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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.143 by root, Sat Jun 6 19:44:17 2009 UTC vs.
Revision 1.175 by root, Wed Dec 1 04:43:12 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#endif
128#ifndef POSIX_FADV_SEQUENTIAL
129# define POSIX_FADV_SEQUENTIAL 0
130#endif
131#ifndef POSIX_FADV_RANDOM
132# define POSIX_FADV_RANDOM 0
133#endif
134#ifndef POSIX_FADV_NOREUSE
135# define POSIX_FADV_NOREUSE 0
136#endif
137#ifndef POSIX_FADV_WILLNEED
138# define POSIX_FADV_WILLNEED 0
139#endif
140#ifndef POSIX_FADV_DONTNEED
141# define POSIX_FADV_DONTNEED 0
142#endif
143
144#if !HAVE_POSIX_FADVISE
145# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
146#endif
147
148#ifndef POSIX_MADV_NORMAL
149# define POSIX_MADV_NORMAL 0
150#endif
151#ifndef POSIX_MADV_SEQUENTIAL
152# define POSIX_MADV_SEQUENTIAL 0
153#endif
154#ifndef POSIX_MADV_RANDOM
155# define POSIX_MADV_RANDOM 0
156#endif
157#ifndef POSIX_MADV_WILLNEED
158# define POSIX_MADV_WILLNEED 0
159#endif
160#ifndef POSIX_MADV_DONTNEED
161# define POSIX_MADV_DONTNEED 0
162#endif
163
164#if !HAVE_POSIX_MADVISE
165# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
166#endif
167
168#ifndef PROT_NONE
169# define PROT_NONE 0
170#endif
171#ifndef PROT_READ
172# define PROT_READ 0
173#endif
174#ifndef PROT_WRITE
175# define PROT_READ 0
176#endif
177#ifndef PROT_EXEC
178# define PROT_EXEC 0
179#endif
180
181#ifndef ST_NODEV
182# define ST_NODEV 0
183#endif
184#ifndef ST_NOEXEC
185# define ST_NOEXEC 0
186#endif
187#ifndef ST_SYNCHRONOUS
188# define ST_SYNCHRONOUS 0
189#endif
190#ifndef ST_MANDLOCK
191# define ST_MANDLOCK 0
192#endif
193#ifndef ST_WRITE
194# define ST_WRITE 0
195#endif
196#ifndef ST_APPEND
197# define ST_APPEND 0
198#endif
199#ifndef ST_IMMUTABLE
200# define ST_IMMUTABLE 0
201#endif
202#ifndef ST_NOATIME
203# define ST_NOATIME 0
204#endif
205#ifndef ST_NODIRATIME
206# define ST_NODIRATIME 0
207#endif
208#ifndef ST_RELATIME
209# define ST_RELATIME 0
210#endif
211
212#ifndef MAP_ANONYMOUS
213# ifdef MAP_ANON
214# define MAP_ANONYMOUS MAP_ANON
215# else
216# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
217# endif
218#endif
219#ifndef MAP_HUGETLB
220# define MAP_HUGETLB 0
221#endif
222#ifndef MAP_LOCKED
223# define MAP_LOCKED 0
224#endif
225#ifndef MAP_NORESERVE
226# define MAP_NORESERVE 0
227#endif
228#ifndef MAP_POPULATE
229# define MAP_POPULATE 0
230#endif
231#ifndef MAP_NONBLOCK
232# define MAP_NONBLOCK 0
233#endif
234
235#ifndef PAGESIZE
236# define PAGESIZE sysconf (_SC_PAGESIZE)
237#endif
238
114static int req_invoke (eio_req *req); 239static int req_invoke (eio_req *req);
115#define EIO_FINISH(req) req_invoke (req) 240#define EIO_FINISH(req) req_invoke (req)
116static void req_destroy (eio_req *grp); 241static void req_destroy (eio_req *grp);
117#define EIO_DESTROY(req) req_destroy (req) 242#define EIO_DESTROY(req) req_destroy (req)
118 243
… …
127 252
128static SV *on_next_submit; 253static SV *on_next_submit;
129static int next_pri = EIO_PRI_DEFAULT; 254static int next_pri = EIO_PRI_DEFAULT;
130static int max_outstanding; 255static int max_outstanding;
131 256
132static int respipe_osf [2], respipe [2] = { -1, -1 }; 257static s_epipe respipe;
133 258
134static void req_destroy (aio_req req); 259static void req_destroy (aio_req req);
135static void req_cancel (aio_req req); 260static void req_cancel (aio_req req);
136 261
137static void want_poll (void) 262static void want_poll (void)
138{ 263{
139 /* write a dummy byte to the pipe so fh becomes ready */ 264 /* write a dummy byte to the pipe so fh becomes ready */
140 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1); 265 s_epipe_signal (&respipe);
141} 266}
142 267
143static void done_poll (void) 268static void done_poll (void)
144{ 269{
145 /* read any signals sent by the worker threads */ 270 /* read any signals sent by the worker threads */
146 char buf [4]; 271 s_epipe_drain (&respipe);
147 while (respipe_read (respipe [0], buf, 4) == 4)
148 ;
149} 272}
150 273
