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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.120 by root, Sun May 11 19:17:09 2008 UTC vs.
Revision 1.176 by root, Thu Dec 2 10:04:47 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;
90 120
121#define EIO_NO_WRAPPERS 1
122
123#include "libeio/config.h"
91#include "libeio/eio.h" 124#include "libeio/eio.h"
125
126#ifndef POSIX_FADV_NORMAL
127# define POSIX_FADV_NORMAL 0
128#endif
129#ifndef POSIX_FADV_SEQUENTIAL
130# define POSIX_FADV_SEQUENTIAL 0
131#endif
132#ifndef POSIX_FADV_RANDOM
133# define POSIX_FADV_RANDOM 0
134#endif
135#ifndef POSIX_FADV_NOREUSE
136# define POSIX_FADV_NOREUSE 0
137#endif
138#ifndef POSIX_FADV_WILLNEED
139# define POSIX_FADV_WILLNEED 0
140#endif
141#ifndef POSIX_FADV_DONTNEED
142# define POSIX_FADV_DONTNEED 0
143#endif
144
145#if !HAVE_POSIX_FADVISE
146# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
147#endif
148
149#ifndef POSIX_MADV_NORMAL
150# define POSIX_MADV_NORMAL 0
151#endif
152#ifndef POSIX_MADV_SEQUENTIAL
153# define POSIX_MADV_SEQUENTIAL 0
154#endif
155#ifndef POSIX_MADV_RANDOM
156# define POSIX_MADV_RANDOM 0
157#endif
158#ifndef POSIX_MADV_WILLNEED
159# define POSIX_MADV_WILLNEED 0
160#endif
161#ifndef POSIX_MADV_DONTNEED
162# define POSIX_MADV_DONTNEED 0
163#endif
164
165#if !HAVE_POSIX_MADVISE
166# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
167#endif
168
169#ifndef PROT_NONE
170# define PROT_NONE 0
171#endif
172#ifndef PROT_READ
173# define PROT_READ 0
174#endif
175#ifndef PROT_WRITE
176# define PROT_READ 0
177#endif
178#ifndef PROT_EXEC
179# define PROT_EXEC 0
180#endif
181
182#ifndef ST_NODEV
183# define ST_NODEV 0
184#endif
185#ifndef ST_NOEXEC
186# define ST_NOEXEC 0
187#endif
188#ifndef ST_SYNCHRONOUS
189# define ST_SYNCHRONOUS 0
190#endif
191#ifndef ST_MANDLOCK
192# define ST_MANDLOCK 0
193#endif
194#ifndef ST_WRITE
195# define ST_WRITE 0
196#endif
197#ifndef ST_APPEND
198# define ST_APPEND 0
199#endif
200#ifndef ST_IMMUTABLE
201# define ST_IMMUTABLE 0
202#endif
203#ifndef ST_NOATIME
204# define ST_NOATIME 0
205#endif
206#ifndef ST_NODIRATIME
207# define ST_NODIRATIME 0
208#endif
209#ifndef ST_RELATIME
210# define ST_RELATIME 0
211#endif
212
213#ifndef MAP_ANONYMOUS
214# ifdef MAP_ANON
215# define MAP_ANONYMOUS MAP_ANON
216# else
217# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
218# endif
219#endif
220#ifndef MAP_HUGETLB
221# define MAP_HUGETLB 0
222#endif
223#ifndef MAP_LOCKED
224# define MAP_LOCKED 0
225#endif
226#ifndef MAP_NORESERVE
227# define MAP_NORESERVE 0
228#endif
229#ifndef MAP_POPULATE
230# define MAP_POPULATE 0
231#endif
232#ifndef MAP_NONBLOCK
233# define MAP_NONBLOCK 0
234#endif
235
236#ifndef PAGESIZE
237# define PAGESIZE sysconf (_SC_PAGESIZE)
238#endif
92 239
93static int req_invoke (eio_req *req); 240static int req_invoke (eio_req *req);
94#define EIO_FINISH(req) req_invoke (req) 241#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); 242static void req_destroy (eio_req *grp);
98#define EIO_DESTROY(req) req_destroy (req) 243#define EIO_DESTROY(req) req_destroy (req)
99 244
100enum { 245enum {
101 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ 246 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
105 250
106typedef eio_req *aio_req; 251typedef eio_req *aio_req;
107typedef eio_req *aio_req_ornot; 252typedef eio_req *aio_req_ornot;
108 253
109static SV *on_next_submit; 254static SV *on_next_submit;
110static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; 255static int next_pri = EIO_PRI_DEFAULT;
111static int max_outstanding; 256static int max_outstanding;
112 257
113static int respipe_osf [2], respipe [2] = { -1, -1 }; 258static s_epipe respipe;
114 259
115static void req_destroy (aio_req req); 260static void req_destroy (aio_req req);
116static void req_cancel (aio_req req); 261static void req_cancel (aio_req req);
117 262
118static void want_poll (void) 263static void want_poll (void)
119{ 264{
120 /* write a dummy byte to the pipe so fh becomes ready */ 265 /* write a dummy byte to the pipe so fh becomes ready */
121 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1); 266 s_epipe_signal (&respipe);
122} 267}
123 268
124static void done_poll (void) 269static void done_poll (void)
125{ 270{
126 /* read any signals sent by the worker threads */ 271 /* read any signals sent by the worker threads */
127 char buf [4]; 272 s_epipe_drain (&respipe);
128 while (respipe_read (respipe [0], buf, 4) == 4)
129 ;
130} 273}
131 274
132/* must be called at most once */ 275/* must be called at most once */
133static SV *req_sv (aio_req req, const char *klass) 276static SV *req_sv (aio_req req, HV *stash)
134{ 277{
135 if (!req->self) 278 if (!req->self)
136 { 279 {
137 req->self = (SV *)newHV (); 280 req->self = (SV *)newHV ();
