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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.51 by root, Sun Oct 22 22:14:33 2006 UTC vs.
Revision 1.298 by root, Sun Sep 25 16:35:51 2022 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"
8#include "perliol.h"
7 9
8#include "autoconf/config.h" 10#if !defined mg_findext
9 11# define mg_findext(sv,type,vtbl) mg_find (sv, type)
10#include <pthread.h> 12#endif
11 13
12#include <stddef.h> 14#include <stddef.h>
15#include <stdlib.h>
13#include <errno.h> 16#include <errno.h>
14#include <sys/time.h>
15#include <sys/select.h>
16#include <sys/types.h> 17#include <sys/types.h>
18#include <sys/socket.h>
17#include <sys/stat.h> 19#include <sys/stat.h>
18#include <limits.h> 20#include <limits.h>
19#include <unistd.h>
20#include <fcntl.h> 21#include <fcntl.h>
21#include <signal.h>
22#include <sched.h> 22#include <sched.h>
23 23
24#if HAVE_SENDFILE 24/* perl namespace pollution */
25# if __linux 25#undef VERSION
26
27/* perl stupidly overrides readdir and maybe others */
28/* with thread-unsafe versions, imagine that :( */
29#undef readdir
30#undef opendir
31#undef closedir
32
33#ifdef _WIN32
34
35 // perl overrides all those nice libc functions
36
37 #undef malloc
38 #undef free
39 #undef open
40 #undef read
41 #undef write
42 #undef send
43 #undef recv
44 #undef stat
45 #undef lstat
46 #undef fstat
47 #undef truncate
48 #undef ftruncate
49 #undef open
50 #undef link
51 #undef close
52 #undef unlink
53 #undef mkdir
54 #undef rmdir
55 #undef rename
56 #undef lseek
57 #undef opendir
58 #undef readdir
59 #undef closedir
60 #undef chmod
61 #undef fchmod
62 #undef dup
63 #undef dup2
64 #undef abort
65 #undef pipe
66 #undef utime
67
68 #define EIO_STRUCT_STAT struct _stati64
69 #define EIO_STRUCT_STATI64
70
71#else
72
73 #include <sys/time.h>
26# include <sys/sendfile.h> 74 #include <sys/select.h>
27# elif __freebsd 75 #include <sys/wait.h>
76 #include <unistd.h>
77 #include <utime.h>
78 #include <signal.h>
79
80 #define EIO_STRUCT_STAT Stat_t
81
82#endif
83
84/*****************************************************************************/
85
86#if __GNUC__ >= 3
87# define expect(expr,value) __builtin_expect ((expr),(value))
88#else
89# define expect(expr,value) (expr)
90#endif
91
92#define expect_false(expr) expect ((expr) != 0, 0)
93#define expect_true(expr) expect ((expr) != 0, 1)
94
95/*****************************************************************************/
96
97#include "config.h"
98
99#if HAVE_SYS_MKDEV_H
28# include <sys/socket.h> 100# include <sys/mkdev.h>
101#elif HAVE_SYS_SYSMACROS_H
102# include <sys/sysmacros.h>
103#endif
104
105#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
106# include <sys/mman.h>
107#endif
108
109#if HAVE_SYS_UIO_H
29# include <sys/uio.h> 110# include <sys/uio.h>
30# elif __hpux 111#endif
112
113/* MUST be included before linux/fs.h, as the latter includes
114 * linux/mount.h, which is incompatible to sys/mount.h
115 */
116#if HAVE_SYS_MOUNT_H
31# include <sys/socket.h> 117# include <sys/mount.h>
32# elif __solaris /* not yet */ 118#endif
119
120/* the incompetent fool that created musl keeps __linux__, refuses
121 * to implement any linux standard apis, and also has no way to test
122 * for his broken implementation. don't complain to me if this fails
123 * for you.
124 */
125#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
126# include <linux/fs.h> /* MUST be included after sys/mount.h */
127# ifdef FS_IOC_FIEMAP
128# include <linux/types.h>
129# include <linux/fiemap.h>
130# undef HAVE_FIEMAP
131# define HAVE_FIEMAP 1
132# endif
133#endif
134
135#if HAVE_ST_XTIMENSEC
136# define ATIMENSEC PL_statcache.st_atimensec
137# define MTIMENSEC PL_statcache.st_mtimensec
138# define CTIMENSEC PL_statcache.st_ctimensec
139#elif HAVE_ST_XTIMESPEC
140# define ATIMENSEC PL_statcache.st_atim.tv_nsec
141# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
142# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
143#else
144# define ATIMENSEC 0
145# define MTIMENSEC 0
146# define CTIMENSEC 0
147#endif
148
149#if HAVE_ST_BIRTHTIMENSEC
150# define BTIMESEC PL_statcache.st_birthtime
151# define BTIMENSEC PL_statcache.st_birthtimensec
152#elif HAVE_ST_BIRTHTIMESPEC
153# define BTIMESEC PL_statcache.st_birthtim.tv_sec
154# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
155#else
156# define BTIMESEC 0
157# define BTIMENSEC 0
158#endif
159
160#if HAVE_ST_GEN
161# define ST_GEN PL_statcache.st_gen
162#else
163# define ST_GEN 0
164#endif
165
166#include "schmorp.h"
167
168#if HAVE_EVENTFD
33# include <sys/sendfile.h> 169# include <sys/eventfd.h>
170#endif
171
172#if HAVE_TIMERFD
173# include <sys/timerfd.h>
174#endif
175
176#if HAVE_RLIMITS
177 #include <sys/time.h>
178 #include <sys/resource.h>
179#endif
180
181typedef SV SV8; /* byte-sv, used for argument-checking */
182typedef char *octet_string;
183typedef char *octet_string_ornull;
184typedef int aio_rfd; /* read file desriptor */
185typedef int aio_wfd; /* write file descriptor */
186
187static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
188
189#define EIO_REQ_MEMBERS \
190 SV *callback; \
191 SV *sv1, *sv2; \
192 SV *sv3, *sv4; \
193 STRLEN stroffset; \
194 SV *self;
195
196#define EIO_NO_WRAPPERS 1
197
198#include "libeio/eio.h"
199
200static int req_invoke (eio_req *req);
201#define EIO_FINISH(req) req_invoke (req)
202static void req_destroy (eio_req *grp);
203#define EIO_DESTROY(req) req_destroy (req)
204
205#include "libeio/eio.c"
206
207#if !HAVE_POSIX_FADVISE
208# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
209#endif
210
211#if !HAVE_POSIX_MADVISE
212# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
213#endif
214
215#ifndef MAP_ANONYMOUS
216# ifdef MAP_ANON
217# define MAP_ANONYMOUS MAP_ANON
34# else 218# else
35# error sendfile support requested but not available 219# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
36# endif 220# endif
37#endif 221#endif
38 222
39/* used for struct dirent, AIX doesn't provide it */ 223#ifndef makedev
40#ifndef NAME_MAX 224# define makedev(maj,min) (((maj) << 8) | (min))
41# define NAME_MAX 4096
42#endif 225#endif
226#ifndef major
227# define major(dev) ((dev) >> 8)
228#endif
229#ifndef minor
230# define minor(dev) ((dev) & 0xff)
231#endif
43 232
44#if __ia64 233/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
45# define STACKSIZE 65536 234#ifdef __sun
235# undef PAGESIZE
236#endif
237
238#if PAGESIZE <= 0
239# define PAGESIZE sysconf (_SC_PAGESIZE)
240#endif
241
242/* solaris perl seems to declare a wrong syscall function that clashes with system includes */
243#ifdef __sun
244# undef HAVE_SYSCALL
245#endif
246
247#if HAVE_SYSCALL
248#include <sys/syscall.h>
46#else 249#else
47# define STACKSIZE 8192 250# define syscall(nr,...) (errno = ENOSYS, -1)
251#endif
252
253/*****************************************************************************/
254
255#if !_POSIX_MAPPED_FILES
256# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
257# define munmap(addr,length) EIO_ENOSYS ()
258#endif
259
260#if !_POSIX_MEMORY_PROTECTION
261# define mprotect(addr,len,prot) EIO_ENOSYS ()
262#endif
263
264#if !MREMAP_MAYMOVE
265# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
266#endif
267
268#define FOREIGN_MAGIC PERL_MAGIC_ext
269
270static int ecb_cold
271mmap_free (pTHX_ SV *sv, MAGIC *mg)
272{
273 int old_errno = errno;
274 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
275 errno = old_errno;
276
277 mg->mg_obj = 0; /* just in case */
278
279 SvREADONLY_off (sv);
280
281 if (SvPVX (sv) != mg->mg_ptr)
282 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
283
284 SvCUR_set (sv, 0);
285 SvPVX (sv) = 0;
286 SvOK_off (sv);
287
288 return 0;
289}
290
291static MGVTBL mmap_vtbl = {
292 0, 0, 0, 0, mmap_free
293};
294
295static int ecb_cold
296sysfree_free (pTHX_ SV *sv, MAGIC *mg)
297{
298 free (mg->mg_ptr);
299 mg->mg_obj = 0; /* just in case */
300
301 SvREADONLY_off (sv);
302
303 if (SvPVX (sv) != mg->mg_ptr)
304 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
305
306 SvCUR_set (sv, 0);
307 SvPVX (sv) = 0;
308 SvOK_off (sv);
309
310 return 0;
311}
312
313static MGVTBL sysfree_vtbl = {
314 0, 0, 0, 0, sysfree_free
315};
316
317/*****************************************************************************/
318
319/* helper: set scalar to foreign ptr with custom free */
320ecb_noinline
321static void
322sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
323{
324 sv_force_normal (sv);
325
326 /* we store the length in mg_obj, as namlen is I32 :/ */
327 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
328 ->mg_obj = (SV *)length;
329
330 SvUPGRADE (sv, SVt_PV); /* nop... */
331
332 if (SvLEN (sv))
333 Safefree (SvPVX (sv));
334
335 SvPVX (sv) = (char *)addr;
336 SvCUR_set (sv, length);
337 SvLEN_set (sv, 0);
338 SvPOK_only (sv);
339}
340
341static void
342sv_clear_foreign (SV *sv)
343{
344 /* todo: iterate over magic and only free ours, but of course */
345 /* the perl5porters will call that (correct) behaviour buggy */
346 sv_unmagic (sv, FOREIGN_MAGIC);
347}
348
349/*****************************************************************************/
350
351/* defines all sorts of constants to 0 unless they are already defined */
352/* also provides const_iv_ and const_niv_ macros for them */
353#include "def0.h"
354
355/*****************************************************************************/
356
357static void
358fiemap (eio_req *req)
359{
360 req->result = -1;
361
362#if HAVE_FIEMAP
363 /* assume some c99 */
364 struct fiemap *fiemap = 0;
365 size_t end_offset;
366 int count = req->int3;
367
368 req->flags |= EIO_FLAG_PTR1_FREE;
369
370 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
371 /* increase in fixed steps */
372 if (count < 0)
373 count = 8;
374
375 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
376 errno = ENOMEM;
377 if (!fiemap)
378 return;
379
380 req->ptr1 = fiemap;
381
382 fiemap->fm_start = req->offs;
383 fiemap->fm_length = req->size;
384 fiemap->fm_flags = req->int2;
385 fiemap->fm_extent_count = count;
386
387 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
388 return;
389
390 if (req->int3 >= 0 /* not autosizing */
391 || !fiemap->fm_mapped_extents /* no more extents */
392 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
393 goto done;
394
395 /* else we have to loop -
396 * it would be tempting (actually I tried that first) to just query the
397 * number of extents needed, but linux often feels like not returning all
398 * extents, without telling us it left any out. this complicates
399 * this quite a bit.
