1 |
#include "libeio/xthread.h" |
2 |
|
3 |
#include <errno.h> |
4 |
|
5 |
#include "EXTERN.h" |
6 |
#include "perl.h" |
7 |
#include "XSUB.h" |
8 |
|
9 |
#include <stddef.h> |
10 |
#include <stdlib.h> |
11 |
#include <errno.h> |
12 |
#include <sys/types.h> |
13 |
#include <sys/stat.h> |
14 |
#include <limits.h> |
15 |
#include <fcntl.h> |
16 |
#include <sched.h> |
17 |
|
18 |
/* perl namespace pollution */ |
19 |
#undef VERSION |
20 |
|
21 |
#ifdef _WIN32 |
22 |
|
23 |
# define EIO_STRUCT_DIRENT Direntry_t |
24 |
# undef malloc |
25 |
# undef free |
26 |
|
27 |
// perl overrides all those nice win32 functions |
28 |
# undef open |
29 |
# undef read |
30 |
# undef write |
31 |
# undef send |
32 |
# undef recv |
33 |
# undef stat |
34 |
# undef fstat |
35 |
# define lstat stat |
36 |
# undef truncate |
37 |
# undef ftruncate |
38 |
# undef open |
39 |
# undef close |
40 |
# undef unlink |
41 |
# undef rmdir |
42 |
# undef rename |
43 |
# undef lseek |
44 |
|
45 |
# define chown(a,b,c) (errno = ENOSYS, -1) |
46 |
# define fchown(a,b,c) (errno = ENOSYS, -1) |
47 |
# define fchmod(a,b) (errno = ENOSYS, -1) |
48 |
# define symlink(a,b) (errno = ENOSYS, -1) |
49 |
# define readlink(a,b,c) (errno = ENOSYS, -1) |
50 |
# define mknod(a,b,c) (errno = ENOSYS, -1) |
51 |
# define truncate(a,b) (errno = ENOSYS, -1) |
52 |
# define ftruncate(fd,o) chsize ((fd), (o)) |
53 |
# define fsync(fd) _commit (fd) |
54 |
# define opendir(fd) (errno = ENOSYS, 0) |
55 |
# define readdir(fd) (errno = ENOSYS, -1) |
56 |
# define closedir(fd) (errno = ENOSYS, -1) |
57 |
# define mkdir(a,b) mkdir (a) |
58 |
|
59 |
#else |
60 |
|
61 |
# include <sys/time.h> |
62 |
# include <sys/select.h> |
63 |
# include <unistd.h> |
64 |
# include <utime.h> |
65 |
# include <signal.h> |
66 |
# define EIO_STRUCT_DIRENT struct dirent |
67 |
|
68 |
#endif |
69 |
|
70 |
/* perl stupidly overrides readdir and maybe others */ |
71 |
/* with thread-unsafe versions, imagine that :( */ |
72 |
#undef readdir |
73 |
#undef opendir |
74 |
#undef closedir |
75 |
|
76 |
#define EIO_STRUCT_STAT Stat_t |
77 |
|
78 |
/* use NV for 32 bit perls as it allows larger offsets */ |
79 |
#if IVSIZE >= 8 |
80 |
# define SvVAL64 SvIV |
81 |
#else |
82 |
# define SvVAL64 SvNV |
83 |
#endif |
84 |
|
85 |
/*****************************************************************************/ |
86 |
|
87 |
#if __GNUC__ >= 3 |
88 |
# define expect(expr,value) __builtin_expect ((expr),(value)) |
89 |
#else |
90 |
# define expect(expr,value) (expr) |
91 |
#endif |
92 |
|
93 |
#define expect_false(expr) expect ((expr) != 0, 0) |
94 |
#define expect_true(expr) expect ((expr) != 0, 1) |
95 |
|
96 |
/*****************************************************************************/ |
97 |
|
98 |
static HV *stash; |
99 |
typedef SV SV8; /* byte-sv, used for argument-checking */ |
100 |
|
101 |
#define AIO_REQ_KLASS "IO::AIO::REQ" |
102 |
#define AIO_GRP_KLASS "IO::AIO::GRP" |
103 |
|
104 |
#define EIO_REQ_MEMBERS \ |
105 |
SV *callback; \ |
106 |
SV *sv1, *sv2; \ |
107 |
STRLEN stroffset; \ |
108 |
SV *self; |
109 |
|
110 |
#define EIO_NO_WRAPPERS 1 |
111 |
|
112 |
#include "libeio/eio.h" |
113 |
|
114 |
static int req_invoke (eio_req *req); |
115 |
#define EIO_FINISH(req) req_invoke (req) |
116 |
static void aio_grp_feed (eio_req *grp); |
117 |
#define EIO_FEED(req) aio_grp_feed (req) |
118 |
static void req_destroy (eio_req *grp); |
119 |
#define EIO_DESTROY(req) req_destroy (req) |
120 |
|
121 |
enum { |
122 |
FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ |
123 |
}; |
124 |
|
125 |
#include "libeio/eio.c" |
126 |
|
127 |
typedef eio_req *aio_req; |
128 |
typedef eio_req *aio_req_ornot; |
129 |
|
130 |
static SV *on_next_submit; |
131 |
static int next_pri = EIO_PRI_DEFAULT; |
132 |
static int max_outstanding; |
133 |
|
134 |
static int respipe_osf [2], respipe [2] = { -1, -1 }; |
135 |
|
136 |
static void req_destroy (aio_req req); |
137 |
static void req_cancel (aio_req req); |
138 |
|
139 |
static void want_poll (void) |
140 |
{ |
141 |
/* write a dummy byte to the pipe so fh becomes ready */ |
142 |
respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1); |
143 |
} |
144 |
|
145 |
static void done_poll (void) |
146 |
{ |
147 |
/* read any signals sent by the worker threads */ |
148 |
char buf [4]; |
149 |
while (respipe_read (respipe [0], buf, 4) == 4) |
150 |
; |
151 |
} |
152 |
|
153 |
/* must be called at most once */ |
154 |
static SV *req_sv (aio_req req, const char *klass) |
155 |
{ |
156 |
if (!req->self) |
157 |
{ |
158 |
req->self = (SV *)newHV (); |
159 |
sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
160 |
} |
161 |
|
162 |
return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
163 |
} |
164 |
|
165 |
static aio_req SvAIO_REQ (SV *sv) |
166 |
{ |
167 |
MAGIC *mg; |
168 |
|
169 |
if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
170 |
croak ("object of class " AIO_REQ_KLASS " expected"); |
171 |
|
172 |
mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
173 |
|
174 |
return mg ? (aio_req)mg->mg_ptr : 0; |
175 |
} |
176 |
|
177 |
static void aio_grp_feed (aio_req grp) |
178 |
{ |
179 |
if (grp->sv2 && SvOK (grp->sv2)) |
180 |
{ |
181 |
dSP; |
182 |
|
183 |
ENTER; |
184 |
SAVETMPS; |
185 |
PUSHMARK (SP); |
186 |
XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
187 |
PUTBACK; |
188 |
call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); |
189 |
SPAGAIN; |
190 |
FREETMPS; |
191 |
LEAVE; |
192 |
} |
193 |
} |
194 |
|
195 |
static void req_submit (eio_req *req) |
196 |
{ |
197 |
eio_submit (req); |
198 |
|
199 |
if (expect_false (on_next_submit)) |
200 |
{ |
201 |
dSP; |
202 |
SV *cb = sv_2mortal (on_next_submit); |
203 |
|
204 |
on_next_submit = 0; |
205 |
|
206 |
PUSHMARK (SP); |
207 |
PUTBACK; |
208 |
call_sv (cb, G_DISCARD | G_EVAL); |
209 |
} |
210 |
} |
211 |
|
212 |
static int req_invoke (eio_req *req) |
213 |
{ |
214 |
dSP; |
215 |
|
216 |
if (req->flags & FLAG_SV2_RO_OFF) |
217 |
SvREADONLY_off (req->sv2); |
218 |
|
219 |
if (!EIO_CANCELLED (req) && req->callback) |
220 |
{ |
221 |
ENTER; |
222 |
SAVETMPS; |
223 |
PUSHMARK (SP); |
224 |
EXTEND (SP, 1); |
225 |
|
226 |
switch (req->type) |
227 |
{ |
228 |
case EIO_READDIR: |
229 |
{ |
230 |
SV *rv = &PL_sv_undef; |
231 |
|
232 |
if (req->result >= 0) |
233 |
{ |
234 |
int i; |
235 |
char *buf = req->ptr2; |
236 |
AV *av = newAV (); |
237 |
|
238 |
av_extend (av, req->result - 1); |
239 |
|
240 |
for (i = 0; i < req->result; ++i) |
241 |
{ |
242 |
SV *sv = newSVpv (buf, 0); |
243 |
|
244 |
av_store (av, i, sv); |
245 |
buf += SvCUR (sv) + 1; |
246 |
} |
247 |
|
248 |
rv = sv_2mortal (newRV_noinc ((SV *)av)); |
249 |
} |
250 |
|
251 |
PUSHs (rv); |
252 |
} |
253 |
break; |
254 |
|
255 |
case EIO_OPEN: |
256 |
{ |
257 |
/* convert fd to fh */ |
258 |
SV *fh = &PL_sv_undef; |
259 |
|
260 |
if (req->result >= 0) |
261 |
{ |
262 |
GV *gv = (GV *)sv_newmortal (); |
263 |
int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); |
264 |
char sym [64]; |
265 |
int symlen; |
266 |
|
267 |
symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); |
268 |
gv_init (gv, stash, sym, symlen, 0); |
269 |
|
270 |
symlen = snprintf ( |
271 |
sym, |
272 |
sizeof (sym), |
273 |
"%s&=%d", |
274 |
flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", |
275 |
req->result |
276 |
); |
277 |
|
278 |
if (do_open (gv, sym, symlen, 0, 0, 0, 0)) |
279 |
fh = (SV *)gv; |
280 |
} |
281 |
|
282 |
PUSHs (fh); |
283 |
} |
284 |
break; |
285 |
|
286 |
case EIO_GROUP: |
287 |
req->int1 = 2; /* mark group as finished */ |
288 |
|
289 |
if (req->sv1) |
290 |
{ |
291 |
int i; |
292 |
AV *av = (AV *)req->sv1; |
293 |
|
294 |
EXTEND (SP, AvFILL (av) + 1); |
295 |
for (i = 0; i <= AvFILL (av); ++i) |
296 |
PUSHs (*av_fetch (av, i, 0)); |
297 |
} |
298 |
break; |
299 |
|
300 |
case EIO_NOP: |
301 |
case EIO_BUSY: |
302 |
break; |
303 |
|
304 |
case EIO_READLINK: |
305 |
if (req->result > 0) |
306 |
PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result))); |
307 |
break; |
308 |
|
309 |
case EIO_STAT: |
310 |
case EIO_LSTAT: |
311 |
case EIO_FSTAT: |
312 |
PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; |
313 |
PL_laststatval = req->result; |
314 |
PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); |
315 |
PUSHs (sv_2mortal (newSViv (req->result))); |
316 |
break; |
317 |
|
318 |
case EIO_READ: |
319 |
SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); |
320 |
*SvEND (req->sv2) = 0; |
321 |
PUSHs (sv_2mortal (newSViv (req->result))); |
322 |
break; |
323 |
|
324 |
case EIO_DUP2: |
325 |
if (req->result > 0) |
326 |
req->result = 0; |
327 |
/* FALLTHROUGH */ |
328 |
|
329 |
default: |
330 |
PUSHs (sv_2mortal (newSViv (req->result))); |
331 |
break; |
332 |
} |
333 |
|
334 |
errno = req->errorno; |
335 |
|
336 |
PUTBACK; |
337 |
call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); |
338 |
SPAGAIN; |
339 |
|
340 |
FREETMPS; |
341 |
LEAVE; |
342 |
|
343 |
PUTBACK; |
344 |
} |
345 |
|
346 |
return !!SvTRUE (ERRSV); |
347 |
} |
348 |
|
349 |
static void req_destroy (aio_req req) |
350 |
{ |
351 |
if (req->self) |
352 |
{ |
353 |
sv_unmagic (req->self, PERL_MAGIC_ext); |
354 |
SvREFCNT_dec (req->self); |
355 |
} |
356 |
|
357 |
SvREFCNT_dec (req->sv1); |
358 |
SvREFCNT_dec (req->sv2); |
359 |
SvREFCNT_dec (req->callback); |
360 |
|
361 |
Safefree (req); |
362 |
} |
363 |
|
364 |
static void req_cancel_subs (aio_req grp) |
365 |
{ |
366 |
aio_req sub; |
367 |
|
368 |
if (grp->type != EIO_GROUP) |
369 |
return; |
370 |
|
371 |
SvREFCNT_dec (grp->sv2); |
372 |
grp->sv2 = 0; |
373 |
|
374 |
eio_grp_cancel (grp); |
375 |
} |
376 |
|
377 |
#ifdef USE_SOCKETS_AS_HANDLES |
378 |
# define TO_SOCKET(x) (win32_get_osfhandle (x)) |
379 |
#else |
380 |
# define TO_SOCKET(x) (x) |
381 |
#endif |
382 |
|
383 |
static void |
384 |
create_respipe (void) |
385 |
{ |
386 |
int old_readfd = respipe [0]; |
387 |
|
388 |
if (respipe [1] >= 0) |
389 |
respipe_close (TO_SOCKET (respipe [1])); |
390 |
|
391 |
#ifdef _WIN32 |
392 |
if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe)) |
393 |
#else |
394 |
if (pipe (respipe)) |
395 |
#endif |
396 |
croak ("unable to initialize result pipe"); |
397 |
|
398 |
if (old_readfd >= 0) |
399 |
{ |
400 |
if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0) |
401 |
croak ("unable to initialize result pipe(2)"); |
402 |
|
403 |
respipe_close (respipe [0]); |
404 |
respipe [0] = old_readfd; |
405 |
} |
406 |
|
407 |
#ifdef _WIN32 |
408 |
int arg = 1; |
409 |
if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg) |
410 |
|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg)) |
411 |
#else |
412 |
if (fcntl (respipe [0], F_SETFL, O_NONBLOCK) |
413 |
|| fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
414 |
#endif |
415 |
croak ("unable to initialize result pipe(3)"); |
416 |
|
417 |
respipe_osf [0] = TO_SOCKET (respipe [0]); |
418 |
respipe_osf [1] = TO_SOCKET (respipe [1]); |
419 |
} |
420 |
|
421 |
static void poll_wait (void) |
422 |
{ |
423 |
fd_set rfd; |
424 |
|
425 |
while (eio_nreqs ()) |
426 |
{ |
427 |
int size; |
428 |
|
429 |
X_LOCK (reslock); |
430 |
size = res_queue.size; |
431 |
X_UNLOCK (reslock); |
432 |
|
433 |
if (size) |
434 |
return; |
435 |
|
436 |
etp_maybe_start_thread (); |
437 |
|
438 |
FD_ZERO (&rfd); |
439 |
FD_SET (respipe [0], &rfd); |
440 |
|
441 |
PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0); |
442 |
} |
443 |
} |
444 |
|
445 |
static int poll_cb (void) |
446 |
{ |
447 |
for (;;) |
448 |
{ |
449 |
int res = eio_poll (); |
450 |
|
451 |
if (res > 0) |
452 |
croak (0); |
453 |
|
454 |
if (!max_outstanding || max_outstanding > eio_nreqs ()) |
455 |
return res; |
456 |
|
457 |
poll_wait (); |
458 |
} |
459 |
} |
460 |
|
461 |
static void atfork_child (void) |
462 |
{ |
463 |
create_respipe (); |
464 |
} |
465 |
|
466 |
static SV * |
467 |
get_cb (SV *cb_sv) |
468 |
{ |
469 |
HV *st; |
470 |
GV *gvp; |
471 |
CV *cv; |
472 |
|
473 |
if (!SvOK (cb_sv)) |
474 |
return 0; |
475 |
|
476 |
cv = sv_2cv (cb_sv, &st, &gvp, 0); |
477 |
|
478 |
if (!cv) |
479 |
croak ("IO::AIO callback must be undef or a CODE reference"); |
480 |
|
481 |
return (SV *)cv; |
482 |
} |
483 |
|
484 |
#define dREQ \ |
485 |
SV *cb_cv; \ |
486 |
aio_req req; \ |
487 |
int req_pri = next_pri; \ |
488 |
next_pri = EIO_PRI_DEFAULT; \ |
489 |
\ |
490 |
cb_cv = get_cb (callback); \ |
491 |
\ |
492 |
Newz (0, req, 1, eio_req); \ |
493 |
if (!req) \ |
494 |
croak ("out of memory during eio_req allocation"); \ |
495 |
\ |
496 |
req->callback = SvREFCNT_inc (cb_cv); \ |
497 |
req->pri = req_pri |
498 |
|
499 |
#define REQ_SEND \ |
500 |
PUTBACK; \ |
501 |
req_submit (req); \ |
502 |
SPAGAIN; \ |
503 |
\ |
504 |
if (GIMME_V != G_VOID) \ |
505 |
XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
506 |
|
507 |
MODULE = IO::AIO PACKAGE = IO::AIO |
508 |
|
509 |
PROTOTYPES: ENABLE |
510 |
|
511 |
BOOT: |
512 |
{ |
513 |
stash = gv_stashpv ("IO::AIO", 1); |
514 |
|
515 |
newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
516 |
newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
517 |
newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
518 |
newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
519 |
newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
520 |
#ifndef _WIN32 |
521 |
newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
522 |
#endif |
523 |
|
524 |
create_respipe (); |
525 |
|
526 |
if (eio_init (want_poll, done_poll) < 0) |
527 |
croak ("IO::AIO: unable to initialise eio library"); |
528 |
|
529 |
/* atfork child called in fifo order, so before eio's handler */ |
530 |
X_THREAD_ATFORK (0, 0, atfork_child); |
531 |
} |
532 |
|
533 |
void |
534 |
max_poll_reqs (int nreqs) |
535 |
PROTOTYPE: $ |
536 |
CODE: |
537 |
eio_set_max_poll_reqs (nreqs); |
538 |
|
539 |
void |
540 |
max_poll_time (double nseconds) |
541 |
PROTOTYPE: $ |
542 |
CODE: |
543 |
eio_set_max_poll_time (nseconds); |
544 |
|
545 |
void |
546 |
min_parallel (int nthreads) |
547 |
PROTOTYPE: $ |
548 |
CODE: |
549 |
eio_set_min_parallel (nthreads); |
550 |
|
551 |
void |
552 |
max_parallel (int nthreads) |
553 |
PROTOTYPE: $ |
554 |
CODE: |
555 |
eio_set_max_parallel (nthreads); |
556 |
|
557 |
void |
558 |
max_idle (int nthreads) |
559 |
PROTOTYPE: $ |
560 |
CODE: |
561 |
eio_set_max_idle (nthreads); |
562 |
|
563 |
void |
564 |
max_outstanding (int maxreqs) |
565 |
PROTOTYPE: $ |
566 |
CODE: |
567 |
max_outstanding = maxreqs; |
568 |
|
569 |
void |
570 |
aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) |
571 |
PROTOTYPE: $$$;$ |
572 |
PPCODE: |
573 |
{ |
574 |
dREQ; |
575 |
|
576 |
req->type = EIO_OPEN; |
577 |
req->sv1 = newSVsv (pathname); |
578 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
579 |
req->int1 = flags; |
580 |
req->int2 = mode; |
581 |
|
582 |
REQ_SEND; |
583 |
} |
584 |
|
585 |
void |
586 |
aio_fsync (SV *fh, SV *callback=&PL_sv_undef) |
587 |
PROTOTYPE: $;$ |
588 |
ALIAS: |
589 |
aio_fsync = EIO_FSYNC |
590 |
aio_fdatasync = EIO_FDATASYNC |
591 |
PPCODE: |
592 |
{ |
593 |
dREQ; |
594 |
|
595 |
req->type = ix; |
596 |
req->sv1 = newSVsv (fh); |
597 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
598 |
|
599 |
REQ_SEND (req); |
600 |
} |
601 |
|
602 |
void |
603 |
aio_close (SV *fh, SV *callback=&PL_sv_undef) |
604 |
PROTOTYPE: $;$ |
605 |
PPCODE: |
606 |
{ |
607 |
static int close_pipe = -1; /* dummy fd to close fds via dup2 */ |
608 |
dREQ; |
609 |
|
610 |
if (close_pipe < 0) |
611 |
{ |
612 |
int pipefd [2]; |
613 |
|
614 |
if (pipe (pipefd) < 0 |
615 |
|| close (pipefd [1]) < 0 |
616 |
|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0) |
617 |
abort (); /*D*/ |
618 |
|
619 |
close_pipe = pipefd [0]; |
620 |
} |
621 |
|
622 |
req->type = EIO_DUP2; |
623 |
req->int1 = close_pipe; |
624 |
req->sv2 = newSVsv (fh); |
625 |
req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
626 |
|
627 |
REQ_SEND (req); |
628 |
} |
629 |
|
630 |
void |
631 |
aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) |
632 |
ALIAS: |
633 |
aio_read = EIO_READ |
634 |
aio_write = EIO_WRITE |
635 |
PROTOTYPE: $$$$$;$ |
636 |
PPCODE: |
637 |
{ |
638 |
STRLEN svlen; |
639 |
char *svptr = SvPVbyte (data, svlen); |
640 |
UV len = SvUV (length); |
641 |
|
642 |
SvUPGRADE (data, SVt_PV); |
643 |
SvPOK_on (data); |
644 |
|
645 |
if (dataoffset < 0) |
646 |
dataoffset += svlen; |
647 |
|
648 |
if (dataoffset < 0 || dataoffset > svlen) |
649 |
croak ("dataoffset outside of data scalar"); |
650 |
|
651 |
if (ix == EIO_WRITE) |
652 |
{ |
653 |
/* write: check length and adjust. */ |
654 |
if (!SvOK (length) || len + dataoffset > svlen) |
655 |
len = svlen - dataoffset; |
656 |
} |
657 |
else |
658 |
{ |
659 |
/* read: grow scalar as necessary */ |
660 |
svptr = SvGROW (data, len + dataoffset + 1); |
661 |
} |
662 |
|
663 |
if (len < 0) |
664 |
croak ("length must not be negative"); |
665 |
|
666 |
{ |
667 |
dREQ; |
668 |
|
669 |
req->type = ix; |
670 |
req->sv1 = newSVsv (fh); |
671 |
req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh)) |
672 |
: IoOFP (sv_2io (fh))); |
673 |
req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
674 |
req->size = len; |
675 |
req->sv2 = SvREFCNT_inc (data); |
676 |
req->ptr2 = (char *)svptr + dataoffset; |
677 |
req->stroffset = dataoffset; |
678 |
|
679 |
if (!SvREADONLY (data)) |
680 |
{ |
681 |
SvREADONLY_on (data); |
682 |
req->flags |= FLAG_SV2_RO_OFF; |
683 |
} |
684 |
|
685 |
REQ_SEND; |
686 |
} |
687 |
} |
688 |
|
689 |
void |
690 |
aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) |
691 |
PROTOTYPE: $$;$ |
692 |
PPCODE: |
693 |
{ |
694 |
SV *data; |
695 |
dREQ; |
696 |
|
697 |
req->type = EIO_READLINK; |
698 |
req->sv1 = newSVsv (path); |
699 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
700 |
|
701 |
REQ_SEND; |
702 |
} |
703 |
|
704 |
void |
705 |
aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) |
706 |
PROTOTYPE: $$$$;$ |
707 |
PPCODE: |
708 |
{ |
709 |
dREQ; |
710 |
|
711 |
req->type = EIO_SENDFILE; |
712 |
req->sv1 = newSVsv (out_fh); |
713 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); |
714 |
req->sv2 = newSVsv (in_fh); |
715 |
req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); |
716 |
req->offs = SvVAL64 (in_offset); |
717 |
req->size = length; |
718 |
|
719 |
REQ_SEND; |
720 |
} |
721 |
|
722 |
void |
723 |
aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) |
724 |
PROTOTYPE: $$$;$ |
725 |
PPCODE: |
726 |
{ |
727 |
dREQ; |
728 |
|
729 |
req->type = EIO_READAHEAD; |
730 |
req->sv1 = newSVsv (fh); |
731 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); |
732 |
req->offs = SvVAL64 (offset); |
733 |
req->size = length; |
734 |
|
735 |
REQ_SEND; |
736 |
} |
737 |
|
738 |
void |
739 |
aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) |
740 |
ALIAS: |
741 |
aio_stat = EIO_STAT |
742 |
aio_lstat = EIO_LSTAT |
743 |
PPCODE: |
744 |
{ |
745 |
dREQ; |
746 |
|
747 |
req->sv1 = newSVsv (fh_or_path); |
748 |
|
749 |
if (SvPOK (req->sv1)) |
750 |
{ |
751 |
req->type = ix; |
752 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
753 |
} |
754 |
else |
755 |
{ |
756 |
req->type = EIO_FSTAT; |
757 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
758 |
} |
759 |
|
760 |
REQ_SEND; |
761 |
} |
762 |
|
763 |
void |
764 |
aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) |
765 |
PPCODE: |
766 |
{ |
767 |
dREQ; |
768 |
|
769 |
req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; |
770 |
req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; |
771 |
req->sv1 = newSVsv (fh_or_path); |
772 |
|
773 |
if (SvPOK (req->sv1)) |
774 |
{ |
775 |
req->type = EIO_UTIME; |
776 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
777 |
} |
778 |
else |
779 |
{ |
780 |
req->type = EIO_FUTIME; |
781 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
782 |
} |
783 |
|
784 |
REQ_SEND; |
785 |
} |
786 |
|
787 |
void |
788 |
aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) |
789 |
PPCODE: |
790 |
{ |
791 |
dREQ; |
792 |
|
793 |
req->sv1 = newSVsv (fh_or_path); |
794 |
req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
795 |
|
796 |
if (SvPOK (req->sv1)) |
797 |
{ |
798 |
req->type = EIO_TRUNCATE; |
799 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
800 |
} |
801 |
else |
802 |
{ |
803 |
req->type = EIO_FTRUNCATE; |
804 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
805 |
} |
806 |
|
807 |
REQ_SEND; |
808 |
} |
809 |
|
810 |
void |
811 |
aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) |
812 |
ALIAS: |
813 |
aio_chmod = EIO_CHMOD |
814 |
aio_mkdir = EIO_MKDIR |
815 |
PPCODE: |
816 |
{ |
817 |
dREQ; |
818 |
|
819 |
req->int2 = mode; |
820 |
req->sv1 = newSVsv (fh_or_path); |
821 |
|
822 |
if (SvPOK (req->sv1)) |
823 |
{ |
824 |
req->type = ix; |
825 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
826 |
} |
827 |
else |
828 |
{ |
829 |
req->type = EIO_FCHMOD; |
830 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
831 |
} |
832 |
|
833 |
REQ_SEND; |
834 |
} |
835 |
|
836 |
void |
837 |
aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) |
838 |
PPCODE: |
839 |
{ |
840 |
dREQ; |
841 |
|
842 |
req->int2 = SvOK (uid) ? SvIV (uid) : -1; |
843 |
req->int3 = SvOK (gid) ? SvIV (gid) : -1; |
844 |
req->sv1 = newSVsv (fh_or_path); |
845 |
|
846 |
if (SvPOK (req->sv1)) |
847 |
{ |
848 |
req->type = EIO_CHOWN; |
849 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
850 |
} |
851 |
else |
852 |
{ |
853 |
req->type = EIO_FCHOWN; |
854 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
855 |
} |
856 |
|
857 |
REQ_SEND; |
858 |
} |
859 |
|
860 |
void |
861 |
aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) |
862 |
ALIAS: |
863 |
aio_unlink = EIO_UNLINK |
864 |
aio_rmdir = EIO_RMDIR |
865 |
aio_readdir = EIO_READDIR |
866 |
PPCODE: |
867 |
{ |
868 |
dREQ; |
869 |
|
870 |
req->type = ix; |
871 |
req->sv1 = newSVsv (pathname); |
872 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
873 |
|
874 |
REQ_SEND; |
875 |
} |
876 |
|
877 |
void |
878 |
aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) |
879 |
ALIAS: |
880 |
aio_link = EIO_LINK |
881 |
aio_symlink = EIO_SYMLINK |
882 |
aio_rename = EIO_RENAME |
883 |
PPCODE: |
884 |
{ |
885 |
dREQ; |
886 |
|
887 |
req->type = ix; |
888 |
req->sv1 = newSVsv (oldpath); |
889 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
890 |
req->sv2 = newSVsv (newpath); |
891 |
req->ptr2 = SvPVbyte_nolen (req->sv2); |
892 |
|
893 |
REQ_SEND; |
894 |
} |
895 |
|
896 |
void |
897 |
aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) |
898 |
PPCODE: |
899 |
{ |
900 |
dREQ; |
901 |
|
902 |
req->type = EIO_MKNOD; |
903 |
req->sv1 = newSVsv (pathname); |
904 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
905 |
req->int2 = (mode_t)mode; |
906 |
req->offs = dev; |
907 |
|
908 |
REQ_SEND; |
909 |
} |
910 |
|
911 |
void |
912 |
aio_busy (double delay, SV *callback=&PL_sv_undef) |
913 |
PPCODE: |
914 |
{ |
915 |
dREQ; |
916 |
|
917 |
req->type = EIO_BUSY; |
918 |
req->nv1 = delay < 0. ? 0. : delay; |
919 |
|
920 |
REQ_SEND; |
921 |
} |
922 |
|
923 |
void |
924 |
aio_group (SV *callback=&PL_sv_undef) |
925 |
PROTOTYPE: ;$ |
926 |
PPCODE: |
927 |
{ |
928 |
dREQ; |
929 |
|
930 |
req->type = EIO_GROUP; |
931 |
|
932 |
req_submit (req); |
933 |
XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
934 |
} |
935 |
|
936 |
void |
937 |
aio_nop (SV *callback=&PL_sv_undef) |
938 |
ALIAS: |
939 |
aio_nop = EIO_NOP |
940 |
aio_sync = EIO_SYNC |
941 |
PPCODE: |
942 |
{ |
943 |
dREQ; |
944 |
|
945 |
req->type = ix; |
946 |
|
947 |
REQ_SEND; |
948 |
} |
949 |
|
950 |
int |
951 |
aioreq_pri (int pri = 0) |
952 |
PROTOTYPE: ;$ |
953 |
CODE: |
954 |
RETVAL = next_pri; |
955 |
if (items > 0) |
956 |
{ |
957 |
if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; |
958 |
if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX; |
959 |
next_pri = pri; |
960 |
} |
961 |
OUTPUT: |
962 |
RETVAL |
963 |
|
964 |
void |
965 |
aioreq_nice (int nice = 0) |
966 |
CODE: |
967 |
nice = next_pri - nice; |
968 |
if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN; |
969 |
if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; |
970 |
next_pri = nice; |
971 |
|
972 |
void |
973 |
flush () |
974 |
PROTOTYPE: |
975 |
CODE: |
976 |
while (eio_nreqs ()) |
977 |
{ |
978 |
poll_wait (); |
979 |
poll_cb (); |
980 |
} |
981 |
|
982 |
