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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.48 by root, Sun Oct 22 10:33:19 2006 UTC vs.
Revision 1.264 by root, Tue Aug 14 11:44:52 2018 UTC

1#define _REENTRANT 1 1#include "libeio/xthread.h"
2
2#include <errno.h> 3#include <errno.h>
3 4
4#include "EXTERN.h" 5#include "EXTERN.h"
5#include "perl.h" 6#include "perl.h"
6#include "XSUB.h" 7#include "XSUB.h"
7 8
8#include "autoconf/config.h" 9#if !defined mg_findext
9 10# define mg_findext(sv,type,vtbl) mg_find (sv, type)
10#include <pthread.h> 11#endif
11 12
12#include <stddef.h> 13#include <stddef.h>
14#include <stdlib.h>
13#include <errno.h> 15#include <errno.h>
14#include <sys/time.h>
15#include <sys/select.h>
16#include <sys/types.h> 16#include <sys/types.h>
17#include <sys/socket.h>
17#include <sys/stat.h> 18#include <sys/stat.h>
18#include <limits.h> 19#include <limits.h>
19#include <unistd.h>
20#include <fcntl.h> 20#include <fcntl.h>
21#include <signal.h>
22#include <sched.h> 21#include <sched.h>
23 22
24#if HAVE_SENDFILE 23#if HAVE_SYS_SYSMACROS_H
25# if __linux
26# include <sys/sendfile.h>
27# elif __freebsd
28# include <sys/socket.h> 24# include <sys/sysmacros.h>
25#endif
26
27#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
29# include <sys/uio.h> 28# include <sys/mman.h>
30# elif __hpux 29#endif
30
31/* the incompetent fool that created musl keeps __linux__, refuses
32 * to implement any linux standard apis, and also has no way to test
33 * for his broken iplementation. don't complain to me if this fails
34 * for you.
35 */
36#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
37# include <linux/fs.h>
38# ifdef FS_IOC_FIEMAP
39# include <linux/types.h>
40# include <linux/fiemap.h>
41# define HAVE_FIEMAP 1
42# endif
43#endif
44
45/* perl namespace pollution */
46#undef VERSION
47
48/* perl stupidly overrides readdir and maybe others */
49/* with thread-unsafe versions, imagine that :( */
50#undef readdir
51#undef opendir
52#undef closedir
53
54#ifdef _WIN32
55
56 // perl overrides all those nice libc functions
57
58 #undef malloc
59 #undef free
60 #undef open
61 #undef read
62 #undef write
63 #undef send
64 #undef recv
65 #undef stat
66 #undef lstat
67 #undef fstat
68 #undef truncate
69 #undef ftruncate
70 #undef open
71 #undef link
72 #undef close
73 #undef unlink
74 #undef mkdir
75 #undef rmdir
76 #undef rename
77 #undef lseek
78 #undef opendir
79 #undef readdir
80 #undef closedir
81 #undef chmod
82 #undef fchmod
83 #undef dup
84 #undef dup2
85 #undef abort
86 #undef pipe
87
88 #define EIO_STRUCT_STAT struct _stati64
89 #define EIO_STRUCT_STATI64
90
91#else
92
31# include <sys/socket.h> 93 #include <sys/time.h>
32# elif __solaris /* not yet */
33# include <sys/sendfile.h> 94 #include <sys/select.h>
95 #include <unistd.h>
96 #include <utime.h>
97 #include <signal.h>
98
99 #define EIO_STRUCT_STAT Stat_t
100
101#endif
102
103/*****************************************************************************/
104
105#if __GNUC__ >= 3
106# define expect(expr,value) __builtin_expect ((expr),(value))
107#else
108# define expect(expr,value) (expr)
109#endif
110
111#define expect_false(expr) expect ((expr) != 0, 0)
112#define expect_true(expr) expect ((expr) != 0, 1)
113
114/*****************************************************************************/
115
116#include "config.h"
117
118#if HAVE_ST_XTIMENSEC
119# define ATIMENSEC PL_statcache.st_atimensec
120# define MTIMENSEC PL_statcache.st_mtimensec
121# define CTIMENSEC PL_statcache.st_ctimensec
122#elif HAVE_ST_XTIMESPEC
123# define ATIMENSEC PL_statcache.st_atim.tv_nsec
124# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
125# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
126#else
127# define ATIMENSEC 0
128# define MTIMENSEC 0
129# define CTIMENSEC 0
130#endif
131
132#include "schmorp.h"
133
134#if HAVE_EVENTFD
135# include <sys/eventfd.h>
136#endif
137
138#if HAVE_TIMERFD
139# include <sys/timerfd.h>
140#endif
141
142#if HAVE_RLIMITS
143 #include <sys/time.h>
144 #include <sys/resource.h>
145#endif
146
147typedef SV SV8; /* byte-sv, used for argument-checking */
148typedef int aio_rfd; /* read file desriptor */
149typedef int aio_wfd; /* write file descriptor */
150
151static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
152
153#define EIO_REQ_MEMBERS \
154 SV *callback; \
155 SV *sv1, *sv2; \
156 SV *sv3, *sv4; \
157 STRLEN stroffset; \
158 SV *self;
159
160#define EIO_NO_WRAPPERS 1
161
162#include "libeio/eio.h"
163
164static int req_invoke (eio_req *req);
165#define EIO_FINISH(req) req_invoke (req)
166static void req_destroy (eio_req *grp);
167#define EIO_DESTROY(req) req_destroy (req)
168
169#include "libeio/eio.c"
170
171#if !HAVE_POSIX_FADVISE
172# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
173#endif
174
175#if !HAVE_POSIX_MADVISE
176# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
177#endif
178
179#ifndef MAP_ANONYMOUS
180# ifdef MAP_ANON
181# define MAP_ANONYMOUS MAP_ANON
34# else 182# else
35# error sendfile support requested but not available 183# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
36# endif 184# endif
37#endif 185#endif
38 186
39/* used for struct dirent, AIX doesn't provide it */ 187#ifndef makedev
40#ifndef NAME_MAX 188# define makedev(maj,min) (((maj) << 8) | (min))
41# define NAME_MAX 4096
42#endif 189#endif
43 190#ifndef major
44#if __ia64 191# define major(dev) ((dev) >> 8)
45# define STACKSIZE 65536
46#else
47# define STACKSIZE 8192
48#endif 192#endif
193#ifndef minor
194# define minor(dev) ((dev) & 0xff)
195#endif
49 196
50enum { 197#if PAGESIZE <= 0
51 REQ_QUIT, 198# define PAGESIZE sysconf (_SC_PAGESIZE)
52 REQ_OPEN, REQ_CLOSE, 199#endif
53 REQ_READ, REQ_WRITE, REQ_READAHEAD, 200
54 REQ_SENDFILE, 201/*****************************************************************************/
55 REQ_STAT, REQ_LSTAT, REQ_FSTAT, 202
56 REQ_FSYNC, REQ_FDATASYNC, 203#if !_POSIX_MAPPED_FILES
57 REQ_UNLINK, REQ_RMDIR, REQ_RENAME, 204# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
58 REQ_READDIR, 205# define munmap(addr,length) EIO_ENOSYS ()
59 REQ_LINK, REQ_SYMLINK, 206#endif
60 REQ_SLEEP, 207
61 REQ_GROUP, 208#if !_POSIX_MEMORY_PROTECTION
209# define mprotect(addr,len,prot) EIO_ENOSYS ()
210#endif
211
212#if !MREMAP_MAYMOVE
213# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
214#endif
215
216#define FOREIGN_MAGIC PERL_MAGIC_ext
217
218static int ecb_cold
219mmap_free (pTHX_ SV *sv, MAGIC *mg)
220{
221 int old_errno = errno;
222 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
223 errno = old_errno;
224
225 mg->mg_obj = 0; /* just in case */
226
227 SvREADONLY_off (sv);
228
229 if (SvPVX (sv) != mg->mg_ptr)
230 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
231
232 SvCUR_set (sv, 0);
233 SvPVX (sv) = 0;
234 SvOK_off (sv);
235
236 return 0;
237}
238
239static MGVTBL mmap_vtbl = {
240 0, 0, 0, 0, mmap_free
62}; 241};
63 242
64#define AIO_REQ_KLASS "IO::AIO::REQ" 243static int ecb_cold
65#define AIO_GRP_KLASS "IO::AIO::GRP" 244sysfree_free (pTHX_ SV *sv, MAGIC *mg)
66
67typedef struct aio_cb
68{ 245{
69 struct aio_cb *grp, *grp_prev, *grp_next; 246 free (mg->mg_ptr);
247 mg->mg_obj = 0; /* just in case */
70 248
71 struct aio_cb *volatile next; 249 SvREADONLY_off (sv);
72 250
73 SV *self; /* the perl counterpart of this request, if any */ 251 if (SvPVX (sv) != mg->mg_ptr)
252 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
74 253
75 SV *data, *callback; 254 SvCUR_set (sv, 0);
76 SV *fh, *fh2; 255 SvPVX (sv) = 0;
77 void *dataptr, *data2ptr; 256 SvOK_off (sv);
78 Stat_t *statdata;
79 off_t offset;
80 size_t length;
81 ssize_t result;
82 257
83 int type; 258 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} 259}
116 260
117static aio_req SvAIO_REQ (SV *sv) 261static MGVTBL sysfree_vtbl = {
118{ 262 0, 0, 0, 0, sysfree_free
119 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 263};
120 croak ("object of class " AIO_REQ_KLASS " expected");
121 264
122 MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 265/*****************************************************************************/
123 266
124 return mg ? (aio_req)mg->mg_ptr : 0; 267/* helper: set scalar to foreign ptr with custom free */
125} 268static void
126 269sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
127static void poll_wait ()
128{ 270{
129 if (nreqs && !ress) 271 sv_force_normal (sv);
272
273 /* we store the length in mg_obj, as namlen is I32 :/ */
274 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
275 ->mg_obj = (SV *)length;
276
277 SvUPGRADE (sv, SVt_PV); /* nop... */
278
279 if (SvLEN (sv))
280 Safefree (SvPVX (sv));
281
282 SvPVX (sv) = (char *)addr;
283 SvCUR_set (sv, length);
284 SvLEN_set (sv, 0);
285 SvPOK_only (sv);
286}
287
288static void
289sv_clear_foreign (SV *sv)
290{
291 /* todo: iterate over magic and only free ours, but of course */
292 /* the perl5porters will call that (correct) behaviour buggy */
293 sv_unmagic (sv, FOREIGN_MAGIC);
294}
295
296/*****************************************************************************/
297
298/* defines all sorts of constants to 0 unless they are already defined */
299/* also provides const_iv_ and const_niv_ macros for them */
300#include "def0.h"
301
302/*****************************************************************************/
303
304static void
305fiemap (eio_req *req)
306{
307 req->result = -1;
308
309#if HAVE_FIEMAP
310 /* assume some c99 */
311 struct fiemap *fiemap = 0;
312 size_t end_offset;
313 int count = req->int3;
314
315 req->flags |= EIO_FLAG_PTR1_FREE;
316
317 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
318 /* increase in 3.5kb steps */
319 if (count < 0)
320 count = 8;
321
322 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
323 errno = ENOMEM;
324 if (!fiemap)
325 return;
326
327 req->ptr1 = fiemap;
328
329 fiemap->fm_start = req->offs;
330 fiemap->fm_length = req->size;
331 fiemap->fm_flags = req->int2;
332 fiemap->fm_extent_count = count;
333
334 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
335 return;
336
337 if (req->int3 >= 0 /* not autosizing */
338 || !fiemap->fm_mapped_extents /* no more extents */
339 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
340 goto done;
341
342 /* else we have to loop -
343 * it would be tempting (actually I tried that first) to just query the
344 * number of extents needed, but linux often feels like not returning all
345 * extents, without telling us it left any out. this complicates
346 * this quite a bit.
