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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.91 by root, Wed Nov 8 01:57:43 2006 UTC vs.
Revision 1.286 by root, Tue Dec 29 15:25:26 2020 UTC

1/* solaris */ 1#include "libeio/xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux && !defined(_GNU_SOURCE)
5# define _GNU_SOURCE
6#endif
7
8/* just in case */
9#define _REENTRANT 1
10 2
11#include <errno.h> 3#include <errno.h>
12 4
13#include "EXTERN.h" 5#include "EXTERN.h"
14#include "perl.h" 6#include "perl.h"
15#include "XSUB.h" 7#include "XSUB.h"
8#include "perliol.h"
16 9
17#include "autoconf/config.h" 10#if !defined mg_findext
18 11# define mg_findext(sv,type,vtbl) mg_find (sv, type)
19#include <pthread.h> 12#endif
20 13
21#include <stddef.h> 14#include <stddef.h>
15#include <stdlib.h>
22#include <errno.h> 16#include <errno.h>
23#include <sys/time.h>
24#include <sys/select.h>
25#include <sys/types.h> 17#include <sys/types.h>
18#include <sys/socket.h>
26#include <sys/stat.h> 19#include <sys/stat.h>
27#include <limits.h> 20#include <limits.h>
28#include <unistd.h>
29#include <fcntl.h> 21#include <fcntl.h>
30#include <signal.h>
31#include <sched.h> 22#include <sched.h>
32 23
33#if HAVE_SENDFILE 24/* the incompetent fool that created musl keeps __linux__, refuses
34# if __linux 25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
37
38/* perl namespace pollution */
39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
47#ifdef _WIN32
48
49 // perl overrides all those nice libc functions
50
51 #undef malloc
52 #undef free
53 #undef open
54 #undef read
55 #undef write
56 #undef send
57 #undef recv
58 #undef stat
59 #undef lstat
60 #undef fstat
61 #undef truncate
62 #undef ftruncate
63 #undef open
64 #undef link
65 #undef close
66 #undef unlink
67 #undef mkdir
68 #undef rmdir
69 #undef rename
70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
80 #undef utime
81
82 #define EIO_STRUCT_STAT struct _stati64
83 #define EIO_STRUCT_STATI64
84
85#else
86
87 #include <sys/time.h>
35# include <sys/sendfile.h> 88 #include <sys/select.h>
36# elif __freebsd 89 #include <unistd.h>
90 #include <utime.h>
91 #include <signal.h>
92
93 #define EIO_STRUCT_STAT Stat_t
94
95#endif
96
97/*****************************************************************************/
98
99#if __GNUC__ >= 3
100# define expect(expr,value) __builtin_expect ((expr),(value))
101#else
102# define expect(expr,value) (expr)
103#endif
104
105#define expect_false(expr) expect ((expr) != 0, 0)
106#define expect_true(expr) expect ((expr) != 0, 1)
107
108/*****************************************************************************/
109
110#include "config.h"
111
112#if HAVE_SYS_MKDEV_H
37# include <sys/socket.h> 113# include <sys/mkdev.h>
114#elif HAVE_SYS_SYSMACROS_H
115# include <sys/sysmacros.h>
116#endif
117
118#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
119# include <sys/mman.h>
120#endif
121
122#if HAVE_SYS_UIO_H
38# include <sys/uio.h> 123# include <sys/uio.h>
39# elif __hpux 124#endif
40# include <sys/socket.h> 125
41# elif __solaris /* not yet */ 126#if HAVE_ST_XTIMENSEC
127# define ATIMENSEC PL_statcache.st_atimensec
128# define MTIMENSEC PL_statcache.st_mtimensec
129# define CTIMENSEC PL_statcache.st_ctimensec
130#elif HAVE_ST_XTIMESPEC
131# define ATIMENSEC PL_statcache.st_atim.tv_nsec
132# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
133# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
134#else
135# define ATIMENSEC 0
136# define MTIMENSEC 0
137# define CTIMENSEC 0
138#endif
139
140#if HAVE_ST_BIRTHTIMENSEC
141# define BTIMESEC PL_statcache.st_birthtime
142# define BTIMENSEC PL_statcache.st_birthtimensec
143#elif HAVE_ST_BIRTHTIMESPEC
144# define BTIMESEC PL_statcache.st_birthtim.tv_sec
145# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
146#else
147# define BTIMESEC 0
148# define BTIMENSEC 0
149#endif
150
151#if HAVE_ST_GEN
152# define ST_GEN PL_statcache.st_gen
153#else
154# define ST_GEN 0
155#endif
156
157#include "schmorp.h"
158
159#if HAVE_EVENTFD
42# include <sys/sendfile.h> 160# include <sys/eventfd.h>
161#endif
162
163#if HAVE_TIMERFD
164# include <sys/timerfd.h>
165#endif
166
167#if HAVE_RLIMITS
168 #include <sys/time.h>
169 #include <sys/resource.h>
170#endif
171
172typedef SV SV8; /* byte-sv, used for argument-checking */
173typedef int aio_rfd; /* read file desriptor */
174typedef int aio_wfd; /* write file descriptor */
175
176static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
177
178#define EIO_REQ_MEMBERS \
179 SV *callback; \
180 SV *sv1, *sv2; \
181 SV *sv3, *sv4; \
182 STRLEN stroffset; \
183 SV *self;
184
185#define EIO_NO_WRAPPERS 1
186
187#include "libeio/eio.h"
188
189static int req_invoke (eio_req *req);
190#define EIO_FINISH(req) req_invoke (req)
191static void req_destroy (eio_req *grp);
192#define EIO_DESTROY(req) req_destroy (req)
193
194#include "libeio/eio.c"
195
196#if !HAVE_POSIX_FADVISE
197# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
198#endif
199
200#if !HAVE_POSIX_MADVISE
201# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
202#endif
203
204#ifndef MAP_ANONYMOUS
205# ifdef MAP_ANON
206# define MAP_ANONYMOUS MAP_ANON
43# else 207# else
44# error sendfile support requested but not available 208# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 209# endif
46#endif 210#endif
47 211
48/* number of seconds after which idle threads exit */ 212#ifndef makedev
49#define IDLE_TIMEOUT 10 213# define makedev(maj,min) (((maj) << 8) | (min))
50
51/* used for struct dirent, AIX doesn't provide it */
52#ifndef NAME_MAX
53# define NAME_MAX 4096
54#endif 214#endif
55 215#ifndef major
56#ifndef PTHREAD_STACK_MIN 216# define major(dev) ((dev) >> 8)
57/* care for broken platforms, e.g. windows */
58# define PTHREAD_STACK_MIN 16384
59#endif 217#endif
218#ifndef minor
219# define minor(dev) ((dev) & 0xff)
220#endif
60 221
61#if __ia64 222/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
62# define STACKSIZE 65536 223#ifdef __sun
63#elif __i386 || __x86_64 /* 16k is unreasonably high :( */ 224# undef PAGESIZE
64# define STACKSIZE PTHREAD_STACK_MIN 225#endif
226
227#if PAGESIZE <= 0
228# define PAGESIZE sysconf (_SC_PAGESIZE)
229#endif
230
231#if HAVE_SYSCALL
232#include <sys/syscall.h>
65#else 233#else
66# define STACKSIZE 16384 234# define syscall(nr,...) (errno = ENOSYS, -1)
67#endif
68
69/* wether word reads are potentially non-atomic.
70 * this is conservatice, likely most arches this runs
71 * on have atomic word read/writes.
72 */
73#ifndef WORDACCESS_UNSAFE
74# if __i386 || __x86_64
75# define WORDACCESS_UNSAFE 0
76# else
77# define WORDACCESS_UNSAFE 1
78# endif 235#endif
79#endif
80 236
81/* buffer size for various temporary buffers */ 237/*****************************************************************************/
82#define AIO_BUFSIZE 65536
83 238
84#define dBUF \ 239#if !_POSIX_MAPPED_FILES
85 char *aio_buf; \ 240# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
86 LOCK (wrklock); \ 241# define munmap(addr,length) EIO_ENOSYS ()
87 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 242#endif
88 UNLOCK (wrklock); \ 243
89 if (!aio_buf) \ 244#if !_POSIX_MEMORY_PROTECTION
245# define mprotect(addr,len,prot) EIO_ENOSYS ()
246#endif
247
248#if !MREMAP_MAYMOVE
249# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
250#endif
251
252#define FOREIGN_MAGIC PERL_MAGIC_ext
253
254static int ecb_cold
255mmap_free (pTHX_ SV *sv, MAGIC *mg)
256{
257 int old_errno = errno;
258 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
259 errno = old_errno;
260
261 mg->mg_obj = 0; /* just in case */
262
263 SvREADONLY_off (sv);
264
265 if (SvPVX (sv) != mg->mg_ptr)
266 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
267
268 SvCUR_set (sv, 0);
269 SvPVX (sv) = 0;
270 SvOK_off (sv);
271
90 return -1; 272 return 0;
273}
91 274
92typedef SV SV8; /* byte-sv, used for argument-checking */ 275static MGVTBL mmap_vtbl = {
93 276 0, 0, 0, 0, mmap_free
94enum {
95 REQ_QUIT,
96 REQ_OPEN, REQ_CLOSE,
97 REQ_READ, REQ_WRITE, REQ_READAHEAD,
98 REQ_SENDFILE,
99 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
100 REQ_FSYNC, REQ_FDATASYNC,
101 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
102 REQ_MKNOD, REQ_READDIR,
103 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
104 REQ_GROUP, REQ_NOP,
105 REQ_BUSY,
106}; 277};
107 278
108#define AIO_REQ_KLASS "IO::AIO::REQ" 279static int ecb_cold
109#define AIO_GRP_KLASS "IO::AIO::GRP" 280sysfree_free (pTHX_ SV *sv, MAGIC *mg)
110
111typedef struct aio_cb
112{ 281{
113 struct aio_cb *volatile next; 282 free (mg->mg_ptr);
283 mg->mg_obj = 0; /* just in case */
114 284
115 SV *callback, *fh; 285 SvREADONLY_off (sv);
116 SV *sv1, *sv2;
117 void *ptr1, *ptr2;
118 off_t offs;
119 size_t size;
120 ssize_t result;
121 286
122 STRLEN stroffset; 287 if (SvPVX (sv) != mg->mg_ptr)
123 int type; 288 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
124 int int1, int2;
125 int errorno;
126 mode_t mode; /* open */
127 289
128 unsigned char flags; 290 SvCUR_set (sv, 0);
129 unsigned char pri; 291 SvPVX (sv) = 0;
292 SvOK_off (sv);
130 293
131 SV *self; /* the perl counterpart of this request, if any */ 294 return 0;
132 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 295}
133} aio_cb;
134 296
135enum { 297static MGVTBL sysfree_vtbl = {
136 FLAG_CANCELLED = 0x01, /* request was cancelled */ 298 0, 0, 0, 0, sysfree_free
137 FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */
138 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
139}; 299};
140 300
141typedef aio_cb *aio_req; 301/*****************************************************************************/
142typedef aio_cb *aio_req_ornot;
143 302
144enum { 303/* helper: set scalar to foreign ptr with custom free */
145 PRI_MIN = -4, 304ecb_noinline
146 PRI_MAX = 4, 305static void
147 306sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
148 DEFAULT_PRI = 0,
149 PRI_BIAS = -PRI_MIN,
150 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
151};
152
153#define AIO_TICKS ((1000000 + 1023) >> 10)
154
155static unsigned int max_poll_time = 0;
156static unsigned int max_poll_reqs = 0;
157
158/* calculcate time difference in ~1/AIO_TICKS of a second */
159static int tvdiff (struct timeval *tv1, struct timeval *tv2)
160{ 307{
161 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 308 sv_force_normal (sv);
162 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
163}
164 309
165static int next_pri = DEFAULT_PRI + PRI_BIAS; 310 /* we store the length in mg_obj, as namlen is I32 :/ */
311 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
312 ->mg_obj = (SV *)length;
166 313
167static unsigned int started, idle, wanted; 314 SvUPGRADE (sv, SVt_PV); /* nop... */
168 315
169#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) 316 if (SvLEN (sv))
170# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP 317 Safefree (SvPVX (sv));
171#else
172# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
173#endif
174 318
175#define LOCK(mutex) pthread_mutex_lock (&(mutex)) 319 SvPVX (sv) = (char *)addr;
176#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) 320 SvCUR_set (sv, length);
321 SvLEN_set (sv, 0);
322 SvPOK_only (sv);
323}
177 324
178/* worker threads management */ 325static void
179static pthread_mutex_t wrklock = AIO_MUTEX_INIT; 326sv_clear_foreign (SV *sv)
180
181typedef struct worker {
182 /* locked by wrklock */
183 struct worker *prev, *next;
184
185 pthread_t tid;
186
187 /* locked by reslock, reqlock or wrklock */
188 aio_req req; /* currently processed request */
189 void *dbuf;
190 DIR *dirp;
191} worker;
192
193static worker wrk_first = { &wrk_first, &wrk_first, 0 };
194
195static void worker_clear (worker *wrk)
196{ 327{
197 if (wrk->dirp) 328 /* todo: iterate over magic and only free ours, but of course */
329 /* the perl5porters will call that (correct) behaviour buggy */
330 sv_unmagic (sv, FOREIGN_MAGIC);
331}
332
333/*****************************************************************************/
334
335/* defines all sorts of constants to 0 unless they are already defined */
336/* also provides const_iv_ and const_niv_ macros for them */
337#include "def0.h"
338
339/*****************************************************************************/
340
341static void
342fiemap (eio_req *req)
343{
344 req->result = -1;
345
346#if HAVE_FIEMAP
347 /* assume some c99 */
348 struct fiemap *fiemap = 0;
349 size_t end_offset;
350 int count = req->int3;
351
352 req->flags |= EIO_FLAG_PTR1_FREE;
353
354 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
355 /* increase in fixed steps */
356 if (count < 0)
357 count = 8;
358
359 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
360 errno = ENOMEM;
361 if (!fiemap)
362 return;
363
364 req->ptr1 = fiemap;
365
366 fiemap->fm_start = req->offs;
367 fiemap->fm_length = req->size;
368 fiemap->fm_flags = req->int2;
369 fiemap->fm_extent_count = count;
370
371 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
372 return;
373
374 if (req->int3 >= 0 /* not autosizing */
375 || !fiemap->fm_mapped_extents /* no more extents */
376 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
377 goto done;
378
379 /* else we have to loop -
380 * it would be tempting (actually I tried that first) to just query the
381 * number of extents needed, but linux often feels like not returning all
382 * extents, without telling us it left any out. this complicates
383 * this quite a bit.
