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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.1 by root, Sun Jul 10 17:07:44 2005 UTC vs.
Revision 1.185 by root, Thu Jul 7 22:36:18 2011 UTC

1#define PERL_NO_GET_CONTEXT 1#include "libeio/xthread.h"
2
3#include <errno.h>
2 4
3#include "EXTERN.h" 5#include "EXTERN.h"
4#include "perl.h" 6#include "perl.h"
5#include "XSUB.h" 7#include "XSUB.h"
6 8
9#include "schmorp.h"
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>
16#include <sys/statvfs.h>
9#include <unistd.h> 17#include <limits.h>
10#include <fcntl.h> 18#include <fcntl.h>
11#include <signal.h>
12#include <sched.h> 19#include <sched.h>
13#include <endian.h>
14 20
15#include <pthread.h> 21#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
16#include <sys/syscall.h> 22# include <sys/mman.h>
23#endif
17 24
18typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 25/* perl namespace pollution */
19typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 26#undef VERSION
20typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */
21 27
22#if __i386 || __amd64 28#ifdef _WIN32
23# define STACKSIZE ( 256 * sizeof (long)) 29
24#elif __ia64 30# define EIO_STRUCT_DIRENT Direntry_t
25# define STACKSIZE (8192 * sizeof (long)) 31# undef malloc
32# undef free
33
34// perl overrides all those nice win32 functions
35# undef open
36# undef read
37# undef write
38# undef send
39# undef recv
40# undef stat
41# undef fstat
42# define lstat stat
43# undef truncate
44# undef ftruncate
45# undef open
46# undef close
47# undef unlink
48# undef rmdir
49# undef rename
50# undef lseek
51
52# define chown(a,b,c) (errno = ENOSYS, -1)
53# define fchown(a,b,c) (errno = ENOSYS, -1)
54# define fchmod(a,b) (errno = ENOSYS, -1)
55# define symlink(a,b) (errno = ENOSYS, -1)
56# define readlink(a,b,c) (errno = ENOSYS, -1)
57# define mknod(a,b,c) (errno = ENOSYS, -1)
58# define truncate(a,b) (errno = ENOSYS, -1)
59# define ftruncate(fd,o) chsize ((fd), (o))
60# define fsync(fd) _commit (fd)
61# define opendir(fd) (errno = ENOSYS, 0)
62# define readdir(fd) (errno = ENOSYS, -1)
63# define closedir(fd) (errno = ENOSYS, -1)
64# define mkdir(a,b) mkdir (a)
65
26#else 66#else
27# define STACKSIZE ( 512 * sizeof (long)) 67
68# include <sys/time.h>
69# include <sys/select.h>
70# include <unistd.h>
71# include <utime.h>
72# include <signal.h>
73# define EIO_STRUCT_DIRENT struct dirent
74
75#endif
76
77/* perl stupidly overrides readdir and maybe others */
78/* with thread-unsafe versions, imagine that :( */
79#undef readdir
80#undef opendir
81#undef closedir
82
83#define EIO_STRUCT_STAT Stat_t
84
85/* use NV for 32 bit perls as it allows larger offsets */
86#if IVSIZE >= 8
87# define VAL64 IV
88# define SvVAL64 SvIV
89# define newSVval64 newSViv
90#else
91# define VAL64 NV
92# define SvVAL64 SvNV
93# define newSVval64 newSVnv
94#endif
95
96/*****************************************************************************/
97
98#if __GNUC__ >= 3
99# define expect(expr,value) __builtin_expect ((expr),(value))
100#else
101# define expect(expr,value) (expr)
102#endif
103
104#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1)
106
107/*****************************************************************************/
108
109typedef SV SV8; /* byte-sv, used for argument-checking */
110typedef int aio_rfd; /* read file desriptor */
111typedef int aio_wfd; /* write file descriptor */
112
113static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
114
115#define EIO_REQ_MEMBERS \
116 SV *callback; \
117 SV *sv1, *sv2; \
118 STRLEN stroffset; \
119 SV *self;
120
121#define EIO_NO_WRAPPERS 1
122
123#include "libeio/config.h"
124#include "libeio/eio.h"
125
126/* Linux/others */
127#ifndef O_ASYNC
128# define O_ASYNC 0
129#endif
130#ifndef O_DIRECT
131# define O_DIRECT 0
132#endif
133#ifndef O_NOATIME
134# define O_NOATIME 0
135#endif
136
137/* POSIX */
138#ifndef O_CLOEXEC
139# define O_CLOEXEC 0
140#endif
141#ifndef O_NOFOLLOW
142# define O_NOFOLLOW 0
143#endif
144#ifndef O_NOCTTY
145# define O_NOCTTY 0
146#endif
147#ifndef O_NONBLOCK
148# define O_NONBLOCK 0
149#endif
150#ifndef O_EXEC
151# define O_EXEC 0
152#endif
153#ifndef O_SEARCH
154# define O_SEARCH 0
155#endif
156#ifndef O_DIRECTORY
157# define O_DIRECTORY 0
158#endif
159#ifndef O_DSYNC
160# define O_DSYNC 0
161#endif
162#ifndef O_RSYNC
163# define O_RSYNC 0
164#endif
165#ifndef O_SYNC
166# define O_SYNC 0
167#endif
168#ifndef O_TTY_INIT
169# define O_TTY_INIT 0
170#endif
171
172#ifndef POSIX_FADV_NORMAL
173# define POSIX_FADV_NORMAL 0
174#endif
175#ifndef POSIX_FADV_SEQUENTIAL
176# define POSIX_FADV_SEQUENTIAL 0
177#endif
178#ifndef POSIX_FADV_RANDOM
179# define POSIX_FADV_RANDOM 0
180#endif
181#ifndef POSIX_FADV_NOREUSE
182# define POSIX_FADV_NOREUSE 0
183#endif
184#ifndef POSIX_FADV_WILLNEED
185# define POSIX_FADV_WILLNEED 0
186#endif
187#ifndef POSIX_FADV_DONTNEED
188# define POSIX_FADV_DONTNEED 0
189#endif
190
191#if !HAVE_POSIX_FADVISE
192# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
193#endif
194
195#ifndef POSIX_MADV_NORMAL
196# define POSIX_MADV_NORMAL 0
197#endif
198#ifndef POSIX_MADV_SEQUENTIAL
199# define POSIX_MADV_SEQUENTIAL 0
200#endif
201#ifndef POSIX_MADV_RANDOM
202# define POSIX_MADV_RANDOM 0
203#endif
204#ifndef POSIX_MADV_WILLNEED
205# define POSIX_MADV_WILLNEED 0
206#endif
207#ifndef POSIX_MADV_DONTNEED
208# define POSIX_MADV_DONTNEED 0
209#endif
210
211#if !HAVE_POSIX_MADVISE
212# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
213#endif
214
215#ifndef PROT_NONE
216# define PROT_NONE 0
217#endif
218#ifndef PROT_READ
219# define PROT_READ 0
220#endif
221#ifndef PROT_WRITE
222# define PROT_READ 0
223#endif
224#ifndef PROT_EXEC
225# define PROT_EXEC 0
226#endif
227
228#ifndef ST_NODEV
229# define ST_NODEV 0
230#endif
231#ifndef ST_NOEXEC
232# define ST_NOEXEC 0
233#endif
234#ifndef ST_SYNCHRONOUS
235# define ST_SYNCHRONOUS 0
236#endif
237#ifndef ST_MANDLOCK
238# define ST_MANDLOCK 0
239#endif
240#ifndef ST_WRITE
241# define ST_WRITE 0
242#endif
243#ifndef ST_APPEND
244# define ST_APPEND 0