347 */
348
349 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
350
351 for (;;)
130 { 352 {
131 fd_set rfd; 353 /* 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); 354 char scratch[3072];
133 FD_SET(respipe [0], &rfd); 355 struct fiemap *incmap = (struct fiemap *)scratch;
134 356
135 select (respipe [0] + 1, &rfd, 0, 0, 0); 357 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
136 } 358 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
137} 359 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
360 incmap->fm_flags = fiemap->fm_flags;
361 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
138 362
139static void req_invoke (aio_req req) 363 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; 364 return;
146 365
147 errno = req->errorno; 366 if (!incmap->fm_mapped_extents)
367 goto done;
148 368
149 ENTER; 369 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
150 PUSHMARK (SP); 370 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
151 EXTEND (SP, 1); 371 errno = ENOMEM;
372 if (!fiemap)
373 return;
152 374
153 switch (req->type) 375 req->ptr1 = fiemap;
154 { 376
155 case REQ_READDIR: 377 for (count = 0; count < incmap->fm_mapped_extents; ++count)
156 { 378 {
157 SV *rv = &PL_sv_undef; 379 struct fiemap_extent *e = incmap->fm_extents + count;
158 380
159 if (req->result >= 0) 381 if (e->fe_logical + e->fe_length >= end_offset)
160 { 382 goto done;
161 char *buf = req->data2ptr;
162 AV *av = newAV ();
163 383
164 while (req->result) 384 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
165 {
166 SV *sv = newSVpv (buf, 0);
167 385
168 av_push (av, sv); 386 if (e->fe_flags & FIEMAP_EXTENT_LAST)
169 buf += SvCUR (sv) + 1; 387 goto done;
170 req->result--;
171 }
172 388
173 rv = sv_2mortal (newRV_noinc ((SV *)av));
174 }
175
176 PUSHs (rv);
177 }
178 break;
179
180 case REQ_OPEN:
181 {
182 /* convert fd to fh */
183 SV *fh;
184
185 PUSHs (sv_2mortal (newSViv (req->result)));
186 PUTBACK;
187 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
188 SPAGAIN;
189
190 fh = SvREFCNT_inc (POPs);
191
192 PUSHMARK (SP);
193 XPUSHs (sv_2mortal (fh));
194 }
195 break;
196
197 case REQ_GROUP:
198 if (req->data)
199 {
200 int i;
201 AV *av = (AV *)req->data;
202
203 EXTEND (SP, AvFILL (av) + 1);
204 for (i = 0; i <= AvFILL (av); ++i)
205 PUSHs (*av_fetch (av, i, 0));
206 }
207 break;
208
209 case REQ_SLEEP:
210 break;
211
212 default:
213 PUSHs (sv_2mortal (newSViv (req->result)));
214 break;
215 }
216
217
218 PUTBACK;
219 call_sv (req->callback, G_VOID | G_EVAL);
220 SPAGAIN;
221
222 if (SvTRUE (ERRSV))
223 {
224 req_free (req);
225 croak (0);
226 }
227
228 LEAVE;
229
230 errno = errorno;
231}
232
233static void req_free (aio_req req)
234{
235 if (req->grp)
236 {
237 aio_req grp = req->grp;
238
239 /* unlink request */
240 req->grp_next->grp_prev = req->grp_prev;
241 req->grp_prev->grp_next = req->grp_next;
242
243 if (grp->grp_next == grp && grp->fd)
244 {
245 req_invoke (grp);
246 req_free (grp);
247 } 389 }
248 } 390 }
249 391
392done:
393 req->result = 0;
394
395#else
396 errno = ENOSYS;
397#endif
398}
399
400/*****************************************************************************/
401
402enum {
403 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
404};
405
406typedef eio_req *aio_req;
407typedef eio_req *aio_req_ornot;
408typedef eio_wd aio_wd;
409
410static SV *on_next_submit;
411static int next_pri = EIO_PRI_DEFAULT;
412static int max_outstanding;
413
414static s_epipe respipe;
415
416static void req_destroy (aio_req req);
417static void req_cancel (aio_req req);
418
419static void
420want_poll (void)
421{
422 /* write a dummy byte to the pipe so fh becomes ready */
423 s_epipe_signal (&respipe);
424}
425
426static void
427done_poll (void)
428{
429 /* read any signals sent by the worker threads */
430 s_epipe_drain (&respipe);
431}
432
433/* must be called at most once */
434static SV *
435req_sv (aio_req req, HV *stash)
436{
437 if (!req->self)
438 {
439 req->self = (SV *)newHV ();
440 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
441 }
442
443 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
444}
445
446static SV *
447newSVaio_wd (aio_wd wd)
448{
449 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
450}
451
452static aio_req
453SvAIO_REQ (SV *sv)
454{
455 MAGIC *mg;
456
457 if (!SvROK (sv)
458 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
459 || (SvSTASH (SvRV (sv)) != aio_grp_stash
460 && SvSTASH (SvRV (sv)) != aio_req_stash
461 && !sv_derived_from (sv, "IO::AIO::REQ")))
462 croak ("object of class IO::AIO::REQ expected");
463
464 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
465
466 return mg ? (aio_req)mg->mg_ptr : 0;
467}
468
469static aio_wd
470SvAIO_WD (SV *sv)
471{
472 if (!SvROK (sv)
473 || SvTYPE (SvRV (sv)) != SVt_PVMG
474 || SvSTASH (SvRV (sv)) != aio_wd_stash)
475 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
476
477 return (aio_wd)(long)SvIVX (SvRV (sv));
478}
479
480static SV *
481newmortalFH (int fd, int flags)
482{
483 if (fd < 0)
484 return &PL_sv_undef;
485
486 GV *gv = (GV *)sv_newmortal ();
487 char sym[64];
488 int symlen;
489
490 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
491 gv_init (gv, aio_stash, sym, symlen, 0);
492
493 symlen = snprintf (
494 sym,
495 sizeof (sym),
496 "%s&=%d",
497 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
498 fd
499 );
500
501 return do_open (gv, sym, symlen, 0, 0, 0, 0)
502 ? (SV *)gv : &PL_sv_undef;
503}
504
505static void
506aio_grp_feed (aio_req grp)
507{
508 if (grp->sv2 && SvOK (grp->sv2))
509 {
510 dSP;
511
512 ENTER;
513 SAVETMPS;
514 PUSHMARK (SP);
515 XPUSHs (req_sv (grp, aio_grp_stash));
516 PUTBACK;
517 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
518 SPAGAIN;
519 FREETMPS;
520 LEAVE;
521 }
522}
523
524static void
525req_submit (eio_req *req)
526{
527 eio_submit (req);
528
529 if (expect_false (on_next_submit))
530 {
531 dSP;
532 SV *cb = sv_2mortal (on_next_submit);
533
534 on_next_submit = 0;
535
536 PUSHMARK (SP);
537 PUTBACK;
538 call_sv (cb, G_DISCARD | G_EVAL);
539 }
540}
541
542static int
543req_invoke (eio_req *req)
544{
545 if (req->flags & FLAG_SV2_RO_OFF)
546 SvREADONLY_off (req->sv2);
547
548 if (!EIO_CANCELLED (req) && req->callback)
549 {
550 dSP;
551 static SV *sv_result_cache; /* caches the result integer SV */
552 SV *sv_result;
553
554 ENTER;
555 SAVETMPS;
556 PUSHMARK (SP);
557 EXTEND (SP, 1);
558
559 /* do not recreate the result IV from scratch each time */
560 if (expect_true (sv_result_cache))
561 {
562 sv_result = sv_result_cache; sv_result_cache = 0;
563 SvIV_set (sv_result, req->result);
564 SvIOK_only (sv_result);
565 }
566 else
567 {
568 sv_result = newSViv (req->result);
569 SvREADONLY_on (sv_result);
570 }
571
572 switch (req->type)
573 {
574 case EIO_WD_OPEN:
575 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
576 break;
577
578 case EIO_READDIR:
579 {
580 SV *rv = &PL_sv_undef;
581
582 if (req->result >= 0)
583 {
584 int i;
585 char *names = (char *)req->ptr2;
586 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
587 AV *av = newAV ();
588
589 av_extend (av, req->result - 1);
590
591 for (i = 0; i < req->result; ++i)
592 {
593 if (req->int1 & EIO_READDIR_DENTS)
594 {
595 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
596
597 if (req->int1 & EIO_READDIR_CUSTOM2)
598 {
599 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
600 AV *avent = newAV ();
601
602 av_extend (avent, 2);
603
604 if (!sv_type [ent->type])
605 {
606 sv_type [ent->type] = newSViv (ent->type);
607 SvREADONLY_on (sv_type [ent->type]);
608 }
609
610 av_store (avent, 0, namesv);
611 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
612 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
613
614 av_store (av, i, newRV_noinc ((SV *)avent));
615 }
616 else
617 av_store (av, i, namesv);
618
619 ++ent;
620 }
621 else
622 {
623 SV *name = newSVpv (names, 0);
624 av_store (av, i, name);
625 names += SvCUR (name) + 1;
626 }
627 }
628
629 rv = sv_2mortal (newRV_noinc ((SV *)av));
630 }
631
632 PUSHs (rv);
633
634 if (req->int1 & EIO_READDIR_CUSTOM1)
635 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
636 }
637 break;
638
639 case EIO_OPEN:
640 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
641 break;
642
643 case EIO_STATVFS:
644 case EIO_FSTATVFS:
645 {
646 SV *rv = &PL_sv_undef;
647
648#ifndef _WIN32
649 if (req->result >= 0)
650 {
651 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
652 HV *hv = newHV ();
653 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
654 * chooses to make it a struct.
