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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.70 by root, Tue Oct 24 15:15:56 2006 UTC vs.
Revision 1.106 by root, Mon Sep 24 18:14:00 2007 UTC

1/* solaris */ 1#include "xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux
5# define _GNU_SOURCE
6#endif
7
8#define _REENTRANT 1
9 2
10#include <errno.h> 3#include <errno.h>
11 4
12#include "EXTERN.h" 5#include "EXTERN.h"
13#include "perl.h" 6#include "perl.h"
14#include "XSUB.h" 7#include "XSUB.h"
15 8
16#include "autoconf/config.h"
17
18#include <pthread.h>
19
20#include <stddef.h> 9#include <stddef.h>
10#include <stdlib.h>
21#include <errno.h> 11#include <errno.h>
22#include <sys/time.h>
23#include <sys/select.h>
24#include <sys/types.h> 12#include <sys/types.h>
25#include <sys/stat.h> 13#include <sys/stat.h>
26#include <limits.h> 14#include <limits.h>
27#include <unistd.h>
28#include <fcntl.h> 15#include <fcntl.h>
29#include <signal.h>
30#include <sched.h> 16#include <sched.h>
17
18#ifdef _WIN32
19
20# define SIGIO 0
21 typedef Direntry_t X_DIRENT;
22#undef malloc
23#undef free
24
25// perl overrides all those nice win32 functions
26# undef open
27# undef read
28# undef write
29# undef send
30# undef recv
31# undef stat
32# undef fstat
33# define lstat stat
34# undef truncate
35# undef ftruncate
36# undef open
37# undef close
38# undef unlink
39# undef rmdir
40# undef rename
41# undef lseek
42
43# define chown(a,b,c) (errno = ENOSYS, -1)
44# define fchown(a,b,c) (errno = ENOSYS, -1)
45# define fchmod(a,b) (errno = ENOSYS, -1)
46# define symlink(a,b) (errno = ENOSYS, -1)
47# define readlink(a,b,c) (errno = ENOSYS, -1)
48# define mknod(a,b,c) (errno = ENOSYS, -1)
49# define truncate(a,b) (errno = ENOSYS, -1)
50# define ftruncate(fd,o) chsize ((fd), (o))
51# define fsync(fd) _commit (fd)
52# define opendir(fd) (errno = ENOSYS, 0)
53# define readdir(fd) (errno = ENOSYS, -1)
54# define closedir(fd) (errno = ENOSYS, -1)
55# define mkdir(a,b) mkdir (a)
56
57#else
58
59# include "autoconf/config.h"
60# include <sys/time.h>
61# include <sys/select.h>
62# include <unistd.h>
63# include <utime.h>
64# include <signal.h>
65 typedef struct dirent X_DIRENT;
66
67#endif
31 68
32#if HAVE_SENDFILE 69#if HAVE_SENDFILE
33# if __linux 70# if __linux
34# include <sys/sendfile.h> 71# include <sys/sendfile.h>
35# elif __freebsd 72# elif __freebsd
42# else 79# else
43# error sendfile support requested but not available 80# error sendfile support requested but not available
44# endif 81# endif
45#endif 82#endif
46 83
84/* number of seconds after which idle threads exit */
85#define IDLE_TIMEOUT 10
86
47/* used for struct dirent, AIX doesn't provide it */ 87/* used for struct dirent, AIX doesn't provide it */
48#ifndef NAME_MAX 88#ifndef NAME_MAX
49# define NAME_MAX 4096 89# define NAME_MAX 4096
50#endif 90#endif
51 91
52#if __ia64
53# define STACKSIZE 65536
54#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
55# define STACKSIZE PTHREAD_STACK_MIN
56#else
57# define STACKSIZE 16384
58#endif
59
60/* buffer size for various temporary buffers */ 92/* buffer size for various temporary buffers */
61#define AIO_BUFSIZE 65536 93#define AIO_BUFSIZE 65536
62 94
95/* use NV for 32 bit perls as it allows larger offsets */
96#if IVSIZE >= 8
97# define SvVAL64 SvIV
98#else
99# define SvVAL64 SvNV
100#endif
101
63#define dBUF \ 102#define dBUF \
103 char *aio_buf; \
104 X_LOCK (wrklock); \
64 char *aio_buf = malloc (AIO_BUFSIZE); \ 105 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
106 X_UNLOCK (wrklock); \
65 if (!aio_buf) \ 107 if (!aio_buf) \
66 return -1; 108 return -1;
67 109
68#define fBUF free (aio_buf) 110typedef SV SV8; /* byte-sv, used for argument-checking */
69 111
70enum { 112enum {
71 REQ_QUIT, 113 REQ_QUIT,
72 REQ_OPEN, REQ_CLOSE, 114 REQ_OPEN, REQ_CLOSE,
73 REQ_READ, REQ_WRITE, REQ_READAHEAD, 115 REQ_READ, REQ_WRITE,
74 REQ_SENDFILE, 116 REQ_READAHEAD, REQ_SENDFILE,
75 REQ_STAT, REQ_LSTAT, REQ_FSTAT, 117 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
118 REQ_TRUNCATE, REQ_FTRUNCATE,
119 REQ_UTIME, REQ_FUTIME,
120 REQ_CHMOD, REQ_FCHMOD,
121 REQ_CHOWN, REQ_FCHOWN,
76 REQ_FSYNC, REQ_FDATASYNC, 122 REQ_FSYNC, REQ_FDATASYNC,
77 REQ_UNLINK, REQ_RMDIR, REQ_RENAME, 123 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
78 REQ_READDIR, 124 REQ_MKNOD, REQ_READDIR,
79 REQ_LINK, REQ_SYMLINK, 125 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
80 REQ_GROUP, REQ_NOP, 126 REQ_GROUP, REQ_NOP,
81 REQ_BUSY, 127 REQ_BUSY,
82}; 128};
83 129
84#define AIO_REQ_KLASS "IO::AIO::REQ" 130#define AIO_REQ_KLASS "IO::AIO::REQ"
86 132
87typedef struct aio_cb 133typedef struct aio_cb
88{ 134{
89 struct aio_cb *volatile next; 135 struct aio_cb *volatile next;
90 136
91 SV *data, *callback; 137 SV *callback;
92 SV *fh, *fh2; 138 SV *sv1, *sv2;
93 void *dataptr, *data2ptr; 139 void *ptr1, *ptr2;
94 Stat_t *statdata;
95 off_t offset; 140 off_t offs;
96 size_t length; 141 size_t size;
97 ssize_t result; 142 ssize_t result;
143 double nv1, nv2;
98 144
99 STRLEN dataoffset; 145 STRLEN stroffset;
100 int type; 146 int type;
101 int fd, fd2; 147 int int1, int2, int3;
102 int errorno; 148 int errorno;
103 mode_t mode; /* open */ 149 mode_t mode; /* open */
104 150
105 unsigned char flags; 151 unsigned char flags;
106 unsigned char pri; 152 unsigned char pri;
108 SV *self; /* the perl counterpart of this request, if any */ 154 SV *self; /* the perl counterpart of this request, if any */
109 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 155 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
110} aio_cb; 156} aio_cb;
111 157
112enum { 158enum {
113 FLAG_CANCELLED = 0x01, 159 FLAG_CANCELLED = 0x01, /* request was cancelled */
160 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
161 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
114}; 162};
115 163
116typedef aio_cb *aio_req; 164typedef aio_cb *aio_req;
117typedef aio_cb *aio_req_ornot; 165typedef aio_cb *aio_req_ornot;
118 166
123 DEFAULT_PRI = 0, 171 DEFAULT_PRI = 0,
124 PRI_BIAS = -PRI_MIN, 172 PRI_BIAS = -PRI_MIN,
125 NUM_PRI = PRI_MAX + PRI_BIAS + 1, 173 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
126}; 174};
127 175
176#define AIO_TICKS ((1000000 + 1023) >> 10)
177
178static unsigned int max_poll_time = 0;
179static unsigned int max_poll_reqs = 0;
180
181/* calculcate time difference in ~1/AIO_TICKS of a second */
182static int tvdiff (struct timeval *tv1, struct timeval *tv2)
183{
184 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
185 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
186}
187
188static thread_t main_tid;
189static int main_sig;
190static int block_sig_level;
191
192void block_sig ()
193{
194 sigset_t ss;
195
196 if (block_sig_level++)
197 return;
198
199 if (!main_sig)
200 return;
201
202 sigemptyset (&ss);
203 sigaddset (&ss, main_sig);
204 pthread_sigmask (SIG_BLOCK, &ss, 0);
205}
206
207void unblock_sig ()
208{
209 sigset_t ss;
210
211 if (--block_sig_level)
212 return;
213
214 if (!main_sig)
215 return;
216
217 sigemptyset (&ss);
218 sigaddset (&ss, main_sig);
219 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
220}
221
128static int next_pri = DEFAULT_PRI + PRI_BIAS; 222static int next_pri = DEFAULT_PRI + PRI_BIAS;
129 223
130static int started, wanted; 224static unsigned int started, idle, wanted;
131static volatile int nreqs;
132static int max_outstanding = 1<<30;
133static int respipe [2];
134 225
135#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) 226/* worker threads management */
136# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP 227static mutex_t wrklock = X_MUTEX_INIT;
228
229typedef struct worker {
230 /* locked by wrklock */
231 struct worker *prev, *next;
232
233 thread_t tid;
234
235 /* locked by reslock, reqlock or wrklock */
236 aio_req req; /* currently processed request */
237 void *dbuf;
238 DIR *dirp;
239} worker;
240
241static worker wrk_first = { &wrk_first, &wrk_first, 0 };
242
243static void worker_clear (worker *wrk)
244{
245 if (wrk->dirp)
246 {
247 closedir (wrk->dirp);
248 wrk->dirp = 0;
249 }
250
251 if (wrk->dbuf)
252 {
253 free (wrk->dbuf);
254 wrk->dbuf = 0;
255 }
256}
257
258static void worker_free (worker *wrk)
259{
260 wrk->next->prev = wrk->prev;
261 wrk->prev->next = wrk->next;
262
263 free (wrk);
264}
265
266static volatile unsigned int nreqs, nready, npending;
267static volatile unsigned int max_idle = 4;
268static volatile unsigned int max_outstanding = 0xffffffff;
269static int respipe_osf [2], respipe [2] = { -1, -1 };
270
271static mutex_t reslock = X_MUTEX_INIT;
272static mutex_t reqlock = X_MUTEX_INIT;
273static cond_t reqwait = X_COND_INIT;
274
275#if WORDACCESS_UNSAFE
276
277static unsigned int get_nready ()
278{
279 unsigned int retval;
280
281 X_LOCK (reqlock);
282 retval = nready;
283 X_UNLOCK (reqlock);
284
285 return retval;
286}
287
288static unsigned int get_npending ()
289{
290 unsigned int retval;
291
292 X_LOCK (reslock);
293 retval = npending;
294 X_UNLOCK (reslock);
295
296 return retval;
297}
298
299static unsigned int get_nthreads ()
300{
301 unsigned int retval;
302
303 X_LOCK (wrklock);
304 retval = started;
305 X_UNLOCK (wrklock);
306
307 return retval;
308}
309
137#else 310#else
138# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER 311
312# define get_nready() nready
313# define get_npending() npending
314# define get_nthreads() started
315
139#endif 316#endif
140
141static pthread_mutex_t reslock = AIO_MUTEX_INIT;
142static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
143static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
144 317
145/* 318/*
146 * a somewhat faster data structure might be nice, but 319 * a somewhat faster data structure might be nice, but
147 * with 8 priorities this actually needs <20 insns 320 * with 8 priorities this actually needs <20 insns
148 * per shift, the most expensive operation. 321 * per shift, the most expensive operation.
