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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.141 by root, Sat Jun 6 17:25:13 2009 UTC vs.
Revision 1.179 by root, Fri Jan 7 21:47:15 2011 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_MEMLOCK_RANGE || _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; \
108 SV *self; 119 SV *self;
109 120
110#define EIO_NO_WRAPPERS 1 121#define EIO_NO_WRAPPERS 1
111 122
123#include "libeio/config.h"
112#include "libeio/eio.h" 124#include "libeio/eio.h"
125
126#ifndef POSIX_FADV_NORMAL
127# define POSIX_FADV_NORMAL 0
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 !HAVE_POSIX_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#endif
152#ifndef POSIX_MADV_SEQUENTIAL
153# define POSIX_MADV_SEQUENTIAL 0
154#endif
155#ifndef POSIX_MADV_RANDOM
156# define POSIX_MADV_RANDOM 0
157#endif
158#ifndef POSIX_MADV_WILLNEED
159# define POSIX_MADV_WILLNEED 0
160#endif
161#ifndef POSIX_MADV_DONTNEED
162# define POSIX_MADV_DONTNEED 0
163#endif
164
165#if !HAVE_POSIX_MADVISE
166# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
167#endif
168
169#ifndef PROT_NONE
170# define PROT_NONE 0
171#endif
172#ifndef PROT_READ
173# define PROT_READ 0
174#endif
175#ifndef PROT_WRITE
176# define PROT_READ 0
177#endif
178#ifndef PROT_EXEC
179# define PROT_EXEC 0
180#endif
181
182#ifndef ST_NODEV
183# define ST_NODEV 0
184#endif
185#ifndef ST_NOEXEC
186# define ST_NOEXEC 0
187#endif
188#ifndef ST_SYNCHRONOUS
189# define ST_SYNCHRONOUS 0
190#endif
191#ifndef ST_MANDLOCK
192# define ST_MANDLOCK 0
193#endif
194#ifndef ST_WRITE
195# define ST_WRITE 0
196#endif
197#ifndef ST_APPEND
198# define ST_APPEND 0
199#endif
200#ifndef ST_IMMUTABLE
201# define ST_IMMUTABLE 0
202#endif
203#ifndef ST_NOATIME
204# define ST_NOATIME 0
205#endif
206#ifndef ST_NODIRATIME
207# define ST_NODIRATIME 0
208#endif
209#ifndef ST_RELATIME
210# define ST_RELATIME 0
211#endif
212
213#ifndef MAP_ANONYMOUS
214# ifdef MAP_ANON
215# define MAP_ANONYMOUS MAP_ANON
216# else
217# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
218# endif
219#endif
220#ifndef MAP_HUGETLB
221# define MAP_HUGETLB 0
222#endif
223#ifndef MAP_LOCKED
224# define MAP_LOCKED 0
225#endif
226#ifndef MAP_NORESERVE
227# define MAP_NORESERVE 0
228#endif
229#ifndef MAP_POPULATE
230# define MAP_POPULATE 0
231#endif
232#ifndef MAP_NONBLOCK
233# define MAP_NONBLOCK 0
234#endif
235
236#ifndef PAGESIZE
237# define PAGESIZE sysconf (_SC_PAGESIZE)
238#endif
113 239
114static int req_invoke (eio_req *req); 240static int req_invoke (eio_req *req);
115#define EIO_FINISH(req) req_invoke (req) 241#define EIO_FINISH(req) req_invoke (req)
116static void req_destroy (eio_req *grp); 242static void req_destroy (eio_req *grp);
117#define EIO_DESTROY(req) req_destroy (req) 243#define EIO_DESTROY(req) req_destroy (req)
… …
127 253
128static SV *on_next_submit; 254static SV *on_next_submit;
129static int next_pri = EIO_PRI_DEFAULT; 255static int next_pri = EIO_PRI_DEFAULT;
130static int max_outstanding; 256static int max_outstanding;
131 257
132static int respipe_osf [2], respipe [2] = { -1, -1 }; 258static s_epipe respipe;
133 259
134static void req_destroy (aio_req req); 260static void req_destroy (aio_req req);
135static void req_cancel (aio_req req); 261static void req_cancel (aio_req req);
136 262
137static void want_poll (void) 263static void want_poll (void)
138{ 264{
139 /* write a dummy byte to the pipe so fh becomes ready */ 265 /* write a dummy byte to the pipe so fh becomes ready */
140 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1); 266 s_epipe_signal (&respipe);
141} 267}
142 268
143static void done_poll (void) 269static void done_poll (void)
144{ 270{
145 /* read any signals sent by the worker threads */ 271 /* read any signals sent by the worker threads */
146 char buf [4]; 272 s_epipe_drain (&respipe);
147 while (respipe_read (respipe [0], buf, 4) == 4)
148 ;
149} 273}
150 274
151/* must be called at most once */ 275/* must be called at most once */
152static SV *req_sv (aio_req req, const char *klass) 276static SV *req_sv (aio_req req, HV *stash)
153{ 277{
154 if (!req->self) 278 if (!req->self)
155 { 279 {
