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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.47 by root, Sun Oct 22 10:10:23 2006 UTC vs.
Revision 1.296 by root, Mon Sep 5 08:43:58 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)
48#endif 251#endif
49 252
50enum { 253/*****************************************************************************/
51 REQ_QUIT, 254
52 REQ_OPEN, REQ_CLOSE, 255#if !_POSIX_MAPPED_FILES
53 REQ_READ, REQ_WRITE, REQ_READAHEAD, 256# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
54 REQ_SENDFILE, 257# define munmap(addr,length) EIO_ENOSYS ()
55 REQ_STAT, REQ_LSTAT, REQ_FSTAT, 258#endif
56 REQ_FSYNC, REQ_FDATASYNC, 259
57 REQ_UNLINK, REQ_RMDIR, REQ_RENAME, 260#if !_POSIX_MEMORY_PROTECTION
58 REQ_READDIR, 261# define mprotect(addr,len,prot) EIO_ENOSYS ()
59 REQ_LINK, REQ_SYMLINK, 262#endif
60 REQ_SLEEP, 263
61 REQ_GROUP, 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
62}; 293};
63 294
64#define AIO_REQ_KLASS "IO::AIO::REQ" 295static int ecb_cold
65#define AIO_GRP_KLASS "IO::AIO::GRP" 296sysfree_free (pTHX_ SV *sv, MAGIC *mg)
66
67typedef struct aio_cb
68{ 297{
69 struct aio_cb *grp, *grp_prev, *grp_next; 298 free (mg->mg_ptr);
299 mg->mg_obj = 0; /* just in case */
70 300
71 struct aio_cb *volatile next; 301 SvREADONLY_off (sv);
72 302
73 SV *self; /* the perl counterpart of this request, if any */ 303 if (SvPVX (sv) != mg->mg_ptr)
304 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
74 305
75 SV *data, *callback; 306 SvCUR_set (sv, 0);
76 SV *fh, *fh2; 307 SvPVX (sv) = 0;
77 void *dataptr, *data2ptr; 308 SvOK_off (sv);
78 Stat_t *statdata;
79 off_t offset;
80 size_t length;
81 ssize_t result;
82 309
83 int type; 310 return 0;
84 int fd, fd2;
85 int errorno;
86 STRLEN dataoffset;
87 mode_t mode; /* open */
88 unsigned char cancelled;
89} aio_cb;
90
91typedef aio_cb *aio_req;
92typedef aio_cb *aio_req_ornot;
93
94static int started, wanted;
95static volatile int nreqs;
96static int max_outstanding = 1<<30;
97static int respipe [2];
98
99static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
100static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
101static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
102
103static volatile aio_req reqs, reqe; /* queue start, queue end */
104static volatile aio_req ress, rese; /* queue start, queue end */
105
106static void req_free (aio_req req);
107
108/* must be called at most once */
109static SV *req_sv (aio_req req, const char *klass)
110{
111 req->self = (SV *)newHV ();
112 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
113
114 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));
115} 311}
116 312
117static aio_req SvAIO_REQ (SV *sv) 313static MGVTBL sysfree_vtbl = {
118{ 314 0, 0, 0, 0, sysfree_free
119 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 315};
120 croak ("object of class " AIO_REQ_KLASS " expected");
121 316
122 MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 317/*****************************************************************************/
123 318
124 return mg ? (aio_req)mg->mg_ptr : 0; 319/* helper: set scalar to foreign ptr with custom free */
125} 320ecb_noinline
126 321static void
127static void poll_wait () 322sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
128{ 323{
129 if (nreqs && !ress) 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 (;;)
130 { 405 {
131 fd_set rfd; 406 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
132 FD_ZERO(&rfd); 407 char scratch[3072];
133 FD_SET(respipe [0], &rfd); 408 struct fiemap *incmap = (struct fiemap *)scratch;
134 409
135 select (respipe [0] + 1, &rfd, 0, 0, 0); 410 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
136 } 411 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
137} 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);
138 415
139static void req_invoke (aio_req req) 416 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
140{
141 dSP;
142 int errorno = errno;
143
144 if (req->cancelled || !SvOK (req->callback))
145 return; 417 return;
146 418
147 errno = req->errorno; 419 if (!incmap->fm_mapped_extents)
420 goto done;
148 421
149 ENTER; 422 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
150 PUSHMARK (SP); 423 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
424 errno = ENOMEM;
425 if (!fiemap)
426 return;
151 427
152 switch (req->type) 428 req->ptr1 = fiemap;
153 { 429
154 case REQ_READDIR: 430 for (count = 0; count < incmap->fm_mapped_extents; ++count)
155 { 431 {
156 SV *rv = &PL_sv_undef; 432 struct fiemap_extent *e = incmap->fm_extents + count;
157 433
158 if (req->result >= 0) 434 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
159 {
160 char *buf = req->data2ptr;
161 AV *av = newAV ();
162 435
163 while (req->result) 436 if (e->fe_logical >= end_offset)
164 { 437 goto done;
165 SV *sv = newSVpv (buf, 0);
166 438
167 av_push (av, sv); 439 if (e->fe_flags & FIEMAP_EXTENT_LAST)
168 buf += SvCUR (sv) + 1; 440 goto done;
169 req->result--;
170 }
171 441
172 rv = sv_2mortal (newRV_noinc ((SV *)av));
173 }
174
175 XPUSHs (rv);
176 }
177 break;
178
179 case REQ_OPEN:
180 {
181 /* convert fd to fh */
182 SV *fh;
183
184 XPUSHs (sv_2mortal (newSViv (req->result)));
185 PUTBACK;
186 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
187 SPAGAIN;
188
189 fh = SvREFCNT_inc (POPs);
190
191 PUSHMARK (SP);
192 XPUSHs (sv_2mortal (fh));
193 }
194 break;
195
196 case REQ_SLEEP:
197 case REQ_GROUP:
198 break;
199
200 default:
201 XPUSHs (sv_2mortal (newSViv (req->result)));
202 break;
203 }
204
205
206 PUTBACK;
207 call_sv (req->callback, G_VOID | G_EVAL);
208 SPAGAIN;
209
210 if (SvTRUE (ERRSV))
211 {
212 req_free (req);
213 croak (0);
214 }
215
216 LEAVE;
217
218 errno = errorno;
219}
220
221static void req_free (aio_req req)
222{
223 if (req->grp)
224 {
225 aio_req grp = req->grp;
226
227 /* unlink request */
228 req->grp_next->grp_prev = req->grp_prev;
229 req->grp_prev->grp_next = req->grp_next;
230
231 if (grp->grp_next == grp && grp->fd)
232 {
233 req_invoke (grp);
234 req_free (grp);
235 } 442 }
236 } 443 }
237 444
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()
464#endif
465
466enum {
467 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
468};
469
470typedef eio_req *aio_req;
471typedef eio_req *aio_req_ornot;
472typedef eio_wd aio_wd;
473
474static SV *on_next_submit;
475static int next_pri = EIO_PRI_DEFAULT;
476static int max_outstanding;
477
478static s_epipe respipe;
479
480static void req_destroy (aio_req req);
481static void req_cancel (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}
496
497/* must be called at most once */
498ecb_noinline
499static SV *
500req_sv (aio_req req, HV *stash)
501{
502 if (!req->self)
503 {
504 req->self = (SV *)newHV ();
505 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
506 }
507
508 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
509}
510
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)
520{
521 MAGIC *mg;
522
523 if (!SvROK (sv)
524 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
525 || (SvSTASH (SvRV (sv)) != aio_grp_stash
526 && SvSTASH (SvRV (sv)) != aio_req_stash
527 && !sv_derived_from (sv, "IO::AIO::REQ")))
528 croak ("object of class IO::AIO::REQ expected");
529
530 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
531
532 return mg ? (aio_req)mg->mg_ptr : 0;
533}
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
572aio_grp_feed (aio_req grp)
573{
574 if (grp->sv2 && SvOK (grp->sv2))
575 {
576 dSP;
577
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))
628 {
629 sv_result = sv_result_cache; sv_result_cache = 0;
630 SvIV_set (sv_result, req->result);
631 SvIOK_only (sv_result);
632 }
633 else
634 {
635 sv_result = newSViv (req->result);
636 SvREADONLY_on (sv_result);
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;
892 }
893
894 return !!SvTRUE (ERRSV);
895}
896
897static void
898req_destroy (aio_req req)
899{
238 if (req->self) 900 if (req->self)
239 { 901 {
240 sv_unmagic (req->self, PERL_MAGIC_ext); 902 sv_unmagic (req->self, PERL_MAGIC_ext);
241 SvREFCNT_dec (req->self); 903 SvREFCNT_dec (req->self);
242 } 904 }
243 905
244 if (req->data)
245 SvREFCNT_dec (req->data);
246
247 if (req->fh)
248 SvREFCNT_dec (req->fh); 906 SvREFCNT_dec (req->sv1);
249
250 if (req->fh2)
251 SvREFCNT_dec (req->fh2); 907 SvREFCNT_dec (req->sv2);
252 908 SvREFCNT_dec (req->sv3);
253 if (req->statdata) 909 SvREFCNT_dec (req->sv4);
254 Safefree (req->statdata);
255
256 if (req->callback)
257 SvREFCNT_dec (req->callback); 910 SvREFCNT_dec (req->callback);
258 911
259 if (req->type == REQ_READDIR && req->result >= 0)
260 free (req->data2ptr);
261
262 Safefree (req); 912 free (req);
263} 913}
264 914
265static void req_cancel (aio_req req) 915static void
916req_cancel_subs (aio_req grp)
266{ 917{
267 req->cancelled = 1;
268
269 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 ())
270 { 939 {
271 aio_req sub; 940 int size;
272 941
273 for (sub = req->grp_next; sub != req; sub = sub->grp_next) 942 X_LOCK (EIO_POOL->reslock);
274 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);
275 } 952 }
276} 953}
277 954
278static int poll_cb () 955static int
956poll_cb (void)
