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40 | #ifndef _WIN32 |
40 | #ifndef _WIN32 |
41 | # include "config.h" |
41 | # include "config.h" |
42 | #endif |
42 | #endif |
43 | |
43 | |
44 | #include "eio.h" |
44 | #include "eio.h" |
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45 | #include "ecb.h" |
45 | |
46 | |
46 | #ifdef EIO_STACKSIZE |
47 | #ifdef EIO_STACKSIZE |
47 | # define XTHREAD_STACKSIZE EIO_STACKSIZE |
48 | # define XTHREAD_STACKSIZE EIO_STACKSIZE |
48 | #endif |
49 | #endif |
49 | #include "xthread.h" |
50 | #include "xthread.h" |
… | |
… | |
57 | #include <sys/stat.h> |
58 | #include <sys/stat.h> |
58 | #include <sys/statvfs.h> |
59 | #include <sys/statvfs.h> |
59 | #include <limits.h> |
60 | #include <limits.h> |
60 | #include <fcntl.h> |
61 | #include <fcntl.h> |
61 | #include <assert.h> |
62 | #include <assert.h> |
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63 | |
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64 | /* intptr_t comes from unistd.h, says POSIX/UNIX/tradition */ |
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65 | /* intptr_t only comes form stdint.h, says idiot openbsd coder */ |
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66 | #if HAVE_STDINT_H |
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67 | # include <stdint.h> |
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68 | #endif |
62 | |
69 | |
63 | #ifndef EIO_FINISH |
70 | #ifndef EIO_FINISH |
64 | # define EIO_FINISH(req) ((req)->finish) && !EIO_CANCELLED (req) ? (req)->finish (req) : 0 |
71 | # define EIO_FINISH(req) ((req)->finish) && !EIO_CANCELLED (req) ? (req)->finish (req) : 0 |
65 | #endif |
72 | #endif |
66 | |
73 | |
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159 | if (!eio_buf) \ |
166 | if (!eio_buf) \ |
160 | return -1; |
167 | return -1; |
161 | |
168 | |
162 | #define EIO_TICKS ((1000000 + 1023) >> 10) |
169 | #define EIO_TICKS ((1000000 + 1023) >> 10) |
163 | |
170 | |
164 | /*****************************************************************************/ |
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165 | |
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166 | #if __GNUC__ >= 3 |
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167 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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168 | #else |
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169 | # define expect(expr,value) (expr) |
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170 | #endif |
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171 | |
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172 | #define expect_false(expr) expect ((expr) != 0, 0) |
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173 | #define expect_true(expr) expect ((expr) != 0, 1) |
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174 | |
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175 | /*****************************************************************************/ |
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176 | |
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177 | #define ETP_PRI_MIN EIO_PRI_MIN |
171 | #define ETP_PRI_MIN EIO_PRI_MIN |
178 | #define ETP_PRI_MAX EIO_PRI_MAX |
172 | #define ETP_PRI_MAX EIO_PRI_MAX |
179 | |
173 | |
180 | struct etp_worker; |
174 | struct etp_worker; |
181 | |
175 | |
… | |
… | |
206 | /*****************************************************************************/ |
200 | /*****************************************************************************/ |
207 | |
201 | |
208 | #define ETP_NUM_PRI (ETP_PRI_MAX - ETP_PRI_MIN + 1) |
202 | #define ETP_NUM_PRI (ETP_PRI_MAX - ETP_PRI_MIN + 1) |
209 | |
203 | |
210 | /* calculate time difference in ~1/EIO_TICKS of a second */ |
204 | /* calculate time difference in ~1/EIO_TICKS of a second */ |
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205 | ecb_inline int |
211 | static int tvdiff (struct timeval *tv1, struct timeval *tv2) |
206 | tvdiff (struct timeval *tv1, struct timeval *tv2) |
212 | { |
207 | { |
213 | return (tv2->tv_sec - tv1->tv_sec ) * EIO_TICKS |
208 | return (tv2->tv_sec - tv1->tv_sec ) * EIO_TICKS |
214 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
209 | + ((tv2->tv_usec - tv1->tv_usec) >> 10); |
215 | } |
210 | } |
216 | |
211 | |
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260 | #define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock) |
255 | #define ETP_WORKER_LOCK(wrk) X_LOCK (wrklock) |
261 | #define ETP_WORKER_UNLOCK(wrk) X_UNLOCK (wrklock) |
256 | #define ETP_WORKER_UNLOCK(wrk) X_UNLOCK (wrklock) |
262 | |
257 | |
263 | /* worker threads management */ |
258 | /* worker threads management */ |
264 | |
259 | |
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260 | static void ecb_cold |
265 | static void etp_worker_clear (etp_worker *wrk) |
261 | etp_worker_clear (etp_worker *wrk) |
266 | { |
262 | { |
267 | ETP_WORKER_CLEAR (wrk); |
263 | ETP_WORKER_CLEAR (wrk); |
268 | } |
264 | } |
269 | |
265 | |
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266 | static void ecb_cold |
270 | static void etp_worker_free (etp_worker *wrk) |
267 | etp_worker_free (etp_worker *wrk) |
271 | { |
268 | { |
272 | wrk->next->prev = wrk->prev; |
269 | wrk->next->prev = wrk->prev; |
273 | wrk->prev->next = wrk->next; |
270 | wrk->prev->next = wrk->next; |