655 */
656 unsigned long fsid = 0;
657 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
658
659 rv = sv_2mortal (newRV_noinc ((SV *)hv));
660
661 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
662 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
663 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
664 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
665 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
666 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
667 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
668 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
669 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
670 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
671 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
672 }
673#endif
674
675 PUSHs (rv);
676 }
677
678 break;
679
680 case EIO_GROUP:
681 req->int1 = 2; /* mark group as finished */
682
683 if (req->sv1)
684 {
685 int i;
686 AV *av = (AV *)req->sv1;
687
688 EXTEND (SP, AvFILL (av) + 1);
689 for (i = 0; i <= AvFILL (av); ++i)
690 PUSHs (*av_fetch (av, i, 0));
691 }
692 break;
693
694 case EIO_NOP:
695 case EIO_BUSY:
696 break;
697
698 case EIO_READLINK:
699 case EIO_REALPATH:
700 if (req->result > 0)
701 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
702 break;
703
704 case EIO_STAT:
705 case EIO_LSTAT:
706 case EIO_FSTAT:
707 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
708
709 if (!(PL_laststatval = req->result))
710 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
711 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
712
713 PUSHs (sv_result);
714 break;
715
716 case EIO_SEEK:
717 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
718 break;
719
720 case EIO_READ:
721 {
722 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
723 *SvEND (req->sv2) = 0;
724 SvPOK_only (req->sv2);
725 SvSETMAGIC (req->sv2);
726 PUSHs (sv_result);
727 }
728 break;
729
730 case EIO_SLURP:
731 {
732 if (req->result >= 0)
733 {
734 /* if length was originally not known, we steal the malloc'ed memory */
735 if (req->flags & EIO_FLAG_PTR2_FREE)
736 {
737 req->flags &= ~EIO_FLAG_PTR2_FREE;
738 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
739 }
740 else
741 {
742 SvCUR_set (req->sv2, req->result);
743 *SvEND (req->sv2) = 0;
744 SvPOK_only (req->sv2);
745 }
746
747 SvSETMAGIC (req->sv2);
748 }
749
750 PUSHs (sv_result);
751 }
752 break;
753
754 case EIO_CUSTOM:
755 if (req->feed == fiemap)
756 {
757#if HAVE_FIEMAP
758 if (!req->result)
759 {
760 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
761
762 if (fiemap->fm_extent_count)
763 {
764 AV *av = newAV ();
765 int i;
766
767 while (fiemap->fm_mapped_extents)
768 {
769 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
770 AV *ext_av = newAV ();
771
772 av_store (ext_av, 3, newSVuv (extent->fe_flags));
773 av_store (ext_av, 2, newSVval64 (extent->fe_length));
774 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
775 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
776
777 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
778 }
779
780 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
781 }
782 else
783 {
784 SvIV_set (sv_result, fiemap->fm_mapped_extents);
785 PUSHs (sv_result);
786 }
787 }
788#endif
789 }
790 else
791 PUSHs (sv_result);
792 break;
793
794 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
795 if (req->result > 0)
796 SvIV_set (sv_result, 0);
797 /* FALLTHROUGH */
798
799 default:
800 PUSHs (sv_result);
801 break;
802 }
803
804 errno = req->errorno;
805
806 PUTBACK;
807 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
808 SPAGAIN;
809
810 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
811 SvREFCNT_dec (sv_result);
812 else
813 sv_result_cache = sv_result;
814
815 FREETMPS;
816 LEAVE;
817
818 PUTBACK;
819 }
820
821 return !!SvTRUE (ERRSV);
822}
823
824static void
825req_destroy (aio_req req)
826{
250 if (req->self) 827 if (req->self)
251 { 828 {
252 sv_unmagic (req->self, PERL_MAGIC_ext); 829 sv_unmagic (req->self, PERL_MAGIC_ext);
253 SvREFCNT_dec (req->self); 830 SvREFCNT_dec (req->self);
254 } 831 }
255 832
256 if (req->data)
257 SvREFCNT_dec (req->data);
258
259 if (req->fh)
260 SvREFCNT_dec (req->fh); 833 SvREFCNT_dec (req->sv1);
261
262 if (req->fh2)
263 SvREFCNT_dec (req->fh2); 834 SvREFCNT_dec (req->sv2);
264 835 SvREFCNT_dec (req->sv3);
265 if (req->statdata) 836 SvREFCNT_dec (req->sv4);
266 Safefree (req->statdata);
267
268 if (req->callback)
269 SvREFCNT_dec (req->callback); 837 SvREFCNT_dec (req->callback);
270 838
271 if (req->type == REQ_READDIR && req->result >= 0)
272 free (req->data2ptr);
273
274 Safefree (req); 839 free (req);
275} 840}
276 841
277static void req_cancel (aio_req req) 842static void
843req_cancel_subs (aio_req grp)
278{ 844{
279 req->cancelled = 1;
280
281 if (req->type == REQ_GROUP) 845 if (grp->type != EIO_GROUP)
846 return;
847
848 SvREFCNT_dec (grp->sv2);
849 grp->sv2 = 0;
850
851 eio_grp_cancel (grp);
852}
853
854static void ecb_cold
855create_respipe (void)
856{
857 if (s_epipe_renew (&respipe))
858 croak ("IO::AIO: unable to initialize result pipe");
859}
860
861static void
862poll_wait (void)
863{
864 while (eio_nreqs ())
282 { 865 {
283 aio_req sub; 866 int size;
284 867
285 for (sub = req->grp_next; sub != req; sub = sub->grp_next) 868 X_LOCK (EIO_POOL->reslock);
286 req_cancel (sub); 869 size = EIO_POOL->res_queue.size;
870 X_UNLOCK (EIO_POOL->reslock);
871
872 if (size)
873 return;
874
875 etp_maybe_start_thread (EIO_POOL);
876
877 s_epipe_wait (&respipe);
287 } 878 }
288} 879}
289 880
290static int poll_cb () 881static int
882poll_cb (void)
291{ 883{
292 dSP;
293 int count = 0;
294 int do_croak = 0;
295 aio_req req;
296
297 for (;;) 884 for (;;)
298 { 885 {
299 pthread_mutex_lock (&reslock); 886 int res = eio_poll ();
300 req = ress;
301 887
302 if (req) 888 if (res > 0)
889 croak (0);
890
891 if (!max_outstanding || max_outstanding > eio_nreqs ())
892 return res;
893
894 poll_wait ();
895 }
896}
897
898static void ecb_cold
899reinit (void)
900{
901 create_respipe ();
902
903 if (eio_init (want_poll, done_poll) < 0)
904 croak ("IO::AIO: unable to initialise eio library");
905}
906
907/*****************************************************************************/
908
909static SV *
910get_cb (SV *cb_sv)
911{
912 SvGETMAGIC (cb_sv);
913 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
914}
915
916static aio_req ecb_noinline
917dreq (SV *callback)
918{
919 SV *cb_cv;
920 aio_req req;
921 int req_pri = next_pri;
922 next_pri = EIO_PRI_DEFAULT;
923
924 cb_cv = get_cb (callback);
925
926 req = calloc (sizeof (*req), 1);
927 if (!req)
928 croak ("out of memory during eio_req allocation");
929
930 req->callback = SvREFCNT_inc (cb_cv);
931 req->pri = req_pri;
932
933 return req;
934}
935
936#define dREQ \
937 aio_req req = dreq (callback); \
938
939#define REQ_SEND \
940 PUTBACK; \
941 req_submit (req); \
942 SPAGAIN; \
943 \
944 if (GIMME_V != G_VOID) \
945 XPUSHs (req_sv (req, aio_req_stash));
946
947ecb_inline void
948req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
949{
950 if (expect_false (SvROK (path)))
951 {
952 SV *rv = SvRV (path);
953 SV *wdob;
954
955 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
303 { 956 {
304 ress = req->next; 957 path = AvARRAY (rv)[1];
958 wdob = AvARRAY (rv)[0];
305 959
306 if (!ress) 960 if (SvOK (wdob))
307 { 961 {
308 /* read any signals sent by the worker threads */ 962 *wd = SvAIO_WD (wdob);
309 char buf [32]; 963 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
310 while (read (respipe [0], buf, 32) == 32)
311 ;
312
313 rese = 0;
314 } 964 }
965 else
966 *wd = EIO_INVALID_WD;
315 } 967 }
316 968 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
317 pthread_mutex_unlock (&reslock);
318
319 if (!req)
320 break;
321
322 nreqs--;
323
324 if (req->type == REQ_QUIT)
325 started--;
326 else if (req->type == REQ_GROUP && req->grp_next != req)
327 { 969 {
328 req->fd = 1; /* mark request as delayed */ 970 *wd = (aio_wd)(long)SvIVX (rv);
329 continue; 971 *wdsv = SvREFCNT_inc_NN (rv);
972 *ptr = ".";
973 return; /* path set to "." */
330 } 974 }
331 else 975 else
332 { 976 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
333 if (req->type == REQ_READ)
334 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
335
336 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
337 SvREADONLY_off (req->data);
338
339 if (req->statdata)
340 {
341 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
342 PL_laststatval = req->result;
343 PL_statcache = *(req->statdata);
344 }
345
346 req_invoke (req);
347
348 count++;
349 }
350
351 req_free (req);
352 } 977 }
353 978
354 return count; 979 *pathsv = newSVsv (path);
980 *ptr = SvPVbyte_nolen (*pathsv);
355} 981}
356 982
357static void *aio_proc(void *arg); 983static void ecb_noinline
358 984req_set_path1 (aio_req req, SV *path)
359static void start_thread (void)
360{ 985{
361 sigset_t fullsigset, oldsigset; 986 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
362 pthread_t tid;
363 pthread_attr_t attr;
364
365 pthread_attr_init (&attr);
366 pthread_attr_setstacksize (&attr, STACKSIZE);
367 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
368
369 sigfillset (&fullsigset);
370 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
371
372 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
373 started++;
374
375 sigprocmask (SIG_SETMASK, &oldsigset, 0);
376} 987}
377 988
378static void req_send (aio_req req) 989static void ecb_noinline
990req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
379{ 991{
380 while (started < wanted && nreqs >= started) 992 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
381 start_thread ();
382 993
383 nreqs++; 994 switch (SvTYPE (rv))
384
385 pthread_mutex_lock (&reqlock);
386
387 req->next = 0;
388
389 if (reqe)
390 { 995 {
391 reqe->next = req; 996 case SVt_PVIO:
392 reqe = req; 997 case SVt_PVLV:
998 case SVt_PVGV:
999 req->type = type_fh;
1000 req->sv1 = newSVsv (fh_or_path);
1001 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1002 break;
1003
1004 default:
1005 req->type = type_path;
1006 req_set_path1 (req, fh_or_path);
1007 break;
393 } 1008 }
394 else
395 reqe = reqs = req;
396
397 pthread_cond_signal (&reqwait);
398 pthread_mutex_unlock (&reqlock);
399
400 if (nreqs > max_outstanding)
401 for (;;)
402 {
403 poll_cb ();
404
405 if (nreqs <= max_outstanding)
406 break;
407
408 poll_wait ();
409 }
410}
411
412static void end_thread (void)
413{
414 aio_req req;
415 Newz (0, req, 1, aio_cb);
416 req->type = REQ_QUIT;
417
418 req_send (req);
419}
420
421static void min_parallel (int nthreads)
422{
423 if (wanted < nthreads)
424 wanted = nthreads;
425}
426
427static void max_parallel (int nthreads)
428{
429 int cur = started;
430
431 if (wanted > nthreads)
432 wanted = nthreads;
433
434 while (cur > wanted)
435 {
436 end_thread ();
437 cur--;
438 }
439
440 while (started > wanted)
441 {
442 poll_wait ();
443 poll_cb ();
444 }
445}
446
447static void create_pipe ()
448{
449 if (pipe (respipe))
450 croak ("unable to initialize result pipe");
451
452 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
453 croak ("cannot set result pipe to nonblocking mode");
454
455 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
456 croak ("cannot set result pipe to nonblocking mode");
457} 1009}
458 1010
459/*****************************************************************************/ 1011/*****************************************************************************/
460/* work around various missing functions */
461 1012
462#if !HAVE_PREADWRITE 1013static void
463# define pread aio_pread 1014ts_set (struct timespec *ts, NV value)
464# define pwrite aio_pwrite
465
466/*
467 * make our pread/pwrite safe against themselves, but not against
468 * normal read/write by using a mutex. slows down execution a lot,
469 * but that's your problem, not mine.
