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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.133 by root, Wed Oct 22 18:15:36 2008 UTC vs.
Revision 1.166 by root, Sun May 9 20:43:28 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#ifndef ST_NODEV
146# define ST_NODEV 0
147#endif
148#ifndef ST_NOEXEC
149# define ST_NOEXEC 0
150#endif
151#ifndef ST_SYNCHRONOUS
152# define ST_SYNCHRONOUS 0
153#endif
154#ifndef ST_MANDLOCK
155# define ST_MANDLOCK 0
156#endif
157#ifndef ST_WRITE
158# define ST_WRITE 0
159#endif
160#ifndef ST_APPEND
161# define ST_APPEND 0
162#endif
163#ifndef ST_IMMUTABLE
164# define ST_IMMUTABLE 0
165#endif
166#ifndef ST_NOATIME
167# define ST_NOATIME 0
168#endif
169#ifndef ST_NODIRATIME
170# define ST_NODIRATIME 0
171#endif
172#ifndef ST_RELATIME
173# define ST_RELATIME 0
174#endif
175
176#ifndef MCL_CURRENT
177# define MCL_CURRENT 0
178#endif
179#ifndef MCL_FUTURE
180# define MCL_FUTURE 0
181#endif
182
183#ifndef MAP_ANONYMOUS
184# ifdef MAP_ANON
185# define MAP_ANONYMOUS MAP_ANON
186# else
187# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
188# endif
189#endif
190#ifndef MAP_HUGETLB
191# define MAP_HUGETLB 0
192#endif
193#ifndef MAP_LOCKED
194# define MAP_LOCKED 0
195#endif
196#ifndef MAP_NORESERVE
197# define MAP_NORESERVE 0
198#endif
199#ifndef MAP_POPULATE
200# define MAP_POPULATE 0
201#endif
202#ifndef MAP_NONBLOCK
203# define MAP_NONBLOCK 0
204#endif
205
206#ifndef PAGESIZE
207# define PAGESIZE sysconf (_SC_PAGESIZE)
208#endif
209
114static int req_invoke (eio_req *req); 210static int req_invoke (eio_req *req);
115#define EIO_FINISH(req) req_invoke (req) 211#define EIO_FINISH(req) req_invoke (req)
116static void req_destroy (eio_req *grp); 212static void req_destroy (eio_req *grp);
117#define EIO_DESTROY(req) req_destroy (req) 213#define EIO_DESTROY(req) req_destroy (req)
118 214
127 223
128static SV *on_next_submit; 224static SV *on_next_submit;
129static int next_pri = EIO_PRI_DEFAULT; 225static int next_pri = EIO_PRI_DEFAULT;
130static int max_outstanding; 226static int max_outstanding;
131 227
132static int respipe_osf [2], respipe [2] = { -1, -1 }; 228static s_epipe respipe;
133 229
134static void req_destroy (aio_req req); 230static void req_destroy (aio_req req);
135static void req_cancel (aio_req req); 231static void req_cancel (aio_req req);
136 232
137static void want_poll (void) 233static void want_poll (void)
138{ 234{
139 /* write a dummy byte to the pipe so fh becomes ready */ 235 /* write a dummy byte to the pipe so fh becomes ready */
140 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1); 236 s_epipe_signal (&respipe);
141} 237}
142 238
143static void done_poll (void) 239static void done_poll (void)
144{ 240{
145 /* read any signals sent by the worker threads */ 241 /* read any signals sent by the worker threads */
146 char buf [4]; 242 s_epipe_drain (&respipe);
147 while (respipe_read (respipe [0], buf, 4) == 4)
148 ;
149} 243}
150 244
151/* must be called at most once */ 245/* must be called at most once */
152static SV *req_sv (aio_req req, const char *klass) 246static SV *req_sv (aio_req req, HV *stash)
153{ 247{
154 if (!req->self) 248 if (!req->self)
155 { 249 {
156 req->self = (SV *)newHV (); 250 req->self = (SV *)newHV ();
157 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 251 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
158 } 252 }
159 253
160 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 254 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
161} 255}
162 256
163static aio_req SvAIO_REQ (SV *sv) 257static aio_req SvAIO_REQ (SV *sv)
164{ 258{
165 MAGIC *mg; 259 MAGIC *mg;
166 260
167 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 261 if (!SvROK (sv)
262 || (SvSTASH (SvRV (sv)) != aio_grp_stash
263 && SvSTASH (SvRV (sv)) != aio_req_stash
264 && !sv_derived_from (sv, "IO::AIO::REQ")))
168 croak ("object of class " AIO_REQ_KLASS " expected"); 265 croak ("object of class IO::AIO::REQ expected");