194 } 367 }
195 368
196 abort (); 369 abort ();
197} 370}
198 371
372static int poll_cb ();
199static void req_invoke (aio_req req); 373static int req_invoke (aio_req req);
374static void req_destroy (aio_req req);
200static void req_free (aio_req req); 375static void req_cancel (aio_req req);
201 376
202/* must be called at most once */ 377/* must be called at most once */
203static SV *req_sv (aio_req req, const char *klass) 378static SV *req_sv (aio_req req, const char *klass)
204{ 379{
205 if (!req->self) 380 if (!req->self)
223 return mg ? (aio_req)mg->mg_ptr : 0; 398 return mg ? (aio_req)mg->mg_ptr : 0;
224} 399}
225 400
226static void aio_grp_feed (aio_req grp) 401static void aio_grp_feed (aio_req grp)
227{ 402{
403 block_sig ();
404
228 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 405 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
229 { 406 {
230 int old_len = grp->length; 407 int old_len = grp->size;
231 408
232 if (grp->fh2 && SvOK (grp->fh2)) 409 if (grp->sv2 && SvOK (grp->sv2))
233 { 410 {
234 dSP; 411 dSP;
235 412
236 ENTER; 413 ENTER;
237 SAVETMPS; 414 SAVETMPS;
238 PUSHMARK (SP); 415 PUSHMARK (SP);
239 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 416 XPUSHs (req_sv (grp, AIO_GRP_KLASS));
240 PUTBACK; 417 PUTBACK;
241 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
242 SPAGAIN; 419 SPAGAIN;
243 FREETMPS; 420 FREETMPS;
244 LEAVE; 421 LEAVE;
245 } 422 }
246 423
247 /* stop if no progress has been made */ 424 /* stop if no progress has been made */
248 if (old_len == grp->length) 425 if (old_len == grp->size)
249 { 426 {
250 SvREFCNT_dec (grp->fh2); 427 SvREFCNT_dec (grp->sv2);
251 grp->fh2 = 0; 428 grp->sv2 = 0;
252 break; 429 break;
253 } 430 }
254 } 431 }
432
433 unblock_sig ();
255} 434}
256 435
257static void aio_grp_dec (aio_req grp) 436static void aio_grp_dec (aio_req grp)
258{ 437{
259 --grp->length; 438 --grp->size;
260 439
261 /* call feeder, if applicable */ 440 /* call feeder, if applicable */
262 aio_grp_feed (grp); 441 aio_grp_feed (grp);
263 442
264 /* finish, if done */ 443 /* finish, if done */
265 if (!grp->length && grp->fd) 444 if (!grp->size && grp->int1)
266 { 445 {
446 block_sig ();
447
267 req_invoke (grp); 448 if (!req_invoke (grp))
449 {
450 req_destroy (grp);
451 unblock_sig ();
452 croak (0);
453 }
454
268 req_free (grp); 455 req_destroy (grp);
456 unblock_sig ();
269 } 457 }
270} 458}
271 459
272static void poll_wait ()
273{
274 fd_set rfd;
275
276 while (nreqs)
277 {
278 int size;
279#if !(__i386 || __x86_64) /* safe without sempahore on this archs */
280 pthread_mutex_lock (&reslock);
281#endif
282 size = res_queue.size;
283#if !(__i386 || __x86_64) /* safe without sempahore on this archs */
284 pthread_mutex_unlock (&reslock);
285#endif
286
287 if (size)
288 return;
289
290 FD_ZERO(&rfd);
291 FD_SET(respipe [0], &rfd);
292
293 select (respipe [0] + 1, &rfd, 0, 0, 0);
294 }
295}
296
297static void req_invoke (aio_req req) 460static int req_invoke (aio_req req)
298{ 461{
299 dSP; 462 dSP;
463
464 if (req->flags & FLAG_SV2_RO_OFF)
465 SvREADONLY_off (req->sv2);
300 466
301 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 467 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
302 { 468 {
303 errno = req->errorno;
304
305 ENTER; 469 ENTER;
306 SAVETMPS; 470 SAVETMPS;
307 PUSHMARK (SP); 471 PUSHMARK (SP);
308 EXTEND (SP, 1); 472 EXTEND (SP, 1);
309 473
313 { 477 {
314 SV *rv = &PL_sv_undef; 478 SV *rv = &PL_sv_undef;
315 479
316 if (req->result >= 0) 480 if (req->result >= 0)
317 { 481 {
482 int i;
318 char *buf = req->data2ptr; 483 char *buf = req->ptr2;
319 AV *av = newAV (); 484 AV *av = newAV ();
320 485
321 while (req->result) 486 av_extend (av, req->result - 1);
487
488 for (i = 0; i < req->result; ++i)
322 { 489 {
323 SV *sv = newSVpv (buf, 0); 490 SV *sv = newSVpv (buf, 0);
324 491
325 av_push (av, sv); 492 av_store (av, i, sv);
326 buf += SvCUR (sv) + 1; 493 buf += SvCUR (sv) + 1;
327 req->result--;
328 } 494 }
329 495
330 rv = sv_2mortal (newRV_noinc ((SV *)av)); 496 rv = sv_2mortal (newRV_noinc ((SV *)av));
331 } 497 }
332 498
342 PUSHs (sv_2mortal (newSViv (req->result))); 508 PUSHs (sv_2mortal (newSViv (req->result)));
343 PUTBACK; 509 PUTBACK;
344 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 510 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
345 SPAGAIN; 511 SPAGAIN;
346 512
347 fh = SvREFCNT_inc (POPs); 513 fh = POPs;
348
349 PUSHMARK (SP); 514 PUSHMARK (SP);
350 XPUSHs (sv_2mortal (fh)); 515 XPUSHs (fh);
351 } 516 }
352 break; 517 break;
353 518
354 case REQ_GROUP: 519 case REQ_GROUP:
355 req->fd = 2; /* mark group as finished */ 520 req->int1 = 2; /* mark group as finished */
356 521
357 if (req->data) 522 if (req->sv1)
358 { 523 {
359 int i; 524 int i;
360 AV *av = (AV *)req->data; 525 AV *av = (AV *)req->sv1;
361 526
362 EXTEND (SP, AvFILL (av) + 1); 527 EXTEND (SP, AvFILL (av) + 1);
363 for (i = 0; i <= AvFILL (av); ++i) 528 for (i = 0; i <= AvFILL (av); ++i)
364 PUSHs (*av_fetch (av, i, 0)); 529 PUSHs (*av_fetch (av, i, 0));
365 } 530 }
367 532
368 case REQ_NOP: 533 case REQ_NOP:
369 case REQ_BUSY: 534 case REQ_BUSY:
370 break; 535 break;
371 536
537 case REQ_READLINK:
538 if (req->result > 0)
539 {
540 SvCUR_set (req->sv2, req->result);
541 *SvEND (req->sv2) = 0;
542 PUSHs (req->sv2);
543 }
544 break;
545
546 case REQ_STAT:
547 case REQ_LSTAT:
548 case REQ_FSTAT:
549 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
550 PL_laststatval = req->result;
551 PL_statcache = *(Stat_t *)(req->ptr2);
552 PUSHs (sv_2mortal (newSViv (req->result)));
553 break;
554
555 case REQ_READ:
556 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
557 *SvEND (req->sv2) = 0;
558 PUSHs (sv_2mortal (newSViv (req->result)));
559 break;
560
372 default: 561 default:
373 PUSHs (sv_2mortal (newSViv (req->result))); 562 PUSHs (sv_2mortal (newSViv (req->result)));
374 break; 563 break;
375 } 564 }
376 565
566 errno = req->errorno;
377 567
378 PUTBACK; 568 PUTBACK;
379 call_sv (req->callback, G_VOID | G_EVAL); 569 call_sv (req->callback, G_VOID | G_EVAL);
380 SPAGAIN; 570 SPAGAIN;
381 571
395 grp->grp_first = req->grp_next; 585 grp->grp_first = req->grp_next;
396 586
397 aio_grp_dec (grp); 587 aio_grp_dec (grp);
398 } 588 }
399 589
400 if (SvTRUE (ERRSV)) 590 return !SvTRUE (ERRSV);
401 {
402 req_free (req);
403 croak (0);
404 }
405} 591}
406 592
407static void req_free (aio_req req) 593static void req_destroy (aio_req req)
408{ 594{
409 if (req->self) 595 if (req->self)
410 { 596 {
411 sv_unmagic (req->self, PERL_MAGIC_ext); 597 sv_unmagic (req->self, PERL_MAGIC_ext);
412 SvREFCNT_dec (req->self); 598 SvREFCNT_dec (req->self);
413 } 599 }
414 600
415 SvREFCNT_dec (req->data);
416 SvREFCNT_dec (req->fh); 601 SvREFCNT_dec (req->sv1);
417 SvREFCNT_dec (req->fh2); 602 SvREFCNT_dec (req->sv2);
418 SvREFCNT_dec (req->callback); 603 SvREFCNT_dec (req->callback);
419 Safefree (req->statdata);
420 604
421 if (req->type == REQ_READDIR && req->result >= 0) 605 if (req->flags & FLAG_PTR2_FREE)
422 free (req->data2ptr); 606 free (req->ptr2);
423 607
424 Safefree (req); 608 Safefree (req);
425} 609}
426 610
611static void req_cancel_subs (aio_req grp)
612{
613 aio_req sub;
614
615 if (grp->type != REQ_GROUP)
616 return;
617
618 SvREFCNT_dec (grp->sv2);
619 grp->sv2 = 0;
620
621 for (sub = grp->grp_first; sub; sub = sub->grp_next)
622 req_cancel (sub);
623}
624
427static void req_cancel (aio_req req) 625static void req_cancel (aio_req req)
428{ 626{
429 req->flags |= FLAG_CANCELLED; 627 req->flags |= FLAG_CANCELLED;
