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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.75 by root, Thu Oct 26 06:44:48 2006 UTC vs.
Revision 1.265 by root, Tue Aug 14 11:50:43 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#ifndef PTHREAD_STACK_MIN 193# define major(dev) ((dev) >> 8)
53/* care for broken platforms, e.g. windows */
54# define PTHREAD_STACK_MIN 16384
55#endif 194#endif
56 195#ifndef minor
57#if __ia64 196# define minor(dev) ((dev) & 0xff)
58# define STACKSIZE 65536
59#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
60# define STACKSIZE PTHREAD_STACK_MIN
61#else
62# define STACKSIZE 16384
63#endif 197#endif
64 198
65/* buffer size for various temporary buffers */ 199#if PAGESIZE <= 0
66#define AIO_BUFSIZE 65536 200# define PAGESIZE sysconf (_SC_PAGESIZE)
201#endif
67 202
68#define dBUF \ 203/*****************************************************************************/
69 char *aio_buf; \ 204
70 LOCK (wrklock); \ 205#if !_POSIX_MAPPED_FILES
71 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 206# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
72 UNLOCK (wrklock); \ 207# define munmap(addr,length) EIO_ENOSYS ()
73 if (!aio_buf) \ 208#endif
209
210#if !_POSIX_MEMORY_PROTECTION
211# define mprotect(addr,len,prot) EIO_ENOSYS ()
212#endif
213
214#if !MREMAP_MAYMOVE
215# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
216#endif
217
218#define FOREIGN_MAGIC PERL_MAGIC_ext
219
220static int ecb_cold
221mmap_free (pTHX_ SV *sv, MAGIC *mg)
222{
223 int old_errno = errno;
224 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
225 errno = old_errno;
226
227 mg->mg_obj = 0; /* just in case */
228
229 SvREADONLY_off (sv);
230
231 if (SvPVX (sv) != mg->mg_ptr)
232 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
233
234 SvCUR_set (sv, 0);
235 SvPVX (sv) = 0;
236 SvOK_off (sv);
237
74 return -1; 238 return 0;
239}
75 240
76enum { 241static MGVTBL mmap_vtbl = {
77 REQ_QUIT, 242 0, 0, 0, 0, mmap_free
78 REQ_OPEN, REQ_CLOSE,
79 REQ_READ, REQ_WRITE, REQ_READAHEAD,
80 REQ_SENDFILE,
81 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
82 REQ_FSYNC, REQ_FDATASYNC,
83 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
84 REQ_READDIR,
85 REQ_LINK, REQ_SYMLINK,
86 REQ_GROUP, REQ_NOP,
87 REQ_BUSY,
88}; 243};
89 244
90#define AIO_REQ_KLASS "IO::AIO::REQ" 245static int ecb_cold
91#define AIO_GRP_KLASS "IO::AIO::GRP" 246sysfree_free (pTHX_ SV *sv, MAGIC *mg)
92
93typedef struct aio_cb
94{ 247{
95 struct aio_cb *volatile next; 248 free (mg->mg_ptr);
249 mg->mg_obj = 0; /* just in case */
96 250
97 SV *data, *callback; 251 SvREADONLY_off (sv);
98 SV *fh, *fh2;
99 void *dataptr, *data2ptr;
100 Stat_t *statdata;
101 off_t offset;
102 size_t length;
103 ssize_t result;
104 252
105 STRLEN dataoffset; 253 if (SvPVX (sv) != mg->mg_ptr)
106 int type; 254 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
107 int fd, fd2;
108 int errorno;
109 mode_t mode; /* open */
110 255
111 unsigned char flags; 256 SvCUR_set (sv, 0);
112 unsigned char pri; 257 SvPVX (sv) = 0;
258 SvOK_off (sv);
113 259
114 SV *self; /* the perl counterpart of this request, if any */ 260 return 0;
115 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 261}
116} aio_cb;
117 262
118enum { 263static MGVTBL sysfree_vtbl = {
119 FLAG_CANCELLED = 0x01, 264 0, 0, 0, 0, sysfree_free
120}; 265};
121 266
122typedef aio_cb *aio_req; 267/*****************************************************************************/
123typedef aio_cb *aio_req_ornot;
124 268
125enum { 269/* helper: set scalar to foreign ptr with custom free */
126 PRI_MIN = -4, 270static void
127 PRI_MAX = 4, 271sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
128
129 DEFAULT_PRI = 0,
130 PRI_BIAS = -PRI_MIN,
131 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
132};
133
134static int next_pri = DEFAULT_PRI + PRI_BIAS;
135
136static int started, wanted;
137static volatile int nreqs;
138static int respipe [2];
139
140#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
141# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
142#else
143# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
144#endif
145
146#define LOCK(mutex) pthread_mutex_lock (&(mutex))
147#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
148
149/* worker threasd management */
150static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
151
152typedef struct worker {
153 /* locked by wrklock */
154 struct worker *prev, *next;
155
156 pthread_t tid;
157
158 /* locked by reslock, reqlock or wrklock */
159 aio_req req; /* currently processed request */
160 void *dbuf;
161 DIR *dirp;
162} worker;
163
164static worker wrk_first = { &wrk_first, &wrk_first, 0 };
165
166static void worker_clear (worker *wrk)
167{ 272{
168 if (wrk->dirp) 273 sv_force_normal (sv);
274
275 /* we store the length in mg_obj, as namlen is I32 :/ */
276 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
277 ->mg_obj = (SV *)length;
278
279 SvUPGRADE (sv, SVt_PV); /* nop... */
280
281 if (SvLEN (sv))
282 Safefree (SvPVX (sv));
283
284 SvPVX (sv) = (char *)addr;
285 SvCUR_set (sv, length);
286 SvLEN_set (sv, 0);
287 SvPOK_only (sv);
288}
289
290static void
291sv_clear_foreign (SV *sv)
292{
293 /* todo: iterate over magic and only free ours, but of course */
294 /* the perl5porters will call that (correct) behaviour buggy */
295 sv_unmagic (sv, FOREIGN_MAGIC);
296}
297
298/*****************************************************************************/
299
300/* defines all sorts of constants to 0 unless they are already defined */
301/* also provides const_iv_ and const_niv_ macros for them */
302#include "def0.h"
303
304/*****************************************************************************/
305
306static void
307fiemap (eio_req *req)
308{
309 req->result = -1;
310
311#if HAVE_FIEMAP
312 /* assume some c99 */
313 struct fiemap *fiemap = 0;
314 size_t end_offset;
315 int count = req->int3;
316
317 req->flags |= EIO_FLAG_PTR1_FREE;
318
319 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
320 /* increase in 3.5kb steps */
321 if (count < 0)
322 count = 8;
323
324 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
325 errno = ENOMEM;
326 if (!fiemap)
327 return;
328
329 req->ptr1 = fiemap;
330
331 fiemap->fm_start = req->offs;
332 fiemap->fm_length = req->size;
333 fiemap->fm_flags = req->int2;
334 fiemap->fm_extent_count = count;
335
336 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
337 return;
338
339 if (req->int3 >= 0 /* not autosizing */
340 || !fiemap->fm_mapped_extents /* no more extents */
341 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
342 goto done;
343
344 /* else we have to loop -
345 * it would be tempting (actually I tried that first) to just query the
346 * number of extents needed, but linux often feels like not returning all
347 * extents, without telling us it left any out. this complicates
348 * this quite a bit.
349 */
350
351 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
352
353 for (;;)
169 { 354 {
170 closedir (wrk->dirp); 355 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
171 wrk->dirp = 0; 356 char scratch[3072];
172 } 357 struct fiemap *incmap = (struct fiemap *)scratch;
173 358
174 if (wrk->dbuf) 359 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
175 { 360 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
176 free (wrk->dbuf); 361 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
177 wrk->dbuf = 0; 362 incmap->fm_flags = fiemap->fm_flags;
178 } 363 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
179}
180 364
181static void worker_free (worker *wrk) 365 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
182{
183 wrk->next->prev = wrk->prev;
184 wrk->prev->next = wrk->next;
185
186 free (wrk);
187}
188
189static pthread_mutex_t reslock = AIO_MUTEX_INIT;
190static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
191static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
192
193/*
194 * a somewhat faster data structure might be nice, but
195 * with 8 priorities this actually needs <20 insns
196 * per shift, the most expensive operation.
197 */
198typedef struct {
199 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
200 int size;
201} reqq;
202
203static reqq req_queue;
204static reqq res_queue;
205
206int reqq_push (reqq *q, aio_req req)
207{
208 int pri = req->pri;
209 req->next = 0;
210
211 if (q->qe[pri])
212 {
213 q->qe[pri]->next = req;
214 q->qe[pri] = req;
215 }
216 else
217 q->qe[pri] = q->qs[pri] = req;
218
219 return q->size++;
220}
221
222aio_req reqq_shift (reqq *q)
223{
224 int pri;
225
226 if (!q->size)
227 return 0; 366 return;
228 367
229 --q->size; 368 if (!incmap->fm_mapped_extents)
369 goto done;
230 370
231 for (pri = NUM_PRI; pri--; ) 371 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
232 { 372 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
233 aio_req req = q->qs[pri]; 373 errno = ENOMEM;
234
235 if (req) 374 if (!fiemap)
375 return;
376
377 req->ptr1 = fiemap;
378
379 for (count = 0; count < incmap->fm_mapped_extents; ++count)
236 { 380 {
237 if (!(q->qs[pri] = req->next)) 381 struct fiemap_extent *e = incmap->fm_extents + count;
238 q->qe[pri] = 0;
239 382
240 return req; 383 if (e->fe_logical + e->fe_length >= end_offset)
384 goto done;
385
386 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
387
388 if (e->fe_flags & FIEMAP_EXTENT_LAST)
389 goto done;
390
241 } 391 }
242 } 392 }
243 393
244 abort (); 394done:
245} 395 req->result = 0;
246 396
247static int poll_cb (); 397#else
248static void req_invoke (aio_req req); 398 errno = ENOSYS;
399#endif
400}
401
402/*****************************************************************************/
403
404enum {
405 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
406};
407
408typedef eio_req *aio_req;
409typedef eio_req *aio_req_ornot;
410typedef eio_wd aio_wd;
411
412static SV *on_next_submit;
413static int next_pri = EIO_PRI_DEFAULT;
414static int max_outstanding;
415
416static s_epipe respipe;
417
249static void req_free (aio_req req); 418static void req_destroy (aio_req req);
250static void req_cancel (aio_req req); 419static void req_cancel (aio_req req);
251 420
421static void
422want_poll (void)
423{
424 /* write a dummy byte to the pipe so fh becomes ready */
425 s_epipe_signal (&respipe);
