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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.114 by root, Sat Apr 26 12:00:23 2008 UTC vs.
Revision 1.135 by root, Sun Apr 19 13:06:15 2009 UTC

1#include "xthread.h" 1#include "libeio/xthread.h"
2 2
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"
… …
13#include <sys/stat.h> 13#include <sys/stat.h>
14#include <limits.h> 14#include <limits.h>
15#include <fcntl.h> 15#include <fcntl.h>
16#include <sched.h> 16#include <sched.h>
17 17
18/* perl namespace pollution */
19#undef VERSION
20
18#ifdef _WIN32 21#ifdef _WIN32
19 22
20# define SIGIO 0 23# define EIO_STRUCT_DIRENT Direntry_t
21 typedef Direntry_t X_DIRENT;
22#undef malloc 24# undef malloc
23#undef free 25# undef free
24 26
25// perl overrides all those nice win32 functions 27// perl overrides all those nice win32 functions
26# undef open 28# undef open
27# undef read 29# undef read
28# undef write 30# undef write
… …
54# define closedir(fd) (errno = ENOSYS, -1) 56# define closedir(fd) (errno = ENOSYS, -1)
55# define mkdir(a,b) mkdir (a) 57# define mkdir(a,b) mkdir (a)
56 58
57#else 59#else
58 60
59# include "autoconf/config.h"
60# include <sys/time.h> 61# include <sys/time.h>
61# include <sys/select.h> 62# include <sys/select.h>
62# include <unistd.h> 63# include <unistd.h>
63# include <utime.h> 64# include <utime.h>
64# include <signal.h> 65# include <signal.h>
65 typedef struct dirent X_DIRENT; 66# define EIO_STRUCT_DIRENT struct dirent
66 67
67#endif 68#endif
68 69
69#if HAVE_SENDFILE 70/* perl stupidly overrides readdir and maybe others */
70# if __linux 71/* with thread-unsafe versions, imagine that :( */
71# include <sys/sendfile.h> 72#undef readdir
72# elif __freebsd 73#undef opendir
73# include <sys/socket.h> 74#undef closedir
74# include <sys/uio.h>
75# elif __hpux
76# include <sys/socket.h>
77# elif __solaris /* not yet */
78# include <sys/sendfile.h>
79# else
80# error sendfile support requested but not available
81# endif
82#endif
83 75
84/* number of seconds after which idle threads exit */ 76#define EIO_STRUCT_STAT Stat_t
85#define IDLE_TIMEOUT 10
86
87/* used for struct dirent, AIX doesn't provide it */
88#ifndef NAME_MAX
89# define NAME_MAX 4096
90#endif
91
92/* buffer size for various temporary buffers */
93#define AIO_BUFSIZE 65536
94 77
95/* use NV for 32 bit perls as it allows larger offsets */ 78/* use NV for 32 bit perls as it allows larger offsets */
96#if IVSIZE >= 8 79#if IVSIZE >= 8
97# define SvVAL64 SvIV 80# define SvVAL64 SvIV
98#else 81#else
99# define SvVAL64 SvNV 82# define SvVAL64 SvNV
100#endif 83#endif
101 84
85/*****************************************************************************/
86
87#if __GNUC__ >= 3
88# define expect(expr,value) __builtin_expect ((expr),(value))
89#else
90# define expect(expr,value) (expr)
91#endif
92
93#define expect_false(expr) expect ((expr) != 0, 0)
94#define expect_true(expr) expect ((expr) != 0, 1)
95
96/*****************************************************************************/
97
102static HV *stash; 98static HV *stash;
103
104#define dBUF \
105 char *aio_buf; \
106 X_LOCK (wrklock); \
107 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
108 X_UNLOCK (wrklock); \
109 if (!aio_buf) \
110 return -1;
111
112typedef SV SV8; /* byte-sv, used for argument-checking */ 99typedef SV SV8; /* byte-sv, used for argument-checking */
113
114enum {
115 REQ_QUIT,
116 REQ_OPEN, REQ_CLOSE,
117 REQ_READ, REQ_WRITE,
118 REQ_READAHEAD, REQ_SENDFILE,
119 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
120 REQ_TRUNCATE, REQ_FTRUNCATE,
121 REQ_UTIME, REQ_FUTIME,
122 REQ_CHMOD, REQ_FCHMOD,
123 REQ_CHOWN, REQ_FCHOWN,
124 REQ_SYNC, REQ_FSYNC, REQ_FDATASYNC,
125 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
126 REQ_MKNOD, REQ_READDIR,
127 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
128 REQ_GROUP, REQ_NOP,
129 REQ_BUSY,
130};
131 100
132#define AIO_REQ_KLASS "IO::AIO::REQ" 101#define AIO_REQ_KLASS "IO::AIO::REQ"
133#define AIO_GRP_KLASS "IO::AIO::GRP" 102#define AIO_GRP_KLASS "IO::AIO::GRP"
134 103
135typedef struct aio_cb 104#define EIO_REQ_MEMBERS \
136{
137 struct aio_cb *volatile next;
138
139 SV *callback; 105 SV *callback; \
140 SV *sv1, *sv2; 106 SV *sv1, *sv2; \
141 void *ptr1, *ptr2;
142 off_t offs;
143 size_t size;
144 ssize_t result;
145 double nv1, nv2;
146
147 STRLEN stroffset; 107 STRLEN stroffset; \
148 int type; 108 SV *self;
149 int int1, int2, int3;
150 int errorno;
151 mode_t mode; /* open */
152 109
153 unsigned char flags; 110#define EIO_NO_WRAPPERS 1
154 unsigned char pri;
155 111
156 SV *self; /* the perl counterpart of this request, if any */ 112#include "libeio/eio.h"
157 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 113
158} aio_cb; 114static int req_invoke (eio_req *req);
115#define EIO_FINISH(req) req_invoke (req)
116static void req_destroy (eio_req *grp);
117#define EIO_DESTROY(req) req_destroy (req)
159 118
160enum { 119enum {
161 FLAG_CANCELLED = 0x01, /* request was cancelled */
162 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ 120 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
163 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
164}; 121};
165 122
123#include "libeio/eio.c"
124
166typedef aio_cb *aio_req; 125typedef eio_req *aio_req;
167typedef aio_cb *aio_req_ornot; 126typedef eio_req *aio_req_ornot;
168 127
169enum { 128static SV *on_next_submit;
170 PRI_MIN = -4, 129static int next_pri = EIO_PRI_DEFAULT;
171 PRI_MAX = 4, 130static int max_outstanding;
172 131
173 DEFAULT_PRI = 0,
174 PRI_BIAS = -PRI_MIN,
175 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
176};
177
178#define AIO_TICKS ((1000000 + 1023) >> 10)
179
180static unsigned int max_poll_time = 0;
181static unsigned int max_poll_reqs = 0;
182
183/* calculcate time difference in ~1/AIO_TICKS of a second */
184static int tvdiff (struct timeval *tv1, struct timeval *tv2)
185{
186 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
187 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
188}
189
190static thread_t main_tid;
191static int main_sig;
192static int block_sig_level;
193
194void block_sig (void)
195{
196 sigset_t ss;
197
198 if (block_sig_level++)
199 return;
200
201 if (!main_sig)
202 return;
203
204 sigemptyset (&ss);
205 sigaddset (&ss, main_sig);
206 pthread_sigmask (SIG_BLOCK, &ss, 0);
207}
208
209void unblock_sig (void)
210{
211 sigset_t ss;
212
213 if (--block_sig_level)
214 return;
215
216 if (!main_sig)
217 return;
218
219 sigemptyset (&ss);
220 sigaddset (&ss, main_sig);
221 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
222}
223
224static int next_pri = DEFAULT_PRI + PRI_BIAS;
225
226static unsigned int started, idle, wanted;
227
228/* worker threads management */
229static mutex_t wrklock = X_MUTEX_INIT;
230
231typedef struct worker {
232 /* locked by wrklock */
233 struct worker *prev, *next;
234
235 thread_t tid;
236
237 /* locked by reslock, reqlock or wrklock */
238 aio_req req; /* currently processed request */
239 void *dbuf;
240 DIR *dirp;
241} worker;
242
243static worker wrk_first = { &wrk_first, &wrk_first, 0 };
244
245static void worker_clear (worker *wrk)
246{
247 if (wrk->dirp)
248 {
249 closedir (wrk->dirp);
250 wrk->dirp = 0;
251 }
252
253 if (wrk->dbuf)
254 {
255 free (wrk->dbuf);
256 wrk->dbuf = 0;
257 }
258}
259
260static void worker_free (worker *wrk)
261{
262 wrk->next->prev = wrk->prev;
263 wrk->prev->next = wrk->next;
264
265 free (wrk);
266}
267
268static volatile unsigned int nreqs, nready, npending;
269static volatile unsigned int max_idle = 4;
270static volatile unsigned int max_outstanding = 0xffffffff;
271static int respipe_osf [2], respipe [2] = { -1, -1 }; 132static int respipe_osf [2], respipe [2] = { -1, -1 };
272 133
273static mutex_t reslock = X_MUTEX_INIT;
274static mutex_t reqlock = X_MUTEX_INIT;
275static cond_t reqwait = X_COND_INIT;
276
277#if WORDACCESS_UNSAFE
278
279static unsigned int get_nready (void)
280{
281 unsigned int retval;
282
283 X_LOCK (reqlock);
284 retval = nready;
285 X_UNLOCK (reqlock);
286
287 return retval;
288}
289
290static unsigned int get_npending (void)
291{
292 unsigned int retval;
293
294 X_LOCK (reslock);
295 retval = npending;
296 X_UNLOCK (reslock);
297
298 return retval;
299}
300
301static unsigned int get_nthreads (void)
302{
303 unsigned int retval;
304
305 X_LOCK (wrklock);
306 retval = started;
307 X_UNLOCK (wrklock);
308
309 return retval;
310}
311
312#else
313
314# define get_nready() nready
315# define get_npending() npending
316# define get_nthreads() started
317
318#endif
319
320/*
321 * a somewhat faster data structure might be nice, but
322 * with 8 priorities this actually needs <20 insns
323 * per shift, the most expensive operation.
