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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.54 by root, Mon Oct 23 00:34:36 2006 UTC vs.
Revision 1.259 by root, Sun Jul 22 20:39:19 2018 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"
7 8
8#include "autoconf/config.h" 9#if !defined mg_findext
9 10# define mg_findext(sv,type,vtbl) mg_find (sv, type)
10#include <pthread.h> 11#endif
11 12
12#include <stddef.h> 13#include <stddef.h>
14#include <stdlib.h>
13#include <errno.h> 15#include <errno.h>
14#include <sys/time.h>
15#include <sys/select.h>
16#include <sys/types.h> 16#include <sys/types.h>
17#include <sys/stat.h> 17#include <sys/stat.h>
18#include <limits.h> 18#include <limits.h>
19#include <unistd.h>
20#include <fcntl.h> 19#include <fcntl.h>
21#include <signal.h>
22#include <sched.h> 20#include <sched.h>
23 21
24#if HAVE_SENDFILE 22#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
25# if __linux
26# include <sys/sendfile.h>
27# elif __freebsd
28# include <sys/socket.h>
29# include <sys/uio.h> 23# include <sys/mman.h>
30# elif __hpux 24#endif
25
26/* the incompetent fool that created musl keeps __linux__, refuses
27 * to implement any linux standard apis, and also has no way to test
28 * for his broken iplementation. don't complain to me if this fails
29 * for you.
30 */
31#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
32# include <linux/fs.h>
33# ifdef FS_IOC_FIEMAP
34# include <linux/types.h>
35# include <linux/fiemap.h>
36# define HAVE_FIEMAP 1
37# endif
38#endif
39
40/* perl namespace pollution */
41#undef VERSION
42
43/* perl stupidly overrides readdir and maybe others */
44/* with thread-unsafe versions, imagine that :( */
45#undef readdir
46#undef opendir
47#undef closedir
48
49#ifdef _WIN32
50
51 // perl overrides all those nice libc functions
52
53 #undef malloc
54 #undef free
55 #undef open
56 #undef read
57 #undef write
58 #undef send
59 #undef recv
60 #undef stat
61 #undef lstat
62 #undef fstat
63 #undef truncate
64 #undef ftruncate
65 #undef open
66 #undef link
67 #undef close
68 #undef unlink
69 #undef mkdir
70 #undef rmdir
71 #undef rename
72 #undef lseek
73 #undef opendir
74 #undef readdir
75 #undef closedir
76 #undef chmod
77 #undef fchmod
78 #undef dup
79 #undef dup2
80 #undef abort
81 #undef pipe
82
83 #define EIO_STRUCT_STAT struct _stati64
84 #define EIO_STRUCT_STATI64
85
86#else
87
31# include <sys/socket.h> 88 #include <sys/time.h>
32# elif __solaris /* not yet */
33# include <sys/sendfile.h> 89 #include <sys/select.h>
90 #include <unistd.h>
91 #include <utime.h>
92 #include <signal.h>
93
94 #define EIO_STRUCT_STAT Stat_t
95
96#endif
97
98/*****************************************************************************/
99
100#if __GNUC__ >= 3
101# define expect(expr,value) __builtin_expect ((expr),(value))
102#else
103# define expect(expr,value) (expr)
104#endif
105
106#define expect_false(expr) expect ((expr) != 0, 0)
107#define expect_true(expr) expect ((expr) != 0, 1)
108
109/*****************************************************************************/
110
111#include "libeio/config.h"
112
113#include "schmorp.h"
114
115#if HAVE_EVENTFD
116# include <sys/eventfd.h>
117#endif
118
119#if HAVE_TIMERFD
120# include <sys/timerfd.h>
121#endif
122
123#if HAVE_RLIMITS
124 #include <sys/time.h>
125 #include <sys/resource.h>
126#endif
127
128typedef SV SV8; /* byte-sv, used for argument-checking */
129typedef int aio_rfd; /* read file desriptor */
130typedef int aio_wfd; /* write file descriptor */
131
132static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
133
134#define EIO_REQ_MEMBERS \
135 SV *callback; \
136 SV *sv1, *sv2; \
137 SV *sv3, *sv4; \
138 STRLEN stroffset; \
139 SV *self;
140
141#define EIO_NO_WRAPPERS 1
142
143#include "libeio/eio.h"
144
145static int req_invoke (eio_req *req);
146#define EIO_FINISH(req) req_invoke (req)
147static void req_destroy (eio_req *grp);
148#define EIO_DESTROY(req) req_destroy (req)
149
150#include "libeio/eio.c"
151
152#if !HAVE_POSIX_FADVISE
153# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
154#endif
155
156#if !HAVE_POSIX_MADVISE
157# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
158#endif
159
160#ifndef MAP_ANONYMOUS
161# ifdef MAP_ANON
162# define MAP_ANONYMOUS MAP_ANON
34# else 163# else
35# error sendfile support requested but not available 164# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
36# endif 165# endif
37#endif 166#endif
38 167
39/* used for struct dirent, AIX doesn't provide it */ 168/* defines all sorts of constants to 0 unless they are already defined */
40#ifndef NAME_MAX 169/* also provides const_iv_ and const_niv_ macros for them */
41# define NAME_MAX 4096 170#include "def0.h"
42#endif
43 171
44#if __ia64 172#ifndef makedev
45# define STACKSIZE 65536 173# define makedev(maj,min) (((maj) << 8) | (min))
174#endif
175#ifndef major
176# define major(dev) ((dev) >> 8)
177#endif
178#ifndef minor
179# define minor(dev) ((dev) & 0xff)
180#endif
181
182#if PAGESIZE <= 0
183# define PAGESIZE sysconf (_SC_PAGESIZE)
184#endif
185
186/*****************************************************************************/
187
188#if !_POSIX_MAPPED_FILES
189# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
190# define munmap(addr,length) EIO_ENOSYS ()
191#endif
192
193#if !_POSIX_MEMORY_PROTECTION
194# define mprotect(addr,len,prot) EIO_ENOSYS ()
195#endif
196
197#if !MREMAP_MAYMOVE
198# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
199#endif
200
201#define FOREIGN_MAGIC PERL_MAGIC_ext
202
203static int ecb_cold
204mmap_free (pTHX_ SV *sv, MAGIC *mg)
205{
206 int old_errno = errno;
207 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
208 errno = old_errno;
209
210 mg->mg_obj = 0; /* just in case */
211
212 SvREADONLY_off (sv);
213
214 if (SvPVX (sv) != mg->mg_ptr)
215 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
216
217 SvCUR_set (sv, 0);
218 SvPVX (sv) = 0;
219 SvOK_off (sv);
220
221 return 0;
222}
223
224static MGVTBL mmap_vtbl = {
225 0, 0, 0, 0, mmap_free
226};
227
228static int ecb_cold
229sysfree_free (pTHX_ SV *sv, MAGIC *mg)
230{
231 free (mg->mg_ptr);
232 mg->mg_obj = 0; /* just in case */
233
234 SvREADONLY_off (sv);
235
236 if (SvPVX (sv) != mg->mg_ptr)
237 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
238
239 SvCUR_set (sv, 0);
240 SvPVX (sv) = 0;
241 SvOK_off (sv);
242
243 return 0;
244}
245
246static MGVTBL sysfree_vtbl = {
247 0, 0, 0, 0, sysfree_free
248};
249
250/*****************************************************************************/
251
252/* helper: set scalar to foreign ptr with custom free */
253static void
254sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
255{
256 sv_force_normal (sv);
257
258 /* we store the length in mg_obj, as namlen is I32 :/ */
259 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
260 ->mg_obj = (SV *)length;
261
262 SvUPGRADE (sv, SVt_PV); /* nop... */
263
264 if (SvLEN (sv))
265 Safefree (SvPVX (sv));
266
267 SvPVX (sv) = (char *)addr;
268 SvCUR_set (sv, length);
269 SvLEN_set (sv, 0);
270 SvPOK_only (sv);
271}
272
273static void
274sv_clear_foreign (SV *sv)
275{
276 /* todo: iterate over magic and only free ours, but of course */
277 /* the perl5porters will call that (correct) behaviour buggy */
278 sv_unmagic (sv, FOREIGN_MAGIC);
279}
280
281/*****************************************************************************/
282
283static void
284fiemap (eio_req *req)
285{
286 req->result = -1;
287
288#if HAVE_FIEMAP
289 /* assume some c99 */
290 struct fiemap *fiemap = 0;
291 size_t end_offset;
292 int count = req->int3;
293
294 req->flags |= EIO_FLAG_PTR1_FREE;
295
296 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
297 /* increase in 3.5kb steps */
298 if (count < 0)
299 count = 8;
300
301 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
302 errno = ENOMEM;
303 if (!fiemap)
304 return;
305
306 req->ptr1 = fiemap;
307
308 fiemap->fm_start = req->offs;
309 fiemap->fm_length = req->size;
310 fiemap->fm_flags = req->int2;
311 fiemap->fm_extent_count = count;
312
313 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
314 return;
315
316 if (req->int3 >= 0 /* not autosizing */
317 || !fiemap->fm_mapped_extents /* no more extents */
318 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
319 goto done;
320
321 /* else we have to loop -
322 * it would be tempting (actually I tried that first) to just query the
323 * number of extents needed, but linux often feels like not returning all
324 * extents, without telling us it left any out. this complicates
325 * this quite a bit.
