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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.72 by root, Tue Oct 24 17:22:17 2006 UTC vs.
Revision 1.264 by root, Tue Aug 14 11:44:52 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_SYSMACROS_H
33# if __linux
34# include <sys/sendfile.h>
35# elif __freebsd
36# include <sys/socket.h> 24# include <sys/sysmacros.h>
25#endif
26
27#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
37# include <sys/uio.h> 28# include <sys/mman.h>
38# elif __hpux 29#endif
30
31/* the incompetent fool that created musl keeps __linux__, refuses
32 * to implement any linux standard apis, and also has no way to test
33 * for his broken iplementation. don't complain to me if this fails
34 * for you.
35 */
36#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
37# include <linux/fs.h>
38# ifdef FS_IOC_FIEMAP
39# include <linux/types.h>
40# include <linux/fiemap.h>
41# define HAVE_FIEMAP 1
42# endif
43#endif
44
45/* perl namespace pollution */
46#undef VERSION
47
48/* perl stupidly overrides readdir and maybe others */
49/* with thread-unsafe versions, imagine that :( */
50#undef readdir
51#undef opendir
52#undef closedir
53
54#ifdef _WIN32
55
56 // perl overrides all those nice libc functions
57
58 #undef malloc
59 #undef free
60 #undef open
61 #undef read
62 #undef write
63 #undef send
64 #undef recv
65 #undef stat
66 #undef lstat
67 #undef fstat
68 #undef truncate
69 #undef ftruncate
70 #undef open
71 #undef link
72 #undef close
73 #undef unlink
74 #undef mkdir
75 #undef rmdir
76 #undef rename
77 #undef lseek
78 #undef opendir
79 #undef readdir
80 #undef closedir
81 #undef chmod
82 #undef fchmod
83 #undef dup
84 #undef dup2
85 #undef abort
86 #undef pipe
87
88 #define EIO_STRUCT_STAT struct _stati64
89 #define EIO_STRUCT_STATI64
90
91#else
92
39# include <sys/socket.h> 93 #include <sys/time.h>
40# elif __solaris /* not yet */
41# include <sys/sendfile.h> 94 #include <sys/select.h>
95 #include <unistd.h>
96 #include <utime.h>
97 #include <signal.h>
98
99 #define EIO_STRUCT_STAT Stat_t
100
101#endif
102
103/*****************************************************************************/
104
105#if __GNUC__ >= 3
106# define expect(expr,value) __builtin_expect ((expr),(value))
107#else
108# define expect(expr,value) (expr)
109#endif
110
111#define expect_false(expr) expect ((expr) != 0, 0)
112#define expect_true(expr) expect ((expr) != 0, 1)
113
114/*****************************************************************************/
115
116#include "config.h"
117
118#if HAVE_ST_XTIMENSEC
119# define ATIMENSEC PL_statcache.st_atimensec
120# define MTIMENSEC PL_statcache.st_mtimensec
121# define CTIMENSEC PL_statcache.st_ctimensec
122#elif HAVE_ST_XTIMESPEC
123# define ATIMENSEC PL_statcache.st_atim.tv_nsec
124# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
125# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
126#else
127# define ATIMENSEC 0
128# define MTIMENSEC 0
129# define CTIMENSEC 0
130#endif
131
132#include "schmorp.h"
133
134#if HAVE_EVENTFD
135# include <sys/eventfd.h>
136#endif
137
138#if HAVE_TIMERFD
139# include <sys/timerfd.h>
140#endif
141
142#if HAVE_RLIMITS
143 #include <sys/time.h>
144 #include <sys/resource.h>
145#endif
146
147typedef SV SV8; /* byte-sv, used for argument-checking */
148typedef int aio_rfd; /* read file desriptor */
149typedef int aio_wfd; /* write file descriptor */
150
151static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
152
153#define EIO_REQ_MEMBERS \
154 SV *callback; \
155 SV *sv1, *sv2; \
156 SV *sv3, *sv4; \
157 STRLEN stroffset; \
158 SV *self;
159
160#define EIO_NO_WRAPPERS 1
161
162#include "libeio/eio.h"
163
164static int req_invoke (eio_req *req);
165#define EIO_FINISH(req) req_invoke (req)
166static void req_destroy (eio_req *grp);
167#define EIO_DESTROY(req) req_destroy (req)
168
169#include "libeio/eio.c"
170
171#if !HAVE_POSIX_FADVISE
172# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
173#endif
174
175#if !HAVE_POSIX_MADVISE
176# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
177#endif
178
179#ifndef MAP_ANONYMOUS
180# ifdef MAP_ANON
181# define MAP_ANONYMOUS MAP_ANON
42# else 182# else
43# error sendfile support requested but not available 183# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
44# endif 184# endif
45#endif 185#endif
46 186
47/* used for struct dirent, AIX doesn't provide it */ 187#ifndef makedev
48#ifndef NAME_MAX 188# define makedev(maj,min) (((maj) << 8) | (min))
49# define NAME_MAX 4096
50#endif 189#endif
51 190#ifndef major
52#if __ia64 191# 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 192#endif
193#ifndef minor
194# define minor(dev) ((dev) & 0xff)
195#endif
59 196
60/* buffer size for various temporary buffers */ 197#if PAGESIZE <= 0
61#define AIO_BUFSIZE 65536 198# define PAGESIZE sysconf (_SC_PAGESIZE)
199#endif
62 200
63#define dBUF \ 201/*****************************************************************************/
64 char *aio_buf; \ 202
65 LOCK (wrklock); \ 203#if !_POSIX_MAPPED_FILES
66 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 204# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
67 UNLOCK (wrklock); \ 205# define munmap(addr,length) EIO_ENOSYS ()
68 if (!aio_buf) \ 206#endif
207
208#if !_POSIX_MEMORY_PROTECTION
209# define mprotect(addr,len,prot) EIO_ENOSYS ()
210#endif
211
212#if !MREMAP_MAYMOVE
213# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
214#endif
215
216#define FOREIGN_MAGIC PERL_MAGIC_ext
217
218static int ecb_cold
219mmap_free (pTHX_ SV *sv, MAGIC *mg)
220{
221 int old_errno = errno;
222 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
223 errno = old_errno;
224
225 mg->mg_obj = 0; /* just in case */
226
227 SvREADONLY_off (sv);
228
229 if (SvPVX (sv) != mg->mg_ptr)
230 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
231
232 SvCUR_set (sv, 0);
233 SvPVX (sv) = 0;
234 SvOK_off (sv);
235
69 return -1; 236 return 0;
237}
70 238
71enum { 239static MGVTBL mmap_vtbl = {
72 REQ_QUIT, 240 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}; 241};
84 242
85#define AIO_REQ_KLASS "IO::AIO::REQ" 243static int ecb_cold
86#define AIO_GRP_KLASS "IO::AIO::GRP" 244sysfree_free (pTHX_ SV *sv, MAGIC *mg)
87
88typedef struct aio_cb
89{ 245{
90 struct aio_cb *volatile next; 246 free (mg->mg_ptr);
247 mg->mg_obj = 0; /* just in case */
91 248
92 SV *data, *callback; 249 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;
99 250
100 STRLEN dataoffset; 251 if (SvPVX (sv) != mg->mg_ptr)
101 int type; 252 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
102 int fd, fd2;
103 int errorno;
104 mode_t mode; /* open */
105 253
106 unsigned char flags; 254 SvCUR_set (sv, 0);
107 unsigned char pri; 255 SvPVX (sv) = 0;
256 SvOK_off (sv);
108 257
109 SV *self; /* the perl counterpart of this request, if any */ 258 return 0;
110 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 259}
111} aio_cb;
112 260
113enum { 261static MGVTBL sysfree_vtbl = {
114 FLAG_CANCELLED = 0x01, 262 0, 0, 0, 0, sysfree_free
115}; 263};
116 264
117typedef aio_cb *aio_req; 265/*****************************************************************************/
118typedef aio_cb *aio_req_ornot;
119 266
120enum { 267/* helper: set scalar to foreign ptr with custom free */
121 PRI_MIN = -4, 268static void
122 PRI_MAX = 4, 269sv_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 max_outstanding = 1<<30;
134static int respipe [2];
135
136#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
137# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
138#else
139# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
140#endif
141
142#define LOCK(mutex) pthread_mutex_lock (&(mutex))
143#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
144
145/* worker threasd management */
146static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
147
148typedef struct worker {
149 /* locked by wrklock */
150 struct worker *prev, *next;
151
152 pthread_t tid;
153
154 /* locked by reslock, reqlock or wrklock */
155 aio_req req; /* currently processed request */
156 void *dbuf;
157 DIR *dirp;
158} worker;
159
160static worker wrk_first = { &wrk_first, &wrk_first, 0 };
161
162static void worker_clear (worker *wrk)
163{ 270{
164 if (wrk->dirp) 271 sv_force_normal (sv);
272
273 /* we store the length in mg_obj, as namlen is I32 :/ */
274 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
275 ->mg_obj = (SV *)length;
276
277 SvUPGRADE (sv, SVt_PV); /* nop... */
278
279 if (SvLEN (sv))
280 Safefree (SvPVX (sv));
281
282 SvPVX (sv) = (char *)addr;
283 SvCUR_set (sv, length);
284 SvLEN_set (sv, 0);
285 SvPOK_only (sv);
286}
287
288static void
289sv_clear_foreign (SV *sv)
290{
291 /* todo: iterate over magic and only free ours, but of course */
292 /* the perl5porters will call that (correct) behaviour buggy */
293 sv_unmagic (sv, FOREIGN_MAGIC);
294}
295
296/*****************************************************************************/
297
298/* defines all sorts of constants to 0 unless they are already defined */
299/* also provides const_iv_ and const_niv_ macros for them */
300#include "def0.h"
301
302/*****************************************************************************/
303
304static void
305fiemap (eio_req *req)
306{
307 req->result = -1;
308
309#if HAVE_FIEMAP
310 /* assume some c99 */
311 struct fiemap *fiemap = 0;
312 size_t end_offset;
313 int count = req->int3;
314
315 req->flags |= EIO_FLAG_PTR1_FREE;
316
317 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
318 /* increase in 3.5kb steps */
319 if (count < 0)
320 count = 8;
321
322 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
323 errno = ENOMEM;
324 if (!fiemap)
325 return;
326
327 req->ptr1 = fiemap;
328
329 fiemap->fm_start = req->offs;
330 fiemap->fm_length = req->size;
331 fiemap->fm_flags = req->int2;
332 fiemap->fm_extent_count = count;
333
334 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
335 return;
336
337 if (req->int3 >= 0 /* not autosizing */
338 || !fiemap->fm_mapped_extents /* no more extents */
339 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
340 goto done;
341
342 /* else we have to loop -
343 * it would be tempting (actually I tried that first) to just query the
344 * number of extents needed, but linux often feels like not returning all
345 * extents, without telling us it left any out. this complicates
346 * this quite a bit.
347 */
348
349 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
350
351 for (;;)
165 { 352 {
166 closedir (wrk->dirp); 353 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
167 wrk->dirp = 0; 354 char scratch[3072];
168 } 355 struct fiemap *incmap = (struct fiemap *)scratch;
169 356
170 if (wrk->dbuf) 357 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
171 { 358 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
172 free (wrk->dbuf); 359 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
173 wrk->dbuf = 0; 360 incmap->fm_flags = fiemap->fm_flags;
174 } 361 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
175}
176 362
177static void worker_free (worker *wrk) 363 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
178{
179 wrk->next->prev = wrk->prev;
180 wrk->prev->next = wrk->next;
181
182 free (wrk);
183}
184
185static pthread_mutex_t reslock = AIO_MUTEX_INIT;
186static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
187static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
188
189/*
190 * a somewhat faster data structure might be nice, but
191 * with 8 priorities this actually needs <20 insns
192 * per shift, the most expensive operation.