169 266
170 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 267 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
171 268
172 return mg ? (aio_req)mg->mg_ptr : 0; 269 return mg ? (aio_req)mg->mg_ptr : 0;
173} 270}
179 dSP; 276 dSP;
180 277
181 ENTER; 278 ENTER;
182 SAVETMPS; 279 SAVETMPS;
183 PUSHMARK (SP); 280 PUSHMARK (SP);
184 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 281 XPUSHs (req_sv (grp, aio_grp_stash));
185 PUTBACK; 282 PUTBACK;
186 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 283 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
187 SPAGAIN; 284 SPAGAIN;
188 FREETMPS; 285 FREETMPS;
189 LEAVE; 286 LEAVE;
207 } 304 }
208} 305}
209 306
210static int req_invoke (eio_req *req) 307static int req_invoke (eio_req *req)
211{ 308{
212 dSP;
213
214 if (req->flags & FLAG_SV2_RO_OFF) 309 if (req->flags & FLAG_SV2_RO_OFF)
215 SvREADONLY_off (req->sv2); 310 SvREADONLY_off (req->sv2);
216 311
217 if (!EIO_CANCELLED (req) && req->callback) 312 if (!EIO_CANCELLED (req) && req->callback)
218 { 313 {
314 dSP;
315 static SV *sv_result_cache; /* caches the result integer SV */
316 SV *sv_result;
317
219 ENTER; 318 ENTER;
220 SAVETMPS; 319 SAVETMPS;
221 PUSHMARK (SP); 320 PUSHMARK (SP);
222 EXTEND (SP, 1); 321 EXTEND (SP, 1);
322
323 /* do not recreate the result IV from scratch each time */
324 if (expect_true (sv_result_cache))
325 {
326 sv_result = sv_result_cache; sv_result_cache = 0;
327 SvIV_set (sv_result, req->result);
328 }
329 else
330 {
331 sv_result = newSViv (req->result);
332 SvREADONLY_on (sv_result);
333 }
223 334
224 switch (req->type) 335 switch (req->type)
225 { 336 {
226 case EIO_READDIR: 337 case EIO_READDIR:
227 { 338 {
228 SV *rv = &PL_sv_undef; 339 SV *rv = &PL_sv_undef;
229 340
230 if (req->result >= 0) 341 if (req->result >= 0)
231 { 342 {
232 int i; 343 int i;
233 char *buf = req->ptr2; 344 char *names = (char *)req->ptr2;
345 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
234 AV *av = newAV (); 346 AV *av = newAV ();
235 347
236 av_extend (av, req->result - 1); 348 av_extend (av, req->result - 1);
237 349
238 for (i = 0; i < req->result; ++i) 350 for (i = 0; i < req->result; ++i)
239 { 351 {
240 SV *sv = newSVpv (buf, 0); 352 if (req->int1 & EIO_READDIR_DENTS)
353 {
354 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
241 355
356 if (req->int1 & EIO_READDIR_CUSTOM2)
357 {
358 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
359 AV *avent = newAV ();
360
361 av_extend (avent, 2);
362
363 if (!sv_type [ent->type])
364 {
365 sv_type [ent->type] = newSViv (ent->type);
366 SvREADONLY_on (sv_type [ent->type]);
367 }
368
369 av_store (avent, 0, namesv);
370 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
371 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
372
373 av_store (av, i, newRV_noinc ((SV *)avent));
374 }
375 else
242 av_store (av, i, sv); 376 av_store (av, i, namesv);
377
378 ++ent;
379 }
380 else
381 {
382 SV *name = newSVpv (names, 0);
383 av_store (av, i, name);
243 buf += SvCUR (sv) + 1; 384 names += SvCUR (name) + 1;
385 }
244 } 386 }
245 387
246 rv = sv_2mortal (newRV_noinc ((SV *)av)); 388 rv = sv_2mortal (newRV_noinc ((SV *)av));
247 } 389 }
248 390
249 PUSHs (rv); 391 PUSHs (rv);
392
393 if (req->int1 & EIO_READDIR_CUSTOM1)
394 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
250 } 395 }
251 break; 396 break;
252 397
253 case EIO_OPEN: 398 case EIO_OPEN:
254 { 399 {
260 GV *gv = (GV *)sv_newmortal (); 405 GV *gv = (GV *)sv_newmortal ();
261 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 406 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
262 char sym [64]; 407 char sym [64];
263 int symlen; 408 int symlen;
264 409
265 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 410 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
266 gv_init (gv, stash, sym, symlen, 0); 411 gv_init (gv, aio_stash, sym, symlen, 0);
267 412