int |
983 |
poll() |
984 |
PROTOTYPE: |
985 |
CODE: |
986 |
poll_wait (); |
987 |
RETVAL = poll_cb (); |
988 |
OUTPUT: |
989 |
RETVAL |
990 |
|
991 |
int |
992 |
poll_fileno() |
993 |
PROTOTYPE: |
994 |
CODE: |
995 |
RETVAL = respipe [0]; |
996 |
OUTPUT: |
997 |
RETVAL |
998 |
|
999 |
int |
1000 |
poll_cb(...) |
1001 |
PROTOTYPE: |
1002 |
CODE: |
1003 |
RETVAL = poll_cb (); |
1004 |
OUTPUT: |
1005 |
RETVAL |
1006 |
|
1007 |
void |
1008 |
poll_wait() |
1009 |
PROTOTYPE: |
1010 |
CODE: |
1011 |
poll_wait (); |
1012 |
|
1013 |
int |
1014 |
nreqs() |
1015 |
PROTOTYPE: |
1016 |
CODE: |
1017 |
RETVAL = eio_nreqs (); |
1018 |
OUTPUT: |
1019 |
RETVAL |
1020 |
|
1021 |
int |
1022 |
nready() |
1023 |
PROTOTYPE: |
1024 |
CODE: |
1025 |
RETVAL = eio_nready (); |
1026 |
OUTPUT: |
1027 |
RETVAL |
1028 |
|
1029 |
int |
1030 |
npending() |
1031 |
PROTOTYPE: |
1032 |
CODE: |
1033 |
RETVAL = eio_npending (); |
1034 |
OUTPUT: |
1035 |
RETVAL |
1036 |
|
1037 |
int |
1038 |
nthreads() |
1039 |
PROTOTYPE: |
1040 |
CODE: |
1041 |
RETVAL = eio_nthreads (); |
1042 |
OUTPUT: |
1043 |
RETVAL |
1044 |
|
1045 |
void _on_next_submit (SV *cb) |
1046 |
CODE: |
1047 |
SvREFCNT_dec (on_next_submit); |
1048 |
on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; |
1049 |
|
1050 |
PROTOTYPES: DISABLE |
1051 |
|
1052 |
MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1053 |
|
1054 |
void |
1055 |
cancel (aio_req_ornot req) |
1056 |
CODE: |
1057 |
eio_cancel (req); |
1058 |
|
1059 |
void |
1060 |
cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
1061 |
PPCODE: |
1062 |
{ |
1063 |
if (GIMME_V != G_VOID) |
1064 |
XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef); |
1065 |
|
1066 |
if (items > 1) |
1067 |
{ |
1068 |
SV *cb_cv = get_cb (callback); |
1069 |
|
1070 |
SvREFCNT_dec (req->callback); |
1071 |
req->callback = SvREFCNT_inc (cb_cv); |
1072 |
} |
1073 |
} |
1074 |
|
1075 |
MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
1076 |
|
1077 |
void |
1078 |
add (aio_req grp, ...) |
1079 |
PPCODE: |
1080 |
{ |
1081 |
int i; |
1082 |
|
1083 |
if (grp->int1 == 2) |
1084 |
croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
1085 |
|
1086 |
for (i = 1; i < items; ++i ) |
1087 |
{ |
1088 |
aio_req req; |
1089 |
|
1090 |
if (GIMME_V != G_VOID) |
1091 |
XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
1092 |
|
1093 |
req = SvAIO_REQ (ST (i)); |
1094 |
|
1095 |
if (req) |
1096 |
eio_grp_add (grp, req); |
1097 |
} |
1098 |
} |
1099 |
|
1100 |
void |
1101 |
cancel_subs (aio_req_ornot req) |
1102 |
CODE: |
1103 |
req_cancel_subs (req); |
1104 |
|
1105 |
void |
1106 |
result (aio_req grp, ...) |
1107 |
CODE: |
1108 |
{ |
1109 |
int i; |
1110 |
AV *av; |
1111 |
|
1112 |
grp->errorno = errno; |
1113 |
|
1114 |
av = newAV (); |
1115 |
|
1116 |
for (i = 1; i < items; ++i ) |
1117 |
av_push (av, newSVsv (ST (i))); |
1118 |
|
1119 |
SvREFCNT_dec (grp->sv1); |
1120 |
grp->sv1 = (SV *)av; |
1121 |
} |
1122 |
|
1123 |
void |
1124 |
errno (aio_req grp, int errorno = errno) |
1125 |
CODE: |
1126 |
grp->errorno = errorno; |
1127 |
|
1128 |
void |
1129 |
limit (aio_req grp, int limit) |
1130 |
CODE: |
1131 |
eio_grp_limit (grp, limit); |
1132 |
|
1133 |
void |
1134 |
feed (aio_req grp, SV *callback=&PL_sv_undef) |
1135 |
CODE: |
1136 |
{ |
1137 |
SvREFCNT_dec (grp->sv2); |
1138 |
grp->sv2 = newSVsv (callback); |
1139 |
|
1140 |
if (grp->int2 <= 0) |
1141 |
grp->int2 = 2; |
1142 |
|
1143 |
eio_grp_limit (grp, grp->int2); |
1144 |
} |
1145 |
|