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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.125 by root, Thu Jun 19 09:05:43 2008 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
85static HV *stash; 96/*****************************************************************************/
97
98#if __GNUC__ >= 3
99# define expect(expr,value) __builtin_expect ((expr),(value))
100#else
101# define expect(expr,value) (expr)
102#endif
103
104#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1)
106
107/*****************************************************************************/
108
86typedef 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 */
87 112
88#define AIO_REQ_KLASS "IO::AIO::REQ" 113static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
89#define AIO_GRP_KLASS "IO::AIO::GRP"
90 114
91#define EIO_REQ_MEMBERS \ 115#define EIO_REQ_MEMBERS \
92 SV *callback; \ 116 SV *callback; \
93 SV *sv1, *sv2; \ 117 SV *sv1, *sv2; \
94 STRLEN stroffset; \ 118 STRLEN stroffset; \
95 SV *self; 119 SV *self;
96 120
97#define EIO_NO_WRAPPERS 1 121#define EIO_NO_WRAPPERS 1
98 122
123#include "libeio/config.h"
99#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
100 239
101static int req_invoke (eio_req *req); 240static int req_invoke (eio_req *req);
102#define EIO_FINISH(req) req_invoke (req) 241#define EIO_FINISH(req) req_invoke (req)
103static void aio_grp_feed (eio_req *grp);
104#define EIO_FEED(req) aio_grp_feed (req)
105static void req_destroy (eio_req *grp); 242static void req_destroy (eio_req *grp);
106#define EIO_DESTROY(req) req_destroy (req) 243#define EIO_DESTROY(req) req_destroy (req)
107 244
108enum { 245enum {
109 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ 246 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
116 253
117static SV *on_next_submit; 254static SV *on_next_submit;
118static int next_pri = EIO_PRI_DEFAULT; 255static int next_pri = EIO_PRI_DEFAULT;
119static int max_outstanding; 256static int max_outstanding;
120 257
121static int respipe_osf [2], respipe [2] = { -1, -1 }; 258static s_epipe respipe;
122 259
123static void req_destroy (aio_req req); 260static void req_destroy (aio_req req);
124static void req_cancel (aio_req req); 261static void req_cancel (aio_req req);
125 262
126static void want_poll (void) 263static void want_poll (void)
127{ 264{
128 /* write a dummy byte to the pipe so fh becomes ready */ 265 /* write a dummy byte to the pipe so fh becomes ready */
129 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1); 266 s_epipe_signal (&respipe);
130} 267}
131 268
132static void done_poll (void) 269static void done_poll (void)
133{ 270{
134 /* read any signals sent by the worker threads */ 271 /* read any signals sent by the worker threads */
135 char buf [4]; 272 s_epipe_drain (&respipe);
136 while (respipe_read (respipe [0], buf, 4) == 4)
137 ;
138} 273}
139 274
140/* must be called at most once */ 275/* must be called at most once */
141static SV *req_sv (aio_req req, const char *klass) 276static SV *req_sv (aio_req req, HV *stash)
142{ 277{
143 if (!req->self) 278 if (!req->self)
144 { 279 {
145 req->self = (SV *)newHV (); 280 req->self = (SV *)newHV ();
146 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 281 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
147 } 282 }
148 283
149 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 284 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
150} 285}
151 286
152static aio_req SvAIO_REQ (SV *sv) 287static aio_req SvAIO_REQ (SV *sv)
153{ 288{
154 MAGIC *mg; 289 MAGIC *mg;
155 290
156 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")))
