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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.152 by root, Tue Jul 14 00:32:27 2009 UTC vs.
Revision 1.184 by root, Tue Jul 5 20:34:42 2011 UTC

… …
11#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h> 12#include <stdlib.h>
13#include <errno.h> 13#include <errno.h>
14#include <sys/types.h> 14#include <sys/types.h>
15#include <sys/stat.h> 15#include <sys/stat.h>
16#include <sys/statvfs.h>
16#include <limits.h> 17#include <limits.h>
17#include <fcntl.h> 18#include <fcntl.h>
18#include <sched.h> 19#include <sched.h>
20
21#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22# include <sys/mman.h>
23#endif
19 24
20/* perl namespace pollution */ 25/* perl namespace pollution */
21#undef VERSION 26#undef VERSION
22 27
23#ifdef _WIN32 28#ifdef _WIN32
… …
99#define expect_false(expr) expect ((expr) != 0, 0) 104#define expect_false(expr) expect ((expr) != 0, 0)
100#define expect_true(expr) expect ((expr) != 0, 1) 105#define expect_true(expr) expect ((expr) != 0, 1)
101 106
102/*****************************************************************************/ 107/*****************************************************************************/
103 108
104static HV *stash;
105typedef SV SV8; /* byte-sv, used for argument-checking */ 109typedef SV SV8; /* byte-sv, used for argument-checking */
106typedef int aio_rfd; /* read file desriptor */ 110typedef int aio_rfd; /* read file desriptor */
107typedef int aio_wfd; /* write file descriptor */ 111typedef int aio_wfd; /* write file descriptor */
108 112
109#define AIO_REQ_KLASS "IO::AIO::REQ" 113static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
110#define AIO_GRP_KLASS "IO::AIO::GRP"
111 114
112#define EIO_REQ_MEMBERS \ 115#define EIO_REQ_MEMBERS \
113 SV *callback; \ 116 SV *callback; \
114 SV *sv1, *sv2; \ 117 SV *sv1, *sv2; \
115 STRLEN stroffset; \ 118 STRLEN stroffset; \
116 SV *self; 119 SV *self;
117 120
118#define EIO_NO_WRAPPERS 1 121#define EIO_NO_WRAPPERS 1
119 122
123#include "libeio/config.h"
120#include "libeio/eio.h" 124#include "libeio/eio.h"
125
126/* Linux/others */
127#ifndef O_ASYNC
128# define O_ASYNC 0
129#endif
130#ifndef O_DIRECT
131# define O_DIRECT 0
132#endif
133#ifndef O_NOATIME
134# define O_NOATIME 0
135#endif
136
137/* POSIX */
138#ifndef O_CLOEXEC
139# define O_CLOEXEC 0
140#endif
141#ifndef O_NOFOLLOW
142# define O_NOFOLLOW 0
143#endif
144#ifndef O_NOCTTY
145# define O_NOCTTY 0
146#endif
147#ifndef O_NONBLOCK
148# define O_NONBLOCK 0
149#endif
150#ifndef O_EXEC
151# define O_EXEC 0
152#endif
153#ifndef O_SEARCH
154# define O_SEARCH 0
155#endif
156#ifndef O_DIRECTORY
157# define O_DIRECTORY 0
158#endif
159#ifndef O_DSYNC
160# define O_DSYNC 0
161#endif
162#ifndef O_RSYNC
163# define O_RSYNC 0
164#endif
165#ifndef O_SYNC
166# define O_SYNC 0
167#endif
168#ifndef O_TTY_INIT
169# define O_TTY_INIT 0
170#endif
121 171
122#ifndef POSIX_FADV_NORMAL 172#ifndef POSIX_FADV_NORMAL
123# define POSIX_FADV_NORMAL 0 173# define POSIX_FADV_NORMAL 0
124# define NO_FADVISE 1
125#endif 174#endif
126
127#ifndef POSIX_FADV_SEQUENTIAL 175#ifndef POSIX_FADV_SEQUENTIAL
128# define POSIX_FADV_SEQUENTIAL 0 176# define POSIX_FADV_SEQUENTIAL 0
129#endif 177#endif
130
131#ifndef POSIX_FADV_RANDOM 178#ifndef POSIX_FADV_RANDOM
132# define POSIX_FADV_RANDOM 0 179# define POSIX_FADV_RANDOM 0
133#endif 180#endif
134
135#ifndef POSIX_FADV_NOREUSE 181#ifndef POSIX_FADV_NOREUSE
136# define POSIX_FADV_NOREUSE 0 182# define POSIX_FADV_NOREUSE 0
137#endif 183#endif
138
139#ifndef POSIX_FADV_WILLNEED 184#ifndef POSIX_FADV_WILLNEED
140# define POSIX_FADV_WILLNEED 0 185# define POSIX_FADV_WILLNEED 0
141#endif 186#endif
142
143#ifndef POSIX_FADV_DONTNEED 187#ifndef POSIX_FADV_DONTNEED
144# define POSIX_FADV_DONTNEED 0 188# define POSIX_FADV_DONTNEED 0
189#endif
190
191#if !HAVE_POSIX_FADVISE
192# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
193#endif
194
195#ifndef POSIX_MADV_NORMAL
196# define POSIX_MADV_NORMAL 0
197#endif
198#ifndef POSIX_MADV_SEQUENTIAL
199# define POSIX_MADV_SEQUENTIAL 0
200#endif
201#ifndef POSIX_MADV_RANDOM
202# define POSIX_MADV_RANDOM 0
203#endif
204#ifndef POSIX_MADV_WILLNEED
205# define POSIX_MADV_WILLNEED 0
206#endif
207#ifndef POSIX_MADV_DONTNEED
208# define POSIX_MADV_DONTNEED 0
209#endif
210
211#if !HAVE_POSIX_MADVISE
212# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
213#endif
214
215#ifndef PROT_NONE
216# define PROT_NONE 0
217#endif
218#ifndef PROT_READ
219# define PROT_READ 0
220#endif
221#ifndef PROT_WRITE
222# define PROT_READ 0
223#endif
224#ifndef PROT_EXEC
225# define PROT_EXEC 0
226#endif
227
228#ifndef ST_NODEV
229# define ST_NODEV 0
230#endif
231#ifndef ST_NOEXEC
