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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.61 by root, Mon Oct 23 22:44:21 2006 UTC vs.
Revision 1.300 by root, Wed Sep 28 08:24:25 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_GROUP, REQ_NOP,
61 REQ_SLEEP,
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 SV *data, *callback;
72 SV *fh, *fh2;
73 void *dataptr, *data2ptr;
74 Stat_t *statdata;
75 off_t offset;
76 size_t length;
77 ssize_t result;
78
79 STRLEN dataoffset;
80 int type;
81 int fd, fd2;
82 int errorno;
83 mode_t mode; /* open */
84
85 unsigned char flags;
86 unsigned char pri;
87
88 SV *self; /* the perl counterpart of this request, if any */
89 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
90} aio_cb;
91
92enum {
93 FLAG_CANCELLED = 0x01,
94};
95
96typedef aio_cb *aio_req; 470typedef eio_req *aio_req;
97typedef aio_cb *aio_req_ornot; 471typedef eio_req *aio_req_ornot;
472typedef eio_wd aio_wd;
98 473
99enum { 474static SV *on_next_submit;
100 PRI_MIN = -4, 475static int next_pri = EIO_PRI_DEFAULT;
101 PRI_MAX = 4,
102
103 DEFAULT_PRI = 0,
104 PRI_BIAS = -PRI_MIN,
105};
106
107static int next_pri = DEFAULT_PRI + PRI_BIAS;
108
109static int started, wanted;
110static volatile int nreqs;
111static int max_outstanding = 1<<30; 476static int max_outstanding;
112static int respipe [2];
113 477
114static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 478static s_epipe respipe;
115static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
116static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
117 479
118static volatile aio_req reqs, reqe; /* queue start, queue end */ 480static void req_destroy (aio_req req);
119static volatile aio_req ress, rese; /* queue start, queue end */
120
121static void req_invoke (aio_req req); 481static void req_cancel (aio_req req);
122static 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}
123 496
124/* must be called at most once */ 497/* must be called at most once */
125static SV *req_sv (aio_req req, const char *klass) 498ecb_noinline
499static SV *
500req_sv (aio_req req, HV *stash)
126{ 501{
127 if (!req->self) 502 if (!req->self)
128 { 503 {
129 req->self = (SV *)newHV (); 504 req->self = (SV *)newHV ();
130 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 505 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
131 } 506 }
132 507
133 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 508 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
134} 509}
135 510
136static aio_req SvAIO_REQ (SV *sv) 511static SV *
512newSVaio_wd (aio_wd wd)
513{
514 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
515}
516
517ecb_noinline
518static aio_req
519SvAIO_REQ (SV *sv)
137{ 520{
138 MAGIC *mg; 521 MAGIC *mg;
139 522
140 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 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")))
141 croak ("object of class " AIO_REQ_KLASS " expected"); 528 croak ("object of class IO::AIO::REQ expected");
142 529
143 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 530 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
144 531
145 return mg ? (aio_req)mg->mg_ptr : 0; 532 return mg ? (aio_req)mg->mg_ptr : 0;
146} 533}
147 534
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
148static void aio_grp_feed (aio_req grp) 572aio_grp_feed (aio_req grp)
149{ 573{
150 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 574 if (grp->sv2 && SvOK (grp->sv2))
151 { 575 {
152 int old_len = grp->length; 576 dSP;
153 577
154 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))
155 { 628 {
156 dSP; 629 sv_result = sv_result_cache; sv_result_cache = 0;
157 630 SvIV_set (sv_result, req->result);
158 ENTER; 631 SvIOK_only (sv_result);
159 SAVETMPS;
160 PUSHMARK (SP);
161 XPUSHs (req_sv (grp, AIO_GRP_KLASS));
162 PUTBACK;
163 call_sv (grp->fh2, G_VOID | G_EVAL);
164 SPAGAIN;
165 FREETMPS;
166 LEAVE;
167 } 632 }
168 633 else
169 /* stop if no progress has been made */
170 if (old_len == grp->length)
171 { 634 {
172 SvREFCNT_dec (grp->fh2); 635 sv_result = newSViv (req->result);
173 grp->fh2 = 0; 636 SvREADONLY_on (sv_result);
174 break;
175 } 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;
176 } 892 }
177}
178 893
179static void aio_grp_dec (aio_req grp) 894 return !!SvTRUE (ERRSV);
180{
181 --grp->length;
182
183 /* call feeder, if applicable */
184 aio_grp_feed (grp);
185
186 /* finish, if done */
187 if (!grp->length && grp->fd)
188 {
189 req_invoke (grp);
190 req_free (grp);
191 }
192} 895}
193 896
194static void poll_wait () 897static void
898req_destroy (aio_req req)
195{ 899{
196 while (nreqs)
197 {
198 aio_req req;
199 pthread_mutex_lock (&reslock);
200 req = ress;
201 pthread_mutex_unlock (&reslock);
202
203 if (req)
204 return;
205
206 fd_set rfd;
207 FD_ZERO(&rfd);
208 FD_SET(respipe [0], &rfd);
209
210 select (respipe [0] + 1, &rfd, 0, 0, 0);
211 }
212}
213
214static void req_invoke (aio_req req)
215{
216 dSP;
217 int errorno = errno;
218
219 if (req->flags & FLAG_CANCELLED || !SvOK (req->callback))
220 return;
221
222 errno = req->errorno;
223
224 ENTER;
225 SAVETMPS;
226 PUSHMARK (SP);
227 EXTEND (SP, 1);
228
229 switch (req->type)
230 {
231 case REQ_READDIR:
232 {
233 SV *rv = &PL_sv_undef;
234
235 if (req->result >= 0)
236 {
237 char *buf = req->data2ptr;
238 AV *av = newAV ();
239
240 while (req->result)
241 {
242 SV *sv = newSVpv (buf, 0);
243
244 av_push (av, sv);
245 buf += SvCUR (sv) + 1;
246 req->result--;
247 }
248
249 rv = sv_2mortal (newRV_noinc ((SV *)av));
250 }
251
252 PUSHs (rv);
253 }
254 break;
255
256 case REQ_OPEN:
257 {
258 /* convert fd to fh */
259 SV *fh;
260
261 PUSHs (sv_2mortal (newSViv (req->result)));
262 PUTBACK;
263 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
264 SPAGAIN;
265
266 fh = SvREFCNT_inc (POPs);
267
268 PUSHMARK (SP);
269 XPUSHs (sv_2mortal (fh));
270 }
271 break;
272
273 case REQ_GROUP:
274 req->fd = 2; /* mark group as finished */
275
276 if (req->data)
277 {
278 int i;
279 AV *av = (AV *)req->data;
280
281 EXTEND (SP, AvFILL (av) + 1);
282 for (i = 0; i <= AvFILL (av); ++i)
283 PUSHs (*av_fetch (av, i, 0));
284 }
285 break;
286
287 case REQ_NOP:
288 case REQ_SLEEP:
289 break;
290
291 default:
292 PUSHs (sv_2mortal (newSViv (req->result)));
293 break;
294 }
295
296
297 PUTBACK;
298 call_sv (req->callback, G_VOID | G_EVAL);
299 SPAGAIN;
300
301 FREETMPS;
302 LEAVE;
303
304 errno = errorno;
305
306 if (SvTRUE (ERRSV))
307 {
308 req_free (req);
309 croak (0);
310 }
311}
312
313static void req_free (aio_req req)
314{
315 if (req->grp)
316 {
317 aio_req grp = req->grp;
318
319 /* unlink request */
320 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
321 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
322
323 if (grp->grp_first == req)
324 grp->grp_first = req->grp_next;
325
326 aio_grp_dec (grp);
327 }
328
329 if (req->self) 900 if (req->self)
330 { 901 {
331 sv_unmagic (req->self, PERL_MAGIC_ext); 902 sv_unmagic (req->self, PERL_MAGIC_ext);
332 SvREFCNT_dec (req->self); 903 SvREFCNT_dec (req->self);
333 } 904 }
334 905
335 SvREFCNT_dec (req->data);
336 SvREFCNT_dec (req->fh); 906 SvREFCNT_dec (req->sv1);
337 SvREFCNT_dec (req->fh2); 907 SvREFCNT_dec (req->sv2);
908 SvREFCNT_dec (req->sv3);
909 SvREFCNT_dec (req->sv4);
338 SvREFCNT_dec (req->callback); 910 SvREFCNT_dec (req->callback);
339 Safefree (req->statdata);
340 911
341 if (req->type == REQ_READDIR && req->result >= 0)
342 free (req->data2ptr);
343
344 Safefree (req); 912 free (req);
345} 913}
346 914
347static void req_cancel (aio_req req) 915static void
916req_cancel_subs (aio_req grp)
348{ 917{
349 req->flags |= FLAG_CANCELLED;
350
351 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 ())
352 { 939 {
353 aio_req sub; 940 int size;
354 941
355 for (sub = req->grp_first; sub; sub = sub->grp_next) 942 X_LOCK (EIO_POOL->reslock);
356 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);
357 } 952 }
358} 953}
359 954
360static int poll_cb () 955static int
956poll_cb (void)
361{ 957{
362 dSP;
363 int count = 0;
364 int do_croak = 0;
365 aio_req req;
366
367 for (;;) 958 for (;;)
368 { 959 {
369 pthread_mutex_lock (&reslock); 960 int res = eio_poll ();
370 req = ress;
371 961
372 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)
373 { 1034 {
374 ress = req->next; 1035 path = AvARRAY (rv)[1];
1036 wdob = AvARRAY (rv)[0];
375 1037
376 if (!ress) 1038 if (SvOK (wdob))
377 { 1039 {
378 /* read any signals sent by the worker threads */ 1040 *wd = SvAIO_WD (wdob);
379 char buf [32]; 1041 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
380 while (read (respipe [0], buf, 32) == 32)
381 ;
382
383 rese = 0;
384 } 1042 }
1043 else
1044 *wd = EIO_INVALID_WD;
385 } 1045 }
386 1046 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
387 pthread_mutex_unlock (&reslock);
388
389 if (!req)
390 break;
391
392 --nreqs;
393
394 if (req->type == REQ_QUIT)
395 started--;
396 else if (req->type == REQ_GROUP && req->length)
397 { 1047 {
398 req->fd = 1; /* mark request as delayed */ 1048 *wd = (aio_wd)(long)SvIVX (rv);
