_A: |
215 |
PUSHs (sv_2mortal (newSVpvn (i * 4 + (char *)addresses, 4))); |
216 |
break; |
217 |
case DNS_PTR: |
218 |
PUSHs (sv_2mortal (newSVpv (*(char **)addresses, 0))); |
219 |
break; |
220 |
} |
221 |
} |
222 |
|
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PUTBACK; |
224 |
call_sv (sv_2mortal (cb), G_DISCARD | G_VOID | G_EVAL); |
225 |
|
226 |
FREETMPS; |
227 |
LEAVE; |
228 |
} |
229 |
|
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///////////////////////////////////////////////////////////////////////////// |
231 |
// XS interface functions |
232 |
|
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MODULE = EV PACKAGE = EV PREFIX = event_ |
234 |
|
235 |
BOOT: |
236 |
{ |
237 |
HV *stash = gv_stashpv ("EV", 1); |
238 |
|
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static const struct { |
240 |
const char *name; |
241 |
IV iv; |
242 |
} *civ, const_iv[] = { |
243 |
# define const_iv(pfx, name) { # name, (IV) pfx ## name }, |
244 |
const_iv (EV_, NONE) |
245 |
const_iv (EV_, TIMEOUT) |
246 |
const_iv (EV_, READ) |
247 |
const_iv (EV_, WRITE) |
248 |
const_iv (EV_, SIGNAL) |
249 |
const_iv (EV_, PERSIST) |
250 |
const_iv (EV, LOOP_ONCE) |
251 |
const_iv (EV, LOOP_NONBLOCK) |
252 |
const_iv (EV, BUFFER_READ) |
253 |
const_iv (EV, BUFFER_WRITE) |
254 |
const_iv (EV, BUFFER_EOF) |
255 |
const_iv (EV, BUFFER_ERROR) |
256 |
const_iv (EV, BUFFER_TIMEOUT) |
257 |
}; |
258 |
|
259 |
for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) |
260 |
newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv)); |
261 |
|
262 |
stash_base = gv_stashpv ("EV::Base" , 1); |
263 |
stash_event = gv_stashpv ("EV::Event", 1); |
264 |
} |
265 |
|
266 |
double now () |
267 |
CODE: |
268 |
RETVAL = e_now (); |
269 |
OUTPUT: |
270 |
RETVAL |
271 |
|
272 |
const char *version () |
273 |
ALIAS: |
274 |
method = 1 |
275 |
CODE: |
276 |
RETVAL = ix ? event_get_method () : event_get_version (); |
277 |
OUTPUT: |
278 |
RETVAL |
279 |
|
280 |
Base event_init () |
281 |
|
282 |
int event_priority_init (int npri) |
283 |
|
284 |
int event_dispatch () |
285 |
|
286 |
int event_loop (int flags = 0) |
287 |
|
288 |
int event_loopexit (double after) |
289 |
CODE: |
290 |
{ |
291 |
struct timeval tv; |
292 |
tv_set (&tv, after); |
293 |
event_loopexit (&tv); |
294 |
} |
295 |
|
296 |
Event event (SV *cb) |
297 |
CODE: |
298 |
RETVAL = e_new (0, 0, cb); |
299 |
OUTPUT: |
300 |
RETVAL |
301 |
|
302 |
Event io (SV *fh, short events, SV *cb) |
303 |
ALIAS: |
304 |
io_ns = 1 |
305 |
CODE: |
306 |
RETVAL = e_new (fh, events, cb); |
307 |
if (!ix) e_start (RETVAL); |
308 |
OUTPUT: |
309 |
RETVAL |
310 |
|
311 |
Event timer (double after, int repeat, SV *cb) |
312 |
ALIAS: |
313 |
timer_ns = 1 |
314 |
CODE: |
315 |
RETVAL = e_new (0, 0, cb); |
316 |
RETVAL->timeout = after; |
317 |
RETVAL->interval = repeat; |
318 |
if (!ix) e_start (RETVAL); |
319 |
OUTPUT: |
320 |
RETVAL |
321 |
|
322 |
Event timer_abs (double at, double interval, SV *cb) |
323 |
ALIAS: |
324 |
timer_abs_ns = 1 |
325 |
CODE: |
326 |
RETVAL = e_new (0, 0, cb); |
327 |
RETVAL->timeout = at; |
328 |
RETVAL->interval = interval; |
329 |
RETVAL->abstime = 1; |
