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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.52 by root, Sun Oct 22 22:14:54 2006 UTC vs.
Revision 1.213 by root, Tue Apr 10 05:01:33 2012 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/time.h>
15#include <sys/select.h>
16#include <sys/types.h> 14#include <sys/types.h>
17#include <sys/stat.h> 15#include <sys/stat.h>
18#include <limits.h> 16#include <limits.h>
19#include <unistd.h>
20#include <fcntl.h> 17#include <fcntl.h>
21#include <signal.h>
22#include <sched.h> 18#include <sched.h>
23 19
24#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21# include <sys/mman.h>
22#endif
23
25# if __linux 24#if __linux__
25# include <linux/fs.h>
26# ifdef FS_IOC_FIEMAP
27# include <linux/types.h>
28# include <linux/fiemap.h>
29# define HAVE_FIEMAP 1
30# endif
31#endif
32
33/* perl namespace pollution */
34#undef VERSION
35
36/* perl stupidly overrides readdir and maybe others */
37/* with thread-unsafe versions, imagine that :( */
38#undef readdir
39#undef opendir
40#undef closedir
41
42#ifdef _WIN32
43
44 // perl overrides all those nice libc functions
45
46 #undef malloc
47 #undef free
48 #undef open
49 #undef read
50 #undef write
51 #undef send
52 #undef recv
53 #undef stat
54 #undef lstat
55 #undef fstat
56 #undef truncate
57 #undef ftruncate
58 #undef open
59 #undef link
60 #undef close
61 #undef unlink
62 #undef mkdir
63 #undef rmdir
64 #undef rename
65 #undef lseek
66 #undef opendir
67 #undef readdir
68 #undef closedir
69 #undef chmod
70 #undef fchmod
71 #undef dup
72 #undef dup2
73 #undef abort
74 #undef pipe
75
76 #define EIO_STRUCT_STAT struct _stati64
77 #define EIO_STRUCT_STATI64
78
79#else
80
81 #include <sys/time.h>
26# include <sys/sendfile.h> 82 #include <sys/select.h>
27# elif __freebsd 83 #include <unistd.h>
28# include <sys/socket.h> 84 #include <utime.h>
29# include <sys/uio.h> 85 #include <signal.h>
30# elif __hpux 86
31# include <sys/socket.h> 87 #define EIO_STRUCT_STAT Stat_t
32# elif __solaris /* not yet */ 88
33# include <sys/sendfile.h> 89#endif
90
91/*****************************************************************************/
92
93#if __GNUC__ >= 3
94# define expect(expr,value) __builtin_expect ((expr),(value))
95#else
96# define expect(expr,value) (expr)
97#endif
98
99#define expect_false(expr) expect ((expr) != 0, 0)
100#define expect_true(expr) expect ((expr) != 0, 1)
101
102/*****************************************************************************/
103
104typedef SV SV8; /* byte-sv, used for argument-checking */
105typedef int aio_rfd; /* read file desriptor */
106typedef int aio_wfd; /* write file descriptor */
107
108static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
109
110#define EIO_REQ_MEMBERS \
111 SV *callback; \
112 SV *sv1, *sv2; \
113 SV *sv3, *sv4; \
114 STRLEN stroffset; \
115 SV *self;
116
117#define EIO_NO_WRAPPERS 1
118
119#include "libeio/config.h"
120#include "libeio/eio.h"
121
122static int req_invoke (eio_req *req);
123#define EIO_FINISH(req) req_invoke (req)
124static void req_destroy (eio_req *grp);
125#define EIO_DESTROY(req) req_destroy (req)
126
127#include "libeio/eio.c"
128
129#if !HAVE_POSIX_FADVISE
130# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
131#endif
132
133#if !HAVE_POSIX_MADVISE
134# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
135#endif
136
137#ifndef MAP_ANONYMOUS
138# ifdef MAP_ANON
139# define MAP_ANONYMOUS MAP_ANON
34# else 140# else
35# error sendfile support requested but not available 141# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
36# endif 142# endif
37#endif 143#endif
38 144
39/* used for struct dirent, AIX doesn't provide it */ 145/* defines all sorts of constants to 0 unless they are already defined */
40#ifndef NAME_MAX 146#include "def0.h"
41# define NAME_MAX 4096
42#endif
43 147
44#if __ia64 148#ifndef makedev
45# define STACKSIZE 65536 149# define makedev(maj,min) (((maj) << 8) | (min))
150#endif
151#ifndef major
152# define major(dev) ((dev) >> 8)
153#endif
154#ifndef minor
155# define minor(dev) ((dev) & 0xff)
156#endif
157
158#ifndef PAGESIZE
159# define PAGESIZE sysconf (_SC_PAGESIZE)
160#endif
161
162/*****************************************************************************/
163
164static void
165fiemap (eio_req *req)
166{
167 req->result = -1;
168
169#if HAVE_FIEMAP
170 int count = req->int3;
171
172 /* heuristic: first try with 64 extents if we don't know how many, */
173 /* as most files have (hopefully) fewer than this many extents */
174 /* in fact, most should have <= 2, so maybe the 72 below is probably overkill */
175 if (count < 0)
176 count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
177
178 for (;;)
179 {
180 struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
181 errno = ENOMEM;
182 if (!fiemap)
183 return;
184
185 req->ptr1 = fiemap;
186 req->flags |= EIO_FLAG_PTR1_FREE;
187
188 fiemap->fm_start = req->offs;
189 fiemap->fm_length = req->size;
190 fiemap->fm_flags = req->int2;
191 fiemap->fm_extent_count = count;
192
193 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
194 return;
195
196 if (req->int3 >= 0)
197 break; /* when not autosizing we are done */
198
199 if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
200 break; /* autosizing successful, we are done */
201
202 fiemap->fm_flags = req->int2;
203 fiemap->fm_extent_count = 0;
204
205 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
206 return;
207
208 count = fiemap->fm_mapped_extents;
209
210 free (fiemap);
211 }
212
213 req->result = 0;
214
46#else 215#else
47# define STACKSIZE 8192 216 errno = ENOSYS;
48#endif 217#endif
218}
219
220/*****************************************************************************/
49 221
50enum { 222enum {
51 REQ_QUIT, 223 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_SLEEP,
61 REQ_GROUP,
62}; 224};
63 225
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; 226typedef eio_req *aio_req;
92typedef aio_cb *aio_req_ornot; 227typedef eio_req *aio_req_ornot;
228typedef eio_wd aio_wd;
93 229
94static int started, wanted; 230static SV *on_next_submit;
95static volatile int nreqs; 231static int next_pri = EIO_PRI_DEFAULT;
96static int max_outstanding = 1<<30; 232static int max_outstanding;
97static int respipe [2];
98 233
99static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 234static s_epipe respipe;
100static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
101static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
102 235
103static volatile aio_req reqs, reqe; /* queue start, queue end */ 236static void req_destroy (aio_req req);
104static volatile aio_req ress, rese; /* queue start, queue end */
105
106static void req_invoke (aio_req req); 237static void req_cancel (aio_req req);
107static void req_free (aio_req req); 238
239static void
240want_poll (void)
241{
242 /* write a dummy byte to the pipe so fh becomes ready */
243 s_epipe_signal (&respipe);
244}
245
246static void
247done_poll (void)
248{
249 /* read any signals sent by the worker threads */
250 s_epipe_drain (&respipe);
251}
108 252
109/* must be called at most once */ 253/* must be called at most once */
110static SV *req_sv (aio_req req, const char *klass) 254static SV *
255req_sv (aio_req req, HV *stash)
111{ 256{
112 if (!req->self) 257 if (!req->self)
113 { 258 {
114 req->self = (SV *)newHV (); 259 req->self = (SV *)newHV ();
115 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 260 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
116 } 261 }
117 262
118 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 263 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
119} 264}
120 265
121static aio_req SvAIO_REQ (SV *sv) 266static SV *
267newSVaio_wd (aio_wd wd)
122{ 268{
123 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 269 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
270}
271
272static aio_req
273SvAIO_REQ (SV *sv)
274{
275 MAGIC *mg;
276
277 if (!SvROK (sv)
278 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
279 || (SvSTASH (SvRV (sv)) != aio_grp_stash
280 && SvSTASH (SvRV (sv)) != aio_req_stash
281 && !sv_derived_from (sv, "IO::AIO::REQ")))
124 croak ("object of class " AIO_REQ_KLASS " expected"); 282 croak ("object of class IO::AIO::REQ expected");
125 283
126 MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 284 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
127 285
