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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.104 by root, Sun Jul 8 11:05:36 2007 UTC vs.
Revision 1.130 by root, Thu Oct 2 11:35:03 2008 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
102#define dBUF \ 85/*****************************************************************************/
103 char *aio_buf; \
104 X_LOCK (wrklock); \
105 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
106 X_UNLOCK (wrklock); \
107 if (!aio_buf) \
108 return -1;
109 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
98static HV *stash;
110typedef SV SV8; /* byte-sv, used for argument-checking */ 99typedef SV SV8; /* byte-sv, used for argument-checking */
111
112enum {
113 REQ_QUIT,
114 REQ_OPEN, REQ_CLOSE,
115 REQ_READ, REQ_WRITE,
116 REQ_READAHEAD, REQ_SENDFILE,
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,
122 REQ_FSYNC, REQ_FDATASYNC,
123 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
124 REQ_MKNOD, REQ_READDIR,
125 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
126 REQ_GROUP, REQ_NOP,
127 REQ_BUSY,
128};
129 100
130#define AIO_REQ_KLASS "IO::AIO::REQ" 101#define AIO_REQ_KLASS "IO::AIO::REQ"
131#define AIO_GRP_KLASS "IO::AIO::GRP" 102#define AIO_GRP_KLASS "IO::AIO::GRP"
132 103
133typedef struct aio_cb 104#define EIO_REQ_MEMBERS \
134{
135 struct aio_cb *volatile next;
136
137 SV *callback; 105 SV *callback; \
138 SV *sv1, *sv2; 106 SV *sv1, *sv2; \
139 void *ptr1, *ptr2;
140 off_t offs;
141 size_t size;
142 ssize_t result;
143 double nv1, nv2;
144
145 STRLEN stroffset; 107 STRLEN stroffset; \
146 int type; 108 SV *self;
147 int int1, int2, int3;
148 int errorno;
149 mode_t mode; /* open */
150 109
151 unsigned char flags; 110#define EIO_NO_WRAPPERS 1
152 unsigned char pri;
153 111
154 SV *self; /* the perl counterpart of this request, if any */ 112#include "libeio/eio.h"
155 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 113
156} aio_cb; 114static int req_invoke (eio_req *req);
115#define EIO_FINISH(req) req_invoke (req)
116static void aio_grp_feed (eio_req *grp);
117#define EIO_FEED(req) aio_grp_feed (req)
118static void req_destroy (eio_req *grp);
119#define EIO_DESTROY(req) req_destroy (req)
157 120
158enum { 121enum {
159 FLAG_CANCELLED = 0x01, /* request was cancelled */
160 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ 122 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
161 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
162}; 123};
163 124
125#include "libeio/eio.c"
126
164typedef aio_cb *aio_req; 127typedef eio_req *aio_req;
165typedef aio_cb *aio_req_ornot; 128typedef eio_req *aio_req_ornot;
166 129
167enum { 130static SV *on_next_submit;
168 PRI_MIN = -4, 131static int next_pri = EIO_PRI_DEFAULT;
169 PRI_MAX = 4, 132static int max_outstanding;
170 133
171 DEFAULT_PRI = 0, 134static int respipe_osf [2], respipe [2] = { -1, -1 };
172 PRI_BIAS = -PRI_MIN,
173 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
174};
175 135
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
222static int next_pri = DEFAULT_PRI + PRI_BIAS;
223
224static unsigned int started, idle, wanted;
225
226/* worker threads management */
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 [2], respipe_osf [2];
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
310#else
311
312# define get_nready() nready
313# define get_npending() npending
314# define get_nthreads() started
315
316#endif
317
318/*
319 * a somewhat faster data structure might be nice, but
320 * with 8 priorities this actually needs <20 insns
321 * per shift, the most expensive operation.
322 */
323typedef struct {
324 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
325 int size;
326} reqq;
327
328static reqq req_queue;
329static reqq res_queue;
330
331int reqq_push (reqq *q, aio_req req)
332{
333 int pri = req->pri;
334 req->next = 0;
335
336 if (q->qe[pri])
337 {
338 q->qe[pri]->next = req;
339 q->qe[pri] = req;
340 }
341 else
342 q->qe[pri] = q->qs[pri] = req;
343
344 return q->size++;
345}
346
347aio_req reqq_shift (reqq *q)
348{
349 int pri;
350
351 if (!q->size)
352 return 0;
353
354 --q->size;
355
356 for (pri = NUM_PRI; pri--; )
357 {
358 aio_req req = q->qs[pri];
359
360 if (req)
361 {
362 if (!(q->qs[pri] = req->next))
363 q->qe[pri] = 0;
364
365 return req;
366 }
367 }
368
369 abort ();
370}
371
372static int poll_cb ();
373static int req_invoke (aio_req req);
374static void req_destroy (aio_req req); 136static void req_destroy (aio_req req);
375static void req_cancel (aio_req req); 137static void req_cancel (aio_req req);
138
139static void want_poll (void)
140{
141 /* write a dummy byte to the pipe so fh becomes ready */
142 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
143}
144
145static void done_poll (void)
146{
147 /* read any signals sent by the worker threads */
148 char buf [4];
149 while (respipe_read (respipe [0], buf, 4) == 4)
150 ;
151}
376 152
377/* must be called at most once */ 153/* must be called at most once */
378static SV *req_sv (aio_req req, const char *klass) 154static SV *req_sv (aio_req req, const char *klass)
379{ 155{
380 if (!req->self) 156 if (!req->self)
… …
398 return mg ? (aio_req)mg->mg_ptr : 0; 174 return mg ? (aio_req)mg->mg_ptr : 0;
399} 175}
400 176
401static void aio_grp_feed (aio_req grp) 177static void aio_grp_feed (aio_req grp)
402{ 178{
403 block_sig (); 179 if (grp->sv2 && SvOK (grp->sv2))
404
405 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
406 { 180 {
407 int old_len = grp->size;
408
409 if (grp->sv2 && SvOK (grp->sv2))
410 {
411 dSP; 181 dSP;
412 182
413 ENTER; 183 ENTER;
414 SAVETMPS; 184 SAVETMPS;
415 PUSHMARK (SP); 185 PUSHMARK (SP);
416 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 186 XPUSHs (req_sv (grp, AIO_GRP_KLASS));
417 PUTBACK; 187 PUTBACK;
418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 188 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
419 SPAGAIN; 189 SPAGAIN;
420 FREETMPS; 190 FREETMPS;
421 LEAVE; 191 LEAVE;
422 }
423
424 /* stop if no progress has been made */
425 if (old_len == grp->size)
426 {
427 SvREFCNT_dec (grp->sv2);
428 grp->sv2 = 0;
429 break;
430 }
431 } 192 }
432
433 unblock_sig ();
434} 193}
435 194
436static void aio_grp_dec (aio_req grp) 195static void req_submit (eio_req *req)
437{ 196{
438 --grp->size; 197 eio_submit (req);
439 198
440 /* call feeder, if applicable */ 199 if (expect_false (on_next_submit))
441 aio_grp_feed (grp);
442
443 /* finish, if done */
444 if (!grp->size && grp->int1)
445 { 200 {
446 block_sig (); 201 dSP;
202 SV *cb = sv_2mortal (on_next_submit);
447 203
448 if (!req_invoke (grp)) 204 on_next_submit = 0;
449 {
450 req_destroy (grp);
451 unblock_sig ();
452 croak (0);
453 }
454 205
455 req_destroy (grp); 206 PUSHMARK (SP);
456 unblock_sig (); 207 PUTBACK;
208 call_sv (cb, G_DISCARD | G_EVAL);
457 } 209 }
458} 210}
459 211
460static int req_invoke (aio_req req) 212static int req_invoke (eio_req *req)
461{ 213{
462 dSP; 214 dSP;
463 215
464 if (req->flags & FLAG_SV2_RO_OFF) 216 if (req->flags & FLAG_SV2_RO_OFF)
465 SvREADONLY_off (req->sv2); 217 SvREADONLY_off (req->sv2);
466 218
467 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 219 if (!EIO_CANCELLED (req) && req->callback)