279{ 957{
280 dSP;
281 int count = 0;
282 int do_croak = 0;
283 aio_req req;
284
285 for (;;) 958 for (;;)
286 { 959 {
287 pthread_mutex_lock (&reslock); 960 int res = eio_poll ();
288 req = ress;
289 961
290 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)
291 { 1034 {
292 ress = req->next; 1035 path = AvARRAY (rv)[1];
1036 wdob = AvARRAY (rv)[0];
293 1037
294 if (!ress) 1038 if (SvOK (wdob))
295 { 1039 {
296 /* read any signals sent by the worker threads */ 1040 *wd = SvAIO_WD (wdob);
297 char buf [32]; 1041 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
298 while (read (respipe [0], buf, 32) == 32)
299 ;
300
301 rese = 0;
302 } 1042 }
1043 else
1044 *wd = EIO_INVALID_WD;
303 } 1045 }
304 1046 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
305 pthread_mutex_unlock (&reslock);
306
307 if (!req)
308 break;
309
310 nreqs--;
311
312 if (req->type == REQ_QUIT)
313 started--;
314 else if (req->type == REQ_GROUP && req->grp_next != req)
315 { 1047 {
316 req->fd = 1; /* mark request as delayed */ 1048 *wd = (aio_wd)(long)SvIVX (rv);
317 continue; 1049 *wdsv = SvREFCNT_inc_NN (rv);
1050 *ptr = ".";
1051 return; /* path set to "." */
318 } 1052 }
319 else 1053 else
320 { 1054 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
321 if (req->type == REQ_READ)
322 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
323
324 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
325 SvREADONLY_off (req->data);
326
327 if (req->statdata)
328 {
329 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
330 PL_laststatval = req->result;
331 PL_statcache = *(req->statdata);
332 }
333
334 req_invoke (req);
335
336 count++;
337 }
338
339 req_free (req);
340 } 1055 }
341 1056
342 return count; 1057 *pathsv = newSVsv (path);
1058 *ptr = SvPVbyte_nolen (*pathsv);
343} 1059}
344 1060
345static void *aio_proc(void *arg); 1061ecb_noinline
346 1062static void
347static void start_thread (void) 1063req_set_path1 (aio_req req, SV *path)
348{ 1064{
349 sigset_t fullsigset, oldsigset; 1065 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
350 pthread_t tid;
351 pthread_attr_t attr;
352
353 pthread_attr_init (&attr);
354 pthread_attr_setstacksize (&attr, STACKSIZE);
355 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
356
357 sigfillset (&fullsigset);
358 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
359
360 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
361 started++;
362
363 sigprocmask (SIG_SETMASK, &oldsigset, 0);
364} 1066}
365 1067
366static 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)
367{ 1071{
368 while (started < wanted && nreqs >= started) 1072 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
369 start_thread ();
370 1073
371 nreqs++; 1074 switch (SvTYPE (rv))
372
373 pthread_mutex_lock (&reqlock);
374
375 req->next = 0;
376
377 if (reqe)
378 { 1075 {
379 reqe->next = req; 1076 case SVt_PVIO:
380 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;
381 } 1088 }
382 else
383 reqe = reqs = req;
384
385 pthread_cond_signal (&reqwait);
386 pthread_mutex_unlock (&reqlock);
387
388 if (nreqs > max_outstanding)
389 for (;;)
390 {
391 poll_cb ();
392
393 if (nreqs <= max_outstanding)
394 break;
395
396 poll_wait ();
397 }
398} 1089}
399 1090
400static void end_thread (void) 1091/*****************************************************************************/
401{
402 aio_req req;
403 Newz (0, req, 1, aio_cb);
404 req->type = REQ_QUIT;
405 1092
406 req_send (req); 1093static void
407} 1094ts_set (struct timespec *ts, NV value)
408
409static void min_parallel (int nthreads)
410{ 1095{
411 if (wanted < nthreads) 1096 ts->tv_sec = value;
412 wanted = nthreads; 1097 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
413} 1098}
414 1099
415static void max_parallel (int nthreads) 1100static NV
1101ts_get (const struct timespec *ts)
416{ 1102{
417 int cur = started; 1103 return ts->tv_sec + ts->tv_nsec * 1e-9;
1104}
418 1105
419 if (wanted > nthreads) 1106/*****************************************************************************/
420 wanted = nthreads;
421 1107
422 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 (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)
423 { 1120 {
424 end_thread (); 1121 SV **e = av_fetch (av, i, 0);
425 cur--; 1122
1123 if (e && *e)
1124 vecp[i] = SvPVbyte_nolen (*e);
1125 else
1126 vecp[i] = "";
426 } 1127 }
427 1128
428 while (started > wanted) 1129 vecp[nelem] = 0;
429 {
430 poll_wait ();
431 poll_cb ();
432 }
433}
434 1130
435static void create_pipe () 1131 return vecp;
436{
437 if (pipe (respipe))
438 croak ("unable to initialize result pipe");
439
440 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
441 croak ("cannot set result pipe to nonblocking mode");
442
443 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
444 croak ("cannot set result pipe to nonblocking mode");
445} 1132}
446 1133
447/*****************************************************************************/ 1134/*****************************************************************************/
448/* work around various missing functions */
449 1135
450#if !HAVE_PREADWRITE 1136XS(boot_IO__AIO) ecb_cold;
451# define pread aio_pread
452# define pwrite aio_pwrite
453 1137
454/* 1138MODULE = IO::AIO PACKAGE = IO::AIO
455 * make our pread/pwrite safe against themselves, but not against
456 * normal read/write by using a mutex. slows down execution a lot,
457 * but that's your problem, not mine.
458 */
459static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
460 1139
461static ssize_t pread (int fd, void *buf, size_t count, off_t offset) 1140PROTOTYPES: ENABLE
462{
463 ssize_t res;
464 off_t ooffset;
465 1141
466 pthread_mutex_lock (&preadwritelock); 1142BOOT:
467 ooffset = lseek (fd, 0, SEEK_CUR);
468 lseek (fd, offset, SEEK_SET);
469 res = read (fd, buf, count);
470 lseek (fd, ooffset, SEEK_SET);
471 pthread_mutex_unlock (&preadwritelock);
472
473 return res;
474}
475
476static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
477{ 1143{
478 ssize_t res; 1144 static const struct {
479 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 },
480 1151
481 pthread_mutex_lock (&preadwritelock); 1152 /* you have to re-run ./gendef0 after adding/removing any constants here */
482 ooffset = lseek (fd, 0, SEEK_CUR); 1153 /* the first block can be undef if missing */
483 lseek (fd, offset, SEEK_SET); 1154 const_iv (ENOSYS)
484 res = write (fd, buf, count); 1155 const_iv (EXDEV)
485 lseek (fd, offset, SEEK_SET); 1156 const_iv (EBADR)
486 pthread_mutex_unlock (&preadwritelock);
487 1157
488 return res; 1158 /* for lseek */
489} 1159 const_iv (SEEK_DATA)
490#endif 1160 const_iv (SEEK_HOLE)
491 1161
492#if !HAVE_FDATASYNC 1162 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
493# define fdatasync fsync 1163 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
494#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)
495 1168
496#if !HAVE_READAHEAD 1169 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
497# 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)
498 1174
499static ssize_t readahead (int fd, off_t offset, size_t count) 1175 /* the second block will be 0 when missing */
500{ 1176 const_iv (O_ACCMODE)
501 char readahead_buf[4096];
502 1177
503 while (count > 0) 1178 const_iv (O_RDONLY)
504 { 1179 const_iv (O_WRONLY)
505 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)
506 1185
507 pread (fd, readahead_buf, len, offset); 1186 const_iv (O_ASYNC)
508 offset += len; 1187 const_iv (O_DIRECT)
509 count -= len; 1188 const_iv (O_NOATIME)
510 }
511 1189
512 errno = 0; 1190 const_iv (O_CLOEXEC)
513} 1191 const_iv (O_NOCTTY)
514#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)
515 1203
516#if !HAVE_READDIR_R 1204 const_iv (S_IFIFO)
517# 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)
518 1213
519static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; 1214 const_iv (ST_RDONLY)
520 1215 const_iv (ST_NOSUID)
521static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) 1216 const_iv (ST_NODEV)
522{ 1217 const_iv (ST_NOEXEC)
523 struct dirent *e; 1218 const_iv (ST_SYNCHRONOUS)
524 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)
525 1226
526 pthread_mutex_lock (&readdirlock); 1227 const_iv (PROT_NONE)
1228 const_iv (PROT_EXEC)
1229 const_iv (PROT_READ)
1230 const_iv (PROT_WRITE)
527 1231
528 e = readdir (dirp); 1232 const_iv (MAP_PRIVATE)
529 errorno = errno; 1233 const_iv (MAP_SHARED)
1234 const_iv (MAP_FIXED)
1235 const_iv (MAP_ANONYMOUS)
530 1236
531 if (e) 1237 /* linuxish */
532 { 1238 const_iv (MAP_LOCKED)
533 *res = ent; 1239 const_iv (MAP_NORESERVE)
534 strcpy (ent->d_name, e->d_name); 1240 const_iv (MAP_POPULATE)
535 } 1241 const_iv (MAP_NONBLOCK)
536 else 1242 const_iv (MAP_GROWSDOWN)
537 *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)
538 1250
539 pthread_mutex_unlock (&readdirlock); 1251 const_iv (MREMAP_MAYMOVE)
1252 const_iv (MREMAP_FIXED)
540 1253
541 errno = errorno; 1254 const_iv (MSG_CMSG_CLOEXEC)
542 return e ? 0 : -1; 1255 const_iv (SOCK_CLOEXEC)
543}
544#endif
545 1256
546/* sendfile always needs emulation */ 1257 const_iv (F_DUPFD_CLOEXEC)
547static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
548{
