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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.15 by root, Sat Jul 23 18:19:56 2005 UTC vs.
Revision 1.195 by root, Mon Sep 26 20:19:08 2011 UTC

1#include "libeio/xthread.h"
2
3#include <errno.h>
4
1#include "EXTERN.h" 5#include "EXTERN.h"
2#include "perl.h" 6#include "perl.h"
3#include "XSUB.h" 7#include "XSUB.h"
4 8
9#include "schmorp.h"
10
11#include <stddef.h>
12#include <stdlib.h>
13#include <errno.h>
5#include <sys/types.h> 14#include <sys/types.h>
6#include <sys/stat.h> 15#include <sys/stat.h>
7
8#include <unistd.h> 16#include <limits.h>
9#include <fcntl.h> 17#include <fcntl.h>
10#include <signal.h>
11#include <sched.h> 18#include <sched.h>
12#if __linux 19
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
13#include <sys/syscall.h> 21# include <sys/mman.h>
14#endif 22#endif
15 23
16#include <pthread.h> 24/* perl namespace pollution */
25#undef VERSION
17 26
18typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 27/* perl stupidly overrides readdir and maybe others */
19typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 28/* with thread-unsafe versions, imagine that :( */
20typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ 29#undef readdir
30#undef opendir
31#undef closedir
21 32
22#if __ia64 33#ifdef _WIN32
23# define STACKSIZE 65536 34
35 // perl overrides all those nice libc functions
36
37 #undef malloc
38 #undef free
39 #undef open
40 #undef read
41 #undef write
42 #undef send
43 #undef recv
44 #undef stat
45 #undef lstat
46 #undef fstat
47 #undef truncate
48 #undef ftruncate
49 #undef open
50 #undef link
51 #undef close
52 #undef unlink
53 #undef mkdir
54 #undef rmdir
55 #undef rename
56 #undef lseek
57 #undef opendir
58 #undef readdir
59 #undef closedir
60 #undef chmod
61 #undef fchmod
62 #undef dup
63 #undef dup2
64 #undef abort
65 #undef pipe
66
24#else 67#else
25# define STACKSIZE 4096 68
69 #include <sys/time.h>
70 #include <sys/select.h>
71 #include <unistd.h>
72 #include <utime.h>
73 #include <signal.h>
74
75#endif
76
77#define EIO_STRUCT_STAT Stat_t
78
79/* use NV for 32 bit perls as it allows larger offsets */
80#if IVSIZE >= 8
81# define VAL64 IV
82# define SvVAL64 SvIV
83# define newSVval64 newSViv
84#else
85# define VAL64 NV
86# define SvVAL64 SvNV
87# define newSVval64 newSVnv
88#endif
89
90/*****************************************************************************/
91
92#if __GNUC__ >= 3
93# define expect(expr,value) __builtin_expect ((expr),(value))
94#else
95# define expect(expr,value) (expr)
96#endif
97
98#define expect_false(expr) expect ((expr) != 0, 0)
99#define expect_true(expr) expect ((expr) != 0, 1)
100
101/*****************************************************************************/
102
103typedef SV SV8; /* byte-sv, used for argument-checking */
104typedef int aio_rfd; /* read file desriptor */
105typedef int aio_wfd; /* write file descriptor */
106
107static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
108
109#define EIO_REQ_MEMBERS \
110 SV *callback; \
111 SV *sv1, *sv2; \
112 SV *sv3, *sv4; \
113 STRLEN stroffset; \
114 SV *self;
115
116#define EIO_NO_WRAPPERS 1
117
118#include "libeio/config.h"
119#include "libeio/eio.h"
120
121static int req_invoke (eio_req *req);
122#define EIO_FINISH(req) req_invoke (req)
123static void req_destroy (eio_req *grp);
124#define EIO_DESTROY(req) req_destroy (req)
125
126#include "libeio/eio.c"
127
128/* Linux/others */
129#ifndef O_ASYNC
130# define O_ASYNC 0
131#endif
132#ifndef O_DIRECT
133# define O_DIRECT 0
134#endif
135#ifndef O_NOATIME
136# define O_NOATIME 0
137#endif
138
139/* POSIX */
140#ifndef O_CLOEXEC
141# define O_CLOEXEC 0
142#endif
143#ifndef O_NOFOLLOW
144# define O_NOFOLLOW 0
145#endif
146#ifndef O_NOCTTY
147# define O_NOCTTY 0
148#endif
149#ifndef O_NONBLOCK
150# define O_NONBLOCK 0
151#endif
152#ifndef O_EXEC
153# define O_EXEC 0
154#endif
155#ifndef O_SEARCH
156# define O_SEARCH 0
157#endif
158#ifndef O_DIRECTORY
159# define O_DIRECTORY 0
160#endif
161#ifndef O_DSYNC
162# define O_DSYNC 0
163#endif
164#ifndef O_RSYNC
165# define O_RSYNC 0
166#endif
167#ifndef O_SYNC
168# define O_SYNC 0
169#endif
170#ifndef O_TTY_INIT
171# define O_TTY_INIT 0
172#endif
173
174#ifndef POSIX_FADV_NORMAL
175# define POSIX_FADV_NORMAL 0
176#endif
177#ifndef POSIX_FADV_SEQUENTIAL
178# define POSIX_FADV_SEQUENTIAL 0
179#endif
180#ifndef POSIX_FADV_RANDOM
181# define POSIX_FADV_RANDOM 0
182#endif
183#ifndef POSIX_FADV_NOREUSE
184# define POSIX_FADV_NOREUSE 0
185#endif
186#ifndef POSIX_FADV_WILLNEED
187# define POSIX_FADV_WILLNEED 0
188#endif
189#ifndef POSIX_FADV_DONTNEED
190# define POSIX_FADV_DONTNEED 0
191#endif
192
193#if !HAVE_POSIX_FADVISE
194# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
195#endif
196
197#ifndef POSIX_MADV_NORMAL
198# define POSIX_MADV_NORMAL 0
199#endif
200#ifndef POSIX_MADV_SEQUENTIAL
201# define POSIX_MADV_SEQUENTIAL 0
202#endif
203#ifndef POSIX_MADV_RANDOM
204# define POSIX_MADV_RANDOM 0
205#endif
206#ifndef POSIX_MADV_WILLNEED
207# define POSIX_MADV_WILLNEED 0
208#endif
209#ifndef POSIX_MADV_DONTNEED
210# define POSIX_MADV_DONTNEED 0
211#endif
212
213#if !HAVE_POSIX_MADVISE
214# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
215#endif
216
217#ifndef PROT_NONE
218# define PROT_NONE 0
219#endif
220#ifndef PROT_READ
221# define PROT_READ 0
222#endif
223#ifndef PROT_WRITE
224# define PROT_READ 0
225#endif
226#ifndef PROT_EXEC
227# define PROT_EXEC 0
228#endif
229
230#ifndef ST_RDONLY
231# define ST_RDONLY 0
232#endif
233#ifndef ST_NOSUID
234# define ST_NOSUID 0
235#endif
236#ifndef ST_NODEV
237# define ST_NODEV 0
238#endif
239#ifndef ST_NOEXEC
240# define ST_NOEXEC 0
241#endif
242#ifndef ST_SYNCHRONOUS
243# define ST_SYNCHRONOUS 0
244#endif
245#ifndef ST_MANDLOCK
246# define ST_MANDLOCK 0
247#endif
248#ifndef ST_WRITE
249# define ST_WRITE 0
250#endif
251#ifndef ST_APPEND
252# define ST_APPEND 0
253#endif
254#ifndef ST_IMMUTABLE
255# define ST_IMMUTABLE 0
256#endif
257#ifndef ST_NOATIME
258# define ST_NOATIME 0
259#endif
260#ifndef ST_NODIRATIME
261# define ST_NODIRATIME 0
262#endif
263#ifndef ST_RELATIME
264# define ST_RELATIME 0
265#endif
266
267#ifndef S_IFIFO
268# define S_IFIFO 0
269#endif
270#ifndef S_IFCHR
271# define S_IFCHR 0
272#endif
273#ifndef S_IFBLK
274# define S_IFBLK 0
275#endif
276#ifndef S_IFLNK
277# define S_IFLNK 0
278#endif
