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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.78 by root, Thu Oct 26 14:35:34 2006 UTC vs.
Revision 1.116 by root, Sat May 10 19:25:33 2008 UTC

1/* solaris */ 1#include "libeio/xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux && !defined(_GNU_SOURCE)
5# define _GNU_SOURCE
6#endif
7
8/* just in case */
9#define _REENTRANT 1
10 2
11#include <errno.h> 3#include <errno.h>
12 4
13#include "EXTERN.h" 5#include "EXTERN.h"
14#include "perl.h" 6#include "perl.h"
15#include "XSUB.h" 7#include "XSUB.h"
16 8
17#include "autoconf/config.h"
18
19#include <pthread.h>
20
21#include <stddef.h> 9#include <stddef.h>
10#include <stdlib.h>
22#include <errno.h> 11#include <errno.h>
23#include <sys/time.h>
24#include <sys/select.h>
25#include <sys/types.h> 12#include <sys/types.h>
26#include <sys/stat.h> 13#include <sys/stat.h>
27#include <limits.h> 14#include <limits.h>
28#include <unistd.h>
29#include <fcntl.h> 15#include <fcntl.h>
30#include <signal.h>
31#include <sched.h> 16#include <sched.h>
32 17
33#if HAVE_SENDFILE 18#ifdef _WIN32
34# if __linux 19
35# include <sys/sendfile.h> 20# define EIO_STRUCT_DIRENT Direntry_t
36# elif __freebsd 21# undef malloc
37# include <sys/socket.h> 22# undef free
38# include <sys/uio.h> 23
39# elif __hpux 24// perl overrides all those nice win32 functions
40# include <sys/socket.h> 25# undef open
41# elif __solaris /* not yet */ 26# undef read
42# include <sys/sendfile.h> 27# undef write
28# undef send
29# undef recv
30# undef stat
31# undef fstat
32# define lstat stat
33# undef truncate
34# undef ftruncate
35# undef open
36# undef close
37# undef unlink
38# undef rmdir
39# undef rename
40# undef lseek
41
42# define chown(a,b,c) (errno = ENOSYS, -1)
43# define fchown(a,b,c) (errno = ENOSYS, -1)
44# define fchmod(a,b) (errno = ENOSYS, -1)
45# define symlink(a,b) (errno = ENOSYS, -1)
46# define readlink(a,b,c) (errno = ENOSYS, -1)
47# define mknod(a,b,c) (errno = ENOSYS, -1)
48# define truncate(a,b) (errno = ENOSYS, -1)
49# define ftruncate(fd,o) chsize ((fd), (o))
50# define fsync(fd) _commit (fd)
51# define opendir(fd) (errno = ENOSYS, 0)
52# define readdir(fd) (errno = ENOSYS, -1)
53# define closedir(fd) (errno = ENOSYS, -1)
54# define mkdir(a,b) mkdir (a)
55
43# else 56#else
44# error sendfile support requested but not available 57
45# endif 58# include <sys/time.h>
59# include <sys/select.h>
60# include <unistd.h>
61# include <utime.h>
62# include <signal.h>
63# define EIO_STRUCT_DIRENT struct dirent
64
46#endif 65#endif
47 66
48/* used for struct dirent, AIX doesn't provide it */ 67#define EIO_STRUCT_STAT Stat_t
49#ifndef NAME_MAX 68
50# define NAME_MAX 4096 69/* use NV for 32 bit perls as it allows larger offsets */
70#if IVSIZE >= 8
71# define SvVAL64 SvIV
72#else
73# define SvVAL64 SvNV
51#endif 74#endif
52 75
53#ifndef PTHREAD_STACK_MIN 76static HV *stash;
54/* care for broken platforms, e.g. windows */ 77typedef SV SV8; /* byte-sv, used for argument-checking */
55# define PTHREAD_STACK_MIN 16384
56#endif
57
58#if __ia64
59# define STACKSIZE 65536
60#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
61# define STACKSIZE PTHREAD_STACK_MIN
62#else
63# define STACKSIZE 16384
64#endif
65
66/* buffer size for various temporary buffers */
67#define AIO_BUFSIZE 65536
68
69#define dBUF \
70 char *aio_buf; \
71 LOCK (wrklock); \
72 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
73 UNLOCK (wrklock); \
74 if (!aio_buf) \
75 return -1;
76
77enum {
78 REQ_QUIT,
79 REQ_OPEN, REQ_CLOSE,
80 REQ_READ, REQ_WRITE, REQ_READAHEAD,
81 REQ_SENDFILE,
82 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
83 REQ_FSYNC, REQ_FDATASYNC,
84 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
85 REQ_READDIR,
86 REQ_LINK, REQ_SYMLINK,
87 REQ_GROUP, REQ_NOP,
88 REQ_BUSY,
89};
90 78
91#define AIO_REQ_KLASS "IO::AIO::REQ" 79#define AIO_REQ_KLASS "IO::AIO::REQ"
92#define AIO_GRP_KLASS "IO::AIO::GRP" 80#define AIO_GRP_KLASS "IO::AIO::GRP"
93 81
94typedef struct aio_cb 82#define EIO_COMMON \
95{
96 struct aio_cb *volatile next;
97
98 SV *data, *callback; 83 SV *callback; \
99 SV *fh, *fh2; 84 SV *sv1, *sv2; \
100 void *dataptr, *data2ptr;
101 Stat_t *statdata;
102 off_t offset;
103 size_t length;
104 ssize_t result;
105
106 STRLEN dataoffset; 85 STRLEN stroffset; \
107 int type; 86 SV *self
108 int fd, fd2;
109 int errorno;
110 mode_t mode; /* open */
111 87
112 unsigned char flags; 88#include "libeio/eio.h"
113 unsigned char pri;
114 89
115 SV *self; /* the perl counterpart of this request, if any */ 90static int req_invoke (eio_req *req);
116 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 91#define EIO_FINISH(req) req_invoke (req)
117} aio_cb; 92static void aio_grp_feed (eio_req *grp);
93#define EIO_FEED(req) aio_grp_feed (req)
94static void req_destroy (eio_req *grp);
95#define EIO_DESTROY(req) req_destroy (req)
118 96
119enum { 97enum {
120 FLAG_CANCELLED = 0x01, 98 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
121}; 99};
122 100
101#include "libeio/eio.c"
102
123typedef aio_cb *aio_req; 103typedef eio_req *aio_req;
124typedef aio_cb *aio_req_ornot; 104typedef eio_req *aio_req_ornot;
125 105
126enum { 106static int max_outstanding = 0;
127 PRI_MIN = -4,
128 PRI_MAX = 4,
129 107
130 DEFAULT_PRI = 0,
131 PRI_BIAS = -PRI_MIN,
132 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
133};
134
135static int next_pri = DEFAULT_PRI + PRI_BIAS; 108static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;
136 109
137static unsigned int started, wanted; 110static int respipe_osf [2], respipe [2] = { -1, -1 };
138static volatile unsigned int nreqs;
139static volatile unsigned int max_outstanding = 0xffffffff;
140static int respipe [2];
141 111
142#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
143# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
144#else
145# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
146#endif
147
148#define LOCK(mutex) pthread_mutex_lock (&(mutex))
149#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
150
151/* worker threads management */
152static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
153
154typedef struct worker {
155 /* locked by wrklock */
156 struct worker *prev, *next;
157
158 pthread_t tid;
159
160 /* locked by reslock, reqlock or wrklock */
161 aio_req req; /* currently processed request */
162 void *dbuf;
163 DIR *dirp;
164} worker;
165
166static worker wrk_first = { &wrk_first, &wrk_first, 0 };
167
168static void worker_clear (worker *wrk)
169{
170 if (wrk->dirp)
171 {
172 closedir (wrk->dirp);
173 wrk->dirp = 0;
174 }
175
176 if (wrk->dbuf)
177 {
178 free (wrk->dbuf);
179 wrk->dbuf = 0;
180 }
181}
182
183static void worker_free (worker *wrk)
184{
185 wrk->next->prev = wrk->prev;
186 wrk->prev->next = wrk->next;
187
188 free (wrk);
189}
190
191static pthread_mutex_t reslock = AIO_MUTEX_INIT;
192static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
193static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
194
195/*
196 * a somewhat faster data structure might be nice, but
197 * with 8 priorities this actually needs <20 insns
198 * per shift, the most expensive operation.