399 continue; 1049 *wdsv = SvREFCNT_inc_NN (rv);
1050 *ptr = ".";
1051 return; /* path set to "." */
400 } 1052 }
401 else 1053 else
402 { 1054 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
403 if (req->type == REQ_READ)
404 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
405
406 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
407 SvREADONLY_off (req->data);
408
409 if (req->statdata)
410 {
411 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
412 PL_laststatval = req->result;
413 PL_statcache = *(req->statdata);
414 }
415
416 req_invoke (req);
417
418 count++;
419 }
420
421 req_free (req);
422 } 1055 }
423 1056
424 return count; 1057 *pathsv = newSVsv (path);
1058 *ptr = SvPVbyte_nolen (*pathsv);
425} 1059}
426 1060
427static void *aio_proc(void *arg); 1061ecb_noinline
428 1062static void
429static void start_thread (void) 1063req_set_path1 (aio_req req, SV *path)
430{ 1064{
431 sigset_t fullsigset, oldsigset; 1065 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
432 pthread_t tid;
433 pthread_attr_t attr;
434
435 pthread_attr_init (&attr);
436 pthread_attr_setstacksize (&attr, STACKSIZE);
437 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
438
439 sigfillset (&fullsigset);
440 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
441
442 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
443 started++;
444
445 sigprocmask (SIG_SETMASK, &oldsigset, 0);
446} 1066}
447 1067
448static 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)
449{ 1071{
450 while (started < wanted && nreqs >= started) 1072 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
451 start_thread ();
452 1073
453 ++nreqs; 1074 switch (SvTYPE (rv))
454
455 pthread_mutex_lock (&reqlock);
456
457 req->next = 0;
458
459 if (reqe)
460 { 1075 {
461 reqe->next = req; 1076 case SVt_PVIO:
462 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;
463 } 1088 }
464 else
465 reqe = reqs = req;
466
467 pthread_cond_signal (&reqwait);
468 pthread_mutex_unlock (&reqlock);
469
470 if (nreqs > max_outstanding)
471 for (;;)
472 {
473 poll_cb ();
474
475 if (nreqs <= max_outstanding)
476 break;
477
478 poll_wait ();
479 }
480} 1089}
481 1090
482static void end_thread (void) 1091/*****************************************************************************/
483{
484 aio_req req;
485 Newz (0, req, 1, aio_cb);
486 req->type = REQ_QUIT;
487 1092
488 req_send (req); 1093static void
489} 1094ts_set (struct timespec *ts, NV value)
490
491static void min_parallel (int nthreads)
492{ 1095{
493 if (wanted < nthreads) 1096 ts->tv_sec = value;
494 wanted = nthreads; 1097 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
495} 1098}
496 1099
497static void max_parallel (int nthreads) 1100static NV
1101ts_get (const struct timespec *ts)
498{ 1102{
499 int cur = started; 1103 return ts->tv_sec + ts->tv_nsec * 1e-9;
1104}
500 1105
501 if (wanted > nthreads) 1106/*****************************************************************************/
502 wanted = nthreads;
503 1107
504 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)
505 { 1120 {
506 end_thread (); 1121 SV **e = av_fetch (av, i, 0);
507 cur--; 1122
1123 if (e && *e)
1124 vecp[i] = SvPVbyte_nolen (*e);
1125 else
1126 vecp[i] = "";
508 } 1127 }
509 1128
510 while (started > wanted) 1129 vecp[nelem] = 0;
511 {
512 poll_wait ();
513 poll_cb ();
514 }
515}
516 1130
517static void create_pipe () 1131 return vecp;
518{
519 if (pipe (respipe))
520 croak ("unable to initialize result pipe");
521
522 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
523 croak ("cannot set result pipe to nonblocking mode");
524
525 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
526 croak ("cannot set result pipe to nonblocking mode");
527} 1132}
528 1133
529/*****************************************************************************/ 1134/*****************************************************************************/
530/* work around various missing functions */
531 1135
532#if !HAVE_PREADWRITE 1136XS(boot_IO__AIO) ecb_cold;
533# define pread aio_pread
534# define pwrite aio_pwrite
535 1137
536/* 1138MODULE = IO::AIO PACKAGE = IO::AIO
537 * make our pread/pwrite safe against themselves, but not against
538 * normal read/write by using a mutex. slows down execution a lot,
539 * but that's your problem, not mine.
540 */
541static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
542 1139
543static ssize_t pread (int fd, void *buf, size_t count, off_t offset) 1140PROTOTYPES: ENABLE
544{
545 ssize_t res;
546 off_t ooffset;
547 1141
548 pthread_mutex_lock (&preadwritelock); 1142BOOT:
549 ooffset = lseek (fd, 0, SEEK_CUR);
550 lseek (fd, offset, SEEK_SET);
551 res = read (fd, buf, count);
552 lseek (fd, ooffset, SEEK_SET);
553 pthread_mutex_unlock (&preadwritelock);
554
555 return res;
556}
557
558static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
559{ 1143{
560 ssize_t res; 1144 static const struct {
561 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 },
562 1151
563 pthread_mutex_lock (&preadwritelock); 1152 /* you have to re-run ./gendef0 after adding/removing any constants here */
564 ooffset = lseek (fd, 0, SEEK_CUR); 1153 /* the first block can be undef if missing */
565 lseek (fd, offset, SEEK_SET); 1154 const_iv (ENOSYS)
566 res = write (fd, buf, count); 1155 const_iv (EXDEV)
567 lseek (fd, offset, SEEK_SET); 1156 const_iv (EBADR)
568 pthread_mutex_unlock (&preadwritelock);
569 1157
570 return res; 1158 /* for lseek */
571} 1159 const_iv (SEEK_DATA)
572#endif 1160 const_iv (SEEK_HOLE)
573 1161
574#if !HAVE_FDATASYNC 1162 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
575# define fdatasync fsync 1163 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
576#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)
577 1168
578#if !HAVE_READAHEAD 1169 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
579# 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)
580 1174
581static ssize_t readahead (int fd, off_t offset, size_t count) 1175 /* the second block will be 0 when missing */
582{ 1176 const_iv (O_ACCMODE)
583 char readahead_buf[4096];
584 1177
585 while (count > 0) 1178 const_iv (O_RDONLY)
586 { 1179 const_iv (O_WRONLY)
587 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)
588 1185
589 pread (fd, readahead_buf, len, offset); 1186 const_iv (O_ASYNC)
590 offset += len; 1187 const_iv (O_DIRECT)
591 count -= len; 1188 const_iv (O_NOATIME)
592 }
593 1189
594 errno = 0; 1190 const_iv (O_CLOEXEC)
595} 1191 const_iv (O_NOCTTY)
596#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)
597 1203
598#if !HAVE_READDIR_R 1204 const_iv (S_IFIFO)
599# 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)
600 1213
601static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; 1214 const_iv (ST_RDONLY)
602 1215 const_iv (ST_NOSUID)
603static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) 1216 const_iv (ST_NODEV)
604{ 1217 const_iv (ST_NOEXEC)
605 struct dirent *e; 1218 const_iv (ST_SYNCHRONOUS)
606 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)
607 1226
608 pthread_mutex_lock (&readdirlock); 1227 const_iv (PROT_NONE)
1228 const_iv (PROT_EXEC)
1229 const_iv (PROT_READ)
1230 const_iv (PROT_WRITE)
609 1231
610 e = readdir (dirp); 1232 const_iv (MAP_PRIVATE)
611 errorno = errno; 1233 const_iv (MAP_SHARED)
1234 const_iv (MAP_FIXED)
1235 const_iv (MAP_ANONYMOUS)
612 1236
613 if (e) 1237 /* linuxish */
614 { 1238 const_iv (MAP_LOCKED)
615 *res = ent; 1239 const_iv (MAP_NORESERVE)
616 strcpy (ent->d_name, e->d_name); 1240 const_iv (MAP_POPULATE)
617 } 1241 const_iv (MAP_NONBLOCK)
618 else 1242 const_iv (MAP_GROWSDOWN)
619 *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)
620 1250
621 pthread_mutex_unlock (&readdirlock); 1251 const_iv (MREMAP_MAYMOVE)
1252 const_iv (MREMAP_FIXED)
622 1253
623 errno = errorno; 1254 const_iv (MSG_CMSG_CLOEXEC)
624 return e ? 0 : -1; 1255 const_iv (SOCK_CLOEXEC)
625}
626#endif
627 1256
628/* sendfile always needs emulation */ 1257 const_iv (F_DUPFD_CLOEXEC)
629static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
630{
631 ssize_t res;
632 1258
633 if (!count) 1259 const_iv (F_ADD_SEALS)
634 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)
635 1265
636#if HAVE_SENDFILE 1266 const_iv (F_OFD_GETLK)
637# if __linux 1267 const_iv (F_OFD_SETLK)
638 res = sendfile (ofd, ifd, &offset, count); 1268 const_iv (F_OFD_GETLKW)
639 1269
640# elif __freebsd 1270 const_iv (FIFREEZE)
641 /* 1271 const_iv (FITHAW)
642 * Of course, the freebsd sendfile is a dire hack with no thoughts 1272 const_iv (FITRIM)
643 * wasted on making it similar to other I/O functions. 1273 const_iv (FICLONE)
644 */ 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#if HAVE_FIEMAP /* broken on musl for, like, foreever */
1282 const_iv (FS_IOC_FIEMAP)
1283#endif
1284 const_iv (FS_IOC_FSGETXATTR)
1285 const_iv (FS_IOC_FSSETXATTR)
1286 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1287 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1288 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1289
1290 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1291