326 */
327
328 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
329
330 for (;;)
331 {
332 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
333 char scratch[3072];
334 struct fiemap *incmap = (struct fiemap *)scratch;
335
336 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
337 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
338 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
339 incmap->fm_flags = fiemap->fm_flags;
340 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
341
342 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
343 return;
344
345 if (!incmap->fm_mapped_extents)
346 goto done;
347
348 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
349 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
350 errno = ENOMEM;
351 if (!fiemap)
352 return;
353
354 req->ptr1 = fiemap;
355
356 for (count = 0; count < incmap->fm_mapped_extents; ++count)
357 {
358 struct fiemap_extent *e = incmap->fm_extents + count;
359
360 if (e->fe_logical + e->fe_length >= end_offset)
361 goto done;
362
363 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
364
365 if (e->fe_flags & FIEMAP_EXTENT_LAST)
366 goto done;
367
368 }
369 }
370
371done:
372 req->result = 0;
373
46#else 374#else
47# define STACKSIZE 8192 375 errno = ENOSYS;
48#endif 376#endif
377}
378
379/*****************************************************************************/
49 380
50enum { 381enum {
51 REQ_QUIT, 382 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
52 REQ_OPEN, REQ_CLOSE,
53 REQ_READ, REQ_WRITE, REQ_READAHEAD,
54 REQ_SENDFILE,
55 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
56 REQ_FSYNC, REQ_FDATASYNC,
57 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
58 REQ_READDIR,
59 REQ_LINK, REQ_SYMLINK,
60 REQ_GROUP, REQ_NOP,
61 REQ_SLEEP,
62}; 383};
63 384
64#define AIO_REQ_KLASS "IO::AIO::REQ"
65#define AIO_GRP_KLASS "IO::AIO::GRP"
66
67typedef struct aio_cb
68{
69 struct aio_cb *volatile next;
70
71 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
72
73 SV *self; /* the perl counterpart of this request, if any */
74
75 SV *data, *callback;
76 SV *fh, *fh2;
77 void *dataptr, *data2ptr;
78 Stat_t *statdata;
79 off_t offset;
80 size_t length;
81 ssize_t result;
82
83 int type;
84 int fd, fd2;
85 int errorno;
86 STRLEN dataoffset;
87 mode_t mode; /* open */
88 unsigned char cancelled;
89} aio_cb;
90
91typedef aio_cb *aio_req; 385typedef eio_req *aio_req;
92typedef aio_cb *aio_req_ornot; 386typedef eio_req *aio_req_ornot;
387typedef eio_wd aio_wd;
93 388
94static int started, wanted; 389static SV *on_next_submit;
95static volatile int nreqs; 390static int next_pri = EIO_PRI_DEFAULT;
96static int max_outstanding = 1<<30; 391static int max_outstanding;
97static int respipe [2];
98 392
99static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 393static s_epipe respipe;
100static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
101static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
102 394
103static volatile aio_req reqs, reqe; /* queue start, queue end */ 395static void req_destroy (aio_req req);
104static volatile aio_req ress, rese; /* queue start, queue end */
105
106static void req_invoke (aio_req req); 396static void req_cancel (aio_req req);
107static void req_free (aio_req req); 397
398static void
399want_poll (void)
400{
401 /* write a dummy byte to the pipe so fh becomes ready */
402 s_epipe_signal (&respipe);
403}
404
405static void
406done_poll (void)
407{
408 /* read any signals sent by the worker threads */
409 s_epipe_drain (&respipe);
410}
108 411
109/* must be called at most once */ 412/* must be called at most once */
110static SV *req_sv (aio_req req, const char *klass) 413static SV *
414req_sv (aio_req req, HV *stash)
111{ 415{
112 if (!req->self) 416 if (!req->self)
113 { 417 {
114 req->self = (SV *)newHV (); 418 req->self = (SV *)newHV ();
115 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 419 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
116 } 420 }
117 421
118 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 422 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
119} 423}
120 424
121static aio_req SvAIO_REQ (SV *sv) 425static SV *
426newSVaio_wd (aio_wd wd)
427{
428 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
429}
430
431static aio_req
432SvAIO_REQ (SV *sv)
122{ 433{
123 MAGIC *mg; 434 MAGIC *mg;
124 435
125 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 436 if (!SvROK (sv)
437 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
438 || (SvSTASH (SvRV (sv)) != aio_grp_stash
439 && SvSTASH (SvRV (sv)) != aio_req_stash
440 && !sv_derived_from (sv, "IO::AIO::REQ")))
126 croak ("object of class " AIO_REQ_KLASS " expected"); 441 croak ("object of class IO::AIO::REQ expected");
127 442
128 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 443 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
129 444
130 return mg ? (aio_req)mg->mg_ptr : 0; 445 return mg ? (aio_req)mg->mg_ptr : 0;
131} 446}
132 447
448static aio_wd
449SvAIO_WD (SV *sv)
450{
451 if (!SvROK (sv)
452 || SvTYPE (SvRV (sv)) != SVt_PVMG
453 || SvSTASH (SvRV (sv)) != aio_wd_stash)
454 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
455
456 return (aio_wd)(long)SvIVX (SvRV (sv));
457}
458
459static SV *
460newmortalFH (int fd, int flags)
461{
462 if (fd < 0)
463 return &PL_sv_undef;
464
465 GV *gv = (GV *)sv_newmortal ();
466 char sym[64];
467 int symlen;
468
469 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
470 gv_init (gv, aio_stash, sym, symlen, 0);
471
472 symlen = snprintf (
473 sym,
474 sizeof (sym),
475 "%s&=%d",
476 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
477 fd
478 );
479
480 return do_open (gv, sym, symlen, 0, 0, 0, 0)
481 ? (SV *)gv : &PL_sv_undef;
482}
483
484static void
133static void aio_grp_feed (aio_req grp) 485aio_grp_feed (aio_req grp)
134{ 486{
135 while (grp->length < grp->fd2) 487 if (grp->sv2 && SvOK (grp->sv2))
136 { 488 {
137 int old_len = grp->length; 489 dSP;
138 490
139 if (grp->fh2 && SvOK (grp->fh2)) 491 ENTER;
492 SAVETMPS;
493 PUSHMARK (SP);
494 XPUSHs (req_sv (grp, aio_grp_stash));
495 PUTBACK;
496 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
497 SPAGAIN;
498 FREETMPS;
499 LEAVE;
500 }
501}
502
503static void
504req_submit (eio_req *req)
505{
506 eio_submit (req);
507
508 if (expect_false (on_next_submit))
509 {
510 dSP;
511 SV *cb = sv_2mortal (on_next_submit);
512
513 on_next_submit = 0;
514
515 PUSHMARK (SP);
516 PUTBACK;
517 call_sv (cb, G_DISCARD | G_EVAL);
518 }
519}
520
521static int
522req_invoke (eio_req *req)
523{
524 if (req->flags & FLAG_SV2_RO_OFF)
525 SvREADONLY_off (req->sv2);
526
527 if (!EIO_CANCELLED (req) && req->callback)
528 {
529 dSP;
530 static SV *sv_result_cache; /* caches the result integer SV */
531 SV *sv_result;
532
533 ENTER;
534 SAVETMPS;
535 PUSHMARK (SP);
536 EXTEND (SP, 1);
537
538 /* do not recreate the result IV from scratch each time */
539 if (expect_true (sv_result_cache))
140 { 540 {
141 dSP; 541 sv_result = sv_result_cache; sv_result_cache = 0;
142 542 SvIV_set (sv_result, req->result);
143 ENTER; 543 SvIOK_only (sv_result);
144 SAVETMPS;
145 PUSHMARK (SP);
146 XPUSHs (req_sv (grp, AIO_GRP_KLASS));
147 PUTBACK;
148 call_sv (grp->fh2, G_VOID | G_EVAL);
149 SPAGAIN;
150 FREETMPS;
151 LEAVE;
152 } 544 }
153 545 else
154 /* stop if no progress has been made */
155 if (old_len == grp->length)
156 { 546 {
157 SvREFCNT_dec (grp->fh2); 547 sv_result = newSViv (req->result);
158 grp->fh2 = 0; 548 SvREADONLY_on (sv_result);
159 break;
160 } 549 }
550
551 switch (req->type)
552 {
553 case EIO_WD_OPEN:
554 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
555 break;
556
557 case EIO_READDIR:
558 {
559 SV *rv = &PL_sv_undef;
560
561 if (req->result >= 0)
562 {
563 int i;
564 char *names = (char *)req->ptr2;
565 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
566 AV *av = newAV ();
567
568 av_extend (av, req->result - 1);
569
570 for (i = 0; i < req->result; ++i)
571 {
572 if (req->int1 & EIO_READDIR_DENTS)
573 {
574 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
575
576 if (req->int1 & EIO_READDIR_CUSTOM2)
577 {
578 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
579 AV *avent = newAV ();
580
581 av_extend (avent, 2);
582
583 if (!sv_type [ent->type])
584 {
585 sv_type [ent->type] = newSViv (ent->type);
586 SvREADONLY_on (sv_type [ent->type]);
587 }
588
589 av_store (avent, 0, namesv);
590 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
591 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
592
593 av_store (av, i, newRV_noinc ((SV *)avent));
594 }
595 else
596 av_store (av, i, namesv);
597
598 ++ent;
599 }
600 else
601 {
602 SV *name = newSVpv (names, 0);
603 av_store (av, i, name);
604 names += SvCUR (name) + 1;
605 }
606 }
607
608 rv = sv_2mortal (newRV_noinc ((SV *)av));
609 }
610
611 PUSHs (rv);
612
613 if (req->int1 & EIO_READDIR_CUSTOM1)
614 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
615 }
616 break;
617
618 case EIO_OPEN:
619 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
620 break;
621
622 case EIO_STATVFS:
623 case EIO_FSTATVFS:
624 {
625 SV *rv = &PL_sv_undef;
626
627#ifndef _WIN32
628 if (req->result >= 0)
629 {
630 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
631 HV *hv = newHV ();
632 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
633 * chooses to make it a struct.
634 */
635 unsigned long fsid = 0;
636 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
637
638 rv = sv_2mortal (newRV_noinc ((SV *)hv));
639
640 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
641 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
642 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
643 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
644 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
645 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
646 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
647 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
648 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
649 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
650 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
651 }
652#endif
653
654 PUSHs (rv);
655 }
656
657 break;
658
659 case EIO_GROUP:
660 req->int1 = 2; /* mark group as finished */
661
662 if (req->sv1)
663 {
664 int i;
665 AV *av = (AV *)req->sv1;
666
667 EXTEND (SP, AvFILL (av) + 1);
668 for (i = 0; i <= AvFILL (av); ++i)
669 PUSHs (*av_fetch (av, i, 0));
670 }
671 break;
672
673 case EIO_NOP:
674 case EIO_BUSY:
675 break;
676
677 case EIO_READLINK:
678 case EIO_REALPATH:
679 if (req->result > 0)
680 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
681 break;
682
683 case EIO_STAT:
684 case EIO_LSTAT:
685 case EIO_FSTAT:
686 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
687
688 if (!(PL_laststatval = req->result))
689 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
690 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
691
692 PUSHs (sv_result);
693 break;
694
695 case EIO_SEEK:
696 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
697 break;
698
699 case EIO_READ:
700 {
701 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
702 *SvEND (req->sv2) = 0;
703 SvPOK_only (req->sv2);
704 SvSETMAGIC (req->sv2);
705 PUSHs (sv_result);
706 }
707 break;
708
709 case EIO_SLURP:
710 {
711 if (req->result >= 0)
712 {
713 /* if length was originally not known, we steal the malloc'ed memory */
714 if (req->flags & EIO_FLAG_PTR2_FREE)
715 {
716 req->flags &= ~EIO_FLAG_PTR2_FREE;
717 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
718 }
719 else
720 {
721 SvCUR_set (req->sv2, req->result);
722 *SvEND (req->sv2) = 0;
723 SvPOK_only (req->sv2);
724 }
725
726 SvSETMAGIC (req->sv2);
727 }
728
729 PUSHs (sv_result);
