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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.124 by root, Thu May 29 03:20:40 2008 UTC vs.
Revision 1.174 by root, Mon Nov 1 22:03:43 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);
414 if (size) 607 if (size)
415 return; 608 return;
416 609
417 etp_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{
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# define PROT_NONE 0
644# define PROT_WRITE 0
645# define MAP_PRIVATE 0
646# define MAP_SHARED 0
647# define MAP_FIXED 0
648#endif
649
650#define MMAP_MAGIC PERL_MAGIC_ext
651
652static int
653mmap_free (pTHX_ SV *sv, MAGIC *mg)
654{
655 int old_errno = errno;
656 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
657 errno = old_errno;
658
659 mg->mg_obj = 0; /* just in case */
660
661 SvREADONLY_off (sv);
662
663 if (SvPVX (sv) != mg->mg_ptr)
664 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
665
666 SvCUR_set (sv, 0);
667 SvPVX (sv) = 0;
668 SvOK_off (sv);
669
670 return 0;
671}
672
673static MGVTBL mmap_vtbl = {
674 0, 0, 0, 0, mmap_free
675};
676
677/*****************************************************************************/
678
679static SV *
680get_cb (SV *cb_sv)
681{
682 SvGETMAGIC (cb_sv);
683 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
684}
685
447#define dREQ \ 686#define dREQ \
687 SV *cb_cv; \
448 aio_req req; \ 688 aio_req req; \
449 int req_pri = next_pri; \ 689 int req_pri = next_pri; \
450 next_pri = EIO_PRI_DEFAULT; \ 690 next_pri = EIO_PRI_DEFAULT; \
451 \ 691 \
452 if (SvOK (callback) && !SvROK (callback)) \ 692 cb_cv = get_cb (callback); \
453 croak ("callback must be undef or of reference type"); \
454 \ 693 \
455 Newz (0, req, 1, eio_req); \ 694 Newz (0, req, 1, eio_req); \
456 if (!req) \ 695 if (!req) \
457 croak ("out of memory during eio_req allocation"); \ 696 croak ("out of memory during eio_req allocation"); \
458 \ 697 \
459 req->callback = newSVsv (callback); \ 698 req->callback = SvREFCNT_inc (cb_cv); \
460 req->pri = req_pri 699 req->pri = req_pri
461 700
462#define REQ_SEND \ 701#define REQ_SEND \
702 PUTBACK; \
463 req_submit (req); \ 703 req_submit (req); \
704 SPAGAIN; \
464 \ 705 \
465 if (GIMME_V != G_VOID) \ 706 if (GIMME_V != G_VOID) \
466 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 707 XPUSHs (req_sv (req, aio_req_stash));
467 708
468MODULE = IO::AIO PACKAGE = IO::AIO 709MODULE = IO::AIO PACKAGE = IO::AIO
469 710
470PROTOTYPES: ENABLE 711PROTOTYPES: ENABLE
471 712
472BOOT: 713BOOT:
473{ 714{
474 stash = gv_stashpv ("IO::AIO", 1); 715 static const struct {
475 716 const char *name;
476 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 717 IV iv;
477 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 718 } *civ, const_iv[] = {
478 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 719# define const_niv(name, value) { # name, (IV) value },
479 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); 720# define const_iv(name) { # name, (IV) name },
480 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); 721# define const_eio(name) { # name, (IV) EIO_ ## name },
722 const_iv (EXDEV)
723 const_iv (ENOSYS)
724 const_iv (O_RDONLY)
725 const_iv (O_WRONLY)
726 const_iv (O_RDWR)
727 const_iv (O_CREAT)
728 const_iv (O_TRUNC)
729 const_iv (O_EXCL)
730 const_iv (O_APPEND)
481#ifndef _WIN32 731#ifndef _WIN32
482 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); 732 const_iv (S_IFIFO)
483#endif 733#endif
734 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
