ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/IO-AIO/AIO.xs
(Generate patch)

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.144 by root, Fri Jun 12 16:48:08 2009 UTC vs.
Revision 1.173 by root, Mon Sep 13 01:59:05 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 PROT_NONE
171# define PROT_NONE 0
172#endif
173#ifndef PROT_READ
174# define PROT_READ 0
175#endif
176#ifndef PROT_WRITE
177# define PROT_READ 0
178#endif
179#ifndef PROT_EXEC
180# define PROT_EXEC 0
181#endif
182
183#ifndef ST_NODEV
184# define ST_NODEV 0
185#endif
186#ifndef ST_NOEXEC
187# define ST_NOEXEC 0
188#endif
189#ifndef ST_SYNCHRONOUS
190# define ST_SYNCHRONOUS 0
191#endif
192#ifndef ST_MANDLOCK
193# define ST_MANDLOCK 0
194#endif
195#ifndef ST_WRITE
196# define ST_WRITE 0
197#endif
198#ifndef ST_APPEND
199# define ST_APPEND 0
200#endif
201#ifndef ST_IMMUTABLE
202# define ST_IMMUTABLE 0
203#endif
204#ifndef ST_NOATIME
205# define ST_NOATIME 0
206#endif
207#ifndef ST_NODIRATIME
208# define ST_NODIRATIME 0
209#endif
210#ifndef ST_RELATIME
211# define ST_RELATIME 0
212#endif
213
214#ifndef MAP_ANONYMOUS
215# ifdef MAP_ANON
216# define MAP_ANONYMOUS MAP_ANON
217# else
218# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
219# endif
220#endif
221#ifndef MAP_HUGETLB
222# define MAP_HUGETLB 0
223#endif
224#ifndef MAP_LOCKED
225# define MAP_LOCKED 0
226#endif
227#ifndef MAP_NORESERVE
228# define MAP_NORESERVE 0
229#endif
230#ifndef MAP_POPULATE
231# define MAP_POPULATE 0
232#endif
233#ifndef MAP_NONBLOCK
234# define MAP_NONBLOCK 0
235#endif
236
237#ifndef PAGESIZE
238# define PAGESIZE sysconf (_SC_PAGESIZE)
239#endif
240
114static int req_invoke (eio_req *req); 241static int req_invoke (eio_req *req);
115#define EIO_FINISH(req) req_invoke (req) 242#define EIO_FINISH(req) req_invoke (req)
116static void req_destroy (eio_req *grp); 243static void req_destroy (eio_req *grp);
117#define EIO_DESTROY(req) req_destroy (req) 244#define EIO_DESTROY(req) req_destroy (req)
118 245
… …
127 254
128static SV *on_next_submit; 255static SV *on_next_submit;
129static int next_pri = EIO_PRI_DEFAULT; 256static int next_pri = EIO_PRI_DEFAULT;
130static int max_outstanding; 257static int max_outstanding;
131 258
132static int respipe_osf [2], respipe [2] = { -1, -1 }; 259static s_epipe respipe;
133 260
134static void req_destroy (aio_req req); 261static void req_destroy (aio_req req);
135static void req_cancel (aio_req req); 262static void req_cancel (aio_req req);
136 263
137static void want_poll (void) 264static void want_poll (void)
138{ 265{
139 /* write a dummy byte to the pipe so fh becomes ready */ 266 /* write a dummy byte to the pipe so fh becomes ready */
140 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1); 267 s_epipe_signal (&respipe);
141} 268}
142 269
143static void done_poll (void) 270static void done_poll (void)
144{ 271{
145 /* read any signals sent by the worker threads */ 272 /* read any signals sent by the worker threads */
146 char buf [4]; 273 s_epipe_drain (&respipe);
147 while (respipe_read (respipe [0], buf, 4) == 4)
148 ;
149} 274}
150 275
151/* must be called at most once */ 276/* must be called at most once */
152static SV *req_sv (aio_req req, const char *klass) 277static SV *req_sv (aio_req req, HV *stash)
153{ 278{
154 if (!req->self) 279 if (!req->self)
155 { 280 {
156 req->self = (SV *)newHV (); 281 req->self = (SV *)newHV ();
157 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 282 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
158 } 283 }
159 284
160 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 285 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
