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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.143 by root, Sat Jun 6 19:44:17 2009 UTC vs.
Revision 1.170 by root, Wed Aug 4 16:09:36 2010 UTC

… …
3#include <errno.h> 3#include <errno.h>
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8
9#include "schmorp.h"
8 10
9#include <stddef.h> 11#include <stddef.h>
10#include <stdlib.h> 12#include <stdlib.h>
11#include <errno.h> 13#include <errno.h>
12#include <sys/types.h> 14#include <sys/types.h>
13#include <sys/stat.h> 15#include <sys/stat.h>
16#include <sys/statvfs.h>
14#include <limits.h> 17#include <limits.h>
15#include <fcntl.h> 18#include <fcntl.h>
16#include <sched.h> 19#include <sched.h>
20
21#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES
22# include <sys/mman.h>
23#endif
17 24
18/* perl namespace pollution */ 25/* perl namespace pollution */
19#undef VERSION 26#undef VERSION
20 27
21#ifdef _WIN32 28#ifdef _WIN32
… …
75 82
76#define EIO_STRUCT_STAT Stat_t 83#define EIO_STRUCT_STAT Stat_t
77 84
78/* use NV for 32 bit perls as it allows larger offsets */ 85/* use NV for 32 bit perls as it allows larger offsets */
79#if IVSIZE >= 8 86#if IVSIZE >= 8
87# define VAL64 IV
80# define SvVAL64 SvIV 88# define SvVAL64 SvIV
89# define newSVval64 newSViv
81#else 90#else
91# define VAL64 NV
82# define SvVAL64 SvNV 92# define SvVAL64 SvNV
93# define newSVval64 newSVnv
83#endif 94#endif
84 95
85/*****************************************************************************/ 96/*****************************************************************************/
86 97
87#if __GNUC__ >= 3 98#if __GNUC__ >= 3
… …
93#define expect_false(expr) expect ((expr) != 0, 0) 104#define expect_false(expr) expect ((expr) != 0, 0)
94#define expect_true(expr) expect ((expr) != 0, 1) 105#define expect_true(expr) expect ((expr) != 0, 1)
95 106
96/*****************************************************************************/ 107/*****************************************************************************/
97 108
98static HV *stash;
99typedef SV SV8; /* byte-sv, used for argument-checking */ 109typedef SV SV8; /* byte-sv, used for argument-checking */
110typedef int aio_rfd; /* read file desriptor */
111typedef int aio_wfd; /* write file descriptor */
100 112
101#define AIO_REQ_KLASS "IO::AIO::REQ" 113static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
102#define AIO_GRP_KLASS "IO::AIO::GRP"
103 114
104#define EIO_REQ_MEMBERS \ 115#define EIO_REQ_MEMBERS \
105 SV *callback; \ 116 SV *callback; \
106 SV *sv1, *sv2; \ 117 SV *sv1, *sv2; \
107 STRLEN stroffset; \ 118 STRLEN stroffset; \
… …
109 120
110#define EIO_NO_WRAPPERS 1 121#define EIO_NO_WRAPPERS 1
111 122
112#include "libeio/eio.h" 123#include "libeio/eio.h"
113 124
125#ifndef POSIX_FADV_NORMAL
126# define POSIX_FADV_NORMAL 0
127# define NO_FADVISE 1
128#endif
129#ifndef POSIX_FADV_SEQUENTIAL
130# define POSIX_FADV_SEQUENTIAL 0
131#endif
132#ifndef POSIX_FADV_RANDOM
133# define POSIX_FADV_RANDOM 0
134#endif
135#ifndef POSIX_FADV_NOREUSE
136# define POSIX_FADV_NOREUSE 0
137#endif
138#ifndef POSIX_FADV_WILLNEED
139# define POSIX_FADV_WILLNEED 0
140#endif
141#ifndef POSIX_FADV_DONTNEED
142# define POSIX_FADV_DONTNEED 0
143#endif
144
145#if _XOPEN_SOURCE < 600 || NO_FADVISE
146# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
147#endif
148
149#ifndef POSIX_MADV_NORMAL
150# define POSIX_MADV_NORMAL 0
151# define NO_MADVISE 1
152#endif
153#ifndef POSIX_MADV_SEQUENTIAL
154# define POSIX_MADV_SEQUENTIAL 0
155#endif
156#ifndef POSIX_MADV_RANDOM
157# define POSIX_MADV_RANDOM 0
158#endif
159#ifndef POSIX_MADV_WILLNEED
160# define POSIX_MADV_WILLNEED 0
161#endif
162#ifndef POSIX_MADV_DONTNEED
163# define POSIX_MADV_DONTNEED 0
164#endif
165
166#if _XOPEN_SOURCE < 600 || NO_MADVISE
167# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
168#endif
169
170#ifndef ST_NODEV
171# define ST_NODEV 0
172#endif
173#ifndef ST_NOEXEC
174# define ST_NOEXEC 0
175#endif
176#ifndef ST_SYNCHRONOUS
177# define ST_SYNCHRONOUS 0
178#endif
179#ifndef ST_MANDLOCK
180# define ST_MANDLOCK 0
181#endif
182#ifndef ST_WRITE
183# define ST_WRITE 0
184#endif
185#ifndef ST_APPEND