232# define ST_NOEXEC 0
233#endif
234#ifndef ST_SYNCHRONOUS
235# define ST_SYNCHRONOUS 0
236#endif
237#ifndef ST_MANDLOCK
238# define ST_MANDLOCK 0
239#endif
240#ifndef ST_WRITE
241# define ST_WRITE 0
242#endif
243#ifndef ST_APPEND
244# define ST_APPEND 0
245#endif
246#ifndef ST_IMMUTABLE
247# define ST_IMMUTABLE 0
248#endif
249#ifndef ST_NOATIME
250# define ST_NOATIME 0
251#endif
252#ifndef ST_NODIRATIME
253# define ST_NODIRATIME 0
254#endif
255#ifndef ST_RELATIME
256# define ST_RELATIME 0
257#endif
258
259#ifndef S_IFIFO
260# define S_IFIFO 0
261#endif
262#ifndef S_IFCHR
263# define S_IFCHR 0
264#endif
265#ifndef S_IFBLK
266# define S_IFBLK 0
267#endif
268#ifndef S_IFLNK
269# define S_IFLNK 0
270#endif
271#ifndef S_IFREG
272# define S_IFREG 0
273#endif
274#ifndef S_IFDIR
275# define S_IFDIR 0
276#endif
277#ifndef S_IFWHT
278# define S_IFWHT 0
279#endif
280#ifndef S_IFSOCK
281# define S_IFSOCK 0
282#endif
283
284#ifndef MAP_ANONYMOUS
285# ifdef MAP_ANON
286# define MAP_ANONYMOUS MAP_ANON
287# else
288# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
289# endif
290#endif
291#ifndef MAP_HUGETLB
292# define MAP_HUGETLB 0
293#endif
294#ifndef MAP_LOCKED
295# define MAP_LOCKED 0
296#endif
297#ifndef MAP_NORESERVE
298# define MAP_NORESERVE 0
299#endif
300#ifndef MAP_POPULATE
301# define MAP_POPULATE 0
302#endif
303#ifndef MAP_NONBLOCK
304# define MAP_NONBLOCK 0
305#endif
306
307#ifndef makedev
308# define makedev(maj,min) (((maj) << 8) | (min))
309#endif
310#ifndef major
311# define major(dev) ((dev) >> 8)
312#endif
313#ifndef minor
314# define minor(dev) ((dev) & 0xff)
315#endif
316
317#ifndef PAGESIZE
318# define PAGESIZE sysconf (_SC_PAGESIZE)
145#endif 319#endif
146 320
147static int req_invoke (eio_req *req); 321static int req_invoke (eio_req *req);
148#define EIO_FINISH(req) req_invoke (req) 322#define EIO_FINISH(req) req_invoke (req)
149static void req_destroy (eio_req *grp); 323static void req_destroy (eio_req *grp);
… …
160 334
161static SV *on_next_submit; 335static SV *on_next_submit;
162static int next_pri = EIO_PRI_DEFAULT; 336static int next_pri = EIO_PRI_DEFAULT;
163static int max_outstanding; 337static int max_outstanding;
164 338
165static int respipe_osf [2], respipe [2] = { -1, -1 }; 339static s_epipe respipe;
166 340
167static void req_destroy (aio_req req); 341static void req_destroy (aio_req req);
168static void req_cancel (aio_req req); 342static void req_cancel (aio_req req);
169 343
170static void want_poll (void) 344static void want_poll (void)
171{ 345{
172 /* write a dummy byte to the pipe so fh becomes ready */ 346 /* write a dummy byte to the pipe so fh becomes ready */
173 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1); 347 s_epipe_signal (&respipe);
174} 348}
175 349
176static void done_poll (void) 350static void done_poll (void)
177{ 351{
178 /* read any signals sent by the worker threads */ 352 /* read any signals sent by the worker threads */
179 char buf [4]; 353 s_epipe_drain (&respipe);
180 while (respipe_read (respipe [0], buf, 4) == 4)
181 ;
182} 354}
183 355
184/* must be called at most once */ 356/* must be called at most once */
185static SV *req_sv (aio_req req, const char *klass) 357static SV *req_sv (aio_req req, HV *stash)
186{ 358{
187 if (!req->self) 359 if (!req->self)
188 { 360 {
189 req->self = (SV *)newHV (); 361 req->self = (SV *)newHV ();
190 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 362 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
191 } 363 }
192 364
193 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 365 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
194} 366}
195 367
196static aio_req SvAIO_REQ (SV *sv) 368static aio_req SvAIO_REQ (SV *sv)
197{ 369{
198 MAGIC *mg; 370 MAGIC *mg;
199 371
200 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 372 if (!SvROK (sv)
373 || (SvSTASH (SvRV (sv)) != aio_grp_stash
374 && SvSTASH (SvRV (sv)) != aio_req_stash
375 && !sv_derived_from (sv, "IO::AIO::REQ")))
201 croak ("object of class " AIO_REQ_KLASS " expected"); 376 croak ("object of class IO::AIO::REQ expected");
202 377
203 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 378 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
204 379
205 return mg ? (aio_req)mg->mg_ptr : 0; 380 return mg ? (aio_req)mg->mg_ptr : 0;
206} 381}
… …
212 dSP; 387 dSP;
213 388
214 ENTER; 389 ENTER;
215 SAVETMPS; 390 SAVETMPS;
216 PUSHMARK (SP); 391 PUSHMARK (SP);
217 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 392 XPUSHs (req_sv (grp, aio_grp_stash));
218 PUTBACK; 393 PUTBACK;
219 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 394 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
220 SPAGAIN; 395 SPAGAIN;
