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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.122 by root, Tue May 13 19:35:16 2008 UTC vs.
Revision 1.172 by root, Sun Sep 12 03:36:27 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
65# include <signal.h> 72# include <signal.h>
66# define EIO_STRUCT_DIRENT struct dirent 73# define EIO_STRUCT_DIRENT struct dirent
67 74
68#endif 75#endif
69 76
77/* perl stupidly overrides readdir and maybe others */
78/* with thread-unsafe versions, imagine that :( */
79#undef readdir
80#undef opendir
81#undef closedir
82
70#define EIO_STRUCT_STAT Stat_t 83#define EIO_STRUCT_STAT Stat_t
71 84
72/* use NV for 32 bit perls as it allows larger offsets */ 85/* use NV for 32 bit perls as it allows larger offsets */
73#if IVSIZE >= 8 86#if IVSIZE >= 8
87# define VAL64 IV
74# define SvVAL64 SvIV 88# define SvVAL64 SvIV
89# define newSVval64 newSViv
75#else 90#else
91# define VAL64 NV
76# define SvVAL64 SvNV 92# define SvVAL64 SvNV
93# define newSVval64 newSVnv
77#endif 94#endif
78 95
79static 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
80typedef 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 */
81 112
82#define AIO_REQ_KLASS "IO::AIO::REQ" 113static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
83#define AIO_GRP_KLASS "IO::AIO::GRP"
84 114
85#define EIO_REQ_MEMBERS \ 115#define EIO_REQ_MEMBERS \
86 SV *callback; \ 116 SV *callback; \
87 SV *sv1, *sv2; \ 117 SV *sv1, *sv2; \
88 STRLEN stroffset; \ 118 STRLEN stroffset; \
90 120
91#define EIO_NO_WRAPPERS 1 121#define EIO_NO_WRAPPERS 1
92 122
93#include "libeio/eio.h" 123#include "libeio/eio.h"
94 124
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
95static int req_invoke (eio_req *req); 241static int req_invoke (eio_req *req);
96#define EIO_FINISH(req) req_invoke (req) 242#define EIO_FINISH(req) req_invoke (req)
97static void aio_grp_feed (eio_req *grp);
98#define EIO_FEED(req) aio_grp_feed (req)
99static void req_destroy (eio_req *grp); 243static void req_destroy (eio_req *grp);
100#define EIO_DESTROY(req) req_destroy (req) 244#define EIO_DESTROY(req) req_destroy (req)
101 245
102enum { 246enum {
103 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ 247 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
110 254
111static SV *on_next_submit; 255static SV *on_next_submit;
112static int next_pri = EIO_PRI_DEFAULT; 256static int next_pri = EIO_PRI_DEFAULT;
113static int max_outstanding; 257static int max_outstanding;
114 258
115static int respipe_osf [2], respipe [2] = { -1, -1 }; 259static s_epipe respipe;
116 260
117static void req_destroy (aio_req req); 261static void req_destroy (aio_req req);
118static void req_cancel (aio_req req); 262static void req_cancel (aio_req req);
119 263
120static void want_poll (void) 264static void want_poll (void)
121{ 265{
122 /* write a dummy byte to the pipe so fh becomes ready */ 266 /* write a dummy byte to the pipe so fh becomes ready */
123 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1); 267 s_epipe_signal (&respipe);
124} 268}
125 269
126static void done_poll (void) 270static void done_poll (void)
127{ 271{
128 /* read any signals sent by the worker threads */ 272 /* read any signals sent by the worker threads */
129 char buf [4]; 273 s_epipe_drain (&respipe);
130 while (respipe_read (respipe [0], buf, 4) == 4)
131 ;
132} 274}
133 275
134/* must be called at most once */ 276/* must be called at most once */
135static SV *req_sv (aio_req req, const char *klass) 277static SV *req_sv (aio_req req, HV *stash)
136{ 278{
137 if (!req->self) 279 if (!req->self)
138 { 280 {
139 req->self = (SV *)newHV (); 281 req->self = (SV *)newHV ();
140 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 282 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
141 } 283 }