161} 286}
162 287
163static aio_req SvAIO_REQ (SV *sv) 288static aio_req SvAIO_REQ (SV *sv)
164{ 289{
165 MAGIC *mg; 290 MAGIC *mg;
166 291
167 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 292 if (!SvROK (sv)
293 || (SvSTASH (SvRV (sv)) != aio_grp_stash
294 && SvSTASH (SvRV (sv)) != aio_req_stash
295 && !sv_derived_from (sv, "IO::AIO::REQ")))
168 croak ("object of class " AIO_REQ_KLASS " expected"); 296 croak ("object of class IO::AIO::REQ expected");
169 297
170 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 298 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
171 299
172 return mg ? (aio_req)mg->mg_ptr : 0; 300 return mg ? (aio_req)mg->mg_ptr : 0;
173} 301}
… …
179 dSP; 307 dSP;
180 308
181 ENTER; 309 ENTER;
182 SAVETMPS; 310 SAVETMPS;
183 PUSHMARK (SP); 311 PUSHMARK (SP);
184 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 312 XPUSHs (req_sv (grp, aio_grp_stash));
185 PUTBACK; 313 PUTBACK;
186 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 314 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
187 SPAGAIN; 315 SPAGAIN;
188 FREETMPS; 316 FREETMPS;
189 LEAVE; 317 LEAVE;
… …
207 } 335 }
208} 336}
209 337
210static int req_invoke (eio_req *req) 338static int req_invoke (eio_req *req)
211{ 339{
212 dSP;
213
214 if (req->flags & FLAG_SV2_RO_OFF) 340 if (req->flags & FLAG_SV2_RO_OFF)
215 SvREADONLY_off (req->sv2); 341 SvREADONLY_off (req->sv2);
216 342
217 if (!EIO_CANCELLED (req) && req->callback) 343 if (!EIO_CANCELLED (req) && req->callback)
218 { 344 {
345 dSP;
346 static SV *sv_result_cache; /* caches the result integer SV */
347 SV *sv_result;
348
219 ENTER; 349 ENTER;
220 SAVETMPS; 350 SAVETMPS;
221 PUSHMARK (SP); 351 PUSHMARK (SP);
222 EXTEND (SP, 1); 352 EXTEND (SP, 1);
353
354 /* do not recreate the result IV from scratch each time */
355 if (expect_true (sv_result_cache))
356 {
357 sv_result = sv_result_cache; sv_result_cache = 0;
358 SvIV_set (sv_result, req->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 ();
… …
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#%u", (unsigned int)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&=%u", 447 "%s&=%d",
306 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", 448 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
307 (unsigned int)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(), su 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# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
643#endif
644
645#define MMAP_MAGIC PERL_MAGIC_ext
646
647static int
648mmap_free (pTHX_ SV *sv, MAGIC *mg)
649{
650 int old_errno = errno;
651 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
652 errno = old_errno;
653
654 mg->mg_obj = 0; /* just in case */
655
656 SvREADONLY_off (sv);
657
658 if (SvPVX (sv) != mg->mg_ptr)
659 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
660
661 SvCUR_set (sv, 0);
662 SvPVX (sv) = 0;
663 SvOK_off (sv);
664
665 return 0;
666}
667
668static MGVTBL mmap_vtbl = {
669 0, 0, 0, 0, mmap_free
670};
671
672/*****************************************************************************/
673
502static SV * 674static SV *
503get_cb (SV *cb_sv) 675get_cb (SV *cb_sv)
504{ 676{
505 HV *st; 677 SvGETMAGIC (cb_sv);
506 GV *gvp; 678 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} 679}
519 680
520#define dREQ \ 681#define dREQ \
521 SV *cb_cv; \ 682 SV *cb_cv; \
522 aio_req req; \ 683 aio_req req; \
… …
536 PUTBACK; \ 697 PUTBACK; \
537 req_submit (req); \ 698 req_submit (req); \
538 SPAGAIN; \ 699 SPAGAIN; \
539 \ 700 \
540 if (GIMME_V != G_VOID) \ 701 if (GIMME_V != G_VOID) \
