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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.51 by root, Sun Oct 22 22:14:33 2006 UTC vs.
Revision 1.245 by root, Fri Jun 23 03:23:19 2017 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
25# if __linux
26# include <sys/sendfile.h>
27# elif __freebsd
28# include <sys/socket.h>
29# include <sys/uio.h> 21# include <sys/mman.h>
30# elif __hpux 22#endif
23
24/* the incompetent fool that created musl keeps __linux__, refuses
25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
37
38/* perl namespace pollution */
39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
47#ifdef _WIN32
48
49 // perl overrides all those nice libc functions
50
51 #undef malloc
52 #undef free
53 #undef open
54 #undef read
55 #undef write
56 #undef send
57 #undef recv
58 #undef stat
59 #undef lstat
60 #undef fstat
61 #undef truncate
62 #undef ftruncate
63 #undef open
64 #undef link
65 #undef close
66 #undef unlink
67 #undef mkdir
68 #undef rmdir
69 #undef rename
70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
80
81 #define EIO_STRUCT_STAT struct _stati64
82 #define EIO_STRUCT_STATI64
83
84#else
85
31# include <sys/socket.h> 86 #include <sys/time.h>
32# elif __solaris /* not yet */
33# include <sys/sendfile.h> 87 #include <sys/select.h>
88 #include <unistd.h>
89 #include <utime.h>
90 #include <signal.h>
91
92 #define EIO_STRUCT_STAT Stat_t
93
94#endif
95
96/*****************************************************************************/
97
98#if __GNUC__ >= 3
99# define expect(expr,value) __builtin_expect ((expr),(value))
100#else
101# define expect(expr,value) (expr)
102#endif
103
104#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1)
106
107/*****************************************************************************/
108
109typedef SV SV8; /* byte-sv, used for argument-checking */
110typedef int aio_rfd; /* read file desriptor */
111typedef int aio_wfd; /* write file descriptor */
112
113static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114
115#define EIO_REQ_MEMBERS \
116 SV *callback; \
117 SV *sv1, *sv2; \
118 SV *sv3, *sv4; \
119 STRLEN stroffset; \
120 SV *self;
121
122#define EIO_NO_WRAPPERS 1
123
124#include "libeio/config.h"
125#include "libeio/eio.h"
126
127static int req_invoke (eio_req *req);
128#define EIO_FINISH(req) req_invoke (req)
129static void req_destroy (eio_req *grp);
130#define EIO_DESTROY(req) req_destroy (req)
131
132#include "libeio/eio.c"
133
134#if !HAVE_POSIX_FADVISE
135# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
136#endif
137
138#if !HAVE_POSIX_MADVISE
139# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
140#endif
141
142#ifndef MAP_ANONYMOUS
143# ifdef MAP_ANON
144# define MAP_ANONYMOUS MAP_ANON
34# else 145# else
35# error sendfile support requested but not available 146# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
36# endif 147# endif
37#endif 148#endif
38 149
39/* used for struct dirent, AIX doesn't provide it */ 150/* defines all sorts of constants to 0 unless they are already defined */
40#ifndef NAME_MAX 151/* also provides const_iv_ and const_niv_ macros for them */
41# define NAME_MAX 4096 152#include "def0.h"
42#endif
43 153
44#if __ia64 154#ifndef makedev
45# define STACKSIZE 65536 155# define makedev(maj,min) (((maj) << 8) | (min))
156#endif
157#ifndef major
158# define major(dev) ((dev) >> 8)
159#endif
160#ifndef minor
161# define minor(dev) ((dev) & 0xff)
162#endif
163
164#if PAGESIZE <= 0
165# define PAGESIZE sysconf (_SC_PAGESIZE)
166#endif
167
168/*****************************************************************************/
169
170static void
171fiemap (eio_req *req)
172{
173 req->result = -1;
174
175#if HAVE_FIEMAP
176 /* assume some c99 */
177 struct fiemap *fiemap = 0;
178 size_t end_offset;
179 int count = req->int3;
180
181 req->flags |= EIO_FLAG_PTR1_FREE;
182
183 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
184 /* increase in 3.5kb steps */
185 if (count < 0)
186 count = 8;
187
188 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
189 errno = ENOMEM;
190 if (!fiemap)
191 return;
192
193 req->ptr1 = fiemap;
194
195 fiemap->fm_start = req->offs;
196 fiemap->fm_length = req->size;
197 fiemap->fm_flags = req->int2;
198 fiemap->fm_extent_count = count;
199
200 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
201 return;
202
203 if (req->int3 >= 0 /* not autosizing */
204 || !fiemap->fm_mapped_extents /* no more extents */
205 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
206 goto done;
207
208 /* else we have to loop -
209 * it would be tempting (actually I tried that first) to just query the
210 * number of extents needed, but linux often feels like not returning all
211 * extents, without telling us it left any out. this complicates
212 * this quite a bit.
213 */
214
215 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
216
217 for (;;)
218 {
219 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
220 char scratch[3072];
221 struct fiemap *incmap = (struct fiemap *)scratch;
222
223 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
224 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
225 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
226 incmap->fm_flags = fiemap->fm_flags;
227 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
228
229 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
230 return;
231
232 if (!incmap->fm_mapped_extents)
233 goto done;
234
235 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
236 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
237 errno = ENOMEM;
238 if (!fiemap)
239 return;
240
241 req->ptr1 = fiemap;
242
243 for (count = 0; count < incmap->fm_mapped_extents; ++count)
244 {
245 struct fiemap_extent *e = incmap->fm_extents + count;
246
247 if (e->fe_logical + e->fe_length >= end_offset)
248 goto done;
249
250 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
251
252 if (e->fe_flags & FIEMAP_EXTENT_LAST)
253 goto done;
254
255 }
256 }
257
258done:
259 req->result = 0;
260
46#else 261#else
47# define STACKSIZE 8192 262 errno = ENOSYS;
48#endif 263#endif
264}
265
266/*****************************************************************************/
49 267
50enum { 268enum {
51 REQ_QUIT, 269 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}; 270};
63 271
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; 272typedef eio_req *aio_req;
92typedef aio_cb *aio_req_ornot; 273typedef eio_req *aio_req_ornot;
274typedef eio_wd aio_wd;
93 275
94static int started, wanted; 276static SV *on_next_submit;
95static volatile int nreqs; 277static int next_pri = EIO_PRI_DEFAULT;
96static int max_outstanding = 1<<30; 278static int max_outstanding;
97static int respipe [2];
98 279
99static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 280static s_epipe respipe;
100static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
101static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
102 281
103static volatile aio_req reqs, reqe; /* queue start, queue end */ 282static void req_destroy (aio_req req);
104static volatile aio_req ress, rese; /* queue start, queue end */
105
106static void req_invoke (aio_req req); 283static void req_cancel (aio_req req);
107static void req_free (aio_req req); 284
285static void
286want_poll (void)
287{
288 /* write a dummy byte to the pipe so fh becomes ready */
289 s_epipe_signal (&respipe);
290}
291
292static void
293done_poll (void)
294{
295 /* read any signals sent by the worker threads */
296 s_epipe_drain (&respipe);
297}
108 298
109/* must be called at most once */ 299/* must be called at most once */
110static SV *req_sv (aio_req req, const char *klass) 300static SV *
301req_sv (aio_req req, HV *stash)
111{ 302{
112 if (!req->self) 303 if (!req->self)
113 { 304 {
114 req->self = (SV *)newHV (); 305 req->self = (SV *)newHV ();