221 FREETMPS; 396 FREETMPS;
222 LEAVE; 397 LEAVE;
… …
240 } 415 }
241} 416}
242 417
243static int req_invoke (eio_req *req) 418static int req_invoke (eio_req *req)
244{ 419{
245 dSP;
246
247 if (req->flags & FLAG_SV2_RO_OFF) 420 if (req->flags & FLAG_SV2_RO_OFF)
248 SvREADONLY_off (req->sv2); 421 SvREADONLY_off (req->sv2);
249 422
250 if (!EIO_CANCELLED (req) && req->callback) 423 if (!EIO_CANCELLED (req) && req->callback)
251 { 424 {
425 dSP;
426 static SV *sv_result_cache; /* caches the result integer SV */
427 SV *sv_result;
428
252 ENTER; 429 ENTER;
253 SAVETMPS; 430 SAVETMPS;
254 PUSHMARK (SP); 431 PUSHMARK (SP);
255 EXTEND (SP, 1); 432 EXTEND (SP, 1);
433
434 /* do not recreate the result IV from scratch each time */
435 if (expect_true (sv_result_cache))
436 {
437 sv_result = sv_result_cache; sv_result_cache = 0;
438 SvIV_set (sv_result, req->result);
439 SvIOK_only (sv_result);
440 }
441 else
442 {
443 sv_result = newSViv (req->result);
444 SvREADONLY_on (sv_result);
445 }
256 446
257 switch (req->type) 447 switch (req->type)
258 { 448 {
259 case EIO_READDIR: 449 case EIO_READDIR:
260 { 450 {
… …
328 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 518 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
329 char sym [64]; 519 char sym [64];
330 int symlen; 520 int symlen;
331 521
332 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result); 522 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
333 gv_init (gv, stash, sym, symlen, 0); 523 gv_init (gv, aio_stash, sym, symlen, 0);
334 524
335 symlen = snprintf ( 525 symlen = snprintf (
336 sym, 526 sym,
337 sizeof (sym), 527 sizeof (sym),
338 "%s&=%d", 528 "%s&=%d",
… …
346 536
347 PUSHs (fh); 537 PUSHs (fh);
348 } 538 }
349 break; 539 break;
350 540
541 case EIO_STATVFS:
542 case EIO_FSTATVFS:
543 {
544 SV *rv = &PL_sv_undef;
545
546 if (req->result >= 0)
547 {
548 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
549 HV *hv = newHV ();
550
551 rv = sv_2mortal (newRV_noinc ((SV *)hv));
552
553 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
554 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
555 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
556 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
557 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
558 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
559 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
560 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
561 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
562 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
563 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
564 }
565
566 PUSHs (rv);
567 }
568
569 break;
570
351 case EIO_GROUP: 571 case EIO_GROUP:
352 req->int1 = 2; /* mark group as finished */ 572 req->int1 = 2; /* mark group as finished */
353 573
354 if (req->sv1) 574 if (req->sv1)
355 { 575 {
… …
365 case EIO_NOP: 585 case EIO_NOP:
366 case EIO_BUSY: 586 case EIO_BUSY:
367 break; 587 break;
368 588
369 case EIO_READLINK: 589 case EIO_READLINK:
590 case EIO_REALPATH:
370 if (req->result > 0) 591 if (req->result > 0)
371 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result))); 592 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
372 break; 593 break;
373 594
374 case EIO_STAT: 595 case EIO_STAT:
375 case EIO_LSTAT: 596 case EIO_LSTAT:
376 case EIO_FSTAT: 597 case EIO_FSTAT:
377 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 598 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
378 PL_laststatval = req->result; 599 PL_laststatval = req->result;
379 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 600 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
380 PUSHs (sv_2mortal (newSViv (req->result))); 601 PUSHs (sv_result);
381 break; 602 break;
382 603
383 case EIO_READ: 604 case EIO_READ:
384 { 605 {
385 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 606 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
386 *SvEND (req->sv2) = 0; 607 *SvEND (req->sv2) = 0;
387 SvPOK_only (req->sv2); 608 SvPOK_only (req->sv2);
388 SvSETMAGIC (req->sv2); 609 SvSETMAGIC (req->sv2);
389 PUSHs (sv_2mortal (newSViv (req->result))); 610 PUSHs (sv_result);
390 } 611 }
391 break; 612 break;
392 613
393 case EIO_DUP2: 614 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
394 if (req->result > 0) 615 if (req->result > 0)
395 req->result = 0; 616 SvIV_set (sv_result, 0);
396 /* FALLTHROUGH */ 617 /* FALLTHROUGH */
397 618
398 default: 619 default:
399 PUSHs (sv_2mortal (newSViv (req->result))); 620 PUSHs (sv_result);
400 break; 621 break;
401 } 622 }
402 623
403 errno = req->errorno; 624 errno = req->errorno;
404 625
405 PUTBACK; 626 PUTBACK;