430 628
431 if (req->type == REQ_GROUP) 629 req_cancel_subs (req);
630}
631
632#ifdef USE_SOCKETS_AS_HANDLES
633# define TO_SOCKET(x) (win32_get_osfhandle (x))
634#else
635# define TO_SOCKET(x) (x)
636#endif
637
638static void
639create_respipe ()
640{
641 int old_readfd = respipe [0];
642
643 if (respipe [1] >= 0)
644 respipe_close (TO_SOCKET (respipe [1]));
645
646#ifdef _WIN32
647 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
648#else
649 if (pipe (respipe))
650#endif
651 croak ("unable to initialize result pipe");
652
653 if (old_readfd >= 0)
432 { 654 {
433 aio_req sub; 655 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
656 croak ("unable to initialize result pipe(2)");
434 657
435 for (sub = req->grp_first; sub; sub = sub->grp_next) 658 respipe_close (respipe [0]);
436 req_cancel (sub); 659 respipe [0] = old_readfd;
660 }
661
662#ifdef _WIN32
663 int arg = 1;
664 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
665 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
666#else
667 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
668 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
669#endif
670 croak ("unable to initialize result pipe(3)");
671
672 respipe_osf [0] = TO_SOCKET (respipe [0]);
673 respipe_osf [1] = TO_SOCKET (respipe [1]);
674}
675
676X_THREAD_PROC (aio_proc);
677
678static void start_thread (void)
679{
680 worker *wrk = calloc (1, sizeof (worker));
681
682 if (!wrk)
683 croak ("unable to allocate worker thread data");
684
685 X_LOCK (wrklock);
686
687 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
688 {
689 wrk->prev = &wrk_first;
690 wrk->next = wrk_first.next;
691 wrk_first.next->prev = wrk;
692 wrk_first.next = wrk;
693 ++started;
694 }
695 else
696 free (wrk);
697
698 X_UNLOCK (wrklock);
699}
700
701static void maybe_start_thread ()
702{
703 if (get_nthreads () >= wanted)
704 return;
705
706 /* todo: maybe use idle here, but might be less exact */
707 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
708 return;
709
710 start_thread ();
711}
712
713static void req_send (aio_req req)
714{
715 block_sig ();
716
717 ++nreqs;
718
719 X_LOCK (reqlock);
720 ++nready;
721 reqq_push (&req_queue, req);
722 X_COND_SIGNAL (reqwait);
723 X_UNLOCK (reqlock);
724
725 unblock_sig ();
726
727 maybe_start_thread ();
728}
729
730static void end_thread (void)
731{
732 aio_req req;
733
734 Newz (0, req, 1, aio_cb);
735
736 req->type = REQ_QUIT;
737 req->pri = PRI_MAX + PRI_BIAS;
738
739 X_LOCK (reqlock);
740 reqq_push (&req_queue, req);
741 X_COND_SIGNAL (reqwait);
742 X_UNLOCK (reqlock);
743
744 X_LOCK (wrklock);
745 --started;
746 X_UNLOCK (wrklock);
747}
748
749static void set_max_idle (int nthreads)
750{
751 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
752 max_idle = nthreads <= 0 ? 1 : nthreads;
753 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
754}
755
756static void min_parallel (int nthreads)
757{
758 if (wanted < nthreads)
759 wanted = nthreads;
760}
761
762static void max_parallel (int nthreads)
763{
764 if (wanted > nthreads)
765 wanted = nthreads;
766
767 while (started > wanted)
768 end_thread ();
769}
770
771static void poll_wait ()
772{
773 fd_set rfd;
774
775 while (nreqs)
776 {
777 int size;
778 if (WORDACCESS_UNSAFE) X_LOCK (reslock);
779 size = res_queue.size;
780 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
781
782 if (size)
783 return;
784
785 maybe_start_thread ();
786
787 FD_ZERO (&rfd);
788 FD_SET (respipe [0], &rfd);
789
790 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
437 } 791 }
438} 792}
439 793
440static int poll_cb () 794static int poll_cb ()
441{ 795{
442 dSP; 796 dSP;
443 int count = 0; 797 int count = 0;
798 int maxreqs = max_poll_reqs;
444 int do_croak = 0; 799 int do_croak = 0;
800 struct timeval tv_start, tv_now;
445 aio_req req; 801 aio_req req;
802
803 if (max_poll_time)
804 gettimeofday (&tv_start, 0);
805
806 block_sig ();
446 807
447 for (;;) 808 for (;;)
448 { 809 {
449 pthread_mutex_lock (&reslock); 810 for (;;)
450 req = reqq_shift (&res_queue);
451
452 if (req)
453 { 811 {
812 maybe_start_thread ();
813
814 X_LOCK (reslock);
815 req = reqq_shift (&res_queue);
816
454 if (!res_queue.size) 817 if (req)
455 { 818 {
819 --npending;
820
821 if (!res_queue.size)
822 {
456 /* read any signals sent by the worker threads */ 823 /* read any signals sent by the worker threads */
457 char buf [32]; 824 char buf [4];
458 while (read (respipe [0], buf, 32) == 32) 825 while (respipe_read (respipe [0], buf, 4) == 4)
826 ;
459 ; 827 }
828 }
829
830 X_UNLOCK (reslock);
831
832 if (!req)
833 break;
834
835 --nreqs;
836
837 if (req->type == REQ_GROUP && req->size)
838 {
839 req->int1 = 1; /* mark request as delayed */
840 continue;
841 }
842 else
843 {
844 if (!req_invoke (req))
845 {
846 req_destroy (req);
847 unblock_sig ();
848 croak (0);
849 }
850
851 count++;
852 }
853
854 req_destroy (req);
855
856 if (maxreqs && !--maxreqs)
857 break;
858
859 if (max_poll_time)
860 {
861 gettimeofday (&tv_now, 0);
862
863 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
864 break;
460 } 865 }
461 } 866 }
462 867
463 pthread_mutex_unlock (&reslock); 868 if (nreqs <= max_outstanding)
464
465 if (!req)
466 break; 869 break;
467 870
468 --nreqs; 871 poll_wait ();
469 872
470 if (req->type == REQ_QUIT) 873 ++maxreqs;
471 started--;
472 else if (req->type == REQ_GROUP && req->length)
473 {
474 req->fd = 1; /* mark request as delayed */
475 continue;
476 }
477 else
478 {
479 if (req->type == REQ_READ)
480 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
481
482 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
483 SvREADONLY_off (req->data);
484
485 if (req->statdata)
486 {
487 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
488 PL_laststatval = req->result;
489 PL_statcache = *(req->statdata);
490 }
491
492 req_invoke (req);
493
494 count++;
495 }
496
497 req_free (req);
498 } 874 }
499 875
876 unblock_sig ();
500 return count; 877 return count;
501}
502
503static void *aio_proc(void *arg);
504
505static void start_thread (void)
506{
507 sigset_t fullsigset, oldsigset;
508 pthread_t tid;
509 pthread_attr_t attr;
510
511 pthread_attr_init (&attr);
512 pthread_attr_setstacksize (&attr, STACKSIZE);
513 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
514
515 sigfillset (&fullsigset);
516 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
517
518 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
519 started++;
520
521 sigprocmask (SIG_SETMASK, &oldsigset, 0);
522}
523
524static void req_send (aio_req req)
525{
526 while (started < wanted && nreqs >= started)
527 start_thread ();
528
529 ++nreqs;
530
531 pthread_mutex_lock (&reqlock);
532 reqq_push (&req_queue, req);
533 pthread_cond_signal (&reqwait);
534 pthread_mutex_unlock (&reqlock);
535
536 if (nreqs > max_outstanding)
537 for (;;)
538 {
539 poll_cb ();
540
541 if (nreqs <= max_outstanding)
542 break;
543
544 poll_wait ();
545 }
546}
547
548static void end_thread (void)
549{
550 aio_req req;
551
552 Newz (0, req, 1, aio_cb);
553
554 req->type = REQ_QUIT;
555 req->pri = PRI_MAX + PRI_BIAS;
556
557 req_send (req);
558}
559
560static void min_parallel (int nthreads)
561{
562 if (wanted < nthreads)
563 wanted = nthreads;
564}
565
566static void max_parallel (int nthreads)
567{
568 int cur = started;
569
570 if (wanted > nthreads)
571 wanted = nthreads;
572
573 while (cur > wanted)
574 {
575 end_thread ();
576 cur--;
577 }
578
579 while (started > wanted)
580 {
581 poll_wait ();