156 req->self = (SV *)newHV (); 280 req->self = (SV *)newHV ();
157 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 281 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
158 } 282 }
159 283
160 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 284 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
161} 285}
162 286
163static aio_req SvAIO_REQ (SV *sv) 287static aio_req SvAIO_REQ (SV *sv)
164{ 288{
165 MAGIC *mg; 289 MAGIC *mg;
166 290
167 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 291 if (!SvROK (sv)
292 || (SvSTASH (SvRV (sv)) != aio_grp_stash
293 && SvSTASH (SvRV (sv)) != aio_req_stash
294 && !sv_derived_from (sv, "IO::AIO::REQ")))
168 croak ("object of class " AIO_REQ_KLASS " expected"); 295 croak ("object of class IO::AIO::REQ expected");
169 296
170 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 297 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
171 298
172 return mg ? (aio_req)mg->mg_ptr : 0; 299 return mg ? (aio_req)mg->mg_ptr : 0;
173} 300}
… …
179 dSP; 306 dSP;
180 307
181 ENTER; 308 ENTER;
182 SAVETMPS; 309 SAVETMPS;
183 PUSHMARK (SP); 310 PUSHMARK (SP);
184 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 311 XPUSHs (req_sv (grp, aio_grp_stash));
185 PUTBACK; 312 PUTBACK;
186 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 313 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
187 SPAGAIN; 314 SPAGAIN;
188 FREETMPS; 315 FREETMPS;
189 LEAVE; 316 LEAVE;
… …
207 } 334 }
208} 335}
209 336
210static int req_invoke (eio_req *req) 337static int req_invoke (eio_req *req)
211{ 338{
212 dSP;
213
214 if (req->flags & FLAG_SV2_RO_OFF) 339 if (req->flags & FLAG_SV2_RO_OFF)
215 SvREADONLY_off (req->sv2); 340 SvREADONLY_off (req->sv2);
216 341
217 if (!EIO_CANCELLED (req) && req->callback) 342 if (!EIO_CANCELLED (req) && req->callback)
218 { 343 {
344 dSP;
345 static SV *sv_result_cache; /* caches the result integer SV */
346 SV *sv_result;
347
219 ENTER; 348 ENTER;
220 SAVETMPS; 349 SAVETMPS;
221 PUSHMARK (SP); 350 PUSHMARK (SP);
222 EXTEND (SP, 1); 351 EXTEND (SP, 1);
352
353 /* do not recreate the result IV from scratch each time */
354 if (expect_true (sv_result_cache))
355 {
356 sv_result = sv_result_cache; sv_result_cache = 0;
357 SvIV_set (sv_result, req->result);
358 SvIOK_only (sv_result);
359 }
360 else
361 {
362 sv_result = newSViv (req->result);
363 SvREADONLY_on (sv_result);
364 }
223 365
224 switch (req->type) 366 switch (req->type)
225 { 367 {
226 case EIO_READDIR: 368 case EIO_READDIR:
227 { 369 {
228 SV *rv = &PL_sv_undef; 370 SV *rv = &PL_sv_undef;
229 371
230 if (req->result >= 0) 372 if (req->result >= 0)
231 { 373 {
232 int i; 374 int i;
233 char *buf = req->ptr2; 375 char *names = (char *)req->ptr2;
376 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
234 AV *av = newAV (); 377 AV *av = newAV ();
235 378
236 av_extend (av, req->result - 1); 379 av_extend (av, req->result - 1);
237 380
238 for (i = 0; i < req->result; ++i) 381 for (i = 0; i < req->result; ++i)
239 { 382 {
240 if (req->int1 & EIO_READDIR_DENTS) 383 if (req->int1 & EIO_READDIR_DENTS)
241 { 384 {
242 eio_dirent *ent = (eio_dirent *)buf;
243 SV *namesv = newSVpvn (ent->name, ent->namelen); 385 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
244 386
245 if (req->int1 & EIO_READDIR_CUSTOM2) 387 if (req->int1 & EIO_READDIR_CUSTOM2)
246 { 388 {
247 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */ 389 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
248 AV *avent = newAV (); 390 AV *avent = newAV ();
… …
254 sv_type [ent->type] = newSViv (ent->type); 396 sv_type [ent->type] = newSViv (ent->type);
255 SvREADONLY_on (sv_type [ent->type]); 397 SvREADONLY_on (sv_type [ent->type]);
256 } 398 }
257 399
258 av_store (avent, 0, namesv); 400 av_store (avent, 0, namesv);
401 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
259 av_store (avent, 1, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode)); 402 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
260 av_store (avent, 2, SvREFCNT_inc (sv_type [ent->type]));
261 403
262 av_store (av, i, newRV_noinc ((SV *)avent)); 404 av_store (av, i, newRV_noinc ((SV *)avent));
263 } 405 }
264 else 406 else