268 symlen = snprintf ( 413 symlen = snprintf (
269 sym, 414 sym,
270 sizeof (sym), 415 sizeof (sym),
271 "%s&=%d", 416 "%s&=%d",
272 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", 417 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
273 req->result 418 (int)req->result
274 ); 419 );
275 420
276 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 421 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
277 fh = (SV *)gv; 422 fh = (SV *)gv;
278 } 423 }
279 424
280 PUSHs (fh); 425 PUSHs (fh);
281 } 426 }
427 break;
428
429 case EIO_STATVFS:
430 case EIO_FSTATVFS:
431 {
432 SV *rv = &PL_sv_undef;
433
434 if (req->result >= 0)
435 {
436 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
437 HV *hv = newHV ();
438
439 rv = sv_2mortal (newRV_noinc ((SV *)hv));
440
441 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
442 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
443 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
444 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
445 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
446 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
447 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
448 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
449 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
450 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
451 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
452 }
453
454 PUSHs (rv);
455 }
456
282 break; 457 break;
283 458
284 case EIO_GROUP: 459 case EIO_GROUP:
285 req->int1 = 2; /* mark group as finished */ 460 req->int1 = 2; /* mark group as finished */
286 461
308 case EIO_LSTAT: 483 case EIO_LSTAT:
309 case EIO_FSTAT: 484 case EIO_FSTAT:
310 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 485 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
311 PL_laststatval = req->result; 486 PL_laststatval = req->result;
312 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 487 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
313 PUSHs (sv_2mortal (newSViv (req->result))); 488 PUSHs (sv_result);
314 break; 489 break;
315 490
316 case EIO_READ: 491 case EIO_READ:
492 {
317 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 493 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
318 *SvEND (req->sv2) = 0; 494 *SvEND (req->sv2) = 0;
319 PUSHs (sv_2mortal (newSViv (req->result))); 495 SvPOK_only (req->sv2);
496 SvSETMAGIC (req->sv2);
497 PUSHs (sv_result);
498 }
320 break; 499 break;
321 500
322 case EIO_DUP2: 501 case EIO_DUP2:
323 if (req->result > 0) 502 if (req->result > 0)
324 req->result = 0; 503 SvIV_set (sv_result, 0);
325 /* FALLTHROUGH */ 504 /* FALLTHROUGH */
326 505
327 default: 506 default:
328 PUSHs (sv_2mortal (newSViv (req->result))); 507 PUSHs (sv_result);
329 break; 508 break;
330 } 509 }
331 510
332 errno = req->errorno; 511 errno = req->errorno;
333 512
334 PUTBACK; 513 PUTBACK;
335 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 514 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
336 SPAGAIN; 515 SPAGAIN;
516
517 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
518 SvREFCNT_dec (sv_result);
519 else
520 sv_result_cache = sv_result;
337 521
338 FREETMPS; 522 FREETMPS;
339 LEAVE; 523 LEAVE;
340 524
341 PUTBACK; 525 PUTBACK;
370 grp->sv2 = 0; 554 grp->sv2 = 0;
371 555
372 eio_grp_cancel (grp); 556 eio_grp_cancel (grp);
373} 557}
374 558
375#ifdef USE_SOCKETS_AS_HANDLES
376# define TO_SOCKET(x) (win32_get_osfhandle (x))
377#else
378# define TO_SOCKET(x) (x)
379#endif
380
381static void 559static void
382create_respipe (void) 560create_respipe (void)
383{ 561{
384 int old_readfd = respipe [0];
385
386 if (respipe [1] >= 0)
387 respipe_close (TO_SOCKET (respipe [1]));
388
389#ifdef _WIN32
390 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
391#else
392 if (pipe (respipe)) 562 if (s_epipe_renew (&respipe))
393#endif
394 croak ("unable to initialize result pipe"); 563 croak ("IO::AIO: unable to initialize result pipe");