324 */
325typedef struct {
326 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
327 int size;
328} reqq;
329
330static reqq req_queue;
331static reqq res_queue;
332
333int reqq_push (reqq *q, aio_req req)
334{
335 int pri = req->pri;
336 req->next = 0;
337
338 if (q->qe[pri])
339 {
340 q->qe[pri]->next = req;
341 q->qe[pri] = req;
342 }
343 else
344 q->qe[pri] = q->qs[pri] = req;
345
346 return q->size++;
347}
348
349aio_req reqq_shift (reqq *q)
350{
351 int pri;
352
353 if (!q->size)
354 return 0;
355
356 --q->size;
357
358 for (pri = NUM_PRI; pri--; )
359 {
360 aio_req req = q->qs[pri];
361
362 if (req)
363 {
364 if (!(q->qs[pri] = req->next))
365 q->qe[pri] = 0;
366
367 return req;
368 }
369 }
370
371 abort ();
372}
373
374static int poll_cb (void);
375static int req_invoke (aio_req req);
376static void req_destroy (aio_req req); 134static void req_destroy (aio_req req);
377static void req_cancel (aio_req req); 135static void req_cancel (aio_req req);
136
137static void want_poll (void)
138{
139 /* write a dummy byte to the pipe so fh becomes ready */
140 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
141}
142
143static void done_poll (void)
144{
145 /* read any signals sent by the worker threads */
146 char buf [4];
147 while (respipe_read (respipe [0], buf, 4) == 4)
148 ;
149}
378 150
379/* must be called at most once */ 151/* must be called at most once */
380static SV *req_sv (aio_req req, const char *klass) 152static SV *req_sv (aio_req req, const char *klass)
381{ 153{
382 if (!req->self) 154 if (!req->self)
… …
400 return mg ? (aio_req)mg->mg_ptr : 0; 172 return mg ? (aio_req)mg->mg_ptr : 0;
401} 173}
402 174
403static void aio_grp_feed (aio_req grp) 175static void aio_grp_feed (aio_req grp)
404{ 176{
405 block_sig (); 177 if (grp->sv2 && SvOK (grp->sv2))
406
407 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
408 { 178 {
409 int old_len = grp->size;
410
411 if (grp->sv2 && SvOK (grp->sv2))
412 {
413 dSP; 179 dSP;
414 180
415 ENTER; 181 ENTER;
416 SAVETMPS; 182 SAVETMPS;
417 PUSHMARK (SP); 183 PUSHMARK (SP);
418 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 184 XPUSHs (req_sv (grp, AIO_GRP_KLASS));
419 PUTBACK; 185 PUTBACK;
420 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 186 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
421 SPAGAIN; 187 SPAGAIN;
422 FREETMPS; 188 FREETMPS;
423 LEAVE; 189 LEAVE;
424 }
425
426 /* stop if no progress has been made */
427 if (old_len == grp->size)
428 {
429 SvREFCNT_dec (grp->sv2);
430 grp->sv2 = 0;
431 break;
432 }
433 } 190 }
434
435 unblock_sig ();
436} 191}
437 192
438static void aio_grp_dec (aio_req grp) 193static void req_submit (eio_req *req)
439{ 194{
440 --grp->size; 195 eio_submit (req);
441 196
442 /* call feeder, if applicable */ 197 if (expect_false (on_next_submit))
443 aio_grp_feed (grp);
444
445 /* finish, if done */
446 if (!grp->size && grp->int1)
447 { 198 {
448 block_sig (); 199 dSP;
200 SV *cb = sv_2mortal (on_next_submit);
449 201
450 if (!req_invoke (grp)) 202 on_next_submit = 0;
451 {
452 req_destroy (grp);
453 unblock_sig ();
454 croak (0);
455 }
456 203
457 req_destroy (grp); 204 PUSHMARK (SP);
458 unblock_sig (); 205 PUTBACK;
206 call_sv (cb, G_DISCARD | G_EVAL);
459 } 207 }
460} 208}
461 209
462static int req_invoke (aio_req req) 210static int req_invoke (eio_req *req)
463{ 211{
464 dSP; 212 dSP;
465 213
466 if (req->flags & FLAG_SV2_RO_OFF) 214 if (req->flags & FLAG_SV2_RO_OFF)
467 SvREADONLY_off (req->sv2); 215 SvREADONLY_off (req->sv2);
468 216
469 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 217 if (!EIO_CANCELLED (req) && req->callback)
470 { 218 {
471 ENTER; 219 ENTER;
472 SAVETMPS; 220 SAVETMPS;
473 PUSHMARK (SP); 221 PUSHMARK (SP);
474 EXTEND (SP, 1); 222 EXTEND (SP, 1);
475 223
476 switch (req->type) 224 switch (req->type)
477 { 225 {
478 case REQ_READDIR: 226 case EIO_READDIR:
479 { 227 {
480 SV *rv = &PL_sv_undef; 228 SV *rv = &PL_sv_undef;
481 229
482 if (req->result >= 0) 230 if (req->result >= 0)
483 { 231 {
… …
500 248
501 PUSHs (rv); 249 PUSHs (rv);
502 } 250 }
503 break; 251 break;
504 252
505 case REQ_OPEN: 253 case EIO_OPEN:
506 { 254 {
507 /* convert fd to fh */ 255 /* convert fd to fh */
508 SV *fh = &PL_sv_undef; 256 SV *fh = &PL_sv_undef;
509 257
510 if (req->result >= 0) 258 if (req->result >= 0)
… …
531 279
532 PUSHs (fh); 280 PUSHs (fh);
533 } 281 }
534 break; 282 break;
535 283
536 case REQ_GROUP: 284 case EIO_GROUP:
537 req->int1 = 2; /* mark group as finished */ 285 req->int1 = 2; /* mark group as finished */
538 286
539 if (req->sv1) 287 if (req->sv1)
540 { 288 {
541 int i; 289 int i;
… …
545 for (i = 0; i <= AvFILL (av); ++i) 293 for (i = 0; i <= AvFILL (av); ++i)
546 PUSHs (*av_fetch (av, i, 0)); 294 PUSHs (*av_fetch (av, i, 0));
547 } 295 }
548 break; 296 break;
549 297
550 case REQ_NOP: 298 case EIO_NOP:
551 case REQ_BUSY: 299 case EIO_BUSY:
552 break; 300 break;
553 301
554 case REQ_READLINK: 302 case EIO_READLINK:
555 if (req->result > 0) 303 if (req->result > 0)
556 { 304 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
557 SvCUR_set (req->sv2, req->result);
558 *SvEND (req->sv2) = 0;
559 PUSHs (req->sv2);
560 }
561 break; 305 break;
562 306
563 case REQ_STAT: 307 case EIO_STAT:
564 case REQ_LSTAT: 308 case EIO_LSTAT:
565 case REQ_FSTAT: 309 case EIO_FSTAT:
566 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 310 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
567 PL_laststatval = req->result; 311 PL_laststatval = req->result;
568 PL_statcache = *(Stat_t *)(req->ptr2); 312 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
569 PUSHs (sv_2mortal (newSViv (req->result))); 313 PUSHs (sv_2mortal (newSViv (req->result)));
570 break; 314 break;
571 315
572 case REQ_READ: 316 case EIO_READ:
573 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 317 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
574 *SvEND (req->sv2) = 0; 318 *SvEND (req->sv2) = 0;
575 PUSHs (sv_2mortal (newSViv (req->result))); 319 PUSHs (sv_2mortal (newSViv (req->result)));
576 break; 320 break;
577 321
322 case EIO_DUP2:
323 if (req->result > 0)
324 req->result = 0;
325 /* FALLTHROUGH */
326
578 default: 327 default:
579 PUSHs (sv_2mortal (newSViv (req->result))); 328 PUSHs (sv_2mortal (newSViv (req->result)));
580 break; 329 break;
581 } 330 }
582 331
… …
590 LEAVE; 339 LEAVE;
591 340
592 PUTBACK; 341 PUTBACK;
593 } 342 }
594 343
595 if (req->grp)
596 {
