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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.119 by root, Sun May 11 19:11:05 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
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_COMMON \ 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; \
89 SV *self 119 SV *self;
120
121#define EIO_NO_WRAPPERS 1
90 122
91#include "libeio/eio.h" 123#include "libeio/eio.h"
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
92 240
93static int req_invoke (eio_req *req); 241static int req_invoke (eio_req *req);
94#define EIO_FINISH(req) req_invoke (req) 242#define EIO_FINISH(req) req_invoke (req)
95static void aio_grp_feed (eio_req *grp);
96#define EIO_FEED(req) aio_grp_feed (req)
97static void req_destroy (eio_req *grp); 243static void req_destroy (eio_req *grp);
98#define EIO_DESTROY(req) req_destroy (req) 244#define EIO_DESTROY(req) req_destroy (req)
99 245
100enum { 246enum {
101 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ 247 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
105 251
106typedef eio_req *aio_req; 252typedef eio_req *aio_req;
107typedef eio_req *aio_req_ornot; 253typedef eio_req *aio_req_ornot;
108 254
109static SV *on_next_submit; 255static SV *on_next_submit;
110static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; 256static int next_pri = EIO_PRI_DEFAULT;
111static int max_outstanding; 257static int max_outstanding;
112 258
113static int respipe_osf [2], respipe [2] = { -1, -1 }; 259static s_epipe respipe;
114 260
115static void req_destroy (aio_req req); 261static void req_destroy (aio_req req);
116static void req_cancel (aio_req req); 262static void req_cancel (aio_req req);
117 263
118static void want_poll (void) 264static void want_poll (void)
119{ 265{
120 /* write a dummy byte to the pipe so fh becomes ready */ 266 /* write a dummy byte to the pipe so fh becomes ready */
121 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1); 267 s_epipe_signal (&respipe);
122} 268}
123 269
124static void done_poll (void) 270static void done_poll (void)
125{ 271{
126 /* read any signals sent by the worker threads */ 272 /* read any signals sent by the worker threads */
127 char buf [4]; 273 s_epipe_drain (&respipe);
128 while (respipe_read (respipe [0], buf, 4) == 4)
129 ;
130} 274}
131 275
132/* must be called at most once */ 276/* must be called at most once */
133static SV *req_sv (aio_req req, const char *klass) 277static SV *req_sv (aio_req req, HV *stash)
134{ 278{
135 if (!req->self) 279 if (!req->self)
136 { 280 {
137 req->self = (SV *)newHV (); 281 req->self = (SV *)newHV ();
138 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 282 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
139 } 283 }
140 284
141 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 285 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
142} 286}
143 287
144static aio_req SvAIO_REQ (SV *sv) 288static aio_req SvAIO_REQ (SV *sv)
145{ 289{
146 MAGIC *mg; 290 MAGIC *mg;
147 291
148 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")))
149 croak ("object of class " AIO_REQ_KLASS " expected"); 296 croak ("object of class IO::AIO::REQ expected");
150 297
151 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 298 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
152 299
153 return mg ? (aio_req)mg->mg_ptr : 0; 300 return mg ? (aio_req)mg->mg_ptr : 0;
154} 301}
160 dSP; 307 dSP;
161 308
162 ENTER; 309 ENTER;