395
396 if (old_readfd >= 0)
397 {
398 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
399 croak ("unable to initialize result pipe(2)");
400
401 respipe_close (respipe [0]);
402 respipe [0] = old_readfd;
403 }
404
405#ifdef _WIN32
406 int arg = 1;
407 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
408 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
409#else
410 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
411 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
412#endif
413 croak ("unable to initialize result pipe(3)");
414
415 respipe_osf [0] = TO_SOCKET (respipe [0]);
416 respipe_osf [1] = TO_SOCKET (respipe [1]);
417} 564}
418 565
419static void poll_wait (void) 566static void poll_wait (void)
420{ 567{
421 fd_set rfd;
422
423 while (eio_nreqs ()) 568 while (eio_nreqs ())
424 { 569 {
425 int size; 570 int size;
426 571
427 X_LOCK (reslock); 572 X_LOCK (reslock);
431 if (size) 576 if (size)
432 return; 577 return;
433 578
434 etp_maybe_start_thread (); 579 etp_maybe_start_thread ();
435 580
436 FD_ZERO (&rfd); 581 s_epipe_wait (&respipe);
437 FD_SET (respipe [0], &rfd);
438
439 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
440 } 582 }
441} 583}
442 584
443static int poll_cb (void) 585static int poll_cb (void)
444{ 586{
459static void atfork_child (void) 601static void atfork_child (void)
460{ 602{
461 create_respipe (); 603 create_respipe ();
462} 604}
463 605
606/*****************************************************************************/
607
608#if !_POSIX_MAPPED_FILES
609# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
610# define munmap(addr,length) (errno = ENOSYS, -1)
611#endif
612
613#define MMAP_MAGIC PERL_MAGIC_ext
614
615static int
616mmap_free (pTHX_ SV *sv, MAGIC *mg)
617{
618 int old_errno = errno;
619 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
620 errno = old_errno;
621
622 mg->mg_obj = 0; /* just in case */
623
624 SvREADONLY_off (sv);
625 SvCUR_set (sv, 0);
626 SvLEN_set (sv, 0);
627 SvPVX (sv) = 0;
628 SvOK_off (sv);
629
630 return 0;
631}
632
633static MGVTBL mmap_vtbl = {
634 0, 0, 0, 0, mmap_free
635};
636
637/*****************************************************************************/
638
464static SV * 639static SV *
465get_cb (SV *cb_sv) 640get_cb (SV *cb_sv)
466{ 641{
467 HV *st; 642 SvGETMAGIC (cb_sv);
468 GV *gvp; 643 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
469 CV *cv;
470
471 if (!SvOK (cb_sv))
472 return 0;
473
474 cv = sv_2cv (cb_sv, &st, &gvp, 0);
475
476 if (!cv)
477 croak ("IO::AIO callback must be undef or a CODE reference");
478
479 return (SV *)cv;
480} 644}
481 645
482#define dREQ \ 646#define dREQ \
483 SV *cb_cv; \ 647 SV *cb_cv; \
484 aio_req req; \ 648 aio_req req; \
498 PUTBACK; \ 662 PUTBACK; \
499 req_submit (req); \ 663 req_submit (req); \
500 SPAGAIN; \ 664 SPAGAIN; \
501 \ 665 \
502 if (GIMME_V != G_VOID) \ 666 if (GIMME_V != G_VOID) \
503 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 667 XPUSHs (req_sv (req, aio_req_stash));
504 668
505MODULE = IO::AIO PACKAGE = IO::AIO 669MODULE = IO::AIO PACKAGE = IO::AIO
506 670
507PROTOTYPES: ENABLE 671PROTOTYPES: ENABLE
508 672
509BOOT: 673BOOT:
510{ 674{
511 stash = gv_stashpv ("IO::AIO", 1); 675 static const struct {
512 676 const char *name;
513 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 677 IV iv;
514 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 678 } *civ, const_iv[] = {
515 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 679# define const_niv(name, value) { # name, (IV) value },
516 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); 680# define const_iv(name) { # name, (IV) name },
517 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); 681# define const_eio(name) { # name, (IV) EIO_ ## name },
682 const_iv (EXDEV)
683 const_iv (ENOSYS)
684 const_iv (O_RDONLY)
685 const_iv (O_WRONLY)
686 const_iv (O_RDWR)
687 const_iv (O_CREAT)