470 */
471static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
472
473static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
474{ 1015{
475 ssize_t res; 1016 ts->tv_sec = value;
476 off_t ooffset; 1017 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
477
478 pthread_mutex_lock (&preadwritelock);
479 ooffset = lseek (fd, 0, SEEK_CUR);
480 lseek (fd, offset, SEEK_SET);
481 res = read (fd, buf, count);
482 lseek (fd, ooffset, SEEK_SET);
483 pthread_mutex_unlock (&preadwritelock);
484
485 return res;
486} 1018}
487 1019
488static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1020static NV
1021ts_get (const struct timespec *ts)
489{ 1022{
490 ssize_t res; 1023 return ts->tv_sec + ts->tv_nsec * 1e-9;
491 off_t ooffset;
492
493 pthread_mutex_lock (&preadwritelock);
494 ooffset = lseek (fd, 0, SEEK_CUR);
495 lseek (fd, offset, SEEK_SET);
496 res = write (fd, buf, count);
497 lseek (fd, offset, SEEK_SET);
498 pthread_mutex_unlock (&preadwritelock);
499
500 return res;
501} 1024}
502#endif
503 1025
504#if !HAVE_FDATASYNC 1026/*****************************************************************************/
505# define fdatasync fsync
506#endif
507 1027
508#if !HAVE_READAHEAD 1028XS(boot_IO__AIO) ecb_cold;
509# define readahead aio_readahead
510 1029
511static ssize_t readahead (int fd, off_t offset, size_t count) 1030MODULE = IO::AIO PACKAGE = IO::AIO
512{
513 char readahead_buf[4096];
514 1031
515 while (count > 0) 1032PROTOTYPES: ENABLE
516 {
517 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
518 1033
519 pread (fd, readahead_buf, len, offset); 1034BOOT:
520 offset += len;
521 count -= len;
522 }
523
524 errno = 0;
525}
526#endif
527
528#if !HAVE_READDIR_R
529# define readdir_r aio_readdir_r
530
531static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
532
533static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
534{ 1035{
535 struct dirent *e; 1036 static const struct {
536 int errorno; 1037 const char *name;
1038 IV iv;
1039 } *civ, const_iv[] = {
1040# define const_niv(name, value) { # name, (IV) value },
1041# define const_iv(name) { # name, (IV) name },
1042# define const_eio(name) { # name, (IV) EIO_ ## name },
537 1043
538 pthread_mutex_lock (&readdirlock); 1044 /* you have to re-run ./gendef0 after adding/removing any constants here */
1045 /* the first block can be undef if missing */
1046 const_iv (ENOSYS)
1047 const_iv (EXDEV)
1048 const_iv (EBADR)
539 1049
540 e = readdir (dirp); 1050 /* for lseek */
541 errorno = errno; 1051 const_iv (SEEK_DATA)
1052 const_iv (SEEK_HOLE)
542 1053
543 if (e) 1054 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
544 { 1055 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
545 *res = ent; 1056 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
546 strcpy (ent->d_name, e->d_name); 1057 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
547 } 1058 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
548 else 1059 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
549 *res = 0;
550 1060
551 pthread_mutex_unlock (&readdirlock); 1061 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1062 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1063 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1064 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1065 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
552 1066
553 errno = errorno; 1067 /* the second block will be 0 when missing */
554 return e ? 0 : -1; 1068 const_iv (O_ACCMODE)
555}
556#endif
557 1069
558/* sendfile always needs emulation */ 1070 const_iv (O_RDONLY)
559static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) 1071 const_iv (O_WRONLY)
560{ 1072 const_iv (O_RDWR)
561 ssize_t res; 1073 const_iv (O_CREAT)
1074 const_iv (O_TRUNC)
1075 const_iv (O_EXCL)
1076 const_iv (O_APPEND)
562 1077
563 if (!count) 1078 const_iv (O_ASYNC)
564 return 0; 1079 const_iv (O_DIRECT)
1080 const_iv (O_NOATIME)
565 1081
566#if HAVE_SENDFILE 1082 const_iv (O_CLOEXEC)
567# if __linux 1083 const_iv (O_NOCTTY)
568 res = sendfile (ofd, ifd, &offset, count); 1084 const_iv (O_NOFOLLOW)
1085 const_iv (O_NONBLOCK)
1086 const_iv (O_EXEC)
1087 const_iv (O_SEARCH)
1088 const_iv (O_DIRECTORY)
1089 const_iv (O_DSYNC)
1090 const_iv (O_RSYNC)
1091 const_iv (O_SYNC)
1092 const_iv (O_PATH)
1093 const_iv (O_TMPFILE)
1094 const_iv (O_TTY_INIT)
569 1095
570# elif __freebsd 1096 const_iv (S_IFIFO)
571 /* 1097 const_iv (S_IFCHR)
572 * Of course, the freebsd sendfile is a dire hack with no thoughts 1098 const_iv (S_IFBLK)
573 * wasted on making it similar to other I/O functions. 1099 const_iv (S_IFLNK)
574 */ 1100 const_iv (S_IFREG)
575 { 1101 const_iv (S_IFDIR)
576 off_t sbytes; 1102 const_iv (S_IFWHT)
577 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); 1103 const_iv (S_IFSOCK)
1104 const_iv (S_IFMT)
578 1105
579 if (res < 0 && sbytes) 1106 const_iv (ST_RDONLY)
580 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ 1107 const_iv (ST_NOSUID)
581 res = sbytes; 1108 const_iv (ST_NODEV)
1109 const_iv (ST_NOEXEC)
1110 const_iv (ST_SYNCHRONOUS)
1111 const_iv (ST_MANDLOCK)
1112 const_iv (ST_WRITE)
1113 const_iv (ST_APPEND)
1114 const_iv (ST_IMMUTABLE)
1115 const_iv (ST_NOATIME)
1116 const_iv (ST_NODIRATIME)
1117 const_iv (ST_RELATIME)
1118
1119 const_iv (PROT_NONE)
1120 const_iv (PROT_EXEC)
1121 const_iv (PROT_READ)
1122 const_iv (PROT_WRITE)
1123
1124 const_iv (MAP_PRIVATE)
1125 const_iv (MAP_SHARED)
1126 const_iv (MAP_FIXED)
1127 const_iv (MAP_ANONYMOUS)
1128
1129 /* linuxish */
1130 const_iv (MAP_LOCKED)
1131 const_iv (MAP_NORESERVE)
1132 const_iv (MAP_POPULATE)
1133 const_iv (MAP_NONBLOCK)
1134 const_iv (MAP_GROWSDOWN)
1135 const_iv (MAP_32BIT)
1136 const_iv (MAP_HUGETLB)
1137 const_iv (MAP_STACK)
1138
1139 const_iv (MREMAP_MAYMOVE)
1140 const_iv (MREMAP_FIXED)
1141
1142 const_iv (F_DUPFD_CLOEXEC)
1143
1144 const_iv (MSG_CMSG_CLOEXEC)
1145 const_iv (SOCK_CLOEXEC)
1146
1147 const_iv (F_OFD_GETLK)
1148 const_iv (F_OFD_SETLK)
1149 const_iv (F_OFD_GETLKW)
1150
1151 const_iv (FIFREEZE)
1152 const_iv (FITHAW)
1153 const_iv (FITRIM)
1154 const_iv (FICLONE)
1155 const_iv (FICLONERANGE)
1156 const_iv (FIDEDUPERANGE)
1157
1158 const_iv (FS_IOC_GETFLAGS)
1159 const_iv (FS_IOC_SETFLAGS)
1160 const_iv (FS_IOC_GETVERSION)
1161 const_iv (FS_IOC_SETVERSION)
1162 const_iv (FS_IOC_FIEMAP)
1163 const_iv (FS_IOC_FSGETXATTR)
1164 const_iv (FS_IOC_FSSETXATTR)
1165 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1166 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1167 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1168
1169 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1170
1171 const_iv (FS_SECRM_FL)
1172 const_iv (FS_UNRM_FL)
1173 const_iv (FS_COMPR_FL)
1174 const_iv (FS_SYNC_FL)
1175 const_iv (FS_IMMUTABLE_FL)
1176 const_iv (FS_APPEND_FL)
1177 const_iv (FS_NODUMP_FL)
1178 const_iv (FS_NOATIME_FL)
1179 const_iv (FS_DIRTY_FL)
1180 const_iv (FS_COMPRBLK_FL)
1181 const_iv (FS_NOCOMP_FL)
1182 const_iv (FS_ENCRYPT_FL)
1183 const_iv (FS_BTREE_FL)
1184 const_iv (FS_INDEX_FL)
1185 const_iv (FS_JOURNAL_DATA_FL)
1186 const_iv (FS_NOTAIL_FL)
1187 const_iv (FS_DIRSYNC_FL)
1188 const_iv (FS_TOPDIR_FL)
1189 const_iv (FS_FL_USER_MODIFIABLE)
1190
1191 const_iv (FS_XFLAG_REALTIME)
1192 const_iv (FS_XFLAG_PREALLOC)
1193 const_iv (FS_XFLAG_IMMUTABLE)
1194 const_iv (FS_XFLAG_APPEND)
1195 const_iv (FS_XFLAG_SYNC)
1196 const_iv (FS_XFLAG_NOATIME)
1197 const_iv (FS_XFLAG_NODUMP)
1198 const_iv (FS_XFLAG_RTINHERIT)
1199 const_iv (FS_XFLAG_PROJINHERIT)
1200 const_iv (FS_XFLAG_NOSYMLINKS)
1201 const_iv (FS_XFLAG_EXTSIZE)
1202 const_iv (FS_XFLAG_EXTSZINHERIT)
1203 const_iv (FS_XFLAG_NODEFRAG)
1204 const_iv (FS_XFLAG_FILESTREAM)
1205 const_iv (FS_XFLAG_DAX)
1206 const_iv (FS_XFLAG_HASATTR)
1207
1208 const_iv (FIEMAP_FLAG_SYNC)
1209 const_iv (FIEMAP_FLAG_XATTR)
1210 const_iv (FIEMAP_FLAGS_COMPAT)
1211 const_iv (FIEMAP_EXTENT_LAST)
1212 const_iv (FIEMAP_EXTENT_UNKNOWN)
1213 const_iv (FIEMAP_EXTENT_DELALLOC)
1214 const_iv (FIEMAP_EXTENT_ENCODED)
1215 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1216 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1217 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1218 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1219 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1220 const_iv (FIEMAP_EXTENT_MERGED)
1221 const_iv (FIEMAP_EXTENT_SHARED)
1222
1223 const_iv (SPLICE_F_MOVE)
1224 const_iv (SPLICE_F_NONBLOCK)
1225 const_iv (SPLICE_F_MORE)
1226 const_iv (SPLICE_F_GIFT)
1227
1228 const_iv (EFD_CLOEXEC)
1229 const_iv (EFD_NONBLOCK)
1230 const_iv (EFD_SEMAPHORE)
1231
1232 const_iv (CLOCK_REALTIME)
1233 const_iv (CLOCK_MONOTONIC)
1234 const_iv (CLOCK_BOOTTIME)
1235 const_iv (CLOCK_REALTIME_ALARM)
1236 const_iv (CLOCK_BOOTTIME_ALARM)
1237
1238 const_iv (TFD_NONBLOCK)
1239 const_iv (TFD_CLOEXEC)
1240
1241 const_iv (TFD_TIMER_ABSTIME)
1242 const_iv (TFD_TIMER_CANCEL_ON_SET)
1243
1244 /* these are libeio constants, and are independent of gendef0 */
1245 const_eio (SEEK_SET)
1246 const_eio (SEEK_CUR)
1247 const_eio (SEEK_END)
1248
1249 const_eio (MCL_FUTURE)
1250 const_eio (MCL_CURRENT)
1251
1252 const_eio (MS_ASYNC)
1253 const_eio (MS_INVALIDATE)
1254 const_eio (MS_SYNC)
1255
1256 const_eio (MT_MODIFY)
1257
1258 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1259 const_eio (SYNC_FILE_RANGE_WRITE)
1260 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1261