186# define ST_APPEND 0
187#endif
188#ifndef ST_IMMUTABLE
189# define ST_IMMUTABLE 0
190#endif
191#ifndef ST_NOATIME
192# define ST_NOATIME 0
193#endif
194#ifndef ST_NODIRATIME
195# define ST_NODIRATIME 0
196#endif
197#ifndef ST_RELATIME
198# define ST_RELATIME 0
199#endif
200
201#ifndef MCL_CURRENT
202# define MCL_CURRENT 0
203#endif
204#ifndef MCL_FUTURE
205# define MCL_FUTURE 0
206#endif
207
208#ifndef MAP_ANONYMOUS
209# ifdef MAP_ANON
210# define MAP_ANONYMOUS MAP_ANON
211# else
212# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
213# endif
214#endif
215#ifndef MAP_HUGETLB
216# define MAP_HUGETLB 0
217#endif
218#ifndef MAP_LOCKED
219# define MAP_LOCKED 0
220#endif
221#ifndef MAP_NORESERVE
222# define MAP_NORESERVE 0
223#endif
224#ifndef MAP_POPULATE
225# define MAP_POPULATE 0
226#endif
227#ifndef MAP_NONBLOCK
228# define MAP_NONBLOCK 0
229#endif
230
231#ifndef PAGESIZE
232# define PAGESIZE sysconf (_SC_PAGESIZE)
233#endif
234
114static int req_invoke (eio_req *req); 235static int req_invoke (eio_req *req);
115#define EIO_FINISH(req) req_invoke (req) 236#define EIO_FINISH(req) req_invoke (req)
116static void req_destroy (eio_req *grp); 237static void req_destroy (eio_req *grp);
117#define EIO_DESTROY(req) req_destroy (req) 238#define EIO_DESTROY(req) req_destroy (req)
118 239
… …
127 248
128static SV *on_next_submit; 249static SV *on_next_submit;
129static int next_pri = EIO_PRI_DEFAULT; 250static int next_pri = EIO_PRI_DEFAULT;
130static int max_outstanding; 251static int max_outstanding;
131 252
132static int respipe_osf [2], respipe [2] = { -1, -1 }; 253static s_epipe respipe;
133 254
134static void req_destroy (aio_req req); 255static void req_destroy (aio_req req);
135static void req_cancel (aio_req req); 256static void req_cancel (aio_req req);
136 257
137static void want_poll (void) 258static void want_poll (void)
138{ 259{
139 /* write a dummy byte to the pipe so fh becomes ready */ 260 /* write a dummy byte to the pipe so fh becomes ready */
140 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1); 261 s_epipe_signal (&respipe);
141} 262}
142 263
143static void done_poll (void) 264static void done_poll (void)
144{ 265{
145 /* read any signals sent by the worker threads */ 266 /* read any signals sent by the worker threads */
146 char buf [4]; 267 s_epipe_drain (&respipe);
147 while (respipe_read (respipe [0], buf, 4) == 4)
148 ;
149} 268}
150 269
151/* must be called at most once */ 270/* must be called at most once */
152static SV *req_sv (aio_req req, const char *klass) 271static SV *req_sv (aio_req req, HV *stash)
153{ 272{
154 if (!req->self) 273 if (!req->self)
155 { 274 {
156 req->self = (SV *)newHV (); 275 req->self = (SV *)newHV ();
157 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 276 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
158 } 277 }
159 278
160 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 279 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
161} 280}
162 281
163static aio_req SvAIO_REQ (SV *sv) 282static aio_req SvAIO_REQ (SV *sv)
164{ 283{
165 MAGIC *mg; 284 MAGIC *mg;
166 285
167 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 286 if (!SvROK (sv)
287 || (SvSTASH (SvRV (sv)) != aio_grp_stash
288 && SvSTASH (SvRV (sv)) != aio_req_stash
289 && !sv_derived_from (sv, "IO::AIO::REQ")))
168 croak ("object of class " AIO_REQ_KLASS " expected"); 290 croak ("object of class IO::AIO::REQ expected");
169 291
170 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 292 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
171 293
172 return mg ? (aio_req)mg->mg_ptr : 0; 294 return mg ? (aio_req)mg->mg_ptr : 0;
173} 295}
… …
179 dSP; 301 dSP;
180 302
181 ENTER; 303 ENTER;
182 SAVETMPS; 304 SAVETMPS;
183 PUSHMARK (SP); 305 PUSHMARK (SP);
184 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 306 XPUSHs (req_sv (grp, aio_grp_stash));
185 PUTBACK; 307 PUTBACK;
186 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 308 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
187 SPAGAIN; 309 SPAGAIN;
188 FREETMPS; 310 FREETMPS;
189 LEAVE; 311 LEAVE;
… …
207 } 329 }
208} 330}
209 331
