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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.9 by root, Tue Jul 12 11:02:54 2005 UTC vs.
Revision 1.201 by root, Thu Sep 29 09:57:12 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#include <unistd.h> 16#include <limits.h>
8#include <fcntl.h> 17#include <fcntl.h>
9#include <signal.h>
10#include <sched.h> 18#include <sched.h>
11 19
12#include <pthread.h> 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
13#include <sys/syscall.h> 21# include <sys/mman.h>
22#endif
14 23
15typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 24/* perl namespace pollution */
16typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 25#undef VERSION
17typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */
18 26
19#if __ia64 27/* perl stupidly overrides readdir and maybe others */
20# define STACKSIZE 65536 28/* with thread-unsafe versions, imagine that :( */
29#undef readdir
30#undef opendir
31#undef closedir
32
33#ifdef _WIN32
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
21#else 67#else
22# 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)
23#endif 327#endif
24 328
25enum { 329enum {
26 REQ_QUIT, 330 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
27 REQ_OPEN, REQ_CLOSE,
28 REQ_READ, REQ_WRITE, REQ_READAHEAD,
29 REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,
30 REQ_FSYNC, REQ_FDATASYNC,
31}; 331};
32 332
33typedef struct aio_cb {
34 struct aio_cb *volatile next;
35
36 int type;
37
38 int fd;
39 off_t offset;
40 size_t length;
41 ssize_t result;
42 mode_t mode; /* open */
43 int errorno;
44 SV *data, *callback;
45 void *dataptr;
46 STRLEN dataoffset;
47
48 Stat_t *statdata;
49} aio_cb;
50
51typedef aio_cb *aio_req; 333typedef eio_req *aio_req;
334typedef eio_req *aio_req_ornot;
335typedef eio_wd aio_wd;
52 336
53static int started; 337static SV *on_next_submit;
54static int nreqs; 338static int next_pri = EIO_PRI_DEFAULT;
55static int max_outstanding = 1<<30; 339static int max_outstanding;
56static int respipe [2];
57 340
58static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 341static s_epipe respipe;
59static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
60static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
61 342
62static volatile aio_req reqs, reqe; /* queue start, queue end */ 343static void req_destroy (aio_req req);
63static volatile aio_req ress, rese; /* queue start, queue end */ 344static void req_cancel (aio_req req);
64 345
65static void 346static void
66poll_wait () 347want_poll (void)
67{ 348{
349 /* write a dummy byte to the pipe so fh becomes ready */
350 s_epipe_signal (&respipe);
351}
352
353static void
354done_poll (void)
355{
356 /* read any signals sent by the worker threads */
357 s_epipe_drain (&respipe);
358}
359
360/* must be called at most once */
361static SV *
362req_sv (aio_req req, HV *stash)
363{
68 if (!nreqs) 364 if (!req->self)
69 return; 365 {
366 req->self = (SV *)newHV ();
367 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
368 }
70 369
71 fd_set rfd; 370 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
72 FD_ZERO(&rfd); 371}
73 FD_SET(respipe [0], &rfd);
74 372
75 select (respipe [0] + 1, &rfd, 0, 0, 0); 373static SV *
374newSVaio_wd (aio_wd wd)
375{
376 return sv_bless (newRV_noinc (newSViv ((long)wd)), aio_wd_stash);
377}
378
379static aio_req
380SvAIO_REQ (SV *sv)
381{
382 MAGIC *mg;
383
384 if (!SvROK (sv)
385 || (SvSTASH (SvRV (sv)) != aio_grp_stash
386 && SvSTASH (SvRV (sv)) != aio_req_stash
387 && !sv_derived_from (sv, "IO::AIO::REQ")))
388 croak ("object of class IO::AIO::REQ expected");
389
390 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
391
392 return mg ? (aio_req)mg->mg_ptr : 0;
393}
394
395static aio_wd
396SvAIO_WD (SV *sv)
397{
398 if (!SvROK (sv)
399 || SvSTASH (SvRV (sv)) != aio_wd_stash
400 || SvTYPE (SvRV (sv)) != SVt_PVMG)
401 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
402
403 return (aio_wd)(long)SvIVX (SvRV (sv));
404}
405
406static void
407aio_grp_feed (aio_req grp)
408{
409 if (grp->sv2 && SvOK (grp->sv2))
410 {
411 dSP;
412
413 ENTER;
414 SAVETMPS;
415 PUSHMARK (SP);
416 XPUSHs (req_sv (grp, aio_grp_stash));
417 PUTBACK;
418 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
419 SPAGAIN;
420 FREETMPS;
421 LEAVE;
422 }
423}
424
425static void
426req_submit (eio_req *req)
427{
428 eio_submit (req);
429
430 if (expect_false (on_next_submit))
431 {
432 dSP;
433 SV *cb = sv_2mortal (on_next_submit);
434
435 on_next_submit = 0;
436
437 PUSHMARK (SP);
438 PUTBACK;
439 call_sv (cb, G_DISCARD | G_EVAL);
440 }
76} 441}
77 442
78static int 443static int
79poll_cb () 444req_invoke (eio_req *req)
80{ 445{
81 dSP; 446 if (req->flags & FLAG_SV2_RO_OFF)
82 int count = 0; 447 SvREADONLY_off (req->sv2);
83 aio_req req;
84
85 {
86 /* read and signals sent by the worker threads */
87 char buf [32];
88 while (read (respipe [0], buf, 32) > 0)
89 ;
90 }
91 448
92 for (;;) 449 if (!EIO_CANCELLED (req) && req->callback)
93 { 450 {
94 pthread_mutex_lock (&reslock); 451 dSP;
452 static SV *sv_result_cache; /* caches the result integer SV */
453 SV *sv_result;
95 454
96 req = ress; 455 ENTER;
456 SAVETMPS;
457 PUSHMARK (SP);
458 EXTEND (SP, 1);
97 459
98 if (ress) 460 /* do not recreate the result IV from scratch each time */
461 if (expect_true (sv_result_cache))
99 { 462 {
100 ress = ress->next; 463 sv_result = sv_result_cache; sv_result_cache = 0;
101 if (!ress) rese = 0; 464 SvIV_set (sv_result, req->result);
102 } 465 SvIOK_only (sv_result);
103
104 pthread_mutex_unlock (&reslock);
105
106 if (!req)
107 break;
108
109 nreqs--;
110
