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 req_destroy (eio_req *grp); |
117 |
#define EIO_DESTROY(req) req_destroy (req) |
118 |
|
119 |
enum { |
120 |
FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ |
121 |
}; |
122 |
|
123 |
#include "libeio/eio.c" |
124 |
|
125 |
typedef eio_req *aio_req; |
126 |
typedef eio_req *aio_req_ornot; |
127 |
|
128 |
static SV *on_next_submit; |
129 |
static int next_pri = EIO_PRI_DEFAULT; |
130 |
static int max_outstanding; |
131 |
|
132 |
static int respipe_osf [2], respipe [2] = { -1, -1 }; |
133 |
|
134 |
static void req_destroy (aio_req req); |
135 |
static void req_cancel (aio_req req); |
136 |
|
137 |
static void want_poll (void) |
138 |
{ |
139 |
/* write a dummy byte to the pipe so fh becomes ready */ |
140 |
respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1); |
141 |
} |
142 |
|
143 |
static void done_poll (void) |
144 |
{ |
145 |
/* read any signals sent by the worker threads */ |
146 |
char buf [4]; |
147 |
while (respipe_read (respipe [0], buf, 4) == 4) |
148 |
; |
149 |
} |
150 |
|
151 |
/* must be called at most once */ |
152 |
static SV *req_sv (aio_req req, const char *klass) |
153 |
{ |
154 |
if (!req->self) |
155 |
{ |
156 |
req->self = (SV *)newHV (); |
157 |
sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
158 |
} |
159 |
|
160 |
return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); |
161 |
} |
162 |
|
163 |
static aio_req SvAIO_REQ (SV *sv) |
164 |
{ |
165 |
MAGIC *mg; |
166 |
|
167 |
if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) |
168 |
croak ("object of class " AIO_REQ_KLASS " expected"); |
169 |
|
170 |
mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
171 |
|
172 |
return mg ? (aio_req)mg->mg_ptr : 0; |
173 |
} |
174 |
|
175 |
static void aio_grp_feed (aio_req grp) |
176 |
{ |
177 |
if (grp->sv2 && SvOK (grp->sv2)) |
178 |
{ |
179 |
dSP; |
180 |
|
181 |
ENTER; |
182 |
SAVETMPS; |
183 |
PUSHMARK (SP); |
184 |
XPUSHs (req_sv (grp, AIO_GRP_KLASS)); |
185 |
PUTBACK; |
186 |
call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); |
187 |
SPAGAIN; |
188 |
FREETMPS; |
189 |
LEAVE; |
190 |
} |
191 |
} |
192 |
|
193 |
static void req_submit (eio_req *req) |
194 |
{ |
195 |
eio_submit (req); |
196 |
|
197 |
if (expect_false (on_next_submit)) |
198 |
{ |
199 |
dSP; |
200 |
SV *cb = sv_2mortal (on_next_submit); |
201 |
|
202 |
on_next_submit = 0; |
203 |
|
204 |
PUSHMARK (SP); |
205 |
PUTBACK; |
206 |
call_sv (cb, G_DISCARD | G_EVAL); |
207 |
} |
208 |
} |
209 |
|
210 |
static int req_invoke (eio_req *req) |
211 |
{ |
212 |
dSP; |
213 |
|
214 |
if (req->flags & FLAG_SV2_RO_OFF) |
215 |
SvREADONLY_off (req->sv2); |
216 |
|
217 |
if (!EIO_CANCELLED (req) && req->callback) |
218 |
{ |
219 |
ENTER; |
220 |
SAVETMPS; |
221 |
PUSHMARK (SP); |
222 |
EXTEND (SP, 1); |
223 |
|
224 |
switch (req->type) |
225 |
{ |
226 |
case EIO_READDIR: |
227 |
{ |
228 |
SV *rv = &PL_sv_undef; |
229 |
|
230 |
if (req->result >= 0) |
231 |
{ |
232 |
int i; |
233 |
char *buf = req->ptr2; |
234 |
AV *av = newAV (); |
235 |
|
236 |
av_extend (av, req->result - 1); |
237 |
|
238 |
for (i = 0; i < req->result; ++i) |
239 |
{ |
240 |
SV *sv = newSVpv (buf, 0); |
241 |
|
242 |