384 */
385
386 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
387
388 for (;;)
198 { 389 {
199 closedir (wrk->dirp); 390 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
200 wrk->dirp = 0; 391 char scratch[3072];
201 } 392 struct fiemap *incmap = (struct fiemap *)scratch;
202 393
203 if (wrk->dbuf) 394 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
204 { 395 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
205 free (wrk->dbuf); 396 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
206 wrk->dbuf = 0; 397 incmap->fm_flags = fiemap->fm_flags;
207 } 398 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
208}
209 399
210static void worker_free (worker *wrk) 400 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
211{
212 wrk->next->prev = wrk->prev;
213 wrk->prev->next = wrk->next;
214
215 free (wrk);
216}
217
218static volatile unsigned int nreqs, nready, npending;
219static volatile unsigned int max_idle = 4;
220static volatile unsigned int max_outstanding = 0xffffffff;
221static int respipe [2];
222
223static pthread_mutex_t reslock = AIO_MUTEX_INIT;
224static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
225static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
226
227#if WORDACCESS_UNSAFE
228
229static unsigned int get_nready ()
230{
231 unsigned int retval;
232
233 LOCK (reqlock);
234 retval = nready;
235 UNLOCK (reqlock);
236
237 return retval;
238}
239
240static unsigned int get_npending ()
241{
242 unsigned int retval;
243
244 LOCK (reslock);
245 retval = npending;
246 UNLOCK (reslock);
247
248 return retval;
249}
250
251static unsigned int get_nthreads ()
252{
253 unsigned int retval;
254
255 LOCK (wrklock);
256 retval = started;
257 UNLOCK (wrklock);
258
259 return retval;
260}
261
262#else
263
264# define get_nready() nready
265# define get_npending() npending
266# define get_nthreads() started
267
268#endif
269
270/*
271 * a somewhat faster data structure might be nice, but
272 * with 8 priorities this actually needs <20 insns
273 * per shift, the most expensive operation.
274 */
275typedef struct {
276 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
277 int size;
278} reqq;
279
280static reqq req_queue;
281static reqq res_queue;
282
283int reqq_push (reqq *q, aio_req req)
284{
285 int pri = req->pri;
286 req->next = 0;
287
288 if (q->qe[pri])
289 {
290 q->qe[pri]->next = req;
291 q->qe[pri] = req;
292 }
293 else
294 q->qe[pri] = q->qs[pri] = req;
295
296 return q->size++;
297}
298
299aio_req reqq_shift (reqq *q)
300{
301 int pri;
302
303 if (!q->size)
304 return 0; 401 return;
305 402
306 --q->size; 403 if (!incmap->fm_mapped_extents)
404 goto done;
307 405
308 for (pri = NUM_PRI; pri--; ) 406 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
309 { 407 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
310 aio_req req = q->qs[pri]; 408 errno = ENOMEM;
311
312 if (req) 409 if (!fiemap)
410 return;
411
412 req->ptr1 = fiemap;
413
414 for (count = 0; count < incmap->fm_mapped_extents; ++count)
313 { 415 {
314 if (!(q->qs[pri] = req->next)) 416 struct fiemap_extent *e = incmap->fm_extents + count;
315 q->qe[pri] = 0;
316 417
317 return req; 418 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
419
420 if (e->fe_logical >= end_offset)
421 goto done;
422
423 if (e->fe_flags & FIEMAP_EXTENT_LAST)
424 goto done;
425
318 } 426 }
319 } 427 }
320 428
321 abort (); 429done:
322} 430 req->result = 0;
323 431
324static int poll_cb (); 432#else
325static void req_invoke (aio_req req); 433 errno = ENOSYS;
434#endif
435}
436
437/*****************************************************************************/
438
439static int close_fd; /* dummy fd to close fds via dup2 */
440
441#if HAVE_STATX
442static struct statx stx;
443#define statx_offsetof(member) offsetof (struct statx, member)
444#define eio__statx statx
445#else
446#define statx_offsetof(member) 0
447#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
448#endif
449
450enum {
451 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
452};
453
454typedef eio_req *aio_req;
455typedef eio_req *aio_req_ornot;
456typedef eio_wd aio_wd;
457
458static SV *on_next_submit;
459static int next_pri = EIO_PRI_DEFAULT;
460static int max_outstanding;
461
462static s_epipe respipe;
463
326static void req_free (aio_req req); 464static void req_destroy (aio_req req);
327static void req_cancel (aio_req req); 465static void req_cancel (aio_req req);
328 466
467static void
468want_poll (void)
469{
470 /* write a dummy byte to the pipe so fh becomes ready */
471 s_epipe_signal (&respipe);
472}
473
474static void
475done_poll (void)
476{
477 /* read any signals sent by the worker threads */
478 s_epipe_drain (&respipe);
479}
480
329/* must be called at most once */ 481/* must be called at most once */
330static SV *req_sv (aio_req req, const char *klass) 482ecb_noinline
483static SV *
484req_sv (aio_req req, HV *stash)
331{ 485{
332 if (!req->self) 486 if (!req->self)
333 { 487 {
334 req->self = (SV *)newHV (); 488 req->self = (SV *)newHV ();
335 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 489 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
336 } 490 }
337 491
338 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 492 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
339} 493}
340 494
341static aio_req SvAIO_REQ (SV *sv) 495static SV *
496newSVaio_wd (aio_wd wd)
497{
498 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
499}
500
501ecb_noinline
502static aio_req
503SvAIO_REQ (SV *sv)
342{ 504{
343 MAGIC *mg; 505 MAGIC *mg;
344 506
345 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 507 if (!SvROK (sv)
508 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
509 || (SvSTASH (SvRV (sv)) != aio_grp_stash
510 && SvSTASH (SvRV (sv)) != aio_req_stash
511 && !sv_derived_from (sv, "IO::AIO::REQ")))
346 croak ("object of class " AIO_REQ_KLASS " expected"); 512 croak ("object of class IO::AIO::REQ expected");
347 513
348 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 514 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
349 515
350 return mg ? (aio_req)mg->mg_ptr : 0; 516 return mg ? (aio_req)mg->mg_ptr : 0;
351} 517}
352 518
519static aio_wd
520SvAIO_WD (SV *sv)
521{
522 if (!SvROK (sv)
523 || SvTYPE (SvRV (sv)) != SVt_PVMG
524 || SvSTASH (SvRV (sv)) != aio_wd_stash)
525 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
526
527 return (aio_wd)(long)SvIVX (SvRV (sv));
528}
529
530static SV *
531newmortalFH (int fd, int flags)
532{
533 if (fd < 0)
534 return &PL_sv_undef;
535
536 GV *gv = (GV *)sv_newmortal ();
537 char sym[64];
538 int symlen;
539
540 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
541 gv_init (gv, aio_stash, sym, symlen, 0);
542
543 symlen = snprintf (
544 sym,
545 sizeof (sym),
546 "%s&=%d",
547 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
548 fd
549 );
550
551 return do_open (gv, sym, symlen, 0, 0, 0, 0)
552 ? (SV *)gv : &PL_sv_undef;
553}
554
555static void
353static void aio_grp_feed (aio_req grp) 556aio_grp_feed (aio_req grp)
354{ 557{
355 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED)) 558 if (grp->sv2 && SvOK (grp->sv2))
356 { 559 {
357 int old_len = grp->size;
358
359 if (grp->sv2 && SvOK (grp->sv2))
360 {
361 dSP; 560 dSP;
362 561
363 ENTER; 562 ENTER;
364 SAVETMPS; 563 SAVETMPS;
365 PUSHMARK (SP); 564 PUSHMARK (SP);
366 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 565 XPUSHs (req_sv (grp, aio_grp_stash));
367 PUTBACK; 566 PUTBACK;
368 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 567 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
369 SPAGAIN; 568 SPAGAIN;
370 FREETMPS; 569 FREETMPS;
371 LEAVE; 570 LEAVE;
372 }
373
374 /* stop if no progress has been made */
375 if (old_len == grp->size)
376 {
377 SvREFCNT_dec (grp->sv2);
378 grp->sv2 = 0;
379 break;
380 }
381 } 571 }
382} 572}
383 573
384static void aio_grp_dec (aio_req grp) 574ecb_noinline
575static void
576req_submit (eio_req *req)
385{ 577{
386 --grp->size; 578 eio_submit (req);
387 579
388 /* call feeder, if applicable */ 580 if (expect_false (on_next_submit))
389 aio_grp_feed (grp);
390
391 /* finish, if done */
392 if (!grp->size && grp->int1)
393 { 581 {
394 req_invoke (grp); 582 dSP;
395 req_free (grp); 583 SV *cb = sv_2mortal (on_next_submit);
584
585 on_next_submit = 0;
586
587 PUSHMARK (SP);
588 PUTBACK;
589 call_sv (cb, G_DISCARD | G_EVAL);
396 } 590 }
397} 591}
398 592
593static int
399static void req_invoke (aio_req req) 594req_invoke (eio_req *req)
400{ 595{
401 dSP;
402
403 if (req->flags & FLAG_SV1_RO_OFF) 596 if (req->flags & FLAG_SV2_RO_OFF)
404 SvREADONLY_off (req->sv1); 597 SvREADONLY_off (req->sv2);
405 598
406 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 599 if (!EIO_CANCELLED (req) && req->callback)
407 { 600 {
601 dSP;
602 static SV *sv_result_cache; /* caches the result integer SV */
603 SV *sv_result;
604
408 ENTER; 605 ENTER;
409 SAVETMPS; 606 SAVETMPS;
410 PUSHMARK (SP); 607 PUSHMARK (SP);
411 EXTEND (SP, 1); 608 EXTEND (SP, 1);
412 609
610 /* do not recreate the result IV from scratch each time */
611 if (expect_true (sv_result_cache))
612 {
613 sv_result = sv_result_cache; sv_result_cache = 0;
614 SvIV_set (sv_result, req->result);
615 SvIOK_only (sv_result);
616 }
617 else
618 {
619 sv_result = newSViv (req->result);
620 SvREADONLY_on (sv_result);
621 }
622
413 switch (req->type) 623 switch (req->type)
414 { 624 {
625 case EIO_WD_OPEN:
626 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
627 break;
628
415 case REQ_READDIR: 629 case EIO_READDIR:
416 { 630 {
417 SV *rv = &PL_sv_undef; 631 SV *rv = &PL_sv_undef;
418 632
419 if (req->result >= 0) 633 if (req->result >= 0)
420 { 634 {
421 int i; 635 int i;
422 char *buf = req->ptr2; 636 char *names = (char *)req->ptr2;
637 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
423 AV *av = newAV (); 638 AV *av = newAV ();
424 639
425 av_extend (av, req->result - 1); 640 av_extend (av, req->result - 1);
426 641
427 for (i = 0; i < req->result; ++i) 642 for (i = 0; i < req->result; ++i)
428 { 643 {
429 SV *sv = newSVpv (buf, 0); 644 if (req->int1 & EIO_READDIR_DENTS)
645 {
646 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
430 647
648 if (req->int1 & EIO_READDIR_CUSTOM2)
649 {
650 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
651 AV *avent = newAV ();
652
653 av_extend (avent, 2);
654
655 if (!sv_type [ent->type])
656 {
657 sv_type [ent->type] = newSViv (ent->type);
658 SvREADONLY_on (sv_type [ent->type]);
659 }
660
661 av_store (avent, 0, namesv);
662 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
663 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
664
665 av_store (av, i, newRV_noinc ((SV *)avent));
666 }
667 else
431 av_store (av, i, sv); 668 av_store (av, i, namesv);
669
670 ++ent;
671 }
672 else
673 {
674 SV *name = newSVpv (names, 0);
675 av_store (av, i, name);
432 buf += SvCUR (sv) + 1; 676 names += SvCUR (name) + 1;
677 }
433 } 678 }
434 679
435 rv = sv_2mortal (newRV_noinc ((SV *)av)); 680 rv = sv_2mortal (newRV_noinc ((SV *)av));
436 } 681 }
437 682
438 PUSHs (rv); 683 PUSHs (rv);
684
685 if (req->int1 & EIO_READDIR_CUSTOM1)
686 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
439 } 687 }
440 break; 688 break;
441 689
442 case REQ_OPEN: 690 case EIO_OPEN:
691 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
692 break;
693
694 case EIO_STATVFS:
695 case EIO_FSTATVFS:
443 { 696 {
444 /* convert fd to fh */ 697 SV *rv = &PL_sv_undef;
445 SV *fh; 698
699#ifndef _WIN32
700 if (req->result >= 0)
701 {
702 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
703 HV *hv = newHV ();
704 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
705 * chooses to make it a struct.