163 SAVETMPS; 310 SAVETMPS;
164 PUSHMARK (SP); 311 PUSHMARK (SP);
165 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 312 XPUSHs (req_sv (grp, aio_grp_stash));
166 PUTBACK; 313 PUTBACK;
167 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 314 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
168 SPAGAIN; 315 SPAGAIN;
169 FREETMPS; 316 FREETMPS;
170 LEAVE; 317 LEAVE;
173 320
174static void req_submit (eio_req *req) 321static void req_submit (eio_req *req)
175{ 322{
176 eio_submit (req); 323 eio_submit (req);
177 324
178 if (on_next_submit) 325 if (expect_false (on_next_submit))
179 { 326 {
180 dSP; 327 dSP;
181 SV *cb = sv_2mortal (on_next_submit); 328 SV *cb = sv_2mortal (on_next_submit);
182 329
183 on_next_submit = 0; 330 on_next_submit = 0;
188 } 335 }
189} 336}
190 337
191static int req_invoke (eio_req *req) 338static int req_invoke (eio_req *req)
192{ 339{
193 dSP;
194
195 if (req->flags & FLAG_SV2_RO_OFF) 340 if (req->flags & FLAG_SV2_RO_OFF)
196 SvREADONLY_off (req->sv2); 341 SvREADONLY_off (req->sv2);
197 342
198 if (!EIO_CANCELLED (req) && SvOK (req->callback)) 343 if (!EIO_CANCELLED (req) && req->callback)
199 { 344 {
345 dSP;
346 static SV *sv_result_cache; /* caches the result integer SV */
347 SV *sv_result;
348
200 ENTER; 349 ENTER;
201 SAVETMPS; 350 SAVETMPS;
202 PUSHMARK (SP); 351 PUSHMARK (SP);
203 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 }
204 365
205 switch (req->type) 366 switch (req->type)
206 { 367 {
207 case EIO_READDIR: 368 case EIO_READDIR:
208 { 369 {
209 SV *rv = &PL_sv_undef; 370 SV *rv = &PL_sv_undef;
210 371
211 if (req->result >= 0) 372 if (req->result >= 0)
212 { 373 {
213 int i; 374 int i;
214 char *buf = req->ptr2; 375 char *names = (char *)req->ptr2;
376 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
215 AV *av = newAV (); 377 AV *av = newAV ();
216 378
217 av_extend (av, req->result - 1); 379 av_extend (av, req->result - 1);
218 380
219 for (i = 0; i < req->result; ++i) 381 for (i = 0; i < req->result; ++i)
220 { 382 {
221 SV *sv = newSVpv (buf, 0); 383 if (req->int1 & EIO_READDIR_DENTS)
384 {
385 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
222 386
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
223 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);
224 buf += SvCUR (sv) + 1; 415 names += SvCUR (name) + 1;
416 }
225 } 417 }
226 418
227 rv = sv_2mortal (newRV_noinc ((SV *)av)); 419 rv = sv_2mortal (newRV_noinc ((SV *)av));
228 } 420 }
229 421
230 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))));
231 } 426 }
232 break; 427 break;
233 428
234 case EIO_OPEN: 429 case EIO_OPEN:
235 { 430 {
241 GV *gv = (GV *)sv_newmortal (); 436 GV *gv = (GV *)sv_newmortal ();
242 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 437 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
243 char sym [64]; 438 char sym [64];
244 int symlen; 439 int symlen;
245 440
246 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 441 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
247 gv_init (gv, stash, sym, symlen, 0); 442 gv_init (gv, aio_stash, sym, symlen, 0);
248 443
249 symlen = snprintf ( 444 symlen = snprintf (
250 sym, 445 sym,
251 sizeof (sym), 446 sizeof (sym),
252 "%s&=%d", 447 "%s&=%d",
253 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", 448 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
254 req->result 449 (int)req->result
255 ); 450 );
256 451
