… | |
… | |
4 | /* WARNING |
4 | /* WARNING |
5 | * This header file is a shared resource between many modules. |
5 | * This header file is a shared resource between many modules. |
6 | */ |
6 | */ |
7 | |
7 | |
8 | #include <signal.h> |
8 | #include <signal.h> |
|
|
9 | #include <errno.h> |
9 | |
10 | |
10 | #ifndef _WIN32 |
11 | #ifndef _WIN32 |
11 | # include <poll.h> |
12 | # include <poll.h> |
12 | #endif |
13 | #endif |
13 | |
14 | |
… | |
… | |
19 | (PERL_REVISION > (a) \ |
20 | (PERL_REVISION > (a) \ |
20 | || (PERL_REVISION == (a) \ |
21 | || (PERL_REVISION == (a) \ |
21 | && (PERL_VERSION > (b) \ |
22 | && (PERL_VERSION > (b) \ |
22 | || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c))))) |
23 | || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c))))) |
23 | |
24 | |
|
|
25 | #ifndef PERL_MAGIC_ext |
|
|
26 | # define PERL_MAGIC_ext '~' |
|
|
27 | #endif |
|
|
28 | |
24 | #if !PERL_VERSION_ATLEAST (5,6,0) |
29 | #if !PERL_VERSION_ATLEAST (5,6,0) |
25 | # ifndef PL_ppaddr |
30 | # ifndef PL_ppaddr |
26 | # define PL_ppaddr ppaddr |
31 | # define PL_ppaddr ppaddr |
27 | # endif |
32 | # endif |
28 | # ifndef call_sv |
33 | # ifndef call_sv |
… | |
… | |
193 | S_GENSUB_ARG = arg; |
198 | S_GENSUB_ARG = arg; |
194 | |
199 | |
195 | return newRV_noinc ((SV *)cv); |
200 | return newRV_noinc ((SV *)cv); |
196 | } |
201 | } |
197 | |
202 | |
|
|
203 | /*****************************************************************************/ |
198 | /** portable pipe/socketpair */ |
204 | /* portable pipe/socketpair */ |
199 | |
205 | |
200 | #ifdef USE_SOCKETS_AS_HANDLES |
206 | #ifdef USE_SOCKETS_AS_HANDLES |
201 | # define S_TO_SOCKET(x) (win32_get_osfhandle (x)) |
207 | # define S_TO_HANDLE(x) ((HANDLE)win32_get_osfhandle (x)) |
202 | #else |
208 | #else |
203 | # define S_TO_SOCKET(x) (x) |
209 | # define S_TO_HANDLE(x) ((HANDLE)x) |
204 | #endif |
210 | #endif |
205 | |
211 | |
206 | #ifdef _WIN32 |
212 | #ifdef _WIN32 |
207 | /* taken almost verbatim from libev's ev_win32.c */ |
213 | /* taken almost verbatim from libev's ev_win32.c */ |
208 | /* oh, the humanity! */ |
214 | /* oh, the humanity! */ |
209 | static int |
215 | static int |
210 | s_pipe (int filedes [2]) |
216 | s_pipe (int filedes [2]) |
211 | { |
217 | { |
|
|
218 | dTHX; |
|
|
219 | |
212 | struct sockaddr_in addr = { 0 }; |
220 | struct sockaddr_in addr = { 0 }; |
213 | int addr_size = sizeof (addr); |
221 | int addr_size = sizeof (addr); |
214 | struct sockaddr_in adr2; |
222 | struct sockaddr_in adr2; |
215 | int adr2_size = sizeof (adr2); |
223 | int adr2_size = sizeof (adr2); |
216 | SOCKET listener; |
224 | SOCKET listener; |
… | |
… | |
291 | #define s_socketpair(domain,type,protocol,filedes) s_pipe (filedes) |
299 | #define s_socketpair(domain,type,protocol,filedes) s_pipe (filedes) |
292 | |
300 | |
293 | static int |
301 | static int |
294 | s_fd_blocking (int fd, int blocking) |
302 | s_fd_blocking (int fd, int blocking) |
295 | { |
303 | { |
296 | blocking = !blocking; |
304 | u_long nonblocking = !blocking; |