115 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 306 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
116 } 307 }
117 308
118 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 309 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
119} 310}
120 311
121static aio_req SvAIO_REQ (SV *sv) 312static SV *
313newSVaio_wd (aio_wd wd)
122{ 314{
123 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 315 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
316}
317
318static aio_req
319SvAIO_REQ (SV *sv)
320{
321 MAGIC *mg;
322
323 if (!SvROK (sv)
324 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
325 || (SvSTASH (SvRV (sv)) != aio_grp_stash
326 && SvSTASH (SvRV (sv)) != aio_req_stash
327 && !sv_derived_from (sv, "IO::AIO::REQ")))
124 croak ("object of class " AIO_REQ_KLASS " expected"); 328 croak ("object of class IO::AIO::REQ expected");
125 329
126 MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 330 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
127 331
128 return mg ? (aio_req)mg->mg_ptr : 0; 332 return mg ? (aio_req)mg->mg_ptr : 0;
129} 333}
130 334
335static aio_wd
336SvAIO_WD (SV *sv)
337{
338 if (!SvROK (sv)
339 || SvTYPE (SvRV (sv)) != SVt_PVMG
340 || SvSTASH (SvRV (sv)) != aio_wd_stash)
341 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
342
343 return (aio_wd)(long)SvIVX (SvRV (sv));
344}
345
346static SV *
347newmortalFH (int fd, int flags)
348{
349 if (fd < 0)
350 return &PL_sv_undef;
351
352 GV *gv = (GV *)sv_newmortal ();
353 char sym[64];
354 int symlen;
355
356 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
357 gv_init (gv, aio_stash, sym, symlen, 0);
358
359 symlen = snprintf (
360 sym,
361 sizeof (sym),
362 "%s&=%d",
363 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
364 fd
365 );
366
367 return do_open (gv, sym, symlen, 0, 0, 0, 0)
368 ? (SV *)gv : &PL_sv_undef;
369}
370
371static void
131static void aio_grp_feed (aio_req grp) 372aio_grp_feed (aio_req grp)
132{ 373{
133 while (grp->length < grp->fd2) 374 if (grp->sv2 && SvOK (grp->sv2))
134 { 375 {
135 int old_len = grp->length; 376 dSP;
136 377
137 if (grp->fh2 && SvOK (grp->fh2)) 378 ENTER;
379 SAVETMPS;
380 PUSHMARK (SP);
381 XPUSHs (req_sv (grp, aio_grp_stash));
382 PUTBACK;
383 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
384 SPAGAIN;
385 FREETMPS;
386 LEAVE;
387 }
388}
389
390static void
391req_submit (eio_req *req)
392{
393 eio_submit (req);
394
395 if (expect_false (on_next_submit))
396 {
397 dSP;
398 SV *cb = sv_2mortal (on_next_submit);
399
400 on_next_submit = 0;
401
402 PUSHMARK (SP);
403 PUTBACK;
404 call_sv (cb, G_DISCARD | G_EVAL);
405 }
406}
407
408static int
409req_invoke (eio_req *req)
410{
411 if (req->flags & FLAG_SV2_RO_OFF)
412 SvREADONLY_off (req->sv2);
413
414 if (!EIO_CANCELLED (req) && req->callback)
415 {
416 dSP;
417 static SV *sv_result_cache; /* caches the result integer SV */
418 SV *sv_result;
419
420 ENTER;
421 SAVETMPS;
422 PUSHMARK (SP);
423 EXTEND (SP, 1);
424
425 /* do not recreate the result IV from scratch each time */
426 if (expect_true (sv_result_cache))
138 { 427 {
139 dSP; 428 sv_result = sv_result_cache; sv_result_cache = 0;
140 429 SvIV_set (sv_result, req->result);
141 ENTER; 430 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 } 431 }
151 432 else
152 /* stop if no progress has been made */
153 if (old_len == grp->length)
154 { 433 {
155 SvREFCNT_dec (grp->fh2); 434 sv_result = newSViv (req->result);
156 grp->fh2 = 0; 435 SvREADONLY_on (sv_result);
157 break;
158 } 436 }
437
438 switch (req->type)
439 {
440 case EIO_WD_OPEN:
441 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
442 break;
443
444 case EIO_READDIR:
445 {
446 SV *rv = &PL_sv_undef;
447
448 if (req->result >= 0)
449 {
450 int i;
451 char *names = (char *)req->ptr2;
452 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
453 AV *av = newAV ();
454
455 av_extend (av, req->result - 1);
456
457 for (i = 0; i < req->result; ++i)
458 {
459 if (req->int1 & EIO_READDIR_DENTS)
460 {
461 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
462
463 if (req->int1 & EIO_READDIR_CUSTOM2)
464 {
465 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
466 AV *avent = newAV ();
467
468 av_extend (avent, 2);
469
470 if (!sv_type [ent->type])
471 {
472 sv_type [ent->type] = newSViv (ent->type);
473 SvREADONLY_on (sv_type [ent->type]);
474 }
475
476 av_store (avent, 0, namesv);
477 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
478 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
479
480 av_store (av, i, newRV_noinc ((SV *)avent));
481 }
482 else
483 av_store (av, i, namesv);
484
485 ++ent;
486 }
487 else
488 {
489 SV *name = newSVpv (names, 0);
490 av_store (av, i, name);
491 names += SvCUR (name) + 1;
492 }
493 }
494
495 rv = sv_2mortal (newRV_noinc ((SV *)av));
496 }
497
498 PUSHs (rv);
499
500 if (req->int1 & EIO_READDIR_CUSTOM1)
501 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
502 }
503 break;
504
505 case EIO_OPEN:
506 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
507 break;
508
509 case EIO_STATVFS:
510 case EIO_FSTATVFS:
511 {
512 SV *rv = &PL_sv_undef;
513
514#ifndef _WIN32
515 if (req->result >= 0)
516 {
517 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
518 HV *hv = newHV ();
519 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
520 * chooses to make it a struct.
521 */
522 unsigned long fsid = 0;
523 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
524
525 rv = sv_2mortal (newRV_noinc ((SV *)hv));
526
527 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
528 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
529 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
530 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
531 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
532 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
533 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
534 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
535 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
536 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
537 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
538 }
539#endif
540
541 PUSHs (rv);
542 }
543
544 break;
545
546 case EIO_GROUP:
547 req->int1 = 2; /* mark group as finished */
548
549 if (req->sv1)
550 {
551 int i;
552 AV *av = (AV *)req->sv1;
553
554 EXTEND (SP, AvFILL (av) + 1);
555 for (i = 0; i <= AvFILL (av); ++i)
556 PUSHs (*av_fetch (av, i, 0));
557 }
558 break;
559
560 case EIO_NOP:
561 case EIO_BUSY:
562 break;
563
564 case EIO_READLINK:
565 case EIO_REALPATH:
566 if (req->result > 0)
567 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
568 break;
569
570 case EIO_STAT:
571 case EIO_LSTAT:
572 case EIO_FSTAT:
573 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
574
575 if (!(PL_laststatval = req->result))
576 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
577 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
578
579 PUSHs (sv_result);
580 break;
581
582 case EIO_SEEK:
583 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
584 break;
585
586 case EIO_READ:
587 {
588 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
589 *SvEND (req->sv2) = 0;
590 SvPOK_only (req->sv2);
591 SvSETMAGIC (req->sv2);
592 PUSHs (sv_result);
593 }
594 break;
595
596 case EIO_CUSTOM:
597 if (req->feed == fiemap)
598 {
599#if HAVE_FIEMAP
600 if (!req->result)
601 {
602 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
603
604 if (fiemap->fm_extent_count)
605 {
606 AV *av = newAV ();
607 int i;
608
609 while (fiemap->fm_mapped_extents)
610 {
611 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
612 AV *ext_av = newAV ();
613
614 av_store (ext_av, 3, newSVuv (extent->fe_flags));
615 av_store (ext_av, 2, newSVval64 (extent->fe_length));
616 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
617 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
618
619 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