1292 const_iv (FS_SECRM_FL)
1293 const_iv (FS_UNRM_FL)
1294 const_iv (FS_COMPR_FL)
1295 const_iv (FS_SYNC_FL)
1296 const_iv (FS_IMMUTABLE_FL)
1297 const_iv (FS_APPEND_FL)
1298 const_iv (FS_NODUMP_FL)
1299 const_iv (FS_NOATIME_FL)
1300 const_iv (FS_DIRTY_FL)
1301 const_iv (FS_COMPRBLK_FL)
1302 const_iv (FS_NOCOMP_FL)
1303 const_iv (FS_ENCRYPT_FL)
1304 const_iv (FS_BTREE_FL)
1305 const_iv (FS_INDEX_FL)
1306 const_iv (FS_JOURNAL_DATA_FL)
1307 const_iv (FS_NOTAIL_FL)
1308 const_iv (FS_DIRSYNC_FL)
1309 const_iv (FS_TOPDIR_FL)
1310 const_iv (FS_FL_USER_MODIFIABLE)
1311
1312 const_iv (FS_XFLAG_REALTIME)
1313 const_iv (FS_XFLAG_PREALLOC)
1314 const_iv (FS_XFLAG_IMMUTABLE)
1315 const_iv (FS_XFLAG_APPEND)
1316 const_iv (FS_XFLAG_SYNC)
1317 const_iv (FS_XFLAG_NOATIME)
1318 const_iv (FS_XFLAG_NODUMP)
1319 const_iv (FS_XFLAG_RTINHERIT)
1320 const_iv (FS_XFLAG_PROJINHERIT)
1321 const_iv (FS_XFLAG_NOSYMLINKS)
1322 const_iv (FS_XFLAG_EXTSIZE)
1323 const_iv (FS_XFLAG_EXTSZINHERIT)
1324 const_iv (FS_XFLAG_NODEFRAG)
1325 const_iv (FS_XFLAG_FILESTREAM)
1326 const_iv (FS_XFLAG_DAX)
1327 const_iv (FS_XFLAG_HASATTR)
1328
1329 const_iv (FIEMAP_FLAG_SYNC)
1330 const_iv (FIEMAP_FLAG_XATTR)
1331 const_iv (FIEMAP_FLAGS_COMPAT)
1332 const_iv (FIEMAP_EXTENT_LAST)
1333 const_iv (FIEMAP_EXTENT_UNKNOWN)
1334 const_iv (FIEMAP_EXTENT_DELALLOC)
1335 const_iv (FIEMAP_EXTENT_ENCODED)
1336 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1337 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1338 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1339 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1340 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1341 const_iv (FIEMAP_EXTENT_MERGED)
1342 const_iv (FIEMAP_EXTENT_SHARED)
1343
1344 const_iv (SPLICE_F_MOVE)
1345 const_iv (SPLICE_F_NONBLOCK)
1346 const_iv (SPLICE_F_MORE)
1347 const_iv (SPLICE_F_GIFT)
1348
1349 const_iv (EFD_CLOEXEC)
1350 const_iv (EFD_NONBLOCK)
1351 const_iv (EFD_SEMAPHORE)
1352
1353 const_iv (MFD_CLOEXEC)
1354 const_iv (MFD_ALLOW_SEALING)
1355 const_iv (MFD_HUGETLB)
1356 const_iv (MFD_HUGETLB_2MB)
1357 const_iv (MFD_HUGETLB_1GB)
1358
1359 const_iv (CLOCK_REALTIME)
1360 const_iv (CLOCK_MONOTONIC)
1361 const_iv (CLOCK_BOOTTIME)
1362 const_iv (CLOCK_REALTIME_ALARM)
1363 const_iv (CLOCK_BOOTTIME_ALARM)
1364
1365 const_iv (TFD_NONBLOCK)
1366 const_iv (TFD_CLOEXEC)
1367
1368 const_iv (TFD_TIMER_ABSTIME)
1369 const_iv (TFD_TIMER_CANCEL_ON_SET)
1370
1371 const_iv (STATX_TYPE)
1372 const_iv (STATX_MODE)
1373 const_iv (STATX_NLINK)
1374 const_iv (STATX_UID)
1375 const_iv (STATX_GID)
1376 const_iv (STATX_ATIME)
1377 const_iv (STATX_MTIME)
1378 const_iv (STATX_CTIME)
1379 const_iv (STATX_INO)
1380 const_iv (STATX_SIZE)
1381 const_iv (STATX_BLOCKS)
1382 const_iv (STATX_BASIC_STATS)
1383 const_iv (STATX_ALL)
1384 const_iv (STATX_BTIME)
1385 const_iv (STATX_ATTR_COMPRESSED)
1386 const_iv (STATX_ATTR_IMMUTABLE)
1387 const_iv (STATX_ATTR_APPEND)
1388 const_iv (STATX_ATTR_NODUMP)
1389 const_iv (STATX_ATTR_ENCRYPTED)
1390 const_iv (STATX_ATTR_AUTOMOUNT)
1391
1392 const_iv (AT_FDCWD)
1393 const_iv (AT_SYMLINK_NOFOLLOW)
1394 const_iv (AT_EACCESS)
1395 const_iv (AT_REMOVEDIR)
1396 const_iv (AT_SYMLINK_FOLLOW)
1397 const_iv (AT_NO_AUTOMOUNT)
1398 const_iv (AT_EMPTY_PATH)
1399 const_iv (AT_STATX_SYNC_TYPE)
1400 const_iv (AT_STATX_AS_STAT)
1401 const_iv (AT_STATX_FORCE_SYNC)
1402 const_iv (AT_STATX_DONT_SYNC)
1403 const_iv (AT_RECURSIVE)
1404
1405 const_iv (OPEN_TREE_CLONE)
1406
1407 const_iv (FSOPEN_CLOEXEC)
1408
1409 const_iv (FSPICK_CLOEXEC)
1410 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1411 const_iv (FSPICK_NO_AUTOMOUNT)
1412 const_iv (FSPICK_EMPTY_PATH)
1413
1414 const_iv (MOVE_MOUNT_F_SYMLINKS)
1415 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1416 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1417 const_iv (MOVE_MOUNT_T_SYMLINKS)
1418 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1419 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1420
1421 /* waitid */
1422 const_iv (P_PID)
1423 const_iv (P_PIDFD)
1424 const_iv (P_PGID)
1425 const_iv (P_ALL)
1426
1427 const_iv (FSCONFIG_SET_FLAG)
1428 const_iv (FSCONFIG_SET_STRING)
1429 const_iv (FSCONFIG_SET_BINARY)
1430 const_iv (FSCONFIG_SET_PATH)
1431 const_iv (FSCONFIG_SET_PATH_EMPTY)
1432 const_iv (FSCONFIG_SET_FD)
1433 const_iv (FSCONFIG_CMD_CREATE)
1434 const_iv (FSCONFIG_CMD_RECONFIGURE)
1435
1436 const_iv (MOUNT_ATTR_RDONLY)
1437 const_iv (MOUNT_ATTR_NOSUID)
1438 const_iv (MOUNT_ATTR_NODEV)
1439 const_iv (MOUNT_ATTR_NOEXEC)
1440 const_iv (MOUNT_ATTR__ATIME)
1441 const_iv (MOUNT_ATTR_RELATIME)
1442 const_iv (MOUNT_ATTR_NOATIME)
1443 const_iv (MOUNT_ATTR_STRICTATIME)
1444 const_iv (MOUNT_ATTR_NODIRATIME)
1445
1446 /* sys/mount.h */
1447 const_iv (MS_RDONLY)
1448 const_iv (MS_NOSUID)
1449 const_iv (MS_NODEV)
1450 const_iv (MS_NOEXEC)
1451 const_iv (MS_SYNCHRONOUS)
1452 const_iv (MS_REMOUNT)
1453 const_iv (MS_MANDLOCK)
1454 const_iv (MS_DIRSYNC)
1455 const_iv (MS_NOATIME)
1456 const_iv (MS_NODIRATIME)
1457 const_iv (MS_BIND)
1458 const_iv (MS_MOVE)
1459 const_iv (MS_REC)
1460 const_iv (MS_SILENT)
1461 const_iv (MS_POSIXACL)
1462 const_iv (MS_UNBINDABLE)
1463 const_iv (MS_PRIVATE)
1464 const_iv (MS_SLAVE)
1465 const_iv (MS_SHARED)
1466 const_iv (MS_RELATIME)
1467 const_iv (MS_KERNMOUNT)
1468 const_iv (MS_I_VERSION)
1469 const_iv (MS_STRICTATIME)
1470 const_iv (MS_LAZYTIME)
1471 const_iv (MS_ACTIVE)
1472 const_iv (MS_NOUSER)
1473 const_iv (MS_RMT_MASK)
1474 const_iv (MS_MGC_VAL)
1475 const_iv (MS_MGC_MSK)
1476
1477 const_iv (MNT_FORCE)
1478 const_iv (MNT_DETACH)
1479 const_iv (MNT_EXPIRE)
1480 const_iv (UMOUNT_NOFOLLOW)
1481
1482 const_iv (BLKROSET)
1483 const_iv (BLKROGET)
1484 const_iv (BLKRRPART)
1485 const_iv (BLKGETSIZE)
1486 const_iv (BLKFLSBUF)
1487 const_iv (BLKRASET)
1488 const_iv (BLKRAGET)
1489 const_iv (BLKFRASET)
1490 const_iv (BLKFRAGET)
1491 const_iv (BLKSECTSET)
1492 const_iv (BLKSECTGET)
1493 const_iv (BLKSSZGET)
1494 const_iv (BLKBSZGET)
1495 const_iv (BLKBSZSET)
1496 const_iv (BLKGETSIZE64)
1497
1498 /* these are libeio constants, and are independent of gendef0 */
1499 const_eio (SEEK_SET)
1500 const_eio (SEEK_CUR)
1501 const_eio (SEEK_END)
1502
1503 const_eio (MCL_FUTURE)
1504 const_eio (MCL_CURRENT)
1505 const_eio (MCL_ONFAULT)
1506
1507 const_eio (MS_ASYNC)
1508 const_eio (MS_INVALIDATE)
1509 const_eio (MS_SYNC)
1510
1511 const_eio (MT_MODIFY)
1512
1513 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1514 const_eio (SYNC_FILE_RANGE_WRITE)
1515 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1516
1517 const_eio (FALLOC_FL_KEEP_SIZE)
1518 const_eio (FALLOC_FL_PUNCH_HOLE)
1519 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1520 const_eio (FALLOC_FL_ZERO_RANGE)
1521 const_eio (FALLOC_FL_INSERT_RANGE)
1522 const_eio (FALLOC_FL_UNSHARE_RANGE)
1523
1524 const_eio (RENAME_NOREPLACE)
1525 const_eio (RENAME_EXCHANGE)
1526 const_eio (RENAME_WHITEOUT)
1527
1528 const_eio (READDIR_DENTS)
1529 const_eio (READDIR_DIRS_FIRST)
1530 const_eio (READDIR_STAT_ORDER)
1531 const_eio (READDIR_FOUND_UNKNOWN)
1532
1533 const_eio (DT_UNKNOWN)
1534 const_eio (DT_FIFO)
1535 const_eio (DT_CHR)
1536 const_eio (DT_DIR)
1537 const_eio (DT_BLK)
1538 const_eio (DT_REG)
1539 const_eio (DT_LNK)
1540 const_eio (DT_SOCK)
1541 const_eio (DT_WHT)
1542 };
1543
1544 aio_stash = gv_stashpv ("IO::AIO" , 1);
1545 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1546 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1547 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1548
1549 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1550 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1551
1552 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1553
1554 /* allocate dummy pipe fd for aio_close */
645 { 1555 {
646 off_t sbytes; 1556 int pipefd [2];
647 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
648 1557
649 if (res < 0 && sbytes) 1558 if (
650 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ 1559#ifdef _WIN32
651 res = sbytes; 1560 _pipe (pipefd, 1, _O_BINARY) < 0
1561#else
1562 pipe (pipefd) < 0
1563 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1564#endif
1565 || close (pipefd [1]) < 0
1566 )
1567 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1568
1569 close_fd = pipefd [0];
652 } 1570 }
653 1571
654# elif __hpux 1572 reinit ();
655 res = sendfile (ofd, ifd, offset, count, 0, 0); 1573}
656 1574
657# elif __solaris 1575void
1576reinit ()
1577 PROTOTYPE:
1578
1579void
1580max_poll_reqs (unsigned int nreqs)
1581 PROTOTYPE: $
1582 CODE:
1583 eio_set_max_poll_reqs (nreqs);
1584
1585void
1586max_poll_time (double nseconds)
1587 PROTOTYPE: $
1588 CODE:
1589 eio_set_max_poll_time (nseconds);
1590
1591void
1592min_parallel (unsigned int nthreads)
1593 PROTOTYPE: $
1594 CODE:
1595 eio_set_min_parallel (nthreads);
1596
1597void
1598max_parallel (unsigned int nthreads)
1599 PROTOTYPE: $
1600 CODE:
1601 eio_set_max_parallel (nthreads);
1602
1603void
1604max_idle (unsigned int nthreads)
1605 PROTOTYPE: $
1606 CODE:
1607 eio_set_max_idle (nthreads);
