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_MEMLOCK_RANGE || _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/config.h" |
124 |
#include "libeio/eio.h" |
125 |
|
126 |
#ifndef POSIX_FADV_NORMAL |
127 |
# define POSIX_FADV_NORMAL 0 |
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 |
#if !HAVE_POSIX_FADVISE |
146 |
# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */ |
147 |
#endif |
148 |
|
149 |
#ifndef POSIX_MADV_NORMAL |
150 |
# define POSIX_MADV_NORMAL 0 |
151 |
#endif |
152 |
#ifndef POSIX_MADV_SEQUENTIAL |
153 |
# define POSIX_MADV_SEQUENTIAL 0 |
154 |
#endif |
155 |
#ifndef POSIX_MADV_RANDOM |
156 |
# define POSIX_MADV_RANDOM 0 |
157 |
#endif |
158 |
#ifndef POSIX_MADV_WILLNEED |
159 |
# define POSIX_MADV_WILLNEED 0 |
160 |
#endif |
161 |
#ifndef POSIX_MADV_DONTNEED |
162 |
# define POSIX_MADV_DONTNEED 0 |
163 |
#endif |
164 |
|
165 |
#if !HAVE_POSIX_MADVISE |
166 |
# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */ |
167 |
#endif |
168 |
|
169 |
#ifndef PROT_NONE |
170 |
# define PROT_NONE 0 |
171 |
#endif |
172 |
#ifndef PROT_READ |
173 |
# define PROT_READ 0 |
174 |
#endif |
175 |
#ifndef PROT_WRITE |
176 |
# define PROT_READ 0 |
177 |
#endif |
178 |
#ifndef PROT_EXEC |
179 |
# define PROT_EXEC 0 |
180 |
#endif |
181 |
|
182 |
#ifndef ST_NODEV |
183 |
# define ST_NODEV 0 |
184 |
#endif |
185 |
#ifndef ST_NOEXEC |
186 |
# define ST_NOEXEC 0 |
187 |
#endif |
188 |
#ifndef ST_SYNCHRONOUS |
189 |
# define ST_SYNCHRONOUS 0 |
190 |
#endif |
191 |
#ifndef ST_MANDLOCK |
192 |
# define ST_MANDLOCK 0 |
193 |
#endif |
194 |
#ifndef ST_WRITE |
195 |
# define ST_WRITE 0 |
196 |
#endif |
197 |
#ifndef ST_APPEND |
198 |
# define ST_APPEND 0 |
199 |
#endif |
200 |
#ifndef ST_IMMUTABLE |
201 |
# define ST_IMMUTABLE 0 |
202 |
#endif |
203 |
#ifndef ST_NOATIME |
204 |
# define ST_NOATIME 0 |
205 |
#endif |
206 |
#ifndef ST_NODIRATIME |
207 |
# define ST_NODIRATIME 0 |
208 |
#endif |
209 |
#ifndef ST_RELATIME |
210 |
# define ST_RELATIME 0 |
211 |
#endif |
212 |
|
213 |
#ifndef MAP_ANONYMOUS |
214 |
# ifdef MAP_ANON |
215 |
# define MAP_ANONYMOUS MAP_ANON |
216 |
# else |
217 |
# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */ |
218 |
# endif |
219 |
#endif |
220 |
#ifndef MAP_HUGETLB |
221 |
# define MAP_HUGETLB 0 |
222 |
#endif |
223 |
#ifndef MAP_LOCKED |
224 |
# define MAP_LOCKED 0 |
225 |
#endif |
226 |
#ifndef MAP_NORESERVE |
227 |
# define MAP_NORESERVE 0 |
228 |
#endif |
229 |
#ifndef MAP_POPULATE |
230 |
# define MAP_POPULATE 0 |
231 |
#endif |
232 |
#ifndef MAP_NONBLOCK |
233 |
# define MAP_NONBLOCK 0 |
234 |
#endif |
235 |
|
236 |
#ifndef PAGESIZE |
237 |
# define PAGESIZE sysconf (_SC_PAGESIZE) |
238 |
#endif |
239 |
|
240 |
static int req_invoke (eio_req *req); |
241 |
#define EIO_FINISH(req) req_invoke (req) |
242 |
static void req_destroy (eio_req *grp); |
243 |
#define EIO_DESTROY(req) req_destroy (req) |
244 |
|
245 |
enum { |
246 |
FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */ |
247 |
}; |
248 |
|
249 |
#include "libeio/eio.c" |
250 |
|
251 |
typedef eio_req *aio_req; |
252 |
typedef eio_req *aio_req_ornot; |
253 |
|
254 |
static SV *on_next_submit; |
255 |
static int next_pri = EIO_PRI_DEFAULT; |
256 |
static int max_outstanding; |
257 |
|
258 |
static s_epipe respipe; |
259 |
|
260 |
static void req_destroy (aio_req req); |
261 |
static void req_cancel (aio_req req); |
262 |
|
263 |
static void want_poll (void) |
264 |
{ |
265 |
/* write a dummy byte to the pipe so fh becomes ready */ |
266 |
s_epipe_signal (&respipe); |
267 |
} |
268 |
|
269 |
static void done_poll (void) |
270 |
{ |
271 |
/* read any signals sent by the worker threads */ |
272 |
s_epipe_drain (&respipe); |
273 |
} |
274 |
|
275 |
/* must be called at most once */ |
276 |
static SV *req_sv (aio_req req, HV *stash) |
277 |
{ |
278 |
if (!req->self) |
279 |
{ |
280 |
req->self = (SV *)newHV (); |
281 |
sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); |
282 |
} |
283 |
|
284 |
return sv_2mortal (sv_bless (newRV_inc (req->self), stash)); |
285 |
} |
286 |
|
287 |
static aio_req SvAIO_REQ (SV *sv) |
288 |
{ |
289 |
MAGIC *mg; |
290 |
|
291 |
if (!SvROK (sv) |
292 |
|| (SvSTASH (SvRV (sv)) != aio_grp_stash |
293 |
&& SvSTASH (SvRV (sv)) != aio_req_stash |
294 |
&& !sv_derived_from (sv, "IO::AIO::REQ"))) |
295 |
croak ("object of class IO::AIO::REQ expected"); |
296 |
|
297 |
mg = mg_find (SvRV (sv), PERL_MAGIC_ext); |
298 |
|
299 |
return mg ? (aio_req)mg->mg_ptr : 0; |
300 |
} |
301 |
|
302 |
static void aio_grp_feed (aio_req grp) |
303 |
{ |
304 |
if (grp->sv2 && SvOK (grp->sv2)) |
305 |
{ |
306 |
dSP; |
307 |
|
308 |
ENTER; |
309 |
SAVETMPS; |
310 |
PUSHMARK (SP); |
311 |
XPUSHs (req_sv (grp, aio_grp_stash)); |
312 |
PUTBACK; |
313 |
call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); |
314 |
