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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.43 by root, Sat Oct 21 23:06:04 2006 UTC vs.
Revision 1.276 by root, Wed Apr 3 03:03:53 2019 UTC

1#define _REENTRANT 1 1#include "libeio/xthread.h"
2
2#include <errno.h> 3#include <errno.h>
3 4
4#include "EXTERN.h" 5#include "EXTERN.h"
5#include "perl.h" 6#include "perl.h"
6#include "XSUB.h" 7#include "XSUB.h"
8#include "perliol.h"
7 9
8#include "autoconf/config.h" 10#if !defined mg_findext
9 11# define mg_findext(sv,type,vtbl) mg_find (sv, type)
10#include <pthread.h> 12#endif
11 13
12#include <stddef.h> 14#include <stddef.h>
15#include <stdlib.h>
13#include <errno.h> 16#include <errno.h>
14#include <sys/types.h> 17#include <sys/types.h>
18#include <sys/socket.h>
15#include <sys/stat.h> 19#include <sys/stat.h>
16#include <limits.h> 20#include <limits.h>
17#include <unistd.h>
18#include <fcntl.h> 21#include <fcntl.h>
19#include <signal.h>
20#include <sched.h> 22#include <sched.h>
21 23
22#if HAVE_SENDFILE 24/* the incompetent fool that created musl keeps __linux__, refuses
23# if __linux 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>
24# include <sys/sendfile.h> 88 #include <sys/select.h>
25# elif __freebsd 89 #include <unistd.h>
90 #include <utime.h>
91 #include <signal.h>
92
93 #define EIO_STRUCT_STAT Stat_t
94
95#endif
96
97/*****************************************************************************/
98
99#if __GNUC__ >= 3
100# define expect(expr,value) __builtin_expect ((expr),(value))
101#else
102# define expect(expr,value) (expr)
103#endif
104
105#define expect_false(expr) expect ((expr) != 0, 0)
106#define expect_true(expr) expect ((expr) != 0, 1)
107
108/*****************************************************************************/
109
110#include "config.h"
111
112#if HAVE_SYS_MKDEV_H
26# include <sys/socket.h> 113# include <sys/mkdev.h>
114#elif HAVE_SYS_SYSMACROS_H
115# include <sys/sysmacros.h>
116#endif
117
118#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
119# include <sys/mman.h>
120#endif
121
122#if HAVE_SYS_UIO_H
27# include <sys/uio.h> 123# include <sys/uio.h>
28# elif __hpux 124#endif
29# include <sys/socket.h> 125
30# elif __solaris /* not yet */ 126#if HAVE_ST_XTIMENSEC
127# define ATIMENSEC PL_statcache.st_atimensec
128# define MTIMENSEC PL_statcache.st_mtimensec
129# define CTIMENSEC PL_statcache.st_ctimensec
130#elif HAVE_ST_XTIMESPEC
131# define ATIMENSEC PL_statcache.st_atim.tv_nsec
132# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
133# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
134#else
135# define ATIMENSEC 0
136# define MTIMENSEC 0
137# define CTIMENSEC 0
138#endif
139
140#if HAVE_ST_BIRTHTIMENSEC
141# define BTIMESEC PL_statcache.st_birthtime
142# define BTIMENSEC PL_statcache.st_birthtimensec
143#elif HAVE_ST_BIRTHTIMESPEC
144# define BTIMESEC PL_statcache.st_birthtim.tv_sec
145# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
146#else
147# define BTIMESEC 0
148# define BTIMENSEC 0
149#endif
150
151#if HAVE_ST_GEN
152# define ST_GEN PL_statcache.st_gen
153#else
154# define ST_GEN 0
155#endif
156
157#include "schmorp.h"
158
159#if HAVE_EVENTFD
31# include <sys/sendfile.h> 160# include <sys/eventfd.h>
161#endif
162
163#if HAVE_TIMERFD
164# include <sys/timerfd.h>
165#endif
166
167#if HAVE_RLIMITS
168 #include <sys/time.h>
169 #include <sys/resource.h>
170#endif
171
172typedef SV SV8; /* byte-sv, used for argument-checking */
173typedef int aio_rfd; /* read file desriptor */
174typedef int aio_wfd; /* write file descriptor */
175
176static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
177
178#define EIO_REQ_MEMBERS \
179 SV *callback; \
180 SV *sv1, *sv2; \
181 SV *sv3, *sv4; \
182 STRLEN stroffset; \
183 SV *self;
184
185#define EIO_NO_WRAPPERS 1
186
187#include "libeio/eio.h"
188
189static int req_invoke (eio_req *req);
190#define EIO_FINISH(req) req_invoke (req)
191static void req_destroy (eio_req *grp);
192#define EIO_DESTROY(req) req_destroy (req)
193
194#include "libeio/eio.c"
195
196#if !HAVE_POSIX_FADVISE
197# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
198#endif
199
200#if !HAVE_POSIX_MADVISE
201# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
202#endif
203
204#ifndef MAP_ANONYMOUS
205# ifdef MAP_ANON
206# define MAP_ANONYMOUS MAP_ANON
32# else 207# else
33# error sendfile support requested but not available 208# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
34# endif 209# endif
35#endif 210#endif
36 211
37/* used for struct dirent, AIX doesn't provide it */ 212#ifndef makedev
38#ifndef NAME_MAX 213# define makedev(maj,min) (((maj) << 8) | (min))
39# define NAME_MAX 4096
40#endif 214#endif
215#ifndef major
216# define major(dev) ((dev) >> 8)
217#endif
218#ifndef minor
219# define minor(dev) ((dev) & 0xff)
220#endif
41 221
42#if __ia64 222/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
43# define STACKSIZE 65536 223#ifdef __sun
224# undef PAGESIZE
225#endif
226
227#if PAGESIZE <= 0
228# define PAGESIZE sysconf (_SC_PAGESIZE)
229#endif
230
231/*****************************************************************************/
232
233#if !_POSIX_MAPPED_FILES
234# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
235# define munmap(addr,length) EIO_ENOSYS ()
236#endif
237
238#if !_POSIX_MEMORY_PROTECTION
239# define mprotect(addr,len,prot) EIO_ENOSYS ()
240#endif
241
242#if !MREMAP_MAYMOVE
243# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
244#endif
245
246#define FOREIGN_MAGIC PERL_MAGIC_ext
247
248static int ecb_cold
249mmap_free (pTHX_ SV *sv, MAGIC *mg)
250{
251 int old_errno = errno;
252 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
253 errno = old_errno;
254
255 mg->mg_obj = 0; /* just in case */
256
257 SvREADONLY_off (sv);
258
259 if (SvPVX (sv) != mg->mg_ptr)
260 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
261
262 SvCUR_set (sv, 0);
263 SvPVX (sv) = 0;
264 SvOK_off (sv);
265
266 return 0;
267}
268
269static MGVTBL mmap_vtbl = {
270 0, 0, 0, 0, mmap_free
271};
272
273static int ecb_cold
274sysfree_free (pTHX_ SV *sv, MAGIC *mg)
275{
276 free (mg->mg_ptr);
277 mg->mg_obj = 0; /* just in case */
278
279 SvREADONLY_off (sv);
280
281 if (SvPVX (sv) != mg->mg_ptr)
282 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
283
284 SvCUR_set (sv, 0);
285 SvPVX (sv) = 0;
286 SvOK_off (sv);
287
288 return 0;
289}
290
291static MGVTBL sysfree_vtbl = {
292 0, 0, 0, 0, sysfree_free
293};
294
295/*****************************************************************************/
296
297/* helper: set scalar to foreign ptr with custom free */
298ecb_noinline
299static void
300sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
301{
302 sv_force_normal (sv);
303
304 /* we store the length in mg_obj, as namlen is I32 :/ */
305 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
306 ->mg_obj = (SV *)length;
307
308 SvUPGRADE (sv, SVt_PV); /* nop... */
309
310 if (SvLEN (sv))
311 Safefree (SvPVX (sv));
312
313 SvPVX (sv) = (char *)addr;
314 SvCUR_set (sv, length);
315 SvLEN_set (sv, 0);
316 SvPOK_only (sv);
317}
318
319static void
320sv_clear_foreign (SV *sv)
321{
322 /* todo: iterate over magic and only free ours, but of course */
323 /* the perl5porters will call that (correct) behaviour buggy */
324 sv_unmagic (sv, FOREIGN_MAGIC);
325}
326
327/*****************************************************************************/
328
329/* defines all sorts of constants to 0 unless they are already defined */
330/* also provides const_iv_ and const_niv_ macros for them */
331#include "def0.h"
332
333/*****************************************************************************/
334
335static void
336fiemap (eio_req *req)
337{
338 req->result = -1;
339
340#if HAVE_FIEMAP
341 /* assume some c99 */
342 struct fiemap *fiemap = 0;
343 size_t end_offset;
344 int count = req->int3;
345
346 req->flags |= EIO_FLAG_PTR1_FREE;
347
348 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
349 /* increase in 3.5kb steps */
350 if (count < 0)
351 count = 8;
352
353 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
354 errno = ENOMEM;
355 if (!fiemap)
356 return;
357
358 req->ptr1 = fiemap;
359
360 fiemap->fm_start = req->offs;
361 fiemap->fm_length = req->size;
362 fiemap->fm_flags = req->int2;
363 fiemap->fm_extent_count = count;
364
365 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
366 return;
367
368 if (req->int3 >= 0 /* not autosizing */
369 || !fiemap->fm_mapped_extents /* no more extents */
370 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
371 goto done;
372
373 /* else we have to loop -
374 * it would be tempting (actually I tried that first) to just query the
375 * number of extents needed, but linux often feels like not returning all
376 * extents, without telling us it left any out. this complicates
377 * this quite a bit.