1262 const_eio (FALLOC_FL_KEEP_SIZE)
1263 const_eio (FALLOC_FL_PUNCH_HOLE)
1264 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1265 const_eio (FALLOC_FL_ZERO_RANGE)
1266 const_eio (FALLOC_FL_INSERT_RANGE)
1267 const_eio (FALLOC_FL_UNSHARE_RANGE)
1268
1269 const_eio (RENAME_NOREPLACE)
1270 const_eio (RENAME_EXCHANGE)
1271 const_eio (RENAME_WHITEOUT)
1272
1273 const_eio (READDIR_DENTS)
1274 const_eio (READDIR_DIRS_FIRST)
1275 const_eio (READDIR_STAT_ORDER)
1276 const_eio (READDIR_FOUND_UNKNOWN)
1277
1278 const_eio (DT_UNKNOWN)
1279 const_eio (DT_FIFO)
1280 const_eio (DT_CHR)
1281 const_eio (DT_DIR)
1282 const_eio (DT_BLK)
1283 const_eio (DT_REG)
1284 const_eio (DT_LNK)
1285 const_eio (DT_SOCK)
1286 const_eio (DT_WHT)
582 } 1287 };
583 1288
584# elif __hpux 1289 aio_stash = gv_stashpv ("IO::AIO" , 1);
585 res = sendfile (ofd, ifd, offset, count, 0, 0); 1290 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1291 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1292 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
586 1293
587# elif __solaris 1294 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
588 { 1295 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
589 struct sendfilevec vec;
590 size_t sbytes;
591 1296
592 vec.sfv_fd = ifd; 1297 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
593 vec.sfv_flag = 0;
594 vec.sfv_off = offset;
595 vec.sfv_len = count;
596 1298
597 res = sendfilev (ofd, &vec, 1, &sbytes); 1299 reinit ();
1300}
598 1301
599 if (res < 0 && sbytes) 1302void
1303reinit ()
1304 PROTOTYPE:
1305
1306void
1307max_poll_reqs (unsigned int nreqs)
1308 PROTOTYPE: $
1309 CODE:
1310 eio_set_max_poll_reqs (nreqs);
1311
1312void
1313max_poll_time (double nseconds)
1314 PROTOTYPE: $
1315 CODE:
1316 eio_set_max_poll_time (nseconds);
1317
1318void
1319min_parallel (unsigned int nthreads)
1320 PROTOTYPE: $
1321 CODE:
1322 eio_set_min_parallel (nthreads);
1323
1324void
1325max_parallel (unsigned int nthreads)
1326 PROTOTYPE: $
1327 CODE:
1328 eio_set_max_parallel (nthreads);
1329
1330void
1331max_idle (unsigned int nthreads)
1332 PROTOTYPE: $
1333 CODE:
1334 eio_set_max_idle (nthreads);
1335
1336void
1337idle_timeout (unsigned int seconds)
1338 PROTOTYPE: $
1339 CODE:
1340 eio_set_idle_timeout (seconds);
1341
1342void
1343max_outstanding (unsigned int maxreqs)
1344 PROTOTYPE: $
1345 CODE:
1346 max_outstanding = maxreqs;
1347
1348void
1349aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1350 PPCODE:
1351{
1352 dREQ;
1353
1354 req->type = EIO_WD_OPEN;
1355 req_set_path1 (req, pathname);
1356
1357 REQ_SEND;
1358}
1359
1360void
1361aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1362 PPCODE:
1363{
1364 dREQ;
1365
1366 req->type = EIO_OPEN;
1367 req_set_path1 (req, pathname);
1368 req->int1 = flags;
1369 req->int2 = mode;
1370
1371 REQ_SEND;
1372}
1373
1374void
1375aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1376 ALIAS:
1377 aio_fsync = EIO_FSYNC
1378 aio_fdatasync = EIO_FDATASYNC
1379 aio_syncfs = EIO_SYNCFS
1380 PPCODE:
1381{
1382 int fd = s_fileno_croak (fh, 0);
1383 dREQ;
1384
1385 req->type = ix;
1386 req->sv1 = newSVsv (fh);
1387 req->int1 = fd;
1388
1389 REQ_SEND;
1390}
1391
1392void
1393aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1394 PPCODE:
1395{
1396 int fd = s_fileno_croak (fh, 0);
1397 dREQ;
1398
1399 req->type = EIO_SYNC_FILE_RANGE;
1400 req->sv1 = newSVsv (fh);
1401 req->int1 = fd;
1402 req->offs = offset;
600 res = sbytes; 1403 req->size = nbytes;
601 } 1404 req->int2 = flags;
602 1405
603# endif 1406 REQ_SEND;
1407}
1408
1409void
1410aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1411 PPCODE:
1412{
1413 int fd = s_fileno_croak (fh, 0);
1414 dREQ;
1415
1416 req->type = EIO_FALLOCATE;
1417 req->sv1 = newSVsv (fh);
1418 req->int1 = fd;
1419 req->int2 = mode;
1420 req->offs = offset;
1421 req->size = len;
1422
1423 REQ_SEND;
1424}
1425
1426void
1427aio_close (SV *fh, SV *callback = &PL_sv_undef)
1428 PPCODE:
1429{
1430 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1431 int fd = s_fileno_croak (fh, 0);
1432 dREQ;
1433
1434 if (expect_false (close_fd < 0))
1435 {
1436 int pipefd [2];
1437
1438 if (
1439#ifdef _WIN32
1440 _pipe (pipefd, 1, _O_BINARY) < 0
604#else 1441#else
605 res = -1; 1442 pipe (pipefd) < 0
606 errno = ENOSYS; 1443 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
607#endif 1444#endif
608 1445 || close (pipefd [1]) < 0
609 if (res < 0
610 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
611#if __solaris
612 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
613#endif
614 )
615 )
616 {
617 /* emulate sendfile. this is a major pain in the ass */
618 char buf[4096];
619 res = 0;
620
621 while (count)
622 {
623 ssize_t cnt;
624
625 cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
626
627 if (cnt <= 0)
628 { 1446 )
629 if (cnt && !res) res = -1; 1447 abort (); /*D*/
630 break;
631 }
632 1448
633 cnt = write (ofd, buf, cnt); 1449 close_fd = pipefd [0];
634
635 if (cnt <= 0)
636 {
637 if (cnt && !res) res = -1;
638 break;
639 }
640
641 offset += cnt;
642 res += cnt;
643 count -= cnt;
644 }
645 }
646
647 return res;
648}
649
650/* read a full directory */
651static int scandir_ (const char *path, void **namesp)
652{
653 DIR *dirp = opendir (path);
654 union
655 {
656 struct dirent d;
657 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
658 } u;
659 struct dirent *entp;
660 char *name, *names;
661 int memlen = 4096;
662 int memofs = 0;
663 int res = 0;
664 int errorno;
665
666 if (!dirp)
667 return -1;
668
669 names = malloc (memlen);
670
671 for (;;)
672 {
673 errno = 0, readdir_r (dirp, &u.d, &entp);
674
675 if (!entp)
676 break;
677
678 name = entp->d_name;
679
680 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
681 {
682 int len = strlen (name) + 1;
683
684 res++;
685
686 while (memofs + len > memlen)
687 {
688 memlen *= 2;
689 names = realloc (names, memlen);
690 if (!names)
691 break;
692 }
693
694 memcpy (names + memofs, name, len);
695 memofs += len;
696 }
697 }
698
699 errorno = errno;
700 closedir (dirp);
701
702 if (errorno)
703 {
704 free (names);
705 errno = errorno;
706 res = -1;
707 }
708
709 *namesp = (void *)names;
710 return res;
711}
712
713/*****************************************************************************/
714
715static void *aio_proc (void *thr_arg)
716{
717 aio_req req;
718 int type;
719
720 do
721 {
722 pthread_mutex_lock (&reqlock);
723
724 for (;;)
725 {
726 req = reqs;
727
728 if (reqs)
729 {
730 reqs = reqs->next;
731 if (!reqs) reqe = 0;
732 }
733
734 if (req)
735 break;
736
737 pthread_cond_wait (&reqwait, &reqlock);
738 }
739
740 pthread_mutex_unlock (&reqlock);
741
742 errno = 0; /* strictly unnecessary */
743
744 if (!req->cancelled)
745 switch (req->type)
746 {
747 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
748 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
749
750 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
751 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
752
753 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
754 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
755 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
756
757 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
758 case REQ_CLOSE: req->result = close (req->fd); break;
759 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
760 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
761 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
762 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
763 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
764
765 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
766 case REQ_FSYNC: req->result = fsync (req->fd); break;
767 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
768
769 case REQ_SLEEP:
770 {
771 struct timeval tv;
772
773 tv.tv_sec = req->fd;
774 tv.tv_usec = req->fd2;
775
776 req->result = select (0, 0, 0, 0, &tv);
777 }
778
779 case REQ_QUIT:
780 break;
781
782 default:
783 req->result = ENOSYS;
784 break;
785 } 1450 }
786 1451
787 req->errorno = errno; 1452 req->type = EIO_DUP2;
788 1453 req->int1 = close_fd;
789 pthread_mutex_lock (&reslock); 1454 req->sv2 = newSVsv (fh);
790
791 req->next = 0; 1455 req->int2 = fd;
792 1456
793 if (rese) 1457 REQ_SEND;
794 {
795 rese->next = req;
796 rese = req;
797 }
798 else
799 {
800 rese = ress = req;
801
802 /* write a dummy byte to the pipe so fh becomes ready */
803 write (respipe [1], &respipe, 1);
804 }
805
806 pthread_mutex_unlock (&reslock);
807 }
808 while (type != REQ_QUIT);
809
810 return 0;
811} 1458}
812 1459
813/*****************************************************************************/
814
815static void atfork_prepare (void)
816{
817 pthread_mutex_lock (&reqlock);
818 pthread_mutex_lock (&reslock);
819#if !HAVE_PREADWRITE
820 pthread_mutex_lock (&preadwritelock);
821#endif
822#if !HAVE_READDIR_R
823 pthread_mutex_lock (&readdirlock);
824#endif
825}
826
827static void atfork_parent (void)
828{
829#if !HAVE_READDIR_R
830 pthread_mutex_unlock (&readdirlock);
831#endif
832#if !HAVE_PREADWRITE
833 pthread_mutex_unlock (&preadwritelock);
834#endif
835 pthread_mutex_unlock (&reslock);
836 pthread_mutex_unlock (&reqlock);
837}
838
839static void atfork_child (void)
840{
841 aio_req prv;
842
843 started = 0;
844
845 while (reqs)
846 {
847 prv = reqs;
848 reqs = prv->next;