274 | |
271 | |
275 | free (wrk); |
272 | free (wrk); |
276 | } |
273 | } |
277 | |
274 | |
278 | static unsigned int etp_nreqs (void) |
275 | static unsigned int |
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276 | etp_nreqs (void) |
279 | { |
277 | { |
280 | int retval; |
278 | int retval; |
281 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
279 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
282 | retval = nreqs; |
280 | retval = nreqs; |
283 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
281 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
284 | return retval; |
282 | return retval; |
285 | } |
283 | } |
286 | |
284 | |
287 | static unsigned int etp_nready (void) |
285 | static unsigned int |
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286 | etp_nready (void) |
288 | { |
287 | { |
289 | unsigned int retval; |
288 | unsigned int retval; |
290 | |
289 | |
291 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
290 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
292 | retval = nready; |
291 | retval = nready; |
293 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
292 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
294 | |
293 | |
295 | return retval; |
294 | return retval; |
296 | } |
295 | } |
297 | |
296 | |
298 | static unsigned int etp_npending (void) |
297 | static unsigned int |
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298 | etp_npending (void) |
299 | { |
299 | { |
300 | unsigned int retval; |
300 | unsigned int retval; |
301 | |
301 | |
302 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
302 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
303 | retval = npending; |
303 | retval = npending; |
304 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
304 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
305 | |
305 | |
306 | return retval; |
306 | return retval; |
307 | } |
307 | } |
308 | |
308 | |
309 | static unsigned int etp_nthreads (void) |
309 | static unsigned int |
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310 | etp_nthreads (void) |
310 | { |
311 | { |
311 | unsigned int retval; |
312 | unsigned int retval; |
312 | |
313 | |
313 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
314 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
314 | retval = started; |
315 | retval = started; |
… | |
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328 | } etp_reqq; |
329 | } etp_reqq; |
329 | |
330 | |
330 | static etp_reqq req_queue; |
331 | static etp_reqq req_queue; |
331 | static etp_reqq res_queue; |
332 | static etp_reqq res_queue; |
332 | |
333 | |
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334 | static int ecb_noinline |
333 | static int reqq_push (etp_reqq *q, ETP_REQ *req) |
335 | reqq_push (etp_reqq *q, ETP_REQ *req) |
334 | { |
336 | { |
335 | int pri = req->pri; |
337 | int pri = req->pri; |
336 | req->next = 0; |
338 | req->next = 0; |
337 | |
339 | |
338 | if (q->qe[pri]) |
340 | if (q->qe[pri]) |
… | |
… | |
344 | q->qe[pri] = q->qs[pri] = req; |
346 | q->qe[pri] = q->qs[pri] = req; |
345 | |
347 | |
346 | return q->size++; |
348 | return q->size++; |
347 | } |
349 | } |
348 | |
350 | |
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351 | static ETP_REQ * ecb_noinline |
349 | static ETP_REQ *reqq_shift (etp_reqq *q) |
352 | reqq_shift (etp_reqq *q) |
350 | { |
353 | { |
351 | int pri; |
354 | int pri; |
352 | |
355 | |
353 | if (!q->size) |
356 | if (!q->size) |
354 | return 0; |
357 | return 0; |
… | |
… | |
369 | } |
372 | } |
370 | |
373 | |
371 | abort (); |
374 | abort (); |
372 | } |
375 | } |
373 | |
376 | |
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377 | static void ecb_cold |
374 | static void etp_thread_init (void) |
378 | etp_thread_init (void) |
375 | { |
379 | { |
376 | X_MUTEX_CREATE (wrklock); |
380 | X_MUTEX_CREATE (wrklock); |
377 | X_MUTEX_CREATE (reslock); |
381 | X_MUTEX_CREATE (reslock); |
378 | X_MUTEX_CREATE (reqlock); |
382 | X_MUTEX_CREATE (reqlock); |
379 | X_COND_CREATE (reqwait); |
383 | X_COND_CREATE (reqwait); |
380 | } |
384 | } |
381 | |
385 | |
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386 | static void ecb_cold |
382 | static void etp_atfork_prepare (void) |
387 | etp_atfork_prepare (void) |
383 | { |
388 | { |
384 | X_LOCK (wrklock); |
389 | X_LOCK (wrklock); |
385 | X_LOCK (reqlock); |
390 | X_LOCK (reqlock); |
386 | X_LOCK (reslock); |
391 | X_LOCK (reslock); |
387 | #if !HAVE_PREADWRITE |
392 | #if !HAVE_PREADWRITE |
388 | X_LOCK (preadwritelock); |
393 | X_LOCK (preadwritelock); |
389 | #endif |
394 | #endif |
390 | } |
395 | } |
391 | |
396 | |
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397 | static void ecb_cold |
392 | static void etp_atfork_parent (void) |
398 | etp_atfork_parent (void) |
393 | { |
399 | { |
394 | #if !HAVE_PREADWRITE |
400 | #if !HAVE_PREADWRITE |
395 | X_UNLOCK (preadwritelock); |
401 | X_UNLOCK (preadwritelock); |
396 | #endif |
402 | #endif |
397 | X_UNLOCK (reslock); |
403 | X_UNLOCK (reslock); |
398 | X_UNLOCK (reqlock); |
404 | X_UNLOCK (reqlock); |
399 | X_UNLOCK (wrklock); |
405 | X_UNLOCK (wrklock); |
400 | } |
406 | } |
401 | |
407 | |
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408 | static void ecb_cold |
402 | static void etp_atfork_child (void) |
409 | etp_atfork_child (void) |
403 | { |
410 | { |
404 | ETP_REQ *prv; |