279#ifndef S_IFREG
280# define S_IFREG 0
281#endif
282#ifndef S_IFDIR
283# define S_IFDIR 0
284#endif
285#ifndef S_IFWHT
286# define S_IFWHT 0
287#endif
288#ifndef S_IFSOCK
289# define S_IFSOCK 0
290#endif
291
292#ifndef MAP_ANONYMOUS
293# ifdef MAP_ANON
294# define MAP_ANONYMOUS MAP_ANON
295# else
296# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
297# endif
298#endif
299#ifndef MAP_HUGETLB
300# define MAP_HUGETLB 0
301#endif
302#ifndef MAP_LOCKED
303# define MAP_LOCKED 0
304#endif
305#ifndef MAP_NORESERVE
306# define MAP_NORESERVE 0
307#endif
308#ifndef MAP_POPULATE
309# define MAP_POPULATE 0
310#endif
311#ifndef MAP_NONBLOCK
312# define MAP_NONBLOCK 0
313#endif
314
315#ifndef makedev
316# define makedev(maj,min) (((maj) << 8) | (min))
317#endif
318#ifndef major
319# define major(dev) ((dev) >> 8)
320#endif
321#ifndef minor
322# define minor(dev) ((dev) & 0xff)
323#endif
324
325#ifndef PAGESIZE
326# define PAGESIZE sysconf (_SC_PAGESIZE)
26#endif 327#endif
27 328
28enum { 329enum {
29 REQ_QUIT, 330 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
30 REQ_OPEN, REQ_CLOSE,
31 REQ_READ, REQ_WRITE, REQ_READAHEAD,
32 REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,
33 REQ_FSYNC, REQ_FDATASYNC,
34}; 331};
35 332
36typedef struct aio_cb {
37 struct aio_cb *volatile next;
38
39 int type;
40
41 int fd;
42 off_t offset;
43 size_t length;
44 ssize_t result;
45 mode_t mode; /* open */
46 int errorno;
47 SV *data, *callback, *fh;
48 void *dataptr;
49 STRLEN dataoffset;
50
51 Stat_t *statdata;
52} aio_cb;
53
54typedef aio_cb *aio_req; 333typedef eio_req *aio_req;
334typedef eio_req *aio_req_ornot;
335typedef eio_wd *aio_wd;
55 336
56static int started; 337static SV *on_next_submit;
57static volatile int nreqs; 338static int next_pri = EIO_PRI_DEFAULT;
58static int max_outstanding = 1<<30; 339static int max_outstanding;
59static int respipe [2];
60 340
61static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 341static s_epipe respipe;
62static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
63static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
64 342
65static volatile aio_req reqs, reqe; /* queue start, queue end */ 343static void req_destroy (aio_req req);
66static volatile aio_req ress, rese; /* queue start, queue end */ 344static void req_cancel (aio_req req);
67 345
68static void 346static void want_poll (void)
69poll_wait ()
70{ 347{
71 if (nreqs && !ress) 348 /* write a dummy byte to the pipe so fh becomes ready */
349 s_epipe_signal (&respipe);
350}
351
352static void done_poll (void)
353{
354 /* read any signals sent by the worker threads */
355 s_epipe_drain (&respipe);
356}
357
358/* must be called at most once */
359static SV *req_sv (aio_req req, HV *stash)
360{
361 if (!req->self)
72 { 362 {
73 fd_set rfd; 363 req->self = (SV *)newHV ();
74 FD_ZERO(&rfd); 364 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
75 FD_SET(respipe [0], &rfd);
76
77 select (respipe [0] + 1, &rfd, 0, 0, 0);
78 } 365 }
79}
80 366
81static int 367 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
82poll_cb () 368}
83{
84 dSP;
85 int count = 0;
86 aio_req req, prv;
87 369
88 pthread_mutex_lock (&reslock); 370static aio_req SvAIO_REQ (SV *sv)
371{
372 MAGIC *mg;
89 373
90 { 374 if (!SvROK (sv)
91 /* read any signals sent by the worker threads */ 375 || (SvSTASH (SvRV (sv)) != aio_grp_stash
92 char buf [32]; 376 && SvSTASH (SvRV (sv)) != aio_req_stash
93 while (read (respipe [0], buf, 32) > 0) 377 && !sv_derived_from (sv, "IO::AIO::REQ")))
94 ; 378 croak ("object of class IO::AIO::REQ expected");
95 }
96 379
97 req = ress; 380 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
98 ress = rese = 0;
99 381
100 pthread_mutex_unlock (&reslock); 382 return mg ? (aio_req)mg->mg_ptr : 0;
383}
101 384
102 while (req) 385static aio_wd SvAIO_WD (SV *sv)
386{
387 if (!SvROK (sv)
388 || SvSTASH (SvRV (sv)) != aio_wd_stash
389 || SvTYPE (SvRV (sv)) != SVt_PVMG)
390 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
391
392 return (aio_wd)(long)SvIVX (SvRV (sv));
393}
394
395static void aio_grp_feed (aio_req grp)
396{
397 if (grp->sv2 && SvOK (grp->sv2))
103 { 398 {
104 nreqs--; 399 dSP;
105 400
106 if (req->type == REQ_QUIT) 401 ENTER;
107 started--; 402 SAVETMPS;
108 else 403 PUSHMARK (SP);
404 XPUSHs (req_sv (grp, aio_grp_stash));
405 PUTBACK;
406 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
407 SPAGAIN;
408 FREETMPS;
409 LEAVE;
410 }
411}
412
413static void req_submit (eio_req *req)
414{
415 eio_submit (req);
416
417 if (expect_false (on_next_submit))
418 {
419 dSP;
420 SV *cb = sv_2mortal (on_next_submit);
421
422 on_next_submit = 0;
423
424 PUSHMARK (SP);
425 PUTBACK;
426 call_sv (cb, G_DISCARD | G_EVAL);
427 }
428}
429
430static int req_invoke (eio_req *req)
431{
432 if (req->flags & FLAG_SV2_RO_OFF)
433 SvREADONLY_off (req->sv2);
434
435 if (!EIO_CANCELLED (req) && req->callback)
436 {
437 dSP;
438 static SV *sv_result_cache; /* caches the result integer SV */
439 SV *sv_result;
440
441 ENTER;
442 SAVETMPS;
443 PUSHMARK (SP);
444 EXTEND (SP, 1);
445
446 /* do not recreate the result IV from scratch each time */
447 if (expect_true (sv_result_cache))
109 { 448 {
110 int errorno = errno; 449 sv_result = sv_result_cache; sv_result_cache = 0;
111 errno = req->errorno; 450 SvIV_set (sv_result, req->result);
112 451 SvIOK_only (sv_result);
113 if (req->type == REQ_READ)
114 SvCUR_set (req->data, req->dataoffset
115 + req->result > 0 ? req->result : 0);
116
117 if (req->data)
118 SvREFCNT_dec (req->data);
119
120 if (req->fh)
121 SvREFCNT_dec (req->fh);
122
123 if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT)
124 {
125 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
126 PL_laststatval = req->result;
127 PL_statcache = *(req->statdata);
128
129 Safefree (req->statdata);
130 }
131
132 ENTER;
133 PUSHMARK (SP);
134 XPUSHs (sv_2mortal (newSViv (req->result)));
135
136 if (req->type == REQ_OPEN)
137 {
138 /* convert fd to fh */
139 SV *fh;
140
141 PUTBACK;
142 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
143 SPAGAIN;
144
145 fh = SvREFCNT_inc (POPs);
146
147 PUSHMARK (SP);
148 XPUSHs (sv_2mortal (fh));
149 }
150
151 if (SvOK (req->callback))
152 {
153 PUTBACK;
154 call_sv (req->callback, G_VOID | G_EVAL);
155 SPAGAIN;
156 }
157
158 LEAVE;
159
160 if (req->callback)
161 SvREFCNT_dec (req->callback);
162
163 errno = errorno;