735 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
736 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
737 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
738 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
739 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
484 740
741 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
742 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
743 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
744 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
745 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
746
747 const_iv (ST_RDONLY)
748 const_iv (ST_NOSUID)
749 const_iv (ST_NODEV)
750 const_iv (ST_NOEXEC)
751 const_iv (ST_SYNCHRONOUS)
752 const_iv (ST_MANDLOCK)
753 const_iv (ST_WRITE)
754 const_iv (ST_APPEND)
755 const_iv (ST_IMMUTABLE)
756 const_iv (ST_NOATIME)
757 const_iv (ST_NODIRATIME)
758 const_iv (ST_RELATIME)
759
760 const_iv (PROT_NONE)
761 const_iv (PROT_EXEC)
762 const_iv (PROT_READ)
763 const_iv (PROT_WRITE)
764
765 /*const_iv (MAP_FIXED)*/
766 const_iv (MAP_PRIVATE)
767 const_iv (MAP_SHARED)
768 const_iv (MAP_ANONYMOUS)
769
770 /* linuxish */
771 const_iv (MAP_HUGETLB)
772 const_iv (MAP_LOCKED)
773 const_iv (MAP_NORESERVE)
774 const_iv (MAP_POPULATE)
775 const_iv (MAP_NONBLOCK)
776
777 const_eio (MCL_FUTURE)
778 const_eio (MCL_CURRENT)
779
780 const_eio (MS_ASYNC)
781 const_eio (MS_INVALIDATE)
782 const_eio (MS_SYNC)
783
784 const_eio (MT_MODIFY)
785
786 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
787 const_eio (SYNC_FILE_RANGE_WRITE)
788 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
789
790 const_eio (READDIR_DENTS)
791 const_eio (READDIR_DIRS_FIRST)
792 const_eio (READDIR_STAT_ORDER)
793 const_eio (READDIR_FOUND_UNKNOWN)
794
795 const_eio (DT_UNKNOWN)
796 const_eio (DT_FIFO)
797 const_eio (DT_CHR)
798 const_eio (DT_DIR)
799 const_eio (DT_BLK)
800 const_eio (DT_REG)
801 const_eio (DT_LNK)
802 const_eio (DT_SOCK)
803 const_eio (DT_WHT)
804 };
805
806 aio_stash = gv_stashpv ("IO::AIO" , 1);
807 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
808 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
809
810 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
811 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
812
813 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
814
485 create_respipe (); 815 create_respipe ();
486 816
487 if (eio_init (want_poll, done_poll) < 0) 817 if (eio_init (want_poll, done_poll) < 0)
488 croak ("IO::AIO: unable to initialise eio library"); 818 croak ("IO::AIO: unable to initialise eio library");
489 819
490 /* atfork child called in fifo order, so before eio's handler */ 820 /* atfork child called in fifo order, so before eio's handler */
491 X_THREAD_ATFORK (0, 0, atfork_child); 821 X_THREAD_ATFORK (0, 0, atfork_child);
492} 822}
493 823
494void 824void
495max_poll_reqs (int nreqs) 825max_poll_reqs (int nreqs)
496 PROTOTYPE: $ 826 PROTOTYPE: $
527 CODE: 857 CODE:
528 max_outstanding = maxreqs; 858 max_outstanding = maxreqs;
529 859
530void 860void
531aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 861aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
532 PROTOTYPE: $$$;$
533 PPCODE: 862 PPCODE:
534{ 863{
535 dREQ; 864 dREQ;
536 865
537 req->type = EIO_OPEN; 866 req->type = EIO_OPEN;
543 REQ_SEND; 872 REQ_SEND;
544} 873}
545 874
546void 875void
547aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 876aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