128 return mg ? (aio_req)mg->mg_ptr : 0; 286 return mg ? (aio_req)mg->mg_ptr : 0;
129} 287}
130 288
289static aio_wd
290SvAIO_WD (SV *sv)
291{
292 if (!SvROK (sv)
293 || SvTYPE (SvRV (sv)) != SVt_PVMG
294 || SvSTASH (SvRV (sv)) != aio_wd_stash)
295 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
296
297 return (aio_wd)(long)SvIVX (SvRV (sv));
298}
299
300static void
131static void aio_grp_feed (aio_req grp) 301aio_grp_feed (aio_req grp)
132{ 302{
133 while (grp->length < grp->fd2) 303 if (grp->sv2 && SvOK (grp->sv2))
134 { 304 {
135 int old_len = grp->length; 305 dSP;
136 306
137 if (grp->fh2 && SvOK (grp->fh2)) 307 ENTER;
308 SAVETMPS;
309 PUSHMARK (SP);
310 XPUSHs (req_sv (grp, aio_grp_stash));
311 PUTBACK;
312 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
313 SPAGAIN;
314 FREETMPS;
315 LEAVE;
316 }
317}
318
319static void
320req_submit (eio_req *req)
321{
322 eio_submit (req);
323
324 if (expect_false (on_next_submit))
325 {
326 dSP;
327 SV *cb = sv_2mortal (on_next_submit);
328
329 on_next_submit = 0;
330
331 PUSHMARK (SP);
332 PUTBACK;
333 call_sv (cb, G_DISCARD | G_EVAL);
334 }
335}
336
337static int
338req_invoke (eio_req *req)
339{
340 if (req->flags & FLAG_SV2_RO_OFF)
341 SvREADONLY_off (req->sv2);
342
343 if (!EIO_CANCELLED (req) && req->callback)
344 {
345 dSP;
346 static SV *sv_result_cache; /* caches the result integer SV */
347 SV *sv_result;
348
349 ENTER;
350 SAVETMPS;
351 PUSHMARK (SP);
352 EXTEND (SP, 1);
353
354 /* do not recreate the result IV from scratch each time */
355 if (expect_true (sv_result_cache))
138 { 356 {
139 dSP; 357 sv_result = sv_result_cache; sv_result_cache = 0;
140 358 SvIV_set (sv_result, req->result);
141 ENTER; 359 SvIOK_only (sv_result);
142 SAVETMPS;
143 PUSHMARK (SP);
144 XPUSHs (req_sv (grp, AIO_GRP_KLASS));
145 PUTBACK;
146 call_sv (grp->fh2, G_VOID | G_EVAL);
147 SPAGAIN;
148 FREETMPS;
149 LEAVE;
150 } 360 }
151 361 else
152 /* stop if no progress has been made */
153 if (old_len == grp->length)
154 { 362 {
155 SvREFCNT_dec (grp->fh2); 363 sv_result = newSViv (req->result);
156 grp->fh2 = 0; 364 SvREADONLY_on (sv_result);
157 break;
158 } 365 }
366
367 switch (req->type)
368 {
369 case EIO_WD_OPEN:
370 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
371 break;
372
373 case EIO_READDIR:
374 {
375 SV *rv = &PL_sv_undef;
376
377 if (req->result >= 0)
378 {
379 int i;
380 char *names = (char *)req->ptr2;
381 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
382 AV *av = newAV ();
383
384 av_extend (av, req->result - 1);
385
386 for (i = 0; i < req->result; ++i)
387 {
388 if (req->int1 & EIO_READDIR_DENTS)
389 {
390 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
391
392 if (req->int1 & EIO_READDIR_CUSTOM2)
393 {
394 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
395 AV *avent = newAV ();
396
397 av_extend (avent, 2);
398
399 if (!sv_type [ent->type])
400 {
401 sv_type [ent->type] = newSViv (ent->type);
402 SvREADONLY_on (sv_type [ent->type]);
403 }
404
405 av_store (avent, 0, namesv);
406 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
407 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
408
409 av_store (av, i, newRV_noinc ((SV *)avent));
410 }
411 else
412 av_store (av, i, namesv);
413
414 ++ent;
415 }
416 else
417 {
418 SV *name = newSVpv (names, 0);
419 av_store (av, i, name);
420 names += SvCUR (name) + 1;
421 }
422 }
423
424 rv = sv_2mortal (newRV_noinc ((SV *)av));
425 }
426
427 PUSHs (rv);
428
429 if (req->int1 & EIO_READDIR_CUSTOM1)
430 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
431 }
432 break;
433
434 case EIO_OPEN:
435 {
436 /* convert fd to fh */
437 SV *fh = &PL_sv_undef;
438
439 if (req->result >= 0)
440 {
441 GV *gv = (GV *)sv_newmortal ();
442 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
443 char sym [64];
444 int symlen;
445
446 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
447 gv_init (gv, aio_stash, sym, symlen, 0);
448
449 symlen = snprintf (
450 sym,
451 sizeof (sym),
452 "%s&=%d",
453 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
454 (int)req->result
455 );
456
457 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
458 fh = (SV *)gv;
459 }
460
461 PUSHs (fh);
462 }
463 break;
464
465 case EIO_STATVFS:
466 case EIO_FSTATVFS:
467 {
468 SV *rv = &PL_sv_undef;
469
470#ifndef _WIN32
471 if (req->result >= 0)
472 {
473 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
474 HV *hv = newHV ();
475
476 rv = sv_2mortal (newRV_noinc ((SV *)hv));
477
478 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
479 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
480 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
481 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
482 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
483 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
484 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
485 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
486 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
487 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
488 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
489 }
490#endif
491
492 PUSHs (rv);
493 }
494
495 break;
496
497 case EIO_GROUP:
498 req->int1 = 2; /* mark group as finished */
499
500 if (req->sv1)
501 {
502 int i;
503 AV *av = (AV *)req->sv1;
504
505 EXTEND (SP, AvFILL (av) + 1);
506 for (i = 0; i <= AvFILL (av); ++i)
507 PUSHs (*av_fetch (av, i, 0));
508 }
509 break;
510
511 case EIO_NOP:
512 case EIO_BUSY:
513 break;
514
515 case EIO_READLINK:
516 case EIO_REALPATH:
517 if (req->result > 0)
518 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
519 break;
520
521 case EIO_STAT:
522 case EIO_LSTAT:
523 case EIO_FSTAT:
524 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
525
526 if (!(PL_laststatval = req->result))
527 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
528 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
529
530 PUSHs (sv_result);
531 break;
532
533 case EIO_SEEK:
534 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
535 break;
536
537 case EIO_READ:
538 {
539 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
540 *SvEND (req->sv2) = 0;
541 SvPOK_only (req->sv2);
542 SvSETMAGIC (req->sv2);
543 PUSHs (sv_result);
544 }
545 break;
546
547 case EIO_CUSTOM:
548 if (req->feed == fiemap)
549 {
550#if HAVE_FIEMAP
551 if (!req->result)
552 {
553 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
554
555 if (fiemap->fm_extent_count)
556 {
557 AV *av = newAV ();
558 int i;
559
560 while (fiemap->fm_mapped_extents)
561 {
562 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
563 AV *ext_av = newAV ();
564
565 av_store (ext_av, 3, newSVuv (extent->fe_flags));
566 av_store (ext_av, 2, newSVval64 (extent->fe_length));
567 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
568 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
569
570 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
571 }
572
573 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
574 }
575 else
576 {
577 SvIV_set (sv_result, fiemap->fm_mapped_extents);
578 PUSHs (sv_result);
579 }
580 }
581#endif
582 }
583 else
584 PUSHs (sv_result);
585 break;
586
587 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
588 if (req->result > 0)
589 SvIV_set (sv_result, 0);
590 /* FALLTHROUGH */
591
592 default:
593 PUSHs (sv_result);
594 break;
595 }
596
597 errno = req->errorno;
598
599 PUTBACK;
600 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
601 SPAGAIN;
602
603 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
604 SvREFCNT_dec (sv_result);
605 else
606 sv_result_cache = sv_result;
607
608 FREETMPS;
609 LEAVE;
610
611 PUTBACK;
159 } 612 }
160}
161 613
162static void aio_grp_dec (aio_req grp) 614 return !!SvTRUE (ERRSV);
163{
164 --grp->length;
165
166 /* call feeder, if applicable */
167 aio_grp_feed (grp);
168
169 /* finish, if done */
170 if (!grp->length && grp->fd)
171 {
172 req_invoke (grp);
173 req_free (grp);
174 }
175} 615}
176 616
177static void poll_wait () 617static void
618req_destroy (aio_req req)
178{ 619{
179 if (nreqs && !ress)
180 {
181 fd_set rfd;
182 FD_ZERO(&rfd);
183 FD_SET(respipe [0], &rfd);
184
185 select (respipe [0] + 1, &rfd, 0, 0, 0);
186 }
187}
188
189static void req_invoke (aio_req req)
190{
191 dSP;
192 int errorno = errno;
193
194 if (req->cancelled || !SvOK (req->callback))
195 return;
196
197 errno = req->errorno;
198
199 ENTER;