688 const_iv (O_TRUNC)
689 const_iv (O_EXCL)
690 const_iv (O_APPEND)
518#ifndef _WIN32 691#ifndef _WIN32
519 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); 692 const_iv (S_IFIFO)
520#endif 693#endif
521 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); 694 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
522 newCONSTSUB (stash, "SYNC_FILE_RANGE_WAIT_BEFORE", newSViv (EIO_SYNC_FILE_RANGE_WAIT_BEFORE)); 695 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
523 newCONSTSUB (stash, "SYNC_FILE_RANGE_WRITE" , newSViv (EIO_SYNC_FILE_RANGE_WRITE)); 696 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
524 newCONSTSUB (stash, "SYNC_FILE_RANGE_WAIT_AFTER" , newSViv (EIO_SYNC_FILE_RANGE_WAIT_AFTER)); 697 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
698 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
699 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
525 700
701 const_iv (ST_RDONLY)
702 const_iv (ST_NOSUID)
703 const_iv (ST_NODEV)
704 const_iv (ST_NOEXEC)
705 const_iv (ST_SYNCHRONOUS)
706 const_iv (ST_MANDLOCK)
707 const_iv (ST_WRITE)
708 const_iv (ST_APPEND)
709 const_iv (ST_IMMUTABLE)
710 const_iv (ST_NOATIME)
711 const_iv (ST_NODIRATIME)
712 const_iv (ST_RELATIME)
713
714 const_iv (PROT_EXEC)
715 const_iv (PROT_NONE)
716 const_iv (PROT_READ)
717 const_iv (PROT_WRITE)
718
719 /*const_iv (MAP_FIXED)*/
720 const_iv (MAP_PRIVATE)
721 const_iv (MAP_SHARED)
722 const_iv (MAP_ANONYMOUS)
723
724 /* linuxish */
725 const_iv (MAP_HUGETLB)
726 const_iv (MAP_LOCKED)
727 const_iv (MAP_NORESERVE)
728 const_iv (MAP_POPULATE)
729 const_iv (MAP_NONBLOCK)
730
731 const_iv (MCL_FUTURE)
732 const_iv (MCL_CURRENT)
733
734 const_eio (MS_ASYNC)
735 const_eio (MS_INVALIDATE)
736 const_eio (MS_SYNC)
737
738 const_eio (MT_MODIFY)
739
740 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
741 const_eio (SYNC_FILE_RANGE_WRITE)
742 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
743
744 const_eio (READDIR_DENTS)
745 const_eio (READDIR_DIRS_FIRST)
746 const_eio (READDIR_STAT_ORDER)
747 const_eio (READDIR_FOUND_UNKNOWN)
748
749 const_eio (DT_UNKNOWN)
750 const_eio (DT_FIFO)
751 const_eio (DT_CHR)
752 const_eio (DT_DIR)
753 const_eio (DT_BLK)
754 const_eio (DT_REG)
755 const_eio (DT_LNK)
756 const_eio (DT_SOCK)
757 const_eio (DT_WHT)
758 };
759
760 aio_stash = gv_stashpv ("IO::AIO" , 1);
761 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
762 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
763
764 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
765 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
766
767 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
768
526 create_respipe (); 769 create_respipe ();
527 770
528 if (eio_init (want_poll, done_poll) < 0) 771 if (eio_init (want_poll, done_poll) < 0)
529 croak ("IO::AIO: unable to initialise eio library"); 772 croak ("IO::AIO: unable to initialise eio library");
530 773
531 /* atfork child called in fifo order, so before eio's handler */ 774 /* atfork child called in fifo order, so before eio's handler */
532 X_THREAD_ATFORK (0, 0, atfork_child); 775 X_THREAD_ATFORK (0, 0, atfork_child);
533} 776}
534 777
535void 778void
536max_poll_reqs (int nreqs) 779max_poll_reqs (int nreqs)
537 PROTOTYPE: $ 780 PROTOTYPE: $
590 ALIAS: 833 ALIAS:
591 aio_fsync = EIO_FSYNC 834 aio_fsync = EIO_FSYNC
592 aio_fdatasync = EIO_FDATASYNC 835 aio_fdatasync = EIO_FDATASYNC
593 PPCODE: 836 PPCODE:
594{ 837{
838 int fd = s_fileno_croak (fh, 0);
595 dREQ; 839 dREQ;
596 840
597 req->type = ix; 841 req->type = ix;
598 req->sv1 = newSVsv (fh); 842 req->sv1 = newSVsv (fh);
599 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 843 req->int1 = fd;
600 844
601 REQ_SEND (req); 845 REQ_SEND (req);
602} 846}
603 847
604void 848void
605aio_sync_file_range (SV *fh, SV *offset, SV *nbytes, IV flags, SV *callback=&PL_sv_undef) 849aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
606 PROTOTYPE: $$$$;$ 850 PROTOTYPE: $$$$;$