142 284
143 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 285 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
144} 286}
145 287
146static aio_req SvAIO_REQ (SV *sv) 288static aio_req SvAIO_REQ (SV *sv)
147{ 289{
148 MAGIC *mg; 290 MAGIC *mg;
149 291
150 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")))
151 croak ("object of class " AIO_REQ_KLASS " expected"); 296 croak ("object of class IO::AIO::REQ expected");
152 297
153 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 298 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
154 299
155 return mg ? (aio_req)mg->mg_ptr : 0; 300 return mg ? (aio_req)mg->mg_ptr : 0;
156} 301}
162 dSP; 307 dSP;
163 308
164 ENTER; 309 ENTER;
165 SAVETMPS; 310 SAVETMPS;
166 PUSHMARK (SP); 311 PUSHMARK (SP);
167 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 312 XPUSHs (req_sv (grp, aio_grp_stash));
168 PUTBACK; 313 PUTBACK;
169 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 314 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
170 SPAGAIN; 315 SPAGAIN;
171 FREETMPS; 316 FREETMPS;
172 LEAVE; 317 LEAVE;
175 320
176static void req_submit (eio_req *req) 321static void req_submit (eio_req *req)
177{ 322{
178 eio_submit (req); 323 eio_submit (req);
179 324
180 if (on_next_submit) 325 if (expect_false (on_next_submit))
181 { 326 {
182 dSP; 327 dSP;
183 SV *cb = sv_2mortal (on_next_submit); 328 SV *cb = sv_2mortal (on_next_submit);
184 329
185 on_next_submit = 0; 330 on_next_submit = 0;
190 } 335 }
191} 336}
192 337
193static int req_invoke (eio_req *req) 338static int req_invoke (eio_req *req)
194{ 339{
195 dSP;
196
197 if (req->flags & FLAG_SV2_RO_OFF) 340 if (req->flags & FLAG_SV2_RO_OFF)
198 SvREADONLY_off (req->sv2); 341 SvREADONLY_off (req->sv2);
199 342
200 if (!EIO_CANCELLED (req) && SvOK (req->callback)) 343 if (!EIO_CANCELLED (req) && req->callback)
201 { 344 {
345 dSP;
346 static SV *sv_result_cache; /* caches the result integer SV */
347 SV *sv_result;
348
202 ENTER; 349 ENTER;
203 SAVETMPS; 350 SAVETMPS;
204 PUSHMARK (SP); 351 PUSHMARK (SP);
205 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 }
206 365
207 switch (req->type) 366 switch (req->type)
208 { 367 {
209 case EIO_READDIR: 368 case EIO_READDIR:
210 { 369 {
211 SV *rv = &PL_sv_undef; 370 SV *rv = &PL_sv_undef;
212 371
213 if (req->result >= 0) 372 if (req->result >= 0)
214 { 373 {
215 int i; 374 int i;
216 char *buf = req->ptr2; 375 char *names = (char *)req->ptr2;
376 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
217 AV *av = newAV (); 377 AV *av = newAV ();
218 378
219 av_extend (av, req->result - 1); 379 av_extend (av, req->result - 1);
220 380
221 for (i = 0; i < req->result; ++i) 381 for (i = 0; i < req->result; ++i)
222 { 382 {
223 SV *sv = newSVpv (buf, 0); 383 if (req->int1 & EIO_READDIR_DENTS)
384 {
385 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
224 386
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
225 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);
226 buf += SvCUR (sv) + 1; 415 names += SvCUR (name) + 1;
416 }
227 } 417 }
228 418
229 rv = sv_2mortal (newRV_noinc ((SV *)av)); 419 rv = sv_2mortal (newRV_noinc ((SV *)av));
230 } 420 }
231 421
232 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))));
233 } 426 }
234 break; 427 break;
235 428
236 case EIO_OPEN: 429 case EIO_OPEN:
237 { 430 {
243 GV *gv = (GV *)sv_newmortal (); 436 GV *gv = (GV *)sv_newmortal ();
244 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 437 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
245 char sym [64]; 438 char sym [64];
246 int symlen; 439 int symlen;
247 440
248 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 441 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
249 gv_init (gv, stash, sym, symlen, 0); 442 gv_init (gv, aio_stash, sym, symlen, 0);
