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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.45 by root, Sun Oct 22 00:19:05 2006 UTC vs.
Revision 1.253 by root, Tue Feb 20 04:32:59 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#include "schmorp.h"
9
10#include <pthread.h>
11 10
12#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
13#include <errno.h> 13#include <errno.h>
14#include <sys/time.h>
15#include <sys/select.h>
16#include <sys/types.h> 14#include <sys/types.h>
17#include <sys/stat.h> 15#include <sys/stat.h>
18#include <limits.h> 16#include <limits.h>
19#include <unistd.h>
20#include <fcntl.h> 17#include <fcntl.h>
21#include <signal.h>
22#include <sched.h> 18#include <sched.h>
23 19
24#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
25# if __linux
26# include <sys/sendfile.h>
27# elif __freebsd
28# include <sys/socket.h>
29# include <sys/uio.h> 21# include <sys/mman.h>
30# elif __hpux 22#endif
23
24/* the incompetent fool that created musl keeps __linux__, refuses
25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
37
38/* perl namespace pollution */
39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
47#ifdef _WIN32
48
49 // perl overrides all those nice libc functions
50
51 #undef malloc
52 #undef free
53 #undef open
54 #undef read
55 #undef write
56 #undef send
57 #undef recv
58 #undef stat
59 #undef lstat
60 #undef fstat
61 #undef truncate
62 #undef ftruncate
63 #undef open
64 #undef link
65 #undef close
66 #undef unlink
67 #undef mkdir
68 #undef rmdir
69 #undef rename
70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
80
81 #define EIO_STRUCT_STAT struct _stati64
82 #define EIO_STRUCT_STATI64
83
84#else
85
31# include <sys/socket.h> 86 #include <sys/time.h>
32# elif __solaris /* not yet */
33# include <sys/sendfile.h> 87 #include <sys/select.h>
88 #include <unistd.h>
89 #include <utime.h>
90 #include <signal.h>
91
92 #define EIO_STRUCT_STAT Stat_t
93
94#endif
95
96/*****************************************************************************/
97
98#if __GNUC__ >= 3
99# define expect(expr,value) __builtin_expect ((expr),(value))
100#else
101# define expect(expr,value) (expr)
102#endif
103
104#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1)
106
107/*****************************************************************************/
108
109#include "libeio/config.h"
110
111#if HAVE_EVENTFD
112# include <sys/eventfd.h>
113#endif
114
115#if HAVE_RLIMITS
116 #include <sys/time.h>
117 #include <sys/resource.h>
118#endif
119
120typedef SV SV8; /* byte-sv, used for argument-checking */
121typedef int aio_rfd; /* read file desriptor */
122typedef int aio_wfd; /* write file descriptor */
123
124static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
125
126#define EIO_REQ_MEMBERS \
127 SV *callback; \
128 SV *sv1, *sv2; \
129 SV *sv3, *sv4; \
130 STRLEN stroffset; \
131 SV *self;
132
133#define EIO_NO_WRAPPERS 1
134
135#include "libeio/eio.h"
136
137static int req_invoke (eio_req *req);
138#define EIO_FINISH(req) req_invoke (req)
139static void req_destroy (eio_req *grp);
140#define EIO_DESTROY(req) req_destroy (req)
141
142#include "libeio/eio.c"
143
144#if !HAVE_POSIX_FADVISE
145# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
146#endif
147
148#if !HAVE_POSIX_MADVISE
149# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
150#endif
151
152#ifndef MAP_ANONYMOUS
153# ifdef MAP_ANON
154# define MAP_ANONYMOUS MAP_ANON
34# else 155# else
35# error sendfile support requested but not available 156# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
36# endif 157# endif
37#endif 158#endif
38 159
39/* used for struct dirent, AIX doesn't provide it */ 160/* defines all sorts of constants to 0 unless they are already defined */
40#ifndef NAME_MAX 161/* also provides const_iv_ and const_niv_ macros for them */
41# define NAME_MAX 4096 162#include "def0.h"
42#endif
43 163
44#if __ia64 164#ifndef makedev
45# define STACKSIZE 65536 165# define makedev(maj,min) (((maj) << 8) | (min))
46#else
47# define STACKSIZE 8192
48#endif 166#endif
167#ifndef major
168# define major(dev) ((dev) >> 8)
169#endif
170#ifndef minor
171# define minor(dev) ((dev) & 0xff)
172#endif
49 173
50enum { 174#if PAGESIZE <= 0
51 REQ_QUIT, 175# define PAGESIZE sysconf (_SC_PAGESIZE)
52 REQ_OPEN, REQ_CLOSE, 176#endif
53 REQ_READ, REQ_WRITE, REQ_READAHEAD, 177
54 REQ_SENDFILE, 178/*****************************************************************************/
55 REQ_STAT, REQ_LSTAT, REQ_FSTAT, 179
56 REQ_FSYNC, REQ_FDATASYNC, 180#if !_POSIX_MAPPED_FILES
57 REQ_UNLINK, REQ_RMDIR, REQ_RENAME, 181# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
58 REQ_READDIR, 182# define munmap(addr,length) EIO_ENOSYS ()
59 REQ_LINK, REQ_SYMLINK, 183#endif
60 REQ_SLEEP, 184
61 REQ_GROUP, 185#if !_POSIX_MEMORY_PROTECTION
186# define mprotect(addr,len,prot) EIO_ENOSYS ()
187#endif
188
189#define FOREIGN_MAGIC PERL_MAGIC_ext
190
191static int ecb_cold
192mmap_free (pTHX_ SV *sv, MAGIC *mg)
193{
194 int old_errno = errno;
195 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
196 errno = old_errno;
197
198 mg->mg_obj = 0; /* just in case */
199
200 SvREADONLY_off (sv);
201
202 if (SvPVX (sv) != mg->mg_ptr)
203 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
204
205 SvCUR_set (sv, 0);
206 SvPVX (sv) = 0;
207 SvOK_off (sv);
208
209 return 0;
210}
211
212static MGVTBL mmap_vtbl = {
213 0, 0, 0, 0, mmap_free
62}; 214};
63 215
64#define AIO_REQ_KLASS "IO::AIO::REQ" 216static int ecb_cold
65#define AIO_GRP_KLASS "IO::AIO::GRP" 217sysfree_free (pTHX_ SV *sv, MAGIC *mg)
66
67typedef struct aio_cb
68{ 218{
69 struct aio_cb *grp, *grp_prev, *grp_next; 219 free (mg->mg_ptr);
220 mg->mg_obj = 0; /* just in case */
70 221
71 struct aio_cb *volatile next; 222 SvREADONLY_off (sv);
72 223
73 SV *self; /* the perl counterpart of this request, if any */ 224 if (SvPVX (sv) != mg->mg_ptr)
225 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
74 226
75 SV *data, *callback; 227 SvCUR_set (sv, 0);
76 SV *fh, *fh2; 228 SvPVX (sv) = 0;
77 void *dataptr, *data2ptr; 229 SvOK_off (sv);
78 Stat_t *statdata;
79 off_t offset;
80 size_t length;
81 ssize_t result;
82 230
83 int type; 231 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;
93typedef aio_cb *aio_group;
94
95static int started, wanted;
96static volatile int nreqs;
97static int max_outstanding = 1<<30;
98static int respipe [2];
99
100static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
101static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
102static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
103
104static volatile aio_req reqs, reqe; /* queue start, queue end */
105static volatile aio_req ress, rese; /* queue start, queue end */
106
107static void req_free (aio_req req);
108
109/* must be called at most once */
110static SV *req_sv (aio_req req, const char *klass)
111{
112 req->self = (SV *)newHV ();
113 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
114
115 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));
116} 232}
117 233
118static aio_req SvAIO_REQ (SV *sv) 234static MGVTBL sysfree_vtbl = {
119{ 235 0, 0, 0, 0, sysfree_free
120 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 236};
121 croak ("object of class " AIO_REQ_KLASS " expected");
122 237
123 MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 238/*****************************************************************************/
124 239
125 return mg ? (aio_req)mg->mg_ptr : 0; 240/* helper: set scalar to foreign ptr with custom free */
126} 241static void
127 242sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
128static void poll_wait ()
129{ 243{
130 if (nreqs && !ress) 244 sv_force_normal (sv);
245
246 /* we store the length in mg_obj, as namlen is I32 :/ */
247 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
248 ->mg_obj = (SV *)length;
249
250 SvUPGRADE (sv, SVt_PV); /* nop... */
251
252 if (SvLEN (sv))
253 Safefree (SvPVX (sv));
254
255 SvPVX (sv) = (char *)addr;
256 SvCUR_set (sv, length);
257 SvLEN_set (sv, 0);
258 SvPOK_only (sv);
259}
260
261static void
262sv_clear_foreign (SV *sv)
263{
264 /* todo: iterate over magic and only free ours, but of course */
265 /* the perl5porters will call that (correct) behaviour buggy */
266 sv_unmagic (sv, FOREIGN_MAGIC);
267}
268
269/*****************************************************************************/
270
271static void
272fiemap (eio_req *req)
273{
274 req->result = -1;
275
276#if HAVE_FIEMAP
277 /* assume some c99 */
278 struct fiemap *fiemap = 0;
279 size_t end_offset;
280 int count = req->int3;
281
282 req->flags |= EIO_FLAG_PTR1_FREE;
283
284 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
285 /* increase in 3.5kb steps */
286 if (count < 0)
287 count = 8;
288
289 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
290 errno = ENOMEM;
291 if (!fiemap)
292 return;
293
294 req->ptr1 = fiemap;
295
296 fiemap->fm_start = req->offs;
297 fiemap->fm_length = req->size;
298 fiemap->fm_flags = req->int2;
299 fiemap->fm_extent_count = count;
300
301 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
302 return;
303
304 if (req->int3 >= 0 /* not autosizing */
305 || !fiemap->fm_mapped_extents /* no more extents */
306 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
307 goto done;
308
309 /* else we have to loop -
310 * it would be tempting (actually I tried that first) to just query the
311 * number of extents needed, but linux often feels like not returning all
312 * extents, without telling us it left any out. this complicates
313 * this quite a bit.
