… | |
… | |
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 | # endif |
|
|
29 | #endif |
23 | |
30 | |
24 | #if __ia64 |
31 | #if __ia64 |
25 | # define STACKSIZE 65536 |
32 | # define STACKSIZE 65536 |
26 | #else |
33 | #else |
27 | # define STACKSIZE 4096 |
34 | # define STACKSIZE 4096 |
… | |
… | |
29 | |
36 | |
30 | enum { |
37 | enum { |
31 | REQ_QUIT, |
38 | REQ_QUIT, |
32 | REQ_OPEN, REQ_CLOSE, |
39 | REQ_OPEN, REQ_CLOSE, |
33 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
40 | REQ_READ, REQ_WRITE, REQ_READAHEAD, |
|
|
41 | REQ_SENDFILE, |
34 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
42 | REQ_STAT, REQ_LSTAT, REQ_FSTAT, |
35 | REQ_FSYNC, REQ_FDATASYNC, |
43 | REQ_FSYNC, REQ_FDATASYNC, |
36 | REQ_UNLINK, REQ_RMDIR, |
44 | REQ_UNLINK, REQ_RMDIR, |
37 | REQ_SYMLINK, |
45 | REQ_SYMLINK, |
38 | }; |
46 | }; |
… | |
… | |
40 | typedef struct aio_cb { |
48 | typedef struct aio_cb { |
41 | struct aio_cb *volatile next; |
49 | struct aio_cb *volatile next; |
42 | |
50 | |
43 | int type; |
51 | int type; |
44 | |
52 | |
45 | int fd; |
53 | int fd, fd2; |
46 | off_t offset; |
54 | off_t offset; |
47 | size_t length; |
55 | size_t length; |
48 | ssize_t result; |
56 | ssize_t result; |
49 | mode_t mode; /* open */ |
57 | mode_t mode; /* open */ |
50 | int errorno; |
58 | int errorno; |
51 | SV *data, *callback, *fh; |
59 | SV *data, *callback; |
|
|
60 | SV *fh, *fh2; |
52 | void *dataptr, *data2ptr; |
61 | void *dataptr, *data2ptr; |
53 | STRLEN dataoffset; |
62 | STRLEN dataoffset; |
54 | |
63 | |
55 | Stat_t *statdata; |
64 | Stat_t *statdata; |
56 | } aio_cb; |
65 | } aio_cb; |
57 | |
66 | |
58 | typedef aio_cb *aio_req; |
67 | typedef aio_cb *aio_req; |
59 | |
68 | |
60 | static int started; |
69 | static int started, wanted; |
61 | static volatile int nreqs; |
70 | static volatile int nreqs; |
62 | static int max_outstanding = 1<<30; |
71 | static int max_outstanding = 1<<30; |
63 | static int respipe [2]; |
72 | static int respipe [2]; |
64 | |
73 | |
65 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
74 | static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; |
… | |
… | |
74 | if (req->data) |
83 | if (req->data) |
75 | SvREFCNT_dec (req->data); |
84 | SvREFCNT_dec (req->data); |
76 | |
85 | |
77 | if (req->fh) |
86 | if (req->fh) |
78 | SvREFCNT_dec (req->fh); |
87 | SvREFCNT_dec (req->fh); |
|
|
88 | |
|
|
89 | if (req->fh2) |
|
|
90 | SvREFCNT_dec (req->fh2); |
79 | |
91 | |
80 | if (req->statdata) |
92 | if (req->statdata) |
81 | Safefree (req->statdata); |
93 | Safefree (req->statdata); |
82 | |
94 | |
83 | if (req->callback) |
95 | if (req->callback) |
… | |
… | |
116 | { |
128 | { |
117 | ress = req->next; |
129 | ress = req->next; |
118 | |
130 | |
119 | if (!ress) |
131 | if (!ress) |
120 | { |
132 | { |
121 | rese = 0; |
|
|
122 | |
|
|
123 | /* read any signals sent by the worker threads */ |
133 | /* read any signals sent by the worker threads */ |
124 | char buf [32]; |
134 | char buf [32]; |
125 | while (read (respipe [0], buf, 32) == 32) |
135 | while (read (respipe [0], buf, 32) == 32) |
126 | ; |
136 | ; |
|
|
137 | |
|
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138 | rese = 0; |
127 | } |
139 | } |
128 | } |
140 | } |
129 | |
141 | |
130 | pthread_mutex_unlock (&reslock); |
142 | pthread_mutex_unlock (&reslock); |
131 | |
143 | |
… | |
… | |
142 | errno = req->errorno; |
154 | errno = req->errorno; |
143 | |
155 | |
144 | if (req->type == REQ_READ) |
156 | if (req->type == REQ_READ) |
145 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
157 | SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); |
146 | |
158 | |
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159 | if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) |
|
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160 | SvREADONLY_off (req->data); |
|
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161 | |
147 | if (req->statdata) |
162 | if (req->statdata) |
148 | { |
163 | { |
149 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
164 | PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; |
150 | PL_laststatval = req->result; |
165 | PL_laststatval = req->result; |
151 | PL_statcache = *(req->statdata); |
166 | PL_statcache = *(req->statdata); |
… | |
… | |
218 | } |
233 | } |
219 | |
234 | |
220 | static void |
235 | static void |
221 | send_req (aio_req req) |
