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 "schmorp.h" |
10 |
|
11 |
#include <stddef.h> |
12 |
#include <stdlib.h> |
13 |
#include <errno.h> |
14 |
#include <sys/types.h> |
15 |
#include <sys/stat.h> |
16 |
#include <limits.h> |
17 |
#include <fcntl.h> |
18 |
#include <sched.h> |
19 |
|
20 |
/* perl namespace pollution */ |
21 |
#undef VERSION |
22 |
|
23 |
#ifdef _WIN32 |
24 |
|
25 |
# define EIO_STRUCT_DIRENT Direntry_t |
26 |
# undef malloc |
27 |
# undef free |
28 |
|
29 |
// perl overrides all those nice win32 functions |
30 |
# undef open |
31 |
# undef read |
32 |
# undef write |
33 |
# undef send |
34 |
# undef recv |
35 |
# undef stat |
36 |
# undef fstat |
37 |
# define lstat stat |
38 |
# undef truncate |
39 |
# undef ftruncate |
40 |
# undef open |
41 |
# undef close |
42 |
# undef unlink |
43 |
# undef rmdir |
44 |
# undef rename |
45 |
# undef lseek |
46 |
|
47 |
# define chown(a,b,c) (errno = ENOSYS, -1) |
48 |
# define fchown(a,b,c) (errno = ENOSYS, -1) |
49 |
# define fchmod(a,b) (errno = ENOSYS, -1) |
50 |
# define symlink(a,b) (errno = ENOSYS, -1) |
51 |
# define readlink(a,b,c) (errno = ENOSYS, -1) |
52 |
# define mknod(a,b,c) (errno = ENOSYS, -1) |
53 |
# define truncate(a,b) (errno = ENOSYS, -1) |
54 |
# define ftruncate(fd,o) chsize ((fd), (o)) |
55 |
# define fsync(fd) _commit (fd) |
56 |
# define opendir(fd) (errno = ENOSYS, 0) |
57 |
# define readdir(fd) (errno = ENOSYS, -1) |
58 |
# define closedir(fd) (errno = ENOSYS, -1) |
59 |
# define mkdir(a,b) mkdir (a) |
60 |
|
61 |
#else |
62 |
|
63 |
# include <sys/time.h> |
64 |
# include <sys/select.h> |
65 |
# include <unistd.h> |
66 |
# include <utime.h> |
67 |
# include <signal.h> |
68 |
# define EIO_STRUCT_DIRENT struct dirent |
69 |
|
70 |
#endif |
71 |
|
72 |
/* perl stupidly overrides readdir and maybe others */ |
73 |
/* with thread-unsafe versions, imagine that :( */ |
74 |
#undef readdir |
75 |
#undef opendir |
76 |
#undef closedir |
77 |
|
78 |
#define EIO_STRUCT_STAT Stat_t |
79 |
|
80 |
/* use NV for 32 bit perls as it allows larger offsets */ |
81 |
#if IVSIZE >= 8 |
82 |
# define VAL64 IV |
83 |
# define SvVAL64 SvIV |
84 |
# define newSVval64 newSViv |
85 |
#else |
86 |
# define VAL64 NV |
87 |
# define SvVAL64 SvNV |
88 |
# define newSVval64 newSVnv |
89 |
#endif |
90 |
|
91 |
/*****************************************************************************/ |
92 |
|
93 |
#if __GNUC__ >= 3 |
94 |
# define expect(expr,value) __builtin_expect ((expr),(value)) |
95 |
#else |
96 |
# define expect(expr,value) (expr) |
97 |
#endif |
98 |
|
99 |
#define expect_false(expr) expect ((expr) != 0, 0) |
100 |
#define expect_true(expr) expect ((expr) != 0, 1) |
101 |
|
102 |
/*****************************************************************************/ |
103 |
|
104 |
typedef SV SV8; /* byte-sv, used for argument-checking */ |
105 |
typedef int aio_rfd; /* read file desriptor */ |
106 |
typedef int aio_wfd; /* write file descriptor */ |
107 |
|
108 |
static HV *aio_stash, *aio_req_stash, *aio_grp_stash; |
109 |
|
110 |
#define EIO_REQ_MEMBERS \ |
111 |
SV *callback; \ |
112 |
SV *sv1, *sv2; \ |
113 |
STRLEN stroffset; \ |
114 |
SV *self; |
115 |
|
116 |
#define EIO_NO_WRAPPERS 1 |
117 |
|
118 |
#include "libeio/eio.h" |
119 |
|
120 |
#ifndef POSIX_FADV_NORMAL |
121 |
# define POSIX_FADV_NORMAL 0 |
122 |
# define NO_FADVISE 1 |
123 |
#endif |
124 |
|
125 |
#ifndef POSIX_FADV_SEQUENTIAL |
126 |
# define POSIX_FADV_SEQUENTIAL 0 |
127 |
#endif |
128 |
|
129 |
#ifndef POSIX_FADV_RANDOM |
130 |
# define POSIX_FADV_RANDOM 0 |
131 |
#endif |
132 |
|
133 |
#ifndef POSIX_FADV_NOREUSE |
134 |
# define POSIX_FADV_NOREUSE 0 |
135 |
#endif |
136 |
|
137 |
#ifndef POSIX_FADV_WILLNEED |
138 |
# define POSIX_FADV_WILLNEED 0 |
139 |
#endif |
140 |
|
141 |
#ifndef POSIX_FADV_DONTNEED |
142 |
# define POSIX_FADV_DONTNEED 0 |
143 |