314 */
315
316 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
317
318 for (;;)
131 { 319 {
132 fd_set rfd; 320 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
133 FD_ZERO(&rfd); 321 char scratch[3072];
134 FD_SET(respipe [0], &rfd); 322 struct fiemap *incmap = (struct fiemap *)scratch;
135 323
136 select (respipe [0] + 1, &rfd, 0, 0, 0); 324 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
137 } 325 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
138} 326 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
327 incmap->fm_flags = fiemap->fm_flags;
328 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
139 329
140static void req_invoke (aio_req req) 330 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
141{
142 dSP;
143 int errorno = errno;
144
145 if (req->cancelled || !SvOK (req->callback))
146 return; 331 return;
147 332
148 errno = req->errorno; 333 if (!incmap->fm_mapped_extents)
334 goto done;
149 335
150 ENTER; 336 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
151 PUSHMARK (SP); 337 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
338 errno = ENOMEM;
339 if (!fiemap)
340 return;
152 341
153 switch (req->type) 342 req->ptr1 = fiemap;
154 { 343
155 case REQ_READDIR: 344 for (count = 0; count < incmap->fm_mapped_extents; ++count)
156 { 345 {
157 SV *rv = &PL_sv_undef; 346 struct fiemap_extent *e = incmap->fm_extents + count;
158 347
159 if (req->result >= 0) 348 if (e->fe_logical + e->fe_length >= end_offset)
160 { 349 goto done;
161 char *buf = req->data2ptr;
162 AV *av = newAV ();
163 350
164 while (req->result) 351 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
165 {
166 SV *sv = newSVpv (buf, 0);
167 352
168 av_push (av, sv); 353 if (e->fe_flags & FIEMAP_EXTENT_LAST)
169 buf += SvCUR (sv) + 1; 354 goto done;
170 req->result--;
171 }
172 355
173 rv = sv_2mortal (newRV_noinc ((SV *)av));
174 }
175
176 XPUSHs (rv);
177 }
178 break;
179
180 case REQ_OPEN:
181 {
182 /* convert fd to fh */
183 SV *fh;
184
185 XPUSHs (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_SLEEP:
198 case REQ_GROUP:
199 break;
200
201 default:
202 XPUSHs (sv_2mortal (newSViv (req->result)));
203 break;
204 }
205
206
207 PUTBACK;
208 call_sv (req->callback, G_VOID | G_EVAL);
209 SPAGAIN;
210
211 if (SvTRUE (ERRSV))
212 {
213 req_free (req);
214 croak (0);
215 }
216
217 LEAVE;
218
219 errno = errorno;
220}
221
222static void req_free (aio_req req)
223{
224 if (req->grp)
225 {
226 aio_req grp = req->grp;
227
228 /* unlink request */
229 req->grp_next->grp_prev = req->grp_prev;
230 req->grp_prev->grp_next = req->grp_next;
231
232 if (grp->grp_next == grp)
233 {
234 req_invoke (grp);
235 req_free (grp);
236 } 356 }
237 } 357 }
238 358
359done:
360 req->result = 0;
361
362#else
363 errno = ENOSYS;
364#endif
365}
366
367/*****************************************************************************/
368
369enum {
370 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
371};
372
373typedef eio_req *aio_req;
374typedef eio_req *aio_req_ornot;
375typedef eio_wd aio_wd;
376
377static SV *on_next_submit;
378static int next_pri = EIO_PRI_DEFAULT;
379static int max_outstanding;
380
381static s_epipe respipe;
382
383static void req_destroy (aio_req req);
384static void req_cancel (aio_req req);
385
386static void
387want_poll (void)
388{
389 /* write a dummy byte to the pipe so fh becomes ready */
390 s_epipe_signal (&respipe);
391}
392
393static void
394done_poll (void)
395{
396 /* read any signals sent by the worker threads */
397 s_epipe_drain (&respipe);
398}
399
400/* must be called at most once */
401static SV *
402req_sv (aio_req req, HV *stash)
403{
404 if (!req->self)
405 {
406 req->self = (SV *)newHV ();
407 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
408 }
409
410 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
411}
412
413static SV *
414newSVaio_wd (aio_wd wd)
415{
416 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
417}
418
419static aio_req
420SvAIO_REQ (SV *sv)
421{
422 MAGIC *mg;
423
424 if (!SvROK (sv)
425 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
426 || (SvSTASH (SvRV (sv)) != aio_grp_stash
427 && SvSTASH (SvRV (sv)) != aio_req_stash
428 && !sv_derived_from (sv, "IO::AIO::REQ")))
429 croak ("object of class IO::AIO::REQ expected");
430
431 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
432
433 return mg ? (aio_req)mg->mg_ptr : 0;
434}
435
436static aio_wd
437SvAIO_WD (SV *sv)
438{
439 if (!SvROK (sv)
440 || SvTYPE (SvRV (sv)) != SVt_PVMG
441 || SvSTASH (SvRV (sv)) != aio_wd_stash)
442 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
443
444 return (aio_wd)(long)SvIVX (SvRV (sv));
445}
446
447static SV *
448newmortalFH (int fd, int flags)
449{
450 if (fd < 0)
451 return &PL_sv_undef;
452
453 GV *gv = (GV *)sv_newmortal ();
454 char sym[64];
455 int symlen;
456
457 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
458 gv_init (gv, aio_stash, sym, symlen, 0);
459
460 symlen = snprintf (
461 sym,
462 sizeof (sym),
463 "%s&=%d",
464 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
465 fd
466 );
467
468 return do_open (gv, sym, symlen, 0, 0, 0, 0)
469 ? (SV *)gv : &PL_sv_undef;
470}
471
472static void
473aio_grp_feed (aio_req grp)
474{
475 if (grp->sv2 && SvOK (grp->sv2))
476 {
477 dSP;
478
479 ENTER;
480 SAVETMPS;
481 PUSHMARK (SP);
482 XPUSHs (req_sv (grp, aio_grp_stash));
483 PUTBACK;
484 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
485 SPAGAIN;
486 FREETMPS;
487 LEAVE;
488 }
489}
490
491static void
492req_submit (eio_req *req)
493{
494 eio_submit (req);
495
496 if (expect_false (on_next_submit))
497 {
498 dSP;
499 SV *cb = sv_2mortal (on_next_submit);
500
501 on_next_submit = 0;
502
503 PUSHMARK (SP);
504 PUTBACK;
505 call_sv (cb, G_DISCARD | G_EVAL);
506 }
507}
508
509static int
510req_invoke (eio_req *req)
511{
512 if (req->flags & FLAG_SV2_RO_OFF)
513 SvREADONLY_off (req->sv2);
514
515 if (!EIO_CANCELLED (req) && req->callback)
516 {
517 dSP;
518 static SV *sv_result_cache; /* caches the result integer SV */
519 SV *sv_result;
520
521 ENTER;
522 SAVETMPS;
523 PUSHMARK (SP);
524 EXTEND (SP, 1);
525
526 /* do not recreate the result IV from scratch each time */
527 if (expect_true (sv_result_cache))
528 {
529 sv_result = sv_result_cache; sv_result_cache = 0;
530 SvIV_set (sv_result, req->result);
531 SvIOK_only (sv_result);
532 }
533 else
534 {
535 sv_result = newSViv (req->result);
536 SvREADONLY_on (sv_result);
537 }
538
539 switch (req->type)
540 {
541 case EIO_WD_OPEN:
542 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
543 break;
544
545 case EIO_READDIR:
546 {
547 SV *rv = &PL_sv_undef;
548
549 if (req->result >= 0)
550 {
551 int i;
552 char *names = (char *)req->ptr2;
553 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
554 AV *av = newAV ();
555
556 av_extend (av, req->result - 1);
557
558 for (i = 0; i < req->result; ++i)
559 {
560 if (req->int1 & EIO_READDIR_DENTS)
561 {
562 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
563
564 if (req->int1 & EIO_READDIR_CUSTOM2)
565 {
566 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
567 AV *avent = newAV ();
568
569 av_extend (avent, 2);
570
571 if (!sv_type [ent->type])
572 {
573 sv_type [ent->type] = newSViv (ent->type);
574 SvREADONLY_on (sv_type [ent->type]);
575 }
576
577 av_store (avent, 0, namesv);
578 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
579 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
580
581 av_store (av, i, newRV_noinc ((SV *)avent));
582 }
583 else
584 av_store (av, i, namesv);
585
586 ++ent;
587 }
588 else
589 {
590 SV *name = newSVpv (names, 0);
591 av_store (av, i, name);
592 names += SvCUR (name) + 1;
593 }
594 }
595
596 rv = sv_2mortal (newRV_noinc ((SV *)av));
597 }
598
599 PUSHs (rv);
600
601 if (req->int1 & EIO_READDIR_CUSTOM1)
602 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
603 }
604 break;
605
606 case EIO_OPEN:
607 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
608 break;
609
610 case EIO_STATVFS:
611 case EIO_FSTATVFS:
612 {
613 SV *rv = &PL_sv_undef;
614
615#ifndef _WIN32
616 if (req->result >= 0)
617 {
618 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
619 HV *hv = newHV ();
620 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
621 * chooses to make it a struct.