250 443
251 symlen = snprintf ( 444 symlen = snprintf (
252 sym, 445 sym,
253 sizeof (sym), 446 sizeof (sym),
254 "%s&=%d", 447 "%s&=%d",
255 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", 448 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
256 req->result 449 (int)req->result
257 ); 450 );
258 451
259 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 452 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
260 fh = (SV *)gv; 453 fh = (SV *)gv;
261 } 454 }
262 455
263 PUSHs (fh); 456 PUSHs (fh);
264 } 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
265 break; 488 break;
266 489
267 case EIO_GROUP: 490 case EIO_GROUP:
268 req->int1 = 2; /* mark group as finished */ 491 req->int1 = 2; /* mark group as finished */
269 492
291 case EIO_LSTAT: 514 case EIO_LSTAT:
292 case EIO_FSTAT: 515 case EIO_FSTAT:
293 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 516 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
294 PL_laststatval = req->result; 517 PL_laststatval = req->result;
295 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 518 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
296 PUSHs (sv_2mortal (newSViv (req->result))); 519 PUSHs (sv_result);
297 break; 520 break;
298 521
299 case EIO_READ: 522 case EIO_READ:
523 {
300 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));
301 *SvEND (req->sv2) = 0; 525 *SvEND (req->sv2) = 0;
302 PUSHs (sv_2mortal (newSViv (req->result))); 526 SvPOK_only (req->sv2);
527 SvSETMAGIC (req->sv2);
528 PUSHs (sv_result);
529 }
303 break; 530 break;
304 531
305 case EIO_DUP2: 532 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
306 if (req->result > 0) 533 if (req->result > 0)
307 req->result = 0; 534 SvIV_set (sv_result, 0);
308 /* FALLTHROUGH */ 535 /* FALLTHROUGH */
309 536
310 default: 537 default:
311 PUSHs (sv_2mortal (newSViv (req->result))); 538 PUSHs (sv_result);
312 break; 539 break;
313 } 540 }
314 541
315 errno = req->errorno; 542 errno = req->errorno;
316 543
317 PUTBACK; 544 PUTBACK;
318 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 545 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
319 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;
320 552
321 FREETMPS; 553 FREETMPS;
322 LEAVE; 554 LEAVE;
323 555
324 PUTBACK; 556 PUTBACK;
353 grp->sv2 = 0; 585 grp->sv2 = 0;
354 586
355 eio_grp_cancel (grp); 587 eio_grp_cancel (grp);
356} 588}
357 589
358#ifdef USE_SOCKETS_AS_HANDLES
359# define TO_SOCKET(x) (win32_get_osfhandle (x))
360#else
361# define TO_SOCKET(x) (x)
362#endif
363
364static void 590static void
365create_respipe (void) 591create_respipe (void)
366{ 592{
367 int old_readfd = respipe [0];
368
369 if (respipe [1] >= 0)
370 respipe_close (TO_SOCKET (respipe [1]));
371
372#ifdef _WIN32
373 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
374#else
375 if (pipe (respipe)) 593 if (s_epipe_renew (&respipe))
376#endif
377 croak ("unable to initialize result pipe"); 594 croak ("IO::AIO: unable to initialize result pipe");
378
379 if (old_readfd >= 0)
380 {
381 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
382 croak ("unable to initialize result pipe(2)");
383
384 respipe_close (respipe [0]);
385 respipe [0] = old_readfd;
386 }
387
388#ifdef _WIN32
389 int arg = 1;
390 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
391 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
392#else
393 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
394 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
395#endif
396 croak ("unable to initialize result pipe(3)");
397
398 respipe_osf [0] = TO_SOCKET (respipe [0]);
399 respipe_osf [1] = TO_SOCKET (respipe [1]);
400} 595}
401 596
402static void poll_wait (void) 597static void poll_wait (void)
403{ 598{
404 fd_set rfd;
405
406 while (eio_nreqs ()) 599 while (eio_nreqs ())