730 }
731 break;
732
733 case EIO_CUSTOM:
734 if (req->feed == fiemap)
735 {
736#if HAVE_FIEMAP
737 if (!req->result)
738 {
739 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
740
741 if (fiemap->fm_extent_count)
742 {
743 AV *av = newAV ();
744 int i;
745
746 while (fiemap->fm_mapped_extents)
747 {
748 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
749 AV *ext_av = newAV ();
750
751 av_store (ext_av, 3, newSVuv (extent->fe_flags));
752 av_store (ext_av, 2, newSVval64 (extent->fe_length));
753 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
754 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
755
756 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
757 }
758
759 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
760 }
761 else
762 {
763 SvIV_set (sv_result, fiemap->fm_mapped_extents);
764 PUSHs (sv_result);
765 }
766 }
767#endif
768 }
769 else
770 PUSHs (sv_result);
771 break;
772
773 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
774 if (req->result > 0)
775 SvIV_set (sv_result, 0);
776 /* FALLTHROUGH */
777
778 default:
779 PUSHs (sv_result);
780 break;
781 }
782
783 errno = req->errorno;
784
785 PUTBACK;
786 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
787 SPAGAIN;
788
789 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
790 SvREFCNT_dec (sv_result);
791 else
792 sv_result_cache = sv_result;
793
794 FREETMPS;
795 LEAVE;
796
797 PUTBACK;
161 } 798 }
162}
163 799
164static void aio_grp_dec (aio_req grp) 800 return !!SvTRUE (ERRSV);
165{
166 --grp->length;
167
168 /* call feeder, if applicable */
169 aio_grp_feed (grp);
170
171 /* finish, if done */
172 if (!grp->length && grp->fd)
173 {
174 req_invoke (grp);
175 req_free (grp);
176 }
177} 801}
178 802
179static void poll_wait () 803static void
804req_destroy (aio_req req)
180{ 805{
181 if (nreqs && !ress)
182 {
183 fd_set rfd;
184 FD_ZERO(&rfd);
185 FD_SET(respipe [0], &rfd);
186
187 select (respipe [0] + 1, &rfd, 0, 0, 0);
188 }
189}
190
191static void req_invoke (aio_req req)
192{
193 dSP;
194 int errorno = errno;
195
196 if (req->cancelled || !SvOK (req->callback))
197 return;
198
199 errno = req->errorno;
200
201 ENTER;
202 SAVETMPS;
203 PUSHMARK (SP);
204 EXTEND (SP, 1);
205
206 switch (req->type)
207 {
208 case REQ_READDIR:
209 {
210 SV *rv = &PL_sv_undef;
211
212 if (req->result >= 0)
213 {
214 char *buf = req->data2ptr;
215 AV *av = newAV ();
216
217 while (req->result)
218 {
219 SV *sv = newSVpv (buf, 0);
220
221 av_push (av, sv);
222 buf += SvCUR (sv) + 1;
223 req->result--;
224 }
225
226 rv = sv_2mortal (newRV_noinc ((SV *)av));
227 }
228
229 PUSHs (rv);
230 }
231 break;
232
233 case REQ_OPEN:
234 {
235 /* convert fd to fh */
236 SV *fh;
237
238 PUSHs (sv_2mortal (newSViv (req->result)));
239 PUTBACK;
240 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
241 SPAGAIN;
242
243 fh = SvREFCNT_inc (POPs);
244
245 PUSHMARK (SP);
246 XPUSHs (sv_2mortal (fh));
247 }
248 break;
249
250 case REQ_GROUP:
251 req->fd = 2; /* mark group as finished */
252
253 if (req->data)
254 {
255 int i;
256 AV *av = (AV *)req->data;
257
258 EXTEND (SP, AvFILL (av) + 1);
259 for (i = 0; i <= AvFILL (av); ++i)
260 PUSHs (*av_fetch (av, i, 0));
261 }
262 break;
263
264 case REQ_NOP:
265 case REQ_SLEEP:
266 break;
267
268 default:
269 PUSHs (sv_2mortal (newSViv (req->result)));
270 break;
271 }
272
273
274 PUTBACK;
275 call_sv (req->callback, G_VOID | G_EVAL);
276 SPAGAIN;
277
278 FREETMPS;
279 LEAVE;
280
281 errno = errorno;
282
283 if (SvTRUE (ERRSV))
284 {
285 req_free (req);
286 croak (0);
287 }
288}
289
290static void req_free (aio_req req)
291{
292 if (req->grp)
293 {
294 aio_req grp = req->grp;
295
296 /* unlink request */
297 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
298 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
299
300 if (grp->grp_first == req)
301 grp->grp_first = req->grp_next;
302
303 aio_grp_dec (grp);
304 }
305
306 if (req->self) 806 if (req->self)
307 { 807 {
308 sv_unmagic (req->self, PERL_MAGIC_ext); 808 sv_unmagic (req->self, PERL_MAGIC_ext);
309 SvREFCNT_dec (req->self); 809 SvREFCNT_dec (req->self);
310 } 810 }
311 811
312 SvREFCNT_dec (req->data);
313 SvREFCNT_dec (req->fh); 812 SvREFCNT_dec (req->sv1);
314 SvREFCNT_dec (req->fh2); 813 SvREFCNT_dec (req->sv2);
814 SvREFCNT_dec (req->sv3);
815 SvREFCNT_dec (req->sv4);
315 SvREFCNT_dec (req->callback); 816 SvREFCNT_dec (req->callback);
316 Safefree (req->statdata);
317 817
318 if (req->type == REQ_READDIR && req->result >= 0)
319 free (req->data2ptr);
320
321 Safefree (req); 818 free (req);
322} 819}
323 820
324static void req_cancel (aio_req req) 821static void
822req_cancel_subs (aio_req grp)
325{ 823{
326 req->cancelled = 1;
327
328 if (req->type == REQ_GROUP) 824 if (grp->type != EIO_GROUP)
825 return;
826
827 SvREFCNT_dec (grp->sv2);
828 grp->sv2 = 0;
829
830 eio_grp_cancel (grp);
831}
832
833static void ecb_cold
834create_respipe (void)
835{
836 if (s_epipe_renew (&respipe))
837 croak ("IO::AIO: unable to initialize result pipe");
838}
839
840static void
841poll_wait (void)
842{
843 while (eio_nreqs ())
329 { 844 {
330 aio_req sub; 845 int size;
331 846
332 for (sub = req->grp_first; sub; sub = sub->grp_next) 847 X_LOCK (EIO_POOL->reslock);
333 req_cancel (sub); 848 size = EIO_POOL->res_queue.size;
849 X_UNLOCK (EIO_POOL->reslock);
850
851 if (size)
852 return;
853
854 etp_maybe_start_thread (EIO_POOL);
855
856 s_epipe_wait (&respipe);
334 } 857 }
335} 858}
336 859
337static int poll_cb () 860static int
861poll_cb (void)
338{ 862{
339 dSP;
340 int count = 0;
341 int do_croak = 0;
342 aio_req req;
343
344 for (;;) 863 for (;;)
345 { 864 {
346 pthread_mutex_lock (&reslock); 865 int res = eio_poll ();
347 req = ress;
348 866
349 if (req) 867 if (res > 0)
868 croak (0);
869
870 if (!max_outstanding || max_outstanding > eio_nreqs ())
871 return res;
872
873 poll_wait ();
874 }
875}
876
877static void ecb_cold
878reinit (void)
879{
880 create_respipe ();
881
882 if (eio_init (want_poll, done_poll) < 0)
883 croak ("IO::AIO: unable to initialise eio library");
884}
885
886/*****************************************************************************/
887
888static SV *
889get_cb (SV *cb_sv)
890{
891 SvGETMAGIC (cb_sv);
892 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
893}
894
895static aio_req ecb_noinline
896dreq (SV *callback)
897{
898 SV *cb_cv;
899 aio_req req;
900 int req_pri = next_pri;
901 next_pri = EIO_PRI_DEFAULT;
902
903 cb_cv = get_cb (callback);
904
905 req = calloc (sizeof (*req), 1);
906 if (!req)
907 croak ("out of memory during eio_req allocation");
908
909 req->callback = SvREFCNT_inc (cb_cv);
910 req->pri = req_pri;
911
912 return req;
913}
914
915#define dREQ \
916 aio_req req = dreq (callback); \
917
918#define REQ_SEND \
919 PUTBACK; \
920 req_submit (req); \
921 SPAGAIN; \
922 \
923 if (GIMME_V != G_VOID) \
924 XPUSHs (req_sv (req, aio_req_stash));
925
926ecb_inline void
927req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
928{
929 if (expect_false (SvROK (path)))
930 {
931 SV *rv = SvRV (path);
932 SV *wdob;
933
934 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
350 { 935 {
351 ress = req->next; 936 path = AvARRAY (rv)[1];
937 wdob = AvARRAY (rv)[0];
352 938
353 if (!ress) 939 if (SvOK (wdob))
354 { 940 {
355 /* read any signals sent by the worker threads */ 941 *wd = SvAIO_WD (wdob);
356 char buf [32]; 942 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
357 while (read (respipe [0], buf, 32) == 32)
358 ;
359
360 rese = 0;
361 } 943 }
944 else
945 *wd = EIO_INVALID_WD;
362 } 946 }
363 947 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
364 pthread_mutex_unlock (&reslock);
365
366 if (!req)
367 break;
368
369 --nreqs;
370
371 if (req->type == REQ_QUIT)
372 started--;
373 else if (req->type == REQ_GROUP && req->length)
374 { 948 {
375 req->fd = 1; /* mark request as delayed */ 949 *wd = (aio_wd)(long)SvIVX (rv);
376 continue; 950 *wdsv = SvREFCNT_inc_NN (rv);
951 *ptr = ".";
952 return; /* path set to "." */
377 } 953 }
378 else 954 else
379 { 955 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
380 if (req->type == REQ_READ)
381 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
382
383 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
384 SvREADONLY_off (req->data);
385
386 if (req->statdata)
387 {
388 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
389 PL_laststatval = req->result;
390 PL_statcache = *(req->statdata);
391 }
392
393 req_invoke (req);
394
395 count++;
396 }
397
398 req_free (req);
399 } 956 }
400 957
401 return count; 958 *pathsv = newSVsv (path);
959 *ptr = SvPVbyte_nolen (*pathsv);
402} 960}
403 961
404static void *aio_proc(void *arg); 962static void ecb_noinline
405 963req_set_path1 (aio_req req, SV *path)
406static void start_thread (void)
407{ 964{
408 sigset_t fullsigset, oldsigset; 965 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
409 pthread_t tid;
410 pthread_attr_t attr;
411
412 pthread_attr_init (&attr);
413 pthread_attr_setstacksize (&attr, STACKSIZE);
414 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
415
416 sigfillset (&fullsigset);
417 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
418
419 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
420 started++;
421
422 sigprocmask (SIG_SETMASK, &oldsigset, 0);
423} 966}
424 967
425static void req_send (aio_req req) 968static void ecb_noinline
969req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
426{ 970{
427 while (started < wanted && nreqs >= started) 971 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
428 start_thread ();
429 972
430 ++nreqs; 973 switch (SvTYPE (rv))
431
432 pthread_mutex_lock (&reqlock);
433
434 req->next = 0;
435
436 if (reqe)
437 { 974 {
438 reqe->next = req; 975 case SVt_PVIO:
439 reqe = req; 976 case SVt_PVLV:
977 case SVt_PVGV:
978 req->type = type_fh;
979 req->sv1 = newSVsv (fh_or_path);
980 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
981 break;
982
983 default:
984 req->type = type_path;
985 req_set_path1 (req, fh_or_path);
986 break;
440 } 987 }
441 else
442 reqe = reqs = req;
443
444 pthread_cond_signal (&reqwait);
445 pthread_mutex_unlock (&reqlock);
446
447 if (nreqs > max_outstanding)
448 for (;;)
449 {
450 poll_cb ();
451
452 if (nreqs <= max_outstanding)
453 break;
454
455 poll_wait ();
456 }
457}
458
459static void end_thread (void)
460{
461 aio_req req;
462 Newz (0, req, 1, aio_cb);
463 req->type = REQ_QUIT;
464
465 req_send (req);
466}
467
468static void min_parallel (int nthreads)
469{
470 if (wanted < nthreads)
471 wanted = nthreads;
472}
473
474static void max_parallel (int nthreads)
475{
476 int cur = started;
477
478 if (wanted > nthreads)
479 wanted = nthreads;
480
481 while (cur > wanted)
482 {
483 end_thread ();
484 cur--;
485 }
486
487 while (started > wanted)
488 {
489 poll_wait ();
490 poll_cb ();
491 }
492}
493
494static void create_pipe ()
495{
496 if (pipe (respipe))
497 croak ("unable to initialize result pipe");
498
499 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
500 croak ("cannot set result pipe to nonblocking mode");
501
502 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
503 croak ("cannot set result pipe to nonblocking mode");
504} 988}
505 989
506/*****************************************************************************/ 990/*****************************************************************************/
507/* work around various missing functions */
508 991
509#if !HAVE_PREADWRITE 992static void
510# define pread aio_pread 993ts_set (struct timespec *ts, NV value)
511# define pwrite aio_pwrite
512
513/*
514 * make our pread/pwrite safe against themselves, but not against
515 * normal read/write by using a mutex. slows down execution a lot,
516 * but that's your problem, not mine.
