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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.74 by root, Wed Oct 25 17:57:30 2006 UTC vs.
Revision 1.266 by root, Tue Aug 14 14:03:14 2018 UTC

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

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