426}
427
428static void
429done_poll (void)
430{
431 /* read any signals sent by the worker threads */
432 s_epipe_drain (&respipe);
433}
434
252/* must be called at most once */ 435/* must be called at most once */
253static SV *req_sv (aio_req req, const char *klass) 436static SV *
437req_sv (aio_req req, HV *stash)
254{ 438{
255 if (!req->self) 439 if (!req->self)
256 { 440 {
257 req->self = (SV *)newHV (); 441 req->self = (SV *)newHV ();
258 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 442 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
259 } 443 }
260 444
261 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 445 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
262} 446}
263 447
264static aio_req SvAIO_REQ (SV *sv) 448static SV *
449newSVaio_wd (aio_wd wd)
450{
451 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
452}
453
454static aio_req
455SvAIO_REQ (SV *sv)
265{ 456{
266 MAGIC *mg; 457 MAGIC *mg;
267 458
268 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 459 if (!SvROK (sv)
460 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
461 || (SvSTASH (SvRV (sv)) != aio_grp_stash
462 && SvSTASH (SvRV (sv)) != aio_req_stash
463 && !sv_derived_from (sv, "IO::AIO::REQ")))
269 croak ("object of class " AIO_REQ_KLASS " expected"); 464 croak ("object of class IO::AIO::REQ expected");
270 465
271 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 466 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
272 467
273 return mg ? (aio_req)mg->mg_ptr : 0; 468 return mg ? (aio_req)mg->mg_ptr : 0;
274} 469}
275 470
471static aio_wd
472SvAIO_WD (SV *sv)
473{
474 if (!SvROK (sv)
475 || SvTYPE (SvRV (sv)) != SVt_PVMG
476 || SvSTASH (SvRV (sv)) != aio_wd_stash)
477 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
478
479 return (aio_wd)(long)SvIVX (SvRV (sv));
480}
481
482static SV *
483newmortalFH (int fd, int flags)
484{
485 if (fd < 0)
486 return &PL_sv_undef;
487
488 GV *gv = (GV *)sv_newmortal ();
489 char sym[64];
490 int symlen;
491
492 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
493 gv_init (gv, aio_stash, sym, symlen, 0);
494
495 symlen = snprintf (
496 sym,
497 sizeof (sym),
498 "%s&=%d",
499 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
500 fd
501 );
502
503 return do_open (gv, sym, symlen, 0, 0, 0, 0)
504 ? (SV *)gv : &PL_sv_undef;
505}
506
507static void
276static void aio_grp_feed (aio_req grp) 508aio_grp_feed (aio_req grp)
277{ 509{
278 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 510 if (grp->sv2 && SvOK (grp->sv2))
279 { 511 {
280 int old_len = grp->length;
281
282 if (grp->fh2 && SvOK (grp->fh2))
283 {
284 dSP; 512 dSP;
285 513
286 ENTER; 514 ENTER;
287 SAVETMPS; 515 SAVETMPS;
288 PUSHMARK (SP); 516 PUSHMARK (SP);
289 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 517 XPUSHs (req_sv (grp, aio_grp_stash));
290 PUTBACK; 518 PUTBACK;
291 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 519 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
292 SPAGAIN; 520 SPAGAIN;
293 FREETMPS; 521 FREETMPS;
294 LEAVE; 522 LEAVE;
295 }
296
297 /* stop if no progress has been made */
298 if (old_len == grp->length)
299 {
300 SvREFCNT_dec (grp->fh2);
301 grp->fh2 = 0;
302 break;
303 }
304 } 523 }
305} 524}
306 525
307static void aio_grp_dec (aio_req grp) 526static void
527req_submit (eio_req *req)
308{ 528{
309 --grp->length; 529 eio_submit (req);
310 530
311 /* call feeder, if applicable */ 531 if (expect_false (on_next_submit))
312 aio_grp_feed (grp);
313
314 /* finish, if done */
315 if (!grp->length && grp->fd)
316 { 532 {
317 req_invoke (grp); 533 dSP;
318 req_free (grp); 534 SV *cb = sv_2mortal (on_next_submit);
535
536 on_next_submit = 0;
537
538 PUSHMARK (SP);
539 PUTBACK;
540 call_sv (cb, G_DISCARD | G_EVAL);
319 } 541 }
320} 542}
321 543
322static void poll_wait () 544static int
545req_invoke (eio_req *req)
323{ 546{
324 fd_set rfd; 547 if (req->flags & FLAG_SV2_RO_OFF)
548 SvREADONLY_off (req->sv2);
325 549
326 while (nreqs) 550 if (!EIO_CANCELLED (req) && req->callback)
327 { 551 {
328 int size;
329#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
330 LOCK (reslock);
331#endif
332 size = res_queue.size;
333#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
334 UNLOCK (reslock);
335#endif
336
337 if (size)
338 return;
339
340 FD_ZERO(&rfd);
341 FD_SET(respipe [0], &rfd);
342
343 select (respipe [0] + 1, &rfd, 0, 0, 0);
344 }
345}
346
347static void req_invoke (aio_req req)
348{
349 dSP; 552 dSP;
350 553 static SV *sv_result_cache; /* caches the result integer SV */
351 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 554 SV *sv_result;
352 {
353 errno = req->errorno;
354 555
355 ENTER; 556 ENTER;
356 SAVETMPS; 557 SAVETMPS;
357 PUSHMARK (SP); 558 PUSHMARK (SP);
358 EXTEND (SP, 1); 559 EXTEND (SP, 1);
359 560
561 /* do not recreate the result IV from scratch each time */
562 if (expect_true (sv_result_cache))
563 {
564 sv_result = sv_result_cache; sv_result_cache = 0;
565 SvIV_set (sv_result, req->result);
566 SvIOK_only (sv_result);
567 }
568 else
569 {
570 sv_result = newSViv (req->result);
571 SvREADONLY_on (sv_result);
572 }
573
360 switch (req->type) 574 switch (req->type)
361 { 575 {
576 case EIO_WD_OPEN:
577 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
578 break;
579
362 case REQ_READDIR: 580 case EIO_READDIR:
363 { 581 {
364 SV *rv = &PL_sv_undef; 582 SV *rv = &PL_sv_undef;
365 583
366 if (req->result >= 0) 584 if (req->result >= 0)
367 { 585 {
368 int i; 586 int i;
369 char *buf = req->data2ptr; 587 char *names = (char *)req->ptr2;
588 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
370 AV *av = newAV (); 589 AV *av = newAV ();
371 590
372 av_extend (av, req->result - 1); 591 av_extend (av, req->result - 1);
373 592
374 for (i = 0; i < req->result; ++i) 593 for (i = 0; i < req->result; ++i)
375 { 594 {
376 SV *sv = newSVpv (buf, 0); 595 if (req->int1 & EIO_READDIR_DENTS)
596 {
597 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
377 598
599 if (req->int1 & EIO_READDIR_CUSTOM2)
600 {
601 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
602 AV *avent = newAV ();
603
604 av_extend (avent, 2);
605
606 if (!sv_type [ent->type])
607 {
608 sv_type [ent->type] = newSViv (ent->type);
609 SvREADONLY_on (sv_type [ent->type]);
610 }
611
612 av_store (avent, 0, namesv);
613 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
614 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
615
616 av_store (av, i, newRV_noinc ((SV *)avent));
617 }
618 else
378 av_store (av, i, sv); 619 av_store (av, i, namesv);
620
621 ++ent;
622 }
623 else
624 {
625 SV *name = newSVpv (names, 0);
626 av_store (av, i, name);
379 buf += SvCUR (sv) + 1; 627 names += SvCUR (name) + 1;
628 }
380 } 629 }
381 630
382 rv = sv_2mortal (newRV_noinc ((SV *)av)); 631 rv = sv_2mortal (newRV_noinc ((SV *)av));
383 } 632 }
384 633
385 PUSHs (rv); 634 PUSHs (rv);
635
636 if (req->int1 & EIO_READDIR_CUSTOM1)
637 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
386 } 638 }
387 break; 639 break;
388 640
389 case REQ_OPEN: 641 case EIO_OPEN:
642 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
643 break;
644
645 case EIO_STATVFS:
646 case EIO_FSTATVFS:
390 { 647 {
391 /* convert fd to fh */ 648 SV *rv = &PL_sv_undef;
392 SV *fh; 649
650#ifndef _WIN32
651 if (req->result >= 0)
652 {
653 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
654 HV *hv = newHV ();
655 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
656 * chooses to make it a struct.
657 */
658 unsigned long fsid = 0;
659 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
393 660
394 PUSHs (sv_2mortal (newSViv (req->result))); 661 rv = sv_2mortal (newRV_noinc ((SV *)hv));
395 PUTBACK;
396 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
397 SPAGAIN;
398 662
399 fh = SvREFCNT_inc (POPs); 663 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
664 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
665 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
666 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
667 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
668 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
669 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
670 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
671 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
672 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
673 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
674 }
675#endif
400 676
401 PUSHMARK (SP); 677 PUSHs (rv);
402 XPUSHs (sv_2mortal (fh));
403 } 678 }
679
404 break; 680 break;
405 681
406 case REQ_GROUP: 682 case EIO_GROUP:
407 req->fd = 2; /* mark group as finished */ 683 req->int1 = 2; /* mark group as finished */
408 684
409 if (req->data) 685 if (req->sv1)
410 { 686 {
411 int i; 687 int i;
412 AV *av = (AV *)req->data; 688 AV *av = (AV *)req->sv1;
413 689
414 EXTEND (SP, AvFILL (av) + 1); 690 EXTEND (SP, AvFILL (av) + 1);
415 for (i = 0; i <= AvFILL (av); ++i) 691 for (i = 0; i <= AvFILL (av); ++i)
416 PUSHs (*av_fetch (av, i, 0)); 692 PUSHs (*av_fetch (av, i, 0));
417 } 693 }
418 break; 694 break;
419 695
420 case REQ_NOP: 696 case EIO_NOP:
421 case REQ_BUSY: 697 case EIO_BUSY:
422 break; 698 break;
423 699
700 case EIO_READLINK:
701 case EIO_REALPATH:
702 if (req->result > 0)
703 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
704 break;
705
706 case EIO_STAT:
707 case EIO_LSTAT:
708 case EIO_FSTAT:
709 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
710
711 if (!(PL_laststatval = req->result))
712 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
713 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
714
715 PUSHs (sv_result);
716 break;
717
718 case EIO_SEEK:
719 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
720 break;
721
722 case EIO_READ:
723 {
724 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
725 *SvEND (req->sv2) = 0;
726 SvPOK_only (req->sv2);
727 SvSETMAGIC (req->sv2);
728 PUSHs (sv_result);
729 }
730 break;
731
732 case EIO_SLURP:
733 {
734 if (req->result >= 0)
735 {
736 /* if length was originally not known, we steal the malloc'ed memory */
737 if (req->flags & EIO_FLAG_PTR2_FREE)
738 {
739 req->flags &= ~EIO_FLAG_PTR2_FREE;
740 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
741 }
742 else
743 {
744 SvCUR_set (req->sv2, req->result);