620 }
621
622 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
623 }
624 else
625 {
626 SvIV_set (sv_result, fiemap->fm_mapped_extents);
627 PUSHs (sv_result);
628 }
629 }
630#endif
631 }
632 else
633 PUSHs (sv_result);
634 break;
635
636 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
637 if (req->result > 0)
638 SvIV_set (sv_result, 0);
639 /* FALLTHROUGH */
640
641 default:
642 PUSHs (sv_result);
643 break;
644 }
645
646 errno = req->errorno;
647
648 PUTBACK;
649 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
650 SPAGAIN;
651
652 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
653 SvREFCNT_dec (sv_result);
654 else
655 sv_result_cache = sv_result;
656
657 FREETMPS;
658 LEAVE;
659
660 PUTBACK;
159 } 661 }
160}
161 662
162static void aio_grp_dec (aio_req grp) 663 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} 664}
176 665
177static void poll_wait () 666static void
667req_destroy (aio_req req)
178{ 668{
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) 669 if (req->self)
304 { 670 {
305 sv_unmagic (req->self, PERL_MAGIC_ext); 671 sv_unmagic (req->self, PERL_MAGIC_ext);
306 SvREFCNT_dec (req->self); 672 SvREFCNT_dec (req->self);
307 } 673 }
308 674
309 SvREFCNT_dec (req->data);
310 SvREFCNT_dec (req->fh); 675 SvREFCNT_dec (req->sv1);
311 SvREFCNT_dec (req->fh2); 676 SvREFCNT_dec (req->sv2);
677 SvREFCNT_dec (req->sv3);
678 SvREFCNT_dec (req->sv4);
312 SvREFCNT_dec (req->callback); 679 SvREFCNT_dec (req->callback);
313 Safefree (req->statdata);
314 680
315 if (req->type == REQ_READDIR && req->result >= 0)
316 free (req->data2ptr);
317
318 Safefree (req); 681 free (req);
319} 682}
320 683
321static void req_cancel (aio_req req) 684static void
685req_cancel_subs (aio_req grp)
322{ 686{
323 req->cancelled = 1;
324
325 if (req->type == REQ_GROUP) 687 if (grp->type != EIO_GROUP)
688 return;
689
690 SvREFCNT_dec (grp->sv2);
691 grp->sv2 = 0;
692
693 eio_grp_cancel (grp);
694}
695
696static void ecb_cold
697create_respipe (void)
698{
699 if (s_epipe_renew (&respipe))
700 croak ("IO::AIO: unable to initialize result pipe");
701}
702
703static void
704poll_wait (void)
705{
706 while (eio_nreqs ())
326 { 707 {
327 aio_req sub; 708 int size;
328 709
329 for (sub = req->grp_first; sub; sub = sub->grp_next) 710 X_LOCK (EIO_POOL->reslock);
330 req_cancel (sub); 711 size = EIO_POOL->res_queue.size;
712 X_UNLOCK (EIO_POOL->reslock);
713
714 if (size)
715 return;
716
717 etp_maybe_start_thread (EIO_POOL);
718
719 s_epipe_wait (&respipe);
331 } 720 }
332} 721}
333 722
334static int poll_cb () 723static int
724poll_cb (void)
335{ 725{
336 dSP;
337 int count = 0;
338 int do_croak = 0;
339 aio_req req;
340
341 for (;;) 726 for (;;)
342 { 727 {
343 pthread_mutex_lock (&reslock); 728 int res = eio_poll ();
344 req = ress;
345 729
346 if (req) 730 if (res > 0)
731 croak (0);
732
733 if (!max_outstanding || max_outstanding > eio_nreqs ())
734 return res;
735
736 poll_wait ();
737 }
738}
739
740static void ecb_cold
741reinit (void)
742{
743 create_respipe ();
744
745 if (eio_init (want_poll, done_poll) < 0)
746 croak ("IO::AIO: unable to initialise eio library");
747}
748
749/*****************************************************************************/
750
751#if !_POSIX_MAPPED_FILES
752# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
753# define munmap(addr,length) EIO_ENOSYS ()
754#endif
755
756#if !_POSIX_MEMORY_PROTECTION
757# define mprotect(addr,len,prot) EIO_ENOSYS ()
758#endif
759
760#define MMAP_MAGIC PERL_MAGIC_ext
761
762static int ecb_cold
763mmap_free (pTHX_ SV *sv, MAGIC *mg)
764{
765 int old_errno = errno;
766 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
767 errno = old_errno;
768
769 mg->mg_obj = 0; /* just in case */
770
771 SvREADONLY_off (sv);
772
773 if (SvPVX (sv) != mg->mg_ptr)
774 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
775
776 SvCUR_set (sv, 0);
777 SvPVX (sv) = 0;
778 SvOK_off (sv);
779
780 return 0;
781}
782
783static MGVTBL mmap_vtbl = {
784 0, 0, 0, 0, mmap_free
785};
786
787/*****************************************************************************/
788
789static SV *
790get_cb (SV *cb_sv)
791{
792 SvGETMAGIC (cb_sv);
793 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
794}
795
796static aio_req ecb_noinline
797dreq (SV *callback)
798{
799 SV *cb_cv;
800 aio_req req;
801 int req_pri = next_pri;
802 next_pri = EIO_PRI_DEFAULT;
803
804 cb_cv = get_cb (callback);
805
806 req = calloc (sizeof (*req), 1);
807 if (!req)
808 croak ("out of memory during eio_req allocation");
809
810 req->callback = SvREFCNT_inc (cb_cv);
811 req->pri = req_pri;
812
813 return req;
814}
815
816#define dREQ \
817 aio_req req = dreq (callback); \
818
819#define REQ_SEND \
820 PUTBACK; \
821 req_submit (req); \
822 SPAGAIN; \
823 \
824 if (GIMME_V != G_VOID) \
825 XPUSHs (req_sv (req, aio_req_stash));
826
827ecb_inline void
828req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
829{
830 if (expect_false (SvROK (path)))
831 {
832 SV *rv = SvRV (path);
833 SV *wdob;
834
835 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
347 { 836 {
348 ress = req->next; 837 path = AvARRAY (rv)[1];
838 wdob = AvARRAY (rv)[0];
349 839
350 if (!ress) 840 if (SvOK (wdob))
351 { 841 {
352 /* read any signals sent by the worker threads */ 842 *wd = SvAIO_WD (wdob);
353 char buf [32]; 843 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
354 while (read (respipe [0], buf, 32) == 32)
355 ;
356
357 rese = 0;
358 } 844 }
845 else
846 *wd = EIO_INVALID_WD;
359 } 847 }
360 848 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 { 849 {
372 req->fd = 1; /* mark request as delayed */ 850 *wd = (aio_wd)(long)SvIVX (rv);
373 continue; 851 *wdsv = SvREFCNT_inc_NN (rv);
852 *ptr = ".";
853 return; /* path set to "." */
374 } 854 }
375 else 855 else
376 { 856 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 } 857 }
397 858
398 return count; 859 *pathsv = newSVsv (path);
860 *ptr = SvPVbyte_nolen (*pathsv);
399} 861}
400 862
401static void *aio_proc(void *arg); 863static void ecb_noinline
402 864req_set_path1 (aio_req req, SV *path)
403static void start_thread (void)
404{ 865{
405 sigset_t fullsigset, oldsigset; 866 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} 867}
421 868
422static void req_send (aio_req req) 869static void ecb_noinline
870req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
423{ 871{
424 while (started < wanted && nreqs >= started) 872 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
425 start_thread ();
426 873
427 ++nreqs; 874 switch (SvTYPE (rv))
428
429 pthread_mutex_lock (&reqlock);
430
431 req->next = 0;
432
433 if (reqe)
434 { 875 {
435 reqe->next = req; 876 case SVt_PVIO:
436 reqe = req; 877 case SVt_PVLV:
878 case SVt_PVGV:
879 req->type = type_fh;
880 req->sv1 = newSVsv (fh_or_path);
881 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
882 break;
883
884 default:
885 req->type = type_path;
886 req_set_path1 (req, fh_or_path);
887 break;
437 } 888 }
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} 889}
455 890
456static void end_thread (void) 891XS(boot_IO__AIO) ecb_cold;
457{
458 aio_req req;
459 Newz (0, req, 1, aio_cb);
460 req->type = REQ_QUIT;
461 892
462 req_send (req); 893MODULE = IO::AIO PACKAGE = IO::AIO
463}
464 894
465static void min_parallel (int nthreads) 895PROTOTYPES: ENABLE
466{
467 if (wanted < nthreads)
468 wanted = nthreads;
469}
470 896
471static void max_parallel (int nthreads) 897BOOT:
472{ 898{
473 int cur = started; 899 static const struct {
900 const char *name;
901 IV iv;
902 } *civ, const_iv[] = {
903# define const_niv(name, value) { # name, (IV) value },
904# define const_iv(name) { # name, (IV) name },
905# define const_eio(name) { # name, (IV) EIO_ ## name },
474 906
475 if (wanted > nthreads) 907 /* you have to re-run ./gendef0 after adding/removing any constants here */
