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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.61 by root, Mon Oct 23 22:44:21 2006 UTC vs.
Revision 1.286 by root, Tue Dec 29 15:25:26 2020 UTC

1#define _REENTRANT 1 1#include "libeio/xthread.h"
2
2#include <errno.h> 3#include <errno.h>
3 4
4#include "EXTERN.h" 5#include "EXTERN.h"
5#include "perl.h" 6#include "perl.h"
6#include "XSUB.h" 7#include "XSUB.h"
8#include "perliol.h"
7 9
8#include "autoconf/config.h" 10#if !defined mg_findext
9 11# define mg_findext(sv,type,vtbl) mg_find (sv, type)
10#include <pthread.h> 12#endif
11 13
12#include <stddef.h> 14#include <stddef.h>
15#include <stdlib.h>
13#include <errno.h> 16#include <errno.h>
14#include <sys/time.h>
15#include <sys/select.h>
16#include <sys/types.h> 17#include <sys/types.h>
18#include <sys/socket.h>
17#include <sys/stat.h> 19#include <sys/stat.h>
18#include <limits.h> 20#include <limits.h>
19#include <unistd.h>
20#include <fcntl.h> 21#include <fcntl.h>
21#include <signal.h>
22#include <sched.h> 22#include <sched.h>
23 23
24#if HAVE_SENDFILE 24/* the incompetent fool that created musl keeps __linux__, refuses
25# if __linux 25 * to implement any linux standard apis, and also has no way to test
26 * for his broken iplementation. don't complain to me if this fails
27 * for you.
28 */
29#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
30# include <linux/fs.h>
31# ifdef FS_IOC_FIEMAP
32# include <linux/types.h>
33# include <linux/fiemap.h>
34# define HAVE_FIEMAP 1
35# endif
36#endif
37
38/* perl namespace pollution */
39#undef VERSION
40
41/* perl stupidly overrides readdir and maybe others */
42/* with thread-unsafe versions, imagine that :( */
43#undef readdir
44#undef opendir
45#undef closedir
46
47#ifdef _WIN32
48
49 // perl overrides all those nice libc functions
50
51 #undef malloc
52 #undef free
53 #undef open
54 #undef read
55 #undef write
56 #undef send
57 #undef recv
58 #undef stat
59 #undef lstat
60 #undef fstat
61 #undef truncate
62 #undef ftruncate
63 #undef open
64 #undef link
65 #undef close
66 #undef unlink
67 #undef mkdir
68 #undef rmdir
69 #undef rename
70 #undef lseek
71 #undef opendir
72 #undef readdir
73 #undef closedir
74 #undef chmod
75 #undef fchmod
76 #undef dup
77 #undef dup2
78 #undef abort
79 #undef pipe
80 #undef utime
81
82 #define EIO_STRUCT_STAT struct _stati64
83 #define EIO_STRUCT_STATI64
84
85#else
86
87 #include <sys/time.h>
26# include <sys/sendfile.h> 88 #include <sys/select.h>
27# elif __freebsd 89 #include <unistd.h>
90 #include <utime.h>
91 #include <signal.h>
92
93 #define EIO_STRUCT_STAT Stat_t
94
95#endif
96
97/*****************************************************************************/
98
99#if __GNUC__ >= 3
100# define expect(expr,value) __builtin_expect ((expr),(value))
101#else
102# define expect(expr,value) (expr)
103#endif
104
105#define expect_false(expr) expect ((expr) != 0, 0)
106#define expect_true(expr) expect ((expr) != 0, 1)
107
108/*****************************************************************************/
109
110#include "config.h"
111
112#if HAVE_SYS_MKDEV_H
28# include <sys/socket.h> 113# include <sys/mkdev.h>
114#elif HAVE_SYS_SYSMACROS_H
115# include <sys/sysmacros.h>
116#endif
117
118#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
119# include <sys/mman.h>
120#endif
121
122#if HAVE_SYS_UIO_H
29# include <sys/uio.h> 123# include <sys/uio.h>
30# elif __hpux 124#endif
31# include <sys/socket.h> 125
32# elif __solaris /* not yet */ 126#if HAVE_ST_XTIMENSEC
127# define ATIMENSEC PL_statcache.st_atimensec
128# define MTIMENSEC PL_statcache.st_mtimensec
129# define CTIMENSEC PL_statcache.st_ctimensec
130#elif HAVE_ST_XTIMESPEC
131# define ATIMENSEC PL_statcache.st_atim.tv_nsec
132# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
133# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
134#else
135# define ATIMENSEC 0
136# define MTIMENSEC 0
137# define CTIMENSEC 0
138#endif
139
140#if HAVE_ST_BIRTHTIMENSEC
141# define BTIMESEC PL_statcache.st_birthtime
