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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.44 by root, Sat Oct 21 23:20:29 2006 UTC vs.
Revision 1.206 by root, Tue Oct 4 18:22:37 2011 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#include "schmorp.h"
9
10#include <pthread.h>
11 10
12#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
13#include <errno.h> 13#include <errno.h>
14#include <sys/types.h> 14#include <sys/types.h>
15#include <sys/stat.h> 15#include <sys/stat.h>
16#include <limits.h> 16#include <limits.h>
17#include <unistd.h>
18#include <fcntl.h> 17#include <fcntl.h>
19#include <signal.h>
20#include <sched.h> 18#include <sched.h>
21 19
22#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
23# if __linux
24# include <sys/sendfile.h>
25# elif __freebsd
26# include <sys/socket.h>
27# include <sys/uio.h> 21# include <sys/mman.h>
28# elif __hpux 22#endif
23
24/* perl namespace pollution */
25#undef VERSION
26
27/* perl stupidly overrides readdir and maybe others */
28/* with thread-unsafe versions, imagine that :( */
29#undef readdir
30#undef opendir
31#undef closedir
32
33#ifdef _WIN32
34
35 // perl overrides all those nice libc functions
36
37 #undef malloc
38 #undef free
39 #undef open
40 #undef read
41 #undef write
42 #undef send
43 #undef recv
44 #undef stat
45 #undef lstat
46 #undef fstat
47 #undef truncate
48 #undef ftruncate
49 #undef open
50 #undef link
51 #undef close
52 #undef unlink
53 #undef mkdir
54 #undef rmdir
55 #undef rename
56 #undef lseek
57 #undef opendir
58 #undef readdir
59 #undef closedir
60 #undef chmod
61 #undef fchmod
62 #undef dup
63 #undef dup2
64 #undef abort
65 #undef pipe
66
67#else
68
29# include <sys/socket.h> 69 #include <sys/time.h>
30# elif __solaris /* not yet */
31# include <sys/sendfile.h> 70 #include <sys/select.h>
71 #include <unistd.h>
72 #include <utime.h>
73 #include <signal.h>
74
75#endif
76
77#define EIO_STRUCT_STAT Stat_t
78
79/* use NV for 32 bit perls as it allows larger offsets */
80#if IVSIZE >= 8
81# define VAL64 IV
82# define SvVAL64 SvIV
83# define newSVval64 newSViv
84#else
85# define VAL64 NV
86# define SvVAL64 SvNV
87# define newSVval64 newSVnv
88#endif
89
90/*****************************************************************************/
91
92#if __GNUC__ >= 3
93# define expect(expr,value) __builtin_expect ((expr),(value))
94#else
95# define expect(expr,value) (expr)
96#endif
97
98#define expect_false(expr) expect ((expr) != 0, 0)
99#define expect_true(expr) expect ((expr) != 0, 1)
100
101/*****************************************************************************/
102
103typedef SV SV8; /* byte-sv, used for argument-checking */
104typedef int aio_rfd; /* read file desriptor */
105typedef int aio_wfd; /* write file descriptor */
106
107static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
108
109#define EIO_REQ_MEMBERS \
110 SV *callback; \
111 SV *sv1, *sv2; \
112 SV *sv3, *sv4; \
113 STRLEN stroffset; \
114 SV *self;
115
116#define EIO_NO_WRAPPERS 1
117
118#include "libeio/config.h"
119#include "libeio/eio.h"
120
121static int req_invoke (eio_req *req);
122#define EIO_FINISH(req) req_invoke (req)
123static void req_destroy (eio_req *grp);
124#define EIO_DESTROY(req) req_destroy (req)
125
126#include "libeio/eio.c"
127
128/* Linux/others */
129#ifndef O_ASYNC
130# define O_ASYNC 0
131#endif
132#ifndef O_DIRECT
133# define O_DIRECT 0
134#endif
135#ifndef O_NOATIME
136# define O_NOATIME 0
137#endif
138
139/* POSIX */
140#ifndef O_CLOEXEC
141# define O_CLOEXEC 0
142#endif
143#ifndef O_NOFOLLOW
144# define O_NOFOLLOW 0
145#endif
146#ifndef O_NOCTTY
147# define O_NOCTTY 0
148#endif
149#ifndef O_NONBLOCK
150# define O_NONBLOCK 0
151#endif
152#ifndef O_EXEC
153# define O_EXEC 0
154#endif
155#ifndef O_SEARCH
156# define O_SEARCH 0
157#endif
158#ifndef O_DIRECTORY
159# define O_DIRECTORY 0
160#endif
161#ifndef O_DSYNC
162# define O_DSYNC 0
163#endif
164#ifndef O_RSYNC
165# define O_RSYNC 0
166#endif
167#ifndef O_SYNC
168# define O_SYNC 0
169#endif
170#ifndef O_TTY_INIT
171# define O_TTY_INIT 0
172#endif
173
174#ifndef POSIX_FADV_NORMAL
175# define POSIX_FADV_NORMAL 0
176#endif
177#ifndef POSIX_FADV_SEQUENTIAL
178# define POSIX_FADV_SEQUENTIAL 0
179#endif
180#ifndef POSIX_FADV_RANDOM
181# define POSIX_FADV_RANDOM 0
182#endif
183#ifndef POSIX_FADV_NOREUSE
184# define POSIX_FADV_NOREUSE 0
185#endif
186#ifndef POSIX_FADV_WILLNEED
187# define POSIX_FADV_WILLNEED 0
188#endif
189#ifndef POSIX_FADV_DONTNEED
190# define POSIX_FADV_DONTNEED 0
191#endif
192
193#if !HAVE_POSIX_FADVISE
194# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
195#endif
196
197#ifndef POSIX_MADV_NORMAL
198# define POSIX_MADV_NORMAL 0
199#endif
200#ifndef POSIX_MADV_SEQUENTIAL
201# define POSIX_MADV_SEQUENTIAL 0
202#endif
203#ifndef POSIX_MADV_RANDOM
204# define POSIX_MADV_RANDOM 0
205#endif
206#ifndef POSIX_MADV_WILLNEED
207# define POSIX_MADV_WILLNEED 0
208#endif
209#ifndef POSIX_MADV_DONTNEED
210# define POSIX_MADV_DONTNEED 0
211#endif
212
213#if !HAVE_POSIX_MADVISE
214# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
215#endif
216
217#ifndef PROT_NONE
218# define PROT_NONE 0
219#endif
220#ifndef PROT_READ
221# define PROT_READ 0
222#endif
223#ifndef PROT_WRITE
224# define PROT_READ 0
225#endif
226#ifndef PROT_EXEC
227# define PROT_EXEC 0
228#endif
229
230#ifndef ST_RDONLY
231# define ST_RDONLY 0
232#endif
233#ifndef ST_NOSUID
234# define ST_NOSUID 0
235#endif
236#ifndef ST_NODEV
237# define ST_NODEV 0
238#endif
239#ifndef ST_NOEXEC
240# define ST_NOEXEC 0
241#endif
242#ifndef ST_SYNCHRONOUS
243# define ST_SYNCHRONOUS 0
244#endif
245#ifndef ST_MANDLOCK
246# define ST_MANDLOCK 0
247#endif
248#ifndef ST_WRITE
249# define ST_WRITE 0
250#endif
251#ifndef ST_APPEND
252# define ST_APPEND 0
253#endif
254#ifndef ST_IMMUTABLE
255# define ST_IMMUTABLE 0
256#endif
257#ifndef ST_NOATIME
258# define ST_NOATIME 0
259#endif
260#ifndef ST_NODIRATIME
261# define ST_NODIRATIME 0
262#endif
263#ifndef ST_RELATIME
264# define ST_RELATIME 0
265#endif
266
267#ifndef S_IFIFO
268# define S_IFIFO 0
269#endif
270#ifndef S_IFCHR
271# define S_IFCHR 0
272#endif
273#ifndef S_IFBLK
274# define S_IFBLK 0
275#endif
276#ifndef S_IFLNK
277# define S_IFLNK 0
278#endif
279#ifndef S_IFREG
280# define S_IFREG 0
281#endif
282#ifndef S_IFDIR
283# define S_IFDIR 0
284#endif
285#ifndef S_IFWHT
286# define S_IFWHT 0
287#endif
288#ifndef S_IFSOCK
289# define S_IFSOCK 0
290#endif
291
292#ifndef MAP_ANONYMOUS
293# ifdef MAP_ANON
294# define MAP_ANONYMOUS MAP_ANON
32# else 295# else
33# error sendfile support requested but not available 296# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
34# endif 297# endif
35#endif 298#endif
36 299#ifndef MAP_HUGETLB
37/* used for struct dirent, AIX doesn't provide it */ 300# define MAP_HUGETLB 0
38#ifndef NAME_MAX
39# define NAME_MAX 4096
40#endif 301#endif
302#ifndef MAP_LOCKED
303# define MAP_LOCKED 0
304#endif
305#ifndef MAP_NORESERVE
306# define MAP_NORESERVE 0
307#endif
308#ifndef MAP_POPULATE
309# define MAP_POPULATE 0
310#endif
311#ifndef MAP_NONBLOCK
312# define MAP_NONBLOCK 0
313#endif
41 314
42#if __ia64 315#ifndef makedev
43# define STACKSIZE 65536 316# define makedev(maj,min) (((maj) << 8) | (min))
44#else 317#endif
45# define STACKSIZE 8192 318#ifndef major
319# define major(dev) ((dev) >> 8)
320#endif
321#ifndef minor
322# define minor(dev) ((dev) & 0xff)
323#endif
324
325#ifndef PAGESIZE
326# define PAGESIZE sysconf (_SC_PAGESIZE)
46#endif 327#endif
47 328
48enum { 329enum {
49 REQ_QUIT, 330 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 REQ_GROUP,
59}; 331};
60 332
61#define AIO_REQ_KLASS "IO::AIO::REQ"
62#define AIO_GRP_KLASS "IO::AIO::GRP"
63
64typedef struct aio_cb
65{
66 struct aio_cb *grp, *grp_prev, *grp_next;
67
68 struct aio_cb *volatile next;
69
70 SV *self; /* the perl counterpart of this request, if any */
71
72 SV *data, *callback;
73 SV *fh, *fh2;
74 void *dataptr, *data2ptr;
75 Stat_t *statdata;
76 off_t offset;
77 size_t length;
78 ssize_t result;
79
80 int type;
81 int fd, fd2;
82 int errorno;
83 STRLEN dataoffset;
84 mode_t mode; /* open */
85 unsigned char cancelled;
86} aio_cb;
87
88typedef aio_cb *aio_req; 333typedef eio_req *aio_req;
89typedef aio_cb *aio_req_ornot; 334typedef eio_req *aio_req_ornot;
90typedef aio_cb *aio_group; 335typedef eio_wd aio_wd;
91 336
92static int started, wanted; 337static SV *on_next_submit;
93static volatile int nreqs; 338static int next_pri = EIO_PRI_DEFAULT;
94static int max_outstanding = 1<<30; 339static int max_outstanding;
95static int respipe [2];
