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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.88 by root, Mon Oct 30 23:43:17 2006 UTC vs.
Revision 1.152 by root, Tue Jul 14 00:32:27 2009 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" 9#include "schmorp.h"
18
19#include <pthread.h>
20 10
21#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
22#include <errno.h> 13#include <errno.h>
23#include <sys/time.h>
24#include <sys/select.h>
25#include <sys/types.h> 14#include <sys/types.h>
26#include <sys/stat.h> 15#include <sys/stat.h>
27#include <limits.h> 16#include <limits.h>
28#include <unistd.h>
29#include <fcntl.h> 17#include <fcntl.h>
30#include <signal.h>
31#include <sched.h> 18#include <sched.h>
32 19
33#if HAVE_SENDFILE 20/* perl namespace pollution */
34# if __linux 21#undef VERSION
35# include <sys/sendfile.h>
36# elif __freebsd
37# include <sys/socket.h>
38# include <sys/uio.h>
39# elif __hpux
40# include <sys/socket.h>
41# elif __solaris /* not yet */
42# include <sys/sendfile.h>
43# else
44# error sendfile support requested but not available
45# endif
46#endif
47 22
48/* number of seconds after which idle threads exit */ 23#ifdef _WIN32
49#define IDLE_TIMEOUT 10
50 24
51/* used for struct dirent, AIX doesn't provide it */ 25# define EIO_STRUCT_DIRENT Direntry_t
52#ifndef NAME_MAX 26# undef malloc
53# define NAME_MAX 4096 27# undef free
54#endif
55 28
56#ifndef PTHREAD_STACK_MIN 29// perl overrides all those nice win32 functions
57/* care for broken platforms, e.g. windows */ 30# undef open
58# define PTHREAD_STACK_MIN 16384 31# undef read
59#endif 32# undef write
33# undef send
34# undef recv
35# undef stat
36# undef fstat
37# define lstat stat
38# undef truncate
39# undef ftruncate
40# undef open
41# undef close
42# undef unlink
43# undef rmdir
44# undef rename
45# undef lseek
60 46
61#if __ia64 47# define chown(a,b,c) (errno = ENOSYS, -1)
62# define STACKSIZE 65536 48# define fchown(a,b,c) (errno = ENOSYS, -1)
63#elif __i386 || __x86_64 /* 16k is unreasonably high :( */ 49# define fchmod(a,b) (errno = ENOSYS, -1)
64# define STACKSIZE PTHREAD_STACK_MIN 50# define symlink(a,b) (errno = ENOSYS, -1)
51# define readlink(a,b,c) (errno = ENOSYS, -1)
52# define mknod(a,b,c) (errno = ENOSYS, -1)
53# define truncate(a,b) (errno = ENOSYS, -1)
54# define ftruncate(fd,o) chsize ((fd), (o))
55# define fsync(fd) _commit (fd)
56# define opendir(fd) (errno = ENOSYS, 0)
57# define readdir(fd) (errno = ENOSYS, -1)
58# define closedir(fd) (errno = ENOSYS, -1)
59# define mkdir(a,b) mkdir (a)
60
65#else 61#else
66# define STACKSIZE 16384
67#endif
68 62
69/* wether word reads are potentially non-atomic. 63# include <sys/time.h>
70 * this is conservatice, likely most arches this runs 64# include <sys/select.h>
71 * on have atomic word read/writes. 65# include <unistd.h>
72 */ 66# include <utime.h>
73#ifndef WORDACCESS_UNSAFE 67# include <signal.h>
74# if __i386 || __x86_64 68# define EIO_STRUCT_DIRENT struct dirent
75# define WORDACCESS_UNSAFE 0 69
76# else
77# define WORDACCESS_UNSAFE 1
78# endif 70#endif
79#endif
80 71
81/* buffer size for various temporary buffers */ 72/* perl stupidly overrides readdir and maybe others */
82#define AIO_BUFSIZE 65536 73/* with thread-unsafe versions, imagine that :( */
74#undef readdir
75#undef opendir
76#undef closedir
83 77
84#define dBUF \ 78#define EIO_STRUCT_STAT Stat_t
85 char *aio_buf; \
86 LOCK (wrklock); \
87 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
88 UNLOCK (wrklock); \
89 if (!aio_buf) \
90 return -1;
91 79
92enum { 80/* use NV for 32 bit perls as it allows larger offsets */
93 REQ_QUIT, 81#if IVSIZE >= 8
94 REQ_OPEN, REQ_CLOSE, 82# define VAL64 IV
95 REQ_READ, REQ_WRITE, REQ_READAHEAD, 83# define SvVAL64 SvIV
96 REQ_SENDFILE, 84# define newSVval64 newSViv
97 REQ_STAT, REQ_LSTAT, REQ_FSTAT, 85#else
98 REQ_FSYNC, REQ_FDATASYNC, 86# define VAL64 NV
99 REQ_UNLINK, REQ_RMDIR, REQ_RENAME, 87# define SvVAL64 SvNV
100 REQ_MKNOD, REQ_READDIR, 88# define newSVval64 newSVnv
101 REQ_LINK, REQ_SYMLINK, REQ_READLINK, 89#endif
102 REQ_GROUP, REQ_NOP, 90
103 REQ_BUSY, 91/*****************************************************************************/
104}; 92
93#if __GNUC__ >= 3
94# define expect(expr,value) __builtin_expect ((expr),(value))
95#else
96# define expect(expr,value) (expr)
97#endif
98
99#define expect_false(expr) expect ((expr) != 0, 0)
100#define expect_true(expr) expect ((expr) != 0, 1)
101
102/*****************************************************************************/
103
104static HV *stash;
105typedef SV SV8; /* byte-sv, used for argument-checking */
106typedef int aio_rfd; /* read file desriptor */
107typedef int aio_wfd; /* write file descriptor */
105 108
106#define AIO_REQ_KLASS "IO::AIO::REQ" 109#define AIO_REQ_KLASS "IO::AIO::REQ"
107#define AIO_GRP_KLASS "IO::AIO::GRP" 110#define AIO_GRP_KLASS "IO::AIO::GRP"
108 111
109typedef struct aio_cb 112#define EIO_REQ_MEMBERS \
110{
111 struct aio_cb *volatile next;
112
113 SV *callback, *fh; 113 SV *callback; \
114 SV *sv1, *sv2; 114 SV *sv1, *sv2; \
115 void *ptr1, *ptr2;
116 off_t offs;
117 size_t size;
118 ssize_t result;
119
120 STRLEN stroffset; 115 STRLEN stroffset; \
121 int type; 116 SV *self;
122 int int1, int2;
123 int errorno;
124 mode_t mode; /* open */
125 117
126 unsigned char flags; 118#define EIO_NO_WRAPPERS 1
127 unsigned char pri;
128 119
129 SV *self; /* the perl counterpart of this request, if any */ 120#include "libeio/eio.h"
130 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 121
131} aio_cb; 122#ifndef POSIX_FADV_NORMAL
123# define POSIX_FADV_NORMAL 0
124# define NO_FADVISE 1
125#endif
126
127#ifndef POSIX_FADV_SEQUENTIAL
128# define POSIX_FADV_SEQUENTIAL 0
129#endif
130
131#ifndef POSIX_FADV_RANDOM
132# define POSIX_FADV_RANDOM 0
133#endif
134
135#ifndef POSIX_FADV_NOREUSE
136# define POSIX_FADV_NOREUSE 0
137#endif
138
139#ifndef POSIX_FADV_WILLNEED
140# define POSIX_FADV_WILLNEED 0
141#endif
142
143#ifndef POSIX_FADV_DONTNEED
144# define POSIX_FADV_DONTNEED 0
145#endif
146
147static int req_invoke (eio_req *req);
148#define EIO_FINISH(req) req_invoke (req)
149static void req_destroy (eio_req *grp);
150#define EIO_DESTROY(req) req_destroy (req)
132 151
133enum { 152enum {
134 FLAG_CANCELLED = 0x01,
135 FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */ 153 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
136 FLAG_PTR2_FREE = 0x80, /* need free(ptr2) */
137}; 154};
138 155
156#include "libeio/eio.c"
157
139typedef aio_cb *aio_req; 158typedef eio_req *aio_req;
140typedef aio_cb *aio_req_ornot; 159typedef eio_req *aio_req_ornot;
141 160
142enum { 161static SV *on_next_submit;
143 PRI_MIN = -4, 162static int next_pri = EIO_PRI_DEFAULT;
144 PRI_MAX = 4, 163static int max_outstanding;
145 164
146 DEFAULT_PRI = 0, 165static int respipe_osf [2], respipe [2] = { -1, -1 };
147 PRI_BIAS = -PRI_MIN,
148 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
149};
150 166
151#define AIO_TICKS ((1000000 + 1023) >> 10)
152
153static unsigned int max_poll_time = 0;
154static unsigned int max_poll_reqs = 0;
155
156/* calculcate time difference in ~1/AIO_TICKS of a second */
157static int tvdiff (struct timeval *tv1, struct timeval *tv2)
158{
159 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
160 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
161}
162
163static int next_pri = DEFAULT_PRI + PRI_BIAS;
164
165static unsigned int started, idle, wanted;
166
167#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
168# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
169#else
170# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
171#endif
172
173#define LOCK(mutex) pthread_mutex_lock (&(mutex))
174#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
175
176/* worker threads management */
177static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
178
179typedef struct worker {
180 /* locked by wrklock */
181 struct worker *prev, *next;
182
183 pthread_t tid;
184
185 /* locked by reslock, reqlock or wrklock */
186 aio_req req; /* currently processed request */
187 void *dbuf;
188 DIR *dirp;
189} worker;
190
191static worker wrk_first = { &wrk_first, &wrk_first, 0 };
192
193static void worker_clear (worker *wrk)
194{
195 if (wrk->dirp)
196 {
197 closedir (wrk->dirp);
198 wrk->dirp = 0;
199 }
200
201 if (wrk->dbuf)
202 {
203 free (wrk->dbuf);
204 wrk->dbuf = 0;
205 }
206}
207
208static void worker_free (worker *wrk)
209{
210 wrk->next->prev = wrk->prev;
211 wrk->prev->next = wrk->next;
212
213 free (wrk);
214}
215
216static volatile unsigned int nreqs, nready, npending;
217static volatile unsigned int max_idle = 4;
218static volatile unsigned int max_outstanding = 0xffffffff;
219static int respipe [2];
220
221static pthread_mutex_t reslock = AIO_MUTEX_INIT;
222static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
223static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
224
225#if WORDACCESS_UNSAFE
226
227static unsigned int get_nready ()
228{
229 unsigned int retval;
230
231 LOCK (reqlock);
232 retval = nready;
233 UNLOCK (reqlock);
234
235 return retval;
236}
237
238static unsigned int get_npending ()
239{
240 unsigned int retval;
241
242 LOCK (reslock);
243 retval = npending;
244 UNLOCK (reslock);
245
246 return retval;
247}
248
249static unsigned int get_nthreads ()
250{
251 unsigned int retval;
252
253 LOCK (wrklock);
254 retval = started;
255 UNLOCK (wrklock);
256
257 return retval;
258}
259
260#else
261
262# define get_nready() nready
263# define get_npending() npending
264# define get_nthreads() started
265
266#endif
267
268/*
269 * a somewhat faster data structure might be nice, but
270 * with 8 priorities this actually needs <20 insns
271 * per shift, the most expensive operation.