849 req_free (prv);
850 }
851
852 reqs = reqe = 0;
853
854 while (ress)
855 {
856 prv = ress;
857 ress = prv->next;
858 req_free (prv);
859 }
860
861 ress = rese = 0;
862
863 close (respipe [0]);
864 close (respipe [1]);
865 create_pipe ();
866
867 atfork_parent ();
868}
869
870#define dREQ \
871 aio_req req; \
872 \
873 if (SvOK (callback) && !SvROK (callback)) \
874 croak ("callback must be undef or of reference type"); \
875 \
876 Newz (0, req, 1, aio_cb); \
877 if (!req) \
878 croak ("out of memory during aio_req allocation"); \
879 \
880 req->callback = newSVsv (callback)
881
882#define REQ_SEND \
883 req_send (req); \
884 \
885 if (GIMME_V != G_VOID) \
886 XPUSHs (req_sv (req, AIO_REQ_KLASS));
887
888MODULE = IO::AIO PACKAGE = IO::AIO
889
890PROTOTYPES: ENABLE
891
892BOOT:
893{
894 HV *stash = gv_stashpv ("IO::AIO", 1);
895 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
896 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
897 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
898
899 create_pipe ();
900 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
901}
902
903void 1460void
904min_parallel (nthreads) 1461aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
905 int nthreads
906 PROTOTYPE: $
907
908void
909max_parallel (nthreads)
910 int nthreads
911 PROTOTYPE: $
912
913int
914max_outstanding (nreqs)
915 int nreqs
916 PROTOTYPE: $
917 CODE: 1462 PPCODE:
918 RETVAL = max_outstanding;
919 max_outstanding = nreqs;
920
921void
922aio_open (pathname,flags,mode,callback=&PL_sv_undef)
923 SV * pathname
924 int flags
925 int mode
926 SV * callback
927 PROTOTYPE: $$$;$
928 PPCODE:
929{ 1463{
1464 int fd = s_fileno_croak (fh, 0);
930 dREQ; 1465 dREQ;
931 1466
932 req->type = REQ_OPEN; 1467 req->type = EIO_SEEK;
933 req->data = newSVsv (pathname); 1468 req->sv1 = newSVsv (fh);
934 req->dataptr = SvPVbyte_nolen (req->data); 1469 req->int1 = fd;
935 req->fd = flags; 1470 req->offs = SvVAL64 (offset);
936 req->mode = mode; 1471 req->int2 = whence;
937 1472
938 REQ_SEND; 1473 REQ_SEND;
939} 1474}
940 1475
941void 1476void
942aio_close (fh,callback=&PL_sv_undef) 1477aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
943 SV * fh
944 SV * callback
945 PROTOTYPE: $;$
946 ALIAS: 1478 ALIAS:
947 aio_close = REQ_CLOSE
948 aio_fsync = REQ_FSYNC
949 aio_fdatasync = REQ_FDATASYNC
950 PPCODE:
951{
952 dREQ;
953
954 req->type = ix;
955 req->fh = newSVsv (fh);
956 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
957
958 REQ_SEND (req);
959}
960
961void
962aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
963 SV * fh
964 UV offset
965 UV length
966 SV * data
967 UV dataoffset
968 SV * callback
969 ALIAS:
970 aio_read = REQ_READ 1479 aio_read = EIO_READ
971 aio_write = REQ_WRITE 1480 aio_write = EIO_WRITE
972 PROTOTYPE: $$$$$;$
973 PPCODE: 1481 PPCODE:
974{ 1482{
975 aio_req req;
976 STRLEN svlen; 1483 STRLEN svlen;
1484 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
977 char *svptr = SvPVbyte (data, svlen); 1485 char *svptr = SvPVbyte (data, svlen);
978 1486 UV len = SvUV (length);
979 SvUPGRADE (data, SVt_PV);
980 SvPOK_on (data);
981 1487
982 if (dataoffset < 0) 1488 if (dataoffset < 0)
983 dataoffset += svlen; 1489 dataoffset += svlen;
984 1490
985 if (dataoffset < 0 || dataoffset > svlen) 1491 if (dataoffset < 0 || dataoffset > svlen)
986 croak ("data offset outside of string"); 1492 croak ("dataoffset outside of data scalar");
987 1493
988 if (ix == REQ_WRITE) 1494 if (ix == EIO_WRITE)
989 { 1495 {
990 /* write: check length and adjust. */ 1496 /* write: check length and adjust. */
991 if (length < 0 || length + dataoffset > svlen) 1497 if (!SvOK (length) || len + dataoffset > svlen)
992 length = svlen - dataoffset; 1498 len = svlen - dataoffset;
993 } 1499 }
994 else 1500 else
995 { 1501 {
996 /* read: grow scalar as necessary */ 1502 /* read: check type and grow scalar as necessary */
1503 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
997 svptr = SvGROW (data, length + dataoffset); 1504 svptr = sv_grow (data, len + dataoffset + 1);
1505 else if (SvCUR (data) < len + dataoffset)
1506 croak ("length + dataoffset outside of scalar, and cannot grow");
998 } 1507 }
999
1000 if (length < 0)
1001 croak ("length must not be negative");
1002 1508
1003 { 1509 {
1004 dREQ; 1510 dREQ;
1005 1511
1006 req->type = ix; 1512 req->type = ix;
1007 req->fh = newSVsv (fh); 1513 req->sv1 = newSVsv (fh);
1008 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1514 req->int1 = fd;
1009 : IoOFP (sv_2io (fh))); 1515 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1010 req->offset = offset; 1516 req->size = len;
1011 req->length = length;
1012 req->data = SvREFCNT_inc (data); 1517 req->sv2 = SvREFCNT_inc (data);
1013 req->dataptr = (char *)svptr + dataoffset; 1518 req->ptr2 = (char *)svptr + dataoffset;
1519 req->stroffset = dataoffset;
1014 1520
1015 if (!SvREADONLY (data)) 1521 if (!SvREADONLY (data))
1016 { 1522 {
1017 SvREADONLY_on (data); 1523 SvREADONLY_on (data);
1018 req->data2ptr = (void *)data; 1524 req->flags |= FLAG_SV2_RO_OFF;
1019 } 1525 }
1020 1526
1021 REQ_SEND; 1527 REQ_SEND;
1022 } 1528 }
1023} 1529}
1024 1530
1025void 1531void
1026aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1532aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1027 SV * out_fh 1533 ALIAS:
1028 SV * in_fh 1534 aio_ioctl = EIO_IOCTL
1029 UV in_offset 1535 aio_fcntl = EIO_FCNTL
1030 UV length
1031 SV * callback
1032 PROTOTYPE: $$$$;$
1033 PPCODE: 1536 PPCODE:
1034{ 1537{
1035 dREQ; 1538 int fd = s_fileno_croak (fh, 0);
1539 char *svptr;
1036 1540
1037 req->type = REQ_SENDFILE; 1541 if (SvPOK (arg) || !SvNIOK (arg))
1038 req->fh = newSVsv (out_fh);
1039 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1040 req->fh2 = newSVsv (in_fh);
1041 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1042 req->offset = in_offset;
1043 req->length = length;
1044
1045 REQ_SEND;
1046}
1047
1048void
1049aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1050 SV * fh
1051 UV offset
1052 IV length
1053 SV * callback
1054 PROTOTYPE: $$$;$
1055 PPCODE:
1056{
1057 dREQ;
1058
1059 req->type = REQ_READAHEAD;
1060 req->fh = newSVsv (fh);
1061 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1062 req->offset = offset;
1063 req->length = length;
1064
1065 REQ_SEND;
1066}
1067
1068void
1069aio_stat (fh_or_path,callback=&PL_sv_undef)
1070 SV * fh_or_path
1071 SV * callback
1072 ALIAS:
1073 aio_stat = REQ_STAT
1074 aio_lstat = REQ_LSTAT
1075 PPCODE:
1076{
1077 dREQ;
1078
1079 New (0, req->statdata, 1, Stat_t);
1080 if (!req->statdata)
1081 { 1542 {
1082 req_free (req); 1543 STRLEN svlen;
1083 croak ("out of memory during aio_req->statdata allocation"); 1544 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1084 } 1545#ifdef IOCPARM_LEN
1546 STRLEN need = IOCPARM_LEN (request);
1547#else
1548 STRLEN need = 256;
1549#endif
1085 1550
1086 if (SvPOK (fh_or_path)) 1551 if (svlen < need)
1087 { 1552 svptr = SvGROW (arg, need);
1088 req->type = ix;
1089 req->data = newSVsv (fh_or_path);
1090 req->dataptr = SvPVbyte_nolen (req->data);
1091 } 1553 }
1092 else 1554 else
1555 svptr = (char *)SvIV (arg);
1556
1093 { 1557 {
1558 dREQ;
1559
1094 req->type = REQ_FSTAT; 1560 req->type = ix;
1095 req->fh = newSVsv (fh_or_path); 1561 req->sv1 = newSVsv (fh);
1096 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1562 req->int1 = fd;
1563 req->int2 = (long)request;
1564 req->sv2 = SvREFCNT_inc (arg);
1565 req->ptr2 = svptr;
1566
1567 REQ_SEND;
1097 } 1568 }
1569}
1570
1571void
1572aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1573 ALIAS:
1574 aio_readlink = EIO_READLINK
1575 aio_realpath = EIO_REALPATH
1576 PPCODE:
1577{
1578 dREQ;
1579
1580 req->type = ix;
1581 req_set_path1 (req, pathname);
1098 1582
1099 REQ_SEND; 1583 REQ_SEND;
1100} 1584}
1101 1585
1102void 1586void
1103aio_unlink (pathname,callback=&PL_sv_undef) 1587aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1104 SV * pathname 1588 PPCODE:
1105 SV * callback 1589{
1590 int ifd = s_fileno_croak (in_fh , 0);
1591 int ofd = s_fileno_croak (out_fh, 1);
1592 dREQ;
1593
1594 req->type = EIO_SENDFILE;
1595 req->sv1 = newSVsv (out_fh);
1596 req->int1 = ofd;
1597 req->sv2 = newSVsv (in_fh);
1598 req->int2 = ifd;
1599 req->offs = in_offset;
1600 req->size = length;
1601
1602 REQ_SEND;
1603}
1604
1605void
1606aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1607 PPCODE:
1608{
1609 int fd = s_fileno_croak (fh, 0);
1610 dREQ;
1611
1612 req->type = EIO_READAHEAD;
1613 req->sv1 = newSVsv (fh);
1614 req->int1 = fd;
1615 req->offs = offset;
1616 req->size = length;
1617
1618 REQ_SEND;
1619}
1620
1621void
1622aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1106 ALIAS: 1623 ALIAS:
1624 aio_stat = EIO_STAT
1625 aio_lstat = EIO_LSTAT
1626 aio_statvfs = EIO_STATVFS
1627 PPCODE:
1628{
1629 dREQ;
1630
1631 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1632
1633 REQ_SEND;
1634}
1635
1636void
1637st_xtime ()
1638 ALIAS:
1639 st_atime = 1
1640 st_mtime = 2
1641 st_ctime = 4
1642 st_xtime = 7
1643 PPCODE:
1644 EXTEND (SP, 3);
1645 if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1646 if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1647 if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1648
1649void
1650st_xtimensec ()
1651 ALIAS:
1652 st_atimensec = 1
1653 st_mtimensec = 2
1654 st_ctimensec = 4
1655 st_xtimensec = 7
