| 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 |
|
| 13 |
/* workaround for evhttp.h requiring obscure bsd headers */ |
| 14 |
#ifndef TAILQ_ENTRY |
| 15 |
#define TAILQ_ENTRY(type) \ |
| 16 |
struct { \ |
| 17 |
struct type *tqe_next; /* next element */ \ |
| 18 |
struct type **tqe_prev; /* address of previous next element */ \ |
| 19 |
} |
| 20 |
#endif /* !TAILQ_ENTRY */ |
| 21 |
#include <evhttp.h> |
| 22 |
|
| 23 |
#define EV_NONE 0 |
| 24 |
#define EV_UNDEF -1 |
| 25 |
|
| 26 |
#define TIMEOUT_NONE HUGE_VAL |
| 27 |
|
| 28 |
typedef struct event_base *Base; |
| 29 |
|
| 30 |
static HV *stash_base, *stash_event; |
| 31 |
|
| 32 |
static double tv_get (struct timeval *tv) |
| 33 |
{ |
| 34 |
return tv->tv_sec + tv->tv_usec * 1e-6; |
| 35 |
} |
| 36 |
|
| 37 |
static void tv_set (struct timeval *tv, double val) |
| 38 |
{ |
| 39 |
tv->tv_sec = (long)val; |
| 40 |
tv->tv_usec = (long)((val - (double)tv->tv_sec) * 1e6); |
| 41 |
|
| 42 |
} |
| 43 |
|
| 44 |
///////////////////////////////////////////////////////////////////////////// |
| 45 |
// Event |
| 46 |
|
| 47 |
typedef struct ev { |
| 48 |
struct event ev; |
| 49 |
SV *cb, *fh; |
| 50 |
SV *self; /* contains this struct */ |
| 51 |
double timeout; |
| 52 |
double interval; |
| 53 |
unsigned char active; |
| 54 |
unsigned char abstime; |
| 55 |
} *Event; |
| 56 |
|
| 57 |
static double |
| 58 |
e_now () |
| 59 |
{ |
| 60 |
struct timeval tv; |
| 61 |
gettimeofday (&tv, 0); |
| 62 |
|
| 63 |
return tv_get (&tv); |
| 64 |
} |
| 65 |
|
| 66 |
static void e_cb (int fd, short events, void *arg); |
| 67 |
|
| 68 |
static int sv_fileno (SV *fh) |
| 69 |
{ |
| 70 |
SvGETMAGIC (fh); |
| 71 |
|
| 72 |
if (SvROK (fh)) |
| 73 |
fh = SvRV (fh); |
| 74 |
|
| 75 |
if (SvTYPE (fh) == SVt_PVGV) |
| 76 |
return PerlIO_fileno (IoIFP (sv_2io (fh))); |
| 77 |
|
| 78 |
if (SvIOK (fh)) |
| 79 |
return SvIV (fh); |
| 80 |
|
| 81 |
return -1; |
| 82 |
} |
| 83 |
|
| 84 |
static Event |
| 85 |
e_new (SV *fh, short events, SV *cb) |
| 86 |
{ |
| 87 |
int fd = sv_fileno (fh); |
| 88 |
Event ev; |
| 89 |
SV *self = NEWSV (0, sizeof (struct ev)); |
| 90 |
SvPOK_only (self); |
| 91 |
SvCUR_set (self, sizeof (struct ev)); |
| 92 |
|
| 93 |
ev = (Event)SvPVX (self); |
| 94 |
|
| 95 |
ev->fh = newSVsv (fh); |
| 96 |
ev->cb = newSVsv (cb); |
| 97 |
ev->self = self; |
| 98 |
ev->timeout = TIMEOUT_NONE; |
| 99 |
ev->interval = 0.; |
| 100 |
ev->abstime = 0; |
| 101 |
ev->active = 0; |
| 102 |
|
| 103 |
event_set (&ev->ev, fd, events, e_cb, (void *)ev); |
| 104 |
|
| 105 |
return ev; |
| 106 |
} |
| 107 |
|
| 108 |