597 aio_req grp = req->grp;
598
599 /* unlink request */
600 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
601 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
602
603 if (grp->grp_first == req)
604 grp->grp_first = req->grp_next;
605
606 aio_grp_dec (grp);
607 }
608
609 return !SvTRUE (ERRSV); 344 return !!SvTRUE (ERRSV);
610} 345}
611 346
612static void req_destroy (aio_req req) 347static void req_destroy (aio_req req)
613{ 348{
614 if (req->self) 349 if (req->self)
… …
619 354
620 SvREFCNT_dec (req->sv1); 355 SvREFCNT_dec (req->sv1);
621 SvREFCNT_dec (req->sv2); 356 SvREFCNT_dec (req->sv2);
622 SvREFCNT_dec (req->callback); 357 SvREFCNT_dec (req->callback);
623 358
624 if (req->flags & FLAG_PTR2_FREE)
625 free (req->ptr2);
626
627 Safefree (req); 359 Safefree (req);
628} 360}
629 361
630static void req_cancel_subs (aio_req grp) 362static void req_cancel_subs (aio_req grp)
631{ 363{
632 aio_req sub; 364 aio_req sub;
633 365
634 if (grp->type != REQ_GROUP) 366 if (grp->type != EIO_GROUP)
635 return; 367 return;
636 368
637 SvREFCNT_dec (grp->sv2); 369 SvREFCNT_dec (grp->sv2);
638 grp->sv2 = 0; 370 grp->sv2 = 0;
639 371
640 for (sub = grp->grp_first; sub; sub = sub->grp_next) 372 eio_grp_cancel (grp);
641 req_cancel (sub);
642}
643
644static void req_cancel (aio_req req)
645{
646 req->flags |= FLAG_CANCELLED;
647
648 req_cancel_subs (req);
649} 373}
650 374
651#ifdef USE_SOCKETS_AS_HANDLES 375#ifdef USE_SOCKETS_AS_HANDLES
652# define TO_SOCKET(x) (win32_get_osfhandle (x)) 376# define TO_SOCKET(x) (win32_get_osfhandle (x))
653#else 377#else
… …
690 414
691 respipe_osf [0] = TO_SOCKET (respipe [0]); 415 respipe_osf [0] = TO_SOCKET (respipe [0]);
692 respipe_osf [1] = TO_SOCKET (respipe [1]); 416 respipe_osf [1] = TO_SOCKET (respipe [1]);
693} 417}
694 418
695X_THREAD_PROC (aio_proc);
696
697static void start_thread (void)
698{
699 worker *wrk = calloc (1, sizeof (worker));
700
701 if (!wrk)
702 croak ("unable to allocate worker thread data");
703
704 X_LOCK (wrklock);
705
706 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
707 {
708 wrk->prev = &wrk_first;
709 wrk->next = wrk_first.next;
710 wrk_first.next->prev = wrk;
711 wrk_first.next = wrk;
712 ++started;
713 }
714 else
715 free (wrk);
716
717 X_UNLOCK (wrklock);
718}
719
720static void maybe_start_thread (void)
721{
722 if (get_nthreads () >= wanted)
723 return;
724
725 /* todo: maybe use idle here, but might be less exact */
726 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
727 return;
728
729 start_thread ();
730}
731
732static void req_send (aio_req req)
733{
734 block_sig ();
735
736 ++nreqs;
737
738 X_LOCK (reqlock);
739 ++nready;
740 reqq_push (&req_queue, req);
741 X_COND_SIGNAL (reqwait);
742 X_UNLOCK (reqlock);
743
744 unblock_sig ();
745
746 maybe_start_thread ();
747}
748
749static void end_thread (void)
750{
751 aio_req req;
752
753 Newz (0, req, 1, aio_cb);
754
755 req->type = REQ_QUIT;
756 req->pri = PRI_MAX + PRI_BIAS;
757
758 X_LOCK (reqlock);
759 reqq_push (&req_queue, req);
760 X_COND_SIGNAL (reqwait);
761 X_UNLOCK (reqlock);
762
763 X_LOCK (wrklock);
764 --started;
765 X_UNLOCK (wrklock);
766}
767
768static void set_max_idle (int nthreads)
769{
770 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
771 max_idle = nthreads <= 0 ? 1 : nthreads;
772 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
773}
774
775static void min_parallel (int nthreads)
776{
777 if (wanted < nthreads)
778 wanted = nthreads;
779}
780
781static void max_parallel (int nthreads)
782{
783 if (wanted > nthreads)
784 wanted = nthreads;
785
786 while (started > wanted)
787 end_thread ();
788}
789
790static void poll_wait (void) 419static void poll_wait (void)
791{ 420{
792 fd_set rfd; 421 fd_set rfd;
793 422
794 while (nreqs) 423 while (eio_nreqs ())
795 { 424 {
796 int size; 425 int size;
797 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 426
427 X_LOCK (reslock);
798 size = res_queue.size; 428 size = res_queue.size;
799 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 429 X_UNLOCK (reslock);
800 430
801 if (size) 431 if (size)
802 return; 432 return;
803 433
804 maybe_start_thread (); 434 etp_maybe_start_thread ();
805 435
806 FD_ZERO (&rfd); 436 FD_ZERO (&rfd);
807 FD_SET (respipe [0], &rfd); 437 FD_SET (respipe [0], &rfd);
808 438
809 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0); 439 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
810 } 440 }
811} 441}
812 442
813static int poll_cb (void) 443static int poll_cb (void)
814{ 444{
815 dSP;
816 int count = 0;
817 int maxreqs = max_poll_reqs;
818 int do_croak = 0;
819 struct timeval tv_start, tv_now;
820 aio_req req;
821
822 if (max_poll_time)
823 gettimeofday (&tv_start, 0);
824
825 block_sig ();
826
827 for (;;) 445 for (;;)
828 { 446 {
829 for (;;) 447 int res = eio_poll ();
830 {
831 maybe_start_thread ();
832 448
833 X_LOCK (reslock); 449 if (res > 0)
834 req = reqq_shift (&res_queue);
835
836 if (req)
837 {
838 --npending;
839
840 if (!res_queue.size)
841 {
842 /* read any signals sent by the worker threads */
843 char buf [4];
844 while (respipe_read (respipe [0], buf, 4) == 4)
845 ;
846 }
847 }
848
849 X_UNLOCK (reslock);
850
851 if (!req)
852 break;
853
854 --nreqs;
855
856 if (req->type == REQ_GROUP && req->size)
857 {
858 req->int1 = 1; /* mark request as delayed */
859 continue;
860 }
861 else
862 {
863 if (!req_invoke (req))
864 {
865 req_destroy (req);
866 unblock_sig ();
867 croak (0); 450 croak (0);
868 }
869 451
870 count++; 452 if (!max_outstanding || max_outstanding > eio_nreqs ())
871 } 453 return res;
872
873 req_destroy (req);
874
875 if (maxreqs && !--maxreqs)
876 break;
877
878 if (max_poll_time)
879 {
880 gettimeofday (&tv_now, 0);
881
882 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
883 break;
884 }
885 }
886
887 if (nreqs <= max_outstanding)
888 break;
889 454
890 poll_wait (); 455 poll_wait ();
891
892 ++maxreqs;
893 } 456 }
894
895 unblock_sig ();
896 return count;
897} 457}
898 458
899/*****************************************************************************/ 459static void atfork_child (void)
900/* work around various missing functions */
901
902#if !HAVE_PREADWRITE
903# define pread aio_pread
904# define pwrite aio_pwrite
905
906/*
907 * make our pread/pwrite safe against themselves, but not against
908 * normal read/write by using a mutex. slows down execution a lot,
909 * but that's your problem, not mine.