406 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 627 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
407 SPAGAIN; 628 SPAGAIN;
629
630 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
631 SvREFCNT_dec (sv_result);
632 else
633 sv_result_cache = sv_result;
408 634
409 FREETMPS; 635 FREETMPS;
410 LEAVE; 636 LEAVE;
411 637
412 PUTBACK; 638 PUTBACK;
… …
441 grp->sv2 = 0; 667 grp->sv2 = 0;
442 668
443 eio_grp_cancel (grp); 669 eio_grp_cancel (grp);
444} 670}
445 671
446#ifdef USE_SOCKETS_AS_HANDLES
447# define TO_SOCKET(x) (win32_get_osfhandle (x))
448#else
449# define TO_SOCKET(x) (x)
450#endif
451
452static void
453create_respipe (void) 672static void create_respipe (void)
454{ 673{
455 int old_readfd = respipe [0];
456
457 if (respipe [1] >= 0)
458 respipe_close (TO_SOCKET (respipe [1]));
459
460#ifdef _WIN32
461 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
462#else
463 if (pipe (respipe)) 674 if (s_epipe_renew (&respipe))
464#endif
465 croak ("unable to initialize result pipe"); 675 croak ("IO::AIO: unable to initialize result pipe");
466
467 if (old_readfd >= 0)
468 {
469 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
470 croak ("unable to initialize result pipe(2)");
471
472 respipe_close (respipe [0]);
473 respipe [0] = old_readfd;
474 }
475
476#ifdef _WIN32
477 int arg = 1;
478 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
479 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
480#else
481 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
482 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
483#endif
484 croak ("unable to initialize result pipe(3)");
485
486 respipe_osf [0] = TO_SOCKET (respipe [0]);
487 respipe_osf [1] = TO_SOCKET (respipe [1]);
488} 676}
489 677
490static void poll_wait (void) 678static void poll_wait (void)
491{ 679{
492 fd_set rfd;
493
494 while (eio_nreqs ()) 680 while (eio_nreqs ())
495 { 681 {
496 int size; 682 int size;
497 683
498 X_LOCK (reslock); 684 X_LOCK (reslock);
… …
502 if (size) 688 if (size)
503 return; 689 return;
504 690
505 etp_maybe_start_thread (); 691 etp_maybe_start_thread ();
506 692
507 FD_ZERO (&rfd); 693 s_epipe_wait (&respipe);
508 FD_SET (respipe [0], &rfd);
509
510 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
511 } 694 }
512} 695}
513 696
514static int poll_cb (void) 697static int poll_cb (void)
515{ 698{
… …
530static void atfork_child (void) 713static void atfork_child (void)
531{ 714{
532 create_respipe (); 715 create_respipe ();
533} 716}
534 717
535static SV * 718/*****************************************************************************/
719
720#if !_POSIX_MAPPED_FILES
721# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
722# define munmap(addr,length) (errno = ENOSYS, -1)
723#endif
724
725#if !_POSIX_MEMORY_PROTECTION
726# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
727# define PROT_NONE 0
728# define PROT_WRITE 0
729# define MAP_PRIVATE 0
730# define MAP_SHARED 0
731# define MAP_FIXED 0
732#endif
733
734#define MMAP_MAGIC PERL_MAGIC_ext
735
736static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
737{
738 int old_errno = errno;
739 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
740 errno = old_errno;
741
742 mg->mg_obj = 0; /* just in case */
743
744 SvREADONLY_off (sv);
745
746 if (SvPVX (sv) != mg->mg_ptr)
747 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
748
749 SvCUR_set (sv, 0);
750 SvPVX (sv) = 0;
751 SvOK_off (sv);
752
753 return 0;
754}
755
756static MGVTBL mmap_vtbl = {
757 0, 0, 0, 0, mmap_free
758};
759
760/*****************************************************************************/
761
536get_cb (SV *cb_sv) 762static SV * get_cb (SV *cb_sv)
537{ 763{
538 SvGETMAGIC (cb_sv); 764 SvGETMAGIC (cb_sv);
539 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0; 765 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
540} 766}
541 767
… …
558 PUTBACK; \ 784 PUTBACK; \
559 req_submit (req); \ 785 req_submit (req); \
560 SPAGAIN; \ 786 SPAGAIN; \
561 \ 787 \
562 if (GIMME_V != G_VOID) \ 788 if (GIMME_V != G_VOID) \
563 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 789 XPUSHs (req_sv (req, aio_req_stash));
564 790
565MODULE = IO::AIO PACKAGE = IO::AIO 791MODULE = IO::AIO PACKAGE = IO::AIO
566 792
567PROTOTYPES: ENABLE 793PROTOTYPES: ENABLE
568 794
… …
570{ 796{
571 static const struct { 797 static const struct {
572 const char *name; 798 const char *name;
573 IV iv; 799 IV iv;
574 } *civ, const_iv[] = { 800 } *civ, const_iv[] = {
575# define const_iv(name, value) { # name, (IV) value }, 801# define const_niv(name, value) { # name, (IV) value },
802# define const_iv(name) { # name, (IV) name },
576# define const_eio(name) { # name, (IV) EIO_ ## name }, 803# define const_eio(name) { # name, (IV) EIO_ ## name },