96 340
97static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 341static s_epipe respipe;
98static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
99static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
100 342
101static volatile aio_req reqs, reqe; /* queue start, queue end */ 343static void req_destroy (aio_req req);
102static volatile aio_req ress, rese; /* queue start, queue end */ 344static void req_cancel (aio_req req);
345
346static void
347want_poll (void)
348{
349 /* write a dummy byte to the pipe so fh becomes ready */
350 s_epipe_signal (&respipe);
351}
352
353static void
354done_poll (void)
355{
356 /* read any signals sent by the worker threads */
357 s_epipe_drain (&respipe);
358}
103 359
104/* must be called at most once */ 360/* must be called at most once */
105static SV *req_sv (aio_req req, const char *klass) 361static SV *
362req_sv (aio_req req, HV *stash)
106{ 363{
364 if (!req->self)
365 {
107 req->self = (SV *)newHV (); 366 req->self = (SV *)newHV ();
108 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 367 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
368 }
109 369
110 return sv_2mortal (sv_bless (newRV_noinc (req->self), gv_stashpv (klass, 1))); 370 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
111} 371}
112 372
113static aio_req SvAIO_REQ (SV *sv, const char *klass) 373static SV *
374newSVaio_wd (aio_wd wd)
114{ 375{
115 if (!sv_derived_from (sv, klass) || !SvROK (sv)) 376 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
377}
378
379static aio_req
380SvAIO_REQ (SV *sv)
381{
382 MAGIC *mg;
383
384 if (!SvROK (sv)
385 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
386 || (SvSTASH (SvRV (sv)) != aio_grp_stash
387 && SvSTASH (SvRV (sv)) != aio_req_stash
388 && !sv_derived_from (sv, "IO::AIO::REQ")))
116 croak ("object of class %s expected", klass); 389 croak ("object of class IO::AIO::REQ expected");
117 390
118 MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 391 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
119 392
120 return mg ? (aio_req)mg->mg_ptr : 0; 393 return mg ? (aio_req)mg->mg_ptr : 0;
121} 394}
122 395
123static void req_free (aio_req req) 396static aio_wd
397SvAIO_WD (SV *sv)
398{
399 if (!SvROK (sv)
400 || SvTYPE (SvRV (sv)) != SVt_PVMG
401 || SvSTASH (SvRV (sv)) != aio_wd_stash)
402 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
403
404 return (aio_wd)(long)SvIVX (SvRV (sv));
405}
406
407static void
408aio_grp_feed (aio_req grp)
409{
410 if (grp->sv2 && SvOK (grp->sv2))
411 {
412 dSP;
413
414 ENTER;
415 SAVETMPS;
416 PUSHMARK (SP);
417 XPUSHs (req_sv (grp, aio_grp_stash));
418 PUTBACK;
419 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
420 SPAGAIN;
421 FREETMPS;
422 LEAVE;
423 }
424}
425
426static void
427req_submit (eio_req *req)
428{
429 eio_submit (req);
430
431 if (expect_false (on_next_submit))
432 {
433 dSP;
434 SV *cb = sv_2mortal (on_next_submit);
435
436 on_next_submit = 0;
437
438 PUSHMARK (SP);
439 PUTBACK;
440 call_sv (cb, G_DISCARD | G_EVAL);
441 }
442}
443
444static int
445req_invoke (eio_req *req)
446{
447 if (req->flags & FLAG_SV2_RO_OFF)
448 SvREADONLY_off (req->sv2);
449
450 if (!EIO_CANCELLED (req) && req->callback)
451 {
452 dSP;
453 static SV *sv_result_cache; /* caches the result integer SV */
454 SV *sv_result;
455
456 ENTER;
457 SAVETMPS;
458 PUSHMARK (SP);
459 EXTEND (SP, 1);
460
461 /* do not recreate the result IV from scratch each time */
462 if (expect_true (sv_result_cache))
463 {
464 sv_result = sv_result_cache; sv_result_cache = 0;
465 SvIV_set (sv_result, req->result);
466 SvIOK_only (sv_result);
467 }
468 else
469 {
470 sv_result = newSViv (req->result);
471 SvREADONLY_on (sv_result);
472 }
473
474 switch (req->type)
475 {
476 case EIO_WD_OPEN:
477 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
478 break;
479
480 case EIO_READDIR:
481 {
482 SV *rv = &PL_sv_undef;
483
484 if (req->result >= 0)
485 {
486 int i;
487 char *names = (char *)req->ptr2;
488 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
489 AV *av = newAV ();
490
491 av_extend (av, req->result - 1);
492
493 for (i = 0; i < req->result; ++i)
494 {
495 if (req->int1 & EIO_READDIR_DENTS)
496 {
497 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
498
499 if (req->int1 & EIO_READDIR_CUSTOM2)
500 {
501 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
502 AV *avent = newAV ();
503
504 av_extend (avent, 2);
505
506 if (!sv_type [ent->type])
507 {
508 sv_type [ent->type] = newSViv (ent->type);
509 SvREADONLY_on (sv_type [ent->type]);
510 }
511
512 av_store (avent, 0, namesv);
513 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
514 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
515
516 av_store (av, i, newRV_noinc ((SV *)avent));
517 }
518 else
519 av_store (av, i, namesv);
520
521 ++ent;
522 }
523 else
524 {
525 SV *name = newSVpv (names, 0);
526 av_store (av, i, name);
527 names += SvCUR (name) + 1;
528 }
529 }
530
531 rv = sv_2mortal (newRV_noinc ((SV *)av));
532 }
533
534 PUSHs (rv);
535
536 if (req->int1 & EIO_READDIR_CUSTOM1)
537 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
538 }
539 break;
540
541 case EIO_OPEN:
542 {
543 /* convert fd to fh */
544 SV *fh = &PL_sv_undef;
545
546 if (req->result >= 0)
547 {
548 GV *gv = (GV *)sv_newmortal ();
549 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
550 char sym [64];
551 int symlen;
552
553 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
554 gv_init (gv, aio_stash, sym, symlen, 0);
555
556 symlen = snprintf (
557 sym,
558 sizeof (sym),
559 "%s&=%d",
560 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
561 (int)req->result
562 );
563
564 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
565 fh = (SV *)gv;
566 }
567
568 PUSHs (fh);
569 }
570 break;
571
572 case EIO_STATVFS:
573 case EIO_FSTATVFS:
574 {
575 SV *rv = &PL_sv_undef;
576
577#ifndef _WIN32
578 if (req->result >= 0)
579 {
580 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
581 HV *hv = newHV ();
582
583 rv = sv_2mortal (newRV_noinc ((SV *)hv));
584
585 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
586 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
587 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
588 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
589 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
590 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
591 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
592 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
593 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
594 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
595 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
596 }
597#endif
598
599 PUSHs (rv);
600 }
601
602 break;
603
604 case EIO_GROUP:
605 req->int1 = 2; /* mark group as finished */
606
607 if (req->sv1)
608 {
609 int i;
610 AV *av = (AV *)req->sv1;
611
612 EXTEND (SP, AvFILL (av) + 1);
613 for (i = 0; i <= AvFILL (av); ++i)
614 PUSHs (*av_fetch (av, i, 0));
615 }
616 break;
617
618 case EIO_NOP:
619 case EIO_BUSY:
620 break;
621
622 case EIO_READLINK:
623 case EIO_REALPATH:
624 if (req->result > 0)
625 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
626 break;
627
628 case EIO_STAT:
629 case EIO_LSTAT:
630 case EIO_FSTAT:
631 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
632
633 if (!(PL_laststatval = req->result))
634 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
635 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
636
637 PUSHs (sv_result);
638 break;
639
640 case EIO_READ:
641 {
642 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
643 *SvEND (req->sv2) = 0;
644 SvPOK_only (req->sv2);
645 SvSETMAGIC (req->sv2);
646 PUSHs (sv_result);
647 }
648 break;
649
650 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
651 if (req->result > 0)
652 SvIV_set (sv_result, 0);
653 /* FALLTHROUGH */
654
655 default:
656 PUSHs (sv_result);
657 break;
658 }
659
660 errno = req->errorno;
661
662 PUTBACK;
663 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
664 SPAGAIN;
665
666 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
667 SvREFCNT_dec (sv_result);
668 else
669 sv_result_cache = sv_result;
670
671 FREETMPS;
672 LEAVE;
673
674 PUTBACK;
675 }
676
677 return !!SvTRUE (ERRSV);
678}
679
680static void
681req_destroy (aio_req req)
124{ 682{
125 if (req->self) 683 if (req->self)
126 { 684 {
127 sv_unmagic (req->self, PERL_MAGIC_ext); 685 sv_unmagic (req->self, PERL_MAGIC_ext);
128 SvREFCNT_dec (req->self); 686 SvREFCNT_dec (req->self);
129 } 687 }
130 688
