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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.65 by root, Tue Oct 24 00:26:32 2006 UTC vs.
Revision 1.274 by root, Sun Mar 10 12:16:48 2019 UTC

1#if __linux 1#include "libeio/xthread.h"
2# define _GNU_SOURCE
3#endif
4
5#define _REENTRANT 1
6 2
7#include <errno.h> 3#include <errno.h>
8 4
9#include "EXTERN.h" 5#include "EXTERN.h"
10#include "perl.h" 6#include "perl.h"
11#include "XSUB.h" 7#include "XSUB.h"
8#include "perliol.h"
12 9
13#include "autoconf/config.h" 10#if !defined mg_findext
14 11# define mg_findext(sv,type,vtbl) mg_find (sv, type)
15#include <pthread.h> 12#endif
16 13
17#include <stddef.h> 14#include <stddef.h>
15#include <stdlib.h>
18#include <errno.h> 16#include <errno.h>
19#include <sys/time.h>
20#include <sys/select.h>
21#include <sys/types.h> 17#include <sys/types.h>
18#include <sys/socket.h>
22#include <sys/stat.h> 19#include <sys/stat.h>
23#include <limits.h> 20#include <limits.h>
24#include <unistd.h>
25#include <fcntl.h> 21#include <fcntl.h>
26#include <signal.h>
27#include <sched.h> 22#include <sched.h>
28 23
29#if HAVE_SENDFILE 24/* the incompetent fool that created musl keeps __linux__, refuses
30# if __linux 25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
37
38/* perl namespace pollution */
39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
47#ifdef _WIN32
48
49 // perl overrides all those nice libc functions
50
51 #undef malloc
52 #undef free
53 #undef open
54 #undef read
55 #undef write
56 #undef send
57 #undef recv
58 #undef stat
59 #undef lstat
60 #undef fstat
61 #undef truncate
62 #undef ftruncate
63 #undef open
64 #undef link
65 #undef close
66 #undef unlink
67 #undef mkdir
68 #undef rmdir
69 #undef rename
70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
80 #undef utime
81
82 #define EIO_STRUCT_STAT struct _stati64
83 #define EIO_STRUCT_STATI64
84
85#else
86
87 #include <sys/time.h>
31# include <sys/sendfile.h> 88 #include <sys/select.h>
32# elif __freebsd 89 #include <unistd.h>
90 #include <utime.h>
91 #include <signal.h>
92
93 #define EIO_STRUCT_STAT Stat_t
94
95#endif
96
97/*****************************************************************************/
98
99#if __GNUC__ >= 3
100# define expect(expr,value) __builtin_expect ((expr),(value))
101#else
102# define expect(expr,value) (expr)
103#endif
104
105#define expect_false(expr) expect ((expr) != 0, 0)
106#define expect_true(expr) expect ((expr) != 0, 1)
107
108/*****************************************************************************/
109
110#include "config.h"
111
112#if HAVE_SYS_MKDEV_H
33# include <sys/socket.h> 113# include <sys/mkdev.h>
114#elif HAVE_SYS_SYSMACROS_H
115# include <sys/sysmacros.h>
116#endif
117
118#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
119# include <sys/mman.h>
120#endif
121
122#if HAVE_SYS_UIO_H
34# include <sys/uio.h> 123# include <sys/uio.h>
35# elif __hpux 124#endif
36# include <sys/socket.h> 125
37# elif __solaris /* not yet */ 126#if HAVE_ST_XTIMENSEC
127# define ATIMENSEC PL_statcache.st_atimensec
128# define MTIMENSEC PL_statcache.st_mtimensec
129# define CTIMENSEC PL_statcache.st_ctimensec
130#elif HAVE_ST_XTIMESPEC
131# define ATIMENSEC PL_statcache.st_atim.tv_nsec
132# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
133# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
134#else
135# define ATIMENSEC 0
136# define MTIMENSEC 0
137# define CTIMENSEC 0
138#endif
139
140#if HAVE_ST_BIRTHTIMENSEC
141# define BTIMESEC PL_statcache.st_birthtime
142# define BTIMENSEC PL_statcache.st_birthtimensec
143#elif HAVE_ST_BIRTHTIMESPEC
144# define BTIMESEC PL_statcache.st_birthtim.tv_sec
145# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
146#else
147# define BTIMESEC 0
148# define BTIMENSEC 0
149#endif
150
151#if HAVE_ST_GEN
152# define ST_GEN PL_statcache.st_gen
153#else
154# define ST_GEN 0
155#endif
156
157#include "schmorp.h"
158
159#if HAVE_EVENTFD
38# include <sys/sendfile.h> 160# include <sys/eventfd.h>
161#endif
162
163#if HAVE_TIMERFD
164# include <sys/timerfd.h>
165#endif
166
167#if HAVE_RLIMITS
168 #include <sys/time.h>
169 #include <sys/resource.h>
170#endif
171
172typedef SV SV8; /* byte-sv, used for argument-checking */
173typedef int aio_rfd; /* read file desriptor */
174typedef int aio_wfd; /* write file descriptor */
175
176static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
177
178#define EIO_REQ_MEMBERS \
179 SV *callback; \
180 SV *sv1, *sv2; \
181 SV *sv3, *sv4; \
182 STRLEN stroffset; \
183 SV *self;
184
185#define EIO_NO_WRAPPERS 1
186
187#include "libeio/eio.h"
188
189static int req_invoke (eio_req *req);
190#define EIO_FINISH(req) req_invoke (req)
191static void req_destroy (eio_req *grp);
192#define EIO_DESTROY(req) req_destroy (req)
193
194#include "libeio/eio.c"
195
196#if !HAVE_POSIX_FADVISE
197# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
198#endif
199
200#if !HAVE_POSIX_MADVISE
201# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
202#endif
203
204#ifndef MAP_ANONYMOUS
205# ifdef MAP_ANON
206# define MAP_ANONYMOUS MAP_ANON
39# else 207# else
40# error sendfile support requested but not available 208# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
41# endif 209# endif
42#endif 210#endif
43 211
44/* used for struct dirent, AIX doesn't provide it */ 212#ifndef makedev
45#ifndef NAME_MAX 213# define makedev(maj,min) (((maj) << 8) | (min))
46# define NAME_MAX 4096
47#endif 214#endif
215#ifndef major
216# define major(dev) ((dev) >> 8)
217#endif
218#ifndef minor
219# define minor(dev) ((dev) & 0xff)
220#endif
48 221
49#if __ia64 222/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
50# define STACKSIZE 65536 223#ifdef __sun
51#elif __i386 || __x86_64 /* 16k is unreasonably high :( */ 224# undef PAGESIZE
52# define STACKSIZE PTHREAD_STACK_MIN 225#endif
226
227#if PAGESIZE <= 0
228# define PAGESIZE sysconf (_SC_PAGESIZE)
229#endif
230
231/*****************************************************************************/
232
233#if !_POSIX_MAPPED_FILES
234# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
235# define munmap(addr,length) EIO_ENOSYS ()
236#endif
237
238#if !_POSIX_MEMORY_PROTECTION
239# define mprotect(addr,len,prot) EIO_ENOSYS ()
240#endif
241
242#if !MREMAP_MAYMOVE
243# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
244#endif
245
246#define FOREIGN_MAGIC PERL_MAGIC_ext
247
248static int ecb_cold
249mmap_free (pTHX_ SV *sv, MAGIC *mg)
250{
251 int old_errno = errno;
252 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
253 errno = old_errno;
254
255 mg->mg_obj = 0; /* just in case */
256
257 SvREADONLY_off (sv);
258
259 if (SvPVX (sv) != mg->mg_ptr)
260 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
261
262 SvCUR_set (sv, 0);
263 SvPVX (sv) = 0;
264 SvOK_off (sv);
265
266 return 0;
267}
268
269static MGVTBL mmap_vtbl = {
270 0, 0, 0, 0, mmap_free
271};
272
273static int ecb_cold
274sysfree_free (pTHX_ SV *sv, MAGIC *mg)
275{
276 free (mg->mg_ptr);
277 mg->mg_obj = 0; /* just in case */
278
279 SvREADONLY_off (sv);
280
281 if (SvPVX (sv) != mg->mg_ptr)
282 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
283
284 SvCUR_set (sv, 0);
285 SvPVX (sv) = 0;
286 SvOK_off (sv);
287
288 return 0;
289}
290
291static MGVTBL sysfree_vtbl = {
292 0, 0, 0, 0, sysfree_free
293};
294
295/*****************************************************************************/
296
297/* helper: set scalar to foreign ptr with custom free */
298static void
299sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
300{
301 sv_force_normal (sv);
302
303 /* we store the length in mg_obj, as namlen is I32 :/ */
304 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
305 ->mg_obj = (SV *)length;
306
307 SvUPGRADE (sv, SVt_PV); /* nop... */
308
309 if (SvLEN (sv))
310 Safefree (SvPVX (sv));
311
312 SvPVX (sv) = (char *)addr;
313 SvCUR_set (sv, length);
314 SvLEN_set (sv, 0);
315 SvPOK_only (sv);
316}
317
318static void
319sv_clear_foreign (SV *sv)
320{
321 /* todo: iterate over magic and only free ours, but of course */
322 /* the perl5porters will call that (correct) behaviour buggy */
323 sv_unmagic (sv, FOREIGN_MAGIC);
324}
325
326/*****************************************************************************/
327
328/* defines all sorts of constants to 0 unless they are already defined */
329/* also provides const_iv_ and const_niv_ macros for them */
330#include "def0.h"
331
332/*****************************************************************************/
333
334static void
335fiemap (eio_req *req)
336{
337 req->result = -1;
338
339#if HAVE_FIEMAP
340 /* assume some c99 */
341 struct fiemap *fiemap = 0;
342 size_t end_offset;
343 int count = req->int3;
344
345 req->flags |= EIO_FLAG_PTR1_FREE;
346
347 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
348 /* increase in 3.5kb steps */
349 if (count < 0)
350 count = 8;
351
352 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
353 errno = ENOMEM;
354 if (!fiemap)
355 return;
356
357 req->ptr1 = fiemap;
358
359 fiemap->fm_start = req->offs;
360 fiemap->fm_length = req->size;
361 fiemap->fm_flags = req->int2;
362 fiemap->fm_extent_count = count;
363
364 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
365 return;
366
367 if (req->int3 >= 0 /* not autosizing */
368 || !fiemap->fm_mapped_extents /* no more extents */
369 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
370 goto done;
371
372 /* else we have to loop -
373 * it would be tempting (actually I tried that first) to just query the
374 * number of extents needed, but linux often feels like not returning all
375 * extents, without telling us it left any out. this complicates
376 * this quite a bit.