193 */
194typedef struct {
195 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
196 int size;
197} reqq;
198
199static reqq req_queue;
200static reqq res_queue;
201
202int reqq_push (reqq *q, aio_req req)
203{
204 int pri = req->pri;
205 req->next = 0;
206
207 if (q->qe[pri])
208 {
209 q->qe[pri]->next = req;
210 q->qe[pri] = req;
211 }
212 else
213 q->qe[pri] = q->qs[pri] = req;
214
215 return q->size++;
216}
217
218aio_req reqq_shift (reqq *q)
219{
220 int pri;
221
222 if (!q->size)
223 return 0; 364 return;
224 365
225 --q->size; 366 if (!incmap->fm_mapped_extents)
367 goto done;
226 368
227 for (pri = NUM_PRI; pri--; ) 369 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
228 { 370 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
229 aio_req req = q->qs[pri]; 371 errno = ENOMEM;
230
231 if (req) 372 if (!fiemap)
373 return;
374
375 req->ptr1 = fiemap;
376
377 for (count = 0; count < incmap->fm_mapped_extents; ++count)
232 { 378 {
233 if (!(q->qs[pri] = req->next)) 379 struct fiemap_extent *e = incmap->fm_extents + count;
234 q->qe[pri] = 0;
235 380
236 return req; 381 if (e->fe_logical + e->fe_length >= end_offset)
382 goto done;
383
384 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
385
386 if (e->fe_flags & FIEMAP_EXTENT_LAST)
387 goto done;
388
237 } 389 }
238 } 390 }
239 391
240 abort (); 392done:
241} 393 req->result = 0;
242 394
243static void req_invoke (aio_req req); 395#else
396 errno = ENOSYS;
397#endif
398}
399
400/*****************************************************************************/
401
402enum {
403 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
404};
405
406typedef eio_req *aio_req;
407typedef eio_req *aio_req_ornot;
408typedef eio_wd aio_wd;
409
410static SV *on_next_submit;
411static int next_pri = EIO_PRI_DEFAULT;
412static int max_outstanding;
413
414static s_epipe respipe;
415
244static void req_free (aio_req req); 416static void req_destroy (aio_req req);
245static void req_cancel (aio_req req); 417static void req_cancel (aio_req req);
246 418
419static void
420want_poll (void)
421{
422 /* write a dummy byte to the pipe so fh becomes ready */
423 s_epipe_signal (&respipe);
424}
425
426static void
427done_poll (void)
428{
429 /* read any signals sent by the worker threads */
430 s_epipe_drain (&respipe);
431}
432
247/* must be called at most once */ 433/* must be called at most once */
248static SV *req_sv (aio_req req, const char *klass) 434static SV *
435req_sv (aio_req req, HV *stash)
249{ 436{
250 if (!req->self) 437 if (!req->self)
251 { 438 {
252 req->self = (SV *)newHV (); 439 req->self = (SV *)newHV ();
253 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 440 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
254 } 441 }
255 442
256 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 443 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
257} 444}
258 445
259static aio_req SvAIO_REQ (SV *sv) 446static SV *
447newSVaio_wd (aio_wd wd)
448{
449 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
450}
451
452static aio_req
453SvAIO_REQ (SV *sv)
260{ 454{
261 MAGIC *mg; 455 MAGIC *mg;
262 456
263 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 457 if (!SvROK (sv)
458 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
459 || (SvSTASH (SvRV (sv)) != aio_grp_stash
460 && SvSTASH (SvRV (sv)) != aio_req_stash
461 && !sv_derived_from (sv, "IO::AIO::REQ")))
264 croak ("object of class " AIO_REQ_KLASS " expected"); 462 croak ("object of class IO::AIO::REQ expected");
265 463
266 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 464 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
267 465
268 return mg ? (aio_req)mg->mg_ptr : 0; 466 return mg ? (aio_req)mg->mg_ptr : 0;
269} 467}
270 468
469static aio_wd
470SvAIO_WD (SV *sv)
471{
472 if (!SvROK (sv)
473 || SvTYPE (SvRV (sv)) != SVt_PVMG
474 || SvSTASH (SvRV (sv)) != aio_wd_stash)
475 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
476
477 return (aio_wd)(long)SvIVX (SvRV (sv));
478}
479
480static SV *
481newmortalFH (int fd, int flags)
482{
483 if (fd < 0)
484 return &PL_sv_undef;
485
486 GV *gv = (GV *)sv_newmortal ();
487 char sym[64];
488 int symlen;
489
490 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
491 gv_init (gv, aio_stash, sym, symlen, 0);
492
493 symlen = snprintf (
494 sym,
495 sizeof (sym),
496 "%s&=%d",
497 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
498 fd
499 );
500
501 return do_open (gv, sym, symlen, 0, 0, 0, 0)
502 ? (SV *)gv : &PL_sv_undef;
503}
504
505static void
271static void aio_grp_feed (aio_req grp) 506aio_grp_feed (aio_req grp)
272{ 507{
273 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 508 if (grp->sv2 && SvOK (grp->sv2))
274 { 509 {
275 int old_len = grp->length;
276
277 if (grp->fh2 && SvOK (grp->fh2))
278 {
279 dSP; 510 dSP;
280 511
281 ENTER; 512 ENTER;
282 SAVETMPS; 513 SAVETMPS;
283 PUSHMARK (SP); 514 PUSHMARK (SP);
284 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 515 XPUSHs (req_sv (grp, aio_grp_stash));
285 PUTBACK; 516 PUTBACK;
286 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 517 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
287 SPAGAIN; 518 SPAGAIN;
288 FREETMPS; 519 FREETMPS;
289 LEAVE; 520 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 } 521 }
300} 522}
301 523
302static void aio_grp_dec (aio_req grp) 524static void
525req_submit (eio_req *req)
303{ 526{
304 --grp->length; 527 eio_submit (req);
305 528
306 /* call feeder, if applicable */ 529 if (expect_false (on_next_submit))
307 aio_grp_feed (grp);
308
309 /* finish, if done */
310 if (!grp->length && grp->fd)
311 { 530 {
312 req_invoke (grp); 531 dSP;
313 req_free (grp); 532 SV *cb = sv_2mortal (on_next_submit);
533
534 on_next_submit = 0;
535
536 PUSHMARK (SP);
537 PUTBACK;
538 call_sv (cb, G_DISCARD | G_EVAL);
314 } 539 }
315} 540}
316 541
317static void poll_wait () 542static int
543req_invoke (eio_req *req)
318{ 544{
319 fd_set rfd; 545 if (req->flags & FLAG_SV2_RO_OFF)
546 SvREADONLY_off (req->sv2);
320 547
321 while (nreqs) 548 if (!EIO_CANCELLED (req) && req->callback)
322 { 549 {
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; 550 dSP;
345 551 static SV *sv_result_cache; /* caches the result integer SV */
346 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 552 SV *sv_result;
347 {
348 errno = req->errorno;
349 553
350 ENTER; 554 ENTER;
351 SAVETMPS; 555 SAVETMPS;
352 PUSHMARK (SP); 556 PUSHMARK (SP);
353 EXTEND (SP, 1); 557 EXTEND (SP, 1);
354 558
559 /* do not recreate the result IV from scratch each time */
560 if (expect_true (sv_result_cache))
561 {
562 sv_result = sv_result_cache; sv_result_cache = 0;
563 SvIV_set (sv_result, req->result);
564 SvIOK_only (sv_result);
565 }
566 else
567 {
568 sv_result = newSViv (req->result);
569 SvREADONLY_on (sv_result);
570 }
571
355 switch (req->type) 572 switch (req->type)
356 { 573 {
574 case EIO_WD_OPEN:
575 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
576 break;
577
357 case REQ_READDIR: 578 case EIO_READDIR:
358 { 579 {
359 SV *rv = &PL_sv_undef; 580 SV *rv = &PL_sv_undef;
360 581
361 if (req->result >= 0) 582 if (req->result >= 0)
362 { 583 {
363 int i; 584 int i;
364 char *buf = req->data2ptr; 585 char *names = (char *)req->ptr2;
586 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
365 AV *av = newAV (); 587 AV *av = newAV ();
366 588
367 av_extend (av, req->result - 1); 589 av_extend (av, req->result - 1);
368 590
369 for (i = 0; i < req->result; ++i) 591 for (i = 0; i < req->result; ++i)
370 { 592 {
371 SV *sv = newSVpv (buf, 0); 593 if (req->int1 & EIO_READDIR_DENTS)
594 {
595 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
372 596
597 if (req->int1 & EIO_READDIR_CUSTOM2)
598 {
599 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
600 AV *avent = newAV ();
601
602 av_extend (avent, 2);
603
604 if (!sv_type [ent->type])
605 {
606 sv_type [ent->type] = newSViv (ent->type);
607 SvREADONLY_on (sv_type [ent->type]);
608 }
609
610 av_store (avent, 0, namesv);
611 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
612 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
613
614 av_store (av, i, newRV_noinc ((SV *)avent));
615 }
616 else
373 av_store (av, i, sv); 617 av_store (av, i, namesv);
618
619 ++ent;
620 }
621 else
622 {
623 SV *name = newSVpv (names, 0);
624 av_store (av, i, name);
374 buf += SvCUR (sv) + 1; 625 names += SvCUR (name) + 1;
626 }
375 } 627 }
376 628
377 rv = sv_2mortal (newRV_noinc ((SV *)av)); 629 rv = sv_2mortal (newRV_noinc ((SV *)av));
378 } 630 }
379 631
380 PUSHs (rv); 632 PUSHs (rv);
633
634 if (req->int1 & EIO_READDIR_CUSTOM1)
635 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
381 } 636 }
382 break; 637 break;
383 638
384 case REQ_OPEN: 639 case EIO_OPEN:
640 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
641 break;
642
643 case EIO_STATVFS:
644 case EIO_FSTATVFS:
385 { 645 {
386 /* convert fd to fh */ 646 SV *rv = &PL_sv_undef;
387 SV *fh; 647
648#ifndef _WIN32
649 if (req->result >= 0)
650 {
651 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
652 HV *hv = newHV ();
653 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
654 * chooses to make it a struct.