131 if (req->data)
132 SvREFCNT_dec (req->data);
133
134 if (req->fh)
135 SvREFCNT_dec (req->fh); 689 SvREFCNT_dec (req->sv1);
136
137 if (req->fh2)
138 SvREFCNT_dec (req->fh2); 690 SvREFCNT_dec (req->sv2);
139 691 SvREFCNT_dec (req->sv3);
140 if (req->statdata) 692 SvREFCNT_dec (req->sv4);
141 Safefree (req->statdata);
142
143 if (req->callback)
144 SvREFCNT_dec (req->callback); 693 SvREFCNT_dec (req->callback);
145 694
146 if (req->type == REQ_READDIR && req->result >= 0)
147 free (req->data2ptr);
148
149 Safefree (req); 695 free (req);
150} 696}
151 697
152static void 698static void
699req_cancel_subs (aio_req grp)
700{
701 if (grp->type != EIO_GROUP)
702 return;
703
704 SvREFCNT_dec (grp->sv2);
705 grp->sv2 = 0;
706
707 eio_grp_cancel (grp);
708}
709
710static void ecb_cold
711create_respipe (void)
712{
713 if (s_epipe_renew (&respipe))
714 croak ("IO::AIO: unable to initialize result pipe");
715}
716
717static void
153poll_wait () 718poll_wait (void)
154{ 719{
155 if (nreqs && !ress) 720 while (eio_nreqs ())
156 { 721 {
157 fd_set rfd; 722 int size;
158 FD_ZERO(&rfd);
159 FD_SET(respipe [0], &rfd);
160 723
161 select (respipe [0] + 1, &rfd, 0, 0, 0); 724 X_LOCK (reslock);
725 size = res_queue.size;
726 X_UNLOCK (reslock);
727
728 if (size)
729 return;
730
731 etp_maybe_start_thread ();
732
733 s_epipe_wait (&respipe);
162 } 734 }
163} 735}
164 736
165static int 737static int
166poll_cb () 738poll_cb (void)
167{ 739{
168 dSP;
169 int count = 0;
170 int do_croak = 0;
171 aio_req req;
172
173 for (;;) 740 for (;;)
174 { 741 {
175 pthread_mutex_lock (&reslock); 742 int res = eio_poll ();
176 req = ress;
177 743
178 if (req) 744 if (res > 0)
745 croak (0);
746
747 if (!max_outstanding || max_outstanding > eio_nreqs ())
748 return res;
749
750 poll_wait ();
751 }
752}
753
754static void ecb_cold
755reinit (void)
756{
757 create_respipe ();
758
759 if (eio_init (want_poll, done_poll) < 0)
760 croak ("IO::AIO: unable to initialise eio library");
761}
762
763/*****************************************************************************/
764
765#if !_POSIX_MAPPED_FILES
766# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
767# define munmap(addr,length) (errno = ENOSYS, -1)
768#endif
769
770#if !_POSIX_MEMORY_PROTECTION
771# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
772# define PROT_NONE 0
773# define PROT_WRITE 0
774# define MAP_PRIVATE 0
775# define MAP_SHARED 0
776# define MAP_FIXED 0
777#endif
778
779#define MMAP_MAGIC PERL_MAGIC_ext
780
781static int ecb_cold
782mmap_free (pTHX_ SV *sv, MAGIC *mg)
783{
784 int old_errno = errno;
785 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
786 errno = old_errno;
787
788 mg->mg_obj = 0; /* just in case */
789
790 SvREADONLY_off (sv);
791
792 if (SvPVX (sv) != mg->mg_ptr)
793 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
794
795 SvCUR_set (sv, 0);
796 SvPVX (sv) = 0;
797 SvOK_off (sv);
798
799 return 0;
800}
801
802static MGVTBL mmap_vtbl = {
803 0, 0, 0, 0, mmap_free
804};
805
806/*****************************************************************************/
807
808static SV *
809get_cb (SV *cb_sv)
810{
811 SvGETMAGIC (cb_sv);
812 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
813}
814
815static aio_req ecb_noinline
816dreq (SV *callback)
817{
818 SV *cb_cv;
819 aio_req req;
820 int req_pri = next_pri;
821 next_pri = EIO_PRI_DEFAULT;
822
823 cb_cv = get_cb (callback);
824
825 req = calloc (sizeof (*req), 1);
826 if (!req)
827 croak ("out of memory during eio_req allocation");
828
829 req->callback = SvREFCNT_inc (cb_cv);
830 req->pri = req_pri;
831
832 return req;
833}
834
835#define dREQ \
836 aio_req req = dreq (callback); \
837
838#define REQ_SEND \
839 PUTBACK; \
840 req_submit (req); \
841 SPAGAIN; \
842 \
843 if (GIMME_V != G_VOID) \
844 XPUSHs (req_sv (req, aio_req_stash));
845
846ecb_inline void
847req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
848{
849 if (expect_false (SvROK (path)))
850 {
851 SV *rv = SvRV (path);
852 SV *wdob;
853
854 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
179 { 855 {
180 ress = req->next; 856 path = AvARRAY (rv)[1];
857 wdob = AvARRAY (rv)[0];
181 858
182 if (!ress) 859 if (SvOK (wdob))
183 { 860 {
184 /* read any signals sent by the worker threads */ 861 *wd = SvAIO_WD (wdob);
185 char buf [32]; 862 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
186 while (read (respipe [0], buf, 32) == 32)
187 ;
188
189 rese = 0;
190 }
191 }
192
193 pthread_mutex_unlock (&reslock);
194
195 if (!req)
196 break;
197
198 nreqs--;
199
200 if (req->type == REQ_QUIT)
201 started--;
202 else
203 {
204 int errorno = errno;
205 errno = req->errorno;
206
207 if (req->type == REQ_READ)
208 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
209
210 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
211 SvREADONLY_off (req->data);
212
213 if (req->statdata)
214 {
215 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
216 PL_laststatval = req->result;
217 PL_statcache = *(req->statdata);
218 }
219
220 ENTER;
221 PUSHMARK (SP);
222
223 if (req->type == REQ_READDIR)
224 {
225 SV *rv = &PL_sv_undef;
226
227 if (req->result >= 0)
228 {
229 char *buf = req->data2ptr;
230 AV *av = newAV ();
231
232 while (req->result)
233 {
234 SV *sv = newSVpv (buf, 0);
235
236 av_push (av, sv);
237 buf += SvCUR (sv) + 1;
238 req->result--;
239 }
240
241 rv = sv_2mortal (newRV_noinc ((SV *)av));
242 }
243
244 XPUSHs (rv);
245 } 863 }
246 else 864 else
247 { 865 *wd = EIO_INVALID_WD;
248 XPUSHs (sv_2mortal (newSViv (req->result)));
249
250 if (req->type == REQ_OPEN)
251 {
252 /* convert fd to fh */
253 SV *fh;
254
255 PUTBACK;
256 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
257 SPAGAIN;
258
259 fh = SvREFCNT_inc (POPs);
260
261 PUSHMARK (SP);
262 XPUSHs (sv_2mortal (fh));
263 }
264 }
265
266 if (SvOK (req->callback) && !req->cancelled)
267 {
268 PUTBACK;
269 call_sv (req->callback, G_VOID | G_EVAL);
270 SPAGAIN;
271
272 if (SvTRUE (ERRSV))
273 {
274 req_free (req);
275 croak (0);
276 }
277 }
278
279 LEAVE;
280
281 errno = errorno;
282 count++;
283 } 866 }
284 867 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
285 req_free (req);
286 }
287
288 return count;
289}
290
291static void *aio_proc(void *arg);
292
293static void
294start_thread (void)
295{
296 sigset_t fullsigset, oldsigset;
297 pthread_t tid;
298 pthread_attr_t attr;
299
300 pthread_attr_init (&attr);
301 pthread_attr_setstacksize (&attr, STACKSIZE);
302 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
303
304 sigfillset (&fullsigset);
305 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
306
307 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
308 started++;
309
310 sigprocmask (SIG_SETMASK, &oldsigset, 0);
311}
312
313static void
314req_send (aio_req req)
315{
316 while (started < wanted && nreqs >= started)
317 start_thread ();
318
319 nreqs++;
320
321 pthread_mutex_lock (&reqlock);
322
323 req->next = 0;
324
325 if (reqe)
326 {
327 reqe->next = req;
328 reqe = req;
329 }
330 else
331 reqe = reqs = req;
332
333 pthread_cond_signal (&reqwait);
334 pthread_mutex_unlock (&reqlock);
335
336 if (nreqs > max_outstanding)
337 for (;;)
338 {
339 poll_cb ();
340
341 if (nreqs <= max_outstanding)
342 break;
343
344 poll_wait ();
345 }
346}
347
348static void
349end_thread (void)
350{
351 aio_req req;
352 Newz (0, req, 1, aio_cb);
353 req->type = REQ_QUIT;
354
355 req_send (req);
356}
357
358static void min_parallel (int nthreads)
359{
360 if (wanted < nthreads)
361 wanted = nthreads;
362}
363
364static void max_parallel (int nthreads)
365{
366 int cur = started;
367
368 if (wanted > nthreads)
369 wanted = nthreads;
370
371 while (cur > wanted)
372 {
373 end_thread ();
374 cur--;
375 }
376
377 while (started > wanted)
378 {
379 poll_wait ();
380 poll_cb ();
381 }
382}
383
384static void create_pipe ()
385{
386 if (pipe (respipe))
387 croak ("unable to initialize result pipe");
388
389 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
390 croak ("cannot set result pipe to nonblocking mode");
391
392 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
393 croak ("cannot set result pipe to nonblocking mode");
394}
395
396/*****************************************************************************/
397/* work around various missing functions */
398
399#if !HAVE_PREADWRITE
400# define pread aio_pread
401# define pwrite aio_pwrite
402
403/*
404 * make our pread/pwrite safe against themselves, but not against
405 * normal read/write by using a mutex. slows down execution a lot,
406 * but that's your problem, not mine.