468 { 220 {
469 ENTER; 221 ENTER;
470 SAVETMPS; 222 SAVETMPS;
471 PUSHMARK (SP); 223 PUSHMARK (SP);
472 EXTEND (SP, 1); 224 EXTEND (SP, 1);
473 225
474 switch (req->type) 226 switch (req->type)
475 { 227 {
476 case REQ_READDIR: 228 case EIO_READDIR:
477 { 229 {
478 SV *rv = &PL_sv_undef; 230 SV *rv = &PL_sv_undef;
479 231
480 if (req->result >= 0) 232 if (req->result >= 0)
481 { 233 {
… …
498 250
499 PUSHs (rv); 251 PUSHs (rv);
500 } 252 }
501 break; 253 break;
502 254
503 case REQ_OPEN: 255 case EIO_OPEN:
504 { 256 {
505 /* convert fd to fh */ 257 /* convert fd to fh */
506 SV *fh; 258 SV *fh = &PL_sv_undef;
507 259
508 PUSHs (sv_2mortal (newSViv (req->result))); 260 if (req->result >= 0)
509 PUTBACK; 261 {
510 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 262 GV *gv = (GV *)sv_newmortal ();
511 SPAGAIN; 263 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
264 char sym [64];
265 int symlen;
266
267 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);
268 gv_init (gv, stash, sym, symlen, 0);
512 269
513 fh = POPs; 270 symlen = snprintf (
514 PUSHMARK (SP); 271 sym,
272 sizeof (sym),
273 "%s&=%d",
274 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
275 req->result
276 );
277
278 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
279 fh = (SV *)gv;
280 }
281
515 XPUSHs (fh); 282 PUSHs (fh);
516 } 283 }
517 break; 284 break;
518 285
519 case REQ_GROUP: 286 case EIO_GROUP:
520 req->int1 = 2; /* mark group as finished */ 287 req->int1 = 2; /* mark group as finished */
521 288
522 if (req->sv1) 289 if (req->sv1)
523 { 290 {
524 int i; 291 int i;
… …
528 for (i = 0; i <= AvFILL (av); ++i) 295 for (i = 0; i <= AvFILL (av); ++i)
529 PUSHs (*av_fetch (av, i, 0)); 296 PUSHs (*av_fetch (av, i, 0));
530 } 297 }
531 break; 298 break;
532 299
533 case REQ_NOP: 300 case EIO_NOP:
534 case REQ_BUSY: 301 case EIO_BUSY:
535 break; 302 break;
536 303
537 case REQ_READLINK: 304 case EIO_READLINK:
538 if (req->result > 0) 305 if (req->result > 0)
539 { 306 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
540 SvCUR_set (req->sv2, req->result);
541 *SvEND (req->sv2) = 0;
542 PUSHs (req->sv2);
543 }
544 break; 307 break;
545 308
546 case REQ_STAT: 309 case EIO_STAT:
547 case REQ_LSTAT: 310 case EIO_LSTAT:
548 case REQ_FSTAT: 311 case EIO_FSTAT:
549 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 312 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
550 PL_laststatval = req->result; 313 PL_laststatval = req->result;
551 PL_statcache = *(Stat_t *)(req->ptr2); 314 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
552 PUSHs (sv_2mortal (newSViv (req->result))); 315 PUSHs (sv_2mortal (newSViv (req->result)));
553 break; 316 break;
554 317
555 case REQ_READ: 318 case EIO_READ:
556 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 319 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
557 *SvEND (req->sv2) = 0; 320 *SvEND (req->sv2) = 0;
558 PUSHs (sv_2mortal (newSViv (req->result))); 321 PUSHs (sv_2mortal (newSViv (req->result)));
559 break; 322 break;
560 323
324 case EIO_DUP2:
325 if (req->result > 0)
326 req->result = 0;
327 /* FALLTHROUGH */
328
561 default: 329 default:
562 PUSHs (sv_2mortal (newSViv (req->result))); 330 PUSHs (sv_2mortal (newSViv (req->result)));
563 break; 331 break;
564 } 332 }
565 333
566 errno = req->errorno; 334 errno = req->errorno;
567 335
568 PUTBACK; 336 PUTBACK;
569 call_sv (req->callback, G_VOID | G_EVAL); 337 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
570 SPAGAIN; 338 SPAGAIN;
571 339
572 FREETMPS; 340 FREETMPS;
573 LEAVE; 341 LEAVE;
342
343 PUTBACK;
574 } 344 }
575 345
576 if (req->grp)
577 {
578 aio_req grp = req->grp;
579
580 /* unlink request */
581 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
582 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
583
584 if (grp->grp_first == req)
585 grp->grp_first = req->grp_next;
586
587 aio_grp_dec (grp);
588 }
589
590 return !SvTRUE (ERRSV); 346 return !!SvTRUE (ERRSV);
591} 347}
592 348
593static void req_destroy (aio_req req) 349static void req_destroy (aio_req req)
594{ 350{
595 if (req->self) 351 if (req->self)
… …
600 356
601 SvREFCNT_dec (req->sv1); 357 SvREFCNT_dec (req->sv1);
602 SvREFCNT_dec (req->sv2); 358 SvREFCNT_dec (req->sv2);
603 SvREFCNT_dec (req->callback); 359 SvREFCNT_dec (req->callback);
604 360
605 if (req->flags & FLAG_PTR2_FREE)
606 free (req->ptr2);
607
608 Safefree (req); 361 Safefree (req);
609} 362}
610 363
611static void req_cancel_subs (aio_req grp) 364static void req_cancel_subs (aio_req grp)
612{ 365{
613 aio_req sub; 366 aio_req sub;
614 367
615 if (grp->type != REQ_GROUP) 368 if (grp->type != EIO_GROUP)
616 return; 369 return;
617 370
618 SvREFCNT_dec (grp->sv2); 371 SvREFCNT_dec (grp->sv2);
619 grp->sv2 = 0; 372 grp->sv2 = 0;
620 373
621 for (sub = grp->grp_first; sub; sub = sub->grp_next) 374 eio_grp_cancel (grp);
622 req_cancel (sub);
623}
624
625static void req_cancel (aio_req req)
626{
627 req->flags |= FLAG_CANCELLED;
628
629 req_cancel_subs (req);
630} 375}
631 376
632#ifdef USE_SOCKETS_AS_HANDLES 377#ifdef USE_SOCKETS_AS_HANDLES
633# define TO_SOCKET(x) (win32_get_osfhandle (x)) 378# define TO_SOCKET(x) (win32_get_osfhandle (x))
634#else 379#else
635# define TO_SOCKET(x) (x) 380# define TO_SOCKET(x) (x)
636#endif 381#endif
637 382
638static void 383static void
639create_pipe (int fd[2]) 384create_respipe (void)
640{ 385{
386 int old_readfd = respipe [0];
387
388 if (respipe [1] >= 0)
389 respipe_close (TO_SOCKET (respipe [1]));
390
391#ifdef _WIN32
392 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
393#else
394 if (pipe (respipe))
395#endif
396 croak ("unable to initialize result pipe");
397
398 if (old_readfd >= 0)
399 {
400 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
401 croak ("unable to initialize result pipe(2)");
402
403 respipe_close (respipe [0]);
404 respipe [0] = old_readfd;
405 }
406
641#ifdef _WIN32 407#ifdef _WIN32
642 int arg = 1; 408 int arg = 1;
643 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, fd)
644 || ioctlsocket (TO_SOCKET (fd [0]), FIONBIO, &arg) 409 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
645 || ioctlsocket (TO_SOCKET (fd [1]), FIONBIO, &arg)) 410 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
646#else 411#else
647 if (pipe (fd)
648 || fcntl (fd [0], F_SETFL, O_NONBLOCK) 412 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
649 || fcntl (fd [1], F_SETFL, O_NONBLOCK)) 413 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
650#endif 414#endif
651 croak ("unable to initialize result pipe"); 415 croak ("unable to initialize result pipe(3)");
652 416
653 respipe_osf [0] = TO_SOCKET (respipe [0]); 417 respipe_osf [0] = TO_SOCKET (respipe [0]);
654 respipe_osf [1] = TO_SOCKET (respipe [1]); 418 respipe_osf [1] = TO_SOCKET (respipe [1]);
655} 419}
656 420
657X_THREAD_PROC (aio_proc);
658
659static void start_thread (void)
660{
661 worker *wrk = calloc (1, sizeof (worker));
662
663 if (!wrk)
664 croak ("unable to allocate worker thread data");
665
666 X_LOCK (wrklock);
667
668 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
669 {
670 wrk->prev = &wrk_first;
671 wrk->next = wrk_first.next;
672 wrk_first.next->prev = wrk;