257 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 452 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
258 fh = (SV *)gv; 453 fh = (SV *)gv;
259 } 454 }
260 455
261 PUSHs (fh); 456 PUSHs (fh);
262 } 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
263 break; 488 break;
264 489
265 case EIO_GROUP: 490 case EIO_GROUP:
266 req->int1 = 2; /* mark group as finished */ 491 req->int1 = 2; /* mark group as finished */
267 492
289 case EIO_LSTAT: 514 case EIO_LSTAT:
290 case EIO_FSTAT: 515 case EIO_FSTAT:
291 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 516 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
292 PL_laststatval = req->result; 517 PL_laststatval = req->result;
293 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 518 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
294 PUSHs (sv_2mortal (newSViv (req->result))); 519 PUSHs (sv_result);
295 break; 520 break;
296 521
297 case EIO_READ: 522 case EIO_READ:
523 {
298 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));
299 *SvEND (req->sv2) = 0; 525 *SvEND (req->sv2) = 0;
300 PUSHs (sv_2mortal (newSViv (req->result))); 526 SvPOK_only (req->sv2);
527 SvSETMAGIC (req->sv2);
528 PUSHs (sv_result);
529 }
301 break; 530 break;
302 531
303 case EIO_DUP2: 532 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
304 if (req->result > 0) 533 if (req->result > 0)
305 req->result = 0; 534 SvIV_set (sv_result, 0);
306 /* FALLTHROUGH */ 535 /* FALLTHROUGH */
307 536
308 default: 537 default:
309 PUSHs (sv_2mortal (newSViv (req->result))); 538 PUSHs (sv_result);
310 break; 539 break;
311 } 540 }
312 541
313 errno = req->errorno; 542 errno = req->errorno;
314 543
315 PUTBACK; 544 PUTBACK;
316 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 545 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
317 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;
318 552
319 FREETMPS; 553 FREETMPS;
320 LEAVE; 554 LEAVE;
321 555
322 PUTBACK; 556 PUTBACK;
351 grp->sv2 = 0; 585 grp->sv2 = 0;
352 586
353 eio_grp_cancel (grp); 587 eio_grp_cancel (grp);
354} 588}
355 589
356#ifdef USE_SOCKETS_AS_HANDLES
357# define TO_SOCKET(x) (win32_get_osfhandle (x))
358#else
359# define TO_SOCKET(x) (x)
360#endif
361
362static void 590static void
363create_respipe (void) 591create_respipe (void)
364{ 592{
365 int old_readfd = respipe [0];
366
367 if (respipe [1] >= 0)
368 respipe_close (TO_SOCKET (respipe [1]));
369
370#ifdef _WIN32
371 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
372#else
373 if (pipe (respipe)) 593 if (s_epipe_renew (&respipe))
374#endif
375 croak ("unable to initialize result pipe"); 594 croak ("IO::AIO: unable to initialize result pipe");
376
377 if (old_readfd >= 0)
378 {
379 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
380 croak ("unable to initialize result pipe(2)");
381
382 respipe_close (respipe [0]);
383 respipe [0] = old_readfd;
384 }
385
386#ifdef _WIN32
387 int arg = 1;
388 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
389 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
390#else
391 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
392 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
393#endif
394 croak ("unable to initialize result pipe(3)");
395
396 respipe_osf [0] = TO_SOCKET (respipe [0]);
397 respipe_osf [1] = TO_SOCKET (respipe [1]);
398} 595}
399 596
400static void poll_wait (void) 597static void poll_wait (void)
401{ 598{
402 fd_set rfd;
403
404 while (eio_nreqs ()) 599 while (eio_nreqs ())
405 { 600 {
406 int size; 601 int size;
