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5 | #include <poll.h> |
5 | #include <poll.h> |
6 | #include <adns.h> |
6 | #include <adns.h> |
7 | |
7 | |
8 | #include "EVAPI.h" |
8 | #include "EVAPI.h" |
9 | |
9 | |
10 | static HV *stash; |
10 | static struct pollfd *fds; |
11 | static adns_state ads; |
11 | static int nfd, mfd; |
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12 | static ev_io *iow; |
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13 | static ev_timer tw; |
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14 | static ev_idle iw; |
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15 | static ev_prepare pw; |
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16 | static struct timeval tv_now; |
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17 | static int outstanding; |
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18 | |
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19 | static void |
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20 | outstanding_inc (adns_state ads) |
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21 | { |
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22 | if (!outstanding++) |
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23 | ev_prepare_start (EV_DEFAULT, &pw); |
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24 | } |
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25 | |
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26 | static void |
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27 | outstanding_dec (adns_state ads) |
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28 | { |
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29 | --outstanding; |
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30 | } |
12 | |
31 | |
13 | struct ctx |
32 | struct ctx |
14 | { |
33 | { |
15 | SV *self; |
34 | SV *self; |
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35 | adns_state ads; |
16 | adns_query query; |
36 | adns_query query; |
17 | SV *cb; |
37 | SV *cb; |
18 | }; |
38 | }; |
19 | |
39 | |
20 | static SV * |
40 | static SV * |
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26 | |
46 | |
27 | return newRV_noinc ((SV *)av); |
47 | return newRV_noinc ((SV *)av); |
28 | } |
48 | } |
29 | |
49 | |
30 | static void |
50 | static void |
31 | process () |
51 | process (adns_state ads) |
32 | { |
52 | { |
33 | dSP; |
53 | dSP; |
34 | |
54 | |
35 | for (;;) |
55 | for (;;) |
36 | { |
56 | { |
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45 | if (r) |
65 | if (r) |
46 | break; |
66 | break; |
47 | |
67 | |
48 | c = (struct ctx *)ctx; |
68 | c = (struct ctx *)ctx; |
49 | cb = c->cb; |
69 | cb = c->cb; |
50 | c->cb = 0; |
70 | c->cb = 0; outstanding_dec (ads); |
51 | ev_unref (); |
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52 | SvREFCNT_dec (c->self); |
71 | SvREFCNT_dec (c->self); |
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72 | |
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73 | assert (cb); |
53 | |
74 | |
54 | PUSHMARK (SP); |
75 | PUSHMARK (SP); |
55 | |
76 | |
56 | EXTEND (SP, a->nrrs + 2); |
77 | EXTEND (SP, a->nrrs + 2); |
57 | PUSHs (sv_2mortal (newSViv (a->status))); |
78 | PUSHs (sv_2mortal (newSViv (a->status))); |
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207 | |
228 | |
208 | PUTBACK; |
229 | PUTBACK; |
209 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL); |
230 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL); |
210 | SPAGAIN; |
231 | SPAGAIN; |
211 | |
232 | |
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233 | if (SvTRUE (ERRSV)) |
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234 | warn ("%s", SvPV_nolen (ERRSV)); |
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235 | |
212 | SvREFCNT_dec (cb); |
236 | SvREFCNT_dec (cb); |
213 | } |
237 | } |
214 | } |
238 | } |
215 | |
239 | |
216 | static struct pollfd *fds; |
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217 | static int nfd, mfd; |
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218 | static ev_io *iow; |
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219 | static ev_timer tw; |
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220 | static ev_idle iw; |
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221 | static ev_prepare prepare_ev; |
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222 | static struct timeval tv_now; |
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223 | |
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224 | static void |
240 | static void |
225 | update_now (EV_P) |
241 | update_now (EV_P) |
226 | { |
242 | { |
227 | ev_tstamp t = ev_now (); |
243 | ev_tstamp t = ev_now (EV_A); |
228 | |
244 | |
229 | tv_now.tv_sec = (long)t; |
245 | tv_now.tv_sec = (long)t; |
230 | tv_now.tv_usec = (long)((t - (ev_tstamp)tv_now.tv_sec) * 1e6); |