142# define BTIMENSEC PL_statcache.st_birthtimensec
143#elif HAVE_ST_BIRTHTIMESPEC
144# define BTIMESEC PL_statcache.st_birthtim.tv_sec
145# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
146#else
147# define BTIMESEC 0
148# define BTIMENSEC 0
149#endif
150
151#if HAVE_ST_GEN
152# define ST_GEN PL_statcache.st_gen
153#else
154# define ST_GEN 0
155#endif
156
157#include "schmorp.h"
158
159#if HAVE_EVENTFD
33# include <sys/sendfile.h> 160# include <sys/eventfd.h>
161#endif
162
163#if HAVE_TIMERFD
164# include <sys/timerfd.h>
165#endif
166
167#if HAVE_RLIMITS
168 #include <sys/time.h>
169 #include <sys/resource.h>
170#endif
171
172typedef SV SV8; /* byte-sv, used for argument-checking */
173typedef int aio_rfd; /* read file desriptor */
174typedef int aio_wfd; /* write file descriptor */
175
176static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
177
178#define EIO_REQ_MEMBERS \
179 SV *callback; \
180 SV *sv1, *sv2; \
181 SV *sv3, *sv4; \
182 STRLEN stroffset; \
183 SV *self;
184
185#define EIO_NO_WRAPPERS 1
186
187#include "libeio/eio.h"
188
189static int req_invoke (eio_req *req);
190#define EIO_FINISH(req) req_invoke (req)
191static void req_destroy (eio_req *grp);
192#define EIO_DESTROY(req) req_destroy (req)
193
194#include "libeio/eio.c"
195
196#if !HAVE_POSIX_FADVISE
197# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
198#endif
199
200#if !HAVE_POSIX_MADVISE
201# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
202#endif
203
204#ifndef MAP_ANONYMOUS
205# ifdef MAP_ANON
206# define MAP_ANONYMOUS MAP_ANON
34# else 207# else
35# error sendfile support requested but not available 208# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
36# endif 209# endif
37#endif 210#endif
38 211
39/* used for struct dirent, AIX doesn't provide it */ 212#ifndef makedev
40#ifndef NAME_MAX 213# define makedev(maj,min) (((maj) << 8) | (min))
41# define NAME_MAX 4096
42#endif 214#endif
215#ifndef major
216# define major(dev) ((dev) >> 8)
217#endif
218#ifndef minor
219# define minor(dev) ((dev) & 0xff)
220#endif
43 221
44#if __ia64 222/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
45# define STACKSIZE 65536 223#ifdef __sun
224# undef PAGESIZE
225#endif
226
227#if PAGESIZE <= 0
228# define PAGESIZE sysconf (_SC_PAGESIZE)
229#endif
230
231#if HAVE_SYSCALL
232#include <sys/syscall.h>
46#else 233#else
47# define STACKSIZE 8192 234# define syscall(nr,...) (errno = ENOSYS, -1)
235#endif
236
237/*****************************************************************************/
238
239#if !_POSIX_MAPPED_FILES
240# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
241# define munmap(addr,length) EIO_ENOSYS ()
242#endif
243
244#if !_POSIX_MEMORY_PROTECTION
245# define mprotect(addr,len,prot) EIO_ENOSYS ()
246#endif
247
248#if !MREMAP_MAYMOVE
249# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
250#endif
251
252#define FOREIGN_MAGIC PERL_MAGIC_ext
253
254static int ecb_cold
255mmap_free (pTHX_ SV *sv, MAGIC *mg)
256{
257 int old_errno = errno;
258 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
259 errno = old_errno;
260
261 mg->mg_obj = 0; /* just in case */
262
263 SvREADONLY_off (sv);
264
265 if (SvPVX (sv) != mg->mg_ptr)
266 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
267
268 SvCUR_set (sv, 0);
269 SvPVX (sv) = 0;
270 SvOK_off (sv);
271
272 return 0;
273}
274
275static MGVTBL mmap_vtbl = {
276 0, 0, 0, 0, mmap_free
277};
278
279static int ecb_cold
280sysfree_free (pTHX_ SV *sv, MAGIC *mg)
281{
282 free (mg->mg_ptr);
283 mg->mg_obj = 0; /* just in case */
284
285 SvREADONLY_off (sv);
286
287 if (SvPVX (sv) != mg->mg_ptr)
288 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
289
290 SvCUR_set (sv, 0);
291 SvPVX (sv) = 0;
292 SvOK_off (sv);
293
294 return 0;
295}
296
297static MGVTBL sysfree_vtbl = {
298 0, 0, 0, 0, sysfree_free
299};
300
301/*****************************************************************************/
302
303/* helper: set scalar to foreign ptr with custom free */
304ecb_noinline
305static void
306sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