407 */
408static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
409
410static ssize_t
411pread (int fd, void *buf, size_t count, off_t offset)
412{
413 ssize_t res;
414 off_t ooffset;
415
416 pthread_mutex_lock (&preadwritelock);
417 ooffset = lseek (fd, 0, SEEK_CUR);
418 lseek (fd, offset, SEEK_SET);
419 res = read (fd, buf, count);
420 lseek (fd, ooffset, SEEK_SET);
421 pthread_mutex_unlock (&preadwritelock);
422
423 return res;
424}
425
426static ssize_t
427pwrite (int fd, void *buf, size_t count, off_t offset)
428{
429 ssize_t res;
430 off_t ooffset;
431
432 pthread_mutex_lock (&preadwritelock);
433 ooffset = lseek (fd, 0, SEEK_CUR);
434 lseek (fd, offset, SEEK_SET);
435 res = write (fd, buf, count);
436 lseek (fd, offset, SEEK_SET);
437 pthread_mutex_unlock (&preadwritelock);
438
439 return res;
440}
441#endif
442
443#if !HAVE_FDATASYNC
444# define fdatasync fsync
445#endif
446
447#if !HAVE_READAHEAD
448# define readahead aio_readahead
449
450static ssize_t
451readahead (int fd, off_t offset, size_t count)
452{
453 char readahead_buf[4096];
454
455 while (count > 0)
456 {
457 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
458
459 pread (fd, readahead_buf, len, offset);
460 offset += len;
461 count -= len;
462 }
463
464 errno = 0;
465}
466#endif
467
468#if !HAVE_READDIR_R
469# define readdir_r aio_readdir_r
470
471static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
472
473static int
474readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
475{
476 struct dirent *e;
477 int errorno;
478
479 pthread_mutex_lock (&readdirlock);
480
481 e = readdir (dirp);
482 errorno = errno;
483
484 if (e)
485 {
486 *res = ent;
487 strcpy (ent->d_name, e->d_name);
488 }
489 else
490 *res = 0;
491
492 pthread_mutex_unlock (&readdirlock);
493
494 errno = errorno;
495 return e ? 0 : -1;
496}
497#endif
498
499/* sendfile always needs emulation */
500static ssize_t
501sendfile_ (int ofd, int ifd, off_t offset, size_t count)
502{
503 ssize_t res;
504
505 if (!count)
506 return 0;
507
508#if HAVE_SENDFILE
509# if __linux
510 res = sendfile (ofd, ifd, &offset, count);
511
512# elif __freebsd
513 /*
514 * Of course, the freebsd sendfile is a dire hack with no thoughts
515 * wasted on making it similar to other I/O functions.
516 */
517 {
518 off_t sbytes;
519 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
520
521 if (res < 0 && sbytes)
522 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
523 res = sbytes;
524 }
525
526# elif __hpux
527 res = sendfile (ofd, ifd, offset, count, 0, 0);
528
529# elif __solaris
530 {
531 struct sendfilevec vec;
532 size_t sbytes;
533
534 vec.sfv_fd = ifd;
535 vec.sfv_flag = 0;
536 vec.sfv_off = offset;
537 vec.sfv_len = count;
538
539 res = sendfilev (ofd, &vec, 1, &sbytes);
540
541 if (res < 0 && sbytes)
542 res = sbytes;
543 }
544
545# endif
546#else
547 res = -1;
548 errno = ENOSYS;
549#endif
550
551 if (res < 0
552 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
553#if __solaris
554 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
555#endif
556 )
557 )
558 {
559 /* emulate sendfile. this is a major pain in the ass */
560 char buf[4096];
561 res = 0;
562
563 while (count)
564 { 868 {
565 ssize_t cnt; 869 *wd = (aio_wd)(long)SvIVX (rv);
566 870 *wdsv = SvREFCNT_inc_NN (rv);
567 cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset); 871 *ptr = ".";
568 872 return; /* path set to "." */
569 if (cnt <= 0)
570 {
571 if (cnt && !res) res = -1;
572 break;
573 }
574
575 cnt = write (ofd, buf, cnt);
576
577 if (cnt <= 0)
578 {
579 if (cnt && !res) res = -1;
580 break;
581 }
582
583 offset += cnt;
584 res += cnt;
585 count -= cnt;
586 }
587 }
588
589 return res;
590}
591
592/* read a full directory */
593static int
594scandir_ (const char *path, void **namesp)
595{
596 DIR *dirp = opendir (path);
597 union
598 {
599 struct dirent d;
600 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
601 } u;
602 struct dirent *entp;
603 char *name, *names;
604 int memlen = 4096;
605 int memofs = 0;
606 int res = 0;
607 int errorno;
608
609 if (!dirp)
610 return -1;
611
612 names = malloc (memlen);
613
614 for (;;)
615 {
616 errno = 0, readdir_r (dirp, &u.d, &entp);
617
618 if (!entp)
619 break;
620
621 name = entp->d_name;
622
623 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
624 {
625 int len = strlen (name) + 1;
626
627 res++;
628
629 while (memofs + len > memlen)
630 {
631 memlen *= 2;
632 names = realloc (names, memlen);
633 if (!names)
634 break;
635 }
636
637 memcpy (names + memofs, name, len);
638 memofs += len;
639 }
640 }
641
642 errorno = errno;
643 closedir (dirp);
644
645 if (errorno)
646 {
647 free (names);
648 errno = errorno;
649 res = -1;
650 }
651
652 *namesp = (void *)names;
653 return res;
654}
655
656/*****************************************************************************/
657
658static void *
659aio_proc (void *thr_arg)
660{
661 aio_req req;
662 int type;
663
664 do
665 {
666 pthread_mutex_lock (&reqlock);
667
668 for (;;)
669 {
670 req = reqs;
671
672 if (reqs)
673 {
674 reqs = reqs->next;
675 if (!reqs) reqe = 0;
676 }
677
678 if (req)
679 break;
680
681 pthread_cond_wait (&reqwait, &reqlock);
682 }
683
684 pthread_mutex_unlock (&reqlock);
685
686 errno = 0; /* strictly unnecessary */
687
688 if (!req->cancelled)
689 switch (req->type)
690 {
691 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
692 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
693
694 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
695 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
696
697 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
698 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
699 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
700
701 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
702 case REQ_CLOSE: req->result = close (req->fd); break;
703 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
704 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
705 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
706 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
707 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
708
709 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
710 case REQ_FSYNC: req->result = fsync (req->fd); break;
711 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
712
713 case REQ_QUIT:
714 break;
715
716 default:
717 req->result = ENOSYS;
718 break;
719 }
720
721 req->errorno = errno;
722
723 pthread_mutex_lock (&reslock);
724
725 req->next = 0;
726
727 if (rese)
728 {
729 rese->next = req;
730 rese = req;
731 } 873 }
732 else 874 else
733 { 875 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
734 rese = ress = req;
735
736 /* write a dummy byte to the pipe so fh becomes ready */
737 write (respipe [1], &respipe, 1);
738 }
739
740 pthread_mutex_unlock (&reslock);
741 } 876 }
742 while (type != REQ_QUIT);
743 877
744 return 0; 878 *pathsv = newSVsv (path);
879 *ptr = SvPVbyte_nolen (*pathsv);
745} 880}
746 881
747/*****************************************************************************/ 882static void ecb_noinline
748 883req_set_path1 (aio_req req, SV *path)
749static void atfork_prepare (void)
750{ 884{
751 pthread_mutex_lock (&reqlock); 885 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
752 pthread_mutex_lock (&reslock);
753#if !HAVE_PREADWRITE
754 pthread_mutex_lock (&preadwritelock);
755#endif
756#if !HAVE_READDIR_R