407 { 600 {
408 int size; 601 int size;
409 602
410 X_LOCK (reslock); 603 X_LOCK (reslock);
412 X_UNLOCK (reslock); 605 X_UNLOCK (reslock);
413 606
414 if (size) 607 if (size)
415 return; 608 return;
416 609
417 maybe_start_thread (); 610 etp_maybe_start_thread ();
418 611
419 FD_ZERO (&rfd); 612 s_epipe_wait (&respipe);
420 FD_SET (respipe [0], &rfd);
421
422 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
423 } 613 }
424} 614}
425 615
426static int poll_cb (void) 616static int poll_cb (void)
427{ 617{
428 int res; 618 for (;;)
429
430 do
431 { 619 {
432 res = eio_poll (); 620 int res = eio_poll ();
433 621
434 if (res > 0) 622 if (res > 0)
435 croak (0); 623 croak (0);
624
625 if (!max_outstanding || max_outstanding > eio_nreqs ())
626 return res;
627
628 poll_wait ();
436 } 629 }
437 while (max_outstanding && max_outstanding <= eio_nreqs ());
438
439 return res;
440} 630}
441 631
442static void atfork_child (void) 632static void atfork_child (void)
443{ 633{
444 create_respipe (); 634 create_respipe ();
445} 635}
446 636
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
447#define dREQ \ 681#define dREQ \
682 SV *cb_cv; \
448 aio_req req; \ 683 aio_req req; \
449 int req_pri = next_pri; \ 684 int req_pri = next_pri; \
450 next_pri = EIO_PRI_DEFAULT; \ 685 next_pri = EIO_PRI_DEFAULT; \
451 \ 686 \
452 if (SvOK (callback) && !SvROK (callback)) \ 687 cb_cv = get_cb (callback); \
453 croak ("callback must be undef or of reference type"); \
454 \ 688 \
455 Newz (0, req, 1, eio_req); \ 689 Newz (0, req, 1, eio_req); \
456 if (!req) \ 690 if (!req) \
457 croak ("out of memory during eio_req allocation"); \ 691 croak ("out of memory during eio_req allocation"); \
458 \ 692 \
459 req->callback = newSVsv (callback); \ 693 req->callback = SvREFCNT_inc (cb_cv); \
460 req->pri = req_pri 694 req->pri = req_pri
461 695
462#define REQ_SEND \ 696#define REQ_SEND \
697 PUTBACK; \
463 req_submit (req); \ 698 req_submit (req); \
699 SPAGAIN; \
464 \ 700 \
465 if (GIMME_V != G_VOID) \ 701 if (GIMME_V != G_VOID) \
466 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 702 XPUSHs (req_sv (req, aio_req_stash));
467 703
468MODULE = IO::AIO PACKAGE = IO::AIO 704MODULE = IO::AIO PACKAGE = IO::AIO
469 705
470PROTOTYPES: ENABLE 706PROTOTYPES: ENABLE
471 707
472BOOT: 708BOOT:
473{ 709{
474 stash = gv_stashpv ("IO::AIO", 1); 710 static const struct {
475 711 const char *name;
476 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 712 IV iv;
477 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 713 } *civ, const_iv[] = {
478 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 714# define const_niv(name, value) { # name, (IV) value },
479 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); 715# define const_iv(name) { # name, (IV) name },
480 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)
481#ifndef _WIN32 726#ifndef _WIN32
482 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); 727 const_iv (S_IFIFO)
483#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)
484 735
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
485 create_respipe (); 810 create_respipe ();
486 811
487 if (eio_init (want_poll, done_poll) < 0) 812 if (eio_init (want_poll, done_poll) < 0)
488 croak ("IO::AIO: unable to initialise eio library"); 813 croak ("IO::AIO: unable to initialise eio library");
489 814
490 /* atfork child called in fifo order, so before eio's handler */ 815 /* atfork child called in fifo order, so before eio's handler */
491 X_THREAD_ATFORK (0, 0, atfork_child); 816 X_THREAD_ATFORK (0, 0, atfork_child);
492} 817}
493 818
494void 819void
495max_poll_reqs (int nreqs) 820max_poll_reqs (int nreqs)
496 PROTOTYPE: $ 821 PROTOTYPE: $
527 CODE: 852 CODE:
528 max_outstanding = maxreqs; 853 max_outstanding = maxreqs;
529 854