245#endif
246#ifndef ST_IMMUTABLE
247# define ST_IMMUTABLE 0
248#endif
249#ifndef ST_NOATIME
250# define ST_NOATIME 0
251#endif
252#ifndef ST_NODIRATIME
253# define ST_NODIRATIME 0
254#endif
255#ifndef ST_RELATIME
256# define ST_RELATIME 0
257#endif
258
259#ifndef S_IFIFO
260# define S_IFIFO 0
261#endif
262#ifndef S_IFCHR
263# define S_IFCHR 0
264#endif
265#ifndef S_IFBLK
266# define S_IFBLK 0
267#endif
268#ifndef S_IFLNK
269# define S_IFLNK 0
270#endif
271#ifndef S_IFREG
272# define S_IFREG 0
273#endif
274#ifndef S_IFDIR
275# define S_IFDIR 0
276#endif
277#ifndef S_IFWHT
278# define S_IFWHT 0
279#endif
280#ifndef S_IFSOCK
281# define S_IFSOCK 0
282#endif
283
284#ifndef MAP_ANONYMOUS
285# ifdef MAP_ANON
286# define MAP_ANONYMOUS MAP_ANON
287# else
288# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
28#endif 289# endif
290#endif
291#ifndef MAP_HUGETLB
292# define MAP_HUGETLB 0
293#endif
294#ifndef MAP_LOCKED
295# define MAP_LOCKED 0
296#endif
297#ifndef MAP_NORESERVE
298# define MAP_NORESERVE 0
299#endif
300#ifndef MAP_POPULATE
301# define MAP_POPULATE 0
302#endif
303#ifndef MAP_NONBLOCK
304# define MAP_NONBLOCK 0
305#endif
306
307#ifndef makedev
308# define makedev(maj,min) (((maj) << 8) | (min))
309#endif
310#ifndef major
311# define major(dev) ((dev) >> 8)
312#endif
313#ifndef minor
314# define minor(dev) ((dev) & 0xff)
315#endif
316
317#ifndef PAGESIZE
318# define PAGESIZE sysconf (_SC_PAGESIZE)
319#endif
320
321static int req_invoke (eio_req *req);
322#define EIO_FINISH(req) req_invoke (req)
323static void req_destroy (eio_req *grp);
324#define EIO_DESTROY(req) req_destroy (req)
29 325
30enum { 326enum {
31 REQ_QUIT, 327 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}; 328};
37 329
38typedef struct aio_cb { 330#include "libeio/eio.c"
39 struct aio_cb *next;
40 331
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; 332typedef eio_req *aio_req;
333typedef eio_req *aio_req_ornot;
57 334
58static int started; 335static SV *on_next_submit;
59static int nreqs; 336static int next_pri = EIO_PRI_DEFAULT;
60static int reqpipe[2], respipe[2]; 337static int max_outstanding;
61 338
62static aio_req qs, qe; /* queue start, queue end */ 339static s_epipe respipe;
63 340
64static void *aio_proc(void *arg); 341static void req_destroy (aio_req req);
342static void req_cancel (aio_req req);
65 343
66static void 344static void want_poll (void)
67start_thread (void)
68{ 345{
69 sigset_t fullsigset, oldsigset; 346 /* write a dummy byte to the pipe so fh becomes ready */
70 pthread_t tid; 347 s_epipe_signal (&respipe);
71 pthread_attr_t attr;
72
73 pthread_attr_init (&attr);
74 pthread_attr_setstacksize (&attr, STACKSIZE);
75 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
76
77 sigfillset (&fullsigset);
78 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
79
80 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
81 started++;
82
83 sigprocmask (SIG_SETMASK, &oldsigset, 0);
84} 348}
85 349
86static void 350static void done_poll (void)
87send_reqs (void)
88{ 351{
89 /* this write is atomic */ 352 /* read any signals sent by the worker threads */
90 while (qs && write (reqpipe[1], &qs, sizeof qs) == sizeof qs) 353 s_epipe_drain (&respipe);
91 {
92 qs = qs->next;
93 if (!qs) qe = 0;
94 }
95} 354}
96 355
97static void 356/* must be called at most once */
98send_req (aio_req req) 357static SV *req_sv (aio_req req, HV *stash)
99{ 358{
100 nreqs++; 359 if (!req->self)
101 req->next = 0;
102
103 if (qe)
104 { 360 {
105 qe->next = req; 361 req->self = (SV *)newHV ();
106 qe = req; 362 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
107 } 363 }
108 else
109 qe = qs = req;
110 364
111 send_reqs (); 365 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
112} 366}
113 367
114static void 368static aio_req SvAIO_REQ (SV *sv)
115end_thread (void)
116{ 369{
117 aio_req req; 370 MAGIC *mg;
118 New (0, req, 1, aio_cb);
119 req->type = REQ_QUIT;
120 371
121 send_req (req); 372 if (!SvROK (sv)
122} 373 || (SvSTASH (SvRV (sv)) != aio_grp_stash
374 && SvSTASH (SvRV (sv)) != aio_req_stash
375 && !sv_derived_from (sv, "IO::AIO::REQ")))
376 croak ("object of class IO::AIO::REQ expected");
123 377
124static void 378 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
125read_write (pTHX_
126 int dowrite, int fd, off_t offset, size_t length,
127 SV *data, STRLEN dataoffset, SV *callback)
128{
129 aio_req req;
130 STRLEN svlen;
131 char *svptr = SvPV (data, svlen);
132 379
133 SvUPGRADE (data, SVt_PV); 380 return mg ? (aio_req)mg->mg_ptr : 0;
134 SvPOK_on (data); 381}
135 382
136 if (dataoffset < 0) 383static void aio_grp_feed (aio_req grp)
137 dataoffset += svlen; 384{
138 385 if (grp->sv2 && SvOK (grp->sv2))
139 if (dataoffset < 0 || dataoffset > svlen)
140 croak ("data offset outside of string");
141
142 if (dowrite)
143 { 386 {
144 /* write: check length and adjust. */ 387 dSP;
145 if (length < 0 || length + dataoffset > svlen) 388
146 length = svlen - dataoffset; 389 ENTER;
390 SAVETMPS;
391 PUSHMARK (SP);
392 XPUSHs (req_sv (grp, aio_grp_stash));
393 PUTBACK;
394 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
395 SPAGAIN;
396 FREETMPS;
397 LEAVE;
147 } 398 }
148 else 399}
400
401static void req_submit (eio_req *req)
402{
403 eio_submit (req);
404
405 if (expect_false (on_next_submit))
149 { 406 {
150 /* read: grow scalar as necessary */ 407 dSP;
151 svptr = SvGROW (data, length + dataoffset); 408 SV *cb = sv_2mortal (on_next_submit);
409
410 on_next_submit = 0;
411
412 PUSHMARK (SP);
413 PUTBACK;
414 call_sv (cb, G_DISCARD | G_EVAL);
152 } 415 }
153
154 if (length < 0)
155 croak ("length must not be negative");
156
157 Newz (0, req, 1, aio_cb);
158
159 if (!req)
160 croak ("out of memory during aio_req allocation");
161
162 req->type = dowrite ? REQ_WRITE : REQ_READ;
163 req->fd = fd;
164 req->offset = offset;
165 req->length = length;
166 req->data = SvREFCNT_inc (data);
167 req->dataptr = (char *)svptr + dataoffset;
168 req->callback = SvREFCNT_inc (callback);
169
170 send_req (req);
171} 416}
172 417
173static void 418static int req_invoke (eio_req *req)