541 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 702 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}
553 703
554MODULE = IO::AIO PACKAGE = IO::AIO 704MODULE = IO::AIO PACKAGE = IO::AIO
555 705
556PROTOTYPES: ENABLE 706PROTOTYPES: ENABLE
557 707
558BOOT: 708BOOT:
559{ 709{
560 stash = gv_stashpv ("IO::AIO", 1);
561
562 static const struct { 710 static const struct {
563 const char *name; 711 const char *name;
564 IV iv; 712 IV iv;
565 } *civ, const_iv[] = { 713 } *civ, const_iv[] = {
566# define const_iv(name, value) { # name, (IV) value }, 714# define const_niv(name, value) { # name, (IV) value },
715# define const_iv(name) { # name, (IV) name },
567# define const_eio(name) { # name, (IV) EIO_ ## name }, 716# define const_eio(name) { # name, (IV) EIO_ ## name },
568 const_iv (EXDEV , EXDEV) 717 const_iv (EXDEV)
569 const_iv (ENOSYS , ENOSYS) 718 const_iv (ENOSYS)
570 const_iv (O_RDONLY, O_RDONLY) 719 const_iv (O_RDONLY)
571 const_iv (O_WRONLY, O_WRONLY) 720 const_iv (O_WRONLY)
721 const_iv (O_RDWR)
572 const_iv (O_CREAT , O_CREAT) 722 const_iv (O_CREAT)
573 const_iv (O_TRUNC , O_TRUNC) 723 const_iv (O_TRUNC)
724 const_iv (O_EXCL)
725 const_iv (O_APPEND)
574#ifndef _WIN32 726#ifndef _WIN32
575 const_iv (S_IFIFO , S_IFIFO) 727 const_iv (S_IFIFO)
576#endif 728#endif
729 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
730 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
731 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
732 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
733 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
734 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
735
736 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
737 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
738 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
739 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
740 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
741
742 const_iv (ST_RDONLY)
743 const_iv (ST_NOSUID)
744 const_iv (ST_NODEV)
745 const_iv (ST_NOEXEC)
746 const_iv (ST_SYNCHRONOUS)
747 const_iv (ST_MANDLOCK)
748 const_iv (ST_WRITE)
749 const_iv (ST_APPEND)
750 const_iv (ST_IMMUTABLE)
751 const_iv (ST_NOATIME)
752 const_iv (ST_NODIRATIME)
753 const_iv (ST_RELATIME)
754
755 const_iv (PROT_NONE)
756 const_iv (PROT_EXEC)
757 const_iv (PROT_READ)
758 const_iv (PROT_WRITE)
759
760 /*const_iv (MAP_FIXED)*/
761 const_iv (MAP_PRIVATE)
762 const_iv (MAP_SHARED)
763 const_iv (MAP_ANONYMOUS)
764
765 /* linuxish */
766 const_iv (MAP_HUGETLB)
767 const_iv (MAP_LOCKED)
768 const_iv (MAP_NORESERVE)
769 const_iv (MAP_POPULATE)
770 const_iv (MAP_NONBLOCK)
771
772 const_eio (MCL_FUTURE)
773 const_eio (MCL_CURRENT)
774
775 const_eio (MS_ASYNC)
776 const_eio (MS_INVALIDATE)
777 const_eio (MS_SYNC)
778
779 const_eio (MT_MODIFY)
780
577 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE) 781 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
578 const_eio (SYNC_FILE_RANGE_WRITE) 782 const_eio (SYNC_FILE_RANGE_WRITE)
579 const_eio (SYNC_FILE_RANGE_WAIT_AFTER) 783 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
580 784
581 const_eio (READDIR_DENTS) 785 const_eio (READDIR_DENTS)
… …
592 const_eio (DT_LNK) 796 const_eio (DT_LNK)
593 const_eio (DT_SOCK) 797 const_eio (DT_SOCK)
594 const_eio (DT_WHT) 798 const_eio (DT_WHT)
595 }; 799 };
596 800
801 aio_stash = gv_stashpv ("IO::AIO" , 1);
802 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
803 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
804
597 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) 805 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