706 */
707 unsigned long fsid = 0;
708 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
446 709
447 PUSHs (sv_2mortal (newSViv (req->result))); 710 rv = sv_2mortal (newRV_noinc ((SV *)hv));
448 PUTBACK;
449 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
450 SPAGAIN;
451 711
452 fh = SvREFCNT_inc (POPs); 712 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
713 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
714 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
715 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
716 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
717 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
718 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
719 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
720 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
721 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
722 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
723 }
724#endif
453 725
454 PUSHMARK (SP); 726 PUSHs (rv);
455 XPUSHs (sv_2mortal (fh));
456 } 727 }
728
457 break; 729 break;
458 730
459 case REQ_GROUP: 731 case EIO_GROUP:
460 req->int1 = 2; /* mark group as finished */ 732 req->int1 = 2; /* mark group as finished */
461 733
462 if (req->sv1) 734 if (req->sv1)
463 { 735 {
464 int i; 736 int i;
… …
468 for (i = 0; i <= AvFILL (av); ++i) 740 for (i = 0; i <= AvFILL (av); ++i)
469 PUSHs (*av_fetch (av, i, 0)); 741 PUSHs (*av_fetch (av, i, 0));
470 } 742 }
471 break; 743 break;
472 744
473 case REQ_NOP: 745 case EIO_NOP:
474 case REQ_BUSY: 746 case EIO_BUSY:
475 break; 747 break;
476 748
477 case REQ_READLINK: 749 case EIO_READLINK:
750 case EIO_REALPATH:
478 if (req->result > 0) 751 if (req->result > 0)
752 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
753 break;
754
755 case EIO_STAT:
756 case EIO_LSTAT:
757 case EIO_FSTAT:
758 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
759
760 if (!(PL_laststatval = req->result))
761 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
762 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
763
764 PUSHs (sv_result);
765 break;
766
767 case EIO_SEEK:
768 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
769 break;
770
771 case EIO_READ:
772 {
773 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
774 *SvEND (req->sv2) = 0;
775 SvPOK_only (req->sv2);
776 SvSETMAGIC (req->sv2);
777 PUSHs (sv_result);
778 }
779 break;
780
781 case EIO_SLURP:
782 {
783 if (req->result >= 0)
784 {
785 /* if length was originally not known, we steal the malloc'ed memory */
786 if (req->flags & EIO_FLAG_PTR2_FREE)
787 {
788 req->flags &= ~EIO_FLAG_PTR2_FREE;
789 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
790 }
791 else
792 {
793 SvCUR_set (req->sv2, req->result);
794 *SvEND (req->sv2) = 0;
795 SvPOK_only (req->sv2);
796 }
797
798 SvSETMAGIC (req->sv2);
799 }
800
801 PUSHs (sv_result);
802 }
803 break;
804
805 case EIO_CUSTOM:
806 if (req->feed == fiemap)
479 { 807 {
480 SvCUR_set (req->sv1, req->result); 808#if HAVE_FIEMAP
481 *SvEND (req->sv1) = 0;
482 PUSHs (req->sv1); 809 if (!req->result)
810 {
811 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
812
813 if (fiemap->fm_extent_count)
814 {
815 AV *av = newAV ();
816 int i;
817
818 while (fiemap->fm_mapped_extents)
819 {
820 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
821 AV *ext_av = newAV ();
822
823 av_store (ext_av, 3, newSVuv (extent->fe_flags));
824 av_store (ext_av, 2, newSVval64 (extent->fe_length));
825 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
826 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
827
828 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
829 }
830
831 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
832 }
833 else
834 {
835 SvIV_set (sv_result, fiemap->fm_mapped_extents);
836 PUSHs (sv_result);
837 }
838 }
839#endif
483 } 840 }
841 else
842 PUSHs (sv_result);
484 break; 843 break;
485 844
486 case REQ_STAT: 845#if 0
487 case REQ_LSTAT: 846 case EIO_CLOSE:
488 case REQ_FSTAT: 847 PerlIOUnix_refcnt_dec (req->int1);
489 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
490 PL_laststatval = req->result;
491 PL_statcache = *(Stat_t *)(req->ptr2);
492 PUSHs (sv_2mortal (newSViv (req->result)));
493 break; 848 break;
849#endif
494 850
495 case REQ_READ: 851 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
496 SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0)); 852 if (req->result > 0)
497 *SvEND (req->sv1) = 0; 853 SvIV_set (sv_result, 0);
498 PUSHs (sv_2mortal (newSViv (req->result))); 854 /* FALLTHROUGH */
499 break;
500 855
501 default: 856 default:
502 PUSHs (sv_2mortal (newSViv (req->result))); 857 PUSHs (sv_result);
503 break; 858 break;
504 } 859 }
505 860
506 errno = req->errorno; 861 errno = req->errorno;
507 862
508 PUTBACK; 863 PUTBACK;
509 call_sv (req->callback, G_VOID | G_EVAL); 864 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
510 SPAGAIN; 865 SPAGAIN;
866
867 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
868 SvREFCNT_dec (sv_result);
869 else
870 sv_result_cache = sv_result;
511 871
512 FREETMPS; 872 FREETMPS;
513 LEAVE; 873 LEAVE;
874
875 PUTBACK;
514 } 876 }
515 877
516 if (req->grp) 878 return !!SvTRUE (ERRSV);
517 {
518 aio_req grp = req->grp;
519
520 /* unlink request */
521 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
522 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
523
524 if (grp->grp_first == req)
525 grp->grp_first = req->grp_next;
526
527 aio_grp_dec (grp);
528 }
529
530 if (SvTRUE (ERRSV))
531 {
532 req_free (req);
533 croak (0);
534 }
535} 879}
536 880
537static void req_free (aio_req req) 881static void
882req_destroy (aio_req req)
538{ 883{
539 if (req->self) 884 if (req->self)
540 { 885 {
541 sv_unmagic (req->self, PERL_MAGIC_ext); 886 sv_unmagic (req->self, PERL_MAGIC_ext);
542 SvREFCNT_dec (req->self); 887 SvREFCNT_dec (req->self);
543 } 888 }
544 889
545 SvREFCNT_dec (req->fh);
546 SvREFCNT_dec (req->sv1); 890 SvREFCNT_dec (req->sv1);
547 SvREFCNT_dec (req->sv2); 891 SvREFCNT_dec (req->sv2);
892 SvREFCNT_dec (req->sv3);
893 SvREFCNT_dec (req->sv4);
548 SvREFCNT_dec (req->callback); 894 SvREFCNT_dec (req->callback);
549 895
550 if (req->flags & FLAG_PTR2_FREE)
551 free (req->ptr2);
552
553 Safefree (req); 896 free (req);
554} 897}
555 898
899static void
556static void req_cancel_subs (aio_req grp) 900req_cancel_subs (aio_req grp)
557{ 901{
558 aio_req sub;
559
560 if (grp->type != REQ_GROUP) 902 if (grp->type != EIO_GROUP)
561 return; 903 return;
562 904
563 SvREFCNT_dec (grp->sv2); 905 SvREFCNT_dec (grp->sv2);
564 grp->sv2 = 0; 906 grp->sv2 = 0;
565 907
566 for (sub = grp->grp_first; sub; sub = sub->grp_next) 908 eio_grp_cancel (grp);
567 req_cancel (sub);
568} 909}
569 910
570static void req_cancel (aio_req req) 911ecb_cold
912static void
913create_respipe (void)
571{ 914{
572 req->flags |= FLAG_CANCELLED; 915 if (s_epipe_renew (&respipe))
573 916 croak ("IO::AIO: unable to initialize result pipe");
574 req_cancel_subs (req);
575} 917}
576 918
577static void *aio_proc(void *arg); 919static void
578 920poll_wait (void)
579static void start_thread (void)
580{ 921{
581 sigset_t fullsigset, oldsigset;
582 pthread_attr_t attr;
583
584 worker *wrk = calloc (1, sizeof (worker));
585
586 if (!wrk)
587 croak ("unable to allocate worker thread data");
588
589 pthread_attr_init (&attr);
590 pthread_attr_setstacksize (&attr, STACKSIZE);
591 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
592#ifdef PTHREAD_SCOPE_PROCESS
593 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
594#endif
595
596 sigfillset (&fullsigset);
597
598 LOCK (wrklock);
599 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
600
601 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
602 {
603 wrk->prev = &wrk_first;
604 wrk->next = wrk_first.next;
605 wrk_first.next->prev = wrk;
606 wrk_first.next = wrk;
607 ++started;
608 }
609 else
610 free (wrk);
611
612 sigprocmask (SIG_SETMASK, &oldsigset, 0);
613 UNLOCK (wrklock);
614}
615
616static void maybe_start_thread ()
617{
618 if (get_nthreads () >= wanted)
619 return;
620
621 /* todo: maybe use idle here, but might be less exact */
622 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
623 return;
624
625 start_thread ();
626}
627
628static void req_send (aio_req req)
629{
630 ++nreqs;
631
632 LOCK (reqlock);
633 ++nready;
634 reqq_push (&req_queue, req);
635 pthread_cond_signal (&reqwait);
636 UNLOCK (reqlock);
637
638 maybe_start_thread ();
639}
640
641static void end_thread (void)
642{
643 aio_req req;
644
645 Newz (0, req, 1, aio_cb);
646
647 req->type = REQ_QUIT;
648 req->pri = PRI_MAX + PRI_BIAS;
649
650 LOCK (reqlock);
651 reqq_push (&req_queue, req);
652 pthread_cond_signal (&reqwait);
653 UNLOCK (reqlock);
654
655 LOCK (wrklock);
656 --started;
657 UNLOCK (wrklock);
658}
659
660static void set_max_idle (int nthreads)
661{
662 if (WORDACCESS_UNSAFE) LOCK (reqlock);
663 max_idle = nthreads <= 0 ? 1 : nthreads;
664 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
665}
666
667static void min_parallel (int nthreads)
668{
669 if (wanted < nthreads)
670 wanted = nthreads;
671}
672
673static void max_parallel (int nthreads)
674{
675 if (wanted > nthreads)
676 wanted = nthreads;
677
678 while (started > wanted)
679 end_thread ();
680}
681
682static void poll_wait ()
683{
684 fd_set rfd;
685
686 while (nreqs) 922 while (eio_nreqs ())
687 { 923 {
688 int size; 924 int size;
689 if (WORDACCESS_UNSAFE) LOCK (reslock); 925
926 X_LOCK (EIO_POOL->reslock);
690 size = res_queue.size; 927 size = EIO_POOL->res_queue.size;
691 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 928 X_UNLOCK (EIO_POOL->reslock);
692 929
693 if (size) 930 if (size)
694 return; 931 return;
695 932
696 maybe_start_thread (); 933 etp_maybe_start_thread (EIO_POOL);
697 934
698 FD_ZERO(&rfd); 935 s_epipe_wait (&respipe);
699 FD_SET(respipe [0], &rfd);
700
701 select (respipe [0] + 1, &rfd, 0, 0, 0);
702 } 936 }
703} 937}
704 938
705static int poll_cb () 939static int
940poll_cb (void)
706{ 941{
707 dSP;
708 int count = 0;
709 int maxreqs = max_poll_reqs;
710 int do_croak = 0;
711 struct timeval tv_start, tv_now;
712 aio_req req;
713
714 if (max_poll_time)
715 gettimeofday (&tv_start, 0);
716
717 for (;;) 942 for (;;)
718 { 943 {
719 for (;;) 944 int res = eio_poll ();
945
946 if (res > 0)
947 croak (0);
948
949 if (!max_outstanding || max_outstanding > eio_nreqs ())
950 return res;
951
952 poll_wait ();
953 }
954}
955
956ecb_cold
957static void
958reinit (void)
959{
960 create_respipe ();
961
962 if (eio_init (want_poll, done_poll) < 0)
963 croak ("IO::AIO: unable to initialise eio library");
964}
965
966/*****************************************************************************/
967
968static SV *
969get_cb (SV *cb_sv)
970{
971 SvGETMAGIC (cb_sv);
972 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
973}
974
975ecb_noinline
976static aio_req ecb_noinline
977dreq (SV *callback)
978{
979 SV *cb_cv;
980 aio_req req;
981 int req_pri = next_pri;
982 next_pri = EIO_PRI_DEFAULT;
983
984 cb_cv = get_cb (callback);
985
986 req = calloc (sizeof (*req), 1);
987 if (!req)
988 croak ("out of memory during eio_req allocation");
989
990 req->callback = SvREFCNT_inc (cb_cv);
991 req->pri = req_pri;
992
993 return req;
994}
995
996#define dREQ \
997 aio_req req = dreq (callback); \
998
999#define REQ_SEND \
1000 PUTBACK; \
1001 req_submit (req); \
1002 SPAGAIN; \
1003 \
1004 if (GIMME_V != G_VOID) \
1005 XPUSHs (req_sv (req, aio_req_stash));
1006
1007/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1008ecb_inline
1009void
1010req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1011{
1012 if (expect_false (SvROK (path)))
1013 {
1014 SV *rv = SvRV (path);
1015 SV *wdob;
1016
1017 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
720 { 1018 {
721 maybe_start_thread (); 1019 path = AvARRAY (rv)[1];
1020 wdob = AvARRAY (rv)[0];
722 1021
723 LOCK (reslock); 1022 if (SvOK (wdob))
724 req = reqq_shift (&res_queue);
725
726 if (req)
727 { 1023 {
728 --npending; 1024 *wd = SvAIO_WD (wdob);
729 1025 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
730 if (!res_queue.size)
731 {
732 /* read any signals sent by the worker threads */
733 char buf [32];
734 while (read (respipe [0], buf, 32) == 32)
735 ;
736 }
737 }
738
739 UNLOCK (reslock);
740
741 if (!req)
742 break;
743
744 --nreqs;
745
746 if (req->type == REQ_GROUP && req->size)
747 {
748 req->int1 = 1; /* mark request as delayed */
749 continue;
750 } 1026 }
751 else 1027 else
752 { 1028 *wd = EIO_INVALID_WD;
753 req_invoke (req);
754
755 count++;
756 }
757
758 req_free (req);
759
760 if (maxreqs && !--maxreqs)
761 break;
762
763 if (max_poll_time)
764 {
765 gettimeofday (&tv_now, 0);
766
767 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
768 break;
769 }
770 } 1029 }
1030 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
1031 {
1032 *wd = (aio_wd)(long)SvIVX (rv);
1033 *wdsv = SvREFCNT_inc_NN (rv);
1034 *ptr = ".";
1035 return; /* path set to "." */
1036 }
1037 else
1038 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
1039 }
771 1040
772 if (nreqs <= max_outstanding) 1041 *pathsv = newSVsv (path);
1042 *ptr = SvPVbyte_nolen (*pathsv);
1043}
1044
1045ecb_noinline
1046static void
1047req_set_path1 (aio_req req, SV *path)
1048{
1049 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
1050}
1051
1052ecb_noinline
1053static void
1054req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1055{
1056 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1057
1058 switch (SvTYPE (rv))
1059 {
1060 case SVt_PVIO:
1061 case SVt_PVLV:
1062 case SVt_PVGV:
1063 req->type = type_fh;
1064 req->sv1 = newSVsv (fh_or_path);
1065 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
773 break; 1066 break;
774 1067
775 poll_wait (); 1068 default:
776 1069 req->type = type_path;
777 ++maxreqs; 1070 req_set_path1 (req, fh_or_path);
1071 break;
778 } 1072 }
779
780 return count;
781}
782
783static void create_pipe ()
784{
785 if (pipe (respipe))
786 croak ("unable to initialize result pipe");
787
788 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
789 croak ("cannot set result pipe to nonblocking mode");
790
791 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
792 croak ("cannot set result pipe to nonblocking mode");
793} 1073}
794 1074
795/*****************************************************************************/ 1075/*****************************************************************************/
796/* work around various missing functions */
797 1076
798#if !HAVE_PREADWRITE 1077static void
799# define pread aio_pread 1078ts_set (struct timespec *ts, NV value)
800# define pwrite aio_pwrite
801
802/*
803 * make our pread/pwrite safe against themselves, but not against
804 * normal read/write by using a mutex. slows down execution a lot,
805 * but that's your problem, not mine.