1608
1609void
1610idle_timeout (unsigned int seconds)
1611 PROTOTYPE: $
1612 CODE:
1613 eio_set_idle_timeout (seconds);
1614
1615void
1616max_outstanding (unsigned int maxreqs)
1617 PROTOTYPE: $
1618 CODE:
1619 max_outstanding = maxreqs;
1620
1621void
1622aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1623 PPCODE:
1624{
1625 dREQ;
1626
1627 req->type = EIO_WD_OPEN;
1628 req_set_path1 (req, pathname);
1629
1630 REQ_SEND;
1631}
1632
1633void
1634aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1635 PPCODE:
1636{
1637 dREQ;
1638
1639 req->type = EIO_OPEN;
1640 req_set_path1 (req, pathname);
1641 req->int1 = flags;
1642 req->int2 = mode;
1643
1644 REQ_SEND;
1645}
1646
1647void
1648aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1649 ALIAS:
1650 aio_fsync = EIO_FSYNC
1651 aio_fdatasync = EIO_FDATASYNC
1652 aio_syncfs = EIO_SYNCFS
1653 PPCODE:
1654{
1655 int fd = s_fileno_croak (fh, 0);
1656 dREQ;
1657
1658 req->type = ix;
1659 req->sv1 = newSVsv (fh);
1660 req->int1 = fd;
1661
1662 REQ_SEND;
1663}
1664
1665void
1666aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1667 PPCODE:
1668{
1669 int fd = s_fileno_croak (fh, 0);
1670 dREQ;
1671
1672 req->type = EIO_SYNC_FILE_RANGE;
1673 req->sv1 = newSVsv (fh);
1674 req->int1 = fd;
1675 req->offs = offset;
1676 req->size = nbytes;
1677 req->int2 = flags;
1678
1679 REQ_SEND;
1680}
1681
1682void
1683aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1684 PPCODE:
1685{
1686 int fd = s_fileno_croak (fh, 0);
1687 dREQ;
1688
1689 req->type = EIO_FALLOCATE;
1690 req->sv1 = newSVsv (fh);
1691 req->int1 = fd;
1692 req->int2 = mode;
1693 req->offs = offset;
1694 req->size = len;
1695
1696 REQ_SEND;
1697}
1698
1699void
1700aio_close (SV *fh, SV *callback = &PL_sv_undef)
1701 PPCODE:
1702{
1703 int fd = s_fileno_croak (fh, 0);
1704 dREQ;
1705#if 0
1706 /* partially duplicate logic in s_fileno */
1707 SvGETMAGIC (fh);
1708
1709 if (SvROK (fh))
658 { 1710 {
659 struct sendfilevec vec; 1711 fh = SvRV (fh);
660 size_t sbytes; 1712 SvGETMAGIC (fh);
661
662 vec.sfv_fd = ifd;
663 vec.sfv_flag = 0;
664 vec.sfv_off = offset;
665 vec.sfv_len = count;
666
667 res = sendfilev (ofd, &vec, 1, &sbytes);
668
669 if (res < 0 && sbytes)
670 res = sbytes;
671 } 1713 }
672 1714
673# endif 1715 if (SvTYPE (fh) == SVt_PVGV)
674#else
675 res = -1;
676 errno = ENOSYS;
677#endif
678
679 if (res < 0
680 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
681#if __solaris
682 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
683#endif
684 )
685 )
686 {
687 /* emulate sendfile. this is a major pain in the ass */
688 char buf[4096];
689 res = 0;
690
691 while (count)
692 {
693 ssize_t cnt;
694
695 cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
696
697 if (cnt <= 0)
698 {
699 if (cnt && !res) res = -1;
700 break;
701 }
702
703 cnt = write (ofd, buf, cnt);
704
705 if (cnt <= 0)
706 {
707 if (cnt && !res) res = -1;
708 break;
709 }
710
711 offset += cnt;
712 res += cnt;
713 count -= cnt;
714 }
715 }
716
717 return res;
718}
719
720/* read a full directory */
721static int scandir_ (const char *path, void **namesp)
722{
723 DIR *dirp = opendir (path);
724 union
725 {
726 struct dirent d;
727 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
728 } u;
729 struct dirent *entp;
730 char *name, *names;
731 int memlen = 4096;
732 int memofs = 0;
733 int res = 0;
734 int errorno;
735
736 if (!dirp)
737 return -1;
738
739 names = malloc (memlen);
740
741 for (;;)
742 {
743 errno = 0, readdir_r (dirp, &u.d, &entp);
744
745 if (!entp)
746 break;
747
748 name = entp->d_name;
749
750 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
751 {
752 int len = strlen (name) + 1;
753
754 res++;
755
756 while (memofs + len > memlen)
757 {
758 memlen *= 2;
759 names = realloc (names, memlen);
760 if (!names)
761 break;
762 }
763
764 memcpy (names + memofs, name, len);
765 memofs += len;
766 }
767 }
768
769 errorno = errno;
770 closedir (dirp);
771
772 if (errorno)
773 {
774 free (names);
775 errno = errorno;
776 res = -1;
777 }
778
779 *namesp = (void *)names;
780 return res;
781}
782
783/*****************************************************************************/
784
785static void *aio_proc (void *thr_arg)
786{
787 aio_req req;
788 int type;
789
790 do
791 {
792 pthread_mutex_lock (&reqlock);
793
794 for (;;)
795 {
796 req = reqs;
797
798 if (reqs)
799 {
800 reqs = reqs->next;
801 if (!reqs) reqe = 0;
802 }
803
804 if (req)
805 break;
806
807 pthread_cond_wait (&reqwait, &reqlock);
808 }
809
810 pthread_mutex_unlock (&reqlock);
811
812 errno = 0; /* strictly unnecessary */
813 type = req->type; /* remember type for QUIT check */
814
815 if (!(req->flags & FLAG_CANCELLED))
816 switch (type)
817 { 1716 {
818 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 1717 /* perl filehandle */
819 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 1718 PerlIOUnix_refcnt_inc (fd);
1719 do_close ((GV *)fh, 1);
820 1720
821 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 1721 req->type = EIO_CLOSE;
822 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; 1722 req->int1 = fd;
823 1723 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
824 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
825 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
826 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
827
828 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
829 case REQ_CLOSE: req->result = close (req->fd); break;
830 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
831 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
832 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
833 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
834 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
835
836 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
837 case REQ_FSYNC: req->result = fsync (req->fd); break;
838 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
839
840 case REQ_SLEEP:
841 {
842 struct timeval tv;
843
844 tv.tv_sec = req->fd;
845 tv.tv_usec = req->fd2;
846
847 req->result = select (0, 0, 0, 0, &tv);
848 }
849
850 case REQ_GROUP:
851 case REQ_NOP:
852 case REQ_QUIT:
853 break;
854
855 default:
856 req->result = ENOSYS;
857 break;
858 } 1724 }
859
860 req->errorno = errno;
861
862 pthread_mutex_lock (&reslock);
863
864 req->next = 0;
865
866 if (rese)
867 {
868 rese->next = req;
869 rese = req;
870 }
871 else 1725 else
1726#endif
872 { 1727 {
873 rese = ress = req; 1728 /* fd number */
874 1729 req->type = EIO_DUP2;
875 /* write a dummy byte to the pipe so fh becomes ready */ 1730 req->int1 = close_fd;
876 write (respipe [1], &respipe, 1); 1731 req->sv2 = newSVsv (fh);
1732 req->int2 = fd;
877 } 1733 }
878 1734
879 pthread_mutex_unlock (&reslock); 1735 REQ_SEND;
880 }
881 while (type != REQ_QUIT);
882
883 return 0;
884} 1736}
885 1737
886/*****************************************************************************/
887
888static void atfork_prepare (void)
889{
890 pthread_mutex_lock (&reqlock);
891 pthread_mutex_lock (&reslock);
892#if !HAVE_PREADWRITE
893 pthread_mutex_lock (&preadwritelock);
894#endif
895#if !HAVE_READDIR_R
896 pthread_mutex_lock (&readdirlock);
897#endif
898}
899
900static void atfork_parent (void)
901{
902#if !HAVE_READDIR_R
903 pthread_mutex_unlock (&readdirlock);
904#endif
905#if !HAVE_PREADWRITE
906 pthread_mutex_unlock (&preadwritelock);
907#endif
908 pthread_mutex_unlock (&reslock);
909 pthread_mutex_unlock (&reqlock);
910}
911
912static void atfork_child (void)
913{
914 aio_req prv;
915
916 started = 0;
917
918 while (reqs)
919 {
920 prv = reqs;
921 reqs = prv->next;
922 req_free (prv);
923 }
924
925 reqs = reqe = 0;
926
927 while (ress)
928 {
929 prv = ress;
930 ress = prv->next;
931 req_free (prv);
932 }
933
934 ress = rese = 0;
935
936 close (respipe [0]);
937 close (respipe [1]);
938 create_pipe ();
939
940 atfork_parent ();
941}
942
943#define dREQ \
944 aio_req req; \
945 int req_pri = next_pri; \
946 next_pri = DEFAULT_PRI + PRI_BIAS; \
947 \
948 if (SvOK (callback) && !SvROK (callback)) \
949 croak ("callback must be undef or of reference type"); \
950 \
951 Newz (0, req, 1, aio_cb); \
952 if (!req) \
953 croak ("out of memory during aio_req allocation"); \
954 \
955 req->callback = newSVsv (callback); \
956 req->pri = req_pri
957
958#define REQ_SEND \
959 req_send (req); \
960 \
961 if (GIMME_V != G_VOID) \
962 XPUSHs (req_sv (req, AIO_REQ_KLASS));
963
964MODULE = IO::AIO PACKAGE = IO::AIO
965
966PROTOTYPES: ENABLE
967
968BOOT:
969{
970 HV *stash = gv_stashpv ("IO::AIO", 1);
971 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
972 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
973 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
974
975 create_pipe ();
976 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
977}
978
979void 1738void
980min_parallel (nthreads) 1739aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
981 int nthreads
982 PROTOTYPE: $
983
984void
985max_parallel (nthreads)
986 int nthreads
987 PROTOTYPE: $
988
989int
990max_outstanding (nreqs)
991 int nreqs
