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 <sys/statvfs.h> |
17 |
#include <limits.h> |
18 |
#include <fcntl.h> |
19 |
#include <sched.h> |
20 |
|
21 |
#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES |
22 |
# include <sys/mman.h> |
23 |
#endif |
24 |
|
25 |
/* perl namespace pollution */ |
26 |
#undef VERSION |
27 |
|
28 |
#ifdef _WIN32 |
29 |
|
30 |
# define EIO_STRUCT_DIRENT Direntry_t |
31 |
# undef malloc |
32 |
# undef free |
33 |
|
34 |
// perl overrides all those nice win32 functions |
35 |
# undef open |
36 |
# undef read |
37 |
# undef write |
38 |
# undef send |
39 |
# undef recv |
40 |
# undef stat |
41 |
# undef fstat |
42 |
# define lstat stat |
43 |
# undef truncate |
44 |
# undef ftruncate |
45 |
# undef open |
46 |
# undef close |
47 |
# undef unlink |
48 |
# undef rmdir |
49 |
# undef rename |
50 |
# undef lseek |
51 |
|
52 |
# define chown(a,b,c) (errno = ENOSYS, -1) |
53 |
# define fchown(a,b,c) (errno = ENOSYS, -1) |
54 |
# define fchmod(a,b) (errno = ENOSYS, -1) |
55 |
# define symlink(a,b) (errno = ENOSYS, -1) |
56 |
# define readlink(a,b,c) (errno = ENOSYS, -1) |
57 |
# define mknod(a,b,c) (errno = ENOSYS, -1) |
58 |
# define truncate(a,b) (errno = ENOSYS, -1) |
59 |
# define ftruncate(fd,o) chsize ((fd), (o)) |
60 |
# define fsync(fd) _commit (fd) |
61 |
# define opendir(fd) (errno = ENOSYS, 0) |
62 |
# define readdir(fd) (errno = ENOSYS, -1) |
63 |
# define closedir(fd) (errno = ENOSYS, -1) |
64 |
# define mkdir(a,b) mkdir (a) |
65 |
|
66 |
#else |
67 |
|
68 |
# include <sys/time.h> |
69 |
# include <sys/select.h> |
70 |
# include <unistd.h> |
71 |
# include <utime.h> |
72 |
# include <signal.h> |
73 |
# define EIO_STRUCT_DIRENT struct dirent |
74 |
|
75 |
#endif |
76 |
|
77 |
/* perl stupidly overrides readdir and maybe others */ |
78 |
/* with thread-unsafe versions, imagine that :( */ |
79 |
#undef readdir |
80 |
#undef opendir |
81 |
#undef closedir |
82 |
|
83 |
#define EIO_STRUCT_STAT Stat_t |
84 |
|
85 |
/* use NV for 32 bit perls as it allows larger offsets */ |
86 |
#if IVSIZE >= 8 |
87 |
# define VAL64 IV |
88 |
# define SvVAL64 SvIV |
89 |
# define newSVval64 newSViv |
90 |
#else |
91 |
# define VAL64 NV |
92 |
# define SvVAL64 SvNV |
93 |
# define newSVval64 newSVnv |
94 |
#endif |
95 |
|
96 |
/*****************************************************************************/ |
97 |
|
98 |
#if __GNUC__ >= 3 |
99 |
# define expect(expr,value) __builtin_expect ((expr),(value)) |
100 |
#else |
101 |
# define expect(expr,value) (expr) |
102 |
#endif |
103 |
|
104 |
#define expect_false(expr) expect ((expr) != 0, 0) |
105 |
#define expect_true(expr) expect ((expr) != 0, 1) |
106 |
|
107 |
/*****************************************************************************/ |
108 |
|
109 |
typedef SV SV8; /* byte-sv, used for argument-checking */ |
110 |
typedef int aio_rfd; /* read file desriptor */ |
111 |
typedef int aio_wfd; /* write file descriptor */ |
112 |
|
113 |
static HV *aio_stash, *aio_req_stash, *aio_grp_stash; |
114 |
|
115 |
#define EIO_REQ_MEMBERS \ |
116 |
SV *callback; \ |
117 |
SV *sv1, *sv2; \ |
118 |
STRLEN stroffset; \ |
119 |
SV *self; |
120 |
|
121 |
#define EIO_NO_WRAPPERS 1 |
122 |
|
123 |
#include "libeio/eio.h" |
124 |
|
125 |
#ifndef POSIX_FADV_NORMAL |
126 |
# define POSIX_FADV_NORMAL 0 |
127 |
# define NO_FADVISE 1 |
128 |
#endif |
129 |
#ifndef POSIX_FADV_SEQUENTIAL |
130 |
# define POSIX_FADV_SEQUENTIAL 0 |
131 |
#endif |
132 |
#ifndef POSIX_FADV_RANDOM |
133 |
# define POSIX_FADV_RANDOM 0 |
134 |
#endif |
135 |
#ifndef POSIX_FADV_NOREUSE |
136 |
# define POSIX_FADV_NOREUSE 0 |
137 |
#endif |
138 |
#ifndef POSIX_FADV_WILLNEED |
139 |
# define POSIX_FADV_WILLNEED 0 |
140 |
#endif |
141 |
#ifndef POSIX_FADV_DONTNEED |
142 |
# define POSIX_FADV_DONTNEED 0 |
143 |
#endif |
144 |
|
145 |
#ifndef POSIX_MADV_NORMAL |
146 |
# define POSIX_MADV_NORMAL 0 |
147 |
# define NO_MADVISE 1 |
148 |
#endif |
149 |
#ifndef POSIX_MADV_SEQUENTIAL |
150 |
# define POSIX_MADV_SEQUENTIAL 0 |
151 |
#endif |
152 |
#ifndef POSIX_MADV_RANDOM |
153 |
# define POSIX_MADV_RANDOM 0 |
154 |
#endif |
155 |
#ifndef POSIX_MADV_WILLNEED |
156 |
# define POSIX_MADV_WILLNEED 0 |
157 |
#endif |
158 |
#ifndef POSIX_MADV_DONTNEED |
159 |
# define POSIX_MADV_DONTNEED 0 |
160 |
#endif |
161 |
|
162 |
#ifndef ST_NODEV |
163 |
# define ST_NODEV 0 |
164 |
#endif |
165 |
#ifndef ST_NOEXEC |
166 |
# define ST_NOEXEC 0 |
167 |
#endif |
168 |
#ifndef ST_SYNCHRONOUS |
169 |
# define ST_SYNCHRONOUS 0 |
170 |
#endif |
171 |
#ifndef ST_MANDLOCK |
172 |
# define ST_MANDLOCK 0 |
173 |
#endif |
174 |
#ifndef ST_WRITE |
175 |
# define ST_WRITE 0 |
176 |
#endif |
177 |
#ifndef ST_APPEND |
178 |
# define ST_APPEND 0 |
179 |
#endif |
180 |
#ifndef ST_IMMUTABLE |
181 |
# define ST_IMMUTABLE 0 |
182 |
#endif |
183 |
#ifndef ST_NOATIME |
184 |
# define ST_NOATIME 0 |
185 |
#endif |
186 |
#ifndef ST_NODIRATIME |
187 |
# define ST_NODIRATIME 0 |
188 |
#endif |
189 |
#ifndef ST_RELATIME |
190 |
# define ST_RELATIME 0 |
191 |
#endif |
192 |
|
193 |
#ifndef MCL_CURRENT |
194 |