200 SAVETMPS;
201 PUSHMARK (SP);
202 EXTEND (SP, 1);
203
204 switch (req->type)
205 {
206 case REQ_READDIR:
207 {
208 SV *rv = &PL_sv_undef;
209
210 if (req->result >= 0)
211 {
212 char *buf = req->data2ptr;
213 AV *av = newAV ();
214
215 while (req->result)
216 {
217 SV *sv = newSVpv (buf, 0);
218
219 av_push (av, sv);
220 buf += SvCUR (sv) + 1;
221 req->result--;
222 }
223
224 rv = sv_2mortal (newRV_noinc ((SV *)av));
225 }
226
227 PUSHs (rv);
228 }
229 break;
230
231 case REQ_OPEN:
232 {
233 /* convert fd to fh */
234 SV *fh;
235
236 PUSHs (sv_2mortal (newSViv (req->result)));
237 PUTBACK;
238 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
239 SPAGAIN;
240
241 fh = SvREFCNT_inc (POPs);
242
243 PUSHMARK (SP);
244 XPUSHs (sv_2mortal (fh));
245 }
246 break;
247
248 case REQ_GROUP:
249 req->fd = 2; /* mark group as finished */
250
251 if (req->data)
252 {
253 int i;
254 AV *av = (AV *)req->data;
255
256 EXTEND (SP, AvFILL (av) + 1);
257 for (i = 0; i <= AvFILL (av); ++i)
258 PUSHs (*av_fetch (av, i, 0));
259 }
260 break;
261
262 case REQ_SLEEP:
263 break;
264
265 default:
266 PUSHs (sv_2mortal (newSViv (req->result)));
267 break;
268 }
269
270
271 PUTBACK;
272 call_sv (req->callback, G_VOID | G_EVAL);
273 SPAGAIN;
274
275 FREETMPS;
276 LEAVE;
277
278 errno = errorno;
279
280 if (SvTRUE (ERRSV))
281 {
282 req_free (req);
283 croak (0);
284 }
285}
286
287static void req_free (aio_req req)
288{
289 if (req->grp)
290 {
291 aio_req grp = req->grp;
292
293 /* unlink request */
294 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
295 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
296
297 if (grp->grp_first == req)
298 grp->grp_first = req->grp_next;
299
300 aio_grp_dec (grp);
301 }
302
303 if (req->self) 620 if (req->self)
304 { 621 {
305 sv_unmagic (req->self, PERL_MAGIC_ext); 622 sv_unmagic (req->self, PERL_MAGIC_ext);
306 SvREFCNT_dec (req->self); 623 SvREFCNT_dec (req->self);
307 } 624 }
308 625
309 SvREFCNT_dec (req->data);
310 SvREFCNT_dec (req->fh); 626 SvREFCNT_dec (req->sv1);
311 SvREFCNT_dec (req->fh2); 627 SvREFCNT_dec (req->sv2);
628 SvREFCNT_dec (req->sv3);
629 SvREFCNT_dec (req->sv4);
312 SvREFCNT_dec (req->callback); 630 SvREFCNT_dec (req->callback);
313 Safefree (req->statdata);
314 631
315 if (req->type == REQ_READDIR && req->result >= 0)
316 free (req->data2ptr);
317
318 Safefree (req); 632 free (req);
319} 633}
320 634
321static void req_cancel (aio_req req) 635static void
636req_cancel_subs (aio_req grp)
322{ 637{
323 req->cancelled = 1;
324
325 if (req->type == REQ_GROUP) 638 if (grp->type != EIO_GROUP)
639 return;
640
641 SvREFCNT_dec (grp->sv2);
642 grp->sv2 = 0;
643
644 eio_grp_cancel (grp);
645}
646
647static void ecb_cold
648create_respipe (void)
649{
650 if (s_epipe_renew (&respipe))
651 croak ("IO::AIO: unable to initialize result pipe");
652}
653
654static void
655poll_wait (void)
656{
657 while (eio_nreqs ())
326 { 658 {
327 aio_req sub; 659 int size;
328 660
329 for (sub = req->grp_first; sub; sub = sub->grp_next) 661 X_LOCK (reslock);
330 req_cancel (sub); 662 size = res_queue.size;
663 X_UNLOCK (reslock);
664
665 if (size)
666 return;
667
668 etp_maybe_start_thread ();
669
670 s_epipe_wait (&respipe);
331 } 671 }
332} 672}
333 673
334static int poll_cb () 674static int
675poll_cb (void)
335{ 676{
336 dSP;
337 int count = 0;
338 int do_croak = 0;
339 aio_req req;
340
341 for (;;) 677 for (;;)
342 { 678 {
343 pthread_mutex_lock (&reslock); 679 int res = eio_poll ();
344 req = ress;
345 680
346 if (req) 681 if (res > 0)
682 croak (0);
683
684 if (!max_outstanding || max_outstanding > eio_nreqs ())
685 return res;
686
687 poll_wait ();
688 }
689}
690
691static void ecb_cold
692reinit (void)
693{
694 create_respipe ();
695
696 if (eio_init (want_poll, done_poll) < 0)
697 croak ("IO::AIO: unable to initialise eio library");
698}
699
700/*****************************************************************************/
701
702#if !_POSIX_MAPPED_FILES
703# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
704# define munmap(addr,length) EIO_ENOSYS ()
705#endif
706
707#if !_POSIX_MEMORY_PROTECTION
708# define mprotect(addr,len,prot) EIO_ENOSYS ()
709# define PROT_NONE 0
710# define PROT_WRITE 0
711# define MAP_PRIVATE 0
712# define MAP_SHARED 0
713# define MAP_FIXED 0
714#endif
715
716#define MMAP_MAGIC PERL_MAGIC_ext
717
718static int ecb_cold
719mmap_free (pTHX_ SV *sv, MAGIC *mg)
720{
721 int old_errno = errno;
722 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
723 errno = old_errno;
724
725 mg->mg_obj = 0; /* just in case */
726
727 SvREADONLY_off (sv);
728
729 if (SvPVX (sv) != mg->mg_ptr)
730 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
731
732 SvCUR_set (sv, 0);
733 SvPVX (sv) = 0;
734 SvOK_off (sv);
735
736 return 0;
737}
738
739static MGVTBL mmap_vtbl = {
740 0, 0, 0, 0, mmap_free
741};
742
743/*****************************************************************************/
744
745static SV *
746get_cb (SV *cb_sv)
747{
748 SvGETMAGIC (cb_sv);
749 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
750}
751
752static aio_req ecb_noinline
753dreq (SV *callback)
754{
755 SV *cb_cv;
756 aio_req req;
757 int req_pri = next_pri;
758 next_pri = EIO_PRI_DEFAULT;
759
760 cb_cv = get_cb (callback);
761
762 req = calloc (sizeof (*req), 1);
763 if (!req)
764 croak ("out of memory during eio_req allocation");
765
766 req->callback = SvREFCNT_inc (cb_cv);
767 req->pri = req_pri;
768
769 return req;
770}
771
772#define dREQ \
773 aio_req req = dreq (callback); \
774
775#define REQ_SEND \
776 PUTBACK; \
777 req_submit (req); \
778 SPAGAIN; \
779 \
780 if (GIMME_V != G_VOID) \
781 XPUSHs (req_sv (req, aio_req_stash));
782
783ecb_inline void
784req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
785{
786 if (expect_false (SvROK (path)))
787 {
788 SV *rv = SvRV (path);
789 SV *wdob;
790
791 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
347 { 792 {
348 ress = req->next; 793 path = AvARRAY (rv)[1];
794 wdob = AvARRAY (rv)[0];
349 795
350 if (!ress) 796 if (SvOK (wdob))
351 { 797 {
352 /* read any signals sent by the worker threads */ 798 *wd = SvAIO_WD (wdob);
353 char buf [32]; 799 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
354 while (read (respipe [0], buf, 32) == 32)
355 ;
356
357 rese = 0;
358 } 800 }
801 else
802 *wd = EIO_INVALID_WD;
359 } 803 }
360 804 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
361 pthread_mutex_unlock (&reslock);
362
363 if (!req)
364 break;
365
366 --nreqs;
367
368 if (req->type == REQ_QUIT)
369 started--;
370 else if (req->type == REQ_GROUP && req->length)
371 { 805 {
372 req->fd = 1; /* mark request as delayed */ 806 *wd = (aio_wd)(long)SvIVX (rv);
373 continue; 807 *wdsv = SvREFCNT_inc_NN (rv);
808 *ptr = ".";
809 return; /* path set to "." */
374 } 810 }
375 else 811 else
376 { 812 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
377 if (req->type == REQ_READ)
378 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
379
380 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
381 SvREADONLY_off (req->data);
382
383 if (req->statdata)
384 {
385 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
386 PL_laststatval = req->result;
387 PL_statcache = *(req->statdata);
388 }
389
390 req_invoke (req);
391
392 count++;
393 }
394
395 req_free (req);
396 } 813 }
397 814
398 return count; 815 *pathsv = newSVsv (path);
816 *ptr = SvPVbyte_nolen (*pathsv);
399} 817}
400 818
401static void *aio_proc(void *arg); 819static void ecb_noinline
402 820req_set_path1 (aio_req req, SV *path)
403static void start_thread (void)
404{ 821{
405 sigset_t fullsigset, oldsigset; 822 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
406 pthread_t tid;
407 pthread_attr_t attr;
408
409 pthread_attr_init (&attr);
410 pthread_attr_setstacksize (&attr, STACKSIZE);
411 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
412
413 sigfillset (&fullsigset);
414 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
415
416 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
417 started++;
418
419 sigprocmask (SIG_SETMASK, &oldsigset, 0);
420} 823}
421 824
422static void req_send (aio_req req) 825static void ecb_noinline
826req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
423{ 827{
424 while (started < wanted && nreqs >= started) 828 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
425 start_thread ();
426 829
427 ++nreqs; 830 switch (SvTYPE (rv))