157 croak ("object of class " AIO_REQ_KLASS " expected"); 295 croak ("object of class IO::AIO::REQ expected");
158 296
159 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 297 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
160 298
161 return mg ? (aio_req)mg->mg_ptr : 0; 299 return mg ? (aio_req)mg->mg_ptr : 0;
162} 300}
168 dSP; 306 dSP;
169 307
170 ENTER; 308 ENTER;
171 SAVETMPS; 309 SAVETMPS;
172 PUSHMARK (SP); 310 PUSHMARK (SP);
173 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 311 XPUSHs (req_sv (grp, aio_grp_stash));
174 PUTBACK; 312 PUTBACK;
175 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 313 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
176 SPAGAIN; 314 SPAGAIN;
177 FREETMPS; 315 FREETMPS;
178 LEAVE; 316 LEAVE;
181 319
182static void req_submit (eio_req *req) 320static void req_submit (eio_req *req)
183{ 321{
184 eio_submit (req); 322 eio_submit (req);
185 323
186 if (on_next_submit) 324 if (expect_false (on_next_submit))
187 { 325 {
188 dSP; 326 dSP;
189 SV *cb = sv_2mortal (on_next_submit); 327 SV *cb = sv_2mortal (on_next_submit);
190 328
191 on_next_submit = 0; 329 on_next_submit = 0;
196 } 334 }
197} 335}
198 336
199static int req_invoke (eio_req *req) 337static int req_invoke (eio_req *req)
200{ 338{
201 dSP;
202
203 if (req->flags & FLAG_SV2_RO_OFF) 339 if (req->flags & FLAG_SV2_RO_OFF)
204 SvREADONLY_off (req->sv2); 340 SvREADONLY_off (req->sv2);
205 341
206 if (!EIO_CANCELLED (req) && SvOK (req->callback)) 342 if (!EIO_CANCELLED (req) && req->callback)
207 { 343 {
344 dSP;
345 static SV *sv_result_cache; /* caches the result integer SV */
346 SV *sv_result;
347
208 ENTER; 348 ENTER;
209 SAVETMPS; 349 SAVETMPS;
210 PUSHMARK (SP); 350 PUSHMARK (SP);
211 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 }
212 365
213 switch (req->type) 366 switch (req->type)
214 { 367 {
215 case EIO_READDIR: 368 case EIO_READDIR:
216 { 369 {
217 SV *rv = &PL_sv_undef; 370 SV *rv = &PL_sv_undef;
218 371
219 if (req->result >= 0) 372 if (req->result >= 0)
220 { 373 {
221 int i; 374 int i;
222 char *buf = req->ptr2; 375 char *names = (char *)req->ptr2;
376 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
223 AV *av = newAV (); 377 AV *av = newAV ();
224 378
225 av_extend (av, req->result - 1); 379 av_extend (av, req->result - 1);
226 380
227 for (i = 0; i < req->result; ++i) 381 for (i = 0; i < req->result; ++i)
228 { 382 {
229 SV *sv = newSVpv (buf, 0); 383 if (req->int1 & EIO_READDIR_DENTS)
384 {
385 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
230 386
387 if (req->int1 & EIO_READDIR_CUSTOM2)
388 {
389 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
390 AV *avent = newAV ();
391
392 av_extend (avent, 2);
393
394 if (!sv_type [ent->type])
395 {
396 sv_type [ent->type] = newSViv (ent->type);
397 SvREADONLY_on (sv_type [ent->type]);
398 }
399
400 av_store (avent, 0, namesv);
401 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
402 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
403
404 av_store (av, i, newRV_noinc ((SV *)avent));
405 }
406 else
231 av_store (av, i, sv); 407 av_store (av, i, namesv);
408
409 ++ent;
410 }
411 else
412 {
413 SV *name = newSVpv (names, 0);
414 av_store (av, i, name);
232 buf += SvCUR (sv) + 1; 415 names += SvCUR (name) + 1;
416 }
233 } 417 }
234 418
235 rv = sv_2mortal (newRV_noinc ((SV *)av)); 419 rv = sv_2mortal (newRV_noinc ((SV *)av));
236 } 420 }
237 421
238 PUSHs (rv); 422 PUSHs (rv);
423
424 if (req->int1 & EIO_READDIR_CUSTOM1)
425 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
239 } 426 }
240 break; 427 break;
241 428
242 case EIO_OPEN: 429 case EIO_OPEN:
243 { 430 {
249 GV *gv = (GV *)sv_newmortal (); 436 GV *gv = (GV *)sv_newmortal ();
250 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 437 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
251 char sym [64]; 438 char sym [64];
252 int symlen; 439 int symlen;
253 440
254 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 441 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
255 gv_init (gv, stash, sym, symlen, 0); 442 gv_init (gv, aio_stash, sym, symlen, 0);
256 443
257 symlen = snprintf ( 444 symlen = snprintf (
258 sym, 445 sym,
259 sizeof (sym), 446 sizeof (sym),
260 "%s&=%d", 447 "%s&=%d",
261 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", 448 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
262 req->result 449 (int)req->result
263 ); 450 );
264 451
265 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 452 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
266 fh = (SV *)gv; 453 fh = (SV *)gv;
267 } 454 }
268 455
269 PUSHs (fh); 456 PUSHs (fh);
270 } 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
271 break; 488 break;
272 489
273 case EIO_GROUP: 490 case EIO_GROUP:
274 req->int1 = 2; /* mark group as finished */ 491 req->int1 = 2; /* mark group as finished */
275 492
297 case EIO_LSTAT: 514 case EIO_LSTAT:
298 case EIO_FSTAT: 515 case EIO_FSTAT:
299 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 516 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
300 PL_laststatval = req->result; 517 PL_laststatval = req->result;
301 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 518 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
302 PUSHs (sv_2mortal (newSViv (req->result))); 519 PUSHs (sv_result);
303 break; 520 break;
304 521
305 case EIO_READ: 522 case EIO_READ:
523 {
306 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));
307 *SvEND (req->sv2) = 0; 525 *SvEND (req->sv2) = 0;
308 PUSHs (sv_2mortal (newSViv (req->result))); 526 SvPOK_only (req->sv2);
527 SvSETMAGIC (req->sv2);
528 PUSHs (sv_result);
529 }
309 break; 530 break;
310 531
311 case EIO_DUP2: 532 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
312 if (req->result > 0) 533 if (req->result > 0)
313 req->result = 0; 534 SvIV_set (sv_result, 0);
314 /* FALLTHROUGH */ 535 /* FALLTHROUGH */
315 536
316 default: 537 default:
317 PUSHs (sv_2mortal (newSViv (req->result))); 538 PUSHs (sv_result);
318 break; 539 break;
319 } 540 }
320 541
321 errno = req->errorno; 542 errno = req->errorno;
322 543
323 PUTBACK; 544 PUTBACK;
324 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 545 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
325 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;
326 552
327 FREETMPS; 553 FREETMPS;
328 LEAVE; 554 LEAVE;
329 555
330 PUTBACK; 556 PUTBACK;
359 grp->sv2 = 0; 585 grp->sv2 = 0;
360 586
361 eio_grp_cancel (grp); 587 eio_grp_cancel (grp);
362} 588}
363 589
364#ifdef USE_SOCKETS_AS_HANDLES
365# define TO_SOCKET(x) (win32_get_osfhandle (x))
366#else
367# define TO_SOCKET(x) (x)
368#endif
369
370static void 590static void
371create_respipe (void) 591create_respipe (void)
372{ 592{
373 int old_readfd = respipe [0];
374
375 if (respipe [1] >= 0)
376 respipe_close (TO_SOCKET (respipe [1]));
377
378#ifdef _WIN32
379 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
380#else
381 if (pipe (respipe)) 593 if (s_epipe_renew (&respipe))
382#endif
383 croak ("unable to initialize result pipe"); 594 croak ("IO::AIO: unable to initialize result pipe");
384
385 if (old_readfd >= 0)
386 {
387 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
388 croak ("unable to initialize result pipe(2)");
389