246 | tv_now.tv_usec = (long)((t - (ev_tstamp)tv_now.tv_sec) * 1e6); |
231 | } |
247 | } |
232 | |
248 | |
233 | static void |
249 | static void |
234 | idle_cb (EV_P_ ev_idle *w, int revents) |
250 | idle_cb (EV_P_ ev_idle *w, int revents) |
235 | { |
251 | { |
236 | ev_idle_stop (EV_A_ w); |
252 | ev_idle_stop (EV_A, w); |
237 | } |
253 | } |
238 | |
254 | |
239 | static void |
255 | static void |
240 | timer_cb (EV_P_ ev_timer *w, int revents) |
256 | timer_cb (EV_P_ ev_timer *w, int revents) |
241 | { |
257 | { |
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258 | adns_state ads = (adns_state)w->data; |
242 | update_now (); |
259 | update_now (EV_A); |
243 | |
260 | |
244 | adns_processtimeouts (ads, &tv_now); |
261 | adns_processtimeouts (ads, &tv_now); |
245 | } |
262 | } |
246 | |
263 | |
247 | static void |
264 | static void |
248 | io_cb (EV_P_ ev_io *w, int revents) |
265 | io_cb (EV_P_ ev_io *w, int revents) |
249 | { |
266 | { |
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267 | adns_state ads = (adns_state)w->data; |
250 | update_now (EV_A); |
268 | update_now (EV_A); |
251 | |
269 | |
252 | if (revents & EV_READ ) adns_processreadable (ads, w->fd, &tv_now); |
270 | if (revents & EV_READ ) adns_processreadable (ads, w->fd, &tv_now); |
253 | if (revents & EV_WRITE) adns_processwriteable (ads, w->fd, &tv_now); |
271 | if (revents & EV_WRITE) adns_processwriteable (ads, w->fd, &tv_now); |
254 | } |
272 | } |
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257 | static void |
275 | static void |
258 | prepare_cb (EV_P_ ev_prepare *w, int revents) |
276 | prepare_cb (EV_P_ ev_prepare *w, int revents) |
259 | { |
277 | { |
260 | int i; |
278 | int i; |
261 | int timeout = 3600000; |
279 | int timeout = 3600000; |
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280 | adns_state ads = (adns_state)w->data; |
262 | |
281 | |
263 | if (ev_is_active (&tw)) |
282 | if (ev_is_active (&tw)) |
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283 | ev_timer_stop (EV_A, &tw); |
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284 | |
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285 | if (ev_is_active (&iw)) |
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286 | ev_idle_stop (EV_A, &iw); |
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287 | |
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288 | for (i = 0; i < nfd; ++i) |
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289 | ev_io_stop (EV_A, iow + i); |
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290 | |
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291 | process (ads); |
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292 | |
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293 | if (!outstanding) |
264 | { |
294 | { |
265 | ev_ref (); |
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266 | ev_timer_stop (EV_A_ &tw); |
295 | ev_prepare_stop (EV_A, w); |
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296 | return; |
267 | } |
297 | } |
268 | |
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269 | if (ev_is_active (&iw)) |
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270 | ev_idle_stop (EV_A_ &iw); |
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271 | |
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272 | for (i = 0; i < nfd; ++i) |
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273 | { |
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274 | ev_ref (); |
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275 | ev_io_stop (EV_A_ iow + i); |
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276 | } |
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277 | |
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278 | process (); |
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279 | |
298 | |
280 | update_now (EV_A); |
299 | update_now (EV_A); |
281 | |
300 | |
282 | nfd = mfd; |
301 | nfd = mfd; |
283 | |
302 | |
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288 | free (iow); iow = malloc (mfd * sizeof (ev_io)); |
307 | free (iow); iow = malloc (mfd * sizeof (ev_io)); |
289 | free (fds); fds = malloc (mfd * sizeof (struct pollfd)); |
308 | free (fds); fds = malloc (mfd * sizeof (struct pollfd)); |
290 | } |
309 | } |
291 | |
310 | |
292 | ev_timer_set (&tw, timeout * 1e-3, 0.); |
311 | ev_timer_set (&tw, timeout * 1e-3, 0.); |
293 | ev_timer_start (EV_A_ &tw); |
312 | ev_timer_start (EV_A, &tw); |
294 | ev_unref (); |
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295 | |
313 | |
296 | // create one ev_io per pollfd |
314 | // create one ev_io per pollfd |
297 | for (i = 0; i < nfd; ++i) |
315 | for (i = 0; i < nfd; ++i) |
298 | { |
316 | { |
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317 | ev_io *w = iow + i; |