111 if (req->type == REQ_QUIT)
112 started--;
113 else
114 {
115 int errorno = errno;
116 errno = req->errorno;
117
118 if (req->type == REQ_READ)
119 SvCUR_set (req->data, req->dataoffset
120 + req->result > 0 ? req->result : 0);
121
122 if (req->data)
123 SvREFCNT_dec (req->data);
124
125 if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT)
126 {
127 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
128 PL_laststatval = req->result;
129 PL_statcache = *(req->statdata);
130
131 Safefree (req->statdata);
132 }
133
134 PUSHMARK (SP);
135 XPUSHs (sv_2mortal (newSViv (req->result)));
136
137 if (req->type == REQ_OPEN)
138 {
139 /* convert fd to fh */
140 SV *fh;
141
142 PUTBACK;
143 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
144 SPAGAIN;
145
146 fh = POPs;
147
148 PUSHMARK (SP);
149 XPUSHs (fh);
150 }
151
152 if (SvOK (req->callback))
153 {
154 PUTBACK;
155 call_sv (req->callback, G_VOID | G_EVAL);
156 SPAGAIN;
157 }
158
159 if (req->callback)
160 SvREFCNT_dec (req->callback);
161
162 errno = errorno;
163 count++;
164 }
165
166 Safefree (req);
167 }
168
169 return count;
170}
171
172static void *aio_proc(void *arg);
173
174static void
175start_thread (void)
176{
177 sigset_t fullsigset, oldsigset;
178 pthread_t tid;
179 pthread_attr_t attr;
180
181 pthread_attr_init (&attr);
182 pthread_attr_setstacksize (&attr, STACKSIZE);
183 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
184
185 sigfillset (&fullsigset);
186 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
187
188 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
189 started++;
190
191 sigprocmask (SIG_SETMASK, &oldsigset, 0);
192}
193
194static void
195send_req (aio_req req)
196{
197 nreqs++;
198
199 pthread_mutex_lock (&reqlock);
200
201 req->next = 0;
202
203 if (reqe)
204 {
205 reqe->next = req;
206 reqe = req;
207 }
208 else
209 reqe = reqs = req;
210
211 pthread_cond_signal (&reqwait);
212 pthread_mutex_unlock (&reqlock);
213
214 while (nreqs > max_outstanding)
215 {
216 poll_wait ();
217 poll_cb ();
218 }
219}
220
221static void
222end_thread (void)
223{
224 aio_req req;
225 New (0, req, 1, aio_cb);
226 req->type = REQ_QUIT;
227
228 send_req (req);
229}
230
231static void
232read_write (int dowrite, int fd, off_t offset, size_t length,
233 SV *data, STRLEN dataoffset, SV *callback)
234{
235 aio_req req;
236 STRLEN svlen;
237 char *svptr = SvPV (data, svlen);
238
239 SvUPGRADE (data, SVt_PV);
240 SvPOK_on (data);
241
242 if (dataoffset < 0)
243 dataoffset += svlen;
244
245 if (dataoffset < 0 || dataoffset > svlen)
246 croak ("data offset outside of string");
247
248 if (dowrite)
249 {
250 /* write: check length and adjust. */
251 if (length < 0 || length + dataoffset > svlen)
252 length = svlen - dataoffset;
253 }
254 else
255 {
256 /* read: grow scalar as necessary */
257 svptr = SvGROW (data, length + dataoffset);
258 }
259
260 if (length < 0)
261 croak ("length must not be negative");
262
263 Newz (0, req, 1, aio_cb);
264
265 if (!req)
266 croak ("out of memory during aio_req allocation");
267
268 req->type = dowrite ? REQ_WRITE : REQ_READ;
269 req->fd = fd;
270 req->offset = offset;
271 req->length = length;
272 req->data = SvREFCNT_inc (data);
273 req->dataptr = (char *)svptr + dataoffset;
274 req->callback = SvREFCNT_inc (callback);
275
276 send_req (req);
277}
278
279static void *
280aio_proc (void *thr_arg)
281{
282 aio_req req;
283 int type;
284
285 do
286 {
287 pthread_mutex_lock (&reqlock);
288
289 for (;;)
290 {
291 req = reqs;
292
293 if (reqs)
294 {
295 reqs = reqs->next;
296 if (!reqs) reqe = 0;
297 }
298
299 if (req)
300 break;
301
302 pthread_cond_wait (&reqwait, &reqlock);
303 }
304
305 pthread_mutex_unlock (&reqlock);
306
307 errno = 0; /* strictly unnecessary */
308
309 type = req->type;
310
311 switch (type)
312 {
313 case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break;
314 case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, req->offset); break;
315#if SYS_readahead
316 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
317#else
318 case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
319#endif
320
321 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
322 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
323 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
324
325 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
326 case REQ_CLOSE: req->result = close (req->fd); break;
327 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
328
329 case REQ_FSYNC: req->result = fsync (req->fd); break;
330 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
331
332 case REQ_QUIT:
333 break;
334
335 default:
336 req->result = ENOSYS;
337 break;
338 }
339
340 req->errorno = errno;
341
342 pthread_mutex_lock (&reslock);
343
344 req->next = 0;
345
346 if (rese)
347 {
348 rese->next = req;
349 rese = req;
350 } 466 }
351 else 467 else
352 { 468 {
353 rese = ress = req; 469 sv_result = newSViv (req->result);
354 470 SvREADONLY_on (sv_result);
355 /* write a dummy byte to the pipe so fh becomes ready */
356 write (respipe [1], &respipe, 1);
357 } 471 }
358 472
359 pthread_mutex_unlock (&reslock); 473 switch (req->type)
474 {
475 case EIO_WD_OPEN:
476 PUSHs (sv_2mortal (newSVaio_wd (req->wd)));
477 break;
478
479 case EIO_READDIR:
480 {
481 SV *rv = &PL_sv_undef;
482
483 if (req->result >= 0)
484 {
485 int i;
486 char *names = (char *)req->ptr2;
487 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
488 AV *av = newAV ();
489
490 av_extend (av, req->result - 1);
491
492 for (i = 0; i < req->result; ++i)
493 {
494 if (req->int1 & EIO_READDIR_DENTS)
495 {
496 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