210static int req_invoke (eio_req *req) 332static int req_invoke (eio_req *req)
211{ 333{
212 dSP;
213
214 if (req->flags & FLAG_SV2_RO_OFF) 334 if (req->flags & FLAG_SV2_RO_OFF)
215 SvREADONLY_off (req->sv2); 335 SvREADONLY_off (req->sv2);
216 336
217 if (!EIO_CANCELLED (req) && req->callback) 337 if (!EIO_CANCELLED (req) && req->callback)
218 { 338 {
339 dSP;
340 static SV *sv_result_cache; /* caches the result integer SV */
341 SV *sv_result;
342
219 ENTER; 343 ENTER;
220 SAVETMPS; 344 SAVETMPS;
221 PUSHMARK (SP); 345 PUSHMARK (SP);
222 EXTEND (SP, 1); 346 EXTEND (SP, 1);
347
348 /* do not recreate the result IV from scratch each time */
349 if (expect_true (sv_result_cache))
350 {
351 sv_result = sv_result_cache; sv_result_cache = 0;
352 SvIV_set (sv_result, req->result);
353 }
354 else
355 {
356 sv_result = newSViv (req->result);
357 SvREADONLY_on (sv_result);
358 }
223 359
224 switch (req->type) 360 switch (req->type)
225 { 361 {
226 case EIO_READDIR: 362 case EIO_READDIR:
227 { 363 {
228 SV *rv = &PL_sv_undef; 364 SV *rv = &PL_sv_undef;
229 365
230 if (req->result >= 0) 366 if (req->result >= 0)
231 { 367 {
232 int i; 368 int i;
233 char *buf = req->ptr2; 369 char *names = (char *)req->ptr2;
370 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
234 AV *av = newAV (); 371 AV *av = newAV ();
235 372
236 av_extend (av, req->result - 1); 373 av_extend (av, req->result - 1);
237 374
238 for (i = 0; i < req->result; ++i) 375 for (i = 0; i < req->result; ++i)
239 { 376 {
240 if (req->int1 & EIO_READDIR_DENTS) 377 if (req->int1 & EIO_READDIR_DENTS)
241 { 378 {
242 eio_dirent *ent = (eio_dirent *)buf;
243 SV *namesv = newSVpvn (ent->name, ent->namelen); 379 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
244 380
245 if (req->int1 & EIO_READDIR_CUSTOM2) 381 if (req->int1 & EIO_READDIR_CUSTOM2)
246 { 382 {
247 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */ 383 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
248 AV *avent = newAV (); 384 AV *avent = newAV ();
… …
262 av_store (av, i, newRV_noinc ((SV *)avent)); 398 av_store (av, i, newRV_noinc ((SV *)avent));
263 } 399 }
264 else 400 else
265 av_store (av, i, namesv); 401 av_store (av, i, namesv);
266 402
267 buf += sizeof (eio_dirent); 403 ++ent;
268 } 404 }
269 else 405 else
270 { 406 {
271 SV *name = newSVpv (buf, 0); 407 SV *name = newSVpv (names, 0);
272 av_store (av, i, name); 408 av_store (av, i, name);
273 buf += SvCUR (name) + 1; 409 names += SvCUR (name) + 1;
274 } 410 }
275 } 411 }
276 412
277 rv = sv_2mortal (newRV_noinc ((SV *)av)); 413 rv = sv_2mortal (newRV_noinc ((SV *)av));
278 } 414 }
… …
294 GV *gv = (GV *)sv_newmortal (); 430 GV *gv = (GV *)sv_newmortal ();
295 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 431 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
296 char sym [64]; 432 char sym [64];
297 int symlen; 433 int symlen;
298 434
299 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 435 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
300 gv_init (gv, stash, sym, symlen, 0); 436 gv_init (gv, aio_stash, sym, symlen, 0);
301 437
302 symlen = snprintf ( 438 symlen = snprintf (
303 sym, 439 sym,
304 sizeof (sym), 440 sizeof (sym),
305 "%s&=%d", 441 "%s&=%d",
306 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", 442 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
307 req->result 443 (int)req->result
308 ); 444 );
309 445
310 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 446 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
311 fh = (SV *)gv; 447 fh = (SV *)gv;
312 } 448 }
313 449
314 PUSHs (fh); 450 PUSHs (fh);
315 } 451 }
452 break;
453
454 case EIO_STATVFS:
455 case EIO_FSTATVFS:
456 {
457 SV *rv = &PL_sv_undef;
458
459 if (req->result >= 0)
460 {
461 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
462 HV *hv = newHV ();
463
464 rv = sv_2mortal (newRV_noinc ((SV *)hv));
465
466 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
467 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
468 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
469 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
470 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