673 wrk_first.next = wrk;
674 ++started;
675 }
676 else
677 free (wrk);
678
679 X_UNLOCK (wrklock);
680}
681
682static void maybe_start_thread ()
683{
684 if (get_nthreads () >= wanted)
685 return;
686
687 /* todo: maybe use idle here, but might be less exact */
688 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
689 return;
690
691 start_thread ();
692}
693
694static void req_send (aio_req req)
695{
696 block_sig ();
697
698 ++nreqs;
699
700 X_LOCK (reqlock);
701 ++nready;
702 reqq_push (&req_queue, req);
703 X_COND_SIGNAL (reqwait);
704 X_UNLOCK (reqlock);
705
706 unblock_sig ();
707
708 maybe_start_thread ();
709}
710
711static void end_thread (void)
712{
713 aio_req req;
714
715 Newz (0, req, 1, aio_cb);
716
717 req->type = REQ_QUIT;
718 req->pri = PRI_MAX + PRI_BIAS;
719
720 X_LOCK (reqlock);
721 reqq_push (&req_queue, req);
722 X_COND_SIGNAL (reqwait);
723 X_UNLOCK (reqlock);
724
725 X_LOCK (wrklock);
726 --started;
727 X_UNLOCK (wrklock);
728}
729
730static void set_max_idle (int nthreads)
731{
732 if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
733 max_idle = nthreads <= 0 ? 1 : nthreads;
734 if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
735}
736
737static void min_parallel (int nthreads)
738{
739 if (wanted < nthreads)
740 wanted = nthreads;
741}
742
743static void max_parallel (int nthreads)
744{
745 if (wanted > nthreads)
746 wanted = nthreads;
747
748 while (started > wanted)
749 end_thread ();
750}
751
752static void poll_wait () 421static void poll_wait (void)
753{ 422{
754 fd_set rfd; 423 fd_set rfd;
755 424
756 while (nreqs) 425 while (eio_nreqs ())
757 { 426 {
758 int size; 427 int size;
759 if (WORDACCESS_UNSAFE) X_LOCK (reslock); 428
429 X_LOCK (reslock);
760 size = res_queue.size; 430 size = res_queue.size;
761 if (WORDACCESS_UNSAFE) X_UNLOCK (reslock); 431 X_UNLOCK (reslock);
762 432
763 if (size) 433 if (size)
764 return; 434 return;
765 435
766 maybe_start_thread (); 436 etp_maybe_start_thread ();
767 437
768 FD_ZERO (&rfd); 438 FD_ZERO (&rfd);
769 FD_SET (respipe [0], &rfd); 439 FD_SET (respipe [0], &rfd);
770 440
771 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0); 441 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
772 } 442 }
773} 443}
774 444
775static int poll_cb () 445static int poll_cb (void)
776{ 446{
777 dSP;
778 int count = 0;
779 int maxreqs = max_poll_reqs;
780 int do_croak = 0;
781 struct timeval tv_start, tv_now;
782 aio_req req;
783
784 if (max_poll_time)
785 gettimeofday (&tv_start, 0);
786
787 block_sig ();
788
789 for (;;) 447 for (;;)
790 { 448 {
791 for (;;) 449 int res = eio_poll ();
792 {
793 maybe_start_thread ();
794 450
795 X_LOCK (reslock); 451 if (res > 0)
796 req = reqq_shift (&res_queue);
797
798 if (req)
799 {
800 --npending;
801
802 if (!res_queue.size)
803 {
804 /* read any signals sent by the worker threads */
805 char buf [4];
806 while (PerlSock_recv (respipe [0], buf, 4, 0) == 4)
807 ;
808 }
809 }
810
811 X_UNLOCK (reslock);
812
813 if (!req)
814 break;
815
816 --nreqs;
817
818 if (req->type == REQ_GROUP && req->size)
819 {
820 req->int1 = 1; /* mark request as delayed */
821 continue;
822 }
823 else
824 {
825 if (!req_invoke (req))
826 {
827 req_destroy (req);
828 unblock_sig ();
829 croak (0); 452 croak (0);
830 }
831 453
832 count++; 454 if (!max_outstanding || max_outstanding > eio_nreqs ())
833 } 455 return res;
834
835 req_destroy (req);
836
837 if (maxreqs && !--maxreqs)
838 break;
839
840 if (max_poll_time)
841 {
842 gettimeofday (&tv_now, 0);
843
844 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
845 break;
846 }
847 }
848
849 if (nreqs <= max_outstanding)
850 break;
851 456
852 poll_wait (); 457 poll_wait ();
853
854 ++maxreqs;
855 } 458 }
856
857 unblock_sig ();
858 return count;
859} 459}
860 460
861/*****************************************************************************/ 461static void atfork_child (void)
862/* work around various missing functions */
863
864#if !HAVE_PREADWRITE
865# define pread aio_pread
866# define pwrite aio_pwrite
867
868/*
869 * make our pread/pwrite safe against themselves, but not against
870 * normal read/write by using a mutex. slows down execution a lot,
871 * but that's your problem, not mine.
872 */
873static mutex_t preadwritelock = X_MUTEX_INIT;
874
875static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
876{ 462{
877 ssize_t res; 463 create_respipe ();
878 off_t ooffset;
879
880 X_LOCK (preadwritelock);
881 ooffset = lseek (fd, 0, SEEK_CUR);
882 lseek (fd, offset, SEEK_SET);
883 res = read (fd, buf, count);
884 lseek (fd, ooffset, SEEK_SET);
885 X_UNLOCK (preadwritelock);
886
887 return res;
888} 464}
889 465
890static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 466static SV *
467get_cb (SV *cb_sv)
891{ 468{
892 ssize_t res; 469 HV *st;
893 off_t ooffset; 470 GV *gvp;
471 CV *cv;
894 472
895 X_LOCK (preadwritelock); 473 if (!SvOK (cb_sv))
896 ooffset = lseek (fd, 0, SEEK_CUR);
897 lseek (fd, offset, SEEK_SET);
898 res = write (fd, buf, count);
899 lseek (fd, offset, SEEK_SET);
900 X_UNLOCK (preadwritelock);
901
902 return res;
903}
904#endif
905
906#ifndef HAVE_FUTIMES
907
908# define utimes(path,times) aio_utimes (path, times)
909# define futimes(fd,times) aio_futimes (fd, times)
910
911int aio_utimes (const char *filename, const struct timeval times[2])
912{
913 if (times)
914 {
915 struct utimbuf buf;
916
917 buf.actime = times[0].tv_sec;
918 buf.modtime = times[1].tv_sec;
919
920 return utime (filename, &buf);
921 }
922 else
923 return utime (filename, 0);
924}
925
926int aio_futimes (int fd, const struct timeval tv[2])
927{
928 errno = ENOSYS;
929 return -1;
930}
931
932#endif
933
934#if !HAVE_FDATASYNC
935# define fdatasync fsync
936#endif
937
938#if !HAVE_READAHEAD
939# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
940
941static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
942{
943 size_t todo = count;
944 dBUF;
945
946 while (todo > 0)
947 {
948 size_t len = todo < AIO_BUFSIZE ? todo : AIO_BUFSIZE;
949
950 pread (fd, aio_buf, len, offset);
951 offset += len;
952 todo -= len;
953 }
954
955 errno = 0;
956 return count;
957}
958
959#endif
960
961#if !HAVE_READDIR_R
962# define readdir_r aio_readdir_r
963
964static mutex_t readdirlock = X_MUTEX_INIT;
965
966static int readdir_r (DIR *dirp, X_DIRENT *ent, X_DIRENT **res)
967{
968 X_DIRENT *e;
969 int errorno;
970
971 X_LOCK (readdirlock);
972
973 e = readdir (dirp);
974 errorno = errno;
975
976 if (e)
977 {
978 *res = ent;
979 strcpy (ent->d_name, e->d_name);
980 }
981 else
982 *res = 0;
983
984 X_UNLOCK (readdirlock);
985
986 errno = errorno;
987 return e ? 0 : -1;
988}
989#endif
990
991/* sendfile always needs emulation */
992static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
993{
994 ssize_t res;
995
996 if (!count)
997 return 0; 474 return 0;
998 475
999#if HAVE_SENDFILE 476 cv = sv_2cv (cb_sv, &st, &gvp, 0);
1000# if __linux
1001 res = sendfile (ofd, ifd, &offset, count);
1002 477
1003# elif __freebsd 478 if (!cv)
1004 /* 479 croak ("IO::AIO callback must be undef or a CODE reference");
1005 * Of course, the freebsd sendfile is a dire hack with no thoughts
1006 * wasted on making it similar to other I/O functions.