138 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 281 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
139 } 282 }
140 283
141 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 284 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
142} 285}
143 286
144static aio_req SvAIO_REQ (SV *sv) 287static aio_req SvAIO_REQ (SV *sv)
145{ 288{
146 MAGIC *mg; 289 MAGIC *mg;
147 290
148 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 291 if (!SvROK (sv)
292 || (SvSTASH (SvRV (sv)) != aio_grp_stash
293 && SvSTASH (SvRV (sv)) != aio_req_stash
294 && !sv_derived_from (sv, "IO::AIO::REQ")))
149 croak ("object of class " AIO_REQ_KLASS " expected"); 295 croak ("object of class IO::AIO::REQ expected");
150 296
151 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 297 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
152 298
153 return mg ? (aio_req)mg->mg_ptr : 0; 299 return mg ? (aio_req)mg->mg_ptr : 0;
154} 300}
160 dSP; 306 dSP;
161 307
162 ENTER; 308 ENTER;
163 SAVETMPS; 309 SAVETMPS;
164 PUSHMARK (SP); 310 PUSHMARK (SP);
165 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 311 XPUSHs (req_sv (grp, aio_grp_stash));
166 PUTBACK; 312 PUTBACK;
167 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 313 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
168 SPAGAIN; 314 SPAGAIN;
169 FREETMPS; 315 FREETMPS;
170 LEAVE; 316 LEAVE;
173 319
174static void req_submit (eio_req *req) 320static void req_submit (eio_req *req)
175{ 321{
176 eio_submit (req); 322 eio_submit (req);
177 323
178 if (on_next_submit) 324 if (expect_false (on_next_submit))
179 { 325 {
180 dSP; 326 dSP;
181 SV *cb = sv_2mortal (on_next_submit); 327 SV *cb = sv_2mortal (on_next_submit);
182 328
183 on_next_submit = 0; 329 on_next_submit = 0;
188 } 334 }
189} 335}
190 336
191static int req_invoke (eio_req *req) 337static int req_invoke (eio_req *req)
192{ 338{
193 dSP;
194
195 if (req->flags & FLAG_SV2_RO_OFF) 339 if (req->flags & FLAG_SV2_RO_OFF)
196 SvREADONLY_off (req->sv2); 340 SvREADONLY_off (req->sv2);
197 341
198 if (!EIO_CANCELLED (req) && SvOK (req->callback)) 342 if (!EIO_CANCELLED (req) && req->callback)
199 { 343 {
344 dSP;
345 static SV *sv_result_cache; /* caches the result integer SV */
346 SV *sv_result;
347
200 ENTER; 348 ENTER;
201 SAVETMPS; 349 SAVETMPS;
202 PUSHMARK (SP); 350 PUSHMARK (SP);
203 EXTEND (SP, 1); 351 EXTEND (SP, 1);
352
353 /* do not recreate the result IV from scratch each time */
354 if (expect_true (sv_result_cache))
355 {
356 sv_result = sv_result_cache; sv_result_cache = 0;
357 SvIV_set (sv_result, req->result);
358 }
359 else
360 {
361 sv_result = newSViv (req->result);
362 SvREADONLY_on (sv_result);
363 }
204 364
205 switch (req->type) 365 switch (req->type)
206 { 366 {
207 case EIO_READDIR: 367 case EIO_READDIR:
208 { 368 {
209 SV *rv = &PL_sv_undef; 369 SV *rv = &PL_sv_undef;
210 370
211 if (req->result >= 0) 371 if (req->result >= 0)
212 { 372 {
213 int i; 373 int i;
214 char *buf = req->ptr2; 374 char *names = (char *)req->ptr2;
375 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
215 AV *av = newAV (); 376 AV *av = newAV ();
216 377
217 av_extend (av, req->result - 1); 378 av_extend (av, req->result - 1);
218 379
219 for (i = 0; i < req->result; ++i) 380 for (i = 0; i < req->result; ++i)
220 { 381 {
221 SV *sv = newSVpv (buf, 0); 382 if (req->int1 & EIO_READDIR_DENTS)
383 {
384 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
222 385
386 if (req->int1 & EIO_READDIR_CUSTOM2)
387 {
388 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
389 AV *avent = newAV ();
390
391 av_extend (avent, 2);
392
393 if (!sv_type [ent->type])
394 {
395 sv_type [ent->type] = newSViv (ent->type);
396 SvREADONLY_on (sv_type [ent->type]);
397 }
398
399 av_store (avent, 0, namesv);
400 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
401 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
402
403 av_store (av, i, newRV_noinc ((SV *)avent));
404 }
405 else
223 av_store (av, i, sv); 406 av_store (av, i, namesv);
407
408 ++ent;
409 }
410 else
411 {
412 SV *name = newSVpv (names, 0);
413 av_store (av, i, name);
224 buf += SvCUR (sv) + 1; 414 names += SvCUR (name) + 1;
415 }
225 } 416 }
226 417
227 rv = sv_2mortal (newRV_noinc ((SV *)av)); 418 rv = sv_2mortal (newRV_noinc ((SV *)av));
228 } 419 }
229 420
230 PUSHs (rv); 421 PUSHs (rv);
422
423 if (req->int1 & EIO_READDIR_CUSTOM1)
424 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
231 } 425 }
232 break; 426 break;
233 427
234 case EIO_OPEN: 428 case EIO_OPEN:
235 { 429 {
241 GV *gv = (GV *)sv_newmortal (); 435 GV *gv = (GV *)sv_newmortal ();
242 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 436 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
243 char sym [64]; 437 char sym [64];
244 int symlen; 438 int symlen;
245 439
246 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 440 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
