1 #include "libeio/xthread.h"
2
3 #include <errno.h>
4
5 #include "EXTERN.h"
6 #include "perl.h"
7 #include "XSUB.h"
8 #include "perliol.h"
9
10 #if !defined mg_findext
11 # define mg_findext(sv,type,vtbl) mg_find (sv, type)
12 #endif
13
14 #include <stddef.h>
15 #include <stdlib.h>
16 #include <errno.h>
17 #include <sys/types.h>
18 #include <sys/socket.h>
19 #include <sys/stat.h>
20 #include <limits.h>
21 #include <fcntl.h>
22 #include <sched.h>
23
24 /* the incompetent fool that created musl keeps __linux__, refuses
25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. don't complain to me if this fails
27 * for you.
28 */
29 #if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30 # include <linux/fs.h>
31 # ifdef FS_IOC_FIEMAP
32 # include <linux/types.h>
33 # include <linux/fiemap.h>
34 # define HAVE_FIEMAP 1
35 # endif
36 #endif
37
38 /* perl namespace pollution */
39 #undef VERSION
40
41 /* perl stupidly overrides readdir and maybe others */
42 /* with thread-unsafe versions, imagine that :( */
43 #undef readdir
44 #undef opendir
45 #undef closedir
46
47 #ifdef _WIN32
48
49 // perl overrides all those nice libc functions
50
51 #undef malloc
52 #undef free
53 #undef open
54 #undef read
55 #undef write
56 #undef send
57 #undef recv
58 #undef stat
59 #undef lstat
60 #undef fstat
61 #undef truncate
62 #undef ftruncate
63 #undef open
64 #undef link
65 #undef close
66 #undef unlink
67 #undef mkdir
68 #undef rmdir
69 #undef rename
70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
80 #undef utime
81
82 #define EIO_STRUCT_STAT struct _stati64
83 #define EIO_STRUCT_STATI64
84
85 #else
86
87 #include <sys/time.h>
88 #include <sys/select.h>
89 #include <sys/wait.h>
90 #include <unistd.h>
91 #include <utime.h>
92 #include <signal.h>
93
94 #define EIO_STRUCT_STAT Stat_t
95
96 #endif
97
98 /*****************************************************************************/
99
100 #if __GNUC__ >= 3
101 # define expect(expr,value) __builtin_expect ((expr),(value))
102 #else
103 # define expect(expr,value) (expr)
104 #endif
105
106 #define expect_false(expr) expect ((expr) != 0, 0)
107 #define expect_true(expr) expect ((expr) != 0, 1)
108
109 /*****************************************************************************/
110
111 #include "config.h"
112
113 #if HAVE_SYS_MKDEV_H
114 # include <sys/mkdev.h>
115 #elif HAVE_SYS_SYSMACROS_H
116 # include <sys/sysmacros.h>
117 #endif
118
119 #if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
120 # include <sys/mman.h>
121 #endif
122
123 #if HAVE_SYS_UIO_H
124 # include <sys/uio.h>
125 #endif
126
127 #if HAVE_ST_XTIMENSEC
128 # define ATIMENSEC PL_statcache.st_atimensec
129 # define MTIMENSEC PL_statcache.st_mtimensec
130 # define CTIMENSEC PL_statcache.st_ctimensec
131 #elif HAVE_ST_XTIMESPEC
132 # define ATIMENSEC PL_statcache.st_atim.tv_nsec
133 # define MTIMENSEC PL_statcache.st_mtim.tv_nsec
134 # define CTIMENSEC PL_statcache.st_ctim.tv_nsec
135 #else
136 # define ATIMENSEC 0
137 # define MTIMENSEC 0
138 # define CTIMENSEC 0
139 #endif
140
141 #if HAVE_ST_BIRTHTIMENSEC
142 # define BTIMESEC PL_statcache.st_birthtime
143 # define BTIMENSEC PL_statcache.st_birthtimensec
144 #elif HAVE_ST_BIRTHTIMESPEC
145 # define BTIMESEC PL_statcache.st_birthtim.tv_sec
146 # define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
147 #else
148 # define BTIMESEC 0
149 # define BTIMENSEC 0
150 #endif
151
152 #if HAVE_ST_GEN
153 # define ST_GEN PL_statcache.st_gen
154 #else
155 # define ST_GEN 0
156 #endif
157
158 #include "schmorp.h"
159
160 #if HAVE_EVENTFD
161 # include <sys/eventfd.h>
162 #endif
163
164 #if HAVE_TIMERFD
165 # include <sys/timerfd.h>
166 #endif
167
168 #if HAVE_RLIMITS
169 #include <sys/time.h>
170 #include <sys/resource.h>
171 #endif
172
173 typedef SV SV8; /* byte-sv, used for argument-checking */
174 typedef int aio_rfd; /* read file desriptor */
175 typedef int aio_wfd; /* write file descriptor */
176
177 static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
178
179 #define EIO_REQ_MEMBERS \
180 SV *callback; \
181 SV *sv1, *sv2; \
182 SV *sv3, *sv4; \
183 STRLEN stroffset; \
184 SV *self;
185
186 #define EIO_NO_WRAPPERS 1
187
188 #include "libeio/eio.h"
189
190 static int req_invoke (eio_req *req);
191 #define EIO_FINISH(req) req_invoke (req)
192 static void req_destroy (eio_req *grp);
193 #define EIO_DESTROY(req) req_destroy (req)
194
195 #include "libeio/eio.c"
196
197 #if !HAVE_POSIX_FADVISE
198 # define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
199 #endif
200
201 #if !HAVE_POSIX_MADVISE
202 # define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
203 #endif
204
205 #ifndef MAP_ANONYMOUS
206 # ifdef MAP_ANON
207 # define MAP_ANONYMOUS MAP_ANON
208 # else
209 # define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
210 # endif
211 #endif
212
213 #ifndef makedev
214 # define makedev(maj,min) (((maj) << 8) | (min))
215 #endif
216 #ifndef major
217 # define major(dev) ((dev) >> 8)
218 #endif
219 #ifndef minor
220 # define minor(dev) ((dev) & 0xff)
221 #endif
222
223 /* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
224 #ifdef __sun
225 # undef PAGESIZE
226 #endif
227
228 #if PAGESIZE <= 0
229 # define PAGESIZE sysconf (_SC_PAGESIZE)
230 #endif
231
232 /* solaris perl seems to declare a wrong syscall function that clashes with system includes */
233 #ifdef __sun
234 # undef HAVE_SYSCALL
235 #endif
236
237 #if HAVE_SYSCALL
238 #include <sys/syscall.h>
239 #else
240 # define syscall(nr,...) (errno = ENOSYS, -1)
241 #endif
242
243 /*****************************************************************************/
244
245 #if !_POSIX_MAPPED_FILES
246 # define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
247 # define munmap(addr,length) EIO_ENOSYS ()
248 #endif
249
250 #if !_POSIX_MEMORY_PROTECTION
251 # define mprotect(addr,len,prot) EIO_ENOSYS ()
252 #endif
253
254 #if !MREMAP_MAYMOVE
255 # define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
256 #endif
257
258 #define FOREIGN_MAGIC PERL_MAGIC_ext
259
260 static int ecb_cold
mmap_free(pTHX_ SV * sv,MAGIC * mg)261 mmap_free (pTHX_ SV *sv, MAGIC *mg)
262 {
263 int old_errno = errno;
264 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
265 errno = old_errno;
266
267 mg->mg_obj = 0; /* just in case */
268
269 SvREADONLY_off (sv);
270
271 if (SvPVX (sv) != mg->mg_ptr)
272 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
273
274 SvCUR_set (sv, 0);
275 SvPVX (sv) = 0;
276 SvOK_off (sv);
277
278 return 0;
279 }
280
281 static MGVTBL mmap_vtbl = {
282 0, 0, 0, 0, mmap_free
283 };
284
285 static int ecb_cold
sysfree_free(pTHX_ SV * sv,MAGIC * mg)286 sysfree_free (pTHX_ SV *sv, MAGIC *mg)
287 {
288 free (mg->mg_ptr);
289 mg->mg_obj = 0; /* just in case */
290
291 SvREADONLY_off (sv);
292
293 if (SvPVX (sv) != mg->mg_ptr)
294 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
295
296 SvCUR_set (sv, 0);
297 SvPVX (sv) = 0;
298 SvOK_off (sv);
299
300 return 0;
301 }
302
303 static MGVTBL sysfree_vtbl = {
304 0, 0, 0, 0, sysfree_free
305 };
306
307 /*****************************************************************************/
308
309 /* helper: set scalar to foreign ptr with custom free */
310 ecb_noinline
311 static void
sv_set_foreign(SV * sv,const MGVTBL * const vtbl,void * addr,IV length)312 sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
313 {
314 sv_force_normal (sv);
315
316 /* we store the length in mg_obj, as namlen is I32 :/ */
317 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
318 ->mg_obj = (SV *)length;
319
320 SvUPGRADE (sv, SVt_PV); /* nop... */
321
322 if (SvLEN (sv))
323 Safefree (SvPVX (sv));
324
325 SvPVX (sv) = (char *)addr;
326 SvCUR_set (sv, length);
327 SvLEN_set (sv, 0);
328 SvPOK_only (sv);
329 }
330
331 static void
sv_clear_foreign(SV * sv)332 sv_clear_foreign (SV *sv)
333 {
334 /* todo: iterate over magic and only free ours, but of course */
335 /* the perl5porters will call that (correct) behaviour buggy */
336 sv_unmagic (sv, FOREIGN_MAGIC);
337 }
338
339 /*****************************************************************************/
340
341 /* defines all sorts of constants to 0 unless they are already defined */
342 /* also provides const_iv_ and const_niv_ macros for them */
343 #include "def0.h"
344
345 /*****************************************************************************/
346
347 static void
fiemap(eio_req * req)348 fiemap (eio_req *req)
349 {
350 req->result = -1;
351
352 #if HAVE_FIEMAP
353 /* assume some c99 */
354 struct fiemap *fiemap = 0;
355 size_t end_offset;
356 int count = req->int3;
357
358 req->flags |= EIO_FLAG_PTR1_FREE;
359
360 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
361 /* increase in fixed steps */
362 if (count < 0)
363 count = 8;
364
365 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
366 errno = ENOMEM;
367 if (!fiemap)
368 return;
369
370 req->ptr1 = fiemap;
371
372 fiemap->fm_start = req->offs;
373 fiemap->fm_length = req->size;
374 fiemap->fm_flags = req->int2;
375 fiemap->fm_extent_count = count;
376
377 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
378 return;
379
380 if (req->int3 >= 0 /* not autosizing */
381 || !fiemap->fm_mapped_extents /* no more extents */
382 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
383 goto done;
384
385 /* else we have to loop -
386 * it would be tempting (actually I tried that first) to just query the
387 * number of extents needed, but linux often feels like not returning all
388 * extents, without telling us it left any out. this complicates
389 * this quite a bit.