#endif |
144 |
|
145 |
static int req_invoke (eio_req *req); |
146 |
#define EIO_FINISH(req) req_invoke (req) |
147 |
static void req_destroy (eio_req *grp); |
148 |
#define EIO_DESTROY(req) req_destroy (req) |
149 |
|
150 |
enum { |
151 |
FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ |
152 |
}; |
153 |
|
154 |
#include "libeio/eio.c" |
155 |
|
156 |
typedef eio_req *aio_req; |
157 |
typedef eio_req *aio_req_ornot; |
158 |
|
159 |
static SV *on_next_submit; |
160 |
static int next_pri = EIO_PRI_DEFAULT; |
161 |
static int max_outstanding; |
162 |
|
163 |
static s_epipe respipe; |
164 |
|
165 |
static void req_destroy (aio_req req); |
166 |
static void req_cancel (aio_req req); |
167 |
|
168 |
static void want_poll (void) |
169 |
{ |
170 |
/* write a dummy byte to the pipe so fh becomes ready */ |
171 |
s_epipe_signal (&respipe); |
172 |
} |
173 |
|
174 |
static void done_poll (void) |
175 |
{ |
176 |
/* read any signals sent by the worker threads */ |
177 |
s_epipe_drain (&respipe); |
178 |
} |
179 |
|
180 |
/* must be called at most once */ |
181 |
static SV *req_sv (aio_req req, HV *stash) |
182 |
{ |
183 |
if (!req->self) |
184 |
{ |
185 |
req->self = (SV *)newHV (); |
186 |
sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
187 |
} |
188 |
|
189 |
return sv_2mortal (sv_bless (newRV_inc (req->self), stash)); |
190 |
} |
191 |
|
192 |
static aio_req SvAIO_REQ (SV *sv) |
193 |
{ |
194 |
MAGIC *mg; |
195 |
|
196 |
if (!SvROK (sv) |
197 |
|| (SvSTASH (SvRV (sv)) != aio_grp_stash |
198 |
&& SvSTASH (SvRV (sv)) != aio_req_stash |
199 |
&& !sv_derived_from (sv, "IO::AIO::REQ"))) |
200 |
croak ("object of class IO::AIO::REQ expected"); |
201 |
|
202 |
mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
203 |
|
204 |
return mg ? (aio_req)mg->mg_ptr : 0; |
205 |
} |
206 |
|
207 |
static void aio_grp_feed (aio_req grp) |
208 |
{ |
209 |
if (grp->sv2 && SvOK (grp->sv2)) |
210 |
{ |
211 |
dSP; |
212 |
|
213 |
ENTER; |
214 |
SAVETMPS; |
215 |
PUSHMARK (SP); |
216 |
XPUSHs (req_sv (grp, aio_grp_stash)); |
217 |
PUTBACK; |
218 |
call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); |
219 |
SPAGAIN; |
220 |
FREETMPS; |
221 |
LEAVE; |
222 |
} |
223 |
} |
224 |
|
225 |
static void req_submit (eio_req *req) |
226 |
{ |
227 |
eio_submit (req); |
228 |
|
229 |
if (expect_false (on_next_submit)) |
230 |
{ |
231 |
dSP; |
232 |
SV *cb = sv_2mortal (on_next_submit); |
233 |
|
234 |
on_next_submit = 0; |
235 |
|
236 |
PUSHMARK (SP); |
237 |
PUTBACK; |
238 |
call_sv (cb, G_DISCARD | G_EVAL); |
239 |
} |
240 |
} |
241 |
|
242 |
static int req_invoke (eio_req *req) |
243 |
{ |
244 |
dSP; |
245 |
|
246 |
if (req->flags & FLAG_SV2_RO_OFF) |
247 |
SvREADONLY_off (req->sv2); |
248 |
|
249 |
if (!EIO_CANCELLED (req) && req->callback) |
250 |
{ |
251 |
ENTER; |
252 |
SAVETMPS; |
253 |
PUSHMARK (SP); |
254 |
EXTEND (SP, 1); |
255 |
|
256 |
switch (req->type) |
257 |
{ |
258 |
case EIO_READDIR: |
259 |
{ |
260 |
SV *rv = &PL_sv_undef; |
261 |
|
262 |
if (req->result >= 0) |
263 |
{ |
264 |
int i; |
265 |
char *names = (char *)req->ptr2; |
266 |
eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */ |
267 |
AV *av = newAV (); |
268 |
|
269 |
av_extend (av, req->result - 1); |
270 |
|
271 |
for (i = 0; i < req->result; ++i) |
272 |
{ |
273 |
if (req->int1 & EIO_READDIR_DENTS) |
274 |
{ |
275 |
SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen); |
276 |
|
277 |
if (req->int1 & EIO_READDIR_CUSTOM2) |
278 |
{ |
279 |
static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */ |
280 |
AV *avent = newAV (); |
281 |
|
282 |
av_extend (avent, 2); |
283 |
|
284 |
if (!sv_type [ent->type]) |
285 |
{ |
286 |
sv_type [ent->type] = newSViv (ent->type); |
287 |
SvREADONLY_on (sv_type [ent->type]); |
288 |
} |
289 |
|
290 |
av_store (avent, 0, namesv); |
291 |