378 */
379
380 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
381
382 for (;;)
383 {
384 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
385 char scratch[3072];
386 struct fiemap *incmap = (struct fiemap *)scratch;
387
388 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
389 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
390 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
391 incmap->fm_flags = fiemap->fm_flags;
392 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
393
394 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
395 return;
396
397 if (!incmap->fm_mapped_extents)
398 goto done;
399
400 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
401 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
402 errno = ENOMEM;
403 if (!fiemap)
404 return;
405
406 req->ptr1 = fiemap;
407
408 for (count = 0; count < incmap->fm_mapped_extents; ++count)
409 {
410 struct fiemap_extent *e = incmap->fm_extents + count;
411
412 if (e->fe_logical + e->fe_length >= end_offset)
413 goto done;
414
415 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
416
417 if (e->fe_flags & FIEMAP_EXTENT_LAST)
418 goto done;
419
420 }
421 }
422
423done:
424 req->result = 0;
425
44#else 426#else
45# define STACKSIZE 8192 427 errno = ENOSYS;
428#endif
429}
430
431/*****************************************************************************/
432
433static int close_fd; /* dummy fd to close fds via dup2 */
434
435#if HAVE_STATX
436static struct statx stx;
437#define statx_offsetof(member) offsetof (struct statx, member)
438#define eio__statx statx
439#else
440#define statx_offsetof(member) 0
441#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
46#endif 442#endif
47 443
48enum { 444enum {
49 REQ_QUIT, 445 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
50 REQ_OPEN, REQ_CLOSE,
51 REQ_READ, REQ_WRITE, REQ_READAHEAD,
52 REQ_SENDFILE,
53 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
54 REQ_FSYNC, REQ_FDATASYNC,
55 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
56 REQ_READDIR,
57 REQ_LINK, REQ_SYMLINK,
58}; 446};
59 447
60#define AIO_CB_KLASS "IO::AIO::CB"
61
62typedef struct aio_cb
63{
64 struct aio_cb *grp_prev, *grp_next;
65 struct aio_grp *grp;
66
67 struct aio_cb *volatile next;
68
69 SV *self; /* the perl counterpart of this request, if any */
70
71 SV *data, *callback;
72 SV *fh, *fh2;
73 void *dataptr, *data2ptr;
74 Stat_t *statdata;
75 off_t offset;
76 size_t length;
77 ssize_t result;
78
79 int type;
80 int fd, fd2;
81 int errorno;
82 STRLEN dataoffset;
83 mode_t mode; /* open */
84 unsigned char cancelled;
85} aio_cb;
86
87typedef aio_cb *aio_req; 448typedef eio_req *aio_req;
88typedef aio_cb *aio_req_ornot; 449typedef eio_req *aio_req_ornot;
450typedef eio_wd aio_wd;
89 451
90static int started, wanted; 452static SV *on_next_submit;
91static volatile int nreqs; 453static int next_pri = EIO_PRI_DEFAULT;
92static int max_outstanding = 1<<30; 454static int max_outstanding;
93static int respipe [2];
94 455
95static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 456static s_epipe respipe;
96static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
97static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
98 457
99static volatile aio_req reqs, reqe; /* queue start, queue end */ 458static void req_destroy (aio_req req);
100static volatile aio_req ress, rese; /* queue start, queue end */ 459static void req_cancel (aio_req req);
101 460
102typedef struct aio_grp 461static void
462want_poll (void)
103{ 463{
104 struct aio_cb *first, *last; 464 /* write a dummy byte to the pipe so fh becomes ready */
105 SV *callback; 465 s_epipe_signal (&respipe);
106 int busycount;
107} aio_grp;
108
109static void aio_grp_begin (aio_grp *grp)
110{
111 ++grp->busycount;
112} 466}
113 467
114static void aio_grp_end (aio_grp *grp) 468static void
469done_poll (void)
115{ 470{
116 --grp->busycount; 471 /* read any signals sent by the worker threads */
117 472 s_epipe_drain (&respipe);
118 if (grp->busycount)
119 return;
120
121 SvREFCNT_dec (grp->callback);
122 grp->callback = 0;
123}
124
125static aio_grp *aio_grp_new ()
126{
127 aio_grp *grp;
128
129 Newz (0, grp, 1, aio_grp);
130 aio_grp_begin (grp);
131
132 return grp;
133} 473}
134 474
135/* must be called at most once */ 475/* must be called at most once */
136static SV *req_sv (aio_req req) 476ecb_noinline
477static SV *
478req_sv (aio_req req, HV *stash)
137{ 479{
480 if (!req->self)
481 {
138 req->self = (SV *)newHV (); 482 req->self = (SV *)newHV ();
139 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 483 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
484 }
140 485
141 return sv_bless (newRV_noinc (req->self), gv_stashpv (AIO_CB_KLASS, 1)); 486 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
142} 487}
143 488
144static aio_req SvAIO_REQ (SV *sv) 489static SV *
490newSVaio_wd (aio_wd wd)
145{ 491{
146 if (!sv_derived_from (sv, AIO_CB_KLASS) || !SvROK (sv)) 492 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
493}
494
495ecb_noinline
496static aio_req
497SvAIO_REQ (SV *sv)
498{
499 MAGIC *mg;
500
501 if (!SvROK (sv)
502 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
503 || (SvSTASH (SvRV (sv)) != aio_grp_stash
504 && SvSTASH (SvRV (sv)) != aio_req_stash
505 && !sv_derived_from (sv, "IO::AIO::REQ")))
147 croak ("object of class " AIO_CB_KLASS " expected"); 506 croak ("object of class IO::AIO::REQ expected");
148 507
149 MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 508 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
150 509
151 return mg ? (aio_req)mg->mg_ptr : 0; 510 return mg ? (aio_req)mg->mg_ptr : 0;
152} 511}
153 512
154static void req_free (aio_req req) 513static aio_wd
514SvAIO_WD (SV *sv)
515{
516 if (!SvROK (sv)
517 || SvTYPE (SvRV (sv)) != SVt_PVMG
518 || SvSTASH (SvRV (sv)) != aio_wd_stash)
519 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
520
521 return (aio_wd)(long)SvIVX (SvRV (sv));
522}
523
524static SV *
525newmortalFH (int fd, int flags)
526{
527 if (fd < 0)
528 return &PL_sv_undef;
529
530 GV *gv = (GV *)sv_newmortal ();
531 char sym[64];
532 int symlen;
533
534 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
535 gv_init (gv, aio_stash, sym, symlen, 0);
536
537 symlen = snprintf (
538 sym,
539 sizeof (sym),
540 "%s&=%d",
541 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
542 fd
543 );
544
545 return do_open (gv, sym, symlen, 0, 0, 0, 0)
546 ? (SV *)gv : &PL_sv_undef;
547}
548
549static void
550aio_grp_feed (aio_req grp)
551{
552 if (grp->sv2 && SvOK (grp->sv2))
553 {
554 dSP;
555
556 ENTER;
557 SAVETMPS;
558 PUSHMARK (SP);
559 XPUSHs (req_sv (grp, aio_grp_stash));
560 PUTBACK;
561 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
562 SPAGAIN;
563 FREETMPS;
564 LEAVE;
565 }
566}
567
568ecb_noinline
569static void
570req_submit (eio_req *req)
571{
572 eio_submit (req);
573
574 if (expect_false (on_next_submit))
575 {
576 dSP;
577 SV *cb = sv_2mortal (on_next_submit);
578
579 on_next_submit = 0;
580
581 PUSHMARK (SP);
582 PUTBACK;
583 call_sv (cb, G_DISCARD | G_EVAL);
584 }
585}
586
587static int
588req_invoke (eio_req *req)
589{
590 if (req->flags & FLAG_SV2_RO_OFF)
591 SvREADONLY_off (req->sv2);
592
593 if (!EIO_CANCELLED (req) && req->callback)
594 {
595 dSP;
596 static SV *sv_result_cache; /* caches the result integer SV */
597 SV *sv_result;
598
599 ENTER;
600 SAVETMPS;
601 PUSHMARK (SP);
602 EXTEND (SP, 1);
603
604 /* do not recreate the result IV from scratch each time */
605 if (expect_true (sv_result_cache))
606 {
607 sv_result = sv_result_cache; sv_result_cache = 0;
608 SvIV_set (sv_result, req->result);
609 SvIOK_only (sv_result);
610 }
611 else
612 {
613 sv_result = newSViv (req->result);
614 SvREADONLY_on (sv_result);
615 }
616
617 switch (req->type)
618 {
619 case EIO_WD_OPEN:
620 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
621 break;
622
623 case EIO_READDIR:
624 {
625 SV *rv = &PL_sv_undef;
626
627 if (req->result >= 0)
628 {
629 int i;
630 char *names = (char *)req->ptr2;
631 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
632 AV *av = newAV ();
633
634 av_extend (av, req->result - 1);
635
636 for (i = 0; i < req->result; ++i)
637 {
638 if (req->int1 & EIO_READDIR_DENTS)
639 {
640 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
641
642 if (req->int1 & EIO_READDIR_CUSTOM2)
643 {
644 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
645 AV *avent = newAV ();
646
647 av_extend (avent, 2);
648
649 if (!sv_type [ent->type])
650 {
651 sv_type [ent->type] = newSViv (ent->type);
652 SvREADONLY_on (sv_type [ent->type]);
653 }
654
655 av_store (avent, 0, namesv);
656 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
657 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
658
659 av_store (av, i, newRV_noinc ((SV *)avent));
660 }
661 else
662 av_store (av, i, namesv);
663
664 ++ent;
665 }
666 else
667 {
668 SV *name = newSVpv (names, 0);
669 av_store (av, i, name);
670 names += SvCUR (name) + 1;
671 }
672 }
673
674 rv = sv_2mortal (newRV_noinc ((SV *)av));
675 }
676
677 PUSHs (rv);
678
679 if (req->int1 & EIO_READDIR_CUSTOM1)
680 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
681 }
682 break;
683
684 case EIO_OPEN:
685 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
686 break;
687
688 case EIO_STATVFS:
689 case EIO_FSTATVFS:
690 {
691 SV *rv = &PL_sv_undef;
692
693#ifndef _WIN32
694 if (req->result >= 0)
695 {
696 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
697 HV *hv = newHV ();
698 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
699 * chooses to make it a struct.
700 */
701 unsigned long fsid = 0;
702 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
703
704 rv = sv_2mortal (newRV_noinc ((SV *)hv));
705
706 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
707 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
708 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
709 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
710 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
711 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
712 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
713 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
714 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
715 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
716 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
717 }
718#endif
719
720 PUSHs (rv);
721 }
722
723 break;
724
725 case EIO_GROUP:
726 req->int1 = 2; /* mark group as finished */
727
728 if (req->sv1)
729 {
730 int i;
731 AV *av = (AV *)req->sv1;
732
733 EXTEND (SP, AvFILL (av) + 1);
734 for (i = 0; i <= AvFILL (av); ++i)
735 PUSHs (*av_fetch (av, i, 0));
736 }
737 break;
738
739 case EIO_NOP:
740 case EIO_BUSY:
741 break;
742
743 case EIO_READLINK:
744 case EIO_REALPATH:
745 if (req->result > 0)
746 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
747 break;
748
749 case EIO_STAT:
750 case EIO_LSTAT:
751 case EIO_FSTAT:
752 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
753
754 if (!(PL_laststatval = req->result))
755 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
756 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
757
758 PUSHs (sv_result);
759 break;
760
761 case EIO_SEEK:
762 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
763 break;
764
765 case EIO_READ:
766 {
767 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
768 *SvEND (req->sv2) = 0;
769 SvPOK_only (req->sv2);
770 SvSETMAGIC (req->sv2);
771 PUSHs (sv_result);
772 }
773 break;
774
775 case EIO_SLURP:
776 {
777 if (req->result >= 0)
778 {
779 /* if length was originally not known, we steal the malloc'ed memory */
780 if (req->flags & EIO_FLAG_PTR2_FREE)
781 {
782 req->flags &= ~EIO_FLAG_PTR2_FREE;
783 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
784 }
785 else
786 {
787 SvCUR_set (req->sv2, req->result);
788 *SvEND (req->sv2) = 0;