407 602
408 X_LOCK (reslock); 603 X_LOCK (reslock);
410 X_UNLOCK (reslock); 605 X_UNLOCK (reslock);
411 606
412 if (size) 607 if (size)
413 return; 608 return;
414 609
415 maybe_start_thread (); 610 etp_maybe_start_thread ();
416 611
417 FD_ZERO (&rfd); 612 s_epipe_wait (&respipe);
418 FD_SET (respipe [0], &rfd);
419
420 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
421 } 613 }
422} 614}
423 615
424static int poll_cb (void) 616static int poll_cb (void)
425{ 617{
426 int res; 618 for (;;)
427
428 do
429 { 619 {
430 res = eio_poll (); 620 int res = eio_poll ();
431 621
432 if (res > 0) 622 if (res > 0)
433 croak (0); 623 croak (0);
624
625 if (!max_outstanding || max_outstanding > eio_nreqs ())
626 return res;
627
628 poll_wait ();
434 } 629 }
435 while (max_outstanding && max_outstanding <= eio_nreqs ());
436
437 return res;
438} 630}
439 631
440static void atfork_child (void) 632static void atfork_child (void)
441{ 633{
442 create_respipe (); 634 create_respipe ();
443} 635}
444 636
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
445#define dREQ \ 681#define dREQ \
682 SV *cb_cv; \
446 aio_req req; \ 683 aio_req req; \
447 int req_pri = next_pri; \ 684 int req_pri = next_pri; \
448 next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \ 685 next_pri = EIO_PRI_DEFAULT; \
449 \ 686 \
450 if (SvOK (callback) && !SvROK (callback)) \ 687 cb_cv = get_cb (callback); \
451 croak ("callback must be undef or of reference type"); \
452 \ 688 \
453 Newz (0, req, 1, eio_req); \ 689 Newz (0, req, 1, eio_req); \
454 if (!req) \ 690 if (!req) \
455 croak ("out of memory during eio_req allocation"); \ 691 croak ("out of memory during eio_req allocation"); \
456 \ 692 \
457 req->callback = newSVsv (callback); \ 693 req->callback = SvREFCNT_inc (cb_cv); \
458 req->pri = req_pri 694 req->pri = req_pri
459 695
460#define REQ_SEND \ 696#define REQ_SEND \
697 PUTBACK; \
461 req_submit (req); \ 698 req_submit (req); \
699 SPAGAIN; \
462 \ 700 \
463 if (GIMME_V != G_VOID) \ 701 if (GIMME_V != G_VOID) \
464 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 702 XPUSHs (req_sv (req, aio_req_stash));
465 703
466MODULE = IO::AIO PACKAGE = IO::AIO 704MODULE = IO::AIO PACKAGE = IO::AIO
467 705
468PROTOTYPES: ENABLE 706PROTOTYPES: ENABLE
469 707
470BOOT: 708BOOT:
471{ 709{
472 stash = gv_stashpv ("IO::AIO", 1); 710 static const struct {
473 711 const char *name;
474 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 712 IV iv;
475 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 713 } *civ, const_iv[] = {
476 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 714# define const_niv(name, value) { # name, (IV) value },
477 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); 715# define const_iv(name) { # name, (IV) name },
478 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)
479#ifdef _WIN32 726#ifndef _WIN32
480 X_MUTEX_CHECK (wrklock); 727 const_iv (S_IFIFO)
481 X_MUTEX_CHECK (reslock);
482 X_MUTEX_CHECK (reqlock);
483 X_MUTEX_CHECK (reqwait);
484 X_MUTEX_CHECK (preadwritelock);
485 X_MUTEX_CHECK (readdirlock);
486
487 X_COND_CHECK (reqwait);
488#else
489 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
490#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)
491 735
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
492 create_respipe (); 810 create_respipe ();
493 811
494 if (eio_init (want_poll, done_poll) < 0) 812 if (eio_init (want_poll, done_poll) < 0)
