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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.56 by root, Mon Oct 23 14:49:51 2006 UTC vs.
Revision 1.251 by root, Sat Jan 6 01:04:42 2018 UTC

1#define _REENTRANT 1 1#include "libeio/xthread.h"
2
2#include <errno.h> 3#include <errno.h>
3 4
4#include "EXTERN.h" 5#include "EXTERN.h"
5#include "perl.h" 6#include "perl.h"
6#include "XSUB.h" 7#include "XSUB.h"
7 8
8#include "autoconf/config.h" 9#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
109#include "libeio/config.h"
110
111#if HAVE_RLIMITS
112 #include <sys/time.h>
113 #include <sys/resource.h>
114#endif
115
116typedef SV SV8; /* byte-sv, used for argument-checking */
117typedef int aio_rfd; /* read file desriptor */
118typedef int aio_wfd; /* write file descriptor */
119
120static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
121
122#define EIO_REQ_MEMBERS \
123 SV *callback; \
124 SV *sv1, *sv2; \
125 SV *sv3, *sv4; \
126 STRLEN stroffset; \
127 SV *self;
128
129#define EIO_NO_WRAPPERS 1
130
131#include "libeio/eio.h"
132
133static int req_invoke (eio_req *req);
134#define EIO_FINISH(req) req_invoke (req)
135static void req_destroy (eio_req *grp);
136#define EIO_DESTROY(req) req_destroy (req)
137
138#include "libeio/eio.c"
139
140#if !HAVE_POSIX_FADVISE
141# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
142#endif
143
144#if !HAVE_POSIX_MADVISE
145# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
146#endif
147
148#ifndef MAP_ANONYMOUS
149# ifdef MAP_ANON
150# define MAP_ANONYMOUS MAP_ANON
34# else 151# else
35# error sendfile support requested but not available 152# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
36# endif 153# endif
37#endif 154#endif
38 155
39/* used for struct dirent, AIX doesn't provide it */ 156/* defines all sorts of constants to 0 unless they are already defined */
40#ifndef NAME_MAX 157/* also provides const_iv_ and const_niv_ macros for them */
41# define NAME_MAX 4096 158#include "def0.h"
42#endif
43 159
44#if __ia64 160#ifndef makedev
45# define STACKSIZE 65536 161# define makedev(maj,min) (((maj) << 8) | (min))
162#endif
163#ifndef major
164# define major(dev) ((dev) >> 8)
165#endif
166#ifndef minor
167# define minor(dev) ((dev) & 0xff)
168#endif
169
170#if PAGESIZE <= 0
171# define PAGESIZE sysconf (_SC_PAGESIZE)
172#endif
173
174/*****************************************************************************/
175
176#if !_POSIX_MAPPED_FILES
177# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
178# define munmap(addr,length) EIO_ENOSYS ()
179#endif
180
181#if !_POSIX_MEMORY_PROTECTION
182# define mprotect(addr,len,prot) EIO_ENOSYS ()
183#endif
184
185#define FOREIGN_MAGIC PERL_MAGIC_ext
186
187static int ecb_cold
188mmap_free (pTHX_ SV *sv, MAGIC *mg)
189{
190 int old_errno = errno;
191 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
192 errno = old_errno;
193
194 mg->mg_obj = 0; /* just in case */
195
196 SvREADONLY_off (sv);
197
198 if (SvPVX (sv) != mg->mg_ptr)
199 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
200
201 SvCUR_set (sv, 0);
202 SvPVX (sv) = 0;
203 SvOK_off (sv);
204
205 return 0;
206}
207
208static MGVTBL mmap_vtbl = {
209 0, 0, 0, 0, mmap_free
210};
211
212static int ecb_cold
213sysfree_free (pTHX_ SV *sv, MAGIC *mg)
214{
215 free (mg->mg_ptr);
216 mg->mg_obj = 0; /* just in case */
217
218 SvREADONLY_off (sv);
219
220 if (SvPVX (sv) != mg->mg_ptr)
221 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
222
223 SvCUR_set (sv, 0);
224 SvPVX (sv) = 0;
225 SvOK_off (sv);
226
227 return 0;
228}
229
230static MGVTBL sysfree_vtbl = {
231 0, 0, 0, 0, sysfree_free
232};
233
234/*****************************************************************************/
235
236/* helper: set scalar to foreign ptr with custom free */
237static void
238sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
239{
240 sv_force_normal (sv);
241
242 /* we store the length in mg_obj, as namlen is I32 :/ */
243 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
244 ->mg_obj = (SV *)length;
245
246 SvUPGRADE (sv, SVt_PV); /* nop... */
247
248 if (SvLEN (sv))
249 Safefree (SvPVX (sv));
250
251 SvPVX (sv) = (char *)addr;
252 SvCUR_set (sv, length);
253 SvLEN_set (sv, 0);
254 SvPOK_only (sv);
255}
256
257static void
258sv_clear_foreign (SV *sv)
259{
260 /* todo: iterate over magic and only free ours, but of course */
261 /* the perl5porters will call that (correct) behaviour buggy */
262 sv_unmagic (sv, FOREIGN_MAGIC);
263}
264
265/*****************************************************************************/
266
267static void
268fiemap (eio_req *req)
269{
270 req->result = -1;
271
272#if HAVE_FIEMAP
273 /* assume some c99 */
274 struct fiemap *fiemap = 0;
275 size_t end_offset;
276 int count = req->int3;
277
278 req->flags |= EIO_FLAG_PTR1_FREE;
279
280 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
281 /* increase in 3.5kb steps */
282 if (count < 0)
283 count = 8;
284
285 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
286 errno = ENOMEM;
287 if (!fiemap)
288 return;
289
290 req->ptr1 = fiemap;
291
292 fiemap->fm_start = req->offs;
293 fiemap->fm_length = req->size;
294 fiemap->fm_flags = req->int2;
295 fiemap->fm_extent_count = count;
296
297 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
298 return;
299
300 if (req->int3 >= 0 /* not autosizing */
301 || !fiemap->fm_mapped_extents /* no more extents */
302 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
303 goto done;
304
305 /* else we have to loop -
306 * it would be tempting (actually I tried that first) to just query the
307 * number of extents needed, but linux often feels like not returning all
308 * extents, without telling us it left any out. this complicates
309 * this quite a bit.
310 */
311
312 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
313
314 for (;;)
315 {
316 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
317 char scratch[3072];
318 struct fiemap *incmap = (struct fiemap *)scratch;
319
320 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
321 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
322 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
323 incmap->fm_flags = fiemap->fm_flags;
324 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
325
326 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
327 return;
328
329 if (!incmap->fm_mapped_extents)
330 goto done;
331
332 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
333 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
334 errno = ENOMEM;
335 if (!fiemap)
336 return;
337
338 req->ptr1 = fiemap;
339
340 for (count = 0; count < incmap->fm_mapped_extents; ++count)
341 {
342 struct fiemap_extent *e = incmap->fm_extents + count;
343
344 if (e->fe_logical + e->fe_length >= end_offset)
345 goto done;
346
347 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
348
349 if (e->fe_flags & FIEMAP_EXTENT_LAST)
350 goto done;
351
352 }
353 }
354
355done:
356 req->result = 0;
357
46#else 358#else
47# define STACKSIZE 8192 359 errno = ENOSYS;
48#endif 360#endif
361}
362
363/*****************************************************************************/
49 364
50enum { 365enum {
51 REQ_QUIT, 366 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
52 REQ_OPEN, REQ_CLOSE,
53 REQ_READ, REQ_WRITE, REQ_READAHEAD,
54 REQ_SENDFILE,
55 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
56 REQ_FSYNC, REQ_FDATASYNC,
57 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
58 REQ_READDIR,
59 REQ_LINK, REQ_SYMLINK,
60 REQ_GROUP, REQ_NOP,
61 REQ_SLEEP,
62}; 367};
63 368
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; 369typedef eio_req *aio_req;
92typedef aio_cb *aio_req_ornot; 370typedef eio_req *aio_req_ornot;
371typedef eio_wd aio_wd;
93 372
94static int started, wanted; 373static SV *on_next_submit;
95static volatile int nreqs; 374static int next_pri = EIO_PRI_DEFAULT;
96static int max_outstanding = 1<<30; 375static int max_outstanding;
97static int respipe [2];
98 376
99static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 377static s_epipe respipe;
100static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
101static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
102 378
103static volatile aio_req reqs, reqe; /* queue start, queue end */ 379static void req_destroy (aio_req req);
104static volatile aio_req ress, rese; /* queue start, queue end */
105
106static void req_invoke (aio_req req); 380static void req_cancel (aio_req req);
107static void req_free (aio_req req); 381
382static void
383want_poll (void)
384{
385 /* write a dummy byte to the pipe so fh becomes ready */
386 s_epipe_signal (&respipe);
387}
388
389static void
390done_poll (void)
391{
392 /* read any signals sent by the worker threads */
393 s_epipe_drain (&respipe);
394}
108 395
109/* must be called at most once */ 396/* must be called at most once */
110static SV *req_sv (aio_req req, const char *klass) 397static SV *
398req_sv (aio_req req, HV *stash)
111{ 399{
112 if (!req->self) 400 if (!req->self)
113 { 401 {
114 req->self = (SV *)newHV (); 402 req->self = (SV *)newHV ();
115 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 403 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
116 } 404 }
117 405
118 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 406 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
119} 407}
120 408
