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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.31 by root, Thu Aug 18 16:34:53 2005 UTC vs.
Revision 1.285 by root, Tue Dec 29 15:16:28 2020 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
11# define mg_findext(sv,type,vtbl) mg_find (sv, type)
12#endif
9 13
14#include <stddef.h>
15#include <stdlib.h>
16#include <errno.h>
10#include <sys/types.h> 17#include <sys/types.h>
18#include <sys/socket.h>
11#include <sys/stat.h> 19#include <sys/stat.h>
12
13#include <unistd.h> 20#include <limits.h>
14#include <fcntl.h> 21#include <fcntl.h>
15#include <signal.h>
16#include <sched.h> 22#include <sched.h>
17 23
18#include <pthread.h> 24/* the incompetent fool that created musl keeps __linux__, refuses
25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
19 37
20typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 38/* perl namespace pollution */
21typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 39#undef VERSION
22typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */
23 40
24#if __ia64 41/* perl stupidly overrides readdir and maybe others */
25# define STACKSIZE 65536 42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
47#ifdef _WIN32
48
49 // perl overrides all those nice libc functions
50
51 #undef malloc
52 #undef free
53 #undef open
54 #undef read
55 #undef write
56 #undef send
57 #undef recv
58 #undef stat
59 #undef lstat
60 #undef fstat
61 #undef truncate
62 #undef ftruncate
63 #undef open
64 #undef link
65 #undef close
66 #undef unlink
67 #undef mkdir
68 #undef rmdir
69 #undef rename
70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
80 #undef utime
81
82 #define EIO_STRUCT_STAT struct _stati64
83 #define EIO_STRUCT_STATI64
84
26#else 85#else
27# define STACKSIZE 4096 86
87 #include <sys/time.h>
88 #include <sys/select.h>
89 #include <unistd.h>
90 #include <utime.h>
91 #include <signal.h>
92
93 #define EIO_STRUCT_STAT Stat_t
94
95#endif
96
97/*****************************************************************************/
98
99#if __GNUC__ >= 3
100# define expect(expr,value) __builtin_expect ((expr),(value))
101#else
102# define expect(expr,value) (expr)
103#endif
104
105#define expect_false(expr) expect ((expr) != 0, 0)
106#define expect_true(expr) expect ((expr) != 0, 1)
107
108/*****************************************************************************/
109
110#include "config.h"
111
112#if HAVE_SYS_MKDEV_H
113# include <sys/mkdev.h>
114#elif HAVE_SYS_SYSMACROS_H
115# include <sys/sysmacros.h>
116#endif
117
118#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
119# include <sys/mman.h>
120#endif
121
122#if HAVE_SYS_UIO_H
123# include <sys/uio.h>
124#endif
125
126#if HAVE_ST_XTIMENSEC
127# define ATIMENSEC PL_statcache.st_atimensec
128# define MTIMENSEC PL_statcache.st_mtimensec
129# define CTIMENSEC PL_statcache.st_ctimensec
130#elif HAVE_ST_XTIMESPEC
131# define ATIMENSEC PL_statcache.st_atim.tv_nsec
132# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
133# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
134#else
135# define ATIMENSEC 0
136# define MTIMENSEC 0
137# define CTIMENSEC 0
138#endif
139
140#if HAVE_ST_BIRTHTIMENSEC
141# define BTIMESEC PL_statcache.st_birthtime
142# define BTIMENSEC PL_statcache.st_birthtimensec
143#elif HAVE_ST_BIRTHTIMESPEC
144# define BTIMESEC PL_statcache.st_birthtim.tv_sec
145# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
146#else
147# define BTIMESEC 0
148# define BTIMENSEC 0
149#endif
150
151#if HAVE_ST_GEN
152# define ST_GEN PL_statcache.st_gen
153#else
154# define ST_GEN 0
155#endif
156
157#include "schmorp.h"
158
159#if HAVE_EVENTFD
160# include <sys/eventfd.h>
161#endif
162
163#if HAVE_TIMERFD
164# include <sys/timerfd.h>
165#endif
166
167#if HAVE_RLIMITS
168 #include <sys/time.h>
169 #include <sys/resource.h>
170#endif
171
172typedef SV SV8; /* byte-sv, used for argument-checking */
173typedef int aio_rfd; /* read file desriptor */
174typedef int aio_wfd; /* write file descriptor */
175
176static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
177
178#define EIO_REQ_MEMBERS \
179 SV *callback; \
180 SV *sv1, *sv2; \
181 SV *sv3, *sv4; \
182 STRLEN stroffset; \
183 SV *self;
184
185#define EIO_NO_WRAPPERS 1
186
187#include "libeio/eio.h"
188
189static int req_invoke (eio_req *req);
190#define EIO_FINISH(req) req_invoke (req)
191static void req_destroy (eio_req *grp);
192#define EIO_DESTROY(req) req_destroy (req)
193
194#include "libeio/eio.c"
195
196#if !HAVE_POSIX_FADVISE
197# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
198#endif
199
200#if !HAVE_POSIX_MADVISE
201# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
202#endif
203
204#ifndef MAP_ANONYMOUS
205# ifdef MAP_ANON
206# define MAP_ANONYMOUS MAP_ANON
207# else
208# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
28#endif 209# endif
210#endif
29 211
30enum { 212#ifndef makedev
31 REQ_QUIT, 213# define makedev(maj,min) (((maj) << 8) | (min))
32 REQ_OPEN, REQ_CLOSE, 214#endif
33 REQ_READ, REQ_WRITE, REQ_READAHEAD, 215#ifndef major
34 REQ_STAT, REQ_LSTAT, REQ_FSTAT, 216# define major(dev) ((dev) >> 8)
35 REQ_FSYNC, REQ_FDATASYNC, 217#endif
36 REQ_UNLINK, REQ_RMDIR, 218#ifndef minor
37 REQ_SYMLINK, 219# define minor(dev) ((dev) & 0xff)
220#endif
221
222/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
223#ifdef __sun
224# undef PAGESIZE
225#endif
226
227#if PAGESIZE <= 0
228# define PAGESIZE sysconf (_SC_PAGESIZE)
229#endif
230
231#if HAVE_SYSCALL
232#include <sys/syscall.h>
233#else
234# define syscall(nr,...) (errno = ENOSYS, -1)
235#endif
236
237/*****************************************************************************/
238
239#if !_POSIX_MAPPED_FILES
240# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
241# define munmap(addr,length) EIO_ENOSYS ()
242#endif
243
244#if !_POSIX_MEMORY_PROTECTION
245# define mprotect(addr,len,prot) EIO_ENOSYS ()
246#endif
247
248#if !MREMAP_MAYMOVE
249# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
250#endif
251
252#define FOREIGN_MAGIC PERL_MAGIC_ext
253
254static int ecb_cold
255mmap_free (pTHX_ SV *sv, MAGIC *mg)
256{
257 int old_errno = errno;
258 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
259 errno = old_errno;
260
261 mg->mg_obj = 0; /* just in case */
262
263 SvREADONLY_off (sv);
264
265 if (SvPVX (sv) != mg->mg_ptr)
266 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
267
268 SvCUR_set (sv, 0);
269 SvPVX (sv) = 0;
270 SvOK_off (sv);
271
272 return 0;
273}
274
275static MGVTBL mmap_vtbl = {
276 0, 0, 0, 0, mmap_free
38}; 277};
39 278
40typedef struct aio_cb { 279static int ecb_cold
41 struct aio_cb *volatile next; 280sysfree_free (pTHX_ SV *sv, MAGIC *mg)
42
43 int type;
44
45 int fd;
46 off_t offset;
47 size_t length;
48 ssize_t result;
49 mode_t mode; /* open */
50 int errorno;
51 SV *data, *callback, *fh;
52 void *dataptr, *data2ptr;
53 STRLEN dataoffset;
54
55 Stat_t *statdata;
56} aio_cb;
57
58typedef aio_cb *aio_req;
59
60static int started, wanted;
61static volatile int nreqs;
62static int max_outstanding = 1<<30;
63static int respipe [2];
64
65static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
66static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
67static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
68
69static volatile aio_req reqs, reqe; /* queue start, queue end */
70static volatile aio_req ress, rese; /* queue start, queue end */
71
72static void free_req (aio_req req)
73{ 281{
74 if (req->data) 282 free (mg->mg_ptr);
75 SvREFCNT_dec (req->data); 283 mg->mg_obj = 0; /* just in case */
76 284
77 if (req->fh) 285 SvREADONLY_off (sv);
78 SvREFCNT_dec (req->fh);
79 286
80 if (req->statdata) 287 if (SvPVX (sv) != mg->mg_ptr)
81 Safefree (req->statdata); 288 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
82 289
83 if (req->callback) 290 SvCUR_set (sv, 0);
84 SvREFCNT_dec (req->callback); 291 SvPVX (sv) = 0;
292 SvOK_off (sv);
85 293
86 Safefree (req); 294 return 0;
87} 295}
88 296
297static MGVTBL sysfree_vtbl = {
298 0, 0, 0, 0, sysfree_free
299};
300
301/*****************************************************************************/
302
303/* helper: set scalar to foreign ptr with custom free */
304ecb_noinline
89static void 305static void
90poll_wait () 306sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
91{ 307{
92 if (nreqs && !ress) 308 sv_force_normal (sv);
93 {
94 fd_set rfd;
95 FD_ZERO(&rfd);
96 FD_SET(respipe [0], &rfd);
97 309
98 select (respipe [0] + 1, &rfd, 0, 0, 0); 310 /* we store the length in mg_obj, as namlen is I32 :/ */
99 } 311 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
100} 312 ->mg_obj = (SV *)length;
101 313
314 SvUPGRADE (sv, SVt_PV); /* nop... */
315
316 if (SvLEN (sv))
317 Safefree (SvPVX (sv));
318
319 SvPVX (sv) = (char *)addr;
320 SvCUR_set (sv, length);
321 SvLEN_set (sv, 0);
322 SvPOK_only (sv);
323}
324
102static int 325static void
103poll_cb () 326sv_clear_foreign (SV *sv)
104{ 327{
105 dSP; 328 /* todo: iterate over magic and only free ours, but of course */
329 /* the perl5porters will call that (correct) behaviour buggy */
330 sv_unmagic (sv, FOREIGN_MAGIC);
331}
332
333/*****************************************************************************/
334
335/* defines all sorts of constants to 0 unless they are already defined */
336/* also provides const_iv_ and const_niv_ macros for them */
337#include "def0.h"
338
339/*****************************************************************************/
340
341static void
342fiemap (eio_req *req)
343{
344 req->result = -1;
345
346#if HAVE_FIEMAP
347 /* assume some c99 */
348 struct fiemap *fiemap = 0;
349 size_t end_offset;
350 int count = req->int3;
351
352 req->flags |= EIO_FLAG_PTR1_FREE;
353
354 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
355 /* increase in fixed steps */
356 if (count < 0)
106 int count = 0; 357 count = 8;
107 int do_croak = 0; 358
108 aio_req req; 359 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
360 errno = ENOMEM;
361 if (!fiemap)
362 return;
363
364 req->ptr1 = fiemap;
365
366 fiemap->fm_start = req->offs;
367 fiemap->fm_length = req->size;
368 fiemap->fm_flags = req->int2;
369 fiemap->fm_extent_count = count;
370
371 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
372 return;
373
374 if (req->int3 >= 0 /* not autosizing */
375 || !fiemap->fm_mapped_extents /* no more extents */
376 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
377 goto done;
378
379 /* else we have to loop -
380 * it would be tempting (actually I tried that first) to just query the
381 * number of extents needed, but linux often feels like not returning all
382 * extents, without telling us it left any out. this complicates
383 * this quite a bit.