272 */
273typedef struct {
274 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
275 int size;
276} reqq;
277
278static reqq req_queue;
279static reqq res_queue;
280
281int reqq_push (reqq *q, aio_req req)
282{
283 int pri = req->pri;
284 req->next = 0;
285
286 if (q->qe[pri])
287 {
288 q->qe[pri]->next = req;
289 q->qe[pri] = req;
290 }
291 else
292 q->qe[pri] = q->qs[pri] = req;
293
294 return q->size++;
295}
296
297aio_req reqq_shift (reqq *q)
298{
299 int pri;
300
301 if (!q->size)
302 return 0;
303
304 --q->size;
305
306 for (pri = NUM_PRI; pri--; )
307 {
308 aio_req req = q->qs[pri];
309
310 if (req)
311 {
312 if (!(q->qs[pri] = req->next))
313 q->qe[pri] = 0;
314
315 return req;
316 }
317 }
318
319 abort ();
320}
321
322static int poll_cb ();
323static void req_invoke (aio_req req);
324static void req_free (aio_req req); 167static void req_destroy (aio_req req);
325static void req_cancel (aio_req req); 168static void req_cancel (aio_req req);
169
170static void want_poll (void)
171{
172 /* write a dummy byte to the pipe so fh becomes ready */
173 respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
174}
175
176static void done_poll (void)
177{
178 /* read any signals sent by the worker threads */
179 char buf [4];
180 while (respipe_read (respipe [0], buf, 4) == 4)
181 ;
182}
326 183
327/* must be called at most once */ 184/* must be called at most once */
328static SV *req_sv (aio_req req, const char *klass) 185static SV *req_sv (aio_req req, const char *klass)
329{ 186{
330 if (!req->self) 187 if (!req->self)
… …
348 return mg ? (aio_req)mg->mg_ptr : 0; 205 return mg ? (aio_req)mg->mg_ptr : 0;
349} 206}
350 207
351static void aio_grp_feed (aio_req grp) 208static void aio_grp_feed (aio_req grp)
352{ 209{
353 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) 210 if (grp->sv2 && SvOK (grp->sv2))
354 { 211 {
355 int old_len = grp->size;
356
357 if (grp->sv2 && SvOK (grp->sv2))
358 {
359 dSP; 212 dSP;
360 213
361 ENTER; 214 ENTER;
362 SAVETMPS; 215 SAVETMPS;
363 PUSHMARK (SP); 216 PUSHMARK (SP);
364 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 217 XPUSHs (req_sv (grp, AIO_GRP_KLASS));
365 PUTBACK; 218 PUTBACK;
366 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 219 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
367 SPAGAIN; 220 SPAGAIN;
368 FREETMPS; 221 FREETMPS;
369 LEAVE; 222 LEAVE;
370 }
371
372 /* stop if no progress has been made */
373 if (old_len == grp->size)
374 {
375 SvREFCNT_dec (grp->sv2);
376 grp->sv2 = 0;
377 break;
378 }
379 } 223 }
380} 224}
381 225
382static void aio_grp_dec (aio_req grp) 226static void req_submit (eio_req *req)
383{ 227{
384 --grp->size; 228 eio_submit (req);
385 229
386 /* call feeder, if applicable */ 230 if (expect_false (on_next_submit))
387 aio_grp_feed (grp);
388
389 /* finish, if done */
390 if (!grp->size && grp->int1)
391 { 231 {
392 req_invoke (grp); 232 dSP;
393 req_free (grp); 233 SV *cb = sv_2mortal (on_next_submit);
234
235 on_next_submit = 0;
236
237 PUSHMARK (SP);
238 PUTBACK;
239 call_sv (cb, G_DISCARD | G_EVAL);
394 } 240 }
395} 241}
396 242
397static void req_invoke (aio_req req) 243static int req_invoke (eio_req *req)
398{ 244{
399 dSP; 245 dSP;
400 246
401 if (req->flags & FLAG_SV1_RO_OFF) 247 if (req->flags & FLAG_SV2_RO_OFF)
402 SvREADONLY_off (req->sv1); 248 SvREADONLY_off (req->sv2);
403 249
404 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 250 if (!EIO_CANCELLED (req) && req->callback)
405 { 251 {
406 ENTER; 252 ENTER;
407 SAVETMPS; 253 SAVETMPS;
408 PUSHMARK (SP); 254 PUSHMARK (SP);
409 EXTEND (SP, 1); 255 EXTEND (SP, 1);
410 256
411 switch (req->type) 257 switch (req->type)
412 { 258 {
413 case REQ_READDIR: 259 case EIO_READDIR:
414 { 260 {
415 SV *rv = &PL_sv_undef; 261 SV *rv = &PL_sv_undef;
416 262
417 if (req->result >= 0) 263 if (req->result >= 0)
418 { 264 {
419 int i; 265 int i;
420 char *buf = req->ptr2; 266 char *names = (char *)req->ptr2;
267 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
421 AV *av = newAV (); 268 AV *av = newAV ();
422 269
423 av_extend (av, req->result - 1); 270 av_extend (av, req->result - 1);
424 271
425 for (i = 0; i < req->result; ++i) 272 for (i = 0; i < req->result; ++i)
426 { 273 {
427 SV *sv = newSVpv (buf, 0); 274 if (req->int1 & EIO_READDIR_DENTS)
275 {
276 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
428 277
278 if (req->int1 & EIO_READDIR_CUSTOM2)
279 {
280 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
281 AV *avent = newAV ();
282
283 av_extend (avent, 2);
284
285 if (!sv_type [ent->type])
286 {
287 sv_type [ent->type] = newSViv (ent->type);
288 SvREADONLY_on (sv_type [ent->type]);
289 }
290
291 av_store (avent, 0, namesv);
292 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
293 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
294
295 av_store (av, i, newRV_noinc ((SV *)avent));
296 }
297 else
429 av_store (av, i, sv); 298 av_store (av, i, namesv);
299
300 ++ent;
301 }
302 else
303 {
304 SV *name = newSVpv (names, 0);
305 av_store (av, i, name);
430 buf += SvCUR (sv) + 1; 306 names += SvCUR (name) + 1;
307 }
431 } 308 }
432 309
433 rv = sv_2mortal (newRV_noinc ((SV *)av)); 310 rv = sv_2mortal (newRV_noinc ((SV *)av));
434 } 311 }
435 312
436 PUSHs (rv); 313 PUSHs (rv);
314
315 if (req->int1 & EIO_READDIR_CUSTOM1)
316 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
437 } 317 }
438 break; 318 break;
439 319
440 case REQ_OPEN: 320 case EIO_OPEN:
441 { 321 {
442 /* convert fd to fh */ 322 /* convert fd to fh */
443 SV *fh; 323 SV *fh = &PL_sv_undef;
444 324
445 PUSHs (sv_2mortal (newSViv (req->result))); 325 if (req->result >= 0)
446 PUTBACK; 326 {
447 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 327 GV *gv = (GV *)sv_newmortal ();
448 SPAGAIN; 328 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
329 char sym [64];
330 int symlen;
331
332 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
333 gv_init (gv, stash, sym, symlen, 0);
449 334
450 fh = SvREFCNT_inc (POPs); 335 symlen = snprintf (
336 sym,
337 sizeof (sym),
338 "%s&=%d",
339 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
340 (int)req->result
341 );
451 342
343 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
344 fh = (SV *)gv;
345 }
346
452 PUSHMARK (SP); 347 PUSHs (fh);
453 XPUSHs (sv_2mortal (fh));
454 } 348 }
455 break; 349 break;
456 350
457 case REQ_GROUP: 351 case EIO_GROUP:
458 req->int1 = 2; /* mark group as finished */ 352 req->int1 = 2; /* mark group as finished */
459 353
460 if (req->sv1) 354 if (req->sv1)
461 { 355 {
462 int i; 356 int i;
… …
466 for (i = 0; i <= AvFILL (av); ++i) 360 for (i = 0; i <= AvFILL (av); ++i)
467 PUSHs (*av_fetch (av, i, 0)); 361 PUSHs (*av_fetch (av, i, 0));
468 } 362 }
469 break; 363 break;
470 364
471 case REQ_NOP: 365 case EIO_NOP:
472 case REQ_BUSY: 366 case EIO_BUSY:
473 break; 367 break;
474 368
475 case REQ_READLINK: 369 case EIO_READLINK:
476 if (req->result > 0) 370 if (req->result > 0)
477 { 371 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
478 SvCUR_set (req->sv1, req->result);
479 *SvEND (req->sv1) = 0;
480 PUSHs (req->sv1);
481 }
482 break; 372 break;
483 373
484 case REQ_STAT: 374 case EIO_STAT:
485 case REQ_LSTAT: 375 case EIO_LSTAT:
486 case REQ_FSTAT: 376 case EIO_FSTAT:
