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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 1.175 by root, Wed Dec 1 04:43:12 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#endif
128#ifndef POSIX_FADV_SEQUENTIAL
129# define POSIX_FADV_SEQUENTIAL 0
130#endif
131#ifndef POSIX_FADV_RANDOM
132# define POSIX_FADV_RANDOM 0
133#endif
134#ifndef POSIX_FADV_NOREUSE
135# define POSIX_FADV_NOREUSE 0
136#endif
137#ifndef POSIX_FADV_WILLNEED
138# define POSIX_FADV_WILLNEED 0
139#endif
140#ifndef POSIX_FADV_DONTNEED
141# define POSIX_FADV_DONTNEED 0
142#endif
143
144#if !HAVE_POSIX_FADVISE
145# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
146#endif
147
148#ifndef POSIX_MADV_NORMAL
149# define POSIX_MADV_NORMAL 0
150#endif
151#ifndef POSIX_MADV_SEQUENTIAL
152# define POSIX_MADV_SEQUENTIAL 0
153#endif
154#ifndef POSIX_MADV_RANDOM
155# define POSIX_MADV_RANDOM 0
156#endif
157#ifndef POSIX_MADV_WILLNEED
158# define POSIX_MADV_WILLNEED 0
159#endif
160#ifndef POSIX_MADV_DONTNEED
161# define POSIX_MADV_DONTNEED 0
162#endif
163
164#if !HAVE_POSIX_MADVISE
165# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
166#endif
167
168#ifndef PROT_NONE
169# define PROT_NONE 0
170#endif
171#ifndef PROT_READ
172# define PROT_READ 0
173#endif
174#ifndef PROT_WRITE
175# define PROT_READ 0
176#endif
177#ifndef PROT_EXEC
178# define PROT_EXEC 0
179#endif
180
181#ifndef ST_NODEV
182# define ST_NODEV 0
183#endif
184#ifndef ST_NOEXEC
185# define ST_NOEXEC 0
186#endif
187#ifndef ST_SYNCHRONOUS
188# define ST_SYNCHRONOUS 0
189#endif
190#ifndef ST_MANDLOCK
191# define ST_MANDLOCK 0
192#endif
193#ifndef ST_WRITE
194# define ST_WRITE 0
195#endif
196#ifndef ST_APPEND
197# define ST_APPEND 0
198#endif
199#ifndef ST_IMMUTABLE
200# define ST_IMMUTABLE 0
201#endif
202#ifndef ST_NOATIME
203# define ST_NOATIME 0
204#endif
205#ifndef ST_NODIRATIME
206# define ST_NODIRATIME 0
207#endif
208#ifndef ST_RELATIME
209# define ST_RELATIME 0
210#endif
211
212#ifndef MAP_ANONYMOUS
213# ifdef MAP_ANON
214# define MAP_ANONYMOUS MAP_ANON
215# else
216# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
217# endif
218#endif
219#ifndef MAP_HUGETLB
220# define MAP_HUGETLB 0
221#endif
222#ifndef MAP_LOCKED
223# define MAP_LOCKED 0
224#endif
225#ifndef MAP_NORESERVE
226# define MAP_NORESERVE 0
227#endif
228#ifndef MAP_POPULATE
229# define MAP_POPULATE 0
230#endif
231#ifndef MAP_NONBLOCK
232# define MAP_NONBLOCK 0
233#endif
234
235#ifndef PAGESIZE
236# define PAGESIZE sysconf (_SC_PAGESIZE)
237#endif
238
95static int req_invoke (eio_req *req); 239static int req_invoke (eio_req *req);
96#define EIO_FINISH(req) req_invoke (req) 240#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); 241static void req_destroy (eio_req *grp);
100#define EIO_DESTROY(req) req_destroy (req) 242#define EIO_DESTROY(req) req_destroy (req)
101 243
102enum { 244enum {
103 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ 245 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
110 252
111static SV *on_next_submit; 253static SV *on_next_submit;
112static int next_pri = EIO_PRI_DEFAULT; 254static int next_pri = EIO_PRI_DEFAULT;
113static int max_outstanding; 255static int max_outstanding;
114 256
115static int respipe_osf [2], respipe [2] = { -1, -1 }; 257static s_epipe respipe;
116 258
117static void req_destroy (aio_req req); 259static void req_destroy (aio_req req);
118static void req_cancel (aio_req req); 260static void req_cancel (aio_req req);
119 261
120static void want_poll (void) 262static void want_poll (void)
121{ 263{
122 /* write a dummy byte to the pipe so fh becomes ready */ 264 /* write a dummy byte to the pipe so fh becomes ready */
123 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1); 265 s_epipe_signal (&respipe);
124} 266}
125 267
126static void done_poll (void) 268static void done_poll (void)
127{ 269{
128 /* read any signals sent by the worker threads */ 270 /* read any signals sent by the worker threads */
129 char buf [4]; 271 s_epipe_drain (&respipe);
130 while (respipe_read (respipe [0], buf, 4) == 4)
131 ;
132} 272}
133 273
134/* must be called at most once */ 274/* must be called at most once */
135static SV *req_sv (aio_req req, const char *klass) 275static SV *req_sv (aio_req req, HV *stash)
136{ 276{
137 if (!req->self) 277 if (!req->self)
138 { 278 {
139 req->self = (SV *)newHV (); 279 req->self = (SV *)newHV ();
140 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 280 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
141 } 281 }
142 282
143 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 283 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
144} 284}
145 285