static struct timeval * |
| 109 |
e_tv (Event ev) |
| 110 |
{ |
| 111 |
static struct timeval tv; |
| 112 |
double to = ev->timeout; |
| 113 |
|
| 114 |
if (to == TIMEOUT_NONE) |
| 115 |
return 0; |
| 116 |
|
| 117 |
if (ev->abstime) |
| 118 |
{ |
| 119 |
double now = e_now (); |
| 120 |
|
| 121 |
if (now > to && ev->interval) |
| 122 |
ev->timeout = (to += ceil ((now - to) / ev->interval) * ev->interval); |
| 123 |
|
| 124 |
to -= now; |
| 125 |
} |
| 126 |
else if (to < 0.) |
| 127 |
to = 0.; |
| 128 |
|
| 129 |
tv_set (&tv, to); |
| 130 |
|
| 131 |
return &tv; |
| 132 |
} |
| 133 |
|
| 134 |
static SV *e_self (Event ev) |
| 135 |
{ |
| 136 |
SV *rv; |
| 137 |
|
| 138 |
if (SvOBJECT (ev->self)) |
| 139 |
rv = newRV_inc (ev->self); |
| 140 |
else |
| 141 |
{ |
| 142 |
rv = newRV_noinc (ev->self); |
| 143 |
sv_bless (rv, stash_event); |
| 144 |
SvREADONLY_on (ev->self); |
| 145 |
} |
| 146 |
|
| 147 |
return rv; |
| 148 |
} |
| 149 |
|
| 150 |
static int |
| 151 |
e_start (Event ev) |
| 152 |
{ |
| 153 |
if (ev->active) event_del (&ev->ev); |
| 154 |
ev->active = 1; |
| 155 |
return event_add (&ev->ev, e_tv (ev)); |
| 156 |
} |
| 157 |
|
| 158 |
static int e_stop (Event ev) |
| 159 |
{ |
| 160 |
return ev->active |
| 161 |
? (ev->active = 0), event_del (&ev->ev) |
| 162 |
: 0; |
| 163 |
} |
| 164 |
|
| 165 |
static void |
| 166 |
e_cb (int fd, short events, void *arg) |
| 167 |
{ |
| 168 |
struct ev *ev = (struct ev*)arg; |
| 169 |
dSP; |
| 170 |
|
| 171 |
ENTER; |
| 172 |
SAVETMPS; |
| 173 |
|
| 174 |
if (!(ev->ev.ev_events & EV_PERSIST)) |
| 175 |
ev->active = 0; |
| 176 |
|
| 177 |
PUSHMARK (SP); |
| 178 |
EXTEND (SP, 2); |
| 179 |
PUSHs (sv_2mortal (e_self (ev))); |
| 180 |
PUSHs (sv_2mortal (newSViv (events))); |
| 181 |
PUTBACK; |
| 182 |
call_sv (ev->cb, G_DISCARD | G_VOID | G_EVAL); |
| 183 |
/*TODO: if err, call some logging function */ |
| 184 |
|
| 185 |
if (ev->interval && !ev->active) |
| 186 |
e_start (ev); |
| 187 |
|
| 188 |
FREETMPS; |
| 189 |
LEAVE; |
| 190 |
} |
| 191 |
|
| 192 |
///////////////////////////////////////////////////////////////////////////// |
| 193 |
// DNS |
| 194 |
|
| 195 |
static void |
| 196 |
dns_cb (int result, char type, int count, int ttl, void *addresses, void *arg) |
| 197 |
{ |
| 198 |
dSP; |
| 199 |
SV *cb = (SV *)arg; |
| 200 |
|
| 201 |
ENTER; |
| 202 |
SAVETMPS; |
| 203 |
PUSHMARK (SP); |
| 204 |
EXTEND (SP, count + 3); |
| 205 |
PUSHs (sv_2mortal (newSViv (result))); |
| 206 |
|
| 207 |
if (result == DNS_ERR_NONE && ttl >= 0) |
| 208 |
{ |
| 209 |
int i; |
| 210 |
|
| 211 |
PUSHs (sv_2mortal (newSViv (type))); |