487 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 377 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
488 PL_laststatval = req->result; 378 PL_laststatval = req->result;
489 PL_statcache = *(Stat_t *)(req->ptr2); 379 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
490 PUSHs (sv_2mortal (newSViv (req->result))); 380 PUSHs (sv_2mortal (newSViv (req->result)));
491 break; 381 break;
492 382
493 case REQ_READ: 383 case EIO_READ:
384 {
494 SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0)); 385 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
495 *SvEND (req->sv1) = 0; 386 *SvEND (req->sv2) = 0;
387 SvPOK_only (req->sv2);
388 SvSETMAGIC (req->sv2);
496 PUSHs (sv_2mortal (newSViv (req->result))); 389 PUSHs (sv_2mortal (newSViv (req->result)));
390 }
497 break; 391 break;
392
393 case EIO_DUP2:
394 if (req->result > 0)
395 req->result = 0;
396 /* FALLTHROUGH */
498 397
499 default: 398 default:
500 PUSHs (sv_2mortal (newSViv (req->result))); 399 PUSHs (sv_2mortal (newSViv (req->result)));
501 break; 400 break;
502 } 401 }
503 402
504 errno = req->errorno; 403 errno = req->errorno;
505 404
506 PUTBACK; 405 PUTBACK;
507 call_sv (req->callback, G_VOID | G_EVAL); 406 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
508 SPAGAIN; 407 SPAGAIN;
509 408
510 FREETMPS; 409 FREETMPS;
511 LEAVE; 410 LEAVE;
411
412 PUTBACK;
512 } 413 }
513 414
514 if (req->grp) 415 return !!SvTRUE (ERRSV);
515 {
516 aio_req grp = req->grp;
517
518 /* unlink request */
519 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
520 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
521
522 if (grp->grp_first == req)
523 grp->grp_first = req->grp_next;
524
525 aio_grp_dec (grp);
526 }
527
528 if (SvTRUE (ERRSV))
529 {
530 req_free (req);
531 croak (0);
532 }
533} 416}
534 417
535static void req_free (aio_req req) 418static void req_destroy (aio_req req)
536{ 419{
537 if (req->self) 420 if (req->self)
538 { 421 {
539 sv_unmagic (req->self, PERL_MAGIC_ext); 422 sv_unmagic (req->self, PERL_MAGIC_ext);
540 SvREFCNT_dec (req->self); 423 SvREFCNT_dec (req->self);
541 } 424 }
542 425
543 SvREFCNT_dec (req->fh);
544 SvREFCNT_dec (req->sv1); 426 SvREFCNT_dec (req->sv1);
545 SvREFCNT_dec (req->sv2); 427 SvREFCNT_dec (req->sv2);
546 SvREFCNT_dec (req->callback); 428 SvREFCNT_dec (req->callback);
547 429
548 if (req->flags & FLAG_PTR2_FREE)
549 free (req->ptr2);
550
551 Safefree (req); 430 Safefree (req);
552} 431}
553 432
554static void req_cancel_subs (aio_req grp) 433static void req_cancel_subs (aio_req grp)
555{ 434{
556 aio_req sub; 435 aio_req sub;
557 436
558 if (grp->type != REQ_GROUP) 437 if (grp->type != EIO_GROUP)
559 return; 438 return;
560 439
561 SvREFCNT_dec (grp->sv2); 440 SvREFCNT_dec (grp->sv2);
562 grp->sv2 = 0; 441 grp->sv2 = 0;
563 442
564 for (sub = grp->grp_first; sub; sub = sub->grp_next) 443 eio_grp_cancel (grp);
565 req_cancel (sub);
566} 444}
567 445
568static void req_cancel (aio_req req) 446#ifdef USE_SOCKETS_AS_HANDLES
569{ 447# define TO_SOCKET(x) (win32_get_osfhandle (x))
570 req->flags |= FLAG_CANCELLED; 448#else
571 449# define TO_SOCKET(x) (x)
572 req_cancel_subs (req);
573}
574
575static void *aio_proc(void *arg);
576
577static void start_thread (void)
578{
579 sigset_t fullsigset, oldsigset;
580 pthread_attr_t attr;
581
582 worker *wrk = calloc (1, sizeof (worker));
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#ifdef PTHREAD_SCOPE_PROCESS
591 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
592#endif 450#endif
593 451
594 sigfillset (&fullsigset); 452static void
453create_respipe (void)
454{
455 int old_readfd = respipe [0];
595 456
596 LOCK (wrklock); 457 if (respipe [1] >= 0)
597 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset); 458 respipe_close (TO_SOCKET (respipe [1]));
598 459
599 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0) 460#ifdef _WIN32
461 if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
462#else
463 if (pipe (respipe))
464#endif
465 croak ("unable to initialize result pipe");
466
467 if (old_readfd >= 0)
600 { 468 {
601 wrk->prev = &wrk_first; 469 if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
602 wrk->next = wrk_first.next; 470 croak ("unable to initialize result pipe(2)");
603 wrk_first.next->prev = wrk; 471
604 wrk_first.next = wrk; 472 respipe_close (respipe [0]);
605 ++started; 473 respipe [0] = old_readfd;
606 } 474 }
607 else
608 free (wrk);
609 475
610 sigprocmask (SIG_SETMASK, &oldsigset, 0); 476#ifdef _WIN32
611 UNLOCK (wrklock); 477 int arg = 1;
612} 478 if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
479 || ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
480#else
481 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
482 || fcntl (respipe [1], F_SETFL, O_NONBLOCK))
483#endif
484 croak ("unable to initialize result pipe(3)");
613 485
614static void maybe_start_thread () 486 respipe_osf [0] = TO_SOCKET (respipe [0]);
615{ 487 respipe_osf [1] = TO_SOCKET (respipe [1]);
616 if (get_nthreads () >= wanted)
617 return;
618
619 /* todo: maybe use idle here, but might be less exact */
620 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
621 return;
622
623 start_thread ();
624} 488}
625 489
626static void req_send (aio_req req)
627{
628 ++nreqs;
629
630 LOCK (reqlock);
631 ++nready;
632 reqq_push (&req_queue, req);
633 pthread_cond_signal (&reqwait);
634 UNLOCK (reqlock);
635
636 maybe_start_thread ();
637}
638
639static void end_thread (void)
640{
641 aio_req req;
642
643 Newz (0, req, 1, aio_cb);
644
645 req->type = REQ_QUIT;
646 req->pri = PRI_MAX + PRI_BIAS;
647
648 LOCK (reqlock);
649 reqq_push (&req_queue, req);
650 pthread_cond_signal (&reqwait);
651 UNLOCK (reqlock);
652
653 LOCK (wrklock);
654 --started;
655 UNLOCK (wrklock);
656}
657
658static void set_max_idle (int nthreads)
659{
660 if (WORDACCESS_UNSAFE) LOCK (reqlock);
661 max_idle = nthreads <= 0 ? 1 : nthreads;
662 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
663}
664
665static void min_parallel (int nthreads)
666{
667 if (wanted < nthreads)
668 wanted = nthreads;
669}
670
671static void max_parallel (int nthreads)
672{
673 if (wanted > nthreads)
674 wanted = nthreads;
675
676 while (started > wanted)
677 end_thread ();
678}
679
680static void poll_wait () 490static void poll_wait (void)
681{ 491{
682 fd_set rfd; 492 fd_set rfd;
683 493
684 while (nreqs) 494 while (eio_nreqs ())
685 { 495 {
686 int size; 496 int size;
687 if (WORDACCESS_UNSAFE) LOCK (reslock); 497
498 X_LOCK (reslock);
688 size = res_queue.size; 499 size = res_queue.size;
689 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 500 X_UNLOCK (reslock);
690 501
691 if (size) 502 if (size)
692 return; 503 return;
693 504
694 maybe_start_thread (); 505 etp_maybe_start_thread ();
695 506
696 FD_ZERO(&rfd); 507 FD_ZERO (&rfd);
697 FD_SET(respipe [0], &rfd); 508 FD_SET (respipe [0], &rfd);
698 509
699 select (respipe [0] + 1, &rfd, 0, 0, 0); 510 PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
700 } 511 }
701} 512}
702 513
703static int poll_cb () 514static int poll_cb (void)
704{ 515{
705 dSP;
706 int count = 0;
707 int maxreqs = max_poll_reqs;
708 int do_croak = 0;
709 struct timeval tv_start, tv_now;
710 aio_req req;
711
712 if (max_poll_time)
713 gettimeofday (&tv_start, 0);
714
715 for (;;) 516 for (;;)
716 { 517 {
717 for (;;) 518 int res = eio_poll ();