577 const_iv (EXDEV , EXDEV) 804 const_iv (EXDEV)
578 const_iv (ENOSYS , ENOSYS) 805 const_iv (ENOSYS)
579 const_iv (O_RDONLY, O_RDONLY) 806 const_iv (O_RDONLY)
580 const_iv (O_WRONLY, O_WRONLY) 807 const_iv (O_WRONLY)
808 const_iv (O_RDWR)
581 const_iv (O_CREAT , O_CREAT) 809 const_iv (O_CREAT)
582 const_iv (O_TRUNC , O_TRUNC) 810 const_iv (O_TRUNC)
583#ifndef _WIN32 811 const_iv (O_EXCL)
812 const_iv (O_APPEND)
813
814 const_iv (O_ASYNC)
815 const_iv (O_DIRECT)
816 const_iv (O_NOATIME)
817
818 const_iv (O_CLOEXEC)
819 const_iv (O_NOCTTY)
820 const_iv (O_NOFOLLOW)
821 const_iv (O_NONBLOCK)
822 const_iv (O_EXEC)
823 const_iv (O_SEARCH)
824 const_iv (O_DIRECTORY)
825 const_iv (O_DSYNC)
826 const_iv (O_RSYNC)
827 const_iv (O_SYNC)
828 const_iv (O_TTY_INIT)
829
584 const_iv (S_IFIFO , S_IFIFO) 830 const_iv (S_IFIFO)
585#endif 831 const_iv (S_IFCHR)
832 const_iv (S_IFBLK)
833 const_iv (S_IFLNK)
834 const_iv (S_IFREG)
835 const_iv (S_IFDIR)
836 const_iv (S_IFWHT)
837 const_iv (S_IFSOCK)
838 const_iv (S_IFMT)
839
586 const_iv (FADV_NORMAL , POSIX_FADV_NORMAL) 840 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
587 const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL) 841 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
588 const_iv (FADV_RANDOM , POSIX_FADV_RANDOM) 842 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
589 const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE) 843 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
590 const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED) 844 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
591 const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED) 845 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
846
847 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
848 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
849 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
850 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
851 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
852
853 const_iv (ST_RDONLY)
854 const_iv (ST_NOSUID)
855 const_iv (ST_NODEV)
856 const_iv (ST_NOEXEC)
857 const_iv (ST_SYNCHRONOUS)
858 const_iv (ST_MANDLOCK)
859 const_iv (ST_WRITE)
860 const_iv (ST_APPEND)
861 const_iv (ST_IMMUTABLE)
862 const_iv (ST_NOATIME)
863 const_iv (ST_NODIRATIME)
864 const_iv (ST_RELATIME)
865
866 const_iv (PROT_NONE)
867 const_iv (PROT_EXEC)
868 const_iv (PROT_READ)
869 const_iv (PROT_WRITE)
870
871 /*const_iv (MAP_FIXED)*/
872 const_iv (MAP_PRIVATE)
873 const_iv (MAP_SHARED)
874 const_iv (MAP_ANONYMOUS)
875
876 /* linuxish */
877 const_iv (MAP_HUGETLB)
878 const_iv (MAP_LOCKED)
879 const_iv (MAP_NORESERVE)
880 const_iv (MAP_POPULATE)
881 const_iv (MAP_NONBLOCK)
882
883 const_eio (MCL_FUTURE)
884 const_eio (MCL_CURRENT)
885
886 const_eio (MS_ASYNC)
887 const_eio (MS_INVALIDATE)
888 const_eio (MS_SYNC)
889
890 const_eio (MT_MODIFY)
592 891
593 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE) 892 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
594 const_eio (SYNC_FILE_RANGE_WRITE) 893 const_eio (SYNC_FILE_RANGE_WRITE)
595 const_eio (SYNC_FILE_RANGE_WAIT_AFTER) 894 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
596 895
… …
608 const_eio (DT_LNK) 907 const_eio (DT_LNK)
609 const_eio (DT_SOCK) 908 const_eio (DT_SOCK)
610 const_eio (DT_WHT) 909 const_eio (DT_WHT)
611 }; 910 };
612 911
613 stash = gv_stashpv ("IO::AIO", 1); 912 aio_stash = gv_stashpv ("IO::AIO" , 1);
913 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
914 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
614 915
615 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) 916 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
616 newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv)); 917 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
918
919 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
617 920
618 create_respipe (); 921 create_respipe ();
619 922
620 if (eio_init (want_poll, done_poll) < 0) 923 if (eio_init (want_poll, done_poll) < 0)
621 croak ("IO::AIO: unable to initialise eio library"); 924 croak ("IO::AIO: unable to initialise eio library");
… …
623 /* atfork child called in fifo order, so before eio's handler */ 926 /* atfork child called in fifo order, so before eio's handler */
624 X_THREAD_ATFORK (0, 0, atfork_child); 927 X_THREAD_ATFORK (0, 0, atfork_child);
625} 928}
626 929
627void 930void
628max_poll_reqs (int nreqs) 931max_poll_reqs (unsigned int nreqs)
629 PROTOTYPE: $ 932 PROTOTYPE: $
630 CODE: 933 CODE:
631 eio_set_max_poll_reqs (nreqs); 934 eio_set_max_poll_reqs (nreqs);
632 935
633void 936void
… …
635 PROTOTYPE: $ 938 PROTOTYPE: $