757 pthread_mutex_lock (&readdirlock);
758#endif
759} 886}
760 887
761static void atfork_parent (void) 888static void ecb_noinline
889req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
762{ 890{
763#if !HAVE_READDIR_R 891 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
764 pthread_mutex_unlock (&readdirlock);
765#endif
766#if !HAVE_PREADWRITE
767 pthread_mutex_unlock (&preadwritelock);
768#endif
769 pthread_mutex_unlock (&reslock);
770 pthread_mutex_unlock (&reqlock);
771}
772 892
773static void atfork_child (void) 893 switch (SvTYPE (rv))
774{
775 aio_req prv;
776
777 started = 0;
778
779 while (reqs)
780 { 894 {
781 prv = reqs; 895 case SVt_PVIO:
782 reqs = prv->next; 896 case SVt_PVLV:
783 req_free (prv); 897 case SVt_PVGV:
898 req->type = type_fh;
899 req->sv1 = newSVsv (fh_or_path);
900 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
901 break;
902
903 default:
904 req->type = type_path;
905 req_set_path1 (req, fh_or_path);
906 break;
784 } 907 }
785
786 reqs = reqe = 0;
787
788 while (ress)
789 {
790 prv = ress;
791 ress = prv->next;
792 req_free (prv);
793 }
794
795 ress = rese = 0;
796
797 close (respipe [0]);
798 close (respipe [1]);
799 create_pipe ();
800
801 atfork_parent ();
802} 908}
803 909
804#define dREQ \ 910XS(boot_IO__AIO) ecb_cold;
805 aio_req req; \
806 \
807 if (SvOK (callback) && !SvROK (callback)) \
808 croak ("callback must be undef or of reference type"); \
809 \
810 Newz (0, req, 1, aio_cb); \
811 if (!req) \
812 croak ("out of memory during aio_req allocation"); \
813 \
814 req->callback = newSVsv (callback)
815 911
816#define REQ_SEND \
817 req_send (req); \
818 \
819 if (GIMME_V != G_VOID) \
820 XPUSHs (req_sv (req, AIO_REQ_KLASS));
821
822MODULE = IO::AIO PACKAGE = IO::AIO 912MODULE = IO::AIO PACKAGE = IO::AIO
823 913
824PROTOTYPES: ENABLE 914PROTOTYPES: ENABLE
825 915
826BOOT: 916BOOT:
827{ 917{
918 static const struct {
919 const char *name;
920 IV iv;
921 } *civ, const_iv[] = {
922# define const_niv(name, value) { # name, (IV) value },
923# define const_iv(name) { # name, (IV) name },
924# define const_eio(name) { # name, (IV) EIO_ ## name },
925 const_iv (EXDEV)
926 const_iv (ENOSYS)
927 const_iv (O_RDONLY)
928 const_iv (O_WRONLY)
929 const_iv (O_RDWR)
930 const_iv (O_CREAT)
931 const_iv (O_TRUNC)
932 const_iv (O_EXCL)
933 const_iv (O_APPEND)
934
935 const_iv (O_ASYNC)
936 const_iv (O_DIRECT)
937 const_iv (O_NOATIME)
938
939 const_iv (O_CLOEXEC)
940 const_iv (O_NOCTTY)
941 const_iv (O_NOFOLLOW)
942 const_iv (O_NONBLOCK)
943 const_iv (O_EXEC)
944 const_iv (O_SEARCH)
945 const_iv (O_DIRECTORY)
946 const_iv (O_DSYNC)
947 const_iv (O_RSYNC)
948 const_iv (O_SYNC)
949 const_iv (O_TTY_INIT)
950
951 const_iv (S_IFIFO)
952 const_iv (S_IFCHR)
953 const_iv (S_IFBLK)
954 const_iv (S_IFLNK)
955 const_iv (S_IFREG)
956 const_iv (S_IFDIR)
957 const_iv (S_IFWHT)
958 const_iv (S_IFSOCK)
959 const_iv (S_IFMT)
960
961 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
962 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
963 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
964 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
965 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
966 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
967
968 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
969 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
970 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
971 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
972 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
973
974 const_iv (ST_RDONLY)
975 const_iv (ST_NOSUID)
976 const_iv (ST_NODEV)
977 const_iv (ST_NOEXEC)
978 const_iv (ST_SYNCHRONOUS)
979 const_iv (ST_MANDLOCK)
980 const_iv (ST_WRITE)
981 const_iv (ST_APPEND)
982 const_iv (ST_IMMUTABLE)
983 const_iv (ST_NOATIME)
984 const_iv (ST_NODIRATIME)
985 const_iv (ST_RELATIME)
986
987 const_iv (PROT_NONE)
988 const_iv (PROT_EXEC)
989 const_iv (PROT_READ)
990 const_iv (PROT_WRITE)
991
992 /*const_iv (MAP_FIXED)*/
993 const_iv (MAP_PRIVATE)
994 const_iv (MAP_SHARED)
995 const_iv (MAP_ANONYMOUS)
996
997 /* linuxish */
998 const_iv (MAP_HUGETLB)
999 const_iv (MAP_LOCKED)
1000 const_iv (MAP_NORESERVE)
1001 const_iv (MAP_POPULATE)
1002 const_iv (MAP_NONBLOCK)
1003
1004 const_eio (MCL_FUTURE)
1005 const_eio (MCL_CURRENT)
1006
1007 const_eio (MS_ASYNC)
1008 const_eio (MS_INVALIDATE)
1009 const_eio (MS_SYNC)
1010
1011 const_eio (MT_MODIFY)
1012
1013 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1014 const_eio (SYNC_FILE_RANGE_WRITE)
1015 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1016
1017 const_eio (FALLOC_FL_KEEP_SIZE)
1018
1019 const_eio (READDIR_DENTS)
1020 const_eio (READDIR_DIRS_FIRST)
1021 const_eio (READDIR_STAT_ORDER)
1022 const_eio (READDIR_FOUND_UNKNOWN)
1023
1024 const_eio (DT_UNKNOWN)
1025 const_eio (DT_FIFO)
1026 const_eio (DT_CHR)
1027 const_eio (DT_DIR)
1028 const_eio (DT_BLK)
1029 const_eio (DT_REG)
1030 const_eio (DT_LNK)
1031 const_eio (DT_SOCK)
1032 const_eio (DT_WHT)
1033 };
1034
828 HV *stash = gv_stashpv ("IO::AIO", 1); 1035 aio_stash = gv_stashpv ("IO::AIO" , 1);
829 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1036 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
830 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1037 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
831 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 1038 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
832 1039
833 create_pipe (); 1040 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
834 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 1041 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
835}
836 1042
1043 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1044
1045 reinit ();
1046}
1047
837void 1048void
838min_parallel (nthreads) 1049reinit ()
839 int nthreads 1050 PROTOTYPE:
1051
1052void
1053max_poll_reqs (unsigned int nreqs)
840 PROTOTYPE: $ 1054 PROTOTYPE: $
1055 CODE:
1056 eio_set_max_poll_reqs (nreqs);
841 1057
842void 1058void
843max_parallel (nthreads) 1059max_poll_time (double nseconds)
844 int nthreads
845 PROTOTYPE: $ 1060 PROTOTYPE: $
846
847int
848max_outstanding (nreqs)
849 int nreqs
850 PROTOTYPE: $
851 CODE: 1061 CODE:
852 RETVAL = max_outstanding; 1062 eio_set_max_poll_time (nseconds);
1063
1064void
1065min_parallel (unsigned int nthreads)
1066 PROTOTYPE: $
1067 CODE:
1068 eio_set_min_parallel (nthreads);
1069
1070void
1071max_parallel (unsigned int nthreads)
1072 PROTOTYPE: $
1073 CODE:
1074 eio_set_max_parallel (nthreads);
1075
1076void
1077max_idle (unsigned int nthreads)
1078 PROTOTYPE: $
1079 CODE:
1080 eio_set_max_idle (nthreads);
1081
1082void
1083idle_timeout (unsigned int seconds)
1084 PROTOTYPE: $
1085 CODE:
1086 eio_set_idle_timeout (seconds);
1087
1088void
1089max_outstanding (unsigned int maxreqs)
1090 PROTOTYPE: $
1091 CODE:
853 max_outstanding = nreqs; 1092 max_outstanding = maxreqs;
854 1093
855void 1094void
856aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1095aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
857 SV * pathname
858 int flags
859 int mode
860 SV * callback
861 PROTOTYPE: $$$;$
862 PPCODE: 1096 PPCODE:
863{ 1097{
864 dREQ; 1098 dREQ;
865 1099
866 req->type = REQ_OPEN; 1100 req->type = EIO_WD_OPEN;
867 req->data = newSVsv (pathname); 1101 req_set_path1 (req, pathname);
868 req->dataptr = SvPVbyte_nolen (req->data);
869 req->fd = flags;
870 req->mode = mode;
871 1102