622 */
623 unsigned long fsid = 0;
624 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
625
626 rv = sv_2mortal (newRV_noinc ((SV *)hv));
627
628 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
629 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
630 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
631 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
632 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
633 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
634 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
635 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
636 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
637 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
638 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
639 }
640#endif
641
642 PUSHs (rv);
643 }
644
645 break;
646
647 case EIO_GROUP:
648 req->int1 = 2; /* mark group as finished */
649
650 if (req->sv1)
651 {
652 int i;
653 AV *av = (AV *)req->sv1;
654
655 EXTEND (SP, AvFILL (av) + 1);
656 for (i = 0; i <= AvFILL (av); ++i)
657 PUSHs (*av_fetch (av, i, 0));
658 }
659 break;
660
661 case EIO_NOP:
662 case EIO_BUSY:
663 break;
664
665 case EIO_READLINK:
666 case EIO_REALPATH:
667 if (req->result > 0)
668 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
669 break;
670
671 case EIO_STAT:
672 case EIO_LSTAT:
673 case EIO_FSTAT:
674 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
675
676 if (!(PL_laststatval = req->result))
677 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
678 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
679
680 PUSHs (sv_result);
681 break;
682
683 case EIO_SEEK:
684 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
685 break;
686
687 case EIO_READ:
688 {
689 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
690 *SvEND (req->sv2) = 0;
691 SvPOK_only (req->sv2);
692 SvSETMAGIC (req->sv2);
693 PUSHs (sv_result);
694 }
695 break;
696
697 case EIO_SLURP:
698 {
699 if (req->result >= 0)
700 {
701 /* if length was originally not known, we steal the malloc'ed memory */
702 if (req->flags & EIO_FLAG_PTR2_FREE)
703 {
704 req->flags &= ~EIO_FLAG_PTR2_FREE;
705 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
706 }
707 else
708 {
709 SvCUR_set (req->sv2, req->result);
710 *SvEND (req->sv2) = 0;
711 SvPOK_only (req->sv2);
712 }
713
714 SvSETMAGIC (req->sv2);
715 }
716
717 PUSHs (sv_result);
718 }
719 break;
720
721 case EIO_CUSTOM:
722 if (req->feed == fiemap)
723 {
724#if HAVE_FIEMAP
725 if (!req->result)
726 {
727 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
728
729 if (fiemap->fm_extent_count)
730 {
731 AV *av = newAV ();
732 int i;
733
734 while (fiemap->fm_mapped_extents)
735 {
736 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
737 AV *ext_av = newAV ();
738
739 av_store (ext_av, 3, newSVuv (extent->fe_flags));
740 av_store (ext_av, 2, newSVval64 (extent->fe_length));
741 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
742 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
743
744 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
745 }
746
747 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
748 }
749 else
750 {
751 SvIV_set (sv_result, fiemap->fm_mapped_extents);
752 PUSHs (sv_result);
753 }
754 }
755#endif
756 }
757 else
758 PUSHs (sv_result);
759 break;
760
761 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
762 if (req->result > 0)
763 SvIV_set (sv_result, 0);
764 /* FALLTHROUGH */
765
766 default:
767 PUSHs (sv_result);
768 break;
769 }
770
771 errno = req->errorno;
772
773 PUTBACK;
774 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
775 SPAGAIN;
776
777 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
778 SvREFCNT_dec (sv_result);
779 else
780 sv_result_cache = sv_result;
781
782 FREETMPS;
783 LEAVE;
784
785 PUTBACK;
786 }
787
788 return !!SvTRUE (ERRSV);
789}
790
791static void
792req_destroy (aio_req req)
793{
239 if (req->self) 794 if (req->self)
240 { 795 {
241 sv_unmagic (req->self, PERL_MAGIC_ext); 796 sv_unmagic (req->self, PERL_MAGIC_ext);
242 SvREFCNT_dec (req->self); 797 SvREFCNT_dec (req->self);
243 } 798 }
244 799
245 if (req->data)
246 SvREFCNT_dec (req->data);
247
248 if (req->fh)
249 SvREFCNT_dec (req->fh); 800 SvREFCNT_dec (req->sv1);
250
251 if (req->fh2)
252 SvREFCNT_dec (req->fh2); 801 SvREFCNT_dec (req->sv2);
253 802 SvREFCNT_dec (req->sv3);
254 if (req->statdata) 803 SvREFCNT_dec (req->sv4);
255 Safefree (req->statdata);
256
257 if (req->callback)
258 SvREFCNT_dec (req->callback); 804 SvREFCNT_dec (req->callback);
259 805
260 if (req->type == REQ_READDIR && req->result >= 0)
261 free (req->data2ptr);
262
263 Safefree (req); 806 free (req);
264} 807}
265 808
266static void req_cancel (aio_req req) 809static void
810req_cancel_subs (aio_req grp)
267{ 811{
268 req->cancelled = 1;
269
270 if (req->type == REQ_GROUP) 812 if (grp->type != EIO_GROUP)
813 return;
814
815 SvREFCNT_dec (grp->sv2);
816 grp->sv2 = 0;
817
818 eio_grp_cancel (grp);
819}
820
821static void ecb_cold
822create_respipe (void)
823{
824 if (s_epipe_renew (&respipe))
825 croak ("IO::AIO: unable to initialize result pipe");
826}
827
828static void
829poll_wait (void)
830{
831 while (eio_nreqs ())
271 { 832 {
272 aio_req sub; 833 int size;
273 834
274 for (sub = req->grp_next; sub != req; sub = sub->grp_next) 835 X_LOCK (EIO_POOL->reslock);
275 req_cancel (sub); 836 size = EIO_POOL->res_queue.size;
837 X_UNLOCK (EIO_POOL->reslock);
838
839 if (size)
840 return;
841
842 etp_maybe_start_thread (EIO_POOL);
843
844 s_epipe_wait (&respipe);
276 } 845 }
277} 846}
278 847
279static int poll_cb () 848static int
849poll_cb (void)
280{ 850{
281 dSP;
282 int count = 0;
283 int do_croak = 0;
284 aio_req req;
285
286 for (;;) 851 for (;;)
287 { 852 {
288 pthread_mutex_lock (&reslock); 853 int res = eio_poll ();
289 req = ress;
290 854
291 if (req) 855 if (res > 0)
856 croak (0);
857
858 if (!max_outstanding || max_outstanding > eio_nreqs ())
859 return res;
860
861 poll_wait ();
862 }
863}
864
865static void ecb_cold
866reinit (void)
867{
868 create_respipe ();
869
870 if (eio_init (want_poll, done_poll) < 0)
871 croak ("IO::AIO: unable to initialise eio library");
872}
873
874/*****************************************************************************/
875
876static SV *
877get_cb (SV *cb_sv)
878{
879 SvGETMAGIC (cb_sv);
880 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
881}
882
883static aio_req ecb_noinline
884dreq (SV *callback)
885{
886 SV *cb_cv;
887 aio_req req;
888 int req_pri = next_pri;
889 next_pri = EIO_PRI_DEFAULT;
890
891 cb_cv = get_cb (callback);
892
893 req = calloc (sizeof (*req), 1);
894 if (!req)
895 croak ("out of memory during eio_req allocation");
896
897 req->callback = SvREFCNT_inc (cb_cv);
898 req->pri = req_pri;
899
900 return req;
901}
902
903#define dREQ \
904 aio_req req = dreq (callback); \
905
906#define REQ_SEND \
907 PUTBACK; \
908 req_submit (req); \
909 SPAGAIN; \
910 \
911 if (GIMME_V != G_VOID) \
912 XPUSHs (req_sv (req, aio_req_stash));
913
914ecb_inline void
915req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
916{
917 if (expect_false (SvROK (path)))
918 {
919 SV *rv = SvRV (path);
920 SV *wdob;
921
922 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
292 { 923 {
293 ress = req->next; 924 path = AvARRAY (rv)[1];
925 wdob = AvARRAY (rv)[0];
294 926
295 if (!ress) 927 if (SvOK (wdob))
296 { 928 {
297 /* read any signals sent by the worker threads */ 929 *wd = SvAIO_WD (wdob);
298 char buf [32]; 930 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
299 while (read (respipe [0], buf, 32) == 32)
300 ;
301
302 rese = 0;
303 } 931 }
932 else
933 *wd = EIO_INVALID_WD;
304 } 934 }
305 935 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
306 pthread_mutex_unlock (&reslock);
307
308 if (!req)
309 break;
310
311 nreqs--;
312
313 if (req->type == REQ_QUIT)
314 started--;
315 else if (req->type == REQ_GROUP && req->grp_next != req)
316 continue;
317 else
318 { 936 {
319 if (req->type == REQ_READ) 937 *wd = (aio_wd)(long)SvIVX (rv);
320 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0)); 938 *wdsv = SvREFCNT_inc_NN (rv);
321 939 *ptr = ".";
322 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE)) 940 return; /* path set to "." */
323 SvREADONLY_off (req->data);
324
325 if (req->statdata)
326 {
327 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
328 PL_laststatval = req->result;
329 PL_statcache = *(req->statdata);
330 }
331
332 req_invoke (req);
333
334 count++;
335 }
336
337 req_free (req);
338 }
339
340 return count;
341}
342
343static void *aio_proc(void *arg);
344
345static void start_thread (void)
346{
347 sigset_t fullsigset, oldsigset;
348 pthread_t tid;
349 pthread_attr_t attr;
350
351 pthread_attr_init (&attr);
352 pthread_attr_setstacksize (&attr, STACKSIZE);
353 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
354
355 sigfillset (&fullsigset);
356 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
357
358 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
359 started++;
360
361 sigprocmask (SIG_SETMASK, &oldsigset, 0);
362}
363
364static void req_send (aio_req req)
365{
366 while (started < wanted && nreqs >= started)
367 start_thread ();
368
369 nreqs++;
370
371 pthread_mutex_lock (&reqlock);
372
373 req->next = 0;
374
375 if (reqe)
376 {
377 reqe->next = req;
378 reqe = req;
379 }
380 else
381 reqe = reqs = req;
382
383 pthread_cond_signal (&reqwait);
384 pthread_mutex_unlock (&reqlock);
385
386 if (nreqs > max_outstanding)
387 for (;;)
388 {
389 poll_cb ();
390
391 if (nreqs <= max_outstanding)
392 break;
393
394 poll_wait ();
395 }
396}
397
398static void end_thread (void)
399{
400 aio_req req;
401 Newz (0, req, 1, aio_cb);
402 req->type = REQ_QUIT;
403
404 req_send (req);
405}
406
407static void min_parallel (int nthreads)
408{
409 if (wanted < nthreads)
410 wanted = nthreads;
411}
412
413static void max_parallel (int nthreads)
414{
415 int cur = started;
416
417 if (wanted > nthreads)
418 wanted = nthreads;
419
420 while (cur > wanted)
421 {
422 end_thread ();
423 cur--;
424 }
425
426 while (started > wanted)
427 {
428 poll_wait ();
429 poll_cb ();
430 }
431}
432
433static void create_pipe ()
434{
435 if (pipe (respipe))
436 croak ("unable to initialize result pipe");
437
438 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
439 croak ("cannot set result pipe to nonblocking mode");
440
441 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
442 croak ("cannot set result pipe to nonblocking mode");
443}
444
445/*****************************************************************************/
446/* work around various missing functions */
447
448#if !HAVE_PREADWRITE
449# define pread aio_pread
450# define pwrite aio_pwrite
451
452/*
453 * make our pread/pwrite safe against themselves, but not against
454 * normal read/write by using a mutex. slows down execution a lot,
455 * but that's your problem, not mine.
456 */
457static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
458
459static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
460{
461 ssize_t res;
462 off_t ooffset;
463
464 pthread_mutex_lock (&preadwritelock);
465 ooffset = lseek (fd, 0, SEEK_CUR);
466 lseek (fd, offset, SEEK_SET);
467 res = read (fd, buf, count);
468 lseek (fd, ooffset, SEEK_SET);
469 pthread_mutex_unlock (&preadwritelock);
470
471 return res;
472}
473
474static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
475{
476 ssize_t res;
477 off_t ooffset;
478
479 pthread_mutex_lock (&preadwritelock);
480 ooffset = lseek (fd, 0, SEEK_CUR);
481 lseek (fd, offset, SEEK_SET);
482 res = write (fd, buf, count);
483 lseek (fd, offset, SEEK_SET);
484 pthread_mutex_unlock (&preadwritelock);
485
486 return res;
487}
488#endif
489
490#if !HAVE_FDATASYNC
491# define fdatasync fsync
492#endif
493
494#if !HAVE_READAHEAD
495# define readahead aio_readahead
496
497static ssize_t readahead (int fd, off_t offset, size_t count)
498{
499 char readahead_buf[4096];
500
501 while (count > 0)
502 {
503 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
504
505 pread (fd, readahead_buf, len, offset);
506 offset += len;
507 count -= len;
508 }
509
510 errno = 0;
511}
512#endif
513
514#if !HAVE_READDIR_R
515# define readdir_r aio_readdir_r
516
517static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
518
519static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
520{
521 struct dirent *e;
522 int errorno;
523
524 pthread_mutex_lock (&readdirlock);
525
526 e = readdir (dirp);
527 errorno = errno;
528
529 if (e)
530 {
531 *res = ent;
532 strcpy (ent->d_name, e->d_name);
533 }
534 else
535 *res = 0;
536
537 pthread_mutex_unlock (&readdirlock);
538
539 errno = errorno;
540 return e ? 0 : -1;
541}
542#endif
543
544/* sendfile always needs emulation */
545static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
546{
547 ssize_t res;
548
549 if (!count)
550 return 0;
551
552#if HAVE_SENDFILE
553# if __linux
554 res = sendfile (ofd, ifd, &offset, count);
555
556# elif __freebsd
557 /*
558 * Of course, the freebsd sendfile is a dire hack with no thoughts
559 * wasted on making it similar to other I/O functions.