718 {
719 maybe_start_thread ();
720 519
721 LOCK (reslock); 520 if (res > 0)
722 req = reqq_shift (&res_queue);
723
724 if (req)
725 {
726 --npending;
727
728 if (!res_queue.size)
729 {
730 /* read any signals sent by the worker threads */
731 char buf [32];
732 while (read (respipe [0], buf, 32) == 32)
733 ;
734 }
735 }
736
737 UNLOCK (reslock);
738
739 if (!req)
740 break;
741
742 --nreqs;
743
744 if (req->type == REQ_GROUP && req->size)
745 {
746 req->int1 = 1; /* mark request as delayed */
747 continue;
748 }
749 else
750 {
751 req_invoke (req);
752
753 count++;
754 }
755
756 req_free (req);
757
758 if (maxreqs && !--maxreqs)
759 break;
760
761 if (max_poll_time)
762 {
763 gettimeofday (&tv_now, 0);
764
765 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
766 break;
767 }
768 }
769
770 if (nreqs <= max_outstanding)
771 break; 521 croak (0);
522
523 if (!max_outstanding || max_outstanding > eio_nreqs ())
524 return res;
772 525
773 poll_wait (); 526 poll_wait ();
774
775 ++maxreqs;
776 } 527 }
777
778 return count;
779}
780
781static void create_pipe ()
782{
783 if (pipe (respipe))
784 croak ("unable to initialize result pipe");
785
786 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
787 croak ("cannot set result pipe to nonblocking mode");
788
789 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
790 croak ("cannot set result pipe to nonblocking mode");
791}
792
793/*****************************************************************************/
794/* work around various missing functions */
795
796#if !HAVE_PREADWRITE
797# define pread aio_pread
798# define pwrite aio_pwrite
799
800/*
801 * make our pread/pwrite safe against themselves, but not against
802 * normal read/write by using a mutex. slows down execution a lot,
803 * but that's your problem, not mine.
804 */
805static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
806
807static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
808{
809 ssize_t res;
810 off_t ooffset;
811
812 LOCK (preadwritelock);
813 ooffset = lseek (fd, 0, SEEK_CUR);
814 lseek (fd, offset, SEEK_SET);
815 res = read (fd, buf, count);
816 lseek (fd, ooffset, SEEK_SET);
817 UNLOCK (preadwritelock);
818
819 return res;
820}
821
822static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
823{
824 ssize_t res;
825 off_t ooffset;
826
827 LOCK (preadwritelock);
828 ooffset = lseek (fd, 0, SEEK_CUR);
829 lseek (fd, offset, SEEK_SET);
830 res = write (fd, buf, count);
831 lseek (fd, offset, SEEK_SET);
832 UNLOCK (preadwritelock);
833
834 return res;
835}
836#endif
837
838#if !HAVE_FDATASYNC
839# define fdatasync fsync
840#endif
841
842#if !HAVE_READAHEAD
843# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
844
845static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
846{
847 dBUF;
848
849 while (count > 0)
850 {
851 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
852
853 pread (fd, aio_buf, len, offset);
854 offset += len;
855 count -= len;
856 }
857
858 errno = 0;
859}
860
861#endif
862
863#if !HAVE_READDIR_R
864# define readdir_r aio_readdir_r
865
866static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
867
868static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
869{
870 struct dirent *e;
871 int errorno;
872
873 LOCK (readdirlock);
874
875 e = readdir (dirp);
876 errorno = errno;
877
878 if (e)
879 {
880 *res = ent;
881 strcpy (ent->d_name, e->d_name);
882 }
883 else
884 *res = 0;
885
886 UNLOCK (readdirlock);
887
888 errno = errorno;
889 return e ? 0 : -1;
890}
891#endif
892
893/* sendfile always needs emulation */
894static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
895{
896 ssize_t res;
897
898 if (!count)
899 return 0;
900
901#if HAVE_SENDFILE
902# if __linux
903 res = sendfile (ofd, ifd, &offset, count);
904
905# elif __freebsd
906 /*
907 * Of course, the freebsd sendfile is a dire hack with no thoughts
908 * wasted on making it similar to other I/O functions.
909 */
910 {
911 off_t sbytes;
912 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
913
914 if (res < 0 && sbytes)
915 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
916 res = sbytes;
917 }
918
919# elif __hpux
920 res = sendfile (ofd, ifd, offset, count, 0, 0);
921
922# elif __solaris
923 {
924 struct sendfilevec vec;
925 size_t sbytes;
926
927 vec.sfv_fd = ifd;
928 vec.sfv_flag = 0;
929 vec.sfv_off = offset;
930 vec.sfv_len = count;
931
932 res = sendfilev (ofd, &vec, 1, &sbytes);
933
934 if (res < 0 && sbytes)
935 res = sbytes;
936 }
937
938# endif
939#else
940 res = -1;
941 errno = ENOSYS;
942#endif
943
944 if (res < 0
945 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
946#if __solaris
947 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
948#endif
949 )
950 )
951 {
952 /* emulate sendfile. this is a major pain in the ass */
953 dBUF;
954
955 res = 0;
956
957 while (count)
958 {
959 ssize_t cnt;
960
961 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
962
963 if (cnt <= 0)
964 {
965 if (cnt && !res) res = -1;
966 break;
967 }
968
969 cnt = write (ofd, aio_buf, cnt);
970
971 if (cnt <= 0)
972 {
973 if (cnt && !res) res = -1;
974 break;
975 }
976
977 offset += cnt;
978 res += cnt;
979 count -= cnt;
980 }
981 }
982
983 return res;
984}
985
986/* read a full directory */
987static void scandir_ (aio_req req, worker *self)
988{
989 DIR *dirp;
990 union
991 {
992 struct dirent d;
993 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
994 } *u;
995 struct dirent *entp;
996 char *name, *names;
997 int memlen = 4096;
998 int memofs = 0;
999 int res = 0;
1000 int errorno;
1001
1002 LOCK (wrklock);
1003 self->dirp = dirp = opendir (req->ptr1);
1004 self->dbuf = u = malloc (sizeof (*u));
1005 req->flags |= FLAG_PTR2_FREE;
1006 req->ptr2 = names = malloc (memlen);
1007 UNLOCK (wrklock);
1008
1009 if (dirp && u && names)
1010 for (;;)
1011 {
1012 errno = 0;
1013 readdir_r (dirp, &u->d, &entp);
1014
1015 if (!entp)
1016 break;
1017
1018 name = entp->d_name;
1019
1020 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1021 {
1022 int len = strlen (name) + 1;
1023
1024 res++;
1025
1026 while (memofs + len > memlen)
1027 {
1028 memlen *= 2;
1029 LOCK (wrklock);
1030 req->ptr2 = names = realloc (names, memlen);
1031 UNLOCK (wrklock);
1032
1033 if (!names)
1034 break;
1035 }
1036
1037 memcpy (names + memofs, name, len);
1038 memofs += len;
1039 }
1040 }
1041
1042 if (errno)
1043 res = -1;
1044
1045 req->result = res;
1046}
1047
1048/*****************************************************************************/
1049
1050static void *aio_proc (void *thr_arg)
1051{
1052 aio_req req;
1053 struct timespec ts;
1054 worker *self = (worker *)thr_arg;
1055
1056 /* try to distribute timeouts somewhat evenly */
1057 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1058 * (1000000000UL / 1024UL);
1059
1060 for (;;)
1061 {
1062 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1063
1064 LOCK (reqlock);
1065
1066 for (;;)
1067 {
1068 self->req = req = reqq_shift (&req_queue);
1069
1070 if (req)
1071 break;
1072
1073 ++idle;
1074
1075 if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)
1076 == ETIMEDOUT)
1077 {
1078 if (idle > max_idle)
1079 {
1080 --idle;
1081 UNLOCK (reqlock);
1082 LOCK (wrklock);
1083 --started;
1084 UNLOCK (wrklock);
1085 goto quit;
1086 }
1087
