… | |
… | |
4 | #include "EXTERN.h" |
4 | #include "EXTERN.h" |
5 | #include "perl.h" |
5 | #include "perl.h" |
6 | #include "XSUB.h" |
6 | #include "XSUB.h" |
7 | |
7 | |
8 | #include "autoconf/config.h" |
8 | #include "autoconf/config.h" |
|
|
9 | |
|
|
10 | #include <pthread.h> |
9 | |
11 | |
10 | #include <sys/types.h> |
12 | #include <sys/types.h> |
11 | #include <sys/stat.h> |
13 | #include <sys/stat.h> |
12 | |
14 | |
13 | #include <unistd.h> |
15 | #include <unistd.h> |
14 | #include <fcntl.h> |
16 | #include <fcntl.h> |
15 | #include <signal.h> |
17 | #include <signal.h> |
16 | #include <sched.h> |
18 | #include <sched.h> |
17 | |
19 | |
18 | #include <pthread.h> |
20 | #if HAVE_SENDFILE |
19 | |
21 | # if __linux |
20 | typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
22 | # include <sys/sendfile.h> |
21 | typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
23 | # elif __freebsd |
22 | typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ |
24 | # include <sys/socket.h> |
|
|
25 | # include <sys/uio.h> |
|
|
26 | # elif __hpux |
|
|
27 | # include <sys/socket.h> |
|
|
28 | # elif __solaris /* not yet */ |
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29 | # include <sys/sendfile.h> |
|
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30 | # else |
|
|
31 | # error sendfile support requested but not available |
|
|
32 | # endif |
|
|
33 | #endif |
23 | |
34 | |
24 | #if __ia64 |
35 | #if __ia64 |
25 | # define STACKSIZE 65536 |
36 | # define STACKSIZE 65536 |
26 | #else |
37 | #else |
27 | # define STACKSIZE 4096 |
38 | # define STACKSIZE 4096 |
… | |
… | |
29 | |
40 | |
30 | enum { |
41 | enum { |
31 | REQ_QUIT, |
42 | REQ_QUIT, |
32 | REQ_OPEN, REQ_CLOSE, |
43 | REQ_OPEN, REQ_CLOSE, |
33 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
44 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
|
|
45 | REQ_SENDFILE, |
34 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
46 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
35 | REQ_FSYNC, REQ_FDATASYNC, |
47 | REQ_FSYNC, REQ_FDATASYNC, |
36 | REQ_UNLINK, REQ_RMDIR, |
48 | REQ_UNLINK, REQ_RMDIR, |
37 | REQ_SYMLINK, |
49 | REQ_SYMLINK, |
38 | }; |
50 | }; |
… | |
… | |
40 | typedef struct aio_cb { |
52 | typedef struct aio_cb { |
41 | struct aio_cb *volatile next; |
53 | struct aio_cb *volatile next; |
42 | |
54 | |
43 | int type; |
55 | int type; |
44 | |
56 | |
45 | int fd; |
57 | int fd, fd2; |
46 | off_t offset; |
58 | off_t offset; |
47 | size_t length; |
59 | size_t length; |
48 | ssize_t result; |
60 | ssize_t result; |
49 | mode_t mode; /* open */ |
61 | mode_t mode; /* open */ |
50 | int errorno; |
62 | int errorno; |
51 | SV *data, *callback, *fh; |
63 | SV *data, *callback; |
|
|
64 | SV *fh, *fh2; |
52 | void *dataptr, *data2ptr; |
65 | void *dataptr, *data2ptr; |
53 | STRLEN dataoffset; |
66 | STRLEN dataoffset; |
54 | |
67 | |
55 | Stat_t *statdata; |
68 | Stat_t *statdata; |
56 | } aio_cb; |
69 | } aio_cb; |
57 | |
70 | |
58 | typedef aio_cb *aio_req; |
71 | typedef aio_cb *aio_req; |
59 | |
72 | |
60 | static int started; |
73 | static int started, wanted; |
61 | static volatile int nreqs; |
74 | static volatile int nreqs; |
62 | static int max_outstanding = 1<<30; |
75 | static int max_outstanding = 1<<30; |
63 | static int respipe [2]; |
76 | static int respipe [2]; |
64 | |
77 | |
65 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
78 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
… | |
… | |
74 | if (req->data) |
87 | if (req->data) |
75 | SvREFCNT_dec (req->data); |
88 | SvREFCNT_dec (req->data); |
76 | |
89 | |
77 | if (req->fh) |
90 | if (req->fh) |
78 | SvREFCNT_dec (req->fh); |
91 | SvREFCNT_dec (req->fh); |
|
|
92 | |
|
|
93 | if (req->fh2) |
|
|
94 | SvREFCNT_dec (req->fh2); |
79 | |
95 | |
80 | if (req->statdata) |
96 | if (req->statdata) |
81 | Safefree (req->statdata); |
97 | Safefree (req->statdata); |
82 | |
98 | |
83 | if (req->callback) |
99 | if (req->callback) |
… | |
… | |
116 | { |
132 | { |
117 | ress = req->next; |
133 | ress = req->next; |
118 | |
134 | |
119 | if (!ress) |
135 | if (!ress) |
120 | { |
136 | { |
121 | rese = 0; |
|
|
122 | |
|
|
123 | /* read any signals sent by the worker threads */ |
137 | /* read any signals sent by the worker threads */ |
124 | char buf [32]; |
138 | char buf [32]; |
125 | while (read (respipe [0], buf, 32) == 32) |
139 | while (read (respipe [0], buf, 32) == 32) |
126 | ; |
140 | ; |
|
|
141 | |
|
|
142 | rese = 0; |
127 | } |
143 | } |
128 | } |
144 | } |
129 | |
145 | |
130 | pthread_mutex_unlock (&reslock); |