199 */
200typedef struct {
201 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
202 int size;
203} reqq;
204
205static reqq req_queue;
206static reqq res_queue;
207
208int reqq_push (reqq *q, aio_req req)
209{
210 int pri = req->pri;
211 req->next = 0;
212
213 if (q->qe[pri])
214 {
215 q->qe[pri]->next = req;
216 q->qe[pri] = req;
217 }
218 else
219 q->qe[pri] = q->qs[pri] = req;
220
221 return q->size++;
222}
223
224aio_req reqq_shift (reqq *q)
225{
226 int pri;
227
228 if (!q->size)
229 return 0;
230
231 --q->size;
232
233 for (pri = NUM_PRI; pri--; )
234 {
235 aio_req req = q->qs[pri];
236
237 if (req)
238 {
239 if (!(q->qs[pri] = req->next))
240 q->qe[pri] = 0;
241
242 return req;
243 }
244 }
245
246 abort ();
247}
248
249static int poll_cb (int max);
250static void req_invoke (aio_req req);
251static void req_free (aio_req req); 112static void req_destroy (aio_req req);
252static void req_cancel (aio_req req); 113static void req_cancel (aio_req req);
114
115static void want_poll (void)
116{
117 /* write a dummy byte to the pipe so fh becomes ready */
118 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
119}
120
121static void done_poll (void)
122{
123 /* read any signals sent by the worker threads */
124 char buf [4];
125 while (respipe_read (respipe [0], buf, 4) == 4)
126 ;
127}
253 128
254/* must be called at most once */ 129/* must be called at most once */
255static SV *req_sv (aio_req req, const char *klass) 130static SV *req_sv (aio_req req, const char *klass)
256{ 131{
257 if (!req->self) 132 if (!req->self)
275 return mg ? (aio_req)mg->mg_ptr : 0; 150 return mg ? (aio_req)mg->mg_ptr : 0;
276} 151}
277 152
278static void aio_grp_feed (aio_req grp) 153static void aio_grp_feed (aio_req grp)
279{ 154{
280 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 155 if (grp->sv2 && SvOK (grp->sv2))
281 { 156 {
282 int old_len = grp->length;
283
284 if (grp->fh2 && SvOK (grp->fh2))
285 {
286 dSP; 157 dSP;
287 158
288 ENTER; 159 ENTER;
289 SAVETMPS; 160 SAVETMPS;
290 PUSHMARK (SP); 161 PUSHMARK (SP);
291 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 162 XPUSHs (req_sv (grp, AIO_GRP_KLASS));
292 PUTBACK; 163 PUTBACK;
293 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 164 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
294 SPAGAIN; 165 SPAGAIN;
295 FREETMPS; 166 FREETMPS;
296 LEAVE; 167 LEAVE;
297 }
298
299 /* stop if no progress has been made */
300 if (old_len == grp->length)
301 {
302 SvREFCNT_dec (grp->fh2);
303 grp->fh2 = 0;
304 break;
305 }
306 } 168 }
307} 169}
308 170
309static void aio_grp_dec (aio_req grp) 171static int req_invoke (eio_req *req)
310{ 172{
311 --grp->length; 173 dSP;
312 174
313 /* call feeder, if applicable */ 175 if (req->flags & FLAG_SV2_RO_OFF)
314 aio_grp_feed (grp); 176 SvREADONLY_off (req->sv2);
315 177
316 /* finish, if done */ 178 if (!EIO_CANCELLED (req) && SvOK (req->callback))
317 if (!grp->length && grp->fd)
318 { 179 {
319 req_invoke (grp);
320 req_free (grp);
321 }
322}
323
324static void poll_wait ()
325{
326 fd_set rfd;
327
328 while (nreqs)
329 {
330 int size;
331#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
332 LOCK (reslock);
333#endif
334 size = res_queue.size;
335#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
336 UNLOCK (reslock);
337#endif
338
339 if (size)
340 return;
341
342 FD_ZERO(&rfd);
343 FD_SET(respipe [0], &rfd);
344
345 select (respipe [0] + 1, &rfd, 0, 0, 0);
346 }
347}
348
349static void req_invoke (aio_req req)
350{
351 dSP;
352
353 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
354 {
355 errno = req->errorno;
356
357 ENTER; 180 ENTER;
358 SAVETMPS; 181 SAVETMPS;
359 PUSHMARK (SP); 182 PUSHMARK (SP);
360 EXTEND (SP, 1); 183 EXTEND (SP, 1);
361 184
362 switch (req->type) 185 switch (req->type)
363 { 186 {
364 case REQ_READDIR: 187 case EIO_READDIR:
365 { 188 {
366 SV *rv = &PL_sv_undef; 189 SV *rv = &PL_sv_undef;
367 190
368 if (req->result >= 0) 191 if (req->result >= 0)
369 { 192 {
370 int i; 193 int i;
371 char *buf = req->data2ptr; 194 char *buf = req->ptr2;
372 AV *av = newAV (); 195 AV *av = newAV ();
373 196
374 av_extend (av, req->result - 1); 197 av_extend (av, req->result - 1);
375 198
376 for (i = 0; i < req->result; ++i) 199 for (i = 0; i < req->result; ++i)
386 209
387 PUSHs (rv); 210 PUSHs (rv);
388 } 211 }
389 break; 212 break;
390 213
391 case REQ_OPEN: 214 case EIO_OPEN:
392 { 215 {
393 /* convert fd to fh */ 216 /* convert fd to fh */
394 SV *fh; 217 SV *fh = &PL_sv_undef;
395 218
396 PUSHs (sv_2mortal (newSViv (req->result))); 219 if (req->result >= 0)
397 PUTBACK; 220 {
398 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 221 GV *gv = (GV *)sv_newmortal ();
399 SPAGAIN; 222 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
223 char sym [64];
224 int symlen;
225
226 symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);
227 gv_init (gv, stash, sym, symlen, 0);
400 228
401 fh = SvREFCNT_inc (POPs); 229 symlen = snprintf (
230 sym,
231 sizeof (sym),
232 "%s&=%d",
233 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
234 req->result
235 );
402 236
237 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
238 fh = (SV *)gv;
239 }
240
403 PUSHMARK (SP); 241 PUSHs (fh);
404 XPUSHs (sv_2mortal (fh));
405 } 242 }
406 break; 243 break;
407 244
408 case REQ_GROUP: 245 case EIO_GROUP:
409 req->fd = 2; /* mark group as finished */ 246 req->int1 = 2; /* mark group as finished */
410 247
411 if (req->data) 248 if (req->sv1)
412 { 249 {
413 int i; 250 int i;
414 AV *av = (AV *)req->data; 251 AV *av = (AV *)req->sv1;
415 252
416 EXTEND (SP, AvFILL (av) + 1); 253 EXTEND (SP, AvFILL (av) + 1);
417 for (i = 0; i <= AvFILL (av); ++i) 254 for (i = 0; i <= AvFILL (av); ++i)
418 PUSHs (*av_fetch (av, i, 0)); 255 PUSHs (*av_fetch (av, i, 0));
419 } 256 }
420 break; 257 break;
421 258
422 case REQ_NOP: 259 case EIO_NOP:
423 case REQ_BUSY: 260 case EIO_BUSY:
424 break; 261 break;
262
263 case EIO_READLINK:
264 if (req->result > 0)
265 {
266 SvCUR_set (req->sv2, req->result);
267 *SvEND (req->sv2) = 0;
268 PUSHs (req->sv2);
269 }
270 break;
271
272 case EIO_STAT:
273 case EIO_LSTAT:
274 case EIO_FSTAT:
275 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
276 PL_laststatval = req->result;
277 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
278 PUSHs (sv_2mortal (newSViv (req->result)));
279 break;
280
281 case EIO_READ:
282 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
283 *SvEND (req->sv2) = 0;
284 PUSHs (sv_2mortal (newSViv (req->result)));
285 break;
286
287 case EIO_DUP2:
288 if (req->result > 0)
289 req->result = 0;
290 /* FALLTHROUGH */
425 291
426 default: 292 default:
427 PUSHs (sv_2mortal (newSViv (req->result))); 293 PUSHs (sv_2mortal (newSViv (req->result)));
428 break; 294 break;
429 } 295 }
430 296
297 errno = req->errorno;
431 298
432 PUTBACK; 299 PUTBACK;
433 call_sv (req->callback, G_VOID | G_EVAL); 300 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
434 SPAGAIN; 301 SPAGAIN;
435 302
436 FREETMPS; 303 FREETMPS;
437 LEAVE; 304 LEAVE;
305
306 PUTBACK;