517 */
518static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
519
520static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
521{ 994{
522 ssize_t res; 995 ts->tv_sec = value;
523 off_t ooffset; 996 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
524
525 pthread_mutex_lock (&preadwritelock);
526 ooffset = lseek (fd, 0, SEEK_CUR);
527 lseek (fd, offset, SEEK_SET);
528 res = read (fd, buf, count);
529 lseek (fd, ooffset, SEEK_SET);
530 pthread_mutex_unlock (&preadwritelock);
531
532 return res;
533} 997}
534 998
535static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 999static NV
1000ts_get (const struct timespec *ts)
536{ 1001{
537 ssize_t res; 1002 return ts->tv_sec + ts->tv_nsec * 1e-9;
538 off_t ooffset;
539
540 pthread_mutex_lock (&preadwritelock);
541 ooffset = lseek (fd, 0, SEEK_CUR);
542 lseek (fd, offset, SEEK_SET);
543 res = write (fd, buf, count);
544 lseek (fd, offset, SEEK_SET);
545 pthread_mutex_unlock (&preadwritelock);
546
547 return res;
548} 1003}
549#endif
550 1004
551#if !HAVE_FDATASYNC 1005/*****************************************************************************/
552# define fdatasync fsync
553#endif
554 1006
555#if !HAVE_READAHEAD 1007XS(boot_IO__AIO) ecb_cold;
556# define readahead aio_readahead
557 1008
558static ssize_t readahead (int fd, off_t offset, size_t count) 1009MODULE = IO::AIO PACKAGE = IO::AIO
559{
560 char readahead_buf[4096];
561 1010
562 while (count > 0) 1011PROTOTYPES: ENABLE
563 {
564 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
565 1012
566 pread (fd, readahead_buf, len, offset); 1013BOOT:
567 offset += len;
568 count -= len;
569 }
570
571 errno = 0;
572}
573#endif
574
575#if !HAVE_READDIR_R
576# define readdir_r aio_readdir_r
577
578static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
579
580static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
581{ 1014{
582 struct dirent *e; 1015 static const struct {
583 int errorno; 1016 const char *name;
1017 IV iv;
1018 } *civ, const_iv[] = {
1019# define const_niv(name, value) { # name, (IV) value },
1020# define const_iv(name) { # name, (IV) name },
1021# define const_eio(name) { # name, (IV) EIO_ ## name },
584 1022
585 pthread_mutex_lock (&readdirlock); 1023 /* you have to re-run ./gendef0 after adding/removing any constants here */
1024 /* the first block can be undef if missing */
1025 const_iv (ENOSYS)
1026 const_iv (EXDEV)
1027 const_iv (EBADR)
586 1028
587 e = readdir (dirp); 1029 /* for lseek */
588 errorno = errno; 1030 const_iv (SEEK_DATA)
1031 const_iv (SEEK_HOLE)
589 1032
590 if (e) 1033 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
591 { 1034 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
592 *res = ent; 1035 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
593 strcpy (ent->d_name, e->d_name); 1036 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
594 } 1037 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
595 else 1038 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
596 *res = 0;
597 1039
598 pthread_mutex_unlock (&readdirlock); 1040 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1041 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1042 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1043 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1044 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
599 1045
600 errno = errorno; 1046 /* the second block will be 0 when missing */
601 return e ? 0 : -1; 1047 const_iv (O_ACCMODE)
602}
603#endif
604 1048
605/* sendfile always needs emulation */ 1049 const_iv (O_RDONLY)
606static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) 1050 const_iv (O_WRONLY)
607{ 1051 const_iv (O_RDWR)
608 ssize_t res; 1052 const_iv (O_CREAT)
1053 const_iv (O_TRUNC)
1054 const_iv (O_EXCL)
1055 const_iv (O_APPEND)
609 1056
610 if (!count) 1057 const_iv (O_ASYNC)
611 return 0; 1058 const_iv (O_DIRECT)
1059 const_iv (O_NOATIME)
612 1060
613#if HAVE_SENDFILE 1061 const_iv (O_CLOEXEC)
614# if __linux 1062 const_iv (O_NOCTTY)
615 res = sendfile (ofd, ifd, &offset, count); 1063 const_iv (O_NOFOLLOW)
1064 const_iv (O_NONBLOCK)
1065 const_iv (O_EXEC)
1066 const_iv (O_SEARCH)
1067 const_iv (O_DIRECTORY)
1068 const_iv (O_DSYNC)
1069 const_iv (O_RSYNC)
1070 const_iv (O_SYNC)
1071 const_iv (O_PATH)
1072 const_iv (O_TMPFILE)
1073 const_iv (O_TTY_INIT)
616 1074
617# elif __freebsd 1075 const_iv (S_IFIFO)
618 /* 1076 const_iv (S_IFCHR)
619 * Of course, the freebsd sendfile is a dire hack with no thoughts 1077 const_iv (S_IFBLK)
620 * wasted on making it similar to other I/O functions. 1078 const_iv (S_IFLNK)
621 */ 1079 const_iv (S_IFREG)
622 { 1080 const_iv (S_IFDIR)
623 off_t sbytes; 1081 const_iv (S_IFWHT)
624 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); 1082 const_iv (S_IFSOCK)
1083 const_iv (S_IFMT)
625 1084
626 if (res < 0 && sbytes) 1085 const_iv (ST_RDONLY)
627 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ 1086 const_iv (ST_NOSUID)
628 res = sbytes; 1087 const_iv (ST_NODEV)
1088 const_iv (ST_NOEXEC)
1089 const_iv (ST_SYNCHRONOUS)
1090 const_iv (ST_MANDLOCK)
1091 const_iv (ST_WRITE)
1092 const_iv (ST_APPEND)
1093 const_iv (ST_IMMUTABLE)
1094 const_iv (ST_NOATIME)
1095 const_iv (ST_NODIRATIME)
1096 const_iv (ST_RELATIME)
1097
1098 const_iv (PROT_NONE)
1099 const_iv (PROT_EXEC)
1100 const_iv (PROT_READ)
1101 const_iv (PROT_WRITE)
1102
1103 const_iv (MAP_PRIVATE)
1104 const_iv (MAP_SHARED)
1105 const_iv (MAP_FIXED)
1106 const_iv (MAP_ANONYMOUS)
1107
1108 /* linuxish */
1109 const_iv (MAP_LOCKED)
1110 const_iv (MAP_NORESERVE)
1111 const_iv (MAP_POPULATE)
1112 const_iv (MAP_NONBLOCK)
1113 const_iv (MAP_GROWSDOWN)
1114 const_iv (MAP_32BIT)
1115 const_iv (MAP_HUGETLB)
1116 const_iv (MAP_STACK)
1117
1118 const_iv (MREMAP_MAYMOVE)
1119 const_iv (MREMAP_FIXED)
1120
1121 const_iv (F_DUPFD_CLOEXEC)
1122
1123 const_iv (F_OFD_GETLK)
1124 const_iv (F_OFD_SETLK)
1125 const_iv (F_OFD_GETLKW)
1126
1127 const_iv (FIFREEZE)
1128 const_iv (FITHAW)
1129 const_iv (FITRIM)
1130 const_iv (FICLONE)
1131 const_iv (FICLONERANGE)
1132 const_iv (FIDEDUPERANGE)
1133
1134 const_iv (FS_IOC_GETFLAGS)
1135 const_iv (FS_IOC_SETFLAGS)
1136 const_iv (FS_IOC_GETVERSION)
1137 const_iv (FS_IOC_SETVERSION)
1138 const_iv (FS_IOC_FIEMAP)
1139 const_iv (FS_IOC_FSGETXATTR)
1140 const_iv (FS_IOC_FSSETXATTR)
1141 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1142 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1143 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1144
1145 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1146
1147 const_iv (FS_SECRM_FL)
1148 const_iv (FS_UNRM_FL)
1149 const_iv (FS_COMPR_FL)
1150 const_iv (FS_SYNC_FL)
1151 const_iv (FS_IMMUTABLE_FL)
1152 const_iv (FS_APPEND_FL)
1153 const_iv (FS_NODUMP_FL)
1154 const_iv (FS_NOATIME_FL)
1155 const_iv (FS_DIRTY_FL)
1156 const_iv (FS_COMPRBLK_FL)
1157 const_iv (FS_NOCOMP_FL)
1158 const_iv (FS_ENCRYPT_FL)
1159 const_iv (FS_BTREE_FL)
1160 const_iv (FS_INDEX_FL)
1161 const_iv (FS_JOURNAL_DATA_FL)
1162 const_iv (FS_NOTAIL_FL)
1163 const_iv (FS_DIRSYNC_FL)
1164 const_iv (FS_TOPDIR_FL)
1165 const_iv (FS_FL_USER_MODIFIABLE)
1166
1167 const_iv (FS_XFLAG_REALTIME)
1168 const_iv (FS_XFLAG_PREALLOC)
1169 const_iv (FS_XFLAG_IMMUTABLE)
1170 const_iv (FS_XFLAG_APPEND)
1171 const_iv (FS_XFLAG_SYNC)
1172 const_iv (FS_XFLAG_NOATIME)
1173 const_iv (FS_XFLAG_NODUMP)
1174 const_iv (FS_XFLAG_RTINHERIT)
1175 const_iv (FS_XFLAG_PROJINHERIT)
1176 const_iv (FS_XFLAG_NOSYMLINKS)
1177 const_iv (FS_XFLAG_EXTSIZE)
1178 const_iv (FS_XFLAG_EXTSZINHERIT)
1179 const_iv (FS_XFLAG_NODEFRAG)
1180 const_iv (FS_XFLAG_FILESTREAM)
1181 const_iv (FS_XFLAG_DAX)
1182 const_iv (FS_XFLAG_HASATTR)
1183
1184 const_iv (FIEMAP_FLAG_SYNC)
1185 const_iv (FIEMAP_FLAG_XATTR)
1186 const_iv (FIEMAP_FLAGS_COMPAT)
1187 const_iv (FIEMAP_EXTENT_LAST)
1188 const_iv (FIEMAP_EXTENT_UNKNOWN)
1189 const_iv (FIEMAP_EXTENT_DELALLOC)
1190 const_iv (FIEMAP_EXTENT_ENCODED)
1191 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1192 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1193 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1194 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1195 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1196 const_iv (FIEMAP_EXTENT_MERGED)
1197 const_iv (FIEMAP_EXTENT_SHARED)
1198
1199 const_iv (SPLICE_F_MOVE)
1200 const_iv (SPLICE_F_NONBLOCK)
1201 const_iv (SPLICE_F_MORE)
1202 const_iv (SPLICE_F_GIFT)
1203
1204 const_iv (EFD_CLOEXEC)
1205 const_iv (EFD_NONBLOCK)
1206 const_iv (EFD_SEMAPHORE)
1207
1208 const_iv (CLOCK_REALTIME)
1209 const_iv (CLOCK_MONOTONIC)
1210 const_iv (CLOCK_BOOTTIME)
1211 const_iv (CLOCK_REALTIME_ALARM)
1212 const_iv (CLOCK_BOOTTIME_ALARM)
1213
1214 const_iv (TFD_NONBLOCK)
1215 const_iv (TFD_CLOEXEC)
1216
1217 const_iv (TFD_TIMER_ABSTIME)
1218 const_iv (TFD_TIMER_CANCEL_ON_SET)
1219
1220 /* these are libeio constants, and are independent of gendef0 */
1221 const_eio (SEEK_SET)
1222 const_eio (SEEK_CUR)
1223 const_eio (SEEK_END)
1224
1225 const_eio (MCL_FUTURE)
1226 const_eio (MCL_CURRENT)
1227
1228 const_eio (MS_ASYNC)
1229 const_eio (MS_INVALIDATE)
1230 const_eio (MS_SYNC)
1231
1232 const_eio (MT_MODIFY)
1233
1234 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1235 const_eio (SYNC_FILE_RANGE_WRITE)