428
429 pthread_mutex_lock (&reqlock);
430
431 req->next = 0;
432
433 if (reqe)
434 { 831 {
435 reqe->next = req; 832 case SVt_PVIO:
436 reqe = req; 833 case SVt_PVLV:
834 case SVt_PVGV:
835 req->type = type_fh;
836 req->sv1 = newSVsv (fh_or_path);
837 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
838 break;
839
840 default:
841 req->type = type_path;
842 req_set_path1 (req, fh_or_path);
843 break;
437 } 844 }
438 else
439 reqe = reqs = req;
440
441 pthread_cond_signal (&reqwait);
442 pthread_mutex_unlock (&reqlock);
443
444 if (nreqs > max_outstanding)
445 for (;;)
446 {
447 poll_cb ();
448
449 if (nreqs <= max_outstanding)
450 break;
451
452 poll_wait ();
453 }
454} 845}
455 846
456static void end_thread (void) 847XS(boot_IO__AIO) ecb_cold;
457{
458 aio_req req;
459 Newz (0, req, 1, aio_cb);
460 req->type = REQ_QUIT;
461 848
462 req_send (req); 849MODULE = IO::AIO PACKAGE = IO::AIO
463}
464 850
465static void min_parallel (int nthreads) 851PROTOTYPES: ENABLE
466{
467 if (wanted < nthreads)
468 wanted = nthreads;
469}
470 852
471static void max_parallel (int nthreads) 853BOOT:
472{ 854{
473 int cur = started; 855 static const struct {
856 const char *name;
857 IV iv;
858 } *civ, const_iv[] = {
859# define const_niv(name, value) { # name, (IV) value },
860# define const_iv(name) { # name, (IV) name },
861# define const_eio(name) { # name, (IV) EIO_ ## name },
474 862
475 if (wanted > nthreads) 863 /* you have to re-run ./gendef0 after adding/Removing any constants here */
476 wanted = nthreads;
477 864
478 while (cur > wanted) 865 const_iv (ENOSYS)
479 { 866 const_iv (EXDEV)
480 end_thread (); 867 const_iv (EBADR)
481 cur--;
482 }
483 868
484 while (started > wanted) 869 const_iv (O_RDONLY)
485 { 870 const_iv (O_WRONLY)
486 poll_wait (); 871 const_iv (O_RDWR)
487 poll_cb (); 872 const_iv (O_CREAT)
488 } 873 const_iv (O_TRUNC)
489} 874 const_iv (O_EXCL)
875 const_iv (O_APPEND)
490 876
491static void create_pipe () 877 const_iv (O_ASYNC)
492{ 878 const_iv (O_DIRECT)
493 if (pipe (respipe)) 879 const_iv (O_NOATIME)
494 croak ("unable to initialize result pipe");
495 880
496 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 881 const_iv (O_CLOEXEC)
497 croak ("cannot set result pipe to nonblocking mode"); 882 const_iv (O_NOCTTY)
883 const_iv (O_NOFOLLOW)
884 const_iv (O_NONBLOCK)
885 const_iv (O_EXEC)
886 const_iv (O_SEARCH)
887 const_iv (O_DIRECTORY)
888 const_iv (O_DSYNC)
889 const_iv (O_RSYNC)
890 const_iv (O_SYNC)
891 const_iv (O_TTY_INIT)
498 892
499 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 893 const_iv (S_IFIFO)
500 croak ("cannot set result pipe to nonblocking mode"); 894 const_iv (S_IFCHR)
501} 895 const_iv (S_IFBLK)
896 const_iv (S_IFLNK)
897 const_iv (S_IFREG)
898 const_iv (S_IFDIR)
899 const_iv (S_IFWHT)
900 const_iv (S_IFSOCK)
901 const_iv (S_IFMT)
502 902
503/*****************************************************************************/ 903 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
504/* work around various missing functions */ 904 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
905 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
906 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
907 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
908 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
505 909
506#if !HAVE_PREADWRITE 910 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
507# define pread aio_pread 911 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
508# define pwrite aio_pwrite 912 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
913 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
914 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
509 915
510/* 916 const_iv (ST_RDONLY)
511 * make our pread/pwrite safe against themselves, but not against 917 const_iv (ST_NOSUID)
512 * normal read/write by using a mutex. slows down execution a lot, 918 const_iv (ST_NODEV)
513 * but that's your problem, not mine. 919 const_iv (ST_NOEXEC)
514 */ 920 const_iv (ST_SYNCHRONOUS)
515static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; 921 const_iv (ST_MANDLOCK)
922 const_iv (ST_WRITE)
923 const_iv (ST_APPEND)
924 const_iv (ST_IMMUTABLE)
925 const_iv (ST_NOATIME)
926 const_iv (ST_NODIRATIME)
927 const_iv (ST_RELATIME)
516 928
517static ssize_t pread (int fd, void *buf, size_t count, off_t offset) 929 const_iv (PROT_NONE)
518{ 930 const_iv (PROT_EXEC)
519 ssize_t res; 931 const_iv (PROT_READ)
520 off_t ooffset; 932 const_iv (PROT_WRITE)
521 933
522 pthread_mutex_lock (&preadwritelock); 934 /*const_iv (MAP_FIXED)*/
523 ooffset = lseek (fd, 0, SEEK_CUR); 935 const_iv (MAP_PRIVATE)
524 lseek (fd, offset, SEEK_SET); 936 const_iv (MAP_SHARED)
525 res = read (fd, buf, count); 937 const_iv (MAP_ANONYMOUS)
526 lseek (fd, ooffset, SEEK_SET);
527 pthread_mutex_unlock (&preadwritelock);
528 938
529 return res; 939 /* linuxish */
530} 940 const_iv (MAP_HUGETLB)
941 const_iv (MAP_LOCKED)
942 const_iv (MAP_NORESERVE)
943 const_iv (MAP_POPULATE)
944 const_iv (MAP_NONBLOCK)
531 945
532static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 946 const_iv (FIEMAP_FLAG_SYNC)
533{ 947 const_iv (FIEMAP_FLAG_XATTR)
534 ssize_t res; 948 const_iv (FIEMAP_FLAGS_COMPAT)
535 off_t ooffset; 949 const_iv (FIEMAP_EXTENT_LAST)
950 const_iv (FIEMAP_EXTENT_UNKNOWN)
951 const_iv (FIEMAP_EXTENT_DELALLOC)
952 const_iv (FIEMAP_EXTENT_ENCODED)
953 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
954 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
955 const_iv (FIEMAP_EXTENT_DATA_INLINE)
956 const_iv (FIEMAP_EXTENT_DATA_TAIL)
957 const_iv (FIEMAP_EXTENT_UNWRITTEN)
958 const_iv (FIEMAP_EXTENT_MERGED)
959 const_iv (FIEMAP_EXTENT_SHARED)
536 960
537 pthread_mutex_lock (&preadwritelock); 961 const_iv (SPLICE_F_MOVE)
538 ooffset = lseek (fd, 0, SEEK_CUR); 962 const_iv (SPLICE_F_NONBLOCK)
539 lseek (fd, offset, SEEK_SET); 963 const_iv (SPLICE_F_MORE)
540 res = write (fd, buf, count); 964 const_iv (SPLICE_F_GIFT)
541 lseek (fd, offset, SEEK_SET);
542 pthread_mutex_unlock (&preadwritelock);
543 965
544 return res; 966 const_iv (SEEK_DATA)
545} 967 const_iv (SEEK_HOLE)
546#endif
547 968
548#if !HAVE_FDATASYNC 969 /* libeio constants */
549# define fdatasync fsync 970 const_eio (SEEK_SET)
550#endif 971 const_eio (SEEK_CUR)
972 const_eio (SEEK_END)
551 973
552#if !HAVE_READAHEAD 974 const_eio (MCL_FUTURE)
553# define readahead aio_readahead 975 const_eio (MCL_CURRENT)
554 976
555static ssize_t readahead (int fd, off_t offset, size_t count) 977 const_eio (MS_ASYNC)
556{ 978 const_eio (MS_INVALIDATE)
557 char readahead_buf[4096]; 979 const_eio (MS_SYNC)
558 980
559 while (count > 0) 981 const_eio (MT_MODIFY)
560 {
561 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
562 982
563 pread (fd, readahead_buf, len, offset); 983 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
564 offset += len; 984 const_eio (SYNC_FILE_RANGE_WRITE)
565 count -= len; 985 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
566 }
567 986
568 errno = 0; 987 const_eio (FALLOC_FL_KEEP_SIZE)
569}
570#endif
571 988
572#if !HAVE_READDIR_R 989 const_eio (READDIR_DENTS)
573# define readdir_r aio_readdir_r 990 const_eio (READDIR_DIRS_FIRST)
991 const_eio (READDIR_STAT_ORDER)
992 const_eio (READDIR_FOUND_UNKNOWN)
574 993
575static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; 994 const_eio (DT_UNKNOWN)
576 995 const_eio (DT_FIFO)
577static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) 996 const_eio (DT_CHR)
578{ 997 const_eio (DT_DIR)
579 struct dirent *e; 998 const_eio (DT_BLK)
580 int errorno; 999 const_eio (DT_REG)
581 1000 const_eio (DT_LNK)
582 pthread_mutex_lock (&readdirlock); 1001 const_eio (DT_SOCK)
583 1002 const_eio (DT_WHT)
584 e = readdir (dirp);
585 errorno = errno;
586
587 if (e)
588 {
589 *res = ent;
590 strcpy (ent->d_name, e->d_name);
591 }
592 else
593 *res = 0;
594
595 pthread_mutex_unlock (&readdirlock);
596
597 errno = errorno;
598 return e ? 0 : -1;
599}
600#endif
601
602/* sendfile always needs emulation */
603static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
604{
605 ssize_t res;
606
607 if (!count)
608 return 0;
609
610#if HAVE_SENDFILE
611# if __linux
612 res = sendfile (ofd, ifd, &offset, count);
613
614# elif __freebsd
615 /*
616 * Of course, the freebsd sendfile is a dire hack with no thoughts
617 * wasted on making it similar to other I/O functions.