471 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
472 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
473 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
474 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
475 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
476 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
477 }
478
479 PUSHs (rv);
480 }
481
316 break; 482 break;
317 483
318 case EIO_GROUP: 484 case EIO_GROUP:
319 req->int1 = 2; /* mark group as finished */ 485 req->int1 = 2; /* mark group as finished */
320 486
… …
342 case EIO_LSTAT: 508 case EIO_LSTAT:
343 case EIO_FSTAT: 509 case EIO_FSTAT:
344 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 510 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
345 PL_laststatval = req->result; 511 PL_laststatval = req->result;
346 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 512 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
347 PUSHs (sv_2mortal (newSViv (req->result))); 513 PUSHs (sv_result);
348 break; 514 break;
349 515
350 case EIO_READ: 516 case EIO_READ:
351 { 517 {
352 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 518 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
353 *SvEND (req->sv2) = 0; 519 *SvEND (req->sv2) = 0;
354 SvPOK_only (req->sv2); 520 SvPOK_only (req->sv2);
355 SvSETMAGIC (req->sv2); 521 SvSETMAGIC (req->sv2);
356 PUSHs (sv_2mortal (newSViv (req->result))); 522 PUSHs (sv_result);
357 } 523 }
358 break; 524 break;
359 525
360 case EIO_DUP2: 526 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
361 if (req->result > 0) 527 if (req->result > 0)
362 req->result = 0; 528 SvIV_set (sv_result, 0);
363 /* FALLTHROUGH */ 529 /* FALLTHROUGH */
364 530
365 default: 531 default:
366 PUSHs (sv_2mortal (newSViv (req->result))); 532 PUSHs (sv_result);
367 break; 533 break;
368 } 534 }
369 535
370 errno = req->errorno; 536 errno = req->errorno;
371 537
372 PUTBACK; 538 PUTBACK;
373 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 539 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
374 SPAGAIN; 540 SPAGAIN;
541
542 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
543 SvREFCNT_dec (sv_result);
544 else
545 sv_result_cache = sv_result;
375 546
376 FREETMPS; 547 FREETMPS;
377 LEAVE; 548 LEAVE;
378 549
379 PUTBACK; 550 PUTBACK;
… …
408 grp->sv2 = 0; 579 grp->sv2 = 0;
409 580
410 eio_grp_cancel (grp); 581 eio_grp_cancel (grp);
411} 582}
412 583
413#ifdef USE_SOCKETS_AS_HANDLES
414# define TO_SOCKET(x) (win32_get_osfhandle (x))
415#else
416# define TO_SOCKET(x) (x)
417#endif
418
419static void 584static void
420create_respipe (void) 585create_respipe (void)
421{ 586{
422 int old_readfd = respipe [0];
423
424 if (respipe [1] >= 0)
425 respipe_close (TO_SOCKET (respipe [1]));
426
427#ifdef _WIN32
428 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
429#else
430 if (pipe (respipe)) 587 if (s_epipe_renew (&respipe))
431#endif
432 croak ("unable to initialize result pipe"); 588 croak ("IO::AIO: unable to initialize result pipe");
433
434 if (old_readfd >= 0)
435 {
436 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
437 croak ("unable to initialize result pipe(2)");
438
439 respipe_close (respipe [0]);
440 respipe [0] = old_readfd;
441 }
442
443#ifdef _WIN32
444 int arg = 1;
445 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
446 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
447#else
448 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
449 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
450#endif
451 croak ("unable to initialize result pipe(3)");
452
453 respipe_osf [0] = TO_SOCKET (respipe [0]);
454 respipe_osf [1] = TO_SOCKET (respipe [1]);
455} 589}
456 590
457static void poll_wait (void) 591static void poll_wait (void)
458{ 592{
459 fd_set rfd;
460
461 while (eio_nreqs ()) 593 while (eio_nreqs ())
462 { 594 {
463 int size; 595 int size;
464 596
465 X_LOCK (reslock); 597 X_LOCK (reslock);
… …
469 if (size) 601 if (size)
470 return; 602 return;
471 603
472 etp_maybe_start_thread (); 604 etp_maybe_start_thread ();
473 605
474 FD_ZERO (&rfd); 606 s_epipe_wait (&respipe);
475 FD_SET (respipe [0], &rfd);
476