655 */
656 unsigned long fsid = 0;
657 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
388 658
389 PUSHs (sv_2mortal (newSViv (req->result))); 659 rv = sv_2mortal (newRV_noinc ((SV *)hv));
390 PUTBACK;
391 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
392 SPAGAIN;
393 660
394 fh = SvREFCNT_inc (POPs); 661 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
662 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
663 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
664 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
665 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
666 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
667 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
668 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
669 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
670 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
671 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
672 }
673#endif
395 674
396 PUSHMARK (SP); 675 PUSHs (rv);
397 XPUSHs (sv_2mortal (fh));
398 } 676 }
677
399 break; 678 break;
400 679
401 case REQ_GROUP: 680 case EIO_GROUP:
402 req->fd = 2; /* mark group as finished */ 681 req->int1 = 2; /* mark group as finished */
403 682
404 if (req->data) 683 if (req->sv1)
405 { 684 {
406 int i; 685 int i;
407 AV *av = (AV *)req->data; 686 AV *av = (AV *)req->sv1;
408 687
409 EXTEND (SP, AvFILL (av) + 1); 688 EXTEND (SP, AvFILL (av) + 1);
410 for (i = 0; i <= AvFILL (av); ++i) 689 for (i = 0; i <= AvFILL (av); ++i)
411 PUSHs (*av_fetch (av, i, 0)); 690 PUSHs (*av_fetch (av, i, 0));
412 } 691 }
413 break; 692 break;
414 693
415 case REQ_NOP: 694 case EIO_NOP:
416 case REQ_BUSY: 695 case EIO_BUSY:
417 break; 696 break;
418 697
698 case EIO_READLINK:
699 case EIO_REALPATH:
700 if (req->result > 0)
701 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
702 break;
703
704 case EIO_STAT:
705 case EIO_LSTAT:
706 case EIO_FSTAT:
707 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
708
709 if (!(PL_laststatval = req->result))
710 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
711 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
712
713 PUSHs (sv_result);
714 break;
715
716 case EIO_SEEK:
717 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
718 break;
719
720 case EIO_READ:
721 {
722 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
723 *SvEND (req->sv2) = 0;
724 SvPOK_only (req->sv2);
725 SvSETMAGIC (req->sv2);
726 PUSHs (sv_result);
727 }
728 break;
729
730 case EIO_SLURP:
731 {
732 if (req->result >= 0)
733 {
734 /* if length was originally not known, we steal the malloc'ed memory */
735 if (req->flags & EIO_FLAG_PTR2_FREE)
736 {
737 req->flags &= ~EIO_FLAG_PTR2_FREE;
738 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
739 }
740 else
741 {
742 SvCUR_set (req->sv2, req->result);
743 *SvEND (req->sv2) = 0;
744 SvPOK_only (req->sv2);
745 }
746
747 SvSETMAGIC (req->sv2);
748 }
749
750 PUSHs (sv_result);
751 }
752 break;
753
754 case EIO_CUSTOM:
755 if (req->feed == fiemap)
756 {
757#if HAVE_FIEMAP
758 if (!req->result)
759 {
760 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
761
762 if (fiemap->fm_extent_count)
763 {
764 AV *av = newAV ();
765 int i;
766
767 while (fiemap->fm_mapped_extents)
768 {
769 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
770 AV *ext_av = newAV ();
771
772 av_store (ext_av, 3, newSVuv (extent->fe_flags));
773 av_store (ext_av, 2, newSVval64 (extent->fe_length));
774 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
775 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
776
777 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
778 }
779
780 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
781 }
782 else
783 {
784 SvIV_set (sv_result, fiemap->fm_mapped_extents);
785 PUSHs (sv_result);
786 }
787 }
788#endif
789 }
790 else
791 PUSHs (sv_result);
792 break;
793
794 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
795 if (req->result > 0)
796 SvIV_set (sv_result, 0);
797 /* FALLTHROUGH */
798
419 default: 799 default:
420 PUSHs (sv_2mortal (newSViv (req->result))); 800 PUSHs (sv_result);
421 break; 801 break;
422 } 802 }
423 803
804 errno = req->errorno;
424 805
425 PUTBACK; 806 PUTBACK;
426 call_sv (req->callback, G_VOID | G_EVAL); 807 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
427 SPAGAIN; 808 SPAGAIN;
809
810 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
811 SvREFCNT_dec (sv_result);
812 else
813 sv_result_cache = sv_result;
428 814
429 FREETMPS; 815 FREETMPS;
430 LEAVE; 816 LEAVE;
817
818 PUTBACK;
431 } 819 }
432 820
433 if (req->grp) 821 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} 822}
453 823
454static void req_free (aio_req req) 824static void
825req_destroy (aio_req req)
455{ 826{
456 if (req->self) 827 if (req->self)
457 { 828 {
458 sv_unmagic (req->self, PERL_MAGIC_ext); 829 sv_unmagic (req->self, PERL_MAGIC_ext);
459 SvREFCNT_dec (req->self); 830 SvREFCNT_dec (req->self);
460 } 831 }
461 832
462 SvREFCNT_dec (req->data);
463 SvREFCNT_dec (req->fh); 833 SvREFCNT_dec (req->sv1);
464 SvREFCNT_dec (req->fh2); 834 SvREFCNT_dec (req->sv2);
835 SvREFCNT_dec (req->sv3);
836 SvREFCNT_dec (req->sv4);
465 SvREFCNT_dec (req->callback); 837 SvREFCNT_dec (req->callback);
466 Safefree (req->statdata);
467 838
468 if (req->type == REQ_READDIR)
469 free (req->data2ptr);
470
471 Safefree (req); 839 free (req);
472} 840}
473 841
842static void
474static void req_cancel_subs (aio_req grp) 843req_cancel_subs (aio_req grp)
475{ 844{
476 aio_req sub;
477
478 if (grp->type != REQ_GROUP) 845 if (grp->type != EIO_GROUP)
479 return; 846 return;
480 847
481 SvREFCNT_dec (grp->fh2); 848 SvREFCNT_dec (grp->sv2);
482 grp->fh2 = 0; 849 grp->sv2 = 0;
483 850
484 for (sub = grp->grp_first; sub; sub = sub->grp_next) 851 eio_grp_cancel (grp);
485 req_cancel (sub);
486} 852}
487 853
488static void req_cancel (aio_req req) 854static void ecb_cold
855create_respipe (void)
489{ 856{
490 req->flags |= FLAG_CANCELLED; 857 if (s_epipe_renew (&respipe))
491 858 croak ("IO::AIO: unable to initialize result pipe");
492 req_cancel_subs (req);
493} 859}
494 860
495static int poll_cb () 861static void
862poll_wait (void)
496{ 863{
497 dSP; 864 while (eio_nreqs ())
498 int count = 0; 865 {
499 int do_croak = 0; 866 int size;
500 aio_req req;
501 867
868 X_LOCK (EIO_POOL->reslock);
869 size = EIO_POOL->res_queue.size;
870 X_UNLOCK (EIO_POOL->reslock);
871
872 if (size)
873 return;
874
875 etp_maybe_start_thread (EIO_POOL);
876
877 s_epipe_wait (&respipe);
878 }
879}
880
881static int
882poll_cb (void)
883{
502 for (;;) 884 for (;;)
503 { 885 {
504 LOCK (reslock); 886 int res = eio_poll ();
505 req = reqq_shift (&res_queue);
506 887
507 if (req) 888 if (res > 0)
889 croak (0);
890
891 if (!max_outstanding || max_outstanding > eio_nreqs ())
892 return res;
893
894 poll_wait ();
895 }
896}
897
898static void ecb_cold
899reinit (void)
900{
901 create_respipe ();
902
903 if (eio_init (want_poll, done_poll) < 0)
904 croak ("IO::AIO: unable to initialise eio library");
905}
906
907/*****************************************************************************/
908
909static SV *
910get_cb (SV *cb_sv)
911{
912 SvGETMAGIC (cb_sv);
913 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
914}
915
916static aio_req ecb_noinline
917dreq (SV *callback)
918{
919 SV *cb_cv;
920 aio_req req;
921 int req_pri = next_pri;
922 next_pri = EIO_PRI_DEFAULT;
923
924 cb_cv = get_cb (callback);
925
926 req = calloc (sizeof (*req), 1);
927 if (!req)
928 croak ("out of memory during eio_req allocation");
929
930 req->callback = SvREFCNT_inc (cb_cv);
931 req->pri = req_pri;
932
933 return req;
934}
935
936#define dREQ \
937 aio_req req = dreq (callback); \
938
939#define REQ_SEND \
940 PUTBACK; \
941 req_submit (req); \
942 SPAGAIN; \
943 \
944 if (GIMME_V != G_VOID) \
945 XPUSHs (req_sv (req, aio_req_stash));
946
947ecb_inline void
948req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
949{
950 if (expect_false (SvROK (path)))
951 {
952 SV *rv = SvRV (path);
953 SV *wdob;
954
955 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
508 { 956 {
509 if (!res_queue.size) 957 path = AvARRAY (rv)[1];
958 wdob = AvARRAY (rv)[0];
959
960 if (SvOK (wdob))
510 { 961 {
511 /* read any signals sent by the worker threads */ 962 *wd = SvAIO_WD (wdob);
512 char buf [32]; 963 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
513 while (read (respipe [0], buf, 32) == 32)
514 ;
515 } 964 }
965 else
966 *wd = EIO_INVALID_WD;
516 } 967 }
517 968 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 { 969 {
529 req->fd = 1; /* mark request as delayed */ 970 *wd = (aio_wd)(long)SvIVX (rv);
530 continue; 971 *wdsv = SvREFCNT_inc_NN (rv);
972 *ptr = ".";
973 return; /* path set to "." */
531 } 974 }
532 else 975 else
533 { 976 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 } 977 }
554 978
555 return count; 979 *pathsv = newSVsv (path);
980 *ptr = SvPVbyte_nolen (*pathsv);
556} 981}
557 982
558static void *aio_proc(void *arg); 983static void ecb_noinline
559 984req_set_path1 (aio_req req, SV *path)
560static void start_thread (void)
561{ 985{
562 worker *wrk = calloc (1, sizeof (worker)); 986 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
987}
563 988
564 if (!wrk) 989static void ecb_noinline
565 croak ("unable to allocate worker thread data"); 990req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
991{
992 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
566 993
567 sigset_t fullsigset, oldsigset; 994 switch (SvTYPE (rv))
568 pthread_attr_t attr;
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 { 995 {
581 wrk->prev = &wrk_first; 996 case SVt_PVIO:
582 wrk->next = wrk_first.next; 997 case SVt_PVLV:
583 wrk_first.next->prev = wrk; 998 case SVt_PVGV:
584 wrk_first.next = wrk; 999 req->type = type_fh;
585 started++; 1000 req->sv1 = newSVsv (fh_or_path);
1001 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1002 break;
1003
1004 default:
1005 req->type = type_path;
1006 req_set_path1 (req, fh_or_path);
1007 break;
586 } 1008 }
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 if (nreqs > max_outstanding)
607 for (;;)
608 {
609 poll_cb ();
610
611 if (nreqs <= max_outstanding)
612 break;
613
614 poll_wait ();
615 }
616}
617
618static void end_thread (void)
619{
620 aio_req req;
621
622 Newz (0, req, 1, aio_cb);
623
624 req->type = REQ_QUIT;
625 req->pri = PRI_MAX + PRI_BIAS;
626
627 req_send (req);
628}
629
630static void min_parallel (int nthreads)
631{
632 if (wanted < nthreads)
633 wanted = nthreads;
634}
635
636static void max_parallel (int nthreads)
637{
638 int cur = started;
639
640 if (wanted > nthreads)
641 wanted = nthreads;
642
643 while (cur > wanted)
644 {
645 end_thread ();
646 cur--;
647 }
648
649 while (started > wanted)
650 {
651 poll_wait ();
652 poll_cb ();
653 }
654}
655
656static void create_pipe ()
657{
658 if (pipe (respipe))
659 croak ("unable to initialize result pipe");
660
661 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
662 croak ("cannot set result pipe to nonblocking mode");
663
664 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
665 croak ("cannot set result pipe to nonblocking mode");
666} 1009}
667 1010
668/*****************************************************************************/ 1011/*****************************************************************************/
669/* work around various missing functions */
670 1012
671#if !HAVE_PREADWRITE 1013static void
672# define pread aio_pread 1014ts_set (struct timespec *ts, NV value)
673# define pwrite aio_pwrite
674
675/*
676 * make our pread/pwrite safe against themselves, but not against
677 * normal read/write by using a mutex. slows down execution a lot,
678 * but that's your problem, not mine.