1656 PPCODE:
1657 EXTEND (SP, 3);
1658 if (ix & 1) PUSHs (newSViv (ATIMENSEC));
1659 if (ix & 2) PUSHs (newSViv (MTIMENSEC));
1660 if (ix & 4) PUSHs (newSViv (CTIMENSEC));
1661
1662UV
1663major (UV dev)
1664 ALIAS:
1665 minor = 1
1666 CODE:
1667 RETVAL = ix ? minor (dev) : major (dev);
1668 OUTPUT:
1669 RETVAL
1670
1671UV
1672makedev (UV maj, UV min)
1673 CODE:
1674 RETVAL = makedev (maj, min);
1675 OUTPUT:
1676 RETVAL
1677
1678void
1679aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1680 PPCODE:
1681{
1682 dREQ;
1683
1684 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1685 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1686 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1687
1688 REQ_SEND;
1689}
1690
1691void
1692aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1693 PPCODE:
1694{
1695 dREQ;
1696
1697 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1698 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1699
1700 REQ_SEND;
1701}
1702
1703void
1704aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1705 PPCODE:
1706{
1707 dREQ;
1708
1709 req->int2 = mode;
1710 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1711
1712 REQ_SEND;
1713}
1714
1715void
1716aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1717 PPCODE:
1718{
1719 dREQ;
1720
1721 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1722 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1723 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1724
1725 REQ_SEND;
1726}
1727
1728void
1729aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1730 PPCODE:
1731{
1732 dREQ;
1733
1734 req->type = EIO_READDIR;
1735 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1736
1737 if (flags & EIO_READDIR_DENTS)
1738 req->int1 |= EIO_READDIR_CUSTOM2;
1739
1740 req_set_path1 (req, pathname);
1741
1742 REQ_SEND;
1743}
1744
1745void
1746aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1747 PPCODE:
1748{
1749 dREQ;
1750
1751 req->type = EIO_MKDIR;
1752 req->int2 = mode;
1753 req_set_path1 (req, pathname);
1754
1755 REQ_SEND;
1756}
1757
1758void
1759aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1760 ALIAS:
1107 aio_unlink = REQ_UNLINK 1761 aio_unlink = EIO_UNLINK
1108 aio_rmdir = REQ_RMDIR 1762 aio_rmdir = EIO_RMDIR
1109 aio_readdir = REQ_READDIR 1763 aio_readdir = EIO_READDIR
1110 PPCODE: 1764 PPCODE:
1111{ 1765{
1112 dREQ; 1766 dREQ;
1113 1767
1114 req->type = ix; 1768 req->type = ix;
1115 req->data = newSVsv (pathname); 1769 req_set_path1 (req, pathname);
1116 req->dataptr = SvPVbyte_nolen (req->data); 1770
1117
1118 REQ_SEND; 1771 REQ_SEND;
1119} 1772}
1120 1773
1121void 1774void
1122aio_link (oldpath,newpath,callback=&PL_sv_undef) 1775aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1123 SV * oldpath
1124 SV * newpath
1125 SV * callback
1126 ALIAS: 1776 ALIAS:
1127 aio_link = REQ_LINK 1777 aio_link = EIO_LINK
1128 aio_symlink = REQ_SYMLINK 1778 aio_symlink = EIO_SYMLINK
1129 aio_rename = REQ_RENAME 1779 aio_rename = EIO_RENAME
1130 PPCODE: 1780 PPCODE:
1131{ 1781{
1782 eio_wd wd2 = 0;
1132 dREQ; 1783 dREQ;
1133 1784
1134 req->type = ix; 1785 req->type = ix;
1135 req->fh = newSVsv (oldpath); 1786 req_set_path1 (req, oldpath);
1136 req->data2ptr = SvPVbyte_nolen (req->fh); 1787 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1137 req->data = newSVsv (newpath); 1788 req->int3 = (long)wd2;
1138 req->dataptr = SvPVbyte_nolen (req->data);
1139 1789
1140 REQ_SEND; 1790 REQ_SEND;
1141} 1791}
1142 1792
1143void 1793void
1144aio_sleep (delay,callback=&PL_sv_undef) 1794aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1145 double delay
1146 SV * callback
1147 PPCODE: 1795 PPCODE:
1148{ 1796{
1797 eio_wd wd2 = 0;
1149 dREQ; 1798 dREQ;
1150 1799
1151 req->type = REQ_SLEEP; 1800 req->type = EIO_RENAME;
1152 req->fd = delay < 0. ? 0 : delay; 1801 req_set_path1 (req, oldpath);
1153 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1802 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1154 1803 req->int2 = flags;
1804 req->int3 = (long)wd2;
1805
1155 REQ_SEND; 1806 REQ_SEND;
1156} 1807}
1157 1808
1158void 1809void
1159aio_group (callback=&PL_sv_undef) 1810aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1160 SV * callback 1811 PPCODE:
1161 PROTOTYPE: ;$ 1812{
1813 dREQ;
1814
1815 req->type = EIO_MKNOD;
1816 req->int2 = (mode_t)mode;
1817 req->offs = dev;
1818 req_set_path1 (req, pathname);
1819
1820 REQ_SEND;
1821}
1822
1823void
1824aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1825 ALIAS:
1826 aio_mtouch = EIO_MTOUCH
1827 aio_msync = EIO_MSYNC
1162 PPCODE: 1828 PPCODE:
1163{ 1829{
1830 STRLEN svlen;
1831 char *svptr = SvPVbyte (data, svlen);
1832 UV len = SvUV (length);
1833
1834 if (flags < 0)
1835 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1836
1837 if (offset < 0)
1838 offset += svlen;
1839
1840 if (offset < 0 || offset > svlen)
1841 croak ("offset outside of scalar");
1842
1843 if (!SvOK (length) || len + offset > svlen)
1844 len = svlen - offset;
1845
1846 {
1847 dREQ;
1848
1849 req->type = ix;
1850 req->sv2 = SvREFCNT_inc (data);
1851 req->ptr2 = (char *)svptr + offset;
1852 req->size = len;
1853 req->int1 = flags;
1854
1855 REQ_SEND;
1856 }
1857}
1858
1859void
1860aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1861 PPCODE:
1862{
1863 STRLEN svlen;
1864 char *svptr = SvPVbyte (data, svlen);
1865 UV len = SvUV (length);
1866
1867 if (offset < 0)
1868 offset += svlen;
1869
1870 if (offset < 0 || offset > svlen)
1871 croak ("offset outside of scalar");
1872
1873 if (!SvOK (length) || len + offset > svlen)
1874 len = svlen - offset;
1875
1876 {
1877 dREQ;
1878
1879 req->type = EIO_MLOCK;
1880 req->sv2 = SvREFCNT_inc (data);
1881 req->ptr2 = (char *)svptr + offset;
1882 req->size = len;
1883
1884 REQ_SEND;
1885 }
1886}
1887
1888void
1889aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1890 PPCODE:
1891{
1892 dREQ;
1893
1894 req->type = EIO_MLOCKALL;
1895 req->int1 = flags;
1896
1897 REQ_SEND;
1898}
1899
1900void
1901aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1902 PPCODE:
1903{
1904 int fd = s_fileno_croak (fh, 0);
1164 dREQ; 1905 dREQ;
1906
1907 req->type = EIO_CUSTOM;
1908 req->sv1 = newSVsv (fh);
1909 req->int1 = fd;
1910
1911 req->feed = fiemap;
1912#if HAVE_FIEMAP
1913 /* keep our fingers crossed that the next two types are 64 bit */
1914 req->offs = start;
1915 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1916 req->int2 = flags;
1917 req->int3 = SvOK (count) ? SvIV (count) : -1;
1918#endif
1919
1920 REQ_SEND;
1921}
1922
1923void
1924aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1925 PPCODE:
1926{
1927 char *svptr = 0;
1928
1929 sv_clear_foreign (data);
1930
1931 if (length) /* known length, directly read into scalar */
1932 {
1933 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1934 svptr = sv_grow (data, length + 1);
1935 else if (SvCUR (data) < length)
1936 croak ("length outside of scalar, and cannot grow");
1937 else
1938 svptr = SvPVbyte_nolen (data);
1939 }
1940
1941 {
1942 dREQ;
1943
1944 req->type = EIO_SLURP;
1945 req_set_path1 (req, pathname);
1946 req->offs = offset;
1947 req->size = length;
1948 req->sv2 = SvREFCNT_inc (data);
1949 req->ptr2 = svptr;
1950
1951 if (!SvREADONLY (data))
1952 {
1953 SvREADONLY_on (data);
1954 req->flags |= FLAG_SV2_RO_OFF;
1955 }
1956
1957 REQ_SEND;
1958 }
1959}
1960
1961void
1962aio_busy (double delay, SV *callback = &PL_sv_undef)
1963 PPCODE:
1964{
1965 dREQ;
1966
1967 req->type = EIO_BUSY;
1968 req->nv1 = delay < 0. ? 0. : delay;
1969
1970 REQ_SEND;
1971}
1972
1973void
1974aio_group (SV *callback = &PL_sv_undef)
1975 PPCODE:
1976{
1977 dREQ;
1978
1165 req->type = REQ_GROUP; 1979 req->type = EIO_GROUP;
1166 req->grp_next = req;
1167 req->grp_prev = req;
1168 1980
1981 PUTBACK;
1169 req_send (req); 1982 req_submit (req);
1983 SPAGAIN;
1984
1170 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1985 XPUSHs (req_sv (req, aio_grp_stash));
1171} 1986}
1987
1988void
1989aio_nop (SV *callback = &PL_sv_undef)
1990 ALIAS:
1991 aio_nop = EIO_NOP
1992 aio_sync = EIO_SYNC
1993 PPCODE:
1994{
1995 dREQ;
1996
1997 req->type = ix;
1998
1999 REQ_SEND;
2000}
2001
2002int
2003aioreq_pri (int pri = NO_INIT)
2004 CODE:
2005 RETVAL = next_pri;
2006 if (items > 0)
2007 {
2008 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
2009 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
2010 next_pri = pri;
2011 }
2012 OUTPUT:
2013 RETVAL
2014
2015void
2016aioreq_nice (int nice = 0)
2017 CODE:
2018 nice = next_pri - nice;
2019 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
2020 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
2021 next_pri = nice;
1172 2022
1173void 2023void
1174flush () 2024flush ()
1175 PROTOTYPE:
1176 CODE: 2025 CODE:
1177 while (nreqs) 2026 while (eio_nreqs ())
1178 { 2027 {
1179 poll_wait (); 2028 poll_wait ();
1180 poll_cb (); 2029 poll_cb ();
1181 } 2030 }
1182 2031
1183void 2032int
1184poll() 2033poll ()
1185 PROTOTYPE:
1186 CODE: 2034 CODE:
1187 if (nreqs)
1188 {
1189 poll_wait (); 2035 poll_wait ();
1190 poll_cb (); 2036 RETVAL = poll_cb ();
1191 }
1192
1193int
1194poll_fileno()
1195 PROTOTYPE:
1196 CODE:
1197 RETVAL = respipe [0];
1198 OUTPUT: 2037 OUTPUT:
1199 RETVAL 2038 RETVAL
1200 2039
1201int 2040int
2041poll_fileno ()
2042 CODE:
2043 RETVAL = s_epipe_fd (&respipe);
2044 OUTPUT:
2045 RETVAL
2046
2047int
1202poll_cb(...) 2048poll_cb (...)