151/* must be called at most once */ 274/* must be called at most once */
152static SV *req_sv (aio_req req, const char *klass) 275static SV *req_sv (aio_req req, HV *stash)
153{ 276{
154 if (!req->self) 277 if (!req->self)
155 { 278 {
156 req->self = (SV *)newHV (); 279 req->self = (SV *)newHV ();
157 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 280 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
158 } 281 }
159 282
160 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 283 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
161} 284}
162 285
163static aio_req SvAIO_REQ (SV *sv) 286static aio_req SvAIO_REQ (SV *sv)
164{ 287{
165 MAGIC *mg; 288 MAGIC *mg;
166 289
167 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 290 if (!SvROK (sv)
291 || (SvSTASH (SvRV (sv)) != aio_grp_stash
292 && SvSTASH (SvRV (sv)) != aio_req_stash
293 && !sv_derived_from (sv, "IO::AIO::REQ")))
168 croak ("object of class " AIO_REQ_KLASS " expected"); 294 croak ("object of class IO::AIO::REQ expected");
169 295
170 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 296 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
171 297
172 return mg ? (aio_req)mg->mg_ptr : 0; 298 return mg ? (aio_req)mg->mg_ptr : 0;
173} 299}
… …
179 dSP; 305 dSP;
180 306
181 ENTER; 307 ENTER;
182 SAVETMPS; 308 SAVETMPS;
183 PUSHMARK (SP); 309 PUSHMARK (SP);
184 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 310 XPUSHs (req_sv (grp, aio_grp_stash));
185 PUTBACK; 311 PUTBACK;
186 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 312 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
187 SPAGAIN; 313 SPAGAIN;
188 FREETMPS; 314 FREETMPS;
189 LEAVE; 315 LEAVE;
… …
207 } 333 }
208} 334}
209 335
210static int req_invoke (eio_req *req) 336static int req_invoke (eio_req *req)
211{ 337{
212 dSP;
213
214 if (req->flags & FLAG_SV2_RO_OFF) 338 if (req->flags & FLAG_SV2_RO_OFF)
215 SvREADONLY_off (req->sv2); 339 SvREADONLY_off (req->sv2);
216 340
217 if (!EIO_CANCELLED (req) && req->callback) 341 if (!EIO_CANCELLED (req) && req->callback)
218 { 342 {
343 dSP;
344 static SV *sv_result_cache; /* caches the result integer SV */
345 SV *sv_result;
346
219 ENTER; 347 ENTER;
220 SAVETMPS; 348 SAVETMPS;
221 PUSHMARK (SP); 349 PUSHMARK (SP);
222 EXTEND (SP, 1); 350 EXTEND (SP, 1);
351
352 /* do not recreate the result IV from scratch each time */
353 if (expect_true (sv_result_cache))
354 {
355 sv_result = sv_result_cache; sv_result_cache = 0;
356 SvIV_set (sv_result, req->result);
357 }
358 else
359 {
360 sv_result = newSViv (req->result);
361 SvREADONLY_on (sv_result);
362 }
223 363
224 switch (req->type) 364 switch (req->type)
225 { 365 {
226 case EIO_READDIR: 366 case EIO_READDIR:
227 { 367 {
228 SV *rv = &PL_sv_undef; 368 SV *rv = &PL_sv_undef;
229 369
230 if (req->result >= 0) 370 if (req->result >= 0)
231 { 371 {
232 int i; 372 int i;
233 char *buf = req->ptr2; 373 char *names = (char *)req->ptr2;
374 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
234 AV *av = newAV (); 375 AV *av = newAV ();
235 376
236 av_extend (av, req->result - 1); 377 av_extend (av, req->result - 1);
237 378
238 for (i = 0; i < req->result; ++i) 379 for (i = 0; i < req->result; ++i)
239 { 380 {
240 if (req->int1 & EIO_READDIR_DENTS) 381 if (req->int1 & EIO_READDIR_DENTS)
241 { 382 {
242 eio_dirent *ent = (eio_dirent *)buf;
243 SV *namesv = newSVpvn (ent->name, ent->namelen); 383 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
244 384
245 if (req->int1 & EIO_READDIR_CUSTOM2) 385 if (req->int1 & EIO_READDIR_CUSTOM2)
246 { 386 {
247 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */ 387 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
248 AV *avent = newAV (); 388 AV *avent = newAV ();
… …
262 av_store (av, i, newRV_noinc ((SV *)avent)); 402 av_store (av, i, newRV_noinc ((SV *)avent));
263 } 403 }
264 else 404 else
265 av_store (av, i, namesv); 405 av_store (av, i, namesv);
266 406
267 buf += sizeof (eio_dirent); 407 ++ent;
268 } 408 }
269 else 409 else
270 { 410 {
271 SV *name = newSVpv (buf, 0); 411 SV *name = newSVpv (names, 0);