548 PROTOTYPE: $;$
549 ALIAS: 877 ALIAS:
550 aio_fsync = EIO_FSYNC 878 aio_fsync = EIO_FSYNC
551 aio_fdatasync = EIO_FDATASYNC 879 aio_fdatasync = EIO_FDATASYNC
552 PPCODE: 880 PPCODE:
553{ 881{
882 int fd = s_fileno_croak (fh, 0);
554 dREQ; 883 dREQ;
555 884
556 req->type = ix; 885 req->type = ix;
557 req->sv1 = newSVsv (fh); 886 req->sv1 = newSVsv (fh);
558 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 887 req->int1 = fd;
559 888
560 REQ_SEND (req); 889 REQ_SEND (req);
561} 890}
562 891
563void 892void
893aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
894 PPCODE:
895{
896 int fd = s_fileno_croak (fh, 0);
897 dREQ;
898
899 req->type = EIO_SYNC_FILE_RANGE;
900 req->sv1 = newSVsv (fh);
901 req->int1 = fd;
902 req->offs = offset;
903 req->size = nbytes;
904 req->int2 = flags;
905
906 REQ_SEND (req);
907}
908
909void
564aio_close (SV *fh, SV *callback=&PL_sv_undef) 910aio_close (SV *fh, SV *callback=&PL_sv_undef)
565 PROTOTYPE: $;$
566 PPCODE: 911 PPCODE:
567{ 912{
568 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 913 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
914 int fd = s_fileno_croak (fh, 0);
569 dREQ; 915 dREQ;
570 916
571 if (close_pipe < 0) 917 if (close_pipe < 0)
572 { 918 {
573 int pipefd [2]; 919 int pipefd [2];
581 } 927 }
582 928
583 req->type = EIO_DUP2; 929 req->type = EIO_DUP2;
584 req->int1 = close_pipe; 930 req->int1 = close_pipe;
585 req->sv2 = newSVsv (fh); 931 req->sv2 = newSVsv (fh);
586 req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh))); 932 req->int2 = fd;
587 933
588 REQ_SEND (req); 934 REQ_SEND (req);
589} 935}
590 936
591void 937void
592aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 938aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
593 ALIAS: 939 ALIAS:
594 aio_read = EIO_READ 940 aio_read = EIO_READ
595 aio_write = EIO_WRITE 941 aio_write = EIO_WRITE
596 PROTOTYPE: $$$$$;$
597 PPCODE: 942 PPCODE:
598{ 943{
599 STRLEN svlen; 944 STRLEN svlen;
945 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
600 char *svptr = SvPVbyte (data, svlen); 946 char *svptr = SvPVbyte (data, svlen);
601 UV len = SvUV (length); 947 UV len = SvUV (length);
602
603 SvUPGRADE (data, SVt_PV);
604 SvPOK_on (data);
605 948
606 if (dataoffset < 0) 949 if (dataoffset < 0)
607 dataoffset += svlen; 950 dataoffset += svlen;
608 951
609 if (dataoffset < 0 || dataoffset > svlen) 952 if (dataoffset < 0 || dataoffset > svlen)
615 if (!SvOK (length) || len + dataoffset > svlen) 958 if (!SvOK (length) || len + dataoffset > svlen)
616 len = svlen - dataoffset; 959 len = svlen - dataoffset;
617 } 960 }
618 else 961 else
619 { 962 {
620 /* read: grow scalar as necessary */ 963 /* read: check type and grow scalar as necessary */
964 SvUPGRADE (data, SVt_PV);
621 svptr = SvGROW (data, len + dataoffset + 1); 965 svptr = SvGROW (data, len + dataoffset + 1);
622 } 966 }
623 967
624 if (len < 0)
625 croak ("length must not be negative");
626
627 { 968 {
628 dREQ; 969 dREQ;
629 970
630 req->type = ix; 971 req->type = ix;
631 req->sv1 = newSVsv (fh); 972 req->sv1 = newSVsv (fh);
632 req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh)) 973 req->int1 = fd;
633 : IoOFP (sv_2io (fh)));
634 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 974 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
635 req->size = len; 975 req->size = len;
636 req->sv2 = SvREFCNT_inc (data); 976 req->sv2 = SvREFCNT_inc (data);
637 req->ptr2 = (char *)svptr + dataoffset; 977 req->ptr2 = (char *)svptr + dataoffset;
