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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.200 by root, Thu Sep 29 09:51:24 2011 UTC vs.
Revision 1.219 by root, Fri Jul 27 18:43:25 2012 UTC

… …
17#include <fcntl.h> 17#include <fcntl.h>
18#include <sched.h> 18#include <sched.h>
19 19
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h> 21# include <sys/mman.h>
22#endif
23
24#if __linux__
25# include <linux/fs.h>
26# ifdef FS_IOC_FIEMAP
27# include <linux/types.h>
28# include <linux/fiemap.h>
29# define HAVE_FIEMAP 1
30# endif
22#endif 31#endif
23 32
24/* perl namespace pollution */ 33/* perl namespace pollution */
25#undef VERSION 34#undef VERSION
26 35
… …
62 #undef dup 71 #undef dup
63 #undef dup2 72 #undef dup2
64 #undef abort 73 #undef abort
65 #undef pipe 74 #undef pipe
66 75
76 #define EIO_STRUCT_STAT struct _stati64
77 #define EIO_STRUCT_STATI64
78
67#else 79#else
68 80
69 #include <sys/time.h> 81 #include <sys/time.h>
70 #include <sys/select.h> 82 #include <sys/select.h>
71 #include <unistd.h> 83 #include <unistd.h>
72 #include <utime.h> 84 #include <utime.h>
73 #include <signal.h> 85 #include <signal.h>
74 86
75#endif
76
77#define EIO_STRUCT_STAT Stat_t 87 #define EIO_STRUCT_STAT Stat_t
78 88
79/* use NV for 32 bit perls as it allows larger offsets */
80#if IVSIZE >= 8
81# define VAL64 IV
82# define SvVAL64 SvIV
83# define newSVval64 newSViv
84#else
85# define VAL64 NV
86# define SvVAL64 SvNV
87# define newSVval64 newSVnv
88#endif 89#endif
89 90
90/*****************************************************************************/ 91/*****************************************************************************/
91 92
92#if __GNUC__ >= 3 93#if __GNUC__ >= 3
… …
123static void req_destroy (eio_req *grp); 124static void req_destroy (eio_req *grp);
124#define EIO_DESTROY(req) req_destroy (req) 125#define EIO_DESTROY(req) req_destroy (req)
125 126
126#include "libeio/eio.c" 127#include "libeio/eio.c"
127 128
128/* Linux/others */
129#ifndef O_ASYNC
130# define O_ASYNC 0
131#endif
132#ifndef O_DIRECT
133# define O_DIRECT 0
134#endif
135#ifndef O_NOATIME
136# define O_NOATIME 0
137#endif
138
139/* POSIX */
140#ifndef O_CLOEXEC
141# define O_CLOEXEC 0
142#endif
143#ifndef O_NOFOLLOW
144# define O_NOFOLLOW 0
145#endif
146#ifndef O_NOCTTY
147# define O_NOCTTY 0
148#endif
149#ifndef O_NONBLOCK
150# define O_NONBLOCK 0
151#endif
152#ifndef O_EXEC
153# define O_EXEC 0
154#endif
155#ifndef O_SEARCH
156# define O_SEARCH 0
157#endif
158#ifndef O_DIRECTORY
159# define O_DIRECTORY 0
160#endif
161#ifndef O_DSYNC
162# define O_DSYNC 0
163#endif
164#ifndef O_RSYNC
165# define O_RSYNC 0
166#endif
167#ifndef O_SYNC
168# define O_SYNC 0
169#endif
170#ifndef O_TTY_INIT
171# define O_TTY_INIT 0
172#endif
173
174#ifndef POSIX_FADV_NORMAL
175# define POSIX_FADV_NORMAL 0
176#endif
177#ifndef POSIX_FADV_SEQUENTIAL
178# define POSIX_FADV_SEQUENTIAL 0
179#endif
180#ifndef POSIX_FADV_RANDOM
181# define POSIX_FADV_RANDOM 0
182#endif
183#ifndef POSIX_FADV_NOREUSE
184# define POSIX_FADV_NOREUSE 0
185#endif
186#ifndef POSIX_FADV_WILLNEED
187# define POSIX_FADV_WILLNEED 0
188#endif
189#ifndef POSIX_FADV_DONTNEED
190# define POSIX_FADV_DONTNEED 0
191#endif
192
193#if !HAVE_POSIX_FADVISE 129#if !HAVE_POSIX_FADVISE
194# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */ 130# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
195#endif 131#endif
196 132
197#ifndef POSIX_MADV_NORMAL
198# define POSIX_MADV_NORMAL 0
199#endif
200#ifndef POSIX_MADV_SEQUENTIAL
201# define POSIX_MADV_SEQUENTIAL 0
202#endif
203#ifndef POSIX_MADV_RANDOM
204# define POSIX_MADV_RANDOM 0
205#endif
206#ifndef POSIX_MADV_WILLNEED
207# define POSIX_MADV_WILLNEED 0
208#endif
209#ifndef POSIX_MADV_DONTNEED
210# define POSIX_MADV_DONTNEED 0
211#endif
212
213#if !HAVE_POSIX_MADVISE 133#if !HAVE_POSIX_MADVISE
214# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */ 134# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
215#endif
216
217#ifndef PROT_NONE
218# define PROT_NONE 0
219#endif
220#ifndef PROT_READ