497
498 if (req->int1 & EIO_READDIR_CUSTOM2)
499 {
500 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
501 AV *avent = newAV ();
502
503 av_extend (avent, 2);
504
505 if (!sv_type [ent->type])
506 {
507 sv_type [ent->type] = newSViv (ent->type);
508 SvREADONLY_on (sv_type [ent->type]);
509 }
510
511 av_store (avent, 0, namesv);
512 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
513 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
514
515 av_store (av, i, newRV_noinc ((SV *)avent));
516 }
517 else
518 av_store (av, i, namesv);
519
520 ++ent;
521 }
522 else
523 {
524 SV *name = newSVpv (names, 0);
525 av_store (av, i, name);
526 names += SvCUR (name) + 1;
527 }
528 }
529
530 rv = sv_2mortal (newRV_noinc ((SV *)av));
531 }
532
533 PUSHs (rv);
534
535 if (req->int1 & EIO_READDIR_CUSTOM1)
536 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
537 }
538 break;
539
540 case EIO_OPEN:
541 {
542 /* convert fd to fh */
543 SV *fh = &PL_sv_undef;
544
545 if (req->result >= 0)
546 {
547 GV *gv = (GV *)sv_newmortal ();
548 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
549 char sym [64];
550 int symlen;
551
552 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
553 gv_init (gv, aio_stash, sym, symlen, 0);
554
555 symlen = snprintf (
556 sym,
557 sizeof (sym),
558 "%s&=%d",
559 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
560 (int)req->result
561 );
562
563 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
564 fh = (SV *)gv;
565 }
566
567 PUSHs (fh);
568 }
569 break;
570
571 case EIO_STATVFS:
572 case EIO_FSTATVFS:
573 {
574 SV *rv = &PL_sv_undef;
575
576#ifndef _WIN32
577 if (req->result >= 0)
578 {
579 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
580 HV *hv = newHV ();
581
582 rv = sv_2mortal (newRV_noinc ((SV *)hv));
583
584 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
585 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
586 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
587 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
588 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
589 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
590 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
591 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
592 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
593 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
594 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
595 }
596#endif
597
598 PUSHs (rv);
599 }
600
601 break;
602
603 case EIO_GROUP:
604 req->int1 = 2; /* mark group as finished */
605
606 if (req->sv1)
607 {
608 int i;
609 AV *av = (AV *)req->sv1;
610
611 EXTEND (SP, AvFILL (av) + 1);
612 for (i = 0; i <= AvFILL (av); ++i)
613 PUSHs (*av_fetch (av, i, 0));
614 }
615 break;
616
617 case EIO_NOP:
618 case EIO_BUSY:
619 break;
620
621 case EIO_READLINK:
622 case EIO_REALPATH:
623 if (req->result > 0)
624 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
625 break;
626
627 case EIO_STAT:
628 case EIO_LSTAT:
629 case EIO_FSTAT:
630 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
631
632 if (!(PL_laststatval = req->result))
633 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
634 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
635
636 PUSHs (sv_result);
637 break;
638
639 case EIO_READ:
640 {
641 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
642 *SvEND (req->sv2) = 0;
643 SvPOK_only (req->sv2);
644 SvSETMAGIC (req->sv2);
645 PUSHs (sv_result);
646 }
647 break;
648
649 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
650 if (req->result > 0)
651 SvIV_set (sv_result, 0);
652 /* FALLTHROUGH */
653
654 default:
655 PUSHs (sv_result);
656 break;
657 }
658
659 errno = req->errorno;
660
661 PUTBACK;
662 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
663 SPAGAIN;
664
665 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
666 SvREFCNT_dec (sv_result);
667 else
668 sv_result_cache = sv_result;
669
670 FREETMPS;
671 LEAVE;
672
673 PUTBACK;
360 } 674 }
361 while (type != REQ_QUIT); 675
676 return !!SvTRUE (ERRSV);
677}
678
679static void
680req_destroy (aio_req req)
681{
682 if (req->self)
683 {
684 sv_unmagic (req->self, PERL_MAGIC_ext);
685 SvREFCNT_dec (req->self);
686 }
687
688 SvREFCNT_dec (req->sv1);
689 SvREFCNT_dec (req->sv2);
690 SvREFCNT_dec (req->sv3);
691 SvREFCNT_dec (req->sv4);
692 SvREFCNT_dec (req->callback);
693
694 Safefree (req);
695}
696
697static void
698req_cancel_subs (aio_req grp)
699{
700 if (grp->type != EIO_GROUP)
701 return;
702
703 SvREFCNT_dec (grp->sv2);
704 grp->sv2 = 0;
705
706 eio_grp_cancel (grp);
707}
708
709static void ecb_cold
710create_respipe (void)
711{
712 if (s_epipe_renew (&respipe))
713 croak ("IO::AIO: unable to initialize result pipe");
714}
715
716static void
717poll_wait (void)
718{
719 while (eio_nreqs ())
720 {
721 int size;
722
723 X_LOCK (reslock);
724 size = res_queue.size;
725 X_UNLOCK (reslock);
726
727 if (size)
728 return;
729
730 etp_maybe_start_thread ();
731
732 s_epipe_wait (&respipe);
733 }
734}
735
736static int
737poll_cb (void)
738{
739 for (;;)
740 {
741 int res = eio_poll ();
742
743 if (res > 0)
744 croak (0);
745
746 if (!max_outstanding || max_outstanding > eio_nreqs ())
747 return res;
748
749 poll_wait ();
750 }
751}
752
753static void ecb_cold
754reinit (void)
755{
756 create_respipe ();
757
758 if (eio_init (want_poll, done_poll) < 0)
759 croak ("IO::AIO: unable to initialise eio library");
760}
761
762/*****************************************************************************/
763
764#if !_POSIX_MAPPED_FILES
765# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