390 */
391
392 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
393
394 for (;;)
395 {
396 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
397 char scratch[3072];
398 struct fiemap *incmap = (struct fiemap *)scratch;
399
400 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
401 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
402 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
403 incmap->fm_flags = fiemap->fm_flags;
404 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
405
406 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
407 return;
408
409 if (!incmap->fm_mapped_extents)
410 goto done;
411
412 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
413 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
414 errno = ENOMEM;
415 if (!fiemap)
416 return;
417
418 req->ptr1 = fiemap;
419
420 for (count = 0; count < incmap->fm_mapped_extents; ++count)
421 {
422 struct fiemap_extent *e = incmap->fm_extents + count;
423
424 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
425
426 if (e->fe_logical >= end_offset)
427 goto done;
428
429 if (e->fe_flags & FIEMAP_EXTENT_LAST)
430 goto done;
431
432 }
433 }
434
435 done:
436 req->result = 0;
437
438 #else
439 errno = ENOSYS;
440 #endif
441 }
442
443 /*****************************************************************************/
444
445 static int close_fd; /* dummy fd to close fds via dup2 */
446
447 #if HAVE_STATX
448 static struct statx stx;
449 #define statx_offsetof(member) offsetof (struct statx, member)
450 #define eio__statx statx
451 #else
452 #define statx_offsetof(member) 0
453 #define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
454 #endif
455
456 enum {
457 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
458 };
459
460 typedef eio_req *aio_req;
461 typedef eio_req *aio_req_ornot;
462 typedef eio_wd aio_wd;
463
464 static SV *on_next_submit;
465 static int next_pri = EIO_PRI_DEFAULT;
466 static int max_outstanding;
467
468 static s_epipe respipe;
469
470 static void req_destroy (aio_req req);
471 static void req_cancel (aio_req req);
472
473 static void
want_poll(void)474 want_poll (void)
475 {
476 /* write a dummy byte to the pipe so fh becomes ready */
477 s_epipe_signal (&respipe);
478 }
479
480 static void
done_poll(void)481 done_poll (void)
482 {
483 /* read any signals sent by the worker threads */
484 s_epipe_drain (&respipe);
485 }
486
487 /* must be called at most once */
488 ecb_noinline
489 static SV *
req_sv(aio_req req,HV * stash)490 req_sv (aio_req req, HV *stash)
491 {
492 if (!req->self)
493 {
494 req->self = (SV *)newHV ();
495 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
496 }
497
498 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
499 }
500
501 static SV *
newSVaio_wd(aio_wd wd)502 newSVaio_wd (aio_wd wd)
503 {
504 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
505 }
506
507 ecb_noinline
508 static aio_req
SvAIO_REQ(SV * sv)509 SvAIO_REQ (SV *sv)
510 {
511 MAGIC *mg;
512
513 if (!SvROK (sv)
514 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
515 || (SvSTASH (SvRV (sv)) != aio_grp_stash
516 && SvSTASH (SvRV (sv)) != aio_req_stash
517 && !sv_derived_from (sv, "IO::AIO::REQ")))
518 croak ("object of class IO::AIO::REQ expected");
519
520 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
521
522 return mg ? (aio_req)mg->mg_ptr : 0;
523 }
524
525 static aio_wd
SvAIO_WD(SV * sv)526 SvAIO_WD (SV *sv)
527 {
528 if (!SvROK (sv)
529 || SvTYPE (SvRV (sv)) != SVt_PVMG
530 || SvSTASH (SvRV (sv)) != aio_wd_stash)
531 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
532
533 return (aio_wd)(long)SvIVX (SvRV (sv));
534 }
535
536 static SV *
newmortalFH(int fd,int flags)537 newmortalFH (int fd, int flags)
538 {
539 if (fd < 0)
540 return &PL_sv_undef;
541
542 GV *gv = (GV *)sv_newmortal ();
543 char sym[64];
544 int symlen;
545
546 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
547 gv_init (gv, aio_stash, sym, symlen, 0);
548
549 symlen = snprintf (
550 sym,
551 sizeof (sym),
552 "%s&=%d",
553 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
554 fd
555 );
556
557 return do_open (gv, sym, symlen, 0, 0, 0, 0)
558 ? (SV *)gv : &PL_sv_undef;
559 }
560
561 static void
aio_grp_feed(aio_req grp)562 aio_grp_feed (aio_req grp)
563 {
564 if (grp->sv2 && SvOK (grp->sv2))
565 {
566 dSP;
567
568 ENTER;
569 SAVETMPS;
570 PUSHMARK (SP);
571 XPUSHs (req_sv (grp, aio_grp_stash));
572 PUTBACK;
573 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
574 SPAGAIN;
575 FREETMPS;
576 LEAVE;
577 }
578 }
579
580 ecb_noinline
581 static void
req_submit(eio_req * req)582 req_submit (eio_req *req)
583 {
584 eio_submit (req);
585
586 if (expect_false (on_next_submit))
587 {
588 dSP;
589 SV *cb = sv_2mortal (on_next_submit);
590
591 on_next_submit = 0;
592
593 PUSHMARK (SP);
594 PUTBACK;
595 call_sv (cb, G_DISCARD | G_EVAL);
596 }
597 }
598
599 static int
req_invoke(eio_req * req)600 req_invoke (eio_req *req)
601 {
602 if (req->flags & FLAG_SV2_RO_OFF)
603 SvREADONLY_off (req->sv2);
604
605 if (!EIO_CANCELLED (req) && req->callback)
606 {
607 dSP;
608 static SV *sv_result_cache; /* caches the result integer SV */
609 SV *sv_result;
610
611 ENTER;
612 SAVETMPS;
613 PUSHMARK (SP);
614 EXTEND (SP, 1);
615
616 /* do not recreate the result IV from scratch each time */
617 if (expect_true (sv_result_cache))
618 {
619 sv_result = sv_result_cache; sv_result_cache = 0;
620 SvIV_set (sv_result, req->result);
621 SvIOK_only (sv_result);
622 }
623 else
624 {
625 sv_result = newSViv (req->result);
626 SvREADONLY_on (sv_result);
627 }
628
629 switch (req->type)
630 {
631 case EIO_WD_OPEN:
632 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
633 break;
634
635 case EIO_READDIR:
636 {
637 SV *rv = &PL_sv_undef;
638
639 if (req->result >= 0)
640 {
641 int i;
642 char *names = (char *)req->ptr2;
643 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
644 AV *av = newAV ();
645
646 av_extend (av, req->result - 1);
647
648 for (i = 0; i < req->result; ++i)
649 {
650 if (req->int1 & EIO_READDIR_DENTS)
651 {
652 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
653
654 if (req->int1 & EIO_READDIR_CUSTOM2)
655 {
656 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
657 AV *avent = newAV ();
658
659 av_extend (avent, 2);
660
661 if (!sv_type [ent->type])
662 {
663 sv_type [ent->type] = newSViv (ent->type);
664 SvREADONLY_on (sv_type [ent->type]);
665 }
666
667 av_store (avent, 0, namesv);
668 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
669 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
670
671 av_store (av, i, newRV_noinc ((SV *)avent));
672 }
673 else
674 av_store (av, i, namesv);
675
676 ++ent;
677 }
678 else
679 {
680 SV *name = newSVpv (names, 0);
681 av_store (av, i, name);
682 names += SvCUR (name) + 1;
683 }
684 }
685
686 rv = sv_2mortal (newRV_noinc ((SV *)av));
687 }
688
689 PUSHs (rv);
690
691 if (req->int1 & EIO_READDIR_CUSTOM1)
692 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
693 }
694 break;
695
696 case EIO_OPEN:
697 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
698 break;
699
700 case EIO_STATVFS:
701 case EIO_FSTATVFS:
702 {
703 SV *rv = &PL_sv_undef;
704
705 #ifndef _WIN32
706 if (req->result >= 0)
707 {
708 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
709 HV *hv = newHV ();
710 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
711 * chooses to make it a struct.