745 *SvEND (req->sv2) = 0;
746 SvPOK_only (req->sv2);
747 }
748
749 SvSETMAGIC (req->sv2);
750 }
751
752 PUSHs (sv_result);
753 }
754 break;
755
756 case EIO_CUSTOM:
757 if (req->feed == fiemap)
758 {
759#if HAVE_FIEMAP
760 if (!req->result)
761 {
762 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
763
764 if (fiemap->fm_extent_count)
765 {
766 AV *av = newAV ();
767 int i;
768
769 while (fiemap->fm_mapped_extents)
770 {
771 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
772 AV *ext_av = newAV ();
773
774 av_store (ext_av, 3, newSVuv (extent->fe_flags));
775 av_store (ext_av, 2, newSVval64 (extent->fe_length));
776 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
777 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
778
779 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
780 }
781
782 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
783 }
784 else
785 {
786 SvIV_set (sv_result, fiemap->fm_mapped_extents);
787 PUSHs (sv_result);
788 }
789 }
790#endif
791 }
792 else
793 PUSHs (sv_result);
794 break;
795
796 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
797 if (req->result > 0)
798 SvIV_set (sv_result, 0);
799 /* FALLTHROUGH */
800
424 default: 801 default:
425 PUSHs (sv_2mortal (newSViv (req->result))); 802 PUSHs (sv_result);
426 break; 803 break;
427 } 804 }
428 805
806 errno = req->errorno;
429 807
430 PUTBACK; 808 PUTBACK;
431 call_sv (req->callback, G_VOID | G_EVAL); 809 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
432 SPAGAIN; 810 SPAGAIN;
811
812 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
813 SvREFCNT_dec (sv_result);
814 else
815 sv_result_cache = sv_result;
433 816
434 FREETMPS; 817 FREETMPS;
435 LEAVE; 818 LEAVE;
819
820 PUTBACK;
436 } 821 }
437 822
438 if (req->grp) 823 return !!SvTRUE (ERRSV);
439 {
440 aio_req grp = req->grp;
441
442 /* unlink request */
443 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
444 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
445
446 if (grp->grp_first == req)
447 grp->grp_first = req->grp_next;
448
449 aio_grp_dec (grp);
450 }
451
452 if (SvTRUE (ERRSV))
453 {
454 req_free (req);
455 croak (0);
456 }
457} 824}
458 825
459static void req_free (aio_req req) 826static void
827req_destroy (aio_req req)
460{ 828{
461 if (req->self) 829 if (req->self)
462 { 830 {
463 sv_unmagic (req->self, PERL_MAGIC_ext); 831 sv_unmagic (req->self, PERL_MAGIC_ext);
464 SvREFCNT_dec (req->self); 832 SvREFCNT_dec (req->self);
465 } 833 }
466 834
467 SvREFCNT_dec (req->data);
468 SvREFCNT_dec (req->fh); 835 SvREFCNT_dec (req->sv1);
469 SvREFCNT_dec (req->fh2); 836 SvREFCNT_dec (req->sv2);
837 SvREFCNT_dec (req->sv3);
838 SvREFCNT_dec (req->sv4);
470 SvREFCNT_dec (req->callback); 839 SvREFCNT_dec (req->callback);
471 Safefree (req->statdata);
472 840
473 if (req->type == REQ_READDIR)
474 free (req->data2ptr);
475
476 Safefree (req); 841 free (req);
477} 842}
478 843
844static void
479static void req_cancel_subs (aio_req grp) 845req_cancel_subs (aio_req grp)
480{ 846{
481 aio_req sub;
482
483 if (grp->type != REQ_GROUP) 847 if (grp->type != EIO_GROUP)
484 return; 848 return;
485 849
486 SvREFCNT_dec (grp->fh2); 850 SvREFCNT_dec (grp->sv2);
487 grp->fh2 = 0; 851 grp->sv2 = 0;
488 852
489 for (sub = grp->grp_first; sub; sub = sub->grp_next) 853 eio_grp_cancel (grp);
490 req_cancel (sub);
491} 854}
492 855
493static void req_cancel (aio_req req) 856static void ecb_cold
857create_respipe (void)
494{ 858{
495 req->flags |= FLAG_CANCELLED; 859 if (s_epipe_renew (&respipe))
496 860 croak ("IO::AIO: unable to initialize result pipe");
497 req_cancel_subs (req);
498} 861}
499 862
500static int poll_cb () 863static void
864poll_wait (void)
501{ 865{
502 dSP; 866 while (eio_nreqs ())
503 int count = 0; 867 {
504 int do_croak = 0; 868 int size;
505 aio_req req;
506 869
870 X_LOCK (EIO_POOL->reslock);
871 size = EIO_POOL->res_queue.size;
872 X_UNLOCK (EIO_POOL->reslock);
873
874 if (size)
875 return;
876
877 etp_maybe_start_thread (EIO_POOL);
878
879 s_epipe_wait (&respipe);
880 }
881}
882
883static int
884poll_cb (void)
885{
507 for (;;) 886 for (;;)
508 { 887 {
509 LOCK (reslock); 888 int res = eio_poll ();
510 req = reqq_shift (&res_queue);
511 889
512 if (req) 890 if (res > 0)
891 croak (0);
892
893 if (!max_outstanding || max_outstanding > eio_nreqs ())
894 return res;
895
896 poll_wait ();
897 }
898}
899
900static void ecb_cold
901reinit (void)
902{
903 create_respipe ();
904
905 if (eio_init (want_poll, done_poll) < 0)
906 croak ("IO::AIO: unable to initialise eio library");
907}
908
909/*****************************************************************************/
910
911static SV *
912get_cb (SV *cb_sv)
913{
914 SvGETMAGIC (cb_sv);
915 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
916}
917
918static aio_req ecb_noinline
919dreq (SV *callback)
920{
921 SV *cb_cv;
922 aio_req req;
923 int req_pri = next_pri;
924 next_pri = EIO_PRI_DEFAULT;
925
926 cb_cv = get_cb (callback);
927
928 req = calloc (sizeof (*req), 1);
929 if (!req)
930 croak ("out of memory during eio_req allocation");
931
932 req->callback = SvREFCNT_inc (cb_cv);
933 req->pri = req_pri;
934
935 return req;
936}
937
938#define dREQ \
939 aio_req req = dreq (callback); \
940
941#define REQ_SEND \
942 PUTBACK; \
943 req_submit (req); \
944 SPAGAIN; \
945 \
946 if (GIMME_V != G_VOID) \
947 XPUSHs (req_sv (req, aio_req_stash));
948
949ecb_inline void
950req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
951{
952 if (expect_false (SvROK (path)))
953 {
954 SV *rv = SvRV (path);
955 SV *wdob;
956
957 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
513 { 958 {
514 if (!res_queue.size) 959 path = AvARRAY (rv)[1];
960 wdob = AvARRAY (rv)[0];
961
962 if (SvOK (wdob))
515 { 963 {
516 /* read any signals sent by the worker threads */ 964 *wd = SvAIO_WD (wdob);
517 char buf [32]; 965 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
518 while (read (respipe [0], buf, 32) == 32)
519 ;
520 } 966 }
967 else
968 *wd = EIO_INVALID_WD;
521 } 969 }
522 970 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
523 UNLOCK (reslock);
524
525 if (!req)
526 break;
527
528 --nreqs;
529
530 if (req->type == REQ_QUIT)
531 started--;
532 else if (req->type == REQ_GROUP && req->length)
533 { 971 {
534 req->fd = 1; /* mark request as delayed */ 972 *wd = (aio_wd)(long)SvIVX (rv);
535 continue; 973 *wdsv = SvREFCNT_inc_NN (rv);
974 *ptr = ".";
975 return; /* path set to "." */
536 } 976 }
537 else 977 else
538 { 978 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
539 if (req->type == REQ_READ)
540 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
541
542 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
543 SvREADONLY_off (req->data);
544
545 if (req->statdata)
546 {
547 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
548 PL_laststatval = req->result;
549 PL_statcache = *(req->statdata);
550 }
551
552 req_invoke (req);
553
554 count++;
555 }
556
557 req_free (req);
558 } 979 }
559 980
560 return count; 981 *pathsv = newSVsv (path);
982 *ptr = SvPVbyte_nolen (*pathsv);
561} 983}
562 984
563static void *aio_proc(void *arg); 985static void ecb_noinline
564 986req_set_path1 (aio_req req, SV *path)
565static void start_thread (void)
566{ 987{
567 sigset_t fullsigset, oldsigset; 988 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
568 pthread_attr_t attr; 989}
569 990
570 worker *wrk = calloc (1, sizeof (worker)); 991static void ecb_noinline
992req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
993{
994 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
571 995
572 if (!wrk) 996 switch (SvTYPE (rv))
573 croak ("unable to allocate worker thread data");
574
575 pthread_attr_init (&attr);
576 pthread_attr_setstacksize (&attr, STACKSIZE);
577 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
578
579 sigfillset (&fullsigset);
580
581 LOCK (wrklock);
582 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
583
584 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
585 { 997 {
586 wrk->prev = &wrk_first; 998 case SVt_PVIO:
587 wrk->next = wrk_first.next; 999 case SVt_PVLV:
588 wrk_first.next->prev = wrk; 1000 case SVt_PVGV:
589 wrk_first.next = wrk; 1001 req->type = type_fh;
590 started++; 1002 req->sv1 = newSVsv (fh_or_path);
1003 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1004 break;
1005
1006 default:
1007 req->type = type_path;
1008 req_set_path1 (req, fh_or_path);
1009 break;
591 } 1010 }
592 else
593 free (wrk);
594
595 sigprocmask (SIG_SETMASK, &oldsigset, 0);
596 UNLOCK (wrklock);
597}
598
599static void req_send (aio_req req)
600{
601 while (started < wanted && nreqs >= started)
602 start_thread ();
603
604 ++nreqs;
605
606 LOCK (reqlock);
607 reqq_push (&req_queue, req);
608 pthread_cond_signal (&reqwait);
609 UNLOCK (reqlock);
610}
611
612static void end_thread (void)
613{
614 aio_req req;
615
616 Newz (0, req, 1, aio_cb);
617
618 req->type = REQ_QUIT;
619 req->pri = PRI_MAX + PRI_BIAS;
620
621 req_send (req);
622}
623
624static void min_parallel (int nthreads)
625{
626 if (wanted < nthreads)
627 wanted = nthreads;
628}
629
630static void max_parallel (int nthreads)
631{
632 int cur = started;
633
634 if (wanted > nthreads)
635 wanted = nthreads;
636
637 while (cur > wanted)
638 {
639 end_thread ();
640 cur--;
641 }
642
643 while (started > wanted)
644 {
645 poll_wait ();
646 poll_cb ();
647 }
648}
649
650static void create_pipe ()
651{
652 if (pipe (respipe))
653 croak ("unable to initialize result pipe");
654
655 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
656 croak ("cannot set result pipe to nonblocking mode");
657
658 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
659 croak ("cannot set result pipe to nonblocking mode");
660} 1011}
661 1012
662/*****************************************************************************/ 1013/*****************************************************************************/
663/* work around various missing functions */
664 1014
665#if !HAVE_PREADWRITE 1015static void
666# define pread aio_pread 1016ts_set (struct timespec *ts, NV value)
667# define pwrite aio_pwrite
668
669/*
670 * make our pread/pwrite safe against themselves, but not against
671 * normal read/write by using a mutex. slows down execution a lot,
672 * but that's your problem, not mine.