390 respipe_close (respipe [0]);
391 respipe [0] = old_readfd;
392 }
393
394#ifdef _WIN32
395 int arg = 1;
396 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
397 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
398#else
399 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
400 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
401#endif
402 croak ("unable to initialize result pipe(3)");
403
404 respipe_osf [0] = TO_SOCKET (respipe [0]);
405 respipe_osf [1] = TO_SOCKET (respipe [1]);
406} 595}
407 596
408static void poll_wait (void) 597static void poll_wait (void)
409{ 598{
410 fd_set rfd;
411
412 while (eio_nreqs ()) 599 while (eio_nreqs ())
413 { 600 {
414 int size; 601 int size;
415 602
416 X_LOCK (reslock); 603 X_LOCK (reslock);
420 if (size) 607 if (size)
421 return; 608 return;
422 609
423 etp_maybe_start_thread (); 610 etp_maybe_start_thread ();
424 611
425 FD_ZERO (&rfd); 612 s_epipe_wait (&respipe);
426 FD_SET (respipe [0], &rfd);
427
428 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
429 } 613 }
430} 614}
431 615
432static int poll_cb (void) 616static int poll_cb (void)
433{ 617{
448static void atfork_child (void) 632static void atfork_child (void)
449{ 633{
450 create_respipe (); 634 create_respipe ();
451} 635}
452 636
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
682static SV *
683get_cb (SV *cb_sv)
684{
685 SvGETMAGIC (cb_sv);
686 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
687}
688
453#define dREQ \ 689#define dREQ \
690 SV *cb_cv; \
454 aio_req req; \ 691 aio_req req; \
455 int req_pri = next_pri; \ 692 int req_pri = next_pri; \
456 next_pri = EIO_PRI_DEFAULT; \ 693 next_pri = EIO_PRI_DEFAULT; \
457 \ 694 \
458 if (SvOK (callback) && !SvROK (callback)) \ 695 cb_cv = get_cb (callback); \
459 croak ("callback must be undef or of reference type"); \
460 \ 696 \
461 Newz (0, req, 1, eio_req); \ 697 Newz (0, req, 1, eio_req); \
462 if (!req) \ 698 if (!req) \
463 croak ("out of memory during eio_req allocation"); \ 699 croak ("out of memory during eio_req allocation"); \
464 \ 700 \
465 req->callback = newSVsv (callback); \ 701 req->callback = SvREFCNT_inc (cb_cv); \
466 req->pri = req_pri 702 req->pri = req_pri
467 703
468#define REQ_SEND \ 704#define REQ_SEND \
705 PUTBACK; \
469 req_submit (req); \ 706 req_submit (req); \
707 SPAGAIN; \
470 \ 708 \
471 if (GIMME_V != G_VOID) \ 709 if (GIMME_V != G_VOID) \
472 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 710 XPUSHs (req_sv (req, aio_req_stash));
473 711
474MODULE = IO::AIO PACKAGE = IO::AIO 712MODULE = IO::AIO PACKAGE = IO::AIO
475 713
476PROTOTYPES: ENABLE 714PROTOTYPES: ENABLE
477 715
478BOOT: 716BOOT:
479{ 717{
480 stash = gv_stashpv ("IO::AIO", 1); 718 static const struct {
481 719 const char *name;
482 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 720 IV iv;
483 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 721 } *civ, const_iv[] = {
484 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 722# define const_niv(name, value) { # name, (IV) value },
485 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); 723# define const_iv(name) { # name, (IV) name },
486 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); 724# define const_eio(name) { # name, (IV) EIO_ ## name },
725 const_iv (EXDEV)
726 const_iv (ENOSYS)
727 const_iv (O_RDONLY)
728 const_iv (O_WRONLY)
729 const_iv (O_RDWR)
730 const_iv (O_CREAT)
731 const_iv (O_TRUNC)
732 const_iv (O_EXCL)
733 const_iv (O_APPEND)
487#ifndef _WIN32 734#ifndef _WIN32
488 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); 735 const_iv (S_IFIFO)
489#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)