164 count++;
165 }
166
167 prv = req;
168 req = req->next;
169 Safefree (prv);
170
171 /* TODO: croak on errors? */
172 }
173
174 return count;
175}
176
177static void *aio_proc(void *arg);
178
179static void
180start_thread (void)
181{
182 sigset_t fullsigset, oldsigset;
183 pthread_t tid;
184 pthread_attr_t attr;
185
186 pthread_attr_init (&attr);
187 pthread_attr_setstacksize (&attr, STACKSIZE);
188 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
189
190 sigfillset (&fullsigset);
191 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
192
193 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
194 started++;
195
196 sigprocmask (SIG_SETMASK, &oldsigset, 0);
197}
198
199static void
200send_req (aio_req req)
201{
202 nreqs++;
203
204 pthread_mutex_lock (&reqlock);
205
206 req->next = 0;
207
208 if (reqe)
209 {
210 reqe->next = req;
211 reqe = req;
212 }
213 else
214 reqe = reqs = req;
215
216 pthread_cond_signal (&reqwait);
217 pthread_mutex_unlock (&reqlock);
218
219 while (nreqs > max_outstanding)
220 {
221 poll_wait ();
222 poll_cb ();
223 }
224}
225
226static void
227end_thread (void)
228{
229 aio_req req;
230 New (0, req, 1, aio_cb);
231 req->type = REQ_QUIT;
232
233 send_req (req);
234}
235
236static void *
237aio_proc (void *thr_arg)
238{
239 aio_req req;
240 int type;
241
242 do
243 {
244 pthread_mutex_lock (&reqlock);
245
246 for (;;)
247 {
248 req = reqs;
249
250 if (reqs)
251 {
252 reqs = reqs->next;
253 if (!reqs) reqe = 0;
254 }
255
256 if (req)
257 break;
258
259 pthread_cond_wait (&reqwait, &reqlock);
260 }
261
262 pthread_mutex_unlock (&reqlock);
263
264 errno = 0; /* strictly unnecessary */
265
266 type = req->type;
267
268 switch (type)
269 {
270 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
271 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
272#if SYS_readahead
273 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
274#else
275 case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
276#endif
277
278 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
279 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
280 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
281
282 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
283 case REQ_CLOSE: req->result = close (req->fd); break;
284 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
285
286 case REQ_FSYNC: req->result = fsync (req->fd); break;
287 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
288
289 case REQ_QUIT:
290 break;
291
292 default:
293 req->result = ENOSYS;
294 break;
295 }
296
297 req->errorno = errno;
298
299 pthread_mutex_lock (&reslock);
300
301 req->next = 0;
302
303 if (rese)
304 {
305 rese->next = req;
306 rese = req;
307 } 452 }
308 else 453 else
309 { 454 {
310 rese = ress = req; 455 sv_result = newSViv (req->result);
311 456 SvREADONLY_on (sv_result);
312 /* write a dummy byte to the pipe so fh becomes ready */
313 write (respipe [1], &respipe, 1);
314 } 457 }
315 458
316 pthread_mutex_unlock (&reslock); 459 switch (req->type)
460 {
461 case EIO_WD_OPEN:
462 PUSHs (sv_2mortal (sv_bless (newRV_noinc (newSViv (((long)req->wd))), aio_wd_stash)));
463 break;
464
465 case EIO_READDIR:
466 {
467 SV *rv = &PL_sv_undef;
468
469 if (req->result >= 0)
470 {
471 int i;
472 char *names = (char *)req->ptr2;
473 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
474 AV *av = newAV ();
475
476 av_extend (av, req->result - 1);
477
478 for (i = 0; i < req->result; ++i)
479 {
480 if (req->int1 & EIO_READDIR_DENTS)
481 {
482 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
483
484 if (req->int1 & EIO_READDIR_CUSTOM2)
485 {
486 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
487 AV *avent = newAV ();
488
489 av_extend (avent, 2);
490
491 if (!sv_type [ent->type])
492 {
493 sv_type [ent->type] = newSViv (ent->type);
494 SvREADONLY_on (sv_type [ent->type]);
495 }
496
497 av_store (avent, 0, namesv);
498 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
499 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
500
501 av_store (av, i, newRV_noinc ((SV *)avent));
502 }
503 else
504 av_store (av, i, namesv);
505
506 ++ent;
507 }
508 else
509 {
510 SV *name = newSVpv (names, 0);
511 av_store (av, i, name);
512 names += SvCUR (name) + 1;
513 }
514 }
515
516 rv = sv_2mortal (newRV_noinc ((SV *)av));
517 }
518
519 PUSHs (rv);
520
521 if (req->int1 & EIO_READDIR_CUSTOM1)
522 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
523 }
524 break;
525
526 case EIO_OPEN:
527 {
528 /* convert fd to fh */
529 SV *fh = &PL_sv_undef;
530
531 if (req->result >= 0)
532 {
533 GV *gv = (GV *)sv_newmortal ();
534 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
535 char sym [64];
536 int symlen;
537
538 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
539 gv_init (gv, aio_stash, sym, symlen, 0);
540
541 symlen = snprintf (
542 sym,
543 sizeof (sym),
544 "%s&=%d",
545 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
546 (int)req->result
547 );
548
549 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
550 fh = (SV *)gv;
551 }
552
553 PUSHs (fh);
554 }
555 break;
556
557 case EIO_STATVFS:
558 case EIO_FSTATVFS:
559 {
560 SV *rv = &PL_sv_undef;
561
562#ifndef _WIN32
563 if (req->result >= 0)
564 {
565 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
566 HV *hv = newHV ();
567
568 rv = sv_2mortal (newRV_noinc ((SV *)hv));
569
570 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
571 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
572 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
573 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
574 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
575 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
576 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
577 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
578 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
579 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
580 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
581 }
582#endif
583
584 PUSHs (rv);
585 }
586
587 break;
588
589 case EIO_GROUP:
590 req->int1 = 2; /* mark group as finished */
591
592 if (req->sv1)
593 {
594 int i;
595 AV *av = (AV *)req->sv1;
596
597 EXTEND (SP, AvFILL (av) + 1);
598 for (i = 0; i <= AvFILL (av); ++i)
599 PUSHs (*av_fetch (av, i, 0));
600 }
601 break;
602
603 case EIO_NOP:
604 case EIO_BUSY:
605 break;
606