121static aio_req SvAIO_REQ (SV *sv) 409static SV *
410newSVaio_wd (aio_wd wd)
411{
412 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
413}
414
415static aio_req
416SvAIO_REQ (SV *sv)
122{ 417{
123 MAGIC *mg; 418 MAGIC *mg;
124 419
125 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 420 if (!SvROK (sv)
421 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
422 || (SvSTASH (SvRV (sv)) != aio_grp_stash
423 && SvSTASH (SvRV (sv)) != aio_req_stash
424 && !sv_derived_from (sv, "IO::AIO::REQ")))
126 croak ("object of class " AIO_REQ_KLASS " expected"); 425 croak ("object of class IO::AIO::REQ expected");
127 426
128 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 427 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
129 428
130 return mg ? (aio_req)mg->mg_ptr : 0; 429 return mg ? (aio_req)mg->mg_ptr : 0;
131} 430}
132 431
432static aio_wd
433SvAIO_WD (SV *sv)
434{
435 if (!SvROK (sv)
436 || SvTYPE (SvRV (sv)) != SVt_PVMG
437 || SvSTASH (SvRV (sv)) != aio_wd_stash)
438 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
439
440 return (aio_wd)(long)SvIVX (SvRV (sv));
441}
442
443static SV *
444newmortalFH (int fd, int flags)
445{
446 if (fd < 0)
447 return &PL_sv_undef;
448
449 GV *gv = (GV *)sv_newmortal ();
450 char sym[64];
451 int symlen;
452
453 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
454 gv_init (gv, aio_stash, sym, symlen, 0);
455
456 symlen = snprintf (
457 sym,
458 sizeof (sym),
459 "%s&=%d",
460 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
461 fd
462 );
463
464 return do_open (gv, sym, symlen, 0, 0, 0, 0)
465 ? (SV *)gv : &PL_sv_undef;
466}
467
468static void
133static void aio_grp_feed (aio_req grp) 469aio_grp_feed (aio_req grp)
134{ 470{
135 while (grp->length < grp->fd2) 471 if (grp->sv2 && SvOK (grp->sv2))
136 { 472 {
137 int old_len = grp->length; 473 dSP;
138 474
139 if (grp->fh2 && SvOK (grp->fh2)) 475 ENTER;
476 SAVETMPS;
477 PUSHMARK (SP);
478 XPUSHs (req_sv (grp, aio_grp_stash));
479 PUTBACK;
480 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
481 SPAGAIN;
482 FREETMPS;
483 LEAVE;
484 }
485}
486
487static void
488req_submit (eio_req *req)
489{
490 eio_submit (req);
491
492 if (expect_false (on_next_submit))
493 {
494 dSP;
495 SV *cb = sv_2mortal (on_next_submit);
496
497 on_next_submit = 0;
498
499 PUSHMARK (SP);
500 PUTBACK;
501 call_sv (cb, G_DISCARD | G_EVAL);
502 }
503}
504
505static int
506req_invoke (eio_req *req)
507{
508 if (req->flags & FLAG_SV2_RO_OFF)
509 SvREADONLY_off (req->sv2);
510
511 if (!EIO_CANCELLED (req) && req->callback)
512 {
513 dSP;
514 static SV *sv_result_cache; /* caches the result integer SV */
515 SV *sv_result;
516
517 ENTER;
518 SAVETMPS;
519 PUSHMARK (SP);
520 EXTEND (SP, 1);
521
522 /* do not recreate the result IV from scratch each time */
523 if (expect_true (sv_result_cache))
140 { 524 {
141 dSP; 525 sv_result = sv_result_cache; sv_result_cache = 0;
142 526 SvIV_set (sv_result, req->result);
143 ENTER; 527 SvIOK_only (sv_result);
144 SAVETMPS;
145 PUSHMARK (SP);
146 XPUSHs (req_sv (grp, AIO_GRP_KLASS));
147 PUTBACK;
148 call_sv (grp->fh2, G_VOID | G_EVAL);
149 SPAGAIN;
150 FREETMPS;
151 LEAVE;
152 } 528 }
153 529 else
154 /* stop if no progress has been made */
155 if (old_len == grp->length)
156 { 530 {
157 SvREFCNT_dec (grp->fh2); 531 sv_result = newSViv (req->result);
158 grp->fh2 = 0; 532 SvREADONLY_on (sv_result);
159 break;
160 } 533 }
534
535 switch (req->type)
536 {
537 case EIO_WD_OPEN:
538 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
539 break;
540
541 case EIO_READDIR:
542 {
543 SV *rv = &PL_sv_undef;
544
545 if (req->result >= 0)
546 {
547 int i;
548 char *names = (char *)req->ptr2;
549 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
550 AV *av = newAV ();
551
552 av_extend (av, req->result - 1);
553
554 for (i = 0; i < req->result; ++i)
555 {
556 if (req->int1 & EIO_READDIR_DENTS)
557 {
558 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
559
560 if (req->int1 & EIO_READDIR_CUSTOM2)
561 {
562 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
563 AV *avent = newAV ();
564
565 av_extend (avent, 2);
566
567 if (!sv_type [ent->type])
568 {
569 sv_type [ent->type] = newSViv (ent->type);
570 SvREADONLY_on (sv_type [ent->type]);
571 }
572
573 av_store (avent, 0, namesv);
574 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
575 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
576
577 av_store (av, i, newRV_noinc ((SV *)avent));
578 }
579 else
580 av_store (av, i, namesv);
581
582 ++ent;
583 }
584 else
585 {
586 SV *name = newSVpv (names, 0);
587 av_store (av, i, name);
588 names += SvCUR (name) + 1;
589 }
590 }
591
592 rv = sv_2mortal (newRV_noinc ((SV *)av));
593 }
594
595 PUSHs (rv);
596
597 if (req->int1 & EIO_READDIR_CUSTOM1)
598 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
599 }
600 break;
601
602 case EIO_OPEN:
603 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
604 break;
605
606 case EIO_STATVFS:
607 case EIO_FSTATVFS:
608 {
609 SV *rv = &PL_sv_undef;
610
611#ifndef _WIN32
612 if (req->result >= 0)
613 {
614 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
615 HV *hv = newHV ();
616 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
617 * chooses to make it a struct.
618 */
619 unsigned long fsid = 0;
620 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
621
622 rv = sv_2mortal (newRV_noinc ((SV *)hv));
623
624 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
625 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
626 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
627 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
628 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
629 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
630 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
631 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
632 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
633 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
634 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
635 }
636#endif
637
638 PUSHs (rv);
639 }
640
641 break;
642
643 case EIO_GROUP:
644 req->int1 = 2; /* mark group as finished */
645
646 if (req->sv1)
647 {
648 int i;
649 AV *av = (AV *)req->sv1;
650
651 EXTEND (SP, AvFILL (av) + 1);
652 for (i = 0; i <= AvFILL (av); ++i)
653 PUSHs (*av_fetch (av, i, 0));
654 }
655 break;
656
657 case EIO_NOP:
658 case EIO_BUSY:
659 break;
660
661 case EIO_READLINK:
662 case EIO_REALPATH:
663 if (req->result > 0)
664 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
665 break;
666
667 case EIO_STAT:
668 case EIO_LSTAT:
669 case EIO_FSTAT:
670 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
671
672 if (!(PL_laststatval = req->result))
673 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
674 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
675
676 PUSHs (sv_result);
677 break;
678
679 case EIO_SEEK:
680 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
681 break;
682
683 case EIO_READ:
684 {
685 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
686 *SvEND (req->sv2) = 0;
687 SvPOK_only (req->sv2);
688 SvSETMAGIC (req->sv2);
689 PUSHs (sv_result);
690 }
691 break;
692
693 case EIO_SLURP:
694 {
695 if (req->result >= 0)
696 {
697 /* if length was originally not known, we steal the malloc'ed memory */
698 if (req->flags & EIO_FLAG_PTR2_FREE)
699 {
700 req->flags &= ~EIO_FLAG_PTR2_FREE;
701 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
702 }
703 else
704 SvCUR_set (req->sv2, req->result);
705 }
706
707 PUSHs (sv_result);
708 }
709 break;
710
711 case EIO_CUSTOM:
712 if (req->feed == fiemap)
713 {
714#if HAVE_FIEMAP
715 if (!req->result)
716 {
717 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
718
719 if (fiemap->fm_extent_count)
720 {
721 AV *av = newAV ();
722 int i;
723
724 while (fiemap->fm_mapped_extents)
725 {
726 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
727 AV *ext_av = newAV ();
728
729 av_store (ext_av, 3, newSVuv (extent->fe_flags));
730 av_store (ext_av, 2, newSVval64 (extent->fe_length));
731 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
732 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
733
734 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
735 }
736
737 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
738 }
739 else
740 {
741 SvIV_set (sv_result, fiemap->fm_mapped_extents);
742 PUSHs (sv_result);
743 }
744 }
745#endif
746 }
747 else
748 PUSHs (sv_result);
749 break;
750
751 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
752 if (req->result > 0)
753 SvIV_set (sv_result, 0);
754 /* FALLTHROUGH */
755
756 default:
757 PUSHs (sv_result);
758 break;
759 }
760
761 errno = req->errorno;
762
763 PUTBACK;
764 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
765 SPAGAIN;
766
767 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
768 SvREFCNT_dec (sv_result);
769 else
770 sv_result_cache = sv_result;
771
772 FREETMPS;
773 LEAVE;
774
775 PUTBACK;
161 } 776 }
162}
163 777
164static void aio_grp_dec (aio_req grp) 778 return !!SvTRUE (ERRSV);
165{
166 --grp->length;
167
168 /* call feeder, if applicable */
169 aio_grp_feed (grp);
170
171 /* finish, if done */
172 if (!grp->length && grp->fd)
173 {
174 req_invoke (grp);
175 req_free (grp);
176 }
177} 779}
178 780
179static void poll_wait () 781static void
782req_destroy (aio_req req)
180{ 783{
181 if (nreqs && !ress)
182 {
183 fd_set rfd;
184 FD_ZERO(&rfd);