549 ssize_t res;
550 1258
551 if (!count) 1259 const_iv (F_ADD_SEALS)
552 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)
553 1265
554#if HAVE_SENDFILE 1266 const_iv (F_OFD_GETLK)
555# if __linux 1267 const_iv (F_OFD_SETLK)
556 res = sendfile (ofd, ifd, &offset, count); 1268 const_iv (F_OFD_GETLKW)
557 1269
558# elif __freebsd 1270 const_iv (FIFREEZE)
559 /* 1271 const_iv (FITHAW)
560 * Of course, the freebsd sendfile is a dire hack with no thoughts 1272 const_iv (FITRIM)
561 * wasted on making it similar to other I/O functions. 1273 const_iv (FICLONE)
562 */ 1274 const_iv (FICLONERANGE)
1275 const_iv (FIDEDUPERANGE)
1276
1277 const_iv (FS_IOC_GETFLAGS)
1278 const_iv (FS_IOC_SETFLAGS)
1279 const_iv (FS_IOC_GETVERSION)
1280 const_iv (FS_IOC_SETVERSION)
1281 const_iv (FS_IOC_FIEMAP)
1282 const_iv (FS_IOC_FSGETXATTR)
1283 const_iv (FS_IOC_FSSETXATTR)
1284 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1285 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1286 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1287
1288 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1289
1290 const_iv (FS_SECRM_FL)
1291 const_iv (FS_UNRM_FL)
1292 const_iv (FS_COMPR_FL)
1293 const_iv (FS_SYNC_FL)
1294 const_iv (FS_IMMUTABLE_FL)
1295 const_iv (FS_APPEND_FL)
1296 const_iv (FS_NODUMP_FL)
1297 const_iv (FS_NOATIME_FL)
1298 const_iv (FS_DIRTY_FL)
1299 const_iv (FS_COMPRBLK_FL)
1300 const_iv (FS_NOCOMP_FL)
1301 const_iv (FS_ENCRYPT_FL)
1302 const_iv (FS_BTREE_FL)
1303 const_iv (FS_INDEX_FL)
1304 const_iv (FS_JOURNAL_DATA_FL)
1305 const_iv (FS_NOTAIL_FL)
1306 const_iv (FS_DIRSYNC_FL)
1307 const_iv (FS_TOPDIR_FL)
1308 const_iv (FS_FL_USER_MODIFIABLE)
1309
1310 const_iv (FS_XFLAG_REALTIME)
1311 const_iv (FS_XFLAG_PREALLOC)
1312 const_iv (FS_XFLAG_IMMUTABLE)
1313 const_iv (FS_XFLAG_APPEND)
1314 const_iv (FS_XFLAG_SYNC)
1315 const_iv (FS_XFLAG_NOATIME)
1316 const_iv (FS_XFLAG_NODUMP)
1317 const_iv (FS_XFLAG_RTINHERIT)
1318 const_iv (FS_XFLAG_PROJINHERIT)
1319 const_iv (FS_XFLAG_NOSYMLINKS)
1320 const_iv (FS_XFLAG_EXTSIZE)
1321 const_iv (FS_XFLAG_EXTSZINHERIT)
1322 const_iv (FS_XFLAG_NODEFRAG)
1323 const_iv (FS_XFLAG_FILESTREAM)
1324 const_iv (FS_XFLAG_DAX)
1325 const_iv (FS_XFLAG_HASATTR)
1326
1327 const_iv (FIEMAP_FLAG_SYNC)
1328 const_iv (FIEMAP_FLAG_XATTR)
1329 const_iv (FIEMAP_FLAGS_COMPAT)
1330 const_iv (FIEMAP_EXTENT_LAST)
1331 const_iv (FIEMAP_EXTENT_UNKNOWN)
1332 const_iv (FIEMAP_EXTENT_DELALLOC)
1333 const_iv (FIEMAP_EXTENT_ENCODED)
1334 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1335 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1336 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1337 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1338 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1339 const_iv (FIEMAP_EXTENT_MERGED)
1340 const_iv (FIEMAP_EXTENT_SHARED)
1341
1342 const_iv (SPLICE_F_MOVE)
1343 const_iv (SPLICE_F_NONBLOCK)
1344 const_iv (SPLICE_F_MORE)
1345 const_iv (SPLICE_F_GIFT)
1346
1347 const_iv (EFD_CLOEXEC)
1348 const_iv (EFD_NONBLOCK)
1349 const_iv (EFD_SEMAPHORE)
1350
1351 const_iv (MFD_CLOEXEC)
1352 const_iv (MFD_ALLOW_SEALING)
1353 const_iv (MFD_HUGETLB)
1354 const_iv (MFD_HUGETLB_2MB)
1355 const_iv (MFD_HUGETLB_1GB)
1356
1357 const_iv (CLOCK_REALTIME)
1358 const_iv (CLOCK_MONOTONIC)
1359 const_iv (CLOCK_BOOTTIME)
1360 const_iv (CLOCK_REALTIME_ALARM)
1361 const_iv (CLOCK_BOOTTIME_ALARM)
1362
1363 const_iv (TFD_NONBLOCK)
1364 const_iv (TFD_CLOEXEC)
1365
1366 const_iv (TFD_TIMER_ABSTIME)
1367 const_iv (TFD_TIMER_CANCEL_ON_SET)
1368
1369 const_iv (STATX_TYPE)
1370 const_iv (STATX_MODE)
1371 const_iv (STATX_NLINK)
1372 const_iv (STATX_UID)
1373 const_iv (STATX_GID)
1374 const_iv (STATX_ATIME)
1375 const_iv (STATX_MTIME)
1376 const_iv (STATX_CTIME)
1377 const_iv (STATX_INO)
1378 const_iv (STATX_SIZE)
1379 const_iv (STATX_BLOCKS)
1380 const_iv (STATX_BASIC_STATS)
1381 const_iv (STATX_ALL)
1382 const_iv (STATX_BTIME)
1383 const_iv (STATX_ATTR_COMPRESSED)
1384 const_iv (STATX_ATTR_IMMUTABLE)
1385 const_iv (STATX_ATTR_APPEND)
1386 const_iv (STATX_ATTR_NODUMP)
1387 const_iv (STATX_ATTR_ENCRYPTED)
1388 const_iv (STATX_ATTR_AUTOMOUNT)
1389
1390 const_iv (AT_FDCWD)
1391 const_iv (AT_SYMLINK_NOFOLLOW)
1392 const_iv (AT_EACCESS)
1393 const_iv (AT_REMOVEDIR)
1394 const_iv (AT_SYMLINK_FOLLOW)
1395 const_iv (AT_NO_AUTOMOUNT)
1396 const_iv (AT_EMPTY_PATH)
1397 const_iv (AT_STATX_SYNC_TYPE)
1398 const_iv (AT_STATX_AS_STAT)
1399 const_iv (AT_STATX_FORCE_SYNC)
1400 const_iv (AT_STATX_DONT_SYNC)
1401 const_iv (AT_RECURSIVE)
1402
1403 const_iv (OPEN_TREE_CLONE)
1404
1405 const_iv (FSOPEN_CLOEXEC)
1406
1407 const_iv (FSPICK_CLOEXEC)
1408 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1409 const_iv (FSPICK_NO_AUTOMOUNT)
1410 const_iv (FSPICK_EMPTY_PATH)
1411
1412 const_iv (MOVE_MOUNT_F_SYMLINKS)
1413 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1414 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1415 const_iv (MOVE_MOUNT_T_SYMLINKS)
1416 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1417 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1418
1419 /* waitid */
1420 const_iv (P_PID)
1421 const_iv (P_PIDFD)
1422 const_iv (P_PGID)
1423 const_iv (P_ALL)
1424
1425 const_iv (FSCONFIG_SET_FLAG)
1426 const_iv (FSCONFIG_SET_STRING)
1427 const_iv (FSCONFIG_SET_BINARY)
1428 const_iv (FSCONFIG_SET_PATH)
1429 const_iv (FSCONFIG_SET_PATH_EMPTY)
1430 const_iv (FSCONFIG_SET_FD)
1431 const_iv (FSCONFIG_CMD_CREATE)
1432 const_iv (FSCONFIG_CMD_RECONFIGURE)
1433
1434 const_iv (MOUNT_ATTR_RDONLY)
1435 const_iv (MOUNT_ATTR_NOSUID)
1436 const_iv (MOUNT_ATTR_NODEV)
1437 const_iv (MOUNT_ATTR_NOEXEC)
1438 const_iv (MOUNT_ATTR__ATIME)
1439 const_iv (MOUNT_ATTR_RELATIME)
1440 const_iv (MOUNT_ATTR_NOATIME)
1441 const_iv (MOUNT_ATTR_STRICTATIME)
1442 const_iv (MOUNT_ATTR_NODIRATIME)
1443
1444 /* sys/mount.h */
1445 const_iv (MS_RDONLY)
1446 const_iv (MS_NOSUID)
1447 const_iv (MS_NODEV)
1448 const_iv (MS_NOEXEC)
1449 const_iv (MS_SYNCHRONOUS)
1450 const_iv (MS_REMOUNT)
1451 const_iv (MS_MANDLOCK)
1452 const_iv (MS_DIRSYNC)
1453 const_iv (MS_NOATIME)
1454 const_iv (MS_NODIRATIME)
1455 const_iv (MS_BIND)
1456 const_iv (MS_MOVE)
1457 const_iv (MS_REC)
1458 const_iv (MS_SILENT)
1459 const_iv (MS_POSIXACL)
1460 const_iv (MS_UNBINDABLE)
1461 const_iv (MS_PRIVATE)
1462 const_iv (MS_SLAVE)
1463 const_iv (MS_SHARED)
1464 const_iv (MS_RELATIME)
1465 const_iv (MS_KERNMOUNT)
1466 const_iv (MS_I_VERSION)
1467 const_iv (MS_STRICTATIME)
1468 const_iv (MS_LAZYTIME)
1469 const_iv (MS_ACTIVE)
1470 const_iv (MS_NOUSER)
1471 const_iv (MS_RMT_MASK)
1472 const_iv (MS_MGC_VAL)
1473 const_iv (MS_MGC_MSK)
1474
1475 const_iv (MNT_FORCE)
1476 const_iv (MNT_DETACH)
1477 const_iv (MNT_EXPIRE)
1478 const_iv (UMOUNT_NOFOLLOW)
1479
1480 const_iv (BLKROSET)
1481 const_iv (BLKROGET)
1482 const_iv (BLKRRPART)
1483 const_iv (BLKGETSIZE)
1484 const_iv (BLKFLSBUF)
1485 const_iv (BLKRASET)
1486 const_iv (BLKRAGET)
1487 const_iv (BLKFRASET)
1488 const_iv (BLKFRAGET)
1489 const_iv (BLKSECTSET)
1490 const_iv (BLKSECTGET)
1491 const_iv (BLKSSZGET)
1492 const_iv (BLKBSZGET)
1493 const_iv (BLKBSZSET)
1494 const_iv (BLKGETSIZE64)
1495
1496 /* these are libeio constants, and are independent of gendef0 */
1497 const_eio (SEEK_SET)
1498 const_eio (SEEK_CUR)
1499 const_eio (SEEK_END)
1500
1501 const_eio (MCL_FUTURE)
1502 const_eio (MCL_CURRENT)
1503 const_eio (MCL_ONFAULT)
1504
1505 const_eio (MS_ASYNC)
1506 const_eio (MS_INVALIDATE)
1507 const_eio (MS_SYNC)
1508
1509 const_eio (MT_MODIFY)
1510
1511 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1512 const_eio (SYNC_FILE_RANGE_WRITE)
1513 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1514
1515 const_eio (FALLOC_FL_KEEP_SIZE)
1516 const_eio (FALLOC_FL_PUNCH_HOLE)
1517 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1518 const_eio (FALLOC_FL_ZERO_RANGE)
1519 const_eio (FALLOC_FL_INSERT_RANGE)
1520 const_eio (FALLOC_FL_UNSHARE_RANGE)
1521
1522 const_eio (RENAME_NOREPLACE)
1523 const_eio (RENAME_EXCHANGE)
1524 const_eio (RENAME_WHITEOUT)
1525
1526 const_eio (READDIR_DENTS)
1527 const_eio (READDIR_DIRS_FIRST)
1528 const_eio (READDIR_STAT_ORDER)
1529 const_eio (READDIR_FOUND_UNKNOWN)
1530
1531 const_eio (DT_UNKNOWN)
1532 const_eio (DT_FIFO)
1533 const_eio (DT_CHR)
1534 const_eio (DT_DIR)
1535 const_eio (DT_BLK)
1536 const_eio (DT_REG)
1537 const_eio (DT_LNK)
1538 const_eio (DT_SOCK)
1539 const_eio (DT_WHT)
1540 };
1541
1542 aio_stash = gv_stashpv ("IO::AIO" , 1);
1543 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1544 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1545 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1546
1547 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1548 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1549
1550 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1551
1552 /* allocate dummy pipe fd for aio_close */
563 { 1553 {
564 off_t sbytes; 1554 int pipefd [2];
565 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
566 1555
567 if (res < 0 && sbytes) 1556 if (
568 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ 1557#ifdef _WIN32
569 res = sbytes; 1558 _pipe (pipefd, 1, _O_BINARY) < 0
1559#else
1560 pipe (pipefd) < 0