av_store (av, i, sv); |
243 |
buf += SvCUR (sv) + 1; |
244 |
} |
245 |
|
246 |
rv = sv_2mortal (newRV_noinc ((SV *)av)); |
247 |
} |
248 |
|
249 |
PUSHs (rv); |
250 |
} |
251 |
break; |
252 |
|
253 |
case EIO_OPEN: |
254 |
{ |
255 |
/* convert fd to fh */ |
256 |
SV *fh = &PL_sv_undef; |
257 |
|
258 |
if (req->result >= 0) |
259 |
{ |
260 |
GV *gv = (GV *)sv_newmortal (); |
261 |
int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); |
262 |
char sym [64]; |
263 |
int symlen; |
264 |
|
265 |
symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result); |
266 |
gv_init (gv, stash, sym, symlen, 0); |
267 |
|
268 |
symlen = snprintf ( |
269 |
sym, |
270 |
sizeof (sym), |
271 |
"%s&=%d", |
272 |
flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", |
273 |
req->result |
274 |
); |
275 |
|
276 |
if (do_open (gv, sym, symlen, 0, 0, 0, 0)) |
277 |
fh = (SV *)gv; |
278 |
} |
279 |
|
280 |
PUSHs (fh); |
281 |
} |
282 |
break; |
283 |
|
284 |
case EIO_GROUP: |
285 |
req->int1 = 2; /* mark group as finished */ |
286 |
|
287 |
if (req->sv1) |
288 |
{ |
289 |
int i; |
290 |
AV *av = (AV *)req->sv1; |
291 |
|
292 |
EXTEND (SP, AvFILL (av) + 1); |
293 |
for (i = 0; i <= AvFILL (av); ++i) |
294 |
PUSHs (*av_fetch (av, i, 0)); |
295 |
} |
296 |
break; |
297 |
|
298 |
case EIO_NOP: |
299 |
case EIO_BUSY: |
300 |
break; |
301 |
|
302 |
case EIO_READLINK: |
303 |
if (req->result > 0) |
304 |
PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result))); |
305 |
break; |
306 |
|
307 |
case EIO_STAT: |
308 |
case EIO_LSTAT: |
309 |
case EIO_FSTAT: |
310 |
PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; |
311 |
PL_laststatval = req->result; |
312 |
PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); |
313 |
PUSHs (sv_2mortal (newSViv (req->result))); |
314 |
break; |
315 |
|
316 |
case EIO_READ: |
317 |
{ |
318 |
SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); |
319 |
*SvEND (req->sv2) = 0; |
320 |
SvPOK_only (req->sv2); |
321 |
SvSETMAGIC (req->sv2); |
322 |
PUSHs (sv_2mortal (newSViv (req->result))); |
323 |
} |
324 |
break; |
325 |
|
326 |
case EIO_DUP2: |
327 |
if (req->result > 0) |
328 |
req->result = 0; |
329 |
/* FALLTHROUGH */ |
330 |
|
331 |
default: |
332 |
PUSHs (sv_2mortal (newSViv (req->result))); |
333 |
break; |
334 |
} |
335 |
|
336 |
errno = req->errorno; |
337 |
|
338 |
PUTBACK; |
339 |
call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); |
340 |
SPAGAIN; |
341 |
|
342 |
FREETMPS; |
343 |
LEAVE; |
344 |
|
345 |
PUTBACK; |
346 |
} |
347 |
|
348 |
return !!SvTRUE (ERRSV); |
349 |
} |
350 |
|
351 |
static void req_destroy (aio_req req) |
352 |
{ |
353 |
if (req->self) |
354 |
{ |
355 |
sv_unmagic (req->self, PERL_MAGIC_ext); |
356 |
SvREFCNT_dec (req->self); |
357 |
} |
358 |
|
359 |
SvREFCNT_dec (req->sv1); |
360 |
SvREFCNT_dec (req->sv2); |
361 |
SvREFCNT_dec (req->callback); |
362 |
|
363 |
Safefree (req); |
364 |
} |
365 |
|
366 |
static void req_cancel_subs (aio_req grp) |
367 |
{ |
368 |
aio_req sub; |
369 |
|
370 |
if (grp->type != EIO_GROUP) |
371 |
return; |
372 |
|
373 |
SvREFCNT_dec (grp->sv2); |
374 |
grp->sv2 = 0; |
375 |
|
376 |
eio_grp_cancel (grp); |
377 |
} |
378 |
|
379 |
#ifdef USE_SOCKETS_AS_HANDLES |
380 |
