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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.10 by root, Wed Jul 13 00:13:09 2005 UTC vs.
Revision 1.203 by root, Thu Sep 29 23:06:24 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
5#define _XOPEN_SOURCE 500 9#include "schmorp.h"
6 10
11#include <stddef.h>
12#include <stdlib.h>
13#include <errno.h>
7#include <sys/types.h> 14#include <sys/types.h>
8#include <sys/stat.h> 15#include <sys/stat.h>
9
10#include <unistd.h> 16#include <limits.h>
11#include <fcntl.h> 17#include <fcntl.h>
12#include <signal.h>
13#include <sched.h> 18#include <sched.h>
14#if __linux 19
20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
15#include <sys/syscall.h> 21# include <sys/mman.h>
16#endif 22#endif
17 23
18#include <pthread.h> 24/* perl namespace pollution */
25#undef VERSION
19 26
20typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 27/* perl stupidly overrides readdir and maybe others */
21typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 28/* with thread-unsafe versions, imagine that :( */
22typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */ 29#undef readdir
30#undef opendir
31#undef closedir
23 32
24#if __ia64 33#ifdef _WIN32
25# 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
26#else 67#else
27# 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)
28#endif 327#endif
29 328
30enum { 329enum {
31 REQ_QUIT, 330 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
32 REQ_OPEN, REQ_CLOSE,
33 REQ_READ, REQ_WRITE, REQ_READAHEAD,
34 REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,
35 REQ_FSYNC, REQ_FDATASYNC,
36}; 331};
37 332
38typedef struct aio_cb {
39 struct aio_cb *volatile next;
40
41 int type;
42
43 int fd;
44 off_t offset;
45 size_t length;
46 ssize_t result;
47 mode_t mode; /* open */
48 int errorno;
49 SV *data, *callback;
50 void *dataptr;
51 STRLEN dataoffset;
52
53 Stat_t *statdata;
54} aio_cb;
55
56typedef aio_cb *aio_req; 333typedef eio_req *aio_req;
334typedef eio_req *aio_req_ornot;
335typedef eio_wd aio_wd;
57 336
58static int started; 337static SV *on_next_submit;
59static int nreqs; 338static int next_pri = EIO_PRI_DEFAULT;
60static int max_outstanding = 1<<30; 339static int max_outstanding;
61static int respipe [2];
62 340
63static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 341static s_epipe respipe;
64static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
65static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
66 342
67static volatile aio_req reqs, reqe; /* queue start, queue end */ 343static void req_destroy (aio_req req);
68static volatile aio_req ress, rese; /* queue start, queue end */ 344static void req_cancel (aio_req req);
69 345
70static void 346static void
71poll_wait () 347want_poll (void)
72{ 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{
73 if (!nreqs) 364 if (!req->self)
74 return; 365 {
366 req->self = (SV *)newHV ();
367 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
368 }
75 369
76 fd_set rfd; 370 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
77 FD_ZERO(&rfd); 371}
78 FD_SET(respipe [0], &rfd);
79 372
80 select (respipe [0] + 1, &rfd, 0, 0, 0); 373static SV *
374newSVaio_wd (aio_wd wd)
375{
376 return sv_bless (newRV_noinc (newSViv ((IV)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 }
81} 441}
82 442
83static int 443static int
84poll_cb () 444req_invoke (eio_req *req)
85{ 445{
86 dSP; 446 if (req->flags & FLAG_SV2_RO_OFF)
87 int count = 0; 447 SvREADONLY_off (req->sv2);
88 aio_req req;
89
90 {
91 /* read and signals sent by the worker threads */
92 char buf [32];
93 while (read (respipe [0], buf, 32) > 0)
94 ;
95 }
96 448
97 for (;;) 449 if (!EIO_CANCELLED (req) && req->callback)
98 { 450 {
99 pthread_mutex_lock (&reslock); 451 dSP;
452 static SV *sv_result_cache; /* caches the result integer SV */
453 SV *sv_result;
100 454
101 req = ress; 455 ENTER;
456 SAVETMPS;
457 PUSHMARK (SP);
458 EXTEND (SP, 1);
102 459
103 if (ress) 460 /* do not recreate the result IV from scratch each time */
461 if (expect_true (sv_result_cache))
104 { 462 {
105 ress = ress->next; 463 sv_result = sv_result_cache; sv_result_cache = 0;
106 if (!ress) rese = 0; 464 SvIV_set (sv_result, req->result);
107 } 465 SvIOK_only (sv_result);
108
109 pthread_mutex_unlock (&reslock);
110
111 if (!req)
112 break;
113
114 nreqs--;
115
116 if (req->type == REQ_QUIT)
117 started--;
118 else
119 {
120 int errorno = errno;
121 errno = req->errorno;
122
123 if (req->type == REQ_READ)
124 SvCUR_set (req->data, req->dataoffset