265 av_store (av, i, namesv); 407 av_store (av, i, namesv);
266 408
267 buf += sizeof (eio_dirent); 409 ++ent;
268 } 410 }
269 else 411 else
270 { 412 {
271 SV *name = newSVpv (buf, 0); 413 SV *name = newSVpv (names, 0);
272 av_store (av, i, name); 414 av_store (av, i, name);
273 buf += SvCUR (name) + 1; 415 names += SvCUR (name) + 1;
274 } 416 }
275 } 417 }
276 418
277 rv = sv_2mortal (newRV_noinc ((SV *)av)); 419 rv = sv_2mortal (newRV_noinc ((SV *)av));
278 } 420 }
… …
294 GV *gv = (GV *)sv_newmortal (); 436 GV *gv = (GV *)sv_newmortal ();
295 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 437 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
296 char sym [64]; 438 char sym [64];
297 int symlen; 439 int symlen;
298 440
299 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 441 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
300 gv_init (gv, stash, sym, symlen, 0); 442 gv_init (gv, aio_stash, sym, symlen, 0);
301 443
302 symlen = snprintf ( 444 symlen = snprintf (
303 sym, 445 sym,
304 sizeof (sym), 446 sizeof (sym),
305 "%s&=%d", 447 "%s&=%d",
306 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", 448 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
307 req->result 449 (int)req->result
308 ); 450 );
309 451
310 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 452 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
311 fh = (SV *)gv; 453 fh = (SV *)gv;
312 } 454 }
313 455
314 PUSHs (fh); 456 PUSHs (fh);
315 } 457 }
458 break;
459
460 case EIO_STATVFS:
461 case EIO_FSTATVFS:
462 {
463 SV *rv = &PL_sv_undef;
464
465 if (req->result >= 0)
466 {
467 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
468 HV *hv = newHV ();
469
470 rv = sv_2mortal (newRV_noinc ((SV *)hv));
471
472 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
473 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
474 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
475 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
476 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
477 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
478 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
479 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
480 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
481 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
482 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
483 }
484
485 PUSHs (rv);
486 }
487
316 break; 488 break;
317 489
318 case EIO_GROUP: 490 case EIO_GROUP:
319 req->int1 = 2; /* mark group as finished */ 491 req->int1 = 2; /* mark group as finished */
320 492
… …
342 case EIO_LSTAT: 514 case EIO_LSTAT:
343 case EIO_FSTAT: 515 case EIO_FSTAT:
344 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 516 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
345 PL_laststatval = req->result; 517 PL_laststatval = req->result;
346 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 518 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
347 PUSHs (sv_2mortal (newSViv (req->result))); 519 PUSHs (sv_result);
348 break; 520 break;
349 521
350 case EIO_READ: 522 case EIO_READ:
351 { 523 {
352 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 524 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
353 *SvEND (req->sv2) = 0; 525 *SvEND (req->sv2) = 0;
354 SvPOK_only (req->sv2); 526 SvPOK_only (req->sv2);
355 SvSETMAGIC (req->sv2); 527 SvSETMAGIC (req->sv2);
356 PUSHs (sv_2mortal (newSViv (req->result))); 528 PUSHs (sv_result);
357 } 529 }
358 break; 530 break;
359 531
360 case EIO_DUP2: 532 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
361 if (req->result > 0) 533 if (req->result > 0)
362 req->result = 0; 534 SvIV_set (sv_result, 0);
363 /* FALLTHROUGH */ 535 /* FALLTHROUGH */
364 536
365 default: 537 default:
366 PUSHs (sv_2mortal (newSViv (req->result))); 538 PUSHs (sv_result);
367 break; 539 break;
368 } 540 }
369 541
370 errno = req->errorno; 542 errno = req->errorno;
371 543
372 PUTBACK; 544 PUTBACK;
373 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 545 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
374 SPAGAIN; 546 SPAGAIN;
547
548 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
549 SvREFCNT_dec (sv_result);
550 else