400 */
401
402 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
403
404 for (;;)
405 {
406 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
407 char scratch[3072];
408 struct fiemap *incmap = (struct fiemap *)scratch;
409
410 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
411 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
412 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
413 incmap->fm_flags = fiemap->fm_flags;
414 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
415
416 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
417 return;
418
419 if (!incmap->fm_mapped_extents)
420 goto done;
421
422 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
423 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
424 errno = ENOMEM;
425 if (!fiemap)
426 return;
427
428 req->ptr1 = fiemap;
429
430 for (count = 0; count < incmap->fm_mapped_extents; ++count)
431 {
432 struct fiemap_extent *e = incmap->fm_extents + count;
433
434 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
435
436 if (e->fe_logical >= end_offset)
437 goto done;
438
439 if (e->fe_flags & FIEMAP_EXTENT_LAST)
440 goto done;
441
442 }
443 }
444
445done:
446 req->result = 0;
447
448#else
449 errno = ENOSYS;
450#endif
451}
452
453/*****************************************************************************/
454
455static int close_fd; /* dummy fd to close fds via dup2 */
456
457#if HAVE_STATX
458static struct statx stx;
459#define statx_offsetof(member) offsetof (struct statx, member)
460#define eio__statx statx
461#else
462#define statx_offsetof(member) 0
463#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
48#endif 464#endif
49 465
50enum { 466enum {
51 REQ_QUIT, 467 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}; 468};
63 469
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; 470typedef eio_req *aio_req;
92typedef aio_cb *aio_req_ornot; 471typedef eio_req *aio_req_ornot;
472typedef eio_wd aio_wd;
93 473
94static int started, wanted; 474static SV *on_next_submit;
95static volatile int nreqs; 475static int next_pri = EIO_PRI_DEFAULT;
96static int max_outstanding = 1<<30; 476static int max_outstanding;
97static int respipe [2];
98 477
99static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 478static s_epipe respipe;
100static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
101static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
102 479
103static volatile aio_req reqs, reqe; /* queue start, queue end */ 480static void req_destroy (aio_req req);
104static volatile aio_req ress, rese; /* queue start, queue end */
105
106static void req_invoke (aio_req req); 481static void req_cancel (aio_req req);
107static void req_free (aio_req req); 482
483static void
484want_poll (void)
485{
486 /* write a dummy byte to the pipe so fh becomes ready */
487 s_epipe_signal (&respipe);
488}
489
490static void
491done_poll (void)
492{
493 /* read any signals sent by the worker threads */
494 s_epipe_drain (&respipe);
495}
108 496
109/* must be called at most once */ 497/* must be called at most once */
110static SV *req_sv (aio_req req, const char *klass) 498ecb_noinline
499static SV *
500req_sv (aio_req req, HV *stash)
111{ 501{
112 if (!req->self) 502 if (!req->self)
113 { 503 {
114 req->self = (SV *)newHV (); 504 req->self = (SV *)newHV ();
115 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 505 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
116 } 506 }
117 507
118 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 508 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
119} 509}
120 510
121static aio_req SvAIO_REQ (SV *sv) 511static SV *
512newSVaio_wd (aio_wd wd)
122{ 513{
123 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 514 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
515}
516
517ecb_noinline
518static aio_req
519SvAIO_REQ (SV *sv)
520{
521 MAGIC *mg;
522
523 if (!SvROK (sv)
524 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
525 || (SvSTASH (SvRV (sv)) != aio_grp_stash
526 && SvSTASH (SvRV (sv)) != aio_req_stash
527 && !sv_derived_from (sv, "IO::AIO::REQ")))
124 croak ("object of class " AIO_REQ_KLASS " expected"); 528 croak ("object of class IO::AIO::REQ expected");
125 529
126 MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 530 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
127 531
128 return mg ? (aio_req)mg->mg_ptr : 0; 532 return mg ? (aio_req)mg->mg_ptr : 0;
129} 533}
130 534
535static aio_wd
536SvAIO_WD (SV *sv)
537{
538 if (!SvROK (sv)
539 || SvTYPE (SvRV (sv)) != SVt_PVMG
540 || SvSTASH (SvRV (sv)) != aio_wd_stash)
541 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
542
543 return (aio_wd)(long)SvIVX (SvRV (sv));
544}
545
546static SV *
547newmortalFH (int fd, int flags)
548{
549 if (fd < 0)
550 return &PL_sv_undef;
551
552 GV *gv = (GV *)sv_newmortal ();
553 char sym[64];
554 int symlen;
555
556 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
557 gv_init (gv, aio_stash, sym, symlen, 0);
558
559 symlen = snprintf (
560 sym,
561 sizeof (sym),
562 "%s&=%d",
563 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
564 fd
565 );
566
567 return do_open (gv, sym, symlen, 0, 0, 0, 0)
568 ? (SV *)gv : &PL_sv_undef;
569}
570
571static void
131static void aio_grp_feed (aio_req grp) 572aio_grp_feed (aio_req grp)
132{ 573{
133 while (grp->length < grp->fd2) 574 if (grp->sv2 && SvOK (grp->sv2))
134 { 575 {
135 int old_len = grp->length; 576 dSP;
136 577
137 if (grp->fh2 && SvOK (grp->fh2)) 578 ENTER;
579 SAVETMPS;
580 PUSHMARK (SP);
581 XPUSHs (req_sv (grp, aio_grp_stash));
582 PUTBACK;
583 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
584 SPAGAIN;
585 FREETMPS;
586 LEAVE;
587 }
588}
589
590ecb_noinline
591static void
592req_submit (eio_req *req)
593{
594 eio_submit (req);
595
596 if (expect_false (on_next_submit))
597 {
598 dSP;
599 SV *cb = sv_2mortal (on_next_submit);
600
601 on_next_submit = 0;
602
603 PUSHMARK (SP);
604 PUTBACK;
605 call_sv (cb, G_DISCARD | G_EVAL);
606 }
607}
608
609static int
610req_invoke (eio_req *req)
611{
612 if (req->flags & FLAG_SV2_RO_OFF)
613 SvREADONLY_off (req->sv2);
614
615 if (!EIO_CANCELLED (req) && req->callback)
616 {
617 dSP;
618 static SV *sv_result_cache; /* caches the result integer SV */
619 SV *sv_result;
620
621 ENTER;
622 SAVETMPS;
623 PUSHMARK (SP);
624 EXTEND (SP, 1);
625
626 /* do not recreate the result IV from scratch each time */
627 if (expect_true (sv_result_cache))
138 { 628 {
139 dSP; 629 sv_result = sv_result_cache; sv_result_cache = 0;
140 630 SvIV_set (sv_result, req->result);
141 ENTER; 631 SvIOK_only (sv_result);
142 SAVETMPS;
143 PUSHMARK (SP);
144 XPUSHs (req_sv (grp, AIO_GRP_KLASS));
145 PUTBACK;
146 call_sv (grp->fh2, G_VOID | G_EVAL);
147 SPAGAIN;
148 FREETMPS;
149 LEAVE;
150 } 632 }
151 633 else
152 /* stop if no progress has been made */
153 if (old_len == grp->length)
154 { 634 {
155 SvREFCNT_dec (grp->fh2); 635 sv_result = newSViv (req->result);
156 grp->fh2 = 0; 636 SvREADONLY_on (sv_result);
157 break;
158 } 637 }
638
639 switch (req->type)
640 {
641 case EIO_WD_OPEN:
642 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
643 break;
644
645 case EIO_READDIR:
646 {
647 SV *rv = &PL_sv_undef;
648
649 if (req->result >= 0)
650 {
651 int i;
652 char *names = (char *)req->ptr2;
653 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
654 AV *av = newAV ();
655
656 av_extend (av, req->result - 1);
657
658 for (i = 0; i < req->result; ++i)
659 {
660 if (req->int1 & EIO_READDIR_DENTS)
661 {
662 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
663
664 if (req->int1 & EIO_READDIR_CUSTOM2)
665 {
666 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
667 AV *avent = newAV ();
668
669 av_extend (avent, 2);
670
671 if (!sv_type [ent->type])
672 {
673 sv_type [ent->type] = newSViv (ent->type);
674 SvREADONLY_on (sv_type [ent->type]);
675 }
676
677 av_store (avent, 0, namesv);
678 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
679 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
680
681 av_store (av, i, newRV_noinc ((SV *)avent));
682 }
683 else
684 av_store (av, i, namesv);
685
686 ++ent;
687 }
688 else
689 {
690 SV *name = newSVpv (names, 0);
691 av_store (av, i, name);
692 names += SvCUR (name) + 1;
693 }
694 }
695
696 rv = sv_2mortal (newRV_noinc ((SV *)av));
697 }
698
699 PUSHs (rv);
700
701 if (req->int1 & EIO_READDIR_CUSTOM1)
702 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
703 }
704 break;
705
706 case EIO_OPEN:
707 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
708 break;
709
710 case EIO_STATVFS:
711 case EIO_FSTATVFS:
712 {
713 SV *rv = &PL_sv_undef;
714
715#ifndef _WIN32
716 if (req->result >= 0)
717 {
718 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
719 HV *hv = newHV ();
720 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
721 * chooses to make it a struct.
722 */
723 unsigned long fsid = 0;
724 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
725
726 rv = sv_2mortal (newRV_noinc ((SV *)hv));
727
728 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
729 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
730 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
731 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
732 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
733 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
734 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
735 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
736 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
737 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
738 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
739 }
740#endif
741
742 PUSHs (rv);
743 }
744
745 break;
746
747 case EIO_GROUP:
748 req->int1 = 2; /* mark group as finished */
749
750 if (req->sv1)
751 {
752 int i;
753 AV *av = (AV *)req->sv1;
754
755 EXTEND (SP, AvFILL (av) + 1);
756 for (i = 0; i <= AvFILL (av); ++i)
757 PUSHs (*av_fetch (av, i, 0));
758 }
759 break;
760
761 case EIO_NOP:
762 case EIO_BUSY:
763 break;
764
765 case EIO_READLINK:
766 case EIO_REALPATH:
767 if (req->result > 0)
768 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
769 break;
770
771 case EIO_STAT:
772 case EIO_LSTAT:
773 case EIO_FSTAT:
774 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
775
776 if (!(PL_laststatval = req->result))
777 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
778 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
779
780 PUSHs (sv_result);
781 break;
782
783 case EIO_SEEK:
784 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
785 break;
786
787 case EIO_READ:
788 {
789 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
790 *SvEND (req->sv2) = 0;
791 SvPOK_only (req->sv2);
792 SvSETMAGIC (req->sv2);
793 PUSHs (sv_result);
794 }
795 break;
796
797 case EIO_SLURP:
798 {
799 if (req->result >= 0)
800 {
801 /* if length was originally not known, we steal the malloc'ed memory */
802 if (req->flags & EIO_FLAG_PTR2_FREE)
803 {
804 req->flags &= ~EIO_FLAG_PTR2_FREE;
805 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
806 }
807 else
808 {
809 SvCUR_set (req->sv2, req->result);
810 *SvEND (req->sv2) = 0;
811 SvPOK_only (req->sv2);
812 }
813
814 SvSETMAGIC (req->sv2);
815 }
816
817 PUSHs (sv_result);
818 }
819 break;
820
821 case EIO_CUSTOM:
822 if (req->feed == fiemap)
823 {
824#if HAVE_FIEMAP
825 if (!req->result)
826 {
827 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
828
829 if (fiemap->fm_extent_count)
830 {
831 AV *av = newAV ();
832 int i;
833
834 while (fiemap->fm_mapped_extents)
835 {
836 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
837 AV *ext_av = newAV ();
838
839 av_store (ext_av, 3, newSVuv (extent->fe_flags));
840 av_store (ext_av, 2, newSVval64 (extent->fe_length));
841 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
842 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
843
844 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
845 }
846
847 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
848 }
849 else
850 {
851 SvIV_set (sv_result, fiemap->fm_mapped_extents);
852 PUSHs (sv_result);
853 }
854 }
855#endif
856 }
857 else
858 PUSHs (sv_result);
859 break;
860
861#if 0
862 case EIO_CLOSE:
863 PerlIOUnix_refcnt_dec (req->int1);
864 break;
865#endif
866
867 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
868 if (req->result > 0)
869 SvIV_set (sv_result, 0);
870 /* FALLTHROUGH */
871
872 default:
873 PUSHs (sv_result);
874 break;
875 }
876
877 errno = req->errorno;
878
879 PUTBACK;
880 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
881 SPAGAIN;
882
883 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
884 SvREFCNT_dec (sv_result);
885 else
886 sv_result_cache = sv_result;
887
888 FREETMPS;
889 LEAVE;
890
891 PUTBACK;
159 } 892 }
160}
161 893
162static void aio_grp_dec (aio_req grp) 894 return !!SvTRUE (ERRSV);
163{
164 --grp->length;
165
166 /* call feeder, if applicable */
167 aio_grp_feed (grp);
168
169 /* finish, if done */
170 if (!grp->length && grp->fd)
171 {
172 req_invoke (grp);
173 req_free (grp);
174 }
175} 895}
176 896
177static void poll_wait () 897static void
898req_destroy (aio_req req)
178{ 899{
179 if (nreqs && !ress)
180 {
181 fd_set rfd;
182 FD_ZERO(&rfd);
183 FD_SET(respipe [0], &rfd);
184
185 select (respipe [0] + 1, &rfd, 0, 0, 0);
186 }
187}
188
189static void req_invoke (aio_req req)
190{
191 dSP;
192 int errorno = errno;
193
194 if (req->cancelled || !SvOK (req->callback))
195 return;
196
197 errno = req->errorno;
198
199 ENTER;
200 SAVETMPS;
201 PUSHMARK (SP);
202 EXTEND (SP, 1);
203
204 switch (req->type)
205 {
206 case REQ_READDIR:
207 {
208 SV *rv = &PL_sv_undef;
209
210 if (req->result >= 0)
211 {
212 char *buf = req->data2ptr;
213 AV *av = newAV ();
214
215 while (req->result)
216 {
217 SV *sv = newSVpv (buf, 0);
218
219 av_push (av, sv);
220 buf += SvCUR (sv) + 1;
221 req->result--;
222 }
223
224 rv = sv_2mortal (newRV_noinc ((SV *)av));
225 }
226
227 PUSHs (rv);
228 }
229 break;
230
231 case REQ_OPEN:
232 {
233 /* convert fd to fh */
234 SV *fh;
235
236 PUSHs (sv_2mortal (newSViv (req->result)));
237 PUTBACK;
238 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
239 SPAGAIN;
240
241 fh = SvREFCNT_inc (POPs);
242
243 PUSHMARK (SP);
244 XPUSHs (sv_2mortal (fh));
245 }
246 break;
247
248 case REQ_GROUP:
249 req->fd = 2; /* mark group as finished */
250
251 if (req->data)
252 {
253 int i;
254 AV *av = (AV *)req->data;
255
256 EXTEND (SP, AvFILL (av) + 1);
257 for (i = 0; i <= AvFILL (av); ++i)
258 PUSHs (*av_fetch (av, i, 0));
259 }
260 break;
261
262 case REQ_SLEEP:
263 break;
264
265 default:
266 PUSHs (sv_2mortal (newSViv (req->result)));
267 break;
268 }
269
270
271 PUTBACK;
272 call_sv (req->callback, G_VOID | G_EVAL);
273 SPAGAIN;
274
275 FREETMPS;
276 LEAVE;
277
278 errno = errorno;
279
280 if (SvTRUE (ERRSV))
281 {
282 req_free (req);
283 croak (0);
284 }
285}
286
287static void req_free (aio_req req)
288{
289 if (req->grp)
290 {
291 aio_req grp = req->grp;
292
293 /* unlink request */
294 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
295 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
296
297 if (grp->grp_first == req)
298 grp->grp_first = req->grp_next;
299
300 aio_grp_dec (grp);
301 }
302
303 if (req->self) 900 if (req->self)
304 { 901 {
305 sv_unmagic (req->self, PERL_MAGIC_ext); 902 sv_unmagic (req->self, PERL_MAGIC_ext);
306 SvREFCNT_dec (req->self); 903 SvREFCNT_dec (req->self);
307 } 904 }
308 905
309 SvREFCNT_dec (req->data);
310 SvREFCNT_dec (req->fh); 906 SvREFCNT_dec (req->sv1);
311 SvREFCNT_dec (req->fh2); 907 SvREFCNT_dec (req->sv2);
908 SvREFCNT_dec (req->sv3);
909 SvREFCNT_dec (req->sv4);
312 SvREFCNT_dec (req->callback); 910 SvREFCNT_dec (req->callback);
313 Safefree (req->statdata);
314 911
315 if (req->type == REQ_READDIR && req->result >= 0)
316 free (req->data2ptr);
317
318 Safefree (req); 912 free (req);
319} 913}
320 914
321static void req_cancel (aio_req req) 915static void
916req_cancel_subs (aio_req grp)
322{ 917{
323 req->cancelled = 1;
324
325 if (req->type == REQ_GROUP) 918 if (grp->type != EIO_GROUP)
919 return;
920
921 SvREFCNT_dec (grp->sv2);
922 grp->sv2 = 0;
923
924 eio_grp_cancel (grp);
925}
926
927ecb_cold
928static void
929create_respipe (void)
930{
931 if (s_epipe_renew (&respipe))
932 croak ("IO::AIO: unable to initialize result pipe");
933}
934
935static void
936poll_wait (void)
937{
938 while (eio_nreqs ())
326 { 939 {
327 aio_req sub; 940 int size;
328 941
329 for (sub = req->grp_first; sub; sub = sub->grp_next) 942 X_LOCK (EIO_POOL->reslock);
330 req_cancel (sub); 943 size = EIO_POOL->res_queue.size;
944 X_UNLOCK (EIO_POOL->reslock);
945
946 if (size)
947 return;
948
949 etp_maybe_start_thread (EIO_POOL);
950
951 s_epipe_wait (&respipe);
331 } 952 }
332} 953}
333 954
334static int poll_cb () 955static int
956poll_cb (void)
335{ 957{
336 dSP;
337 int count = 0;
338 int do_croak = 0;
339 aio_req req;
340
341 for (;;) 958 for (;;)
342 { 959 {
343 pthread_mutex_lock (&reslock); 960 int res = eio_poll ();
344 req = ress;
345 961
346 if (req) 962 if (res > 0)
963 croak (0);
964
965 if (!max_outstanding || max_outstanding > eio_nreqs ())
966 return res;
967
968 poll_wait ();
969 }
970}
971
972ecb_cold
973static void
974reinit (void)
975{
976 create_respipe ();
977
978 if (eio_init (want_poll, done_poll) < 0)
979 croak ("IO::AIO: unable to initialise eio library");
980}
981
982/*****************************************************************************/
983
984static SV *
985get_cb (SV *cb_sv)
986{
987 SvGETMAGIC (cb_sv);
988 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
989}
990
991ecb_noinline
992static aio_req ecb_noinline
993dreq (SV *callback)
994{
995 SV *cb_cv;
996 aio_req req;
997 int req_pri = next_pri;
998 next_pri = EIO_PRI_DEFAULT;
999
1000 cb_cv = get_cb (callback);
1001
1002 req = calloc (sizeof (*req), 1);
1003 if (!req)
1004 croak ("out of memory during eio_req allocation");
1005
1006 req->callback = SvREFCNT_inc (cb_cv);
1007 req->pri = req_pri;
1008
1009 return req;
1010}
1011
1012#define dREQ \
1013 aio_req req = dreq (callback); \
1014
1015#define REQ_SEND \
1016 PUTBACK; \
1017 req_submit (req); \
1018 SPAGAIN; \
1019 \
1020 if (GIMME_V != G_VOID) \
1021 XPUSHs (req_sv (req, aio_req_stash));
1022
1023/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1024ecb_inline
1025void
1026req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1027{
1028 if (expect_false (SvROK (path)))
1029 {
1030 SV *rv = SvRV (path);
1031 SV *wdob;
1032
1033 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
347 { 1034 {
348 ress = req->next; 1035 path = AvARRAY (rv)[1];
1036 wdob = AvARRAY (rv)[0];
349 1037
350 if (!ress) 1038 if (SvOK (wdob))
351 { 1039 {
352 /* read any signals sent by the worker threads */ 1040 *wd = SvAIO_WD (wdob);
353 char buf [32]; 1041 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
354 while (read (respipe [0], buf, 32) == 32)
355 ;
356
357 rese = 0;
358 } 1042 }
1043 else
1044 *wd = EIO_INVALID_WD;
359 } 1045 }
360 1046 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
361 pthread_mutex_unlock (&reslock);
362
363 if (!req)
364 break;
365
366 --nreqs;
367
368 if (req->type == REQ_QUIT)
369 started--;
370 else if (req->type == REQ_GROUP && req->length)
371 { 1047 {
372 req->fd = 1; /* mark request as delayed */ 1048 *wd = (aio_wd)(long)SvIVX (rv);
373 continue; 1049 *wdsv = SvREFCNT_inc_NN (rv);
1050 *ptr = ".";
1051 return; /* path set to "." */
374 } 1052 }
375 else 1053 else
376 { 1054 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
377 if (req->type == REQ_READ)
378 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
379
380 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
381 SvREADONLY_off (req->data);
382
383 if (req->statdata)
384 {
385 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
386 PL_laststatval = req->result;
387 PL_statcache = *(req->statdata);
388 }
389
390 req_invoke (req);
391
392 count++;
393 }
394
395 req_free (req);
396 } 1055 }
397 1056
398 return count; 1057 *pathsv = newSVsv (path);
1058 *ptr = SvPVbyte_nolen (*pathsv);
399} 1059}
400 1060
401static void *aio_proc(void *arg); 1061ecb_noinline
402 1062static void
403static void start_thread (void) 1063req_set_path1 (aio_req req, SV *path)
404{ 1064{
405 sigset_t fullsigset, oldsigset; 1065 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
406 pthread_t tid;
407 pthread_attr_t attr;
408
409 pthread_attr_init (&attr);
410 pthread_attr_setstacksize (&attr, STACKSIZE);
411 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
412
413 sigfillset (&fullsigset);
414 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
415
416 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
417 started++;
418
419 sigprocmask (SIG_SETMASK, &oldsigset, 0);
420} 1066}
421 1067
422static void req_send (aio_req req) 1068ecb_noinline
1069static void
1070req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
423{ 1071{
424 while (started < wanted && nreqs >= started) 1072 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
425 start_thread ();
426 1073
427 ++nreqs; 1074 switch (SvTYPE (rv))
428
429 pthread_mutex_lock (&reqlock);
430
431 req->next = 0;
432
433 if (reqe)
434 { 1075 {
435 reqe->next = req; 1076 case SVt_PVIO:
436 reqe = req; 1077 case SVt_PVLV:
1078 case SVt_PVGV:
1079 req->type = type_fh;
1080 req->sv1 = newSVsv (fh_or_path);
1081 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1082 break;
1083
1084 default:
1085 req->type = type_path;
1086 req_set_path1 (req, fh_or_path);
1087 break;
437 } 1088 }
438 else
439 reqe = reqs = req;
440
441 pthread_cond_signal (&reqwait);
442 pthread_mutex_unlock (&reqlock);
443
444 if (nreqs > max_outstanding)
445 for (;;)
446 {
447 poll_cb ();
448
449 if (nreqs <= max_outstanding)
450 break;
451
452 poll_wait ();
453 }
454} 1089}
455 1090
456static void end_thread (void) 1091/*****************************************************************************/
457{
458 aio_req req;
459 Newz (0, req, 1, aio_cb);
460 req->type = REQ_QUIT;
461 1092
462 req_send (req); 1093static void
463} 1094ts_set (struct timespec *ts, NV value)
464
465static void min_parallel (int nthreads)
466{ 1095{
467 if (wanted < nthreads) 1096 ts->tv_sec = value;
468 wanted = nthreads; 1097 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
469} 1098}
470 1099
471static void max_parallel (int nthreads) 1100static NV
1101ts_get (const struct timespec *ts)
472{ 1102{
473 int cur = started; 1103 return ts->tv_sec + ts->tv_nsec * 1e-9;
1104}
474 1105
475 if (wanted > nthreads) 1106/*****************************************************************************/
476 wanted = nthreads;
477 1107
478 while (cur > wanted) 1108/* extract a ref-to-array of strings into a temporary c style string vector */
1109static char **
1110extract_stringvec (SV *sv, const char *croakmsg)
1111{
1112 if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)
1113 croak ("%s", croakmsg);
1114
1115 AV *av = (AV *)SvRV (sv);
1116 int i, nelem = av_len (av) + 1;
1117 char **vecp = (char **)SvPVX (sv_2mortal (newSV (sizeof (char *) * (nelem + 1))));
1118
1119 for (i = 0; i < nelem; ++i)
479 { 1120 {
480 end_thread (); 1121 SV **e = av_fetch (av, i, 0);
481 cur--; 1122
1123 if (e && *e)
1124 vecp[i] = SvPVbyte_nolen (*e);
1125 else
1126 vecp[i] = "";
482 } 1127 }
483 1128
484 while (started > wanted) 1129 vecp[nelem] = 0;
485 {
486 poll_wait ();
487 poll_cb ();
488 }
489}
490 1130
491static void create_pipe () 1131 return vecp;
492{
493 if (pipe (respipe))
494 croak ("unable to initialize result pipe");
495
496 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
497 croak ("cannot set result pipe to nonblocking mode");
498
499 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
500 croak ("cannot set result pipe to nonblocking mode");
501} 1132}
502 1133
503/*****************************************************************************/ 1134/*****************************************************************************/
504/* work around various missing functions */
505 1135
506#if !HAVE_PREADWRITE 1136XS(boot_IO__AIO) ecb_cold;
507# define pread aio_pread
508# define pwrite aio_pwrite
509 1137
510/* 1138MODULE = IO::AIO PACKAGE = IO::AIO
511 * make our pread/pwrite safe against themselves, but not against
512 * normal read/write by using a mutex. slows down execution a lot,
513 * but that's your problem, not mine.
514 */
515static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
516 1139
517static ssize_t pread (int fd, void *buf, size_t count, off_t offset) 1140PROTOTYPES: ENABLE
518{
519 ssize_t res;
520 off_t ooffset;
521 1141
522 pthread_mutex_lock (&preadwritelock); 1142BOOT:
523 ooffset = lseek (fd, 0, SEEK_CUR);
524 lseek (fd, offset, SEEK_SET);
525 res = read (fd, buf, count);
526 lseek (fd, ooffset, SEEK_SET);