607 case EIO_READLINK:
608 case EIO_REALPATH:
609 if (req->result > 0)
610 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
611 break;
612
613 case EIO_STAT:
614 case EIO_LSTAT:
615 case EIO_FSTAT:
616 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
617 PL_laststatval = req->result;
618 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
619 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
620 PUSHs (sv_result);
621 break;
622
623 case EIO_READ:
624 {
625 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
626 *SvEND (req->sv2) = 0;
627 SvPOK_only (req->sv2);
628 SvSETMAGIC (req->sv2);
629 PUSHs (sv_result);
630 }
631 break;
632
633 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
634 if (req->result > 0)
635 SvIV_set (sv_result, 0);
636 /* FALLTHROUGH */
637
638 default:
639 PUSHs (sv_result);
640 break;
641 }
642
643 errno = req->errorno;
644
645 PUTBACK;
646 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
647 SPAGAIN;
648
649 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
650 SvREFCNT_dec (sv_result);
651 else
652 sv_result_cache = sv_result;
653
654 FREETMPS;
655 LEAVE;
656
657 PUTBACK;
317 } 658 }
318 while (type != REQ_QUIT); 659
660 return !!SvTRUE (ERRSV);
661}
662
663static void req_destroy (aio_req req)
664{
665 if (req->self)
666 {
667 sv_unmagic (req->self, PERL_MAGIC_ext);
668 SvREFCNT_dec (req->self);
669 }
670
671 SvREFCNT_dec (req->sv1);
672 SvREFCNT_dec (req->sv2);
673 SvREFCNT_dec (req->sv3);
674 SvREFCNT_dec (req->sv4);
675 SvREFCNT_dec (req->callback);
676
677 Safefree (req);
678}
679
680static void req_cancel_subs (aio_req grp)
681{
682 if (grp->type != EIO_GROUP)
683 return;
684
685 SvREFCNT_dec (grp->sv2);
686 grp->sv2 = 0;
687
688 eio_grp_cancel (grp);
689}
690
691static void create_respipe (void)
692{
693 if (s_epipe_renew (&respipe))
694 croak ("IO::AIO: unable to initialize result pipe");
695}
696
697static void poll_wait (void)
698{
699 while (eio_nreqs ())
700 {
701 int size;
702
703 X_LOCK (reslock);
704 size = res_queue.size;
705 X_UNLOCK (reslock);
706
707 if (size)
708 return;
709
710 etp_maybe_start_thread ();
711
712 s_epipe_wait (&respipe);
713 }
714}
715
716static int poll_cb (void)
717{
718 for (;;)
719 {
720 int res = eio_poll ();
721
722 if (res > 0)
723 croak (0);
724
725 if (!max_outstanding || max_outstanding > eio_nreqs ())
726 return res;
727
728 poll_wait ();
729 }
730}
731
732static void ecb_cold
733reinit (void)
734{
735 create_respipe ();
736
737 if (eio_init (want_poll, done_poll) < 0)
738 croak ("IO::AIO: unable to initialise eio library");
739}
740
741/*****************************************************************************/
742
743#if !_POSIX_MAPPED_FILES
744# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
745# define munmap(addr,length) (errno = ENOSYS, -1)
746#endif
747
748#if !_POSIX_MEMORY_PROTECTION
749# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
750# define PROT_NONE 0
751# define PROT_WRITE 0
752# define MAP_PRIVATE 0
753# define MAP_SHARED 0
754# define MAP_FIXED 0
755#endif
756
757#define MMAP_MAGIC PERL_MAGIC_ext
758
759static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
760{
761 int old_errno = errno;
762 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
763 errno = old_errno;
764
765 mg->mg_obj = 0; /* just in case */
766
767 SvREADONLY_off (sv);
768
769 if (SvPVX (sv) != mg->mg_ptr)
770 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
771
772 SvCUR_set (sv, 0);
773 SvPVX (sv) = 0;
774 SvOK_off (sv);
319 775
320 return 0; 776 return 0;
321} 777}
322 778
779static MGVTBL mmap_vtbl = {
780 0, 0, 0, 0, mmap_free
781};
782
783/*****************************************************************************/
784
785static SV * get_cb (SV *cb_sv)
786{
787 SvGETMAGIC (cb_sv);
788 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
789}
790
791#define dREQ \
792 SV *cb_cv; \
793 aio_req req; \
794 int req_pri = next_pri; \
795 next_pri = EIO_PRI_DEFAULT; \
796 \
797 cb_cv = get_cb (callback); \
798 \
799 Newz (0, req, 1, eio_req); \
800 if (!req) \
801 croak ("out of memory during eio_req allocation"); \
802 \
803 req->callback = SvREFCNT_inc (cb_cv); \
804 req->pri = req_pri
805
806#define REQ_SEND \
807 PUTBACK; \
808 req_submit (req); \
809 SPAGAIN; \
810 \
811 if (GIMME_V != G_VOID) \
812 XPUSHs (req_sv (req, aio_req_stash));
813
814static void
815req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
816{
817 if (SvROK (path))
818 {
819 AV *av = (AV *)SvRV (path);
820 SV *wdob;
821
822 if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)
823 croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");
824
825 path = AvARRAY (av)[1];
826 wdob = AvARRAY (av)[0];
827
828 *wd = SvAIO_WD (wdob);
829 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
830 }
831
832 *pathsv = newSVsv (path);
833 *ptr = SvPVbyte_nolen (*pathsv);
834}
835
836static void
837req_set_path1 (aio_req req, SV *path)
838{
839 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
840}
841
842static void
843req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
844{
845 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
846
847 switch (SvTYPE (rv))
848 {
849 case SVt_PVIO:
850 case SVt_PVLV:
851 case SVt_PVGV:
852 req->type = type_fh;
853 req->sv1 = newSVsv (fh_or_path);
854 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
855 break;
856
857 default:
858 req->type = type_path;
859 req_set_path1 (req, fh_or_path);
860 break;
861 }
862
863}
864
323MODULE = IO::AIO PACKAGE = IO::AIO 865MODULE = IO::AIO PACKAGE = IO::AIO
324 866
325PROTOTYPES: ENABLE 867PROTOTYPES: ENABLE
326 868
327BOOT: 869BOOT:
328{ 870{
329 if (pipe (respipe)) 871 static const struct {
330 croak ("unable to initialize result pipe"); 872 const char *name;
873 IV iv;
874 } *civ, const_iv[] = {
875# define const_niv(name, value) { # name, (IV) value },
876# define const_iv(name) { # name, (IV) name },
877# define const_eio(name) { # name, (IV) EIO_ ## name },
878 const_iv (EXDEV)
879 const_iv (ENOSYS)
880 const_iv (O_RDONLY)
881 const_iv (O_WRONLY)
882 const_iv (O_RDWR)
883 const_iv (O_CREAT)
884 const_iv (O_TRUNC)
885 const_iv (O_EXCL)
886 const_iv (O_APPEND)
331 887
332 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 888 const_iv (O_ASYNC)
333 croak ("cannot set result pipe to nonblocking mode"); 889 const_iv (O_DIRECT)
890 const_iv (O_NOATIME)
334 891