174poll_wait ()
175{ 419{
176 fd_set rfd; 420 if (req->flags & FLAG_SV2_RO_OFF)
177 FD_ZERO(&rfd); 421 SvREADONLY_off (req->sv2);
178 FD_SET(respipe[0], &rfd);
179 422
180 select (respipe[0] + 1, &rfd, 0, 0, 0); 423 if (!EIO_CANCELLED (req) && req->callback)
181}
182
183static int
184poll_cb (pTHX)
185{
186 dSP;
187 int count = 0;
188 aio_req req;
189
190 while (read (respipe[0], (void *)&req, sizeof (req)) == sizeof (req))
191 { 424 {
192 nreqs--; 425 dSP;
426 static SV *sv_result_cache; /* caches the result integer SV */
427 SV *sv_result;
193 428
194 if (req->type == REQ_QUIT) 429 ENTER;
195 started--; 430 SAVETMPS;
431 PUSHMARK (SP);
432 EXTEND (SP, 1);
433
434 /* do not recreate the result IV from scratch each time */
435 if (expect_true (sv_result_cache))
436 {
437 sv_result = sv_result_cache; sv_result_cache = 0;
438 SvIV_set (sv_result, req->result);
439 SvIOK_only (sv_result);
440 }
196 else 441 else
197 { 442 {
198 int errorno = errno;
199 errno = req->errorno;
200
201 if (req->type == REQ_READ)
202 SvCUR_set (req->data, req->dataoffset
203 + req->result > 0 ? req->result : 0);
204
205 if (req->data)
206 SvREFCNT_dec (req->data);
207
208 if (req->type == REQ_STAT || req->type == REQ_LSTAT || req->type == REQ_FSTAT)
209 {
210 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
211 PL_laststatval = req->result;
212 PL_statcache = *(req->statdata);
213
214 Safefree (req->statdata);
215 }
216
217 PUSHMARK (SP);
218 XPUSHs (sv_2mortal (newSViv (req->result))); 443 sv_result = newSViv (req->result);
219 PUTBACK; 444 SvREADONLY_on (sv_result);
220 call_sv (req->callback, G_VOID);
221 SPAGAIN;
222
223 if (req->callback)
224 SvREFCNT_dec (req->callback);
225
226 errno = errorno;
227 count++;
228 } 445 }
229
230 Safefree (req);
231 }
232
233 if (qs)
234 send_reqs ();
235
236 return count;
237}
238
239static void *
240aio_proc (void *thr_arg)
241{
242 aio_req req;
243
244 /* then loop */
245 while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req))
246 {
247 errno = 0; /* strictly unnecessary */
248 446
249 switch (req->type) 447 switch (req->type)
250 { 448 {
251 case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length, req->offset); break; 449 case EIO_READDIR:
252 case REQ_WRITE: req->result = pwrite64 (req->fd, req->dataptr, req->length, req->offset); break; 450 {
253#if SYS_readahead 451 SV *rv = &PL_sv_undef;
254 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
255#else
256 case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
257#endif
258 452
259 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break; 453 if (req->result >= 0)
260 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break; 454 {
261 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break; 455 int i;
456 char *names = (char *)req->ptr2;
457 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
458 AV *av = newAV ();
262 459
263 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break; 460 av_extend (av, req->result - 1);
264 case REQ_CLOSE: req->result = close (req->fd); break;
265 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
266 461
267 case REQ_FSYNC: req->result = fsync (req->fd); break; 462 for (i = 0; i < req->result; ++i)
268 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break; 463 {
464 if (req->int1 & EIO_READDIR_DENTS)
465 {
466 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
269 467
468 if (req->int1 & EIO_READDIR_CUSTOM2)
469 {
470 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
471 AV *avent = newAV ();
472
473 av_extend (avent, 2);
474
475 if (!sv_type [ent->type])
476 {
477 sv_type [ent->type] = newSViv (ent->type);
478 SvREADONLY_on (sv_type [ent->type]);
479 }
480
481 av_store (avent, 0, namesv);
482 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
483 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
484
485 av_store (av, i, newRV_noinc ((SV *)avent));
486 }
487 else
488 av_store (av, i, namesv);
489
490 ++ent;
491 }
492 else
493 {
494 SV *name = newSVpv (names, 0);
495 av_store (av, i, name);
496 names += SvCUR (name) + 1;
497 }
498 }
499
500 rv = sv_2mortal (newRV_noinc ((SV *)av));
501 }
502
503 PUSHs (rv);
504
505 if (req->int1 & EIO_READDIR_CUSTOM1)
506 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
507 }
508 break;
509
510 case EIO_OPEN:
511 {
512 /* convert fd to fh */
513 SV *fh = &PL_sv_undef;
514
515 if (req->result >= 0)
516 {
517 GV *gv = (GV *)sv_newmortal ();
518 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
519 char sym [64];
520 int symlen;
521
522 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
523 gv_init (gv, aio_stash, sym, symlen, 0);
524
525 symlen = snprintf (
526 sym,
527 sizeof (sym),
528 "%s&=%d",
529 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
530 (int)req->result
531 );
532
533 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
534 fh = (SV *)gv;
535 }
536
537 PUSHs (fh);
538 }
539 break;
540
541 case EIO_STATVFS:
542 case EIO_FSTATVFS:
543 {
544 SV *rv = &PL_sv_undef;
545
546 if (req->result >= 0)
547 {
548 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
549 HV *hv = newHV ();
550
551 rv = sv_2mortal (newRV_noinc ((SV *)hv));
552
553 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
554 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
555 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
556 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
557 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
558 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
559 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
560 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
561 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
562 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
563 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
564 }
565
566 PUSHs (rv);
567 }
568
569 break;
570
571 case EIO_GROUP:
572 req->int1 = 2; /* mark group as finished */
573
574 if (req->sv1)
575 {
576 int i;
577 AV *av = (AV *)req->sv1;
578
579 EXTEND (SP, AvFILL (av) + 1);
580 for (i = 0; i <= AvFILL (av); ++i)