527 pthread_mutex_unlock (&preadwritelock);
528
529 return res;
530}
531
532static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
533{ 1143{
534 ssize_t res; 1144 static const struct {
535 off_t ooffset; 1145 const char *name;
1146 IV iv;
1147 } *civ, const_iv[] = {
1148# define const_niv(name, value) { # name, (IV) value },
1149# define const_iv(name) { # name, (IV) name },
1150# define const_eio(name) { # name, (IV) EIO_ ## name },
536 1151
537 pthread_mutex_lock (&preadwritelock); 1152 /* you have to re-run ./gendef0 after adding/removing any constants here */
538 ooffset = lseek (fd, 0, SEEK_CUR); 1153 /* the first block can be undef if missing */
539 lseek (fd, offset, SEEK_SET); 1154 const_iv (ENOSYS)
540 res = write (fd, buf, count); 1155 const_iv (EXDEV)
541 lseek (fd, offset, SEEK_SET); 1156 const_iv (EBADR)
542 pthread_mutex_unlock (&preadwritelock);
543 1157
544 return res; 1158 /* for lseek */
545} 1159 const_iv (SEEK_DATA)
546#endif 1160 const_iv (SEEK_HOLE)
547 1161
548#if !HAVE_FDATASYNC 1162 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
549# define fdatasync fsync 1163 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
550#endif 1164 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1165 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1166 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1167 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
551 1168
552#if !HAVE_READAHEAD 1169 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
553# define readahead aio_readahead 1170 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1171 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1172 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1173 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
554 1174
555static ssize_t readahead (int fd, off_t offset, size_t count) 1175 /* the second block will be 0 when missing */
556{ 1176 const_iv (O_ACCMODE)
557 char readahead_buf[4096];
558 1177
559 while (count > 0) 1178 const_iv (O_RDONLY)
560 { 1179 const_iv (O_WRONLY)
561 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); 1180 const_iv (O_RDWR)
1181 const_iv (O_CREAT)
1182 const_iv (O_TRUNC)
1183 const_iv (O_EXCL)
1184 const_iv (O_APPEND)
562 1185
563 pread (fd, readahead_buf, len, offset); 1186 const_iv (O_ASYNC)
564 offset += len; 1187 const_iv (O_DIRECT)
565 count -= len; 1188 const_iv (O_NOATIME)
566 }
567 1189
568 errno = 0; 1190 const_iv (O_CLOEXEC)
569} 1191 const_iv (O_NOCTTY)
570#endif 1192 const_iv (O_NOFOLLOW)
1193 const_iv (O_NONBLOCK)
1194 const_iv (O_EXEC)
1195 const_iv (O_SEARCH)
1196 const_iv (O_DIRECTORY)
1197 const_iv (O_DSYNC)
1198 const_iv (O_RSYNC)
1199 const_iv (O_SYNC)
1200 const_iv (O_PATH)
1201 const_iv (O_TMPFILE)
1202 const_iv (O_TTY_INIT)
571 1203
572#if !HAVE_READDIR_R 1204 const_iv (S_IFIFO)
573# define readdir_r aio_readdir_r 1205 const_iv (S_IFCHR)
1206 const_iv (S_IFBLK)
1207 const_iv (S_IFLNK)
1208 const_iv (S_IFREG)
1209 const_iv (S_IFDIR)
1210 const_iv (S_IFWHT)
1211 const_iv (S_IFSOCK)
1212 const_iv (S_IFMT)
574 1213
575static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; 1214 const_iv (ST_RDONLY)
576 1215 const_iv (ST_NOSUID)
577static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) 1216 const_iv (ST_NODEV)
578{ 1217 const_iv (ST_NOEXEC)
579 struct dirent *e; 1218 const_iv (ST_SYNCHRONOUS)
580 int errorno; 1219 const_iv (ST_MANDLOCK)
1220 const_iv (ST_WRITE)
1221 const_iv (ST_APPEND)
1222 const_iv (ST_IMMUTABLE)
1223 const_iv (ST_NOATIME)
1224 const_iv (ST_NODIRATIME)
1225 const_iv (ST_RELATIME)
581 1226
582 pthread_mutex_lock (&readdirlock); 1227 const_iv (PROT_NONE)
1228 const_iv (PROT_EXEC)
1229 const_iv (PROT_READ)
1230 const_iv (PROT_WRITE)
583 1231
584 e = readdir (dirp); 1232 const_iv (MAP_PRIVATE)
585 errorno = errno; 1233 const_iv (MAP_SHARED)
1234 const_iv (MAP_FIXED)
1235 const_iv (MAP_ANONYMOUS)
586 1236
587 if (e) 1237 /* linuxish */
588 { 1238 const_iv (MAP_LOCKED)
589 *res = ent; 1239 const_iv (MAP_NORESERVE)
590 strcpy (ent->d_name, e->d_name); 1240 const_iv (MAP_POPULATE)
591 } 1241 const_iv (MAP_NONBLOCK)
592 else 1242 const_iv (MAP_GROWSDOWN)
593 *res = 0; 1243 const_iv (MAP_32BIT)
1244 const_iv (MAP_HUGETLB)
1245 const_iv (MAP_STACK)
1246 const_iv (MAP_FIXED_NOREPLACE)
1247 const_iv (MAP_SHARED_VALIDATE)
1248 const_iv (MAP_SYNC)
1249 const_iv (MAP_UNINITIALIZED)
594 1250
595 pthread_mutex_unlock (&readdirlock); 1251 const_iv (MREMAP_MAYMOVE)
1252 const_iv (MREMAP_FIXED)
596 1253
597 errno = errorno; 1254 const_iv (MSG_CMSG_CLOEXEC)
598 return e ? 0 : -1; 1255 const_iv (SOCK_CLOEXEC)
599}
600#endif
601 1256
602/* sendfile always needs emulation */ 1257 const_iv (F_DUPFD_CLOEXEC)
603static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
604{
605 ssize_t res;
606 1258
607 if (!count) 1259 const_iv (F_ADD_SEALS)
608 return 0; 1260 const_iv (F_GET_SEALS)
1261 const_iv (F_SEAL_SEAL)
1262 const_iv (F_SEAL_SHRINK)
1263 const_iv (F_SEAL_GROW)
1264 const_iv (F_SEAL_WRITE)
609 1265
610#if HAVE_SENDFILE 1266 const_iv (F_OFD_GETLK)
611# if __linux 1267 const_iv (F_OFD_SETLK)
612 res = sendfile (ofd, ifd, &offset, count); 1268 const_iv (F_OFD_GETLKW)
613 1269
614# elif __freebsd 1270 const_iv (FIFREEZE)
615 /* 1271 const_iv (FITHAW)
616 * Of course, the freebsd sendfile is a dire hack with no thoughts 1272 const_iv (FITRIM)
617 * wasted on making it similar to other I/O functions. 1273 const_iv (FICLONE)
618 */ 1274 const_iv (FICLONERANGE)
1275 const_iv (FIDEDUPERANGE)
1276
1277 const_iv (FS_IOC_GETFLAGS)
1278 const_iv (FS_IOC_SETFLAGS)
1279 const_iv (FS_IOC_GETVERSION)
1280 const_iv (FS_IOC_SETVERSION)
1281 const_iv (FS_IOC_FIEMAP)
1282 const_iv (FS_IOC_FSGETXATTR)
1283 const_iv (FS_IOC_FSSETXATTR)
1284 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1285 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1286 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1287
1288 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1289
1290 const_iv (FS_SECRM_FL)
1291 const_iv (FS_UNRM_FL)
1292 const_iv (FS_COMPR_FL)
1293 const_iv (FS_SYNC_FL)
1294 const_iv (FS_IMMUTABLE_FL)
1295 const_iv (FS_APPEND_FL)
1296 const_iv (FS_NODUMP_FL)
1297 const_iv (FS_NOATIME_FL)
1298 const_iv (FS_DIRTY_FL)
1299 const_iv (FS_COMPRBLK_FL)
1300 const_iv (FS_NOCOMP_FL)
1301 const_iv (FS_ENCRYPT_FL)
1302 const_iv (FS_BTREE_FL)
1303 const_iv (FS_INDEX_FL)
1304 const_iv (FS_JOURNAL_DATA_FL)
1305 const_iv (FS_NOTAIL_FL)
1306 const_iv (FS_DIRSYNC_FL)
1307 const_iv (FS_TOPDIR_FL)
1308 const_iv (FS_FL_USER_MODIFIABLE)
1309
1310 const_iv (FS_XFLAG_REALTIME)
1311 const_iv (FS_XFLAG_PREALLOC)
1312 const_iv (FS_XFLAG_IMMUTABLE)
1313 const_iv (FS_XFLAG_APPEND)
1314 const_iv (FS_XFLAG_SYNC)
1315 const_iv (FS_XFLAG_NOATIME)
1316 const_iv (FS_XFLAG_NODUMP)
1317 const_iv (FS_XFLAG_RTINHERIT)
1318 const_iv (FS_XFLAG_PROJINHERIT)
1319 const_iv (FS_XFLAG_NOSYMLINKS)
1320 const_iv (FS_XFLAG_EXTSIZE)
1321 const_iv (FS_XFLAG_EXTSZINHERIT)
1322 const_iv (FS_XFLAG_NODEFRAG)
1323 const_iv (FS_XFLAG_FILESTREAM)
1324 const_iv (FS_XFLAG_DAX)
1325 const_iv (FS_XFLAG_HASATTR)
1326
1327 const_iv (FIEMAP_FLAG_SYNC)
1328 const_iv (FIEMAP_FLAG_XATTR)
1329 const_iv (FIEMAP_FLAGS_COMPAT)
1330 const_iv (FIEMAP_EXTENT_LAST)
1331 const_iv (FIEMAP_EXTENT_UNKNOWN)
1332 const_iv (FIEMAP_EXTENT_DELALLOC)
1333 const_iv (FIEMAP_EXTENT_ENCODED)
1334 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1335 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1336 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1337 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1338 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1339 const_iv (FIEMAP_EXTENT_MERGED)
1340 const_iv (FIEMAP_EXTENT_SHARED)
1341
1342 const_iv (SPLICE_F_MOVE)
1343 const_iv (SPLICE_F_NONBLOCK)
1344 const_iv (SPLICE_F_MORE)
1345 const_iv (SPLICE_F_GIFT)
1346
1347 const_iv (EFD_CLOEXEC)
1348 const_iv (EFD_NONBLOCK)
1349 const_iv (EFD_SEMAPHORE)
1350
1351 const_iv (MFD_CLOEXEC)
1352 const_iv (MFD_ALLOW_SEALING)
1353 const_iv (MFD_HUGETLB)
1354 const_iv (MFD_HUGETLB_2MB)
1355 const_iv (MFD_HUGETLB_1GB)
1356
1357 const_iv (CLOCK_REALTIME)
1358 const_iv (CLOCK_MONOTONIC)
1359 const_iv (CLOCK_BOOTTIME)
1360 const_iv (CLOCK_REALTIME_ALARM)
1361 const_iv (CLOCK_BOOTTIME_ALARM)
1362
1363 const_iv (TFD_NONBLOCK)
1364 const_iv (TFD_CLOEXEC)
1365
1366 const_iv (TFD_TIMER_ABSTIME)
1367 const_iv (TFD_TIMER_CANCEL_ON_SET)
1368
1369 const_iv (STATX_TYPE)
1370 const_iv (STATX_MODE)
1371 const_iv (STATX_NLINK)
1372 const_iv (STATX_UID)
1373 const_iv (STATX_GID)
1374 const_iv (STATX_ATIME)
1375 const_iv (STATX_MTIME)
1376 const_iv (STATX_CTIME)
1377 const_iv (STATX_INO)
1378 const_iv (STATX_SIZE)
1379 const_iv (STATX_BLOCKS)
1380 const_iv (STATX_BASIC_STATS)
1381 const_iv (STATX_ALL)
1382 const_iv (STATX_BTIME)
1383 const_iv (STATX_ATTR_COMPRESSED)
1384 const_iv (STATX_ATTR_IMMUTABLE)
1385 const_iv (STATX_ATTR_APPEND)
1386 const_iv (STATX_ATTR_NODUMP)
1387 const_iv (STATX_ATTR_ENCRYPTED)
1388 const_iv (STATX_ATTR_AUTOMOUNT)
1389
1390 const_iv (AT_FDCWD)
1391 const_iv (AT_SYMLINK_NOFOLLOW)
1392 const_iv (AT_EACCESS)
1393 const_iv (AT_REMOVEDIR)
1394 const_iv (AT_SYMLINK_FOLLOW)
1395 const_iv (AT_NO_AUTOMOUNT)
1396 const_iv (AT_EMPTY_PATH)
1397 const_iv (AT_STATX_SYNC_TYPE)
1398 const_iv (AT_STATX_AS_STAT)
1399 const_iv (AT_STATX_FORCE_SYNC)
1400 const_iv (AT_STATX_DONT_SYNC)
1401 const_iv (AT_RECURSIVE)
1402
1403 const_iv (OPEN_TREE_CLONE)
1404
1405 const_iv (FSOPEN_CLOEXEC)
1406
1407 const_iv (FSPICK_CLOEXEC)
1408 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1409 const_iv (FSPICK_NO_AUTOMOUNT)
1410 const_iv (FSPICK_EMPTY_PATH)
1411
1412 const_iv (MOVE_MOUNT_F_SYMLINKS)
1413 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1414 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1415 const_iv (MOVE_MOUNT_T_SYMLINKS)
1416 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1417 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1418
1419 /* waitid */
1420 const_iv (P_PID)
1421 const_iv (P_PIDFD)
1422 const_iv (P_PGID)
1423 const_iv (P_ALL)
1424
1425 const_iv (FSCONFIG_SET_FLAG)
1426 const_iv (FSCONFIG_SET_STRING)
1427 const_iv (FSCONFIG_SET_BINARY)
1428 const_iv (FSCONFIG_SET_PATH)
1429 const_iv (FSCONFIG_SET_PATH_EMPTY)
1430 const_iv (FSCONFIG_SET_FD)
1431 const_iv (FSCONFIG_CMD_CREATE)
1432 const_iv (FSCONFIG_CMD_RECONFIGURE)
1433
1434 const_iv (MOUNT_ATTR_RDONLY)
1435 const_iv (MOUNT_ATTR_NOSUID)
1436 const_iv (MOUNT_ATTR_NODEV)
1437 const_iv (MOUNT_ATTR_NOEXEC)
1438 const_iv (MOUNT_ATTR__ATIME)
1439 const_iv (MOUNT_ATTR_RELATIME)
1440 const_iv (MOUNT_ATTR_NOATIME)
1441 const_iv (MOUNT_ATTR_STRICTATIME)
1442 const_iv (MOUNT_ATTR_NODIRATIME)
1443
1444 /* sys/mount.h */
1445 const_iv (MS_RDONLY)
1446 const_iv (MS_NOSUID)
1447 const_iv (MS_NODEV)
1448 const_iv (MS_NOEXEC)
1449 const_iv (MS_SYNCHRONOUS)
1450 const_iv (MS_REMOUNT)
1451 const_iv (MS_MANDLOCK)
1452 const_iv (MS_DIRSYNC)
1453 const_iv (MS_NOATIME)
1454 const_iv (MS_NODIRATIME)
1455 const_iv (MS_BIND)
1456 const_iv (MS_MOVE)
1457 const_iv (MS_REC)
1458 const_iv (MS_SILENT)
1459 const_iv (MS_POSIXACL)
1460 const_iv (MS_UNBINDABLE)
1461 const_iv (MS_PRIVATE)
1462 const_iv (MS_SLAVE)
1463 const_iv (MS_SHARED)
1464 const_iv (MS_RELATIME)
1465 const_iv (MS_KERNMOUNT)
1466 const_iv (MS_I_VERSION)
1467 const_iv (MS_STRICTATIME)
1468 const_iv (MS_LAZYTIME)
1469 const_iv (MS_ACTIVE)
1470 const_iv (MS_NOUSER)
1471 const_iv (MS_RMT_MASK)
1472 const_iv (MS_MGC_VAL)
1473 const_iv (MS_MGC_MSK)
1474
1475 const_iv (MNT_FORCE)
1476 const_iv (MNT_DETACH)
1477 const_iv (MNT_EXPIRE)
1478 const_iv (UMOUNT_NOFOLLOW)
1479
1480 const_iv (BLKROSET)
1481 const_iv (BLKROGET)
1482 const_iv (BLKRRPART)
1483 const_iv (BLKGETSIZE)
1484 const_iv (BLKFLSBUF)
1485 const_iv (BLKRASET)
1486 const_iv (BLKRAGET)
1487 const_iv (BLKFRASET)
1488 const_iv (BLKFRAGET)
1489 const_iv (BLKSECTSET)
1490 const_iv (BLKSECTGET)
1491 const_iv (BLKSSZGET)
1492 const_iv (BLKBSZGET)
1493 const_iv (BLKBSZSET)
1494 const_iv (BLKGETSIZE64)
1495
1496 /* these are libeio constants, and are independent of gendef0 */
1497 const_eio (SEEK_SET)
1498 const_eio (SEEK_CUR)
1499 const_eio (SEEK_END)
1500
1501 const_eio (MCL_FUTURE)
1502 const_eio (MCL_CURRENT)
1503 const_eio (MCL_ONFAULT)
1504
1505 const_eio (MS_ASYNC)
1506 const_eio (MS_INVALIDATE)
1507 const_eio (MS_SYNC)
1508
1509 const_eio (MT_MODIFY)
1510
1511 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1512 const_eio (SYNC_FILE_RANGE_WRITE)