221# define PROT_READ 0
222#endif
223#ifndef PROT_WRITE
224# define PROT_READ 0
225#endif
226#ifndef PROT_EXEC
227# define PROT_EXEC 0
228#endif
229
230#ifndef ST_RDONLY
231# define ST_RDONLY 0
232#endif
233#ifndef ST_NOSUID
234# define ST_NOSUID 0
235#endif
236#ifndef ST_NODEV
237# define ST_NODEV 0
238#endif
239#ifndef ST_NOEXEC
240# define ST_NOEXEC 0
241#endif
242#ifndef ST_SYNCHRONOUS
243# define ST_SYNCHRONOUS 0
244#endif
245#ifndef ST_MANDLOCK
246# define ST_MANDLOCK 0
247#endif
248#ifndef ST_WRITE
249# define ST_WRITE 0
250#endif
251#ifndef ST_APPEND
252# define ST_APPEND 0
253#endif
254#ifndef ST_IMMUTABLE
255# define ST_IMMUTABLE 0
256#endif
257#ifndef ST_NOATIME
258# define ST_NOATIME 0
259#endif
260#ifndef ST_NODIRATIME
261# define ST_NODIRATIME 0
262#endif
263#ifndef ST_RELATIME
264# define ST_RELATIME 0
265#endif
266
267#ifndef S_IFIFO
268# define S_IFIFO 0
269#endif
270#ifndef S_IFCHR
271# define S_IFCHR 0
272#endif
273#ifndef S_IFBLK
274# define S_IFBLK 0
275#endif
276#ifndef S_IFLNK
277# define S_IFLNK 0
278#endif
279#ifndef S_IFREG
280# define S_IFREG 0
281#endif
282#ifndef S_IFDIR
283# define S_IFDIR 0
284#endif
285#ifndef S_IFWHT
286# define S_IFWHT 0
287#endif
288#ifndef S_IFSOCK
289# define S_IFSOCK 0
290#endif 135#endif
291 136
292#ifndef MAP_ANONYMOUS 137#ifndef MAP_ANONYMOUS
293# ifdef MAP_ANON 138# ifdef MAP_ANON
294# define MAP_ANONYMOUS MAP_ANON 139# define MAP_ANONYMOUS MAP_ANON
295# else 140# else
296# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */ 141# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
297# endif 142# endif
298#endif 143#endif
299#ifndef MAP_HUGETLB 144
300# define MAP_HUGETLB 0 145/* defines all sorts of constants to 0 unless they are already defined */
301#endif 146#include "def0.h"
302#ifndef MAP_LOCKED
303# define MAP_LOCKED 0
304#endif
305#ifndef MAP_NORESERVE
306# define MAP_NORESERVE 0
307#endif
308#ifndef MAP_POPULATE
309# define MAP_POPULATE 0
310#endif
311#ifndef MAP_NONBLOCK
312# define MAP_NONBLOCK 0
313#endif
314 147
315#ifndef makedev 148#ifndef makedev
316# define makedev(maj,min) (((maj) << 8) | (min)) 149# define makedev(maj,min) (((maj) << 8) | (min))
317#endif 150#endif
318#ifndef major 151#ifndef major
… …
323#endif 156#endif
324 157
325#ifndef PAGESIZE 158#ifndef PAGESIZE
326# define PAGESIZE sysconf (_SC_PAGESIZE) 159# define PAGESIZE sysconf (_SC_PAGESIZE)
327#endif 160#endif
161
162/*****************************************************************************/
163
164static void
165fiemap (eio_req *req)
166{
167 req->result = -1;
168
169#if HAVE_FIEMAP
170 int count = req->int3;
171
172 /* heuristic: first try with 72 extents if we don't know how many, */
173 /* as most files have (hopefully) fewer than this many extents */
174 /* in fact, most should have <= 2, so the 72 below is probably overkill */
175 if (count < 0)
176 count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
177
178 for (;;)
179 {
180 struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
181 errno = ENOMEM;
182 if (!fiemap)
183 return;
184
185 req->ptr1 = fiemap;
186 req->flags |= EIO_FLAG_PTR1_FREE;
187
188 fiemap->fm_start = req->offs;
189 fiemap->fm_length = req->size;
190 fiemap->fm_flags = req->int2;
191 fiemap->fm_extent_count = count;
192
193 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
194 return;
195
196 if (req->int3 >= 0)
197 break; /* when not autosizing we are done */
198
199 if (fiemap->fm_mapped_extents < count)
200 /* either autosizing succeeded,
201 * or the file had no extents
202 * or we luckily had enough space */
203 break;
204
205 /* some kernels overwrite fm_length, so just reset everything */
206 fiemap->fm_start = req->offs;
207 fiemap->fm_length = req->size;
208 fiemap->fm_flags = req->int2;
209 fiemap->fm_extent_count = 0;
210
211 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
212 return;
213
214 /* to work around a kernel bug, we allocate one more */
215 count = fiemap->fm_mapped_extents + 1;
216
217 free (fiemap);
218 }
219
220 req->result = 0;
221
222#else