1236 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1237
1238 const_eio (FALLOC_FL_KEEP_SIZE)
1239 const_eio (FALLOC_FL_PUNCH_HOLE)
1240 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1241 const_eio (FALLOC_FL_ZERO_RANGE)
1242 const_eio (FALLOC_FL_INSERT_RANGE)
1243 const_eio (FALLOC_FL_UNSHARE_RANGE)
1244
1245 const_eio (RENAME_NOREPLACE)
1246 const_eio (RENAME_EXCHANGE)
1247 const_eio (RENAME_WHITEOUT)
1248
1249 const_eio (READDIR_DENTS)
1250 const_eio (READDIR_DIRS_FIRST)
1251 const_eio (READDIR_STAT_ORDER)
1252 const_eio (READDIR_FOUND_UNKNOWN)
1253
1254 const_eio (DT_UNKNOWN)
1255 const_eio (DT_FIFO)
1256 const_eio (DT_CHR)
1257 const_eio (DT_DIR)
1258 const_eio (DT_BLK)
1259 const_eio (DT_REG)
1260 const_eio (DT_LNK)
1261 const_eio (DT_SOCK)
1262 const_eio (DT_WHT)
629 } 1263 };
630 1264
631# elif __hpux 1265 aio_stash = gv_stashpv ("IO::AIO" , 1);
632 res = sendfile (ofd, ifd, offset, count, 0, 0); 1266 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1267 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1268 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
633 1269
634# elif __solaris 1270 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
635 { 1271 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
636 struct sendfilevec vec;
637 size_t sbytes;
638 1272
639 vec.sfv_fd = ifd; 1273 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
640 vec.sfv_flag = 0;
641 vec.sfv_off = offset;
642 vec.sfv_len = count;
643 1274
644 res = sendfilev (ofd, &vec, 1, &sbytes); 1275 reinit ();
1276}
645 1277
646 if (res < 0 && sbytes) 1278void
1279reinit ()
1280 PROTOTYPE:
1281
1282void
1283max_poll_reqs (unsigned int nreqs)
1284 PROTOTYPE: $
1285 CODE:
1286 eio_set_max_poll_reqs (nreqs);
1287
1288void
1289max_poll_time (double nseconds)
1290 PROTOTYPE: $
1291 CODE:
1292 eio_set_max_poll_time (nseconds);
1293
1294void
1295min_parallel (unsigned int nthreads)
1296 PROTOTYPE: $
1297 CODE:
1298 eio_set_min_parallel (nthreads);
1299
1300void
1301max_parallel (unsigned int nthreads)
1302 PROTOTYPE: $
1303 CODE:
1304 eio_set_max_parallel (nthreads);
1305
1306void
1307max_idle (unsigned int nthreads)
1308 PROTOTYPE: $
1309 CODE:
1310 eio_set_max_idle (nthreads);
1311
1312void
1313idle_timeout (unsigned int seconds)
1314 PROTOTYPE: $
1315 CODE:
1316 eio_set_idle_timeout (seconds);
1317
1318void
1319max_outstanding (unsigned int maxreqs)
1320 PROTOTYPE: $
1321 CODE:
1322 max_outstanding = maxreqs;
1323
1324void
1325aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1326 PPCODE:
1327{
1328 dREQ;
1329
1330 req->type = EIO_WD_OPEN;
1331 req_set_path1 (req, pathname);
1332
1333 REQ_SEND;
1334}
1335
1336void
1337aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1338 PPCODE:
1339{
1340 dREQ;
1341
1342 req->type = EIO_OPEN;
1343 req_set_path1 (req, pathname);
1344 req->int1 = flags;
1345 req->int2 = mode;
1346
1347 REQ_SEND;
1348}
1349
1350void
1351aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1352 ALIAS:
1353 aio_fsync = EIO_FSYNC
1354 aio_fdatasync = EIO_FDATASYNC
1355 aio_syncfs = EIO_SYNCFS
1356 PPCODE:
1357{
1358 int fd = s_fileno_croak (fh, 0);
1359 dREQ;
1360
1361 req->type = ix;
1362 req->sv1 = newSVsv (fh);
1363 req->int1 = fd;
1364
1365 REQ_SEND;
1366}
1367
1368void
1369aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1370 PPCODE:
1371{
1372 int fd = s_fileno_croak (fh, 0);
1373 dREQ;
1374
1375 req->type = EIO_SYNC_FILE_RANGE;
1376 req->sv1 = newSVsv (fh);
1377 req->int1 = fd;
1378 req->offs = offset;
647 res = sbytes; 1379 req->size = nbytes;
648 } 1380 req->int2 = flags;
649 1381
650# endif 1382 REQ_SEND;
1383}
1384
1385void
1386aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1387 PPCODE:
1388{
1389 int fd = s_fileno_croak (fh, 0);
1390 dREQ;
1391
1392 req->type = EIO_FALLOCATE;
1393 req->sv1 = newSVsv (fh);
1394 req->int1 = fd;
1395 req->int2 = mode;
1396 req->offs = offset;
1397 req->size = len;
1398
1399 REQ_SEND;
1400}
1401
1402void
1403aio_close (SV *fh, SV *callback = &PL_sv_undef)
1404 PPCODE:
1405{
1406 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1407 int fd = s_fileno_croak (fh, 0);
1408 dREQ;
1409
1410 if (expect_false (close_fd < 0))
1411 {
1412 int pipefd [2];
1413
1414 if (
1415#ifdef _WIN32
1416 _pipe (pipefd, 1, _O_BINARY) < 0
651#else 1417#else
652 res = -1; 1418 pipe (pipefd) < 0
653 errno = ENOSYS; 1419 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
654#endif 1420#endif
655 1421 || close (pipefd [1]) < 0
656 if (res < 0
657 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
658#if __solaris
659 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
660#endif
661 )
662 )
663 {
664 /* emulate sendfile. this is a major pain in the ass */
665 char buf[4096];
666 res = 0;
667
668 while (count)
669 {
670 ssize_t cnt;
671
672 cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
673
674 if (cnt <= 0)
675 { 1422 )
676 if (cnt && !res) res = -1; 1423 abort (); /*D*/
677 break;
678 }
679 1424
680 cnt = write (ofd, buf, cnt); 1425 close_fd = pipefd [0];
681
682 if (cnt <= 0)
683 {
684 if (cnt && !res) res = -1;
685 break;
686 }
687
688 offset += cnt;
689 res += cnt;
690 count -= cnt;
691 }
692 }
693
694 return res;
695}
696
697/* read a full directory */
698static int scandir_ (const char *path, void **namesp)
699{
700 DIR *dirp = opendir (path);
701 union
702 {
703 struct dirent d;
704 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
705 } u;
706 struct dirent *entp;
707 char *name, *names;
708 int memlen = 4096;
709 int memofs = 0;
710 int res = 0;
711 int errorno;
712
713 if (!dirp)
714 return -1;
715
716 names = malloc (memlen);
717
718 for (;;)
719 {
720 errno = 0, readdir_r (dirp, &u.d, &entp);
721
722 if (!entp)
723 break;
724
725 name = entp->d_name;
726
727 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
728 {
729 int len = strlen (name) + 1;
730
731 res++;
732
733 while (memofs + len > memlen)
734 {
735 memlen *= 2;
736 names = realloc (names, memlen);
737 if (!names)
738 break;
739 }
740
741 memcpy (names + memofs, name, len);
742 memofs += len;
743 }
744 }
745
746 errorno = errno;
747 closedir (dirp);
748
749 if (errorno)
750 {
751 free (names);
752 errno = errorno;
753 res = -1;
754 }
755
756 *namesp = (void *)names;
757 return res;
758}
759
760/*****************************************************************************/
761
762static void *aio_proc (void *thr_arg)
763{
764 aio_req req;
765 int type;
766
767 do
768 {
769 pthread_mutex_lock (&reqlock);
770
771 for (;;)
772 {
773 req = reqs;
774
775 if (reqs)
776 {
777 reqs = reqs->next;
778 if (!reqs) reqe = 0;
779 }
780
781 if (req)
782 break;
783
784 pthread_cond_wait (&reqwait, &reqlock);
785 }
786
787 pthread_mutex_unlock (&reqlock);
788
789 errno = 0; /* strictly unnecessary */
790
791 if (!req->cancelled)
792 switch (type = req->type) /* remember type for QUIT check */
793 {
794 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
795 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
796
797 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
798 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
799
800 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
801 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
802 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
803
804 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
805 case REQ_CLOSE: req->result = close (req->fd); break;
806 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
807 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
808 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
809 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
810 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
811
812 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
813 case REQ_FSYNC: req->result = fsync (req->fd); break;
814 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
815
816 case REQ_SLEEP:
817 {
818 struct timeval tv;
819
820 tv.tv_sec = req->fd;
821 tv.tv_usec = req->fd2;
822
823 req->result = select (0, 0, 0, 0, &tv);
824 }
825
826 case REQ_GROUP: /*TODO: should not be handled here */
827 case REQ_NOP: /*TODO: should not be handled here */
828 case REQ_QUIT:
829 break;
830
831 default:
832 req->result = ENOSYS;
833 break;
834 } 1426 }
835 1427
836 req->errorno = errno; 1428 req->type = EIO_DUP2;
837 1429 req->int1 = close_fd;
838 pthread_mutex_lock (&reslock); 1430 req->sv2 = newSVsv (fh);
839
840 req->next = 0; 1431 req->int2 = fd;
841 1432
842 if (rese) 1433 REQ_SEND;
843 {
844 rese->next = req;
845 rese = req;
846 }
847 else
848 {
849 rese = ress = req;
850
851 /* write a dummy byte to the pipe so fh becomes ready */
852 write (respipe [1], &respipe, 1);
853 }
854
855 pthread_mutex_unlock (&reslock);
856 }
857 while (type != REQ_QUIT);
858
859 return 0;
860} 1434}
861 1435
862/*****************************************************************************/
863
864static void atfork_prepare (void)
865{
866 pthread_mutex_lock (&reqlock);
867 pthread_mutex_lock (&reslock);
868#if !HAVE_PREADWRITE
869 pthread_mutex_lock (&preadwritelock);
870#endif
871#if !HAVE_READDIR_R
872 pthread_mutex_lock (&readdirlock);
873#endif
874}
875
876static void atfork_parent (void)
877{
878#if !HAVE_READDIR_R
879 pthread_mutex_unlock (&readdirlock);
880#endif