789 SvPOK_only (req->sv2);
790 }
791
792 SvSETMAGIC (req->sv2);
793 }
794
795 PUSHs (sv_result);
796 }
797 break;
798
799 case EIO_CUSTOM:
800 if (req->feed == fiemap)
801 {
802#if HAVE_FIEMAP
803 if (!req->result)
804 {
805 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
806
807 if (fiemap->fm_extent_count)
808 {
809 AV *av = newAV ();
810 int i;
811
812 while (fiemap->fm_mapped_extents)
813 {
814 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
815 AV *ext_av = newAV ();
816
817 av_store (ext_av, 3, newSVuv (extent->fe_flags));
818 av_store (ext_av, 2, newSVval64 (extent->fe_length));
819 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
820 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
821
822 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
823 }
824
825 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
826 }
827 else
828 {
829 SvIV_set (sv_result, fiemap->fm_mapped_extents);
830 PUSHs (sv_result);
831 }
832 }
833#endif
834 }
835 else
836 PUSHs (sv_result);
837 break;
838
839#if 0
840 case EIO_CLOSE:
841 PerlIOUnix_refcnt_dec (req->int1);
842 break;
843#endif
844
845 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
846 if (req->result > 0)
847 SvIV_set (sv_result, 0);
848 /* FALLTHROUGH */
849
850 default:
851 PUSHs (sv_result);
852 break;
853 }
854
855 errno = req->errorno;
856
857 PUTBACK;
858 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
859 SPAGAIN;
860
861 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
862 SvREFCNT_dec (sv_result);
863 else
864 sv_result_cache = sv_result;
865
866 FREETMPS;
867 LEAVE;
868
869 PUTBACK;
870 }
871
872 return !!SvTRUE (ERRSV);
873}
874
875static void
876req_destroy (aio_req req)
155{ 877{
156 if (req->self) 878 if (req->self)
157 { 879 {
158 sv_unmagic (req->self, PERL_MAGIC_ext); 880 sv_unmagic (req->self, PERL_MAGIC_ext);
159 SvREFCNT_dec (req->self); 881 SvREFCNT_dec (req->self);
160 } 882 }
161 883
162 if (req->data)
163 SvREFCNT_dec (req->data);
164
165 if (req->fh)
166 SvREFCNT_dec (req->fh); 884 SvREFCNT_dec (req->sv1);
167
168 if (req->fh2)
169 SvREFCNT_dec (req->fh2); 885 SvREFCNT_dec (req->sv2);
170 886 SvREFCNT_dec (req->sv3);
171 if (req->statdata) 887 SvREFCNT_dec (req->sv4);
172 Safefree (req->statdata);
173
174 if (req->callback)
175 SvREFCNT_dec (req->callback); 888 SvREFCNT_dec (req->callback);
176 889
177 if (req->type == REQ_READDIR && req->result >= 0)
178 free (req->data2ptr);
179
180 Safefree (req); 890 free (req);
181} 891}
182 892
183static void 893static void
894req_cancel_subs (aio_req grp)
895{
896 if (grp->type != EIO_GROUP)
897 return;
898
899 SvREFCNT_dec (grp->sv2);
900 grp->sv2 = 0;
901
902 eio_grp_cancel (grp);
903}
904
905ecb_cold
906static void
907create_respipe (void)
908{
909 if (s_epipe_renew (&respipe))
910 croak ("IO::AIO: unable to initialize result pipe");
911}
912
913static void
184poll_wait () 914poll_wait (void)
185{ 915{
186 if (nreqs && !ress) 916 while (eio_nreqs ())
187 { 917 {
188 fd_set rfd; 918 int size;
189 FD_ZERO(&rfd);
190 FD_SET(respipe [0], &rfd);
191 919
192 select (respipe [0] + 1, &rfd, 0, 0, 0); 920 X_LOCK (EIO_POOL->reslock);
921 size = EIO_POOL->res_queue.size;
922 X_UNLOCK (EIO_POOL->reslock);
923
924 if (size)
925 return;
926
927 etp_maybe_start_thread (EIO_POOL);
928
929 s_epipe_wait (&respipe);
193 } 930 }
194} 931}
195 932
196static int 933static int
197poll_cb () 934poll_cb (void)
198{ 935{
199 dSP;
200 int count = 0;
201 int do_croak = 0;
202 aio_req req;
203
204 for (;;) 936 for (;;)
205 { 937 {
206 pthread_mutex_lock (&reslock); 938 int res = eio_poll ();
207 req = ress;
208 939
209 if (req) 940 if (res > 0)
941 croak (0);
942
943 if (!max_outstanding || max_outstanding > eio_nreqs ())
944 return res;
945
946 poll_wait ();
947 }
948}
949
950ecb_cold
951static void
952reinit (void)
953{
954 create_respipe ();
955
956 if (eio_init (want_poll, done_poll) < 0)
957 croak ("IO::AIO: unable to initialise eio library");
958}
959
960/*****************************************************************************/
961
962static SV *
963get_cb (SV *cb_sv)
964{
965 SvGETMAGIC (cb_sv);
966 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
967}
968
969ecb_noinline
970static aio_req ecb_noinline
971dreq (SV *callback)
972{
973 SV *cb_cv;
974 aio_req req;
975 int req_pri = next_pri;
976 next_pri = EIO_PRI_DEFAULT;
977
978 cb_cv = get_cb (callback);
979
980 req = calloc (sizeof (*req), 1);
981 if (!req)
982 croak ("out of memory during eio_req allocation");
983
984 req->callback = SvREFCNT_inc (cb_cv);
985 req->pri = req_pri;
986
987 return req;
988}
989
990#define dREQ \
991 aio_req req = dreq (callback); \
992
993#define REQ_SEND \
994 PUTBACK; \
995 req_submit (req); \
996 SPAGAIN; \
997 \
998 if (GIMME_V != G_VOID) \
999 XPUSHs (req_sv (req, aio_req_stash));
1000
1001/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1002ecb_inline
1003void
1004req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1005{
1006 if (expect_false (SvROK (path)))
1007 {
1008 SV *rv = SvRV (path);
1009 SV *wdob;
1010
1011 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
210 { 1012 {
211 ress = req->next; 1013 path = AvARRAY (rv)[1];
1014 wdob = AvARRAY (rv)[0];
212 1015
213 if (!ress) 1016 if (SvOK (wdob))
214 { 1017 {
215 /* read any signals sent by the worker threads */ 1018 *wd = SvAIO_WD (wdob);
216 char buf [32]; 1019 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
217 while (read (respipe [0], buf, 32) == 32)
218 ;
219
220 rese = 0;
221 }
222 }
223
224 pthread_mutex_unlock (&reslock);
225
226 if (!req)
227 break;
228
229 nreqs--;
230
231 if (req->type == REQ_QUIT)
232 started--;
233 else
234 {
235 int errorno = errno;
236 errno = req->errorno;
237
238 if (req->type == REQ_READ)
239 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
240
241 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
242 SvREADONLY_off (req->data);
243
244 if (req->statdata)
245 {
246 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
247 PL_laststatval = req->result;
248 PL_statcache = *(req->statdata);
249 }
250
251 ENTER;
252 PUSHMARK (SP);
253
254 if (req->type == REQ_READDIR)
255 {
256 SV *rv = &PL_sv_undef;
257
258 if (req->result >= 0)
259 {
260 char *buf = req->data2ptr;
261 AV *av = newAV ();
262
263 while (req->result)
264 {
265 SV *sv = newSVpv (buf, 0);
266
267 av_push (av, sv);
268 buf += SvCUR (sv) + 1;
269 req->result--;
270 }
271
272 rv = sv_2mortal (newRV_noinc ((SV *)av));
273 }
274
275 XPUSHs (rv);
276 } 1020 }
277 else 1021 else
278 { 1022 *wd = EIO_INVALID_WD;
279 XPUSHs (sv_2mortal (newSViv (req->result)));
280
281 if (req->type == REQ_OPEN)
282 {
283 /* convert fd to fh */
284 SV *fh;
285
286 PUTBACK;
287 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
288 SPAGAIN;
289
290 fh = SvREFCNT_inc (POPs);
291
292 PUSHMARK (SP);
293 XPUSHs (sv_2mortal (fh));
294 }
295 }
296
297 if (SvOK (req->callback) && !req->cancelled)
298 {
299 PUTBACK;
300 call_sv (req->callback, G_VOID | G_EVAL);
301 SPAGAIN;
302
303 if (SvTRUE (ERRSV))
304 {
305 req_free (req);
306 croak (0);
307 }
308 }
309
310 LEAVE;
311
312 errno = errorno;
313 count++;
314 } 1023 }
315 1024 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
316 req_free (req);
317 }
318
319 return count;
320}
321
322static void *aio_proc(void *arg);
323
324static void
325start_thread (void)
326{
327 sigset_t fullsigset, oldsigset;
328 pthread_t tid;
329 pthread_attr_t attr;
330
331 pthread_attr_init (&attr);
332 pthread_attr_setstacksize (&attr, STACKSIZE);
333 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
334
335 sigfillset (&fullsigset);
336 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
337
338 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
339 started++;
340
341 sigprocmask (SIG_SETMASK, &oldsigset, 0);
342}
343
344static void
345req_send (aio_req req)
346{
347 while (started < wanted && nreqs >= started)
348 start_thread ();
349
350 nreqs++;
351
352 pthread_mutex_lock (&reqlock);
353
354 req->next = 0;
355
356 if (reqe)
357 {
358 reqe->next = req;
359 reqe = req;
360 }
361 else
362 reqe = reqs = req;
363
364 pthread_cond_signal (&reqwait);
365 pthread_mutex_unlock (&reqlock);
366
367 if (nreqs > max_outstanding)
368 for (;;)
369 {
370 poll_cb ();
371
372 if (nreqs <= max_outstanding)
373 break;
374
375 poll_wait ();
376 }
377}
378
379static void
380end_thread (void)
381{
382 aio_req req;
383 Newz (0, req, 1, aio_cb);
384 req->type = REQ_QUIT;
385
386 req_send (req);
387}
388
389static void min_parallel (int nthreads)
390{
391 if (wanted < nthreads)
392 wanted = nthreads;
393}
394
395static void max_parallel (int nthreads)
396{
397 int cur = started;
398
399 if (wanted > nthreads)
400 wanted = nthreads;
401
402 while (cur > wanted)
403 {
404 end_thread ();
405 cur--;
406 }
407
408 while (started > wanted)
409 {
410 poll_wait ();
411 poll_cb ();
412 }
413}
414
415static void create_pipe ()
416{
417 if (pipe (respipe))
418 croak ("unable to initialize result pipe");
419
420 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
421 croak ("cannot set result pipe to nonblocking mode");
422
423 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
424 croak ("cannot set result pipe to nonblocking mode");
425}
426
427/*****************************************************************************/
428/* work around various missing functions */
429
430#if !HAVE_PREADWRITE
431# define pread aio_pread
432# define pwrite aio_pwrite
433
434/*
435 * make our pread/pwrite safe against themselves, but not against
436 * normal read/write by using a mutex. slows down execution a lot,
437 * but that's your problem, not mine.
438 */
439static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
440
441static ssize_t
442pread (int fd, void *buf, size_t count, off_t offset)
443{
444 ssize_t res;
445 off_t ooffset;
446
447 pthread_mutex_lock (&preadwritelock);
448 ooffset = lseek (fd, 0, SEEK_CUR);
449 lseek (fd, offset, SEEK_SET);
450 res = read (fd, buf, count);
451 lseek (fd, ooffset, SEEK_SET);
452 pthread_mutex_unlock (&preadwritelock);
453
454 return res;
455}
456
457static ssize_t
458pwrite (int fd, void *buf, size_t count, off_t offset)
459{
460 ssize_t res;
461 off_t ooffset;
462
463 pthread_mutex_lock (&preadwritelock);
464 ooffset = lseek (fd, 0, SEEK_CUR);
465 lseek (fd, offset, SEEK_SET);
466 res = write (fd, buf, count);
467 lseek (fd, offset, SEEK_SET);
468 pthread_mutex_unlock (&preadwritelock);
469
470 return res;
471}
472#endif
473
474#if !HAVE_FDATASYNC
475# define fdatasync fsync
476#endif
477
478#if !HAVE_READAHEAD
479# define readahead aio_readahead
480
481static ssize_t
482readahead (int fd, off_t offset, size_t count)
483{
484 char readahead_buf[4096];
485
486 while (count > 0)
487 {
488 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
489
490 pread (fd, readahead_buf, len, offset);
491 offset += len;
492 count -= len;
493 }
494
495 errno = 0;
496}
497#endif
498
499#if !HAVE_READDIR_R
500# define readdir_r aio_readdir_r
501
502static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
503
504static int
505readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
506{
507 struct dirent *e;
508 int errorno;
509
510 pthread_mutex_lock (&readdirlock);
511
512 e = readdir (dirp);
513 errorno = errno;
514
515 if (e)
516 {
517 *res = ent;
518 strcpy (ent->d_name, e->d_name);
519 }
520 else
521 *res = 0;
522
523 pthread_mutex_unlock (&readdirlock);
524
525 errno = errorno;
526 return e ? 0 : -1;
527}
528#endif
529
530/* sendfile always needs emulation */
531static ssize_t
532sendfile_ (int ofd, int ifd, off_t offset, size_t count)
533{
534 ssize_t res;
535
536 if (!count)
537 return 0;
538
539#if HAVE_SENDFILE
540# if __linux
541 res = sendfile (ofd, ifd, &offset, count);
542
543# elif __freebsd
544 /*
545 * Of course, the freebsd sendfile is a dire hack with no thoughts
546 * wasted on making it similar to other I/O functions.