335 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 892 const_iv (O_CLOEXEC)
336 croak ("cannot set result pipe to nonblocking mode"); 893 const_iv (O_NOCTTY)
337} 894 const_iv (O_NOFOLLOW)
895 const_iv (O_NONBLOCK)
896 const_iv (O_EXEC)
897 const_iv (O_SEARCH)
898 const_iv (O_DIRECTORY)
899 const_iv (O_DSYNC)
900 const_iv (O_RSYNC)
901 const_iv (O_SYNC)
902 const_iv (O_TTY_INIT)
338 903
904 const_iv (S_IFIFO)
905 const_iv (S_IFCHR)
906 const_iv (S_IFBLK)
907 const_iv (S_IFLNK)
908 const_iv (S_IFREG)
909 const_iv (S_IFDIR)
910 const_iv (S_IFWHT)
911 const_iv (S_IFSOCK)
912 const_iv (S_IFMT)
913
914 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
915 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
916 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
917 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
918 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
919 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
920
921 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
922 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
923 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
924 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
925 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
926
927 const_iv (ST_RDONLY)
928 const_iv (ST_NOSUID)
929 const_iv (ST_NODEV)
930 const_iv (ST_NOEXEC)
931 const_iv (ST_SYNCHRONOUS)
932 const_iv (ST_MANDLOCK)
933 const_iv (ST_WRITE)
934 const_iv (ST_APPEND)
935 const_iv (ST_IMMUTABLE)
936 const_iv (ST_NOATIME)
937 const_iv (ST_NODIRATIME)
938 const_iv (ST_RELATIME)
939
940 const_iv (PROT_NONE)
941 const_iv (PROT_EXEC)
942 const_iv (PROT_READ)
943 const_iv (PROT_WRITE)
944
945 /*const_iv (MAP_FIXED)*/
946 const_iv (MAP_PRIVATE)
947 const_iv (MAP_SHARED)
948 const_iv (MAP_ANONYMOUS)
949
950 /* linuxish */
951 const_iv (MAP_HUGETLB)
952 const_iv (MAP_LOCKED)
953 const_iv (MAP_NORESERVE)
954 const_iv (MAP_POPULATE)
955 const_iv (MAP_NONBLOCK)
956
957 const_eio (MCL_FUTURE)
958 const_eio (MCL_CURRENT)
959
960 const_eio (MS_ASYNC)
961 const_eio (MS_INVALIDATE)
962 const_eio (MS_SYNC)
963
964 const_eio (MT_MODIFY)
965
966 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
967 const_eio (SYNC_FILE_RANGE_WRITE)
968 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
969
970 const_eio (FALLOC_FL_KEEP_SIZE)
971
972 const_eio (READDIR_DENTS)
973 const_eio (READDIR_DIRS_FIRST)
974 const_eio (READDIR_STAT_ORDER)
975 const_eio (READDIR_FOUND_UNKNOWN)
976
977 const_eio (DT_UNKNOWN)
978 const_eio (DT_FIFO)
979 const_eio (DT_CHR)
980 const_eio (DT_DIR)
981 const_eio (DT_BLK)
982 const_eio (DT_REG)
983 const_eio (DT_LNK)
984 const_eio (DT_SOCK)
985 const_eio (DT_WHT)
986 };
987
988 aio_stash = gv_stashpv ("IO::AIO" , 1);
989 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
990 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
991 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
992
993 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
994 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
995
996 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
997
998 reinit ();
999}
1000
339void 1001void
340min_parallel(nthreads) 1002reinit ()
341 int nthreads 1003 PROTOTYPE:
1004
1005void
1006max_poll_reqs (unsigned int nreqs)
342 PROTOTYPE: $ 1007 PROTOTYPE: $
343 CODE: 1008 CODE:
344 while (nthreads > started) 1009 eio_set_max_poll_reqs (nreqs);
345 start_thread ();
346 1010
347void 1011void
348max_parallel(nthreads) 1012max_poll_time (double nseconds)
349 int nthreads
350 PROTOTYPE: $ 1013 PROTOTYPE: $
351 CODE: 1014 CODE:
1015 eio_set_max_poll_time (nseconds);
1016
1017void
1018min_parallel (unsigned int nthreads)
1019 PROTOTYPE: $
1020 CODE:
1021 eio_set_min_parallel (nthreads);
1022
1023void
1024max_parallel (unsigned int nthreads)
1025 PROTOTYPE: $
1026 CODE:
1027 eio_set_max_parallel (nthreads);
1028
1029void
1030max_idle (unsigned int nthreads)
1031 PROTOTYPE: $
1032 CODE:
1033 eio_set_max_idle (nthreads);
1034
1035void
1036idle_timeout (unsigned int seconds)
1037 PROTOTYPE: $
1038 CODE:
1039 eio_set_idle_timeout (seconds);
1040
1041void
1042max_outstanding (unsigned int maxreqs)
1043 PROTOTYPE: $
1044 CODE:
1045 max_outstanding = maxreqs;
1046
1047void
1048aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1049 PPCODE:
352{ 1050{
353 int cur = started; 1051 dREQ;
354 while (cur > nthreads) 1052
355 { 1053 req->type = EIO_WD_OPEN;
356 end_thread (); 1054 req_set_path1 (req, pathname);
1055
1056 REQ_SEND;
1057}
1058
1059void
1060aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1061 PPCODE:
1062{
1063 dREQ;
1064
1065 req->type = EIO_OPEN;
1066 req_set_path1 (req, pathname);
1067 req->int1 = flags;
1068 req->int2 = mode;
1069
1070 REQ_SEND;
1071}
1072
1073void
1074aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1075 ALIAS:
1076 aio_fsync = EIO_FSYNC
1077 aio_fdatasync = EIO_FDATASYNC
1078 aio_syncfs = EIO_SYNCFS
1079 PPCODE:
1080{
1081 int fd = s_fileno_croak (fh, 0);
1082 dREQ;
1083
1084 req->type = ix;
1085 req->sv1 = newSVsv (fh);
1086 req->int1 = fd;
1087
1088 REQ_SEND (req);
1089}
1090
1091void
1092aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1093 PPCODE:
1094{
1095 int fd = s_fileno_croak (fh, 0);
1096 dREQ;
1097
1098 req->type = EIO_SYNC_FILE_RANGE;
1099 req->sv1 = newSVsv (fh);
1100 req->int1 = fd;
1101 req->offs = offset;
1102 req->size = nbytes;
1103 req->int2 = flags;
1104
1105 REQ_SEND (req);
1106}
1107
1108void
1109aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1110 PPCODE:
1111{
1112 int fd = s_fileno_croak (fh, 0);
1113 dREQ;
1114
1115 req->type = EIO_FALLOCATE;
1116 req->sv1 = newSVsv (fh);
1117 req->int1 = fd;
1118 req->int2 = mode;
1119 req->offs = offset;
1120 req->size = len;
1121
1122 REQ_SEND (req);
1123}
1124
1125void
1126aio_close (SV *fh, SV *callback=&PL_sv_undef)
1127 PPCODE:
1128{
1129 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1130 int fd = s_fileno_croak (fh, 0);
1131 dREQ;
1132
1133 if (expect_false (close_fd < 0))
1134 {
1135 int pipefd [2];
1136
1137 if (
1138#ifdef _WIN32
1139 _pipe (pipefd, 1, _O_BINARY) < 0
1140#else
1141 pipe (pipefd) < 0
1142 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1143#endif
1144 || close (pipefd [1]) < 0
357 cur--; 1145 )
1146 abort (); /*D*/
1147
1148 close_fd = pipefd [0];
358 } 1149 }
359 1150
360 while (started > nthreads) 1151 req->type = EIO_DUP2;
1152 req->int1 = close_fd;