SPAGAIN; |
315 |
FREETMPS; |
316 |
LEAVE; |
317 |
} |
318 |
} |
319 |
|
320 |
static void req_submit (eio_req *req) |
321 |
{ |
322 |
eio_submit (req); |
323 |
|
324 |
if (expect_false (on_next_submit)) |
325 |
{ |
326 |
dSP; |
327 |
SV *cb = sv_2mortal (on_next_submit); |
328 |
|
329 |
on_next_submit = 0; |
330 |
|
331 |
PUSHMARK (SP); |
332 |
PUTBACK; |
333 |
call_sv (cb, G_DISCARD | G_EVAL); |
334 |
} |
335 |
} |
336 |
|
337 |
static int req_invoke (eio_req *req) |
338 |
{ |
339 |
if (req->flags & FLAG_SV2_RO_OFF) |
340 |
SvREADONLY_off (req->sv2); |
341 |
|
342 |
if (!EIO_CANCELLED (req) && req->callback) |
343 |
{ |
344 |
dSP; |
345 |
static SV *sv_result_cache; /* caches the result integer SV */ |
346 |
SV *sv_result; |
347 |
|
348 |
ENTER; |
349 |
SAVETMPS; |
350 |
PUSHMARK (SP); |
351 |
EXTEND (SP, 1); |
352 |
|
353 |
/* do not recreate the result IV from scratch each time */ |
354 |
if (expect_true (sv_result_cache)) |
355 |
{ |
356 |
sv_result = sv_result_cache; sv_result_cache = 0; |
357 |
SvIV_set (sv_result, req->result); |
358 |
SvIOK_only (sv_result); |
359 |
} |
360 |
else |
361 |
{ |
362 |
sv_result = newSViv (req->result); |
363 |
SvREADONLY_on (sv_result); |
364 |
} |
365 |
|
366 |
switch (req->type) |
367 |
{ |
368 |
case EIO_READDIR: |
369 |
{ |
370 |
SV *rv = &PL_sv_undef; |
371 |
|
372 |
if (req->result >= 0) |
373 |
{ |
374 |
int i; |
375 |
char *names = (char *)req->ptr2; |
376 |
eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */ |
377 |
AV *av = newAV (); |
378 |
|
379 |
av_extend (av, req->result - 1); |
380 |
|
381 |
for (i = 0; i < req->result; ++i) |
382 |
{ |
383 |
if (req->int1 & EIO_READDIR_DENTS) |
384 |
{ |
385 |
SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen); |
386 |
|
387 |
if (req->int1 & EIO_READDIR_CUSTOM2) |
388 |
{ |
389 |
static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */ |
390 |
AV *avent = newAV (); |
391 |
|
392 |
av_extend (avent, 2); |
393 |
|
394 |
if (!sv_type [ent->type]) |
395 |
{ |
396 |
sv_type [ent->type] = newSViv (ent->type); |
397 |
SvREADONLY_on (sv_type [ent->type]); |
398 |
} |
399 |
|
400 |
av_store (avent, 0, namesv); |
401 |
av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type])); |
402 |
av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode)); |
403 |
|
404 |
av_store (av, i, newRV_noinc ((SV *)avent)); |
405 |
} |
406 |
else |
407 |
av_store (av, i, namesv); |
408 |
|
409 |
++ent; |
410 |
} |
411 |
else |
412 |
{ |
413 |
SV *name = newSVpv (names, 0); |
414 |
av_store (av, i, name); |
415 |
names += SvCUR (name) + 1; |
416 |
} |
417 |
} |
418 |
|
419 |
rv = sv_2mortal (newRV_noinc ((SV *)av)); |
420 |
} |
421 |
|
422 |
PUSHs (rv); |
423 |
|
424 |
if (req->int1 & EIO_READDIR_CUSTOM1) |
425 |
XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2)))); |
426 |
} |
427 |
break; |
428 |
|
429 |
case EIO_OPEN: |
430 |
{ |
431 |
/* convert fd to fh */ |
432 |
SV *fh = &PL_sv_undef; |
433 |
|
434 |
if (req->result >= 0) |
435 |
{ |
436 |
GV *gv = (GV *)sv_newmortal (); |
437 |
int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR); |
438 |
char sym [64]; |
439 |
int symlen; |
440 |
|
441 |
symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result); |
442 |
gv_init (gv, aio_stash, sym, symlen, 0); |
443 |
|
444 |
symlen = snprintf ( |
445 |
sym, |
446 |
sizeof (sym), |
447 |
"%s&=%d", |
448 |
flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<", |
449 |
(int)req->result |
450 |
); |
451 |
|
452 |
if (do_open (gv, sym, symlen, 0, 0, 0, 0)) |
453 |
fh = (SV *)gv; |
454 |
} |
455 |
|
456 |
PUSHs (fh); |
457 |
} |
458 |
break; |
459 |
|
460 |
case EIO_STATVFS: |
461 |
case EIO_FSTATVFS: |
462 |
{ |
463 |
SV *rv = &PL_sv_undef; |
464 |
|
465 |
if (req->result >= 0) |
466 |
{ |
467 |
EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req); |
468 |
HV *hv = newHV (); |
469 |
|
470 |
rv = sv_2mortal (newRV_noinc ((SV *)hv)); |
471 |
|
472 |
hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0); |
473 |
hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0); |
474 |
hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0); |
475 |
hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0); |
476 |
hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0); |
477 |
hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0); |
478 |
hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0); |
479 |
hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0); |
480 |
hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0); |
481 |
hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0); |
482 |
hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0); |
483 |
} |
484 |
|
485 |
PUSHs (rv); |
486 |
} |
487 |
|
488 |
break; |
489 |
|
490 |
case EIO_GROUP: |
491 |
req->int1 = 2; /* mark group as finished */ |
492 |
|
493 |
if (req->sv1) |
494 |