223 errno = ENOSYS;
224#endif
225}
226
227/*****************************************************************************/
328 228
329enum { 229enum {
330 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ 230 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
331}; 231};
332 232
… …
341static s_epipe respipe; 241static s_epipe respipe;
342 242
343static void req_destroy (aio_req req); 243static void req_destroy (aio_req req);
344static void req_cancel (aio_req req); 244static void req_cancel (aio_req req);
345 245
346static void want_poll (void) 246static void
247want_poll (void)
347{ 248{
348 /* write a dummy byte to the pipe so fh becomes ready */ 249 /* write a dummy byte to the pipe so fh becomes ready */
349 s_epipe_signal (&respipe); 250 s_epipe_signal (&respipe);
350} 251}
351 252
352static void done_poll (void) 253static void
254done_poll (void)
353{ 255{
354 /* read any signals sent by the worker threads */ 256 /* read any signals sent by the worker threads */
355 s_epipe_drain (&respipe); 257 s_epipe_drain (&respipe);
356} 258}
357 259
358/* must be called at most once */ 260/* must be called at most once */
261static SV *
359static SV *req_sv (aio_req req, HV *stash) 262req_sv (aio_req req, HV *stash)
360{ 263{
361 if (!req->self) 264 if (!req->self)
362 { 265 {
363 req->self = (SV *)newHV (); 266 req->self = (SV *)newHV ();
364 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 267 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
… …
368} 271}
369 272
370static SV * 273static SV *
371newSVaio_wd (aio_wd wd) 274newSVaio_wd (aio_wd wd)
372{ 275{
373 return sv_bless (newRV_noinc (newSViv ((long)wd)), aio_wd_stash); 276 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
374} 277}
375 278
376static aio_req SvAIO_REQ (SV *sv) 279static aio_req
280SvAIO_REQ (SV *sv)
377{ 281{
378 MAGIC *mg; 282 MAGIC *mg;
379 283
380 if (!SvROK (sv) 284 if (!SvROK (sv)
285 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
381 || (SvSTASH (SvRV (sv)) != aio_grp_stash 286 || (SvSTASH (SvRV (sv)) != aio_grp_stash
382 && SvSTASH (SvRV (sv)) != aio_req_stash 287 && SvSTASH (SvRV (sv)) != aio_req_stash
383 && !sv_derived_from (sv, "IO::AIO::REQ"))) 288 && !sv_derived_from (sv, "IO::AIO::REQ")))
384 croak ("object of class IO::AIO::REQ expected"); 289 croak ("object of class IO::AIO::REQ expected");
385 290
386 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 291 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
387 292
388 return mg ? (aio_req)mg->mg_ptr : 0; 293 return mg ? (aio_req)mg->mg_ptr : 0;
389} 294}
390 295
391static aio_wd SvAIO_WD (SV *sv) 296static aio_wd
297SvAIO_WD (SV *sv)
392{ 298{
393 if (!SvROK (sv) 299 if (!SvROK (sv)
300 || SvTYPE (SvRV (sv)) != SVt_PVMG
394 || SvSTASH (SvRV (sv)) != aio_wd_stash 301 || SvSTASH (SvRV (sv)) != aio_wd_stash)
395 || SvTYPE (SvRV (sv)) != SVt_PVMG)
396 croak ("IO::AIO: expected a working directory object as returned by aio_wd"); 302 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
397 303
398 return (aio_wd)(long)SvIVX (SvRV (sv)); 304 return (aio_wd)(long)SvIVX (SvRV (sv));
399} 305}
400 306
307static void
401static void aio_grp_feed (aio_req grp) 308aio_grp_feed (aio_req grp)
402{ 309{
403 if (grp->sv2 && SvOK (grp->sv2)) 310 if (grp->sv2 && SvOK (grp->sv2))
404 { 311 {
405 dSP; 312 dSP;
406 313
… …
414 FREETMPS; 321 FREETMPS;
415 LEAVE; 322 LEAVE;
416 } 323 }
417} 324}
418 325
326static void
419static void req_submit (eio_req *req) 327req_submit (eio_req *req)
420{ 328{
421 eio_submit (req); 329 eio_submit (req);
422 330
423 if (expect_false (on_next_submit)) 331 if (expect_false (on_next_submit))
424 { 332 {
… …
431 PUTBACK; 339 PUTBACK;
432 call_sv (cb, G_DISCARD | G_EVAL); 340 call_sv (cb, G_DISCARD | G_EVAL);
433 } 341 }
434} 342}
435 343
344static int
436static int req_invoke (eio_req *req) 345req_invoke (eio_req *req)
437{ 346{
438 if (req->flags & FLAG_SV2_RO_OFF) 347 if (req->flags & FLAG_SV2_RO_OFF)
439 SvREADONLY_off (req->sv2); 348 SvREADONLY_off (req->sv2);
440 349