495 croak ("IO::AIO: unable to initialise eio library"); 813 croak ("IO::AIO: unable to initialise eio library");
496 814
497 /* atfork child called in fifo order, so before eio's handler */ 815 /* atfork child called in fifo order, so before eio's handler */
498 X_THREAD_ATFORK (0, 0, atfork_child); 816 X_THREAD_ATFORK (0, 0, atfork_child);
499} 817}
500 818
501void 819void
502max_poll_reqs (int nreqs) 820max_poll_reqs (int nreqs)
503 PROTOTYPE: $ 821 PROTOTYPE: $
534 CODE: 852 CODE:
535 max_outstanding = maxreqs; 853 max_outstanding = maxreqs;
536 854
537void 855void
538aio_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)
539 PROTOTYPE: $$$;$
540 PPCODE: 857 PPCODE:
541{ 858{
542 dREQ; 859 dREQ;
543 860
544 req->type = EIO_OPEN; 861 req->type = EIO_OPEN;
550 REQ_SEND; 867 REQ_SEND;
551} 868}
552 869
553void 870void
554aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 871aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
555 PROTOTYPE: $;$
556 ALIAS: 872 ALIAS:
557 aio_fsync = EIO_FSYNC 873 aio_fsync = EIO_FSYNC
558 aio_fdatasync = EIO_FDATASYNC 874 aio_fdatasync = EIO_FDATASYNC
559 PPCODE: 875 PPCODE:
560{ 876{
877 int fd = s_fileno_croak (fh, 0);
561 dREQ; 878 dREQ;
562 879
563 req->type = ix; 880 req->type = ix;
564 req->sv1 = newSVsv (fh); 881 req->sv1 = newSVsv (fh);
565 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 882 req->int1 = fd;
566 883
567 REQ_SEND (req); 884 REQ_SEND (req);
568} 885}
569 886
570void 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
571aio_close (SV *fh, SV *callback=&PL_sv_undef) 905aio_close (SV *fh, SV *callback=&PL_sv_undef)
572 PROTOTYPE: $;$
573 PPCODE: 906 PPCODE:
574{ 907{
575 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);
576 dREQ; 910 dREQ;
577 911
578 if (close_pipe < 0) 912 if (close_pipe < 0)
579 { 913 {
580 int pipefd [2]; 914 int pipefd [2];
588 } 922 }
589 923
590 req->type = EIO_DUP2; 924 req->type = EIO_DUP2;
591 req->int1 = close_pipe; 925 req->int1 = close_pipe;
592 req->sv2 = newSVsv (fh); 926 req->sv2 = newSVsv (fh);
593 req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh))); 927 req->int2 = fd;
594 928
595 REQ_SEND (req); 929 REQ_SEND (req);
596} 930}
597 931
598void 932void
599aio_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)
600 ALIAS: 934 ALIAS:
601 aio_read = EIO_READ 935 aio_read = EIO_READ
602 aio_write = EIO_WRITE 936 aio_write = EIO_WRITE
603 PROTOTYPE: $$$$$;$
604 PPCODE: 937 PPCODE:
605{ 938{
606 STRLEN svlen; 939 STRLEN svlen;
940 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
607 char *svptr = SvPVbyte (data, svlen); 941 char *svptr = SvPVbyte (data, svlen);
608 UV len = SvUV (length); 942 UV len = SvUV (length);
609
610 SvUPGRADE (data, SVt_PV);
611 SvPOK_on (data);
612 943
613 if (dataoffset < 0) 944 if (dataoffset < 0)
614 dataoffset += svlen; 945 dataoffset += svlen;
615 946
616 if (dataoffset < 0 || dataoffset > svlen) 947 if (dataoffset < 0 || dataoffset > svlen)
622 if (!SvOK (length) || len + dataoffset > svlen) 953 if (!SvOK (length) || len + dataoffset > svlen)
623 len = svlen - dataoffset; 954 len = svlen - dataoffset;
624 } 955 }
625 else 956 else
626 { 957 {
627 /* read: grow scalar as necessary */ 958 /* read: check type and grow scalar as necessary */
959 SvUPGRADE (data, SVt_PV);
628 svptr = SvGROW (data, len + dataoffset + 1); 960 svptr = SvGROW (data, len + dataoffset + 1);
629 } 961 }
630 962
631 if (len < 0)
632 croak ("length must not be negative");
633
634 { 963 {