1561 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1562#endif
1563 || close (pipefd [1]) < 0
1564 )
1565 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1566
1567 close_fd = pipefd [0];
570 } 1568 }
571 1569
572# elif __hpux 1570 reinit ();
573 res = sendfile (ofd, ifd, offset, count, 0, 0); 1571}
574 1572
575# elif __solaris 1573void
1574reinit ()
1575 PROTOTYPE:
1576
1577void
1578max_poll_reqs (unsigned int nreqs)
1579 PROTOTYPE: $
1580 CODE:
1581 eio_set_max_poll_reqs (nreqs);
1582
1583void
1584max_poll_time (double nseconds)
1585 PROTOTYPE: $
1586 CODE:
1587 eio_set_max_poll_time (nseconds);
1588
1589void
1590min_parallel (unsigned int nthreads)
1591 PROTOTYPE: $
1592 CODE:
1593 eio_set_min_parallel (nthreads);
1594
1595void
1596max_parallel (unsigned int nthreads)
1597 PROTOTYPE: $
1598 CODE:
1599 eio_set_max_parallel (nthreads);
1600
1601void
1602max_idle (unsigned int nthreads)
1603 PROTOTYPE: $
1604 CODE:
1605 eio_set_max_idle (nthreads);
1606
1607void
1608idle_timeout (unsigned int seconds)
1609 PROTOTYPE: $
1610 CODE:
1611 eio_set_idle_timeout (seconds);
1612
1613void
1614max_outstanding (unsigned int maxreqs)
1615 PROTOTYPE: $
1616 CODE:
1617 max_outstanding = maxreqs;
1618
1619void
1620aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1621 PPCODE:
1622{
1623 dREQ;
1624
1625 req->type = EIO_WD_OPEN;
1626 req_set_path1 (req, pathname);
1627
1628 REQ_SEND;
1629}
1630
1631void
1632aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1633 PPCODE:
1634{
1635 dREQ;
1636
1637 req->type = EIO_OPEN;
1638 req_set_path1 (req, pathname);
1639 req->int1 = flags;
1640 req->int2 = mode;
1641
1642 REQ_SEND;
1643}
1644
1645void
1646aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1647 ALIAS:
1648 aio_fsync = EIO_FSYNC
1649 aio_fdatasync = EIO_FDATASYNC
1650 aio_syncfs = EIO_SYNCFS
1651 PPCODE:
1652{
1653 int fd = s_fileno_croak (fh, 0);
1654 dREQ;
1655
1656 req->type = ix;
1657 req->sv1 = newSVsv (fh);
1658 req->int1 = fd;
1659
1660 REQ_SEND;
1661}
1662
1663void
1664aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1665 PPCODE:
1666{
1667 int fd = s_fileno_croak (fh, 0);
1668 dREQ;
1669
1670 req->type = EIO_SYNC_FILE_RANGE;
1671 req->sv1 = newSVsv (fh);
1672 req->int1 = fd;
1673 req->offs = offset;
1674 req->size = nbytes;
1675 req->int2 = flags;
1676
1677 REQ_SEND;
1678}
1679
1680void
1681aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1682 PPCODE:
1683{
1684 int fd = s_fileno_croak (fh, 0);
1685 dREQ;
1686
1687 req->type = EIO_FALLOCATE;
1688 req->sv1 = newSVsv (fh);
1689 req->int1 = fd;
1690 req->int2 = mode;
1691 req->offs = offset;
1692 req->size = len;
1693
1694 REQ_SEND;
1695}
1696
1697void
1698aio_close (SV *fh, SV *callback = &PL_sv_undef)
1699 PPCODE:
1700{
1701 int fd = s_fileno_croak (fh, 0);
1702 dREQ;
1703#if 0
1704 /* partially duplicate logic in s_fileno */
1705 SvGETMAGIC (fh);
1706
1707 if (SvROK (fh))
576 { 1708 {
577 struct sendfilevec vec; 1709 fh = SvRV (fh);
578 size_t sbytes; 1710 SvGETMAGIC (fh);
579
580 vec.sfv_fd = ifd;
581 vec.sfv_flag = 0;
582 vec.sfv_off = offset;
583 vec.sfv_len = count;
584
585 res = sendfilev (ofd, &vec, 1, &sbytes);
586
587 if (res < 0 && sbytes)
588 res = sbytes;
589 } 1711 }
590 1712
591# endif 1713 if (SvTYPE (fh) == SVt_PVGV)
592#else
593 res = -1;
594 errno = ENOSYS;
595#endif
596
597 if (res < 0
598 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
599#if __solaris
600 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
601#endif
602 )
603 )
604 {
605 /* emulate sendfile. this is a major pain in the ass */
606 char buf[4096];
607 res = 0;
608
609 while (count)
610 {
611 ssize_t cnt;
612
613 cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
614
615 if (cnt <= 0)
616 {
617 if (cnt && !res) res = -1;
618 break;
619 }
620
621 cnt = write (ofd, buf, cnt);
622
623 if (cnt <= 0)
624 {
625 if (cnt && !res) res = -1;
626 break;
627 }
628
629 offset += cnt;
630 res += cnt;
631 count -= cnt;
632 }
633 }
634
635 return res;
636}
637
638/* read a full directory */
639static int scandir_ (const char *path, void **namesp)
640{
641 DIR *dirp = opendir (path);
642 union
643 {
644 struct dirent d;
645 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
646 } u;
647 struct dirent *entp;
648 char *name, *names;
649 int memlen = 4096;
650 int memofs = 0;
651 int res = 0;
652 int errorno;
653
654 if (!dirp)
655 return -1;
656
657 names = malloc (memlen);
658
659 for (;;)
660 {
661 errno = 0, readdir_r (dirp, &u.d, &entp);
662
663 if (!entp)
664 break;
665
666 name = entp->d_name;
667
668 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
669 {
670 int len = strlen (name) + 1;
671
672 res++;
673
674 while (memofs + len > memlen)
675 {
676 memlen *= 2;
677 names = realloc (names, memlen);
678 if (!names)
679 break;
680 }
681
682 memcpy (names + memofs, name, len);
683 memofs += len;
684 }
685 }
686
687 errorno = errno;
688 closedir (dirp);
689
690 if (errorno)
691 {
692 free (names);
693 errno = errorno;
694 res = -1;
695 }
696
697 *namesp = (void *)names;
698 return res;
699}
700
701/*****************************************************************************/
702
703static void *aio_proc (void *thr_arg)
704{
705 aio_req req;
706 int type;
707
708 do
709 {
710 pthread_mutex_lock (&reqlock);
711
712 for (;;)
713 {
714 req = reqs;
715
716 if (reqs)
717 {
718 reqs = reqs->next;
719 if (!reqs) reqe = 0;
720 }
721
722 if (req)
723 break;
724
725 pthread_cond_wait (&reqwait, &reqlock);
726 }
727
728 pthread_mutex_unlock (&reqlock);
729
730 errno = 0; /* strictly unnecessary */
731
732 if (!req->cancelled)
733 switch (req->type)
734 { 1714 {
735 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 1715 /* perl filehandle */
736 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 1716 PerlIOUnix_refcnt_inc (fd);
1717 do_close ((GV *)fh, 1);
737 1718
738 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 1719 req->type = EIO_CLOSE;
739 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; 1720 req->int1 = fd;
740 1721 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
741 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
742 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
743 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
744
745 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
746 case REQ_CLOSE: req->result = close (req->fd); break;
747 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
748 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
749 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
750 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
751 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
752
753 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
754 case REQ_FSYNC: req->result = fsync (req->fd); break;
755 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
756
757 case REQ_SLEEP:
758 {
759 struct timeval tv;
760
761 tv.tv_sec = req->fd;
762 tv.tv_usec = req->fd2;
763
764 req->result = select (0, 0, 0, 0, &tv);
765 }
766
767 case REQ_QUIT:
768 break;
769
770 default:
771 req->result = ENOSYS;
772 break;
773 } 1722 }
774
775 req->errorno = errno;
776
777 pthread_mutex_lock (&reslock);
778
779 req->next = 0;
780
781 if (rese)
782 {
783 rese->next = req;
784 rese = req;
785 }
786 else 1723 else
1724#endif
787 { 1725 {
788 rese = ress = req; 1726 /* fd number */
789 1727 req->type = EIO_DUP2;
790 /* write a dummy byte to the pipe so fh becomes ready */ 1728 req->int1 = close_fd;
791 write (respipe [1], &respipe, 1); 1729 req->sv2 = newSVsv (fh);
1730 req->int2 = fd;
792 } 1731 }
793 1732
794 pthread_mutex_unlock (&reslock); 1733 REQ_SEND;
795 }
796 while (type != REQ_QUIT);
797
798 return 0;
799} 1734}
800 1735
801/*****************************************************************************/
802
803static void atfork_prepare (void)
804{
805 pthread_mutex_lock (&reqlock);
806 pthread_mutex_lock (&reslock);
807#if !HAVE_PREADWRITE
808 pthread_mutex_lock (&preadwritelock);
809#endif
810#if !HAVE_READDIR_R
811 pthread_mutex_lock (&readdirlock);
812#endif
813}
814
815static void atfork_parent (void)
816{
817#if !HAVE_READDIR_R
818 pthread_mutex_unlock (&readdirlock);
819#endif
820#if !HAVE_PREADWRITE
821 pthread_mutex_unlock (&preadwritelock);
822#endif
823 pthread_mutex_unlock (&reslock);
824 pthread_mutex_unlock (&reqlock);
825}
826
827static void atfork_child (void)
828{
829 aio_req prv;
830
831 started = 0;
832
833 while (reqs)
834 {
835 prv = reqs;
836 reqs = prv->next;
837 req_free (prv);
838 }
839
840 reqs = reqe = 0;
841
842 while (ress)
843 {
844 prv = ress;
845 ress = prv->next;
846 req_free (prv);
847 }
848
849 ress = rese = 0;
850
851 close (respipe [0]);
852 close (respipe [1]);
853 create_pipe ();
854
855 atfork_parent ();
856}
857
858#define dREQ \
859 aio_req req; \
860 \
861 if (SvOK (callback) && !SvROK (callback)) \
862 croak ("callback must be undef or of reference type"); \
863 \
864 Newz (0, req, 1, aio_cb); \
865 if (!req) \
866 croak ("out of memory during aio_req allocation"); \
867 \
868 req->callback = newSVsv (callback)
869
870#define REQ_SEND \
871 req_send (req); \
872 \
873 if (GIMME_V != G_VOID) \
874 XPUSHs (req_sv (req, AIO_REQ_KLASS));
875