{ |
495 |
int i; |
496 |
AV *av = (AV *)req->sv1; |
497 |
|
498 |
EXTEND (SP, AvFILL (av) + 1); |
499 |
for (i = 0; i <= AvFILL (av); ++i) |
500 |
PUSHs (*av_fetch (av, i, 0)); |
501 |
} |
502 |
break; |
503 |
|
504 |
case EIO_NOP: |
505 |
case EIO_BUSY: |
506 |
break; |
507 |
|
508 |
case EIO_READLINK: |
509 |
if (req->result > 0) |
510 |
PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result))); |
511 |
break; |
512 |
|
513 |
case EIO_STAT: |
514 |
case EIO_LSTAT: |
515 |
case EIO_FSTAT: |
516 |
PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT; |
517 |
PL_laststatval = req->result; |
518 |
PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2); |
519 |
PUSHs (sv_result); |
520 |
break; |
521 |
|
522 |
case EIO_READ: |
523 |
{ |
524 |
SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); |
525 |
*SvEND (req->sv2) = 0; |
526 |
SvPOK_only (req->sv2); |
527 |
SvSETMAGIC (req->sv2); |
528 |
PUSHs (sv_result); |
529 |
} |
530 |
break; |
531 |
|
532 |
case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */ |
533 |
if (req->result > 0) |
534 |
SvIV_set (sv_result, 0); |
535 |
/* FALLTHROUGH */ |
536 |
|
537 |
default: |
538 |
PUSHs (sv_result); |
539 |
break; |
540 |
} |
541 |
|
542 |
errno = req->errorno; |
543 |
|
544 |
PUTBACK; |
545 |
call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD); |
546 |
SPAGAIN; |
547 |
|
548 |
if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache)) |
549 |
SvREFCNT_dec (sv_result); |
550 |
else |
551 |
sv_result_cache = sv_result; |
552 |
|
553 |
FREETMPS; |
554 |
LEAVE; |
555 |
|
556 |
PUTBACK; |
557 |
} |
558 |
|
559 |
return !!SvTRUE (ERRSV); |
560 |
} |
561 |
|
562 |
static void req_destroy (aio_req req) |
563 |
{ |
564 |
if (req->self) |
565 |
{ |
566 |
sv_unmagic (req->self, PERL_MAGIC_ext); |
567 |
SvREFCNT_dec (req->self); |
568 |
} |
569 |
|
570 |
SvREFCNT_dec (req->sv1); |
571 |
SvREFCNT_dec (req->sv2); |
572 |
SvREFCNT_dec (req->callback); |
573 |
|
574 |
Safefree (req); |
575 |
} |
576 |
|
577 |
static void req_cancel_subs (aio_req grp) |
578 |
{ |
579 |
aio_req sub; |
580 |
|
581 |
if (grp->type != EIO_GROUP) |
582 |
return; |
583 |
|
584 |
SvREFCNT_dec (grp->sv2); |
585 |
grp->sv2 = 0; |
586 |
|
587 |
eio_grp_cancel (grp); |
588 |
} |
589 |
|
590 |
static void |
591 |
create_respipe (void) |
592 |
{ |
593 |
if (s_epipe_renew (&respipe)) |
594 |
croak ("IO::AIO: unable to initialize result pipe"); |
595 |
} |
596 |
|
597 |
static void poll_wait (void) |
598 |
{ |
599 |
while (eio_nreqs ()) |
600 |
{ |
601 |
int size; |
602 |
|
603 |
X_LOCK (reslock); |
604 |
size = res_queue.size; |
605 |
X_UNLOCK (reslock); |
606 |
|
607 |
if (size) |
608 |
return; |
609 |
|
610 |
etp_maybe_start_thread (); |
611 |
|
612 |
s_epipe_wait (&respipe); |
613 |
} |
614 |
} |
615 |
|
616 |
static int poll_cb (void) |
617 |
{ |
618 |
for (;;) |
619 |
{ |
620 |
int res = eio_poll (); |
621 |
|
622 |
if (res > 0) |
623 |
croak (0); |
624 |
|
625 |
if (!max_outstanding || max_outstanding > eio_nreqs ()) |
626 |
return res; |
627 |
|
628 |
poll_wait (); |
629 |
} |
630 |
} |
631 |
|
632 |
static void atfork_child (void) |
633 |
{ |
634 |
create_respipe (); |
635 |
} |
636 |
|
637 |
/*****************************************************************************/ |
638 |
|
639 |
#if !_POSIX_MAPPED_FILES |
640 |
# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1) |
641 |
# define munmap(addr,length) (errno = ENOSYS, -1) |
642 |
#endif |
643 |
|
644 |
#if !_POSIX_MEMORY_PROTECTION |
645 |
# define mprotect(addr,len,prot) (errno = ENOSYS, -1) |
646 |
# define PROT_NONE 0 |
647 |
# define PROT_WRITE 0 |
648 |
# define MAP_PRIVATE 0 |
649 |
# define MAP_SHARED 0 |
650 |
# define MAP_FIXED 0 |
651 |
#endif |
652 |
|
653 |
#define MMAP_MAGIC PERL_MAGIC_ext |
654 |
|
655 |
static int |
656 |
mmap_free (pTHX_ SV *sv, MAGIC *mg) |
657 |
{ |
658 |
int old_errno = errno; |
659 |
munmap (mg->mg_ptr, (size_t)mg->mg_obj); |
660 |
errno = old_errno; |
661 |
|
662 |
mg->mg_obj = 0; /* just in case */ |
663 |
|
664 |
SvREADONLY_off (sv); |
665 |
|
666 |
if (SvPVX (sv) != mg->mg_ptr) |
667 |
croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected"); |
668 |
|
669 |
SvCUR_set (sv, 0); |
670 |
SvPVX (sv) = 0; |
671 |
SvOK_off (sv); |
672 |
|
673 |
return 0; |
674 |
} |
675 |
|
676 |
static MGVTBL mmap_vtbl = { |
677 |
0, 0, 0, 0, mmap_free |
678 |
}; |
679 |
|
680 |
/*****************************************************************************/ |
681 |
|
682 |
static SV * |
683 |
get_cb (SV *cb_sv) |
684 |
{ |
685 |
SvGETMAGIC (cb_sv); |
686 |
return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0; |
687 |
} |
688 |
|
689 |
#define dREQ \ |
690 |
SV *cb_cv; \ |
691 |
aio_req req; \ |
692 |
int req_pri = next_pri; \ |
693 |
next_pri = EIO_PRI_DEFAULT; \ |
694 |
\ |
695 |
cb_cv = get_cb (callback); \ |