806 */
807static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
808
809static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
810{ 1079{
811 ssize_t res; 1080 ts->tv_sec = value;
812 off_t ooffset; 1081 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
813
814 LOCK (preadwritelock);
815 ooffset = lseek (fd, 0, SEEK_CUR);
816 lseek (fd, offset, SEEK_SET);
817 res = read (fd, buf, count);
818 lseek (fd, ooffset, SEEK_SET);
819 UNLOCK (preadwritelock);
820
821 return res;
822} 1082}
823 1083
824static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1084static NV
1085ts_get (const struct timespec *ts)
825{ 1086{
826 ssize_t res; 1087 return ts->tv_sec + ts->tv_nsec * 1e-9;
827 off_t ooffset;
828
829 LOCK (preadwritelock);
830 ooffset = lseek (fd, 0, SEEK_CUR);
831 lseek (fd, offset, SEEK_SET);
832 res = write (fd, buf, count);
833 lseek (fd, offset, SEEK_SET);
834 UNLOCK (preadwritelock);
835
836 return res;
837} 1088}
838#endif
839 1089
840#if !HAVE_FDATASYNC 1090/*****************************************************************************/
841# define fdatasync fsync
842#endif
843 1091
844#if !HAVE_READAHEAD 1092XS(boot_IO__AIO) ecb_cold;
845# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
846 1093
847static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 1094MODULE = IO::AIO PACKAGE = IO::AIO
848{
849 dBUF;
850 1095
851 while (count > 0) 1096PROTOTYPES: ENABLE
852 {
853 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
854 1097
855 pread (fd, aio_buf, len, offset); 1098BOOT:
856 offset += len;
857 count -= len;
858 }
859
860 errno = 0;
861}
862
863#endif
864
865#if !HAVE_READDIR_R
866# define readdir_r aio_readdir_r
867
868static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
869
870static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
871{ 1099{
872 struct dirent *e; 1100 static const struct {
873 int errorno; 1101 const char *name;
1102 IV iv;
1103 } *civ, const_iv[] = {
1104# define const_niv(name, value) { # name, (IV) value },
1105# define const_iv(name) { # name, (IV) name },
1106# define const_eio(name) { # name, (IV) EIO_ ## name },
874 1107
875 LOCK (readdirlock); 1108 /* you have to re-run ./gendef0 after adding/removing any constants here */
1109 /* the first block can be undef if missing */
1110 const_iv (ENOSYS)
1111 const_iv (EXDEV)
1112 const_iv (EBADR)
876 1113
877 e = readdir (dirp); 1114 /* for lseek */
878 errorno = errno; 1115 const_iv (SEEK_DATA)
1116 const_iv (SEEK_HOLE)
879 1117
880 if (e) 1118 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
881 { 1119 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
882 *res = ent; 1120 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
883 strcpy (ent->d_name, e->d_name); 1121 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
884 } 1122 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
885 else 1123 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
886 *res = 0;
887 1124
888 UNLOCK (readdirlock); 1125 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1126 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1127 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1128 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1129 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
889 1130
890 errno = errorno; 1131 /* the second block will be 0 when missing */
891 return e ? 0 : -1; 1132 const_iv (O_ACCMODE)
892}
893#endif
894 1133
895/* sendfile always needs emulation */ 1134 const_iv (O_RDONLY)
896static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) 1135 const_iv (O_WRONLY)
897{ 1136 const_iv (O_RDWR)
898 ssize_t res; 1137 const_iv (O_CREAT)
1138 const_iv (O_TRUNC)
1139 const_iv (O_EXCL)
1140 const_iv (O_APPEND)
899 1141
900 if (!count) 1142 const_iv (O_ASYNC)
901 return 0; 1143 const_iv (O_DIRECT)
1144 const_iv (O_NOATIME)
902 1145
903#if HAVE_SENDFILE 1146 const_iv (O_CLOEXEC)
904# if __linux 1147 const_iv (O_NOCTTY)
905 res = sendfile (ofd, ifd, &offset, count); 1148 const_iv (O_NOFOLLOW)
1149 const_iv (O_NONBLOCK)
1150 const_iv (O_EXEC)
1151 const_iv (O_SEARCH)
1152 const_iv (O_DIRECTORY)
1153 const_iv (O_DSYNC)
1154 const_iv (O_RSYNC)
1155 const_iv (O_SYNC)
1156 const_iv (O_PATH)
1157 const_iv (O_TMPFILE)
1158 const_iv (O_TTY_INIT)
906 1159
907# elif __freebsd 1160 const_iv (S_IFIFO)
908 /* 1161 const_iv (S_IFCHR)
909 * Of course, the freebsd sendfile is a dire hack with no thoughts 1162 const_iv (S_IFBLK)
910 * wasted on making it similar to other I/O functions. 1163 const_iv (S_IFLNK)
911 */ 1164 const_iv (S_IFREG)
1165 const_iv (S_IFDIR)
1166 const_iv (S_IFWHT)
1167 const_iv (S_IFSOCK)
1168 const_iv (S_IFMT)
1169
1170 const_iv (ST_RDONLY)
1171 const_iv (ST_NOSUID)
1172 const_iv (ST_NODEV)
1173 const_iv (ST_NOEXEC)
1174 const_iv (ST_SYNCHRONOUS)
1175 const_iv (ST_MANDLOCK)
1176 const_iv (ST_WRITE)
1177 const_iv (ST_APPEND)
1178 const_iv (ST_IMMUTABLE)
1179 const_iv (ST_NOATIME)
1180 const_iv (ST_NODIRATIME)
1181 const_iv (ST_RELATIME)
1182
1183 const_iv (PROT_NONE)
1184 const_iv (PROT_EXEC)
1185 const_iv (PROT_READ)
1186 const_iv (PROT_WRITE)
1187
1188 const_iv (MAP_PRIVATE)
1189 const_iv (MAP_SHARED)
1190 const_iv (MAP_FIXED)
1191 const_iv (MAP_ANONYMOUS)
1192
1193 /* linuxish */
1194 const_iv (MAP_LOCKED)
1195 const_iv (MAP_NORESERVE)
1196 const_iv (MAP_POPULATE)
1197 const_iv (MAP_NONBLOCK)
1198 const_iv (MAP_GROWSDOWN)
1199 const_iv (MAP_32BIT)
1200 const_iv (MAP_HUGETLB)
1201 const_iv (MAP_STACK)
1202
1203 const_iv (MREMAP_MAYMOVE)
1204 const_iv (MREMAP_FIXED)
1205
1206 const_iv (MSG_CMSG_CLOEXEC)
1207 const_iv (SOCK_CLOEXEC)
1208
1209 const_iv (F_DUPFD_CLOEXEC)
1210
1211 const_iv (F_ADD_SEALS)
1212 const_iv (F_GET_SEALS)
1213 const_iv (F_SEAL_SEAL)
1214 const_iv (F_SEAL_SHRINK)
1215 const_iv (F_SEAL_GROW)
1216 const_iv (F_SEAL_WRITE)
1217
1218 const_iv (F_OFD_GETLK)
1219 const_iv (F_OFD_SETLK)
1220 const_iv (F_OFD_GETLKW)
1221
1222 const_iv (FIFREEZE)
1223 const_iv (FITHAW)
1224 const_iv (FITRIM)
1225 const_iv (FICLONE)
1226 const_iv (FICLONERANGE)
1227 const_iv (FIDEDUPERANGE)
1228
1229 const_iv (FS_IOC_GETFLAGS)
1230 const_iv (FS_IOC_SETFLAGS)
1231 const_iv (FS_IOC_GETVERSION)
1232 const_iv (FS_IOC_SETVERSION)
1233 const_iv (FS_IOC_FIEMAP)
1234 const_iv (FS_IOC_FSGETXATTR)
1235 const_iv (FS_IOC_FSSETXATTR)
1236 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1237 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1238 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1239
1240 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1241
1242 const_iv (FS_SECRM_FL)
1243 const_iv (FS_UNRM_FL)
1244 const_iv (FS_COMPR_FL)
1245 const_iv (FS_SYNC_FL)
1246 const_iv (FS_IMMUTABLE_FL)
1247 const_iv (FS_APPEND_FL)
1248 const_iv (FS_NODUMP_FL)
1249 const_iv (FS_NOATIME_FL)
1250 const_iv (FS_DIRTY_FL)
1251 const_iv (FS_COMPRBLK_FL)
1252 const_iv (FS_NOCOMP_FL)
1253 const_iv (FS_ENCRYPT_FL)
1254 const_iv (FS_BTREE_FL)
1255 const_iv (FS_INDEX_FL)
1256 const_iv (FS_JOURNAL_DATA_FL)
1257 const_iv (FS_NOTAIL_FL)
1258 const_iv (FS_DIRSYNC_FL)
1259 const_iv (FS_TOPDIR_FL)
1260 const_iv (FS_FL_USER_MODIFIABLE)
1261
1262 const_iv (FS_XFLAG_REALTIME)
1263 const_iv (FS_XFLAG_PREALLOC)
1264 const_iv (FS_XFLAG_IMMUTABLE)
1265 const_iv (FS_XFLAG_APPEND)
1266 const_iv (FS_XFLAG_SYNC)
1267 const_iv (FS_XFLAG_NOATIME)
1268 const_iv (FS_XFLAG_NODUMP)
1269 const_iv (FS_XFLAG_RTINHERIT)
1270 const_iv (FS_XFLAG_PROJINHERIT)
1271 const_iv (FS_XFLAG_NOSYMLINKS)
1272 const_iv (FS_XFLAG_EXTSIZE)
1273 const_iv (FS_XFLAG_EXTSZINHERIT)
1274 const_iv (FS_XFLAG_NODEFRAG)
1275 const_iv (FS_XFLAG_FILESTREAM)
1276 const_iv (FS_XFLAG_DAX)
1277 const_iv (FS_XFLAG_HASATTR)
1278
1279 const_iv (FIEMAP_FLAG_SYNC)
1280 const_iv (FIEMAP_FLAG_XATTR)
1281 const_iv (FIEMAP_FLAGS_COMPAT)
1282 const_iv (FIEMAP_EXTENT_LAST)
1283 const_iv (FIEMAP_EXTENT_UNKNOWN)
1284 const_iv (FIEMAP_EXTENT_DELALLOC)
1285 const_iv (FIEMAP_EXTENT_ENCODED)
1286 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1287 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1288 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1289 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1290 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1291 const_iv (FIEMAP_EXTENT_MERGED)
1292 const_iv (FIEMAP_EXTENT_SHARED)
1293
1294 const_iv (SPLICE_F_MOVE)
1295 const_iv (SPLICE_F_NONBLOCK)
1296 const_iv (SPLICE_F_MORE)
1297 const_iv (SPLICE_F_GIFT)
1298
1299 const_iv (EFD_CLOEXEC)
1300 const_iv (EFD_NONBLOCK)
1301 const_iv (EFD_SEMAPHORE)
1302
1303 const_iv (MFD_CLOEXEC)
1304 const_iv (MFD_ALLOW_SEALING)
1305 const_iv (MFD_HUGETLB)
1306
1307 const_iv (CLOCK_REALTIME)
1308 const_iv (CLOCK_MONOTONIC)
1309 const_iv (CLOCK_BOOTTIME)
1310 const_iv (CLOCK_REALTIME_ALARM)
1311 const_iv (CLOCK_BOOTTIME_ALARM)
1312
1313 const_iv (TFD_NONBLOCK)
1314 const_iv (TFD_CLOEXEC)
1315
1316 const_iv (TFD_TIMER_ABSTIME)
1317 const_iv (TFD_TIMER_CANCEL_ON_SET)
1318
1319 const_iv (STATX_TYPE)
1320 const_iv (STATX_MODE)
1321 const_iv (STATX_NLINK)
1322 const_iv (STATX_UID)
1323 const_iv (STATX_GID)
1324 const_iv (STATX_ATIME)
1325 const_iv (STATX_MTIME)
1326 const_iv (STATX_CTIME)
1327 const_iv (STATX_INO)
1328 const_iv (STATX_SIZE)
1329 const_iv (STATX_BLOCKS)
1330 const_iv (STATX_BASIC_STATS)
1331 const_iv (STATX_ALL)
1332 const_iv (STATX_BTIME)
1333 const_iv (STATX_ATTR_COMPRESSED)
1334 const_iv (STATX_ATTR_IMMUTABLE)
1335 const_iv (STATX_ATTR_APPEND)
1336 const_iv (STATX_ATTR_NODUMP)
1337 const_iv (STATX_ATTR_ENCRYPTED)
1338 const_iv (STATX_ATTR_AUTOMOUNT)
1339
1340 const_iv (AT_FDCWD)
1341 const_iv (AT_SYMLINK_NOFOLLOW)
1342 const_iv (AT_EACCESS)
1343 const_iv (AT_REMOVEDIR)
1344 const_iv (AT_SYMLINK_FOLLOW)
1345 const_iv (AT_NO_AUTOMOUNT)
1346 const_iv (AT_EMPTY_PATH)
1347 const_iv (AT_STATX_SYNC_TYPE)
1348 const_iv (AT_STATX_AS_STAT)
1349 const_iv (AT_STATX_FORCE_SYNC)
1350 const_iv (AT_STATX_DONT_SYNC)
1351 const_iv (AT_RECURSIVE)
1352
1353 const_iv (OPEN_TREE_CLONE)
1354
1355 const_iv (FSOPEN_CLOEXEC)
1356
1357 const_iv (FSPICK_CLOEXEC)
1358 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1359 const_iv (FSPICK_NO_AUTOMOUNT)
1360 const_iv (FSPICK_EMPTY_PATH)
1361
1362 const_iv (MOVE_MOUNT_F_SYMLINKS)
1363 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1364 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1365 const_iv (MOVE_MOUNT_T_SYMLINKS)
1366 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1367 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1368
1369 /* these are libeio constants, and are independent of gendef0 */
1370 const_eio (SEEK_SET)
1371 const_eio (SEEK_CUR)
1372 const_eio (SEEK_END)
1373
1374 const_eio (MCL_FUTURE)
1375 const_eio (MCL_CURRENT)
1376 const_eio (MCL_ONFAULT)
1377
1378 const_eio (MS_ASYNC)
1379 const_eio (MS_INVALIDATE)
1380 const_eio (MS_SYNC)
1381
1382 const_eio (MT_MODIFY)
1383
1384 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1385 const_eio (SYNC_FILE_RANGE_WRITE)
1386 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1387
1388 const_eio (FALLOC_FL_KEEP_SIZE)
1389 const_eio (FALLOC_FL_PUNCH_HOLE)
1390 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1391 const_eio (FALLOC_FL_ZERO_RANGE)
1392 const_eio (FALLOC_FL_INSERT_RANGE)
1393 const_eio (FALLOC_FL_UNSHARE_RANGE)
1394
1395 const_eio (RENAME_NOREPLACE)
1396 const_eio (RENAME_EXCHANGE)
1397 const_eio (RENAME_WHITEOUT)
1398
1399 const_eio (READDIR_DENTS)
1400 const_eio (READDIR_DIRS_FIRST)
1401 const_eio (READDIR_STAT_ORDER)
1402 const_eio (READDIR_FOUND_UNKNOWN)
1403
1404 const_eio (DT_UNKNOWN)
1405 const_eio (DT_FIFO)
1406 const_eio (DT_CHR)
1407 const_eio (DT_DIR)
1408 const_eio (DT_BLK)
1409 const_eio (DT_REG)
1410 const_eio (DT_LNK)
1411 const_eio (DT_SOCK)
1412 const_eio (DT_WHT)
1413 };
1414
1415 aio_stash = gv_stashpv ("IO::AIO" , 1);
1416 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1417 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1418 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1419
1420 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1421 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1422
1423 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1424
1425 /* allocate dummy pipe fd for aio_close */
912 { 1426 {
913 off_t sbytes; 1427 int pipefd [2];
914 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
915 1428
916 if (res < 0 && sbytes) 1429 if (
917 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ 1430#ifdef _WIN32
918 res = sbytes; 1431 _pipe (pipefd, 1, _O_BINARY) < 0
1432#else
1433 pipe (pipefd) < 0
1434 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1435#endif