125 + req->result > 0 ? req->result : 0);
126
127 if (req->data)
128 SvREFCNT_dec (req->data);
129
130 if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT)
131 {
132 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
133 PL_laststatval = req->result;
134 PL_statcache = *(req->statdata);
135
136 Safefree (req->statdata);
137 }
138
139 PUSHMARK (SP);
140 XPUSHs (sv_2mortal (newSViv (req->result)));
141
142 if (req->type == REQ_OPEN)
143 {
144 /* convert fd to fh */
145 SV *fh;
146
147 PUTBACK;
148 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
149 SPAGAIN;
150
151 fh = POPs;
152
153 PUSHMARK (SP);
154 XPUSHs (fh);
155 }
156
157 if (SvOK (req->callback))
158 {
159 PUTBACK;
160 call_sv (req->callback, G_VOID | G_EVAL);
161 SPAGAIN;
162 }
163
164 if (req->callback)
165 SvREFCNT_dec (req->callback);
166
167 errno = errorno;
168 count++;
169 }
170
171 Safefree (req);
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
237read_write (int dowrite, int fd, off_t offset, size_t length,
238 SV *data, STRLEN dataoffset, SV *callback)
239{
240 aio_req req;
241 STRLEN svlen;
242 char *svptr = SvPV (data, svlen);
243
244 SvUPGRADE (data, SVt_PV);
245 SvPOK_on (data);
246
247 if (dataoffset < 0)
248 dataoffset += svlen;
249
250 if (dataoffset < 0 || dataoffset > svlen)
251 croak ("data offset outside of string");
252
253 if (dowrite)
254 {
255 /* write: check length and adjust. */
256 if (length < 0 || length + dataoffset > svlen)
257 length = svlen - dataoffset;
258 }
259 else
260 {
261 /* read: grow scalar as necessary */
262 svptr = SvGROW (data, length + dataoffset);
263 }
264
265 if (length < 0)
266 croak ("length must not be negative");
267
268 Newz (0, req, 1, aio_cb);
269
270 if (!req)
271 croak ("out of memory during aio_req allocation");
272
273 req->type = dowrite ? REQ_WRITE : REQ_READ;
274 req->fd = fd;
275 req->offset = offset;
276 req->length = length;
277 req->data = SvREFCNT_inc (data);
278 req->dataptr = (char *)svptr + dataoffset;
279 req->callback = SvREFCNT_inc (callback);
280
281 send_req (req);
282}
283
284static void *
285aio_proc (void *thr_arg)
286{
287 aio_req req;
288 int type;
289
290 do
291 {
292 pthread_mutex_lock (&reqlock);
293
294 for (;;)
295 {
296 req = reqs;
297
298 if (reqs)
299 {
300 reqs = reqs->next;
301 if (!reqs) reqe = 0;
302 }
303
304 if (req)
305 break;
306
307 pthread_cond_wait (&reqwait, &reqlock);
308 }
309
310 pthread_mutex_unlock (&reqlock);
311
312 errno = 0; /* strictly unnecessary */
313
314 type = req->type;
315
316 switch (type)
317 {
318 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
319 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
320#if SYS_readahead
321 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
322#else
323 case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
324#endif
325
326 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
327 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
328 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
329
330 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
331 case REQ_CLOSE: req->result = close (req->fd); break;
332 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
333
334 case REQ_FSYNC: req->result = fsync (req->fd); break;
335 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
336
337 case REQ_QUIT:
338 break;
339
340 default:
341 req->result = ENOSYS;
342 break;
343 }
344
345 req->errorno = errno;
346
347 pthread_mutex_lock (&reslock);
348
349 req->next = 0;
350
351 if (rese)
352 {
353 rese->next = req;
354 rese = req;
355 } 466 }
356 else 467 else
357 { 468 {
358 rese = ress = req; 469 sv_result = newSViv (req->result);
359 470 SvREADONLY_on (sv_result);
360 /* write a dummy byte to the pipe so fh becomes ready */
361 write (respipe [1], &respipe, 1);
362 } 471 }
363 472
364 pthread_mutex_unlock (&reslock); 473 switch (req->type)
474 {
475 case EIO_WD_OPEN:
476 PUSHs (req->result ? &PL_sv_undef : 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;
365 } 674 }
366 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);
367 797
368 return 0; 798 return 0;
369} 799}
370 800
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
814static aio_req ecb_noinline
815dreq (SV *callback)
816{
817 SV *cb_cv;
818 aio_req req;
819 int req_pri = next_pri;
820 next_pri = EIO_PRI_DEFAULT;
821
822 cb_cv = get_cb (callback);
823
824 Newz (0, req, 1, eio_req);
825 if (!req)
826 croak ("out of memory during eio_req allocation");
827
828 req->callback = SvREFCNT_inc (cb_cv);