679 */
680static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
681
682static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
683{ 1015{
684 ssize_t res; 1016 ts->tv_sec = value;
685 off_t ooffset; 1017 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
686
687 LOCK (preadwritelock);
688 ooffset = lseek (fd, 0, SEEK_CUR);
689 lseek (fd, offset, SEEK_SET);
690 res = read (fd, buf, count);
691 lseek (fd, ooffset, SEEK_SET);
692 UNLOCK (preadwritelock);
693
694 return res;
695} 1018}
696 1019
697static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1020static NV
1021ts_get (const struct timespec *ts)
698{ 1022{
699 ssize_t res; 1023 return ts->tv_sec + ts->tv_nsec * 1e-9;
700 off_t ooffset;
701
702 LOCK (preadwritelock);
703 ooffset = lseek (fd, 0, SEEK_CUR);
704 lseek (fd, offset, SEEK_SET);
705 res = write (fd, buf, count);
706 lseek (fd, offset, SEEK_SET);
707 UNLOCK (preadwritelock);
708
709 return res;
710} 1024}
711#endif
712 1025
713#if !HAVE_FDATASYNC 1026/*****************************************************************************/
714# define fdatasync fsync
715#endif
716 1027
717#if !HAVE_READAHEAD 1028XS(boot_IO__AIO) ecb_cold;
718# define readahead aio_readahead
719 1029
720static ssize_t readahead (int fd, off_t offset, size_t count) 1030MODULE = IO::AIO PACKAGE = IO::AIO
721{
722 dBUF;
723 1031
724 while (count > 0) 1032PROTOTYPES: ENABLE
725 {
726 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
727 1033
728 pread (fd, aio_buf, len, offset); 1034BOOT:
729 offset += len;
730 count -= len;
731 }
732
733 errno = 0;
734}
735#endif
736
737#if !HAVE_READDIR_R
738# define readdir_r aio_readdir_r
739
740static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
741
742static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
743{ 1035{
744 struct dirent *e; 1036 static const struct {
745 int errorno; 1037 const char *name;
1038 IV iv;
1039 } *civ, const_iv[] = {
1040# define const_niv(name, value) { # name, (IV) value },
1041# define const_iv(name) { # name, (IV) name },
1042# define const_eio(name) { # name, (IV) EIO_ ## name },
746 1043
747 LOCK (readdirlock); 1044 /* you have to re-run ./gendef0 after adding/removing any constants here */
1045 /* the first block can be undef if missing */
1046 const_iv (ENOSYS)
1047 const_iv (EXDEV)
1048 const_iv (EBADR)
748 1049
749 e = readdir (dirp); 1050 /* for lseek */
750 errorno = errno; 1051 const_iv (SEEK_DATA)
1052 const_iv (SEEK_HOLE)
751 1053
752 if (e) 1054 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
753 { 1055 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
754 *res = ent; 1056 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
755 strcpy (ent->d_name, e->d_name); 1057 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
756 } 1058 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
757 else 1059 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
758 *res = 0;
759 1060
760 UNLOCK (readdirlock); 1061 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1062 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1063 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1064 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1065 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
761 1066
762 errno = errorno; 1067 /* the second block will be 0 when missing */
763 return e ? 0 : -1; 1068 const_iv (O_ACCMODE)
764}
765#endif
766 1069
767/* sendfile always needs emulation */ 1070 const_iv (O_RDONLY)
768static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) 1071 const_iv (O_WRONLY)
769{ 1072 const_iv (O_RDWR)
770 ssize_t res; 1073 const_iv (O_CREAT)
1074 const_iv (O_TRUNC)
1075 const_iv (O_EXCL)
1076 const_iv (O_APPEND)
771 1077
772 if (!count) 1078 const_iv (O_ASYNC)
773 return 0; 1079 const_iv (O_DIRECT)
1080 const_iv (O_NOATIME)
774 1081
775#if HAVE_SENDFILE 1082 const_iv (O_CLOEXEC)
776# if __linux 1083 const_iv (O_NOCTTY)
777 res = sendfile (ofd, ifd, &offset, count); 1084 const_iv (O_NOFOLLOW)
1085 const_iv (O_NONBLOCK)
1086 const_iv (O_EXEC)
1087 const_iv (O_SEARCH)
1088 const_iv (O_DIRECTORY)
1089 const_iv (O_DSYNC)
1090 const_iv (O_RSYNC)
1091 const_iv (O_SYNC)
1092 const_iv (O_PATH)
1093 const_iv (O_TMPFILE)
1094 const_iv (O_TTY_INIT)
778 1095
779# elif __freebsd 1096 const_iv (S_IFIFO)
780 /* 1097 const_iv (S_IFCHR)
781 * Of course, the freebsd sendfile is a dire hack with no thoughts 1098 const_iv (S_IFBLK)
782 * wasted on making it similar to other I/O functions. 1099 const_iv (S_IFLNK)
783 */ 1100 const_iv (S_IFREG)
784 { 1101 const_iv (S_IFDIR)
785 off_t sbytes; 1102 const_iv (S_IFWHT)
786 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0); 1103 const_iv (S_IFSOCK)
1104 const_iv (S_IFMT)
787 1105
788 if (res < 0 && sbytes) 1106 const_iv (ST_RDONLY)
789 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ 1107 const_iv (ST_NOSUID)
790 res = sbytes; 1108 const_iv (ST_NODEV)
1109 const_iv (ST_NOEXEC)
1110 const_iv (ST_SYNCHRONOUS)
1111 const_iv (ST_MANDLOCK)
1112 const_iv (ST_WRITE)
1113 const_iv (ST_APPEND)
1114 const_iv (ST_IMMUTABLE)
1115 const_iv (ST_NOATIME)
1116 const_iv (ST_NODIRATIME)
1117 const_iv (ST_RELATIME)
1118
1119 const_iv (PROT_NONE)
1120 const_iv (PROT_EXEC)
1121 const_iv (PROT_READ)
1122 const_iv (PROT_WRITE)
1123
1124 const_iv (MAP_PRIVATE)
1125 const_iv (MAP_SHARED)
1126 const_iv (MAP_FIXED)
1127 const_iv (MAP_ANONYMOUS)
1128
1129 /* linuxish */
1130 const_iv (MAP_LOCKED)
1131 const_iv (MAP_NORESERVE)
1132 const_iv (MAP_POPULATE)
1133 const_iv (MAP_NONBLOCK)
1134 const_iv (MAP_GROWSDOWN)
1135 const_iv (MAP_32BIT)
1136 const_iv (MAP_HUGETLB)
1137 const_iv (MAP_STACK)
1138
1139 const_iv (MREMAP_MAYMOVE)
1140 const_iv (MREMAP_FIXED)
1141
1142 const_iv (F_DUPFD_CLOEXEC)
1143
1144 const_iv (MSG_CMSG_CLOEXEC)
1145 const_iv (SOCK_CLOEXEC)
1146
1147 const_iv (F_OFD_GETLK)
1148 const_iv (F_OFD_SETLK)
1149 const_iv (F_OFD_GETLKW)
1150
1151 const_iv (FIFREEZE)
1152 const_iv (FITHAW)
1153 const_iv (FITRIM)
1154 const_iv (FICLONE)
1155 const_iv (FICLONERANGE)
1156 const_iv (FIDEDUPERANGE)
1157
1158 const_iv (FS_IOC_GETFLAGS)
1159 const_iv (FS_IOC_SETFLAGS)
1160 const_iv (FS_IOC_GETVERSION)
1161 const_iv (FS_IOC_SETVERSION)
1162 const_iv (FS_IOC_FIEMAP)
1163 const_iv (FS_IOC_FSGETXATTR)
1164 const_iv (FS_IOC_FSSETXATTR)
1165 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1166 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1167 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1168
1169 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1170
1171 const_iv (FS_SECRM_FL)
1172 const_iv (FS_UNRM_FL)
1173 const_iv (FS_COMPR_FL)
1174 const_iv (FS_SYNC_FL)
1175 const_iv (FS_IMMUTABLE_FL)
1176 const_iv (FS_APPEND_FL)
1177 const_iv (FS_NODUMP_FL)
1178 const_iv (FS_NOATIME_FL)
1179 const_iv (FS_DIRTY_FL)
1180 const_iv (FS_COMPRBLK_FL)
1181 const_iv (FS_NOCOMP_FL)
1182 const_iv (FS_ENCRYPT_FL)
1183 const_iv (FS_BTREE_FL)
1184 const_iv (FS_INDEX_FL)
1185 const_iv (FS_JOURNAL_DATA_FL)
1186 const_iv (FS_NOTAIL_FL)
1187 const_iv (FS_DIRSYNC_FL)
1188 const_iv (FS_TOPDIR_FL)
1189 const_iv (FS_FL_USER_MODIFIABLE)
1190
1191 const_iv (FS_XFLAG_REALTIME)
1192 const_iv (FS_XFLAG_PREALLOC)
1193 const_iv (FS_XFLAG_IMMUTABLE)
1194 const_iv (FS_XFLAG_APPEND)
1195 const_iv (FS_XFLAG_SYNC)
1196 const_iv (FS_XFLAG_NOATIME)
1197 const_iv (FS_XFLAG_NODUMP)
1198 const_iv (FS_XFLAG_RTINHERIT)
1199 const_iv (FS_XFLAG_PROJINHERIT)
1200 const_iv (FS_XFLAG_NOSYMLINKS)
1201 const_iv (FS_XFLAG_EXTSIZE)
1202 const_iv (FS_XFLAG_EXTSZINHERIT)
1203 const_iv (FS_XFLAG_NODEFRAG)
1204 const_iv (FS_XFLAG_FILESTREAM)
1205 const_iv (FS_XFLAG_DAX)
1206 const_iv (FS_XFLAG_HASATTR)
1207
1208 const_iv (FIEMAP_FLAG_SYNC)
1209 const_iv (FIEMAP_FLAG_XATTR)
1210 const_iv (FIEMAP_FLAGS_COMPAT)
1211 const_iv (FIEMAP_EXTENT_LAST)
1212 const_iv (FIEMAP_EXTENT_UNKNOWN)
1213 const_iv (FIEMAP_EXTENT_DELALLOC)
1214 const_iv (FIEMAP_EXTENT_ENCODED)
1215 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1216 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1217 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1218 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1219 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1220 const_iv (FIEMAP_EXTENT_MERGED)
1221 const_iv (FIEMAP_EXTENT_SHARED)
1222
1223 const_iv (SPLICE_F_MOVE)
1224 const_iv (SPLICE_F_NONBLOCK)
1225 const_iv (SPLICE_F_MORE)
1226 const_iv (SPLICE_F_GIFT)
1227
1228 const_iv (EFD_CLOEXEC)
1229 const_iv (EFD_NONBLOCK)
1230 const_iv (EFD_SEMAPHORE)
1231
1232 const_iv (CLOCK_REALTIME)
1233 const_iv (CLOCK_MONOTONIC)
1234 const_iv (CLOCK_BOOTTIME)
1235 const_iv (CLOCK_REALTIME_ALARM)
1236 const_iv (CLOCK_BOOTTIME_ALARM)
1237
1238 const_iv (TFD_NONBLOCK)
1239 const_iv (TFD_CLOEXEC)
1240
1241 const_iv (TFD_TIMER_ABSTIME)
1242 const_iv (TFD_TIMER_CANCEL_ON_SET)
1243
1244 /* these are libeio constants, and are independent of gendef0 */
1245 const_eio (SEEK_SET)
1246 const_eio (SEEK_CUR)
1247 const_eio (SEEK_END)
1248
1249 const_eio (MCL_FUTURE)
1250 const_eio (MCL_CURRENT)
1251
1252 const_eio (MS_ASYNC)
1253 const_eio (MS_INVALIDATE)
1254 const_eio (MS_SYNC)
1255
1256 const_eio (MT_MODIFY)
1257
1258 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1259 const_eio (SYNC_FILE_RANGE_WRITE)
1260 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1261
1262 const_eio (FALLOC_FL_KEEP_SIZE)
1263 const_eio (FALLOC_FL_PUNCH_HOLE)
1264 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1265 const_eio (FALLOC_FL_ZERO_RANGE)
1266 const_eio (FALLOC_FL_INSERT_RANGE)
1267 const_eio (FALLOC_FL_UNSHARE_RANGE)
1268
1269 const_eio (RENAME_NOREPLACE)