881#if !HAVE_PREADWRITE
882 pthread_mutex_unlock (&preadwritelock);
883#endif
884 pthread_mutex_unlock (&reslock);
885 pthread_mutex_unlock (&reqlock);
886}
887
888static void atfork_child (void)
889{
890 aio_req prv;
891
892 started = 0;
893
894 while (reqs)
895 {
896 prv = reqs;
897 reqs = prv->next;
898 req_free (prv);
899 }
900
901 reqs = reqe = 0;
902
903 while (ress)
904 {
905 prv = ress;
906 ress = prv->next;
907 req_free (prv);
908 }
909
910 ress = rese = 0;
911
912 close (respipe [0]);
913 close (respipe [1]);
914 create_pipe ();
915
916 atfork_parent ();
917}
918
919#define dREQ \
920 aio_req req; \
921 \
922 if (SvOK (callback) && !SvROK (callback)) \
923 croak ("callback must be undef or of reference type"); \
924 \
925 Newz (0, req, 1, aio_cb); \
926 if (!req) \
927 croak ("out of memory during aio_req allocation"); \
928 \
929 req->callback = newSVsv (callback)
930
931#define REQ_SEND \
932 req_send (req); \
933 \
934 if (GIMME_V != G_VOID) \
935 XPUSHs (req_sv (req, AIO_REQ_KLASS));
936
937MODULE = IO::AIO PACKAGE = IO::AIO
938
939PROTOTYPES: ENABLE
940
941BOOT:
942{
943 HV *stash = gv_stashpv ("IO::AIO", 1);
944 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
945 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
946 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
947
948 create_pipe ();
949 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
950}
951
952void 1436void
953min_parallel (nthreads) 1437aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
954 int nthreads
955 PROTOTYPE: $
956
957void
958max_parallel (nthreads)
959 int nthreads
960 PROTOTYPE: $
961
962int
963max_outstanding (nreqs)
964 int nreqs
965 PROTOTYPE: $
966 CODE: 1438 PPCODE:
967 RETVAL = max_outstanding;
968 max_outstanding = nreqs;
969
970void
971aio_open (pathname,flags,mode,callback=&PL_sv_undef)
972 SV * pathname
973 int flags
974 int mode
975 SV * callback
976 PROTOTYPE: $$$;$
977 PPCODE:
978{ 1439{
1440 int fd = s_fileno_croak (fh, 0);
979 dREQ; 1441 dREQ;
980 1442
981 req->type = REQ_OPEN; 1443 req->type = EIO_SEEK;
982 req->data = newSVsv (pathname); 1444 req->sv1 = newSVsv (fh);
983 req->dataptr = SvPVbyte_nolen (req->data); 1445 req->int1 = fd;
984 req->fd = flags; 1446 req->offs = SvVAL64 (offset);
985 req->mode = mode; 1447 req->int2 = whence;
986 1448
987 REQ_SEND; 1449 REQ_SEND;
988} 1450}
989 1451
990void 1452void
991aio_close (fh,callback=&PL_sv_undef) 1453aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
992 SV * fh
993 SV * callback
994 PROTOTYPE: $;$
995 ALIAS: 1454 ALIAS:
996 aio_close = REQ_CLOSE
997 aio_fsync = REQ_FSYNC
998 aio_fdatasync = REQ_FDATASYNC
999 PPCODE:
1000{
1001 dREQ;
1002
1003 req->type = ix;
1004 req->fh = newSVsv (fh);
1005 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1006
1007 REQ_SEND (req);
1008}
1009
1010void
1011aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1012 SV * fh
1013 UV offset
1014 UV length
1015 SV * data
1016 UV dataoffset
1017 SV * callback
1018 ALIAS:
1019 aio_read = REQ_READ 1455 aio_read = EIO_READ
1020 aio_write = REQ_WRITE 1456 aio_write = EIO_WRITE
1021 PROTOTYPE: $$$$$;$
1022 PPCODE: 1457 PPCODE:
1023{ 1458{
1024 aio_req req;
1025 STRLEN svlen; 1459 STRLEN svlen;
1460 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1026 char *svptr = SvPVbyte (data, svlen); 1461 char *svptr = SvPVbyte (data, svlen);
1027 1462 UV len = SvUV (length);
1028 SvUPGRADE (data, SVt_PV);
1029 SvPOK_on (data);
1030 1463
1031 if (dataoffset < 0) 1464 if (dataoffset < 0)
1032 dataoffset += svlen; 1465 dataoffset += svlen;
1033 1466
1034 if (dataoffset < 0 || dataoffset > svlen) 1467 if (dataoffset < 0 || dataoffset > svlen)
1035 croak ("data offset outside of string"); 1468 croak ("dataoffset outside of data scalar");
1036 1469
1037 if (ix == REQ_WRITE) 1470 if (ix == EIO_WRITE)
1038 { 1471 {
1039 /* write: check length and adjust. */ 1472 /* write: check length and adjust. */
1040 if (length < 0 || length + dataoffset > svlen) 1473 if (!SvOK (length) || len + dataoffset > svlen)
1041 length = svlen - dataoffset; 1474 len = svlen - dataoffset;
1042 } 1475 }
1043 else 1476 else
1044 { 1477 {
1045 /* read: grow scalar as necessary */ 1478 /* read: check type and grow scalar as necessary */
1479 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1046 svptr = SvGROW (data, length + dataoffset); 1480 svptr = sv_grow (data, len + dataoffset + 1);
1481 else if (SvCUR (data) < len + dataoffset)
1482 croak ("length + dataoffset outside of scalar, and cannot grow");
1047 } 1483 }
1048
1049 if (length < 0)
1050 croak ("length must not be negative");
1051 1484
1052 { 1485 {
1053 dREQ; 1486 dREQ;
1054 1487
1055 req->type = ix; 1488 req->type = ix;
1056 req->fh = newSVsv (fh); 1489 req->sv1 = newSVsv (fh);
1057 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1490 req->int1 = fd;
1058 : IoOFP (sv_2io (fh))); 1491 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1059 req->offset = offset; 1492 req->size = len;
1060 req->length = length;
1061 req->data = SvREFCNT_inc (data); 1493 req->sv2 = SvREFCNT_inc (data);
1062 req->dataptr = (char *)svptr + dataoffset; 1494 req->ptr2 = (char *)svptr + dataoffset;
1495 req->stroffset = dataoffset;
1063 1496
1064 if (!SvREADONLY (data)) 1497 if (!SvREADONLY (data))
1065 { 1498 {
1066 SvREADONLY_on (data); 1499 SvREADONLY_on (data);
1067 req->data2ptr = (void *)data; 1500 req->flags |= FLAG_SV2_RO_OFF;
1068 } 1501 }
1069 1502
1070 REQ_SEND; 1503 REQ_SEND;
1071 } 1504 }
1072} 1505}
1073 1506
1074void 1507void
1075aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1508aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1076 SV * out_fh 1509 ALIAS:
1077 SV * in_fh 1510 aio_ioctl = EIO_IOCTL
1078 UV in_offset 1511 aio_fcntl = EIO_FCNTL
1079 UV length
1080 SV * callback
1081 PROTOTYPE: $$$$;$
1082 PPCODE: 1512 PPCODE:
1083{ 1513{
1084 dREQ; 1514 int fd = s_fileno_croak (fh, 0);
1515 char *svptr;
1085 1516
1086 req->type = REQ_SENDFILE; 1517 if (SvPOK (arg) || !SvNIOK (arg))
1087 req->fh = newSVsv (out_fh);
1088 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1089 req->fh2 = newSVsv (in_fh);
1090 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1091 req->offset = in_offset;
1092 req->length = length;
1093
1094 REQ_SEND;
1095}
1096
1097void
1098aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1099 SV * fh
1100 UV offset
1101 IV length
1102 SV * callback
1103 PROTOTYPE: $$$;$
1104 PPCODE:
1105{
1106 dREQ;
1107
1108 req->type = REQ_READAHEAD;
1109 req->fh = newSVsv (fh);
1110 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1111 req->offset = offset;
1112 req->length = length;
1113
1114 REQ_SEND;
1115}
1116
1117void
1118aio_stat (fh_or_path,callback=&PL_sv_undef)
1119 SV * fh_or_path
1120 SV * callback
1121 ALIAS:
1122 aio_stat = REQ_STAT
1123 aio_lstat = REQ_LSTAT
1124 PPCODE:
1125{
1126 dREQ;
1127
1128 New (0, req->statdata, 1, Stat_t);
1129 if (!req->statdata)
1130 { 1518 {
1131 req_free (req); 1519 STRLEN svlen;
1132 croak ("out of memory during aio_req->statdata allocation"); 1520 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1133 } 1521#ifdef IOCPARM_LEN
1522 STRLEN need = IOCPARM_LEN (request);
1523#else
1524 STRLEN need = 256;
1525#endif
1134 1526
1135 if (SvPOK (fh_or_path)) 1527 if (svlen < need)
1136 { 1528 svptr = SvGROW (arg, need);
1137 req->type = ix;
1138 req->data = newSVsv (fh_or_path);
1139 req->dataptr = SvPVbyte_nolen (req->data);
1140 } 1529 }
1141 else 1530 else
1531 svptr = (char *)SvIV (arg);
1532
1142 { 1533 {
1534 dREQ;
1535
1143 req->type = REQ_FSTAT; 1536 req->type = ix;
1144 req->fh = newSVsv (fh_or_path); 1537 req->sv1 = newSVsv (fh);
1145 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1538 req->int1 = fd;
1539 req->int2 = (long)request;
1540 req->sv2 = SvREFCNT_inc (arg);
1541 req->ptr2 = svptr;
1542
1543 REQ_SEND;
1146 } 1544 }
1545}
1546
1547void
1548aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1549 ALIAS:
1550 aio_readlink = EIO_READLINK
1551 aio_realpath = EIO_REALPATH
1552 PPCODE:
1553{
1554 dREQ;
1555
1556 req->type = ix;
1557 req_set_path1 (req, pathname);
1147 1558
1148 REQ_SEND; 1559 REQ_SEND;
1149} 1560}
1150 1561
1151void 1562void
1152aio_unlink (pathname,callback=&PL_sv_undef) 1563aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1153 SV * pathname 1564 PPCODE:
1154 SV * callback 1565{
1566 int ifd = s_fileno_croak (in_fh , 0);
1567 int ofd = s_fileno_croak (out_fh, 1);
1568 dREQ;
1569
1570 req->type = EIO_SENDFILE;
1571 req->sv1 = newSVsv (out_fh);
1572 req->int1 = ofd;
1573 req->sv2 = newSVsv (in_fh);
1574 req->int2 = ifd;
1575 req->offs = in_offset;
1576 req->size = length;
1577
1578 REQ_SEND;
1579}
1580
1581void
1582aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1583 PPCODE:
1584{
1585 int fd = s_fileno_croak (fh, 0);
1586 dREQ;
1587
1588 req->type = EIO_READAHEAD;
1589 req->sv1 = newSVsv (fh);
1590 req->int1 = fd;
1591 req->offs = offset;
1592 req->size = length;
1593
1594 REQ_SEND;
1595}
1596
1597void
1598aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1155 ALIAS: 1599 ALIAS:
1600 aio_stat = EIO_STAT
1601 aio_lstat = EIO_LSTAT
1602 aio_statvfs = EIO_STATVFS
1603 PPCODE:
1604{
1605 dREQ;
1606
1607 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1608
1609 REQ_SEND;
1610}
1611
1612UV
1613major (UV dev)