307{
308 sv_force_normal (sv);
309
310 /* we store the length in mg_obj, as namlen is I32 :/ */
311 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
312 ->mg_obj = (SV *)length;
313
314 SvUPGRADE (sv, SVt_PV); /* nop... */
315
316 if (SvLEN (sv))
317 Safefree (SvPVX (sv));
318
319 SvPVX (sv) = (char *)addr;
320 SvCUR_set (sv, length);
321 SvLEN_set (sv, 0);
322 SvPOK_only (sv);
323}
324
325static void
326sv_clear_foreign (SV *sv)
327{
328 /* todo: iterate over magic and only free ours, but of course */
329 /* the perl5porters will call that (correct) behaviour buggy */
330 sv_unmagic (sv, FOREIGN_MAGIC);
331}
332
333/*****************************************************************************/
334
335/* defines all sorts of constants to 0 unless they are already defined */
336/* also provides const_iv_ and const_niv_ macros for them */
337#include "def0.h"
338
339/*****************************************************************************/
340
341static void
342fiemap (eio_req *req)
343{
344 req->result = -1;
345
346#if HAVE_FIEMAP
347 /* assume some c99 */
348 struct fiemap *fiemap = 0;
349 size_t end_offset;
350 int count = req->int3;
351
352 req->flags |= EIO_FLAG_PTR1_FREE;
353
354 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
355 /* increase in fixed steps */
356 if (count < 0)
357 count = 8;
358
359 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
360 errno = ENOMEM;
361 if (!fiemap)
362 return;
363
364 req->ptr1 = fiemap;
365
366 fiemap->fm_start = req->offs;
367 fiemap->fm_length = req->size;
368 fiemap->fm_flags = req->int2;
369 fiemap->fm_extent_count = count;
370
371 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
372 return;
373
374 if (req->int3 >= 0 /* not autosizing */
375 || !fiemap->fm_mapped_extents /* no more extents */
376 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
377 goto done;
378
379 /* else we have to loop -
380 * it would be tempting (actually I tried that first) to just query the
381 * number of extents needed, but linux often feels like not returning all
382 * extents, without telling us it left any out. this complicates
383 * this quite a bit.
384 */
385
386 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
387
388 for (;;)
389 {
390 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
391 char scratch[3072];
392 struct fiemap *incmap = (struct fiemap *)scratch;
393
394 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
395 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
396 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
397 incmap->fm_flags = fiemap->fm_flags;
398 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
399
400 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
401 return;
402
403 if (!incmap->fm_mapped_extents)
404 goto done;
405
406 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
407 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
408 errno = ENOMEM;
409 if (!fiemap)
410 return;
411
412 req->ptr1 = fiemap;
413
414 for (count = 0; count < incmap->fm_mapped_extents; ++count)
415 {
416 struct fiemap_extent *e = incmap->fm_extents + count;
417
418 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
419
420 if (e->fe_logical >= end_offset)
421 goto done;
422
423 if (e->fe_flags & FIEMAP_EXTENT_LAST)
424 goto done;
425
426 }
427 }
428
429done:
430 req->result = 0;
431
432#else
433 errno = ENOSYS;
434#endif
435}
436
437/*****************************************************************************/
438
439static int close_fd; /* dummy fd to close fds via dup2 */
440
441#if HAVE_STATX
442static struct statx stx;
443#define statx_offsetof(member) offsetof (struct statx, member)
444#define eio__statx statx
445#else
446#define statx_offsetof(member) 0
447#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
48#endif 448#endif
49 449
50enum { 450enum {
51 REQ_QUIT, 451 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
52 REQ_OPEN, REQ_CLOSE,
53 REQ_READ, REQ_WRITE, REQ_READAHEAD,
54 REQ_SENDFILE,
55 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