438 } 307 }
439 308
440 if (req->grp) 309 return !!SvTRUE (ERRSV);
441 {
442 aio_req grp = req->grp;
443
444 /* unlink request */
445 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
446 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
447
448 if (grp->grp_first == req)
449 grp->grp_first = req->grp_next;
450
451 aio_grp_dec (grp);
452 }
453
454 if (SvTRUE (ERRSV))
455 {
456 req_free (req);
457 croak (0);
458 }
459} 310}
460 311
461static void req_free (aio_req req) 312static void req_destroy (aio_req req)
462{ 313{
463 if (req->self) 314 if (req->self)
464 { 315 {
465 sv_unmagic (req->self, PERL_MAGIC_ext); 316 sv_unmagic (req->self, PERL_MAGIC_ext);
466 SvREFCNT_dec (req->self); 317 SvREFCNT_dec (req->self);
467 } 318 }
468 319
469 SvREFCNT_dec (req->data);
470 SvREFCNT_dec (req->fh); 320 SvREFCNT_dec (req->sv1);
471 SvREFCNT_dec (req->fh2); 321 SvREFCNT_dec (req->sv2);
472 SvREFCNT_dec (req->callback); 322 SvREFCNT_dec (req->callback);
473 Safefree (req->statdata);
474
475 if (req->type == REQ_READDIR)
476 free (req->data2ptr);
477 323
478 Safefree (req); 324 Safefree (req);
479} 325}
480 326
481static void req_cancel_subs (aio_req grp) 327static void req_cancel_subs (aio_req grp)
482{ 328{
483 aio_req sub; 329 aio_req sub;
484 330
485 if (grp->type != REQ_GROUP) 331 if (grp->type != EIO_GROUP)
486 return; 332 return;
487 333
488 SvREFCNT_dec (grp->fh2); 334 SvREFCNT_dec (grp->sv2);
489 grp->fh2 = 0; 335 grp->sv2 = 0;
490 336
491 for (sub = grp->grp_first; sub; sub = sub->grp_next) 337 eio_grp_cancel (grp);
492 req_cancel (sub);
493} 338}
494 339
495static void req_cancel (aio_req req) 340#ifdef USE_SOCKETS_AS_HANDLES
496{ 341# define TO_SOCKET(x) (win32_get_osfhandle (x))
497 req->flags |= FLAG_CANCELLED; 342#else
343# define TO_SOCKET(x) (x)
344#endif
498 345
499 req_cancel_subs (req); 346static void
500} 347create_respipe (void)
501
502static int poll_cb (int max)
503{ 348{
504 dSP; 349 int old_readfd = respipe [0];
505 int count = 0;
506 int do_croak = 0;
507 aio_req req;
508 350
509 for (;;) 351 if (respipe [1] >= 0)
352 respipe_close (TO_SOCKET (respipe [1]));
353
354#ifdef _WIN32
355 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
356#else
357 if (pipe (respipe))
358#endif
359 croak ("unable to initialize result pipe");
360
361 if (old_readfd >= 0)
510 { 362 {
511 while (max <= 0 || count < max) 363 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
512 { 364 croak ("unable to initialize result pipe(2)");
513 LOCK (reslock);
514 req = reqq_shift (&res_queue);
515 365
516 if (req) 366 respipe_close (respipe [0]);
517 { 367 respipe [0] = old_readfd;
518 if (!res_queue.size)
519 {
520 /* read any signals sent by the worker threads */
521 char buf [32];
522 while (read (respipe [0], buf, 32) == 32)
523 ;
524 }
525 }
526
527 UNLOCK (reslock);
528
529 if (!req)
530 break;
531
532 --nreqs;
533
534 if (req->type == REQ_QUIT)
535 --started;
536 else if (req->type == REQ_GROUP && req->length)
537 {
538 req->fd = 1; /* mark request as delayed */
539 continue;
540 }
541 else
542 {
543 if (req->type == REQ_READ)
544 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
545
546 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
547 SvREADONLY_off (req->data);
548
549 if (req->statdata)
550 {
551 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
552 PL_laststatval = req->result;
553 PL_statcache = *(req->statdata);
554 }
555
556 req_invoke (req);
557
558 count++;
559 }
560
561 req_free (req);
562 }
563
564 if (nreqs <= max_outstanding)
565 break;
566
567 poll_wait ();
568
569 max = 0;
570 } 368 }
571 369
572 return count; 370#ifdef _WIN32
573} 371 int arg = 1;
372 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
373 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
374#else
375 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
376 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
377#endif
378 croak ("unable to initialize result pipe(3)");
574 379
575static void *aio_proc(void *arg); 380 respipe_osf [0] = TO_SOCKET (respipe [0]);
381 respipe_osf [1] = TO_SOCKET (respipe [1]);
382}
576 383
577static void start_thread (void) 384static void poll_wait (void)
578{ 385{
579 sigset_t fullsigset, oldsigset; 386 fd_set rfd;
580 pthread_attr_t attr;
581 387
582 worker *wrk = calloc (1, sizeof (worker)); 388 while (eio_nreqs ())
583
584 if (!wrk)
585 croak ("unable to allocate worker thread data");
586
587 pthread_attr_init (&attr);
588 pthread_attr_setstacksize (&attr, STACKSIZE);
589 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
590
591 sigfillset (&fullsigset);
592
593 LOCK (wrklock);
594 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
595
596 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
597 { 389 {
598 wrk->prev = &wrk_first; 390 int size;
599 wrk->next = wrk_first.next; 391
600 wrk_first.next->prev = wrk; 392 X_LOCK (reslock);
601 wrk_first.next = wrk; 393 size = res_queue.size;
602 ++started; 394 X_UNLOCK (reslock);
395
396 if (size)
397 return;
398
399 maybe_start_thread ();
400
401 FD_ZERO (&rfd);
402 FD_SET (respipe [0], &rfd);
403
404 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
603 } 405 }
604 else
605 free (wrk);
606
607 sigprocmask (SIG_SETMASK, &oldsigset, 0);
608 UNLOCK (wrklock);
609} 406}
610 407
611static void req_send (aio_req req) 408static int poll_cb (void)
612{ 409{
613 while (started < wanted && nreqs >= started) 410 int res;
614 start_thread ();
615 411
616 ++nreqs; 412 do
617
618 LOCK (reqlock);
619 reqq_push (&req_queue, req);
620 pthread_cond_signal (&reqwait);
621 UNLOCK (reqlock);
622}
623
624static void end_thread (void)
625{
626 aio_req req;
627
628 Newz (0, req, 1, aio_cb);
629
630 req->type = REQ_QUIT;
631 req->pri = PRI_MAX + PRI_BIAS;
632
633 req_send (req);
634}
635
636static void min_parallel (int nthreads)
637{
638 if (wanted < nthreads)
639 wanted = nthreads;
640}
641
642static void max_parallel (int nthreads)
643{
644 int cur = started;
645
646 if (wanted > nthreads)
647 wanted = nthreads;
648
649 while (cur > wanted)
650 { 413 {
651 end_thread (); 414 res = eio_poll ();
652 cur--; 415
416 if (res > 0)
417 croak (0);
653 } 418 }
654 419 while (max_outstanding && max_outstanding <= eio_nreqs ());
655 while (started > wanted)
656 {
657 poll_wait ();
658 poll_cb (0);
659 }
660}
661
662static void create_pipe ()
663{
664 if (pipe (respipe))
665 croak ("unable to initialize result pipe");
666
667 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
668 croak ("cannot set result pipe to nonblocking mode");
669
670 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
671 croak ("cannot set result pipe to nonblocking mode");
672}
673
674/*****************************************************************************/
675/* work around various missing functions */
676
677#if !HAVE_PREADWRITE
678# define pread aio_pread
679# define pwrite aio_pwrite
680
681/*
682 * make our pread/pwrite safe against themselves, but not against
683 * normal read/write by using a mutex. slows down execution a lot,
684 * but that's your problem, not mine.