377 */
378
379 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
380
381 for (;;)
382 {
383 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
384 char scratch[3072];
385 struct fiemap *incmap = (struct fiemap *)scratch;
386
387 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
388 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
389 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
390 incmap->fm_flags = fiemap->fm_flags;
391 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
392
393 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
394 return;
395
396 if (!incmap->fm_mapped_extents)
397 goto done;
398
399 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
400 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
401 errno = ENOMEM;
402 if (!fiemap)
403 return;
404
405 req->ptr1 = fiemap;
406
407 for (count = 0; count < incmap->fm_mapped_extents; ++count)
408 {
409 struct fiemap_extent *e = incmap->fm_extents + count;
410
411 if (e->fe_logical + e->fe_length >= end_offset)
412 goto done;
413
414 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
415
416 if (e->fe_flags & FIEMAP_EXTENT_LAST)
417 goto done;
418
419 }
420 }
421
422done:
423 req->result = 0;
424
53#else 425#else
54# define STACKSIZE 16384 426 errno = ENOSYS;
55#endif 427#endif
428}
56 429
57/* buffer size for various temporary buffers */ 430/*****************************************************************************/
58#define AIO_BUFSIZE 65536
59 431
60#define dBUF \ 432static int close_fd; /* dummy fd to close fds via dup2 */
61 char *aio_buf = malloc (AIO_BUFSIZE); \
62 if (!aio_buf) \
63 return -1;
64
65#define fBUF free (aio_buf)
66 433
67enum { 434enum {
68 REQ_QUIT, 435 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
69 REQ_OPEN, REQ_CLOSE,
70 REQ_READ, REQ_WRITE, REQ_READAHEAD,
71 REQ_SENDFILE,
72 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
73 REQ_FSYNC, REQ_FDATASYNC,
74 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
75 REQ_READDIR,
76 REQ_LINK, REQ_SYMLINK,
77 REQ_GROUP, REQ_NOP,
78 REQ_SLEEP,
79}; 436};
80 437
81#define AIO_REQ_KLASS "IO::AIO::REQ"
82#define AIO_GRP_KLASS "IO::AIO::GRP"
83
84typedef struct aio_cb
85{
86 struct aio_cb *volatile next;
87
88 SV *data, *callback;
89 SV *fh, *fh2;
90 void *dataptr, *data2ptr;
91 Stat_t *statdata;
92 off_t offset;
93 size_t length;
94 ssize_t result;
95
96 STRLEN dataoffset;
97 int type;
98 int fd, fd2;
99 int errorno;
100 mode_t mode; /* open */
101
102 unsigned char flags;
103 unsigned char pri;
104
105 SV *self; /* the perl counterpart of this request, if any */
106 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
107} aio_cb;
108
109enum {
110 FLAG_CANCELLED = 0x01,
111};
112
113typedef aio_cb *aio_req; 438typedef eio_req *aio_req;
114typedef aio_cb *aio_req_ornot; 439typedef eio_req *aio_req_ornot;
440typedef eio_wd aio_wd;
115 441
116enum { 442static SV *on_next_submit;
117 PRI_MIN = -4, 443static int next_pri = EIO_PRI_DEFAULT;
118 PRI_MAX = 4,
119
120 DEFAULT_PRI = 0,
121 PRI_BIAS = -PRI_MIN,
122};
123
124static int next_pri = DEFAULT_PRI + PRI_BIAS;
125
126static int started, wanted;
127static volatile int nreqs;
128static int max_outstanding = 1<<30; 444static int max_outstanding;
129static int respipe [2];
130 445
131#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) 446static s_epipe respipe;
132# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
133#else
134# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
135#endif
136 447
137static pthread_mutex_t reslock = AIO_MUTEX_INIT; 448static void req_destroy (aio_req req);
138static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
139static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
140
141static volatile aio_req reqs, reqe; /* queue start, queue end */
142static volatile aio_req ress, rese; /* queue start, queue end */
143
144static void req_invoke (aio_req req); 449static void req_cancel (aio_req req);
145static void req_free (aio_req req); 450
451static void
452want_poll (void)
453{
454 /* write a dummy byte to the pipe so fh becomes ready */
455 s_epipe_signal (&respipe);
456}
457
458static void
459done_poll (void)
460{
461 /* read any signals sent by the worker threads */
462 s_epipe_drain (&respipe);
463}
146 464
147/* must be called at most once */ 465/* must be called at most once */
148static SV *req_sv (aio_req req, const char *klass) 466static SV *
467req_sv (aio_req req, HV *stash)
149{ 468{
150 if (!req->self) 469 if (!req->self)
151 { 470 {
152 req->self = (SV *)newHV (); 471 req->self = (SV *)newHV ();
153 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 472 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
154 } 473 }
155 474
156 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 475 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
157} 476}
158 477
159static aio_req SvAIO_REQ (SV *sv) 478static SV *
479newSVaio_wd (aio_wd wd)
480{
481 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
482}
483
484static aio_req
485SvAIO_REQ (SV *sv)
160{ 486{
161 MAGIC *mg; 487 MAGIC *mg;
162 488
163 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 489 if (!SvROK (sv)
490 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
491 || (SvSTASH (SvRV (sv)) != aio_grp_stash
492 && SvSTASH (SvRV (sv)) != aio_req_stash
493 && !sv_derived_from (sv, "IO::AIO::REQ")))
164 croak ("object of class " AIO_REQ_KLASS " expected"); 494 croak ("object of class IO::AIO::REQ expected");
165 495
166 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 496 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
167 497
168 return mg ? (aio_req)mg->mg_ptr : 0; 498 return mg ? (aio_req)mg->mg_ptr : 0;
169} 499}
170 500
501static aio_wd
502SvAIO_WD (SV *sv)
503{
504 if (!SvROK (sv)
505 || SvTYPE (SvRV (sv)) != SVt_PVMG
506 || SvSTASH (SvRV (sv)) != aio_wd_stash)
507 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
508
509 return (aio_wd)(long)SvIVX (SvRV (sv));
510}
511
512static SV *
513newmortalFH (int fd, int flags)
514{
515 if (fd < 0)
516 return &PL_sv_undef;
517
518 GV *gv = (GV *)sv_newmortal ();
519 char sym[64];
520 int symlen;
521
522 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
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 fd
531 );
532
533 return do_open (gv, sym, symlen, 0, 0, 0, 0)
534 ? (SV *)gv : &PL_sv_undef;
535}
536
537static void
171static void aio_grp_feed (aio_req grp) 538aio_grp_feed (aio_req grp)
172{ 539{
173 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 540 if (grp->sv2 && SvOK (grp->sv2))
174 { 541 {
175 int old_len = grp->length; 542 dSP;
176 543
177 if (grp->fh2 && SvOK (grp->fh2)) 544 ENTER;
545 SAVETMPS;
546 PUSHMARK (SP);
547 XPUSHs (req_sv (grp, aio_grp_stash));
548 PUTBACK;
549 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
550 SPAGAIN;
551 FREETMPS;
552 LEAVE;
553 }
554}
555
556static void
557req_submit (eio_req *req)
558{
559 eio_submit (req);
560
561 if (expect_false (on_next_submit))
562 {
563 dSP;
564 SV *cb = sv_2mortal (on_next_submit);
565
566 on_next_submit = 0;
567
568 PUSHMARK (SP);
569 PUTBACK;
570 call_sv (cb, G_DISCARD | G_EVAL);
571 }
572}
573
574static int
575req_invoke (eio_req *req)
576{
577 if (req->flags & FLAG_SV2_RO_OFF)
578 SvREADONLY_off (req->sv2);
579
580 if (!EIO_CANCELLED (req) && req->callback)
581 {
582 dSP;
583 static SV *sv_result_cache; /* caches the result integer SV */
584 SV *sv_result;
585
586 ENTER;
587 SAVETMPS;
588 PUSHMARK (SP);
589 EXTEND (SP, 1);
590
591 /* do not recreate the result IV from scratch each time */
592 if (expect_true (sv_result_cache))
178 { 593 {
179 dSP; 594 sv_result = sv_result_cache; sv_result_cache = 0;
180 595 SvIV_set (sv_result, req->result);
181 ENTER; 596 SvIOK_only (sv_result);
182 SAVETMPS;
183 PUSHMARK (SP);
184 XPUSHs (req_sv (grp, AIO_GRP_KLASS));
185 PUTBACK;
186 call_sv (grp->fh2, G_VOID | G_EVAL);
187 SPAGAIN;
188 FREETMPS;
189 LEAVE;
190 } 597 }
191 598 else
192 /* stop if no progress has been made */
193 if (old_len == grp->length)
194 { 599 {
195 SvREFCNT_dec (grp->fh2); 600 sv_result = newSViv (req->result);
196 grp->fh2 = 0; 601 SvREADONLY_on (sv_result);
197 break;
198 } 602 }
603
604 switch (req->type)
605 {
606 case EIO_WD_OPEN:
607 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
608 break;
609
610 case EIO_READDIR:
611 {
612 SV *rv = &PL_sv_undef;
613
614 if (req->result >= 0)
615 {
616 int i;
617 char *names = (char *)req->ptr2;
618 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
619 AV *av = newAV ();
620
621 av_extend (av, req->result - 1);
622
623 for (i = 0; i < req->result; ++i)
624 {
625 if (req->int1 & EIO_READDIR_DENTS)
626 {
627 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
628
629 if (req->int1 & EIO_READDIR_CUSTOM2)
630 {
631 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
632 AV *avent = newAV ();
633
634 av_extend (avent, 2);
635
636 if (!sv_type [ent->type])
637 {
638 sv_type [ent->type] = newSViv (ent->type);
639 SvREADONLY_on (sv_type [ent->type]);
640 }
641
642 av_store (avent, 0, namesv);
643 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
644 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
645
646 av_store (av, i, newRV_noinc ((SV *)avent));
647 }
648 else
649 av_store (av, i, namesv);
650
651 ++ent;
652 }
653 else
654 {
655 SV *name = newSVpv (names, 0);
656 av_store (av, i, name);
657 names += SvCUR (name) + 1;
658 }
659 }
660
661 rv = sv_2mortal (newRV_noinc ((SV *)av));
662 }
663
664 PUSHs (rv);
665
666 if (req->int1 & EIO_READDIR_CUSTOM1)
667 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
668 }
669 break;
670
671 case EIO_OPEN:
672 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
673 break;
674
675 case EIO_STATVFS:
676 case EIO_FSTATVFS:
677 {
678 SV *rv = &PL_sv_undef;
679
680#ifndef _WIN32
681 if (req->result >= 0)
682 {
683 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
684 HV *hv = newHV ();
685 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
686 * chooses to make it a struct.
687 */
688 unsigned long fsid = 0;
689 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
690
691 rv = sv_2mortal (newRV_noinc ((SV *)hv));
692
693 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
694 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
695 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
696 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
697 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
698 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
699 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
700 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
701 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
702 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
703 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
704 }
705#endif
706
707 PUSHs (rv);
708 }
709
710 break;
711
712 case EIO_GROUP:
713 req->int1 = 2; /* mark group as finished */
714
715 if (req->sv1)
716 {
717 int i;
718 AV *av = (AV *)req->sv1;
719
720 EXTEND (SP, AvFILL (av) + 1);
721 for (i = 0; i <= AvFILL (av); ++i)
722 PUSHs (*av_fetch (av, i, 0));
723 }
724 break;
725
726 case EIO_NOP:
727 case EIO_BUSY:
728 break;
729
730 case EIO_READLINK:
731 case EIO_REALPATH:
732 if (req->result > 0)
733 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
734 break;
735
736 case EIO_STAT:
737 case EIO_LSTAT:
738 case EIO_FSTAT:
739 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
740
741 if (!(PL_laststatval = req->result))
742 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
743 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
744
745 PUSHs (sv_result);
746 break;
747
748 case EIO_SEEK:
749 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
750 break;
751
752 case EIO_READ:
753 {
754 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
755 *SvEND (req->sv2) = 0;
756 SvPOK_only (req->sv2);
757 SvSETMAGIC (req->sv2);
758 PUSHs (sv_result);
759 }
760 break;
761
762 case EIO_SLURP:
763 {
764 if (req->result >= 0)
765 {
766 /* if length was originally not known, we steal the malloc'ed memory */
767 if (req->flags & EIO_FLAG_PTR2_FREE)
768 {
769 req->flags &= ~EIO_FLAG_PTR2_FREE;
770 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
771 }
772 else
773 {
774 SvCUR_set (req->sv2, req->result);
775 *SvEND (req->sv2) = 0;
776 SvPOK_only (req->sv2);