236 | send_req (aio_req req) |
222 | { |
237 | { |
|
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238 | while (started < wanted && nreqs >= started) |
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239 | start_thread (); |
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240 | |
223 | nreqs++; |
241 | nreqs++; |
224 | |
242 | |
225 | pthread_mutex_lock (&reqlock); |
243 | pthread_mutex_lock (&reqlock); |
226 | |
244 | |
227 | req->next = 0; |
245 | req->next = 0; |
… | |
… | |
259 | send_req (req); |
277 | send_req (req); |
260 | } |
278 | } |
261 | |
279 | |
262 | static void min_parallel (int nthreads) |
280 | static void min_parallel (int nthreads) |
263 | { |
281 | { |
264 | while (nthreads > started) |
282 | if (wanted < nthreads) |
265 | start_thread (); |
283 | wanted = nthreads; |
266 | } |
284 | } |
267 | |
285 | |
268 | static void max_parallel (int nthreads) |
286 | static void max_parallel (int nthreads) |
269 | { |
287 | { |
270 | int cur = started; |
288 | int cur = started; |
271 | |
289 | |
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290 | if (wanted > nthreads) |
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291 | wanted = nthreads; |
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292 | |
272 | while (cur > nthreads) |
293 | while (cur > wanted) |
273 | { |
294 | { |
274 | end_thread (); |
295 | end_thread (); |
275 | cur--; |
296 | cur--; |
276 | } |
297 | } |
277 | |
298 | |
278 | while (started > nthreads) |
299 | while (started > wanted) |
279 | { |
300 | { |
280 | poll_wait (); |
301 | poll_wait (); |
281 | poll_cb (); |
302 | poll_cb (); |
282 | } |
303 | } |
283 | } |
304 | } |
… | |
… | |
294 | croak ("cannot set result pipe to nonblocking mode"); |
315 | croak ("cannot set result pipe to nonblocking mode"); |
295 | } |
316 | } |
296 | |
317 | |
297 | static void atfork_prepare (void) |
318 | static void atfork_prepare (void) |
298 | { |
319 | { |
299 | for (;;) { |
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300 | |
|
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301 | for (;;) |
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302 | { |
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303 | poll_cb (); |
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304 | |
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305 | if (!nreqs) |
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306 | break; |
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307 | |
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308 | poll_wait (); |
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309 | } |
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310 | |
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311 | pthread_mutex_lock (&reqlock); |
320 | pthread_mutex_lock (&reqlock); |
312 | |
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313 | if (!nreqs) |
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314 | break; |
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315 | |
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316 | pthread_mutex_unlock (&reqlock); |
|
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317 | } |
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318 | |
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319 | pthread_mutex_lock (&reslock); |
321 | pthread_mutex_lock (&reslock); |
320 | |
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321 | assert (!nreqs && !reqs && !ress); |
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322 | } |
322 | } |
323 | |
323 | |
324 | static void atfork_parent (void) |
324 | static void atfork_parent (void) |
325 | { |
325 | { |
326 | pthread_mutex_unlock (&reslock); |
326 | pthread_mutex_unlock (&reslock); |
327 | pthread_mutex_unlock (&reqlock); |
327 | pthread_mutex_unlock (&reqlock); |
328 | } |
328 | } |
329 | |
329 | |
330 | static void atfork_child (void) |
330 | static void atfork_child (void) |
331 | { |
331 | { |
332 | int restart = started; |
332 | aio_req prv; |
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333 | |
333 | started = 0; |
334 | started = 0; |
334 | |
335 | |
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336 | while (reqs) |
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337 | { |
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338 | prv = reqs; |