185 FD_SET(respipe [0], &rfd);
186
187 select (respipe [0] + 1, &rfd, 0, 0, 0);
188 }
189}
190
191static void req_invoke (aio_req req)
192{
193 dSP;
194 int errorno = errno;
195
196 if (req->cancelled || !SvOK (req->callback))
197 return;
198
199 errno = req->errorno;
200
201 ENTER;
202 SAVETMPS;
203 PUSHMARK (SP);
204 EXTEND (SP, 1);
205
206 switch (req->type)
207 {
208 case REQ_READDIR:
209 {
210 SV *rv = &PL_sv_undef;
211
212 if (req->result >= 0)
213 {
214 char *buf = req->data2ptr;
215 AV *av = newAV ();
216
217 while (req->result)
218 {
219 SV *sv = newSVpv (buf, 0);
220
221 av_push (av, sv);
222 buf += SvCUR (sv) + 1;
223 req->result--;
224 }
225
226 rv = sv_2mortal (newRV_noinc ((SV *)av));
227 }
228
229 PUSHs (rv);
230 }
231 break;
232
233 case REQ_OPEN:
234 {
235 /* convert fd to fh */
236 SV *fh;
237
238 PUSHs (sv_2mortal (newSViv (req->result)));
239 PUTBACK;
240 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
241 SPAGAIN;
242
243 fh = SvREFCNT_inc (POPs);
244
245 PUSHMARK (SP);
246 XPUSHs (sv_2mortal (fh));
247 }
248 break;
249
250 case REQ_GROUP:
251 req->fd = 2; /* mark group as finished */
252
253 if (req->data)
254 {
255 int i;
256 AV *av = (AV *)req->data;
257
258 EXTEND (SP, AvFILL (av) + 1);
259 for (i = 0; i <= AvFILL (av); ++i)
260 PUSHs (*av_fetch (av, i, 0));
261 }
262 break;
263
264 case REQ_NOP:
265 case REQ_SLEEP:
266 break;
267
268 default:
269 PUSHs (sv_2mortal (newSViv (req->result)));
270 break;
271 }
272
273
274 PUTBACK;
275 call_sv (req->callback, G_VOID | G_EVAL);
276 SPAGAIN;
277
278 FREETMPS;
279 LEAVE;
280
281 errno = errorno;
282
283 if (SvTRUE (ERRSV))
284 {
285 req_free (req);
286 croak (0);
287 }
288}
289
290static void req_free (aio_req req)
291{
292 if (req->grp)
293 {
294 aio_req grp = req->grp;
295
296 /* unlink request */
297 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
298 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
299
300 if (grp->grp_first == req)
301 grp->grp_first = req->grp_next;
302
303 aio_grp_dec (grp);
304 }
305
306 if (req->self) 784 if (req->self)
307 { 785 {
308 sv_unmagic (req->self, PERL_MAGIC_ext); 786 sv_unmagic (req->self, PERL_MAGIC_ext);
309 SvREFCNT_dec (req->self); 787 SvREFCNT_dec (req->self);
310 } 788 }
311 789
312 SvREFCNT_dec (req->data);
313 SvREFCNT_dec (req->fh); 790 SvREFCNT_dec (req->sv1);
314 SvREFCNT_dec (req->fh2); 791 SvREFCNT_dec (req->sv2);
792 SvREFCNT_dec (req->sv3);
793 SvREFCNT_dec (req->sv4);
315 SvREFCNT_dec (req->callback); 794 SvREFCNT_dec (req->callback);
316 Safefree (req->statdata);
317 795
318 if (req->type == REQ_READDIR && req->result >= 0)
319 free (req->data2ptr);
320
321 Safefree (req); 796 free (req);
322} 797}
323 798
324static void req_cancel (aio_req req) 799static void
800req_cancel_subs (aio_req grp)
325{ 801{
326 req->cancelled = 1;
327
328 if (req->type == REQ_GROUP) 802 if (grp->type != EIO_GROUP)
803 return;
804
805 SvREFCNT_dec (grp->sv2);
806 grp->sv2 = 0;
807
808 eio_grp_cancel (grp);
809}
810
811static void ecb_cold
812create_respipe (void)
813{
814 if (s_epipe_renew (&respipe))
815 croak ("IO::AIO: unable to initialize result pipe");
816}
817
818static void
819poll_wait (void)
820{
821 while (eio_nreqs ())
329 { 822 {
330 aio_req sub; 823 int size;
331 824
332 for (sub = req->grp_first; sub; sub = sub->grp_next) 825 X_LOCK (EIO_POOL->reslock);
333 req_cancel (sub); 826 size = EIO_POOL->res_queue.size;
827 X_UNLOCK (EIO_POOL->reslock);
828
829 if (size)
830 return;
831
832 etp_maybe_start_thread (EIO_POOL);
833
834 s_epipe_wait (&respipe);
334 } 835 }
335} 836}
336 837
337static int poll_cb () 838static int
839poll_cb (void)
338{ 840{
339 dSP;
340 int count = 0;
341 int do_croak = 0;
342 aio_req req;
343
344 for (;;) 841 for (;;)
345 { 842 {
346 pthread_mutex_lock (&reslock); 843 int res = eio_poll ();
347 req = ress;
348 844
349 if (req) 845 if (res > 0)
846 croak (0);
847
848 if (!max_outstanding || max_outstanding > eio_nreqs ())
849 return res;
850
851 poll_wait ();
852 }
853}
854
855static void ecb_cold
856reinit (void)
857{
858 create_respipe ();
859
860 if (eio_init (want_poll, done_poll) < 0)
861 croak ("IO::AIO: unable to initialise eio library");
862}
863
864/*****************************************************************************/
865
866static SV *
867get_cb (SV *cb_sv)
868{
869 SvGETMAGIC (cb_sv);
870 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
871}
872
873static aio_req ecb_noinline
874dreq (SV *callback)
875{
876 SV *cb_cv;
877 aio_req req;
878 int req_pri = next_pri;
879 next_pri = EIO_PRI_DEFAULT;
880
881 cb_cv = get_cb (callback);
882
883 req = calloc (sizeof (*req), 1);
884 if (!req)
885 croak ("out of memory during eio_req allocation");
886
887 req->callback = SvREFCNT_inc (cb_cv);
888 req->pri = req_pri;
889
890 return req;
891}
892
893#define dREQ \
894 aio_req req = dreq (callback); \
895
896#define REQ_SEND \
897 PUTBACK; \
898 req_submit (req); \
899 SPAGAIN; \
900 \
901 if (GIMME_V != G_VOID) \
902 XPUSHs (req_sv (req, aio_req_stash));
903
904ecb_inline void
905req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
906{
907 if (expect_false (SvROK (path)))
908 {
909 SV *rv = SvRV (path);
910 SV *wdob;
911
912 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
350 { 913 {
351 ress = req->next; 914 path = AvARRAY (rv)[1];
915 wdob = AvARRAY (rv)[0];
352 916
353 if (!ress) 917 if (SvOK (wdob))
354 { 918 {
355 /* read any signals sent by the worker threads */ 919 *wd = SvAIO_WD (wdob);
356 char buf [32]; 920 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
357 while (read (respipe [0], buf, 32) == 32)
358 ;
359
360 rese = 0;
361 } 921 }
922 else
923 *wd = EIO_INVALID_WD;
362 } 924 }
363 925 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
364 pthread_mutex_unlock (&reslock);
365
366 if (!req)
367 break;
368
369 --nreqs;
370
371 if (req->type == REQ_QUIT)
372 started--;
373 else if (req->type == REQ_GROUP && req->length)
374 { 926 {
375 req->fd = 1; /* mark request as delayed */ 927 *wd = (aio_wd)(long)SvIVX (rv);
376 continue; 928 *wdsv = SvREFCNT_inc_NN (rv);
929 *ptr = ".";
930 return; /* path set to "." */
377 } 931 }
378 else 932 else
379 { 933 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
380 if (req->type == REQ_READ)
381 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
382
383 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
384 SvREADONLY_off (req->data);
385
386 if (req->statdata)
387 {
388 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
389 PL_laststatval = req->result;
390 PL_statcache = *(req->statdata);
391 }
392
393 req_invoke (req);
394
395 count++;
396 }
397
398 req_free (req);
399 } 934 }
400 935
401 return count; 936 *pathsv = newSVsv (path);
937 *ptr = SvPVbyte_nolen (*pathsv);
402} 938}
403 939
404static void *aio_proc(void *arg); 940static void ecb_noinline
405 941req_set_path1 (aio_req req, SV *path)
406static void start_thread (void)
407{ 942{
408 sigset_t fullsigset, oldsigset; 943 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
409 pthread_t tid;
410 pthread_attr_t attr;
411
412 pthread_attr_init (&attr);
413 pthread_attr_setstacksize (&attr, STACKSIZE);
414 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
415
416 sigfillset (&fullsigset);
417 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
418
419 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
420 started++;
421
422 sigprocmask (SIG_SETMASK, &oldsigset, 0);
423} 944}
424 945
425static void req_send (aio_req req) 946static void ecb_noinline
947req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
426{ 948{
427 while (started < wanted && nreqs >= started) 949 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
428 start_thread ();
429 950
430 ++nreqs; 951 switch (SvTYPE (rv))
431
432 pthread_mutex_lock (&reqlock);
433
434 req->next = 0;
435
436 if (reqe)
437 { 952 {
438 reqe->next = req; 953 case SVt_PVIO:
439 reqe = req; 954 case SVt_PVLV:
955 case SVt_PVGV:
956 req->type = type_fh;
957 req->sv1 = newSVsv (fh_or_path);
958 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
959 break;
960
961 default:
962 req->type = type_path;
963 req_set_path1 (req, fh_or_path);
964 break;
440 } 965 }
441 else
442 reqe = reqs = req;
443
444 pthread_cond_signal (&reqwait);
445 pthread_mutex_unlock (&reqlock);
446
447 if (nreqs > max_outstanding)
448 for (;;)
449 {
450 poll_cb ();
451
452 if (nreqs <= max_outstanding)
453 break;
454
455 poll_wait ();
456 }
457} 966}
458 967
459static void end_thread (void) 968XS(boot_IO__AIO) ecb_cold;
460{
461 aio_req req;
462 Newz (0, req, 1, aio_cb);
463 req->type = REQ_QUIT;
464 969
465 req_send (req); 970MODULE = IO::AIO PACKAGE = IO::AIO
466}
467 971
468static void min_parallel (int nthreads) 972PROTOTYPES: ENABLE
469{
470 if (wanted < nthreads)
471 wanted = nthreads;
472}
473 973
474static void max_parallel (int nthreads) 974BOOT:
475{ 975{
476 int cur = started; 976 static const struct {
977 const char *name;
978 IV iv;
979 } *civ, const_iv[] = {
980# define const_niv(name, value) { # name, (IV) value },
981# define const_iv(name) { # name, (IV) name },
982# define const_eio(name) { # name, (IV) EIO_ ## name },
477 983
478 if (wanted > nthreads) 984 /* you have to re-run ./gendef0 after adding/removing any constants here */
479 wanted = nthreads; 985 /* the first block can be undef if missing */
986 const_iv (ENOSYS)
987 const_iv (EXDEV)
988 const_iv (EBADR)