635 dREQ; 964 dREQ;
636 965
637 req->type = ix; 966 req->type = ix;
638 req->sv1 = newSVsv (fh); 967 req->sv1 = newSVsv (fh);
639 req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh)) 968 req->int1 = fd;
640 : IoOFP (sv_2io (fh)));
641 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 969 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
642 req->size = len; 970 req->size = len;
643 req->sv2 = SvREFCNT_inc (data); 971 req->sv2 = SvREFCNT_inc (data);
644 req->ptr2 = (char *)svptr + dataoffset; 972 req->ptr2 = (char *)svptr + dataoffset;
645 req->stroffset = dataoffset; 973 req->stroffset = dataoffset;
654 } 982 }
655} 983}
656 984
657void 985void
658aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 986aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
659 PROTOTYPE: $$;$
660 PPCODE: 987 PPCODE:
661{ 988{
662 SV *data; 989 SV *data;
663 dREQ; 990 dREQ;
664 991
668 995
669 REQ_SEND; 996 REQ_SEND;
670} 997}
671 998
672void 999void
673aio_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)
674 PROTOTYPE: $$$$;$
675 PPCODE: 1001 PPCODE:
676{ 1002{
1003 int ifd = s_fileno_croak (in_fh , 0);
1004 int ofd = s_fileno_croak (out_fh, 1);
677 dREQ; 1005 dREQ;
678 1006
679 req->type = EIO_SENDFILE; 1007 req->type = EIO_SENDFILE;
680 req->sv1 = newSVsv (out_fh); 1008 req->sv1 = newSVsv (out_fh);
681 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1009 req->int1 = ofd;
682 req->sv2 = newSVsv (in_fh); 1010 req->sv2 = newSVsv (in_fh);
683 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1011 req->int2 = ifd;
684 req->offs = SvVAL64 (in_offset); 1012 req->offs = in_offset;
685 req->size = length; 1013 req->size = length;
686 1014
687 REQ_SEND; 1015 REQ_SEND;
688} 1016}
689 1017
690void 1018void
691aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1019aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
692 PROTOTYPE: $$$;$
693 PPCODE: 1020 PPCODE:
694{ 1021{
1022 int fd = s_fileno_croak (fh, 0);
695 dREQ; 1023 dREQ;
696 1024
697 req->type = EIO_READAHEAD; 1025 req->type = EIO_READAHEAD;
698 req->sv1 = newSVsv (fh); 1026 req->sv1 = newSVsv (fh);
699 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1027 req->int1 = fd;
700 req->offs = SvVAL64 (offset); 1028 req->offs = offset;
701 req->size = length; 1029 req->size = length;
702 1030
703 REQ_SEND; 1031 REQ_SEND;
704} 1032}
705 1033
706void 1034void
707aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1035aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
708 ALIAS: 1036 ALIAS:
709 aio_stat = EIO_STAT 1037 aio_stat = EIO_STAT
710 aio_lstat = EIO_LSTAT 1038 aio_lstat = EIO_LSTAT
1039 aio_statvfs = EIO_STATVFS
711 PPCODE: 1040 PPCODE:
712{ 1041{
713 dREQ; 1042 dREQ;
714 1043
715 req->sv1 = newSVsv (fh_or_path); 1044 req->sv1 = newSVsv (fh_or_path);
719 req->type = ix; 1048 req->type = ix;
720 req->ptr1 = SvPVbyte_nolen (req->sv1); 1049 req->ptr1 = SvPVbyte_nolen (req->sv1);
721 } 1050 }
722 else 1051 else
723 { 1052 {
724 req->type = EIO_FSTAT; 1053 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
725 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1054 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
726 } 1055 }
727 1056
728 REQ_SEND; 1057 REQ_SEND;
729} 1058}
787 req->int2 = mode; 1116 req->int2 = mode;
788 req->sv1 = newSVsv (fh_or_path); 1117 req->sv1 = newSVsv (fh_or_path);
789 1118
790 if (SvPOK (req->sv1)) 1119 if (SvPOK (req->sv1))
791 { 1120 {
792 req->type = EIO_FCHMOD; 1121 req->type = ix;