560 */
561 {
562 off_t sbytes;
563 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
564
565 if (res < 0 && sbytes)
566 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
567 res = sbytes;
568 }
569
570# elif __hpux
571 res = sendfile (ofd, ifd, offset, count, 0, 0);
572
573# elif __solaris
574 {
575 struct sendfilevec vec;
576 size_t sbytes;
577
578 vec.sfv_fd = ifd;
579 vec.sfv_flag = 0;
580 vec.sfv_off = offset;
581 vec.sfv_len = count;
582
583 res = sendfilev (ofd, &vec, 1, &sbytes);
584
585 if (res < 0 && sbytes)
586 res = sbytes;
587 }
588
589# endif
590#else
591 res = -1;
592 errno = ENOSYS;
593#endif
594
595 if (res < 0
596 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
597#if __solaris
598 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
599#endif
600 )
601 )
602 {
603 /* emulate sendfile. this is a major pain in the ass */
604 char buf[4096];
605 res = 0;
606
607 while (count)
608 {
609 ssize_t cnt;
610
611 cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
612
613 if (cnt <= 0)
614 {
615 if (cnt && !res) res = -1;
616 break;
617 }
618
619 cnt = write (ofd, buf, cnt);
620
621 if (cnt <= 0)
622 {
623 if (cnt && !res) res = -1;
624 break;
625 }
626
627 offset += cnt;
628 res += cnt;
629 count -= cnt;
630 }
631 }
632
633 return res;
634}
635
636/* read a full directory */
637static int scandir_ (const char *path, void **namesp)
638{
639 DIR *dirp = opendir (path);
640 union
641 {
642 struct dirent d;
643 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
644 } u;
645 struct dirent *entp;
646 char *name, *names;
647 int memlen = 4096;
648 int memofs = 0;
649 int res = 0;
650 int errorno;
651
652 if (!dirp)
653 return -1;
654
655 names = malloc (memlen);
656
657 for (;;)
658 {
659 errno = 0, readdir_r (dirp, &u.d, &entp);
660
661 if (!entp)
662 break;
663
664 name = entp->d_name;
665
666 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
667 {
668 int len = strlen (name) + 1;
669
670 res++;
671
672 while (memofs + len > memlen)
673 {
674 memlen *= 2;
675 names = realloc (names, memlen);
676 if (!names)
677 break;
678 }
679
680 memcpy (names + memofs, name, len);
681 memofs += len;
682 }
683 }
684
685 errorno = errno;
686 closedir (dirp);
687
688 if (errorno)
689 {
690 free (names);
691 errno = errorno;
692 res = -1;
693 }
694
695 *namesp = (void *)names;
696 return res;
697}
698
699/*****************************************************************************/
700
701static void *aio_proc (void *thr_arg)
702{
703 aio_req req;
704 int type;
705
706 do
707 {
708 pthread_mutex_lock (&reqlock);
709
710 for (;;)
711 {
712 req = reqs;
713
714 if (reqs)
715 {
716 reqs = reqs->next;
717 if (!reqs) reqe = 0;
718 }
719
720 if (req)
721 break;
722
723 pthread_cond_wait (&reqwait, &reqlock);
724 }
725
726 pthread_mutex_unlock (&reqlock);
727
728 errno = 0; /* strictly unnecessary */
729
730 if (!req->cancelled)
731 switch (req->type)
732 {
733 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
734 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
735
736 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
737 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
738
739 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
740 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
741 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
742
743 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
744 case REQ_CLOSE: req->result = close (req->fd); break;
745 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
746 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
747 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
748 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
749 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
750
751 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
752 case REQ_FSYNC: req->result = fsync (req->fd); break;
753 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
754
755 case REQ_SLEEP:
756 {
757 struct timeval tv;
758
759 tv.tv_sec = req->fd;
760 tv.tv_usec = req->fd2;
761
762 req->result = select (0, 0, 0, 0, &tv);
763 }
764
765 case REQ_QUIT:
766 break;
767
768 default:
769 req->result = ENOSYS;
770 break;
771 }
772
773 req->errorno = errno;
774
775 pthread_mutex_lock (&reslock);
776
777 req->next = 0;
778
779 if (rese)
780 {
781 rese->next = req;
782 rese = req;
783 } 941 }
784 else 942 else
785 { 943 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
786 rese = ress = req;
787
788 /* write a dummy byte to the pipe so fh becomes ready */
789 write (respipe [1], &respipe, 1);
790 }
791
792 pthread_mutex_unlock (&reslock);
793 } 944 }
794 while (type != REQ_QUIT);
795 945
796 return 0; 946 *pathsv = newSVsv (path);
947 *ptr = SvPVbyte_nolen (*pathsv);
797} 948}
798 949
799/*****************************************************************************/ 950static void ecb_noinline
800 951req_set_path1 (aio_req req, SV *path)
801static void atfork_prepare (void)
802{ 952{
803 pthread_mutex_lock (&reqlock); 953 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
804 pthread_mutex_lock (&reslock);
805#if !HAVE_PREADWRITE
806 pthread_mutex_lock (&preadwritelock);
807#endif
808#if !HAVE_READDIR_R
809 pthread_mutex_lock (&readdirlock);
810#endif
811} 954}
812 955
813static void atfork_parent (void) 956static void ecb_noinline
957req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
814{ 958{
815#if !HAVE_READDIR_R 959 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
816 pthread_mutex_unlock (&readdirlock);
817#endif
818#if !HAVE_PREADWRITE
819 pthread_mutex_unlock (&preadwritelock);
820#endif
821 pthread_mutex_unlock (&reslock);
822 pthread_mutex_unlock (&reqlock);
823}
824 960
825static void atfork_child (void) 961 switch (SvTYPE (rv))
826{
827 aio_req prv;
828
829 started = 0;
830
831 while (reqs)
832 { 962 {
833 prv = reqs; 963 case SVt_PVIO:
834 reqs = prv->next; 964 case SVt_PVLV:
835 req_free (prv); 965 case SVt_PVGV:
966 req->type = type_fh;
967 req->sv1 = newSVsv (fh_or_path);
968 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
969 break;
970
971 default:
972 req->type = type_path;
973 req_set_path1 (req, fh_or_path);
974 break;
836 } 975 }
837
838 reqs = reqe = 0;
839
840 while (ress)
841 {
842 prv = ress;
843 ress = prv->next;
844 req_free (prv);
845 }
846
847 ress = rese = 0;
848
849 close (respipe [0]);
850 close (respipe [1]);
851 create_pipe ();
852
853 atfork_parent ();
854} 976}
855 977
856#define dREQ \ 978XS(boot_IO__AIO) ecb_cold;
857 aio_req req; \
858 \
859 if (SvOK (callback) && !SvROK (callback)) \
860 croak ("callback must be undef or of reference type"); \
861 \
862 Newz (0, req, 1, aio_cb); \
863 if (!req) \
864 croak ("out of memory during aio_req allocation"); \
865 \
866 req->callback = newSVsv (callback)
867 979
868#define REQ_SEND \
869 req_send (req); \
870 \
871 if (GIMME_V != G_VOID) \
872 XPUSHs (req_sv (req, AIO_REQ_KLASS));
873
874MODULE = IO::AIO PACKAGE = IO::AIO 980MODULE = IO::AIO PACKAGE = IO::AIO
875 981
876PROTOTYPES: ENABLE 982PROTOTYPES: ENABLE
877 983
878BOOT: 984BOOT:
879{ 985{
986 static const struct {
987 const char *name;
988 IV iv;
989 } *civ, const_iv[] = {
990# define const_niv(name, value) { # name, (IV) value },
991# define const_iv(name) { # name, (IV) name },
992# define const_eio(name) { # name, (IV) EIO_ ## name },
993
994 /* you have to re-run ./gendef0 after adding/removing any constants here */
995 /* the first block can be undef if missing */
996 const_iv (ENOSYS)
997 const_iv (EXDEV)
998 const_iv (EBADR)
999
1000 /* for lseek */
1001 const_iv (SEEK_DATA)
1002 const_iv (SEEK_HOLE)
1003
1004 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1005 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1006 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1007 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1008 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1009 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1010
1011 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1012 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1013 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1014 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1015 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1016
1017 /* the second block will be 0 when missing */
1018 const_iv (O_RDONLY)
1019 const_iv (O_WRONLY)
1020 const_iv (O_RDWR)
1021 const_iv (O_CREAT)
1022 const_iv (O_TRUNC)
1023 const_iv (O_EXCL)
1024 const_iv (O_APPEND)
1025
1026 const_iv (O_ASYNC)
1027 const_iv (O_DIRECT)
1028 const_iv (O_NOATIME)
1029
1030 const_iv (O_CLOEXEC)
1031 const_iv (O_NOCTTY)
1032 const_iv (O_NOFOLLOW)
1033 const_iv (O_NONBLOCK)
