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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 1.173 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
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; \
96 120
97#define EIO_NO_WRAPPERS 1 121#define EIO_NO_WRAPPERS 1
98 122
99#include "libeio/eio.h" 123#include "libeio/eio.h"
100 124
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
101static int req_invoke (eio_req *req); 241static int req_invoke (eio_req *req);
102#define EIO_FINISH(req) req_invoke (req) 242#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); 243static void req_destroy (eio_req *grp);
106#define EIO_DESTROY(req) req_destroy (req) 244#define EIO_DESTROY(req) req_destroy (req)
107 245
108enum { 246enum {
109 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ 247 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
116 254
117static SV *on_next_submit; 255static SV *on_next_submit;
118static int next_pri = EIO_PRI_DEFAULT; 256static int next_pri = EIO_PRI_DEFAULT;
119static int max_outstanding; 257static int max_outstanding;
120 258
121static int respipe_osf [2], respipe [2] = { -1, -1 }; 259static s_epipe respipe;
122 260
123static void req_destroy (aio_req req); 261static void req_destroy (aio_req req);
124static void req_cancel (aio_req req); 262static void req_cancel (aio_req req);
125 263
126static void want_poll (void) 264static void want_poll (void)
127{ 265{
128 /* write a dummy byte to the pipe so fh becomes ready */ 266 /* write a dummy byte to the pipe so fh becomes ready */
129 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1); 267 s_epipe_signal (&respipe);
130} 268}
131 269
132static void done_poll (void) 270static void done_poll (void)
133{ 271{
134 /* read any signals sent by the worker threads */ 272 /* read any signals sent by the worker threads */
135 char buf [4]; 273 s_epipe_drain (&respipe);
136 while (respipe_read (respipe [0], buf, 4) == 4)
137 ;
138} 274}
139 275
140/* must be called at most once */ 276/* must be called at most once */
141static SV *req_sv (aio_req req, const char *klass) 277static SV *req_sv (aio_req req, HV *stash)
142{ 278{
143 if (!req->self) 279 if (!req->self)
144 { 280 {
145 req->self = (SV *)newHV (); 281 req->self = (SV *)newHV ();
146 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 282 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
147 } 283 }
148 284
149 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 285 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
150} 286}
151 287
152static aio_req SvAIO_REQ (SV *sv) 288static aio_req SvAIO_REQ (SV *sv)
153{ 289{
154 MAGIC *mg; 290 MAGIC *mg;
155 291
156 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")))
157 croak ("object of class " AIO_REQ_KLASS " expected"); 296 croak ("object of class IO::AIO::REQ expected");
158 297
159 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 298 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
160 299
161 return mg ? (aio_req)mg->mg_ptr : 0; 300 return mg ? (aio_req)mg->mg_ptr : 0;
162} 301}
168 dSP; 307 dSP;
169 308
170 ENTER; 309 ENTER;
171 SAVETMPS; 310 SAVETMPS;
172 PUSHMARK (SP); 311 PUSHMARK (SP);
173 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 312 XPUSHs (req_sv (grp, aio_grp_stash));
174 PUTBACK; 313 PUTBACK;
175 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 314 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
176 SPAGAIN; 315 SPAGAIN;
177 FREETMPS; 316 FREETMPS;
178 LEAVE; 317 LEAVE;
181 320
182static void req_submit (eio_req *req) 321static void req_submit (eio_req *req)