829 req->pri = req_pri;
830
831 return req;
832}
833
834#define dREQ \
835 aio_req req = dreq (callback); \
836
837#define REQ_SEND \
838 PUTBACK; \
839 req_submit (req); \
840 SPAGAIN; \
841 \
842 if (GIMME_V != G_VOID) \
843 XPUSHs (req_sv (req, aio_req_stash));
844
845ecb_inline void
846req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
847{
848 if (expect_false (SvROK (path)))
849 {
850 AV *av = (AV *)SvRV (path);
851 SV *wdob;
852
853 if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)
854 croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");
855
856 path = AvARRAY (av)[1];
857 wdob = AvARRAY (av)[0];
858
859 if (SvOK (wdob))
860 {
861 *wd = SvAIO_WD (wdob);
862 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
863 }
864 else
865 *wd = EIO_INVALID_WD;
866 }
867
868 *pathsv = newSVsv (path);
869 *ptr = SvPVbyte_nolen (*pathsv);
870}
871
872static void ecb_noinline
873req_set_path1 (aio_req req, SV *path)
874{
875 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
876}
877
878static void ecb_noinline
879req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
880{
881 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
882
883 switch (SvTYPE (rv))
884 {
885 case SVt_PVIO:
886 case SVt_PVLV:
887 case SVt_PVGV:
888 req->type = type_fh;
889 req->sv1 = newSVsv (fh_or_path);
890 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
891 break;
892
893 default:
894 req->type = type_path;
895 req_set_path1 (req, fh_or_path);
896 break;
897 }
898}
899
900XS(boot_IO__AIO) ecb_cold;
901
371MODULE = IO::AIO PACKAGE = IO::AIO 902MODULE = IO::AIO PACKAGE = IO::AIO
372 903
373PROTOTYPES: ENABLE 904PROTOTYPES: ENABLE
374 905
375BOOT: 906BOOT:
376{ 907{
377 if (pipe (respipe)) 908 static const struct {
378 croak ("unable to initialize result pipe"); 909 const char *name;
910 IV iv;
911 } *civ, const_iv[] = {
912# define const_niv(name, value) { # name, (IV) value },
913# define const_iv(name) { # name, (IV) name },
914# define const_eio(name) { # name, (IV) EIO_ ## name },
915 const_iv (EXDEV)
916 const_iv (ENOSYS)
917 const_iv (O_RDONLY)
918 const_iv (O_WRONLY)
919 const_iv (O_RDWR)
920 const_iv (O_CREAT)
921 const_iv (O_TRUNC)
922 const_iv (O_EXCL)
923 const_iv (O_APPEND)
379 924
380 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 925 const_iv (O_ASYNC)
381 croak ("cannot set result pipe to nonblocking mode"); 926 const_iv (O_DIRECT)
927 const_iv (O_NOATIME)
382 928
383 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 929 const_iv (O_CLOEXEC)
384 croak ("cannot set result pipe to nonblocking mode"); 930 const_iv (O_NOCTTY)
385} 931 const_iv (O_NOFOLLOW)
932 const_iv (O_NONBLOCK)
933 const_iv (O_EXEC)
934 const_iv (O_SEARCH)
935 const_iv (O_DIRECTORY)
936 const_iv (O_DSYNC)
937 const_iv (O_RSYNC)
938 const_iv (O_SYNC)
939 const_iv (O_TTY_INIT)
386 940
941 const_iv (S_IFIFO)
942 const_iv (S_IFCHR)
943 const_iv (S_IFBLK)
944 const_iv (S_IFLNK)
945 const_iv (S_IFREG)
946 const_iv (S_IFDIR)
947 const_iv (S_IFWHT)
948 const_iv (S_IFSOCK)
949 const_iv (S_IFMT)
950
951 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
952 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
953 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
954 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
955 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
956 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
957
958 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
959 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
960 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
961 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
962 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
963
964 const_iv (ST_RDONLY)
965 const_iv (ST_NOSUID)
966 const_iv (ST_NODEV)
967 const_iv (ST_NOEXEC)
968 const_iv (ST_SYNCHRONOUS)
969 const_iv (ST_MANDLOCK)
970 const_iv (ST_WRITE)
971 const_iv (ST_APPEND)
972 const_iv (ST_IMMUTABLE)
973 const_iv (ST_NOATIME)
974 const_iv (ST_NODIRATIME)
975 const_iv (ST_RELATIME)
976
977 const_iv (PROT_NONE)
978 const_iv (PROT_EXEC)
979 const_iv (PROT_READ)
980 const_iv (PROT_WRITE)
981
982 /*const_iv (MAP_FIXED)*/
983 const_iv (MAP_PRIVATE)
984 const_iv (MAP_SHARED)
985 const_iv (MAP_ANONYMOUS)
986
987 /* linuxish */
988 const_iv (MAP_HUGETLB)
989 const_iv (MAP_LOCKED)
990 const_iv (MAP_NORESERVE)
991 const_iv (MAP_POPULATE)
992 const_iv (MAP_NONBLOCK)
993
994 const_eio (MCL_FUTURE)
995 const_eio (MCL_CURRENT)
996
997 const_eio (MS_ASYNC)
998 const_eio (MS_INVALIDATE)
999 const_eio (MS_SYNC)
1000