685 */
686static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
687
688static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
689{
690 ssize_t res;
691 off_t ooffset;
692
693 LOCK (preadwritelock);
694 ooffset = lseek (fd, 0, SEEK_CUR);
695 lseek (fd, offset, SEEK_SET);
696 res = read (fd, buf, count);
697 lseek (fd, ooffset, SEEK_SET);
698 UNLOCK (preadwritelock);
699 420
700 return res; 421 return res;
701} 422}
702 423
703static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
704{
705 ssize_t res;
706 off_t ooffset;
707
708 LOCK (preadwritelock);
709 ooffset = lseek (fd, 0, SEEK_CUR);
710 lseek (fd, offset, SEEK_SET);
711 res = write (fd, buf, count);
712 lseek (fd, offset, SEEK_SET);
713 UNLOCK (preadwritelock);
714
715 return res;
716}
717#endif
718
719#if !HAVE_FDATASYNC
720# define fdatasync fsync
721#endif
722
723#if !HAVE_READAHEAD
724# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
725
726static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
727{
728 dBUF;
729
730 while (count > 0)
731 {
732 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
733
734 pread (fd, aio_buf, len, offset);
735 offset += len;
736 count -= len;
737 }
738
739 errno = 0;
740}
741
742#endif
743
744#if !HAVE_READDIR_R
745# define readdir_r aio_readdir_r
746
747static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
748
749static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
750{
751 struct dirent *e;
752 int errorno;
753
754 LOCK (readdirlock);
755
756 e = readdir (dirp);
757 errorno = errno;
758
759 if (e)
760 {
761 *res = ent;
762 strcpy (ent->d_name, e->d_name);
763 }
764 else
765 *res = 0;
766
767 UNLOCK (readdirlock);
768
769 errno = errorno;
770 return e ? 0 : -1;
771}
772#endif
773
774/* sendfile always needs emulation */
775static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
776{
777 ssize_t res;
778
779 if (!count)
780 return 0;
781
782#if HAVE_SENDFILE
783# if __linux
784 res = sendfile (ofd, ifd, &offset, count);
785
786# elif __freebsd
787 /*
788 * Of course, the freebsd sendfile is a dire hack with no thoughts
789 * wasted on making it similar to other I/O functions.
790 */
791 {
792 off_t sbytes;
793 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
794
795 if (res < 0 && sbytes)
796 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
797 res = sbytes;
798 }
799
800# elif __hpux
801 res = sendfile (ofd, ifd, offset, count, 0, 0);
802
803# elif __solaris
804 {
805 struct sendfilevec vec;
806 size_t sbytes;
807
808 vec.sfv_fd = ifd;
809 vec.sfv_flag = 0;
810 vec.sfv_off = offset;
811 vec.sfv_len = count;
812
813 res = sendfilev (ofd, &vec, 1, &sbytes);
814
815 if (res < 0 && sbytes)
816 res = sbytes;
817 }
818
819# endif
820#else
821 res = -1;
822 errno = ENOSYS;
823#endif
824
825 if (res < 0
826 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
827#if __solaris
828 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
829#endif
830 )
831 )
832 {
833 /* emulate sendfile. this is a major pain in the ass */
834 dBUF;
835
836 res = 0;
837
838 while (count)
839 {
840 ssize_t cnt;
841
842 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
843
844 if (cnt <= 0)
845 {
846 if (cnt && !res) res = -1;
847 break;
848 }
849
850 cnt = write (ofd, aio_buf, cnt);
851
852 if (cnt <= 0)
853 {
854 if (cnt && !res) res = -1;
855 break;
856 }
857
858 offset += cnt;
859 res += cnt;
860 count -= cnt;
861 }
862 }
863
864 return res;
865}
866
867/* read a full directory */
868static void scandir_ (aio_req req, worker *self)
869{
870 DIR *dirp;
871 union
872 {
873 struct dirent d;
874 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
875 } *u;
876 struct dirent *entp;
877 char *name, *names;
878 int memlen = 4096;
879 int memofs = 0;
880 int res = 0;
881 int errorno;
882
883 LOCK (wrklock);
884 self->dirp = dirp = opendir (req->dataptr);
885 self->dbuf = u = malloc (sizeof (*u));
886 req->data2ptr = names = malloc (memlen);
887 UNLOCK (wrklock);
888
889 if (dirp && u && names)
890 for (;;)
891 {
892 errno = 0;
893 readdir_r (dirp, &u->d, &entp);
894
895 if (!entp)
896 break;
897
898 name = entp->d_name;
899
900 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
901 {
902 int len = strlen (name) + 1;
903
904 res++;
905
906 while (memofs + len > memlen)
907 {
908 memlen *= 2;
909 LOCK (wrklock);
910 req->data2ptr = names = realloc (names, memlen);
911 UNLOCK (wrklock);
912
913 if (!names)
914 break;
915 }
916
917 memcpy (names + memofs, name, len);
918 memofs += len;
919 }
920 }
921
922 if (errno)
923 res = -1;
924
925 req->result = res;
926}
927
928/*****************************************************************************/
929
930static void *aio_proc (void *thr_arg)
931{
932 aio_req req;
933 int type;
934 worker *self = (worker *)thr_arg;
935
936 do
937 {
938 LOCK (reqlock);
939
940 for (;;)
941 {
942 self->req = req = reqq_shift (&req_queue);
943
944 if (req)
945 break;
946
947 pthread_cond_wait (&reqwait, &reqlock);
948 }
949
950 UNLOCK (reqlock);
951
952 errno = 0; /* strictly unnecessary */
953 type = req->type; /* remember type for QUIT check */
954
955 if (!(req->flags & FLAG_CANCELLED))
956 switch (type)
957 {
958 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
959 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
960
961 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
962 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
963
964 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
965 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
966 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
967
968 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
969 case REQ_CLOSE: req->result = close (req->fd); break;
970 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
971 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
972 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
973 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
974 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
975
976 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
977 case REQ_FSYNC: req->result = fsync (req->fd); break;
978 case REQ_READDIR: scandir_ (req, self); break;
979
980 case REQ_BUSY:
981 {
982 struct timeval tv;
983
984 tv.tv_sec = req->fd;
985 tv.tv_usec = req->fd2;
986
987 req->result = select (0, 0, 0, 0, &tv);
988 }
989
990 case REQ_GROUP:
991 case REQ_NOP:
992 case REQ_QUIT:
993 break;
994
995 default:
996 req->result = ENOSYS;
997 break;
998 }
999
1000 req->errorno = errno;
1001
1002 LOCK (reslock);
1003