| 212 |
PUSHs (sv_2mortal (newSViv (ttl))); |
| 213 |
|
| 214 |
for (i = 0; i < count; ++i) |
| 215 |
switch (type) |
| 216 |
{ |
| 217 |
case DNS_IPv6_AAAA: |
| 218 |
PUSHs (sv_2mortal (newSVpvn (i * 16 + (char *)addresses, 16))); |
| 219 |
break; |
| 220 |
case DNS_IPv4_A: |
| 221 |
PUSHs (sv_2mortal (newSVpvn (i * 4 + (char *)addresses, 4))); |
| 222 |
break; |
| 223 |
case DNS_PTR: |
| 224 |
PUSHs (sv_2mortal (newSVpv (*(char **)addresses, 0))); |
| 225 |
break; |
| 226 |
} |
| 227 |
} |
| 228 |
|
| 229 |
PUTBACK; |
| 230 |
call_sv (sv_2mortal (cb), G_DISCARD | G_VOID | G_EVAL); |
| 231 |
|
| 232 |
FREETMPS; |
| 233 |
LEAVE; |
| 234 |
} |
| 235 |
|
| 236 |
///////////////////////////////////////////////////////////////////////////// |
| 237 |
// XS interface functions |
| 238 |
|
| 239 |
MODULE = EV PACKAGE = EV PREFIX = event_ |
| 240 |
|
| 241 |
BOOT: |
| 242 |
{ |
| 243 |
HV *stash = gv_stashpv ("EV", 1); |
| 244 |
|
| 245 |
static const struct { |
| 246 |
const char *name; |
| 247 |
IV iv; |
| 248 |
} *civ, const_iv[] = { |
| 249 |
# define const_iv(pfx, name) { # name, (IV) pfx ## name }, |
| 250 |
const_iv (EV_, NONE) |
| 251 |
const_iv (EV_, TIMEOUT) |
| 252 |
const_iv (EV_, READ) |
| 253 |
const_iv (EV_, WRITE) |
| 254 |
const_iv (EV_, SIGNAL) |
| 255 |
const_iv (EV_, PERSIST) |
| 256 |
const_iv (EV, LOOP_ONCE) |
| 257 |
const_iv (EV, LOOP_NONBLOCK) |
| 258 |
const_iv (EV, BUFFER_READ) |
| 259 |
const_iv (EV, BUFFER_WRITE) |
| 260 |
const_iv (EV, BUFFER_EOF) |
| 261 |
const_iv (EV, BUFFER_ERROR) |
| 262 |
const_iv (EV, BUFFER_TIMEOUT) |
| 263 |
}; |
| 264 |
|
| 265 |
for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) |
| 266 |
newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv)); |
| 267 |
|
| 268 |
stash_base = gv_stashpv ("EV::Base" , 1); |
| 269 |
stash_event = gv_stashpv ("EV::Event", 1); |
| 270 |
} |
| 271 |
|
| 272 |
double now () |
| 273 |
CODE: |
| 274 |
RETVAL = e_now (); |
| 275 |
OUTPUT: |
| 276 |
RETVAL |
| 277 |
|
| 278 |
const char *version () |
| 279 |
ALIAS: |
| 280 |
method = 1 |
| 281 |
CODE: |
| 282 |
RETVAL = ix ? event_get_method () : event_get_version (); |
| 283 |
OUTPUT: |
| 284 |
RETVAL |
| 285 |
|
| 286 |
Base event_init () |
| 287 |
|
| 288 |
int event_priority_init (int npri) |
| 289 |
|
| 290 |
int event_dispatch () |
| 291 |
|
| 292 |
int event_loop (int flags = 0) |
| 293 |
|
| 294 |
int event_loopexit (double after = 0) |
| 295 |
CODE: |
| 296 |
{ |
| 297 |
struct timeval tv; |
| 298 |
tv_set (&tv, after); |
| 299 |
event_loopexit (&tv); |
| 300 |
} |
| 301 |
|
| 302 |
Event event (SV *cb) |
| 303 |