1513 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1514
1515 const_eio (FALLOC_FL_KEEP_SIZE)
1516 const_eio (FALLOC_FL_PUNCH_HOLE)
1517 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1518 const_eio (FALLOC_FL_ZERO_RANGE)
1519 const_eio (FALLOC_FL_INSERT_RANGE)
1520 const_eio (FALLOC_FL_UNSHARE_RANGE)
1521
1522 const_eio (RENAME_NOREPLACE)
1523 const_eio (RENAME_EXCHANGE)
1524 const_eio (RENAME_WHITEOUT)
1525
1526 const_eio (READDIR_DENTS)
1527 const_eio (READDIR_DIRS_FIRST)
1528 const_eio (READDIR_STAT_ORDER)
1529 const_eio (READDIR_FOUND_UNKNOWN)
1530
1531 const_eio (DT_UNKNOWN)
1532 const_eio (DT_FIFO)
1533 const_eio (DT_CHR)
1534 const_eio (DT_DIR)
1535 const_eio (DT_BLK)
1536 const_eio (DT_REG)
1537 const_eio (DT_LNK)
1538 const_eio (DT_SOCK)
1539 const_eio (DT_WHT)
1540 };
1541
1542 aio_stash = gv_stashpv ("IO::AIO" , 1);
1543 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1544 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1545 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1546
1547 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1548 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1549
1550 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1551
1552 /* allocate dummy pipe fd for aio_close */
619 { 1553 {
620 off_t sbytes; 1554 int pipefd [2];
621 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
622 1555
623 if (res < 0 && sbytes) 1556 if (
624 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ 1557#ifdef _WIN32
625 res = sbytes; 1558 _pipe (pipefd, 1, _O_BINARY) < 0
1559#else
1560 pipe (pipefd) < 0
1561 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1562#endif
1563 || close (pipefd [1]) < 0
1564 )
1565 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1566
1567 close_fd = pipefd [0];
626 } 1568 }
627 1569
628# elif __hpux 1570 reinit ();
629 res = sendfile (ofd, ifd, offset, count, 0, 0); 1571}
630 1572
631# elif __solaris 1573void
1574reinit ()
1575 PROTOTYPE:
1576
1577void
1578max_poll_reqs (unsigned int nreqs)
1579 PROTOTYPE: $
1580 CODE:
1581 eio_set_max_poll_reqs (nreqs);
1582
1583void
1584max_poll_time (double nseconds)
1585 PROTOTYPE: $
1586 CODE:
1587 eio_set_max_poll_time (nseconds);
1588
1589void
1590min_parallel (unsigned int nthreads)
1591 PROTOTYPE: $
1592 CODE:
1593 eio_set_min_parallel (nthreads);
1594
1595void
1596max_parallel (unsigned int nthreads)
1597 PROTOTYPE: $
1598 CODE:
1599 eio_set_max_parallel (nthreads);
1600
1601void
1602max_idle (unsigned int nthreads)
1603 PROTOTYPE: $
1604 CODE:
1605 eio_set_max_idle (nthreads);
1606
1607void
1608idle_timeout (unsigned int seconds)
1609 PROTOTYPE: $
1610 CODE:
1611 eio_set_idle_timeout (seconds);
1612
1613void
1614max_outstanding (unsigned int maxreqs)
1615 PROTOTYPE: $
1616 CODE:
1617 max_outstanding = maxreqs;
1618
1619void
1620aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1621 PPCODE:
1622{
1623 dREQ;
1624
1625 req->type = EIO_WD_OPEN;
1626 req_set_path1 (req, pathname);
1627
1628 REQ_SEND;
1629}
1630
1631void
1632aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1633 PPCODE:
1634{
1635 dREQ;
1636
1637 req->type = EIO_OPEN;
1638 req_set_path1 (req, pathname);
1639 req->int1 = flags;
1640 req->int2 = mode;
1641
1642 REQ_SEND;
1643}
1644
1645void
1646aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1647 ALIAS:
1648 aio_fsync = EIO_FSYNC
1649 aio_fdatasync = EIO_FDATASYNC
1650 aio_syncfs = EIO_SYNCFS
1651 PPCODE:
1652{
1653 int fd = s_fileno_croak (fh, 0);
1654 dREQ;
1655
1656 req->type = ix;
1657 req->sv1 = newSVsv (fh);
1658 req->int1 = fd;
1659
1660 REQ_SEND;
1661}
1662
1663void
1664aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1665 PPCODE:
1666{
1667 int fd = s_fileno_croak (fh, 0);
1668 dREQ;
1669
1670 req->type = EIO_SYNC_FILE_RANGE;
1671 req->sv1 = newSVsv (fh);
1672 req->int1 = fd;
1673 req->offs = offset;
1674 req->size = nbytes;
1675 req->int2 = flags;
1676
1677 REQ_SEND;
1678}
1679
1680void
1681aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1682 PPCODE:
1683{
1684 int fd = s_fileno_croak (fh, 0);
1685 dREQ;
1686
1687 req->type = EIO_FALLOCATE;
1688 req->sv1 = newSVsv (fh);
1689 req->int1 = fd;
1690 req->int2 = mode;
1691 req->offs = offset;
1692 req->size = len;
1693
1694 REQ_SEND;
1695}
1696
1697void
1698aio_close (SV *fh, SV *callback = &PL_sv_undef)
1699 PPCODE:
1700{
1701 int fd = s_fileno_croak (fh, 0);
1702 dREQ;
1703#if 0
1704 /* partially duplicate logic in s_fileno */
1705 SvGETMAGIC (fh);
1706
1707 if (SvROK (fh))
632 { 1708 {
633 struct sendfilevec vec; 1709 fh = SvRV (fh);
634 size_t sbytes; 1710 SvGETMAGIC (fh);
635
636 vec.sfv_fd = ifd;
637 vec.sfv_flag = 0;
638 vec.sfv_off = offset;
639 vec.sfv_len = count;
640
641 res = sendfilev (ofd, &vec, 1, &sbytes);
642
643 if (res < 0 && sbytes)
644 res = sbytes;
645 } 1711 }
646 1712
647# endif 1713 if (SvTYPE (fh) == SVt_PVGV)
648#else
649 res = -1;
650 errno = ENOSYS;
651#endif
652
653 if (res < 0
654 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
655#if __solaris
656 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
657#endif
658 )
659 )
660 {
661 /* emulate sendfile. this is a major pain in the ass */
662 char buf[4096];
663 res = 0;
664
665 while (count)
666 {
667 ssize_t cnt;
668
669 cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
670
671 if (cnt <= 0)
672 {
673 if (cnt && !res) res = -1;
674 break;
675 }
676
677 cnt = write (ofd, buf, cnt);
678
679 if (cnt <= 0)
680 {
681 if (cnt && !res) res = -1;
682 break;
683 }
684
685 offset += cnt;
686 res += cnt;
687 count -= cnt;
688 }
689 }
690
691 return res;
692}
693
694/* read a full directory */
695static int scandir_ (const char *path, void **namesp)
696{
697 DIR *dirp = opendir (path);
698 union
699 {
700 struct dirent d;
701 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
702 } u;
703 struct dirent *entp;
704 char *name, *names;
705 int memlen = 4096;
706 int memofs = 0;
707 int res = 0;
708 int errorno;
709
710 if (!dirp)
711 return -1;
712
713 names = malloc (memlen);
714
715 for (;;)
716 {
717 errno = 0, readdir_r (dirp, &u.d, &entp);
718
719 if (!entp)
720 break;
721
722 name = entp->d_name;
723
724 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
725 {
726 int len = strlen (name) + 1;
727
728 res++;
729
730 while (memofs + len > memlen)
731 {
732 memlen *= 2;
733 names = realloc (names, memlen);
734 if (!names)
735 break;
736 }
737
738 memcpy (names + memofs, name, len);
739 memofs += len;
740 }
741 }
742
743 errorno = errno;
744 closedir (dirp);
745
746 if (errorno)
747 {
748 free (names);
749 errno = errorno;
750 res = -1;
751 }
752
753 *namesp = (void *)names;
754 return res;
755}
756
757/*****************************************************************************/
758
759static void *aio_proc (void *thr_arg)
760{
761 aio_req req;
762 int type;
763
764 do
765 {
766 pthread_mutex_lock (&reqlock);
767
768 for (;;)
769 {
770 req = reqs;
771
772 if (reqs)
773 {
774 reqs = reqs->next;
775 if (!reqs) reqe = 0;
776 }
777
778 if (req)
779 break;
780
781 pthread_cond_wait (&reqwait, &reqlock);
782 }
783
784 pthread_mutex_unlock (&reqlock);
785
786 errno = 0; /* strictly unnecessary */
787
788 if (!req->cancelled)
789 switch (type = req->type) /* remember type for QUIT check */
790 { 1714 {
791 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 1715 /* perl filehandle */
792 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 1716 PerlIOUnix_refcnt_inc (fd);
1717 do_close ((GV *)fh, 1);
793 1718
794 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 1719 req->type = EIO_CLOSE;
795 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; 1720 req->int1 = fd;
796 1721 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
797 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
798 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
799 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
800
801 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
802 case REQ_CLOSE: req->result = close (req->fd); break;
803 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
804 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
805 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
806 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
807 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
808
809 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
810 case REQ_FSYNC: req->result = fsync (req->fd); break;
811 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
812
813 case REQ_SLEEP:
814 {
815 struct timeval tv;
816
817 tv.tv_sec = req->fd;
818 tv.tv_usec = req->fd2;
819
820 req->result = select (0, 0, 0, 0, &tv);
821 }
822
823 case REQ_QUIT:
824 break;
825
826 default:
827 req->result = ENOSYS;
828 break;
829 } 1722 }
830
831 req->errorno = errno;
832
833 pthread_mutex_lock (&reslock);
834
835 req->next = 0;
836
837 printf ("queue rese %p\n", rese);//D
838 if (rese)
839 {
840 rese->next = req;
841 rese = req;
842 }
843 else 1723 else
1724#endif
844 { 1725 {
845 rese = ress = req; 1726 /* fd number */
846 1727 req->type = EIO_DUP2;
847 /* write a dummy byte to the pipe so fh becomes ready */ 1728 req->int1 = close_fd;
848 write (respipe [1], &respipe, 1); 1729 req->sv2 = newSVsv (fh);
1730 req->int2 = fd;
849 } 1731 }
850 1732
851 pthread_mutex_unlock (&reslock); 1733 REQ_SEND;
852 }
853 while (type != REQ_QUIT);
854
855 return 0;
856} 1734}
857 1735
858/*****************************************************************************/
859
860static void atfork_prepare (void)
861{
862 pthread_mutex_lock (&reqlock);
863 pthread_mutex_lock (&reslock);
864#if !HAVE_PREADWRITE
865 pthread_mutex_lock (&preadwritelock);
866#endif
867#if !HAVE_READDIR_R
868 pthread_mutex_lock (&readdirlock);
869#endif
870}
871
872static void atfork_parent (void)
873{
874#if !HAVE_READDIR_R
875 pthread_mutex_unlock (&readdirlock);
876#endif
877#if !HAVE_PREADWRITE
878 pthread_mutex_unlock (&preadwritelock);
879#endif
880 pthread_mutex_unlock (&reslock);
881 pthread_mutex_unlock (&reqlock);
882}
883
884static void atfork_child (void)
885{
886 aio_req prv;
887
888 started = 0;
889
890 while (reqs)
891 {
892 prv = reqs;
893 reqs = prv->next;
894 req_free (prv);
895 }
896
897 reqs = reqe = 0;
898
899 while (ress)
900 {
901 prv = ress;
902 ress = prv->next;
903 req_free (prv);
904 }
905
906 ress = rese = 0;
907
908 close (respipe [0]);
909 close (respipe [1]);
910 create_pipe ();
911
912 atfork_parent ();
913}
914
915#define dREQ \
916 aio_req req; \
917 \
918 if (SvOK (callback) && !SvROK (callback)) \
919 croak ("callback must be undef or of reference type"); \
920 \
921 Newz (0, req, 1, aio_cb); \
922 if (!req) \
923 croak ("out of memory during aio_req allocation"); \
924 \
925 req->callback = newSVsv (callback)
926
927#define REQ_SEND \
928 req_send (req); \
929 \
930 if (GIMME_V != G_VOID) \
931 XPUSHs (req_sv (req, AIO_REQ_KLASS));
932
933MODULE = IO::AIO PACKAGE = IO::AIO
934
935PROTOTYPES: ENABLE
936
937BOOT:
938{
939 HV *stash = gv_stashpv ("IO::AIO", 1);
940 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
941 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
942 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
943
944 create_pipe ();
945 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
946}
947
948void 1736void
949min_parallel (nthreads) 1737aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
950 int nthreads
951 PROTOTYPE: $
952
953void
954max_parallel (nthreads)
955 int nthreads
956 PROTOTYPE: $
957
958int
959max_outstanding (nreqs)
960 int nreqs
961 PROTOTYPE: $
962 CODE: 1738 PPCODE:
963 RETVAL = max_outstanding;
964 max_outstanding = nreqs;
965
966void
967aio_open (pathname,flags,mode,callback=&PL_sv_undef)
968 SV * pathname
969 int flags
970 int mode
971 SV * callback
972 PROTOTYPE: $$$;$
973 PPCODE:
974{ 1739{
1740 int fd = s_fileno_croak (fh, 0);
975 dREQ; 1741 dREQ;
976 1742
977 req->type = REQ_OPEN; 1743 req->type = EIO_SEEK;
978 req->data = newSVsv (pathname); 1744 req->sv1 = newSVsv (fh);
979 req->dataptr = SvPVbyte_nolen (req->data); 1745 req->int1 = fd;
980 req->fd = flags; 1746 req->offs = SvVAL64 (offset);
981 req->mode = mode; 1747 req->int2 = whence;
982 1748
983 REQ_SEND; 1749 REQ_SEND;
984} 1750}
985 1751
986void 1752void
987aio_close (fh,callback=&PL_sv_undef) 1753aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
988 SV * fh
989 SV * callback
990 PROTOTYPE: $;$
991 ALIAS: 1754 ALIAS:
992 aio_close = REQ_CLOSE
993 aio_fsync = REQ_FSYNC
994 aio_fdatasync = REQ_FDATASYNC
995 PPCODE:
996{
997 dREQ;
998
999 req->type = ix;
1000 req->fh = newSVsv (fh);
1001 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1002
1003 REQ_SEND (req);
1004}
1005
1006void
1007aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1008 SV * fh
1009 UV offset
1010 UV length
1011 SV * data
1012 UV dataoffset
1013 SV * callback
1014 ALIAS:
1015 aio_read = REQ_READ 1755 aio_read = EIO_READ
1016 aio_write = REQ_WRITE 1756 aio_write = EIO_WRITE
1017 PROTOTYPE: $$$$$;$
1018 PPCODE: 1757 PPCODE:
1019{ 1758{
1020 aio_req req;
1021 STRLEN svlen; 1759 STRLEN svlen;
1760 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1022 char *svptr = SvPVbyte (data, svlen); 1761 char *svptr = SvPVbyte (data, svlen);
1023 1762 UV len = SvUV (length);
1024 SvUPGRADE (data, SVt_PV);
1025 SvPOK_on (data);
1026 1763
1027 if (dataoffset < 0) 1764 if (dataoffset < 0)
1028 dataoffset += svlen; 1765 dataoffset += svlen;
1029 1766
1030 if (dataoffset < 0 || dataoffset > svlen) 1767 if (dataoffset < 0 || dataoffset > svlen)
1031 croak ("data offset outside of string"); 1768 croak ("dataoffset outside of data scalar");
1032 1769
1033 if (ix == REQ_WRITE) 1770 if (ix == EIO_WRITE)
1034 { 1771 {
1035 /* write: check length and adjust. */ 1772 /* write: check length and adjust. */
1036 if (length < 0 || length + dataoffset > svlen) 1773 if (!SvOK (length) || len + dataoffset > svlen)
1037 length = svlen - dataoffset; 1774 len = svlen - dataoffset;
1038 } 1775 }
1039 else 1776 else
1040 { 1777 {
1041 /* read: grow scalar as necessary */ 1778 /* read: check type and grow scalar as necessary */
1779 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1042 svptr = SvGROW (data, length + dataoffset); 1780 svptr = sv_grow (data, len + dataoffset + 1);
1781 else if (SvCUR (data) < len + dataoffset)
1782 croak ("length + dataoffset outside of scalar, and cannot grow");
1043 } 1783 }
1044
1045 if (length < 0)
1046 croak ("length must not be negative");
1047 1784
1048 { 1785 {
1049 dREQ; 1786 dREQ;
1050 1787
1051 req->type = ix; 1788 req->type = ix;
1052 req->fh = newSVsv (fh); 1789 req->sv1 = newSVsv (fh);
1053 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1790 req->int1 = fd;
1054 : IoOFP (sv_2io (fh))); 1791 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1055 req->offset = offset; 1792 req->size = len;
1056 req->length = length;
1057 req->data = SvREFCNT_inc (data); 1793 req->sv2 = SvREFCNT_inc (data);
1058 req->dataptr = (char *)svptr + dataoffset; 1794 req->ptr2 = (char *)svptr + dataoffset;
1795 req->stroffset = dataoffset;
1059 1796
1060 if (!SvREADONLY (data)) 1797 if (!SvREADONLY (data))
1061 { 1798 {
1062 SvREADONLY_on (data); 1799 SvREADONLY_on (data);
1063 req->data2ptr = (void *)data; 1800 req->flags |= FLAG_SV2_RO_OFF;
1064 } 1801 }
1065 1802
1066 REQ_SEND; 1803 REQ_SEND;
1067 } 1804 }
1068} 1805}
1069 1806
1070void 1807void
1071aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1808aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1072 SV * out_fh 1809 ALIAS:
1073 SV * in_fh 1810 aio_ioctl = EIO_IOCTL
1074 UV in_offset 1811 aio_fcntl = EIO_FCNTL
1075 UV length
1076 SV * callback
1077 PROTOTYPE: $$$$;$
1078 PPCODE: 1812 PPCODE:
1079{ 1813{
1080 dREQ; 1814 int fd = s_fileno_croak (fh, 0);
1815 char *svptr;
1081 1816
1082 req->type = REQ_SENDFILE; 1817 if (SvPOK (arg) || !SvNIOK (arg))
1083 req->fh = newSVsv (out_fh);
1084 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1085 req->fh2 = newSVsv (in_fh);
1086 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1087 req->offset = in_offset;
1088 req->length = length;
1089
1090 REQ_SEND;
1091}
1092
1093void
1094aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1095 SV * fh
1096 UV offset
1097 IV length
1098 SV * callback
1099 PROTOTYPE: $$$;$
1100 PPCODE:
1101{
1102 dREQ;
1103
1104 req->type = REQ_READAHEAD;
1105 req->fh = newSVsv (fh);
1106 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1107 req->offset = offset;
1108 req->length = length;
1109
1110 REQ_SEND;
1111}
1112
1113void
1114aio_stat (fh_or_path,callback=&PL_sv_undef)
1115 SV * fh_or_path
1116 SV * callback
1117 ALIAS:
1118 aio_stat = REQ_STAT
1119 aio_lstat = REQ_LSTAT
1120 PPCODE:
1121{
1122 dREQ;
1123
1124 New (0, req->statdata, 1, Stat_t);
1125 if (!req->statdata)
1126 { 1818 {
1127 req_free (req); 1819 STRLEN svlen;
1128 croak ("out of memory during aio_req->statdata allocation"); 1820 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1129 } 1821#ifdef IOCPARM_LEN
1822 STRLEN need = IOCPARM_LEN (request);
1823#else
1824 STRLEN need = 256;
1825#endif
1130 1826
1131 if (SvPOK (fh_or_path)) 1827 if (svlen < need)
1132 { 1828 svptr = SvGROW (arg, need);
1133 req->type = ix;
1134 req->data = newSVsv (fh_or_path);
1135 req->dataptr = SvPVbyte_nolen (req->data);
1136 } 1829 }
1137 else 1830 else
1831 svptr = (char *)SvIV (arg);
1832
1138 { 1833 {
1834 dREQ;
1835
1139 req->type = REQ_FSTAT; 1836 req->type = ix;
1140 req->fh = newSVsv (fh_or_path); 1837 req->sv1 = newSVsv (fh);
1141 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1838 req->int1 = fd;
1839 req->int2 = (long)request;
1840 req->sv2 = SvREFCNT_inc (arg);
1841 req->ptr2 = svptr;
1842
1843 REQ_SEND;
1142 } 1844 }
1845}
1846
1847void
1848aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1849 ALIAS:
1850 aio_readlink = EIO_READLINK
1851 aio_realpath = EIO_REALPATH
1852 PPCODE:
1853{
1854 dREQ;
1855
1856 req->type = ix;
1857 req_set_path1 (req, pathname);
1143 1858
1144 REQ_SEND; 1859 REQ_SEND;
1145} 1860}
1146 1861
1147void 1862void
1148aio_unlink (pathname,callback=&PL_sv_undef) 1863aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1149 SV * pathname 1864 PPCODE:
1150 SV * callback 1865{
1866 int ifd = s_fileno_croak (in_fh , 0);
1867 int ofd = s_fileno_croak (out_fh, 1);
1868 dREQ;
1869
1870 req->type = EIO_SENDFILE;
1871 req->sv1 = newSVsv (out_fh);
1872 req->int1 = ofd;
1873 req->sv2 = newSVsv (in_fh);
1874 req->int2 = ifd;
1875 req->offs = in_offset;
1876 req->size = length;
1877
1878 REQ_SEND;
1879}
1880
1881void
1882aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1883 PPCODE:
1884{
1885 int fd = s_fileno_croak (fh, 0);
1886 dREQ;
1887
1888 req->type = EIO_READAHEAD;
1889 req->sv1 = newSVsv (fh);
1890 req->int1 = fd;
1891 req->offs = offset;
1892 req->size = length;
1893
1894 REQ_SEND;
1895}
1896
1897void
1898aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1151 ALIAS: 1899 ALIAS:
1900 aio_stat = EIO_STAT
1901 aio_lstat = EIO_LSTAT
1902 aio_statvfs = EIO_STATVFS
1903 PPCODE:
1904{
1905 dREQ;
1906
1907 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1908
1909 REQ_SEND;
1910}
1911
1912void
1913st_xtime ()
1914 ALIAS:
1915 st_atime = 0x01
1916 st_mtime = 0x02
1917 st_ctime = 0x04
1918 st_btime = 0x08
1919 st_xtime = 0x0f
1920 PPCODE:
1921 EXTEND (SP, 4);
1922 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1923 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1924 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1925 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1926
1927void
1928st_xtimensec ()
1929 ALIAS:
1930 st_atimensec = 0x01
1931 st_mtimensec = 0x02
1932 st_ctimensec = 0x04
1933 st_btimensec = 0x08
1934 st_xtimensec = 0x0f
1935 st_btimesec = 0x10
1936 st_gen = 0x20
1937 PPCODE:
1938 EXTEND (SP, 4);
1939 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1940 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1941 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1942 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1943 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1944 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1945
1946UV
1947major (UV dev)
1948 ALIAS:
1949 minor = 1
1950 CODE:
1951 RETVAL = ix ? minor (dev) : major (dev);
1952 OUTPUT:
1953 RETVAL
1954
1955UV
1956makedev (UV maj, UV min)
1957 CODE:
1958 RETVAL = makedev (maj, min);
1959 OUTPUT:
1960 RETVAL
1961
1962void
1963aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1964 PPCODE:
1965{
1966 dREQ;
1967
1968 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1969 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1970 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1971
1972 REQ_SEND;
1973}
1974
1975void
1976aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1977 PPCODE:
1978{
1979 dREQ;
1980
1981 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1982 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1983
1984 REQ_SEND;
1985}
1986
1987void
1988aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1989 PPCODE:
1990{
1991 dREQ;
1992
1993 req->int2 = mode;
1994 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1995
1996 REQ_SEND;
1997}
1998
1999void
2000aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
2001 PPCODE:
2002{
2003 dREQ;
2004
2005 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
2006 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
2007 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
2008
2009 REQ_SEND;
2010}
2011
2012void
2013aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
2014 PPCODE:
2015{
2016 dREQ;
2017
2018 req->type = EIO_READDIR;
2019 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
2020
2021 if (flags & EIO_READDIR_DENTS)
2022 req->int1 |= EIO_READDIR_CUSTOM2;
2023
2024 req_set_path1 (req, pathname);
2025
2026 REQ_SEND;
2027}
2028
2029void
2030aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
2031 PPCODE:
2032{
2033 dREQ;
2034
2035 req->type = EIO_MKDIR;
2036 req->int2 = mode;
2037 req_set_path1 (req, pathname);
2038
2039 REQ_SEND;
2040}
2041
2042void
2043aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
2044 ALIAS:
1152 aio_unlink = REQ_UNLINK 2045 aio_unlink = EIO_UNLINK
1153 aio_rmdir = REQ_RMDIR 2046 aio_rmdir = EIO_RMDIR
1154 aio_readdir = REQ_READDIR 2047 aio_readdir = EIO_READDIR
1155 PPCODE: 2048 PPCODE:
1156{ 2049{
1157 dREQ; 2050 dREQ;
1158 2051
1159 req->type = ix; 2052 req->type = ix;
1160 req->data = newSVsv (pathname); 2053 req_set_path1 (req, pathname);
1161 req->dataptr = SvPVbyte_nolen (req->data); 2054
1162
1163 REQ_SEND; 2055 REQ_SEND;
1164} 2056}
1165 2057
1166void 2058void
1167aio_link (oldpath,newpath,callback=&PL_sv_undef) 2059aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1168 SV * oldpath
1169 SV * newpath
1170 SV * callback
1171 ALIAS: 2060 ALIAS:
1172 aio_link = REQ_LINK 2061 aio_link = EIO_LINK
1173 aio_symlink = REQ_SYMLINK 2062 aio_symlink = EIO_SYMLINK
1174 aio_rename = REQ_RENAME 2063 aio_rename = EIO_RENAME
1175 PPCODE: 2064 PPCODE:
1176{ 2065{
2066 eio_wd wd2 = 0;
1177 dREQ; 2067 dREQ;
1178 2068
1179 req->type = ix; 2069 req->type = ix;
1180 req->fh = newSVsv (oldpath); 2070 req_set_path1 (req, oldpath);
1181 req->data2ptr = SvPVbyte_nolen (req->fh); 2071 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1182 req->data = newSVsv (newpath); 2072 req->int3 = (long)wd2;
1183 req->dataptr = SvPVbyte_nolen (req->data);
1184 2073
1185 REQ_SEND; 2074 REQ_SEND;
1186} 2075}
1187 2076
1188void 2077void
1189aio_sleep (delay,callback=&PL_sv_undef) 2078aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1190 double delay
1191 SV * callback
1192 PPCODE: 2079 PPCODE:
1193{ 2080{
2081 eio_wd wd2 = 0;
1194 dREQ; 2082 dREQ;
1195 2083
1196 req->type = REQ_SLEEP; 2084 req->type = EIO_RENAME;
1197 req->fd = delay < 0. ? 0 : delay; 2085 req_set_path1 (req, oldpath);
1198 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 2086 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1199 2087 req->int2 = flags;
2088 req->int3 = (long)wd2;
2089
1200 REQ_SEND; 2090 REQ_SEND;
1201} 2091}
1202 2092
1203void 2093void
1204aio_group (callback=&PL_sv_undef) 2094aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1205 SV * callback 2095 PPCODE:
1206 PROTOTYPE: ;$ 2096{
2097 dREQ;
2098
2099 req->type = EIO_MKNOD;
2100 req->int2 = (mode_t)mode;
2101 req->offs = dev;
2102 req_set_path1 (req, pathname);
2103
2104 REQ_SEND;
2105}
2106
2107void
2108aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
2109 ALIAS:
2110 aio_mtouch = EIO_MTOUCH
2111 aio_msync = EIO_MSYNC
1207 PPCODE: 2112 PPCODE:
1208{ 2113{
2114 STRLEN svlen;
2115 char *svptr = SvPVbyte (data, svlen);
2116 UV len = SvUV (length);
2117
2118 if (flags < 0)
2119 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
2120
2121 if (offset < 0)
2122 offset += svlen;
2123
2124 if (offset < 0 || offset > svlen)