598 newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv)); 806 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
807
808 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
599 809
600 create_respipe (); 810 create_respipe ();
601 811
602 if (eio_init (want_poll, done_poll) < 0) 812 if (eio_init (want_poll, done_poll) < 0)
603 croak ("IO::AIO: unable to initialise eio library"); 813 croak ("IO::AIO: unable to initialise eio library");
… …
642 CODE: 852 CODE:
643 max_outstanding = maxreqs; 853 max_outstanding = maxreqs;
644 854
645void 855void
646aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 856aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
647 PROTOTYPE: $$$;$
648 PPCODE: 857 PPCODE:
649{ 858{
650 dREQ; 859 dREQ;
651 860
652 req->type = EIO_OPEN; 861 req->type = EIO_OPEN;
… …
658 REQ_SEND; 867 REQ_SEND;
659} 868}
660 869
661void 870void
662aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 871aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
663 PROTOTYPE: $;$
664 ALIAS: 872 ALIAS:
665 aio_fsync = EIO_FSYNC 873 aio_fsync = EIO_FSYNC
666 aio_fdatasync = EIO_FDATASYNC 874 aio_fdatasync = EIO_FDATASYNC
667 PPCODE: 875 PPCODE:
668{ 876{
669 int fd = extract_fd (fh, 0); 877 int fd = s_fileno_croak (fh, 0);
670 dREQ; 878 dREQ;
671 879
672 req->type = ix; 880 req->type = ix;
673 req->sv1 = newSVsv (fh); 881 req->sv1 = newSVsv (fh);
674 req->int1 = fd; 882 req->int1 = fd;
675 883
676 REQ_SEND (req); 884 REQ_SEND (req);
677} 885}
678 886
679void 887void
680aio_sync_file_range (SV *fh, SV *offset, SV *nbytes, IV flags, SV *callback=&PL_sv_undef) 888aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
681 PROTOTYPE: $$$$;$
682 PPCODE: 889 PPCODE:
683{ 890{
684 int fd = extract_fd (fh, 0); 891 int fd = s_fileno_croak (fh, 0);
685 dREQ; 892 dREQ;
686 893
687 req->type = EIO_SYNC_FILE_RANGE; 894 req->type = EIO_SYNC_FILE_RANGE;
688 req->sv1 = newSVsv (fh); 895 req->sv1 = newSVsv (fh);
689 req->int1 = fd; 896 req->int1 = fd;
690 req->offs = SvVAL64 (offset); 897 req->offs = offset;
691 req->size = SvVAL64 (nbytes); 898 req->size = nbytes;
692 req->int2 = flags; 899 req->int2 = flags;
693 900
694 REQ_SEND (req); 901 REQ_SEND (req);
695} 902}
696 903
697void 904void
698aio_close (SV *fh, SV *callback=&PL_sv_undef) 905aio_close (SV *fh, SV *callback=&PL_sv_undef)
699 PROTOTYPE: $;$
700 PPCODE: 906 PPCODE:
701{ 907{
702 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 908 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
703 int fd = extract_fd (fh, 0); 909 int fd = s_fileno_croak (fh, 0);
704 dREQ; 910 dREQ;
705 911
706 if (close_pipe < 0) 912 if (close_pipe < 0)
707 { 913 {
708 int pipefd [2]; 914 int pipefd [2];
… …
726void 932void
727aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 933aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
728 ALIAS: 934 ALIAS:
729 aio_read = EIO_READ 935 aio_read = EIO_READ
730 aio_write = EIO_WRITE 936 aio_write = EIO_WRITE
731 PROTOTYPE: $$$$$;$
732 PPCODE: 937 PPCODE:
733{ 938{
734 STRLEN svlen; 939 STRLEN svlen;
735 int fd = extract_fd (fh, ix == EIO_WRITE); 940 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
736 char *svptr = SvPVbyte (data, svlen); 941 char *svptr = SvPVbyte (data, svlen);
737 UV len = SvUV (length); 942 UV len = SvUV (length);
738 943
739 if (dataoffset < 0) 944 if (dataoffset < 0)
740 dataoffset += svlen; 945 dataoffset += svlen;
… …
777 } 982 }
778} 983}
779 984
780void 985void
781aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 986aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