# define TO_SOCKET(x) (win32_get_osfhandle (x)) |
381 |
#else |
382 |
# define TO_SOCKET(x) (x) |
383 |
#endif |
384 |
|
385 |
static void |
386 |
create_respipe (void) |
387 |
{ |
388 |
int old_readfd = respipe [0]; |
389 |
|
390 |
if (respipe [1] >= 0) |
391 |
respipe_close (TO_SOCKET (respipe [1])); |
392 |
|
393 |
#ifdef _WIN32 |
394 |
if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe)) |
395 |
#else |
396 |
if (pipe (respipe)) |
397 |
#endif |
398 |
croak ("unable to initialize result pipe"); |
399 |
|
400 |
if (old_readfd >= 0) |
401 |
{ |
402 |
if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0) |
403 |
croak ("unable to initialize result pipe(2)"); |
404 |
|
405 |
respipe_close (respipe [0]); |
406 |
respipe [0] = old_readfd; |
407 |
} |
408 |
|
409 |
#ifdef _WIN32 |
410 |
int arg = 1; |
411 |
if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg) |
412 |
|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg)) |
413 |
#else |
414 |
if (fcntl (respipe [0], F_SETFL, O_NONBLOCK) |
415 |
|| fcntl (respipe [1], F_SETFL, O_NONBLOCK)) |
416 |
#endif |
417 |
croak ("unable to initialize result pipe(3)"); |
418 |
|
419 |
respipe_osf [0] = TO_SOCKET (respipe [0]); |
420 |
respipe_osf [1] = TO_SOCKET (respipe [1]); |
421 |
} |
422 |
|
423 |
static void poll_wait (void) |
424 |
{ |
425 |
fd_set rfd; |
426 |
|
427 |
while (eio_nreqs ()) |
428 |
{ |
429 |
int size; |
430 |
|
431 |
X_LOCK (reslock); |
432 |
size = res_queue.size; |
433 |
X_UNLOCK (reslock); |
434 |
|
435 |
if (size) |
436 |
return; |
437 |
|
438 |
etp_maybe_start_thread (); |
439 |
|
440 |
FD_ZERO (&rfd); |
441 |
FD_SET (respipe [0], &rfd); |
442 |
|
443 |
PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0); |
444 |
} |
445 |
} |
446 |
|
447 |
static int poll_cb (void) |
448 |
{ |
449 |
for (;;) |
450 |
{ |
451 |
int res = eio_poll (); |
452 |
|
453 |
if (res > 0) |
454 |
croak (0); |
455 |
|
456 |
if (!max_outstanding || max_outstanding > eio_nreqs ()) |
457 |
return res; |
458 |
|
459 |
poll_wait (); |
460 |
} |
461 |
} |
462 |
|
463 |
static void atfork_child (void) |
464 |
{ |
465 |
create_respipe (); |
466 |
} |
467 |
|
468 |
static SV * |
469 |
get_cb (SV *cb_sv) |
470 |
{ |
471 |
HV *st; |
472 |
GV *gvp; |
473 |
CV *cv; |
474 |
|
475 |
if (!SvOK (cb_sv)) |
476 |
return 0; |
477 |
|
478 |
cv = sv_2cv (cb_sv, &st, &gvp, 0); |
479 |
|
480 |
if (!cv) |
481 |
croak ("IO::AIO callback must be undef or a CODE reference"); |
482 |
|
483 |
return (SV *)cv; |
484 |
} |
485 |
|
486 |
#define dREQ \ |
487 |
SV *cb_cv; \ |
488 |
aio_req req; \ |
489 |
int req_pri = next_pri; \ |
490 |
next_pri = EIO_PRI_DEFAULT; \ |
491 |
\ |
492 |
cb_cv = get_cb (callback); \ |
493 |
\ |
494 |
Newz (0, req, 1, eio_req); \ |
495 |
if (!req) \ |
496 |
croak ("out of memory during eio_req allocation"); \ |
497 |
\ |
498 |
req->callback = SvREFCNT_inc (cb_cv); \ |
499 |
req->pri = req_pri |
500 |
|
501 |
#define REQ_SEND \ |
502 |
PUTBACK; \ |
503 |
req_submit (req); \ |
504 |
SPAGAIN; \ |
505 |
\ |
506 |
if (GIMME_V != G_VOID) \ |
507 |
XPUSHs (req_sv (req, AIO_REQ_KLASS)); |
508 |
|
509 |
static int |
510 |
extract_fd (SV *fh, int wr) |
511 |
{ |
512 |
int fd = PerlIO_fileno (wr ? IoOFP (sv_2io (fh)) : IoIFP (sv_2io (fh))); |