272 av_store (av, i, name); 412 av_store (av, i, name);
273 buf += SvCUR (name) + 1; 413 names += SvCUR (name) + 1;
274 } 414 }
275 } 415 }
276 416
277 rv = sv_2mortal (newRV_noinc ((SV *)av)); 417 rv = sv_2mortal (newRV_noinc ((SV *)av));
278 } 418 }
… …
294 GV *gv = (GV *)sv_newmortal (); 434 GV *gv = (GV *)sv_newmortal ();
295 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 435 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
296 char sym [64]; 436 char sym [64];
297 int symlen; 437 int symlen;
298 438
299 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 439 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
300 gv_init (gv, stash, sym, symlen, 0); 440 gv_init (gv, aio_stash, sym, symlen, 0);
301 441
302 symlen = snprintf ( 442 symlen = snprintf (
303 sym, 443 sym,
304 sizeof (sym), 444 sizeof (sym),
305 "%s&=%d", 445 "%s&=%d",
306 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", 446 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
307 req->result 447 (int)req->result
308 ); 448 );
309 449
310 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 450 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
311 fh = (SV *)gv; 451 fh = (SV *)gv;
312 } 452 }
313 453
314 PUSHs (fh); 454 PUSHs (fh);
315 } 455 }
456 break;
457
458 case EIO_STATVFS:
459 case EIO_FSTATVFS:
460 {
461 SV *rv = &PL_sv_undef;
462
463 if (req->result >= 0)
464 {
465 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
466 HV *hv = newHV ();
467
468 rv = sv_2mortal (newRV_noinc ((SV *)hv));
469
470 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
471 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
472 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
473 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
474 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
475 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
476 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
477 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
478 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
479 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
480 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
481 }
482
483 PUSHs (rv);
484 }
485
316 break; 486 break;
317 487
318 case EIO_GROUP: 488 case EIO_GROUP:
319 req->int1 = 2; /* mark group as finished */ 489 req->int1 = 2; /* mark group as finished */
320 490
… …
342 case EIO_LSTAT: 512 case EIO_LSTAT:
343 case EIO_FSTAT: 513 case EIO_FSTAT:
344 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 514 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
345 PL_laststatval = req->result; 515 PL_laststatval = req->result;
346 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 516 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
347 PUSHs (sv_2mortal (newSViv (req->result))); 517 PUSHs (sv_result);
348 break; 518 break;
349 519
350 case EIO_READ: 520 case EIO_READ:
351 { 521 {
352 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 522 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
353 *SvEND (req->sv2) = 0; 523 *SvEND (req->sv2) = 0;
354 SvPOK_only (req->sv2); 524 SvPOK_only (req->sv2);
355 SvSETMAGIC (req->sv2); 525 SvSETMAGIC (req->sv2);
356 PUSHs (sv_2mortal (newSViv (req->result))); 526 PUSHs (sv_result);
357 } 527 }
358 break; 528 break;
359 529
360 case EIO_DUP2: 530 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
361 if (req->result > 0) 531 if (req->result > 0)
362 req->result = 0; 532 SvIV_set (sv_result, 0);
363 /* FALLTHROUGH */ 533 /* FALLTHROUGH */
364 534
365 default: 535 default:
366 PUSHs (sv_2mortal (newSViv (req->result))); 536 PUSHs (sv_result);
367 break; 537 break;
368 } 538 }
369 539
370 errno = req->errorno; 540 errno = req->errorno;
371 541
372 PUTBACK; 542 PUTBACK;
373 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 543 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
374 SPAGAIN; 544 SPAGAIN;
545
546 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
547 SvREFCNT_dec (sv_result);
548 else
549 sv_result_cache = sv_result;