476 wanted = nthreads; 908 /* the first block can be undef if missing */
909 const_iv (ENOSYS)
910 const_iv (EXDEV)
911 const_iv (EBADR)
477 912
478 while (cur > wanted) 913 /* for lseek */
479 { 914 const_iv (SEEK_DATA)
480 end_thread (); 915 const_iv (SEEK_HOLE)
481 cur--;
482 }
483 916
484 while (started > wanted) 917 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
485 { 918 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
486 poll_wait (); 919 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
487 poll_cb (); 920 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
488 } 921 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
489} 922 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
490 923
491static void create_pipe () 924 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
492{ 925 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
493 if (pipe (respipe)) 926 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
494 croak ("unable to initialize result pipe"); 927 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
928 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
929 const_niv (MADV_FREE , POSIX_MADV_FREE)
495 930
496 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 931 /* the second block will be 0 when missing */
497 croak ("cannot set result pipe to nonblocking mode"); 932 const_iv (O_RDONLY)
933 const_iv (O_WRONLY)
934 const_iv (O_RDWR)
935 const_iv (O_CREAT)
936 const_iv (O_TRUNC)
937 const_iv (O_EXCL)
938 const_iv (O_APPEND)
498 939
499 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 940 const_iv (O_ASYNC)
500 croak ("cannot set result pipe to nonblocking mode"); 941 const_iv (O_DIRECT)
501} 942 const_iv (O_NOATIME)
502 943
503/*****************************************************************************/ 944 const_iv (O_CLOEXEC)
504/* work around various missing functions */ 945 const_iv (O_NOCTTY)
946 const_iv (O_NOFOLLOW)
947 const_iv (O_NONBLOCK)
948 const_iv (O_EXEC)
949 const_iv (O_SEARCH)
950 const_iv (O_DIRECTORY)
951 const_iv (O_DSYNC)
952 const_iv (O_RSYNC)
953 const_iv (O_SYNC)
954 const_iv (O_PATH)
955 const_iv (O_TMPFILE)
956 const_iv (O_TTY_INIT)
505 957
506#if !HAVE_PREADWRITE 958 const_iv (S_IFIFO)
507# define pread aio_pread 959 const_iv (S_IFCHR)
508# define pwrite aio_pwrite 960 const_iv (S_IFBLK)
961 const_iv (S_IFLNK)
962 const_iv (S_IFREG)
963 const_iv (S_IFDIR)
964 const_iv (S_IFWHT)
965 const_iv (S_IFSOCK)
966 const_iv (S_IFMT)
509 967
510/* 968 const_iv (ST_RDONLY)
511 * make our pread/pwrite safe against themselves, but not against 969 const_iv (ST_NOSUID)
512 * normal read/write by using a mutex. slows down execution a lot, 970 const_iv (ST_NODEV)
513 * but that's your problem, not mine. 971 const_iv (ST_NOEXEC)
514 */ 972 const_iv (ST_SYNCHRONOUS)
515static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; 973 const_iv (ST_MANDLOCK)
974 const_iv (ST_WRITE)
975 const_iv (ST_APPEND)
976 const_iv (ST_IMMUTABLE)
977 const_iv (ST_NOATIME)
978 const_iv (ST_NODIRATIME)
979 const_iv (ST_RELATIME)
516 980
517static ssize_t pread (int fd, void *buf, size_t count, off_t offset) 981 const_iv (PROT_NONE)
518{ 982 const_iv (PROT_EXEC)
519 ssize_t res; 983 const_iv (PROT_READ)
520 off_t ooffset; 984 const_iv (PROT_WRITE)
521 985
522 pthread_mutex_lock (&preadwritelock); 986 const_iv (MAP_PRIVATE)
523 ooffset = lseek (fd, 0, SEEK_CUR); 987 const_iv (MAP_SHARED)
524 lseek (fd, offset, SEEK_SET); 988 const_iv (MAP_FIXED)
525 res = read (fd, buf, count); 989 const_iv (MAP_ANONYMOUS)
526 lseek (fd, ooffset, SEEK_SET);
527 pthread_mutex_unlock (&preadwritelock);
528 990
529 return res; 991 /* linuxish */
530} 992 const_iv (MAP_LOCKED)
993 const_iv (MAP_NORESERVE)
994 const_iv (MAP_POPULATE)
995 const_iv (MAP_NONBLOCK)
996 const_iv (MAP_GROWSDOWN)
997 const_iv (MAP_32BIT)
998 const_iv (MAP_HUGETLB)
999 const_iv (MAP_STACK)
531 1000
532static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1001 const_iv (FIFREEZE)
533{ 1002 const_iv (FITHAW)
534 ssize_t res; 1003 const_iv (FITRIM)
535 off_t ooffset; 1004 const_iv (FICLONE)
1005 const_iv (FICLONERANGE)
1006 const_iv (FIDEDUPERANGE)
536 1007
537 pthread_mutex_lock (&preadwritelock); 1008 const_iv (FS_IOC_GETFLAGS)
538 ooffset = lseek (fd, 0, SEEK_CUR); 1009 const_iv (FS_IOC_SETFLAGS)
539 lseek (fd, offset, SEEK_SET); 1010 const_iv (FS_IOC_GETVERSION)
540 res = write (fd, buf, count); 1011 const_iv (FS_IOC_SETVERSION)
541 lseek (fd, offset, SEEK_SET); 1012 const_iv (FS_IOC_FIEMAP)
542 pthread_mutex_unlock (&preadwritelock); 1013 const_iv (FS_IOC_FSGETXATTR)
1014 const_iv (FS_IOC_FSSETXATTR)
1015 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1016 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1017 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
543 1018
544 return res; 1019 const_iv (FS_KEY_DESCRIPTOR_SIZE)
545}
546#endif
547 1020
548#if !HAVE_FDATASYNC 1021 const_iv (FS_SECRM_FL)
549# define fdatasync fsync 1022 const_iv (FS_UNRM_FL)
550#endif 1023 const_iv (FS_COMPR_FL)
1024 const_iv (FS_SYNC_FL)
1025 const_iv (FS_IMMUTABLE_FL)
1026 const_iv (FS_APPEND_FL)
1027 const_iv (FS_NODUMP_FL)
1028 const_iv (FS_NOATIME_FL)
1029 const_iv (FS_DIRTY_FL)
1030 const_iv (FS_COMPRBLK_FL)
1031 const_iv (FS_NOCOMP_FL)
1032 const_iv (FS_ENCRYPT_FL)
1033 const_iv (FS_BTREE_FL)
1034 const_iv (FS_INDEX_FL)
1035 const_iv (FS_JOURNAL_DATA_FL)
1036 const_iv (FS_NOTAIL_FL)
1037 const_iv (FS_DIRSYNC_FL)
1038 const_iv (FS_TOPDIR_FL)
1039 const_iv (FS_FL_USER_MODIFIABLE)
551 1040
552#if !HAVE_READAHEAD 1041 const_iv (FS_XFLAG_REALTIME)
553# define readahead aio_readahead 1042 const_iv (FS_XFLAG_PREALLOC)
1043 const_iv (FS_XFLAG_IMMUTABLE)
1044 const_iv (FS_XFLAG_APPEND)
1045 const_iv (FS_XFLAG_SYNC)
1046 const_iv (FS_XFLAG_NOATIME)
1047 const_iv (FS_XFLAG_NODUMP)
1048 const_iv (FS_XFLAG_RTINHERIT)
1049 const_iv (FS_XFLAG_PROJINHERIT)
1050 const_iv (FS_XFLAG_NOSYMLINKS)
1051 const_iv (FS_XFLAG_EXTSIZE)
1052 const_iv (FS_XFLAG_EXTSZINHERIT)
1053 const_iv (FS_XFLAG_NODEFRAG)
1054 const_iv (FS_XFLAG_FILESTREAM)
1055 const_iv (FS_XFLAG_DAX)
1056 const_iv (FS_XFLAG_HASATTR)
554 1057
555static ssize_t readahead (int fd, off_t offset, size_t count) 1058 const_iv (FIEMAP_FLAG_SYNC)
556{ 1059 const_iv (FIEMAP_FLAG_XATTR)
557 char readahead_buf[4096]; 1060 const_iv (FIEMAP_FLAGS_COMPAT)
1061 const_iv (FIEMAP_EXTENT_LAST)
1062 const_iv (FIEMAP_EXTENT_UNKNOWN)
1063 const_iv (FIEMAP_EXTENT_DELALLOC)
1064 const_iv (FIEMAP_EXTENT_ENCODED)
1065 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1066 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1067 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1068 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1069 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1070 const_iv (FIEMAP_EXTENT_MERGED)
1071 const_iv (FIEMAP_EXTENT_SHARED)
558 1072
559 while (count > 0) 1073 const_iv (SPLICE_F_MOVE)
560 { 1074 const_iv (SPLICE_F_NONBLOCK)
561 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); 1075 const_iv (SPLICE_F_MORE)
1076 const_iv (SPLICE_F_GIFT)
562 1077
563 pread (fd, readahead_buf, len, offset); 1078 /* these are libeio constants, and are independent of gendef0 */
564 offset += len; 1079 const_eio (SEEK_SET)
565 count -= len; 1080 const_eio (SEEK_CUR)
566 } 1081 const_eio (SEEK_END)
567 1082
568 errno = 0; 1083 const_eio (MCL_FUTURE)
569} 1084 const_eio (MCL_CURRENT)
570#endif
571 1085
572#if !HAVE_READDIR_R 1086 const_eio (MS_ASYNC)
573# define readdir_r aio_readdir_r 1087 const_eio (MS_INVALIDATE)
1088 const_eio (MS_SYNC)
574 1089
575static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; 1090 const_eio (MT_MODIFY)
576
577static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
578{
579 struct dirent *e;
580 int errorno;
581 1091
582 pthread_mutex_lock (&readdirlock); 1092 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1093 const_eio (SYNC_FILE_RANGE_WRITE)