477 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
478 } 607 }
479} 608}
480 609
481static int poll_cb (void) 610static int poll_cb (void)
482{ 611{
… …
497static void atfork_child (void) 626static void atfork_child (void)
498{ 627{
499 create_respipe (); 628 create_respipe ();
500} 629}
501 630
631/*****************************************************************************/
632
633#if !_POSIX_MAPPED_FILES
634# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
635# define munmap(addr,length) (errno = ENOSYS, -1)
636#endif
637
638#define MMAP_MAGIC PERL_MAGIC_ext
639
640static int
641mmap_free (pTHX_ SV *sv, MAGIC *mg)
642{
643 int old_errno = errno;
644 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
645 errno = old_errno;
646
647 mg->mg_obj = 0; /* just in case */
648
649 SvREADONLY_off (sv);
650
651 if (SvPVX (sv) != mg->mg_ptr)
652 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
653
654 SvCUR_set (sv, 0);
655 SvPVX (sv) = 0;
656 SvOK_off (sv);
657
658 return 0;
659}
660
661static MGVTBL mmap_vtbl = {
662 0, 0, 0, 0, mmap_free
663};
664
665/*****************************************************************************/
666
502static SV * 667static SV *
503get_cb (SV *cb_sv) 668get_cb (SV *cb_sv)
504{ 669{
505 HV *st; 670 SvGETMAGIC (cb_sv);
506 GV *gvp; 671 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
507 CV *cv;
508
509 if (!SvOK (cb_sv))
510 return 0;
511
512 cv = sv_2cv (cb_sv, &st, &gvp, 0);
513
514 if (!cv)
515 croak ("IO::AIO callback must be undef or a CODE reference");
516
517 return (SV *)cv;
518} 672}
519 673
520#define dREQ \ 674#define dREQ \
521 SV *cb_cv; \ 675 SV *cb_cv; \
522 aio_req req; \ 676 aio_req req; \
… …
536 PUTBACK; \ 690 PUTBACK; \
537 req_submit (req); \ 691 req_submit (req); \
538 SPAGAIN; \ 692 SPAGAIN; \
539 \ 693 \
540 if (GIMME_V != G_VOID) \ 694 if (GIMME_V != G_VOID) \
541 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 695 XPUSHs (req_sv (req, aio_req_stash));
542
543static int
544extract_fd (SV *fh, int wr)
545{
546 int fd = PerlIO_fileno (wr ? IoOFP (sv_2io (fh)) : IoIFP (sv_2io (fh)));
547
548 if (fd < 0)
549 croak ("illegal fh argument, either not an OS file or read/write mode mismatch");
550
551 return fd;
552}
553 696
554MODULE = IO::AIO PACKAGE = IO::AIO 697MODULE = IO::AIO PACKAGE = IO::AIO
555 698
556PROTOTYPES: ENABLE 699PROTOTYPES: ENABLE
557 700
558BOOT: 701BOOT:
559{ 702{
560 stash = gv_stashpv ("IO::AIO", 1);
561
562 static const struct { 703 static const struct {
563 const char *name; 704 const char *name;
564 IV iv; 705 IV iv;
565 } *civ, const_iv[] = { 706 } *civ, const_iv[] = {
566# define const_iv(name, value) { # name, (IV) value }, 707# define const_niv(name, value) { # name, (IV) value },
708# define const_iv(name) { # name, (IV) name },
567# define const_eio(name) { # name, (IV) EIO_ ## name }, 709# define const_eio(name) { # name, (IV) EIO_ ## name },
568 const_iv (EXDEV , EXDEV) 710 const_iv (EXDEV)
569 const_iv (ENOSYS , ENOSYS) 711 const_iv (ENOSYS)
570 const_iv (O_RDONLY, O_RDONLY) 712 const_iv (O_RDONLY)
571 const_iv (O_WRONLY, O_WRONLY) 713 const_iv (O_WRONLY)
714 const_iv (O_RDWR)
572 const_iv (O_CREAT , O_CREAT) 715 const_iv (O_CREAT)
573 const_iv (O_TRUNC , O_TRUNC) 716 const_iv (O_TRUNC)
717 const_iv (O_EXCL)
718 const_iv (O_APPEND)
574#ifndef _WIN32 719#ifndef _WIN32
575 const_iv (S_IFIFO , S_IFIFO) 720 const_iv (S_IFIFO)
576#endif 721#endif
722 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
723 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
724 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
725 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
726 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
727 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
728
729 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
730 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
731 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
732 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
733 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
734
735 const_iv (ST_RDONLY)
736 const_iv (ST_NOSUID)
737 const_iv (ST_NODEV)
738 const_iv (ST_NOEXEC)
739 const_iv (ST_SYNCHRONOUS)