872 REQ_SEND; 1103 REQ_SEND;
873} 1104}
874 1105
875void 1106void
1107aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1108 PPCODE:
1109{
1110 dREQ;
1111
1112 req->type = EIO_OPEN;
1113 req_set_path1 (req, pathname);
1114 req->int1 = flags;
1115 req->int2 = mode;
1116
1117 REQ_SEND;
1118}
1119
1120void
876aio_close (fh,callback=&PL_sv_undef) 1121aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
877 SV * fh
878 SV * callback
879 PROTOTYPE: $;$
880 ALIAS: 1122 ALIAS:
881 aio_close = REQ_CLOSE
882 aio_fsync = REQ_FSYNC 1123 aio_fsync = EIO_FSYNC
883 aio_fdatasync = REQ_FDATASYNC 1124 aio_fdatasync = EIO_FDATASYNC
1125 aio_syncfs = EIO_SYNCFS
884 PPCODE: 1126 PPCODE:
885{ 1127{
1128 int fd = s_fileno_croak (fh, 0);
886 dREQ; 1129 dREQ;
887 1130
888 req->type = ix; 1131 req->type = ix;
889 req->fh = newSVsv (fh); 1132 req->sv1 = newSVsv (fh);
890 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1133 req->int1 = fd;
891 1134
892 REQ_SEND (req); 1135 REQ_SEND (req);
893} 1136}
894 1137
895void 1138void
1139aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1140 PPCODE:
1141{
1142 int fd = s_fileno_croak (fh, 0);
1143 dREQ;
1144
1145 req->type = EIO_SYNC_FILE_RANGE;
1146 req->sv1 = newSVsv (fh);
1147 req->int1 = fd;
1148 req->offs = offset;
1149 req->size = nbytes;
1150 req->int2 = flags;
1151
1152 REQ_SEND (req);
1153}
1154
1155void
1156aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1157 PPCODE:
1158{
1159 int fd = s_fileno_croak (fh, 0);
1160 dREQ;
1161
1162 req->type = EIO_FALLOCATE;
1163 req->sv1 = newSVsv (fh);
1164 req->int1 = fd;
1165 req->int2 = mode;
1166 req->offs = offset;
1167 req->size = len;
1168
1169 REQ_SEND (req);
1170}
1171
1172void
1173aio_close (SV *fh, SV *callback=&PL_sv_undef)
1174 PPCODE:
1175{
1176 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1177 int fd = s_fileno_croak (fh, 0);
1178 dREQ;
1179
1180 if (expect_false (close_fd < 0))
1181 {
1182 int pipefd [2];
1183
1184 if (
1185#ifdef _WIN32
1186 _pipe (pipefd, 1, _O_BINARY) < 0
1187#else
1188 pipe (pipefd) < 0
1189 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1190#endif
1191 || close (pipefd [1]) < 0
1192 )
1193 abort (); /*D*/
1194
1195 close_fd = pipefd [0];
1196 }
1197
1198 req->type = EIO_DUP2;
1199 req->int1 = close_fd;
1200 req->sv2 = newSVsv (fh);
1201 req->int2 = fd;
1202
1203 REQ_SEND (req);
1204}
1205
1206void
896aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1207aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
897 SV * fh
898 UV offset
899 UV length
900 SV * data
901 UV dataoffset
902 SV * callback
903 ALIAS: 1208 ALIAS:
904 aio_read = REQ_READ 1209 aio_read = EIO_READ
905 aio_write = REQ_WRITE 1210 aio_write = EIO_WRITE
906 PROTOTYPE: $$$$$;$
907 PPCODE: 1211 PPCODE:
908{ 1212{
909 aio_req req;
910 STRLEN svlen; 1213 STRLEN svlen;
1214 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
911 char *svptr = SvPVbyte (data, svlen); 1215 char *svptr = SvPVbyte (data, svlen);
912 1216 UV len = SvUV (length);
913 SvUPGRADE (data, SVt_PV);
914 SvPOK_on (data);
915 1217
916 if (dataoffset < 0) 1218 if (dataoffset < 0)
917 dataoffset += svlen; 1219 dataoffset += svlen;
918 1220
919 if (dataoffset < 0 || dataoffset > svlen) 1221 if (dataoffset < 0 || dataoffset > svlen)
920 croak ("data offset outside of string"); 1222 croak ("dataoffset outside of data scalar");
921 1223
922 if (ix == REQ_WRITE) 1224 if (ix == EIO_WRITE)
923 { 1225 {
924 /* write: check length and adjust. */ 1226 /* write: check length and adjust. */
925 if (length < 0 || length + dataoffset > svlen) 1227 if (!SvOK (length) || len + dataoffset > svlen)
926 length = svlen - dataoffset; 1228 len = svlen - dataoffset;
927 } 1229 }
928 else 1230 else
929 { 1231 {
930 /* read: grow scalar as necessary */ 1232 /* read: check type and grow scalar as necessary */
1233 SvUPGRADE (data, SVt_PV);
931 svptr = SvGROW (data, length + dataoffset); 1234 svptr = SvGROW (data, len + dataoffset + 1);
932 } 1235 }
933
934 if (length < 0)
935 croak ("length must not be negative");
936 1236
937 { 1237 {
938 dREQ; 1238 dREQ;
939 1239
940 req->type = ix; 1240 req->type = ix;
941 req->fh = newSVsv (fh); 1241 req->sv1 = newSVsv (fh);
942 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1242 req->int1 = fd;
943 : IoOFP (sv_2io (fh))); 1243 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
944 req->offset = offset; 1244 req->size = len;
945 req->length = length;
946 req->data = SvREFCNT_inc (data); 1245 req->sv2 = SvREFCNT_inc (data);
947 req->dataptr = (char *)svptr + dataoffset; 1246 req->ptr2 = (char *)svptr + dataoffset;
1247 req->stroffset = dataoffset;
948 1248
949 if (!SvREADONLY (data)) 1249 if (!SvREADONLY (data))
950 { 1250 {
951 SvREADONLY_on (data); 1251 SvREADONLY_on (data);
952 req->data2ptr = (void *)data; 1252 req->flags |= FLAG_SV2_RO_OFF;
953 } 1253 }
954 1254
955 REQ_SEND; 1255 REQ_SEND;
956 } 1256 }
957} 1257}
958 1258
959void 1259void
960aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1260aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
961 SV * out_fh 1261 ALIAS:
962 SV * in_fh 1262 aio_readlink = EIO_READLINK
963 UV in_offset 1263 aio_realpath = EIO_REALPATH
964 UV length
965 SV * callback
966 PROTOTYPE: $$$$;$
967 PPCODE: 1264 PPCODE:
968{ 1265{
1266 dREQ;
1267
1268 req->type = ix;
1269 req_set_path1 (req, pathname);
1270
1271 REQ_SEND;
1272}
1273
1274void
1275aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1276 PPCODE:
1277{
1278 int ifd = s_fileno_croak (in_fh , 0);
1279 int ofd = s_fileno_croak (out_fh, 1);
969 dREQ; 1280 dREQ;
970 1281
971 req->type = REQ_SENDFILE; 1282 req->type = EIO_SENDFILE;
972 req->fh = newSVsv (out_fh); 1283 req->sv1 = newSVsv (out_fh);
973 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1284 req->int1 = ofd;
974 req->fh2 = newSVsv (in_fh); 1285 req->sv2 = newSVsv (in_fh);
975 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1286 req->int2 = ifd;
976 req->offset = in_offset; 1287 req->offs = in_offset;
977 req->length = length; 1288 req->size = length;
978 1289
979 REQ_SEND; 1290 REQ_SEND;
980} 1291}
981 1292
982void 1293void
983aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1294aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
984 SV * fh
985 UV offset
986 IV length
987 SV * callback
988 PROTOTYPE: $$$;$
989 PPCODE: 1295 PPCODE:
990{ 1296{
1297 int fd = s_fileno_croak (fh, 0);
991 dREQ; 1298 dREQ;
992 1299
993 req->type = REQ_READAHEAD; 1300 req->type = EIO_READAHEAD;
994 req->fh = newSVsv (fh); 1301 req->sv1 = newSVsv (fh);
995 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1302 req->int1 = fd;
996 req->offset = offset; 1303 req->offs = offset;
997 req->length = length; 1304 req->size = length;
998 1305
999 REQ_SEND; 1306 REQ_SEND;
1000} 1307}
1001 1308
1002void 1309void
1003aio_stat (fh_or_path,callback=&PL_sv_undef) 1310aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1004 SV * fh_or_path
1005 SV * callback
1006 ALIAS: 1311 ALIAS:
1007 aio_stat = REQ_STAT 1312 aio_stat = EIO_STAT
1008 aio_lstat = REQ_LSTAT 1313 aio_lstat = EIO_LSTAT
1314 aio_statvfs = EIO_STATVFS
1009 PPCODE: 1315 PPCODE:
1010{ 1316{
1011 dREQ; 1317 dREQ;
1012 1318
1013 New (0, req->statdata, 1, Stat_t); 1319 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1014 if (!req->statdata)
1015 {
1016 req_free (req);
1017 croak ("out of memory during aio_req->statdata allocation");
1018 }
1019
1020 if (SvPOK (fh_or_path))
1021 {
1022 req->type = ix;