490 743
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
789 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
790 const_eio (SYNC_FILE_RANGE_WRITE)
791 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
792
793 const_eio (READDIR_DENTS)
794 const_eio (READDIR_DIRS_FIRST)
795 const_eio (READDIR_STAT_ORDER)
796 const_eio (READDIR_FOUND_UNKNOWN)
797
798 const_eio (DT_UNKNOWN)
799 const_eio (DT_FIFO)
800 const_eio (DT_CHR)
801 const_eio (DT_DIR)
802 const_eio (DT_BLK)
803 const_eio (DT_REG)
804 const_eio (DT_LNK)
805 const_eio (DT_SOCK)
806 const_eio (DT_WHT)
807 };
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
813 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
814 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
815
816 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
817
491 create_respipe (); 818 create_respipe ();
492 819
493 if (eio_init (want_poll, done_poll) < 0) 820 if (eio_init (want_poll, done_poll) < 0)
494 croak ("IO::AIO: unable to initialise eio library"); 821 croak ("IO::AIO: unable to initialise eio library");
495 822
496 /* atfork child called in fifo order, so before eio's handler */ 823 /* atfork child called in fifo order, so before eio's handler */
497 X_THREAD_ATFORK (0, 0, atfork_child); 824 X_THREAD_ATFORK (0, 0, atfork_child);
498} 825}
499 826
500void 827void
501max_poll_reqs (int nreqs) 828max_poll_reqs (int nreqs)
502 PROTOTYPE: $ 829 PROTOTYPE: $
533 CODE: 860 CODE:
534 max_outstanding = maxreqs; 861 max_outstanding = maxreqs;
535 862
536void 863void
537aio_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)
538 PROTOTYPE: $$$;$
539 PPCODE: 865 PPCODE:
540{ 866{
541 dREQ; 867 dREQ;
542 868
543 req->type = EIO_OPEN; 869 req->type = EIO_OPEN;
549 REQ_SEND; 875 REQ_SEND;
550} 876}
551 877
552void 878void
553aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 879aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
554 PROTOTYPE: $;$
555 ALIAS: 880 ALIAS:
556 aio_fsync = EIO_FSYNC 881 aio_fsync = EIO_FSYNC
557 aio_fdatasync = EIO_FDATASYNC 882 aio_fdatasync = EIO_FDATASYNC
558 PPCODE: 883 PPCODE:
559{ 884{
885 int fd = s_fileno_croak (fh, 0);
560 dREQ; 886 dREQ;
561 887
562 req->type = ix; 888 req->type = ix;
563 req->sv1 = newSVsv (fh); 889 req->sv1 = newSVsv (fh);
564 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 890 req->int1 = fd;
565 891
566 REQ_SEND (req); 892 REQ_SEND (req);
567} 893}
568 894
569void 895void
896aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
897 PPCODE:
898{
899 int fd = s_fileno_croak (fh, 0);
900 dREQ;
901
902 req->type = EIO_SYNC_FILE_RANGE;
903 req->sv1 = newSVsv (fh);
904 req->int1 = fd;
905 req->offs = offset;
906 req->size = nbytes;
907 req->int2 = flags;
908
909 REQ_SEND (req);
910}
911
912void
570aio_close (SV *fh, SV *callback=&PL_sv_undef) 913aio_close (SV *fh, SV *callback=&PL_sv_undef)
571 PROTOTYPE: $;$
572 PPCODE: 914 PPCODE:
573{ 915{
574 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 */
917 int fd = s_fileno_croak (fh, 0);
575 dREQ; 918 dREQ;
576 919
577 if (close_pipe < 0) 920 if (close_pipe < 0)
578 { 921 {
579 int pipefd [2]; 922 int pipefd [2];
587 } 930 }
588 931
589 req->type = EIO_DUP2; 932 req->type = EIO_DUP2;
590 req->int1 = close_pipe; 933 req->int1 = close_pipe;
591 req->sv2 = newSVsv (fh); 934 req->sv2 = newSVsv (fh);
592 req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh))); 935 req->int2 = fd;
593 936
594 REQ_SEND (req); 937 REQ_SEND (req);
595} 938}
596 939
597void 940void
598aio_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)
599 ALIAS: 942 ALIAS:
600 aio_read = EIO_READ 943 aio_read = EIO_READ