1614 ALIAS:
1615 minor = 1
1616 CODE:
1617 RETVAL = ix ? minor (dev) : major (dev);
1618 OUTPUT:
1619 RETVAL
1620
1621UV
1622makedev (UV maj, UV min)
1623 CODE:
1624 RETVAL = makedev (maj, min);
1625 OUTPUT:
1626 RETVAL
1627
1628void
1629aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1630 PPCODE:
1631{
1632 dREQ;
1633
1634 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1635 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1636 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1637
1638 REQ_SEND;
1639}
1640
1641void
1642aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1643 PPCODE:
1644{
1645 dREQ;
1646
1647 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1648 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1649
1650 REQ_SEND;
1651}
1652
1653void
1654aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1655 PPCODE:
1656{
1657 dREQ;
1658
1659 req->int2 = mode;
1660 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1661
1662 REQ_SEND;
1663}
1664
1665void
1666aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1667 PPCODE:
1668{
1669 dREQ;
1670
1671 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1672 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1673 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1674
1675 REQ_SEND;
1676}
1677
1678void
1679aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1680 PPCODE:
1681{
1682 dREQ;
1683
1684 req->type = EIO_READDIR;
1685 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1686
1687 if (flags & EIO_READDIR_DENTS)
1688 req->int1 |= EIO_READDIR_CUSTOM2;
1689
1690 req_set_path1 (req, pathname);
1691
1692 REQ_SEND;
1693}
1694
1695void
1696aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1697 PPCODE:
1698{
1699 dREQ;
1700
1701 req->type = EIO_MKDIR;
1702 req->int2 = mode;
1703 req_set_path1 (req, pathname);
1704
1705 REQ_SEND;
1706}
1707
1708void
1709aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1710 ALIAS:
1156 aio_unlink = REQ_UNLINK 1711 aio_unlink = EIO_UNLINK
1157 aio_rmdir = REQ_RMDIR 1712 aio_rmdir = EIO_RMDIR
1158 aio_readdir = REQ_READDIR 1713 aio_readdir = EIO_READDIR
1159 PPCODE: 1714 PPCODE:
1160{ 1715{
1161 dREQ; 1716 dREQ;
1162 1717
1163 req->type = ix; 1718 req->type = ix;
1164 req->data = newSVsv (pathname); 1719 req_set_path1 (req, pathname);
1165 req->dataptr = SvPVbyte_nolen (req->data); 1720
1166
1167 REQ_SEND; 1721 REQ_SEND;
1168} 1722}
1169 1723
1170void 1724void
1171aio_link (oldpath,newpath,callback=&PL_sv_undef) 1725aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1172 SV * oldpath
1173 SV * newpath
1174 SV * callback
1175 ALIAS: 1726 ALIAS:
1176 aio_link = REQ_LINK 1727 aio_link = EIO_LINK
1177 aio_symlink = REQ_SYMLINK 1728 aio_symlink = EIO_SYMLINK
1178 aio_rename = REQ_RENAME 1729 aio_rename = EIO_RENAME
1179 PPCODE: 1730 PPCODE:
1180{ 1731{
1732 eio_wd wd2 = 0;
1181 dREQ; 1733 dREQ;
1182 1734
1183 req->type = ix; 1735 req->type = ix;
1184 req->fh = newSVsv (oldpath); 1736 req_set_path1 (req, oldpath);
1185 req->data2ptr = SvPVbyte_nolen (req->fh); 1737 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1186 req->data = newSVsv (newpath); 1738 req->int3 = (long)wd2;
1187 req->dataptr = SvPVbyte_nolen (req->data);
1188 1739
1189 REQ_SEND; 1740 REQ_SEND;
1190} 1741}
1191 1742
1192void 1743void
1193aio_sleep (delay,callback=&PL_sv_undef) 1744aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1194 double delay
1195 SV * callback
1196 PPCODE: 1745 PPCODE:
1197{ 1746{
1747 eio_wd wd2 = 0;
1198 dREQ; 1748 dREQ;
1199 1749
1200 req->type = REQ_SLEEP; 1750 req->type = EIO_RENAME;
1201 req->fd = delay < 0. ? 0 : delay; 1751 req_set_path1 (req, oldpath);
1202 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1752 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1203 1753 req->int2 = flags;
1754 req->int3 = (long)wd2;
1755
1204 REQ_SEND; 1756 REQ_SEND;
1205} 1757}
1206 1758
1207void 1759void
1208aio_group (callback=&PL_sv_undef) 1760aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1209 SV * callback 1761 PPCODE:
1210 PROTOTYPE: ;$ 1762{
1763 dREQ;
1764
1765 req->type = EIO_MKNOD;
1766 req->int2 = (mode_t)mode;
1767 req->offs = dev;
1768 req_set_path1 (req, pathname);
1769
1770 REQ_SEND;
1771}
1772
1773void
1774aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1775 ALIAS:
1776 aio_mtouch = EIO_MTOUCH
1777 aio_msync = EIO_MSYNC
1211 PPCODE: 1778 PPCODE:
1212{ 1779{
1780 STRLEN svlen;
1781 char *svptr = SvPVbyte (data, svlen);
1782 UV len = SvUV (length);
1783
1784 if (flags < 0)
1785 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1786
1787 if (offset < 0)
1788 offset += svlen;
1789
1790 if (offset < 0 || offset > svlen)
1791 croak ("offset outside of scalar");
1792
1793 if (!SvOK (length) || len + offset > svlen)
1794 len = svlen - offset;
1795
1796 {
1797 dREQ;
1798
1799 req->type = ix;
1800 req->sv2 = SvREFCNT_inc (data);
1801 req->ptr2 = (char *)svptr + offset;
1802 req->size = len;
1803 req->int1 = flags;
1804
1805 REQ_SEND;
1806 }
1807}
1808
1809void
1810aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1811 PPCODE:
1812{
1813 STRLEN svlen;
1814 char *svptr = SvPVbyte (data, svlen);
1815 UV len = SvUV (length);
1816
1817 if (offset < 0)
1818 offset += svlen;
1819
1820 if (offset < 0 || offset > svlen)
1821 croak ("offset outside of scalar");
1822
1823 if (!SvOK (length) || len + offset > svlen)
1824 len = svlen - offset;
1825
1826 {
1827 dREQ;
1828
1829 req->type = EIO_MLOCK;
1830 req->sv2 = SvREFCNT_inc (data);
1831 req->ptr2 = (char *)svptr + offset;
1832 req->size = len;
1833
1834 REQ_SEND;
1835 }
1836}
1837
1838void
1839aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1840 PPCODE:
1841{
1842 dREQ;
1843
1844 req->type = EIO_MLOCKALL;
1845 req->int1 = flags;
1846
1847 REQ_SEND;
1848}
1849
1850void
1851aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1852 PPCODE:
1853{
1854 int fd = s_fileno_croak (fh, 0);
1213 dREQ; 1855 dREQ;
1856
1214 req->type = REQ_GROUP; 1857 req->type = EIO_CUSTOM;
1215 req_send (req); 1858 req->sv1 = newSVsv (fh);
1216 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1859 req->int1 = fd;
1217}
1218 1860
1861 req->feed = fiemap;
1862#if HAVE_FIEMAP
1863 /* keep our fingers crossed that the next two types are 64 bit */
1864 req->offs = start;
1865 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1866 req->int2 = flags;
1867 req->int3 = SvOK (count) ? SvIV (count) : -1;
1868#endif
1869
1870 REQ_SEND;
1871}
1872
1219void 1873void
1220aio_nop (callback=&PL_sv_undef) 1874aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1221 SV * callback 1875 PPCODE:
1876{
1877 char *svptr = 0;
1878
1879 sv_clear_foreign (data);
1880
1881 if (length) /* known length, directly read into scalar */
1882 {
1883 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1884 svptr = sv_grow (data, length + 1);
1885 else if (SvCUR (data) < length)
1886 croak ("length outside of scalar, and cannot grow");
1887 else
1888 svptr = SvPVbyte_nolen (data);
1889 }
1890
1891 {
1892 dREQ;
1893
1894 req->type = EIO_SLURP;
1895 req_set_path1 (req, pathname);
1896 req->offs = offset;
1897 req->size = length;
1898 req->sv2 = SvREFCNT_inc (data);
1899 req->ptr2 = svptr;
1900
1901 if (!SvREADONLY (data))
1902 {
1903 SvREADONLY_on (data);
1904 req->flags |= FLAG_SV2_RO_OFF;
1905 }
1906
1907 REQ_SEND;
1908 }
1909}
1910
1911void
1912aio_busy (double delay, SV *callback = &PL_sv_undef)
1222 PPCODE: 1913 PPCODE:
1223{ 1914{
1224 dREQ; 1915 dREQ;
1225 1916
1226 req->type = REQ_NOP; 1917 req->type = EIO_BUSY;
1918 req->nv1 = delay < 0. ? 0. : delay;
1227 1919
1228 REQ_SEND; 1920 REQ_SEND;
1229} 1921}
1230 1922
1231void 1923void
1924aio_group (SV *callback = &PL_sv_undef)
1925 PPCODE:
1926{
1927 dREQ;
1928
1929 req->type = EIO_GROUP;
1930
1931 PUTBACK;
1932 req_submit (req);
1933 SPAGAIN;
1934
1935 XPUSHs (req_sv (req, aio_grp_stash));
1936}
1937
1938void
1939aio_nop (SV *callback = &PL_sv_undef)
1940 ALIAS:
1941 aio_nop = EIO_NOP
1942 aio_sync = EIO_SYNC
1943 PPCODE:
1944{
1945 dREQ;
1946
1947 req->type = ix;
1948
1949 REQ_SEND;
1950}
1951
1952int
1953aioreq_pri (int pri = NO_INIT)
1954 CODE:
1955 RETVAL = next_pri;
1956 if (items > 0)
1957 {
1958 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1959 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1960 next_pri = pri;
1961 }
1962 OUTPUT:
1963 RETVAL
1964
1965void
1966aioreq_nice (int nice = 0)
1967 CODE:
1968 nice = next_pri - nice;
1969 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1970 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1971 next_pri = nice;
1972
1973void
1232flush () 1974flush ()
1233 PROTOTYPE:
1234 CODE: 1975 CODE:
1235 while (nreqs) 1976 while (eio_nreqs ())
1236 { 1977 {
1237 poll_wait (); 1978 poll_wait ();
1238 poll_cb (); 1979 poll_cb ();
1239 } 1980 }
1240 1981
1241void 1982int
1242poll() 1983poll ()
1243 PROTOTYPE:
1244 CODE: 1984 CODE:
1245 if (nreqs)
1246 {
1247 poll_wait (); 1985 poll_wait ();
1248 poll_cb (); 1986 RETVAL = poll_cb ();
1249 }
1250
1251int
1252poll_fileno()
1253 PROTOTYPE:
1254 CODE:
1255 RETVAL = respipe [0];
1256 OUTPUT: 1987 OUTPUT:
1257 RETVAL 1988 RETVAL
1258 1989
1259int 1990int
1991poll_fileno ()
1992 CODE:
1993 RETVAL = s_epipe_fd (&respipe);
1994 OUTPUT:
1995 RETVAL
1996
1997int
1260poll_cb(...) 1998poll_cb (...)