1001 const_eio (MT_MODIFY)
1002
1003 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1004 const_eio (SYNC_FILE_RANGE_WRITE)
1005 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1006
1007 const_eio (FALLOC_FL_KEEP_SIZE)
1008
1009 const_eio (READDIR_DENTS)
1010 const_eio (READDIR_DIRS_FIRST)
1011 const_eio (READDIR_STAT_ORDER)
1012 const_eio (READDIR_FOUND_UNKNOWN)
1013
1014 const_eio (DT_UNKNOWN)
1015 const_eio (DT_FIFO)
1016 const_eio (DT_CHR)
1017 const_eio (DT_DIR)
1018 const_eio (DT_BLK)
1019 const_eio (DT_REG)
1020 const_eio (DT_LNK)
1021 const_eio (DT_SOCK)
1022 const_eio (DT_WHT)
1023 };
1024
1025 aio_stash = gv_stashpv ("IO::AIO" , 1);
1026 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1027 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1028 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1029
1030 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1031 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1032
1033 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1034
1035 reinit ();
1036}
1037
387void 1038void
388min_parallel(nthreads) 1039reinit ()
389 int nthreads 1040 PROTOTYPE:
1041
1042void
1043max_poll_reqs (unsigned int nreqs)
390 PROTOTYPE: $ 1044 PROTOTYPE: $
391 CODE: 1045 CODE:
392 while (nthreads > started) 1046 eio_set_max_poll_reqs (nreqs);
393 start_thread ();
394 1047
395void 1048void
396max_parallel(nthreads) 1049max_poll_time (double nseconds)
397 int nthreads
398 PROTOTYPE: $ 1050 PROTOTYPE: $
399 CODE: 1051 CODE:
1052 eio_set_max_poll_time (nseconds);
1053
1054void
1055min_parallel (unsigned int nthreads)
1056 PROTOTYPE: $
1057 CODE:
1058 eio_set_min_parallel (nthreads);
1059
1060void
1061max_parallel (unsigned int nthreads)
1062 PROTOTYPE: $
1063 CODE:
1064 eio_set_max_parallel (nthreads);
1065
1066void
1067max_idle (unsigned int nthreads)
1068 PROTOTYPE: $
1069 CODE:
1070 eio_set_max_idle (nthreads);
1071
1072void
1073idle_timeout (unsigned int seconds)
1074 PROTOTYPE: $
1075 CODE:
1076 eio_set_idle_timeout (seconds);
1077
1078void
1079max_outstanding (unsigned int maxreqs)
1080 PROTOTYPE: $
1081 CODE:
1082 max_outstanding = maxreqs;
1083
1084void
1085aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1086 PPCODE:
400{ 1087{
401 int cur = started; 1088 dREQ;
402 while (cur > nthreads) 1089
403 { 1090 req->type = EIO_WD_OPEN;
404 end_thread (); 1091 req_set_path1 (req, pathname);
1092
1093 REQ_SEND;
1094}
1095
1096void
1097aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1098 PPCODE:
1099{
1100 dREQ;
1101
1102 req->type = EIO_OPEN;
1103 req_set_path1 (req, pathname);
1104 req->int1 = flags;
1105 req->int2 = mode;
1106
1107 REQ_SEND;
1108}
1109
1110void
1111aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1112 ALIAS:
1113 aio_fsync = EIO_FSYNC
1114 aio_fdatasync = EIO_FDATASYNC
1115 aio_syncfs = EIO_SYNCFS
1116 PPCODE:
1117{
1118 int fd = s_fileno_croak (fh, 0);
1119 dREQ;
1120
1121 req->type = ix;
1122 req->sv1 = newSVsv (fh);
1123 req->int1 = fd;
1124
1125 REQ_SEND (req);
1126}
1127
1128void
1129aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1130 PPCODE:
1131{
1132 int fd = s_fileno_croak (fh, 0);
1133 dREQ;
1134
1135 req->type = EIO_SYNC_FILE_RANGE;
1136 req->sv1 = newSVsv (fh);
1137 req->int1 = fd;
1138 req->offs = offset;
1139 req->size = nbytes;
1140 req->int2 = flags;
1141
1142 REQ_SEND (req);
1143}
1144
1145void
1146aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1147 PPCODE:
1148{
1149 int fd = s_fileno_croak (fh, 0);
1150 dREQ;
1151
1152 req->type = EIO_FALLOCATE;
1153 req->sv1 = newSVsv (fh);
1154 req->int1 = fd;
1155 req->int2 = mode;
1156 req->offs = offset;
1157 req->size = len;
1158
1159 REQ_SEND (req);
1160}
1161
1162void
1163aio_close (SV *fh, SV *callback=&PL_sv_undef)
1164 PPCODE:
1165{
1166 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1167 int fd = s_fileno_croak (fh, 0);
1168 dREQ;
1169
1170 if (expect_false (close_fd < 0))
1171 {
1172 int pipefd [2];
1173
1174 if (
1175#ifdef _WIN32
1176 _pipe (pipefd, 1, _O_BINARY) < 0
1177#else
1178 pipe (pipefd) < 0
1179 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1180#endif
1181 || close (pipefd [1]) < 0
405 cur--; 1182 )
1183 abort (); /*D*/
1184
1185 close_fd = pipefd [0];
406 } 1186 }
407 1187
408 while (started > nthreads) 1188 req->type = EIO_DUP2;
1189 req->int1 = close_fd;
1190 req->sv2 = newSVsv (fh);
1191 req->int2 = fd;
1192
1193 REQ_SEND (req);
1194}
1195
1196void
1197aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1198 ALIAS:
1199 aio_read = EIO_READ