793 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1122 req->ptr1 = SvPVbyte_nolen (req->sv1);
794 } 1123 }
795 else 1124 else
796 { 1125 {
797 req->type = ix; 1126 req->type = EIO_FCHMOD;
798 req->ptr1 = SvPVbyte_nolen (req->sv1); 1127 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
799 } 1128 }
800 1129
801 REQ_SEND; 1130 REQ_SEND;
802} 1131}
803 1132
824 1153
825 REQ_SEND; 1154 REQ_SEND;
826} 1155}
827 1156
828void 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
829aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1175aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
830 ALIAS: 1176 ALIAS:
831 aio_unlink = EIO_UNLINK 1177 aio_unlink = EIO_UNLINK
832 aio_rmdir = EIO_RMDIR 1178 aio_rmdir = EIO_RMDIR
833 aio_readdir = EIO_READDIR 1179 aio_readdir = EIO_READDIR
875 1221
876 REQ_SEND; 1222 REQ_SEND;
877} 1223}
878 1224
879void 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
880aio_busy (double delay, SV *callback=&PL_sv_undef) 1300aio_busy (double delay, SV *callback=&PL_sv_undef)
881 PPCODE: 1301 PPCODE:
882{ 1302{
883 dREQ; 1303 dREQ;
884 1304
888 REQ_SEND; 1308 REQ_SEND;
889} 1309}
890 1310
891void 1311void
892aio_group (SV *callback=&PL_sv_undef) 1312aio_group (SV *callback=&PL_sv_undef)
893 PROTOTYPE: ;$
894 PPCODE: 1313 PPCODE:
895{ 1314{
896 dREQ; 1315 dREQ;
897 1316
898 req->type = EIO_GROUP; 1317 req->type = EIO_GROUP;
899 1318
900 eio_submit (req); 1319 req_submit (req);
901 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1320 XPUSHs (req_sv (req, aio_grp_stash));
902} 1321}
903 1322
904void 1323void
905aio_nop (SV *callback=&PL_sv_undef) 1324aio_nop (SV *callback=&PL_sv_undef)
906 ALIAS: 1325 ALIAS:
915 REQ_SEND; 1334 REQ_SEND;
916} 1335}
917 1336
918int 1337int
919aioreq_pri (int pri = 0) 1338aioreq_pri (int pri = 0)
920 PROTOTYPE: ;$
921 CODE: 1339 CODE:
922 RETVAL = next_pri - EIO_PRI_BIAS; 1340 RETVAL = next_pri;
923 if (items > 0) 1341 if (items > 0)
924 { 1342 {
925 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1343 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
926 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX; 1344 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
927 next_pri = pri + EIO_PRI_BIAS; 1345 next_pri = pri;
928 } 1346 }
929 OUTPUT: 1347 OUTPUT:
930 RETVAL 1348 RETVAL
931 1349
932void 1350void
933aioreq_nice (int nice = 0) 1351aioreq_nice (int nice = 0)
934 CODE: 1352 CODE:
935 nice = next_pri - nice; 1353 nice = next_pri - nice;
936 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN; 1354 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
937 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1355 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
938 next_pri = nice + EIO_PRI_BIAS; 1356 next_pri = nice;
939 1357
940void 1358void
941flush () 1359flush ()
942 PROTOTYPE:
943 CODE: 1360 CODE:
944 while (eio_nreqs ()) 1361 while (eio_nreqs ())
945 { 1362 {
946 poll_wait (); 1363 poll_wait ();
947 poll_cb (); 1364 poll_cb ();
948 } 1365 }
949 1366
950int 1367int
951poll() 1368poll ()
952 PROTOTYPE:
953 CODE: 1369 CODE:
954 poll_wait (); 1370 poll_wait ();
955 RETVAL = poll_cb (); 1371 RETVAL = poll_cb ();
956 OUTPUT: 1372 OUTPUT:
957 RETVAL 1373 RETVAL
958 1374
959int 1375int
960poll_fileno() 1376poll_fileno ()
961 PROTOTYPE:
962 CODE: 1377 CODE:
963 RETVAL = respipe [0]; 1378 RETVAL = s_epipe_fd (&respipe);
964 OUTPUT: 1379 OUTPUT:
965 RETVAL 1380 RETVAL
966 1381
967int 1382int
968poll_cb(...) 1383poll_cb (...)