1034 const_iv (O_EXEC)
1035 const_iv (O_SEARCH)
1036 const_iv (O_DIRECTORY)
1037 const_iv (O_DSYNC)
1038 const_iv (O_RSYNC)
1039 const_iv (O_SYNC)
1040 const_iv (O_PATH)
1041 const_iv (O_TMPFILE)
1042 const_iv (O_TTY_INIT)
1043
1044 const_iv (S_IFIFO)
1045 const_iv (S_IFCHR)
1046 const_iv (S_IFBLK)
1047 const_iv (S_IFLNK)
1048 const_iv (S_IFREG)
1049 const_iv (S_IFDIR)
1050 const_iv (S_IFWHT)
1051 const_iv (S_IFSOCK)
1052 const_iv (S_IFMT)
1053
1054 const_iv (ST_RDONLY)
1055 const_iv (ST_NOSUID)
1056 const_iv (ST_NODEV)
1057 const_iv (ST_NOEXEC)
1058 const_iv (ST_SYNCHRONOUS)
1059 const_iv (ST_MANDLOCK)
1060 const_iv (ST_WRITE)
1061 const_iv (ST_APPEND)
1062 const_iv (ST_IMMUTABLE)
1063 const_iv (ST_NOATIME)
1064 const_iv (ST_NODIRATIME)
1065 const_iv (ST_RELATIME)
1066
1067 const_iv (PROT_NONE)
1068 const_iv (PROT_EXEC)
1069 const_iv (PROT_READ)
1070 const_iv (PROT_WRITE)
1071
1072 const_iv (MAP_PRIVATE)
1073 const_iv (MAP_SHARED)
1074 const_iv (MAP_FIXED)
1075 const_iv (MAP_ANONYMOUS)
1076
1077 /* linuxish */
1078 const_iv (MAP_LOCKED)
1079 const_iv (MAP_NORESERVE)
1080 const_iv (MAP_POPULATE)
1081 const_iv (MAP_NONBLOCK)
1082 const_iv (MAP_GROWSDOWN)
1083 const_iv (MAP_32BIT)
1084 const_iv (MAP_HUGETLB)
1085 const_iv (MAP_STACK)
1086
1087 const_iv (F_DUPFD_CLOEXEC)
1088
1089 const_iv (F_OFD_GETLK)
1090 const_iv (F_OFD_SETLK)
1091 const_iv (F_OFD_GETLKW)
1092
1093 const_iv (FIFREEZE)
1094 const_iv (FITHAW)
1095 const_iv (FITRIM)
1096 const_iv (FICLONE)
1097 const_iv (FICLONERANGE)
1098 const_iv (FIDEDUPERANGE)
1099
1100 const_iv (FS_IOC_GETFLAGS)
1101 const_iv (FS_IOC_SETFLAGS)
1102 const_iv (FS_IOC_GETVERSION)
1103 const_iv (FS_IOC_SETVERSION)
1104 const_iv (FS_IOC_FIEMAP)
1105 const_iv (FS_IOC_FSGETXATTR)
1106 const_iv (FS_IOC_FSSETXATTR)
1107 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1108 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1109 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1110
1111 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1112
1113 const_iv (FS_SECRM_FL)
1114 const_iv (FS_UNRM_FL)
1115 const_iv (FS_COMPR_FL)
1116 const_iv (FS_SYNC_FL)
1117 const_iv (FS_IMMUTABLE_FL)
1118 const_iv (FS_APPEND_FL)
1119 const_iv (FS_NODUMP_FL)
1120 const_iv (FS_NOATIME_FL)
1121 const_iv (FS_DIRTY_FL)
1122 const_iv (FS_COMPRBLK_FL)
1123 const_iv (FS_NOCOMP_FL)
1124 const_iv (FS_ENCRYPT_FL)
1125 const_iv (FS_BTREE_FL)
1126 const_iv (FS_INDEX_FL)
1127 const_iv (FS_JOURNAL_DATA_FL)
1128 const_iv (FS_NOTAIL_FL)
1129 const_iv (FS_DIRSYNC_FL)
1130 const_iv (FS_TOPDIR_FL)
1131 const_iv (FS_FL_USER_MODIFIABLE)
1132
1133 const_iv (FS_XFLAG_REALTIME)
1134 const_iv (FS_XFLAG_PREALLOC)
1135 const_iv (FS_XFLAG_IMMUTABLE)
1136 const_iv (FS_XFLAG_APPEND)
1137 const_iv (FS_XFLAG_SYNC)
1138 const_iv (FS_XFLAG_NOATIME)
1139 const_iv (FS_XFLAG_NODUMP)
1140 const_iv (FS_XFLAG_RTINHERIT)
1141 const_iv (FS_XFLAG_PROJINHERIT)
1142 const_iv (FS_XFLAG_NOSYMLINKS)
1143 const_iv (FS_XFLAG_EXTSIZE)
1144 const_iv (FS_XFLAG_EXTSZINHERIT)
1145 const_iv (FS_XFLAG_NODEFRAG)
1146 const_iv (FS_XFLAG_FILESTREAM)
1147 const_iv (FS_XFLAG_DAX)
1148 const_iv (FS_XFLAG_HASATTR)
1149
1150 const_iv (FIEMAP_FLAG_SYNC)
1151 const_iv (FIEMAP_FLAG_XATTR)
1152 const_iv (FIEMAP_FLAGS_COMPAT)
1153 const_iv (FIEMAP_EXTENT_LAST)
1154 const_iv (FIEMAP_EXTENT_UNKNOWN)
1155 const_iv (FIEMAP_EXTENT_DELALLOC)
1156 const_iv (FIEMAP_EXTENT_ENCODED)
1157 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1158 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1159 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1160 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1161 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1162 const_iv (FIEMAP_EXTENT_MERGED)
1163 const_iv (FIEMAP_EXTENT_SHARED)
1164
1165 const_iv (SPLICE_F_MOVE)
1166 const_iv (SPLICE_F_NONBLOCK)
1167 const_iv (SPLICE_F_MORE)
1168 const_iv (SPLICE_F_GIFT)
1169
1170 const_iv (EFD_CLOEXEC)
1171 const_iv (EFD_NONBLOCK)
1172 const_iv (EFD_SEMAPHORE)
1173
1174 /* these are libeio constants, and are independent of gendef0 */
1175 const_eio (SEEK_SET)
1176 const_eio (SEEK_CUR)
1177 const_eio (SEEK_END)
1178
1179 const_eio (MCL_FUTURE)
1180 const_eio (MCL_CURRENT)
1181
1182 const_eio (MS_ASYNC)
1183 const_eio (MS_INVALIDATE)
1184 const_eio (MS_SYNC)
1185
1186 const_eio (MT_MODIFY)
1187
1188 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1189 const_eio (SYNC_FILE_RANGE_WRITE)
1190 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1191
1192 const_eio (FALLOC_FL_KEEP_SIZE)
1193 const_eio (FALLOC_FL_PUNCH_HOLE)
1194 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1195 const_eio (FALLOC_FL_ZERO_RANGE)
1196 const_eio (FALLOC_FL_INSERT_RANGE)
1197 const_eio (FALLOC_FL_UNSHARE_RANGE)
1198
1199 const_eio (RENAME_NOREPLACE)
1200 const_eio (RENAME_EXCHANGE)
1201 const_eio (RENAME_WHITEOUT)
1202
1203 const_eio (READDIR_DENTS)
1204 const_eio (READDIR_DIRS_FIRST)
1205 const_eio (READDIR_STAT_ORDER)
1206 const_eio (READDIR_FOUND_UNKNOWN)
1207
1208 const_eio (DT_UNKNOWN)
1209 const_eio (DT_FIFO)
1210 const_eio (DT_CHR)
1211 const_eio (DT_DIR)
1212 const_eio (DT_BLK)
1213 const_eio (DT_REG)
1214 const_eio (DT_LNK)
1215 const_eio (DT_SOCK)
1216 const_eio (DT_WHT)
1217 };
1218
880 HV *stash = gv_stashpv ("IO::AIO", 1); 1219 aio_stash = gv_stashpv ("IO::AIO" , 1);
881 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1220 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
882 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1221 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
883 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 1222 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
884 1223
885 create_pipe (); 1224 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
886 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 1225 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
887}
888 1226
1227 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1228
1229 reinit ();
1230}
1231
889void 1232void
890min_parallel (nthreads) 1233reinit ()
891 int nthreads 1234 PROTOTYPE:
1235
1236void
1237max_poll_reqs (unsigned int nreqs)
892 PROTOTYPE: $ 1238 PROTOTYPE: $
1239 CODE:
1240 eio_set_max_poll_reqs (nreqs);
893 1241
894void 1242void
895max_parallel (nthreads) 1243max_poll_time (double nseconds)
896 int nthreads
897 PROTOTYPE: $ 1244 PROTOTYPE: $
898
899int
900max_outstanding (nreqs)
901 int nreqs
902 PROTOTYPE: $
903 CODE: 1245 CODE:
904 RETVAL = max_outstanding; 1246 eio_set_max_poll_time (nseconds);
1247
1248void
1249min_parallel (unsigned int nthreads)
1250 PROTOTYPE: $
1251 CODE:
1252 eio_set_min_parallel (nthreads);
1253
1254void
1255max_parallel (unsigned int nthreads)
1256 PROTOTYPE: $
1257 CODE:
1258 eio_set_max_parallel (nthreads);
1259
1260void
1261max_idle (unsigned int nthreads)
1262 PROTOTYPE: $
1263 CODE:
1264 eio_set_max_idle (nthreads);
1265
1266void
1267idle_timeout (unsigned int seconds)
1268 PROTOTYPE: $
1269 CODE:
1270 eio_set_idle_timeout (seconds);
1271
1272void
1273max_outstanding (unsigned int maxreqs)
1274 PROTOTYPE: $
1275 CODE:
905 max_outstanding = nreqs; 1276 max_outstanding = maxreqs;
906 1277
907void 1278void
908aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1279aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
909 SV * pathname
910 int flags
911 int mode
912 SV * callback
913 PROTOTYPE: $$$;$
914 PPCODE: 1280 PPCODE:
915{ 1281{
916 dREQ; 1282 dREQ;
917 1283
918 req->type = REQ_OPEN; 1284 req->type = EIO_WD_OPEN;
919 req->data = newSVsv (pathname); 1285 req_set_path1 (req, pathname);
920 req->dataptr = SvPVbyte_nolen (req->data);
921 req->fd = flags;
922 req->mode = mode;
923 1286
924 REQ_SEND; 1287 REQ_SEND;
925} 1288}
926 1289
927void 1290void
1291aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1292 PPCODE:
1293{
1294 dREQ;
1295
1296 req->type = EIO_OPEN;
1297 req_set_path1 (req, pathname);
1298 req->int1 = flags;
1299 req->int2 = mode;
1300
1301 REQ_SEND;
1302}
1303
1304void
928aio_close (fh,callback=&PL_sv_undef) 1305aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
929 SV * fh
930 SV * callback
931 PROTOTYPE: $;$
932 ALIAS: 1306 ALIAS:
933 aio_close = REQ_CLOSE
934 aio_fsync = REQ_FSYNC 1307 aio_fsync = EIO_FSYNC
935 aio_fdatasync = REQ_FDATASYNC 1308 aio_fdatasync = EIO_FDATASYNC
1309 aio_syncfs = EIO_SYNCFS
936 PPCODE: 1310 PPCODE:
937{ 1311{
1312 int fd = s_fileno_croak (fh, 0);
938 dREQ; 1313 dREQ;
939 1314
940 req->type = ix; 1315 req->type = ix;
941 req->fh = newSVsv (fh); 1316 req->sv1 = newSVsv (fh);
942 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1317 req->int1 = fd;
943 1318
944 REQ_SEND (req); 1319 REQ_SEND;
945} 1320}
946 1321
947void 1322void