1088 /* we are allowed to idle, so do so without any timeout */
1089 pthread_cond_wait (&reqwait, &reqlock);
1090 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1091 }
1092
1093 --idle;
1094 }
1095
1096 --nready;
1097
1098 UNLOCK (reqlock);
1099
1100 errno = 0; /* strictly unnecessary */
1101
1102 if (!(req->flags & FLAG_CANCELLED))
1103 switch (req->type)
1104 {
1105 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1106 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1107
1108 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1109 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1110
1111 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1112 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1113 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1114
1115 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1116 case REQ_CLOSE: req->result = close (req->int1); break;
1117 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1118 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1119 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1120 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1121 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1122 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1123 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1124
1125 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1126 case REQ_FSYNC: req->result = fsync (req->int1); break;
1127 case REQ_READDIR: scandir_ (req, self); break;
1128
1129 case REQ_BUSY:
1130 {
1131 struct timeval tv;
1132
1133 tv.tv_sec = req->int1;
1134 tv.tv_usec = req->int2;
1135
1136 req->result = select (0, 0, 0, 0, &tv);
1137 }
1138
1139 case REQ_GROUP:
1140 case REQ_NOP:
1141 break;
1142
1143 case REQ_QUIT:
1144 goto quit;
1145
1146 default:
1147 req->result = ENOSYS;
1148 break;
1149 }
1150
1151 req->errorno = errno;
1152
1153 LOCK (reslock);
1154
1155 ++npending;
1156
1157 if (!reqq_push (&res_queue, req))
1158 /* write a dummy byte to the pipe so fh becomes ready */
1159 write (respipe [1], &respipe, 1);
1160
1161 self->req = 0;
1162 worker_clear (self);
1163
1164 UNLOCK (reslock);
1165 }
1166
1167quit:
1168 LOCK (wrklock);
1169 worker_free (self);
1170 UNLOCK (wrklock);
1171
1172 return 0;
1173}
1174
1175/*****************************************************************************/
1176
1177static void atfork_prepare (void)
1178{
1179 LOCK (wrklock);
1180 LOCK (reqlock);
1181 LOCK (reslock);
1182#if !HAVE_PREADWRITE
1183 LOCK (preadwritelock);
1184#endif
1185#if !HAVE_READDIR_R
1186 LOCK (readdirlock);
1187#endif
1188}
1189
1190static void atfork_parent (void)
1191{
1192#if !HAVE_READDIR_R
1193 UNLOCK (readdirlock);
1194#endif
1195#if !HAVE_PREADWRITE
1196 UNLOCK (preadwritelock);
1197#endif
1198 UNLOCK (reslock);
1199 UNLOCK (reqlock);
1200 UNLOCK (wrklock);
1201} 528}
1202 529
1203static void atfork_child (void) 530static void atfork_child (void)
1204{ 531{
1205 aio_req prv;
1206
1207 while (prv = reqq_shift (&req_queue))
1208 req_free (prv);
1209
1210 while (prv = reqq_shift (&res_queue))
1211 req_free (prv);
1212
1213 while (wrk_first.next != &wrk_first)
1214 {
1215 worker *wrk = wrk_first.next;
1216
1217 if (wrk->req)
1218 req_free (wrk->req);
1219
1220 worker_clear (wrk);
1221 worker_free (wrk);
1222 }
1223
1224 started = 0;
1225 idle = 0;
1226 nreqs = 0;
1227 nready = 0;
1228 npending = 0;
1229
1230 close (respipe [0]);
1231 close (respipe [1]);
1232 create_pipe (); 532 create_respipe ();
533}
1233 534
1234 atfork_parent (); 535static SV *
536get_cb (SV *cb_sv)
537{
538 SvGETMAGIC (cb_sv);
539 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
1235} 540}
1236 541
1237#define dREQ \ 542#define dREQ \
543 SV *cb_cv; \
1238 aio_req req; \ 544 aio_req req; \
1239 int req_pri = next_pri; \ 545 int req_pri = next_pri; \
1240 next_pri = DEFAULT_PRI + PRI_BIAS; \ 546 next_pri = EIO_PRI_DEFAULT; \
1241 \ 547 \
1242 if (SvOK (callback) && !SvROK (callback)) \ 548 cb_cv = get_cb (callback); \
1243 croak ("callback must be undef or of reference type"); \
1244 \ 549 \
1245 Newz (0, req, 1, aio_cb); \ 550 Newz (0, req, 1, eio_req); \
1246 if (!req) \ 551 if (!req) \
1247 croak ("out of memory during aio_req allocation"); \ 552 croak ("out of memory during eio_req allocation"); \
1248 \ 553 \
1249 req->callback = newSVsv (callback); \ 554 req->callback = SvREFCNT_inc (cb_cv); \
1250 req->pri = req_pri 555 req->pri = req_pri
1251 556
1252#define REQ_SEND \ 557#define REQ_SEND \
558 PUTBACK; \
1253 req_send (req); \ 559 req_submit (req); \
560 SPAGAIN; \
1254 \ 561 \
1255 if (GIMME_V != G_VOID) \ 562 if (GIMME_V != G_VOID) \
1256 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 563 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1257 564
1258MODULE = IO::AIO PACKAGE = IO::AIO 565MODULE = IO::AIO PACKAGE = IO::AIO
1259 566
1260PROTOTYPES: ENABLE 567PROTOTYPES: ENABLE
1261 568
1262BOOT: 569BOOT:
1263{ 570{
571 static const struct {
572 const char *name;
573 IV iv;
574 } *civ, const_iv[] = {
575# define const_iv(name, value) { # name, (IV) value },
576# define const_eio(name) { # name, (IV) EIO_ ## name },
577 const_iv (EXDEV , EXDEV)
578 const_iv (ENOSYS , ENOSYS)
579 const_iv (O_RDONLY, O_RDONLY)
580 const_iv (O_WRONLY, O_WRONLY)
581 const_iv (O_CREAT , O_CREAT)
582 const_iv (O_TRUNC , O_TRUNC)
583#ifndef _WIN32
584 const_iv (S_IFIFO , S_IFIFO)
585#endif
586 const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)
587 const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
588 const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)
589 const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
590 const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
591 const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
592
593 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
594 const_eio (SYNC_FILE_RANGE_WRITE)
595 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
596
597 const_eio (READDIR_DENTS)
598 const_eio (READDIR_DIRS_FIRST)
599 const_eio (READDIR_STAT_ORDER)
600 const_eio (READDIR_FOUND_UNKNOWN)
601
602 const_eio (DT_UNKNOWN)
603 const_eio (DT_FIFO)
604 const_eio (DT_CHR)
605 const_eio (DT_DIR)
606 const_eio (DT_BLK)
607 const_eio (DT_REG)
608 const_eio (DT_LNK)
609 const_eio (DT_SOCK)
610 const_eio (DT_WHT)
611 };
612
1264 HV *stash = gv_stashpv ("IO::AIO", 1); 613 stash = gv_stashpv ("IO::AIO", 1);
1265 614
1266 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 615 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
1267 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 616 newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
1268 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1269 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1270 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1271 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1272 617
1273 create_pipe (); 618 create_respipe ();
1274 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 619
620 if (eio_init (want_poll, done_poll) < 0)
621 croak ("IO::AIO: unable to initialise eio library");
622
623 /* atfork child called in fifo order, so before eio's handler */
624 X_THREAD_ATFORK (0, 0, atfork_child);
1275} 625}
1276 626
1277void 627void
1278max_poll_reqs (int nreqs) 628max_poll_reqs (int nreqs)
1279 PROTOTYPE: $ 629 PROTOTYPE: $