782 PROTOTYPE: $$;$
783 PPCODE: 987 PPCODE:
784{ 988{
785 SV *data; 989 SV *data;
786 dREQ; 990 dREQ;
787 991
… …
791 995
792 REQ_SEND; 996 REQ_SEND;
793} 997}
794 998
795void 999void
796aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1000aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
797 PROTOTYPE: $$$$;$
798 PPCODE: 1001 PPCODE:
799{ 1002{
800 int ifd = extract_fd (in_fh , 0); 1003 int ifd = s_fileno_croak (in_fh , 0);
801 int ofd = extract_fd (out_fh, 0); 1004 int ofd = s_fileno_croak (out_fh, 1);
802 dREQ; 1005 dREQ;
803 1006
804 req->type = EIO_SENDFILE; 1007 req->type = EIO_SENDFILE;
805 req->sv1 = newSVsv (out_fh); 1008 req->sv1 = newSVsv (out_fh);
806 req->int1 = ofd; 1009 req->int1 = ofd;
807 req->sv2 = newSVsv (in_fh); 1010 req->sv2 = newSVsv (in_fh);
808 req->int2 = ifd; 1011 req->int2 = ifd;
809 req->offs = SvVAL64 (in_offset); 1012 req->offs = in_offset;
810 req->size = length; 1013 req->size = length;
811 1014
812 REQ_SEND; 1015 REQ_SEND;
813} 1016}
814 1017
815void 1018void
816aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1019aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
817 PROTOTYPE: $$$;$
818 PPCODE: 1020 PPCODE:
819{ 1021{
820 int fd = extract_fd (fh, 0); 1022 int fd = s_fileno_croak (fh, 0);
821 dREQ; 1023 dREQ;
822 1024
823 req->type = EIO_READAHEAD; 1025 req->type = EIO_READAHEAD;
824 req->sv1 = newSVsv (fh); 1026 req->sv1 = newSVsv (fh);
825 req->int1 = fd; 1027 req->int1 = fd;
826 req->offs = SvVAL64 (offset); 1028 req->offs = offset;
827 req->size = length; 1029 req->size = length;
828 1030
829 REQ_SEND; 1031 REQ_SEND;
830} 1032}
831 1033
832void 1034void
833aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1035aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
834 ALIAS: 1036 ALIAS:
835 aio_stat = EIO_STAT 1037 aio_stat = EIO_STAT
836 aio_lstat = EIO_LSTAT 1038 aio_lstat = EIO_LSTAT
1039 aio_statvfs = EIO_STATVFS
837 PPCODE: 1040 PPCODE:
838{ 1041{
839 dREQ; 1042 dREQ;
840 1043
841 req->sv1 = newSVsv (fh_or_path); 1044 req->sv1 = newSVsv (fh_or_path);
… …
845 req->type = ix; 1048 req->type = ix;
846 req->ptr1 = SvPVbyte_nolen (req->sv1); 1049 req->ptr1 = SvPVbyte_nolen (req->sv1);
847 } 1050 }
848 else 1051 else
849 { 1052 {
850 req->type = EIO_FSTAT; 1053 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
851 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1054 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
852 } 1055 }
853 1056
854 REQ_SEND; 1057 REQ_SEND;
855} 1058}
… …
1018 1221
1019 REQ_SEND; 1222 REQ_SEND;
1020} 1223}
1021 1224
1022void 1225void
1226aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1227 ALIAS:
1228 aio_mtouch = EIO_MTOUCH
1229 aio_msync = EIO_MSYNC
1230 PPCODE:
1231{
1232 STRLEN svlen;
1233 char *svptr = SvPVbyte (data, svlen);
1234 UV len = SvUV (length);
1235
1236 if (offset < 0)
1237 offset += svlen;
1238
1239 if (offset < 0 || offset > svlen)
1240 croak ("offset outside of scalar");
1241
1242 if (!SvOK (length) || len + offset > svlen)
1243 len = svlen - offset;
1244
1245 {
1246 dREQ;
1247
1248 req->type = ix;
1249 req->sv2 = SvREFCNT_inc (data);
1250 req->ptr2 = (char *)svptr + offset;
1251 req->size = len;
1252 req->int1 = flags;
1253
1254 REQ_SEND;
1255 }
1256}
1257
1258void
1259aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1260 PPCODE:
1261{
1262 STRLEN svlen;
1263 char *svptr = SvPVbyte (data, svlen);
1264 UV len = SvUV (length);
1265
1266 if (offset < 0)
1267 offset += svlen;
1268
1269 if (offset < 0 || offset > svlen)
1270 croak ("offset outside of scalar");
1271
1272 if (!SvOK (length) || len + offset > svlen)