712 */
713 unsigned long fsid = 0;
714 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
715
716 rv = sv_2mortal (newRV_noinc ((SV *)hv));
717
718 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
719 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
720 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
721 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
722 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
723 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
724 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
725 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
726 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
727 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
728 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
729 }
730 #endif
731
732 PUSHs (rv);
733 }
734
735 break;
736
737 case EIO_GROUP:
738 req->int1 = 2; /* mark group as finished */
739
740 if (req->sv1)
741 {
742 int i;
743 AV *av = (AV *)req->sv1;
744
745 EXTEND (SP, AvFILL (av) + 1);
746 for (i = 0; i <= AvFILL (av); ++i)
747 PUSHs (*av_fetch (av, i, 0));
748 }
749 break;
750
751 case EIO_NOP:
752 case EIO_BUSY:
753 break;
754
755 case EIO_READLINK:
756 case EIO_REALPATH:
757 if (req->result > 0)
758 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
759 break;
760
761 case EIO_STAT:
762 case EIO_LSTAT:
763 case EIO_FSTAT:
764 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
765
766 if (!(PL_laststatval = req->result))
767 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
768 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
769
770 PUSHs (sv_result);
771 break;
772
773 case EIO_SEEK:
774 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
775 break;
776
777 case EIO_READ:
778 {
779 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
780 *SvEND (req->sv2) = 0;
781 SvPOK_only (req->sv2);
782 SvSETMAGIC (req->sv2);
783 PUSHs (sv_result);
784 }
785 break;
786
787 case EIO_SLURP:
788 {
789 if (req->result >= 0)
790 {
791 /* if length was originally not known, we steal the malloc'ed memory */
792 if (req->flags & EIO_FLAG_PTR2_FREE)
793 {
794 req->flags &= ~EIO_FLAG_PTR2_FREE;
795 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
796 }
797 else
798 {
799 SvCUR_set (req->sv2, req->result);
800 *SvEND (req->sv2) = 0;
801 SvPOK_only (req->sv2);
802 }
803
804 SvSETMAGIC (req->sv2);
805 }
806
807 PUSHs (sv_result);
808 }
809 break;
810
811 case EIO_CUSTOM:
812 if (req->feed == fiemap)
813 {
814 #if HAVE_FIEMAP
815 if (!req->result)
816 {
817 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
818
819 if (fiemap->fm_extent_count)
820 {
821 AV *av = newAV ();
822 int i;
823
824 while (fiemap->fm_mapped_extents)
825 {
826 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
827 AV *ext_av = newAV ();
828
829 av_store (ext_av, 3, newSVuv (extent->fe_flags));
830 av_store (ext_av, 2, newSVval64 (extent->fe_length));
831 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
832 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
833
834 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
835 }
836
837 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
838 }
839 else
840 {
841 SvIV_set (sv_result, fiemap->fm_mapped_extents);
842 PUSHs (sv_result);
843 }
844 }
845 #endif
846 }
847 else
848 PUSHs (sv_result);
849 break;
850
851 #if 0
852 case EIO_CLOSE:
853 PerlIOUnix_refcnt_dec (req->int1);
854 break;
855 #endif
856
857 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
858 if (req->result > 0)
859 SvIV_set (sv_result, 0);
860 /* FALLTHROUGH */
861
862 default:
863 PUSHs (sv_result);
864 break;
865 }
866
867 errno = req->errorno;
868
869 PUTBACK;
870 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
871 SPAGAIN;
872
873 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
874 SvREFCNT_dec (sv_result);
875 else
876 sv_result_cache = sv_result;
877
878 FREETMPS;
879 LEAVE;
880
881 PUTBACK;
882 }
883
884 return !!SvTRUE (ERRSV);
885 }
886
887 static void
req_destroy(aio_req req)888 req_destroy (aio_req req)
889 {
890 if (req->self)
891 {
892 sv_unmagic (req->self, PERL_MAGIC_ext);
893 SvREFCNT_dec (req->self);
894 }
895
896 SvREFCNT_dec (req->sv1);
897 SvREFCNT_dec (req->sv2);
898 SvREFCNT_dec (req->sv3);
899 SvREFCNT_dec (req->sv4);
900 SvREFCNT_dec (req->callback);
901
902 free (req);
903 }
904
905 static void
req_cancel_subs(aio_req grp)906 req_cancel_subs (aio_req grp)
907 {
908 if (grp->type != EIO_GROUP)
909 return;
910
911 SvREFCNT_dec (grp->sv2);
912 grp->sv2 = 0;
913
914 eio_grp_cancel (grp);
915 }
916
917 ecb_cold
918 static void
create_respipe(void)919 create_respipe (void)
920 {
921 if (s_epipe_renew (&respipe))
922 croak ("IO::AIO: unable to initialize result pipe");
923 }
924
925 static void
poll_wait(void)926 poll_wait (void)
927 {
928 while (eio_nreqs ())
929 {
930 int size;
931
932 X_LOCK (EIO_POOL->reslock);
933 size = EIO_POOL->res_queue.size;
934 X_UNLOCK (EIO_POOL->reslock);
935
936 if (size)
937 return;
938
939 etp_maybe_start_thread (EIO_POOL);
940
941 s_epipe_wait (&respipe);
942 }
943 }
944
945 static int
poll_cb(void)946 poll_cb (void)
947 {
948 for (;;)
949 {
950 int res = eio_poll ();
951
952 if (res > 0)
953 croak (0);
954
955 if (!max_outstanding || max_outstanding > eio_nreqs ())
956 return res;
957
958 poll_wait ();
959 }
960 }
961
962 ecb_cold
963 static void
reinit(void)964 reinit (void)
965 {
966 create_respipe ();
967
968 if (eio_init (want_poll, done_poll) < 0)
969 croak ("IO::AIO: unable to initialise eio library");
970 }
971
972 /*****************************************************************************/
973
974 static SV *
get_cb(SV * cb_sv)975 get_cb (SV *cb_sv)
976 {
977 SvGETMAGIC (cb_sv);
978 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
979 }
980
981 ecb_noinline
982 static aio_req ecb_noinline
dreq(SV * callback)983 dreq (SV *callback)
984 {
985 SV *cb_cv;
986 aio_req req;
987 int req_pri = next_pri;
988 next_pri = EIO_PRI_DEFAULT;
989
990 cb_cv = get_cb (callback);
991
992 req = calloc (sizeof (*req), 1);
993 if (!req)
994 croak ("out of memory during eio_req allocation");
995
996 req->callback = SvREFCNT_inc (cb_cv);
997 req->pri = req_pri;
998
999 return req;
1000 }
1001
1002 #define dREQ \
1003 aio_req req = dreq (callback); \
1004
1005 #define REQ_SEND \
1006 PUTBACK; \
1007 req_submit (req); \
1008 SPAGAIN; \
1009 \
1010 if (GIMME_V != G_VOID) \
1011 XPUSHs (req_sv (req, aio_req_stash));
1012
1013 /* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1014 ecb_inline
1015 void
req_set_path(SV * path,SV ** wdsv,SV ** pathsv,eio_wd * wd,void ** ptr)1016 req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1017 {
1018 if (expect_false (SvROK (path)))
1019 {
1020 SV *rv = SvRV (path);
1021 SV *wdob;
1022
1023 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
1024 {
1025 path = AvARRAY (rv)[1];
1026 wdob = AvARRAY (rv)[0];
1027
1028 if (SvOK (wdob))
1029 {
1030 *wd = SvAIO_WD (wdob);
1031 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
1032 }
1033 else
1034 *wd = EIO_INVALID_WD;
1035 }
1036 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
1037 {
1038 *wd = (aio_wd)(long)SvIVX (rv);
1039 *wdsv = SvREFCNT_inc_NN (rv);
1040 *ptr = ".";
1041 return; /* path set to "." */
1042 }
1043 else
1044 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
1045 }
1046
1047 *pathsv = newSVsv (path);
1048 *ptr = SvPVbyte_nolen (*pathsv);
1049 }
1050
1051 ecb_noinline
1052 static void
req_set_path1(aio_req req,SV * path)1053 req_set_path1 (aio_req req, SV *path)
1054 {
1055 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
1056 }
1057
1058 ecb_noinline
1059 static void
req_set_fh_or_path(aio_req req,int type_path,int type_fh,SV * fh_or_path)1060 req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1061 {
1062 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1063
1064 switch (SvTYPE (rv))
1065 {
1066 case SVt_PVIO:
1067 case SVt_PVLV:
1068 case SVt_PVGV:
1069 req->type = type_fh;
1070 req->sv1 = newSVsv (fh_or_path);
1071 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1072 break;
1073
1074 default:
1075 req->type = type_path;
1076 req_set_path1 (req, fh_or_path);
1077 break;
1078 }
1079 }
1080
1081 /*****************************************************************************/
1082
1083 static void
ts_set(struct timespec * ts,NV value)1084 ts_set (struct timespec *ts, NV value)
1085 {
1086 ts->tv_sec = value;
1087 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
1088 }
1089
1090 static NV
ts_get(const struct timespec * ts)1091 ts_get (const struct timespec *ts)
1092 {
1093 return ts->tv_sec + ts->tv_nsec * 1e-9;
1094 }
1095
1096 /*****************************************************************************/
1097
1098 XS(boot_IO__AIO) ecb_cold;
1099
1100 MODULE = IO::AIO PACKAGE = IO::AIO
1101
1102 PROTOTYPES: ENABLE