CODE: |
| 304 |
RETVAL = e_new (NEWSV (0, 0), 0, cb); |
| 305 |
OUTPUT: |
| 306 |
RETVAL |
| 307 |
|
| 308 |
Event io (SV *fh, short events, SV *cb) |
| 309 |
ALIAS: |
| 310 |
io_ns = 1 |
| 311 |
CODE: |
| 312 |
RETVAL = e_new (fh, events, cb); |
| 313 |
if (!ix) e_start (RETVAL); |
| 314 |
OUTPUT: |
| 315 |
RETVAL |
| 316 |
|
| 317 |
Event timer (double after, int repeat, SV *cb) |
| 318 |
ALIAS: |
| 319 |
timer_ns = 1 |
| 320 |
CODE: |
| 321 |
RETVAL = e_new (NEWSV (0, 0), 0, cb); |
| 322 |
RETVAL->timeout = after; |
| 323 |
RETVAL->interval = repeat; |
| 324 |
if (!ix) e_start (RETVAL); |
| 325 |
OUTPUT: |
| 326 |
RETVAL |
| 327 |
|
| 328 |
Event timer_abs (double at, double interval, SV *cb) |
| 329 |
ALIAS: |
| 330 |
timer_abs_ns = 1 |
| 331 |
CODE: |
| 332 |
RETVAL = e_new (NEWSV (0, 0), 0, cb); |
| 333 |
RETVAL->timeout = at; |
| 334 |
RETVAL->interval = interval; |
| 335 |
RETVAL->abstime = 1; |
| 336 |
if (!ix) e_start (RETVAL); |
| 337 |
OUTPUT: |
| 338 |
RETVAL |
| 339 |
|
| 340 |
Event signal (SV *signal, SV *cb) |
| 341 |
ALIAS: |
| 342 |
signal_ns = 1 |
| 343 |
CODE: |
| 344 |
RETVAL = e_new (signal, EV_SIGNAL | EV_PERSIST, cb); |
| 345 |
if (!ix) e_start (RETVAL); |
| 346 |
OUTPUT: |
| 347 |
RETVAL |
| 348 |
|
| 349 |
PROTOTYPES: DISABLE |
| 350 |
|
| 351 |
|
| 352 |
MODULE = EV PACKAGE = EV::Base PREFIX = event_base_ |
| 353 |
|
| 354 |
Base new () |
| 355 |
CODE: |
| 356 |
RETVAL = event_init (); |
| 357 |
OUTPUT: |
| 358 |
RETVAL |
| 359 |
|
| 360 |
int event_base_dispatch (Base base) |
| 361 |
|
| 362 |
int event_base_loop (Base base, int flags = 0) |
| 363 |
|
| 364 |
int event_base_loopexit (Base base, double after) |
| 365 |
CODE: |
| 366 |
{ |
| 367 |
struct timeval tv; |
| 368 |
tv.tv_sec = (long)after; |
| 369 |
tv.tv_usec = (long)(after - tv.tv_sec) * 1e6; |
| 370 |
event_base_loopexit (base, &tv); |
| 371 |
} |
| 372 |
|
| 373 |
int event_base_priority_init (Base base, int npri) |
| 374 |
|
| 375 |
void event_base_set (Base base, Event ev) |
| 376 |
C_ARGS: base, &ev->ev |
| 377 |
|
| 378 |
void DESTROY (Base base) |
| 379 |
CODE: |
| 380 |
/*event_base_free (base);*/ /* causes too many problems */ |
| 381 |
|
| 382 |
|
| 383 |
MODULE = EV PACKAGE = EV::Event PREFIX = event_ |
| 384 |
|
| 385 |
int event_priority_set (Event ev, int pri) |
| 386 |
C_ARGS: &ev->ev, pri |
| 387 |
|
| 388 |
int event_add (Event ev, double timeout = TIMEOUT_NONE) |
| 389 |
CODE: |
| 390 |
ev->timeout = timeout; |
| 391 |
ev->abstime = 0; |
| 392 |
RETVAL = e_start (ev); |
| 393 |
OUTPUT: |
| 394 |
RETVAL |
| 395 |
|
| 396 |
int event_start (Event ev) |