2125 croak ("offset outside of scalar");
2126
2127 if (!SvOK (length) || len + offset > svlen)
2128 len = svlen - offset;
2129
2130 {
2131 dREQ;
2132
2133 req->type = ix;
2134 req->sv2 = SvREFCNT_inc (data);
2135 req->ptr2 = (char *)svptr + offset;
2136 req->size = len;
2137 req->int1 = flags;
2138
2139 REQ_SEND;
2140 }
2141}
2142
2143void
2144aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2145 PPCODE:
2146{
2147 STRLEN svlen;
2148 char *svptr = SvPVbyte (data, svlen);
2149 UV len = SvUV (length);
2150
2151 if (offset < 0)
2152 offset += svlen;
2153
2154 if (offset < 0 || offset > svlen)
2155 croak ("offset outside of scalar");
2156
2157 if (!SvOK (length) || len + offset > svlen)
2158 len = svlen - offset;
2159
2160 {
2161 dREQ;
2162
2163 req->type = EIO_MLOCK;
2164 req->sv2 = SvREFCNT_inc (data);
2165 req->ptr2 = (char *)svptr + offset;
2166 req->size = len;
2167
2168 REQ_SEND;
2169 }
2170}
2171
2172void
2173aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2174 PPCODE:
2175{
2176 dREQ;
2177
2178 req->type = EIO_MLOCKALL;
2179 req->int1 = flags;
2180
2181 REQ_SEND;
2182}
2183
2184void
2185aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2186 PPCODE:
2187{
2188 int fd = s_fileno_croak (fh, 0);
1209 dREQ; 2189 dREQ;
2190
2191 req->type = EIO_CUSTOM;
2192 req->sv1 = newSVsv (fh);
2193 req->int1 = fd;
2194
2195 req->feed = fiemap;
2196#if HAVE_FIEMAP
2197 /* keep our fingers crossed that the next two types are 64 bit */
2198 req->offs = start;
2199 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2200 req->int2 = flags;
2201 req->int3 = SvOK (count) ? SvIV (count) : -1;
2202#endif
2203
2204 REQ_SEND;
2205}
2206
2207void
2208aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
2209 PPCODE:
2210{
2211 char *svptr = 0;
2212
2213 sv_clear_foreign (data);
2214
2215 if (length) /* known length, directly read into scalar */
2216 {
2217 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2218 svptr = sv_grow (data, length + 1);
2219 else if (SvCUR (data) < length)
2220 croak ("length outside of scalar, and cannot grow");
2221 else
2222 svptr = SvPVbyte_nolen (data);
2223 }
2224
2225 {
2226 dREQ;
2227
2228 req->type = EIO_SLURP;
2229 req_set_path1 (req, pathname);
2230 req->offs = offset;
2231 req->size = length;
2232 req->sv2 = SvREFCNT_inc (data);
2233 req->ptr2 = svptr;
2234
2235 if (!SvREADONLY (data))
2236 {
2237 SvREADONLY_on (data);
2238 req->flags |= FLAG_SV2_RO_OFF;
2239 }
2240
2241 REQ_SEND;
2242 }
2243}
2244
2245void
2246aio_busy (double delay, SV *callback = &PL_sv_undef)
2247 PPCODE:
2248{
2249 dREQ;
2250
2251 req->type = EIO_BUSY;
2252 req->nv1 = delay < 0. ? 0. : delay;
2253
2254 REQ_SEND;
2255}
2256
2257void
2258aio_group (SV *callback = &PL_sv_undef)
2259 PPCODE:
2260{
2261 dREQ;
2262
1210 req->type = REQ_GROUP; 2263 req->type = EIO_GROUP;
2264
2265 PUTBACK;
1211 req_send (req); 2266 req_submit (req);
2267 SPAGAIN;
2268
1212 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2269 XPUSHs (req_sv (req, aio_grp_stash));
1213} 2270}
2271
2272void
2273aio_nop (SV *callback = &PL_sv_undef)
2274 ALIAS:
2275 aio_nop = EIO_NOP
2276 aio_sync = EIO_SYNC
2277 PPCODE:
2278{
2279 dREQ;
2280
2281 req->type = ix;
2282
2283 REQ_SEND;
2284}
2285
2286int
2287aioreq_pri (int pri = NO_INIT)
2288 CODE:
2289 RETVAL = next_pri;
2290 if (items > 0)
2291 {
2292 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
2293 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
2294 next_pri = pri;
2295 }
2296 OUTPUT:
2297 RETVAL
2298
2299void
2300aioreq_nice (int nice = 0)
2301 CODE:
2302 nice = next_pri - nice;
2303 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
2304 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
2305 next_pri = nice;
1214 2306
1215void 2307void
1216flush () 2308flush ()
1217 PROTOTYPE:
1218 CODE: 2309 CODE:
1219 while (nreqs) 2310 while (eio_nreqs ())
1220 { 2311 {
1221 poll_wait (); 2312 poll_wait ();
1222 poll_cb (); 2313 poll_cb ();
1223 } 2314 }
1224 2315
1225void 2316int
1226poll() 2317poll ()
1227 PROTOTYPE:
1228 CODE: 2318 CODE:
1229 if (nreqs)
1230 {
1231 poll_wait (); 2319 poll_wait ();
1232 poll_cb (); 2320 RETVAL = poll_cb ();
1233 }
1234
1235int
1236poll_fileno()
1237 PROTOTYPE:
1238 CODE:
1239 RETVAL = respipe [0];
1240 OUTPUT: 2321 OUTPUT:
1241 RETVAL 2322 RETVAL
1242 2323
1243int 2324int
2325poll_fileno ()
2326 CODE:
2327 RETVAL = s_epipe_fd (&respipe);
2328 OUTPUT:
2329 RETVAL
2330
2331int
1244poll_cb(...) 2332poll_cb (...)
1245 PROTOTYPE: 2333 PROTOTYPE:
1246 CODE: 2334 CODE:
1247 RETVAL = poll_cb (); 2335 RETVAL = poll_cb ();
1248 OUTPUT: 2336 OUTPUT:
1249 RETVAL 2337 RETVAL
1250 2338
1251void 2339void
1252poll_wait() 2340poll_wait ()
2341 CODE:
2342 poll_wait ();
2343
2344int
2345nreqs ()
2346 CODE:
2347 RETVAL = eio_nreqs ();
2348 OUTPUT:
2349 RETVAL
2350
2351int
2352nready ()
2353 CODE:
2354 RETVAL = eio_nready ();
2355 OUTPUT:
2356 RETVAL
2357
2358int
2359npending ()
2360 CODE:
2361 RETVAL = eio_npending ();
2362 OUTPUT:
2363 RETVAL
2364
2365int
2366nthreads ()
2367 CODE:
2368 RETVAL = eio_nthreads ();
2369 OUTPUT:
2370 RETVAL
2371
2372int
2373fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2374 CODE:
2375 RETVAL = posix_fadvise (fh, offset, length, advice);
2376 OUTPUT:
2377 RETVAL
2378
2379IV
2380sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2381 CODE:
2382 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2383 OUTPUT:
2384 RETVAL
2385
2386void
2387mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2388 PPCODE:
2389 sv_clear_foreign (scalar);
2390{
2391 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2392 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2393 if (addr == (void *)-1)
2394 XSRETURN_NO;
2395
2396 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2397
2398 if (!(prot & PROT_WRITE))
2399 SvREADONLY_on (scalar);
2400
2401 XSRETURN_YES;
2402}
2403
2404void
2405munmap (SV *scalar)
2406 CODE:
2407 sv_clear_foreign (scalar);
2408
2409SV *
2410mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2411 CODE:
2412{
2413 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2414 void *new;
2415
2416 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2417 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2418
2419 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2420
2421 RETVAL = &PL_sv_no;
2422
2423 if (new != (void *)-1)
2424 {
2425 RETVAL = new == (void *)mg->mg_ptr
2426 ? newSVpvn ("0 but true", 10)
2427 : &PL_sv_yes;
2428
2429 mg->mg_ptr = (char *)new;
2430 mg->mg_obj = (SV *)new_length;
2431
2432 SvPVX (scalar) = mg->mg_ptr;
2433 SvCUR_set (scalar, new_length);
2434 }
2435}
2436 OUTPUT:
2437 RETVAL
2438
2439int
2440madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2441 ALIAS:
2442 mprotect = 1
2443 CODE:
2444{
2445 STRLEN svlen;
2446 void *addr = SvPVbyte (scalar, svlen);
2447 STRLEN len = SvUV (length);
2448
2449 if (offset < 0)
2450 offset += svlen;
2451
2452 if (offset < 0 || offset > svlen)
2453 croak ("offset outside of scalar");
2454
2455 if (!SvOK (length) || len + offset > svlen)
2456 len = svlen - offset;
2457
2458 addr = (void *)(((intptr_t)addr) + offset);
2459 eio_page_align (&addr, &len);
2460
2461 switch (ix)
2462 {
2463 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2464 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2465 }
2466}
2467 OUTPUT:
2468 RETVAL
2469
2470int
2471munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2472 CODE:
2473{
2474 STRLEN svlen;
2475 void *addr = SvPVbyte (scalar, svlen);
2476 size_t len = SvUV (length);
2477
2478 if (offset < 0)
2479 offset += svlen;
2480
2481 if (offset < 0 || offset > svlen)
2482 croak ("offset outside of scalar");
2483
2484 if (!SvOK (length) || len + offset > svlen)
2485 len = svlen - offset;
2486
2487 addr = (void *)(((intptr_t)addr) + offset);
2488 eio_page_align (&addr, &len);
2489#if _POSIX_MEMLOCK_RANGE
2490 RETVAL = munlock (addr, len);
2491#else
2492 RETVAL = EIO_ENOSYS ();
2493#endif
2494}
2495 OUTPUT:
2496 RETVAL
2497
2498int
2499mlockall (int flags)
2500 PROTOTYPE: $;
2501 CODE:
2502 RETVAL = eio_mlockall_sync (flags);
2503 OUTPUT:
2504 RETVAL
2505
2506int
2507munlockall ()
2508 CODE:
2509#if _POSIX_MEMLOCK
2510 munlockall ();
2511#else
2512 RETVAL = EIO_ENOSYS ();
2513#endif
2514 OUTPUT:
2515 RETVAL
2516
2517int
2518statx (SV8 *pathname, int flags, UV mask)
2519 CODE:
2520{
2521 /* undocumented, and might go away, and anyway, should use eio_statx */
2522 SV *wdsv = 0;
2523 SV *pathsv = 0;
2524 eio_wd wd = EIO_CWD;
2525 void *ptr;
2526 int res;
2527
2528 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2529 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2530
2531 SvREFCNT_dec (pathsv);
2532 SvREFCNT_dec (wdsv);
2533}
2534 OUTPUT:
2535 RETVAL
2536
2537U32
2538stx_mode ()
1253 PROTOTYPE: 2539 PROTOTYPE:
1254 CODE: 2540 CODE:
2541#if HAVE_STATX
2542 RETVAL = stx.stx_mode;
2543#else
2544 XSRETURN_UNDEF;
2545#endif
2546 OUTPUT:
2547 RETVAL
2548
2549#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2550#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2551#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2552#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2553#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2554#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2555#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2556#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2557#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2558#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2559#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2560#define STATX_OFFSET_size statx_offsetof (stx_size)
2561#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2562#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2563#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2564#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2565#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2566#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2567
2568U32
2569stx_mask ()
2570 PROTOTYPE:
2571 ALIAS:
2572 stx_mask = STATX_OFFSET_mask
2573 stx_blksize = STATX_OFFSET_blksize
2574 stx_nlink = STATX_OFFSET_nlink
2575 stx_uid = STATX_OFFSET_uid
2576 stx_gid = STATX_OFFSET_gid
2577 stx_rdev_major = STATX_OFFSET_rdev_major
2578 stx_rdev_minor = STATX_OFFSET_rdev_minor
2579 stx_dev_major = STATX_OFFSET_dev_major
2580 stx_dev_minor = STATX_OFFSET_dev_minor
2581 CODE:
2582#if HAVE_STATX
2583 RETVAL = *(__u32 *)((char *)&stx + ix);
2584#else
2585 XSRETURN_UNDEF;
2586#endif
2587 OUTPUT:
2588 RETVAL
2589
2590VAL64
2591stx_attributes ()
2592 PROTOTYPE:
2593 ALIAS:
2594 stx_attributes = STATX_OFFSET_attributes
2595 stx_ino = STATX_OFFSET_ino
2596 stx_size = STATX_OFFSET_size
2597 stx_blocks = STATX_OFFSET_blocks
2598 stx_attributes_mask = STATX_OFFSET_attributes_mask
2599 CODE:
2600#if HAVE_STATX
2601 RETVAL = *(__u64 *)((char *)&stx + ix);
2602#else
2603 XSRETURN_UNDEF;
2604#endif
2605 OUTPUT:
2606 RETVAL
2607
2608NV
2609stx_atime ()
2610 PROTOTYPE:
2611 ALIAS:
2612 stx_atime = STATX_OFFSET_atime
2613 stx_btime = STATX_OFFSET_btime
2614 stx_ctime = STATX_OFFSET_ctime
2615 stx_mtime = STATX_OFFSET_mtime
2616 CODE:
2617#if HAVE_STATX
2618 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2619 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2620#else
2621 XSRETURN_UNDEF;
2622#endif
2623 OUTPUT:
2624 RETVAL
2625
2626VAL64
2627stx_atimesec ()
2628 PROTOTYPE:
2629 ALIAS:
2630 stx_atimesec = STATX_OFFSET_atime
2631 stx_btimesec = STATX_OFFSET_btime
2632 stx_ctimesec = STATX_OFFSET_ctime
2633 stx_mtimesec = STATX_OFFSET_mtime
2634 CODE:
2635#if HAVE_STATX
2636 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2637 RETVAL = ts->tv_sec;
2638#else
2639 XSRETURN_UNDEF;
2640#endif
2641 OUTPUT:
2642 RETVAL
2643
2644U32
2645stx_atimensec ()
2646 PROTOTYPE:
2647 ALIAS:
2648 stx_atimensec = STATX_OFFSET_atime
2649 stx_btimensec = STATX_OFFSET_btime
2650 stx_ctimensec = STATX_OFFSET_ctime
2651 stx_mtimensec = STATX_OFFSET_mtime
2652 CODE:
2653#if HAVE_STATX
2654 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2655 RETVAL = ts->tv_nsec;
2656#else
2657 RETVAL = 0;
2658#endif
2659 OUTPUT:
2660 RETVAL
2661
2662void
2663accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2664 PPCODE:
2665{
2666 SV *retval;
2667#if HAVE_ACCEPT4
2668 socklen_t salen_ = salen ? salen + 1 : 0;
2669
1255 if (nreqs) 2670 if (salen)
1256 poll_wait (); 2671 {