384 */
385
386 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
109 387
110 for (;;) 388 for (;;)
111 { 389 {
112 pthread_mutex_lock (&reslock); 390 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
113 req = ress; 391 char scratch[3072];
392 struct fiemap *incmap = (struct fiemap *)scratch;
114 393
394 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
395 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
396 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
397 incmap->fm_flags = fiemap->fm_flags;
398 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
399
400 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
401 return;
402
403 if (!incmap->fm_mapped_extents)
404 goto done;
405
406 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
407 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
408 errno = ENOMEM;
115 if (req) 409 if (!fiemap)
410 return;
411
412 req->ptr1 = fiemap;
413
414 for (count = 0; count < incmap->fm_mapped_extents; ++count)
116 { 415 {
117 ress = req->next; 416 struct fiemap_extent *e = incmap->fm_extents + count;
118 417
119 if (!ress) 418 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
120 {
121 /* read any signals sent by the worker threads */
122 char buf [32];
123 while (read (respipe [0], buf, 32) == 32)
124 ;
125 419
126 rese = 0; 420 if (e->fe_logical >= end_offset)
127 } 421 goto done;
422
423 if (e->fe_flags & FIEMAP_EXTENT_LAST)
424 goto done;
425
128 } 426 }
427 }
129 428
130 pthread_mutex_unlock (&reslock); 429done:
430 req->result = 0;
131 431
132 if (!req) 432#else
133 break; 433 errno = ENOSYS;
434#endif
435}
134 436
135 nreqs--; 437/*****************************************************************************/
136 438
137 if (req->type == REQ_QUIT) 439static int close_fd; /* dummy fd to close fds via dup2 */
138 started--; 440
139 else 441#if HAVE_STATX
442static struct statx stx;
443#define statx_offsetof(member) offsetof (struct statx, member)
444#define eio__statx statx
445#else
446#define statx_offsetof(member) 0
447#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
448#endif
449
450enum {
451 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
452};
453
454typedef eio_req *aio_req;
455typedef eio_req *aio_req_ornot;
456typedef eio_wd aio_wd;
457
458static SV *on_next_submit;
459static int next_pri = EIO_PRI_DEFAULT;
460static int max_outstanding;
461
462static s_epipe respipe;
463
464static void req_destroy (aio_req req);
465static void req_cancel (aio_req req);
466
467static void
468want_poll (void)
469{
470 /* write a dummy byte to the pipe so fh becomes ready */
471 s_epipe_signal (&respipe);
472}
473
474static void
475done_poll (void)
476{
477 /* read any signals sent by the worker threads */
478 s_epipe_drain (&respipe);
479}
480
481/* must be called at most once */
482ecb_noinline
483static SV *
484req_sv (aio_req req, HV *stash)
485{
486 if (!req->self)
487 {
488 req->self = (SV *)newHV ();
489 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
490 }
491
492 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
493}
494
495static SV *
496newSVaio_wd (aio_wd wd)
497{
498 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
499}
500
501ecb_noinline
502static aio_req
503SvAIO_REQ (SV *sv)
504{
505 MAGIC *mg;
506
507 if (!SvROK (sv)
508 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
509 || (SvSTASH (SvRV (sv)) != aio_grp_stash
510 && SvSTASH (SvRV (sv)) != aio_req_stash
511 && !sv_derived_from (sv, "IO::AIO::REQ")))
512 croak ("object of class IO::AIO::REQ expected");
513
514 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
515
516 return mg ? (aio_req)mg->mg_ptr : 0;
517}
518
519static aio_wd
520SvAIO_WD (SV *sv)
521{
522 if (!SvROK (sv)
523 || SvTYPE (SvRV (sv)) != SVt_PVMG
524 || SvSTASH (SvRV (sv)) != aio_wd_stash)
525 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
526
527 return (aio_wd)(long)SvIVX (SvRV (sv));
528}
529
530static SV *
531newmortalFH (int fd, int flags)
532{
533 if (fd < 0)
534 return &PL_sv_undef;
535
536 GV *gv = (GV *)sv_newmortal ();
537 char sym[64];
538 int symlen;
539
540 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
541 gv_init (gv, aio_stash, sym, symlen, 0);
542
543 symlen = snprintf (
544 sym,
545 sizeof (sym),
546 "%s&=%d",
547 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
548 fd
549 );
550
551 return do_open (gv, sym, symlen, 0, 0, 0, 0)
552 ? (SV *)gv : &PL_sv_undef;
553}
554
555static void
556aio_grp_feed (aio_req grp)
557{
558 if (grp->sv2 && SvOK (grp->sv2))
559 {
560 dSP;
561
562 ENTER;
563 SAVETMPS;
564 PUSHMARK (SP);
565 XPUSHs (req_sv (grp, aio_grp_stash));
566 PUTBACK;
567 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
568 SPAGAIN;
569 FREETMPS;
570 LEAVE;
571 }
572}
573
574ecb_noinline
575static void
576req_submit (eio_req *req)
577{
578 eio_submit (req);
579
580 if (expect_false (on_next_submit))
581 {
582 dSP;
583 SV *cb = sv_2mortal (on_next_submit);
584
585 on_next_submit = 0;
586
587 PUSHMARK (SP);
588 PUTBACK;
589 call_sv (cb, G_DISCARD | G_EVAL);
590 }
591}
592
593static int
594req_invoke (eio_req *req)
595{
596 if (req->flags & FLAG_SV2_RO_OFF)
597 SvREADONLY_off (req->sv2);
598
599 if (!EIO_CANCELLED (req) && req->callback)
600 {
601 dSP;
602 static SV *sv_result_cache; /* caches the result integer SV */
603 SV *sv_result;
604
605 ENTER;
606 SAVETMPS;
607 PUSHMARK (SP);
608 EXTEND (SP, 1);
609
610 /* do not recreate the result IV from scratch each time */
611 if (expect_true (sv_result_cache))
140 { 612 {
141 int errorno = errno; 613 sv_result = sv_result_cache; sv_result_cache = 0;
142 errno = req->errorno; 614 SvIV_set (sv_result, req->result);
143 615 SvIOK_only (sv_result);
144 if (req->type == REQ_READ)
145 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
146
147 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
148 SvREADONLY_off (req->data);
149
150 if (req->statdata)
151 {
152 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
153 PL_laststatval = req->result;
154 PL_statcache = *(req->statdata);
155 }
156
157 ENTER;
158 PUSHMARK (SP);
159 XPUSHs (sv_2mortal (newSViv (req->result)));
160
161 if (req->type == REQ_OPEN)
162 {
163 /* convert fd to fh */
164 SV *fh;
165
166 PUTBACK;
167 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
168 SPAGAIN;
169
170 fh = SvREFCNT_inc (POPs);
171
172 PUSHMARK (SP);
173 XPUSHs (sv_2mortal (fh));
174 }
175
176 if (SvOK (req->callback))
177 {
178 PUTBACK;
179 call_sv (req->callback, G_VOID | G_EVAL);
180 SPAGAIN;
181
182 if (SvTRUE (ERRSV))
183 {
184 free_req (req);
185 croak (0);
186 }
187 }
188
189 LEAVE;
190
191 errno = errorno;
192 count++;
193 }
194
195 free_req (req);
196 }
197
198 return count;
199}
200
201static void *aio_proc(void *arg);
202
203static void
204start_thread (void)
205{
206 sigset_t fullsigset, oldsigset;
207 pthread_t tid;
208 pthread_attr_t attr;
209
210 pthread_attr_init (&attr);
211 pthread_attr_setstacksize (&attr, STACKSIZE);
212 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
213
214 sigfillset (&fullsigset);
215 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
216
217 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
218 started++;
219
220 sigprocmask (SIG_SETMASK, &oldsigset, 0);
221}
222
223static void
224send_req (aio_req req)
225{
226 while (started < wanted && nreqs >= started)
227 start_thread ();
228
229 nreqs++;
230
231 pthread_mutex_lock (&reqlock);
232
233 req->next = 0;
234
235 if (reqe)
236 {
237 reqe->next = req;
238 reqe = req;
239 }
240 else
241 reqe = reqs = req;
242
243 pthread_cond_signal (&reqwait);
244 pthread_mutex_unlock (&reqlock);
245
246 if (nreqs > max_outstanding)
247 for (;;)
248 {
249 poll_cb ();
250
251 if (nreqs <= max_outstanding)
252 break;
253
254 poll_wait ();
255 }
256}
257
258static void
259end_thread (void)
260{
261 aio_req req;
262 Newz (0, req, 1, aio_cb);
263 req->type = REQ_QUIT;
264
265 send_req (req);
266}
267
268static void min_parallel (int nthreads)
269{
270 if (wanted < nthreads)
271 wanted = nthreads;
272}
273
274static void max_parallel (int nthreads)
275{
276 int cur = started;
277
278 if (wanted > nthreads)
279 wanted = nthreads;
280
281 while (cur > wanted)
282 {
283 end_thread ();
284 cur--;
285 }
286
287 while (started > wanted)
288 {
289 poll_wait ();
290 poll_cb ();
291 }
292}
293
294static void create_pipe ()
295{
296 if (pipe (respipe))
297 croak ("unable to initialize result pipe");
298
299 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
300 croak ("cannot set result pipe to nonblocking mode");
301
302 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
303 croak ("cannot set result pipe to nonblocking mode");
304}
305
306static void atfork_prepare (void)
307{
308 pthread_mutex_lock (&reqlock);
309 pthread_mutex_lock (&reslock);
310}
311
312static void atfork_parent (void)
313{
314 pthread_mutex_unlock (&reslock);
315 pthread_mutex_unlock (&reqlock);
316}
317
318static void atfork_child (void)
319{
320 aio_req prv;
321
322 started = 0;
323
324 while (reqs)
325 {
326 prv = reqs;
327 reqs = prv->next;
328 free_req (prv);
329 }
330
331 reqs = reqe = 0;
332
333 while (ress)
334 {
335 prv = ress;
336 ress = prv->next;
337 free_req (prv);
338 }
339
340 ress = rese = 0;
341
342 close (respipe [0]);
343 close (respipe [1]);
344 create_pipe ();
345
346 atfork_parent ();
347}
348
349/*****************************************************************************/
350/* work around various missing functions */
351
352#if !HAVE_PREADWRITE
353# define pread aio_pread
354# define pwrite aio_pwrite
355
356/*
357 * make our pread/pwrite safe against themselves, but not against
358 * normal read/write by using a mutex. slows down execution a lot,
359 * but that's your problem, not mine.