910 */
911static mutex_t preadwritelock = X_MUTEX_INIT;
912
913static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
914{ 460{
915 ssize_t res; 461 create_respipe ();
916 off_t ooffset;
917
918 X_LOCK (preadwritelock);
919 ooffset = lseek (fd, 0, SEEK_CUR);
920 lseek (fd, offset, SEEK_SET);
921 res = read (fd, buf, count);
922 lseek (fd, ooffset, SEEK_SET);
923 X_UNLOCK (preadwritelock);
924
925 return res;
926} 462}
927 463
928static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 464static SV *
465get_cb (SV *cb_sv)
929{ 466{
930 ssize_t res; 467 HV *st;
931 off_t ooffset; 468 GV *gvp;
469 CV *cv;
932 470
933 X_LOCK (preadwritelock); 471 if (!SvOK (cb_sv))
934 ooffset = lseek (fd, 0, SEEK_CUR);
935 lseek (fd, offset, SEEK_SET);
936 res = write (fd, buf, count);
937 lseek (fd, offset, SEEK_SET);
938 X_UNLOCK (preadwritelock);
939
940 return res;
941}
942#endif
943
944#ifndef HAVE_FUTIMES
945
946# define utimes(path,times) aio_utimes (path, times)
947# define futimes(fd,times) aio_futimes (fd, times)
948
949int aio_utimes (const char *filename, const struct timeval times[2])
950{
951 if (times)
952 {
953 struct utimbuf buf;
954
955 buf.actime = times[0].tv_sec;
956 buf.modtime = times[1].tv_sec;
957
958 return utime (filename, &buf);
959 }
960 else
961 return utime (filename, 0);
962}
963
964int aio_futimes (int fd, const struct timeval tv[2])
965{
966 errno = ENOSYS;
967 return -1;
968}
969
970#endif
971
972#if !HAVE_FDATASYNC
973# define fdatasync fsync
974#endif
975
976#if !HAVE_READAHEAD
977# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
978
979static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
980{
981 size_t todo = count;
982 dBUF;
983
984 while (todo > 0)
985 {
986 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
987
988 pread (fd, aio_buf, len, offset);
989 offset += len;
990 todo -= len;
991 }
992
993 errno = 0;
994 return count;
995}
996
997#endif
998
999#if !HAVE_READDIR_R
1000# define readdir_r aio_readdir_r
1001
1002static mutex_t readdirlock = X_MUTEX_INIT;
1003
1004static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
1005{
1006 X_DIRENT *e;
1007 int errorno;
1008
1009 X_LOCK (readdirlock);
1010
1011 e = readdir (dirp);
1012 errorno = errno;
1013
1014 if (e)
1015 {
1016 *res = ent;
1017 strcpy (ent->d_name, e->d_name);
1018 }
1019 else
1020 *res = 0;
1021
1022 X_UNLOCK (readdirlock);
1023
1024 errno = errorno;
1025 return e ? 0 : -1;
1026}
1027#endif
1028
1029/* sendfile always needs emulation */
1030static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
1031{
1032 ssize_t res;
1033
1034 if (!count)
1035 return 0; 472 return 0;
1036 473
1037#if HAVE_SENDFILE 474 cv = sv_2cv (cb_sv, &st, &gvp, 0);
1038# if __linux
1039 res = sendfile (ofd, ifd, &offset, count);
1040 475
1041# elif __freebsd 476 if (!cv)
1042 /* 477 croak ("IO::AIO callback must be undef or a CODE reference");
1043 * Of course, the freebsd sendfile is a dire hack with no thoughts
1044 * wasted on making it similar to other I/O functions.
1045 */
1046 {
1047 off_t sbytes;
1048 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1049 478
1050 if (res < 0 && sbytes) 479 return (SV *)cv;
1051 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1052 res = sbytes;
1053 }
1054
1055# elif __hpux
1056 res = sendfile (ofd, ifd, offset, count, 0, 0);
1057
1058# elif __solaris
1059 {
1060 struct sendfilevec vec;
1061 size_t sbytes;
1062
1063 vec.sfv_fd = ifd;
1064 vec.sfv_flag = 0;
1065 vec.sfv_off = offset;
1066 vec.sfv_len = count;
1067
1068 res = sendfilev (ofd, &vec, 1, &sbytes);
1069
1070 if (res < 0 && sbytes)
1071 res = sbytes;
1072 }
1073
1074# endif
1075#else
1076 res = -1;
1077 errno = ENOSYS;
1078#endif
1079
1080 if (res < 0
1081 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1082#if __solaris
1083 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1084#endif
1085 )
1086 )
1087 {
1088 /* emulate sendfile. this is a major pain in the ass */
1089 dBUF;
1090
1091 res = 0;
1092
1093 while (count)
1094 {
1095 ssize_t cnt;
1096
1097 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1098
1099 if (cnt <= 0)
1100 {
1101 if (cnt && !res) res = -1;
1102 break;
1103 }
1104
1105 cnt = write (ofd, aio_buf, cnt);
1106
1107 if (cnt <= 0)
1108 {
1109 if (cnt && !res) res = -1;
1110 break;
1111 }
1112
1113 offset += cnt;
1114 res += cnt;
1115 count -= cnt;
1116 }
1117 }
1118
1119 return res;
1120}
1121
1122/* read a full directory */
1123static void scandir_ (aio_req req, worker *self)
1124{
1125 DIR *dirp;
1126 union
1127 {
1128 X_DIRENT d;
1129 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1130 } *u;
1131 X_DIRENT *entp;
1132 char *name, *names;
1133 int memlen = 4096;
1134 int memofs = 0;
1135 int res = 0;
1136
1137 X_LOCK (wrklock);
1138 self->dirp = dirp = opendir (req->ptr1);
1139 self->dbuf = u = malloc (sizeof (*u));
1140 req->flags |= FLAG_PTR2_FREE;
1141 req->ptr2 = names = malloc (memlen);
1142 X_UNLOCK (wrklock);
1143
1144 if (dirp && u && names)
1145 for (;;)
1146 {
1147 errno = 0;
1148 readdir_r (dirp, &u->d, &entp);
1149
1150 if (!entp)
1151 break;
1152
1153 name = entp->d_name;
1154
1155 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1156 {
1157 int len = strlen (name) + 1;
1158
1159 res++;
1160
1161 while (memofs + len > memlen)
1162 {
1163 memlen *= 2;
1164 X_LOCK (wrklock);
1165 req->ptr2 = names = realloc (names, memlen);
1166 X_UNLOCK (wrklock);
1167
1168 if (!names)
1169 break;
1170 }
1171
1172 memcpy (names + memofs, name, len);
1173 memofs += len;
1174 }
1175 }
1176
1177 if (errno)
1178 res = -1;
1179
1180 req->result = res;
1181}
1182
1183static int
1184aio_close (int fd)
1185{
1186 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
1187
1188 X_LOCK (wrklock);
1189
1190 if (close_pipe < 0)
1191 {
1192 int pipefd [2];
1193
1194 if (pipe (pipefd) < 0
1195 || close (pipefd [1]) < 0
1196 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
1197 {
1198 X_UNLOCK (wrklock);
1199 return -1;
1200 }
1201
1202 close_pipe = pipefd [0];
1203 }
1204
1205 X_UNLOCK (wrklock);
1206
1207 return dup2 (close_pipe, fd) < 0 ? -1 : 0;
1208}
1209
1210/*****************************************************************************/
1211
1212X_THREAD_PROC (aio_proc)
1213{
1214 aio_req req;
1215 struct timespec ts;
1216 worker *self = (worker *)thr_arg;
1217
1218 /* try to distribute timeouts somewhat randomly */
1219 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1220
1221 for (;;)
1222 {
1223 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1224
1225 X_LOCK (reqlock);
1226
1227 for (;;)
1228 {
1229 self->req = req = reqq_shift (&req_queue);
1230
1231 if (req)
1232 break;
1233
1234 ++idle;
1235
1236 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1237 == ETIMEDOUT)
1238 {
1239 if (idle > max_idle)
1240 {
1241 --idle;
1242 X_UNLOCK (reqlock);
1243 X_LOCK (wrklock);
1244 --started;
1245 X_UNLOCK (wrklock);
1246 goto quit;
1247 }
1248
1249 /* we are allowed to idle, so do so without any timeout */
1250 X_COND_WAIT (reqwait, reqlock);
1251 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1252 }
1253
1254 --idle;
1255 }
1256
1257 --nready;
1258
1259 X_UNLOCK (reqlock);
1260
1261 errno = 0; /* strictly unnecessary */
1262
1263 if (!(req->flags & FLAG_CANCELLED))
1264 switch (req->type)
1265 {
1266 case REQ_READ: req->result = req->offs >= 0
1267 ? pread (req->int1, req->ptr1, req->size, req->offs)
1268 : read (req->int1, req->ptr1, req->size); break;
1269 case REQ_WRITE: req->result = req->offs >= 0
1270 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1271 : write (req->int1, req->ptr1, req->size); break;
1272
1273 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1274 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1275
1276 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1277 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1278 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1279
1280 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1281 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1282 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1283 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1284 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1285 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1286
1287 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1288 case REQ_CLOSE: req->result = aio_close (req->int1); break;
1289 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1290 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1291 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1292 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1293 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1294 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1295 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1296 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1297
1298 case REQ_SYNC: req->result = 0; sync (); break;
1299 case REQ_FSYNC: req->result = fsync (req->int1); break;
1300 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1301
1302 case REQ_READDIR: scandir_ (req, self); break;
1303
1304 case REQ_BUSY:
1305#ifdef _WIN32
1306 Sleep (req->nv1 * 1000.);
1307#else
1308 {
1309 struct timeval tv;
1310
1311 tv.tv_sec = req->nv1;
1312 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1313
1314 req->result = select (0, 0, 0, 0, &tv);
1315 }
1316#endif
1317 break;
1318
1319 case REQ_UTIME:
1320 case REQ_FUTIME:
1321 {
1322 struct timeval tv[2];
1323 struct timeval *times;
1324
1325 if (req->nv1 != -1. || req->nv2 != -1.)