1280 CODE: 630 CODE:
1281 max_poll_reqs = nreqs; 631 eio_set_max_poll_reqs (nreqs);
1282 632
1283void 633void
1284max_poll_time (double nseconds) 634max_poll_time (double nseconds)
1285 PROTOTYPE: $ 635 PROTOTYPE: $
1286 CODE: 636 CODE:
1287 max_poll_time = nseconds * AIO_TICKS; 637 eio_set_max_poll_time (nseconds);
1288 638
1289void 639void
1290min_parallel (int nthreads) 640min_parallel (int nthreads)
1291 PROTOTYPE: $ 641 PROTOTYPE: $
642 CODE:
643 eio_set_min_parallel (nthreads);
1292 644
1293void 645void
1294max_parallel (int nthreads) 646max_parallel (int nthreads)
1295 PROTOTYPE: $ 647 PROTOTYPE: $
648 CODE:
649 eio_set_max_parallel (nthreads);
1296 650
1297void 651void
1298max_idle (int nthreads) 652max_idle (int nthreads)
1299 PROTOTYPE: $ 653 PROTOTYPE: $
1300 CODE: 654 CODE:
1301 set_max_idle (nthreads); 655 eio_set_max_idle (nthreads);
1302 656
1303int 657void
1304max_outstanding (int maxreqs) 658max_outstanding (int maxreqs)
1305 PROTOTYPE: $ 659 PROTOTYPE: $
1306 CODE: 660 CODE:
1307 RETVAL = max_outstanding;
1308 max_outstanding = maxreqs; 661 max_outstanding = maxreqs;
1309 OUTPUT:
1310 RETVAL
1311 662
1312void 663void
1313aio_open (pathname,flags,mode,callback=&PL_sv_undef) 664aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1314 SV * pathname
1315 int flags
1316 int mode
1317 SV * callback
1318 PROTOTYPE: $$$;$ 665 PROTOTYPE: $$$;$
1319 PPCODE: 666 PPCODE:
1320{ 667{
1321 dREQ; 668 dREQ;
1322 669
1323 req->type = REQ_OPEN; 670 req->type = EIO_OPEN;
1324 req->sv1 = newSVsv (pathname); 671 req->sv1 = newSVsv (pathname);
1325 req->ptr1 = SvPVbyte_nolen (pathname); 672 req->ptr1 = SvPVbyte_nolen (req->sv1);
1326 req->int1 = flags; 673 req->int1 = flags;
1327 req->mode = mode; 674 req->int2 = mode;
1328 675
1329 REQ_SEND; 676 REQ_SEND;
1330} 677}
1331 678
1332void 679void
1333aio_close (fh,callback=&PL_sv_undef) 680aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1334 SV * fh
1335 SV * callback
1336 PROTOTYPE: $;$ 681 PROTOTYPE: $;$
1337 ALIAS: 682 ALIAS:
1338 aio_close = REQ_CLOSE
1339 aio_fsync = REQ_FSYNC 683 aio_fsync = EIO_FSYNC
1340 aio_fdatasync = REQ_FDATASYNC 684 aio_fdatasync = EIO_FDATASYNC
1341 PPCODE: 685 PPCODE:
1342{ 686{
687 int fd = s_fileno_croak (fh, 0);
1343 dREQ; 688 dREQ;
1344 689
1345 req->type = ix; 690 req->type = ix;
1346 req->fh = newSVsv (fh); 691 req->sv1 = newSVsv (fh);
1347 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 692 req->int1 = fd;
1348 693
1349 REQ_SEND (req); 694 REQ_SEND (req);
1350} 695}
1351 696
1352void 697void
698aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
699 PROTOTYPE: $$$$;$
700 PPCODE:
701{
702 int fd = s_fileno_croak (fh, 0);
703 dREQ;
704
705 req->type = EIO_SYNC_FILE_RANGE;
706 req->sv1 = newSVsv (fh);
707 req->int1 = fd;
708 req->offs = offset;
709 req->size = nbytes;
710 req->int2 = flags;
711
712 REQ_SEND (req);
713}
714
715void
716aio_close (SV *fh, SV *callback=&PL_sv_undef)
717 PROTOTYPE: $;$
718 PPCODE:
719{
720 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
721 int fd = s_fileno_croak (fh, 0);
722 dREQ;
723
724 if (close_pipe < 0)
725 {
726 int pipefd [2];
727
728 if (pipe (pipefd) < 0
729 || close (pipefd [1]) < 0
730 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
731 abort (); /*D*/
732
733 close_pipe = pipefd [0];
734 }
735
736 req->type = EIO_DUP2;
737 req->int1 = close_pipe;
738 req->sv2 = newSVsv (fh);
739 req->int2 = fd;
740
741 REQ_SEND (req);
742}
743
744void
1353aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 745aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1354 SV * fh
1355 UV offset
1356 UV length
1357 SV * data
1358 UV dataoffset
1359 SV * callback
1360 ALIAS: 746 ALIAS:
1361 aio_read = REQ_READ 747 aio_read = EIO_READ
1362 aio_write = REQ_WRITE 748 aio_write = EIO_WRITE
1363 PROTOTYPE: $$$$$;$ 749 PROTOTYPE: $$$$$;$
1364 PPCODE: 750 PPCODE:
1365{ 751{
1366 STRLEN svlen; 752 STRLEN svlen;
753 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1367 char *svptr = SvPVbyte (data, svlen); 754 char *svptr = SvPVbyte (data, svlen);
1368 755 UV len = SvUV (length);
1369 SvUPGRADE (data, SVt_PV);
1370 SvPOK_on (data);
1371 756
1372 if (dataoffset < 0) 757 if (dataoffset < 0)
1373 dataoffset += svlen; 758 dataoffset += svlen;
1374 759
1375 if (dataoffset < 0 || dataoffset > svlen) 760 if (dataoffset < 0 || dataoffset > svlen)
1376 croak ("data offset outside of string"); 761 croak ("dataoffset outside of data scalar");
1377 762
1378 if (ix == REQ_WRITE) 763 if (ix == EIO_WRITE)
1379 { 764 {
1380 /* write: check length and adjust. */ 765 /* write: check length and adjust. */
1381 if (length < 0 || length + dataoffset > svlen) 766 if (!SvOK (length) || len + dataoffset > svlen)
1382 length = svlen - dataoffset; 767 len = svlen - dataoffset;
1383 } 768 }
1384 else 769 else
1385 { 770 {
1386 /* read: grow scalar as necessary */ 771 /* read: check type and grow scalar as necessary */
772 SvUPGRADE (data, SVt_PV);
1387 svptr = SvGROW (data, length + dataoffset); 773 svptr = SvGROW (data, len + dataoffset + 1);
1388 } 774 }
1389
1390 if (length < 0)
1391 croak ("length must not be negative");
1392 775
1393 { 776 {
1394 dREQ; 777 dREQ;
1395 778
1396 req->type = ix; 779 req->type = ix;
1397 req->fh = newSVsv (fh); 780 req->sv1 = newSVsv (fh);
1398 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 781 req->int1 = fd;
1399 : IoOFP (sv_2io (fh))); 782 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1400 req->offs = offset;
1401 req->size = length; 783 req->size = len;
1402 req->sv1 = SvREFCNT_inc (data); 784 req->sv2 = SvREFCNT_inc (data);
1403 req->ptr1 = (char *)svptr + dataoffset; 785 req->ptr2 = (char *)svptr + dataoffset;
1404 req->stroffset = dataoffset; 786 req->stroffset = dataoffset;
1405 787
1406 if (!SvREADONLY (data)) 788 if (!SvREADONLY (data))
1407 { 789 {
1408 SvREADONLY_on (data); 790 SvREADONLY_on (data);
1409 req->flags |= FLAG_SV1_RO_OFF; 791 req->flags |= FLAG_SV2_RO_OFF;
1410 } 792 }
1411 793
1412 REQ_SEND; 794 REQ_SEND;
1413 } 795 }
1414} 796}
1415 797
1416void 798void
1417aio_readlink (path,callback=&PL_sv_undef) 799aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
1418 SV * path
1419 SV * callback
1420 PROTOTYPE: $$;$ 800 PROTOTYPE: $$;$
1421 PPCODE: 801 PPCODE:
1422{ 802{
1423 SV *data; 803 SV *data;
1424 dREQ; 804 dREQ;
1425 805
1426 data = newSV (NAME_MAX);
1427 SvPOK_on (data);
1428
1429 req->type = REQ_READLINK; 806 req->type = EIO_READLINK;
1430 req->fh = newSVsv (path); 807 req->sv1 = newSVsv (path);
1431 req->ptr2 = SvPVbyte_nolen (path);
1432 req->sv1 = data;
1433 req->ptr1 = SvPVbyte_nolen (data); 808 req->ptr1 = SvPVbyte_nolen (req->sv1);
1434 809
1435 REQ_SEND; 810 REQ_SEND;
1436} 811}
1437 812
1438void 813void
1439aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 814aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1440 SV * out_fh
1441 SV * in_fh
1442 UV in_offset
1443 UV length
1444 SV * callback
1445 PROTOTYPE: $$$$;$ 815 PROTOTYPE: $$$$;$
1446 PPCODE: 816 PPCODE:
1447{ 817{
818 int ifd = s_fileno_croak (in_fh , 0);
819 int ofd = s_fileno_croak (out_fh, 1);
1448 dREQ; 820 dREQ;
1449 821
1450 req->type = REQ_SENDFILE; 822 req->type = EIO_SENDFILE;
1451 req->fh = newSVsv (out_fh); 823 req->sv1 = newSVsv (out_fh);
1452 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 824 req->int1 = ofd;