547 */
548 {
549 off_t sbytes;
550 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
551
552 if (res < 0 && sbytes)
553 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
554 res = sbytes;
555 }
556
557# elif __hpux
558 res = sendfile (ofd, ifd, offset, count, 0, 0);
559
560# elif __solaris
561 {
562 struct sendfilevec vec;
563 size_t sbytes;
564
565 vec.sfv_fd = ifd;
566 vec.sfv_flag = 0;
567 vec.sfv_off = offset;
568 vec.sfv_len = count;
569
570 res = sendfilev (ofd, &vec, 1, &sbytes);
571
572 if (res < 0 && sbytes)
573 res = sbytes;
574 }
575
576# endif
577#else
578 res = -1;
579 errno = ENOSYS;
580#endif
581
582 if (res < 0
583 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
584#if __solaris
585 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
586#endif
587 )
588 )
589 {
590 /* emulate sendfile. this is a major pain in the ass */
591 char buf[4096];
592 res = 0;
593
594 while (count)
595 { 1025 {
596 ssize_t cnt; 1026 *wd = (aio_wd)(long)SvIVX (rv);
597 1027 *wdsv = SvREFCNT_inc_NN (rv);
598 cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); 1028 *ptr = ".";
599 1029 return; /* path set to "." */
600 if (cnt <= 0)
601 {
602 if (cnt && !res) res = -1;
603 break;
604 }
605
606 cnt = write (ofd, buf, cnt);
607
608 if (cnt <= 0)
609 {
610 if (cnt && !res) res = -1;
611 break;
612 }
613
614 offset += cnt;
615 res += cnt;
616 count -= cnt;
617 }
618 }
619
620 return res;
621}
622
623/* read a full directory */
624static int
625scandir_ (const char *path, void **namesp)
626{
627 DIR *dirp = opendir (path);
628 union
629 {
630 struct dirent d;
631 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
632 } u;
633 struct dirent *entp;
634 char *name, *names;
635 int memlen = 4096;
636 int memofs = 0;
637 int res = 0;
638 int errorno;
639
640 if (!dirp)
641 return -1;
642
643 names = malloc (memlen);
644
645 for (;;)
646 {
647 errno = 0, readdir_r (dirp, &u.d, &entp);
648
649 if (!entp)
650 break;
651
652 name = entp->d_name;
653
654 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
655 {
656 int len = strlen (name) + 1;
657
658 res++;
659
660 while (memofs + len > memlen)
661 {
662 memlen *= 2;
663 names = realloc (names, memlen);
664 if (!names)
665 break;
666 }
667
668 memcpy (names + memofs, name, len);
669 memofs += len;
670 }
671 }
672
673 errorno = errno;
674 closedir (dirp);
675
676 if (errorno)
677 {
678 free (names);
679 errno = errorno;
680 res = -1;
681 }
682
683 *namesp = (void *)names;
684 return res;
685}
686
687/*****************************************************************************/
688
689static void *
690aio_proc (void *thr_arg)
691{
692 aio_req req;
693 int type;
694
695 do
696 {
697 pthread_mutex_lock (&reqlock);
698
699 for (;;)
700 {
701 req = reqs;
702
703 if (reqs)
704 {
705 reqs = reqs->next;
706 if (!reqs) reqe = 0;
707 }
708
709 if (req)
710 break;
711
712 pthread_cond_wait (&reqwait, &reqlock);
713 }
714
715 pthread_mutex_unlock (&reqlock);
716
717 errno = 0; /* strictly unnecessary */
718
719 if (!req->cancelled)
720 switch (req->type)
721 {
722 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
723 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
724
725 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
726 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
727
728 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
729 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
730 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
731
732 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
733 case REQ_CLOSE: req->result = close (req->fd); break;
734 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
735 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
736 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
737 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
738 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
739
740 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
741 case REQ_FSYNC: req->result = fsync (req->fd); break;
742 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
743
744 case REQ_QUIT:
745 break;
746
747 default:
748 req->result = ENOSYS;
749 break;
750 }
751
752 req->errorno = errno;
753
754 pthread_mutex_lock (&reslock);
755
756 req->next = 0;
757
758 if (rese)
759 {
760 rese->next = req;
761 rese = req;
762 } 1030 }
763 else 1031 else
764 { 1032 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
765 rese = ress = req;
766
767 /* write a dummy byte to the pipe so fh becomes ready */
768 write (respipe [1], &respipe, 1);
769 }
770
771 pthread_mutex_unlock (&reslock);
772 } 1033 }
773 while (type != REQ_QUIT);
774 1034
775 return 0; 1035 *pathsv = newSVsv (path);
1036 *ptr = SvPVbyte_nolen (*pathsv);
1037}
1038
1039ecb_noinline
1040static void
1041req_set_path1 (aio_req req, SV *path)
1042{
1043 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
1044}
1045
1046ecb_noinline
1047static void
1048req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1049{
1050 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1051
1052 switch (SvTYPE (rv))
1053 {
1054 case SVt_PVIO:
1055 case SVt_PVLV:
1056 case SVt_PVGV:
1057 req->type = type_fh;
1058 req->sv1 = newSVsv (fh_or_path);
1059 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1060 break;
1061
1062 default:
1063 req->type = type_path;
1064 req_set_path1 (req, fh_or_path);
1065 break;
1066 }
776} 1067}
777 1068
778/*****************************************************************************/ 1069/*****************************************************************************/
779 1070
780static void atfork_prepare (void) 1071static void
1072ts_set (struct timespec *ts, NV value)
781{ 1073{
782 pthread_mutex_lock (&reqlock); 1074 ts->tv_sec = value;
783 pthread_mutex_lock (&reslock); 1075 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
784#if !HAVE_PREADWRITE
785 pthread_mutex_lock (&preadwritelock);
786#endif
787#if !HAVE_READDIR_R
788 pthread_mutex_lock (&readdirlock);
789#endif
790} 1076}
791 1077
792static void atfork_parent (void) 1078static NV
1079ts_get (const struct timespec *ts)
793{ 1080{
794#if !HAVE_READDIR_R 1081 return ts->tv_sec + ts->tv_nsec * 1e-9;
795 pthread_mutex_unlock (&readdirlock);
796#endif
797#if !HAVE_PREADWRITE
798 pthread_mutex_unlock (&preadwritelock);
799#endif
800 pthread_mutex_unlock (&reslock);
801 pthread_mutex_unlock (&reqlock);
802} 1082}
803 1083
804static void atfork_child (void) 1084/*****************************************************************************/
805{
806 aio_req prv;
807 1085
808 started = 0; 1086XS(boot_IO__AIO) ecb_cold;
809 1087
810 while (reqs)
811 {
812 prv = reqs;
813 reqs = prv->next;
814 req_free (prv);
815 }
816
817 reqs = reqe = 0;
818
819 while (ress)
820 {
821 prv = ress;
822 ress = prv->next;
823 req_free (prv);
824 }
825
826 ress = rese = 0;
827
828 close (respipe [0]);
829 close (respipe [1]);
830 create_pipe ();
831
832 atfork_parent ();
833}
834
835#define dREQ \
836 aio_req req; \
837 \
838 if (SvOK (callback) && !SvROK (callback)) \
839 croak ("callback must be undef or of reference type"); \
840 \
841 Newz (0, req, 1, aio_cb); \
842 if (!req) \
843 croak ("out of memory during aio_req allocation"); \
844 \
845 req->callback = newSVsv (callback)
846
847#define REQ_SEND \
848 req_send (req); \
849 \
850 if (GIMME_V != G_VOID) \
851 XPUSHs (req_sv (req));
852
853MODULE = IO::AIO PACKAGE = IO::AIO 1088MODULE = IO::AIO PACKAGE = IO::AIO
854 1089
855PROTOTYPES: ENABLE 1090PROTOTYPES: ENABLE
856 1091
857BOOT: 1092BOOT:
858{ 1093{
1094 static const struct {
1095 const char *name;
1096 IV iv;
1097 } *civ, const_iv[] = {
1098# define const_niv(name, value) { # name, (IV) value },
1099# define const_iv(name) { # name, (IV) name },
1100# define const_eio(name) { # name, (IV) EIO_ ## name },
1101
1102 /* you have to re-run ./gendef0 after adding/removing any constants here */
1103 /* the first block can be undef if missing */
1104 const_iv (ENOSYS)
1105 const_iv (EXDEV)
1106 const_iv (EBADR)
1107
1108 /* for lseek */
1109 const_iv (SEEK_DATA)
1110 const_iv (SEEK_HOLE)
1111
1112 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1113 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1114 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1115 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1116 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1117 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1118
1119 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1120 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1121 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1122 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1123 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1124
1125 /* the second block will be 0 when missing */
1126 const_iv (O_ACCMODE)
1127
1128 const_iv (O_RDONLY)
1129 const_iv (O_WRONLY)
1130 const_iv (O_RDWR)
1131 const_iv (O_CREAT)
1132 const_iv (O_TRUNC)
1133 const_iv (O_EXCL)
1134 const_iv (O_APPEND)
1135
1136 const_iv (O_ASYNC)
1137 const_iv (O_DIRECT)
1138 const_iv (O_NOATIME)
1139
1140 const_iv (O_CLOEXEC)
1141 const_iv (O_NOCTTY)
1142 const_iv (O_NOFOLLOW)
1143 const_iv (O_NONBLOCK)
1144 const_iv (O_EXEC)
1145 const_iv (O_SEARCH)
1146 const_iv (O_DIRECTORY)
1147 const_iv (O_DSYNC)
1148 const_iv (O_RSYNC)
1149 const_iv (O_SYNC)
1150 const_iv (O_PATH)
1151 const_iv (O_TMPFILE)
1152 const_iv (O_TTY_INIT)
1153
1154 const_iv (S_IFIFO)
1155 const_iv (S_IFCHR)
1156 const_iv (S_IFBLK)
1157 const_iv (S_IFLNK)
1158 const_iv (S_IFREG)
1159 const_iv (S_IFDIR)
1160 const_iv (S_IFWHT)
1161 const_iv (S_IFSOCK)
1162 const_iv (S_IFMT)
1163
1164 const_iv (ST_RDONLY)
1165 const_iv (ST_NOSUID)
1166 const_iv (ST_NODEV)
1167 const_iv (ST_NOEXEC)
1168 const_iv (ST_SYNCHRONOUS)
1169 const_iv (ST_MANDLOCK)
1170 const_iv (ST_WRITE)
1171 const_iv (ST_APPEND)
1172 const_iv (ST_IMMUTABLE)
1173 const_iv (ST_NOATIME)
1174 const_iv (ST_NODIRATIME)
1175 const_iv (ST_RELATIME)
1176
1177 const_iv (PROT_NONE)
1178 const_iv (PROT_EXEC)
1179 const_iv (PROT_READ)
1180 const_iv (PROT_WRITE)
1181
1182 const_iv (MAP_PRIVATE)
1183 const_iv (MAP_SHARED)
1184 const_iv (MAP_FIXED)
1185 const_iv (MAP_ANONYMOUS)
1186
1187 /* linuxish */
1188 const_iv (MAP_LOCKED)
1189 const_iv (MAP_NORESERVE)
1190 const_iv (MAP_POPULATE)
1191 const_iv (MAP_NONBLOCK)
1192 const_iv (MAP_GROWSDOWN)
1193 const_iv (MAP_32BIT)
1194 const_iv (MAP_HUGETLB)
1195 const_iv (MAP_STACK)
1196
1197 const_iv (MREMAP_MAYMOVE)
1198 const_iv (MREMAP_FIXED)
1199
1200 const_iv (F_DUPFD_CLOEXEC)
1201
1202 const_iv (MSG_CMSG_CLOEXEC)
1203 const_iv (SOCK_CLOEXEC)
1204
1205 const_iv (F_OFD_GETLK)
1206 const_iv (F_OFD_SETLK)