513 |
|
514 |
if (fd < 0) |
515 |
croak ("illegal fh argument, either not an OS file or read/write mode mismatch"); |
516 |
|
517 |
return fd; |
518 |
} |
519 |
|
520 |
MODULE = IO::AIO PACKAGE = IO::AIO |
521 |
|
522 |
PROTOTYPES: ENABLE |
523 |
|
524 |
BOOT: |
525 |
{ |
526 |
stash = gv_stashpv ("IO::AIO", 1); |
527 |
|
528 |
newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); |
529 |
newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); |
530 |
newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY)); |
531 |
newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT)); |
532 |
newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC)); |
533 |
#ifndef _WIN32 |
534 |
newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
535 |
#endif |
536 |
newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO)); |
537 |
newCONSTSUB (stash, "SYNC_FILE_RANGE_WAIT_BEFORE", newSViv (EIO_SYNC_FILE_RANGE_WAIT_BEFORE)); |
538 |
newCONSTSUB (stash, "SYNC_FILE_RANGE_WRITE" , newSViv (EIO_SYNC_FILE_RANGE_WRITE)); |
539 |
newCONSTSUB (stash, "SYNC_FILE_RANGE_WAIT_AFTER" , newSViv (EIO_SYNC_FILE_RANGE_WAIT_AFTER)); |
540 |
|
541 |
create_respipe (); |
542 |
|
543 |
if (eio_init (want_poll, done_poll) < 0) |
544 |
croak ("IO::AIO: unable to initialise eio library"); |
545 |
|
546 |
/* atfork child called in fifo order, so before eio's handler */ |
547 |
X_THREAD_ATFORK (0, 0, atfork_child); |
548 |
} |
549 |
|
550 |
void |
551 |
max_poll_reqs (int nreqs) |
552 |
PROTOTYPE: $ |
553 |
CODE: |
554 |
eio_set_max_poll_reqs (nreqs); |
555 |
|
556 |
void |
557 |
max_poll_time (double nseconds) |
558 |
PROTOTYPE: $ |
559 |
CODE: |
560 |
eio_set_max_poll_time (nseconds); |
561 |
|
562 |
void |
563 |
min_parallel (int nthreads) |
564 |
PROTOTYPE: $ |
565 |
CODE: |
566 |
eio_set_min_parallel (nthreads); |
567 |
|
568 |
void |
569 |
max_parallel (int nthreads) |
570 |
PROTOTYPE: $ |
571 |
CODE: |
572 |
eio_set_max_parallel (nthreads); |
573 |
|
574 |
void |
575 |
max_idle (int nthreads) |
576 |
PROTOTYPE: $ |
577 |
CODE: |
578 |
eio_set_max_idle (nthreads); |
579 |
|
580 |
void |
581 |
max_outstanding (int maxreqs) |
582 |
PROTOTYPE: $ |
583 |
CODE: |
584 |
max_outstanding = maxreqs; |
585 |
|
586 |
void |
587 |
aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) |
588 |
PROTOTYPE: $$$;$ |
589 |
PPCODE: |
590 |
{ |
591 |
dREQ; |
592 |
|
593 |
req->type = EIO_OPEN; |
594 |
req->sv1 = newSVsv (pathname); |
595 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
596 |
req->int1 = flags; |
597 |
req->int2 = mode; |
598 |
|
599 |
REQ_SEND; |
600 |
} |
601 |
|
602 |
void |
603 |
aio_fsync (SV *fh, SV *callback=&PL_sv_undef) |
604 |
PROTOTYPE: $;$ |
605 |
ALIAS: |
606 |
aio_fsync = EIO_FSYNC |
607 |
aio_fdatasync = EIO_FDATASYNC |
608 |
PPCODE: |
609 |
{ |
610 |
int fd = extract_fd (fh, 0); |
611 |
dREQ; |
612 |
|
613 |
req->type = ix; |
614 |
req->sv1 = newSVsv (fh); |
615 |
req->int1 = fd; |
616 |
|
617 |
REQ_SEND (req); |
618 |
} |
619 |
|
620 |
void |
621 |
aio_sync_file_range (SV *fh, SV *offset, SV *nbytes, IV flags, SV *callback=&PL_sv_undef) |
622 |
PROTOTYPE: $$$$;$ |
623 |
PPCODE: |
624 |
{ |
625 |
int fd = extract_fd (fh, 0); |
626 |