146static aio_req SvAIO_REQ (SV *sv) 286static aio_req SvAIO_REQ (SV *sv)
147{ 287{
148 MAGIC *mg; 288 MAGIC *mg;
149 289
150 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 290 if (!SvROK (sv)
291 || (SvSTASH (SvRV (sv)) != aio_grp_stash
292 && SvSTASH (SvRV (sv)) != aio_req_stash
293 && !sv_derived_from (sv, "IO::AIO::REQ")))
151 croak ("object of class " AIO_REQ_KLASS " expected"); 294 croak ("object of class IO::AIO::REQ expected");
152 295
153 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 296 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
154 297
155 return mg ? (aio_req)mg->mg_ptr : 0; 298 return mg ? (aio_req)mg->mg_ptr : 0;
156} 299}
162 dSP; 305 dSP;
163 306
164 ENTER; 307 ENTER;
165 SAVETMPS; 308 SAVETMPS;
166 PUSHMARK (SP); 309 PUSHMARK (SP);
167 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 310 XPUSHs (req_sv (grp, aio_grp_stash));
168 PUTBACK; 311 PUTBACK;
169 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 312 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
170 SPAGAIN; 313 SPAGAIN;
171 FREETMPS; 314 FREETMPS;
172 LEAVE; 315 LEAVE;
175 318
176static void req_submit (eio_req *req) 319static void req_submit (eio_req *req)
177{ 320{
178 eio_submit (req); 321 eio_submit (req);
179 322
180 if (on_next_submit) 323 if (expect_false (on_next_submit))
181 { 324 {
182 dSP; 325 dSP;
183 SV *cb = sv_2mortal (on_next_submit); 326 SV *cb = sv_2mortal (on_next_submit);
184 327
185 on_next_submit = 0; 328 on_next_submit = 0;
190 } 333 }
191} 334}
192 335
193static int req_invoke (eio_req *req) 336static int req_invoke (eio_req *req)
194{ 337{
195 dSP;
196
197 if (req->flags & FLAG_SV2_RO_OFF) 338 if (req->flags & FLAG_SV2_RO_OFF)
198 SvREADONLY_off (req->sv2); 339 SvREADONLY_off (req->sv2);
199 340
200 if (!EIO_CANCELLED (req) && SvOK (req->callback)) 341 if (!EIO_CANCELLED (req) && req->callback)
201 { 342 {
343 dSP;
344 static SV *sv_result_cache; /* caches the result integer SV */
345 SV *sv_result;
346
202 ENTER; 347 ENTER;
203 SAVETMPS; 348 SAVETMPS;
204 PUSHMARK (SP); 349 PUSHMARK (SP);
205 EXTEND (SP, 1); 350 EXTEND (SP, 1);
351
352 /* do not recreate the result IV from scratch each time */
353 if (expect_true (sv_result_cache))
354 {
355 sv_result = sv_result_cache; sv_result_cache = 0;
356 SvIV_set (sv_result, req->result);
357 }
358 else
359 {
360 sv_result = newSViv (req->result);
361 SvREADONLY_on (sv_result);
362 }
206 363
207 switch (req->type) 364 switch (req->type)
208 { 365 {
209 case EIO_READDIR: 366 case EIO_READDIR:
210 { 367 {
211 SV *rv = &PL_sv_undef; 368 SV *rv = &PL_sv_undef;
212 369
213 if (req->result >= 0) 370 if (req->result >= 0)
214 { 371 {
215 int i; 372 int i;
216 char *buf = req->ptr2; 373 char *names = (char *)req->ptr2;
374 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
217 AV *av = newAV (); 375 AV *av = newAV ();
218 376
219 av_extend (av, req->result - 1); 377 av_extend (av, req->result - 1);
220 378
221 for (i = 0; i < req->result; ++i) 379 for (i = 0; i < req->result; ++i)
222 { 380 {
223 SV *sv = newSVpv (buf, 0); 381 if (req->int1 & EIO_READDIR_DENTS)
382 {
383 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
224 384
385 if (req->int1 & EIO_READDIR_CUSTOM2)
386 {
387 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
388 AV *avent = newAV ();
389
390 av_extend (avent, 2);
391
392 if (!sv_type [ent->type])
393 {
394 sv_type [ent->type] = newSViv (ent->type);
395 SvREADONLY_on (sv_type [ent->type]);
396 }
397
398 av_store (avent, 0, namesv);
399 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
400 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
401
402 av_store (av, i, newRV_noinc ((SV *)avent));
403 }
404 else
225 av_store (av, i, sv); 405 av_store (av, i, namesv);
406
407 ++ent;
408 }
409 else
410 {
411 SV *name = newSVpv (names, 0);
412 av_store (av, i, name);
226 buf += SvCUR (sv) + 1; 413 names += SvCUR (name) + 1;
414 }
227 } 415 }
228 416
229 rv = sv_2mortal (newRV_noinc ((SV *)av)); 417 rv = sv_2mortal (newRV_noinc ((SV *)av));
230 } 418 }
231 419
232 PUSHs (rv); 420 PUSHs (rv);
421
422 if (req->int1 & EIO_READDIR_CUSTOM1)
423 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
233 } 424 }
234 break; 425 break;
235 426
236 case EIO_OPEN: 427 case EIO_OPEN:
237 { 428 {
243 GV *gv = (GV *)sv_newmortal (); 434 GV *gv = (GV *)sv_newmortal ();
244 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); 435 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
245 char sym [64]; 436 char sym [64];
246 int symlen; 437 int symlen;
247 438
248 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); 439 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