1004 if (!reqq_push (&res_queue, req))
1005 /* write a dummy byte to the pipe so fh becomes ready */
1006 write (respipe [1], &respipe, 1);
1007
1008 self->req = 0;
1009 worker_clear (self);
1010
1011 UNLOCK (reslock);
1012 }
1013 while (type != REQ_QUIT);
1014
1015 LOCK (wrklock);
1016 worker_free (self);
1017 UNLOCK (wrklock);
1018
1019 return 0;
1020}
1021
1022/*****************************************************************************/
1023
1024static void atfork_prepare (void)
1025{
1026 LOCK (wrklock);
1027 LOCK (reqlock);
1028 LOCK (reslock);
1029#if !HAVE_PREADWRITE
1030 LOCK (preadwritelock);
1031#endif
1032#if !HAVE_READDIR_R
1033 LOCK (readdirlock);
1034#endif
1035}
1036
1037static void atfork_parent (void)
1038{
1039#if !HAVE_READDIR_R
1040 UNLOCK (readdirlock);
1041#endif
1042#if !HAVE_PREADWRITE
1043 UNLOCK (preadwritelock);
1044#endif
1045 UNLOCK (reslock);
1046 UNLOCK (reqlock);
1047 UNLOCK (wrklock);
1048}
1049
1050static void atfork_child (void) 424static void atfork_child (void)
1051{ 425{
1052 aio_req prv;
1053
1054 while (prv = reqq_shift (&req_queue))
1055 req_free (prv);
1056
1057 while (prv = reqq_shift (&res_queue))
1058 req_free (prv);
1059
1060 while (wrk_first.next != &wrk_first)
1061 {
1062 worker *wrk = wrk_first.next;
1063
1064 if (wrk->req)
1065 req_free (wrk->req);
1066
1067 worker_clear (wrk);
1068 worker_free (wrk);
1069 }
1070
1071 started = 0;
1072 nreqs = 0;
1073
1074 close (respipe [0]);
1075 close (respipe [1]);
1076 create_pipe (); 426 create_respipe ();
1077
1078 atfork_parent ();
1079} 427}
1080 428
1081#define dREQ \ 429#define dREQ \
1082 aio_req req; \ 430 aio_req req; \
1083 int req_pri = next_pri; \ 431 int req_pri = next_pri; \
1084 next_pri = DEFAULT_PRI + PRI_BIAS; \ 432 next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \
1085 \ 433 \
1086 if (SvOK (callback) && !SvROK (callback)) \ 434 if (SvOK (callback) && !SvROK (callback)) \
1087 croak ("callback must be undef or of reference type"); \ 435 croak ("callback must be undef or of reference type"); \
1088 \ 436 \
1089 Newz (0, req, 1, aio_cb); \ 437 Newz (0, req, 1, eio_req); \
1090 if (!req) \ 438 if (!req) \
1091 croak ("out of memory during aio_req allocation"); \ 439 croak ("out of memory during eio_req allocation"); \
1092 \ 440 \
1093 req->callback = newSVsv (callback); \ 441 req->callback = newSVsv (callback); \
1094 req->pri = req_pri 442 req->pri = req_pri
1095 443
1096#define REQ_SEND \ 444#define REQ_SEND \
1097 req_send (req); \ 445 eio_submit (req); \
1098 \ 446 \
1099 if (GIMME_V != G_VOID) \ 447 if (GIMME_V != G_VOID) \
1100 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 448 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1101 449
1102MODULE = IO::AIO PACKAGE = IO::AIO 450MODULE = IO::AIO PACKAGE = IO::AIO
1103 451
1104PROTOTYPES: ENABLE 452PROTOTYPES: ENABLE
1105 453
1106BOOT: 454BOOT:
1107{ 455{
1108 HV *stash = gv_stashpv ("IO::AIO", 1); 456 stash = gv_stashpv ("IO::AIO", 1);
457
1109 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 458 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1110 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 459 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1111 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); 460 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
461 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
462 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
463#ifdef _WIN32
464 X_MUTEX_CHECK (wrklock);
465 X_MUTEX_CHECK (reslock);
466 X_MUTEX_CHECK (reqlock);
467 X_MUTEX_CHECK (reqwait);
468 X_MUTEX_CHECK (preadwritelock);
469 X_MUTEX_CHECK (readdirlock);
1112 470
1113 create_pipe (); 471 X_COND_CHECK (reqwait);
1114 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 472#else
473 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
474#endif
475
476 create_respipe ();
477
478 if (eio_init (want_poll, done_poll) < 0)
479 croak ("IO::AIO: unable to initialise eio library");
480
481 /* atfork child called in fifo order, so before eio's handler */
482 X_THREAD_ATFORK (0, 0, atfork_child);
1115} 483}
484
485void
486max_poll_reqs (int nreqs)
487 PROTOTYPE: $
488 CODE:
489 eio_set_max_poll_reqs (nreqs);
490
491void
492max_poll_time (double nseconds)
493 PROTOTYPE: $
494 CODE:
495 eio_set_max_poll_time (nseconds);
1116 496
1117void 497void
1118min_parallel (int nthreads) 498min_parallel (int nthreads)
1119 PROTOTYPE: $ 499 PROTOTYPE: $
500 CODE:
501 eio_set_min_parallel (nthreads);
1120 502
1121void 503void
1122max_parallel (int nthreads) 504max_parallel (int nthreads)
1123 PROTOTYPE: $ 505 PROTOTYPE: $
506 CODE:
507 eio_set_max_parallel (nthreads);
1124 508
1125int 509void
510max_idle (int nthreads)
511 PROTOTYPE: $
512 CODE:
513 eio_set_max_idle (nthreads);
514
515void
1126max_outstanding (int maxreqs) 516max_outstanding (int maxreqs)
1127 PROTOTYPE: $ 517 PROTOTYPE: $
1128 CODE: 518 CODE:
1129 RETVAL = max_outstanding;
1130 max_outstanding = maxreqs; 519 max_outstanding = maxreqs;
1131 OUTPUT:
1132 RETVAL
1133 520
1134void 521void
1135aio_open (pathname,flags,mode,callback=&PL_sv_undef) 522aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1136 SV * pathname
1137 int flags
1138 int mode
1139 SV * callback
1140 PROTOTYPE: $$$;$ 523 PROTOTYPE: $$$;$
1141 PPCODE: 524 PPCODE:
1142{ 525{
1143 dREQ; 526 dREQ;
1144 527
1145 req->type = REQ_OPEN; 528 req->type = EIO_OPEN;
1146 req->data = newSVsv (pathname); 529 req->sv1 = newSVsv (pathname);
1147 req->dataptr = SvPVbyte_nolen (req->data); 530 req->ptr1 = SvPVbyte_nolen (req->sv1);
1148 req->fd = flags; 531 req->int1 = flags;
1149 req->mode = mode; 532 req->int2 = mode;
1150 533
1151 REQ_SEND; 534 REQ_SEND;
1152} 535}
1153 536
1154void 537void
1155aio_close (fh,callback=&PL_sv_undef) 538aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1156 SV * fh
1157 SV * callback
1158 PROTOTYPE: $;$ 539 PROTOTYPE: $;$
1159 ALIAS: 540 ALIAS:
1160 aio_close = REQ_CLOSE
1161 aio_fsync = REQ_FSYNC 541 aio_fsync = EIO_FSYNC
1162 aio_fdatasync = REQ_FDATASYNC 542 aio_fdatasync = EIO_FDATASYNC
1163 PPCODE: 543 PPCODE:
1164{ 544{
1165 dREQ; 545 dREQ;
1166 546
1167 req->type = ix; 547 req->type = ix;
1168 req->fh = newSVsv (fh); 548 req->sv1 = newSVsv (fh);
1169 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 549 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1170 550
1171 REQ_SEND (req); 551 REQ_SEND (req);
1172} 552}
1173 553
1174void 554void
555aio_close (SV *fh, SV *callback=&PL_sv_undef)
556 PROTOTYPE: $;$
557 PPCODE:
558{