56 REQ_FSYNC, REQ_FDATASYNC,
57 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
58 REQ_READDIR,
59 REQ_LINK, REQ_SYMLINK,
60 REQ_GROUP, REQ_NOP,
61 REQ_SLEEP,
62}; 452};
63 453
64#define AIO_REQ_KLASS "IO::AIO::REQ"
65#define AIO_GRP_KLASS "IO::AIO::GRP"
66
67typedef struct aio_cb
68{
69 struct aio_cb *volatile next;
70
71 SV *data, *callback;
72 SV *fh, *fh2;
73 void *dataptr, *data2ptr;
74 Stat_t *statdata;
75 off_t offset;
76 size_t length;
77 ssize_t result;
78
79 STRLEN dataoffset;
80 int type;
81 int fd, fd2;
82 int errorno;
83 mode_t mode; /* open */
84
85 unsigned char flags;
86 unsigned char pri;
87
88 SV *self; /* the perl counterpart of this request, if any */
89 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
90} aio_cb;
91
92enum {
93 FLAG_CANCELLED = 0x01,
94};
95
96typedef aio_cb *aio_req; 454typedef eio_req *aio_req;
97typedef aio_cb *aio_req_ornot; 455typedef eio_req *aio_req_ornot;
456typedef eio_wd aio_wd;
98 457
99enum { 458static SV *on_next_submit;
100 PRI_MIN = -4, 459static int next_pri = EIO_PRI_DEFAULT;
101 PRI_MAX = 4,
102
103 DEFAULT_PRI = 0,
104 PRI_BIAS = -PRI_MIN,
105};
106
107static int next_pri = DEFAULT_PRI + PRI_BIAS;
108
109static int started, wanted;
110static volatile int nreqs;
111static int max_outstanding = 1<<30; 460static int max_outstanding;
112static int respipe [2];
113 461
114static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 462static s_epipe respipe;
115static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
116static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
117 463
118static volatile aio_req reqs, reqe; /* queue start, queue end */ 464static void req_destroy (aio_req req);
119static volatile aio_req ress, rese; /* queue start, queue end */
120
121static void req_invoke (aio_req req); 465static void req_cancel (aio_req req);
122static void req_free (aio_req req); 466
467static void
468want_poll (void)
469{
470 /* write a dummy byte to the pipe so fh becomes ready */
471 s_epipe_signal (&respipe);
472}
473
474static void
475done_poll (void)
476{
477 /* read any signals sent by the worker threads */
478 s_epipe_drain (&respipe);
479}
123 480
124/* must be called at most once */ 481/* must be called at most once */
125static SV *req_sv (aio_req req, const char *klass) 482ecb_noinline
483static SV *
484req_sv (aio_req req, HV *stash)
126{ 485{
127 if (!req->self) 486 if (!req->self)
128 { 487 {
129 req->self = (SV *)newHV (); 488 req->self = (SV *)newHV ();
130 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 489 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
131 } 490 }
132 491
133 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 492 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
134} 493}
135 494
136static aio_req SvAIO_REQ (SV *sv) 495static SV *
496newSVaio_wd (aio_wd wd)
497{
498 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
499}
500
501ecb_noinline
502static aio_req
503SvAIO_REQ (SV *sv)
137{ 504{
138 MAGIC *mg; 505 MAGIC *mg;
139 506
140 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 507 if (!SvROK (sv)
508 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
509 || (SvSTASH (SvRV (sv)) != aio_grp_stash
510 && SvSTASH (SvRV (sv)) != aio_req_stash
511 && !sv_derived_from (sv, "IO::AIO::REQ")))
141 croak ("object of class " AIO_REQ_KLASS " expected"); 512 croak ("object of class IO::AIO::REQ expected");
142 513
143 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 514 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
144 515
145 return mg ? (aio_req)mg->mg_ptr : 0; 516 return mg ? (aio_req)mg->mg_ptr : 0;
146} 517}
147 518
519static aio_wd
520SvAIO_WD (SV *sv)
521{
522 if (!SvROK (sv)
523 || SvTYPE (SvRV (sv)) != SVt_PVMG
524 || SvSTASH (SvRV (sv)) != aio_wd_stash)
525 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
526
527 return (aio_wd)(long)SvIVX (SvRV (sv));
528}
529
530static SV *
531newmortalFH (int fd, int flags)
532{
533 if (fd < 0)
534 return &PL_sv_undef;
535
536 GV *gv = (GV *)sv_newmortal ();