375 550
376 FREETMPS; 551 FREETMPS;
377 LEAVE; 552 LEAVE;
378 553
379 PUTBACK; 554 PUTBACK;
… …
408 grp->sv2 = 0; 583 grp->sv2 = 0;
409 584
410 eio_grp_cancel (grp); 585 eio_grp_cancel (grp);
411} 586}
412 587
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 588static void
420create_respipe (void) 589create_respipe (void)
421{ 590{
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)) 591 if (s_epipe_renew (&respipe))
431#endif
432 croak ("unable to initialize result pipe"); 592 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} 593}
456 594
457static void poll_wait (void) 595static void poll_wait (void)
458{ 596{
459 fd_set rfd;
460
461 while (eio_nreqs ()) 597 while (eio_nreqs ())
462 { 598 {
463 int size; 599 int size;
464 600
465 X_LOCK (reslock); 601 X_LOCK (reslock);
… …
469 if (size) 605 if (size)
470 return; 606 return;
471 607
472 etp_maybe_start_thread (); 608 etp_maybe_start_thread ();
473 609
474 FD_ZERO (&rfd); 610 s_epipe_wait (&respipe);
475 FD_SET (respipe [0], &rfd);
476
477 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
478 } 611 }
479} 612}
480 613
481static int poll_cb (void) 614static int poll_cb (void)
482{ 615{
… …
497static void atfork_child (void) 630static void atfork_child (void)
498{ 631{
499 create_respipe (); 632 create_respipe ();
500} 633}
501 634
635/*****************************************************************************/
636
637#if !_POSIX_MAPPED_FILES
638# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
639# define munmap(addr,length) (errno = ENOSYS, -1)
640# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
641# define PROT_NONE 0
642# define PROT_WRITE 0
643# define MAP_PRIVATE 0
644# define MAP_SHARED 0
645# define MAP_FIXED 0
646#endif
647
648#define MMAP_MAGIC PERL_MAGIC_ext
649
650static int
651mmap_free (pTHX_ SV *sv, MAGIC *mg)
652{
653 int old_errno = errno;
654 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
655 errno = old_errno;
656
657 mg->mg_obj = 0; /* just in case */
658
659 SvREADONLY_off (sv);
660
661 if (SvPVX (sv) != mg->mg_ptr)
662 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
663
664 SvCUR_set (sv, 0);
665 SvPVX (sv) = 0;
666 SvOK_off (sv);
667
668 return 0;
669}
670
671static MGVTBL mmap_vtbl = {
672 0, 0, 0, 0, mmap_free
673};
674
675/*****************************************************************************/
676
502static SV * 677static SV *
503get_cb (SV *cb_sv) 678get_cb (SV *cb_sv)
504{ 679{
505 HV *st; 680 SvGETMAGIC (cb_sv);
506 GV *gvp; 681 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} 682}
519 683
520#define dREQ \ 684#define dREQ \
521 SV *cb_cv; \ 685 SV *cb_cv; \
522 aio_req req; \ 686 aio_req req; \
… …
536 PUTBACK; \ 700 PUTBACK; \
537 req_submit (req); \ 701 req_submit (req); \
538 SPAGAIN; \ 702 SPAGAIN; \
539 \ 703 \
540 if (GIMME_V != G_VOID) \ 704 if (GIMME_V != G_VOID) \
541 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 705 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}
553 706
554MODULE = IO::AIO PACKAGE = IO::AIO 707MODULE = IO::AIO PACKAGE = IO::AIO
555 708
556PROTOTYPES: ENABLE 709PROTOTYPES: ENABLE
557 710
558BOOT: 711BOOT:
559{ 712{
560 stash = gv_stashpv ("IO::AIO", 1);
561
562 static const struct { 713 static const struct {
563 const char *name; 714 const char *name;
564 IV iv; 715 IV iv;
565 } *civ, const_iv[] = { 716 } *civ, const_iv[] = {
566# define const_iv(name, value) { # name, (IV) value }, 717# define const_niv(name, value) { # name, (IV) value },
718# define const_iv(name) { # name, (IV) name },
567# define const_eio(name) { # name, (IV) EIO_ ## name }, 719# define const_eio(name) { # name, (IV) EIO_ ## name },
568 const_iv (EXDEV , EXDEV) 720 const_iv (EXDEV)
569 const_iv (ENOSYS , ENOSYS) 721 const_iv (ENOSYS)
570 const_iv (O_RDONLY, O_RDONLY) 722 const_iv (O_RDONLY)
571 const_iv (O_WRONLY, O_WRONLY) 723 const_iv (O_WRONLY)
724 const_iv (O_RDWR)
572 const_iv (O_CREAT , O_CREAT) 725 const_iv (O_CREAT)
573 const_iv (O_TRUNC , O_TRUNC) 726 const_iv (O_TRUNC)
727 const_iv (O_EXCL)