551 sv_result_cache = sv_result;
375 552
376 FREETMPS; 553 FREETMPS;
377 LEAVE; 554 LEAVE;
378 555
379 PUTBACK; 556 PUTBACK;
… …
408 grp->sv2 = 0; 585 grp->sv2 = 0;
409 586
410 eio_grp_cancel (grp); 587 eio_grp_cancel (grp);
411} 588}
412 589
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 590static void
420create_respipe (void) 591create_respipe (void)
421{ 592{
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)) 593 if (s_epipe_renew (&respipe))
431#endif
432 croak ("unable to initialize result pipe"); 594 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} 595}
456 596
457static void poll_wait (void) 597static void poll_wait (void)
458{ 598{
459 fd_set rfd;
460
461 while (eio_nreqs ()) 599 while (eio_nreqs ())
462 { 600 {
463 int size; 601 int size;
464 602
465 X_LOCK (reslock); 603 X_LOCK (reslock);
… …
469 if (size) 607 if (size)
470 return; 608 return;
471 609
472 etp_maybe_start_thread (); 610 etp_maybe_start_thread ();
473 611
474 FD_ZERO (&rfd); 612 s_epipe_wait (&respipe);
475 FD_SET (respipe [0], &rfd);
476
477 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
478 } 613 }
479} 614}
480 615
481static int poll_cb (void) 616static int poll_cb (void)
482{ 617{
… …
497static void atfork_child (void) 632static void atfork_child (void)
498{ 633{
499 create_respipe (); 634 create_respipe ();
500} 635}
501 636
637/*****************************************************************************/
638
639#if !_POSIX_MAPPED_FILES
640# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
641# define munmap(addr,length) (errno = ENOSYS, -1)
642#endif
643
644#if !_POSIX_MEMORY_PROTECTION
645# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
646# define PROT_NONE 0
647# define PROT_WRITE 0
648# define MAP_PRIVATE 0
649# define MAP_SHARED 0
650# define MAP_FIXED 0
651#endif
652
653#define MMAP_MAGIC PERL_MAGIC_ext
654
655static int
656mmap_free (pTHX_ SV *sv, MAGIC *mg)
657{
658 int old_errno = errno;
659 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
660 errno = old_errno;
661
662 mg->mg_obj = 0; /* just in case */
663
664 SvREADONLY_off (sv);
665
666 if (SvPVX (sv) != mg->mg_ptr)
667 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
668
669 SvCUR_set (sv, 0);
670 SvPVX (sv) = 0;
671 SvOK_off (sv);
672
673 return 0;
674}
675
676static MGVTBL mmap_vtbl = {
677 0, 0, 0, 0, mmap_free
678};
679
680/*****************************************************************************/
681
502static SV * 682static SV *
503get_cb (SV *cb_sv) 683get_cb (SV *cb_sv)
504{ 684{
505 HV *st; 685 SvGETMAGIC (cb_sv);
506 GV *gvp; 686 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} 687}
519 688
520#define dREQ \ 689#define dREQ \
521 SV *cb_cv; \ 690 SV *cb_cv; \
522 aio_req req; \ 691 aio_req req; \
… …
536 PUTBACK; \ 705 PUTBACK; \
537 req_submit (req); \ 706 req_submit (req); \
538 SPAGAIN; \ 707 SPAGAIN; \
539 \ 708 \
540 if (GIMME_V != G_VOID) \ 709 if (GIMME_V != G_VOID) \
541 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 710 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}
553 711
554MODULE = IO::AIO PACKAGE = IO::AIO 712MODULE = IO::AIO PACKAGE = IO::AIO
555 713
556PROTOTYPES: ENABLE 714PROTOTYPES: ENABLE
557 715
558BOOT: 716BOOT:
559{ 717{
560 stash = gv_stashpv ("IO::AIO", 1);
561
562 static const struct { 718 static const struct {
563 const char *name; 719 const char *name;
564 IV iv; 720 IV iv;
565 } *civ, const_iv[] = { 721 } *civ, const_iv[] = {
566# define const_iv(name, value) { # name, (IV) value }, 722# define const_niv(name, value) { # name, (IV) value },
723# define const_iv(name) { # name, (IV) name },
567# define const_eio(name) { # name, (IV) EIO_ ## name }, 724# define const_eio(name) { # name, (IV) EIO_ ## name },
568 const_iv (EXDEV , EXDEV) 725 const_iv (EXDEV)
569 const_iv (ENOSYS , ENOSYS) 726 const_iv (ENOSYS)
570 const_iv (O_RDONLY, O_RDONLY) 727 const_iv (O_RDONLY)
571 const_iv (O_WRONLY, O_WRONLY) 728 const_iv (O_WRONLY)
729 const_iv (O_RDWR)
572 const_iv (O_CREAT , O_CREAT) 730 const_iv (O_CREAT)
573 const_iv (O_TRUNC , O_TRUNC) 731 const_iv (O_TRUNC)
732 const_iv (O_EXCL)
733 const_iv (O_APPEND)
574#ifndef _WIN32 734#ifndef _WIN32