766# define munmap(addr,length) (errno = ENOSYS, -1)
767#endif
768
769#if !_POSIX_MEMORY_PROTECTION
770# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
771# define PROT_NONE 0
772# define PROT_WRITE 0
773# define MAP_PRIVATE 0
774# define MAP_SHARED 0
775# define MAP_FIXED 0
776#endif
777
778#define MMAP_MAGIC PERL_MAGIC_ext
779
780static int ecb_cold
781mmap_free (pTHX_ SV *sv, MAGIC *mg)
782{
783 int old_errno = errno;
784 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
785 errno = old_errno;
786
787 mg->mg_obj = 0; /* just in case */
788
789 SvREADONLY_off (sv);
790
791 if (SvPVX (sv) != mg->mg_ptr)
792 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
793
794 SvCUR_set (sv, 0);
795 SvPVX (sv) = 0;
796 SvOK_off (sv);
362 797
363 return 0; 798 return 0;
364} 799}
365 800
801static MGVTBL mmap_vtbl = {
802 0, 0, 0, 0, mmap_free
803};
804
805/*****************************************************************************/
806
807static SV *
808get_cb (SV *cb_sv)
809{
810 SvGETMAGIC (cb_sv);
811 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
812}
813
814#define dREQ \
815 SV *cb_cv; \
816 aio_req req; \
817 int req_pri = next_pri; \
818 next_pri = EIO_PRI_DEFAULT; \
819 \
820 cb_cv = get_cb (callback); \
821 \
822 Newz (0, req, 1, eio_req); \
823 if (!req) \
824 croak ("out of memory during eio_req allocation"); \
825 \
826 req->callback = SvREFCNT_inc (cb_cv); \
827 req->pri = req_pri
828
829#define REQ_SEND \
830 PUTBACK; \
831 req_submit (req); \
832 SPAGAIN; \
833 \
834 if (GIMME_V != G_VOID) \
835 XPUSHs (req_sv (req, aio_req_stash));
836
837ecb_inline void
838req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
839{
840 if (expect_false (SvROK (path)))
841 {
842 AV *av = (AV *)SvRV (path);
843 SV *wdob;
844
845 if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)
846 croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");
847
848 path = AvARRAY (av)[1];
849 wdob = AvARRAY (av)[0];
850
851 if (SvOK (wdob))
852 {
853 *wd = SvAIO_WD (wdob);
854 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
855 }
856 else
857 *wd = EIO_INVALID_WD;
858 }
859
860 *pathsv = newSVsv (path);
861 *ptr = SvPVbyte_nolen (*pathsv);
862}
863
864static void ecb_noinline
865req_set_path1 (aio_req req, SV *path)
866{
867 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
868}
869
870static void ecb_noinline
871req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
872{
873 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
874
875 switch (SvTYPE (rv))
876 {
877 case SVt_PVIO:
878 case SVt_PVLV:
879 case SVt_PVGV:
880 req->type = type_fh;
881 req->sv1 = newSVsv (fh_or_path);
882 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
883 break;
884
885 default:
886 req->type = type_path;
887 req_set_path1 (req, fh_or_path);
888 break;
889 }
890}
891
366MODULE = IO::AIO PACKAGE = IO::AIO 892MODULE = IO::AIO PACKAGE = IO::AIO
367 893
368PROTOTYPES: ENABLE 894PROTOTYPES: ENABLE
369 895
370BOOT: 896BOOT:
371{ 897{
372 if (pipe (respipe)) 898 static const struct {
373 croak ("unable to initialize result pipe"); 899 const char *name;
900 IV iv;
901 } *civ, const_iv[] = {
902# define const_niv(name, value) { # name, (IV) value },
903# define const_iv(name) { # name, (IV) name },
904# define const_eio(name) { # name, (IV) EIO_ ## name },
905 const_iv (EXDEV)
906 const_iv (ENOSYS)
907 const_iv (O_RDONLY)
908 const_iv (O_WRONLY)
909 const_iv (O_RDWR)
910 const_iv (O_CREAT)
911 const_iv (O_TRUNC)
912 const_iv (O_EXCL)
913 const_iv (O_APPEND)
374 914
375 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 915 const_iv (O_ASYNC)
376 croak ("cannot set result pipe to nonblocking mode"); 916 const_iv (O_DIRECT)
917 const_iv (O_NOATIME)
377 918
378 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 919 const_iv (O_CLOEXEC)
379 croak ("cannot set result pipe to nonblocking mode"); 920 const_iv (O_NOCTTY)
380} 921 const_iv (O_NOFOLLOW)
922 const_iv (O_NONBLOCK)
923 const_iv (O_EXEC)
924 const_iv (O_SEARCH)
925 const_iv (O_DIRECTORY)
926 const_iv (O_DSYNC)
927 const_iv (O_RSYNC)
928 const_iv (O_SYNC)
929 const_iv (O_TTY_INIT)
381 930
931 const_iv (S_IFIFO)
932 const_iv (S_IFCHR)
933 const_iv (S_IFBLK)
934 const_iv (S_IFLNK)
935 const_iv (S_IFREG)
936 const_iv (S_IFDIR)
937 const_iv (S_IFWHT)
938 const_iv (S_IFSOCK)
939 const_iv (S_IFMT)
940
941 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
942 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
943 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
944 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
945 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
946 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
947
948 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
949 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
950 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
951 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
952 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
953
954 const_iv (ST_RDONLY)
955 const_iv (ST_NOSUID)
956 const_iv (ST_NODEV)
957 const_iv (ST_NOEXEC)
958 const_iv (ST_SYNCHRONOUS)
959 const_iv (ST_MANDLOCK)
960 const_iv (ST_WRITE)
961 const_iv (ST_APPEND)
962 const_iv (ST_IMMUTABLE)
963 const_iv (ST_NOATIME)
964 const_iv (ST_NODIRATIME)
965 const_iv (ST_RELATIME)
966
967 const_iv (PROT_NONE)
968 const_iv (PROT_EXEC)
969 const_iv (PROT_READ)
970 const_iv (PROT_WRITE)
971
972 /*const_iv (MAP_FIXED)*/
973 const_iv (MAP_PRIVATE)
974 const_iv (MAP_SHARED)
975 const_iv (MAP_ANONYMOUS)
976
977 /* linuxish */
978 const_iv (MAP_HUGETLB)
979 const_iv (MAP_LOCKED)
980 const_iv (MAP_NORESERVE)