777 }
778
779 SvSETMAGIC (req->sv2);
780 }
781
782 PUSHs (sv_result);
783 }
784 break;
785
786 case EIO_CUSTOM:
787 if (req->feed == fiemap)
788 {
789#if HAVE_FIEMAP
790 if (!req->result)
791 {
792 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
793
794 if (fiemap->fm_extent_count)
795 {
796 AV *av = newAV ();
797 int i;
798
799 while (fiemap->fm_mapped_extents)
800 {
801 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
802 AV *ext_av = newAV ();
803
804 av_store (ext_av, 3, newSVuv (extent->fe_flags));
805 av_store (ext_av, 2, newSVval64 (extent->fe_length));
806 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
807 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
808
809 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
810 }
811
812 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
813 }
814 else
815 {
816 SvIV_set (sv_result, fiemap->fm_mapped_extents);
817 PUSHs (sv_result);
818 }
819 }
820#endif
821 }
822 else
823 PUSHs (sv_result);
824 break;
825
826#if 0
827 case EIO_CLOSE:
828 PerlIOUnix_refcnt_dec (req->int1);
829 break;
830#endif
831
832 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
833 if (req->result > 0)
834 SvIV_set (sv_result, 0);
835 /* FALLTHROUGH */
836
837 default:
838 PUSHs (sv_result);
839 break;
840 }
841
842 errno = req->errorno;
843
844 PUTBACK;
845 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
846 SPAGAIN;
847
848 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
849 SvREFCNT_dec (sv_result);
850 else
851 sv_result_cache = sv_result;
852
853 FREETMPS;
854 LEAVE;
855
856 PUTBACK;
199 } 857 }
200}
201 858
202static void aio_grp_dec (aio_req grp) 859 return !!SvTRUE (ERRSV);
203{
204 --grp->length;
205
206 /* call feeder, if applicable */
207 aio_grp_feed (grp);
208
209 /* finish, if done */
210 if (!grp->length && grp->fd)
211 {
212 req_invoke (grp);
213 req_free (grp);
214 }
215} 860}
216 861
217static void poll_wait () 862static void
863req_destroy (aio_req req)
218{ 864{
219 fd_set rfd;
220
221 while (nreqs)
222 {
223 aio_req req;
224#if !(__i386 || __x86_64) /* safe without sempahore on this archs */
225 pthread_mutex_lock (&reslock);
226#endif
227 req = ress;
228#if !(__i386 || __x86_64) /* safe without sempahore on this archs */
229 pthread_mutex_unlock (&reslock);
230#endif
231
232 if (req)
233 return;
234
235 FD_ZERO(&rfd);
236 FD_SET(respipe [0], &rfd);
237
238 select (respipe [0] + 1, &rfd, 0, 0, 0);
239 }
240}
241
242static void req_invoke (aio_req req)
243{
244 dSP;
245 int errorno = errno;
246
247 if (req->flags & FLAG_CANCELLED || !SvOK (req->callback))
248 return;
249
250 errno = req->errorno;
251
252 ENTER;
253 SAVETMPS;
254 PUSHMARK (SP);
255 EXTEND (SP, 1);
256
257 switch (req->type)
258 {
259 case REQ_READDIR:
260 {
261 SV *rv = &PL_sv_undef;
262
263 if (req->result >= 0)
264 {
265 char *buf = req->data2ptr;
266 AV *av = newAV ();
267
268 while (req->result)
269 {
270 SV *sv = newSVpv (buf, 0);
271
272 av_push (av, sv);
273 buf += SvCUR (sv) + 1;
274 req->result--;
275 }
276
277 rv = sv_2mortal (newRV_noinc ((SV *)av));
278 }
279
280 PUSHs (rv);
281 }
282 break;
283
284 case REQ_OPEN:
285 {
286 /* convert fd to fh */
287 SV *fh;
288
289 PUSHs (sv_2mortal (newSViv (req->result)));
290 PUTBACK;
291 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
292 SPAGAIN;
293
294 fh = SvREFCNT_inc (POPs);
295
296 PUSHMARK (SP);
297 XPUSHs (sv_2mortal (fh));
298 }
299 break;
300
301 case REQ_GROUP:
302 req->fd = 2; /* mark group as finished */
303
304 if (req->data)
305 {
306 int i;
307 AV *av = (AV *)req->data;
308
309 EXTEND (SP, AvFILL (av) + 1);
310 for (i = 0; i <= AvFILL (av); ++i)
311 PUSHs (*av_fetch (av, i, 0));
312 }
313 break;
314
315 case REQ_NOP:
316 case REQ_SLEEP:
317 break;
318
319 default:
320 PUSHs (sv_2mortal (newSViv (req->result)));
321 break;
322 }
323
324
325 PUTBACK;
326 call_sv (req->callback, G_VOID | G_EVAL);
327 SPAGAIN;
328
329 FREETMPS;
330 LEAVE;
331
332 errno = errorno;
333
334 if (SvTRUE (ERRSV))
335 {
336 req_free (req);
337 croak (0);
338 }
339}
340
341static void req_free (aio_req req)
342{
343 if (req->grp)
344 {
345 aio_req grp = req->grp;
346
347 /* unlink request */
348 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
349 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
350
351 if (grp->grp_first == req)
352 grp->grp_first = req->grp_next;
353
354 aio_grp_dec (grp);
355 }
356
357 if (req->self) 865 if (req->self)
358 { 866 {
359 sv_unmagic (req->self, PERL_MAGIC_ext); 867 sv_unmagic (req->self, PERL_MAGIC_ext);
360 SvREFCNT_dec (req->self); 868 SvREFCNT_dec (req->self);
361 } 869 }
362 870
363 SvREFCNT_dec (req->data);
364 SvREFCNT_dec (req->fh); 871 SvREFCNT_dec (req->sv1);
365 SvREFCNT_dec (req->fh2); 872 SvREFCNT_dec (req->sv2);
873 SvREFCNT_dec (req->sv3);
874 SvREFCNT_dec (req->sv4);
366 SvREFCNT_dec (req->callback); 875 SvREFCNT_dec (req->callback);
367 Safefree (req->statdata);
368 876
369 if (req->type == REQ_READDIR && req->result >= 0)
370 free (req->data2ptr);
371
372 Safefree (req); 877 free (req);
373} 878}
374 879
375static void req_cancel (aio_req req) 880static void
881req_cancel_subs (aio_req grp)
376{ 882{
377 req->flags |= FLAG_CANCELLED;
378
379 if (req->type == REQ_GROUP) 883 if (grp->type != EIO_GROUP)
884 return;
885
886 SvREFCNT_dec (grp->sv2);
887 grp->sv2 = 0;
888
889 eio_grp_cancel (grp);
890}
891
892static void ecb_cold
893create_respipe (void)
894{
895 if (s_epipe_renew (&respipe))
896 croak ("IO::AIO: unable to initialize result pipe");
897}
898
899static void
900poll_wait (void)
901{
902 while (eio_nreqs ())
380 { 903 {
381 aio_req sub; 904 int size;
382 905
383 for (sub = req->grp_first; sub; sub = sub->grp_next) 906 X_LOCK (EIO_POOL->reslock);
384 req_cancel (sub); 907 size = EIO_POOL->res_queue.size;
908 X_UNLOCK (EIO_POOL->reslock);
909
910 if (size)
911 return;
912
913 etp_maybe_start_thread (EIO_POOL);
914
915 s_epipe_wait (&respipe);
385 } 916 }
386} 917}
387 918
388static int poll_cb () 919static int
920poll_cb (void)
389{ 921{
390 dSP;
391 int count = 0;
392 int do_croak = 0;
393 aio_req req;
394
395 for (;;) 922 for (;;)
396 { 923 {
397 pthread_mutex_lock (&reslock); 924 int res = eio_poll ();
398 req = ress;
399 925
400 if (req) 926 if (res > 0)
927 croak (0);
928
929 if (!max_outstanding || max_outstanding > eio_nreqs ())
930 return res;
931
932 poll_wait ();
933 }
934}
935
936static void ecb_cold
937reinit (void)
938{
939 create_respipe ();
940
941 if (eio_init (want_poll, done_poll) < 0)
942 croak ("IO::AIO: unable to initialise eio library");
943}
944
945/*****************************************************************************/
946
947static SV *
948get_cb (SV *cb_sv)
949{
950 SvGETMAGIC (cb_sv);
951 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
952}
953
954static aio_req ecb_noinline
955dreq (SV *callback)
956{
957 SV *cb_cv;
958 aio_req req;
959 int req_pri = next_pri;
960 next_pri = EIO_PRI_DEFAULT;
961
962 cb_cv = get_cb (callback);
963
964 req = calloc (sizeof (*req), 1);
965 if (!req)
966 croak ("out of memory during eio_req allocation");
967
968 req->callback = SvREFCNT_inc (cb_cv);
969 req->pri = req_pri;
970
971 return req;
972}
973
974#define dREQ \
975 aio_req req = dreq (callback); \
976
977#define REQ_SEND \
978 PUTBACK; \
979 req_submit (req); \
980 SPAGAIN; \
981 \
982 if (GIMME_V != G_VOID) \
983 XPUSHs (req_sv (req, aio_req_stash));
984
985ecb_inline void
986req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
987{
988 if (expect_false (SvROK (path)))
989 {
990 SV *rv = SvRV (path);
991 SV *wdob;
992
993 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
401 { 994 {
402 ress = req->next; 995 path = AvARRAY (rv)[1];
996 wdob = AvARRAY (rv)[0];
403 997
404 if (!ress) 998 if (SvOK (wdob))
405 { 999 {
406 /* read any signals sent by the worker threads */ 1000 *wd = SvAIO_WD (wdob);
407 char buf [32]; 1001 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
408 while (read (respipe [0], buf, 32) == 32)
409 ;
410
411 rese = 0;
412 } 1002 }
1003 else
1004 *wd = EIO_INVALID_WD;
413 } 1005 }
414 1006 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
415 pthread_mutex_unlock (&reslock);
416
417 if (!req)
418 break;
419
420 --nreqs;
421
422 if (req->type == REQ_QUIT)
423 started--;
424 else if (req->type == REQ_GROUP && req->length)
425 { 1007 {
426 req->fd = 1; /* mark request as delayed */ 1008 *wd = (aio_wd)(long)SvIVX (rv);
427 continue; 1009 *wdsv = SvREFCNT_inc_NN (rv);
1010 *ptr = ".";
1011 return; /* path set to "." */
428 } 1012 }
429 else 1013 else
430 { 1014 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
431 if (req->type == REQ_READ)
432 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
433
434 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
435 SvREADONLY_off (req->data);
436
437 if (req->statdata)
438 {
439 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
440 PL_laststatval = req->result;
441 PL_statcache = *(req->statdata);
442 }
443
444 req_invoke (req);
445
446 count++;
447 }
448
449 req_free (req);
450 } 1015 }
451 1016
452 return count; 1017 *pathsv = newSVsv (path);
1018 *ptr = SvPVbyte_nolen (*pathsv);
453} 1019}
454 1020
455static void *aio_proc(void *arg); 1021static void ecb_noinline
456 1022req_set_path1 (aio_req req, SV *path)
457static void start_thread (void)
458{ 1023{
459 sigset_t fullsigset, oldsigset; 1024 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
460 pthread_t tid;
461 pthread_attr_t attr;
462
463 pthread_attr_init (&attr);
464 pthread_attr_setstacksize (&attr, STACKSIZE);
465 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
466
467 sigfillset (&fullsigset);
468 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
469
470 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
471 started++;
472
473 sigprocmask (SIG_SETMASK, &oldsigset, 0);
474} 1025}
475 1026
476static void req_send (aio_req req) 1027static void ecb_noinline
1028req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
477{ 1029{
478 while (started < wanted && nreqs >= started) 1030 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
479 start_thread ();
480 1031
481 ++nreqs; 1032 switch (SvTYPE (rv))
482
483 pthread_mutex_lock (&reqlock);
484
485 req->next = 0;
486
487 if (reqe)
488 { 1033 {
489 reqe->next = req; 1034 case SVt_PVIO:
490 reqe = req; 1035 case SVt_PVLV:
1036 case SVt_PVGV:
1037 req->type = type_fh;
1038 req->sv1 = newSVsv (fh_or_path);
1039 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1040 break;
1041
1042 default:
1043 req->type = type_path;
1044 req_set_path1 (req, fh_or_path);
1045 break;
491 } 1046 }
492 else
493 reqe = reqs = req;
494
495 pthread_cond_signal (&reqwait);
496 pthread_mutex_unlock (&reqlock);
497
498 if (nreqs > max_outstanding)
499 for (;;)
500 {
501 poll_cb ();
502
503 if (nreqs <= max_outstanding)
504 break;
505
506 poll_wait ();
507 }
508}
509
510static void end_thread (void)
511{
512 aio_req req;
513 Newz (0, req, 1, aio_cb);
514 req->type = REQ_QUIT;
515
516 req_send (req);
517}
518
519static void min_parallel (int nthreads)
520{
521 if (wanted < nthreads)
522 wanted = nthreads;
523}
524
525static void max_parallel (int nthreads)
526{
527 int cur = started;
528
529 if (wanted > nthreads)
530 wanted = nthreads;
531
532 while (cur > wanted)
533 {
534 end_thread ();
535 cur--;
536 }
537
538 while (started > wanted)
539 {
540 poll_wait ();
541 poll_cb ();
542 }
543}
544
545static void create_pipe ()
546{
547 if (pipe (respipe))
548 croak ("unable to initialize result pipe");
549
550 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
551 croak ("cannot set result pipe to nonblocking mode");
552
553 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
554 croak ("cannot set result pipe to nonblocking mode");
555} 1047}
556 1048
557/*****************************************************************************/ 1049/*****************************************************************************/
558/* work around various missing functions */
559 1050
560#if !HAVE_PREADWRITE 1051static void
561# define pread aio_pread 1052ts_set (struct timespec *ts, NV value)
562# define pwrite aio_pwrite
563
564/*
565 * make our pread/pwrite safe against themselves, but not against
566 * normal read/write by using a mutex. slows down execution a lot,
567 * but that's your problem, not mine.