1103
1104 BOOT:
1105 {
1106 static const struct {
1107 const char *name;
1108 IV iv;
1109 } *civ, const_iv[] = {
1110 # define const_niv(name, value) { # name, (IV) value },
1111 # define const_iv(name) { # name, (IV) name },
1112 # define const_eio(name) { # name, (IV) EIO_ ## name },
1113
1114 /* you have to re-run ./gendef0 after adding/removing any constants here */
1115 /* the first block can be undef if missing */
1116 const_iv (ENOSYS)
1117 const_iv (EXDEV)
1118 const_iv (EBADR)
1119
1120 /* for lseek */
1121 const_iv (SEEK_DATA)
1122 const_iv (SEEK_HOLE)
1123
1124 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1125 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1126 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1127 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1128 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1129 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1130
1131 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1132 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1133 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1134 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1135 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1136
1137 /* the second block will be 0 when missing */
1138 const_iv (O_ACCMODE)
1139
1140 const_iv (O_RDONLY)
1141 const_iv (O_WRONLY)
1142 const_iv (O_RDWR)
1143 const_iv (O_CREAT)
1144 const_iv (O_TRUNC)
1145 const_iv (O_EXCL)
1146 const_iv (O_APPEND)
1147
1148 const_iv (O_ASYNC)
1149 const_iv (O_DIRECT)
1150 const_iv (O_NOATIME)
1151
1152 const_iv (O_CLOEXEC)
1153 const_iv (O_NOCTTY)
1154 const_iv (O_NOFOLLOW)
1155 const_iv (O_NONBLOCK)
1156 const_iv (O_EXEC)
1157 const_iv (O_SEARCH)
1158 const_iv (O_DIRECTORY)
1159 const_iv (O_DSYNC)
1160 const_iv (O_RSYNC)
1161 const_iv (O_SYNC)
1162 const_iv (O_PATH)
1163 const_iv (O_TMPFILE)
1164 const_iv (O_TTY_INIT)
1165
1166 const_iv (S_IFIFO)
1167 const_iv (S_IFCHR)
1168 const_iv (S_IFBLK)
1169 const_iv (S_IFLNK)
1170 const_iv (S_IFREG)
1171 const_iv (S_IFDIR)
1172 const_iv (S_IFWHT)
1173 const_iv (S_IFSOCK)
1174 const_iv (S_IFMT)
1175
1176 const_iv (ST_RDONLY)
1177 const_iv (ST_NOSUID)
1178 const_iv (ST_NODEV)
1179 const_iv (ST_NOEXEC)
1180 const_iv (ST_SYNCHRONOUS)
1181 const_iv (ST_MANDLOCK)
1182 const_iv (ST_WRITE)
1183 const_iv (ST_APPEND)
1184 const_iv (ST_IMMUTABLE)
1185 const_iv (ST_NOATIME)
1186 const_iv (ST_NODIRATIME)
1187 const_iv (ST_RELATIME)
1188
1189 const_iv (PROT_NONE)
1190 const_iv (PROT_EXEC)
1191 const_iv (PROT_READ)
1192 const_iv (PROT_WRITE)
1193
1194 const_iv (MAP_PRIVATE)
1195 const_iv (MAP_SHARED)
1196 const_iv (MAP_FIXED)
1197 const_iv (MAP_ANONYMOUS)
1198
1199 /* linuxish */
1200 const_iv (MAP_LOCKED)
1201 const_iv (MAP_NORESERVE)
1202 const_iv (MAP_POPULATE)
1203 const_iv (MAP_NONBLOCK)
1204 const_iv (MAP_GROWSDOWN)
1205 const_iv (MAP_32BIT)
1206 const_iv (MAP_HUGETLB)
1207 const_iv (MAP_STACK)
1208 const_iv (MAP_FIXED_NOREPLACE)
1209 const_iv (MAP_SHARED_VALIDATE)
1210 const_iv (MAP_SYNC)
1211 const_iv (MAP_UNINITIALIZED)
1212
1213 const_iv (MREMAP_MAYMOVE)
1214 const_iv (MREMAP_FIXED)
1215
1216 const_iv (MSG_CMSG_CLOEXEC)
1217 const_iv (SOCK_CLOEXEC)
1218
1219 const_iv (F_DUPFD_CLOEXEC)
1220
1221 const_iv (F_ADD_SEALS)
1222 const_iv (F_GET_SEALS)
1223 const_iv (F_SEAL_SEAL)
1224 const_iv (F_SEAL_SHRINK)
1225 const_iv (F_SEAL_GROW)
1226 const_iv (F_SEAL_WRITE)
1227
1228 const_iv (F_OFD_GETLK)
1229 const_iv (F_OFD_SETLK)
1230 const_iv (F_OFD_GETLKW)
1231
1232 const_iv (FIFREEZE)
1233 const_iv (FITHAW)
1234 const_iv (FITRIM)
1235 const_iv (FICLONE)
1236 const_iv (FICLONERANGE)
1237 const_iv (FIDEDUPERANGE)
1238
1239 const_iv (FS_IOC_GETFLAGS)
1240 const_iv (FS_IOC_SETFLAGS)
1241 const_iv (FS_IOC_GETVERSION)
1242 const_iv (FS_IOC_SETVERSION)
1243 const_iv (FS_IOC_FIEMAP)
1244 const_iv (FS_IOC_FSGETXATTR)
1245 const_iv (FS_IOC_FSSETXATTR)
1246 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1247 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1248 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1249
1250 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1251
1252 const_iv (FS_SECRM_FL)
1253 const_iv (FS_UNRM_FL)
1254 const_iv (FS_COMPR_FL)
1255 const_iv (FS_SYNC_FL)
1256 const_iv (FS_IMMUTABLE_FL)
1257 const_iv (FS_APPEND_FL)
1258 const_iv (FS_NODUMP_FL)
1259 const_iv (FS_NOATIME_FL)
1260 const_iv (FS_DIRTY_FL)
1261 const_iv (FS_COMPRBLK_FL)
1262 const_iv (FS_NOCOMP_FL)
1263 const_iv (FS_ENCRYPT_FL)
1264 const_iv (FS_BTREE_FL)
1265 const_iv (FS_INDEX_FL)
1266 const_iv (FS_JOURNAL_DATA_FL)
1267 const_iv (FS_NOTAIL_FL)
1268 const_iv (FS_DIRSYNC_FL)
1269 const_iv (FS_TOPDIR_FL)
1270 const_iv (FS_FL_USER_MODIFIABLE)
1271
1272 const_iv (FS_XFLAG_REALTIME)
1273 const_iv (FS_XFLAG_PREALLOC)
1274 const_iv (FS_XFLAG_IMMUTABLE)
1275 const_iv (FS_XFLAG_APPEND)
1276 const_iv (FS_XFLAG_SYNC)
1277 const_iv (FS_XFLAG_NOATIME)
1278 const_iv (FS_XFLAG_NODUMP)
1279 const_iv (FS_XFLAG_RTINHERIT)
1280 const_iv (FS_XFLAG_PROJINHERIT)
1281 const_iv (FS_XFLAG_NOSYMLINKS)
1282 const_iv (FS_XFLAG_EXTSIZE)
1283 const_iv (FS_XFLAG_EXTSZINHERIT)
1284 const_iv (FS_XFLAG_NODEFRAG)
1285 const_iv (FS_XFLAG_FILESTREAM)
1286 const_iv (FS_XFLAG_DAX)
1287 const_iv (FS_XFLAG_HASATTR)
1288
1289 const_iv (FIEMAP_FLAG_SYNC)
1290 const_iv (FIEMAP_FLAG_XATTR)
1291 const_iv (FIEMAP_FLAGS_COMPAT)
1292 const_iv (FIEMAP_EXTENT_LAST)
1293 const_iv (FIEMAP_EXTENT_UNKNOWN)
1294 const_iv (FIEMAP_EXTENT_DELALLOC)
1295 const_iv (FIEMAP_EXTENT_ENCODED)
1296 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1297 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1298 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1299 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1300 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1301 const_iv (FIEMAP_EXTENT_MERGED)
1302 const_iv (FIEMAP_EXTENT_SHARED)
1303
1304 const_iv (SPLICE_F_MOVE)
1305 const_iv (SPLICE_F_NONBLOCK)
1306 const_iv (SPLICE_F_MORE)
1307 const_iv (SPLICE_F_GIFT)
1308
1309 const_iv (EFD_CLOEXEC)
1310 const_iv (EFD_NONBLOCK)
1311 const_iv (EFD_SEMAPHORE)
1312
1313 const_iv (MFD_CLOEXEC)
1314 const_iv (MFD_ALLOW_SEALING)
1315 const_iv (MFD_HUGETLB)
1316
1317 const_iv (CLOCK_REALTIME)
1318 const_iv (CLOCK_MONOTONIC)
1319 const_iv (CLOCK_BOOTTIME)
1320 const_iv (CLOCK_REALTIME_ALARM)
1321 const_iv (CLOCK_BOOTTIME_ALARM)
1322
1323 const_iv (TFD_NONBLOCK)
1324 const_iv (TFD_CLOEXEC)
1325
1326 const_iv (TFD_TIMER_ABSTIME)
1327 const_iv (TFD_TIMER_CANCEL_ON_SET)
1328
1329 const_iv (STATX_TYPE)
1330 const_iv (STATX_MODE)
1331 const_iv (STATX_NLINK)
1332 const_iv (STATX_UID)
1333 const_iv (STATX_GID)
1334 const_iv (STATX_ATIME)
1335 const_iv (STATX_MTIME)
1336 const_iv (STATX_CTIME)
1337 const_iv (STATX_INO)
1338 const_iv (STATX_SIZE)
1339 const_iv (STATX_BLOCKS)
1340 const_iv (STATX_BASIC_STATS)
1341 const_iv (STATX_ALL)
1342 const_iv (STATX_BTIME)
1343 const_iv (STATX_ATTR_COMPRESSED)
1344 const_iv (STATX_ATTR_IMMUTABLE)
1345 const_iv (STATX_ATTR_APPEND)
1346 const_iv (STATX_ATTR_NODUMP)
1347 const_iv (STATX_ATTR_ENCRYPTED)
1348 const_iv (STATX_ATTR_AUTOMOUNT)
1349
1350 const_iv (AT_FDCWD)
1351 const_iv (AT_SYMLINK_NOFOLLOW)
1352 const_iv (AT_EACCESS)
1353 const_iv (AT_REMOVEDIR)
1354 const_iv (AT_SYMLINK_FOLLOW)
1355 const_iv (AT_NO_AUTOMOUNT)
1356 const_iv (AT_EMPTY_PATH)
1357 const_iv (AT_STATX_SYNC_TYPE)
1358 const_iv (AT_STATX_AS_STAT)
1359 const_iv (AT_STATX_FORCE_SYNC)
1360 const_iv (AT_STATX_DONT_SYNC)
1361 const_iv (AT_RECURSIVE)
1362
1363 const_iv (OPEN_TREE_CLONE)
1364
1365 const_iv (FSOPEN_CLOEXEC)
1366
1367 const_iv (FSPICK_CLOEXEC)
1368 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1369 const_iv (FSPICK_NO_AUTOMOUNT)
1370 const_iv (FSPICK_EMPTY_PATH)
1371
1372 const_iv (MOVE_MOUNT_F_SYMLINKS)
1373 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1374 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1375 const_iv (MOVE_MOUNT_T_SYMLINKS)
1376 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1377 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1378
1379 /* waitid */
1380 const_iv (P_PID)
1381 const_iv (P_PIDFD)
1382 const_iv (P_PGID)
1383 const_iv (P_ALL)
1384
1385 const_iv (FSCONFIG_SET_FLAG)
1386 const_iv (FSCONFIG_SET_STRING)
1387 const_iv (FSCONFIG_SET_BINARY)
1388 const_iv (FSCONFIG_SET_PATH)
1389 const_iv (FSCONFIG_SET_PATH_EMPTY)
1390 const_iv (FSCONFIG_SET_FD)
1391 const_iv (FSCONFIG_CMD_CREATE)
1392 const_iv (FSCONFIG_CMD_RECONFIGURE)
1393
1394 const_iv (MOUNT_ATTR_RDONLY)
1395 const_iv (MOUNT_ATTR_NOSUID)
1396 const_iv (MOUNT_ATTR_NODEV)
1397 const_iv (MOUNT_ATTR_NOEXEC)
1398 const_iv (MOUNT_ATTR__ATIME)
1399 const_iv (MOUNT_ATTR_RELATIME)
1400 const_iv (MOUNT_ATTR_NOATIME)
1401 const_iv (MOUNT_ATTR_STRICTATIME)
1402 const_iv (MOUNT_ATTR_NODIRATIME)
1403