981 const_iv (MAP_POPULATE)
982 const_iv (MAP_NONBLOCK)
983
984 const_eio (MCL_FUTURE)
985 const_eio (MCL_CURRENT)
986
987 const_eio (MS_ASYNC)
988 const_eio (MS_INVALIDATE)
989 const_eio (MS_SYNC)
990
991 const_eio (MT_MODIFY)
992
993 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
994 const_eio (SYNC_FILE_RANGE_WRITE)
995 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
996
997 const_eio (FALLOC_FL_KEEP_SIZE)
998
999 const_eio (READDIR_DENTS)
1000 const_eio (READDIR_DIRS_FIRST)
1001 const_eio (READDIR_STAT_ORDER)
1002 const_eio (READDIR_FOUND_UNKNOWN)
1003
1004 const_eio (DT_UNKNOWN)
1005 const_eio (DT_FIFO)
1006 const_eio (DT_CHR)
1007 const_eio (DT_DIR)
1008 const_eio (DT_BLK)
1009 const_eio (DT_REG)
1010 const_eio (DT_LNK)
1011 const_eio (DT_SOCK)
1012 const_eio (DT_WHT)
1013 };
1014
1015 aio_stash = gv_stashpv ("IO::AIO" , 1);
1016 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1017 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1018 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1019
1020 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1021 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1022
1023 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1024
1025 reinit ();
1026}
1027
382void 1028void
383min_parallel(nthreads) 1029reinit ()
384 int nthreads 1030 PROTOTYPE:
1031
1032void
1033max_poll_reqs (unsigned int nreqs)
385 PROTOTYPE: $ 1034 PROTOTYPE: $
386 CODE: 1035 CODE:
387 while (nthreads > started) 1036 eio_set_max_poll_reqs (nreqs);
388 start_thread ();
389 1037
390void 1038void
391max_parallel(nthreads) 1039max_poll_time (double nseconds)
392 int nthreads
393 PROTOTYPE: $ 1040 PROTOTYPE: $
394 CODE: 1041 CODE:
1042 eio_set_max_poll_time (nseconds);
1043
1044void
1045min_parallel (unsigned int nthreads)
1046 PROTOTYPE: $
1047 CODE:
1048 eio_set_min_parallel (nthreads);
1049
1050void
1051max_parallel (unsigned int nthreads)
1052 PROTOTYPE: $
1053 CODE:
1054 eio_set_max_parallel (nthreads);
1055
1056void
1057max_idle (unsigned int nthreads)
1058 PROTOTYPE: $
1059 CODE:
1060 eio_set_max_idle (nthreads);
1061
1062void
1063idle_timeout (unsigned int seconds)
1064 PROTOTYPE: $
1065 CODE:
1066 eio_set_idle_timeout (seconds);
1067
1068void
1069max_outstanding (unsigned int maxreqs)
1070 PROTOTYPE: $
1071 CODE:
1072 max_outstanding = maxreqs;
1073
1074void
1075aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1076 PPCODE:
395{ 1077{
396 int cur = started; 1078 dREQ;
397 while (cur > nthreads) 1079
398 { 1080 req->type = EIO_WD_OPEN;
399 end_thread (); 1081 req_set_path1 (req, pathname);
1082
1083 REQ_SEND;
1084}
1085
1086void
1087aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1088 PPCODE:
1089{
1090 dREQ;
1091
1092 req->type = EIO_OPEN;
1093 req_set_path1 (req, pathname);
1094 req->int1 = flags;
1095 req->int2 = mode;
1096
1097 REQ_SEND;
1098}
1099
1100void
1101aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1102 ALIAS:
1103 aio_fsync = EIO_FSYNC
1104 aio_fdatasync = EIO_FDATASYNC
1105 aio_syncfs = EIO_SYNCFS
1106 PPCODE:
1107{
1108 int fd = s_fileno_croak (fh, 0);
1109 dREQ;
1110
1111 req->type = ix;
1112 req->sv1 = newSVsv (fh);
1113 req->int1 = fd;
1114
1115 REQ_SEND (req);
1116}
1117
1118void
1119aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1120 PPCODE:
1121{
1122 int fd = s_fileno_croak (fh, 0);
1123 dREQ;
1124
1125 req->type = EIO_SYNC_FILE_RANGE;
1126 req->sv1 = newSVsv (fh);
1127 req->int1 = fd;
1128 req->offs = offset;
1129 req->size = nbytes;
1130 req->int2 = flags;
1131
1132 REQ_SEND (req);
1133}
1134
1135void
1136aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1137 PPCODE:
1138{
1139 int fd = s_fileno_croak (fh, 0);
1140 dREQ;
1141
1142 req->type = EIO_FALLOCATE;
1143 req->sv1 = newSVsv (fh);
1144 req->int1 = fd;
1145 req->int2 = mode;
1146 req->offs = offset;
1147 req->size = len;
1148
1149 REQ_SEND (req);
1150}
1151
1152void
1153aio_close (SV *fh, SV *callback=&PL_sv_undef)
1154 PPCODE:
1155{
1156 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1157 int fd = s_fileno_croak (fh, 0);
1158 dREQ;
1159
1160 if (expect_false (close_fd < 0))
1161 {
1162 int pipefd [2];
1163
1164 if (
1165#ifdef _WIN32
1166 _pipe (pipefd, 1, _O_BINARY) < 0
1167#else
1168 pipe (pipefd) < 0
1169 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1170#endif
1171 || close (pipefd [1]) < 0
400 cur--; 1172 )
1173 abort (); /*D*/
1174
1175 close_fd = pipefd [0];
401 } 1176 }
402 1177
403 while (started > nthreads) 1178 req->type = EIO_DUP2;
1179 req->int1 = close_fd;
1180 req->sv2 = newSVsv (fh);
1181 req->int2 = fd;
1182
1183 REQ_SEND (req);
1184}
1185
1186void
1187aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1188 ALIAS:
1189 aio_read = EIO_READ
1190 aio_write = EIO_WRITE
1191 PPCODE:
1192{
1193 STRLEN svlen;
1194 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1195 char *svptr = SvPVbyte (data, svlen);
1196 UV len = SvUV (length);
1197
1198 if (dataoffset < 0)
1199 dataoffset += svlen;
1200
1201 if (dataoffset < 0 || dataoffset > svlen)
1202 croak ("dataoffset outside of data scalar");
1203
1204 if (ix == EIO_WRITE)
1205 {
1206 /* write: check length and adjust. */
1207 if (!SvOK (length) || len + dataoffset > svlen)
1208 len = svlen - dataoffset;
1209 }
1210 else
1211 {
1212 /* read: check type and grow scalar as necessary */
1213 SvUPGRADE (data, SVt_PV);
1214 svptr = SvGROW (data, len + dataoffset + 1);
1215 }
1216
1217 {
1218 dREQ;
1219
1220 req->type = ix;
1221 req->sv1 = newSVsv (fh);
1222 req->int1 = fd;
1223 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1224 req->size = len;
1225 req->sv2 = SvREFCNT_inc (data);
1226 req->ptr2 = (char *)svptr + dataoffset;