568 */
569static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
570
571static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
572{ 1053{
573 ssize_t res; 1054 ts->tv_sec = value;
574 off_t ooffset; 1055 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
575
576 pthread_mutex_lock (&preadwritelock);
577 ooffset = lseek (fd, 0, SEEK_CUR);
578 lseek (fd, offset, SEEK_SET);
579 res = read (fd, buf, count);
580 lseek (fd, ooffset, SEEK_SET);
581 pthread_mutex_unlock (&preadwritelock);
582
583 return res;
584} 1056}
585 1057
586static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1058static NV
1059ts_get (const struct timespec *ts)
587{ 1060{
588 ssize_t res; 1061 return ts->tv_sec + ts->tv_nsec * 1e-9;
589 off_t ooffset;
590
591 pthread_mutex_lock (&preadwritelock);
592 ooffset = lseek (fd, 0, SEEK_CUR);
593 lseek (fd, offset, SEEK_SET);
594 res = write (fd, buf, count);
595 lseek (fd, offset, SEEK_SET);
596 pthread_mutex_unlock (&preadwritelock);
597
598 return res;
599} 1062}
600#endif
601 1063
602#if !HAVE_FDATASYNC 1064/*****************************************************************************/
603# define fdatasync fsync
604#endif
605 1065
606#if !HAVE_READAHEAD 1066XS(boot_IO__AIO) ecb_cold;
607# define readahead aio_readahead
608 1067
609static ssize_t readahead (int fd, off_t offset, size_t count) 1068MODULE = IO::AIO PACKAGE = IO::AIO
610{
611 dBUF;
612 1069
613 while (count > 0) 1070PROTOTYPES: ENABLE
614 {
615 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
616 1071
617 pread (fd, aio_buf, len, offset); 1072BOOT:
618 offset += len;
619 count -= len;
620 }
621
622 fBUF;
623
624 errno = 0;
625}
626#endif
627
628#if !HAVE_READDIR_R
629# define readdir_r aio_readdir_r
630
631static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
632
633static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
634{ 1073{
635 struct dirent *e; 1074 static const struct {
636 int errorno; 1075 const char *name;
1076 IV iv;
1077 } *civ, const_iv[] = {
1078# define const_niv(name, value) { # name, (IV) value },
1079# define const_iv(name) { # name, (IV) name },
1080# define const_eio(name) { # name, (IV) EIO_ ## name },
637 1081
638 pthread_mutex_lock (&readdirlock); 1082 /* you have to re-run ./gendef0 after adding/removing any constants here */
1083 /* the first block can be undef if missing */
1084 const_iv (ENOSYS)
1085 const_iv (EXDEV)
1086 const_iv (EBADR)
639 1087
640 e = readdir (dirp); 1088 /* for lseek */
641 errorno = errno; 1089 const_iv (SEEK_DATA)
1090 const_iv (SEEK_HOLE)
642 1091
643 if (e) 1092 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
644 { 1093 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
645 *res = ent; 1094 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
646 strcpy (ent->d_name, e->d_name); 1095 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
647 } 1096 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
648 else 1097 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
649 *res = 0;
650 1098
651 pthread_mutex_unlock (&readdirlock); 1099 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1100 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1101 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1102 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1103 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
652 1104
653 errno = errorno; 1105 /* the second block will be 0 when missing */
654 return e ? 0 : -1; 1106 const_iv (O_ACCMODE)
655}
656#endif
657 1107
658/* sendfile always needs emulation */ 1108 const_iv (O_RDONLY)
659static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) 1109 const_iv (O_WRONLY)
660{ 1110 const_iv (O_RDWR)
661 ssize_t res; 1111 const_iv (O_CREAT)
1112 const_iv (O_TRUNC)
1113 const_iv (O_EXCL)
1114 const_iv (O_APPEND)
662 1115
663 if (!count) 1116 const_iv (O_ASYNC)
664 return 0; 1117 const_iv (O_DIRECT)
1118 const_iv (O_NOATIME)
665 1119
666#if HAVE_SENDFILE 1120 const_iv (O_CLOEXEC)
667# if __linux 1121 const_iv (O_NOCTTY)
668 res = sendfile (ofd, ifd, &offset, count); 1122 const_iv (O_NOFOLLOW)
1123 const_iv (O_NONBLOCK)
1124 const_iv (O_EXEC)
1125 const_iv (O_SEARCH)
1126 const_iv (O_DIRECTORY)
1127 const_iv (O_DSYNC)
1128 const_iv (O_RSYNC)
1129 const_iv (O_SYNC)
1130 const_iv (O_PATH)
1131 const_iv (O_TMPFILE)
1132 const_iv (O_TTY_INIT)
669 1133
670# elif __freebsd 1134 const_iv (S_IFIFO)
671 /* 1135 const_iv (S_IFCHR)
672 * Of course, the freebsd sendfile is a dire hack with no thoughts 1136 const_iv (S_IFBLK)
673 * wasted on making it similar to other I/O functions. 1137 const_iv (S_IFLNK)
674 */ 1138 const_iv (S_IFREG)
1139 const_iv (S_IFDIR)
1140 const_iv (S_IFWHT)
1141 const_iv (S_IFSOCK)
1142 const_iv (S_IFMT)
1143
1144 const_iv (ST_RDONLY)
1145 const_iv (ST_NOSUID)
1146 const_iv (ST_NODEV)
1147 const_iv (ST_NOEXEC)
1148 const_iv (ST_SYNCHRONOUS)
1149 const_iv (ST_MANDLOCK)
1150 const_iv (ST_WRITE)
1151 const_iv (ST_APPEND)
1152 const_iv (ST_IMMUTABLE)
1153 const_iv (ST_NOATIME)
1154 const_iv (ST_NODIRATIME)
1155 const_iv (ST_RELATIME)
1156
1157 const_iv (PROT_NONE)
1158 const_iv (PROT_EXEC)
1159 const_iv (PROT_READ)
1160 const_iv (PROT_WRITE)
1161
1162 const_iv (MAP_PRIVATE)
1163 const_iv (MAP_SHARED)
1164 const_iv (MAP_FIXED)
1165 const_iv (MAP_ANONYMOUS)
1166
1167 /* linuxish */
1168 const_iv (MAP_LOCKED)
1169 const_iv (MAP_NORESERVE)
1170 const_iv (MAP_POPULATE)
1171 const_iv (MAP_NONBLOCK)
1172 const_iv (MAP_GROWSDOWN)
1173 const_iv (MAP_32BIT)
1174 const_iv (MAP_HUGETLB)
1175 const_iv (MAP_STACK)
1176
1177 const_iv (MREMAP_MAYMOVE)
1178 const_iv (MREMAP_FIXED)
1179
1180 const_iv (F_DUPFD_CLOEXEC)
1181
1182 const_iv (MSG_CMSG_CLOEXEC)
1183 const_iv (SOCK_CLOEXEC)
1184
1185 const_iv (F_OFD_GETLK)
1186 const_iv (F_OFD_SETLK)
1187 const_iv (F_OFD_GETLKW)
1188
1189 const_iv (FIFREEZE)
1190 const_iv (FITHAW)
1191 const_iv (FITRIM)
1192 const_iv (FICLONE)
1193 const_iv (FICLONERANGE)
1194 const_iv (FIDEDUPERANGE)
1195
1196 const_iv (FS_IOC_GETFLAGS)
1197 const_iv (FS_IOC_SETFLAGS)
1198 const_iv (FS_IOC_GETVERSION)
1199 const_iv (FS_IOC_SETVERSION)
1200 const_iv (FS_IOC_FIEMAP)
1201 const_iv (FS_IOC_FSGETXATTR)
1202 const_iv (FS_IOC_FSSETXATTR)
1203 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1204 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1205 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1206
1207 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1208
1209 const_iv (FS_SECRM_FL)
1210 const_iv (FS_UNRM_FL)
1211 const_iv (FS_COMPR_FL)
1212 const_iv (FS_SYNC_FL)
1213 const_iv (FS_IMMUTABLE_FL)
1214 const_iv (FS_APPEND_FL)
1215 const_iv (FS_NODUMP_FL)
1216 const_iv (FS_NOATIME_FL)
1217 const_iv (FS_DIRTY_FL)
1218 const_iv (FS_COMPRBLK_FL)
1219 const_iv (FS_NOCOMP_FL)
1220 const_iv (FS_ENCRYPT_FL)
1221 const_iv (FS_BTREE_FL)
1222 const_iv (FS_INDEX_FL)
1223 const_iv (FS_JOURNAL_DATA_FL)
1224 const_iv (FS_NOTAIL_FL)
1225 const_iv (FS_DIRSYNC_FL)
1226 const_iv (FS_TOPDIR_FL)
1227 const_iv (FS_FL_USER_MODIFIABLE)
1228
1229 const_iv (FS_XFLAG_REALTIME)
1230 const_iv (FS_XFLAG_PREALLOC)
1231 const_iv (FS_XFLAG_IMMUTABLE)
1232 const_iv (FS_XFLAG_APPEND)
1233 const_iv (FS_XFLAG_SYNC)
1234 const_iv (FS_XFLAG_NOATIME)
1235 const_iv (FS_XFLAG_NODUMP)
1236 const_iv (FS_XFLAG_RTINHERIT)
1237 const_iv (FS_XFLAG_PROJINHERIT)
1238 const_iv (FS_XFLAG_NOSYMLINKS)
1239 const_iv (FS_XFLAG_EXTSIZE)
1240 const_iv (FS_XFLAG_EXTSZINHERIT)
1241 const_iv (FS_XFLAG_NODEFRAG)
1242 const_iv (FS_XFLAG_FILESTREAM)
1243 const_iv (FS_XFLAG_DAX)
1244 const_iv (FS_XFLAG_HASATTR)
1245
1246 const_iv (FIEMAP_FLAG_SYNC)
1247 const_iv (FIEMAP_FLAG_XATTR)
1248 const_iv (FIEMAP_FLAGS_COMPAT)
1249 const_iv (FIEMAP_EXTENT_LAST)
1250 const_iv (FIEMAP_EXTENT_UNKNOWN)
1251 const_iv (FIEMAP_EXTENT_DELALLOC)
1252 const_iv (FIEMAP_EXTENT_ENCODED)
1253 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1254 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1255 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1256 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1257 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1258 const_iv (FIEMAP_EXTENT_MERGED)
1259 const_iv (FIEMAP_EXTENT_SHARED)
1260
1261 const_iv (SPLICE_F_MOVE)
1262 const_iv (SPLICE_F_NONBLOCK)
1263 const_iv (SPLICE_F_MORE)
1264 const_iv (SPLICE_F_GIFT)
1265
1266 const_iv (EFD_CLOEXEC)
1267 const_iv (EFD_NONBLOCK)
1268 const_iv (EFD_SEMAPHORE)
1269
1270 const_iv (CLOCK_REALTIME)
1271 const_iv (CLOCK_MONOTONIC)
1272 const_iv (CLOCK_BOOTTIME)
1273 const_iv (CLOCK_REALTIME_ALARM)
1274 const_iv (CLOCK_BOOTTIME_ALARM)
1275
1276 const_iv (TFD_NONBLOCK)
1277 const_iv (TFD_CLOEXEC)
1278
1279 const_iv (TFD_TIMER_ABSTIME)
1280 const_iv (TFD_TIMER_CANCEL_ON_SET)
1281
1282 /* these are libeio constants, and are independent of gendef0 */
1283 const_eio (SEEK_SET)
1284 const_eio (SEEK_CUR)
1285 const_eio (SEEK_END)
1286
1287 const_eio (MCL_FUTURE)
1288 const_eio (MCL_CURRENT)
1289 const_eio (MCL_ONFAULT)
1290
1291 const_eio (MS_ASYNC)
1292 const_eio (MS_INVALIDATE)
1293 const_eio (MS_SYNC)
1294
1295 const_eio (MT_MODIFY)
1296
1297 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1298 const_eio (SYNC_FILE_RANGE_WRITE)
1299 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1300
1301 const_eio (FALLOC_FL_KEEP_SIZE)
1302 const_eio (FALLOC_FL_PUNCH_HOLE)
1303 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1304 const_eio (FALLOC_FL_ZERO_RANGE)
1305 const_eio (FALLOC_FL_INSERT_RANGE)
1306 const_eio (FALLOC_FL_UNSHARE_RANGE)
1307
1308 const_eio (RENAME_NOREPLACE)
1309 const_eio (RENAME_EXCHANGE)
1310 const_eio (RENAME_WHITEOUT)
1311
1312 const_eio (READDIR_DENTS)
1313 const_eio (READDIR_DIRS_FIRST)
1314 const_eio (READDIR_STAT_ORDER)
1315 const_eio (READDIR_FOUND_UNKNOWN)
1316
1317 const_eio (DT_UNKNOWN)