247 gv_init (gv, stash, sym, symlen, 0); 441 gv_init (gv, aio_stash, sym, symlen, 0);
248 442
249 symlen = snprintf ( 443 symlen = snprintf (
250 sym, 444 sym,
251 sizeof (sym), 445 sizeof (sym),
252 "%s&=%d", 446 "%s&=%d",
253 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", 447 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
254 req->result 448 (int)req->result
255 ); 449 );
256 450
257 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 451 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
258 fh = (SV *)gv; 452 fh = (SV *)gv;
259 } 453 }
260 454
261 PUSHs (fh); 455 PUSHs (fh);
262 } 456 }
457 break;
458
459 case EIO_STATVFS:
460 case EIO_FSTATVFS:
461 {
462 SV *rv = &PL_sv_undef;
463
464 if (req->result >= 0)
465 {
466 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
467 HV *hv = newHV ();
468
469 rv = sv_2mortal (newRV_noinc ((SV *)hv));
470
471 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
472 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
473 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
474 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
475 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
476 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
477 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
478 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
479 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
480 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
481 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
482 }
483
484 PUSHs (rv);
485 }
486
263 break; 487 break;
264 488
265 case EIO_GROUP: 489 case EIO_GROUP:
266 req->int1 = 2; /* mark group as finished */ 490 req->int1 = 2; /* mark group as finished */
267 491
289 case EIO_LSTAT: 513 case EIO_LSTAT:
290 case EIO_FSTAT: 514 case EIO_FSTAT:
291 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 515 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
292 PL_laststatval = req->result; 516 PL_laststatval = req->result;
293 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 517 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
294 PUSHs (sv_2mortal (newSViv (req->result))); 518 PUSHs (sv_result);
295 break; 519 break;
296 520
297 case EIO_READ: 521 case EIO_READ:
522 {
298 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 523 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
299 *SvEND (req->sv2) = 0; 524 *SvEND (req->sv2) = 0;
300 PUSHs (sv_2mortal (newSViv (req->result))); 525 SvPOK_only (req->sv2);
526 SvSETMAGIC (req->sv2);
527 PUSHs (sv_result);
528 }
301 break; 529 break;
302 530
303 case EIO_DUP2: 531 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
304 if (req->result > 0) 532 if (req->result > 0)
305 req->result = 0; 533 SvIV_set (sv_result, 0);
306 /* FALLTHROUGH */ 534 /* FALLTHROUGH */
307 535
308 default: 536 default:
309 PUSHs (sv_2mortal (newSViv (req->result))); 537 PUSHs (sv_result);
310 break; 538 break;
311 } 539 }
312 540
313 errno = req->errorno; 541 errno = req->errorno;
314 542
315 PUTBACK; 543 PUTBACK;
316 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 544 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
317 SPAGAIN; 545 SPAGAIN;
546
547 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
548 SvREFCNT_dec (sv_result);
549 else
550 sv_result_cache = sv_result;
318 551
319 FREETMPS; 552 FREETMPS;
320 LEAVE; 553 LEAVE;
321 554
322 PUTBACK; 555 PUTBACK;
351 grp->sv2 = 0; 584 grp->sv2 = 0;
352 585
353 eio_grp_cancel (grp); 586 eio_grp_cancel (grp);
354} 587}
355 588
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 589static void
363create_respipe (void) 590create_respipe (void)
364{ 591{
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)) 592 if (s_epipe_renew (&respipe))
374#endif
375 croak ("unable to initialize result pipe"); 593 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} 594}
399 595
400static void poll_wait (void) 596static void poll_wait (void)
401{ 597{
402 fd_set rfd;
403
404 while (eio_nreqs ()) 598 while (eio_nreqs ())
405 { 599 {
406 int size; 600 int size;
407 601
408 X_LOCK (reslock); 602 X_LOCK (reslock);
410 X_UNLOCK (reslock); 604 X_UNLOCK (reslock);
411 605
412 if (size) 606 if (size)
413 return; 607 return;
414 608
415 maybe_start_thread (); 609 etp_maybe_start_thread ();
416 610
417 FD_ZERO (&rfd); 611 s_epipe_wait (&respipe);
418 FD_SET (respipe [0], &rfd);
419
420 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
421 } 612 }
422} 613}
423 614
424static int poll_cb (void) 615static int poll_cb (void)
425{ 616{
426 int res; 617 for (;;)
427
428 do
429 { 618 {
430 res = eio_poll (); 619 int res = eio_poll ();
431 620
432 if (res > 0) 621 if (res > 0)
433 croak (0); 622 croak (0);
623
624 if (!max_outstanding || max_outstanding > eio_nreqs ())
625 return res;
626
627 poll_wait ();