582 poll_cb ();
583 }
584}
585
586static void create_pipe ()
587{
588 if (pipe (respipe))
589 croak ("unable to initialize result pipe");
590
591 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
592 croak ("cannot set result pipe to nonblocking mode");
593
594 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
595 croak ("cannot set result pipe to nonblocking mode");
596} 878}
597 879
598/*****************************************************************************/ 880/*****************************************************************************/
599/* work around various missing functions */ 881/* work around various missing functions */
600 882
605/* 887/*
606 * make our pread/pwrite safe against themselves, but not against 888 * make our pread/pwrite safe against themselves, but not against
607 * normal read/write by using a mutex. slows down execution a lot, 889 * normal read/write by using a mutex. slows down execution a lot,
608 * but that's your problem, not mine. 890 * but that's your problem, not mine.
609 */ 891 */
610static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER; 892static mutex_t preadwritelock = X_MUTEX_INIT;
611 893
612static ssize_t pread (int fd, void *buf, size_t count, off_t offset) 894static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
613{ 895{
614 ssize_t res; 896 ssize_t res;
615 off_t ooffset; 897 off_t ooffset;
616 898
617 pthread_mutex_lock (&preadwritelock); 899 X_LOCK (preadwritelock);
618 ooffset = lseek (fd, 0, SEEK_CUR); 900 ooffset = lseek (fd, 0, SEEK_CUR);
619 lseek (fd, offset, SEEK_SET); 901 lseek (fd, offset, SEEK_SET);
620 res = read (fd, buf, count); 902 res = read (fd, buf, count);
621 lseek (fd, ooffset, SEEK_SET); 903 lseek (fd, ooffset, SEEK_SET);
622 pthread_mutex_unlock (&preadwritelock); 904 X_UNLOCK (preadwritelock);
623 905
624 return res; 906 return res;
625} 907}
626 908
627static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 909static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
628{ 910{
629 ssize_t res; 911 ssize_t res;
630 off_t ooffset; 912 off_t ooffset;
631 913
632 pthread_mutex_lock (&preadwritelock); 914 X_LOCK (preadwritelock);
633 ooffset = lseek (fd, 0, SEEK_CUR); 915 ooffset = lseek (fd, 0, SEEK_CUR);
634 lseek (fd, offset, SEEK_SET); 916 lseek (fd, offset, SEEK_SET);
635 res = write (fd, buf, count); 917 res = write (fd, buf, count);
636 lseek (fd, offset, SEEK_SET); 918 lseek (fd, offset, SEEK_SET);
637 pthread_mutex_unlock (&preadwritelock); 919 X_UNLOCK (preadwritelock);
638 920
639 return res; 921 return res;
640} 922}
923#endif
924
925#ifndef HAVE_FUTIMES
926
927# define utimes(path,times) aio_utimes (path, times)
928# define futimes(fd,times) aio_futimes (fd, times)
929
930int aio_utimes (const char *filename, const struct timeval times[2])
931{
932 if (times)
933 {
934 struct utimbuf buf;
935
936 buf.actime = times[0].tv_sec;
937 buf.modtime = times[1].tv_sec;
938
939 return utime (filename, &buf);
940 }
941 else
942 return utime (filename, 0);
943}
944
945int aio_futimes (int fd, const struct timeval tv[2])
946{
947 errno = ENOSYS;
948 return -1;
949}
950
641#endif 951#endif
642 952
643#if !HAVE_FDATASYNC 953#if !HAVE_FDATASYNC
644# define fdatasync fsync 954# define fdatasync fsync
645#endif 955#endif
646 956
647#if !HAVE_READAHEAD 957#if !HAVE_READAHEAD
648# define readahead aio_readahead 958# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
649 959
650static ssize_t readahead (int fd, off_t offset, size_t count) 960static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
651{ 961{
962 size_t todo = count;
652 dBUF; 963 dBUF;
653 964
654 while (count > 0) 965 while (todo > 0)
655 { 966 {
656 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE; 967 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
657 968
658 pread (fd, aio_buf, len, offset); 969 pread (fd, aio_buf, len, offset);
659 offset += len; 970 offset += len;
660 count -= len; 971 todo -= len;
661 } 972 }
662 973
663 fBUF;
664
665 errno = 0; 974 errno = 0;
975 return count;
666} 976}
977
667#endif 978#endif
668 979
669#if !HAVE_READDIR_R 980#if !HAVE_READDIR_R
670# define readdir_r aio_readdir_r 981# define readdir_r aio_readdir_r
671 982
672static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; 983static mutex_t readdirlock = X_MUTEX_INIT;
673 984
674static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) 985static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
675{ 986{
676 struct dirent *e; 987 X_DIRENT *e;
677 int errorno; 988 int errorno;
678 989
679 pthread_mutex_lock (&readdirlock); 990 X_LOCK (readdirlock);
680 991
681 e = readdir (dirp); 992 e = readdir (dirp);
682 errorno = errno; 993 errorno = errno;
683 994
684 if (e) 995 if (e)
687 strcpy (ent->d_name, e->d_name); 998 strcpy (ent->d_name, e->d_name);
688 } 999 }
689 else 1000 else
690 *res = 0; 1001 *res = 0;
691 1002
692 pthread_mutex_unlock (&readdirlock); 1003 X_UNLOCK (readdirlock);
693 1004
694 errno = errorno; 1005 errno = errorno;
695 return e ? 0 : -1; 1006 return e ? 0 : -1;
696} 1007}
697#endif 1008#endif
698 1009
699/* sendfile always needs emulation */ 1010/* sendfile always needs emulation */
700static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) 1011static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
701{ 1012{
702 ssize_t res; 1013 ssize_t res;
703 1014
704 if (!count) 1015 if (!count)
705 return 0; 1016 return 0;
716 { 1027 {
717 off_t sbytes; 1028 off_t sbytes;
718 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); 1029 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
719 1030
720 if (res < 0 && sbytes) 1031 if (res < 0 && sbytes)
721 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ 1032 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
722 res = sbytes; 1033 res = sbytes;
723 } 1034 }
724 1035
725# elif __hpux 1036# elif __hpux
726 res = sendfile (ofd, ifd, offset, count, 0, 0); 1037 res = sendfile (ofd, ifd, offset, count, 0, 0);
782 1093
783 offset += cnt; 1094 offset += cnt;
784 res += cnt; 1095 res += cnt;
785 count -= cnt; 1096 count -= cnt;
786 } 1097 }
787
788 fBUF;
789 } 1098 }
790 1099
791 return res; 1100 return res;
792} 1101}
793 1102
794/* read a full directory */ 1103/* read a full directory */
795static int scandir_ (const char *path, void **namesp) 1104static void scandir_ (aio_req req, worker *self)
796{ 1105{
797 DIR *dirp; 1106 DIR *dirp;
798 union 1107 union
799 { 1108 {
800 struct dirent d; 1109 X_DIRENT d;
801 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1]; 1110 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
802 } *u; 1111 } *u;
803 struct dirent *entp; 1112 X_DIRENT *entp;
804 char *name, *names; 1113 char *name, *names;
805 int memlen = 4096; 1114 int memlen = 4096;
806 int memofs = 0; 1115 int memofs = 0;
807 int res = 0; 1116 int res = 0;
808 int errorno;
809 1117
810 dirp = opendir (path); 1118 X_LOCK (wrklock);
811 if (!dirp) 1119 self->dirp = dirp = opendir (req->ptr1);
812 return -1;
813
814 u = malloc (sizeof (*u)); 1120 self->dbuf = u = malloc (sizeof (*u));
1121 req->flags |= FLAG_PTR2_FREE;
815 names = malloc (memlen); 1122 req->ptr2 = names = malloc (memlen);
1123 X_UNLOCK (wrklock);
816 1124
817 if (u && names) 1125 if (dirp && u && names)
818 for (;;) 1126 for (;;)
819 { 1127 {
820 errno = 0; 1128 errno = 0;
821 readdir_r (dirp, &u->d, &entp); 1129 readdir_r (dirp, &u->d, &entp);
822 1130
832 res++; 1140 res++;
833 1141
834 while (memofs + len > memlen) 1142 while (memofs + len > memlen)
835 { 1143 {