1318 const_eio (DT_FIFO)
1319 const_eio (DT_CHR)
1320 const_eio (DT_DIR)
1321 const_eio (DT_BLK)
1322 const_eio (DT_REG)
1323 const_eio (DT_LNK)
1324 const_eio (DT_SOCK)
1325 const_eio (DT_WHT)
1326 };
1327
1328 aio_stash = gv_stashpv ("IO::AIO" , 1);
1329 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1330 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1331 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1332
1333 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1334 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1335
1336 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1337
1338 /* allocate dummy pipe fd for aio_close */
675 { 1339 {
676 off_t sbytes; 1340 int pipefd [2];
677 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
678 1341
679 if (res < 0 && sbytes) 1342 if (
680 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ 1343#ifdef _WIN32
681 res = sbytes; 1344 _pipe (pipefd, 1, _O_BINARY) < 0
1345#else
1346 pipe (pipefd) < 0
1347 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1348#endif
1349 || close (pipefd [1]) < 0
1350 )
1351 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1352
1353 close_fd = pipefd [0];
682 } 1354 }
683 1355
684# elif __hpux 1356 reinit ();
685 res = sendfile (ofd, ifd, offset, count, 0, 0); 1357}
686 1358
687# elif __solaris 1359void
1360reinit ()
1361 PROTOTYPE:
1362
1363void
1364max_poll_reqs (unsigned int nreqs)
1365 PROTOTYPE: $
1366 CODE:
1367 eio_set_max_poll_reqs (nreqs);
1368
1369void
1370max_poll_time (double nseconds)
1371 PROTOTYPE: $
1372 CODE:
1373 eio_set_max_poll_time (nseconds);
1374
1375void
1376min_parallel (unsigned int nthreads)
1377 PROTOTYPE: $
1378 CODE:
1379 eio_set_min_parallel (nthreads);
1380
1381void
1382max_parallel (unsigned int nthreads)
1383 PROTOTYPE: $
1384 CODE:
1385 eio_set_max_parallel (nthreads);
1386
1387void
1388max_idle (unsigned int nthreads)
1389 PROTOTYPE: $
1390 CODE:
1391 eio_set_max_idle (nthreads);
1392
1393void
1394idle_timeout (unsigned int seconds)
1395 PROTOTYPE: $
1396 CODE:
1397 eio_set_idle_timeout (seconds);
1398
1399void
1400max_outstanding (unsigned int maxreqs)
1401 PROTOTYPE: $
1402 CODE:
1403 max_outstanding = maxreqs;
1404
1405void
1406aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1407 PPCODE:
1408{
1409 dREQ;
1410
1411 req->type = EIO_WD_OPEN;
1412 req_set_path1 (req, pathname);
1413
1414 REQ_SEND;
1415}
1416
1417void
1418aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1419 PPCODE:
1420{
1421 dREQ;
1422
1423 req->type = EIO_OPEN;
1424 req_set_path1 (req, pathname);
1425 req->int1 = flags;
1426 req->int2 = mode;
1427
1428 REQ_SEND;
1429}
1430
1431void
1432aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1433 ALIAS:
1434 aio_fsync = EIO_FSYNC
1435 aio_fdatasync = EIO_FDATASYNC
1436 aio_syncfs = EIO_SYNCFS
1437 PPCODE:
1438{
1439 int fd = s_fileno_croak (fh, 0);
1440 dREQ;
1441
1442 req->type = ix;
1443 req->sv1 = newSVsv (fh);
1444 req->int1 = fd;
1445
1446 REQ_SEND;
1447}
1448
1449void
1450aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1451 PPCODE:
1452{
1453 int fd = s_fileno_croak (fh, 0);
1454 dREQ;
1455
1456 req->type = EIO_SYNC_FILE_RANGE;
1457 req->sv1 = newSVsv (fh);
1458 req->int1 = fd;
1459 req->offs = offset;
1460 req->size = nbytes;
1461 req->int2 = flags;
1462
1463 REQ_SEND;
1464}
1465
1466void
1467aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1468 PPCODE:
1469{
1470 int fd = s_fileno_croak (fh, 0);
1471 dREQ;
1472
1473 req->type = EIO_FALLOCATE;
1474 req->sv1 = newSVsv (fh);
1475 req->int1 = fd;
1476 req->int2 = mode;
1477 req->offs = offset;
1478 req->size = len;
1479
1480 REQ_SEND;
1481}
1482
1483void
1484aio_close (SV *fh, SV *callback = &PL_sv_undef)
1485 PPCODE:
1486{
1487 int fd = s_fileno_croak (fh, 0);
1488 dREQ;
1489#if 0
1490 /* partially duplicate logic in s_fileno */
1491 SvGETMAGIC (fh);
1492
1493 if (SvROK (fh))
688 { 1494 {
689 struct sendfilevec vec; 1495 fh = SvRV (fh);
690 size_t sbytes; 1496 SvGETMAGIC (fh);
691
692 vec.sfv_fd = ifd;
693 vec.sfv_flag = 0;
694 vec.sfv_off = offset;
695 vec.sfv_len = count;
696
697 res = sendfilev (ofd, &vec, 1, &sbytes);
698
699 if (res < 0 && sbytes)
700 res = sbytes;
701 } 1497 }
702 1498
703# endif 1499 if (SvTYPE (fh) == SVt_PVGV)
704#else
705 res = -1;
706 errno = ENOSYS;
707#endif
708
709 if (res < 0
710 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
711#if __solaris
712 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
713#endif
714 )
715 )
716 {
717 /* emulate sendfile. this is a major pain in the ass */
718 dBUF;
719
720 res = 0;
721
722 while (count)
723 {
724 ssize_t cnt;
725
726 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
727
728 if (cnt <= 0)
729 {
730 if (cnt && !res) res = -1;
731 break;
732 }
733
734 cnt = write (ofd, aio_buf, cnt);
735
736 if (cnt <= 0)
737 {
738 if (cnt && !res) res = -1;
739 break;
740 }
741
742 offset += cnt;
743 res += cnt;
744 count -= cnt;
745 }
746
747 fBUF;
748 }
749
750 return res;
751}
752
753/* read a full directory */
754static int scandir_ (const char *path, void **namesp)
755{
756 DIR *dirp;
757 union
758 {
759 struct dirent d;
760 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
761 } *u;
762 struct dirent *entp;
763 char *name, *names;
764 int memlen = 4096;
765 int memofs = 0;
766 int res = 0;
767 int errorno;
768
769 dirp = opendir (path);
770 if (!dirp)
771 return -1;
772
773 u = malloc (sizeof (*u));
774 names = malloc (memlen);
775
776 if (u && names)
777 for (;;)
778 {
779 errno = 0;
780 readdir_r (dirp, &u->d, &entp);
781
782 if (!entp)
783 break;
784
785 name = entp->d_name;
786
787 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
788 { 1500 {
789 int len = strlen (name) + 1; 1501 /* perl filehandle */
1502 PerlIOUnix_refcnt_inc (fd);
1503 do_close ((GV *)fh, 1);
790 1504
791 res++; 1505 req->type = EIO_CLOSE;
792 1506 req->int1 = fd;
793 while (memofs + len > memlen) 1507 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
794 {
795 memlen *= 2;
796 names = realloc (names, memlen);
797 if (!names)
798 break;
799 }
800
801 memcpy (names + memofs, name, len);
802 memofs += len;
803 } 1508 }
804 }
805
806 errorno = errno;
807 free (u);
808 closedir (dirp);
809
810 if (errorno)
811 {
812 free (names);
813 errno = errorno;
814 res = -1;
815 }
816
817 *namesp = (void *)names;
818 return res;
819}
820
821/*****************************************************************************/
822
823static void *aio_proc (void *thr_arg)
824{
825 aio_req req;
826 int type;
827
828 do
829 {
830 pthread_mutex_lock (&reqlock);
831
832 for (;;)
833 { 1509 else
834 req = reqs; 1510#endif
835
836 if (reqs)
837 {
838 reqs = reqs->next;
839 if (!reqs) reqe = 0;
840 }
841
842 if (req)
843 break;
844
845 pthread_cond_wait (&reqwait, &reqlock);
846 }
847
848 pthread_mutex_unlock (&reqlock);
849
850 errno = 0; /* strictly unnecessary */
851 type = req->type; /* remember type for QUIT check */
852
853 if (!(req->flags & FLAG_CANCELLED))
854 switch (type)
855 { 1511 {
856 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 1512 /* fd number */
857 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 1513 req->type = EIO_DUP2;
858 1514 req->int1 = close_fd;
859 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 1515 req->sv2 = newSVsv (fh);
860 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; 1516 req->int2 = fd;
861
862 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
863 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
864 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
865
866 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
867 case REQ_CLOSE: req->result = close (req->fd); break;
868 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
869 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
870 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
871 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
872 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
873
874 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
875 case REQ_FSYNC: req->result = fsync (req->fd); break;
876 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
877
878 case REQ_SLEEP:
879 {
880 struct timeval tv;
881
882 tv.tv_sec = req->fd;
883 tv.tv_usec = req->fd2;
884
885 req->result = select (0, 0, 0, 0, &tv);
886 }
887
888 case REQ_GROUP:
889 case REQ_NOP:
890 case REQ_QUIT:
891 break;
892
893 default:
894 req->result = ENOSYS;
895 break;
896 } 1517 }
897 1518
898 req->errorno = errno; 1519 REQ_SEND;
899
900 pthread_mutex_lock (&reslock);
901
902 req->next = 0;
903
904 if (rese)
905 {
906 rese->next = req;
907 rese = req;
908 }
909 else
910 {
911 rese = ress = req;
912
913 /* write a dummy byte to the pipe so fh becomes ready */
914 write (respipe [1], &respipe, 1);
915 }
916
917 pthread_mutex_unlock (&reslock);
918 }
919 while (type != REQ_QUIT);
920
921 return 0;
922} 1520}
923 1521
924/*****************************************************************************/
925
926static void atfork_prepare (void)
927{
928 pthread_mutex_lock (&reqlock);
929 pthread_mutex_lock (&reslock);
930#if !HAVE_PREADWRITE
931 pthread_mutex_lock (&preadwritelock);
932#endif
933#if !HAVE_READDIR_R
934 pthread_mutex_lock (&readdirlock);
935#endif
936}
937
938static void atfork_parent (void)
939{
940#if !HAVE_READDIR_R
941 pthread_mutex_unlock (&readdirlock);
942#endif
943#if !HAVE_PREADWRITE
944 pthread_mutex_unlock (&preadwritelock);
945#endif
946 pthread_mutex_unlock (&reslock);
947 pthread_mutex_unlock (&reqlock);
948}
949
950static void atfork_child (void)
951{
952 aio_req prv;
953
954 started = 0;
955
956 while (reqs)
957 {
958 prv = reqs;
959 reqs = prv->next;
960 req_free (prv);
961 }
962
963 reqs = reqe = 0;
964
965 while (ress)
966 {
967 prv = ress;
968 ress = prv->next;