537 char sym[64];
538 int symlen;
539
540 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
541 gv_init (gv, aio_stash, sym, symlen, 0);
542
543 symlen = snprintf (
544 sym,
545 sizeof (sym),
546 "%s&=%d",
547 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
548 fd
549 );
550
551 return do_open (gv, sym, symlen, 0, 0, 0, 0)
552 ? (SV *)gv : &PL_sv_undef;
553}
554
555static void
148static void aio_grp_feed (aio_req grp) 556aio_grp_feed (aio_req grp)
149{ 557{
150 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 558 if (grp->sv2 && SvOK (grp->sv2))
151 { 559 {
152 int old_len = grp->length; 560 dSP;
153 561
154 if (grp->fh2 && SvOK (grp->fh2)) 562 ENTER;
563 SAVETMPS;
564 PUSHMARK (SP);
565 XPUSHs (req_sv (grp, aio_grp_stash));
566 PUTBACK;
567 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
568 SPAGAIN;
569 FREETMPS;
570 LEAVE;
571 }
572}
573
574ecb_noinline
575static void
576req_submit (eio_req *req)
577{
578 eio_submit (req);
579
580 if (expect_false (on_next_submit))
581 {
582 dSP;
583 SV *cb = sv_2mortal (on_next_submit);
584
585 on_next_submit = 0;
586
587 PUSHMARK (SP);
588 PUTBACK;
589 call_sv (cb, G_DISCARD | G_EVAL);
590 }
591}
592
593static int
594req_invoke (eio_req *req)
595{
596 if (req->flags & FLAG_SV2_RO_OFF)
597 SvREADONLY_off (req->sv2);
598
599 if (!EIO_CANCELLED (req) && req->callback)
600 {
601 dSP;
602 static SV *sv_result_cache; /* caches the result integer SV */
603 SV *sv_result;
604
605 ENTER;
606 SAVETMPS;
607 PUSHMARK (SP);
608 EXTEND (SP, 1);
609
610 /* do not recreate the result IV from scratch each time */
611 if (expect_true (sv_result_cache))
155 { 612 {
156 dSP; 613 sv_result = sv_result_cache; sv_result_cache = 0;
157 614 SvIV_set (sv_result, req->result);
158 ENTER; 615 SvIOK_only (sv_result);
159 SAVETMPS;
160 PUSHMARK (SP);
161 XPUSHs (req_sv (grp, AIO_GRP_KLASS));
162 PUTBACK;
163 call_sv (grp->fh2, G_VOID | G_EVAL);
164 SPAGAIN;
165 FREETMPS;
166 LEAVE;
167 } 616 }
168 617 else
169 /* stop if no progress has been made */
170 if (old_len == grp->length)
171 { 618 {
172 SvREFCNT_dec (grp->fh2); 619 sv_result = newSViv (req->result);
173 grp->fh2 = 0; 620 SvREADONLY_on (sv_result);
174 break;
175 } 621 }
622
623 switch (req->type)
624 {
625 case EIO_WD_OPEN:
626 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
627 break;
628
629 case EIO_READDIR:
630 {
631 SV *rv = &PL_sv_undef;
632
633 if (req->result >= 0)
634 {
635 int i;
636 char *names = (char *)req->ptr2;
637 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
638 AV *av = newAV ();
639
640 av_extend (av, req->result - 1);
641
642 for (i = 0; i < req->result; ++i)
643 {
644 if (req->int1 & EIO_READDIR_DENTS)
645 {
646 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
647
648 if (req->int1 & EIO_READDIR_CUSTOM2)
649 {
650 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
651 AV *avent = newAV ();
652
653 av_extend (avent, 2);
654
655 if (!sv_type [ent->type])
656 {
657 sv_type [ent->type] = newSViv (ent->type);
658 SvREADONLY_on (sv_type [ent->type]);
659 }
660
661 av_store (avent, 0, namesv);
662 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
663 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
664
665 av_store (av, i, newRV_noinc ((SV *)avent));
666 }
667 else
668 av_store (av, i, namesv);
669
670 ++ent;
671 }
672 else
673 {
674 SV *name = newSVpv (names, 0);
675 av_store (av, i, name);
676 names += SvCUR (name) + 1;
677 }
678 }
679
680 rv = sv_2mortal (newRV_noinc ((SV *)av));
681 }
682
683 PUSHs (rv);
684
685 if (req->int1 & EIO_READDIR_CUSTOM1)
686 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
687 }
688 break;
689
690 case EIO_OPEN:
691 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
692 break;
693
694 case EIO_STATVFS:
695 case EIO_FSTATVFS:
696 {
697 SV *rv = &PL_sv_undef;
698
699#ifndef _WIN32
700 if (req->result >= 0)
701 {
702 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
703 HV *hv = newHV ();
704 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
705 * chooses to make it a struct.