728 const_iv (O_APPEND)
574#ifndef _WIN32 729#ifndef _WIN32
575 const_iv (S_IFIFO , S_IFIFO) 730 const_iv (S_IFIFO)
576#endif 731#endif
732 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
733 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
734 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
735 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
736 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
737 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
738
739 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
740 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
741 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
742 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
743 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
744
745 const_iv (ST_RDONLY)
746 const_iv (ST_NOSUID)
747 const_iv (ST_NODEV)
748 const_iv (ST_NOEXEC)
749 const_iv (ST_SYNCHRONOUS)
750 const_iv (ST_MANDLOCK)
751 const_iv (ST_WRITE)
752 const_iv (ST_APPEND)
753 const_iv (ST_IMMUTABLE)
754 const_iv (ST_NOATIME)
755 const_iv (ST_NODIRATIME)
756 const_iv (ST_RELATIME)
757
758 const_iv (PROT_NONE)
759 const_iv (PROT_EXEC)
760 const_iv (PROT_READ)
761 const_iv (PROT_WRITE)
762
763 /*const_iv (MAP_FIXED)*/
764 const_iv (MAP_PRIVATE)
765 const_iv (MAP_SHARED)
766 const_iv (MAP_ANONYMOUS)
767
768 /* linuxish */
769 const_iv (MAP_HUGETLB)
770 const_iv (MAP_LOCKED)
771 const_iv (MAP_NORESERVE)
772 const_iv (MAP_POPULATE)
773 const_iv (MAP_NONBLOCK)
774
775 const_eio (MCL_FUTURE)
776 const_eio (MCL_CURRENT)
777
778 const_eio (MS_ASYNC)
779 const_eio (MS_INVALIDATE)
780 const_eio (MS_SYNC)
781
782 const_eio (MT_MODIFY)
783
577 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE) 784 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
578 const_eio (SYNC_FILE_RANGE_WRITE) 785 const_eio (SYNC_FILE_RANGE_WRITE)
579 const_eio (SYNC_FILE_RANGE_WAIT_AFTER) 786 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
580 787
581 const_eio (READDIR_DENTS) 788 const_eio (READDIR_DENTS)
… …
592 const_eio (DT_LNK) 799 const_eio (DT_LNK)
593 const_eio (DT_SOCK) 800 const_eio (DT_SOCK)
594 const_eio (DT_WHT) 801 const_eio (DT_WHT)
595 }; 802 };
596 803
804 aio_stash = gv_stashpv ("IO::AIO" , 1);
805 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
806 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
807
597 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) 808 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
598 newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv)); 809 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
810
811 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
599 812
600 create_respipe (); 813 create_respipe ();
601 814
602 if (eio_init (want_poll, done_poll) < 0) 815 if (eio_init (want_poll, done_poll) < 0)
603 croak ("IO::AIO: unable to initialise eio library"); 816 croak ("IO::AIO: unable to initialise eio library");
… …
642 CODE: 855 CODE:
643 max_outstanding = maxreqs; 856 max_outstanding = maxreqs;
644 857
645void 858void
646aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 859aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
647 PROTOTYPE: $$$;$
648 PPCODE: 860 PPCODE:
649{ 861{
650 dREQ; 862 dREQ;
651 863
652 req->type = EIO_OPEN; 864 req->type = EIO_OPEN;
… …
658 REQ_SEND; 870 REQ_SEND;
659} 871}
660 872
661void 873void
662aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 874aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
663 PROTOTYPE: $;$
664 ALIAS: 875 ALIAS:
665 aio_fsync = EIO_FSYNC 876 aio_fsync = EIO_FSYNC
666 aio_fdatasync = EIO_FDATASYNC 877 aio_fdatasync = EIO_FDATASYNC
667 PPCODE: 878 PPCODE:
668{ 879{
669 int fd = extract_fd (fh, 0); 880 int fd = s_fileno_croak (fh, 0);
670 dREQ; 881 dREQ;
671 882
672 req->type = ix; 883 req->type = ix;
673 req->sv1 = newSVsv (fh); 884 req->sv1 = newSVsv (fh);
674 req->int1 = fd; 885 req->int1 = fd;
675 886
676 REQ_SEND (req); 887 REQ_SEND (req);
677} 888}
678 889
679void 890void
680aio_sync_file_range (SV *fh, SV *offset, SV *nbytes, IV flags, SV *callback=&PL_sv_undef) 891aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