618 */
619 {
620 off_t sbytes;
621 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
622
623 if (res < 0 && sbytes)
624 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
625 res = sbytes;
626 } 1003 };
627 1004
628# elif __hpux 1005 aio_stash = gv_stashpv ("IO::AIO" , 1);
629 res = sendfile (ofd, ifd, offset, count, 0, 0); 1006 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1007 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1008 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
630 1009
631# elif __solaris 1010 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
632 { 1011 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
633 struct sendfilevec vec;
634 size_t sbytes;
635 1012
636 vec.sfv_fd = ifd; 1013 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
637 vec.sfv_flag = 0;
638 vec.sfv_off = offset;
639 vec.sfv_len = count;
640 1014
641 res = sendfilev (ofd, &vec, 1, &sbytes); 1015 reinit ();
1016}
642 1017
643 if (res < 0 && sbytes) 1018void
1019reinit ()
1020 PROTOTYPE:
1021
1022void
1023max_poll_reqs (unsigned int nreqs)
1024 PROTOTYPE: $
1025 CODE:
1026 eio_set_max_poll_reqs (nreqs);
1027
1028void
1029max_poll_time (double nseconds)
1030 PROTOTYPE: $
1031 CODE:
1032 eio_set_max_poll_time (nseconds);
1033
1034void
1035min_parallel (unsigned int nthreads)
1036 PROTOTYPE: $
1037 CODE:
1038 eio_set_min_parallel (nthreads);
1039
1040void
1041max_parallel (unsigned int nthreads)
1042 PROTOTYPE: $
1043 CODE:
1044 eio_set_max_parallel (nthreads);
1045
1046void
1047max_idle (unsigned int nthreads)
1048 PROTOTYPE: $
1049 CODE:
1050 eio_set_max_idle (nthreads);
1051
1052void
1053idle_timeout (unsigned int seconds)
1054 PROTOTYPE: $
1055 CODE:
1056 eio_set_idle_timeout (seconds);
1057
1058void
1059max_outstanding (unsigned int maxreqs)
1060 PROTOTYPE: $
1061 CODE:
1062 max_outstanding = maxreqs;
1063
1064void
1065aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1066 PPCODE:
1067{
1068 dREQ;
1069
1070 req->type = EIO_WD_OPEN;
1071 req_set_path1 (req, pathname);
1072
1073 REQ_SEND;
1074}
1075
1076void
1077aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1078 PPCODE:
1079{
1080 dREQ;
1081
1082 req->type = EIO_OPEN;
1083 req_set_path1 (req, pathname);
1084 req->int1 = flags;
1085 req->int2 = mode;
1086
1087 REQ_SEND;
1088}
1089
1090void
1091aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1092 ALIAS:
1093 aio_fsync = EIO_FSYNC
1094 aio_fdatasync = EIO_FDATASYNC
1095 aio_syncfs = EIO_SYNCFS
1096 PPCODE:
1097{
1098 int fd = s_fileno_croak (fh, 0);
1099 dREQ;
1100
1101 req->type = ix;
1102 req->sv1 = newSVsv (fh);
1103 req->int1 = fd;
1104
1105 REQ_SEND;
1106}
1107
1108void
1109aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1110 PPCODE:
1111{
1112 int fd = s_fileno_croak (fh, 0);
1113 dREQ;
1114
1115 req->type = EIO_SYNC_FILE_RANGE;
1116 req->sv1 = newSVsv (fh);
1117 req->int1 = fd;
1118 req->offs = offset;
644 res = sbytes; 1119 req->size = nbytes;
645 } 1120 req->int2 = flags;
646 1121
647# endif 1122 REQ_SEND;
1123}
1124
1125void
1126aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1127 PPCODE:
1128{
1129 int fd = s_fileno_croak (fh, 0);
1130 dREQ;
1131
1132 req->type = EIO_FALLOCATE;
1133 req->sv1 = newSVsv (fh);
1134 req->int1 = fd;
1135 req->int2 = mode;
1136 req->offs = offset;
1137 req->size = len;
1138
1139 REQ_SEND;
1140}
1141
1142void
1143aio_close (SV *fh, SV *callback=&PL_sv_undef)
1144 PPCODE:
1145{
1146 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1147 int fd = s_fileno_croak (fh, 0);
1148 dREQ;
1149
1150 if (expect_false (close_fd < 0))
1151 {
1152 int pipefd [2];
1153
1154 if (
1155#ifdef _WIN32
1156 _pipe (pipefd, 1, _O_BINARY) < 0
648#else 1157#else
649 res = -1; 1158 pipe (pipefd) < 0
650 errno = ENOSYS; 1159 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
651#endif 1160#endif
652 1161 || close (pipefd [1]) < 0
653 if (res < 0
654 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
655#if __solaris
656 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
657#endif
658 )
659 )
660 {
661 /* emulate sendfile. this is a major pain in the ass */
662 char buf[4096];
663 res = 0;
664
665 while (count)
666 {
667 ssize_t cnt;
668
669 cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
670
671 if (cnt <= 0)
672 { 1162 )
673 if (cnt && !res) res = -1; 1163 abort (); /*D*/
674 break;
675 }
676 1164
677 cnt = write (ofd, buf, cnt); 1165 close_fd = pipefd [0];
678
679 if (cnt <= 0)
680 {
681 if (cnt && !res) res = -1;
682 break;
683 }
684
685 offset += cnt;
686 res += cnt;
687 count -= cnt;
688 }
689 }
690
691 return res;
692}
693
694/* read a full directory */
695static int scandir_ (const char *path, void **namesp)
696{
697 DIR *dirp = opendir (path);
698 union
699 {
700 struct dirent d;
701 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
702 } u;
703 struct dirent *entp;
704 char *name, *names;
705 int memlen = 4096;
706 int memofs = 0;
707 int res = 0;
708 int errorno;
709
710 if (!dirp)
711 return -1;
712
713 names = malloc (memlen);
714
715 for (;;)
716 {
717 errno = 0, readdir_r (dirp, &u.d, &entp);
718
719 if (!entp)
720 break;
721
722 name = entp->d_name;
723
724 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
725 {
726 int len = strlen (name) + 1;
727
728 res++;
729
730 while (memofs + len > memlen)
731 {
732 memlen *= 2;
733 names = realloc (names, memlen);
734 if (!names)
735 break;
736 }
737
738 memcpy (names + memofs, name, len);
739 memofs += len;
740 }
741 }
742
743 errorno = errno;
744 closedir (dirp);
745
746 if (errorno)
747 {
748 free (names);
749 errno = errorno;
750 res = -1;
751 }
752
753 *namesp = (void *)names;
754 return res;
755}
756
757/*****************************************************************************/
758
759static void *aio_proc (void *thr_arg)
760{
761 aio_req req;
762 int type;
763
764 do
765 {
766 pthread_mutex_lock (&reqlock);
767
768 for (;;)
769 {
770 req = reqs;
771
772 if (reqs)
773 {
774 reqs = reqs->next;
775 if (!reqs) reqe = 0;
776 }
777
778 if (req)
779 break;
780
781 pthread_cond_wait (&reqwait, &reqlock);
782 }
783
784 pthread_mutex_unlock (&reqlock);
785
786 errno = 0; /* strictly unnecessary */
787
788 if (!req->cancelled)
789 switch (type = req->type) /* remember type for QUIT check */
790 {
791 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
792 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
793
794 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
795 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
796
797 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
798 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
799 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
800
801 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
802 case REQ_CLOSE: req->result = close (req->fd); break;
803 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
804 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
805 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
806 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
807 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
808
809 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
810 case REQ_FSYNC: req->result = fsync (req->fd); break;
811 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
812
813 case REQ_SLEEP:
814 {
815 struct timeval tv;
816
817 tv.tv_sec = req->fd;
818 tv.tv_usec = req->fd2;
819
820 req->result = select (0, 0, 0, 0, &tv);
821 }
822
823 case REQ_QUIT:
824 break;
825
826 default:
827 req->result = ENOSYS;
828 break;
829 } 1166 }
830 1167
831 req->errorno = errno; 1168 req->type = EIO_DUP2;
832 1169 req->int1 = close_fd;
833 pthread_mutex_lock (&reslock); 1170 req->sv2 = newSVsv (fh);
834
835 req->next = 0; 1171 req->int2 = fd;
836 1172
837 if (rese) 1173 REQ_SEND;
838 {
839 rese->next = req;
840 rese = req;
841 }
842 else
843 {
844 rese = ress = req;
845
846 /* write a dummy byte to the pipe so fh becomes ready */
847 write (respipe [1], &respipe, 1);
848 }
849
850 pthread_mutex_unlock (&reslock);
851 }
852 while (type != REQ_QUIT);
853
854 return 0;
855} 1174}
856 1175
857/*****************************************************************************/
858
859static void atfork_prepare (void)
860{
861 pthread_mutex_lock (&reqlock);