330 |
if (!ix) e_start (RETVAL); |
331 |
OUTPUT: |
332 |
RETVAL |
333 |
|
334 |
Event signal (SV *signal, SV *cb) |
335 |
ALIAS: |
336 |
signal_ns = 1 |
337 |
CODE: |
338 |
RETVAL = e_new (signal, EV_SIGNAL | EV_PERSIST, cb); |
339 |
if (!ix) e_start (RETVAL); |
340 |
OUTPUT: |
341 |
RETVAL |
342 |
|
343 |
PROTOTYPES: DISABLE |
344 |
|
345 |
|
346 |
MODULE = EV PACKAGE = EV::Base PREFIX = event_base_ |
347 |
|
348 |
Base new () |
349 |
CODE: |
350 |
RETVAL = event_init (); |
351 |
OUTPUT: |
352 |
RETVAL |
353 |
|
354 |
int event_base_dispatch (Base base) |
355 |
|
356 |
int event_base_loop (Base base, int flags = 0) |
357 |
|
358 |
int event_base_loopexit (Base base, double after) |
359 |
CODE: |
360 |
{ |
361 |
struct timeval tv; |
362 |
tv.tv_sec = (long)after; |
363 |
tv.tv_usec = (long)(after - tv.tv_sec) * 1e6; |
364 |
event_base_loopexit (base, &tv); |
365 |
} |
366 |
|
367 |
int event_base_priority_init (Base base, int npri) |
368 |
|
369 |
void event_base_set (Base base, Event ev) |
370 |
C_ARGS: base, &ev->ev |
371 |
|
372 |
void DESTROY (Base base) |
373 |
CODE: |
374 |
/*event_base_free (base);*/ /* causes too many problems */ |
375 |
|
376 |
|
377 |
MODULE = EV PACKAGE = EV::Event PREFIX = event_ |
378 |
|
379 |
int event_priority_set (Event ev, int pri) |
380 |
C_ARGS: &ev->ev, pri |
381 |
|
382 |
int event_add (Event ev, double timeout = TIMEOUT_NONE) |
383 |
CODE: |
384 |
ev->timeout = timeout; |
385 |
ev->abstime = 0; |
386 |
RETVAL = e_start (ev); |
387 |
OUTPUT: |
388 |
RETVAL |
389 |
|
390 |
int event_start (Event ev) |
391 |
CODE: |
392 |
RETVAL = e_start (ev); |
393 |
OUTPUT: |
394 |
RETVAL |
395 |
|
396 |
int event_del (Event ev) |
397 |
ALIAS: |
398 |
stop = 0 |
399 |
CODE: |
400 |
RETVAL = e_stop (ev); |
401 |
OUTPUT: |
402 |
RETVAL |
403 |
|
404 |
void DESTROY (Event ev) |
405 |
CODE: |
406 |
e_stop (ev); |
407 |
SvREFCNT_dec (ev->cb); |
408 |
SvREFCNT_dec (ev->fh); |
409 |
|
410 |
void cb (Event ev, SV *new_cb) |
411 |
CODE: |
412 |
sv_setsv (ev->cb, new_cb); |
413 |
|
414 |
SV *fh (Event ev, SV *new_fh = 0) |
415 |
ALIAS: |
416 |
signal = 0 |
417 |
CODE: |
418 |
RETVAL = newSVsv (ev->fh); |
419 |
if (items > 1) |
420 |
{ |
421 |
if (ev->active) event_del (&ev->ev); |
422 |
sv_setsv (ev->fh, new_fh); |
423 |
ev->ev.ev_fd = sv_fileno (ev->fh); |
424 |
if (ev->active) event_add (&ev->ev, e_tv (ev)); |
425 |
} |
426 |
OUTPUT: |
427 |
RETVAL |
428 |
|
429 |
short events (Event ev, short new_events = EV_UNDEF) |
430 |
CODE: |
431 |
RETVAL = ev->ev.ev_events; |
432 |
if (items > 1) |
433 |
{ |
434 |
if (ev->active) event_del (&ev->ev); |
435 |
ev->ev.ev_events = new_events; |
436 |
if (ev->active) event_add (&ev->ev, e_tv (ev)); |
437 |
} |
438 |
OUTPUT: |
439 |
RETVAL |
440 |
|
441 |
double timeout (Event ev, double new_timeout = 0., int repeat = 0) |
442 |
CODE: |
443 |
RETVAL = ev->timeout; |
444 |
if (items > 1) |
445 |
{ |
446 |
if (ev->active) event_del (&ev->ev); |
447 |
ev->timeout = new_timeout; |
448 |
ev->interval = repeat; |
449 |
ev->abstime = 0; |
450 |
if (ev->active) event_add (&ev->ev, e_tv (ev)); |
451 |
} |
452 |
OUTPUT: |
453 |
RETVAL |
454 |
|
455 |
