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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.98 by root, Wed May 9 06:45:12 2007 UTC vs.
Revision 1.286 by root, Tue Dec 29 15:25:26 2020 UTC

1#include "xthread.h" 1#include "libeio/xthread.h"
2 2
3#include <errno.h> 3#include <errno.h>
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8#include "perliol.h"
8 9
9#include "autoconf/config.h" 10#if !defined mg_findext
11# define mg_findext(sv,type,vtbl) mg_find (sv, type)
12#endif
10 13
11#include <stddef.h> 14#include <stddef.h>
12#include <stdlib.h> 15#include <stdlib.h>
13#include <errno.h> 16#include <errno.h>
14#include <sys/time.h>
15#include <sys/select.h>
16#include <sys/types.h> 17#include <sys/types.h>
18#include <sys/socket.h>
17#include <sys/stat.h> 19#include <sys/stat.h>
18#include <limits.h> 20#include <limits.h>
19#include <unistd.h>
20#include <fcntl.h> 21#include <fcntl.h>
21#include <signal.h>
22#include <sched.h> 22#include <sched.h>
23 23
24#if HAVE_SENDFILE 24/* the incompetent fool that created musl keeps __linux__, refuses
25# 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>
26# include <sys/sendfile.h> 88 #include <sys/select.h>
27# 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
28# 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
29# include <sys/uio.h> 123# include <sys/uio.h>
30# elif __hpux 124#endif
31# include <sys/socket.h> 125
32# 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
33# 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
34# else 207# else
35# error sendfile support requested but not available 208# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
36# endif 209# endif
37#endif 210#endif
38 211
39/* number of seconds after which idle threads exit */ 212#ifndef makedev
40#define IDLE_TIMEOUT 10 213# define makedev(maj,min) (((maj) << 8) | (min))
41
42/* used for struct dirent, AIX doesn't provide it */
43#ifndef NAME_MAX
44# define NAME_MAX 4096
45#endif 214#endif
215#ifndef major
216# define major(dev) ((dev) >> 8)
217#endif
218#ifndef minor
219# define minor(dev) ((dev) & 0xff)
220#endif
46 221
47/* buffer size for various temporary buffers */ 222/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
48#define AIO_BUFSIZE 65536 223#ifdef __sun
224# undef PAGESIZE
225#endif
49 226
50#define dBUF \ 227#if PAGESIZE <= 0
51 char *aio_buf; \ 228# define PAGESIZE sysconf (_SC_PAGESIZE)
52 LOCK (wrklock); \ 229#endif
53 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 230
54 UNLOCK (wrklock); \ 231#if HAVE_SYSCALL
55 if (!aio_buf) \ 232#include <sys/syscall.h>
233#else
234# define syscall(nr,...) (errno = ENOSYS, -1)
235#endif
236
237/*****************************************************************************/
238
239#if !_POSIX_MAPPED_FILES
240# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
241# define munmap(addr,length) EIO_ENOSYS ()
242#endif
243
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
56 return -1; 272 return 0;
273}
57 274
58typedef SV SV8; /* byte-sv, used for argument-checking */ 275static MGVTBL mmap_vtbl = {
59 276 0, 0, 0, 0, mmap_free
60enum {
61 REQ_QUIT,
62 REQ_OPEN, REQ_CLOSE,
63 REQ_READ, REQ_WRITE, REQ_READAHEAD,
64 REQ_SENDFILE,
65 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
66 REQ_FSYNC, REQ_FDATASYNC,
67 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
68 REQ_MKNOD, REQ_READDIR,
69 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
70 REQ_GROUP, REQ_NOP,
71 REQ_BUSY,
72}; 277};
73 278
74#define AIO_REQ_KLASS "IO::AIO::REQ" 279static int ecb_cold
75#define AIO_GRP_KLASS "IO::AIO::GRP" 280sysfree_free (pTHX_ SV *sv, MAGIC *mg)
76
77typedef struct aio_cb
78{ 281{
79 struct aio_cb *volatile next; 282 free (mg->mg_ptr);
283 mg->mg_obj = 0; /* just in case */
80 284
81 SV *callback, *fh; 285 SvREADONLY_off (sv);
82 SV *sv1, *sv2;
83 void *ptr1, *ptr2;
84 off_t offs;
85 size_t size;
86 ssize_t result;
87 286
88 STRLEN stroffset; 287 if (SvPVX (sv) != mg->mg_ptr)
89 int type; 288 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
90 int int1, int2;
91 int errorno;
92 mode_t mode; /* open */
93 289
94 unsigned char flags; 290 SvCUR_set (sv, 0);
95 unsigned char pri; 291 SvPVX (sv) = 0;
292 SvOK_off (sv);
96 293
97 SV *self; /* the perl counterpart of this request, if any */ 294 return 0;
98 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 295}
99} aio_cb;
100 296
101enum { 297static MGVTBL sysfree_vtbl = {
102 FLAG_CANCELLED = 0x01, /* request was cancelled */ 298 0, 0, 0, 0, sysfree_free
103 FLAG_SV1_RO_OFF = 0x40, /* data was set readonly */
104 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
105}; 299};
106 300
107typedef aio_cb *aio_req; 301/*****************************************************************************/
108typedef aio_cb *aio_req_ornot;
109 302
110enum { 303/* helper: set scalar to foreign ptr with custom free */
111 PRI_MIN = -4, 304ecb_noinline
112 PRI_MAX = 4, 305static void
113 306sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
114 DEFAULT_PRI = 0,
115 PRI_BIAS = -PRI_MIN,
116 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
117};
118
119#define AIO_TICKS ((1000000 + 1023) >> 10)
120
121static unsigned int max_poll_time = 0;
122static unsigned int max_poll_reqs = 0;
123
124/* calculcate time difference in ~1/AIO_TICKS of a second */
125static int tvdiff (struct timeval *tv1, struct timeval *tv2)
126{ 307{
127 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS 308 sv_force_normal (sv);
128 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
129}
130 309
131static thread_t main_tid; 310 /* we store the length in mg_obj, as namlen is I32 :/ */
132static int main_sig; 311 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
133static int block_sig_level; 312 ->mg_obj = (SV *)length;
134 313
135void block_sig () 314 SvUPGRADE (sv, SVt_PV); /* nop... */
136{
137 sigset_t ss;
138 315
139 if (block_sig_level++) 316 if (SvLEN (sv))
317 Safefree (SvPVX (sv));
318
319 SvPVX (sv) = (char *)addr;
320 SvCUR_set (sv, length);
321 SvLEN_set (sv, 0);
322 SvPOK_only (sv);
323}
324
325static void
326sv_clear_foreign (SV *sv)
327{
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)
140 return; 362 return;
141 363
142 if (!main_sig) 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)
143 return; 372 return;
144 373
145 sigemptyset (&ss); 374 if (req->int3 >= 0 /* not autosizing */
146 sigaddset (&ss, main_sig); 375 || !fiemap->fm_mapped_extents /* no more extents */
147 pthread_sigmask (SIG_BLOCK, &ss, 0); 376 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
148} 377 goto done;
149 378
150void unblock_sig () 379 /* else we have to loop -
151{ 380 * it would be tempting (actually I tried that first) to just query the
152 sigset_t ss; 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 */
153 385
154 if (--block_sig_level) 386 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
155 return;
156 387
157 if (!main_sig) 388 for (;;)
158 return;
159
160 sigemptyset (&ss);
161 sigaddset (&ss, main_sig);
162 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
163}
164
165static int next_pri = DEFAULT_PRI + PRI_BIAS;
166
167static unsigned int started, idle, wanted;
168
169/* worker threads management */
170static mutex_t wrklock = MUTEX_INIT;
171
172typedef struct worker {
173 /* locked by wrklock */
174 struct worker *prev, *next;
175
176 thread_t tid;
177
178 /* locked by reslock, reqlock or wrklock */
179 aio_req req; /* currently processed request */
180 void *dbuf;
181 DIR *dirp;
182} worker;
183
184static worker wrk_first = { &wrk_first, &wrk_first, 0 };
185
186static void worker_clear (worker *wrk)
187{
188 if (wrk->dirp)
189 { 389 {
190 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) */
191 wrk->dirp = 0; 391 char scratch[3072];
192 } 392 struct fiemap *incmap = (struct fiemap *)scratch;
193 393
194 if (wrk->dbuf) 394 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
195 { 395 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
196 free (wrk->dbuf); 396 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
197 wrk->dbuf = 0; 397 incmap->fm_flags = fiemap->fm_flags;
198 } 398 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
199}
200 399
201static void worker_free (worker *wrk) 400 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
202{
203 wrk->next->prev = wrk->prev;
204 wrk->prev->next = wrk->next;
205
206 free (wrk);
207}
208
209static volatile unsigned int nreqs, nready, npending;
210static volatile unsigned int max_idle = 4;
211static volatile unsigned int max_outstanding = 0xffffffff;
212static int respipe [2];
213
214static mutex_t reslock = MUTEX_INIT;
215static mutex_t reqlock = MUTEX_INIT;
216static cond_t reqwait = COND_INIT;
217
218#if WORDACCESS_UNSAFE
219
220static unsigned int get_nready ()
221{
222 unsigned int retval;
223
224 LOCK (reqlock);
225 retval = nready;
226 UNLOCK (reqlock);
227
228 return retval;
229}
230
231static unsigned int get_npending ()
232{
233 unsigned int retval;
234
235 LOCK (reslock);
236 retval = npending;
237 UNLOCK (reslock);
238
239 return retval;
240}
241
242static unsigned int get_nthreads ()
243{
244 unsigned int retval;
245
246 LOCK (wrklock);
247 retval = started;
248 UNLOCK (wrklock);
249
250 return retval;
251}
252
253#else
254
255# define get_nready() nready
256# define get_npending() npending
257# define get_nthreads() started
258
259#endif
260
261/*
262 * a somewhat faster data structure might be nice, but
263 * with 8 priorities this actually needs <20 insns
264 * per shift, the most expensive operation.