862 pthread_mutex_lock (&reslock);
863#if !HAVE_PREADWRITE
864 pthread_mutex_lock (&preadwritelock);
865#endif
866#if !HAVE_READDIR_R
867 pthread_mutex_lock (&readdirlock);
868#endif
869}
870
871static void atfork_parent (void)
872{
873#if !HAVE_READDIR_R
874 pthread_mutex_unlock (&readdirlock);
875#endif
876#if !HAVE_PREADWRITE
877 pthread_mutex_unlock (&preadwritelock);
878#endif
879 pthread_mutex_unlock (&reslock);
880 pthread_mutex_unlock (&reqlock);
881}
882
883static void atfork_child (void)
884{
885 aio_req prv;
886
887 started = 0;
888
889 while (reqs)
890 {
891 prv = reqs;
892 reqs = prv->next;
893 req_free (prv);
894 }
895
896 reqs = reqe = 0;
897
898 while (ress)
899 {
900 prv = ress;
901 ress = prv->next;
902 req_free (prv);
903 }
904
905 ress = rese = 0;
906
907 close (respipe [0]);
908 close (respipe [1]);
909 create_pipe ();
910
911 atfork_parent ();
912}
913
914#define dREQ \
915 aio_req req; \
916 \
917 if (SvOK (callback) && !SvROK (callback)) \
918 croak ("callback must be undef or of reference type"); \
919 \
920 Newz (0, req, 1, aio_cb); \
921 if (!req) \
922 croak ("out of memory during aio_req allocation"); \
923 \
924 req->callback = newSVsv (callback)
925
926#define REQ_SEND \
927 req_send (req); \
928 \
929 if (GIMME_V != G_VOID) \
930 XPUSHs (req_sv (req, AIO_REQ_KLASS));
931
932MODULE = IO::AIO PACKAGE = IO::AIO
933
934PROTOTYPES: ENABLE
935
936BOOT:
937{
938 HV *stash = gv_stashpv ("IO::AIO", 1);
939 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
940 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
941 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
942
943 create_pipe ();
944 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
945}
946
947void 1176void
948min_parallel (nthreads) 1177aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
949 int nthreads
950 PROTOTYPE: $
951
952void
953max_parallel (nthreads)
954 int nthreads
955 PROTOTYPE: $
956
957int
958max_outstanding (nreqs)
959 int nreqs
960 PROTOTYPE: $
961 CODE: 1178 PPCODE:
962 RETVAL = max_outstanding;
963 max_outstanding = nreqs;
964
965void
966aio_open (pathname,flags,mode,callback=&PL_sv_undef)
967 SV * pathname
968 int flags
969 int mode
970 SV * callback
971 PROTOTYPE: $$$;$
972 PPCODE:
973{ 1179{
1180 int fd = s_fileno_croak (fh, 0);
974 dREQ; 1181 dREQ;
975 1182
976 req->type = REQ_OPEN; 1183 req->type = EIO_SEEK;
977 req->data = newSVsv (pathname); 1184 req->sv1 = newSVsv (fh);
978 req->dataptr = SvPVbyte_nolen (req->data); 1185 req->int1 = fd;
979 req->fd = flags; 1186 req->offs = SvVAL64 (offset);
980 req->mode = mode; 1187 req->int2 = whence;
981 1188
982 REQ_SEND; 1189 REQ_SEND;
983} 1190}
984 1191
985void 1192void
986aio_close (fh,callback=&PL_sv_undef) 1193aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
987 SV * fh
988 SV * callback
989 PROTOTYPE: $;$
990 ALIAS: 1194 ALIAS:
991 aio_close = REQ_CLOSE
992 aio_fsync = REQ_FSYNC
993 aio_fdatasync = REQ_FDATASYNC
994 PPCODE:
995{
996 dREQ;
997
998 req->type = ix;
999 req->fh = newSVsv (fh);
1000 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1001
1002 REQ_SEND (req);
1003}
1004
1005void
1006aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1007 SV * fh
1008 UV offset
1009 UV length
1010 SV * data
1011 UV dataoffset
1012 SV * callback
1013 ALIAS:
1014 aio_read = REQ_READ 1195 aio_read = EIO_READ
1015 aio_write = REQ_WRITE 1196 aio_write = EIO_WRITE
1016 PROTOTYPE: $$$$$;$
1017 PPCODE: 1197 PPCODE:
1018{ 1198{
1019 aio_req req;
1020 STRLEN svlen; 1199 STRLEN svlen;
1200 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1021 char *svptr = SvPVbyte (data, svlen); 1201 char *svptr = SvPVbyte (data, svlen);
1022 1202 UV len = SvUV (length);
1023 SvUPGRADE (data, SVt_PV);
1024 SvPOK_on (data);
1025 1203
1026 if (dataoffset < 0) 1204 if (dataoffset < 0)
1027 dataoffset += svlen; 1205 dataoffset += svlen;
1028 1206
1029 if (dataoffset < 0 || dataoffset > svlen) 1207 if (dataoffset < 0 || dataoffset > svlen)
1030 croak ("data offset outside of string"); 1208 croak ("dataoffset outside of data scalar");
1031 1209
1032 if (ix == REQ_WRITE) 1210 if (ix == EIO_WRITE)
1033 { 1211 {
1034 /* write: check length and adjust. */ 1212 /* write: check length and adjust. */
1035 if (length < 0 || length + dataoffset > svlen) 1213 if (!SvOK (length) || len + dataoffset > svlen)
1036 length = svlen - dataoffset; 1214 len = svlen - dataoffset;
1037 } 1215 }
1038 else 1216 else
1039 { 1217 {
1040 /* read: grow scalar as necessary */ 1218 /* read: check type and grow scalar as necessary */
1219 SvUPGRADE (data, SVt_PV);
1041 svptr = SvGROW (data, length + dataoffset); 1220 svptr = SvGROW (data, len + dataoffset + 1);
1042 } 1221 }
1043
1044 if (length < 0)
1045 croak ("length must not be negative");
1046 1222
1047 { 1223 {
1048 dREQ; 1224 dREQ;
1049 1225
1050 req->type = ix; 1226 req->type = ix;
1051 req->fh = newSVsv (fh); 1227 req->sv1 = newSVsv (fh);
1052 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1228 req->int1 = fd;
1053 : IoOFP (sv_2io (fh))); 1229 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1054 req->offset = offset; 1230 req->size = len;
1055 req->length = length;
1056 req->data = SvREFCNT_inc (data); 1231 req->sv2 = SvREFCNT_inc (data);
1057 req->dataptr = (char *)svptr + dataoffset; 1232 req->ptr2 = (char *)svptr + dataoffset;
1233 req->stroffset = dataoffset;
1058 1234
1059 if (!SvREADONLY (data)) 1235 if (!SvREADONLY (data))
1060 { 1236 {
1061 SvREADONLY_on (data); 1237 SvREADONLY_on (data);
1062 req->data2ptr = (void *)data; 1238 req->flags |= FLAG_SV2_RO_OFF;
1063 } 1239 }
1064 1240
1065 REQ_SEND; 1241 REQ_SEND;
1066 } 1242 }
1067} 1243}
1068 1244
1069void 1245void
1070aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1246aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1071 SV * out_fh 1247 ALIAS:
1072 SV * in_fh 1248 aio_readlink = EIO_READLINK
1073 UV in_offset 1249 aio_realpath = EIO_REALPATH
1074 UV length
1075 SV * callback
1076 PROTOTYPE: $$$$;$
1077 PPCODE: 1250 PPCODE:
1078{ 1251{
1252 dREQ;
1253
1254 req->type = ix;
1255 req_set_path1 (req, pathname);
1256
1257 REQ_SEND;
1258}
1259
1260void
1261aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1262 PPCODE:
1263{
1264 int ifd = s_fileno_croak (in_fh , 0);
1265 int ofd = s_fileno_croak (out_fh, 1);
1079 dREQ; 1266 dREQ;
1080 1267
1081 req->type = REQ_SENDFILE; 1268 req->type = EIO_SENDFILE;
1082 req->fh = newSVsv (out_fh); 1269 req->sv1 = newSVsv (out_fh);
1083 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1270 req->int1 = ofd;
1084 req->fh2 = newSVsv (in_fh); 1271 req->sv2 = newSVsv (in_fh);
1085 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1272 req->int2 = ifd;
1086 req->offset = in_offset; 1273 req->offs = in_offset;
1087 req->length = length; 1274 req->size = length;
1088 1275
1089 REQ_SEND; 1276 REQ_SEND;
1090} 1277}
1091 1278
1092void 1279void
1093aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1280aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1094 SV * fh
1095 UV offset
1096 IV length
1097 SV * callback
1098 PROTOTYPE: $$$;$
1099 PPCODE: 1281 PPCODE:
1100{ 1282{
1283 int fd = s_fileno_croak (fh, 0);
1101 dREQ; 1284 dREQ;
1102 1285
1103 req->type = REQ_READAHEAD; 1286 req->type = EIO_READAHEAD;
1104 req->fh = newSVsv (fh); 1287 req->sv1 = newSVsv (fh);
1105 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1288 req->int1 = fd;
1106 req->offset = offset; 1289 req->offs = offset;
1107 req->length = length; 1290 req->size = length;
1108 1291
1109 REQ_SEND; 1292 REQ_SEND;
1110} 1293}
1111 1294
1112void 1295void
1113aio_stat (fh_or_path,callback=&PL_sv_undef) 1296aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1114 SV * fh_or_path
1115 SV * callback
1116 ALIAS: 1297 ALIAS:
1117 aio_stat = REQ_STAT 1298 aio_stat = EIO_STAT
1118 aio_lstat = REQ_LSTAT 1299 aio_lstat = EIO_LSTAT
1300 aio_statvfs = EIO_STATVFS
1119 PPCODE: 1301 PPCODE:
1120{ 1302{
1121 dREQ; 1303 dREQ;
1122 1304
1123 New (0, req->statdata, 1, Stat_t); 1305 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1124 if (!req->statdata)
1125 {
1126 req_free (req);
1127 croak ("out of memory during aio_req->statdata allocation");
1128 }
1129
1130 if (SvPOK (fh_or_path))
1131 {
1132 req->type = ix;
1133 req->data = newSVsv (fh_or_path);