| 397 |
CODE: |
| 398 |
RETVAL = e_start (ev); |
| 399 |
OUTPUT: |
| 400 |
RETVAL |
| 401 |
|
| 402 |
int event_del (Event ev) |
| 403 |
ALIAS: |
| 404 |
stop = 0 |
| 405 |
CODE: |
| 406 |
RETVAL = e_stop (ev); |
| 407 |
OUTPUT: |
| 408 |
RETVAL |
| 409 |
|
| 410 |
void DESTROY (Event ev) |
| 411 |
CODE: |
| 412 |
e_stop (ev); |
| 413 |
SvREFCNT_dec (ev->cb); |
| 414 |
SvREFCNT_dec (ev->fh); |
| 415 |
|
| 416 |
SV *cb (Event ev, SV *new_cb = 0) |
| 417 |
CODE: |
| 418 |
RETVAL = newSVsv (ev->cb); |
| 419 |
if (items > 1) |
| 420 |
sv_setsv (ev->cb, new_cb); |
| 421 |
OUTPUT: |
| 422 |
RETVAL |
| 423 |
|
| 424 |
SV *fh (Event ev, SV *new_fh = 0) |
| 425 |
ALIAS: |
| 426 |
signal = 0 |
| 427 |
CODE: |
| 428 |
RETVAL = newSVsv (ev->fh); |
| 429 |
if (items > 1) |
| 430 |
{ |
| 431 |
if (ev->active) event_del (&ev->ev); |
| 432 |
sv_setsv (ev->fh, new_fh); |
| 433 |
ev->ev.ev_fd = sv_fileno (ev->fh); |
| 434 |
if (ev->active) event_add (&ev->ev, e_tv (ev)); |
| 435 |
} |
| 436 |
OUTPUT: |
| 437 |
RETVAL |
| 438 |
|
| 439 |
short events (Event ev, short new_events = EV_UNDEF) |
| 440 |
CODE: |
| 441 |
RETVAL = ev->ev.ev_events; |
| 442 |
if (items > 1) |
| 443 |
{ |
| 444 |
if (ev->active) event_del (&ev->ev); |
| 445 |
ev->ev.ev_events = new_events; |
| 446 |
if (ev->active) event_add (&ev->ev, e_tv (ev)); |
| 447 |
} |
| 448 |
OUTPUT: |
| 449 |
RETVAL |
| 450 |
|
| 451 |
double timeout (Event ev, double new_timeout = 0., int repeat = 0) |
| 452 |
CODE: |
| 453 |
RETVAL = ev->timeout; |
| 454 |
if (items > 1) |
| 455 |
{ |
| 456 |
if (ev->active) event_del (&ev->ev); |
| 457 |
ev->timeout = new_timeout; |
| 458 |
ev->interval = repeat; |
| 459 |
ev->abstime = 0; |
| 460 |
if (ev->active) event_add (&ev->ev, e_tv (ev)); |
| 461 |
} |
| 462 |
OUTPUT: |
| 463 |
RETVAL |
| 464 |
|
| 465 |
void timeout_abs (Event ev, double at, double interval = 0.) |
| 466 |
CODE: |
| 467 |
if (ev->active) event_del (&ev->ev); |
| 468 |
ev->timeout = at; |
| 469 |
ev->interval = interval; |
| 470 |
ev->abstime = 1; |
| 471 |
if (ev->active) event_add (&ev->ev, e_tv (ev)); |
| 472 |
|
| 473 |
|
| 474 |
MODULE = EV PACKAGE = EV::DNS PREFIX = evdns_ |
| 475 |
|
| 476 |
BOOT: |
| 477 |
{ |
| 478 |
HV *stash = gv_stashpv ("EV::DNS", 1); |
| 479 |
|
| 480 |
static const struct { |
| 481 |
const char *name; |
| 482 |
IV iv; |
| 483 |
} *civ, const_iv[] = { |
| 484 |
# define const_iv(pfx, name) { # name, (IV) pfx ## name }, |
| 485 |
|
| 486 |
const_iv (DNS_, ERR_NONE) |
| 487 |
const_iv (DNS_, ERR_FORMAT) |
| 488 |
const_iv (DNS_, ERR_SERVERFAILED) |
| 489 |
const_iv (DNS_, ERR_NOTEXIST) |