av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type])); |
292 |
av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode)); |
293 |
|
294 |
av_store (av, i, newRV_noinc ((SV *)avent)); |
295 |
} |
296 |
else |
297 |
av_store (av, i, namesv); |
298 |
|
299 |
++ent; |
300 |
} |
301 |
else |
302 |
{ |
303 |
SV *name = newSVpv (names, 0); |
304 |
av_store (av, i, name); |
305 |
names += SvCUR (name) + 1; |
306 |
} |
307 |
} |
308 |
|
309 |
rv = sv_2mortal (newRV_noinc ((SV *)av)); |
310 |
} |
311 |
|
312 |
PUSHs (rv); |
313 |
|
314 |
if (req->int1 & EIO_READDIR_CUSTOM1) |
315 |
XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2)))); |
316 |
} |
317 |
break; |
318 |
|
319 |
case EIO_OPEN: |
320 |
{ |
321 |
/* convert fd to fh */ |
322 |
SV *fh = &PL_sv_undef; |
323 |
|
324 |
if (req->result >= 0) |
325 |
{ |
326 |
GV *gv = (GV *)sv_newmortal (); |
327 |
int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); |
328 |
char sym [64]; |
329 |
int symlen; |
330 |
|
331 |
symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result); |
332 |
gv_init (gv, aio_stash, sym, symlen, 0); |
333 |
|
334 |
symlen = snprintf ( |
335 |
sym, |
336 |
sizeof (sym), |
337 |
"%s&=%d", |
338 |
flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", |
339 |
(int)req->result |
340 |
); |
341 |
|
342 |
if (do_open (gv, sym, symlen, 0, 0, 0, 0)) |
343 |
fh = (SV *)gv; |
344 |
} |
345 |
|
346 |
PUSHs (fh); |
347 |
} |
348 |
break; |
349 |
|
350 |
case EIO_GROUP: |
351 |
req->int1 = 2; /* mark group as finished */ |
352 |
|
353 |
if (req->sv1) |
354 |
{ |
355 |
int i; |
356 |
AV *av = (AV *)req->sv1; |
357 |
|
358 |
EXTEND (SP, AvFILL (av) + 1); |
359 |
for (i = 0; i <= AvFILL (av); ++i) |
360 |
PUSHs (*av_fetch (av, i, 0)); |
361 |
} |
362 |
break; |
363 |
|
364 |
case EIO_NOP: |
365 |
case EIO_BUSY: |
366 |
break; |
367 |
|
368 |
case EIO_READLINK: |
369 |
if (req->result > 0) |
370 |
PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result))); |
371 |
break; |
372 |
|
373 |
case EIO_STAT: |
374 |
case EIO_LSTAT: |
375 |
case EIO_FSTAT: |
376 |
PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; |
377 |
PL_laststatval = req->result; |
378 |
PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); |
379 |
PUSHs (sv_2mortal (newSViv (req->result))); |
380 |
break; |
381 |
|
382 |
case EIO_READ: |
383 |
{ |
384 |
SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); |
385 |
*SvEND (req->sv2) = 0; |
386 |
SvPOK_only (req->sv2); |
387 |
SvSETMAGIC (req->sv2); |
388 |
PUSHs (sv_2mortal (newSViv (req->result))); |
389 |
} |
390 |
break; |
391 |
|
392 |
case EIO_DUP2: |
393 |
if (req->result > 0) |
394 |
req->result = 0; |
395 |
/* FALLTHROUGH */ |
396 |
|
397 |
default: |
398 |
PUSHs (sv_2mortal (newSViv (req->result))); |
399 |
break; |
400 |
} |
401 |
|
402 |
errno = req->errorno; |
403 |
|
404 |
PUTBACK; |
405 |
call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); |
406 |
SPAGAIN; |
407 |
|
408 |
FREETMPS; |
409 |
LEAVE; |
410 |
|
411 |
PUTBACK; |
412 |
} |
413 |
|
414 |
return !!SvTRUE (ERRSV); |
415 |
} |
416 |
|
417 |
static void req_destroy (aio_req req) |
418 |
{ |
419 |
if (req->self) |
420 |
{ |
421 |
sv_unmagic (req->self, PERL_MAGIC_ext); |
422 |
SvREFCNT_dec (req->self); |
423 |
} |
424 |
|
425 |
SvREFCNT_dec (req->sv1); |
426 |
SvREFCNT_dec (req->sv2); |
427 |
SvREFCNT_dec (req->callback); |
428 |
|
429 |
Safefree (req); |
430 |
} |
431 |
|
432 |
static void req_cancel_subs (aio_req grp) |
433 |
{ |
434 |
aio_req sub; |
435 |
|
436 |
if (grp->type != EIO_GROUP) |
437 |
return; |
438 |
|
439 |
SvREFCNT_dec (grp->sv2); |
440 |
grp->sv2 = 0; |
441 |
|
442 |
eio_grp_cancel (grp); |
443 |
} |
444 |
|
445 |
static void |
446 |
create_respipe (void) |
447 |
{ |
448 |
if (s_epipe_renew (&respipe)) |
449 |
croak ("IO::AIO: unable to initialize result pipe"); |
450 |
} |
451 |
|
452 |
static void poll_wait (void) |