146 | pthread_mutex_unlock (&reslock); |
131 | |
147 | |
… | |
… | |
221 | } |
237 | } |
222 | |
238 | |
223 | static void |
239 | static void |
224 | send_req (aio_req req) |
240 | send_req (aio_req req) |
225 | { |
241 | { |
|
|
242 | while (started < wanted && nreqs >= started) |
|
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243 | start_thread (); |
|
|
244 | |
226 | nreqs++; |
245 | nreqs++; |
227 | |
246 | |
228 | pthread_mutex_lock (&reqlock); |
247 | pthread_mutex_lock (&reqlock); |
229 | |
248 | |
230 | req->next = 0; |
249 | req->next = 0; |
… | |
… | |
262 | send_req (req); |
281 | send_req (req); |
263 | } |
282 | } |
264 | |
283 | |
265 | static void min_parallel (int nthreads) |
284 | static void min_parallel (int nthreads) |
266 | { |
285 | { |
267 | while (nthreads > started) |
286 | if (wanted < nthreads) |
268 | start_thread (); |
287 | wanted = nthreads; |
269 | } |
288 | } |
270 | |
289 | |
271 | static void max_parallel (int nthreads) |
290 | static void max_parallel (int nthreads) |
272 | { |
291 | { |
273 | int cur = started; |
292 | int cur = started; |
274 | |
293 | |
|
|
294 | if (wanted > nthreads) |
|
|
295 | wanted = nthreads; |
|
|
296 | |
275 | while (cur > nthreads) |
297 | while (cur > wanted) |
276 | { |
298 | { |
277 | end_thread (); |
299 | end_thread (); |
278 | cur--; |
300 | cur--; |
279 | } |
301 | } |
280 | |
302 | |
281 | while (started > nthreads) |
303 | while (started > wanted) |
282 | { |
304 | { |
283 | poll_wait (); |
305 | poll_wait (); |
284 | poll_cb (); |
306 | poll_cb (); |
285 | } |
307 | } |
286 | } |
308 | } |
… | |
… | |
311 | |
333 | |
312 | static void atfork_child (void) |
334 | static void atfork_child (void) |
313 | { |
335 | { |
314 | aio_req prv; |
336 | aio_req prv; |
315 | |
337 | |
316 | int restart = started; |
|
|
317 | started = 0; |
338 | started = 0; |
318 | |
339 | |
319 | while (reqs) |
340 | while (reqs) |
320 | { |
341 | { |
321 | prv = reqs; |
342 | prv = reqs; |
… | |
… | |
332 | free_req (prv); |
353 | free_req (prv); |
333 | } |
354 | } |
334 | |
355 | |
335 | ress = rese = 0; |
356 | ress = rese = 0; |
336 | |
357 | |
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358 | close (respipe [0]); |
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359 | close (respipe [1]); |
|
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360 | create_pipe (); |
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361 | |
337 | atfork_parent (); |
362 | atfork_parent (); |
338 | |
|
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339 | min_parallel (restart); |
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340 | } |
363 | } |
|
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364 | |
|
|
365 | /* currently noops */ |
|
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366 | #define LOCK_FD(fd) do { } while (0) |
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367 | #define UNLOCK_FD(fd) do { } while (0) |
341 | |
368 | |
342 | /*****************************************************************************/ |
369 | /*****************************************************************************/ |
343 | /* work around various missing functions */ |
370 | /* work around various missing functions */ |
344 | |
371 | |
345 | #if !HAVE_PREADWRITE |
372 | #if !HAVE_PREADWRITE |
… | |
… | |
357 | pread (int fd, void *buf, size_t count, off_t offset) |
384 | pread (int fd, void *buf, size_t count, off_t offset) |
358 | { |
385 | { |
359 | ssize_t res; |
386 | ssize_t res; |
360 | off_t ooffset; |
387 | off_t ooffset; |
361 | |
388 | |
362 | pthread_mutex_lock (&iolock); |
389 | LOCK_FD (fd); |
|
|
390 | pthread_mutex_lock (&iolock); /* replace by LOCK_FD and private buffer */ |
363 | ooffset = lseek (fd, 0, SEEK_CUR); |
391 | ooffset = lseek (fd, 0, SEEK_CUR); |
364 | lseek (fd, offset, SEEK_SET); |
392 | lseek (fd, offset, SEEK_SET); |
365 | res = read (fd, buf, count); |
393 | res = read (fd, buf, count); |
366 | lseek (fd, ooffset, SEEK_SET); |
394 | lseek (fd, ooffset, SEEK_SET); |
367 | pthread_mutex_unlock (&iolock); |
395 | pthread_mutex_unlock (&iolock); |
|
|
396 | UNLOCK_FD (d); |
368 | |
397 | |
369 | return res; |
398 | return res; |
370 | } |
399 | } |
371 | |
400 | |
372 | static ssize_t |
401 | static ssize_t |
373 | pwrite (int fd, void *buf, size_t count, off_t offset) |
402 | pwrite (int fd, void *buf, size_t count, off_t offset) |
374 | { |
403 | { |
375 | ssize_t res; |
404 | ssize_t res; |
376 | off_t ooffset; |
405 | off_t ooffset; |
377 | |
406 | |