601 aio_write = EIO_WRITE 944 aio_write = EIO_WRITE
602 PROTOTYPE: $$$$$;$
603 PPCODE: 945 PPCODE:
604{ 946{
605 STRLEN svlen; 947 STRLEN svlen;
948 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
606 char *svptr = SvPVbyte (data, svlen); 949 char *svptr = SvPVbyte (data, svlen);
607 UV len = SvUV (length); 950 UV len = SvUV (length);
608
609 SvUPGRADE (data, SVt_PV);
610 SvPOK_on (data);
611 951
612 if (dataoffset < 0) 952 if (dataoffset < 0)
613 dataoffset += svlen; 953 dataoffset += svlen;
614 954
615 if (dataoffset < 0 || dataoffset > svlen) 955 if (dataoffset < 0 || dataoffset > svlen)
621 if (!SvOK (length) || len + dataoffset > svlen) 961 if (!SvOK (length) || len + dataoffset > svlen)
622 len = svlen - dataoffset; 962 len = svlen - dataoffset;
623 } 963 }
624 else 964 else
625 { 965 {
626 /* read: grow scalar as necessary */ 966 /* read: check type and grow scalar as necessary */
967 SvUPGRADE (data, SVt_PV);
627 svptr = SvGROW (data, len + dataoffset + 1); 968 svptr = SvGROW (data, len + dataoffset + 1);
628 } 969 }
629 970
630 if (len < 0)
631 croak ("length must not be negative");
632
633 { 971 {
634 dREQ; 972 dREQ;
635 973
636 req->type = ix; 974 req->type = ix;
637 req->sv1 = newSVsv (fh); 975 req->sv1 = newSVsv (fh);
638 req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh)) 976 req->int1 = fd;
639 : IoOFP (sv_2io (fh)));
640 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 977 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
641 req->size = len; 978 req->size = len;
642 req->sv2 = SvREFCNT_inc (data); 979 req->sv2 = SvREFCNT_inc (data);
643 req->ptr2 = (char *)svptr + dataoffset; 980 req->ptr2 = (char *)svptr + dataoffset;
644 req->stroffset = dataoffset; 981 req->stroffset = dataoffset;
653 } 990 }
654} 991}
655 992
656void 993void
657aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 994aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
658 PROTOTYPE: $$;$
659 PPCODE: 995 PPCODE:
660{ 996{
661 SV *data; 997 SV *data;
662 dREQ; 998 dREQ;
663 999
667 1003
668 REQ_SEND; 1004 REQ_SEND;
669} 1005}
670 1006
671void 1007void
672aio_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)
673 PROTOTYPE: $$$$;$
674 PPCODE: 1009 PPCODE:
675{ 1010{
1011 int ifd = s_fileno_croak (in_fh , 0);
1012 int ofd = s_fileno_croak (out_fh, 1);
676 dREQ; 1013 dREQ;
677 1014
678 req->type = EIO_SENDFILE; 1015 req->type = EIO_SENDFILE;
679 req->sv1 = newSVsv (out_fh); 1016 req->sv1 = newSVsv (out_fh);
680 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1017 req->int1 = ofd;
681 req->sv2 = newSVsv (in_fh); 1018 req->sv2 = newSVsv (in_fh);
682 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1019 req->int2 = ifd;
683 req->offs = SvVAL64 (in_offset); 1020 req->offs = in_offset;
684 req->size = length; 1021 req->size = length;
685 1022
686 REQ_SEND; 1023 REQ_SEND;
687} 1024}
688 1025
689void 1026void
690aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1027aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
691 PROTOTYPE: $$$;$
692 PPCODE: 1028 PPCODE:
693{ 1029{
1030 int fd = s_fileno_croak (fh, 0);
694 dREQ; 1031 dREQ;
695 1032
696 req->type = EIO_READAHEAD; 1033 req->type = EIO_READAHEAD;
697 req->sv1 = newSVsv (fh); 1034 req->sv1 = newSVsv (fh);
698 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1035 req->int1 = fd;
699 req->offs = SvVAL64 (offset); 1036 req->offs = offset;
700 req->size = length; 1037 req->size = length;
701 1038
702 REQ_SEND; 1039 REQ_SEND;
703} 1040}
704 1041
705void 1042void
706aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1043aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