453 |
{ |
454 |
while (eio_nreqs ()) |
455 |
{ |
456 |
int size; |
457 |
|
458 |
X_LOCK (reslock); |
459 |
size = res_queue.size; |
460 |
X_UNLOCK (reslock); |
461 |
|
462 |
if (size) |
463 |
return; |
464 |
|
465 |
etp_maybe_start_thread (); |
466 |
|
467 |
s_epipe_wait (&respipe); |
468 |
} |
469 |
} |
470 |
|
471 |
static int poll_cb (void) |
472 |
{ |
473 |
for (;;) |
474 |
{ |
475 |
int res = eio_poll (); |
476 |
|
477 |
if (res > 0) |
478 |
croak (0); |
479 |
|
480 |
if (!max_outstanding || max_outstanding > eio_nreqs ()) |
481 |
return res; |
482 |
|
483 |
poll_wait (); |
484 |
} |
485 |
} |
486 |
|
487 |
static void atfork_child (void) |
488 |
{ |
489 |
create_respipe (); |
490 |
} |
491 |
|
492 |
static SV * |
493 |
get_cb (SV *cb_sv) |
494 |
{ |
495 |
SvGETMAGIC (cb_sv); |
496 |
return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0; |
497 |
} |
498 |
|
499 |
#define dREQ \ |
500 |
SV *cb_cv; \ |
501 |
aio_req req; \ |
502 |
int req_pri = next_pri; \ |
503 |
next_pri = EIO_PRI_DEFAULT; \ |
504 |
\ |
505 |
cb_cv = get_cb (callback); \ |
506 |
\ |
507 |
Newz (0, req, 1, eio_req); \ |
508 |
if (!req) \ |
509 |
croak ("out of memory during eio_req allocation"); \ |
510 |
\ |
511 |
req->callback = SvREFCNT_inc (cb_cv); \ |
512 |
req->pri = req_pri |
513 |
|
514 |
#define REQ_SEND \ |
515 |
PUTBACK; \ |
516 |
req_submit (req); \ |
517 |
SPAGAIN; \ |
518 |
\ |
519 |
if (GIMME_V != G_VOID) \ |
520 |
XPUSHs (req_sv (req, aio_req_stash)); |
521 |
|
522 |
MODULE = IO::AIO PACKAGE = IO::AIO |
523 |
|
524 |
PROTOTYPES: ENABLE |
525 |
|
526 |
BOOT: |
527 |
{ |
528 |
static const struct { |
529 |
const char *name; |
530 |
IV iv; |
531 |
} *civ, const_iv[] = { |
532 |
# define const_iv(name, value) { # name, (IV) value }, |
533 |
# define const_eio(name) { # name, (IV) EIO_ ## name }, |
534 |
const_iv (EXDEV , EXDEV) |
535 |
const_iv (ENOSYS , ENOSYS) |
536 |
const_iv (O_RDONLY, O_RDONLY) |
537 |
const_iv (O_WRONLY, O_WRONLY) |
538 |
const_iv (O_CREAT , O_CREAT) |
539 |
const_iv (O_TRUNC , O_TRUNC) |
540 |
#ifndef _WIN32 |
541 |
const_iv (S_IFIFO , S_IFIFO) |
542 |
#endif |
543 |
const_iv (FADV_NORMAL , POSIX_FADV_NORMAL) |
544 |
const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL) |
545 |
const_iv (FADV_RANDOM , POSIX_FADV_RANDOM) |
546 |
const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE) |
547 |
const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED) |
548 |
const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED) |
549 |
|
550 |
const_eio (SYNC_FILE_RANGE_WAIT_BEFORE) |
551 |
const_eio (SYNC_FILE_RANGE_WRITE) |
552 |
const_eio (SYNC_FILE_RANGE_WAIT_AFTER) |
553 |
|
554 |
const_eio (READDIR_DENTS) |
555 |
const_eio (READDIR_DIRS_FIRST) |
556 |
const_eio (READDIR_STAT_ORDER) |
557 |
const_eio (READDIR_FOUND_UNKNOWN) |
558 |
|
559 |
const_eio (DT_UNKNOWN) |
560 |
const_eio (DT_FIFO) |
561 |
const_eio (DT_CHR) |
562 |
const_eio (DT_DIR) |
563 |
const_eio (DT_BLK) |
564 |
const_eio (DT_REG) |
565 |
const_eio (DT_LNK) |
566 |
const_eio (DT_SOCK) |
567 |
const_eio (DT_WHT) |
568 |
}; |
569 |
|
570 |
aio_stash = gv_stashpv ("IO::AIO" , 1); |
571 |
aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1); |
572 |
aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1); |
573 |
|
574 |
for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) |
575 |
newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv)); |
576 |
|
577 |
create_respipe (); |
578 |
|
579 |
if (eio_init (want_poll, done_poll) < 0) |
580 |
croak ("IO::AIO: unable to initialise eio library"); |
581 |
|
582 |
/* atfork child called in fifo order, so before eio's handler */ |
583 |
X_THREAD_ATFORK (0, 0, atfork_child); |
584 |
} |
585 |
|
586 |
void |
587 |
max_poll_reqs (int nreqs) |
588 |
PROTOTYPE: $ |
589 |
CODE: |
590 |
eio_set_max_poll_reqs (nreqs); |
591 |
|
592 |
void |
593 |