530void 855void
531aio_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)
532 PROTOTYPE: $$$;$
533 PPCODE: 857 PPCODE:
534{ 858{
535 dREQ; 859 dREQ;
536 860
537 req->type = EIO_OPEN; 861 req->type = EIO_OPEN;
543 REQ_SEND; 867 REQ_SEND;
544} 868}
545 869
546void 870void
547aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 871aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
548 PROTOTYPE: $;$
549 ALIAS: 872 ALIAS:
550 aio_fsync = EIO_FSYNC 873 aio_fsync = EIO_FSYNC
551 aio_fdatasync = EIO_FDATASYNC 874 aio_fdatasync = EIO_FDATASYNC
552 PPCODE: 875 PPCODE:
553{ 876{
877 int fd = s_fileno_croak (fh, 0);
554 dREQ; 878 dREQ;
555 879
556 req->type = ix; 880 req->type = ix;
557 req->sv1 = newSVsv (fh); 881 req->sv1 = newSVsv (fh);
558 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 882 req->int1 = fd;
559 883
560 REQ_SEND (req); 884 REQ_SEND (req);
561} 885}
562 886
563void 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
564aio_close (SV *fh, SV *callback=&PL_sv_undef) 905aio_close (SV *fh, SV *callback=&PL_sv_undef)
565 PROTOTYPE: $;$
566 PPCODE: 906 PPCODE:
567{ 907{
568 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);
569 dREQ; 910 dREQ;
570 911
571 if (close_pipe < 0) 912 if (close_pipe < 0)
572 { 913 {
573 int pipefd [2]; 914 int pipefd [2];
581 } 922 }
582 923
583 req->type = EIO_DUP2; 924 req->type = EIO_DUP2;
584 req->int1 = close_pipe; 925 req->int1 = close_pipe;
585 req->sv2 = newSVsv (fh); 926 req->sv2 = newSVsv (fh);
586 req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh))); 927 req->int2 = fd;
587 928
588 REQ_SEND (req); 929 REQ_SEND (req);
589} 930}
590 931
591void 932void
592aio_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)
593 ALIAS: 934 ALIAS:
594 aio_read = EIO_READ 935 aio_read = EIO_READ
595 aio_write = EIO_WRITE 936 aio_write = EIO_WRITE
596 PROTOTYPE: $$$$$;$
597 PPCODE: 937 PPCODE:
598{ 938{
599 STRLEN svlen; 939 STRLEN svlen;
940 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
600 char *svptr = SvPVbyte (data, svlen); 941 char *svptr = SvPVbyte (data, svlen);
601 UV len = SvUV (length); 942 UV len = SvUV (length);
602
603 SvUPGRADE (data, SVt_PV);
604 SvPOK_on (data);
605 943
606 if (dataoffset < 0) 944 if (dataoffset < 0)
607 dataoffset += svlen; 945 dataoffset += svlen;
608 946
609 if (dataoffset < 0 || dataoffset > svlen) 947 if (dataoffset < 0 || dataoffset > svlen)
615 if (!SvOK (length) || len + dataoffset > svlen) 953 if (!SvOK (length) || len + dataoffset > svlen)
616 len = svlen - dataoffset; 954 len = svlen - dataoffset;
617 } 955 }
618 else 956 else
619 { 957 {
620 /* read: grow scalar as necessary */ 958 /* read: check type and grow scalar as necessary */
959 SvUPGRADE (data, SVt_PV);
621 svptr = SvGROW (data, len + dataoffset + 1); 960 svptr = SvGROW (data, len + dataoffset + 1);
622 } 961 }
623 962
624 if (len < 0)
625 croak ("length must not be negative");
626
627 { 963 {
628 dREQ; 964 dREQ;
629 965
630 req->type = ix; 966 req->type = ix;
631 req->sv1 = newSVsv (fh); 967 req->sv1 = newSVsv (fh);
632 req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh)) 968 req->int1 = fd;
633 : IoOFP (sv_2io (fh)));
634 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 969 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
635 req->size = len; 970 req->size = len;
636 req->sv2 = SvREFCNT_inc (data); 971 req->sv2 = SvREFCNT_inc (data);
637 req->ptr2 = (char *)svptr + dataoffset; 972 req->ptr2 = (char *)svptr + dataoffset;
638 req->stroffset = dataoffset; 973 req->stroffset = dataoffset;
647 } 982 }
648} 983}
649 984
650void 985void
651aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 986aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
652 PROTOTYPE: $$;$
653 PPCODE: 987 PPCODE:
654{ 988{
655 SV *data; 989 SV *data;
656 dREQ; 990 dREQ;
657 991