575 const_iv (S_IFIFO , S_IFIFO) 735 const_iv (S_IFIFO)
576#endif 736#endif
737 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
738 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
739 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
740 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
741 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
742 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
743
744 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
745 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
746 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
747 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
748 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
749
750 const_iv (ST_RDONLY)
751 const_iv (ST_NOSUID)
752 const_iv (ST_NODEV)
753 const_iv (ST_NOEXEC)
754 const_iv (ST_SYNCHRONOUS)
755 const_iv (ST_MANDLOCK)
756 const_iv (ST_WRITE)
757 const_iv (ST_APPEND)
758 const_iv (ST_IMMUTABLE)
759 const_iv (ST_NOATIME)
760 const_iv (ST_NODIRATIME)
761 const_iv (ST_RELATIME)
762
763 const_iv (PROT_NONE)
764 const_iv (PROT_EXEC)
765 const_iv (PROT_READ)
766 const_iv (PROT_WRITE)
767
768 /*const_iv (MAP_FIXED)*/
769 const_iv (MAP_PRIVATE)
770 const_iv (MAP_SHARED)
771 const_iv (MAP_ANONYMOUS)
772
773 /* linuxish */
774 const_iv (MAP_HUGETLB)
775 const_iv (MAP_LOCKED)
776 const_iv (MAP_NORESERVE)
777 const_iv (MAP_POPULATE)
778 const_iv (MAP_NONBLOCK)
779
780 const_eio (MCL_FUTURE)
781 const_eio (MCL_CURRENT)
782
783 const_eio (MS_ASYNC)
784 const_eio (MS_INVALIDATE)
785 const_eio (MS_SYNC)
786
787 const_eio (MT_MODIFY)
788
577 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE) 789 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
578 const_eio (SYNC_FILE_RANGE_WRITE) 790 const_eio (SYNC_FILE_RANGE_WRITE)
579 const_eio (SYNC_FILE_RANGE_WAIT_AFTER) 791 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
580 792
581 const_eio (READDIR_DENTS) 793 const_eio (READDIR_DENTS)
… …
592 const_eio (DT_LNK) 804 const_eio (DT_LNK)
593 const_eio (DT_SOCK) 805 const_eio (DT_SOCK)
594 const_eio (DT_WHT) 806 const_eio (DT_WHT)
595 }; 807 };
596 808
809 aio_stash = gv_stashpv ("IO::AIO" , 1);
810 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
811 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
812
597 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) 813 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
598 newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv)); 814 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
815
816 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
599 817
600 create_respipe (); 818 create_respipe ();
601 819
602 if (eio_init (want_poll, done_poll) < 0) 820 if (eio_init (want_poll, done_poll) < 0)
603 croak ("IO::AIO: unable to initialise eio library"); 821 croak ("IO::AIO: unable to initialise eio library");
… …
642 CODE: 860 CODE:
643 max_outstanding = maxreqs; 861 max_outstanding = maxreqs;
644 862
645void 863void
646aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 864aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
647 PROTOTYPE: $$$;$
648 PPCODE: 865 PPCODE:
649{ 866{
650 dREQ; 867 dREQ;
651 868
652 req->type = EIO_OPEN; 869 req->type = EIO_OPEN;
… …
658 REQ_SEND; 875 REQ_SEND;
659} 876}
660 877
661void 878void
662aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 879aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
663 PROTOTYPE: $;$
664 ALIAS: 880 ALIAS:
665 aio_fsync = EIO_FSYNC 881 aio_fsync = EIO_FSYNC
666 aio_fdatasync = EIO_FDATASYNC 882 aio_fdatasync = EIO_FDATASYNC
667 PPCODE: 883 PPCODE:
668{ 884{
669 int fd = extract_fd (fh, 0); 885 int fd = s_fileno_croak (fh, 0);
670 dREQ; 886 dREQ;
671 887
672 req->type = ix; 888 req->type = ix;
673 req->sv1 = newSVsv (fh); 889 req->sv1 = newSVsv (fh);
674 req->int1 = fd; 890 req->int1 = fd;
675 891
676 REQ_SEND (req); 892 REQ_SEND (req);
677} 893}
678 894
679void 895void
680aio_sync_file_range (SV *fh, SV *offset, SV *nbytes, IV flags, SV *callback=&PL_sv_undef) 896aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
681 PROTOTYPE: $$$$;$
682 PPCODE: 897 PPCODE:
683{ 898{
684 int fd = extract_fd (fh, 0); 899 int fd = s_fileno_croak (fh, 0);
685 dREQ; 900 dREQ;
686 901