696 |
\ |
697 |
Newz (0, req, 1, eio_req); \ |
698 |
if (!req) \ |
699 |
croak ("out of memory during eio_req allocation"); \ |
700 |
\ |
701 |
req->callback = SvREFCNT_inc (cb_cv); \ |
702 |
req->pri = req_pri |
703 |
|
704 |
#define REQ_SEND \ |
705 |
PUTBACK; \ |
706 |
req_submit (req); \ |
707 |
SPAGAIN; \ |
708 |
\ |
709 |
if (GIMME_V != G_VOID) \ |
710 |
XPUSHs (req_sv (req, aio_req_stash)); |
711 |
|
712 |
MODULE = IO::AIO PACKAGE = IO::AIO |
713 |
|
714 |
PROTOTYPES: ENABLE |
715 |
|
716 |
BOOT: |
717 |
{ |
718 |
static const struct { |
719 |
const char *name; |
720 |
IV iv; |
721 |
} *civ, const_iv[] = { |
722 |
# define const_niv(name, value) { # name, (IV) value }, |
723 |
# define const_iv(name) { # name, (IV) name }, |
724 |
# define const_eio(name) { # name, (IV) EIO_ ## name }, |
725 |
const_iv (EXDEV) |
726 |
const_iv (ENOSYS) |
727 |
const_iv (O_RDONLY) |
728 |
const_iv (O_WRONLY) |
729 |
const_iv (O_RDWR) |
730 |
const_iv (O_CREAT) |
731 |
const_iv (O_TRUNC) |
732 |
const_iv (O_EXCL) |
733 |
const_iv (O_APPEND) |
734 |
#ifndef _WIN32 |
735 |
const_iv (S_IFIFO) |
736 |
#endif |
737 |
const_niv (FADV_NORMAL , POSIX_FADV_NORMAL) |
738 |
const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL) |
739 |
const_niv (FADV_RANDOM , POSIX_FADV_RANDOM) |
740 |
const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE) |
741 |
const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED) |
742 |
const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED) |
743 |
|
744 |
const_niv (MADV_NORMAL , POSIX_MADV_NORMAL) |
745 |
const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL) |
746 |
const_niv (MADV_RANDOM , POSIX_MADV_RANDOM) |
747 |
const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED) |
748 |
const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED) |
749 |
|
750 |
const_iv (ST_RDONLY) |
751 |
const_iv (ST_NOSUID) |
752 |
const_iv (ST_NODEV) |
753 |
const_iv (ST_NOEXEC) |
754 |
const_iv (ST_SYNCHRONOUS) |
755 |
const_iv (ST_MANDLOCK) |
756 |
const_iv (ST_WRITE) |
757 |
const_iv (ST_APPEND) |
758 |
const_iv (ST_IMMUTABLE) |
759 |
const_iv (ST_NOATIME) |
760 |
const_iv (ST_NODIRATIME) |
761 |
const_iv (ST_RELATIME) |
762 |
|
763 |
const_iv (PROT_NONE) |
764 |
const_iv (PROT_EXEC) |
765 |
const_iv (PROT_READ) |
766 |
const_iv (PROT_WRITE) |
767 |
|
768 |
/*const_iv (MAP_FIXED)*/ |
769 |
const_iv (MAP_PRIVATE) |
770 |
const_iv (MAP_SHARED) |
771 |
const_iv (MAP_ANONYMOUS) |
772 |
|
773 |
/* linuxish */ |
774 |
const_iv (MAP_HUGETLB) |
775 |
const_iv (MAP_LOCKED) |
776 |
const_iv (MAP_NORESERVE) |
777 |
const_iv (MAP_POPULATE) |
778 |
const_iv (MAP_NONBLOCK) |
779 |
|
780 |
const_eio (MCL_FUTURE) |
781 |
const_eio (MCL_CURRENT) |
782 |
|
783 |
const_eio (MS_ASYNC) |
784 |
const_eio (MS_INVALIDATE) |
785 |
const_eio (MS_SYNC) |
786 |
|
787 |
const_eio (MT_MODIFY) |
788 |
|
789 |
const_eio (SYNC_FILE_RANGE_WAIT_BEFORE) |
790 |
const_eio (SYNC_FILE_RANGE_WRITE) |
791 |
const_eio (SYNC_FILE_RANGE_WAIT_AFTER) |
792 |
|
793 |
const_eio (READDIR_DENTS) |
794 |
const_eio (READDIR_DIRS_FIRST) |
795 |
const_eio (READDIR_STAT_ORDER) |
796 |
const_eio (READDIR_FOUND_UNKNOWN) |
797 |
|
798 |
const_eio (DT_UNKNOWN) |
799 |
const_eio (DT_FIFO) |
800 |
const_eio (DT_CHR) |
801 |
const_eio (DT_DIR) |
802 |
const_eio (DT_BLK) |
803 |
const_eio (DT_REG) |
804 |
const_eio (DT_LNK) |
805 |
const_eio (DT_SOCK) |
806 |
const_eio (DT_WHT) |
807 |
}; |
808 |
|
809 |
aio_stash = gv_stashpv ("IO::AIO" , 1); |
810 |
aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1); |
811 |
aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1); |
812 |
|
813 |
for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; ) |
814 |
newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv)); |
815 |
|
816 |
newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE)); |
817 |
|
818 |
create_respipe (); |
819 |
|
820 |
if (eio_init (want_poll, done_poll) < 0) |
821 |
croak ("IO::AIO: unable to initialise eio library"); |
822 |
|
823 |
/* atfork child called in fifo order, so before eio's handler */ |
824 |
X_THREAD_ATFORK (0, 0, atfork_child); |
825 |
} |
826 |
|
827 |
void |
828 |
max_poll_reqs (int nreqs) |
829 |
PROTOTYPE: $ |
830 |
CODE: |
831 |
eio_set_max_poll_reqs (nreqs); |
832 |
|
833 |
void |
834 |
max_poll_time (double nseconds) |
835 |
PROTOTYPE: $ |
836 |
CODE: |
837 |
eio_set_max_poll_time (nseconds); |
838 |
|
839 |
void |
840 |
min_parallel (int nthreads) |
841 |
PROTOTYPE: $ |
842 |
CODE: |
843 |
eio_set_min_parallel (nthreads); |
844 |
|
845 |
void |
846 |
max_parallel (int nthreads) |
847 |
PROTOTYPE: $ |
848 |
CODE: |
849 |
eio_set_max_parallel (nthreads); |
850 |
|
851 |
void |
852 |
max_idle (int nthreads) |
853 |
PROTOTYPE: $ |
854 |
CODE: |
855 |
eio_set_max_idle (nthreads); |
856 |
|
857 |
void |
858 |
max_outstanding (int maxreqs) |
859 |
PROTOTYPE: $ |
860 |
CODE: |
861 |
max_outstanding = maxreqs; |
862 |
|
863 |
void |
864 |
aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) |
865 |
PPCODE: |
866 |
{ |
867 |
dREQ; |
868 |
|
869 |
req->type = EIO_OPEN; |
870 |
req->sv1 = newSVsv (pathname); |
871 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
872 |
req->int1 = flags; |
873 |
req->int2 = mode; |
874 |
|
875 |
REQ_SEND; |
876 |
} |
877 |
|
878 |
void |
879 |
aio_fsync (SV *fh, SV *callback=&PL_sv_undef) |
880 |
ALIAS: |
881 |
aio_fsync = EIO_FSYNC |
882 |
aio_fdatasync = EIO_FDATASYNC |
883 |
PPCODE: |
884 |
{ |
885 |
int fd = s_fileno_croak (fh, 0); |
886 |
dREQ; |
887 |
|
888 |
req->type = ix; |
889 |
req->sv1 = newSVsv (fh); |
890 |
req->int1 = fd; |
891 |
|
892 |
REQ_SEND (req); |
893 |
} |
894 |
|
895 |
void |
896 |
aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef) |
897 |
PPCODE: |
898 |
{ |
899 |
int fd = s_fileno_croak (fh, 0); |
900 |
dREQ; |
901 |
|
902 |
req->type = EIO_SYNC_FILE_RANGE; |
903 |
req->sv1 = newSVsv (fh); |
904 |
req->int1 = fd; |
905 |
req->offs = offset; |
906 |
req->size = nbytes; |
907 |
req->int2 = flags; |
908 |
|
909 |
REQ_SEND (req); |
910 |
} |
911 |
|
912 |
void |
913 |
aio_close (SV *fh, SV *callback=&PL_sv_undef) |
914 |
PPCODE: |
915 |
{ |
916 |
static int close_pipe = -1; /* dummy fd to close fds via dup2 */ |
917 |
int fd = s_fileno_croak (fh, 0); |
918 |
dREQ; |
919 |
|
920 |
if (close_pipe < 0) |
921 |
{ |
922 |
int pipefd [2]; |
923 |
|
924 |
if (pipe (pipefd) < 0 |
925 |
|| close (pipefd [1]) < 0 |
926 |
|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0) |
927 |
abort (); /*D*/ |
928 |
|
929 |
close_pipe = pipefd [0]; |
930 |
} |
931 |
|
932 |
req->type = EIO_DUP2; |
933 |
req->int1 = close_pipe; |
934 |
req->sv2 = newSVsv (fh); |
935 |
req->int2 = fd; |
936 |
|
937 |
REQ_SEND (req); |
938 |
} |
939 |
|
940 |
void |
941 |
aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef) |
942 |
ALIAS: |
943 |
aio_read = EIO_READ |
944 |
aio_write = EIO_WRITE |
945 |
PPCODE: |
946 |
{ |
947 |
STRLEN svlen; |
948 |
int fd = s_fileno_croak (fh, ix == EIO_WRITE); |
949 |
char *svptr = SvPVbyte (data, svlen); |
950 |
UV len = SvUV (length); |
951 |
|
952 |
if (dataoffset < 0) |
953 |
dataoffset += svlen; |
954 |
|
955 |
if (dataoffset < 0 || dataoffset > svlen) |
956 |
croak ("dataoffset outside of data scalar"); |
957 |
|
958 |
if (ix == EIO_WRITE) |
959 |
{ |
960 |
/* write: check length and adjust. */ |
961 |
if (!SvOK (length) || len + dataoffset > svlen) |
962 |
len = svlen - dataoffset; |
963 |
} |
964 |
else |
965 |
{ |
966 |
/* read: check type and grow scalar as necessary */ |
967 |
SvUPGRADE (data, SVt_PV); |
968 |
svptr = SvGROW (data, len + dataoffset + 1); |
969 |
} |
970 |
|
971 |
{ |
972 |
dREQ; |
973 |
|
974 |
req->type = ix; |
975 |
req->sv1 = newSVsv (fh); |
976 |
req->int1 = fd; |
977 |
req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
978 |
req->size = len; |
979 |
req->sv2 = SvREFCNT_inc (data); |
980 |
req->ptr2 = (char *)svptr + dataoffset; |
981 |
req->stroffset = dataoffset; |
982 |
|
983 |
if (!SvREADONLY (data)) |
984 |
{ |
985 |
SvREADONLY_on (data); |
986 |
req->flags |= FLAG_SV2_RO_OFF; |
987 |
} |
988 |
|
989 |
REQ_SEND; |
990 |
} |
991 |
} |
992 |
|
993 |
void |
994 |
aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) |
995 |
PPCODE: |
996 |
{ |
997 |
SV *data; |
998 |
dREQ; |
999 |
|
1000 |
req->type = EIO_READLINK; |
1001 |
req->sv1 = newSVsv (path); |
1002 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
1003 |
|
1004 |
REQ_SEND; |
1005 |
} |
1006 |
|
1007 |
void |
1008 |
aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef) |
1009 |
PPCODE: |
1010 |
{ |
1011 |
int ifd = s_fileno_croak (in_fh , 0); |
1012 |
int ofd = s_fileno_croak (out_fh, 1); |
1013 |
dREQ; |
1014 |
|
1015 |
req->type = EIO_SENDFILE; |
1016 |
req->sv1 = newSVsv (out_fh); |
1017 |
req->int1 = ofd; |
1018 |
req->sv2 = newSVsv (in_fh); |
1019 |
req->int2 = ifd; |
1020 |
req->offs = in_offset; |
1021 |
req->size = length; |
1022 |
|
1023 |
REQ_SEND; |
1024 |
} |
1025 |
|
1026 |
void |
1027 |
aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef) |
1028 |
PPCODE: |
1029 |
{ |
1030 |
int fd = s_fileno_croak (fh, 0); |
1031 |
dREQ; |
1032 |
|
1033 |
req->type = EIO_READAHEAD; |
1034 |
req->sv1 = newSVsv (fh); |
1035 |
req->int1 = fd; |
1036 |
req->offs = offset; |
1037 |
req->size = length; |
1038 |
|
1039 |
REQ_SEND; |
1040 |
} |
1041 |
|
1042 |
void |
1043 |
aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) |
1044 |
ALIAS: |
1045 |
aio_stat = EIO_STAT |
1046 |
aio_lstat = EIO_LSTAT |
1047 |
aio_statvfs = EIO_STATVFS |
1048 |
PPCODE: |
1049 |
{ |
1050 |
dREQ; |
1051 |
|
1052 |
req->sv1 = newSVsv (fh_or_path); |
1053 |
|
1054 |
if (SvPOK (req->sv1)) |
1055 |
{ |
1056 |
req->type = ix; |
1057 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
1058 |
} |
1059 |
else |
1060 |
{ |
1061 |
req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT; |
1062 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1063 |
} |
1064 |
|
1065 |
REQ_SEND; |
1066 |
} |
1067 |
|
1068 |
void |
1069 |
aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) |
1070 |
PPCODE: |
1071 |
{ |
1072 |
dREQ; |
1073 |
|
1074 |
req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; |
1075 |
req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; |
1076 |
req->sv1 = newSVsv (fh_or_path); |
1077 |
|
1078 |
if (SvPOK (req->sv1)) |
1079 |
{ |
1080 |
req->type = EIO_UTIME; |
1081 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
1082 |
} |
1083 |
else |
1084 |
{ |
1085 |
req->type = EIO_FUTIME; |
1086 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1087 |
} |
1088 |
|
1089 |
REQ_SEND; |
1090 |
} |
1091 |
|
1092 |
void |
1093 |
aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef) |
1094 |
PPCODE: |
1095 |
{ |
1096 |
dREQ; |
1097 |
|
1098 |
req->sv1 = newSVsv (fh_or_path); |
1099 |
req->offs = SvOK (offset) ? SvVAL64 (offset) : -1; |
1100 |
|
1101 |
if (SvPOK (req->sv1)) |
1102 |
{ |
1103 |
req->type = EIO_TRUNCATE; |
1104 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
1105 |
} |
1106 |
else |
1107 |
{ |
1108 |
req->type = EIO_FTRUNCATE; |
1109 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1110 |
} |
1111 |
|
1112 |
REQ_SEND; |
1113 |
} |
1114 |
|
1115 |
void |
1116 |
aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) |
1117 |
ALIAS: |
1118 |
aio_chmod = EIO_CHMOD |
1119 |
aio_mkdir = EIO_MKDIR |
1120 |
PPCODE: |
1121 |
{ |
1122 |
dREQ; |
1123 |
|
1124 |
req->int2 = mode; |
1125 |
req->sv1 = newSVsv (fh_or_path); |
1126 |
|
1127 |
if (SvPOK (req->sv1)) |
1128 |
{ |
1129 |
req->type = ix; |
1130 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
1131 |
} |
1132 |
else |
1133 |
{ |
1134 |
req->type = EIO_FCHMOD; |
1135 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1136 |
} |
1137 |
|
1138 |
REQ_SEND; |
1139 |
} |
1140 |
|
1141 |
void |
1142 |
aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) |
1143 |
PPCODE: |
1144 |
{ |
1145 |
dREQ; |
1146 |
|
1147 |
req->int2 = SvOK (uid) ? SvIV (uid) : -1; |
1148 |
req->int3 = SvOK (gid) ? SvIV (gid) : -1; |
1149 |
req->sv1 = newSVsv (fh_or_path); |
1150 |
|
1151 |
if (SvPOK (req->sv1)) |
1152 |
{ |
1153 |
req->type = EIO_CHOWN; |
1154 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
1155 |
} |
1156 |
else |
1157 |
{ |
1158 |
req->type = EIO_FCHOWN; |
1159 |
req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); |
1160 |
} |
1161 |
|
1162 |
REQ_SEND; |
1163 |
} |
1164 |
|
1165 |
void |
1166 |
aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef) |
1167 |
PPCODE: |
1168 |
{ |
1169 |
dREQ; |
1170 |
|
1171 |
req->type = EIO_READDIR; |
1172 |
req->sv1 = newSVsv (pathname); |
1173 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
1174 |
req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1; |
1175 |
|
1176 |
if (flags & EIO_READDIR_DENTS) |
1177 |
req->int1 |= EIO_READDIR_CUSTOM2; |
1178 |
|
1179 |
REQ_SEND; |
1180 |
} |
1181 |
|
1182 |
void |
1183 |
aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) |
1184 |
ALIAS: |
1185 |
aio_unlink = EIO_UNLINK |
1186 |
aio_rmdir = EIO_RMDIR |
1187 |
aio_readdir = EIO_READDIR |
1188 |
PPCODE: |
1189 |
{ |
1190 |
dREQ; |
1191 |
|
1192 |
req->type = ix; |
1193 |
req->sv1 = newSVsv (pathname); |
1194 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
1195 |
|
1196 |
REQ_SEND; |
1197 |
} |
1198 |
|
1199 |
void |
1200 |
aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) |
1201 |
ALIAS: |
1202 |
aio_link = EIO_LINK |
1203 |
aio_symlink = EIO_SYMLINK |
1204 |
aio_rename = EIO_RENAME |
1205 |
PPCODE: |
1206 |
{ |
1207 |
dREQ; |
1208 |
|
1209 |
req->type = ix; |
1210 |
req->sv1 = newSVsv (oldpath); |
1211 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
1212 |
req->sv2 = newSVsv (newpath); |
1213 |
req->ptr2 = SvPVbyte_nolen (req->sv2); |
1214 |
|
1215 |
REQ_SEND; |
1216 |
} |
1217 |
|
1218 |
void |
1219 |
aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) |
1220 |
PPCODE: |
1221 |
{ |
1222 |
dREQ; |
1223 |
|
1224 |
req->type = EIO_MKNOD; |
1225 |
req->sv1 = newSVsv (pathname); |
1226 |
req->ptr1 = SvPVbyte_nolen (req->sv1); |
1227 |
req->int2 = (mode_t)mode; |
1228 |
req->offs = dev; |
1229 |
|
1230 |
REQ_SEND; |
1231 |
} |
1232 |
|
1233 |
void |
1234 |
aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef) |
1235 |
ALIAS: |
1236 |
aio_mtouch = EIO_MTOUCH |
1237 |
aio_msync = EIO_MSYNC |
1238 |
PPCODE: |
1239 |
{ |
1240 |
STRLEN svlen; |
1241 |
char *svptr = SvPVbyte (data, svlen); |
1242 |
UV len = SvUV (length); |
1243 |
|
1244 |
if (offset < 0) |
1245 |
offset += svlen; |
1246 |
|
1247 |
if (offset < 0 || offset > svlen) |
1248 |
croak ("offset outside of scalar"); |
1249 |
|
1250 |
if (!SvOK (length) || len + offset > svlen) |
1251 |
len = svlen - offset; |
1252 |
|
1253 |
{ |
1254 |
dREQ; |
1255 |
|
1256 |
req->type = ix; |
1257 |
req->sv2 = SvREFCNT_inc (data); |
1258 |
req->ptr2 = (char *)svptr + offset; |
1259 |
req->size = len; |
1260 |
req->int1 = flags; |
1261 |
|
1262 |
REQ_SEND; |
1263 |
} |
1264 |
} |
1265 |
|
1266 |
void |
1267 |
aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef) |
1268 |
PPCODE: |
1269 |
{ |
1270 |
STRLEN svlen; |
1271 |
char *svptr = SvPVbyte (data, svlen); |
1272 |
UV len = SvUV (length); |
1273 |
|
1274 |
if (offset < 0) |
1275 |
offset += svlen; |
1276 |
|
1277 |
if (offset < 0 || offset > svlen) |
1278 |
croak ("offset outside of scalar"); |
1279 |
|
1280 |
if (!SvOK (length) || len + offset > svlen) |
1281 |
len = svlen - offset; |
1282 |
|
1283 |
{ |
1284 |
dREQ; |
1285 |
|
1286 |
req->type = EIO_MLOCK; |
1287 |
req->sv2 = SvREFCNT_inc (data); |
1288 |
req->ptr2 = (char *)svptr + offset; |
1289 |
req->size = len; |
1290 |
|
1291 |
REQ_SEND; |
1292 |
} |
1293 |
} |
1294 |
|
1295 |
void |
1296 |
aio_mlockall (IV flags, SV *callback=&PL_sv_undef) |
1297 |
PPCODE: |
1298 |
{ |
1299 |
dREQ; |
1300 |
|
1301 |
req->type = EIO_MLOCKALL; |
1302 |
req->int1 = flags; |
1303 |
|
1304 |
REQ_SEND; |
1305 |
} |
1306 |
|
1307 |
void |
1308 |
aio_busy (double delay, SV *callback=&PL_sv_undef) |
1309 |
PPCODE: |
1310 |
{ |
1311 |
dREQ; |
1312 |
|
1313 |
req->type = EIO_BUSY; |
1314 |
req->nv1 = delay < 0. ? 0. : delay; |
1315 |
|
1316 |
REQ_SEND; |
1317 |
} |
1318 |
|
1319 |
void |
1320 |
aio_group (SV *callback=&PL_sv_undef) |
1321 |
PPCODE: |
1322 |
{ |
1323 |
dREQ; |
1324 |
|
1325 |
req->type = EIO_GROUP; |
1326 |
|
1327 |
req_submit (req); |
1328 |
XPUSHs (req_sv (req, aio_grp_stash)); |
1329 |
} |
1330 |
|
1331 |
void |
1332 |
aio_nop (SV *callback=&PL_sv_undef) |
1333 |
ALIAS: |
1334 |
aio_nop = EIO_NOP |
1335 |
aio_sync = EIO_SYNC |
1336 |
PPCODE: |
1337 |
{ |
1338 |
dREQ; |
1339 |
|
1340 |
req->type = ix; |
1341 |
|
1342 |
REQ_SEND; |
1343 |
} |
1344 |
|
1345 |
int |
1346 |
aioreq_pri (int pri = 0) |
1347 |
CODE: |
1348 |
RETVAL = next_pri; |
1349 |
if (items > 0) |
1350 |
{ |
1351 |
if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN; |
1352 |
if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX; |
1353 |
next_pri = pri; |
1354 |
} |
1355 |
OUTPUT: |
1356 |
RETVAL |
1357 |
|
1358 |
void |
1359 |
aioreq_nice (int nice = 0) |
1360 |
CODE: |
1361 |
nice = next_pri - nice; |
1362 |
if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN; |
1363 |
if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX; |
1364 |
next_pri = nice; |
1365 |
|
1366 |
void |
1367 |
flush () |
1368 |
CODE: |
1369 |
while (eio_nreqs ()) |
1370 |
{ |
1371 |
poll_wait (); |
1372 |
poll_cb (); |
1373 |
} |
1374 |
|
1375 |
int |
1376 |
poll () |
1377 |
CODE: |
1378 |
poll_wait (); |
1379 |
RETVAL = poll_cb (); |
1380 |
OUTPUT: |
1381 |
RETVAL |
1382 |
|
1383 |
int |
1384 |
poll_fileno () |
1385 |
CODE: |
1386 |
RETVAL = s_epipe_fd (&respipe); |
1387 |
OUTPUT: |
1388 |
RETVAL |
1389 |
|
1390 |
int |
1391 |
poll_cb (...) |
1392 |
PROTOTYPE: |
1393 |
CODE: |
1394 |
RETVAL = poll_cb (); |
1395 |
OUTPUT: |
1396 |
RETVAL |
1397 |
|
1398 |
void |
1399 |
poll_wait () |
1400 |
CODE: |
1401 |
poll_wait (); |
1402 |
|
1403 |
int |
1404 |
nreqs () |
1405 |
CODE: |
1406 |
RETVAL = eio_nreqs (); |
1407 |
OUTPUT: |
1408 |
RETVAL |
1409 |
|
1410 |
int |
1411 |
nready () |
1412 |
CODE: |
1413 |
RETVAL = eio_nready (); |
1414 |
OUTPUT: |
1415 |
RETVAL |
1416 |
|
1417 |
int |
1418 |
npending () |
1419 |
CODE: |
1420 |
RETVAL = eio_npending (); |
1421 |
OUTPUT: |
1422 |
RETVAL |
1423 |
|
1424 |
int |
1425 |
nthreads () |
1426 |
CODE: |
1427 |
RETVAL = eio_nthreads (); |
1428 |
OUTPUT: |
1429 |
RETVAL |
1430 |
|
1431 |
int |
1432 |
fadvise (aio_rfd fh, off_t offset, off_t length, IV advice) |
1433 |
CODE: |
1434 |
RETVAL = posix_fadvise (fh, offset, length, advice); |
1435 |
OUTPUT: |
1436 |
RETVAL |
1437 |
|
1438 |
ssize_t |
1439 |
sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count) |
1440 |
CODE: |
1441 |
RETVAL = eio_sendfile_sync (ofh, ifh, offset, count); |
1442 |
OUTPUT: |
1443 |
RETVAL |
1444 |
|
1445 |
void |
1446 |
mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0) |
1447 |
PPCODE: |
1448 |
sv_unmagic (scalar, MMAP_MAGIC); |
1449 |
{ |
1450 |
int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1; |
1451 |
void *addr = (void *)mmap (0, length, prot, flags, fd, offset); |
1452 |
if (addr == (void *)-1) |
1453 |
XSRETURN_NO; |
1454 |
|
1455 |
sv_force_normal (scalar); |
1456 |
|
1457 |
/* we store the length in mg_obj, as namlen is I32 :/ */ |
1458 |
sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0) |
1459 |
->mg_obj = (SV *)length; |
1460 |
|
1461 |
SvUPGRADE (scalar, SVt_PV); /* nop... */ |
1462 |
|
1463 |
if (!(prot & PROT_WRITE)) |
1464 |
SvREADONLY_on (scalar); |
1465 |
|
1466 |
if (SvLEN (scalar)) |
1467 |
Safefree (SvPVX (scalar)); |
1468 |
|
1469 |
SvPVX (scalar) = (char *)addr; |
1470 |
SvCUR_set (scalar, length); |
1471 |
SvLEN_set (scalar, 0); |
1472 |
SvPOK_only (scalar); |
1473 |
|
1474 |
XSRETURN_YES; |
1475 |
} |
1476 |
|
1477 |
void |
1478 |
munmap (SV *scalar) |
1479 |
CODE: |
1480 |
sv_unmagic (scalar, MMAP_MAGIC); |
1481 |
|
1482 |
int |
1483 |
madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot) |
1484 |
ALIAS: |
1485 |
mprotect = 1 |
1486 |
CODE: |
1487 |
{ |
1488 |
STRLEN svlen; |
1489 |
void *addr = SvPVbyte (scalar, svlen); |
1490 |
size_t len = SvUV (length); |
1491 |
|
1492 |
if (offset < 0) |
1493 |
offset += svlen; |
1494 |
|
1495 |
if (offset < 0 || offset > svlen) |
1496 |
croak ("offset outside of scalar"); |
1497 |
|
1498 |
if (!SvOK (length) || len + offset > svlen) |
1499 |
len = svlen - offset; |
1500 |
|
1501 |
addr = (void *)(((intptr_t)addr) + offset); |
1502 |
eio_page_align (&addr, &len); |
1503 |
|
1504 |
switch (ix) |
1505 |
{ |
1506 |
case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break; |
1507 |
case 1: RETVAL = mprotect (addr, len, advice_or_prot); break; |
1508 |
} |
1509 |
} |
1510 |
OUTPUT: |
1511 |
RETVAL |
1512 |
|
1513 |
int |
1514 |
munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef) |
1515 |
CODE: |
1516 |
{ |
1517 |
STRLEN svlen; |
1518 |
void *addr = SvPVbyte (scalar, svlen); |
1519 |
size_t len = SvUV (length); |
1520 |
|
1521 |
if (offset < 0) |
1522 |
offset += svlen; |
1523 |
|
1524 |
if (offset < 0 || offset > svlen) |
1525 |
croak ("offset outside of scalar"); |
1526 |
|
1527 |
if (!SvOK (length) || len + offset > svlen) |
1528 |
len = svlen - offset; |
1529 |
|
1530 |
addr = (void *)(((intptr_t)addr) + offset); |
1531 |
eio_page_align (&addr, &len); |
1532 |
#if _POSIX_MEMLOCK_RANGE |
1533 |
RETVAL = munlock (addr, len); |
1534 |
#else |
1535 |
RETVAL = ((errno = ENOSYS), -1); |
1536 |
#endif |
1537 |
} |
1538 |
OUTPUT: |
1539 |
RETVAL |
1540 |
|
1541 |
int |
1542 |
munlockall () |
1543 |
CODE: |
1544 |
#if _POSIX_MEMLOCK |
1545 |
munlockall (); |
1546 |
#else |
1547 |
RETVAL = -1; |
1548 |
errno = ENOSYS; |
1549 |
#endif |
1550 |
OUTPUT: |
1551 |
RETVAL |
1552 |
|
1553 |
void _on_next_submit (SV *cb) |
1554 |
CODE: |
1555 |
SvREFCNT_dec (on_next_submit); |
1556 |
on_next_submit = SvOK (cb) ? newSVsv (cb) : 0; |
1557 |
|
1558 |
PROTOTYPES: DISABLE |
1559 |
|
1560 |
MODULE = IO::AIO PACKAGE = IO::AIO::REQ |
1561 |
|
1562 |
void |
1563 |
cancel (aio_req_ornot req) |
1564 |
CODE: |
1565 |
eio_cancel (req); |
1566 |
|
1567 |
void |
1568 |
cb (aio_req_ornot req, SV *callback=&PL_sv_undef) |
1569 |
PPCODE: |
1570 |
{ |
1571 |
if (GIMME_V != G_VOID) |
1572 |
XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef); |
1573 |
|
1574 |
if (items > 1) |
1575 |
{ |
1576 |
SV *cb_cv =get_cb (callback); |
1577 |
|
1578 |
SvREFCNT_dec (req->callback); |
1579 |
req->callback = SvREFCNT_inc (cb_cv); |
1580 |
} |
1581 |
} |
1582 |
|
1583 |
MODULE = IO::AIO PACKAGE = IO::AIO::GRP |
1584 |
|
1585 |
void |
1586 |
add (aio_req grp, ...) |
1587 |
PPCODE: |
1588 |
{ |
1589 |
int i; |
1590 |
|
1591 |
if (grp->int1 == 2) |
1592 |
croak ("cannot add requests to IO::AIO::GRP after the group finished"); |
1593 |
|
1594 |
for (i = 1; i < items; ++i ) |
1595 |
{ |
1596 |
aio_req req; |
1597 |
|
1598 |
if (GIMME_V != G_VOID) |
1599 |
XPUSHs (sv_2mortal (newSVsv (ST (i)))); |
1600 |
|
1601 |
req = SvAIO_REQ (ST (i)); |
1602 |
|
1603 |
if (req) |
1604 |
eio_grp_add (grp, req); |
1605 |
} |
1606 |
} |
1607 |
|
1608 |
void |
1609 |
cancel_subs (aio_req_ornot req) |
1610 |
CODE: |
1611 |
req_cancel_subs (req); |
1612 |
|
1613 |
void |
1614 |
result (aio_req grp, ...) |
1615 |
CODE: |
1616 |
{ |
1617 |
int i; |
1618 |
AV *av; |
1619 |
|
1620 |
grp->errorno = errno; |
1621 |
|
1622 |
av = newAV (); |
1623 |
av_extend (av, items - 1); |
1624 |
|
1625 |
for (i = 1; i < items; ++i ) |
1626 |
av_push (av, newSVsv (ST (i))); |
1627 |
|
1628 |
SvREFCNT_dec (grp->sv1); |
1629 |
grp->sv1 = (SV *)av; |
1630 |
} |
1631 |
|
1632 |
void |
1633 |
errno (aio_req grp, int errorno = errno) |
1634 |
CODE: |
1635 |
grp->errorno = errorno; |
1636 |
|
1637 |
void |
1638 |
limit (aio_req grp, int limit) |
1639 |
CODE: |
1640 |
eio_grp_limit (grp, limit); |
1641 |
|
1642 |
void |
1643 |
feed (aio_req grp, SV *callback=&PL_sv_undef) |
1644 |
CODE: |
1645 |
{ |
1646 |
SvREFCNT_dec (grp->sv2); |
1647 |
grp->sv2 = newSVsv (callback); |
1648 |
grp->feed = aio_grp_feed; |
1649 |
|
1650 |
if (grp->int2 <= 0) |
1651 |
grp->int2 = 2; |
1652 |
|
1653 |
eio_grp_limit (grp, grp->int2); |
1654 |
} |
1655 |
|