# define MCL_CURRENT 0 |
195 |
#endif |
196 |
#ifndef MCL_FUTURE |
197 |
# define MCL_FUTURE 0 |
198 |
#endif |
199 |
|
200 |
#ifndef MAP_ANONYMOUS |
201 |
# ifdef MAP_ANON |
202 |
# define MAP_ANONYMOUS MAP_ANON |
203 |
# else |
204 |
# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */ |
205 |
# endif |
206 |
#endif |
207 |
#ifndef MAP_HUGETLB |
208 |
# define MAP_HUGETLB 0 |
209 |
#endif |
210 |
#ifndef MAP_LOCKED |
211 |
# define MAP_LOCKED 0 |
212 |
#endif |
213 |
#ifndef MAP_NORESERVE |
214 |
# define MAP_NORESERVE 0 |
215 |
#endif |
216 |
#ifndef MAP_POPULATE |
217 |
# define MAP_POPULATE 0 |
218 |
#endif |
219 |
#ifndef MAP_NONBLOCK |
220 |
# define MAP_NONBLOCK 0 |
221 |
#endif |
222 |
|
223 |
#ifndef PAGESIZE |
224 |
# define PAGESIZE sysconf (_SC_PAGESIZE) |
225 |
#endif |
226 |
|
227 |
static int req_invoke (eio_req *req); |
228 |
#define EIO_FINISH(req) req_invoke (req) |
229 |
static void req_destroy (eio_req *grp); |
230 |
#define EIO_DESTROY(req) req_destroy (req) |
231 |
|
232 |
enum { |
233 |
FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ |
234 |
}; |
235 |
|
236 |
#include "libeio/eio.c" |
237 |
|
238 |
typedef eio_req *aio_req; |
239 |
typedef eio_req *aio_req_ornot; |
240 |
|
241 |
static SV *on_next_submit; |
242 |
static int next_pri = EIO_PRI_DEFAULT; |
243 |
static int max_outstanding; |
244 |
|
245 |
static s_epipe respipe; |
246 |
|
247 |
static void req_destroy (aio_req req); |
248 |
static void req_cancel (aio_req req); |
249 |
|
250 |
static void want_poll (void) |
251 |
{ |
252 |
/* write a dummy byte to the pipe so fh becomes ready */ |
253 |
s_epipe_signal (&respipe); |
254 |
} |
255 |
|
256 |
static void done_poll (void) |
257 |
{ |
258 |
/* read any signals sent by the worker threads */ |
259 |
s_epipe_drain (&respipe); |
260 |
} |
261 |
|
262 |
/* must be called at most once */ |
263 |
static SV *req_sv (aio_req req, HV *stash) |
264 |
{ |
265 |
if (!req->self) |
266 |
{ |
267 |
req->self = (SV *)newHV (); |
268 |
sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
269 |
} |
270 |
|
271 |
return sv_2mortal (sv_bless (newRV_inc (req->self), stash)); |
272 |
} |
273 |
|
274 |
static aio_req SvAIO_REQ (SV *sv) |
275 |
{ |
276 |
MAGIC *mg; |
277 |
|
278 |
if (!SvROK (sv) |
279 |
|| (SvSTASH (SvRV (sv)) != aio_grp_stash |
280 |
&& SvSTASH (SvRV (sv)) != aio_req_stash |
281 |
&& !sv_derived_from (sv, "IO::AIO::REQ"))) |
282 |
croak ("object of class IO::AIO::REQ expected"); |
283 |
|
284 |
mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
285 |
|
286 |
return mg ? (aio_req)mg->mg_ptr : 0; |
287 |
} |
288 |
|
289 |
static void aio_grp_feed (aio_req grp) |
290 |
{ |
291 |
if (grp->sv2 && SvOK (grp->sv2)) |
292 |
{ |
293 |
dSP; |
294 |
|
295 |
ENTER; |
296 |
SAVETMPS; |
297 |
PUSHMARK (SP); |
298 |
XPUSHs (req_sv (grp, aio_grp_stash)); |
299 |
PUTBACK; |
300 |
call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); |
301 |
SPAGAIN; |
302 |
FREETMPS; |
303 |
LEAVE; |
304 |
} |
305 |
} |
306 |
|
307 |
static void req_submit (eio_req *req) |
308 |
{ |
309 |
eio_submit (req); |
310 |
|
311 |
if (expect_false (on_next_submit)) |
312 |
{ |
313 |
dSP; |
314 |
SV *cb = sv_2mortal (on_next_submit); |
315 |
|
316 |
on_next_submit = 0; |
317 |
|
318 |
PUSHMARK (SP); |
319 |
PUTBACK; |
320 |
call_sv (cb, G_DISCARD | G_EVAL); |
321 |
} |
322 |
} |
323 |
|
324 |
static int req_invoke (eio_req *req) |
325 |
{ |
326 |
if (req->flags & FLAG_SV2_RO_OFF) |
327 |
SvREADONLY_off (req->sv2); |
328 |
|
329 |
if (!EIO_CANCELLED (req) && req->callback) |
330 |
{ |
331 |
dSP; |
332 |
static SV *sv_result_cache; /* caches the result integer SV */ |
333 |
SV *sv_result; |
334 |
|
335 |
ENTER; |
336 |
SAVETMPS; |
337 |
PUSHMARK (SP); |
338 |
EXTEND (SP, 1); |
339 |
|
340 |
/* do not recreate the result IV from scratch each time */ |
341 |
if (expect_true (sv_result_cache)) |
342 |
{ |
343 |
sv_result = sv_result_cache; sv_result_cache = 0; |
344 |
SvIV_set (sv_result, req->result); |
345 |
} |
346 |
else |
347 |
{ |
348 |
sv_result = newSViv (req->result); |
349 |
SvREADONLY_on (sv_result); |
350 |
} |
351 |
|
352 |
switch (req->type) |
353 |
{ |
354 |
case EIO_READDIR: |
355 |
{ |
356 |
SV *rv = &PL_sv_undef; |
357 |
|
358 |
if (req->result >= 0) |
359 |
{ |
360 |
int i; |
361 |
char *names = (char *)req->ptr2; |
362 |
eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */ |
363 |
AV *av = newAV (); |
364 |
|
365 |
av_extend (av, req->result - 1); |
366 |
|
367 |
for (i = 0; i < req->result; ++i) |
368 |
{ |
369 |
if (req->int1 & EIO_READDIR_DENTS) |
370 |
{ |
371 |
SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen); |
372 |
|
373 |
if (req->int1 & EIO_READDIR_CUSTOM2) |
374 |
{ |
375 |
static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */ |
376 |
AV *avent = newAV (); |
377 |
|
378 |
av_extend (avent, 2); |
379 |
|
380 |
if (!sv_type [ent->type]) |
381 |
{ |
382 |
sv_type [ent->type] = newSViv (ent->type); |
383 |
SvREADONLY_on (sv_type [ent->type]); |
384 |
} |
385 |
|
386 |
av_store (avent, 0, namesv); |
387 |
av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type])); |