411 | ETP_REQ *prv; |
405 | |
412 | |
406 | while ((prv = reqq_shift (&req_queue))) |
413 | while ((prv = reqq_shift (&req_queue))) |
407 | ETP_DESTROY (prv); |
414 | ETP_DESTROY (prv); |
… | |
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427 | npending = 0; |
434 | npending = 0; |
428 | |
435 | |
429 | etp_thread_init (); |
436 | etp_thread_init (); |
430 | } |
437 | } |
431 | |
438 | |
432 | static void |
439 | static void ecb_cold |
433 | etp_once_init (void) |
440 | etp_once_init (void) |
434 | { |
441 | { |
435 | etp_thread_init (); |
442 | etp_thread_init (); |
436 | X_THREAD_ATFORK (etp_atfork_prepare, etp_atfork_parent, etp_atfork_child); |
443 | X_THREAD_ATFORK (etp_atfork_prepare, etp_atfork_parent, etp_atfork_child); |
437 | } |
444 | } |
438 | |
445 | |
439 | static int |
446 | static int ecb_cold |
440 | etp_init (void (*want_poll)(void), void (*done_poll)(void)) |
447 | etp_init (void (*want_poll)(void), void (*done_poll)(void)) |
441 | { |
448 | { |
442 | static pthread_once_t doinit = PTHREAD_ONCE_INIT; |
449 | static pthread_once_t doinit = PTHREAD_ONCE_INIT; |
443 | |
450 | |
444 | pthread_once (&doinit, etp_once_init); |
451 | pthread_once (&doinit, etp_once_init); |
… | |
… | |
449 | return 0; |
456 | return 0; |
450 | } |
457 | } |
451 | |
458 | |
452 | X_THREAD_PROC (etp_proc); |
459 | X_THREAD_PROC (etp_proc); |
453 | |
460 | |
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461 | static void ecb_cold |
454 | static void etp_start_thread (void) |
462 | etp_start_thread (void) |
455 | { |
463 | { |
456 | etp_worker *wrk = calloc (1, sizeof (etp_worker)); |
464 | etp_worker *wrk = calloc (1, sizeof (etp_worker)); |
457 | |
465 | |
458 | /*TODO*/ |
466 | /*TODO*/ |
459 | assert (("unable to allocate worker thread data", wrk)); |
467 | assert (("unable to allocate worker thread data", wrk)); |
… | |
… | |
472 | free (wrk); |
480 | free (wrk); |
473 | |
481 | |
474 | X_UNLOCK (wrklock); |
482 | X_UNLOCK (wrklock); |
475 | } |
483 | } |
476 | |
484 | |
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485 | static void |
477 | static void etp_maybe_start_thread (void) |
486 | etp_maybe_start_thread (void) |
478 | { |
487 | { |
479 | if (expect_true (etp_nthreads () >= wanted)) |
488 | if (ecb_expect_true (etp_nthreads () >= wanted)) |
480 | return; |
489 | return; |
481 | |
490 | |
482 | /* todo: maybe use idle here, but might be less exact */ |
491 | /* todo: maybe use idle here, but might be less exact */ |
483 | if (expect_true (0 <= (int)etp_nthreads () + (int)etp_npending () - (int)etp_nreqs ())) |
492 | if (ecb_expect_true (0 <= (int)etp_nthreads () + (int)etp_npending () - (int)etp_nreqs ())) |
484 | return; |
493 | return; |
485 | |
494 | |
486 | etp_start_thread (); |
495 | etp_start_thread (); |
487 | } |
496 | } |
488 | |
497 | |
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498 | static void ecb_cold |
489 | static void etp_end_thread (void) |
499 | etp_end_thread (void) |
490 | { |
500 | { |
491 | eio_req *req = calloc (1, sizeof (eio_req)); |
501 | eio_req *req = calloc (1, sizeof (eio_req)); |
492 | |
502 | |
493 | req->type = -1; |
503 | req->type = -1; |
494 | req->pri = ETP_PRI_MAX - ETP_PRI_MIN; |
504 | req->pri = ETP_PRI_MAX - ETP_PRI_MIN; |
… | |
… | |
501 | X_LOCK (wrklock); |
511 | X_LOCK (wrklock); |
502 | --started; |
512 | --started; |
503 | X_UNLOCK (wrklock); |
513 | X_UNLOCK (wrklock); |
504 | } |
514 | } |
505 | |
515 | |
506 | static int etp_poll (void) |
516 | static int |
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517 | etp_poll (void) |
507 | { |
518 | { |
508 | unsigned int maxreqs; |
519 | unsigned int maxreqs; |
509 | unsigned int maxtime; |
520 | unsigned int maxtime; |
510 | struct timeval tv_start, tv_now; |
521 | struct timeval tv_start, tv_now; |
511 | |
522 | |
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541 | |
552 | |
542 | X_LOCK (reqlock); |
553 | X_LOCK (reqlock); |
543 | --nreqs; |
554 | --nreqs; |
544 | X_UNLOCK (reqlock); |
555 | X_UNLOCK (reqlock); |
545 | |
556 | |
546 | if (expect_false (req->type == EIO_GROUP && req->size)) |
557 | if (ecb_expect_false (req->type == EIO_GROUP && req->size)) |
547 | { |
558 | { |
548 | req->int1 = 1; /* mark request as delayed */ |
559 | req->int1 = 1; /* mark request as delayed */ |
549 | continue; |
560 | continue; |
550 | } |
561 | } |
551 | else |
562 | else |
552 | { |
563 | { |
553 | int res = ETP_FINISH (req); |
564 | int res = ETP_FINISH (req); |
554 | if (expect_false (res)) |
565 | if (ecb_expect_false (res)) |
555 | return res; |
566 | return res; |
556 | } |
567 | } |
557 | |
568 | |
558 | if (expect_false (maxreqs && !--maxreqs)) |
569 | if (ecb_expect_false (maxreqs && !--maxreqs)) |
559 | break; |
570 | break; |
560 | |
571 | |
561 | if (maxtime) |
572 | if (maxtime) |
562 | { |
573 | { |
563 | gettimeofday (&tv_now, 0); |
574 | gettimeofday (&tv_now, 0); |
… | |
… | |
569 | |
580 | |
570 | errno = EAGAIN; |
581 | errno = EAGAIN; |
571 | return -1; |
582 | return -1; |
572 | } |
583 | } |
573 | |
584 | |
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585 | static void |
574 | static void etp_cancel (ETP_REQ *req) |
586 | etp_cancel (ETP_REQ *req) |
575 | { |
587 | { |
576 | X_LOCK (wrklock); |
588 | X_LOCK (wrklock); |
577 | req->flags |= EIO_FLAG_CANCELLED; |
589 | req->flags |= EIO_FLAG_CANCELLED; |
578 | X_UNLOCK (wrklock); |