1261 PROTOTYPE: 1999 PROTOTYPE:
1262 CODE: 2000 CODE:
1263 RETVAL = poll_cb (); 2001 RETVAL = poll_cb ();
1264 OUTPUT: 2002 OUTPUT:
1265 RETVAL 2003 RETVAL
1266 2004
1267void 2005void
1268poll_wait() 2006poll_wait ()
1269 PROTOTYPE:
1270 CODE: 2007 CODE:
1271 if (nreqs)
1272 poll_wait (); 2008 poll_wait ();
1273 2009
1274int 2010int
1275nreqs() 2011nreqs ()
1276 PROTOTYPE:
1277 CODE: 2012 CODE:
1278 RETVAL = nreqs; 2013 RETVAL = eio_nreqs ();
1279 OUTPUT: 2014 OUTPUT:
1280 RETVAL 2015 RETVAL
1281 2016
2017int
2018nready ()
2019 CODE:
2020 RETVAL = eio_nready ();
2021 OUTPUT:
2022 RETVAL
2023
2024int
2025npending ()
2026 CODE:
2027 RETVAL = eio_npending ();
2028 OUTPUT:
2029 RETVAL
2030
2031int
2032nthreads ()
2033 CODE:
2034 RETVAL = eio_nthreads ();
2035 OUTPUT:
2036 RETVAL
2037
2038int
2039fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2040 CODE:
2041 RETVAL = posix_fadvise (fh, offset, length, advice);
2042 OUTPUT:
2043 RETVAL
2044
2045IV
2046sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2047 CODE:
2048 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2049 OUTPUT:
2050 RETVAL
2051
2052void
2053mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2054 PPCODE:
2055 sv_clear_foreign (scalar);
2056{
2057 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2058 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2059 if (addr == (void *)-1)
2060 XSRETURN_NO;
2061
2062 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2063
2064 if (!(prot & PROT_WRITE))
2065 SvREADONLY_on (scalar);
2066
2067 XSRETURN_YES;
2068}
2069
2070void
2071munmap (SV *scalar)
2072 CODE:
2073 sv_clear_foreign (scalar);
2074
2075SV *
2076mremap (SV *scalar, STRLEN new_length, int flags = 0, IV new_address = 0)
2077 CODE:
2078{
2079 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2080 void *new;
2081
2082 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2083 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2084
2085 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2086
2087 RETVAL = &PL_sv_no;
2088
2089 if (new != (void *)-1)
2090 {
2091 RETVAL = new == (void *)mg->mg_ptr
2092 ? newSVpvn ("0 but true", 10)
2093 : &PL_sv_yes;
2094
2095 mg->mg_ptr = (char *)new;
2096 mg->mg_obj = (SV *)new_length;
2097
2098 SvPVX (scalar) = mg->mg_ptr;
2099 SvCUR_set (scalar, new_length);
2100 }
2101}
2102 OUTPUT:
2103 RETVAL
2104
2105int
2106madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2107 ALIAS:
2108 mprotect = 1
2109 CODE:
2110{
2111 STRLEN svlen;
2112 void *addr = SvPVbyte (scalar, svlen);
2113 STRLEN len = SvUV (length);
2114
2115 if (offset < 0)
2116 offset += svlen;
2117
2118 if (offset < 0 || offset > svlen)
2119 croak ("offset outside of scalar");
2120
2121 if (!SvOK (length) || len + offset > svlen)
2122 len = svlen - offset;
2123
2124 addr = (void *)(((intptr_t)addr) + offset);
2125 eio_page_align (&addr, &len);
2126
2127 switch (ix)
2128 {
2129 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2130 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2131 }
2132}
2133 OUTPUT:
2134 RETVAL
2135
2136int
2137munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2138 CODE:
2139{
2140 STRLEN svlen;
2141 void *addr = SvPVbyte (scalar, svlen);
2142 size_t len = SvUV (length);
2143
2144 if (offset < 0)
2145 offset += svlen;
2146
2147 if (offset < 0 || offset > svlen)
2148 croak ("offset outside of scalar");
2149
2150 if (!SvOK (length) || len + offset > svlen)
2151 len = svlen - offset;
2152
2153 addr = (void *)(((intptr_t)addr) + offset);
2154 eio_page_align (&addr, &len);
2155#if _POSIX_MEMLOCK_RANGE
2156 RETVAL = munlock (addr, len);
2157#else
2158 RETVAL = EIO_ENOSYS ();
2159#endif
2160}
2161 OUTPUT:
2162 RETVAL
2163
2164int
2165munlockall ()
2166 CODE:
2167#if _POSIX_MEMLOCK
2168 munlockall ();
2169#else
2170 RETVAL = EIO_ENOSYS ();
2171#endif
2172 OUTPUT:
2173 RETVAL
2174
2175int
2176splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2177 CODE:
2178{
2179#if HAVE_LINUX_SPLICE
2180 loff_t off_in_, off_out_;
2181 RETVAL = splice (
2182 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2183 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2184 length, flags
2185 );
2186#else
2187 RETVAL = EIO_ENOSYS ();
2188#endif
2189}
2190 OUTPUT:
2191 RETVAL
2192
2193int
2194tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2195 CODE:
2196#if HAVE_LINUX_SPLICE
2197 RETVAL = tee (rfh, wfh, length, flags);
2198#else
2199 RETVAL = EIO_ENOSYS ();
2200#endif
2201 OUTPUT:
2202 RETVAL
2203
2204int
2205pipesize (aio_rfd rfh, int new_size = -1)
2206 PROTOTYPE: $;$
2207 CODE:
2208#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2209 if (new_size >= 0)
2210 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2211 else
2212 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2213#else
2214 errno = ENOSYS;
2215 RETVAL = -1;
2216#endif
2217 OUTPUT:
2218 RETVAL
2219
2220void
2221pipe2 (int flags = 0)
2222 PROTOTYPE: ;$
2223 PPCODE:
2224{
2225 int fd[2];
2226 int res;
2227
2228 if (flags)
2229#if HAVE_PIPE2
2230 res = pipe2 (fd, flags);
2231#else
2232 res = (errno = ENOSYS, -1);
2233#endif
2234 else
2235 res = pipe (fd);
2236
2237 if (!res)
2238 {
2239 EXTEND (SP, 2);
2240 PUSHs (newmortalFH (fd[0], O_RDONLY));
2241 PUSHs (newmortalFH (fd[1], O_WRONLY));
2242 }
2243}
2244
2245void
2246eventfd (unsigned int initval = 0, int flags = 0)
2247 PPCODE:
2248{
2249 int fd;
2250#if HAVE_EVENTFD
2251 fd = eventfd (initval, flags);
2252#else
2253 fd = (errno = ENOSYS, -1);
2254#endif
2255
2256 XPUSHs (newmortalFH (fd, O_RDWR));
2257}
2258
2259void
2260timerfd_create (int clockid, int flags = 0)
2261 PPCODE:
2262{
2263 int fd;
2264#if HAVE_TIMERFD
2265 fd = timerfd_create (clockid, flags);
2266#else
2267 fd = (errno = ENOSYS, -1);
2268#endif
2269
2270 XPUSHs (newmortalFH (fd, O_RDWR));
2271}
2272
2273void
2274timerfd_settime (SV *fh, int flags, NV interval, NV value)
2275 PPCODE:
2276{
2277 int fd = s_fileno_croak (fh, 0);
2278#if HAVE_TIMERFD
2279 int res;
2280 struct itimerspec its, ots;
2281
2282 ts_set (&its.it_interval, interval);
2283 ts_set (&its.it_value , value);
2284 res = timerfd_settime (fd, flags, &its, &ots);
2285
2286 if (!res)
2287 {
2288 EXTEND (SP, 2);
2289 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2290 PUSHs (newSVnv (ts_get (&ots.it_value)));
2291 }
2292#else
2293 errno = ENOSYS;
2294#endif
2295}
2296
2297void
2298timerfd_gettime (SV *fh)
2299 PPCODE:
2300{
2301 int fd = s_fileno_croak (fh, 0);
2302#if HAVE_TIMERFD
2303 int res;
2304 struct itimerspec ots;
2305 res = timerfd_gettime (fd, &ots);
2306
2307 if (!res)
2308 {
2309 EXTEND (SP, 2);
2310 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2311 PUSHs (newSVnv (ts_get (&ots.it_value)));
2312 }
2313#else
2314 errno = ENOSYS;
2315#endif
2316}
2317
2318UV
2319get_fdlimit ()
2320 CODE:
2321#if HAVE_RLIMITS
2322 struct rlimit rl;
2323 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2324 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2325#endif
2326 XSRETURN_UNDEF;
2327 OUTPUT:
2328 RETVAL
2329
2330void
2331min_fdlimit (UV limit = 0x7fffffffU)
2332 CODE:
2333{
2334#if HAVE_RLIMITS
2335 struct rlimit rl;
2336 rlim_t orig_rlim_max;
2337 UV bit;
2338
2339 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2340 goto fail;
2341
2342 if (rl.rlim_cur == RLIM_INFINITY)
2343 XSRETURN_YES;
2344
2345 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2346
2347 if (rl.rlim_cur < limit)
2348 {
2349 rl.rlim_cur = limit;
2350
2351 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2352 rl.rlim_max = rl.rlim_cur;
2353 }
2354
2355 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2356 XSRETURN_YES;
2357
2358 if (errno == EPERM)
2359 {
2360 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2361 /* our limit overflows a system-wide limit */
2362 /* try an adaptive algorithm, but do not lower the hardlimit */
2363 rl.rlim_max = 0;
2364 for (bit = 0x40000000U; bit; bit >>= 1)
2365 {
2366 rl.rlim_max |= bit;
2367 rl.rlim_cur = rl.rlim_max;
2368
2369 /* nevr decrease the hard limit */
2370 if (rl.rlim_max < orig_rlim_max)
2371 break;
2372
2373 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2374 rl.rlim_max &= ~bit; /* too high, remove bit again */
2375 }
2376
2377 /* now, raise the soft limit to the max permitted */
2378 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2379 {
2380 rl.rlim_cur = rl.rlim_max;
2381 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2382 errno = EPERM;
2383 }
2384 }
2385#endif
2386 fail:
2387 XSRETURN_UNDEF;
2388}
2389
2390void _on_next_submit (SV *cb)
2391 CODE:
2392 SvREFCNT_dec (on_next_submit);
2393 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2394
1282PROTOTYPES: DISABLE 2395PROTOTYPES: DISABLE
1283 2396
2397MODULE = IO::AIO PACKAGE = IO::AIO::WD
2398
2399BOOT:
2400{
2401 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2402 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2403}
2404
2405void
2406DESTROY (SV *self)
2407 CODE:
2408{
2409 aio_wd wd = SvAIO_WD (self);
2410#if HAVE_AT
2411 {
2412 SV *callback = &PL_sv_undef;
2413 dREQ; /* clobbers next_pri :/ */
2414 next_pri = req->pri; /* restore next_pri */
2415 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2416 req->type = EIO_WD_CLOSE;
2417 req->wd = wd;
2418 REQ_SEND;
2419 }
2420#else
2421 eio_wd_close_sync (wd);
2422#endif
2423}
2424
1284MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2425MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1285 2426
1286void 2427void
1287cancel (aio_req_ornot req) 2428cancel (aio_req_ornot req)
1288 PROTOTYPE:
1289 CODE: 2429 CODE:
1290 req_cancel (req); 2430 eio_cancel (req);
2431
2432void
2433cb (aio_req_ornot req, SV *callback = NO_INIT)
2434 PPCODE:
2435{
2436 if (GIMME_V != G_VOID)
2437 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2438
2439 if (items > 1)
2440 {
2441 SV *cb_cv = get_cb (callback);
2442
2443 SvREFCNT_dec (req->callback);
2444 req->callback = SvREFCNT_inc (cb_cv);
2445 }
2446}
1291 2447
1292MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2448MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1293 2449
1294void 2450void
1295add (aio_req grp, ...) 2451add (aio_req grp, ...)
1296 PPCODE: 2452 PPCODE:
1297{ 2453{
1298 int i; 2454 int i;
1299 aio_req req;
1300 2455
1301 if (grp->fd == 2) 2456 if (grp->int1 == 2)
1302 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2457 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1303 2458
1304 for (i = 1; i < items; ++i ) 2459 for (i = 1; i < items; ++i )
1305 { 2460 {
2461 aio_req req;
2462
1306 if (GIMME_V != G_VOID) 2463 if (GIMME_V != G_VOID)
1307 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2464 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1308 2465
1309 req = SvAIO_REQ (ST (i)); 2466 req = SvAIO_REQ (ST (i));
1310 2467
1311 if (req) 2468 if (req)
1312 { 2469 eio_grp_add (grp, req);
1313 ++grp->length;
1314 req->grp = grp;
1315
1316 req->grp_prev = 0;
1317 req->grp_next = grp->grp_first;
1318
1319 if (grp->grp_first)
1320 grp->grp_first->grp_prev = req;
1321
1322 grp->grp_first = req;
1323 }
1324 } 2470 }
1325} 2471}
2472
2473void
2474cancel_subs (aio_req_ornot req)
2475 CODE:
2476 req_cancel_subs (req);
1326 2477
1327void 2478void
1328result (aio_req grp, ...) 2479result (aio_req grp, ...)
1329 CODE: 2480 CODE:
1330{ 2481{
1331 int i; 2482 int i;
2483 AV *av;
2484
2485 grp->errorno = errno;
2486
1332 AV *av = newAV (); 2487 av = newAV ();
2488 av_extend (av, items - 1);
1333 2489
1334 for (i = 1; i < items; ++i ) 2490 for (i = 1; i < items; ++i )
1335 av_push (av, newSVsv (ST (i))); 2491 av_push (av, newSVsv (ST (i)));
1336 2492
1337 SvREFCNT_dec (grp->data); 2493 SvREFCNT_dec (grp->sv1);
1338 grp->data = (SV *)av; 2494 grp->sv1 = (SV *)av;
1339} 2495}
1340 2496
1341void 2497void
1342lock (aio_req grp) 2498errno (aio_req grp, int errorno = errno)
2499 CODE:
2500 grp->errorno = errorno;
2501
2502void
2503limit (aio_req grp, int limit)
1343 CODE: 2504 CODE:
1344 ++grp->length; 2505 eio_grp_limit (grp, limit);
1345 2506
1346void 2507void
1347unlock (aio_req grp) 2508feed (aio_req grp, SV *callback = &PL_sv_undef)
1348 CODE: 2509 CODE:
1349 aio_grp_dec (grp);
1350
1351void
1352feeder_limit (aio_req grp, int limit)
1353 CODE:
1354 grp->fd2 = limit;
1355 aio_grp_feed (grp);
1356
1357void
1358set_feeder (aio_req grp, SV *callback=&PL_sv_undef)
1359 CODE:
1360{ 2510{
1361 SvREFCNT_dec (grp->fh2); 2511 SvREFCNT_dec (grp->sv2);
1362 grp->fh2 = newSVsv (callback); 2512 grp->sv2 = newSVsv (callback);
2513 grp->feed = aio_grp_feed;
1363 2514
1364 if (grp->fd2 <= 0) 2515 if (grp->int2 <= 0)
1365 grp->fd2 = 2; 2516 grp->int2 = 2;
1366 2517
1367 aio_grp_feed (grp); 2518 eio_grp_limit (grp, grp->int2);
1368} 2519}
1369 2520

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