706 */
707 unsigned long fsid = 0;
708 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
709
710 rv = sv_2mortal (newRV_noinc ((SV *)hv));
711
712 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
713 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
714 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
715 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
716 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
717 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
718 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
719 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
720 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
721 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
722 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
723 }
724#endif
725
726 PUSHs (rv);
727 }
728
729 break;
730
731 case EIO_GROUP:
732 req->int1 = 2; /* mark group as finished */
733
734 if (req->sv1)
735 {
736 int i;
737 AV *av = (AV *)req->sv1;
738
739 EXTEND (SP, AvFILL (av) + 1);
740 for (i = 0; i <= AvFILL (av); ++i)
741 PUSHs (*av_fetch (av, i, 0));
742 }
743 break;
744
745 case EIO_NOP:
746 case EIO_BUSY:
747 break;
748
749 case EIO_READLINK:
750 case EIO_REALPATH:
751 if (req->result > 0)
752 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
753 break;
754
755 case EIO_STAT:
756 case EIO_LSTAT:
757 case EIO_FSTAT:
758 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
759
760 if (!(PL_laststatval = req->result))
761 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
762 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
763
764 PUSHs (sv_result);
765 break;
766
767 case EIO_SEEK:
768 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
769 break;
770
771 case EIO_READ:
772 {
773 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
774 *SvEND (req->sv2) = 0;
775 SvPOK_only (req->sv2);
776 SvSETMAGIC (req->sv2);
777 PUSHs (sv_result);
778 }
779 break;
780
781 case EIO_SLURP:
782 {
783 if (req->result >= 0)
784 {
785 /* if length was originally not known, we steal the malloc'ed memory */
786 if (req->flags & EIO_FLAG_PTR2_FREE)
787 {
788 req->flags &= ~EIO_FLAG_PTR2_FREE;
789 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
790 }
791 else
792 {
793 SvCUR_set (req->sv2, req->result);
794 *SvEND (req->sv2) = 0;
795 SvPOK_only (req->sv2);
796 }
797
798 SvSETMAGIC (req->sv2);
799 }
800
801 PUSHs (sv_result);
802 }
803 break;
804
805 case EIO_CUSTOM:
806 if (req->feed == fiemap)
807 {
808#if HAVE_FIEMAP
809 if (!req->result)
810 {
811 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
812
813 if (fiemap->fm_extent_count)
814 {
815 AV *av = newAV ();
816 int i;
817
818 while (fiemap->fm_mapped_extents)
819 {
820 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
821 AV *ext_av = newAV ();
822
823 av_store (ext_av, 3, newSVuv (extent->fe_flags));
824 av_store (ext_av, 2, newSVval64 (extent->fe_length));
825 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
826 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
827
828 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
829 }
830
831 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
832 }
833 else
834 {
835 SvIV_set (sv_result, fiemap->fm_mapped_extents);
836 PUSHs (sv_result);
837 }
838 }
839#endif
840 }
841 else
842 PUSHs (sv_result);
843 break;
844
845#if 0
846 case EIO_CLOSE:
847 PerlIOUnix_refcnt_dec (req->int1);
848 break;
849#endif
850
851 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
852 if (req->result > 0)
853 SvIV_set (sv_result, 0);
854 /* FALLTHROUGH */
855
856 default:
857 PUSHs (sv_result);
858 break;
859 }
860
861 errno = req->errorno;
862
863 PUTBACK;