590 | X_UNLOCK (wrklock); |
579 | |
591 | |
580 | eio_grp_cancel (req); |
592 | eio_grp_cancel (req); |
581 | } |
593 | } |
582 | |
594 | |
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595 | static void |
583 | static void etp_submit (ETP_REQ *req) |
596 | etp_submit (ETP_REQ *req) |
584 | { |
597 | { |
585 | req->pri -= ETP_PRI_MIN; |
598 | req->pri -= ETP_PRI_MIN; |
586 | |
599 | |
587 | if (expect_false (req->pri < ETP_PRI_MIN - ETP_PRI_MIN)) req->pri = ETP_PRI_MIN - ETP_PRI_MIN; |
600 | if (ecb_expect_false (req->pri < ETP_PRI_MIN - ETP_PRI_MIN)) req->pri = ETP_PRI_MIN - ETP_PRI_MIN; |
588 | if (expect_false (req->pri > ETP_PRI_MAX - ETP_PRI_MIN)) req->pri = ETP_PRI_MAX - ETP_PRI_MIN; |
601 | if (ecb_expect_false (req->pri > ETP_PRI_MAX - ETP_PRI_MIN)) req->pri = ETP_PRI_MAX - ETP_PRI_MIN; |
589 | |
602 | |
590 | if (expect_false (req->type == EIO_GROUP)) |
603 | if (ecb_expect_false (req->type == EIO_GROUP)) |
591 | { |
604 | { |
592 | /* I hope this is worth it :/ */ |
605 | /* I hope this is worth it :/ */ |
593 | X_LOCK (reqlock); |
606 | X_LOCK (reqlock); |
594 | ++nreqs; |
607 | ++nreqs; |
595 | X_UNLOCK (reqlock); |
608 | X_UNLOCK (reqlock); |
… | |
… | |
614 | |
627 | |
615 | etp_maybe_start_thread (); |
628 | etp_maybe_start_thread (); |
616 | } |
629 | } |
617 | } |
630 | } |
618 | |
631 | |
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632 | static void ecb_cold |
619 | static void etp_set_max_poll_time (double nseconds) |
633 | etp_set_max_poll_time (double nseconds) |
620 | { |
634 | { |
621 | if (WORDACCESS_UNSAFE) X_LOCK (reslock); |
635 | if (WORDACCESS_UNSAFE) X_LOCK (reslock); |
622 | max_poll_time = nseconds * EIO_TICKS; |
636 | max_poll_time = nseconds * EIO_TICKS; |
623 | if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); |
637 | if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); |
624 | } |
638 | } |
625 | |
639 | |
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640 | static void ecb_cold |
626 | static void etp_set_max_poll_reqs (unsigned int maxreqs) |
641 | etp_set_max_poll_reqs (unsigned int maxreqs) |
627 | { |
642 | { |
628 | if (WORDACCESS_UNSAFE) X_LOCK (reslock); |
643 | if (WORDACCESS_UNSAFE) X_LOCK (reslock); |
629 | max_poll_reqs = maxreqs; |
644 | max_poll_reqs = maxreqs; |
630 | if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); |
645 | if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); |
631 | } |
646 | } |
632 | |
647 | |
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648 | static void ecb_cold |
633 | static void etp_set_max_idle (unsigned int nthreads) |
649 | etp_set_max_idle (unsigned int nthreads) |
634 | { |
650 | { |
635 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
651 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
636 | max_idle = nthreads; |
652 | max_idle = nthreads; |
637 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
653 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
638 | } |
654 | } |
639 | |
655 | |
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656 | static void ecb_cold |
640 | static void etp_set_idle_timeout (unsigned int seconds) |
657 | etp_set_idle_timeout (unsigned int seconds) |
641 | { |
658 | { |
642 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
659 | if (WORDACCESS_UNSAFE) X_LOCK (reqlock); |
643 | idle_timeout = seconds; |
660 | idle_timeout = seconds; |
644 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
661 | if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); |
645 | } |
662 | } |
646 | |
663 | |
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664 | static void ecb_cold |
647 | static void etp_set_min_parallel (unsigned int nthreads) |
665 | etp_set_min_parallel (unsigned int nthreads) |
648 | { |
666 | { |
649 | if (wanted < nthreads) |
667 | if (wanted < nthreads) |
650 | wanted = nthreads; |
668 | wanted = nthreads; |
651 | } |
669 | } |
652 | |
670 | |
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671 | static void ecb_cold |
653 | static void etp_set_max_parallel (unsigned int nthreads) |
672 | etp_set_max_parallel (unsigned int nthreads) |
654 | { |
673 | { |
655 | if (wanted > nthreads) |
674 | if (wanted > nthreads) |
656 | wanted = nthreads; |
675 | wanted = nthreads; |
657 | |
676 | |
658 | while (started > wanted) |
677 | while (started > wanted) |
659 | etp_end_thread (); |
678 | etp_end_thread (); |
660 | } |
679 | } |
661 | |
680 | |
662 | /*****************************************************************************/ |
681 | /*****************************************************************************/ |
663 | |
682 | |
|
|
683 | static void |
664 | static void grp_try_feed (eio_req *grp) |
684 | grp_try_feed (eio_req *grp) |
665 | { |
685 | { |
666 | while (grp->size < grp->int2 && !EIO_CANCELLED (grp)) |
686 | while (grp->size < grp->int2 && !EIO_CANCELLED (grp)) |
667 | { |
687 | { |
668 | grp->flags &= ~EIO_FLAG_GROUPADD; |
688 | grp->flags &= ~EIO_FLAG_GROUPADD; |
669 | |
689 | |
… | |
… | |
676 | break; |
696 | break; |
677 | } |
697 | } |
678 | } |
698 | } |
679 | } |
699 | } |
680 | |
700 | |
|
|
701 | static int |
681 | static int grp_dec (eio_req *grp) |
702 | grp_dec (eio_req *grp) |
682 | { |
703 | { |
683 | --grp->size; |
704 | --grp->size; |
684 | |
705 | |
685 | /* call feeder, if applicable */ |
706 | /* call feeder, if applicable */ |
686 | grp_try_feed (grp); |