740 const_iv (ST_MANDLOCK)
741 const_iv (ST_WRITE)
742 const_iv (ST_APPEND)
743 const_iv (ST_IMMUTABLE)
744 const_iv (ST_NOATIME)
745 const_iv (ST_NODIRATIME)
746 const_iv (ST_RELATIME)
747
748 const_iv (PROT_EXEC)
749 const_iv (PROT_NONE)
750 const_iv (PROT_READ)
751 const_iv (PROT_WRITE)
752
753 /*const_iv (MAP_FIXED)*/
754 const_iv (MAP_PRIVATE)
755 const_iv (MAP_SHARED)
756 const_iv (MAP_ANONYMOUS)
757
758 /* linuxish */
759 const_iv (MAP_HUGETLB)
760 const_iv (MAP_LOCKED)
761 const_iv (MAP_NORESERVE)
762 const_iv (MAP_POPULATE)
763 const_iv (MAP_NONBLOCK)
764
765 const_iv (MCL_FUTURE)
766 const_iv (MCL_CURRENT)
767
768 const_eio (MS_ASYNC)
769 const_eio (MS_INVALIDATE)
770 const_eio (MS_SYNC)
771
772 const_eio (MT_MODIFY)
773
577 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE) 774 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
578 const_eio (SYNC_FILE_RANGE_WRITE) 775 const_eio (SYNC_FILE_RANGE_WRITE)
579 const_eio (SYNC_FILE_RANGE_WAIT_AFTER) 776 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
580 777
581 const_eio (READDIR_DENTS) 778 const_eio (READDIR_DENTS)
… …
592 const_eio (DT_LNK) 789 const_eio (DT_LNK)
593 const_eio (DT_SOCK) 790 const_eio (DT_SOCK)
594 const_eio (DT_WHT) 791 const_eio (DT_WHT)
595 }; 792 };
596 793
794 aio_stash = gv_stashpv ("IO::AIO" , 1);
795 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
796 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
797
597 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) 798 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
598 newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv)); 799 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
800
801 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
599 802
600 create_respipe (); 803 create_respipe ();
601 804
602 if (eio_init (want_poll, done_poll) < 0) 805 if (eio_init (want_poll, done_poll) < 0)
603 croak ("IO::AIO: unable to initialise eio library"); 806 croak ("IO::AIO: unable to initialise eio library");
… …
664 ALIAS: 867 ALIAS:
665 aio_fsync = EIO_FSYNC 868 aio_fsync = EIO_FSYNC
666 aio_fdatasync = EIO_FDATASYNC 869 aio_fdatasync = EIO_FDATASYNC
667 PPCODE: 870 PPCODE:
668{ 871{
669 int fd = extract_fd (fh, 0); 872 int fd = s_fileno_croak (fh, 0);
670 dREQ; 873 dREQ;
671 874
672 req->type = ix; 875 req->type = ix;
673 req->sv1 = newSVsv (fh); 876 req->sv1 = newSVsv (fh);
674 req->int1 = fd; 877 req->int1 = fd;
675 878
676 REQ_SEND (req); 879 REQ_SEND (req);
677} 880}
678 881
679void 882void
680aio_sync_file_range (SV *fh, SV *offset, SV *nbytes, IV flags, SV *callback=&PL_sv_undef) 883aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
681 PROTOTYPE: $$$$;$ 884 PROTOTYPE: $$$$;$
682 PPCODE: 885 PPCODE:
683{ 886{
684 int fd = extract_fd (fh, 0); 887 int fd = s_fileno_croak (fh, 0);
685 dREQ; 888 dREQ;
686 889
687 req->type = EIO_SYNC_FILE_RANGE; 890 req->type = EIO_SYNC_FILE_RANGE;
688 req->sv1 = newSVsv (fh); 891 req->sv1 = newSVsv (fh);
689 req->int1 = fd; 892 req->int1 = fd;
690 req->offs = SvVAL64 (offset); 893 req->offs = offset;
691 req->size = SvVAL64 (nbytes); 894 req->size = nbytes;
692 req->int2 = flags; 895 req->int2 = flags;
693 896
694 REQ_SEND (req); 897 REQ_SEND (req);
695} 898}
696 899
… …
698aio_close (SV *fh, SV *callback=&PL_sv_undef) 901aio_close (SV *fh, SV *callback=&PL_sv_undef)
699 PROTOTYPE: $;$ 902 PROTOTYPE: $;$
700 PPCODE: 903 PPCODE:
701{ 904{
702 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 905 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
703 int fd = extract_fd (fh, 0); 906 int fd = s_fileno_croak (fh, 0);
704 dREQ; 907 dREQ;
705 908
706 if (close_pipe < 0) 909 if (close_pipe < 0)
707 { 910 {
708 int pipefd [2]; 911 int pipefd [2];
… …
730 aio_write = EIO_WRITE 933 aio_write = EIO_WRITE
731 PROTOTYPE: $$$$$;$ 934 PROTOTYPE: $$$$$;$
732 PPCODE: 935 PPCODE:
733{ 936{
734 STRLEN svlen; 937 STRLEN svlen;
735 int fd = extract_fd (fh, ix == EIO_WRITE); 938 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
736 char *svptr = SvPVbyte (data, svlen); 939 char *svptr = SvPVbyte (data, svlen);
737 UV len = SvUV (length); 940 UV len = SvUV (length);
738 941