559 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
560 dREQ;
561
562 if (close_pipe < 0)
563 {
564 int pipefd [2];
565
566 if (pipe (pipefd) < 0
567 || close (pipefd [1]) < 0
568 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
569 abort (); /*D*/
570
571 close_pipe = pipefd [0];
572 }
573
574 req->type = EIO_DUP2;
575 req->int1 = close_pipe;
576 req->sv2 = newSVsv (fh);
577 req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));
578
579 REQ_SEND (req);
580}
581
582void
1175aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 583aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1176 SV * fh
1177 UV offset
1178 UV length
1179 SV * data
1180 UV dataoffset
1181 SV * callback
1182 ALIAS: 584 ALIAS:
1183 aio_read = REQ_READ 585 aio_read = EIO_READ
1184 aio_write = REQ_WRITE 586 aio_write = EIO_WRITE
1185 PROTOTYPE: $$$$$;$ 587 PROTOTYPE: $$$$$;$
1186 PPCODE: 588 PPCODE:
1187{ 589{
1188 aio_req req;
1189 STRLEN svlen; 590 STRLEN svlen;
1190 char *svptr = SvPVbyte (data, svlen); 591 char *svptr = SvPVbyte (data, svlen);
592 UV len = SvUV (length);
1191 593
1192 SvUPGRADE (data, SVt_PV); 594 SvUPGRADE (data, SVt_PV);
1193 SvPOK_on (data); 595 SvPOK_on (data);
1194 596
1195 if (dataoffset < 0) 597 if (dataoffset < 0)
1196 dataoffset += svlen; 598 dataoffset += svlen;
1197 599
1198 if (dataoffset < 0 || dataoffset > svlen) 600 if (dataoffset < 0 || dataoffset > svlen)
1199 croak ("data offset outside of string"); 601 croak ("dataoffset outside of data scalar");
1200 602
1201 if (ix == REQ_WRITE) 603 if (ix == EIO_WRITE)
1202 { 604 {
1203 /* write: check length and adjust. */ 605 /* write: check length and adjust. */
1204 if (length < 0 || length + dataoffset > svlen) 606 if (!SvOK (length) || len + dataoffset > svlen)
1205 length = svlen - dataoffset; 607 len = svlen - dataoffset;
1206 } 608 }
1207 else 609 else
1208 { 610 {
1209 /* read: grow scalar as necessary */ 611 /* read: grow scalar as necessary */
1210 svptr = SvGROW (data, length + dataoffset); 612 svptr = SvGROW (data, len + dataoffset + 1);
1211 } 613 }
1212 614
1213 if (length < 0) 615 if (len < 0)
1214 croak ("length must not be negative"); 616 croak ("length must not be negative");
1215 617
1216 { 618 {
1217 dREQ; 619 dREQ;
1218 620
1219 req->type = ix; 621 req->type = ix;
1220 req->fh = newSVsv (fh); 622 req->sv1 = newSVsv (fh);
1221 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 623 req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))
1222 : IoOFP (sv_2io (fh))); 624 : IoOFP (sv_2io (fh)));
625 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1223 req->offset = offset; 626 req->size = len;
1224 req->length = length;
1225 req->data = SvREFCNT_inc (data); 627 req->sv2 = SvREFCNT_inc (data);
1226 req->dataptr = (char *)svptr + dataoffset; 628 req->ptr2 = (char *)svptr + dataoffset;
629 req->stroffset = dataoffset;
1227 630
1228 if (!SvREADONLY (data)) 631 if (!SvREADONLY (data))
1229 { 632 {
1230 SvREADONLY_on (data); 633 SvREADONLY_on (data);
1231 req->data2ptr = (void *)data; 634 req->flags |= FLAG_SV2_RO_OFF;
1232 } 635 }
1233 636
1234 REQ_SEND; 637 REQ_SEND;
1235 } 638 }
1236} 639}
1237 640
1238void 641void
642aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
643 PROTOTYPE: $$;$
644 PPCODE:
645{
646 SV *data;
647 dREQ;
648
649 data = newSV (NAME_MAX);
650 SvPOK_on (data);
651
652 req->type = EIO_READLINK;
653 req->sv1 = newSVsv (path);
654 req->ptr1 = SvPVbyte_nolen (req->sv1);
655 req->sv2 = data;
656 req->ptr2 = SvPVbyte_nolen (data);
657
658 REQ_SEND;
659}
660
661void
1239aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 662aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)
1240 SV * out_fh
1241 SV * in_fh
1242 UV in_offset
1243 UV length
1244 SV * callback
1245 PROTOTYPE: $$$$;$ 663 PROTOTYPE: $$$$;$
1246 PPCODE: 664 PPCODE:
1247{ 665{
1248 dREQ; 666 dREQ;
1249 667
1250 req->type = REQ_SENDFILE; 668 req->type = EIO_SENDFILE;
1251 req->fh = newSVsv (out_fh); 669 req->sv1 = newSVsv (out_fh);
1252 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 670 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1253 req->fh2 = newSVsv (in_fh); 671 req->sv2 = newSVsv (in_fh);
1254 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 672 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1255 req->offset = in_offset; 673 req->offs = SvVAL64 (in_offset);
1256 req->length = length; 674 req->size = length;
1257 675
1258 REQ_SEND; 676 REQ_SEND;
1259} 677}
1260 678
1261void 679void
1262aio_readahead (fh,offset,length,callback=&PL_sv_undef) 680aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)
1263 SV * fh
1264 UV offset
1265 IV length
1266 SV * callback
1267 PROTOTYPE: $$$;$ 681 PROTOTYPE: $$$;$
1268 PPCODE: 682 PPCODE:
1269{ 683{
1270 dREQ; 684 dREQ;
1271 685
1272 req->type = REQ_READAHEAD; 686 req->type = EIO_READAHEAD;
1273 req->fh = newSVsv (fh); 687 req->sv1 = newSVsv (fh);
1274 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 688 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));
1275 req->offset = offset; 689 req->offs = SvVAL64 (offset);
1276 req->length = length; 690 req->size = length;
1277 691
1278 REQ_SEND; 692 REQ_SEND;
1279} 693}
1280 694
1281void 695void
1282aio_stat (fh_or_path,callback=&PL_sv_undef) 696aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1283 SV * fh_or_path
1284 SV * callback
1285 ALIAS: 697 ALIAS:
1286 aio_stat = REQ_STAT 698 aio_stat = EIO_STAT
1287 aio_lstat = REQ_LSTAT 699 aio_lstat = EIO_LSTAT
1288 PPCODE: 700 PPCODE:
1289{ 701{
1290 dREQ; 702 dREQ;
1291 703
1292 New (0, req->statdata, 1, Stat_t); 704 req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));
1293 if (!req->statdata) 705 if (!req->ptr2)
1294 { 706 {
1295 req_free (req); 707 req_destroy (req);
1296 croak ("out of memory during aio_req->statdata allocation"); 708 croak ("out of memory during aio_stat statdata allocation");
1297 } 709 }
710
711 req->flags |= EIO_FLAG_PTR2_FREE;
712 req->sv1 = newSVsv (fh_or_path);
1298 713
1299 if (SvPOK (fh_or_path)) 714 if (SvPOK (fh_or_path))
1300 { 715 {
1301 req->type = ix; 716 req->type = ix;
1302 req->data = newSVsv (fh_or_path);
1303 req->dataptr = SvPVbyte_nolen (req->data); 717 req->ptr1 = SvPVbyte_nolen (req->sv1);
1304 } 718 }
1305 else 719 else
1306 { 720 {
1307 req->type = REQ_FSTAT; 721 req->type = EIO_FSTAT;
1308 req->fh = newSVsv (fh_or_path);
1309 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 722 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1310 } 723 }
1311 724
1312 REQ_SEND; 725 REQ_SEND;