707 | grp_try_feed (grp); |
… | |
… | |
690 | return eio_finish (grp); |
711 | return eio_finish (grp); |
691 | else |
712 | else |
692 | return 0; |
713 | return 0; |
693 | } |
714 | } |
694 | |
715 | |
|
|
716 | void |
695 | void eio_destroy (eio_req *req) |
717 | eio_destroy (eio_req *req) |
696 | { |
718 | { |
697 | if ((req)->flags & EIO_FLAG_PTR1_FREE) free (req->ptr1); |
719 | if ((req)->flags & EIO_FLAG_PTR1_FREE) free (req->ptr1); |
698 | if ((req)->flags & EIO_FLAG_PTR2_FREE) free (req->ptr2); |
720 | if ((req)->flags & EIO_FLAG_PTR2_FREE) free (req->ptr2); |
699 | |
721 | |
700 | EIO_DESTROY (req); |
722 | EIO_DESTROY (req); |
701 | } |
723 | } |
702 | |
724 | |
|
|
725 | static int |
703 | static int eio_finish (eio_req *req) |
726 | eio_finish (eio_req *req) |
704 | { |
727 | { |
705 | int res = EIO_FINISH (req); |
728 | int res = EIO_FINISH (req); |
706 | |
729 | |
707 | if (req->grp) |
730 | if (req->grp) |
708 | { |
731 | { |
… | |
… | |
725 | eio_destroy (req); |
748 | eio_destroy (req); |
726 | |
749 | |
727 | return res; |
750 | return res; |
728 | } |
751 | } |
729 | |
752 | |
|
|
753 | void |
730 | void eio_grp_cancel (eio_req *grp) |
754 | eio_grp_cancel (eio_req *grp) |
731 | { |
755 | { |
732 | for (grp = grp->grp_first; grp; grp = grp->grp_next) |
756 | for (grp = grp->grp_first; grp; grp = grp->grp_next) |
733 | eio_cancel (grp); |
757 | eio_cancel (grp); |
734 | } |
758 | } |
735 | |
759 | |
|
|
760 | void |
736 | void eio_cancel (eio_req *req) |
761 | eio_cancel (eio_req *req) |
737 | { |
762 | { |
738 | etp_cancel (req); |
763 | etp_cancel (req); |
739 | } |
764 | } |
740 | |
765 | |
|
|
766 | void |
741 | void eio_submit (eio_req *req) |
767 | eio_submit (eio_req *req) |
742 | { |
768 | { |
743 | etp_submit (req); |
769 | etp_submit (req); |
744 | } |
770 | } |
745 | |
771 | |
746 | unsigned int eio_nreqs (void) |
772 | unsigned int |
|
|
773 | eio_nreqs (void) |
747 | { |
774 | { |
748 | return etp_nreqs (); |
775 | return etp_nreqs (); |
749 | } |
776 | } |
750 | |
777 | |
751 | unsigned int eio_nready (void) |
778 | unsigned int |
|
|
779 | eio_nready (void) |
752 | { |
780 | { |
753 | return etp_nready (); |
781 | return etp_nready (); |
754 | } |
782 | } |
755 | |
783 | |
756 | unsigned int eio_npending (void) |
784 | unsigned int |
|
|
785 | eio_npending (void) |
757 | { |
786 | { |
758 | return etp_npending (); |
787 | return etp_npending (); |
759 | } |
788 | } |
760 | |
789 | |
761 | unsigned int eio_nthreads (void) |
790 | unsigned int ecb_cold |
|
|
791 | eio_nthreads (void) |
762 | { |
792 | { |
763 | return etp_nthreads (); |
793 | return etp_nthreads (); |
764 | } |
794 | } |
765 | |
795 | |
|
|
796 | void ecb_cold |
766 | void eio_set_max_poll_time (double nseconds) |
797 | eio_set_max_poll_time (double nseconds) |
767 | { |
798 | { |
768 | etp_set_max_poll_time (nseconds); |
799 | etp_set_max_poll_time (nseconds); |
769 | } |
800 | } |
770 | |
801 | |
|
|
802 | void ecb_cold |
771 | void eio_set_max_poll_reqs (unsigned int maxreqs) |
803 | eio_set_max_poll_reqs (unsigned int maxreqs) |
772 | { |
804 | { |
773 | etp_set_max_poll_reqs (maxreqs); |
805 | etp_set_max_poll_reqs (maxreqs); |
774 | } |
806 | } |
775 | |
807 | |
|
|
808 | void ecb_cold |
776 | void eio_set_max_idle (unsigned int nthreads) |
809 | eio_set_max_idle (unsigned int nthreads) |
777 | { |
810 | { |
778 | etp_set_max_idle (nthreads); |
811 | etp_set_max_idle (nthreads); |
779 | } |
812 | } |
780 | |
813 | |
|
|
814 | void ecb_cold |
781 | void eio_set_idle_timeout (unsigned int seconds) |
815 | eio_set_idle_timeout (unsigned int seconds) |
782 | { |
816 | { |
783 | etp_set_idle_timeout (seconds); |
817 | etp_set_idle_timeout (seconds); |
784 | } |
818 | } |
785 | |
819 | |
|
|
820 | void ecb_cold |
786 | void eio_set_min_parallel (unsigned int nthreads) |
821 | eio_set_min_parallel (unsigned int nthreads) |
787 | { |
822 | { |
788 | etp_set_min_parallel (nthreads); |
823 | etp_set_min_parallel (nthreads); |
789 | } |
824 | } |
790 | |
825 | |
|
|
826 | void ecb_cold |
791 | void eio_set_max_parallel (unsigned int nthreads) |
827 | eio_set_max_parallel (unsigned int nthreads) |
792 | { |
828 | { |
793 | etp_set_max_parallel (nthreads); |
829 | etp_set_max_parallel (nthreads); |
794 | } |
830 | } |
795 | |
831 | |
796 | int eio_poll (void) |
832 | int eio_poll (void) |
… | |
… | |
866 | #ifndef HAVE_FUTIMES |
902 | #ifndef HAVE_FUTIMES |
867 | |
903 | |
868 | # undef futimes |
904 | # undef futimes |
869 | # define futimes(fd,times) eio__futimes (fd, times) |
905 | # define futimes(fd,times) eio__futimes (fd, times) |
870 | |
906 | |
|
|
907 | static int |
871 | static int eio__futimes (int fd, const struct timeval tv[2]) |
908 | eio__futimes (int fd, const struct timeval tv[2]) |
872 | { |
909 | { |
873 | errno = ENOSYS; |
910 | errno = ENOSYS; |
874 | return -1; |
911 | return -1; |
875 | } |
912 | } |
876 | |
913 | |
… | |
… | |
880 | # undef fdatasync |
917 | # undef fdatasync |
881 | # define fdatasync(fd) fsync (fd) |
918 | # define fdatasync(fd) fsync (fd) |
882 | #endif |
919 | #endif |
883 | |
920 | |
884 | /* sync_file_range always needs emulation */ |
921 | /* sync_file_range always needs emulation */ |
885 | int |
922 | static int |
886 | eio__sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags) |
923 | eio__sync_file_range (int fd, off_t offset, size_t nbytes, unsigned int flags) |