434 } 628 }
435 while (max_outstanding && max_outstanding <= eio_nreqs ());
436
437 return res;
438} 629}
439 630
440static void atfork_child (void) 631static void atfork_child (void)
441{ 632{
442 create_respipe (); 633 create_respipe ();
443} 634}
444 635
636/*****************************************************************************/
637
638#if !_POSIX_MAPPED_FILES
639# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
640# define munmap(addr,length) (errno = ENOSYS, -1)
641# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
642# define PROT_NONE 0
643# define PROT_WRITE 0
644# define MAP_PRIVATE 0
645# define MAP_SHARED 0
646# define MAP_FIXED 0
647#endif
648
649#define MMAP_MAGIC PERL_MAGIC_ext
650
651static int
652mmap_free (pTHX_ SV *sv, MAGIC *mg)
653{
654 int old_errno = errno;
655 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
656 errno = old_errno;
657
658 mg->mg_obj = 0; /* just in case */
659
660 SvREADONLY_off (sv);
661
662 if (SvPVX (sv) != mg->mg_ptr)
663 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
664
665 SvCUR_set (sv, 0);
666 SvPVX (sv) = 0;
667 SvOK_off (sv);
668
669 return 0;
670}
671
672static MGVTBL mmap_vtbl = {
673 0, 0, 0, 0, mmap_free
674};
675
676/*****************************************************************************/
677
678static SV *
679get_cb (SV *cb_sv)
680{
681 SvGETMAGIC (cb_sv);
682 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
683}
684
445#define dREQ \ 685#define dREQ \
686 SV *cb_cv; \
446 aio_req req; \ 687 aio_req req; \
447 int req_pri = next_pri; \ 688 int req_pri = next_pri; \
448 next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \ 689 next_pri = EIO_PRI_DEFAULT; \
449 \ 690 \
450 if (SvOK (callback) && !SvROK (callback)) \ 691 cb_cv = get_cb (callback); \
451 croak ("callback must be undef or of reference type"); \
452 \ 692 \
453 Newz (0, req, 1, eio_req); \ 693 Newz (0, req, 1, eio_req); \
454 if (!req) \ 694 if (!req) \
455 croak ("out of memory during eio_req allocation"); \ 695 croak ("out of memory during eio_req allocation"); \
456 \ 696 \
457 req->callback = newSVsv (callback); \ 697 req->callback = SvREFCNT_inc (cb_cv); \
458 req->pri = req_pri 698 req->pri = req_pri
459 699
460#define REQ_SEND \ 700#define REQ_SEND \
701 PUTBACK; \
461 req_submit (req); \ 702 req_submit (req); \
703 SPAGAIN; \
462 \ 704 \
463 if (GIMME_V != G_VOID) \ 705 if (GIMME_V != G_VOID) \
464 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 706 XPUSHs (req_sv (req, aio_req_stash));
465 707
466MODULE = IO::AIO PACKAGE = IO::AIO 708MODULE = IO::AIO PACKAGE = IO::AIO
467 709
468PROTOTYPES: ENABLE 710PROTOTYPES: ENABLE
469 711
470BOOT: 712BOOT:
471{ 713{
472 stash = gv_stashpv ("IO::AIO", 1); 714 static const struct {
473 715 const char *name;
474 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 716 IV iv;
475 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 717 } *civ, const_iv[] = {
476 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 718# define const_niv(name, value) { # name, (IV) value },
477 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); 719# define const_iv(name) { # name, (IV) name },
478 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); 720# define const_eio(name) { # name, (IV) EIO_ ## name },
721 const_iv (EXDEV)
722 const_iv (ENOSYS)
723 const_iv (O_RDONLY)
724 const_iv (O_WRONLY)
725 const_iv (O_RDWR)
726 const_iv (O_CREAT)
727 const_iv (O_TRUNC)
728 const_iv (O_EXCL)
729 const_iv (O_APPEND)
479#ifdef _WIN32 730#ifndef _WIN32
480 X_MUTEX_CHECK (wrklock); 731 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 732#endif
733 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
734 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
735 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
736 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
737 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
738 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
491 739
740 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
741 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
742 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
743 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
744 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
745
746 const_iv (ST_RDONLY)
747 const_iv (ST_NOSUID)
748 const_iv (ST_NODEV)
749 const_iv (ST_NOEXEC)
750 const_iv (ST_SYNCHRONOUS)
751 const_iv (ST_MANDLOCK)
752 const_iv (ST_WRITE)
753 const_iv (ST_APPEND)
754 const_iv (ST_IMMUTABLE)
755 const_iv (ST_NOATIME)
756 const_iv (ST_NODIRATIME)
757 const_iv (ST_RELATIME)
758
759 const_iv (PROT_NONE)
760 const_iv (PROT_EXEC)
761 const_iv (PROT_READ)
762 const_iv (PROT_WRITE)
763
764 /*const_iv (MAP_FIXED)*/
765 const_iv (MAP_PRIVATE)
766 const_iv (MAP_SHARED)
767 const_iv (MAP_ANONYMOUS)
768
769 /* linuxish */