249 gv_init (gv, stash, sym, symlen, 0); 440 gv_init (gv, aio_stash, sym, symlen, 0);
250 441
251 symlen = snprintf ( 442 symlen = snprintf (
252 sym, 443 sym,
253 sizeof (sym), 444 sizeof (sym),
254 "%s&=%d", 445 "%s&=%d",
255 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", 446 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
256 req->result 447 (int)req->result
257 ); 448 );
258 449
259 if (do_open (gv, sym, symlen, 0, 0, 0, 0)) 450 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
260 fh = (SV *)gv; 451 fh = (SV *)gv;
261 } 452 }
262 453
263 PUSHs (fh); 454 PUSHs (fh);
264 } 455 }
456 break;
457
458 case EIO_STATVFS:
459 case EIO_FSTATVFS:
460 {
461 SV *rv = &PL_sv_undef;
462
463 if (req->result >= 0)
464 {
465 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
466 HV *hv = newHV ();
467
468 rv = sv_2mortal (newRV_noinc ((SV *)hv));
469
470 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
471 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
472 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
473 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
474 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
475 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
476 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
477 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
478 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
479 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
480 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
481 }
482
483 PUSHs (rv);
484 }
485
265 break; 486 break;
266 487
267 case EIO_GROUP: 488 case EIO_GROUP:
268 req->int1 = 2; /* mark group as finished */ 489 req->int1 = 2; /* mark group as finished */
269 490
291 case EIO_LSTAT: 512 case EIO_LSTAT:
292 case EIO_FSTAT: 513 case EIO_FSTAT:
293 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; 514 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
294 PL_laststatval = req->result; 515 PL_laststatval = req->result;
295 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); 516 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
296 PUSHs (sv_2mortal (newSViv (req->result))); 517 PUSHs (sv_result);
297 break; 518 break;
298 519
299 case EIO_READ: 520 case EIO_READ:
521 {
300 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 522 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
301 *SvEND (req->sv2) = 0; 523 *SvEND (req->sv2) = 0;
302 PUSHs (sv_2mortal (newSViv (req->result))); 524 SvPOK_only (req->sv2);
525 SvSETMAGIC (req->sv2);
526 PUSHs (sv_result);
527 }
303 break; 528 break;
304 529
305 case EIO_DUP2: 530 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */
306 if (req->result > 0) 531 if (req->result > 0)
307 req->result = 0; 532 SvIV_set (sv_result, 0);
308 /* FALLTHROUGH */ 533 /* FALLTHROUGH */
309 534
310 default: 535 default:
311 PUSHs (sv_2mortal (newSViv (req->result))); 536 PUSHs (sv_result);
312 break; 537 break;
313 } 538 }
314 539
315 errno = req->errorno; 540 errno = req->errorno;
316 541
317 PUTBACK; 542 PUTBACK;
318 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); 543 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
319 SPAGAIN; 544 SPAGAIN;
545
546 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
547 SvREFCNT_dec (sv_result);
548 else
549 sv_result_cache = sv_result;
320 550
321 FREETMPS; 551 FREETMPS;
322 LEAVE; 552 LEAVE;
323 553
324 PUTBACK; 554 PUTBACK;
353 grp->sv2 = 0; 583 grp->sv2 = 0;
354 584
355 eio_grp_cancel (grp); 585 eio_grp_cancel (grp);
356} 586}
357 587
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 588static void
365create_respipe (void) 589create_respipe (void)
366{ 590{
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)) 591 if (s_epipe_renew (&respipe))
376#endif
377 croak ("unable to initialize result pipe"); 592 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} 593}
401 594
402static void poll_wait (void) 595static void poll_wait (void)
403{ 596{
404 fd_set rfd;
405
406 while (eio_nreqs ()) 597 while (eio_nreqs ())
407 { 598 {
408 int size; 599 int size;
409 600
410 X_LOCK (reslock); 601 X_LOCK (reslock);
414 if (size) 605 if (size)
415 return; 606 return;
416 607
417 etp_maybe_start_thread (); 608 etp_maybe_start_thread ();
418 609
419 FD_ZERO (&rfd); 610 s_epipe_wait (&respipe);
420 FD_SET (respipe [0], &rfd);
421
422 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
423 } 611 }
424} 612}
425 613
426static int poll_cb (void) 614static int poll_cb (void)
427{ 615{
442static void atfork_child (void) 630static void atfork_child (void)
443{ 631{
444 create_respipe (); 632 create_respipe ();
445} 633}
446 634