1227 req->stroffset = dataoffset;
1228
1229 if (!SvREADONLY (data))
1230 {
1231 SvREADONLY_on (data);
1232 req->flags |= FLAG_SV2_RO_OFF;
1233 }
1234
1235 REQ_SEND;
1236 }
1237}
1238
1239void
1240aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1241 ALIAS:
1242 aio_readlink = EIO_READLINK
1243 aio_realpath = EIO_REALPATH
1244 PPCODE:
1245{
1246 dREQ;
1247
1248 req->type = ix;
1249 req_set_path1 (req, pathname);
1250
1251 REQ_SEND;
1252}
1253
1254void
1255aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1256 PPCODE:
1257{
1258 int ifd = s_fileno_croak (in_fh , 0);
1259 int ofd = s_fileno_croak (out_fh, 1);
1260 dREQ;
1261
1262 req->type = EIO_SENDFILE;
1263 req->sv1 = newSVsv (out_fh);
1264 req->int1 = ofd;
1265 req->sv2 = newSVsv (in_fh);
1266 req->int2 = ifd;
1267 req->offs = in_offset;
1268 req->size = length;
1269
1270 REQ_SEND;
1271}
1272
1273void
1274aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1275 PPCODE:
1276{
1277 int fd = s_fileno_croak (fh, 0);
1278 dREQ;
1279
1280 req->type = EIO_READAHEAD;
1281 req->sv1 = newSVsv (fh);
1282 req->int1 = fd;
1283 req->offs = offset;
1284 req->size = length;
1285
1286 REQ_SEND;
1287}
1288
1289void
1290aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1291 ALIAS:
1292 aio_stat = EIO_STAT
1293 aio_lstat = EIO_LSTAT
1294 aio_statvfs = EIO_STATVFS
1295 PPCODE:
1296{
1297 dREQ;
1298
1299 req->sv1 = newSVsv (fh_or_path);
1300 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1301 REQ_SEND;
1302}
1303
1304UV
1305major (UV dev)
1306 ALIAS:
1307 minor = 1
1308 CODE:
1309 RETVAL = ix ? major (dev) : minor (dev);
1310 OUTPUT:
1311 RETVAL
1312
1313UV
1314makedev (UV maj, UV min)
1315 CODE:
1316 RETVAL = makedev (maj, min);
1317 OUTPUT:
1318 RETVAL
1319
1320void
1321aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1322 PPCODE:
1323{
1324 dREQ;
1325
1326 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1327 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1328 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1329
1330 REQ_SEND;
1331}
1332
1333void
1334aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1335 PPCODE:
1336{
1337 dREQ;
1338
1339 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1340 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1341
1342 REQ_SEND;
1343}
1344
1345void
1346aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1347 PPCODE:
1348{
1349 dREQ;
1350
1351 req->int2 = mode;
1352 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1353
1354 REQ_SEND;
1355}
1356
1357void
1358aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1359 PPCODE:
1360{
1361 dREQ;
1362
1363 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1364 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1365 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1366
1367 REQ_SEND;
1368}
1369
1370void
1371aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1372 PPCODE:
1373{
1374 dREQ;
1375
1376 req->type = EIO_READDIR;
1377 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1378
1379 if (flags & EIO_READDIR_DENTS)
1380 req->int1 |= EIO_READDIR_CUSTOM2;
1381
1382 req_set_path1 (req, pathname);
1383
1384 REQ_SEND;
1385}
1386
1387void
1388aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1389 PPCODE:
1390{
1391 dREQ;
1392
1393 req->type = EIO_MKDIR;
1394 req->int2 = mode;
1395 req_set_path1 (req, pathname);
1396
1397 REQ_SEND;
1398}
1399
1400void
1401aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1402 ALIAS:
1403 aio_unlink = EIO_UNLINK
1404 aio_rmdir = EIO_RMDIR
1405 aio_readdir = EIO_READDIR
1406 PPCODE:
1407{
1408 dREQ;
1409
1410 req->type = ix;
1411 req_set_path1 (req, pathname);
1412
1413 REQ_SEND;
1414}
1415
1416void
1417aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1418 ALIAS:
1419 aio_link = EIO_LINK
1420 aio_symlink = EIO_SYMLINK
1421 aio_rename = EIO_RENAME
1422 PPCODE:
1423{
1424 dREQ;
1425 eio_wd wd2 = 0;
1426
1427 req->type = ix;
1428 req_set_path1 (req, oldpath);
1429 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1430 req->int3 = (long)wd2;
1431
1432 REQ_SEND;
1433}
1434
1435void
1436aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1437 PPCODE:
1438{
1439 dREQ;
1440
1441 req->type = EIO_MKNOD;
1442 req->int2 = (mode_t)mode;
1443 req->offs = dev;
1444 req_set_path1 (req, pathname);
1445
1446 REQ_SEND;
1447}
1448
1449void
1450aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1451 ALIAS:
1452 aio_mtouch = EIO_MTOUCH
1453 aio_msync = EIO_MSYNC
1454 PPCODE:
1455{
1456 STRLEN svlen;
1457 char *svptr = SvPVbyte (data, svlen);
1458 UV len = SvUV (length);
1459
1460 if (offset < 0)
1461 offset += svlen;
1462
1463 if (offset < 0 || offset > svlen)
1464 croak ("offset outside of scalar");
1465
1466 if (!SvOK (length) || len + offset > svlen)
1467 len = svlen - offset;
1468
1469 {
1470 dREQ;
1471
1472 req->type = ix;
1473 req->sv2 = SvREFCNT_inc (data);
1474 req->ptr2 = (char *)svptr + offset;
1475 req->size = len;
1476 req->int1 = flags;
1477
1478 REQ_SEND;
1479 }
1480}
1481
1482void
1483aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1484 PPCODE:
1485{
1486 STRLEN svlen;
1487 char *svptr = SvPVbyte (data, svlen);
1488 UV len = SvUV (length);
1489
1490 if (offset < 0)
1491 offset += svlen;
1492
1493 if (offset < 0 || offset > svlen)
1494 croak ("offset outside of scalar");
1495
1496 if (!SvOK (length) || len + offset > svlen)
1497 len = svlen - offset;
1498
1499 {
1500 dREQ;
1501
1502 req->type = EIO_MLOCK;
1503 req->sv2 = SvREFCNT_inc (data);
1504 req->ptr2 = (char *)svptr + offset;
1505 req->size = len;
1506
1507 REQ_SEND;
1508 }
1509}
1510
1511void