687 req->type = EIO_SYNC_FILE_RANGE; 902 req->type = EIO_SYNC_FILE_RANGE;
688 req->sv1 = newSVsv (fh); 903 req->sv1 = newSVsv (fh);
689 req->int1 = fd; 904 req->int1 = fd;
690 req->offs = SvVAL64 (offset); 905 req->offs = offset;
691 req->size = SvVAL64 (nbytes); 906 req->size = nbytes;
692 req->int2 = flags; 907 req->int2 = flags;
693 908
694 REQ_SEND (req); 909 REQ_SEND (req);
695} 910}
696 911
697void 912void
698aio_close (SV *fh, SV *callback=&PL_sv_undef) 913aio_close (SV *fh, SV *callback=&PL_sv_undef)
699 PROTOTYPE: $;$
700 PPCODE: 914 PPCODE:
701{ 915{
702 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 916 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
703 int fd = extract_fd (fh, 0); 917 int fd = s_fileno_croak (fh, 0);
704 dREQ; 918 dREQ;
705 919
706 if (close_pipe < 0) 920 if (close_pipe < 0)
707 { 921 {
708 int pipefd [2]; 922 int pipefd [2];
… …
726void 940void
727aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 941aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
728 ALIAS: 942 ALIAS:
729 aio_read = EIO_READ 943 aio_read = EIO_READ
730 aio_write = EIO_WRITE 944 aio_write = EIO_WRITE
731 PROTOTYPE: $$$$$;$
732 PPCODE: 945 PPCODE:
733{ 946{
734 STRLEN svlen; 947 STRLEN svlen;
735 int fd = extract_fd (fh, ix == EIO_WRITE); 948 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
736 char *svptr = SvPVbyte (data, svlen); 949 char *svptr = SvPVbyte (data, svlen);
737 UV len = SvUV (length); 950 UV len = SvUV (length);
738 951
739 if (dataoffset < 0) 952 if (dataoffset < 0)
740 dataoffset += svlen; 953 dataoffset += svlen;
… …
777 } 990 }
778} 991}
779 992
780void 993void
781aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 994aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
782 PROTOTYPE: $$;$
783 PPCODE: 995 PPCODE:
784{ 996{
785 SV *data; 997 SV *data;
786 dREQ; 998 dREQ;
787 999
… …
791 1003
792 REQ_SEND; 1004 REQ_SEND;
793} 1005}
794 1006
795void 1007void
796aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1008aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
797 PROTOTYPE: $$$$;$
798 PPCODE: 1009 PPCODE:
799{ 1010{
800 int ifd = extract_fd (in_fh , 0); 1011 int ifd = s_fileno_croak (in_fh , 0);
801 int ofd = extract_fd (out_fh, 0); 1012 int ofd = s_fileno_croak (out_fh, 1);
802 dREQ; 1013 dREQ;
803 1014
804 req->type = EIO_SENDFILE; 1015 req->type = EIO_SENDFILE;
805 req->sv1 = newSVsv (out_fh); 1016 req->sv1 = newSVsv (out_fh);
806 req->int1 = ofd; 1017 req->int1 = ofd;
807 req->sv2 = newSVsv (in_fh); 1018 req->sv2 = newSVsv (in_fh);
808 req->int2 = ifd; 1019 req->int2 = ifd;
809 req->offs = SvVAL64 (in_offset); 1020 req->offs = in_offset;
810 req->size = length; 1021 req->size = length;
811 1022
812 REQ_SEND; 1023 REQ_SEND;
813} 1024}
814 1025
815void 1026void
816aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1027aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
817 PROTOTYPE: $$$;$
818 PPCODE: 1028 PPCODE:
819{ 1029{
820 int fd = extract_fd (fh, 0); 1030 int fd = s_fileno_croak (fh, 0);
821 dREQ; 1031 dREQ;
822 1032
823 req->type = EIO_READAHEAD; 1033 req->type = EIO_READAHEAD;
824 req->sv1 = newSVsv (fh); 1034 req->sv1 = newSVsv (fh);
825 req->int1 = fd; 1035 req->int1 = fd;
826 req->offs = SvVAL64 (offset); 1036 req->offs = offset;
827 req->size = length; 1037 req->size = length;
828 1038
829 REQ_SEND; 1039 REQ_SEND;
830} 1040}
831 1041
832void 1042void
833aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1043aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
834 ALIAS: 1044 ALIAS:
835 aio_stat = EIO_STAT 1045 aio_stat = EIO_STAT
836 aio_lstat = EIO_LSTAT 1046 aio_lstat = EIO_LSTAT
1047 aio_statvfs = EIO_STATVFS
837 PPCODE: 1048 PPCODE:
838{ 1049{
839 dREQ; 1050 dREQ;
840 1051
841 req->sv1 = newSVsv (fh_or_path); 1052 req->sv1 = newSVsv (fh_or_path);
… …
845 req->type = ix; 1056 req->type = ix;
846 req->ptr1 = SvPVbyte_nolen (req->sv1); 1057 req->ptr1 = SvPVbyte_nolen (req->sv1);
847 } 1058 }
848 else 1059 else
849 { 1060 {
850 req->type = EIO_FSTAT; 1061 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
851 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1062 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