887 | { |
924 | { |
888 | #if HAVE_SYNC_FILE_RANGE |
925 | #if HAVE_SYNC_FILE_RANGE |
889 | int res; |
926 | int res; |
890 | |
927 | |
… | |
… | |
936 | |
973 | |
937 | /* sendfile always needs emulation */ |
974 | /* sendfile always needs emulation */ |
938 | static ssize_t |
975 | static ssize_t |
939 | eio__sendfile (int ofd, int ifd, off_t offset, size_t count, etp_worker *self) |
976 | eio__sendfile (int ofd, int ifd, off_t offset, size_t count, etp_worker *self) |
940 | { |
977 | { |
|
|
978 | ssize_t written = 0; |
941 | ssize_t res; |
979 | ssize_t res; |
942 | |
980 | |
943 | if (!count) |
981 | if (!count) |
944 | return 0; |
982 | return 0; |
945 | |
983 | |
|
|
984 | for (;;) |
|
|
985 | { |
946 | #if HAVE_SENDFILE |
986 | #if HAVE_SENDFILE |
947 | # if __linux |
987 | # if __linux |
|
|
988 | off_t soffset = offset; |
948 | res = sendfile (ofd, ifd, &offset, count); |
989 | res = sendfile (ofd, ifd, &soffset, count); |
949 | |
990 | |
950 | # elif __FreeBSD__ |
991 | # elif __FreeBSD__ |
951 | /* |
992 | /* |
952 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
993 | * Of course, the freebsd sendfile is a dire hack with no thoughts |
953 | * wasted on making it similar to other I/O functions. |
994 | * wasted on making it similar to other I/O functions. |
954 | */ |
995 | */ |
955 | { |
|
|
956 | off_t sbytes; |
996 | off_t sbytes; |
957 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
997 | res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); |
958 | |
998 | |
959 | #if 0 /* according to the manpage, this is correct, but broken behaviour */ |
999 | #if 0 /* according to the manpage, this is correct, but broken behaviour */ |
960 | /* freebsd' sendfile will return 0 on success */ |
1000 | /* freebsd' sendfile will return 0 on success */ |
961 | /* freebsd 8 documents it as only setting *sbytes on EINTR and EAGAIN, but */ |
1001 | /* freebsd 8 documents it as only setting *sbytes on EINTR and EAGAIN, but */ |
962 | /* not on e.g. EIO or EPIPE - sounds broken */ |
1002 | /* not on e.g. EIO or EPIPE - sounds broken */ |
963 | if ((res < 0 && (errno == EAGAIN || errno == EINTR) && sbytes) || res == 0) |
1003 | if ((res < 0 && (errno == EAGAIN || errno == EINTR) && sbytes) || res == 0) |
964 | res = sbytes; |
1004 | res = sbytes; |
965 | #endif |
1005 | #endif |
966 | |
1006 | |
967 | /* according to source inspection, this is correct, and useful behaviour */ |
1007 | /* according to source inspection, this is correct, and useful behaviour */ |
968 | if (sbytes) |
1008 | if (sbytes) |
969 | res = sbytes; |
1009 | res = sbytes; |
970 | } |
|
|
971 | |
1010 | |
972 | # elif defined (__APPLE__) |
1011 | # elif defined (__APPLE__) |
973 | |
|
|
974 | { |
|
|
975 | off_t sbytes = count; |
1012 | off_t sbytes = count; |
976 | res = sendfile (ifd, ofd, offset, &sbytes, 0, 0); |
1013 | res = sendfile (ifd, ofd, offset, &sbytes, 0, 0); |
977 | |
1014 | |
978 | /* according to the manpage, sbytes is always valid */ |
1015 | /* according to the manpage, sbytes is always valid */ |
979 | if (sbytes) |
1016 | if (sbytes) |
980 | res = sbytes; |
1017 | res = sbytes; |
981 | } |
|
|
982 | |
1018 | |
983 | # elif __hpux |
1019 | # elif __hpux |
984 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
1020 | res = sendfile (ofd, ifd, offset, count, 0, 0); |
985 | |
1021 | |
986 | # elif __solaris |
1022 | # elif __solaris |
987 | { |
|
|
988 | struct sendfilevec vec; |
1023 | struct sendfilevec vec; |
989 | size_t sbytes; |
1024 | size_t sbytes; |
990 | |
1025 | |
991 | vec.sfv_fd = ifd; |
1026 | vec.sfv_fd = ifd; |
992 | vec.sfv_flag = 0; |
1027 | vec.sfv_flag = 0; |
993 | vec.sfv_off = offset; |
1028 | vec.sfv_off = offset; |
994 | vec.sfv_len = count; |
1029 | vec.sfv_len = count; |
995 | |
1030 | |
996 | res = sendfilev (ofd, &vec, 1, &sbytes); |
1031 | res = sendfilev (ofd, &vec, 1, &sbytes); |
997 | |
1032 | |
998 | if (res < 0 && sbytes) |
1033 | if (res < 0 && sbytes) |
999 | res = sbytes; |
1034 | res = sbytes; |
1000 | } |
|
|
1001 | |
1035 | |
1002 | # endif |
1036 | # endif |
1003 | |
1037 | |
1004 | #elif defined (_WIN32) |
1038 | #elif defined (_WIN32) |
1005 | |
|
|
1006 | /* does not work, just for documentation of what would need to be done */ |
1039 | /* does not work, just for documentation of what would need to be done */ |
1007 | { |
1040 | /* actually, cannot be done like this, as TransmitFile changes the file offset, */ |
|
|
1041 | /* libeio guarantees that the file offset does not change, and windows */ |
|
|
1042 | /* has no way to get an independent handle to the same file description */ |
1008 | HANDLE h = TO_SOCKET (ifd); |
1043 | HANDLE h = TO_SOCKET (ifd); |
1009 | SetFilePointer (h, offset, 0, FILE_BEGIN); |
1044 | SetFilePointer (h, offset, 0, FILE_BEGIN); |
1010 | res = TransmitFile (TO_SOCKET (ofd), h, count, 0, 0, 0, 0); |
1045 | res = TransmitFile (TO_SOCKET (ofd), h, count, 0, 0, 0, 0); |
1011 | } |
|
|
1012 | |
1046 | |
1013 | #else |
1047 | #else |
1014 | res = -1; |
1048 | res = -1; |
1015 | errno = ENOSYS; |
1049 | errno = ENOSYS; |
1016 | #endif |
1050 | #endif |
1017 | |
1051 | |
|
|
1052 | /* we assume sendfile can copy at least 128mb in one go */ |
|
|
1053 | if (res <= 128 * 1024 * 1024) |
|
|
1054 | { |
|
|
1055 | if (res > 0) |
|
|
1056 | written += res; |
|
|
1057 | |
|
|
1058 | if (written) |
|
|
1059 | return written; |