581 PUSHs (*av_fetch (av, i, 0));
582 }
583 break;
584
585 case EIO_NOP:
270 case REQ_QUIT: 586 case EIO_BUSY:
271 write (respipe[1], (void *)&req, sizeof (req)); 587 break;
272 return 0; 588
589 case EIO_READLINK:
590 case EIO_REALPATH:
591 if (req->result > 0)
592 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
593 break;
594
595 case EIO_STAT:
596 case EIO_LSTAT:
597 case EIO_FSTAT:
598 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
599 PL_laststatval = req->result;
600 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
601 PUSHs (sv_result);
602 break;
603
604 case EIO_READ:
605 {
606 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
607 *SvEND (req->sv2) = 0;
608 SvPOK_only (req->sv2);
609 SvSETMAGIC (req->sv2);
610 PUSHs (sv_result);
611 }
612 break;
613
614 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
615 if (req->result > 0)
616 SvIV_set (sv_result, 0);
617 /* FALLTHROUGH */
273 618
274 default: 619 default:
275 req->result = ENOSYS; 620 PUSHs (sv_result);
276 break; 621 break;
277 } 622 }
278 623
279 req->errorno = errno; 624 errno = req->errorno;
280 write (respipe[1], (void *)&req, sizeof (req)); 625
626 PUTBACK;
627 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
628 SPAGAIN;
629
630 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
631 SvREFCNT_dec (sv_result);
632 else
633 sv_result_cache = sv_result;
634
635 FREETMPS;
636 LEAVE;
637
638 PUTBACK;
281 } 639 }
282 640
641 return !!SvTRUE (ERRSV);
642}
643
644static void req_destroy (aio_req req)
645{
646 if (req->self)
647 {
648 sv_unmagic (req->self, PERL_MAGIC_ext);
649 SvREFCNT_dec (req->self);
650 }
651
652 SvREFCNT_dec (req->sv1);
653 SvREFCNT_dec (req->sv2);
654 SvREFCNT_dec (req->callback);
655
656 Safefree (req);
657}
658
659static void req_cancel_subs (aio_req grp)
660{
661 aio_req sub;
662
663 if (grp->type != EIO_GROUP)
664 return;
665
666 SvREFCNT_dec (grp->sv2);
667 grp->sv2 = 0;
668
669 eio_grp_cancel (grp);
670}
671
672static void create_respipe (void)
673{
674 if (s_epipe_renew (&respipe))
675 croak ("IO::AIO: unable to initialize result pipe");
676}
677
678static void poll_wait (void)
679{
680 while (eio_nreqs ())
681 {
682 int size;
683
684 X_LOCK (reslock);
685 size = res_queue.size;
686 X_UNLOCK (reslock);
687
688 if (size)
689 return;
690
691 etp_maybe_start_thread ();
692
693 s_epipe_wait (&respipe);
694 }
695}
696
697static int poll_cb (void)
698{
699 for (;;)
700 {
701 int res = eio_poll ();
702
703 if (res > 0)
704 croak (0);
705
706 if (!max_outstanding || max_outstanding > eio_nreqs ())
707 return res;
708
709 poll_wait ();
710 }
711}
712
713static void atfork_child (void)
714{
715 create_respipe ();
716}
717
718/*****************************************************************************/
719
720#if !_POSIX_MAPPED_FILES
721# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
722# define munmap(addr,length) (errno = ENOSYS, -1)
723#endif
724
725#if !_POSIX_MEMORY_PROTECTION
726# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
727# define PROT_NONE 0
728# define PROT_WRITE 0
729# define MAP_PRIVATE 0
730# define MAP_SHARED 0
731# define MAP_FIXED 0
732#endif
733
734#define MMAP_MAGIC PERL_MAGIC_ext
735
736static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
737{
738 int old_errno = errno;
739 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
740 errno = old_errno;
741
742 mg->mg_obj = 0; /* just in case */
743
744 SvREADONLY_off (sv);
745
746 if (SvPVX (sv) != mg->mg_ptr)
747 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
748
749 SvCUR_set (sv, 0);
750 SvPVX (sv) = 0;
751 SvOK_off (sv);
752
283 return 0; 753 return 0;
284} 754}
285 755
756static MGVTBL mmap_vtbl = {
757 0, 0, 0, 0, mmap_free
758};
759
760/*****************************************************************************/
761
762static SV * get_cb (SV *cb_sv)
763{
764 SvGETMAGIC (cb_sv);
765 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
766}
767
768#define dREQ \
769 SV *cb_cv; \
770 aio_req req; \
771 int req_pri = next_pri; \
772 next_pri = EIO_PRI_DEFAULT; \
773 \
774 cb_cv = get_cb (callback); \
775 \
776 Newz (0, req, 1, eio_req); \
777 if (!req) \
778 croak ("out of memory during eio_req allocation"); \
779 \
780 req->callback = SvREFCNT_inc (cb_cv); \
781 req->pri = req_pri
782
783#define REQ_SEND \
784 PUTBACK; \
785 req_submit (req); \
786 SPAGAIN; \
787 \
788 if (GIMME_V != G_VOID) \
789 XPUSHs (req_sv (req, aio_req_stash));
790
286MODULE = IO::AIO PACKAGE = IO::AIO 791MODULE = IO::AIO PACKAGE = IO::AIO
287 792
793PROTOTYPES: ENABLE
794
288BOOT: 795BOOT:
289{ 796{
290 if (pipe (reqpipe) || pipe (respipe)) 797 static const struct {
291 croak ("unable to initialize request or result pipe"); 798 const char *name;
799 IV iv;
800 } *civ, const_iv[] = {
801# define const_niv(name, value) { # name, (IV) value },
802# define const_iv(name) { # name, (IV) name },
803# define const_eio(name) { # name, (IV) EIO_ ## name },
804 const_iv (EXDEV)
805 const_iv (ENOSYS)
806 const_iv (O_RDONLY)
807 const_iv (O_WRONLY)
808 const_iv (O_RDWR)
809 const_iv (O_CREAT)
810 const_iv (O_TRUNC)
811 const_iv (O_EXCL)
812 const_iv (O_APPEND)
292 813
293 if (fcntl (reqpipe[1], F_SETFL, O_NONBLOCK)) 814 const_iv (O_ASYNC)
294 croak ("cannot set result pipe to nonblocking mode"); 815 const_iv (O_DIRECT)
816 const_iv (O_NOATIME)
295 817
296 if (fcntl (respipe[0], F_SETFL, O_NONBLOCK)) 818 const_iv (O_CLOEXEC)
297 croak ("cannot set result pipe to nonblocking mode"); 819 const_iv (O_NOCTTY)
298} 820 const_iv (O_NOFOLLOW)
821 const_iv (O_NONBLOCK)
822 const_iv (O_EXEC)
823 const_iv (O_SEARCH)
824 const_iv (O_DIRECTORY)
825 const_iv (O_DSYNC)
826 const_iv (O_RSYNC)
827 const_iv (O_SYNC)
828 const_iv (O_TTY_INIT)
299 829
830 const_iv (S_IFIFO)
831 const_iv (S_IFCHR)
832 const_iv (S_IFBLK)
833 const_iv (S_IFLNK)
834 const_iv (S_IFREG)
835 const_iv (S_IFDIR)
836 const_iv (S_IFWHT)
837 const_iv (S_IFSOCK)
838 const_iv (S_IFMT)
839
840 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
841 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