1512aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1513 PPCODE:
1514{
1515 dREQ;
1516
1517 req->type = EIO_MLOCKALL;
1518 req->int1 = flags;
1519
1520 REQ_SEND;
1521}
1522
1523void
1524aio_busy (double delay, SV *callback=&PL_sv_undef)
1525 PPCODE:
1526{
1527 dREQ;
1528
1529 req->type = EIO_BUSY;
1530 req->nv1 = delay < 0. ? 0. : delay;
1531
1532 REQ_SEND;
1533}
1534
1535void
1536aio_group (SV *callback=&PL_sv_undef)
1537 PPCODE:
1538{
1539 dREQ;
1540
1541 req->type = EIO_GROUP;
1542
1543 req_submit (req);
1544 XPUSHs (req_sv (req, aio_grp_stash));
1545}
1546
1547void
1548aio_nop (SV *callback=&PL_sv_undef)
1549 ALIAS:
1550 aio_nop = EIO_NOP
1551 aio_sync = EIO_SYNC
1552 PPCODE:
1553{
1554 dREQ;
1555
1556 req->type = ix;
1557
1558 REQ_SEND;
1559}
1560
1561int
1562aioreq_pri (int pri = 0)
1563 CODE:
1564 RETVAL = next_pri;
1565 if (items > 0)
1566 {
1567 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1568 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1569 next_pri = pri;
1570 }
1571 OUTPUT:
1572 RETVAL
1573
1574void
1575aioreq_nice (int nice = 0)
1576 CODE:
1577 nice = next_pri - nice;
1578 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1579 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1580 next_pri = nice;
1581
1582void
1583flush ()
1584 CODE:
1585 while (eio_nreqs ())
404 { 1586 {
405 poll_wait (); 1587 poll_wait ();
406 poll_cb (); 1588 poll_cb ();
407 } 1589 }
408}
409 1590
410int 1591int
411max_outstanding(nreqs)
412 int nreqs
413 PROTOTYPE: $
414 CODE:
415 RETVAL = max_outstanding;
416 max_outstanding = nreqs;
417
418void
419aio_open(pathname,flags,mode,callback=&PL_sv_undef)
420 SV * pathname
421 int flags
422 int mode
423 SV * callback
424 PROTOTYPE: $$$;$
425 CODE:
426{
427 aio_req req;
428
429 Newz (0, req, 1, aio_cb);
430
431 if (!req)
432 croak ("out of memory during aio_req allocation");
433
434 req->type = REQ_OPEN;
435 req->data = newSVsv (pathname);
436 req->dataptr = SvPV_nolen (req->data);
437 req->fd = flags;
438 req->mode = mode;
439 req->callback = SvREFCNT_inc (callback);
440
441 send_req (req);
442}
443
444void
445aio_close(fh,callback=&PL_sv_undef)
446 InputStream fh
447 SV * callback
448 PROTOTYPE: $;$
449 ALIAS:
450 aio_close = REQ_CLOSE
451 aio_fsync = REQ_FSYNC
452 aio_fdatasync = REQ_FDATASYNC
453 CODE:
454{
455 aio_req req;
456
457 Newz (0, req, 1, aio_cb);
458
459 if (!req)
460 croak ("out of memory during aio_req allocation");
461
462 req->type = ix;
463 req->fd = PerlIO_fileno (fh);
464 req->callback = SvREFCNT_inc (callback);
465
466 send_req (req);
467}
468
469void
470aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
471 InputStream fh
472 UV offset
473 IV length
474 SV * data
475 IV dataoffset
476 SV * callback
477 PROTOTYPE: $$$$$;$
478 CODE:
479 read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
480
481void
482aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
483 OutputStream fh
484 UV offset
485 IV length
486 SV * data
487 IV dataoffset
488 SV * callback
489 PROTOTYPE: $$$$$;$
490 CODE:
491 read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
492
493void
494aio_readahead(fh,offset,length,callback=&PL_sv_undef)
495 InputStream fh
496 UV offset
497 IV length
498 SV * callback
499 PROTOTYPE: $$$;$
500 CODE:
501{
502 aio_req req;
503
504 if (length < 0)
505 croak ("length must not be negative");
506
507 Newz (0, req, 1, aio_cb);
508
509 if (!req)
510 croak ("out of memory during aio_req allocation");
511
512 req->type = REQ_READAHEAD;
513 req->fd = PerlIO_fileno (fh);
514 req->offset = offset;
515 req->length = length;
516 req->callback = SvREFCNT_inc (callback);
517
518 send_req (req);
519}
520
521void
522aio_stat(fh_or_path,callback=&PL_sv_undef)
523 SV * fh_or_path
524 SV * callback
525 ALIAS:
526 aio_stat = REQ_STAT
527 aio_lstat = REQ_LSTAT
528 CODE:
529{
530 aio_req req;
531
532 Newz (0, req, 1, aio_cb);
533
534 if (!req)
535 croak ("out of memory during aio_req allocation");
536
537 New (0, req->statdata, 1, Stat_t);
538
539 if (!req->statdata)
540 croak ("out of memory during aio_req->statdata allocation");
541
542 if (SvPOK (fh_or_path))
543 {
544 req->type = ix;
545 req->data = newSVsv (fh_or_path);
546 req->dataptr = SvPV_nolen (req->data);
547 }
548 else
549 {
550 req->type = REQ_FSTAT;
551 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
552 }
553
554 req->callback = SvREFCNT_inc (callback);
555
556 send_req (req);
557}
558
559void
560aio_unlink(pathname,callback=&PL_sv_undef)
561 SV * pathname
562 SV * callback
563 CODE:
564{
565 aio_req req;
566
567 Newz (0, req, 1, aio_cb);
568
569 if (!req)
570 croak ("out of memory during aio_req allocation");
571
572 req->type = REQ_UNLINK;
573 req->data = newSVsv (pathname);
574 req->dataptr = SvPV_nolen (req->data);
575 req->callback = SvREFCNT_inc (callback);
576
577 send_req (req);
578}
579
580void
581flush()
582 PROTOTYPE:
583 CODE:
584 while (nreqs)
585 {
586 poll_wait ();
587 poll_cb ();
588 }
589
590void
591poll() 1592poll ()
592 PROTOTYPE:
593 CODE: 1593 CODE:
594 if (nreqs)
595 {
596 poll_wait (); 1594 poll_wait ();
597 poll_cb ();
598 }
599
600int
601poll_fileno()
602 PROTOTYPE:
603 CODE:
604 RETVAL = respipe [0];
605 OUTPUT:
606 RETVAL
607
608int
609poll_cb(...)
610 PROTOTYPE:
611 CODE:
612 RETVAL = poll_cb (); 1595 RETVAL = poll_cb ();
613 OUTPUT: 1596 OUTPUT:
614 RETVAL 1597 RETVAL
615 1598
616void
617poll_wait()
618 PROTOTYPE:
619 CODE:
620 if (nreqs)
621 poll_wait ();
622
623int 1599int
624nreqs() 1600poll_fileno ()
625 PROTOTYPE:
626 CODE: 1601 CODE:
627 RETVAL = nreqs; 1602 RETVAL = s_epipe_fd (&respipe);
628 OUTPUT: 1603 OUTPUT:
629 RETVAL 1604 RETVAL
630 1605
1606int
1607poll_cb (...)