1207 const_iv (F_OFD_GETLKW)
1208
1209 const_iv (FIFREEZE)
1210 const_iv (FITHAW)
1211 const_iv (FITRIM)
1212 const_iv (FICLONE)
1213 const_iv (FICLONERANGE)
1214 const_iv (FIDEDUPERANGE)
1215
1216 const_iv (FS_IOC_GETFLAGS)
1217 const_iv (FS_IOC_SETFLAGS)
1218 const_iv (FS_IOC_GETVERSION)
1219 const_iv (FS_IOC_SETVERSION)
1220 const_iv (FS_IOC_FIEMAP)
1221 const_iv (FS_IOC_FSGETXATTR)
1222 const_iv (FS_IOC_FSSETXATTR)
1223 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1224 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1225 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1226
1227 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1228
1229 const_iv (FS_SECRM_FL)
1230 const_iv (FS_UNRM_FL)
1231 const_iv (FS_COMPR_FL)
1232 const_iv (FS_SYNC_FL)
1233 const_iv (FS_IMMUTABLE_FL)
1234 const_iv (FS_APPEND_FL)
1235 const_iv (FS_NODUMP_FL)
1236 const_iv (FS_NOATIME_FL)
1237 const_iv (FS_DIRTY_FL)
1238 const_iv (FS_COMPRBLK_FL)
1239 const_iv (FS_NOCOMP_FL)
1240 const_iv (FS_ENCRYPT_FL)
1241 const_iv (FS_BTREE_FL)
1242 const_iv (FS_INDEX_FL)
1243 const_iv (FS_JOURNAL_DATA_FL)
1244 const_iv (FS_NOTAIL_FL)
1245 const_iv (FS_DIRSYNC_FL)
1246 const_iv (FS_TOPDIR_FL)
1247 const_iv (FS_FL_USER_MODIFIABLE)
1248
1249 const_iv (FS_XFLAG_REALTIME)
1250 const_iv (FS_XFLAG_PREALLOC)
1251 const_iv (FS_XFLAG_IMMUTABLE)
1252 const_iv (FS_XFLAG_APPEND)
1253 const_iv (FS_XFLAG_SYNC)
1254 const_iv (FS_XFLAG_NOATIME)
1255 const_iv (FS_XFLAG_NODUMP)
1256 const_iv (FS_XFLAG_RTINHERIT)
1257 const_iv (FS_XFLAG_PROJINHERIT)
1258 const_iv (FS_XFLAG_NOSYMLINKS)
1259 const_iv (FS_XFLAG_EXTSIZE)
1260 const_iv (FS_XFLAG_EXTSZINHERIT)
1261 const_iv (FS_XFLAG_NODEFRAG)
1262 const_iv (FS_XFLAG_FILESTREAM)
1263 const_iv (FS_XFLAG_DAX)
1264 const_iv (FS_XFLAG_HASATTR)
1265
1266 const_iv (FIEMAP_FLAG_SYNC)
1267 const_iv (FIEMAP_FLAG_XATTR)
1268 const_iv (FIEMAP_FLAGS_COMPAT)
1269 const_iv (FIEMAP_EXTENT_LAST)
1270 const_iv (FIEMAP_EXTENT_UNKNOWN)
1271 const_iv (FIEMAP_EXTENT_DELALLOC)
1272 const_iv (FIEMAP_EXTENT_ENCODED)
1273 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1274 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1275 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1276 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1277 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1278 const_iv (FIEMAP_EXTENT_MERGED)
1279 const_iv (FIEMAP_EXTENT_SHARED)
1280
1281 const_iv (SPLICE_F_MOVE)
1282 const_iv (SPLICE_F_NONBLOCK)
1283 const_iv (SPLICE_F_MORE)
1284 const_iv (SPLICE_F_GIFT)
1285
1286 const_iv (EFD_CLOEXEC)
1287 const_iv (EFD_NONBLOCK)
1288 const_iv (EFD_SEMAPHORE)
1289
1290 const_iv (MFD_CLOEXEC)
1291 const_iv (MFD_ALLOW_SEALING)
1292 const_iv (MFD_HUGETLB)
1293
1294 const_iv (CLOCK_REALTIME)
1295 const_iv (CLOCK_MONOTONIC)
1296 const_iv (CLOCK_BOOTTIME)
1297 const_iv (CLOCK_REALTIME_ALARM)
1298 const_iv (CLOCK_BOOTTIME_ALARM)
1299
1300 const_iv (TFD_NONBLOCK)
1301 const_iv (TFD_CLOEXEC)
1302
1303 const_iv (TFD_TIMER_ABSTIME)
1304 const_iv (TFD_TIMER_CANCEL_ON_SET)
1305
1306 const_iv (STATX_TYPE)
1307 const_iv (STATX_MODE)
1308 const_iv (STATX_NLINK)
1309 const_iv (STATX_UID)
1310 const_iv (STATX_GID)
1311 const_iv (STATX_ATIME)
1312 const_iv (STATX_MTIME)
1313 const_iv (STATX_CTIME)
1314 const_iv (STATX_INO)
1315 const_iv (STATX_SIZE)
1316 const_iv (STATX_BLOCKS)
1317 const_iv (STATX_BASIC_STATS)
1318 const_iv (STATX_ALL)
1319 const_iv (STATX_BTIME)
1320 const_iv (STATX_ATTR_COMPRESSED)
1321 const_iv (STATX_ATTR_IMMUTABLE)
1322 const_iv (STATX_ATTR_APPEND)
1323 const_iv (STATX_ATTR_NODUMP)
1324 const_iv (STATX_ATTR_ENCRYPTED)
1325 const_iv (STATX_ATTR_AUTOMOUNT)
1326
1327 /* these are libeio constants, and are independent of gendef0 */
1328 const_eio (SEEK_SET)
1329 const_eio (SEEK_CUR)
1330 const_eio (SEEK_END)
1331
1332 const_eio (MCL_FUTURE)
1333 const_eio (MCL_CURRENT)
1334 const_eio (MCL_ONFAULT)
1335
1336 const_eio (MS_ASYNC)
1337 const_eio (MS_INVALIDATE)
1338 const_eio (MS_SYNC)
1339
1340 const_eio (MT_MODIFY)
1341
1342 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1343 const_eio (SYNC_FILE_RANGE_WRITE)
1344 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1345
1346 const_eio (FALLOC_FL_KEEP_SIZE)
1347 const_eio (FALLOC_FL_PUNCH_HOLE)
1348 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1349 const_eio (FALLOC_FL_ZERO_RANGE)
1350 const_eio (FALLOC_FL_INSERT_RANGE)
1351 const_eio (FALLOC_FL_UNSHARE_RANGE)
1352
1353 const_eio (RENAME_NOREPLACE)
1354 const_eio (RENAME_EXCHANGE)
1355 const_eio (RENAME_WHITEOUT)
1356
1357 const_eio (READDIR_DENTS)
1358 const_eio (READDIR_DIRS_FIRST)
1359 const_eio (READDIR_STAT_ORDER)
1360 const_eio (READDIR_FOUND_UNKNOWN)
1361
1362 const_eio (DT_UNKNOWN)
1363 const_eio (DT_FIFO)
1364 const_eio (DT_CHR)
1365 const_eio (DT_DIR)
1366 const_eio (DT_BLK)
1367 const_eio (DT_REG)
1368 const_eio (DT_LNK)
1369 const_eio (DT_SOCK)
1370 const_eio (DT_WHT)
1371 };
1372
859 HV *stash = gv_stashpv ("IO::AIO", 1); 1373 aio_stash = gv_stashpv ("IO::AIO" , 1);
860 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1374 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
861 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1375 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
862 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 1376 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
863 1377
864 create_pipe (); 1378 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
865 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 1379 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
866}
867 1380
1381 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1382
1383 /* allocate dummy pipe fd for aio_close */
1384 {
1385 int pipefd [2];
1386
1387 if (
1388#ifdef _WIN32
1389 _pipe (pipefd, 1, _O_BINARY) < 0
1390#else
1391 pipe (pipefd) < 0
1392 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1393#endif
1394 || close (pipefd [1]) < 0
1395 )
1396 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1397
1398 close_fd = pipefd [0];
1399 }
1400
1401 reinit ();
1402}
1403
868void 1404void
869min_parallel (nthreads) 1405reinit ()
870 int nthreads 1406 PROTOTYPE:
1407
1408void
1409max_poll_reqs (unsigned int nreqs)
871 PROTOTYPE: $ 1410 PROTOTYPE: $
1411 CODE:
1412 eio_set_max_poll_reqs (nreqs);
872 1413
873void 1414void
874max_parallel (nthreads) 1415max_poll_time (double nseconds)
875 int nthreads
876 PROTOTYPE: $ 1416 PROTOTYPE: $
877
878int
879max_outstanding (nreqs)
880 int nreqs
881 PROTOTYPE: $
882 CODE: 1417 CODE:
883 RETVAL = max_outstanding; 1418 eio_set_max_poll_time (nseconds);
1419
1420void
1421min_parallel (unsigned int nthreads)
1422 PROTOTYPE: $
1423 CODE:
1424 eio_set_min_parallel (nthreads);
1425
1426void
1427max_parallel (unsigned int nthreads)
1428 PROTOTYPE: $
1429 CODE:
1430 eio_set_max_parallel (nthreads);
1431
1432void
1433max_idle (unsigned int nthreads)
1434 PROTOTYPE: $
1435 CODE:
1436 eio_set_max_idle (nthreads);
1437
1438void
1439idle_timeout (unsigned int seconds)
1440 PROTOTYPE: $
1441 CODE:
1442 eio_set_idle_timeout (seconds);
1443
1444void
1445max_outstanding (unsigned int maxreqs)
1446 PROTOTYPE: $
1447 CODE:
884 max_outstanding = nreqs; 1448 max_outstanding = maxreqs;
885 1449
886void 1450void
887aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1451aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
888 SV * pathname
889 int flags
890 int mode
891 SV * callback
892 PROTOTYPE: $$$;$
893 PPCODE: 1452 PPCODE:
894{ 1453{
895 dREQ; 1454 dREQ;
896 1455
897 req->type = REQ_OPEN; 1456 req->type = EIO_WD_OPEN;
898 req->data = newSVsv (pathname); 1457 req_set_path1 (req, pathname);
899 req->dataptr = SvPVbyte_nolen (req->data);
900 req->fd = flags;
901 req->mode = mode;
902 1458
903 REQ_SEND; 1459 REQ_SEND;
904} 1460}
905 1461
906void 1462void
1463aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1464 PPCODE:
1465{
1466 dREQ;
1467
1468 req->type = EIO_OPEN;
1469 req_set_path1 (req, pathname);
1470 req->int1 = flags;
1471 req->int2 = mode;
1472
1473 REQ_SEND;
1474}
1475
1476void
907aio_close (fh,callback=&PL_sv_undef) 1477aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
908 SV * fh
909 SV * callback
910 PROTOTYPE: $;$
911 ALIAS: 1478 ALIAS:
912 aio_close = REQ_CLOSE
913 aio_fsync = REQ_FSYNC 1479 aio_fsync = EIO_FSYNC
914 aio_fdatasync = REQ_FDATASYNC 1480 aio_fdatasync = EIO_FDATASYNC
1481 aio_syncfs = EIO_SYNCFS
915 PPCODE: 1482 PPCODE:
916{ 1483{
1484 int fd = s_fileno_croak (fh, 0);
917 dREQ; 1485 dREQ;
918 1486
919 req->type = ix; 1487 req->type = ix;
920 req->fh = newSVsv (fh); 1488 req->sv1 = newSVsv (fh);
921 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1489 req->int1 = fd;
922 1490
923 REQ_SEND (req); 1491 REQ_SEND;
924} 1492}
925 1493
926void 1494void
1495aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1496 PPCODE:
1497{
1498 int fd = s_fileno_croak (fh, 0);
1499 dREQ;
1500
1501 req->type = EIO_SYNC_FILE_RANGE;
1502 req->sv1 = newSVsv (fh);
1503 req->int1 = fd;
1504 req->offs = offset;
1505 req->size = nbytes;
1506 req->int2 = flags;
1507
1508 REQ_SEND;
1509}
1510
1511void
1512aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1513 PPCODE:
1514{
1515 int fd = s_fileno_croak (fh, 0);
1516 dREQ;
1517
1518 req->type = EIO_FALLOCATE;
1519 req->sv1 = newSVsv (fh);
1520 req->int1 = fd;
1521 req->int2 = mode;
1522 req->offs = offset;
1523 req->size = len;
1524
1525 REQ_SEND;
1526}
1527
1528void
1529aio_close (SV *fh, SV *callback = &PL_sv_undef)
1530 PPCODE:
1531{
1532 int fd = s_fileno_croak (fh, 0);
1533 dREQ;
1534#if 0
1535 /* partially duplicate logic in s_fileno */
1536 SvGETMAGIC (fh);
1537
1538 if (SvROK (fh))
1539 {
1540 fh = SvRV (fh);
1541 SvGETMAGIC (fh);
1542 }
1543
1544 if (SvTYPE (fh) == SVt_PVGV)
1545 {
1546 /* perl filehandle */
1547 PerlIOUnix_refcnt_inc (fd);
1548 do_close ((GV *)fh, 1);
1549
1550 req->type = EIO_CLOSE;
1551 req->int1 = fd;
1552 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1553 }
1554 else
1555#endif
1556 {
1557 /* fd number */
1558 req->type = EIO_DUP2;
1559 req->int1 = close_fd;
1560 req->sv2 = newSVsv (fh);
1561 req->int2 = fd;
1562 }
1563
1564 REQ_SEND;
1565}
1566
1567void
1568aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1569 PPCODE:
1570{
1571 int fd = s_fileno_croak (fh, 0);
1572 dREQ;
1573
1574 req->type = EIO_SEEK;
1575 req->sv1 = newSVsv (fh);
1576 req->int1 = fd;
1577 req->offs = SvVAL64 (offset);
1578 req->int2 = whence;
1579
1580 REQ_SEND;
1581}
1582
1583void
927aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1584aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
928 SV * fh
929 UV offset
930 UV length
931 SV * data
932 UV dataoffset
933 SV * callback