836 memlen *= 2; 1144 memlen *= 2;
1145 X_LOCK (wrklock);
837 names = realloc (names, memlen); 1146 req->ptr2 = names = realloc (names, memlen);
1147 X_UNLOCK (wrklock);
1148
838 if (!names) 1149 if (!names)
839 break; 1150 break;
840 } 1151 }
841 1152
842 memcpy (names + memofs, name, len); 1153 memcpy (names + memofs, name, len);
843 memofs += len; 1154 memofs += len;
844 } 1155 }
845 } 1156 }
846 1157
847 errorno = errno;
848 free (u);
849 closedir (dirp);
850
851 if (errorno) 1158 if (errno)
1159 res = -1;
1160
1161 req->result = res;
1162}
1163
1164/*****************************************************************************/
1165
1166X_THREAD_PROC (aio_proc)
1167{
1168 {//D
1169 aio_req req;
1170 struct timespec ts;
1171 worker *self = (worker *)thr_arg;
1172
1173 /* try to distribute timeouts somewhat randomly */
1174 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1175
1176 for (;;)
852 { 1177 {
853 free (names); 1178 ts.tv_sec = time (0) + IDLE_TIMEOUT;
854 errno = errorno;
855 res = -1;
856 }
857 1179
858 *namesp = (void *)names; 1180 X_LOCK (reqlock);
859 return res;
860}
861
862/*****************************************************************************/
863
864static void *aio_proc (void *thr_arg)
865{
866 aio_req req;
867 int type;
868
869 do
870 {
871 pthread_mutex_lock (&reqlock);
872 1181
873 for (;;) 1182 for (;;)
874 { 1183 {
875 req = reqq_shift (&req_queue); 1184 self->req = req = reqq_shift (&req_queue);
876 1185
877 if (req) 1186 if (req)
878 break; 1187 break;
879 1188
880 pthread_cond_wait (&reqwait, &reqlock); 1189 ++idle;
1190
1191 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1192 == ETIMEDOUT)
1193 {
1194 if (idle > max_idle)
1195 {
1196 --idle;
1197 X_UNLOCK (reqlock);
1198 X_LOCK (wrklock);
1199 --started;
1200 X_UNLOCK (wrklock);
1201 goto quit;
1202 }
1203
1204 /* we are allowed to idle, so do so without any timeout */
1205 X_COND_WAIT (reqwait, reqlock);
1206 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1207 }
1208
1209 --idle;
881 } 1210 }
882 1211
883 pthread_mutex_unlock (&reqlock); 1212 --nready;
1213
1214 X_UNLOCK (reqlock);
884 1215
885 errno = 0; /* strictly unnecessary */ 1216 errno = 0; /* strictly unnecessary */
886 type = req->type; /* remember type for QUIT check */
887 1217
888 if (!(req->flags & FLAG_CANCELLED)) 1218 if (!(req->flags & FLAG_CANCELLED))
889 switch (type) 1219 switch (req->type)
890 { 1220 {
891 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 1221 case REQ_READ: req->result = req->offs >= 0
892 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 1222 ? pread (req->int1, req->ptr1, req->size, req->offs)
1223 : read (req->int1, req->ptr1, req->size); break;
1224 case REQ_WRITE: req->result = req->offs >= 0
1225 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1226 : write (req->int1, req->ptr1, req->size); break;
893 1227
894 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 1228 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
895 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; 1229 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
896 1230
897 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; 1231 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
898 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; 1232 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
899 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; 1233 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
900 1234
1235 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1236 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1237 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1238 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1239 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1240 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1241
901 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; 1242 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
902 case REQ_CLOSE: req->result = close (req->fd); break; 1243 case REQ_CLOSE: req->result = close (req->int1); break;
903 case REQ_UNLINK: req->result = unlink (req->dataptr); break; 1244 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
904 case REQ_RMDIR: req->result = rmdir (req->dataptr); break; 1245 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1246 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
905 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break; 1247 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
906 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break; 1248 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
907 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break; 1249 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1250 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1251 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
908 1252
909 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; 1253 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
910 case REQ_FSYNC: req->result = fsync (req->fd); break; 1254 case REQ_FSYNC: req->result = fsync (req->int1); break;
911 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break; 1255 case REQ_READDIR: scandir_ (req, self); break;
912 1256
913 case REQ_BUSY: 1257 case REQ_BUSY:
1258#ifdef _WIN32
1259 Sleep (req->nv1 * 1000.);
1260#else
914 { 1261 {
915 struct timeval tv; 1262 struct timeval tv;
916 1263
917 tv.tv_sec = req->fd; 1264 tv.tv_sec = req->nv1;
918 tv.tv_usec = req->fd2; 1265 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
919 1266
920 req->result = select (0, 0, 0, 0, &tv); 1267 req->result = select (0, 0, 0, 0, &tv);
921 } 1268 }
1269#endif
1270 break;
1271
1272 case REQ_UTIME:
1273 case REQ_FUTIME:
1274 {
1275 struct timeval tv[2];
1276 struct timeval *times;
1277
1278 if (req->nv1 != -1. || req->nv2 != -1.)
1279 {
1280 tv[0].tv_sec = req->nv1;
1281 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1282 tv[1].tv_sec = req->nv2;
1283 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1284
1285 times = tv;
1286 }
1287 else
1288 times = 0;
1289
1290
1291 req->result = req->type == REQ_FUTIME
1292 ? futimes (req->int1, times)
1293 : utimes (req->ptr1, times);
1294 }
922 1295
923 case REQ_GROUP: 1296 case REQ_GROUP:
924 case REQ_NOP: 1297 case REQ_NOP:
1298 break;
1299
925 case REQ_QUIT: 1300 case REQ_QUIT:
926 break; 1301 goto quit;
927 1302
928 default: 1303 default:
929 req->result = ENOSYS; 1304 req->result = -1;
930 break; 1305 break;
931 } 1306 }
932 1307
933 req->errorno = errno; 1308 req->errorno = errno;
934 1309
935 pthread_mutex_lock (&reslock); 1310 X_LOCK (reslock);
1311
1312 ++npending;
936 1313
937 if (!reqq_push (&res_queue, req)) 1314 if (!reqq_push (&res_queue, req))
1315 {
938 /* write a dummy byte to the pipe so fh becomes ready */ 1316 /* write a dummy byte to the pipe so fh becomes ready */
939 write (respipe [1], &respipe, 1); 1317 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
940 1318
941 pthread_mutex_unlock (&reslock); 1319 /* optionally signal the main thread asynchronously */
1320 if (main_sig)
1321 pthread_kill (main_tid, main_sig);
1322 }
1323
1324 self->req = 0;
1325 worker_clear (self);
1326
1327 X_UNLOCK (reslock);
942 } 1328 }
943 while (type != REQ_QUIT); 1329
1330quit:
1331 X_LOCK (wrklock);
1332 worker_free (self);
1333 X_UNLOCK (wrklock);
944 1334
945 return 0; 1335 return 0;
1336 }//D
946} 1337}
947 1338
948/*****************************************************************************/ 1339/*****************************************************************************/