1134 req->dataptr = SvPVbyte_nolen (req->data);
1135 }
1136 else
1137 {
1138 req->type = REQ_FSTAT;
1139 req->fh = newSVsv (fh_or_path);
1140 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1141 }
1142 1306
1143 REQ_SEND; 1307 REQ_SEND;
1144} 1308}
1145 1309
1310UV
1311major (UV dev)
1312 ALIAS:
1313 minor = 1
1314 CODE:
1315 RETVAL = ix ? major (dev) : minor (dev);
1316 OUTPUT:
1317 RETVAL
1318
1319UV
1320makedev (UV maj, UV min)
1321 CODE:
1322 RETVAL = makedev (maj, min);
1323 OUTPUT:
1324 RETVAL
1325
1146void 1326void
1327aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1328 PPCODE:
1329{
1330 dREQ;
1331
1332 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1333 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1334 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1335
1336 REQ_SEND;
1337}
1338
1339void
1340aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1341 PPCODE:
1342{
1343 dREQ;
1344
1345 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1346 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1347
1348 REQ_SEND;
1349}
1350
1351void
1352aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1353 PPCODE:
1354{
1355 dREQ;
1356
1357 req->int2 = mode;
1358 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1359
1360 REQ_SEND;
1361}
1362
1363void
1364aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1365 PPCODE:
1366{
1367 dREQ;
1368
1369 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1370 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1371 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1372
1373 REQ_SEND;
1374}
1375
1376void
1377aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1378 PPCODE:
1379{
1380 dREQ;
1381
1382 req->type = EIO_READDIR;
1383 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1384
1385 if (flags & EIO_READDIR_DENTS)
1386 req->int1 |= EIO_READDIR_CUSTOM2;
1387
1388 req_set_path1 (req, pathname);
1389
1390 REQ_SEND;
1391}
1392
1393void
1394aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1395 PPCODE:
1396{
1397 dREQ;
1398
1399 req->type = EIO_MKDIR;
1400 req->int2 = mode;
1401 req_set_path1 (req, pathname);
1402
1403 REQ_SEND;
1404}
1405
1406void
1147aio_unlink (pathname,callback=&PL_sv_undef) 1407aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1148 SV * pathname
1149 SV * callback
1150 ALIAS: 1408 ALIAS:
1151 aio_unlink = REQ_UNLINK 1409 aio_unlink = EIO_UNLINK
1152 aio_rmdir = REQ_RMDIR 1410 aio_rmdir = EIO_RMDIR
1153 aio_readdir = REQ_READDIR 1411 aio_readdir = EIO_READDIR
1154 PPCODE: 1412 PPCODE:
1155{ 1413{
1156 dREQ; 1414 dREQ;
1157 1415
1158 req->type = ix; 1416 req->type = ix;
1159 req->data = newSVsv (pathname); 1417 req_set_path1 (req, pathname);
1160 req->dataptr = SvPVbyte_nolen (req->data); 1418
1161
1162 REQ_SEND; 1419 REQ_SEND;
1163} 1420}
1164 1421
1165void 1422void
1166aio_link (oldpath,newpath,callback=&PL_sv_undef) 1423aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1167 SV * oldpath
1168 SV * newpath
1169 SV * callback
1170 ALIAS: 1424 ALIAS:
1171 aio_link = REQ_LINK 1425 aio_link = EIO_LINK
1172 aio_symlink = REQ_SYMLINK 1426 aio_symlink = EIO_SYMLINK
1173 aio_rename = REQ_RENAME 1427 aio_rename = EIO_RENAME
1174 PPCODE: 1428 PPCODE:
1175{ 1429{
1430 eio_wd wd2 = 0;
1176 dREQ; 1431 dREQ;
1177 1432
1178 req->type = ix; 1433 req->type = ix;
1179 req->fh = newSVsv (oldpath); 1434 req_set_path1 (req, oldpath);
1180 req->data2ptr = SvPVbyte_nolen (req->fh); 1435 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1181 req->data = newSVsv (newpath); 1436 req->int3 = (long)wd2;
1182 req->dataptr = SvPVbyte_nolen (req->data);
1183 1437
1184 REQ_SEND; 1438 REQ_SEND;
1185} 1439}
1186 1440
1187void 1441void
1188aio_sleep (delay,callback=&PL_sv_undef) 1442aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1189 double delay
1190 SV * callback
1191 PPCODE: 1443 PPCODE:
1192{ 1444{
1193 dREQ; 1445 dREQ;
1194 1446
1195 req->type = REQ_SLEEP; 1447 req->type = EIO_MKNOD;
1196 req->fd = delay < 0. ? 0 : delay; 1448 req->int2 = (mode_t)mode;
1197 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1449 req->offs = dev;
1198 1450 req_set_path1 (req, pathname);
1451
1199 REQ_SEND; 1452 REQ_SEND;
1200} 1453}
1201 1454
1202void 1455void
1203aio_group (callback=&PL_sv_undef) 1456aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1204 SV * callback 1457 ALIAS:
1205 PROTOTYPE: ;$ 1458 aio_mtouch = EIO_MTOUCH
1459 aio_msync = EIO_MSYNC
1206 PPCODE: 1460 PPCODE:
1207{ 1461{
1462 STRLEN svlen;
1463 char *svptr = SvPVbyte (data, svlen);
1464 UV len = SvUV (length);
1465
1466 if (offset < 0)
1467 offset += svlen;
1468
1469 if (offset < 0 || offset > svlen)
1470 croak ("offset outside of scalar");
1471
1472 if (!SvOK (length) || len + offset > svlen)
1473 len = svlen - offset;
1474
1475 {
1476 dREQ;
1477
1478 req->type = ix;
1479 req->sv2 = SvREFCNT_inc (data);
1480 req->ptr2 = (char *)svptr + offset;
1481 req->size = len;
1482 req->int1 = flags;
1483
1484 REQ_SEND;
1485 }
1486}
1487
1488void
1489aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1490 PPCODE:
1491{
1492 STRLEN svlen;
1493 char *svptr = SvPVbyte (data, svlen);
1494 UV len = SvUV (length);
1495
1496 if (offset < 0)
1497 offset += svlen;
1498
1499 if (offset < 0 || offset > svlen)
1500 croak ("offset outside of scalar");
1501
1502 if (!SvOK (length) || len + offset > svlen)
1503 len = svlen - offset;
1504
1505 {
1506 dREQ;
1507
1508 req->type = EIO_MLOCK;
1509 req->sv2 = SvREFCNT_inc (data);
1510 req->ptr2 = (char *)svptr + offset;
1511 req->size = len;
1512
1513 REQ_SEND;
1514 }
1515}
1516
1517void
1518aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1519 PPCODE:
1520{
1521 dREQ;
1522
1523 req->type = EIO_MLOCKALL;
1524 req->int1 = flags;
1525
1526 REQ_SEND;
1527}
1528
1529void
1530aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
1531 PPCODE:
1532{
1533 int fd = s_fileno_croak (fh, 0);
1208 dREQ; 1534 dREQ;
1535
1536 req->type = EIO_CUSTOM;
1537 req->sv1 = newSVsv (fh);
1538 req->int1 = fd;
1539
1540 req->feed = fiemap;
1541#if HAVE_FIEMAP
1542 /* keep our fingers crossed that the next two types are 64 bit */
1543 req->offs = start;
1544 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1545 req->int2 = flags;
1546 req->int3 = SvOK (count) ? SvIV (count) : -1;
1547#endif
1548
1549 REQ_SEND;
1550}
1551
1552void
1553aio_busy (double delay, SV *callback=&PL_sv_undef)
1554 PPCODE:
1555{
1556 dREQ;
1557
1558 req->type = EIO_BUSY;
1559 req->nv1 = delay < 0. ? 0. : delay;
1560
1561 REQ_SEND;
1562}
1563
1564void
1565aio_group (SV *callback=&PL_sv_undef)
1566 PPCODE:
1567{
1568 dREQ;
1569
1209 req->type = REQ_GROUP; 1570 req->type = EIO_GROUP;
1571
1210 req_send (req); 1572 req_submit (req);
1211 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1573 XPUSHs (req_sv (req, aio_grp_stash));
1212} 1574}
1575
1576void
1577aio_nop (SV *callback=&PL_sv_undef)
1578 ALIAS:
1579 aio_nop = EIO_NOP
1580 aio_sync = EIO_SYNC
1581 PPCODE:
1582{
1583 dREQ;
1584
1585 req->type = ix;
1586
1587 REQ_SEND;
1588}
1589
1590int
1591aioreq_pri (int pri = 0)
1592 CODE:
1593 RETVAL = next_pri;
1594 if (items > 0)
1595 {
1596 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1597 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1598 next_pri = pri;
1599 }
1600 OUTPUT:
1601 RETVAL
1602
1603void
1604aioreq_nice (int nice = 0)
1605 CODE:
1606 nice = next_pri - nice;
1607 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1608 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1609 next_pri = nice;
1213 1610
1214void 1611void
1215flush () 1612flush ()
1216 PROTOTYPE:
1217 CODE: 1613 CODE:
1218 while (nreqs) 1614 while (eio_nreqs ())
1219 { 1615 {
1220 poll_wait (); 1616 poll_wait ();
1221 poll_cb (); 1617 poll_cb ();
1222 } 1618 }
1223 1619
1224void 1620int
1225poll() 1621poll ()
1226 PROTOTYPE:
1227 CODE: 1622 CODE:
1228 if (nreqs)
1229 {
1230 poll_wait (); 1623 poll_wait ();
1231 poll_cb (); 1624 RETVAL = poll_cb ();
1232 }
1233
1234int
1235poll_fileno()
1236 PROTOTYPE:
1237 CODE:
1238 RETVAL = respipe [0];
1239 OUTPUT: 1625 OUTPUT:
1240 RETVAL 1626 RETVAL
1241 1627
1242int 1628int
1629poll_fileno ()
1630 CODE:
1631 RETVAL = s_epipe_fd (&respipe);
1632 OUTPUT:
1633 RETVAL
1634
1635int
1243poll_cb(...) 1636poll_cb (...)