635/*****************************************************************************/
636
637#if !_POSIX_MAPPED_FILES
638# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
639# define munmap(addr,length) (errno = ENOSYS, -1)
640# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
641# define PROT_NONE 0
642# define PROT_WRITE 0
643# define MAP_PRIVATE 0
644# define MAP_SHARED 0
645# define MAP_FIXED 0
646#endif
647
648#define MMAP_MAGIC PERL_MAGIC_ext
649
650static int
651mmap_free (pTHX_ SV *sv, MAGIC *mg)
652{
653 int old_errno = errno;
654 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
655 errno = old_errno;
656
657 mg->mg_obj = 0; /* just in case */
658
659 SvREADONLY_off (sv);
660
661 if (SvPVX (sv) != mg->mg_ptr)
662 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
663
664 SvCUR_set (sv, 0);
665 SvPVX (sv) = 0;
666 SvOK_off (sv);
667
668 return 0;
669}
670
671static MGVTBL mmap_vtbl = {
672 0, 0, 0, 0, mmap_free
673};
674
675/*****************************************************************************/
676
677static SV *
678get_cb (SV *cb_sv)
679{
680 SvGETMAGIC (cb_sv);
681 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
682}
683
447#define dREQ \ 684#define dREQ \
685 SV *cb_cv; \
448 aio_req req; \ 686 aio_req req; \
449 int req_pri = next_pri; \ 687 int req_pri = next_pri; \
450 next_pri = EIO_PRI_DEFAULT; \ 688 next_pri = EIO_PRI_DEFAULT; \
451 \ 689 \
452 if (SvOK (callback) && !SvROK (callback)) \ 690 cb_cv = get_cb (callback); \
453 croak ("callback must be undef or of reference type"); \
454 \ 691 \
455 Newz (0, req, 1, eio_req); \ 692 Newz (0, req, 1, eio_req); \
456 if (!req) \ 693 if (!req) \
457 croak ("out of memory during eio_req allocation"); \ 694 croak ("out of memory during eio_req allocation"); \
458 \ 695 \
459 req->callback = newSVsv (callback); \ 696 req->callback = SvREFCNT_inc (cb_cv); \
460 req->pri = req_pri 697 req->pri = req_pri
461 698
462#define REQ_SEND \ 699#define REQ_SEND \
700 PUTBACK; \
463 req_submit (req); \ 701 req_submit (req); \
702 SPAGAIN; \
464 \ 703 \
465 if (GIMME_V != G_VOID) \ 704 if (GIMME_V != G_VOID) \
466 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 705 XPUSHs (req_sv (req, aio_req_stash));
467 706
468MODULE = IO::AIO PACKAGE = IO::AIO 707MODULE = IO::AIO PACKAGE = IO::AIO
469 708
470PROTOTYPES: ENABLE 709PROTOTYPES: ENABLE
471 710
472BOOT: 711BOOT:
473{ 712{
474 stash = gv_stashpv ("IO::AIO", 1); 713 static const struct {
475 714 const char *name;
476 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 715 IV iv;
477 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 716 } *civ, const_iv[] = {
478 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 717# define const_niv(name, value) { # name, (IV) value },
479 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); 718# define const_iv(name) { # name, (IV) name },
480 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); 719# define const_eio(name) { # name, (IV) EIO_ ## name },
720 const_iv (EXDEV)
721 const_iv (ENOSYS)
722 const_iv (O_RDONLY)
723 const_iv (O_WRONLY)
724 const_iv (O_RDWR)
725 const_iv (O_CREAT)
726 const_iv (O_TRUNC)
727 const_iv (O_EXCL)
728 const_iv (O_APPEND)
481#ifndef _WIN32 729#ifndef _WIN32
482 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); 730 const_iv (S_IFIFO)
483#endif 731#endif
732 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
733 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
734 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
735 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
736 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
737 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
484 738
739 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
740 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
741 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
742 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
743 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
744
745 const_iv (ST_RDONLY)
746 const_iv (ST_NOSUID)
747 const_iv (ST_NODEV)
748 const_iv (ST_NOEXEC)
749 const_iv (ST_SYNCHRONOUS)
750 const_iv (ST_MANDLOCK)
751 const_iv (ST_WRITE)
752 const_iv (ST_APPEND)
753 const_iv (ST_IMMUTABLE)
754 const_iv (ST_NOATIME)
755 const_iv (ST_NODIRATIME)
756 const_iv (ST_RELATIME)
757
758 const_iv (PROT_NONE)
759 const_iv (PROT_EXEC)
760 const_iv (PROT_READ)
761 const_iv (PROT_WRITE)
762
763 /*const_iv (MAP_FIXED)*/
764 const_iv (MAP_PRIVATE)
765 const_iv (MAP_SHARED)
766 const_iv (MAP_ANONYMOUS)
767
768 /* linuxish */
769 const_iv (MAP_HUGETLB)
770 const_iv (MAP_LOCKED)
771 const_iv (MAP_NORESERVE)
772 const_iv (MAP_POPULATE)
773 const_iv (MAP_NONBLOCK)