934 ALIAS: 1585 ALIAS:
935 aio_read = REQ_READ 1586 aio_read = EIO_READ
936 aio_write = REQ_WRITE 1587 aio_write = EIO_WRITE
937 PROTOTYPE: $$$$$;$
938 PPCODE: 1588 PPCODE:
939{ 1589{
940 aio_req req;
941 STRLEN svlen; 1590 STRLEN svlen;
1591 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
942 char *svptr = SvPVbyte (data, svlen); 1592 char *svptr = SvPVbyte (data, svlen);
943 1593 UV len = SvUV (length);
944 SvUPGRADE (data, SVt_PV);
945 SvPOK_on (data);
946 1594
947 if (dataoffset < 0) 1595 if (dataoffset < 0)
948 dataoffset += svlen; 1596 dataoffset += svlen;
949 1597
950 if (dataoffset < 0 || dataoffset > svlen) 1598 if (dataoffset < 0 || dataoffset > svlen)
951 croak ("data offset outside of string"); 1599 croak ("dataoffset outside of data scalar");
952 1600
953 if (ix == REQ_WRITE) 1601 if (ix == EIO_WRITE)
954 { 1602 {
955 /* write: check length and adjust. */ 1603 /* write: check length and adjust. */
956 if (length < 0 || length + dataoffset > svlen) 1604 if (!SvOK (length) || len + dataoffset > svlen)
957 length = svlen - dataoffset; 1605 len = svlen - dataoffset;
958 } 1606 }
959 else 1607 else
960 { 1608 {
961 /* read: grow scalar as necessary */ 1609 /* read: check type and grow scalar as necessary */
1610 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
962 svptr = SvGROW (data, length + dataoffset); 1611 svptr = sv_grow (data, len + dataoffset + 1);
1612 else if (SvCUR (data) < len + dataoffset)
1613 croak ("length + dataoffset outside of scalar, and cannot grow");
963 } 1614 }
964
965 if (length < 0)
966 croak ("length must not be negative");
967 1615
968 { 1616 {
969 dREQ; 1617 dREQ;
970 1618
971 req->type = ix; 1619 req->type = ix;
972 req->fh = newSVsv (fh); 1620 req->sv1 = newSVsv (fh);
973 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1621 req->int1 = fd;
974 : IoOFP (sv_2io (fh))); 1622 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
975 req->offset = offset; 1623 req->size = len;
976 req->length = length;
977 req->data = SvREFCNT_inc (data); 1624 req->sv2 = SvREFCNT_inc (data);
978 req->dataptr = (char *)svptr + dataoffset; 1625 req->ptr2 = (char *)svptr + dataoffset;
1626 req->stroffset = dataoffset;
979 1627
980 if (!SvREADONLY (data)) 1628 if (!SvREADONLY (data))
981 { 1629 {
982 SvREADONLY_on (data); 1630 SvREADONLY_on (data);
983 req->data2ptr = (void *)data; 1631 req->flags |= FLAG_SV2_RO_OFF;
984 } 1632 }
985 1633
986 REQ_SEND; 1634 REQ_SEND;
987 } 1635 }
988} 1636}
989 1637
990void 1638void
991aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1639aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
992 SV * out_fh 1640 ALIAS:
993 SV * in_fh 1641 aio_ioctl = EIO_IOCTL
994 UV in_offset 1642 aio_fcntl = EIO_FCNTL
995 UV length
996 SV * callback
997 PROTOTYPE: $$$$;$
998 PPCODE: 1643 PPCODE:
999{ 1644{
1000 dREQ; 1645 int fd = s_fileno_croak (fh, 0);
1646 char *svptr;
1001 1647
1002 req->type = REQ_SENDFILE; 1648 if (SvPOK (arg) || !SvNIOK (arg))
1003 req->fh = newSVsv (out_fh);
1004 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1005 req->fh2 = newSVsv (in_fh);
1006 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1007 req->offset = in_offset;
1008 req->length = length;
1009
1010 REQ_SEND;
1011}
1012
1013void
1014aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1015 SV * fh
1016 UV offset
1017 IV length
1018 SV * callback
1019 PROTOTYPE: $$$;$
1020 PPCODE:
1021{
1022 dREQ;
1023
1024 req->type = REQ_READAHEAD;
1025 req->fh = newSVsv (fh);
1026 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1027 req->offset = offset;
1028 req->length = length;
1029
1030 REQ_SEND;
1031}
1032
1033void
1034aio_stat (fh_or_path,callback=&PL_sv_undef)
1035 SV * fh_or_path
1036 SV * callback
1037 ALIAS:
1038 aio_stat = REQ_STAT
1039 aio_lstat = REQ_LSTAT
1040 PPCODE:
1041{
1042 dREQ;
1043
1044 New (0, req->statdata, 1, Stat_t);
1045 if (!req->statdata)
1046 { 1649 {
1047 req_free (req); 1650 STRLEN svlen;
1048 croak ("out of memory during aio_req->statdata allocation"); 1651 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1049 } 1652#ifdef IOCPARM_LEN
1653 STRLEN need = IOCPARM_LEN (request);
1654#else
1655 STRLEN need = 256;
1656#endif
1050 1657
1051 if (SvPOK (fh_or_path)) 1658 if (svlen < need)
1052 { 1659 svptr = SvGROW (arg, need);
1053 req->type = ix;
1054 req->data = newSVsv (fh_or_path);
1055 req->dataptr = SvPVbyte_nolen (req->data);
1056 } 1660 }
1057 else 1661 else
1662 svptr = (char *)SvIV (arg);
1663
1058 { 1664 {
1665 dREQ;
1666
1059 req->type = REQ_FSTAT; 1667 req->type = ix;
1060 req->fh = newSVsv (fh_or_path); 1668 req->sv1 = newSVsv (fh);
1061 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1669 req->int1 = fd;
1670 req->int2 = (long)request;
1671 req->sv2 = SvREFCNT_inc (arg);
1672 req->ptr2 = svptr;
1673
1674 REQ_SEND;
1062 } 1675 }
1676}
1677
1678void
1679aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1680 ALIAS:
1681 aio_readlink = EIO_READLINK
1682 aio_realpath = EIO_REALPATH
1683 PPCODE:
1684{
1685 dREQ;
1686
1687 req->type = ix;
1688 req_set_path1 (req, pathname);
1063 1689
1064 REQ_SEND; 1690 REQ_SEND;
1065} 1691}
1066 1692
1067void 1693void
1068aio_unlink (pathname,callback=&PL_sv_undef) 1694aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1069 SV * pathname 1695 PPCODE:
1070 SV * callback 1696{
1697 int ifd = s_fileno_croak (in_fh , 0);
1698 int ofd = s_fileno_croak (out_fh, 1);
1699 dREQ;
1700
1701 req->type = EIO_SENDFILE;
1702 req->sv1 = newSVsv (out_fh);
1703 req->int1 = ofd;
1704 req->sv2 = newSVsv (in_fh);
1705 req->int2 = ifd;
1706 req->offs = in_offset;
1707 req->size = length;
1708
1709 REQ_SEND;
1710}
1711
1712void
1713aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1714 PPCODE:
1715{
1716 int fd = s_fileno_croak (fh, 0);
1717 dREQ;
1718
1719 req->type = EIO_READAHEAD;
1720 req->sv1 = newSVsv (fh);
1721 req->int1 = fd;
1722 req->offs = offset;
1723 req->size = length;
1724
1725 REQ_SEND;
1726}
1727
1728void
1729aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1071 ALIAS: 1730 ALIAS:
1731 aio_stat = EIO_STAT
1732 aio_lstat = EIO_LSTAT
1733 aio_statvfs = EIO_STATVFS
1734 PPCODE:
1735{
1736 dREQ;
1737
1738 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1739
1740 REQ_SEND;
1741}
1742
1743void
1744st_xtime ()
1745 ALIAS:
1746 st_atime = 0x01
1747 st_mtime = 0x02
1748 st_ctime = 0x04
1749 st_btime = 0x08
1750 st_xtime = 0x0f
1751 PPCODE:
1752 EXTEND (SP, 4);
1753 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1754 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1755 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1756 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1757
1758void
1759st_xtimensec ()
1760 ALIAS:
1761 st_atimensec = 0x01
1762 st_mtimensec = 0x02
1763 st_ctimensec = 0x04
1764 st_btimensec = 0x08
1765 st_xtimensec = 0x0f
1766 st_btimesec = 0x10
1767 st_gen = 0x20
1768 PPCODE:
1769 EXTEND (SP, 4);
1770 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1771 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1772 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1773 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1774 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1775 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1776
1777UV
1778major (UV dev)
1779 ALIAS:
1780 minor = 1
1781 CODE:
1782 RETVAL = ix ? minor (dev) : major (dev);
1783 OUTPUT:
1784 RETVAL
1785
1786UV
1787makedev (UV maj, UV min)
1788 CODE:
1789 RETVAL = makedev (maj, min);
1790 OUTPUT:
1791 RETVAL
1792
1793void
1794aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1795 PPCODE:
1796{
1797 dREQ;
1798
1799 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1800 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1801 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1802
1803 REQ_SEND;
1804}
1805
1806void
1807aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1808 PPCODE:
1809{
1810 dREQ;
1811
1812 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1813 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1814
1815 REQ_SEND;
1816}
1817
1818void
1819aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1820 PPCODE:
1821{
1822 dREQ;
1823
1824 req->int2 = mode;
1825 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1826
1827 REQ_SEND;
1828}
1829
1830void
1831aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1832 PPCODE:
1833{
1834 dREQ;
1835
1836 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1837 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1838 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1839
1840 REQ_SEND;
1841}
1842
1843void
1844aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1845 PPCODE:
1846{
1847 dREQ;
1848
1849 req->type = EIO_READDIR;
1850 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1851
1852 if (flags & EIO_READDIR_DENTS)
1853 req->int1 |= EIO_READDIR_CUSTOM2;
1854
1855 req_set_path1 (req, pathname);
1856
1857 REQ_SEND;
1858}
1859
1860void
1861aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1862 PPCODE:
1863{
1864 dREQ;
1865
1866 req->type = EIO_MKDIR;
1867 req->int2 = mode;
1868 req_set_path1 (req, pathname);
1869
1870 REQ_SEND;
1871}
1872
1873void
1874aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1875 ALIAS:
1072 aio_unlink = REQ_UNLINK 1876 aio_unlink = EIO_UNLINK
1073 aio_rmdir = REQ_RMDIR 1877 aio_rmdir = EIO_RMDIR
1074 aio_readdir = REQ_READDIR 1878 aio_readdir = EIO_READDIR
1075 PPCODE: 1879 PPCODE:
1076{ 1880{
1077 dREQ; 1881 dREQ;
1078 1882
1079 req->type = ix; 1883 req->type = ix;
1080 req->data = newSVsv (pathname); 1884 req_set_path1 (req, pathname);
1081 req->dataptr = SvPVbyte_nolen (req->data); 1885
1082
1083 REQ_SEND; 1886 REQ_SEND;
1084} 1887}
1085 1888
1086void 1889void
1087aio_link (oldpath,newpath,callback=&PL_sv_undef) 1890aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1088 SV * oldpath
1089 SV * newpath
1090 SV * callback
1091 ALIAS: 1891 ALIAS:
1092 aio_link = REQ_LINK 1892 aio_link = EIO_LINK
1093 aio_symlink = REQ_SYMLINK 1893 aio_symlink = EIO_SYMLINK
1094 aio_rename = REQ_RENAME 1894 aio_rename = EIO_RENAME
1095 PPCODE: 1895 PPCODE:
1096{ 1896{
1897 eio_wd wd2 = 0;
1097 dREQ; 1898 dREQ;
1098 1899
1099 req->type = ix; 1900 req->type = ix;
1100 req->fh = newSVsv (oldpath); 1901 req_set_path1 (req, oldpath);
1101 req->data2ptr = SvPVbyte_nolen (req->fh); 1902 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1102 req->data = newSVsv (newpath); 1903 req->int3 = (long)wd2;
1103 req->dataptr = SvPVbyte_nolen (req->data);
1104 1904
1105 REQ_SEND; 1905 REQ_SEND;
1106} 1906}
1107 1907
1108#if 0
1109
1110# undocumented, because it does not cancel active requests
1111void 1908void