1608 PROTOTYPE:
1609 CODE:
1610 RETVAL = poll_cb ();
1611 OUTPUT:
1612 RETVAL
1613
1614void
1615poll_wait ()
1616 CODE:
1617 poll_wait ();
1618
1619int
1620nreqs ()
1621 CODE:
1622 RETVAL = eio_nreqs ();
1623 OUTPUT:
1624 RETVAL
1625
1626int
1627nready ()
1628 CODE:
1629 RETVAL = eio_nready ();
1630 OUTPUT:
1631 RETVAL
1632
1633int
1634npending ()
1635 CODE:
1636 RETVAL = eio_npending ();
1637 OUTPUT:
1638 RETVAL
1639
1640int
1641nthreads ()
1642 CODE:
1643 RETVAL = eio_nthreads ();
1644 OUTPUT:
1645 RETVAL
1646
1647int
1648fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1649 CODE:
1650 RETVAL = posix_fadvise (fh, offset, length, advice);
1651 OUTPUT:
1652 RETVAL
1653
1654IV
1655sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1656 CODE:
1657 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1658 OUTPUT:
1659 RETVAL
1660
1661void
1662mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1663 PPCODE:
1664 sv_unmagic (scalar, MMAP_MAGIC);
1665{
1666 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1667 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1668 if (addr == (void *)-1)
1669 XSRETURN_NO;
1670
1671 sv_force_normal (scalar);
1672
1673 /* we store the length in mg_obj, as namlen is I32 :/ */
1674 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1675 ->mg_obj = (SV *)length;
1676
1677 SvUPGRADE (scalar, SVt_PV); /* nop... */
1678
1679 if (!(prot & PROT_WRITE))
1680 SvREADONLY_on (scalar);
1681
1682 if (SvLEN (scalar))
1683 Safefree (SvPVX (scalar));
1684
1685 SvPVX (scalar) = (char *)addr;
1686 SvCUR_set (scalar, length);
1687 SvLEN_set (scalar, 0);
1688 SvPOK_only (scalar);
1689
1690 XSRETURN_YES;
1691}
1692
1693void
1694munmap (SV *scalar)
1695 CODE:
1696 sv_unmagic (scalar, MMAP_MAGIC);
1697
1698int
1699madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1700 ALIAS:
1701 mprotect = 1
1702 CODE:
1703{
1704 STRLEN svlen;
1705 void *addr = SvPVbyte (scalar, svlen);
1706 size_t len = SvUV (length);
1707
1708 if (offset < 0)
1709 offset += svlen;
1710
1711 if (offset < 0 || offset > svlen)
1712 croak ("offset outside of scalar");
1713
1714 if (!SvOK (length) || len + offset > svlen)
1715 len = svlen - offset;
1716
1717 addr = (void *)(((intptr_t)addr) + offset);
1718 eio_page_align (&addr, &len);
1719
1720 switch (ix)
1721 {
1722 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1723 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1724 }
1725}
1726 OUTPUT:
1727 RETVAL
1728
1729int
1730munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1731 CODE:
1732{
1733 STRLEN svlen;
1734 void *addr = SvPVbyte (scalar, svlen);
1735 size_t len = SvUV (length);
1736
1737 if (offset < 0)
1738 offset += svlen;
1739
1740 if (offset < 0 || offset > svlen)
1741 croak ("offset outside of scalar");
1742
1743 if (!SvOK (length) || len + offset > svlen)
1744 len = svlen - offset;
1745
1746 addr = (void *)(((intptr_t)addr) + offset);
1747 eio_page_align (&addr, &len);
1748#if _POSIX_MEMLOCK_RANGE
1749 RETVAL = munlock (addr, len);
1750#else
1751 RETVAL = ((errno = ENOSYS), -1);
1752#endif
1753}
1754 OUTPUT:
1755 RETVAL
1756
1757int
1758munlockall ()
1759 CODE:
1760#if _POSIX_MEMLOCK
1761 munlockall ();
1762#else
1763 RETVAL = -1;
1764 errno = ENOSYS;
1765#endif
1766 OUTPUT:
1767 RETVAL
1768
1769void _on_next_submit (SV *cb)
1770 CODE:
1771 SvREFCNT_dec (on_next_submit);
1772 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1773
1774PROTOTYPES: DISABLE
1775
1776MODULE = IO::AIO PACKAGE = IO::AIO::WD
1777
1778BOOT:
1779{
1780 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1781 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1782}
1783
1784void
1785DESTROY (SV *self)
1786 CODE:
1787{
1788 aio_wd wd = SvAIO_WD (self);
1789#if HAVE_AT
1790 SV *callback = &PL_sv_undef;
1791 dREQ; /* clobbers next_pri :/ */
1792 req->type = EIO_WD_CLOSE;
1793 req->wd = wd;
1794 REQ_SEND;
1795#else
1796 eio_wd_close_sync (wd);
1797#endif
1798}
1799
1800MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1801
1802void
1803cancel (aio_req_ornot req)
1804 CODE:
1805 eio_cancel (req);
1806
1807void
1808cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1809 PPCODE:
1810{
1811 if (GIMME_V != G_VOID)
1812 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1813
1814 if (items > 1)
1815 {
1816 SV *cb_cv =get_cb (callback);
1817
1818 SvREFCNT_dec (req->callback);
1819 req->callback = SvREFCNT_inc (cb_cv);
1820 }
1821}
1822
1823MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1824
1825void
1826add (aio_req grp, ...)
1827 PPCODE:
1828{
1829 int i;
1830
1831 if (grp->int1 == 2)
1832 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1833
1834 for (i = 1; i < items; ++i )
1835 {
1836 aio_req req;
1837
1838 if (GIMME_V != G_VOID)
1839 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1840
1841 req = SvAIO_REQ (ST (i));
1842
1843 if (req)
1844 eio_grp_add (grp, req);
1845 }
1846}
1847
1848void
1849cancel_subs (aio_req_ornot req)
1850 CODE:
1851 req_cancel_subs (req);
1852
1853void
1854result (aio_req grp, ...)
1855 CODE:
1856{
1857 int i;
1858 AV *av;
1859
1860 grp->errorno = errno;
1861
1862 av = newAV ();
1863 av_extend (av, items - 1);
1864
1865 for (i = 1; i < items; ++i )
1866 av_push (av, newSVsv (ST (i)));
1867
1868 SvREFCNT_dec (grp->sv1);
1869 grp->sv1 = (SV *)av;
1870}
1871
1872void
1873errno (aio_req grp, int errorno = errno)
1874 CODE:
1875 grp->errorno = errorno;
1876
1877void
1878limit (aio_req grp, int limit)
1879 CODE:
1880 eio_grp_limit (grp, limit);
1881
1882void
1883feed (aio_req grp, SV *callback=&PL_sv_undef)
1884 CODE:
1885{
1886 SvREFCNT_dec (grp->sv2);
1887 grp->sv2 = newSVsv (callback);
1888 grp->feed = aio_grp_feed;
1889
1890 if (grp->int2 <= 0)
1891 grp->int2 = 2;
1892
1893 eio_grp_limit (grp, grp->int2);
1894}
1895

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