1273 len = svlen - offset;
1274
1275 {
1276 dREQ;
1277
1278 req->type = EIO_MLOCK;
1279 req->sv2 = SvREFCNT_inc (data);
1280 req->ptr2 = (char *)svptr + offset;
1281 req->size = len;
1282
1283 REQ_SEND;
1284 }
1285}
1286
1287void
1288aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1289 PPCODE:
1290{
1291 dREQ;
1292
1293 req->type = EIO_MLOCKALL;
1294 req->int1 = flags;
1295
1296 REQ_SEND;
1297}
1298
1299void
1023aio_busy (double delay, SV *callback=&PL_sv_undef) 1300aio_busy (double delay, SV *callback=&PL_sv_undef)
1024 PPCODE: 1301 PPCODE:
1025{ 1302{
1026 dREQ; 1303 dREQ;
1027 1304
… …
1031 REQ_SEND; 1308 REQ_SEND;
1032} 1309}
1033 1310
1034void 1311void
1035aio_group (SV *callback=&PL_sv_undef) 1312aio_group (SV *callback=&PL_sv_undef)
1036 PROTOTYPE: ;$
1037 PPCODE: 1313 PPCODE:
1038{ 1314{
1039 dREQ; 1315 dREQ;
1040 1316
1041 req->type = EIO_GROUP; 1317 req->type = EIO_GROUP;
1042 1318
1043 req_submit (req); 1319 req_submit (req);
1044 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1320 XPUSHs (req_sv (req, aio_grp_stash));
1045} 1321}
1046 1322
1047void 1323void
1048aio_nop (SV *callback=&PL_sv_undef) 1324aio_nop (SV *callback=&PL_sv_undef)
1049 ALIAS: 1325 ALIAS:
… …
1058 REQ_SEND; 1334 REQ_SEND;
1059} 1335}
1060 1336
1061int 1337int
1062aioreq_pri (int pri = 0) 1338aioreq_pri (int pri = 0)
1063 PROTOTYPE: ;$
1064 CODE: 1339 CODE:
1065 RETVAL = next_pri; 1340 RETVAL = next_pri;
1066 if (items > 0) 1341 if (items > 0)
1067 { 1342 {
1068 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1343 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
… …
1080 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1355 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1081 next_pri = nice; 1356 next_pri = nice;
1082 1357
1083void 1358void
1084flush () 1359flush ()
1085 PROTOTYPE:
1086 CODE: 1360 CODE:
1087 while (eio_nreqs ()) 1361 while (eio_nreqs ())
1088 { 1362 {
1089 poll_wait (); 1363 poll_wait ();
1090 poll_cb (); 1364 poll_cb ();
1091 } 1365 }
1092 1366
1093int 1367int
1094poll() 1368poll ()
1095 PROTOTYPE:
1096 CODE: 1369 CODE:
1097 poll_wait (); 1370 poll_wait ();
1098 RETVAL = poll_cb (); 1371 RETVAL = poll_cb ();
1099 OUTPUT: 1372 OUTPUT:
1100 RETVAL 1373 RETVAL
1101 1374
1102int 1375int
1103poll_fileno() 1376poll_fileno ()
1104 PROTOTYPE:
1105 CODE: 1377 CODE:
1106 RETVAL = respipe [0]; 1378 RETVAL = s_epipe_fd (&respipe);
1107 OUTPUT: 1379 OUTPUT:
1108 RETVAL 1380 RETVAL
1109 1381
1110int 1382int
1111poll_cb(...) 1383poll_cb (...)
1112 PROTOTYPE: 1384 PROTOTYPE:
1113 CODE: 1385 CODE:
1114 RETVAL = poll_cb (); 1386 RETVAL = poll_cb ();
1115 OUTPUT: 1387 OUTPUT:
1116 RETVAL 1388 RETVAL
1117 1389
1118void 1390void
1119poll_wait() 1391poll_wait ()
1120 PROTOTYPE:
1121 CODE: 1392 CODE:
1122 poll_wait (); 1393 poll_wait ();
1123 1394
1124int 1395int
1125nreqs() 1396nreqs ()
1126 PROTOTYPE:
1127 CODE: 1397 CODE:
1128 RETVAL = eio_nreqs (); 1398 RETVAL = eio_nreqs ();
1129 OUTPUT: 1399 OUTPUT:
1130 RETVAL 1400 RETVAL
1131 1401
1132int 1402int
1133nready() 1403nready ()
1134 PROTOTYPE:
1135 CODE: 1404 CODE:
1136 RETVAL = eio_nready (); 1405 RETVAL = eio_nready ();
1137 OUTPUT: 1406 OUTPUT:
1138 RETVAL 1407 RETVAL
1139 1408
1140int 1409int
1141npending() 1410npending ()
1142 PROTOTYPE:
1143 CODE: 1411 CODE:
1144 RETVAL = eio_npending (); 1412 RETVAL = eio_npending ();
1145 OUTPUT: 1413 OUTPUT:
1146 RETVAL 1414 RETVAL
1147 1415
1148int 1416int
1149nthreads() 1417nthreads ()
1150 PROTOTYPE:
1151 CODE: 1418 CODE:
1152 RETVAL = eio_nthreads (); 1419 RETVAL = eio_nthreads ();
1153 OUTPUT: 1420 OUTPUT:
1154 RETVAL 1421 RETVAL
1155 1422