1200 aio_write = EIO_WRITE
1201 PPCODE:
1202{
1203 STRLEN svlen;
1204 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1205 char *svptr = SvPVbyte (data, svlen);
1206 UV len = SvUV (length);
1207
1208 if (dataoffset < 0)
1209 dataoffset += svlen;
1210
1211 if (dataoffset < 0 || dataoffset > svlen)
1212 croak ("dataoffset outside of data scalar");
1213
1214 if (ix == EIO_WRITE)
1215 {
1216 /* write: check length and adjust. */
1217 if (!SvOK (length) || len + dataoffset > svlen)
1218 len = svlen - dataoffset;
1219 }
1220 else
1221 {
1222 /* read: check type and grow scalar as necessary */
1223 SvUPGRADE (data, SVt_PV);
1224 svptr = SvGROW (data, len + dataoffset + 1);
1225 }
1226
1227 {
1228 dREQ;
1229
1230 req->type = ix;
1231 req->sv1 = newSVsv (fh);
1232 req->int1 = fd;
1233 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1234 req->size = len;
1235 req->sv2 = SvREFCNT_inc (data);
1236 req->ptr2 = (char *)svptr + dataoffset;
1237 req->stroffset = dataoffset;
1238
1239 if (!SvREADONLY (data))
1240 {
1241 SvREADONLY_on (data);
1242 req->flags |= FLAG_SV2_RO_OFF;
1243 }
1244
1245 REQ_SEND;
1246 }
1247}
1248
1249void
1250aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1251 ALIAS:
1252 aio_readlink = EIO_READLINK
1253 aio_realpath = EIO_REALPATH
1254 PPCODE:
1255{
1256 dREQ;
1257
1258 req->type = ix;
1259 req_set_path1 (req, pathname);
1260
1261 REQ_SEND;
1262}
1263
1264void
1265aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1266 PPCODE:
1267{
1268 int ifd = s_fileno_croak (in_fh , 0);
1269 int ofd = s_fileno_croak (out_fh, 1);
1270 dREQ;
1271
1272 req->type = EIO_SENDFILE;
1273 req->sv1 = newSVsv (out_fh);
1274 req->int1 = ofd;
1275 req->sv2 = newSVsv (in_fh);
1276 req->int2 = ifd;
1277 req->offs = in_offset;
1278 req->size = length;
1279
1280 REQ_SEND;
1281}
1282
1283void
1284aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1285 PPCODE:
1286{
1287 int fd = s_fileno_croak (fh, 0);
1288 dREQ;
1289
1290 req->type = EIO_READAHEAD;
1291 req->sv1 = newSVsv (fh);
1292 req->int1 = fd;
1293 req->offs = offset;
1294 req->size = length;
1295
1296 REQ_SEND;
1297}
1298
1299void
1300aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1301 ALIAS:
1302 aio_stat = EIO_STAT
1303 aio_lstat = EIO_LSTAT
1304 aio_statvfs = EIO_STATVFS
1305 PPCODE:
1306{
1307 dREQ;
1308
1309 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1310
1311 REQ_SEND;
1312}
1313
1314UV
1315major (UV dev)
1316 ALIAS:
1317 minor = 1
1318 CODE:
1319 RETVAL = ix ? major (dev) : minor (dev);
1320 OUTPUT:
1321 RETVAL
1322
1323UV
1324makedev (UV maj, UV min)
1325 CODE:
1326 RETVAL = makedev (maj, min);
1327 OUTPUT:
1328 RETVAL
1329
1330void
1331aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1332 PPCODE:
1333{
1334 dREQ;
1335
1336 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1337 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1338 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1339
1340 REQ_SEND;
1341}
1342
1343void
1344aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1345 PPCODE:
1346{
1347 dREQ;
1348
1349 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1350 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1351
1352 REQ_SEND;
1353}
1354
1355void
1356aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1357 PPCODE:
1358{
1359 dREQ;
1360
1361 req->int2 = mode;
1362 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1363
1364 REQ_SEND;
1365}
1366
1367void
1368aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1369 PPCODE:
1370{
1371 dREQ;
1372
1373 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1374 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1375 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1376
1377 REQ_SEND;
1378}
1379
1380void
1381aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1382 PPCODE:
1383{
1384 dREQ;
1385
1386 req->type = EIO_READDIR;
1387 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1388
1389 if (flags & EIO_READDIR_DENTS)
1390 req->int1 |= EIO_READDIR_CUSTOM2;
1391
1392 req_set_path1 (req, pathname);
1393
1394 REQ_SEND;
1395}
1396
1397void
1398aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1399 PPCODE:
1400{
1401 dREQ;
1402
1403 req->type = EIO_MKDIR;
1404 req->int2 = mode;
1405 req_set_path1 (req, pathname);
1406
1407 REQ_SEND;
1408}
1409
1410void
1411aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1412 ALIAS:
1413 aio_unlink = EIO_UNLINK
1414 aio_rmdir = EIO_RMDIR
1415 aio_readdir = EIO_READDIR
1416 PPCODE:
1417{
1418 dREQ;
1419
1420 req->type = ix;