dREQ; |
627 |
|
628 |
req->type = EIO_SYNC_FILE_RANGE; |
629 |
req->sv1 = newSVsv (fh); |
630 |
req->int1 = fd; |
631 |
req->offs = SvVAL64 (offset); |
632 |
req->size = SvVAL64 (nbytes); |
633 |
req->int2 = flags; |
634 |
|
635 |
REQ_SEND (req); |
636 |
} |
637 |
|
638 |
void |
639 |
aio_close (SV *fh, SV *callback=&PL_sv_undef) |
640 |
PROTOTYPE: $;$ |
641 |
PPCODE: |
642 |
{ |
643 |
static int close_pipe = -1; /* dummy fd to close fds via dup2 */ |
644 |
int fd = extract_fd (fh, 0); |
645 |
dREQ; |
646 |
|
647 |
if (close_pipe < 0) |
648 |
{ |
649 |
int pipefd [2]; |
650 |
|
651 |
if (pipe (pipefd) < 0 |
652 |
|| close (pipefd [1]) < 0 |
653 |
|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0) |
654 |
abort (); /*D*/ |
655 |
|
656 |
close_pipe = pipefd [0]; |
657 |
} |
658 |
|
659 |
req->type = EIO_DUP2; |
660 |
req->int1 = close_pipe; |
661 |
req->sv2 = newSVsv (fh); |
662 |
req->int2 = fd; |
663 |
|
664 |
REQ_SEND (req); |
665 |
} |
666 |
|
667 |
void |
668 |
aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) |
669 |
ALIAS: |
670 |
aio_read = EIO_READ |
671 |
aio_write = EIO_WRITE |
672 |
PROTOTYPE: $$$$$;$ |
673 |
PPCODE: |
674 |
{ |
675 |
STRLEN svlen; |
676 |
int fd = extract_fd (fh, ix == EIO_WRITE); |
677 |
char *svptr = SvPVbyte (data, svlen); |
678 |
UV len = SvUV (length); |
679 |
|
680 |
if (dataoffset < 0) |
681 |
dataoffset += svlen; |
682 |
|
683 |
if (dataoffset < 0 || dataoffset > svlen) |
684 |
croak ("dataoffset outside of data scalar"); |
685 |
|
686 |
if (ix == EIO_WRITE) |
687 |
{ |
688 |
/* write: check length and adjust. */ |
689 |
if (!SvOK (length) || len + dataoffset > svlen) |
690 |
len = svlen - dataoffset; |
691 |
} |
692 |
else |
693 |
{ |
694 |
/* read: check type and grow scalar as necessary */ |
695 |
SvUPGRADE (data, SVt_PV); |
696 |
svptr = SvGROW (data, len + dataoffset + 1); |
697 |
} |
698 |
|
699 |
if (len < 0) |
700 |
croak ("length must not be negative"); |
701 |
|
702 |
{ |
703 |
dREQ; |
704 |
|
705 |
req->type = ix; |
706 |
req->sv1 = newSVsv (fh); |
707 |
req->int1 = fd; |
708 |
req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
709 |
req->size = len; |
710 |
req->sv2 = SvREFCNT_inc (data); |
711 |
req->ptr2 = (char *)svptr + dataoffset; |
712 |
req->stroffset = dataoffset; |
713 |
|
714 |
if (!SvREADONLY (data)) |
715 |
{ |
716 |
SvREADONLY_on (data); |
717 |
req->flags |= FLAG_SV2_RO_OFF; |
718 |
} |
719 |
|
720 |
REQ_SEND; |
721 |
} |
722 |
} |
723 |
|
724 |
void |
725 |
aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) |
726 |
PROTOTYPE: $$;$ |
727 |
PPCODE: |
728 |
{ |
729 |
SV *data; |
730 |
dREQ; |
731 |
|
732 |
req->type = EIO_READLINK; |
733 |
req->sv1 = newSVsv (path); |
734 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
735 |
|
736 |
REQ_SEND; |
737 |
} |
738 |
|
739 |
void |
740 |
aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef) |
741 |
PROTOTYPE: $$$$;$ |
742 |
PPCODE: |
743 |
{ |
744 |
int ifd = extract_fd (in_fh , 0); |
745 |
int ofd = extract_fd (out_fh, 0); |
746 |
dREQ; |
747 |
|
748 |
req->type = EIO_SENDFILE; |
749 |
req->sv1 = newSVsv (out_fh); |
750 |
req->int1 = ofd; |
751 |
req->sv2 = newSVsv (in_fh); |
752 |
req->int2 = ifd; |
753 |