681 PROTOTYPE: $$$$;$
682 PPCODE: 892 PPCODE:
683{ 893{
684 int fd = extract_fd (fh, 0); 894 int fd = s_fileno_croak (fh, 0);
685 dREQ; 895 dREQ;
686 896
687 req->type = EIO_SYNC_FILE_RANGE; 897 req->type = EIO_SYNC_FILE_RANGE;
688 req->sv1 = newSVsv (fh); 898 req->sv1 = newSVsv (fh);
689 req->int1 = fd; 899 req->int1 = fd;
690 req->offs = SvVAL64 (offset); 900 req->offs = offset;
691 req->size = SvVAL64 (nbytes); 901 req->size = nbytes;
692 req->int2 = flags; 902 req->int2 = flags;
693 903
694 REQ_SEND (req); 904 REQ_SEND (req);
695} 905}
696 906
697void 907void
698aio_close (SV *fh, SV *callback=&PL_sv_undef) 908aio_close (SV *fh, SV *callback=&PL_sv_undef)
699 PROTOTYPE: $;$
700 PPCODE: 909 PPCODE:
701{ 910{
702 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 911 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
703 int fd = extract_fd (fh, 0); 912 int fd = s_fileno_croak (fh, 0);
704 dREQ; 913 dREQ;
705 914
706 if (close_pipe < 0) 915 if (close_pipe < 0)
707 { 916 {
708 int pipefd [2]; 917 int pipefd [2];
… …
726void 935void
727aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 936aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
728 ALIAS: 937 ALIAS:
729 aio_read = EIO_READ 938 aio_read = EIO_READ
730 aio_write = EIO_WRITE 939 aio_write = EIO_WRITE
731 PROTOTYPE: $$$$$;$
732 PPCODE: 940 PPCODE:
733{ 941{
734 STRLEN svlen; 942 STRLEN svlen;
735 int fd = extract_fd (fh, ix == EIO_WRITE); 943 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
736 char *svptr = SvPVbyte (data, svlen); 944 char *svptr = SvPVbyte (data, svlen);
737 UV len = SvUV (length); 945 UV len = SvUV (length);
738 946
739 if (dataoffset < 0) 947 if (dataoffset < 0)
740 dataoffset += svlen; 948 dataoffset += svlen;
… …
777 } 985 }
778} 986}
779 987
780void 988void
781aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 989aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
782 PROTOTYPE: $$;$
783 PPCODE: 990 PPCODE:
784{ 991{
785 SV *data; 992 SV *data;
786 dREQ; 993 dREQ;
787 994
… …
791 998
792 REQ_SEND; 999 REQ_SEND;
793} 1000}
794 1001
795void 1002void
796aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1003aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
797 PROTOTYPE: $$$$;$
798 PPCODE: 1004 PPCODE:
799{ 1005{
800 int ifd = extract_fd (in_fh , 0); 1006 int ifd = s_fileno_croak (in_fh , 0);
801 int ofd = extract_fd (out_fh, 0); 1007 int ofd = s_fileno_croak (out_fh, 1);
802 dREQ; 1008 dREQ;
803 1009
804 req->type = EIO_SENDFILE; 1010 req->type = EIO_SENDFILE;
805 req->sv1 = newSVsv (out_fh); 1011 req->sv1 = newSVsv (out_fh);
806 req->int1 = ofd; 1012 req->int1 = ofd;
807 req->sv2 = newSVsv (in_fh); 1013 req->sv2 = newSVsv (in_fh);
808 req->int2 = ifd; 1014 req->int2 = ifd;
809 req->offs = SvVAL64 (in_offset); 1015 req->offs = in_offset;
810 req->size = length; 1016 req->size = length;
811 1017
812 REQ_SEND; 1018 REQ_SEND;
813} 1019}
814 1020
815void 1021void
816aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1022aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
817 PROTOTYPE: $$$;$
818 PPCODE: 1023 PPCODE:
819{ 1024{
820 int fd = extract_fd (fh, 0); 1025 int fd = s_fileno_croak (fh, 0);
821 dREQ; 1026 dREQ;
822 1027
823 req->type = EIO_READAHEAD; 1028 req->type = EIO_READAHEAD;
824 req->sv1 = newSVsv (fh); 1029 req->sv1 = newSVsv (fh);
825 req->int1 = fd; 1030 req->int1 = fd;
826 req->offs = SvVAL64 (offset); 1031 req->offs = offset;
827 req->size = length; 1032 req->size = length;
828 1033
829 REQ_SEND; 1034 REQ_SEND;
830} 1035}
831 1036
832void 1037void
833aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1038aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
834 ALIAS: 1039 ALIAS:
835 aio_stat = EIO_STAT 1040 aio_stat = EIO_STAT
836 aio_lstat = EIO_LSTAT 1041 aio_lstat = EIO_LSTAT
1042 aio_statvfs = EIO_STATVFS
837 PPCODE: 1043 PPCODE:
838{ 1044{
839 dREQ; 1045 dREQ;
840 1046
841 req->sv1 = newSVsv (fh_or_path); 1047 req->sv1 = newSVsv (fh_or_path);
… …