360 */
361static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER;
362
363static ssize_t
364pread (int fd, void *buf, size_t count, off_t offset)
365{
366 ssize_t res;
367 off_t ooffset;
368
369 pthread_mutex_lock (&iolock);
370 ooffset = lseek (fd, 0, SEEK_CUR);
371 lseek (fd, offset, SEEK_SET);
372 res = read (fd, buf, count);
373 lseek (fd, ooffset, SEEK_SET);
374 pthread_mutex_unlock (&iolock);
375
376 return res;
377}
378
379static ssize_t
380pwrite (int fd, void *buf, size_t count, off_t offset)
381{
382 ssize_t res;
383 off_t ooffset;
384
385 pthread_mutex_lock (&iolock);
386 ooffset = lseek (fd, 0, SEEK_CUR);
387 lseek (fd, offset, SEEK_SET);
388 res = write (fd, buf, count);
389 lseek (fd, offset, SEEK_SET);
390 pthread_mutex_unlock (&iolock);
391
392 return res;
393}
394#endif
395
396#if !HAVE_FDATASYNC
397# define fdatasync fsync
398#endif
399
400#if !HAVE_READAHEAD
401# define readahead aio_readahead
402
403static char readahead_buf[4096];
404
405static ssize_t
406readahead (int fd, off_t offset, size_t count)
407{
408 while (count > 0)
409 {
410 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
411
412 pread (fd, readahead_buf, len, offset);
413 offset += len;
414 count -= len;
415 }
416
417 errno = 0;
418}
419#endif
420
421/*****************************************************************************/
422
423static void *
424aio_proc (void *thr_arg)
425{
426 aio_req req;
427 int type;
428
429 do
430 {
431 pthread_mutex_lock (&reqlock);
432
433 for (;;)
434 {
435 req = reqs;
436
437 if (reqs)
438 {
439 reqs = reqs->next;
440 if (!reqs) reqe = 0;
441 }
442
443 if (req)
444 break;
445
446 pthread_cond_wait (&reqwait, &reqlock);
447 }
448
449 pthread_mutex_unlock (&reqlock);
450
451 errno = 0; /* strictly unnecessary */
452
453 type = req->type;
454
455 switch (type)
456 {
457 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
458 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
459
460 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
461
462 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
463 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
464 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
465
466 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
467 case REQ_CLOSE: req->result = close (req->fd); break;
468 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
469 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
470 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
471
472 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
473 case REQ_FSYNC: req->result = fsync (req->fd); break;
474
475 case REQ_QUIT:
476 break;
477
478 default:
479 req->result = ENOSYS;
480 break;
481 }
482
483 req->errorno = errno;
484
485 pthread_mutex_lock (&reslock);
486
487 req->next = 0;
488
489 if (rese)
490 {
491 rese->next = req;
492 rese = req;
493 } 616 }
494 else 617 else
495 { 618 {
496 rese = ress = req; 619 sv_result = newSViv (req->result);
497 620 SvREADONLY_on (sv_result);
498 /* write a dummy byte to the pipe so fh becomes ready */
499 write (respipe [1], &respipe, 1);
500 } 621 }
501 622
502 pthread_mutex_unlock (&reslock); 623 switch (req->type)
624 {
625 case EIO_WD_OPEN:
626 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
627 break;
628
629 case EIO_READDIR:
630 {
631 SV *rv = &PL_sv_undef;
632
633 if (req->result >= 0)
634 {
635 int i;
636 char *names = (char *)req->ptr2;
637 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
638 AV *av = newAV ();
639
640 av_extend (av, req->result - 1);
641
642 for (i = 0; i < req->result; ++i)
643 {
644 if (req->int1 & EIO_READDIR_DENTS)
645 {
646 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
647
648 if (req->int1 & EIO_READDIR_CUSTOM2)
649 {
650 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
651 AV *avent = newAV ();
652
653 av_extend (avent, 2);
654
655 if (!sv_type [ent->type])
656 {
657 sv_type [ent->type] = newSViv (ent->type);
658 SvREADONLY_on (sv_type [ent->type]);
659 }
660
661 av_store (avent, 0, namesv);
662 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
663 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
664
665 av_store (av, i, newRV_noinc ((SV *)avent));
666 }
667 else
668 av_store (av, i, namesv);
669
670 ++ent;
671 }
672 else
673 {
674 SV *name = newSVpv (names, 0);
675 av_store (av, i, name);
676 names += SvCUR (name) + 1;
677 }
678 }
679
680 rv = sv_2mortal (newRV_noinc ((SV *)av));
681 }
682
683 PUSHs (rv);
684
685 if (req->int1 & EIO_READDIR_CUSTOM1)
686 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
687 }
688 break;
689
690 case EIO_OPEN:
691 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
692 break;
693
694 case EIO_STATVFS:
695 case EIO_FSTATVFS:
696 {
697 SV *rv = &PL_sv_undef;
698
699#ifndef _WIN32
700 if (req->result >= 0)
701 {
702 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
703 HV *hv = newHV ();
704 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
705 * chooses to make it a struct.
706 */
707 unsigned long fsid = 0;
708 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
709
710 rv = sv_2mortal (newRV_noinc ((SV *)hv));
711
712 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
713 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
714 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
715 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
716 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
717 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
718 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
719 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
720 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
721 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
722 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
723 }
724#endif
725
726 PUSHs (rv);
727 }
728
729 break;
730
731 case EIO_GROUP:
732 req->int1 = 2; /* mark group as finished */
733
734 if (req->sv1)
735 {
736 int i;
737 AV *av = (AV *)req->sv1;
738
739 EXTEND (SP, AvFILL (av) + 1);
740 for (i = 0; i <= AvFILL (av); ++i)
741 PUSHs (*av_fetch (av, i, 0));
742 }
743 break;
744
745 case EIO_NOP:
746 case EIO_BUSY:
747 break;
748
749 case EIO_READLINK:
750 case EIO_REALPATH:
751 if (req->result > 0)
752 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
753 break;
754
755 case EIO_STAT:
756 case EIO_LSTAT:
757 case EIO_FSTAT:
758 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
759
760 if (!(PL_laststatval = req->result))
761 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
762 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
763
764 PUSHs (sv_result);
765 break;
766
767 case EIO_SEEK:
768 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
769 break;
770
771 case EIO_READ:
772 {
773 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
774 *SvEND (req->sv2) = 0;
775 SvPOK_only (req->sv2);
776 SvSETMAGIC (req->sv2);
777 PUSHs (sv_result);
778 }
779 break;
780
781 case EIO_SLURP:
782 {
783 if (req->result >= 0)
784 {
785 /* if length was originally not known, we steal the malloc'ed memory */
786 if (req->flags & EIO_FLAG_PTR2_FREE)
787 {
788 req->flags &= ~EIO_FLAG_PTR2_FREE;
789 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
790 }
791 else
792 {
793 SvCUR_set (req->sv2, req->result);
794 *SvEND (req->sv2) = 0;
795 SvPOK_only (req->sv2);
796 }
797
798 SvSETMAGIC (req->sv2);
799 }
800
801 PUSHs (sv_result);
802 }
803 break;
804
805 case EIO_CUSTOM:
806 if (req->feed == fiemap)
807 {
808#if HAVE_FIEMAP
809 if (!req->result)
810 {
811 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
812
813 if (fiemap->fm_extent_count)
814 {
815 AV *av = newAV ();
816 int i;
817
818 while (fiemap->fm_mapped_extents)
819 {
820 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
821 AV *ext_av = newAV ();
822
823 av_store (ext_av, 3, newSVuv (extent->fe_flags));
824 av_store (ext_av, 2, newSVval64 (extent->fe_length));
825 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
826 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
827
828 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
829 }
830
831 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
832 }
833 else
834 {
835 SvIV_set (sv_result, fiemap->fm_mapped_extents);
836 PUSHs (sv_result);
837 }
838 }
839#endif
840 }
841 else
842 PUSHs (sv_result);
843 break;
844
845#if 0
846 case EIO_CLOSE:
847 PerlIOUnix_refcnt_dec (req->int1);
848 break;
849#endif
850
851 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
852 if (req->result > 0)
853 SvIV_set (sv_result, 0);
854 /* FALLTHROUGH */
855
856 default:
857 PUSHs (sv_result);
858 break;
859 }
860
861 errno = req->errorno;
862
863 PUTBACK;
864 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
865 SPAGAIN;
866
867 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
868 SvREFCNT_dec (sv_result);
869 else
870 sv_result_cache = sv_result;
871
872 FREETMPS;
873 LEAVE;
874
875 PUTBACK;
503 } 876 }
504 while (type != REQ_QUIT);
505 877
878 return !!SvTRUE (ERRSV);
879}
880
881static void
882req_destroy (aio_req req)
883{
884 if (req->self)
885 {
886 sv_unmagic (req->self, PERL_MAGIC_ext);
887 SvREFCNT_dec (req->self);
888 }
889
890 SvREFCNT_dec (req->sv1);
891 SvREFCNT_dec (req->sv2);
892 SvREFCNT_dec (req->sv3);
893 SvREFCNT_dec (req->sv4);
894 SvREFCNT_dec (req->callback);
895
896 free (req);
897}
898
899static void
900req_cancel_subs (aio_req grp)
901{
902 if (grp->type != EIO_GROUP)
903 return;
904
905 SvREFCNT_dec (grp->sv2);
906 grp->sv2 = 0;
907
908 eio_grp_cancel (grp);
909}
910
911ecb_cold
912static void
913create_respipe (void)
914{
915 if (s_epipe_renew (&respipe))
916 croak ("IO::AIO: unable to initialize result pipe");
917}
918
919static void
920poll_wait (void)
921{
922 while (eio_nreqs ())
923 {
924 int size;
925
926 X_LOCK (EIO_POOL->reslock);
927 size = EIO_POOL->res_queue.size;
928 X_UNLOCK (EIO_POOL->reslock);
929
930 if (size)
931 return;
932
933 etp_maybe_start_thread (EIO_POOL);
934
935 s_epipe_wait (&respipe);
936 }
937}
938
939static int
940poll_cb (void)
941{
942 for (;;)
943 {
944 int res = eio_poll ();
945
946 if (res > 0)
947 croak (0);
948
949 if (!max_outstanding || max_outstanding > eio_nreqs ())
950 return res;
951
952 poll_wait ();
953 }
954}
955
956ecb_cold
957static void
958reinit (void)
959{
960 create_respipe ();
961
962 if (eio_init (want_poll, done_poll) < 0)
963 croak ("IO::AIO: unable to initialise eio library");
964}
965
966/*****************************************************************************/
967
968static SV *
969get_cb (SV *cb_sv)
970{
971 SvGETMAGIC (cb_sv);
972 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
973}
974
975ecb_noinline
976static aio_req ecb_noinline
977dreq (SV *callback)
978{
979 SV *cb_cv;
980 aio_req req;
981 int req_pri = next_pri;
982 next_pri = EIO_PRI_DEFAULT;
983
984 cb_cv = get_cb (callback);
985
986 req = calloc (sizeof (*req), 1);
987 if (!req)