1404 /* these are libeio constants, and are independent of gendef0 */
1405 const_eio (SEEK_SET)
1406 const_eio (SEEK_CUR)
1407 const_eio (SEEK_END)
1408
1409 const_eio (MCL_FUTURE)
1410 const_eio (MCL_CURRENT)
1411 const_eio (MCL_ONFAULT)
1412
1413 const_eio (MS_ASYNC)
1414 const_eio (MS_INVALIDATE)
1415 const_eio (MS_SYNC)
1416
1417 const_eio (MT_MODIFY)
1418
1419 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1420 const_eio (SYNC_FILE_RANGE_WRITE)
1421 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1422
1423 const_eio (FALLOC_FL_KEEP_SIZE)
1424 const_eio (FALLOC_FL_PUNCH_HOLE)
1425 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1426 const_eio (FALLOC_FL_ZERO_RANGE)
1427 const_eio (FALLOC_FL_INSERT_RANGE)
1428 const_eio (FALLOC_FL_UNSHARE_RANGE)
1429
1430 const_eio (RENAME_NOREPLACE)
1431 const_eio (RENAME_EXCHANGE)
1432 const_eio (RENAME_WHITEOUT)
1433
1434 const_eio (READDIR_DENTS)
1435 const_eio (READDIR_DIRS_FIRST)
1436 const_eio (READDIR_STAT_ORDER)
1437 const_eio (READDIR_FOUND_UNKNOWN)
1438
1439 const_eio (DT_UNKNOWN)
1440 const_eio (DT_FIFO)
1441 const_eio (DT_CHR)
1442 const_eio (DT_DIR)
1443 const_eio (DT_BLK)
1444 const_eio (DT_REG)
1445 const_eio (DT_LNK)
1446 const_eio (DT_SOCK)
1447 const_eio (DT_WHT)
1448 };
1449
1450 aio_stash = gv_stashpv ("IO::AIO" , 1);
1451 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1452 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1453 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1454
1455 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1456 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1457
1458 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1459
1460 /* allocate dummy pipe fd for aio_close */
1461 {
1462 int pipefd [2];
1463
1464 if (
1465 #ifdef _WIN32
1466 _pipe (pipefd, 1, _O_BINARY) < 0
1467 #else
1468 pipe (pipefd) < 0
1469 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1470 #endif
1471 || close (pipefd [1]) < 0
1472 )
1473 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1474
1475 close_fd = pipefd [0];
1476 }
1477
1478 reinit ();
1479 }
1480
1481 void
1482 reinit ()
1483 PROTOTYPE:
1484
1485 void
1486 max_poll_reqs (unsigned int nreqs)
1487 PROTOTYPE: $
1488 CODE:
1489 eio_set_max_poll_reqs (nreqs);
1490
1491 void
1492 max_poll_time (double nseconds)
1493 PROTOTYPE: $
1494 CODE:
1495 eio_set_max_poll_time (nseconds);
1496
1497 void
1498 min_parallel (unsigned int nthreads)
1499 PROTOTYPE: $
1500 CODE:
1501 eio_set_min_parallel (nthreads);
1502
1503 void
1504 max_parallel (unsigned int nthreads)
1505 PROTOTYPE: $
1506 CODE:
1507 eio_set_max_parallel (nthreads);
1508
1509 void
1510 max_idle (unsigned int nthreads)
1511 PROTOTYPE: $
1512 CODE:
1513 eio_set_max_idle (nthreads);
1514
1515 void
1516 idle_timeout (unsigned int seconds)
1517 PROTOTYPE: $
1518 CODE:
1519 eio_set_idle_timeout (seconds);
1520
1521 void
1522 max_outstanding (unsigned int maxreqs)
1523 PROTOTYPE: $
1524 CODE:
1525 max_outstanding = maxreqs;
1526
1527 void
1528 aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1529 PPCODE:
1530 {
1531 dREQ;
1532
1533 req->type = EIO_WD_OPEN;
1534 req_set_path1 (req, pathname);
1535
1536 REQ_SEND;
1537 }
1538
1539 void
1540 aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1541 PPCODE:
1542 {
1543 dREQ;
1544
1545 req->type = EIO_OPEN;
1546 req_set_path1 (req, pathname);
1547 req->int1 = flags;
1548 req->int2 = mode;
1549
1550 REQ_SEND;
1551 }
1552
1553 void
1554 aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1555 ALIAS:
1556 aio_fsync = EIO_FSYNC
1557 aio_fdatasync = EIO_FDATASYNC
1558 aio_syncfs = EIO_SYNCFS
1559 PPCODE:
1560 {
1561 int fd = s_fileno_croak (fh, 0);
1562 dREQ;
1563
1564 req->type = ix;
1565 req->sv1 = newSVsv (fh);
1566 req->int1 = fd;
1567
1568 REQ_SEND;
1569 }
1570
1571 void
1572 aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1573 PPCODE:
1574 {
1575 int fd = s_fileno_croak (fh, 0);
1576 dREQ;
1577
1578 req->type = EIO_SYNC_FILE_RANGE;
1579 req->sv1 = newSVsv (fh);
1580 req->int1 = fd;
1581 req->offs = offset;
1582 req->size = nbytes;
1583 req->int2 = flags;
1584
1585 REQ_SEND;
1586 }
1587
1588 void
1589 aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1590 PPCODE:
1591 {
1592 int fd = s_fileno_croak (fh, 0);
1593 dREQ;
1594
1595 req->type = EIO_FALLOCATE;
1596 req->sv1 = newSVsv (fh);
1597 req->int1 = fd;
1598 req->int2 = mode;
1599 req->offs = offset;
1600 req->size = len;
1601
1602 REQ_SEND;
1603 }
1604
1605 void
1606 aio_close (SV *fh, SV *callback = &PL_sv_undef)
1607 PPCODE:
1608 {
1609 int fd = s_fileno_croak (fh, 0);
1610 dREQ;
1611 #if 0
1612 /* partially duplicate logic in s_fileno */
1613 SvGETMAGIC (fh);
1614
1615 if (SvROK (fh))
1616 {
1617 fh = SvRV (fh);
1618 SvGETMAGIC (fh);
1619 }
1620
1621 if (SvTYPE (fh) == SVt_PVGV)
1622 {
1623 /* perl filehandle */
1624 PerlIOUnix_refcnt_inc (fd);
1625 do_close ((GV *)fh, 1);
1626
1627 req->type = EIO_CLOSE;
1628 req->int1 = fd;
1629 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1630 }
1631 else
1632 #endif
1633 {
1634 /* fd number */
1635 req->type = EIO_DUP2;
1636 req->int1 = close_fd;
1637 req->sv2 = newSVsv (fh);
1638 req->int2 = fd;
1639 }
1640
1641 REQ_SEND;
1642 }
1643
1644 void
1645 aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1646 PPCODE:
1647 {
1648 int fd = s_fileno_croak (fh, 0);
1649 dREQ;
1650
1651 req->type = EIO_SEEK;
1652 req->sv1 = newSVsv (fh);
1653 req->int1 = fd;
1654 req->offs = SvVAL64 (offset);
1655 req->int2 = whence;
1656
1657 REQ_SEND;
1658 }
1659
1660 void
1661 aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1662 ALIAS:
1663 aio_read = EIO_READ
1664 aio_write = EIO_WRITE
1665 PPCODE:
1666 {
1667 STRLEN svlen;
1668 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1669 char *svptr = SvPVbyte (data, svlen);
1670 UV len = SvUV (length);
1671
1672 if (dataoffset < 0)
1673 dataoffset += svlen;
1674
1675 if (dataoffset < 0 || dataoffset > svlen)
1676 croak ("dataoffset outside of data scalar");
1677
1678 if (ix == EIO_WRITE)
1679 {
1680 /* write: check length and adjust. */
1681 if (!SvOK (length) || len + dataoffset > svlen)
1682 len = svlen - dataoffset;
1683 }
1684 else
1685 {
1686 /* read: check type and grow scalar as necessary */
1687 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1688 svptr = sv_grow (data, len + dataoffset + 1);
1689 else if (SvCUR (data) < len + dataoffset)
1690 croak ("length + dataoffset outside of scalar, and cannot grow");
1691 }
1692
1693 {
1694 dREQ;
1695
1696 req->type = ix;
1697 req->sv1 = newSVsv (fh);
1698 req->int1 = fd;
1699 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1700 req->size = len;
1701 req->sv2 = SvREFCNT_inc (data);
1702 req->ptr2 = (char *)svptr + dataoffset;
1703 req->stroffset = dataoffset;
1704
1705 if (!SvREADONLY (data))
1706 {
1707 SvREADONLY_on (data);
1708 req->flags |= FLAG_SV2_RO_OFF;
1709 }
1710
1711 REQ_SEND;
1712 }
1713 }
1714
1715 void
1716 aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1717 ALIAS:
1718 aio_ioctl = EIO_IOCTL
1719 aio_fcntl = EIO_FCNTL
1720 PPCODE:
1721 {
1722 int fd = s_fileno_croak (fh, 0);
1723 char *svptr;
1724
1725 if (SvPOK (arg) || !SvNIOK (arg))
1726 {
1727 STRLEN svlen;
1728 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1729 #ifdef IOCPARM_LEN
1730 STRLEN need = IOCPARM_LEN (request);
1731 #else
1732 STRLEN need = 256;
1733 #endif
1734
1735 if (svlen < need)
1736 svptr = SvGROW (arg, need);
1737 }
1738 else
1739 svptr = (char *)SvIV (arg);
1740
1741 {
1742 dREQ;
1743
1744 req->type = ix;
1745 req->sv1 = newSVsv (fh);
1746 req->int1 = fd;
1747 req->int2 = (long)request;
1748 req->sv2 = SvREFCNT_inc (arg);
1749 req->ptr2 = svptr;
1750
1751 REQ_SEND;
1752 }
1753 }
1754
1755 void
1756 aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1757 ALIAS:
1758 aio_readlink = EIO_READLINK
1759 aio_realpath = EIO_REALPATH
1760 PPCODE:
1761 {
1762 dREQ;
1763
1764 req->type = ix;
1765 req_set_path1 (req, pathname);
1766
1767 REQ_SEND;
1768 }
1769
1770 void
1771 aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1772 PPCODE:
1773 {
1774 int ifd = s_fileno_croak (in_fh , 0);
1775 int ofd = s_fileno_croak (out_fh, 1);
1776 dREQ;
1777
1778 req->type = EIO_SENDFILE;
1779 req->sv1 = newSVsv (out_fh);
1780 req->int1 = ofd;
1781 req->sv2 = newSVsv (in_fh);
1782 req->int2 = ifd;
1783 req->offs = in_offset;
1784 req->size = length;
1785
1786 REQ_SEND;
1787 }
1788
1789 void
1790 aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1791 PPCODE:
1792 {
1793 int fd = s_fileno_croak (fh, 0);
1794 dREQ;
1795
1796 req->type = EIO_READAHEAD;
1797 req->sv1 = newSVsv (fh);
1798 req->int1 = fd;
1799 req->offs = offset;
1800 req->size = length;
1801
1802 REQ_SEND;
1803 }
1804
1805 void
1806 aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1807 ALIAS:
1808 aio_stat = EIO_STAT
1809 aio_lstat = EIO_LSTAT