774
775 const_eio (MCL_FUTURE)
776 const_eio (MCL_CURRENT)
777
778 const_eio (MS_ASYNC)
779 const_eio (MS_INVALIDATE)
780 const_eio (MS_SYNC)
781
782 const_eio (MT_MODIFY)
783
784 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
785 const_eio (SYNC_FILE_RANGE_WRITE)
786 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
787
788 const_eio (READDIR_DENTS)
789 const_eio (READDIR_DIRS_FIRST)
790 const_eio (READDIR_STAT_ORDER)
791 const_eio (READDIR_FOUND_UNKNOWN)
792
793 const_eio (DT_UNKNOWN)
794 const_eio (DT_FIFO)
795 const_eio (DT_CHR)
796 const_eio (DT_DIR)
797 const_eio (DT_BLK)
798 const_eio (DT_REG)
799 const_eio (DT_LNK)
800 const_eio (DT_SOCK)
801 const_eio (DT_WHT)
802 };
803
804 aio_stash = gv_stashpv ("IO::AIO" , 1);
805 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
806 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
807
808 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
809 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
810
811 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
812
485 create_respipe (); 813 create_respipe ();
486 814
487 if (eio_init (want_poll, done_poll) < 0) 815 if (eio_init (want_poll, done_poll) < 0)
488 croak ("IO::AIO: unable to initialise eio library"); 816 croak ("IO::AIO: unable to initialise eio library");
489 817
490 /* atfork child called in fifo order, so before eio's handler */ 818 /* atfork child called in fifo order, so before eio's handler */
491 X_THREAD_ATFORK (0, 0, atfork_child); 819 X_THREAD_ATFORK (0, 0, atfork_child);
492} 820}
493 821
494void 822void
495max_poll_reqs (int nreqs) 823max_poll_reqs (int nreqs)
496 PROTOTYPE: $ 824 PROTOTYPE: $
527 CODE: 855 CODE:
528 max_outstanding = maxreqs; 856 max_outstanding = maxreqs;
529 857
530void 858void
531aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 859aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
532 PROTOTYPE: $$$;$
533 PPCODE: 860 PPCODE:
534{ 861{
535 dREQ; 862 dREQ;
536 863
537 req->type = EIO_OPEN; 864 req->type = EIO_OPEN;
543 REQ_SEND; 870 REQ_SEND;
544} 871}
545 872
546void 873void
547aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 874aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
548 PROTOTYPE: $;$
549 ALIAS: 875 ALIAS:
550 aio_fsync = EIO_FSYNC 876 aio_fsync = EIO_FSYNC
551 aio_fdatasync = EIO_FDATASYNC 877 aio_fdatasync = EIO_FDATASYNC
552 PPCODE: 878 PPCODE:
553{ 879{
880 int fd = s_fileno_croak (fh, 0);
554 dREQ; 881 dREQ;
555 882
556 req->type = ix; 883 req->type = ix;
557 req->sv1 = newSVsv (fh); 884 req->sv1 = newSVsv (fh);
558 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 885 req->int1 = fd;
559 886
560 REQ_SEND (req); 887 REQ_SEND (req);
561} 888}
562 889
563void 890void
891aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
892 PPCODE:
893{
894 int fd = s_fileno_croak (fh, 0);
895 dREQ;
896
897 req->type = EIO_SYNC_FILE_RANGE;
898 req->sv1 = newSVsv (fh);
899 req->int1 = fd;
900 req->offs = offset;
901 req->size = nbytes;
902 req->int2 = flags;
903
904 REQ_SEND (req);
905}
906
907void
564aio_close (SV *fh, SV *callback=&PL_sv_undef) 908aio_close (SV *fh, SV *callback=&PL_sv_undef)
565 PROTOTYPE: $;$
566 PPCODE: 909 PPCODE:
567{ 910{
568 static int close_pipe = -1; /* dummy fd to close fds via dup2 */ 911 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
912 int fd = s_fileno_croak (fh, 0);
569 dREQ; 913 dREQ;
570 914
571 if (close_pipe < 0) 915 if (close_pipe < 0)
572 { 916 {
573 int pipefd [2]; 917 int pipefd [2];
581 } 925 }
582 926
583 req->type = EIO_DUP2; 927 req->type = EIO_DUP2;
584 req->int1 = close_pipe; 928 req->int1 = close_pipe;
585 req->sv2 = newSVsv (fh); 929 req->sv2 = newSVsv (fh);
586 req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh))); 930 req->int2 = fd;
587 931
588 REQ_SEND (req); 932 REQ_SEND (req);
589} 933}
590 934
591void 935void
592aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 936aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
593 ALIAS: 937 ALIAS:
594 aio_read = EIO_READ 938 aio_read = EIO_READ
595 aio_write = EIO_WRITE 939 aio_write = EIO_WRITE
596 PROTOTYPE: $$$$$;$
597 PPCODE: 940 PPCODE:
598{ 941{
599 STRLEN svlen; 942 STRLEN svlen;
943 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
600 char *svptr = SvPVbyte (data, svlen); 944 char *svptr = SvPVbyte (data, svlen);
601 UV len = SvUV (length); 945 UV len = SvUV (length);
602
603 SvUPGRADE (data, SVt_PV);
604 SvPOK_on (data);
605 946
606 if (dataoffset < 0) 947 if (dataoffset < 0)
607 dataoffset += svlen; 948 dataoffset += svlen;
608 949
609 if (dataoffset < 0 || dataoffset > svlen) 950 if (dataoffset < 0 || dataoffset > svlen)