842 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
843 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
844 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
845 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
846
847 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
848 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
849 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
850 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
851 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
852
853 const_iv (ST_RDONLY)
854 const_iv (ST_NOSUID)
855 const_iv (ST_NODEV)
856 const_iv (ST_NOEXEC)
857 const_iv (ST_SYNCHRONOUS)
858 const_iv (ST_MANDLOCK)
859 const_iv (ST_WRITE)
860 const_iv (ST_APPEND)
861 const_iv (ST_IMMUTABLE)
862 const_iv (ST_NOATIME)
863 const_iv (ST_NODIRATIME)
864 const_iv (ST_RELATIME)
865
866 const_iv (PROT_NONE)
867 const_iv (PROT_EXEC)
868 const_iv (PROT_READ)
869 const_iv (PROT_WRITE)
870
871 /*const_iv (MAP_FIXED)*/
872 const_iv (MAP_PRIVATE)
873 const_iv (MAP_SHARED)
874 const_iv (MAP_ANONYMOUS)
875
876 /* linuxish */
877 const_iv (MAP_HUGETLB)
878 const_iv (MAP_LOCKED)
879 const_iv (MAP_NORESERVE)
880 const_iv (MAP_POPULATE)
881 const_iv (MAP_NONBLOCK)
882
883 const_eio (MCL_FUTURE)
884 const_eio (MCL_CURRENT)
885
886 const_eio (MS_ASYNC)
887 const_eio (MS_INVALIDATE)
888 const_eio (MS_SYNC)
889
890 const_eio (MT_MODIFY)
891
892 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
893 const_eio (SYNC_FILE_RANGE_WRITE)
894 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
895
896 const_eio (FALLOC_FL_KEEP_SIZE)
897
898 const_eio (READDIR_DENTS)
899 const_eio (READDIR_DIRS_FIRST)
900 const_eio (READDIR_STAT_ORDER)
901 const_eio (READDIR_FOUND_UNKNOWN)
902
903 const_eio (DT_UNKNOWN)
904 const_eio (DT_FIFO)
905 const_eio (DT_CHR)
906 const_eio (DT_DIR)
907 const_eio (DT_BLK)
908 const_eio (DT_REG)
909 const_eio (DT_LNK)
910 const_eio (DT_SOCK)
911 const_eio (DT_WHT)
912 };
913
914 aio_stash = gv_stashpv ("IO::AIO" , 1);
915 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
916 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
917
918 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
919 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
920
921 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
922
923 create_respipe ();
924
925 if (eio_init (want_poll, done_poll) < 0)
926 croak ("IO::AIO: unable to initialise eio library");
927
928 /* atfork child called in fifo order, so before eio's handler */
929 X_THREAD_ATFORK (0, 0, atfork_child);
930}
931
300void 932void
301min_parallel(nthreads) 933max_poll_reqs (unsigned int nreqs)
302 int nthreads
303 PROTOTYPE: $ 934 PROTOTYPE: $
304 CODE: 935 CODE:
305 while (nthreads > started) 936 eio_set_max_poll_reqs (nreqs);
306 start_thread ();
307 937
308void 938void
309max_parallel(nthreads) 939max_poll_time (double nseconds)
310 int nthreads
311 PROTOTYPE: $ 940 PROTOTYPE: $
312 CODE: 941 CODE:
942 eio_set_max_poll_time (nseconds);
943
944void
945min_parallel (unsigned int nthreads)
946 PROTOTYPE: $
947 CODE:
948 eio_set_min_parallel (nthreads);
949
950void
951max_parallel (unsigned int nthreads)
952 PROTOTYPE: $
953 CODE:
954 eio_set_max_parallel (nthreads);
955
956void
957max_idle (unsigned int nthreads)
958 PROTOTYPE: $
959 CODE:
960 eio_set_max_idle (nthreads);
961
962void
963idle_timeout (unsigned int seconds)
964 PROTOTYPE: $
965 CODE:
966 eio_set_idle_timeout (seconds);
967
968void
969max_outstanding (unsigned int maxreqs)
970 PROTOTYPE: $
971 CODE:
972 max_outstanding = maxreqs;
973
974void
975aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
976 PPCODE:
313{ 977{
314 int cur = started; 978 dREQ;
315 while (cur > nthreads) 979
316 { 980 req->type = EIO_OPEN;
317 end_thread (); 981 req->sv1 = newSVsv (pathname);
318 cur--; 982 req->ptr1 = SvPVbyte_nolen (req->sv1);
983 req->int1 = flags;
984 req->int2 = mode;
985
986 REQ_SEND;
987}
988
989void
990aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
991 ALIAS:
992 aio_fsync = EIO_FSYNC
993 aio_fdatasync = EIO_FDATASYNC
994 PPCODE:
995{
996 int fd = s_fileno_croak (fh, 0);
997 dREQ;
998
999 req->type = ix;
1000 req->sv1 = newSVsv (fh);
1001 req->int1 = fd;
1002
1003 REQ_SEND (req);
1004}
1005
1006void
1007aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1008 PPCODE:
1009{
1010 int fd = s_fileno_croak (fh, 0);
1011 dREQ;
1012
1013 req->type = EIO_SYNC_FILE_RANGE;
1014 req->sv1 = newSVsv (fh);
1015 req->int1 = fd;
1016 req->offs = offset;
1017 req->size = nbytes;
1018 req->int2 = flags;
1019
1020 REQ_SEND (req);
1021}
1022
1023void
1024aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1025 PPCODE:
1026{
1027 int fd = s_fileno_croak (fh, 0);
1028 dREQ;
1029
1030 req->type = EIO_FALLOCATE;
1031 req->sv1 = newSVsv (fh);
1032 req->int1 = fd;
1033 req->int2 = mode;
1034 req->offs = offset;
1035 req->size = len;
1036
1037 REQ_SEND (req);
1038}
1039
1040void
1041aio_close (SV *fh, SV *callback=&PL_sv_undef)
1042 PPCODE:
1043{
1044 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
1045 int fd = s_fileno_croak (fh, 0);
1046 dREQ;
1047
1048 if (close_pipe < 0)
1049 {
1050 int pipefd [2];
1051
1052 if (pipe (pipefd) < 0
1053 || close (pipefd [1]) < 0
1054 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
1055 abort (); /*D*/
1056
1057 close_pipe = pipefd [0];
319 } 1058 }
320 1059
321 while (started > nthreads) 1060 req->type = EIO_DUP2;
1061 req->int1 = close_pipe;
1062 req->sv2 = newSVsv (fh);
1063 req->int2 = fd;
1064
1065 REQ_SEND (req);
1066}
1067
1068void
1069aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1070 ALIAS:
1071 aio_read = EIO_READ
1072 aio_write = EIO_WRITE
1073 PPCODE:
1074{
1075 STRLEN svlen;
1076 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1077 char *svptr = SvPVbyte (data, svlen);
1078 UV len = SvUV (length);
1079
1080 if (dataoffset < 0)
1081 dataoffset += svlen;
1082
1083 if (dataoffset < 0 || dataoffset > svlen)
1084 croak ("dataoffset outside of data scalar");
1085
1086 if (ix == EIO_WRITE)
322 { 1087 {