1421 req_set_path1 (req, pathname);
1422
1423 REQ_SEND;
1424}
1425
1426void
1427aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1428 ALIAS:
1429 aio_link = EIO_LINK
1430 aio_symlink = EIO_SYMLINK
1431 aio_rename = EIO_RENAME
1432 PPCODE:
1433{
1434 dREQ;
1435 eio_wd wd2 = 0;
1436
1437 req->type = ix;
1438 req_set_path1 (req, oldpath);
1439 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1440 req->int3 = (long)wd2;
1441
1442 REQ_SEND;
1443}
1444
1445void
1446aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1447 PPCODE:
1448{
1449 dREQ;
1450
1451 req->type = EIO_MKNOD;
1452 req->int2 = (mode_t)mode;
1453 req->offs = dev;
1454 req_set_path1 (req, pathname);
1455
1456 REQ_SEND;
1457}
1458
1459void
1460aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1461 ALIAS:
1462 aio_mtouch = EIO_MTOUCH
1463 aio_msync = EIO_MSYNC
1464 PPCODE:
1465{
1466 STRLEN svlen;
1467 char *svptr = SvPVbyte (data, svlen);
1468 UV len = SvUV (length);
1469
1470 if (offset < 0)
1471 offset += svlen;
1472
1473 if (offset < 0 || offset > svlen)
1474 croak ("offset outside of scalar");
1475
1476 if (!SvOK (length) || len + offset > svlen)
1477 len = svlen - offset;
1478
1479 {
1480 dREQ;
1481
1482 req->type = ix;
1483 req->sv2 = SvREFCNT_inc (data);
1484 req->ptr2 = (char *)svptr + offset;
1485 req->size = len;
1486 req->int1 = flags;
1487
1488 REQ_SEND;
1489 }
1490}
1491
1492void
1493aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1494 PPCODE:
1495{
1496 STRLEN svlen;
1497 char *svptr = SvPVbyte (data, svlen);
1498 UV len = SvUV (length);
1499
1500 if (offset < 0)
1501 offset += svlen;
1502
1503 if (offset < 0 || offset > svlen)
1504 croak ("offset outside of scalar");
1505
1506 if (!SvOK (length) || len + offset > svlen)
1507 len = svlen - offset;
1508
1509 {
1510 dREQ;
1511
1512 req->type = EIO_MLOCK;
1513 req->sv2 = SvREFCNT_inc (data);
1514 req->ptr2 = (char *)svptr + offset;
1515 req->size = len;
1516
1517 REQ_SEND;
1518 }
1519}
1520
1521void
1522aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1523 PPCODE:
1524{
1525 dREQ;
1526
1527 req->type = EIO_MLOCKALL;
1528 req->int1 = flags;
1529
1530 REQ_SEND;
1531}
1532
1533void
1534aio_busy (double delay, SV *callback=&PL_sv_undef)
1535 PPCODE:
1536{
1537 dREQ;
1538
1539 req->type = EIO_BUSY;
1540 req->nv1 = delay < 0. ? 0. : delay;
1541
1542 REQ_SEND;
1543}
1544
1545void
1546aio_group (SV *callback=&PL_sv_undef)
1547 PPCODE:
1548{
1549 dREQ;
1550
1551 req->type = EIO_GROUP;
1552
1553 req_submit (req);
1554 XPUSHs (req_sv (req, aio_grp_stash));
1555}
1556
1557void
1558aio_nop (SV *callback=&PL_sv_undef)
1559 ALIAS:
1560 aio_nop = EIO_NOP
1561 aio_sync = EIO_SYNC
1562 PPCODE:
1563{
1564 dREQ;
1565
1566 req->type = ix;
1567
1568 REQ_SEND;
1569}
1570
1571int
1572aioreq_pri (int pri = 0)
1573 CODE:
1574 RETVAL = next_pri;
1575 if (items > 0)
1576 {
1577 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1578 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1579 next_pri = pri;
1580 }
1581 OUTPUT:
1582 RETVAL
1583
1584void
1585aioreq_nice (int nice = 0)
1586 CODE:
1587 nice = next_pri - nice;
1588 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1589 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1590 next_pri = nice;
1591
1592void
1593flush ()
1594 CODE:
1595 while (eio_nreqs ())
409 { 1596 {
410 poll_wait (); 1597 poll_wait ();
411 poll_cb (); 1598 poll_cb ();
412 } 1599 }
413}
414 1600
415int 1601int
416max_outstanding(nreqs) 1602poll ()
417 int nreqs
418 PROTOTYPE: $
419 CODE:
420 RETVAL = max_outstanding;
421 max_outstanding = nreqs;
422
423void
424aio_open(pathname,flags,mode,callback=&PL_sv_undef)
425 SV * pathname
426 int flags
427 int mode
428 SV * callback
429 PROTOTYPE: $$$;$
430 CODE: 1603 CODE:
431{
432 aio_req req;
433
434 Newz (0, req, 1, aio_cb);
435
436 if (!req)
437 croak ("out of memory during aio_req allocation");
438
439 req->type = REQ_OPEN;
440 req->data = newSVsv (pathname);
441 req->dataptr = SvPV_nolen (req->data);
442 req->fd = flags;
443 req->mode = mode;
444 req->callback = SvREFCNT_inc (callback);
445
446 send_req (req);
447}
448
449void
450aio_close(fh,callback=&PL_sv_undef)
451 InputStream fh
452 SV * callback
453 PROTOTYPE: $;$
454 ALIAS:
455 aio_close = REQ_CLOSE
456 aio_fsync = REQ_FSYNC
457 aio_fdatasync = REQ_FDATASYNC
458 CODE:
459{
460 aio_req req;
461
462 Newz (0, req, 1, aio_cb);
463
464 if (!req)
465 croak ("out of memory during aio_req allocation");
466
467 req->type = ix;
468 req->fd = PerlIO_fileno (fh);
469 req->callback = SvREFCNT_inc (callback);