297 | |
305 | |
298 | return ioctlsocket (S_TO_SOCKET (fd), FIONBIO, &blocking); |
306 | return ioctlsocket ((SOCKET)S_TO_HANDLE (fd), FIONBIO, &nonblocking); |
299 | } |
307 | } |
300 | |
308 | |
301 | #define s_fd_prepare(fd) s_fd_blocking (fd, 0) |
309 | #define s_fd_prepare(fd) s_fd_blocking (fd, 0) |
302 | |
310 | |
303 | #else |
311 | #else |
… | |
… | |
335 | #endif |
343 | #endif |
336 | |
344 | |
337 | typedef struct { |
345 | typedef struct { |
338 | int fd[2]; /* read, write fd, might be equal */ |
346 | int fd[2]; /* read, write fd, might be equal */ |
339 | int len; /* write length (1 pipe/socket, 8 eventfd) */ |
347 | int len; /* write length (1 pipe/socket, 8 eventfd) */ |
340 | volatile sig_atomic_t sent; |
|
|
341 | } s_epipe; |
348 | } s_epipe; |
342 | |
349 | |
343 | static int |
350 | static int |
344 | s_epipe_new (s_epipe *epp) |
351 | s_epipe_new (s_epipe *epp) |
345 | { |
352 | { |
… | |
… | |
358 | return -1; |
365 | return -1; |
359 | |
366 | |
360 | if (s_fd_prepare (ep.fd [0]) |
367 | if (s_fd_prepare (ep.fd [0]) |
361 | || s_fd_prepare (ep.fd [1])) |
368 | || s_fd_prepare (ep.fd [1])) |
362 | { |
369 | { |
|
|
370 | dTHX; |
|
|
371 | |
363 | close (ep.fd [0]); |
372 | close (ep.fd [0]); |
364 | close (ep.fd [1]); |
373 | close (ep.fd [1]); |
365 | return -1; |
374 | return -1; |
366 | } |
375 | } |
367 | |
376 | |
368 | ep.len = 1; |
377 | ep.len = 1; |
369 | } |
378 | } |
370 | |
379 | |
371 | ep.sent = 0; |
|
|
372 | *epp = ep; |
380 | *epp = ep; |
373 | return 0; |
381 | return 0; |
374 | } |
382 | } |
375 | |
383 | |
376 | static void |
384 | static void |
377 | s_epipe_destroy (s_epipe *epp) |
385 | s_epipe_destroy (s_epipe *epp) |
378 | { |
386 | { |
|
|
387 | dTHX; |
|
|
388 | |
379 | close (epp->fd [0]); |
389 | close (epp->fd [0]); |
380 | |
390 | |
381 | if (epp->fd [1] != epp->fd [0]) |
391 | if (epp->fd [1] != epp->fd [0]) |
382 | close (epp->fd [1]); |
392 | close (epp->fd [1]); |
383 | |
393 | |
… | |
… | |
385 | } |
395 | } |
386 | |
396 | |
387 | static void |
397 | static void |
388 | s_epipe_signal (s_epipe *epp) |
398 | s_epipe_signal (s_epipe *epp) |
389 | { |
399 | { |
390 | if (epp->sent) |
|
|
391 | return; |
|
|
392 | |
|
|
393 | epp->sent = 1; |
|
|
394 | #ifdef _WIN32 |
400 | #ifdef _WIN32 |
395 | send (epp->fd [1], epp, 1); |
401 | /* perl overrides send with a function that crashes in other threads. |
|
|
402 | * unfortunately, it overrides it with an argument-less macro, so |
|
|
403 | * there is no way to force usage of the real send function. |
|
|
404 | * incompetent windows programmers - is this redundant? |
|
|
405 | */ |
|
|
406 | DWORD dummy; |
|
|
407 | WriteFile (S_TO_HANDLE (epp->fd [1]), (LPCVOID)&dummy, 1, &dummy, 0); |
396 | #else |
408 | #else |
397 | static uint64_t counter = 1; |
409 | static uint64_t counter = 1; |
|
|
410 | /* some modules accept fd's from outside, support eventfd here */ |
|
|
411 | if (write (epp->fd [1], &counter, epp->len) < 0 |
|
|
412 | && errno == EINVAL |
|
|