480 989
481 while (cur > wanted) 990 /* for lseek */
482 { 991 const_iv (SEEK_DATA)
483 end_thread (); 992 const_iv (SEEK_HOLE)
484 cur--;
485 }
486 993
487 while (started > wanted) 994 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
488 { 995 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
489 poll_wait (); 996 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
490 poll_cb (); 997 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
491 } 998 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
492} 999 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
493 1000
494static void create_pipe () 1001 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
495{ 1002 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
496 if (pipe (respipe)) 1003 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
497 croak ("unable to initialize result pipe"); 1004 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1005 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
498 1006
499 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 1007 /* the second block will be 0 when missing */
500 croak ("cannot set result pipe to nonblocking mode"); 1008 const_iv (O_RDONLY)
1009 const_iv (O_WRONLY)
1010 const_iv (O_RDWR)
1011 const_iv (O_CREAT)
1012 const_iv (O_TRUNC)
1013 const_iv (O_EXCL)
1014 const_iv (O_APPEND)
501 1015
502 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 1016 const_iv (O_ASYNC)
503 croak ("cannot set result pipe to nonblocking mode"); 1017 const_iv (O_DIRECT)
504} 1018 const_iv (O_NOATIME)
505 1019
506/*****************************************************************************/ 1020 const_iv (O_CLOEXEC)
507/* work around various missing functions */ 1021 const_iv (O_NOCTTY)
1022 const_iv (O_NOFOLLOW)
1023 const_iv (O_NONBLOCK)
1024 const_iv (O_EXEC)
1025 const_iv (O_SEARCH)
1026 const_iv (O_DIRECTORY)
1027 const_iv (O_DSYNC)
1028 const_iv (O_RSYNC)
1029 const_iv (O_SYNC)
1030 const_iv (O_PATH)
1031 const_iv (O_TMPFILE)
1032 const_iv (O_TTY_INIT)
508 1033
509#if !HAVE_PREADWRITE 1034 const_iv (S_IFIFO)
510# define pread aio_pread 1035 const_iv (S_IFCHR)
511# define pwrite aio_pwrite 1036 const_iv (S_IFBLK)
1037 const_iv (S_IFLNK)
1038 const_iv (S_IFREG)
1039 const_iv (S_IFDIR)
1040 const_iv (S_IFWHT)
1041 const_iv (S_IFSOCK)
1042 const_iv (S_IFMT)
512 1043
513/* 1044 const_iv (ST_RDONLY)
514 * make our pread/pwrite safe against themselves, but not against 1045 const_iv (ST_NOSUID)
515 * normal read/write by using a mutex. slows down execution a lot, 1046 const_iv (ST_NODEV)
516 * but that's your problem, not mine. 1047 const_iv (ST_NOEXEC)
517 */ 1048 const_iv (ST_SYNCHRONOUS)
518static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; 1049 const_iv (ST_MANDLOCK)
1050 const_iv (ST_WRITE)
1051 const_iv (ST_APPEND)
1052 const_iv (ST_IMMUTABLE)
1053 const_iv (ST_NOATIME)
1054 const_iv (ST_NODIRATIME)
1055 const_iv (ST_RELATIME)
519 1056
520static ssize_t pread (int fd, void *buf, size_t count, off_t offset) 1057 const_iv (PROT_NONE)
521{ 1058 const_iv (PROT_EXEC)
522 ssize_t res; 1059 const_iv (PROT_READ)
523 off_t ooffset; 1060 const_iv (PROT_WRITE)
524 1061
525 pthread_mutex_lock (&preadwritelock); 1062 const_iv (MAP_PRIVATE)
526 ooffset = lseek (fd, 0, SEEK_CUR); 1063 const_iv (MAP_SHARED)
527 lseek (fd, offset, SEEK_SET); 1064 const_iv (MAP_FIXED)
528 res = read (fd, buf, count); 1065 const_iv (MAP_ANONYMOUS)
529 lseek (fd, ooffset, SEEK_SET);
530 pthread_mutex_unlock (&preadwritelock);
531 1066
532 return res; 1067 /* linuxish */
533} 1068 const_iv (MAP_LOCKED)
1069 const_iv (MAP_NORESERVE)
1070 const_iv (MAP_POPULATE)
1071 const_iv (MAP_NONBLOCK)
1072 const_iv (MAP_GROWSDOWN)
1073 const_iv (MAP_32BIT)
1074 const_iv (MAP_HUGETLB)
1075 const_iv (MAP_STACK)
534 1076
535static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1077 const_iv (F_DUPFD_CLOEXEC)
536{
537 ssize_t res;
538 off_t ooffset;
539 1078
540 pthread_mutex_lock (&preadwritelock); 1079 const_iv (F_OFD_GETLK)
541 ooffset = lseek (fd, 0, SEEK_CUR); 1080 const_iv (F_OFD_SETLK)
542 lseek (fd, offset, SEEK_SET); 1081 const_iv (F_OFD_GETLKW)
543 res = write (fd, buf, count);
544 lseek (fd, offset, SEEK_SET);
545 pthread_mutex_unlock (&preadwritelock);
546 1082
547 return res; 1083 const_iv (FIFREEZE)
548} 1084 const_iv (FITHAW)
549#endif 1085 const_iv (FITRIM)
1086 const_iv (FICLONE)
1087 const_iv (FICLONERANGE)
1088 const_iv (FIDEDUPERANGE)
550 1089
551#if !HAVE_FDATASYNC 1090 const_iv (FS_IOC_GETFLAGS)
552# define fdatasync fsync 1091 const_iv (FS_IOC_SETFLAGS)
553#endif 1092 const_iv (FS_IOC_GETVERSION)
1093 const_iv (FS_IOC_SETVERSION)
1094 const_iv (FS_IOC_FIEMAP)
1095 const_iv (FS_IOC_FSGETXATTR)
1096 const_iv (FS_IOC_FSSETXATTR)
1097 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1098 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1099 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
554 1100
555#if !HAVE_READAHEAD 1101 const_iv (FS_KEY_DESCRIPTOR_SIZE)
556# define readahead aio_readahead
557 1102
558static ssize_t readahead (int fd, off_t offset, size_t count) 1103 const_iv (FS_SECRM_FL)
559{ 1104 const_iv (FS_UNRM_FL)
560 char readahead_buf[4096]; 1105 const_iv (FS_COMPR_FL)
1106 const_iv (FS_SYNC_FL)
1107 const_iv (FS_IMMUTABLE_FL)
1108 const_iv (FS_APPEND_FL)
1109 const_iv (FS_NODUMP_FL)
1110 const_iv (FS_NOATIME_FL)
1111 const_iv (FS_DIRTY_FL)
1112 const_iv (FS_COMPRBLK_FL)
1113 const_iv (FS_NOCOMP_FL)
1114 const_iv (FS_ENCRYPT_FL)
1115 const_iv (FS_BTREE_FL)
1116 const_iv (FS_INDEX_FL)
1117 const_iv (FS_JOURNAL_DATA_FL)
1118 const_iv (FS_NOTAIL_FL)
1119 const_iv (FS_DIRSYNC_FL)
1120 const_iv (FS_TOPDIR_FL)
1121 const_iv (FS_FL_USER_MODIFIABLE)
561 1122
562 while (count > 0) 1123 const_iv (FS_XFLAG_REALTIME)
563 { 1124 const_iv (FS_XFLAG_PREALLOC)
564 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); 1125 const_iv (FS_XFLAG_IMMUTABLE)
1126 const_iv (FS_XFLAG_APPEND)
1127 const_iv (FS_XFLAG_SYNC)
1128 const_iv (FS_XFLAG_NOATIME)
1129 const_iv (FS_XFLAG_NODUMP)
1130 const_iv (FS_XFLAG_RTINHERIT)
1131 const_iv (FS_XFLAG_PROJINHERIT)
1132 const_iv (FS_XFLAG_NOSYMLINKS)
1133 const_iv (FS_XFLAG_EXTSIZE)
1134 const_iv (FS_XFLAG_EXTSZINHERIT)
1135 const_iv (FS_XFLAG_NODEFRAG)
1136 const_iv (FS_XFLAG_FILESTREAM)
1137 const_iv (FS_XFLAG_DAX)
1138 const_iv (FS_XFLAG_HASATTR)
565 1139
566 pread (fd, readahead_buf, len, offset); 1140 const_iv (FIEMAP_FLAG_SYNC)
567 offset += len; 1141 const_iv (FIEMAP_FLAG_XATTR)
568 count -= len; 1142 const_iv (FIEMAP_FLAGS_COMPAT)
569 } 1143 const_iv (FIEMAP_EXTENT_LAST)
1144 const_iv (FIEMAP_EXTENT_UNKNOWN)
1145 const_iv (FIEMAP_EXTENT_DELALLOC)
1146 const_iv (FIEMAP_EXTENT_ENCODED)
1147 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1148 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1149 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1150 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1151 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1152 const_iv (FIEMAP_EXTENT_MERGED)
1153 const_iv (FIEMAP_EXTENT_SHARED)
570 1154
571 errno = 0; 1155 const_iv (SPLICE_F_MOVE)
572} 1156 const_iv (SPLICE_F_NONBLOCK)
573#endif 1157 const_iv (SPLICE_F_MORE)
1158 const_iv (SPLICE_F_GIFT)
574 1159
575#if !HAVE_READDIR_R 1160 /* these are libeio constants, and are independent of gendef0 */
576# define readdir_r aio_readdir_r 1161 const_eio (SEEK_SET)
1162 const_eio (SEEK_CUR)
1163 const_eio (SEEK_END)
577 1164
578static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; 1165 const_eio (MCL_FUTURE)
579 1166 const_eio (MCL_CURRENT)
580static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
581{
582 struct dirent *e;
583 int errorno;
584 1167
585 pthread_mutex_lock (&readdirlock); 1168 const_eio (MS_ASYNC)
1169 const_eio (MS_INVALIDATE)
1170 const_eio (MS_SYNC)
586 1171
587 e = readdir (dirp); 1172 const_eio (MT_MODIFY)
588 errorno = errno;
589 1173
590 if (e) 1174 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
591 { 1175 const_eio (SYNC_FILE_RANGE_WRITE)
592 *res = ent; 1176 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
593 strcpy (ent->d_name, e->d_name);
594 }
595 else
596 *res = 0;
597 1177
598 pthread_mutex_unlock (&readdirlock); 1178 const_eio (FALLOC_FL_KEEP_SIZE)
1179 const_eio (FALLOC_FL_PUNCH_HOLE)
1180 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1181 const_eio (FALLOC_FL_ZERO_RANGE)
1182 const_eio (FALLOC_FL_INSERT_RANGE)
1183 const_eio (FALLOC_FL_UNSHARE_RANGE)
599 1184
600 errno = errorno; 1185 const_eio (RENAME_NOREPLACE)
601 return e ? 0 : -1; 1186 const_eio (RENAME_EXCHANGE)
602} 1187 const_eio (RENAME_WHITEOUT)
603#endif
604 1188
605/* sendfile always needs emulation */ 1189 const_eio (READDIR_DENTS)
606static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) 1190 const_eio (READDIR_DIRS_FIRST)
607{ 1191 const_eio (READDIR_STAT_ORDER)
608 ssize_t res; 1192 const_eio (READDIR_FOUND_UNKNOWN)
609 1193
610 if (!count) 1194 const_eio (DT_UNKNOWN)
611 return 0; 1195 const_eio (DT_FIFO)
612 1196 const_eio (DT_CHR)
613#if HAVE_SENDFILE 1197 const_eio (DT_DIR)
614# if __linux 1198 const_eio (DT_BLK)
615 res = sendfile (ofd, ifd, &offset, count); 1199 const_eio (DT_REG)
616 1200 const_eio (DT_LNK)
617# elif __freebsd 1201 const_eio (DT_SOCK)
618 /* 1202 const_eio (DT_WHT)
619 * Of course, the freebsd sendfile is a dire hack with no thoughts
620 * wasted on making it similar to other I/O functions.