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339 | reqs = prv->next; |
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340 | free_req (prv); |
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341 | } |
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342 | |
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343 | reqs = reqe = 0; |
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344 | |
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345 | while (ress) |
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346 | { |
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347 | prv = ress; |
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348 | ress = prv->next; |
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349 | free_req (prv); |
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350 | } |
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351 | |
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352 | ress = rese = 0; |
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353 | |
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354 | close (respipe [0]); |
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355 | close (respipe [1]); |
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356 | create_pipe (); |
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357 | |
335 | atfork_parent (); |
358 | atfork_parent (); |
336 | |
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337 | min_parallel (restart); |
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338 | } |
359 | } |
339 | |
360 | |
340 | /*****************************************************************************/ |
361 | /*****************************************************************************/ |
341 | /* work around various missing functions */ |
362 | /* work around various missing functions */ |
342 | |
363 | |
… | |
… | |
407 | |
428 | |
408 | errno = 0; |
429 | errno = 0; |
409 | } |
430 | } |
410 | #endif |
431 | #endif |
411 | |
432 | |
|
|
433 | /* sendfile always needs emulation */ |
|
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434 | static ssize_t |
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435 | sendfile_ (int ofd, int ifd, off_t offset, size_t count) |
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436 | { |
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437 | ssize_t res; |
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438 | |
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439 | if (!count) |
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440 | return 0; |
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441 | |
|
|
442 | #if __linux |
|
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443 | res = sendfile (ofd, ifd, &offset, count); |
|
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444 | |
|
|
445 | #elif __freebsd |
|
|
446 | /* |
|
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447 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
|
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448 | * wasted on making it similar to other i/o functions. |
|
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449 | */ |
|
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450 | { |
|
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451 | off_t sbytes; |
|
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452 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
|
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453 | |
|
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454 | if (!res && errno == EAGAIN) |
|
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455 | res = sbytes; |
|
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456 | } |
|
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457 | |
|
|
458 | #elif __hpux |
|
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459 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
|
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460 | |
|
|
461 | #else |
|
|
462 | res = -1; |
|
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463 | errno = ENOSYS; |
|
|
464 | #endif |
|
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465 | |
|
|
466 | if (res < 0 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK)) |
|
|
467 | { |
|
|
468 | /* emulate sendfile. this is a major pain in the ass */ |
|
|
469 | char *buf = malloc (4096); |