852 } 1063 }
853 1064
854 REQ_SEND; 1065 REQ_SEND;
855} 1066}
… …
961 req->sv1 = newSVsv (pathname); 1172 req->sv1 = newSVsv (pathname);
962 req->ptr1 = SvPVbyte_nolen (req->sv1); 1173 req->ptr1 = SvPVbyte_nolen (req->sv1);
963 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1; 1174 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
964 1175
965 if (flags & EIO_READDIR_DENTS) 1176 if (flags & EIO_READDIR_DENTS)
966 flags |= EIO_READDIR_CUSTOM2; 1177 req->int1 |= EIO_READDIR_CUSTOM2;
967 1178
968 REQ_SEND; 1179 REQ_SEND;
969} 1180}
970 1181
971void 1182void
… …
1018 1229
1019 REQ_SEND; 1230 REQ_SEND;
1020} 1231}
1021 1232
1022void 1233void
1234aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1235 ALIAS:
1236 aio_mtouch = EIO_MTOUCH
1237 aio_msync = EIO_MSYNC
1238 PPCODE:
1239{
1240 STRLEN svlen;
1241 char *svptr = SvPVbyte (data, svlen);
1242 UV len = SvUV (length);
1243
1244 if (offset < 0)
1245 offset += svlen;
1246
1247 if (offset < 0 || offset > svlen)
1248 croak ("offset outside of scalar");
1249
1250 if (!SvOK (length) || len + offset > svlen)
1251 len = svlen - offset;
1252
1253 {
1254 dREQ;
1255
1256 req->type = ix;
1257 req->sv2 = SvREFCNT_inc (data);
1258 req->ptr2 = (char *)svptr + offset;
1259 req->size = len;
1260 req->int1 = flags;
1261
1262 REQ_SEND;
1263 }
1264}
1265
1266void
1267aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1268 PPCODE:
1269{
1270 STRLEN svlen;
1271 char *svptr = SvPVbyte (data, svlen);
1272 UV len = SvUV (length);
1273
1274 if (offset < 0)
1275 offset += svlen;
1276
1277 if (offset < 0 || offset > svlen)
1278 croak ("offset outside of scalar");
1279
1280 if (!SvOK (length) || len + offset > svlen)
1281 len = svlen - offset;
1282
1283 {
1284 dREQ;
1285
1286 req->type = EIO_MLOCK;
1287 req->sv2 = SvREFCNT_inc (data);
1288 req->ptr2 = (char *)svptr + offset;
1289 req->size = len;
1290
1291 REQ_SEND;
1292 }
1293}
1294
1295void
1296aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1297 PPCODE:
1298{
1299 dREQ;
1300
1301 req->type = EIO_MLOCKALL;
1302 req->int1 = flags;
1303
1304 REQ_SEND;
1305}
1306
1307void
1023aio_busy (double delay, SV *callback=&PL_sv_undef) 1308aio_busy (double delay, SV *callback=&PL_sv_undef)
1024 PPCODE: 1309 PPCODE:
1025{ 1310{
1026 dREQ; 1311 dREQ;
1027 1312
… …
1031 REQ_SEND; 1316 REQ_SEND;
1032} 1317}
1033 1318
1034void 1319void
1035aio_group (SV *callback=&PL_sv_undef) 1320aio_group (SV *callback=&PL_sv_undef)
1036 PROTOTYPE: ;$
1037 PPCODE: 1321 PPCODE:
1038{ 1322{
1039 dREQ; 1323 dREQ;
1040 1324
1041 req->type = EIO_GROUP; 1325 req->type = EIO_GROUP;
1042 1326
1043 req_submit (req); 1327 req_submit (req);
1044 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1328 XPUSHs (req_sv (req, aio_grp_stash));
1045} 1329}
1046 1330
1047void 1331void
1048aio_nop (SV *callback=&PL_sv_undef) 1332aio_nop (SV *callback=&PL_sv_undef)
1049 ALIAS: 1333 ALIAS:
… …
1058 REQ_SEND; 1342 REQ_SEND;
1059} 1343}
1060 1344
1061int 1345int
1062aioreq_pri (int pri = 0) 1346aioreq_pri (int pri = 0)
1063 PROTOTYPE: ;$
1064 CODE: 1347 CODE:
1065 RETVAL = next_pri; 1348 RETVAL = next_pri;
1066 if (items > 0) 1349 if (items > 0)
1067 { 1350 {
1068 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1351 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
… …
1080 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1363 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1081 next_pri = nice; 1364 next_pri = nice;
1082 1365
1083void 1366void
1084flush () 1367flush ()
1085 PROTOTYPE:
1086 CODE: 1368 CODE:
1087 while (eio_nreqs ()) 1369 while (eio_nreqs ())
1088 { 1370 {
1089 poll_wait (); 1371 poll_wait ();
1090 poll_cb (); 1372 poll_cb ();
1091 } 1373 }
1092 1374
1093int 1375int
1094poll() 1376poll ()
1095 PROTOTYPE:
1096 CODE: 1377 CODE:
1097 poll_wait (); 1378 poll_wait ();
1098 RETVAL = poll_cb (); 1379 RETVAL = poll_cb ();
1099 OUTPUT: 1380 OUTPUT:
1100 RETVAL 1381 RETVAL
1101 1382
1102int 1383int
1103poll_fileno() 1384poll_fileno ()
1104 PROTOTYPE:
1105 CODE: 1385 CODE:
1106 RETVAL = respipe [0]; 1386 RETVAL = s_epipe_fd (&respipe);
1107 OUTPUT: 1387 OUTPUT:
1108 RETVAL 1388 RETVAL
1109 1389
1110int 1390int
1111poll_cb(...) 1391poll_cb (...)