661 995
662 REQ_SEND; 996 REQ_SEND;
663} 997}
664 998
665void 999void
666aio_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)
667 PROTOTYPE: $$$$;$
668 PPCODE: 1001 PPCODE:
669{ 1002{
1003 int ifd = s_fileno_croak (in_fh , 0);
1004 int ofd = s_fileno_croak (out_fh, 1);
670 dREQ; 1005 dREQ;
671 1006
672 req->type = EIO_SENDFILE; 1007 req->type = EIO_SENDFILE;
673 req->sv1 = newSVsv (out_fh); 1008 req->sv1 = newSVsv (out_fh);
674 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1009 req->int1 = ofd;
675 req->sv2 = newSVsv (in_fh); 1010 req->sv2 = newSVsv (in_fh);
676 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1011 req->int2 = ifd;
677 req->offs = SvVAL64 (in_offset); 1012 req->offs = in_offset;
678 req->size = length; 1013 req->size = length;
679 1014
680 REQ_SEND; 1015 REQ_SEND;
681} 1016}
682 1017
683void 1018void
684aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1019aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
685 PROTOTYPE: $$$;$
686 PPCODE: 1020 PPCODE:
687{ 1021{
1022 int fd = s_fileno_croak (fh, 0);
688 dREQ; 1023 dREQ;
689 1024
690 req->type = EIO_READAHEAD; 1025 req->type = EIO_READAHEAD;
691 req->sv1 = newSVsv (fh); 1026 req->sv1 = newSVsv (fh);
692 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1027 req->int1 = fd;
693 req->offs = SvVAL64 (offset); 1028 req->offs = offset;
694 req->size = length; 1029 req->size = length;
695 1030
696 REQ_SEND; 1031 REQ_SEND;
697} 1032}
698 1033
699void 1034void
700aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1035aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
701 ALIAS: 1036 ALIAS:
702 aio_stat = EIO_STAT 1037 aio_stat = EIO_STAT
703 aio_lstat = EIO_LSTAT 1038 aio_lstat = EIO_LSTAT
1039 aio_statvfs = EIO_STATVFS
704 PPCODE: 1040 PPCODE:
705{ 1041{
706 dREQ; 1042 dREQ;
707 1043
708 req->sv1 = newSVsv (fh_or_path); 1044 req->sv1 = newSVsv (fh_or_path);
712 req->type = ix; 1048 req->type = ix;
713 req->ptr1 = SvPVbyte_nolen (req->sv1); 1049 req->ptr1 = SvPVbyte_nolen (req->sv1);
714 } 1050 }
715 else 1051 else
716 { 1052 {
717 req->type = EIO_FSTAT; 1053 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
718 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1054 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
719 } 1055 }
720 1056
721 REQ_SEND; 1057 REQ_SEND;
722} 1058}
817 1153
818 REQ_SEND; 1154 REQ_SEND;
819} 1155}
820 1156
821void 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
822aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1175aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
823 ALIAS: 1176 ALIAS:
824 aio_unlink = EIO_UNLINK 1177 aio_unlink = EIO_UNLINK
825 aio_rmdir = EIO_RMDIR 1178 aio_rmdir = EIO_RMDIR
826 aio_readdir = EIO_READDIR 1179 aio_readdir = EIO_READDIR
868 1221
869 REQ_SEND; 1222 REQ_SEND;
870} 1223}
871 1224
872void 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
1263 STRLEN svlen;
1264 char *svptr = SvPVbyte (data, svlen);
1265 UV len = SvUV (length);
1266
1267 if (offset < 0)
1268 offset += svlen;
1269
1270 if (offset < 0 || offset > svlen)
1271 croak ("offset outside of scalar");
1272
1273 if (!SvOK (length) || len + offset > svlen)
1274 len = svlen - offset;
1275
1276 {
1277 dREQ;
1278
1279 req->type = EIO_MLOCK;
1280 req->sv2 = SvREFCNT_inc (data);
1281 req->ptr2 = (char *)svptr + offset;
1282 req->size = len;
1283
1284 REQ_SEND;
1285 }
1286}
1287
1288void
1289aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1290 PPCODE:
1291{
1292 dREQ;
1293
1294 req->type = EIO_MLOCKALL;
1295 req->int1 = flags;
1296
1297 REQ_SEND;
1298}
1299
1300void
873aio_busy (double delay, SV *callback=&PL_sv_undef) 1301aio_busy (double delay, SV *callback=&PL_sv_undef)
874 PPCODE: 1302 PPCODE:
875{ 1303{
876 dREQ; 1304 dREQ;
877 1305
881 REQ_SEND; 1309 REQ_SEND;
882} 1310}
883 1311
884void 1312void