323 poll_wait (); 1088 /* write: check length and adjust. */
324 poll_cb (aTHX); 1089 if (!SvOK (length) || len + dataoffset > svlen)
325 } 1090 len = svlen - dataoffset;
326}
327
328void
329aio_open(pathname,flags,mode,callback)
330 SV * pathname
331 int flags
332 int mode
333 SV * callback
334 PROTOTYPE: $$$$
335 CODE:
336{
337 aio_req req;
338
339 Newz (0, req, 1, aio_cb);
340
341 if (!req)
342 croak ("out of memory during aio_req allocation");
343
344 req->type = REQ_OPEN;
345 req->data = newSVsv (pathname);
346 req->dataptr = SvPV_nolen (req->data);
347 req->fd = flags;
348 req->mode = mode;
349 req->callback = SvREFCNT_inc (callback);
350
351 send_req (req);
352}
353
354void
355aio_close(fh,callback)
356 InputStream fh
357 SV * callback
358 PROTOTYPE: $$
359 ALIAS:
360 aio_close = REQ_CLOSE
361 aio_fsync = REQ_FSYNC
362 aio_fdatasync = REQ_FDATASYNC
363 CODE:
364{
365 aio_req req;
366
367 Newz (0, req, 1, aio_cb);
368
369 if (!req)
370 croak ("out of memory during aio_req allocation");
371
372 req->type = ix;
373 req->fd = PerlIO_fileno (fh);
374 req->callback = SvREFCNT_inc (callback);
375
376 send_req (req);
377}
378
379void
380aio_read(fh,offset,length,data,dataoffset,callback)
381 InputStream fh
382 UV offset
383 IV length
384 SV * data
385 IV dataoffset
386 SV * callback
387 PROTOTYPE: $$$$$$
388 CODE:
389 read_write (aTHX_ 0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
390
391void
392aio_write(fh,offset,length,data,dataoffset,callback)
393 OutputStream fh
394 UV offset
395 IV length
396 SV * data
397 IV dataoffset
398 SV * callback
399 PROTOTYPE: $$$$$$
400 CODE:
401 read_write (aTHX_ 1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);
402
403void
404aio_readahead(fh,offset,length,callback)
405 InputStream fh
406 UV offset
407 IV length
408 SV * callback
409 PROTOTYPE: $$$$
410 CODE:
411{
412 aio_req req;
413
414 if (length < 0)
415 croak ("length must not be negative");
416
417 Newz (0, req, 1, aio_cb);
418
419 if (!req)
420 croak ("out of memory during aio_req allocation");
421
422 req->type = REQ_READAHEAD;
423 req->fd = PerlIO_fileno (fh);
424 req->offset = offset;
425 req->length = length;
426 req->callback = SvREFCNT_inc (callback);
427
428 send_req (req);
429}
430
431void
432aio_stat(fh_or_path,callback)
433 SV * fh_or_path
434 SV * callback
435 PROTOTYPE: $$
436 ALIAS:
437 aio_lstat = 1
438 CODE:
439{
440 aio_req req;
441
442 Newz (0, req, 1, aio_cb);
443
444 if (!req)
445 croak ("out of memory during aio_req allocation");
446
447 New (0, req->statdata, 1, Stat_t);
448
449 if (!req->statdata)
450 croak ("out of memory during aio_req->statdata allocation");
451
452 if (SvPOK (fh_or_path))
453 {
454 req->type = ix ? REQ_LSTAT : REQ_STAT;
455 req->data = newSVsv (fh_or_path);
456 req->dataptr = SvPV_nolen (req->data);
457 } 1091 }
458 else 1092 else
459 { 1093 {
460 req->type = REQ_FSTAT; 1094 /* read: check type and grow scalar as necessary */
461 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1095 SvUPGRADE (data, SVt_PV);
1096 svptr = SvGROW (data, len + dataoffset + 1);
462 } 1097 }
463 1098
1099 {
1100 dREQ;
1101
1102 req->type = ix;
1103 req->sv1 = newSVsv (fh);
1104 req->int1 = fd;
1105 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1106 req->size = len;
464 req->callback = SvREFCNT_inc (callback); 1107 req->sv2 = SvREFCNT_inc (data);
1108 req->ptr2 = (char *)svptr + dataoffset;
1109 req->stroffset = dataoffset;
465 1110
466 send_req (req); 1111 if (!SvREADONLY (data))
467} 1112 {
1113 SvREADONLY_on (data);
1114 req->flags |= FLAG_SV2_RO_OFF;
1115 }
468 1116
1117 REQ_SEND;
1118 }
1119}
1120
469void 1121void
470aio_unlink(pathname,callback) 1122aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
471 SV * pathname 1123 ALIAS:
472 SV * callback 1124 aio_readlink = EIO_READLINK
473 PROTOTYPE: $$ 1125 aio_realpath = EIO_REALPATH
1126 PPCODE:
1127{
1128 SV *data;
1129 dREQ;
1130
1131 req->type = ix;
1132 req->sv1 = newSVsv (path);
1133 req->ptr1 = SvPVbyte_nolen (req->sv1);
1134
1135 REQ_SEND;
1136}
1137
1138void
1139aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1140 PPCODE:
1141{
1142 int ifd = s_fileno_croak (in_fh , 0);
1143 int ofd = s_fileno_croak (out_fh, 1);
1144 dREQ;
1145
1146 req->type = EIO_SENDFILE;
1147 req->sv1 = newSVsv (out_fh);
1148 req->int1 = ofd;
1149 req->sv2 = newSVsv (in_fh);
1150 req->int2 = ifd;
1151 req->offs = in_offset;
1152 req->size = length;
1153
1154 REQ_SEND;
1155}
1156
1157void
1158aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1159 PPCODE:
1160{
1161 int fd = s_fileno_croak (fh, 0);
1162 dREQ;
1163
1164 req->type = EIO_READAHEAD;
1165 req->sv1 = newSVsv (fh);
1166 req->int1 = fd;
1167 req->offs = offset;
1168 req->size = length;
1169
1170 REQ_SEND;
1171}
1172
1173void
1174aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1175 ALIAS:
1176 aio_stat = EIO_STAT
1177 aio_lstat = EIO_LSTAT
1178 aio_statvfs = EIO_STATVFS
1179 PPCODE:
1180{
1181 dREQ;
1182
1183 req->sv1 = newSVsv (fh_or_path);
1184
1185 if (SvPOK (req->sv1))
1186 {
1187 req->type = ix;
1188 req->ptr1 = SvPVbyte_nolen (req->sv1);
1189 }
1190 else
1191 {
1192 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1193 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1194 }
1195
1196 REQ_SEND;
1197}
1198
1199UV
1200major (UV dev)
1201 ALIAS:
1202 minor = 1
474 CODE: 1203 CODE:
1204 RETVAL = ix ? major (dev) : minor (dev);
1205 OUTPUT:
1206 RETVAL
1207
1208UV
1209makedev (UV maj, UV min)
1210 CODE:
1211 RETVAL = makedev (maj, min);
1212 OUTPUT:
1213 RETVAL
1214
1215void
1216aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1217 PPCODE:
475{ 1218{
476 aio_req req; 1219 dREQ;
1220
1221 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1222 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1223 req->sv1 = newSVsv (fh_or_path);
1224
1225 if (SvPOK (req->sv1))
1226 {
1227 req->type = EIO_UTIME;
1228 req->ptr1 = SvPVbyte_nolen (req->sv1);
1229 }
1230 else
1231 {
1232 req->type = EIO_FUTIME;
1233 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1234 }
1235
1236 REQ_SEND;
1237}
1238
1239void