|
|
470 | res = 0; |
|
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471 | |
|
|
472 | for (;;) |
|
|
473 | { |
|
|
474 | ssize_t cnt; |
|
|
475 | |
|
|
476 | cnt = pread (ifd, buf, 4096, offset); |
|
|
477 | |
|
|
478 | if (cnt <= 0) |
|
|
479 | { |
|
|
480 | if (cnt && !res) res = -1; |
|
|
481 | break; |
|
|
482 | } |
|
|
483 | |
|
|
484 | cnt = write (ofd, buf, cnt); |
|
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485 | |
|
|
486 | if (cnt <= 0) |
|
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487 | { |
|
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488 | if (cnt && !res) res = -1; |
|
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489 | break; |
|
|
490 | } |
|
|
491 | |
|
|
492 | offset += cnt; |
|
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493 | res += cnt; |
|
|
494 | } |
|
|
495 | |
|
|
496 | { |
|
|
497 | int errorno = errno; |
|
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498 | free (buf); |
|
|
499 | errno = errorno; |
|
|
500 | } |
|
|
501 | } |
|
|
502 | |
|
|
503 | return res; |
|
|
504 | } |
|
|
505 | |
412 | /*****************************************************************************/ |
506 | /*****************************************************************************/ |
413 | |
507 | |
414 | static void * |
508 | static void * |
415 | aio_proc (void *thr_arg) |
509 | aio_proc (void *thr_arg) |
416 | { |
510 | { |
… | |
… | |
447 | { |
541 | { |
448 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
542 | case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; |
449 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
543 | case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; |
450 | |
544 | |
451 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
545 | case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; |
|
|
546 | case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; |
452 | |
547 | |
453 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
548 | case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; |
454 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
549 | case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; |
455 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
550 | case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; |
456 | |
551 | |
… | |
… | |
579 | |
674 | |
580 | void |
675 | void |
581 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
676 | aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) |
582 | SV * fh |
677 | SV * fh |
583 | UV offset |
678 | UV offset |
584 | IV length |
679 | UV length |
585 | SV * data |
680 | SV * data |
586 | IV dataoffset |
681 | UV dataoffset |
587 | SV * callback |
682 | SV * callback |
588 | ALIAS: |
683 | ALIAS: |
589 | aio_read = REQ_READ |
684 | aio_read = REQ_READ |
590 | aio_write = REQ_WRITE |
685 | aio_write = REQ_WRITE |
591 | PROTOTYPE: $$$$$;$ |
686 | PROTOTYPE: $$$$$;$ |
… | |
… | |
629 | req->offset = offset; |
724 | req->offset = offset; |
630 | req->length = length; |
725 | req->length = length; |
631 | req->data = SvREFCNT_inc (data); |
726 | req->data = SvREFCNT_inc (data); |
632 | req->dataptr = (char *)svptr + dataoffset; |
727 | req->dataptr = (char *)svptr + dataoffset; |
633 | |
728 | |
|
|
729 | if (!SvREADONLY (data)) |
|
|
730 | { |
|
|
731 | SvREADONLY_on (data); |
|
|
732 | req->data2ptr = (void *)data; |
|
|
733 | } |
|
|
734 | |
634 | send_req (req); |
735 | send_req (req); |
635 | } |
736 | } |
|
|
737 | } |
|
|
738 | |
|
|
739 | void |
|
|
740 | aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) |
|
|
741 | SV * out_fh |
|
|
742 | SV * in_fh |
|
|
743 | UV in_offset |
|
|
744 | UV length |
|
|
745 | SV * callback |
|
|
746 | PROTOTYPE: $$$$;$ |
|
|
747 | CODE: |
|
|
748 | { |
|
|
749 | dREQ; |
|
|
750 | |
|
|
751 | req->type = REQ_SENDFILE; |
|
|
752 | req->fh = newSVsv (out_fh); |
|
|
753 | req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
|
|
754 | req->fh2 = newSVsv (in_fh); |
|
|
755 | req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
|
|
756 | req->offset = in_offset; |
|
|
757 | req->length = length; |
|
|
758 | |
|
|
759 | send_req (req); |
636 | } |
760 | } |
637 | |
761 | |
638 | void |
762 | void |
639 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
763 | aio_readahead(fh,offset,length,callback=&PL_sv_undef) |
640 | SV * fh |
764 | SV * fh |