max_poll_time (double nseconds) |
594 |
PROTOTYPE: $ |
595 |
CODE: |
596 |
eio_set_max_poll_time (nseconds); |
597 |
|
598 |
void |
599 |
min_parallel (int nthreads) |
600 |
PROTOTYPE: $ |
601 |
CODE: |
602 |
eio_set_min_parallel (nthreads); |
603 |
|
604 |
void |
605 |
max_parallel (int nthreads) |
606 |
PROTOTYPE: $ |
607 |
CODE: |
608 |
eio_set_max_parallel (nthreads); |
609 |
|
610 |
void |
611 |
max_idle (int nthreads) |
612 |
PROTOTYPE: $ |
613 |
CODE: |
614 |
eio_set_max_idle (nthreads); |
615 |
|
616 |
void |
617 |
max_outstanding (int maxreqs) |
618 |
PROTOTYPE: $ |
619 |
CODE: |
620 |
max_outstanding = maxreqs; |
621 |
|
622 |
void |
623 |
aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) |
624 |
PROTOTYPE: $$$;$ |
625 |
PPCODE: |
626 |
{ |
627 |
dREQ; |
628 |
|
629 |
req->type = EIO_OPEN; |
630 |
req->sv1 = newSVsv (pathname); |
631 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
632 |
req->int1 = flags; |
633 |
req->int2 = mode; |
634 |
|
635 |
REQ_SEND; |
636 |
} |
637 |
|
638 |
void |
639 |
aio_fsync (SV *fh, SV *callback=&PL_sv_undef) |
640 |
PROTOTYPE: $;$ |
641 |
ALIAS: |
642 |
aio_fsync = EIO_FSYNC |
643 |
aio_fdatasync = EIO_FDATASYNC |
644 |
PPCODE: |
645 |
{ |
646 |
int fd = s_fileno_croak (fh, 0); |
647 |
dREQ; |
648 |
|
649 |
req->type = ix; |
650 |
req->sv1 = newSVsv (fh); |
651 |
req->int1 = fd; |
652 |
|
653 |
REQ_SEND (req); |
654 |
} |
655 |
|
656 |
void |
657 |
aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) |
658 |
PROTOTYPE: $$$$;$ |
659 |
PPCODE: |
660 |
{ |
661 |
int fd = s_fileno_croak (fh, 0); |
662 |
dREQ; |
663 |
|
664 |
req->type = EIO_SYNC_FILE_RANGE; |
665 |
req->sv1 = newSVsv (fh); |
666 |
req->int1 = fd; |
667 |
req->offs = offset; |
668 |
req->size = nbytes; |
669 |
req->int2 = flags; |
670 |
|
671 |
REQ_SEND (req); |
672 |
} |
673 |
|
674 |
void |
675 |
aio_close (SV *fh, SV *callback=&PL_sv_undef) |
676 |
PROTOTYPE: $;$ |
677 |
PPCODE: |
678 |
{ |
679 |
static int close_pipe = -1; /* dummy fd to close fds via dup2 */ |
680 |
int fd = s_fileno_croak (fh, 0); |
681 |
dREQ; |
682 |
|
683 |
if (close_pipe < 0) |
684 |
{ |
685 |
int pipefd [2]; |
686 |
|
687 |
if (pipe (pipefd) < 0 |
688 |
|| close (pipefd [1]) < 0 |
689 |
|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0) |
690 |
abort (); /*D*/ |
691 |
|
692 |
close_pipe = pipefd [0]; |
693 |
} |
694 |
|
695 |
req->type = EIO_DUP2; |
696 |
req->int1 = close_pipe; |
697 |
req->sv2 = newSVsv (fh); |
698 |
req->int2 = fd; |
699 |
|
700 |
REQ_SEND (req); |
701 |
} |
702 |
|
703 |
void |
704 |
aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) |
705 |
ALIAS: |
706 |
aio_read = EIO_READ |
707 |
aio_write = EIO_WRITE |
708 |
PROTOTYPE: $$$$$;$ |
709 |
PPCODE: |
710 |
{ |
711 |
STRLEN svlen; |
712 |
int fd = s_fileno_croak (fh, ix == EIO_WRITE); |
713 |
char *svptr = SvPVbyte (data, svlen); |
714 |
UV len = SvUV (length); |
715 |
|
716 |
if (dataoffset < 0) |
717 |
dataoffset += svlen; |
718 |
|
719 |
if (dataoffset < 0 || dataoffset > svlen) |
720 |
croak ("dataoffset outside of data scalar"); |
721 |
|
722 |
if (ix == EIO_WRITE) |
723 |
{ |
724 |
/* write: check length and adjust. */ |
725 |
if (!SvOK (length) || len + dataoffset > svlen) |
726 |
len = svlen - dataoffset; |
727 |
} |
728 |
else |
729 |
{ |
730 |
/* read: check type and grow scalar as necessary */ |
731 |
SvUPGRADE (data, SVt_PV); |
732 |
svptr = SvGROW (data, len + dataoffset + 1); |
733 |
} |
734 |
|
735 |
{ |
736 |
dREQ; |
737 |
|
738 |
req->type = ix; |
739 |
req->sv1 = newSVsv (fh); |
740 |
req->int1 = fd; |
741 |
req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
742 |
req->size = len; |
743 |
req->sv2 = SvREFCNT_inc (data); |
744 |
req->ptr2 = (char *)svptr + dataoffset; |
745 |
req->stroffset = dataoffset; |
746 |
|
747 |
if (!SvREADONLY (data)) |
748 |
{ |
749 |
SvREADONLY_on (data); |