1436 || close (pipefd [1]) < 0
1437 )
1438 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1439
1440 close_fd = pipefd [0];
919 } 1441 }
920 1442
921# elif __hpux 1443 reinit ();
922 res = sendfile (ofd, ifd, offset, count, 0, 0);
923
924# elif __solaris
925 {
926 struct sendfilevec vec;
927 size_t sbytes;
928
929 vec.sfv_fd = ifd;
930 vec.sfv_flag = 0;
931 vec.sfv_off = offset;
932 vec.sfv_len = count;
933
934 res = sendfilev (ofd, &vec, 1, &sbytes);
935
936 if (res < 0 && sbytes)
937 res = sbytes;
938 }
939
940# endif
941#else
942 res = -1;
943 errno = ENOSYS;
944#endif
945
946 if (res < 0
947 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
948#if __solaris
949 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
950#endif
951 )
952 )
953 {
954 /* emulate sendfile. this is a major pain in the ass */
955 dBUF;
956
957 res = 0;
958
959 while (count)
960 {
961 ssize_t cnt;
962
963 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
964
965 if (cnt <= 0)
966 {
967 if (cnt && !res) res = -1;
968 break;
969 }
970
971 cnt = write (ofd, aio_buf, cnt);
972
973 if (cnt <= 0)
974 {
975 if (cnt && !res) res = -1;
976 break;
977 }
978
979 offset += cnt;
980 res += cnt;
981 count -= cnt;
982 }
983 }
984
985 return res;
986} 1444}
987 1445
988/* read a full directory */
989static void scandir_ (aio_req req, worker *self)
990{
991 DIR *dirp;
992 union
993 {
994 struct dirent d;
995 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
996 } *u;
997 struct dirent *entp;
998 char *name, *names;
999 int memlen = 4096;
1000 int memofs = 0;
1001 int res = 0;
1002 int errorno;
1003
1004 LOCK (wrklock);
1005 self->dirp = dirp = opendir (req->ptr1);
1006 self->dbuf = u = malloc (sizeof (*u));
1007 req->flags |= FLAG_PTR2_FREE;
1008 req->ptr2 = names = malloc (memlen);
1009 UNLOCK (wrklock);
1010
1011 if (dirp && u && names)
1012 for (;;)
1013 {
1014 errno = 0;
1015 readdir_r (dirp, &u->d, &entp);
1016
1017 if (!entp)
1018 break;
1019
1020 name = entp->d_name;
1021
1022 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1023 {
1024 int len = strlen (name) + 1;
1025
1026 res++;
1027
1028 while (memofs + len > memlen)
1029 {
1030 memlen *= 2;
1031 LOCK (wrklock);
1032 req->ptr2 = names = realloc (names, memlen);
1033 UNLOCK (wrklock);
1034
1035 if (!names)
1036 break;
1037 }
1038
1039 memcpy (names + memofs, name, len);
1040 memofs += len;
1041 }
1042 }
1043
1044 if (errno)
1045 res = -1;
1046
1047 req->result = res;
1048}
1049
1050/*****************************************************************************/
1051
1052static void *aio_proc (void *thr_arg)
1053{
1054 aio_req req;
1055 struct timespec ts;
1056 worker *self = (worker *)thr_arg;
1057
1058 /* try to distribute timeouts somewhat evenly */
1059 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1060 * (1000000000UL / 1024UL);
1061
1062 for (;;)
1063 {
1064 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1065
1066 LOCK (reqlock);
1067
1068 for (;;)
1069 {
1070 self->req = req = reqq_shift (&req_queue);
1071
1072 if (req)
1073 break;
1074
1075 ++idle;
1076
1077 if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)
1078 == ETIMEDOUT)
1079 {
1080 if (idle > max_idle)
1081 {
1082 --idle;
1083 UNLOCK (reqlock);
1084 LOCK (wrklock);
1085 --started;
1086 UNLOCK (wrklock);
1087 goto quit;
1088 }
1089
1090 /* we are allowed to idle, so do so without any timeout */
1091 pthread_cond_wait (&reqwait, &reqlock);
1092 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1093 }
1094
1095 --idle;
1096 }
1097
1098 --nready;
1099
1100 UNLOCK (reqlock);
1101
1102 errno = 0; /* strictly unnecessary */
1103
1104 if (!(req->flags & FLAG_CANCELLED))
1105 switch (req->type)
1106 {
1107 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1108 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1109
1110 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1111 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1112
1113 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1114 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1115 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1116
1117 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1118 case REQ_CLOSE: req->result = close (req->int1); break;
1119 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1120 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1121 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1122 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1123 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1124 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1125 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1126
1127 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1128 case REQ_FSYNC: req->result = fsync (req->int1); break;
1129 case REQ_READDIR: scandir_ (req, self); break;
1130
1131 case REQ_BUSY:
1132 {
1133 struct timeval tv;
1134
1135 tv.tv_sec = req->int1;
1136 tv.tv_usec = req->int2;
1137
1138 req->result = select (0, 0, 0, 0, &tv);
1139 }
1140
1141 case REQ_GROUP:
1142 case REQ_NOP:
1143 break;
1144
1145 case REQ_QUIT:
1146 goto quit;
1147
1148 default:
1149 req->result = ENOSYS;
1150 break;
1151 }
1152
1153 req->errorno = errno;
1154
1155 LOCK (reslock);
1156
1157 ++npending;
1158
1159 if (!reqq_push (&res_queue, req))
1160 /* write a dummy byte to the pipe so fh becomes ready */
1161 write (respipe [1], &respipe, 1);
1162
1163 self->req = 0;
1164 worker_clear (self);
1165
1166 UNLOCK (reslock);
1167 }
1168
1169quit:
1170 LOCK (wrklock);
1171 worker_free (self);
1172 UNLOCK (wrklock);
1173
1174 return 0;
1175}
1176
1177/*****************************************************************************/
1178
1179static void atfork_prepare (void)
1180{
1181 LOCK (wrklock);
1182 LOCK (reqlock);
1183 LOCK (reslock);
1184#if !HAVE_PREADWRITE
1185 LOCK (preadwritelock);
1186#endif
1187#if !HAVE_READDIR_R
1188 LOCK (readdirlock);
1189#endif
1190}
1191
1192static void atfork_parent (void)
1193{
1194#if !HAVE_READDIR_R
1195 UNLOCK (readdirlock);
1196#endif
1197#if !HAVE_PREADWRITE
1198 UNLOCK (preadwritelock);
1199#endif
1200 UNLOCK (reslock);
1201 UNLOCK (reqlock);
1202 UNLOCK (wrklock);
1203}
1204
1205static void atfork_child (void)
1206{
1207 aio_req prv;
1208
1209 while (prv = reqq_shift (&req_queue))
1210 req_free (prv);
1211
1212 while (prv = reqq_shift (&res_queue))
1213 req_free (prv);
1214
1215 while (wrk_first.next != &wrk_first)
1216 {
1217 worker *wrk = wrk_first.next;
1218
1219 if (wrk->req)
1220 req_free (wrk->req);
1221
1222 worker_clear (wrk);
1223 worker_free (wrk);
1224 }
1225
1226 started = 0;
1227 idle = 0;
1228 nreqs = 0;
1229 nready = 0;
1230 npending = 0;
1231
1232 close (respipe [0]);
1233 close (respipe [1]);
1234 create_pipe ();
1235
1236 atfork_parent ();
1237}
1238
1239#define dREQ \
1240 aio_req req; \
1241 int req_pri = next_pri; \
1242 next_pri = DEFAULT_PRI + PRI_BIAS; \
1243 \
1244 if (SvOK (callback) && !SvROK (callback)) \
1245 croak ("callback must be undef or of reference type"); \
1246 \
1247 Newz (0, req, 1, aio_cb); \
1248 if (!req) \
1249 croak ("out of memory during aio_req allocation"); \
1250 \
1251 req->callback = newSVsv (callback); \
1252 req->pri = req_pri
1253
1254#define REQ_SEND \
1255 req_send (req); \
1256 \
1257 if (GIMME_V != G_VOID) \
1258 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1259
1260MODULE = IO::AIO PACKAGE = IO::AIO
1261
1262PROTOTYPES: ENABLE
1263
1264BOOT:
1265{
1266 HV *stash = gv_stashpv ("IO::AIO", 1);
1267
1268 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1269 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1270 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1271 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1272 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1273 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1274
1275 create_pipe ();
1276 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1277}
1278
1279void 1446void
1447reinit ()
1448 PROTOTYPE:
1449
1450void
1280max_poll_reqs (int nreqs) 1451max_poll_reqs (unsigned int nreqs)
1281 PROTOTYPE: $ 1452 PROTOTYPE: $
1282 CODE: 1453 CODE:
1283 max_poll_reqs = nreqs; 1454 eio_set_max_poll_reqs (nreqs);
1284 1455
1285void 1456void
1286max_poll_time (double nseconds) 1457max_poll_time (double nseconds)
1287 PROTOTYPE: $ 1458 PROTOTYPE: $
1288 CODE: 1459 CODE:
1289 max_poll_time = nseconds * AIO_TICKS; 1460 eio_set_max_poll_time (nseconds);
1290 1461
1291void 1462void
1292min_parallel (int nthreads) 1463min_parallel (unsigned int nthreads)
1293 PROTOTYPE: $
1294
1295void
1296max_parallel (int nthreads)
1297 PROTOTYPE: $
1298
1299void
1300max_idle (int nthreads)
1301 PROTOTYPE: $ 1464 PROTOTYPE: $
1302 CODE: 1465 CODE:
1303 set_max_idle (nthreads); 1466 eio_set_min_parallel (nthreads);
1304 1467
1305int 1468void
1306max_outstanding (int maxreqs) 1469max_parallel (unsigned int nthreads)
1307 PROTOTYPE: $ 1470 PROTOTYPE: $
1308 CODE: 1471 CODE:
1309 RETVAL = max_outstanding; 1472 eio_set_max_parallel (nthreads);
1473
1474void
1475max_idle (unsigned int nthreads)
1476 PROTOTYPE: $
1477 CODE:
1478 eio_set_max_idle (nthreads);
1479
1480void
1481idle_timeout (unsigned int seconds)
1482 PROTOTYPE: $
1483 CODE:
1484 eio_set_idle_timeout (seconds);
1485
1486void
1487max_outstanding (unsigned int maxreqs)
1488 PROTOTYPE: $
1489 CODE:
1310 max_outstanding = maxreqs; 1490 max_outstanding = maxreqs;
1311 OUTPUT:
1312 RETVAL
1313 1491
1314void 1492void
1315aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1493aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1316 SV8 * pathname
1317 int flags
1318 int mode
1319 SV * callback
1320 PROTOTYPE: $$$;$
1321 PPCODE: 1494 PPCODE:
1322{ 1495{
1323 dREQ; 1496 dREQ;
1324 1497
1498 req->type = EIO_WD_OPEN;
1499 req_set_path1 (req, pathname);
1500
1501 REQ_SEND;
1502}
1503
1504void
1505aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1506 PPCODE:
1507{
1508 dREQ;
1509
1325 req->type = REQ_OPEN; 1510 req->type = EIO_OPEN;
1326 req->sv1 = newSVsv (pathname); 1511 req_set_path1 (req, pathname);
1327 req->ptr1 = SvPVbyte_nolen (req->sv1);
1328 req->int1 = flags; 1512 req->int1 = flags;
1329 req->mode = mode; 1513 req->int2 = mode;
1330 1514
1331 REQ_SEND; 1515 REQ_SEND;
1332} 1516}
1333 1517
1334void 1518void
1335aio_close (fh,callback=&PL_sv_undef) 1519aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1336 SV * fh
1337 SV * callback
1338 PROTOTYPE: $;$
1339 ALIAS: 1520 ALIAS:
1340 aio_close = REQ_CLOSE
1341 aio_fsync = REQ_FSYNC 1521 aio_fsync = EIO_FSYNC
1342 aio_fdatasync = REQ_FDATASYNC 1522 aio_fdatasync = EIO_FDATASYNC
1523 aio_syncfs = EIO_SYNCFS
1343 PPCODE: 1524 PPCODE:
1344{ 1525{
1526 int fd = s_fileno_croak (fh, 0);
1345 dREQ; 1527 dREQ;
1346 1528
1347 req->type = ix; 1529 req->type = ix;
1348 req->fh = newSVsv (fh); 1530 req->sv1 = newSVsv (fh);
1349 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1531 req->int1 = fd;
1350 1532
1351 REQ_SEND (req); 1533 REQ_SEND;
1352} 1534}
1353 1535
1354void 1536void
1537aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1538 PPCODE:
1539{
1540 int fd = s_fileno_croak (fh, 0);
1541 dREQ;
1542
1543 req->type = EIO_SYNC_FILE_RANGE;
1544 req->sv1 = newSVsv (fh);
1545 req->int1 = fd;
1546 req->offs = offset;
1547 req->size = nbytes;
1548 req->int2 = flags;
1549
1550 REQ_SEND;
1551}
1552
1553void
1554aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1555 PPCODE:
1556{
1557 int fd = s_fileno_croak (fh, 0);
1558 dREQ;
1559
1560 req->type = EIO_FALLOCATE;
1561 req->sv1 = newSVsv (fh);
1562 req->int1 = fd;
1563 req->int2 = mode;
1564 req->offs = offset;
1565 req->size = len;
1566
1567 REQ_SEND;
1568}
1569
1570void
1571aio_close (SV *fh, SV *callback = &PL_sv_undef)
1572 PPCODE:
1573{
1574 int fd = s_fileno_croak (fh, 0);
1575 dREQ;
1576#if 0
1577 /* partially duplicate logic in s_fileno */
1578 SvGETMAGIC (fh);
1579
1580 if (SvROK (fh))
1581 {
1582 fh = SvRV (fh);
1583 SvGETMAGIC (fh);
1584 }
1585
1586 if (SvTYPE (fh) == SVt_PVGV)
1587 {
1588 /* perl filehandle */
1589 PerlIOUnix_refcnt_inc (fd);
1590 do_close ((GV *)fh, 1);
1591
1592 req->type = EIO_CLOSE;
1593 req->int1 = fd;
1594 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1595 }
1596 else
1597#endif
1598 {
1599 /* fd number */
1600 req->type = EIO_DUP2;
1601 req->int1 = close_fd;
1602 req->sv2 = newSVsv (fh);
1603 req->int2 = fd;
1604 }
1605
1606 REQ_SEND;
1607}
1608
1609void
1610aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1611 PPCODE:
1612{
1613 int fd = s_fileno_croak (fh, 0);
1614 dREQ;
1615