638 req->stroffset = dataoffset; 978 req->stroffset = dataoffset;
647 } 987 }
648} 988}
649 989
650void 990void
651aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 991aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
652 PROTOTYPE: $$;$
653 PPCODE: 992 PPCODE:
654{ 993{
655 SV *data; 994 SV *data;
656 dREQ; 995 dREQ;
657 996
661 1000
662 REQ_SEND; 1001 REQ_SEND;
663} 1002}
664 1003
665void 1004void
666aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1005aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
667 PROTOTYPE: $$$$;$
668 PPCODE: 1006 PPCODE:
669{ 1007{
1008 int ifd = s_fileno_croak (in_fh , 0);
1009 int ofd = s_fileno_croak (out_fh, 1);
670 dREQ; 1010 dREQ;
671 1011
672 req->type = EIO_SENDFILE; 1012 req->type = EIO_SENDFILE;
673 req->sv1 = newSVsv (out_fh); 1013 req->sv1 = newSVsv (out_fh);
674 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1014 req->int1 = ofd;
675 req->sv2 = newSVsv (in_fh); 1015 req->sv2 = newSVsv (in_fh);
676 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1016 req->int2 = ifd;
677 req->offs = SvVAL64 (in_offset); 1017 req->offs = in_offset;
678 req->size = length; 1018 req->size = length;
679 1019
680 REQ_SEND; 1020 REQ_SEND;
681} 1021}
682 1022
683void 1023void
684aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1024aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
685 PROTOTYPE: $$$;$
686 PPCODE: 1025 PPCODE:
687{ 1026{
1027 int fd = s_fileno_croak (fh, 0);
688 dREQ; 1028 dREQ;
689 1029
690 req->type = EIO_READAHEAD; 1030 req->type = EIO_READAHEAD;
691 req->sv1 = newSVsv (fh); 1031 req->sv1 = newSVsv (fh);
692 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1032 req->int1 = fd;
693 req->offs = SvVAL64 (offset); 1033 req->offs = offset;
694 req->size = length; 1034 req->size = length;
695 1035
696 REQ_SEND; 1036 REQ_SEND;
697} 1037}
698 1038
699void 1039void
700aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1040aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
701 ALIAS: 1041 ALIAS:
702 aio_stat = EIO_STAT 1042 aio_stat = EIO_STAT
703 aio_lstat = EIO_LSTAT 1043 aio_lstat = EIO_LSTAT
1044 aio_statvfs = EIO_STATVFS
704 PPCODE: 1045 PPCODE:
705{ 1046{
706 dREQ; 1047 dREQ;
707 1048
708 req->sv1 = newSVsv (fh_or_path); 1049 req->sv1 = newSVsv (fh_or_path);
712 req->type = ix; 1053 req->type = ix;
713 req->ptr1 = SvPVbyte_nolen (req->sv1); 1054 req->ptr1 = SvPVbyte_nolen (req->sv1);
714 } 1055 }
715 else 1056 else
716 { 1057 {
717 req->type = EIO_FSTAT; 1058 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
718 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1059 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
719 } 1060 }
720 1061
721 REQ_SEND; 1062 REQ_SEND;
722} 1063}
817 1158
818 REQ_SEND; 1159 REQ_SEND;
819} 1160}
820 1161
821void 1162void
1163aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1164 PPCODE:
1165{
1166 dREQ;
1167
1168 req->type = EIO_READDIR;
1169 req->sv1 = newSVsv (pathname);
1170 req->ptr1 = SvPVbyte_nolen (req->sv1);
1171 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1172
1173 if (flags & EIO_READDIR_DENTS)
1174 req->int1 |= EIO_READDIR_CUSTOM2;
1175
1176 REQ_SEND;
1177}
1178
1179void
822aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1180aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
823 ALIAS: 1181 ALIAS:
824 aio_unlink = EIO_UNLINK 1182 aio_unlink = EIO_UNLINK
825 aio_rmdir = EIO_RMDIR 1183 aio_rmdir = EIO_RMDIR
826 aio_readdir = EIO_READDIR 1184 aio_readdir = EIO_READDIR
868 1226