| 490 |
const_iv (DNS_, ERR_NOTIMPL) |
| 491 |
const_iv (DNS_, ERR_REFUSED) |
| 492 |
const_iv (DNS_, ERR_TRUNCATED) |
| 493 |
const_iv (DNS_, ERR_UNKNOWN) |
| 494 |
const_iv (DNS_, ERR_TIMEOUT) |
| 495 |
const_iv (DNS_, ERR_SHUTDOWN) |
| 496 |
const_iv (DNS_, IPv4_A) |
| 497 |
const_iv (DNS_, PTR) |
| 498 |
const_iv (DNS_, IPv6_AAAA) |
| 499 |
const_iv (DNS_, QUERY_NO_SEARCH) |
| 500 |
const_iv (DNS_, OPTION_SEARCH) |
| 501 |
const_iv (DNS_, OPTION_NAMESERVERS) |
| 502 |
const_iv (DNS_, OPTION_MISC) |
| 503 |
const_iv (DNS_, OPTIONS_ALL) |
| 504 |
const_iv (DNS_, NO_SEARCH) |
| 505 |
}; |
| 506 |
|
| 507 |
for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) |
| 508 |
newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv)); |
| 509 |
} |
| 510 |
|
| 511 |
int evdns_init () |
| 512 |
|
| 513 |
void evdns_shutdown (int fail_requests = 1) |
| 514 |
|
| 515 |
const char *evdns_err_to_string (int err) |
| 516 |
|
| 517 |
int evdns_nameserver_add (U32 address) |
| 518 |
|
| 519 |
int evdns_count_nameservers () |
| 520 |
|
| 521 |
int evdns_clear_nameservers_and_suspend () |
| 522 |
|
| 523 |
int evdns_resume () |
| 524 |
|
| 525 |
int evdns_nameserver_ip_add (char *ip_as_string) |
| 526 |
|
| 527 |
int evdns_resolve_ipv4 (const char *name, int flags, SV *cb) |
| 528 |
C_ARGS: name, flags, dns_cb, (void *)SvREFCNT_inc (cb) |
| 529 |
|
| 530 |
int evdns_resolve_ipv6 (const char *name, int flags, SV *cb) |
| 531 |
C_ARGS: name, flags, dns_cb, (void *)SvREFCNT_inc (cb) |
| 532 |
|
| 533 |
int evdns_resolve_reverse (SV *addr, int flags, SV *cb) |
| 534 |
ALIAS: |
| 535 |
evdns_resolve_reverse_ipv6 = 1 |
| 536 |
CODE: |
| 537 |
{ |
| 538 |
STRLEN len; |
| 539 |
char *data = SvPVbyte (addr, len); |
| 540 |
if (len != (ix ? 16 : 4)) |
| 541 |
croak ("ipv4/ipv6 address to resolve must be given as 4/16 byte octet string"); |
| 542 |
|
| 543 |
RETVAL = ix |
| 544 |
? evdns_resolve_reverse_ipv6 ((struct in6_addr *)data, flags, dns_cb, (void *)SvREFCNT_inc (cb)) |
| 545 |
: evdns_resolve_reverse ((struct in_addr *)data, flags, dns_cb, (void *)SvREFCNT_inc (cb)); |
| 546 |
} |
| 547 |
OUTPUT: |
| 548 |
RETVAL |
| 549 |
|
| 550 |
int evdns_set_option (char *option, char *val, int flags) |
| 551 |
|
| 552 |
int evdns_resolv_conf_parse (int flags, const char *filename) |
| 553 |
|
| 554 |
#ifdef MS_WINDOWS |
| 555 |
|
| 556 |
int evdns_config_windows_nameservers () |
| 557 |
|
| 558 |
#endif |
| 559 |
|
| 560 |
void evdns_search_clear () |
| 561 |
|
| 562 |
void evdns_search_add (char *domain) |
| 563 |
|
| 564 |
void evdns_search_ndots_set (int ndots) |
| 565 |
|