1270 const_eio (RENAME_EXCHANGE)
1271 const_eio (RENAME_WHITEOUT)
1272
1273 const_eio (READDIR_DENTS)
1274 const_eio (READDIR_DIRS_FIRST)
1275 const_eio (READDIR_STAT_ORDER)
1276 const_eio (READDIR_FOUND_UNKNOWN)
1277
1278 const_eio (DT_UNKNOWN)
1279 const_eio (DT_FIFO)
1280 const_eio (DT_CHR)
1281 const_eio (DT_DIR)
1282 const_eio (DT_BLK)
1283 const_eio (DT_REG)
1284 const_eio (DT_LNK)
1285 const_eio (DT_SOCK)
1286 const_eio (DT_WHT)
791 } 1287 };
792 1288
793# elif __hpux 1289 aio_stash = gv_stashpv ("IO::AIO" , 1);
794 res = sendfile (ofd, ifd, offset, count, 0, 0); 1290 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1291 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1292 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
795 1293
796# elif __solaris 1294 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
797 { 1295 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
798 struct sendfilevec vec;
799 size_t sbytes;
800 1296
801 vec.sfv_fd = ifd; 1297 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
802 vec.sfv_flag = 0;
803 vec.sfv_off = offset;
804 vec.sfv_len = count;
805 1298
806 res = sendfilev (ofd, &vec, 1, &sbytes); 1299 reinit ();
1300}
807 1301
808 if (res < 0 && sbytes) 1302void
1303reinit ()
1304 PROTOTYPE:
1305
1306void
1307max_poll_reqs (unsigned int nreqs)
1308 PROTOTYPE: $
1309 CODE:
1310 eio_set_max_poll_reqs (nreqs);
1311
1312void
1313max_poll_time (double nseconds)
1314 PROTOTYPE: $
1315 CODE:
1316 eio_set_max_poll_time (nseconds);
1317
1318void
1319min_parallel (unsigned int nthreads)
1320 PROTOTYPE: $
1321 CODE:
1322 eio_set_min_parallel (nthreads);
1323
1324void
1325max_parallel (unsigned int nthreads)
1326 PROTOTYPE: $
1327 CODE:
1328 eio_set_max_parallel (nthreads);
1329
1330void
1331max_idle (unsigned int nthreads)
1332 PROTOTYPE: $
1333 CODE:
1334 eio_set_max_idle (nthreads);
1335
1336void
1337idle_timeout (unsigned int seconds)
1338 PROTOTYPE: $
1339 CODE:
1340 eio_set_idle_timeout (seconds);
1341
1342void
1343max_outstanding (unsigned int maxreqs)
1344 PROTOTYPE: $
1345 CODE:
1346 max_outstanding = maxreqs;
1347
1348void
1349aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1350 PPCODE:
1351{
1352 dREQ;
1353
1354 req->type = EIO_WD_OPEN;
1355 req_set_path1 (req, pathname);
1356
1357 REQ_SEND;
1358}
1359
1360void
1361aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1362 PPCODE:
1363{
1364 dREQ;
1365
1366 req->type = EIO_OPEN;
1367 req_set_path1 (req, pathname);
1368 req->int1 = flags;
1369 req->int2 = mode;
1370
1371 REQ_SEND;
1372}
1373
1374void
1375aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1376 ALIAS:
1377 aio_fsync = EIO_FSYNC
1378 aio_fdatasync = EIO_FDATASYNC
1379 aio_syncfs = EIO_SYNCFS
1380 PPCODE:
1381{
1382 int fd = s_fileno_croak (fh, 0);
1383 dREQ;
1384
1385 req->type = ix;
1386 req->sv1 = newSVsv (fh);
1387 req->int1 = fd;
1388
1389 REQ_SEND;
1390}
1391
1392void
1393aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1394 PPCODE:
1395{
1396 int fd = s_fileno_croak (fh, 0);
1397 dREQ;
1398
1399 req->type = EIO_SYNC_FILE_RANGE;
1400 req->sv1 = newSVsv (fh);
1401 req->int1 = fd;
1402 req->offs = offset;
809 res = sbytes; 1403 req->size = nbytes;
810 } 1404 req->int2 = flags;
811 1405
812# endif 1406 REQ_SEND;
1407}
1408
1409void
1410aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1411 PPCODE:
1412{
1413 int fd = s_fileno_croak (fh, 0);
1414 dREQ;
1415
1416 req->type = EIO_FALLOCATE;
1417 req->sv1 = newSVsv (fh);
1418 req->int1 = fd;
1419 req->int2 = mode;
1420 req->offs = offset;
1421 req->size = len;
1422
1423 REQ_SEND;
1424}
1425
1426void
1427aio_close (SV *fh, SV *callback = &PL_sv_undef)
1428 PPCODE:
1429{
1430 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1431 int fd = s_fileno_croak (fh, 0);
1432 dREQ;
1433
1434 if (expect_false (close_fd < 0))
1435 {
1436 int pipefd [2];
1437
1438 if (
1439#ifdef _WIN32
1440 _pipe (pipefd, 1, _O_BINARY) < 0
813#else 1441#else
814 res = -1; 1442 pipe (pipefd) < 0
815 errno = ENOSYS; 1443 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
816#endif 1444#endif
817 1445 || close (pipefd [1]) < 0
818 if (res < 0
819 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
820#if __solaris
821 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
822#endif
823 )
824 )
825 {
826 /* emulate sendfile. this is a major pain in the ass */
827 dBUF;
828
829 res = 0;
830
831 while (count)
832 {
833 ssize_t cnt;
834
835 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
836
837 if (cnt <= 0)
838 { 1446 )
839 if (cnt && !res) res = -1; 1447 abort (); /*D*/
840 break;
841 }
842 1448
843 cnt = write (ofd, aio_buf, cnt); 1449 close_fd = pipefd [0];
844
845 if (cnt <= 0)
846 {
847 if (cnt && !res) res = -1;
848 break;
849 }
850
851 offset += cnt;
852 res += cnt;
853 count -= cnt;
854 }
855 }
856
857 return res;
858}
859
860/* read a full directory */
861static void scandir_ (aio_req req, worker *self)
862{
863 DIR *dirp;
864 union
865 {
866 struct dirent d;
867 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
868 } *u;
869 struct dirent *entp;
870 char *name, *names;
871 int memlen = 4096;
872 int memofs = 0;
873 int res = 0;
874 int errorno;
875
876 LOCK (wrklock);
877 self->dirp = dirp = opendir (req->dataptr);
878 self->dbuf = u = malloc (sizeof (*u));
879 UNLOCK (wrklock);
880
881 req->data2ptr = names = malloc (memlen);
882
883 if (dirp && u && names)
884 for (;;)
885 {
886 errno = 0;
887 readdir_r (dirp, &u->d, &entp);
888
889 if (!entp)
890 break;
891
892 name = entp->d_name;
893
894 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
895 {
896 int len = strlen (name) + 1;
897
898 res++;
899
900 while (memofs + len > memlen)
901 {
902 memlen *= 2;
903 LOCK (wrklock);
904 req->data2ptr = names = realloc (names, memlen);
905 UNLOCK (wrklock);
906
907 if (!names)
908 break;
909 }
910
911 memcpy (names + memofs, name, len);
912 memofs += len;
913 } 1450 }
914 }
915 1451
916 if (errno) 1452 req->type = EIO_DUP2;
917 res = -1; 1453 req->int1 = close_fd;
918 1454 req->sv2 = newSVsv (fh);
919 req->result = res; 1455 req->int2 = fd;
920}
921 1456
922/*****************************************************************************/ 1457 REQ_SEND;
923
924static void *aio_proc (void *thr_arg)
925{
926 aio_req req;
927 int type;
928 worker *self = (worker *)thr_arg;
929
930 do
931 {
932 LOCK (reqlock);
933
934 for (;;)
935 {
936 self->req = req = reqq_shift (&req_queue);
937
938 if (req)
939 break;
940
941 pthread_cond_wait (&reqwait, &reqlock);
942 }
943
944 UNLOCK (reqlock);
945
946 errno = 0; /* strictly unnecessary */
947 type = req->type; /* remember type for QUIT check */
948
949 if (!(req->flags & FLAG_CANCELLED))
950 switch (type)
951 {
952 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
953 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
954
955 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
956 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
957
958 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
959 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
960 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
961
962 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
963 case REQ_CLOSE: req->result = close (req->fd); break;
964 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
965 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
966 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
967 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
968 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
969
970 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
971 case REQ_FSYNC: req->result = fsync (req->fd); break;
972 case REQ_READDIR: scandir_ (req, self); break;
973
974 case REQ_BUSY:
975 {
976 struct timeval tv;
977
978 tv.tv_sec = req->fd;
979 tv.tv_usec = req->fd2;
980
981 req->result = select (0, 0, 0, 0, &tv);
982 }
983
984 case REQ_GROUP:
985 case REQ_NOP:
986 case REQ_QUIT:
987 break;
988
989 default:
990 req->result = ENOSYS;
991 break;
992 }
993
994 req->errorno = errno;
995
996 LOCK (reslock);
997
998 if (!reqq_push (&res_queue, req))
999 /* write a dummy byte to the pipe so fh becomes ready */
1000 write (respipe [1], &respipe, 1);
1001
1002 self->req = 0;
1003 worker_clear (self);
1004
1005 UNLOCK (reslock);
1006 }
1007 while (type != REQ_QUIT);
1008
1009 LOCK (wrklock);
1010 worker_free (self);
1011 UNLOCK (wrklock);
1012
1013 return 0;
1014} 1458}
1015 1459
1016/*****************************************************************************/
1017
1018static void atfork_prepare (void)
1019{
1020 LOCK (wrklock);
1021 LOCK (reqlock);
1022 LOCK (reslock);
1023#if !HAVE_PREADWRITE
1024 LOCK (preadwritelock);
1025#endif
1026#if !HAVE_READDIR_R
1027 LOCK (readdirlock);
1028#endif
1029}
1030
1031static void atfork_parent (void)
1032{
1033#if !HAVE_READDIR_R
1034 UNLOCK (readdirlock);
1035#endif
1036#if !HAVE_PREADWRITE
1037 UNLOCK (preadwritelock);
1038#endif
1039 UNLOCK (reslock);
1040 UNLOCK (reqlock);
1041 UNLOCK (wrklock);
1042}
1043
1044static void atfork_child (void)
1045{
1046 aio_req prv;
1047
1048 while (prv = reqq_shift (&req_queue))
1049 req_free (prv);
1050
1051 while (prv = reqq_shift (&res_queue))
1052 req_free (prv);
1053
1054 while (wrk_first.next != &wrk_first)
1055 {
1056 worker *wrk = wrk_first.next;
1057
1058 if (wrk->req)
1059 req_free (wrk->req);
1060
1061 worker_clear (wrk);
1062 worker_free (wrk);
1063 }
1064
1065 started = 0;
1066 nreqs = 0;
1067
1068 close (respipe [0]);
1069 close (respipe [1]);
1070 create_pipe ();
1071
1072 atfork_parent ();
1073}
1074
1075#define dREQ \