988 croak ("out of memory during eio_req allocation");
989
990 req->callback = SvREFCNT_inc (cb_cv);
991 req->pri = req_pri;
992
506 return 0; 993 return req;
507} 994}
508 995
509#define dREQ \ 996#define dREQ \
510 aio_req req; \ 997 aio_req req = dreq (callback); \
998
999#define REQ_SEND \
1000 PUTBACK; \
1001 req_submit (req); \
1002 SPAGAIN; \
511 \ 1003 \
512 if (SvOK (callback) && !SvROK (callback)) \ 1004 if (GIMME_V != G_VOID) \
513 croak ("clalback must be undef or of reference type"); \ 1005 XPUSHs (req_sv (req, aio_req_stash));
514 \ 1006
515 Newz (0, req, 1, aio_cb); \ 1007/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
516 if (!req) \ 1008ecb_inline
517 croak ("out of memory during aio_req allocation"); \ 1009void
518 \ 1010req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
519 req->callback = newSVsv (callback); 1011{
520 1012 if (expect_false (SvROK (path)))
1013 {
1014 SV *rv = SvRV (path);
1015 SV *wdob;
1016
1017 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
1018 {
1019 path = AvARRAY (rv)[1];
1020 wdob = AvARRAY (rv)[0];
1021
1022 if (SvOK (wdob))
1023 {
1024 *wd = SvAIO_WD (wdob);
1025 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
1026 }
1027 else
1028 *wd = EIO_INVALID_WD;
1029 }
1030 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
1031 {
1032 *wd = (aio_wd)(long)SvIVX (rv);
1033 *wdsv = SvREFCNT_inc_NN (rv);
1034 *ptr = ".";
1035 return; /* path set to "." */
1036 }
1037 else
1038 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
1039 }
1040
1041 *pathsv = newSVsv (path);
1042 *ptr = SvPVbyte_nolen (*pathsv);
1043}
1044
1045ecb_noinline
1046static void
1047req_set_path1 (aio_req req, SV *path)
1048{
1049 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
1050}
1051
1052ecb_noinline
1053static void
1054req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1055{
1056 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1057
1058 switch (SvTYPE (rv))
1059 {
1060 case SVt_PVIO:
1061 case SVt_PVLV:
1062 case SVt_PVGV:
1063 req->type = type_fh;
1064 req->sv1 = newSVsv (fh_or_path);
1065 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1066 break;
1067
1068 default:
1069 req->type = type_path;
1070 req_set_path1 (req, fh_or_path);
1071 break;
1072 }
1073}
1074
1075/*****************************************************************************/
1076
1077static void
1078ts_set (struct timespec *ts, NV value)
1079{
1080 ts->tv_sec = value;
1081 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
1082}
1083
1084static NV
1085ts_get (const struct timespec *ts)
1086{
1087 return ts->tv_sec + ts->tv_nsec * 1e-9;
1088}
1089
1090/*****************************************************************************/
1091
1092XS(boot_IO__AIO) ecb_cold;
1093
521MODULE = IO::AIO PACKAGE = IO::AIO 1094MODULE = IO::AIO PACKAGE = IO::AIO
522 1095
523PROTOTYPES: ENABLE 1096PROTOTYPES: ENABLE
524 1097
525BOOT: 1098BOOT:
526{ 1099{
527 create_pipe (); 1100 static const struct {
528 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 1101 const char *name;
529} 1102 IV iv;
1103 } *civ, const_iv[] = {
1104# define const_niv(name, value) { # name, (IV) value },
1105# define const_iv(name) { # name, (IV) name },
1106# define const_eio(name) { # name, (IV) EIO_ ## name },
530 1107
1108 /* you have to re-run ./gendef0 after adding/removing any constants here */
1109 /* the first block can be undef if missing */
1110 const_iv (ENOSYS)
1111 const_iv (EXDEV)
1112 const_iv (EBADR)
1113
1114 /* for lseek */
1115 const_iv (SEEK_DATA)
1116 const_iv (SEEK_HOLE)
1117
1118 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1119 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1120 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1121 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1122 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1123 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1124
1125 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1126 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1127 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1128 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1129 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1130
1131 /* the second block will be 0 when missing */
1132 const_iv (O_ACCMODE)
1133
1134 const_iv (O_RDONLY)
1135 const_iv (O_WRONLY)
1136 const_iv (O_RDWR)
1137 const_iv (O_CREAT)
1138 const_iv (O_TRUNC)
1139 const_iv (O_EXCL)
1140 const_iv (O_APPEND)
1141
1142 const_iv (O_ASYNC)
1143 const_iv (O_DIRECT)
1144 const_iv (O_NOATIME)
1145
1146 const_iv (O_CLOEXEC)
1147 const_iv (O_NOCTTY)
1148 const_iv (O_NOFOLLOW)
1149 const_iv (O_NONBLOCK)
1150 const_iv (O_EXEC)
1151 const_iv (O_SEARCH)
1152 const_iv (O_DIRECTORY)
1153 const_iv (O_DSYNC)
1154 const_iv (O_RSYNC)
1155 const_iv (O_SYNC)
1156 const_iv (O_PATH)
1157 const_iv (O_TMPFILE)
1158 const_iv (O_TTY_INIT)
1159
1160 const_iv (S_IFIFO)
1161 const_iv (S_IFCHR)
1162 const_iv (S_IFBLK)
1163 const_iv (S_IFLNK)
1164 const_iv (S_IFREG)
1165 const_iv (S_IFDIR)
1166 const_iv (S_IFWHT)
1167 const_iv (S_IFSOCK)
1168 const_iv (S_IFMT)
1169
1170 const_iv (ST_RDONLY)
1171 const_iv (ST_NOSUID)
1172 const_iv (ST_NODEV)
1173 const_iv (ST_NOEXEC)
1174 const_iv (ST_SYNCHRONOUS)
1175 const_iv (ST_MANDLOCK)
1176 const_iv (ST_WRITE)
1177 const_iv (ST_APPEND)
1178 const_iv (ST_IMMUTABLE)
1179 const_iv (ST_NOATIME)
1180 const_iv (ST_NODIRATIME)
1181 const_iv (ST_RELATIME)
1182
1183 const_iv (PROT_NONE)
1184 const_iv (PROT_EXEC)
1185 const_iv (PROT_READ)
1186 const_iv (PROT_WRITE)
1187
1188 const_iv (MAP_PRIVATE)
1189 const_iv (MAP_SHARED)
1190 const_iv (MAP_FIXED)
1191 const_iv (MAP_ANONYMOUS)
1192
1193 /* linuxish */
1194 const_iv (MAP_LOCKED)
1195 const_iv (MAP_NORESERVE)
1196 const_iv (MAP_POPULATE)
1197 const_iv (MAP_NONBLOCK)
1198 const_iv (MAP_GROWSDOWN)
1199 const_iv (MAP_32BIT)
1200 const_iv (MAP_HUGETLB)
1201 const_iv (MAP_STACK)
1202
1203 const_iv (MREMAP_MAYMOVE)
1204 const_iv (MREMAP_FIXED)
1205
1206 const_iv (MSG_CMSG_CLOEXEC)
1207 const_iv (SOCK_CLOEXEC)
1208
1209 const_iv (F_DUPFD_CLOEXEC)
1210
1211 const_iv (F_ADD_SEALS)
1212 const_iv (F_GET_SEALS)
1213 const_iv (F_SEAL_SEAL)
1214 const_iv (F_SEAL_SHRINK)
1215 const_iv (F_SEAL_GROW)
1216 const_iv (F_SEAL_WRITE)
1217
1218 const_iv (F_OFD_GETLK)
1219 const_iv (F_OFD_SETLK)
1220 const_iv (F_OFD_GETLKW)
1221
1222 const_iv (FIFREEZE)
1223 const_iv (FITHAW)
1224 const_iv (FITRIM)
1225 const_iv (FICLONE)
1226 const_iv (FICLONERANGE)
1227 const_iv (FIDEDUPERANGE)
1228
1229 const_iv (FS_IOC_GETFLAGS)
1230 const_iv (FS_IOC_SETFLAGS)
1231 const_iv (FS_IOC_GETVERSION)
1232 const_iv (FS_IOC_SETVERSION)
1233 const_iv (FS_IOC_FIEMAP)
1234 const_iv (FS_IOC_FSGETXATTR)
1235 const_iv (FS_IOC_FSSETXATTR)
1236 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1237 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1238 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1239
1240 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1241
1242 const_iv (FS_SECRM_FL)
1243 const_iv (FS_UNRM_FL)
1244 const_iv (FS_COMPR_FL)
1245 const_iv (FS_SYNC_FL)
1246 const_iv (FS_IMMUTABLE_FL)
1247 const_iv (FS_APPEND_FL)
1248 const_iv (FS_NODUMP_FL)
1249 const_iv (FS_NOATIME_FL)
1250 const_iv (FS_DIRTY_FL)
1251 const_iv (FS_COMPRBLK_FL)
1252 const_iv (FS_NOCOMP_FL)
1253 const_iv (FS_ENCRYPT_FL)
1254 const_iv (FS_BTREE_FL)
1255 const_iv (FS_INDEX_FL)
1256 const_iv (FS_JOURNAL_DATA_FL)
1257 const_iv (FS_NOTAIL_FL)
1258 const_iv (FS_DIRSYNC_FL)
1259 const_iv (FS_TOPDIR_FL)
1260 const_iv (FS_FL_USER_MODIFIABLE)
1261
1262 const_iv (FS_XFLAG_REALTIME)
1263 const_iv (FS_XFLAG_PREALLOC)
1264 const_iv (FS_XFLAG_IMMUTABLE)
1265 const_iv (FS_XFLAG_APPEND)
1266 const_iv (FS_XFLAG_SYNC)
1267 const_iv (FS_XFLAG_NOATIME)
1268 const_iv (FS_XFLAG_NODUMP)
1269 const_iv (FS_XFLAG_RTINHERIT)
1270 const_iv (FS_XFLAG_PROJINHERIT)
1271 const_iv (FS_XFLAG_NOSYMLINKS)
1272 const_iv (FS_XFLAG_EXTSIZE)
1273 const_iv (FS_XFLAG_EXTSZINHERIT)
1274 const_iv (FS_XFLAG_NODEFRAG)
1275 const_iv (FS_XFLAG_FILESTREAM)
1276 const_iv (FS_XFLAG_DAX)
1277 const_iv (FS_XFLAG_HASATTR)
1278
1279 const_iv (FIEMAP_FLAG_SYNC)
1280 const_iv (FIEMAP_FLAG_XATTR)
1281 const_iv (FIEMAP_FLAGS_COMPAT)
1282 const_iv (FIEMAP_EXTENT_LAST)
1283 const_iv (FIEMAP_EXTENT_UNKNOWN)
1284 const_iv (FIEMAP_EXTENT_DELALLOC)
1285 const_iv (FIEMAP_EXTENT_ENCODED)
1286 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1287 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1288 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1289 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1290 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1291 const_iv (FIEMAP_EXTENT_MERGED)
1292 const_iv (FIEMAP_EXTENT_SHARED)
1293
1294 const_iv (SPLICE_F_MOVE)
1295 const_iv (SPLICE_F_NONBLOCK)
1296 const_iv (SPLICE_F_MORE)
1297 const_iv (SPLICE_F_GIFT)
1298
1299 const_iv (EFD_CLOEXEC)
1300 const_iv (EFD_NONBLOCK)
1301 const_iv (EFD_SEMAPHORE)
1302
1303 const_iv (MFD_CLOEXEC)
1304 const_iv (MFD_ALLOW_SEALING)
1305 const_iv (MFD_HUGETLB)
1306
1307 const_iv (CLOCK_REALTIME)
1308 const_iv (CLOCK_MONOTONIC)
1309 const_iv (CLOCK_BOOTTIME)
1310 const_iv (CLOCK_REALTIME_ALARM)
1311 const_iv (CLOCK_BOOTTIME_ALARM)
1312
1313 const_iv (TFD_NONBLOCK)
1314 const_iv (TFD_CLOEXEC)
1315
1316 const_iv (TFD_TIMER_ABSTIME)
1317 const_iv (TFD_TIMER_CANCEL_ON_SET)
1318
1319 const_iv (STATX_TYPE)
1320 const_iv (STATX_MODE)
1321 const_iv (STATX_NLINK)
1322 const_iv (STATX_UID)
1323 const_iv (STATX_GID)
1324 const_iv (STATX_ATIME)
1325 const_iv (STATX_MTIME)
1326 const_iv (STATX_CTIME)
1327 const_iv (STATX_INO)
1328 const_iv (STATX_SIZE)
1329 const_iv (STATX_BLOCKS)
1330 const_iv (STATX_BASIC_STATS)
1331 const_iv (STATX_ALL)
1332 const_iv (STATX_BTIME)
1333 const_iv (STATX_ATTR_COMPRESSED)
1334 const_iv (STATX_ATTR_IMMUTABLE)
1335 const_iv (STATX_ATTR_APPEND)
1336 const_iv (STATX_ATTR_NODUMP)
1337 const_iv (STATX_ATTR_ENCRYPTED)
1338 const_iv (STATX_ATTR_AUTOMOUNT)
1339
1340 const_iv (AT_FDCWD)
1341 const_iv (AT_SYMLINK_NOFOLLOW)
1342 const_iv (AT_EACCESS)
1343 const_iv (AT_REMOVEDIR)
1344 const_iv (AT_SYMLINK_FOLLOW)
1345 const_iv (AT_NO_AUTOMOUNT)
1346 const_iv (AT_EMPTY_PATH)
1347 const_iv (AT_STATX_SYNC_TYPE)
1348 const_iv (AT_STATX_AS_STAT)
1349 const_iv (AT_STATX_FORCE_SYNC)
1350 const_iv (AT_STATX_DONT_SYNC)
1351 const_iv (AT_RECURSIVE)
1352
1353 const_iv (OPEN_TREE_CLONE)
1354
1355 const_iv (MOVE_MOUNT_F_SYMLINKS)
1356 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1357 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1358 const_iv (MOVE_MOUNT_T_SYMLINKS)
1359 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1360 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1361
1362 /* these are libeio constants, and are independent of gendef0 */
1363 const_eio (SEEK_SET)
1364 const_eio (SEEK_CUR)
1365 const_eio (SEEK_END)
1366