req->offs = SvVAL64 (in_offset); |
754 |
req->size = length; |
755 |
|
756 |
REQ_SEND; |
757 |
} |
758 |
|
759 |
void |
760 |
aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef) |
761 |
PROTOTYPE: $$$;$ |
762 |
PPCODE: |
763 |
{ |
764 |
int fd = extract_fd (fh, 0); |
765 |
dREQ; |
766 |
|
767 |
req->type = EIO_READAHEAD; |
768 |
req->sv1 = newSVsv (fh); |
769 |
req->int1 = fd; |
770 |
req->offs = SvVAL64 (offset); |
771 |
req->size = length; |
772 |
|
773 |
REQ_SEND; |
774 |
} |
775 |
|
776 |
void |
777 |
aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) |
778 |
ALIAS: |
779 |
aio_stat = EIO_STAT |
780 |
aio_lstat = EIO_LSTAT |
781 |
PPCODE: |
782 |
{ |
783 |
dREQ; |
784 |
|
785 |
req->sv1 = newSVsv (fh_or_path); |
786 |
|
787 |
if (SvPOK (req->sv1)) |
788 |
{ |
789 |
req->type = ix; |
790 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
791 |
} |
792 |
else |
793 |
{ |
794 |
req->type = EIO_FSTAT; |
795 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
796 |
} |
797 |
|
798 |
REQ_SEND; |
799 |
} |
800 |
|
801 |
void |
802 |
aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) |
803 |
PPCODE: |
804 |
{ |
805 |
dREQ; |
806 |
|
807 |
req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; |
808 |
req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; |
809 |
req->sv1 = newSVsv (fh_or_path); |
810 |
|
811 |
if (SvPOK (req->sv1)) |
812 |
{ |
813 |
req->type = EIO_UTIME; |
814 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
815 |
} |
816 |
else |
817 |
{ |
818 |
req->type = EIO_FUTIME; |
819 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
820 |
} |
821 |
|
822 |
REQ_SEND; |
823 |
} |
824 |
|
825 |
void |
826 |
aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) |
827 |
PPCODE: |
828 |
{ |
829 |
dREQ; |
830 |
|
831 |
req->sv1 = newSVsv (fh_or_path); |
832 |
req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
833 |
|
834 |
if (SvPOK (req->sv1)) |
835 |
{ |
836 |
req->type = EIO_TRUNCATE; |
837 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
838 |
} |
839 |
else |
840 |
{ |
841 |
req->type = EIO_FTRUNCATE; |
842 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
843 |
} |
844 |
|
845 |
REQ_SEND; |
846 |
} |
847 |
|
848 |
void |
849 |
aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) |
850 |
ALIAS: |
851 |
aio_chmod = EIO_CHMOD |
852 |
aio_mkdir = EIO_MKDIR |
853 |
PPCODE: |
854 |
{ |
855 |
dREQ; |
856 |
|
857 |
req->int2 = mode; |
858 |
req->sv1 = newSVsv (fh_or_path); |
859 |
|
860 |
if (SvPOK (req->sv1)) |
861 |
{ |
862 |
req->type = ix; |
863 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
864 |
} |
865 |
else |
866 |
{ |
867 |
req->type = EIO_FCHMOD; |
868 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
869 |
} |
870 |
|
871 |
REQ_SEND; |
872 |
} |
873 |
|
874 |
void |
875 |
aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) |
876 |
PPCODE: |
877 |
{ |
878 |
dREQ; |
879 |
|
880 |
req->int2 = SvOK (uid) ? SvIV (uid) : -1; |
881 |
req->int3 = SvOK (gid) ? SvIV (gid) : -1; |
882 |
req->sv1 = newSVsv (fh_or_path); |
883 |
|
884 |
if (SvPOK (req->sv1)) |
885 |
{ |
886 |
req->type = EIO_CHOWN; |
887 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
888 |
} |
889 |
else |
890 |
{ |
891 |