378 | pthread_mutex_lock (&iolock); |
407 | LOCK_FD (fd); |
|
|
408 | pthread_mutex_lock (&iolock); /* replace by LOCK_FD and private buffer */ |
379 | ooffset = lseek (fd, 0, SEEK_CUR); |
409 | ooffset = lseek (fd, 0, SEEK_CUR); |
380 | lseek (fd, offset, SEEK_SET); |
410 | lseek (fd, offset, SEEK_SET); |
381 | res = write (fd, buf, count); |
411 | res = write (fd, buf, count); |
382 | lseek (fd, offset, SEEK_SET); |
412 | lseek (fd, offset, SEEK_SET); |
383 | pthread_mutex_unlock (&iolock); |
413 | pthread_mutex_unlock (&iolock); |
|
|
414 | UNLOCK_FD (d); |
384 | |
415 | |
385 | return res; |
416 | return res; |
386 | } |
417 | } |
387 | #endif |
418 | #endif |
388 | |
419 | |
… | |
… | |
408 | } |
439 | } |
409 | |
440 | |
410 | errno = 0; |
441 | errno = 0; |
411 | } |
442 | } |
412 | #endif |
443 | #endif |
|
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444 | |
|
|
445 | /* sendfile always needs emulation */ |
|
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446 | static ssize_t |
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447 | sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
|
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448 | { |
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449 | ssize_t res; |
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450 | |
|
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451 | if (!count) |
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452 | return 0; |
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453 | |
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454 | LOCK_FD (ofd); |
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455 | |
|
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456 | #if HAVE_SENDFILE |
|
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457 | # if __linux |
|
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458 | res = sendfile (ofd, ifd, &offset, count); |
|
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459 | |
|
|
460 | # elif __freebsd |
|
|
461 | /* |
|
|
462 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
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463 | * wasted on making it similar to other I/O functions. |
|
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464 | */ |
|
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465 | { |
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466 | off_t sbytes; |
|
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467 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
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468 | |
|
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469 | if (res < 0 && sbytes) |
|
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470 | /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ |
|
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471 | res = sbytes; |
|
|
472 | } |
|
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473 | |
|
|
474 | # elif __hpux |
|
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475 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
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476 | |
|
|
477 | # elif __solaris |
|
|
478 | { |
|
|
479 | struct sendfilevec vec; |
|
|
480 | size_t sbytes; |
|
|
481 | |
|
|
482 | vec.sfv_fd = ifd; |
|
|
483 | vec.sfv_flag = 0; |
|
|
484 | vec.sfv_off = offset; |
|
|
485 | vec.sfv_len = count; |
|
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486 | |
|
|
487 | res = sendfilev (ofd, &vec, 1, &sbytes); |
|
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488 | |
|
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489 | if (res < 0 && sbytes) |
|
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490 | res = sbytes; |
|
|
491 | } |
|
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492 | |
|
|
493 | # else |
|
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494 | res = -1; |
|
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495 | errno = ENOSYS; |
|
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496 | # endif |
|
|
497 | #endif |
|
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498 | |
|
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499 | if (res < 0 |
|
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500 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
|
|
501 | #if __solaris |
|
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502 | || errno == EAFNOSUPPORT || errno == EPROTOTYPE |
|
|
503 | #endif |
|
|
504 | ) |
|
|
505 | ) |
|
|
506 | { |
|
|
507 | /* emulate sendfile. this is a major pain in the ass */ |