1616 req->type = EIO_SEEK;
1617 req->sv1 = newSVsv (fh);
1618 req->int1 = fd;
1619 req->offs = SvVAL64 (offset);
1620 req->int2 = whence;
1621
1622 REQ_SEND;
1623}
1624
1625void
1355aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1626aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1356 SV * fh
1357 UV offset
1358 UV length
1359 SV8 * data
1360 UV dataoffset
1361 SV * callback
1362 ALIAS: 1627 ALIAS:
1363 aio_read = REQ_READ 1628 aio_read = EIO_READ
1364 aio_write = REQ_WRITE 1629 aio_write = EIO_WRITE
1365 PROTOTYPE: $$$$$;$
1366 PPCODE: 1630 PPCODE:
1367{ 1631{
1368 STRLEN svlen; 1632 STRLEN svlen;
1633 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1369 char *svptr = SvPVbyte (data, svlen); 1634 char *svptr = SvPVbyte (data, svlen);
1370 1635 UV len = SvUV (length);
1371 SvUPGRADE (data, SVt_PV);
1372 SvPOK_on (data);
1373 1636
1374 if (dataoffset < 0) 1637 if (dataoffset < 0)
1375 dataoffset += svlen; 1638 dataoffset += svlen;
1376 1639
1377 if (dataoffset < 0 || dataoffset > svlen) 1640 if (dataoffset < 0 || dataoffset > svlen)
1378 croak ("data offset outside of string"); 1641 croak ("dataoffset outside of data scalar");
1379 1642
1380 if (ix == REQ_WRITE) 1643 if (ix == EIO_WRITE)
1381 { 1644 {
1382 /* write: check length and adjust. */ 1645 /* write: check length and adjust. */
1383 if (length < 0 || length + dataoffset > svlen) 1646 if (!SvOK (length) || len + dataoffset > svlen)
1384 length = svlen - dataoffset; 1647 len = svlen - dataoffset;
1385 } 1648 }
1386 else 1649 else
1387 { 1650 {
1388 /* read: grow scalar as necessary */ 1651 /* read: check type and grow scalar as necessary */
1652 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1389 svptr = SvGROW (data, length + dataoffset); 1653 svptr = sv_grow (data, len + dataoffset + 1);
1654 else if (SvCUR (data) < len + dataoffset)
1655 croak ("length + dataoffset outside of scalar, and cannot grow");
1390 } 1656 }
1391
1392 if (length < 0)
1393 croak ("length must not be negative");
1394 1657
1395 { 1658 {
1396 dREQ; 1659 dREQ;
1397 1660
1398 req->type = ix; 1661 req->type = ix;
1399 req->fh = newSVsv (fh); 1662 req->sv1 = newSVsv (fh);
1400 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1663 req->int1 = fd;
1401 : IoOFP (sv_2io (fh))); 1664 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1402 req->offs = offset;
1403 req->size = length; 1665 req->size = len;
1404 req->sv1 = SvREFCNT_inc (data); 1666 req->sv2 = SvREFCNT_inc (data);
1405 req->ptr1 = (char *)svptr + dataoffset; 1667 req->ptr2 = (char *)svptr + dataoffset;
1406 req->stroffset = dataoffset; 1668 req->stroffset = dataoffset;
1407 1669
1408 if (!SvREADONLY (data)) 1670 if (!SvREADONLY (data))
1409 { 1671 {
1410 SvREADONLY_on (data); 1672 SvREADONLY_on (data);
1411 req->flags |= FLAG_SV1_RO_OFF; 1673 req->flags |= FLAG_SV2_RO_OFF;
1412 } 1674 }
1413 1675
1414 REQ_SEND; 1676 REQ_SEND;
1415 } 1677 }
1416} 1678}
1417 1679
1418void 1680void
1419aio_readlink (path,callback=&PL_sv_undef) 1681aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1420 SV8 * path 1682 ALIAS:
1421 SV * callback 1683 aio_ioctl = EIO_IOCTL
1422 PROTOTYPE: $$;$ 1684 aio_fcntl = EIO_FCNTL
1423 PPCODE: 1685 PPCODE:
1424{ 1686{
1425 SV *data; 1687 int fd = s_fileno_croak (fh, 0);
1688 char *svptr;
1689
1690 if (SvPOK (arg) || !SvNIOK (arg))
1691 {
1692 STRLEN svlen;
1693 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1694#ifdef IOCPARM_LEN
1695 STRLEN need = IOCPARM_LEN (request);
1696#else
1697 STRLEN need = 256;
1698#endif
1699
1700 if (svlen < need)
1701 svptr = SvGROW (arg, need);
1702 }
1703 else
1704 svptr = (char *)SvIV (arg);
1705
1706 {
1707 dREQ;
1708
1709 req->type = ix;
1710 req->sv1 = newSVsv (fh);
1711 req->int1 = fd;
1712 req->int2 = (long)request;
1713 req->sv2 = SvREFCNT_inc (arg);
1714 req->ptr2 = svptr;
1715
1716 REQ_SEND;
1717 }
1718}
1719
1720void
1721aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1722 ALIAS:
1723 aio_readlink = EIO_READLINK
1724 aio_realpath = EIO_REALPATH
1725 PPCODE:
1726{
1426 dREQ; 1727 dREQ;
1427 1728
1428 data = newSV (NAME_MAX);
1429 SvPOK_on (data);
1430
1431 req->type = REQ_READLINK; 1729 req->type = ix;
1432 req->fh = newSVsv (path); 1730 req_set_path1 (req, pathname);
1433 req->ptr2 = SvPVbyte_nolen (req->fh);
1434 req->sv1 = data;
1435 req->ptr1 = SvPVbyte_nolen (data);
1436 1731
1437 REQ_SEND; 1732 REQ_SEND;
1438} 1733}
1439 1734
1440void 1735void
1441aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1736aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1442 SV * out_fh
1443 SV * in_fh
1444 UV in_offset
1445 UV length
1446 SV * callback
1447 PROTOTYPE: $$$$;$
1448 PPCODE: 1737 PPCODE:
1449{ 1738{
1739 int ifd = s_fileno_croak (in_fh , 0);
1740 int ofd = s_fileno_croak (out_fh, 1);
1450 dREQ; 1741 dREQ;
1451 1742
1452 req->type = REQ_SENDFILE; 1743 req->type = EIO_SENDFILE;
1453 req->fh = newSVsv (out_fh); 1744 req->sv1 = newSVsv (out_fh);
1454 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1745 req->int1 = ofd;
1455 req->sv2 = newSVsv (in_fh); 1746 req->sv2 = newSVsv (in_fh);
1456 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1747 req->int2 = ifd;
1457 req->offs = in_offset; 1748 req->offs = in_offset;
1458 req->size = length; 1749 req->size = length;
1459 1750
1460 REQ_SEND; 1751 REQ_SEND;
1461} 1752}
1462 1753
1463void 1754void
1464aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1755aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1465 SV * fh
1466 UV offset
1467 IV length
1468 SV * callback
1469 PROTOTYPE: $$$;$
1470 PPCODE: 1756 PPCODE:
1471{ 1757{
1758 int fd = s_fileno_croak (fh, 0);
1472 dREQ; 1759 dREQ;
1473 1760
1474 req->type = REQ_READAHEAD; 1761 req->type = EIO_READAHEAD;
1475 req->fh = newSVsv (fh); 1762 req->sv1 = newSVsv (fh);
1476 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1763 req->int1 = fd;
1477 req->offs = offset; 1764 req->offs = offset;
1478 req->size = length; 1765 req->size = length;
1479 1766
1480 REQ_SEND; 1767 REQ_SEND;
1481} 1768}
1482 1769
1483void 1770void
1484aio_stat (fh_or_path,callback=&PL_sv_undef) 1771aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1485 SV8 * fh_or_path
1486 SV * callback
1487 ALIAS: 1772 ALIAS:
1488 aio_stat = REQ_STAT 1773 aio_stat = EIO_STAT
1489 aio_lstat = REQ_LSTAT 1774 aio_lstat = EIO_LSTAT
1775 aio_statvfs = EIO_STATVFS
1490 PPCODE: 1776 PPCODE:
1491{ 1777{
1492 dREQ; 1778 dREQ;
1493 1779
1494 req->ptr2 = malloc (sizeof (Stat_t)); 1780 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1495 if (!req->ptr2)
1496 {
1497 req_free (req);
1498 croak ("out of memory during aio_stat statdata allocation");
1499 }
1500
1501 req->flags |= FLAG_PTR2_FREE;
1502
1503 if (SvPOK (fh_or_path))
1504 {
1505 req->type = ix;
1506 req->sv1 = newSVsv (fh_or_path);
1507 req->ptr1 = SvPVbyte_nolen (req->sv1);
1508 }
1509 else
1510 {
1511 req->type = REQ_FSTAT;
1512 req->fh = newSVsv (fh_or_path);
1513 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1514 }
1515 1781
1516 REQ_SEND; 1782 REQ_SEND;
1517} 1783}
1518 1784
1519void 1785void
1786st_xtime ()
1787 ALIAS:
1788 st_atime = 0x01
1789 st_mtime = 0x02
1790 st_ctime = 0x04
1791 st_btime = 0x08
1792 st_xtime = 0x0f
1793 PPCODE:
1794 EXTEND (SP, 4);
1795 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1796 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1797 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1798 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1799
1800void
1801st_xtimensec ()
1802 ALIAS:
1803 st_atimensec = 0x01
1804 st_mtimensec = 0x02
1805 st_ctimensec = 0x04
1806 st_btimensec = 0x08
1807 st_xtimensec = 0x0f
1808 st_btimesec = 0x10
1809 st_gen = 0x20
1810 PPCODE:
1811 EXTEND (SP, 4);
1812 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1813 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1814 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1815 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1816 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1817 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1818
1819UV
1820major (UV dev)
1821 ALIAS:
1822 minor = 1
1823 CODE:
1824 RETVAL = ix ? minor (dev) : major (dev);
1825 OUTPUT:
1826 RETVAL
1827
1828UV
1829makedev (UV maj, UV min)
1830 CODE:
1831 RETVAL = makedev (maj, min);
1832 OUTPUT:
1833 RETVAL
1834
1835void
1836aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1837 PPCODE:
1838{
1839 dREQ;
1840
1841 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1842 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1843 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1844
1845 REQ_SEND;
1846}
1847
1848void
1849aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1850 PPCODE:
1851{
1852 dREQ;
1853
1854 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1855 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1856
1857 REQ_SEND;
1858}
1859
1860void
1861aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1862 PPCODE:
1863{
1864 dREQ;
1865
1866 req->int2 = mode;
1867 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1868
1869 REQ_SEND;
1870}
1871
1872void
1873aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1874 PPCODE:
1875{
1876 dREQ;
1877
1878 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1879 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1880 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1881
1882 REQ_SEND;
1883}
1884
1885void
1886aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1887 PPCODE:
1888{
1889 dREQ;
1890
1891 req->type = EIO_READDIR;
1892 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1893
1894 if (flags & EIO_READDIR_DENTS)
1895 req->int1 |= EIO_READDIR_CUSTOM2;
1896
1897 req_set_path1 (req, pathname);
1898
1899 REQ_SEND;
1900}
1901
1902void
1903aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1904 PPCODE:
1905{
1906 dREQ;
1907
1908 req->type = EIO_MKDIR;
1909 req->int2 = mode;
1910 req_set_path1 (req, pathname);
1911
1912 REQ_SEND;
1913}
1914
1915void
1520aio_unlink (pathname,callback=&PL_sv_undef) 1916aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1521 SV8 * pathname
1522 SV * callback
1523 ALIAS: 1917 ALIAS:
1524 aio_unlink = REQ_UNLINK 1918 aio_unlink = EIO_UNLINK
1525 aio_rmdir = REQ_RMDIR 1919 aio_rmdir = EIO_RMDIR
1526 aio_readdir = REQ_READDIR 1920 aio_readdir = EIO_READDIR
1527 PPCODE: 1921 PPCODE:
1528{ 1922{
1529 dREQ; 1923 dREQ;
1530 1924
1531 req->type = ix; 1925 req->type = ix;
1532 req->sv1 = newSVsv (pathname); 1926 req_set_path1 (req, pathname);
1533 req->ptr1 = SvPVbyte_nolen (req->sv1);
1534 1927
1535 REQ_SEND; 1928 REQ_SEND;
1536} 1929}
1537 1930
1538void 1931void
1539aio_link (oldpath,newpath,callback=&PL_sv_undef) 1932aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1540 SV8 * oldpath
1541 SV8 * newpath
1542 SV * callback
1543 ALIAS: 1933 ALIAS:
1544 aio_link = REQ_LINK 1934 aio_link = EIO_LINK
1545 aio_symlink = REQ_SYMLINK 1935 aio_symlink = EIO_SYMLINK
1546 aio_rename = REQ_RENAME 1936 aio_rename = EIO_RENAME
1547 PPCODE: 1937 PPCODE:
1548{ 1938{
1939 eio_wd wd2 = 0;
1549 dREQ; 1940 dREQ;
1550 1941
1551 req->type = ix; 1942 req->type = ix;
1552 req->fh = newSVsv (oldpath); 1943 req_set_path1 (req, oldpath);
1553 req->ptr2 = SvPVbyte_nolen (req->fh); 1944 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1554 req->sv1 = newSVsv (newpath); 1945 req->int3 = (long)wd2;
1555 req->ptr1 = SvPVbyte_nolen (req->sv1);
1556 1946
1557 REQ_SEND; 1947 REQ_SEND;
1558} 1948}
1559 1949
1560void 1950void
1561aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1951aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1562 SV8 * pathname
1563 SV * callback
1564 UV mode
1565 UV dev
1566 PPCODE: 1952 PPCODE:
1567{ 1953{
1954 eio_wd wd2 = 0;
1568 dREQ; 1955 dREQ;
1569 1956
1570 req->type = REQ_MKNOD; 1957 req->type = EIO_RENAME;
1571 req->sv1 = newSVsv (pathname); 1958 req_set_path1 (req, oldpath);
1572 req->ptr1 = SvPVbyte_nolen (req->sv1); 1959 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1573 req->mode = (mode_t)mode; 1960 req->int2 = flags;
1574 req->offs = dev; 1961 req->int3 = (long)wd2;
1575 1962
1576 REQ_SEND; 1963 REQ_SEND;
1577} 1964}
1578 1965
1579void 1966void
1580aio_busy (delay,callback=&PL_sv_undef) 1967aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1581 double delay
1582 SV * callback
1583 PPCODE: 1968 PPCODE:
1584{ 1969{
1585 dREQ; 1970 dREQ;
1586 1971
1587 req->type = REQ_BUSY; 1972 req->type = EIO_MKNOD;
1588 req->int1 = delay < 0. ? 0 : delay; 1973 req->int2 = (mode_t)mode;
1589 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1); 1974 req->offs = dev;