470
471 send_req (req);
472}
473
474void
475aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
476 InputStream fh
477 UV offset
478 IV length
479 SV * data
480 IV dataoffset
481 SV * callback
482 PROTOTYPE: $$$$$;$
483 CODE:
484 read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
485
486void
487aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
488 OutputStream fh
489 UV offset
490 IV length
491 SV * data
492 IV dataoffset
493 SV * callback
494 PROTOTYPE: $$$$$;$
495 CODE:
496 read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
497
498void
499aio_readahead(fh,offset,length,callback=&PL_sv_undef)
500 InputStream fh
501 UV offset
502 IV length
503 SV * callback
504 PROTOTYPE: $$$;$
505 CODE:
506{
507 aio_req req;
508
509 if (length < 0)
510 croak ("length must not be negative");
511
512 Newz (0, req, 1, aio_cb);
513
514 if (!req)
515 croak ("out of memory during aio_req allocation");
516
517 req->type = REQ_READAHEAD;
518 req->fd = PerlIO_fileno (fh);
519 req->offset = offset;
520 req->length = length;
521 req->callback = SvREFCNT_inc (callback);
522
523 send_req (req);
524}
525
526void
527aio_stat(fh_or_path,callback=&PL_sv_undef)
528 SV * fh_or_path
529 SV * callback
530 ALIAS:
531 aio_stat = REQ_STAT
532 aio_lstat = REQ_LSTAT
533 CODE:
534{
535 aio_req req;
536
537 Newz (0, req, 1, aio_cb);
538
539 if (!req)
540 croak ("out of memory during aio_req allocation");
541
542 New (0, req->statdata, 1, Stat_t);
543
544 if (!req->statdata)
545 croak ("out of memory during aio_req->statdata allocation");
546
547 if (SvPOK (fh_or_path))
548 {
549 req->type = ix;
550 req->data = newSVsv (fh_or_path);
551 req->dataptr = SvPV_nolen (req->data);
552 }
553 else
554 {
555 req->type = REQ_FSTAT;
556 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
557 }
558
559 req->callback = SvREFCNT_inc (callback);
560
561 send_req (req);
562}
563
564void
565aio_unlink(pathname,callback=&PL_sv_undef)
566 SV * pathname
567 SV * callback
568 CODE:
569{
570 aio_req req;
571
572 Newz (0, req, 1, aio_cb);
573
574 if (!req)
575 croak ("out of memory during aio_req allocation");
576
577 req->type = REQ_UNLINK;
578 req->data = newSVsv (pathname);
579 req->dataptr = SvPV_nolen (req->data);
580 req->callback = SvREFCNT_inc (callback);
581
582 send_req (req);
583}
584
585void
586flush()
587 PROTOTYPE:
588 CODE:
589 while (nreqs)
590 {
591 poll_wait (); 1604 poll_wait ();
592 poll_cb (); 1605 RETVAL = poll_cb ();
593 }
594
595void
596poll()
597 PROTOTYPE:
598 CODE:
599 if (nreqs)
600 {
601 poll_wait ();
602 poll_cb ();
603 }
604
605int
606poll_fileno()
607 PROTOTYPE:
608 CODE:
609 RETVAL = respipe [0];
610 OUTPUT: 1606 OUTPUT:
611 RETVAL 1607 RETVAL
612 1608
613int 1609int
1610poll_fileno ()
1611 CODE:
1612 RETVAL = s_epipe_fd (&respipe);
1613 OUTPUT:
1614 RETVAL
1615
1616int
614poll_cb(...) 1617poll_cb (...)
615 PROTOTYPE: 1618 PROTOTYPE:
616 CODE: 1619 CODE:
617 RETVAL = poll_cb (); 1620 RETVAL = poll_cb ();
618 OUTPUT: 1621 OUTPUT:
619 RETVAL 1622 RETVAL
620 1623
621void 1624void
622poll_wait() 1625poll_wait ()
623 PROTOTYPE:
624 CODE: 1626 CODE:
625 if (nreqs)
626 poll_wait (); 1627 poll_wait ();
627 1628
628int 1629int
629nreqs() 1630nreqs ()
630 PROTOTYPE:
631 CODE: 1631 CODE:
632 RETVAL = nreqs; 1632 RETVAL = eio_nreqs ();
633 OUTPUT: 1633 OUTPUT:
634 RETVAL 1634 RETVAL
635 1635
1636int
1637nready ()
1638 CODE:
1639 RETVAL = eio_nready ();
1640 OUTPUT:
1641 RETVAL
1642
1643int
1644npending ()
1645 CODE:
1646 RETVAL = eio_npending ();
1647 OUTPUT:
1648 RETVAL
1649
1650int
1651nthreads ()
1652 CODE:
1653 RETVAL = eio_nthreads ();
1654 OUTPUT:
1655 RETVAL
1656
1657int
1658fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1659 CODE:
1660 RETVAL = posix_fadvise (fh, offset, length, advice);
1661 OUTPUT:
1662 RETVAL
1663
1664IV
1665sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1666 CODE:
1667 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1668 OUTPUT:
1669 RETVAL
1670
1671void
1672mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1673 PPCODE:
1674 sv_unmagic (scalar, MMAP_MAGIC);
1675{
1676 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1677 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1678 if (addr == (void *)-1)
1679 XSRETURN_NO;
1680
1681 sv_force_normal (scalar);
1682
1683 /* we store the length in mg_obj, as namlen is I32 :/ */
1684 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1685 ->mg_obj = (SV *)length;
1686
1687 SvUPGRADE (scalar, SVt_PV); /* nop... */
1688
1689 if (!(prot & PROT_WRITE))