1094 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
583 1095
584 e = readdir (dirp); 1096 const_eio (FALLOC_FL_KEEP_SIZE)
585 errorno = errno; 1097 const_eio (FALLOC_FL_PUNCH_HOLE)
1098 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1099 const_eio (FALLOC_FL_ZERO_RANGE)
586 1100
587 if (e) 1101 const_eio (RENAME_NOREPLACE)
588 { 1102 const_eio (RENAME_EXCHANGE)
589 *res = ent; 1103 const_eio (RENAME_WHITEOUT)
590 strcpy (ent->d_name, e->d_name);
591 }
592 else
593 *res = 0;
594 1104
595 pthread_mutex_unlock (&readdirlock); 1105 const_eio (READDIR_DENTS)
1106 const_eio (READDIR_DIRS_FIRST)
1107 const_eio (READDIR_STAT_ORDER)
1108 const_eio (READDIR_FOUND_UNKNOWN)
596 1109
597 errno = errorno; 1110 const_eio (DT_UNKNOWN)
598 return e ? 0 : -1; 1111 const_eio (DT_FIFO)
599} 1112 const_eio (DT_CHR)
600#endif 1113 const_eio (DT_DIR)
601 1114 const_eio (DT_BLK)
602/* sendfile always needs emulation */ 1115 const_eio (DT_REG)
603static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) 1116 const_eio (DT_LNK)
604{ 1117 const_eio (DT_SOCK)
605 ssize_t res; 1118 const_eio (DT_WHT)
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 } 1119 };
627 1120
628# elif __hpux 1121 aio_stash = gv_stashpv ("IO::AIO" , 1);
629 res = sendfile (ofd, ifd, offset, count, 0, 0); 1122 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1123 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1124 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
630 1125
631# elif __solaris 1126 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
632 { 1127 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
633 struct sendfilevec vec;
634 size_t sbytes;
635 1128
636 vec.sfv_fd = ifd; 1129 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
637 vec.sfv_flag = 0;
638 vec.sfv_off = offset;
639 vec.sfv_len = count;
640 1130
641 res = sendfilev (ofd, &vec, 1, &sbytes); 1131 reinit ();
1132}
642 1133
643 if (res < 0 && sbytes) 1134void
1135reinit ()
1136 PROTOTYPE:
1137
1138void
1139max_poll_reqs (unsigned int nreqs)
1140 PROTOTYPE: $
1141 CODE:
1142 eio_set_max_poll_reqs (nreqs);
1143
1144void
1145max_poll_time (double nseconds)
1146 PROTOTYPE: $
1147 CODE:
1148 eio_set_max_poll_time (nseconds);
1149
1150void
1151min_parallel (unsigned int nthreads)
1152 PROTOTYPE: $
1153 CODE:
1154 eio_set_min_parallel (nthreads);
1155
1156void
1157max_parallel (unsigned int nthreads)
1158 PROTOTYPE: $
1159 CODE:
1160 eio_set_max_parallel (nthreads);
1161
1162void
1163max_idle (unsigned int nthreads)
1164 PROTOTYPE: $
1165 CODE:
1166 eio_set_max_idle (nthreads);
1167
1168void
1169idle_timeout (unsigned int seconds)
1170 PROTOTYPE: $
1171 CODE:
1172 eio_set_idle_timeout (seconds);
1173
1174void
1175max_outstanding (unsigned int maxreqs)
1176 PROTOTYPE: $
1177 CODE:
1178 max_outstanding = maxreqs;
1179
1180void
1181aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1182 PPCODE:
1183{
1184 dREQ;
1185
1186 req->type = EIO_WD_OPEN;
1187 req_set_path1 (req, pathname);
1188
1189 REQ_SEND;
1190}
1191
1192void
1193aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1194 PPCODE:
1195{
1196 dREQ;
1197
1198 req->type = EIO_OPEN;
1199 req_set_path1 (req, pathname);
1200 req->int1 = flags;
1201 req->int2 = mode;
1202
1203 REQ_SEND;
1204}
1205
1206void
1207aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1208 ALIAS:
1209 aio_fsync = EIO_FSYNC
1210 aio_fdatasync = EIO_FDATASYNC
1211 aio_syncfs = EIO_SYNCFS
1212 PPCODE:
1213{
1214 int fd = s_fileno_croak (fh, 0);
1215 dREQ;
1216
1217 req->type = ix;
1218 req->sv1 = newSVsv (fh);
1219 req->int1 = fd;
1220
1221 REQ_SEND;
1222}
1223
1224void
1225aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1226 PPCODE:
1227{
1228 int fd = s_fileno_croak (fh, 0);
1229 dREQ;
1230
1231 req->type = EIO_SYNC_FILE_RANGE;
1232 req->sv1 = newSVsv (fh);
1233 req->int1 = fd;
1234 req->offs = offset;
644 res = sbytes; 1235 req->size = nbytes;
645 } 1236 req->int2 = flags;
646 1237
647# endif 1238 REQ_SEND;
1239}
1240
1241void
1242aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1243 PPCODE:
1244{
1245 int fd = s_fileno_croak (fh, 0);
1246 dREQ;
1247
1248 req->type = EIO_FALLOCATE;
1249 req->sv1 = newSVsv (fh);
1250 req->int1 = fd;
1251 req->int2 = mode;
1252 req->offs = offset;
1253 req->size = len;
1254
1255 REQ_SEND;
1256}
1257
1258void
1259aio_close (SV *fh, SV *callback = &PL_sv_undef)
1260 PPCODE:
1261{
1262 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1263 int fd = s_fileno_croak (fh, 0);
1264 dREQ;
1265
1266 if (expect_false (close_fd < 0))
1267 {
1268 int pipefd [2];
1269
1270 if (
1271#ifdef _WIN32
1272 _pipe (pipefd, 1, _O_BINARY) < 0
648#else 1273#else
649 res = -1; 1274 pipe (pipefd) < 0
650 errno = ENOSYS; 1275 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
651#endif 1276#endif
652 1277 || 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 { 1278 )
673 if (cnt && !res) res = -1; 1279 abort (); /*D*/
674 break;
675 }
676 1280
677 cnt = write (ofd, buf, cnt); 1281 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 } 1282 }
830 1283
831 req->errorno = errno; 1284 req->type = EIO_DUP2;
832 1285 req->int1 = close_fd;
833 pthread_mutex_lock (&reslock); 1286 req->sv2 = newSVsv (fh);
834
835 req->next = 0; 1287 req->int2 = fd;
836 1288
837 printf ("queue rese %p\n", rese);//D 1289 REQ_SEND;
838 if (rese)
839 {
840 rese->next = req;
841 rese = req;
842 }
843 else
844 {
845 rese = ress = req;
846
847 /* write a dummy byte to the pipe so fh becomes ready */
848 write (respipe [1], &respipe, 1);
849 }
850
851 pthread_mutex_unlock (&reslock);
852 }
853 while (type != REQ_QUIT);
854
855 return 0;
856} 1290}
857 1291
858/*****************************************************************************/
859
860static void atfork_prepare (void)
861{
862 pthread_mutex_lock (&reqlock);
863 pthread_mutex_lock (&reslock);
864#if !HAVE_PREADWRITE
865 pthread_mutex_lock (&preadwritelock);
866#endif
867#if !HAVE_READDIR_R
868 pthread_mutex_lock (&readdirlock);
869#endif
870}
871
872static void atfork_parent (void)
873{
874#if !HAVE_READDIR_R
875 pthread_mutex_unlock (&readdirlock);
876#endif
877#if !HAVE_PREADWRITE
878 pthread_mutex_unlock (&preadwritelock);
879#endif
880 pthread_mutex_unlock (&reslock);
881 pthread_mutex_unlock (&reqlock);
882}
883
884static void atfork_child (void)
885{
886 aio_req prv;
887
888 started = 0;
889
890 while (reqs)
891 {
892 prv = reqs;
893 reqs = prv->next;
894 req_free (prv);
895 }
896
897 reqs = reqe = 0;
898
899 while (ress)
900 {
901 prv = ress;
902 ress = prv->next;
903 req_free (prv);
904 }
905
906 ress = rese = 0;
907
908 close (respipe [0]);
909 close (respipe [1]);
910 create_pipe ();
911
912 atfork_parent ();
913}
914
915#define dREQ \
916 aio_req req; \
917 \
918 if (SvOK (callback) && !SvROK (callback)) \
919 croak ("callback must be undef or of reference type"); \
920 \
921 Newz (0, req, 1, aio_cb); \
922 if (!req) \
923 croak ("out of memory during aio_req allocation"); \
924 \
925 req->callback = newSVsv (callback)
926
927#define REQ_SEND \
928 req_send (req); \
929 \
930 if (GIMME_V != G_VOID) \
931 XPUSHs (req_sv (req, AIO_REQ_KLASS));
932
933MODULE = IO::AIO PACKAGE = IO::AIO
934
935PROTOTYPES: ENABLE
936
937BOOT:
938{
939 HV *stash = gv_stashpv ("IO::AIO", 1);
940 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
941 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
942 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
943
944 create_pipe ();
945 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
946}
947
948void 1292void
949min_parallel (nthreads) 1293aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
950 int nthreads
951 PROTOTYPE: $
952
953void
954max_parallel (nthreads)
955 int nthreads
956 PROTOTYPE: $
957
958int
959max_outstanding (nreqs)
960 int nreqs
961 PROTOTYPE: $
962 CODE: 1294 PPCODE:
963 RETVAL = max_outstanding;
964 max_outstanding = nreqs;
965
966void