1590 1975 req_set_path1 (req, pathname);
1976
1591 REQ_SEND; 1977 REQ_SEND;
1592} 1978}
1593 1979
1594void 1980void
1595aio_group (callback=&PL_sv_undef) 1981aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1596 SV * callback 1982 ALIAS:
1597 PROTOTYPE: ;$ 1983 aio_mtouch = EIO_MTOUCH
1984 aio_msync = EIO_MSYNC
1598 PPCODE: 1985 PPCODE:
1599{ 1986{
1987 STRLEN svlen;
1988 char *svptr = SvPVbyte (data, svlen);
1989 UV len = SvUV (length);
1990
1991 if (flags < 0)
1992 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1993
1994 if (offset < 0)
1995 offset += svlen;
1996
1997 if (offset < 0 || offset > svlen)
1998 croak ("offset outside of scalar");
1999
2000 if (!SvOK (length) || len + offset > svlen)
2001 len = svlen - offset;
2002
2003 {
2004 dREQ;
2005
2006 req->type = ix;
2007 req->sv2 = SvREFCNT_inc (data);
2008 req->ptr2 = (char *)svptr + offset;
2009 req->size = len;
2010 req->int1 = flags;
2011
2012 REQ_SEND;
2013 }
2014}
2015
2016void
2017aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2018 PPCODE:
2019{
2020 STRLEN svlen;
2021 char *svptr = SvPVbyte (data, svlen);
2022 UV len = SvUV (length);
2023
2024 if (offset < 0)
2025 offset += svlen;
2026
2027 if (offset < 0 || offset > svlen)
2028 croak ("offset outside of scalar");
2029
2030 if (!SvOK (length) || len + offset > svlen)
2031 len = svlen - offset;
2032
2033 {
2034 dREQ;
2035
2036 req->type = EIO_MLOCK;
2037 req->sv2 = SvREFCNT_inc (data);
2038 req->ptr2 = (char *)svptr + offset;
2039 req->size = len;
2040
2041 REQ_SEND;
2042 }
2043}
2044
2045void
2046aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2047 PPCODE:
2048{
2049 dREQ;
2050
2051 req->type = EIO_MLOCKALL;
2052 req->int1 = flags;
2053
2054 REQ_SEND;
2055}
2056
2057void
2058aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2059 PPCODE:
2060{
2061 int fd = s_fileno_croak (fh, 0);
1600 dREQ; 2062 dREQ;
1601 2063
1602 req->type = REQ_GROUP; 2064 req->type = EIO_CUSTOM;
2065 req->sv1 = newSVsv (fh);
2066 req->int1 = fd;
1603 2067
1604 req_send (req); 2068 req->feed = fiemap;
1605 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2069#if HAVE_FIEMAP
1606} 2070 /* keep our fingers crossed that the next two types are 64 bit */
2071 req->offs = start;
2072 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2073 req->int2 = flags;
2074 req->int3 = SvOK (count) ? SvIV (count) : -1;
2075#endif
1607 2076
2077 REQ_SEND;
2078}
2079
1608void 2080void
1609aio_nop (callback=&PL_sv_undef) 2081aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1610 SV * callback 2082 PPCODE:
2083{
2084 char *svptr = 0;
2085
2086 sv_clear_foreign (data);
2087
2088 if (length) /* known length, directly read into scalar */
2089 {
2090 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2091 svptr = sv_grow (data, length + 1);
2092 else if (SvCUR (data) < length)
2093 croak ("length outside of scalar, and cannot grow");
2094 else
2095 svptr = SvPVbyte_nolen (data);
2096 }
2097
2098 {
2099 dREQ;
2100
2101 req->type = EIO_SLURP;
2102 req_set_path1 (req, pathname);
2103 req->offs = offset;
2104 req->size = length;
2105 req->sv2 = SvREFCNT_inc (data);
2106 req->ptr2 = svptr;
2107
2108 if (!SvREADONLY (data))
2109 {
2110 SvREADONLY_on (data);
2111 req->flags |= FLAG_SV2_RO_OFF;
2112 }
2113
2114 REQ_SEND;
2115 }
2116}
2117
2118void
2119aio_busy (double delay, SV *callback = &PL_sv_undef)
1611 PPCODE: 2120 PPCODE:
1612{ 2121{
1613 dREQ; 2122 dREQ;
1614 2123
1615 req->type = REQ_NOP; 2124 req->type = EIO_BUSY;
2125 req->nv1 = delay < 0. ? 0. : delay;
1616 2126
1617 REQ_SEND; 2127 REQ_SEND;
1618} 2128}
1619 2129
2130void
2131aio_group (SV *callback = &PL_sv_undef)
2132 PPCODE:
2133{
2134 dREQ;
2135
2136 req->type = EIO_GROUP;
2137
2138 PUTBACK;
2139 req_submit (req);
2140 SPAGAIN;
2141
2142 XPUSHs (req_sv (req, aio_grp_stash));
2143}
2144
2145void
2146aio_nop (SV *callback = &PL_sv_undef)
2147 ALIAS:
2148 aio_nop = EIO_NOP
2149 aio_sync = EIO_SYNC
2150 PPCODE:
2151{
2152 dREQ;
2153
2154 req->type = ix;
2155
2156 REQ_SEND;
2157}
2158
1620int 2159int
1621aioreq_pri (int pri = 0) 2160aioreq_pri (int pri = NO_INIT)
1622 PROTOTYPE: ;$
1623 CODE: 2161 CODE:
1624 RETVAL = next_pri - PRI_BIAS; 2162 RETVAL = next_pri;
1625 if (items > 0) 2163 if (items > 0)
1626 { 2164 {
1627 if (pri < PRI_MIN) pri = PRI_MIN; 2165 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1628 if (pri > PRI_MAX) pri = PRI_MAX; 2166 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1629 next_pri = pri + PRI_BIAS; 2167 next_pri = pri;
1630 } 2168 }
1631 OUTPUT: 2169 OUTPUT:
1632 RETVAL 2170 RETVAL
1633 2171
1634void 2172void
1635aioreq_nice (int nice = 0) 2173aioreq_nice (int nice = 0)
1636 CODE: 2174 CODE:
1637 nice = next_pri - nice; 2175 nice = next_pri - nice;
1638 if (nice < PRI_MIN) nice = PRI_MIN; 2176 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1639 if (nice > PRI_MAX) nice = PRI_MAX; 2177 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1640 next_pri = nice + PRI_BIAS; 2178 next_pri = nice;
1641 2179
1642void 2180void
1643flush () 2181flush ()
1644 PROTOTYPE:
1645 CODE: 2182 CODE:
1646 while (nreqs) 2183 while (eio_nreqs ())
1647 { 2184 {
1648 poll_wait (); 2185 poll_wait ();
1649 poll_cb (); 2186 poll_cb ();
1650 } 2187 }
1651 2188
1652int 2189int
1653poll() 2190poll ()
1654 PROTOTYPE:
1655 CODE: 2191 CODE:
1656 if (nreqs)
1657 {
1658 poll_wait (); 2192 poll_wait ();
1659 RETVAL = poll_cb (); 2193 RETVAL = poll_cb ();
1660 }
1661 else
1662 RETVAL = 0;
1663 OUTPUT: 2194 OUTPUT:
1664 RETVAL 2195 RETVAL
1665 2196
1666int 2197int
1667poll_fileno() 2198poll_fileno ()
1668 PROTOTYPE:
1669 CODE: 2199 CODE:
1670 RETVAL = respipe [0]; 2200 RETVAL = s_epipe_fd (&respipe);
1671 OUTPUT: 2201 OUTPUT:
1672 RETVAL 2202 RETVAL
1673 2203
1674int 2204int
1675poll_cb(...) 2205poll_cb (...)
1676 PROTOTYPE: 2206 PROTOTYPE:
1677 CODE: 2207 CODE:
1678 RETVAL = poll_cb (); 2208 RETVAL = poll_cb ();
1679 OUTPUT: 2209 OUTPUT:
1680 RETVAL 2210 RETVAL
1681 2211
1682void 2212void
1683poll_wait() 2213poll_wait ()
2214 CODE:
2215 poll_wait ();
2216
2217int
2218nreqs ()
2219 CODE:
2220 RETVAL = eio_nreqs ();
2221 OUTPUT:
2222 RETVAL
2223
2224int
2225nready ()
2226 CODE:
2227 RETVAL = eio_nready ();
2228 OUTPUT:
2229 RETVAL
2230
2231int
2232npending ()
2233 CODE:
2234 RETVAL = eio_npending ();
2235 OUTPUT:
2236 RETVAL
2237
2238int
2239nthreads ()
2240 CODE:
2241 RETVAL = eio_nthreads ();
2242 OUTPUT:
2243 RETVAL
2244
2245int
2246fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2247 CODE:
2248 RETVAL = posix_fadvise (fh, offset, length, advice);
2249 OUTPUT:
2250 RETVAL
2251
2252IV
2253sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2254 CODE:
2255 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2256 OUTPUT:
2257 RETVAL
2258
2259void
2260mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2261 PPCODE:
2262 sv_clear_foreign (scalar);
2263{
2264 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2265 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2266 if (addr == (void *)-1)
2267 XSRETURN_NO;
2268
2269 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2270
2271 if (!(prot & PROT_WRITE))
2272 SvREADONLY_on (scalar);
2273
2274 XSRETURN_YES;
2275}
2276
2277void
2278munmap (SV *scalar)
2279 CODE:
2280 sv_clear_foreign (scalar);
2281
2282SV *
2283mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2284 CODE:
2285{
2286 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2287 void *new;
2288
2289 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2290 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2291
2292 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2293
2294 RETVAL = &PL_sv_no;
2295
2296 if (new != (void *)-1)
2297 {
2298 RETVAL = new == (void *)mg->mg_ptr
2299 ? newSVpvn ("0 but true", 10)
2300 : &PL_sv_yes;
2301
2302 mg->mg_ptr = (char *)new;
2303 mg->mg_obj = (SV *)new_length;
2304
2305 SvPVX (scalar) = mg->mg_ptr;
2306 SvCUR_set (scalar, new_length);
2307 }
2308}
2309 OUTPUT:
2310 RETVAL
2311
2312int
2313madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2314 ALIAS:
2315 mprotect = 1
2316 CODE:
2317{
2318 STRLEN svlen;
2319 void *addr = SvPVbyte (scalar, svlen);
2320 STRLEN len = SvUV (length);
2321
2322 if (offset < 0)
2323 offset += svlen;
2324
2325 if (offset < 0 || offset > svlen)
2326 croak ("offset outside of scalar");
2327
2328 if (!SvOK (length) || len + offset > svlen)
2329 len = svlen - offset;
2330
2331 addr = (void *)(((intptr_t)addr) + offset);
2332 eio_page_align (&addr, &len);
2333
2334 switch (ix)
2335 {
2336 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2337 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2338 }
2339}
2340 OUTPUT:
2341 RETVAL
2342
2343int
2344munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2345 CODE:
2346{
2347 STRLEN svlen;
2348 void *addr = SvPVbyte (scalar, svlen);
2349 size_t len = SvUV (length);
2350
2351 if (offset < 0)
2352 offset += svlen;
2353
2354 if (offset < 0 || offset > svlen)
2355 croak ("offset outside of scalar");
2356
2357 if (!SvOK (length) || len + offset > svlen)
2358 len = svlen - offset;
2359
2360 addr = (void *)(((intptr_t)addr) + offset);
2361 eio_page_align (&addr, &len);
2362#if _POSIX_MEMLOCK_RANGE
2363 RETVAL = munlock (addr, len);
2364#else
2365 RETVAL = EIO_ENOSYS ();
2366#endif
2367}
2368 OUTPUT:
2369 RETVAL
2370
2371int
2372mlockall (int flags)
2373 PROTOTYPE: $;
2374 CODE:
2375 RETVAL = eio_mlockall_sync (flags);
2376 OUTPUT:
2377 RETVAL
2378
2379int
2380munlockall ()
2381 CODE:
2382#if _POSIX_MEMLOCK
2383 munlockall ();
2384#else
2385 RETVAL = EIO_ENOSYS ();
2386#endif
2387 OUTPUT:
2388 RETVAL
2389
2390int
2391statx (SV8 *pathname, int flags, UV mask)
2392 CODE:
2393{
2394 /* undocumented, and might go away, and anyway, should use eio_statx */
2395 SV *wdsv = 0;
2396 SV *pathsv = 0;
2397 eio_wd wd = EIO_CWD;
2398 void *ptr;
2399 int res;
2400
2401 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2402 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2403
2404 SvREFCNT_dec (pathsv);
2405 SvREFCNT_dec (wdsv);
2406}
2407 OUTPUT:
2408 RETVAL
2409
2410U32
2411stx_mode ()
1684 PROTOTYPE: 2412 PROTOTYPE:
1685 CODE: 2413 CODE:
2414#if HAVE_STATX
2415 RETVAL = stx.stx_mode;
2416#else
2417 XSRETURN_UNDEF;
2418#endif
2419 OUTPUT:
2420 RETVAL
2421
2422#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2423#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2424#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2425#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2426#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2427#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2428#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2429#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2430#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2431#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2432#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2433#define STATX_OFFSET_size statx_offsetof (stx_size)
2434#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2435#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2436#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2437#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2438#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2439#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2440
2441U32
2442stx_mask ()
2443 PROTOTYPE:
2444 ALIAS:
2445 stx_mask = STATX_OFFSET_mask
2446 stx_blksize = STATX_OFFSET_blksize
2447 stx_nlink = STATX_OFFSET_nlink
2448 stx_uid = STATX_OFFSET_uid
2449 stx_gid = STATX_OFFSET_gid
2450 stx_rdev_major = STATX_OFFSET_rdev_major
2451 stx_rdev_minor = STATX_OFFSET_rdev_minor
2452 stx_dev_major = STATX_OFFSET_dev_major
2453 stx_dev_minor = STATX_OFFSET_dev_minor
2454 CODE:
2455#if HAVE_STATX
2456 RETVAL = *(__u32 *)((char *)&stx + ix);
2457#else
2458 XSRETURN_UNDEF;
2459#endif
2460 OUTPUT:
2461 RETVAL
2462
2463VAL64
2464stx_attributes ()
2465 PROTOTYPE:
2466 ALIAS:
2467 stx_attributes = STATX_OFFSET_attributes
2468 stx_ino = STATX_OFFSET_ino
2469 stx_size = STATX_OFFSET_size
2470 stx_blocks = STATX_OFFSET_blocks
2471 stx_attributes_mask = STATX_OFFSET_attributes_mask
2472 CODE:
2473#if HAVE_STATX
2474 RETVAL = *(__u64 *)((char *)&stx + ix);
2475#else
2476 XSRETURN_UNDEF;
2477#endif
2478 OUTPUT:
2479 RETVAL
2480
2481NV
2482stx_atime ()
2483 PROTOTYPE:
2484 ALIAS:
2485 stx_atime = STATX_OFFSET_atime
2486 stx_btime = STATX_OFFSET_btime
2487 stx_ctime = STATX_OFFSET_ctime
2488 stx_mtime = STATX_OFFSET_mtime
2489 CODE:
2490#if HAVE_STATX