1367 const_eio (MCL_FUTURE)
1368 const_eio (MCL_CURRENT)
1369 const_eio (MCL_ONFAULT)
1370
1371 const_eio (MS_ASYNC)
1372 const_eio (MS_INVALIDATE)
1373 const_eio (MS_SYNC)
1374
1375 const_eio (MT_MODIFY)
1376
1377 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1378 const_eio (SYNC_FILE_RANGE_WRITE)
1379 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1380
1381 const_eio (FALLOC_FL_KEEP_SIZE)
1382 const_eio (FALLOC_FL_PUNCH_HOLE)
1383 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1384 const_eio (FALLOC_FL_ZERO_RANGE)
1385 const_eio (FALLOC_FL_INSERT_RANGE)
1386 const_eio (FALLOC_FL_UNSHARE_RANGE)
1387
1388 const_eio (RENAME_NOREPLACE)
1389 const_eio (RENAME_EXCHANGE)
1390 const_eio (RENAME_WHITEOUT)
1391
1392 const_eio (READDIR_DENTS)
1393 const_eio (READDIR_DIRS_FIRST)
1394 const_eio (READDIR_STAT_ORDER)
1395 const_eio (READDIR_FOUND_UNKNOWN)
1396
1397 const_eio (DT_UNKNOWN)
1398 const_eio (DT_FIFO)
1399 const_eio (DT_CHR)
1400 const_eio (DT_DIR)
1401 const_eio (DT_BLK)
1402 const_eio (DT_REG)
1403 const_eio (DT_LNK)
1404 const_eio (DT_SOCK)
1405 const_eio (DT_WHT)
1406 };
1407
1408 aio_stash = gv_stashpv ("IO::AIO" , 1);
1409 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1410 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1411 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1412
1413 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1414 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1415
1416 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1417
1418 /* allocate dummy pipe fd for aio_close */
1419 {
1420 int pipefd [2];
1421
1422 if (
1423#ifdef _WIN32
1424 _pipe (pipefd, 1, _O_BINARY) < 0
1425#else
1426 pipe (pipefd) < 0
1427 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1428#endif
1429 || close (pipefd [1]) < 0
1430 )
1431 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1432
1433 close_fd = pipefd [0];
1434 }
1435
1436 reinit ();
1437}
1438
531void 1439void
532min_parallel(nthreads) 1440reinit ()
533 int nthreads 1441 PROTOTYPE:
1442
1443void
1444max_poll_reqs (unsigned int nreqs)
534 PROTOTYPE: $ 1445 PROTOTYPE: $
1446 CODE:
1447 eio_set_max_poll_reqs (nreqs);
535 1448
536void 1449void
537max_parallel(nthreads) 1450max_poll_time (double nseconds)
538 int nthreads
539 PROTOTYPE: $ 1451 PROTOTYPE: $
540
541int
542max_outstanding(nreqs)
543 int nreqs
544 PROTOTYPE: $
545 CODE: 1452 CODE:
546 RETVAL = max_outstanding; 1453 eio_set_max_poll_time (nseconds);
1454
1455void
1456min_parallel (unsigned int nthreads)
1457 PROTOTYPE: $
1458 CODE:
1459 eio_set_min_parallel (nthreads);
1460
1461void
1462max_parallel (unsigned int nthreads)
1463 PROTOTYPE: $
1464 CODE:
1465 eio_set_max_parallel (nthreads);
1466
1467void
1468max_idle (unsigned int nthreads)
1469 PROTOTYPE: $
1470 CODE:
1471 eio_set_max_idle (nthreads);
1472
1473void
1474idle_timeout (unsigned int seconds)
1475 PROTOTYPE: $
1476 CODE:
1477 eio_set_idle_timeout (seconds);
1478
1479void
1480max_outstanding (unsigned int maxreqs)
1481 PROTOTYPE: $
1482 CODE:
547 max_outstanding = nreqs; 1483 max_outstanding = maxreqs;
548 1484
549void 1485void
550aio_open(pathname,flags,mode,callback=&PL_sv_undef) 1486aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
551 SV * pathname
552 int flags
553 int mode
554 SV * callback
555 PROTOTYPE: $$$;$
556 CODE: 1487 PPCODE:
557{ 1488{
558 dREQ; 1489 dREQ;
559 1490
1491 req->type = EIO_WD_OPEN;
1492 req_set_path1 (req, pathname);
1493
1494 REQ_SEND;
1495}
1496
1497void
1498aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1499 PPCODE:
1500{
1501 dREQ;
1502
560 req->type = REQ_OPEN; 1503 req->type = EIO_OPEN;
561 req->data = newSVsv (pathname); 1504 req_set_path1 (req, pathname);
562 req->dataptr = SvPVbyte_nolen (req->data);
563 req->fd = flags; 1505 req->int1 = flags;
564 req->mode = mode; 1506 req->int2 = mode;
565 1507
566 send_req (req); 1508 REQ_SEND;
567} 1509}
568 1510
569void 1511void
570aio_close(fh,callback=&PL_sv_undef) 1512aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
571 SV * fh
572 SV * callback
573 PROTOTYPE: $;$
574 ALIAS: 1513 ALIAS:
575 aio_close = REQ_CLOSE
576 aio_fsync = REQ_FSYNC 1514 aio_fsync = EIO_FSYNC
577 aio_fdatasync = REQ_FDATASYNC 1515 aio_fdatasync = EIO_FDATASYNC
1516 aio_syncfs = EIO_SYNCFS
578 CODE: 1517 PPCODE:
579{ 1518{
1519 int fd = s_fileno_croak (fh, 0);
580 dREQ; 1520 dREQ;
581 1521
582 req->type = ix; 1522 req->type = ix;
583 req->fh = newSVsv (fh); 1523 req->sv1 = newSVsv (fh);
584 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1524 req->int1 = fd;
585 1525
586 send_req (req); 1526 REQ_SEND;
587} 1527}
588 1528
589void 1529void
1530aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1531 PPCODE:
1532{
1533 int fd = s_fileno_croak (fh, 0);
1534 dREQ;
1535
1536 req->type = EIO_SYNC_FILE_RANGE;
1537 req->sv1 = newSVsv (fh);
1538 req->int1 = fd;
1539 req->offs = offset;
1540 req->size = nbytes;
1541 req->int2 = flags;
1542
1543 REQ_SEND;
1544}
1545
1546void
1547aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1548 PPCODE:
1549{
1550 int fd = s_fileno_croak (fh, 0);
1551 dREQ;
1552
1553 req->type = EIO_FALLOCATE;
1554 req->sv1 = newSVsv (fh);
1555 req->int1 = fd;
1556 req->int2 = mode;
1557 req->offs = offset;
1558 req->size = len;
1559
1560 REQ_SEND;
1561}
1562
1563void
1564aio_close (SV *fh, SV *callback = &PL_sv_undef)
1565 PPCODE:
1566{
1567 int fd = s_fileno_croak (fh, 0);
1568 dREQ;
1569#if 0
1570 /* partially duplicate logic in s_fileno */
1571 SvGETMAGIC (fh);
1572
1573 if (SvROK (fh))
1574 {
1575 fh = SvRV (fh);
1576 SvGETMAGIC (fh);
1577 }
1578
1579 if (SvTYPE (fh) == SVt_PVGV)
1580 {
1581 /* perl filehandle */
1582 PerlIOUnix_refcnt_inc (fd);
1583 do_close ((GV *)fh, 1);
1584
1585 req->type = EIO_CLOSE;
1586 req->int1 = fd;
1587 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1588 }
1589 else
1590#endif
1591 {
1592 /* fd number */
1593 req->type = EIO_DUP2;
1594 req->int1 = close_fd;
1595 req->sv2 = newSVsv (fh);
1596 req->int2 = fd;
1597 }
1598
1599 REQ_SEND;
1600}
1601
1602void
1603aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1604 PPCODE:
1605{
1606 int fd = s_fileno_croak (fh, 0);
1607 dREQ;
1608
1609 req->type = EIO_SEEK;
1610 req->sv1 = newSVsv (fh);
1611 req->int1 = fd;
1612 req->offs = SvVAL64 (offset);
1613 req->int2 = whence;
1614
1615 REQ_SEND;
1616}
1617
1618void
590aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1619aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
591 SV * fh
592 UV offset
593 IV length
594 SV * data
595 IV dataoffset
596 SV * callback
597 ALIAS: 1620 ALIAS:
598 aio_read = REQ_READ 1621 aio_read = EIO_READ
599 aio_write = REQ_WRITE 1622 aio_write = EIO_WRITE
600 PROTOTYPE: $$$$$;$
601 CODE: 1623 PPCODE:
602{ 1624{
603 aio_req req;
604 STRLEN svlen; 1625 STRLEN svlen;
1626 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
605 char *svptr = SvPVbyte (data, svlen); 1627 char *svptr = SvPVbyte (data, svlen);
606 1628 UV len = SvUV (length);
607 SvUPGRADE (data, SVt_PV);
608 SvPOK_on (data);
609 1629
610 if (dataoffset < 0) 1630 if (dataoffset < 0)
611 dataoffset += svlen; 1631 dataoffset += svlen;
612 1632
613 if (dataoffset < 0 || dataoffset > svlen) 1633 if (dataoffset < 0 || dataoffset > svlen)
614 croak ("data offset outside of string"); 1634 croak ("dataoffset outside of data scalar");
615 1635
616 if (ix == REQ_WRITE) 1636 if (ix == EIO_WRITE)
617 { 1637 {
618 /* write: check length and adjust. */ 1638 /* write: check length and adjust. */
619 if (length < 0 || length + dataoffset > svlen) 1639 if (!SvOK (length) || len + dataoffset > svlen)
620 length = svlen - dataoffset; 1640 len = svlen - dataoffset;
621 } 1641 }
622 else 1642 else
623 { 1643 {
624 /* read: grow scalar as necessary */ 1644 /* read: check type and grow scalar as necessary */
1645 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
625 svptr = SvGROW (data, length + dataoffset); 1646 svptr = sv_grow (data, len + dataoffset + 1);
1647 else if (SvCUR (data) < len + dataoffset)
1648 croak ("length + dataoffset outside of scalar, and cannot grow");
626 } 1649 }
627
628 if (length < 0)
629 croak ("length must not be negative");
630 1650
631 { 1651 {
632 dREQ; 1652 dREQ;
633 1653
634 req->type = ix; 1654 req->type = ix;
635 req->fh = newSVsv (fh); 1655 req->sv1 = newSVsv (fh);
636 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1656 req->int1 = fd;
637 : IoOFP (sv_2io (fh))); 1657 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
638 req->offset = offset; 1658 req->size = len;
639 req->length = length;
640 req->data = SvREFCNT_inc (data); 1659 req->sv2 = SvREFCNT_inc (data);
641 req->dataptr = (char *)svptr + dataoffset; 1660 req->ptr2 = (char *)svptr + dataoffset;
1661 req->stroffset = dataoffset;
642 1662
643 if (!SvREADONLY (data)) 1663 if (!SvREADONLY (data))
644 { 1664 {
645 SvREADONLY_on (data); 1665 SvREADONLY_on (data);
646 req->data2ptr = (void *)data; 1666 req->flags |= FLAG_SV2_RO_OFF;
647 } 1667 }
648 1668
649 send_req (req); 1669 REQ_SEND;
650 } 1670 }
651} 1671}
652 1672
653void 1673void
654aio_readahead(fh,offset,length,callback=&PL_sv_undef) 1674aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
655 SV * fh
656 UV offset
657 IV length
658 SV * callback
659 PROTOTYPE: $$$;$
660 CODE:
661{
662 dREQ;
663
664 req->type = REQ_READAHEAD;
665 req->fh = newSVsv (fh);
666 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
667 req->offset = offset;
668 req->length = length;
669
670 send_req (req);
671}
672
673void
674aio_stat(fh_or_path,callback=&PL_sv_undef)
675 SV * fh_or_path
676 SV * callback
677 ALIAS: 1675 ALIAS:
678 aio_stat = REQ_STAT 1676 aio_ioctl = EIO_IOCTL
679 aio_lstat = REQ_LSTAT 1677 aio_fcntl = EIO_FCNTL
680 CODE: 1678 PPCODE:
681{ 1679{
682 dREQ; 1680 int fd = s_fileno_croak (fh, 0);
1681 char *svptr;
683 1682
684 New (0, req->statdata, 1, Stat_t); 1683 if (SvPOK (arg) || !SvNIOK (arg))
685 if (!req->statdata)
686 { 1684 {
687 free_req (req); 1685 STRLEN svlen;
688 croak ("out of memory during aio_req->statdata allocation"); 1686 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
689 } 1687#ifdef IOCPARM_LEN
1688 STRLEN need = IOCPARM_LEN (request);
1689#else
1690 STRLEN need = 256;
1691#endif
690 1692
691 if (SvPOK (fh_or_path)) 1693 if (svlen < need)
692 { 1694 svptr = SvGROW (arg, need);
693 req->type = ix;
694 req->data = newSVsv (fh_or_path);
695 req->dataptr = SvPVbyte_nolen (req->data);
696 } 1695 }
697 else 1696 else
1697 svptr = (char *)SvIV (arg);
1698
698 { 1699 {
1700 dREQ;
1701
699 req->type = REQ_FSTAT; 1702 req->type = ix;
700 req->fh = newSVsv (fh_or_path); 1703 req->sv1 = newSVsv (fh);
701 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1704 req->int1 = fd;
1705 req->int2 = (long)request;
1706 req->sv2 = SvREFCNT_inc (arg);
1707 req->ptr2 = svptr;
1708
1709 REQ_SEND;
702 } 1710 }
703
704 send_req (req);
705} 1711}
706 1712