413 | && epp->len != 8) |
398 | write (epp->fd [1], &counter, epp->len); |
414 | write (epp->fd [1], &counter, (epp->len = 8)); |
399 | #endif |
415 | #endif |
400 | } |
416 | } |
401 | |
417 | |
402 | static void |
418 | static void |
403 | s_epipe_drain (s_epipe *epp) |
419 | s_epipe_drain (s_epipe *epp) |
404 | { |
420 | { |
|
|
421 | dTHX; |
405 | char buf [9]; |
422 | char buf [9]; |
406 | |
423 | |
407 | #ifdef _WIN32 |
424 | #ifdef _WIN32 |
408 | PerlSock_recv (epp->fd [0], buf, sizeof (buf), 0); |
425 | recv (epp->fd [0], buf, sizeof (buf), 0); |
409 | #else |
426 | #else |
410 | read (epp->fd [0], buf, sizeof (buf)); |
427 | read (epp->fd [0], buf, sizeof (buf)); |
411 | #endif |
428 | #endif |
412 | |
|
|
413 | epp->sent = 0; |
|
|
414 | } |
429 | } |
415 | |
430 | |
416 | /* like new, but dups over old */ |
431 | /* like new, but dups over old */ |
417 | static int |
432 | static int |
418 | s_epipe_renew (s_epipe *epp) |
433 | s_epipe_renew (s_epipe *epp) |
419 | { |
434 | { |
|
|
435 | dTHX; |
420 | s_epipe epn; |
436 | s_epipe epn; |
421 | |
437 | |
422 | if (epp->fd [1] != epp->fd [0]) |
438 | if (epp->fd [1] != epp->fd [0]) |
423 | close (epp->fd [1]); |
439 | close (epp->fd [1]); |
424 | |
440 | |
425 | if (s_epipe_new (&epn)) |
441 | if (s_epipe_new (&epn)) |
426 | return -1; |
442 | return -1; |
427 | |
443 | |
428 | if (epp->len) |
444 | if (epp->len) |
429 | { |
445 | { |
430 | if (dup2 (S_TO_SOCKET (epn.fd [0]), S_TO_SOCKET (epp->fd [0])) < 0) |
446 | if (dup2 (epn.fd [0], epp->fd [0]) < 0) |
431 | croak ("unable to dup over old event pipe"); /* should not croak */ |
447 | croak ("unable to dup over old event pipe"); /* should not croak */ |
432 | |
448 | |
433 | if (epp->fd [1] != epp->fd [0]) |
449 | if (epp->fd [1] != epp->fd [0]) |
434 | close (epn.fd [0]); |
450 | close (epn.fd [0]); |
435 | |
451 | |
… | |
… | |
444 | #define s_epipe_fd(epp) ((epp)->fd [0]) |
460 | #define s_epipe_fd(epp) ((epp)->fd [0]) |
445 | |
461 | |
446 | static int |
462 | static int |
447 | s_epipe_wait (s_epipe *epp) |
463 | s_epipe_wait (s_epipe *epp) |
448 | { |
464 | { |
|
|
465 | dTHX; |
449 | #ifdef _WIN32 |
466 | #ifdef _WIN32 |
450 | fd_set rfd; |
467 | fd_set rfd; |
|
|
468 | int fd = s_epipe_fd (epp); |
451 | |
469 | |
452 | FD_ZERO (&rfd); |
470 | FD_ZERO (&rfd); |
453 | FD_SET (s_epipe_fd (epp), &rfd); |
471 | FD_SET (fd, &rfd); |
454 | |
472 | |
455 | return PerlSock_select (s_epipe_fd (epp) + 1, &rfd, 0, 0, 0); |
473 | return PerlSock_select (fd + 1, &rfd, 0, 0, 0); |
456 | #else |
474 | #else |
457 | /* poll is preferable on posix systems */ |
475 | /* poll is preferable on posix systems */ |
458 | struct pollfd pfd; |
476 | struct pollfd pfd; |
459 | |
477 | |
460 | pfd.fd = s_epipe_fd (epp); |
478 | pfd.fd = s_epipe_fd (epp); |
461 | pfd.events = POLLIN; |
479 | pfd.events = POLLIN; |
462 | |
480 | |
463 | return poll (&pfd, 1, 0); |
481 | return poll (&pfd, 1, -1); |
464 | #endif |
482 | #endif |
465 | } |
483 | } |
466 | |
484 | |
467 | #endif |
485 | #endif |
468 | |
486 | |