876MODULE = IO::AIO PACKAGE = IO::AIO
877
878PROTOTYPES: ENABLE
879
880BOOT:
881{
882 HV *stash = gv_stashpv ("IO::AIO", 1);
883 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
884 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
885 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
886
887 create_pipe ();
888 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
889}
890
891void 1736void
892min_parallel (nthreads) 1737aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
893 int nthreads
894 PROTOTYPE: $
895
896void
897max_parallel (nthreads)
898 int nthreads
899 PROTOTYPE: $
900
901int
902max_outstanding (nreqs)
903 int nreqs
904 PROTOTYPE: $
905 CODE: 1738 PPCODE:
906 RETVAL = max_outstanding;
907 max_outstanding = nreqs;
908
909void
910aio_open (pathname,flags,mode,callback=&PL_sv_undef)
911 SV * pathname
912 int flags
913 int mode
914 SV * callback
915 PROTOTYPE: $$$;$
916 PPCODE:
917{ 1739{
1740 int fd = s_fileno_croak (fh, 0);
918 dREQ; 1741 dREQ;
919 1742
920 req->type = REQ_OPEN; 1743 req->type = EIO_SEEK;
921 req->data = newSVsv (pathname); 1744 req->sv1 = newSVsv (fh);
922 req->dataptr = SvPVbyte_nolen (req->data); 1745 req->int1 = fd;
923 req->fd = flags; 1746 req->offs = SvVAL64 (offset);
924 req->mode = mode; 1747 req->int2 = whence;
925 1748
926 REQ_SEND; 1749 REQ_SEND;
927} 1750}
928 1751
929void 1752void
930aio_close (fh,callback=&PL_sv_undef) 1753aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
931 SV * fh
932 SV * callback
933 PROTOTYPE: $;$
934 ALIAS: 1754 ALIAS:
935 aio_close = REQ_CLOSE
936 aio_fsync = REQ_FSYNC
937 aio_fdatasync = REQ_FDATASYNC
938 PPCODE:
939{
940 dREQ;
941
942 req->type = ix;
943 req->fh = newSVsv (fh);
944 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
945
946 REQ_SEND (req);
947}
948
949void
950aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
951 SV * fh
952 UV offset
953 UV length
954 SV * data
955 UV dataoffset
956 SV * callback
957 ALIAS:
958 aio_read = REQ_READ 1755 aio_read = EIO_READ
959 aio_write = REQ_WRITE 1756 aio_write = EIO_WRITE
960 PROTOTYPE: $$$$$;$
961 PPCODE: 1757 PPCODE:
962{ 1758{
963 aio_req req;
964 STRLEN svlen; 1759 STRLEN svlen;
1760 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
965 char *svptr = SvPVbyte (data, svlen); 1761 char *svptr = SvPVbyte (data, svlen);
966 1762 UV len = SvUV (length);
967 SvUPGRADE (data, SVt_PV);
968 SvPOK_on (data);
969 1763
970 if (dataoffset < 0) 1764 if (dataoffset < 0)
971 dataoffset += svlen; 1765 dataoffset += svlen;
972 1766
973 if (dataoffset < 0 || dataoffset > svlen) 1767 if (dataoffset < 0 || dataoffset > svlen)
974 croak ("data offset outside of string"); 1768 croak ("dataoffset outside of data scalar");
975 1769
976 if (ix == REQ_WRITE) 1770 if (ix == EIO_WRITE)
977 { 1771 {
978 /* write: check length and adjust. */ 1772 /* write: check length and adjust. */
979 if (length < 0 || length + dataoffset > svlen) 1773 if (!SvOK (length) || len + dataoffset > svlen)
980 length = svlen - dataoffset; 1774 len = svlen - dataoffset;
981 } 1775 }
982 else 1776 else
983 { 1777 {
984 /* read: grow scalar as necessary */ 1778 /* read: check type and grow scalar as necessary */
1779 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
985 svptr = SvGROW (data, length + dataoffset); 1780 svptr = sv_grow (data, len + dataoffset + 1);
1781 else if (SvCUR (data) < len + dataoffset)
1782 croak ("length + dataoffset outside of scalar, and cannot grow");
986 } 1783 }
987
988 if (length < 0)
989 croak ("length must not be negative");
990 1784
991 { 1785 {
992 dREQ; 1786 dREQ;
993 1787
994 req->type = ix; 1788 req->type = ix;
995 req->fh = newSVsv (fh); 1789 req->sv1 = newSVsv (fh);
996 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1790 req->int1 = fd;
997 : IoOFP (sv_2io (fh))); 1791 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
998 req->offset = offset; 1792 req->size = len;
999 req->length = length;
1000 req->data = SvREFCNT_inc (data); 1793 req->sv2 = SvREFCNT_inc (data);
1001 req->dataptr = (char *)svptr + dataoffset; 1794 req->ptr2 = (char *)svptr + dataoffset;
1795 req->stroffset = dataoffset;
1002 1796
1003 if (!SvREADONLY (data)) 1797 if (!SvREADONLY (data))
1004 { 1798 {
1005 SvREADONLY_on (data); 1799 SvREADONLY_on (data);
1006 req->data2ptr = (void *)data; 1800 req->flags |= FLAG_SV2_RO_OFF;
1007 } 1801 }
1008 1802
1009 REQ_SEND; 1803 REQ_SEND;
1010 } 1804 }
1011} 1805}
1012 1806
1013void 1807void
1014aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1808aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1015 SV * out_fh 1809 ALIAS:
1016 SV * in_fh 1810 aio_ioctl = EIO_IOCTL
1017 UV in_offset 1811 aio_fcntl = EIO_FCNTL
1018 UV length
1019 SV * callback
1020 PROTOTYPE: $$$$;$
1021 PPCODE: 1812 PPCODE:
1022{ 1813{
1023 dREQ; 1814 int fd = s_fileno_croak (fh, 0);
1815 char *svptr;
1024 1816
1025 req->type = REQ_SENDFILE; 1817 if (SvPOK (arg) || !SvNIOK (arg))
1026 req->fh = newSVsv (out_fh);
1027 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1028 req->fh2 = newSVsv (in_fh);
1029 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1030 req->offset = in_offset;
1031 req->length = length;
1032
1033 REQ_SEND;
1034}
1035
1036void
1037aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1038 SV * fh
1039 UV offset
1040 IV length
1041 SV * callback
1042 PROTOTYPE: $$$;$
1043 PPCODE:
1044{
1045 dREQ;
1046
1047 req->type = REQ_READAHEAD;
1048 req->fh = newSVsv (fh);
1049 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1050 req->offset = offset;
1051 req->length = length;
1052
1053 REQ_SEND;
1054}
1055
1056void
1057aio_stat (fh_or_path,callback=&PL_sv_undef)
1058 SV * fh_or_path
1059 SV * callback
1060 ALIAS:
1061 aio_stat = REQ_STAT
1062 aio_lstat = REQ_LSTAT
1063 PPCODE:
1064{
1065 dREQ;
1066
1067 New (0, req->statdata, 1, Stat_t);
1068 if (!req->statdata)
1069 { 1818 {
1070 req_free (req); 1819 STRLEN svlen;
1071 croak ("out of memory during aio_req->statdata allocation"); 1820 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1072 } 1821#ifdef IOCPARM_LEN
1822 STRLEN need = IOCPARM_LEN (request);
1823#else
1824 STRLEN need = 256;
1825#endif
1073 1826
1074 if (SvPOK (fh_or_path)) 1827 if (svlen < need)
1075 { 1828 svptr = SvGROW (arg, need);
1076 req->type = ix;
1077 req->data = newSVsv (fh_or_path);
1078 req->dataptr = SvPVbyte_nolen (req->data);
1079 } 1829 }
1080 else 1830 else
1831 svptr = (char *)SvIV (arg);
1832
1081 { 1833 {
1834 dREQ;
1835
1082 req->type = REQ_FSTAT; 1836 req->type = ix;
1083 req->fh = newSVsv (fh_or_path); 1837 req->sv1 = newSVsv (fh);
1084 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1838 req->int1 = fd;
1839 req->int2 = (long)request;
1840 req->sv2 = SvREFCNT_inc (arg);
1841 req->ptr2 = svptr;
1842
1843 REQ_SEND;
1085 } 1844 }
1845}
1846
1847void
1848aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1849 ALIAS:
1850 aio_readlink = EIO_READLINK
1851 aio_realpath = EIO_REALPATH
1852 PPCODE:
1853{
1854 dREQ;
1855
1856 req->type = ix;
1857 req_set_path1 (req, pathname);
1086 1858
1087 REQ_SEND; 1859 REQ_SEND;
1088} 1860}
1089 1861
1090void 1862void
1091aio_unlink (pathname,callback=&PL_sv_undef) 1863aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1092 SV * pathname 1864 PPCODE:
1093 SV * callback 1865{
1866 int ifd = s_fileno_croak (in_fh , 0);
1867 int ofd = s_fileno_croak (out_fh, 1);
1868 dREQ;
1869
1870 req->type = EIO_SENDFILE;
1871 req->sv1 = newSVsv (out_fh);
1872 req->int1 = ofd;
1873 req->sv2 = newSVsv (in_fh);
1874 req->int2 = ifd;
1875 req->offs = in_offset;
1876 req->size = length;
1877
1878 REQ_SEND;
1879}
1880
1881void
1882aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1883 PPCODE:
1884{
1885 int fd = s_fileno_croak (fh, 0);
1886 dREQ;
1887
1888 req->type = EIO_READAHEAD;
1889 req->sv1 = newSVsv (fh);
1890 req->int1 = fd;
1891 req->offs = offset;
1892 req->size = length;
1893
1894 REQ_SEND;
1895}
1896
1897void
1898aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1094 ALIAS: 1899 ALIAS:
1900 aio_stat = EIO_STAT
1901 aio_lstat = EIO_LSTAT
1902 aio_statvfs = EIO_STATVFS
1903 PPCODE:
1904{
1905 dREQ;
1906
1907 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1908
1909 REQ_SEND;
1910}
1911
1912void
1913st_xtime ()
1914 ALIAS:
1915 st_atime = 0x01
1916 st_mtime = 0x02
1917 st_ctime = 0x04
1918 st_btime = 0x08
1919 st_xtime = 0x0f
1920 PPCODE:
1921 EXTEND (SP, 4);
1922 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1923 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1924 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1925 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1926
1927void
1928st_xtimensec ()
1929 ALIAS:
1930 st_atimensec = 0x01
1931 st_mtimensec = 0x02
1932 st_ctimensec = 0x04
1933 st_btimensec = 0x08
1934 st_xtimensec = 0x0f
1935 st_btimesec = 0x10
1936 st_gen = 0x20
1937 PPCODE:
1938 EXTEND (SP, 4);
1939 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1940 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1941 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1942 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1943 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1944 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1945
1946UV