707void 1713void
708aio_unlink(pathname,callback=&PL_sv_undef) 1714aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
709 SV * pathname
710 SV * callback
711 ALIAS: 1715 ALIAS:
712 aio_unlink = REQ_UNLINK 1716 aio_readlink = EIO_READLINK
713 aio_rmdir = REQ_RMDIR 1717 aio_realpath = EIO_REALPATH
1718 PPCODE:
1719{
1720 dREQ;
1721
1722 req->type = ix;
1723 req_set_path1 (req, pathname);
1724
1725 REQ_SEND;
1726}
1727
1728void
1729aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1730 PPCODE:
1731{
1732 int ifd = s_fileno_croak (in_fh , 0);
1733 int ofd = s_fileno_croak (out_fh, 1);
1734 dREQ;
1735
1736 req->type = EIO_SENDFILE;
1737 req->sv1 = newSVsv (out_fh);
1738 req->int1 = ofd;
1739 req->sv2 = newSVsv (in_fh);
1740 req->int2 = ifd;
1741 req->offs = in_offset;
1742 req->size = length;
1743
1744 REQ_SEND;
1745}
1746
1747void
1748aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1749 PPCODE:
1750{
1751 int fd = s_fileno_croak (fh, 0);
1752 dREQ;
1753
1754 req->type = EIO_READAHEAD;
1755 req->sv1 = newSVsv (fh);
1756 req->int1 = fd;
1757 req->offs = offset;
1758 req->size = length;
1759
1760 REQ_SEND;
1761}
1762
1763void
1764aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1765 ALIAS:
1766 aio_stat = EIO_STAT
1767 aio_lstat = EIO_LSTAT
1768 aio_statvfs = EIO_STATVFS
1769 PPCODE:
1770{
1771 dREQ;
1772
1773 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1774
1775 REQ_SEND;
1776}
1777
1778void
1779st_xtime ()
1780 ALIAS:
1781 st_atime = 0x01
1782 st_mtime = 0x02
1783 st_ctime = 0x04
1784 st_btime = 0x08
1785 st_xtime = 0x0f
1786 PPCODE:
1787 EXTEND (SP, 4);
1788 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1789 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1790 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1791 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1792
1793void
1794st_xtimensec ()
1795 ALIAS:
1796 st_atimensec = 0x01
1797 st_mtimensec = 0x02
1798 st_ctimensec = 0x04
1799 st_btimensec = 0x08
1800 st_xtimensec = 0x0f
1801 st_btimesec = 0x10
1802 st_gen = 0x20
1803 PPCODE:
1804 EXTEND (SP, 4);
1805 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1806 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1807 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1808 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1809 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1810 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1811
1812UV
1813major (UV dev)
1814 ALIAS:
1815 minor = 1
714 CODE: 1816 CODE:
1817 RETVAL = ix ? minor (dev) : major (dev);
1818 OUTPUT:
1819 RETVAL
1820
1821UV
1822makedev (UV maj, UV min)
1823 CODE:
1824 RETVAL = makedev (maj, min);
1825 OUTPUT:
1826 RETVAL
1827
1828void
1829aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1830 PPCODE:
1831{
1832 dREQ;
1833
1834 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1835 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1836 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1837
1838 REQ_SEND;
1839}
1840
1841void
1842aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1843 PPCODE:
1844{
1845 dREQ;
1846
1847 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1848 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1849
1850 REQ_SEND;
1851}
1852
1853void
1854aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1855 PPCODE:
1856{
1857 dREQ;
1858
1859 req->int2 = mode;
1860 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1861
1862 REQ_SEND;
1863}
1864
1865void
1866aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1867 PPCODE:
1868{
1869 dREQ;
1870
1871 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1872 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1873 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1874
1875 REQ_SEND;
1876}
1877
1878void
1879aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1880 PPCODE:
1881{
1882 dREQ;
1883
1884 req->type = EIO_READDIR;
1885 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1886
1887 if (flags & EIO_READDIR_DENTS)
1888 req->int1 |= EIO_READDIR_CUSTOM2;
1889
1890 req_set_path1 (req, pathname);
1891
1892 REQ_SEND;
1893}
1894
1895void
1896aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1897 PPCODE:
1898{
1899 dREQ;
1900
1901 req->type = EIO_MKDIR;
1902 req->int2 = mode;
1903 req_set_path1 (req, pathname);
1904
1905 REQ_SEND;
1906}
1907
1908void
1909aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1910 ALIAS:
1911 aio_unlink = EIO_UNLINK
1912 aio_rmdir = EIO_RMDIR
1913 aio_readdir = EIO_READDIR
1914 PPCODE:
715{ 1915{
716 dREQ; 1916 dREQ;
717 1917
718 req->type = ix; 1918 req->type = ix;
719 req->data = newSVsv (pathname); 1919 req_set_path1 (req, pathname);
720 req->dataptr = SvPVbyte_nolen (req->data);
721
722 send_req (req);
723}
724 1920
1921 REQ_SEND;
1922}
1923
725void 1924void
726aio_symlink(oldpath,newpath,callback=&PL_sv_undef) 1925aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
727 SV * oldpath 1926 ALIAS:
728 SV * newpath 1927 aio_link = EIO_LINK
729 SV * callback 1928 aio_symlink = EIO_SYMLINK
1929 aio_rename = EIO_RENAME
730 CODE: 1930 PPCODE:
731{ 1931{
1932 eio_wd wd2 = 0;
732 dREQ; 1933 dREQ;
733 1934
734 req->type = REQ_SYMLINK; 1935 req->type = ix;
735 req->fh = newSVsv (oldpath); 1936 req_set_path1 (req, oldpath);
736 req->data2ptr = SvPVbyte_nolen (req->fh); 1937 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
737 req->data = newSVsv (newpath); 1938 req->int3 = (long)wd2;
738 req->dataptr = SvPVbyte_nolen (req->data);
739 1939
740 send_req (req); 1940 REQ_SEND;
741} 1941}
742 1942
743void 1943void
744flush() 1944aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
745 PROTOTYPE: 1945 PPCODE:
1946{
1947 eio_wd wd2 = 0;
1948 dREQ;
1949
1950 req->type = EIO_RENAME;
1951 req_set_path1 (req, oldpath);
1952 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1953 req->int2 = flags;
1954 req->int3 = (long)wd2;
1955
1956 REQ_SEND;
1957}
1958
1959void
1960aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1961 PPCODE:
1962{
1963 dREQ;
1964
1965 req->type = EIO_MKNOD;
1966 req->int2 = (mode_t)mode;
1967 req->offs = dev;
1968 req_set_path1 (req, pathname);
1969
1970 REQ_SEND;
1971}
1972
1973void
1974aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1975 ALIAS:
1976 aio_mtouch = EIO_MTOUCH
1977 aio_msync = EIO_MSYNC
1978 PPCODE:
1979{
1980 STRLEN svlen;
1981 char *svptr = SvPVbyte (data, svlen);
1982 UV len = SvUV (length);
1983
1984 if (flags < 0)
1985 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1986
1987 if (offset < 0)
1988 offset += svlen;
1989
1990 if (offset < 0 || offset > svlen)
1991 croak ("offset outside of scalar");
1992
1993 if (!SvOK (length) || len + offset > svlen)
1994 len = svlen - offset;
1995
1996 {
1997 dREQ;
1998
1999 req->type = ix;
2000 req->sv2 = SvREFCNT_inc (data);
2001 req->ptr2 = (char *)svptr + offset;
2002 req->size = len;
2003 req->int1 = flags;
2004
2005 REQ_SEND;
2006 }
2007}
2008
2009void
2010aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2011 PPCODE:
2012{
2013 STRLEN svlen;
2014 char *svptr = SvPVbyte (data, svlen);
2015 UV len = SvUV (length);
2016
2017 if (offset < 0)
2018 offset += svlen;
2019
2020 if (offset < 0 || offset > svlen)
2021 croak ("offset outside of scalar");
2022
2023 if (!SvOK (length) || len + offset > svlen)
2024 len = svlen - offset;
2025
2026 {
2027 dREQ;
2028
2029 req->type = EIO_MLOCK;
2030 req->sv2 = SvREFCNT_inc (data);
2031 req->ptr2 = (char *)svptr + offset;
2032 req->size = len;
2033
2034 REQ_SEND;
2035 }
2036}
2037
2038void
2039aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2040 PPCODE:
2041{
2042 dREQ;
2043
2044 req->type = EIO_MLOCKALL;
2045 req->int1 = flags;
2046
2047 REQ_SEND;
2048}
2049
2050void
2051aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2052 PPCODE:
2053{
2054 int fd = s_fileno_croak (fh, 0);
2055 dREQ;
2056
2057 req->type = EIO_CUSTOM;
2058 req->sv1 = newSVsv (fh);
2059 req->int1 = fd;
2060
2061 req->feed = fiemap;
2062#if HAVE_FIEMAP
2063 /* keep our fingers crossed that the next two types are 64 bit */
2064 req->offs = start;
2065 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2066 req->int2 = flags;
2067 req->int3 = SvOK (count) ? SvIV (count) : -1;
2068#endif
2069
2070 REQ_SEND;
2071}
2072
2073void
2074aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
2075 PPCODE:
2076{
2077 char *svptr = 0;
2078
2079 sv_clear_foreign (data);
2080
2081 if (length) /* known length, directly read into scalar */
2082 {
2083 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2084 svptr = sv_grow (data, length + 1);
2085 else if (SvCUR (data) < length)
2086 croak ("length outside of scalar, and cannot grow");
2087 else
2088 svptr = SvPVbyte_nolen (data);
2089 }
2090
2091 {
2092 dREQ;
2093
2094 req->type = EIO_SLURP;
2095 req_set_path1 (req, pathname);
2096 req->offs = offset;
2097 req->size = length;
2098 req->sv2 = SvREFCNT_inc (data);
2099 req->ptr2 = svptr;
2100
2101 if (!SvREADONLY (data))
2102 {
2103 SvREADONLY_on (data);
2104 req->flags |= FLAG_SV2_RO_OFF;
2105 }
2106
2107 REQ_SEND;
2108 }
2109}
2110
2111void
2112aio_busy (double delay, SV *callback = &PL_sv_undef)
2113 PPCODE:
2114{
2115 dREQ;
2116
2117 req->type = EIO_BUSY;
2118 req->nv1 = delay < 0. ? 0. : delay;
2119
2120 REQ_SEND;
2121}
2122
2123void
2124aio_group (SV *callback = &PL_sv_undef)
2125 PPCODE:
2126{
2127 dREQ;
2128
2129 req->type = EIO_GROUP;
2130
2131 PUTBACK;
2132 req_submit (req);
2133 SPAGAIN;
2134
2135 XPUSHs (req_sv (req, aio_grp_stash));
2136}
2137
2138void
2139aio_nop (SV *callback = &PL_sv_undef)
2140 ALIAS:
2141 aio_nop = EIO_NOP
2142 aio_sync = EIO_SYNC
2143 PPCODE:
2144{
2145 dREQ;
2146
2147 req->type = ix;
2148
2149 REQ_SEND;
2150}
2151
2152int
2153aioreq_pri (int pri = NO_INIT)
746 CODE: 2154 CODE:
2155 RETVAL = next_pri;
2156 if (items > 0)
2157 {
2158 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
2159 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
2160 next_pri = pri;
2161 }
2162 OUTPUT:
2163 RETVAL
2164
2165void
2166aioreq_nice (int nice = 0)
2167 CODE:
2168 nice = next_pri - nice;
2169 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
2170 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
2171 next_pri = nice;
2172
2173void
2174flush ()
2175 CODE:
747 while (nreqs) 2176 while (eio_nreqs ())
748 { 2177 {
749 poll_wait (); 2178 poll_wait ();
750 poll_cb (); 2179 poll_cb ();
751 } 2180 }
752 2181
753void 2182int
754poll() 2183poll ()
755 PROTOTYPE:
756 CODE: 2184 CODE:
757 if (nreqs)
758 {
759 poll_wait (); 2185 poll_wait ();
760 poll_cb (); 2186 RETVAL = poll_cb ();
761 }
762
763int
764poll_fileno()
765 PROTOTYPE:
766 CODE:
767 RETVAL = respipe [0];
768 OUTPUT: 2187 OUTPUT:
769 RETVAL 2188 RETVAL
770 2189
771int 2190int
2191poll_fileno ()
2192 CODE:
2193 RETVAL = s_epipe_fd (&respipe);
2194 OUTPUT:
2195 RETVAL
2196
2197int
772poll_cb(...) 2198poll_cb (...)