992 PROTOTYPE: $
993 CODE: 1740 PPCODE:
994 RETVAL = max_outstanding;
995 max_outstanding = nreqs;
996
997void
998aio_open (pathname,flags,mode,callback=&PL_sv_undef)
999 SV * pathname
1000 int flags
1001 int mode
1002 SV * callback
1003 PROTOTYPE: $$$;$
1004 PPCODE:
1005{ 1741{
1742 int fd = s_fileno_croak (fh, 0);
1006 dREQ; 1743 dREQ;
1007 1744
1008 req->type = REQ_OPEN; 1745 req->type = EIO_SEEK;
1009 req->data = newSVsv (pathname); 1746 req->sv1 = newSVsv (fh);
1010 req->dataptr = SvPVbyte_nolen (req->data); 1747 req->int1 = fd;
1011 req->fd = flags; 1748 req->offs = SvVAL64 (offset);
1012 req->mode = mode; 1749 req->int2 = whence;
1013 1750
1014 REQ_SEND; 1751 REQ_SEND;
1015} 1752}
1016 1753
1017void 1754void
1018aio_close (fh,callback=&PL_sv_undef) 1755aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1019 SV * fh
1020 SV * callback
1021 PROTOTYPE: $;$
1022 ALIAS: 1756 ALIAS:
1023 aio_close = REQ_CLOSE
1024 aio_fsync = REQ_FSYNC
1025 aio_fdatasync = REQ_FDATASYNC
1026 PPCODE:
1027{
1028 dREQ;
1029
1030 req->type = ix;
1031 req->fh = newSVsv (fh);
1032 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1033
1034 REQ_SEND (req);
1035}
1036
1037void
1038aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1039 SV * fh
1040 UV offset
1041 UV length
1042 SV * data
1043 UV dataoffset
1044 SV * callback
1045 ALIAS:
1046 aio_read = REQ_READ 1757 aio_read = EIO_READ
1047 aio_write = REQ_WRITE 1758 aio_write = EIO_WRITE
1048 PROTOTYPE: $$$$$;$
1049 PPCODE: 1759 PPCODE:
1050{ 1760{
1051 aio_req req;
1052 STRLEN svlen; 1761 STRLEN svlen;
1762 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1053 char *svptr = SvPVbyte (data, svlen); 1763 char *svptr = SvPVbyte (data, svlen);
1054 1764 UV len = SvUV (length);
1055 SvUPGRADE (data, SVt_PV);
1056 SvPOK_on (data);
1057 1765
1058 if (dataoffset < 0) 1766 if (dataoffset < 0)
1059 dataoffset += svlen; 1767 dataoffset += svlen;
1060 1768
1061 if (dataoffset < 0 || dataoffset > svlen) 1769 if (dataoffset < 0 || dataoffset > svlen)
1062 croak ("data offset outside of string"); 1770 croak ("dataoffset outside of data scalar");
1063 1771
1064 if (ix == REQ_WRITE) 1772 if (ix == EIO_WRITE)
1065 { 1773 {
1066 /* write: check length and adjust. */ 1774 /* write: check length and adjust. */
1067 if (length < 0 || length + dataoffset > svlen) 1775 if (!SvOK (length) || len + dataoffset > svlen)
1068 length = svlen - dataoffset; 1776 len = svlen - dataoffset;
1069 } 1777 }
1070 else 1778 else
1071 { 1779 {
1072 /* read: grow scalar as necessary */ 1780 /* read: check type and grow scalar as necessary */
1781 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1073 svptr = SvGROW (data, length + dataoffset); 1782 svptr = sv_grow (data, len + dataoffset + 1);
1783 else if (SvCUR (data) < len + dataoffset)
1784 croak ("length + dataoffset outside of scalar, and cannot grow");
1074 } 1785 }
1075
1076 if (length < 0)
1077 croak ("length must not be negative");
1078 1786
1079 { 1787 {
1080 dREQ; 1788 dREQ;
1081 1789
1082 req->type = ix; 1790 req->type = ix;
1083 req->fh = newSVsv (fh); 1791 req->sv1 = newSVsv (fh);
1084 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1792 req->int1 = fd;
1085 : IoOFP (sv_2io (fh))); 1793 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1086 req->offset = offset; 1794 req->size = len;
1087 req->length = length;
1088 req->data = SvREFCNT_inc (data); 1795 req->sv2 = SvREFCNT_inc (data);
1089 req->dataptr = (char *)svptr + dataoffset; 1796 req->ptr2 = (char *)svptr + dataoffset;
1797 req->stroffset = dataoffset;
1090 1798
1091 if (!SvREADONLY (data)) 1799 if (!SvREADONLY (data))
1092 { 1800 {
1093 SvREADONLY_on (data); 1801 SvREADONLY_on (data);
1094 req->data2ptr = (void *)data; 1802 req->flags |= FLAG_SV2_RO_OFF;
1095 } 1803 }
1096 1804
1097 REQ_SEND; 1805 REQ_SEND;
1098 } 1806 }
1099} 1807}
1100 1808
1101void 1809void
1102aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1810aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1103 SV * out_fh 1811 ALIAS:
1104 SV * in_fh 1812 aio_ioctl = EIO_IOCTL
1105 UV in_offset 1813 aio_fcntl = EIO_FCNTL
1106 UV length
1107 SV * callback
1108 PROTOTYPE: $$$$;$
1109 PPCODE: 1814 PPCODE:
1110{ 1815{
1111 dREQ; 1816 int fd = s_fileno_croak (fh, 0);
1817 char *svptr;
1112 1818
1113 req->type = REQ_SENDFILE; 1819 if (SvPOK (arg) || !SvNIOK (arg))
1114 req->fh = newSVsv (out_fh);
1115 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1116 req->fh2 = newSVsv (in_fh);
1117 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1118 req->offset = in_offset;
1119 req->length = length;
1120
1121 REQ_SEND;
1122}
1123
1124void
1125aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1126 SV * fh
1127 UV offset
1128 IV length
1129 SV * callback
1130 PROTOTYPE: $$$;$
1131 PPCODE:
1132{
1133 dREQ;
1134
1135 req->type = REQ_READAHEAD;
1136 req->fh = newSVsv (fh);
1137 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1138 req->offset = offset;
1139 req->length = length;
1140
1141 REQ_SEND;
1142}
1143
1144void
1145aio_stat (fh_or_path,callback=&PL_sv_undef)
1146 SV * fh_or_path
1147 SV * callback
1148 ALIAS:
1149 aio_stat = REQ_STAT
1150 aio_lstat = REQ_LSTAT
1151 PPCODE:
1152{
1153 dREQ;
1154
1155 New (0, req->statdata, 1, Stat_t);
1156 if (!req->statdata)
1157 { 1820 {
1158 req_free (req); 1821 STRLEN svlen;
1159 croak ("out of memory during aio_req->statdata allocation"); 1822 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1160 } 1823#ifdef IOCPARM_LEN
1824 STRLEN need = IOCPARM_LEN (request);
1825#else
1826 STRLEN need = 256;
1827#endif
1161 1828
1162 if (SvPOK (fh_or_path)) 1829 if (svlen < need)
1163 { 1830 svptr = SvGROW (arg, need);
1164 req->type = ix;
1165 req->data = newSVsv (fh_or_path);
1166 req->dataptr = SvPVbyte_nolen (req->data);
1167 } 1831 }
1168 else 1832 else
1833 svptr = (char *)SvIV (arg);
1834
1169 { 1835 {
1836 dREQ;
1837
1170 req->type = REQ_FSTAT; 1838 req->type = ix;
1171 req->fh = newSVsv (fh_or_path); 1839 req->sv1 = newSVsv (fh);
1172 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1840 req->int1 = fd;
1841 req->int2 = (long)request;
1842 req->sv2 = SvREFCNT_inc (arg);
1843 req->ptr2 = svptr;
1844
1845 REQ_SEND;
1173 } 1846 }
1847}
1848
1849void
1850aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1851 ALIAS:
1852 aio_readlink = EIO_READLINK
1853 aio_realpath = EIO_REALPATH
1854 PPCODE:
1855{
1856 dREQ;
1857
1858 req->type = ix;
1859 req_set_path1 (req, pathname);
1174 1860
1175 REQ_SEND; 1861 REQ_SEND;
1176} 1862}
1177 1863
1178void 1864void
1179aio_unlink (pathname,callback=&PL_sv_undef) 1865aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1180 SV * pathname 1866 PPCODE:
1181 SV * callback 1867{
1868 int ifd = s_fileno_croak (in_fh , 0);
1869 int ofd = s_fileno_croak (out_fh, 1);
1870 dREQ;
1871
1872 req->type = EIO_SENDFILE;
1873 req->sv1 = newSVsv (out_fh);
1874 req->int1 = ofd;
1875 req->sv2 = newSVsv (in_fh);
1876 req->int2 = ifd;
1877 req->offs = in_offset;
1878 req->size = length;
1879
1880 REQ_SEND;
1881}
1882
1883void
1884aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1885 PPCODE:
1886{
1887 int fd = s_fileno_croak (fh, 0);
1888 dREQ;
1889
1890 req->type = EIO_READAHEAD;
1891 req->sv1 = newSVsv (fh);
1892 req->int1 = fd;
1893 req->offs = offset;
1894 req->size = length;
1895
1896 REQ_SEND;
1897}
1898
1899void
1900aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1182 ALIAS: 1901 ALIAS:
1902 aio_stat = EIO_STAT
1903 aio_lstat = EIO_LSTAT
1904 aio_statvfs = EIO_STATVFS
1905 PPCODE:
1906{
1907 dREQ;
1908
1909 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1910
1911 REQ_SEND;
1912}
1913
1914void
1915st_xtime ()
1916 ALIAS:
1917 st_atime = 0x01
1918 st_mtime = 0x02
1919 st_ctime = 0x04
1920 st_btime = 0x08
1921 st_xtime = 0x0f
1922 PPCODE:
1923 EXTEND (SP, 4);
1924 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1925 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1926 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1927 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1928
1929void
1930st_xtimensec ()
1931 ALIAS:
1932 st_atimensec = 0x01
1933 st_mtimensec = 0x02
1934 st_ctimensec = 0x04
1935 st_btimensec = 0x08
1936 st_xtimensec = 0x0f
1937 st_btimesec = 0x10
1938 st_gen = 0x20
1939 PPCODE:
1940 EXTEND (SP, 4);
1941 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1942 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1943 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1944 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1945 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1946 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1947
1948UV
1949major (UV dev)
1950 ALIAS:
1951 minor = 1
1952 CODE:
1953 RETVAL = ix ? minor (dev) : major (dev);
1954 OUTPUT:
1955 RETVAL
1956
1957UV
1958makedev (UV maj, UV min)
1959 CODE:
1960 RETVAL = makedev (maj, min);
1961 OUTPUT:
1962 RETVAL
1963
1964void
1965aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1966 PPCODE:
1967{
1968 dREQ;
1969
1970 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1971 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1972 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1973