770 const_iv (MAP_HUGETLB)
771 const_iv (MAP_LOCKED)
772 const_iv (MAP_NORESERVE)
773 const_iv (MAP_POPULATE)
774 const_iv (MAP_NONBLOCK)
775
776 const_eio (MCL_FUTURE)
777 const_eio (MCL_CURRENT)
778
779 const_eio (MS_ASYNC)
780 const_eio (MS_INVALIDATE)
781 const_eio (MS_SYNC)
782
783 const_eio (MT_MODIFY)
784
785 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
786 const_eio (SYNC_FILE_RANGE_WRITE)
787 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
788
789 const_eio (READDIR_DENTS)
790 const_eio (READDIR_DIRS_FIRST)
791 const_eio (READDIR_STAT_ORDER)
792 const_eio (READDIR_FOUND_UNKNOWN)
793
794 const_eio (DT_UNKNOWN)
795 const_eio (DT_FIFO)
796 const_eio (DT_CHR)
797 const_eio (DT_DIR)
798 const_eio (DT_BLK)
799 const_eio (DT_REG)
800 const_eio (DT_LNK)
801 const_eio (DT_SOCK)
802 const_eio (DT_WHT)
803 };
804
805 aio_stash = gv_stashpv ("IO::AIO" , 1);
806 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
807 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
808
809 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
810 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
811
812 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
813
492 create_respipe (); 814 create_respipe ();
493 815
494 if (eio_init (want_poll, done_poll) < 0) 816 if (eio_init (want_poll, done_poll) < 0)
495 croak ("IO::AIO: unable to initialise eio library"); 817 croak ("IO::AIO: unable to initialise eio library");
496 818
497 /* atfork child called in fifo order, so before eio's handler */ 819 /* atfork child called in fifo order, so before eio's handler */
498 X_THREAD_ATFORK (0, 0, atfork_child); 820 X_THREAD_ATFORK (0, 0, atfork_child);
499} 821}
500 822
501void 823void
502max_poll_reqs (int nreqs) 824max_poll_reqs (int nreqs)
503 PROTOTYPE: $ 825 PROTOTYPE: $
534 CODE: 856 CODE:
535 max_outstanding = maxreqs; 857 max_outstanding = maxreqs;
536 858
537void 859void
538aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 860aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
539 PROTOTYPE: $$$;$
540 PPCODE: 861 PPCODE:
541{ 862{
542 dREQ; 863 dREQ;
543 864
544 req->type = EIO_OPEN; 865 req->type = EIO_OPEN;
550 REQ_SEND; 871 REQ_SEND;
551} 872}
552 873
553void 874void
554aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 875aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
555 PROTOTYPE: $;$
556 ALIAS: 876 ALIAS:
557 aio_fsync = EIO_FSYNC 877 aio_fsync = EIO_FSYNC
558 aio_fdatasync = EIO_FDATASYNC 878 aio_fdatasync = EIO_FDATASYNC
559 PPCODE: 879 PPCODE:
560{ 880{
881 int fd = s_fileno_croak (fh, 0);
561 dREQ; 882 dREQ;
562 883
563 req->type = ix; 884 req->type = ix;
564 req->sv1 = newSVsv (fh); 885 req->sv1 = newSVsv (fh);
565 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 886 req->int1 = fd;
566 887
567 REQ_SEND (req); 888 REQ_SEND (req);
568} 889}
569 890
570void 891void
892aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
893 PPCODE:
894{
895 int fd = s_fileno_croak (fh, 0);
896 dREQ;
897
898 req->type = EIO_SYNC_FILE_RANGE;
899 req->sv1 = newSVsv (fh);
900 req->int1 = fd;
901 req->offs = offset;
902 req->size = nbytes;
903 req->int2 = flags;
904
905 REQ_SEND (req);
906}
907
908void
571aio_close (SV *fh, SV *callback=&PL_sv_undef) 909aio_close (SV *fh, SV *callback=&PL_sv_undef)
572 PROTOTYPE: $;$
573 PPCODE: 910 PPCODE:
574{ 911{
575 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 912 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
913 int fd = s_fileno_croak (fh, 0);
576 dREQ; 914 dREQ;
577 915
578 if (close_pipe < 0) 916 if (close_pipe < 0)
579 { 917 {
580 int pipefd [2]; 918 int pipefd [2];
588 } 926 }
589 927
590 req->type = EIO_DUP2; 928 req->type = EIO_DUP2;
591 req->int1 = close_pipe; 929 req->int1 = close_pipe;
592 req->sv2 = newSVsv (fh); 930 req->sv2 = newSVsv (fh);
593 req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh))); 931 req->int2 = fd;
594 932
595 REQ_SEND (req); 933 REQ_SEND (req);
596} 934}
597 935
598void 936void
599aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 937aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
600 ALIAS: 938 ALIAS:
601 aio_read = EIO_READ 939 aio_read = EIO_READ
602 aio_write = EIO_WRITE 940 aio_write = EIO_WRITE
603 PROTOTYPE: $$$$$;$
604 PPCODE: 941 PPCODE:
605{ 942{
606 STRLEN svlen; 943 STRLEN svlen;
944 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
607 char *svptr = SvPVbyte (data, svlen); 945 char *svptr = SvPVbyte (data, svlen);
608 UV len = SvUV (length); 946 UV len = SvUV (length);
609
610 SvUPGRADE (data, SVt_PV);
611 SvPOK_on (data);
612 947
613 if (dataoffset < 0) 948 if (dataoffset < 0)
614 dataoffset += svlen; 949 dataoffset += svlen;
615 950
616 if (dataoffset < 0 || dataoffset > svlen) 951 if (dataoffset < 0 || dataoffset > svlen)
622 if (!SvOK (length) || len + dataoffset > svlen) 957 if (!SvOK (length) || len + dataoffset > svlen)