636 CODE: 939 CODE:
637 eio_set_max_poll_time (nseconds); 940 eio_set_max_poll_time (nseconds);
638 941
639void 942void
640min_parallel (int nthreads) 943min_parallel (unsigned int nthreads)
641 PROTOTYPE: $ 944 PROTOTYPE: $
642 CODE: 945 CODE:
643 eio_set_min_parallel (nthreads); 946 eio_set_min_parallel (nthreads);
644 947
645void 948void
646max_parallel (int nthreads) 949max_parallel (unsigned int nthreads)
647 PROTOTYPE: $ 950 PROTOTYPE: $
648 CODE: 951 CODE:
649 eio_set_max_parallel (nthreads); 952 eio_set_max_parallel (nthreads);
650 953
651void 954void
652max_idle (int nthreads) 955max_idle (unsigned int nthreads)
653 PROTOTYPE: $ 956 PROTOTYPE: $
654 CODE: 957 CODE:
655 eio_set_max_idle (nthreads); 958 eio_set_max_idle (nthreads);
656 959
657void 960void
961idle_timeout (unsigned int seconds)
962 PROTOTYPE: $
963 CODE:
964 eio_set_idle_timeout (seconds);
965
966void
658max_outstanding (int maxreqs) 967max_outstanding (unsigned int maxreqs)
659 PROTOTYPE: $ 968 PROTOTYPE: $
660 CODE: 969 CODE:
661 max_outstanding = maxreqs; 970 max_outstanding = maxreqs;
662 971
663void 972void
664aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 973aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
665 PROTOTYPE: $$$;$
666 PPCODE: 974 PPCODE:
667{ 975{
668 dREQ; 976 dREQ;
669 977
670 req->type = EIO_OPEN; 978 req->type = EIO_OPEN;
… …
676 REQ_SEND; 984 REQ_SEND;
677} 985}
678 986
679void 987void
680aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 988aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
681 PROTOTYPE: $;$
682 ALIAS: 989 ALIAS:
683 aio_fsync = EIO_FSYNC 990 aio_fsync = EIO_FSYNC
684 aio_fdatasync = EIO_FDATASYNC 991 aio_fdatasync = EIO_FDATASYNC
685 PPCODE: 992 PPCODE:
686{ 993{
… …
694 REQ_SEND (req); 1001 REQ_SEND (req);
695} 1002}
696 1003
697void 1004void
698aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) 1005aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
699 PROTOTYPE: $$$$;$
700 PPCODE: 1006 PPCODE:
701{ 1007{
702 int fd = s_fileno_croak (fh, 0); 1008 int fd = s_fileno_croak (fh, 0);
703 dREQ; 1009 dREQ;
704 1010
… …
712 REQ_SEND (req); 1018 REQ_SEND (req);
713} 1019}
714 1020
715void 1021void
716aio_close (SV *fh, SV *callback=&PL_sv_undef) 1022aio_close (SV *fh, SV *callback=&PL_sv_undef)
717 PROTOTYPE: $;$
718 PPCODE: 1023 PPCODE:
719{ 1024{
720 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 1025 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
721 int fd = s_fileno_croak (fh, 0); 1026 int fd = s_fileno_croak (fh, 0);
722 dREQ; 1027 dREQ;
… …
744void 1049void
745aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 1050aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
746 ALIAS: 1051 ALIAS:
747 aio_read = EIO_READ 1052 aio_read = EIO_READ
748 aio_write = EIO_WRITE 1053 aio_write = EIO_WRITE
749 PROTOTYPE: $$$$$;$
750 PPCODE: 1054 PPCODE:
751{ 1055{
752 STRLEN svlen; 1056 STRLEN svlen;
753 int fd = s_fileno_croak (fh, ix == EIO_WRITE); 1057 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
754 char *svptr = SvPVbyte (data, svlen); 1058 char *svptr = SvPVbyte (data, svlen);
… …
795 } 1099 }
796} 1100}
797 1101
798void 1102void
799aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1103aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
800 PROTOTYPE: $$;$ 1104 ALIAS:
1105 aio_readlink = EIO_READLINK
1106 aio_realpath = EIO_REALPATH
801 PPCODE: 1107 PPCODE:
802{ 1108{
803 SV *data; 1109 SV *data;
804 dREQ; 1110 dREQ;
805 1111
806 req->type = EIO_READLINK; 1112 req->type = ix;
807 req->sv1 = newSVsv (path); 1113 req->sv1 = newSVsv (path);
808 req->ptr1 = SvPVbyte_nolen (req->sv1); 1114 req->ptr1 = SvPVbyte_nolen (req->sv1);
809 1115
810 REQ_SEND; 1116 REQ_SEND;
811} 1117}
812 1118
813void 1119void
814aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef) 1120aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
815 PROTOTYPE: $$$$;$
816 PPCODE: 1121 PPCODE:
817{ 1122{
818 int ifd = s_fileno_croak (in_fh , 0); 1123 int ifd = s_fileno_croak (in_fh , 0);
819 int ofd = s_fileno_croak (out_fh, 1); 1124 int ofd = s_fileno_croak (out_fh, 1);
820 dREQ; 1125 dREQ;
… …
830 REQ_SEND; 1135 REQ_SEND;
831} 1136}
832 1137
833void 1138void
834aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) 1139aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
835 PROTOTYPE: $$$;$
836 PPCODE: 1140 PPCODE:
837{ 1141{
838 int fd = s_fileno_croak (fh, 0); 1142 int fd = s_fileno_croak (fh, 0);
839 dREQ; 1143 dREQ;
840 1144
… …
848} 1152}
849 1153
850void 1154void
851aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1155aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
852 ALIAS: 1156 ALIAS:
853 aio_stat = EIO_STAT 1157 aio_stat = EIO_STAT