1023 req->data = newSVsv (fh_or_path);
1024 req->dataptr = SvPVbyte_nolen (req->data);
1025 }
1026 else
1027 {
1028 req->type = REQ_FSTAT;
1029 req->fh = newSVsv (fh_or_path);
1030 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1031 }
1032 1320
1033 REQ_SEND; 1321 REQ_SEND;
1034} 1322}
1035 1323
1324UV
1325major (UV dev)
1326 ALIAS:
1327 minor = 1
1328 CODE:
1329 RETVAL = ix ? major (dev) : minor (dev);
1330 OUTPUT:
1331 RETVAL
1332
1333UV
1334makedev (UV maj, UV min)
1335 CODE:
1336 RETVAL = makedev (maj, min);
1337 OUTPUT:
1338 RETVAL
1339
1036void 1340void
1341aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1342 PPCODE:
1343{
1344 dREQ;
1345
1346 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1347 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1348 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1349
1350 REQ_SEND;
1351}
1352
1353void
1354aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1355 PPCODE:
1356{
1357 dREQ;
1358
1359 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1360 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1361
1362 REQ_SEND;
1363}
1364
1365void
1366aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1367 PPCODE:
1368{
1369 dREQ;
1370
1371 req->int2 = mode;
1372 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1373
1374 REQ_SEND;
1375}
1376
1377void
1378aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1379 PPCODE:
1380{
1381 dREQ;
1382
1383 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1384 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1385 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1386
1387 REQ_SEND;
1388}
1389
1390void
1391aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1392 PPCODE:
1393{
1394 dREQ;
1395
1396 req->type = EIO_READDIR;
1397 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1398
1399 if (flags & EIO_READDIR_DENTS)
1400 req->int1 |= EIO_READDIR_CUSTOM2;
1401
1402 req_set_path1 (req, pathname);
1403
1404 REQ_SEND;
1405}
1406
1407void
1408aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1409 PPCODE:
1410{
1411 dREQ;
1412
1413 req->type = EIO_MKDIR;
1414 req->int2 = mode;
1415 req_set_path1 (req, pathname);
1416
1417 REQ_SEND;
1418}
1419
1420void
1037aio_unlink (pathname,callback=&PL_sv_undef) 1421aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1038 SV * pathname
1039 SV * callback
1040 ALIAS: 1422 ALIAS:
1041 aio_unlink = REQ_UNLINK 1423 aio_unlink = EIO_UNLINK
1042 aio_rmdir = REQ_RMDIR 1424 aio_rmdir = EIO_RMDIR
1043 aio_readdir = REQ_READDIR 1425 aio_readdir = EIO_READDIR
1044 PPCODE: 1426 PPCODE:
1045{ 1427{
1046 dREQ; 1428 dREQ;
1047 1429
1048 req->type = ix; 1430 req->type = ix;
1049 req->data = newSVsv (pathname); 1431 req_set_path1 (req, pathname);
1050 req->dataptr = SvPVbyte_nolen (req->data); 1432
1433 REQ_SEND;
1434}
1435
1436void
1437aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1438 ALIAS:
1439 aio_link = EIO_LINK
1440 aio_symlink = EIO_SYMLINK
1441 aio_rename = EIO_RENAME
1442 PPCODE:
1443{
1444 dREQ;
1445 eio_wd wd2 = 0;
1446
1447 req->type = ix;
1448 req_set_path1 (req, oldpath);
1449 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1450 req->int3 = (long)wd2;
1051 1451
1052 REQ_SEND; 1452 REQ_SEND;
1053} 1453}
1054 1454
1055void 1455void
1056aio_link (oldpath,newpath,callback=&PL_sv_undef) 1456aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1057 SV * oldpath
1058 SV * newpath
1059 SV * callback
1060 ALIAS:
1061 aio_link = REQ_LINK
1062 aio_symlink = REQ_SYMLINK
1063 aio_rename = REQ_RENAME
1064 PPCODE: 1457 PPCODE:
1065{ 1458{
1066 dREQ; 1459 dREQ;
1067 1460
1068 req->type = ix; 1461 req->type = EIO_MKNOD;
1069 req->fh = newSVsv (oldpath); 1462 req->int2 = (mode_t)mode;
1070 req->data2ptr = SvPVbyte_nolen (req->fh); 1463 req->offs = dev;
1071 req->data = newSVsv (newpath); 1464 req_set_path1 (req, pathname);
1072 req->dataptr = SvPVbyte_nolen (req->data);
1073 1465
1074 REQ_SEND; 1466 REQ_SEND;
1075} 1467}
1076 1468
1077void 1469void
1078aio_group (callback=&PL_sv_undef) 1470aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1079 SV * callback 1471 ALIAS:
1080 PROTOTYPE: ;& 1472 aio_mtouch = EIO_MTOUCH
1473 aio_msync = EIO_MSYNC
1081 PPCODE: 1474 PPCODE:
1082{ 1475{
1476 STRLEN svlen;
1477 char *svptr = SvPVbyte (data, svlen);
1478 UV len = SvUV (length);
1479
1480 if (offset < 0)
1481 offset += svlen;
1482
1483 if (offset < 0 || offset > svlen)
1484 croak ("offset outside of scalar");
1485
1486 if (!SvOK (length) || len + offset > svlen)
1487 len = svlen - offset;
1488
1489 {
1490 dREQ;
1491
1492 req->type = ix;
1493 req->sv2 = SvREFCNT_inc (data);
1494 req->ptr2 = (char *)svptr + offset;
1495 req->size = len;
1496 req->int1 = flags;
1497
1498 REQ_SEND;
1499 }
1500}
1501
1502void
1503aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1504 PPCODE:
1505{
1506 STRLEN svlen;
1507 char *svptr = SvPVbyte (data, svlen);
1508 UV len = SvUV (length);
1509
1510 if (offset < 0)
1511 offset += svlen;
1512
1513 if (offset < 0 || offset > svlen)
1514 croak ("offset outside of scalar");
1515
1516 if (!SvOK (length) || len + offset > svlen)
1517 len = svlen - offset;
1518
1519 {
1520 dREQ;
1521
1522 req->type = EIO_MLOCK;
1523 req->sv2 = SvREFCNT_inc (data);
1524 req->ptr2 = (char *)svptr + offset;
1525 req->size = len;
1526
1527 REQ_SEND;
1528 }
1529}
1530
1531void
1532aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1533 PPCODE:
1534{
1535 dREQ;
1536
1537 req->type = EIO_MLOCKALL;
1538 req->int1 = flags;
1539
1540 REQ_SEND;
1541}
1542
1543void
1544aio_busy (double delay, SV *callback=&PL_sv_undef)
1545 PPCODE:
1546{
1083 dREQ; 1547 dREQ;
1548
1549 req->type = EIO_BUSY;
1550 req->nv1 = delay < 0. ? 0. : delay;
1551
1552 REQ_SEND;
1553}
1554
1555void
1556aio_group (SV *callback=&PL_sv_undef)
1557 PPCODE:
1558{
1559 dREQ;
1560
1084 req->type = REQ_GROUP; 1561 req->type = EIO_GROUP;
1562
1563 req_submit (req);
1085 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1564 XPUSHs (req_sv (req, aio_grp_stash));
1086} 1565}
1566
1567void
1568aio_nop (SV *callback=&PL_sv_undef)
1569 ALIAS:
1570 aio_nop = EIO_NOP
1571 aio_sync = EIO_SYNC
1572 PPCODE:
1573{
1574 dREQ;
1575
1576 req->type = ix;
1577
1578 REQ_SEND;
1579}
1580
1581int
1582aioreq_pri (int pri = 0)
1583 CODE:
1584 RETVAL = next_pri;
1585 if (items > 0)
1586 {
1587 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1588 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1589 next_pri = pri;
1590 }
1591 OUTPUT:
1592 RETVAL
1593
1594void
1595aioreq_nice (int nice = 0)
1596 CODE:
1597 nice = next_pri - nice;
1598 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1599 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1600 next_pri = nice;
1087 1601
1088void 1602void
1089flush () 1603flush ()
1090 PROTOTYPE:
1091 CODE: 1604 CODE:
1092 while (nreqs) 1605 while (eio_nreqs ())
1093 { 1606 {
1094 poll_wait (); 1607 poll_wait ();
1095 poll_cb (); 1608 poll_cb ();
1096 } 1609 }
1097 1610
1098void 1611int
1099poll() 1612poll ()
1100 PROTOTYPE:
1101 CODE: 1613 CODE:
1102 if (nreqs)
1103 {
1104 poll_wait (); 1614 poll_wait ();
1105 poll_cb (); 1615 RETVAL = poll_cb ();
1106 }
1107
1108int
1109poll_fileno()
1110 PROTOTYPE:
1111 CODE:
1112 RETVAL = respipe [0];
1113 OUTPUT: 1616 OUTPUT:
1114 RETVAL 1617 RETVAL
1115 1618
1116int 1619int
1620poll_fileno ()
1621 CODE:
1622 RETVAL = s_epipe_fd (&respipe);
1623 OUTPUT:
1624 RETVAL
1625
1626int
1117poll_cb(...) 1627poll_cb (...)