1313} 726}
1314 727
1315void 728void
729aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
730 PPCODE:
731{
732 dREQ;
733
734 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
735 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
736 req->sv1 = newSVsv (fh_or_path);
737
738 if (SvPOK (fh_or_path))
739 {
740 req->type = EIO_UTIME;
741 req->ptr1 = SvPVbyte_nolen (req->sv1);
742 }
743 else
744 {
745 req->type = EIO_FUTIME;
746 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
747 }
748
749 REQ_SEND;
750}
751
752void
753aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
754 PPCODE:
755{
756 dREQ;
757
758 req->sv1 = newSVsv (fh_or_path);
759 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
760
761 if (SvPOK (fh_or_path))
762 {
763 req->type = EIO_TRUNCATE;
764 req->ptr1 = SvPVbyte_nolen (req->sv1);
765 }
766 else
767 {
768 req->type = EIO_FTRUNCATE;
769 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
770 }
771
772 REQ_SEND;
773}
774
775void
776aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
777 ALIAS:
778 aio_chmod = EIO_CHMOD
779 aio_fchmod = EIO_FCHMOD
780 aio_mkdir = EIO_MKDIR
781 PPCODE:
782{
783 dREQ;
784
785 req->type = ix;
786 req->int2 = mode;
787 req->sv1 = newSVsv (fh_or_path);
788
789 if (ix == EIO_FCHMOD)
790 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
791 else
792 req->ptr1 = SvPVbyte_nolen (req->sv1);
793
794 REQ_SEND;
795}
796
797void
798aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
799 PPCODE:
800{
801 dREQ;
802
803 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
804 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
805 req->sv1 = newSVsv (fh_or_path);
806
807 if (SvPOK (fh_or_path))
808 {
809 req->type = EIO_CHOWN;
810 req->ptr1 = SvPVbyte_nolen (req->sv1);
811 }
812 else
813 {
814 req->type = EIO_FCHOWN;
815 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
816 }
817
818 REQ_SEND;
819}
820
821void
1316aio_unlink (pathname,callback=&PL_sv_undef) 822aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1317 SV * pathname
1318 SV * callback
1319 ALIAS: 823 ALIAS:
1320 aio_unlink = REQ_UNLINK 824 aio_unlink = EIO_UNLINK
1321 aio_rmdir = REQ_RMDIR 825 aio_rmdir = EIO_RMDIR
1322 aio_readdir = REQ_READDIR 826 aio_readdir = EIO_READDIR
1323 PPCODE: 827 PPCODE:
1324{ 828{
1325 dREQ; 829 dREQ;
1326 830
1327 req->type = ix; 831 req->type = ix;
1328 req->data = newSVsv (pathname); 832 req->sv1 = newSVsv (pathname);
1329 req->dataptr = SvPVbyte_nolen (req->data); 833 req->ptr1 = SvPVbyte_nolen (req->sv1);
834
835 REQ_SEND;
836}
837
838void
839aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
840 ALIAS:
841 aio_link = EIO_LINK
842 aio_symlink = EIO_SYMLINK
843 aio_rename = EIO_RENAME
844 PPCODE:
845{
846 dREQ;
847
848 req->type = ix;
849 req->sv1 = newSVsv (oldpath);
850 req->ptr1 = SvPVbyte_nolen (req->sv1);
851 req->sv2 = newSVsv (newpath);
852 req->ptr2 = SvPVbyte_nolen (req->sv2);
1330 853
1331 REQ_SEND; 854 REQ_SEND;
1332} 855}
1333 856
1334void 857void
1335aio_link (oldpath,newpath,callback=&PL_sv_undef) 858aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1336 SV * oldpath
1337 SV * newpath
1338 SV * callback
1339 ALIAS:
1340 aio_link = REQ_LINK
1341 aio_symlink = REQ_SYMLINK
1342 aio_rename = REQ_RENAME
1343 PPCODE: 859 PPCODE:
1344{ 860{
1345 dREQ; 861 dREQ;
1346 862
1347 req->type = ix; 863 req->type = EIO_MKNOD;
1348 req->fh = newSVsv (oldpath); 864 req->sv1 = newSVsv (pathname);
1349 req->data2ptr = SvPVbyte_nolen (req->fh); 865 req->ptr1 = SvPVbyte_nolen (req->sv1);
1350 req->data = newSVsv (newpath); 866 req->int2 = (mode_t)mode;
1351 req->dataptr = SvPVbyte_nolen (req->data); 867 req->offs = dev;
1352 868
1353 REQ_SEND; 869 REQ_SEND;
1354} 870}
1355 871
1356void 872void
1357aio_busy (delay,callback=&PL_sv_undef) 873aio_busy (double delay, SV *callback=&PL_sv_undef)
1358 double delay
1359 SV * callback
1360 PPCODE: 874 PPCODE:
1361{ 875{
1362 dREQ; 876 dREQ;
1363 877
1364 req->type = REQ_BUSY; 878 req->type = EIO_BUSY;
1365 req->fd = delay < 0. ? 0 : delay; 879 req->nv1 = delay < 0. ? 0. : delay;
1366 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1367 880
1368 REQ_SEND; 881 REQ_SEND;
1369} 882}
1370 883
1371void 884void
1372aio_group (callback=&PL_sv_undef) 885aio_group (SV *callback=&PL_sv_undef)
1373 SV * callback
1374 PROTOTYPE: ;$ 886 PROTOTYPE: ;$
1375 PPCODE: 887 PPCODE:
1376{ 888{
1377 dREQ; 889 dREQ;
1378 890
1379 req->type = REQ_GROUP; 891 req->type = EIO_GROUP;
892
1380 req_send (req); 893 eio_submit (req);
1381
1382 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 894 XPUSHs (req_sv (req, AIO_GRP_KLASS));
1383} 895}
1384 896
1385void 897void
1386aio_nop (callback=&PL_sv_undef) 898aio_nop (SV *callback=&PL_sv_undef)
1387 SV * callback 899 ALIAS:
900 aio_nop = EIO_NOP
901 aio_sync = EIO_SYNC
1388 PPCODE: 902 PPCODE:
1389{ 903{
1390 dREQ; 904 dREQ;
1391 905
1392 req->type = REQ_NOP; 906 req->type = ix;
1393 907
1394 REQ_SEND; 908 REQ_SEND;
1395} 909}
1396 910
1397void 911int
1398aioreq_pri (int pri = DEFAULT_PRI) 912aioreq_pri (int pri = 0)
1399 CODE: 913 PROTOTYPE: ;$
914 CODE:
915 RETVAL = next_pri - EIO_PRI_BIAS;
916 if (items > 0)
917 {
1400 if (pri < PRI_MIN) pri = PRI_MIN; 918 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1401 if (pri > PRI_MAX) pri = PRI_MAX; 919 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1402 next_pri = pri + PRI_BIAS; 920 next_pri = pri + EIO_PRI_BIAS;
921 }
922 OUTPUT:
923 RETVAL
1403 924
1404void 925void
1405aioreq_nice (int nice = 0) 926aioreq_nice (int nice = 0)
1406 CODE: 927 CODE:
1407 nice = next_pri - nice; 928 nice = next_pri - nice;
1408 if (nice < PRI_MIN) nice = PRI_MIN; 929 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1409 if (nice > PRI_MAX) nice = PRI_MAX; 930 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1410 next_pri = nice + PRI_BIAS; 931 next_pri = nice + EIO_PRI_BIAS;
1411 932
1412void 933void
1413flush () 934flush ()
1414 PROTOTYPE: 935 PROTOTYPE:
1415 CODE: 936 CODE:
1416 while (nreqs) 937 while (eio_nreqs ())
1417 { 938 {
1418 poll_wait (); 939 poll_wait ();
1419 poll_cb (0); 940 poll_cb ();
1420 } 941 }
1421 942
1422void 943int
1423poll() 944poll()
1424 PROTOTYPE: 945 PROTOTYPE:
1425 CODE: 946 CODE:
1426 if (nreqs)
1427 {
1428 poll_wait (); 947 poll_wait ();
1429 poll_cb (0); 948 RETVAL = poll_cb ();
1430 } 949 OUTPUT:
950 RETVAL
1431 951
1432int 952int
1433poll_fileno() 953poll_fileno()
1434 PROTOTYPE: 954 PROTOTYPE:
1435 CODE: 955 CODE:
1439 959
1440int 960int
1441poll_cb(...) 961poll_cb(...)