885aio_group (SV *callback=&PL_sv_undef) 1313aio_group (SV *callback=&PL_sv_undef)
886 PROTOTYPE: ;$
887 PPCODE: 1314 PPCODE:
888{ 1315{
889 dREQ; 1316 dREQ;
890 1317
891 req->type = EIO_GROUP; 1318 req->type = EIO_GROUP;
892 1319
893 eio_submit (req); 1320 req_submit (req);
894 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1321 XPUSHs (req_sv (req, aio_grp_stash));
895} 1322}
896 1323
897void 1324void
898aio_nop (SV *callback=&PL_sv_undef) 1325aio_nop (SV *callback=&PL_sv_undef)
899 ALIAS: 1326 ALIAS:
908 REQ_SEND; 1335 REQ_SEND;
909} 1336}
910 1337
911int 1338int
912aioreq_pri (int pri = 0) 1339aioreq_pri (int pri = 0)
913 PROTOTYPE: ;$
914 CODE: 1340 CODE:
915 RETVAL = next_pri; 1341 RETVAL = next_pri;
916 if (items > 0) 1342 if (items > 0)
917 { 1343 {
918 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1344 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
930 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1356 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
931 next_pri = nice; 1357 next_pri = nice;
932 1358
933void 1359void
934flush () 1360flush ()
935 PROTOTYPE:
936 CODE: 1361 CODE:
937 while (eio_nreqs ()) 1362 while (eio_nreqs ())
938 { 1363 {
939 poll_wait (); 1364 poll_wait ();
940 poll_cb (); 1365 poll_cb ();
941 } 1366 }
942 1367
943int 1368int
944poll() 1369poll ()
945 PROTOTYPE:
946 CODE: 1370 CODE:
947 poll_wait (); 1371 poll_wait ();
948 RETVAL = poll_cb (); 1372 RETVAL = poll_cb ();
949 OUTPUT: 1373 OUTPUT:
950 RETVAL 1374 RETVAL
951 1375
952int 1376int
953poll_fileno() 1377poll_fileno ()
954 PROTOTYPE:
955 CODE: 1378 CODE:
956 RETVAL = respipe [0]; 1379 RETVAL = s_epipe_fd (&respipe);
957 OUTPUT: 1380 OUTPUT:
958 RETVAL 1381 RETVAL
959 1382
960int 1383int
961poll_cb(...) 1384poll_cb (...)
962 PROTOTYPE: 1385 PROTOTYPE:
963 CODE: 1386 CODE:
964 RETVAL = poll_cb (); 1387 RETVAL = poll_cb ();
965 OUTPUT: 1388 OUTPUT:
966 RETVAL 1389 RETVAL
967 1390
968void 1391void
969poll_wait() 1392poll_wait ()
970 PROTOTYPE:
971 CODE: 1393 CODE:
972 poll_wait (); 1394 poll_wait ();
973 1395
974int 1396int
975nreqs() 1397nreqs ()
976 PROTOTYPE:
977 CODE: 1398 CODE:
978 RETVAL = eio_nreqs (); 1399 RETVAL = eio_nreqs ();
979 OUTPUT: 1400 OUTPUT:
980 RETVAL 1401 RETVAL
981 1402
982int 1403int
983nready() 1404nready ()
984 PROTOTYPE:
985 CODE: 1405 CODE:
986 RETVAL = eio_nready (); 1406 RETVAL = eio_nready ();
987 OUTPUT: 1407 OUTPUT:
988 RETVAL 1408 RETVAL
989 1409
990int 1410int
991npending() 1411npending ()
992 PROTOTYPE:
993 CODE: 1412 CODE:
994 RETVAL = eio_npending (); 1413 RETVAL = eio_npending ();
995 OUTPUT: 1414 OUTPUT:
996 RETVAL 1415 RETVAL
997 1416
998int 1417int
999nthreads() 1418nthreads ()
1000 PROTOTYPE:
1001 CODE: 1419 CODE:
1002 RETVAL = eio_nthreads (); 1420 RETVAL = eio_nthreads ();
1003 OUTPUT: 1421 OUTPUT:
1004 RETVAL 1422 RETVAL
1005 1423
1424int
1425fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1426 CODE:
1427 RETVAL = posix_fadvise (fh, offset, length, advice);
1428 OUTPUT:
1429 RETVAL
1430
1431ssize_t
1432sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1433 CODE:
1434 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1435 OUTPUT:
1436 RETVAL
1437
1438void
1439mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1440 PPCODE:
1441 sv_unmagic (scalar, MMAP_MAGIC);
1442{
1443 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1444 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1445 if (addr == (void *)-1)
1446 XSRETURN_NO;
1447
1448 sv_force_normal (scalar);
1449
1450 /* we store the length in mg_obj, as namlen is I32 :/ */
1451 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1452 ->mg_obj = (SV *)length;
1453
1454 SvUPGRADE (scalar, SVt_PV); /* nop... */
1455
1456 if (!(prot & PROT_WRITE))
1457 SvREADONLY_on (scalar);
1458
1459 if (SvLEN (scalar))