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318 | |
299 | ev_io_init (iow + i, io_cb, fds [i].fd, |
319 | ev_io_init (w, io_cb, fds [i].fd, |
300 | ((fds [i].events & POLLIN ? EV_READ : 0) |
320 | ((fds [i].events & POLLIN ? EV_READ : 0) |
301 | | (fds [i].events & POLLOUT ? EV_WRITE : 0))); |
321 | | (fds [i].events & POLLOUT ? EV_WRITE : 0))); |
302 | |
322 | |
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323 | w->data = (void *)ads; |
303 | ev_io_start (EV_A_ iow + i); |
324 | ev_io_start (EV_A, w); |
304 | ev_unref (); |
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305 | } |
325 | } |
306 | } |
326 | } |
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327 | |
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328 | static HV *stash; |
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329 | static adns_state ads; |
307 | |
330 | |
308 | MODULE = EV::ADNS PACKAGE = EV::ADNS |
331 | MODULE = EV::ADNS PACKAGE = EV::ADNS |
309 | |
332 | |
310 | PROTOTYPES: ENABLE |
333 | PROTOTYPES: ENABLE |
311 | |
334 | |
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399 | for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) |
422 | for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) |
400 | newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv)); |
423 | newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv)); |
401 | |
424 | |
402 | I_EV_API ("EV::ADNS"); |
425 | I_EV_API ("EV::ADNS"); |
403 | |
426 | |
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427 | adns_init (&ads, adns_if_noenv | adns_if_noerrprint | adns_if_noserverwarn | adns_if_noautosys, 0); |
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428 | |
404 | ev_prepare_init (&prepare_ev, prepare_cb); |
429 | ev_prepare_init (&pw, prepare_cb); |
405 | ev_prepare_start (EV_DEFAULT_ &prepare_ev); |
430 | pw.data = (void *)ads; |
406 | ev_unref (); |
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407 | |
431 | |
408 | ev_init (&iw, idle_cb); ev_set_priority (&iw, EV_MINPRI); |
432 | ev_init (&iw, idle_cb); ev_set_priority (&iw, EV_MINPRI); |
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433 | iw.data = (void *)ads; |
409 | ev_init (&tw, timer_cb); |
434 | ev_init (&tw, timer_cb); |
410 | |
435 | tw.data = (void *)ads; |
411 | adns_init (&ads, adns_if_noenv | adns_if_noerrprint | adns_if_noserverwarn | adns_if_noautosys, 0); |
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412 | } |
436 | } |
413 | |
437 | |
414 | void submit (char *owner, int type, int flags, SV *cb) |
438 | void submit (char *owner, int type, int flags, SV *cb) |
415 | PPCODE: |
439 | PPCODE: |
416 | { |
440 | { |
417 | SV *csv = NEWSV (0, sizeof (struct ctx)); |
441 | SV *csv = NEWSV (0, sizeof (struct ctx)); |
418 | struct ctx *c = (struct ctx *)SvPVX (csv); |
442 | struct ctx *c = (struct ctx *)SvPVX (csv); |
419 | int r = adns_submit (ads, owner, type, flags, (void *)c, &c->query); |
443 | int r = adns_submit (ads, owner, type, flags, (void *)c, &c->query); |
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444 | |
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445 | outstanding_inc (ads); |
420 | |
446 | |
421 | if (r) |
447 | if (r) |
422 | { |
448 | { |
423 | SvREFCNT_dec (csv); |
449 | SvREFCNT_dec (csv); |
424 | errno = r; |
450 | errno = r; |
425 | XSRETURN_EMPTY; |
451 | XSRETURN_EMPTY; |
426 | } |
452 | } |
427 | else |
453 | else |
428 | { |
454 | { |
429 | ev_ref (); |
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430 | SvPOK_only (csv); |
455 | SvPOK_only (csv); |
431 | SvCUR_set (csv, sizeof (struct ctx)); |
456 | SvCUR_set (csv, sizeof (struct ctx)); |
432 | |
457 | |
433 | c->self = csv; |
458 | c->self = csv; |
434 | c->cb = newSVsv (cb); |
459 | c->cb = newSVsv (cb); |
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460 | c->ads = ads; |
435 | |
461 | |
436 | if (!ev_is_active (&iw)) |
462 | if (!ev_is_active (&iw)) |
437 | ev_idle_start (EV_A_ &iw); |
463 | ev_idle_start (EV_DEFAULT, &iw); |
438 | |
464 | |
439 | if (GIMME_V != G_VOID) |
465 | if (GIMME_V != G_VOID) |
440 | { |
466 | { |
441 | csv = sv_2mortal (newRV_inc (csv)); |
467 | csv = sv_2mortal (newRV_inc (csv)); |
442 | sv_bless (csv, stash); |
468 | sv_bless (csv, stash); |
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458 | |
484 | |
459 | c = (struct ctx *)SvPVX (SvRV (req)); |
485 | c = (struct ctx *)SvPVX (SvRV (req)); |
460 | |
486 | |
461 | if (c->cb) |
487 | if (c->cb) |
462 | { |
488 | { |
463 | ev_unref (); |
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464 | SvREFCNT_dec (c->cb); |
489 | SvREFCNT_dec (c->cb); |
465 | c->cb = 0; |
490 | c->cb = 0; outstanding_dec (c->ads); |
466 | adns_cancel (c->query); |
491 | adns_cancel (c->query); |
467 | SvREFCNT_dec (c->self); |
492 | SvREFCNT_dec (c->self); |
468 | } |
493 | } |
469 | } |
494 | } |
470 | |
495 | |