707 ALIAS: 1044 ALIAS:
708 aio_stat = EIO_STAT 1045 aio_stat = EIO_STAT
709 aio_lstat = EIO_LSTAT 1046 aio_lstat = EIO_LSTAT
1047 aio_statvfs = EIO_STATVFS
710 PPCODE: 1048 PPCODE:
711{ 1049{
712 dREQ; 1050 dREQ;
713 1051
714 req->sv1 = newSVsv (fh_or_path); 1052 req->sv1 = newSVsv (fh_or_path);
718 req->type = ix; 1056 req->type = ix;
719 req->ptr1 = SvPVbyte_nolen (req->sv1); 1057 req->ptr1 = SvPVbyte_nolen (req->sv1);
720 } 1058 }
721 else 1059 else
722 { 1060 {
723 req->type = EIO_FSTAT; 1061 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
724 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1062 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
725 } 1063 }
726 1064
727 REQ_SEND; 1065 REQ_SEND;
728} 1066}
823 1161
824 REQ_SEND; 1162 REQ_SEND;
825} 1163}
826 1164
827void 1165void
1166aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1167 PPCODE:
1168{
1169 dREQ;
1170
1171 req->type = EIO_READDIR;
1172 req->sv1 = newSVsv (pathname);
1173 req->ptr1 = SvPVbyte_nolen (req->sv1);
1174 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1175
1176 if (flags & EIO_READDIR_DENTS)
1177 req->int1 |= EIO_READDIR_CUSTOM2;
1178
1179 REQ_SEND;
1180}
1181
1182void
828aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1183aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
829 ALIAS: 1184 ALIAS:
830 aio_unlink = EIO_UNLINK 1185 aio_unlink = EIO_UNLINK
831 aio_rmdir = EIO_RMDIR 1186 aio_rmdir = EIO_RMDIR
832 aio_readdir = EIO_READDIR 1187 aio_readdir = EIO_READDIR
874 1229
875 REQ_SEND; 1230 REQ_SEND;
876} 1231}
877 1232
878void 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
879aio_busy (double delay, SV *callback=&PL_sv_undef) 1308aio_busy (double delay, SV *callback=&PL_sv_undef)
880 PPCODE: 1309 PPCODE:
881{ 1310{
882 dREQ; 1311 dREQ;
883 1312
887 REQ_SEND; 1316 REQ_SEND;
888} 1317}
889 1318
890void 1319void
891aio_group (SV *callback=&PL_sv_undef) 1320aio_group (SV *callback=&PL_sv_undef)
892 PROTOTYPE: ;$
893 PPCODE: 1321 PPCODE:
894{ 1322{
895 dREQ; 1323 dREQ;
896 1324
897 req->type = EIO_GROUP; 1325 req->type = EIO_GROUP;
898 1326
899 eio_submit (req); 1327 req_submit (req);
900 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1328 XPUSHs (req_sv (req, aio_grp_stash));
901} 1329}
902 1330
903void 1331void
904aio_nop (SV *callback=&PL_sv_undef) 1332aio_nop (SV *callback=&PL_sv_undef)
905 ALIAS: 1333 ALIAS:
914 REQ_SEND; 1342 REQ_SEND;
915} 1343}
916 1344
917int 1345int
918aioreq_pri (int pri = 0) 1346aioreq_pri (int pri = 0)
919 PROTOTYPE: ;$
920 CODE: 1347 CODE:
921 RETVAL = next_pri; 1348 RETVAL = next_pri;
922 if (items > 0) 1349 if (items > 0)
923 { 1350 {
924 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1351 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
936 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1363 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
937 next_pri = nice; 1364 next_pri = nice;
938 1365
939void 1366void
940flush () 1367flush ()
941 PROTOTYPE:
942 CODE: 1368 CODE:
943 while (eio_nreqs ()) 1369 while (eio_nreqs ())
944 { 1370 {
945 poll_wait (); 1371 poll_wait ();
946 poll_cb (); 1372 poll_cb ();
947 } 1373 }
948 1374
949int 1375int
950poll() 1376poll ()
951 PROTOTYPE:
952 CODE: 1377 CODE:
953 poll_wait (); 1378 poll_wait ();
954 RETVAL = poll_cb (); 1379 RETVAL = poll_cb ();
955 OUTPUT: 1380 OUTPUT:
956 RETVAL 1381 RETVAL
957 1382
958int 1383int
959poll_fileno() 1384poll_fileno ()
960 PROTOTYPE:
961 CODE: 1385 CODE:
962 RETVAL = respipe [0]; 1386 RETVAL = s_epipe_fd (&respipe);
963 OUTPUT: 1387 OUTPUT:
964 RETVAL 1388 RETVAL
965 1389
966int 1390int
967poll_cb(...) 1391poll_cb (...)