773 PROTOTYPE: 2199 PROTOTYPE:
774 CODE: 2200 CODE:
775 RETVAL = poll_cb (); 2201 RETVAL = poll_cb ();
776 OUTPUT: 2202 OUTPUT:
777 RETVAL 2203 RETVAL
778 2204
779void 2205void
780poll_wait() 2206poll_wait ()
2207 CODE:
2208 poll_wait ();
2209
2210int
2211nreqs ()
2212 CODE:
2213 RETVAL = eio_nreqs ();
2214 OUTPUT:
2215 RETVAL
2216
2217int
2218nready ()
2219 CODE:
2220 RETVAL = eio_nready ();
2221 OUTPUT:
2222 RETVAL
2223
2224int
2225npending ()
2226 CODE:
2227 RETVAL = eio_npending ();
2228 OUTPUT:
2229 RETVAL
2230
2231int
2232nthreads ()
2233 CODE:
2234 RETVAL = eio_nthreads ();
2235 OUTPUT:
2236 RETVAL
2237
2238int
2239fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2240 CODE:
2241 RETVAL = posix_fadvise (fh, offset, length, advice);
2242 OUTPUT:
2243 RETVAL
2244
2245IV
2246sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2247 CODE:
2248 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2249 OUTPUT:
2250 RETVAL
2251
2252void
2253mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2254 PPCODE:
2255 sv_clear_foreign (scalar);
2256{
2257 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2258 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2259 if (addr == (void *)-1)
2260 XSRETURN_NO;
2261
2262 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2263
2264 if (!(prot & PROT_WRITE))
2265 SvREADONLY_on (scalar);
2266
2267 XSRETURN_YES;
2268}
2269
2270void
2271munmap (SV *scalar)
2272 CODE:
2273 sv_clear_foreign (scalar);
2274
2275SV *
2276mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2277 CODE:
2278{
2279 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2280 void *new;
2281
2282 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2283 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2284
2285 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2286
2287 RETVAL = &PL_sv_no;
2288
2289 if (new != (void *)-1)
2290 {
2291 RETVAL = new == (void *)mg->mg_ptr
2292 ? newSVpvn ("0 but true", 10)
2293 : &PL_sv_yes;
2294
2295 mg->mg_ptr = (char *)new;
2296 mg->mg_obj = (SV *)new_length;
2297
2298 SvPVX (scalar) = mg->mg_ptr;
2299 SvCUR_set (scalar, new_length);
2300 }
2301}
2302 OUTPUT:
2303 RETVAL
2304
2305int
2306madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2307 ALIAS:
2308 mprotect = 1
2309 CODE:
2310{
2311 STRLEN svlen;
2312 void *addr = SvPVbyte (scalar, svlen);
2313 STRLEN len = SvUV (length);
2314
2315 if (offset < 0)
2316 offset += svlen;
2317
2318 if (offset < 0 || offset > svlen)
2319 croak ("offset outside of scalar");
2320
2321 if (!SvOK (length) || len + offset > svlen)
2322 len = svlen - offset;
2323
2324 addr = (void *)(((intptr_t)addr) + offset);
2325 eio_page_align (&addr, &len);
2326
2327 switch (ix)
2328 {
2329 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2330 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2331 }
2332}
2333 OUTPUT:
2334 RETVAL
2335
2336int
2337munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2338 CODE:
2339{
2340 STRLEN svlen;
2341 void *addr = SvPVbyte (scalar, svlen);
2342 size_t len = SvUV (length);
2343
2344 if (offset < 0)
2345 offset += svlen;
2346
2347 if (offset < 0 || offset > svlen)
2348 croak ("offset outside of scalar");
2349
2350 if (!SvOK (length) || len + offset > svlen)
2351 len = svlen - offset;
2352
2353 addr = (void *)(((intptr_t)addr) + offset);
2354 eio_page_align (&addr, &len);
2355#if _POSIX_MEMLOCK_RANGE
2356 RETVAL = munlock (addr, len);
2357#else
2358 RETVAL = EIO_ENOSYS ();
2359#endif
2360}
2361 OUTPUT:
2362 RETVAL
2363
2364int
2365mlockall (int flags)
2366 PROTOTYPE: $;
2367 CODE:
2368 RETVAL = eio_mlockall_sync (flags);
2369 OUTPUT:
2370 RETVAL
2371
2372int
2373munlockall ()
2374 CODE:
2375#if _POSIX_MEMLOCK
2376 munlockall ();
2377#else
2378 RETVAL = EIO_ENOSYS ();
2379#endif
2380 OUTPUT:
2381 RETVAL
2382
2383int
2384statx (SV8 *pathname, int flags, UV mask)
2385 CODE:
2386{
2387 /* undocumented, and might go away, and anyway, should use eio_statx */
2388 SV *wdsv = 0;
2389 SV *pathsv = 0;
2390 eio_wd wd = EIO_CWD;
2391 void *ptr;
2392 int res;
2393
2394 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2395 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2396
2397 SvREFCNT_dec (pathsv);
2398 SvREFCNT_dec (wdsv);
2399}
2400 OUTPUT:
2401 RETVAL
2402
2403U32
2404stx_mode ()
781 PROTOTYPE: 2405 PROTOTYPE:
782 CODE: 2406 CODE:
2407#if HAVE_STATX
2408 RETVAL = stx.stx_mode;
2409#else
2410 XSRETURN_UNDEF;
2411#endif
2412 OUTPUT:
2413 RETVAL
2414
2415#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2416#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2417#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2418#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2419#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2420#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2421#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2422#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2423#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2424#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2425#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2426#define STATX_OFFSET_size statx_offsetof (stx_size)
2427#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2428#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2429#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2430#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2431#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2432#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2433
2434U32
2435stx_mask ()
2436 PROTOTYPE:
2437 ALIAS:
2438 stx_mask = STATX_OFFSET_mask
2439 stx_blksize = STATX_OFFSET_blksize
2440 stx_nlink = STATX_OFFSET_nlink
2441 stx_uid = STATX_OFFSET_uid
2442 stx_gid = STATX_OFFSET_gid
2443 stx_rdev_major = STATX_OFFSET_rdev_major
2444 stx_rdev_minor = STATX_OFFSET_rdev_minor
2445 stx_dev_major = STATX_OFFSET_dev_major
2446 stx_dev_minor = STATX_OFFSET_dev_minor
2447 CODE:
2448#if HAVE_STATX
2449 RETVAL = *(__u32 *)((char *)&stx + ix);
2450#else
2451 XSRETURN_UNDEF;
2452#endif
2453 OUTPUT:
2454 RETVAL
2455
2456VAL64
2457stx_attributes ()
2458 PROTOTYPE:
2459 ALIAS:
2460 stx_attributes = STATX_OFFSET_attributes
2461 stx_ino = STATX_OFFSET_ino
2462 stx_size = STATX_OFFSET_size
2463 stx_blocks = STATX_OFFSET_blocks
2464 stx_attributes_mask = STATX_OFFSET_attributes_mask
2465 CODE:
2466#if HAVE_STATX
2467 RETVAL = *(__u64 *)((char *)&stx + ix);
2468#else
2469 XSRETURN_UNDEF;
2470#endif
2471 OUTPUT:
2472 RETVAL
2473
2474NV
2475stx_atime ()
2476 PROTOTYPE:
2477 ALIAS:
2478 stx_atime = STATX_OFFSET_atime
2479 stx_btime = STATX_OFFSET_btime
2480 stx_ctime = STATX_OFFSET_ctime
2481 stx_mtime = STATX_OFFSET_mtime
2482 CODE:
2483#if HAVE_STATX
2484 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2485 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2486#else
2487 XSRETURN_UNDEF;
2488#endif
2489 OUTPUT:
2490 RETVAL
2491
2492VAL64
2493stx_atimesec ()
2494 PROTOTYPE:
2495 ALIAS:
2496 stx_atimesec = STATX_OFFSET_atime
2497 stx_btimesec = STATX_OFFSET_btime
2498 stx_ctimesec = STATX_OFFSET_ctime
2499 stx_mtimesec = STATX_OFFSET_mtime
2500 CODE:
2501#if HAVE_STATX
2502 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2503 RETVAL = ts->tv_sec;
2504#else
2505 XSRETURN_UNDEF;
2506#endif
2507 OUTPUT:
2508 RETVAL
2509
2510U32
2511stx_atimensec ()
2512 PROTOTYPE:
2513 ALIAS:
2514 stx_atimensec = STATX_OFFSET_atime
2515 stx_btimensec = STATX_OFFSET_btime
2516 stx_ctimensec = STATX_OFFSET_ctime
2517 stx_mtimensec = STATX_OFFSET_mtime
2518 CODE:
2519#if HAVE_STATX
2520 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2521 RETVAL = ts->tv_nsec;
2522#else
2523 RETVAL = 0;
2524#endif
2525 OUTPUT:
2526 RETVAL
2527
2528void
2529accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2530 PPCODE:
2531{
2532 SV *retval;
2533#if HAVE_ACCEPT4
2534 socklen_t salen_ = salen ? salen + 1 : 0;
2535
783 if (nreqs) 2536 if (salen)
784 poll_wait (); 2537 {
2538 sv_upgrade (sockaddr, SVt_PV);
2539 sv_grow (sockaddr, salen_);
2540 }
2541
2542 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2543
2544 retval = newmortalFH (res, O_RDWR);
2545
2546 if (res >= 0 && salen > 0)
2547 {
2548 if (salen_ > salen + 1)
2549 salen_ = salen + 1;
2550
2551 SvPOK_only (sockaddr);
2552 SvCUR_set (sockaddr, salen_);
2553 }
2554#else
2555 errno = ENOSYS;
2556 retval = &PL_sv_undef;
2557#endif
2558 XPUSHs (retval);
2559}
2560
2561ssize_t
2562splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2563 CODE:
2564{
2565#if HAVE_LINUX_SPLICE
2566 loff_t off_in_, off_out_;
2567 RETVAL = splice (
2568 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2569 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2570 length, flags
2571 );
2572#else
2573 RETVAL = EIO_ENOSYS ();