2491 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2492 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2493#else
2494 XSRETURN_UNDEF;
2495#endif
2496 OUTPUT:
2497 RETVAL
2498
2499VAL64
2500stx_atimesec ()
2501 PROTOTYPE:
2502 ALIAS:
2503 stx_atimesec = STATX_OFFSET_atime
2504 stx_btimesec = STATX_OFFSET_btime
2505 stx_ctimesec = STATX_OFFSET_ctime
2506 stx_mtimesec = STATX_OFFSET_mtime
2507 CODE:
2508#if HAVE_STATX
2509 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2510 RETVAL = ts->tv_sec;
2511#else
2512 XSRETURN_UNDEF;
2513#endif
2514 OUTPUT:
2515 RETVAL
2516
2517U32
2518stx_atimensec ()
2519 PROTOTYPE:
2520 ALIAS:
2521 stx_atimensec = STATX_OFFSET_atime
2522 stx_btimensec = STATX_OFFSET_btime
2523 stx_ctimensec = STATX_OFFSET_ctime
2524 stx_mtimensec = STATX_OFFSET_mtime
2525 CODE:
2526#if HAVE_STATX
2527 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2528 RETVAL = ts->tv_nsec;
2529#else
2530 RETVAL = 0;
2531#endif
2532 OUTPUT:
2533 RETVAL
2534
2535void
2536accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2537 PPCODE:
2538{
2539 SV *retval;
2540#if HAVE_ACCEPT4
2541 socklen_t salen_ = salen ? salen + 1 : 0;
2542
1686 if (nreqs) 2543 if (salen)
1687 poll_wait (); 2544 {
2545 sv_upgrade (sockaddr, SVt_PV);
2546 sv_grow (sockaddr, salen_);
2547 }
2548
2549 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2550
2551 retval = newmortalFH (res, O_RDWR);
2552
2553 if (res >= 0 && salen > 0)
2554 {
2555 if (salen_ > salen + 1)
2556 salen_ = salen + 1;
2557
2558 SvPOK_only (sockaddr);
2559 SvCUR_set (sockaddr, salen_);
2560 }
2561#else
2562 errno = ENOSYS;
2563 retval = &PL_sv_undef;
2564#endif
2565 XPUSHs (retval);
2566}
2567
2568ssize_t
2569splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2570 CODE:
2571{
2572#if HAVE_LINUX_SPLICE
2573 loff_t off_in_, off_out_;
2574 RETVAL = splice (
2575 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2576 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2577 length, flags
2578 );
2579#else
2580 RETVAL = EIO_ENOSYS ();
2581#endif
2582}
2583 OUTPUT:
2584 RETVAL
2585
2586ssize_t
2587tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2588 CODE:
2589#if HAVE_LINUX_SPLICE
2590 RETVAL = tee (rfh, wfh, length, flags);
2591#else
2592 RETVAL = EIO_ENOSYS ();
2593#endif
2594 OUTPUT:
2595 RETVAL
1688 2596
1689int 2597int
1690nreqs() 2598pipesize (aio_rfd rfh, int new_size = -1)
2599 PROTOTYPE: $;$
2600 CODE:
2601#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2602 if (new_size >= 0)
2603 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2604 else
2605 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2606#else
2607 errno = ENOSYS;
2608 RETVAL = -1;
2609#endif
2610 OUTPUT:
2611 RETVAL
2612
2613void
2614pipe2 (int flags = 0)
1691 PROTOTYPE: 2615 PROTOTYPE: ;$
2616 PPCODE:
2617{
2618 int fd[2];
2619 int res;
2620
2621 if (flags)
2622#if HAVE_PIPE2
2623 res = pipe2 (fd, flags);
2624#else
2625 res = (errno = ENOSYS, -1);
2626#endif
2627 else
2628 res = pipe (fd);
2629
2630 if (!res)
2631 {
2632 EXTEND (SP, 2);
2633 PUSHs (newmortalFH (fd[0], O_RDONLY));
2634 PUSHs (newmortalFH (fd[1], O_WRONLY));
2635 }
2636}
2637
2638void
2639pidfd_open (int pid, unsigned int flags = 0)
2640 PPCODE:
2641{
2642 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2643 int fd = syscall (SYS_pidfd_open, pid, flags);
2644 XPUSHs (newmortalFH (fd, O_RDWR));
2645}
2646
2647int
2648pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
2649 PPCODE:
2650{
2651 int res;
2652 siginfo_t si = { 0 };
2653
2654 if (SvOK (siginfo))
2655 {
2656 HV *hv;
2657 SV **svp;
2658
2659 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2660 croak ("siginfo argument must be a hashref code, pid, uid and value_int or value_ptr members, caught");
2661
2662 hv = (HV *)SvRV (siginfo);
2663
2664 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2665 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2666 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2667 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2668 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2669 }
2670
2671 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2672 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2673
2674 XPUSHs (sv_2mortal (newSViv (res)));
2675}
2676
2677void
2678pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2679 PPCODE:
2680{
2681 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2682 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2683 XPUSHs (newmortalFH (fd, O_RDWR));
2684}
2685
2686void
2687eventfd (unsigned int initval = 0, int flags = 0)
2688 PPCODE:
2689{
2690 int fd;
2691#if HAVE_EVENTFD
2692 fd = eventfd (initval, flags);
2693#else
2694 fd = (errno = ENOSYS, -1);
2695#endif
2696
2697 XPUSHs (newmortalFH (fd, O_RDWR));
2698}
2699
2700void
2701timerfd_create (int clockid, int flags = 0)
2702 PPCODE:
2703{
2704 int fd;
2705#if HAVE_TIMERFD
2706 fd = timerfd_create (clockid, flags);
2707#else
2708 fd = (errno = ENOSYS, -1);
2709#endif
2710
2711 XPUSHs (newmortalFH (fd, O_RDWR));
2712}
2713
2714void
2715timerfd_settime (SV *fh, int flags, NV interval, NV value)
2716 PPCODE:
2717{
2718 int fd = s_fileno_croak (fh, 0);
2719#if HAVE_TIMERFD
2720 int res;
2721 struct itimerspec its, ots;
2722
2723 ts_set (&its.it_interval, interval);
2724 ts_set (&its.it_value , value);
2725 res = timerfd_settime (fd, flags, &its, &ots);
2726
2727 if (!res)
2728 {
2729 EXTEND (SP, 2);
2730 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2731 PUSHs (newSVnv (ts_get (&ots.it_value)));
2732 }
2733#else
2734 errno = ENOSYS;
2735#endif
2736}
2737
2738void
2739timerfd_gettime (SV *fh)
2740 PPCODE:
2741{
2742 int fd = s_fileno_croak (fh, 0);
2743#if HAVE_TIMERFD
2744 int res;
2745 struct itimerspec ots;
2746 res = timerfd_gettime (fd, &ots);
2747
2748 if (!res)
2749 {
2750 EXTEND (SP, 2);
2751 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2752 PUSHs (newSVnv (ts_get (&ots.it_value)));
2753 }
2754#else
2755 errno = ENOSYS;
2756#endif
2757}
2758
2759void
2760memfd_create (SV8 *pathname, int flags = 0)
2761 PPCODE:
2762{
2763 int fd;
2764#if HAVE_MEMFD_CREATE
2765 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2766#else
2767 fd = (errno = ENOSYS, -1);
2768#endif
2769
2770 XPUSHs (newmortalFH (fd, O_RDWR));
2771}
2772
2773UV
2774get_fdlimit ()
1692 CODE: 2775 CODE:
1693 RETVAL = nreqs; 2776#if HAVE_RLIMITS
2777 struct rlimit rl;
2778 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2779 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2780#endif
2781 XSRETURN_UNDEF;
1694 OUTPUT: 2782 OUTPUT:
1695 RETVAL 2783 RETVAL
1696 2784
1697int 2785void
1698nready() 2786min_fdlimit (UV limit = 0x7fffffffU)
1699 PROTOTYPE:
1700 CODE: 2787 CODE:
1701 RETVAL = get_nready (); 2788{
1702 OUTPUT: 2789#if HAVE_RLIMITS
1703 RETVAL 2790 struct rlimit rl;
2791 rlim_t orig_rlim_max;
2792 UV bit;
1704 2793
1705int 2794 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
1706npending() 2795 goto fail;
1707 PROTOTYPE: 2796
2797 if (rl.rlim_cur == RLIM_INFINITY)
2798 XSRETURN_YES;
2799
2800 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2801
2802 if (rl.rlim_cur < limit)
2803 {
2804 rl.rlim_cur = limit;
2805
2806 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2807 rl.rlim_max = rl.rlim_cur;
2808 }
2809
2810 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2811 XSRETURN_YES;
2812
2813 if (errno == EPERM)
2814 {
2815 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2816 /* our limit overflows a system-wide limit */
2817 /* try an adaptive algorithm, but do not lower the hardlimit */
2818 rl.rlim_max = 0;
2819 for (bit = 0x40000000U; bit; bit >>= 1)
2820 {
2821 rl.rlim_max |= bit;
2822 rl.rlim_cur = rl.rlim_max;
2823
2824 /* never decrease the hard limit */
2825 if (rl.rlim_max < orig_rlim_max)
2826 break;
2827
2828 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2829 rl.rlim_max &= ~bit; /* too high, remove bit again */
2830 }
2831
2832 /* now, raise the soft limit to the max permitted */
2833 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2834 {
2835 rl.rlim_cur = rl.rlim_max;
2836 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2837 errno = EPERM;
2838 }
2839 }
2840#endif
2841 fail:
2842 XSRETURN_UNDEF;
2843}
2844
2845void _on_next_submit (SV *cb)
1708 CODE: 2846 CODE:
1709 RETVAL = get_npending (); 2847 SvREFCNT_dec (on_next_submit);
1710 OUTPUT: 2848 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1711 RETVAL
1712 2849
1713int 2850PROTOTYPES: DISABLE
1714nthreads() 2851
1715 PROTOTYPE: 2852MODULE = IO::AIO PACKAGE = IO::AIO::WD
2853
2854BOOT:
2855{
2856 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2857 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2858}
2859
2860void
2861DESTROY (SV *self)
1716 CODE: 2862 CODE:
1717 if (WORDACCESS_UNSAFE) LOCK (wrklock); 2863{
1718 RETVAL = started; 2864 aio_wd wd = SvAIO_WD (self);
1719 if (WORDACCESS_UNSAFE) UNLOCK (wrklock); 2865#if HAVE_AT
1720 OUTPUT: 2866 {
1721 RETVAL 2867 SV *callback = &PL_sv_undef;
1722 2868 dREQ; /* clobbers next_pri :/ */
1723PROTOTYPES: DISABLE 2869 next_pri = req->pri; /* restore next_pri */
2870 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2871 req->type = EIO_WD_CLOSE;
2872 req->wd = wd;
2873 REQ_SEND;
2874 }
2875#else
2876 eio_wd_close_sync (wd);
2877#endif
2878}
1724 2879
1725MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2880MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1726 2881
1727void 2882void
1728cancel (aio_req_ornot req) 2883cancel (aio_req_ornot req)
1729 CODE: 2884 CODE:
1730 req_cancel (req); 2885 eio_cancel (req);
1731 2886
1732void 2887void
1733cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2888cb (aio_req_ornot req, SV *callback = NO_INIT)
1734 CODE: 2889 PPCODE:
2890{
2891 if (GIMME_V != G_VOID)
2892 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2893
2894 if (items > 1)
2895 {
2896 SV *cb_cv = get_cb (callback);
2897
1735 SvREFCNT_dec (req->callback); 2898 SvREFCNT_dec (req->callback);
1736 req->callback = newSVsv (callback); 2899 req->callback = SvREFCNT_inc (cb_cv);
2900 }
2901}
1737 2902
1738MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2903MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1739 2904
1740void 2905void
1741add (aio_req grp, ...) 2906add (aio_req grp, ...)
1742 PPCODE: 2907 PPCODE:
1743{ 2908{
1744 int i; 2909 int i;
1745 aio_req req;
1746 2910
1747 if (grp->int1 == 2) 2911 if (grp->int1 == 2)
1748 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2912 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1749 2913
1750 for (i = 1; i < items; ++i ) 2914 for (i = 1; i < items; ++i )
1751 { 2915 {
2916 aio_req req;
2917
1752 if (GIMME_V != G_VOID) 2918 if (GIMME_V != G_VOID)
1753 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2919 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1754 2920
1755 req = SvAIO_REQ (ST (i)); 2921 req = SvAIO_REQ (ST (i));
1756 2922
1757 if (req) 2923 if (req)
1758 { 2924 eio_grp_add (grp, req);
1759 ++grp->size;
1760 req->grp = grp;
1761
1762 req->grp_prev = 0;
1763 req->grp_next = grp->grp_first;
1764
1765 if (grp->grp_first)
1766 grp->grp_first->grp_prev = req;
1767
1768 grp->grp_first = req;
1769 }
1770 } 2925 }
1771} 2926}
1772 2927
1773void 2928void
1774cancel_subs (aio_req_ornot req) 2929cancel_subs (aio_req_ornot req)
… …
1783 AV *av; 2938 AV *av;
1784 2939
1785 grp->errorno = errno; 2940 grp->errorno = errno;
1786 2941
1787 av = newAV (); 2942 av = newAV ();
2943 av_extend (av, items - 1);
1788 2944
1789 for (i = 1; i < items; ++i ) 2945 for (i = 1; i < items; ++i )
1790 av_push (av, newSVsv (ST (i))); 2946 av_push (av, newSVsv (ST (i)));
1791 2947
1792 SvREFCNT_dec (grp->sv1); 2948 SvREFCNT_dec (grp->sv1);
… …
1799 grp->errorno = errorno; 2955 grp->errorno = errorno;
1800 2956
1801void 2957void
1802limit (aio_req grp, int limit) 2958limit (aio_req grp, int limit)
1803 CODE: 2959 CODE:
1804 grp->int2 = limit; 2960 eio_grp_limit (grp, limit);
1805 aio_grp_feed (grp);
1806 2961
1807void 2962void
1808feed (aio_req grp, SV *callback=&PL_sv_undef) 2963feed (aio_req grp, SV *callback = &PL_sv_undef)
1809 CODE: 2964 CODE:
1810{ 2965{
1811 SvREFCNT_dec (grp->sv2); 2966 SvREFCNT_dec (grp->sv2);
1812 grp->sv2 = newSVsv (callback); 2967 grp->sv2 = newSVsv (callback);
2968 grp->feed = aio_grp_feed;
1813 2969
1814 if (grp->int2 <= 0) 2970 if (grp->int2 <= 0)
1815 grp->int2 = 2; 2971 grp->int2 = 2;
1816 2972
1817 aio_grp_feed (grp); 2973 eio_grp_limit (grp, grp->int2);
1818} 2974}
1819 2975

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