1326 {
1327 tv[0].tv_sec = req->nv1;
1328 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1329 tv[1].tv_sec = req->nv2;
1330 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1331
1332 times = tv;
1333 }
1334 else
1335 times = 0;
1336
1337
1338 req->result = req->type == REQ_FUTIME
1339 ? futimes (req->int1, times)
1340 : utimes (req->ptr1, times);
1341 }
1342
1343 case REQ_GROUP:
1344 case REQ_NOP:
1345 break;
1346
1347 case REQ_QUIT:
1348 goto quit;
1349
1350 default:
1351 req->result = -1;
1352 break;
1353 }
1354
1355 req->errorno = errno;
1356
1357 X_LOCK (reslock);
1358
1359 ++npending;
1360
1361 if (!reqq_push (&res_queue, req))
1362 {
1363 /* write a dummy byte to the pipe so fh becomes ready */
1364 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
1365
1366 /* optionally signal the main thread asynchronously */
1367 if (main_sig)
1368 pthread_kill (main_tid, main_sig);
1369 }
1370
1371 self->req = 0;
1372 worker_clear (self);
1373
1374 X_UNLOCK (reslock);
1375 }
1376
1377quit:
1378 X_LOCK (wrklock);
1379 worker_free (self);
1380 X_UNLOCK (wrklock);
1381
1382 return 0;
1383}
1384
1385/*****************************************************************************/
1386
1387static void atfork_prepare (void)
1388{
1389 X_LOCK (wrklock);
1390 X_LOCK (reqlock);
1391 X_LOCK (reslock);
1392#if !HAVE_PREADWRITE
1393 X_LOCK (preadwritelock);
1394#endif
1395#if !HAVE_READDIR_R
1396 X_LOCK (readdirlock);
1397#endif
1398}
1399
1400static void atfork_parent (void)
1401{
1402#if !HAVE_READDIR_R
1403 X_UNLOCK (readdirlock);
1404#endif
1405#if !HAVE_PREADWRITE
1406 X_UNLOCK (preadwritelock);
1407#endif
1408 X_UNLOCK (reslock);
1409 X_UNLOCK (reqlock);
1410 X_UNLOCK (wrklock);
1411}
1412
1413static void atfork_child (void)
1414{
1415 aio_req prv;
1416
1417 while (prv = reqq_shift (&req_queue))
1418 req_destroy (prv);
1419
1420 while (prv = reqq_shift (&res_queue))
1421 req_destroy (prv);
1422
1423 while (wrk_first.next != &wrk_first)
1424 {
1425 worker *wrk = wrk_first.next;
1426
1427 if (wrk->req)
1428 req_destroy (wrk->req);
1429
1430 worker_clear (wrk);
1431 worker_free (wrk);
1432 }
1433
1434 started = 0;
1435 idle = 0;
1436 nreqs = 0;
1437 nready = 0;
1438 npending = 0;
1439
1440 create_respipe ();
1441
1442 atfork_parent ();
1443} 480}
1444 481
1445#define dREQ \ 482#define dREQ \
483 SV *cb_cv; \
1446 aio_req req; \ 484 aio_req req; \
1447 int req_pri = next_pri; \ 485 int req_pri = next_pri; \
1448 next_pri = DEFAULT_PRI + PRI_BIAS; \ 486 next_pri = EIO_PRI_DEFAULT; \
1449 \ 487 \
1450 if (SvOK (callback) && !SvROK (callback)) \ 488 cb_cv = get_cb (callback); \
1451 croak ("callback must be undef or of reference type"); \
1452 \ 489 \
1453 Newz (0, req, 1, aio_cb); \ 490 Newz (0, req, 1, eio_req); \
1454 if (!req) \ 491 if (!req) \
1455 croak ("out of memory during aio_req allocation"); \ 492 croak ("out of memory during eio_req allocation"); \
1456 \ 493 \
1457 req->callback = newSVsv (callback); \ 494 req->callback = SvREFCNT_inc (cb_cv); \
1458 req->pri = req_pri 495 req->pri = req_pri
1459 496
1460#define REQ_SEND \ 497#define REQ_SEND \
498 PUTBACK; \
1461 req_send (req); \ 499 req_submit (req); \
500 SPAGAIN; \
1462 \ 501 \
1463 if (GIMME_V != G_VOID) \ 502 if (GIMME_V != G_VOID) \
1464 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 503 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1465 504
1466MODULE = IO::AIO PACKAGE = IO::AIO 505MODULE = IO::AIO PACKAGE = IO::AIO
… …
1474 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 513 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1475 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 514 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1476 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 515 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1477 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); 516 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1478 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); 517 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1479#ifdef _WIN32 518#ifndef _WIN32
1480 X_MUTEX_CHECK (wrklock);
1481 X_MUTEX_CHECK (reslock);
1482 X_MUTEX_CHECK (reqlock);
1483 X_MUTEX_CHECK (reqwait);
1484 X_MUTEX_CHECK (preadwritelock);
1485 X_MUTEX_CHECK (readdirlock);
1486
1487 X_COND_CHECK (reqwait);
1488#else
1489 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); 519 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1490 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1491#endif 520#endif
521 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
522 newCONSTSUB (stash, "SYNC_FILE_RANGE_WAIT_BEFORE", newSViv (EIO_SYNC_FILE_RANGE_WAIT_BEFORE));
523 newCONSTSUB (stash, "SYNC_FILE_RANGE_WRITE" , newSViv (EIO_SYNC_FILE_RANGE_WRITE));
524 newCONSTSUB (stash, "SYNC_FILE_RANGE_WAIT_AFTER" , newSViv (EIO_SYNC_FILE_RANGE_WAIT_AFTER));
1492 525
1493 create_respipe (); 526 create_respipe ();
1494 527
1495 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child); 528 if (eio_init (want_poll, done_poll) < 0)
529 croak ("IO::AIO: unable to initialise eio library");
530
531 /* atfork child called in fifo order, so before eio's handler */
532 X_THREAD_ATFORK (0, 0, atfork_child);
1496} 533}
1497 534
1498void 535void
1499max_poll_reqs (int nreqs) 536max_poll_reqs (int nreqs)
1500 PROTOTYPE: $ 537 PROTOTYPE: $
1501 CODE: 538 CODE:
1502 max_poll_reqs = nreqs; 539 eio_set_max_poll_reqs (nreqs);
1503 540
1504void 541void
1505max_poll_time (double nseconds) 542max_poll_time (double nseconds)
1506 PROTOTYPE: $ 543 PROTOTYPE: $
1507 CODE: 544 CODE:
1508 max_poll_time = nseconds * AIO_TICKS; 545 eio_set_max_poll_time (nseconds);
1509 546
1510void 547void
1511min_parallel (int nthreads) 548min_parallel (int nthreads)
1512 PROTOTYPE: $ 549 PROTOTYPE: $
550 CODE:
551 eio_set_min_parallel (nthreads);
1513 552
1514void 553void
1515max_parallel (int nthreads) 554max_parallel (int nthreads)
1516 PROTOTYPE: $ 555 PROTOTYPE: $
556 CODE:
557 eio_set_max_parallel (nthreads);
1517 558
1518void 559void
1519max_idle (int nthreads) 560max_idle (int nthreads)
1520 PROTOTYPE: $ 561 PROTOTYPE: $
1521 CODE: 562 CODE:
1522 set_max_idle (nthreads); 563 eio_set_max_idle (nthreads);
1523 564
1524int 565void
1525max_outstanding (int maxreqs) 566max_outstanding (int maxreqs)
1526 PROTOTYPE: $ 567 PROTOTYPE: $
1527 CODE: 568 CODE:
1528 RETVAL = max_outstanding;
1529 max_outstanding = maxreqs; 569 max_outstanding = maxreqs;
1530 OUTPUT:
1531 RETVAL
1532 570
1533void 571void
1534aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 572aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1535 PROTOTYPE: $$$;$ 573 PROTOTYPE: $$$;$
1536 PPCODE: 574 PPCODE:
1537{ 575{
1538 dREQ; 576 dREQ;
1539 577
1540 req->type = REQ_OPEN; 578 req->type = EIO_OPEN;
1541 req->sv1 = newSVsv (pathname); 579 req->sv1 = newSVsv (pathname);
1542 req->ptr1 = SvPVbyte_nolen (req->sv1); 580 req->ptr1 = SvPVbyte_nolen (req->sv1);
1543 req->int1 = flags; 581 req->int1 = flags;
1544 req->mode = mode; 582 req->int2 = mode;
1545 583
1546 REQ_SEND; 584 REQ_SEND;
1547} 585}
1548 586
1549void 587void
1550aio_fsync (SV *fh, SV *callback=&PL_sv_undef) 588aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1551 PROTOTYPE: $;$ 589 PROTOTYPE: $;$
1552 ALIAS: 590 ALIAS:
1553 aio_fsync = REQ_FSYNC 591 aio_fsync = EIO_FSYNC
1554 aio_fdatasync = REQ_FDATASYNC 592 aio_fdatasync = EIO_FDATASYNC
1555 PPCODE: 593 PPCODE:
1556{ 594{
1557 dREQ; 595 dREQ;
1558 596
1559 req->type = ix; 597 req->type = ix;
… …
1562 600
1563 REQ_SEND (req); 601 REQ_SEND (req);
1564} 602}
1565 603
1566void 604void
605aio_sync_file_range (SV *fh, SV *offset, SV *nbytes, IV flags, SV *callback=&PL_sv_undef)
606 PROTOTYPE: $$$$;$
607 PPCODE:
608{
609 dREQ;
610
611 req->type = EIO_SYNC_FILE_RANGE;
612 req->sv1 = newSVsv (fh);
613 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
614 req->offs = SvVAL64 (offset);
615 req->size = SvVAL64 (nbytes);
616 req->int2 = flags;
617
618 REQ_SEND (req);
619}
620
621void
1567aio_close (SV *fh, SV *callback=&PL_sv_undef) 622aio_close (SV *fh, SV *callback=&PL_sv_undef)
1568 PROTOTYPE: $;$ 623 PROTOTYPE: $;$
1569 PPCODE: 624 PPCODE:
1570{ 625{
626 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
1571 dREQ; 627 dREQ;
1572 628
629 if (close_pipe < 0)
630 {
631 int pipefd [2];
632
633 if (pipe (pipefd) < 0
634 || close (pipefd [1]) < 0
635 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
636 abort (); /*D*/
637
638 close_pipe = pipefd [0];
639 }
640
1573 req->type = REQ_CLOSE; 641 req->type = EIO_DUP2;
642 req->int1 = close_pipe;
1574 req->sv1 = newSVsv (fh); 643 req->sv2 = newSVsv (fh);
1575 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 644 req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1576 645
1577 REQ_SEND (req); 646 REQ_SEND (req);
1578} 647}
1579 648
1580void 649void
1581aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 650aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1582 ALIAS: 651 ALIAS:
1583 aio_read = REQ_READ 652 aio_read = EIO_READ
1584 aio_write = REQ_WRITE 653 aio_write = EIO_WRITE
1585 PROTOTYPE: $$$$$;$ 654 PROTOTYPE: $$$$$;$
1586 PPCODE: 655 PPCODE:
1587{ 656{
1588 STRLEN svlen; 657 STRLEN svlen;
1589 char *svptr = SvPVbyte (data, svlen); 658 char *svptr = SvPVbyte (data, svlen);
1590 UV len = SvUV (length); 659 UV len = SvUV (length);
660 int fd;
661
662 if (SvTYPE (data) > SVt_PVMG)
663 croak ("illegal data argument '%s', must be plain scalar string", SvPV_nolen (data));
1591 664
1592 SvUPGRADE (data, SVt_PV); 665 SvUPGRADE (data, SVt_PV);
1593 SvPOK_on (data); 666 SvPOK_only (data);
1594 667
1595 if (dataoffset < 0) 668 if (dataoffset < 0)
1596 dataoffset += svlen; 669 dataoffset += svlen;
1597 670
1598 if (dataoffset < 0 || dataoffset > svlen) 671 if (dataoffset < 0 || dataoffset > svlen)
1599 croak ("dataoffset outside of data scalar"); 672 croak ("dataoffset outside of data scalar");
1600 673
1601 if (ix == REQ_WRITE) 674 if (ix == EIO_WRITE)
1602 { 675 {
1603 /* write: check length and adjust. */ 676 /* write: check length and adjust. */
1604 if (!SvOK (length) || len + dataoffset > svlen) 677 if (!SvOK (length) || len + dataoffset > svlen)
1605 len = svlen - dataoffset; 678 len = svlen - dataoffset;
1606 } 679 }
… …
1611 } 684 }
1612 685
1613 if (len < 0) 686 if (len < 0)
1614 croak ("length must not be negative"); 687 croak ("length must not be negative");
1615 688
689 fd = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))
690 : IoOFP (sv_2io (fh)));
691
692 if (fd < 0)
693 croak ("illegal fh argument, either not an OS file or read/write mode mismatch");
694
1616 { 695 {
1617 dREQ; 696 dREQ;
1618 697
1619 req->type = ix; 698 req->type = ix;
1620 req->sv1 = newSVsv (fh); 699 req->sv1 = newSVsv (fh);
1621 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 700 req->int1 = fd;
1622 : IoOFP (sv_2io (fh)));
1623 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 701 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1624 req->size = len; 702 req->size = len;
1625 req->sv2 = SvREFCNT_inc (data); 703 req->sv2 = SvREFCNT_inc (data);
1626 req->ptr1 = (char *)svptr + dataoffset; 704 req->ptr2 = (char *)svptr + dataoffset;
1627 req->stroffset = dataoffset; 705 req->stroffset = dataoffset;
1628 706
1629 if (!SvREADONLY (data)) 707 if (!SvREADONLY (data))
1630 { 708 {
1631 SvREADONLY_on (data); 709 SvREADONLY_on (data);
… …
1642 PPCODE: 720 PPCODE:
1643{ 721{
1644 SV *data; 722 SV *data;
1645 dREQ; 723 dREQ;
1646 724
1647 data = newSV (NAME_MAX);
1648 SvPOK_on (data);
1649
1650 req->type = REQ_READLINK; 725 req->type = EIO_READLINK;
1651 req->sv1 = newSVsv (path); 726 req->sv1 = newSVsv (path);
1652 req->ptr2 = SvPVbyte_nolen (req->sv1); 727 req->ptr1 = SvPVbyte_nolen (req->sv1);
1653 req->sv2 = data;
1654 req->ptr1 = SvPVbyte_nolen (data);
1655 728
1656 REQ_SEND; 729 REQ_SEND;
1657} 730}
1658 731
1659void 732void
… …
1661 PROTOTYPE: $$$$;$ 734 PROTOTYPE: $$$$;$
1662 PPCODE: 735 PPCODE:
1663{ 736{
1664 dREQ; 737 dREQ;
1665 738
1666 req->type = REQ_SENDFILE; 739 req->type = EIO_SENDFILE;
1667 req->sv1 = newSVsv (out_fh); 740 req->sv1 = newSVsv (out_fh);
1668 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 741 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1669 req->sv2 = newSVsv (in_fh); 742 req->sv2 = newSVsv (in_fh);
1670 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 743 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1671 req->offs = SvVAL64 (in_offset); 744 req->offs = SvVAL64 (in_offset);
… …
1679 PROTOTYPE: $$$;$ 752 PROTOTYPE: $$$;$
1680 PPCODE: 753 PPCODE:
1681{ 754{
1682 dREQ; 755 dREQ;
1683 756
1684 req->type = REQ_READAHEAD; 757 req->type = EIO_READAHEAD;
1685 req->sv1 = newSVsv (fh); 758 req->sv1 = newSVsv (fh);
1686 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 759 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1687 req->offs = SvVAL64 (offset); 760 req->offs = SvVAL64 (offset);
1688 req->size = length; 761 req->size = length;
1689 762
… …
1691} 764}
1692 765
1693void 766void
1694aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 767aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1695 ALIAS: 768 ALIAS:
1696 aio_stat = REQ_STAT 769 aio_stat = EIO_STAT
1697 aio_lstat = REQ_LSTAT 770 aio_lstat = EIO_LSTAT
1698 PPCODE: 771 PPCODE:
1699{ 772{
1700 dREQ; 773 dREQ;
1701 774
1702 req->ptr2 = malloc (sizeof (Stat_t));