1323aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1324 PPCODE:
1325{
1326 int fd = s_fileno_croak (fh, 0);
1327 dREQ;
1328
1329 req->type = EIO_SYNC_FILE_RANGE;
1330 req->sv1 = newSVsv (fh);
1331 req->int1 = fd;
1332 req->offs = offset;
1333 req->size = nbytes;
1334 req->int2 = flags;
1335
1336 REQ_SEND;
1337}
1338
1339void
1340aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1341 PPCODE:
1342{
1343 int fd = s_fileno_croak (fh, 0);
1344 dREQ;
1345
1346 req->type = EIO_FALLOCATE;
1347 req->sv1 = newSVsv (fh);
1348 req->int1 = fd;
1349 req->int2 = mode;
1350 req->offs = offset;
1351 req->size = len;
1352
1353 REQ_SEND;
1354}
1355
1356void
1357aio_close (SV *fh, SV *callback = &PL_sv_undef)
1358 PPCODE:
1359{
1360 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1361 int fd = s_fileno_croak (fh, 0);
1362 dREQ;
1363
1364 if (expect_false (close_fd < 0))
1365 {
1366 int pipefd [2];
1367
1368 if (
1369#ifdef _WIN32
1370 _pipe (pipefd, 1, _O_BINARY) < 0
1371#else
1372 pipe (pipefd) < 0
1373 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1374#endif
1375 || close (pipefd [1]) < 0
1376 )
1377 abort (); /*D*/
1378
1379 close_fd = pipefd [0];
1380 }
1381
1382 req->type = EIO_DUP2;
1383 req->int1 = close_fd;
1384 req->sv2 = newSVsv (fh);
1385 req->int2 = fd;
1386
1387 REQ_SEND;
1388}
1389
1390void
1391aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1392 PPCODE:
1393{
1394 int fd = s_fileno_croak (fh, 0);
1395 dREQ;
1396
1397 req->type = EIO_SEEK;
1398 req->sv1 = newSVsv (fh);
1399 req->int1 = fd;
1400 req->offs = SvVAL64 (offset);
1401 req->int2 = whence;
1402
1403 REQ_SEND;
1404}
1405
1406void
948aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1407aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
949 SV * fh
950 UV offset
951 UV length
952 SV * data
953 UV dataoffset
954 SV * callback
955 ALIAS: 1408 ALIAS:
956 aio_read = REQ_READ 1409 aio_read = EIO_READ
957 aio_write = REQ_WRITE 1410 aio_write = EIO_WRITE
958 PROTOTYPE: $$$$$;$
959 PPCODE: 1411 PPCODE:
960{ 1412{
961 aio_req req;
962 STRLEN svlen; 1413 STRLEN svlen;
1414 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
963 char *svptr = SvPVbyte (data, svlen); 1415 char *svptr = SvPVbyte (data, svlen);
964 1416 UV len = SvUV (length);
965 SvUPGRADE (data, SVt_PV);
966 SvPOK_on (data);
967 1417
968 if (dataoffset < 0) 1418 if (dataoffset < 0)
969 dataoffset += svlen; 1419 dataoffset += svlen;
970 1420
971 if (dataoffset < 0 || dataoffset > svlen) 1421 if (dataoffset < 0 || dataoffset > svlen)
972 croak ("data offset outside of string"); 1422 croak ("dataoffset outside of data scalar");
973 1423
974 if (ix == REQ_WRITE) 1424 if (ix == EIO_WRITE)
975 { 1425 {
976 /* write: check length and adjust. */ 1426 /* write: check length and adjust. */
977 if (length < 0 || length + dataoffset > svlen) 1427 if (!SvOK (length) || len + dataoffset > svlen)
978 length = svlen - dataoffset; 1428 len = svlen - dataoffset;
979 } 1429 }
980 else 1430 else
981 { 1431 {
982 /* read: grow scalar as necessary */ 1432 /* read: check type and grow scalar as necessary */
1433 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
983 svptr = SvGROW (data, length + dataoffset); 1434 svptr = sv_grow (data, len + dataoffset + 1);
1435 else if (SvCUR (data) < len + dataoffset)
1436 croak ("length + dataoffset outside of scalar, and cannot grow");
984 } 1437 }
985
986 if (length < 0)
987 croak ("length must not be negative");
988 1438
989 { 1439 {
990 dREQ; 1440 dREQ;
991 1441
992 req->type = ix; 1442 req->type = ix;
993 req->fh = newSVsv (fh); 1443 req->sv1 = newSVsv (fh);
994 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1444 req->int1 = fd;
995 : IoOFP (sv_2io (fh))); 1445 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
996 req->offset = offset; 1446 req->size = len;
997 req->length = length;
998 req->data = SvREFCNT_inc (data); 1447 req->sv2 = SvREFCNT_inc (data);
999 req->dataptr = (char *)svptr + dataoffset; 1448 req->ptr2 = (char *)svptr + dataoffset;
1449 req->stroffset = dataoffset;
1000 1450
1001 if (!SvREADONLY (data)) 1451 if (!SvREADONLY (data))
1002 { 1452 {
1003 SvREADONLY_on (data); 1453 SvREADONLY_on (data);
1004 req->data2ptr = (void *)data; 1454 req->flags |= FLAG_SV2_RO_OFF;
1005 } 1455 }
1006 1456
1007 REQ_SEND; 1457 REQ_SEND;
1008 } 1458 }
1009} 1459}
1010 1460
1011void 1461void
1012aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1462aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1013 SV * out_fh 1463 ALIAS:
1014 SV * in_fh 1464 aio_ioctl = EIO_IOCTL
1015 UV in_offset 1465 aio_fcntl = EIO_FCNTL
1016 UV length
1017 SV * callback
1018 PROTOTYPE: $$$$;$
1019 PPCODE: 1466 PPCODE:
1020{ 1467{
1021 dREQ; 1468 int fd = s_fileno_croak (fh, 0);
1469 char *svptr;
1022 1470
1023 req->type = REQ_SENDFILE; 1471 if (SvPOK (arg) || !SvNIOK (arg))
1024 req->fh = newSVsv (out_fh);
1025 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1026 req->fh2 = newSVsv (in_fh);
1027 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1028 req->offset = in_offset;
1029 req->length = length;
1030
1031 REQ_SEND;
1032}
1033
1034void
1035aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1036 SV * fh
1037 UV offset
1038 IV length
1039 SV * callback
1040 PROTOTYPE: $$$;$
1041 PPCODE:
1042{
1043 dREQ;
1044
1045 req->type = REQ_READAHEAD;
1046 req->fh = newSVsv (fh);
1047 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1048 req->offset = offset;
1049 req->length = length;
1050
1051 REQ_SEND;
1052}
1053
1054void
1055aio_stat (fh_or_path,callback=&PL_sv_undef)
1056 SV * fh_or_path
1057 SV * callback
1058 ALIAS:
1059 aio_stat = REQ_STAT
1060 aio_lstat = REQ_LSTAT
1061 PPCODE:
1062{
1063 dREQ;
1064
1065 New (0, req->statdata, 1, Stat_t);
1066 if (!req->statdata)
1067 { 1472 {
1068 req_free (req); 1473 STRLEN svlen;
1069 croak ("out of memory during aio_req->statdata allocation"); 1474 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1070 } 1475#ifdef IOCPARM_LEN
1476 STRLEN need = IOCPARM_LEN (request);
1477#else
1478 STRLEN need = 256;
1479#endif
1071 1480
1072 if (SvPOK (fh_or_path)) 1481 if (svlen < need)
1073 { 1482 svptr = SvGROW (arg, need);
1074 req->type = ix;
1075 req->data = newSVsv (fh_or_path);
1076 req->dataptr = SvPVbyte_nolen (req->data);
1077 } 1483 }
1078 else 1484 else
1485 svptr = (char *)SvIV (arg);
1486
1079 { 1487 {
1488 dREQ;
1489
1080 req->type = REQ_FSTAT; 1490 req->type = ix;
1081 req->fh = newSVsv (fh_or_path); 1491 req->sv1 = newSVsv (fh);
1082 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1492 req->int1 = fd;
1493 req->int2 = (long)request;
1494 req->sv2 = SvREFCNT_inc (arg);
1495 req->ptr2 = svptr;
1496
1497 REQ_SEND;
1083 } 1498 }
1499}
1500
1501void
1502aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1503 ALIAS:
1504 aio_readlink = EIO_READLINK
1505 aio_realpath = EIO_REALPATH
1506 PPCODE:
1507{
1508 dREQ;
1509
1510 req->type = ix;
1511 req_set_path1 (req, pathname);
1084 1512
1085 REQ_SEND; 1513 REQ_SEND;
1086} 1514}
1087 1515
1088void 1516void
1089aio_unlink (pathname,callback=&PL_sv_undef) 1517aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1090 SV * pathname 1518 PPCODE:
1091 SV * callback 1519{
1520 int ifd = s_fileno_croak (in_fh , 0);
1521 int ofd = s_fileno_croak (out_fh, 1);
1522 dREQ;
1523
1524 req->type = EIO_SENDFILE;
1525 req->sv1 = newSVsv (out_fh);
1526 req->int1 = ofd;
1527 req->sv2 = newSVsv (in_fh);
1528 req->int2 = ifd;
1529 req->offs = in_offset;
1530 req->size = length;
1531
1532 REQ_SEND;
1533}
1534
1535void
1536aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1537 PPCODE:
1538{
1539 int fd = s_fileno_croak (fh, 0);
1540 dREQ;
1541
1542 req->type = EIO_READAHEAD;
1543 req->sv1 = newSVsv (fh);
1544 req->int1 = fd;
1545 req->offs = offset;
1546 req->size = length;
1547
1548 REQ_SEND;
1549}
1550
1551void
1552aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1092 ALIAS: 1553 ALIAS:
1554 aio_stat = EIO_STAT
1555 aio_lstat = EIO_LSTAT
1556 aio_statvfs = EIO_STATVFS
1557 PPCODE:
1558{
1559 dREQ;
1560
1561 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1562
1563 REQ_SEND;
1564}
1565
1566UV
1567major (UV dev)
1568 ALIAS:
1569 minor = 1
1570 CODE:
1571 RETVAL = ix ? minor (dev) : major (dev);
1572 OUTPUT:
1573 RETVAL
1574
1575UV
1576makedev (UV maj, UV min)
1577 CODE:
1578 RETVAL = makedev (maj, min);
1579 OUTPUT:
1580 RETVAL
1581
1582void
1583aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1584 PPCODE:
1585{
1586 dREQ;
1587
1588 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1589 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1590 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1591
1592 REQ_SEND;