845 req->type = ix; 1051 req->type = ix;
846 req->ptr1 = SvPVbyte_nolen (req->sv1); 1052 req->ptr1 = SvPVbyte_nolen (req->sv1);
847 } 1053 }
848 else 1054 else
849 { 1055 {
850 req->type = EIO_FSTAT; 1056 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
851 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1057 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
852 } 1058 }
853 1059
854 REQ_SEND; 1060 REQ_SEND;
855} 1061}
… …
1018 1224
1019 REQ_SEND; 1225 REQ_SEND;
1020} 1226}
1021 1227
1022void 1228void
1229aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1230 ALIAS:
1231 aio_mtouch = EIO_MTOUCH
1232 aio_msync = EIO_MSYNC
1233 PPCODE:
1234{
1235 STRLEN svlen;
1236 char *svptr = SvPVbyte (data, svlen);
1237 UV len = SvUV (length);
1238
1239 if (offset < 0)
1240 offset += svlen;
1241
1242 if (offset < 0 || offset > svlen)
1243 croak ("offset outside of scalar");
1244
1245 if (!SvOK (length) || len + offset > svlen)
1246 len = svlen - offset;
1247
1248 {
1249 dREQ;
1250
1251 req->type = ix;
1252 req->sv2 = SvREFCNT_inc (data);
1253 req->ptr2 = (char *)svptr + offset;
1254 req->size = len;
1255 req->int1 = flags;
1256
1257 REQ_SEND;
1258 }
1259}
1260
1261void
1262aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1263 PPCODE:
1264{
1265 STRLEN svlen;
1266 char *svptr = SvPVbyte (data, svlen);
1267 UV len = SvUV (length);
1268
1269 if (offset < 0)
1270 offset += svlen;
1271
1272 if (offset < 0 || offset > svlen)
1273 croak ("offset outside of scalar");
1274
1275 if (!SvOK (length) || len + offset > svlen)
1276 len = svlen - offset;
1277
1278 {
1279 dREQ;
1280
1281 req->type = EIO_MLOCK;
1282 req->sv2 = SvREFCNT_inc (data);
1283 req->ptr2 = (char *)svptr + offset;
1284 req->size = len;
1285
1286 REQ_SEND;
1287 }
1288}
1289
1290void
1291aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1292 PPCODE:
1293{
1294 dREQ;
1295
1296 req->type = EIO_MLOCKALL;
1297 req->int1 = flags;
1298
1299 REQ_SEND;
1300}
1301
1302void
1023aio_busy (double delay, SV *callback=&PL_sv_undef) 1303aio_busy (double delay, SV *callback=&PL_sv_undef)
1024 PPCODE: 1304 PPCODE:
1025{ 1305{
1026 dREQ; 1306 dREQ;
1027 1307
… …
1031 REQ_SEND; 1311 REQ_SEND;
1032} 1312}
1033 1313
1034void 1314void
1035aio_group (SV *callback=&PL_sv_undef) 1315aio_group (SV *callback=&PL_sv_undef)
1036 PROTOTYPE: ;$
1037 PPCODE: 1316 PPCODE:
1038{ 1317{
1039 dREQ; 1318 dREQ;
1040 1319
1041 req->type = EIO_GROUP; 1320 req->type = EIO_GROUP;
1042 1321
1043 req_submit (req); 1322 req_submit (req);
1044 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1323 XPUSHs (req_sv (req, aio_grp_stash));
1045} 1324}
1046 1325
1047void 1326void
1048aio_nop (SV *callback=&PL_sv_undef) 1327aio_nop (SV *callback=&PL_sv_undef)
1049 ALIAS: 1328 ALIAS:
… …
1058 REQ_SEND; 1337 REQ_SEND;
1059} 1338}
1060 1339
1061int 1340int
1062aioreq_pri (int pri = 0) 1341aioreq_pri (int pri = 0)
1063 PROTOTYPE: ;$
1064 CODE: 1342 CODE:
1065 RETVAL = next_pri; 1343 RETVAL = next_pri;
1066 if (items > 0) 1344 if (items > 0)
1067 { 1345 {
1068 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1346 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
… …
1080 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1358 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1081 next_pri = nice; 1359 next_pri = nice;
1082 1360
1083void 1361void
1084flush () 1362flush ()
1085 PROTOTYPE:
1086 CODE: 1363 CODE:
1087 while (eio_nreqs ()) 1364 while (eio_nreqs ())
1088 { 1365 {
1089 poll_wait (); 1366 poll_wait ();
1090 poll_cb (); 1367 poll_cb ();
1091 } 1368 }
1092 1369
1093int 1370int
1094poll() 1371poll ()
1095 PROTOTYPE:
1096 CODE: 1372 CODE:
1097 poll_wait (); 1373 poll_wait ();
1098 RETVAL = poll_cb (); 1374 RETVAL = poll_cb ();
1099 OUTPUT: 1375 OUTPUT:
1100 RETVAL 1376 RETVAL
1101 1377
1102int 1378int
1103poll_fileno() 1379poll_fileno ()
1104 PROTOTYPE:
1105 CODE: 1380 CODE:
1106 RETVAL = respipe [0]; 1381 RETVAL = s_epipe_fd (&respipe);
1107 OUTPUT: 1382 OUTPUT:
1108 RETVAL 1383 RETVAL
1109 1384
1110int 1385int
1111poll_cb(...) 1386poll_cb (...)
