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Comparing libeio/eio.c (file contents):
Revision 1.4 by root, Sun May 11 00:10:15 2008 UTC vs.
Revision 1.13 by root, Tue May 13 19:34:11 2008 UTC

… …
8#include <errno.h> 8#include <errno.h>
9#include <sys/types.h> 9#include <sys/types.h>
10#include <sys/stat.h> 10#include <sys/stat.h>
11#include <limits.h> 11#include <limits.h>
12#include <fcntl.h> 12#include <fcntl.h>
13#include <sched.h> 13#include <assert.h>
14 14
15#ifndef EIO_FINISH 15#ifndef EIO_FINISH
16# define EIO_FINISH(req) ((req)->finish) && !EIO_CANCELLED (req) ? (req)->finish (req) : 0 16# define EIO_FINISH(req) ((req)->finish) && !EIO_CANCELLED (req) ? (req)->finish (req) : 0
17#endif 17#endif
18 18
… …
41# ifndef EIO_STRUCT_DIRENT 41# ifndef EIO_STRUCT_DIRENT
42# define EIO_STRUCT_DIRENT struct dirent 42# define EIO_STRUCT_DIRENT struct dirent
43# endif 43# endif
44 44
45#endif 45#endif
46
47# ifndef EIO_STRUCT_STAT
48# define EIO_STRUCT_STAT struct stat
49# endif
50 46
51#if HAVE_SENDFILE 47#if HAVE_SENDFILE
52# if __linux 48# if __linux
53# include <sys/sendfile.h> 49# include <sys/sendfile.h>
54# elif __freebsd 50# elif __freebsd
… …
74/* buffer size for various temporary buffers */ 70/* buffer size for various temporary buffers */
75#define EIO_BUFSIZE 65536 71#define EIO_BUFSIZE 65536
76 72
77#define dBUF \ 73#define dBUF \
78 char *eio_buf; \ 74 char *eio_buf; \
79 X_LOCK (wrklock); \ 75 X_LOCK (etplock); \
80 self->dbuf = eio_buf = malloc (EIO_BUFSIZE); \ 76 self->dbuf = eio_buf = malloc (EIO_BUFSIZE); \
81 X_UNLOCK (wrklock); \ 77 X_UNLOCK (etplock); \
78 errno = ENOMEM; \
82 if (!eio_buf) \ 79 if (!eio_buf) \
83 return -1; 80 return -1;
84 81
85#define EIO_TICKS ((1000000 + 1023) >> 10) 82#define EIO_TICKS ((1000000 + 1023) >> 10)
86 83
87static void (*want_poll_cb) (void); 84/*****************************************************************************/
88static void (*done_poll_cb) (void);
89
90static unsigned int max_poll_time = 0;
91static unsigned int max_poll_reqs = 0;
92 85
93/* calculcate time difference in ~1/EIO_TICKS of a second */ 86/* calculcate time difference in ~1/EIO_TICKS of a second */
94static int tvdiff (struct timeval *tv1, struct timeval *tv2) 87static int tvdiff (struct timeval *tv1, struct timeval *tv2)
95{ 88{
96 return (tv2->tv_sec - tv1->tv_sec ) * EIO_TICKS 89 return (tv2->tv_sec - tv1->tv_sec ) * EIO_TICKS
97 + ((tv2->tv_usec - tv1->tv_usec) >> 10); 90 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
98} 91}
99 92
100static unsigned int started, idle, wanted; 93static unsigned int started, idle, wanted = 4;
101 94
102/* worker threads management */ 95typedef struct etp_pool
96{
97 void (*want_poll_cb) (void);
98 void (*done_poll_cb) (void);
99
100 unsigned int max_poll_time;
101 unsigned int max_poll_reqs;
102} etp_pool;
103
104static volatile unsigned int nreqs, nready, npending;
105static volatile unsigned int max_idle = 4;
106
107static mutex_t etplock = X_MUTEX_INIT;
103static mutex_t wrklock = X_MUTEX_INIT; 108static mutex_t reslock = X_MUTEX_INIT;
109static mutex_t reqlock = X_MUTEX_INIT;
110static cond_t reqwait = X_COND_INIT;
104 111
105typedef struct worker { 112typedef struct worker
113{
106 /* locked by wrklock */ 114 /* locked by etplock */
107 struct worker *prev, *next; 115 struct worker *prev, *next;
108 116
109 thread_t tid; 117 thread_t tid;
110 118
111 /* locked by reslock, reqlock or wrklock */ 119 /* locked by reslock, reqlock or etplock */
112 eio_req *req; /* currently processed request */ 120 eio_req *req; /* currently processed request */
113 void *dbuf; 121 void *dbuf;
114 DIR *dirp; 122 DIR *dirp;
115} worker; 123} worker;
116 124
117static worker wrk_first = { &wrk_first, &wrk_first, 0 }; 125static worker wrk_first = { &wrk_first, &wrk_first, 0 }; /* NOT etp */
126
127/* worker threads management */
118 128
119static void worker_clear (worker *wrk) 129static void worker_clear (worker *wrk)
120{ 130{
121 if (wrk->dirp) 131 if (wrk->dirp)
122 { 132 {
… …
136 wrk->next->prev = wrk->prev; 146 wrk->next->prev = wrk->prev;
137 wrk->prev->next = wrk->next; 147 wrk->prev->next = wrk->next;
138 148
139 free (wrk); 149 free (wrk);
140} 150}
141
142static volatile unsigned int nreqs, nready, npending;
143static volatile unsigned int max_idle = 4;
144
145static mutex_t reslock = X_MUTEX_INIT;
146static mutex_t reqlock = X_MUTEX_INIT;
147static cond_t reqwait = X_COND_INIT;
148 151
149unsigned int eio_nreqs (void) 152unsigned int eio_nreqs (void)
150{ 153{
151 return nreqs; 154 return nreqs;
152} 155}
… …
236 } 239 }
237 240
238 abort (); 241 abort ();
239} 242}
240 243
244static void etp_atfork_prepare (void)
245{
246 X_LOCK (etplock);
247 X_LOCK (reqlock);
248 X_LOCK (reslock);
249#if !HAVE_PREADWRITE
250 X_LOCK (preadwritelock);
251#endif
252#if !HAVE_READDIR_R
253 X_LOCK (readdirlock);
254#endif
255}
256
257static void etp_atfork_parent (void)
258{
259#if !HAVE_READDIR_R
260 X_UNLOCK (readdirlock);
261#endif
262#if !HAVE_PREADWRITE
263 X_UNLOCK (preadwritelock);
264#endif
265 X_UNLOCK (reslock);
266 X_UNLOCK (reqlock);
267 X_UNLOCK (etplock);
268}
269
270static void etp_atfork_child (void)
271{
272 eio_req *prv;
273
274 while (prv = reqq_shift (&req_queue))
275 eio_destroy (prv);
276
277 while (prv = reqq_shift (&res_queue))
278 eio_destroy (prv);
279
280 while (wrk_first.next != &wrk_first)
281 {
282 worker *wrk = wrk_first.next;
283
284 if (wrk->req)
285 eio_destroy (wrk->req);
286
287 worker_clear (wrk);
288 worker_free (wrk);
289 }
290
291 started = 0;
292 idle = 0;
293 nreqs = 0;
294 nready = 0;
295 npending = 0;
296
297 etp_atfork_parent ();
298}
299
300static void
301etp_once_init (void)
302{
303 X_THREAD_ATFORK (etp_atfork_prepare, etp_atfork_parent, etp_atfork_child);
304}
305
306static int
307etp_init (etp_pool *etp, void (*want_poll)(void), void (*done_poll)(void))
308{
309 static pthread_once_t doinit = PTHREAD_ONCE_INIT;
310
311 pthread_once (&doinit, etp_once_init);
312
313 memset (etp, 0, sizeof *etp);
314
315 etp->want_poll_cb = want_poll;
316 etp->done_poll_cb = done_poll;
317}
318
319static etp_pool etp;
320
321/*****************************************************************************/
322
241static void grp_try_feed (eio_req *grp) 323static void grp_try_feed (eio_req *grp)
242{ 324{
243 while (grp->size < grp->int2 && !EIO_CANCELLED (grp)) 325 while (grp->size < grp->int2 && !EIO_CANCELLED (grp))
244 { 326 {
245 int old_len = grp->size; 327 int old_len = grp->size;
… …
271 return 0; 353 return 0;
272} 354}
273 355
274void eio_destroy (eio_req *req) 356void eio_destroy (eio_req *req)
275{ 357{
358 if ((req)->flags & EIO_FLAG_PTR1_FREE) free (req->ptr1);
276 if ((req)->flags & EIO_FLAG_PTR2_FREE) 359 if ((req)->flags & EIO_FLAG_PTR2_FREE) free (req->ptr2);
277 free (req->ptr2);
278 360
279 EIO_DESTROY (req); 361 EIO_DESTROY (req);
280} 362}
281 363
282static int eio_finish (eio_req *req) 364static int eio_finish (eio_req *req)
… …
312 eio_cancel (grp); 394 eio_cancel (grp);
313} 395}
314 396
315void eio_cancel (eio_req *req) 397void eio_cancel (eio_req *req)
316{ 398{
399 X_LOCK (etplock);
317 req->flags |= EIO_FLAG_CANCELLED; 400 req->flags |= EIO_FLAG_CANCELLED;
401 X_UNLOCK (etplock);
318 402
319 eio_grp_cancel (req); 403 eio_grp_cancel (req);
320} 404}
321 405
322X_THREAD_PROC (eio_proc); 406X_THREAD_PROC (eio_proc);
323 407
324static void start_thread (void) 408static void start_thread (void)
325{ 409{
326 worker *wrk = calloc (1, sizeof (worker)); 410 worker *wrk = calloc (1, sizeof (worker));
327 411
328 if (!wrk) 412 /*TODO*/
329 croak ("unable to allocate worker thread data"); 413 assert (("unable to allocate worker thread data", wrk));
330 414
331 X_LOCK (wrklock); 415 X_LOCK (etplock);
332 416
333 if (thread_create (&wrk->tid, eio_proc, (void *)wrk)) 417 if (thread_create (&wrk->tid, eio_proc, (void *)wrk))
334 { 418 {
335 wrk->prev = &wrk_first; 419 wrk->prev = &wrk_first;
336 wrk->next = wrk_first.next; 420 wrk->next = wrk_first.next;
… …
339 ++started; 423 ++started;
340 } 424 }
341 else 425 else
342 free (wrk); 426 free (wrk);
343 427
344 X_UNLOCK (wrklock); 428 X_UNLOCK (etplock);
345} 429}
346 430
347static void maybe_start_thread (void) 431static void maybe_start_thread (void)
348{ 432{
349 if (eio_nthreads () >= wanted) 433 if (eio_nthreads () >= wanted)
… …
356 start_thread (); 440 start_thread ();
357} 441}
358 442
359void eio_submit (eio_req *req) 443void eio_submit (eio_req *req)
360{ 444{
445 req->pri += EIO_PRI_BIAS;
446
447 if (req->pri < EIO_PRI_MIN + EIO_PRI_BIAS) req->pri = EIO_PRI_MIN + EIO_PRI_BIAS;
448 if (req->pri > EIO_PRI_MAX + EIO_PRI_BIAS) req->pri = EIO_PRI_MAX + EIO_PRI_BIAS;
449
361 ++nreqs; 450 ++nreqs;
362 451
363 X_LOCK (reqlock); 452 X_LOCK (reqlock);
364 ++nready; 453 ++nready;
365 reqq_push (&req_queue, req); 454 reqq_push (&req_queue, req);
… …
379 X_LOCK (reqlock); 468 X_LOCK (reqlock);
380 reqq_push (&req_queue, req); 469 reqq_push (&req_queue, req);
381 X_COND_SIGNAL (reqwait); 470 X_COND_SIGNAL (reqwait);
382 X_UNLOCK (reqlock); 471 X_UNLOCK (reqlock);
383 472
384 X_LOCK (wrklock); 473 X_LOCK (etplock);
385 --started; 474 --started;
386 X_UNLOCK (wrklock); 475 X_UNLOCK (etplock);
387} 476}
388 477
389void eio_set_max_poll_time (double nseconds) 478void eio_set_max_poll_time (double nseconds)
390{ 479{
391 if (WORDACCESS_UNSAFE) X_LOCK (reqlock); 480 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
392 max_poll_time = nseconds; 481 etp.max_poll_time = nseconds;
393 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); 482 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
394} 483}
395 484
396void eio_set_max_poll_reqs (unsigned int maxreqs) 485void eio_set_max_poll_reqs (unsigned int maxreqs)
397{ 486{
398 if (WORDACCESS_UNSAFE) X_LOCK (reqlock); 487 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
399 max_poll_reqs = maxreqs; 488 etp.max_poll_reqs = maxreqs;
400 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock); 489 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
401} 490}
402 491
403void eio_set_max_idle (unsigned int nthreads) 492void eio_set_max_idle (unsigned int nthreads)
404{ 493{
… …
422 end_thread (); 511 end_thread ();
423} 512}
424 513
425int eio_poll (void) 514int eio_poll (void)
426{ 515{
427 int maxreqs = max_poll_reqs; 516 int maxreqs = etp.max_poll_reqs;
428 struct timeval tv_start, tv_now; 517 struct timeval tv_start, tv_now;
429 eio_req *req; 518 eio_req *req;
430 519
431 if (max_poll_time) 520 if (etp.max_poll_time)
432 gettimeofday (&tv_start, 0); 521 gettimeofday (&tv_start, 0);
433 522
434 for (;;) 523 for (;;)
435 { 524 {
436 maybe_start_thread (); 525 maybe_start_thread ();
… …
440 529
441 if (req) 530 if (req)
442 { 531 {
443 --npending; 532 --npending;
444 533
445 if (!res_queue.size && done_poll_cb) 534 if (!res_queue.size && etp.done_poll_cb)
446 done_poll_cb (); 535 etp.done_poll_cb ();
447 } 536 }
448 537
449 X_UNLOCK (reslock); 538 X_UNLOCK (reslock);
450 539
451 if (!req) 540 if (!req)
… …
466 } 555 }
467 556
468 if (maxreqs && !--maxreqs) 557 if (maxreqs && !--maxreqs)
469 break; 558 break;
470 559
471 if (max_poll_time) 560 if (etp.max_poll_time)
472 { 561 {
473 gettimeofday (&tv_now, 0); 562 gettimeofday (&tv_now, 0);
474 563
475 if (tvdiff (&tv_start, &tv_now) >= max_poll_time) 564 if (tvdiff (&tv_start, &tv_now) >= etp.max_poll_time)
476 break; 565 break;
477 } 566 }
478 } 567 }
479 568
480 errno = EAGAIN; 569 errno = EAGAIN;
… …
483 572
484/*****************************************************************************/ 573/*****************************************************************************/
485/* work around various missing functions */ 574/* work around various missing functions */
486 575
487#if !HAVE_PREADWRITE 576#if !HAVE_PREADWRITE
488# define pread aio_pread 577# define pread eio__pread
489# define pwrite aio_pwrite 578# define pwrite eio__pwrite
490 579
491/* 580/*
492 * make our pread/pwrite safe against themselves, but not against 581 * make our pread/pwrite safe against themselves, but not against
493 * normal read/write by using a mutex. slows down execution a lot, 582 * normal read/write by using a mutex. slows down execution a lot,
494 * but that's your problem, not mine. 583 * but that's your problem, not mine.
495 */ 584 */
496static mutex_t preadwritelock = X_MUTEX_INIT; 585static mutex_t preadwritelock = X_MUTEX_INIT;
497 586
498static ssize_t pread (int fd, void *buf, size_t count, off_t offset) 587static ssize_t
588eio__pread (int fd, void *buf, size_t count, off_t offset)
499{ 589{
500 ssize_t res; 590 ssize_t res;
501 off_t ooffset; 591 off_t ooffset;
502 592
503 X_LOCK (preadwritelock); 593 X_LOCK (preadwritelock);
… …
508 X_UNLOCK (preadwritelock); 598 X_UNLOCK (preadwritelock);
509 599
510 return res; 600 return res;
511} 601}
512 602
513static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 603static ssize_t
604eio__pwrite (int fd, void *buf, size_t count, off_t offset)
514{ 605{
515 ssize_t res; 606 ssize_t res;
516 off_t ooffset; 607 off_t ooffset;
517 608
518 X_LOCK (preadwritelock); 609 X_LOCK (preadwritelock);
… …
526} 617}
527#endif 618#endif
528 619
529#ifndef HAVE_FUTIMES 620#ifndef HAVE_FUTIMES
530 621
531# define utimes(path,times) aio_utimes (path, times) 622# define utimes(path,times) eio__utimes (path, times)
532# define futimes(fd,times) aio_futimes (fd, times) 623# define futimes(fd,times) eio__futimes (fd, times)
533 624
625static int
534static int aio_utimes (const char *filename, const struct timeval times[2]) 626eio__utimes (const char *filename, const struct timeval times[2])
535{ 627{
536 if (times) 628 if (times)
537 { 629 {
538 struct utimbuf buf; 630 struct utimbuf buf;
539 631
… …
544 } 636 }
545 else 637 else
546 return utime (filename, 0); 638 return utime (filename, 0);
547} 639}
548 640
549static int aio_futimes (int fd, const struct timeval tv[2]) 641static int eio__futimes (int fd, const struct timeval tv[2])
550{ 642{
551 errno = ENOSYS; 643 errno = ENOSYS;
552 return -1; 644 return -1;
553} 645}
554 646
… …
557#if !HAVE_FDATASYNC 649#if !HAVE_FDATASYNC
558# define fdatasync fsync 650# define fdatasync fsync
559#endif 651#endif
560 652
561#if !HAVE_READAHEAD 653#if !HAVE_READAHEAD
562# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self) 654# define readahead(fd,offset,count) eio__readahead (fd, offset, count, self)
563 655
656static ssize_t
564static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 657eio__readahead (int fd, off_t offset, size_t count, worker *self)
565{ 658{
566 size_t todo = count; 659 size_t todo = count;
567 dBUF; 660 dBUF;
568 661
569 while (todo > 0) 662 while (todo > 0)
… …
580} 673}
581 674
582#endif 675#endif
583 676
584#if !HAVE_READDIR_R 677#if !HAVE_READDIR_R
585# define readdir_r aio_readdir_r 678# define readdir_r eio__readdir_r
586 679
587static mutex_t readdirlock = X_MUTEX_INIT; 680static mutex_t readdirlock = X_MUTEX_INIT;
588 681
589static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res) 682static int
683eio__readdir_r (DIR *dirp, EIO_STRUCT_DIRENT *ent, EIO_STRUCT_DIRENT **res)
590{ 684{
591 X_DIRENT *e; 685 EIO_STRUCT_DIRENT *e;
592 int errorno; 686 int errorno;
593 687
594 X_LOCK (readdirlock); 688 X_LOCK (readdirlock);
595 689
596 e = readdir (dirp); 690 e = readdir (dirp);
… …
610 return e ? 0 : -1; 704 return e ? 0 : -1;
611} 705}
612#endif 706#endif
613 707
614/* sendfile always needs emulation */ 708/* sendfile always needs emulation */
709static ssize_t
615static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) 710eio__sendfile (int ofd, int ifd, off_t offset, size_t count, worker *self)
616{ 711{
617 ssize_t res; 712 ssize_t res;
618 713
619 if (!count) 714 if (!count)
620 return 0; 715 return 0;
… …
703 798
704 return res; 799 return res;
705} 800}
706 801
707/* read a full directory */ 802/* read a full directory */
803static void
708static void scandir_ (eio_req *req, worker *self) 804eio__scandir (eio_req *req, worker *self)
709{ 805{
710 DIR *dirp; 806 DIR *dirp;
711 union 807 union
712 { 808 {
713 EIO_STRUCT_DIRENT d; 809 EIO_STRUCT_DIRENT d;
… …
717 char *name, *names; 813 char *name, *names;
718 int memlen = 4096; 814 int memlen = 4096;
719 int memofs = 0; 815 int memofs = 0;
720 int res = 0; 816 int res = 0;
721 817
722 X_LOCK (wrklock); 818 X_LOCK (etplock);
723 self->dirp = dirp = opendir (req->ptr1); 819 self->dirp = dirp = opendir (req->ptr1);
724 self->dbuf = u = malloc (sizeof (*u)); 820 self->dbuf = u = malloc (sizeof (*u));
725 req->flags |= EIO_FLAG_PTR2_FREE; 821 req->flags |= EIO_FLAG_PTR2_FREE;
726 req->ptr2 = names = malloc (memlen); 822 req->ptr2 = names = malloc (memlen);
727 X_UNLOCK (wrklock); 823 X_UNLOCK (etplock);
728 824
729 if (dirp && u && names) 825 if (dirp && u && names)
730 for (;;) 826 for (;;)
731 { 827 {
732 errno = 0; 828 errno = 0;
… …
744 res++; 840 res++;
745 841
746 while (memofs + len > memlen) 842 while (memofs + len > memlen)
747 { 843 {
748 memlen *= 2; 844 memlen *= 2;
749 X_LOCK (wrklock); 845 X_LOCK (etplock);
750 req->ptr2 = names = realloc (names, memlen); 846 req->ptr2 = names = realloc (names, memlen);
751 X_UNLOCK (wrklock); 847 X_UNLOCK (etplock);
752 848
753 if (!names) 849 if (!names)
754 break; 850 break;
755 } 851 }
756 852
… …
764 860
765 req->result = res; 861 req->result = res;
766} 862}
767 863
768/*****************************************************************************/ 864/*****************************************************************************/
865
866#define ALLOC(len) \
867 if (!req->ptr2) \
868 { \
869 X_LOCK (etplock); \
870 req->flags |= EIO_FLAG_PTR2_FREE; \
871 X_UNLOCK (etplock); \
872 req->ptr2 = malloc (len); \
873 if (!req->ptr2) \
874 { \
875 errno = ENOMEM; \
876 req->result = -1; \
877 break; \
878 } \
879 }
769 880
770X_THREAD_PROC (eio_proc) 881X_THREAD_PROC (eio_proc)
771{ 882{
772 eio_req *req; 883 eio_req *req;
773 struct timespec ts; 884 struct timespec ts;
… …
795 { 906 {
796 if (idle > max_idle) 907 if (idle > max_idle)
797 { 908 {
798 --idle; 909 --idle;
799 X_UNLOCK (reqlock); 910 X_UNLOCK (reqlock);
800 X_LOCK (wrklock); 911 X_LOCK (etplock);
801 --started; 912 --started;
802 X_UNLOCK (wrklock); 913 X_UNLOCK (etplock);
803 goto quit; 914 goto quit;
804 } 915 }
805 916
806 /* we are allowed to idle, so do so without any timeout */ 917 /* we are allowed to idle, so do so without any timeout */
807 X_COND_WAIT (reqwait, reqlock); 918 X_COND_WAIT (reqwait, reqlock);
… …
818 errno = 0; /* strictly unnecessary */ 929 errno = 0; /* strictly unnecessary */
819 930
820 if (!EIO_CANCELLED (req)) 931 if (!EIO_CANCELLED (req))
821 switch (req->type) 932 switch (req->type)
822 { 933 {
934 case EIO_READ: ALLOC (req->size);
823 case EIO_READ: req->result = req->offs >= 0 935 req->result = req->offs >= 0
824 ? pread (req->int1, req->ptr2, req->size, req->offs) 936 ? pread (req->int1, req->ptr2, req->size, req->offs)
825 : read (req->int1, req->ptr2, req->size); break; 937 : read (req->int1, req->ptr2, req->size); break;
826 case EIO_WRITE: req->result = req->offs >= 0 938 case EIO_WRITE: req->result = req->offs >= 0
827 ? pwrite (req->int1, req->ptr2, req->size, req->offs) 939 ? pwrite (req->int1, req->ptr2, req->size, req->offs)
828 : write (req->int1, req->ptr2, req->size); break; 940 : write (req->int1, req->ptr2, req->size); break;
829 941
830 case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break; 942 case EIO_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
831 case EIO_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break; 943 case EIO_SENDFILE: req->result = eio__sendfile (req->int1, req->int2, req->offs, req->size, self); break;
832 944
945 case EIO_STAT: ALLOC (sizeof (EIO_STRUCT_STAT));
833 case EIO_STAT: req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; 946 req->result = stat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break;
947 case EIO_LSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
834 case EIO_LSTAT: req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break; 948 req->result = lstat (req->ptr1, (EIO_STRUCT_STAT *)req->ptr2); break;
949 case EIO_FSTAT: ALLOC (sizeof (EIO_STRUCT_STAT));
835 case EIO_FSTAT: req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break; 950 req->result = fstat (req->int1, (EIO_STRUCT_STAT *)req->ptr2); break;
836 951
837 case EIO_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break; 952 case EIO_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
838 case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; 953 case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
839 case EIO_CHMOD: req->result = chmod (req->ptr1, (mode_t)req->int2); break; 954 case EIO_CHMOD: req->result = chmod (req->ptr1, (mode_t)req->int2); break;
840 case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break; 955 case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break;
… …
849 case EIO_MKDIR: req->result = mkdir (req->ptr1, (mode_t)req->int2); break; 964 case EIO_MKDIR: req->result = mkdir (req->ptr1, (mode_t)req->int2); break;
850 case EIO_RENAME: req->result = rename (req->ptr1, req->ptr2); break; 965 case EIO_RENAME: req->result = rename (req->ptr1, req->ptr2); break;
851 case EIO_LINK: req->result = link (req->ptr1, req->ptr2); break; 966 case EIO_LINK: req->result = link (req->ptr1, req->ptr2); break;
852 case EIO_SYMLINK: req->result = symlink (req->ptr1, req->ptr2); break; 967 case EIO_SYMLINK: req->result = symlink (req->ptr1, req->ptr2); break;
853 case EIO_MKNOD: req->result = mknod (req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break; 968 case EIO_MKNOD: req->result = mknod (req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break;
969
970 case EIO_READLINK: ALLOC (NAME_MAX);
854 case EIO_READLINK: req->result = readlink (req->ptr1, req->ptr2, NAME_MAX); break; 971 req->result = readlink (req->ptr1, req->ptr2, NAME_MAX); break;
855 972
856 case EIO_SYNC: req->result = 0; sync (); break; 973 case EIO_SYNC: req->result = 0; sync (); break;
857 case EIO_FSYNC: req->result = fsync (req->int1); break; 974 case EIO_FSYNC: req->result = fsync (req->int1); break;
858 case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; 975 case EIO_FDATASYNC: req->result = fdatasync (req->int1); break;
859 976
860 case EIO_READDIR: scandir_ (req, self); break; 977 case EIO_READDIR: eio__scandir (req, self); break;
861 978
862 case EIO_BUSY: 979 case EIO_BUSY:
863#ifdef _WIN32 980#ifdef _WIN32
864 Sleep (req->nv1 * 1000.); 981 Sleep (req->nv1 * 1000.);
865#else 982#else
… …
898 : utimes (req->ptr1, times); 1015 : utimes (req->ptr1, times);
899 } 1016 }
900 1017
901 case EIO_GROUP: 1018 case EIO_GROUP:
902 case EIO_NOP: 1019 case EIO_NOP:
1020 req->result = 0;
903 break; 1021 break;
904 1022
905 case EIO_QUIT: 1023 case EIO_QUIT:
906 goto quit; 1024 goto quit;
907 1025
… …
914 1032
915 X_LOCK (reslock); 1033 X_LOCK (reslock);
916 1034
917 ++npending; 1035 ++npending;
918 1036
919 if (!reqq_push (&res_queue, req) && want_poll_cb) 1037 if (!reqq_push (&res_queue, req) && etp.want_poll_cb)
920 want_poll_cb (); 1038 etp.want_poll_cb ();
921 1039
922 self->req = 0; 1040 self->req = 0;
923 worker_clear (self); 1041 worker_clear (self);
924 1042
925 X_UNLOCK (reslock); 1043 X_UNLOCK (reslock);
926 } 1044 }
927 1045
928quit: 1046quit:
929 X_LOCK (wrklock); 1047 X_LOCK (etplock);
930 worker_free (self); 1048 worker_free (self);
931 X_UNLOCK (wrklock); 1049 X_UNLOCK (etplock);
932 1050
933 return 0; 1051 return 0;
934} 1052}
935 1053
936/*****************************************************************************/ 1054/*****************************************************************************/
937 1055
938static void eio_atfork_prepare (void)
939{
940 X_LOCK (wrklock);
941 X_LOCK (reqlock);
942 X_LOCK (reslock);
943#if !HAVE_PREADWRITE
944 X_LOCK (preadwritelock);
945#endif
946#if !HAVE_READDIR_R
947 X_LOCK (readdirlock);
948#endif
949}
950
951static void eio_atfork_parent (void)
952{
953#if !HAVE_READDIR_R
954 X_UNLOCK (readdirlock);
955#endif
956#if !HAVE_PREADWRITE
957 X_UNLOCK (preadwritelock);
958#endif
959 X_UNLOCK (reslock);
960 X_UNLOCK (reqlock);
961 X_UNLOCK (wrklock);
962}
963
964static void eio_atfork_child (void)
965{
966 eio_req *prv;
967
968 while (prv = reqq_shift (&req_queue))
969 eio_destroy (prv);
970
971 while (prv = reqq_shift (&res_queue))
972 eio_destroy (prv);
973
974 while (wrk_first.next != &wrk_first)
975 {
976 worker *wrk = wrk_first.next;
977
978 if (wrk->req)
979 eio_destroy (wrk->req);
980
981 worker_clear (wrk);
982 worker_free (wrk);
983 }
984
985 started = 0;
986 idle = 0;
987 nreqs = 0;
988 nready = 0;
989 npending = 0;
990
991 eio_atfork_parent ();
992}
993
994int eio_init (void (*want_poll)(void), void (*done_poll)(void)) 1056int eio_init (void (*want_poll)(void), void (*done_poll)(void))
995{ 1057{
996 want_poll_cb = want_poll; 1058 etp_init (&etp, want_poll, done_poll);
997 done_poll_cb = done_poll;
998
999#ifdef _WIN32
1000 X_MUTEX_CHECK (wrklock);
1001 X_MUTEX_CHECK (reslock);
1002 X_MUTEX_CHECK (reqlock);
1003 X_MUTEX_CHECK (reqwait);
1004 X_MUTEX_CHECK (preadwritelock);
1005 X_MUTEX_CHECK (readdirlock);
1006
1007 X_COND_CHECK (reqwait);
1008#endif
1009
1010 X_THREAD_ATFORK (eio_atfork_prepare, eio_atfork_parent, eio_atfork_child);
1011} 1059}
1012 1060
1013#if 0 1061static void eio_api_destroy (eio_req *req)
1062{
1063 free (req);
1064}
1014 1065
1066#define REQ(rtype) \
1067 eio_req *req; \
1068 \
1069 req = (eio_req *)calloc (1, sizeof *req); \
1070 if (!req) \
1071 return 0; \
1072 \
1073 req->type = rtype; \
1074 req->pri = pri; \
1075 req->finish = cb; \
1076 req->data = data; \
1077 req->destroy = eio_api_destroy;
1078
1079#define SEND eio_submit (req); return req
1080
1081#define PATH \
1082 req->flags |= EIO_FLAG_PTR1_FREE; \
1083 req->ptr1 = strdup (path); \
1084 if (!req->ptr1) \
1085 { \
1086 eio_api_destroy (req); \
1087 return 0; \
1088 }
1089
1090#ifndef EIO_NO_WRAPPERS
1091
1092eio_req *eio_nop (int pri, eio_cb cb, void *data)
1093{
1094 REQ (EIO_NOP); SEND;
1095}
1096
1097eio_req *eio_busy (double delay, int pri, eio_cb cb, void *data)
1098{
1099 REQ (EIO_BUSY); req->nv1 = delay; SEND;
1100}
1101
1015eio_req *eio_fsync (int fd, eio_cb cb); 1102eio_req *eio_sync (int pri, eio_cb cb, void *data)
1103{
1104 REQ (EIO_SYNC); SEND;
1105}
1106
1107eio_req *eio_fsync (int fd, int pri, eio_cb cb, void *data)
1108{
1109 REQ (EIO_FSYNC); req->int1 = fd; SEND;
1110}
1111
1016eio_req *eio_fdatasync (int fd, eio_cb cb); 1112eio_req *eio_fdatasync (int fd, int pri, eio_cb cb, void *data)
1017eio_req *eio_dupclose (int fd, eio_cb cb); 1113{
1114 REQ (EIO_FDATASYNC); req->int1 = fd; SEND;
1115}
1116
1117eio_req *eio_close (int fd, int pri, eio_cb cb, void *data)
1118{
1119 REQ (EIO_CLOSE); req->int1 = fd; SEND;
1120}
1121
1018eio_req *eio_readahead (int fd, off_t offset, size_t length, eio_cb cb); 1122eio_req *eio_readahead (int fd, off_t offset, size_t length, int pri, eio_cb cb, void *data)
1019eio_req *eio_read (int fd, off_t offs, size_t length, char *data, eio_cb cb); 1123{
1020eio_req *eio_write (int fd, off_t offs, size_t length, char *data, eio_cb cb); 1124 REQ (EIO_READAHEAD); req->int1 = fd; req->offs = offset; req->size = length; SEND;
1021eio_req *eio_fstat (int fd, eio_cb cb); /* stat buffer=ptr2 allocates dynamically */ 1125}
1126
1127eio_req *eio_read (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data)
1128{
1129 REQ (EIO_READ); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND;
1130}
1131
1132eio_req *eio_write (int fd, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data)
1133{
1134 REQ (EIO_WRITE); req->int1 = fd; req->offs = offset; req->size = length; req->ptr2 = buf; SEND;
1135}
1136
1137eio_req *eio_fstat (int fd, int pri, eio_cb cb, void *data)
1138{
1139 REQ (EIO_FSTAT); req->int1 = fd; SEND;
1140}
1141
1022eio_req *eio_futime (int fd, double atime, double mtime, eio_cb cb); 1142eio_req *eio_futime (int fd, double atime, double mtime, int pri, eio_cb cb, void *data)
1143{
1144 REQ (EIO_FUTIME); req->int1 = fd; req->nv1 = atime; req->nv2 = mtime; SEND;
1145}
1146
1023eio_req *eio_ftruncate (int fd, off_t offset, eio_cb cb); 1147eio_req *eio_ftruncate (int fd, off_t offset, int pri, eio_cb cb, void *data)
1148{
1149 REQ (EIO_FTRUNCATE); req->int1 = fd; req->offs = offset; SEND;
1150}
1151
1024eio_req *eio_fchmod (int fd, mode_t mode, eio_cb cb); 1152eio_req *eio_fchmod (int fd, mode_t mode, int pri, eio_cb cb, void *data)
1153{
1154 REQ (EIO_FCHMOD); req->int1 = fd; req->int2 = (long)mode; SEND;
1155}
1156
1025eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, eio_cb cb); 1157eio_req *eio_fchown (int fd, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data)
1158{
1159 REQ (EIO_FCHOWN); req->int1 = fd; req->int2 = (long)uid; req->int3 = (long)gid; SEND;
1160}
1161
1026eio_req *eio_dup2 (int fd, int fd2, eio_cb cb); 1162eio_req *eio_dup2 (int fd, int fd2, int pri, eio_cb cb, void *data)
1163{
1164 REQ (EIO_DUP2); req->int1 = fd; req->int2 = fd2; SEND;
1165}
1166
1027eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, eio_cb cb); 1167eio_req *eio_sendfile (int out_fd, int in_fd, off_t in_offset, size_t length, int pri, eio_cb cb, void *data)
1168{
1169 REQ (EIO_SENDFILE); req->int1 = out_fd; req->int2 = in_fd; req->offs = in_offset; req->size = length; SEND;
1170}
1171
1028eio_req *eio_open (const char *path, int flags, mode_t mode, eio_cb cb); 1172eio_req *eio_open (const char *path, int flags, mode_t mode, int pri, eio_cb cb, void *data)
1029eio_req *eio_readlink (const char *path, eio_cb cb); /* result=ptr2 allocated dynamically */ 1173{
1030eio_req *eio_stat (const char *path, eio_cb cb); /* stat buffer=ptr2 allocates dynamically */ 1174 REQ (EIO_OPEN); PATH; req->int1 = flags; req->int2 = (long)mode; SEND;
1031eio_req *eio_lstat (const char *path, eio_cb cb); /* stat buffer=ptr2 allocates dynamically */ 1175}
1176
1032eio_req *eio_utime (const char *path, double atime, double mtime, eio_cb cb); 1177eio_req *eio_utime (const char *path, double atime, double mtime, int pri, eio_cb cb, void *data)
1178{
1179 REQ (EIO_UTIME); PATH; req->nv1 = atime; req->nv2 = mtime; SEND;
1180}
1181
1033eio_req *eio_truncate (const char *path, off_t offset, eio_cb cb); 1182eio_req *eio_truncate (const char *path, off_t offset, int pri, eio_cb cb, void *data)
1034eio_req *eio_chmod (const char *path, mode_t mode, eio_cb cb); 1183{
1035eio_req *eio_mkdir (const char *path, mode_t mode, eio_cb cb); 1184 REQ (EIO_TRUNCATE); PATH; req->offs = offset; SEND;
1185}
1186
1036eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, eio_cb cb); 1187eio_req *eio_chown (const char *path, uid_t uid, gid_t gid, int pri, eio_cb cb, void *data)
1188{
1189 REQ (EIO_CHOWN); PATH; req->int2 = (long)uid; req->int3 = (long)gid; SEND;
1190}
1191
1192eio_req *eio_chmod (const char *path, mode_t mode, int pri, eio_cb cb, void *data)
1193{
1194 REQ (EIO_CHMOD); PATH; req->int2 = (long)mode; SEND;
1195}
1196
1197eio_req *eio_mkdir (const char *path, mode_t mode, int pri, eio_cb cb, void *data)
1198{
1199 REQ (EIO_MKDIR); PATH; req->int2 = (long)mode; SEND;
1200}
1201
1202static eio_req *
1203eio__1path (int type, const char *path, int pri, eio_cb cb, void *data)
1204{
1205 REQ (type); PATH; SEND;
1206}
1207
1208eio_req *eio_readlink (const char *path, int pri, eio_cb cb, void *data)
1209{
1210 return eio__1path (EIO_READLINK, path, pri, cb, data);
1211}
1212
1213eio_req *eio_stat (const char *path, int pri, eio_cb cb, void *data)
1214{
1215 return eio__1path (EIO_STAT, path, pri, cb, data);
1216}
1217
1218eio_req *eio_lstat (const char *path, int pri, eio_cb cb, void *data)
1219{
1220 return eio__1path (EIO_LSTAT, path, pri, cb, data);
1221}
1222
1037eio_req *eio_unlink (const char *path, eio_cb cb); 1223eio_req *eio_unlink (const char *path, int pri, eio_cb cb, void *data)
1224{
1225 return eio__1path (EIO_UNLINK, path, pri, cb, data);
1226}
1227
1038eio_req *eio_rmdir (const char *path, eio_cb cb); 1228eio_req *eio_rmdir (const char *path, int pri, eio_cb cb, void *data)
1039eio_req *eio_readdir (const char *path, eio_cb cb); /* result=ptr2 allocated dynamically */ 1229{
1230 return eio__1path (EIO_RMDIR, path, pri, cb, data);
1231}
1232
1233eio_req *eio_readdir (const char *path, int pri, eio_cb cb, void *data)
1234{
1235 return eio__1path (EIO_READDIR, path, pri, cb, data);
1236}
1237
1040eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, eio_cb cb); 1238eio_req *eio_mknod (const char *path, mode_t mode, dev_t dev, int pri, eio_cb cb, void *data)
1041eio_req *eio_busy (double delay, eio_cb cb); /* ties a thread for this long, simulating busyness */
1042eio_req *eio_nop (eio_cb cb); /* does nothing except go through the whole process */
1043void
1044aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1045 PROTOTYPE: $$$;$
1046 PPCODE:
1047{ 1239{
1048 dREQ; 1240 REQ (EIO_MKNOD); PATH; req->int2 = (long)mode; req->int2 = (long)dev; SEND;
1049
1050 req->type = EIO_OPEN;
1051 req->sv1 = newSVsv (pathname);
1052 req->ptr1 = SvPVbyte_nolen (req->sv1);
1053 req->int1 = flags;
1054 req->int2 = mode;
1055
1056 EIO_SEND;
1057} 1241}
1058 1242
1059void 1243static eio_req *
1060aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 1244eio__2path (int type, const char *path, const char *new_path, int pri, eio_cb cb, void *data)
1061 PROTOTYPE: $;$
1062 ALIAS:
1063 aio_fsync = EIO_FSYNC
1064 aio_fdatasync = EIO_FDATASYNC
1065 PPCODE:
1066{ 1245{
1067 dREQ; 1246 REQ (type); PATH;
1068 1247
1069 req->type = ix;
1070 req->sv1 = newSVsv (fh);
1071 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1072
1073 EIO_SEND (req);
1074}
1075
1076void
1077aio_close (SV *fh, SV *callback=&PL_sv_undef)
1078 PROTOTYPE: $;$
1079 PPCODE:
1080{
1081 dREQ;
1082
1083 req->type = EIO_CLOSE;
1084 req->sv1 = newSVsv (fh);
1085 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1086
1087 EIO_SEND (req);
1088}
1089
1090void
1091aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1092 ALIAS:
1093 aio_read = EIO_READ
1094 aio_write = EIO_WRITE
1095 PROTOTYPE: $$$$$;$
1096 PPCODE:
1097{
1098 STRLEN svlen;
1099 char *svptr = SvPVbyte (data, svlen);
1100 UV len = SvUV (length);
1101
1102 SvUPGRADE (data, SVt_PV);
1103 SvPOK_on (data);
1104
1105 if (dataoffset < 0)
1106 dataoffset += svlen;
1107
1108 if (dataoffset < 0 || dataoffset > svlen)
1109 croak ("dataoffset outside of data scalar");
1110
1111 if (ix == EIO_WRITE)
1112 {
1113 /* write: check length and adjust. */
1114 if (!SvOK (length) || len + dataoffset > svlen)
1115 len = svlen - dataoffset;
1116 }
1117 else
1118 {
1119 /* read: grow scalar as necessary */
1120 svptr = SvGROW (data, len + dataoffset + 1);
1121 }
1122
1123 if (len < 0)
1124 croak ("length must not be negative");
1125
1126 {
1127 dREQ;
1128
1129 req->type = ix;
1130 req->sv1 = newSVsv (fh);
1131 req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))
1132 : IoOFP (sv_2io (fh)));
1133 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1134 req->size = len;
1135 req->sv2 = SvREFCNT_inc (data);
1136 req->ptr2 = (char *)svptr + dataoffset;
1137 req->stroffset = dataoffset;
1138
1139 if (!SvREADONLY (data))
1140 {
1141 SvREADONLY_on (data);
1142 req->flags |= FLAG_SV2_RO_OFF;
1143 }
1144
1145 EIO_SEND;
1146 }
1147}
1148
1149void
1150aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
1151 PROTOTYPE: $$;$
1152 PPCODE:
1153{
1154 SV *data;
1155 dREQ;
1156
1157 data = newSV (NAME_MAX);
1158 SvPOK_on (data);
1159
1160 req->type = EIO_READLINK;
1161 req->sv1 = newSVsv (path);
1162 req->ptr1 = SvPVbyte_nolen (req->sv1);
1163 req->sv2 = data;
1164 req->ptr2 = SvPVbyte_nolen (data);
1165
1166 EIO_SEND;
1167}
1168
1169void
1170aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1171 PROTOTYPE: $$$$;$
1172 PPCODE:
1173{
1174 dREQ;
1175
1176 req->type = EIO_SENDFILE;
1177 req->sv1 = newSVsv (out_fh);
1178 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1179 req->sv2 = newSVsv (in_fh);
1180 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1181 req->offs = SvVAL64 (in_offset);
1182 req->size = length;
1183
1184 EIO_SEND;
1185}
1186
1187void
1188aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1189 PROTOTYPE: $$$;$
1190 PPCODE:
1191{
1192 dREQ;
1193
1194 req->type = EIO_READAHEAD;
1195 req->sv1 = newSVsv (fh);
1196 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1197 req->offs = SvVAL64 (offset);
1198 req->size = length;
1199
1200 EIO_SEND;
1201}
1202
1203void
1204aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1205 ALIAS:
1206 aio_stat = EIO_STAT
1207 aio_lstat = EIO_LSTAT
1208 PPCODE:
1209{
1210 dREQ;
1211
1212 req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));
1213 if (!req->ptr2)
1214 {
1215 req_destroy (req);
1216 croak ("out of memory during aio_stat statdata allocation");
1217 }
1218
1219 req->flags |= FLAG_PTR2_FREE; 1248 req->flags |= EIO_FLAG_PTR2_FREE;
1220 req->sv1 = newSVsv (fh_or_path); 1249 req->ptr2 = strdup (new_path);
1250 if (!req->ptr2)
1251 {
1252 eio_api_destroy (req);
1253 return 0;
1254 }
1221 1255
1222 if (SvPOK (fh_or_path)) 1256 SEND;
1223 {
1224 req->type = ix;
1225 req->ptr1 = SvPVbyte_nolen (req->sv1);
1226 }
1227 else
1228 {
1229 req->type = EIO_FSTAT;