2574#endif
2575}
2576 OUTPUT:
2577 RETVAL
2578
2579ssize_t
2580tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2581 CODE:
2582#if HAVE_LINUX_SPLICE
2583 RETVAL = tee (rfh, wfh, length, flags);
2584#else
2585 RETVAL = EIO_ENOSYS ();
2586#endif
2587 OUTPUT:
2588 RETVAL
785 2589
786int 2590int
787nreqs() 2591pipesize (aio_rfd rfh, int new_size = -1)
2592 PROTOTYPE: $;$
2593 CODE:
2594#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2595 if (new_size >= 0)
2596 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2597 else
2598 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2599#else
2600 errno = ENOSYS;
2601 RETVAL = -1;
2602#endif
2603 OUTPUT:
2604 RETVAL
2605
2606void
2607pipe2 (int flags = 0)
788 PROTOTYPE: 2608 PROTOTYPE: ;$
2609 PPCODE:
2610{
2611 int fd[2];
2612 int res;
2613
2614 if (flags)
2615#if HAVE_PIPE2
2616 res = pipe2 (fd, flags);
2617#else
2618 res = (errno = ENOSYS, -1);
2619#endif
2620 else
2621 res = pipe (fd);
2622
2623 if (!res)
2624 {
2625 EXTEND (SP, 2);
2626 PUSHs (newmortalFH (fd[0], O_RDONLY));
2627 PUSHs (newmortalFH (fd[1], O_WRONLY));
2628 }
2629}
2630
2631void
2632pidfd_open (int pid, unsigned int flags = 0)
2633 PPCODE:
2634{
2635 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2636 int fd = syscall (SYS_pidfd_open, pid, flags);
2637 XPUSHs (newmortalFH (fd, O_RDWR));
2638}
2639
2640int
2641pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
2642 PPCODE:
2643{
2644 int res;
2645 siginfo_t si = { 0 };
2646
2647 if (SvOK (siginfo))
2648 {
2649 HV *hv;
2650 SV **svp;
2651
2652 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2653 croak ("siginfo argument must be a hashref code, pid, uid and value_int or value_ptr members, caught");
2654
2655 hv = (HV *)SvRV (siginfo);
2656
2657 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2658 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2659 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2660 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2661 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2662 }
2663
2664 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2665 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2666
2667 XPUSHs (sv_2mortal (newSViv (res)));
2668}
2669
2670void
2671pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2672 PPCODE:
2673{
2674 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2675 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2676 XPUSHs (newmortalFH (fd, O_RDWR));
2677}
2678
2679void
2680eventfd (unsigned int initval = 0, int flags = 0)
2681 PPCODE:
2682{
2683 int fd;
2684#if HAVE_EVENTFD
2685 fd = eventfd (initval, flags);
2686#else
2687 fd = (errno = ENOSYS, -1);
2688#endif
2689
2690 XPUSHs (newmortalFH (fd, O_RDWR));
2691}
2692
2693void
2694timerfd_create (int clockid, int flags = 0)
2695 PPCODE:
2696{
2697 int fd;
2698#if HAVE_TIMERFD
2699 fd = timerfd_create (clockid, flags);
2700#else
2701 fd = (errno = ENOSYS, -1);
2702#endif
2703
2704 XPUSHs (newmortalFH (fd, O_RDWR));
2705}
2706
2707void
2708timerfd_settime (SV *fh, int flags, NV interval, NV value)
2709 PPCODE:
2710{
2711 int fd = s_fileno_croak (fh, 0);
2712#if HAVE_TIMERFD
2713 int res;
2714 struct itimerspec its, ots;
2715
2716 ts_set (&its.it_interval, interval);
2717 ts_set (&its.it_value , value);
2718 res = timerfd_settime (fd, flags, &its, &ots);
2719
2720 if (!res)
2721 {
2722 EXTEND (SP, 2);
2723 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2724 PUSHs (newSVnv (ts_get (&ots.it_value)));
2725 }
2726#else
2727 errno = ENOSYS;
2728#endif
2729}
2730
2731void
2732timerfd_gettime (SV *fh)
2733 PPCODE:
2734{
2735 int fd = s_fileno_croak (fh, 0);
2736#if HAVE_TIMERFD
2737 int res;
2738 struct itimerspec ots;
2739 res = timerfd_gettime (fd, &ots);
2740
2741 if (!res)
2742 {
2743 EXTEND (SP, 2);
2744 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2745 PUSHs (newSVnv (ts_get (&ots.it_value)));
2746 }
2747#else
2748 errno = ENOSYS;
2749#endif
2750}
2751
2752void
2753memfd_create (SV8 *pathname, int flags = 0)
2754 PPCODE:
2755{
2756 int fd;
2757#if HAVE_MEMFD_CREATE
2758 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2759#else
2760 fd = (errno = ENOSYS, -1);
2761#endif
2762
2763 XPUSHs (newmortalFH (fd, O_RDWR));
2764}
2765
2766UV
2767get_fdlimit ()
789 CODE: 2768 CODE:
790 RETVAL = nreqs; 2769#if HAVE_RLIMITS
2770 struct rlimit rl;
2771 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2772 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2773#endif
2774 XSRETURN_UNDEF;
791 OUTPUT: 2775 OUTPUT:
792 RETVAL 2776 RETVAL
793 2777
2778void
2779min_fdlimit (UV limit = 0x7fffffffU)
2780 CODE:
2781{
2782#if HAVE_RLIMITS
2783 struct rlimit rl;
2784 rlim_t orig_rlim_max;
2785 UV bit;
2786
2787 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2788 goto fail;
2789
2790 if (rl.rlim_cur == RLIM_INFINITY)
2791 XSRETURN_YES;
2792
2793 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2794
2795 if (rl.rlim_cur < limit)
2796 {
2797 rl.rlim_cur = limit;
2798
2799 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2800 rl.rlim_max = rl.rlim_cur;
2801 }
2802
2803 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2804 XSRETURN_YES;
2805
2806 if (errno == EPERM)
2807 {
2808 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2809 /* our limit overflows a system-wide limit */
2810 /* try an adaptive algorithm, but do not lower the hardlimit */
2811 rl.rlim_max = 0;
2812 for (bit = 0x40000000U; bit; bit >>= 1)
2813 {
2814 rl.rlim_max |= bit;
2815 rl.rlim_cur = rl.rlim_max;
2816
2817 /* never decrease the hard limit */
2818 if (rl.rlim_max < orig_rlim_max)
2819 break;
2820
2821 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2822 rl.rlim_max &= ~bit; /* too high, remove bit again */
2823 }
2824
2825 /* now, raise the soft limit to the max permitted */
2826 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2827 {
2828 rl.rlim_cur = rl.rlim_max;
2829 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2830 errno = EPERM;
2831 }
2832 }
2833#endif
2834 fail:
2835 XSRETURN_UNDEF;
2836}
2837
2838void _on_next_submit (SV *cb)
2839 CODE:
2840 SvREFCNT_dec (on_next_submit);
2841 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2842
2843PROTOTYPES: DISABLE
2844
2845MODULE = IO::AIO PACKAGE = IO::AIO::WD
2846
2847BOOT:
2848{
2849 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2850 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2851}
2852
2853void
2854DESTROY (SV *self)
2855 CODE:
2856{
2857 aio_wd wd = SvAIO_WD (self);
2858#if HAVE_AT
2859 {
2860 SV *callback = &PL_sv_undef;
2861 dREQ; /* clobbers next_pri :/ */
2862 next_pri = req->pri; /* restore next_pri */
2863 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2864 req->type = EIO_WD_CLOSE;
2865 req->wd = wd;
2866 REQ_SEND;
2867 }
2868#else
2869 eio_wd_close_sync (wd);
2870#endif
2871}
2872
2873MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2874
2875void
2876cancel (aio_req_ornot req)
2877 CODE:
2878 eio_cancel (req);
2879
2880void
2881cb (aio_req_ornot req, SV *callback = NO_INIT)
2882 PPCODE:
2883{
2884 if (GIMME_V != G_VOID)
2885 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2886
2887 if (items > 1)
2888 {
2889 SV *cb_cv = get_cb (callback);
2890
2891 SvREFCNT_dec (req->callback);
2892 req->callback = SvREFCNT_inc (cb_cv);
2893 }
2894}
2895
2896MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2897
2898void
2899add (aio_req grp, ...)
2900 PPCODE:
2901{
2902 int i;
2903
2904 if (grp->int1 == 2)
2905 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2906
2907 for (i = 1; i < items; ++i )
2908 {
2909 aio_req req;
2910
2911 if (GIMME_V != G_VOID)
2912 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2913
2914 req = SvAIO_REQ (ST (i));
2915
2916 if (req)
2917 eio_grp_add (grp, req);
2918 }
2919}
2920
2921void
2922cancel_subs (aio_req_ornot req)
2923 CODE:
2924 req_cancel_subs (req);
2925
2926void
2927result (aio_req grp, ...)
2928 CODE:
2929{
2930 int i;
2931 AV *av;
2932
2933 grp->errorno = errno;
2934
2935 av = newAV ();
2936 av_extend (av, items - 1);
2937
2938 for (i = 1; i < items; ++i )
2939 av_push (av, newSVsv (ST (i)));
2940
2941 SvREFCNT_dec (grp->sv1);
2942 grp->sv1 = (SV *)av;
2943}
2944
2945void
2946errno (aio_req grp, int errorno = errno)
2947 CODE:
2948 grp->errorno = errorno;
2949
2950void
2951limit (aio_req grp, int limit)
2952 CODE:
2953 eio_grp_limit (grp, limit);
2954
2955void
2956feed (aio_req grp, SV *callback = &PL_sv_undef)
2957 CODE:
2958{
2959 SvREFCNT_dec (grp->sv2);
2960 grp->sv2 = newSVsv (callback);
2961 grp->feed = aio_grp_feed;
2962
2963 if (grp->int2 <= 0)
2964 grp->int2 = 2;
2965
2966 eio_grp_limit (grp, grp->int2);
2967}
2968

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