441 if (!EIO_CANCELLED (req) && req->callback) 350 if (!EIO_CANCELLED (req) && req->callback)
… …
463 } 372 }
464 373
465 switch (req->type) 374 switch (req->type)
466 { 375 {
467 case EIO_WD_OPEN: 376 case EIO_WD_OPEN:
468 PUSHs (sv_2mortal (newSVaio_wd (req->wd))); 377 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
469 break; 378 break;
470 379
471 case EIO_READDIR: 380 case EIO_READDIR:
472 { 381 {
473 SV *rv = &PL_sv_undef; 382 SV *rv = &PL_sv_undef;
… …
626 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 535 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
627 536
628 PUSHs (sv_result); 537 PUSHs (sv_result);
629 break; 538 break;
630 539
540 case EIO_SEEK:
541 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
542 break;
543
631 case EIO_READ: 544 case EIO_READ:
632 { 545 {
633 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 546 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
634 *SvEND (req->sv2) = 0; 547 *SvEND (req->sv2) = 0;
635 SvPOK_only (req->sv2); 548 SvPOK_only (req->sv2);
636 SvSETMAGIC (req->sv2); 549 SvSETMAGIC (req->sv2);
637 PUSHs (sv_result); 550 PUSHs (sv_result);
638 } 551 }
639 break; 552 break;
640 553
554 case EIO_CUSTOM:
555 if (req->feed == fiemap)
556 {
557#if HAVE_FIEMAP
558 if (!req->result)
559 {
560 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
561
562 if (fiemap->fm_extent_count)
563 {
564 AV *av = newAV ();
565 int i;
566
567 while (fiemap->fm_mapped_extents)
568 {
569 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
570 AV *ext_av = newAV ();
571
572 av_store (ext_av, 3, newSVuv (extent->fe_flags));
573 av_store (ext_av, 2, newSVval64 (extent->fe_length));
574 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
575 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
576
577 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
578 }
579
580 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
581 }
582 else
583 {
584 SvIV_set (sv_result, fiemap->fm_mapped_extents);
585 PUSHs (sv_result);
586 }
587 }
588#endif
589 }
590 else
591 PUSHs (sv_result);
592 break;
593
641 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */ 594 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
642 if (req->result > 0) 595 if (req->result > 0)
643 SvIV_set (sv_result, 0); 596 SvIV_set (sv_result, 0);
644 /* FALLTHROUGH */ 597 /* FALLTHROUGH */
645 598
… …
666 } 619 }
667 620
668 return !!SvTRUE (ERRSV); 621 return !!SvTRUE (ERRSV);
669} 622}
670 623
624static void
671static void req_destroy (aio_req req) 625req_destroy (aio_req req)
672{ 626{
673 if (req->self) 627 if (req->self)
674 { 628 {
675 sv_unmagic (req->self, PERL_MAGIC_ext); 629 sv_unmagic (req->self, PERL_MAGIC_ext);
676 SvREFCNT_dec (req->self); 630 SvREFCNT_dec (req->self);
… …
680 SvREFCNT_dec (req->sv2); 634 SvREFCNT_dec (req->sv2);
681 SvREFCNT_dec (req->sv3); 635 SvREFCNT_dec (req->sv3);
682 SvREFCNT_dec (req->sv4); 636 SvREFCNT_dec (req->sv4);
683 SvREFCNT_dec (req->callback); 637 SvREFCNT_dec (req->callback);
684 638
685 Safefree (req); 639 free (req);
686} 640}
687 641
642static void
688static void req_cancel_subs (aio_req grp) 643req_cancel_subs (aio_req grp)
689{ 644{
690 if (grp->type != EIO_GROUP) 645 if (grp->type != EIO_GROUP)
691 return; 646 return;
692 647
693 SvREFCNT_dec (grp->sv2); 648 SvREFCNT_dec (grp->sv2);
694 grp->sv2 = 0; 649 grp->sv2 = 0;
695 650
696 eio_grp_cancel (grp); 651 eio_grp_cancel (grp);
697} 652}
698 653
654static void ecb_cold
699static void create_respipe (void) 655create_respipe (void)
700{ 656{
701 if (s_epipe_renew (&respipe)) 657 if (s_epipe_renew (&respipe))
702 croak ("IO::AIO: unable to initialize result pipe"); 658 croak ("IO::AIO: unable to initialize result pipe");
703} 659}
704 660
705static void poll_wait (void) 661static void
662poll_wait (void)
706{ 663{
707 while (eio_nreqs ()) 664 while (eio_nreqs ())
708 { 665 {
709 int size; 666 int size;
710 667
… …
719 676
720 s_epipe_wait (&respipe); 677 s_epipe_wait (&respipe);
721 } 678 }
722} 679}
723 680
724static int poll_cb (void) 681static int