869 REQ_SEND; 1227 REQ_SEND;
870} 1228}
871 1229
872void 1230void
1231aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1232 ALIAS:
1233 aio_mtouch = EIO_MTOUCH
1234 aio_msync = EIO_MSYNC
1235 PPCODE:
1236{
1237 STRLEN svlen;
1238 char *svptr = SvPVbyte (data, svlen);
1239 UV len = SvUV (length);
1240
1241 if (offset < 0)
1242 offset += svlen;
1243
1244 if (offset < 0 || offset > svlen)
1245 croak ("offset outside of scalar");
1246
1247 if (!SvOK (length) || len + offset > svlen)
1248 len = svlen - offset;
1249
1250 {
1251 dREQ;
1252
1253 req->type = ix;
1254 req->sv2 = SvREFCNT_inc (data);
1255 req->ptr2 = (char *)svptr + offset;
1256 req->size = len;
1257 req->int1 = flags;
1258
1259 REQ_SEND;
1260 }
1261}
1262
1263void
1264aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1265 PPCODE:
1266{
1267 STRLEN svlen;
1268 char *svptr = SvPVbyte (data, svlen);
1269 UV len = SvUV (length);
1270
1271 if (offset < 0)
1272 offset += svlen;
1273
1274 if (offset < 0 || offset > svlen)
1275 croak ("offset outside of scalar");
1276
1277 if (!SvOK (length) || len + offset > svlen)
1278 len = svlen - offset;
1279
1280 {
1281 dREQ;
1282
1283 req->type = EIO_MLOCK;
1284 req->sv2 = SvREFCNT_inc (data);
1285 req->ptr2 = (char *)svptr + offset;
1286 req->size = len;
1287
1288 REQ_SEND;
1289 }
1290}
1291
1292void
1293aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1294 PPCODE:
1295{
1296 dREQ;
1297
1298 req->type = EIO_MLOCKALL;
1299 req->int1 = flags;
1300
1301 REQ_SEND;
1302}
1303
1304void
873aio_busy (double delay, SV *callback=&PL_sv_undef) 1305aio_busy (double delay, SV *callback=&PL_sv_undef)
874 PPCODE: 1306 PPCODE:
875{ 1307{
876 dREQ; 1308 dREQ;
877 1309
881 REQ_SEND; 1313 REQ_SEND;
882} 1314}
883 1315
884void 1316void
885aio_group (SV *callback=&PL_sv_undef) 1317aio_group (SV *callback=&PL_sv_undef)
886 PROTOTYPE: ;$
887 PPCODE: 1318 PPCODE:
888{ 1319{
889 dREQ; 1320 dREQ;
890 1321
891 req->type = EIO_GROUP; 1322 req->type = EIO_GROUP;
892 1323
893 eio_submit (req); 1324 req_submit (req);
894 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1325 XPUSHs (req_sv (req, aio_grp_stash));
895} 1326}
896 1327
897void 1328void
898aio_nop (SV *callback=&PL_sv_undef) 1329aio_nop (SV *callback=&PL_sv_undef)
899 ALIAS: 1330 ALIAS:
908 REQ_SEND; 1339 REQ_SEND;
909} 1340}
910 1341
911int 1342int
912aioreq_pri (int pri = 0) 1343aioreq_pri (int pri = 0)
913 PROTOTYPE: ;$
914 CODE: 1344 CODE:
915 RETVAL = next_pri; 1345 RETVAL = next_pri;
916 if (items > 0) 1346 if (items > 0)
917 { 1347 {
918 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1348 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
930 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1360 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
931 next_pri = nice; 1361 next_pri = nice;
932 1362
933void 1363void
934flush () 1364flush ()
935 PROTOTYPE:
936 CODE: 1365 CODE:
937 while (eio_nreqs ()) 1366 while (eio_nreqs ())
938 { 1367 {
939 poll_wait (); 1368 poll_wait ();
940 poll_cb (); 1369 poll_cb ();
941 } 1370 }
942 1371
943int 1372int
944poll() 1373poll ()
945 PROTOTYPE:
946 CODE: 1374 CODE:
947 poll_wait (); 1375 poll_wait ();
948 RETVAL = poll_cb (); 1376 RETVAL = poll_cb ();
949 OUTPUT: 1377 OUTPUT:
950 RETVAL 1378 RETVAL
951 1379
952int 1380int
953poll_fileno() 1381poll_fileno ()
954 PROTOTYPE:
955 CODE: 1382 CODE:
956 RETVAL = respipe [0]; 1383 RETVAL = s_epipe_fd (&respipe);
957 OUTPUT: 1384 OUTPUT:
958 RETVAL 1385 RETVAL
959 1386
960int 1387int
961poll_cb(...) 1388poll_cb (...)