void timeout_abs (Event ev, double at, double interval = 0.) |
456 |
CODE: |
457 |
if (ev->active) event_del (&ev->ev); |
458 |
ev->timeout = at; |
459 |
ev->interval = interval; |
460 |
ev->abstime = 1; |
461 |
if (ev->active) event_add (&ev->ev, e_tv (ev)); |
462 |
|
463 |
|
464 |
MODULE = EV PACKAGE = EV::DNS PREFIX = evdns_ |
465 |
|
466 |
BOOT: |
467 |
{ |
468 |
HV *stash = gv_stashpv ("EV::DNS", 1); |
469 |
|
470 |
static const struct { |
471 |
const char *name; |
472 |
IV iv; |
473 |
} *civ, const_iv[] = { |
474 |
# define const_iv(pfx, name) { # name, (IV) pfx ## name }, |
475 |
|
476 |
const_iv (DNS_, ERR_NONE) |
477 |
const_iv (DNS_, ERR_FORMAT) |
478 |
const_iv (DNS_, ERR_SERVERFAILED) |
479 |
const_iv (DNS_, ERR_NOTEXIST) |
480 |
const_iv (DNS_, ERR_NOTIMPL) |
481 |
const_iv (DNS_, ERR_REFUSED) |
482 |
const_iv (DNS_, ERR_TRUNCATED) |
483 |
const_iv (DNS_, ERR_UNKNOWN) |
484 |
const_iv (DNS_, ERR_TIMEOUT) |
485 |
const_iv (DNS_, ERR_SHUTDOWN) |
486 |
const_iv (DNS_, IPv4_A) |
487 |
const_iv (DNS_, PTR) |
488 |
const_iv (DNS_, IPv6_AAAA) |
489 |
const_iv (DNS_, QUERY_NO_SEARCH) |
490 |
const_iv (DNS_, OPTION_SEARCH) |
491 |
const_iv (DNS_, OPTION_NAMESERVERS) |
492 |
const_iv (DNS_, OPTION_MISC) |
493 |
const_iv (DNS_, OPTIONS_ALL) |
494 |
const_iv (DNS_, NO_SEARCH) |
495 |
}; |
496 |
|
497 |
for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) |
498 |
newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv)); |
499 |
} |
500 |
|
501 |
int evdns_init () |
502 |
|
503 |
void evdns_shutdown (int fail_requests = 1) |
504 |
|
505 |
const char *evdns_err_to_string (int err) |
506 |
|
507 |
int evdns_nameserver_add (U32 address) |
508 |
|
509 |
int evdns_count_nameservers () |
510 |
|
511 |
int evdns_clear_nameservers_and_suspend () |
512 |
|
513 |
int evdns_resume () |
514 |
|
515 |
int evdns_nameserver_ip_add (char *ip_as_string) |
516 |
|
517 |
int evdns_resolve_ipv4 (const char *name, int flags, SV *cb) |
518 |
C_ARGS: name, flags, dns_cb, (void *)SvREFCNT_inc (cb) |
519 |
|
520 |
int evdns_resolve_ipv6 (const char *name, int flags, SV *cb) |
521 |
C_ARGS: name, flags, dns_cb, (void *)SvREFCNT_inc (cb) |
522 |
|
523 |
int evdns_resolve_reverse (SV *addr, int flags, SV *cb) |
524 |
ALIAS: |
525 |
evdns_resolve_reverse_ipv6 = 1 |
526 |
CODE: |
527 |
{ |
528 |
STRLEN len; |
529 |
char *data = SvPVbyte (addr, len); |
530 |
if (len != (ix ? 16 : 4)) |
531 |
croak ("ipv4/ipv6 address to resolve must be given as 4/16 byte octet string"); |
532 |
|
533 |
RETVAL = ix |
534 |
? evdns_resolve_reverse_ipv6 ((struct in6_addr *)data, flags, dns_cb, (void *)SvREFCNT_inc (cb)) |
535 |
: evdns_resolve_reverse ((struct in_addr *)data, flags, dns_cb, (void *)SvREFCNT_inc (cb)); |
536 |
} |
537 |
OUTPUT: |
538 |
RETVAL |
539 |
|
540 |
int evdns_set_option (char *option, char *val, int flags) |
541 |
|
542 |
int evdns_resolv_conf_parse (int flags, const char *filename) |
543 |
|
544 |
#ifdef MS_WINDOWS |
545 |
|
546 |
int evdns_config_windows_nameservers () |
547 |
|
548 |
#endif |
549 |
|
550 |
void evdns_search_clear () |
551 |
|
552 |
void evdns_search_add (char *domain) |
553 |
|
554 |
void evdns_search_ndots_set (int ndots) |
555 |
|