1153 req->sv2 = newSVsv (fh);
1154 req->int2 = fd;
1155
1156 REQ_SEND (req);
1157}
1158
1159void
1160aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1161 ALIAS:
1162 aio_read = EIO_READ
1163 aio_write = EIO_WRITE
1164 PPCODE:
1165{
1166 STRLEN svlen;
1167 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1168 char *svptr = SvPVbyte (data, svlen);
1169 UV len = SvUV (length);
1170
1171 if (dataoffset < 0)
1172 dataoffset += svlen;
1173
1174 if (dataoffset < 0 || dataoffset > svlen)
1175 croak ("dataoffset outside of data scalar");
1176
1177 if (ix == EIO_WRITE)
1178 {
1179 /* write: check length and adjust. */
1180 if (!SvOK (length) || len + dataoffset > svlen)
1181 len = svlen - dataoffset;
1182 }
1183 else
1184 {
1185 /* read: check type and grow scalar as necessary */
1186 SvUPGRADE (data, SVt_PV);
1187 svptr = SvGROW (data, len + dataoffset + 1);
1188 }
1189
1190 {
1191 dREQ;
1192
1193 req->type = ix;
1194 req->sv1 = newSVsv (fh);
1195 req->int1 = fd;
1196 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1197 req->size = len;
1198 req->sv2 = SvREFCNT_inc (data);
1199 req->ptr2 = (char *)svptr + dataoffset;
1200 req->stroffset = dataoffset;
1201
1202 if (!SvREADONLY (data))
1203 {
1204 SvREADONLY_on (data);
1205 req->flags |= FLAG_SV2_RO_OFF;
1206 }
1207
1208 REQ_SEND;
1209 }
1210}
1211
1212void
1213aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1214 ALIAS:
1215 aio_readlink = EIO_READLINK
1216 aio_realpath = EIO_REALPATH
1217 PPCODE:
1218{
1219 dREQ;
1220
1221 req->type = ix;
1222 req_set_path1 (req, pathname);
1223
1224 REQ_SEND;
1225}
1226
1227void
1228aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1229 PPCODE:
1230{
1231 int ifd = s_fileno_croak (in_fh , 0);
1232 int ofd = s_fileno_croak (out_fh, 1);
1233 dREQ;
1234
1235 req->type = EIO_SENDFILE;
1236 req->sv1 = newSVsv (out_fh);
1237 req->int1 = ofd;
1238 req->sv2 = newSVsv (in_fh);
1239 req->int2 = ifd;
1240 req->offs = in_offset;
1241 req->size = length;
1242
1243 REQ_SEND;
1244}
1245
1246void
1247aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1248 PPCODE:
1249{
1250 int fd = s_fileno_croak (fh, 0);
1251 dREQ;
1252
1253 req->type = EIO_READAHEAD;
1254 req->sv1 = newSVsv (fh);
1255 req->int1 = fd;
1256 req->offs = offset;
1257 req->size = length;
1258
1259 REQ_SEND;
1260}
1261
1262void
1263aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1264 ALIAS:
1265 aio_stat = EIO_STAT
1266 aio_lstat = EIO_LSTAT
1267 aio_statvfs = EIO_STATVFS
1268 PPCODE:
1269{
1270 dREQ;
1271
1272 req->sv1 = newSVsv (fh_or_path);
1273 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1274 REQ_SEND;
1275}
1276
1277UV
1278major (UV dev)
1279 ALIAS:
1280 minor = 1
1281 CODE:
1282 RETVAL = ix ? major (dev) : minor (dev);
1283 OUTPUT:
1284 RETVAL
1285
1286UV
1287makedev (UV maj, UV min)
1288 CODE:
1289 RETVAL = makedev (maj, min);
1290 OUTPUT:
1291 RETVAL
1292
1293void
1294aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1295 PPCODE:
1296{
1297 dREQ;
1298
1299 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1300 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1301 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1302
1303 REQ_SEND;
1304}
1305
1306void
1307aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1308 PPCODE:
1309{
1310 dREQ;
1311
1312 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1313 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1314
1315 REQ_SEND;
1316}
1317
1318void
1319aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1320 ALIAS:
1321 aio_chmod = EIO_CHMOD
1322 aio_mkdir = EIO_MKDIR
1323 PPCODE:
1324{
1325 dREQ;
1326
1327 req->int2 = mode;
1328 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1329
1330 REQ_SEND;
1331}
1332
1333void
1334aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1335 PPCODE:
1336{
1337 dREQ;
1338
1339 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1340 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1341 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1342
1343 REQ_SEND;
1344}
1345
1346void
1347aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1348 PPCODE:
1349{
1350 dREQ;
1351
1352 req->type = EIO_READDIR;
1353 req->sv1 = newSVsv (pathname);
1354 req->ptr1 = SvPVbyte_nolen (req->sv1);
1355 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1356
1357 if (flags & EIO_READDIR_DENTS)
1358 req->int1 |= EIO_READDIR_CUSTOM2;
1359
1360 REQ_SEND;
1361}
1362
1363void
1364aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1365 ALIAS:
1366 aio_unlink = EIO_UNLINK
1367 aio_rmdir = EIO_RMDIR
1368 aio_readdir = EIO_READDIR
1369 PPCODE:
1370{
1371 dREQ;
1372
1373 req->type = ix;
1374 req_set_path1 (req, pathname);
1375
1376 REQ_SEND;
1377}
1378
1379void
1380aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1381 ALIAS:
1382 aio_link = EIO_LINK
1383 aio_symlink = EIO_SYMLINK
1384 aio_rename = EIO_RENAME
1385 PPCODE:
1386{
1387 dREQ;
1388 eio_wd wd2;
1389
1390 req->type = ix;
1391 req_set_path1 (req, oldpath);
1392 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1393 req->int3 = (long)wd2;
1394
1395 REQ_SEND;
1396}
1397
1398void
1399aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1400 PPCODE:
1401{
1402 dREQ;
1403
1404 req->type = EIO_MKNOD;
1405 req->int2 = (mode_t)mode;
1406 req->offs = dev;
1407 req_set_path1 (req, pathname);
1408
1409 REQ_SEND;
1410}
1411
1412void
1413aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1414 ALIAS:
1415 aio_mtouch = EIO_MTOUCH
1416 aio_msync = EIO_MSYNC
1417 PPCODE:
1418{
1419 STRLEN svlen;
1420 char *svptr = SvPVbyte (data, svlen);
1421 UV len = SvUV (length);
1422
1423 if (offset < 0)
1424 offset += svlen;
1425
1426 if (offset < 0 || offset > svlen)
1427 croak ("offset outside of scalar");
1428
1429 if (!SvOK (length) || len + offset > svlen)
1430 len = svlen - offset;
1431
1432 {
1433 dREQ;
1434
1435 req->type = ix;
1436 req->sv2 = SvREFCNT_inc (data);
1437 req->ptr2 = (char *)svptr + offset;
1438 req->size = len;
1439 req->int1 = flags;
1440
1441 REQ_SEND;
1442 }
1443}
1444
1445void
1446aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1447 PPCODE:
1448{
1449 STRLEN svlen;
1450 char *svptr = SvPVbyte (data, svlen);
1451 UV len = SvUV (length);
1452
1453 if (offset < 0)
1454 offset += svlen;
1455
1456 if (offset < 0 || offset > svlen)
1457 croak ("offset outside of scalar");
1458
1459 if (!SvOK (length) || len + offset > svlen)