1240aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1241 PPCODE:
1242{
1243 dREQ;
1244
1245 req->sv1 = newSVsv (fh_or_path);
1246 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1247
1248 if (SvPOK (req->sv1))
1249 {
1250 req->type = EIO_TRUNCATE;
1251 req->ptr1 = SvPVbyte_nolen (req->sv1);
1252 }
1253 else
1254 {
1255 req->type = EIO_FTRUNCATE;
1256 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1257 }
1258
1259 REQ_SEND;
1260}
1261
1262void
1263aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1264 ALIAS:
1265 aio_chmod = EIO_CHMOD
1266 aio_mkdir = EIO_MKDIR
1267 PPCODE:
1268{
1269 dREQ;
1270
1271 req->int2 = mode;
1272 req->sv1 = newSVsv (fh_or_path);
1273
1274 if (SvPOK (req->sv1))
1275 {
1276 req->type = ix;
1277 req->ptr1 = SvPVbyte_nolen (req->sv1);
1278 }
1279 else
1280 {
1281 req->type = EIO_FCHMOD;
1282 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1283 }
1284
1285 REQ_SEND;
1286}
1287
1288void
1289aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1290 PPCODE:
1291{
1292 dREQ;
1293
1294 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1295 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1296 req->sv1 = newSVsv (fh_or_path);
1297
1298 if (SvPOK (req->sv1))
1299 {
1300 req->type = EIO_CHOWN;
1301 req->ptr1 = SvPVbyte_nolen (req->sv1);
1302 }
1303 else
1304 {
1305 req->type = EIO_FCHOWN;
1306 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1307 }
1308
1309 REQ_SEND;
1310}
1311
1312void
1313aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1314 PPCODE:
1315{
1316 dREQ;
477 1317
478 Newz (0, req, 1, aio_cb); 1318 req->type = EIO_READDIR;
1319 req->sv1 = newSVsv (pathname);
1320 req->ptr1 = SvPVbyte_nolen (req->sv1);
1321 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1322
1323 if (flags & EIO_READDIR_DENTS)
1324 req->int1 |= EIO_READDIR_CUSTOM2;
1325
1326 REQ_SEND;
1327}
1328
1329void
1330aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1331 ALIAS:
1332 aio_unlink = EIO_UNLINK
1333 aio_rmdir = EIO_RMDIR
1334 aio_readdir = EIO_READDIR
1335 PPCODE:
1336{
1337 dREQ;
479 1338
480 if (!req) 1339 req->type = ix;
481 croak ("out of memory during aio_req allocation"); 1340 req->sv1 = newSVsv (pathname);
1341 req->ptr1 = SvPVbyte_nolen (req->sv1);
1342
1343 REQ_SEND;
1344}
1345
1346void
1347aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1348 ALIAS:
1349 aio_link = EIO_LINK
1350 aio_symlink = EIO_SYMLINK
1351 aio_rename = EIO_RENAME
1352 PPCODE:
1353{
1354 dREQ;
482 1355
483 req->type = REQ_UNLINK; 1356 req->type = ix;
484 req->data = newSVsv (pathname); 1357 req->sv1 = newSVsv (oldpath);
485 req->dataptr = SvPV_nolen (req->data); 1358 req->ptr1 = SvPVbyte_nolen (req->sv1);
486 req->callback = SvREFCNT_inc (callback); 1359 req->sv2 = newSVsv (newpath);
1360 req->ptr2 = SvPVbyte_nolen (req->sv2);
487 1361
488 send_req (req); 1362 REQ_SEND;
1363}
1364
1365void
1366aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1367 PPCODE:
1368{
1369 dREQ;
1370
1371 req->type = EIO_MKNOD;
1372 req->sv1 = newSVsv (pathname);
1373 req->ptr1 = SvPVbyte_nolen (req->sv1);
1374 req->int2 = (mode_t)mode;
1375 req->offs = dev;
1376
1377 REQ_SEND;
1378}
1379
1380void
1381aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1382 ALIAS:
1383 aio_mtouch = EIO_MTOUCH
1384 aio_msync = EIO_MSYNC
1385 PPCODE:
1386{
1387 STRLEN svlen;
1388 char *svptr = SvPVbyte (data, svlen);
1389 UV len = SvUV (length);
1390
1391 if (offset < 0)
1392 offset += svlen;
1393
1394 if (offset < 0 || offset > svlen)
1395 croak ("offset outside of scalar");
1396
1397 if (!SvOK (length) || len + offset > svlen)
1398 len = svlen - offset;
1399
1400 {
1401 dREQ;
1402
1403 req->type = ix;
1404 req->sv2 = SvREFCNT_inc (data);
1405 req->ptr2 = (char *)svptr + offset;
1406 req->size = len;
1407 req->int1 = flags;
1408
1409 REQ_SEND;
1410 }
1411}
1412
1413void
1414aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1415 PPCODE:
1416{
1417 STRLEN svlen;
1418 char *svptr = SvPVbyte (data, svlen);
1419 UV len = SvUV (length);
1420
1421 if (offset < 0)
1422 offset += svlen;
1423
1424 if (offset < 0 || offset > svlen)
1425 croak ("offset outside of scalar");
1426
1427 if (!SvOK (length) || len + offset > svlen)
1428 len = svlen - offset;
1429
1430 {
1431 dREQ;
1432
1433 req->type = EIO_MLOCK;
1434 req->sv2 = SvREFCNT_inc (data);
1435 req->ptr2 = (char *)svptr + offset;
1436 req->size = len;
1437
1438 REQ_SEND;
1439 }
1440}
1441
1442void
1443aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1444 PPCODE:
1445{
1446 dREQ;
1447
1448 req->type = EIO_MLOCKALL;
1449 req->int1 = flags;
1450
1451 REQ_SEND;
1452}
1453
1454void
1455aio_busy (double delay, SV *callback=&PL_sv_undef)
1456 PPCODE:
1457{
1458 dREQ;
1459
1460 req->type = EIO_BUSY;
1461 req->nv1 = delay < 0. ? 0. : delay;
1462
1463 REQ_SEND;
1464}
1465
1466void
1467aio_group (SV *callback=&PL_sv_undef)
1468 PPCODE:
1469{
1470 dREQ;
1471
1472 req->type = EIO_GROUP;
1473
1474 req_submit (req);
1475 XPUSHs (req_sv (req, aio_grp_stash));
1476}
1477
1478void
1479aio_nop (SV *callback=&PL_sv_undef)
1480 ALIAS:
1481 aio_nop = EIO_NOP
1482 aio_sync = EIO_SYNC
1483 PPCODE:
1484{
1485 dREQ;
1486
1487 req->type = ix;
1488
1489 REQ_SEND;
489} 1490}
490 1491
491int 1492int
1493aioreq_pri (int pri = 0)
1494 CODE:
1495 RETVAL = next_pri;
1496 if (items > 0)
1497 {
1498 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1499 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1500 next_pri = pri;
1501 }
1502 OUTPUT:
1503 RETVAL
1504
1505void
1506aioreq_nice (int nice = 0)
1507 CODE:
1508 nice = next_pri - nice;
1509 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1510 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1511 next_pri = nice;
1512
1513void
1514flush ()
1515 CODE:
1516 while (eio_nreqs ())
1517 {
1518 poll_wait ();
1519 poll_cb ();
1520 }
1521
1522int
1523poll ()
1524 CODE:
1525 poll_wait ();
1526 RETVAL = poll_cb ();
1527 OUTPUT:
1528 RETVAL
1529
1530int
492poll_fileno() 1531poll_fileno ()
1532 CODE:
1533 RETVAL = s_epipe_fd (&respipe);
1534 OUTPUT:
1535 RETVAL
1536
1537int
1538poll_cb (...)