854 aio_lstat = EIO_LSTAT 1158 aio_lstat = EIO_LSTAT
1159 aio_statvfs = EIO_STATVFS
855 PPCODE: 1160 PPCODE:
856{ 1161{
857 dREQ; 1162 dREQ;
858 1163
859 req->sv1 = newSVsv (fh_or_path); 1164 req->sv1 = newSVsv (fh_or_path);
… …
863 req->type = ix; 1168 req->type = ix;
864 req->ptr1 = SvPVbyte_nolen (req->sv1); 1169 req->ptr1 = SvPVbyte_nolen (req->sv1);
865 } 1170 }
866 else 1171 else
867 { 1172 {
868 req->type = EIO_FSTAT; 1173 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
869 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1174 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
870 } 1175 }
871 1176
872 REQ_SEND; 1177 REQ_SEND;
873} 1178}
1179
1180UV
1181major (UV dev)
1182 ALIAS:
1183 minor = 1
1184 CODE:
1185 RETVAL = ix ? major (dev) : minor (dev);
1186 OUTPUT:
1187 RETVAL
1188
1189UV
1190makedev (UV maj, UV min)
1191 CODE:
1192 RETVAL = makedev (maj, min);
1193 OUTPUT:
1194 RETVAL
874 1195
875void 1196void
876aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1197aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
877 PPCODE: 1198 PPCODE:
878{ 1199{
… …
1036 1357
1037 REQ_SEND; 1358 REQ_SEND;
1038} 1359}
1039 1360
1040void 1361void
1362aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1363 ALIAS:
1364 aio_mtouch = EIO_MTOUCH
1365 aio_msync = EIO_MSYNC
1366 PPCODE:
1367{
1368 STRLEN svlen;
1369 char *svptr = SvPVbyte (data, svlen);
1370 UV len = SvUV (length);
1371
1372 if (offset < 0)
1373 offset += svlen;
1374
1375 if (offset < 0 || offset > svlen)
1376 croak ("offset outside of scalar");
1377
1378 if (!SvOK (length) || len + offset > svlen)
1379 len = svlen - offset;
1380
1381 {
1382 dREQ;
1383
1384 req->type = ix;
1385 req->sv2 = SvREFCNT_inc (data);
1386 req->ptr2 = (char *)svptr + offset;
1387 req->size = len;
1388 req->int1 = flags;
1389
1390 REQ_SEND;
1391 }
1392}
1393
1394void
1395aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1396 PPCODE:
1397{
1398 STRLEN svlen;
1399 char *svptr = SvPVbyte (data, svlen);
1400 UV len = SvUV (length);
1401
1402 if (offset < 0)
1403 offset += svlen;
1404
1405 if (offset < 0 || offset > svlen)
1406 croak ("offset outside of scalar");
1407
1408 if (!SvOK (length) || len + offset > svlen)
1409 len = svlen - offset;
1410
1411 {
1412 dREQ;
1413
1414 req->type = EIO_MLOCK;
1415 req->sv2 = SvREFCNT_inc (data);
1416 req->ptr2 = (char *)svptr + offset;
1417 req->size = len;
1418
1419 REQ_SEND;
1420 }
1421}
1422
1423void
1424aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1425 PPCODE:
1426{
1427 dREQ;
1428
1429 req->type = EIO_MLOCKALL;
1430 req->int1 = flags;
1431
1432 REQ_SEND;
1433}
1434
1435void
1041aio_busy (double delay, SV *callback=&PL_sv_undef) 1436aio_busy (double delay, SV *callback=&PL_sv_undef)
1042 PPCODE: 1437 PPCODE:
1043{ 1438{
1044 dREQ; 1439 dREQ;
1045 1440
… …
1049 REQ_SEND; 1444 REQ_SEND;
1050} 1445}
1051 1446
1052void 1447void
1053aio_group (SV *callback=&PL_sv_undef) 1448aio_group (SV *callback=&PL_sv_undef)
1054 PROTOTYPE: ;$
1055 PPCODE: 1449 PPCODE:
1056{ 1450{
1057 dREQ; 1451 dREQ;
1058 1452
1059 req->type = EIO_GROUP; 1453 req->type = EIO_GROUP;
1060 1454
1061 req_submit (req); 1455 req_submit (req);
1062 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1456 XPUSHs (req_sv (req, aio_grp_stash));
1063} 1457}
1064 1458
1065void 1459void
1066aio_nop (SV *callback=&PL_sv_undef) 1460aio_nop (SV *callback=&PL_sv_undef)
1067 ALIAS: 1461 ALIAS:
… …
1076 REQ_SEND; 1470 REQ_SEND;
1077} 1471}
1078 1472
1079int 1473int
1080aioreq_pri (int pri = 0) 1474aioreq_pri (int pri = 0)
1081 PROTOTYPE: ;$
1082 CODE: 1475 CODE:
1083 RETVAL = next_pri; 1476 RETVAL = next_pri;
1084 if (items > 0) 1477 if (items > 0)
1085 { 1478 {
1086 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1479 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
… …
1098 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1491 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1099 next_pri = nice; 1492 next_pri = nice;
1100 1493
1101void 1494void
1102flush () 1495flush ()
1103 PROTOTYPE:
1104 CODE: 1496 CODE:
1105 while (eio_nreqs ()) 1497 while (eio_nreqs ())
1106 { 1498 {
1107 poll_wait (); 1499 poll_wait ();
1108 poll_cb (); 1500 poll_cb ();
1109 } 1501 }
1110 1502
1111int 1503int
1112poll() 1504poll ()
1113 PROTOTYPE:
1114 CODE: 1505 CODE:
1115 poll_wait (); 1506 poll_wait ();
1116 RETVAL = poll_cb (); 1507 RETVAL = poll_cb ();
1117 OUTPUT: 1508 OUTPUT:
1118 RETVAL 1509 RETVAL
1119 1510
1120int 1511int
1121poll_fileno() 1512poll_fileno ()
1122 PROTOTYPE:
1123 CODE: 1513 CODE:
1124 RETVAL = respipe [0]; 1514 RETVAL = s_epipe_fd (&respipe);
1125 OUTPUT: 1515 OUTPUT:
1126 RETVAL 1516 RETVAL
1127 1517
1128int 1518int
1129poll_cb(...) 1519poll_cb (...)