183{ 322{
184 eio_submit (req); 323 eio_submit (req);
185 324
186 if (on_next_submit) 325 if (expect_false (on_next_submit))
187 { 326 {
188 dSP; 327 dSP;
189 SV *cb = sv_2mortal (on_next_submit); 328 SV *cb = sv_2mortal (on_next_submit);
190 329
191 on_next_submit = 0; 330 on_next_submit = 0;
196 } 335 }
197} 336}
198 337
199static int req_invoke (eio_req *req) 338static int req_invoke (eio_req *req)
200{ 339{
201 dSP;
202
203 if (req->flags & FLAG_SV2_RO_OFF) 340 if (req->flags & FLAG_SV2_RO_OFF)
204 SvREADONLY_off (req->sv2); 341 SvREADONLY_off (req->sv2);
205 342
206 if (!EIO_CANCELLED (req) && SvOK (req->callback)) 343 if (!EIO_CANCELLED (req) && req->callback)
207 { 344 {
345 dSP;
346 static SV *sv_result_cache; /* caches the result integer SV */
347 SV *sv_result;
348
208 ENTER; 349 ENTER;
209 SAVETMPS; 350 SAVETMPS;
210 PUSHMARK (SP); 351 PUSHMARK (SP);
211 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 }
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(), su 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# 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
674static SV *
675get_cb (SV *cb_sv)
676{
677 SvGETMAGIC (cb_sv);
678 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
679}
680
453#define dREQ \ 681#define dREQ \
682 SV *cb_cv; \
454 aio_req req; \ 683 aio_req req; \
455 int req_pri = next_pri; \ 684 int req_pri = next_pri; \
456 next_pri = EIO_PRI_DEFAULT; \ 685 next_pri = EIO_PRI_DEFAULT; \
457 \ 686 \
458 if (SvOK (callback) && !SvROK (callback)) \ 687 cb_cv = get_cb (callback); \
459 croak ("callback must be undef or of reference type"); \
460 \ 688 \
461 Newz (0, req, 1, eio_req); \ 689 Newz (0, req, 1, eio_req); \
462 if (!req) \ 690 if (!req) \
463 croak ("out of memory during eio_req allocation"); \ 691 croak ("out of memory during eio_req allocation"); \
464 \ 692 \
465 req->callback = newSVsv (callback); \ 693 req->callback = SvREFCNT_inc (cb_cv); \
466 req->pri = req_pri 694 req->pri = req_pri
467 695
468#define REQ_SEND \ 696#define REQ_SEND \
697 PUTBACK; \
469 req_submit (req); \ 698 req_submit (req); \
699 SPAGAIN; \
470 \ 700 \
471 if (GIMME_V != G_VOID) \ 701 if (GIMME_V != G_VOID) \
472 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 702 XPUSHs (req_sv (req, aio_req_stash));
473 703
474MODULE = IO::AIO PACKAGE = IO::AIO 704MODULE = IO::AIO PACKAGE = IO::AIO
475 705
476PROTOTYPES: ENABLE 706PROTOTYPES: ENABLE
477 707
478BOOT: 708BOOT:
479{ 709{
480 stash = gv_stashpv ("IO::AIO", 1); 710 static const struct {
481 711 const char *name;
482 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 712 IV iv;
483 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 713 } *civ, const_iv[] = {
484 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 714# define const_niv(name, value) { # name, (IV) value },
485 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); 715# define const_iv(name) { # name, (IV) name },
486 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); 716# define const_eio(name) { # name, (IV) EIO_ ## name },
717 const_iv (EXDEV)
718 const_iv (ENOSYS)
719 const_iv (O_RDONLY)
720 const_iv (O_WRONLY)
721 const_iv (O_RDWR)
722 const_iv (O_CREAT)
723 const_iv (O_TRUNC)
724 const_iv (O_EXCL)
725 const_iv (O_APPEND)
487#ifndef _WIN32 726#ifndef _WIN32
488 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); 727 const_iv (S_IFIFO)
489#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)
490 735
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
781 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