750 |
req->flags |= FLAG_SV2_RO_OFF; |
751 |
} |
752 |
|
753 |
REQ_SEND; |
754 |
} |
755 |
} |
756 |
|
757 |
void |
758 |
aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) |
759 |
PROTOTYPE: $$;$ |
760 |
PPCODE: |
761 |
{ |
762 |
SV *data; |
763 |
dREQ; |
764 |
|
765 |
req->type = EIO_READLINK; |
766 |
req->sv1 = newSVsv (path); |
767 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
768 |
|
769 |
REQ_SEND; |
770 |
} |
771 |
|
772 |
void |
773 |
aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef) |
774 |
PROTOTYPE: $$$$;$ |
775 |
PPCODE: |
776 |
{ |
777 |
int ifd = s_fileno_croak (in_fh , 0); |
778 |
int ofd = s_fileno_croak (out_fh, 1); |
779 |
dREQ; |
780 |
|
781 |
req->type = EIO_SENDFILE; |
782 |
req->sv1 = newSVsv (out_fh); |
783 |
req->int1 = ofd; |
784 |
req->sv2 = newSVsv (in_fh); |
785 |
req->int2 = ifd; |
786 |
req->offs = in_offset; |
787 |
req->size = length; |
788 |
|
789 |
REQ_SEND; |
790 |
} |
791 |
|
792 |
void |
793 |
aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) |
794 |
PROTOTYPE: $$$;$ |
795 |
PPCODE: |
796 |
{ |
797 |
int fd = s_fileno_croak (fh, 0); |
798 |
dREQ; |
799 |
|
800 |
req->type = EIO_READAHEAD; |
801 |
req->sv1 = newSVsv (fh); |
802 |
req->int1 = fd; |
803 |
req->offs = offset; |
804 |
req->size = length; |
805 |
|
806 |
REQ_SEND; |
807 |
} |
808 |
|
809 |
void |
810 |
aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) |
811 |
ALIAS: |
812 |
aio_stat = EIO_STAT |
813 |
aio_lstat = EIO_LSTAT |
814 |
PPCODE: |
815 |
{ |
816 |
dREQ; |
817 |
|
818 |
req->sv1 = newSVsv (fh_or_path); |
819 |
|
820 |
if (SvPOK (req->sv1)) |
821 |
{ |
822 |
req->type = ix; |
823 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
824 |
} |
825 |
else |
826 |
{ |
827 |
req->type = EIO_FSTAT; |
828 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
829 |
} |
830 |
|
831 |
REQ_SEND; |
832 |
} |
833 |
|
834 |
void |
835 |
aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) |
836 |
PPCODE: |
837 |
{ |
838 |
dREQ; |
839 |
|
840 |
req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; |
841 |
req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; |
842 |
req->sv1 = newSVsv (fh_or_path); |
843 |
|
844 |
if (SvPOK (req->sv1)) |
845 |
{ |
846 |
req->type = EIO_UTIME; |
847 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
848 |
} |
849 |
else |
850 |
{ |
851 |
req->type = EIO_FUTIME; |
852 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
853 |
} |
854 |
|
855 |
REQ_SEND; |
856 |
} |
857 |
|
858 |
void |
859 |
aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) |
860 |
PPCODE: |
861 |
{ |
862 |
dREQ; |
863 |
|
864 |
req->sv1 = newSVsv (fh_or_path); |
865 |
req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
866 |
|
867 |
if (SvPOK (req->sv1)) |
868 |
{ |
869 |
req->type = EIO_TRUNCATE; |
870 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
871 |
} |
872 |
else |
873 |
{ |
874 |
req->type = EIO_FTRUNCATE; |
875 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
876 |
} |
877 |
|
878 |
REQ_SEND; |
879 |
} |
880 |
|
881 |
void |
882 |
aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) |
883 |
ALIAS: |
884 |
aio_chmod = EIO_CHMOD |
885 |
aio_mkdir = EIO_MKDIR |
886 |
PPCODE: |
887 |
{ |
888 |
dREQ; |
889 |
|
890 |
req->int2 = mode; |
891 |
req->sv1 = newSVsv (fh_or_path); |
892 |
|
893 |
if (SvPOK (req->sv1)) |
894 |
{ |
895 |
req->type = ix; |
896 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
897 |
} |
898 |
else |
899 |
{ |
900 |
req->type = EIO_FCHMOD; |
901 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
902 |
} |
903 |
|
904 |
REQ_SEND; |
905 |
} |
906 |
|
907 |
void |
908 |
aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) |
909 |
PPCODE: |
910 |
{ |
911 |
dREQ; |
912 |
|
913 |
req->int2 = SvOK (uid) ? SvIV (uid) : -1; |
914 |
req->int3 = SvOK (gid) ? SvIV (gid) : -1; |
915 |