623 len = svlen - dataoffset; 958 len = svlen - dataoffset;
624 } 959 }
625 else 960 else
626 { 961 {
627 /* read: grow scalar as necessary */ 962 /* read: check type and grow scalar as necessary */
963 SvUPGRADE (data, SVt_PV);
628 svptr = SvGROW (data, len + dataoffset + 1); 964 svptr = SvGROW (data, len + dataoffset + 1);
629 } 965 }
630 966
631 if (len < 0)
632 croak ("length must not be negative");
633
634 { 967 {
635 dREQ; 968 dREQ;
636 969
637 req->type = ix; 970 req->type = ix;
638 req->sv1 = newSVsv (fh); 971 req->sv1 = newSVsv (fh);
639 req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh)) 972 req->int1 = fd;
640 : IoOFP (sv_2io (fh)));
641 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 973 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
642 req->size = len; 974 req->size = len;
643 req->sv2 = SvREFCNT_inc (data); 975 req->sv2 = SvREFCNT_inc (data);
644 req->ptr2 = (char *)svptr + dataoffset; 976 req->ptr2 = (char *)svptr + dataoffset;
645 req->stroffset = dataoffset; 977 req->stroffset = dataoffset;
654 } 986 }
655} 987}
656 988
657void 989void
658aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 990aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
659 PROTOTYPE: $$;$
660 PPCODE: 991 PPCODE:
661{ 992{
662 SV *data; 993 SV *data;
663 dREQ; 994 dREQ;
664 995
668 999
669 REQ_SEND; 1000 REQ_SEND;
670} 1001}
671 1002
672void 1003void
673aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1004aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
674 PROTOTYPE: $$$$;$
675 PPCODE: 1005 PPCODE:
676{ 1006{
1007 int ifd = s_fileno_croak (in_fh , 0);
1008 int ofd = s_fileno_croak (out_fh, 1);
677 dREQ; 1009 dREQ;
678 1010
679 req->type = EIO_SENDFILE; 1011 req->type = EIO_SENDFILE;
680 req->sv1 = newSVsv (out_fh); 1012 req->sv1 = newSVsv (out_fh);
681 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1013 req->int1 = ofd;
682 req->sv2 = newSVsv (in_fh); 1014 req->sv2 = newSVsv (in_fh);
683 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1015 req->int2 = ifd;
684 req->offs = SvVAL64 (in_offset); 1016 req->offs = in_offset;
685 req->size = length; 1017 req->size = length;
686 1018
687 REQ_SEND; 1019 REQ_SEND;
688} 1020}
689 1021
690void 1022void
691aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1023aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
692 PROTOTYPE: $$$;$
693 PPCODE: 1024 PPCODE:
694{ 1025{
1026 int fd = s_fileno_croak (fh, 0);
695 dREQ; 1027 dREQ;
696 1028
697 req->type = EIO_READAHEAD; 1029 req->type = EIO_READAHEAD;
698 req->sv1 = newSVsv (fh); 1030 req->sv1 = newSVsv (fh);
699 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1031 req->int1 = fd;
700 req->offs = SvVAL64 (offset); 1032 req->offs = offset;
701 req->size = length; 1033 req->size = length;
702 1034
703 REQ_SEND; 1035 REQ_SEND;
704} 1036}
705 1037
706void 1038void
707aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1039aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
708 ALIAS: 1040 ALIAS:
709 aio_stat = EIO_STAT 1041 aio_stat = EIO_STAT
710 aio_lstat = EIO_LSTAT 1042 aio_lstat = EIO_LSTAT
1043 aio_statvfs = EIO_STATVFS
711 PPCODE: 1044 PPCODE:
712{ 1045{
713 dREQ; 1046 dREQ;
714 1047
715 req->sv1 = newSVsv (fh_or_path); 1048 req->sv1 = newSVsv (fh_or_path);
719 req->type = ix; 1052 req->type = ix;
720 req->ptr1 = SvPVbyte_nolen (req->sv1); 1053 req->ptr1 = SvPVbyte_nolen (req->sv1);
721 } 1054 }
722 else 1055 else
723 { 1056 {
724 req->type = EIO_FSTAT; 1057 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
725 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1058 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
726 } 1059 }
727 1060
728 REQ_SEND; 1061 REQ_SEND;
729} 1062}
824 1157
825 REQ_SEND; 1158 REQ_SEND;
826} 1159}
827 1160
828void 1161void
1162aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1163 PPCODE:
1164{
1165 dREQ;
1166
1167 req->type = EIO_READDIR;
1168 req->sv1 = newSVsv (pathname);
1169 req->ptr1 = SvPVbyte_nolen (req->sv1);
1170 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1171
1172 if (flags & EIO_READDIR_DENTS)
1173 req->int1 |= EIO_READDIR_CUSTOM2;
1174
1175 REQ_SEND;
1176}
1177
1178void
829aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1179aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
830 ALIAS: 1180 ALIAS:
831 aio_unlink = EIO_UNLINK 1181 aio_unlink = EIO_UNLINK
832 aio_rmdir = EIO_RMDIR 1182 aio_rmdir = EIO_RMDIR
833 aio_readdir = EIO_READDIR 1183 aio_readdir = EIO_READDIR
875 1225
876 REQ_SEND; 1226 REQ_SEND;
877} 1227}
878 1228
879void 1229void
1230aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1231 ALIAS:
1232 aio_mtouch = EIO_MTOUCH
1233 aio_msync = EIO_MSYNC
1234 PPCODE:
1235{
1236 STRLEN svlen;
1237 char *svptr = SvPVbyte (data, svlen);
1238 UV len = SvUV (length);
1239
1240 if (offset < 0)
1241 offset += svlen;