1947major (UV dev)
1948 ALIAS:
1949 minor = 1
1950 CODE:
1951 RETVAL = ix ? minor (dev) : major (dev);
1952 OUTPUT:
1953 RETVAL
1954
1955UV
1956makedev (UV maj, UV min)
1957 CODE:
1958 RETVAL = makedev (maj, min);
1959 OUTPUT:
1960 RETVAL
1961
1962void
1963aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1964 PPCODE:
1965{
1966 dREQ;
1967
1968 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1969 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1970 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1971
1972 REQ_SEND;
1973}
1974
1975void
1976aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1977 PPCODE:
1978{
1979 dREQ;
1980
1981 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1982 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1983
1984 REQ_SEND;
1985}
1986
1987void
1988aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1989 PPCODE:
1990{
1991 dREQ;
1992
1993 req->int2 = mode;
1994 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1995
1996 REQ_SEND;
1997}
1998
1999void
2000aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
2001 PPCODE:
2002{
2003 dREQ;
2004
2005 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
2006 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
2007 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
2008
2009 REQ_SEND;
2010}
2011
2012void
2013aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
2014 PPCODE:
2015{
2016 dREQ;
2017
2018 req->type = EIO_READDIR;
2019 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
2020
2021 if (flags & EIO_READDIR_DENTS)
2022 req->int1 |= EIO_READDIR_CUSTOM2;
2023
2024 req_set_path1 (req, pathname);
2025
2026 REQ_SEND;
2027}
2028
2029void
2030aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
2031 PPCODE:
2032{
2033 dREQ;
2034
2035 req->type = EIO_MKDIR;
2036 req->int2 = mode;
2037 req_set_path1 (req, pathname);
2038
2039 REQ_SEND;
2040}
2041
2042void
2043aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
2044 ALIAS:
1095 aio_unlink = REQ_UNLINK 2045 aio_unlink = EIO_UNLINK
1096 aio_rmdir = REQ_RMDIR 2046 aio_rmdir = EIO_RMDIR
1097 aio_readdir = REQ_READDIR 2047 aio_readdir = EIO_READDIR
1098 PPCODE: 2048 PPCODE:
1099{ 2049{
1100 dREQ; 2050 dREQ;
1101 2051
1102 req->type = ix; 2052 req->type = ix;
1103 req->data = newSVsv (pathname); 2053 req_set_path1 (req, pathname);
1104 req->dataptr = SvPVbyte_nolen (req->data); 2054
1105
1106 REQ_SEND; 2055 REQ_SEND;
1107} 2056}
1108 2057
1109void 2058void
1110aio_link (oldpath,newpath,callback=&PL_sv_undef) 2059aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1111 SV * oldpath
1112 SV * newpath
1113 SV * callback
1114 ALIAS: 2060 ALIAS:
1115 aio_link = REQ_LINK 2061 aio_link = EIO_LINK
1116 aio_symlink = REQ_SYMLINK 2062 aio_symlink = EIO_SYMLINK
1117 aio_rename = REQ_RENAME 2063 aio_rename = EIO_RENAME
1118 PPCODE: 2064 PPCODE:
1119{ 2065{
2066 eio_wd wd2 = 0;
1120 dREQ; 2067 dREQ;
1121 2068
1122 req->type = ix; 2069 req->type = ix;
1123 req->fh = newSVsv (oldpath); 2070 req_set_path1 (req, oldpath);
1124 req->data2ptr = SvPVbyte_nolen (req->fh); 2071 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1125 req->data = newSVsv (newpath); 2072 req->int3 = (long)wd2;
1126 req->dataptr = SvPVbyte_nolen (req->data);
1127 2073
1128 REQ_SEND; 2074 REQ_SEND;
1129} 2075}
1130 2076
1131void 2077void
1132aio_sleep (delay,callback=&PL_sv_undef) 2078aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1133 double delay
1134 SV * callback
1135 PPCODE: 2079 PPCODE:
1136{ 2080{
2081 eio_wd wd2 = 0;
1137 dREQ; 2082 dREQ;
1138 2083
1139 req->type = REQ_SLEEP; 2084 req->type = EIO_RENAME;
1140 req->fd = delay < 0. ? 0 : delay; 2085 req_set_path1 (req, oldpath);
1141 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 2086 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1142 2087 req->int2 = flags;
2088 req->int3 = (long)wd2;
2089
1143 REQ_SEND; 2090 REQ_SEND;
1144} 2091}
1145 2092
1146void 2093void
1147aio_group (callback=&PL_sv_undef) 2094aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1148 SV * callback 2095 PPCODE:
1149 PROTOTYPE: ;$ 2096{
2097 dREQ;
2098
2099 req->type = EIO_MKNOD;
2100 req->int2 = (mode_t)mode;
2101 req->offs = dev;
2102 req_set_path1 (req, pathname);
2103
2104 REQ_SEND;
2105}
2106
2107void
2108aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
2109 ALIAS:
2110 aio_mtouch = EIO_MTOUCH
2111 aio_msync = EIO_MSYNC
1150 PPCODE: 2112 PPCODE:
1151{ 2113{
2114 STRLEN svlen;
2115 char *svptr = SvPVbyte (data, svlen);
2116 UV len = SvUV (length);
2117
2118 if (flags < 0)
2119 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
2120
2121 if (offset < 0)
2122 offset += svlen;
2123
2124 if (offset < 0 || offset > svlen)
2125 croak ("offset outside of scalar");
2126
2127 if (!SvOK (length) || len + offset > svlen)
2128 len = svlen - offset;
2129
2130 {
2131 dREQ;
2132
2133 req->type = ix;
2134 req->sv2 = SvREFCNT_inc (data);
2135 req->ptr2 = (char *)svptr + offset;
2136 req->size = len;
2137 req->int1 = flags;
2138
2139 REQ_SEND;
2140 }
2141}
2142
2143void
2144aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2145 PPCODE:
2146{
2147 STRLEN svlen;
2148 char *svptr = SvPVbyte (data, svlen);
2149 UV len = SvUV (length);
2150
2151 if (offset < 0)
2152 offset += svlen;
2153
2154 if (offset < 0 || offset > svlen)
2155 croak ("offset outside of scalar");
2156
2157 if (!SvOK (length) || len + offset > svlen)
2158 len = svlen - offset;
2159
2160 {
2161 dREQ;
2162
2163 req->type = EIO_MLOCK;
2164 req->sv2 = SvREFCNT_inc (data);
2165 req->ptr2 = (char *)svptr + offset;
2166 req->size = len;
2167
2168 REQ_SEND;
2169 }
2170}
2171
2172void
2173aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2174 PPCODE:
2175{
2176 dREQ;
2177
2178 req->type = EIO_MLOCKALL;
2179 req->int1 = flags;
2180
2181 REQ_SEND;
2182}
2183
2184void
2185aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2186 PPCODE:
2187{
2188 int fd = s_fileno_croak (fh, 0);
1152 dREQ; 2189 dREQ;
2190
2191 req->type = EIO_CUSTOM;
2192 req->sv1 = newSVsv (fh);
2193 req->int1 = fd;
2194
2195 req->feed = fiemap;
2196#if HAVE_FIEMAP
2197 /* keep our fingers crossed that the next two types are 64 bit */
2198 req->offs = start;
2199 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2200 req->int2 = flags;
2201 req->int3 = SvOK (count) ? SvIV (count) : -1;
2202#endif
2203
2204 REQ_SEND;
2205}
2206
2207void
2208aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
2209 PPCODE:
2210{
2211 char *svptr = 0;
2212
2213 sv_clear_foreign (data);
2214
2215 if (length) /* known length, directly read into scalar */
2216 {
2217 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2218 svptr = sv_grow (data, length + 1);
2219 else if (SvCUR (data) < length)
2220 croak ("length outside of scalar, and cannot grow");
2221 else
2222 svptr = SvPVbyte_nolen (data);
2223 }
2224
2225 {
2226 dREQ;
2227
2228 req->type = EIO_SLURP;
2229 req_set_path1 (req, pathname);
2230 req->offs = offset;
2231 req->size = length;
2232 req->sv2 = SvREFCNT_inc (data);
2233 req->ptr2 = svptr;
2234
2235 if (!SvREADONLY (data))
2236 {
2237 SvREADONLY_on (data);
2238 req->flags |= FLAG_SV2_RO_OFF;
2239 }
2240
2241 REQ_SEND;
2242 }
2243}
2244
2245void
2246aio_busy (double delay, SV *callback = &PL_sv_undef)
2247 PPCODE:
2248{
2249 dREQ;
2250
2251 req->type = EIO_BUSY;
2252 req->nv1 = delay < 0. ? 0. : delay;
2253
2254 REQ_SEND;
2255}
2256
2257void
2258aio_group (SV *callback = &PL_sv_undef)
2259 PPCODE:
2260{
2261 dREQ;
2262
1153 req->type = REQ_GROUP; 2263 req->type = EIO_GROUP;
1154 req->grp_next = req;
1155 req->grp_prev = req;
1156 2264
2265 PUTBACK;
1157 req_send (req); 2266 req_submit (req);
2267 SPAGAIN;
2268
1158 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2269 XPUSHs (req_sv (req, aio_grp_stash));
1159} 2270}
2271
2272void
2273aio_nop (SV *callback = &PL_sv_undef)
2274 ALIAS:
2275 aio_nop = EIO_NOP
2276 aio_sync = EIO_SYNC
2277 PPCODE:
2278{
2279 dREQ;
2280
2281 req->type = ix;
2282
2283 REQ_SEND;
2284}
2285
2286int
2287aioreq_pri (int pri = NO_INIT)
2288 CODE:
2289 RETVAL = next_pri;
2290 if (items > 0)
2291 {
2292 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
2293 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
2294 next_pri = pri;
2295 }
2296 OUTPUT:
2297 RETVAL
2298
2299void
2300aioreq_nice (int nice = 0)
2301 CODE:
2302 nice = next_pri - nice;
2303 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
2304 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
2305 next_pri = nice;
1160 2306
1161void 2307void
1162flush () 2308flush ()
1163 PROTOTYPE:
1164 CODE: 2309 CODE:
1165 while (nreqs) 2310 while (eio_nreqs ())
1166 { 2311 {
1167 poll_wait (); 2312 poll_wait ();
1168 poll_cb (); 2313 poll_cb ();
1169 } 2314 }
1170 2315
1171void 2316int
1172poll() 2317poll ()
1173 PROTOTYPE:
1174 CODE: 2318 CODE:
1175 if (nreqs)
1176 {
1177 poll_wait (); 2319 poll_wait ();
1178 poll_cb (); 2320 RETVAL = poll_cb ();
1179 }
1180
1181int
1182poll_fileno()
1183 PROTOTYPE:
1184 CODE:
1185 RETVAL = respipe [0];
1186 OUTPUT: 2321 OUTPUT:
1187 RETVAL 2322 RETVAL
1188 2323
1189int 2324int
2325poll_fileno ()
2326 CODE:
2327 RETVAL = s_epipe_fd (&respipe);
2328 OUTPUT:
2329 RETVAL
2330
2331int
1190poll_cb(...) 2332poll_cb (...)