1442 PROTOTYPE: 962 PROTOTYPE:
1443 CODE: 963 CODE:
1444 RETVAL = poll_cb (0); 964 RETVAL = poll_cb ();
1445 OUTPUT: 965 OUTPUT:
1446 RETVAL 966 RETVAL
1447 967
1448int
1449poll_some(int max = 0)
1450 PROTOTYPE: $
1451 CODE:
1452 RETVAL = poll_cb (max);
1453 OUTPUT:
1454 RETVAL
1455
1456void 968void
1457poll_wait() 969poll_wait()
1458 PROTOTYPE: 970 PROTOTYPE:
1459 CODE: 971 CODE:
1460 if (nreqs)
1461 poll_wait (); 972 poll_wait ();
1462 973
1463int 974int
1464nreqs() 975nreqs()
1465 PROTOTYPE: 976 PROTOTYPE:
1466 CODE: 977 CODE:
1467 RETVAL = nreqs; 978 RETVAL = eio_nreqs ();
1468 OUTPUT: 979 OUTPUT:
1469 RETVAL 980 RETVAL
1470 981
982int
983nready()
984 PROTOTYPE:
985 CODE:
986 RETVAL = eio_nready ();
987 OUTPUT:
988 RETVAL
989
990int
991npending()
992 PROTOTYPE:
993 CODE:
994 RETVAL = eio_npending ();
995 OUTPUT:
996 RETVAL
997
998int
999nthreads()
1000 PROTOTYPE:
1001 CODE:
1002 if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
1003 RETVAL = started;
1004 if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1005 OUTPUT:
1006 RETVAL
1007
1471PROTOTYPES: DISABLE 1008PROTOTYPES: DISABLE
1472 1009
1473MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1010MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1474 1011
1475void 1012void
1476cancel (aio_req_ornot req) 1013cancel (aio_req_ornot req)
1477 CODE: 1014 CODE:
1478 req_cancel (req); 1015 eio_cancel (req);
1479 1016
1480void 1017void
1481cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1018cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1482 CODE: 1019 CODE:
1483 SvREFCNT_dec (req->callback); 1020 SvREFCNT_dec (req->callback);
1488void 1025void
1489add (aio_req grp, ...) 1026add (aio_req grp, ...)
1490 PPCODE: 1027 PPCODE:
1491{ 1028{
1492 int i; 1029 int i;
1493 aio_req req;
1494 1030
1495 if (grp->fd == 2) 1031 if (grp->int1 == 2)
1496 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1032 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1497 1033
1498 for (i = 1; i < items; ++i ) 1034 for (i = 1; i < items; ++i )
1499 { 1035 {
1036 aio_req req;
1037
1500 if (GIMME_V != G_VOID) 1038 if (GIMME_V != G_VOID)
1501 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1039 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1502 1040
1503 req = SvAIO_REQ (ST (i)); 1041 req = SvAIO_REQ (ST (i));
1504 1042
1505 if (req) 1043 if (req)
1506 { 1044 eio_grp_add (grp, req);
1507 ++grp->length;
1508 req->grp = grp;
1509
1510 req->grp_prev = 0;
1511 req->grp_next = grp->grp_first;
1512
1513 if (grp->grp_first)
1514 grp->grp_first->grp_prev = req;
1515
1516 grp->grp_first = req;
1517 }
1518 } 1045 }
1519} 1046}
1520 1047
1521void 1048void
1522cancel_subs (aio_req_ornot req) 1049cancel_subs (aio_req_ornot req)
1526void 1053void
1527result (aio_req grp, ...) 1054result (aio_req grp, ...)
1528 CODE: 1055 CODE:
1529{ 1056{
1530 int i; 1057 int i;
1058 AV *av;
1059
1060 grp->errorno = errno;
1061
1531 AV *av = newAV (); 1062 av = newAV ();
1532 1063
1533 for (i = 1; i < items; ++i ) 1064 for (i = 1; i < items; ++i )
1534 av_push (av, newSVsv (ST (i))); 1065 av_push (av, newSVsv (ST (i)));
1535 1066
1536 SvREFCNT_dec (grp->data); 1067 SvREFCNT_dec (grp->sv1);
1537 grp->data = (SV *)av; 1068 grp->sv1 = (SV *)av;
1538} 1069}
1070
1071void
1072errno (aio_req grp, int errorno = errno)
1073 CODE:
1074 grp->errorno = errorno;
1539 1075
1540void 1076void
1541limit (aio_req grp, int limit) 1077limit (aio_req grp, int limit)
1542 CODE: 1078 CODE:
1543 grp->fd2 = limit; 1079 eio_grp_limit (grp, limit);
1544 aio_grp_feed (grp);
1545 1080
1546void 1081void
1547feed (aio_req grp, SV *callback=&PL_sv_undef) 1082feed (aio_req grp, SV *callback=&PL_sv_undef)
1548 CODE: 1083 CODE:
1549{ 1084{
1550 SvREFCNT_dec (grp->fh2); 1085 SvREFCNT_dec (grp->sv2);
1551 grp->fh2 = newSVsv (callback); 1086 grp->sv2 = newSVsv (callback);
1552 1087
1553 if (grp->fd2 <= 0) 1088 if (grp->int2 <= 0)
1554 grp->fd2 = 2; 1089 grp->int2 = 2;
1555 1090
1556 aio_grp_feed (grp); 1091 eio_grp_limit (grp, grp->int2);
1557} 1092}
1558 1093

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