1242
1243 if (offset < 0 || offset > svlen)
1244 croak ("offset outside of scalar");
1245
1246 if (!SvOK (length) || len + offset > svlen)
1247 len = svlen - offset;
1248
1249 {
1250 dREQ;
1251
1252 req->type = ix;
1253 req->sv2 = SvREFCNT_inc (data);
1254 req->ptr2 = (char *)svptr + offset;
1255 req->size = len;
1256 req->int1 = flags;
1257
1258 REQ_SEND;
1259 }
1260}
1261
1262void
1263aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1264 PPCODE:
1265{
1266 STRLEN svlen;
1267 char *svptr = SvPVbyte (data, svlen);
1268 UV len = SvUV (length);
1269
1270 if (offset < 0)
1271 offset += svlen;
1272
1273 if (offset < 0 || offset > svlen)
1274 croak ("offset outside of scalar");
1275
1276 if (!SvOK (length) || len + offset > svlen)
1277 len = svlen - offset;
1278
1279 {
1280 dREQ;
1281
1282 req->type = EIO_MLOCK;
1283 req->sv2 = SvREFCNT_inc (data);
1284 req->ptr2 = (char *)svptr + offset;
1285 req->size = len;
1286
1287 REQ_SEND;
1288 }
1289}
1290
1291void
1292aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1293 PPCODE:
1294{
1295 dREQ;
1296
1297 req->type = EIO_MLOCKALL;
1298 req->int1 = flags;
1299
1300 REQ_SEND;
1301}
1302
1303void
880aio_busy (double delay, SV *callback=&PL_sv_undef) 1304aio_busy (double delay, SV *callback=&PL_sv_undef)
881 PPCODE: 1305 PPCODE:
882{ 1306{
883 dREQ; 1307 dREQ;
884 1308
888 REQ_SEND; 1312 REQ_SEND;
889} 1313}
890 1314
891void 1315void
892aio_group (SV *callback=&PL_sv_undef) 1316aio_group (SV *callback=&PL_sv_undef)
893 PROTOTYPE: ;$
894 PPCODE: 1317 PPCODE:
895{ 1318{
896 dREQ; 1319 dREQ;
897 1320
898 req->type = EIO_GROUP; 1321 req->type = EIO_GROUP;
899 1322
900 eio_submit (req); 1323 req_submit (req);
901 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1324 XPUSHs (req_sv (req, aio_grp_stash));
902} 1325}
903 1326
904void 1327void
905aio_nop (SV *callback=&PL_sv_undef) 1328aio_nop (SV *callback=&PL_sv_undef)
906 ALIAS: 1329 ALIAS:
915 REQ_SEND; 1338 REQ_SEND;
916} 1339}
917 1340
918int 1341int
919aioreq_pri (int pri = 0) 1342aioreq_pri (int pri = 0)
920 PROTOTYPE: ;$
921 CODE: 1343 CODE:
922 RETVAL = next_pri - EIO_PRI_BIAS; 1344 RETVAL = next_pri;
923 if (items > 0) 1345 if (items > 0)
924 { 1346 {
925 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1347 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
926 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX; 1348 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
927 next_pri = pri + EIO_PRI_BIAS; 1349 next_pri = pri;
928 } 1350 }
929 OUTPUT: 1351 OUTPUT:
930 RETVAL 1352 RETVAL
931 1353
932void 1354void
933aioreq_nice (int nice = 0) 1355aioreq_nice (int nice = 0)
934 CODE: 1356 CODE:
935 nice = next_pri - nice; 1357 nice = next_pri - nice;
936 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN; 1358 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
937 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1359 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
938 next_pri = nice + EIO_PRI_BIAS; 1360 next_pri = nice;
939 1361
940void 1362void
941flush () 1363flush ()
942 PROTOTYPE:
943 CODE: 1364 CODE:
944 while (eio_nreqs ()) 1365 while (eio_nreqs ())
945 { 1366 {
946 poll_wait (); 1367 poll_wait ();
947 poll_cb (); 1368 poll_cb ();
948 } 1369 }
949 1370
950int 1371int
951poll() 1372poll ()
952 PROTOTYPE:
953 CODE: 1373 CODE:
954 poll_wait (); 1374 poll_wait ();
955 RETVAL = poll_cb (); 1375 RETVAL = poll_cb ();
956 OUTPUT: 1376 OUTPUT:
957 RETVAL 1377 RETVAL
958 1378
959int 1379int
960poll_fileno() 1380poll_fileno ()
961 PROTOTYPE:
962 CODE: 1381 CODE:
963 RETVAL = respipe [0]; 1382 RETVAL = s_epipe_fd (&respipe);
964 OUTPUT: 1383 OUTPUT:
965 RETVAL 1384 RETVAL
966 1385
967int 1386int
968poll_cb(...) 1387poll_cb (...)
969 PROTOTYPE: 1388 PROTOTYPE:
970 CODE: 1389 CODE:
971 RETVAL = poll_cb (); 1390 RETVAL = poll_cb ();
972 OUTPUT: 1391 OUTPUT:
973 RETVAL 1392 RETVAL
974 1393
975void 1394void
976poll_wait() 1395poll_wait ()
977 PROTOTYPE:
978 CODE: 1396 CODE:
979 poll_wait (); 1397 poll_wait ();
980 1398
981int 1399int
982nreqs() 1400nreqs ()
983 PROTOTYPE:
984 CODE: 1401 CODE:
985 RETVAL = eio_nreqs (); 1402 RETVAL = eio_nreqs ();
986 OUTPUT: 1403 OUTPUT:
987 RETVAL 1404 RETVAL
988 1405
989int 1406int
990nready() 1407nready ()
991 PROTOTYPE:
992 CODE: 1408 CODE:
993 RETVAL = eio_nready (); 1409 RETVAL = eio_nready ();
994 OUTPUT: 1410 OUTPUT:
995 RETVAL 1411 RETVAL
996 1412
997int 1413int
998npending() 1414npending ()
999 PROTOTYPE:
1000 CODE: 1415 CODE:
1001 RETVAL = eio_npending (); 1416 RETVAL = eio_npending ();
1002 OUTPUT: 1417 OUTPUT:
1003 RETVAL 1418 RETVAL
1004 1419
1005int 1420int
1006nthreads() 1421nthreads ()
1007 PROTOTYPE:
1008 CODE: 1422 CODE:
1009 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1423 RETVAL = eio_nthreads ();
1010 RETVAL = started;