969 PROTOTYPE: 1384 PROTOTYPE:
970 CODE: 1385 CODE:
971 RETVAL = poll_cb (); 1386 RETVAL = poll_cb ();
972 OUTPUT: 1387 OUTPUT:
973 RETVAL 1388 RETVAL
974 1389
975void 1390void
976poll_wait() 1391poll_wait ()
977 PROTOTYPE:
978 CODE: 1392 CODE:
979 poll_wait (); 1393 poll_wait ();
980 1394
981int 1395int
982nreqs() 1396nreqs ()
983 PROTOTYPE:
984 CODE: 1397 CODE:
985 RETVAL = eio_nreqs (); 1398 RETVAL = eio_nreqs ();
986 OUTPUT: 1399 OUTPUT:
987 RETVAL 1400 RETVAL
988 1401
989int 1402int
990nready() 1403nready ()
991 PROTOTYPE:
992 CODE: 1404 CODE:
993 RETVAL = eio_nready (); 1405 RETVAL = eio_nready ();
994 OUTPUT: 1406 OUTPUT:
995 RETVAL 1407 RETVAL
996 1408
997int 1409int
998npending() 1410npending ()
999 PROTOTYPE:
1000 CODE: 1411 CODE:
1001 RETVAL = eio_npending (); 1412 RETVAL = eio_npending ();
1002 OUTPUT: 1413 OUTPUT:
1003 RETVAL 1414 RETVAL
1004 1415
1005int 1416int
1006nthreads() 1417nthreads ()
1007 PROTOTYPE:
1008 CODE: 1418 CODE:
1009 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1419 RETVAL = eio_nthreads ();
1010 RETVAL = started;
1011 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1012 OUTPUT: 1420 OUTPUT:
1013 RETVAL 1421 RETVAL
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
1014 1544
1015void _on_next_submit (SV *cb) 1545void _on_next_submit (SV *cb)
1016 CODE: 1546 CODE:
1017 SvREFCNT_dec (on_next_submit); 1547 SvREFCNT_dec (on_next_submit);
1018 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; 1548 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1026 CODE: 1556 CODE:
1027 eio_cancel (req); 1557 eio_cancel (req);
1028 1558
1029void 1559void
1030cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1560cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1031 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
1032 SvREFCNT_dec (req->callback); 1570 SvREFCNT_dec (req->callback);
1033 req->callback = newSVsv (callback); 1571 req->callback = SvREFCNT_inc (cb_cv);
1572 }
1573}
1034 1574
1035MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1575MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1036 1576
1037void 1577void
1038add (aio_req grp, ...) 1578add (aio_req grp, ...)
1070 AV *av; 1610 AV *av;
1071 1611
1072 grp->errorno = errno; 1612 grp->errorno = errno;
1073 1613
1074 av = newAV (); 1614 av = newAV ();
1615 av_extend (av, items - 1);
1075 1616
1076 for (i = 1; i < items; ++i ) 1617 for (i = 1; i < items; ++i )
1077 av_push (av, newSVsv (ST (i))); 1618 av_push (av, newSVsv (ST (i)));
1078 1619
1079 SvREFCNT_dec (grp->sv1); 1620 SvREFCNT_dec (grp->sv1);
1093void 1634void
1094feed (aio_req grp, SV *callback=&PL_sv_undef) 1635feed (aio_req grp, SV *callback=&PL_sv_undef)
1095 CODE: 1636 CODE:
1096{ 1637{
1097 SvREFCNT_dec (grp->sv2); 1638 SvREFCNT_dec (grp->sv2);
1098 grp->sv2 = newSVsv (callback); 1639 grp->sv2 = newSVsv (callback);
1640 grp->feed = aio_grp_feed;
1099 1641
1100 if (grp->int2 <= 0) 1642 if (grp->int2 <= 0)
1101 grp->int2 = 2; 1643 grp->int2 = 2;
1102 1644
1103 eio_grp_limit (grp, grp->int2); 1645 eio_grp_limit (grp, grp->int2);

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