1007 */
1008 {
1009 off_t sbytes;
1010 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
1011 480
1012 if (res < 0 && sbytes) 481 return (SV *)cv;
1013 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
1014 res = sbytes;
1015 }
1016
1017# elif __hpux
1018 res = sendfile (ofd, ifd, offset, count, 0, 0);
1019
1020# elif __solaris
1021 {
1022 struct sendfilevec vec;
1023 size_t sbytes;
1024
1025 vec.sfv_fd = ifd;
1026 vec.sfv_flag = 0;
1027 vec.sfv_off = offset;
1028 vec.sfv_len = count;
1029
1030 res = sendfilev (ofd, &vec, 1, &sbytes);
1031
1032 if (res < 0 && sbytes)
1033 res = sbytes;
1034 }
1035
1036# endif
1037#else
1038 res = -1;
1039 errno = ENOSYS;
1040#endif
1041
1042 if (res < 0
1043 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
1044#if __solaris
1045 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
1046#endif
1047 )
1048 )
1049 {
1050 /* emulate sendfile. this is a major pain in the ass */
1051 dBUF;
1052
1053 res = 0;
1054
1055 while (count)
1056 {
1057 ssize_t cnt;
1058
1059 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
1060
1061 if (cnt <= 0)
1062 {
1063 if (cnt && !res) res = -1;
1064 break;
1065 }
1066
1067 cnt = write (ofd, aio_buf, cnt);
1068
1069 if (cnt <= 0)
1070 {
1071 if (cnt && !res) res = -1;
1072 break;
1073 }
1074
1075 offset += cnt;
1076 res += cnt;
1077 count -= cnt;
1078 }
1079 }
1080
1081 return res;
1082}
1083
1084/* read a full directory */
1085static void scandir_ (aio_req req, worker *self)
1086{
1087 DIR *dirp;
1088 union
1089 {
1090 X_DIRENT d;
1091 char b [offsetof (X_DIRENT, d_name) + NAME_MAX + 1];
1092 } *u;
1093 X_DIRENT *entp;
1094 char *name, *names;
1095 int memlen = 4096;
1096 int memofs = 0;
1097 int res = 0;
1098
1099 X_LOCK (wrklock);
1100 self->dirp = dirp = opendir (req->ptr1);
1101 self->dbuf = u = malloc (sizeof (*u));
1102 req->flags |= FLAG_PTR2_FREE;
1103 req->ptr2 = names = malloc (memlen);
1104 X_UNLOCK (wrklock);
1105
1106 if (dirp && u && names)
1107 for (;;)
1108 {
1109 errno = 0;
1110 readdir_r (dirp, &u->d, &entp);
1111
1112 if (!entp)
1113 break;
1114
1115 name = entp->d_name;
1116
1117 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1118 {
1119 int len = strlen (name) + 1;
1120
1121 res++;
1122
1123 while (memofs + len > memlen)
1124 {
1125 memlen *= 2;
1126 X_LOCK (wrklock);
1127 req->ptr2 = names = realloc (names, memlen);
1128 X_UNLOCK (wrklock);
1129
1130 if (!names)
1131 break;
1132 }
1133
1134 memcpy (names + memofs, name, len);
1135 memofs += len;
1136 }
1137 }
1138
1139 if (errno)
1140 res = -1;
1141
1142 req->result = res;
1143}
1144
1145/*****************************************************************************/
1146
1147X_THREAD_PROC (aio_proc)
1148{
1149 {//D
1150 aio_req req;
1151 struct timespec ts;
1152 worker *self = (worker *)thr_arg;
1153
1154 /* try to distribute timeouts somewhat randomly */
1155 ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
1156
1157 for (;;)
1158 {
1159 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1160
1161 X_LOCK (reqlock);
1162
1163 for (;;)
1164 {
1165 self->req = req = reqq_shift (&req_queue);
1166
1167 if (req)
1168 break;
1169
1170 ++idle;
1171
1172 if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
1173 == ETIMEDOUT)
1174 {
1175 if (idle > max_idle)
1176 {
1177 --idle;
1178 X_UNLOCK (reqlock);
1179 X_LOCK (wrklock);
1180 --started;
1181 X_UNLOCK (wrklock);
1182 goto quit;
1183 }
1184
1185 /* we are allowed to idle, so do so without any timeout */
1186 X_COND_WAIT (reqwait, reqlock);
1187 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1188 }
1189
1190 --idle;
1191 }
1192
1193 --nready;
1194
1195 X_UNLOCK (reqlock);
1196
1197 errno = 0; /* strictly unnecessary */
1198
1199 if (!(req->flags & FLAG_CANCELLED))
1200 switch (req->type)
1201 {
1202 case REQ_READ: req->result = req->offs >= 0
1203 ? pread (req->int1, req->ptr1, req->size, req->offs)
1204 : read (req->int1, req->ptr1, req->size); break;
1205 case REQ_WRITE: req->result = req->offs >= 0
1206 ? pwrite (req->int1, req->ptr1, req->size, req->offs)
1207 : write (req->int1, req->ptr1, req->size); break;
1208
1209 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1210 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1211
1212 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1213 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1214 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1215
1216 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1217 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1218 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1219 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1220 case REQ_TRUNCATE: req->result = truncate (req->ptr1, req->offs); break;
1221 case REQ_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break;
1222
1223 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1224 case REQ_CLOSE: req->result = close (req->int1); break;
1225 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1226 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1227 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1228 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1229 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1230 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1231 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1232 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1233
1234 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1235 case REQ_FSYNC: req->result = fsync (req->int1); break;
1236 case REQ_READDIR: scandir_ (req, self); break;
1237
1238 case REQ_BUSY:
1239#ifdef _WIN32
1240 Sleep (req->nv1 * 1000.);
1241#else
1242 {
1243 struct timeval tv;
1244
1245 tv.tv_sec = req->nv1;
1246 tv.tv_usec = (req->nv1 - tv.tv_sec) * 1000000.;
1247
1248 req->result = select (0, 0, 0, 0, &tv);
1249 }
1250#endif
1251 break;
1252
1253 case REQ_UTIME:
1254 case REQ_FUTIME:
1255 {
1256 struct timeval tv[2];
1257 struct timeval *times;
1258
1259 if (req->nv1 != -1. || req->nv2 != -1.)
