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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> |
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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 | |
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208 | /* taken almost verbatim from libev's ev_win32.c */ |
209 | /* taken almost verbatim from libev's ev_win32.c */ |
209 | /* oh, the humanity! */ |
210 | /* oh, the humanity! */ |
210 | static int |
211 | static int |
211 | s_pipe (int filedes [2]) |
212 | s_pipe (int filedes [2]) |
212 | { |
213 | { |
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214 | dTHX; |
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215 | |
213 | struct sockaddr_in addr = { 0 }; |
216 | struct sockaddr_in addr = { 0 }; |
214 | int addr_size = sizeof (addr); |
217 | int addr_size = sizeof (addr); |
215 | struct sockaddr_in adr2; |
218 | struct sockaddr_in adr2; |
216 | int adr2_size = sizeof (adr2); |
219 | int adr2_size = sizeof (adr2); |
217 | SOCKET listener; |
220 | SOCKET listener; |
… | |
… | |
336 | #endif |
339 | #endif |
337 | |
340 | |
338 | typedef struct { |
341 | typedef struct { |
339 | int fd[2]; /* read, write fd, might be equal */ |
342 | int fd[2]; /* read, write fd, might be equal */ |
340 | int len; /* write length (1 pipe/socket, 8 eventfd) */ |
343 | int len; /* write length (1 pipe/socket, 8 eventfd) */ |
341 | volatile sig_atomic_t sent; |
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342 | } s_epipe; |
344 | } s_epipe; |
343 | |
345 | |
344 | static int |
346 | static int |
345 | s_epipe_new (s_epipe *epp) |
347 | s_epipe_new (s_epipe *epp) |
346 | { |
348 | { |
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… | |
359 | return -1; |
361 | return -1; |
360 | |
362 | |
361 | if (s_fd_prepare (ep.fd [0]) |
363 | if (s_fd_prepare (ep.fd [0]) |
362 | || s_fd_prepare (ep.fd [1])) |
364 | || s_fd_prepare (ep.fd [1])) |
363 | { |
365 | { |
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366 | dTHX; |
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367 | |
364 | close (ep.fd [0]); |
368 | close (ep.fd [0]); |
365 | close (ep.fd [1]); |
369 | close (ep.fd [1]); |
366 | return -1; |
370 | return -1; |
367 | } |
371 | } |
368 | |
372 | |
369 | ep.len = 1; |
373 | ep.len = 1; |
370 | } |
374 | } |
371 | |
375 | |
372 | ep.sent = 0; |
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373 | *epp = ep; |
376 | *epp = ep; |
374 | return 0; |
377 | return 0; |
375 | } |
378 | } |
376 | |
379 | |
377 | static void |
380 | static void |
378 | s_epipe_destroy (s_epipe *epp) |
381 | s_epipe_destroy (s_epipe *epp) |
379 | { |
382 | { |
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383 | dTHX; |
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384 | |
380 | close (epp->fd [0]); |
385 | close (epp->fd [0]); |
381 | |
386 | |
382 | if (epp->fd [1] != epp->fd [0]) |
387 | if (epp->fd [1] != epp->fd [0]) |
383 | close (epp->fd [1]); |
388 | close (epp->fd [1]); |
384 | |
389 | |
… | |
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386 | } |
391 | } |
387 | |
392 | |
388 | static void |
393 | static void |
389 | s_epipe_signal (s_epipe *epp) |
394 | s_epipe_signal (s_epipe *epp) |
390 | { |
395 | { |
391 | if (epp->sent) |
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392 | return; |
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393 | |
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394 | epp->sent = 1; |
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395 | { |
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396 | #ifdef _WIN32 |
396 | #ifdef _WIN32 |
397 | /* perl overrides send with a function that crashes in other threads. |
397 | /* perl overrides send with a function that crashes in other threads. |
398 | * unfortunately, it overrides it with an argument-less macro, so |
398 | * unfortunately, it overrides it with an argument-less macro, so |
399 | * there is no way to force usage of the real send function. |
399 | * there is no way to force usage of the real send function. |
400 | * incompetent windows programmers - is this redundant? |
400 | * incompetent windows programmers - is this redundant? |
401 | */ |
401 | */ |
402 | DWORD dummy; |
402 | DWORD dummy; |
403 | WriteFile (S_TO_HANDLE (epp->fd [1]), (LPCVOID)&dummy, 1, &dummy, 0); |
403 | WriteFile (S_TO_HANDLE (epp->fd [1]), (LPCVOID)&dummy, 1, &dummy, 0); |
404 | #else |
404 | #else |
405 | static uint64_t counter = 1; |
405 | static uint64_t counter = 1; |
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406 | /* some modules accept fd's from outside, support eventfd here */ |
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407 | if (write (epp->fd [1], &counter, epp->len) < 0 |
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408 | && errno == EINVAL |
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409 | && epp->len != 8) |
406 | write (epp->fd [1], &counter, epp->len); |
410 | write (epp->fd [1], &counter, (epp->len = 8)); |
407 | #endif |
411 | #endif |
408 | } |
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409 | } |
412 | } |
410 | |
413 | |
411 | static void |
414 | static void |
412 | s_epipe_drain (s_epipe *epp) |
415 | s_epipe_drain (s_epipe *epp) |
413 | { |
416 | { |
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417 | dTHX; |
414 | char buf [9]; |
418 | char buf [9]; |
415 | |
419 | |
416 | #ifdef _WIN32 |
420 | #ifdef _WIN32 |
417 | recv (epp->fd [0], buf, sizeof (buf), 0); |
421 | recv (epp->fd [0], buf, sizeof (buf), 0); |
418 | #else |
422 | #else |
419 | read (epp->fd [0], buf, sizeof (buf)); |
423 | read (epp->fd [0], buf, sizeof (buf)); |
420 | #endif |
424 | #endif |
421 | |
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422 | epp->sent = 0; |
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423 | } |
425 | } |
424 | |
426 | |
425 | /* like new, but dups over old */ |
427 | /* like new, but dups over old */ |
426 | static int |
428 | static int |
427 | s_epipe_renew (s_epipe *epp) |
429 | s_epipe_renew (s_epipe *epp) |
428 | { |
430 | { |
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431 | dTHX; |
429 | s_epipe epn; |
432 | s_epipe epn; |
430 | |
433 | |
431 | if (epp->fd [1] != epp->fd [0]) |
434 | if (epp->fd [1] != epp->fd [0]) |
432 | close (epp->fd [1]); |
435 | close (epp->fd [1]); |
433 | |
436 | |
… | |
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453 | #define s_epipe_fd(epp) ((epp)->fd [0]) |
456 | #define s_epipe_fd(epp) ((epp)->fd [0]) |
454 | |
457 | |
455 | static int |
458 | static int |
456 | s_epipe_wait (s_epipe *epp) |
459 | s_epipe_wait (s_epipe *epp) |
457 | { |
460 | { |
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461 | dTHX; |
458 | #ifdef _WIN32 |
462 | #ifdef _WIN32 |
459 | fd_set rfd; |
463 | fd_set rfd; |
460 | int fd = s_epipe_fd (epp); |
464 | int fd = s_epipe_fd (epp); |
461 | |
465 | |
462 | FD_ZERO (&rfd); |
466 | FD_ZERO (&rfd); |