1703 if (!req->ptr2)
1704 {
1705 req_destroy (req);
1706 croak ("out of memory during aio_stat statdata allocation");
1707 }
1708
1709 req->flags |= FLAG_PTR2_FREE;
1710 req->sv1 = newSVsv (fh_or_path); 775 req->sv1 = newSVsv (fh_or_path);
1711 776
1712 if (SvPOK (fh_or_path)) 777 if (SvPOK (req->sv1))
1713 { 778 {
1714 req->type = ix; 779 req->type = ix;
1715 req->ptr1 = SvPVbyte_nolen (req->sv1); 780 req->ptr1 = SvPVbyte_nolen (req->sv1);
1716 } 781 }
1717 else 782 else
1718 { 783 {
1719 req->type = REQ_FSTAT; 784 req->type = EIO_FSTAT;
1720 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 785 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1721 } 786 }
1722 787
1723 REQ_SEND; 788 REQ_SEND;
1724} 789}
… …
1731 796
1732 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 797 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1733 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 798 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1734 req->sv1 = newSVsv (fh_or_path); 799 req->sv1 = newSVsv (fh_or_path);
1735 800
1736 if (SvPOK (fh_or_path)) 801 if (SvPOK (req->sv1))
1737 { 802 {
1738 req->type = REQ_UTIME; 803 req->type = EIO_UTIME;
1739 req->ptr1 = SvPVbyte_nolen (req->sv1); 804 req->ptr1 = SvPVbyte_nolen (req->sv1);
1740 } 805 }
1741 else 806 else
1742 { 807 {
1743 req->type = REQ_FUTIME; 808 req->type = EIO_FUTIME;
1744 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 809 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1745 } 810 }
1746 811
1747 REQ_SEND; 812 REQ_SEND;
1748} 813}
… …
1754 dREQ; 819 dREQ;
1755 820
1756 req->sv1 = newSVsv (fh_or_path); 821 req->sv1 = newSVsv (fh_or_path);
1757 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 822 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1758 823
1759 if (SvPOK (fh_or_path)) 824 if (SvPOK (req->sv1))
1760 { 825 {
1761 req->type = REQ_TRUNCATE; 826 req->type = EIO_TRUNCATE;
1762 req->ptr1 = SvPVbyte_nolen (req->sv1); 827 req->ptr1 = SvPVbyte_nolen (req->sv1);
1763 } 828 }
1764 else 829 else
1765 { 830 {
1766 req->type = REQ_FTRUNCATE; 831 req->type = EIO_FTRUNCATE;
1767 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 832 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1768 } 833 }
1769 834
1770 REQ_SEND; 835 REQ_SEND;
1771} 836}
1772 837
1773void 838void
1774aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 839aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
840 ALIAS:
841 aio_chmod = EIO_CHMOD
842 aio_mkdir = EIO_MKDIR
1775 PPCODE: 843 PPCODE:
1776{ 844{
1777 dREQ; 845 dREQ;
1778 846
1779 req->mode = mode; 847 req->int2 = mode;
1780 req->sv1 = newSVsv (fh_or_path); 848 req->sv1 = newSVsv (fh_or_path);
1781 849
1782 if (SvPOK (fh_or_path)) 850 if (SvPOK (req->sv1))
1783 { 851 {
1784 req->type = REQ_CHMOD; 852 req->type = ix;
1785 req->ptr1 = SvPVbyte_nolen (req->sv1); 853 req->ptr1 = SvPVbyte_nolen (req->sv1);
1786 } 854 }
1787 else 855 else
1788 { 856 {
1789 req->type = REQ_FCHMOD; 857 req->type = EIO_FCHMOD;
1790 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 858 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1791 } 859 }
1792 860
1793 REQ_SEND; 861 REQ_SEND;
1794} 862}
… …
1801 869
1802 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 870 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1803 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 871 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1804 req->sv1 = newSVsv (fh_or_path); 872 req->sv1 = newSVsv (fh_or_path);
1805 873
1806 if (SvPOK (fh_or_path)) 874 if (SvPOK (req->sv1))
1807 { 875 {
1808 req->type = REQ_CHOWN; 876 req->type = EIO_CHOWN;
1809 req->ptr1 = SvPVbyte_nolen (req->sv1); 877 req->ptr1 = SvPVbyte_nolen (req->sv1);
1810 } 878 }
1811 else 879 else
1812 { 880 {
1813 req->type = REQ_FCHOWN; 881 req->type = EIO_FCHOWN;
1814 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 882 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1815 } 883 }
1816 884
1817 REQ_SEND; 885 REQ_SEND;
1818} 886}
1819 887
1820void 888void
1821aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 889aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1822 ALIAS: 890 ALIAS:
1823 aio_unlink = REQ_UNLINK 891 aio_unlink = EIO_UNLINK
1824 aio_rmdir = REQ_RMDIR 892 aio_rmdir = EIO_RMDIR
1825 aio_readdir = REQ_READDIR 893 aio_readdir = EIO_READDIR
1826 PPCODE: 894 PPCODE:
1827{ 895{
1828 dREQ; 896 dREQ;
1829 897
1830 req->type = ix; 898 req->type = ix;
… …
1833 901
1834 REQ_SEND; 902 REQ_SEND;
1835} 903}
1836 904
1837void 905void
1838aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 906aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
907 ALIAS:
908 aio_link = EIO_LINK
909 aio_symlink = EIO_SYMLINK
910 aio_rename = EIO_RENAME
1839 PPCODE: 911 PPCODE:
1840{ 912{
1841 dREQ; 913 dREQ;
1842 914
915 req->type = ix;
916 req->sv1 = newSVsv (oldpath);
917 req->ptr1 = SvPVbyte_nolen (req->sv1);
918 req->sv2 = newSVsv (newpath);
919 req->ptr2 = SvPVbyte_nolen (req->sv2);
920
921 REQ_SEND;
922}
923
924void
925aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
926 PPCODE:
927{
928 dREQ;
929
1843 req->type = REQ_MKDIR; 930 req->type = EIO_MKNOD;
1844 req->sv1 = newSVsv (pathname); 931 req->sv1 = newSVsv (pathname);
1845 req->ptr1 = SvPVbyte_nolen (req->sv1); 932 req->ptr1 = SvPVbyte_nolen (req->sv1);
1846 req->mode = mode;
1847
1848 REQ_SEND;
1849}
1850
1851void
1852aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1853 ALIAS:
1854 aio_link = REQ_LINK
1855 aio_symlink = REQ_SYMLINK
1856 aio_rename = REQ_RENAME
1857 PPCODE:
1858{
1859 dREQ;
1860
1861 req->type = ix;
1862 req->sv2 = newSVsv (oldpath);
1863 req->ptr2 = SvPVbyte_nolen (req->sv2);
1864 req->sv1 = newSVsv (newpath);
1865 req->ptr1 = SvPVbyte_nolen (req->sv1);
1866
1867 REQ_SEND;
1868}
1869
1870void
1871aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1872 PPCODE:
1873{
1874 dREQ;
1875
1876 req->type = REQ_MKNOD;
1877 req->sv1 = newSVsv (pathname);
1878 req->ptr1 = SvPVbyte_nolen (req->sv1);
1879 req->mode = (mode_t)mode; 933 req->int2 = (mode_t)mode;
1880 req->offs = dev; 934 req->offs = dev;
1881 935
1882 REQ_SEND; 936 REQ_SEND;
1883} 937}
1884 938
… …
1886aio_busy (double delay, SV *callback=&PL_sv_undef) 940aio_busy (double delay, SV *callback=&PL_sv_undef)
1887 PPCODE: 941 PPCODE:
1888{ 942{
1889 dREQ; 943 dREQ;
1890 944
1891 req->type = REQ_BUSY; 945 req->type = EIO_BUSY;
1892 req->nv1 = delay < 0. ? 0. : delay; 946 req->nv1 = delay < 0. ? 0. : delay;
1893 947
1894 REQ_SEND; 948 REQ_SEND;
1895} 949}
1896 950
… …
1899 PROTOTYPE: ;$ 953 PROTOTYPE: ;$
1900 PPCODE: 954 PPCODE:
1901{ 955{
1902 dREQ; 956 dREQ;
1903 957
1904 req->type = REQ_GROUP; 958 req->type = EIO_GROUP;