1112cancel_most_requests () 1909aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1113 PROTOTYPE: 1910 PPCODE:
1911{
1912 eio_wd wd2 = 0;
1913 dREQ;
1914
1915 req->type = EIO_RENAME;
1916 req_set_path1 (req, oldpath);
1917 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1918 req->int2 = flags;
1919 req->int3 = (long)wd2;
1920
1921 REQ_SEND;
1922}
1923
1924void
1925aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1926 PPCODE:
1927{
1928 dREQ;
1929
1930 req->type = EIO_MKNOD;
1931 req->int2 = (mode_t)mode;
1932 req->offs = dev;
1933 req_set_path1 (req, pathname);
1934
1935 REQ_SEND;
1936}
1937
1938void
1939aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1940 ALIAS:
1941 aio_mtouch = EIO_MTOUCH
1942 aio_msync = EIO_MSYNC
1114 CODE: 1943 PPCODE:
1115{ 1944{
1116 aio_req *req; 1945 STRLEN svlen;
1946 char *svptr = SvPVbyte (data, svlen);
1947 UV len = SvUV (length);
1117 1948
1118 pthread_mutex_lock (&reqlock); 1949 if (flags < 0)
1119 for (req = reqs; req; req = req->next) 1950 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1951
1952 if (offset < 0)
1953 offset += svlen;
1954
1955 if (offset < 0 || offset > svlen)
1956 croak ("offset outside of scalar");
1957
1958 if (!SvOK (length) || len + offset > svlen)
1959 len = svlen - offset;
1960
1961 {
1962 dREQ;
1963
1964 req->type = ix;
1965 req->sv2 = SvREFCNT_inc (data);
1966 req->ptr2 = (char *)svptr + offset;
1967 req->size = len;
1968 req->int1 = flags;
1969
1970 REQ_SEND;
1971 }
1972}
1973
1974void
1975aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1976 PPCODE:
1977{
1978 STRLEN svlen;
1979 char *svptr = SvPVbyte (data, svlen);
1980 UV len = SvUV (length);
1981
1982 if (offset < 0)
1983 offset += svlen;
1984
1985 if (offset < 0 || offset > svlen)
1986 croak ("offset outside of scalar");
1987
1988 if (!SvOK (length) || len + offset > svlen)
1989 len = svlen - offset;
1990
1991 {
1992 dREQ;
1993
1994 req->type = EIO_MLOCK;
1995 req->sv2 = SvREFCNT_inc (data);
1996 req->ptr2 = (char *)svptr + offset;
1997 req->size = len;
1998
1999 REQ_SEND;
2000 }
2001}
2002
2003void
2004aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2005 PPCODE:
2006{
2007 dREQ;
2008
2009 req->type = EIO_MLOCKALL;
2010 req->int1 = flags;
2011
2012 REQ_SEND;
2013}
2014
2015void
2016aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2017 PPCODE:
2018{
2019 int fd = s_fileno_croak (fh, 0);
2020 dREQ;
2021
2022 req->type = EIO_CUSTOM;
2023 req->sv1 = newSVsv (fh);
2024 req->int1 = fd;
2025
2026 req->feed = fiemap;
2027#if HAVE_FIEMAP
2028 /* keep our fingers crossed that the next two types are 64 bit */
2029 req->offs = start;
2030 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2031 req->int2 = flags;
2032 req->int3 = SvOK (count) ? SvIV (count) : -1;
2033#endif
2034
2035 REQ_SEND;
2036}
2037
2038void
2039aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
2040 PPCODE:
2041{
2042 char *svptr = 0;
2043
2044 sv_clear_foreign (data);
2045
2046 if (length) /* known length, directly read into scalar */
2047 {
2048 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2049 svptr = sv_grow (data, length + 1);
2050 else if (SvCUR (data) < length)
2051 croak ("length outside of scalar, and cannot grow");
2052 else
2053 svptr = SvPVbyte_nolen (data);
2054 }
2055
2056 {
2057 dREQ;
2058
2059 req->type = EIO_SLURP;
2060 req_set_path1 (req, pathname);
2061 req->offs = offset;
2062 req->size = length;
2063 req->sv2 = SvREFCNT_inc (data);
2064 req->ptr2 = svptr;
2065
2066 if (!SvREADONLY (data))
2067 {
2068 SvREADONLY_on (data);
1120 req->flags |= 1; 2069 req->flags |= FLAG_SV2_RO_OFF;
1121 pthread_mutex_unlock (&reqlock); 2070 }
1122 2071
1123 pthread_mutex_lock (&reslock); 2072 REQ_SEND;
1124 for (req = ress; req; req = req->next) 2073 }
1125 req->flags |= 1;
1126 pthread_mutex_unlock (&reslock);
1127} 2074}
1128 2075
1129#endif 2076void
2077aio_busy (double delay, SV *callback = &PL_sv_undef)
2078 PPCODE:
2079{
2080 dREQ;
2081
2082 req->type = EIO_BUSY;
2083 req->nv1 = delay < 0. ? 0. : delay;
2084
2085 REQ_SEND;
2086}
2087
2088void
2089aio_group (SV *callback = &PL_sv_undef)
2090 PPCODE:
2091{
2092 dREQ;
2093
2094 req->type = EIO_GROUP;
2095
2096 PUTBACK;
2097 req_submit (req);
2098 SPAGAIN;
2099
2100 XPUSHs (req_sv (req, aio_grp_stash));
2101}
2102
2103void
2104aio_nop (SV *callback = &PL_sv_undef)
2105 ALIAS:
2106 aio_nop = EIO_NOP
2107 aio_sync = EIO_SYNC
2108 PPCODE:
2109{
2110 dREQ;
2111
2112 req->type = ix;
2113
2114 REQ_SEND;
2115}
2116
2117int
2118aioreq_pri (int pri = NO_INIT)
2119 CODE:
2120 RETVAL = next_pri;
2121 if (items > 0)
2122 {
2123 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
2124 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
2125 next_pri = pri;
2126 }
2127 OUTPUT:
2128 RETVAL
2129
2130void
2131aioreq_nice (int nice = 0)
2132 CODE:
2133 nice = next_pri - nice;
2134 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
2135 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
2136 next_pri = nice;
1130 2137
1131void 2138void
1132flush () 2139flush ()
1133 PROTOTYPE:
1134 CODE: 2140 CODE:
1135 while (nreqs) 2141 while (eio_nreqs ())
1136 { 2142 {
1137 poll_wait (); 2143 poll_wait ();
1138 poll_cb (); 2144 poll_cb ();
1139 } 2145 }
1140 2146
1141void 2147int
1142poll() 2148poll ()
1143 PROTOTYPE:
1144 CODE: 2149 CODE:
1145 if (nreqs)
1146 {
1147 poll_wait (); 2150 poll_wait ();
1148 poll_cb (); 2151 RETVAL = poll_cb ();
1149 }
1150
1151int
1152poll_fileno()
1153 PROTOTYPE:
1154 CODE:
1155 RETVAL = respipe [0];
1156 OUTPUT: 2152 OUTPUT:
1157 RETVAL 2153 RETVAL
1158 2154
1159int 2155int
2156poll_fileno ()
2157 CODE:
2158 RETVAL = s_epipe_fd (&respipe);
2159 OUTPUT:
2160 RETVAL
2161
2162int
1160poll_cb(...) 2163poll_cb (...)
1161 PROTOTYPE: 2164 PROTOTYPE:
1162 CODE: 2165 CODE:
1163 RETVAL = poll_cb (); 2166 RETVAL = poll_cb ();
1164 OUTPUT: 2167 OUTPUT:
1165 RETVAL 2168 RETVAL
1166 2169
1167void 2170void
1168poll_wait() 2171poll_wait ()
2172 CODE:
2173 poll_wait ();
2174
2175int
2176nreqs ()
2177 CODE:
2178 RETVAL = eio_nreqs ();
2179 OUTPUT:
2180 RETVAL
2181
2182int
2183nready ()
2184 CODE:
2185 RETVAL = eio_nready ();
2186 OUTPUT:
2187 RETVAL
2188
2189int
2190npending ()
2191 CODE:
2192 RETVAL = eio_npending ();
2193 OUTPUT:
2194 RETVAL
2195
2196int
2197nthreads ()
2198 CODE:
2199 RETVAL = eio_nthreads ();
2200 OUTPUT:
2201 RETVAL
2202
2203int
2204fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2205 CODE:
2206 RETVAL = posix_fadvise (fh, offset, length, advice);
2207 OUTPUT:
2208 RETVAL
2209
2210IV
2211sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2212 CODE:
2213 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2214 OUTPUT:
2215 RETVAL
2216
2217void
2218mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2219 PPCODE:
2220 sv_clear_foreign (scalar);
2221{
2222 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2223 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2224 if (addr == (void *)-1)
2225 XSRETURN_NO;
2226
2227 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2228
2229 if (!(prot & PROT_WRITE))
2230 SvREADONLY_on (scalar);
2231
2232 XSRETURN_YES;
2233}
2234
2235void
2236munmap (SV *scalar)
2237 CODE:
2238 sv_clear_foreign (scalar);
2239
2240SV *
2241mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2242 CODE:
2243{
2244 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2245 void *new;
2246
2247 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2248 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2249
2250 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2251
2252 RETVAL = &PL_sv_no;
2253
2254 if (new != (void *)-1)
2255 {
2256 RETVAL = new == (void *)mg->mg_ptr
2257 ? newSVpvn ("0 but true", 10)
2258 : &PL_sv_yes;
2259
2260 mg->mg_ptr = (char *)new;
2261 mg->mg_obj = (SV *)new_length;
2262
2263 SvPVX (scalar) = mg->mg_ptr;
2264 SvCUR_set (scalar, new_length);
2265 }
2266}
2267 OUTPUT:
2268 RETVAL
2269
2270int
2271madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2272 ALIAS:
2273 mprotect = 1
2274 CODE:
2275{
2276 STRLEN svlen;
2277 void *addr = SvPVbyte (scalar, svlen);
2278 STRLEN len = SvUV (length);
2279
2280 if (offset < 0)
2281 offset += svlen;
2282
2283 if (offset < 0 || offset > svlen)
2284 croak ("offset outside of scalar");
2285
2286 if (!SvOK (length) || len + offset > svlen)
2287 len = svlen - offset;
2288
2289 addr = (void *)(((intptr_t)addr) + offset);
2290 eio_page_align (&addr, &len);
2291
2292 switch (ix)
2293 {
2294 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2295 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2296 }
2297}
2298 OUTPUT:
2299 RETVAL
2300
2301int
2302munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2303 CODE:
2304{
2305 STRLEN svlen;
2306 void *addr = SvPVbyte (scalar, svlen);
2307 size_t len = SvUV (length);
2308
2309 if (offset < 0)
2310 offset += svlen;
2311
2312 if (offset < 0 || offset > svlen)
2313 croak ("offset outside of scalar");
2314
2315 if (!SvOK (length) || len + offset > svlen)
2316 len = svlen - offset;
2317
2318 addr = (void *)(((intptr_t)addr) + offset);
2319 eio_page_align (&addr, &len);
2320#if _POSIX_MEMLOCK_RANGE
2321 RETVAL = munlock (addr, len);
2322#else
2323 RETVAL = EIO_ENOSYS ();
2324#endif
2325}
2326 OUTPUT:
2327 RETVAL
2328
2329int
2330mlockall (int flags)
2331 PROTOTYPE: $;
2332 CODE:
2333 RETVAL = eio_mlockall_sync (flags);
2334 OUTPUT:
2335 RETVAL
2336
2337int
2338munlockall ()
2339 CODE:
2340#if _POSIX_MEMLOCK
2341 munlockall ();
2342#else
2343 RETVAL = EIO_ENOSYS ();
2344#endif
2345 OUTPUT:
2346 RETVAL
2347
2348int
2349statx (SV8 *pathname, int flags, UV mask)
2350 CODE:
2351{
2352 /* undocumented, and might go away, and anyway, should use eio_statx */
2353 SV *wdsv = 0;
2354 SV *pathsv = 0;
2355 eio_wd wd = EIO_CWD;
2356 void *ptr;
2357 int res;
2358
2359 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2360 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2361
2362 SvREFCNT_dec (pathsv);
2363 SvREFCNT_dec (wdsv);
2364}
2365 OUTPUT:
2366 RETVAL
2367
2368U32
2369stx_mode ()
1169 PROTOTYPE: 2370 PROTOTYPE:
1170 CODE: 2371 CODE:
1171 if (nreqs) 2372#if HAVE_STATX
1172 poll_wait (); 2373 RETVAL = stx.stx_mode;
2374#else
2375 XSRETURN_UNDEF;
2376#endif
2377 OUTPUT:
2378 RETVAL
2379
2380#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2381#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2382#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2383#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2384#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2385#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2386#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2387#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2388#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2389#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2390#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2391#define STATX_OFFSET_size statx_offsetof (stx_size)