615 if (!SvOK (length) || len + dataoffset > svlen) 956 if (!SvOK (length) || len + dataoffset > svlen)
616 len = svlen - dataoffset; 957 len = svlen - dataoffset;
617 } 958 }
618 else 959 else
619 { 960 {
620 /* read: grow scalar as necessary */ 961 /* read: check type and grow scalar as necessary */
962 SvUPGRADE (data, SVt_PV);
621 svptr = SvGROW (data, len + dataoffset + 1); 963 svptr = SvGROW (data, len + dataoffset + 1);
622 } 964 }
623 965
624 if (len < 0)
625 croak ("length must not be negative");
626
627 { 966 {
628 dREQ; 967 dREQ;
629 968
630 req->type = ix; 969 req->type = ix;
631 req->sv1 = newSVsv (fh); 970 req->sv1 = newSVsv (fh);
632 req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh)) 971 req->int1 = fd;
633 : IoOFP (sv_2io (fh)));
634 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 972 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
635 req->size = len; 973 req->size = len;
636 req->sv2 = SvREFCNT_inc (data); 974 req->sv2 = SvREFCNT_inc (data);
637 req->ptr2 = (char *)svptr + dataoffset; 975 req->ptr2 = (char *)svptr + dataoffset;
638 req->stroffset = dataoffset; 976 req->stroffset = dataoffset;
647 } 985 }
648} 986}
649 987
650void 988void
651aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 989aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
652 PROTOTYPE: $$;$
653 PPCODE: 990 PPCODE:
654{ 991{
655 SV *data; 992 SV *data;
656 dREQ; 993 dREQ;
657 994
661 998
662 REQ_SEND; 999 REQ_SEND;
663} 1000}
664 1001
665void 1002void
666aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) 1003aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
667 PROTOTYPE: $$$$;$
668 PPCODE: 1004 PPCODE:
669{ 1005{
1006 int ifd = s_fileno_croak (in_fh , 0);
1007 int ofd = s_fileno_croak (out_fh, 1);
670 dREQ; 1008 dREQ;
671 1009
672 req->type = EIO_SENDFILE; 1010 req->type = EIO_SENDFILE;
673 req->sv1 = newSVsv (out_fh); 1011 req->sv1 = newSVsv (out_fh);
674 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1012 req->int1 = ofd;
675 req->sv2 = newSVsv (in_fh); 1013 req->sv2 = newSVsv (in_fh);
676 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1014 req->int2 = ifd;
677 req->offs = SvVAL64 (in_offset); 1015 req->offs = in_offset;
678 req->size = length; 1016 req->size = length;
679 1017
680 REQ_SEND; 1018 REQ_SEND;
681} 1019}
682 1020
683void 1021void
684aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) 1022aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
685 PROTOTYPE: $$$;$
686 PPCODE: 1023 PPCODE:
687{ 1024{
1025 int fd = s_fileno_croak (fh, 0);
688 dREQ; 1026 dREQ;
689 1027
690 req->type = EIO_READAHEAD; 1028 req->type = EIO_READAHEAD;
691 req->sv1 = newSVsv (fh); 1029 req->sv1 = newSVsv (fh);
692 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1030 req->int1 = fd;
693 req->offs = SvVAL64 (offset); 1031 req->offs = offset;
694 req->size = length; 1032 req->size = length;
695 1033
696 REQ_SEND; 1034 REQ_SEND;
697} 1035}
698 1036
699void 1037void
700aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1038aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
701 ALIAS: 1039 ALIAS:
702 aio_stat = EIO_STAT 1040 aio_stat = EIO_STAT
703 aio_lstat = EIO_LSTAT 1041 aio_lstat = EIO_LSTAT
1042 aio_statvfs = EIO_STATVFS
704 PPCODE: 1043 PPCODE:
705{ 1044{
706 dREQ; 1045 dREQ;
707 1046
708 req->sv1 = newSVsv (fh_or_path); 1047 req->sv1 = newSVsv (fh_or_path);
712 req->type = ix; 1051 req->type = ix;
713 req->ptr1 = SvPVbyte_nolen (req->sv1); 1052 req->ptr1 = SvPVbyte_nolen (req->sv1);
714 } 1053 }
715 else 1054 else
716 { 1055 {
717 req->type = EIO_FSTAT; 1056 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
718 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1057 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
719 } 1058 }
720 1059
721 REQ_SEND; 1060 REQ_SEND;
722} 1061}
817 1156
818 REQ_SEND; 1157 REQ_SEND;
819} 1158}
820 1159
821void 1160void
1161aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1162 PPCODE:
1163{
1164 dREQ;
1165
1166 req->type = EIO_READDIR;
1167 req->sv1 = newSVsv (pathname);
1168 req->ptr1 = SvPVbyte_nolen (req->sv1);
1169 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1170
1171 if (flags & EIO_READDIR_DENTS)
1172 req->int1 |= EIO_READDIR_CUSTOM2;
1173
1174 REQ_SEND;
1175}
1176
1177void
822aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1178aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
823 ALIAS: 1179 ALIAS:
824 aio_unlink = EIO_UNLINK 1180 aio_unlink = EIO_UNLINK
825 aio_rmdir = EIO_RMDIR 1181 aio_rmdir = EIO_RMDIR
826 aio_readdir = EIO_READDIR 1182 aio_readdir = EIO_READDIR
868 1224
869 REQ_SEND; 1225 REQ_SEND;
870} 1226}
871 1227
872void 1228void