969 req_free (prv);
970 }
971
972 ress = rese = 0;
973
974 close (respipe [0]);
975 close (respipe [1]);
976 create_pipe ();
977
978 atfork_parent ();
979}
980
981#define dREQ \
982 aio_req req; \
983 int req_pri = next_pri; \
984 next_pri = DEFAULT_PRI + PRI_BIAS; \
985 \
986 if (SvOK (callback) && !SvROK (callback)) \
987 croak ("callback must be undef or of reference type"); \
988 \
989 Newz (0, req, 1, aio_cb); \
990 if (!req) \
991 croak ("out of memory during aio_req allocation"); \
992 \
993 req->callback = newSVsv (callback); \
994 req->pri = req_pri
995
996#define REQ_SEND \
997 req_send (req); \
998 \
999 if (GIMME_V != G_VOID) \
1000 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1001
1002MODULE = IO::AIO PACKAGE = IO::AIO
1003
1004PROTOTYPES: ENABLE
1005
1006BOOT:
1007{
1008 HV *stash = gv_stashpv ("IO::AIO", 1);
1009 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1010 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1011 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1012
1013 create_pipe ();
1014 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1015}
1016
1017void 1522void
1018min_parallel (nthreads) 1523aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1019 int nthreads
1020 PROTOTYPE: $
1021
1022void
1023max_parallel (nthreads)
1024 int nthreads
1025 PROTOTYPE: $
1026
1027int
1028max_outstanding (nreqs)
1029 int nreqs
1030 PROTOTYPE: $
1031 CODE: 1524 PPCODE:
1032 RETVAL = max_outstanding;
1033 max_outstanding = nreqs;
1034
1035void
1036aio_open (pathname,flags,mode,callback=&PL_sv_undef)
1037 SV * pathname
1038 int flags
1039 int mode
1040 SV * callback
1041 PROTOTYPE: $$$;$
1042 PPCODE:
1043{ 1525{
1526 int fd = s_fileno_croak (fh, 0);
1044 dREQ; 1527 dREQ;
1045 1528
1046 req->type = REQ_OPEN; 1529 req->type = EIO_SEEK;
1047 req->data = newSVsv (pathname); 1530 req->sv1 = newSVsv (fh);
1048 req->dataptr = SvPVbyte_nolen (req->data); 1531 req->int1 = fd;
1049 req->fd = flags; 1532 req->offs = SvVAL64 (offset);
1050 req->mode = mode; 1533 req->int2 = whence;
1051 1534
1052 REQ_SEND; 1535 REQ_SEND;
1053} 1536}
1054 1537
1055void 1538void
1056aio_close (fh,callback=&PL_sv_undef) 1539aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1057 SV * fh
1058 SV * callback
1059 PROTOTYPE: $;$
1060 ALIAS: 1540 ALIAS:
1061 aio_close = REQ_CLOSE
1062 aio_fsync = REQ_FSYNC
1063 aio_fdatasync = REQ_FDATASYNC
1064 PPCODE:
1065{
1066 dREQ;
1067
1068 req->type = ix;
1069 req->fh = newSVsv (fh);
1070 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1071
1072 REQ_SEND (req);
1073}
1074
1075void
1076aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1077 SV * fh
1078 UV offset
1079 UV length
1080 SV * data
1081 UV dataoffset
1082 SV * callback
1083 ALIAS:
1084 aio_read = REQ_READ 1541 aio_read = EIO_READ
1085 aio_write = REQ_WRITE 1542 aio_write = EIO_WRITE
1086 PROTOTYPE: $$$$$;$
1087 PPCODE: 1543 PPCODE:
1088{ 1544{
1089 aio_req req;
1090 STRLEN svlen; 1545 STRLEN svlen;
1546 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1091 char *svptr = SvPVbyte (data, svlen); 1547 char *svptr = SvPVbyte (data, svlen);
1092 1548 UV len = SvUV (length);
1093 SvUPGRADE (data, SVt_PV);
1094 SvPOK_on (data);
1095 1549
1096 if (dataoffset < 0) 1550 if (dataoffset < 0)
1097 dataoffset += svlen; 1551 dataoffset += svlen;
1098 1552
1099 if (dataoffset < 0 || dataoffset > svlen) 1553 if (dataoffset < 0 || dataoffset > svlen)
1100 croak ("data offset outside of string"); 1554 croak ("dataoffset outside of data scalar");
1101 1555
1102 if (ix == REQ_WRITE) 1556 if (ix == EIO_WRITE)
1103 { 1557 {
1104 /* write: check length and adjust. */ 1558 /* write: check length and adjust. */
1105 if (length < 0 || length + dataoffset > svlen) 1559 if (!SvOK (length) || len + dataoffset > svlen)
1106 length = svlen - dataoffset; 1560 len = svlen - dataoffset;
1107 } 1561 }
1108 else 1562 else
1109 { 1563 {
1110 /* read: grow scalar as necessary */ 1564 /* read: check type and grow scalar as necessary */
1565 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1111 svptr = SvGROW (data, length + dataoffset); 1566 svptr = sv_grow (data, len + dataoffset + 1);
1567 else if (SvCUR (data) < len + dataoffset)
1568 croak ("length + dataoffset outside of scalar, and cannot grow");
1112 } 1569 }
1113
1114 if (length < 0)
1115 croak ("length must not be negative");
1116 1570
1117 { 1571 {
1118 dREQ; 1572 dREQ;
1119 1573
1120 req->type = ix; 1574 req->type = ix;
1121 req->fh = newSVsv (fh); 1575 req->sv1 = newSVsv (fh);
1122 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1576 req->int1 = fd;
1123 : IoOFP (sv_2io (fh))); 1577 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1124 req->offset = offset; 1578 req->size = len;
1125 req->length = length;
1126 req->data = SvREFCNT_inc (data); 1579 req->sv2 = SvREFCNT_inc (data);
1127 req->dataptr = (char *)svptr + dataoffset; 1580 req->ptr2 = (char *)svptr + dataoffset;
1581 req->stroffset = dataoffset;
1128 1582
1129 if (!SvREADONLY (data)) 1583 if (!SvREADONLY (data))
1130 { 1584 {
1131 SvREADONLY_on (data); 1585 SvREADONLY_on (data);
1132 req->data2ptr = (void *)data; 1586 req->flags |= FLAG_SV2_RO_OFF;
1133 } 1587 }
1134 1588
1135 REQ_SEND; 1589 REQ_SEND;
1136 } 1590 }
1137} 1591}
1138 1592
1139void 1593void
1140aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1594aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1141 SV * out_fh 1595 ALIAS:
1142 SV * in_fh 1596 aio_ioctl = EIO_IOCTL
1143 UV in_offset 1597 aio_fcntl = EIO_FCNTL
1144 UV length
1145 SV * callback
1146 PROTOTYPE: $$$$;$
1147 PPCODE: 1598 PPCODE:
1148{ 1599{
1149 dREQ; 1600 int fd = s_fileno_croak (fh, 0);
1601 char *svptr;
1150 1602
1151 req->type = REQ_SENDFILE; 1603 if (SvPOK (arg) || !SvNIOK (arg))
1152 req->fh = newSVsv (out_fh);
1153 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1154 req->fh2 = newSVsv (in_fh);
1155 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1156 req->offset = in_offset;
1157 req->length = length;
1158
1159 REQ_SEND;
1160}
1161
1162void
1163aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1164 SV * fh
1165 UV offset
1166 IV length
1167 SV * callback
1168 PROTOTYPE: $$$;$
1169 PPCODE:
1170{
1171 dREQ;
1172
1173 req->type = REQ_READAHEAD;
1174 req->fh = newSVsv (fh);
1175 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1176 req->offset = offset;
1177 req->length = length;
1178
1179 REQ_SEND;
1180}
1181
1182void
1183aio_stat (fh_or_path,callback=&PL_sv_undef)
1184 SV * fh_or_path
1185 SV * callback
1186 ALIAS:
1187 aio_stat = REQ_STAT
1188 aio_lstat = REQ_LSTAT
1189 PPCODE:
1190{
1191 dREQ;
1192
1193 New (0, req->statdata, 1, Stat_t);
1194 if (!req->statdata)
1195 { 1604 {
1196 req_free (req); 1605 STRLEN svlen;
1197 croak ("out of memory during aio_req->statdata allocation"); 1606 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1198 } 1607#ifdef IOCPARM_LEN
1608 STRLEN need = IOCPARM_LEN (request);
1609#else
1610 STRLEN need = 256;
1611#endif
1199 1612
1200 if (SvPOK (fh_or_path)) 1613 if (svlen < need)
1201 { 1614 svptr = SvGROW (arg, need);
1202 req->type = ix;
1203 req->data = newSVsv (fh_or_path);
1204 req->dataptr = SvPVbyte_nolen (req->data);
1205 } 1615 }
1206 else 1616 else
1617 svptr = (char *)SvIV (arg);
1618
1207 { 1619 {
1620 dREQ;
1621
1208 req->type = REQ_FSTAT; 1622 req->type = ix;
1209 req->fh = newSVsv (fh_or_path); 1623 req->sv1 = newSVsv (fh);
1210 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1624 req->int1 = fd;
1625 req->int2 = (long)request;
1626 req->sv2 = SvREFCNT_inc (arg);
1627 req->ptr2 = svptr;
1628
1629 REQ_SEND;
1211 } 1630 }
1631}
1632
1633void
1634aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1635 ALIAS:
1636 aio_readlink = EIO_READLINK
1637 aio_realpath = EIO_REALPATH
1638 PPCODE:
1639{
1640 dREQ;
1641
1642 req->type = ix;
1643 req_set_path1 (req, pathname);
1212 1644
1213 REQ_SEND; 1645 REQ_SEND;
1214} 1646}
1215 1647
1216void 1648void
1217aio_unlink (pathname,callback=&PL_sv_undef) 1649aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1218 SV * pathname 1650 PPCODE:
1219 SV * callback 1651{
1652 int ifd = s_fileno_croak (in_fh , 0);
1653 int ofd = s_fileno_croak (out_fh, 1);
1654 dREQ;
1655
1656 req->type = EIO_SENDFILE;
1657 req->sv1 = newSVsv (out_fh);
1658 req->int1 = ofd;
1659 req->sv2 = newSVsv (in_fh);
1660 req->int2 = ifd;
1661 req->offs = in_offset;
1662 req->size = length;
1663
1664 REQ_SEND;
1665}
1666
1667void
1668aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1669 PPCODE:
1670{
1671 int fd = s_fileno_croak (fh, 0);
1672 dREQ;
1673
1674 req->type = EIO_READAHEAD;
1675 req->sv1 = newSVsv (fh);
1676 req->int1 = fd;
1677 req->offs = offset;
1678 req->size = length;
1679
1680 REQ_SEND;
1681}
1682
1683void
1684aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1220 ALIAS: 1685 ALIAS:
1686 aio_stat = EIO_STAT
1687 aio_lstat = EIO_LSTAT
1688 aio_statvfs = EIO_STATVFS
1689 PPCODE:
1690{
1691 dREQ;
1692
1693 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1694
1695 REQ_SEND;
1696}
1697
1698void
1699st_xtime ()
1700 ALIAS:
1701 st_atime = 0x01
1702 st_mtime = 0x02
1703 st_ctime = 0x04
1704 st_btime = 0x08
1705 st_xtime = 0x0f
1706 PPCODE:
1707 EXTEND (SP, 4);
1708 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1709 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1710 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1711 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1712
1713void
1714st_xtimensec ()
1715 ALIAS:
1716 st_atimensec = 0x01
1717 st_mtimensec = 0x02
1718 st_ctimensec = 0x04
1719 st_btimensec = 0x08
1720 st_xtimensec = 0x0f
1721 st_btimesec = 0x10
1722 st_gen = 0x20
1723 PPCODE:
1724 EXTEND (SP, 4);