962 PROTOTYPE: 1389 PROTOTYPE:
963 CODE: 1390 CODE:
964 RETVAL = poll_cb (); 1391 RETVAL = poll_cb ();
965 OUTPUT: 1392 OUTPUT:
966 RETVAL 1393 RETVAL
967 1394
968void 1395void
969poll_wait() 1396poll_wait ()
970 PROTOTYPE:
971 CODE: 1397 CODE:
972 poll_wait (); 1398 poll_wait ();
973 1399
974int 1400int
975nreqs() 1401nreqs ()
976 PROTOTYPE:
977 CODE: 1402 CODE:
978 RETVAL = eio_nreqs (); 1403 RETVAL = eio_nreqs ();
979 OUTPUT: 1404 OUTPUT:
980 RETVAL 1405 RETVAL
981 1406
982int 1407int
983nready() 1408nready ()
984 PROTOTYPE:
985 CODE: 1409 CODE:
986 RETVAL = eio_nready (); 1410 RETVAL = eio_nready ();
987 OUTPUT: 1411 OUTPUT:
988 RETVAL 1412 RETVAL
989 1413
990int 1414int
991npending() 1415npending ()
992 PROTOTYPE:
993 CODE: 1416 CODE:
994 RETVAL = eio_npending (); 1417 RETVAL = eio_npending ();
995 OUTPUT: 1418 OUTPUT:
996 RETVAL 1419 RETVAL
997 1420
998int 1421int
999nthreads() 1422nthreads ()
1000 PROTOTYPE:
1001 CODE: 1423 CODE:
1002 RETVAL = eio_nthreads (); 1424 RETVAL = eio_nthreads ();
1003 OUTPUT: 1425 OUTPUT:
1004 RETVAL 1426 RETVAL
1005 1427
1428int
1429fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1430 CODE:
1431 RETVAL = posix_fadvise (fh, offset, length, advice);
1432 OUTPUT:
1433 RETVAL
1434
1435ssize_t
1436sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1437 CODE:
1438 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1439 OUTPUT:
1440 RETVAL
1441
1442void
1443mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1444 PPCODE:
1445 sv_unmagic (scalar, MMAP_MAGIC);
1446{
1447 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1448 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1449 if (addr == (void *)-1)
1450 XSRETURN_NO;
1451
1452 sv_force_normal (scalar);
1453
1454 /* we store the length in mg_obj, as namlen is I32 :/ */
1455 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1456 ->mg_obj = (SV *)length;
1457
1458 SvUPGRADE (scalar, SVt_PV); /* nop... */
1459
1460 if (!(prot & PROT_WRITE))
1461 SvREADONLY_on (scalar);
1462
1463 if (SvLEN (scalar))
1464 Safefree (SvPVX (scalar));
1465
1466 SvPVX (scalar) = (char *)addr;
1467 SvCUR_set (scalar, length);
1468 SvLEN_set (scalar, 0);
1469 SvPOK_only (scalar);
1470
1471 XSRETURN_YES;
1472}
1473
1474void
1475munmap (SV *scalar)
1476 CODE:
1477 sv_unmagic (scalar, MMAP_MAGIC);
1478
1479int
1480madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1481 ALIAS:
1482 mprotect = 1
1483 CODE:
1484{
1485 STRLEN svlen;
1486 void *addr = SvPVbyte (scalar, svlen);
1487 size_t len = SvUV (length);
1488
1489 if (offset < 0)
1490 offset += svlen;
1491
1492 if (offset < 0 || offset > svlen)
1493 croak ("offset outside of scalar");
1494
1495 if (!SvOK (length) || len + offset > svlen)
1496 len = svlen - offset;
1497
1498 addr = (void *)(((intptr_t)addr) + offset);
1499 eio_page_align (&addr, &len);
1500
1501 switch (ix)
1502 {