1974 REQ_SEND;
1975}
1976
1977void
1978aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1979 PPCODE:
1980{
1981 dREQ;
1982
1983 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1984 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1985
1986 REQ_SEND;
1987}
1988
1989void
1990aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1991 PPCODE:
1992{
1993 dREQ;
1994
1995 req->int2 = mode;
1996 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1997
1998 REQ_SEND;
1999}
2000
2001void
2002aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
2003 PPCODE:
2004{
2005 dREQ;
2006
2007 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
2008 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
2009 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
2010
2011 REQ_SEND;
2012}
2013
2014void
2015aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
2016 PPCODE:
2017{
2018 dREQ;
2019
2020 req->type = EIO_READDIR;
2021 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
2022
2023 if (flags & EIO_READDIR_DENTS)
2024 req->int1 |= EIO_READDIR_CUSTOM2;
2025
2026 req_set_path1 (req, pathname);
2027
2028 REQ_SEND;
2029}
2030
2031void
2032aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
2033 PPCODE:
2034{
2035 dREQ;
2036
2037 req->type = EIO_MKDIR;
2038 req->int2 = mode;
2039 req_set_path1 (req, pathname);
2040
2041 REQ_SEND;
2042}
2043
2044void
2045aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
2046 ALIAS:
1183 aio_unlink = REQ_UNLINK 2047 aio_unlink = EIO_UNLINK
1184 aio_rmdir = REQ_RMDIR 2048 aio_rmdir = EIO_RMDIR
1185 aio_readdir = REQ_READDIR 2049 aio_readdir = EIO_READDIR
1186 PPCODE: 2050 PPCODE:
1187{ 2051{
1188 dREQ; 2052 dREQ;
1189 2053
1190 req->type = ix; 2054 req->type = ix;
1191 req->data = newSVsv (pathname); 2055 req_set_path1 (req, pathname);
1192 req->dataptr = SvPVbyte_nolen (req->data); 2056
1193
1194 REQ_SEND; 2057 REQ_SEND;
1195} 2058}
1196 2059
1197void 2060void
1198aio_link (oldpath,newpath,callback=&PL_sv_undef) 2061aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1199 SV * oldpath
1200 SV * newpath
1201 SV * callback
1202 ALIAS: 2062 ALIAS:
1203 aio_link = REQ_LINK 2063 aio_link = EIO_LINK
1204 aio_symlink = REQ_SYMLINK 2064 aio_symlink = EIO_SYMLINK
1205 aio_rename = REQ_RENAME 2065 aio_rename = EIO_RENAME
1206 PPCODE: 2066 PPCODE:
1207{ 2067{
2068 eio_wd wd2 = 0;
1208 dREQ; 2069 dREQ;
1209 2070
1210 req->type = ix; 2071 req->type = ix;
1211 req->fh = newSVsv (oldpath); 2072 req_set_path1 (req, oldpath);
1212 req->data2ptr = SvPVbyte_nolen (req->fh); 2073 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1213 req->data = newSVsv (newpath); 2074 req->int3 = (long)wd2;
1214 req->dataptr = SvPVbyte_nolen (req->data);
1215 2075
1216 REQ_SEND; 2076 REQ_SEND;
1217} 2077}
1218 2078
1219void 2079void
1220aio_sleep (delay,callback=&PL_sv_undef) 2080aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1221 double delay
1222 SV * callback
1223 PPCODE: 2081 PPCODE:
1224{ 2082{
2083 eio_wd wd2 = 0;
1225 dREQ; 2084 dREQ;
1226 2085
1227 req->type = REQ_SLEEP; 2086 req->type = EIO_RENAME;
1228 req->fd = delay < 0. ? 0 : delay; 2087 req_set_path1 (req, oldpath);
1229 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 2088 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1230 2089 req->int2 = flags;
2090 req->int3 = (long)wd2;
2091
1231 REQ_SEND; 2092 REQ_SEND;
1232} 2093}
1233 2094
1234void 2095void
1235aio_group (callback=&PL_sv_undef) 2096aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1236 SV * callback 2097 PPCODE:
1237 PROTOTYPE: ;$ 2098{
2099 dREQ;
2100
2101 req->type = EIO_MKNOD;
2102 req->int2 = (mode_t)mode;
2103 req->offs = dev;
2104 req_set_path1 (req, pathname);
2105
2106 REQ_SEND;
2107}
2108
2109void
2110aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
2111 ALIAS:
2112 aio_mtouch = EIO_MTOUCH
2113 aio_msync = EIO_MSYNC
1238 PPCODE: 2114 PPCODE:
1239{ 2115{
2116 STRLEN svlen;
2117 char *svptr = SvPVbyte (data, svlen);
2118 UV len = SvUV (length);
2119
2120 if (flags < 0)
2121 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
2122
2123 if (offset < 0)
2124 offset += svlen;
2125
2126 if (offset < 0 || offset > svlen)
2127 croak ("offset outside of scalar");
2128
2129 if (!SvOK (length) || len + offset > svlen)
2130 len = svlen - offset;
2131
2132 {
2133 dREQ;
2134
2135 req->type = ix;
2136 req->sv2 = SvREFCNT_inc (data);
2137 req->ptr2 = (char *)svptr + offset;
2138 req->size = len;
2139 req->int1 = flags;
2140
2141 REQ_SEND;
2142 }
2143}
2144
2145void
2146aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2147 PPCODE:
2148{
2149 STRLEN svlen;
2150 char *svptr = SvPVbyte (data, svlen);
2151 UV len = SvUV (length);
2152
2153 if (offset < 0)
2154 offset += svlen;
2155
2156 if (offset < 0 || offset > svlen)
2157 croak ("offset outside of scalar");
2158
2159 if (!SvOK (length) || len + offset > svlen)
2160 len = svlen - offset;
2161
2162 {
2163 dREQ;
2164
2165 req->type = EIO_MLOCK;
2166 req->sv2 = SvREFCNT_inc (data);
2167 req->ptr2 = (char *)svptr + offset;
2168 req->size = len;
2169
2170 REQ_SEND;
2171 }
2172}
2173
2174void
2175aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2176 PPCODE:
2177{
2178 dREQ;
2179
2180 req->type = EIO_MLOCKALL;
2181 req->int1 = flags;
2182
2183 REQ_SEND;
2184}
2185
2186void
2187aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2188 PPCODE:
2189{
2190 int fd = s_fileno_croak (fh, 0);
1240 dREQ; 2191 dREQ;
1241 2192
1242 req->type = REQ_GROUP; 2193 req->type = EIO_CUSTOM;
1243 req_send (req); 2194 req->sv1 = newSVsv (fh);
2195 req->int1 = fd;
1244 2196
1245 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2197 req->feed = fiemap;
1246} 2198#if HAVE_FIEMAP
2199 /* keep our fingers crossed that the next two types are 64 bit */
2200 req->offs = start;
2201 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2202 req->int2 = flags;
2203 req->int3 = SvOK (count) ? SvIV (count) : -1;
2204#endif
1247 2205
2206 REQ_SEND;
2207}
2208
1248void 2209void
1249aio_nop (callback=&PL_sv_undef) 2210aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1250 SV * callback 2211 PPCODE:
2212{
2213 char *svptr = 0;
2214
2215 sv_clear_foreign (data);
2216
2217 if (length) /* known length, directly read into scalar */
2218 {
2219 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2220 svptr = sv_grow (data, length + 1);
2221 else if (SvCUR (data) < length)
2222 croak ("length outside of scalar, and cannot grow");
2223 else
2224 svptr = SvPVbyte_nolen (data);
2225 }
2226
2227 {
2228 dREQ;
2229
2230 req->type = EIO_SLURP;
2231 req_set_path1 (req, pathname);
2232 req->offs = offset;
2233 req->size = length;
2234 req->sv2 = SvREFCNT_inc (data);
2235 req->ptr2 = svptr;
2236
2237 if (!SvREADONLY (data))
2238 {
2239 SvREADONLY_on (data);
2240 req->flags |= FLAG_SV2_RO_OFF;
2241 }
2242
2243 REQ_SEND;
2244 }
2245}
2246
2247void
2248aio_busy (double delay, SV *callback = &PL_sv_undef)
1251 PPCODE: 2249 PPCODE:
1252{ 2250{
1253 dREQ; 2251 dREQ;
1254 2252
1255 req->type = REQ_NOP; 2253 req->type = EIO_BUSY;
2254 req->nv1 = delay < 0. ? 0. : delay;
1256 2255
1257 REQ_SEND; 2256 REQ_SEND;
1258} 2257}
1259 2258
1260#if 0
1261
1262void 2259void
1263aio_pri (int pri = DEFAULT_PRI) 2260aio_group (SV *callback = &PL_sv_undef)
2261 PPCODE:
2262{
2263 dREQ;
2264
2265 req->type = EIO_GROUP;
2266
2267 PUTBACK;
2268 req_submit (req);
2269 SPAGAIN;
2270
2271 XPUSHs (req_sv (req, aio_grp_stash));
2272}
2273
2274void
2275aio_nop (SV *callback = &PL_sv_undef)
2276 ALIAS:
2277 aio_nop = EIO_NOP
2278 aio_sync = EIO_SYNC
2279 PPCODE:
2280{
2281 dREQ;
2282
2283 req->type = ix;
2284
2285 REQ_SEND;
2286}
2287
2288int
2289aioreq_pri (int pri = NO_INIT)
1264 CODE: 2290 CODE:
2291 RETVAL = next_pri;
2292 if (items > 0)
2293 {
1265 if (pri < PRI_MIN) pri = PRI_MIN; 2294 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1266 if (pri > PRI_MAX) pri = PRI_MAX; 2295 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1267 next_pri = pri + PRI_BIAS; 2296 next_pri = pri;
2297 }
2298 OUTPUT:
2299 RETVAL
1268 2300
1269#endif 2301void
2302aioreq_nice (int nice = 0)
2303 CODE:
2304 nice = next_pri - nice;
2305 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
2306 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
2307 next_pri = nice;
1270 2308
1271void 2309void
1272flush () 2310flush ()
1273 PROTOTYPE:
1274 CODE: 2311 CODE:
1275 while (nreqs) 2312 while (eio_nreqs ())
1276 { 2313 {
1277 poll_wait (); 2314 poll_wait ();
1278 poll_cb (); 2315 poll_cb ();
1279 } 2316 }
1280 2317
1281void 2318int
1282poll() 2319poll ()
1283 PROTOTYPE:
1284 CODE: 2320 CODE:
1285 if (nreqs)
1286 {
1287 poll_wait (); 2321 poll_wait ();
1288 poll_cb (); 2322 RETVAL = poll_cb ();
1289 }
1290
1291int
1292poll_fileno()
1293 PROTOTYPE:
1294 CODE:
1295 RETVAL = respipe [0];
1296 OUTPUT: 2323 OUTPUT:
1297 RETVAL 2324 RETVAL
1298 2325
1299int 2326int
2327poll_fileno ()
2328 CODE:
2329 RETVAL = s_epipe_fd (&respipe);
2330 OUTPUT:
2331 RETVAL
2332
2333int
1300poll_cb(...) 2334poll_cb (...)