1460 Safefree (SvPVX (scalar));
1461
1462 SvPVX (scalar) = (char *)addr;
1463 SvCUR_set (scalar, length);
1464 SvLEN_set (scalar, 0);
1465 SvPOK_only (scalar);
1466
1467 XSRETURN_YES;
1468}
1469
1470void
1471munmap (SV *scalar)
1472 CODE:
1473 sv_unmagic (scalar, MMAP_MAGIC);
1474
1475int
1476madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1477 ALIAS:
1478 mprotect = 1
1479 CODE:
1480{
1481 STRLEN svlen;
1482 void *addr = SvPVbyte (scalar, svlen);
1483 size_t len = SvUV (length);
1484
1485 if (offset < 0)
1486 offset += svlen;
1487
1488 if (offset < 0 || offset > svlen)
1489 croak ("offset outside of scalar");
1490
1491 if (!SvOK (length) || len + offset > svlen)
1492 len = svlen - offset;
1493
1494 addr = (void *)(((intptr_t)addr) + offset);
1495 eio_page_align (&addr, &len);
1496
1497 switch (ix)
1498 {
1499 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1500 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1501 }
1502}
1503 OUTPUT:
1504 RETVAL
1505
1506int
1507munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1508 CODE:
1509{
1510 STRLEN svlen;
1511 void *addr = SvPVbyte (scalar, svlen);
1512 size_t len = SvUV (length);
1513
1514 if (offset < 0)
1515 offset += svlen;
1516
1517 if (offset < 0 || offset > svlen)
1518 croak ("offset outside of scalar");
1519
1520 if (!SvOK (length) || len + offset > svlen)
1521 len = svlen - offset;
1522
1523 addr = (void *)(((intptr_t)addr) + offset);
1524 eio_page_align (&addr, &len);
1525#if _POSIX_MEMLOCK
1526 RETVAL = munlock (addr, len);
1527#else
1528 RETVAL = ((errno = ENOSYS), -1);
1529#endif
1530}
1531 OUTPUT:
1532 RETVAL
1533
1534int
1535munlockall ()
1536 CODE:
1537#if _POSIX_MEMLOCK
1538 munlockall ();
1539#else
1540 RETVAL = -1;
1541 errno = ENOSYS;
1542#endif
1543 OUTPUT:
1544 RETVAL
1545
1006void _on_next_submit (SV *cb) 1546void _on_next_submit (SV *cb)
1007 CODE: 1547 CODE:
1008 SvREFCNT_dec (on_next_submit); 1548 SvREFCNT_dec (on_next_submit);
1009 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; 1549 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1010 1550
1017 CODE: 1557 CODE:
1018 eio_cancel (req); 1558 eio_cancel (req);
1019 1559
1020void 1560void
1021cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1561cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1022 CODE: 1562 PPCODE:
1563{
1564 if (GIMME_V != G_VOID)
1565 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1566
1567 if (items > 1)
1568 {
1569 SV *cb_cv =get_cb (callback);
1570
1023 SvREFCNT_dec (req->callback); 1571 SvREFCNT_dec (req->callback);
1024 req->callback = newSVsv (callback); 1572 req->callback = SvREFCNT_inc (cb_cv);
1573 }
1574}
1025 1575
1026MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1576MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1027 1577
1028void 1578void
1029add (aio_req grp, ...) 1579add (aio_req grp, ...)
1061 AV *av; 1611 AV *av;
1062 1612
1063 grp->errorno = errno; 1613 grp->errorno = errno;
1064 1614
1065 av = newAV (); 1615 av = newAV ();
1616 av_extend (av, items - 1);
1066 1617
1067 for (i = 1; i < items; ++i ) 1618 for (i = 1; i < items; ++i )
1068 av_push (av, newSVsv (ST (i))); 1619 av_push (av, newSVsv (ST (i)));
1069 1620
1070 SvREFCNT_dec (grp->sv1); 1621 SvREFCNT_dec (grp->sv1);
1084void 1635void
1085feed (aio_req grp, SV *callback=&PL_sv_undef) 1636feed (aio_req grp, SV *callback=&PL_sv_undef)
1086 CODE: 1637 CODE:
1087{ 1638{
1088 SvREFCNT_dec (grp->sv2); 1639 SvREFCNT_dec (grp->sv2);
1089 grp->sv2 = newSVsv (callback); 1640 grp->sv2 = newSVsv (callback);
1641 grp->feed = aio_grp_feed;
1090 1642
1091 if (grp->int2 <= 0) 1643 if (grp->int2 <= 0)
1092 grp->int2 = 2; 1644 grp->int2 = 2;
1093 1645
1094 eio_grp_limit (grp, grp->int2); 1646 eio_grp_limit (grp, grp->int2);

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