673 */
674static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
675
676static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
677{ 1017{
678 ssize_t res; 1018 ts->tv_sec = value;
679 off_t ooffset; 1019 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
680
681 LOCK (preadwritelock);
682 ooffset = lseek (fd, 0, SEEK_CUR);
683 lseek (fd, offset, SEEK_SET);
684 res = read (fd, buf, count);
685 lseek (fd, ooffset, SEEK_SET);
686 UNLOCK (preadwritelock);
687
688 return res;
689} 1020}
690 1021
691static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1022static NV
1023ts_get (const struct timespec *ts)
692{ 1024{
693 ssize_t res; 1025 return ts->tv_sec + ts->tv_nsec * 1e-9;
694 off_t ooffset;
695
696 LOCK (preadwritelock);
697 ooffset = lseek (fd, 0, SEEK_CUR);
698 lseek (fd, offset, SEEK_SET);
699 res = write (fd, buf, count);
700 lseek (fd, offset, SEEK_SET);
701 UNLOCK (preadwritelock);
702
703 return res;
704} 1026}
705#endif
706 1027
707#if !HAVE_FDATASYNC 1028/*****************************************************************************/
708# define fdatasync fsync
709#endif
710 1029
711#if !HAVE_READAHEAD 1030XS(boot_IO__AIO) ecb_cold;
712# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
713 1031
714static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 1032MODULE = IO::AIO PACKAGE = IO::AIO
715{
716 dBUF;
717 1033
718 while (count > 0) 1034PROTOTYPES: ENABLE
719 {
720 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
721 1035
722 pread (fd, aio_buf, len, offset); 1036BOOT:
723 offset += len;
724 count -= len;
725 }
726
727 errno = 0;
728}
729
730#endif
731
732#if !HAVE_READDIR_R
733# define readdir_r aio_readdir_r
734
735static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
736
737static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
738{ 1037{
739 struct dirent *e; 1038 static const struct {
740 int errorno; 1039 const char *name;
1040 IV iv;
1041 } *civ, const_iv[] = {
1042# define const_niv(name, value) { # name, (IV) value },
1043# define const_iv(name) { # name, (IV) name },
1044# define const_eio(name) { # name, (IV) EIO_ ## name },
741 1045
742 LOCK (readdirlock); 1046 /* you have to re-run ./gendef0 after adding/removing any constants here */
1047 /* the first block can be undef if missing */
1048 const_iv (ENOSYS)
1049 const_iv (EXDEV)
1050 const_iv (EBADR)
743 1051
744 e = readdir (dirp); 1052 /* for lseek */
745 errorno = errno; 1053 const_iv (SEEK_DATA)
1054 const_iv (SEEK_HOLE)
746 1055
747 if (e) 1056 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
748 { 1057 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
749 *res = ent; 1058 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
750 strcpy (ent->d_name, e->d_name); 1059 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
751 } 1060 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
752 else 1061 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
753 *res = 0;
754 1062
755 UNLOCK (readdirlock); 1063 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1064 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1065 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1066 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1067 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
756 1068
757 errno = errorno; 1069 /* the second block will be 0 when missing */
758 return e ? 0 : -1; 1070 const_iv (O_ACCMODE)
759}
760#endif
761 1071
762/* sendfile always needs emulation */ 1072 const_iv (O_RDONLY)
763static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) 1073 const_iv (O_WRONLY)
764{ 1074 const_iv (O_RDWR)
765 ssize_t res; 1075 const_iv (O_CREAT)
1076 const_iv (O_TRUNC)
1077 const_iv (O_EXCL)
1078 const_iv (O_APPEND)
766 1079
767 if (!count) 1080 const_iv (O_ASYNC)
768 return 0; 1081 const_iv (O_DIRECT)
1082 const_iv (O_NOATIME)
769 1083
770#if HAVE_SENDFILE 1084 const_iv (O_CLOEXEC)
771# if __linux 1085 const_iv (O_NOCTTY)
772 res = sendfile (ofd, ifd, &offset, count); 1086 const_iv (O_NOFOLLOW)
1087 const_iv (O_NONBLOCK)
1088 const_iv (O_EXEC)
1089 const_iv (O_SEARCH)
1090 const_iv (O_DIRECTORY)
1091 const_iv (O_DSYNC)
1092 const_iv (O_RSYNC)
1093 const_iv (O_SYNC)
1094 const_iv (O_PATH)
1095 const_iv (O_TMPFILE)
1096 const_iv (O_TTY_INIT)
773 1097
774# elif __freebsd 1098 const_iv (S_IFIFO)
775 /* 1099 const_iv (S_IFCHR)
776 * Of course, the freebsd sendfile is a dire hack with no thoughts 1100 const_iv (S_IFBLK)
777 * wasted on making it similar to other I/O functions. 1101 const_iv (S_IFLNK)
778 */ 1102 const_iv (S_IFREG)
779 { 1103 const_iv (S_IFDIR)
780 off_t sbytes; 1104 const_iv (S_IFWHT)
781 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); 1105 const_iv (S_IFSOCK)
1106 const_iv (S_IFMT)
782 1107
783 if (res < 0 && sbytes) 1108 const_iv (ST_RDONLY)
784 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ 1109 const_iv (ST_NOSUID)
785 res = sbytes; 1110 const_iv (ST_NODEV)
1111 const_iv (ST_NOEXEC)
1112 const_iv (ST_SYNCHRONOUS)
1113 const_iv (ST_MANDLOCK)
1114 const_iv (ST_WRITE)
1115 const_iv (ST_APPEND)
1116 const_iv (ST_IMMUTABLE)
1117 const_iv (ST_NOATIME)
1118 const_iv (ST_NODIRATIME)
1119 const_iv (ST_RELATIME)
1120
1121 const_iv (PROT_NONE)
1122 const_iv (PROT_EXEC)
1123 const_iv (PROT_READ)
1124 const_iv (PROT_WRITE)
1125
1126 const_iv (MAP_PRIVATE)
1127 const_iv (MAP_SHARED)
1128 const_iv (MAP_FIXED)
1129 const_iv (MAP_ANONYMOUS)
1130
1131 /* linuxish */
1132 const_iv (MAP_LOCKED)
1133 const_iv (MAP_NORESERVE)
1134 const_iv (MAP_POPULATE)
1135 const_iv (MAP_NONBLOCK)
1136 const_iv (MAP_GROWSDOWN)
1137 const_iv (MAP_32BIT)
1138 const_iv (MAP_HUGETLB)
1139 const_iv (MAP_STACK)
1140
1141 const_iv (MREMAP_MAYMOVE)
1142 const_iv (MREMAP_FIXED)
1143
1144 const_iv (F_DUPFD_CLOEXEC)
1145
1146 const_iv (MSG_CMSG_CLOEXEC)
1147 const_iv (SOCK_CLOEXEC)
1148
1149 const_iv (F_OFD_GETLK)
1150 const_iv (F_OFD_SETLK)
1151 const_iv (F_OFD_GETLKW)
1152
1153 const_iv (FIFREEZE)
1154 const_iv (FITHAW)
1155 const_iv (FITRIM)
1156 const_iv (FICLONE)
1157 const_iv (FICLONERANGE)
1158 const_iv (FIDEDUPERANGE)
1159
1160 const_iv (FS_IOC_GETFLAGS)
1161 const_iv (FS_IOC_SETFLAGS)
1162 const_iv (FS_IOC_GETVERSION)
1163 const_iv (FS_IOC_SETVERSION)
1164 const_iv (FS_IOC_FIEMAP)
1165 const_iv (FS_IOC_FSGETXATTR)
1166 const_iv (FS_IOC_FSSETXATTR)
1167 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1168 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1169 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1170
1171 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1172
1173 const_iv (FS_SECRM_FL)
1174 const_iv (FS_UNRM_FL)
1175 const_iv (FS_COMPR_FL)
1176 const_iv (FS_SYNC_FL)
1177 const_iv (FS_IMMUTABLE_FL)
1178 const_iv (FS_APPEND_FL)
1179 const_iv (FS_NODUMP_FL)
1180 const_iv (FS_NOATIME_FL)
1181 const_iv (FS_DIRTY_FL)
1182 const_iv (FS_COMPRBLK_FL)
1183 const_iv (FS_NOCOMP_FL)
1184 const_iv (FS_ENCRYPT_FL)
1185 const_iv (FS_BTREE_FL)
1186 const_iv (FS_INDEX_FL)
1187 const_iv (FS_JOURNAL_DATA_FL)
1188 const_iv (FS_NOTAIL_FL)
1189 const_iv (FS_DIRSYNC_FL)
1190 const_iv (FS_TOPDIR_FL)
1191 const_iv (FS_FL_USER_MODIFIABLE)
1192
1193 const_iv (FS_XFLAG_REALTIME)
1194 const_iv (FS_XFLAG_PREALLOC)
1195 const_iv (FS_XFLAG_IMMUTABLE)
1196 const_iv (FS_XFLAG_APPEND)
1197 const_iv (FS_XFLAG_SYNC)
1198 const_iv (FS_XFLAG_NOATIME)
1199 const_iv (FS_XFLAG_NODUMP)
1200 const_iv (FS_XFLAG_RTINHERIT)
1201 const_iv (FS_XFLAG_PROJINHERIT)
1202 const_iv (FS_XFLAG_NOSYMLINKS)
1203 const_iv (FS_XFLAG_EXTSIZE)
1204 const_iv (FS_XFLAG_EXTSZINHERIT)
1205 const_iv (FS_XFLAG_NODEFRAG)
1206 const_iv (FS_XFLAG_FILESTREAM)
1207 const_iv (FS_XFLAG_DAX)
1208 const_iv (FS_XFLAG_HASATTR)
1209
1210 const_iv (FIEMAP_FLAG_SYNC)
1211 const_iv (FIEMAP_FLAG_XATTR)
1212 const_iv (FIEMAP_FLAGS_COMPAT)
1213 const_iv (FIEMAP_EXTENT_LAST)
1214 const_iv (FIEMAP_EXTENT_UNKNOWN)
1215 const_iv (FIEMAP_EXTENT_DELALLOC)
1216 const_iv (FIEMAP_EXTENT_ENCODED)
1217 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1218 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1219 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1220 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1221 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1222 const_iv (FIEMAP_EXTENT_MERGED)
1223 const_iv (FIEMAP_EXTENT_SHARED)
1224
1225 const_iv (SPLICE_F_MOVE)
1226 const_iv (SPLICE_F_NONBLOCK)
1227 const_iv (SPLICE_F_MORE)
1228 const_iv (SPLICE_F_GIFT)
1229
1230 const_iv (EFD_CLOEXEC)
1231 const_iv (EFD_NONBLOCK)
1232 const_iv (EFD_SEMAPHORE)
1233
1234 const_iv (CLOCK_REALTIME)
1235 const_iv (CLOCK_MONOTONIC)
1236 const_iv (CLOCK_BOOTTIME)
1237 const_iv (CLOCK_REALTIME_ALARM)
1238 const_iv (CLOCK_BOOTTIME_ALARM)
1239
1240 const_iv (TFD_NONBLOCK)
1241 const_iv (TFD_CLOEXEC)
1242
1243 const_iv (TFD_TIMER_ABSTIME)
1244 const_iv (TFD_TIMER_CANCEL_ON_SET)
1245
1246 /* these are libeio constants, and are independent of gendef0 */
1247 const_eio (SEEK_SET)
1248 const_eio (SEEK_CUR)
1249 const_eio (SEEK_END)
1250
1251 const_eio (MCL_FUTURE)
1252 const_eio (MCL_CURRENT)
1253
1254 const_eio (MS_ASYNC)
1255 const_eio (MS_INVALIDATE)
1256 const_eio (MS_SYNC)
1257
1258 const_eio (MT_MODIFY)
1259
1260 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1261 const_eio (SYNC_FILE_RANGE_WRITE)
1262 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1263
1264 const_eio (FALLOC_FL_KEEP_SIZE)
1265 const_eio (FALLOC_FL_PUNCH_HOLE)
1266 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1267 const_eio (FALLOC_FL_ZERO_RANGE)
1268 const_eio (FALLOC_FL_INSERT_RANGE)
1269 const_eio (FALLOC_FL_UNSHARE_RANGE)