1725 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1726 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1727 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1728 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1729 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1730 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1731
1732UV
1733major (UV dev)
1734 ALIAS:
1735 minor = 1
1736 CODE:
1737 RETVAL = ix ? minor (dev) : major (dev);
1738 OUTPUT:
1739 RETVAL
1740
1741UV
1742makedev (UV maj, UV min)
1743 CODE:
1744 RETVAL = makedev (maj, min);
1745 OUTPUT:
1746 RETVAL
1747
1748void
1749aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1750 PPCODE:
1751{
1752 dREQ;
1753
1754 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1755 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1756 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1757
1758 REQ_SEND;
1759}
1760
1761void
1762aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1763 PPCODE:
1764{
1765 dREQ;
1766
1767 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1768 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1769
1770 REQ_SEND;
1771}
1772
1773void
1774aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1775 PPCODE:
1776{
1777 dREQ;
1778
1779 req->int2 = mode;
1780 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1781
1782 REQ_SEND;
1783}
1784
1785void
1786aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1787 PPCODE:
1788{
1789 dREQ;
1790
1791 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1792 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1793 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1794
1795 REQ_SEND;
1796}
1797
1798void
1799aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1800 PPCODE:
1801{
1802 dREQ;
1803
1804 req->type = EIO_READDIR;
1805 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1806
1807 if (flags & EIO_READDIR_DENTS)
1808 req->int1 |= EIO_READDIR_CUSTOM2;
1809
1810 req_set_path1 (req, pathname);
1811
1812 REQ_SEND;
1813}
1814
1815void
1816aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1817 PPCODE:
1818{
1819 dREQ;
1820
1821 req->type = EIO_MKDIR;
1822 req->int2 = mode;
1823 req_set_path1 (req, pathname);
1824
1825 REQ_SEND;
1826}
1827
1828void
1829aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1830 ALIAS:
1221 aio_unlink = REQ_UNLINK 1831 aio_unlink = EIO_UNLINK
1222 aio_rmdir = REQ_RMDIR 1832 aio_rmdir = EIO_RMDIR
1223 aio_readdir = REQ_READDIR 1833 aio_readdir = EIO_READDIR
1224 PPCODE: 1834 PPCODE:
1225{ 1835{
1226 dREQ; 1836 dREQ;
1227 1837
1228 req->type = ix; 1838 req->type = ix;
1229 req->data = newSVsv (pathname); 1839 req_set_path1 (req, pathname);
1230 req->dataptr = SvPVbyte_nolen (req->data); 1840
1231
1232 REQ_SEND; 1841 REQ_SEND;
1233} 1842}
1234 1843
1235void 1844void
1236aio_link (oldpath,newpath,callback=&PL_sv_undef) 1845aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1237 SV * oldpath
1238 SV * newpath
1239 SV * callback
1240 ALIAS: 1846 ALIAS:
1241 aio_link = REQ_LINK 1847 aio_link = EIO_LINK
1242 aio_symlink = REQ_SYMLINK 1848 aio_symlink = EIO_SYMLINK
1243 aio_rename = REQ_RENAME 1849 aio_rename = EIO_RENAME
1244 PPCODE: 1850 PPCODE:
1245{ 1851{
1852 eio_wd wd2 = 0;
1246 dREQ; 1853 dREQ;
1247 1854
1248 req->type = ix; 1855 req->type = ix;
1249 req->fh = newSVsv (oldpath); 1856 req_set_path1 (req, oldpath);
1250 req->data2ptr = SvPVbyte_nolen (req->fh); 1857 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1251 req->data = newSVsv (newpath); 1858 req->int3 = (long)wd2;
1252 req->dataptr = SvPVbyte_nolen (req->data);
1253 1859
1254 REQ_SEND; 1860 REQ_SEND;
1255} 1861}
1256 1862
1257void 1863void
1258aio_sleep (delay,callback=&PL_sv_undef) 1864aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1259 double delay
1260 SV * callback
1261 PPCODE: 1865 PPCODE:
1262{ 1866{
1867 eio_wd wd2 = 0;
1263 dREQ; 1868 dREQ;
1264 1869
1265 req->type = REQ_SLEEP; 1870 req->type = EIO_RENAME;
1266 req->fd = delay < 0. ? 0 : delay; 1871 req_set_path1 (req, oldpath);
1267 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1872 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1268 1873 req->int2 = flags;
1874 req->int3 = (long)wd2;
1875
1269 REQ_SEND; 1876 REQ_SEND;
1270} 1877}
1271 1878
1272void 1879void
1273aio_group (callback=&PL_sv_undef) 1880aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1274 SV * callback 1881 PPCODE:
1275 PROTOTYPE: ;$ 1882{
1883 dREQ;
1884
1885 req->type = EIO_MKNOD;
1886 req->int2 = (mode_t)mode;
1887 req->offs = dev;
1888 req_set_path1 (req, pathname);
1889
1890 REQ_SEND;
1891}
1892
1893void
1894aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1895 ALIAS:
1896 aio_mtouch = EIO_MTOUCH
1897 aio_msync = EIO_MSYNC
1276 PPCODE: 1898 PPCODE:
1277{ 1899{
1900 STRLEN svlen;
1901 char *svptr = SvPVbyte (data, svlen);
1902 UV len = SvUV (length);
1903
1904 if (flags < 0)
1905 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1906
1907 if (offset < 0)
1908 offset += svlen;
1909
1910 if (offset < 0 || offset > svlen)
1911 croak ("offset outside of scalar");
1912
1913 if (!SvOK (length) || len + offset > svlen)
1914 len = svlen - offset;
1915
1916 {
1917 dREQ;
1918
1919 req->type = ix;
1920 req->sv2 = SvREFCNT_inc (data);
1921 req->ptr2 = (char *)svptr + offset;
1922 req->size = len;
1923 req->int1 = flags;
1924
1925 REQ_SEND;
1926 }
1927}
1928
1929void
1930aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1931 PPCODE:
1932{
1933 STRLEN svlen;
1934 char *svptr = SvPVbyte (data, svlen);
1935 UV len = SvUV (length);
1936
1937 if (offset < 0)
1938 offset += svlen;
1939
1940 if (offset < 0 || offset > svlen)
1941 croak ("offset outside of scalar");
1942
1943 if (!SvOK (length) || len + offset > svlen)
1944 len = svlen - offset;
1945
1946 {
1947 dREQ;
1948
1949 req->type = EIO_MLOCK;
1950 req->sv2 = SvREFCNT_inc (data);
1951 req->ptr2 = (char *)svptr + offset;
1952 req->size = len;
1953
1954 REQ_SEND;
1955 }
1956}
1957
1958void
1959aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1960 PPCODE:
1961{
1962 dREQ;
1963
1964 req->type = EIO_MLOCKALL;
1965 req->int1 = flags;
1966
1967 REQ_SEND;
1968}
1969
1970void
1971aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1972 PPCODE:
1973{
1974 int fd = s_fileno_croak (fh, 0);
1278 dREQ; 1975 dREQ;
1279 1976
1280 req->type = REQ_GROUP; 1977 req->type = EIO_CUSTOM;
1281 req_send (req); 1978 req->sv1 = newSVsv (fh);
1979 req->int1 = fd;
1282 1980
1283 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1981 req->feed = fiemap;
1284} 1982#if HAVE_FIEMAP
1983 /* keep our fingers crossed that the next two types are 64 bit */
1984 req->offs = start;
1985 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1986 req->int2 = flags;
1987 req->int3 = SvOK (count) ? SvIV (count) : -1;
1988#endif
1285 1989
1990 REQ_SEND;
1991}
1992
1286void 1993void
1287aio_nop (callback=&PL_sv_undef) 1994aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1288 SV * callback 1995 PPCODE:
1996{
1997 char *svptr = 0;
1998
1999 sv_clear_foreign (data);
2000
2001 if (length) /* known length, directly read into scalar */
2002 {
2003 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2004 svptr = sv_grow (data, length + 1);
2005 else if (SvCUR (data) < length)
2006 croak ("length outside of scalar, and cannot grow");
2007 else
2008 svptr = SvPVbyte_nolen (data);
2009 }
2010
2011 {
2012 dREQ;
2013
2014 req->type = EIO_SLURP;
2015 req_set_path1 (req, pathname);
2016 req->offs = offset;
2017 req->size = length;
2018 req->sv2 = SvREFCNT_inc (data);
2019 req->ptr2 = svptr;
2020
2021 if (!SvREADONLY (data))
2022 {
2023 SvREADONLY_on (data);
2024 req->flags |= FLAG_SV2_RO_OFF;
2025 }
2026
2027 REQ_SEND;
2028 }
2029}
2030
2031void
2032aio_busy (double delay, SV *callback = &PL_sv_undef)
1289 PPCODE: 2033 PPCODE:
1290{ 2034{
1291 dREQ; 2035 dREQ;
1292 2036
1293 req->type = REQ_NOP; 2037 req->type = EIO_BUSY;
2038 req->nv1 = delay < 0. ? 0. : delay;
1294 2039
1295 REQ_SEND; 2040 REQ_SEND;
1296} 2041}
1297 2042
1298#if 0
1299
1300void 2043void
1301aio_pri (int pri = DEFAULT_PRI) 2044aio_group (SV *callback = &PL_sv_undef)
2045 PPCODE:
2046{
2047 dREQ;
2048
2049 req->type = EIO_GROUP;
2050
2051 PUTBACK;
2052 req_submit (req);
2053 SPAGAIN;
2054
2055 XPUSHs (req_sv (req, aio_grp_stash));
2056}
2057
2058void
2059aio_nop (SV *callback = &PL_sv_undef)
2060 ALIAS:
2061 aio_nop = EIO_NOP
2062 aio_sync = EIO_SYNC
2063 PPCODE:
2064{
2065 dREQ;
2066
2067 req->type = ix;
2068
2069 REQ_SEND;
2070}
2071
2072int
2073aioreq_pri (int pri = NO_INIT)
1302 CODE: 2074 CODE:
2075 RETVAL = next_pri;
2076 if (items > 0)
2077 {
1303 if (pri < PRI_MIN) pri = PRI_MIN; 2078 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1304 if (pri > PRI_MAX) pri = PRI_MAX; 2079 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1305 next_pri = pri + PRI_BIAS; 2080 next_pri = pri;
2081 }
2082 OUTPUT:
2083 RETVAL
1306 2084
1307#endif 2085void
2086aioreq_nice (int nice = 0)
2087 CODE:
2088 nice = next_pri - nice;
2089 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
2090 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
2091 next_pri = nice;
1308 2092
1309void 2093void
1310flush () 2094flush ()
1311 PROTOTYPE:
1312 CODE: 2095 CODE:
1313 while (nreqs) 2096 while (eio_nreqs ())
1314 { 2097 {
1315 poll_wait (); 2098 poll_wait ();
1316 poll_cb (); 2099 poll_cb ();
1317 } 2100 }
1318 2101
1319void 2102int
1320poll() 2103poll ()
1321 PROTOTYPE:
1322 CODE: 2104 CODE:
1323 if (nreqs)
1324 {
1325 poll_wait (); 2105 poll_wait ();
1326 poll_cb (); 2106 RETVAL = poll_cb ();
1327 }
1328
1329int
1330poll_fileno()
1331 PROTOTYPE:
1332 CODE:
1333 RETVAL = respipe [0];
1334 OUTPUT: 2107 OUTPUT:
1335 RETVAL 2108 RETVAL
1336 2109
1337int 2110int
2111poll_fileno ()
2112 CODE:
2113 RETVAL = s_epipe_fd (&respipe);
2114 OUTPUT:
2115 RETVAL
2116
2117int
1338poll_cb(...) 2118poll_cb (...)