1229aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1230 ALIAS:
1231 aio_mtouch = EIO_MTOUCH
1232 aio_msync = EIO_MSYNC
1233 PPCODE:
1234{
1235 STRLEN svlen;
1236 char *svptr = SvPVbyte (data, svlen);
1237 UV len = SvUV (length);
1238
1239 if (offset < 0)
1240 offset += svlen;
1241
1242 if (offset < 0 || offset > svlen)
1243 croak ("offset outside of scalar");
1244
1245 if (!SvOK (length) || len + offset > svlen)
1246 len = svlen - offset;
1247
1248 {
1249 dREQ;
1250
1251 req->type = ix;
1252 req->sv2 = SvREFCNT_inc (data);
1253 req->ptr2 = (char *)svptr + offset;
1254 req->size = len;
1255 req->int1 = flags;
1256
1257 REQ_SEND;
1258 }
1259}
1260
1261void
1262aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1263 PPCODE:
1264{
1265 STRLEN svlen;
1266 char *svptr = SvPVbyte (data, svlen);
1267 UV len = SvUV (length);
1268
1269 if (offset < 0)
1270 offset += svlen;
1271
1272 if (offset < 0 || offset > svlen)
1273 croak ("offset outside of scalar");
1274
1275 if (!SvOK (length) || len + offset > svlen)
1276 len = svlen - offset;
1277
1278 {
1279 dREQ;
1280
1281 req->type = EIO_MLOCK;
1282 req->sv2 = SvREFCNT_inc (data);
1283 req->ptr2 = (char *)svptr + offset;
1284 req->size = len;
1285
1286 REQ_SEND;
1287 }
1288}
1289
1290void
1291aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1292 PPCODE:
1293{
1294 dREQ;
1295
1296 req->type = EIO_MLOCKALL;
1297 req->int1 = flags;
1298
1299 REQ_SEND;
1300}
1301
1302void
873aio_busy (double delay, SV *callback=&PL_sv_undef) 1303aio_busy (double delay, SV *callback=&PL_sv_undef)
874 PPCODE: 1304 PPCODE:
875{ 1305{
876 dREQ; 1306 dREQ;
877 1307
881 REQ_SEND; 1311 REQ_SEND;
882} 1312}
883 1313
884void 1314void
885aio_group (SV *callback=&PL_sv_undef) 1315aio_group (SV *callback=&PL_sv_undef)
886 PROTOTYPE: ;$
887 PPCODE: 1316 PPCODE:
888{ 1317{
889 dREQ; 1318 dREQ;
890 1319
891 req->type = EIO_GROUP; 1320 req->type = EIO_GROUP;
892 1321
893 eio_submit (req); 1322 req_submit (req);
894 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1323 XPUSHs (req_sv (req, aio_grp_stash));
895} 1324}
896 1325
897void 1326void
898aio_nop (SV *callback=&PL_sv_undef) 1327aio_nop (SV *callback=&PL_sv_undef)
899 ALIAS: 1328 ALIAS:
908 REQ_SEND; 1337 REQ_SEND;
909} 1338}
910 1339
911int 1340int
912aioreq_pri (int pri = 0) 1341aioreq_pri (int pri = 0)
913 PROTOTYPE: ;$
914 CODE: 1342 CODE:
915 RETVAL = next_pri; 1343 RETVAL = next_pri;
916 if (items > 0) 1344 if (items > 0)
917 { 1345 {
918 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; 1346 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
930 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; 1358 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
931 next_pri = nice; 1359 next_pri = nice;
932 1360
933void 1361void
934flush () 1362flush ()
935 PROTOTYPE:
936 CODE: 1363 CODE:
937 while (eio_nreqs ()) 1364 while (eio_nreqs ())
938 { 1365 {
939 poll_wait (); 1366 poll_wait ();
940 poll_cb (); 1367 poll_cb ();
941 } 1368 }
942 1369
943int 1370int
944poll() 1371poll ()
945 PROTOTYPE:
946 CODE: 1372 CODE:
947 poll_wait (); 1373 poll_wait ();
948 RETVAL = poll_cb (); 1374 RETVAL = poll_cb ();
949 OUTPUT: 1375 OUTPUT:
950 RETVAL 1376 RETVAL
951 1377
952int 1378int
953poll_fileno() 1379poll_fileno ()
954 PROTOTYPE:
955 CODE: 1380 CODE:
956 RETVAL = respipe [0]; 1381 RETVAL = s_epipe_fd (&respipe);
957 OUTPUT: 1382 OUTPUT:
958 RETVAL 1383 RETVAL
959 1384
960int 1385int
961poll_cb(...) 1386poll_cb (...)
962 PROTOTYPE: 1387 PROTOTYPE:
963 CODE: 1388 CODE:
964 RETVAL = poll_cb (); 1389 RETVAL = poll_cb ();
965 OUTPUT: 1390 OUTPUT:
966 RETVAL 1391 RETVAL
967 1392
968void 1393void
969poll_wait() 1394poll_wait ()
970 PROTOTYPE:
971 CODE: 1395 CODE:
972 poll_wait (); 1396 poll_wait ();
973 1397
974int 1398int
975nreqs() 1399nreqs ()
976 PROTOTYPE:
977 CODE: 1400 CODE:
978 RETVAL = eio_nreqs (); 1401 RETVAL = eio_nreqs ();
979 OUTPUT: 1402 OUTPUT:
980 RETVAL 1403 RETVAL
981 1404
982int 1405int
983nready() 1406nready ()
984 PROTOTYPE:
985 CODE: 1407 CODE:
986 RETVAL = eio_nready (); 1408 RETVAL = eio_nready ();
987 OUTPUT: 1409 OUTPUT:
988 RETVAL 1410 RETVAL
989 1411
990int 1412int
991npending() 1413npending ()
992 PROTOTYPE:
993 CODE: 1414 CODE:
994 RETVAL = eio_npending (); 1415 RETVAL = eio_npending ();
995 OUTPUT: 1416 OUTPUT:
996 RETVAL 1417 RETVAL
997 1418
998int 1419int
999nthreads() 1420nthreads ()
1000 PROTOTYPE:
1001 CODE: 1421 CODE:
1002 RETVAL = eio_nthreads (); 1422 RETVAL = eio_nthreads ();
1003 OUTPUT: 1423 OUTPUT:
1004 RETVAL 1424 RETVAL
1005 1425
1426int
1427fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1428 CODE:
1429 RETVAL = posix_fadvise (fh, offset, length, advice);