1905 959
1906 req_send (req); 960 req_submit (req);
1907 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 961 XPUSHs (req_sv (req, AIO_GRP_KLASS));
1908} 962}
1909 963
1910void 964void
1911aio_nop (SV *callback=&PL_sv_undef) 965aio_nop (SV *callback=&PL_sv_undef)
1912 ALIAS: 966 ALIAS:
1913 aio_nop = REQ_NOP 967 aio_nop = EIO_NOP
1914 aio_sync = REQ_SYNC 968 aio_sync = EIO_SYNC
1915 PPCODE: 969 PPCODE:
1916{ 970{
1917 dREQ; 971 dREQ;
1918 972
1919 req->type = ix; 973 req->type = ix;
… …
1923 977
1924int 978int
1925aioreq_pri (int pri = 0) 979aioreq_pri (int pri = 0)
1926 PROTOTYPE: ;$ 980 PROTOTYPE: ;$
1927 CODE: 981 CODE:
1928 RETVAL = next_pri - PRI_BIAS; 982 RETVAL = next_pri;
1929 if (items > 0) 983 if (items > 0)
1930 { 984 {
1931 if (pri < PRI_MIN) pri = PRI_MIN; 985 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1932 if (pri > PRI_MAX) pri = PRI_MAX; 986 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1933 next_pri = pri + PRI_BIAS; 987 next_pri = pri;
1934 } 988 }
1935 OUTPUT: 989 OUTPUT:
1936 RETVAL 990 RETVAL
1937 991
1938void 992void
1939aioreq_nice (int nice = 0) 993aioreq_nice (int nice = 0)
1940 CODE: 994 CODE:
1941 nice = next_pri - nice; 995 nice = next_pri - nice;
1942 if (nice < PRI_MIN) nice = PRI_MIN; 996 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1943 if (nice > PRI_MAX) nice = PRI_MAX; 997 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1944 next_pri = nice + PRI_BIAS; 998 next_pri = nice;
1945 999
1946void 1000void
1947flush () 1001flush ()
1948 PROTOTYPE: 1002 PROTOTYPE:
1949 CODE: 1003 CODE:
1950 while (nreqs) 1004 while (eio_nreqs ())
1951 { 1005 {
1952 poll_wait (); 1006 poll_wait ();
1953 poll_cb (); 1007 poll_cb ();
1954 } 1008 }
1955 1009
… …
1982poll_wait() 1036poll_wait()
1983 PROTOTYPE: 1037 PROTOTYPE:
1984 CODE: 1038 CODE:
1985 poll_wait (); 1039 poll_wait ();
1986 1040
1987void
1988setsig (int signum = SIGIO)
1989 PROTOTYPE: ;$
1990 CODE:
1991{
1992 if (block_sig_level)
1993 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1994
1995 X_LOCK (reslock);
1996 main_tid = pthread_self ();
1997 main_sig = signum;
1998 X_UNLOCK (reslock);
1999
2000 if (main_sig && npending)
2001 pthread_kill (main_tid, main_sig);
2002}
2003
2004void
2005aio_block (SV *cb)
2006 PROTOTYPE: &
2007 PPCODE:
2008{
2009 int count;
2010
2011 block_sig ();
2012 PUSHMARK (SP);
2013 PUTBACK;
2014 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
2015 unblock_sig ();
2016
2017 if (SvTRUE (ERRSV))
2018 croak (0);
2019
2020 XSRETURN (count);
2021}
2022
2023int 1041int
2024nreqs() 1042nreqs()
2025 PROTOTYPE: 1043 PROTOTYPE:
2026 CODE: 1044 CODE:
2027 RETVAL = nreqs; 1045 RETVAL = eio_nreqs ();
2028 OUTPUT: 1046 OUTPUT:
2029 RETVAL 1047 RETVAL
2030 1048
2031int 1049int
2032nready() 1050nready()
2033 PROTOTYPE: 1051 PROTOTYPE:
2034 CODE: 1052 CODE:
2035 RETVAL = get_nready (); 1053 RETVAL = eio_nready ();
2036 OUTPUT: 1054 OUTPUT:
2037 RETVAL 1055 RETVAL
2038 1056
2039int 1057int
2040npending() 1058npending()
2041 PROTOTYPE: 1059 PROTOTYPE:
2042 CODE: 1060 CODE:
2043 RETVAL = get_npending (); 1061 RETVAL = eio_npending ();
2044 OUTPUT: 1062 OUTPUT:
2045 RETVAL 1063 RETVAL
2046 1064
2047int 1065int
2048nthreads() 1066nthreads()
2049 PROTOTYPE: 1067 PROTOTYPE:
2050 CODE: 1068 CODE:
2051 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1069 RETVAL = eio_nthreads ();
2052 RETVAL = started;
2053 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
2054 OUTPUT: 1070 OUTPUT:
2055 RETVAL 1071 RETVAL
2056 1072
1073void _on_next_submit (SV *cb)
1074 CODE:
1075 SvREFCNT_dec (on_next_submit);
1076 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1077
2057PROTOTYPES: DISABLE 1078PROTOTYPES: DISABLE
2058 1079
2059MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1080MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2060 1081
2061void 1082void
2062cancel (aio_req_ornot req) 1083cancel (aio_req_ornot req)
2063 CODE: 1084 CODE:
2064 req_cancel (req); 1085 eio_cancel (req);
2065 1086
2066void 1087void
2067cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1088cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
2068 CODE: 1089 PPCODE:
1090{
1091 if (GIMME_V != G_VOID)
1092 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1093
1094 if (items > 1)
1095 {
1096 SV *cb_cv = get_cb (callback);
1097
2069 SvREFCNT_dec (req->callback); 1098 SvREFCNT_dec (req->callback);
2070 req->callback = newSVsv (callback); 1099 req->callback = SvREFCNT_inc (cb_cv);
1100 }
1101}
2071 1102
2072MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1103MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2073 1104
2074void 1105void
2075add (aio_req grp, ...) 1106add (aio_req grp, ...)
2076 PPCODE: 1107 PPCODE:
2077{ 1108{
2078 int i; 1109 int i;
2079 aio_req req;
2080
2081 if (main_sig && !block_sig_level)
2082 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2083 1110
2084 if (grp->int1 == 2) 1111 if (grp->int1 == 2)
2085 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1112 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2086 1113
2087 for (i = 1; i < items; ++i ) 1114 for (i = 1; i < items; ++i )
2088 { 1115 {
1116 aio_req req;
1117
2089 if (GIMME_V != G_VOID) 1118 if (GIMME_V != G_VOID)
2090 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1119 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2091 1120
2092 req = SvAIO_REQ (ST (i)); 1121 req = SvAIO_REQ (ST (i));
2093 1122
2094 if (req) 1123 if (req)
2095 { 1124 eio_grp_add (grp, req);
2096 ++grp->size;
2097 req->grp = grp;
2098
2099 req->grp_prev = 0;
2100 req->grp_next = grp->grp_first;
2101
2102 if (grp->grp_first)
2103 grp->grp_first->grp_prev = req;
2104
2105 grp->grp_first = req;
2106 }
2107 } 1125 }
2108} 1126}
2109 1127
2110void 1128void
2111cancel_subs (aio_req_ornot req) 1129cancel_subs (aio_req_ornot req)
… …
2136 grp->errorno = errorno; 1154 grp->errorno = errorno;
2137 1155
2138void 1156void
2139limit (aio_req grp, int limit) 1157limit (aio_req grp, int limit)
2140 CODE: 1158 CODE:
2141 grp->int2 = limit; 1159 eio_grp_limit (grp, limit);
2142 aio_grp_feed (grp);
2143 1160
2144void 1161void
2145feed (aio_req grp, SV *callback=&PL_sv_undef) 1162feed (aio_req grp, SV *callback=&PL_sv_undef)
2146 CODE: 1163 CODE:
2147{ 1164{
2148 SvREFCNT_dec (grp->sv2); 1165 SvREFCNT_dec (grp->sv2);
2149 grp->sv2 = newSVsv (callback); 1166 grp->sv2 = newSVsv (callback);
1167 grp->feed = aio_grp_feed;
2150 1168
2151 if (grp->int2 <= 0) 1169 if (grp->int2 <= 0)
2152 grp->int2 = 2; 1170 grp->int2 = 2;
2153 1171
2154 aio_grp_feed (grp); 1172 eio_grp_limit (grp, grp->int2);
2155} 1173}
2156 1174

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