|
|
1060 | |
|
|
1061 | break; |
|
|
1062 | } |
|
|
1063 | else |
|
|
1064 | { |
|
|
1065 | /* if we requested more, then probably the kernel was lazy */ |
|
|
1066 | written += res; |
|
|
1067 | offset += res; |
|
|
1068 | count -= res; |
|
|
1069 | |
|
|
1070 | if (!count) |
|
|
1071 | return written; |
|
|
1072 | } |
|
|
1073 | } |
|
|
1074 | |
1018 | if (res < 0 |
1075 | if (res < 0 |
1019 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
1076 | && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK |
1020 | /* BSDs */ |
1077 | /* BSDs */ |
1021 | #ifdef ENOTSUP /* sigh, if the steenking pile called openbsd would only try to at least compile posix code... */ |
1078 | #ifdef ENOTSUP /* sigh, if the steenking pile called openbsd would only try to at least compile posix code... */ |
1022 | || errno == ENOTSUP |
1079 | || errno == ENOTSUP |
1023 | #endif |
1080 | #endif |
… | |
… | |
1309 | /* skip . and .. entries */ |
1366 | /* skip . and .. entries */ |
1310 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
1367 | if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2]))) |
1311 | { |
1368 | { |
1312 | int len = D_NAMLEN (entp) + 1; |
1369 | int len = D_NAMLEN (entp) + 1; |
1313 | |
1370 | |
1314 | while (expect_false (namesoffs + len > namesalloc)) |
1371 | while (ecb_expect_false (namesoffs + len > namesalloc)) |
1315 | { |
1372 | { |
1316 | namesalloc *= 2; |
1373 | namesalloc *= 2; |
1317 | X_LOCK (wrklock); |
1374 | X_LOCK (wrklock); |
1318 | req->ptr2 = names = realloc (names, namesalloc); |
1375 | req->ptr2 = names = realloc (names, namesalloc); |
1319 | X_UNLOCK (wrklock); |
1376 | X_UNLOCK (wrklock); |
… | |
… | |
1326 | |
1383 | |
1327 | if (dents) |
1384 | if (dents) |
1328 | { |
1385 | { |
1329 | struct eio_dirent *ent; |
1386 | struct eio_dirent *ent; |
1330 | |
1387 | |
1331 | if (expect_false (dentoffs == dentalloc)) |
1388 | if (ecb_expect_false (dentoffs == dentalloc)) |
1332 | { |
1389 | { |
1333 | dentalloc *= 2; |
1390 | dentalloc *= 2; |
1334 | X_LOCK (wrklock); |
1391 | X_LOCK (wrklock); |
1335 | req->ptr1 = dents = realloc (dents, dentalloc * sizeof (eio_dirent)); |
1392 | req->ptr1 = dents = realloc (dents, dentalloc * sizeof (eio_dirent)); |
1336 | X_UNLOCK (wrklock); |
1393 | X_UNLOCK (wrklock); |
… | |
… | |
1496 | |
1553 | |
1497 | #if !(_POSIX_MAPPED_FILES && _POSIX_SYNCHRONIZED_IO) |
1554 | #if !(_POSIX_MAPPED_FILES && _POSIX_SYNCHRONIZED_IO) |
1498 | # define eio__msync(a,b,c) ((errno = ENOSYS), -1) |
1555 | # define eio__msync(a,b,c) ((errno = ENOSYS), -1) |
1499 | #else |
1556 | #else |
1500 | |
1557 | |
1501 | int |
1558 | static int |
1502 | eio__msync (void *mem, size_t len, int flags) |
1559 | eio__msync (void *mem, size_t len, int flags) |
1503 | { |
1560 | { |
1504 | eio_page_align (&mem, &len); |
1561 | eio_page_align (&mem, &len); |
1505 | |
1562 | |
1506 | if (EIO_MS_ASYNC != MS_SYNC |
1563 | if (EIO_MS_ASYNC != MS_SYNC |
… | |
… | |
1516 | return msync (mem, len, flags); |
1573 | return msync (mem, len, flags); |
1517 | } |
1574 | } |
1518 | |
1575 | |
1519 | #endif |
1576 | #endif |
1520 | |
1577 | |
1521 | int |
1578 | static int |
1522 | eio__mtouch (void *mem, size_t len, int flags) |
1579 | eio__mtouch (eio_req *req) |
1523 | { |
1580 | { |
|
|
1581 | void *mem = req->ptr2; |
|
|
1582 | size_t len = req->size; |
|
|
1583 | int flags = req->int1; |
|
|
1584 | |
1524 | eio_page_align (&mem, &len); |
1585 | eio_page_align (&mem, &len); |
1525 | |
1586 | |
1526 | { |
1587 | { |
1527 | intptr_t addr = (intptr_t)mem; |
1588 | intptr_t addr = (intptr_t)mem; |
1528 | intptr_t end = addr + len; |
1589 | intptr_t end = addr + len; |
1529 | intptr_t page = eio_pagesize (); |
1590 | intptr_t page = eio_pagesize (); |
1530 | |
1591 | |
1531 | if (addr < end) |
1592 | if (addr < end) |
1532 | if (flags & EIO_MT_MODIFY) /* modify */ |
1593 | if (flags & EIO_MT_MODIFY) /* modify */ |
1533 | do { *((volatile sig_atomic_t *)addr) |= 0; } while ((addr += page) < len); |
1594 | do { *((volatile sig_atomic_t *)addr) |= 0; } while ((addr += page) < len && !EIO_CANCELLED (req)); |
1534 | else |
1595 | else |
1535 | do { *((volatile sig_atomic_t *)addr) ; } while ((addr += page) < len); |
1596 | do { *((volatile sig_atomic_t *)addr) ; } while ((addr += page) < len && !EIO_CANCELLED (req)); |
1536 | } |
1597 | } |
1537 | |
1598 | |
1538 | return 0; |
1599 | return 0; |
1539 | } |
1600 | } |
1540 | |
1601 | |
… | |
… | |
1628 | return 0; |
1689 | return 0; |
1629 | } |
1690 | } |
1630 | |
1691 | |
1631 | /*****************************************************************************/ |
1692 | /*****************************************************************************/ |
1632 | |
1693 | |
|
|
1694 | int ecb_cold |
1633 | int eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
1695 | eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
1634 | { |
1696 | { |
1635 | return etp_init (want_poll, done_poll); |
1697 | return etp_init (want_poll, done_poll); |
1636 | } |
1698 | } |
1637 | |
1699 | |
|
|
1700 | ecb_inline void |
1638 | static void eio_api_destroy (eio_req *req) |
1701 | eio_api_destroy (eio_req *req) |
1639 | { |
1702 | { |
1640 | free (req); |
1703 | free (req); |
1641 | } |
1704 | } |
1642 | |
1705 | |
1643 | #define REQ(rtype) \ |
1706 | #define REQ(rtype) \ |
… | |
… | |
1662 | { \ |
1725 | { \ |
1663 | eio_api_destroy (req); \ |