265 */
266typedef struct {
267 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
268 int size;
269} reqq;
270
271static reqq req_queue;
272static reqq res_queue;
273
274int reqq_push (reqq *q, aio_req req)
275{
276 int pri = req->pri;
277 req->next = 0;
278
279 if (q->qe[pri])
280 {
281 q->qe[pri]->next = req;
282 q->qe[pri] = req;
283 }
284 else
285 q->qe[pri] = q->qs[pri] = req;
286
287 return q->size++;
288}
289
290aio_req reqq_shift (reqq *q)
291{
292 int pri;
293
294 if (!q->size)
295 return 0; 401 return;
296 402
297 --q->size; 403 if (!incmap->fm_mapped_extents)
404 goto done;
298 405
299 for (pri = NUM_PRI; pri--; ) 406 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
300 { 407 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
301 aio_req req = q->qs[pri]; 408 errno = ENOMEM;
302
303 if (req) 409 if (!fiemap)
410 return;
411
412 req->ptr1 = fiemap;
413
414 for (count = 0; count < incmap->fm_mapped_extents; ++count)
304 { 415 {
305 if (!(q->qs[pri] = req->next)) 416 struct fiemap_extent *e = incmap->fm_extents + count;
306 q->qe[pri] = 0;
307 417
308 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
309 } 426 }
310 } 427 }
311 428
312 abort (); 429done:
313} 430 req->result = 0;
314 431
315static int poll_cb (); 432#else
316static int 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
317static void req_free (aio_req req); 464static void req_destroy (aio_req req);
318static void req_cancel (aio_req req); 465static void req_cancel (aio_req req);
319 466
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
320/* must be called at most once */ 481/* must be called at most once */
321static SV *req_sv (aio_req req, const char *klass) 482ecb_noinline
483static SV *
484req_sv (aio_req req, HV *stash)
322{ 485{
323 if (!req->self) 486 if (!req->self)
324 { 487 {
325 req->self = (SV *)newHV (); 488 req->self = (SV *)newHV ();
326 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 489 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
327 } 490 }
328 491
329 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 492 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
330} 493}
331 494
332static 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)
333{ 504{
334 MAGIC *mg; 505 MAGIC *mg;
335 506
336 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")))
337 croak ("object of class " AIO_REQ_KLASS " expected"); 512 croak ("object of class IO::AIO::REQ expected");
338 513
339 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 514 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
340 515
341 return mg ? (aio_req)mg->mg_ptr : 0; 516 return mg ? (aio_req)mg->mg_ptr : 0;
342} 517}
343 518
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
344static void aio_grp_feed (aio_req grp) 556aio_grp_feed (aio_req grp)
345{ 557{
346 block_sig (); 558 if (grp->sv2 && SvOK (grp->sv2))
347
348 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
349 { 559 {
350 int old_len = grp->size;
351
352 if (grp->sv2 && SvOK (grp->sv2))
353 {
354 dSP; 560 dSP;
355 561
356 ENTER; 562 ENTER;
357 SAVETMPS; 563 SAVETMPS;
358 PUSHMARK (SP); 564 PUSHMARK (SP);
359 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 565 XPUSHs (req_sv (grp, aio_grp_stash));
360 PUTBACK; 566 PUTBACK;
361 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 567 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
362 SPAGAIN; 568 SPAGAIN;
363 FREETMPS; 569 FREETMPS;
364 LEAVE; 570 LEAVE;
365 }
366
367 /* stop if no progress has been made */
368 if (old_len == grp->size)
369 {
370 SvREFCNT_dec (grp->sv2);
371 grp->sv2 = 0;
372 break;
373 }
374 } 571 }
375
376 unblock_sig ();
377} 572}
378 573
379static void aio_grp_dec (aio_req grp) 574ecb_noinline
575static void
576req_submit (eio_req *req)
380{ 577{
381 --grp->size; 578 eio_submit (req);
382 579
383 /* call feeder, if applicable */ 580 if (expect_false (on_next_submit))
384 aio_grp_feed (grp);
385
386 /* finish, if done */
387 if (!grp->size && grp->int1)
388 { 581 {
389 block_sig (); 582 dSP;
583 SV *cb = sv_2mortal (on_next_submit);
390 584
391 if (!req_invoke (grp)) 585 on_next_submit = 0;
392 {
393 req_free (grp);
394 unblock_sig ();
395 croak (0);
396 }
397 586
398 req_free (grp); 587 PUSHMARK (SP);
399 unblock_sig (); 588 PUTBACK;
589 call_sv (cb, G_DISCARD | G_EVAL);
400 } 590 }
401} 591}
402 592
593static int
403static int req_invoke (aio_req req) 594req_invoke (eio_req *req)
404{ 595{
405 dSP;
406
407 if (req->flags & FLAG_SV1_RO_OFF) 596 if (req->flags & FLAG_SV2_RO_OFF)
408 SvREADONLY_off (req->sv1); 597 SvREADONLY_off (req->sv2);
409 598
410 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 599 if (!EIO_CANCELLED (req) && req->callback)
411 { 600 {
601 dSP;
602 static SV *sv_result_cache; /* caches the result integer SV */
603 SV *sv_result;
604
412 ENTER; 605 ENTER;
413 SAVETMPS; 606 SAVETMPS;
414 PUSHMARK (SP); 607 PUSHMARK (SP);
415 EXTEND (SP, 1); 608 EXTEND (SP, 1);
416 609
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
417 switch (req->type) 623 switch (req->type)
418 { 624 {
625 case EIO_WD_OPEN:
626 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
627 break;
628
419 case REQ_READDIR: 629 case EIO_READDIR:
420 { 630 {
421 SV *rv = &PL_sv_undef; 631 SV *rv = &PL_sv_undef;
422 632
423 if (req->result >= 0) 633 if (req->result >= 0)
424 { 634 {
425 int i; 635 int i;
426 char *buf = req->ptr2; 636 char *names = (char *)req->ptr2;
637 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
427 AV *av = newAV (); 638 AV *av = newAV ();
428 639
429 av_extend (av, req->result - 1); 640 av_extend (av, req->result - 1);
430 641
431 for (i = 0; i < req->result; ++i) 642 for (i = 0; i < req->result; ++i)
432 { 643 {
433 SV *sv = newSVpv (buf, 0); 644 if (req->int1 & EIO_READDIR_DENTS)
645 {
646 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
434 647
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
435 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);
436 buf += SvCUR (sv) + 1; 676 names += SvCUR (name) + 1;
677 }
437 } 678 }
438 679
439 rv = sv_2mortal (newRV_noinc ((SV *)av)); 680 rv = sv_2mortal (newRV_noinc ((SV *)av));
440 } 681 }
441 682
442 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))));
443 } 687 }
444 break; 688 break;
445 689
446 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:
447 { 696 {
448 /* convert fd to fh */ 697 SV *rv = &PL_sv_undef;
449 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));
450 709
451 PUSHs (sv_2mortal (newSViv (req->result))); 710 rv = sv_2mortal (newRV_noinc ((SV *)hv));
452 PUTBACK;
453 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
454 SPAGAIN;
455 711
456 fh = POPs; 712 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
457 PUSHMARK (SP); 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
725
458 XPUSHs (fh); 726 PUSHs (rv);
459 } 727 }
728
460 break; 729 break;
461 730
462 case REQ_GROUP: 731 case EIO_GROUP:
463 req->int1 = 2; /* mark group as finished */ 732 req->int1 = 2; /* mark group as finished */
464 733
465 if (req->sv1) 734 if (req->sv1)
466 { 735 {
467 int i; 736 int i;
… …
471 for (i = 0; i <= AvFILL (av); ++i) 740 for (i = 0; i <= AvFILL (av); ++i)
472 PUSHs (*av_fetch (av, i, 0)); 741 PUSHs (*av_fetch (av, i, 0));
473 } 742 }
474 break; 743 break;
475 744
476 case REQ_NOP: 745 case EIO_NOP:
477 case REQ_BUSY: 746 case EIO_BUSY:
478 break; 747 break;
479 748
480 case REQ_READLINK: 749 case EIO_READLINK:
750 case EIO_REALPATH:
481 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)
482 { 807 {
483 SvCUR_set (req->sv1, req->result); 808#if HAVE_FIEMAP
484 *SvEND (req->sv1) = 0;
485 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
486 } 840 }
841 else
842 PUSHs (sv_result);
487 break; 843 break;
488 844
489 case REQ_STAT: 845#if 0
490 case REQ_LSTAT: 846 case EIO_CLOSE:
491 case REQ_FSTAT: 847 PerlIOUnix_refcnt_dec (req->int1);
492 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
493 PL_laststatval = req->result;
494 PL_statcache = *(Stat_t *)(req->ptr2);
495 PUSHs (sv_2mortal (newSViv (req->result)));
496 break; 848 break;
849#endif
497 850
498 case REQ_READ: 851 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
499 SvCUR_set (req->sv1, req->stroffset + (req->result > 0 ? req->result : 0)); 852 if (req->result > 0)
500 *SvEND (req->sv1) = 0; 853 SvIV_set (sv_result, 0);
501 PUSHs (sv_2mortal (newSViv (req->result))); 854 /* FALLTHROUGH */
502 break;
503 855
504 default: 856 default:
505 PUSHs (sv_2mortal (newSViv (req->result))); 857 PUSHs (sv_result);
506 break; 858 break;
507 } 859 }
508 860
509 errno = req->errorno; 861 errno = req->errorno;
510 862
511 PUTBACK; 863 PUTBACK;
512 call_sv (req->callback, G_VOID | G_EVAL); 864 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
513 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;
514 871
515 FREETMPS; 872 FREETMPS;
516 LEAVE; 873 LEAVE;
874
875 PUTBACK;
517 } 876 }
518 877
519 if (req->grp)
520 {
521 aio_req grp = req->grp;
522
523 /* unlink request */
524 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
525 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
526
527 if (grp->grp_first == req)
528 grp->grp_first = req->grp_next;
529
530 aio_grp_dec (grp);
531 }
532
533 return !SvTRUE (ERRSV); 878 return !!SvTRUE (ERRSV);
534} 879}
535 880
536static void req_free (aio_req req) 881static void
882req_destroy (aio_req req)
537{ 883{
538 if (req->self) 884 if (req->self)
539 { 885 {
540 sv_unmagic (req->self, PERL_MAGIC_ext); 886 sv_unmagic (req->self, PERL_MAGIC_ext);
541 SvREFCNT_dec (req->self); 887 SvREFCNT_dec (req->self);
542 } 888 }
543 889
544 SvREFCNT_dec (req->fh);
545 SvREFCNT_dec (req->sv1); 890 SvREFCNT_dec (req->sv1);
546 SvREFCNT_dec (req->sv2); 891 SvREFCNT_dec (req->sv2);
892 SvREFCNT_dec (req->sv3);
893 SvREFCNT_dec (req->sv4);
547 SvREFCNT_dec (req->callback); 894 SvREFCNT_dec (req->callback);
548 895
549 if (req->flags & FLAG_PTR2_FREE)
550 free (req->ptr2);
551
552 Safefree (req); 896 free (req);
553} 897}
554 898
899static void
555static void req_cancel_subs (aio_req grp) 900req_cancel_subs (aio_req grp)
556{ 901{
557 aio_req sub;
558
559 if (grp->type != REQ_GROUP) 902 if (grp->type != EIO_GROUP)
560 return; 903 return;
561 904
562 SvREFCNT_dec (grp->sv2); 905 SvREFCNT_dec (grp->sv2);
563 grp->sv2 = 0; 906 grp->sv2 = 0;
564 907
565 for (sub = grp->grp_first; sub; sub = sub->grp_next) 908 eio_grp_cancel (grp);
566 req_cancel (sub);
567} 909}
568 910
569static void req_cancel (aio_req req) 911ecb_cold
912static void
913create_respipe (void)
570{ 914{
571 req->flags |= FLAG_CANCELLED; 915 if (s_epipe_renew (&respipe))
572 916 croak ("IO::AIO: unable to initialize result pipe");
573 req_cancel_subs (req);
574} 917}
575 918
576static void *aio_proc(void *arg); 919static void
577 920poll_wait (void)
578static void start_thread (void)
579{ 921{
580 worker *wrk = calloc (1, sizeof (worker));
581
582 if (!wrk)
583 croak ("unable to allocate worker thread data");
584
585 LOCK (wrklock);
586
587 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
588 {
589 wrk->prev = &wrk_first;
590 wrk->next = wrk_first.next;
591 wrk_first.next->prev = wrk;
592 wrk_first.next = wrk;
593 ++started;
594 }
595 else
596 free (wrk);
597
598 UNLOCK (wrklock);
599}
600
601static void maybe_start_thread ()
602{
603 if (get_nthreads () >= wanted)
604 return;
605
606 /* todo: maybe use idle here, but might be less exact */
607 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
608 return;
609
610 start_thread ();
611}
612
613static void req_send (aio_req req)
614{
615 block_sig ();
616
617 ++nreqs;
618
619 LOCK (reqlock);
620 ++nready;
621 reqq_push (&req_queue, req);
622 COND_SIGNAL (reqwait);
623 UNLOCK (reqlock);
624
625 unblock_sig ();
626
627 maybe_start_thread ();
628}
629
630static void end_thread (void)
631{
632 aio_req req;
633
634 Newz (0, req, 1, aio_cb);
635
636 req->type = REQ_QUIT;
637 req->pri = PRI_MAX + PRI_BIAS;
638
639 LOCK (reqlock);
640 reqq_push (&req_queue, req);
641 COND_SIGNAL (reqwait);
642 UNLOCK (reqlock);
643
644 LOCK (wrklock);
645 --started;
646 UNLOCK (wrklock);
647}
648
649static void set_max_idle (int nthreads)
650{
651 if (WORDACCESS_UNSAFE) LOCK (reqlock);
652 max_idle = nthreads <= 0 ? 1 : nthreads;
653 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
654}
655
656static void min_parallel (int nthreads)
657{
658 if (wanted < nthreads)
659 wanted = nthreads;
660}
661
662static void max_parallel (int nthreads)
663{
664 if (wanted > nthreads)
665 wanted = nthreads;
666
667 while (started > wanted)
668 end_thread ();
669}
670
671static void poll_wait ()
672{
673 fd_set rfd;
674
675 while (nreqs) 922 while (eio_nreqs ())
676 { 923 {
677 int size; 924 int size;
678 if (WORDACCESS_UNSAFE) LOCK (reslock); 925
926 X_LOCK (EIO_POOL->reslock);
679 size = res_queue.size; 927 size = EIO_POOL->res_queue.size;
680 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 928 X_UNLOCK (EIO_POOL->reslock);
681 929
682 if (size) 930 if (size)
683 return; 931 return;
684 932
685 maybe_start_thread (); 933 etp_maybe_start_thread (EIO_POOL);
686 934
687 FD_ZERO(&rfd); 935 s_epipe_wait (&respipe);
688 FD_SET(respipe [0], &rfd);
689
690 select (respipe [0] + 1, &rfd, 0, 0, 0);
691 } 936 }
692} 937}
693 938
694static int poll_cb () 939static int
940poll_cb (void)
695{ 941{
696 dSP;
697 int count = 0;
698 int maxreqs = max_poll_reqs;
699 int do_croak = 0;
700 struct timeval tv_start, tv_now;
701 aio_req req;
702
703 if (max_poll_time)
704 gettimeofday (&tv_start, 0);
705
706 block_sig ();
707
708 for (;;) 942 for (;;)
709 { 943 {
710 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)
711 { 1018 {
712 maybe_start_thread (); 1019 path = AvARRAY (rv)[1];
1020 wdob = AvARRAY (rv)[0];
713 1021
714 LOCK (reslock); 1022 if (SvOK (wdob))
715 req = reqq_shift (&res_queue);
716
717 if (req)
718 { 1023 {
719 --npending; 1024 *wd = SvAIO_WD (wdob);
720 1025 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
721 if (!res_queue.size)
722 {
723 /* read any signals sent by the worker threads */
724 char buf [4];
725 while (read (respipe [0], buf, 4) == 4)
726 ;
727 }
728 }
729
730 UNLOCK (reslock);
731
732 if (!req)
733 break;
734
735 --nreqs;
736
737 if (req->type == REQ_GROUP && req->size)
738 {
739 req->int1 = 1; /* mark request as delayed */
740 continue;
741 } 1026 }
742 else 1027 else
743 { 1028 *wd = EIO_INVALID_WD;
744 if (!req_invoke (req))
745 {
746 req_free (req);
747 unblock_sig ();
748 croak (0);
749 }
750
751 count++;
752 }
753
754 req_free (req);
755
756 if (maxreqs && !--maxreqs)
757 break;
758
759 if (max_poll_time)
760 {
761 gettimeofday (&tv_now, 0);
762
763 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
764 break;
765 }
766 } 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 }
767 1040
768 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)));
769 break; 1066 break;
770 1067
771 poll_wait (); 1068 default:
772 1069 req->type = type_path;
773 ++maxreqs; 1070 req_set_path1 (req, fh_or_path);
1071 break;
774 } 1072 }
775
776 unblock_sig ();
777 return count;
778}
779
780static void create_pipe ()
781{
782 if (pipe (respipe))
783 croak ("unable to initialize result pipe");
784
785 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
786 croak ("cannot set result pipe to nonblocking mode");
787
788 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
789 croak ("cannot set result pipe to nonblocking mode");
790} 1073}
791 1074
792/*****************************************************************************/ 1075/*****************************************************************************/
793/* work around various missing functions */
794 1076
795#if !HAVE_PREADWRITE 1077static void
796# define pread aio_pread 1078ts_set (struct timespec *ts, NV value)
797# define pwrite aio_pwrite
798
799/*
800 * make our pread/pwrite safe against themselves, but not against
801 * normal read/write by using a mutex. slows down execution a lot,
802 * but that's your problem, not mine.
803 */
804static mutex_t preadwritelock = MUTEX_INIT;
805
806static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
807{ 1079{
808 ssize_t res; 1080 ts->tv_sec = value;
809 off_t ooffset; 1081 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
810
811 LOCK (preadwritelock);
812 ooffset = lseek (fd, 0, SEEK_CUR);
813 lseek (fd, offset, SEEK_SET);
814 res = read (fd, buf, count);
815 lseek (fd, ooffset, SEEK_SET);
816 UNLOCK (preadwritelock);
817
818 return res;
819} 1082}
820 1083
821static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1084static NV
1085ts_get (const struct timespec *ts)
822{ 1086{
823 ssize_t res; 1087 return ts->tv_sec + ts->tv_nsec * 1e-9;
824 off_t ooffset;
825
826 LOCK (preadwritelock);
827 ooffset = lseek (fd, 0, SEEK_CUR);
828 lseek (fd, offset, SEEK_SET);
829 res = write (fd, buf, count);
830 lseek (fd, offset, SEEK_SET);
831 UNLOCK (preadwritelock);
832
833 return res;
834} 1088}
835#endif
836 1089
837#if !HAVE_FDATASYNC 1090/*****************************************************************************/
838# define fdatasync fsync
839#endif
840 1091
841#if !HAVE_READAHEAD 1092XS(boot_IO__AIO) ecb_cold;
842# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
843 1093
844static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 1094MODULE = IO::AIO PACKAGE = IO::AIO
845{
846 dBUF;
847 1095
848 while (count > 0) 1096PROTOTYPES: ENABLE
849 {
850 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
851 1097
852 pread (fd, aio_buf, len, offset); 1098BOOT:
853 offset += len;
854 count -= len;
855 }
856
857 errno = 0;
858}
859
860#endif
861
862#if !HAVE_READDIR_R
863# define readdir_r aio_readdir_r
864
865static mutex_t readdirlock = MUTEX_INIT;
866
867static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
868{ 1099{
869 struct dirent *e; 1100 static const struct {
870 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 },
871 1107
872 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)
873 1113
874 e = readdir (dirp); 1114 /* for lseek */
875 errorno = errno; 1115 const_iv (SEEK_DATA)
1116 const_iv (SEEK_HOLE)
876 1117
877 if (e) 1118 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
878 { 1119 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
879 *res = ent; 1120 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
880 strcpy (ent->d_name, e->d_name); 1121 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
881 } 1122 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
882 else 1123 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
883 *res = 0;
884 1124
885 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)
886 1130
887 errno = errorno; 1131 /* the second block will be 0 when missing */
888 return e ? 0 : -1; 1132 const_iv (O_ACCMODE)
889}
890#endif
891 1133
892/* sendfile always needs emulation */ 1134 const_iv (O_RDONLY)
893static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) 1135 const_iv (O_WRONLY)
894{ 1136 const_iv (O_RDWR)
895 ssize_t res; 1137 const_iv (O_CREAT)
1138 const_iv (O_TRUNC)
1139 const_iv (O_EXCL)
1140 const_iv (O_APPEND)
896 1141
897 if (!count) 1142 const_iv (O_ASYNC)
898 return 0; 1143 const_iv (O_DIRECT)
1144 const_iv (O_NOATIME)
899 1145
900#if HAVE_SENDFILE 1146 const_iv (O_CLOEXEC)
901# if __linux 1147 const_iv (O_NOCTTY)
902 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)
903 1159
904# elif __freebsd 1160 const_iv (S_IFIFO)
905 /* 1161 const_iv (S_IFCHR)
906 * Of course, the freebsd sendfile is a dire hack with no thoughts 1162 const_iv (S_IFBLK)
907 * wasted on making it similar to other I/O functions. 1163 const_iv (S_IFLNK)
908 */ 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 */
909 { 1426 {
910 off_t sbytes; 1427 int pipefd [2];
911 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
912 1428
913 if (res < 0 && sbytes) 1429 if (
914 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ 1430#ifdef _WIN32
915 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];
916 } 1441 }
917 1442
918# elif __hpux 1443 reinit ();
919 res = sendfile (ofd, ifd, offset, count, 0, 0);
920
921# elif __solaris
922 {
923 struct sendfilevec vec;
924 size_t sbytes;
925
926 vec.sfv_fd = ifd;
927 vec.sfv_flag = 0;
928 vec.sfv_off = offset;
929 vec.sfv_len = count;
930
931 res = sendfilev (ofd, &vec, 1, &sbytes);
932
933 if (res < 0 && sbytes)
934 res = sbytes;
935 }
936
937# endif
938#else
939 res = -1;
940 errno = ENOSYS;
941#endif
942
943 if (res < 0
944 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
945#if __solaris
946 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
947#endif
948 )
949 )
950 {
951 /* emulate sendfile. this is a major pain in the ass */
952 dBUF;
953
954 res = 0;
955
956 while (count)
957 {
958 ssize_t cnt;
959
960 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
961
962 if (cnt <= 0)
963 {
964 if (cnt && !res) res = -1;
965 break;
966 }
967
968 cnt = write (ofd, aio_buf, cnt);
969
970 if (cnt <= 0)
971 {
972 if (cnt && !res) res = -1;
973 break;
974 }
975
976 offset += cnt;
977 res += cnt;
978 count -= cnt;
979 }
980 }
981
982 return res;
983} 1444}
984 1445
985/* read a full directory */
986static void scandir_ (aio_req req, worker *self)
987{
988 DIR *dirp;
989 union
990 {
991 struct dirent d;
992 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
993 } *u;
994 struct dirent *entp;
995 char *name, *names;
996 int memlen = 4096;
997 int memofs = 0;
998 int res = 0;
999 int errorno;
1000
1001 LOCK (wrklock);
1002 self->dirp = dirp = opendir (req->ptr1);
1003 self->dbuf = u = malloc (sizeof (*u));
1004 req->flags |= FLAG_PTR2_FREE;
1005 req->ptr2 = names = malloc (memlen);
1006 UNLOCK (wrklock);
1007
1008 if (dirp && u && names)
1009 for (;;)
1010 {
1011 errno = 0;
1012 readdir_r (dirp, &u->d, &entp);
1013
1014 if (!entp)
1015 break;
1016
1017 name = entp->d_name;
1018
1019 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1020 {
1021 int len = strlen (name) + 1;
1022
1023 res++;
1024
1025 while (memofs + len > memlen)
1026 {
1027 memlen *= 2;
1028 LOCK (wrklock);
1029 req->ptr2 = names = realloc (names, memlen);
1030 UNLOCK (wrklock);
1031
1032 if (!names)
1033 break;
1034 }
1035
1036 memcpy (names + memofs, name, len);
1037 memofs += len;
1038 }
1039 }
1040
1041 if (errno)
1042 res = -1;
1043
1044 req->result = res;
1045}
1046
1047/*****************************************************************************/
1048
1049static void *aio_proc (void *thr_arg)
1050{
1051 aio_req req;
1052 struct timespec ts;
1053 worker *self = (worker *)thr_arg;
1054
1055 /* try to distribute timeouts somewhat evenly */
1056 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1057 * (1000000000UL / 1024UL);
1058
1059 for (;;)
1060 {
1061 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1062
1063 LOCK (reqlock);
1064
1065 for (;;)
1066 {
1067 self->req = req = reqq_shift (&req_queue);
1068
1069 if (req)
1070 break;
1071
1072 ++idle;
1073
1074 if (COND_TIMEDWAIT (reqwait, reqlock, ts)
1075 == ETIMEDOUT)
1076 {
1077 if (idle > max_idle)
1078 {
1079 --idle;
1080 UNLOCK (reqlock);
1081 LOCK (wrklock);
1082 --started;
1083 UNLOCK (wrklock);
1084 goto quit;
1085 }
1086
1087 /* we are allowed to idle, so do so without any timeout */
1088 COND_WAIT (reqwait, reqlock);
1089 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1090 }
1091
1092 --idle;
1093 }
1094
1095 --nready;
1096
1097 UNLOCK (reqlock);
1098
1099 errno = 0; /* strictly unnecessary */
1100
1101 if (!(req->flags & FLAG_CANCELLED))
1102 switch (req->type)
1103 {
1104 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1105 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1106
1107 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1108 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1109
1110 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1111 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1112 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1113
1114 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1115 case REQ_CLOSE: req->result = close (req->int1); break;
1116 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1117 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1118 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1119 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1120 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1121 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1122 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1123 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1124
1125 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1126 case REQ_FSYNC: req->result = fsync (req->int1); break;
1127 case REQ_READDIR: scandir_ (req, self); break;
1128
1129 case REQ_BUSY:
1130 {
1131 struct timeval tv;
1132
1133 tv.tv_sec = req->int1;
1134 tv.tv_usec = req->int2;
1135
1136 req->result = select (0, 0, 0, 0, &tv);
1137 }
1138
1139 case REQ_GROUP:
1140 case REQ_NOP:
1141 break;
1142
1143 case REQ_QUIT:
1144 goto quit;
1145
1146 default:
1147 req->result = ENOSYS;
1148 break;
1149 }
1150
1151 req->errorno = errno;
1152
1153 LOCK (reslock);
1154
1155 ++npending;
1156
1157 if (!reqq_push (&res_queue, req))
1158 {
1159 /* write a dummy byte to the pipe so fh becomes ready */
1160 write (respipe [1], &respipe, 1);
1161
1162 /* optionally signal the main thread asynchronously */
1163 if (main_sig)
1164 pthread_kill (main_tid, main_sig);
1165 }
1166
1167 self->req = 0;
1168 worker_clear (self);
1169
1170 UNLOCK (reslock);
1171 }
1172
1173quit:
1174 LOCK (wrklock);
1175 worker_free (self);
1176 UNLOCK (wrklock);
1177
1178 return 0;
1179}
1180
1181/*****************************************************************************/
1182
1183static void atfork_prepare (void)
1184{
1185 LOCK (wrklock);
1186 LOCK (reqlock);
1187 LOCK (reslock);
1188#if !HAVE_PREADWRITE
1189 LOCK (preadwritelock);
1190#endif
1191#if !HAVE_READDIR_R
1192 LOCK (readdirlock);
1193#endif
1194}
1195
1196static void atfork_parent (void)
1197{
1198#if !HAVE_READDIR_R
1199 UNLOCK (readdirlock);
1200#endif
1201#if !HAVE_PREADWRITE
1202 UNLOCK (preadwritelock);
1203#endif
1204 UNLOCK (reslock);
1205 UNLOCK (reqlock);
1206 UNLOCK (wrklock);
1207}
1208
1209static void atfork_child (void)
1210{
1211 aio_req prv;
1212
1213 while (prv = reqq_shift (&req_queue))
1214 req_free (prv);
1215
1216 while (prv = reqq_shift (&res_queue))
1217 req_free (prv);
1218
1219 while (wrk_first.next != &wrk_first)
1220 {
1221 worker *wrk = wrk_first.next;
1222
1223 if (wrk->req)
1224 req_free (wrk->req);
1225
1226 worker_clear (wrk);
1227 worker_free (wrk);
1228 }
1229
1230 started = 0;
1231 idle = 0;
1232 nreqs = 0;
1233 nready = 0;
1234 npending = 0;
1235
1236 close (respipe [0]);
1237 close (respipe [1]);
1238 create_pipe ();
1239
1240 atfork_parent ();
1241}
1242
1243#define dREQ \
1244 aio_req req; \
1245 int req_pri = next_pri; \
1246 next_pri = DEFAULT_PRI + PRI_BIAS; \
1247 \
1248 if (SvOK (callback) && !SvROK (callback)) \
1249 croak ("callback must be undef or of reference type"); \
1250 \
1251 Newz (0, req, 1, aio_cb); \
1252 if (!req) \
1253 croak ("out of memory during aio_req allocation"); \
1254 \
1255 req->callback = newSVsv (callback); \
1256 req->pri = req_pri
1257
1258#define REQ_SEND \
1259 req_send (req); \
1260 \
1261 if (GIMME_V != G_VOID) \
1262 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1263
1264MODULE = IO::AIO PACKAGE = IO::AIO
1265
1266PROTOTYPES: ENABLE
1267
1268BOOT:
1269{
1270 HV *stash = gv_stashpv ("IO::AIO", 1);
1271
1272 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1273 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1274 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1275 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1276 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1277 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1278 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1279
1280 create_pipe ();
1281 ATFORK (atfork_prepare, atfork_parent, atfork_child);
1282}
1283
1284void 1446void
1447reinit ()
1448 PROTOTYPE:
1449
1450void
1285max_poll_reqs (int nreqs) 1451max_poll_reqs (unsigned int nreqs)
1286 PROTOTYPE: $ 1452 PROTOTYPE: $
1287 CODE: 1453 CODE:
1288 max_poll_reqs = nreqs; 1454 eio_set_max_poll_reqs (nreqs);
1289 1455
1290void 1456void
1291max_poll_time (double nseconds) 1457max_poll_time (double nseconds)
1292 PROTOTYPE: $ 1458 PROTOTYPE: $
1293 CODE: 1459 CODE:
1294 max_poll_time = nseconds * AIO_TICKS; 1460 eio_set_max_poll_time (nseconds);
1295 1461
1296void 1462void
1297min_parallel (int nthreads) 1463min_parallel (unsigned int nthreads)
1298 PROTOTYPE: $
1299
1300void
1301max_parallel (int nthreads)
1302 PROTOTYPE: $
1303
1304void
1305max_idle (int nthreads)
1306 PROTOTYPE: $ 1464 PROTOTYPE: $
1307 CODE: 1465 CODE:
1308 set_max_idle (nthreads); 1466 eio_set_min_parallel (nthreads);
1309 1467
1310int 1468void
1311max_outstanding (int maxreqs) 1469max_parallel (unsigned int nthreads)
1312 PROTOTYPE: $ 1470 PROTOTYPE: $
1313 CODE: 1471 CODE:
1314 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:
1315 max_outstanding = maxreqs; 1490 max_outstanding = maxreqs;
1316 OUTPUT:
1317 RETVAL
1318 1491
1319void 1492void
1320aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1493aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1321 SV8 * pathname
1322 int flags
1323 int mode
1324 SV * callback
1325 PROTOTYPE: $$$;$
1326 PPCODE: 1494 PPCODE:
1327{ 1495{
1328 dREQ; 1496 dREQ;
1329 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
1330 req->type = REQ_OPEN; 1510 req->type = EIO_OPEN;
1331 req->sv1 = newSVsv (pathname); 1511 req_set_path1 (req, pathname);
1332 req->ptr1 = SvPVbyte_nolen (req->sv1);
1333 req->int1 = flags; 1512 req->int1 = flags;
1334 req->mode = mode; 1513 req->int2 = mode;
1335 1514
1336 REQ_SEND; 1515 REQ_SEND;
1337} 1516}
1338 1517
1339void 1518void
1340aio_close (fh,callback=&PL_sv_undef) 1519aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1341 SV * fh
1342 SV * callback
1343 PROTOTYPE: $;$
1344 ALIAS: 1520 ALIAS:
1345 aio_close = REQ_CLOSE
1346 aio_fsync = REQ_FSYNC 1521 aio_fsync = EIO_FSYNC
1347 aio_fdatasync = REQ_FDATASYNC 1522 aio_fdatasync = EIO_FDATASYNC
1523 aio_syncfs = EIO_SYNCFS
1348 PPCODE: 1524 PPCODE:
1349{ 1525{
1526 int fd = s_fileno_croak (fh, 0);
1350 dREQ; 1527 dREQ;
1351 1528
1352 req->type = ix; 1529 req->type = ix;
1353 req->fh = newSVsv (fh); 1530 req->sv1 = newSVsv (fh);
1354 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1531 req->int1 = fd;
1355 1532
1356 REQ_SEND (req); 1533 REQ_SEND;
1357} 1534}
1358 1535
1359void 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
1360aio_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)
1361 SV * fh
1362 UV offset
1363 UV length
1364 SV8 * data
1365 UV dataoffset
1366 SV * callback
1367 ALIAS: 1627 ALIAS:
1368 aio_read = REQ_READ 1628 aio_read = EIO_READ
1369 aio_write = REQ_WRITE 1629 aio_write = EIO_WRITE
1370 PROTOTYPE: $$$$$;$
1371 PPCODE: 1630 PPCODE:
1372{ 1631{
1373 STRLEN svlen; 1632 STRLEN svlen;
1633 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1374 char *svptr = SvPVbyte (data, svlen); 1634 char *svptr = SvPVbyte (data, svlen);
1375 1635 UV len = SvUV (length);
1376 SvUPGRADE (data, SVt_PV);
1377 SvPOK_on (data);
1378 1636
1379 if (dataoffset < 0) 1637 if (dataoffset < 0)
1380 dataoffset += svlen; 1638 dataoffset += svlen;
1381 1639
1382 if (dataoffset < 0 || dataoffset > svlen) 1640 if (dataoffset < 0 || dataoffset > svlen)
1383 croak ("data offset outside of string"); 1641 croak ("dataoffset outside of data scalar");
1384 1642
1385 if (ix == REQ_WRITE) 1643 if (ix == EIO_WRITE)
1386 { 1644 {
1387 /* write: check length and adjust. */ 1645 /* write: check length and adjust. */
1388 if (length < 0 || length + dataoffset > svlen) 1646 if (!SvOK (length) || len + dataoffset > svlen)
1389 length = svlen - dataoffset; 1647 len = svlen - dataoffset;
1390 } 1648 }
1391 else 1649 else
1392 { 1650 {
1393 /* read: grow scalar as necessary */ 1651 /* read: check type and grow scalar as necessary */
1652 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1394 svptr = SvGROW (data, length + dataoffset + 1); 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");
1395 } 1656 }
1396
1397 if (length < 0)
1398 croak ("length must not be negative");
1399 1657
1400 { 1658 {
1401 dREQ; 1659 dREQ;
1402 1660
1403 req->type = ix; 1661 req->type = ix;
1404 req->fh = newSVsv (fh); 1662 req->sv1 = newSVsv (fh);
1405 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1663 req->int1 = fd;
1406 : IoOFP (sv_2io (fh))); 1664 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1407 req->offs = offset;
1408 req->size = length; 1665 req->size = len;
1409 req->sv1 = SvREFCNT_inc (data); 1666 req->sv2 = SvREFCNT_inc (data);
1410 req->ptr1 = (char *)svptr + dataoffset; 1667 req->ptr2 = (char *)svptr + dataoffset;
1411 req->stroffset = dataoffset; 1668 req->stroffset = dataoffset;
1412 1669
1413 if (!SvREADONLY (data)) 1670 if (!SvREADONLY (data))
1414 { 1671 {
1415 SvREADONLY_on (data); 1672 SvREADONLY_on (data);
1416 req->flags |= FLAG_SV1_RO_OFF; 1673 req->flags |= FLAG_SV2_RO_OFF;
1417 } 1674 }
1418 1675
1419 REQ_SEND; 1676 REQ_SEND;
1420 } 1677 }
1421} 1678}
1422 1679
1423void 1680void
1424aio_readlink (path,callback=&PL_sv_undef) 1681aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1425 SV8 * path 1682 ALIAS:
1426 SV * callback 1683 aio_ioctl = EIO_IOCTL
1427 PROTOTYPE: $$;$ 1684 aio_fcntl = EIO_FCNTL
1428 PPCODE: 1685 PPCODE:
1429{ 1686{
1430 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{
1431 dREQ; 1727 dREQ;
1432 1728
1433 data = newSV (NAME_MAX);
1434 SvPOK_on (data);
1435
1436 req->type = REQ_READLINK; 1729 req->type = ix;
1437 req->fh = newSVsv (path); 1730 req_set_path1 (req, pathname);
1438 req->ptr2 = SvPVbyte_nolen (req->fh);
1439 req->sv1 = data;
1440 req->ptr1 = SvPVbyte_nolen (data);
1441 1731
1442 REQ_SEND; 1732 REQ_SEND;
1443} 1733}
1444 1734
1445void 1735void
1446aio_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)
1447 SV * out_fh
1448 SV * in_fh
1449 UV in_offset
1450 UV length
1451 SV * callback
1452 PROTOTYPE: $$$$;$
1453 PPCODE: 1737 PPCODE:
1454{ 1738{
1739 int ifd = s_fileno_croak (in_fh , 0);
1740 int ofd = s_fileno_croak (out_fh, 1);
1455 dREQ; 1741 dREQ;
1456 1742
1457 req->type = REQ_SENDFILE; 1743 req->type = EIO_SENDFILE;
1458 req->fh = newSVsv (out_fh); 1744 req->sv1 = newSVsv (out_fh);
1459 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1745 req->int1 = ofd;
1460 req->sv2 = newSVsv (in_fh); 1746 req->sv2 = newSVsv (in_fh);
1461 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1747 req->int2 = ifd;
1462 req->offs = in_offset; 1748 req->offs = in_offset;
1463 req->size = length; 1749 req->size = length;
1464 1750
1465 REQ_SEND; 1751 REQ_SEND;
1466} 1752}
1467 1753
1468void 1754void
1469aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1755aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1470 SV * fh
1471 UV offset
1472 IV length
1473 SV * callback
1474 PROTOTYPE: $$$;$
1475 PPCODE: 1756 PPCODE:
1476{ 1757{
1758 int fd = s_fileno_croak (fh, 0);
1477 dREQ; 1759 dREQ;
1478 1760
1479 req->type = REQ_READAHEAD; 1761 req->type = EIO_READAHEAD;
1480 req->fh = newSVsv (fh); 1762 req->sv1 = newSVsv (fh);
1481 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1763 req->int1 = fd;