621 */
622 {
623 off_t sbytes;
624 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
625
626 if (res < 0 && sbytes)
627 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
628 res = sbytes;
629 } 1203 };
630 1204
631# elif __hpux 1205 aio_stash = gv_stashpv ("IO::AIO" , 1);
632 res = sendfile (ofd, ifd, offset, count, 0, 0); 1206 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1207 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1208 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
633 1209
634# elif __solaris 1210 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
635 { 1211 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
636 struct sendfilevec vec;
637 size_t sbytes;
638 1212
639 vec.sfv_fd = ifd; 1213 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
640 vec.sfv_flag = 0;
641 vec.sfv_off = offset;
642 vec.sfv_len = count;
643 1214
644 res = sendfilev (ofd, &vec, 1, &sbytes); 1215 reinit ();
1216}
645 1217
646 if (res < 0 && sbytes) 1218void
1219reinit ()
1220 PROTOTYPE:
1221
1222void
1223max_poll_reqs (unsigned int nreqs)
1224 PROTOTYPE: $
1225 CODE:
1226 eio_set_max_poll_reqs (nreqs);
1227
1228void
1229max_poll_time (double nseconds)
1230 PROTOTYPE: $
1231 CODE:
1232 eio_set_max_poll_time (nseconds);
1233
1234void
1235min_parallel (unsigned int nthreads)
1236 PROTOTYPE: $
1237 CODE:
1238 eio_set_min_parallel (nthreads);
1239
1240void
1241max_parallel (unsigned int nthreads)
1242 PROTOTYPE: $
1243 CODE:
1244 eio_set_max_parallel (nthreads);
1245
1246void
1247max_idle (unsigned int nthreads)
1248 PROTOTYPE: $
1249 CODE:
1250 eio_set_max_idle (nthreads);
1251
1252void
1253idle_timeout (unsigned int seconds)
1254 PROTOTYPE: $
1255 CODE:
1256 eio_set_idle_timeout (seconds);
1257
1258void
1259max_outstanding (unsigned int maxreqs)
1260 PROTOTYPE: $
1261 CODE:
1262 max_outstanding = maxreqs;
1263
1264void
1265aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1266 PPCODE:
1267{
1268 dREQ;
1269
1270 req->type = EIO_WD_OPEN;
1271 req_set_path1 (req, pathname);
1272
1273 REQ_SEND;
1274}
1275
1276void
1277aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1278 PPCODE:
1279{
1280 dREQ;
1281
1282 req->type = EIO_OPEN;
1283 req_set_path1 (req, pathname);
1284 req->int1 = flags;
1285 req->int2 = mode;
1286
1287 REQ_SEND;
1288}
1289
1290void
1291aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1292 ALIAS:
1293 aio_fsync = EIO_FSYNC
1294 aio_fdatasync = EIO_FDATASYNC
1295 aio_syncfs = EIO_SYNCFS
1296 PPCODE:
1297{
1298 int fd = s_fileno_croak (fh, 0);
1299 dREQ;
1300
1301 req->type = ix;
1302 req->sv1 = newSVsv (fh);
1303 req->int1 = fd;
1304
1305 REQ_SEND;
1306}
1307
1308void
1309aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1310 PPCODE:
1311{
1312 int fd = s_fileno_croak (fh, 0);
1313 dREQ;
1314
1315 req->type = EIO_SYNC_FILE_RANGE;
1316 req->sv1 = newSVsv (fh);
1317 req->int1 = fd;
1318 req->offs = offset;
647 res = sbytes; 1319 req->size = nbytes;
648 } 1320 req->int2 = flags;
649 1321
650# endif 1322 REQ_SEND;
1323}
1324
1325void
1326aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1327 PPCODE:
1328{
1329 int fd = s_fileno_croak (fh, 0);
1330 dREQ;
1331
1332 req->type = EIO_FALLOCATE;
1333 req->sv1 = newSVsv (fh);
1334 req->int1 = fd;
1335 req->int2 = mode;
1336 req->offs = offset;
1337 req->size = len;
1338
1339 REQ_SEND;
1340}
1341
1342void
1343aio_close (SV *fh, SV *callback = &PL_sv_undef)
1344 PPCODE:
1345{
1346 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1347 int fd = s_fileno_croak (fh, 0);
1348 dREQ;
1349
1350 if (expect_false (close_fd < 0))
1351 {
1352 int pipefd [2];
1353
1354 if (
1355#ifdef _WIN32
1356 _pipe (pipefd, 1, _O_BINARY) < 0
651#else 1357#else
652 res = -1; 1358 pipe (pipefd) < 0
653 errno = ENOSYS; 1359 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
654#endif 1360#endif
655 1361 || close (pipefd [1]) < 0
656 if (res < 0
657 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
658#if __solaris
659 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
660#endif
661 )
662 )
663 {
664 /* emulate sendfile. this is a major pain in the ass */
665 char buf[4096];
666 res = 0;
667
668 while (count)
669 {
670 ssize_t cnt;
671
672 cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
673
674 if (cnt <= 0)
675 { 1362 )
676 if (cnt && !res) res = -1; 1363 abort (); /*D*/
677 break;
678 }
679 1364
680 cnt = write (ofd, buf, cnt); 1365 close_fd = pipefd [0];
681
682 if (cnt <= 0)
683 {
684 if (cnt && !res) res = -1;
685 break;
686 }
687
688 offset += cnt;
689 res += cnt;
690 count -= cnt;
691 }
692 }
693
694 return res;
695}
696
697/* read a full directory */
698static int scandir_ (const char *path, void **namesp)
699{
700 DIR *dirp = opendir (path);
701 union
702 {
703 struct dirent d;
704 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
705 } u;
706 struct dirent *entp;
707 char *name, *names;
708 int memlen = 4096;
709 int memofs = 0;
710 int res = 0;
711 int errorno;
712
713 if (!dirp)
714 return -1;
715
716 names = malloc (memlen);
717
718 for (;;)
719 {
720 errno = 0, readdir_r (dirp, &u.d, &entp);
721
722 if (!entp)
723 break;
724
725 name = entp->d_name;
726
727 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
728 {
729 int len = strlen (name) + 1;
730
731 res++;
732
733 while (memofs + len > memlen)
734 {
735 memlen *= 2;
736 names = realloc (names, memlen);
737 if (!names)
738 break;
739 }
740
741 memcpy (names + memofs, name, len);
742 memofs += len;
743 }
744 }
745
746 errorno = errno;
747 closedir (dirp);
748
749 if (errorno)
750 {
751 free (names);
752 errno = errorno;
753 res = -1;
754 }
755
756 *namesp = (void *)names;
757 return res;
758}
759
760/*****************************************************************************/
761
762static void *aio_proc (void *thr_arg)
763{
764 aio_req req;
765 int type;
766
767 do
768 {
769 pthread_mutex_lock (&reqlock);
770
771 for (;;)
772 {
773 req = reqs;
774
775 if (reqs)
776 {
777 reqs = reqs->next;
778 if (!reqs) reqe = 0;
779 }
780
781 if (req)
782 break;
783
784 pthread_cond_wait (&reqwait, &reqlock);
785 }
786
787 pthread_mutex_unlock (&reqlock);
788
789 errno = 0; /* strictly unnecessary */
790
791 if (!req->cancelled)
792 switch (type = req->type) /* remember type for QUIT check */
793 {
794 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
795 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
796
797 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
798 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
799
800 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
801 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
802 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
803
804 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
805 case REQ_CLOSE: req->result = close (req->fd); break;
806 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
807 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
808 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
809 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
810 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
811
812 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
813 case REQ_FSYNC: req->result = fsync (req->fd); break;
814 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
815
816 case REQ_SLEEP:
817 {
818 struct timeval tv;
819
820 tv.tv_sec = req->fd;
821 tv.tv_usec = req->fd2;
822
823 req->result = select (0, 0, 0, 0, &tv);
824 }
825
826 case REQ_GROUP:
827 case REQ_NOP:
828 case REQ_QUIT:
829 break;
830
831 default:
832 req->result = ENOSYS;
833 break;
834 } 1366 }
835 1367
836 req->errorno = errno; 1368 req->type = EIO_DUP2;
837 1369 req->int1 = close_fd;
838 pthread_mutex_lock (&reslock); 1370 req->sv2 = newSVsv (fh);
839
840 req->next = 0; 1371 req->int2 = fd;
841 1372
842 if (rese) 1373 REQ_SEND;
843 {
844 rese->next = req;
845 rese = req;
846 }
847 else
848 {
849 rese = ress = req;
850
851 /* write a dummy byte to the pipe so fh becomes ready */
852 write (respipe [1], &respipe, 1);
853 }
854
855 pthread_mutex_unlock (&reslock);
856 }
857 while (type != REQ_QUIT);
858
859 return 0;
860} 1374}
861 1375
862/*****************************************************************************/
863
864static void atfork_prepare (void)
865{
866 pthread_mutex_lock (&reqlock);
867 pthread_mutex_lock (&reslock);
868#if !HAVE_PREADWRITE
869 pthread_mutex_lock (&preadwritelock);
870#endif
871#if !HAVE_READDIR_R
872 pthread_mutex_lock (&readdirlock);
873#endif
874}
875
876static void atfork_parent (void)
877{
878#if !HAVE_READDIR_R
879 pthread_mutex_unlock (&readdirlock);
880#endif
881#if !HAVE_PREADWRITE
882 pthread_mutex_unlock (&preadwritelock);
883#endif
884 pthread_mutex_unlock (&reslock);
885 pthread_mutex_unlock (&reqlock);
886}
887
888static void atfork_child (void)
889{
890 aio_req prv;
891
892 started = 0;
893
894 while (reqs)
895 {
896 prv = reqs;
897 reqs = prv->next;
898 req_free (prv);
899 }
900
901 reqs = reqe = 0;
902
903 while (ress)
904 {
905 prv = ress;
906 ress = prv->next;
907 req_free (prv);
908 }
909