493 PROTOTYPE: 1539 PROTOTYPE:
494 CODE: 1540 CODE:
495 RETVAL = respipe[0]; 1541 RETVAL = poll_cb ();
496 OUTPUT: 1542 OUTPUT:
497 RETVAL 1543 RETVAL
498 1544
1545void
1546poll_wait ()
1547 CODE:
1548 poll_wait ();
1549
499int 1550int
500poll_cb(...) 1551nreqs ()
501 PROTOTYPE:
502 CODE: 1552 CODE:
503 RETVAL = poll_cb (aTHX); 1553 RETVAL = eio_nreqs ();
504 OUTPUT: 1554 OUTPUT:
505 RETVAL 1555 RETVAL
506 1556
507void 1557int
508poll_wait() 1558nready ()
509 PROTOTYPE:
510 CODE: 1559 CODE:
511 poll_wait ();
512
513int
514nreqs()
515 PROTOTYPE:
516 CODE:
517 RETVAL = nreqs; 1560 RETVAL = eio_nready ();
518 OUTPUT: 1561 OUTPUT:
519 RETVAL 1562 RETVAL
520 1563
1564int
1565npending ()
1566 CODE:
1567 RETVAL = eio_npending ();
1568 OUTPUT:
1569 RETVAL
1570
1571int
1572nthreads ()
1573 CODE:
1574 RETVAL = eio_nthreads ();
1575 OUTPUT:
1576 RETVAL
1577
1578int
1579fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1580 CODE:
1581 RETVAL = posix_fadvise (fh, offset, length, advice);
1582 OUTPUT:
1583 RETVAL
1584
1585ssize_t
1586sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1587 CODE:
1588 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1589 OUTPUT:
1590 RETVAL
1591
1592void
1593mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1594 PPCODE:
1595 sv_unmagic (scalar, MMAP_MAGIC);
1596{
1597 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1598 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1599 if (addr == (void *)-1)
1600 XSRETURN_NO;
1601
1602 sv_force_normal (scalar);
1603
1604 /* we store the length in mg_obj, as namlen is I32 :/ */
1605 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1606 ->mg_obj = (SV *)length;
1607
1608 SvUPGRADE (scalar, SVt_PV); /* nop... */
1609
1610 if (!(prot & PROT_WRITE))
1611 SvREADONLY_on (scalar);
1612
1613 if (SvLEN (scalar))
1614 Safefree (SvPVX (scalar));
1615
1616 SvPVX (scalar) = (char *)addr;
1617 SvCUR_set (scalar, length);
1618 SvLEN_set (scalar, 0);
1619 SvPOK_only (scalar);
1620
1621 XSRETURN_YES;
1622}
1623
1624void
1625munmap (SV *scalar)
1626 CODE:
1627 sv_unmagic (scalar, MMAP_MAGIC);
1628
1629int
1630madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1631 ALIAS:
1632 mprotect = 1
1633 CODE:
1634{
1635 STRLEN svlen;
1636 void *addr = SvPVbyte (scalar, svlen);
1637 size_t len = SvUV (length);
1638
1639 if (offset < 0)
1640 offset += svlen;
1641
1642 if (offset < 0 || offset > svlen)
1643 croak ("offset outside of scalar");
1644
1645 if (!SvOK (length) || len + offset > svlen)
1646 len = svlen - offset;
1647
1648 addr = (void *)(((intptr_t)addr) + offset);
1649 eio_page_align (&addr, &len);
1650
1651 switch (ix)
1652 {
1653 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1654 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1655 }
1656}
1657 OUTPUT:
1658 RETVAL
1659
1660int
1661munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1662 CODE:
1663{
1664 STRLEN svlen;
1665 void *addr = SvPVbyte (scalar, svlen);
1666 size_t len = SvUV (length);
1667
1668 if (offset < 0)
1669 offset += svlen;
1670
1671 if (offset < 0 || offset > svlen)
1672 croak ("offset outside of scalar");
1673
1674 if (!SvOK (length) || len + offset > svlen)
1675 len = svlen - offset;
1676
1677 addr = (void *)(((intptr_t)addr) + offset);
1678 eio_page_align (&addr, &len);
1679#if _POSIX_MEMLOCK_RANGE
1680 RETVAL = munlock (addr, len);
1681#else
1682 RETVAL = ((errno = ENOSYS), -1);
1683#endif
1684}
1685 OUTPUT:
1686 RETVAL
1687
1688int
1689munlockall ()
1690 CODE:
1691#if _POSIX_MEMLOCK
1692 munlockall ();
1693#else
1694 RETVAL = -1;
1695 errno = ENOSYS;
1696#endif
1697 OUTPUT:
1698 RETVAL
1699
1700void _on_next_submit (SV *cb)
1701 CODE:
1702 SvREFCNT_dec (on_next_submit);
1703 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1704
1705PROTOTYPES: DISABLE
1706
1707MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1708
1709void
1710cancel (aio_req_ornot req)
1711 CODE:
1712 eio_cancel (req);
1713
1714void
1715cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1716 PPCODE:
1717{
1718 if (GIMME_V != G_VOID)
1719 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1720
1721 if (items > 1)
1722 {
1723 SV *cb_cv =get_cb (callback);
1724
1725 SvREFCNT_dec (req->callback);
1726 req->callback = SvREFCNT_inc (cb_cv);
1727 }
1728}
1729
1730MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1731
1732void
1733add (aio_req grp, ...)
1734 PPCODE:
1735{
1736 int i;
1737
1738 if (grp->int1 == 2)
1739 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1740
1741 for (i = 1; i < items; ++i )
1742 {
1743 aio_req req;
1744
1745 if (GIMME_V != G_VOID)
1746 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1747
1748 req = SvAIO_REQ (ST (i));
1749
1750 if (req)
1751 eio_grp_add (grp, req);
1752 }
1753}
1754
1755void
1756cancel_subs (aio_req_ornot req)
1757 CODE:
1758 req_cancel_subs (req);
1759
1760void
1761result (aio_req grp, ...)
1762 CODE:
1763{
1764 int i;
1765 AV *av;
1766
1767 grp->errorno = errno;
1768
1769 av = newAV ();
1770 av_extend (av, items - 1);
1771
1772 for (i = 1; i < items; ++i )
1773 av_push (av, newSVsv (ST (i)));
1774
1775 SvREFCNT_dec (grp->sv1);
1776 grp->sv1 = (SV *)av;
1777}
1778
1779void
1780errno (aio_req grp, int errorno = errno)
1781 CODE:
1782 grp->errorno = errorno;
1783
1784void
1785limit (aio_req grp, int limit)
1786 CODE:
1787 eio_grp_limit (grp, limit);
1788
1789void
1790feed (aio_req grp, SV *callback=&PL_sv_undef)
1791 CODE:
1792{
1793 SvREFCNT_dec (grp->sv2);
1794 grp->sv2 = newSVsv (callback);
1795 grp->feed = aio_grp_feed;
1796
1797 if (grp->int2 <= 0)
1798 grp->int2 = 2;
1799
1800 eio_grp_limit (grp, grp->int2);
1801}
1802

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