1460 len = svlen - offset;
1461
1462 {
1463 dREQ;
1464
1465 req->type = EIO_MLOCK;
1466 req->sv2 = SvREFCNT_inc (data);
1467 req->ptr2 = (char *)svptr + offset;
1468 req->size = len;
1469
1470 REQ_SEND;
1471 }
1472}
1473
1474void
1475aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1476 PPCODE:
1477{
1478 dREQ;
1479
1480 req->type = EIO_MLOCKALL;
1481 req->int1 = flags;
1482
1483 REQ_SEND;
1484}
1485
1486void
1487aio_busy (double delay, SV *callback=&PL_sv_undef)
1488 PPCODE:
1489{
1490 dREQ;
1491
1492 req->type = EIO_BUSY;
1493 req->nv1 = delay < 0. ? 0. : delay;
1494
1495 REQ_SEND;
1496}
1497
1498void
1499aio_group (SV *callback=&PL_sv_undef)
1500 PPCODE:
1501{
1502 dREQ;
1503
1504 req->type = EIO_GROUP;
1505
1506 req_submit (req);
1507 XPUSHs (req_sv (req, aio_grp_stash));
1508}
1509
1510void
1511aio_nop (SV *callback=&PL_sv_undef)
1512 ALIAS:
1513 aio_nop = EIO_NOP
1514 aio_sync = EIO_SYNC
1515 PPCODE:
1516{
1517 dREQ;
1518
1519 req->type = ix;
1520
1521 REQ_SEND;
1522}
1523
1524int
1525aioreq_pri (int pri = 0)
1526 CODE:
1527 RETVAL = next_pri;
1528 if (items > 0)
1529 {
1530 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1531 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1532 next_pri = pri;
1533 }
1534 OUTPUT:
1535 RETVAL
1536
1537void
1538aioreq_nice (int nice = 0)
1539 CODE:
1540 nice = next_pri - nice;
1541 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1542 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1543 next_pri = nice;
1544
1545void
1546flush ()
1547 CODE:
1548 while (eio_nreqs ())
361 { 1549 {
362 poll_wait (); 1550 poll_wait ();
363 poll_cb (); 1551 poll_cb ();
364 } 1552 }
365}
366 1553
367int 1554int
368max_outstanding(nreqs)
369 int nreqs
370 PROTOTYPE: $
371 CODE:
372 RETVAL = max_outstanding;
373 max_outstanding = nreqs;
374
375void
376aio_open(pathname,flags,mode,callback=&PL_sv_undef)
377 SV * pathname
378 int flags
379 int mode
380 SV * callback
381 PROTOTYPE: $$$;$
382 CODE:
383{
384 aio_req req;
385
386 Newz (0, req, 1, aio_cb);
387
388 if (!req)
389 croak ("out of memory during aio_req allocation");
390
391 req->type = REQ_OPEN;
392 req->data = newSVsv (pathname);
393 req->dataptr = SvPV_nolen (req->data);
394 req->fd = flags;
395 req->mode = mode;
396 req->callback = SvREFCNT_inc (callback);
397
398 send_req (req);
399}
400
401void
402aio_close(fh,callback=&PL_sv_undef)
403 SV * fh
404 SV * callback
405 PROTOTYPE: $;$
406 ALIAS:
407 aio_close = REQ_CLOSE
408 aio_fsync = REQ_FSYNC
409 aio_fdatasync = REQ_FDATASYNC
410 CODE:
411{
412 aio_req req;
413
414 Newz (0, req, 1, aio_cb);
415
416 if (!req)
417 croak ("out of memory during aio_req allocation");
418
419 req->type = ix;
420 req->fh = newSVsv (fh);
421 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
422 req->callback = SvREFCNT_inc (callback);
423
424 send_req (req);
425}
426
427void
428aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
429 SV * fh
430 UV offset
431 IV length
432 SV * data
433 IV dataoffset
434 SV * callback
435 ALIAS:
436 aio_read = REQ_READ
437 aio_write = REQ_WRITE
438 PROTOTYPE: $$$$$;$
439 CODE:
440{
441 aio_req req;
442 STRLEN svlen;
443 char *svptr = SvPV (data, svlen);
444
445 SvUPGRADE (data, SVt_PV);
446 SvPOK_on (data);
447
448 if (dataoffset < 0)
449 dataoffset += svlen;
450
451 if (dataoffset < 0 || dataoffset > svlen)
452 croak ("data offset outside of string");
453
454 if (ix == REQ_WRITE)
455 {
456 /* write: check length and adjust. */
457 if (length < 0 || length + dataoffset > svlen)
458 length = svlen - dataoffset;
459 }
460 else
461 {
462 /* read: grow scalar as necessary */
463 svptr = SvGROW (data, length + dataoffset);
464 }
465
466 if (length < 0)
467 croak ("length must not be negative");
468
469 Newz (0, req, 1, aio_cb);
470
471 if (!req)
472 croak ("out of memory during aio_req allocation");
473
474 req->type = ix;
475 req->fh = newSVsv (fh);
476 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
477 : IoOFP (sv_2io (fh)));
478 req->offset = offset;
479 req->length = length;
480 req->data = SvREFCNT_inc (data);
481 req->dataptr = (char *)svptr + dataoffset;
482 req->callback = SvREFCNT_inc (callback);
483
484 send_req (req);
485}
486
487void
488aio_readahead(fh,offset,length,callback=&PL_sv_undef)
489 SV * fh
490 UV offset
491 IV length
492 SV * callback
493 PROTOTYPE: $$$;$
494 CODE:
495{
496 aio_req req;
497
498 if (length < 0)
499 croak ("length must not be negative");
500
501 Newz (0, req, 1, aio_cb);
502
503 if (!req)
504 croak ("out of memory during aio_req allocation");
505
506 req->type = REQ_READAHEAD;
507 req->fh = newSVsv (fh);
508 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
509 req->offset = offset;
510 req->length = length;
511 req->callback = SvREFCNT_inc (callback);
512
513 send_req (req);
514}
515
516void
517aio_stat(fh_or_path,callback=&PL_sv_undef)
518 SV * fh_or_path
519 SV * callback
520 ALIAS:
521 aio_stat = REQ_STAT
522 aio_lstat = REQ_LSTAT
523 CODE:
524{
525 aio_req req;
526
527 Newz (0, req, 1, aio_cb);
528
529 if (!req)
530 croak ("out of memory during aio_req allocation");
531
532 New (0, req->statdata, 1, Stat_t);
533
534 if (!req->statdata)
535 croak ("out of memory during aio_req->statdata allocation");
536
537 if (SvPOK (fh_or_path))
538 {
539 req->type = ix;
540 req->data = newSVsv (fh_or_path);
541 req->dataptr = SvPV_nolen (req->data);
542 }
543 else
544 {
545 req->type = REQ_FSTAT;
546 req->fh = newSVsv (fh_or_path);
547 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
548 }
549
550 req->callback = SvREFCNT_inc (callback);
551
552 send_req (req);
553}
554
555void
556aio_unlink(pathname,callback=&PL_sv_undef)
557 SV * pathname
558 SV * callback
559 CODE:
560{
561 aio_req req;
562
563 Newz (0, req, 1, aio_cb);
564
565 if (!req)
566 croak ("out of memory during aio_req allocation");
567
568 req->type = REQ_UNLINK;
569 req->data = newSVsv (pathname);
570 req->dataptr = SvPV_nolen (req->data);
571 req->callback = SvREFCNT_inc (callback);
572
573 send_req (req);
574}
575
576void
577flush()
578 PROTOTYPE:
579 CODE:
580 while (nreqs)
581 {
582 poll_wait ();
583 poll_cb ();
584 }
585
586void
587poll() 1555poll ()
588 PROTOTYPE:
589 CODE: 1556 CODE:
590 if (nreqs)
591 {
592 poll_wait (); 1557 poll_wait ();
593 poll_cb ();
594 }
595
596int
597poll_fileno()
598 PROTOTYPE:
599 CODE:
600 RETVAL = respipe [0];
601 OUTPUT:
602 RETVAL
603
604int
605poll_cb(...)