1270
1271 const_eio (RENAME_NOREPLACE)
1272 const_eio (RENAME_EXCHANGE)
1273 const_eio (RENAME_WHITEOUT)
1274
1275 const_eio (READDIR_DENTS)
1276 const_eio (READDIR_DIRS_FIRST)
1277 const_eio (READDIR_STAT_ORDER)
1278 const_eio (READDIR_FOUND_UNKNOWN)
1279
1280 const_eio (DT_UNKNOWN)
1281 const_eio (DT_FIFO)
1282 const_eio (DT_CHR)
1283 const_eio (DT_DIR)
1284 const_eio (DT_BLK)
1285 const_eio (DT_REG)
1286 const_eio (DT_LNK)
1287 const_eio (DT_SOCK)
1288 const_eio (DT_WHT)
786 } 1289 };
787 1290
788# elif __hpux 1291 aio_stash = gv_stashpv ("IO::AIO" , 1);
789 res = sendfile (ofd, ifd, offset, count, 0, 0); 1292 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1293 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1294 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
790 1295
791# elif __solaris 1296 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
792 { 1297 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
793 struct sendfilevec vec;
794 size_t sbytes;
795 1298
796 vec.sfv_fd = ifd; 1299 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
797 vec.sfv_flag = 0;
798 vec.sfv_off = offset;
799 vec.sfv_len = count;
800 1300
801 res = sendfilev (ofd, &vec, 1, &sbytes); 1301 reinit ();
1302}
802 1303
803 if (res < 0 && sbytes) 1304void
1305reinit ()
1306 PROTOTYPE:
1307
1308void
1309max_poll_reqs (unsigned int nreqs)
1310 PROTOTYPE: $
1311 CODE:
1312 eio_set_max_poll_reqs (nreqs);
1313
1314void
1315max_poll_time (double nseconds)
1316 PROTOTYPE: $
1317 CODE:
1318 eio_set_max_poll_time (nseconds);
1319
1320void
1321min_parallel (unsigned int nthreads)
1322 PROTOTYPE: $
1323 CODE:
1324 eio_set_min_parallel (nthreads);
1325
1326void
1327max_parallel (unsigned int nthreads)
1328 PROTOTYPE: $
1329 CODE:
1330 eio_set_max_parallel (nthreads);
1331
1332void
1333max_idle (unsigned int nthreads)
1334 PROTOTYPE: $
1335 CODE:
1336 eio_set_max_idle (nthreads);
1337
1338void
1339idle_timeout (unsigned int seconds)
1340 PROTOTYPE: $
1341 CODE:
1342 eio_set_idle_timeout (seconds);
1343
1344void
1345max_outstanding (unsigned int maxreqs)
1346 PROTOTYPE: $
1347 CODE:
1348 max_outstanding = maxreqs;
1349
1350void
1351aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1352 PPCODE:
1353{
1354 dREQ;
1355
1356 req->type = EIO_WD_OPEN;
1357 req_set_path1 (req, pathname);
1358
1359 REQ_SEND;
1360}
1361
1362void
1363aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1364 PPCODE:
1365{
1366 dREQ;
1367
1368 req->type = EIO_OPEN;
1369 req_set_path1 (req, pathname);
1370 req->int1 = flags;
1371 req->int2 = mode;
1372
1373 REQ_SEND;
1374}
1375
1376void
1377aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1378 ALIAS:
1379 aio_fsync = EIO_FSYNC
1380 aio_fdatasync = EIO_FDATASYNC
1381 aio_syncfs = EIO_SYNCFS
1382 PPCODE:
1383{
1384 int fd = s_fileno_croak (fh, 0);
1385 dREQ;
1386
1387 req->type = ix;
1388 req->sv1 = newSVsv (fh);
1389 req->int1 = fd;
1390
1391 REQ_SEND;
1392}
1393
1394void
1395aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1396 PPCODE:
1397{
1398 int fd = s_fileno_croak (fh, 0);
1399 dREQ;
1400
1401 req->type = EIO_SYNC_FILE_RANGE;
1402 req->sv1 = newSVsv (fh);
1403 req->int1 = fd;
1404 req->offs = offset;
804 res = sbytes; 1405 req->size = nbytes;
805 } 1406 req->int2 = flags;
806 1407
807# endif 1408 REQ_SEND;
1409}
1410
1411void
1412aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1413 PPCODE:
1414{
1415 int fd = s_fileno_croak (fh, 0);
1416 dREQ;
1417
1418 req->type = EIO_FALLOCATE;
1419 req->sv1 = newSVsv (fh);
1420 req->int1 = fd;
1421 req->int2 = mode;
1422 req->offs = offset;
1423 req->size = len;
1424
1425 REQ_SEND;
1426}
1427
1428void
1429aio_close (SV *fh, SV *callback = &PL_sv_undef)
1430 PPCODE:
1431{
1432 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1433 int fd = s_fileno_croak (fh, 0);
1434 dREQ;
1435
1436 if (expect_false (close_fd < 0))
1437 {
1438 int pipefd [2];
1439
1440 if (
1441#ifdef _WIN32
1442 _pipe (pipefd, 1, _O_BINARY) < 0
808#else 1443#else
809 res = -1; 1444 pipe (pipefd) < 0
810 errno = ENOSYS; 1445 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
811#endif 1446#endif
812 1447 || close (pipefd [1]) < 0
813 if (res < 0
814 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
815#if __solaris
816 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
817#endif
818 )
819 )
820 {
821 /* emulate sendfile. this is a major pain in the ass */
822 dBUF;
823
824 res = 0;
825
826 while (count)
827 {
828 ssize_t cnt;
829
830 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
831
832 if (cnt <= 0)
833 { 1448 )
834 if (cnt && !res) res = -1; 1449 abort (); /*D*/
835 break;
836 }
837 1450
838 cnt = write (ofd, aio_buf, cnt); 1451 close_fd = pipefd [0];
839
840 if (cnt <= 0)
841 {
842 if (cnt && !res) res = -1;
843 break;
844 }
845
846 offset += cnt;
847 res += cnt;
848 count -= cnt;
849 }
850 }
851
852 return res;
853}
854
855/* read a full directory */
856static void scandir_ (aio_req req, worker *self)
857{
858 DIR *dirp;
859 union
860 {
861 struct dirent d;
862 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
863 } *u;
864 struct dirent *entp;
865 char *name, *names;
866 int memlen = 4096;
867 int memofs = 0;
868 int res = 0;
869 int errorno;
870
871 LOCK (wrklock);
872 self->dirp = dirp = opendir (req->dataptr);
873 self->dbuf = u = malloc (sizeof (*u));
874 UNLOCK (wrklock);
875
876 req->data2ptr = names = malloc (memlen);
877
878 if (dirp && u && names)
879 for (;;)
880 {
881 errno = 0;
882 readdir_r (dirp, &u->d, &entp);
883
884 if (!entp)
885 break;
886
887 name = entp->d_name;
888
889 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
890 {
891 int len = strlen (name) + 1;
892
893 res++;
894
895 while (memofs + len > memlen)
896 {
897 memlen *= 2;
898 LOCK (wrklock);
899 req->data2ptr = names = realloc (names, memlen);
900 UNLOCK (wrklock);
901
902 if (!names)
903 break;
904 }
905
906 memcpy (names + memofs, name, len);
907 memofs += len;
908 } 1452 }
909 }
910 1453
911 if (errno) 1454 req->type = EIO_DUP2;
912 res = -1; 1455 req->int1 = close_fd;
913 1456 req->sv2 = newSVsv (fh);
914 req->result = res; 1457 req->int2 = fd;
915}
916 1458
917/*****************************************************************************/ 1459 REQ_SEND;
918
919static void *aio_proc (void *thr_arg)
920{
921 aio_req req;
922 int type;
923 worker *self = (worker *)thr_arg;
924
925 do
926 {
927 LOCK (reqlock);
928
929 for (;;)
930 {
931 self->req = req = reqq_shift (&req_queue);
932
933 if (req)
934 break;
935
936 pthread_cond_wait (&reqwait, &reqlock);
937 }
938
939 UNLOCK (reqlock);
940
941 errno = 0; /* strictly unnecessary */
942 type = req->type; /* remember type for QUIT check */
943
944 if (!(req->flags & FLAG_CANCELLED))
945 switch (type)
946 {
947 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
948 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
949
950 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
951 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
952
953 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
954 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
955 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
956
957 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
958 case REQ_CLOSE: req->result = close (req->fd); break;
959 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
960 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
961 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
962 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
963 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
964
965 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
966 case REQ_FSYNC: req->result = fsync (req->fd); break;
967 case REQ_READDIR: scandir_ (req, self); break;
968
969 case REQ_BUSY:
970 {
971 struct timeval tv;
972
973 tv.tv_sec = req->fd;
974 tv.tv_usec = req->fd2;
975
976 req->result = select (0, 0, 0, 0, &tv);
977 }
978
979 case REQ_GROUP:
980 case REQ_NOP:
981 case REQ_QUIT:
982 break;
983
984 default:
985 req->result = ENOSYS;
986 break;
987 }
988
989 req->errorno = errno;
990
991 LOCK (reslock);
992
993 if (!reqq_push (&res_queue, req))
994 /* write a dummy byte to the pipe so fh becomes ready */
995 write (respipe [1], &respipe, 1);
996
997 self->req = 0;
998 worker_clear (self);
999
1000 UNLOCK (reslock);
1001 }
1002 while (type != REQ_QUIT);
1003
1004 LOCK (wrklock);
1005 worker_free (self);
1006 UNLOCK (wrklock);
1007
1008 return 0;
1009} 1460}
1010 1461
1011/*****************************************************************************/
1012
1013static void atfork_prepare (void)
1014{
1015 LOCK (wrklock);
1016 LOCK (reqlock);
1017 LOCK (reslock);
1018#if !HAVE_PREADWRITE
1019 LOCK (preadwritelock);
1020#endif
1021#if !HAVE_READDIR_R
1022 LOCK (readdirlock);
1023#endif
1024}
1025
1026static void atfork_parent (void)
1027{
1028#if !HAVE_READDIR_R
1029 UNLOCK (readdirlock);
1030#endif
1031#if !HAVE_PREADWRITE
1032 UNLOCK (preadwritelock);
1033#endif
1034 UNLOCK (reslock);
1035 UNLOCK (reqlock);
1036 UNLOCK (wrklock);
1037}
1038
1039static void atfork_child (void)
1040{
1041 aio_req prv;
1042
1043 while (prv = reqq_shift (&req_queue))
1044 req_free (prv);
1045
1046 while (prv = reqq_shift (&res_queue))
1047 req_free (prv);
1048
1049 while (wrk_first.next != &wrk_first)
1050 {
1051 worker *wrk = wrk_first.next;
1052
1053 if (wrk->req)
1054 req_free (wrk->req);
1055
1056 worker_clear (wrk);
1057 worker_free (wrk);
1058 }
1059
1060 started = 0;
1061 nreqs = 0;
1062
1063 close (respipe [0]);
1064 close (respipe [1]);