1430 OUTPUT:
1431 RETVAL
1432
1433ssize_t
1434sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1435 CODE:
1436 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1437 OUTPUT:
1438 RETVAL
1439
1440void
1441mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1442 PPCODE:
1443 sv_unmagic (scalar, MMAP_MAGIC);
1444{
1445 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1446 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1447 if (addr == (void *)-1)
1448 XSRETURN_NO;
1449
1450 sv_force_normal (scalar);
1451
1452 /* we store the length in mg_obj, as namlen is I32 :/ */
1453 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1454 ->mg_obj = (SV *)length;
1455
1456 SvUPGRADE (scalar, SVt_PV); /* nop... */
1457
1458 if (!(prot & PROT_WRITE))
1459 SvREADONLY_on (scalar);
1460
1461 if (SvLEN (scalar))
1462 Safefree (SvPVX (scalar));
1463
1464 SvPVX (scalar) = (char *)addr;
1465 SvCUR_set (scalar, length);
1466 SvLEN_set (scalar, 0);
1467 SvPOK_only (scalar);
1468
1469 XSRETURN_YES;
1470}
1471
1472void
1473munmap (SV *scalar)
1474 CODE:
1475 sv_unmagic (scalar, MMAP_MAGIC);
1476
1477int
1478madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1479 ALIAS:
1480 mprotect = 1
1481 CODE:
1482{
1483 STRLEN svlen;
1484 void *addr = SvPVbyte (scalar, svlen);
1485 size_t len = SvUV (length);
1486
1487 if (offset < 0)
1488 offset += svlen;
1489
1490 if (offset < 0 || offset > svlen)
1491 croak ("offset outside of scalar");
1492
1493 if (!SvOK (length) || len + offset > svlen)
1494 len = svlen - offset;
1495
1496 addr = (void *)(((intptr_t)addr) + offset);
1497 eio_page_align (&addr, &len);
1498
1499 switch (ix)
1500 {
1501 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1502 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1503 }
1504}
1505 OUTPUT:
1506 RETVAL
1507
1508int
1509munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1510 CODE:
1511{
1512 STRLEN svlen;
1513 void *addr = SvPVbyte (scalar, svlen);
1514 size_t len = SvUV (length);
1515
1516 if (offset < 0)
1517 offset += svlen;
1518
1519 if (offset < 0 || offset > svlen)
1520 croak ("offset outside of scalar");
1521
1522 if (!SvOK (length) || len + offset > svlen)
1523 len = svlen - offset;
1524
1525 addr = (void *)(((intptr_t)addr) + offset);
1526 eio_page_align (&addr, &len);
1527#if _POSIX_MEMLOCK
1528 RETVAL = munlock (addr, len);
1529#else
1530 RETVAL = ((errno = ENOSYS), -1);
1531#endif
1532}
1533 OUTPUT:
1534 RETVAL
1535
1536int
1537munlockall ()
1538 CODE:
1539#if _POSIX_MEMLOCK
1540 munlockall ();
1541#else
1542 RETVAL = -1;
1543 errno = ENOSYS;
1544#endif
1545 OUTPUT:
1546 RETVAL
1547
1006void _on_next_submit (SV *cb) 1548void _on_next_submit (SV *cb)
1007 CODE: 1549 CODE:
1008 SvREFCNT_dec (on_next_submit); 1550 SvREFCNT_dec (on_next_submit);
1009 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; 1551 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1010 1552
1017 CODE: 1559 CODE:
1018 eio_cancel (req); 1560 eio_cancel (req);
1019 1561
1020void 1562void
1021cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1563cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1022 CODE: 1564 PPCODE:
1565{
1566 if (GIMME_V != G_VOID)
1567 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1568
1569 if (items > 1)
1570 {
1571 SV *cb_cv =get_cb (callback);
1572
1023 SvREFCNT_dec (req->callback); 1573 SvREFCNT_dec (req->callback);
1024 req->callback = newSVsv (callback); 1574 req->callback = SvREFCNT_inc (cb_cv);
1575 }
1576}
1025 1577
1026MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1578MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1027 1579
1028void 1580void
1029add (aio_req grp, ...) 1581add (aio_req grp, ...)
1061 AV *av; 1613 AV *av;
1062 1614
1063 grp->errorno = errno; 1615 grp->errorno = errno;
1064 1616
1065 av = newAV (); 1617 av = newAV ();
1618 av_extend (av, items - 1);
1066 1619
1067 for (i = 1; i < items; ++i ) 1620 for (i = 1; i < items; ++i )
1068 av_push (av, newSVsv (ST (i))); 1621 av_push (av, newSVsv (ST (i)));
1069 1622
1070 SvREFCNT_dec (grp->sv1); 1623 SvREFCNT_dec (grp->sv1);
1084void 1637void
1085feed (aio_req grp, SV *callback=&PL_sv_undef) 1638feed (aio_req grp, SV *callback=&PL_sv_undef)
1086 CODE: 1639 CODE:
1087{ 1640{
1088 SvREFCNT_dec (grp->sv2); 1641 SvREFCNT_dec (grp->sv2);
1089 grp->sv2 = newSVsv (callback); 1642 grp->sv2 = newSVsv (callback);
1643 grp->feed = aio_grp_feed;
1090 1644
1091 if (grp->int2 <= 0) 1645 if (grp->int2 <= 0)
1092 grp->int2 = 2; 1646 grp->int2 = 2;
1093 1647
1094 eio_grp_limit (grp, grp->int2); 1648 eio_grp_limit (grp, grp->int2);

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