1076 aio_req req; \
1077 int req_pri = next_pri; \
1078 next_pri = DEFAULT_PRI + PRI_BIAS; \
1079 \
1080 if (SvOK (callback) && !SvROK (callback)) \
1081 croak ("callback must be undef or of reference type"); \
1082 \
1083 Newz (0, req, 1, aio_cb); \
1084 if (!req) \
1085 croak ("out of memory during aio_req allocation"); \
1086 \
1087 req->callback = newSVsv (callback); \
1088 req->pri = req_pri
1089
1090#define REQ_SEND \
1091 req_send (req); \
1092 \
1093 if (GIMME_V != G_VOID) \
1094 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1095
1096MODULE = IO::AIO PACKAGE = IO::AIO
1097
1098PROTOTYPES: ENABLE
1099
1100BOOT:
1101{
1102 HV *stash = gv_stashpv ("IO::AIO", 1);
1103 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1104 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1105 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1106
1107 create_pipe ();
1108 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1109}
1110
1111void 1460void
1112min_parallel (nthreads) 1461aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1113 int nthreads
1114 PROTOTYPE: $
1115
1116void
1117max_parallel (nthreads)
1118 int nthreads
1119 PROTOTYPE: $
1120
1121int
1122max_outstanding (nreqs)
1123 int nreqs
1124 PROTOTYPE: $
1125 CODE: 1462 PPCODE:
1126 RETVAL = max_outstanding;
1127 max_outstanding = nreqs;
1128
1129void
1130aio_open (pathname,flags,mode,callback=&PL_sv_undef)
1131 SV * pathname
1132 int flags
1133 int mode
1134 SV * callback
1135 PROTOTYPE: $$$;$
1136 PPCODE:
1137{ 1463{
1464 int fd = s_fileno_croak (fh, 0);
1138 dREQ; 1465 dREQ;
1139 1466
1140 req->type = REQ_OPEN; 1467 req->type = EIO_SEEK;
1141 req->data = newSVsv (pathname); 1468 req->sv1 = newSVsv (fh);
1142 req->dataptr = SvPVbyte_nolen (req->data); 1469 req->int1 = fd;
1143 req->fd = flags; 1470 req->offs = SvVAL64 (offset);
1144 req->mode = mode; 1471 req->int2 = whence;
1145 1472
1146 REQ_SEND; 1473 REQ_SEND;
1147} 1474}
1148 1475
1149void 1476void
1150aio_close (fh,callback=&PL_sv_undef) 1477aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1151 SV * fh
1152 SV * callback
1153 PROTOTYPE: $;$
1154 ALIAS: 1478 ALIAS:
1155 aio_close = REQ_CLOSE
1156 aio_fsync = REQ_FSYNC
1157 aio_fdatasync = REQ_FDATASYNC
1158 PPCODE:
1159{
1160 dREQ;
1161
1162 req->type = ix;
1163 req->fh = newSVsv (fh);
1164 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1165
1166 REQ_SEND (req);
1167}
1168
1169void
1170aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1171 SV * fh
1172 UV offset
1173 UV length
1174 SV * data
1175 UV dataoffset
1176 SV * callback
1177 ALIAS:
1178 aio_read = REQ_READ 1479 aio_read = EIO_READ
1179 aio_write = REQ_WRITE 1480 aio_write = EIO_WRITE
1180 PROTOTYPE: $$$$$;$
1181 PPCODE: 1481 PPCODE:
1182{ 1482{
1183 aio_req req;
1184 STRLEN svlen; 1483 STRLEN svlen;
1484 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1185 char *svptr = SvPVbyte (data, svlen); 1485 char *svptr = SvPVbyte (data, svlen);
1186 1486 UV len = SvUV (length);
1187 SvUPGRADE (data, SVt_PV);
1188 SvPOK_on (data);
1189 1487
1190 if (dataoffset < 0) 1488 if (dataoffset < 0)
1191 dataoffset += svlen; 1489 dataoffset += svlen;
1192 1490
1193 if (dataoffset < 0 || dataoffset > svlen) 1491 if (dataoffset < 0 || dataoffset > svlen)
1194 croak ("data offset outside of string"); 1492 croak ("dataoffset outside of data scalar");
1195 1493
1196 if (ix == REQ_WRITE) 1494 if (ix == EIO_WRITE)
1197 { 1495 {
1198 /* write: check length and adjust. */ 1496 /* write: check length and adjust. */
1199 if (length < 0 || length + dataoffset > svlen) 1497 if (!SvOK (length) || len + dataoffset > svlen)
1200 length = svlen - dataoffset; 1498 len = svlen - dataoffset;
1201 } 1499 }
1202 else 1500 else
1203 { 1501 {
1204 /* read: grow scalar as necessary */ 1502 /* read: check type and grow scalar as necessary */
1503 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1205 svptr = SvGROW (data, length + dataoffset); 1504 svptr = sv_grow (data, len + dataoffset + 1);
1505 else if (SvCUR (data) < len + dataoffset)
1506 croak ("length + dataoffset outside of scalar, and cannot grow");
1206 } 1507 }
1207
1208 if (length < 0)
1209 croak ("length must not be negative");
1210 1508
1211 { 1509 {
1212 dREQ; 1510 dREQ;
1213 1511
1214 req->type = ix; 1512 req->type = ix;
1215 req->fh = newSVsv (fh); 1513 req->sv1 = newSVsv (fh);
1216 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1514 req->int1 = fd;
1217 : IoOFP (sv_2io (fh))); 1515 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1218 req->offset = offset; 1516 req->size = len;
1219 req->length = length;
1220 req->data = SvREFCNT_inc (data); 1517 req->sv2 = SvREFCNT_inc (data);
1221 req->dataptr = (char *)svptr + dataoffset; 1518 req->ptr2 = (char *)svptr + dataoffset;
1519 req->stroffset = dataoffset;
1222 1520
1223 if (!SvREADONLY (data)) 1521 if (!SvREADONLY (data))
1224 { 1522 {
1225 SvREADONLY_on (data); 1523 SvREADONLY_on (data);
1226 req->data2ptr = (void *)data; 1524 req->flags |= FLAG_SV2_RO_OFF;
1227 } 1525 }
1228 1526
1229 REQ_SEND; 1527 REQ_SEND;
1230 } 1528 }
1231} 1529}
1232 1530
1233void 1531void
1234aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1532aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1235 SV * out_fh 1533 ALIAS:
1236 SV * in_fh 1534 aio_ioctl = EIO_IOCTL
1237 UV in_offset 1535 aio_fcntl = EIO_FCNTL
1238 UV length
1239 SV * callback
1240 PROTOTYPE: $$$$;$
1241 PPCODE: 1536 PPCODE:
1242{ 1537{
1243 dREQ; 1538 int fd = s_fileno_croak (fh, 0);
1539 char *svptr;
1244 1540
1245 req->type = REQ_SENDFILE; 1541 if (SvPOK (arg) || !SvNIOK (arg))
1246 req->fh = newSVsv (out_fh);
1247 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1248 req->fh2 = newSVsv (in_fh);
1249 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1250 req->offset = in_offset;
1251 req->length = length;
1252
1253 REQ_SEND;
1254}
1255
1256void
1257aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1258 SV * fh
1259 UV offset
1260 IV length
1261 SV * callback
1262 PROTOTYPE: $$$;$
1263 PPCODE:
1264{
1265 dREQ;
1266
1267 req->type = REQ_READAHEAD;
1268 req->fh = newSVsv (fh);
1269 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1270 req->offset = offset;
1271 req->length = length;
1272
1273 REQ_SEND;
1274}
1275
1276void
1277aio_stat (fh_or_path,callback=&PL_sv_undef)
1278 SV * fh_or_path
1279 SV * callback
1280 ALIAS:
1281 aio_stat = REQ_STAT
1282 aio_lstat = REQ_LSTAT
1283 PPCODE:
1284{
1285 dREQ;
1286
1287 New (0, req->statdata, 1, Stat_t);
1288 if (!req->statdata)
1289 { 1542 {
1290 req_free (req); 1543 STRLEN svlen;
1291 croak ("out of memory during aio_req->statdata allocation"); 1544 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1292 } 1545#ifdef IOCPARM_LEN
1546 STRLEN need = IOCPARM_LEN (request);
1547#else
1548 STRLEN need = 256;
1549#endif
1293 1550
1294 if (SvPOK (fh_or_path)) 1551 if (svlen < need)
1295 { 1552 svptr = SvGROW (arg, need);
1296 req->type = ix;
1297 req->data = newSVsv (fh_or_path);
1298 req->dataptr = SvPVbyte_nolen (req->data);
1299 } 1553 }
1300 else 1554 else
1555 svptr = (char *)SvIV (arg);
1556
1301 { 1557 {
1558 dREQ;
1559
1302 req->type = REQ_FSTAT; 1560 req->type = ix;
1303 req->fh = newSVsv (fh_or_path); 1561 req->sv1 = newSVsv (fh);
1304 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1562 req->int1 = fd;
1563 req->int2 = (long)request;
1564 req->sv2 = SvREFCNT_inc (arg);
1565 req->ptr2 = svptr;
1566
1567 REQ_SEND;
1305 } 1568 }
1569}
1570
1571void
1572aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1573 ALIAS:
1574 aio_readlink = EIO_READLINK
1575 aio_realpath = EIO_REALPATH
1576 PPCODE:
1577{
1578 dREQ;
1579
1580 req->type = ix;
1581 req_set_path1 (req, pathname);
1306 1582
1307 REQ_SEND; 1583 REQ_SEND;
1308} 1584}
1309 1585
1310void 1586void
1311aio_unlink (pathname,callback=&PL_sv_undef) 1587aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1312 SV * pathname 1588 PPCODE:
1313 SV * callback 1589{
1590 int ifd = s_fileno_croak (in_fh , 0);
1591 int ofd = s_fileno_croak (out_fh, 1);
1592 dREQ;
1593
1594 req->type = EIO_SENDFILE;
1595 req->sv1 = newSVsv (out_fh);
1596 req->int1 = ofd;
1597 req->sv2 = newSVsv (in_fh);
1598 req->int2 = ifd;
1599 req->offs = in_offset;
1600 req->size = length;
1601
1602 REQ_SEND;
1603}
1604
1605void
1606aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1607 PPCODE:
1608{
1609 int fd = s_fileno_croak (fh, 0);
1610 dREQ;
1611
1612 req->type = EIO_READAHEAD;
1613 req->sv1 = newSVsv (fh);
1614 req->int1 = fd;
1615 req->offs = offset;
1616 req->size = length;
1617
1618 REQ_SEND;
1619}
1620
1621void
1622aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1314 ALIAS: 1623 ALIAS:
1624 aio_stat = EIO_STAT
1625 aio_lstat = EIO_LSTAT
1626 aio_statvfs = EIO_STATVFS
1627 PPCODE:
1628{
1629 dREQ;
1630
1631 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1632
1633 REQ_SEND;
1634}
1635
1636void
1637st_xtime ()
1638 ALIAS:
1639 st_atime = 1
1640 st_mtime = 2
1641 st_ctime = 4
1642 st_xtime = 7
1643 PPCODE:
1644 EXTEND (SP, 3);
1645 if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1646 if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1647 if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1648
1649void
1650st_xtimensec ()
1651 ALIAS:
1652 st_atimensec = 1
1653 st_mtimensec = 2
1654 st_ctimensec = 4
1655 st_xtimensec = 7
1656 PPCODE:
1657 EXTEND (SP, 3);
1658 if (ix & 1) PUSHs (newSViv (ATIMENSEC));
1659 if (ix & 2) PUSHs (newSViv (MTIMENSEC));
1660 if (ix & 4) PUSHs (newSViv (CTIMENSEC));
1661
1662UV
1663major (UV dev)
1664 ALIAS:
1665 minor = 1
1666 CODE:
1667 RETVAL = ix ? minor (dev) : major (dev);