1593}
1594
1595void
1596aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1597 PPCODE:
1598{
1599 dREQ;
1600
1601 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1602 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1603
1604 REQ_SEND;
1605}
1606
1607void
1608aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1609 PPCODE:
1610{
1611 dREQ;
1612
1613 req->int2 = mode;
1614 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1615
1616 REQ_SEND;
1617}
1618
1619void
1620aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1621 PPCODE:
1622{
1623 dREQ;
1624
1625 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1626 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1627 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1628
1629 REQ_SEND;
1630}
1631
1632void
1633aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1634 PPCODE:
1635{
1636 dREQ;
1637
1638 req->type = EIO_READDIR;
1639 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1640
1641 if (flags & EIO_READDIR_DENTS)
1642 req->int1 |= EIO_READDIR_CUSTOM2;
1643
1644 req_set_path1 (req, pathname);
1645
1646 REQ_SEND;
1647}
1648
1649void
1650aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1651 PPCODE:
1652{
1653 dREQ;
1654
1655 req->type = EIO_MKDIR;
1656 req->int2 = mode;
1657 req_set_path1 (req, pathname);
1658
1659 REQ_SEND;
1660}
1661
1662void
1663aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1664 ALIAS:
1093 aio_unlink = REQ_UNLINK 1665 aio_unlink = EIO_UNLINK
1094 aio_rmdir = REQ_RMDIR 1666 aio_rmdir = EIO_RMDIR
1095 aio_readdir = REQ_READDIR 1667 aio_readdir = EIO_READDIR
1096 PPCODE: 1668 PPCODE:
1097{ 1669{
1098 dREQ; 1670 dREQ;
1099 1671
1100 req->type = ix; 1672 req->type = ix;
1101 req->data = newSVsv (pathname); 1673 req_set_path1 (req, pathname);
1102 req->dataptr = SvPVbyte_nolen (req->data); 1674
1103
1104 REQ_SEND; 1675 REQ_SEND;
1105} 1676}
1106 1677
1107void 1678void
1108aio_link (oldpath,newpath,callback=&PL_sv_undef) 1679aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1109 SV * oldpath
1110 SV * newpath
1111 SV * callback
1112 ALIAS: 1680 ALIAS:
1113 aio_link = REQ_LINK 1681 aio_link = EIO_LINK
1114 aio_symlink = REQ_SYMLINK 1682 aio_symlink = EIO_SYMLINK
1115 aio_rename = REQ_RENAME 1683 aio_rename = EIO_RENAME
1116 PPCODE: 1684 PPCODE:
1117{ 1685{
1686 eio_wd wd2 = 0;
1118 dREQ; 1687 dREQ;
1119 1688
1120 req->type = ix; 1689 req->type = ix;
1121 req->fh = newSVsv (oldpath); 1690 req_set_path1 (req, oldpath);
1122 req->data2ptr = SvPVbyte_nolen (req->fh); 1691 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1123 req->data = newSVsv (newpath); 1692 req->int3 = (long)wd2;
1124 req->dataptr = SvPVbyte_nolen (req->data);
1125 1693
1126 REQ_SEND; 1694 REQ_SEND;
1127} 1695}
1128 1696
1129void 1697void
1130aio_sleep (delay,callback=&PL_sv_undef) 1698aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1131 double delay
1132 SV * callback
1133 PPCODE: 1699 PPCODE:
1134{ 1700{
1701 eio_wd wd2 = 0;
1135 dREQ; 1702 dREQ;
1136 1703
1137 req->type = REQ_SLEEP; 1704 req->type = EIO_RENAME;
1138 req->fd = delay < 0. ? 0 : delay; 1705 req_set_path1 (req, oldpath);
1139 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1706 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1140 1707 req->int2 = flags;
1708 req->int3 = (long)wd2;
1709
1141 REQ_SEND; 1710 REQ_SEND;
1142} 1711}
1143 1712
1144void 1713void
1145aio_group (callback=&PL_sv_undef) 1714aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1146 SV * callback 1715 PPCODE:
1147 PROTOTYPE: ;& 1716{
1717 dREQ;
1718
1719 req->type = EIO_MKNOD;
1720 req->int2 = (mode_t)mode;
1721 req->offs = dev;
1722 req_set_path1 (req, pathname);
1723
1724 REQ_SEND;
1725}
1726
1727void
1728aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1729 ALIAS:
1730 aio_mtouch = EIO_MTOUCH
1731 aio_msync = EIO_MSYNC
1148 PPCODE: 1732 PPCODE:
1149{ 1733{
1734 STRLEN svlen;
1735 char *svptr = SvPVbyte (data, svlen);
1736 UV len = SvUV (length);
1737
1738 if (flags < 0)
1739 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1740
1741 if (offset < 0)
1742 offset += svlen;
1743
1744 if (offset < 0 || offset > svlen)
1745 croak ("offset outside of scalar");
1746
1747 if (!SvOK (length) || len + offset > svlen)
1748 len = svlen - offset;
1749
1750 {
1751 dREQ;
1752
1753 req->type = ix;
1754 req->sv2 = SvREFCNT_inc (data);
1755 req->ptr2 = (char *)svptr + offset;
1756 req->size = len;
1757 req->int1 = flags;
1758
1759 REQ_SEND;
1760 }
1761}
1762
1763void
1764aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1765 PPCODE:
1766{
1767 STRLEN svlen;
1768 char *svptr = SvPVbyte (data, svlen);
1769 UV len = SvUV (length);
1770
1771 if (offset < 0)
1772 offset += svlen;
1773
1774 if (offset < 0 || offset > svlen)
1775 croak ("offset outside of scalar");
1776
1777 if (!SvOK (length) || len + offset > svlen)
1778 len = svlen - offset;
1779
1780 {
1781 dREQ;
1782
1783 req->type = EIO_MLOCK;
1784 req->sv2 = SvREFCNT_inc (data);
1785 req->ptr2 = (char *)svptr + offset;
1786 req->size = len;
1787
1788 REQ_SEND;
1789 }
1790}
1791
1792void
1793aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1794 PPCODE:
1795{
1796 dREQ;
1797
1798 req->type = EIO_MLOCKALL;
1799 req->int1 = flags;
1800
1801 REQ_SEND;
1802}
1803
1804void
1805aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1806 PPCODE:
1807{
1808 int fd = s_fileno_croak (fh, 0);
1150 dREQ; 1809 dREQ;
1810
1811 req->type = EIO_CUSTOM;
1812 req->sv1 = newSVsv (fh);
1813 req->int1 = fd;
1814
1815 req->feed = fiemap;
1816#if HAVE_FIEMAP
1817 /* keep our fingers crossed that the next two types are 64 bit */
1818 req->offs = start;
1819 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1820 req->int2 = flags;
1821 req->int3 = SvOK (count) ? SvIV (count) : -1;
1822#endif
1823
1824 REQ_SEND;
1825}
1826
1827void
1828aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1829 PPCODE:
1830{
1831 char *svptr = 0;
1832
1833 sv_clear_foreign (data);
1834
1835 if (length) /* known length, directly read into scalar */
1836 {
1837 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1838 svptr = sv_grow (data, length + 1);
1839 else if (SvCUR (data) < length)
1840 croak ("length outside of scalar, and cannot grow");
1841 else
1842 svptr = SvPVbyte_nolen (data);
1843 }
1844
1845 {
1846 dREQ;
1847
1848 req->type = EIO_SLURP;
1849 req_set_path1 (req, pathname);
1850 req->offs = offset;
1851 req->size = length;
1852 req->sv2 = SvREFCNT_inc (data);
1853 req->ptr2 = svptr;
1854
1855 if (!SvREADONLY (data))
1856 {
1857 SvREADONLY_on (data);
1858 req->flags |= FLAG_SV2_RO_OFF;
1859 }
1860
1861 REQ_SEND;
1862 }
1863}
1864
1865void
1866aio_busy (double delay, SV *callback = &PL_sv_undef)
1867 PPCODE:
1868{
1869 dREQ;
1870
1871 req->type = EIO_BUSY;
1872 req->nv1 = delay < 0. ? 0. : delay;
1873
1874 REQ_SEND;
1875}
1876
1877void
1878aio_group (SV *callback = &PL_sv_undef)
1879 PPCODE:
1880{
1881 dREQ;
1882
1151 req->type = REQ_GROUP; 1883 req->type = EIO_GROUP;
1152 req->grp_next = req;
1153 req->grp_prev = req;
1154 1884
1885 PUTBACK;
1155 req_send (req); 1886 req_submit (req);
1887 SPAGAIN;
1888
1156 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1889 XPUSHs (req_sv (req, aio_grp_stash));
1157} 1890}
1891
1892void
1893aio_nop (SV *callback = &PL_sv_undef)
1894 ALIAS:
1895 aio_nop = EIO_NOP
1896 aio_sync = EIO_SYNC
1897 PPCODE:
1898{
1899 dREQ;
1900
1901 req->type = ix;
1902
1903 REQ_SEND;
1904}
1905
1906int
1907aioreq_pri (int pri = NO_INIT)
1908 CODE:
1909 RETVAL = next_pri;
1910 if (items > 0)
1911 {
1912 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1913 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1914 next_pri = pri;
1915 }
1916 OUTPUT:
1917 RETVAL
1918
1919void
1920aioreq_nice (int nice = 0)
1921 CODE:
1922 nice = next_pri - nice;
1923 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1924 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1925 next_pri = nice;
1158 1926
1159void 1927void
1160flush () 1928flush ()
1161 PROTOTYPE:
1162 CODE: 1929 CODE:
1163 while (nreqs) 1930 while (eio_nreqs ())
1164 { 1931 {
1165 poll_wait (); 1932 poll_wait ();
1166 poll_cb (); 1933 poll_cb ();
1167 } 1934 }
1168 1935
1169void 1936int
1170poll() 1937poll ()
1171 PROTOTYPE:
1172 CODE: 1938 CODE:
1173 if (nreqs)
1174 {
1175 poll_wait (); 1939 poll_wait ();
1176 poll_cb (); 1940 RETVAL = poll_cb ();
1177 }
1178
1179int
1180poll_fileno()
1181 PROTOTYPE:
1182 CODE:
1183 RETVAL = respipe [0];
1184 OUTPUT: 1941 OUTPUT:
1185 RETVAL 1942 RETVAL
1186 1943
1187int 1944int
1945poll_fileno ()
1946 CODE:
1947 RETVAL = s_epipe_fd (&respipe);
1948 OUTPUT:
1949 RETVAL
1950
1951int
1188poll_cb(...) 1952poll_cb (...)