949 1340
950static void atfork_prepare (void) 1341static void atfork_prepare (void)
951{ 1342{
952 pthread_mutex_lock (&reqlock); 1343 X_LOCK (wrklock);
953 pthread_mutex_lock (&reslock); 1344 X_LOCK (reqlock);
1345 X_LOCK (reslock);
954#if !HAVE_PREADWRITE 1346#if !HAVE_PREADWRITE
955 pthread_mutex_lock (&preadwritelock); 1347 X_LOCK (preadwritelock);
956#endif 1348#endif
957#if !HAVE_READDIR_R 1349#if !HAVE_READDIR_R
958 pthread_mutex_lock (&readdirlock); 1350 X_LOCK (readdirlock);
959#endif 1351#endif
960} 1352}
961 1353
962static void atfork_parent (void) 1354static void atfork_parent (void)
963{ 1355{
964#if !HAVE_READDIR_R 1356#if !HAVE_READDIR_R
965 pthread_mutex_unlock (&readdirlock); 1357 X_UNLOCK (readdirlock);
966#endif 1358#endif
967#if !HAVE_PREADWRITE 1359#if !HAVE_PREADWRITE
968 pthread_mutex_unlock (&preadwritelock); 1360 X_UNLOCK (preadwritelock);
969#endif 1361#endif
970 pthread_mutex_unlock (&reslock); 1362 X_UNLOCK (reslock);
971 pthread_mutex_unlock (&reqlock); 1363 X_UNLOCK (reqlock);
1364 X_UNLOCK (wrklock);
972} 1365}
973 1366
974static void atfork_child (void) 1367static void atfork_child (void)
975{ 1368{
976 aio_req prv; 1369 aio_req prv;
977 1370
978 started = 0;
979
980 while (prv = reqq_shift (&req_queue)) 1371 while (prv = reqq_shift (&req_queue))
981 req_free (prv); 1372 req_destroy (prv);
982 1373
983 while (prv = reqq_shift (&res_queue)) 1374 while (prv = reqq_shift (&res_queue))
984 req_free (prv); 1375 req_destroy (prv);
985 1376
986 close (respipe [0]); 1377 while (wrk_first.next != &wrk_first)
987 close (respipe [1]); 1378 {
1379 worker *wrk = wrk_first.next;
1380
1381 if (wrk->req)
1382 req_destroy (wrk->req);
1383
1384 worker_clear (wrk);
1385 worker_free (wrk);
1386 }
1387
1388 started = 0;
1389 idle = 0;
1390 nreqs = 0;
1391 nready = 0;
1392 npending = 0;
1393
988 create_pipe (); 1394 create_respipe ();
989 1395
990 atfork_parent (); 1396 atfork_parent ();
991} 1397}
992 1398
993#define dREQ \ 1399#define dREQ \
1016PROTOTYPES: ENABLE 1422PROTOTYPES: ENABLE
1017 1423
1018BOOT: 1424BOOT:
1019{ 1425{
1020 HV *stash = gv_stashpv ("IO::AIO", 1); 1426 HV *stash = gv_stashpv ("IO::AIO", 1);
1427
1021 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 1428 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1022 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 1429 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1023 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 1430 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1431 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1432 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1433#ifdef _WIN32
1434 X_MUTEX_CHECK (wrklock);
1435 X_MUTEX_CHECK (reslock);
1436 X_MUTEX_CHECK (reqlock);
1437 X_MUTEX_CHECK (reqwait);
1438 X_MUTEX_CHECK (preadwritelock);
1439 X_MUTEX_CHECK (readdirlock);
1024 1440
1025 create_pipe (); 1441 X_COND_CHECK (reqwait);
1442#else
1443 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1444 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1445#endif
1446
1447 create_respipe ();
1448
1026 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 1449 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
1027} 1450}
1028 1451
1029void 1452void
1030min_parallel (nthreads) 1453max_poll_reqs (int nreqs)
1031 int nthreads
1032 PROTOTYPE: $ 1454 PROTOTYPE: $
1455 CODE:
1456 max_poll_reqs = nreqs;
1033 1457
1034void 1458void
1035max_parallel (nthreads) 1459max_poll_time (double nseconds)
1036 int nthreads
1037 PROTOTYPE: $ 1460 PROTOTYPE: $
1461 CODE:
1462 max_poll_time = nseconds * AIO_TICKS;
1463
1464void
1465min_parallel (int nthreads)
1466 PROTOTYPE: $
1467
1468void
1469max_parallel (int nthreads)
1470 PROTOTYPE: $
1471
1472void
1473max_idle (int nthreads)
1474 PROTOTYPE: $
1475 CODE:
1476 set_max_idle (nthreads);
1038 1477
1039int 1478int
1040max_outstanding (nreqs) 1479max_outstanding (int maxreqs)
1041 int nreqs 1480 PROTOTYPE: $
1042 PROTOTYPE: $
1043 CODE: 1481 CODE:
1044 RETVAL = max_outstanding; 1482 RETVAL = max_outstanding;
1045 max_outstanding = nreqs; 1483 max_outstanding = maxreqs;
1484 OUTPUT:
1485 RETVAL
1046 1486
1047void 1487void
1048aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1488aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1049 SV * pathname
1050 int flags
1051 int mode
1052 SV * callback
1053 PROTOTYPE: $$$;$ 1489 PROTOTYPE: $$$;$
1054 PPCODE: 1490 PPCODE:
1055{ 1491{
1056 dREQ; 1492 dREQ;
1057 1493
1058 req->type = REQ_OPEN; 1494 req->type = REQ_OPEN;
1059 req->data = newSVsv (pathname); 1495 req->sv1 = newSVsv (pathname);
1060 req->dataptr = SvPVbyte_nolen (req->data); 1496 req->ptr1 = SvPVbyte_nolen (req->sv1);
1061 req->fd = flags; 1497 req->int1 = flags;
1062 req->mode = mode; 1498 req->mode = mode;
1063 1499
1064 REQ_SEND; 1500 REQ_SEND;
1065} 1501}
1066 1502
1067void 1503void
1068aio_close (fh,callback=&PL_sv_undef) 1504aio_close (SV *fh, SV *callback=&PL_sv_undef)
1069 SV * fh
1070 SV * callback
1071 PROTOTYPE: $;$ 1505 PROTOTYPE: $;$
1072 ALIAS: 1506 ALIAS:
1073 aio_close = REQ_CLOSE 1507 aio_close = REQ_CLOSE
1074 aio_fsync = REQ_FSYNC 1508 aio_fsync = REQ_FSYNC
1075 aio_fdatasync = REQ_FDATASYNC 1509 aio_fdatasync = REQ_FDATASYNC
1076 PPCODE: 1510 PPCODE:
1077{ 1511{
1078 dREQ; 1512 dREQ;
1079 1513
1080 req->type = ix; 1514 req->type = ix;
1081 req->fh = newSVsv (fh); 1515 req->sv1 = newSVsv (fh);
1082 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1516 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1083 1517
1084 REQ_SEND (req); 1518 REQ_SEND (req);
1085} 1519}
1086 1520
1087void 1521void
1088aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1522aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1089 SV * fh
1090 UV offset
1091 UV length
1092 SV * data
1093 UV dataoffset
1094 SV * callback
1095 ALIAS: 1523 ALIAS:
1096 aio_read = REQ_READ 1524 aio_read = REQ_READ
1097 aio_write = REQ_WRITE 1525 aio_write = REQ_WRITE
1098 PROTOTYPE: $$$$$;$ 1526 PROTOTYPE: $$$$$;$
1099 PPCODE: 1527 PPCODE:
1100{ 1528{
1101 aio_req req;
1102 STRLEN svlen; 1529 STRLEN svlen;
1103 char *svptr = SvPVbyte (data, svlen); 1530 char *svptr = SvPVbyte (data, svlen);
1531 UV len = SvUV (length);
1104 1532
1105 SvUPGRADE (data, SVt_PV); 1533 SvUPGRADE (data, SVt_PV);
1106 SvPOK_on (data); 1534 SvPOK_on (data);
1107 1535
1108 if (dataoffset < 0) 1536 if (dataoffset < 0)
1109 dataoffset += svlen; 1537 dataoffset += svlen;
1110 1538
1111 if (dataoffset < 0 || dataoffset > svlen) 1539 if (dataoffset < 0 || dataoffset > svlen)
1112 croak ("data offset outside of string"); 1540 croak ("dataoffset outside of data scalar");
1113 1541
1114 if (ix == REQ_WRITE) 1542 if (ix == REQ_WRITE)
1115 { 1543 {
1116 /* write: check length and adjust. */ 1544 /* write: check length and adjust. */
1117 if (length < 0 || length + dataoffset > svlen) 1545 if (!SvOK (length) || len + dataoffset > svlen)
1118 length = svlen - dataoffset; 1546 len = svlen - dataoffset;
1119 } 1547 }
1120 else 1548 else
1121 { 1549 {
1122 /* read: grow scalar as necessary */ 1550 /* read: grow scalar as necessary */
1123 svptr = SvGROW (data, length + dataoffset); 1551 svptr = SvGROW (data, len + dataoffset + 1);
1124 } 1552 }
1125 1553
1126 if (length < 0) 1554 if (len < 0)
1127 croak ("length must not be negative"); 1555 croak ("length must not be negative");
1128 1556
1129 { 1557 {
1130 dREQ; 1558 dREQ;
1131 1559
1132 req->type = ix; 1560 req->type = ix;