req->type = EIO_FCHOWN; |
892 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
893 |
} |
894 |
|
895 |
REQ_SEND; |
896 |
} |
897 |
|
898 |
void |
899 |
aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) |
900 |
ALIAS: |
901 |
aio_unlink = EIO_UNLINK |
902 |
aio_rmdir = EIO_RMDIR |
903 |
aio_readdir = EIO_READDIR |
904 |
PPCODE: |
905 |
{ |
906 |
dREQ; |
907 |
|
908 |
req->type = ix; |
909 |
req->sv1 = newSVsv (pathname); |
910 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
911 |
|
912 |
REQ_SEND; |
913 |
} |
914 |
|
915 |
void |
916 |
aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) |
917 |
ALIAS: |
918 |
aio_link = EIO_LINK |
919 |
aio_symlink = EIO_SYMLINK |
920 |
aio_rename = EIO_RENAME |
921 |
PPCODE: |
922 |
{ |
923 |
dREQ; |
924 |
|
925 |
req->type = ix; |
926 |
req->sv1 = newSVsv (oldpath); |
927 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
928 |
req->sv2 = newSVsv (newpath); |
929 |
req->ptr2 = SvPVbyte_nolen (req->sv2); |
930 |
|
931 |
REQ_SEND; |
932 |
} |
933 |
|
934 |
void |
935 |
aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) |
936 |
PPCODE: |
937 |
{ |
938 |
dREQ; |
939 |
|
940 |
req->type = EIO_MKNOD; |
941 |
req->sv1 = newSVsv (pathname); |
942 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
943 |
req->int2 = (mode_t)mode; |
944 |
req->offs = dev; |
945 |
|
946 |
REQ_SEND; |
947 |
} |
948 |
|
949 |
void |
950 |
aio_busy (double delay, SV *callback=&PL_sv_undef) |
951 |
PPCODE: |
952 |
{ |
953 |
dREQ; |
954 |
|
955 |
req->type = EIO_BUSY; |
956 |
req->nv1 = delay < 0. ? 0. : delay; |
957 |
|
958 |
REQ_SEND; |
959 |
} |
960 |
|
961 |
void |
962 |
aio_group (SV *callback=&PL_sv_undef) |
963 |
PROTOTYPE: ;$ |
964 |
PPCODE: |
965 |
{ |
966 |
dREQ; |
967 |
|
968 |
req->type = EIO_GROUP; |
969 |
|
970 |
req_submit (req); |
971 |
XPUSHs (req_sv (req, AIO_GRP_KLASS)); |
972 |
} |
973 |
|
974 |
void |
975 |
aio_nop (SV *callback=&PL_sv_undef) |
976 |
ALIAS: |
977 |
aio_nop = EIO_NOP |
978 |
aio_sync = EIO_SYNC |
979 |
PPCODE: |
980 |
{ |
981 |
dREQ; |
982 |
|
983 |
req->type = ix; |
984 |
|
985 |
REQ_SEND; |
986 |
} |
987 |
|
988 |
int |
989 |
aioreq_pri (int pri = 0) |
990 |
PROTOTYPE: ;$ |
991 |
CODE: |
992 |
RETVAL = next_pri; |
993 |
if (items > 0) |
994 |
{ |
995 |
if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; |
996 |
if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX; |
997 |
next_pri = pri; |
998 |
} |
999 |
OUTPUT: |
1000 |
RETVAL |
1001 |
|
1002 |
void |
1003 |
aioreq_nice (int nice = 0) |
1004 |
CODE: |
1005 |
nice = next_pri - nice; |
1006 |
if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN; |
1007 |
if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; |
1008 |
next_pri = nice; |
1009 |
|
1010 |
void |
1011 |
flush () |
1012 |
PROTOTYPE: |
1013 |
CODE: |
1014 |
while (eio_nreqs ()) |
1015 |
{ |
1016 |
poll_wait (); |
1017 |
poll_cb (); |
1018 |
} |
1019 |
|
1020 |
int |
1021 |
poll() |
1022 |
PROTOTYPE: |
1023 |
CODE: |
1024 |
poll_wait (); |
1025 |
RETVAL = poll_cb (); |
1026 |
OUTPUT: |
1027 |
RETVAL |
1028 |
|
1029 |
int |
1030 |
poll_fileno() |
1031 |
PROTOTYPE: |
1032 |
CODE: |
1033 |
RETVAL = respipe [0]; |
1034 |
OUTPUT: |
1035 |
RETVAL |
1036 |
|
1037 |
int |
1038 |