1011 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1012 OUTPUT: 1424 OUTPUT:
1013 RETVAL 1425 RETVAL
1426
1427int
1428fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1429 CODE:
1430 RETVAL = posix_fadvise (fh, offset, length, advice);
1431 OUTPUT:
1432 RETVAL
1433
1434ssize_t
1435sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1436 CODE:
1437 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1438 OUTPUT:
1439 RETVAL
1440
1441void
1442mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1443 PPCODE:
1444 sv_unmagic (scalar, MMAP_MAGIC);
1445{
1446 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1447 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1448 if (addr == (void *)-1)
1449 XSRETURN_NO;
1450
1451 sv_force_normal (scalar);
1452
1453 /* we store the length in mg_obj, as namlen is I32 :/ */
1454 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1455 ->mg_obj = (SV *)length;
1456
1457 SvUPGRADE (scalar, SVt_PV); /* nop... */
1458
1459 if (!(prot & PROT_WRITE))
1460 SvREADONLY_on (scalar);
1461
1462 if (SvLEN (scalar))
1463 Safefree (SvPVX (scalar));
1464
1465 SvPVX (scalar) = (char *)addr;
1466 SvCUR_set (scalar, length);
1467 SvLEN_set (scalar, 0);
1468 SvPOK_only (scalar);
1469
1470 XSRETURN_YES;
1471}
1472
1473void
1474munmap (SV *scalar)
1475 CODE:
1476 sv_unmagic (scalar, MMAP_MAGIC);
1477
1478int
1479madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1480 ALIAS:
1481 mprotect = 1
1482 CODE:
1483{
1484 STRLEN svlen;
1485 void *addr = SvPVbyte (scalar, svlen);
1486 size_t len = SvUV (length);
1487
1488 if (offset < 0)
1489 offset += svlen;
1490
1491 if (offset < 0 || offset > svlen)
1492 croak ("offset outside of scalar");
1493
1494 if (!SvOK (length) || len + offset > svlen)
1495 len = svlen - offset;
1496
1497 addr = (void *)(((intptr_t)addr) + offset);
1498 eio_page_align (&addr, &len);
1499
1500 switch (ix)
1501 {
1502 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1503 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1504 }
1505}
1506 OUTPUT:
1507 RETVAL
1508
1509int
1510munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1511 CODE:
1512{
1513 STRLEN svlen;
1514 void *addr = SvPVbyte (scalar, svlen);
1515 size_t len = SvUV (length);
1516
1517 if (offset < 0)
1518 offset += svlen;
1519
1520 if (offset < 0 || offset > svlen)
1521 croak ("offset outside of scalar");
1522
1523 if (!SvOK (length) || len + offset > svlen)
1524 len = svlen - offset;
1525
1526 addr = (void *)(((intptr_t)addr) + offset);
1527 eio_page_align (&addr, &len);
1528#if _POSIX_MEMLOCK
1529 RETVAL = munlock (addr, len);
1530#else
1531 RETVAL = ((errno = ENOSYS), -1);
1532#endif
1533}
1534 OUTPUT:
1535 RETVAL
1536
1537int
1538munlockall ()
1539 CODE:
1540#if _POSIX_MEMLOCK
1541 munlockall ();
1542#else
1543 RETVAL = -1;
1544 errno = ENOSYS;
1545#endif
1546 OUTPUT:
1547 RETVAL
1014 1548
1015void _on_next_submit (SV *cb) 1549void _on_next_submit (SV *cb)
1016 CODE: 1550 CODE:
1017 SvREFCNT_dec (on_next_submit); 1551 SvREFCNT_dec (on_next_submit);
1018 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; 1552 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1026 CODE: 1560 CODE:
1027 eio_cancel (req); 1561 eio_cancel (req);
1028 1562
1029void 1563void
1030cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1564cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1031 CODE: 1565 PPCODE:
1566{
1567 if (GIMME_V != G_VOID)
1568 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1569
1570 if (items > 1)
1571 {
1572 SV *cb_cv =get_cb (callback);
1573
1032 SvREFCNT_dec (req->callback); 1574 SvREFCNT_dec (req->callback);
1033 req->callback = newSVsv (callback); 1575 req->callback = SvREFCNT_inc (cb_cv);
1576 }
1577}
1034 1578
1035MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1579MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1036 1580
1037void 1581void
1038add (aio_req grp, ...) 1582add (aio_req grp, ...)
1070 AV *av; 1614 AV *av;
1071 1615
1072 grp->errorno = errno; 1616 grp->errorno = errno;
1073 1617
1074 av = newAV (); 1618 av = newAV ();
1619 av_extend (av, items - 1);
1075 1620
1076 for (i = 1; i < items; ++i ) 1621 for (i = 1; i < items; ++i )
1077 av_push (av, newSVsv (ST (i))); 1622 av_push (av, newSVsv (ST (i)));
1078 1623
1079 SvREFCNT_dec (grp->sv1); 1624 SvREFCNT_dec (grp->sv1);
1093void 1638void
1094feed (aio_req grp, SV *callback=&PL_sv_undef) 1639feed (aio_req grp, SV *callback=&PL_sv_undef)
1095 CODE: 1640 CODE:
1096{ 1641{
1097 SvREFCNT_dec (grp->sv2); 1642 SvREFCNT_dec (grp->sv2);
1098 grp->sv2 = newSVsv (callback); 1643 grp->sv2 = newSVsv (callback);
1644 grp->feed = aio_grp_feed;
1099 1645
1100 if (grp->int2 <= 0) 1646 if (grp->int2 <= 0)
1101 grp->int2 = 2; 1647 grp->int2 = 2;
1102 1648
1103 eio_grp_limit (grp, grp->int2); 1649 eio_grp_limit (grp, grp->int2);

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