1810 aio_statvfs = EIO_STATVFS
1811 PPCODE:
1812 {
1813 dREQ;
1814
1815 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1816
1817 REQ_SEND;
1818 }
1819
1820 void
1821 st_xtime ()
1822 ALIAS:
1823 st_atime = 0x01
1824 st_mtime = 0x02
1825 st_ctime = 0x04
1826 st_btime = 0x08
1827 st_xtime = 0x0f
1828 PPCODE:
1829 EXTEND (SP, 4);
1830 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1831 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1832 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1833 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1834
1835 void
1836 st_xtimensec ()
1837 ALIAS:
1838 st_atimensec = 0x01
1839 st_mtimensec = 0x02
1840 st_ctimensec = 0x04
1841 st_btimensec = 0x08
1842 st_xtimensec = 0x0f
1843 st_btimesec = 0x10
1844 st_gen = 0x20
1845 PPCODE:
1846 EXTEND (SP, 4);
1847 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1848 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1849 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1850 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1851 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1852 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1853
1854 UV
1855 major (UV dev)
1856 ALIAS:
1857 minor = 1
1858 CODE:
1859 RETVAL = ix ? minor (dev) : major (dev);
1860 OUTPUT:
1861 RETVAL
1862
1863 UV
1864 makedev (UV maj, UV min)
1865 CODE:
1866 RETVAL = makedev (maj, min);
1867 OUTPUT:
1868 RETVAL
1869
1870 void
1871 aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1872 PPCODE:
1873 {
1874 dREQ;
1875
1876 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1877 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1878 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1879
1880 REQ_SEND;
1881 }
1882
1883 void
1884 aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1885 PPCODE:
1886 {
1887 dREQ;
1888
1889 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1890 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1891
1892 REQ_SEND;
1893 }
1894
1895 void
1896 aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1897 PPCODE:
1898 {
1899 dREQ;
1900
1901 req->int2 = mode;
1902 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1903
1904 REQ_SEND;
1905 }
1906
1907 void
1908 aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1909 PPCODE:
1910 {
1911 dREQ;
1912
1913 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1914 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1915 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1916
1917 REQ_SEND;
1918 }
1919
1920 void
1921 aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1922 PPCODE:
1923 {
1924 dREQ;
1925
1926 req->type = EIO_READDIR;
1927 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1928
1929 if (flags & EIO_READDIR_DENTS)
1930 req->int1 |= EIO_READDIR_CUSTOM2;
1931
1932 req_set_path1 (req, pathname);
1933
1934 REQ_SEND;
1935 }
1936
1937 void
1938 aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1939 PPCODE:
1940 {
1941 dREQ;
1942
1943 req->type = EIO_MKDIR;
1944 req->int2 = mode;
1945 req_set_path1 (req, pathname);
1946
1947 REQ_SEND;
1948 }
1949
1950 void
1951 aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1952 ALIAS:
1953 aio_unlink = EIO_UNLINK
1954 aio_rmdir = EIO_RMDIR
1955 aio_readdir = EIO_READDIR
1956 PPCODE:
1957 {
1958 dREQ;
1959
1960 req->type = ix;
1961 req_set_path1 (req, pathname);
1962
1963 REQ_SEND;
1964 }
1965
1966 void
1967 aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1968 ALIAS:
1969 aio_link = EIO_LINK
1970 aio_symlink = EIO_SYMLINK
1971 aio_rename = EIO_RENAME
1972 PPCODE:
1973 {
1974 eio_wd wd2 = 0;
1975 dREQ;
1976
1977 req->type = ix;
1978 req_set_path1 (req, oldpath);
1979 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1980 req->int3 = (long)wd2;
1981
1982 REQ_SEND;
1983 }
1984
1985 void
1986 aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1987 PPCODE:
1988 {
1989 eio_wd wd2 = 0;
1990 dREQ;
1991
1992 req->type = EIO_RENAME;
1993 req_set_path1 (req, oldpath);
1994 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1995 req->int2 = flags;
1996 req->int3 = (long)wd2;
1997
1998 REQ_SEND;
1999 }
2000
2001 void
2002 aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
2003 PPCODE:
2004 {
2005 dREQ;
2006
2007 req->type = EIO_MKNOD;
2008 req->int2 = (mode_t)mode;
2009 req->offs = dev;
2010 req_set_path1 (req, pathname);
2011
2012 REQ_SEND;
2013 }
2014
2015 void
2016 aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
2017 ALIAS:
2018 aio_mtouch = EIO_MTOUCH
2019 aio_msync = EIO_MSYNC
2020 PPCODE:
2021 {
2022 STRLEN svlen;
2023 char *svptr = SvPVbyte (data, svlen);
2024 UV len = SvUV (length);
2025
2026 if (flags < 0)
2027 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
2028
2029 if (offset < 0)
2030 offset += svlen;
2031
2032 if (offset < 0 || offset > svlen)
2033 croak ("offset outside of scalar");
2034
2035 if (!SvOK (length) || len + offset > svlen)
2036 len = svlen - offset;
2037
2038 {
2039 dREQ;
2040
2041 req->type = ix;
2042 req->sv2 = SvREFCNT_inc (data);
2043 req->ptr2 = (char *)svptr + offset;
2044 req->size = len;
2045 req->int1 = flags;
2046
2047 REQ_SEND;
2048 }
2049 }
2050
2051 void
2052 aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2053 PPCODE:
2054 {
2055 STRLEN svlen;
2056 char *svptr = SvPVbyte (data, svlen);
2057 UV len = SvUV (length);
2058
2059 if (offset < 0)
2060 offset += svlen;
2061
2062 if (offset < 0 || offset > svlen)
2063 croak ("offset outside of scalar");
2064
2065 if (!SvOK (length) || len + offset > svlen)
2066 len = svlen - offset;
2067
2068 {
2069 dREQ;
2070
2071 req->type = EIO_MLOCK;
2072 req->sv2 = SvREFCNT_inc (data);
2073 req->ptr2 = (char *)svptr + offset;
2074 req->size = len;
2075
2076 REQ_SEND;
2077 }
2078 }
2079
2080 void
2081 aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2082 PPCODE:
2083 {
2084 dREQ;
2085
2086 req->type = EIO_MLOCKALL;
2087 req->int1 = flags;
2088
2089 REQ_SEND;
2090 }
2091
2092 void
2093 aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2094 PPCODE:
2095 {
2096 int fd = s_fileno_croak (fh, 0);
2097 dREQ;
2098
2099 req->type = EIO_CUSTOM;
2100 req->sv1 = newSVsv (fh);
2101 req->int1 = fd;
2102
2103 req->feed = fiemap;
2104 #if HAVE_FIEMAP
2105 /* keep our fingers crossed that the next two types are 64 bit */
2106 req->offs = start;
2107 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2108 req->int2 = flags;
2109 req->int3 = SvOK (count) ? SvIV (count) : -1;
2110 #endif
2111
2112 REQ_SEND;
2113 }
2114
2115 void
2116 aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
2117 PPCODE:
2118 {
2119 char *svptr = 0;
2120
2121 sv_clear_foreign (data);
2122
2123 if (length) /* known length, directly read into scalar */
2124 {
2125 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2126 svptr = sv_grow (data, length + 1);
2127 else if (SvCUR (data) < length)
2128 croak ("length outside of scalar, and cannot grow");
2129 else
2130 svptr = SvPVbyte_nolen (data);
2131 }
2132
2133 {
2134 dREQ;
2135
2136 req->type = EIO_SLURP;
2137 req_set_path1 (req, pathname);
2138 req->offs = offset;
2139 req->size = length;
2140 req->sv2 = SvREFCNT_inc (data);
2141 req->ptr2 = svptr;
2142
2143 if (!SvREADONLY (data))
2144 {
2145 SvREADONLY_on (data);
2146 req->flags |= FLAG_SV2_RO_OFF;
2147 }
2148
2149 REQ_SEND;
2150 }
2151 }
2152
2153 void
2154 aio_busy (double delay, SV *callback = &PL_sv_undef)
2155 PPCODE:
2156 {
2157 dREQ;
2158
2159 req->type = EIO_BUSY;
2160 req->nv1 = delay < 0. ? 0. : delay;
2161
2162 REQ_SEND;
2163 }
2164
2165 void
2166 aio_group (SV *callback = &PL_sv_undef)
2167 PPCODE:
2168 {
2169 dREQ;
2170
2171 req->type = EIO_GROUP;
2172
2173 PUTBACK;
2174 req_submit (req);
2175 SPAGAIN;
2176
2177 XPUSHs (req_sv (req, aio_grp_stash));
2178 }
2179
2180 void
2181 aio_nop (SV *callback = &PL_sv_undef)
2182 ALIAS:
2183 aio_nop = EIO_NOP
2184 aio_sync = EIO_SYNC
2185 PPCODE:
2186 {
2187 dREQ;
2188
2189 req->type = ix;
2190
2191 REQ_SEND;
2192 }
2193
2194 int
2195 aioreq_pri (int pri = NO_INIT)
2196 CODE:
2197 RETVAL = next_pri;
2198 if (items > 0)
2199 {
2200 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
2201 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
2202 next_pri = pri;
2203 }
2204 OUTPUT:
2205 RETVAL
2206
2207 void
2208 aioreq_nice (int nice = 0)
2209 CODE:
2210 nice = next_pri - nice;
2211 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
2212 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
2213 next_pri = nice;
2214
2215 void
2216 flush ()
2217 CODE:
2218 while (eio_nreqs ())
2219 {
2220 poll_wait ();
2221 poll_cb ();
2222 }
2223
2224 int
2225 poll ()
2226 CODE:
2227 poll_wait ();
2228 RETVAL = poll_cb ();
2229 OUTPUT:
2230 RETVAL
2231
2232 int
2233 poll_fileno ()
2234 CODE:
2235 RETVAL = s_epipe_fd (&respipe);
2236 OUTPUT:
2237 RETVAL
2238
2239 int
2240 poll_cb (...)