1301 PROTOTYPE: 2335 PROTOTYPE:
1302 CODE: 2336 CODE:
1303 RETVAL = poll_cb (); 2337 RETVAL = poll_cb ();
1304 OUTPUT: 2338 OUTPUT:
1305 RETVAL 2339 RETVAL
1306 2340
1307void 2341void
1308poll_wait() 2342poll_wait ()
2343 CODE:
2344 poll_wait ();
2345
2346int
2347nreqs ()
2348 CODE:
2349 RETVAL = eio_nreqs ();
2350 OUTPUT:
2351 RETVAL
2352
2353int
2354nready ()
2355 CODE:
2356 RETVAL = eio_nready ();
2357 OUTPUT:
2358 RETVAL
2359
2360int
2361npending ()
2362 CODE:
2363 RETVAL = eio_npending ();
2364 OUTPUT:
2365 RETVAL
2366
2367int
2368nthreads ()
2369 CODE:
2370 RETVAL = eio_nthreads ();
2371 OUTPUT:
2372 RETVAL
2373
2374int
2375fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2376 CODE:
2377 RETVAL = posix_fadvise (fh, offset, length, advice);
2378 OUTPUT:
2379 RETVAL
2380
2381IV
2382sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2383 CODE:
2384 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2385 OUTPUT:
2386 RETVAL
2387
2388void
2389mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2390 PPCODE:
2391 sv_clear_foreign (scalar);
2392{
2393 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2394 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2395 if (addr == (void *)-1)
2396 XSRETURN_NO;
2397
2398 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2399
2400 if (!(prot & PROT_WRITE))
2401 SvREADONLY_on (scalar);
2402
2403 XSRETURN_YES;
2404}
2405
2406void
2407munmap (SV *scalar)
2408 CODE:
2409 sv_clear_foreign (scalar);
2410
2411SV *
2412mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2413 CODE:
2414{
2415 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2416 void *new;
2417
2418 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2419 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2420
2421 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2422
2423 RETVAL = &PL_sv_no;
2424
2425 if (new != (void *)-1)
2426 {
2427 RETVAL = new == (void *)mg->mg_ptr
2428 ? newSVpvn ("0 but true", 10)
2429 : &PL_sv_yes;
2430
2431 mg->mg_ptr = (char *)new;
2432 mg->mg_obj = (SV *)new_length;
2433
2434 SvPVX (scalar) = mg->mg_ptr;
2435 SvCUR_set (scalar, new_length);
2436 }
2437}
2438 OUTPUT:
2439 RETVAL
2440
2441int
2442madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2443 ALIAS:
2444 mprotect = 1
2445 CODE:
2446{
2447 STRLEN svlen;
2448 void *addr = SvPVbyte (scalar, svlen);
2449 STRLEN len = SvUV (length);
2450
2451 if (offset < 0)
2452 offset += svlen;
2453
2454 if (offset < 0 || offset > svlen)
2455 croak ("offset outside of scalar");
2456
2457 if (!SvOK (length) || len + offset > svlen)
2458 len = svlen - offset;
2459
2460 addr = (void *)(((intptr_t)addr) + offset);
2461 eio_page_align (&addr, &len);
2462
2463 switch (ix)
2464 {
2465 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2466 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2467 }
2468}
2469 OUTPUT:
2470 RETVAL
2471
2472int
2473munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2474 CODE:
2475{
2476 STRLEN svlen;
2477 void *addr = SvPVbyte (scalar, svlen);
2478 size_t len = SvUV (length);
2479
2480 if (offset < 0)
2481 offset += svlen;
2482
2483 if (offset < 0 || offset > svlen)
2484 croak ("offset outside of scalar");
2485
2486 if (!SvOK (length) || len + offset > svlen)
2487 len = svlen - offset;
2488
2489 addr = (void *)(((intptr_t)addr) + offset);
2490 eio_page_align (&addr, &len);
2491#if _POSIX_MEMLOCK_RANGE
2492 RETVAL = munlock (addr, len);
2493#else
2494 RETVAL = EIO_ENOSYS ();
2495#endif
2496}
2497 OUTPUT:
2498 RETVAL
2499
2500int
2501mlockall (int flags)
2502 PROTOTYPE: $;
2503 CODE:
2504 RETVAL = eio_mlockall_sync (flags);
2505 OUTPUT:
2506 RETVAL
2507
2508int
2509munlockall ()
2510 CODE:
2511#if _POSIX_MEMLOCK
2512 munlockall ();
2513#else
2514 RETVAL = EIO_ENOSYS ();
2515#endif
2516 OUTPUT:
2517 RETVAL
2518
2519int
2520statx (SV8 *pathname, int flags, UV mask)
2521 CODE:
2522{
2523 /* undocumented, and might go away, and anyway, should use eio_statx */
2524 SV *wdsv = 0;
2525 SV *pathsv = 0;
2526 eio_wd wd = EIO_CWD;
2527 void *ptr;
2528 int res;
2529
2530 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2531 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2532
2533 SvREFCNT_dec (pathsv);
2534 SvREFCNT_dec (wdsv);
2535}
2536 OUTPUT:
2537 RETVAL
2538
2539U32
2540stx_mode ()
1309 PROTOTYPE: 2541 PROTOTYPE:
1310 CODE: 2542 CODE:
2543#if HAVE_STATX
2544 RETVAL = stx.stx_mode;
2545#else
2546 XSRETURN_UNDEF;
2547#endif
2548 OUTPUT:
2549 RETVAL
2550
2551#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2552#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2553#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2554#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2555#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2556#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2557#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2558#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2559#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2560#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2561#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2562#define STATX_OFFSET_size statx_offsetof (stx_size)
2563#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2564#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2565#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2566#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2567#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2568#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2569
2570U32
2571stx_mask ()
2572 PROTOTYPE:
2573 ALIAS:
2574 stx_mask = STATX_OFFSET_mask
2575 stx_blksize = STATX_OFFSET_blksize
2576 stx_nlink = STATX_OFFSET_nlink
2577 stx_uid = STATX_OFFSET_uid
2578 stx_gid = STATX_OFFSET_gid
2579 stx_rdev_major = STATX_OFFSET_rdev_major
2580 stx_rdev_minor = STATX_OFFSET_rdev_minor
2581 stx_dev_major = STATX_OFFSET_dev_major
2582 stx_dev_minor = STATX_OFFSET_dev_minor
2583 CODE:
2584#if HAVE_STATX
2585 RETVAL = *(__u32 *)((char *)&stx + ix);
2586#else
2587 XSRETURN_UNDEF;
2588#endif
2589 OUTPUT:
2590 RETVAL
2591
2592VAL64
2593stx_attributes ()
2594 PROTOTYPE:
2595 ALIAS:
2596 stx_attributes = STATX_OFFSET_attributes
2597 stx_ino = STATX_OFFSET_ino
2598 stx_size = STATX_OFFSET_size
2599 stx_blocks = STATX_OFFSET_blocks
2600 stx_attributes_mask = STATX_OFFSET_attributes_mask
2601 CODE:
2602#if HAVE_STATX
2603 RETVAL = *(__u64 *)((char *)&stx + ix);
2604#else
2605 XSRETURN_UNDEF;
2606#endif
2607 OUTPUT:
2608 RETVAL
2609
2610NV
2611stx_atime ()
2612 PROTOTYPE:
2613 ALIAS:
2614 stx_atime = STATX_OFFSET_atime
2615 stx_btime = STATX_OFFSET_btime
2616 stx_ctime = STATX_OFFSET_ctime
2617 stx_mtime = STATX_OFFSET_mtime
2618 CODE:
2619#if HAVE_STATX
2620 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2621 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2622#else
2623 XSRETURN_UNDEF;
2624#endif
2625 OUTPUT:
2626 RETVAL
2627
2628VAL64
2629stx_atimesec ()
2630 PROTOTYPE:
2631 ALIAS:
2632 stx_atimesec = STATX_OFFSET_atime
2633 stx_btimesec = STATX_OFFSET_btime
2634 stx_ctimesec = STATX_OFFSET_ctime
2635 stx_mtimesec = STATX_OFFSET_mtime
2636 CODE:
2637#if HAVE_STATX
2638 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2639 RETVAL = ts->tv_sec;
2640#else
2641 XSRETURN_UNDEF;
2642#endif
2643 OUTPUT:
2644 RETVAL
2645
2646U32
2647stx_atimensec ()
2648 PROTOTYPE:
2649 ALIAS:
2650 stx_atimensec = STATX_OFFSET_atime
2651 stx_btimensec = STATX_OFFSET_btime
2652 stx_ctimensec = STATX_OFFSET_ctime
2653 stx_mtimensec = STATX_OFFSET_mtime
2654 CODE:
2655#if HAVE_STATX
2656 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2657 RETVAL = ts->tv_nsec;
2658#else
2659 RETVAL = 0;
2660#endif
2661 OUTPUT:
2662 RETVAL
2663
2664void
2665accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2666 PPCODE:
2667{
2668 SV *retval;
2669#if HAVE_ACCEPT4
2670 socklen_t salen_ = salen ? salen + 1 : 0;
2671
1311 if (nreqs) 2672 if (salen)
1312 poll_wait (); 2673 {
2674 sv_upgrade (sockaddr, SVt_PV);
2675 sv_grow (sockaddr, salen_);
2676 }
2677
2678 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2679
2680 retval = newmortalFH (res, O_RDWR);
2681
2682 if (res >= 0 && salen > 0)
2683 {
2684 if (salen_ > salen + 1)
2685 salen_ = salen + 1;
2686
2687 SvPOK_only (sockaddr);
2688 SvCUR_set (sockaddr, salen_);
2689 }
2690#else
2691 errno = ENOSYS;
2692 retval = &PL_sv_undef;
2693#endif
2694 XPUSHs (retval);
2695}
2696
2697ssize_t
2698splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2699 CODE:
2700{
2701#if HAVE_LINUX_SPLICE
2702 loff_t off_in_, off_out_;
2703 RETVAL = splice (
2704 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2705 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2706 length, flags
2707 );
2708#else
2709 RETVAL = EIO_ENOSYS ();
2710#endif
2711}
2712 OUTPUT:
2713 RETVAL
2714
2715ssize_t
2716tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2717 CODE:
2718#if HAVE_LINUX_SPLICE
2719 RETVAL = tee (rfh, wfh, length, flags);
2720#else
2721 RETVAL = EIO_ENOSYS ();
2722#endif
2723 OUTPUT:
2724 RETVAL
1313 2725
1314int 2726int
1315nreqs() 2727pipesize (aio_rfd rfh, int new_size = -1)
2728 PROTOTYPE: $;$
2729 CODE:
2730#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2731 if (new_size >= 0)
2732 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2733 else
2734 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2735#else
2736 errno = ENOSYS;
2737 RETVAL = -1;
2738#endif
2739 OUTPUT:
2740 RETVAL
2741
2742void
2743pipe2 (int flags = 0)
1316 PROTOTYPE: 2744 PROTOTYPE: ;$
2745 PPCODE:
2746{
2747 int fd[2];
2748 int res;
2749
2750 if (flags)
2751#if HAVE_PIPE2
2752 res = pipe2 (fd, flags);
2753#else
2754 res = (errno = ENOSYS, -1);
2755#endif
2756 else
2757 res = pipe (fd);
2758
2759 if (!res)
2760 {
2761 EXTEND (SP, 2);
2762 PUSHs (newmortalFH (fd[0], O_RDONLY));
2763 PUSHs (newmortalFH (fd[1], O_WRONLY));
2764 }
2765}
2766
2767void
2768pidfd_open (int pid, unsigned int flags = 0)
2769 PPCODE:
2770{
2771 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2772 int fd = syscall (SYS_pidfd_open, pid, flags);
2773 XPUSHs (newmortalFH (fd, O_RDWR));
2774}
2775
2776int
2777pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
2778 PPCODE:
2779{
2780 int res;
2781#if HAVE_SIGINFO_T
2782 siginfo_t si = { 0 };
2783
2784 if (SvOK (siginfo))
2785 {
2786 HV *hv;
2787 SV **svp;
2788
2789 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2790 croak ("siginfo argument must be a hashref with 'code', 'pid', 'uid' and 'value_int' or 'value_ptr' members, caught");
2791
2792 hv = (HV *)SvRV (siginfo);
2793
2794 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2795 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2796 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2797 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2798 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2799 }
2800
2801 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2802 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2803#else
2804 res = (errno = ENOSYS, -1);
2805#endif
2806
2807 XPUSHs (sv_2mortal (newSViv (res)));
2808}
2809
2810void
2811pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2812 PPCODE:
2813{
2814 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2815 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2816 XPUSHs (newmortalFH (fd, O_RDWR));
2817}
2818
2819void
2820eventfd (unsigned int initval = 0, int flags = 0)
2821 PPCODE:
2822{
2823 int fd;
2824#if HAVE_EVENTFD
2825 fd = eventfd (initval, flags);
2826#else
2827 fd = (errno = ENOSYS, -1);
2828#endif
2829
2830 XPUSHs (newmortalFH (fd, O_RDWR));
2831}
2832
2833void
2834timerfd_create (int clockid, int flags = 0)
2835 PPCODE:
2836{
2837 int fd;
2838#if HAVE_TIMERFD
2839 fd = timerfd_create (clockid, flags);
2840#else
2841 fd = (errno = ENOSYS, -1);
2842#endif
2843
2844 XPUSHs (newmortalFH (fd, O_RDWR));
2845}
2846
2847void
2848timerfd_settime (SV *fh, int flags, NV interval, NV value)
2849 PPCODE:
2850{
2851 int fd = s_fileno_croak (fh, 0);
2852#if HAVE_TIMERFD
2853 int res;
2854 struct itimerspec its, ots;
2855
2856 ts_set (&its.it_interval, interval);
2857 ts_set (&its.it_value , value);
2858 res = timerfd_settime (fd, flags, &its, &ots);
2859
2860 if (!res)
2861 {
2862 EXTEND (SP, 2);
2863 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2864 PUSHs (newSVnv (ts_get (&ots.it_value)));
2865 }
2866#else
2867 errno = ENOSYS;
2868#endif
2869}
2870
2871void
2872timerfd_gettime (SV *fh)
2873 PPCODE:
2874{
2875 int fd = s_fileno_croak (fh, 0);
2876#if HAVE_TIMERFD
2877 int res;
2878 struct itimerspec ots;
2879 res = timerfd_gettime (fd, &ots);
2880
2881 if (!res)
2882 {
2883 EXTEND (SP, 2);
2884 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2885 PUSHs (newSVnv (ts_get (&ots.it_value)));
2886 }
2887#else
2888 errno = ENOSYS;
2889#endif
2890}
2891
2892void
2893memfd_create (octet_string pathname, int flags = 0)
2894 PPCODE:
2895{
2896 int fd;
2897#if HAVE_MEMFD_CREATE
2898 fd = memfd_create (pathname, flags);
2899#else
2900 fd = (errno = ENOSYS, -1);
2901#endif
2902
2903 XPUSHs (newmortalFH (fd, O_RDWR));
2904}
2905
2906int
2907fexecve (SV *fh, SV *args, SV *envs = &PL_sv_undef)
1317 CODE: 2908 CODE:
1318 RETVAL = nreqs; 2909{
2910 int fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
2911 char **envp, **argv;
2912 argv = extract_stringvec (args, "IO::AIO::fexecve: args must be an array of strings");
2913 if (!SvOK (envs))
2914 {
2915 extern char **environ;
2916 envp = environ;
2917 }
2918 else
2919 envp = extract_stringvec (envs, "IO::AIO::fexecve: envs must be an array of strings");
2920#if HAVE_FEXECVE
2921 RETVAL = fexecve (fd, argv, envp);
2922#else
2923 RETVAL = (errno = ENOSYS, -1);
2924#endif
2925}
2926 OUTPUT: RETVAL
2927
2928int
2929mount (octet_string special, octet_string path, octet_string fstype, UV flags = 0, octet_string_ornull data = 0)
2930 CODE:
2931#if HAVE_MOUNT
2932 RETVAL = mount (special, path, fstype, flags, data);
2933#else
2934 RETVAL = (errno = ENOSYS, -1);
2935#endif
2936 OUTPUT: RETVAL
2937
2938int
2939umount (octet_string path, int flags = 0)
2940 CODE:
2941 if (flags)
2942#if HAVE_UMOUNT2
2943 RETVAL = umount2 (path, flags);
2944#else
2945 RETVAL = (errno = ENOSYS, -1);
2946#endif
2947 else
2948#if HAVE_UMOUNT
2949 RETVAL = umount (path);
2950#else
2951 RETVAL = (errno = ENOSYS, -1);
2952#endif
2953 OUTPUT: RETVAL
2954
2955UV
2956get_fdlimit ()
2957 CODE:
2958#if HAVE_RLIMITS
2959 struct rlimit rl;
2960 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2961 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2962#endif
2963 XSRETURN_UNDEF;
1319 OUTPUT: 2964 OUTPUT:
1320 RETVAL 2965 RETVAL
2966
2967void
2968min_fdlimit (UV limit = 0x7fffffffU)
2969 CODE:
2970{
2971#if HAVE_RLIMITS
2972 struct rlimit rl;
2973 rlim_t orig_rlim_max;
2974 UV bit;
2975
2976 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2977 goto fail;
2978
2979 if (rl.rlim_cur == RLIM_INFINITY)
2980 XSRETURN_YES;
2981
2982 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2983
2984 if (rl.rlim_cur < limit)
2985 {
2986 rl.rlim_cur = limit;
2987
2988 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2989 rl.rlim_max = rl.rlim_cur;
2990 }
2991
2992 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2993 XSRETURN_YES;
2994
2995 if (errno == EPERM)
2996 {
2997 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2998 /* our limit overflows a system-wide limit */
2999 /* try an adaptive algorithm, but do not lower the hardlimit */
3000 rl.rlim_max = 0;
3001 for (bit = 0x40000000U; bit; bit >>= 1)
3002 {
3003 rl.rlim_max |= bit;
3004 rl.rlim_cur = rl.rlim_max;
3005
3006 /* never decrease the hard limit */
3007 if (rl.rlim_max < orig_rlim_max)
3008 break;
3009
3010 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
3011 rl.rlim_max &= ~bit; /* too high, remove bit again */
3012 }
3013
3014 /* now, raise the soft limit to the max permitted */
3015 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
3016 {
3017 rl.rlim_cur = rl.rlim_max;
3018 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
3019 errno = EPERM;
3020 }
3021 }
3022#endif
3023 fail:
3024 XSRETURN_UNDEF;
3025}
3026
3027void _on_next_submit (SV *cb)
3028 CODE:
3029 SvREFCNT_dec (on_next_submit);
3030 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1321 3031
1322PROTOTYPES: DISABLE 3032PROTOTYPES: DISABLE
1323 3033
3034MODULE = IO::AIO PACKAGE = IO::AIO::WD
3035
3036BOOT:
3037{
3038 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
3039 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
3040}
3041
3042void
3043DESTROY (SV *self)
3044 CODE:
3045{
3046 aio_wd wd = SvAIO_WD (self);
3047#if HAVE_AT
3048 {
3049 SV *callback = &PL_sv_undef;
3050 dREQ; /* clobbers next_pri :/ */
3051 next_pri = req->pri; /* restore next_pri */
3052 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
3053 req->type = EIO_WD_CLOSE;
3054 req->wd = wd;
3055 REQ_SEND;
3056 }
3057#else
3058 eio_wd_close_sync (wd);
3059#endif
3060}
3061
1324MODULE = IO::AIO PACKAGE = IO::AIO::REQ 3062MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1325 3063
1326void 3064void
1327cancel (aio_req_ornot req) 3065cancel (aio_req_ornot req)
1328 PROTOTYPE:
1329 CODE: 3066 CODE:
1330 req_cancel (req); 3067 eio_cancel (req);
1331 3068
1332void 3069void
1333cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 3070cb (aio_req_ornot req, SV *callback = NO_INIT)
1334 CODE: 3071 PPCODE:
3072{
3073 if (GIMME_V != G_VOID)
3074 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
3075
3076 if (items > 1)
3077 {
3078 SV *cb_cv = get_cb (callback);
3079
1335 SvREFCNT_dec (req->callback); 3080 SvREFCNT_dec (req->callback);
1336 req->callback = newSVsv (callback); 3081 req->callback = SvREFCNT_inc (cb_cv);
3082 }
3083}
1337 3084
1338MODULE = IO::AIO PACKAGE = IO::AIO::GRP 3085MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1339 3086
1340void 3087void
1341add (aio_req grp, ...) 3088add (aio_req grp, ...)
1342 PPCODE: 3089 PPCODE:
1343{ 3090{
1344 int i; 3091 int i;
1345 aio_req req;
1346 3092
1347 if (grp->fd == 2) 3093 if (grp->int1 == 2)
1348 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 3094 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1349 3095
1350 for (i = 1; i < items; ++i ) 3096 for (i = 1; i < items; ++i )
1351 { 3097 {
3098 aio_req req;
3099
1352 if (GIMME_V != G_VOID) 3100 if (GIMME_V != G_VOID)
1353 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 3101 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1354 3102
1355 req = SvAIO_REQ (ST (i)); 3103 req = SvAIO_REQ (ST (i));
1356 3104
1357 if (req) 3105 if (req)
1358 { 3106 eio_grp_add (grp, req);
1359 ++grp->length;
1360 req->grp = grp;
1361
1362 req->grp_prev = 0;
1363 req->grp_next = grp->grp_first;
1364
1365 if (grp->grp_first)
1366 grp->grp_first->grp_prev = req;
1367
1368 grp->grp_first = req;
1369 }
1370 } 3107 }
1371} 3108}
3109
3110void
3111cancel_subs (aio_req_ornot req)
3112 CODE:
3113 req_cancel_subs (req);
1372 3114
1373void 3115void
1374result (aio_req grp, ...) 3116result (aio_req grp, ...)
1375 CODE: 3117 CODE:
1376{ 3118{
1377 int i; 3119 int i;
3120 AV *av;
3121
3122 grp->errorno = errno;
3123
1378 AV *av = newAV (); 3124 av = newAV ();
3125 av_extend (av, items - 1);
1379 3126
1380 for (i = 1; i < items; ++i ) 3127 for (i = 1; i < items; ++i )
1381 av_push (av, newSVsv (ST (i))); 3128 av_push (av, newSVsv (ST (i)));
1382 3129
1383 SvREFCNT_dec (grp->data); 3130 SvREFCNT_dec (grp->sv1);
1384 grp->data = (SV *)av; 3131 grp->sv1 = (SV *)av;
1385} 3132}
1386 3133
1387void 3134void
3135errno (aio_req grp, int errorno = errno)
3136 CODE:
3137 grp->errorno = errorno;
3138
3139void
1388feed_limit (aio_req grp, int limit) 3140limit (aio_req grp, int limit)
1389 CODE: 3141 CODE:
1390 grp->fd2 = limit; 3142 eio_grp_limit (grp, limit);
1391 aio_grp_feed (grp);
1392 3143
1393void 3144void
1394feed (aio_req grp, SV *callback=&PL_sv_undef) 3145feed (aio_req grp, SV *callback = &PL_sv_undef)
1395 CODE: 3146 CODE:
1396{ 3147{
1397 SvREFCNT_dec (grp->fh2); 3148 SvREFCNT_dec (grp->sv2);
1398 grp->fh2 = newSVsv (callback); 3149 grp->sv2 = newSVsv (callback);
3150 grp->feed = aio_grp_feed;
1399 3151
1400 if (grp->fd2 <= 0) 3152 if (grp->int2 <= 0)
1401 grp->fd2 = 2; 3153 grp->int2 = 2;
1402 3154
1403 aio_grp_feed (grp); 3155 eio_grp_limit (grp, grp->int2);
1404} 3156}
1405 3157

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