607 PPCODE: 851 PPCODE:
608{ 852{
853 int fd = s_fileno_croak (fh, 0);
609 dREQ; 854 dREQ;
610 855
611 req->type = EIO_SYNC_FILE_RANGE; 856 req->type = EIO_SYNC_FILE_RANGE;
612 req->sv1 = newSVsv (fh); 857 req->sv1 = newSVsv (fh);
613 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 858 req->int1 = fd;
614 req->offs = SvVAL64 (offset); 859 req->offs = offset;
615 req->size = SvVAL64 (nbytes); 860 req->size = nbytes;
616 req->int2 = flags; 861 req->int2 = flags;
617 862
618 REQ_SEND (req); 863 REQ_SEND (req);
619} 864}
620 865
622aio_close (SV *fh, SV *callback=&PL_sv_undef) 867aio_close (SV *fh, SV *callback=&PL_sv_undef)
623 PROTOTYPE: $;$ 868 PROTOTYPE: $;$
624 PPCODE: 869 PPCODE:
625{ 870{
626 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 871 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
872 int fd = s_fileno_croak (fh, 0);
627 dREQ; 873 dREQ;
628 874
629 if (close_pipe < 0) 875 if (close_pipe < 0)
630 { 876 {
631 int pipefd [2]; 877 int pipefd [2];
639 } 885 }
640 886
641 req->type = EIO_DUP2; 887 req->type = EIO_DUP2;
642 req->int1 = close_pipe; 888 req->int1 = close_pipe;
643 req->sv2 = newSVsv (fh); 889 req->sv2 = newSVsv (fh);
644 req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh))); 890 req->int2 = fd;
645 891
646 REQ_SEND (req); 892 REQ_SEND (req);
647} 893}
648 894
649void 895void
653 aio_write = EIO_WRITE 899 aio_write = EIO_WRITE
654 PROTOTYPE: $$$$$;$ 900 PROTOTYPE: $$$$$;$
655 PPCODE: 901 PPCODE:
656{ 902{
657 STRLEN svlen; 903 STRLEN svlen;
904 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
658 char *svptr = SvPVbyte (data, svlen); 905 char *svptr = SvPVbyte (data, svlen);
659 UV len = SvUV (length); 906 UV len = SvUV (length);
660
661 SvUPGRADE (data, SVt_PV);
662 SvPOK_on (data);
663 907
664 if (dataoffset < 0) 908 if (dataoffset < 0)
665 dataoffset += svlen; 909 dataoffset += svlen;
666 910
667 if (dataoffset < 0 || dataoffset > svlen) 911 if (dataoffset < 0 || dataoffset > svlen)
673 if (!SvOK (length) || len + dataoffset > svlen) 917 if (!SvOK (length) || len + dataoffset > svlen)
674 len = svlen - dataoffset; 918 len = svlen - dataoffset;
675 } 919 }
676 else 920 else
677 { 921 {
678 /* read: grow scalar as necessary */ 922 /* read: check type and grow scalar as necessary */
923 SvUPGRADE (data, SVt_PV);
679 svptr = SvGROW (data, len + dataoffset + 1); 924 svptr = SvGROW (data, len + dataoffset + 1);
680 } 925 }
681 926
682 if (len < 0)
683 croak ("length must not be negative");
684
685 { 927 {
686 dREQ; 928 dREQ;
687 929
688 req->type = ix; 930 req->type = ix;
689 req->sv1 = newSVsv (fh); 931 req->sv1 = newSVsv (fh);
690 req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh)) 932 req->int1 = fd;
691 : IoOFP (sv_2io (fh)));
692 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 933 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
693 req->size = len; 934 req->size = len;
694 req->sv2 = SvREFCNT_inc (data); 935 req->sv2 = SvREFCNT_inc (data);
695 req->ptr2 = (char *)svptr + dataoffset; 936 req->ptr2 = (char *)svptr + dataoffset;
696 req->stroffset = dataoffset; 937 req->stroffset = dataoffset;
719 960
720 REQ_SEND; 961 REQ_SEND;
721} 962}
722 963
723void 964void
724aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 965aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
725 PROTOTYPE: $$$$;$ 966 PROTOTYPE: $$$$;$
726 PPCODE: 967 PPCODE:
727{ 968{
969 int ifd = s_fileno_croak (in_fh , 0);
970 int ofd = s_fileno_croak (out_fh, 1);
728 dREQ; 971 dREQ;
729 972
730 req->type = EIO_SENDFILE; 973 req->type = EIO_SENDFILE;
731 req->sv1 = newSVsv (out_fh); 974 req->sv1 = newSVsv (out_fh);
732 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 975 req->int1 = ofd;
733 req->sv2 = newSVsv (in_fh); 976 req->sv2 = newSVsv (in_fh);
734 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 977 req->int2 = ifd;
735 req->offs = SvVAL64 (in_offset); 978 req->offs = in_offset;
736 req->size = length; 979 req->size = length;