2241 PROTOTYPE:
2242 CODE:
2243 RETVAL = poll_cb ();
2244 OUTPUT:
2245 RETVAL
2246
2247 void
2248 poll_wait ()
2249 CODE:
2250 poll_wait ();
2251
2252 int
2253 nreqs ()
2254 CODE:
2255 RETVAL = eio_nreqs ();
2256 OUTPUT:
2257 RETVAL
2258
2259 int
2260 nready ()
2261 CODE:
2262 RETVAL = eio_nready ();
2263 OUTPUT:
2264 RETVAL
2265
2266 int
2267 npending ()
2268 CODE:
2269 RETVAL = eio_npending ();
2270 OUTPUT:
2271 RETVAL
2272
2273 int
2274 nthreads ()
2275 CODE:
2276 RETVAL = eio_nthreads ();
2277 OUTPUT:
2278 RETVAL
2279
2280 int
2281 fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2282 CODE:
2283 RETVAL = posix_fadvise (fh, offset, length, advice);
2284 OUTPUT:
2285 RETVAL
2286
2287 IV
2288 sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2289 CODE:
2290 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2291 OUTPUT:
2292 RETVAL
2293
2294 void
2295 mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2296 PPCODE:
2297 sv_clear_foreign (scalar);
2298 {
2299 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2300 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2301 if (addr == (void *)-1)
2302 XSRETURN_NO;
2303
2304 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2305
2306 if (!(prot & PROT_WRITE))
2307 SvREADONLY_on (scalar);
2308
2309 XSRETURN_YES;
2310 }
2311
2312 void
2313 munmap (SV *scalar)
2314 CODE:
2315 sv_clear_foreign (scalar);
2316
2317 SV *
2318 mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2319 CODE:
2320 {
2321 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2322 void *new;
2323
2324 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2325 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2326
2327 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2328
2329 RETVAL = &PL_sv_no;
2330
2331 if (new != (void *)-1)
2332 {
2333 RETVAL = new == (void *)mg->mg_ptr
2334 ? newSVpvn ("0 but true", 10)
2335 : &PL_sv_yes;
2336
2337 mg->mg_ptr = (char *)new;
2338 mg->mg_obj = (SV *)new_length;
2339
2340 SvPVX (scalar) = mg->mg_ptr;
2341 SvCUR_set (scalar, new_length);
2342 }
2343 }
2344 OUTPUT:
2345 RETVAL
2346
2347 int
2348 madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2349 ALIAS:
2350 mprotect = 1
2351 CODE:
2352 {
2353 STRLEN svlen;
2354 void *addr = SvPVbyte (scalar, svlen);
2355 STRLEN len = SvUV (length);
2356
2357 if (offset < 0)
2358 offset += svlen;
2359
2360 if (offset < 0 || offset > svlen)
2361 croak ("offset outside of scalar");
2362
2363 if (!SvOK (length) || len + offset > svlen)
2364 len = svlen - offset;
2365
2366 addr = (void *)(((intptr_t)addr) + offset);
2367 eio_page_align (&addr, &len);
2368
2369 switch (ix)
2370 {
2371 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2372 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2373 }
2374 }
2375 OUTPUT:
2376 RETVAL
2377
2378 int
2379 munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2380 CODE:
2381 {
2382 STRLEN svlen;
2383 void *addr = SvPVbyte (scalar, svlen);
2384 size_t len = SvUV (length);
2385
2386 if (offset < 0)
2387 offset += svlen;
2388
2389 if (offset < 0 || offset > svlen)
2390 croak ("offset outside of scalar");
2391
2392 if (!SvOK (length) || len + offset > svlen)
2393 len = svlen - offset;
2394
2395 addr = (void *)(((intptr_t)addr) + offset);
2396 eio_page_align (&addr, &len);
2397 #if _POSIX_MEMLOCK_RANGE
2398 RETVAL = munlock (addr, len);
2399 #else
2400 RETVAL = EIO_ENOSYS ();
2401 #endif
2402 }
2403 OUTPUT:
2404 RETVAL
2405
2406 int
2407 mlockall (int flags)
2408 PROTOTYPE: $;
2409 CODE:
2410 RETVAL = eio_mlockall_sync (flags);
2411 OUTPUT:
2412 RETVAL
2413
2414 int
2415 munlockall ()
2416 CODE:
2417 #if _POSIX_MEMLOCK
2418 munlockall ();
2419 #else
2420 RETVAL = EIO_ENOSYS ();
2421 #endif
2422 OUTPUT:
2423 RETVAL
2424
2425 int
statx(SV8 * pathname,int flags,UV mask)2426 statx (SV8 *pathname, int flags, UV mask)
2427 CODE:
2428 {
2429 /* undocumented, and might go away, and anyway, should use eio_statx */
2430 SV *wdsv = 0;
2431 SV *pathsv = 0;
2432 eio_wd wd = EIO_CWD;
2433 void *ptr;
2434 int res;
2435
2436 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2437 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2438
2439 SvREFCNT_dec (pathsv);
2440 SvREFCNT_dec (wdsv);
2441 }
2442 OUTPUT:
2443 RETVAL
2444
2445 U32
2446 stx_mode ()
2447 PROTOTYPE:
2448 CODE:
2449 #if HAVE_STATX
2450 RETVAL = stx.stx_mode;
2451 #else
2452 XSRETURN_UNDEF;
2453 #endif
2454 OUTPUT:
2455 RETVAL
2456
2457 #define STATX_OFFSET_mask statx_offsetof (stx_mask)
2458 #define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2459 #define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2460 #define STATX_OFFSET_uid statx_offsetof (stx_uid)
2461 #define STATX_OFFSET_gid statx_offsetof (stx_gid)
2462 #define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2463 #define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2464 #define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2465 #define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2466 #define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2467 #define STATX_OFFSET_ino statx_offsetof (stx_ino)
2468 #define STATX_OFFSET_size statx_offsetof (stx_size)
2469 #define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2470 #define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2471 #define STATX_OFFSET_atime statx_offsetof (stx_atime)
2472 #define STATX_OFFSET_btime statx_offsetof (stx_btime)
2473 #define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2474 #define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2475
2476 U32
2477 stx_mask ()
2478 PROTOTYPE:
2479 ALIAS:
2480 stx_mask = STATX_OFFSET_mask
2481 stx_blksize = STATX_OFFSET_blksize
2482 stx_nlink = STATX_OFFSET_nlink
2483 stx_uid = STATX_OFFSET_uid
2484 stx_gid = STATX_OFFSET_gid
2485 stx_rdev_major = STATX_OFFSET_rdev_major
2486 stx_rdev_minor = STATX_OFFSET_rdev_minor
2487 stx_dev_major = STATX_OFFSET_dev_major
2488 stx_dev_minor = STATX_OFFSET_dev_minor
2489 CODE:
2490 #if HAVE_STATX
2491 RETVAL = *(__u32 *)((char *)&stx + ix);
2492 #else
2493 XSRETURN_UNDEF;
2494 #endif
2495 OUTPUT:
2496 RETVAL
2497
2498 VAL64
2499 stx_attributes ()
2500 PROTOTYPE:
2501 ALIAS:
2502 stx_attributes = STATX_OFFSET_attributes
2503 stx_ino = STATX_OFFSET_ino
2504 stx_size = STATX_OFFSET_size
2505 stx_blocks = STATX_OFFSET_blocks
2506 stx_attributes_mask = STATX_OFFSET_attributes_mask
2507 CODE:
2508 #if HAVE_STATX
2509 RETVAL = *(__u64 *)((char *)&stx + ix);
2510 #else
2511 XSRETURN_UNDEF;
2512 #endif
2513 OUTPUT:
2514 RETVAL
2515
2516 NV
2517 stx_atime ()
2518 PROTOTYPE:
2519 ALIAS:
2520 stx_atime = STATX_OFFSET_atime
2521 stx_btime = STATX_OFFSET_btime
2522 stx_ctime = STATX_OFFSET_ctime
2523 stx_mtime = STATX_OFFSET_mtime
2524 CODE:
2525 #if HAVE_STATX
2526 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2527 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2528 #else
2529 XSRETURN_UNDEF;
2530 #endif
2531 OUTPUT:
2532 RETVAL
2533
2534 VAL64
2535 stx_atimesec ()
2536 PROTOTYPE:
2537 ALIAS:
2538 stx_atimesec = STATX_OFFSET_atime
2539 stx_btimesec = STATX_OFFSET_btime
2540 stx_ctimesec = STATX_OFFSET_ctime
2541 stx_mtimesec = STATX_OFFSET_mtime
2542 CODE:
2543 #if HAVE_STATX
2544 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2545 RETVAL = ts->tv_sec;
2546 #else
2547 XSRETURN_UNDEF;
2548 #endif
2549 OUTPUT:
2550 RETVAL
2551
2552 U32
2553 stx_atimensec ()
2554 PROTOTYPE:
2555 ALIAS:
2556 stx_atimensec = STATX_OFFSET_atime
2557 stx_btimensec = STATX_OFFSET_btime
2558 stx_ctimensec = STATX_OFFSET_ctime
2559 stx_mtimensec = STATX_OFFSET_mtime
2560 CODE:
2561 #if HAVE_STATX
2562 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2563 RETVAL = ts->tv_nsec;
2564 #else
2565 RETVAL = 0;
2566 #endif
2567 OUTPUT:
2568 RETVAL
2569
2570 void
accept4(aio_rfd rfh,SV * sockaddr,int salen,int flags)2571 accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2572 PPCODE:
2573 {
2574 SV *retval;
2575 #if HAVE_ACCEPT4
2576 socklen_t salen_ = salen ? salen + 1 : 0;
2577
2578 if (salen)
2579 {
2580 sv_upgrade (sockaddr, SVt_PV);
2581 sv_grow (sockaddr, salen_);
2582 }
2583
2584 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2585
2586 retval = newmortalFH (res, O_RDWR);
2587
2588 if (res >= 0 && salen > 0)
2589 {
2590 if (salen_ > salen + 1)
2591 salen_ = salen + 1;
2592
2593 SvPOK_only (sockaddr);
2594 SvCUR_set (sockaddr, salen_);
2595 }
2596 #else
2597 errno = ENOSYS;
2598 retval = &PL_sv_undef;
2599 #endif
2600 XPUSHs (retval);
2601 }
2602
2603 ssize_t
splice(aio_rfd rfh,SV * off_in,aio_wfd wfh,SV * off_out,size_t length,unsigned int flags)2604 splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2605 CODE:
2606 {
2607 #if HAVE_LINUX_SPLICE
2608 loff_t off_in_, off_out_;
2609 RETVAL = splice (
2610 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2611 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2612 length, flags
2613 );
2614 #else
2615 RETVAL = EIO_ENOSYS ();