1189 PROTOTYPE: 1953 PROTOTYPE:
1190 CODE: 1954 CODE:
1191 RETVAL = poll_cb (); 1955 RETVAL = poll_cb ();
1192 OUTPUT: 1956 OUTPUT:
1193 RETVAL 1957 RETVAL
1194 1958
1195void 1959void
1196poll_wait() 1960poll_wait ()
1197 PROTOTYPE:
1198 CODE: 1961 CODE:
1199 if (nreqs)
1200 poll_wait (); 1962 poll_wait ();
1201 1963
1202int 1964int
1203nreqs() 1965nreqs ()
1204 PROTOTYPE:
1205 CODE: 1966 CODE:
1206 RETVAL = nreqs; 1967 RETVAL = eio_nreqs ();
1207 OUTPUT: 1968 OUTPUT:
1208 RETVAL 1969 RETVAL
1209 1970
1971int
1972nready ()
1973 CODE:
1974 RETVAL = eio_nready ();
1975 OUTPUT:
1976 RETVAL
1977
1978int
1979npending ()
1980 CODE:
1981 RETVAL = eio_npending ();
1982 OUTPUT:
1983 RETVAL
1984
1985int
1986nthreads ()
1987 CODE:
1988 RETVAL = eio_nthreads ();
1989 OUTPUT:
1990 RETVAL
1991
1992int
1993fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1994 CODE:
1995 RETVAL = posix_fadvise (fh, offset, length, advice);
1996 OUTPUT:
1997 RETVAL
1998
1999IV
2000sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2001 CODE:
2002 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2003 OUTPUT:
2004 RETVAL
2005
2006void
2007mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2008 PPCODE:
2009 sv_clear_foreign (scalar);
2010{
2011 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2012 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2013 if (addr == (void *)-1)
2014 XSRETURN_NO;
2015
2016 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2017
2018 if (!(prot & PROT_WRITE))
2019 SvREADONLY_on (scalar);
2020
2021 XSRETURN_YES;
2022}
2023
2024void
2025munmap (SV *scalar)
2026 CODE:
2027 sv_clear_foreign (scalar);
2028
2029int
2030madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2031 ALIAS:
2032 mprotect = 1
2033 CODE:
2034{
2035 STRLEN svlen;
2036 void *addr = SvPVbyte (scalar, svlen);
2037 STRLEN len = SvUV (length);
2038
2039 if (offset < 0)
2040 offset += svlen;
2041
2042 if (offset < 0 || offset > svlen)
2043 croak ("offset outside of scalar");
2044
2045 if (!SvOK (length) || len + offset > svlen)
2046 len = svlen - offset;
2047
2048 addr = (void *)(((intptr_t)addr) + offset);
2049 eio_page_align (&addr, &len);
2050
2051 switch (ix)
2052 {
2053 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2054 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2055 }
2056}
2057 OUTPUT:
2058 RETVAL
2059
2060int
2061munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2062 CODE:
2063{
2064 STRLEN svlen;
2065 void *addr = SvPVbyte (scalar, svlen);
2066 size_t len = SvUV (length);
2067
2068 if (offset < 0)
2069 offset += svlen;
2070
2071 if (offset < 0 || offset > svlen)
2072 croak ("offset outside of scalar");
2073
2074 if (!SvOK (length) || len + offset > svlen)
2075 len = svlen - offset;
2076
2077 addr = (void *)(((intptr_t)addr) + offset);
2078 eio_page_align (&addr, &len);
2079#if _POSIX_MEMLOCK_RANGE
2080 RETVAL = munlock (addr, len);
2081#else
2082 RETVAL = EIO_ENOSYS ();
2083#endif
2084}
2085 OUTPUT:
2086 RETVAL
2087
2088int
2089munlockall ()
2090 CODE:
2091#if _POSIX_MEMLOCK
2092 munlockall ();
2093#else
2094 RETVAL = EIO_ENOSYS ();
2095#endif
2096 OUTPUT:
2097 RETVAL
2098
2099int
2100splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2101 CODE:
2102{
2103#if HAVE_LINUX_SPLICE
2104 loff_t off_in_, off_out_;
2105 RETVAL = splice (
2106 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2107 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2108 length, flags
2109 );
2110#else
2111 RETVAL = EIO_ENOSYS ();
2112#endif
2113}
2114 OUTPUT:
2115 RETVAL
2116
2117int
2118tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2119 CODE:
2120#if HAVE_LINUX_SPLICE
2121 RETVAL = tee (rfh, wfh, length, flags);
2122#else
2123 RETVAL = EIO_ENOSYS ();
2124#endif
2125 OUTPUT:
2126 RETVAL
2127
2128int
2129pipesize (aio_rfd rfh, int new_size = -1)
2130 PROTOTYPE: $;$
2131 CODE:
2132#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2133 if (new_size >= 0)
2134 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2135 else
2136 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2137#else
2138 errno = ENOSYS;
2139 RETVAL = -1;
2140#endif
2141 OUTPUT:
2142 RETVAL
2143
2144void
2145pipe2 (int flags = 0)
2146 PROTOTYPE: ;$
2147 PPCODE:
2148{
2149 int fd[2];
2150 int res;
2151
2152 if (flags)
2153#if HAVE_PIPE2
2154 res = pipe2 (fd, flags);
2155#else
2156 res = (errno = ENOSYS, -1);
2157#endif
2158 else
2159 res = pipe (fd);
2160
2161 if (!res)
2162 {
2163 EXTEND (SP, 2);
2164 PUSHs (newmortalFH (fd[0], O_RDONLY));
2165 PUSHs (newmortalFH (fd[1], O_WRONLY));
2166 }
2167}
2168
2169void
2170eventfd (unsigned int initval = 0, int flags = 0)
2171 PPCODE:
2172{
2173 int fd;
2174#if HAVE_EVENTFD
2175 fd = eventfd (initval, flags);
2176#else
2177 fd = (errno = ENOSYS, -1);
2178#endif
2179
2180 XPUSHs (newmortalFH (fd, O_RDWR));
2181}
2182
2183UV
2184get_fdlimit ()
2185 CODE:
2186#if HAVE_RLIMITS
2187 struct rlimit rl;
2188 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2189 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2190#endif
2191 XSRETURN_UNDEF;
2192 OUTPUT:
2193 RETVAL
2194
2195void
2196min_fdlimit (UV limit = 0x7fffffffU)
2197 CODE:
2198{
2199#if HAVE_RLIMITS
2200 struct rlimit rl;
2201 rlim_t orig_rlim_max;
2202 UV bit;
2203
2204 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2205 goto fail;
2206
2207 if (rl.rlim_cur == RLIM_INFINITY)
2208 XSRETURN_YES;
2209
2210 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2211
2212 if (rl.rlim_cur < limit)
2213 {
2214 rl.rlim_cur = limit;
2215
2216 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2217 rl.rlim_max = rl.rlim_cur;
2218 }
2219
2220 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2221 XSRETURN_YES;
2222
2223 if (errno == EPERM)
2224 {
2225 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2226 /* our limit overflows a system-wide limit */
2227 /* try an adaptive algorithm, but do not lower the hardlimit */
2228 rl.rlim_max = 0;
2229 for (bit = 0x40000000U; bit; bit >>= 1)
2230 {
2231 rl.rlim_max |= bit;
2232 rl.rlim_cur = rl.rlim_max;
2233
2234 /* nevr decrease the hard limit */
2235 if (rl.rlim_max < orig_rlim_max)
2236 break;
2237
2238 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2239 rl.rlim_max &= ~bit; /* too high, remove bit again */
2240 }
2241
2242 /* now, raise the soft limit to the max permitted */
2243 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2244 {
2245 rl.rlim_cur = rl.rlim_max;
2246 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2247 errno = EPERM;
2248 }
2249 }
2250#endif
2251 fail:
2252 XSRETURN_UNDEF;
2253}
2254
2255void _on_next_submit (SV *cb)
2256 CODE:
2257 SvREFCNT_dec (on_next_submit);
2258 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2259
2260PROTOTYPES: DISABLE
2261
2262MODULE = IO::AIO PACKAGE = IO::AIO::WD
2263
2264BOOT:
2265{
2266 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2267 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2268}
2269
2270void
2271DESTROY (SV *self)
2272 CODE:
2273{
2274 aio_wd wd = SvAIO_WD (self);
2275#if HAVE_AT
2276 {
2277 SV *callback = &PL_sv_undef;
2278 dREQ; /* clobbers next_pri :/ */
2279 next_pri = req->pri; /* restore next_pri */
2280 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2281 req->type = EIO_WD_CLOSE;
2282 req->wd = wd;
2283 REQ_SEND;
2284 }
2285#else
2286 eio_wd_close_sync (wd);
2287#endif
2288}
2289
1210MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2290MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1211 2291
1212void 2292void
1213cancel (aio_req_ornot req) 2293cancel (aio_req_ornot req)
1214 PROTOTYPE:
1215 CODE: 2294 CODE:
1216 req_cancel (req); 2295 eio_cancel (req);
2296
2297void
2298cb (aio_req_ornot req, SV *callback = NO_INIT)
2299 PPCODE:
2300{
2301 if (GIMME_V != G_VOID)
2302 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2303
2304 if (items > 1)
2305 {
2306 SV *cb_cv = get_cb (callback);
2307
2308 SvREFCNT_dec (req->callback);
2309 req->callback = SvREFCNT_inc (cb_cv);
2310 }
2311}
1217 2312
1218MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2313MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1219 2314
1220void 2315void
1221add (aio_req grp, ...) 2316add (aio_req grp, ...)
1222 PROTOTYPE: $;@
1223 PPCODE: 2317 PPCODE:
1224{ 2318{
1225 int i; 2319 int i;
2320
2321 if (grp->int1 == 2)
2322 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1226 2323
1227 for (i = 1; i < items; ++i ) 2324 for (i = 1; i < items; ++i )
1228 { 2325 {
1229 aio_req req = SvAIO_REQ (ST (i)); 2326 aio_req req;
1230
1231 req->grp_prev = grp;
1232 req->grp_next = grp->grp_next;
1233 grp->grp_next->grp_prev = req;
1234 grp->grp_next = req;
1235
1236 req->grp = grp;
1237 2327
1238 if (GIMME_V != G_VOID) 2328 if (GIMME_V != G_VOID)
1239 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2329 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2330
2331 req = SvAIO_REQ (ST (i));
2332
2333 if (req)
2334 eio_grp_add (grp, req);
1240 } 2335 }
1241} 2336}
1242 2337
2338void
2339cancel_subs (aio_req_ornot req)
2340 CODE:
2341 req_cancel_subs (req);
2342
2343void
2344result (aio_req grp, ...)
2345 CODE:
2346{
2347 int i;
2348 AV *av;
2349
2350 grp->errorno = errno;
2351
2352 av = newAV ();
2353 av_extend (av, items - 1);
2354
2355 for (i = 1; i < items; ++i )
2356 av_push (av, newSVsv (ST (i)));
2357
2358 SvREFCNT_dec (grp->sv1);
2359 grp->sv1 = (SV *)av;
2360}
2361
2362void
2363errno (aio_req grp, int errorno = errno)
2364 CODE:
2365 grp->errorno = errorno;
2366
2367void
2368limit (aio_req grp, int limit)
2369 CODE:
2370 eio_grp_limit (grp, limit);
2371
2372void
2373feed (aio_req grp, SV *callback = &PL_sv_undef)
2374 CODE:
2375{
2376 SvREFCNT_dec (grp->sv2);
2377 grp->sv2 = newSVsv (callback);
2378 grp->feed = aio_grp_feed;
2379
2380 if (grp->int2 <= 0)
2381 grp->int2 = 2;
2382
2383 eio_grp_limit (grp, grp->int2);
2384}
2385

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