739 if (dataoffset < 0) 942 if (dataoffset < 0)
740 dataoffset += svlen; 943 dataoffset += svlen;
… …
791 994
792 REQ_SEND; 995 REQ_SEND;
793} 996}
794 997
795void 998void
796aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 999aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
797 PROTOTYPE: $$$$;$ 1000 PROTOTYPE: $$$$;$
798 PPCODE: 1001 PPCODE:
799{ 1002{
800 int ifd = extract_fd (in_fh , 0); 1003 int ifd = s_fileno_croak (in_fh , 0);
801 int ofd = extract_fd (out_fh, 0); 1004 int ofd = s_fileno_croak (out_fh, 1);
802 dREQ; 1005 dREQ;
803 1006
804 req->type = EIO_SENDFILE; 1007 req->type = EIO_SENDFILE;
805 req->sv1 = newSVsv (out_fh); 1008 req->sv1 = newSVsv (out_fh);
806 req->int1 = ofd; 1009 req->int1 = ofd;
807 req->sv2 = newSVsv (in_fh); 1010 req->sv2 = newSVsv (in_fh);
808 req->int2 = ifd; 1011 req->int2 = ifd;
809 req->offs = SvVAL64 (in_offset); 1012 req->offs = in_offset;
810 req->size = length; 1013 req->size = length;
811 1014
812 REQ_SEND; 1015 REQ_SEND;
813} 1016}
814 1017
815void 1018void
816aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1019aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
817 PROTOTYPE: $$$;$ 1020 PROTOTYPE: $$$;$
818 PPCODE: 1021 PPCODE:
819{ 1022{
820 int fd = extract_fd (fh, 0); 1023 int fd = s_fileno_croak (fh, 0);
821 dREQ; 1024 dREQ;
822 1025
823 req->type = EIO_READAHEAD; 1026 req->type = EIO_READAHEAD;
824 req->sv1 = newSVsv (fh); 1027 req->sv1 = newSVsv (fh);
825 req->int1 = fd; 1028 req->int1 = fd;
826 req->offs = SvVAL64 (offset); 1029 req->offs = offset;
827 req->size = length; 1030 req->size = length;
828 1031
829 REQ_SEND; 1032 REQ_SEND;
830} 1033}
831 1034
832void 1035void
833aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1036aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
834 ALIAS: 1037 ALIAS:
835 aio_stat = EIO_STAT 1038 aio_stat = EIO_STAT
836 aio_lstat = EIO_LSTAT 1039 aio_lstat = EIO_LSTAT
1040 aio_statvfs = EIO_STATVFS
837 PPCODE: 1041 PPCODE:
838{ 1042{
839 dREQ; 1043 dREQ;
840 1044
841 req->sv1 = newSVsv (fh_or_path); 1045 req->sv1 = newSVsv (fh_or_path);
… …
845 req->type = ix; 1049 req->type = ix;
846 req->ptr1 = SvPVbyte_nolen (req->sv1); 1050 req->ptr1 = SvPVbyte_nolen (req->sv1);
847 } 1051 }
848 else 1052 else
849 { 1053 {
850 req->type = EIO_FSTAT; 1054 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
851 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1055 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
852 } 1056 }
853 1057
854 REQ_SEND; 1058 REQ_SEND;
855} 1059}
… …
1018 1222
1019 REQ_SEND; 1223 REQ_SEND;
1020} 1224}
1021 1225
1022void 1226void
1227aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1228 ALIAS:
1229 aio_mtouch = EIO_MTOUCH
1230 aio_msync = EIO_MSYNC
1231 PROTOTYPE: $$$$;$
1232 PPCODE:
1233{
1234 STRLEN svlen;
1235 UV len = SvUV (length);
1236 char *svptr = SvPVbyte (data, svlen);
1237
1238 if (offset < 0)
1239 offset += svlen;
1240
1241 if (offset < 0 || offset > svlen)
1242 croak ("offset outside of scalar");
1243
1244 if (!SvOK (length) || len + offset > svlen)
1245 len = svlen - offset;
1246
1247 {
1248 dREQ;
1249
1250 req->type = ix;
1251 req->size = len;
1252 req->sv2 = SvREFCNT_inc (data);
1253 req->ptr2 = (char *)svptr + offset;
1254 req->int1 = flags;
1255
1256 REQ_SEND;
1257 }
1258}
1259
1260void
1023aio_busy (double delay, SV *callback=&PL_sv_undef) 1261aio_busy (double delay, SV *callback=&PL_sv_undef)
1024 PPCODE: 1262 PPCODE:
1025{ 1263{
1026 dREQ; 1264 dREQ;
1027 1265
… …
1039 dREQ; 1277 dREQ;
1040 1278
1041 req->type = EIO_GROUP; 1279 req->type = EIO_GROUP;
1042 1280
1043 req_submit (req); 1281 req_submit (req);
1044 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1282 XPUSHs (req_sv (req, aio_grp_stash));
1045} 1283}
1046 1284
1047void 1285void
1048aio_nop (SV *callback=&PL_sv_undef) 1286aio_nop (SV *callback=&PL_sv_undef)
1049 ALIAS: 1287 ALIAS:
… …
1101 1339
1102int 1340int
1103poll_fileno() 1341poll_fileno()
1104 PROTOTYPE: 1342 PROTOTYPE:
1105 CODE: 1343 CODE:
1106 RETVAL = respipe [0]; 1344 RETVAL = s_epipe_fd (&respipe);
1107 OUTPUT: 1345 OUTPUT:
1108 RETVAL 1346 RETVAL
1109 1347
1110int 1348int
1111poll_cb(...) 1349poll_cb(...)