1260 {
1261 tv[0].tv_sec = req->nv1;
1262 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1263 tv[1].tv_sec = req->nv2;
1264 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1265
1266 times = tv;
1267 }
1268 else
1269 times = 0;
1270
1271
1272 req->result = req->type == REQ_FUTIME
1273 ? futimes (req->int1, times)
1274 : utimes (req->ptr1, times);
1275 }
1276
1277 case REQ_GROUP:
1278 case REQ_NOP:
1279 break;
1280
1281 case REQ_QUIT:
1282 goto quit;
1283
1284 default:
1285 req->result = -1;
1286 break;
1287 }
1288
1289 req->errorno = errno;
1290
1291 X_LOCK (reslock);
1292
1293 ++npending;
1294
1295 if (!reqq_push (&res_queue, req))
1296 {
1297 /* write a dummy byte to the pipe so fh becomes ready */
1298 send (respipe_osf [1], (const void *)&respipe_osf, 1, 0);
1299
1300 /* optionally signal the main thread asynchronously */
1301 if (main_sig)
1302 pthread_kill (main_tid, main_sig);
1303 }
1304
1305 self->req = 0;
1306 worker_clear (self);
1307
1308 X_UNLOCK (reslock);
1309 }
1310
1311quit:
1312 X_LOCK (wrklock);
1313 worker_free (self);
1314 X_UNLOCK (wrklock);
1315
1316 return 0;
1317 }//D
1318}
1319
1320/*****************************************************************************/
1321
1322static void atfork_prepare (void)
1323{
1324 X_LOCK (wrklock);
1325 X_LOCK (reqlock);
1326 X_LOCK (reslock);
1327#if !HAVE_PREADWRITE
1328 X_LOCK (preadwritelock);
1329#endif
1330#if !HAVE_READDIR_R
1331 X_LOCK (readdirlock);
1332#endif
1333}
1334
1335static void atfork_parent (void)
1336{
1337#if !HAVE_READDIR_R
1338 X_UNLOCK (readdirlock);
1339#endif
1340#if !HAVE_PREADWRITE
1341 X_UNLOCK (preadwritelock);
1342#endif
1343 X_UNLOCK (reslock);
1344 X_UNLOCK (reqlock);
1345 X_UNLOCK (wrklock);
1346}
1347
1348static void atfork_child (void)
1349{
1350 aio_req prv;
1351
1352 while (prv = reqq_shift (&req_queue))
1353 req_destroy (prv);
1354
1355 while (prv = reqq_shift (&res_queue))
1356 req_destroy (prv);
1357
1358 while (wrk_first.next != &wrk_first)
1359 {
1360 worker *wrk = wrk_first.next;
1361
1362 if (wrk->req)
1363 req_destroy (wrk->req);
1364
1365 worker_clear (wrk);
1366 worker_free (wrk);
1367 }
1368
1369 started = 0;
1370 idle = 0;
1371 nreqs = 0;
1372 nready = 0;
1373 npending = 0;
1374
1375 PerlSock_closesocket (respipe [0]);
1376 PerlSock_closesocket (respipe [1]);
1377
1378 create_pipe (respipe);
1379
1380 atfork_parent ();
1381} 482}
1382 483
1383#define dREQ \ 484#define dREQ \
485 SV *cb_cv; \
1384 aio_req req; \ 486 aio_req req; \
1385 int req_pri = next_pri; \ 487 int req_pri = next_pri; \
1386 next_pri = DEFAULT_PRI + PRI_BIAS; \ 488 next_pri = EIO_PRI_DEFAULT; \
1387 \ 489 \
1388 if (SvOK (callback) && !SvROK (callback)) \ 490 cb_cv = get_cb (callback); \
1389 croak ("callback must be undef or of reference type"); \
1390 \ 491 \
1391 Newz (0, req, 1, aio_cb); \ 492 Newz (0, req, 1, eio_req); \
1392 if (!req) \ 493 if (!req) \
1393 croak ("out of memory during aio_req allocation"); \ 494 croak ("out of memory during eio_req allocation"); \
1394 \ 495 \
1395 req->callback = newSVsv (callback); \ 496 req->callback = SvREFCNT_inc (cb_cv); \
1396 req->pri = req_pri 497 req->pri = req_pri
1397 498
1398#define REQ_SEND \ 499#define REQ_SEND \
500 PUTBACK; \
1399 req_send (req); \ 501 req_submit (req); \
502 SPAGAIN; \
1400 \ 503 \
1401 if (GIMME_V != G_VOID) \ 504 if (GIMME_V != G_VOID) \
1402 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 505 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1403 506
1404MODULE = IO::AIO PACKAGE = IO::AIO 507MODULE = IO::AIO PACKAGE = IO::AIO
1405 508
1406PROTOTYPES: ENABLE 509PROTOTYPES: ENABLE
1407 510
1408BOOT: 511BOOT:
1409{ 512{
1410 HV *stash = gv_stashpv ("IO::AIO", 1); 513 stash = gv_stashpv ("IO::AIO", 1);
1411 514
1412 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 515 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1413 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 516 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1414 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 517 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1415 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); 518 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1416 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); 519 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1417#ifdef _WIN32 520#ifndef _WIN32
1418 X_MUTEX_CHECK (wrklock);
1419 X_MUTEX_CHECK (reslock);
1420 X_MUTEX_CHECK (reqlock);
1421 X_MUTEX_CHECK (reqwait);
1422 X_MUTEX_CHECK (preadwritelock);
1423 X_MUTEX_CHECK (readdirlock);
1424
1425 X_COND_CHECK (reqwait);
1426#else
1427 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); 521 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1428 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1429#endif 522#endif
1430 523
1431 create_pipe (respipe); 524 create_respipe ();
1432 525
1433 X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child); 526 if (eio_init (want_poll, done_poll) < 0)
527 croak ("IO::AIO: unable to initialise eio library");
528
529 /* atfork child called in fifo order, so before eio's handler */
530 X_THREAD_ATFORK (0, 0, atfork_child);
1434} 531}
1435 532
1436void 533void
1437max_poll_reqs (int nreqs) 534max_poll_reqs (int nreqs)
1438 PROTOTYPE: $ 535 PROTOTYPE: $
1439 CODE: 536 CODE:
1440 max_poll_reqs = nreqs; 537 eio_set_max_poll_reqs (nreqs);
1441 538
1442void 539void
1443max_poll_time (double nseconds) 540max_poll_time (double nseconds)
1444 PROTOTYPE: $ 541 PROTOTYPE: $
1445 CODE: 542 CODE:
1446 max_poll_time = nseconds * AIO_TICKS; 543 eio_set_max_poll_time (nseconds);
1447 544
1448void 545void
1449min_parallel (int nthreads) 546min_parallel (int nthreads)
1450 PROTOTYPE: $ 547 PROTOTYPE: $
548 CODE:
549 eio_set_min_parallel (nthreads);
1451 550
1452void 551void
1453max_parallel (int nthreads) 552max_parallel (int nthreads)
1454 PROTOTYPE: $ 553 PROTOTYPE: $
554 CODE:
555 eio_set_max_parallel (nthreads);
1455 556
1456void 557void
1457max_idle (int nthreads) 558max_idle (int nthreads)
1458 PROTOTYPE: $ 559 PROTOTYPE: $
1459 CODE: 560 CODE:
1460 set_max_idle (nthreads); 561 eio_set_max_idle (nthreads);
1461 562
1462int 563void
1463max_outstanding (int maxreqs) 564max_outstanding (int maxreqs)
1464 PROTOTYPE: $ 565 PROTOTYPE: $
1465 CODE: 566 CODE:
1466 RETVAL = max_outstanding;
1467 max_outstanding = maxreqs; 567 max_outstanding = maxreqs;
1468 OUTPUT:
1469 RETVAL
1470 568
1471void 569void
1472aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 570aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1473 PROTOTYPE: $$$;$ 571 PROTOTYPE: $$$;$
1474 PPCODE: 572 PPCODE:
1475{ 573{
1476 dREQ; 574 dREQ;
1477 575
1478 req->type = REQ_OPEN; 576 req->type = EIO_OPEN;
1479 req->sv1 = newSVsv (pathname); 577 req->sv1 = newSVsv (pathname);
1480 req->ptr1 = SvPVbyte_nolen (req->sv1); 578 req->ptr1 = SvPVbyte_nolen (req->sv1);
1481 req->int1 = flags; 579 req->int1 = flags;
1482 req->mode = mode; 580 req->int2 = mode;
1483 581
1484 REQ_SEND; 582 REQ_SEND;
1485} 583}
1486 584
1487void 585void
1488aio_close (SV *fh, SV *callback=&PL_sv_undef) 586aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1489 PROTOTYPE: $;$ 587 PROTOTYPE: $;$
1490 ALIAS: 588 ALIAS:
1491 aio_close = REQ_CLOSE
1492 aio_fsync = REQ_FSYNC 589 aio_fsync = EIO_FSYNC
1493 aio_fdatasync = REQ_FDATASYNC 590 aio_fdatasync = EIO_FDATASYNC
1494 PPCODE: 591 PPCODE:
1495{ 592{
1496 dREQ; 593 dREQ;
1497 594
1498 req->type = ix; 595 req->type = ix;
… …
1501 598
1502 REQ_SEND (req); 599 REQ_SEND (req);
1503} 600}
1504 601
1505void 602void
603aio_close (SV *fh, SV *callback=&PL_sv_undef)
604 PROTOTYPE: $;$
605 PPCODE:
606{
607 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
608 dREQ;
609
610 if (close_pipe < 0)
611 {
612 int pipefd [2];
613
614 if (pipe (pipefd) < 0
615 || close (pipefd [1]) < 0
616 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
617 abort (); /*D*/
618
619 close_pipe = pipefd [0];
620 }
621
622 req->type = EIO_DUP2;
623 req->int1 = close_pipe;
624 req->sv2 = newSVsv (fh);
625 req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));
626
627 REQ_SEND (req);
628}
629
630void
1506aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) 631aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1507 ALIAS: 632 ALIAS:
1508 aio_read = REQ_READ 633 aio_read = EIO_READ
1509 aio_write = REQ_WRITE 634 aio_write = EIO_WRITE
1510 PROTOTYPE: $$$$$;$ 635 PROTOTYPE: $$$$$;$
1511 PPCODE: 636 PPCODE:
1512{ 637{
1513 STRLEN svlen; 638 STRLEN svlen;
1514 char *svptr = SvPVbyte (data, svlen); 639 char *svptr = SvPVbyte (data, svlen);
… …
1521 dataoffset += svlen; 646 dataoffset += svlen;
1522 647
1523 if (dataoffset < 0 || dataoffset > svlen) 648 if (dataoffset < 0 || dataoffset > svlen)
1524 croak ("dataoffset outside of data scalar"); 649 croak ("dataoffset outside of data scalar");
1525 650
1526 if (ix == REQ_WRITE) 651 if (ix == EIO_WRITE)
1527 { 652 {
1528 /* write: check length and adjust. */ 653 /* write: check length and adjust. */
1529 if (!SvOK (length) || len + dataoffset > svlen) 654 if (!SvOK (length) || len + dataoffset > svlen)
1530 len = svlen - dataoffset; 655 len = svlen - dataoffset;
1531 } 656 }
… …
1541 { 666 {
1542 dREQ; 667 dREQ;
1543 668
1544 req->type = ix; 669 req->type = ix;
1545 req->sv1 = newSVsv (fh); 670 req->sv1 = newSVsv (fh);
1546 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 671 req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))
1547 : IoOFP (sv_2io (fh))); 672 : IoOFP (sv_2io (fh)));
1548 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 673 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1549 req->size = len; 674 req->size = len;
1550 req->sv2 = SvREFCNT_inc (data); 675 req->sv2 = SvREFCNT_inc_NN (data);
1551 req->ptr1 = (char *)svptr + dataoffset; 676 req->ptr2 = (char *)svptr + dataoffset;
1552 req->stroffset = dataoffset; 677 req->stroffset = dataoffset;
1553 678
1554 if (!SvREADONLY (data)) 679 if (!SvREADONLY (data))
1555 { 680 {
1556 SvREADONLY_on (data); 681 SvREADONLY_on (data);
… …
1567 PPCODE: 692 PPCODE:
1568{ 693{
1569 SV *data; 694 SV *data;
1570 dREQ; 695 dREQ;
1571 696
1572 data = newSV (NAME_MAX);
1573 SvPOK_on (data);
1574
1575 req->type = REQ_READLINK; 697 req->type = EIO_READLINK;
1576 req->sv1 = newSVsv (path); 698 req->sv1 = newSVsv (path);
1577 req->ptr2 = SvPVbyte_nolen (req->sv1); 699 req->ptr1 = SvPVbyte_nolen (req->sv1);
1578 req->sv2 = data;
1579 req->ptr1 = SvPVbyte_nolen (data);
1580 700
1581 REQ_SEND; 701 REQ_SEND;
1582} 702}
1583 703
1584void 704void
… …
1586 PROTOTYPE: $$$$;$ 706 PROTOTYPE: $$$$;$
1587 PPCODE: 707 PPCODE:
1588{ 708{
1589 dREQ; 709 dREQ;
1590 710
1591 req->type = REQ_SENDFILE; 711 req->type = EIO_SENDFILE;
1592 req->sv1 = newSVsv (out_fh); 712 req->sv1 = newSVsv (out_fh);
1593 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 713 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1594 req->sv2 = newSVsv (in_fh); 714 req->sv2 = newSVsv (in_fh);
1595 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 715 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1596 req->offs = SvVAL64 (in_offset); 716 req->offs = SvVAL64 (in_offset);
… …
1604 PROTOTYPE: $$$;$ 724 PROTOTYPE: $$$;$
1605 PPCODE: 725 PPCODE:
1606{ 726{
1607 dREQ; 727 dREQ;
1608 728
1609 req->type = REQ_READAHEAD; 729 req->type = EIO_READAHEAD;
1610 req->sv1 = newSVsv (fh); 730 req->sv1 = newSVsv (fh);
1611 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 731 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1612 req->offs = SvVAL64 (offset); 732 req->offs = SvVAL64 (offset);
1613 req->size = length; 733 req->size = length;
1614 734
… …
1616} 736}
1617 737
1618void 738void
1619aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 739aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1620 ALIAS: 740 ALIAS:
1621 aio_stat = REQ_STAT 741 aio_stat = EIO_STAT
1622 aio_lstat = REQ_LSTAT 742 aio_lstat = EIO_LSTAT
1623 PPCODE: 743 PPCODE:
1624{ 744{
1625 dREQ; 745 dREQ;
1626 746
1627 req->ptr2 = malloc (sizeof (Stat_t));
1628 if (!req->ptr2)
1629 {
1630 req_destroy (req);
1631 croak ("out of memory during aio_stat statdata allocation");
1632 }
1633
1634 req->flags |= FLAG_PTR2_FREE;
1635 req->sv1 = newSVsv (fh_or_path); 747 req->sv1 = newSVsv (fh_or_path);
1636 748
1637 if (SvPOK (fh_or_path)) 749 if (SvPOK (req->sv1))
1638 { 750 {
1639 req->type = ix; 751 req->type = ix;
1640 req->ptr1 = SvPVbyte_nolen (req->sv1); 752 req->ptr1 = SvPVbyte_nolen (req->sv1);
1641 } 753 }
1642 else 754 else
1643 { 755 {
1644 req->type = REQ_FSTAT; 756 req->type = EIO_FSTAT;