1133 req->fh = newSVsv (fh); 1561 req->sv1 = newSVsv (fh);
1134 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1562 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
1135 : IoOFP (sv_2io (fh))); 1563 : IoOFP (sv_2io (fh)));
1564 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1136 req->offset = offset; 1565 req->size = len;
1137 req->length = length;
1138 req->data = SvREFCNT_inc (data); 1566 req->sv2 = SvREFCNT_inc (data);
1139 req->dataptr = (char *)svptr + dataoffset; 1567 req->ptr1 = (char *)svptr + dataoffset;
1568 req->stroffset = dataoffset;
1140 1569
1141 if (!SvREADONLY (data)) 1570 if (!SvREADONLY (data))
1142 { 1571 {
1143 SvREADONLY_on (data); 1572 SvREADONLY_on (data);
1144 req->data2ptr = (void *)data; 1573 req->flags |= FLAG_SV2_RO_OFF;
1145 } 1574 }
1146 1575
1147 REQ_SEND; 1576 REQ_SEND;
1148 } 1577 }
1149} 1578}
1150 1579
1151void 1580void
1581aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
1582 PROTOTYPE: $$;$
1583 PPCODE:
1584{
1585 SV *data;
1586 dREQ;
1587
1588 data = newSV (NAME_MAX);
1589 SvPOK_on (data);
1590
1591 req->type = REQ_READLINK;
1592 req->sv1 = newSVsv (path);
1593 req->ptr2 = SvPVbyte_nolen (req->sv1);
1594 req->sv2 = data;
1595 req->ptr1 = SvPVbyte_nolen (data);
1596
1597 REQ_SEND;
1598}
1599
1600void
1152aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1601aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1153 SV * out_fh
1154 SV * in_fh
1155 UV in_offset
1156 UV length
1157 SV * callback
1158 PROTOTYPE: $$$$;$ 1602 PROTOTYPE: $$$$;$
1159 PPCODE: 1603 PPCODE:
1160{ 1604{
1161 dREQ; 1605 dREQ;
1162 1606
1163 req->type = REQ_SENDFILE; 1607 req->type = REQ_SENDFILE;
1164 req->fh = newSVsv (out_fh); 1608 req->sv1 = newSVsv (out_fh);
1165 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1609 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1166 req->fh2 = newSVsv (in_fh); 1610 req->sv2 = newSVsv (in_fh);
1167 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1611 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1168 req->offset = in_offset; 1612 req->offs = SvVAL64 (in_offset);
1169 req->length = length; 1613 req->size = length;
1170 1614
1171 REQ_SEND; 1615 REQ_SEND;
1172} 1616}
1173 1617
1174void 1618void
1175aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1619aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1176 SV * fh
1177 UV offset
1178 IV length
1179 SV * callback
1180 PROTOTYPE: $$$;$ 1620 PROTOTYPE: $$$;$
1181 PPCODE: 1621 PPCODE:
1182{ 1622{
1183 dREQ; 1623 dREQ;
1184 1624
1185 req->type = REQ_READAHEAD; 1625 req->type = REQ_READAHEAD;
1186 req->fh = newSVsv (fh); 1626 req->sv1 = newSVsv (fh);
1187 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1627 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1188 req->offset = offset; 1628 req->offs = SvVAL64 (offset);
1189 req->length = length; 1629 req->size = length;
1190 1630
1191 REQ_SEND; 1631 REQ_SEND;
1192} 1632}
1193 1633
1194void 1634void
1195aio_stat (fh_or_path,callback=&PL_sv_undef) 1635aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1196 SV * fh_or_path
1197 SV * callback
1198 ALIAS: 1636 ALIAS:
1199 aio_stat = REQ_STAT 1637 aio_stat = REQ_STAT
1200 aio_lstat = REQ_LSTAT 1638 aio_lstat = REQ_LSTAT
1201 PPCODE: 1639 PPCODE:
1202{ 1640{
1203 dREQ; 1641 dREQ;
1204 1642
1205 New (0, req->statdata, 1, Stat_t); 1643 req->ptr2 = malloc (sizeof (Stat_t));
1206 if (!req->statdata) 1644 if (!req->ptr2)
1207 { 1645 {
1208 req_free (req); 1646 req_destroy (req);
1209 croak ("out of memory during aio_req->statdata allocation"); 1647 croak ("out of memory during aio_stat statdata allocation");
1210 } 1648 }
1649
1650 req->flags |= FLAG_PTR2_FREE;
1651 req->sv1 = newSVsv (fh_or_path);
1211 1652
1212 if (SvPOK (fh_or_path)) 1653 if (SvPOK (fh_or_path))
1213 { 1654 {
1214 req->type = ix; 1655 req->type = ix;
1215 req->data = newSVsv (fh_or_path);
1216 req->dataptr = SvPVbyte_nolen (req->data); 1656 req->ptr1 = SvPVbyte_nolen (req->sv1);
1217 } 1657 }
1218 else 1658 else
1219 { 1659 {
1220 req->type = REQ_FSTAT; 1660 req->type = REQ_FSTAT;
1221 req->fh = newSVsv (fh_or_path);
1222 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1661 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1223 } 1662 }
1224 1663
1225 REQ_SEND; 1664 REQ_SEND;
1226} 1665}
1227 1666
1228void 1667void
1668aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1669 PPCODE:
1670{
1671 dREQ;
1672
1673 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1674 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1675 req->sv1 = newSVsv (fh_or_path);
1676
1677 if (SvPOK (fh_or_path))
1678 {
1679 req->type = REQ_UTIME;
1680 req->ptr1 = SvPVbyte_nolen (req->sv1);
1681 }
1682 else
1683 {
1684 req->type = REQ_FUTIME;
1685 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1686 }
1687
1688 REQ_SEND;
1689}
1690
1691void
1692aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1693 PPCODE:
1694{
1695 dREQ;
1696
1697 req->sv1 = newSVsv (fh_or_path);
1698 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1699
1700 if (SvPOK (fh_or_path))
1701 {
1702 req->type = REQ_TRUNCATE;
1703 req->ptr1 = SvPVbyte_nolen (req->sv1);
1704 }
1705 else
1706 {
1707 req->type = REQ_FTRUNCATE;
1708 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1709 }
1710
1711 REQ_SEND;
1712}
1713
1714void
1715aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1716 PPCODE:
1717{
1718 dREQ;
1719
1720 req->mode = mode;
1721 req->sv1 = newSVsv (fh_or_path);
1722
1723 if (SvPOK (fh_or_path))
1724 {
1725 req->type = REQ_CHMOD;
1726 req->ptr1 = SvPVbyte_nolen (req->sv1);
1727 }
1728 else
1729 {
1730 req->type = REQ_FCHMOD;
1731 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1732 }
1733
1734 REQ_SEND;
1735}
1736
1737void
1738aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1739 PPCODE:
1740{
1741 dREQ;
1742
1743 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1744 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1745 req->sv1 = newSVsv (fh_or_path);
1746
1747 if (SvPOK (fh_or_path))
1748 {
1749 req->type = REQ_CHOWN;
1750 req->ptr1 = SvPVbyte_nolen (req->sv1);
1751 }
1752 else
1753 {
1754 req->type = REQ_FCHOWN;
1755 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1756 }
1757
1758 REQ_SEND;
1759}
1760
1761void
1229aio_unlink (pathname,callback=&PL_sv_undef) 1762aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1230 SV * pathname
1231 SV * callback
1232 ALIAS: 1763 ALIAS:
1233 aio_unlink = REQ_UNLINK 1764 aio_unlink = REQ_UNLINK
1234 aio_rmdir = REQ_RMDIR 1765 aio_rmdir = REQ_RMDIR
1235 aio_readdir = REQ_READDIR 1766 aio_readdir = REQ_READDIR
1236 PPCODE: 1767 PPCODE:
1237{ 1768{
1238 dREQ; 1769 dREQ;
1239 1770
1240 req->type = ix; 1771 req->type = ix;
1241 req->data = newSVsv (pathname); 1772 req->sv1 = newSVsv (pathname);
1242 req->dataptr = SvPVbyte_nolen (req->data); 1773 req->ptr1 = SvPVbyte_nolen (req->sv1);
1774
1775 REQ_SEND;
1776}
1777
1778void
1779aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1780 PPCODE:
1781{
1782 dREQ;
1243 1783
1784 req->type = REQ_MKDIR;
1785 req->sv1 = newSVsv (pathname);
1786 req->ptr1 = SvPVbyte_nolen (req->sv1);
1787 req->mode = mode;
1788
1244 REQ_SEND; 1789 REQ_SEND;
1245} 1790}
1246 1791
1247void 1792void
1248aio_link (oldpath,newpath,callback=&PL_sv_undef) 1793aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1249 SV * oldpath
1250 SV * newpath
1251 SV * callback
1252 ALIAS: 1794 ALIAS:
1253 aio_link = REQ_LINK 1795 aio_link = REQ_LINK
1254 aio_symlink = REQ_SYMLINK 1796 aio_symlink = REQ_SYMLINK
1255 aio_rename = REQ_RENAME 1797 aio_rename = REQ_RENAME