782 const_eio (SYNC_FILE_RANGE_WRITE)
783 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
784
785 const_eio (READDIR_DENTS)
786 const_eio (READDIR_DIRS_FIRST)
787 const_eio (READDIR_STAT_ORDER)
788 const_eio (READDIR_FOUND_UNKNOWN)
789
790 const_eio (DT_UNKNOWN)
791 const_eio (DT_FIFO)
792 const_eio (DT_CHR)
793 const_eio (DT_DIR)
794 const_eio (DT_BLK)
795 const_eio (DT_REG)
796 const_eio (DT_LNK)
797 const_eio (DT_SOCK)
798 const_eio (DT_WHT)
799 };
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
805 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
806 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
807
808 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
809
491 create_respipe (); 810 create_respipe ();
492 811
493 if (eio_init (want_poll, done_poll) < 0) 812 if (eio_init (want_poll, done_poll) < 0)
494 croak ("IO::AIO: unable to initialise eio library"); 813 croak ("IO::AIO: unable to initialise eio library");
495 814
496 /* atfork child called in fifo order, so before eio's handler */ 815 /* atfork child called in fifo order, so before eio's handler */
497 X_THREAD_ATFORK (0, 0, atfork_child); 816 X_THREAD_ATFORK (0, 0, atfork_child);
498} 817}
499 818
500void 819void
501max_poll_reqs (int nreqs) 820max_poll_reqs (int nreqs)
502 PROTOTYPE: $ 821 PROTOTYPE: $
533 CODE: 852 CODE:
534 max_outstanding = maxreqs; 853 max_outstanding = maxreqs;
535 854
536void 855void
537aio_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)
538 PROTOTYPE: $$$;$
539 PPCODE: 857 PPCODE:
540{ 858{
541 dREQ; 859 dREQ;
542 860
543 req->type = EIO_OPEN; 861 req->type = EIO_OPEN;
549 REQ_SEND; 867 REQ_SEND;
550} 868}
551 869
552void 870void
553aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 871aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
554 PROTOTYPE: $;$
555 ALIAS: 872 ALIAS:
556 aio_fsync = EIO_FSYNC 873 aio_fsync = EIO_FSYNC
557 aio_fdatasync = EIO_FDATASYNC 874 aio_fdatasync = EIO_FDATASYNC
558 PPCODE: 875 PPCODE:
559{ 876{
877 int fd = s_fileno_croak (fh, 0);
560 dREQ; 878 dREQ;
561 879
562 req->type = ix; 880 req->type = ix;
563 req->sv1 = newSVsv (fh); 881 req->sv1 = newSVsv (fh);
564 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 882 req->int1 = fd;
565 883
566 REQ_SEND (req); 884 REQ_SEND (req);
567} 885}
568 886
569void 887void
888aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
889 PPCODE:
890{
891 int fd = s_fileno_croak (fh, 0);
892 dREQ;
893
894 req->type = EIO_SYNC_FILE_RANGE;
895 req->sv1 = newSVsv (fh);
896 req->int1 = fd;
897 req->offs = offset;
898 req->size = nbytes;
899 req->int2 = flags;
900
901 REQ_SEND (req);
902}
903
904void
570aio_close (SV *fh, SV *callback=&PL_sv_undef) 905aio_close (SV *fh, SV *callback=&PL_sv_undef)
571 PROTOTYPE: $;$
572 PPCODE: 906 PPCODE:
573{ 907{
574 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 */
909 int fd = s_fileno_croak (fh, 0);
575 dREQ; 910 dREQ;
576 911
577 if (close_pipe < 0) 912 if (close_pipe < 0)
578 { 913 {
579 int pipefd [2]; 914 int pipefd [2];
587 } 922 }
588 923
589 req->type = EIO_DUP2; 924 req->type = EIO_DUP2;
590 req->int1 = close_pipe; 925 req->int1 = close_pipe;
591 req->sv2 = newSVsv (fh); 926 req->sv2 = newSVsv (fh);
592 req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh))); 927 req->int2 = fd;
593 928
594 REQ_SEND (req); 929 REQ_SEND (req);
595} 930}
596 931
597void 932void
598aio_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)
599 ALIAS: 934 ALIAS:
600 aio_read = EIO_READ 935 aio_read = EIO_READ
601 aio_write = EIO_WRITE 936 aio_write = EIO_WRITE
602 PROTOTYPE: $$$$$;$
603 PPCODE: 937 PPCODE:
604{ 938{
605 STRLEN svlen; 939 STRLEN svlen;
940 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
606 char *svptr = SvPVbyte (data, svlen); 941 char *svptr = SvPVbyte (data, svlen);
607 UV len = SvUV (length); 942 UV len = SvUV (length);
608
609 SvUPGRADE (data, SVt_PV);
610 SvPOK_on (data);
611 943
612 if (dataoffset < 0) 944 if (dataoffset < 0)
613 dataoffset += svlen; 945 dataoffset += svlen;
614 946
615 if (dataoffset < 0 || dataoffset > svlen) 947 if (dataoffset < 0 || dataoffset > svlen)
621 if (!SvOK (length) || len + dataoffset > svlen) 953 if (!SvOK (length) || len + dataoffset > svlen)
622 len = svlen - dataoffset; 954 len = svlen - dataoffset;
623 } 955 }
624 else 956 else
625 { 957 {
626 /* read: grow scalar as necessary */ 958 /* read: check type and grow scalar as necessary */
959 SvUPGRADE (data, SVt_PV);
627 svptr = SvGROW (data, len + dataoffset + 1); 960 svptr = SvGROW (data, len + dataoffset + 1);
628 } 961 }
629 962
630 if (len < 0)
631 croak ("length must not be negative");
632
633 { 963 {
634 dREQ; 964 dREQ;
635 965
636 req->type = ix; 966 req->type = ix;
637 req->sv1 = newSVsv (fh); 967 req->sv1 = newSVsv (fh);
638 req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh)) 968 req->int1 = fd;
639 : IoOFP (sv_2io (fh)));
640 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 969 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
641 req->size = len; 970 req->size = len;
642 req->sv2 = SvREFCNT_inc (data); 971 req->sv2 = SvREFCNT_inc (data);
643 req->ptr2 = (char *)svptr + dataoffset; 972 req->ptr2 = (char *)svptr + dataoffset;
644 req->stroffset = dataoffset; 973 req->stroffset = dataoffset;
653 } 982 }
654} 983}
655 984
656void 985void
657aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 986aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
658 PROTOTYPE: $$;$
659 PPCODE: 987 PPCODE:
660{ 988{
661 SV *data; 989 SV *data;
662 dREQ; 990 dREQ;
663 991
667 995
668 REQ_SEND; 996 REQ_SEND;
669} 997}
670 998
671void 999void
672aio_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)
673 PROTOTYPE: $$$$;$
674 PPCODE: 1001 PPCODE:
675{ 1002{
1003 int ifd = s_fileno_croak (in_fh , 0);
1004 int ofd = s_fileno_croak (out_fh, 1);
676 dREQ; 1005 dREQ;
677 1006
678 req->type = EIO_SENDFILE; 1007 req->type = EIO_SENDFILE;
679 req->sv1 = newSVsv (out_fh); 1008 req->sv1 = newSVsv (out_fh);
680 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1009 req->int1 = ofd;
681 req->sv2 = newSVsv (in_fh); 1010 req->sv2 = newSVsv (in_fh);
682 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1011 req->int2 = ifd;
683 req->offs = SvVAL64 (in_offset); 1012 req->offs = in_offset;
684 req->size = length; 1013 req->size = length;
685 1014
686 REQ_SEND; 1015 REQ_SEND;
687} 1016}
688 1017
689void 1018void
690aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1019aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
691 PROTOTYPE: $$$;$
692 PPCODE: 1020 PPCODE:
693{ 1021{
1022 int fd = s_fileno_croak (fh, 0);
694 dREQ; 1023 dREQ;
695 1024
696 req->type = EIO_READAHEAD; 1025 req->type = EIO_READAHEAD;
697 req->sv1 = newSVsv (fh); 1026 req->sv1 = newSVsv (fh);
698 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1027 req->int1 = fd;
699 req->offs = SvVAL64 (offset); 1028 req->offs = offset;
700 req->size = length; 1029 req->size = length;
701 1030
702 REQ_SEND; 1031 REQ_SEND;
703} 1032}
704 1033
705void 1034void
706aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1035aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
707 ALIAS: 1036 ALIAS:
708 aio_stat = EIO_STAT 1037 aio_stat = EIO_STAT