1645 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 757 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1646 } 758 }
1647 759
1648 REQ_SEND; 760 REQ_SEND;
1649} 761}
… …
1656 768
1657 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 769 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1658 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 770 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1659 req->sv1 = newSVsv (fh_or_path); 771 req->sv1 = newSVsv (fh_or_path);
1660 772
1661 if (SvPOK (fh_or_path)) 773 if (SvPOK (req->sv1))
1662 { 774 {
1663 req->type = REQ_UTIME; 775 req->type = EIO_UTIME;
1664 req->ptr1 = SvPVbyte_nolen (req->sv1); 776 req->ptr1 = SvPVbyte_nolen (req->sv1);
1665 } 777 }
1666 else 778 else
1667 { 779 {
1668 req->type = REQ_FUTIME; 780 req->type = EIO_FUTIME;
1669 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 781 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1670 } 782 }
1671 783
1672 REQ_SEND; 784 REQ_SEND;
1673} 785}
… …
1679 dREQ; 791 dREQ;
1680 792
1681 req->sv1 = newSVsv (fh_or_path); 793 req->sv1 = newSVsv (fh_or_path);
1682 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; 794 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1683 795
1684 if (SvPOK (fh_or_path)) 796 if (SvPOK (req->sv1))
1685 { 797 {
1686 req->type = REQ_TRUNCATE; 798 req->type = EIO_TRUNCATE;
1687 req->ptr1 = SvPVbyte_nolen (req->sv1); 799 req->ptr1 = SvPVbyte_nolen (req->sv1);
1688 } 800 }
1689 else 801 else
1690 { 802 {
1691 req->type = REQ_FTRUNCATE; 803 req->type = EIO_FTRUNCATE;
1692 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 804 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1693 } 805 }
1694 806
1695 REQ_SEND; 807 REQ_SEND;
1696} 808}
1697 809
1698void 810void
1699aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 811aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
812 ALIAS:
813 aio_chmod = EIO_CHMOD
814 aio_mkdir = EIO_MKDIR
1700 PPCODE: 815 PPCODE:
1701{ 816{
1702 dREQ; 817 dREQ;
1703 818
1704 req->mode = mode; 819 req->int2 = mode;
1705 req->sv1 = newSVsv (fh_or_path); 820 req->sv1 = newSVsv (fh_or_path);
1706 821
1707 if (SvPOK (fh_or_path)) 822 if (SvPOK (req->sv1))
1708 { 823 {
1709 req->type = REQ_CHMOD; 824 req->type = ix;
1710 req->ptr1 = SvPVbyte_nolen (req->sv1); 825 req->ptr1 = SvPVbyte_nolen (req->sv1);
1711 } 826 }
1712 else 827 else
1713 { 828 {
1714 req->type = REQ_FCHMOD; 829 req->type = EIO_FCHMOD;
1715 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 830 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1716 } 831 }
1717 832
1718 REQ_SEND; 833 REQ_SEND;
1719} 834}
… …
1726 841
1727 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 842 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1728 req->int3 = SvOK (gid) ? SvIV (gid) : -1; 843 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1729 req->sv1 = newSVsv (fh_or_path); 844 req->sv1 = newSVsv (fh_or_path);
1730 845
1731 if (SvPOK (fh_or_path)) 846 if (SvPOK (req->sv1))
1732 { 847 {
1733 req->type = REQ_CHOWN; 848 req->type = EIO_CHOWN;
1734 req->ptr1 = SvPVbyte_nolen (req->sv1); 849 req->ptr1 = SvPVbyte_nolen (req->sv1);
1735 } 850 }
1736 else 851 else
1737 { 852 {
1738 req->type = REQ_FCHOWN; 853 req->type = EIO_FCHOWN;
1739 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 854 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1740 } 855 }
1741 856
1742 REQ_SEND; 857 REQ_SEND;
1743} 858}
1744 859
1745void 860void
1746aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 861aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1747 ALIAS: 862 ALIAS:
1748 aio_unlink = REQ_UNLINK 863 aio_unlink = EIO_UNLINK
1749 aio_rmdir = REQ_RMDIR 864 aio_rmdir = EIO_RMDIR
1750 aio_readdir = REQ_READDIR 865 aio_readdir = EIO_READDIR
1751 PPCODE: 866 PPCODE:
1752{ 867{
1753 dREQ; 868 dREQ;
1754 869
1755 req->type = ix; 870 req->type = ix;
… …
1758 873
1759 REQ_SEND; 874 REQ_SEND;
1760} 875}
1761 876
1762void 877void
1763aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef) 878aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
879 ALIAS:
880 aio_link = EIO_LINK
881 aio_symlink = EIO_SYMLINK
882 aio_rename = EIO_RENAME
1764 PPCODE: 883 PPCODE:
1765{ 884{
1766 dREQ; 885 dREQ;
1767 886
887 req->type = ix;
888 req->sv1 = newSVsv (oldpath);
889 req->ptr1 = SvPVbyte_nolen (req->sv1);
890 req->sv2 = newSVsv (newpath);
891 req->ptr2 = SvPVbyte_nolen (req->sv2);
892
893 REQ_SEND;
894}
895
896void
897aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
898 PPCODE:
899{
900 dREQ;
901
1768 req->type = REQ_MKDIR; 902 req->type = EIO_MKNOD;
1769 req->sv1 = newSVsv (pathname); 903 req->sv1 = newSVsv (pathname);
1770 req->ptr1 = SvPVbyte_nolen (req->sv1); 904 req->ptr1 = SvPVbyte_nolen (req->sv1);
1771 req->mode = mode;
1772
1773 REQ_SEND;
1774}
1775
1776void
1777aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1778 ALIAS:
1779 aio_link = REQ_LINK
1780 aio_symlink = REQ_SYMLINK
1781 aio_rename = REQ_RENAME
1782 PPCODE:
1783{
1784 dREQ;
1785
1786 req->type = ix;
1787 req->sv2 = newSVsv (oldpath);
1788 req->ptr2 = SvPVbyte_nolen (req->sv2);
1789 req->sv1 = newSVsv (newpath);
1790 req->ptr1 = SvPVbyte_nolen (req->sv1);
1791
1792 REQ_SEND;
1793}
1794
1795void
1796aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1797 PPCODE:
1798{
1799 dREQ;
1800
1801 req->type = REQ_MKNOD;
1802 req->sv1 = newSVsv (pathname);
1803 req->ptr1 = SvPVbyte_nolen (req->sv1);
1804 req->mode = (mode_t)mode; 905 req->int2 = (mode_t)mode;
1805 req->offs = dev; 906 req->offs = dev;
1806 907
1807 REQ_SEND; 908 REQ_SEND;
1808} 909}
1809 910
… …
1811aio_busy (double delay, SV *callback=&PL_sv_undef) 912aio_busy (double delay, SV *callback=&PL_sv_undef)
1812 PPCODE: 913 PPCODE:
1813{ 914{
1814 dREQ; 915 dREQ;
1815 916
1816 req->type = REQ_BUSY; 917 req->type = EIO_BUSY;
1817 req->nv1 = delay < 0. ? 0. : delay; 918 req->nv1 = delay < 0. ? 0. : delay;
1818 919
1819 REQ_SEND; 920 REQ_SEND;
1820} 921}
1821 922
… …
1824 PROTOTYPE: ;$ 925 PROTOTYPE: ;$
1825 PPCODE: 926 PPCODE:
1826{ 927{
1827 dREQ; 928 dREQ;
1828 929
1829 req->type = REQ_GROUP; 930 req->type = EIO_GROUP;
1830 931
1831 req_send (req); 932 req_submit (req);
1832 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 933 XPUSHs (req_sv (req, AIO_GRP_KLASS));
1833} 934}
1834 935
1835void 936void
1836aio_nop (SV *callback=&PL_sv_undef) 937aio_nop (SV *callback=&PL_sv_undef)