967aio_open (pathname,flags,mode,callback=&PL_sv_undef)
968 SV * pathname
969 int flags
970 int mode
971 SV * callback
972 PROTOTYPE: $$$;$
973 PPCODE:
974{ 1295{
1296 int fd = s_fileno_croak (fh, 0);
975 dREQ; 1297 dREQ;
976 1298
977 req->type = REQ_OPEN; 1299 req->type = EIO_SEEK;
978 req->data = newSVsv (pathname); 1300 req->sv1 = newSVsv (fh);
979 req->dataptr = SvPVbyte_nolen (req->data); 1301 req->int1 = fd;
980 req->fd = flags; 1302 req->offs = SvVAL64 (offset);
981 req->mode = mode; 1303 req->int2 = whence;
982 1304
983 REQ_SEND; 1305 REQ_SEND;
984} 1306}
985 1307
986void 1308void
987aio_close (fh,callback=&PL_sv_undef) 1309aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
988 SV * fh
989 SV * callback
990 PROTOTYPE: $;$
991 ALIAS: 1310 ALIAS:
992 aio_close = REQ_CLOSE
993 aio_fsync = REQ_FSYNC
994 aio_fdatasync = REQ_FDATASYNC
995 PPCODE:
996{
997 dREQ;
998
999 req->type = ix;
1000 req->fh = newSVsv (fh);
1001 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1002
1003 REQ_SEND (req);
1004}
1005
1006void
1007aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1008 SV * fh
1009 UV offset
1010 UV length
1011 SV * data
1012 UV dataoffset
1013 SV * callback
1014 ALIAS:
1015 aio_read = REQ_READ 1311 aio_read = EIO_READ
1016 aio_write = REQ_WRITE 1312 aio_write = EIO_WRITE
1017 PROTOTYPE: $$$$$;$
1018 PPCODE: 1313 PPCODE:
1019{ 1314{
1020 aio_req req;
1021 STRLEN svlen; 1315 STRLEN svlen;
1316 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1022 char *svptr = SvPVbyte (data, svlen); 1317 char *svptr = SvPVbyte (data, svlen);
1023 1318 UV len = SvUV (length);
1024 SvUPGRADE (data, SVt_PV);
1025 SvPOK_on (data);
1026 1319
1027 if (dataoffset < 0) 1320 if (dataoffset < 0)
1028 dataoffset += svlen; 1321 dataoffset += svlen;
1029 1322
1030 if (dataoffset < 0 || dataoffset > svlen) 1323 if (dataoffset < 0 || dataoffset > svlen)
1031 croak ("data offset outside of string"); 1324 croak ("dataoffset outside of data scalar");
1032 1325
1033 if (ix == REQ_WRITE) 1326 if (ix == EIO_WRITE)
1034 { 1327 {
1035 /* write: check length and adjust. */ 1328 /* write: check length and adjust. */
1036 if (length < 0 || length + dataoffset > svlen) 1329 if (!SvOK (length) || len + dataoffset > svlen)
1037 length = svlen - dataoffset; 1330 len = svlen - dataoffset;
1038 } 1331 }
1039 else 1332 else
1040 { 1333 {
1041 /* read: grow scalar as necessary */ 1334 /* read: check type and grow scalar as necessary */
1335 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1042 svptr = SvGROW (data, length + dataoffset); 1336 svptr = sv_grow (data, len + dataoffset + 1);
1337 else if (SvCUR (data) < len + dataoffset)
1338 croak ("length + dataoffset outside of scalar, and cannot grow");
1043 } 1339 }
1044
1045 if (length < 0)
1046 croak ("length must not be negative");
1047 1340
1048 { 1341 {
1049 dREQ; 1342 dREQ;
1050 1343
1051 req->type = ix; 1344 req->type = ix;
1052 req->fh = newSVsv (fh); 1345 req->sv1 = newSVsv (fh);
1053 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1346 req->int1 = fd;
1054 : IoOFP (sv_2io (fh))); 1347 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1055 req->offset = offset; 1348 req->size = len;
1056 req->length = length;
1057 req->data = SvREFCNT_inc (data); 1349 req->sv2 = SvREFCNT_inc (data);
1058 req->dataptr = (char *)svptr + dataoffset; 1350 req->ptr2 = (char *)svptr + dataoffset;
1351 req->stroffset = dataoffset;
1059 1352
1060 if (!SvREADONLY (data)) 1353 if (!SvREADONLY (data))
1061 { 1354 {
1062 SvREADONLY_on (data); 1355 SvREADONLY_on (data);
1063 req->data2ptr = (void *)data; 1356 req->flags |= FLAG_SV2_RO_OFF;
1064 } 1357 }
1065 1358
1066 REQ_SEND; 1359 REQ_SEND;
1067 } 1360 }
1068} 1361}
1069 1362
1070void 1363void
1071aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1364aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1072 SV * out_fh 1365 ALIAS:
1073 SV * in_fh 1366 aio_ioctl = EIO_IOCTL
1074 UV in_offset 1367 aio_fcntl = EIO_FCNTL
1075 UV length
1076 SV * callback
1077 PROTOTYPE: $$$$;$
1078 PPCODE: 1368 PPCODE:
1079{ 1369{
1080 dREQ; 1370 int fd = s_fileno_croak (fh, 0);
1371 char *svptr;
1081 1372
1082 req->type = REQ_SENDFILE; 1373 if (SvPOK (arg) || !SvNIOK (arg))
1083 req->fh = newSVsv (out_fh);
1084 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1085 req->fh2 = newSVsv (in_fh);
1086 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1087 req->offset = in_offset;
1088 req->length = length;
1089
1090 REQ_SEND;
1091}
1092
1093void
1094aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1095 SV * fh
1096 UV offset
1097 IV length
1098 SV * callback
1099 PROTOTYPE: $$$;$
1100 PPCODE:
1101{
1102 dREQ;
1103
1104 req->type = REQ_READAHEAD;
1105 req->fh = newSVsv (fh);
1106 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1107 req->offset = offset;
1108 req->length = length;
1109
1110 REQ_SEND;
1111}
1112
1113void
1114aio_stat (fh_or_path,callback=&PL_sv_undef)
1115 SV * fh_or_path
1116 SV * callback
1117 ALIAS:
1118 aio_stat = REQ_STAT
1119 aio_lstat = REQ_LSTAT
1120 PPCODE:
1121{
1122 dREQ;
1123
1124 New (0, req->statdata, 1, Stat_t);
1125 if (!req->statdata)
1126 { 1374 {
1127 req_free (req); 1375 STRLEN svlen;
1128 croak ("out of memory during aio_req->statdata allocation"); 1376 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1129 } 1377#ifdef IOCPARM_LEN
1378 STRLEN need = IOCPARM_LEN (request);
1379#else
1380 STRLEN need = 256;
1381#endif
1130 1382
1131 if (SvPOK (fh_or_path)) 1383 if (svlen < need)
1132 { 1384 svptr = SvGROW (arg, need);
1133 req->type = ix;
1134 req->data = newSVsv (fh_or_path);
1135 req->dataptr = SvPVbyte_nolen (req->data);
1136 } 1385 }
1137 else 1386 else
1387 svptr = (char *)SvIV (arg);
1388
1138 { 1389 {
1390 dREQ;
1391
1139 req->type = REQ_FSTAT; 1392 req->type = ix;
1140 req->fh = newSVsv (fh_or_path); 1393 req->sv1 = newSVsv (fh);
1141 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1394 req->int1 = fd;
1395 req->int2 = (long)request;
1396 req->sv2 = SvREFCNT_inc (arg);
1397 req->ptr2 = svptr;
1398
1399 REQ_SEND;
1142 } 1400 }
1401}
1402
1403void
1404aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1405 ALIAS:
1406 aio_readlink = EIO_READLINK
1407 aio_realpath = EIO_REALPATH
1408 PPCODE:
1409{
1410 dREQ;
1411
1412 req->type = ix;
1413 req_set_path1 (req, pathname);
1143 1414
1144 REQ_SEND; 1415 REQ_SEND;
1145} 1416}
1146 1417
1147void 1418void
1148aio_unlink (pathname,callback=&PL_sv_undef) 1419aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1149 SV * pathname 1420 PPCODE:
1150 SV * callback 1421{
1422 int ifd = s_fileno_croak (in_fh , 0);
1423 int ofd = s_fileno_croak (out_fh, 1);
1424 dREQ;
1425
1426 req->type = EIO_SENDFILE;
1427 req->sv1 = newSVsv (out_fh);
1428 req->int1 = ofd;
1429 req->sv2 = newSVsv (in_fh);
1430 req->int2 = ifd;
1431 req->offs = in_offset;
1432 req->size = length;
1433
1434 REQ_SEND;
1435}
1436
1437void
1438aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1439 PPCODE:
1440{
1441 int fd = s_fileno_croak (fh, 0);
1442 dREQ;
1443
1444 req->type = EIO_READAHEAD;
1445 req->sv1 = newSVsv (fh);
1446 req->int1 = fd;
1447 req->offs = offset;
1448 req->size = length;
1449
1450 REQ_SEND;
1451}
1452
1453void
1454aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1151 ALIAS: 1455 ALIAS:
1456 aio_stat = EIO_STAT
1457 aio_lstat = EIO_LSTAT
1458 aio_statvfs = EIO_STATVFS
1459 PPCODE:
1460{
1461 dREQ;
1462
1463 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1464
1465 REQ_SEND;
1466}
1467
1468UV
1469major (UV dev)
1470 ALIAS:
1471 minor = 1
1472 CODE:
1473 RETVAL = ix ? minor (dev) : major (dev);
1474 OUTPUT:
1475 RETVAL
1476
1477UV
1478makedev (UV maj, UV min)
1479 CODE:
1480 RETVAL = makedev (maj, min);
1481 OUTPUT:
1482 RETVAL
1483
1484void
1485aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1486 PPCODE:
1487{
1488 dREQ;
1489