poll_cb(...) |
1039 |
PROTOTYPE: |
1040 |
CODE: |
1041 |
RETVAL = poll_cb (); |
1042 |
OUTPUT: |
1043 |
RETVAL |
1044 |
|
1045 |
void |
1046 |
poll_wait() |
1047 |
PROTOTYPE: |
1048 |
CODE: |
1049 |
poll_wait (); |
1050 |
|
1051 |
int |
1052 |
nreqs() |
1053 |
PROTOTYPE: |
1054 |
CODE: |
1055 |
RETVAL = eio_nreqs (); |
1056 |
OUTPUT: |
1057 |
RETVAL |
1058 |
|
1059 |
int |
1060 |
nready() |
1061 |
PROTOTYPE: |
1062 |
CODE: |
1063 |
RETVAL = eio_nready (); |
1064 |
OUTPUT: |
1065 |
RETVAL |
1066 |
|
1067 |
int |
1068 |
npending() |
1069 |
PROTOTYPE: |
1070 |
CODE: |
1071 |
RETVAL = eio_npending (); |
1072 |
OUTPUT: |
1073 |
RETVAL |
1074 |
|
1075 |
int |
1076 |
nthreads() |
1077 |
PROTOTYPE: |
1078 |
CODE: |
1079 |
RETVAL = eio_nthreads (); |
1080 |
OUTPUT: |
1081 |
RETVAL |
1082 |
|
1083 |
void _on_next_submit (SV *cb) |
1084 |
CODE: |
1085 |
SvREFCNT_dec (on_next_submit); |
1086 |
on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; |
1087 |
|
1088 |
PROTOTYPES: DISABLE |
1089 |
|
1090 |
MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1091 |
|
1092 |
void |
1093 |
cancel (aio_req_ornot req) |
1094 |
CODE: |
1095 |
eio_cancel (req); |
1096 |
|
1097 |
void |
1098 |
cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
1099 |
PPCODE: |
1100 |
{ |
1101 |
if (GIMME_V != G_VOID) |
1102 |
XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef); |
1103 |
|
1104 |
if (items > 1) |
1105 |
{ |
1106 |
SV *cb_cv = get_cb (callback); |
1107 |
|
1108 |
SvREFCNT_dec (req->callback); |
1109 |
req->callback = SvREFCNT_inc (cb_cv); |
1110 |
} |
1111 |
} |
1112 |
|
1113 |
MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
1114 |
|
1115 |
void |
1116 |
add (aio_req grp, ...) |
1117 |
PPCODE: |
1118 |
{ |
1119 |
int i; |
1120 |
|
1121 |
if (grp->int1 == 2) |
1122 |
croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
1123 |
|
1124 |
for (i = 1; i < items; ++i ) |
1125 |
{ |
1126 |
aio_req req; |
1127 |
|
1128 |
if (GIMME_V != G_VOID) |
1129 |
XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
1130 |
|
1131 |
req = SvAIO_REQ (ST (i)); |
1132 |
|
1133 |
if (req) |
1134 |
eio_grp_add (grp, req); |
1135 |
} |
1136 |
} |
1137 |
|
1138 |
void |
1139 |
cancel_subs (aio_req_ornot req) |
1140 |
CODE: |
1141 |
req_cancel_subs (req); |
1142 |
|
1143 |
void |
1144 |
result (aio_req grp, ...) |
1145 |
CODE: |
1146 |
{ |
1147 |
int i; |
1148 |
AV *av; |
1149 |
|
1150 |
grp->errorno = errno; |
1151 |
|
1152 |
av = newAV (); |
1153 |
|
1154 |
for (i = 1; i < items; ++i ) |
1155 |
av_push (av, newSVsv (ST (i))); |
1156 |
|
1157 |
SvREFCNT_dec (grp->sv1); |
1158 |
grp->sv1 = (SV *)av; |
1159 |
} |
1160 |
|
1161 |
void |
1162 |
errno (aio_req grp, int errorno = errno) |
1163 |
CODE: |
1164 |
grp->errorno = errorno; |
1165 |
|
1166 |
void |
1167 |
limit (aio_req grp, int limit) |
1168 |
CODE: |
1169 |
eio_grp_limit (grp, limit); |
1170 |
|
1171 |
void |
1172 |
feed (aio_req grp, SV *callback=&PL_sv_undef) |
1173 |
CODE: |
1174 |
{ |
1175 |
SvREFCNT_dec (grp->sv2); |
1176 |
grp->sv2 = newSVsv (callback); |
1177 |
grp->feed = aio_grp_feed; |
1178 |
|
1179 |
if (grp->int2 <= 0) |
1180 |
grp->int2 = 2; |
1181 |
|
1182 |
eio_grp_limit (grp, grp->int2); |
1183 |
} |
1184 |
|