1726 | eio_api_destroy (req); \ |
1664 | return 0; \ |
1727 | return 0; \ |
1665 | } |
1728 | } |
1666 | |
1729 | |
|
|
1730 | static void |
1667 | static void eio_execute (etp_worker *self, eio_req *req) |
1731 | eio_execute (etp_worker *self, eio_req *req) |
1668 | { |
1732 | { |
1669 | switch (req->type) |
1733 | switch (req->type) |
1670 | { |
1734 | { |
1671 | case EIO_READ: ALLOC (req->size); |
1735 | case EIO_READ: ALLOC (req->size); |
1672 | req->result = req->offs >= 0 |
1736 | req->result = req->offs >= 0 |
… | |
… | |
1714 | |
1778 | |
1715 | case EIO_SYNC: req->result = 0; sync (); break; |
1779 | case EIO_SYNC: req->result = 0; sync (); break; |
1716 | case EIO_FSYNC: req->result = fsync (req->int1); break; |
1780 | case EIO_FSYNC: req->result = fsync (req->int1); break; |
1717 | case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; |
1781 | case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; |
1718 | case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break; |
1782 | case EIO_MSYNC: req->result = eio__msync (req->ptr2, req->size, req->int1); break; |
1719 | case EIO_MTOUCH: req->result = eio__mtouch (req->ptr2, req->size, req->int1); break; |
1783 | case EIO_MTOUCH: req->result = eio__mtouch (req); break; |
1720 | case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break; |
1784 | case EIO_MLOCK: req->result = eio__mlock (req->ptr2, req->size); break; |
1721 | case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break; |
1785 | case EIO_MLOCKALL: req->result = eio__mlockall (req->int1); break; |
1722 | case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break; |
1786 | case EIO_SYNC_FILE_RANGE: req->result = eio__sync_file_range (req->int1, req->offs, req->size, req->int2); break; |
1723 | |
1787 | |
1724 | case EIO_READDIR: eio__scandir (req, self); break; |
1788 | case EIO_READDIR: eio__scandir (req, self); break; |
… | |
… | |
1768 | case EIO_NOP: |
1832 | case EIO_NOP: |
1769 | req->result = 0; |
1833 | req->result = 0; |
1770 | break; |
1834 | break; |
1771 | |
1835 | |
1772 | case EIO_CUSTOM: |
1836 | case EIO_CUSTOM: |
1773 | ((void (*)(eio_req *))req->feed) (req); |
1837 | req->feed (req); |
1774 | break; |
1838 | break; |
1775 | |
1839 | |
1776 | default: |
1840 | default: |
1777 | errno = ENOSYS; |
1841 | errno = ENOSYS; |
1778 | req->result = -1; |
1842 | req->result = -1; |
… | |
… | |
1999 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
2063 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
2000 | { |
2064 | { |
2001 | return eio__2path (EIO_RENAME, path, new_path, pri, cb, data); |
2065 | return eio__2path (EIO_RENAME, path, new_path, pri, cb, data); |
2002 | } |
2066 | } |
2003 | |
2067 | |
2004 | eio_req *eio_custom (eio_cb execute, int pri, eio_cb cb, void *data) |
2068 | eio_req *eio_custom (void (*execute)(eio_req *), int pri, eio_cb cb, void *data) |
2005 | { |
2069 | { |
2006 | REQ (EIO_CUSTOM); req->feed = (void (*)(eio_req *))execute; SEND; |
2070 | REQ (EIO_CUSTOM); req->feed = execute; SEND; |
2007 | } |
2071 | } |
2008 | |
2072 | |
2009 | #endif |
2073 | #endif |
2010 | |
2074 | |
2011 | eio_req *eio_grp (eio_cb cb, void *data) |
2075 | eio_req *eio_grp (eio_cb cb, void *data) |
… | |
… | |
2020 | #undef SEND |
2084 | #undef SEND |
2021 | |
2085 | |
2022 | /*****************************************************************************/ |
2086 | /*****************************************************************************/ |
2023 | /* grp functions */ |
2087 | /* grp functions */ |
2024 | |
2088 | |
|
|
2089 | void |
2025 | void eio_grp_feed (eio_req *grp, void (*feed)(eio_req *req), int limit) |
2090 | eio_grp_feed (eio_req *grp, void (*feed)(eio_req *req), int limit) |
2026 | { |
2091 | { |
2027 | grp->int2 = limit; |
2092 | grp->int2 = limit; |
2028 | grp->feed = feed; |
2093 | grp->feed = feed; |
2029 | |
2094 | |
2030 | grp_try_feed (grp); |
2095 | grp_try_feed (grp); |
2031 | } |
2096 | } |
2032 | |
2097 | |
|
|
2098 | void |
2033 | void eio_grp_limit (eio_req *grp, int limit) |
2099 | eio_grp_limit (eio_req *grp, int limit) |
2034 | { |
2100 | { |
2035 | grp->int2 = limit; |
2101 | grp->int2 = limit; |
2036 | |
2102 | |
2037 | grp_try_feed (grp); |
2103 | grp_try_feed (grp); |
2038 | } |
2104 | } |
2039 | |
2105 | |
|
|
2106 | void |
2040 | void eio_grp_add (eio_req *grp, eio_req *req) |
2107 | eio_grp_add (eio_req *grp, eio_req *req) |
2041 | { |
2108 | { |
2042 | assert (("cannot add requests to IO::AIO::GRP after the group finished", grp->int1 != 2)); |
2109 | assert (("cannot add requests to IO::AIO::GRP after the group finished", grp->int1 != 2)); |
2043 | |
2110 | |
2044 | grp->flags |= EIO_FLAG_GROUPADD; |
2111 | grp->flags |= EIO_FLAG_GROUPADD; |
2045 | |
2112 | |
… | |
… | |
2056 | } |
2123 | } |
2057 | |
2124 | |
2058 | /*****************************************************************************/ |
2125 | /*****************************************************************************/ |
2059 | /* misc garbage */ |
2126 | /* misc garbage */ |
2060 | |
2127 | |
|
|
2128 | ssize_t |
2061 | ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count) |
2129 | eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count) |
2062 | { |
2130 | { |
2063 | etp_worker wrk; |
2131 | etp_worker wrk; |
2064 | ssize_t ret; |
2132 | ssize_t ret; |
2065 | |
2133 | |
2066 | wrk.dbuf = 0; |
2134 | wrk.dbuf = 0; |