1490 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1491 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1492 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1493
1494 REQ_SEND;
1495}
1496
1497void
1498aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1499 PPCODE:
1500{
1501 dREQ;
1502
1503 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1504 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1505
1506 REQ_SEND;
1507}
1508
1509void
1510aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1511 PPCODE:
1512{
1513 dREQ;
1514
1515 req->int2 = mode;
1516 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1517
1518 REQ_SEND;
1519}
1520
1521void
1522aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1523 PPCODE:
1524{
1525 dREQ;
1526
1527 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1528 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1529 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1530
1531 REQ_SEND;
1532}
1533
1534void
1535aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1536 PPCODE:
1537{
1538 dREQ;
1539
1540 req->type = EIO_READDIR;
1541 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1542
1543 if (flags & EIO_READDIR_DENTS)
1544 req->int1 |= EIO_READDIR_CUSTOM2;
1545
1546 req_set_path1 (req, pathname);
1547
1548 REQ_SEND;
1549}
1550
1551void
1552aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1553 PPCODE:
1554{
1555 dREQ;
1556
1557 req->type = EIO_MKDIR;
1558 req->int2 = mode;
1559 req_set_path1 (req, pathname);
1560
1561 REQ_SEND;
1562}
1563
1564void
1565aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1566 ALIAS:
1152 aio_unlink = REQ_UNLINK 1567 aio_unlink = EIO_UNLINK
1153 aio_rmdir = REQ_RMDIR 1568 aio_rmdir = EIO_RMDIR
1154 aio_readdir = REQ_READDIR 1569 aio_readdir = EIO_READDIR
1155 PPCODE: 1570 PPCODE:
1156{ 1571{
1157 dREQ; 1572 dREQ;
1158 1573
1159 req->type = ix; 1574 req->type = ix;
1160 req->data = newSVsv (pathname); 1575 req_set_path1 (req, pathname);
1161 req->dataptr = SvPVbyte_nolen (req->data); 1576
1162
1163 REQ_SEND; 1577 REQ_SEND;
1164} 1578}
1165 1579
1166void 1580void
1167aio_link (oldpath,newpath,callback=&PL_sv_undef) 1581aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1168 SV * oldpath
1169 SV * newpath
1170 SV * callback
1171 ALIAS: 1582 ALIAS:
1172 aio_link = REQ_LINK 1583 aio_link = EIO_LINK
1173 aio_symlink = REQ_SYMLINK 1584 aio_symlink = EIO_SYMLINK
1174 aio_rename = REQ_RENAME 1585 aio_rename = EIO_RENAME
1175 PPCODE: 1586 PPCODE:
1176{ 1587{
1588 eio_wd wd2 = 0;
1177 dREQ; 1589 dREQ;
1178 1590
1179 req->type = ix; 1591 req->type = ix;
1180 req->fh = newSVsv (oldpath); 1592 req_set_path1 (req, oldpath);
1181 req->data2ptr = SvPVbyte_nolen (req->fh); 1593 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1182 req->data = newSVsv (newpath); 1594 req->int3 = (long)wd2;
1183 req->dataptr = SvPVbyte_nolen (req->data);
1184 1595
1185 REQ_SEND; 1596 REQ_SEND;
1186} 1597}
1187 1598
1188void 1599void
1189aio_sleep (delay,callback=&PL_sv_undef) 1600aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1190 double delay
1191 SV * callback
1192 PPCODE: 1601 PPCODE:
1193{ 1602{
1603 eio_wd wd2 = 0;
1194 dREQ; 1604 dREQ;
1195 1605
1196 req->type = REQ_SLEEP; 1606 req->type = EIO_RENAME;
1197 req->fd = delay < 0. ? 0 : delay; 1607 req_set_path1 (req, oldpath);
1198 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1608 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1199 1609 req->int2 = flags;
1610 req->int3 = (long)wd2;
1611
1200 REQ_SEND; 1612 REQ_SEND;
1201} 1613}
1202 1614
1203void 1615void
1204aio_group (callback=&PL_sv_undef) 1616aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1205 SV * callback 1617 PPCODE:
1206 PROTOTYPE: ;$ 1618{
1619 dREQ;
1620
1621 req->type = EIO_MKNOD;
1622 req->int2 = (mode_t)mode;
1623 req->offs = dev;
1624 req_set_path1 (req, pathname);
1625
1626 REQ_SEND;
1627}
1628
1629void
1630aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1631 ALIAS:
1632 aio_mtouch = EIO_MTOUCH
1633 aio_msync = EIO_MSYNC
1207 PPCODE: 1634 PPCODE:
1208{ 1635{
1636 STRLEN svlen;
1637 char *svptr = SvPVbyte (data, svlen);
1638 UV len = SvUV (length);
1639
1640 if (flags < 0)
1641 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1642
1643 if (offset < 0)
1644 offset += svlen;
1645
1646 if (offset < 0 || offset > svlen)
1647 croak ("offset outside of scalar");
1648
1649 if (!SvOK (length) || len + offset > svlen)
1650 len = svlen - offset;
1651
1652 {
1653 dREQ;
1654
1655 req->type = ix;
1656 req->sv2 = SvREFCNT_inc (data);
1657 req->ptr2 = (char *)svptr + offset;
1658 req->size = len;
1659 req->int1 = flags;
1660
1661 REQ_SEND;
1662 }
1663}
1664
1665void
1666aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1667 PPCODE:
1668{
1669 STRLEN svlen;
1670 char *svptr = SvPVbyte (data, svlen);
1671 UV len = SvUV (length);
1672
1673 if (offset < 0)
1674 offset += svlen;
1675
1676 if (offset < 0 || offset > svlen)
1677 croak ("offset outside of scalar");
1678
1679 if (!SvOK (length) || len + offset > svlen)
1680 len = svlen - offset;
1681
1682 {
1683 dREQ;
1684
1685 req->type = EIO_MLOCK;
1686 req->sv2 = SvREFCNT_inc (data);
1687 req->ptr2 = (char *)svptr + offset;
1688 req->size = len;
1689
1690 REQ_SEND;
1691 }
1692}
1693
1694void
1695aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1696 PPCODE:
1697{
1698 dREQ;
1699
1700 req->type = EIO_MLOCKALL;
1701 req->int1 = flags;
1702
1703 REQ_SEND;
1704}
1705
1706void
1707aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1708 PPCODE:
1709{
1710 int fd = s_fileno_croak (fh, 0);
1209 dREQ; 1711 dREQ;
1712
1713 req->type = EIO_CUSTOM;
1714 req->sv1 = newSVsv (fh);
1715 req->int1 = fd;
1716
1717 req->feed = fiemap;
1718#if HAVE_FIEMAP
1719 /* keep our fingers crossed that the next two types are 64 bit */
1720 req->offs = start;
1721 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1722 req->int2 = flags;
1723 req->int3 = SvOK (count) ? SvIV (count) : -1;
1724#endif
1725
1726 REQ_SEND;
1727}
1728
1729void
1730aio_busy (double delay, SV *callback = &PL_sv_undef)
1731 PPCODE:
1732{
1733 dREQ;
1734
1735 req->type = EIO_BUSY;
1736 req->nv1 = delay < 0. ? 0. : delay;
1737
1738 REQ_SEND;
1739}
1740
1741void
1742aio_group (SV *callback = &PL_sv_undef)
1743 PPCODE:
1744{
1745 dREQ;
1746
1210 req->type = REQ_GROUP; 1747 req->type = EIO_GROUP;
1748
1749 PUTBACK;
1211 req_send (req); 1750 req_submit (req);
1751 SPAGAIN;
1752
1212 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1753 XPUSHs (req_sv (req, aio_grp_stash));
1213} 1754}
1755
1756void
1757aio_nop (SV *callback = &PL_sv_undef)
1758 ALIAS:
1759 aio_nop = EIO_NOP
1760 aio_sync = EIO_SYNC
1761 PPCODE:
1762{
1763 dREQ;
1764
1765 req->type = ix;
1766
1767 REQ_SEND;
1768}
1769
1770int
1771aioreq_pri (int pri = NO_INIT)
1772 CODE:
1773 RETVAL = next_pri;
1774 if (items > 0)
1775 {
1776 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1777 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1778 next_pri = pri;
1779 }
1780 OUTPUT:
1781 RETVAL
1782
1783void
1784aioreq_nice (int nice = 0)
1785 CODE:
1786 nice = next_pri - nice;
1787 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1788 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1789 next_pri = nice;
1214 1790
1215void 1791void
1216flush () 1792flush ()
1217 PROTOTYPE:
1218 CODE: 1793 CODE:
1219 while (nreqs) 1794 while (eio_nreqs ())
1220 { 1795 {
1221 poll_wait (); 1796 poll_wait ();
1222 poll_cb (); 1797 poll_cb ();
1223 } 1798 }
1224 1799
1225void 1800int
1226poll() 1801poll ()
1227 PROTOTYPE:
1228 CODE: 1802 CODE:
1229 if (nreqs)
1230 {
1231 poll_wait (); 1803 poll_wait ();
1232 poll_cb (); 1804 RETVAL = poll_cb ();
1233 }
1234
1235int
1236poll_fileno()
1237 PROTOTYPE:
1238 CODE:
1239 RETVAL = respipe [0];
1240 OUTPUT: 1805 OUTPUT:
1241 RETVAL 1806 RETVAL
1242 1807
1243int 1808int
1809poll_fileno ()
1810 CODE:
1811 RETVAL = s_epipe_fd (&respipe);
1812 OUTPUT:
1813 RETVAL
1814
1815int
1244poll_cb(...) 1816poll_cb (...)