1668 OUTPUT:
1669 RETVAL
1670
1671UV
1672makedev (UV maj, UV min)
1673 CODE:
1674 RETVAL = makedev (maj, min);
1675 OUTPUT:
1676 RETVAL
1677
1678void
1679aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1680 PPCODE:
1681{
1682 dREQ;
1683
1684 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1685 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1686 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1687
1688 REQ_SEND;
1689}
1690
1691void
1692aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1693 PPCODE:
1694{
1695 dREQ;
1696
1697 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1698 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1699
1700 REQ_SEND;
1701}
1702
1703void
1704aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1705 PPCODE:
1706{
1707 dREQ;
1708
1709 req->int2 = mode;
1710 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1711
1712 REQ_SEND;
1713}
1714
1715void
1716aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1717 PPCODE:
1718{
1719 dREQ;
1720
1721 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1722 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1723 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1724
1725 REQ_SEND;
1726}
1727
1728void
1729aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1730 PPCODE:
1731{
1732 dREQ;
1733
1734 req->type = EIO_READDIR;
1735 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1736
1737 if (flags & EIO_READDIR_DENTS)
1738 req->int1 |= EIO_READDIR_CUSTOM2;
1739
1740 req_set_path1 (req, pathname);
1741
1742 REQ_SEND;
1743}
1744
1745void
1746aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1747 PPCODE:
1748{
1749 dREQ;
1750
1751 req->type = EIO_MKDIR;
1752 req->int2 = mode;
1753 req_set_path1 (req, pathname);
1754
1755 REQ_SEND;
1756}
1757
1758void
1759aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1760 ALIAS:
1315 aio_unlink = REQ_UNLINK 1761 aio_unlink = EIO_UNLINK
1316 aio_rmdir = REQ_RMDIR 1762 aio_rmdir = EIO_RMDIR
1317 aio_readdir = REQ_READDIR 1763 aio_readdir = EIO_READDIR
1318 PPCODE: 1764 PPCODE:
1319{ 1765{
1320 dREQ; 1766 dREQ;
1321 1767
1322 req->type = ix; 1768 req->type = ix;
1323 req->data = newSVsv (pathname); 1769 req_set_path1 (req, pathname);
1324 req->dataptr = SvPVbyte_nolen (req->data); 1770
1325
1326 REQ_SEND; 1771 REQ_SEND;
1327} 1772}
1328 1773
1329void 1774void
1330aio_link (oldpath,newpath,callback=&PL_sv_undef) 1775aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1331 SV * oldpath
1332 SV * newpath
1333 SV * callback
1334 ALIAS: 1776 ALIAS:
1335 aio_link = REQ_LINK 1777 aio_link = EIO_LINK
1336 aio_symlink = REQ_SYMLINK 1778 aio_symlink = EIO_SYMLINK
1337 aio_rename = REQ_RENAME 1779 aio_rename = EIO_RENAME
1338 PPCODE: 1780 PPCODE:
1339{ 1781{
1782 eio_wd wd2 = 0;
1340 dREQ; 1783 dREQ;
1341 1784
1342 req->type = ix; 1785 req->type = ix;
1343 req->fh = newSVsv (oldpath); 1786 req_set_path1 (req, oldpath);
1344 req->data2ptr = SvPVbyte_nolen (req->fh); 1787 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1345 req->data = newSVsv (newpath); 1788 req->int3 = (long)wd2;
1346 req->dataptr = SvPVbyte_nolen (req->data);
1347 1789
1348 REQ_SEND; 1790 REQ_SEND;
1349} 1791}
1350 1792
1351void 1793void
1352aio_busy (delay,callback=&PL_sv_undef) 1794aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1353 double delay
1354 SV * callback
1355 PPCODE: 1795 PPCODE:
1356{ 1796{
1797 eio_wd wd2 = 0;
1357 dREQ; 1798 dREQ;
1358 1799
1359 req->type = REQ_BUSY; 1800 req->type = EIO_RENAME;
1360 req->fd = delay < 0. ? 0 : delay; 1801 req_set_path1 (req, oldpath);
1361 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1802 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1362 1803 req->int2 = flags;
1804 req->int3 = (long)wd2;
1805
1363 REQ_SEND; 1806 REQ_SEND;
1364} 1807}
1365 1808
1366void 1809void
1367aio_group (callback=&PL_sv_undef) 1810aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1368 SV * callback 1811 PPCODE:
1369 PROTOTYPE: ;$ 1812{
1813 dREQ;
1814
1815 req->type = EIO_MKNOD;
1816 req->int2 = (mode_t)mode;
1817 req->offs = dev;
1818 req_set_path1 (req, pathname);
1819
1820 REQ_SEND;
1821}
1822
1823void
1824aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1825 ALIAS:
1826 aio_mtouch = EIO_MTOUCH
1827 aio_msync = EIO_MSYNC
1370 PPCODE: 1828 PPCODE:
1371{ 1829{
1830 STRLEN svlen;
1831 char *svptr = SvPVbyte (data, svlen);
1832 UV len = SvUV (length);
1833
1834 if (flags < 0)
1835 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1836
1837 if (offset < 0)
1838 offset += svlen;
1839
1840 if (offset < 0 || offset > svlen)
1841 croak ("offset outside of scalar");
1842
1843 if (!SvOK (length) || len + offset > svlen)
1844 len = svlen - offset;
1845
1846 {
1847 dREQ;
1848
1849 req->type = ix;
1850 req->sv2 = SvREFCNT_inc (data);
1851 req->ptr2 = (char *)svptr + offset;
1852 req->size = len;
1853 req->int1 = flags;
1854
1855 REQ_SEND;
1856 }
1857}
1858
1859void
1860aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1861 PPCODE:
1862{
1863 STRLEN svlen;
1864 char *svptr = SvPVbyte (data, svlen);
1865 UV len = SvUV (length);
1866
1867 if (offset < 0)
1868 offset += svlen;
1869
1870 if (offset < 0 || offset > svlen)
1871 croak ("offset outside of scalar");
1872
1873 if (!SvOK (length) || len + offset > svlen)
1874 len = svlen - offset;
1875
1876 {
1877 dREQ;
1878
1879 req->type = EIO_MLOCK;
1880 req->sv2 = SvREFCNT_inc (data);
1881 req->ptr2 = (char *)svptr + offset;
1882 req->size = len;
1883
1884 REQ_SEND;
1885 }
1886}
1887
1888void
1889aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1890 PPCODE:
1891{
1892 dREQ;
1893
1894 req->type = EIO_MLOCKALL;
1895 req->int1 = flags;
1896
1897 REQ_SEND;
1898}
1899
1900void
1901aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1902 PPCODE:
1903{
1904 int fd = s_fileno_croak (fh, 0);
1372 dREQ; 1905 dREQ;
1373 1906
1374 req->type = REQ_GROUP; 1907 req->type = EIO_CUSTOM;
1375 req_send (req); 1908 req->sv1 = newSVsv (fh);
1909 req->int1 = fd;
1376 1910
1377 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1911 req->feed = fiemap;
1378} 1912#if HAVE_FIEMAP
1913 /* keep our fingers crossed that the next two types are 64 bit */
1914 req->offs = start;
1915 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1916 req->int2 = flags;
1917 req->int3 = SvOK (count) ? SvIV (count) : -1;
1918#endif
1379 1919
1920 REQ_SEND;
1921}
1922
1380void 1923void
1381aio_nop (callback=&PL_sv_undef) 1924aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1382 SV * callback 1925 PPCODE:
1926{
1927 char *svptr = 0;
1928
1929 sv_clear_foreign (data);
1930
1931 if (length) /* known length, directly read into scalar */
1932 {
1933 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1934 svptr = sv_grow (data, length + 1);
1935 else if (SvCUR (data) < length)
1936 croak ("length outside of scalar, and cannot grow");
1937 else
1938 svptr = SvPVbyte_nolen (data);
1939 }
1940
1941 {
1942 dREQ;
1943
1944 req->type = EIO_SLURP;
1945 req_set_path1 (req, pathname);
1946 req->offs = offset;
1947 req->size = length;
1948 req->sv2 = SvREFCNT_inc (data);
1949 req->ptr2 = svptr;
1950
1951 if (!SvREADONLY (data))
1952 {
1953 SvREADONLY_on (data);
1954 req->flags |= FLAG_SV2_RO_OFF;
1955 }
1956
1957 REQ_SEND;
1958 }
1959}
1960
1961void
1962aio_busy (double delay, SV *callback = &PL_sv_undef)
1383 PPCODE: 1963 PPCODE:
1384{ 1964{
1385 dREQ; 1965 dREQ;
1386 1966
1387 req->type = REQ_NOP; 1967 req->type = EIO_BUSY;
1968 req->nv1 = delay < 0. ? 0. : delay;
1388 1969
1389 REQ_SEND; 1970 REQ_SEND;
1390} 1971}
1391 1972
1392void 1973void
1393aioreq_pri (int pri = DEFAULT_PRI) 1974aio_group (SV *callback = &PL_sv_undef)
1394 CODE: 1975 PPCODE:
1976{
1977 dREQ;
1978
1979 req->type = EIO_GROUP;
1980
1981 PUTBACK;
1982 req_submit (req);
1983 SPAGAIN;
1984
1985 XPUSHs (req_sv (req, aio_grp_stash));
1986}
1987
1988void
1989aio_nop (SV *callback = &PL_sv_undef)
1990 ALIAS:
1991 aio_nop = EIO_NOP
1992 aio_sync = EIO_SYNC
1993 PPCODE:
1994{
1995 dREQ;
1996
1997 req->type = ix;
1998
1999 REQ_SEND;
2000}
2001
2002int
2003aioreq_pri (int pri = NO_INIT)
2004 CODE:
2005 RETVAL = next_pri;
2006 if (items > 0)
2007 {
1395 if (pri < PRI_MIN) pri = PRI_MIN; 2008 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1396 if (pri > PRI_MAX) pri = PRI_MAX; 2009 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1397 next_pri = pri + PRI_BIAS; 2010 next_pri = pri;
2011 }
2012 OUTPUT:
2013 RETVAL
1398 2014
1399void 2015void
1400aioreq_nice (int nice = 0) 2016aioreq_nice (int nice = 0)
1401 CODE: 2017 CODE:
1402 nice = next_pri - nice; 2018 nice = next_pri - nice;
1403 if (nice < PRI_MIN) nice = PRI_MIN; 2019 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1404 if (nice > PRI_MAX) nice = PRI_MAX; 2020 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1405 next_pri = nice + PRI_BIAS; 2021 next_pri = nice;
1406 2022
1407void 2023void
1408flush () 2024flush ()
1409 PROTOTYPE:
1410 CODE: 2025 CODE:
1411 while (nreqs) 2026 while (eio_nreqs ())
1412 { 2027 {
1413 poll_wait (); 2028 poll_wait ();
1414 poll_cb (); 2029 poll_cb ();
1415 } 2030 }
1416 2031
1417void 2032int
1418poll() 2033poll ()
1419 PROTOTYPE:
1420 CODE: 2034 CODE:
1421 if (nreqs)
1422 {
1423 poll_wait (); 2035 poll_wait ();
1424 poll_cb (); 2036 RETVAL = poll_cb ();
1425 }
1426
1427int
1428poll_fileno()
1429 PROTOTYPE:
1430 CODE:
1431 RETVAL = respipe [0];
1432 OUTPUT: 2037 OUTPUT:
1433 RETVAL 2038 RETVAL
1434 2039
1435int 2040int
2041poll_fileno ()
2042 CODE:
2043 RETVAL = s_epipe_fd (&respipe);
2044 OUTPUT:
2045 RETVAL
2046
2047int
1436poll_cb(...) 2048poll_cb (...)