1130 PROTOTYPE: 1520 PROTOTYPE:
1131 CODE: 1521 CODE:
1132 RETVAL = poll_cb (); 1522 RETVAL = poll_cb ();
1133 OUTPUT: 1523 OUTPUT:
1134 RETVAL 1524 RETVAL
1135 1525
1136void 1526void
1137poll_wait() 1527poll_wait ()
1138 PROTOTYPE:
1139 CODE: 1528 CODE:
1140 poll_wait (); 1529 poll_wait ();
1141 1530
1142int 1531int
1143nreqs() 1532nreqs ()
1144 PROTOTYPE:
1145 CODE: 1533 CODE:
1146 RETVAL = eio_nreqs (); 1534 RETVAL = eio_nreqs ();
1147 OUTPUT: 1535 OUTPUT:
1148 RETVAL 1536 RETVAL
1149 1537
1150int 1538int
1151nready() 1539nready ()
1152 PROTOTYPE:
1153 CODE: 1540 CODE:
1154 RETVAL = eio_nready (); 1541 RETVAL = eio_nready ();
1155 OUTPUT: 1542 OUTPUT:
1156 RETVAL 1543 RETVAL
1157 1544
1158int 1545int
1159npending() 1546npending ()
1160 PROTOTYPE:
1161 CODE: 1547 CODE:
1162 RETVAL = eio_npending (); 1548 RETVAL = eio_npending ();
1163 OUTPUT: 1549 OUTPUT:
1164 RETVAL 1550 RETVAL
1165 1551
1166int 1552int
1167nthreads() 1553nthreads ()
1168 PROTOTYPE:
1169 CODE: 1554 CODE:
1170 RETVAL = eio_nthreads (); 1555 RETVAL = eio_nthreads ();
1171 OUTPUT: 1556 OUTPUT:
1172 RETVAL 1557 RETVAL
1173 1558
1174int 1559int
1175fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) 1560fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1176 PROTOTYPE: $$$$
1177 CODE: 1561 CODE:
1178#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1179 RETVAL = posix_fadvise (fh, offset, length, advice); 1562 RETVAL = posix_fadvise (fh, offset, length, advice);
1180#else
1181 RETVAL = errno = ENOSYS;
1182#endif
1183 OUTPUT: 1563 OUTPUT:
1184 RETVAL 1564 RETVAL
1185 1565
1186ssize_t 1566ssize_t
1187sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) 1567sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1188 PROTOTYPE: $$$$
1189 CODE: 1568 CODE:
1190 eio_sendfile_sync (ofh, ifh, offset, count); 1569 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1570 OUTPUT:
1571 RETVAL
1572
1573void
1574mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1575 PPCODE:
1576 sv_unmagic (scalar, MMAP_MAGIC);
1577{
1578 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1579 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1580 if (addr == (void *)-1)
1581 XSRETURN_NO;
1582
1583 sv_force_normal (scalar);
1584
1585 /* we store the length in mg_obj, as namlen is I32 :/ */
1586 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1587 ->mg_obj = (SV *)length;
1588
1589 SvUPGRADE (scalar, SVt_PV); /* nop... */
1590
1591 if (!(prot & PROT_WRITE))
1592 SvREADONLY_on (scalar);
1593
1594 if (SvLEN (scalar))
1595 Safefree (SvPVX (scalar));
1596
1597 SvPVX (scalar) = (char *)addr;
1598 SvCUR_set (scalar, length);
1599 SvLEN_set (scalar, 0);
1600 SvPOK_only (scalar);
1601
1602 XSRETURN_YES;
1603}
1604
1605void
1606munmap (SV *scalar)
1607 CODE:
1608 sv_unmagic (scalar, MMAP_MAGIC);
1609
1610int
1611madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1612 ALIAS:
1613 mprotect = 1
1614 CODE:
1615{
1616 STRLEN svlen;
1617 void *addr = SvPVbyte (scalar, svlen);
1618 size_t len = SvUV (length);
1619
1620 if (offset < 0)
1621 offset += svlen;
1622
1623 if (offset < 0 || offset > svlen)
1624 croak ("offset outside of scalar");
1625
1626 if (!SvOK (length) || len + offset > svlen)
1627 len = svlen - offset;
1628
1629 addr = (void *)(((intptr_t)addr) + offset);
1630 eio_page_align (&addr, &len);
1631
1632 switch (ix)
1633 {
1634 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1635 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1636 }
1637}
1638 OUTPUT:
1639 RETVAL
1640
1641int
1642munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1643 CODE:
1644{
1645 STRLEN svlen;
1646 void *addr = SvPVbyte (scalar, svlen);
1647 size_t len = SvUV (length);
1648
1649 if (offset < 0)
1650 offset += svlen;
1651
1652 if (offset < 0 || offset > svlen)
1653 croak ("offset outside of scalar");
1654
1655 if (!SvOK (length) || len + offset > svlen)
1656 len = svlen - offset;
1657
1658 addr = (void *)(((intptr_t)addr) + offset);
1659 eio_page_align (&addr, &len);
1660#if _POSIX_MEMLOCK_RANGE
1661 RETVAL = munlock (addr, len);
1662#else
1663 RETVAL = ((errno = ENOSYS), -1);
1664#endif
1665}
1666 OUTPUT:
1667 RETVAL
1668
1669int
1670munlockall ()
1671 CODE:
1672#if _POSIX_MEMLOCK
1673 munlockall ();
1674#else
1675 RETVAL = -1;
1676 errno = ENOSYS;
1677#endif
1678 OUTPUT:
1679 RETVAL
1191 1680
1192void _on_next_submit (SV *cb) 1681void _on_next_submit (SV *cb)
1193 CODE: 1682 CODE:
1194 SvREFCNT_dec (on_next_submit); 1683 SvREFCNT_dec (on_next_submit);
1195 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; 1684 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;

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