… …
1151 CODE: 1389 CODE:
1152 RETVAL = eio_nthreads (); 1390 RETVAL = eio_nthreads ();
1153 OUTPUT: 1391 OUTPUT:
1154 RETVAL 1392 RETVAL
1155 1393
1394int
1395fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1396 PROTOTYPE: $$$$
1397 CODE:
1398 RETVAL = posix_fadvise (fh, offset, length, advice);
1399 OUTPUT:
1400 RETVAL
1401
1402ssize_t
1403sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1404 PROTOTYPE: $$$$
1405 CODE:
1406 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1407 OUTPUT:
1408 RETVAL
1409
1410void
1411mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1412 PROTOTYPE: $$$$$;$
1413 PPCODE:
1414 sv_unmagic (scalar, MMAP_MAGIC);
1415{
1416 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1417 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1418 if (addr == (void *)-1)
1419 XSRETURN_NO;
1420
1421 sv_force_normal (scalar);
1422
1423 /* we store the length in mg_obj, as namlen is I32 :/ */
1424 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1425 ->mg_obj = (SV *)length;
1426
1427 SvUPGRADE (scalar, SVt_PV); /* nop... */
1428
1429 if (!(prot & PROT_WRITE))
1430 SvREADONLY_on (scalar);
1431
1432 if (SvLEN (scalar))
1433 Safefree (SvPVX (scalar));
1434
1435 SvPVX (scalar) = (char *)addr;
1436 SvCUR_set (scalar, length);
1437 SvLEN_set (scalar, 0);
1438 SvPOK_only (scalar);
1439
1440 XSRETURN_YES;
1441}
1442
1443void
1444munmap (SV *scalar)
1445 PROTOTYPE: $
1446 CODE:
1447 sv_unmagic (scalar, MMAP_MAGIC);
1448
1449int
1450madvise (SV *scalar, off_t offset, off_t length, IV advice)
1451 PROTOTYPE: $$$$
1452 CODE:
1453{
1454 char *addr = SvPV_nolen (scalar) + offset;
1455
1456 if (!SvOK (ST (2)))
1457 length = SvCUR (scalar) - offset;
1458
1459 if (addr >= SvEND (scalar) || length <= 0)
1460 XSRETURN_EMPTY;
1461
1462 RETVAL = posix_madvise (addr, length, advice);
1463}
1464 OUTPUT:
1465 RETVAL
1466
1467int
1468mlockall (int flags)
1469 PROTOTYPE: $
1470 CODE:
1471#if _POSIX_MEMLOCK
1472#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7
1473 extern int mallopt (int, int);
1474 mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1475#endif
1476 mlockall (flags);
1477#else
1478 RETVAL = -1;
1479 errno = ENOSYS;
1480#endif
1481 OUTPUT:
1482 RETVAL
1483
1484int
1485munlockall ()
1486 PROTOTYPE:
1487 CODE:
1488#if _POSIX_MEMLOCK
1489 munlockall ();
1490#else
1491 RETVAL = -1;
1492 errno = ENOSYS;
1493#endif
1494 OUTPUT:
1495 RETVAL
1496
1156void _on_next_submit (SV *cb) 1497void _on_next_submit (SV *cb)
1157 CODE: 1498 CODE:
1158 SvREFCNT_dec (on_next_submit); 1499 SvREFCNT_dec (on_next_submit);
1159 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; 1500 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1160 1501
… …
1174 if (GIMME_V != G_VOID) 1515 if (GIMME_V != G_VOID)
1175 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef); 1516 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1176 1517
1177 if (items > 1) 1518 if (items > 1)
1178 { 1519 {
1179 SV *cb_cv = get_cb (callback); 1520 SV *cb_cv =get_cb (callback);
1180 1521
1181 SvREFCNT_dec (req->callback); 1522 SvREFCNT_dec (req->callback);
1182 req->callback = SvREFCNT_inc (cb_cv); 1523 req->callback = SvREFCNT_inc (cb_cv);
1183 } 1524 }
1184} 1525}

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