req->sv1 = newSVsv (fh_or_path); |
916 |
|
917 |
if (SvPOK (req->sv1)) |
918 |
{ |
919 |
req->type = EIO_CHOWN; |
920 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
921 |
} |
922 |
else |
923 |
{ |
924 |
req->type = EIO_FCHOWN; |
925 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
926 |
} |
927 |
|
928 |
REQ_SEND; |
929 |
} |
930 |
|
931 |
void |
932 |
aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef) |
933 |
PPCODE: |
934 |
{ |
935 |
dREQ; |
936 |
|
937 |
req->type = EIO_READDIR; |
938 |
req->sv1 = newSVsv (pathname); |
939 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
940 |
req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1; |
941 |
|
942 |
if (flags & EIO_READDIR_DENTS) |
943 |
req->int1 |= EIO_READDIR_CUSTOM2; |
944 |
|
945 |
REQ_SEND; |
946 |
} |
947 |
|
948 |
void |
949 |
aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) |
950 |
ALIAS: |
951 |
aio_unlink = EIO_UNLINK |
952 |
aio_rmdir = EIO_RMDIR |
953 |
aio_readdir = EIO_READDIR |
954 |
PPCODE: |
955 |
{ |
956 |
dREQ; |
957 |
|
958 |
req->type = ix; |
959 |
req->sv1 = newSVsv (pathname); |
960 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
961 |
|
962 |
REQ_SEND; |
963 |
} |
964 |
|
965 |
void |
966 |
aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) |
967 |
ALIAS: |
968 |
aio_link = EIO_LINK |
969 |
aio_symlink = EIO_SYMLINK |
970 |
aio_rename = EIO_RENAME |
971 |
PPCODE: |
972 |
{ |
973 |
dREQ; |
974 |
|
975 |
req->type = ix; |
976 |
req->sv1 = newSVsv (oldpath); |
977 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
978 |
req->sv2 = newSVsv (newpath); |
979 |
req->ptr2 = SvPVbyte_nolen (req->sv2); |
980 |
|
981 |
REQ_SEND; |
982 |
} |
983 |
|
984 |
void |
985 |
aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) |
986 |
PPCODE: |
987 |
{ |
988 |
dREQ; |
989 |
|
990 |
req->type = EIO_MKNOD; |
991 |
req->sv1 = newSVsv (pathname); |
992 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
993 |
req->int2 = (mode_t)mode; |
994 |
req->offs = dev; |
995 |
|
996 |
REQ_SEND; |
997 |
} |
998 |
|
999 |
void |
1000 |
aio_busy (double delay, SV *callback=&PL_sv_undef) |
1001 |
PPCODE: |
1002 |
{ |
1003 |
dREQ; |
1004 |
|
1005 |
req->type = EIO_BUSY; |
1006 |
req->nv1 = delay < 0. ? 0. : delay; |
1007 |
|
1008 |
REQ_SEND; |
1009 |
} |
1010 |
|
1011 |
void |
1012 |
aio_group (SV *callback=&PL_sv_undef) |
1013 |
PROTOTYPE: ;$ |
1014 |
PPCODE: |
1015 |
{ |
1016 |
dREQ; |
1017 |
|
1018 |
req->type = EIO_GROUP; |
1019 |
|
1020 |
req_submit (req); |
1021 |
XPUSHs (req_sv (req, aio_grp_stash)); |
1022 |
} |
1023 |
|
1024 |
void |
1025 |
aio_nop (SV *callback=&PL_sv_undef) |
1026 |
ALIAS: |
1027 |
aio_nop = EIO_NOP |
1028 |
aio_sync = EIO_SYNC |
1029 |
PPCODE: |
1030 |
{ |
1031 |
dREQ; |
1032 |
|
1033 |
req->type = ix; |
1034 |
|
1035 |
REQ_SEND; |
1036 |
} |
1037 |
|
1038 |
int |
1039 |
aioreq_pri (int pri = 0) |
1040 |
PROTOTYPE: ;$ |
1041 |
CODE: |
1042 |
RETVAL = next_pri; |
1043 |
if (items > 0) |
1044 |
{ |
1045 |
if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; |
1046 |
if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX; |
1047 |
next_pri = pri; |
1048 |
} |
1049 |
OUTPUT: |
1050 |
RETVAL |
1051 |
|
1052 |
void |
1053 |
aioreq_nice (int nice = 0) |
1054 |
CODE: |
1055 |
nice = next_pri - nice; |
1056 |
if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN; |
1057 |
if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; |
1058 |
next_pri = nice; |
1059 |
|
1060 |
void |
1061 |
flush () |
1062 |
PROTOTYPE: |
1063 |
CODE: |
1064 |
while (eio_nreqs ()) |
1065 |
{ |
1066 |
poll_wait (); |
1067 |
poll_cb (); |
1068 |
} |
1069 |
|
1070 |
int |
1071 |
poll() |
1072 |
PROTOTYPE: |
1073 |
CODE: |
1074 |
poll_wait (); |
1075 |
RETVAL = poll_cb (); |
1076 |
OUTPUT: |
1077 |
RETVAL |
1078 |
|
1079 |
int |
1080 |
poll_fileno() |
1081 |
PROTOTYPE: |
1082 |
CODE: |
1083 |