1230 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1231 }
1232
1233 EIO_SEND;
1234} 1257}
1235 1258
1236void 1259eio_req *eio_link (const char *path, const char *new_path, int pri, eio_cb cb, void *data)
1237aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1238 PPCODE:
1239{ 1260{
1240 dREQ; 1261 return eio__2path (EIO_LINK, path, new_path, pri, cb, data);
1241
1242 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1243 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1244 req->sv1 = newSVsv (fh_or_path);
1245
1246 if (SvPOK (fh_or_path))
1247 {
1248 req->type = EIO_UTIME;
1249 req->ptr1 = SvPVbyte_nolen (req->sv1);
1250 }
1251 else
1252 {
1253 req->type = EIO_FUTIME;
1254 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1255 }
1256
1257 EIO_SEND;
1258} 1262}
1259 1263
1260void 1264eio_req *eio_symlink (const char *path, const char *new_path, int pri, eio_cb cb, void *data)
1261aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1262 PPCODE:
1263{ 1265{
1264 dREQ; 1266 return eio__2path (EIO_SYMLINK, path, new_path, pri, cb, data);
1265
1266 req->sv1 = newSVsv (fh_or_path);
1267 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1268
1269 if (SvPOK (fh_or_path))
1270 {
1271 req->type = EIO_TRUNCATE;
1272 req->ptr1 = SvPVbyte_nolen (req->sv1);
1273 }
1274 else
1275 {
1276 req->type = EIO_FTRUNCATE;
1277 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1278 }
1279
1280 EIO_SEND;
1281} 1267}
1282 1268
1283void 1269eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data)
1284aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1285 ALIAS:
1286 aio_chmod = EIO_CHMOD
1287 aio_fchmod = EIO_FCHMOD
1288 aio_mkdir = EIO_MKDIR
1289 PPCODE:
1290{ 1270{
1291 dREQ; 1271 return eio__2path (EIO_RENAME, path, new_path, pri, cb, data);
1292
1293 req->type = type;
1294 req->int2 = mode;
1295 req->sv1 = newSVsv (fh_or_path);
1296
1297 if (ix == EIO_FCHMOD)
1298 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1299 else
1300 req->ptr1 = SvPVbyte_nolen (req->sv1);
1301
1302 EIO_SEND;
1303} 1272}
1304 1273
1305void
1306aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1307 PPCODE:
1308{
1309 dREQ;
1310
1311 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1312 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1313 req->sv1 = newSVsv (fh_or_path);
1314
1315 if (SvPOK (fh_or_path))
1316 {
1317 req->type = EIO_CHOWN;
1318 req->ptr1 = SvPVbyte_nolen (req->sv1);
1319 }
1320 else
1321 {
1322 req->type = EIO_FCHOWN;
1323 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1324 }
1325
1326 EIO_SEND;
1327}
1328
1329void
1330aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1331 ALIAS:
1332 aio_unlink = EIO_UNLINK
1333 aio_rmdir = EIO_RMDIR
1334 aio_readdir = EIO_READDIR
1335 PPCODE:
1336{
1337 dREQ;
1338
1339 req->type = ix;
1340 req->sv1 = newSVsv (pathname);
1341 req->ptr1 = SvPVbyte_nolen (req->sv1);
1342
1343 EIO_SEND;
1344}
1345
1346void
1347aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1348 ALIAS:
1349 aio_link = EIO_LINK
1350 aio_symlink = EIO_SYMLINK
1351 aio_rename = EIO_RENAME
1352 PPCODE:
1353{
1354 dREQ;
1355
1356 req->type = ix;
1357 req->sv1 = newSVsv (oldpath);
1358 req->ptr1 = SvPVbyte_nolen (req->sv1);
1359 req->sv2 = newSVsv (newpath);
1360 req->ptr2 = SvPVbyte_nolen (req->sv2);
1361
1362 EIO_SEND;
1363}
1364
1365void
1366aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1367 PPCODE:
1368{
1369 dREQ;
1370
1371 req->type = EIO_MKNOD;
1372 req->sv1 = newSVsv (pathname);
1373 req->ptr1 = SvPVbyte_nolen (req->sv1);
1374 req->int2 = (mode_t)mode;
1375 req->offs = dev;
1376
1377 EIO_SEND;
1378}
1379
1380void
1381aio_busy (double delay, SV *callback=&PL_sv_undef)
1382 PPCODE:
1383{
1384 dREQ;
1385
1386 req->type = EIO_BUSY;
1387 req->nv1 = delay < 0. ? 0. : delay;
1388
1389 EIO_SEND;
1390}
1391
1392void
1393aio_group (SV *callback=&PL_sv_undef)
1394 PROTOTYPE: ;$
1395 PPCODE:
1396{
1397 dREQ;
1398
1399 req->type = EIO_GROUP;
1400
1401 req_send (req);
1402 XPUSHs (req_sv (req, AIO_GRP_KLASS));
1403}
1404
1405void
1406aio_nop (SV *callback=&PL_sv_undef)
1407 ALIAS:
1408 aio_nop = EIO_NOP
1409 aio_sync = EIO_SYNC
1410 PPCODE:
1411{
1412 dREQ;
1413
1414#endif 1274#endif
1275
1276eio_req *eio_grp (eio_cb cb, void *data)
1277{
1278 const int pri = EIO_PRI_MAX;
1279
1280 REQ (EIO_GROUP); SEND;
1281}
1282
1283#undef REQ
1284#undef PATH
1285#undef SEND
1286
1287/*****************************************************************************/
1288/* grp functions */
1415 1289
1416void eio_grp_feed (eio_req *grp, void (*feed)(eio_req *req), int limit) 1290void eio_grp_feed (eio_req *grp, void (*feed)(eio_req *req), int limit)
1417{ 1291{
1418 grp->int2 = limit; 1292 grp->int2 = limit;
1419 grp->feed = feed; 1293 grp->feed = feed;
… …
1442 grp->grp_first->grp_prev = req; 1316 grp->grp_first->grp_prev = req;
1443 1317
1444 grp->grp_first = req; 1318 grp->grp_first = req;
1445} 1319}
1446 1320
1321/*****************************************************************************/
1322/* misc garbage */
1447 1323
1324ssize_t eio_sendfile_sync (int ofd, int ifd, off_t offset, size_t count)
1325{
1326 worker wrk;
1327
1328 wrk.dbuf = 0;
1329
1330 eio__sendfile (ofd, ifd, offset, count, &wrk);
1331
1332 if (wrk.dbuf)
1333 free (wrk.dbuf);
1334}
1335

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