737 980
738 REQ_SEND; 981 REQ_SEND;
739} 982}
740 983
741void 984void
742aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 985aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
743 PROTOTYPE: $$$;$ 986 PROTOTYPE: $$$;$
744 PPCODE: 987 PPCODE:
745{ 988{
989 int fd = s_fileno_croak (fh, 0);
746 dREQ; 990 dREQ;
747 991
748 req->type = EIO_READAHEAD; 992 req->type = EIO_READAHEAD;
749 req->sv1 = newSVsv (fh); 993 req->sv1 = newSVsv (fh);
750 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 994 req->int1 = fd;
751 req->offs = SvVAL64 (offset); 995 req->offs = offset;
752 req->size = length; 996 req->size = length;
753 997
754 REQ_SEND; 998 REQ_SEND;
755} 999}
756 1000
757void 1001void
758aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1002aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
759 ALIAS: 1003 ALIAS:
760 aio_stat = EIO_STAT 1004 aio_stat = EIO_STAT
761 aio_lstat = EIO_LSTAT 1005 aio_lstat = EIO_LSTAT
1006 aio_statvfs = EIO_STATVFS
762 PPCODE: 1007 PPCODE:
763{ 1008{
764 dREQ; 1009 dREQ;
765 1010
766 req->sv1 = newSVsv (fh_or_path); 1011 req->sv1 = newSVsv (fh_or_path);
770 req->type = ix; 1015 req->type = ix;
771 req->ptr1 = SvPVbyte_nolen (req->sv1); 1016 req->ptr1 = SvPVbyte_nolen (req->sv1);
772 } 1017 }
773 else 1018 else
774 { 1019 {
775 req->type = EIO_FSTAT; 1020 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
776 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1021 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
777 } 1022 }
778 1023
779 REQ_SEND; 1024 REQ_SEND;
780} 1025}
875 1120
876 REQ_SEND; 1121 REQ_SEND;
877} 1122}
878 1123
879void 1124void
1125aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1126 PPCODE:
1127{
1128 dREQ;
1129
1130 req->type = EIO_READDIR;
1131 req->sv1 = newSVsv (pathname);
1132 req->ptr1 = SvPVbyte_nolen (req->sv1);
1133 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1134
1135 if (flags & EIO_READDIR_DENTS)
1136 req->int1 |= EIO_READDIR_CUSTOM2;
1137
1138 REQ_SEND;
1139}
1140
1141void
880aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1142aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
881 ALIAS: 1143 ALIAS:
882 aio_unlink = EIO_UNLINK 1144 aio_unlink = EIO_UNLINK
883 aio_rmdir = EIO_RMDIR 1145 aio_rmdir = EIO_RMDIR
884 aio_readdir = EIO_READDIR 1146 aio_readdir = EIO_READDIR
926 1188
927 REQ_SEND; 1189 REQ_SEND;
928} 1190}
929 1191
930void 1192void
1193aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1194 ALIAS:
1195 aio_mtouch = EIO_MTOUCH
1196 aio_msync = EIO_MSYNC
1197 PROTOTYPE: $$$$;$
1198 PPCODE:
1199{
1200 STRLEN svlen;
1201 UV len = SvUV (length);
1202 char *svptr = SvPVbyte (data, svlen);
1203
1204 if (offset < 0)
1205 offset += svlen;
1206
1207 if (offset < 0 || offset > svlen)
1208 croak ("offset outside of scalar");
1209
1210 if (!SvOK (length) || len + offset > svlen)
1211 len = svlen - offset;
1212
1213 {
1214 dREQ;
1215
1216 req->type = ix;
1217 req->size = len;
1218 req->sv2 = SvREFCNT_inc (data);
1219 req->ptr2 = (char *)svptr + offset;
1220 req->int1 = flags;
1221
1222 REQ_SEND;
1223 }
1224}
1225
1226void
931aio_busy (double delay, SV *callback=&PL_sv_undef) 1227aio_busy (double delay, SV *callback=&PL_sv_undef)
932 PPCODE: 1228 PPCODE:
933{ 1229{
934 dREQ; 1230 dREQ;
935 1231
947 dREQ; 1243 dREQ;
948 1244
949 req->type = EIO_GROUP; 1245 req->type = EIO_GROUP;
950 1246
951 req_submit (req); 1247 req_submit (req);
952 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1248 XPUSHs (req_sv (req, aio_grp_stash));
953} 1249}
954 1250
955void 1251void
956aio_nop (SV *callback=&PL_sv_undef) 1252aio_nop (SV *callback=&PL_sv_undef)
957 ALIAS: 1253 ALIAS:
1009 1305
1010int 1306int
1011poll_fileno() 1307poll_fileno()
1012 PROTOTYPE: 1308 PROTOTYPE:
1013 CODE: 1309 CODE:
1014 RETVAL = respipe [0]; 1310 RETVAL = s_epipe_fd (&respipe);
1015 OUTPUT: 1311 OUTPUT:
1016 RETVAL 1312 RETVAL
1017 1313
1018int 1314int
1019poll_cb(...) 1315poll_cb(...)