1423int
1424fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1425 CODE:
1426 RETVAL = posix_fadvise (fh, offset, length, advice);
1427 OUTPUT:
1428 RETVAL
1429
1430ssize_t
1431sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1432 CODE:
1433 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1434 OUTPUT:
1435 RETVAL
1436
1437void
1438mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1439 PPCODE:
1440 sv_unmagic (scalar, MMAP_MAGIC);
1441{
1442 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1443 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1444 if (addr == (void *)-1)
1445 XSRETURN_NO;
1446
1447 sv_force_normal (scalar);
1448
1449 /* we store the length in mg_obj, as namlen is I32 :/ */
1450 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1451 ->mg_obj = (SV *)length;
1452
1453 SvUPGRADE (scalar, SVt_PV); /* nop... */
1454
1455 if (!(prot & PROT_WRITE))
1456 SvREADONLY_on (scalar);
1457
1458 if (SvLEN (scalar))
1459 Safefree (SvPVX (scalar));
1460
1461 SvPVX (scalar) = (char *)addr;
1462 SvCUR_set (scalar, length);
1463 SvLEN_set (scalar, 0);
1464 SvPOK_only (scalar);
1465
1466 XSRETURN_YES;
1467}
1468
1469void
1470munmap (SV *scalar)
1471 CODE:
1472 sv_unmagic (scalar, MMAP_MAGIC);
1473
1474int
1475madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1476 ALIAS:
1477 mprotect = 1
1478 CODE:
1479{
1480 STRLEN svlen;
1481 void *addr = SvPVbyte (scalar, svlen);
1482 size_t len = SvUV (length);
1483
1484 if (offset < 0)
1485 offset += svlen;
1486
1487 if (offset < 0 || offset > svlen)
1488 croak ("offset outside of scalar");
1489
1490 if (!SvOK (length) || len + offset > svlen)
1491 len = svlen - offset;
1492
1493 addr = (void *)(((intptr_t)addr) + offset);
1494 eio_page_align (&addr, &len);
1495
1496 switch (ix)
1497 {
1498 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1499 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1500 }
1501}
1502 OUTPUT:
1503 RETVAL
1504
1505int
1506munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1507 CODE:
1508{
1509 STRLEN svlen;
1510 void *addr = SvPVbyte (scalar, svlen);
1511 size_t len = SvUV (length);
1512
1513 if (offset < 0)
1514 offset += svlen;
1515
1516 if (offset < 0 || offset > svlen)
1517 croak ("offset outside of scalar");
1518
1519 if (!SvOK (length) || len + offset > svlen)
1520 len = svlen - offset;
1521
1522 addr = (void *)(((intptr_t)addr) + offset);
1523 eio_page_align (&addr, &len);
1524#if _POSIX_MEMLOCK
1525 RETVAL = munlock (addr, len);
1526#else
1527 RETVAL = ((errno = ENOSYS), -1);
1528#endif
1529}
1530 OUTPUT:
1531 RETVAL
1532
1533int
1534munlockall ()
1535 CODE:
1536#if _POSIX_MEMLOCK
1537 munlockall ();
1538#else
1539 RETVAL = -1;
1540 errno = ENOSYS;
1541#endif
1542 OUTPUT:
1543 RETVAL
1544
1156void _on_next_submit (SV *cb) 1545void _on_next_submit (SV *cb)
1157 CODE: 1546 CODE:
1158 SvREFCNT_dec (on_next_submit); 1547 SvREFCNT_dec (on_next_submit);
1159 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; 1548 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1160 1549
… …
1174 if (GIMME_V != G_VOID) 1563 if (GIMME_V != G_VOID)
1175 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef); 1564 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1176 1565
1177 if (items > 1) 1566 if (items > 1)
1178 { 1567 {
1179 SV *cb_cv = get_cb (callback); 1568 SV *cb_cv =get_cb (callback);
1180 1569
1181 SvREFCNT_dec (req->callback); 1570 SvREFCNT_dec (req->callback);
1182 req->callback = SvREFCNT_inc (cb_cv); 1571 req->callback = SvREFCNT_inc (cb_cv);
1183 } 1572 }
1184} 1573}

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines