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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.75 by root, Thu Oct 26 06:44:48 2006 UTC vs.
Revision 1.207 by root, Fri Dec 30 07:40:54 2011 UTC

1/* solaris */ 1#include "libeio/xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux
5# define _GNU_SOURCE
6#endif
7
8#define _REENTRANT 1
9 2
10#include <errno.h> 3#include <errno.h>
11 4
12#include "EXTERN.h" 5#include "EXTERN.h"
13#include "perl.h" 6#include "perl.h"
14#include "XSUB.h" 7#include "XSUB.h"
15 8
16#include "autoconf/config.h" 9#include "schmorp.h"
17
18#include <pthread.h>
19 10
20#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h>
21#include <errno.h> 13#include <errno.h>
22#include <sys/time.h>
23#include <sys/select.h>
24#include <sys/types.h> 14#include <sys/types.h>
25#include <sys/stat.h> 15#include <sys/stat.h>
26#include <limits.h> 16#include <limits.h>
27#include <unistd.h>
28#include <fcntl.h> 17#include <fcntl.h>
29#include <signal.h>
30#include <sched.h> 18#include <sched.h>
31 19
32#if HAVE_SENDFILE 20#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
33# if __linux
34# include <sys/sendfile.h>
35# elif __freebsd
36# include <sys/socket.h>
37# include <sys/uio.h> 21# include <sys/mman.h>
38# elif __hpux 22#endif
23
24/* perl namespace pollution */
25#undef VERSION
26
27/* perl stupidly overrides readdir and maybe others */
28/* with thread-unsafe versions, imagine that :( */
29#undef readdir
30#undef opendir
31#undef closedir
32
33#ifdef _WIN32
34
35 // perl overrides all those nice libc functions
36
37 #undef malloc
38 #undef free
39 #undef open
40 #undef read
41 #undef write
42 #undef send
43 #undef recv
44 #undef stat
45 #undef lstat
46 #undef fstat
47 #undef truncate
48 #undef ftruncate
49 #undef open
50 #undef link
51 #undef close
52 #undef unlink
53 #undef mkdir
54 #undef rmdir
55 #undef rename
56 #undef lseek
57 #undef opendir
58 #undef readdir
59 #undef closedir
60 #undef chmod
61 #undef fchmod
62 #undef dup
63 #undef dup2
64 #undef abort
65 #undef pipe
66
67#else
68
39# include <sys/socket.h> 69 #include <sys/time.h>
40# elif __solaris /* not yet */
41# include <sys/sendfile.h> 70 #include <sys/select.h>
71 #include <unistd.h>
72 #include <utime.h>
73 #include <signal.h>
74
75#endif
76
77#define EIO_STRUCT_STAT Stat_t
78
79/* use NV for 32 bit perls as it allows larger offsets */
80#if IVSIZE >= 8
81# define VAL64 IV
82# define SvVAL64 SvIV
83# define newSVval64 newSViv
84#else
85# define VAL64 NV
86# define SvVAL64 SvNV
87# define newSVval64 newSVnv
88#endif
89
90/*****************************************************************************/
91
92#if __GNUC__ >= 3
93# define expect(expr,value) __builtin_expect ((expr),(value))
94#else
95# define expect(expr,value) (expr)
96#endif
97
98#define expect_false(expr) expect ((expr) != 0, 0)
99#define expect_true(expr) expect ((expr) != 0, 1)
100
101/*****************************************************************************/
102
103typedef SV SV8; /* byte-sv, used for argument-checking */
104typedef int aio_rfd; /* read file desriptor */
105typedef int aio_wfd; /* write file descriptor */
106
107static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
108
109#define EIO_REQ_MEMBERS \
110 SV *callback; \
111 SV *sv1, *sv2; \
112 SV *sv3, *sv4; \
113 STRLEN stroffset; \
114 SV *self;
115
116#define EIO_NO_WRAPPERS 1
117
118#include "libeio/config.h"
119#include "libeio/eio.h"
120
121static int req_invoke (eio_req *req);
122#define EIO_FINISH(req) req_invoke (req)
123static void req_destroy (eio_req *grp);
124#define EIO_DESTROY(req) req_destroy (req)
125
126#include "libeio/eio.c"
127
128/* Linux/others */
129#ifndef O_ASYNC
130# define O_ASYNC 0
131#endif
132#ifndef O_DIRECT
133# define O_DIRECT 0
134#endif
135#ifndef O_NOATIME
136# define O_NOATIME 0
137#endif
138
139/* POSIX */
140#ifndef O_CLOEXEC
141# define O_CLOEXEC 0
142#endif
143#ifndef O_NOFOLLOW
144# define O_NOFOLLOW 0
145#endif
146#ifndef O_NOCTTY
147# define O_NOCTTY 0
148#endif
149#ifndef O_NONBLOCK
150# define O_NONBLOCK 0
151#endif
152#ifndef O_EXEC
153# define O_EXEC 0
154#endif
155#ifndef O_SEARCH
156# define O_SEARCH 0
157#endif
158#ifndef O_DIRECTORY
159# define O_DIRECTORY 0
160#endif
161#ifndef O_DSYNC
162# define O_DSYNC 0
163#endif
164#ifndef O_RSYNC
165# define O_RSYNC 0
166#endif
167#ifndef O_SYNC
168# define O_SYNC 0
169#endif
170#ifndef O_TTY_INIT
171# define O_TTY_INIT 0
172#endif
173
174#ifndef POSIX_FADV_NORMAL
175# define POSIX_FADV_NORMAL 0
176#endif
177#ifndef POSIX_FADV_SEQUENTIAL
178# define POSIX_FADV_SEQUENTIAL 0
179#endif
180#ifndef POSIX_FADV_RANDOM
181# define POSIX_FADV_RANDOM 0
182#endif
183#ifndef POSIX_FADV_NOREUSE
184# define POSIX_FADV_NOREUSE 0
185#endif
186#ifndef POSIX_FADV_WILLNEED
187# define POSIX_FADV_WILLNEED 0
188#endif
189#ifndef POSIX_FADV_DONTNEED
190# define POSIX_FADV_DONTNEED 0
191#endif
192
193#if !HAVE_POSIX_FADVISE
194# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
195#endif
196
197#ifndef POSIX_MADV_NORMAL
198# define POSIX_MADV_NORMAL 0
199#endif
200#ifndef POSIX_MADV_SEQUENTIAL
201# define POSIX_MADV_SEQUENTIAL 0
202#endif
203#ifndef POSIX_MADV_RANDOM
204# define POSIX_MADV_RANDOM 0
205#endif
206#ifndef POSIX_MADV_WILLNEED
207# define POSIX_MADV_WILLNEED 0
208#endif
209#ifndef POSIX_MADV_DONTNEED
210# define POSIX_MADV_DONTNEED 0
211#endif
212
213#if !HAVE_POSIX_MADVISE
214# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
215#endif
216
217#ifndef PROT_NONE
218# define PROT_NONE 0
219#endif
220#ifndef PROT_READ
221# define PROT_READ 0
222#endif
223#ifndef PROT_WRITE
224# define PROT_READ 0
225#endif
226#ifndef PROT_EXEC
227# define PROT_EXEC 0
228#endif
229
230#ifndef ST_RDONLY
231# define ST_RDONLY 0
232#endif
233#ifndef ST_NOSUID
234# define ST_NOSUID 0
235#endif
236#ifndef ST_NODEV
237# define ST_NODEV 0
238#endif
239#ifndef ST_NOEXEC
240# define ST_NOEXEC 0
241#endif
242#ifndef ST_SYNCHRONOUS
243# define ST_SYNCHRONOUS 0
244#endif
245#ifndef ST_MANDLOCK
246# define ST_MANDLOCK 0
247#endif
248#ifndef ST_WRITE
249# define ST_WRITE 0
250#endif
251#ifndef ST_APPEND
252# define ST_APPEND 0
253#endif
254#ifndef ST_IMMUTABLE
255# define ST_IMMUTABLE 0
256#endif
257#ifndef ST_NOATIME
258# define ST_NOATIME 0
259#endif
260#ifndef ST_NODIRATIME
261# define ST_NODIRATIME 0
262#endif
263#ifndef ST_RELATIME
264# define ST_RELATIME 0
265#endif
266
267#ifndef S_IFIFO
268# define S_IFIFO 0
269#endif
270#ifndef S_IFCHR
271# define S_IFCHR 0
272#endif
273#ifndef S_IFBLK
274# define S_IFBLK 0
275#endif
276#ifndef S_IFLNK
277# define S_IFLNK 0
278#endif
279#ifndef S_IFREG
280# define S_IFREG 0
281#endif
282#ifndef S_IFDIR
283# define S_IFDIR 0
284#endif
285#ifndef S_IFWHT
286# define S_IFWHT 0
287#endif
288#ifndef S_IFSOCK
289# define S_IFSOCK 0
290#endif
291
292#ifndef MAP_ANONYMOUS
293# ifdef MAP_ANON
294# define MAP_ANONYMOUS MAP_ANON
42# else 295# else
43# error sendfile support requested but not available 296# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
44# endif 297# endif
45#endif 298#endif
46 299#ifndef MAP_HUGETLB
47/* used for struct dirent, AIX doesn't provide it */ 300# define MAP_HUGETLB 0
48#ifndef NAME_MAX
49# define NAME_MAX 4096
50#endif 301#endif
51 302#ifndef MAP_LOCKED
52#ifndef PTHREAD_STACK_MIN 303# define MAP_LOCKED 0
53/* care for broken platforms, e.g. windows */
54# define PTHREAD_STACK_MIN 16384
55#endif 304#endif
56 305#ifndef MAP_NORESERVE
57#if __ia64 306# define MAP_NORESERVE 0
58# define STACKSIZE 65536
59#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
60# define STACKSIZE PTHREAD_STACK_MIN
61#else
62# define STACKSIZE 16384
63#endif 307#endif
308#ifndef MAP_POPULATE
309# define MAP_POPULATE 0
310#endif
311#ifndef MAP_NONBLOCK
312# define MAP_NONBLOCK 0
313#endif
64 314
65/* buffer size for various temporary buffers */ 315#ifndef makedev
66#define AIO_BUFSIZE 65536 316# define makedev(maj,min) (((maj) << 8) | (min))
317#endif
318#ifndef major
319# define major(dev) ((dev) >> 8)
320#endif
321#ifndef minor
322# define minor(dev) ((dev) & 0xff)
323#endif
67 324
68#define dBUF \ 325#ifndef PAGESIZE
69 char *aio_buf; \ 326# define PAGESIZE sysconf (_SC_PAGESIZE)
70 LOCK (wrklock); \ 327#endif
71 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
72 UNLOCK (wrklock); \
73 if (!aio_buf) \
74 return -1;
75 328
76enum { 329enum {
77 REQ_QUIT, 330 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
78 REQ_OPEN, REQ_CLOSE,
79 REQ_READ, REQ_WRITE, REQ_READAHEAD,
80 REQ_SENDFILE,
81 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
82 REQ_FSYNC, REQ_FDATASYNC,
83 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
84 REQ_READDIR,
85 REQ_LINK, REQ_SYMLINK,
86 REQ_GROUP, REQ_NOP,
87 REQ_BUSY,
88}; 331};
89 332
90#define AIO_REQ_KLASS "IO::AIO::REQ"
91#define AIO_GRP_KLASS "IO::AIO::GRP"
92
93typedef struct aio_cb
94{
95 struct aio_cb *volatile next;
96
97 SV *data, *callback;
98 SV *fh, *fh2;
99 void *dataptr, *data2ptr;
100 Stat_t *statdata;
101 off_t offset;
102 size_t length;
103 ssize_t result;
104
105 STRLEN dataoffset;
106 int type;
107 int fd, fd2;
108 int errorno;
109 mode_t mode; /* open */
110
111 unsigned char flags;
112 unsigned char pri;
113
114 SV *self; /* the perl counterpart of this request, if any */
115 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
116} aio_cb;
117
118enum {
119 FLAG_CANCELLED = 0x01,
120};
121
122typedef aio_cb *aio_req; 333typedef eio_req *aio_req;
123typedef aio_cb *aio_req_ornot; 334typedef eio_req *aio_req_ornot;
335typedef eio_wd aio_wd;
124 336
125enum { 337static SV *on_next_submit;
126 PRI_MIN = -4, 338static int next_pri = EIO_PRI_DEFAULT;
127 PRI_MAX = 4, 339static int max_outstanding;
128 340
129 DEFAULT_PRI = 0, 341static s_epipe respipe;
130 PRI_BIAS = -PRI_MIN,
131 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
132};
133 342
134static int next_pri = DEFAULT_PRI + PRI_BIAS;
135
136static int started, wanted;
137static volatile int nreqs;
138static int respipe [2];
139
140#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
141# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
142#else
143# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
144#endif
145
146#define LOCK(mutex) pthread_mutex_lock (&(mutex))
147#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
148
149/* worker threasd management */
150static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
151
152typedef struct worker {
153 /* locked by wrklock */
154 struct worker *prev, *next;
155
156 pthread_t tid;
157
158 /* locked by reslock, reqlock or wrklock */
159 aio_req req; /* currently processed request */
160 void *dbuf;
161 DIR *dirp;
162} worker;
163
164static worker wrk_first = { &wrk_first, &wrk_first, 0 };
165
166static void worker_clear (worker *wrk)
167{
168 if (wrk->dirp)
169 {
170 closedir (wrk->dirp);
171 wrk->dirp = 0;
172 }
173
174 if (wrk->dbuf)
175 {
176 free (wrk->dbuf);
177 wrk->dbuf = 0;
178 }
179}
180
181static void worker_free (worker *wrk)
182{
183 wrk->next->prev = wrk->prev;
184 wrk->prev->next = wrk->next;
185
186 free (wrk);
187}
188
189static pthread_mutex_t reslock = AIO_MUTEX_INIT;
190static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
191static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
192
193/*
194 * a somewhat faster data structure might be nice, but
195 * with 8 priorities this actually needs <20 insns
196 * per shift, the most expensive operation.
197 */
198typedef struct {
199 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
200 int size;
201} reqq;
202
203static reqq req_queue;
204static reqq res_queue;
205
206int reqq_push (reqq *q, aio_req req)
207{
208 int pri = req->pri;
209 req->next = 0;
210
211 if (q->qe[pri])
212 {
213 q->qe[pri]->next = req;
214 q->qe[pri] = req;
215 }
216 else
217 q->qe[pri] = q->qs[pri] = req;
218
219 return q->size++;
220}
221
222aio_req reqq_shift (reqq *q)
223{
224 int pri;
225
226 if (!q->size)
227 return 0;
228
229 --q->size;
230
231 for (pri = NUM_PRI; pri--; )
232 {
233 aio_req req = q->qs[pri];
234
235 if (req)
236 {
237 if (!(q->qs[pri] = req->next))
238 q->qe[pri] = 0;
239
240 return req;
241 }
242 }
243
244 abort ();
245}
246
247static int poll_cb ();
248static void req_invoke (aio_req req);
249static void req_free (aio_req req); 343static void req_destroy (aio_req req);
250static void req_cancel (aio_req req); 344static void req_cancel (aio_req req);
251 345
346static void
347want_poll (void)
348{
349 /* write a dummy byte to the pipe so fh becomes ready */
350 s_epipe_signal (&respipe);
351}
352
353static void
354done_poll (void)
355{
356 /* read any signals sent by the worker threads */
357 s_epipe_drain (&respipe);
358}
359
252/* must be called at most once */ 360/* must be called at most once */
253static SV *req_sv (aio_req req, const char *klass) 361static SV *
362req_sv (aio_req req, HV *stash)
254{ 363{
255 if (!req->self) 364 if (!req->self)
256 { 365 {
257 req->self = (SV *)newHV (); 366 req->self = (SV *)newHV ();
258 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 367 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
259 } 368 }
260 369
261 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 370 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
262} 371}
263 372
264static aio_req SvAIO_REQ (SV *sv) 373static SV *
374newSVaio_wd (aio_wd wd)
375{
376 return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
377}
378
379static aio_req
380SvAIO_REQ (SV *sv)
265{ 381{
266 MAGIC *mg; 382 MAGIC *mg;
267 383
268 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 384 if (!SvROK (sv)
385 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
386 || (SvSTASH (SvRV (sv)) != aio_grp_stash
387 && SvSTASH (SvRV (sv)) != aio_req_stash
388 && !sv_derived_from (sv, "IO::AIO::REQ")))
269 croak ("object of class " AIO_REQ_KLASS " expected"); 389 croak ("object of class IO::AIO::REQ expected");
270 390
271 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 391 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
272 392
273 return mg ? (aio_req)mg->mg_ptr : 0; 393 return mg ? (aio_req)mg->mg_ptr : 0;
274} 394}
275 395
396static aio_wd
397SvAIO_WD (SV *sv)
398{
399 if (!SvROK (sv)
400 || SvTYPE (SvRV (sv)) != SVt_PVMG
401 || SvSTASH (SvRV (sv)) != aio_wd_stash)
402 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
403
404 return (aio_wd)(long)SvIVX (SvRV (sv));
405}
406
407static void
276static void aio_grp_feed (aio_req grp) 408aio_grp_feed (aio_req grp)
277{ 409{
278 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 410 if (grp->sv2 && SvOK (grp->sv2))
279 { 411 {
280 int old_len = grp->length;
281
282 if (grp->fh2 && SvOK (grp->fh2))
283 {
284 dSP; 412 dSP;
285 413
286 ENTER; 414 ENTER;
287 SAVETMPS; 415 SAVETMPS;
288 PUSHMARK (SP); 416 PUSHMARK (SP);
289 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 417 XPUSHs (req_sv (grp, aio_grp_stash));
290 PUTBACK; 418 PUTBACK;
291 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 419 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
292 SPAGAIN; 420 SPAGAIN;
293 FREETMPS; 421 FREETMPS;
294 LEAVE; 422 LEAVE;
295 }
296
297 /* stop if no progress has been made */
298 if (old_len == grp->length)
299 {
300 SvREFCNT_dec (grp->fh2);
301 grp->fh2 = 0;
302 break;
303 }
304 } 423 }
305} 424}
306 425
307static void aio_grp_dec (aio_req grp) 426static void
427req_submit (eio_req *req)
308{ 428{
309 --grp->length; 429 eio_submit (req);
310 430
311 /* call feeder, if applicable */ 431 if (expect_false (on_next_submit))
312 aio_grp_feed (grp);
313
314 /* finish, if done */
315 if (!grp->length && grp->fd)
316 { 432 {
317 req_invoke (grp); 433 dSP;
318 req_free (grp); 434 SV *cb = sv_2mortal (on_next_submit);
435
436 on_next_submit = 0;
437
438 PUSHMARK (SP);
439 PUTBACK;
440 call_sv (cb, G_DISCARD | G_EVAL);
319 } 441 }
320} 442}
321 443
322static void poll_wait () 444static int
445req_invoke (eio_req *req)
323{ 446{
324 fd_set rfd; 447 if (req->flags & FLAG_SV2_RO_OFF)
448 SvREADONLY_off (req->sv2);
325 449
326 while (nreqs) 450 if (!EIO_CANCELLED (req) && req->callback)
327 { 451 {
328 int size;
329#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
330 LOCK (reslock);
331#endif
332 size = res_queue.size;
333#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
334 UNLOCK (reslock);
335#endif
336
337 if (size)
338 return;
339
340 FD_ZERO(&rfd);
341 FD_SET(respipe [0], &rfd);
342
343 select (respipe [0] + 1, &rfd, 0, 0, 0);
344 }
345}
346
347static void req_invoke (aio_req req)
348{
349 dSP; 452 dSP;
350 453 static SV *sv_result_cache; /* caches the result integer SV */
351 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 454 SV *sv_result;
352 {
353 errno = req->errorno;
354 455
355 ENTER; 456 ENTER;
356 SAVETMPS; 457 SAVETMPS;
357 PUSHMARK (SP); 458 PUSHMARK (SP);
358 EXTEND (SP, 1); 459 EXTEND (SP, 1);
359 460
461 /* do not recreate the result IV from scratch each time */
462 if (expect_true (sv_result_cache))
463 {
464 sv_result = sv_result_cache; sv_result_cache = 0;
465 SvIV_set (sv_result, req->result);
466 SvIOK_only (sv_result);
467 }
468 else
469 {
470 sv_result = newSViv (req->result);
471 SvREADONLY_on (sv_result);
472 }
473
360 switch (req->type) 474 switch (req->type)
361 { 475 {
476 case EIO_WD_OPEN:
477 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
478 break;
479
362 case REQ_READDIR: 480 case EIO_READDIR:
363 { 481 {
364 SV *rv = &PL_sv_undef; 482 SV *rv = &PL_sv_undef;
365 483
366 if (req->result >= 0) 484 if (req->result >= 0)
367 { 485 {
368 int i; 486 int i;
369 char *buf = req->data2ptr; 487 char *names = (char *)req->ptr2;
488 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
370 AV *av = newAV (); 489 AV *av = newAV ();
371 490
372 av_extend (av, req->result - 1); 491 av_extend (av, req->result - 1);
373 492
374 for (i = 0; i < req->result; ++i) 493 for (i = 0; i < req->result; ++i)
375 { 494 {
376 SV *sv = newSVpv (buf, 0); 495 if (req->int1 & EIO_READDIR_DENTS)
496 {
497 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
377 498
499 if (req->int1 & EIO_READDIR_CUSTOM2)
500 {
501 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
502 AV *avent = newAV ();
503
504 av_extend (avent, 2);
505
506 if (!sv_type [ent->type])
507 {
508 sv_type [ent->type] = newSViv (ent->type);
509 SvREADONLY_on (sv_type [ent->type]);
510 }
511
512 av_store (avent, 0, namesv);
513 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
514 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
515
516 av_store (av, i, newRV_noinc ((SV *)avent));
517 }
518 else
378 av_store (av, i, sv); 519 av_store (av, i, namesv);
520
521 ++ent;
522 }
523 else
524 {
525 SV *name = newSVpv (names, 0);
526 av_store (av, i, name);
379 buf += SvCUR (sv) + 1; 527 names += SvCUR (name) + 1;
528 }
380 } 529 }
381 530
382 rv = sv_2mortal (newRV_noinc ((SV *)av)); 531 rv = sv_2mortal (newRV_noinc ((SV *)av));
383 } 532 }
384 533
385 PUSHs (rv); 534 PUSHs (rv);
535
536 if (req->int1 & EIO_READDIR_CUSTOM1)
537 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
386 } 538 }
387 break; 539 break;
388 540
389 case REQ_OPEN: 541 case EIO_OPEN:
390 { 542 {
391 /* convert fd to fh */ 543 /* convert fd to fh */
392 SV *fh; 544 SV *fh = &PL_sv_undef;
393 545
394 PUSHs (sv_2mortal (newSViv (req->result))); 546 if (req->result >= 0)
395 PUTBACK; 547 {
396 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 548 GV *gv = (GV *)sv_newmortal ();
397 SPAGAIN; 549 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
550 char sym [64];
551 int symlen;
552
553 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
554 gv_init (gv, aio_stash, sym, symlen, 0);
398 555
399 fh = SvREFCNT_inc (POPs); 556 symlen = snprintf (
557 sym,
558 sizeof (sym),
559 "%s&=%d",
560 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
561 (int)req->result
562 );
400 563
564 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
565 fh = (SV *)gv;
566 }
567
401 PUSHMARK (SP); 568 PUSHs (fh);
402 XPUSHs (sv_2mortal (fh));
403 } 569 }
404 break; 570 break;
405 571
572 case EIO_STATVFS:
573 case EIO_FSTATVFS:
574 {
575 SV *rv = &PL_sv_undef;
576
577#ifndef _WIN32
578 if (req->result >= 0)
579 {
580 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
581 HV *hv = newHV ();
582
583 rv = sv_2mortal (newRV_noinc ((SV *)hv));
584
585 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
586 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
587 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
588 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
589 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
590 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
591 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
592 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
593 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
594 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
595 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
596 }
597#endif
598
599 PUSHs (rv);
600 }
601
602 break;
603
406 case REQ_GROUP: 604 case EIO_GROUP:
407 req->fd = 2; /* mark group as finished */ 605 req->int1 = 2; /* mark group as finished */
408 606
409 if (req->data) 607 if (req->sv1)
410 { 608 {
411 int i; 609 int i;
412 AV *av = (AV *)req->data; 610 AV *av = (AV *)req->sv1;
413 611
414 EXTEND (SP, AvFILL (av) + 1); 612 EXTEND (SP, AvFILL (av) + 1);
415 for (i = 0; i <= AvFILL (av); ++i) 613 for (i = 0; i <= AvFILL (av); ++i)
416 PUSHs (*av_fetch (av, i, 0)); 614 PUSHs (*av_fetch (av, i, 0));
417 } 615 }
418 break; 616 break;
419 617
420 case REQ_NOP: 618 case EIO_NOP:
421 case REQ_BUSY: 619 case EIO_BUSY:
422 break; 620 break;
423 621
622 case EIO_READLINK:
623 case EIO_REALPATH:
624 if (req->result > 0)
625 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
626 break;
627
628 case EIO_STAT:
629 case EIO_LSTAT:
630 case EIO_FSTAT:
631 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
632
633 if (!(PL_laststatval = req->result))
634 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
635 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
636
637 PUSHs (sv_result);
638 break;
639
640 case EIO_READ:
641 {
642 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
643 *SvEND (req->sv2) = 0;
644 SvPOK_only (req->sv2);
645 SvSETMAGIC (req->sv2);
646 PUSHs (sv_result);
647 }
648 break;
649
650 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
651 if (req->result > 0)
652 SvIV_set (sv_result, 0);
653 /* FALLTHROUGH */
654
424 default: 655 default:
425 PUSHs (sv_2mortal (newSViv (req->result))); 656 PUSHs (sv_result);
426 break; 657 break;
427 } 658 }
428 659
660 errno = req->errorno;
429 661
430 PUTBACK; 662 PUTBACK;
431 call_sv (req->callback, G_VOID | G_EVAL); 663 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
432 SPAGAIN; 664 SPAGAIN;
665
666 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
667 SvREFCNT_dec (sv_result);
668 else
669 sv_result_cache = sv_result;
433 670
434 FREETMPS; 671 FREETMPS;
435 LEAVE; 672 LEAVE;
673
674 PUTBACK;
436 } 675 }
437 676
438 if (req->grp) 677 return !!SvTRUE (ERRSV);
439 {
440 aio_req grp = req->grp;
441
442 /* unlink request */
443 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
444 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
445
446 if (grp->grp_first == req)
447 grp->grp_first = req->grp_next;
448
449 aio_grp_dec (grp);
450 }
451
452 if (SvTRUE (ERRSV))
453 {
454 req_free (req);
455 croak (0);
456 }
457} 678}
458 679
459static void req_free (aio_req req) 680static void
681req_destroy (aio_req req)
460{ 682{
461 if (req->self) 683 if (req->self)
462 { 684 {
463 sv_unmagic (req->self, PERL_MAGIC_ext); 685 sv_unmagic (req->self, PERL_MAGIC_ext);
464 SvREFCNT_dec (req->self); 686 SvREFCNT_dec (req->self);
465 } 687 }
466 688
467 SvREFCNT_dec (req->data);
468 SvREFCNT_dec (req->fh); 689 SvREFCNT_dec (req->sv1);
469 SvREFCNT_dec (req->fh2); 690 SvREFCNT_dec (req->sv2);
691 SvREFCNT_dec (req->sv3);
692 SvREFCNT_dec (req->sv4);
470 SvREFCNT_dec (req->callback); 693 SvREFCNT_dec (req->callback);
471 Safefree (req->statdata);
472 694
473 if (req->type == REQ_READDIR)
474 free (req->data2ptr);
475
476 Safefree (req); 695 free (req);
477} 696}
478 697
698static void
479static void req_cancel_subs (aio_req grp) 699req_cancel_subs (aio_req grp)
480{ 700{
481 aio_req sub;
482
483 if (grp->type != REQ_GROUP) 701 if (grp->type != EIO_GROUP)
484 return; 702 return;
485 703
486 SvREFCNT_dec (grp->fh2); 704 SvREFCNT_dec (grp->sv2);
487 grp->fh2 = 0; 705 grp->sv2 = 0;
488 706
489 for (sub = grp->grp_first; sub; sub = sub->grp_next) 707 eio_grp_cancel (grp);
490 req_cancel (sub);
491} 708}
492 709
493static void req_cancel (aio_req req) 710static void ecb_cold
711create_respipe (void)
494{ 712{
495 req->flags |= FLAG_CANCELLED; 713 if (s_epipe_renew (&respipe))
496 714 croak ("IO::AIO: unable to initialize result pipe");
497 req_cancel_subs (req);
498} 715}
499 716
500static int poll_cb () 717static void
718poll_wait (void)
501{ 719{
502 dSP; 720 while (eio_nreqs ())
503 int count = 0; 721 {
504 int do_croak = 0; 722 int size;
505 aio_req req;
506 723
724 X_LOCK (reslock);
725 size = res_queue.size;
726 X_UNLOCK (reslock);
727
728 if (size)
729 return;
730
731 etp_maybe_start_thread ();
732
733 s_epipe_wait (&respipe);
734 }
735}
736
737static int
738poll_cb (void)
739{
507 for (;;) 740 for (;;)
508 { 741 {
509 LOCK (reslock); 742 int res = eio_poll ();
510 req = reqq_shift (&res_queue);
511 743
512 if (req) 744 if (res > 0)
745 croak (0);
746
747 if (!max_outstanding || max_outstanding > eio_nreqs ())
748 return res;
749
750 poll_wait ();
751 }
752}
753
754static void ecb_cold
755reinit (void)
756{
757 create_respipe ();
758
759 if (eio_init (want_poll, done_poll) < 0)
760 croak ("IO::AIO: unable to initialise eio library");
761}
762
763/*****************************************************************************/
764
765#if !_POSIX_MAPPED_FILES
766# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
767# define munmap(addr,length) (errno = ENOSYS, -1)
768#endif
769
770#if !_POSIX_MEMORY_PROTECTION
771# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
772# define PROT_NONE 0
773# define PROT_WRITE 0
774# define MAP_PRIVATE 0
775# define MAP_SHARED 0
776# define MAP_FIXED 0
777#endif
778
779#define MMAP_MAGIC PERL_MAGIC_ext
780
781static int ecb_cold
782mmap_free (pTHX_ SV *sv, MAGIC *mg)
783{
784 int old_errno = errno;
785 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
786 errno = old_errno;
787
788 mg->mg_obj = 0; /* just in case */
789
790 SvREADONLY_off (sv);
791
792 if (SvPVX (sv) != mg->mg_ptr)
793 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
794
795 SvCUR_set (sv, 0);
796 SvPVX (sv) = 0;
797 SvOK_off (sv);
798
799 return 0;
800}
801
802static MGVTBL mmap_vtbl = {
803 0, 0, 0, 0, mmap_free
804};
805
806/*****************************************************************************/
807
808static SV *
809get_cb (SV *cb_sv)
810{
811 SvGETMAGIC (cb_sv);
812 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
813}
814
815static aio_req ecb_noinline
816dreq (SV *callback)
817{
818 SV *cb_cv;
819 aio_req req;
820 int req_pri = next_pri;
821 next_pri = EIO_PRI_DEFAULT;
822
823 cb_cv = get_cb (callback);
824
825 req = calloc (sizeof (*req), 1);
826 if (!req)
827 croak ("out of memory during eio_req allocation");
828
829 req->callback = SvREFCNT_inc (cb_cv);
830 req->pri = req_pri;
831
832 return req;
833}
834
835#define dREQ \
836 aio_req req = dreq (callback); \
837
838#define REQ_SEND \
839 PUTBACK; \
840 req_submit (req); \
841 SPAGAIN; \
842 \
843 if (GIMME_V != G_VOID) \
844 XPUSHs (req_sv (req, aio_req_stash));
845
846ecb_inline void
847req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
848{
849 if (expect_false (SvROK (path)))
850 {
851 SV *rv = SvRV (path);
852 SV *wdob;
853
854 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
513 { 855 {
514 if (!res_queue.size) 856 path = AvARRAY (rv)[1];
857 wdob = AvARRAY (rv)[0];
858
859 if (SvOK (wdob))
515 { 860 {
516 /* read any signals sent by the worker threads */ 861 *wd = SvAIO_WD (wdob);
517 char buf [32]; 862 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
518 while (read (respipe [0], buf, 32) == 32)
519 ;
520 } 863 }
864 else
865 *wd = EIO_INVALID_WD;
521 } 866 }
522 867 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
523 UNLOCK (reslock);
524
525 if (!req)
526 break;
527
528 --nreqs;
529
530 if (req->type == REQ_QUIT)
531 started--;
532 else if (req->type == REQ_GROUP && req->length)
533 { 868 {
534 req->fd = 1; /* mark request as delayed */ 869 *wd = (aio_wd)(long)SvIVX (rv);
535 continue; 870 *wdsv = SvREFCNT_inc_NN (rv);
871 *ptr = ".";
872 return; /* path set to "." */
536 } 873 }
537 else 874 else
538 { 875 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
539 if (req->type == REQ_READ)
540 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
541
542 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
543 SvREADONLY_off (req->data);
544
545 if (req->statdata)
546 {
547 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
548 PL_laststatval = req->result;
549 PL_statcache = *(req->statdata);
550 }
551
552 req_invoke (req);
553
554 count++;
555 }
556
557 req_free (req);
558 } 876 }
559 877
560 return count; 878 *pathsv = newSVsv (path);
879 *ptr = SvPVbyte_nolen (*pathsv);
561} 880}
562 881
563static void *aio_proc(void *arg); 882static void ecb_noinline
564 883req_set_path1 (aio_req req, SV *path)
565static void start_thread (void)
566{ 884{
567 sigset_t fullsigset, oldsigset; 885 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
568 pthread_attr_t attr; 886}
569 887
570 worker *wrk = calloc (1, sizeof (worker)); 888static void ecb_noinline
889req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
890{
891 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
571 892
572 if (!wrk) 893 switch (SvTYPE (rv))
573 croak ("unable to allocate worker thread data");
574
575 pthread_attr_init (&attr);
576 pthread_attr_setstacksize (&attr, STACKSIZE);
577 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
578
579 sigfillset (&fullsigset);
580
581 LOCK (wrklock);
582 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
583
584 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
585 { 894 {
586 wrk->prev = &wrk_first; 895 case SVt_PVIO:
587 wrk->next = wrk_first.next; 896 case SVt_PVLV:
588 wrk_first.next->prev = wrk; 897 case SVt_PVGV:
589 wrk_first.next = wrk; 898 req->type = type_fh;
590 started++; 899 req->sv1 = newSVsv (fh_or_path);
900 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
901 break;
902
903 default:
904 req->type = type_path;
905 req_set_path1 (req, fh_or_path);
906 break;
591 } 907 }
592 else
593 free (wrk);
594
595 sigprocmask (SIG_SETMASK, &oldsigset, 0);
596 UNLOCK (wrklock);
597} 908}
598 909
599static void req_send (aio_req req) 910XS(boot_IO__AIO) ecb_cold;
600{
601 while (started < wanted && nreqs >= started)
602 start_thread ();
603 911
604 ++nreqs; 912MODULE = IO::AIO PACKAGE = IO::AIO
605 913
606 LOCK (reqlock); 914PROTOTYPES: ENABLE
607 reqq_push (&req_queue, req);
608 pthread_cond_signal (&reqwait);
609 UNLOCK (reqlock);
610}
611 915
612static void end_thread (void) 916BOOT:
613{ 917{
614 aio_req req; 918 static const struct {
919 const char *name;
920 IV iv;
921 } *civ, const_iv[] = {
922# define const_niv(name, value) { # name, (IV) value },
923# define const_iv(name) { # name, (IV) name },
924# define const_eio(name) { # name, (IV) EIO_ ## name },
925 const_iv (EXDEV)
926 const_iv (ENOSYS)
927 const_iv (O_RDONLY)
928 const_iv (O_WRONLY)
929 const_iv (O_RDWR)
930 const_iv (O_CREAT)
931 const_iv (O_TRUNC)
932 const_iv (O_EXCL)
933 const_iv (O_APPEND)
615 934
616 Newz (0, req, 1, aio_cb); 935 const_iv (O_ASYNC)
936 const_iv (O_DIRECT)
937 const_iv (O_NOATIME)
617 938
618 req->type = REQ_QUIT; 939 const_iv (O_CLOEXEC)
619 req->pri = PRI_MAX + PRI_BIAS; 940 const_iv (O_NOCTTY)
941 const_iv (O_NOFOLLOW)
942 const_iv (O_NONBLOCK)
943 const_iv (O_EXEC)
944 const_iv (O_SEARCH)
945 const_iv (O_DIRECTORY)
946 const_iv (O_DSYNC)
947 const_iv (O_RSYNC)
948 const_iv (O_SYNC)
949 const_iv (O_TTY_INIT)
620 950
621 req_send (req); 951 const_iv (S_IFIFO)
622} 952 const_iv (S_IFCHR)
953 const_iv (S_IFBLK)
954 const_iv (S_IFLNK)
955 const_iv (S_IFREG)
956 const_iv (S_IFDIR)
957 const_iv (S_IFWHT)
958 const_iv (S_IFSOCK)
959 const_iv (S_IFMT)
623 960
624static void min_parallel (int nthreads) 961 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
625{ 962 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
626 if (wanted < nthreads) 963 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
627 wanted = nthreads; 964 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
628} 965 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
966 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
629 967
630static void max_parallel (int nthreads) 968 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
631{ 969 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
632 int cur = started; 970 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
971 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
972 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
633 973
634 if (wanted > nthreads) 974 const_iv (ST_RDONLY)
635 wanted = nthreads; 975 const_iv (ST_NOSUID)
976 const_iv (ST_NODEV)
977 const_iv (ST_NOEXEC)
978 const_iv (ST_SYNCHRONOUS)
979 const_iv (ST_MANDLOCK)
980 const_iv (ST_WRITE)
981 const_iv (ST_APPEND)
982 const_iv (ST_IMMUTABLE)
983 const_iv (ST_NOATIME)
984 const_iv (ST_NODIRATIME)
985 const_iv (ST_RELATIME)
636 986
637 while (cur > wanted) 987 const_iv (PROT_NONE)
638 { 988 const_iv (PROT_EXEC)
639 end_thread (); 989 const_iv (PROT_READ)
640 cur--; 990 const_iv (PROT_WRITE)
641 }
642 991
643 while (started > wanted) 992 /*const_iv (MAP_FIXED)*/
644 { 993 const_iv (MAP_PRIVATE)
645 poll_wait (); 994 const_iv (MAP_SHARED)
646 poll_cb (); 995 const_iv (MAP_ANONYMOUS)
647 }
648}
649 996
650static void create_pipe () 997 /* linuxish */
651{ 998 const_iv (MAP_HUGETLB)
652 if (pipe (respipe)) 999 const_iv (MAP_LOCKED)
653 croak ("unable to initialize result pipe"); 1000 const_iv (MAP_NORESERVE)
1001 const_iv (MAP_POPULATE)
1002 const_iv (MAP_NONBLOCK)
654 1003
655 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)) 1004 const_eio (MCL_FUTURE)
656 croak ("cannot set result pipe to nonblocking mode"); 1005 const_eio (MCL_CURRENT)
657 1006
658 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK)) 1007 const_eio (MS_ASYNC)
659 croak ("cannot set result pipe to nonblocking mode"); 1008 const_eio (MS_INVALIDATE)
660} 1009 const_eio (MS_SYNC)
661 1010
662/*****************************************************************************/ 1011 const_eio (MT_MODIFY)
663/* work around various missing functions */
664 1012
665#if !HAVE_PREADWRITE 1013 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
666# define pread aio_pread 1014 const_eio (SYNC_FILE_RANGE_WRITE)
667# define pwrite aio_pwrite 1015 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
668 1016
669/* 1017 const_eio (FALLOC_FL_KEEP_SIZE)
670 * make our pread/pwrite safe against themselves, but not against
671 * normal read/write by using a mutex. slows down execution a lot,
672 * but that's your problem, not mine.
673 */
674static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
675 1018
676static ssize_t pread (int fd, void *buf, size_t count, off_t offset) 1019 const_eio (READDIR_DENTS)
677{ 1020 const_eio (READDIR_DIRS_FIRST)
678 ssize_t res; 1021 const_eio (READDIR_STAT_ORDER)
679 off_t ooffset; 1022 const_eio (READDIR_FOUND_UNKNOWN)
680 1023
681 LOCK (preadwritelock); 1024 const_eio (DT_UNKNOWN)
682 ooffset = lseek (fd, 0, SEEK_CUR); 1025 const_eio (DT_FIFO)
683 lseek (fd, offset, SEEK_SET); 1026 const_eio (DT_CHR)
684 res = read (fd, buf, count); 1027 const_eio (DT_DIR)
685 lseek (fd, ooffset, SEEK_SET); 1028 const_eio (DT_BLK)
686 UNLOCK (preadwritelock); 1029 const_eio (DT_REG)
687 1030 const_eio (DT_LNK)
688 return res; 1031 const_eio (DT_SOCK)
689} 1032 const_eio (DT_WHT)
690
691static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
692{
693 ssize_t res;
694 off_t ooffset;
695
696 LOCK (preadwritelock);
697 ooffset = lseek (fd, 0, SEEK_CUR);
698 lseek (fd, offset, SEEK_SET);
699 res = write (fd, buf, count);
700 lseek (fd, offset, SEEK_SET);
701 UNLOCK (preadwritelock);
702
703 return res;
704}
705#endif
706
707#if !HAVE_FDATASYNC
708# define fdatasync fsync
709#endif
710
711#if !HAVE_READAHEAD
712# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
713
714static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
715{
716 dBUF;
717
718 while (count > 0)
719 {
720 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
721
722 pread (fd, aio_buf, len, offset);
723 offset += len;
724 count -= len;
725 }
726
727 errno = 0;
728}
729
730#endif
731
732#if !HAVE_READDIR_R
733# define readdir_r aio_readdir_r
734
735static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
736
737static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
738{
739 struct dirent *e;
740 int errorno;
741
742 LOCK (readdirlock);
743
744 e = readdir (dirp);
745 errorno = errno;
746
747 if (e)
748 {
749 *res = ent;
750 strcpy (ent->d_name, e->d_name);
751 }
752 else
753 *res = 0;
754
755 UNLOCK (readdirlock);
756
757 errno = errorno;
758 return e ? 0 : -1;
759}
760#endif
761
762/* sendfile always needs emulation */
763static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
764{
765 ssize_t res;
766
767 if (!count)
768 return 0;
769
770#if HAVE_SENDFILE
771# if __linux
772 res = sendfile (ofd, ifd, &offset, count);
773
774# elif __freebsd
775 /*
776 * Of course, the freebsd sendfile is a dire hack with no thoughts
777 * wasted on making it similar to other I/O functions.
778 */
779 {
780 off_t sbytes;
781 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
782
783 if (res < 0 && sbytes)
784 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
785 res = sbytes;
786 } 1033 };
787 1034
788# elif __hpux 1035 aio_stash = gv_stashpv ("IO::AIO" , 1);
789 res = sendfile (ofd, ifd, offset, count, 0, 0); 1036 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1037 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1038 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
790 1039
791# elif __solaris 1040 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
792 { 1041 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
793 struct sendfilevec vec;
794 size_t sbytes;
795 1042
796 vec.sfv_fd = ifd; 1043 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
797 vec.sfv_flag = 0;
798 vec.sfv_off = offset;
799 vec.sfv_len = count;
800 1044
801 res = sendfilev (ofd, &vec, 1, &sbytes); 1045 reinit ();
1046}
802 1047
803 if (res < 0 && sbytes) 1048void
1049reinit ()
1050 PROTOTYPE:
1051
1052void
1053max_poll_reqs (unsigned int nreqs)
1054 PROTOTYPE: $
1055 CODE:
1056 eio_set_max_poll_reqs (nreqs);
1057
1058void
1059max_poll_time (double nseconds)
1060 PROTOTYPE: $
1061 CODE:
1062 eio_set_max_poll_time (nseconds);
1063
1064void
1065min_parallel (unsigned int nthreads)
1066 PROTOTYPE: $
1067 CODE:
1068 eio_set_min_parallel (nthreads);
1069
1070void
1071max_parallel (unsigned int nthreads)
1072 PROTOTYPE: $
1073 CODE:
1074 eio_set_max_parallel (nthreads);
1075
1076void
1077max_idle (unsigned int nthreads)
1078 PROTOTYPE: $
1079 CODE:
1080 eio_set_max_idle (nthreads);
1081
1082void
1083idle_timeout (unsigned int seconds)
1084 PROTOTYPE: $
1085 CODE:
1086 eio_set_idle_timeout (seconds);
1087
1088void
1089max_outstanding (unsigned int maxreqs)
1090 PROTOTYPE: $
1091 CODE:
1092 max_outstanding = maxreqs;
1093
1094void
1095aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
1096 PPCODE:
1097{
1098 dREQ;
1099
1100 req->type = EIO_WD_OPEN;
1101 req_set_path1 (req, pathname);
1102
1103 REQ_SEND;
1104}
1105
1106void
1107aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1108 PPCODE:
1109{
1110 dREQ;
1111
1112 req->type = EIO_OPEN;
1113 req_set_path1 (req, pathname);
1114 req->int1 = flags;
1115 req->int2 = mode;
1116
1117 REQ_SEND;
1118}
1119
1120void
1121aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1122 ALIAS:
1123 aio_fsync = EIO_FSYNC
1124 aio_fdatasync = EIO_FDATASYNC
1125 aio_syncfs = EIO_SYNCFS
1126 PPCODE:
1127{
1128 int fd = s_fileno_croak (fh, 0);
1129 dREQ;
1130
1131 req->type = ix;
1132 req->sv1 = newSVsv (fh);
1133 req->int1 = fd;
1134
1135 REQ_SEND (req);
1136}
1137
1138void
1139aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1140 PPCODE:
1141{
1142 int fd = s_fileno_croak (fh, 0);
1143 dREQ;
1144
1145 req->type = EIO_SYNC_FILE_RANGE;
1146 req->sv1 = newSVsv (fh);
1147 req->int1 = fd;
1148 req->offs = offset;
804 res = sbytes; 1149 req->size = nbytes;
805 } 1150 req->int2 = flags;
806 1151
807# endif 1152 REQ_SEND (req);
1153}
1154
1155void
1156aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1157 PPCODE:
1158{
1159 int fd = s_fileno_croak (fh, 0);
1160 dREQ;
1161
1162 req->type = EIO_FALLOCATE;
1163 req->sv1 = newSVsv (fh);
1164 req->int1 = fd;
1165 req->int2 = mode;
1166 req->offs = offset;
1167 req->size = len;
1168
1169 REQ_SEND (req);
1170}
1171
1172void
1173aio_close (SV *fh, SV *callback=&PL_sv_undef)
1174 PPCODE:
1175{
1176 static int close_fd = -1; /* dummy fd to close fds via dup2 */
1177 int fd = s_fileno_croak (fh, 0);
1178 dREQ;
1179
1180 if (expect_false (close_fd < 0))
1181 {
1182 int pipefd [2];
1183
1184 if (
1185#ifdef _WIN32
1186 _pipe (pipefd, 1, _O_BINARY) < 0
808#else 1187#else
809 res = -1; 1188 pipe (pipefd) < 0
810 errno = ENOSYS; 1189 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
811#endif 1190#endif
812 1191 || close (pipefd [1]) < 0
813 if (res < 0
814 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
815#if __solaris
816 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
817#endif
818 )
819 )
820 {
821 /* emulate sendfile. this is a major pain in the ass */
822 dBUF;
823
824 res = 0;
825
826 while (count)
827 {
828 ssize_t cnt;
829
830 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
831
832 if (cnt <= 0)
833 { 1192 )
834 if (cnt && !res) res = -1; 1193 abort (); /*D*/
835 break;
836 }
837 1194
838 cnt = write (ofd, aio_buf, cnt); 1195 close_fd = pipefd [0];
839
840 if (cnt <= 0)
841 {
842 if (cnt && !res) res = -1;
843 break;
844 }
845
846 offset += cnt;
847 res += cnt;
848 count -= cnt;
849 }
850 }
851
852 return res;
853}
854
855/* read a full directory */
856static void scandir_ (aio_req req, worker *self)
857{
858 DIR *dirp;
859 union
860 {
861 struct dirent d;
862 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
863 } *u;
864 struct dirent *entp;
865 char *name, *names;
866 int memlen = 4096;
867 int memofs = 0;
868 int res = 0;
869 int errorno;
870
871 LOCK (wrklock);
872 self->dirp = dirp = opendir (req->dataptr);
873 self->dbuf = u = malloc (sizeof (*u));
874 UNLOCK (wrklock);
875
876 req->data2ptr = names = malloc (memlen);
877
878 if (dirp && u && names)
879 for (;;)
880 {
881 errno = 0;
882 readdir_r (dirp, &u->d, &entp);
883
884 if (!entp)
885 break;
886
887 name = entp->d_name;
888
889 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
890 {
891 int len = strlen (name) + 1;
892
893 res++;
894
895 while (memofs + len > memlen)
896 {
897 memlen *= 2;
898 LOCK (wrklock);
899 req->data2ptr = names = realloc (names, memlen);
900 UNLOCK (wrklock);
901
902 if (!names)
903 break;
904 }
905
906 memcpy (names + memofs, name, len);
907 memofs += len;
908 } 1196 }
909 }
910 1197
911 if (errno)
912 res = -1;
913
914 req->result = res;
915}
916
917/*****************************************************************************/
918
919static void *aio_proc (void *thr_arg)
920{
921 aio_req req;
922 int type;
923 worker *self = (worker *)thr_arg;
924
925 do
926 {
927 LOCK (reqlock);
928
929 for (;;)
930 {
931 self->req = req = reqq_shift (&req_queue);
932
933 if (req)
934 break;
935
936 pthread_cond_wait (&reqwait, &reqlock);
937 }
938
939 UNLOCK (reqlock);
940
941 errno = 0; /* strictly unnecessary */
942 type = req->type; /* remember type for QUIT check */
943
944 if (!(req->flags & FLAG_CANCELLED))
945 switch (type)
946 {
947 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
948 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
949
950 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
951 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
952
953 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
954 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
955 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
956
957 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
958 case REQ_CLOSE: req->result = close (req->fd); break;
959 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
960 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
961 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
962 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
963 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
964
965 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
966 case REQ_FSYNC: req->result = fsync (req->fd); break;
967 case REQ_READDIR: scandir_ (req, self); break;
968
969 case REQ_BUSY:
970 {
971 struct timeval tv;
972
973 tv.tv_sec = req->fd;
974 tv.tv_usec = req->fd2;
975
976 req->result = select (0, 0, 0, 0, &tv);
977 }
978
979 case REQ_GROUP:
980 case REQ_NOP:
981 case REQ_QUIT:
982 break;
983
984 default:
985 req->result = ENOSYS;
986 break;
987 }
988
989 req->errorno = errno;
990
991 LOCK (reslock);
992
993 if (!reqq_push (&res_queue, req))
994 /* write a dummy byte to the pipe so fh becomes ready */
995 write (respipe [1], &respipe, 1);
996
997 self->req = 0;
998 worker_clear (self);
999
1000 UNLOCK (reslock);
1001 }
1002 while (type != REQ_QUIT);
1003
1004 LOCK (wrklock);
1005 worker_free (self);
1006 UNLOCK (wrklock);
1007
1008 return 0;
1009}
1010
1011/*****************************************************************************/
1012
1013static void atfork_prepare (void)
1014{
1015 LOCK (wrklock);
1016 LOCK (reqlock);
1017 LOCK (reslock);
1018#if !HAVE_PREADWRITE
1019 LOCK (preadwritelock);
1020#endif
1021#if !HAVE_READDIR_R
1022 LOCK (readdirlock);
1023#endif
1024}
1025
1026static void atfork_parent (void)
1027{
1028#if !HAVE_READDIR_R
1029 UNLOCK (readdirlock);
1030#endif
1031#if !HAVE_PREADWRITE
1032 UNLOCK (preadwritelock);
1033#endif
1034 UNLOCK (reslock);
1035 UNLOCK (reqlock);
1036 UNLOCK (wrklock);
1037}
1038
1039static void atfork_child (void)
1040{
1041 aio_req prv;
1042
1043 while (prv = reqq_shift (&req_queue))
1044 req_free (prv);
1045
1046 while (prv = reqq_shift (&res_queue))
1047 req_free (prv);
1048
1049 while (wrk_first.next != &wrk_first)
1050 {
1051 worker *wrk = wrk_first.next;
1052
1053 if (wrk->req)
1054 req_free (wrk->req);
1055
1056 worker_clear (wrk);
1057 worker_free (wrk);
1058 }
1059
1060 started = 0;
1061 nreqs = 0;
1062
1063 close (respipe [0]);
1064 close (respipe [1]);
1065 create_pipe ();
1066
1067 atfork_parent ();
1068}
1069
1070#define dREQ \
1071 aio_req req; \
1072 int req_pri = next_pri; \
1073 next_pri = DEFAULT_PRI + PRI_BIAS; \
1074 \
1075 if (SvOK (callback) && !SvROK (callback)) \
1076 croak ("callback must be undef or of reference type"); \
1077 \
1078 Newz (0, req, 1, aio_cb); \
1079 if (!req) \
1080 croak ("out of memory during aio_req allocation"); \
1081 \
1082 req->callback = newSVsv (callback); \
1083 req->pri = req_pri
1084
1085#define REQ_SEND \
1086 req_send (req); \
1087 \
1088 if (GIMME_V != G_VOID) \
1089 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1090
1091MODULE = IO::AIO PACKAGE = IO::AIO
1092
1093PROTOTYPES: ENABLE
1094
1095BOOT:
1096{
1097 HV *stash = gv_stashpv ("IO::AIO", 1);
1098 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1099 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1100 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1101
1102 create_pipe ();
1103 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1104}
1105
1106void
1107min_parallel (nthreads)
1108 int nthreads
1109 PROTOTYPE: $
1110
1111void
1112max_parallel (nthreads)
1113 int nthreads
1114 PROTOTYPE: $
1115
1116void
1117aio_open (pathname,flags,mode,callback=&PL_sv_undef)
1118 SV * pathname
1119 int flags
1120 int mode
1121 SV * callback
1122 PROTOTYPE: $$$;$
1123 PPCODE:
1124{
1125 dREQ;
1126
1127 req->type = REQ_OPEN; 1198 req->type = EIO_DUP2;
1199 req->int1 = close_fd;
1128 req->data = newSVsv (pathname); 1200 req->sv2 = newSVsv (fh);
1129 req->dataptr = SvPVbyte_nolen (req->data); 1201 req->int2 = fd;
1130 req->fd = flags;
1131 req->mode = mode;
1132 1202
1133 REQ_SEND; 1203 REQ_SEND (req);
1134} 1204}
1135 1205
1136void 1206void
1137aio_close (fh,callback=&PL_sv_undef) 1207aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1138 SV * fh
1139 SV * callback
1140 PROTOTYPE: $;$
1141 ALIAS: 1208 ALIAS:
1142 aio_close = REQ_CLOSE
1143 aio_fsync = REQ_FSYNC
1144 aio_fdatasync = REQ_FDATASYNC
1145 PPCODE:
1146{
1147 dREQ;
1148
1149 req->type = ix;
1150 req->fh = newSVsv (fh);
1151 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1152
1153 REQ_SEND (req);
1154}
1155
1156void
1157aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1158 SV * fh
1159 UV offset
1160 UV length
1161 SV * data
1162 UV dataoffset
1163 SV * callback
1164 ALIAS:
1165 aio_read = REQ_READ 1209 aio_read = EIO_READ
1166 aio_write = REQ_WRITE 1210 aio_write = EIO_WRITE
1167 PROTOTYPE: $$$$$;$
1168 PPCODE: 1211 PPCODE:
1169{ 1212{
1170 aio_req req;
1171 STRLEN svlen; 1213 STRLEN svlen;
1214 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1172 char *svptr = SvPVbyte (data, svlen); 1215 char *svptr = SvPVbyte (data, svlen);
1173 1216 UV len = SvUV (length);
1174 SvUPGRADE (data, SVt_PV);
1175 SvPOK_on (data);
1176 1217
1177 if (dataoffset < 0) 1218 if (dataoffset < 0)
1178 dataoffset += svlen; 1219 dataoffset += svlen;
1179 1220
1180 if (dataoffset < 0 || dataoffset > svlen) 1221 if (dataoffset < 0 || dataoffset > svlen)
1181 croak ("data offset outside of string"); 1222 croak ("dataoffset outside of data scalar");
1182 1223
1183 if (ix == REQ_WRITE) 1224 if (ix == EIO_WRITE)
1184 { 1225 {
1185 /* write: check length and adjust. */ 1226 /* write: check length and adjust. */
1186 if (length < 0 || length + dataoffset > svlen) 1227 if (!SvOK (length) || len + dataoffset > svlen)
1187 length = svlen - dataoffset; 1228 len = svlen - dataoffset;
1188 } 1229 }
1189 else 1230 else
1190 { 1231 {
1191 /* read: grow scalar as necessary */ 1232 /* read: check type and grow scalar as necessary */
1233 SvUPGRADE (data, SVt_PV);
1192 svptr = SvGROW (data, length + dataoffset); 1234 svptr = SvGROW (data, len + dataoffset + 1);
1193 } 1235 }
1194
1195 if (length < 0)
1196 croak ("length must not be negative");
1197 1236
1198 { 1237 {
1199 dREQ; 1238 dREQ;
1200 1239
1201 req->type = ix; 1240 req->type = ix;
1202 req->fh = newSVsv (fh); 1241 req->sv1 = newSVsv (fh);
1203 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1242 req->int1 = fd;
1204 : IoOFP (sv_2io (fh))); 1243 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1205 req->offset = offset; 1244 req->size = len;
1206 req->length = length;
1207 req->data = SvREFCNT_inc (data); 1245 req->sv2 = SvREFCNT_inc (data);
1208 req->dataptr = (char *)svptr + dataoffset; 1246 req->ptr2 = (char *)svptr + dataoffset;
1247 req->stroffset = dataoffset;
1209 1248
1210 if (!SvREADONLY (data)) 1249 if (!SvREADONLY (data))
1211 { 1250 {
1212 SvREADONLY_on (data); 1251 SvREADONLY_on (data);
1213 req->data2ptr = (void *)data; 1252 req->flags |= FLAG_SV2_RO_OFF;
1214 } 1253 }
1215 1254
1216 REQ_SEND; 1255 REQ_SEND;
1217 } 1256 }
1218} 1257}
1219 1258
1220void 1259void
1221aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1260aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1222 SV * out_fh 1261 ALIAS:
1223 SV * in_fh 1262 aio_readlink = EIO_READLINK
1224 UV in_offset 1263 aio_realpath = EIO_REALPATH
1225 UV length
1226 SV * callback
1227 PROTOTYPE: $$$$;$
1228 PPCODE: 1264 PPCODE:
1229{ 1265{
1266 dREQ;
1267
1268 req->type = ix;
1269 req_set_path1 (req, pathname);
1270
1271 REQ_SEND;
1272}
1273
1274void
1275aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1276 PPCODE:
1277{
1278 int ifd = s_fileno_croak (in_fh , 0);
1279 int ofd = s_fileno_croak (out_fh, 1);
1230 dREQ; 1280 dREQ;
1231 1281
1232 req->type = REQ_SENDFILE; 1282 req->type = EIO_SENDFILE;
1233 req->fh = newSVsv (out_fh); 1283 req->sv1 = newSVsv (out_fh);
1234 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1284 req->int1 = ofd;
1235 req->fh2 = newSVsv (in_fh); 1285 req->sv2 = newSVsv (in_fh);
1236 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1286 req->int2 = ifd;
1237 req->offset = in_offset; 1287 req->offs = in_offset;
1238 req->length = length; 1288 req->size = length;
1239 1289
1240 REQ_SEND; 1290 REQ_SEND;
1241} 1291}
1242 1292
1243void 1293void
1244aio_readahead (fh,offset,length,callback=&PL_sv_undef) 1294aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1245 SV * fh
1246 UV offset
1247 IV length
1248 SV * callback
1249 PROTOTYPE: $$$;$
1250 PPCODE: 1295 PPCODE:
1251{ 1296{
1297 int fd = s_fileno_croak (fh, 0);
1252 dREQ; 1298 dREQ;
1253 1299
1254 req->type = REQ_READAHEAD; 1300 req->type = EIO_READAHEAD;
1255 req->fh = newSVsv (fh); 1301 req->sv1 = newSVsv (fh);
1256 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1302 req->int1 = fd;
1257 req->offset = offset; 1303 req->offs = offset;
1258 req->length = length; 1304 req->size = length;
1259 1305
1260 REQ_SEND; 1306 REQ_SEND;
1261} 1307}
1262 1308
1263void 1309void
1264aio_stat (fh_or_path,callback=&PL_sv_undef) 1310aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1265 SV * fh_or_path
1266 SV * callback
1267 ALIAS: 1311 ALIAS:
1268 aio_stat = REQ_STAT 1312 aio_stat = EIO_STAT
1269 aio_lstat = REQ_LSTAT 1313 aio_lstat = EIO_LSTAT
1314 aio_statvfs = EIO_STATVFS
1270 PPCODE: 1315 PPCODE:
1271{ 1316{
1272 dREQ; 1317 dREQ;
1273 1318
1274 New (0, req->statdata, 1, Stat_t); 1319 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1275 if (!req->statdata)
1276 {
1277 req_free (req);
1278 croak ("out of memory during aio_req->statdata allocation");
1279 }
1280
1281 if (SvPOK (fh_or_path))
1282 {
1283 req->type = ix;
1284 req->data = newSVsv (fh_or_path);
1285 req->dataptr = SvPVbyte_nolen (req->data);
1286 }
1287 else
1288 {
1289 req->type = REQ_FSTAT;
1290 req->fh = newSVsv (fh_or_path);
1291 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1292 }
1293 1320
1294 REQ_SEND; 1321 REQ_SEND;
1295} 1322}
1296 1323
1324UV
1325major (UV dev)
1326 ALIAS:
1327 minor = 1
1328 CODE:
1329 RETVAL = ix ? major (dev) : minor (dev);
1330 OUTPUT:
1331 RETVAL
1332
1333UV
1334makedev (UV maj, UV min)
1335 CODE:
1336 RETVAL = makedev (maj, min);
1337 OUTPUT:
1338 RETVAL
1339
1297void 1340void
1341aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1342 PPCODE:
1343{
1344 dREQ;
1345
1346 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1347 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1348 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1349
1350 REQ_SEND;
1351}
1352
1353void
1354aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1355 PPCODE:
1356{
1357 dREQ;
1358
1359 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1360 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1361
1362 REQ_SEND;
1363}
1364
1365void
1366aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1367 PPCODE:
1368{
1369 dREQ;
1370
1371 req->int2 = mode;
1372 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1373
1374 REQ_SEND;
1375}
1376
1377void
1378aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1379 PPCODE:
1380{
1381 dREQ;
1382
1383 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1384 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1385 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1386
1387 REQ_SEND;
1388}
1389
1390void
1391aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1392 PPCODE:
1393{
1394 dREQ;
1395
1396 req->type = EIO_READDIR;
1397 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1398
1399 if (flags & EIO_READDIR_DENTS)
1400 req->int1 |= EIO_READDIR_CUSTOM2;
1401
1402 req_set_path1 (req, pathname);
1403
1404 REQ_SEND;
1405}
1406
1407void
1408aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1409 PPCODE:
1410{
1411 dREQ;
1412
1413 req->type = EIO_MKDIR;
1414 req->int2 = mode;
1415 req_set_path1 (req, pathname);
1416
1417 REQ_SEND;
1418}
1419
1420void
1298aio_unlink (pathname,callback=&PL_sv_undef) 1421aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1299 SV * pathname
1300 SV * callback
1301 ALIAS: 1422 ALIAS:
1302 aio_unlink = REQ_UNLINK 1423 aio_unlink = EIO_UNLINK
1303 aio_rmdir = REQ_RMDIR 1424 aio_rmdir = EIO_RMDIR
1304 aio_readdir = REQ_READDIR 1425 aio_readdir = EIO_READDIR
1305 PPCODE: 1426 PPCODE:
1306{ 1427{
1307 dREQ; 1428 dREQ;
1308 1429
1309 req->type = ix; 1430 req->type = ix;
1310 req->data = newSVsv (pathname); 1431 req_set_path1 (req, pathname);
1311 req->dataptr = SvPVbyte_nolen (req->data); 1432
1312
1313 REQ_SEND; 1433 REQ_SEND;
1314} 1434}
1315 1435
1316void 1436void
1317aio_link (oldpath,newpath,callback=&PL_sv_undef) 1437aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1318 SV * oldpath
1319 SV * newpath
1320 SV * callback
1321 ALIAS: 1438 ALIAS:
1322 aio_link = REQ_LINK 1439 aio_link = EIO_LINK
1323 aio_symlink = REQ_SYMLINK 1440 aio_symlink = EIO_SYMLINK
1324 aio_rename = REQ_RENAME 1441 aio_rename = EIO_RENAME
1325 PPCODE: 1442 PPCODE:
1326{ 1443{
1444 eio_wd wd2 = 0;
1327 dREQ; 1445 dREQ;
1328 1446
1329 req->type = ix; 1447 req->type = ix;
1330 req->fh = newSVsv (oldpath); 1448 req_set_path1 (req, oldpath);
1331 req->data2ptr = SvPVbyte_nolen (req->fh); 1449 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1332 req->data = newSVsv (newpath); 1450 req->int3 = (long)wd2;
1333 req->dataptr = SvPVbyte_nolen (req->data);
1334 1451
1335 REQ_SEND; 1452 REQ_SEND;
1336} 1453}
1337 1454
1338void 1455void
1339aio_busy (delay,callback=&PL_sv_undef) 1456aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1340 double delay
1341 SV * callback
1342 PPCODE: 1457 PPCODE:
1343{ 1458{
1344 dREQ; 1459 dREQ;
1345 1460
1346 req->type = REQ_BUSY; 1461 req->type = EIO_MKNOD;
1347 req->fd = delay < 0. ? 0 : delay; 1462 req->int2 = (mode_t)mode;
1348 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1463 req->offs = dev;
1349 1464 req_set_path1 (req, pathname);
1465
1350 REQ_SEND; 1466 REQ_SEND;
1351} 1467}
1352 1468
1353void 1469void
1354aio_group (callback=&PL_sv_undef) 1470aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1355 SV * callback 1471 ALIAS:
1356 PROTOTYPE: ;$ 1472 aio_mtouch = EIO_MTOUCH
1473 aio_msync = EIO_MSYNC
1357 PPCODE: 1474 PPCODE:
1358{ 1475{
1476 STRLEN svlen;
1477 char *svptr = SvPVbyte (data, svlen);
1478 UV len = SvUV (length);
1479
1480 if (offset < 0)
1481 offset += svlen;
1482
1483 if (offset < 0 || offset > svlen)
1484 croak ("offset outside of scalar");
1485
1486 if (!SvOK (length) || len + offset > svlen)
1487 len = svlen - offset;
1488
1489 {
1490 dREQ;
1491
1492 req->type = ix;
1493 req->sv2 = SvREFCNT_inc (data);
1494 req->ptr2 = (char *)svptr + offset;
1495 req->size = len;
1496 req->int1 = flags;
1497
1498 REQ_SEND;
1499 }
1500}
1501
1502void
1503aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1504 PPCODE:
1505{
1506 STRLEN svlen;
1507 char *svptr = SvPVbyte (data, svlen);
1508 UV len = SvUV (length);
1509
1510 if (offset < 0)
1511 offset += svlen;
1512
1513 if (offset < 0 || offset > svlen)
1514 croak ("offset outside of scalar");
1515
1516 if (!SvOK (length) || len + offset > svlen)
1517 len = svlen - offset;
1518
1519 {
1520 dREQ;
1521
1522 req->type = EIO_MLOCK;
1523 req->sv2 = SvREFCNT_inc (data);
1524 req->ptr2 = (char *)svptr + offset;
1525 req->size = len;
1526
1527 REQ_SEND;
1528 }
1529}
1530
1531void
1532aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1533 PPCODE:
1534{
1535 dREQ;
1536
1537 req->type = EIO_MLOCKALL;
1538 req->int1 = flags;
1539
1540 REQ_SEND;
1541}
1542
1543void
1544aio_busy (double delay, SV *callback=&PL_sv_undef)
1545 PPCODE:
1546{
1359 dREQ; 1547 dREQ;
1360 1548
1549 req->type = EIO_BUSY;
1550 req->nv1 = delay < 0. ? 0. : delay;
1551
1552 REQ_SEND;
1553}
1554
1555void
1556aio_group (SV *callback=&PL_sv_undef)
1557 PPCODE:
1558{
1559 dREQ;
1560
1361 req->type = REQ_GROUP; 1561 req->type = EIO_GROUP;
1562
1362 req_send (req); 1563 req_submit (req);
1363
1364 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1564 XPUSHs (req_sv (req, aio_grp_stash));
1365} 1565}
1366 1566
1367void 1567void
1368aio_nop (callback=&PL_sv_undef) 1568aio_nop (SV *callback=&PL_sv_undef)
1369 SV * callback 1569 ALIAS:
1570 aio_nop = EIO_NOP
1571 aio_sync = EIO_SYNC
1370 PPCODE: 1572 PPCODE:
1371{ 1573{
1372 dREQ; 1574 dREQ;
1373 1575
1374 req->type = REQ_NOP; 1576 req->type = ix;
1375 1577
1376 REQ_SEND; 1578 REQ_SEND;
1377} 1579}
1378 1580
1379void 1581int
1380aioreq_pri (int pri = DEFAULT_PRI) 1582aioreq_pri (int pri = 0)
1381 CODE: 1583 CODE:
1584 RETVAL = next_pri;
1585 if (items > 0)
1586 {
1382 if (pri < PRI_MIN) pri = PRI_MIN; 1587 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1383 if (pri > PRI_MAX) pri = PRI_MAX; 1588 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1384 next_pri = pri + PRI_BIAS; 1589 next_pri = pri;
1590 }
1591 OUTPUT:
1592 RETVAL
1385 1593
1386void 1594void
1387aioreq_nice (int nice = 0) 1595aioreq_nice (int nice = 0)
1388 CODE: 1596 CODE:
1389 nice = next_pri - nice; 1597 nice = next_pri - nice;
1390 if (nice < PRI_MIN) nice = PRI_MIN; 1598 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1391 if (nice > PRI_MAX) nice = PRI_MAX; 1599 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1392 next_pri = nice + PRI_BIAS; 1600 next_pri = nice;
1393 1601
1394void 1602void
1395flush () 1603flush ()
1396 PROTOTYPE:
1397 CODE: 1604 CODE:
1398 while (nreqs) 1605 while (eio_nreqs ())
1399 { 1606 {
1400 poll_wait (); 1607 poll_wait ();
1401 poll_cb (); 1608 poll_cb ();
1402 } 1609 }
1403 1610
1404void 1611int
1405poll() 1612poll ()
1406 PROTOTYPE:
1407 CODE: 1613 CODE:
1408 if (nreqs)
1409 {
1410 poll_wait (); 1614 poll_wait ();
1411 poll_cb (); 1615 RETVAL = poll_cb ();
1412 }
1413
1414int
1415poll_fileno()
1416 PROTOTYPE:
1417 CODE:
1418 RETVAL = respipe [0];
1419 OUTPUT: 1616 OUTPUT:
1420 RETVAL 1617 RETVAL
1421 1618
1422int 1619int
1620poll_fileno ()
1621 CODE:
1622 RETVAL = s_epipe_fd (&respipe);
1623 OUTPUT:
1624 RETVAL
1625
1626int
1423poll_cb(...) 1627poll_cb (...)
1424 PROTOTYPE: 1628 PROTOTYPE:
1425 CODE: 1629 CODE:
1426 RETVAL = poll_cb (); 1630 RETVAL = poll_cb ();
1427 OUTPUT: 1631 OUTPUT:
1428 RETVAL 1632 RETVAL
1429 1633
1430void 1634void
1431poll_wait() 1635poll_wait ()
1432 PROTOTYPE:
1433 CODE: 1636 CODE:
1434 if (nreqs)
1435 poll_wait (); 1637 poll_wait ();
1436 1638
1437int 1639int
1438nreqs() 1640nreqs ()
1439 PROTOTYPE:
1440 CODE: 1641 CODE:
1441 RETVAL = nreqs; 1642 RETVAL = eio_nreqs ();
1442 OUTPUT: 1643 OUTPUT:
1443 RETVAL 1644 RETVAL
1444 1645
1646int
1647nready ()
1648 CODE:
1649 RETVAL = eio_nready ();
1650 OUTPUT:
1651 RETVAL
1652
1653int
1654npending ()
1655 CODE:
1656 RETVAL = eio_npending ();
1657 OUTPUT:
1658 RETVAL
1659
1660int
1661nthreads ()
1662 CODE:
1663 RETVAL = eio_nthreads ();
1664 OUTPUT:
1665 RETVAL
1666
1667int
1668fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1669 CODE:
1670 RETVAL = posix_fadvise (fh, offset, length, advice);
1671 OUTPUT:
1672 RETVAL
1673
1674IV
1675sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1676 CODE:
1677 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1678 OUTPUT:
1679 RETVAL
1680
1681void
1682mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1683 PPCODE:
1684 sv_unmagic (scalar, MMAP_MAGIC);
1685{
1686 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1687 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1688 if (addr == (void *)-1)
1689 XSRETURN_NO;
1690
1691 sv_force_normal (scalar);
1692
1693 /* we store the length in mg_obj, as namlen is I32 :/ */
1694 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1695 ->mg_obj = (SV *)length;
1696
1697 SvUPGRADE (scalar, SVt_PV); /* nop... */
1698
1699 if (!(prot & PROT_WRITE))
1700 SvREADONLY_on (scalar);
1701
1702 if (SvLEN (scalar))
1703 Safefree (SvPVX (scalar));
1704
1705 SvPVX (scalar) = (char *)addr;
1706 SvCUR_set (scalar, length);
1707 SvLEN_set (scalar, 0);
1708 SvPOK_only (scalar);
1709
1710 XSRETURN_YES;
1711}
1712
1713void
1714munmap (SV *scalar)
1715 CODE:
1716 sv_unmagic (scalar, MMAP_MAGIC);
1717
1718int
1719madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1720 ALIAS:
1721 mprotect = 1
1722 CODE:
1723{
1724 STRLEN svlen;
1725 void *addr = SvPVbyte (scalar, svlen);
1726 size_t len = SvUV (length);
1727
1728 if (offset < 0)
1729 offset += svlen;
1730
1731 if (offset < 0 || offset > svlen)
1732 croak ("offset outside of scalar");
1733
1734 if (!SvOK (length) || len + offset > svlen)
1735 len = svlen - offset;
1736
1737 addr = (void *)(((intptr_t)addr) + offset);
1738 eio_page_align (&addr, &len);
1739
1740 switch (ix)
1741 {
1742 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1743 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1744 }
1745}
1746 OUTPUT:
1747 RETVAL
1748
1749int
1750munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1751 CODE:
1752{
1753 STRLEN svlen;
1754 void *addr = SvPVbyte (scalar, svlen);
1755 size_t len = SvUV (length);
1756
1757 if (offset < 0)
1758 offset += svlen;
1759
1760 if (offset < 0 || offset > svlen)
1761 croak ("offset outside of scalar");
1762
1763 if (!SvOK (length) || len + offset > svlen)
1764 len = svlen - offset;
1765
1766 addr = (void *)(((intptr_t)addr) + offset);
1767 eio_page_align (&addr, &len);
1768#if _POSIX_MEMLOCK_RANGE
1769 RETVAL = munlock (addr, len);
1770#else
1771 RETVAL = ((errno = ENOSYS), -1);
1772#endif
1773}
1774 OUTPUT:
1775 RETVAL
1776
1777int
1778munlockall ()
1779 CODE:
1780#if _POSIX_MEMLOCK
1781 munlockall ();
1782#else
1783 RETVAL = -1;
1784 errno = ENOSYS;
1785#endif
1786 OUTPUT:
1787 RETVAL
1788
1789void _on_next_submit (SV *cb)
1790 CODE:
1791 SvREFCNT_dec (on_next_submit);
1792 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1793
1445PROTOTYPES: DISABLE 1794PROTOTYPES: DISABLE
1795
1796MODULE = IO::AIO PACKAGE = IO::AIO::WD
1797
1798BOOT:
1799{
1800 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
1801 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
1802}
1803
1804void
1805DESTROY (SV *self)
1806 CODE:
1807{
1808 aio_wd wd = SvAIO_WD (self);
1809#if HAVE_AT
1810 {
1811 SV *callback = &PL_sv_undef;
1812 dREQ; /* clobbers next_pri :/ */
1813 next_pri = req->pri; /* restore next_pri */
1814 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1815 req->type = EIO_WD_CLOSE;
1816 req->wd = wd;
1817 REQ_SEND;
1818 }
1819#else
1820 eio_wd_close_sync (wd);
1821#endif
1822}
1446 1823
1447MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1824MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1448 1825
1449void 1826void
1450cancel (aio_req_ornot req) 1827cancel (aio_req_ornot req)
1451 CODE: 1828 CODE:
1452 req_cancel (req); 1829 eio_cancel (req);
1453 1830
1454void 1831void
1455cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1832cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1456 CODE: 1833 PPCODE:
1834{
1835 if (GIMME_V != G_VOID)
1836 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1837
1838 if (items > 1)
1839 {
1840 SV *cb_cv =get_cb (callback);
1841
1457 SvREFCNT_dec (req->callback); 1842 SvREFCNT_dec (req->callback);
1458 req->callback = newSVsv (callback); 1843 req->callback = SvREFCNT_inc (cb_cv);
1844 }
1845}
1459 1846
1460MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1847MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1461 1848
1462void 1849void
1463add (aio_req grp, ...) 1850add (aio_req grp, ...)
1464 PPCODE: 1851 PPCODE:
1465{ 1852{
1466 int i; 1853 int i;
1467 aio_req req;
1468 1854
1469 if (grp->fd == 2) 1855 if (grp->int1 == 2)
1470 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1856 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1471 1857
1472 for (i = 1; i < items; ++i ) 1858 for (i = 1; i < items; ++i )
1473 { 1859 {
1860 aio_req req;
1861
1474 if (GIMME_V != G_VOID) 1862 if (GIMME_V != G_VOID)
1475 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1863 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1476 1864
1477 req = SvAIO_REQ (ST (i)); 1865 req = SvAIO_REQ (ST (i));
1478 1866
1479 if (req) 1867 if (req)
1480 { 1868 eio_grp_add (grp, req);
1481 ++grp->length;
1482 req->grp = grp;
1483
1484 req->grp_prev = 0;
1485 req->grp_next = grp->grp_first;
1486
1487 if (grp->grp_first)
1488 grp->grp_first->grp_prev = req;
1489
1490 grp->grp_first = req;
1491 }
1492 } 1869 }
1493} 1870}
1494 1871
1495void 1872void
1496cancel_subs (aio_req_ornot req) 1873cancel_subs (aio_req_ornot req)
1500void 1877void
1501result (aio_req grp, ...) 1878result (aio_req grp, ...)
1502 CODE: 1879 CODE:
1503{ 1880{
1504 int i; 1881 int i;
1882 AV *av;
1883
1884 grp->errorno = errno;
1885
1505 AV *av = newAV (); 1886 av = newAV ();
1887 av_extend (av, items - 1);
1506 1888
1507 for (i = 1; i < items; ++i ) 1889 for (i = 1; i < items; ++i )
1508 av_push (av, newSVsv (ST (i))); 1890 av_push (av, newSVsv (ST (i)));
1509 1891
1510 SvREFCNT_dec (grp->data); 1892 SvREFCNT_dec (grp->sv1);
1511 grp->data = (SV *)av; 1893 grp->sv1 = (SV *)av;
1512} 1894}
1895
1896void
1897errno (aio_req grp, int errorno = errno)
1898 CODE:
1899 grp->errorno = errorno;
1513 1900
1514void 1901void
1515limit (aio_req grp, int limit) 1902limit (aio_req grp, int limit)
1516 CODE: 1903 CODE:
1517 grp->fd2 = limit; 1904 eio_grp_limit (grp, limit);
1518 aio_grp_feed (grp);
1519 1905
1520void 1906void
1521feed (aio_req grp, SV *callback=&PL_sv_undef) 1907feed (aio_req grp, SV *callback=&PL_sv_undef)
1522 CODE: 1908 CODE:
1523{ 1909{
1524 SvREFCNT_dec (grp->fh2); 1910 SvREFCNT_dec (grp->sv2);
1525 grp->fh2 = newSVsv (callback); 1911 grp->sv2 = newSVsv (callback);
1912 grp->feed = aio_grp_feed;
1526 1913
1527 if (grp->fd2 <= 0) 1914 if (grp->int2 <= 0)
1528 grp->fd2 = 2; 1915 grp->int2 = 2;
1529 1916
1530 aio_grp_feed (grp); 1917 eio_grp_limit (grp, grp->int2);
1531} 1918}
1532 1919

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