388 |
av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode)); |
389 |
|
390 |
av_store (av, i, newRV_noinc ((SV *)avent)); |
391 |
} |
392 |
else |
393 |
av_store (av, i, namesv); |
394 |
|
395 |
++ent; |
396 |
} |
397 |
else |
398 |
{ |
399 |
SV *name = newSVpv (names, 0); |
400 |
av_store (av, i, name); |
401 |
names += SvCUR (name) + 1; |
402 |
} |
403 |
} |
404 |
|
405 |
rv = sv_2mortal (newRV_noinc ((SV *)av)); |
406 |
} |
407 |
|
408 |
PUSHs (rv); |
409 |
|
410 |
if (req->int1 & EIO_READDIR_CUSTOM1) |
411 |
XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2)))); |
412 |
} |
413 |
break; |
414 |
|
415 |
case EIO_OPEN: |
416 |
{ |
417 |
/* convert fd to fh */ |
418 |
SV *fh = &PL_sv_undef; |
419 |
|
420 |
if (req->result >= 0) |
421 |
{ |
422 |
GV *gv = (GV *)sv_newmortal (); |
423 |
int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); |
424 |
char sym [64]; |
425 |
int symlen; |
426 |
|
427 |
symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result); |
428 |
gv_init (gv, aio_stash, sym, symlen, 0); |
429 |
|
430 |
symlen = snprintf ( |
431 |
sym, |
432 |
sizeof (sym), |
433 |
"%s&=%d", |
434 |
flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", |
435 |
(int)req->result |
436 |
); |
437 |
|
438 |
if (do_open (gv, sym, symlen, 0, 0, 0, 0)) |
439 |
fh = (SV *)gv; |
440 |
} |
441 |
|
442 |
PUSHs (fh); |
443 |
} |
444 |
break; |
445 |
|
446 |
case EIO_STATVFS: |
447 |
case EIO_FSTATVFS: |
448 |
{ |
449 |
SV *rv = &PL_sv_undef; |
450 |
|
451 |
if (req->result >= 0) |
452 |
{ |
453 |
EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req); |
454 |
HV *hv = newHV (); |
455 |
|
456 |
rv = sv_2mortal (newRV_noinc ((SV *)hv)); |
457 |
|
458 |
hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0); |
459 |
hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0); |
460 |
hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0); |
461 |
hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0); |
462 |
hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0); |
463 |
hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0); |
464 |
hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0); |
465 |
hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0); |
466 |
hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0); |
467 |
hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0); |
468 |
hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0); |
469 |
} |
470 |
|
471 |
PUSHs (rv); |
472 |
} |
473 |
|
474 |
break; |
475 |
|
476 |
case EIO_GROUP: |
477 |
req->int1 = 2; /* mark group as finished */ |
478 |
|
479 |
if (req->sv1) |
480 |
{ |
481 |
int i; |
482 |
AV *av = (AV *)req->sv1; |
483 |
|
484 |
EXTEND (SP, AvFILL (av) + 1); |
485 |
for (i = 0; i <= AvFILL (av); ++i) |
486 |
PUSHs (*av_fetch (av, i, 0)); |
487 |
} |
488 |
break; |
489 |
|
490 |
case EIO_NOP: |
491 |
case EIO_BUSY: |
492 |
break; |
493 |
|
494 |
case EIO_READLINK: |
495 |
if (req->result > 0) |
496 |
PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result))); |
497 |
break; |
498 |
|
499 |
case EIO_STAT: |
500 |
case EIO_LSTAT: |
501 |
case EIO_FSTAT: |
502 |
PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; |
503 |
PL_laststatval = req->result; |
504 |
PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); |
505 |
PUSHs (sv_result); |
506 |
break; |
507 |
|
508 |
case EIO_READ: |
509 |
{ |
510 |
SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); |
511 |
*SvEND (req->sv2) = 0; |
512 |
SvPOK_only (req->sv2); |
513 |
SvSETMAGIC (req->sv2); |
514 |
PUSHs (sv_result); |
515 |
} |
516 |
break; |
517 |
|
518 |
case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */ |
519 |
if (req->result > 0) |
520 |
SvIV_set (sv_result, 0); |
521 |
/* FALLTHROUGH */ |
522 |
|
523 |
default: |
524 |
PUSHs (sv_result); |
525 |
break; |
526 |
} |
527 |
|
528 |
errno = req->errorno; |
529 |
|
530 |
PUTBACK; |
531 |
call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); |
532 |
SPAGAIN; |
533 |
|
534 |
if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache)) |
535 |
SvREFCNT_dec (sv_result); |
536 |
else |
537 |
sv_result_cache = sv_result; |
538 |
|
539 |
FREETMPS; |
540 |
LEAVE; |
541 |
|
542 |
PUTBACK; |
543 |
} |
544 |
|
545 |
return !!SvTRUE (ERRSV); |
546 |
} |
547 |
|
548 |
static void req_destroy (aio_req req) |
549 |
{ |
550 |
if (req->self) |
551 |
{ |
552 |
sv_unmagic (req->self, PERL_MAGIC_ext); |
553 |
SvREFCNT_dec (req->self); |
554 |
} |
555 |
|
556 |
SvREFCNT_dec (req->sv1); |
557 |
SvREFCNT_dec (req->sv2); |
558 |
SvREFCNT_dec (req->callback); |
559 |
|
560 |
Safefree (req); |
561 |
} |
562 |
|
563 |
static void req_cancel_subs (aio_req grp) |
564 |
{ |
565 |
aio_req sub; |
566 |
|
567 |
if (grp->type != EIO_GROUP) |
568 |
return; |
569 |
|
570 |
SvREFCNT_dec (grp->sv2); |
571 |
grp->sv2 = 0; |
572 |
|
573 |
eio_grp_cancel (grp); |
574 |
} |
575 |
|
576 |
static void |
577 |
create_respipe (void) |
578 |
{ |
579 |
if (s_epipe_renew (&respipe)) |
580 |
croak ("IO::AIO: unable to initialize result pipe"); |
581 |
} |
582 |
|
583 |
static void poll_wait (void) |