2392#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2393#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2394#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2395#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2396#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2397#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2398
2399U32
2400stx_mask ()
2401 PROTOTYPE:
2402 ALIAS:
2403 stx_mask = STATX_OFFSET_mask
2404 stx_blksize = STATX_OFFSET_blksize
2405 stx_nlink = STATX_OFFSET_nlink
2406 stx_uid = STATX_OFFSET_uid
2407 stx_gid = STATX_OFFSET_gid
2408 stx_rdev_major = STATX_OFFSET_rdev_major
2409 stx_rdev_minor = STATX_OFFSET_rdev_minor
2410 stx_dev_major = STATX_OFFSET_dev_major
2411 stx_dev_minor = STATX_OFFSET_dev_minor
2412 CODE:
2413#if HAVE_STATX
2414 RETVAL = *(__u32 *)((char *)&stx + ix);
2415#else
2416 XSRETURN_UNDEF;
2417#endif
2418 OUTPUT:
2419 RETVAL
2420
2421VAL64
2422stx_attributes ()
2423 PROTOTYPE:
2424 ALIAS:
2425 stx_attributes = STATX_OFFSET_attributes
2426 stx_ino = STATX_OFFSET_ino
2427 stx_size = STATX_OFFSET_size
2428 stx_blocks = STATX_OFFSET_blocks
2429 stx_attributes_mask = STATX_OFFSET_attributes_mask
2430 CODE:
2431#if HAVE_STATX
2432 RETVAL = *(__u64 *)((char *)&stx + ix);
2433#else
2434 XSRETURN_UNDEF;
2435#endif
2436 OUTPUT:
2437 RETVAL
2438
2439NV
2440stx_atime ()
2441 PROTOTYPE:
2442 ALIAS:
2443 stx_atime = STATX_OFFSET_atime
2444 stx_btime = STATX_OFFSET_btime
2445 stx_ctime = STATX_OFFSET_ctime
2446 stx_mtime = STATX_OFFSET_mtime
2447 CODE:
2448#if HAVE_STATX
2449 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2450 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2451#else
2452 XSRETURN_UNDEF;
2453#endif
2454 OUTPUT:
2455 RETVAL
2456
2457VAL64
2458stx_atimesec ()
2459 PROTOTYPE:
2460 ALIAS:
2461 stx_atimesec = STATX_OFFSET_atime
2462 stx_btimesec = STATX_OFFSET_btime
2463 stx_ctimesec = STATX_OFFSET_ctime
2464 stx_mtimesec = STATX_OFFSET_mtime
2465 CODE:
2466#if HAVE_STATX
2467 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2468 RETVAL = ts->tv_sec;
2469#else
2470 XSRETURN_UNDEF;
2471#endif
2472 OUTPUT:
2473 RETVAL
2474
2475U32
2476stx_atimensec ()
2477 PROTOTYPE:
2478 ALIAS:
2479 stx_atimensec = STATX_OFFSET_atime
2480 stx_btimensec = STATX_OFFSET_btime
2481 stx_ctimensec = STATX_OFFSET_ctime
2482 stx_mtimensec = STATX_OFFSET_mtime
2483 CODE:
2484#if HAVE_STATX
2485 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2486 RETVAL = ts->tv_nsec;
2487#else
2488 RETVAL = 0;
2489#endif
2490 OUTPUT:
2491 RETVAL
1173 2492
1174int 2493int
1175nreqs() 2494splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2495 CODE:
2496{
2497#if HAVE_LINUX_SPLICE
2498 loff_t off_in_, off_out_;
2499 RETVAL = splice (
2500 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2501 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2502 length, flags
2503 );
2504#else
2505 RETVAL = EIO_ENOSYS ();
2506#endif
2507}
2508 OUTPUT:
2509 RETVAL
2510
2511int
2512tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2513 CODE:
2514#if HAVE_LINUX_SPLICE
2515 RETVAL = tee (rfh, wfh, length, flags);
2516#else
2517 RETVAL = EIO_ENOSYS ();
2518#endif
2519 OUTPUT:
2520 RETVAL
2521
2522int
2523pipesize (aio_rfd rfh, int new_size = -1)
2524 PROTOTYPE: $;$
2525 CODE:
2526#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2527 if (new_size >= 0)
2528 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2529 else
2530 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2531#else
2532 errno = ENOSYS;
2533 RETVAL = -1;
2534#endif
2535 OUTPUT:
2536 RETVAL
2537
2538void
2539pipe2 (int flags = 0)
1176 PROTOTYPE: 2540 PROTOTYPE: ;$
2541 PPCODE:
2542{
2543 int fd[2];
2544 int res;
2545
2546 if (flags)
2547#if HAVE_PIPE2
2548 res = pipe2 (fd, flags);
2549#else
2550 res = (errno = ENOSYS, -1);
2551#endif
2552 else
2553 res = pipe (fd);
2554
2555 if (!res)
2556 {
2557 EXTEND (SP, 2);
2558 PUSHs (newmortalFH (fd[0], O_RDONLY));
2559 PUSHs (newmortalFH (fd[1], O_WRONLY));
2560 }
2561}
2562
2563void
2564eventfd (unsigned int initval = 0, int flags = 0)
2565 PPCODE:
2566{
2567 int fd;
2568#if HAVE_EVENTFD
2569 fd = eventfd (initval, flags);
2570#else
2571 fd = (errno = ENOSYS, -1);
2572#endif
2573
2574 XPUSHs (newmortalFH (fd, O_RDWR));
2575}
2576
2577void
2578timerfd_create (int clockid, int flags = 0)
2579 PPCODE:
2580{
2581 int fd;
2582#if HAVE_TIMERFD
2583 fd = timerfd_create (clockid, flags);
2584#else
2585 fd = (errno = ENOSYS, -1);
2586#endif
2587
2588 XPUSHs (newmortalFH (fd, O_RDWR));
2589}
2590
2591void
2592timerfd_settime (SV *fh, int flags, NV interval, NV value)
2593 PPCODE:
2594{
2595 int fd = s_fileno_croak (fh, 0);
2596#if HAVE_TIMERFD
2597 int res;
2598 struct itimerspec its, ots;
2599
2600 ts_set (&its.it_interval, interval);
2601 ts_set (&its.it_value , value);
2602 res = timerfd_settime (fd, flags, &its, &ots);
2603
2604 if (!res)
2605 {
2606 EXTEND (SP, 2);
2607 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2608 PUSHs (newSVnv (ts_get (&ots.it_value)));
2609 }
2610#else
2611 errno = ENOSYS;
2612#endif
2613}
2614
2615void
2616timerfd_gettime (SV *fh)
2617 PPCODE:
2618{
2619 int fd = s_fileno_croak (fh, 0);
2620#if HAVE_TIMERFD
2621 int res;
2622 struct itimerspec ots;
2623 res = timerfd_gettime (fd, &ots);
2624
2625 if (!res)
2626 {
2627 EXTEND (SP, 2);
2628 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2629 PUSHs (newSVnv (ts_get (&ots.it_value)));
2630 }
2631#else
2632 errno = ENOSYS;
2633#endif
2634}
2635
2636void
2637memfd_create (SV8 *pathname, int flags = 0)
2638 PPCODE:
2639{
2640 int fd;
2641#if HAVE_MEMFD_CREATE
2642 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2643#else
2644 fd = (errno = ENOSYS, -1);
2645#endif
2646
2647 XPUSHs (newmortalFH (fd, O_RDWR));
2648}
2649
2650UV
2651get_fdlimit ()
1177 CODE: 2652 CODE:
1178 RETVAL = nreqs; 2653#if HAVE_RLIMITS
2654 struct rlimit rl;
2655 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2656 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2657#endif
2658 XSRETURN_UNDEF;
1179 OUTPUT: 2659 OUTPUT:
1180 RETVAL 2660 RETVAL
1181 2661
2662void
2663min_fdlimit (UV limit = 0x7fffffffU)
2664 CODE:
2665{
2666#if HAVE_RLIMITS
2667 struct rlimit rl;
2668 rlim_t orig_rlim_max;
2669 UV bit;
2670
2671 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2672 goto fail;
2673
2674 if (rl.rlim_cur == RLIM_INFINITY)
2675 XSRETURN_YES;
2676
2677 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2678
2679 if (rl.rlim_cur < limit)
2680 {
2681 rl.rlim_cur = limit;
2682
2683 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2684 rl.rlim_max = rl.rlim_cur;
2685 }
2686
2687 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2688 XSRETURN_YES;
2689
2690 if (errno == EPERM)
2691 {
2692 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2693 /* our limit overflows a system-wide limit */
2694 /* try an adaptive algorithm, but do not lower the hardlimit */
2695 rl.rlim_max = 0;
2696 for (bit = 0x40000000U; bit; bit >>= 1)
2697 {
2698 rl.rlim_max |= bit;
2699 rl.rlim_cur = rl.rlim_max;
2700
2701 /* nevr decrease the hard limit */
2702 if (rl.rlim_max < orig_rlim_max)
2703 break;
2704
2705 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2706 rl.rlim_max &= ~bit; /* too high, remove bit again */
2707 }
2708
2709 /* now, raise the soft limit to the max permitted */
2710 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2711 {
2712 rl.rlim_cur = rl.rlim_max;
2713 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2714 errno = EPERM;
2715 }
2716 }
2717#endif
2718 fail:
2719 XSRETURN_UNDEF;
2720}
2721
2722void _on_next_submit (SV *cb)
2723 CODE:
2724 SvREFCNT_dec (on_next_submit);
2725 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2726
2727PROTOTYPES: DISABLE
2728
1182MODULE = IO::AIO PACKAGE = IO::AIO::CB 2729MODULE = IO::AIO PACKAGE = IO::AIO::WD
2730
2731BOOT:
2732{
2733 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2734 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2735}
2736
2737void
2738DESTROY (SV *self)
2739 CODE:
2740{
2741 aio_wd wd = SvAIO_WD (self);
2742#if HAVE_AT
2743 {
2744 SV *callback = &PL_sv_undef;
2745 dREQ; /* clobbers next_pri :/ */
2746 next_pri = req->pri; /* restore next_pri */
2747 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2748 req->type = EIO_WD_CLOSE;
2749 req->wd = wd;
2750 REQ_SEND;
2751 }
2752#else
2753 eio_wd_close_sync (wd);
2754#endif
2755}
2756
2757MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1183 2758
1184void 2759void
1185cancel (aio_req_ornot req) 2760cancel (aio_req_ornot req)
1186 PROTOTYPE:
1187 CODE: 2761 CODE:
1188 req->cancelled = 1; 2762 eio_cancel (req);
1189 2763
2764void
2765cb (aio_req_ornot req, SV *callback = NO_INIT)
2766 PPCODE:
2767{
2768 if (GIMME_V != G_VOID)
2769 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2770
2771 if (items > 1)
2772 {
2773 SV *cb_cv = get_cb (callback);
2774
2775 SvREFCNT_dec (req->callback);
2776 req->callback = SvREFCNT_inc (cb_cv);
2777 }
2778}
2779
2780MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2781
2782void
2783add (aio_req grp, ...)
2784 PPCODE:
2785{
2786 int i;
2787
2788 if (grp->int1 == 2)
2789 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2790
2791 for (i = 1; i < items; ++i )
2792 {
2793 aio_req req;
2794
2795 if (GIMME_V != G_VOID)
2796 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2797
2798 req = SvAIO_REQ (ST (i));
2799
2800 if (req)
2801 eio_grp_add (grp, req);
2802 }
2803}
2804
2805void
2806cancel_subs (aio_req_ornot req)
2807 CODE:
2808 req_cancel_subs (req);
2809
2810void
2811result (aio_req grp, ...)
2812 CODE:
2813{
2814 int i;
2815 AV *av;
2816
2817 grp->errorno = errno;
2818
2819 av = newAV ();
2820 av_extend (av, items - 1);
2821
2822 for (i = 1; i < items; ++i )
2823 av_push (av, newSVsv (ST (i)));
2824
2825 SvREFCNT_dec (grp->sv1);
2826 grp->sv1 = (SV *)av;
2827}
2828
2829void
2830errno (aio_req grp, int errorno = errno)
2831 CODE:
2832 grp->errorno = errorno;
2833
2834void
2835limit (aio_req grp, int limit)
2836 CODE:
2837 eio_grp_limit (grp, limit);
2838
2839void
2840feed (aio_req grp, SV *callback = &PL_sv_undef)
2841 CODE:
2842{
2843 SvREFCNT_dec (grp->sv2);
2844 grp->sv2 = newSVsv (callback);
2845 grp->feed = aio_grp_feed;
2846
2847 if (grp->int2 <= 0)
2848 grp->int2 = 2;
2849
2850 eio_grp_limit (grp, grp->int2);
2851}
2852

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