1191 PROTOTYPE: 2333 PROTOTYPE:
1192 CODE: 2334 CODE:
1193 RETVAL = poll_cb (); 2335 RETVAL = poll_cb ();
1194 OUTPUT: 2336 OUTPUT:
1195 RETVAL 2337 RETVAL
1196 2338
1197void 2339void
1198poll_wait() 2340poll_wait ()
2341 CODE:
2342 poll_wait ();
2343
2344int
2345nreqs ()
2346 CODE:
2347 RETVAL = eio_nreqs ();
2348 OUTPUT:
2349 RETVAL
2350
2351int
2352nready ()
2353 CODE:
2354 RETVAL = eio_nready ();
2355 OUTPUT:
2356 RETVAL
2357
2358int
2359npending ()
2360 CODE:
2361 RETVAL = eio_npending ();
2362 OUTPUT:
2363 RETVAL
2364
2365int
2366nthreads ()
2367 CODE:
2368 RETVAL = eio_nthreads ();
2369 OUTPUT:
2370 RETVAL
2371
2372int
2373fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2374 CODE:
2375 RETVAL = posix_fadvise (fh, offset, length, advice);
2376 OUTPUT:
2377 RETVAL
2378
2379IV
2380sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2381 CODE:
2382 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2383 OUTPUT:
2384 RETVAL
2385
2386void
2387mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2388 PPCODE:
2389 sv_clear_foreign (scalar);
2390{
2391 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2392 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2393 if (addr == (void *)-1)
2394 XSRETURN_NO;
2395
2396 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2397
2398 if (!(prot & PROT_WRITE))
2399 SvREADONLY_on (scalar);
2400
2401 XSRETURN_YES;
2402}
2403
2404void
2405munmap (SV *scalar)
2406 CODE:
2407 sv_clear_foreign (scalar);
2408
2409SV *
2410mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2411 CODE:
2412{
2413 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2414 void *new;
2415
2416 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2417 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2418
2419 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2420
2421 RETVAL = &PL_sv_no;
2422
2423 if (new != (void *)-1)
2424 {
2425 RETVAL = new == (void *)mg->mg_ptr
2426 ? newSVpvn ("0 but true", 10)
2427 : &PL_sv_yes;
2428
2429 mg->mg_ptr = (char *)new;
2430 mg->mg_obj = (SV *)new_length;
2431
2432 SvPVX (scalar) = mg->mg_ptr;
2433 SvCUR_set (scalar, new_length);
2434 }
2435}
2436 OUTPUT:
2437 RETVAL
2438
2439int
2440madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2441 ALIAS:
2442 mprotect = 1
2443 CODE:
2444{
2445 STRLEN svlen;
2446 void *addr = SvPVbyte (scalar, svlen);
2447 STRLEN len = SvUV (length);
2448
2449 if (offset < 0)
2450 offset += svlen;
2451
2452 if (offset < 0 || offset > svlen)
2453 croak ("offset outside of scalar");
2454
2455 if (!SvOK (length) || len + offset > svlen)
2456 len = svlen - offset;
2457
2458 addr = (void *)(((intptr_t)addr) + offset);
2459 eio_page_align (&addr, &len);
2460
2461 switch (ix)
2462 {
2463 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2464 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2465 }
2466}
2467 OUTPUT:
2468 RETVAL
2469
2470int
2471munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2472 CODE:
2473{
2474 STRLEN svlen;
2475 void *addr = SvPVbyte (scalar, svlen);
2476 size_t len = SvUV (length);
2477
2478 if (offset < 0)
2479 offset += svlen;
2480
2481 if (offset < 0 || offset > svlen)
2482 croak ("offset outside of scalar");
2483
2484 if (!SvOK (length) || len + offset > svlen)
2485 len = svlen - offset;
2486
2487 addr = (void *)(((intptr_t)addr) + offset);
2488 eio_page_align (&addr, &len);
2489#if _POSIX_MEMLOCK_RANGE
2490 RETVAL = munlock (addr, len);
2491#else
2492 RETVAL = EIO_ENOSYS ();
2493#endif
2494}
2495 OUTPUT:
2496 RETVAL
2497
2498int
2499mlockall (int flags)
2500 PROTOTYPE: $;
2501 CODE:
2502 RETVAL = eio_mlockall_sync (flags);
2503 OUTPUT:
2504 RETVAL
2505
2506int
2507munlockall ()
2508 CODE:
2509#if _POSIX_MEMLOCK
2510 munlockall ();
2511#else
2512 RETVAL = EIO_ENOSYS ();
2513#endif
2514 OUTPUT:
2515 RETVAL
2516
2517int
2518statx (SV8 *pathname, int flags, UV mask)
2519 CODE:
2520{
2521 /* undocumented, and might go away, and anyway, should use eio_statx */
2522 SV *wdsv = 0;
2523 SV *pathsv = 0;
2524 eio_wd wd = EIO_CWD;
2525 void *ptr;
2526 int res;
2527
2528 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2529 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2530
2531 SvREFCNT_dec (pathsv);
2532 SvREFCNT_dec (wdsv);
2533}
2534 OUTPUT:
2535 RETVAL
2536
2537U32
2538stx_mode ()
1199 PROTOTYPE: 2539 PROTOTYPE:
1200 CODE: 2540 CODE:
2541#if HAVE_STATX
2542 RETVAL = stx.stx_mode;
2543#else
2544 XSRETURN_UNDEF;
2545#endif
2546 OUTPUT:
2547 RETVAL
2548
2549#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2550#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2551#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2552#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2553#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2554#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2555#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2556#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2557#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2558#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2559#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2560#define STATX_OFFSET_size statx_offsetof (stx_size)
2561#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2562#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2563#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2564#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2565#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2566#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2567
2568U32
2569stx_mask ()
2570 PROTOTYPE:
2571 ALIAS:
2572 stx_mask = STATX_OFFSET_mask
2573 stx_blksize = STATX_OFFSET_blksize
2574 stx_nlink = STATX_OFFSET_nlink
2575 stx_uid = STATX_OFFSET_uid
2576 stx_gid = STATX_OFFSET_gid
2577 stx_rdev_major = STATX_OFFSET_rdev_major
2578 stx_rdev_minor = STATX_OFFSET_rdev_minor
2579 stx_dev_major = STATX_OFFSET_dev_major
2580 stx_dev_minor = STATX_OFFSET_dev_minor
2581 CODE:
2582#if HAVE_STATX
2583 RETVAL = *(__u32 *)((char *)&stx + ix);
2584#else
2585 XSRETURN_UNDEF;
2586#endif
2587 OUTPUT:
2588 RETVAL
2589
2590VAL64
2591stx_attributes ()
2592 PROTOTYPE:
2593 ALIAS:
2594 stx_attributes = STATX_OFFSET_attributes
2595 stx_ino = STATX_OFFSET_ino
2596 stx_size = STATX_OFFSET_size
2597 stx_blocks = STATX_OFFSET_blocks
2598 stx_attributes_mask = STATX_OFFSET_attributes_mask
2599 CODE:
2600#if HAVE_STATX
2601 RETVAL = *(__u64 *)((char *)&stx + ix);
2602#else
2603 XSRETURN_UNDEF;
2604#endif
2605 OUTPUT:
2606 RETVAL
2607
2608NV
2609stx_atime ()
2610 PROTOTYPE:
2611 ALIAS:
2612 stx_atime = STATX_OFFSET_atime
2613 stx_btime = STATX_OFFSET_btime
2614 stx_ctime = STATX_OFFSET_ctime
2615 stx_mtime = STATX_OFFSET_mtime
2616 CODE:
2617#if HAVE_STATX
2618 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2619 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2620#else
2621 XSRETURN_UNDEF;
2622#endif
2623 OUTPUT:
2624 RETVAL
2625
2626VAL64
2627stx_atimesec ()
2628 PROTOTYPE:
2629 ALIAS:
2630 stx_atimesec = STATX_OFFSET_atime
2631 stx_btimesec = STATX_OFFSET_btime
2632 stx_ctimesec = STATX_OFFSET_ctime
2633 stx_mtimesec = STATX_OFFSET_mtime
2634 CODE:
2635#if HAVE_STATX
2636 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2637 RETVAL = ts->tv_sec;
2638#else
2639 XSRETURN_UNDEF;
2640#endif
2641 OUTPUT:
2642 RETVAL
2643
2644U32
2645stx_atimensec ()
2646 PROTOTYPE:
2647 ALIAS:
2648 stx_atimensec = STATX_OFFSET_atime
2649 stx_btimensec = STATX_OFFSET_btime
2650 stx_ctimensec = STATX_OFFSET_ctime
2651 stx_mtimensec = STATX_OFFSET_mtime
2652 CODE:
2653#if HAVE_STATX
2654 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2655 RETVAL = ts->tv_nsec;
2656#else
2657 RETVAL = 0;
2658#endif
2659 OUTPUT:
2660 RETVAL
2661
2662void
2663accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2664 PPCODE:
2665{
2666 SV *retval;
2667#if HAVE_ACCEPT4
2668 socklen_t salen_ = salen ? salen + 1 : 0;
2669
1201 if (nreqs) 2670 if (salen)
1202 poll_wait (); 2671 {
2672 sv_upgrade (sockaddr, SVt_PV);
2673 sv_grow (sockaddr, salen_);
2674 }
2675
2676 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2677
2678 retval = newmortalFH (res, O_RDWR);
2679
2680 if (res >= 0 && salen > 0)
2681 {
2682 if (salen_ > salen + 1)
2683 salen_ = salen + 1;
2684
2685 SvPOK_only (sockaddr);
2686 SvCUR_set (sockaddr, salen_);
2687 }
2688#else
2689 errno = ENOSYS;
2690 retval = &PL_sv_undef;
2691#endif
2692 XPUSHs (retval);
2693}
2694
2695ssize_t
2696splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2697 CODE:
2698{
2699#if HAVE_LINUX_SPLICE
2700 loff_t off_in_, off_out_;
2701 RETVAL = splice (
2702 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2703 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2704 length, flags
2705 );
2706#else
2707 RETVAL = EIO_ENOSYS ();
2708#endif
2709}
2710 OUTPUT:
2711 RETVAL
2712
2713ssize_t
2714tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2715 CODE:
2716#if HAVE_LINUX_SPLICE
2717 RETVAL = tee (rfh, wfh, length, flags);
2718#else
2719 RETVAL = EIO_ENOSYS ();
2720#endif
2721 OUTPUT:
2722 RETVAL
1203 2723
1204int 2724int
1205nreqs() 2725pipesize (aio_rfd rfh, int new_size = -1)
2726 PROTOTYPE: $;$
2727 CODE:
2728#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2729 if (new_size >= 0)
2730 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2731 else
2732 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2733#else
2734 errno = ENOSYS;
2735 RETVAL = -1;
2736#endif
2737 OUTPUT:
2738 RETVAL
2739
2740void
2741pipe2 (int flags = 0)
1206 PROTOTYPE: 2742 PROTOTYPE: ;$
2743 PPCODE:
2744{
2745 int fd[2];
2746 int res;
2747
2748 if (flags)
2749#if HAVE_PIPE2
2750 res = pipe2 (fd, flags);