584 |
{ |
585 |
while (eio_nreqs ()) |
586 |
{ |
587 |
int size; |
588 |
|
589 |
X_LOCK (reslock); |
590 |
size = res_queue.size; |
591 |
X_UNLOCK (reslock); |
592 |
|
593 |
if (size) |
594 |
return; |
595 |
|
596 |
etp_maybe_start_thread (); |
597 |
|
598 |
s_epipe_wait (&respipe); |
599 |
} |
600 |
} |
601 |
|
602 |
static int poll_cb (void) |
603 |
{ |
604 |
for (;;) |
605 |
{ |
606 |
int res = eio_poll (); |
607 |
|
608 |
if (res > 0) |
609 |
croak (0); |
610 |
|
611 |
if (!max_outstanding || max_outstanding > eio_nreqs ()) |
612 |
return res; |
613 |
|
614 |
poll_wait (); |
615 |
} |
616 |
} |
617 |
|
618 |
static void atfork_child (void) |
619 |
{ |
620 |
create_respipe (); |
621 |
} |
622 |
|
623 |
/*****************************************************************************/ |
624 |
|
625 |
#if !_POSIX_MAPPED_FILES |
626 |
# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1) |
627 |
# define munmap(addr,length) (errno = ENOSYS, -1) |
628 |
#endif |
629 |
|
630 |
#define MMAP_MAGIC PERL_MAGIC_ext |
631 |
|
632 |
static int |
633 |
mmap_free (pTHX_ SV *sv, MAGIC *mg) |
634 |
{ |
635 |
int old_errno = errno; |
636 |
munmap (mg->mg_ptr, (size_t)mg->mg_obj); |
637 |
errno = old_errno; |
638 |
|
639 |
mg->mg_obj = 0; /* just in case */ |
640 |
|
641 |
SvREADONLY_off (sv); |
642 |
|
643 |
if (SvPVX (sv) != mg->mg_ptr) |
644 |
croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected"); |
645 |
|
646 |
SvCUR_set (sv, 0); |
647 |
SvPVX (sv) = 0; |
648 |
SvOK_off (sv); |
649 |
|
650 |
return 0; |
651 |
} |
652 |
|
653 |
static MGVTBL mmap_vtbl = { |
654 |
0, 0, 0, 0, mmap_free |
655 |
}; |
656 |
|
657 |
/*****************************************************************************/ |
658 |
|
659 |
static SV * |
660 |
get_cb (SV *cb_sv) |
661 |
{ |
662 |
SvGETMAGIC (cb_sv); |
663 |
return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0; |
664 |
} |
665 |
|
666 |
#define dREQ \ |
667 |
SV *cb_cv; \ |
668 |
aio_req req; \ |
669 |
int req_pri = next_pri; \ |
670 |
next_pri = EIO_PRI_DEFAULT; \ |
671 |
\ |
672 |
cb_cv = get_cb (callback); \ |
673 |
\ |
674 |
Newz (0, req, 1, eio_req); \ |
675 |
if (!req) \ |
676 |
croak ("out of memory during eio_req allocation"); \ |
677 |
\ |
678 |
req->callback = SvREFCNT_inc (cb_cv); \ |
679 |
req->pri = req_pri |
680 |
|
681 |
#define REQ_SEND \ |
682 |
PUTBACK; \ |
683 |
req_submit (req); \ |
684 |
SPAGAIN; \ |
685 |
\ |
686 |
if (GIMME_V != G_VOID) \ |
687 |
XPUSHs (req_sv (req, aio_req_stash)); |
688 |
|
689 |
MODULE = IO::AIO PACKAGE = IO::AIO |
690 |
|
691 |
PROTOTYPES: ENABLE |
692 |
|
693 |
BOOT: |
694 |
{ |
695 |
static const struct { |
696 |
const char *name; |
697 |
IV iv; |
698 |
} *civ, const_iv[] = { |
699 |
# define const_niv(name, value) { # name, (IV) value }, |
700 |
# define const_iv(name) { # name, (IV) name }, |
701 |
# define const_eio(name) { # name, (IV) EIO_ ## name }, |
702 |
const_iv (EXDEV) |
703 |
const_iv (ENOSYS) |
704 |
const_iv (O_RDONLY) |
705 |
const_iv (O_WRONLY) |
706 |
const_iv (O_RDWR) |
707 |
const_iv (O_CREAT) |
708 |
const_iv (O_TRUNC) |
709 |
const_iv (O_EXCL) |
710 |
const_iv (O_APPEND) |
711 |
#ifndef _WIN32 |
712 |
const_iv (S_IFIFO) |
713 |
#endif |
714 |
const_niv (FADV_NORMAL , POSIX_FADV_NORMAL) |
715 |
const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL) |
716 |
const_niv (FADV_RANDOM , POSIX_FADV_RANDOM) |
717 |
const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE) |
718 |
const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED) |
719 |
const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED) |
720 |
|
721 |
const_niv (MADV_NORMAL , POSIX_MADV_NORMAL) |
722 |
const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL) |
723 |
const_niv (MADV_RANDOM , POSIX_MADV_RANDOM) |
724 |
const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED) |
725 |
const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED) |
726 |
|
727 |
const_iv (ST_RDONLY) |
728 |
const_iv (ST_NOSUID) |
729 |
const_iv (ST_NODEV) |
730 |
const_iv (ST_NOEXEC) |
731 |
const_iv (ST_SYNCHRONOUS) |
732 |
const_iv (ST_MANDLOCK) |
733 |
const_iv (ST_WRITE) |
734 |
const_iv (ST_APPEND) |
735 |
const_iv (ST_IMMUTABLE) |
736 |
const_iv (ST_NOATIME) |
737 |
const_iv (ST_NODIRATIME) |
738 |
const_iv (ST_RELATIME) |
739 |
|
740 |
const_iv (PROT_EXEC) |
741 |
const_iv (PROT_NONE) |
742 |
const_iv (PROT_READ) |
743 |
const_iv (PROT_WRITE) |
744 |
|
745 |
/*const_iv (MAP_FIXED)*/ |
746 |
const_iv (MAP_PRIVATE) |
747 |
const_iv (MAP_SHARED) |
748 |
const_iv (MAP_ANONYMOUS) |
749 |
|
750 |
/* linuxish */ |
751 |
const_iv (MAP_HUGETLB) |
752 |
const_iv (MAP_LOCKED) |
753 |
const_iv (MAP_NORESERVE) |
754 |
const_iv (MAP_POPULATE) |
755 |
const_iv (MAP_NONBLOCK) |
756 |
|
757 |
const_iv (MCL_FUTURE) |
758 |
const_iv (MCL_CURRENT) |
759 |
|
760 |
const_eio (MS_ASYNC) |
761 |
const_eio (MS_INVALIDATE) |
762 |
const_eio (MS_SYNC) |
763 |
|
764 |
const_eio (MT_MODIFY) |
765 |
|
766 |
const_eio (SYNC_FILE_RANGE_WAIT_BEFORE) |
767 |
const_eio (SYNC_FILE_RANGE_WRITE) |
768 |
const_eio (SYNC_FILE_RANGE_WAIT_AFTER) |
769 |
|
770 |
const_eio (READDIR_DENTS) |
771 |
const_eio (READDIR_DIRS_FIRST) |
772 |
const_eio (READDIR_STAT_ORDER) |
773 |
const_eio (READDIR_FOUND_UNKNOWN) |
774 |
|
775 |
const_eio (DT_UNKNOWN) |
776 |
const_eio (DT_FIFO) |
777 |
const_eio (DT_CHR) |
778 |
const_eio (DT_DIR) |
779 |
const_eio (DT_BLK) |
780 |
const_eio (DT_REG) |
781 |
const_eio (DT_LNK) |
782 |
const_eio (DT_SOCK) |
783 |
const_eio (DT_WHT) |
784 |
}; |
785 |
|
786 |
aio_stash = gv_stashpv ("IO::AIO" , 1); |
787 |
aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1); |
788 |
aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1); |
789 |
|
790 |
for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) |
791 |
newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv)); |
792 |
|
793 |
newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE)); |
794 |
|
795 |
create_respipe (); |
796 |
|
797 |
if (eio_init (want_poll, done_poll) < 0) |
798 |
croak ("IO::AIO: unable to initialise eio library"); |
799 |
|
800 |
/* atfork child called in fifo order, so before eio's handler */ |
801 |
X_THREAD_ATFORK (0, 0, atfork_child); |
802 |
} |
803 |
|
804 |
void |
805 |
max_poll_reqs (int nreqs) |
806 |
PROTOTYPE: $ |
807 |
CODE: |
808 |
eio_set_max_poll_reqs (nreqs); |
809 |
|
810 |
void |
811 |
max_poll_time (double nseconds) |
812 |
PROTOTYPE: $ |
813 |
CODE: |
814 |
eio_set_max_poll_time (nseconds); |
815 |
|
816 |
void |
817 |
min_parallel (int nthreads) |
818 |
PROTOTYPE: $ |
819 |
CODE: |
820 |
eio_set_min_parallel (nthreads); |
821 |
|
822 |
void |
823 |
max_parallel (int nthreads) |
824 |
PROTOTYPE: $ |
825 |
CODE: |
826 |
eio_set_max_parallel (nthreads); |
827 |
|
828 |
void |
829 |
max_idle (int nthreads) |
830 |
PROTOTYPE: $ |
831 |
CODE: |
832 |
eio_set_max_idle (nthreads); |
833 |
|
834 |
void |
835 |
max_outstanding (int maxreqs) |
836 |
PROTOTYPE: $ |
837 |
CODE: |
838 |
max_outstanding = maxreqs; |
839 |
|
840 |
void |
841 |
aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) |
842 |
PROTOTYPE: $$$;$ |
843 |
PPCODE: |
844 |
{ |
845 |
dREQ; |
846 |
|
847 |
req->type = EIO_OPEN; |
848 |
req->sv1 = newSVsv (pathname); |
849 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
850 |
req->int1 = flags; |
851 |
req->int2 = mode; |
852 |
|
853 |
REQ_SEND; |
854 |
} |
855 |
|
856 |
void |
857 |
aio_fsync (SV *fh, SV *callback=&PL_sv_undef) |
858 |
PROTOTYPE: $;$ |
859 |
ALIAS: |
860 |
aio_fsync = EIO_FSYNC |
861 |
aio_fdatasync = EIO_FDATASYNC |
862 |
PPCODE: |
863 |
{ |
864 |
int fd = s_fileno_croak (fh, 0); |
865 |
dREQ; |
866 |
|
867 |
req->type = ix; |
868 |
req->sv1 = newSVsv (fh); |
869 |
req->int1 = fd; |
870 |
|
871 |
REQ_SEND (req); |
872 |
} |
873 |
|
874 |
void |
875 |
aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) |
876 |
PROTOTYPE: $$$$;$ |
877 |
PPCODE: |
878 |
{ |
879 |
int fd = s_fileno_croak (fh, 0); |
880 |
dREQ; |
881 |
|
882 |
req->type = EIO_SYNC_FILE_RANGE; |
883 |
req->sv1 = newSVsv (fh); |
884 |
req->int1 = fd; |
885 |
req->offs = offset; |
886 |
req->size = nbytes; |
887 |
req->int2 = flags; |
888 |
|
889 |
REQ_SEND (req); |
890 |
} |
891 |
|
892 |
void |
893 |
aio_close (SV *fh, SV *callback=&PL_sv_undef) |
894 |
PROTOTYPE: $;$ |
895 |
PPCODE: |
896 |
{ |
897 |
static int close_pipe = -1; /* dummy fd to close fds via dup2 */ |
898 |
int fd = s_fileno_croak (fh, 0); |
899 |
dREQ; |
900 |
|
901 |
if (close_pipe < 0) |
902 |
{ |
903 |
int pipefd [2]; |
904 |
|
905 |
if (pipe (pipefd) < 0 |
906 |
|| close (pipefd [1]) < 0 |
907 |
|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0) |
908 |
abort (); /*D*/ |
909 |
|
910 |
close_pipe = pipefd [0]; |
911 |
} |
912 |
|
913 |
req->type = EIO_DUP2; |
914 |
req->int1 = close_pipe; |
915 |
req->sv2 = newSVsv (fh); |
916 |
req->int2 = fd; |
917 |
|
918 |
REQ_SEND (req); |
919 |
} |
920 |
|
921 |
void |
922 |
aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) |
923 |
ALIAS: |
924 |
aio_read = EIO_READ |
925 |
aio_write = EIO_WRITE |
926 |
PROTOTYPE: $$$$$;$ |
927 |
PPCODE: |
928 |
{ |
929 |
STRLEN svlen; |
930 |
int fd = s_fileno_croak (fh, ix == EIO_WRITE); |
931 |
char *svptr = SvPVbyte (data, svlen); |
932 |
UV len = SvUV (length); |
933 |
|
934 |
if (dataoffset < 0) |
935 |
dataoffset += svlen; |
936 |
|
937 |
if (dataoffset < 0 || dataoffset > svlen) |
938 |
croak ("dataoffset outside of data scalar"); |
939 |
|
940 |
if (ix == EIO_WRITE) |
941 |
{ |
942 |
/* write: check length and adjust. */ |
943 |
if (!SvOK (length) || len + dataoffset > svlen) |
944 |
len = svlen - dataoffset; |
945 |
} |
946 |
else |
947 |
{ |
948 |
/* read: check type and grow scalar as necessary */ |
949 |
SvUPGRADE (data, SVt_PV); |
950 |
svptr = SvGROW (data, len + dataoffset + 1); |
951 |
} |
952 |
|
953 |
{ |
954 |
dREQ; |
955 |
|
956 |
req->type = ix; |
957 |
req->sv1 = newSVsv (fh); |
958 |
req->int1 = fd; |
959 |
req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
960 |
req->size = len; |
961 |
req->sv2 = SvREFCNT_inc (data); |
962 |
req->ptr2 = (char *)svptr + dataoffset; |
963 |
req->stroffset = dataoffset; |
964 |
|
965 |
if (!SvREADONLY (data)) |
966 |
{ |
967 |
SvREADONLY_on (data); |
968 |
req->flags |= FLAG_SV2_RO_OFF; |
969 |
} |
970 |
|
971 |
REQ_SEND; |
972 |
} |
973 |
} |
974 |
|
975 |
void |
976 |
aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) |
977 |
PROTOTYPE: $$;$ |
978 |
PPCODE: |
979 |
{ |
980 |
SV *data; |
981 |
dREQ; |
982 |
|
983 |
req->type = EIO_READLINK; |
984 |
req->sv1 = newSVsv (path); |
985 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
986 |
|
987 |
REQ_SEND; |
988 |
} |
989 |
|
990 |
void |
991 |
aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef) |
992 |
PROTOTYPE: $$$$;$ |
993 |
PPCODE: |
994 |
{ |
995 |
int ifd = s_fileno_croak (in_fh , 0); |
996 |
int ofd = s_fileno_croak (out_fh, 1); |
997 |
dREQ; |
998 |
|
999 |
req->type = EIO_SENDFILE; |
1000 |
req->sv1 = newSVsv (out_fh); |
1001 |
req->int1 = ofd; |
1002 |
req->sv2 = newSVsv (in_fh); |
1003 |
req->int2 = ifd; |
1004 |
req->offs = in_offset; |
1005 |
req->size = length; |
1006 |
|
1007 |
REQ_SEND; |
1008 |
} |
1009 |
|
1010 |
void |
1011 |
aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) |
1012 |
PROTOTYPE: $$$;$ |
1013 |
PPCODE: |
1014 |
{ |
1015 |
int fd = s_fileno_croak (fh, 0); |
1016 |
dREQ; |
1017 |
|
1018 |
req->type = EIO_READAHEAD; |
1019 |
req->sv1 = newSVsv (fh); |
1020 |
req->int1 = fd; |
1021 |
req->offs = offset; |
1022 |
req->size = length; |
1023 |
|
1024 |
REQ_SEND; |
1025 |
} |
1026 |
|
1027 |
void |
1028 |
aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) |
1029 |
ALIAS: |
1030 |
aio_stat = EIO_STAT |
1031 |
aio_lstat = EIO_LSTAT |
1032 |
aio_statvfs = EIO_STATVFS |
1033 |
PPCODE: |
1034 |
{ |
1035 |
dREQ; |
1036 |
|
1037 |
req->sv1 = newSVsv (fh_or_path); |
1038 |
|
1039 |
if (SvPOK (req->sv1)) |
1040 |
{ |
1041 |
req->type = ix; |
1042 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
1043 |
} |
1044 |
else |
1045 |
{ |
1046 |
req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT; |
1047 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1048 |
} |
1049 |
|
1050 |
REQ_SEND; |
1051 |
} |
1052 |
|
1053 |
void |
1054 |
aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) |
1055 |
PPCODE: |
1056 |
{ |
1057 |
dREQ; |
1058 |
|
1059 |
req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; |
1060 |
req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; |
1061 |
req->sv1 = newSVsv (fh_or_path); |
1062 |
|
1063 |
if (SvPOK (req->sv1)) |
1064 |
{ |
1065 |
req->type = EIO_UTIME; |
1066 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
1067 |
} |
1068 |
else |
1069 |
{ |
1070 |
req->type = EIO_FUTIME; |
1071 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1072 |
} |
1073 |
|
1074 |
REQ_SEND; |
1075 |
} |
1076 |
|
1077 |
void |
1078 |
aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) |
1079 |
PPCODE: |
1080 |
{ |
1081 |
dREQ; |
1082 |
|
1083 |
req->sv1 = newSVsv (fh_or_path); |
1084 |
req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
1085 |
|
1086 |
if (SvPOK (req->sv1)) |
1087 |
{ |
1088 |
req->type = EIO_TRUNCATE; |
1089 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
1090 |
} |
1091 |
else |
1092 |
{ |
1093 |
req->type = EIO_FTRUNCATE; |
1094 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1095 |
} |
1096 |
|
1097 |
REQ_SEND; |
1098 |
} |
1099 |
|
1100 |
void |
1101 |
aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) |
1102 |
ALIAS: |
1103 |
aio_chmod = EIO_CHMOD |
1104 |
aio_mkdir = EIO_MKDIR |
1105 |
PPCODE: |
1106 |
{ |
1107 |
dREQ; |
1108 |
|
1109 |
req->int2 = mode; |
1110 |
req->sv1 = newSVsv (fh_or_path); |
1111 |
|
1112 |
if (SvPOK (req->sv1)) |
1113 |
{ |
1114 |
req->type = ix; |
1115 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
1116 |
} |
1117 |
else |
1118 |
{ |
1119 |
req->type = EIO_FCHMOD; |
1120 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1121 |
} |
1122 |
|
1123 |
REQ_SEND; |
1124 |
} |
1125 |
|
1126 |
void |
1127 |
aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) |
1128 |
PPCODE: |
1129 |
{ |
1130 |
dREQ; |
1131 |
|
1132 |
req->int2 = SvOK (uid) ? SvIV (uid) : -1; |
1133 |
req->int3 = SvOK (gid) ? SvIV (gid) : -1; |
1134 |
req->sv1 = newSVsv (fh_or_path); |
1135 |
|
1136 |
if (SvPOK (req->sv1)) |
1137 |
{ |
1138 |
req->type = EIO_CHOWN; |
1139 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
1140 |
} |
1141 |
else |
1142 |
{ |
1143 |
req->type = EIO_FCHOWN; |
1144 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1145 |
} |
1146 |
|
1147 |
REQ_SEND; |
1148 |
} |
1149 |
|
1150 |
void |
1151 |
aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef) |
1152 |
PPCODE: |
1153 |
{ |
1154 |
dREQ; |
1155 |
|
1156 |
req->type = EIO_READDIR; |
1157 |
req->sv1 = newSVsv (pathname); |
1158 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
1159 |
req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1; |
1160 |
|
1161 |
if (flags & EIO_READDIR_DENTS) |
1162 |
req->int1 |= EIO_READDIR_CUSTOM2; |
1163 |
|
1164 |
REQ_SEND; |
1165 |
} |
1166 |
|
1167 |
void |
1168 |
aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) |
1169 |
ALIAS: |
1170 |
aio_unlink = EIO_UNLINK |
1171 |
aio_rmdir = EIO_RMDIR |
1172 |
aio_readdir = EIO_READDIR |
1173 |
PPCODE: |
1174 |
{ |
1175 |
dREQ; |
1176 |
|
1177 |
req->type = ix; |
1178 |
req->sv1 = newSVsv (pathname); |
1179 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
1180 |
|
1181 |
REQ_SEND; |
1182 |
} |
1183 |
|
1184 |
void |
1185 |
aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) |
1186 |
ALIAS: |
1187 |
aio_link = EIO_LINK |
1188 |
aio_symlink = EIO_SYMLINK |
1189 |
aio_rename = EIO_RENAME |
1190 |
PPCODE: |
1191 |
{ |
1192 |
dREQ; |
1193 |
|
1194 |
req->type = ix; |
1195 |
req->sv1 = newSVsv (oldpath); |
1196 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
1197 |
req->sv2 = newSVsv (newpath); |
1198 |
req->ptr2 = SvPVbyte_nolen (req->sv2); |
1199 |
|
1200 |
REQ_SEND; |
1201 |
} |
1202 |
|
1203 |
void |
1204 |
aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) |
1205 |
PPCODE: |
1206 |
{ |
1207 |
dREQ; |
1208 |
|
1209 |
req->type = EIO_MKNOD; |
1210 |
req->sv1 = newSVsv (pathname); |
1211 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
1212 |
req->int2 = (mode_t)mode; |
1213 |
req->offs = dev; |
1214 |
|
1215 |
REQ_SEND; |
1216 |
} |
1217 |
|
1218 |
void |
1219 |
aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef) |
1220 |
ALIAS: |
1221 |
aio_mtouch = EIO_MTOUCH |
1222 |
aio_msync = EIO_MSYNC |
1223 |
PROTOTYPE: $$$$;$ |
1224 |
PPCODE: |
1225 |
{ |
1226 |
STRLEN svlen; |
1227 |
UV len = SvUV (length); |
1228 |
char *svptr = SvPVbyte (data, svlen); |
1229 |
|
1230 |
if (offset < 0) |
1231 |
offset += svlen; |
1232 |
|
1233 |
if (offset < 0 || offset > svlen) |
1234 |
croak ("offset outside of scalar"); |
1235 |
|
1236 |
if (!SvOK (length) || len + offset > svlen) |
1237 |
len = svlen - offset; |
1238 |
|
1239 |
{ |
1240 |
dREQ; |
1241 |
|
1242 |
req->type = ix; |
1243 |
req->size = len; |
1244 |
req->sv2 = SvREFCNT_inc (data); |
1245 |
req->ptr2 = (char *)svptr + offset; |
1246 |
req->int1 = flags; |
1247 |
|
1248 |
REQ_SEND; |
1249 |
} |
1250 |
} |
1251 |
|
1252 |
void |
1253 |
aio_busy (double delay, SV *callback=&PL_sv_undef) |
1254 |
PPCODE: |
1255 |
{ |
1256 |
dREQ; |
1257 |
|
1258 |
req->type = EIO_BUSY; |
1259 |
req->nv1 = delay < 0. ? 0. : delay; |
1260 |
|
1261 |
REQ_SEND; |
1262 |
} |
1263 |
|
1264 |
void |
1265 |
aio_group (SV *callback=&PL_sv_undef) |
1266 |
PROTOTYPE: ;$ |
1267 |
PPCODE: |
1268 |
{ |
1269 |
dREQ; |
1270 |
|
1271 |
req->type = EIO_GROUP; |
1272 |
|
1273 |
req_submit (req); |
1274 |
XPUSHs (req_sv (req, aio_grp_stash)); |
1275 |
} |
1276 |
|
1277 |
void |
1278 |
aio_nop (SV *callback=&PL_sv_undef) |
1279 |
ALIAS: |
1280 |
aio_nop = EIO_NOP |
1281 |
aio_sync = EIO_SYNC |
1282 |
PPCODE: |
1283 |
{ |
1284 |
dREQ; |
1285 |
|
1286 |
req->type = ix; |
1287 |
|
1288 |
REQ_SEND; |
1289 |
} |
1290 |
|
1291 |
int |
1292 |
aioreq_pri (int pri = 0) |
1293 |
PROTOTYPE: ;$ |
1294 |
CODE: |
1295 |
RETVAL = next_pri; |
1296 |
if (items > 0) |
1297 |
{ |
1298 |
if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; |
1299 |
if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX; |
1300 |
next_pri = pri; |
1301 |
} |
1302 |
OUTPUT: |
1303 |
RETVAL |
1304 |
|
1305 |
void |
1306 |
aioreq_nice (int nice = 0) |
1307 |
CODE: |
1308 |
nice = next_pri - nice; |
1309 |
if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN; |
1310 |
if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; |
1311 |
next_pri = nice; |
1312 |
|
1313 |
void |
1314 |
flush () |
1315 |
PROTOTYPE: |
1316 |
CODE: |
1317 |
while (eio_nreqs ()) |
1318 |
{ |
1319 |
poll_wait (); |
1320 |
poll_cb (); |
1321 |
} |
1322 |
|
1323 |
int |
1324 |
poll() |
1325 |
PROTOTYPE: |
1326 |
CODE: |
1327 |
poll_wait (); |
1328 |
RETVAL = poll_cb (); |
1329 |
OUTPUT: |
1330 |
RETVAL |
1331 |
|
1332 |
int |
1333 |
poll_fileno() |
1334 |
PROTOTYPE: |
1335 |
CODE: |
1336 |
RETVAL = s_epipe_fd (&respipe); |
1337 |
OUTPUT: |
1338 |
RETVAL |
1339 |
|
1340 |
int |
1341 |
poll_cb(...) |
1342 |
PROTOTYPE: |
1343 |
CODE: |
1344 |
RETVAL = poll_cb (); |
1345 |
OUTPUT: |
1346 |
RETVAL |
1347 |
|
1348 |
void |
1349 |
poll_wait() |
1350 |
PROTOTYPE: |
1351 |
CODE: |
1352 |
poll_wait (); |
1353 |
|
1354 |
int |
1355 |
nreqs() |
1356 |
PROTOTYPE: |
1357 |
CODE: |
1358 |
RETVAL = eio_nreqs (); |
1359 |
OUTPUT: |
1360 |
RETVAL |
1361 |
|
1362 |
int |
1363 |
nready() |
1364 |
PROTOTYPE: |
1365 |
CODE: |
1366 |
RETVAL = eio_nready (); |
1367 |
OUTPUT: |
1368 |
RETVAL |
1369 |
|
1370 |
int |
1371 |
npending() |
1372 |
PROTOTYPE: |
1373 |
CODE: |
1374 |
RETVAL = eio_npending (); |
1375 |
OUTPUT: |
1376 |
RETVAL |
1377 |
|
1378 |
int |
1379 |
nthreads() |
1380 |
PROTOTYPE: |
1381 |
CODE: |
1382 |
RETVAL = eio_nthreads (); |
1383 |
OUTPUT: |
1384 |
RETVAL |
1385 |
|
1386 |
int |
1387 |
fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) |
1388 |
PROTOTYPE: $$$$ |
1389 |
CODE: |
1390 |
#if _XOPEN_SOURCE >= 600 && !NO_FADVISE |
1391 |
RETVAL = posix_fadvise (fh, offset, length, advice); |
1392 |
#else |
1393 |
RETVAL = errno = ENOSYS; /* yes, this is actually correct */ |
1394 |
#endif |
1395 |
OUTPUT: |
1396 |
RETVAL |
1397 |
|
1398 |
ssize_t |
1399 |
sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) |
1400 |
PROTOTYPE: $$$$ |
1401 |
CODE: |
1402 |
RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); |
1403 |
OUTPUT: |
1404 |
RETVAL |
1405 |
|
1406 |
void |
1407 |
mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0) |
1408 |
PROTOTYPE: $$$$$;$ |
1409 |
PPCODE: |
1410 |
sv_unmagic (scalar, MMAP_MAGIC); |
1411 |
{ |
1412 |
int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; |
1413 |
void *addr = (void *)mmap (0, length, prot, flags, fd, offset); |
1414 |
if (addr == (void *)-1) |
1415 |
XSRETURN_NO; |
1416 |
|
1417 |
sv_force_normal (scalar); |
1418 |
|
1419 |
/* we store the length in mg_obj, as namlen is I32 :/ */ |
1420 |
sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0) |
1421 |
->mg_obj = (SV *)length; |
1422 |
|
1423 |
SvUPGRADE (scalar, SVt_PV); /* nop... */ |
1424 |
|
1425 |
if (!(prot & PROT_WRITE)) |
1426 |
SvREADONLY_on (scalar); |
1427 |
|
1428 |
if (SvLEN (scalar)) |
1429 |
Safefree (SvPVX (scalar)); |
1430 |
|
1431 |
SvPVX (scalar) = (char *)addr; |
1432 |
SvCUR_set (scalar, length); |
1433 |
SvLEN_set (scalar, 0); |
1434 |
SvPOK_only (scalar); |
1435 |
|
1436 |
XSRETURN_YES; |
1437 |
} |
1438 |
|
1439 |
void |
1440 |
munmap (SV *scalar) |
1441 |
PROTOTYPE: $ |
1442 |
CODE: |
1443 |
sv_unmagic (scalar, MMAP_MAGIC); |
1444 |
|
1445 |
int |
1446 |
madvise (SV *scalar, off_t offset, off_t length, IV advice) |
1447 |
PROTOTYPE: $$$$ |
1448 |
CODE: |
1449 |
{ |
1450 |
char *addr = SvPV_nolen (scalar) + offset; |
1451 |
|
1452 |
if (!SvOK (ST (2))) |
1453 |
length = SvCUR (scalar) - offset; |
1454 |
|
1455 |
if (addr >= SvEND (scalar) || length <= 0) |
1456 |
XSRETURN_EMPTY; |
1457 |
|
1458 |
#if _XOPEN_SOURCE >= 600 && !NO_MADVISE |
1459 |
RETVAL = posix_madvise (addr, length, advice); |
1460 |
#else |
1461 |
RETVAL = errno = ENOSYS; /* yes, this is actually correct */ |
1462 |
#endif |
1463 |
} |
1464 |
OUTPUT: |
1465 |
RETVAL |
1466 |
|
1467 |
int |
1468 |
mlockall (int flags) |
1469 |
PROTOTYPE: $ |
1470 |
CODE: |
1471 |
#if _POSIX_MEMLOCK |
1472 |
#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7 |
1473 |
extern int mallopt (int, int); |
1474 |
mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */ |
1475 |
#endif |
1476 |
mlockall (flags); |
1477 |
#else |
1478 |
RETVAL = -1; |
1479 |
errno = ENOSYS; |
1480 |
#endif |
1481 |
OUTPUT: |
1482 |
RETVAL |
1483 |
|
1484 |
int |
1485 |
munlockall () |
1486 |
PROTOTYPE: |
1487 |
CODE: |
1488 |
#if _POSIX_MEMLOCK |
1489 |
munlockall (); |
1490 |
#else |
1491 |
RETVAL = -1; |
1492 |
errno = ENOSYS; |
1493 |
#endif |
1494 |
OUTPUT: |
1495 |
RETVAL |
1496 |
|
1497 |
void _on_next_submit (SV *cb) |
1498 |
CODE: |
1499 |
SvREFCNT_dec (on_next_submit); |
1500 |
on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; |
1501 |
|
1502 |
PROTOTYPES: DISABLE |
1503 |
|
1504 |
MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1505 |
|
1506 |
void |
1507 |
cancel (aio_req_ornot req) |
1508 |
CODE: |
1509 |
eio_cancel (req); |
1510 |
|
1511 |
void |
1512 |
cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
1513 |
PPCODE: |
1514 |
{ |
1515 |
if (GIMME_V != G_VOID) |
1516 |
XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef); |
1517 |
|
1518 |
if (items > 1) |
1519 |
{ |
1520 |
SV *cb_cv =get_cb (callback); |
1521 |
|
1522 |
SvREFCNT_dec (req->callback); |
1523 |
req->callback = SvREFCNT_inc (cb_cv); |
1524 |
} |
1525 |
} |
1526 |
|
1527 |
MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
1528 |
|
1529 |
void |
1530 |
add (aio_req grp, ...) |
1531 |
PPCODE: |
1532 |
{ |
1533 |
int i; |
1534 |
|
1535 |
if (grp->int1 == 2) |
1536 |
croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
1537 |
|
1538 |
for (i = 1; i < items; ++i ) |
1539 |
{ |
1540 |
aio_req req; |
1541 |
|
1542 |
if (GIMME_V != G_VOID) |
1543 |
XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
1544 |
|
1545 |
req = SvAIO_REQ (ST (i)); |
1546 |
|
1547 |
if (req) |
1548 |
eio_grp_add (grp, req); |
1549 |
} |
1550 |
} |
1551 |
|
1552 |
void |
1553 |
cancel_subs (aio_req_ornot req) |
1554 |
CODE: |
1555 |
req_cancel_subs (req); |
1556 |
|
1557 |
void |
1558 |
result (aio_req grp, ...) |
1559 |
CODE: |
1560 |
{ |
1561 |
int i; |
1562 |
AV *av; |
1563 |
|
1564 |
grp->errorno = errno; |
1565 |
|
1566 |
av = newAV (); |
1567 |
av_extend (av, items - 1); |
1568 |
|
1569 |
for (i = 1; i < items; ++i ) |
1570 |
av_push (av, newSVsv (ST (i))); |
1571 |
|
1572 |
SvREFCNT_dec (grp->sv1); |
1573 |
grp->sv1 = (SV *)av; |
1574 |
} |
1575 |
|
1576 |
void |
1577 |
errno (aio_req grp, int errorno = errno) |
1578 |
CODE: |
1579 |
grp->errorno = errorno; |
1580 |
|
1581 |
void |
1582 |
limit (aio_req grp, int limit) |
1583 |
CODE: |
1584 |
eio_grp_limit (grp, limit); |
1585 |
|
1586 |
void |
1587 |
feed (aio_req grp, SV *callback=&PL_sv_undef) |
1588 |
CODE: |
1589 |
{ |
1590 |
SvREFCNT_dec (grp->sv2); |
1591 |
grp->sv2 = newSVsv (callback); |
1592 |
grp->feed = aio_grp_feed; |
1593 |
|
1594 |
if (grp->int2 <= 0) |
1595 |
grp->int2 = 2; |
1596 |
|
1597 |
eio_grp_limit (grp, grp->int2); |
1598 |
} |
1599 |
|