910 ress = rese = 0;
911
912 close (respipe [0]);
913 close (respipe [1]);
914 create_pipe ();
915
916 atfork_parent ();
917}
918
919#define dREQ \
920 aio_req req; \
921 \
922 if (SvOK (callback) && !SvROK (callback)) \
923 croak ("callback must be undef or of reference type"); \
924 \
925 Newz (0, req, 1, aio_cb); \
926 if (!req) \
927 croak ("out of memory during aio_req allocation"); \
928 \
929 req->callback = newSVsv (callback)
930
931#define REQ_SEND \
932 req_send (req); \
933 \
934 if (GIMME_V != G_VOID) \
935 XPUSHs (req_sv (req, AIO_REQ_KLASS));
936
937MODULE = IO::AIO PACKAGE = IO::AIO
938
939PROTOTYPES: ENABLE
940
941BOOT:
942{
943 HV *stash = gv_stashpv ("IO::AIO", 1);
944 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
945 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
946 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
947
948 create_pipe ();
949 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
950}
951
952void 1376void
953min_parallel (nthreads) 1377aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
954 int nthreads
955 PROTOTYPE: $
956
957void
958max_parallel (nthreads)
959 int nthreads
960 PROTOTYPE: $
961
962int
963max_outstanding (nreqs)
964 int nreqs
965 PROTOTYPE: $
966 CODE: 1378 PPCODE:
967 RETVAL = max_outstanding;
968 max_outstanding = nreqs;
969
970void
971aio_open (pathname,flags,mode,callback=&PL_sv_undef)
972 SV * pathname
973 int flags
974 int mode
975 SV * callback
976 PROTOTYPE: $$$;$
977 PPCODE:
978{ 1379{
1380 int fd = s_fileno_croak (fh, 0);
979 dREQ; 1381 dREQ;
980 1382
981 req->type = REQ_OPEN; 1383 req->type = EIO_SEEK;
982 req->data = newSVsv (pathname); 1384 req->sv1 = newSVsv (fh);
983 req->dataptr = SvPVbyte_nolen (req->data); 1385 req->int1 = fd;
984 req->fd = flags; 1386 req->offs = SvVAL64 (offset);
985 req->mode = mode; 1387 req->int2 = whence;
986 1388
987 REQ_SEND; 1389 REQ_SEND;
988} 1390}
989 1391
990void 1392void
991aio_close (fh,callback=&PL_sv_undef) 1393aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
992 SV * fh
993 SV * callback
994 PROTOTYPE: $;$
995 ALIAS: 1394 ALIAS:
996 aio_close = REQ_CLOSE
997 aio_fsync = REQ_FSYNC
998 aio_fdatasync = REQ_FDATASYNC
999 PPCODE:
1000{
1001 dREQ;
1002
1003 req->type = ix;
1004 req->fh = newSVsv (fh);
1005 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1006
1007 REQ_SEND (req);
1008}
1009
1010void
1011aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1012 SV * fh
1013 UV offset
1014 UV length
1015 SV * data
1016 UV dataoffset
1017 SV * callback
1018 ALIAS:
1019 aio_read = REQ_READ 1395 aio_read = EIO_READ
1020 aio_write = REQ_WRITE 1396 aio_write = EIO_WRITE
1021 PROTOTYPE: $$$$$;$
1022 PPCODE: 1397 PPCODE:
1023{ 1398{
1024 aio_req req;
1025 STRLEN svlen; 1399 STRLEN svlen;
1400 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1026 char *svptr = SvPVbyte (data, svlen); 1401 char *svptr = SvPVbyte (data, svlen);
1027 1402 UV len = SvUV (length);
1028 SvUPGRADE (data, SVt_PV);
1029 SvPOK_on (data);
1030 1403
1031 if (dataoffset < 0) 1404 if (dataoffset < 0)
1032 dataoffset += svlen; 1405 dataoffset += svlen;
1033 1406
1034 if (dataoffset < 0 || dataoffset > svlen) 1407 if (dataoffset < 0 || dataoffset > svlen)
1035 croak ("data offset outside of string"); 1408 croak ("dataoffset outside of data scalar");
1036 1409
1037 if (ix == REQ_WRITE) 1410 if (ix == EIO_WRITE)
1038 { 1411 {
1039 /* write: check length and adjust. */ 1412 /* write: check length and adjust. */
1040 if (length < 0 || length + dataoffset > svlen) 1413 if (!SvOK (length) || len + dataoffset > svlen)
1041 length = svlen - dataoffset; 1414 len = svlen - dataoffset;
1042 } 1415 }
1043 else 1416 else
1044 { 1417 {
1045 /* read: grow scalar as necessary */ 1418 /* read: check type and grow scalar as necessary */
1419 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1046 svptr = SvGROW (data, length + dataoffset); 1420 svptr = sv_grow (data, len + dataoffset);
1421 else if (SvCUR (data) < len + dataoffset)
1422 croak ("length + dataoffset outside of scalar, and cannot grow");
1047 } 1423 }
1048
1049 if (length < 0)
1050 croak ("length must not be negative");
1051 1424
1052 { 1425 {
1053 dREQ; 1426 dREQ;
1054 1427
1055 req->type = ix; 1428 req->type = ix;
1056 req->fh = newSVsv (fh); 1429 req->sv1 = newSVsv (fh);
1057 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1430 req->int1 = fd;
1058 : IoOFP (sv_2io (fh))); 1431 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1059 req->offset = offset; 1432 req->size = len;
1060 req->length = length;
1061 req->data = SvREFCNT_inc (data); 1433 req->sv2 = SvREFCNT_inc (data);
1062 req->dataptr = (char *)svptr + dataoffset; 1434 req->ptr2 = (char *)svptr + dataoffset;
1435 req->stroffset = dataoffset;
1063 1436
1064 if (!SvREADONLY (data)) 1437 if (!SvREADONLY (data))
1065 { 1438 {
1066 SvREADONLY_on (data); 1439 SvREADONLY_on (data);
1067 req->data2ptr = (void *)data; 1440 req->flags |= FLAG_SV2_RO_OFF;
1068 } 1441 }
1069 1442
1070 REQ_SEND; 1443 REQ_SEND;
1071 } 1444 }
1072} 1445}
1073 1446
1074void 1447void
1075aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1448aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1076 SV * out_fh 1449 ALIAS:
1077 SV * in_fh 1450 aio_ioctl = EIO_IOCTL
1078 UV in_offset 1451 aio_fcntl = EIO_FCNTL
1079 UV length
1080 SV * callback
1081 PROTOTYPE: $$$$;$
1082 PPCODE: 1452 PPCODE:
1083{ 1453{
1084 dREQ; 1454 int fd = s_fileno_croak (fh, 0);
1455 char *svptr;
1085 1456
1086 req->type = REQ_SENDFILE; 1457 if (SvPOK (arg) || !SvNIOK (arg))
1087 req->fh = newSVsv (out_fh);
1088 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1089 req->fh2 = newSVsv (in_fh);
1090 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1091 req->offset = in_offset;
1092 req->length = length;
1093
1094 REQ_SEND;
1095}
1096
1097void
1098aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1099 SV * fh
1100 UV offset
1101 IV length
1102 SV * callback
1103 PROTOTYPE: $$$;$
1104 PPCODE:
1105{
1106 dREQ;
1107
1108 req->type = REQ_READAHEAD;
1109 req->fh = newSVsv (fh);
1110 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1111 req->offset = offset;
1112 req->length = length;
1113
1114 REQ_SEND;
1115}
1116
1117void
1118aio_stat (fh_or_path,callback=&PL_sv_undef)
1119 SV * fh_or_path
1120 SV * callback
1121 ALIAS:
1122 aio_stat = REQ_STAT
1123 aio_lstat = REQ_LSTAT
1124 PPCODE:
1125{
1126 dREQ;
1127
1128 New (0, req->statdata, 1, Stat_t);
1129 if (!req->statdata)
1130 { 1458 {
1131 req_free (req); 1459 STRLEN svlen;
1132 croak ("out of memory during aio_req->statdata allocation"); 1460 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1133 } 1461#ifdef IOCPARM_LEN
1462 STRLEN need = IOCPARM_LEN (request);
1463#else
1464 STRLEN need = 256;
1465#endif
1134 1466
1135 if (SvPOK (fh_or_path)) 1467 if (svlen < need)
1136 { 1468 svptr = SvGROW (arg, need);
1137 req->type = ix;
1138 req->data = newSVsv (fh_or_path);
1139 req->dataptr = SvPVbyte_nolen (req->data);
1140 } 1469 }
1141 else 1470 else
1471 svptr = (char *)SvIV (arg);
1472
1142 { 1473 {
1474 dREQ;
1475
1143 req->type = REQ_FSTAT; 1476 req->type = ix;
1144 req->fh = newSVsv (fh_or_path); 1477 req->sv1 = newSVsv (fh);
1145 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1478 req->int1 = fd;
1479 req->int2 = (long)request;
1480 req->sv2 = SvREFCNT_inc (arg);
1481 req->ptr2 = svptr;
1482
1483 REQ_SEND;
1146 } 1484 }
1485}
1486
1487void
1488aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1489 ALIAS:
1490 aio_readlink = EIO_READLINK
1491 aio_realpath = EIO_REALPATH
1492 PPCODE:
1493{
1494 dREQ;
1495
1496 req->type = ix;
1497 req_set_path1 (req, pathname);
1147 1498
1148 REQ_SEND; 1499 REQ_SEND;
1149} 1500}
1150 1501
1151void 1502void
1152aio_unlink (pathname,callback=&PL_sv_undef) 1503aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1153 SV * pathname 1504 PPCODE:
1154 SV * callback 1505{
1506 int ifd = s_fileno_croak (in_fh , 0);
1507 int ofd = s_fileno_croak (out_fh, 1);
1508 dREQ;
1509
1510 req->type = EIO_SENDFILE;
1511 req->sv1 = newSVsv (out_fh);
1512 req->int1 = ofd;
1513 req->sv2 = newSVsv (in_fh);
1514 req->int2 = ifd;
1515 req->offs = in_offset;
1516 req->size = length;
1517
1518 REQ_SEND;
1519}
1520
1521void
1522aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1523 PPCODE:
1524{
1525 int fd = s_fileno_croak (fh, 0);
1526 dREQ;
1527
1528 req->type = EIO_READAHEAD;
1529 req->sv1 = newSVsv (fh);
1530 req->int1 = fd;
1531 req->offs = offset;
1532 req->size = length;
1533
1534 REQ_SEND;
1535}
1536
1537void
1538aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1155 ALIAS: 1539 ALIAS:
1540 aio_stat = EIO_STAT
1541 aio_lstat = EIO_LSTAT
1542 aio_statvfs = EIO_STATVFS
1543 PPCODE:
1544{
1545 dREQ;
1546
1547 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1548
1549 REQ_SEND;
1550}
1551
1552UV
1553major (UV dev)
1554 ALIAS:
1555 minor = 1
1556 CODE:
1557 RETVAL = ix ? minor (dev) : major (dev);
1558 OUTPUT:
1559 RETVAL
1560
1561UV
1562makedev (UV maj, UV min)
1563 CODE:
1564 RETVAL = makedev (maj, min);
1565 OUTPUT:
1566 RETVAL