606 PROTOTYPE:
607 CODE:
608 RETVAL = poll_cb (); 1558 RETVAL = poll_cb ();
609 OUTPUT: 1559 OUTPUT:
610 RETVAL 1560 RETVAL
611 1561
612void
613poll_wait()
614 PROTOTYPE:
615 CODE:
616 if (nreqs)
617 poll_wait ();
618
619int 1562int
620nreqs() 1563poll_fileno ()
621 PROTOTYPE:
622 CODE: 1564 CODE:
623 RETVAL = nreqs; 1565 RETVAL = s_epipe_fd (&respipe);
624 OUTPUT: 1566 OUTPUT:
625 RETVAL 1567 RETVAL
626 1568
1569int
1570poll_cb (...)
1571 PROTOTYPE:
1572 CODE:
1573 RETVAL = poll_cb ();
1574 OUTPUT:
1575 RETVAL
1576
1577void
1578poll_wait ()
1579 CODE:
1580 poll_wait ();
1581
1582int
1583nreqs ()
1584 CODE:
1585 RETVAL = eio_nreqs ();
1586 OUTPUT:
1587 RETVAL
1588
1589int
1590nready ()
1591 CODE:
1592 RETVAL = eio_nready ();
1593 OUTPUT:
1594 RETVAL
1595
1596int
1597npending ()
1598 CODE:
1599 RETVAL = eio_npending ();
1600 OUTPUT:
1601 RETVAL
1602
1603int
1604nthreads ()
1605 CODE:
1606 RETVAL = eio_nthreads ();
1607 OUTPUT:
1608 RETVAL
1609
1610int
1611fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1612 CODE:
1613 RETVAL = posix_fadvise (fh, offset, length, advice);
1614 OUTPUT:
1615 RETVAL
1616
1617IV
1618sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1619 CODE:
1620 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1621 OUTPUT:
1622 RETVAL
1623
1624void
1625mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1626 PPCODE:
1627 sv_unmagic (scalar, MMAP_MAGIC);
1628{
1629 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1630 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1631 if (addr == (void *)-1)
1632 XSRETURN_NO;
1633
1634 sv_force_normal (scalar);
1635
1636 /* we store the length in mg_obj, as namlen is I32 :/ */
1637 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1638 ->mg_obj = (SV *)length;
1639
1640 SvUPGRADE (scalar, SVt_PV); /* nop... */
1641
1642 if (!(prot & PROT_WRITE))
1643 SvREADONLY_on (scalar);
1644
1645 if (SvLEN (scalar))
1646 Safefree (SvPVX (scalar));
1647
1648 SvPVX (scalar) = (char *)addr;
1649 SvCUR_set (scalar, length);
1650 SvLEN_set (scalar, 0);
1651 SvPOK_only (scalar);
1652
1653 XSRETURN_YES;
1654}
1655
1656void
1657munmap (SV *scalar)
1658 CODE:
1659 sv_unmagic (scalar, MMAP_MAGIC);
1660
1661int
1662madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1663 ALIAS:
1664 mprotect = 1
1665 CODE:
1666{
1667 STRLEN svlen;
1668 void *addr = SvPVbyte (scalar, svlen);
1669 size_t len = SvUV (length);
1670
1671 if (offset < 0)
1672 offset += svlen;
1673
1674 if (offset < 0 || offset > svlen)
1675 croak ("offset outside of scalar");
1676
1677 if (!SvOK (length) || len + offset > svlen)
1678 len = svlen - offset;
1679
1680 addr = (void *)(((intptr_t)addr) + offset);
1681 eio_page_align (&addr, &len);
1682
1683 switch (ix)
1684 {
1685 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1686 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1687 }
1688}
1689 OUTPUT:
1690 RETVAL
1691
1692int
1693munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1694 CODE:
1695{
1696 STRLEN svlen;
1697 void *addr = SvPVbyte (scalar, svlen);
1698 size_t len = SvUV (length);
1699
1700 if (offset < 0)
1701 offset += svlen;
1702
1703 if (offset < 0 || offset > svlen)
1704 croak ("offset outside of scalar");
1705
1706 if (!SvOK (length) || len + offset > svlen)
1707 len = svlen - offset;
1708
1709 addr = (void *)(((intptr_t)addr) + offset);
1710 eio_page_align (&addr, &len);
1711#if _POSIX_MEMLOCK_RANGE
1712 RETVAL = munlock (addr, len);
1713#else
1714 RETVAL = ((errno = ENOSYS), -1);
1715#endif
1716}
1717 OUTPUT:
1718 RETVAL
1719
1720int
1721munlockall ()
1722 CODE:
1723#if _POSIX_MEMLOCK
1724 munlockall ();
1725#else
1726 RETVAL = -1;
1727 errno = ENOSYS;
1728#endif
1729 OUTPUT:
1730 RETVAL
1731
1732void _on_next_submit (SV *cb)
1733 CODE:
1734 SvREFCNT_dec (on_next_submit);
1735 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1736
1737PROTOTYPES: DISABLE
1738
1739MODULE = IO::AIO PACKAGE = IO::AIO::WD
1740
1741void
1742DESTROY (SV *self)
1743 CODE:
1744{
1745 aio_wd wd = SvAIO_WD (self);
1746#if HAVE_AT
1747 SV *callback = &PL_sv_undef;
1748 dREQ; /* clobbers next_pri :/ */
1749 req->type = EIO_WD_CLOSE;
1750 req->wd = wd;
1751 REQ_SEND;
1752#else
1753 eio_wd_close_sync (wd);
1754#endif
1755}
1756
1757MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1758
1759void
1760cancel (aio_req_ornot req)
1761 CODE:
1762 eio_cancel (req);
1763
1764void
1765cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1766 PPCODE:
1767{
1768 if (GIMME_V != G_VOID)
1769 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1770
1771 if (items > 1)
1772 {
1773 SV *cb_cv =get_cb (callback);
1774
1775 SvREFCNT_dec (req->callback);
1776 req->callback = SvREFCNT_inc (cb_cv);
1777 }
1778}
1779
1780MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1781
1782void
1783add (aio_req grp, ...)
1784 PPCODE:
1785{
1786 int i;
1787
1788 if (grp->int1 == 2)
1789 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1790
1791 for (i = 1; i < items; ++i )
1792 {
1793 aio_req req;
1794
1795 if (GIMME_V != G_VOID)
1796 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1797
1798 req = SvAIO_REQ (ST (i));
1799
1800 if (req)
1801 eio_grp_add (grp, req);
1802 }
1803}
1804
1805void
1806cancel_subs (aio_req_ornot req)
1807 CODE:
1808 req_cancel_subs (req);
1809
1810void
1811result (aio_req grp, ...)
1812 CODE:
1813{
1814 int i;
1815 AV *av;
1816
1817 grp->errorno = errno;
1818
1819 av = newAV ();
1820 av_extend (av, items - 1);
1821
1822 for (i = 1; i < items; ++i )
1823 av_push (av, newSVsv (ST (i)));
1824
1825 SvREFCNT_dec (grp->sv1);
1826 grp->sv1 = (SV *)av;
1827}
1828
1829void
1830errno (aio_req grp, int errorno = errno)
1831 CODE:
1832 grp->errorno = errorno;
1833
1834void
1835limit (aio_req grp, int limit)
1836 CODE:
1837 eio_grp_limit (grp, limit);
1838
1839void
1840feed (aio_req grp, SV *callback=&PL_sv_undef)
1841 CODE:
1842{
1843 SvREFCNT_dec (grp->sv2);
1844 grp->sv2 = newSVsv (callback);
1845 grp->feed = aio_grp_feed;
1846
1847 if (grp->int2 <= 0)
1848 grp->int2 = 2;
1849
1850 eio_grp_limit (grp, grp->int2);
1851}
1852

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