938 ALIAS:
939 aio_nop = EIO_NOP
940 aio_sync = EIO_SYNC
1837 PPCODE: 941 PPCODE:
1838{ 942{
1839 dREQ; 943 dREQ;
1840 944
1841 req->type = REQ_NOP; 945 req->type = ix;
1842 946
1843 REQ_SEND; 947 REQ_SEND;
1844} 948}
1845 949
1846int 950int
1847aioreq_pri (int pri = 0) 951aioreq_pri (int pri = 0)
1848 PROTOTYPE: ;$ 952 PROTOTYPE: ;$
1849 CODE: 953 CODE:
1850 RETVAL = next_pri - PRI_BIAS; 954 RETVAL = next_pri;
1851 if (items > 0) 955 if (items > 0)
1852 { 956 {
1853 if (pri < PRI_MIN) pri = PRI_MIN; 957 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1854 if (pri > PRI_MAX) pri = PRI_MAX; 958 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1855 next_pri = pri + PRI_BIAS; 959 next_pri = pri;
1856 } 960 }
1857 OUTPUT: 961 OUTPUT:
1858 RETVAL 962 RETVAL
1859 963
1860void 964void
1861aioreq_nice (int nice = 0) 965aioreq_nice (int nice = 0)
1862 CODE: 966 CODE:
1863 nice = next_pri - nice; 967 nice = next_pri - nice;
1864 if (nice < PRI_MIN) nice = PRI_MIN; 968 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1865 if (nice > PRI_MAX) nice = PRI_MAX; 969 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1866 next_pri = nice + PRI_BIAS; 970 next_pri = nice;
1867 971
1868void 972void
1869flush () 973flush ()
1870 PROTOTYPE: 974 PROTOTYPE:
1871 CODE: 975 CODE:
1872 while (nreqs) 976 while (eio_nreqs ())
1873 { 977 {
1874 poll_wait (); 978 poll_wait ();
1875 poll_cb (); 979 poll_cb ();
1876 } 980 }
1877 981
… …
1904poll_wait() 1008poll_wait()
1905 PROTOTYPE: 1009 PROTOTYPE:
1906 CODE: 1010 CODE:
1907 poll_wait (); 1011 poll_wait ();
1908 1012
1909void
1910setsig (int signum = SIGIO)
1911 PROTOTYPE: ;$
1912 CODE:
1913{
1914 if (block_sig_level)
1915 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1916
1917 X_LOCK (reslock);
1918 main_tid = pthread_self ();
1919 main_sig = signum;
1920 X_UNLOCK (reslock);
1921
1922 if (main_sig && npending)
1923 pthread_kill (main_tid, main_sig);
1924}
1925
1926void
1927aio_block (SV *cb)
1928 PROTOTYPE: &
1929 PPCODE:
1930{
1931 int count;
1932
1933 block_sig ();
1934 PUSHMARK (SP);
1935 PUTBACK;
1936 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1937 SPAGAIN;
1938 unblock_sig ();
1939
1940 if (SvTRUE (ERRSV))
1941 croak (0);
1942
1943 XSRETURN (count);
1944}
1945
1946int 1013int
1947nreqs() 1014nreqs()
1948 PROTOTYPE: 1015 PROTOTYPE:
1949 CODE: 1016 CODE:
1950 RETVAL = nreqs; 1017 RETVAL = eio_nreqs ();
1951 OUTPUT: 1018 OUTPUT:
1952 RETVAL 1019 RETVAL
1953 1020
1954int 1021int
1955nready() 1022nready()
1956 PROTOTYPE: 1023 PROTOTYPE:
1957 CODE: 1024 CODE:
1958 RETVAL = get_nready (); 1025 RETVAL = eio_nready ();
1959 OUTPUT: 1026 OUTPUT:
1960 RETVAL 1027 RETVAL
1961 1028
1962int 1029int
1963npending() 1030npending()
1964 PROTOTYPE: 1031 PROTOTYPE:
1965 CODE: 1032 CODE:
1966 RETVAL = get_npending (); 1033 RETVAL = eio_npending ();
1967 OUTPUT: 1034 OUTPUT:
1968 RETVAL 1035 RETVAL
1969 1036
1970int 1037int
1971nthreads() 1038nthreads()
1972 PROTOTYPE: 1039 PROTOTYPE:
1973 CODE: 1040 CODE:
1974 if (WORDACCESS_UNSAFE) X_LOCK (wrklock); 1041 RETVAL = eio_nthreads ();
1975 RETVAL = started;
1976 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1977 OUTPUT: 1042 OUTPUT:
1978 RETVAL 1043 RETVAL
1979 1044
1045void _on_next_submit (SV *cb)
1046 CODE:
1047 SvREFCNT_dec (on_next_submit);
1048 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1049
1980PROTOTYPES: DISABLE 1050PROTOTYPES: DISABLE
1981 1051
1982MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1052MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1983 1053
1984void 1054void
1985cancel (aio_req_ornot req) 1055cancel (aio_req_ornot req)
1986 CODE: 1056 CODE:
1987 req_cancel (req); 1057 eio_cancel (req);
1988 1058
1989void 1059void
1990cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1060cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1991 CODE: 1061 PPCODE:
1062{
1063 if (GIMME_V != G_VOID)
1064 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1065
1066 if (items > 1)
1067 {
1068 SV *cb_cv = get_cb (callback);
1069
1992 SvREFCNT_dec (req->callback); 1070 SvREFCNT_dec (req->callback);
1993 req->callback = newSVsv (callback); 1071 req->callback = SvREFCNT_inc (cb_cv);
1072 }
1073}
1994 1074
1995MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1075MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1996 1076
1997void 1077void
1998add (aio_req grp, ...) 1078add (aio_req grp, ...)
1999 PPCODE: 1079 PPCODE:
2000{ 1080{
2001 int i; 1081 int i;
2002 aio_req req;
2003
2004 if (main_sig && !block_sig_level)
2005 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
2006 1082
2007 if (grp->int1 == 2) 1083 if (grp->int1 == 2)
2008 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1084 croak ("cannot add requests to IO::AIO::GRP after the group finished");
2009 1085
2010 for (i = 1; i < items; ++i ) 1086 for (i = 1; i < items; ++i )
2011 { 1087 {
1088 aio_req req;
1089
2012 if (GIMME_V != G_VOID) 1090 if (GIMME_V != G_VOID)
2013 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1091 XPUSHs (sv_2mortal (newSVsv (ST (i))));
2014 1092
2015 req = SvAIO_REQ (ST (i)); 1093 req = SvAIO_REQ (ST (i));
2016 1094
2017 if (req) 1095 if (req)
2018 { 1096 eio_grp_add (grp, req);
2019 ++grp->size;
2020 req->grp = grp;
2021
2022 req->grp_prev = 0;
2023 req->grp_next = grp->grp_first;
2024
2025 if (grp->grp_first)
2026 grp->grp_first->grp_prev = req;
2027
2028 grp->grp_first = req;
2029 }
2030 } 1097 }
2031} 1098}
2032 1099
2033void 1100void
2034cancel_subs (aio_req_ornot req) 1101cancel_subs (aio_req_ornot req)
… …
2059 grp->errorno = errorno; 1126 grp->errorno = errorno;
2060 1127
2061void 1128void
2062limit (aio_req grp, int limit) 1129limit (aio_req grp, int limit)
2063 CODE: 1130 CODE:
2064 grp->int2 = limit; 1131 eio_grp_limit (grp, limit);
2065 aio_grp_feed (grp);
2066 1132
2067void 1133void
2068feed (aio_req grp, SV *callback=&PL_sv_undef) 1134feed (aio_req grp, SV *callback=&PL_sv_undef)
2069 CODE: 1135 CODE:
2070{ 1136{
… …
2072 grp->sv2 = newSVsv (callback); 1138 grp->sv2 = newSVsv (callback);
2073 1139
2074 if (grp->int2 <= 0) 1140 if (grp->int2 <= 0)
2075 grp->int2 = 2; 1141 grp->int2 = 2;
2076 1142
2077 aio_grp_feed (grp); 1143 eio_grp_limit (grp, grp->int2);
2078} 1144}
2079 1145

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