1065 create_pipe ();
1066
1067 atfork_parent ();
1068}
1069
1070#define dREQ \
1071 aio_req req; \
1072 int req_pri = next_pri; \
1073 next_pri = DEFAULT_PRI + PRI_BIAS; \
1074 \
1075 if (SvOK (callback) && !SvROK (callback)) \
1076 croak ("callback must be undef or of reference type"); \
1077 \
1078 Newz (0, req, 1, aio_cb); \
1079 if (!req) \
1080 croak ("out of memory during aio_req allocation"); \
1081 \
1082 req->callback = newSVsv (callback); \
1083 req->pri = req_pri
1084
1085#define REQ_SEND \
1086 req_send (req); \
1087 \
1088 if (GIMME_V != G_VOID) \
1089 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1090
1091MODULE = IO::AIO PACKAGE = IO::AIO
1092
1093PROTOTYPES: ENABLE
1094
1095BOOT:
1096{
1097 HV *stash = gv_stashpv ("IO::AIO", 1);
1098 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1099 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1100 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1101
1102 create_pipe ();
1103 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1104}
1105
1106void 1462void
1107min_parallel (nthreads) 1463aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1108 int nthreads 1464 PPCODE:
1109 PROTOTYPE: $
1110
1111void
1112max_parallel (nthreads)
1113 int nthreads
1114 PROTOTYPE: $
1115
1116void
1117aio_open (pathname,flags,mode,callback=&PL_sv_undef)
1118 SV * pathname
1119 int flags
1120 int mode
1121 SV * callback
1122 PROTOTYPE: $$$;$
1123 PPCODE:
1124{ 1465{
1466 int fd = s_fileno_croak (fh, 0);
1125 dREQ; 1467 dREQ;
1126 1468
1127 req->type = REQ_OPEN; 1469 req->type = EIO_SEEK;
1128 req->data = newSVsv (pathname); 1470 req->sv1 = newSVsv (fh);
1129 req->dataptr = SvPVbyte_nolen (req->data); 1471 req->int1 = fd;
1130 req->fd = flags; 1472 req->offs = SvVAL64 (offset);
1131 req->mode = mode; 1473 req->int2 = whence;
1132 1474
1133 REQ_SEND; 1475 REQ_SEND;
1134} 1476}
1135 1477
1136void 1478void
1137aio_close (fh,callback=&PL_sv_undef) 1479aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1138 SV * fh
1139 SV * callback
1140 PROTOTYPE: $;$
1141 ALIAS: 1480 ALIAS:
1142 aio_close = REQ_CLOSE
1143 aio_fsync = REQ_FSYNC
1144 aio_fdatasync = REQ_FDATASYNC
1145 PPCODE:
1146{
1147 dREQ;
1148
1149 req->type = ix;
1150 req->fh = newSVsv (fh);
1151 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1152
1153 REQ_SEND (req);
1154}
1155
1156void
1157aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1158 SV * fh
1159 UV offset
1160 UV length
1161 SV * data
1162 UV dataoffset
1163 SV * callback
1164 ALIAS:
1165 aio_read = REQ_READ 1481 aio_read = EIO_READ
1166 aio_write = REQ_WRITE 1482 aio_write = EIO_WRITE
1167 PROTOTYPE: $$$$$;$
1168 PPCODE: 1483 PPCODE:
1169{ 1484{
1170 aio_req req;
1171 STRLEN svlen; 1485 STRLEN svlen;
1486 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1172 char *svptr = SvPVbyte (data, svlen); 1487 char *svptr = SvPVbyte (data, svlen);
1173 1488 UV len = SvUV (length);
1174 SvUPGRADE (data, SVt_PV);
1175 SvPOK_on (data);
1176 1489
1177 if (dataoffset < 0) 1490 if (dataoffset < 0)
1178 dataoffset += svlen; 1491 dataoffset += svlen;
1179 1492
1180 if (dataoffset < 0 || dataoffset > svlen) 1493 if (dataoffset < 0 || dataoffset > svlen)
1181 croak ("data offset outside of string"); 1494 croak ("dataoffset outside of data scalar");
1182 1495
1183 if (ix == REQ_WRITE) 1496 if (ix == EIO_WRITE)
1184 { 1497 {
1185 /* write: check length and adjust. */ 1498 /* write: check length and adjust. */
1186 if (length < 0 || length + dataoffset > svlen) 1499 if (!SvOK (length) || len + dataoffset > svlen)
1187 length = svlen - dataoffset; 1500 len = svlen - dataoffset;
1188 } 1501 }
1189 else 1502 else
1190 { 1503 {
1191 /* read: grow scalar as necessary */ 1504 /* read: check type and grow scalar as necessary */
1505 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1192 svptr = SvGROW (data, length + dataoffset); 1506 svptr = sv_grow (data, len + dataoffset + 1);
1507 else if (SvCUR (data) < len + dataoffset)
1508 croak ("length + dataoffset outside of scalar, and cannot grow");
1193 } 1509 }
1194
1195 if (length < 0)
1196 croak ("length must not be negative");
1197 1510
1198 { 1511 {
1199 dREQ; 1512 dREQ;
1200 1513
1201 req->type = ix; 1514 req->type = ix;
1202 req->fh = newSVsv (fh); 1515 req->sv1 = newSVsv (fh);
1203 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1516 req->int1 = fd;
1204 : IoOFP (sv_2io (fh))); 1517 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1205 req->offset = offset; 1518 req->size = len;
1206 req->length = length;
1207 req->data = SvREFCNT_inc (data); 1519 req->sv2 = SvREFCNT_inc (data);
1208 req->dataptr = (char *)svptr + dataoffset; 1520 req->ptr2 = (char *)svptr + dataoffset;
1521 req->stroffset = dataoffset;
1209 1522
1210 if (!SvREADONLY (data)) 1523 if (!SvREADONLY (data))
1211 { 1524 {
1212 SvREADONLY_on (data); 1525 SvREADONLY_on (data);
1213 req->data2ptr = (void *)data; 1526 req->flags |= FLAG_SV2_RO_OFF;
1214 } 1527 }
1215 1528
1216 REQ_SEND; 1529 REQ_SEND;
1217 } 1530 }
1218} 1531}
1219 1532
1220void 1533void
1221aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1534aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1222 SV * out_fh 1535 ALIAS:
1223 SV * in_fh 1536 aio_ioctl = EIO_IOCTL
1224 UV in_offset 1537 aio_fcntl = EIO_FCNTL
1225 UV length
1226 SV * callback
1227 PROTOTYPE: $$$$;$
1228 PPCODE: 1538 PPCODE:
1229{ 1539{
1230 dREQ; 1540 int fd = s_fileno_croak (fh, 0);
1541 char *svptr;
1231 1542
1232 req->type = REQ_SENDFILE; 1543 if (SvPOK (arg) || !SvNIOK (arg))
1233 req->fh = newSVsv (out_fh);
1234 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1235 req->fh2 = newSVsv (in_fh);
1236 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1237 req->offset = in_offset;
1238 req->length = length;
1239
1240 REQ_SEND;
1241}
1242
1243void
1244aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1245 SV * fh
1246 UV offset
1247 IV length
1248 SV * callback
1249 PROTOTYPE: $$$;$
1250 PPCODE:
1251{
1252 dREQ;
1253
1254 req->type = REQ_READAHEAD;
1255 req->fh = newSVsv (fh);
1256 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1257 req->offset = offset;
1258 req->length = length;
1259
1260 REQ_SEND;
1261}
1262
1263void
1264aio_stat (fh_or_path,callback=&PL_sv_undef)
1265 SV * fh_or_path
1266 SV * callback
1267 ALIAS:
1268 aio_stat = REQ_STAT
1269 aio_lstat = REQ_LSTAT
1270 PPCODE:
1271{
1272 dREQ;
1273
1274 New (0, req->statdata, 1, Stat_t);
1275 if (!req->statdata)
1276 { 1544 {
1277 req_free (req); 1545 STRLEN svlen;
1278 croak ("out of memory during aio_req->statdata allocation"); 1546 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1279 } 1547#ifdef IOCPARM_LEN
1548 STRLEN need = IOCPARM_LEN (request);
1549#else
1550 STRLEN need = 256;
1551#endif
1280 1552
1281 if (SvPOK (fh_or_path)) 1553 if (svlen < need)
1282 { 1554 svptr = SvGROW (arg, need);
1283 req->type = ix;
1284 req->data = newSVsv (fh_or_path);
1285 req->dataptr = SvPVbyte_nolen (req->data);
1286 } 1555 }
1287 else 1556 else
1557 svptr = (char *)SvIV (arg);
1558
1288 { 1559 {
1560 dREQ;
1561
1289 req->type = REQ_FSTAT; 1562 req->type = ix;
1290 req->fh = newSVsv (fh_or_path); 1563 req->sv1 = newSVsv (fh);
1291 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1564 req->int1 = fd;
1565 req->int2 = (long)request;
1566 req->sv2 = SvREFCNT_inc (arg);
1567 req->ptr2 = svptr;
1568
1569 REQ_SEND;
1292 } 1570 }
1571}
1572
1573void
1574aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1575 ALIAS:
1576 aio_readlink = EIO_READLINK
1577 aio_realpath = EIO_REALPATH
1578 PPCODE:
1579{
1580 dREQ;
1581
1582 req->type = ix;
1583 req_set_path1 (req, pathname);
1293 1584
1294 REQ_SEND; 1585 REQ_SEND;
1295} 1586}
1296 1587
1297void 1588void
1298aio_unlink (pathname,callback=&PL_sv_undef) 1589aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1299 SV * pathname 1590 PPCODE:
1300 SV * callback 1591{
1592 int ifd = s_fileno_croak (in_fh , 0);
1593 int ofd = s_fileno_croak (out_fh, 1);
1594 dREQ;
1595
1596 req->type = EIO_SENDFILE;
1597 req->sv1 = newSVsv (out_fh);
1598 req->int1 = ofd;
1599 req->sv2 = newSVsv (in_fh);
1600 req->int2 = ifd;
1601 req->offs = in_offset;
1602 req->size = length;
1603
1604 REQ_SEND;
1605}
1606
1607void
1608aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1609 PPCODE:
1610{
1611 int fd = s_fileno_croak (fh, 0);
1612 dREQ;
1613
1614 req->type = EIO_READAHEAD;
1615 req->sv1 = newSVsv (fh);
1616 req->int1 = fd;
1617 req->offs = offset;
1618 req->size = length;
1619
1620 REQ_SEND;
1621}
1622
1623void
1624aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1301 ALIAS: 1625 ALIAS:
1626 aio_stat = EIO_STAT
1627 aio_lstat = EIO_LSTAT
1628 aio_statvfs = EIO_STATVFS
1629 PPCODE:
1630{
1631 dREQ;
1632
1633 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1634
1635 REQ_SEND;
1636}
1637
1638void
1639st_xtime ()
1640 ALIAS:
1641 st_atime = 1
1642 st_mtime = 2
1643 st_ctime = 4
1644 st_xtime = 7
1645 PPCODE:
1646 EXTEND (SP, 3);
1647 if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1648 if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1649 if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1650
1651void
1652st_xtimensec ()
1653 ALIAS:
1654 st_atimensec = 1
1655 st_mtimensec = 2
1656 st_ctimensec = 4
1657 st_xtimensec = 7
1658 PPCODE:
1659 EXTEND (SP, 3);
1660 if (ix & 1) PUSHs (newSViv (ATIMENSEC));
1661 if (ix & 2) PUSHs (newSViv (MTIMENSEC));
1662 if (ix & 4) PUSHs (newSViv (CTIMENSEC));
1663
1664UV
1665major (UV dev)
1666 ALIAS:
1667 minor = 1
1668 CODE:
1669 RETVAL = ix ? minor (dev) : major (dev);
1670 OUTPUT:
1671 RETVAL