709 aio_lstat = EIO_LSTAT 1038 aio_lstat = EIO_LSTAT
1039 aio_statvfs = EIO_STATVFS
710 PPCODE: 1040 PPCODE:
711{ 1041{
712 dREQ; 1042 dREQ;
713 1043
714 req->sv1 = newSVsv (fh_or_path); 1044 req->sv1 = newSVsv (fh_or_path);
718 req->type = ix; 1048 req->type = ix;
719 req->ptr1 = SvPVbyte_nolen (req->sv1); 1049 req->ptr1 = SvPVbyte_nolen (req->sv1);
720 } 1050 }
721 else 1051 else
722 { 1052 {
723 req->type = EIO_FSTAT; 1053 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
724 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1054 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
725 } 1055 }
726 1056
727 REQ_SEND; 1057 REQ_SEND;
728} 1058}
823 1153
824 REQ_SEND; 1154 REQ_SEND;
825} 1155}
826 1156
827void 1157void
1158aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1159 PPCODE:
1160{
1161 dREQ;
1162
1163 req->type = EIO_READDIR;
1164 req->sv1 = newSVsv (pathname);
1165 req->ptr1 = SvPVbyte_nolen (req->sv1);
1166 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1167
1168 if (flags & EIO_READDIR_DENTS)
1169 req->int1 |= EIO_READDIR_CUSTOM2;
1170
1171 REQ_SEND;
1172}
1173
1174void
828aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1175aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
829 ALIAS: 1176 ALIAS:
830 aio_unlink = EIO_UNLINK 1177 aio_unlink = EIO_UNLINK
831 aio_rmdir = EIO_RMDIR 1178 aio_rmdir = EIO_RMDIR
832 aio_readdir = EIO_READDIR 1179 aio_readdir = EIO_READDIR
874 1221
875 REQ_SEND; 1222 REQ_SEND;
876} 1223}
877 1224
878void 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
879aio_busy (double delay, SV *callback=&PL_sv_undef) 1300aio_busy (double delay, SV *callback=&PL_sv_undef)
880 PPCODE: 1301 PPCODE:
881{ 1302{
882 dREQ; 1303 dREQ;
883 1304
887 REQ_SEND; 1308 REQ_SEND;
888} 1309}
889 1310
890void 1311void
891aio_group (SV *callback=&PL_sv_undef) 1312aio_group (SV *callback=&PL_sv_undef)
892 PROTOTYPE: ;$
893 PPCODE: 1313 PPCODE:
894{ 1314{
895 dREQ; 1315 dREQ;
896 1316
897 req->type = EIO_GROUP; 1317 req->type = EIO_GROUP;
898 1318
899 eio_submit (req); 1319 req_submit (req);
900 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1320 XPUSHs (req_sv (req, aio_grp_stash));
901} 1321}
902 1322
903void 1323void
904aio_nop (SV *callback=&PL_sv_undef) 1324aio_nop (SV *callback=&PL_sv_undef)
905 ALIAS: 1325 ALIAS:
914 REQ_SEND; 1334 REQ_SEND;
915} 1335}
916 1336
917int 1337int
918aioreq_pri (int pri = 0) 1338aioreq_pri (int pri = 0)
919 PROTOTYPE: ;$
920 CODE: 1339 CODE:
921 RETVAL = next_pri; 1340 RETVAL = next_pri;
922 if (items > 0) 1341 if (items > 0)
923 { 1342 {
924 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1343 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
936 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1355 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
937 next_pri = nice; 1356 next_pri = nice;
938 1357
939void 1358void
940flush () 1359flush ()
941 PROTOTYPE:
942 CODE: 1360 CODE:
943 while (eio_nreqs ()) 1361 while (eio_nreqs ())
944 { 1362 {
945 poll_wait (); 1363 poll_wait ();
946 poll_cb (); 1364 poll_cb ();
947 } 1365 }
948 1366
949int 1367int
950poll() 1368poll ()
951 PROTOTYPE:
952 CODE: 1369 CODE:
953 poll_wait (); 1370 poll_wait ();
954 RETVAL = poll_cb (); 1371 RETVAL = poll_cb ();
955 OUTPUT: 1372 OUTPUT:
956 RETVAL 1373 RETVAL
957 1374
958int 1375int
959poll_fileno() 1376poll_fileno ()
960 PROTOTYPE:
961 CODE: 1377 CODE:
962 RETVAL = respipe [0]; 1378 RETVAL = s_epipe_fd (&respipe);
963 OUTPUT: 1379 OUTPUT:
964 RETVAL 1380 RETVAL
965 1381
966int 1382int
967poll_cb(...) 1383poll_cb (...)