682poll_cb (void)
725{ 683{
726 for (;;) 684 for (;;)
727 { 685 {
728 int res = eio_poll (); 686 int res = eio_poll ();
729 687
… …
747} 705}
748 706
749/*****************************************************************************/ 707/*****************************************************************************/
750 708
751#if !_POSIX_MAPPED_FILES 709#if !_POSIX_MAPPED_FILES
752# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1) 710# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
753# define munmap(addr,length) (errno = ENOSYS, -1) 711# define munmap(addr,length) EIO_ENOSYS ()
754#endif 712#endif
755 713
756#if !_POSIX_MEMORY_PROTECTION 714#if !_POSIX_MEMORY_PROTECTION
757# define mprotect(addr,len,prot) (errno = ENOSYS, -1) 715# define mprotect(addr,len,prot) EIO_ENOSYS ()
758# define PROT_NONE 0 716# define PROT_NONE 0
759# define PROT_WRITE 0 717# define PROT_WRITE 0
760# define MAP_PRIVATE 0 718# define MAP_PRIVATE 0
761# define MAP_SHARED 0 719# define MAP_SHARED 0
762# define MAP_FIXED 0 720# define MAP_FIXED 0
763#endif 721#endif
764 722
765#define MMAP_MAGIC PERL_MAGIC_ext 723#define MMAP_MAGIC PERL_MAGIC_ext
766 724
725static int ecb_cold
767static int mmap_free (pTHX_ SV *sv, MAGIC *mg) 726mmap_free (pTHX_ SV *sv, MAGIC *mg)
768{ 727{
769 int old_errno = errno; 728 int old_errno = errno;
770 munmap (mg->mg_ptr, (size_t)mg->mg_obj); 729 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
771 errno = old_errno; 730 errno = old_errno;
772 731
… …
788 0, 0, 0, 0, mmap_free 747 0, 0, 0, 0, mmap_free
789}; 748};
790 749
791/*****************************************************************************/ 750/*****************************************************************************/
792 751
752static SV *
793static SV * get_cb (SV *cb_sv) 753get_cb (SV *cb_sv)
794{ 754{
795 SvGETMAGIC (cb_sv); 755 SvGETMAGIC (cb_sv);
796 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0; 756 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
797} 757}
798 758
759static aio_req ecb_noinline
760dreq (SV *callback)
761{
762 SV *cb_cv;
763 aio_req req;
764 int req_pri = next_pri;
765 next_pri = EIO_PRI_DEFAULT;
766
767 cb_cv = get_cb (callback);
768
769 req = calloc (sizeof (*req), 1);
770 if (!req)
771 croak ("out of memory during eio_req allocation");
772
773 req->callback = SvREFCNT_inc (cb_cv);
774 req->pri = req_pri;
775
776 return req;
777}
778
799#define dREQ \ 779#define dREQ \
800 SV *cb_cv; \ 780 aio_req req = dreq (callback); \
801 aio_req req; \
802 int req_pri = next_pri; \
803 next_pri = EIO_PRI_DEFAULT; \
804 \
805 cb_cv = get_cb (callback); \
806 \
807 Newz (0, req, 1, eio_req); \
808 if (!req) \
809 croak ("out of memory during eio_req allocation"); \
810 \
811 req->callback = SvREFCNT_inc (cb_cv); \
812 req->pri = req_pri
813 781
814#define REQ_SEND \ 782#define REQ_SEND \
815 PUTBACK; \ 783 PUTBACK; \
816 req_submit (req); \ 784 req_submit (req); \
817 SPAGAIN; \ 785 SPAGAIN; \
818 \ 786 \
819 if (GIMME_V != G_VOID) \ 787 if (GIMME_V != G_VOID) \
820 XPUSHs (req_sv (req, aio_req_stash)); 788 XPUSHs (req_sv (req, aio_req_stash));
821 789
822static void 790ecb_inline void
823req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr) 791req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
824{ 792{
825 if (expect_false (SvROK (path))) 793 if (expect_false (SvROK (path)))
826 { 794 {
827 AV *av = (AV *)SvRV (path); 795 SV *rv = SvRV (path);
828 SV *wdob; 796 SV *wdob;
829 797
830 if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1) 798 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
831 croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");
832
833 path = AvARRAY (av)[1];
834 wdob = AvARRAY (av)[0];
835
836 if (SvOK (wdob))
837 { 799 {
800 path = AvARRAY (rv)[1];
801 wdob = AvARRAY (rv)[0];
802
803 if (SvOK (wdob))
804 {
838 *wd = SvAIO_WD (wdob); 805 *wd = SvAIO_WD (wdob);
839 *wdsv = SvREFCNT_inc_NN (SvRV (wdob)); 806 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
807 }
808 else
809 *wd = EIO_INVALID_WD;
810 }