1437 PROTOTYPE: 2049 PROTOTYPE:
1438 CODE: 2050 CODE:
1439 RETVAL = poll_cb (); 2051 RETVAL = poll_cb ();
1440 OUTPUT: 2052 OUTPUT:
1441 RETVAL 2053 RETVAL
1442 2054
1443void 2055void
1444poll_wait() 2056poll_wait ()
1445 PROTOTYPE:
1446 CODE: 2057 CODE:
1447 if (nreqs)
1448 poll_wait (); 2058 poll_wait ();
1449 2059
1450int 2060int
1451nreqs() 2061nreqs ()
1452 PROTOTYPE:
1453 CODE: 2062 CODE:
1454 RETVAL = nreqs; 2063 RETVAL = eio_nreqs ();
1455 OUTPUT: 2064 OUTPUT:
1456 RETVAL 2065 RETVAL
1457 2066
2067int
2068nready ()
2069 CODE:
2070 RETVAL = eio_nready ();
2071 OUTPUT:
2072 RETVAL
2073
2074int
2075npending ()
2076 CODE:
2077 RETVAL = eio_npending ();
2078 OUTPUT:
2079 RETVAL
2080
2081int
2082nthreads ()
2083 CODE:
2084 RETVAL = eio_nthreads ();
2085 OUTPUT:
2086 RETVAL
2087
2088int
2089fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2090 CODE:
2091 RETVAL = posix_fadvise (fh, offset, length, advice);
2092 OUTPUT:
2093 RETVAL
2094
2095IV
2096sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2097 CODE:
2098 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2099 OUTPUT:
2100 RETVAL
2101
2102void
2103mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2104 PPCODE:
2105 sv_clear_foreign (scalar);
2106{
2107 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2108 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2109 if (addr == (void *)-1)
2110 XSRETURN_NO;
2111
2112 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2113
2114 if (!(prot & PROT_WRITE))
2115 SvREADONLY_on (scalar);
2116
2117 XSRETURN_YES;
2118}
2119
2120void
2121munmap (SV *scalar)
2122 CODE:
2123 sv_clear_foreign (scalar);
2124
2125SV *
2126mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2127 CODE:
2128{
2129 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2130 void *new;
2131
2132 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2133 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2134
2135 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2136
2137 RETVAL = &PL_sv_no;
2138
2139 if (new != (void *)-1)
2140 {
2141 RETVAL = new == (void *)mg->mg_ptr
2142 ? newSVpvn ("0 but true", 10)
2143 : &PL_sv_yes;
2144
2145 mg->mg_ptr = (char *)new;
2146 mg->mg_obj = (SV *)new_length;
2147
2148 SvPVX (scalar) = mg->mg_ptr;
2149 SvCUR_set (scalar, new_length);
2150 }
2151}
2152 OUTPUT:
2153 RETVAL
2154
2155int
2156madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2157 ALIAS:
2158 mprotect = 1
2159 CODE:
2160{
2161 STRLEN svlen;
2162 void *addr = SvPVbyte (scalar, svlen);
2163 STRLEN len = SvUV (length);
2164
2165 if (offset < 0)
2166 offset += svlen;
2167
2168 if (offset < 0 || offset > svlen)
2169 croak ("offset outside of scalar");
2170
2171 if (!SvOK (length) || len + offset > svlen)
2172 len = svlen - offset;
2173
2174 addr = (void *)(((intptr_t)addr) + offset);
2175 eio_page_align (&addr, &len);
2176
2177 switch (ix)
2178 {
2179 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2180 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2181 }
2182}
2183 OUTPUT:
2184 RETVAL
2185
2186int
2187munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
2188 CODE:
2189{
2190 STRLEN svlen;
2191 void *addr = SvPVbyte (scalar, svlen);
2192 size_t len = SvUV (length);
2193
2194 if (offset < 0)
2195 offset += svlen;
2196
2197 if (offset < 0 || offset > svlen)
2198 croak ("offset outside of scalar");
2199
2200 if (!SvOK (length) || len + offset > svlen)
2201 len = svlen - offset;
2202
2203 addr = (void *)(((intptr_t)addr) + offset);
2204 eio_page_align (&addr, &len);
2205#if _POSIX_MEMLOCK_RANGE
2206 RETVAL = munlock (addr, len);
2207#else
2208 RETVAL = EIO_ENOSYS ();
2209#endif
2210}
2211 OUTPUT:
2212 RETVAL
2213
2214int
2215munlockall ()
2216 CODE:
2217#if _POSIX_MEMLOCK
2218 munlockall ();
2219#else
2220 RETVAL = EIO_ENOSYS ();
2221#endif
2222 OUTPUT:
2223 RETVAL
2224
2225int
2226splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2227 CODE:
2228{
2229#if HAVE_LINUX_SPLICE
2230 loff_t off_in_, off_out_;
2231 RETVAL = splice (
2232 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2233 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2234 length, flags
2235 );
2236#else
2237 RETVAL = EIO_ENOSYS ();
2238#endif
2239}
2240 OUTPUT:
2241 RETVAL
2242
2243int
2244tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2245 CODE:
2246#if HAVE_LINUX_SPLICE
2247 RETVAL = tee (rfh, wfh, length, flags);
2248#else
2249 RETVAL = EIO_ENOSYS ();
2250#endif
2251 OUTPUT:
2252 RETVAL
2253
2254int
2255pipesize (aio_rfd rfh, int new_size = -1)
2256 PROTOTYPE: $;$
2257 CODE:
2258#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2259 if (new_size >= 0)
2260 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2261 else
2262 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2263#else
2264 errno = ENOSYS;
2265 RETVAL = -1;
2266#endif
2267 OUTPUT:
2268 RETVAL
2269
2270void
2271pipe2 (int flags = 0)
2272 PROTOTYPE: ;$
2273 PPCODE:
2274{
2275 int fd[2];
2276 int res;
2277
2278 if (flags)
2279#if HAVE_PIPE2
2280 res = pipe2 (fd, flags);
2281#else
2282 res = (errno = ENOSYS, -1);
2283#endif
2284 else
2285 res = pipe (fd);
2286
2287 if (!res)
2288 {
2289 EXTEND (SP, 2);
2290 PUSHs (newmortalFH (fd[0], O_RDONLY));
2291 PUSHs (newmortalFH (fd[1], O_WRONLY));
2292 }
2293}
2294
2295void
2296eventfd (unsigned int initval = 0, int flags = 0)
2297 PPCODE:
2298{
2299 int fd;
2300#if HAVE_EVENTFD
2301 fd = eventfd (initval, flags);
2302#else
2303 fd = (errno = ENOSYS, -1);
2304#endif
2305
2306 XPUSHs (newmortalFH (fd, O_RDWR));
2307}
2308
2309void
2310timerfd_create (int clockid, int flags = 0)
2311 PPCODE:
2312{
2313 int fd;
2314#if HAVE_TIMERFD
2315 fd = timerfd_create (clockid, flags);
2316#else
2317 fd = (errno = ENOSYS, -1);
2318#endif
2319
2320 XPUSHs (newmortalFH (fd, O_RDWR));
2321}
2322
2323void
2324timerfd_settime (SV *fh, int flags, NV interval, NV value)
2325 PPCODE:
2326{
2327 int fd = s_fileno_croak (fh, 0);
2328#if HAVE_TIMERFD
2329 int res;
2330 struct itimerspec its, ots;
2331
2332 ts_set (&its.it_interval, interval);
2333 ts_set (&its.it_value , value);
2334 res = timerfd_settime (fd, flags, &its, &ots);
2335
2336 if (!res)
2337 {
2338 EXTEND (SP, 2);
2339 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2340 PUSHs (newSVnv (ts_get (&ots.it_value)));
2341 }
2342#else
2343 errno = ENOSYS;
2344#endif
2345}
2346
2347void
2348timerfd_gettime (SV *fh)
2349 PPCODE:
2350{
2351 int fd = s_fileno_croak (fh, 0);
2352#if HAVE_TIMERFD
2353 int res;
2354 struct itimerspec ots;
2355 res = timerfd_gettime (fd, &ots);
2356
2357 if (!res)
2358 {
2359 EXTEND (SP, 2);
2360 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2361 PUSHs (newSVnv (ts_get (&ots.it_value)));
2362 }
2363#else
2364 errno = ENOSYS;
2365#endif
2366}
2367
2368UV
2369get_fdlimit ()
2370 CODE:
2371#if HAVE_RLIMITS
2372 struct rlimit rl;
2373 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2374 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2375#endif
2376 XSRETURN_UNDEF;
2377 OUTPUT:
2378 RETVAL
2379
2380void
2381min_fdlimit (UV limit = 0x7fffffffU)
2382 CODE:
2383{
2384#if HAVE_RLIMITS
2385 struct rlimit rl;
2386 rlim_t orig_rlim_max;
2387 UV bit;
2388
2389 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2390 goto fail;
2391
2392 if (rl.rlim_cur == RLIM_INFINITY)
2393 XSRETURN_YES;
2394
2395 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2396
2397 if (rl.rlim_cur < limit)
2398 {
2399 rl.rlim_cur = limit;
2400
2401 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2402 rl.rlim_max = rl.rlim_cur;
2403 }
2404
2405 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2406 XSRETURN_YES;
2407
2408 if (errno == EPERM)
2409 {
2410 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2411 /* our limit overflows a system-wide limit */
2412 /* try an adaptive algorithm, but do not lower the hardlimit */
2413 rl.rlim_max = 0;
2414 for (bit = 0x40000000U; bit; bit >>= 1)
2415 {
2416 rl.rlim_max |= bit;
2417 rl.rlim_cur = rl.rlim_max;
2418
2419 /* nevr decrease the hard limit */
2420 if (rl.rlim_max < orig_rlim_max)
2421 break;
2422
2423 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2424 rl.rlim_max &= ~bit; /* too high, remove bit again */
2425 }
2426
2427 /* now, raise the soft limit to the max permitted */
2428 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2429 {
2430 rl.rlim_cur = rl.rlim_max;
2431 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2432 errno = EPERM;
2433 }
2434 }
2435#endif
2436 fail:
2437 XSRETURN_UNDEF;
2438}
2439
2440void _on_next_submit (SV *cb)
2441 CODE:
2442 SvREFCNT_dec (on_next_submit);
2443 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2444
1458PROTOTYPES: DISABLE 2445PROTOTYPES: DISABLE
2446
2447MODULE = IO::AIO PACKAGE = IO::AIO::WD
2448
2449BOOT:
2450{
2451 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2452 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2453}
2454
2455void
2456DESTROY (SV *self)
2457 CODE:
2458{
2459 aio_wd wd = SvAIO_WD (self);
2460#if HAVE_AT
2461 {
2462 SV *callback = &PL_sv_undef;
2463 dREQ; /* clobbers next_pri :/ */
2464 next_pri = req->pri; /* restore next_pri */
2465 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2466 req->type = EIO_WD_CLOSE;
2467 req->wd = wd;
2468 REQ_SEND;
2469 }
2470#else
2471 eio_wd_close_sync (wd);
2472#endif
2473}
1459 2474
1460MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2475MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1461 2476
1462void 2477void
1463cancel (aio_req_ornot req) 2478cancel (aio_req_ornot req)
1464 CODE: 2479 CODE:
1465 req_cancel (req); 2480 eio_cancel (req);
1466 2481
1467void 2482void
1468cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2483cb (aio_req_ornot req, SV *callback = NO_INIT)
1469 CODE: 2484 PPCODE:
2485{
2486 if (GIMME_V != G_VOID)
2487 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2488
2489 if (items > 1)
2490 {
2491 SV *cb_cv = get_cb (callback);
2492
1470 SvREFCNT_dec (req->callback); 2493 SvREFCNT_dec (req->callback);
1471 req->callback = newSVsv (callback); 2494 req->callback = SvREFCNT_inc (cb_cv);
2495 }
2496}
1472 2497
1473MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2498MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1474 2499
1475void 2500void
1476add (aio_req grp, ...) 2501add (aio_req grp, ...)
1477 PPCODE: 2502 PPCODE:
1478{ 2503{
1479 int i; 2504 int i;
1480 aio_req req;
1481 2505
1482 if (grp->fd == 2) 2506 if (grp->int1 == 2)
1483 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2507 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1484 2508
1485 for (i = 1; i < items; ++i ) 2509 for (i = 1; i < items; ++i )
1486 { 2510 {
2511 aio_req req;
2512
1487 if (GIMME_V != G_VOID) 2513 if (GIMME_V != G_VOID)
1488 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2514 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1489 2515
1490 req = SvAIO_REQ (ST (i)); 2516 req = SvAIO_REQ (ST (i));
1491 2517
1492 if (req) 2518 if (req)
1493 { 2519 eio_grp_add (grp, req);
1494 ++grp->length;
1495 req->grp = grp;
1496
1497 req->grp_prev = 0;
1498 req->grp_next = grp->grp_first;
1499
1500 if (grp->grp_first)
1501 grp->grp_first->grp_prev = req;
1502
1503 grp->grp_first = req;
1504 }
1505 } 2520 }
1506} 2521}
1507 2522
1508void 2523void
1509cancel_subs (aio_req_ornot req) 2524cancel_subs (aio_req_ornot req)
… …
1513void 2528void
1514result (aio_req grp, ...) 2529result (aio_req grp, ...)
1515 CODE: 2530 CODE:
1516{ 2531{
1517 int i; 2532 int i;
2533 AV *av;
2534
2535 grp->errorno = errno;
2536
1518 AV *av = newAV (); 2537 av = newAV ();
2538 av_extend (av, items - 1);
1519 2539
1520 for (i = 1; i < items; ++i ) 2540 for (i = 1; i < items; ++i )
1521 av_push (av, newSVsv (ST (i))); 2541 av_push (av, newSVsv (ST (i)));
1522 2542
1523 SvREFCNT_dec (grp->data); 2543 SvREFCNT_dec (grp->sv1);
1524 grp->data = (SV *)av; 2544 grp->sv1 = (SV *)av;
1525} 2545}
2546
2547void
2548errno (aio_req grp, int errorno = errno)
2549 CODE:
2550 grp->errorno = errorno;
1526 2551
1527void 2552void
1528limit (aio_req grp, int limit) 2553limit (aio_req grp, int limit)
1529 CODE: 2554 CODE:
1530 grp->fd2 = limit; 2555 eio_grp_limit (grp, limit);
1531 aio_grp_feed (grp);
1532 2556
1533void 2557void
1534feed (aio_req grp, SV *callback=&PL_sv_undef) 2558feed (aio_req grp, SV *callback = &PL_sv_undef)
1535 CODE: 2559 CODE:
1536{ 2560{
1537 SvREFCNT_dec (grp->fh2); 2561 SvREFCNT_dec (grp->sv2);
1538 grp->fh2 = newSVsv (callback); 2562 grp->sv2 = newSVsv (callback);
2563 grp->feed = aio_grp_feed;
1539 2564
1540 if (grp->fd2 <= 0) 2565 if (grp->int2 <= 0)
1541 grp->fd2 = 2; 2566 grp->int2 = 2;
1542 2567
1543 aio_grp_feed (grp); 2568 eio_grp_limit (grp, grp->int2);
1544} 2569}
1545 2570

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