2751#else
2752 res = (errno = ENOSYS, -1);
2753#endif
2754 else
2755 res = pipe (fd);
2756
2757 if (!res)
2758 {
2759 EXTEND (SP, 2);
2760 PUSHs (newmortalFH (fd[0], O_RDONLY));
2761 PUSHs (newmortalFH (fd[1], O_WRONLY));
2762 }
2763}
2764
2765void
2766pidfd_open (int pid, unsigned int flags = 0)
2767 PPCODE:
2768{
2769 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2770 int fd = syscall (SYS_pidfd_open, pid, flags);
2771 XPUSHs (newmortalFH (fd, O_RDWR));
2772}
2773
2774int
2775pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
2776 PPCODE:
2777{
2778 int res;
2779#if HAVE_SIGINFO_T
2780 siginfo_t si = { 0 };
2781
2782 if (SvOK (siginfo))
2783 {
2784 HV *hv;
2785 SV **svp;
2786
2787 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2788 croak ("siginfo argument must be a hashref with 'code', 'pid', 'uid' and 'value_int' or 'value_ptr' members, caught");
2789
2790 hv = (HV *)SvRV (siginfo);
2791
2792 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2793 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2794 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2795 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2796 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2797 }
2798
2799 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2800 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2801#else
2802 res = (errno = ENOSYS, -1);
2803#endif
2804
2805 XPUSHs (sv_2mortal (newSViv (res)));
2806}
2807
2808void
2809pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2810 PPCODE:
2811{
2812 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2813 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2814 XPUSHs (newmortalFH (fd, O_RDWR));
2815}
2816
2817void
2818eventfd (unsigned int initval = 0, int flags = 0)
2819 PPCODE:
2820{
2821 int fd;
2822#if HAVE_EVENTFD
2823 fd = eventfd (initval, flags);
2824#else
2825 fd = (errno = ENOSYS, -1);
2826#endif
2827
2828 XPUSHs (newmortalFH (fd, O_RDWR));
2829}
2830
2831void
2832timerfd_create (int clockid, int flags = 0)
2833 PPCODE:
2834{
2835 int fd;
2836#if HAVE_TIMERFD
2837 fd = timerfd_create (clockid, flags);
2838#else
2839 fd = (errno = ENOSYS, -1);
2840#endif
2841
2842 XPUSHs (newmortalFH (fd, O_RDWR));
2843}
2844
2845void
2846timerfd_settime (SV *fh, int flags, NV interval, NV value)
2847 PPCODE:
2848{
2849 int fd = s_fileno_croak (fh, 0);
2850#if HAVE_TIMERFD
2851 int res;
2852 struct itimerspec its, ots;
2853
2854 ts_set (&its.it_interval, interval);
2855 ts_set (&its.it_value , value);
2856 res = timerfd_settime (fd, flags, &its, &ots);
2857
2858 if (!res)
2859 {
2860 EXTEND (SP, 2);
2861 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2862 PUSHs (newSVnv (ts_get (&ots.it_value)));
2863 }
2864#else
2865 errno = ENOSYS;
2866#endif
2867}
2868
2869void
2870timerfd_gettime (SV *fh)
2871 PPCODE:
2872{
2873 int fd = s_fileno_croak (fh, 0);
2874#if HAVE_TIMERFD
2875 int res;
2876 struct itimerspec ots;
2877 res = timerfd_gettime (fd, &ots);
2878
2879 if (!res)
2880 {
2881 EXTEND (SP, 2);
2882 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2883 PUSHs (newSVnv (ts_get (&ots.it_value)));
2884 }
2885#else
2886 errno = ENOSYS;
2887#endif
2888}
2889
2890void
2891memfd_create (octet_string pathname, int flags = 0)
2892 PPCODE:
2893{
2894 int fd;
2895#if HAVE_MEMFD_CREATE
2896 fd = memfd_create (pathname, flags);
2897#else
2898 fd = (errno = ENOSYS, -1);
2899#endif
2900
2901 XPUSHs (newmortalFH (fd, O_RDWR));
2902}
2903
2904int
2905fexecve (SV *fh, SV *args, SV *envs = &PL_sv_undef)
1207 CODE: 2906 CODE:
1208 RETVAL = nreqs; 2907{
2908 int fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
2909 char **envp, **argv;
2910 argv = extract_stringvec (args, "IO::AIO::fexecve: args must be an array of strings");
2911 if (!SvOK (envs))
2912 {
2913 extern char **environ;
2914 envp = environ;
2915 }
2916 else
2917 envp = extract_stringvec (envs, "IO::AIO::fexecve: envs must be an array of strings");
2918#if _POSIX_VERSION >= 200809L
2919 RETVAL = fexecve (fd, argv, envp);
2920#else
2921 RETVAL = (errno = ENOSYS, -1);
2922#endif
2923}
2924 OUTPUT: RETVAL
2925
2926int
2927mount (octet_string special, octet_string path, octet_string fstype, UV flags = 0, octet_string_ornull data = 0)
2928 OUTPUT: RETVAL
2929
2930int
2931umount (octet_string path, int flags = 0)
2932 CODE:
2933 if (flags)
2934#if HAVE_UMOUNT2
2935 RETVAL = umount2 (path, flags);
2936#else
2937 RETVAL = (errno = ENOSYS, -1);
2938#endif
2939 else
2940 RETVAL = umount (path);
2941 OUTPUT: RETVAL
2942
2943UV
2944get_fdlimit ()
2945 CODE:
2946#if HAVE_RLIMITS
2947 struct rlimit rl;
2948 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2949 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2950#endif
2951 XSRETURN_UNDEF;
1209 OUTPUT: 2952 OUTPUT:
1210 RETVAL 2953 RETVAL
2954
2955void
2956min_fdlimit (UV limit = 0x7fffffffU)
2957 CODE:
2958{
2959#if HAVE_RLIMITS
2960 struct rlimit rl;
2961 rlim_t orig_rlim_max;
2962 UV bit;
2963
2964 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2965 goto fail;
2966
2967 if (rl.rlim_cur == RLIM_INFINITY)
2968 XSRETURN_YES;
2969
2970 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2971
2972 if (rl.rlim_cur < limit)
2973 {
2974 rl.rlim_cur = limit;
2975
2976 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2977 rl.rlim_max = rl.rlim_cur;
2978 }
2979
2980 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2981 XSRETURN_YES;
2982
2983 if (errno == EPERM)
2984 {
2985 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2986 /* our limit overflows a system-wide limit */
2987 /* try an adaptive algorithm, but do not lower the hardlimit */
2988 rl.rlim_max = 0;
2989 for (bit = 0x40000000U; bit; bit >>= 1)
2990 {
2991 rl.rlim_max |= bit;
2992 rl.rlim_cur = rl.rlim_max;
2993
2994 /* never decrease the hard limit */
2995 if (rl.rlim_max < orig_rlim_max)
2996 break;
2997
2998 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2999 rl.rlim_max &= ~bit; /* too high, remove bit again */
3000 }
3001
3002 /* now, raise the soft limit to the max permitted */
3003 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
3004 {
3005 rl.rlim_cur = rl.rlim_max;
3006 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
3007 errno = EPERM;
3008 }
3009 }
3010#endif
3011 fail:
3012 XSRETURN_UNDEF;
3013}
3014
3015void _on_next_submit (SV *cb)
3016 CODE:
3017 SvREFCNT_dec (on_next_submit);
3018 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
3019
3020PROTOTYPES: DISABLE
3021
3022MODULE = IO::AIO PACKAGE = IO::AIO::WD
3023
3024BOOT:
3025{
3026 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
3027 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
3028}
3029
3030void
3031DESTROY (SV *self)
3032 CODE:
3033{
3034 aio_wd wd = SvAIO_WD (self);
3035#if HAVE_AT
3036 {
3037 SV *callback = &PL_sv_undef;
3038 dREQ; /* clobbers next_pri :/ */
3039 next_pri = req->pri; /* restore next_pri */
3040 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
3041 req->type = EIO_WD_CLOSE;
3042 req->wd = wd;
3043 REQ_SEND;
3044 }
3045#else
3046 eio_wd_close_sync (wd);
3047#endif
3048}
1211 3049
1212MODULE = IO::AIO PACKAGE = IO::AIO::REQ 3050MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1213 3051
1214void 3052void
1215cancel (aio_req_ornot req) 3053cancel (aio_req_ornot req)
1216 PROTOTYPE:
1217 CODE: 3054 CODE:
1218 req_cancel (req); 3055 eio_cancel (req);
3056
3057void
3058cb (aio_req_ornot req, SV *callback = NO_INIT)
3059 PPCODE:
3060{
3061 if (GIMME_V != G_VOID)
3062 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
3063
3064 if (items > 1)
3065 {
3066 SV *cb_cv = get_cb (callback);
3067
3068 SvREFCNT_dec (req->callback);
3069 req->callback = SvREFCNT_inc (cb_cv);
3070 }
3071}
1219 3072
1220MODULE = IO::AIO PACKAGE = IO::AIO::GRP 3073MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1221 3074
1222void 3075void
1223add (aio_req grp, ...) 3076add (aio_req grp, ...)
1224 PROTOTYPE: $;@
1225 PPCODE: 3077 PPCODE:
1226{ 3078{
1227 int i; 3079 int i;
3080
3081 if (grp->int1 == 2)
3082 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1228 3083
1229 for (i = 1; i < items; ++i ) 3084 for (i = 1; i < items; ++i )
1230 { 3085 {
3086 aio_req req;
3087
1231 if (GIMME_V != G_VOID) 3088 if (GIMME_V != G_VOID)
1232 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 3089 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1233 3090
1234 aio_req req = SvAIO_REQ (ST (i)); 3091 req = SvAIO_REQ (ST (i));
1235 3092
1236 if (req) 3093 if (req)
1237 { 3094 eio_grp_add (grp, req);
1238 req->grp_prev = grp;
1239 req->grp_next = grp->grp_next;
1240 grp->grp_next->grp_prev = req;
1241 grp->grp_next = req;
1242
1243 req->grp = grp;
1244 }
1245 } 3095 }
1246} 3096}
1247 3097
3098void
3099cancel_subs (aio_req_ornot req)
3100 CODE:
3101 req_cancel_subs (req);
3102
3103void
3104result (aio_req grp, ...)
3105 CODE:
3106{
3107 int i;
3108 AV *av;
3109
3110 grp->errorno = errno;
3111
3112 av = newAV ();
3113 av_extend (av, items - 1);
3114
3115 for (i = 1; i < items; ++i )
3116 av_push (av, newSVsv (ST (i)));
3117
3118 SvREFCNT_dec (grp->sv1);
3119 grp->sv1 = (SV *)av;
3120}
3121
3122void
3123errno (aio_req grp, int errorno = errno)
3124 CODE:
3125 grp->errorno = errorno;
3126
3127void
3128limit (aio_req grp, int limit)
3129 CODE:
3130 eio_grp_limit (grp, limit);
3131
3132void
3133feed (aio_req grp, SV *callback = &PL_sv_undef)
3134 CODE:
3135{
3136 SvREFCNT_dec (grp->sv2);
3137 grp->sv2 = newSVsv (callback);
3138 grp->feed = aio_grp_feed;
3139
3140 if (grp->int2 <= 0)
3141 grp->int2 = 2;
3142
3143 eio_grp_limit (grp, grp->int2);
3144}
3145

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