968 PROTOTYPE: 1392 PROTOTYPE:
969 CODE: 1393 CODE:
970 RETVAL = poll_cb (); 1394 RETVAL = poll_cb ();
971 OUTPUT: 1395 OUTPUT:
972 RETVAL 1396 RETVAL
973 1397
974void 1398void
975poll_wait() 1399poll_wait ()
976 PROTOTYPE:
977 CODE: 1400 CODE:
978 poll_wait (); 1401 poll_wait ();
979 1402
980int 1403int
981nreqs() 1404nreqs ()
982 PROTOTYPE:
983 CODE: 1405 CODE:
984 RETVAL = eio_nreqs (); 1406 RETVAL = eio_nreqs ();
985 OUTPUT: 1407 OUTPUT:
986 RETVAL 1408 RETVAL
987 1409
988int 1410int
989nready() 1411nready ()
990 PROTOTYPE:
991 CODE: 1412 CODE:
992 RETVAL = eio_nready (); 1413 RETVAL = eio_nready ();
993 OUTPUT: 1414 OUTPUT:
994 RETVAL 1415 RETVAL
995 1416
996int 1417int
997npending() 1418npending ()
998 PROTOTYPE:
999 CODE: 1419 CODE:
1000 RETVAL = eio_npending (); 1420 RETVAL = eio_npending ();
1001 OUTPUT: 1421 OUTPUT:
1002 RETVAL 1422 RETVAL
1003 1423
1004int 1424int
1005nthreads() 1425nthreads ()
1006 PROTOTYPE:
1007 CODE: 1426 CODE:
1008 RETVAL = eio_nthreads (); 1427 RETVAL = eio_nthreads ();
1009 OUTPUT: 1428 OUTPUT:
1010 RETVAL 1429 RETVAL
1011 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
1012void _on_next_submit (SV *cb) 1553void _on_next_submit (SV *cb)
1013 CODE: 1554 CODE:
1014 SvREFCNT_dec (on_next_submit); 1555 SvREFCNT_dec (on_next_submit);
1015 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; 1556 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1016 1557
1023 CODE: 1564 CODE:
1024 eio_cancel (req); 1565 eio_cancel (req);
1025 1566
1026void 1567void
1027cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1568cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1028 CODE: 1569 PPCODE:
1570{
1571 if (GIMME_V != G_VOID)
1572 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1573
1574 if (items > 1)
1575 {
1576 SV *cb_cv =get_cb (callback);
1577
1029 SvREFCNT_dec (req->callback); 1578 SvREFCNT_dec (req->callback);
1030 req->callback = newSVsv (callback); 1579 req->callback = SvREFCNT_inc (cb_cv);
1580 }
1581}
1031 1582
1032MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1583MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1033 1584
1034void 1585void
1035add (aio_req grp, ...) 1586add (aio_req grp, ...)
1067 AV *av; 1618 AV *av;
1068 1619
1069 grp->errorno = errno; 1620 grp->errorno = errno;
1070 1621
1071 av = newAV (); 1622 av = newAV ();
1623 av_extend (av, items - 1);
1072 1624
1073 for (i = 1; i < items; ++i ) 1625 for (i = 1; i < items; ++i )
1074 av_push (av, newSVsv (ST (i))); 1626 av_push (av, newSVsv (ST (i)));
1075 1627
1076 SvREFCNT_dec (grp->sv1); 1628 SvREFCNT_dec (grp->sv1);
1090void 1642void
1091feed (aio_req grp, SV *callback=&PL_sv_undef) 1643feed (aio_req grp, SV *callback=&PL_sv_undef)
1092 CODE: 1644 CODE:
1093{ 1645{
1094 SvREFCNT_dec (grp->sv2); 1646 SvREFCNT_dec (grp->sv2);
1095 grp->sv2 = newSVsv (callback); 1647 grp->sv2 = newSVsv (callback);
1648 grp->feed = aio_grp_feed;
1096 1649
1097 if (grp->int2 <= 0) 1650 if (grp->int2 <= 0)
1098 grp->int2 = 2; 1651 grp->int2 = 2;
1099 1652
1100 eio_grp_limit (grp, grp->int2); 1653 eio_grp_limit (grp, grp->int2);

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