1453 req->sv2 = newSVsv (in_fh); 825 req->sv2 = newSVsv (in_fh);
1454 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 826 req->int2 = ifd;
1455 req->offs = in_offset; 827 req->offs = in_offset;
1456 req->size = length; 828 req->size = length;
1457 829
1458 REQ_SEND; 830 REQ_SEND;
1459} 831}
1460 832
1461void 833void
1462aio_readahead (fh,offset,length,callback=&PL_sv_undef) 834aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1463 SV * fh
1464 UV offset
1465 IV length
1466 SV * callback
1467 PROTOTYPE: $$$;$ 835 PROTOTYPE: $$$;$
1468 PPCODE: 836 PPCODE:
1469{ 837{
838 int fd = s_fileno_croak (fh, 0);
1470 dREQ; 839 dREQ;
1471 840
1472 req->type = REQ_READAHEAD; 841 req->type = EIO_READAHEAD;
1473 req->fh = newSVsv (fh); 842 req->sv1 = newSVsv (fh);
1474 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 843 req->int1 = fd;
1475 req->offs = offset; 844 req->offs = offset;
1476 req->size = length; 845 req->size = length;
1477 846
1478 REQ_SEND; 847 REQ_SEND;
1479} 848}
1480 849
1481void 850void
1482aio_stat (fh_or_path,callback=&PL_sv_undef) 851aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1483 SV * fh_or_path
1484 SV * callback
1485 ALIAS: 852 ALIAS:
1486 aio_stat = REQ_STAT 853 aio_stat = EIO_STAT
1487 aio_lstat = REQ_LSTAT 854 aio_lstat = EIO_LSTAT
1488 PPCODE: 855 PPCODE:
1489{ 856{
1490 dREQ; 857 dREQ;
1491 858
1492 req->ptr2 = malloc (sizeof (Stat_t)); 859 req->sv1 = newSVsv (fh_or_path);
1493 if (!req->ptr2)
1494 {
1495 req_free (req);
1496 croak ("out of memory during aio_stat statdata allocation");
1497 }
1498 860
1499 req->flags |= FLAG_PTR2_FREE; 861 if (SvPOK (req->sv1))
1500
1501 if (SvPOK (fh_or_path))
1502 { 862 {
1503 req->type = ix; 863 req->type = ix;
1504 req->sv1 = newSVsv (fh_or_path);
1505 req->ptr1 = SvPVbyte_nolen (fh_or_path); 864 req->ptr1 = SvPVbyte_nolen (req->sv1);
1506 } 865 }
1507 else 866 else
1508 { 867 {
1509 req->type = REQ_FSTAT; 868 req->type = EIO_FSTAT;
1510 req->fh = newSVsv (fh_or_path);
1511 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 869 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1512 } 870 }
1513 871
1514 REQ_SEND; 872 REQ_SEND;
1515} 873}
1516 874
1517void 875void
876aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
877 PPCODE:
878{
879 dREQ;
880
881 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
882 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
883 req->sv1 = newSVsv (fh_or_path);
884
885 if (SvPOK (req->sv1))
886 {
887 req->type = EIO_UTIME;
888 req->ptr1 = SvPVbyte_nolen (req->sv1);
889 }
890 else
891 {
892 req->type = EIO_FUTIME;
893 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
894 }
895
896 REQ_SEND;
897}
898
899void
900aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
901 PPCODE:
902{
903 dREQ;
904
905 req->sv1 = newSVsv (fh_or_path);
906 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
907
908 if (SvPOK (req->sv1))
909 {
910 req->type = EIO_TRUNCATE;
911 req->ptr1 = SvPVbyte_nolen (req->sv1);
912 }
913 else
914 {
915 req->type = EIO_FTRUNCATE;
916 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
917 }
918
919 REQ_SEND;
920}
921
922void
923aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
924 ALIAS:
925 aio_chmod = EIO_CHMOD
926 aio_mkdir = EIO_MKDIR
927 PPCODE:
928{
929 dREQ;
930
931 req->int2 = mode;
932 req->sv1 = newSVsv (fh_or_path);
933
934 if (SvPOK (req->sv1))
935 {
936 req->type = ix;
937 req->ptr1 = SvPVbyte_nolen (req->sv1);
938 }
939 else
940 {
941 req->type = EIO_FCHMOD;
942 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
943 }
944
945 REQ_SEND;
946}
947
948void
949aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
950 PPCODE:
951{
952 dREQ;
953
954 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
955 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
956 req->sv1 = newSVsv (fh_or_path);
957
958 if (SvPOK (req->sv1))
959 {
960 req->type = EIO_CHOWN;
961 req->ptr1 = SvPVbyte_nolen (req->sv1);
962 }
963 else
964 {
965 req->type = EIO_FCHOWN;
966 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
967 }
968
969 REQ_SEND;
970}
971
972void
973aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
974 PPCODE:
975{
976 dREQ;
977
978 req->type = EIO_READDIR;
979 req->sv1 = newSVsv (pathname);
980 req->ptr1 = SvPVbyte_nolen (req->sv1);
981 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
982
983 if (flags & EIO_READDIR_DENTS)
984 req->int1 |= EIO_READDIR_CUSTOM2;
985
986 REQ_SEND;
987}
988
989void
1518aio_unlink (pathname,callback=&PL_sv_undef) 990aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1519 SV * pathname
1520 SV * callback
1521 ALIAS: 991 ALIAS:
1522 aio_unlink = REQ_UNLINK 992 aio_unlink = EIO_UNLINK
1523 aio_rmdir = REQ_RMDIR 993 aio_rmdir = EIO_RMDIR
1524 aio_readdir = REQ_READDIR 994 aio_readdir = EIO_READDIR
1525 PPCODE: 995 PPCODE:
1526{ 996{
1527 dREQ; 997 dREQ;
1528 998
1529 req->type = ix; 999 req->type = ix;
1530 req->sv1 = newSVsv (pathname); 1000 req->sv1 = newSVsv (pathname);
1531 req->ptr1 = SvPVbyte_nolen (pathname); 1001 req->ptr1 = SvPVbyte_nolen (req->sv1);
1532 1002
1533 REQ_SEND; 1003 REQ_SEND;
1534} 1004}
1535 1005
1536void 1006void
1537aio_link (oldpath,newpath,callback=&PL_sv_undef) 1007aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1538 SV * oldpath
1539 SV * newpath
1540 SV * callback
1541 ALIAS: 1008 ALIAS:
1542 aio_link = REQ_LINK 1009 aio_link = EIO_LINK
1543 aio_symlink = REQ_SYMLINK 1010 aio_symlink = EIO_SYMLINK
1544 aio_rename = REQ_RENAME 1011 aio_rename = EIO_RENAME
1545 PPCODE: 1012 PPCODE:
1546{ 1013{
1547 dREQ; 1014 dREQ;
1548 1015
1549 req->type = ix; 1016 req->type = ix;
1550 req->fh = newSVsv (oldpath); 1017 req->sv1 = newSVsv (oldpath);
1551 req->ptr2 = SvPVbyte_nolen (req->fh); 1018 req->ptr1 = SvPVbyte_nolen (req->sv1);
1552 req->sv1 = newSVsv (newpath); 1019 req->sv2 = newSVsv (newpath);
1553 req->ptr1 = SvPVbyte_nolen (newpath); 1020 req->ptr2 = SvPVbyte_nolen (req->sv2);
1554 1021
1555 REQ_SEND; 1022 REQ_SEND;
1556} 1023}
1557 1024
1558void 1025void
1559aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1026aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1560 SV * pathname
1561 SV * callback
1562 UV mode
1563 UV dev
1564 PPCODE: 1027 PPCODE:
1565{ 1028{
1566 dREQ; 1029 dREQ;
1567 1030
1568 req->type = REQ_MKNOD; 1031 req->type = EIO_MKNOD;
1569 req->sv1 = newSVsv (pathname); 1032 req->sv1 = newSVsv (pathname);
1570 req->ptr1 = SvPVbyte_nolen (pathname); 1033 req->ptr1 = SvPVbyte_nolen (req->sv1);
1571 req->mode = (mode_t)mode; 1034 req->int2 = (mode_t)mode;
1572 req->offs = dev; 1035 req->offs = dev;
1573 1036
1574 REQ_SEND; 1037 REQ_SEND;
1575} 1038}
1576 1039
1577void 1040void
1578aio_busy (delay,callback=&PL_sv_undef) 1041aio_busy (double delay, SV *callback=&PL_sv_undef)
1579 double delay
1580 SV * callback
1581 PPCODE: 1042 PPCODE:
1582{ 1043{
1583 dREQ; 1044 dREQ;
1584 1045
1585 req->type = REQ_BUSY; 1046 req->type = EIO_BUSY;
1586 req->int1 = delay < 0. ? 0 : delay; 1047 req->nv1 = delay < 0. ? 0. : delay;
1587 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1);
1588 1048
1589 REQ_SEND; 1049 REQ_SEND;
1590} 1050}
1591 1051
1592void 1052void
1593aio_group (callback=&PL_sv_undef) 1053aio_group (SV *callback=&PL_sv_undef)
1594 SV * callback
1595 PROTOTYPE: ;$ 1054 PROTOTYPE: ;$