1482 req->offs = offset; 1764 req->offs = offset;
1483 req->size = length; 1765 req->size = length;
1484 1766
1485 REQ_SEND; 1767 REQ_SEND;
1486} 1768}
1487 1769
1488void 1770void
1489aio_stat (fh_or_path,callback=&PL_sv_undef) 1771aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1490 SV8 * fh_or_path
1491 SV * callback
1492 ALIAS: 1772 ALIAS:
1493 aio_stat = REQ_STAT 1773 aio_stat = EIO_STAT
1494 aio_lstat = REQ_LSTAT 1774 aio_lstat = EIO_LSTAT
1775 aio_statvfs = EIO_STATVFS
1495 PPCODE: 1776 PPCODE:
1496{ 1777{
1497 dREQ; 1778 dREQ;
1498 1779
1499 req->ptr2 = malloc (sizeof (Stat_t)); 1780 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1500 if (!req->ptr2)
1501 {
1502 req_free (req);
1503 croak ("out of memory during aio_stat statdata allocation");
1504 }
1505
1506 req->flags |= FLAG_PTR2_FREE;
1507
1508 if (SvPOK (fh_or_path))
1509 {
1510 req->type = ix;
1511 req->sv1 = newSVsv (fh_or_path);
1512 req->ptr1 = SvPVbyte_nolen (req->sv1);
1513 }
1514 else
1515 {
1516 req->type = REQ_FSTAT;
1517 req->fh = newSVsv (fh_or_path);
1518 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1519 }
1520 1781
1521 REQ_SEND; 1782 REQ_SEND;
1522} 1783}
1523 1784
1524void 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
1525aio_unlink (pathname,callback=&PL_sv_undef) 1916aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1526 SV8 * pathname
1527 SV * callback
1528 ALIAS: 1917 ALIAS:
1529 aio_unlink = REQ_UNLINK 1918 aio_unlink = EIO_UNLINK
1530 aio_rmdir = REQ_RMDIR 1919 aio_rmdir = EIO_RMDIR
1531 aio_readdir = REQ_READDIR 1920 aio_readdir = EIO_READDIR
1532 PPCODE: 1921 PPCODE:
1533{ 1922{
1534 dREQ; 1923 dREQ;
1535 1924
1536 req->type = ix; 1925 req->type = ix;
1537 req->sv1 = newSVsv (pathname); 1926 req_set_path1 (req, pathname);
1538 req->ptr1 = SvPVbyte_nolen (req->sv1);
1539 1927
1540 REQ_SEND; 1928 REQ_SEND;
1541} 1929}
1542 1930
1543void 1931void
1544aio_mkdir (pathname,mode,callback=&PL_sv_undef)
1545 SV8 * pathname
1546 UV mode
1547 SV * callback
1548 PPCODE:
1549{
1550 dREQ;
1551
1552 req->type = REQ_MKDIR;
1553 req->sv1 = newSVsv (pathname);
1554 req->ptr1 = SvPVbyte_nolen (req->sv1);
1555 req->mode = mode;
1556
1557 REQ_SEND;
1558}
1559
1560void
1561aio_link (oldpath,newpath,callback=&PL_sv_undef) 1932aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1562 SV8 * oldpath
1563 SV8 * newpath
1564 SV * callback
1565 ALIAS: 1933 ALIAS:
1566 aio_link = REQ_LINK 1934 aio_link = EIO_LINK
1567 aio_symlink = REQ_SYMLINK 1935 aio_symlink = EIO_SYMLINK
1568 aio_rename = REQ_RENAME 1936 aio_rename = EIO_RENAME
1569 PPCODE: 1937 PPCODE:
1570{ 1938{
1939 eio_wd wd2 = 0;
1571 dREQ; 1940 dREQ;
1572 1941
1573 req->type = ix; 1942 req->type = ix;
1574 req->fh = newSVsv (oldpath); 1943 req_set_path1 (req, oldpath);
1575 req->ptr2 = SvPVbyte_nolen (req->fh); 1944 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1576 req->sv1 = newSVsv (newpath); 1945 req->int3 = (long)wd2;
1577 req->ptr1 = SvPVbyte_nolen (req->sv1);
1578 1946
1579 REQ_SEND; 1947 REQ_SEND;
1580} 1948}
1581 1949
1582void 1950void
1583aio_mknod (pathname,mode,dev,callback=&PL_sv_undef) 1951aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1584 SV8 * pathname
1585 UV mode
1586 UV dev
1587 SV * callback
1588 PPCODE: 1952 PPCODE:
1589{ 1953{
1954 eio_wd wd2 = 0;
1590 dREQ; 1955 dREQ;
1591 1956
1592 req->type = REQ_MKNOD; 1957 req->type = EIO_RENAME;
1593 req->sv1 = newSVsv (pathname); 1958 req_set_path1 (req, oldpath);
1594 req->ptr1 = SvPVbyte_nolen (req->sv1); 1959 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1595 req->mode = (mode_t)mode; 1960 req->int2 = flags;
1596 req->offs = dev; 1961 req->int3 = (long)wd2;
1597 1962
1598 REQ_SEND; 1963 REQ_SEND;
1599} 1964}
1600 1965
1601void 1966void
1602aio_busy (delay,callback=&PL_sv_undef) 1967aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1603 double delay
1604 SV * callback
1605 PPCODE: 1968 PPCODE:
1606{ 1969{
1607 dREQ; 1970 dREQ;
1608 1971
1609 req->type = REQ_BUSY; 1972 req->type = EIO_MKNOD;
1610 req->int1 = delay < 0. ? 0 : delay; 1973 req->int2 = (mode_t)mode;
1611 req->int2 = delay < 0. ? 0 : 1000. * (delay - req->int1); 1974 req->offs = dev;
1612 1975 req_set_path1 (req, pathname);
1976
1613 REQ_SEND; 1977 REQ_SEND;
1614} 1978}
1615 1979
1616void 1980void
1617aio_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)
1618 SV * callback 1982 ALIAS:
1619 PROTOTYPE: ;$ 1983 aio_mtouch = EIO_MTOUCH
1984 aio_msync = EIO_MSYNC
1620 PPCODE: 1985 PPCODE:
1621{ 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);
1622 dREQ; 2062 dREQ;
1623 2063
1624 req->type = REQ_GROUP; 2064 req->type = EIO_CUSTOM;
2065 req->sv1 = newSVsv (fh);
2066 req->int1 = fd;
1625 2067
1626 req_send (req); 2068 req->feed = fiemap;
1627 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2069#if HAVE_FIEMAP
1628} 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
1629 2076
2077 REQ_SEND;
2078}
2079
1630void 2080void
1631aio_nop (callback=&PL_sv_undef) 2081aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1632 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)
1633 PPCODE: 2120 PPCODE:
1634{ 2121{
1635 dREQ; 2122 dREQ;
1636 2123
1637 req->type = REQ_NOP; 2124 req->type = EIO_BUSY;
2125 req->nv1 = delay < 0. ? 0. : delay;
1638 2126
1639 REQ_SEND; 2127 REQ_SEND;
1640} 2128}
1641 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
1642int 2159int
1643aioreq_pri (int pri = 0) 2160aioreq_pri (int pri = NO_INIT)
1644 PROTOTYPE: ;$
1645 CODE: 2161 CODE:
1646 RETVAL = next_pri - PRI_BIAS; 2162 RETVAL = next_pri;
1647 if (items > 0) 2163 if (items > 0)
1648 { 2164 {
1649 if (pri < PRI_MIN) pri = PRI_MIN; 2165 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1650 if (pri > PRI_MAX) pri = PRI_MAX; 2166 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1651 next_pri = pri + PRI_BIAS; 2167 next_pri = pri;
1652 } 2168 }
1653 OUTPUT: 2169 OUTPUT:
1654 RETVAL 2170 RETVAL
1655 2171
1656void 2172void
1657aioreq_nice (int nice = 0) 2173aioreq_nice (int nice = 0)
1658 CODE: 2174 CODE:
1659 nice = next_pri - nice; 2175 nice = next_pri - nice;
1660 if (nice < PRI_MIN) nice = PRI_MIN; 2176 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1661 if (nice > PRI_MAX) nice = PRI_MAX; 2177 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1662 next_pri = nice + PRI_BIAS; 2178 next_pri = nice;
1663 2179
1664void 2180void
1665flush () 2181flush ()
1666 PROTOTYPE:
1667 CODE: 2182 CODE:
1668 while (nreqs) 2183 while (eio_nreqs ())
1669 { 2184 {
1670 poll_wait (); 2185 poll_wait ();
1671 poll_cb (); 2186 poll_cb ();
1672 } 2187 }
1673 2188
1674int 2189int
1675poll() 2190poll ()
1676 PROTOTYPE:
1677 CODE: 2191 CODE:
1678 poll_wait (); 2192 poll_wait ();
1679 RETVAL = poll_cb (); 2193 RETVAL = poll_cb ();
1680 OUTPUT: 2194 OUTPUT:
1681 RETVAL 2195 RETVAL
1682 2196
1683int 2197int
1684poll_fileno() 2198poll_fileno ()
1685 PROTOTYPE:
1686 CODE: 2199 CODE:
1687 RETVAL = respipe [0]; 2200 RETVAL = s_epipe_fd (&respipe);
1688 OUTPUT: 2201 OUTPUT:
1689 RETVAL 2202 RETVAL
1690 2203
1691int 2204int
1692poll_cb(...) 2205poll_cb (...)