1059 CODE: 1355 CODE:
1060 RETVAL = eio_nthreads (); 1356 RETVAL = eio_nthreads ();
1061 OUTPUT: 1357 OUTPUT:
1062 RETVAL 1358 RETVAL
1063 1359
1360int
1361fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1362 PROTOTYPE: $$$$
1363 CODE:
1364#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1365 RETVAL = posix_fadvise (fh, offset, length, advice);
1366#else
1367 RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1368#endif
1369 OUTPUT:
1370 RETVAL
1371
1372ssize_t
1373sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1374 PROTOTYPE: $$$$
1375 CODE:
1376 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1377 OUTPUT:
1378 RETVAL
1379
1380void
1381mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1382 PROTOTYPE: $$$$$;$
1383 PPCODE:
1384 sv_unmagic (scalar, MMAP_MAGIC);
1385{
1386 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1387 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1388 if (addr == (void *)-1)
1389 XSRETURN_NO;
1390
1391 /* we store the length in mg_obj, as namlen is I32 :/ */
1392 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1393 ->mg_obj = (SV *)length;
1394
1395 SvUPGRADE (scalar, SVt_PV); /* nop... */
1396 if (!(prot & PROT_WRITE))
1397 SvREADONLY_on (scalar);
1398
1399 SvPVX (scalar) = (char *)addr;
1400 SvCUR_set (scalar, length);
1401 SvLEN_set (scalar, 0);
1402 SvPOK_only (scalar);
1403
1404 XSRETURN_YES;
1405}
1406
1407void
1408munmap (SV *scalar)
1409 PROTOTYPE: $
1410 CODE:
1411 sv_unmagic (scalar, MMAP_MAGIC);
1412
1413int
1414mlockall (int flags)
1415 PROTOTYPE: $
1416 CODE:
1417#if _POSIX_MEMLOCK
1418#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7
1419 extern int mallopt (int, int);
1420 mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1421#endif
1422 mlockall (flags);
1423#else
1424 RETVAL = -1;
1425 errno = ENOSYS;
1426#endif
1427 OUTPUT:
1428 RETVAL
1429
1430int
1431munlockall ()
1432 PROTOTYPE:
1433 CODE:
1434#if _POSIX_MEMLOCK
1435 munlockall ();
1436#else
1437 RETVAL = -1;
1438 errno = ENOSYS;
1439#endif
1440 OUTPUT:
1441 RETVAL
1442
1064void _on_next_submit (SV *cb) 1443void _on_next_submit (SV *cb)
1065 CODE: 1444 CODE:
1066 SvREFCNT_dec (on_next_submit); 1445 SvREFCNT_dec (on_next_submit);
1067 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; 1446 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1068 1447
1082 if (GIMME_V != G_VOID) 1461 if (GIMME_V != G_VOID)
1083 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef); 1462 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1084 1463
1085 if (items > 1) 1464 if (items > 1)
1086 { 1465 {
1087 SV *cb_cv = get_cb (callback); 1466 SV *cb_cv =get_cb (callback);
1088 1467
1089 SvREFCNT_dec (req->callback); 1468 SvREFCNT_dec (req->callback);
1090 req->callback = SvREFCNT_inc (cb_cv); 1469 req->callback = SvREFCNT_inc (cb_cv);
1091 } 1470 }
1092} 1471}
1129 AV *av; 1508 AV *av;
1130 1509
1131 grp->errorno = errno; 1510 grp->errorno = errno;
1132 1511
1133 av = newAV (); 1512 av = newAV ();
1513 av_extend (av, items - 1);
1134 1514
1135 for (i = 1; i < items; ++i ) 1515 for (i = 1; i < items; ++i )
1136 av_push (av, newSVsv (ST (i))); 1516 av_push (av, newSVsv (ST (i)));
1137 1517
1138 SvREFCNT_dec (grp->sv1); 1518 SvREFCNT_dec (grp->sv1);

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