968 PROTOTYPE: 1384 PROTOTYPE:
969 CODE: 1385 CODE:
970 RETVAL = poll_cb (); 1386 RETVAL = poll_cb ();
971 OUTPUT: 1387 OUTPUT:
972 RETVAL 1388 RETVAL
973 1389
974void 1390void
975poll_wait() 1391poll_wait ()
976 PROTOTYPE:
977 CODE: 1392 CODE:
978 poll_wait (); 1393 poll_wait ();
979 1394
980int 1395int
981nreqs() 1396nreqs ()
982 PROTOTYPE:
983 CODE: 1397 CODE:
984 RETVAL = eio_nreqs (); 1398 RETVAL = eio_nreqs ();
985 OUTPUT: 1399 OUTPUT:
986 RETVAL 1400 RETVAL
987 1401
988int 1402int
989nready() 1403nready ()
990 PROTOTYPE:
991 CODE: 1404 CODE:
992 RETVAL = eio_nready (); 1405 RETVAL = eio_nready ();
993 OUTPUT: 1406 OUTPUT:
994 RETVAL 1407 RETVAL
995 1408
996int 1409int
997npending() 1410npending ()
998 PROTOTYPE:
999 CODE: 1411 CODE:
1000 RETVAL = eio_npending (); 1412 RETVAL = eio_npending ();
1001 OUTPUT: 1413 OUTPUT:
1002 RETVAL 1414 RETVAL
1003 1415
1004int 1416int
1005nthreads() 1417nthreads ()
1006 PROTOTYPE:
1007 CODE: 1418 CODE:
1008 RETVAL = eio_nthreads (); 1419 RETVAL = eio_nthreads ();
1009 OUTPUT: 1420 OUTPUT:
1010 RETVAL 1421 RETVAL
1011 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
1012void _on_next_submit (SV *cb) 1545void _on_next_submit (SV *cb)
1013 CODE: 1546 CODE:
1014 SvREFCNT_dec (on_next_submit); 1547 SvREFCNT_dec (on_next_submit);
1015 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; 1548 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1016 1549
1023 CODE: 1556 CODE:
1024 eio_cancel (req); 1557 eio_cancel (req);
1025 1558
1026void 1559void
1027cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1560cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1028 CODE: 1561 PPCODE:
1562{
1563 if (GIMME_V != G_VOID)
1564 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1565
1566 if (items > 1)
1567 {
1568 SV *cb_cv =get_cb (callback);
1569
1029 SvREFCNT_dec (req->callback); 1570 SvREFCNT_dec (req->callback);
1030 req->callback = newSVsv (callback); 1571 req->callback = SvREFCNT_inc (cb_cv);
1572 }
1573}
1031 1574
1032MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1575MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1033 1576
1034void 1577void
1035add (aio_req grp, ...) 1578add (aio_req grp, ...)
1067 AV *av; 1610 AV *av;
1068 1611
1069 grp->errorno = errno; 1612 grp->errorno = errno;
1070 1613
1071 av = newAV (); 1614 av = newAV ();
1615 av_extend (av, items - 1);
1072 1616
1073 for (i = 1; i < items; ++i ) 1617 for (i = 1; i < items; ++i )
1074 av_push (av, newSVsv (ST (i))); 1618 av_push (av, newSVsv (ST (i)));
1075 1619
1076 SvREFCNT_dec (grp->sv1); 1620 SvREFCNT_dec (grp->sv1);
1090void 1634void
1091feed (aio_req grp, SV *callback=&PL_sv_undef) 1635feed (aio_req grp, SV *callback=&PL_sv_undef)
1092 CODE: 1636 CODE:
1093{ 1637{
1094 SvREFCNT_dec (grp->sv2); 1638 SvREFCNT_dec (grp->sv2);
1095 grp->sv2 = newSVsv (callback); 1639 grp->sv2 = newSVsv (callback);
1640 grp->feed = aio_grp_feed;
1096 1641
1097 if (grp->int2 <= 0) 1642 if (grp->int2 <= 0)
1098 grp->int2 = 2; 1643 grp->int2 = 2;
1099 1644
1100 eio_grp_limit (grp, grp->int2); 1645 eio_grp_limit (grp, grp->int2);

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