2672 sv_upgrade (sockaddr, SVt_PV);
2673 sv_grow (sockaddr, salen_);
2674 }
2675
2676 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2677
2678 retval = newmortalFH (res, O_RDWR);
2679
2680 if (res >= 0 && salen > 0)
2681 {
2682 if (salen_ > salen + 1)
2683 salen_ = salen + 1;
2684
2685 SvPOK_only (sockaddr);
2686 SvCUR_set (sockaddr, salen_);
2687 }
2688#else
2689 errno = ENOSYS;
2690 retval = &PL_sv_undef;
2691#endif
2692 XPUSHs (retval);
2693}
2694
2695ssize_t
2696splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2697 CODE:
2698{
2699#if HAVE_LINUX_SPLICE
2700 loff_t off_in_, off_out_;
2701 RETVAL = splice (
2702 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2703 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2704 length, flags
2705 );
2706#else
2707 RETVAL = EIO_ENOSYS ();
2708#endif
2709}
2710 OUTPUT:
2711 RETVAL
2712
2713ssize_t
2714tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2715 CODE:
2716#if HAVE_LINUX_SPLICE
2717 RETVAL = tee (rfh, wfh, length, flags);
2718#else
2719 RETVAL = EIO_ENOSYS ();
2720#endif
2721 OUTPUT:
2722 RETVAL
1257 2723
1258int 2724int
1259nreqs() 2725pipesize (aio_rfd rfh, int new_size = -1)
2726 PROTOTYPE: $;$
2727 CODE:
2728#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2729 if (new_size >= 0)
2730 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2731 else
2732 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2733#else
2734 errno = ENOSYS;
2735 RETVAL = -1;
2736#endif
2737 OUTPUT:
2738 RETVAL
2739
2740void
2741pipe2 (int flags = 0)
1260 PROTOTYPE: 2742 PROTOTYPE: ;$
2743 PPCODE:
2744{
2745 int fd[2];
2746 int res;
2747
2748 if (flags)
2749#if HAVE_PIPE2
2750 res = pipe2 (fd, flags);
2751#else
2752 res = (errno = ENOSYS, -1);
2753#endif
2754 else
2755 res = pipe (fd);
2756
2757 if (!res)
2758 {
2759 EXTEND (SP, 2);
2760 PUSHs (newmortalFH (fd[0], O_RDONLY));
2761 PUSHs (newmortalFH (fd[1], O_WRONLY));
2762 }
2763}
2764
2765void
2766pidfd_open (int pid, unsigned int flags = 0)
2767 PPCODE:
2768{
2769 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2770 int fd = syscall (SYS_pidfd_open, pid, flags);
2771 XPUSHs (newmortalFH (fd, O_RDWR));
2772}
2773
2774int
2775pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
2776 PPCODE:
2777{
2778 int res;
2779#if HAVE_SIGINFO_T
2780 siginfo_t si = { 0 };
2781
2782 if (SvOK (siginfo))
2783 {
2784 HV *hv;
2785 SV **svp;
2786
2787 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2788 croak ("siginfo argument must be a hashref with 'code', 'pid', 'uid' and 'value_int' or 'value_ptr' members, caught");
2789
2790 hv = (HV *)SvRV (siginfo);
2791
2792 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2793 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2794 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2795 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2796 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2797 }
2798
2799 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2800 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2801#else
2802 res = (errno = ENOSYS, -1);
2803#endif
2804
2805 XPUSHs (sv_2mortal (newSViv (res)));
2806}
2807
2808void
2809pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2810 PPCODE:
2811{
2812 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2813 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2814 XPUSHs (newmortalFH (fd, O_RDWR));
2815}
2816
2817void
2818eventfd (unsigned int initval = 0, int flags = 0)
2819 PPCODE:
2820{
2821 int fd;
2822#if HAVE_EVENTFD
2823 fd = eventfd (initval, flags);
2824#else
2825 fd = (errno = ENOSYS, -1);
2826#endif
2827
2828 XPUSHs (newmortalFH (fd, O_RDWR));
2829}
2830
2831void
2832timerfd_create (int clockid, int flags = 0)
2833 PPCODE:
2834{
2835 int fd;
2836#if HAVE_TIMERFD
2837 fd = timerfd_create (clockid, flags);
2838#else
2839 fd = (errno = ENOSYS, -1);
2840#endif
2841
2842 XPUSHs (newmortalFH (fd, O_RDWR));
2843}
2844
2845void
2846timerfd_settime (SV *fh, int flags, NV interval, NV value)
2847 PPCODE:
2848{
2849 int fd = s_fileno_croak (fh, 0);
2850#if HAVE_TIMERFD
2851 int res;
2852 struct itimerspec its, ots;
2853
2854 ts_set (&its.it_interval, interval);
2855 ts_set (&its.it_value , value);
2856 res = timerfd_settime (fd, flags, &its, &ots);
2857
2858 if (!res)
2859 {
2860 EXTEND (SP, 2);
2861 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2862 PUSHs (newSVnv (ts_get (&ots.it_value)));
2863 }
2864#else
2865 errno = ENOSYS;
2866#endif
2867}
2868
2869void
2870timerfd_gettime (SV *fh)
2871 PPCODE:
2872{
2873 int fd = s_fileno_croak (fh, 0);
2874#if HAVE_TIMERFD
2875 int res;
2876 struct itimerspec ots;
2877 res = timerfd_gettime (fd, &ots);
2878
2879 if (!res)
2880 {
2881 EXTEND (SP, 2);
2882 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2883 PUSHs (newSVnv (ts_get (&ots.it_value)));
2884 }
2885#else
2886 errno = ENOSYS;
2887#endif
2888}
2889
2890void
2891memfd_create (octet_string pathname, int flags = 0)
2892 PPCODE:
2893{
2894 int fd;
2895#if HAVE_MEMFD_CREATE
2896 fd = memfd_create (pathname, flags);
2897#else
2898 fd = (errno = ENOSYS, -1);
2899#endif
2900
2901 XPUSHs (newmortalFH (fd, O_RDWR));
2902}
2903
2904int
2905fexecve (SV *fh, SV *args, SV *envs = &PL_sv_undef)
1261 CODE: 2906 CODE:
1262 RETVAL = nreqs; 2907{
2908 int fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
2909 char **envp, **argv;
2910 argv = extract_stringvec (args, "IO::AIO::fexecve: args must be an array of strings");
2911 if (!SvOK (envs))
2912 {
2913 extern char **environ;
2914 envp = environ;
2915 }
2916 else
2917 envp = extract_stringvec (envs, "IO::AIO::fexecve: envs must be an array of strings");
2918#if _POSIX_VERSION >= 200809L
2919 RETVAL = fexecve (fd, argv, envp);
2920#else
2921 RETVAL = (errno = ENOSYS, -1);
2922#endif
2923}
2924 OUTPUT: RETVAL
2925
2926int
2927mount (octet_string special, octet_string path, octet_string fstype, UV flags = 0, octet_string_ornull data = 0)
2928 CODE:
2929#if HAVE_MOUNT
2930 RETVAL = mount (special, path, fstype, flags, data);
2931#else
2932 RETVAL = (errno = ENOSYS, -1);
2933#endif
2934 OUTPUT: RETVAL
2935
2936int
2937umount (octet_string path, int flags = 0)
2938 CODE:
2939 if (flags)
2940#if HAVE_UMOUNT2
2941 RETVAL = umount2 (path, flags);
2942#else
2943 RETVAL = (errno = ENOSYS, -1);
2944#endif
2945 else
2946#if HAVE_UMOUNT
2947 RETVAL = umount (path);
2948#else
2949 RETVAL = (errno = ENOSYS, -1);
2950#endif
2951 OUTPUT: RETVAL
2952
2953UV
2954get_fdlimit ()
2955 CODE:
2956#if HAVE_RLIMITS
2957 struct rlimit rl;
2958 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2959 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2960#endif
2961 XSRETURN_UNDEF;
1263 OUTPUT: 2962 OUTPUT:
1264 RETVAL 2963 RETVAL
2964
2965void
2966min_fdlimit (UV limit = 0x7fffffffU)
2967 CODE:
2968{
2969#if HAVE_RLIMITS
2970 struct rlimit rl;
2971 rlim_t orig_rlim_max;
2972 UV bit;
2973
2974 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2975 goto fail;
2976
2977 if (rl.rlim_cur == RLIM_INFINITY)
2978 XSRETURN_YES;
2979
2980 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2981
2982 if (rl.rlim_cur < limit)
2983 {
2984 rl.rlim_cur = limit;
2985
2986 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2987 rl.rlim_max = rl.rlim_cur;
2988 }
2989
2990 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2991 XSRETURN_YES;
2992
2993 if (errno == EPERM)
2994 {
2995 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2996 /* our limit overflows a system-wide limit */
2997 /* try an adaptive algorithm, but do not lower the hardlimit */
2998 rl.rlim_max = 0;
2999 for (bit = 0x40000000U; bit; bit >>= 1)
3000 {
3001 rl.rlim_max |= bit;
3002 rl.rlim_cur = rl.rlim_max;
3003
3004 /* never decrease the hard limit */
3005 if (rl.rlim_max < orig_rlim_max)
3006 break;
3007
3008 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
3009 rl.rlim_max &= ~bit; /* too high, remove bit again */
3010 }
3011
3012 /* now, raise the soft limit to the max permitted */
3013 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
3014 {
3015 rl.rlim_cur = rl.rlim_max;
3016 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
3017 errno = EPERM;
3018 }
3019 }
3020#endif
3021 fail:
3022 XSRETURN_UNDEF;
3023}
3024
3025void _on_next_submit (SV *cb)
3026 CODE:
3027 SvREFCNT_dec (on_next_submit);
3028 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1265 3029
1266PROTOTYPES: DISABLE 3030PROTOTYPES: DISABLE
1267 3031
3032MODULE = IO::AIO PACKAGE = IO::AIO::WD
3033
3034BOOT:
3035{
3036 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
3037 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
3038}
3039
3040void
3041DESTROY (SV *self)
3042 CODE:
3043{
3044 aio_wd wd = SvAIO_WD (self);
3045#if HAVE_AT
3046 {
3047 SV *callback = &PL_sv_undef;
3048 dREQ; /* clobbers next_pri :/ */
3049 next_pri = req->pri; /* restore next_pri */
3050 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
3051 req->type = EIO_WD_CLOSE;
3052 req->wd = wd;
3053 REQ_SEND;
3054 }
3055#else
3056 eio_wd_close_sync (wd);
3057#endif
3058}
3059
1268MODULE = IO::AIO PACKAGE = IO::AIO::REQ 3060MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1269 3061
1270void 3062void
1271cancel (aio_req_ornot req) 3063cancel (aio_req_ornot req)
1272 PROTOTYPE:
1273 CODE: 3064 CODE:
1274 req_cancel (req); 3065 eio_cancel (req);
3066
3067void
3068cb (aio_req_ornot req, SV *callback = NO_INIT)
3069 PPCODE:
3070{
3071 if (GIMME_V != G_VOID)
3072 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
3073
3074 if (items > 1)
3075 {
3076 SV *cb_cv = get_cb (callback);
3077
3078 SvREFCNT_dec (req->callback);
3079 req->callback = SvREFCNT_inc (cb_cv);
3080 }
3081}
1275 3082
1276MODULE = IO::AIO PACKAGE = IO::AIO::GRP 3083MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1277 3084
1278void 3085void
1279add (aio_req grp, ...) 3086add (aio_req grp, ...)
1280 PPCODE: 3087 PPCODE:
1281{ 3088{
1282 int i; 3089 int i;
1283 3090
1284 if (grp->fd == 2) 3091 if (grp->int1 == 2)
1285 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 3092 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1286 3093
1287 for (i = 1; i < items; ++i ) 3094 for (i = 1; i < items; ++i )
1288 { 3095 {
3096 aio_req req;
3097
1289 if (GIMME_V != G_VOID) 3098 if (GIMME_V != G_VOID)
1290 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 3099 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1291 3100
1292 aio_req req = SvAIO_REQ (ST (i)); 3101 req = SvAIO_REQ (ST (i));
1293 3102
1294 if (req) 3103 if (req)
1295 { 3104 eio_grp_add (grp, req);
1296 ++grp->length;
1297 req->grp = grp;
1298
1299 req->grp_prev = 0;
1300 req->grp_next = grp->grp_first;
1301
1302 if (grp->grp_first)
1303 grp->grp_first->grp_prev = req;
1304
1305 grp->grp_first = req;
1306 }
1307 } 3105 }
1308} 3106}
3107
3108void
3109cancel_subs (aio_req_ornot req)
3110 CODE:
3111 req_cancel_subs (req);
1309 3112
1310void 3113void
1311result (aio_req grp, ...) 3114result (aio_req grp, ...)
1312 CODE: 3115 CODE:
1313{ 3116{
1314 int i; 3117 int i;
3118 AV *av;
3119
3120 grp->errorno = errno;
3121
1315 AV *av = newAV (); 3122 av = newAV ();
3123 av_extend (av, items - 1);
1316 3124
1317 for (i = 1; i < items; ++i ) 3125 for (i = 1; i < items; ++i )
1318 av_push (av, newSVsv (ST (i))); 3126 av_push (av, newSVsv (ST (i)));
1319 3127
1320 SvREFCNT_dec (grp->data); 3128 SvREFCNT_dec (grp->sv1);
1321 grp->data = (SV *)av; 3129 grp->sv1 = (SV *)av;
1322} 3130}
1323 3131
1324void 3132void
1325lock (aio_req grp) 3133errno (aio_req grp, int errorno = errno)
3134 CODE:
3135 grp->errorno = errorno;
3136
3137void
3138limit (aio_req grp, int limit)
1326 CODE: 3139 CODE:
1327 ++grp->length; 3140 eio_grp_limit (grp, limit);
1328 3141
1329void 3142void
1330unlock (aio_req grp) 3143feed (aio_req grp, SV *callback = &PL_sv_undef)
1331 CODE: 3144 CODE:
1332 aio_grp_dec (grp);
1333
1334void
1335feeder_limit (aio_req grp, int limit)
1336 CODE:
1337 grp->fd2 = limit;
1338 aio_grp_feed (grp);
1339
1340void
1341set_feeder (aio_req grp, SV *callback=&PL_sv_undef)
1342 CODE:
1343{ 3145{
1344 SvREFCNT_dec (grp->fh2); 3146 SvREFCNT_dec (grp->sv2);
1345 grp->fh2 = newSVsv (callback); 3147 grp->sv2 = newSVsv (callback);
3148 grp->feed = aio_grp_feed;
1346 3149
1347 if (grp->fd2 <= 0) 3150 if (grp->int2 <= 0)
1348 grp->fd2 = 2; 3151 grp->int2 = 2;
1349 3152
1350 aio_grp_feed (grp); 3153 eio_grp_limit (grp, grp->int2);
1351} 3154}
1352 3155

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