1203 PROTOTYPE: 2049 PROTOTYPE:
1204 CODE: 2050 CODE:
1205 RETVAL = poll_cb (); 2051 RETVAL = poll_cb ();
1206 OUTPUT: 2052 OUTPUT:
1207 RETVAL 2053 RETVAL
1208 2054
1209void 2055void
1210poll_wait() 2056poll_wait ()
1211 PROTOTYPE:
1212 CODE: 2057 CODE:
1213 if (nreqs)
1214 poll_wait (); 2058 poll_wait ();
1215 2059
1216int 2060int
1217nreqs() 2061nreqs ()
1218 PROTOTYPE:
1219 CODE: 2062 CODE:
1220 RETVAL = nreqs; 2063 RETVAL = eio_nreqs ();
1221 OUTPUT: 2064 OUTPUT:
1222 RETVAL 2065 RETVAL
1223 2066
2067int
2068nready ()
2069 CODE:
2070 RETVAL = eio_nready ();
2071 OUTPUT:
2072 RETVAL
2073
2074int
2075npending ()
2076 CODE:
2077 RETVAL = eio_npending ();
2078 OUTPUT:
2079 RETVAL
2080
2081int
2082nthreads ()
2083 CODE:
2084 RETVAL = eio_nthreads ();
2085 OUTPUT:
2086 RETVAL
2087
2088int
2089fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2090 CODE:
2091 RETVAL = posix_fadvise (fh, offset, length, advice);
2092 OUTPUT:
2093 RETVAL
2094
2095IV
2096sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2097 CODE:
2098 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2099 OUTPUT:
2100 RETVAL
2101
2102void
2103mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2104 PPCODE:
2105 sv_clear_foreign (scalar);
2106{
2107 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2108 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2109 if (addr == (void *)-1)
2110 XSRETURN_NO;
2111
2112 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2113
2114 if (!(prot & PROT_WRITE))
2115 SvREADONLY_on (scalar);
2116
2117 XSRETURN_YES;
2118}
2119
2120void
2121munmap (SV *scalar)
2122 CODE:
2123 sv_clear_foreign (scalar);
2124
2125SV *
2126mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2127 CODE:
2128{
2129 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2130 void *new;
2131
2132 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2133 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2134
2135 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2136
2137 RETVAL = &PL_sv_no;
2138
2139 if (new != (void *)-1)
2140 {
2141 RETVAL = new == (void *)mg->mg_ptr
2142 ? newSVpvn ("0 but true", 10)
2143 : &PL_sv_yes;
2144
2145 mg->mg_ptr = (char *)new;
2146 mg->mg_obj = (SV *)new_length;
2147
2148 SvPVX (scalar) = mg->mg_ptr;
2149 SvCUR_set (scalar, new_length);
2150 }
2151}
2152 OUTPUT:
2153 RETVAL
2154
2155int
2156madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2157 ALIAS:
2158 mprotect = 1
2159 CODE:
2160{
2161 STRLEN svlen;
2162 void *addr = SvPVbyte (scalar, svlen);
2163 STRLEN len = SvUV (length);
2164
2165 if (offset < 0)
2166 offset += svlen;
2167
2168 if (offset < 0 || offset > svlen)
2169 croak ("offset outside of scalar");
2170
2171 if (!SvOK (length) || len + offset > svlen)
2172 len = svlen - offset;
2173
2174 addr = (void *)(((intptr_t)addr) + offset);
2175 eio_page_align (&addr, &len);
2176
2177 switch (ix)
2178 {
2179 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2180 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2181 }
2182}
2183 OUTPUT:
2184 RETVAL
2185
2186int
2187munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2188 CODE:
2189{
2190 STRLEN svlen;
2191 void *addr = SvPVbyte (scalar, svlen);
2192 size_t len = SvUV (length);
2193
2194 if (offset < 0)
2195 offset += svlen;
2196
2197 if (offset < 0 || offset > svlen)
2198 croak ("offset outside of scalar");
2199
2200 if (!SvOK (length) || len + offset > svlen)
2201 len = svlen - offset;
2202
2203 addr = (void *)(((intptr_t)addr) + offset);
2204 eio_page_align (&addr, &len);
2205#if _POSIX_MEMLOCK_RANGE
2206 RETVAL = munlock (addr, len);
2207#else
2208 RETVAL = EIO_ENOSYS ();
2209#endif
2210}
2211 OUTPUT:
2212 RETVAL
2213
2214int
2215munlockall ()
2216 CODE:
2217#if _POSIX_MEMLOCK
2218 munlockall ();
2219#else
2220 RETVAL = EIO_ENOSYS ();
2221#endif
2222 OUTPUT:
2223 RETVAL
2224
2225int
2226splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2227 CODE:
2228{
2229#if HAVE_LINUX_SPLICE
2230 loff_t off_in_, off_out_;
2231 RETVAL = splice (
2232 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2233 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2234 length, flags
2235 );
2236#else
2237 RETVAL = EIO_ENOSYS ();
2238#endif
2239}
2240 OUTPUT:
2241 RETVAL
2242
2243int
2244tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2245 CODE:
2246#if HAVE_LINUX_SPLICE
2247 RETVAL = tee (rfh, wfh, length, flags);
2248#else
2249 RETVAL = EIO_ENOSYS ();
2250#endif
2251 OUTPUT:
2252 RETVAL
2253
2254int
2255pipesize (aio_rfd rfh, int new_size = -1)
2256 PROTOTYPE: $;$
2257 CODE:
2258#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2259 if (new_size >= 0)
2260 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2261 else
2262 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2263#else
2264 errno = ENOSYS;
2265 RETVAL = -1;
2266#endif
2267 OUTPUT:
2268 RETVAL
2269
2270void
2271pipe2 (int flags = 0)
2272 PROTOTYPE: ;$
2273 PPCODE:
2274{
2275 int fd[2];
2276 int res;
2277
2278 if (flags)
2279#if HAVE_PIPE2
2280 res = pipe2 (fd, flags);
2281#else
2282 res = (errno = ENOSYS, -1);
2283#endif
2284 else
2285 res = pipe (fd);
2286
2287 if (!res)
2288 {
2289 EXTEND (SP, 2);
2290 PUSHs (newmortalFH (fd[0], O_RDONLY));
2291 PUSHs (newmortalFH (fd[1], O_WRONLY));
2292 }
2293}
2294
2295void
2296eventfd (unsigned int initval = 0, int flags = 0)
2297 PPCODE:
2298{
2299 int fd;
2300#if HAVE_EVENTFD
2301 fd = eventfd (initval, flags);
2302#else
2303 fd = (errno = ENOSYS, -1);
2304#endif
2305
2306 XPUSHs (newmortalFH (fd, O_RDWR));
2307}
2308
2309void
2310timerfd_create (int clockid, int flags = 0)
2311 PPCODE:
2312{
2313 int fd;
2314#if HAVE_TIMERFD
2315 fd = timerfd_create (clockid, flags);
2316#else
2317 fd = (errno = ENOSYS, -1);
2318#endif
2319
2320 XPUSHs (newmortalFH (fd, O_RDWR));
2321}
2322
2323void
2324timerfd_settime (SV *fh, int flags, NV interval, NV value)
2325 PPCODE:
2326{
2327 int fd = s_fileno_croak (fh, 0);
2328#if HAVE_TIMERFD
2329 int res;
2330 struct itimerspec its, ots;
2331
2332 ts_set (&its.it_interval, interval);
2333 ts_set (&its.it_value , value);
2334 res = timerfd_settime (fd, flags, &its, &ots);
2335
2336 if (!res)
2337 {
2338 EXTEND (SP, 2);
2339 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2340 PUSHs (newSVnv (ts_get (&ots.it_value)));
2341 }
2342#else
2343 errno = ENOSYS;
2344#endif
2345}
2346
2347void
2348timerfd_gettime (SV *fh)
2349 PPCODE:
2350{
2351 int fd = s_fileno_croak (fh, 0);
2352#if HAVE_TIMERFD
2353 int res;
2354 struct itimerspec ots;
2355 res = timerfd_gettime (fd, &ots);
2356
2357 if (!res)
2358 {
2359 EXTEND (SP, 2);
2360 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2361 PUSHs (newSVnv (ts_get (&ots.it_value)));
2362 }
2363#else
2364 errno = ENOSYS;
2365#endif
2366}
2367
2368UV
2369get_fdlimit ()
2370 CODE:
2371#if HAVE_RLIMITS
2372 struct rlimit rl;
2373 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2374 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2375#endif
2376 XSRETURN_UNDEF;
2377 OUTPUT:
2378 RETVAL
2379
2380void
2381min_fdlimit (UV limit = 0x7fffffffU)
2382 CODE:
2383{
2384#if HAVE_RLIMITS
2385 struct rlimit rl;
2386 rlim_t orig_rlim_max;
2387 UV bit;
2388
2389 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2390 goto fail;
2391
2392 if (rl.rlim_cur == RLIM_INFINITY)
2393 XSRETURN_YES;
2394
2395 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2396
2397 if (rl.rlim_cur < limit)
2398 {
2399 rl.rlim_cur = limit;
2400
2401 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2402 rl.rlim_max = rl.rlim_cur;
2403 }
2404
2405 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2406 XSRETURN_YES;
2407
2408 if (errno == EPERM)
2409 {
2410 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2411 /* our limit overflows a system-wide limit */
2412 /* try an adaptive algorithm, but do not lower the hardlimit */
2413 rl.rlim_max = 0;
2414 for (bit = 0x40000000U; bit; bit >>= 1)
2415 {
2416 rl.rlim_max |= bit;
2417 rl.rlim_cur = rl.rlim_max;
2418
2419 /* nevr decrease the hard limit */
2420 if (rl.rlim_max < orig_rlim_max)
2421 break;
2422
2423 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2424 rl.rlim_max &= ~bit; /* too high, remove bit again */
2425 }
2426
2427 /* now, raise the soft limit to the max permitted */
2428 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2429 {
2430 rl.rlim_cur = rl.rlim_max;
2431 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2432 errno = EPERM;
2433 }
2434 }
2435#endif
2436 fail:
2437 XSRETURN_UNDEF;
2438}
2439
2440void _on_next_submit (SV *cb)
2441 CODE:
2442 SvREFCNT_dec (on_next_submit);
2443 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2444
1224PROTOTYPES: DISABLE 2445PROTOTYPES: DISABLE
1225 2446
2447MODULE = IO::AIO PACKAGE = IO::AIO::WD
2448
2449BOOT:
2450{
2451 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2452 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2453}
2454
2455void
2456DESTROY (SV *self)
2457 CODE:
2458{
2459 aio_wd wd = SvAIO_WD (self);
2460#if HAVE_AT
2461 {
2462 SV *callback = &PL_sv_undef;
2463 dREQ; /* clobbers next_pri :/ */
2464 next_pri = req->pri; /* restore next_pri */
2465 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2466 req->type = EIO_WD_CLOSE;
2467 req->wd = wd;
2468 REQ_SEND;
2469 }
2470#else
2471 eio_wd_close_sync (wd);
2472#endif
2473}
2474
1226MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2475MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1227 2476
1228void 2477void
1229cancel (aio_req_ornot req) 2478cancel (aio_req_ornot req)
1230 PROTOTYPE:
1231 CODE: 2479 CODE:
1232 req_cancel (req); 2480 eio_cancel (req);
2481
2482void
2483cb (aio_req_ornot req, SV *callback = NO_INIT)
2484 PPCODE:
2485{
2486 if (GIMME_V != G_VOID)
2487 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2488
2489 if (items > 1)
2490 {
2491 SV *cb_cv = get_cb (callback);
2492
2493 SvREFCNT_dec (req->callback);
2494 req->callback = SvREFCNT_inc (cb_cv);
2495 }
2496}
1233 2497
1234MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2498MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1235 2499
1236void 2500void
1237add (aio_req grp, ...) 2501add (aio_req grp, ...)
1238 PPCODE: 2502 PPCODE:
1239{ 2503{
1240 int i; 2504 int i;
1241 2505
2506 if (grp->int1 == 2)
2507 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2508
1242 for (i = 1; i < items; ++i ) 2509 for (i = 1; i < items; ++i )
1243 { 2510 {
2511 aio_req req;
2512
1244 if (GIMME_V != G_VOID) 2513 if (GIMME_V != G_VOID)
1245 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2514 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1246 2515
1247 aio_req req = SvAIO_REQ (ST (i)); 2516 req = SvAIO_REQ (ST (i));
1248 2517
1249 if (req) 2518 if (req)
1250 { 2519 eio_grp_add (grp, req);
1251 req->grp_prev = grp;
1252 req->grp_next = grp->grp_next;
1253 grp->grp_next->grp_prev = req;
1254 grp->grp_next = req;
1255
1256 req->grp = grp;
1257 }
1258 } 2520 }
1259} 2521}
1260 2522
1261void 2523void
2524cancel_subs (aio_req_ornot req)
2525 CODE:
2526 req_cancel_subs (req);
2527
2528void
1262result (aio_req grp, ...) 2529result (aio_req grp, ...)
2530 CODE:
2531{
2532 int i;
2533 AV *av;
2534
2535 grp->errorno = errno;
2536
2537 av = newAV ();
2538 av_extend (av, items - 1);
2539
2540 for (i = 1; i < items; ++i )
2541 av_push (av, newSVsv (ST (i)));
2542
2543 SvREFCNT_dec (grp->sv1);
2544 grp->sv1 = (SV *)av;
2545}
2546
2547void
2548errno (aio_req grp, int errorno = errno)
2549 CODE:
2550 grp->errorno = errorno;
2551
2552void
2553limit (aio_req grp, int limit)
1263 CODE: 2554 CODE:
1264{ 2555 eio_grp_limit (grp, limit);
1265 int i;
1266 AV *av = newAV ();
1267 2556
1268 if (grp->data) 2557void
2558feed (aio_req grp, SV *callback = &PL_sv_undef)
2559 CODE:
2560{
1269 SvREFCNT_dec (grp->data); 2561 SvREFCNT_dec (grp->sv2);
2562 grp->sv2 = newSVsv (callback);
2563 grp->feed = aio_grp_feed;
1270 2564
1271 for (i = 1; i < items; ++i ) 2565 if (grp->int2 <= 0)
1272 av_push (av, newSVsv (ST (i))); 2566 grp->int2 = 2;
1273 2567
1274 grp->data = (SV *)av; 2568 eio_grp_limit (grp, grp->int2);
1275} 2569}
1276 2570

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