1567
1568void
1569aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1570 PPCODE:
1571{
1572 dREQ;
1573
1574 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1575 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1576 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1577
1578 REQ_SEND;
1579}
1580
1581void
1582aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1583 PPCODE:
1584{
1585 dREQ;
1586
1587 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1588 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1589
1590 REQ_SEND;
1591}
1592
1593void
1594aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1595 PPCODE:
1596{
1597 dREQ;
1598
1599 req->int2 = mode;
1600 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1601
1602 REQ_SEND;
1603}
1604
1605void
1606aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1607 PPCODE:
1608{
1609 dREQ;
1610
1611 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1612 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1613 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1614
1615 REQ_SEND;
1616}
1617
1618void
1619aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1620 PPCODE:
1621{
1622 dREQ;
1623
1624 req->type = EIO_READDIR;
1625 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1626
1627 if (flags & EIO_READDIR_DENTS)
1628 req->int1 |= EIO_READDIR_CUSTOM2;
1629
1630 req_set_path1 (req, pathname);
1631
1632 REQ_SEND;
1633}
1634
1635void
1636aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1637 PPCODE:
1638{
1639 dREQ;
1640
1641 req->type = EIO_MKDIR;
1642 req->int2 = mode;
1643 req_set_path1 (req, pathname);
1644
1645 REQ_SEND;
1646}
1647
1648void
1649aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1650 ALIAS:
1156 aio_unlink = REQ_UNLINK 1651 aio_unlink = EIO_UNLINK
1157 aio_rmdir = REQ_RMDIR 1652 aio_rmdir = EIO_RMDIR
1158 aio_readdir = REQ_READDIR 1653 aio_readdir = EIO_READDIR
1159 PPCODE: 1654 PPCODE:
1160{ 1655{
1161 dREQ; 1656 dREQ;
1162 1657
1163 req->type = ix; 1658 req->type = ix;
1164 req->data = newSVsv (pathname); 1659 req_set_path1 (req, pathname);
1165 req->dataptr = SvPVbyte_nolen (req->data); 1660
1166
1167 REQ_SEND; 1661 REQ_SEND;
1168} 1662}
1169 1663
1170void 1664void
1171aio_link (oldpath,newpath,callback=&PL_sv_undef) 1665aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1172 SV * oldpath
1173 SV * newpath
1174 SV * callback
1175 ALIAS: 1666 ALIAS:
1176 aio_link = REQ_LINK 1667 aio_link = EIO_LINK
1177 aio_symlink = REQ_SYMLINK 1668 aio_symlink = EIO_SYMLINK
1178 aio_rename = REQ_RENAME 1669 aio_rename = EIO_RENAME
1179 PPCODE: 1670 PPCODE:
1180{ 1671{
1672 eio_wd wd2 = 0;
1181 dREQ; 1673 dREQ;
1182 1674
1183 req->type = ix; 1675 req->type = ix;
1184 req->fh = newSVsv (oldpath); 1676 req_set_path1 (req, oldpath);
1185 req->data2ptr = SvPVbyte_nolen (req->fh); 1677 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1186 req->data = newSVsv (newpath); 1678 req->int3 = (long)wd2;
1187 req->dataptr = SvPVbyte_nolen (req->data);
1188 1679
1189 REQ_SEND; 1680 REQ_SEND;
1190} 1681}
1191 1682
1192void 1683void
1193aio_sleep (delay,callback=&PL_sv_undef) 1684aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1194 double delay
1195 SV * callback
1196 PPCODE: 1685 PPCODE:
1197{ 1686{
1687 eio_wd wd2 = 0;
1198 dREQ; 1688 dREQ;
1199 1689
1200 req->type = REQ_SLEEP; 1690 req->type = EIO_RENAME;
1201 req->fd = delay < 0. ? 0 : delay; 1691 req_set_path1 (req, oldpath);
1202 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1692 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1203 1693 req->int2 = flags;
1694 req->int3 = (long)wd2;
1695
1204 REQ_SEND; 1696 REQ_SEND;
1205} 1697}
1206 1698
1207void 1699void
1208aio_group (callback=&PL_sv_undef) 1700aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1209 SV * callback 1701 PPCODE:
1210 PROTOTYPE: ;$ 1702{
1703 dREQ;
1704
1705 req->type = EIO_MKNOD;
1706 req->int2 = (mode_t)mode;
1707 req->offs = dev;
1708 req_set_path1 (req, pathname);
1709
1710 REQ_SEND;
1711}
1712
1713void
1714aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1715 ALIAS:
1716 aio_mtouch = EIO_MTOUCH
1717 aio_msync = EIO_MSYNC
1211 PPCODE: 1718 PPCODE:
1212{ 1719{
1720 STRLEN svlen;
1721 char *svptr = SvPVbyte (data, svlen);
1722 UV len = SvUV (length);
1723
1724 if (flags < 0)
1725 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1726
1727 if (offset < 0)
1728 offset += svlen;
1729
1730 if (offset < 0 || offset > svlen)
1731 croak ("offset outside of scalar");
1732
1733 if (!SvOK (length) || len + offset > svlen)
1734 len = svlen - offset;
1735
1736 {
1737 dREQ;
1738
1739 req->type = ix;
1740 req->sv2 = SvREFCNT_inc (data);
1741 req->ptr2 = (char *)svptr + offset;
1742 req->size = len;
1743 req->int1 = flags;
1744
1745 REQ_SEND;
1746 }
1747}
1748
1749void
1750aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1751 PPCODE:
1752{
1753 STRLEN svlen;
1754 char *svptr = SvPVbyte (data, svlen);
1755 UV len = SvUV (length);
1756
1757 if (offset < 0)
1758 offset += svlen;
1759
1760 if (offset < 0 || offset > svlen)
1761 croak ("offset outside of scalar");
1762
1763 if (!SvOK (length) || len + offset > svlen)
1764 len = svlen - offset;
1765
1766 {
1767 dREQ;
1768
1769 req->type = EIO_MLOCK;
1770 req->sv2 = SvREFCNT_inc (data);
1771 req->ptr2 = (char *)svptr + offset;
1772 req->size = len;
1773
1774 REQ_SEND;
1775 }
1776}
1777
1778void
1779aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1780 PPCODE:
1781{
1782 dREQ;
1783
1784 req->type = EIO_MLOCKALL;
1785 req->int1 = flags;
1786
1787 REQ_SEND;
1788}
1789
1790void
1791aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1792 PPCODE:
1793{
1794 int fd = s_fileno_croak (fh, 0);
1213 dREQ; 1795 dREQ;
1796
1214 req->type = REQ_GROUP; 1797 req->type = EIO_CUSTOM;
1215 req_send (req); 1798 req->sv1 = newSVsv (fh);
1216 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1799 req->int1 = fd;
1217}
1218 1800
1801 req->feed = fiemap;
1802#if HAVE_FIEMAP
1803 /* keep our fingers crossed that the next two types are 64 bit */
1804 req->offs = start;
1805 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1806 req->int2 = flags;
1807 req->int3 = SvOK (count) ? SvIV (count) : -1;
1808#endif
1809
1810 REQ_SEND;
1811}
1812
1219void 1813void
1220aio_nop (callback=&PL_sv_undef) 1814aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1221 SV * callback 1815 PPCODE:
1816{
1817 char *svptr = 0;
1818
1819 sv_clear_foreign (data);
1820
1821 if (length) /* known length, directly read into scalar */
1822 {
1823 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1824 svptr = sv_grow (data, length);
1825 else if (SvCUR (data) < length)
1826 croak ("length outside of scalar, and cannot grow");
1827 else
1828 svptr = SvPVbyte_nolen (data);
1829 }
1830
1831 {
1832 dREQ;
1833
1834 req->type = EIO_SLURP;
1835 req_set_path1 (req, pathname);
1836 req->offs = offset;
1837 req->size = length;
1838 req->sv2 = SvREFCNT_inc (data);
1839 req->ptr2 = svptr;
1840
1841 if (!SvREADONLY (data))
1842 {
1843 SvREADONLY_on (data);
1844 req->flags |= FLAG_SV2_RO_OFF;
1845 }
1846
1847 REQ_SEND;
1848 }
1849}
1850
1851void
1852aio_busy (double delay, SV *callback = &PL_sv_undef)
1222 PPCODE: 1853 PPCODE:
1223{ 1854{
1224 dREQ; 1855 dREQ;
1225 1856
1226 req->type = REQ_NOP; 1857 req->type = EIO_BUSY;
1858 req->nv1 = delay < 0. ? 0. : delay;
1227 1859
1228 REQ_SEND; 1860 REQ_SEND;
1229} 1861}
1230 1862
1231void 1863void
1864aio_group (SV *callback = &PL_sv_undef)
1865 PPCODE:
1866{
1867 dREQ;
1868
1869 req->type = EIO_GROUP;
1870
1871 PUTBACK;
1872 req_submit (req);
1873 SPAGAIN;
1874
1875 XPUSHs (req_sv (req, aio_grp_stash));
1876}
1877
1878void
1879aio_nop (SV *callback = &PL_sv_undef)
1880 ALIAS:
1881 aio_nop = EIO_NOP
1882 aio_sync = EIO_SYNC
1883 PPCODE:
1884{
1885 dREQ;
1886
1887 req->type = ix;
1888
1889 REQ_SEND;
1890}
1891
1892int
1893aioreq_pri (int pri = NO_INIT)
1894 CODE:
1895 RETVAL = next_pri;
1896 if (items > 0)
1897 {
1898 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1899 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1900 next_pri = pri;
1901 }
1902 OUTPUT:
1903 RETVAL
1904
1905void
1906aioreq_nice (int nice = 0)
1907 CODE:
1908 nice = next_pri - nice;
1909 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1910 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1911 next_pri = nice;
1912
1913void
1232flush () 1914flush ()
1233 PROTOTYPE:
1234 CODE: 1915 CODE:
1235 while (nreqs) 1916 while (eio_nreqs ())
1236 { 1917 {
1237 poll_wait (); 1918 poll_wait ();
1238 poll_cb (); 1919 poll_cb ();
1239 } 1920 }
1240 1921
1241void 1922int
1242poll() 1923poll ()
1243 PROTOTYPE:
1244 CODE: 1924 CODE:
1245 if (nreqs)
1246 {
1247 poll_wait (); 1925 poll_wait ();
1248 poll_cb (); 1926 RETVAL = poll_cb ();
1249 }
1250
1251int
1252poll_fileno()
1253 PROTOTYPE:
1254 CODE:
1255 RETVAL = respipe [0];
1256 OUTPUT: 1927 OUTPUT:
1257 RETVAL 1928 RETVAL
1258 1929
1259int 1930int
1931poll_fileno ()
1932 CODE:
1933 RETVAL = s_epipe_fd (&respipe);
1934 OUTPUT:
1935 RETVAL
1936
1937int
1260poll_cb(...) 1938poll_cb (...)