1118 PROTOTYPE: 1628 PROTOTYPE:
1119 CODE: 1629 CODE:
1120 RETVAL = poll_cb (); 1630 RETVAL = poll_cb ();
1121 OUTPUT: 1631 OUTPUT:
1122 RETVAL 1632 RETVAL
1123 1633
1124void 1634void
1125poll_wait() 1635poll_wait ()
1126 PROTOTYPE:
1127 CODE: 1636 CODE:
1128 if (nreqs)
1129 poll_wait (); 1637 poll_wait ();
1130 1638
1131int 1639int
1132nreqs() 1640nreqs ()
1133 PROTOTYPE:
1134 CODE: 1641 CODE:
1135 RETVAL = nreqs; 1642 RETVAL = eio_nreqs ();
1136 OUTPUT: 1643 OUTPUT:
1137 RETVAL 1644 RETVAL
1138 1645
1646int
1647nready ()
1648 CODE:
1649 RETVAL = eio_nready ();
1650 OUTPUT:
1651 RETVAL
1652
1653int
1654npending ()
1655 CODE:
1656 RETVAL = eio_npending ();
1657 OUTPUT:
1658 RETVAL
1659
1660int
1661nthreads ()
1662 CODE:
1663 RETVAL = eio_nthreads ();
1664 OUTPUT:
1665 RETVAL
1666
1667int
1668fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1669 CODE:
1670 RETVAL = posix_fadvise (fh, offset, length, advice);
1671 OUTPUT:
1672 RETVAL
1673
1674IV
1675sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1676 CODE:
1677 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1678 OUTPUT:
1679 RETVAL
1680
1681void
1682mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1683 PPCODE:
1684 sv_unmagic (scalar, MMAP_MAGIC);
1685{
1686 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1687 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1688 if (addr == (void *)-1)
1689 XSRETURN_NO;
1690
1691 sv_force_normal (scalar);
1692
1693 /* we store the length in mg_obj, as namlen is I32 :/ */
1694 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1695 ->mg_obj = (SV *)length;
1696
1697 SvUPGRADE (scalar, SVt_PV); /* nop... */
1698
1699 if (!(prot & PROT_WRITE))
1700 SvREADONLY_on (scalar);
1701
1702 if (SvLEN (scalar))
1703 Safefree (SvPVX (scalar));
1704
1705 SvPVX (scalar) = (char *)addr;
1706 SvCUR_set (scalar, length);
1707 SvLEN_set (scalar, 0);
1708 SvPOK_only (scalar);
1709
1710 XSRETURN_YES;
1711}
1712
1713void
1714munmap (SV *scalar)
1715 CODE:
1716 sv_unmagic (scalar, MMAP_MAGIC);
1717
1718int
1719madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1720 ALIAS:
1721 mprotect = 1
1722 CODE:
1723{
1724 STRLEN svlen;
1725 void *addr = SvPVbyte (scalar, svlen);
1726 size_t len = SvUV (length);
1727
1728 if (offset < 0)
1729 offset += svlen;
1730
1731 if (offset < 0 || offset > svlen)
1732 croak ("offset outside of scalar");
1733
1734 if (!SvOK (length) || len + offset > svlen)
1735 len = svlen - offset;
1736
1737 addr = (void *)(((intptr_t)addr) + offset);
1738 eio_page_align (&addr, &len);
1739
1740 switch (ix)
1741 {
1742 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1743 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1744 }
1745}
1746 OUTPUT:
1747 RETVAL
1748
1749int
1750munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1751 CODE:
1752{
1753 STRLEN svlen;
1754 void *addr = SvPVbyte (scalar, svlen);
1755 size_t len = SvUV (length);
1756
1757 if (offset < 0)
1758 offset += svlen;
1759
1760 if (offset < 0 || offset > svlen)
1761 croak ("offset outside of scalar");
1762
1763 if (!SvOK (length) || len + offset > svlen)
1764 len = svlen - offset;
1765
1766 addr = (void *)(((intptr_t)addr) + offset);
1767 eio_page_align (&addr, &len);
1768#if _POSIX_MEMLOCK_RANGE
1769 RETVAL = munlock (addr, len);
1770#else
1771 RETVAL = ((errno = ENOSYS), -1);
1772#endif
1773}
1774 OUTPUT:
1775 RETVAL
1776
1777int
1778munlockall ()
1779 CODE:
1780#if _POSIX_MEMLOCK
1781 munlockall ();
1782#else
1783 RETVAL = -1;
1784 errno = ENOSYS;
1785#endif
1786 OUTPUT:
1787 RETVAL
1788
1789void _on_next_submit (SV *cb)
1790 CODE:
1791 SvREFCNT_dec (on_next_submit);
1792 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1793
1794PROTOTYPES: DISABLE
1795
1796MODULE = IO::AIO PACKAGE = IO::AIO::WD
1797
1798BOOT:
1799{
1800 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1801 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1802}
1803
1804void
1805DESTROY (SV *self)
1806 CODE:
1807{
1808 aio_wd wd = SvAIO_WD (self);
1809#if HAVE_AT
1810 {
1811 SV *callback = &PL_sv_undef;
1812 dREQ; /* clobbers next_pri :/ */
1813 next_pri = req->pri; /* restore next_pri */
1814 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1815 req->type = EIO_WD_CLOSE;
1816 req->wd = wd;
1817 REQ_SEND;
1818 }
1819#else
1820 eio_wd_close_sync (wd);
1821#endif
1822}
1823
1139MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1824MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1140 1825
1141void 1826void
1142cancel (aio_req_ornot req) 1827cancel (aio_req_ornot req)
1143 PROTOTYPE:
1144 CODE: 1828 CODE:
1145 req->cancelled = 1; 1829 eio_cancel (req);
1146 1830
1831void
1832cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1833 PPCODE:
1834{
1835 if (GIMME_V != G_VOID)
1836 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1837
1838 if (items > 1)
1839 {
1840 SV *cb_cv =get_cb (callback);
1841
1842 SvREFCNT_dec (req->callback);
1843 req->callback = SvREFCNT_inc (cb_cv);
1844 }
1845}
1846
1847MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1848
1849void
1850add (aio_req grp, ...)
1851 PPCODE:
1852{
1853 int i;
1854
1855 if (grp->int1 == 2)
1856 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1857
1858 for (i = 1; i < items; ++i )
1859 {
1860 aio_req req;
1861
1862 if (GIMME_V != G_VOID)
1863 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1864
1865 req = SvAIO_REQ (ST (i));
1866
1867 if (req)
1868 eio_grp_add (grp, req);
1869 }
1870}
1871
1872void
1873cancel_subs (aio_req_ornot req)
1874 CODE:
1875 req_cancel_subs (req);
1876
1877void
1878result (aio_req grp, ...)
1879 CODE:
1880{
1881 int i;
1882 AV *av;
1883
1884 grp->errorno = errno;
1885
1886 av = newAV ();
1887 av_extend (av, items - 1);
1888
1889 for (i = 1; i < items; ++i )
1890 av_push (av, newSVsv (ST (i)));
1891
1892 SvREFCNT_dec (grp->sv1);
1893 grp->sv1 = (SV *)av;
1894}
1895
1896void
1897errno (aio_req grp, int errorno = errno)
1898 CODE:
1899 grp->errorno = errorno;
1900
1901void
1902limit (aio_req grp, int limit)
1903 CODE:
1904 eio_grp_limit (grp, limit);
1905
1906void
1907feed (aio_req grp, SV *callback=&PL_sv_undef)
1908 CODE:
1909{
1910 SvREFCNT_dec (grp->sv2);
1911 grp->sv2 = newSVsv (callback);
1912 grp->feed = aio_grp_feed;
1913
1914 if (grp->int2 <= 0)
1915 grp->int2 = 2;
1916
1917 eio_grp_limit (grp, grp->int2);
1918}
1919

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