811 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
812 {
813 *wd = (aio_wd)(long)SvIVX (rv);
814 *wdsv = SvREFCNT_inc_NN (rv);
815 *ptr = ".";
816 return; /* path set to "." */
840 } 817 }
841 else 818 else
842 *wd = EIO_INVALID_WD; 819 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
843 } 820 }
844 821
845 *pathsv = newSVsv (path); 822 *pathsv = newSVsv (path);
846 *ptr = SvPVbyte_nolen (*pathsv); 823 *ptr = SvPVbyte_nolen (*pathsv);
847} 824}
848 825
849static void 826static void ecb_noinline
850req_set_path1 (aio_req req, SV *path) 827req_set_path1 (aio_req req, SV *path)
851{ 828{
852 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1); 829 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
853} 830}
854 831
855static void 832static void ecb_noinline
856req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path) 833req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
857{ 834{
858 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path; 835 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
859 836
860 switch (SvTYPE (rv)) 837 switch (SvTYPE (rv))
… …
870 default: 847 default:
871 req->type = type_path; 848 req->type = type_path;
872 req_set_path1 (req, fh_or_path); 849 req_set_path1 (req, fh_or_path);
873 break; 850 break;
874 } 851 }
875
876} 852}
853
854XS(boot_IO__AIO) ecb_cold;
877 855
878MODULE = IO::AIO PACKAGE = IO::AIO 856MODULE = IO::AIO PACKAGE = IO::AIO
879 857
880PROTOTYPES: ENABLE 858PROTOTYPES: ENABLE
881 859
… …
886 IV iv; 864 IV iv;
887 } *civ, const_iv[] = { 865 } *civ, const_iv[] = {
888# define const_niv(name, value) { # name, (IV) value }, 866# define const_niv(name, value) { # name, (IV) value },
889# define const_iv(name) { # name, (IV) name }, 867# define const_iv(name) { # name, (IV) name },
890# define const_eio(name) { # name, (IV) EIO_ ## name }, 868# define const_eio(name) { # name, (IV) EIO_ ## name },
869
870 /* you have to re-run ./gendef0 after adding/Removing any constants here */
871
872 const_iv (ENOSYS)
891 const_iv (EXDEV) 873 const_iv (EXDEV)
892 const_iv (ENOSYS) 874 const_iv (EBADR)
875
893 const_iv (O_RDONLY) 876 const_iv (O_RDONLY)
894 const_iv (O_WRONLY) 877 const_iv (O_WRONLY)
895 const_iv (O_RDWR) 878 const_iv (O_RDWR)
896 const_iv (O_CREAT) 879 const_iv (O_CREAT)
897 const_iv (O_TRUNC) 880 const_iv (O_TRUNC)
… …
965 const_iv (MAP_LOCKED) 948 const_iv (MAP_LOCKED)
966 const_iv (MAP_NORESERVE) 949 const_iv (MAP_NORESERVE)
967 const_iv (MAP_POPULATE) 950 const_iv (MAP_POPULATE)
968 const_iv (MAP_NONBLOCK) 951 const_iv (MAP_NONBLOCK)
969 952
953 const_iv (FIEMAP_FLAG_SYNC)
954 const_iv (FIEMAP_FLAG_XATTR)
955 const_iv (FIEMAP_FLAGS_COMPAT)
956 const_iv (FIEMAP_EXTENT_LAST)
957 const_iv (FIEMAP_EXTENT_UNKNOWN)
958 const_iv (FIEMAP_EXTENT_DELALLOC)
959 const_iv (FIEMAP_EXTENT_ENCODED)
960 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
961 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
962 const_iv (FIEMAP_EXTENT_DATA_INLINE)
963 const_iv (FIEMAP_EXTENT_DATA_TAIL)
964 const_iv (FIEMAP_EXTENT_UNWRITTEN)
965 const_iv (FIEMAP_EXTENT_MERGED)
966 const_iv (FIEMAP_EXTENT_SHARED)
967
968 const_iv (SPLICE_F_MOVE)
969 const_iv (SPLICE_F_NONBLOCK)
970 const_iv (SPLICE_F_MORE)
971 const_iv (SPLICE_F_GIFT)
972
973 const_iv (SEEK_DATA)
974 const_iv (SEEK_HOLE)
975
976 /* libeio constants */
977 const_eio (SEEK_SET)
978 const_eio (SEEK_CUR)
979 const_eio (SEEK_END)
980
970 const_eio (MCL_FUTURE) 981 const_eio (MCL_FUTURE)
971 const_eio (MCL_CURRENT) 982 const_eio (MCL_CURRENT)
972 983
973 const_eio (MS_ASYNC) 984 const_eio (MS_ASYNC)
974 const_eio (MS_INVALIDATE) 985 const_eio (MS_INVALIDATE)
… …
979 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE) 990 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
980 const_eio (SYNC_FILE_RANGE_WRITE) 991 const_eio (SYNC_FILE_RANGE_WRITE)
981 const_eio (SYNC_FILE_RANGE_WAIT_AFTER) 992 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
982 993
983 const_eio (FALLOC_FL_KEEP_SIZE) 994 const_eio (FALLOC_FL_KEEP_SIZE)
995 const_eio (FALLOC_FL_PUNCH_HOLE)