1112 PROTOTYPE: 1392 PROTOTYPE:
1113 CODE: 1393 CODE:
1114 RETVAL = poll_cb (); 1394 RETVAL = poll_cb ();
1115 OUTPUT: 1395 OUTPUT:
1116 RETVAL 1396 RETVAL
1117 1397
1118void 1398void
1119poll_wait() 1399poll_wait ()
1120 PROTOTYPE:
1121 CODE: 1400 CODE:
1122 poll_wait (); 1401 poll_wait ();
1123 1402
1124int 1403int
1125nreqs() 1404nreqs ()
1126 PROTOTYPE:
1127 CODE: 1405 CODE:
1128 RETVAL = eio_nreqs (); 1406 RETVAL = eio_nreqs ();
1129 OUTPUT: 1407 OUTPUT:
1130 RETVAL 1408 RETVAL
1131 1409
1132int 1410int
1133nready() 1411nready ()
1134 PROTOTYPE:
1135 CODE: 1412 CODE:
1136 RETVAL = eio_nready (); 1413 RETVAL = eio_nready ();
1137 OUTPUT: 1414 OUTPUT:
1138 RETVAL 1415 RETVAL
1139 1416
1140int 1417int
1141npending() 1418npending ()
1142 PROTOTYPE:
1143 CODE: 1419 CODE:
1144 RETVAL = eio_npending (); 1420 RETVAL = eio_npending ();
1145 OUTPUT: 1421 OUTPUT:
1146 RETVAL 1422 RETVAL
1147 1423
1148int 1424int
1149nthreads() 1425nthreads ()
1150 PROTOTYPE:
1151 CODE: 1426 CODE:
1152 RETVAL = eio_nthreads (); 1427 RETVAL = eio_nthreads ();
1153 OUTPUT: 1428 OUTPUT:
1154 RETVAL 1429 RETVAL
1155 1430
1431int
1432fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1433 CODE:
1434 RETVAL = posix_fadvise (fh, offset, length, advice);
1435 OUTPUT:
1436 RETVAL
1437
1438ssize_t
1439sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1440 CODE:
1441 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1442 OUTPUT:
1443 RETVAL
1444
1445void
1446mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1447 PPCODE:
1448 sv_unmagic (scalar, MMAP_MAGIC);
1449{
1450 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1451 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1452 if (addr == (void *)-1)
1453 XSRETURN_NO;
1454
1455 sv_force_normal (scalar);
1456
1457 /* we store the length in mg_obj, as namlen is I32 :/ */
1458 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1459 ->mg_obj = (SV *)length;
1460
1461 SvUPGRADE (scalar, SVt_PV); /* nop... */
1462
1463 if (!(prot & PROT_WRITE))
1464 SvREADONLY_on (scalar);
1465
1466 if (SvLEN (scalar))
1467 Safefree (SvPVX (scalar));
1468
1469 SvPVX (scalar) = (char *)addr;
1470 SvCUR_set (scalar, length);
1471 SvLEN_set (scalar, 0);
1472 SvPOK_only (scalar);
1473
1474 XSRETURN_YES;
1475}
1476
1477void
1478munmap (SV *scalar)
1479 CODE:
1480 sv_unmagic (scalar, MMAP_MAGIC);
1481
1482int
1483madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1484 ALIAS:
1485 mprotect = 1
1486 CODE:
1487{
1488 STRLEN svlen;
1489 void *addr = SvPVbyte (scalar, svlen);
1490 size_t len = SvUV (length);
1491
1492 if (offset < 0)
1493 offset += svlen;
1494
1495 if (offset < 0 || offset > svlen)
1496 croak ("offset outside of scalar");
1497
1498 if (!SvOK (length) || len + offset > svlen)
1499 len = svlen - offset;
1500
1501 addr = (void *)(((intptr_t)addr) + offset);
1502 eio_page_align (&addr, &len);
1503
1504 switch (ix)
1505 {
1506 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1507 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1508 }
1509}
1510 OUTPUT:
1511 RETVAL
1512
1513int
1514munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1515 CODE:
1516{
1517 STRLEN svlen;
1518 void *addr = SvPVbyte (scalar, svlen);
1519 size_t len = SvUV (length);
1520
1521 if (offset < 0)
1522 offset += svlen;
1523
1524 if (offset < 0 || offset > svlen)
1525 croak ("offset outside of scalar");
1526
1527 if (!SvOK (length) || len + offset > svlen)
1528 len = svlen - offset;
1529
1530 addr = (void *)(((intptr_t)addr) + offset);
1531 eio_page_align (&addr, &len);
1532#if _POSIX_MEMLOCK_RANGE
1533 RETVAL = munlock (addr, len);
1534#else
1535 RETVAL = ((errno = ENOSYS), -1);
1536#endif
1537}
1538 OUTPUT:
1539 RETVAL
1540
1541int
1542munlockall ()
1543 CODE:
1544#if _POSIX_MEMLOCK
1545 munlockall ();
1546#else
1547 RETVAL = -1;
1548 errno = ENOSYS;
1549#endif
1550 OUTPUT:
1551 RETVAL
1552
1156void _on_next_submit (SV *cb) 1553void _on_next_submit (SV *cb)
1157 CODE: 1554 CODE:
1158 SvREFCNT_dec (on_next_submit); 1555 SvREFCNT_dec (on_next_submit);
1159 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; 1556 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1160 1557
… …
1174 if (GIMME_V != G_VOID) 1571 if (GIMME_V != G_VOID)
1175 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef); 1572 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1176 1573
1177 if (items > 1) 1574 if (items > 1)
1178 { 1575 {
1179 SV *cb_cv = get_cb (callback); 1576 SV *cb_cv =get_cb (callback);
1180 1577
1181 SvREFCNT_dec (req->callback); 1578 SvREFCNT_dec (req->callback);
1182 req->callback = SvREFCNT_inc (cb_cv); 1579 req->callback = SvREFCNT_inc (cb_cv);
1183 } 1580 }
1184} 1581}

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