1693 PROTOTYPE: 2206 PROTOTYPE:
1694 CODE: 2207 CODE:
1695 RETVAL = poll_cb (); 2208 RETVAL = poll_cb ();
1696 OUTPUT: 2209 OUTPUT:
1697 RETVAL 2210 RETVAL
1698 2211
1699void 2212void
1700poll_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 ()
1701 PROTOTYPE: 2412 PROTOTYPE:
1702 CODE: 2413 CODE:
1703 poll_wait (); 2414#if HAVE_STATX
2415 RETVAL = stx.stx_mode;
2416#else
2417 XSRETURN_UNDEF;
2418#endif
2419 OUTPUT:
2420 RETVAL
1704 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
1705void 2535void
1706setsig (int signum = SIGIO) 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
2543 if (salen)
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
2596
2597int
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)
1707 PROTOTYPE: ;$ 2615 PROTOTYPE: ;$
1708 CODE:
1709{
1710 if (block_sig_level)
1711 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1712
1713 LOCK (reslock);
1714 main_tid = pthread_self ();
1715 main_sig = signum;
1716 UNLOCK (reslock);
1717
1718 if (main_sig && npending)
1719 pthread_kill (main_tid, main_sig);
1720}
1721
1722void
1723aio_block (SV *cb)
1724 PROTOTYPE: &
1725 PPCODE: 2616 PPCODE:
1726{ 2617{
1727 int count; 2618 int fd[2];
2619 int res;
1728 2620
1729 block_sig (); 2621 if (flags)
1730 PUSHMARK (SP); 2622#if HAVE_PIPE2
1731 PUTBACK; 2623 res = pipe2 (fd, flags);
1732 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL); 2624#else
1733 SPAGAIN; 2625 res = (errno = ENOSYS, -1);
1734 unblock_sig (); 2626#endif
2627 else
2628 res = pipe (fd);
1735 2629
1736 if (SvTRUE (ERRSV)) 2630 if (!res)
1737 croak (0); 2631 {
2632 EXTEND (SP, 2);
2633 PUSHs (newmortalFH (fd[0], O_RDONLY));
2634 PUSHs (newmortalFH (fd[1], O_WRONLY));
2635 }
2636}
1738 2637
1739 XSRETURN (count); 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));
1740} 2645}
1741 2646
1742int 2647int
1743nreqs() 2648pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
1744 PROTOTYPE: 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 ()
1745 CODE: 2775 CODE:
1746 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;
1747 OUTPUT: 2782 OUTPUT:
1748 RETVAL 2783 RETVAL
1749 2784
1750int 2785void
1751nready() 2786min_fdlimit (UV limit = 0x7fffffffU)
1752 PROTOTYPE:
1753 CODE: 2787 CODE:
1754 RETVAL = get_nready (); 2788{
1755 OUTPUT: 2789#if HAVE_RLIMITS
1756 RETVAL 2790 struct rlimit rl;
2791 rlim_t orig_rlim_max;
2792 UV bit;
1757 2793
1758int 2794 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
1759npending() 2795 goto fail;
1760 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)
1761 CODE: 2846 CODE:
1762 RETVAL = get_npending (); 2847 SvREFCNT_dec (on_next_submit);
1763 OUTPUT: 2848 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1764 RETVAL
1765 2849
1766int 2850PROTOTYPES: DISABLE
1767nthreads() 2851
1768 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)
1769 CODE: 2862 CODE:
1770 if (WORDACCESS_UNSAFE) LOCK (wrklock); 2863{
1771 RETVAL = started; 2864 aio_wd wd = SvAIO_WD (self);
1772 if (WORDACCESS_UNSAFE) UNLOCK (wrklock); 2865#if HAVE_AT
1773 OUTPUT: 2866 {
1774 RETVAL 2867 SV *callback = &PL_sv_undef;
1775 2868 dREQ; /* clobbers next_pri :/ */
1776PROTOTYPES: 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}
1777 2879
1778MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2880MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1779 2881
1780void 2882void
1781cancel (aio_req_ornot req) 2883cancel (aio_req_ornot req)
1782 CODE: 2884 CODE:
1783 req_cancel (req); 2885 eio_cancel (req);
1784 2886
1785void 2887void
1786cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2888cb (aio_req_ornot req, SV *callback = NO_INIT)
1787 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
1788 SvREFCNT_dec (req->callback); 2898 SvREFCNT_dec (req->callback);
1789 req->callback = newSVsv (callback); 2899 req->callback = SvREFCNT_inc (cb_cv);
2900 }
2901}
1790 2902
1791MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2903MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1792 2904
1793void 2905void
1794add (aio_req grp, ...) 2906add (aio_req grp, ...)
1795 PPCODE: 2907 PPCODE:
1796{ 2908{
1797 int i; 2909 int i;
1798 aio_req req;
1799
1800 if (main_sig && !block_sig_level)
1801 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1802 2910
1803 if (grp->int1 == 2) 2911 if (grp->int1 == 2)
1804 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");
1805 2913
1806 for (i = 1; i < items; ++i ) 2914 for (i = 1; i < items; ++i )
1807 { 2915 {
2916 aio_req req;
2917
1808 if (GIMME_V != G_VOID) 2918 if (GIMME_V != G_VOID)
1809 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2919 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1810 2920
1811 req = SvAIO_REQ (ST (i)); 2921 req = SvAIO_REQ (ST (i));
1812 2922
1813 if (req) 2923 if (req)
1814 { 2924 eio_grp_add (grp, req);
1815 ++grp->size;
1816 req->grp = grp;
1817
1818 req->grp_prev = 0;
1819 req->grp_next = grp->grp_first;
1820
1821 if (grp->grp_first)
1822 grp->grp_first->grp_prev = req;
1823
1824 grp->grp_first = req;
1825 }
1826 } 2925 }
1827} 2926}
1828 2927
1829void 2928void
1830cancel_subs (aio_req_ornot req) 2929cancel_subs (aio_req_ornot req)
… …
1839 AV *av; 2938 AV *av;
1840 2939
1841 grp->errorno = errno; 2940 grp->errorno = errno;
1842 2941
1843 av = newAV (); 2942 av = newAV ();
2943 av_extend (av, items - 1);
1844 2944
1845 for (i = 1; i < items; ++i ) 2945 for (i = 1; i < items; ++i )
1846 av_push (av, newSVsv (ST (i))); 2946 av_push (av, newSVsv (ST (i)));
1847 2947
1848 SvREFCNT_dec (grp->sv1); 2948 SvREFCNT_dec (grp->sv1);
… …
1855 grp->errorno = errorno; 2955 grp->errorno = errorno;
1856 2956
1857void 2957void
1858limit (aio_req grp, int limit) 2958limit (aio_req grp, int limit)
1859 CODE: 2959 CODE:
1860 grp->int2 = limit; 2960 eio_grp_limit (grp, limit);
1861 aio_grp_feed (grp);
1862 2961
1863void 2962void
1864feed (aio_req grp, SV *callback=&PL_sv_undef) 2963feed (aio_req grp, SV *callback = &PL_sv_undef)
1865 CODE: 2964 CODE:
1866{ 2965{
1867 SvREFCNT_dec (grp->sv2); 2966 SvREFCNT_dec (grp->sv2);
1868 grp->sv2 = newSVsv (callback); 2967 grp->sv2 = newSVsv (callback);
2968 grp->feed = aio_grp_feed;
1869 2969
1870 if (grp->int2 <= 0) 2970 if (grp->int2 <= 0)
1871 grp->int2 = 2; 2971 grp->int2 = 2;
1872 2972
1873 aio_grp_feed (grp); 2973 eio_grp_limit (grp, grp->int2);
1874} 2974}
1875 2975

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