1244 PROTOTYPE: 1637 PROTOTYPE:
1245 CODE: 1638 CODE:
1246 RETVAL = poll_cb (); 1639 RETVAL = poll_cb ();
1247 OUTPUT: 1640 OUTPUT:
1248 RETVAL 1641 RETVAL
1249 1642
1250void 1643void
1251poll_wait() 1644poll_wait ()
1252 PROTOTYPE:
1253 CODE: 1645 CODE:
1254 if (nreqs)
1255 poll_wait (); 1646 poll_wait ();
1256 1647
1257int 1648int
1258nreqs() 1649nreqs ()
1259 PROTOTYPE:
1260 CODE: 1650 CODE:
1261 RETVAL = nreqs; 1651 RETVAL = eio_nreqs ();
1262 OUTPUT: 1652 OUTPUT:
1263 RETVAL 1653 RETVAL
1264 1654
1655int
1656nready ()
1657 CODE:
1658 RETVAL = eio_nready ();
1659 OUTPUT:
1660 RETVAL
1661
1662int
1663npending ()
1664 CODE:
1665 RETVAL = eio_npending ();
1666 OUTPUT:
1667 RETVAL
1668
1669int
1670nthreads ()
1671 CODE:
1672 RETVAL = eio_nthreads ();
1673 OUTPUT:
1674 RETVAL
1675
1676int
1677fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1678 CODE:
1679 RETVAL = posix_fadvise (fh, offset, length, advice);
1680 OUTPUT:
1681 RETVAL
1682
1683IV
1684sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1685 CODE:
1686 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1687 OUTPUT:
1688 RETVAL
1689
1690void
1691mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1692 PPCODE:
1693 sv_unmagic (scalar, MMAP_MAGIC);
1694{
1695 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1696 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1697 if (addr == (void *)-1)
1698 XSRETURN_NO;
1699
1700 sv_force_normal (scalar);
1701
1702 /* we store the length in mg_obj, as namlen is I32 :/ */
1703 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1704 ->mg_obj = (SV *)length;
1705
1706 SvUPGRADE (scalar, SVt_PV); /* nop... */
1707
1708 if (!(prot & PROT_WRITE))
1709 SvREADONLY_on (scalar);
1710
1711 if (SvLEN (scalar))
1712 Safefree (SvPVX (scalar));
1713
1714 SvPVX (scalar) = (char *)addr;
1715 SvCUR_set (scalar, length);
1716 SvLEN_set (scalar, 0);
1717 SvPOK_only (scalar);
1718
1719 XSRETURN_YES;
1720}
1721
1722void
1723munmap (SV *scalar)
1724 CODE:
1725 sv_unmagic (scalar, MMAP_MAGIC);
1726
1727int
1728madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1729 ALIAS:
1730 mprotect = 1
1731 CODE:
1732{
1733 STRLEN svlen;
1734 void *addr = SvPVbyte (scalar, svlen);
1735 size_t len = SvUV (length);
1736
1737 if (offset < 0)
1738 offset += svlen;
1739
1740 if (offset < 0 || offset > svlen)
1741 croak ("offset outside of scalar");
1742
1743 if (!SvOK (length) || len + offset > svlen)
1744 len = svlen - offset;
1745
1746 addr = (void *)(((intptr_t)addr) + offset);
1747 eio_page_align (&addr, &len);
1748
1749 switch (ix)
1750 {
1751 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1752 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1753 }
1754}
1755 OUTPUT:
1756 RETVAL
1757
1758int
1759munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1760 CODE:
1761{
1762 STRLEN svlen;
1763 void *addr = SvPVbyte (scalar, svlen);
1764 size_t len = SvUV (length);
1765
1766 if (offset < 0)
1767 offset += svlen;
1768
1769 if (offset < 0 || offset > svlen)
1770 croak ("offset outside of scalar");
1771
1772 if (!SvOK (length) || len + offset > svlen)
1773 len = svlen - offset;
1774
1775 addr = (void *)(((intptr_t)addr) + offset);
1776 eio_page_align (&addr, &len);
1777#if _POSIX_MEMLOCK_RANGE
1778 RETVAL = munlock (addr, len);
1779#else
1780 RETVAL = EIO_ENOSYS ();
1781#endif
1782}
1783 OUTPUT:
1784 RETVAL
1785
1786int
1787munlockall ()
1788 CODE:
1789#if _POSIX_MEMLOCK
1790 munlockall ();
1791#else
1792 RETVAL = EIO_ENOSYS ();
1793#endif
1794 OUTPUT:
1795 RETVAL
1796
1797int
1798splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1799 CODE:
1800{
1801#if HAVE_LINUX_SPLICE
1802 loff_t off_in_, off_out_;
1803 RETVAL = splice (
1804 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1805 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1806 length, flags
1807 );
1808#else
1809 RETVAL = EIO_ENOSYS ();
1810#endif
1811}
1812 OUTPUT:
1813 RETVAL
1814
1815int
1816tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1817 CODE:
1818#if HAVE_LINUX_SPLICE
1819 RETVAL = tee (rfh, wfh, length, flags);
1820#else
1821 RETVAL = EIO_ENOSYS ();
1822#endif
1823 OUTPUT:
1824 RETVAL
1825
1826void _on_next_submit (SV *cb)
1827 CODE:
1828 SvREFCNT_dec (on_next_submit);
1829 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1830
1265PROTOTYPES: DISABLE 1831PROTOTYPES: DISABLE
1266 1832
1833MODULE = IO::AIO PACKAGE = IO::AIO::WD
1834
1835BOOT:
1836{
1837 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1838 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1839}
1840
1841void
1842DESTROY (SV *self)
1843 CODE:
1844{
1845 aio_wd wd = SvAIO_WD (self);
1846#if HAVE_AT
1847 {
1848 SV *callback = &PL_sv_undef;
1849 dREQ; /* clobbers next_pri :/ */
1850 next_pri = req->pri; /* restore next_pri */
1851 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1852 req->type = EIO_WD_CLOSE;
1853 req->wd = wd;
1854 REQ_SEND;
1855 }
1856#else
1857 eio_wd_close_sync (wd);
1858#endif
1859}
1860
1267MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1861MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1268 1862
1269void 1863void
1270cancel (aio_req_ornot req) 1864cancel (aio_req_ornot req)
1271 PROTOTYPE:
1272 CODE: 1865 CODE:
1273 req_cancel (req); 1866 eio_cancel (req);
1867
1868void
1869cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1870 PPCODE:
1871{
1872 if (GIMME_V != G_VOID)
1873 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1874
1875 if (items > 1)
1876 {
1877 SV *cb_cv =get_cb (callback);
1878
1879 SvREFCNT_dec (req->callback);
1880 req->callback = SvREFCNT_inc (cb_cv);
1881 }
1882}
1274 1883
1275MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1884MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1276 1885
1277void 1886void
1278add (aio_req grp, ...) 1887add (aio_req grp, ...)
1279 PPCODE: 1888 PPCODE:
1280{ 1889{
1281 int i; 1890 int i;
1282 1891
1283 if (grp->fd == 2) 1892 if (grp->int1 == 2)
1284 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1893 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1285 1894
1286 for (i = 1; i < items; ++i ) 1895 for (i = 1; i < items; ++i )
1287 { 1896 {
1897 aio_req req;
1898
1288 if (GIMME_V != G_VOID) 1899 if (GIMME_V != G_VOID)
1289 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1900 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1290 1901
1291 aio_req req = SvAIO_REQ (ST (i)); 1902 req = SvAIO_REQ (ST (i));
1292 1903
1293 if (req) 1904 if (req)
1294 { 1905 eio_grp_add (grp, req);
1295 ++grp->length;
1296 req->grp = grp;
1297
1298 req->grp_prev = 0;
1299 req->grp_next = grp->grp_first;
1300
1301 if (grp->grp_first)
1302 grp->grp_first->grp_prev = req;
1303
1304 grp->grp_first = req;
1305 }
1306 } 1906 }
1307} 1907}
1908
1909void
1910cancel_subs (aio_req_ornot req)
1911 CODE:
1912 req_cancel_subs (req);
1308 1913
1309void 1914void
1310result (aio_req grp, ...) 1915result (aio_req grp, ...)
1311 CODE: 1916 CODE:
1312{ 1917{
1313 int i; 1918 int i;
1919 AV *av;
1920
1921 grp->errorno = errno;
1922
1314 AV *av = newAV (); 1923 av = newAV ();
1924 av_extend (av, items - 1);
1315 1925
1316 for (i = 1; i < items; ++i ) 1926 for (i = 1; i < items; ++i )
1317 av_push (av, newSVsv (ST (i))); 1927 av_push (av, newSVsv (ST (i)));
1318 1928
1319 SvREFCNT_dec (grp->data); 1929 SvREFCNT_dec (grp->sv1);
1320 grp->data = (SV *)av; 1930 grp->sv1 = (SV *)av;
1321} 1931}
1322 1932
1323void 1933void
1324lock (aio_req grp) 1934errno (aio_req grp, int errorno = errno)
1935 CODE:
1936 grp->errorno = errorno;
1937
1938void
1939limit (aio_req grp, int limit)
1325 CODE: 1940 CODE:
1326 ++grp->length; 1941 eio_grp_limit (grp, limit);
1327 1942
1328void 1943void
1329unlock (aio_req grp) 1944feed (aio_req grp, SV *callback=&PL_sv_undef)
1330 CODE: 1945 CODE:
1331 aio_grp_dec (grp);
1332
1333void
1334feeder_limit (aio_req grp, int limit)
1335 CODE:
1336 grp->fd2 = limit;
1337 aio_grp_feed (grp);
1338
1339void
1340set_feeder (aio_req grp, SV *callback=&PL_sv_undef)
1341 CODE:
1342{ 1946{
1343 SvREFCNT_dec (grp->fh2); 1947 SvREFCNT_dec (grp->sv2);
1344 grp->fh2 = newSVsv (callback); 1948 grp->sv2 = newSVsv (callback);
1949 grp->feed = aio_grp_feed;
1345 1950
1346 if (grp->fd2 <= 0) 1951 if (grp->int2 <= 0)
1347 grp->fd2 = 2; 1952 grp->int2 = 2;
1348 1953
1349 aio_grp_feed (grp); 1954 eio_grp_limit (grp, grp->int2);
1350} 1955}
1351 1956

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