1256 PPCODE: 1798 PPCODE:
1257{ 1799{
1258 dREQ; 1800 dREQ;
1259 1801
1260 req->type = ix; 1802 req->type = ix;
1261 req->fh = newSVsv (oldpath); 1803 req->sv2 = newSVsv (oldpath);
1262 req->data2ptr = SvPVbyte_nolen (req->fh); 1804 req->ptr2 = SvPVbyte_nolen (req->sv2);
1263 req->data = newSVsv (newpath); 1805 req->sv1 = newSVsv (newpath);
1264 req->dataptr = SvPVbyte_nolen (req->data); 1806 req->ptr1 = SvPVbyte_nolen (req->sv1);
1265 1807
1266 REQ_SEND; 1808 REQ_SEND;
1267} 1809}
1268 1810
1269void 1811void
1270aio_busy (delay,callback=&PL_sv_undef) 1812aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1271 double delay
1272 SV * callback
1273 PPCODE: 1813 PPCODE:
1274{ 1814{
1275 dREQ; 1815 dREQ;
1816
1817 req->type = REQ_MKNOD;
1818 req->sv1 = newSVsv (pathname);
1819 req->ptr1 = SvPVbyte_nolen (req->sv1);
1820 req->mode = (mode_t)mode;
1821 req->offs = dev;
1822
1823 REQ_SEND;
1824}
1825
1826void
1827aio_busy (double delay, SV *callback=&PL_sv_undef)
1828 PPCODE:
1829{
1830 dREQ;
1276 1831
1277 req->type = REQ_BUSY; 1832 req->type = REQ_BUSY;
1278 req->fd = delay < 0. ? 0 : delay; 1833 req->nv1 = delay < 0. ? 0. : delay;
1279 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1280 1834
1281 REQ_SEND; 1835 REQ_SEND;
1282} 1836}
1283 1837
1284void 1838void
1285aio_group (callback=&PL_sv_undef) 1839aio_group (SV *callback=&PL_sv_undef)
1286 SV * callback
1287 PROTOTYPE: ;$ 1840 PROTOTYPE: ;$
1288 PPCODE: 1841 PPCODE:
1289{ 1842{
1290 dREQ; 1843 dREQ;
1291 1844
1292 req->type = REQ_GROUP; 1845 req->type = REQ_GROUP;
1846
1293 req_send (req); 1847 req_send (req);
1294
1295 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1848 XPUSHs (req_sv (req, AIO_GRP_KLASS));
1296} 1849}
1297 1850
1298void 1851void
1299aio_nop (callback=&PL_sv_undef) 1852aio_nop (SV *callback=&PL_sv_undef)
1300 SV * callback
1301 PPCODE: 1853 PPCODE:
1302{ 1854{
1303 dREQ; 1855 dREQ;
1304 1856
1305 req->type = REQ_NOP; 1857 req->type = REQ_NOP;
1306 1858
1307 REQ_SEND; 1859 REQ_SEND;
1308} 1860}
1309 1861
1310void 1862int
1311aioreq_pri (int pri = DEFAULT_PRI) 1863aioreq_pri (int pri = 0)
1312 CODE: 1864 PROTOTYPE: ;$
1865 CODE:
1866 RETVAL = next_pri - PRI_BIAS;
1867 if (items > 0)
1868 {
1313 if (pri < PRI_MIN) pri = PRI_MIN; 1869 if (pri < PRI_MIN) pri = PRI_MIN;
1314 if (pri > PRI_MAX) pri = PRI_MAX; 1870 if (pri > PRI_MAX) pri = PRI_MAX;
1315 next_pri = pri + PRI_BIAS; 1871 next_pri = pri + PRI_BIAS;
1872 }
1873 OUTPUT:
1874 RETVAL
1316 1875
1317void 1876void
1318aioreq_nice (int nice = 0) 1877aioreq_nice (int nice = 0)
1319 CODE: 1878 CODE:
1320 nice = next_pri - nice; 1879 nice = next_pri - nice;
1321 if (nice < PRI_MIN) nice = PRI_MIN; 1880 if (nice < PRI_MIN) nice = PRI_MIN;
1322 if (nice > PRI_MAX) nice = PRI_MAX; 1881 if (nice > PRI_MAX) nice = PRI_MAX;
1323 next_pri = nice + PRI_BIAS; 1882 next_pri = nice + PRI_BIAS;
1324 1883
1325void 1884void
1326flush () 1885flush ()
1327 PROTOTYPE: 1886 PROTOTYPE:
1328 CODE: 1887 CODE:
1330 { 1889 {
1331 poll_wait (); 1890 poll_wait ();
1332 poll_cb (); 1891 poll_cb ();
1333 } 1892 }
1334 1893
1335void 1894int
1336poll() 1895poll()
1337 PROTOTYPE: 1896 PROTOTYPE:
1338 CODE: 1897 CODE:
1339 if (nreqs)
1340 {
1341 poll_wait (); 1898 poll_wait ();
1342 poll_cb (); 1899 RETVAL = poll_cb ();
1343 } 1900 OUTPUT:
1901 RETVAL
1344 1902
1345int 1903int
1346poll_fileno() 1904poll_fileno()
1347 PROTOTYPE: 1905 PROTOTYPE:
1348 CODE: 1906 CODE:
1360 1918
1361void 1919void
1362poll_wait() 1920poll_wait()
1363 PROTOTYPE: 1921 PROTOTYPE:
1364 CODE: 1922 CODE:
1365 if (nreqs)
1366 poll_wait (); 1923 poll_wait ();
1924
1925void
1926setsig (int signum = SIGIO)
1927 PROTOTYPE: ;$
1928 CODE:
1929{
1930 if (block_sig_level)
1931 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1932
1933 X_LOCK (reslock);
1934 main_tid = pthread_self ();
1935 main_sig = signum;
1936 X_UNLOCK (reslock);
1937
1938 if (main_sig && npending)
1939 pthread_kill (main_tid, main_sig);
1940}
1941
1942void
1943aio_block (SV *cb)
1944 PROTOTYPE: &
1945 PPCODE:
1946{
1947 int count;
1948
1949 block_sig ();
1950 PUSHMARK (SP);
1951 PUTBACK;
1952 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1953 SPAGAIN;
1954 unblock_sig ();
1955
1956 if (SvTRUE (ERRSV))
1957 croak (0);
1958
1959 XSRETURN (count);
1960}
1367 1961
1368int 1962int
1369nreqs() 1963nreqs()
1370 PROTOTYPE: 1964 PROTOTYPE:
1371 CODE: 1965 CODE:
1372 RETVAL = nreqs; 1966 RETVAL = nreqs;
1373 OUTPUT: 1967 OUTPUT:
1374 RETVAL 1968 RETVAL
1375 1969
1970int
1971nready()
1972 PROTOTYPE:
1973 CODE:
1974 RETVAL = get_nready ();
1975 OUTPUT:
1976 RETVAL
1977
1978int
1979npending()
1980 PROTOTYPE:
1981 CODE:
1982 RETVAL = get_npending ();
1983 OUTPUT:
1984 RETVAL
1985
1986int
1987nthreads()
1988 PROTOTYPE:
1989 CODE:
1990 if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
1991 RETVAL = started;
1992 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1993 OUTPUT:
1994 RETVAL
1995
1376PROTOTYPES: DISABLE 1996PROTOTYPES: DISABLE
1377 1997
1378MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1998MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1379 1999
1380void 2000void
1395 PPCODE: 2015 PPCODE:
1396{ 2016{
1397 int i; 2017 int i;
1398 aio_req req; 2018 aio_req req;
1399 2019
2020 if (main_sig && !block_sig_level)
2021 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2022
1400 if (grp->fd == 2) 2023 if (grp->int1 == 2)
1401 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2024 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1402 2025
1403 for (i = 1; i < items; ++i ) 2026 for (i = 1; i < items; ++i )
1404 { 2027 {
1405 if (GIMME_V != G_VOID) 2028 if (GIMME_V != G_VOID)
1407 2030
1408 req = SvAIO_REQ (ST (i)); 2031 req = SvAIO_REQ (ST (i));
1409 2032
1410 if (req) 2033 if (req)
1411 { 2034 {
1412 ++grp->length; 2035 ++grp->size;
1413 req->grp = grp; 2036 req->grp = grp;
1414 2037
1415 req->grp_prev = 0; 2038 req->grp_prev = 0;
1416 req->grp_next = grp->grp_first; 2039 req->grp_next = grp->grp_first;
1417 2040
1422 } 2045 }
1423 } 2046 }
1424} 2047}
1425 2048
1426void 2049void
2050cancel_subs (aio_req_ornot req)
2051 CODE:
2052 req_cancel_subs (req);
2053
2054void
1427result (aio_req grp, ...) 2055result (aio_req grp, ...)
1428 CODE: 2056 CODE:
1429{ 2057{
1430 int i; 2058 int i;
2059 AV *av;
2060
2061 grp->errorno = errno;
2062
1431 AV *av = newAV (); 2063 av = newAV ();
1432 2064
1433 for (i = 1; i < items; ++i ) 2065 for (i = 1; i < items; ++i )
1434 av_push (av, newSVsv (ST (i))); 2066 av_push (av, newSVsv (ST (i)));
1435 2067
1436 SvREFCNT_dec (grp->data); 2068 SvREFCNT_dec (grp->sv1);
1437 grp->data = (SV *)av; 2069 grp->sv1 = (SV *)av;
1438} 2070}
2071
2072void
2073errno (aio_req grp, int errorno = errno)
2074 CODE:
2075 grp->errorno = errorno;
1439 2076
1440void 2077void
1441limit (aio_req grp, int limit) 2078limit (aio_req grp, int limit)
1442 CODE: 2079 CODE:
1443 grp->fd2 = limit; 2080 grp->int2 = limit;
1444 aio_grp_feed (grp); 2081 aio_grp_feed (grp);
1445 2082
1446void 2083void
1447feed (aio_req grp, SV *callback=&PL_sv_undef) 2084feed (aio_req grp, SV *callback=&PL_sv_undef)
1448 CODE: 2085 CODE:
1449{ 2086{
1450 SvREFCNT_dec (grp->fh2); 2087 SvREFCNT_dec (grp->sv2);
1451 grp->fh2 = newSVsv (callback); 2088 grp->sv2 = newSVsv (callback);
1452 2089
1453 if (grp->fd2 <= 0) 2090 if (grp->int2 <= 0)
1454 grp->fd2 = 2; 2091 grp->int2 = 2;
1455 2092
1456 aio_grp_feed (grp); 2093 aio_grp_feed (grp);
1457} 2094}
1458 2095

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