984 996
985 const_eio (READDIR_DENTS) 997 const_eio (READDIR_DENTS)
986 const_eio (READDIR_DIRS_FIRST) 998 const_eio (READDIR_DIRS_FIRST)
987 const_eio (READDIR_STAT_ORDER) 999 const_eio (READDIR_STAT_ORDER)
988 const_eio (READDIR_FOUND_UNKNOWN) 1000 const_eio (READDIR_FOUND_UNKNOWN)
… …
1096 1108
1097 req->type = ix; 1109 req->type = ix;
1098 req->sv1 = newSVsv (fh); 1110 req->sv1 = newSVsv (fh);
1099 req->int1 = fd; 1111 req->int1 = fd;
1100 1112
1101 REQ_SEND (req); 1113 REQ_SEND;
1102} 1114}
1103 1115
1104void 1116void
1105aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 1117aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1106 PPCODE: 1118 PPCODE:
… …
1113 req->int1 = fd; 1125 req->int1 = fd;
1114 req->offs = offset; 1126 req->offs = offset;
1115 req->size = nbytes; 1127 req->size = nbytes;
1116 req->int2 = flags; 1128 req->int2 = flags;
1117 1129
1118 REQ_SEND (req); 1130 REQ_SEND;
1119} 1131}
1120 1132
1121void 1133void
1122aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef) 1134aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1123 PPCODE: 1135 PPCODE:
… …
1130 req->int1 = fd; 1142 req->int1 = fd;
1131 req->int2 = mode; 1143 req->int2 = mode;
1132 req->offs = offset; 1144 req->offs = offset;
1133 req->size = len; 1145 req->size = len;
1134 1146
1135 REQ_SEND (req); 1147 REQ_SEND;
1136} 1148}
1137 1149
1138void 1150void
1139aio_close (SV *fh, SV *callback=&PL_sv_undef) 1151aio_close (SV *fh, SV *callback=&PL_sv_undef)
1140 PPCODE: 1152 PPCODE:
… …
1164 req->type = EIO_DUP2; 1176 req->type = EIO_DUP2;
1165 req->int1 = close_fd; 1177 req->int1 = close_fd;
1166 req->sv2 = newSVsv (fh); 1178 req->sv2 = newSVsv (fh);
1167 req->int2 = fd; 1179 req->int2 = fd;
1168 1180
1169 REQ_SEND (req); 1181 REQ_SEND;
1182}
1183
1184void
1185aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
1186 PPCODE:
1187{
1188 int fd = s_fileno_croak (fh, 0);
1189 dREQ;
1190
1191 req->type = EIO_SEEK;
1192 req->sv1 = newSVsv (fh);
1193 req->int1 = fd;
1194 req->offs = SvVAL64 (offset);
1195 req->int2 = whence;
1196
1197 REQ_SEND;
1170} 1198}
1171 1199
1172void 1200void
1173aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1201aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1174 ALIAS: 1202 ALIAS:
… …
1195 } 1223 }
1196 else 1224 else
1197 { 1225 {
1198 /* read: check type and grow scalar as necessary */ 1226 /* read: check type and grow scalar as necessary */
1199 SvUPGRADE (data, SVt_PV); 1227 SvUPGRADE (data, SVt_PV);
1228 if (SvLEN (data) >= SvCUR (data))
1200 svptr = SvGROW (data, len + dataoffset + 1); 1229 svptr = SvGROW (data, len + dataoffset + 1);
1230 else if (SvCUR (data) < len + dataoffset)
1231 croak ("length + dataoffset outside of scalar, and cannot grow");
1201 } 1232 }
1202 1233
1203 { 1234 {
1204 dREQ; 1235 dREQ;
1205 1236
… …
1280 aio_statvfs = EIO_STATVFS 1311 aio_statvfs = EIO_STATVFS
1281 PPCODE: 1312 PPCODE:
1282{ 1313{
1283 dREQ; 1314 dREQ;
1284 1315
1285 req->sv1 = newSVsv (fh_or_path);
1286 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path); 1316 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1317
1287 REQ_SEND; 1318 REQ_SEND;
1288} 1319}
1289 1320
1290UV 1321UV
1291major (UV dev) 1322major (UV dev)
… …
1405 aio_link = EIO_LINK 1436 aio_link = EIO_LINK
1406 aio_symlink = EIO_SYMLINK 1437 aio_symlink = EIO_SYMLINK
1407 aio_rename = EIO_RENAME 1438 aio_rename = EIO_RENAME
1408 PPCODE: 1439 PPCODE:
1409{ 1440{
1441 eio_wd wd2 = 0;
1410 dREQ; 1442 dREQ;
1411 eio_wd wd2 = 0;
1412 1443
1413 req->type = ix; 1444 req->type = ix;
1414 req_set_path1 (req, oldpath); 1445 req_set_path1 (req, oldpath);
1415 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2); 1446 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1416 req->int3 = (long)wd2; 1447 req->int3 = (long)wd2;
… …
1502 1533
1503 req->type = EIO_MLOCKALL; 1534 req->type = EIO_MLOCKALL;
1504 req->int1 = flags; 1535 req->int1 = flags;
1505 1536
1506 REQ_SEND; 1537 REQ_SEND;
1538}
1539
1540void
1541aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1542 PPCODE:
1543{
1544 int fd = s_fileno_croak (fh, 0);
1545 dREQ;
1546
1547 req->type = EIO_CUSTOM;
1548 req->sv1 = newSVsv (fh);
1549 req->int1 = fd;
1550
1551 req->feed = fiemap;
1552#if HAVE_FIEMAP
1553 /* keep our fingers crossed that the next two types are 64 bit */
1554 req->offs = start;
1555 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1556 req->int2 = flags;
1557 req->int3 = SvOK (count) ? SvIV (count) : -1;
1558#endif
1559
1560 REQ_SEND;
1507} 1561}
1508 1562
1509void 1563void
1510aio_busy (double delay, SV *callback=&PL_sv_undef) 1564aio_busy (double delay, SV *callback=&PL_sv_undef)
1511 PPCODE: 1565 PPCODE:
… …
1643 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); 1697 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1644 OUTPUT: 1698 OUTPUT:
1645 RETVAL 1699 RETVAL
1646 1700
1647void 1701void
1648mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0) 1702mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1649 PPCODE: 1703 PPCODE:
1650 sv_unmagic (scalar, MMAP_MAGIC); 1704 sv_unmagic (scalar, MMAP_MAGIC);
1651{ 1705{
1652 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; 1706 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1653 void *addr = (void *)mmap (0, length, prot, flags, fd, offset); 1707 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
… …
1686 ALIAS: 1740 ALIAS:
1687 mprotect = 1 1741 mprotect = 1
1688 CODE: 1742 CODE:
1689{ 1743{
1690 STRLEN svlen; 1744 STRLEN svlen;
1691 void *addr = SvPVbyte (scalar, svlen); 1745 void *addr = SvPVbyte (scalar, svlen);
1692 size_t len = SvUV (length); 1746 size_t len = SvUV (length);
1693 1747
1694 if (offset < 0) 1748 if (offset < 0)
1695 offset += svlen; 1749 offset += svlen;
1696 1750
… …
1732 addr = (void *)(((intptr_t)addr) + offset); 1786 addr = (void *)(((intptr_t)addr) + offset);
1733 eio_page_align (&addr, &len); 1787 eio_page_align (&addr, &len);
1734#if _POSIX_MEMLOCK_RANGE 1788#if _POSIX_MEMLOCK_RANGE
1735 RETVAL = munlock (addr, len); 1789 RETVAL = munlock (addr, len);
1736#else 1790#else
1737 RETVAL = ((errno = ENOSYS), -1); 1791 RETVAL = EIO_ENOSYS ();
1738#endif 1792#endif
1739} 1793}
1740 OUTPUT: 1794 OUTPUT:
1741 RETVAL 1795 RETVAL
1742 1796
… …
1744munlockall () 1798munlockall ()
1745 CODE: 1799 CODE:
1746#if _POSIX_MEMLOCK 1800#if _POSIX_MEMLOCK
1747 munlockall (); 1801 munlockall ();
1748#else 1802#else
1749 RETVAL = -1; 1803 RETVAL = EIO_ENOSYS ();
1750 errno = ENOSYS;
1751#endif 1804#endif
1752 OUTPUT: 1805 OUTPUT:
1806 RETVAL
1807
1808int
1809splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1810 CODE:
1811{
1812#if HAVE_LINUX_SPLICE
1813 loff_t off_in_, off_out_;
1814 RETVAL = splice (
1815 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1816 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1817 length, flags
1818 );
1819#else
1820 RETVAL = EIO_ENOSYS ();
1821#endif
1822}
1823 OUTPUT:
1824 RETVAL
1825
1826int
1827tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1828 CODE:
1829#if HAVE_LINUX_SPLICE
1830 RETVAL = tee (rfh, wfh, length, flags);
1831#else
1832 RETVAL = EIO_ENOSYS ();
1833#endif
1834 OUTPUT:
1753 RETVAL 1835 RETVAL
1754 1836
1755void _on_next_submit (SV *cb) 1837void _on_next_submit (SV *cb)
1756 CODE: 1838 CODE:
1757 SvREFCNT_dec (on_next_submit); 1839 SvREFCNT_dec (on_next_submit);
… …
1771DESTROY (SV *self) 1853DESTROY (SV *self)
1772 CODE: 1854 CODE:
1773{ 1855{
1774 aio_wd wd = SvAIO_WD (self); 1856 aio_wd wd = SvAIO_WD (self);
1775#if HAVE_AT 1857#if HAVE_AT
1858 {
1776 SV *callback = &PL_sv_undef; 1859 SV *callback = &PL_sv_undef;
1777 dREQ; /* clobbers next_pri :/ */ 1860 dREQ; /* clobbers next_pri :/ */
1861 next_pri = req->pri; /* restore next_pri */
1862 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1778 req->type = EIO_WD_CLOSE; 1863 req->type = EIO_WD_CLOSE;
1779 req->wd = wd; 1864 req->wd = wd;
1780 REQ_SEND; 1865 REQ_SEND;
1866 }
1781#else 1867#else
1782 eio_wd_close_sync (wd); 1868 eio_wd_close_sync (wd);
1783#endif 1869#endif
1784} 1870}
1785 1871

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