1596 PPCODE: 1055 PPCODE:
1597{ 1056{
1598 dREQ; 1057 dREQ;
1599 1058
1600 req->type = REQ_GROUP; 1059 req->type = EIO_GROUP;
1601 1060
1602 req_send (req); 1061 req_submit (req);
1603 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1062 XPUSHs (req_sv (req, AIO_GRP_KLASS));
1604} 1063}
1605 1064
1606void 1065void
1607aio_nop (callback=&PL_sv_undef) 1066aio_nop (SV *callback=&PL_sv_undef)
1608 SV * callback 1067 ALIAS:
1068 aio_nop = EIO_NOP
1069 aio_sync = EIO_SYNC
1609 PPCODE: 1070 PPCODE:
1610{ 1071{
1611 dREQ; 1072 dREQ;
1612 1073
1613 req->type = REQ_NOP; 1074 req->type = ix;
1614 1075
1615 REQ_SEND; 1076 REQ_SEND;
1616} 1077}
1617 1078
1618int 1079int
1619aioreq_pri (int pri = 0) 1080aioreq_pri (int pri = 0)
1620 PROTOTYPE: ;$ 1081 PROTOTYPE: ;$
1621 CODE: 1082 CODE:
1622 RETVAL = next_pri - PRI_BIAS; 1083 RETVAL = next_pri;
1623 if (items > 0) 1084 if (items > 0)
1624 { 1085 {
1625 if (pri < PRI_MIN) pri = PRI_MIN; 1086 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1626 if (pri > PRI_MAX) pri = PRI_MAX; 1087 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1627 next_pri = pri + PRI_BIAS; 1088 next_pri = pri;
1628 } 1089 }
1629 OUTPUT: 1090 OUTPUT:
1630 RETVAL 1091 RETVAL
1631 1092
1632void 1093void
1633aioreq_nice (int nice = 0) 1094aioreq_nice (int nice = 0)
1634 CODE: 1095 CODE:
1635 nice = next_pri - nice; 1096 nice = next_pri - nice;
1636 if (nice < PRI_MIN) nice = PRI_MIN; 1097 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1637 if (nice > PRI_MAX) nice = PRI_MAX; 1098 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1638 next_pri = nice + PRI_BIAS; 1099 next_pri = nice;
1639 1100
1640void 1101void
1641flush () 1102flush ()
1642 PROTOTYPE: 1103 PROTOTYPE:
1643 CODE: 1104 CODE:
1644 while (nreqs) 1105 while (eio_nreqs ())
1645 { 1106 {
1646 poll_wait (); 1107 poll_wait ();
1647 poll_cb (0); 1108 poll_cb ();
1648 } 1109 }
1649 1110
1650void 1111int
1651poll() 1112poll()
1652 PROTOTYPE: 1113 PROTOTYPE:
1653 CODE: 1114 CODE:
1654 if (nreqs)
1655 {
1656 poll_wait (); 1115 poll_wait ();
1657 poll_cb (0); 1116 RETVAL = poll_cb ();
1658 } 1117 OUTPUT:
1118 RETVAL
1659 1119
1660int 1120int
1661poll_fileno() 1121poll_fileno()
1662 PROTOTYPE: 1122 PROTOTYPE:
1663 CODE: 1123 CODE:
… …
1675 1135
1676void 1136void
1677poll_wait() 1137poll_wait()
1678 PROTOTYPE: 1138 PROTOTYPE:
1679 CODE: 1139 CODE:
1680 if (nreqs)
1681 poll_wait (); 1140 poll_wait ();
1682 1141
1683int 1142int
1684nreqs() 1143nreqs()
1685 PROTOTYPE: 1144 PROTOTYPE:
1686 CODE: 1145 CODE:
1687 RETVAL = nreqs; 1146 RETVAL = eio_nreqs ();
1688 OUTPUT: 1147 OUTPUT:
1689 RETVAL 1148 RETVAL
1690 1149
1691int 1150int
1692nready() 1151nready()
1693 PROTOTYPE: 1152 PROTOTYPE:
1694 CODE: 1153 CODE:
1695 RETVAL = get_nready (); 1154 RETVAL = eio_nready ();
1696 OUTPUT: 1155 OUTPUT:
1697 RETVAL 1156 RETVAL
1698 1157
1699int 1158int
1700npending() 1159npending()
1701 PROTOTYPE: 1160 PROTOTYPE:
1702 CODE: 1161 CODE:
1703 RETVAL = get_npending (); 1162 RETVAL = eio_npending ();
1704 OUTPUT: 1163 OUTPUT:
1705 RETVAL 1164 RETVAL
1706 1165
1707int 1166int
1708nthreads() 1167nthreads()
1709 PROTOTYPE: 1168 PROTOTYPE:
1710 CODE: 1169 CODE:
1711 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1170 RETVAL = eio_nthreads ();
1712 RETVAL = started;
1713 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1714 OUTPUT: 1171 OUTPUT:
1715 RETVAL 1172 RETVAL
1716 1173
1174int
1175fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1176 PROTOTYPE: $$$$
1177 CODE:
1178#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1179 RETVAL = posix_fadvise (fh, offset, length, advice);
1180#else
1181 RETVAL = errno = ENOSYS;
1182#endif
1183 OUTPUT:
1184 RETVAL
1185
1186ssize_t
1187sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1188 PROTOTYPE: $$$$
1189 CODE:
1190 eio_sendfile_sync (ofh, ifh, offset, count);
1191
1192void _on_next_submit (SV *cb)
1193 CODE:
1194 SvREFCNT_dec (on_next_submit);
1195 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1196
1717PROTOTYPES: DISABLE 1197PROTOTYPES: DISABLE
1718 1198
1719MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1199MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1720 1200
1721void 1201void
1722cancel (aio_req_ornot req) 1202cancel (aio_req_ornot req)
1723 CODE: 1203 CODE:
1724 req_cancel (req); 1204 eio_cancel (req);
1725 1205
1726void 1206void
1727cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1207cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1728 CODE: 1208 PPCODE:
1209{
1210 if (GIMME_V != G_VOID)
1211 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1212
1213 if (items > 1)
1214 {
1215 SV *cb_cv =get_cb (callback);
1216
1729 SvREFCNT_dec (req->callback); 1217 SvREFCNT_dec (req->callback);
1730 req->callback = newSVsv (callback); 1218 req->callback = SvREFCNT_inc (cb_cv);
1219 }
1220}
1731 1221
1732MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1222MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1733 1223
1734void 1224void
1735add (aio_req grp, ...) 1225add (aio_req grp, ...)
1736 PPCODE: 1226 PPCODE:
1737{ 1227{
1738 int i; 1228 int i;
1739 aio_req req;
1740 1229
1741 if (grp->int1 == 2) 1230 if (grp->int1 == 2)
1742 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1231 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1743 1232
1744 for (i = 1; i < items; ++i ) 1233 for (i = 1; i < items; ++i )
1745 { 1234 {
1235 aio_req req;
1236
1746 if (GIMME_V != G_VOID) 1237 if (GIMME_V != G_VOID)
1747 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1238 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1748 1239
1749 req = SvAIO_REQ (ST (i)); 1240 req = SvAIO_REQ (ST (i));
1750 1241
1751 if (req) 1242 if (req)
1752 { 1243 eio_grp_add (grp, req);
1753 ++grp->size;
1754 req->grp = grp;
1755
1756 req->grp_prev = 0;
1757 req->grp_next = grp->grp_first;
1758
1759 if (grp->grp_first)
1760 grp->grp_first->grp_prev = req;
1761
1762 grp->grp_first = req;
1763 }
1764 } 1244 }
1765} 1245}
1766 1246
1767void 1247void
1768cancel_subs (aio_req_ornot req) 1248cancel_subs (aio_req_ornot req)
… …
1777 AV *av; 1257 AV *av;
1778 1258
1779 grp->errorno = errno; 1259 grp->errorno = errno;
1780 1260
1781 av = newAV (); 1261 av = newAV ();
1262 av_extend (av, items - 1);
1782 1263
1783 for (i = 1; i < items; ++i ) 1264 for (i = 1; i < items; ++i )
1784 av_push (av, newSVsv (ST (i))); 1265 av_push (av, newSVsv (ST (i)));
1785 1266
1786 SvREFCNT_dec (grp->sv1); 1267 SvREFCNT_dec (grp->sv1);
… …
1793 grp->errorno = errorno; 1274 grp->errorno = errorno;
1794 1275
1795void 1276void
1796limit (aio_req grp, int limit) 1277limit (aio_req grp, int limit)
1797 CODE: 1278 CODE:
1798 grp->int2 = limit; 1279 eio_grp_limit (grp, limit);
1799 aio_grp_feed (grp);
1800 1280
1801void 1281void
1802feed (aio_req grp, SV *callback=&PL_sv_undef) 1282feed (aio_req grp, SV *callback=&PL_sv_undef)
1803 CODE: 1283 CODE:
1804{ 1284{
1805 SvREFCNT_dec (grp->sv2); 1285 SvREFCNT_dec (grp->sv2);
1806 grp->sv2 = newSVsv (callback); 1286 grp->sv2 = newSVsv (callback);
1287 grp->feed = aio_grp_feed;
1807 1288
1808 if (grp->int2 <= 0) 1289 if (grp->int2 <= 0)
1809 grp->int2 = 2; 1290 grp->int2 = 2;
1810 1291
1811 aio_grp_feed (grp); 1292 eio_grp_limit (grp, grp->int2);
1812} 1293}
1813 1294

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