RETVAL = s_epipe_fd (&respipe); |
1084 |
OUTPUT: |
1085 |
RETVAL |
1086 |
|
1087 |
int |
1088 |
poll_cb(...) |
1089 |
PROTOTYPE: |
1090 |
CODE: |
1091 |
RETVAL = poll_cb (); |
1092 |
OUTPUT: |
1093 |
RETVAL |
1094 |
|
1095 |
void |
1096 |
poll_wait() |
1097 |
PROTOTYPE: |
1098 |
CODE: |
1099 |
poll_wait (); |
1100 |
|
1101 |
int |
1102 |
nreqs() |
1103 |
PROTOTYPE: |
1104 |
CODE: |
1105 |
RETVAL = eio_nreqs (); |
1106 |
OUTPUT: |
1107 |
RETVAL |
1108 |
|
1109 |
int |
1110 |
nready() |
1111 |
PROTOTYPE: |
1112 |
CODE: |
1113 |
RETVAL = eio_nready (); |
1114 |
OUTPUT: |
1115 |
RETVAL |
1116 |
|
1117 |
int |
1118 |
npending() |
1119 |
PROTOTYPE: |
1120 |
CODE: |
1121 |
RETVAL = eio_npending (); |
1122 |
OUTPUT: |
1123 |
RETVAL |
1124 |
|
1125 |
int |
1126 |
nthreads() |
1127 |
PROTOTYPE: |
1128 |
CODE: |
1129 |
RETVAL = eio_nthreads (); |
1130 |
OUTPUT: |
1131 |
RETVAL |
1132 |
|
1133 |
int |
1134 |
fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) |
1135 |
PROTOTYPE: $$$$ |
1136 |
CODE: |
1137 |
#if _XOPEN_SOURCE >= 600 && !NO_FADVISE |
1138 |
RETVAL = posix_fadvise (fh, offset, length, advice); |
1139 |
#else |
1140 |
RETVAL = errno = ENOSYS; |
1141 |
#endif |
1142 |
OUTPUT: |
1143 |
RETVAL |
1144 |
|
1145 |
ssize_t |
1146 |
sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) |
1147 |
PROTOTYPE: $$$$ |
1148 |
CODE: |
1149 |
eio_sendfile_sync (ofh, ifh, offset, count); |
1150 |
|
1151 |
void _on_next_submit (SV *cb) |
1152 |
CODE: |
1153 |
SvREFCNT_dec (on_next_submit); |
1154 |
on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; |
1155 |
|
1156 |
PROTOTYPES: DISABLE |
1157 |
|
1158 |
MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1159 |
|
1160 |
void |
1161 |
cancel (aio_req_ornot req) |
1162 |
CODE: |
1163 |
eio_cancel (req); |
1164 |
|
1165 |
void |
1166 |
cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
1167 |
PPCODE: |
1168 |
{ |
1169 |
if (GIMME_V != G_VOID) |
1170 |
XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef); |
1171 |
|
1172 |
if (items > 1) |
1173 |
{ |
1174 |
SV *cb_cv =get_cb (callback); |
1175 |
|
1176 |
SvREFCNT_dec (req->callback); |
1177 |
req->callback = SvREFCNT_inc (cb_cv); |
1178 |
} |
1179 |
} |
1180 |
|
1181 |
MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
1182 |
|
1183 |
void |
1184 |
add (aio_req grp, ...) |
1185 |
PPCODE: |
1186 |
{ |
1187 |
int i; |
1188 |
|
1189 |
if (grp->int1 == 2) |
1190 |
croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
1191 |
|
1192 |
for (i = 1; i < items; ++i ) |
1193 |
{ |
1194 |
aio_req req; |
1195 |
|
1196 |
if (GIMME_V != G_VOID) |
1197 |
XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
1198 |
|
1199 |
req = SvAIO_REQ (ST (i)); |
1200 |
|
1201 |
if (req) |
1202 |
eio_grp_add (grp, req); |
1203 |
} |
1204 |
} |
1205 |
|
1206 |
void |
1207 |
cancel_subs (aio_req_ornot req) |
1208 |
CODE: |
1209 |
req_cancel_subs (req); |
1210 |
|
1211 |
void |
1212 |
result (aio_req grp, ...) |
1213 |
CODE: |
1214 |
{ |
1215 |
int i; |
1216 |
AV *av; |
1217 |
|
1218 |
grp->errorno = errno; |
1219 |
|
1220 |
av = newAV (); |
1221 |
av_extend (av, items - 1); |
1222 |
|
1223 |
for (i = 1; i < items; ++i ) |
1224 |
av_push (av, newSVsv (ST (i))); |
1225 |
|
1226 |
SvREFCNT_dec (grp->sv1); |
1227 |
grp->sv1 = (SV *)av; |
1228 |
} |
1229 |
|
1230 |
void |
1231 |
errno (aio_req grp, int errorno = errno) |
1232 |
CODE: |
1233 |
grp->errorno = errorno; |
1234 |
|
1235 |
void |
1236 |
limit (aio_req grp, int limit) |
1237 |
CODE: |
1238 |
eio_grp_limit (grp, limit); |
1239 |
|
1240 |
void |
1241 |
feed (aio_req grp, SV *callback=&PL_sv_undef) |
1242 |
CODE: |
1243 |
{ |
1244 |
SvREFCNT_dec (grp->sv2); |
1245 |
grp->sv2 = newSVsv (callback); |
1246 |
grp->feed = aio_grp_feed; |
1247 |
|
1248 |
if (grp->int2 <= 0) |
1249 |
grp->int2 = 2; |
1250 |
|
1251 |
eio_grp_limit (grp, grp->int2); |
1252 |
} |
1253 |
|