1112 PROTOTYPE: 1387 PROTOTYPE:
1113 CODE: 1388 CODE:
1114 RETVAL = poll_cb (); 1389 RETVAL = poll_cb ();
1115 OUTPUT: 1390 OUTPUT:
1116 RETVAL 1391 RETVAL
1117 1392
1118void 1393void
1119poll_wait() 1394poll_wait ()
1120 PROTOTYPE:
1121 CODE: 1395 CODE:
1122 poll_wait (); 1396 poll_wait ();
1123 1397
1124int 1398int
1125nreqs() 1399nreqs ()
1126 PROTOTYPE:
1127 CODE: 1400 CODE:
1128 RETVAL = eio_nreqs (); 1401 RETVAL = eio_nreqs ();
1129 OUTPUT: 1402 OUTPUT:
1130 RETVAL 1403 RETVAL
1131 1404
1132int 1405int
1133nready() 1406nready ()
1134 PROTOTYPE:
1135 CODE: 1407 CODE:
1136 RETVAL = eio_nready (); 1408 RETVAL = eio_nready ();
1137 OUTPUT: 1409 OUTPUT:
1138 RETVAL 1410 RETVAL
1139 1411
1140int 1412int
1141npending() 1413npending ()
1142 PROTOTYPE:
1143 CODE: 1414 CODE:
1144 RETVAL = eio_npending (); 1415 RETVAL = eio_npending ();
1145 OUTPUT: 1416 OUTPUT:
1146 RETVAL 1417 RETVAL
1147 1418
1148int 1419int
1149nthreads() 1420nthreads ()
1150 PROTOTYPE:
1151 CODE: 1421 CODE:
1152 RETVAL = eio_nthreads (); 1422 RETVAL = eio_nthreads ();
1153 OUTPUT: 1423 OUTPUT:
1154 RETVAL 1424 RETVAL
1155 1425
1426int
1427fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1428 CODE:
1429 RETVAL = posix_fadvise (fh, offset, length, advice);
1430 OUTPUT:
1431 RETVAL
1432
1433ssize_t
1434sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1435 CODE:
1436 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1437 OUTPUT:
1438 RETVAL
1439
1440void
1441mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1442 PPCODE:
1443 sv_unmagic (scalar, MMAP_MAGIC);
1444{
1445 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1446 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1447 if (addr == (void *)-1)
1448 XSRETURN_NO;
1449
1450 sv_force_normal (scalar);
1451
1452 /* we store the length in mg_obj, as namlen is I32 :/ */
1453 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1454 ->mg_obj = (SV *)length;
1455
1456 SvUPGRADE (scalar, SVt_PV); /* nop... */
1457
1458 if (!(prot & PROT_WRITE))
1459 SvREADONLY_on (scalar);
1460
1461 if (SvLEN (scalar))
1462 Safefree (SvPVX (scalar));
1463
1464 SvPVX (scalar) = (char *)addr;
1465 SvCUR_set (scalar, length);
1466 SvLEN_set (scalar, 0);
1467 SvPOK_only (scalar);
1468
1469 XSRETURN_YES;
1470}
1471
1472void
1473munmap (SV *scalar)
1474 CODE:
1475 sv_unmagic (scalar, MMAP_MAGIC);
1476
1477int
1478madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1479 ALIAS:
1480 mprotect = 1
1481 CODE:
1482{
1483 STRLEN svlen;
1484 void *addr = SvPVbyte (scalar, svlen);
1485 size_t len = SvUV (length);
1486
1487 if (offset < 0)
1488 offset += svlen;
1489
1490 if (offset < 0 || offset > svlen)
1491 croak ("offset outside of scalar");
1492
1493 if (!SvOK (length) || len + offset > svlen)
1494 len = svlen - offset;
1495
1496 addr = (void *)(((intptr_t)addr) + offset);
1497 eio_page_align (&addr, &len);
1498
1499 switch (ix)
1500 {
1501 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1502 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1503 }
1504}
1505 OUTPUT:
1506 RETVAL
1507
1508int
1509munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1510 CODE:
1511{
1512 STRLEN svlen;
1513 void *addr = SvPVbyte (scalar, svlen);
1514 size_t len = SvUV (length);
1515
1516 if (offset < 0)
1517 offset += svlen;
1518
1519 if (offset < 0 || offset > svlen)
1520 croak ("offset outside of scalar");
1521
1522 if (!SvOK (length) || len + offset > svlen)
1523 len = svlen - offset;
1524
1525 addr = (void *)(((intptr_t)addr) + offset);
1526 eio_page_align (&addr, &len);
1527#if _POSIX_MEMLOCK
1528 RETVAL = munlock (addr, len);
1529#else
1530 RETVAL = ((errno = ENOSYS), -1);
1531#endif
1532}
1533 OUTPUT:
1534 RETVAL
1535
1536int
1537munlockall ()
1538 CODE:
1539#if _POSIX_MEMLOCK
1540 munlockall ();
1541#else
1542 RETVAL = -1;
1543 errno = ENOSYS;
1544#endif
1545 OUTPUT:
1546 RETVAL
1547
1156void _on_next_submit (SV *cb) 1548void _on_next_submit (SV *cb)
1157 CODE: 1549 CODE:
1158 SvREFCNT_dec (on_next_submit); 1550 SvREFCNT_dec (on_next_submit);
1159 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; 1551 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1160 1552
… …
1174 if (GIMME_V != G_VOID) 1566 if (GIMME_V != G_VOID)
1175 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef); 1567 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1176 1568
1177 if (items > 1) 1569 if (items > 1)
1178 { 1570 {
1179 SV *cb_cv = get_cb (callback); 1571 SV *cb_cv =get_cb (callback);
1180 1572
1181 SvREFCNT_dec (req->callback); 1573 SvREFCNT_dec (req->callback);
1182 req->callback = SvREFCNT_inc (cb_cv); 1574 req->callback = SvREFCNT_inc (cb_cv);
1183 } 1575 }
1184} 1576}

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