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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.49 by root, Sun Oct 22 13:33:28 2006 UTC vs.
Revision 1.249 by root, Fri Jun 23 23:50:25 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_free (aio_req req); 283static void req_cancel (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}
107 298
108/* must be called at most once */ 299/* must be called at most once */
109static SV *req_sv (aio_req req, const char *klass) 300static SV *
301req_sv (aio_req req, HV *stash)
110{ 302{
111 if (!req->self) 303 if (!req->self)
112 { 304 {
113 req->self = (SV *)newHV (); 305 req->self = (SV *)newHV ();
114 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 306 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
115 } 307 }
116 308
117 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 309 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
118} 310}
119 311
120static aio_req SvAIO_REQ (SV *sv) 312static SV *
313newSVaio_wd (aio_wd wd)
121{ 314{
122 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")))
123 croak ("object of class " AIO_REQ_KLASS " expected"); 328 croak ("object of class IO::AIO::REQ expected");
124 329
125 MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 330 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
126 331
127 return mg ? (aio_req)mg->mg_ptr : 0; 332 return mg ? (aio_req)mg->mg_ptr : 0;
128} 333}
129 334
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
130static void aio_grp_feed (aio_req grp) 372aio_grp_feed (aio_req grp)
131{ 373{
132 while (grp->length < grp->fd2) 374 if (grp->sv2 && SvOK (grp->sv2))
133 { 375 {
134 int old_len = grp->length; 376 dSP;
135 377
136 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))
137 { 427 {
138 dSP; 428 sv_result = sv_result_cache; sv_result_cache = 0;
139 429 SvIV_set (sv_result, req->result);
140 ENTER; 430 SvIOK_only (sv_result);
141 SAVETMPS;
142 PUSHMARK (SP);
143 XPUSHs (req_sv (grp, AIO_GRP_KLASS));
144 PUTBACK;
145 call_sv (grp->fh2, G_VOID | G_EVAL);
146 SPAGAIN;
147 FREETMPS;
148 LEAVE;
149 } 431 }
150 432 else
151 /* stop if no progress has been made */
152 if (old_len == grp->length)
153 { 433 {
154 SvREFCNT_dec (grp->fh2); 434 sv_result = newSViv (req->result);
155 grp->fh2 = 0; 435 SvREADONLY_on (sv_result);
156 break;
157 } 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;
158 } 661 }
159}
160 662
161static void poll_wait () 663 return !!SvTRUE (ERRSV);
162{
163 if (nreqs && !ress)
164 {
165 fd_set rfd;
166 FD_ZERO(&rfd);
167 FD_SET(respipe [0], &rfd);
168
169 select (respipe [0] + 1, &rfd, 0, 0, 0);
170 }
171} 664}
172 665
173static void req_invoke (aio_req req) 666static void
667req_destroy (aio_req req)
174{ 668{
175 dSP;
176 int errorno = errno;
177
178 if (req->cancelled || !SvOK (req->callback))
179 return;
180
181 errno = req->errorno;
182
183 ENTER;
184 SAVETMPS;
185 PUSHMARK (SP);
186 EXTEND (SP, 1);
187
188 switch (req->type)
189 {
190 case REQ_READDIR:
191 {
192 SV *rv = &PL_sv_undef;
193
194 if (req->result >= 0)
195 {
196 char *buf = req->data2ptr;
197 AV *av = newAV ();
198
199 while (req->result)
200 {
201 SV *sv = newSVpv (buf, 0);
202
203 av_push (av, sv);
204 buf += SvCUR (sv) + 1;
205 req->result--;
206 }
207
208 rv = sv_2mortal (newRV_noinc ((SV *)av));
209 }
210
211 PUSHs (rv);
212 }
213 break;
214
215 case REQ_OPEN:
216 {
217 /* convert fd to fh */
218 SV *fh;
219
220 PUSHs (sv_2mortal (newSViv (req->result)));
221 PUTBACK;
222 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
223 SPAGAIN;
224
225 fh = SvREFCNT_inc (POPs);
226
227 PUSHMARK (SP);
228 XPUSHs (sv_2mortal (fh));
229 }
230 break;
231
232 case REQ_GROUP:
233 req->fd = 2; /* mark group as finished */
234
235 if (req->data)
236 {
237 int i;
238 AV *av = (AV *)req->data;
239
240 EXTEND (SP, AvFILL (av) + 1);
241 for (i = 0; i <= AvFILL (av); ++i)
242 PUSHs (*av_fetch (av, i, 0));
243 }
244 break;
245
246 case REQ_SLEEP:
247 break;
248
249 default:
250 PUSHs (sv_2mortal (newSViv (req->result)));
251 break;
252 }
253
254
255 PUTBACK;
256 call_sv (req->callback, G_VOID | G_EVAL);
257 SPAGAIN;
258
259 if (SvTRUE (ERRSV))
260 {
261 req_free (req);
262 croak (0);
263 }
264
265 FREETMPS;
266 LEAVE;
267
268 errno = errorno;
269}
270
271static void req_free (aio_req req)
272{
273 if (req->grp)
274 {
275 aio_req grp = req->grp;
276
277 /* unlink request */
278 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
279 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
280
281 if (grp->grp_first == req)
282 grp->grp_first = req->grp_next;
283
284 --grp->length;
285
286 /* call feeder, if applicable */
287 aio_grp_feed (grp);
288
289 /* finish, if done */
290 if (!grp->length && grp->fd)
291 {
292 req_invoke (grp);
293 req_free (grp);
294 }
295 }
296
297 if (req->self) 669 if (req->self)
298 { 670 {
299 sv_unmagic (req->self, PERL_MAGIC_ext); 671 sv_unmagic (req->self, PERL_MAGIC_ext);
300 SvREFCNT_dec (req->self); 672 SvREFCNT_dec (req->self);
301 } 673 }
302 674
303 SvREFCNT_dec (req->data);
304 SvREFCNT_dec (req->fh); 675 SvREFCNT_dec (req->sv1);
305 SvREFCNT_dec (req->fh2); 676 SvREFCNT_dec (req->sv2);
677 SvREFCNT_dec (req->sv3);
678 SvREFCNT_dec (req->sv4);
306 SvREFCNT_dec (req->callback); 679 SvREFCNT_dec (req->callback);
307 Safefree (req->statdata);
308 680
309 if (req->type == REQ_READDIR && req->result >= 0)
310 free (req->data2ptr);
311
312 Safefree (req); 681 free (req);
313} 682}
314 683
315static void req_cancel (aio_req req) 684static void
685req_cancel_subs (aio_req grp)
316{ 686{
317 req->cancelled = 1;
318
319 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 ())
320 { 707 {
321 aio_req sub; 708 int size;
322 709
323 for (sub = req->grp_first; sub; sub = sub->grp_next) 710 X_LOCK (EIO_POOL->reslock);
324 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);
325 } 720 }
326} 721}
327 722
328static int poll_cb () 723static int
724poll_cb (void)
329{ 725{
330 dSP;
331 int count = 0;
332 int do_croak = 0;
333 aio_req req;
334
335 for (;;) 726 for (;;)
336 { 727 {
337 pthread_mutex_lock (&reslock); 728 int res = eio_poll ();
338 req = ress;
339 729
340 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)
341 { 836 {
342 ress = req->next; 837 path = AvARRAY (rv)[1];
838 wdob = AvARRAY (rv)[0];
343 839
344 if (!ress) 840 if (SvOK (wdob))
345 { 841 {
346 /* read any signals sent by the worker threads */ 842 *wd = SvAIO_WD (wdob);
347 char buf [32]; 843 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
348 while (read (respipe [0], buf, 32) == 32)
349 ;
350
351 rese = 0;
352 } 844 }
845 else
846 *wd = EIO_INVALID_WD;
353 } 847 }
354 848 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
355 pthread_mutex_unlock (&reslock);
356
357 if (!req)
358 break;
359
360 nreqs--;
361
362 if (req->type == REQ_QUIT)
363 started--;
364 else if (req->type == REQ_GROUP && req->length)
365 { 849 {
366 req->fd = 1; /* mark request as delayed */ 850 *wd = (aio_wd)(long)SvIVX (rv);
367 continue; 851 *wdsv = SvREFCNT_inc_NN (rv);
852 *ptr = ".";
853 return; /* path set to "." */
368 } 854 }
369 else 855 else
370 { 856 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
371 if (req->type == REQ_READ)
372 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
373
374 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
375 SvREADONLY_off (req->data);
376
377 if (req->statdata)
378 {
379 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
380 PL_laststatval = req->result;
381 PL_statcache = *(req->statdata);
382 }
383
384 req_invoke (req);
385
386 count++;
387 }
388
389 req_free (req);
390 } 857 }
391 858
392 return count; 859 *pathsv = newSVsv (path);
860 *ptr = SvPVbyte_nolen (*pathsv);
393} 861}
394 862
395static void *aio_proc(void *arg); 863static void ecb_noinline
396 864req_set_path1 (aio_req req, SV *path)
397static void start_thread (void)
398{ 865{
399 sigset_t fullsigset, oldsigset; 866 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
400 pthread_t tid;
401 pthread_attr_t attr;
402
403 pthread_attr_init (&attr);
404 pthread_attr_setstacksize (&attr, STACKSIZE);
405 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
406
407 sigfillset (&fullsigset);
408 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
409
410 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
411 started++;
412
413 sigprocmask (SIG_SETMASK, &oldsigset, 0);
414} 867}
415 868
416static 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)
417{ 871{
418 while (started < wanted && nreqs >= started) 872 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
419 start_thread ();
420 873
421 nreqs++; 874 switch (SvTYPE (rv))
422
423 pthread_mutex_lock (&reqlock);
424
425 req->next = 0;
426
427 if (reqe)
428 { 875 {
429 reqe->next = req; 876 case SVt_PVIO:
430 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;
431 } 888 }
432 else
433 reqe = reqs = req;
434
435 pthread_cond_signal (&reqwait);
436 pthread_mutex_unlock (&reqlock);
437
438 if (nreqs > max_outstanding)
439 for (;;)
440 {
441 poll_cb ();
442
443 if (nreqs <= max_outstanding)
444 break;
445
446 poll_wait ();
447 }
448} 889}
449 890
450static void end_thread (void) 891XS(boot_IO__AIO) ecb_cold;
451{
452 aio_req req;
453 Newz (0, req, 1, aio_cb);
454 req->type = REQ_QUIT;
455 892
456 req_send (req); 893MODULE = IO::AIO PACKAGE = IO::AIO
457}
458 894
459static void min_parallel (int nthreads) 895PROTOTYPES: ENABLE
460{
461 if (wanted < nthreads)
462 wanted = nthreads;
463}
464 896
465static void max_parallel (int nthreads) 897BOOT:
466{ 898{
467 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 },
468 906
469 if (wanted > nthreads) 907 /* you have to re-run ./gendef0 after adding/removing any constants here */
470 wanted = nthreads; 908 /* the first block can be undef if missing */
909 const_iv (ENOSYS)
910 const_iv (EXDEV)
911 const_iv (EBADR)
471 912
472 while (cur > wanted) 913 /* for lseek */
473 { 914 const_iv (SEEK_DATA)
474 end_thread (); 915 const_iv (SEEK_HOLE)
475 cur--;
476 }
477 916
478 while (started > wanted) 917 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
479 { 918 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
480 poll_wait (); 919 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
481 poll_cb (); 920 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
482 } 921 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
483} 922 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
484 923
485static void create_pipe () 924 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
486{ 925 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
487 if (pipe (respipe)) 926 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
488 croak ("unable to initialize result pipe"); 927 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
928 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
489 929
490 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 930 /* the second block will be 0 when missing */
491 croak ("cannot set result pipe to nonblocking mode"); 931 const_iv (O_RDONLY)
932 const_iv (O_WRONLY)
933 const_iv (O_RDWR)
934 const_iv (O_CREAT)
935 const_iv (O_TRUNC)
936 const_iv (O_EXCL)
937 const_iv (O_APPEND)
492 938
493 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 939 const_iv (O_ASYNC)
494 croak ("cannot set result pipe to nonblocking mode"); 940 const_iv (O_DIRECT)
495} 941 const_iv (O_NOATIME)
496 942
497/*****************************************************************************/ 943 const_iv (O_CLOEXEC)
498/* work around various missing functions */ 944 const_iv (O_NOCTTY)
945 const_iv (O_NOFOLLOW)
946 const_iv (O_NONBLOCK)
947 const_iv (O_EXEC)
948 const_iv (O_SEARCH)
949 const_iv (O_DIRECTORY)
950 const_iv (O_DSYNC)
951 const_iv (O_RSYNC)
952 const_iv (O_SYNC)
953 const_iv (O_PATH)
954 const_iv (O_TMPFILE)
955 const_iv (O_TTY_INIT)
499 956
500#if !HAVE_PREADWRITE 957 const_iv (S_IFIFO)
501# define pread aio_pread 958 const_iv (S_IFCHR)
502# define pwrite aio_pwrite 959 const_iv (S_IFBLK)
960 const_iv (S_IFLNK)
961 const_iv (S_IFREG)
962 const_iv (S_IFDIR)
963 const_iv (S_IFWHT)
964 const_iv (S_IFSOCK)
965 const_iv (S_IFMT)
503 966
504/* 967 const_iv (ST_RDONLY)
505 * make our pread/pwrite safe against themselves, but not against 968 const_iv (ST_NOSUID)
506 * normal read/write by using a mutex. slows down execution a lot, 969 const_iv (ST_NODEV)
507 * but that's your problem, not mine. 970 const_iv (ST_NOEXEC)
508 */ 971 const_iv (ST_SYNCHRONOUS)
509static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; 972 const_iv (ST_MANDLOCK)
973 const_iv (ST_WRITE)
974 const_iv (ST_APPEND)
975 const_iv (ST_IMMUTABLE)
976 const_iv (ST_NOATIME)
977 const_iv (ST_NODIRATIME)
978 const_iv (ST_RELATIME)
510 979
511static ssize_t pread (int fd, void *buf, size_t count, off_t offset) 980 const_iv (PROT_NONE)
512{ 981 const_iv (PROT_EXEC)
513 ssize_t res; 982 const_iv (PROT_READ)
514 off_t ooffset; 983 const_iv (PROT_WRITE)
515 984
516 pthread_mutex_lock (&preadwritelock); 985 const_iv (MAP_PRIVATE)
517 ooffset = lseek (fd, 0, SEEK_CUR); 986 const_iv (MAP_SHARED)
518 lseek (fd, offset, SEEK_SET); 987 const_iv (MAP_FIXED)
519 res = read (fd, buf, count); 988 const_iv (MAP_ANONYMOUS)
520 lseek (fd, ooffset, SEEK_SET);
521 pthread_mutex_unlock (&preadwritelock);
522 989
523 return res; 990 /* linuxish */
524} 991 const_iv (MAP_LOCKED)
992 const_iv (MAP_NORESERVE)
993 const_iv (MAP_POPULATE)
994 const_iv (MAP_NONBLOCK)
995 const_iv (MAP_GROWSDOWN)
996 const_iv (MAP_32BIT)
997 const_iv (MAP_HUGETLB)
998 const_iv (MAP_STACK)
525 999
526static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1000 const_iv (F_DUPFD_CLOEXEC)
527{
528 ssize_t res;
529 off_t ooffset;
530 1001
531 pthread_mutex_lock (&preadwritelock); 1002 const_iv (F_OFD_GETLK)
532 ooffset = lseek (fd, 0, SEEK_CUR); 1003 const_iv (F_OFD_SETLK)
533 lseek (fd, offset, SEEK_SET); 1004 const_iv (F_OFD_GETLKW)
534 res = write (fd, buf, count);
535 lseek (fd, offset, SEEK_SET);
536 pthread_mutex_unlock (&preadwritelock);
537 1005
538 return res; 1006 const_iv (FIFREEZE)
539} 1007 const_iv (FITHAW)
540#endif 1008 const_iv (FITRIM)
1009 const_iv (FICLONE)
1010 const_iv (FICLONERANGE)
1011 const_iv (FIDEDUPERANGE)
541 1012
542#if !HAVE_FDATASYNC 1013 const_iv (FS_IOC_GETFLAGS)
543# define fdatasync fsync 1014 const_iv (FS_IOC_SETFLAGS)
544#endif 1015 const_iv (FS_IOC_GETVERSION)
1016 const_iv (FS_IOC_SETVERSION)
1017 const_iv (FS_IOC_FIEMAP)
1018 const_iv (FS_IOC_FSGETXATTR)
1019 const_iv (FS_IOC_FSSETXATTR)
1020 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1021 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1022 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
545 1023
546#if !HAVE_READAHEAD 1024 const_iv (FS_KEY_DESCRIPTOR_SIZE)
547# define readahead aio_readahead
548 1025
549static ssize_t readahead (int fd, off_t offset, size_t count) 1026 const_iv (FS_SECRM_FL)
550{ 1027 const_iv (FS_UNRM_FL)
551 char readahead_buf[4096]; 1028 const_iv (FS_COMPR_FL)
1029 const_iv (FS_SYNC_FL)
1030 const_iv (FS_IMMUTABLE_FL)
1031 const_iv (FS_APPEND_FL)
1032 const_iv (FS_NODUMP_FL)
1033 const_iv (FS_NOATIME_FL)
1034 const_iv (FS_DIRTY_FL)
1035 const_iv (FS_COMPRBLK_FL)
1036 const_iv (FS_NOCOMP_FL)
1037 const_iv (FS_ENCRYPT_FL)
1038 const_iv (FS_BTREE_FL)
1039 const_iv (FS_INDEX_FL)
1040 const_iv (FS_JOURNAL_DATA_FL)
1041 const_iv (FS_NOTAIL_FL)
1042 const_iv (FS_DIRSYNC_FL)
1043 const_iv (FS_TOPDIR_FL)
1044 const_iv (FS_FL_USER_MODIFIABLE)
552 1045
553 while (count > 0) 1046 const_iv (FS_XFLAG_REALTIME)
554 { 1047 const_iv (FS_XFLAG_PREALLOC)
555 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); 1048 const_iv (FS_XFLAG_IMMUTABLE)
1049 const_iv (FS_XFLAG_APPEND)
1050 const_iv (FS_XFLAG_SYNC)
1051 const_iv (FS_XFLAG_NOATIME)
1052 const_iv (FS_XFLAG_NODUMP)
1053 const_iv (FS_XFLAG_RTINHERIT)
1054 const_iv (FS_XFLAG_PROJINHERIT)
1055 const_iv (FS_XFLAG_NOSYMLINKS)
1056 const_iv (FS_XFLAG_EXTSIZE)
1057 const_iv (FS_XFLAG_EXTSZINHERIT)
1058 const_iv (FS_XFLAG_NODEFRAG)
1059 const_iv (FS_XFLAG_FILESTREAM)
1060 const_iv (FS_XFLAG_DAX)
1061 const_iv (FS_XFLAG_HASATTR)
556 1062
557 pread (fd, readahead_buf, len, offset); 1063 const_iv (FIEMAP_FLAG_SYNC)
558 offset += len; 1064 const_iv (FIEMAP_FLAG_XATTR)
559 count -= len; 1065 const_iv (FIEMAP_FLAGS_COMPAT)
560 } 1066 const_iv (FIEMAP_EXTENT_LAST)
1067 const_iv (FIEMAP_EXTENT_UNKNOWN)
1068 const_iv (FIEMAP_EXTENT_DELALLOC)
1069 const_iv (FIEMAP_EXTENT_ENCODED)
1070 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1071 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1072 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1073 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1074 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1075 const_iv (FIEMAP_EXTENT_MERGED)
1076 const_iv (FIEMAP_EXTENT_SHARED)
561 1077
562 errno = 0; 1078 const_iv (SPLICE_F_MOVE)
563} 1079 const_iv (SPLICE_F_NONBLOCK)
564#endif 1080 const_iv (SPLICE_F_MORE)
1081 const_iv (SPLICE_F_GIFT)
565 1082
566#if !HAVE_READDIR_R 1083 /* these are libeio constants, and are independent of gendef0 */
567# define readdir_r aio_readdir_r 1084 const_eio (SEEK_SET)
1085 const_eio (SEEK_CUR)
1086 const_eio (SEEK_END)
568 1087
569static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; 1088 const_eio (MCL_FUTURE)
570 1089 const_eio (MCL_CURRENT)
571static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
572{
573 struct dirent *e;
574 int errorno;
575 1090
576 pthread_mutex_lock (&readdirlock); 1091 const_eio (MS_ASYNC)
1092 const_eio (MS_INVALIDATE)
1093 const_eio (MS_SYNC)
577 1094
578 e = readdir (dirp); 1095 const_eio (MT_MODIFY)
579 errorno = errno;
580 1096
581 if (e) 1097 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
582 { 1098 const_eio (SYNC_FILE_RANGE_WRITE)
583 *res = ent; 1099 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
584 strcpy (ent->d_name, e->d_name);
585 }
586 else
587 *res = 0;
588 1100
589 pthread_mutex_unlock (&readdirlock); 1101 const_eio (FALLOC_FL_KEEP_SIZE)
1102 const_eio (FALLOC_FL_PUNCH_HOLE)
1103 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1104 const_eio (FALLOC_FL_ZERO_RANGE)
1105 const_eio (FALLOC_FL_INSERT_RANGE)
1106 const_eio (FALLOC_FL_UNSHARE_RANGE)
590 1107
591 errno = errorno; 1108 const_eio (RENAME_NOREPLACE)
592 return e ? 0 : -1; 1109 const_eio (RENAME_EXCHANGE)
593} 1110 const_eio (RENAME_WHITEOUT)
594#endif
595 1111
596/* sendfile always needs emulation */ 1112 const_eio (READDIR_DENTS)
597static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) 1113 const_eio (READDIR_DIRS_FIRST)
598{ 1114 const_eio (READDIR_STAT_ORDER)
599 ssize_t res; 1115 const_eio (READDIR_FOUND_UNKNOWN)
600 1116
601 if (!count) 1117 const_eio (DT_UNKNOWN)
602 return 0; 1118 const_eio (DT_FIFO)
603 1119 const_eio (DT_CHR)
604#if HAVE_SENDFILE 1120 const_eio (DT_DIR)
605# if __linux 1121 const_eio (DT_BLK)
606 res = sendfile (ofd, ifd, &offset, count); 1122 const_eio (DT_REG)
607 1123 const_eio (DT_LNK)
608# elif __freebsd 1124 const_eio (DT_SOCK)
609 /* 1125 const_eio (DT_WHT)
610 * Of course, the freebsd sendfile is a dire hack with no thoughts
611 * wasted on making it similar to other I/O functions.
612 */
613 {
614 off_t sbytes;
615 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
616
617 if (res < 0 && sbytes)
618 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
619 res = sbytes;
620 } 1126 };
621 1127
622# elif __hpux 1128 aio_stash = gv_stashpv ("IO::AIO" , 1);
623 res = sendfile (ofd, ifd, offset, count, 0, 0); 1129 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1130 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1131 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
624 1132
625# elif __solaris 1133 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
626 { 1134 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
627 struct sendfilevec vec;
628 size_t sbytes;
629 1135
630 vec.sfv_fd = ifd; 1136 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
631 vec.sfv_flag = 0;
632 vec.sfv_off = offset;
633 vec.sfv_len = count;
634 1137
635 res = sendfilev (ofd, &vec, 1, &sbytes); 1138 reinit ();
1139}
636 1140
637 if (res < 0 && sbytes) 1141void
1142reinit ()
1143 PROTOTYPE:
1144
1145void
1146max_poll_reqs (unsigned int nreqs)
1147 PROTOTYPE: $
1148 CODE:
1149 eio_set_max_poll_reqs (nreqs);
1150
1151void
1152max_poll_time (double nseconds)
1153 PROTOTYPE: $
1154 CODE:
1155 eio_set_max_poll_time (nseconds);
1156
1157void
1158min_parallel (unsigned int nthreads)
1159 PROTOTYPE: $
1160 CODE:
1161 eio_set_min_parallel (nthreads);
1162
1163void
1164max_parallel (unsigned int nthreads)
1165 PROTOTYPE: $
1166 CODE:
1167 eio_set_max_parallel (nthreads);
1168
1169void
1170max_idle (unsigned int nthreads)
1171 PROTOTYPE: $
1172 CODE:
1173 eio_set_max_idle (nthreads);
1174
1175void
1176idle_timeout (unsigned int seconds)
1177 PROTOTYPE: $
1178 CODE:
1179 eio_set_idle_timeout (seconds);
1180
1181void
1182max_outstanding (unsigned int maxreqs)
1183 PROTOTYPE: $
1184 CODE:
1185 max_outstanding = maxreqs;
1186
1187void
1188aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1189 PPCODE:
1190{
1191 dREQ;
1192
1193 req->type = EIO_WD_OPEN;
1194 req_set_path1 (req, pathname);
1195
1196 REQ_SEND;
1197}
1198
1199void
1200aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1201 PPCODE:
1202{
1203 dREQ;
1204
1205 req->type = EIO_OPEN;
1206 req_set_path1 (req, pathname);
1207 req->int1 = flags;
1208 req->int2 = mode;
1209
1210 REQ_SEND;
1211}
1212
1213void
1214aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1215 ALIAS:
1216 aio_fsync = EIO_FSYNC
1217 aio_fdatasync = EIO_FDATASYNC
1218 aio_syncfs = EIO_SYNCFS
1219 PPCODE:
1220{
1221 int fd = s_fileno_croak (fh, 0);
1222 dREQ;
1223
1224 req->type = ix;
1225 req->sv1 = newSVsv (fh);
1226 req->int1 = fd;
1227
1228 REQ_SEND;
1229}
1230
1231void
1232aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1233 PPCODE:
1234{
1235 int fd = s_fileno_croak (fh, 0);
1236 dREQ;
1237
1238 req->type = EIO_SYNC_FILE_RANGE;
1239 req->sv1 = newSVsv (fh);
1240 req->int1 = fd;
1241 req->offs = offset;
638 res = sbytes; 1242 req->size = nbytes;
639 } 1243 req->int2 = flags;
640 1244
641# endif 1245 REQ_SEND;
1246}
1247
1248void
1249aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1250 PPCODE:
1251{
1252 int fd = s_fileno_croak (fh, 0);
1253 dREQ;
1254
1255 req->type = EIO_FALLOCATE;
1256 req->sv1 = newSVsv (fh);
1257 req->int1 = fd;
1258 req->int2 = mode;
1259 req->offs = offset;
1260 req->size = len;
1261
1262 REQ_SEND;
1263}
1264
1265void
1266aio_close (SV *fh, SV *callback = &PL_sv_undef)
1267 PPCODE:
1268{
1269 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1270 int fd = s_fileno_croak (fh, 0);
1271 dREQ;
1272
1273 if (expect_false (close_fd < 0))
1274 {
1275 int pipefd [2];
1276
1277 if (
1278#ifdef _WIN32
1279 _pipe (pipefd, 1, _O_BINARY) < 0
642#else 1280#else
643 res = -1; 1281 pipe (pipefd) < 0
644 errno = ENOSYS; 1282 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
645#endif 1283#endif
646 1284 || close (pipefd [1]) < 0
647 if (res < 0
648 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
649#if __solaris
650 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
651#endif
652 )
653 )
654 {
655 /* emulate sendfile. this is a major pain in the ass */
656 char buf[4096];
657 res = 0;
658
659 while (count)
660 {
661 ssize_t cnt;
662
663 cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
664
665 if (cnt <= 0)
666 { 1285 )
667 if (cnt && !res) res = -1; 1286 abort (); /*D*/
668 break;
669 }
670 1287
671 cnt = write (ofd, buf, cnt); 1288 close_fd = pipefd [0];
672
673 if (cnt <= 0)
674 {
675 if (cnt && !res) res = -1;
676 break;
677 }
678
679 offset += cnt;
680 res += cnt;
681 count -= cnt;
682 }
683 }
684
685 return res;
686}
687
688/* read a full directory */
689static int scandir_ (const char *path, void **namesp)
690{
691 DIR *dirp = opendir (path);
692 union
693 {
694 struct dirent d;
695 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
696 } u;
697 struct dirent *entp;
698 char *name, *names;
699 int memlen = 4096;
700 int memofs = 0;
701 int res = 0;
702 int errorno;
703
704 if (!dirp)
705 return -1;
706
707 names = malloc (memlen);
708
709 for (;;)
710 {
711 errno = 0, readdir_r (dirp, &u.d, &entp);
712
713 if (!entp)
714 break;
715
716 name = entp->d_name;
717
718 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
719 {
720 int len = strlen (name) + 1;
721
722 res++;
723
724 while (memofs + len > memlen)
725 {
726 memlen *= 2;
727 names = realloc (names, memlen);
728 if (!names)
729 break;
730 }
731
732 memcpy (names + memofs, name, len);
733 memofs += len;
734 }
735 }
736
737 errorno = errno;
738 closedir (dirp);
739
740 if (errorno)
741 {
742 free (names);
743 errno = errorno;
744 res = -1;
745 }
746
747 *namesp = (void *)names;
748 return res;
749}
750
751/*****************************************************************************/
752
753static void *aio_proc (void *thr_arg)
754{
755 aio_req req;
756 int type;
757
758 do
759 {
760 pthread_mutex_lock (&reqlock);
761
762 for (;;)
763 {
764 req = reqs;
765
766 if (reqs)
767 {
768 reqs = reqs->next;
769 if (!reqs) reqe = 0;
770 }
771
772 if (req)
773 break;
774
775 pthread_cond_wait (&reqwait, &reqlock);
776 }
777
778 pthread_mutex_unlock (&reqlock);
779
780 errno = 0; /* strictly unnecessary */
781
782 if (!req->cancelled)
783 switch (req->type)
784 {
785 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
786 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
787
788 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
789 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
790
791 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
792 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
793 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
794
795 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
796 case REQ_CLOSE: req->result = close (req->fd); break;
797 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
798 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
799 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
800 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
801 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
802
803 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
804 case REQ_FSYNC: req->result = fsync (req->fd); break;
805 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
806
807 case REQ_SLEEP:
808 {
809 struct timeval tv;
810
811 tv.tv_sec = req->fd;
812 tv.tv_usec = req->fd2;
813
814 req->result = select (0, 0, 0, 0, &tv);
815 }
816
817 case REQ_QUIT:
818 break;
819
820 default:
821 req->result = ENOSYS;
822 break;
823 } 1289 }
824 1290
825 req->errorno = errno; 1291 req->type = EIO_DUP2;
826 1292 req->int1 = close_fd;
827 pthread_mutex_lock (&reslock); 1293 req->sv2 = newSVsv (fh);
828
829 req->next = 0; 1294 req->int2 = fd;
830 1295
831 if (rese) 1296 REQ_SEND;
832 {
833 rese->next = req;
834 rese = req;
835 }
836 else
837 {
838 rese = ress = req;
839
840 /* write a dummy byte to the pipe so fh becomes ready */
841 write (respipe [1], &respipe, 1);
842 }
843
844 pthread_mutex_unlock (&reslock);
845 }
846 while (type != REQ_QUIT);
847
848 return 0;
849} 1297}
850 1298
851/*****************************************************************************/
852
853static void atfork_prepare (void)
854{
855 pthread_mutex_lock (&reqlock);
856 pthread_mutex_lock (&reslock);
857#if !HAVE_PREADWRITE
858 pthread_mutex_lock (&preadwritelock);
859#endif
860#if !HAVE_READDIR_R
861 pthread_mutex_lock (&readdirlock);
862#endif
863}
864
865static void atfork_parent (void)
866{
867#if !HAVE_READDIR_R
868 pthread_mutex_unlock (&readdirlock);
869#endif
870#if !HAVE_PREADWRITE
871 pthread_mutex_unlock (&preadwritelock);
872#endif
873 pthread_mutex_unlock (&reslock);
874 pthread_mutex_unlock (&reqlock);
875}
876
877static void atfork_child (void)
878{
879 aio_req prv;
880
881 started = 0;
882
883 while (reqs)
884 {
885 prv = reqs;
886 reqs = prv->next;
887 req_free (prv);
888 }
889
890 reqs = reqe = 0;
891
892 while (ress)
893 {
894 prv = ress;
895 ress = prv->next;
896 req_free (prv);
897 }
898
899 ress = rese = 0;
900
901 close (respipe [0]);
902 close (respipe [1]);
903 create_pipe ();
904
905 atfork_parent ();
906}
907
908#define dREQ \
909 aio_req req; \
910 \
911 if (SvOK (callback) && !SvROK (callback)) \
912 croak ("callback must be undef or of reference type"); \
913 \
914 Newz (0, req, 1, aio_cb); \
915 if (!req) \
916 croak ("out of memory during aio_req allocation"); \
917 \
918 req->callback = newSVsv (callback)
919
920#define REQ_SEND \
921 req_send (req); \
922 \
923 if (GIMME_V != G_VOID) \
924 XPUSHs (req_sv (req, AIO_REQ_KLASS));
925
926MODULE = IO::AIO PACKAGE = IO::AIO
927
928PROTOTYPES: ENABLE
929
930BOOT:
931{
932 HV *stash = gv_stashpv ("IO::AIO", 1);
933 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
934 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
935 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
936
937 create_pipe ();
938 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
939}
940
941void 1299void
942min_parallel (nthreads) 1300aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
943 int nthreads
944 PROTOTYPE: $
945
946void
947max_parallel (nthreads)
948 int nthreads
949 PROTOTYPE: $
950
951int
952max_outstanding (nreqs)
953 int nreqs
954 PROTOTYPE: $
955 CODE: 1301 PPCODE:
956 RETVAL = max_outstanding;
957 max_outstanding = nreqs;
958
959void
960aio_open (pathname,flags,mode,callback=&PL_sv_undef)
961 SV * pathname
962 int flags
963 int mode
964 SV * callback
965 PROTOTYPE: $$$;$
966 PPCODE:
967{ 1302{
1303 int fd = s_fileno_croak (fh, 0);
968 dREQ; 1304 dREQ;
969 1305
970 req->type = REQ_OPEN; 1306 req->type = EIO_SEEK;
971 req->data = newSVsv (pathname); 1307 req->sv1 = newSVsv (fh);
972 req->dataptr = SvPVbyte_nolen (req->data); 1308 req->int1 = fd;
973 req->fd = flags; 1309 req->offs = SvVAL64 (offset);
974 req->mode = mode; 1310 req->int2 = whence;
975 1311
976 REQ_SEND; 1312 REQ_SEND;
977} 1313}
978 1314
979void 1315void
980aio_close (fh,callback=&PL_sv_undef) 1316aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
981 SV * fh
982 SV * callback
983 PROTOTYPE: $;$
984 ALIAS: 1317 ALIAS:
985 aio_close = REQ_CLOSE
986 aio_fsync = REQ_FSYNC
987 aio_fdatasync = REQ_FDATASYNC
988 PPCODE:
989{
990 dREQ;
991
992 req->type = ix;
993 req->fh = newSVsv (fh);
994 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
995
996 REQ_SEND (req);
997}
998
999void
1000aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1001 SV * fh
1002 UV offset
1003 UV length
1004 SV * data
1005 UV dataoffset
1006 SV * callback
1007 ALIAS:
1008 aio_read = REQ_READ 1318 aio_read = EIO_READ
1009 aio_write = REQ_WRITE 1319 aio_write = EIO_WRITE
1010 PROTOTYPE: $$$$$;$
1011 PPCODE: 1320 PPCODE:
1012{ 1321{
1013 aio_req req;
1014 STRLEN svlen; 1322 STRLEN svlen;
1323 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1015 char *svptr = SvPVbyte (data, svlen); 1324 char *svptr = SvPVbyte (data, svlen);
1016 1325 UV len = SvUV (length);
1017 SvUPGRADE (data, SVt_PV);
1018 SvPOK_on (data);
1019 1326
1020 if (dataoffset < 0) 1327 if (dataoffset < 0)
1021 dataoffset += svlen; 1328 dataoffset += svlen;
1022 1329
1023 if (dataoffset < 0 || dataoffset > svlen) 1330 if (dataoffset < 0 || dataoffset > svlen)
1024 croak ("data offset outside of string"); 1331 croak ("dataoffset outside of data scalar");
1025 1332
1026 if (ix == REQ_WRITE) 1333 if (ix == EIO_WRITE)
1027 { 1334 {
1028 /* write: check length and adjust. */ 1335 /* write: check length and adjust. */
1029 if (length < 0 || length + dataoffset > svlen) 1336 if (!SvOK (length) || len + dataoffset > svlen)
1030 length = svlen - dataoffset; 1337 len = svlen - dataoffset;
1031 } 1338 }
1032 else 1339 else
1033 { 1340 {
1034 /* read: grow scalar as necessary */ 1341 /* read: check type and grow scalar as necessary */
1342 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1035 svptr = SvGROW (data, length + dataoffset); 1343 svptr = sv_grow (data, len + dataoffset + 1);
1344 else if (SvCUR (data) < len + dataoffset)
1345 croak ("length + dataoffset outside of scalar, and cannot grow");
1036 } 1346 }
1037
1038 if (length < 0)
1039 croak ("length must not be negative");
1040 1347
1041 { 1348 {
1042 dREQ; 1349 dREQ;
1043 1350
1044 req->type = ix; 1351 req->type = ix;
1045 req->fh = newSVsv (fh); 1352 req->sv1 = newSVsv (fh);
1046 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1353 req->int1 = fd;
1047 : IoOFP (sv_2io (fh))); 1354 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1048 req->offset = offset; 1355 req->size = len;
1049 req->length = length;
1050 req->data = SvREFCNT_inc (data); 1356 req->sv2 = SvREFCNT_inc (data);
1051 req->dataptr = (char *)svptr + dataoffset; 1357 req->ptr2 = (char *)svptr + dataoffset;
1358 req->stroffset = dataoffset;
1052 1359
1053 if (!SvREADONLY (data)) 1360 if (!SvREADONLY (data))
1054 { 1361 {
1055 SvREADONLY_on (data); 1362 SvREADONLY_on (data);
1056 req->data2ptr = (void *)data; 1363 req->flags |= FLAG_SV2_RO_OFF;
1057 } 1364 }
1058 1365
1059 REQ_SEND; 1366 REQ_SEND;
1060 } 1367 }
1061} 1368}
1062 1369
1063void 1370void
1064aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1371aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1065 SV * out_fh 1372 ALIAS:
1066 SV * in_fh 1373 aio_ioctl = EIO_IOCTL
1067 UV in_offset 1374 aio_fcntl = EIO_FCNTL
1068 UV length
1069 SV * callback
1070 PROTOTYPE: $$$$;$
1071 PPCODE: 1375 PPCODE:
1072{ 1376{
1073 dREQ; 1377 int fd = s_fileno_croak (fh, 0);
1378 char *svptr;
1074 1379
1075 req->type = REQ_SENDFILE; 1380 if (SvPOK (arg) || !SvNIOK (arg))
1076 req->fh = newSVsv (out_fh);
1077 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1078 req->fh2 = newSVsv (in_fh);
1079 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1080 req->offset = in_offset;
1081 req->length = length;
1082
1083 REQ_SEND;
1084}
1085
1086void
1087aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1088 SV * fh
1089 UV offset
1090 IV length
1091 SV * callback
1092 PROTOTYPE: $$$;$
1093 PPCODE:
1094{
1095 dREQ;
1096
1097 req->type = REQ_READAHEAD;
1098 req->fh = newSVsv (fh);
1099 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1100 req->offset = offset;
1101 req->length = length;
1102
1103 REQ_SEND;
1104}
1105
1106void
1107aio_stat (fh_or_path,callback=&PL_sv_undef)
1108 SV * fh_or_path
1109 SV * callback
1110 ALIAS:
1111 aio_stat = REQ_STAT
1112 aio_lstat = REQ_LSTAT
1113 PPCODE:
1114{
1115 dREQ;
1116
1117 New (0, req->statdata, 1, Stat_t);
1118 if (!req->statdata)
1119 { 1381 {
1120 req_free (req); 1382 STRLEN svlen;
1121 croak ("out of memory during aio_req->statdata allocation"); 1383 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1122 } 1384#ifdef IOCPARM_LEN
1385 STRLEN need = IOCPARM_LEN (request);
1386#else
1387 STRLEN need = 256;
1388#endif
1123 1389
1124 if (SvPOK (fh_or_path)) 1390 if (svlen < need)
1125 { 1391 svptr = SvGROW (arg, need);
1126 req->type = ix;
1127 req->data = newSVsv (fh_or_path);
1128 req->dataptr = SvPVbyte_nolen (req->data);
1129 } 1392 }
1130 else 1393 else
1394 svptr = (char *)SvIV (arg);
1395
1131 { 1396 {
1397 dREQ;
1398
1132 req->type = REQ_FSTAT; 1399 req->type = ix;
1133 req->fh = newSVsv (fh_or_path); 1400 req->sv1 = newSVsv (fh);
1134 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1401 req->int1 = fd;
1402 req->int2 = (long)request;
1403 req->sv2 = SvREFCNT_inc (arg);
1404 req->ptr2 = svptr;
1405
1406 REQ_SEND;
1135 } 1407 }
1408}
1409
1410void
1411aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1412 ALIAS:
1413 aio_readlink = EIO_READLINK
1414 aio_realpath = EIO_REALPATH
1415 PPCODE:
1416{
1417 dREQ;
1418
1419 req->type = ix;
1420 req_set_path1 (req, pathname);
1136 1421
1137 REQ_SEND; 1422 REQ_SEND;
1138} 1423}
1139 1424
1140void 1425void
1141aio_unlink (pathname,callback=&PL_sv_undef) 1426aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1142 SV * pathname 1427 PPCODE:
1143 SV * callback 1428{
1429 int ifd = s_fileno_croak (in_fh , 0);
1430 int ofd = s_fileno_croak (out_fh, 1);
1431 dREQ;
1432
1433 req->type = EIO_SENDFILE;
1434 req->sv1 = newSVsv (out_fh);
1435 req->int1 = ofd;
1436 req->sv2 = newSVsv (in_fh);
1437 req->int2 = ifd;
1438 req->offs = in_offset;
1439 req->size = length;
1440
1441 REQ_SEND;
1442}
1443
1444void
1445aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1446 PPCODE:
1447{
1448 int fd = s_fileno_croak (fh, 0);
1449 dREQ;
1450
1451 req->type = EIO_READAHEAD;
1452 req->sv1 = newSVsv (fh);
1453 req->int1 = fd;
1454 req->offs = offset;
1455 req->size = length;
1456
1457 REQ_SEND;
1458}
1459
1460void
1461aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1144 ALIAS: 1462 ALIAS:
1463 aio_stat = EIO_STAT
1464 aio_lstat = EIO_LSTAT
1465 aio_statvfs = EIO_STATVFS
1466 PPCODE:
1467{
1468 dREQ;
1469
1470 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1471
1472 REQ_SEND;
1473}
1474
1475UV
1476major (UV dev)
1477 ALIAS:
1478 minor = 1
1479 CODE:
1480 RETVAL = ix ? minor (dev) : major (dev);
1481 OUTPUT:
1482 RETVAL
1483
1484UV
1485makedev (UV maj, UV min)
1486 CODE:
1487 RETVAL = makedev (maj, min);
1488 OUTPUT:
1489 RETVAL
1490
1491void
1492aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1493 PPCODE:
1494{
1495 dREQ;
1496
1497 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1498 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1499 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1500
1501 REQ_SEND;
1502}
1503
1504void
1505aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1506 PPCODE:
1507{
1508 dREQ;
1509
1510 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1511 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1512
1513 REQ_SEND;
1514}
1515
1516void
1517aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1518 PPCODE:
1519{
1520 dREQ;
1521
1522 req->int2 = mode;
1523 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1524
1525 REQ_SEND;
1526}
1527
1528void
1529aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1530 PPCODE:
1531{
1532 dREQ;
1533
1534 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1535 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1536 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1537
1538 REQ_SEND;
1539}
1540
1541void
1542aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1543 PPCODE:
1544{
1545 dREQ;
1546
1547 req->type = EIO_READDIR;
1548 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1549
1550 if (flags & EIO_READDIR_DENTS)
1551 req->int1 |= EIO_READDIR_CUSTOM2;
1552
1553 req_set_path1 (req, pathname);
1554
1555 REQ_SEND;
1556}
1557
1558void
1559aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1560 PPCODE:
1561{
1562 dREQ;
1563
1564 req->type = EIO_MKDIR;
1565 req->int2 = mode;
1566 req_set_path1 (req, pathname);
1567
1568 REQ_SEND;
1569}
1570
1571void
1572aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1573 ALIAS:
1145 aio_unlink = REQ_UNLINK 1574 aio_unlink = EIO_UNLINK
1146 aio_rmdir = REQ_RMDIR 1575 aio_rmdir = EIO_RMDIR
1147 aio_readdir = REQ_READDIR 1576 aio_readdir = EIO_READDIR
1148 PPCODE: 1577 PPCODE:
1149{ 1578{
1150 dREQ; 1579 dREQ;
1151 1580
1152 req->type = ix; 1581 req->type = ix;
1153 req->data = newSVsv (pathname); 1582 req_set_path1 (req, pathname);
1154 req->dataptr = SvPVbyte_nolen (req->data); 1583
1155
1156 REQ_SEND; 1584 REQ_SEND;
1157} 1585}
1158 1586
1159void 1587void
1160aio_link (oldpath,newpath,callback=&PL_sv_undef) 1588aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1161 SV * oldpath
1162 SV * newpath
1163 SV * callback
1164 ALIAS: 1589 ALIAS:
1165 aio_link = REQ_LINK 1590 aio_link = EIO_LINK
1166 aio_symlink = REQ_SYMLINK 1591 aio_symlink = EIO_SYMLINK
1167 aio_rename = REQ_RENAME 1592 aio_rename = EIO_RENAME
1168 PPCODE: 1593 PPCODE:
1169{ 1594{
1595 eio_wd wd2 = 0;
1170 dREQ; 1596 dREQ;
1171 1597
1172 req->type = ix; 1598 req->type = ix;
1173 req->fh = newSVsv (oldpath); 1599 req_set_path1 (req, oldpath);
1174 req->data2ptr = SvPVbyte_nolen (req->fh); 1600 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1175 req->data = newSVsv (newpath); 1601 req->int3 = (long)wd2;
1176 req->dataptr = SvPVbyte_nolen (req->data);
1177 1602
1178 REQ_SEND; 1603 REQ_SEND;
1179} 1604}
1180 1605
1181void 1606void
1182aio_sleep (delay,callback=&PL_sv_undef) 1607aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1183 double delay
1184 SV * callback
1185 PPCODE: 1608 PPCODE:
1186{ 1609{
1610 eio_wd wd2 = 0;
1187 dREQ; 1611 dREQ;
1188 1612
1189 req->type = REQ_SLEEP; 1613 req->type = EIO_RENAME;
1190 req->fd = delay < 0. ? 0 : delay; 1614 req_set_path1 (req, oldpath);
1191 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1615 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1192 1616 req->int2 = flags;
1617 req->int3 = (long)wd2;
1618
1193 REQ_SEND; 1619 REQ_SEND;
1194} 1620}
1195 1621
1196void 1622void
1197aio_group (callback=&PL_sv_undef) 1623aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1198 SV * callback 1624 PPCODE:
1199 PROTOTYPE: ;$ 1625{
1626 dREQ;
1627
1628 req->type = EIO_MKNOD;
1629 req->int2 = (mode_t)mode;
1630 req->offs = dev;
1631 req_set_path1 (req, pathname);
1632
1633 REQ_SEND;
1634}
1635
1636void
1637aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1638 ALIAS:
1639 aio_mtouch = EIO_MTOUCH
1640 aio_msync = EIO_MSYNC
1200 PPCODE: 1641 PPCODE:
1201{ 1642{
1643 STRLEN svlen;
1644 char *svptr = SvPVbyte (data, svlen);
1645 UV len = SvUV (length);
1646
1647 if (flags < 0)
1648 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1649
1650 if (offset < 0)
1651 offset += svlen;
1652
1653 if (offset < 0 || offset > svlen)
1654 croak ("offset outside of scalar");
1655
1656 if (!SvOK (length) || len + offset > svlen)
1657 len = svlen - offset;
1658
1659 {
1660 dREQ;
1661
1662 req->type = ix;
1663 req->sv2 = SvREFCNT_inc (data);
1664 req->ptr2 = (char *)svptr + offset;
1665 req->size = len;
1666 req->int1 = flags;
1667
1668 REQ_SEND;
1669 }
1670}
1671
1672void
1673aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1674 PPCODE:
1675{
1676 STRLEN svlen;
1677 char *svptr = SvPVbyte (data, svlen);
1678 UV len = SvUV (length);
1679
1680 if (offset < 0)
1681 offset += svlen;
1682
1683 if (offset < 0 || offset > svlen)
1684 croak ("offset outside of scalar");
1685
1686 if (!SvOK (length) || len + offset > svlen)
1687 len = svlen - offset;
1688
1689 {
1690 dREQ;
1691
1692 req->type = EIO_MLOCK;
1693 req->sv2 = SvREFCNT_inc (data);
1694 req->ptr2 = (char *)svptr + offset;
1695 req->size = len;
1696
1697 REQ_SEND;
1698 }
1699}
1700
1701void
1702aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1703 PPCODE:
1704{
1705 dREQ;
1706
1707 req->type = EIO_MLOCKALL;
1708 req->int1 = flags;
1709
1710 REQ_SEND;
1711}
1712
1713void
1714aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1715 PPCODE:
1716{
1717 int fd = s_fileno_croak (fh, 0);
1202 dREQ; 1718 dREQ;
1719
1720 req->type = EIO_CUSTOM;
1721 req->sv1 = newSVsv (fh);
1722 req->int1 = fd;
1723
1724 req->feed = fiemap;
1725#if HAVE_FIEMAP
1726 /* keep our fingers crossed that the next two types are 64 bit */
1727 req->offs = start;
1728 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1729 req->int2 = flags;
1730 req->int3 = SvOK (count) ? SvIV (count) : -1;
1731#endif
1732
1733 REQ_SEND;
1734}
1735
1736void
1737aio_busy (double delay, SV *callback = &PL_sv_undef)
1738 PPCODE:
1739{
1740 dREQ;
1741
1742 req->type = EIO_BUSY;
1743 req->nv1 = delay < 0. ? 0. : delay;
1744
1745 REQ_SEND;
1746}
1747
1748void
1749aio_group (SV *callback = &PL_sv_undef)
1750 PPCODE:
1751{
1752 dREQ;
1753
1203 req->type = REQ_GROUP; 1754 req->type = EIO_GROUP;
1755
1756 PUTBACK;
1204 req_send (req); 1757 req_submit (req);
1758 SPAGAIN;
1759
1205 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1760 XPUSHs (req_sv (req, aio_grp_stash));
1206} 1761}
1762
1763void
1764aio_nop (SV *callback = &PL_sv_undef)
1765 ALIAS:
1766 aio_nop = EIO_NOP
1767 aio_sync = EIO_SYNC
1768 PPCODE:
1769{
1770 dREQ;
1771
1772 req->type = ix;
1773
1774 REQ_SEND;
1775}
1776
1777int
1778aioreq_pri (int pri = NO_INIT)
1779 CODE:
1780 RETVAL = next_pri;
1781 if (items > 0)
1782 {
1783 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1784 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1785 next_pri = pri;
1786 }
1787 OUTPUT:
1788 RETVAL
1789
1790void
1791aioreq_nice (int nice = 0)
1792 CODE:
1793 nice = next_pri - nice;
1794 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1795 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1796 next_pri = nice;
1207 1797
1208void 1798void
1209flush () 1799flush ()
1210 PROTOTYPE:
1211 CODE: 1800 CODE:
1212 while (nreqs) 1801 while (eio_nreqs ())
1213 { 1802 {
1214 poll_wait (); 1803 poll_wait ();
1215 poll_cb (); 1804 poll_cb ();
1216 } 1805 }
1217 1806
1218void 1807int
1219poll() 1808poll ()
1220 PROTOTYPE:
1221 CODE: 1809 CODE:
1222 if (nreqs)
1223 {
1224 poll_wait (); 1810 poll_wait ();
1225 poll_cb (); 1811 RETVAL = poll_cb ();
1226 }
1227
1228int
1229poll_fileno()
1230 PROTOTYPE:
1231 CODE:
1232 RETVAL = respipe [0];
1233 OUTPUT: 1812 OUTPUT:
1234 RETVAL 1813 RETVAL
1235 1814
1236int 1815int
1816poll_fileno ()
1817 CODE:
1818 RETVAL = s_epipe_fd (&respipe);
1819 OUTPUT:
1820 RETVAL
1821
1822int
1237poll_cb(...) 1823poll_cb (...)
1238 PROTOTYPE: 1824 PROTOTYPE:
1239 CODE: 1825 CODE:
1240 RETVAL = poll_cb (); 1826 RETVAL = poll_cb ();
1241 OUTPUT: 1827 OUTPUT:
1242 RETVAL 1828 RETVAL
1243 1829
1244void 1830void
1245poll_wait() 1831poll_wait ()
1246 PROTOTYPE:
1247 CODE: 1832 CODE:
1248 if (nreqs)
1249 poll_wait (); 1833 poll_wait ();
1250 1834
1251int 1835int
1252nreqs() 1836nreqs ()
1253 PROTOTYPE:
1254 CODE: 1837 CODE:
1255 RETVAL = nreqs; 1838 RETVAL = eio_nreqs ();
1256 OUTPUT: 1839 OUTPUT:
1257 RETVAL 1840 RETVAL
1258 1841
1842int
1843nready ()
1844 CODE:
1845 RETVAL = eio_nready ();
1846 OUTPUT:
1847 RETVAL
1848
1849int
1850npending ()
1851 CODE:
1852 RETVAL = eio_npending ();
1853 OUTPUT:
1854 RETVAL
1855
1856int
1857nthreads ()
1858 CODE:
1859 RETVAL = eio_nthreads ();
1860 OUTPUT:
1861 RETVAL
1862
1863int
1864fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1865 CODE:
1866 RETVAL = posix_fadvise (fh, offset, length, advice);
1867 OUTPUT:
1868 RETVAL
1869
1870IV
1871sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1872 CODE:
1873 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1874 OUTPUT:
1875 RETVAL
1876
1877void
1878mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1879 PPCODE:
1880 sv_unmagic (scalar, MMAP_MAGIC);
1881{
1882 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1883 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1884 if (addr == (void *)-1)
1885 XSRETURN_NO;
1886
1887 sv_force_normal (scalar);
1888
1889 /* we store the length in mg_obj, as namlen is I32 :/ */
1890 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1891 ->mg_obj = (SV *)length;
1892
1893 SvUPGRADE (scalar, SVt_PV); /* nop... */
1894
1895 if (!(prot & PROT_WRITE))
1896 SvREADONLY_on (scalar);
1897
1898 if (SvLEN (scalar))
1899 Safefree (SvPVX (scalar));
1900
1901 SvPVX (scalar) = (char *)addr;
1902 SvCUR_set (scalar, length);
1903 SvLEN_set (scalar, 0);
1904 SvPOK_only (scalar);
1905
1906 XSRETURN_YES;
1907}
1908
1909void
1910munmap (SV *scalar)
1911 CODE:
1912 sv_unmagic (scalar, MMAP_MAGIC);
1913
1914int
1915madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1916 ALIAS:
1917 mprotect = 1
1918 CODE:
1919{
1920 STRLEN svlen;
1921 void *addr = SvPVbyte (scalar, svlen);
1922 STRLEN len = SvUV (length);
1923
1924 if (offset < 0)
1925 offset += svlen;
1926
1927 if (offset < 0 || offset > svlen)
1928 croak ("offset outside of scalar");
1929
1930 if (!SvOK (length) || len + offset > svlen)
1931 len = svlen - offset;
1932
1933 addr = (void *)(((intptr_t)addr) + offset);
1934 eio_page_align (&addr, &len);
1935
1936 switch (ix)
1937 {
1938 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1939 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1940 }
1941}
1942 OUTPUT:
1943 RETVAL
1944
1945int
1946munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1947 CODE:
1948{
1949 STRLEN svlen;
1950 void *addr = SvPVbyte (scalar, svlen);
1951 size_t len = SvUV (length);
1952
1953 if (offset < 0)
1954 offset += svlen;
1955
1956 if (offset < 0 || offset > svlen)
1957 croak ("offset outside of scalar");
1958
1959 if (!SvOK (length) || len + offset > svlen)
1960 len = svlen - offset;
1961
1962 addr = (void *)(((intptr_t)addr) + offset);
1963 eio_page_align (&addr, &len);
1964#if _POSIX_MEMLOCK_RANGE
1965 RETVAL = munlock (addr, len);
1966#else
1967 RETVAL = EIO_ENOSYS ();
1968#endif
1969}
1970 OUTPUT:
1971 RETVAL
1972
1973int
1974munlockall ()
1975 CODE:
1976#if _POSIX_MEMLOCK
1977 munlockall ();
1978#else
1979 RETVAL = EIO_ENOSYS ();
1980#endif
1981 OUTPUT:
1982 RETVAL
1983
1984int
1985splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
1986 CODE:
1987{
1988#if HAVE_LINUX_SPLICE
1989 loff_t off_in_, off_out_;
1990 RETVAL = splice (
1991 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
1992 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
1993 length, flags
1994 );
1995#else
1996 RETVAL = EIO_ENOSYS ();
1997#endif
1998}
1999 OUTPUT:
2000 RETVAL
2001
2002int
2003tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2004 CODE:
2005#if HAVE_LINUX_SPLICE
2006 RETVAL = tee (rfh, wfh, length, flags);
2007#else
2008 RETVAL = EIO_ENOSYS ();
2009#endif
2010 OUTPUT:
2011 RETVAL
2012
2013int
2014pipesize (aio_rfd rfh, int new_size = -1)
2015 PROTOTYPE: $;$
2016 CODE:
2017#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2018 if (new_size >= 0)
2019 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2020 else
2021 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2022#else
2023 errno = ENOSYS;
2024 RETVAL = -1;
2025#endif
2026 OUTPUT:
2027 RETVAL
2028
2029void
2030pipe2 (int flags = 0)
2031 PROTOTYPE: ;$
2032 PPCODE:
2033{
2034 int fd[2];
2035 int res;
2036
2037 if (flags)
2038#if HAVE_PIPE2
2039 res = pipe2 (fd, flags);
2040#else
2041 res = (errno = ENOSYS, -1);
2042#endif
2043 else
2044 res = pipe (fd);
2045
2046 if (!res)
2047 {
2048 EXTEND (SP, 2);
2049 PUSHs (newmortalFH (fd[0], O_RDONLY));
2050 PUSHs (newmortalFH (fd[1], O_WRONLY));
2051 }
2052}
2053
2054void _on_next_submit (SV *cb)
2055 CODE:
2056 SvREFCNT_dec (on_next_submit);
2057 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2058
1259PROTOTYPES: DISABLE 2059PROTOTYPES: DISABLE
1260 2060
2061MODULE = IO::AIO PACKAGE = IO::AIO::WD
2062
2063BOOT:
2064{
2065 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2066 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2067}
2068
2069void
2070DESTROY (SV *self)
2071 CODE:
2072{
2073 aio_wd wd = SvAIO_WD (self);
2074#if HAVE_AT
2075 {
2076 SV *callback = &PL_sv_undef;
2077 dREQ; /* clobbers next_pri :/ */
2078 next_pri = req->pri; /* restore next_pri */
2079 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2080 req->type = EIO_WD_CLOSE;
2081 req->wd = wd;
2082 REQ_SEND;
2083 }
2084#else
2085 eio_wd_close_sync (wd);
2086#endif
2087}
2088
1261MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2089MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1262 2090
1263void 2091void
1264cancel (aio_req_ornot req) 2092cancel (aio_req_ornot req)
1265 PROTOTYPE:
1266 CODE: 2093 CODE:
1267 req_cancel (req); 2094 eio_cancel (req);
2095
2096void
2097cb (aio_req_ornot req, SV *callback = NO_INIT)
2098 PPCODE:
2099{
2100 if (GIMME_V != G_VOID)
2101 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2102
2103 if (items > 1)
2104 {
2105 SV *cb_cv = get_cb (callback);
2106
2107 SvREFCNT_dec (req->callback);
2108 req->callback = SvREFCNT_inc (cb_cv);
2109 }
2110}
1268 2111
1269MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2112MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1270 2113
1271void 2114void
1272add (aio_req grp, ...) 2115add (aio_req grp, ...)
1273 PPCODE: 2116 PPCODE:
1274{ 2117{
1275 int i; 2118 int i;
1276 2119
1277 if (grp->fd == 2) 2120 if (grp->int1 == 2)
1278 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2121 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1279 2122
1280 for (i = 1; i < items; ++i ) 2123 for (i = 1; i < items; ++i )
1281 { 2124 {
2125 aio_req req;
2126
1282 if (GIMME_V != G_VOID) 2127 if (GIMME_V != G_VOID)
1283 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2128 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1284 2129
1285 aio_req req = SvAIO_REQ (ST (i)); 2130 req = SvAIO_REQ (ST (i));
1286 2131
1287 if (req) 2132 if (req)
1288 { 2133 eio_grp_add (grp, req);
1289 ++grp->length;
1290 req->grp = grp;
1291
1292 req->grp_prev = 0;
1293 req->grp_next = grp->grp_first;
1294
1295 if (grp->grp_first)
1296 grp->grp_first->grp_prev = req;
1297
1298 grp->grp_first = req;
1299 }
1300 } 2134 }
1301} 2135}
1302 2136
1303void 2137void
2138cancel_subs (aio_req_ornot req)
2139 CODE:
2140 req_cancel_subs (req);
2141
2142void
1304result (aio_req grp, ...) 2143result (aio_req grp, ...)
2144 CODE:
2145{
2146 int i;
2147 AV *av;
2148
2149 grp->errorno = errno;
2150
2151 av = newAV ();
2152 av_extend (av, items - 1);
2153
2154 for (i = 1; i < items; ++i )
2155 av_push (av, newSVsv (ST (i)));
2156
2157 SvREFCNT_dec (grp->sv1);
2158 grp->sv1 = (SV *)av;
2159}
2160
2161void
2162errno (aio_req grp, int errorno = errno)
2163 CODE:
2164 grp->errorno = errorno;
2165
2166void
2167limit (aio_req grp, int limit)
1305 CODE: 2168 CODE:
1306{ 2169 eio_grp_limit (grp, limit);
1307 int i;
1308 AV *av = newAV ();
1309 2170
1310 for (i = 1; i < items; ++i )
1311 av_push (av, newSVsv (ST (i)));
1312
1313 SvREFCNT_dec (grp->data);
1314 grp->data = (SV *)av;
1315}
1316
1317void 2171void
1318feeder_limit (aio_req grp, int limit) 2172feed (aio_req grp, SV *callback = &PL_sv_undef)
1319 CODE: 2173 CODE:
1320 grp->fd2 = limit;
1321 aio_grp_feed (grp);
1322
1323void
1324set_feeder (aio_req grp, SV *callback=&PL_sv_undef)
1325 CODE:
1326{ 2174{
1327 SvREFCNT_dec (grp->fh2); 2175 SvREFCNT_dec (grp->sv2);
1328 grp->fh2 = newSVsv (callback); 2176 grp->sv2 = newSVsv (callback);
2177 grp->feed = aio_grp_feed;
1329 2178
1330 if (grp->fd2 <= 0) 2179 if (grp->int2 <= 0)
1331 grp->fd2 = 2; 2180 grp->int2 = 2;
1332 2181
1333 aio_grp_feed (grp); 2182 eio_grp_limit (grp, grp->int2);
1334} 2183}
1335 2184

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