|
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508 | char *buf = malloc (4096); |
|
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509 | res = 0; |
|
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510 | |
|
|
511 | for (;;) |
|
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512 | { |
|
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513 | ssize_t cnt; |
|
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514 | |
|
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515 | cnt = pread (ifd, buf, 4096, offset); |
|
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516 | |
|
|
517 | if (cnt <= 0) |
|
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518 | { |
|
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519 | if (cnt && !res) res = -1; |
|
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520 | break; |
|
|
521 | } |
|
|
522 | |
|
|
523 | cnt = write (ofd, buf, cnt); |
|
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524 | |
|
|
525 | if (cnt <= 0) |
|
|
526 | { |
|
|
527 | if (cnt && !res) res = -1; |
|
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528 | break; |
|
|
529 | } |
|
|
530 | |
|
|
531 | offset += cnt; |
|
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532 | res += cnt; |
|
|
533 | } |
|
|
534 | |
|
|
535 | { |
|
|
536 | int errorno = errno; |
|
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537 | free (buf); |
|
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538 | errno = errorno; |
|
|
539 | } |
|
|
540 | } |
|
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541 | |
|
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542 | UNLOCK_FD (ofd); |
|
|
543 | |
|
|
544 | return res; |
|
|
545 | } |
413 | |
546 | |
414 | /*****************************************************************************/ |
547 | /*****************************************************************************/ |
415 | |
548 | |
416 | static void * |
549 | static void * |
417 | aio_proc (void *thr_arg) |
550 | aio_proc (void *thr_arg) |
… | |
… | |
449 | { |
582 | { |
450 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
583 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
451 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
584 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
452 | |
585 | |
453 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
586 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
|
|
587 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
454 | |
588 | |
455 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
589 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
456 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
590 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
457 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
591 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
458 | |
592 | |
… | |
… | |
581 | |
715 | |
582 | void |
716 | void |
583 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
717 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
584 | SV * fh |
718 | SV * fh |
585 | UV offset |
719 | UV offset |
586 | IV length |
720 | UV length |
587 | SV * data |
721 | SV * data |
588 | IV dataoffset |
722 | UV dataoffset |
589 | SV * callback |
723 | SV * callback |
590 | ALIAS: |
724 | ALIAS: |
591 | aio_read = REQ_READ |
725 | aio_read = REQ_READ |
592 | aio_write = REQ_WRITE |
726 | aio_write = REQ_WRITE |
593 | PROTOTYPE: $$$$$;$ |
727 | PROTOTYPE: $$$$$;$ |
… | |
… | |
639 | req->data2ptr = (void *)data; |
773 | req->data2ptr = (void *)data; |
640 | } |
774 | } |
641 | |
775 | |
642 | send_req (req); |
776 | send_req (req); |
643 | } |
777 | } |
|
|
778 | } |
|
|
779 | |
|
|
780 | void |
|
|
781 | aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
|
|
782 | SV * out_fh |
|
|
783 | SV * in_fh |
|
|
784 | UV in_offset |
|
|
785 | UV length |
|
|
786 | SV * callback |
|
|
787 | PROTOTYPE: $$$$;$ |
|
|
788 | CODE: |
|
|
789 | { |
|
|
790 | dREQ; |
|
|
791 | |
|
|
792 | req->type = REQ_SENDFILE; |
|
|
793 | req->fh = newSVsv (out_fh); |
|
|
794 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
795 | req->fh2 = newSVsv (in_fh); |
|
|
796 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
797 | req->offset = in_offset; |
|
|
798 | req->length = length; |
|
|
799 | |
|
|
800 | send_req (req); |
644 | } |
801 | } |
645 | |
802 | |
646 | void |
803 | void |
647 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
804 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
648 | SV * fh |
805 | SV * fh |