1503 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1504 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1505 }
1506}
1507 OUTPUT:
1508 RETVAL
1509
1510int
1511munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1512 CODE:
1513{
1514 STRLEN svlen;
1515 void *addr = SvPVbyte (scalar, svlen);
1516 size_t len = SvUV (length);
1517
1518 if (offset < 0)
1519 offset += svlen;
1520
1521 if (offset < 0 || offset > svlen)
1522 croak ("offset outside of scalar");
1523
1524 if (!SvOK (length) || len + offset > svlen)
1525 len = svlen - offset;
1526
1527 addr = (void *)(((intptr_t)addr) + offset);
1528 eio_page_align (&addr, &len);
1529#if _POSIX_MEMLOCK
1530 RETVAL = munlock (addr, len);
1531#else
1532 RETVAL = ((errno = ENOSYS), -1);
1533#endif
1534}
1535 OUTPUT:
1536 RETVAL
1537
1538int
1539munlockall ()
1540 CODE:
1541#if _POSIX_MEMLOCK
1542 munlockall ();
1543#else
1544 RETVAL = -1;
1545 errno = ENOSYS;
1546#endif
1547 OUTPUT:
1548 RETVAL
1549
1006void _on_next_submit (SV *cb) 1550void _on_next_submit (SV *cb)
1007 CODE: 1551 CODE:
1008 SvREFCNT_dec (on_next_submit); 1552 SvREFCNT_dec (on_next_submit);
1009 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; 1553 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1010 1554
1017 CODE: 1561 CODE:
1018 eio_cancel (req); 1562 eio_cancel (req);
1019 1563
1020void 1564void
1021cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1565cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1022 CODE: 1566 PPCODE:
1567{
1568 if (GIMME_V != G_VOID)
1569 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1570
1571 if (items > 1)
1572 {
1573 SV *cb_cv =get_cb (callback);
1574
1023 SvREFCNT_dec (req->callback); 1575 SvREFCNT_dec (req->callback);
1024 req->callback = newSVsv (callback); 1576 req->callback = SvREFCNT_inc (cb_cv);
1577 }
1578}
1025 1579
1026MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1580MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1027 1581
1028void 1582void
1029add (aio_req grp, ...) 1583add (aio_req grp, ...)
1061 AV *av; 1615 AV *av;
1062 1616
1063 grp->errorno = errno; 1617 grp->errorno = errno;
1064 1618
1065 av = newAV (); 1619 av = newAV ();
1620 av_extend (av, items - 1);
1066 1621
1067 for (i = 1; i < items; ++i ) 1622 for (i = 1; i < items; ++i )
1068 av_push (av, newSVsv (ST (i))); 1623 av_push (av, newSVsv (ST (i)));
1069 1624
1070 SvREFCNT_dec (grp->sv1); 1625 SvREFCNT_dec (grp->sv1);
1084void 1639void
1085feed (aio_req grp, SV *callback=&PL_sv_undef) 1640feed (aio_req grp, SV *callback=&PL_sv_undef)
1086 CODE: 1641 CODE:
1087{ 1642{
1088 SvREFCNT_dec (grp->sv2); 1643 SvREFCNT_dec (grp->sv2);
1089 grp->sv2 = newSVsv (callback); 1644 grp->sv2 = newSVsv (callback);
1645 grp->feed = aio_grp_feed;
1090 1646
1091 if (grp->int2 <= 0) 1647 if (grp->int2 <= 0)
1092 grp->int2 = 2; 1648 grp->int2 = 2;
1093 1649
1094 eio_grp_limit (grp, grp->int2); 1650 eio_grp_limit (grp, grp->int2);

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