2616 #endif
2617 }
2618 OUTPUT:
2619 RETVAL
2620
2621 ssize_t
2622 tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2623 CODE:
2624 #if HAVE_LINUX_SPLICE
2625 RETVAL = tee (rfh, wfh, length, flags);
2626 #else
2627 RETVAL = EIO_ENOSYS ();
2628 #endif
2629 OUTPUT:
2630 RETVAL
2631
2632 int
2633 pipesize (aio_rfd rfh, int new_size = -1)
2634 PROTOTYPE: $;$
2635 CODE:
2636 #if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2637 if (new_size >= 0)
2638 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2639 else
2640 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2641 #else
2642 errno = ENOSYS;
2643 RETVAL = -1;
2644 #endif
2645 OUTPUT:
2646 RETVAL
2647
2648 void
2649 pipe2 (int flags = 0)
2650 PROTOTYPE: ;$
2651 PPCODE:
2652 {
2653 int fd[2];
2654 int res;
2655
2656 if (flags)
2657 #if HAVE_PIPE2
2658 res = pipe2 (fd, flags);
2659 #else
2660 res = (errno = ENOSYS, -1);
2661 #endif
2662 else
2663 res = pipe (fd);
2664
2665 if (!res)
2666 {
2667 EXTEND (SP, 2);
2668 PUSHs (newmortalFH (fd[0], O_RDONLY));
2669 PUSHs (newmortalFH (fd[1], O_WRONLY));
2670 }
2671 }
2672
2673 void
2674 pidfd_open (int pid, unsigned int flags = 0)
2675 PPCODE:
2676 {
2677 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2678 int fd = syscall (SYS_pidfd_open, pid, flags);
2679 XPUSHs (newmortalFH (fd, O_RDWR));
2680 }
2681
2682 int
2683 pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
2684 PPCODE:
2685 {
2686 int res;
2687 #if HAVE_SIGINFO_T
2688 siginfo_t si = { 0 };
2689
2690 if (SvOK (siginfo))
2691 {
2692 HV *hv;
2693 SV **svp;
2694
2695 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2696 croak ("siginfo argument must be a hashref with 'code', 'pid', 'uid' and 'value_int' or 'value_ptr' members, caught");
2697
2698 hv = (HV *)SvRV (siginfo);
2699
2700 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2701 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2702 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2703 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2704 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2705 }
2706
2707 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2708 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2709 #else
2710 res = (errno = ENOSYS, -1);
2711 #endif
2712
2713 XPUSHs (sv_2mortal (newSViv (res)));
2714 }
2715
2716 void
2717 pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2718 PPCODE:
2719 {
2720 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2721 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2722 XPUSHs (newmortalFH (fd, O_RDWR));
2723 }
2724
2725 void
2726 eventfd (unsigned int initval = 0, int flags = 0)
2727 PPCODE:
2728 {
2729 int fd;
2730 #if HAVE_EVENTFD
2731 fd = eventfd (initval, flags);
2732 #else
2733 fd = (errno = ENOSYS, -1);
2734 #endif
2735
2736 XPUSHs (newmortalFH (fd, O_RDWR));
2737 }
2738
2739 void
2740 timerfd_create (int clockid, int flags = 0)
2741 PPCODE:
2742 {
2743 int fd;
2744 #if HAVE_TIMERFD
2745 fd = timerfd_create (clockid, flags);
2746 #else
2747 fd = (errno = ENOSYS, -1);
2748 #endif
2749
2750 XPUSHs (newmortalFH (fd, O_RDWR));
2751 }
2752
2753 void
timerfd_settime(SV * fh,int flags,NV interval,NV value)2754 timerfd_settime (SV *fh, int flags, NV interval, NV value)
2755 PPCODE:
2756 {
2757 int fd = s_fileno_croak (fh, 0);
2758 #if HAVE_TIMERFD
2759 int res;
2760 struct itimerspec its, ots;
2761
2762 ts_set (&its.it_interval, interval);
2763 ts_set (&its.it_value , value);
2764 res = timerfd_settime (fd, flags, &its, &ots);
2765
2766 if (!res)
2767 {
2768 EXTEND (SP, 2);
2769 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2770 PUSHs (newSVnv (ts_get (&ots.it_value)));
2771 }
2772 #else
2773 errno = ENOSYS;
2774 #endif
2775 }
2776
2777 void
timerfd_gettime(SV * fh)2778 timerfd_gettime (SV *fh)
2779 PPCODE:
2780 {
2781 int fd = s_fileno_croak (fh, 0);
2782 #if HAVE_TIMERFD
2783 int res;
2784 struct itimerspec ots;
2785 res = timerfd_gettime (fd, &ots);
2786
2787 if (!res)
2788 {
2789 EXTEND (SP, 2);
2790 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2791 PUSHs (newSVnv (ts_get (&ots.it_value)));
2792 }
2793 #else
2794 errno = ENOSYS;
2795 #endif
2796 }
2797
2798 void
2799 memfd_create (SV8 *pathname, int flags = 0)
2800 PPCODE:
2801 {
2802 int fd;
2803 #if HAVE_MEMFD_CREATE
2804 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2805 #else
2806 fd = (errno = ENOSYS, -1);
2807 #endif
2808
2809 XPUSHs (newmortalFH (fd, O_RDWR));
2810 }
2811
2812 UV
2813 get_fdlimit ()
2814 CODE:
2815 #if HAVE_RLIMITS
2816 struct rlimit rl;
2817 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2818 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2819 #endif
2820 XSRETURN_UNDEF;
2821 OUTPUT:
2822 RETVAL
2823
2824 void
2825 min_fdlimit (UV limit = 0x7fffffffU)
2826 CODE:
2827 {
2828 #if HAVE_RLIMITS
2829 struct rlimit rl;
2830 rlim_t orig_rlim_max;
2831 UV bit;
2832
2833 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2834 goto fail;
2835
2836 if (rl.rlim_cur == RLIM_INFINITY)
2837 XSRETURN_YES;
2838
2839 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2840
2841 if (rl.rlim_cur < limit)
2842 {
2843 rl.rlim_cur = limit;
2844
2845 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2846 rl.rlim_max = rl.rlim_cur;
2847 }
2848
2849 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2850 XSRETURN_YES;
2851
2852 if (errno == EPERM)
2853 {
2854 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2855 /* our limit overflows a system-wide limit */
2856 /* try an adaptive algorithm, but do not lower the hardlimit */
2857 rl.rlim_max = 0;
2858 for (bit = 0x40000000U; bit; bit >>= 1)
2859 {
2860 rl.rlim_max |= bit;
2861 rl.rlim_cur = rl.rlim_max;
2862
2863 /* never decrease the hard limit */
2864 if (rl.rlim_max < orig_rlim_max)
2865 break;
2866
2867 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2868 rl.rlim_max &= ~bit; /* too high, remove bit again */
2869 }
2870
2871 /* now, raise the soft limit to the max permitted */
2872 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2873 {
2874 rl.rlim_cur = rl.rlim_max;
2875 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2876 errno = EPERM;
2877 }
2878 }
2879 #endif
2880 fail:
2881 XSRETURN_UNDEF;
2882 }
2883
2884 void _on_next_submit (SV *cb)
2885 CODE:
2886 SvREFCNT_dec (on_next_submit);
2887 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2888
2889 PROTOTYPES: DISABLE
2890
2891 MODULE = IO::AIO PACKAGE = IO::AIO::WD
2892
2893 BOOT:
2894 {
2895 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2896 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2897 }
2898
2899 void
DESTROY(SV * self)2900 DESTROY (SV *self)
2901 CODE:
2902 {
2903 aio_wd wd = SvAIO_WD (self);
2904 #if HAVE_AT
2905 {
2906 SV *callback = &PL_sv_undef;
2907 dREQ; /* clobbers next_pri :/ */
2908 next_pri = req->pri; /* restore next_pri */
2909 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2910 req->type = EIO_WD_CLOSE;
2911 req->wd = wd;
2912 REQ_SEND;
2913 }
2914 #else
2915 eio_wd_close_sync (wd);
2916 #endif
2917 }
2918
2919 MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2920
2921 void
2922 cancel (aio_req_ornot req)
2923 CODE:
2924 eio_cancel (req);
2925
2926 void
2927 cb (aio_req_ornot req, SV *callback = NO_INIT)
2928 PPCODE:
2929 {
2930 if (GIMME_V != G_VOID)
2931 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2932
2933 if (items > 1)
2934 {
2935 SV *cb_cv = get_cb (callback);
2936
2937 SvREFCNT_dec (req->callback);
2938 req->callback = SvREFCNT_inc (cb_cv);
2939 }
2940 }
2941
2942 MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2943
2944 void
add(aio_req grp,...)2945 add (aio_req grp, ...)
2946 PPCODE:
2947 {
2948 int i;
2949
2950 if (grp->int1 == 2)
2951 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2952
2953 for (i = 1; i < items; ++i )
2954 {
2955 aio_req req;
2956
2957 if (GIMME_V != G_VOID)
2958 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2959
2960 req = SvAIO_REQ (ST (i));
2961
2962 if (req)
2963 eio_grp_add (grp, req);
2964 }
2965 }
2966
2967 void
2968 cancel_subs (aio_req_ornot req)
2969 CODE:
2970 req_cancel_subs (req);
2971
2972 void
result(aio_req grp,...)2973 result (aio_req grp, ...)
2974 CODE:
2975 {
2976 int i;
2977 AV *av;
2978
2979 grp->errorno = errno;
2980
2981 av = newAV ();
2982 av_extend (av, items - 1);
2983
2984 for (i = 1; i < items; ++i )
2985 av_push (av, newSVsv (ST (i)));
2986
2987 SvREFCNT_dec (grp->sv1);
2988 grp->sv1 = (SV *)av;
2989 }
2990
2991 void
2992 errno (aio_req grp, int errorno = errno)
2993 CODE:
2994 grp->errorno = errorno;
2995
2996 void
2997 limit (aio_req grp, int limit)
2998 CODE:
2999 eio_grp_limit (grp, limit);
3000
3001 void
3002 feed (aio_req grp, SV *callback = &PL_sv_undef)
3003 CODE:
3004 {
3005 SvREFCNT_dec (grp->sv2);
3006 grp->sv2 = newSVsv (callback);
3007 grp->feed = aio_grp_feed;
3008
3009 if (grp->int2 <= 0)
3010 grp->int2 = 2;
3011
3012 eio_grp_limit (grp, grp->int2);
3013 }
3014
3015