1672
1673UV
1674makedev (UV maj, UV min)
1675 CODE:
1676 RETVAL = makedev (maj, min);
1677 OUTPUT:
1678 RETVAL
1679
1680void
1681aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1682 PPCODE:
1683{
1684 dREQ;
1685
1686 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1687 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1688 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1689
1690 REQ_SEND;
1691}
1692
1693void
1694aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1695 PPCODE:
1696{
1697 dREQ;
1698
1699 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1700 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1701
1702 REQ_SEND;
1703}
1704
1705void
1706aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1707 PPCODE:
1708{
1709 dREQ;
1710
1711 req->int2 = mode;
1712 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1713
1714 REQ_SEND;
1715}
1716
1717void
1718aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1719 PPCODE:
1720{
1721 dREQ;
1722
1723 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1724 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1725 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1726
1727 REQ_SEND;
1728}
1729
1730void
1731aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1732 PPCODE:
1733{
1734 dREQ;
1735
1736 req->type = EIO_READDIR;
1737 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1738
1739 if (flags & EIO_READDIR_DENTS)
1740 req->int1 |= EIO_READDIR_CUSTOM2;
1741
1742 req_set_path1 (req, pathname);
1743
1744 REQ_SEND;
1745}
1746
1747void
1748aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1749 PPCODE:
1750{
1751 dREQ;
1752
1753 req->type = EIO_MKDIR;
1754 req->int2 = mode;
1755 req_set_path1 (req, pathname);
1756
1757 REQ_SEND;
1758}
1759
1760void
1761aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1762 ALIAS:
1302 aio_unlink = REQ_UNLINK 1763 aio_unlink = EIO_UNLINK
1303 aio_rmdir = REQ_RMDIR 1764 aio_rmdir = EIO_RMDIR
1304 aio_readdir = REQ_READDIR 1765 aio_readdir = EIO_READDIR
1305 PPCODE: 1766 PPCODE:
1306{ 1767{
1307 dREQ; 1768 dREQ;
1308 1769
1309 req->type = ix; 1770 req->type = ix;
1310 req->data = newSVsv (pathname); 1771 req_set_path1 (req, pathname);
1311 req->dataptr = SvPVbyte_nolen (req->data); 1772
1312
1313 REQ_SEND; 1773 REQ_SEND;
1314} 1774}
1315 1775
1316void 1776void
1317aio_link (oldpath,newpath,callback=&PL_sv_undef) 1777aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1318 SV * oldpath
1319 SV * newpath
1320 SV * callback
1321 ALIAS: 1778 ALIAS:
1322 aio_link = REQ_LINK 1779 aio_link = EIO_LINK
1323 aio_symlink = REQ_SYMLINK 1780 aio_symlink = EIO_SYMLINK
1324 aio_rename = REQ_RENAME 1781 aio_rename = EIO_RENAME
1325 PPCODE: 1782 PPCODE:
1326{ 1783{
1784 eio_wd wd2 = 0;
1327 dREQ; 1785 dREQ;
1328 1786
1329 req->type = ix; 1787 req->type = ix;
1330 req->fh = newSVsv (oldpath); 1788 req_set_path1 (req, oldpath);
1331 req->data2ptr = SvPVbyte_nolen (req->fh); 1789 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1332 req->data = newSVsv (newpath); 1790 req->int3 = (long)wd2;
1333 req->dataptr = SvPVbyte_nolen (req->data);
1334 1791
1335 REQ_SEND; 1792 REQ_SEND;
1336} 1793}
1337 1794
1338void 1795void
1339aio_busy (delay,callback=&PL_sv_undef) 1796aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1340 double delay
1341 SV * callback
1342 PPCODE: 1797 PPCODE:
1343{ 1798{
1799 eio_wd wd2 = 0;
1344 dREQ; 1800 dREQ;
1345 1801
1346 req->type = REQ_BUSY; 1802 req->type = EIO_RENAME;
1347 req->fd = delay < 0. ? 0 : delay; 1803 req_set_path1 (req, oldpath);
1348 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1804 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1349 1805 req->int2 = flags;
1806 req->int3 = (long)wd2;
1807
1350 REQ_SEND; 1808 REQ_SEND;
1351} 1809}
1352 1810
1353void 1811void
1354aio_group (callback=&PL_sv_undef) 1812aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1355 SV * callback 1813 PPCODE:
1356 PROTOTYPE: ;$ 1814{
1815 dREQ;
1816
1817 req->type = EIO_MKNOD;
1818 req->int2 = (mode_t)mode;
1819 req->offs = dev;
1820 req_set_path1 (req, pathname);
1821
1822 REQ_SEND;
1823}
1824
1825void
1826aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1827 ALIAS:
1828 aio_mtouch = EIO_MTOUCH
1829 aio_msync = EIO_MSYNC
1357 PPCODE: 1830 PPCODE:
1358{ 1831{
1832 STRLEN svlen;
1833 char *svptr = SvPVbyte (data, svlen);
1834 UV len = SvUV (length);
1835
1836 if (flags < 0)
1837 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1838
1839 if (offset < 0)
1840 offset += svlen;
1841
1842 if (offset < 0 || offset > svlen)
1843 croak ("offset outside of scalar");
1844
1845 if (!SvOK (length) || len + offset > svlen)
1846 len = svlen - offset;
1847
1848 {
1849 dREQ;
1850
1851 req->type = ix;
1852 req->sv2 = SvREFCNT_inc (data);
1853 req->ptr2 = (char *)svptr + offset;
1854 req->size = len;
1855 req->int1 = flags;
1856
1857 REQ_SEND;
1858 }
1859}
1860
1861void
1862aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1863 PPCODE:
1864{
1865 STRLEN svlen;
1866 char *svptr = SvPVbyte (data, svlen);
1867 UV len = SvUV (length);
1868
1869 if (offset < 0)
1870 offset += svlen;
1871
1872 if (offset < 0 || offset > svlen)
1873 croak ("offset outside of scalar");
1874
1875 if (!SvOK (length) || len + offset > svlen)
1876 len = svlen - offset;
1877
1878 {
1879 dREQ;
1880
1881 req->type = EIO_MLOCK;
1882 req->sv2 = SvREFCNT_inc (data);
1883 req->ptr2 = (char *)svptr + offset;
1884 req->size = len;
1885
1886 REQ_SEND;
1887 }
1888}
1889
1890void
1891aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1892 PPCODE:
1893{
1894 dREQ;
1895
1896 req->type = EIO_MLOCKALL;
1897 req->int1 = flags;
1898
1899 REQ_SEND;
1900}
1901
1902void
1903aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1904 PPCODE:
1905{
1906 int fd = s_fileno_croak (fh, 0);
1359 dREQ; 1907 dREQ;
1360 1908
1361 req->type = REQ_GROUP; 1909 req->type = EIO_CUSTOM;
1362 req_send (req); 1910 req->sv1 = newSVsv (fh);
1911 req->int1 = fd;
1363 1912
1364 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1913 req->feed = fiemap;
1365} 1914#if HAVE_FIEMAP
1915 /* keep our fingers crossed that the next two types are 64 bit */
1916 req->offs = start;
1917 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1918 req->int2 = flags;
1919 req->int3 = SvOK (count) ? SvIV (count) : -1;
1920#endif
1366 1921
1922 REQ_SEND;
1923}
1924
1367void 1925void
1368aio_nop (callback=&PL_sv_undef) 1926aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1369 SV * callback 1927 PPCODE:
1928{
1929 char *svptr = 0;
1930
1931 sv_clear_foreign (data);
1932
1933 if (length) /* known length, directly read into scalar */
1934 {
1935 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1936 svptr = sv_grow (data, length + 1);
1937 else if (SvCUR (data) < length)
1938 croak ("length outside of scalar, and cannot grow");
1939 else
1940 svptr = SvPVbyte_nolen (data);
1941 }
1942
1943 {
1944 dREQ;
1945
1946 req->type = EIO_SLURP;
1947 req_set_path1 (req, pathname);
1948 req->offs = offset;
1949 req->size = length;
1950 req->sv2 = SvREFCNT_inc (data);
1951 req->ptr2 = svptr;
1952
1953 if (!SvREADONLY (data))
1954 {
1955 SvREADONLY_on (data);
1956 req->flags |= FLAG_SV2_RO_OFF;
1957 }
1958
1959 REQ_SEND;
1960 }
1961}
1962
1963void
1964aio_busy (double delay, SV *callback = &PL_sv_undef)
1370 PPCODE: 1965 PPCODE:
1371{ 1966{
1372 dREQ; 1967 dREQ;
1373 1968
1374 req->type = REQ_NOP; 1969 req->type = EIO_BUSY;
1970 req->nv1 = delay < 0. ? 0. : delay;
1375 1971
1376 REQ_SEND; 1972 REQ_SEND;
1377} 1973}
1378 1974
1379void 1975void
1380aioreq_pri (int pri = DEFAULT_PRI) 1976aio_group (SV *callback = &PL_sv_undef)
1381 CODE: 1977 PPCODE:
1978{
1979 dREQ;
1980
1981 req->type = EIO_GROUP;
1982
1983 PUTBACK;
1984 req_submit (req);
1985 SPAGAIN;
1986
1987 XPUSHs (req_sv (req, aio_grp_stash));
1988}
1989
1990void
1991aio_nop (SV *callback = &PL_sv_undef)
1992 ALIAS:
1993 aio_nop = EIO_NOP
1994 aio_sync = EIO_SYNC
1995 PPCODE:
1996{
1997 dREQ;
1998
1999 req->type = ix;
2000
2001 REQ_SEND;
2002}
2003
2004int
2005aioreq_pri (int pri = NO_INIT)
2006 CODE:
2007 RETVAL = next_pri;
2008 if (items > 0)
2009 {
1382 if (pri < PRI_MIN) pri = PRI_MIN; 2010 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1383 if (pri > PRI_MAX) pri = PRI_MAX; 2011 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1384 next_pri = pri + PRI_BIAS; 2012 next_pri = pri;
2013 }
2014 OUTPUT:
2015 RETVAL
1385 2016
1386void 2017void
1387aioreq_nice (int nice = 0) 2018aioreq_nice (int nice = 0)
1388 CODE: 2019 CODE:
1389 nice = next_pri - nice; 2020 nice = next_pri - nice;
1390 if (nice < PRI_MIN) nice = PRI_MIN; 2021 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1391 if (nice > PRI_MAX) nice = PRI_MAX; 2022 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1392 next_pri = nice + PRI_BIAS; 2023 next_pri = nice;
1393 2024
1394void 2025void
1395flush () 2026flush ()
1396 PROTOTYPE:
1397 CODE: 2027 CODE:
1398 while (nreqs) 2028 while (eio_nreqs ())
1399 { 2029 {
1400 poll_wait (); 2030 poll_wait ();
1401 poll_cb (); 2031 poll_cb ();
1402 } 2032 }
1403 2033
1404void 2034int
1405poll() 2035poll ()
1406 PROTOTYPE:
1407 CODE: 2036 CODE:
1408 if (nreqs)
1409 {
1410 poll_wait (); 2037 poll_wait ();
1411 poll_cb (); 2038 RETVAL = poll_cb ();
1412 }
1413
1414int
1415poll_fileno()
1416 PROTOTYPE:
1417 CODE:
1418 RETVAL = respipe [0];
1419 OUTPUT: 2039 OUTPUT:
1420 RETVAL 2040 RETVAL
1421 2041
1422int 2042int
2043poll_fileno ()
2044 CODE:
2045 RETVAL = s_epipe_fd (&respipe);
2046 OUTPUT:
2047 RETVAL
2048
2049int
1423poll_cb(...) 2050poll_cb (...)