1690 SvREADONLY_on (scalar);
1691
1692 if (SvLEN (scalar))
1693 Safefree (SvPVX (scalar));
1694
1695 SvPVX (scalar) = (char *)addr;
1696 SvCUR_set (scalar, length);
1697 SvLEN_set (scalar, 0);
1698 SvPOK_only (scalar);
1699
1700 XSRETURN_YES;
1701}
1702
1703void
1704munmap (SV *scalar)
1705 CODE:
1706 sv_unmagic (scalar, MMAP_MAGIC);
1707
1708int
1709madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1710 ALIAS:
1711 mprotect = 1
1712 CODE:
1713{
1714 STRLEN svlen;
1715 void *addr = SvPVbyte (scalar, svlen);
1716 size_t len = SvUV (length);
1717
1718 if (offset < 0)
1719 offset += svlen;
1720
1721 if (offset < 0 || offset > svlen)
1722 croak ("offset outside of scalar");
1723
1724 if (!SvOK (length) || len + offset > svlen)
1725 len = svlen - offset;
1726
1727 addr = (void *)(((intptr_t)addr) + offset);
1728 eio_page_align (&addr, &len);
1729
1730 switch (ix)
1731 {
1732 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1733 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1734 }
1735}
1736 OUTPUT:
1737 RETVAL
1738
1739int
1740munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1741 CODE:
1742{
1743 STRLEN svlen;
1744 void *addr = SvPVbyte (scalar, svlen);
1745 size_t len = SvUV (length);
1746
1747 if (offset < 0)
1748 offset += svlen;
1749
1750 if (offset < 0 || offset > svlen)
1751 croak ("offset outside of scalar");
1752
1753 if (!SvOK (length) || len + offset > svlen)
1754 len = svlen - offset;
1755
1756 addr = (void *)(((intptr_t)addr) + offset);
1757 eio_page_align (&addr, &len);
1758#if _POSIX_MEMLOCK_RANGE
1759 RETVAL = munlock (addr, len);
1760#else
1761 RETVAL = ((errno = ENOSYS), -1);
1762#endif
1763}
1764 OUTPUT:
1765 RETVAL
1766
1767int
1768munlockall ()
1769 CODE:
1770#if _POSIX_MEMLOCK
1771 munlockall ();
1772#else
1773 RETVAL = -1;
1774 errno = ENOSYS;
1775#endif
1776 OUTPUT:
1777 RETVAL
1778
1779void _on_next_submit (SV *cb)
1780 CODE:
1781 SvREFCNT_dec (on_next_submit);
1782 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1783
1784PROTOTYPES: DISABLE
1785
1786MODULE = IO::AIO PACKAGE = IO::AIO::WD
1787
1788BOOT:
1789{
1790 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1791 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1792}
1793
1794void
1795DESTROY (SV *self)
1796 CODE:
1797{
1798 aio_wd wd = SvAIO_WD (self);
1799#if HAVE_AT
1800 {
1801 SV *callback = &PL_sv_undef;
1802 dREQ; /* clobbers next_pri :/ */
1803 next_pri = req->pri; /* restore next_pri */
1804 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1805 req->type = EIO_WD_CLOSE;
1806 req->wd = wd;
1807 REQ_SEND;
1808 }
1809#else
1810 eio_wd_close_sync (wd);
1811#endif
1812}
1813
1814MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1815
1816void
1817cancel (aio_req_ornot req)
1818 CODE:
1819 eio_cancel (req);
1820
1821void
1822cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1823 PPCODE:
1824{
1825 if (GIMME_V != G_VOID)
1826 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1827
1828 if (items > 1)
1829 {
1830 SV *cb_cv =get_cb (callback);
1831
1832 SvREFCNT_dec (req->callback);
1833 req->callback = SvREFCNT_inc (cb_cv);
1834 }
1835}
1836
1837MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1838
1839void
1840add (aio_req grp, ...)
1841 PPCODE:
1842{
1843 int i;
1844
1845 if (grp->int1 == 2)
1846 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1847
1848 for (i = 1; i < items; ++i )
1849 {
1850 aio_req req;
1851
1852 if (GIMME_V != G_VOID)
1853 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1854
1855 req = SvAIO_REQ (ST (i));
1856
1857 if (req)
1858 eio_grp_add (grp, req);
1859 }
1860}
1861
1862void
1863cancel_subs (aio_req_ornot req)
1864 CODE:
1865 req_cancel_subs (req);
1866
1867void
1868result (aio_req grp, ...)
1869 CODE:
1870{
1871 int i;
1872 AV *av;
1873
1874 grp->errorno = errno;
1875
1876 av = newAV ();
1877 av_extend (av, items - 1);
1878
1879 for (i = 1; i < items; ++i )
1880 av_push (av, newSVsv (ST (i)));
1881
1882 SvREFCNT_dec (grp->sv1);
1883 grp->sv1 = (SV *)av;
1884}
1885
1886void
1887errno (aio_req grp, int errorno = errno)
1888 CODE:
1889 grp->errorno = errorno;
1890
1891void
1892limit (aio_req grp, int limit)
1893 CODE:
1894 eio_grp_limit (grp, limit);
1895
1896void
1897feed (aio_req grp, SV *callback=&PL_sv_undef)
1898 CODE:
1899{
1900 SvREFCNT_dec (grp->sv2);
1901 grp->sv2 = newSVsv (callback);
1902 grp->feed = aio_grp_feed;
1903
1904 if (grp->int2 <= 0)
1905 grp->int2 = 2;
1906
1907 eio_grp_limit (grp, grp->int2);
1908}
1909

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