1261 PROTOTYPE: 1939 PROTOTYPE:
1262 CODE: 1940 CODE:
1263 RETVAL = poll_cb (); 1941 RETVAL = poll_cb ();
1264 OUTPUT: 1942 OUTPUT:
1265 RETVAL 1943 RETVAL
1266 1944
1267void 1945void
1268poll_wait() 1946poll_wait ()
1269 PROTOTYPE:
1270 CODE: 1947 CODE:
1271 if (nreqs)
1272 poll_wait (); 1948 poll_wait ();
1273 1949
1274int 1950int
1275nreqs() 1951nreqs ()
1276 PROTOTYPE:
1277 CODE: 1952 CODE:
1278 RETVAL = nreqs; 1953 RETVAL = eio_nreqs ();
1279 OUTPUT: 1954 OUTPUT:
1280 RETVAL 1955 RETVAL
1281 1956
1957int
1958nready ()
1959 CODE:
1960 RETVAL = eio_nready ();
1961 OUTPUT:
1962 RETVAL
1963
1964int
1965npending ()
1966 CODE:
1967 RETVAL = eio_npending ();
1968 OUTPUT:
1969 RETVAL
1970
1971int
1972nthreads ()
1973 CODE:
1974 RETVAL = eio_nthreads ();
1975 OUTPUT:
1976 RETVAL
1977
1978int
1979fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1980 CODE:
1981 RETVAL = posix_fadvise (fh, offset, length, advice);
1982 OUTPUT:
1983 RETVAL
1984
1985IV
1986sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1987 CODE:
1988 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1989 OUTPUT:
1990 RETVAL
1991
1992void
1993mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1994 PPCODE:
1995 sv_clear_foreign (scalar);
1996{
1997 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1998 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1999 if (addr == (void *)-1)
2000 XSRETURN_NO;
2001
2002 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2003
2004 if (!(prot & PROT_WRITE))
2005 SvREADONLY_on (scalar);
2006
2007 XSRETURN_YES;
2008}
2009
2010void
2011munmap (SV *scalar)
2012 CODE:
2013 sv_clear_foreign (scalar);
2014
2015int
2016madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2017 ALIAS:
2018 mprotect = 1
2019 CODE:
2020{
2021 STRLEN svlen;
2022 void *addr = SvPVbyte (scalar, svlen);
2023 STRLEN len = SvUV (length);
2024
2025 if (offset < 0)
2026 offset += svlen;
2027
2028 if (offset < 0 || offset > svlen)
2029 croak ("offset outside of scalar");
2030
2031 if (!SvOK (length) || len + offset > svlen)
2032 len = svlen - offset;
2033
2034 addr = (void *)(((intptr_t)addr) + offset);
2035 eio_page_align (&addr, &len);
2036
2037 switch (ix)
2038 {
2039 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2040 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2041 }
2042}
2043 OUTPUT:
2044 RETVAL
2045
2046int
2047munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2048 CODE:
2049{
2050 STRLEN svlen;
2051 void *addr = SvPVbyte (scalar, svlen);
2052 size_t len = SvUV (length);
2053
2054 if (offset < 0)
2055 offset += svlen;
2056
2057 if (offset < 0 || offset > svlen)
2058 croak ("offset outside of scalar");
2059
2060 if (!SvOK (length) || len + offset > svlen)
2061 len = svlen - offset;
2062
2063 addr = (void *)(((intptr_t)addr) + offset);
2064 eio_page_align (&addr, &len);
2065#if _POSIX_MEMLOCK_RANGE
2066 RETVAL = munlock (addr, len);
2067#else
2068 RETVAL = EIO_ENOSYS ();
2069#endif
2070}
2071 OUTPUT:
2072 RETVAL
2073
2074int
2075munlockall ()
2076 CODE:
2077#if _POSIX_MEMLOCK
2078 munlockall ();
2079#else
2080 RETVAL = EIO_ENOSYS ();
2081#endif
2082 OUTPUT:
2083 RETVAL
2084
2085int
2086splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2087 CODE:
2088{
2089#if HAVE_LINUX_SPLICE
2090 loff_t off_in_, off_out_;
2091 RETVAL = splice (
2092 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2093 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2094 length, flags
2095 );
2096#else
2097 RETVAL = EIO_ENOSYS ();
2098#endif
2099}
2100 OUTPUT:
2101 RETVAL
2102
2103int
2104tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2105 CODE:
2106#if HAVE_LINUX_SPLICE
2107 RETVAL = tee (rfh, wfh, length, flags);
2108#else
2109 RETVAL = EIO_ENOSYS ();
2110#endif
2111 OUTPUT:
2112 RETVAL
2113
2114int
2115pipesize (aio_rfd rfh, int new_size = -1)
2116 PROTOTYPE: $;$
2117 CODE:
2118#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2119 if (new_size >= 0)
2120 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2121 else
2122 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2123#else
2124 errno = ENOSYS;
2125 RETVAL = -1;
2126#endif
2127 OUTPUT:
2128 RETVAL
2129
2130void
2131pipe2 (int flags = 0)
2132 PROTOTYPE: ;$
2133 PPCODE:
2134{
2135 int fd[2];
2136 int res;
2137
2138 if (flags)
2139#if HAVE_PIPE2
2140 res = pipe2 (fd, flags);
2141#else
2142 res = (errno = ENOSYS, -1);
2143#endif
2144 else
2145 res = pipe (fd);
2146
2147 if (!res)
2148 {
2149 EXTEND (SP, 2);
2150 PUSHs (newmortalFH (fd[0], O_RDONLY));
2151 PUSHs (newmortalFH (fd[1], O_WRONLY));
2152 }
2153}
2154
2155UV
2156get_fdlimit ()
2157 CODE:
2158#if HAVE_RLIMITS
2159 struct rlimit rl;
2160 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2161 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2162#endif
2163 XSRETURN_UNDEF;
2164 OUTPUT:
2165 RETVAL
2166
2167void
2168min_fdlimit (UV limit = 0x7fffffffU)
2169 CODE:
2170{
2171#if HAVE_RLIMITS
2172 struct rlimit rl;
2173 rlim_t orig_rlim_max;
2174 UV bit;
2175
2176 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2177 goto fail;
2178
2179 if (rl.rlim_cur == RLIM_INFINITY)
2180 XSRETURN_YES;
2181
2182 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2183
2184 if (rl.rlim_cur < limit)
2185 {
2186 rl.rlim_cur = limit;
2187
2188 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2189 rl.rlim_max = rl.rlim_cur;
2190 }
2191
2192 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2193 XSRETURN_YES;
2194
2195 if (errno == EPERM)
2196 {
2197 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2198 /* our limit overflows a system-wide limit */
2199 /* try an adaptive algorithm, but do not lower the hardlimit */
2200 rl.rlim_max = 0;
2201 for (bit = 0x40000000U; bit; bit >>= 1)
2202 {
2203 rl.rlim_max |= bit;
2204 rl.rlim_cur = rl.rlim_max;
2205
2206 /* nevr decrease the hard limit */
2207 if (rl.rlim_max < orig_rlim_max)
2208 break;
2209
2210 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2211 rl.rlim_max &= ~bit; /* too high, remove bit again */
2212 }
2213
2214 /* now, raise the soft limit to the max permitted */
2215 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2216 {
2217 rl.rlim_cur = rl.rlim_max;
2218 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2219 errno = EPERM;
2220 }
2221 }
2222#endif
2223 fail:
2224 XSRETURN_UNDEF;
2225}
2226
2227void _on_next_submit (SV *cb)
2228 CODE:
2229 SvREFCNT_dec (on_next_submit);
2230 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2231
1282PROTOTYPES: DISABLE 2232PROTOTYPES: DISABLE
1283 2233
2234MODULE = IO::AIO PACKAGE = IO::AIO::WD
2235
2236BOOT:
2237{
2238 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2239 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2240}
2241
2242void
2243DESTROY (SV *self)
2244 CODE:
2245{
2246 aio_wd wd = SvAIO_WD (self);
2247#if HAVE_AT
2248 {
2249 SV *callback = &PL_sv_undef;
2250 dREQ; /* clobbers next_pri :/ */
2251 next_pri = req->pri; /* restore next_pri */
2252 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2253 req->type = EIO_WD_CLOSE;
2254 req->wd = wd;
2255 REQ_SEND;
2256 }
2257#else
2258 eio_wd_close_sync (wd);
2259#endif
2260}
2261
1284MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2262MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1285 2263
1286void 2264void
1287cancel (aio_req_ornot req) 2265cancel (aio_req_ornot req)
1288 PROTOTYPE:
1289 CODE: 2266 CODE:
1290 req_cancel (req); 2267 eio_cancel (req);
1291 2268
1292void 2269void
1293cb (aio_req req, SV *callback=&PL_sv_undef) 2270cb (aio_req_ornot req, SV *callback = NO_INIT)
1294 CODE: 2271 PPCODE:
2272{
2273 if (GIMME_V != G_VOID)
2274 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2275
2276 if (items > 1)
2277 {
2278 SV *cb_cv = get_cb (callback);
2279
1295 SvREFCNT_dec (req->callback); 2280 SvREFCNT_dec (req->callback);
1296 req->callback = newSVsv (callback); 2281 req->callback = SvREFCNT_inc (cb_cv);
2282 }
2283}
1297 2284
1298MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2285MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1299 2286
1300void 2287void
1301add (aio_req grp, ...) 2288add (aio_req grp, ...)
1302 PPCODE: 2289 PPCODE:
1303{ 2290{
1304 int i; 2291 int i;
1305 aio_req req;
1306 2292
1307 if (grp->fd == 2) 2293 if (grp->int1 == 2)
1308 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2294 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1309 2295
1310 for (i = 1; i < items; ++i ) 2296 for (i = 1; i < items; ++i )
1311 { 2297 {
2298 aio_req req;
2299
1312 if (GIMME_V != G_VOID) 2300 if (GIMME_V != G_VOID)
1313 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2301 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1314 2302
1315 req = SvAIO_REQ (ST (i)); 2303 req = SvAIO_REQ (ST (i));
1316 2304
1317 if (req) 2305 if (req)
1318 { 2306 eio_grp_add (grp, req);
1319 ++grp->length;
1320 req->grp = grp;
1321
1322 req->grp_prev = 0;
1323 req->grp_next = grp->grp_first;
1324
1325 if (grp->grp_first)
1326 grp->grp_first->grp_prev = req;
1327
1328 grp->grp_first = req;
1329 }
1330 } 2307 }
1331} 2308}
2309
2310void
2311cancel_subs (aio_req_ornot req)
2312 CODE:
2313 req_cancel_subs (req);
1332 2314
1333void 2315void
1334result (aio_req grp, ...) 2316result (aio_req grp, ...)
1335 CODE: 2317 CODE:
1336{ 2318{
1337 int i; 2319 int i;
2320 AV *av;
2321
2322 grp->errorno = errno;
2323
1338 AV *av = newAV (); 2324 av = newAV ();
2325 av_extend (av, items - 1);
1339 2326
1340 for (i = 1; i < items; ++i ) 2327 for (i = 1; i < items; ++i )
1341 av_push (av, newSVsv (ST (i))); 2328 av_push (av, newSVsv (ST (i)));
1342 2329
1343 SvREFCNT_dec (grp->data); 2330 SvREFCNT_dec (grp->sv1);
1344 grp->data = (SV *)av; 2331 grp->sv1 = (SV *)av;
1345} 2332}
1346 2333
1347void 2334void
2335errno (aio_req grp, int errorno = errno)
2336 CODE:
2337 grp->errorno = errorno;
2338
2339void
1348feed_limit (aio_req grp, int limit) 2340limit (aio_req grp, int limit)
1349 CODE: 2341 CODE:
1350 grp->fd2 = limit; 2342 eio_grp_limit (grp, limit);
1351 aio_grp_feed (grp);
1352 2343
1353void 2344void
1354feed (aio_req grp, SV *callback=&PL_sv_undef) 2345feed (aio_req grp, SV *callback = &PL_sv_undef)
1355 CODE: 2346 CODE:
1356{ 2347{
1357 SvREFCNT_dec (grp->fh2); 2348 SvREFCNT_dec (grp->sv2);
1358 grp->fh2 = newSVsv (callback); 2349 grp->sv2 = newSVsv (callback);
2350 grp->feed = aio_grp_feed;
1359 2351
1360 if (grp->fd2 <= 0) 2352 if (grp->int2 <= 0)
1361 grp->fd2 = 2; 2353 grp->int2 = 2;
1362 2354
1363 aio_grp_feed (grp); 2355 eio_grp_limit (grp, grp->int2);
1364} 2356}
1365 2357

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