1245 PROTOTYPE: 1817 PROTOTYPE:
1246 CODE: 1818 CODE:
1247 RETVAL = poll_cb (); 1819 RETVAL = poll_cb ();
1248 OUTPUT: 1820 OUTPUT:
1249 RETVAL 1821 RETVAL
1250 1822
1251void 1823void
1252poll_wait() 1824poll_wait ()
1253 PROTOTYPE:
1254 CODE: 1825 CODE:
1255 if (nreqs)
1256 poll_wait (); 1826 poll_wait ();
1257 1827
1258int 1828int
1259nreqs() 1829nreqs ()
1260 PROTOTYPE:
1261 CODE: 1830 CODE:
1262 RETVAL = nreqs; 1831 RETVAL = eio_nreqs ();
1263 OUTPUT: 1832 OUTPUT:
1264 RETVAL 1833 RETVAL
1265 1834
1835int
1836nready ()
1837 CODE:
1838 RETVAL = eio_nready ();
1839 OUTPUT:
1840 RETVAL
1841
1842int
1843npending ()
1844 CODE:
1845 RETVAL = eio_npending ();
1846 OUTPUT:
1847 RETVAL
1848
1849int
1850nthreads ()
1851 CODE:
1852 RETVAL = eio_nthreads ();
1853 OUTPUT:
1854 RETVAL
1855
1856int
1857fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1858 CODE:
1859 RETVAL = posix_fadvise (fh, offset, length, advice);
1860 OUTPUT:
1861 RETVAL
1862
1863IV
1864sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1865 CODE:
1866 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1867 OUTPUT:
1868 RETVAL
1869
1870void
1871mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1872 PPCODE:
1873 sv_unmagic (scalar, MMAP_MAGIC);
1874{
1875 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1876 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1877 if (addr == (void *)-1)
1878 XSRETURN_NO;
1879
1880 sv_force_normal (scalar);
1881
1882 /* we store the length in mg_obj, as namlen is I32 :/ */
1883 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1884 ->mg_obj = (SV *)length;
1885
1886 SvUPGRADE (scalar, SVt_PV); /* nop... */
1887
1888 if (!(prot & PROT_WRITE))
1889 SvREADONLY_on (scalar);
1890
1891 if (SvLEN (scalar))
1892 Safefree (SvPVX (scalar));
1893
1894 SvPVX (scalar) = (char *)addr;
1895 SvCUR_set (scalar, length);
1896 SvLEN_set (scalar, 0);
1897 SvPOK_only (scalar);
1898
1899 XSRETURN_YES;
1900}
1901
1902void
1903munmap (SV *scalar)
1904 CODE:
1905 sv_unmagic (scalar, MMAP_MAGIC);
1906
1907int
1908madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1909 ALIAS:
1910 mprotect = 1
1911 CODE:
1912{
1913 STRLEN svlen;
1914 void *addr = SvPVbyte (scalar, svlen);
1915 STRLEN len = SvUV (length);
1916
1917 if (offset < 0)
1918 offset += svlen;
1919
1920 if (offset < 0 || offset > svlen)
1921 croak ("offset outside of scalar");
1922
1923 if (!SvOK (length) || len + offset > svlen)
1924 len = svlen - offset;
1925
1926 addr = (void *)(((intptr_t)addr) + offset);
1927 eio_page_align (&addr, &len);
1928
1929 switch (ix)
1930 {
1931 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1932 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1933 }
1934}
1935 OUTPUT:
1936 RETVAL
1937
1938int
1939munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1940 CODE:
1941{
1942 STRLEN svlen;
1943 void *addr = SvPVbyte (scalar, svlen);
1944 size_t len = SvUV (length);
1945
1946 if (offset < 0)
1947 offset += svlen;
1948
1949 if (offset < 0 || offset > svlen)
1950 croak ("offset outside of scalar");
1951
1952 if (!SvOK (length) || len + offset > svlen)
1953 len = svlen - offset;
1954
1955 addr = (void *)(((intptr_t)addr) + offset);
1956 eio_page_align (&addr, &len);
1957#if _POSIX_MEMLOCK_RANGE
1958 RETVAL = munlock (addr, len);
1959#else
1960 RETVAL = EIO_ENOSYS ();
1961#endif
1962}
1963 OUTPUT:
1964 RETVAL
1965
1966int
1967munlockall ()
1968 CODE:
1969#if _POSIX_MEMLOCK
1970 munlockall ();
1971#else
1972 RETVAL = EIO_ENOSYS ();
1973#endif
1974 OUTPUT:
1975 RETVAL
1976
1977int
1978splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1979 CODE:
1980{
1981#if HAVE_LINUX_SPLICE
1982 loff_t off_in_, off_out_;
1983 RETVAL = splice (
1984 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1985 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1986 length, flags
1987 );
1988#else
1989 RETVAL = EIO_ENOSYS ();
1990#endif
1991}
1992 OUTPUT:
1993 RETVAL
1994
1995int
1996tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
1997 CODE:
1998#if HAVE_LINUX_SPLICE
1999 RETVAL = tee (rfh, wfh, length, flags);
2000#else
2001 RETVAL = EIO_ENOSYS ();
2002#endif
2003 OUTPUT:
2004 RETVAL
2005
2006int
2007pipesize (aio_rfd rfh, int new_size = -1)
2008 PROTOTYPE: $;$
2009 CODE:
2010#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2011 if (new_size >= 0)
2012 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2013 else
2014 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2015#else
2016 errno = ENOSYS;
2017 RETVAL = -1;
2018#endif
2019 OUTPUT:
2020 RETVAL
2021
2022void
2023pipe2 (int flags = 0)
2024 PROTOTYPE: ;$
2025 PPCODE:
2026{
2027 int fd[2];
2028 int res;
2029
2030 if (flags)
2031#if HAVE_PIPE2
2032 res = pipe2 (fd, flags);
2033#else
2034 res = (errno = ENOSYS, -1);
2035#endif
2036 else
2037 res = pipe (fd);
2038
2039 if (!res)
2040 {
2041 EXTEND (SP, 2);
2042 PUSHs (newmortalFH (fd[0], O_RDONLY));
2043 PUSHs (newmortalFH (fd[1], O_WRONLY));
2044 }
2045}
2046
2047void _on_next_submit (SV *cb)
2048 CODE:
2049 SvREFCNT_dec (on_next_submit);
2050 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2051
1266PROTOTYPES: DISABLE 2052PROTOTYPES: DISABLE
1267 2053
2054MODULE = IO::AIO PACKAGE = IO::AIO::WD
2055
2056BOOT:
2057{
2058 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2059 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2060}
2061
2062void
2063DESTROY (SV *self)
2064 CODE:
2065{
2066 aio_wd wd = SvAIO_WD (self);
2067#if HAVE_AT
2068 {
2069 SV *callback = &PL_sv_undef;
2070 dREQ; /* clobbers next_pri :/ */
2071 next_pri = req->pri; /* restore next_pri */
2072 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2073 req->type = EIO_WD_CLOSE;
2074 req->wd = wd;
2075 REQ_SEND;
2076 }
2077#else
2078 eio_wd_close_sync (wd);
2079#endif
2080}
2081
1268MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2082MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1269 2083
1270void 2084void
1271cancel (aio_req_ornot req) 2085cancel (aio_req_ornot req)
1272 PROTOTYPE:
1273 CODE: 2086 CODE:
1274 req_cancel (req); 2087 eio_cancel (req);
2088
2089void
2090cb (aio_req_ornot req, SV *callback = NO_INIT)
2091 PPCODE:
2092{
2093 if (GIMME_V != G_VOID)
2094 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2095
2096 if (items > 1)
2097 {
2098 SV *cb_cv = get_cb (callback);
2099
2100 SvREFCNT_dec (req->callback);
2101 req->callback = SvREFCNT_inc (cb_cv);
2102 }
2103}
1275 2104
1276MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2105MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1277 2106
1278void 2107void
1279add (aio_req grp, ...) 2108add (aio_req grp, ...)
1280 PPCODE: 2109 PPCODE:
1281{ 2110{
1282 int i; 2111 int i;
1283 2112
1284 if (grp->fd == 2) 2113 if (grp->int1 == 2)
1285 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2114 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1286 2115
1287 for (i = 1; i < items; ++i ) 2116 for (i = 1; i < items; ++i )
1288 { 2117 {
2118 aio_req req;
2119
1289 if (GIMME_V != G_VOID) 2120 if (GIMME_V != G_VOID)
1290 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2121 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1291 2122
1292 aio_req req = SvAIO_REQ (ST (i)); 2123 req = SvAIO_REQ (ST (i));
1293 2124
1294 if (req) 2125 if (req)
1295 { 2126 eio_grp_add (grp, req);
1296 ++grp->length;
1297 req->grp = grp;
1298
1299 req->grp_prev = 0;
1300 req->grp_next = grp->grp_first;
1301
1302 if (grp->grp_first)
1303 grp->grp_first->grp_prev = req;
1304
1305 grp->grp_first = req;
1306 }
1307 } 2127 }
1308} 2128}
2129
2130void
2131cancel_subs (aio_req_ornot req)
2132 CODE:
2133 req_cancel_subs (req);
1309 2134
1310void 2135void
1311result (aio_req grp, ...) 2136result (aio_req grp, ...)
1312 CODE: 2137 CODE:
1313{ 2138{
1314 int i; 2139 int i;
2140 AV *av;
2141
2142 grp->errorno = errno;
2143
1315 AV *av = newAV (); 2144 av = newAV ();
2145 av_extend (av, items - 1);
1316 2146
1317 for (i = 1; i < items; ++i ) 2147 for (i = 1; i < items; ++i )
1318 av_push (av, newSVsv (ST (i))); 2148 av_push (av, newSVsv (ST (i)));
1319 2149
1320 SvREFCNT_dec (grp->data); 2150 SvREFCNT_dec (grp->sv1);
1321 grp->data = (SV *)av; 2151 grp->sv1 = (SV *)av;
1322} 2152}
1323 2153
1324void 2154void
1325lock (aio_req grp) 2155errno (aio_req grp, int errorno = errno)
2156 CODE:
2157 grp->errorno = errorno;
2158
2159void
2160limit (aio_req grp, int limit)
1326 CODE: 2161 CODE:
1327 ++grp->length; 2162 eio_grp_limit (grp, limit);
1328 2163
1329void 2164void
1330unlock (aio_req grp) 2165feed (aio_req grp, SV *callback = &PL_sv_undef)
1331 CODE: 2166 CODE:
1332 aio_grp_dec (grp);
1333
1334void
1335feeder_limit (aio_req grp, int limit)
1336 CODE:
1337 grp->fd2 = limit;
1338 aio_grp_feed (grp);
1339
1340void
1341set_feeder (aio_req grp, SV *callback=&PL_sv_undef)
1342 CODE:
1343{ 2167{
1344 SvREFCNT_dec (grp->fh2); 2168 SvREFCNT_dec (grp->sv2);
1345 grp->fh2 = newSVsv (callback); 2169 grp->sv2 = newSVsv (callback);
2170 grp->feed = aio_grp_feed;
1346 2171
1347 if (grp->fd2 <= 0) 2172 if (grp->int2 <= 0)
1348 grp->fd2 = 2; 2173 grp->int2 = 2;
1349 2174
1350 aio_grp_feed (grp); 2175 eio_grp_limit (grp, grp->int2);
1351} 2176}
1352 2177

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