1424 PROTOTYPE: 2051 PROTOTYPE:
1425 CODE: 2052 CODE:
1426 RETVAL = poll_cb (); 2053 RETVAL = poll_cb ();
1427 OUTPUT: 2054 OUTPUT:
1428 RETVAL 2055 RETVAL
1429 2056
1430void 2057void
1431poll_wait() 2058poll_wait ()
1432 PROTOTYPE:
1433 CODE: 2059 CODE:
1434 if (nreqs)
1435 poll_wait (); 2060 poll_wait ();
1436 2061
1437int 2062int
1438nreqs() 2063nreqs ()
1439 PROTOTYPE:
1440 CODE: 2064 CODE:
1441 RETVAL = nreqs; 2065 RETVAL = eio_nreqs ();
1442 OUTPUT: 2066 OUTPUT:
1443 RETVAL 2067 RETVAL
1444 2068
2069int
2070nready ()
2071 CODE:
2072 RETVAL = eio_nready ();
2073 OUTPUT:
2074 RETVAL
2075
2076int
2077npending ()
2078 CODE:
2079 RETVAL = eio_npending ();
2080 OUTPUT:
2081 RETVAL
2082
2083int
2084nthreads ()
2085 CODE:
2086 RETVAL = eio_nthreads ();
2087 OUTPUT:
2088 RETVAL
2089
2090int
2091fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2092 CODE:
2093 RETVAL = posix_fadvise (fh, offset, length, advice);
2094 OUTPUT:
2095 RETVAL
2096
2097IV
2098sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2099 CODE:
2100 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2101 OUTPUT:
2102 RETVAL
2103
2104void
2105mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2106 PPCODE:
2107 sv_clear_foreign (scalar);
2108{
2109 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2110 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2111 if (addr == (void *)-1)
2112 XSRETURN_NO;
2113
2114 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2115
2116 if (!(prot & PROT_WRITE))
2117 SvREADONLY_on (scalar);
2118
2119 XSRETURN_YES;
2120}
2121
2122void
2123munmap (SV *scalar)
2124 CODE:
2125 sv_clear_foreign (scalar);
2126
2127SV *
2128mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2129 CODE:
2130{
2131 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2132 void *new;
2133
2134 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2135 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2136
2137 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2138
2139 RETVAL = &PL_sv_no;
2140
2141 if (new != (void *)-1)
2142 {
2143 RETVAL = new == (void *)mg->mg_ptr
2144 ? newSVpvn ("0 but true", 10)
2145 : &PL_sv_yes;
2146
2147 mg->mg_ptr = (char *)new;
2148 mg->mg_obj = (SV *)new_length;
2149
2150 SvPVX (scalar) = mg->mg_ptr;
2151 SvCUR_set (scalar, new_length);
2152 }
2153}
2154 OUTPUT:
2155 RETVAL
2156
2157int
2158madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2159 ALIAS:
2160 mprotect = 1
2161 CODE:
2162{
2163 STRLEN svlen;
2164 void *addr = SvPVbyte (scalar, svlen);
2165 STRLEN len = SvUV (length);
2166
2167 if (offset < 0)
2168 offset += svlen;
2169
2170 if (offset < 0 || offset > svlen)
2171 croak ("offset outside of scalar");
2172
2173 if (!SvOK (length) || len + offset > svlen)
2174 len = svlen - offset;
2175
2176 addr = (void *)(((intptr_t)addr) + offset);
2177 eio_page_align (&addr, &len);
2178
2179 switch (ix)
2180 {
2181 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2182 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2183 }
2184}
2185 OUTPUT:
2186 RETVAL
2187
2188int
2189munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2190 CODE:
2191{
2192 STRLEN svlen;
2193 void *addr = SvPVbyte (scalar, svlen);
2194 size_t len = SvUV (length);
2195
2196 if (offset < 0)
2197 offset += svlen;
2198
2199 if (offset < 0 || offset > svlen)
2200 croak ("offset outside of scalar");
2201
2202 if (!SvOK (length) || len + offset > svlen)
2203 len = svlen - offset;
2204
2205 addr = (void *)(((intptr_t)addr) + offset);
2206 eio_page_align (&addr, &len);
2207#if _POSIX_MEMLOCK_RANGE
2208 RETVAL = munlock (addr, len);
2209#else
2210 RETVAL = EIO_ENOSYS ();
2211#endif
2212}
2213 OUTPUT:
2214 RETVAL
2215
2216int
2217munlockall ()
2218 CODE:
2219#if _POSIX_MEMLOCK
2220 munlockall ();
2221#else
2222 RETVAL = EIO_ENOSYS ();
2223#endif
2224 OUTPUT:
2225 RETVAL
2226
2227int
2228splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2229 CODE:
2230{
2231#if HAVE_LINUX_SPLICE
2232 loff_t off_in_, off_out_;
2233 RETVAL = splice (
2234 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2235 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2236 length, flags
2237 );
2238#else
2239 RETVAL = EIO_ENOSYS ();
2240#endif
2241}
2242 OUTPUT:
2243 RETVAL
2244
2245int
2246tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2247 CODE:
2248#if HAVE_LINUX_SPLICE
2249 RETVAL = tee (rfh, wfh, length, flags);
2250#else
2251 RETVAL = EIO_ENOSYS ();
2252#endif
2253 OUTPUT:
2254 RETVAL
2255
2256int
2257pipesize (aio_rfd rfh, int new_size = -1)
2258 PROTOTYPE: $;$
2259 CODE:
2260#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2261 if (new_size >= 0)
2262 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2263 else
2264 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2265#else
2266 errno = ENOSYS;
2267 RETVAL = -1;
2268#endif
2269 OUTPUT:
2270 RETVAL
2271
2272void
2273pipe2 (int flags = 0)
2274 PROTOTYPE: ;$
2275 PPCODE:
2276{
2277 int fd[2];
2278 int res;
2279
2280 if (flags)
2281#if HAVE_PIPE2
2282 res = pipe2 (fd, flags);
2283#else
2284 res = (errno = ENOSYS, -1);
2285#endif
2286 else
2287 res = pipe (fd);
2288
2289 if (!res)
2290 {
2291 EXTEND (SP, 2);
2292 PUSHs (newmortalFH (fd[0], O_RDONLY));
2293 PUSHs (newmortalFH (fd[1], O_WRONLY));
2294 }
2295}
2296
2297void
2298eventfd (unsigned int initval = 0, int flags = 0)
2299 PPCODE:
2300{
2301 int fd;
2302#if HAVE_EVENTFD
2303 fd = eventfd (initval, flags);
2304#else
2305 fd = (errno = ENOSYS, -1);
2306#endif
2307
2308 XPUSHs (newmortalFH (fd, O_RDWR));
2309}
2310
2311void
2312timerfd_create (int clockid, int flags = 0)
2313 PPCODE:
2314{
2315 int fd;
2316#if HAVE_TIMERFD
2317 fd = timerfd_create (clockid, flags);
2318#else
2319 fd = (errno = ENOSYS, -1);
2320#endif
2321
2322 XPUSHs (newmortalFH (fd, O_RDWR));
2323}
2324
2325void
2326timerfd_settime (SV *fh, int flags, NV interval, NV value)
2327 PPCODE:
2328{
2329 int fd = s_fileno_croak (fh, 0);
2330#if HAVE_TIMERFD
2331 int res;
2332 struct itimerspec its, ots;
2333
2334 ts_set (&its.it_interval, interval);
2335 ts_set (&its.it_value , value);
2336 res = timerfd_settime (fd, flags, &its, &ots);
2337
2338 if (!res)
2339 {
2340 EXTEND (SP, 2);
2341 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2342 PUSHs (newSVnv (ts_get (&ots.it_value)));
2343 }
2344#else
2345 errno = ENOSYS;
2346#endif
2347}
2348
2349void
2350timerfd_gettime (SV *fh)
2351 PPCODE:
2352{
2353 int fd = s_fileno_croak (fh, 0);
2354#if HAVE_TIMERFD
2355 int res;
2356 struct itimerspec ots;
2357 res = timerfd_gettime (fd, &ots);
2358
2359 if (!res)
2360 {
2361 EXTEND (SP, 2);
2362 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2363 PUSHs (newSVnv (ts_get (&ots.it_value)));
2364 }
2365#else
2366 errno = ENOSYS;
2367#endif
2368}
2369
2370UV
2371get_fdlimit ()
2372 CODE:
2373#if HAVE_RLIMITS
2374 struct rlimit rl;
2375 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2376 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2377#endif
2378 XSRETURN_UNDEF;
2379 OUTPUT:
2380 RETVAL
2381
2382void
2383min_fdlimit (UV limit = 0x7fffffffU)
2384 CODE:
2385{
2386#if HAVE_RLIMITS
2387 struct rlimit rl;
2388 rlim_t orig_rlim_max;
2389 UV bit;
2390
2391 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2392 goto fail;
2393
2394 if (rl.rlim_cur == RLIM_INFINITY)
2395 XSRETURN_YES;
2396
2397 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2398
2399 if (rl.rlim_cur < limit)
2400 {
2401 rl.rlim_cur = limit;
2402
2403 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2404 rl.rlim_max = rl.rlim_cur;
2405 }
2406
2407 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2408 XSRETURN_YES;
2409
2410 if (errno == EPERM)
2411 {
2412 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2413 /* our limit overflows a system-wide limit */
2414 /* try an adaptive algorithm, but do not lower the hardlimit */
2415 rl.rlim_max = 0;
2416 for (bit = 0x40000000U; bit; bit >>= 1)
2417 {
2418 rl.rlim_max |= bit;
2419 rl.rlim_cur = rl.rlim_max;
2420
2421 /* nevr decrease the hard limit */
2422 if (rl.rlim_max < orig_rlim_max)
2423 break;
2424
2425 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2426 rl.rlim_max &= ~bit; /* too high, remove bit again */
2427 }
2428
2429 /* now, raise the soft limit to the max permitted */
2430 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2431 {
2432 rl.rlim_cur = rl.rlim_max;
2433 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2434 errno = EPERM;
2435 }
2436 }
2437#endif
2438 fail:
2439 XSRETURN_UNDEF;
2440}
2441
2442void _on_next_submit (SV *cb)
2443 CODE:
2444 SvREFCNT_dec (on_next_submit);
2445 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2446
1445PROTOTYPES: DISABLE 2447PROTOTYPES: DISABLE
2448
2449MODULE = IO::AIO PACKAGE = IO::AIO::WD
2450
2451BOOT:
2452{
2453 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2454 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2455}
2456
2457void
2458DESTROY (SV *self)
2459 CODE:
2460{
2461 aio_wd wd = SvAIO_WD (self);
2462#if HAVE_AT
2463 {
2464 SV *callback = &PL_sv_undef;
2465 dREQ; /* clobbers next_pri :/ */
2466 next_pri = req->pri; /* restore next_pri */
2467 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2468 req->type = EIO_WD_CLOSE;
2469 req->wd = wd;
2470 REQ_SEND;
2471 }
2472#else
2473 eio_wd_close_sync (wd);
2474#endif
2475}
1446 2476
1447MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2477MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1448 2478
1449void 2479void
1450cancel (aio_req_ornot req) 2480cancel (aio_req_ornot req)
1451 CODE: 2481 CODE:
1452 req_cancel (req); 2482 eio_cancel (req);
1453 2483
1454void 2484void
1455cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2485cb (aio_req_ornot req, SV *callback = NO_INIT)
1456 CODE: 2486 PPCODE:
2487{
2488 if (GIMME_V != G_VOID)
2489 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2490
2491 if (items > 1)
2492 {
2493 SV *cb_cv = get_cb (callback);
2494
1457 SvREFCNT_dec (req->callback); 2495 SvREFCNT_dec (req->callback);
1458 req->callback = newSVsv (callback); 2496 req->callback = SvREFCNT_inc (cb_cv);
2497 }
2498}
1459 2499
1460MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2500MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1461 2501
1462void 2502void
1463add (aio_req grp, ...) 2503add (aio_req grp, ...)
1464 PPCODE: 2504 PPCODE:
1465{ 2505{
1466 int i; 2506 int i;
1467 aio_req req;
1468 2507
1469 if (grp->fd == 2) 2508 if (grp->int1 == 2)
1470 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2509 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1471 2510
1472 for (i = 1; i < items; ++i ) 2511 for (i = 1; i < items; ++i )
1473 { 2512 {
2513 aio_req req;
2514
1474 if (GIMME_V != G_VOID) 2515 if (GIMME_V != G_VOID)
1475 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2516 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1476 2517
1477 req = SvAIO_REQ (ST (i)); 2518 req = SvAIO_REQ (ST (i));
1478 2519
1479 if (req) 2520 if (req)
1480 { 2521 eio_grp_add (grp, req);
1481 ++grp->length;
1482 req->grp = grp;
1483
1484 req->grp_prev = 0;
1485 req->grp_next = grp->grp_first;
1486
1487 if (grp->grp_first)
1488 grp->grp_first->grp_prev = req;
1489
1490 grp->grp_first = req;
1491 }
1492 } 2522 }
1493} 2523}
1494 2524
1495void 2525void
1496cancel_subs (aio_req_ornot req) 2526cancel_subs (aio_req_ornot req)
… …
1500void 2530void
1501result (aio_req grp, ...) 2531result (aio_req grp, ...)
1502 CODE: 2532 CODE:
1503{ 2533{
1504 int i; 2534 int i;
2535 AV *av;
2536
2537 grp->errorno = errno;
2538
1505 AV *av = newAV (); 2539 av = newAV ();
2540 av_extend (av, items - 1);
1506 2541
1507 for (i = 1; i < items; ++i ) 2542 for (i = 1; i < items; ++i )
1508 av_push (av, newSVsv (ST (i))); 2543 av_push (av, newSVsv (ST (i)));
1509 2544
1510 SvREFCNT_dec (grp->data); 2545 SvREFCNT_dec (grp->sv1);
1511 grp->data = (SV *)av; 2546 grp->sv1 = (SV *)av;
1512} 2547}
2548
2549void
2550errno (aio_req grp, int errorno = errno)
2551 CODE:
2552 grp->errorno = errorno;
1513 2553
1514void 2554void
1515limit (aio_req grp, int limit) 2555limit (aio_req grp, int limit)
1516 CODE: 2556 CODE:
1517 grp->fd2 = limit; 2557 eio_grp_limit (grp, limit);
1518 aio_grp_feed (grp);
1519 2558
1520void 2559void
1521feed (aio_req grp, SV *callback=&PL_sv_undef) 2560feed (aio_req grp, SV *callback = &PL_sv_undef)
1522 CODE: 2561 CODE:
1523{ 2562{
1524 SvREFCNT_dec (grp->fh2); 2563 SvREFCNT_dec (grp->sv2);
1525 grp->fh2 = newSVsv (callback); 2564 grp->sv2 = newSVsv (callback);
2565 grp->feed = aio_grp_feed;
1526 2566
1527 if (grp->fd2 <= 0) 2567 if (grp->int2 <= 0)
1528 grp->fd2 = 2; 2568 grp->int2 = 2;
1529 2569
1530 aio_grp_feed (grp); 2570 eio_grp_limit (grp, grp->int2);
1531} 2571}
1532 2572

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