1339 PROTOTYPE: 2119 PROTOTYPE:
1340 CODE: 2120 CODE:
1341 RETVAL = poll_cb (); 2121 RETVAL = poll_cb ();
1342 OUTPUT: 2122 OUTPUT:
1343 RETVAL 2123 RETVAL
1344 2124
1345void 2125void
1346poll_wait() 2126poll_wait ()
1347 PROTOTYPE:
1348 CODE: 2127 CODE:
1349 if (nreqs)
1350 poll_wait (); 2128 poll_wait ();
1351 2129
1352int 2130int
1353nreqs() 2131nreqs ()
1354 PROTOTYPE:
1355 CODE: 2132 CODE:
1356 RETVAL = nreqs; 2133 RETVAL = eio_nreqs ();
1357 OUTPUT: 2134 OUTPUT:
1358 RETVAL 2135 RETVAL
1359 2136
2137int
2138nready ()
2139 CODE:
2140 RETVAL = eio_nready ();
2141 OUTPUT:
2142 RETVAL
2143
2144int
2145npending ()
2146 CODE:
2147 RETVAL = eio_npending ();
2148 OUTPUT:
2149 RETVAL
2150
2151int
2152nthreads ()
2153 CODE:
2154 RETVAL = eio_nthreads ();
2155 OUTPUT:
2156 RETVAL
2157
2158int
2159fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2160 CODE:
2161 RETVAL = posix_fadvise (fh, offset, length, advice);
2162 OUTPUT:
2163 RETVAL
2164
2165IV
2166sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2167 CODE:
2168 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2169 OUTPUT:
2170 RETVAL
2171
2172void
2173mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2174 PPCODE:
2175 sv_clear_foreign (scalar);
2176{
2177 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2178 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2179 if (addr == (void *)-1)
2180 XSRETURN_NO;
2181
2182 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2183
2184 if (!(prot & PROT_WRITE))
2185 SvREADONLY_on (scalar);
2186
2187 XSRETURN_YES;
2188}
2189
2190void
2191munmap (SV *scalar)
2192 CODE:
2193 sv_clear_foreign (scalar);
2194
2195SV *
2196mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2197 CODE:
2198{
2199 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2200 void *new;
2201
2202 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2203 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2204
2205 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2206
2207 RETVAL = &PL_sv_no;
2208
2209 if (new != (void *)-1)
2210 {
2211 RETVAL = new == (void *)mg->mg_ptr
2212 ? newSVpvn ("0 but true", 10)
2213 : &PL_sv_yes;
2214
2215 mg->mg_ptr = (char *)new;
2216 mg->mg_obj = (SV *)new_length;
2217
2218 SvPVX (scalar) = mg->mg_ptr;
2219 SvCUR_set (scalar, new_length);
2220 }
2221}
2222 OUTPUT:
2223 RETVAL
2224
2225int
2226madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2227 ALIAS:
2228 mprotect = 1
2229 CODE:
2230{
2231 STRLEN svlen;
2232 void *addr = SvPVbyte (scalar, svlen);
2233 STRLEN len = SvUV (length);
2234
2235 if (offset < 0)
2236 offset += svlen;
2237
2238 if (offset < 0 || offset > svlen)
2239 croak ("offset outside of scalar");
2240
2241 if (!SvOK (length) || len + offset > svlen)
2242 len = svlen - offset;
2243
2244 addr = (void *)(((intptr_t)addr) + offset);
2245 eio_page_align (&addr, &len);
2246
2247 switch (ix)
2248 {
2249 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2250 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2251 }
2252}
2253 OUTPUT:
2254 RETVAL
2255
2256int
2257munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2258 CODE:
2259{
2260 STRLEN svlen;
2261 void *addr = SvPVbyte (scalar, svlen);
2262 size_t len = SvUV (length);
2263
2264 if (offset < 0)
2265 offset += svlen;
2266
2267 if (offset < 0 || offset > svlen)
2268 croak ("offset outside of scalar");
2269
2270 if (!SvOK (length) || len + offset > svlen)
2271 len = svlen - offset;
2272
2273 addr = (void *)(((intptr_t)addr) + offset);
2274 eio_page_align (&addr, &len);
2275#if _POSIX_MEMLOCK_RANGE
2276 RETVAL = munlock (addr, len);
2277#else
2278 RETVAL = EIO_ENOSYS ();
2279#endif
2280}
2281 OUTPUT:
2282 RETVAL
2283
2284int
2285mlockall (int flags)
2286 PROTOTYPE: $;
2287 CODE:
2288 RETVAL = eio_mlockall_sync (flags);
2289 OUTPUT:
2290 RETVAL
2291
2292int
2293munlockall ()
2294 CODE:
2295#if _POSIX_MEMLOCK
2296 munlockall ();
2297#else
2298 RETVAL = EIO_ENOSYS ();
2299#endif
2300 OUTPUT:
2301 RETVAL
2302
2303int
2304splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2305 CODE:
2306{
2307#if HAVE_LINUX_SPLICE
2308 loff_t off_in_, off_out_;
2309 RETVAL = splice (
2310 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2311 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2312 length, flags
2313 );
2314#else
2315 RETVAL = EIO_ENOSYS ();
2316#endif
2317}
2318 OUTPUT:
2319 RETVAL
2320
2321int
2322tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2323 CODE:
2324#if HAVE_LINUX_SPLICE
2325 RETVAL = tee (rfh, wfh, length, flags);
2326#else
2327 RETVAL = EIO_ENOSYS ();
2328#endif
2329 OUTPUT:
2330 RETVAL
2331
2332int
2333pipesize (aio_rfd rfh, int new_size = -1)
2334 PROTOTYPE: $;$
2335 CODE:
2336#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2337 if (new_size >= 0)
2338 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2339 else
2340 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2341#else
2342 errno = ENOSYS;
2343 RETVAL = -1;
2344#endif
2345 OUTPUT:
2346 RETVAL
2347
2348void
2349pipe2 (int flags = 0)
2350 PROTOTYPE: ;$
2351 PPCODE:
2352{
2353 int fd[2];
2354 int res;
2355
2356 if (flags)
2357#if HAVE_PIPE2
2358 res = pipe2 (fd, flags);
2359#else
2360 res = (errno = ENOSYS, -1);
2361#endif
2362 else
2363 res = pipe (fd);
2364
2365 if (!res)
2366 {
2367 EXTEND (SP, 2);
2368 PUSHs (newmortalFH (fd[0], O_RDONLY));
2369 PUSHs (newmortalFH (fd[1], O_WRONLY));
2370 }
2371}
2372
2373void
2374eventfd (unsigned int initval = 0, int flags = 0)
2375 PPCODE:
2376{
2377 int fd;
2378#if HAVE_EVENTFD
2379 fd = eventfd (initval, flags);
2380#else
2381 fd = (errno = ENOSYS, -1);
2382#endif
2383
2384 XPUSHs (newmortalFH (fd, O_RDWR));
2385}
2386
2387void
2388timerfd_create (int clockid, int flags = 0)
2389 PPCODE:
2390{
2391 int fd;
2392#if HAVE_TIMERFD
2393 fd = timerfd_create (clockid, flags);
2394#else
2395 fd = (errno = ENOSYS, -1);
2396#endif
2397
2398 XPUSHs (newmortalFH (fd, O_RDWR));
2399}
2400
2401void
2402timerfd_settime (SV *fh, int flags, NV interval, NV value)
2403 PPCODE:
2404{
2405 int fd = s_fileno_croak (fh, 0);
2406#if HAVE_TIMERFD
2407 int res;
2408 struct itimerspec its, ots;
2409
2410 ts_set (&its.it_interval, interval);
2411 ts_set (&its.it_value , value);
2412 res = timerfd_settime (fd, flags, &its, &ots);
2413
2414 if (!res)
2415 {
2416 EXTEND (SP, 2);
2417 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2418 PUSHs (newSVnv (ts_get (&ots.it_value)));
2419 }
2420#else
2421 errno = ENOSYS;
2422#endif
2423}
2424
2425void
2426timerfd_gettime (SV *fh)
2427 PPCODE:
2428{
2429 int fd = s_fileno_croak (fh, 0);
2430#if HAVE_TIMERFD
2431 int res;
2432 struct itimerspec ots;
2433 res = timerfd_gettime (fd, &ots);
2434
2435 if (!res)
2436 {
2437 EXTEND (SP, 2);
2438 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2439 PUSHs (newSVnv (ts_get (&ots.it_value)));
2440 }
2441#else
2442 errno = ENOSYS;
2443#endif
2444}
2445
2446UV
2447get_fdlimit ()
2448 CODE:
2449#if HAVE_RLIMITS
2450 struct rlimit rl;
2451 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2452 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2453#endif
2454 XSRETURN_UNDEF;
2455 OUTPUT:
2456 RETVAL
2457
2458void
2459min_fdlimit (UV limit = 0x7fffffffU)
2460 CODE:
2461{
2462#if HAVE_RLIMITS
2463 struct rlimit rl;
2464 rlim_t orig_rlim_max;
2465 UV bit;
2466
2467 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2468 goto fail;
2469
2470 if (rl.rlim_cur == RLIM_INFINITY)
2471 XSRETURN_YES;
2472
2473 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2474
2475 if (rl.rlim_cur < limit)
2476 {
2477 rl.rlim_cur = limit;
2478
2479 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2480 rl.rlim_max = rl.rlim_cur;
2481 }
2482
2483 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2484 XSRETURN_YES;
2485
2486 if (errno == EPERM)
2487 {
2488 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2489 /* our limit overflows a system-wide limit */
2490 /* try an adaptive algorithm, but do not lower the hardlimit */
2491 rl.rlim_max = 0;
2492 for (bit = 0x40000000U; bit; bit >>= 1)
2493 {
2494 rl.rlim_max |= bit;
2495 rl.rlim_cur = rl.rlim_max;
2496
2497 /* nevr decrease the hard limit */
2498 if (rl.rlim_max < orig_rlim_max)
2499 break;
2500
2501 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2502 rl.rlim_max &= ~bit; /* too high, remove bit again */
2503 }
2504
2505 /* now, raise the soft limit to the max permitted */
2506 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2507 {
2508 rl.rlim_cur = rl.rlim_max;
2509 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2510 errno = EPERM;
2511 }
2512 }
2513#endif
2514 fail:
2515 XSRETURN_UNDEF;
2516}
2517
2518void _on_next_submit (SV *cb)
2519 CODE:
2520 SvREFCNT_dec (on_next_submit);
2521 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2522
1360PROTOTYPES: DISABLE 2523PROTOTYPES: DISABLE
1361 2524
2525MODULE = IO::AIO PACKAGE = IO::AIO::WD
2526
2527BOOT:
2528{
2529 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2530 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2531}
2532
2533void
2534DESTROY (SV *self)
2535 CODE:
2536{
2537 aio_wd wd = SvAIO_WD (self);
2538#if HAVE_AT
2539 {
2540 SV *callback = &PL_sv_undef;
2541 dREQ; /* clobbers next_pri :/ */
2542 next_pri = req->pri; /* restore next_pri */
2543 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2544 req->type = EIO_WD_CLOSE;
2545 req->wd = wd;
2546 REQ_SEND;
2547 }
2548#else
2549 eio_wd_close_sync (wd);
2550#endif
2551}
2552
1362MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2553MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1363 2554
1364void 2555void
1365cancel (aio_req_ornot req) 2556cancel (aio_req_ornot req)
1366 PROTOTYPE:
1367 CODE: 2557 CODE:
1368 req_cancel (req); 2558 eio_cancel (req);
1369 2559
1370void 2560void
1371cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2561cb (aio_req_ornot req, SV *callback = NO_INIT)
1372 CODE: 2562 PPCODE:
2563{
2564 if (GIMME_V != G_VOID)
2565 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2566
2567 if (items > 1)
2568 {
2569 SV *cb_cv = get_cb (callback);
2570
1373 SvREFCNT_dec (req->callback); 2571 SvREFCNT_dec (req->callback);
1374 req->callback = newSVsv (callback); 2572 req->callback = SvREFCNT_inc (cb_cv);
2573 }
2574}
1375 2575
1376MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2576MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1377 2577
1378void 2578void
1379add (aio_req grp, ...) 2579add (aio_req grp, ...)
1380 PPCODE: 2580 PPCODE:
1381{ 2581{
1382 int i; 2582 int i;
1383 aio_req req;
1384 2583
1385 if (grp->fd == 2) 2584 if (grp->int1 == 2)
1386 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2585 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1387 2586
1388 for (i = 1; i < items; ++i ) 2587 for (i = 1; i < items; ++i )
1389 { 2588 {
2589 aio_req req;
2590
1390 if (GIMME_V != G_VOID) 2591 if (GIMME_V != G_VOID)
1391 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2592 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1392 2593
1393 req = SvAIO_REQ (ST (i)); 2594 req = SvAIO_REQ (ST (i));
1394 2595
1395 if (req) 2596 if (req)
1396 { 2597 eio_grp_add (grp, req);
1397 ++grp->length;
1398 req->grp = grp;
1399
1400 req->grp_prev = 0;
1401 req->grp_next = grp->grp_first;
1402
1403 if (grp->grp_first)
1404 grp->grp_first->grp_prev = req;
1405
1406 grp->grp_first = req;
1407 }
1408 } 2598 }
1409} 2599}
2600
2601void
2602cancel_subs (aio_req_ornot req)
2603 CODE:
2604 req_cancel_subs (req);
1410 2605
1411void 2606void
1412result (aio_req grp, ...) 2607result (aio_req grp, ...)
1413 CODE: 2608 CODE:
1414{ 2609{
1415 int i; 2610 int i;
2611 AV *av;
2612
2613 grp->errorno = errno;
2614
1416 AV *av = newAV (); 2615 av = newAV ();
2616 av_extend (av, items - 1);
1417 2617
1418 for (i = 1; i < items; ++i ) 2618 for (i = 1; i < items; ++i )
1419 av_push (av, newSVsv (ST (i))); 2619 av_push (av, newSVsv (ST (i)));
1420 2620
1421 SvREFCNT_dec (grp->data); 2621 SvREFCNT_dec (grp->sv1);
1422 grp->data = (SV *)av; 2622 grp->sv1 = (SV *)av;
1423} 2623}
1424 2624
1425void 2625void
2626errno (aio_req grp, int errorno = errno)
2627 CODE:
2628 grp->errorno = errorno;
2629
2630void
1426feed_limit (aio_req grp, int limit) 2631limit (aio_req grp, int limit)
1427 CODE: 2632 CODE:
1428 grp->fd2 = limit; 2633 eio_grp_limit (grp, limit);
1429 aio_grp_feed (grp);
1430 2634
1431void 2635void
1432feed (aio_req grp, SV *callback=&PL_sv_undef) 2636feed (aio_req grp, SV *callback = &PL_sv_undef)
1433 CODE: 2637 CODE:
1434{ 2638{
1435 SvREFCNT_dec (grp->fh2); 2639 SvREFCNT_dec (grp->sv2);
1436 grp->fh2 = newSVsv (callback); 2640 grp->sv2 = newSVsv (callback);
2641 grp->feed = aio_grp_feed;
1437 2642
1438 if (grp->fd2 <= 0) 2643 if (grp->int2 <= 0)
1439 grp->fd2 = 2; 2644 grp->int2 = 2;
1440 2645
1441 aio_grp_feed (grp); 2646 eio_grp_limit (grp, grp->int2);
1442} 2647}
1443 2648

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