864 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
865 SPAGAIN;
866
867 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
868 SvREFCNT_dec (sv_result);
869 else
870 sv_result_cache = sv_result;
871
872 FREETMPS;
873 LEAVE;
874
875 PUTBACK;
176 } 876 }
177}
178 877
179static void aio_grp_dec (aio_req grp) 878 return !!SvTRUE (ERRSV);
180{
181 --grp->length;
182
183 /* call feeder, if applicable */
184 aio_grp_feed (grp);
185
186 /* finish, if done */
187 if (!grp->length && grp->fd)
188 {
189 req_invoke (grp);
190 req_free (grp);
191 }
192} 879}
193 880
194static void poll_wait () 881static void
882req_destroy (aio_req req)
195{ 883{
196 while (nreqs)
197 {
198 aio_req req;
199 pthread_mutex_lock (&reslock);
200 req = ress;
201 pthread_mutex_unlock (&reslock);
202
203 if (req)
204 return;
205
206 fd_set rfd;
207 FD_ZERO(&rfd);
208 FD_SET(respipe [0], &rfd);
209
210 select (respipe [0] + 1, &rfd, 0, 0, 0);
211 }
212}
213
214static void req_invoke (aio_req req)
215{
216 dSP;
217 int errorno = errno;
218
219 if (req->flags & FLAG_CANCELLED || !SvOK (req->callback))
220 return;
221
222 errno = req->errorno;
223
224 ENTER;
225 SAVETMPS;
226 PUSHMARK (SP);
227 EXTEND (SP, 1);
228
229 switch (req->type)
230 {
231 case REQ_READDIR:
232 {
233 SV *rv = &PL_sv_undef;
234
235 if (req->result >= 0)
236 {
237 char *buf = req->data2ptr;
238 AV *av = newAV ();
239
240 while (req->result)
241 {
242 SV *sv = newSVpv (buf, 0);
243
244 av_push (av, sv);
245 buf += SvCUR (sv) + 1;
246 req->result--;
247 }
248
249 rv = sv_2mortal (newRV_noinc ((SV *)av));
250 }
251
252 PUSHs (rv);
253 }
254 break;
255
256 case REQ_OPEN:
257 {
258 /* convert fd to fh */
259 SV *fh;
260
261 PUSHs (sv_2mortal (newSViv (req->result)));
262 PUTBACK;
263 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
264 SPAGAIN;
265
266 fh = SvREFCNT_inc (POPs);
267
268 PUSHMARK (SP);
269 XPUSHs (sv_2mortal (fh));
270 }
271 break;
272
273 case REQ_GROUP:
274 req->fd = 2; /* mark group as finished */
275
276 if (req->data)
277 {
278 int i;
279 AV *av = (AV *)req->data;
280
281 EXTEND (SP, AvFILL (av) + 1);
282 for (i = 0; i <= AvFILL (av); ++i)
283 PUSHs (*av_fetch (av, i, 0));
284 }
285 break;
286
287 case REQ_NOP:
288 case REQ_SLEEP:
289 break;
290
291 default:
292 PUSHs (sv_2mortal (newSViv (req->result)));
293 break;
294 }
295
296
297 PUTBACK;
298 call_sv (req->callback, G_VOID | G_EVAL);
299 SPAGAIN;
300
301 FREETMPS;
302 LEAVE;
303
304 errno = errorno;
305
306 if (SvTRUE (ERRSV))
307 {
308 req_free (req);
309 croak (0);
310 }
311}
312
313static void req_free (aio_req req)
314{
315 if (req->grp)
316 {
317 aio_req grp = req->grp;
318
319 /* unlink request */
320 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
321 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
322
323 if (grp->grp_first == req)
324 grp->grp_first = req->grp_next;
325
326 aio_grp_dec (grp);
327 }
328
329 if (req->self) 884 if (req->self)
330 { 885 {
331 sv_unmagic (req->self, PERL_MAGIC_ext); 886 sv_unmagic (req->self, PERL_MAGIC_ext);
332 SvREFCNT_dec (req->self); 887 SvREFCNT_dec (req->self);
333 } 888 }
334 889
335 SvREFCNT_dec (req->data);
336 SvREFCNT_dec (req->fh); 890 SvREFCNT_dec (req->sv1);
337 SvREFCNT_dec (req->fh2); 891 SvREFCNT_dec (req->sv2);
892 SvREFCNT_dec (req->sv3);
893 SvREFCNT_dec (req->sv4);
338 SvREFCNT_dec (req->callback); 894 SvREFCNT_dec (req->callback);
339 Safefree (req->statdata);
340 895
341 if (req->type == REQ_READDIR && req->result >= 0)
342 free (req->data2ptr);
343
344 Safefree (req); 896 free (req);
345} 897}
346 898
347static void req_cancel (aio_req req) 899static void
900req_cancel_subs (aio_req grp)
348{ 901{
349 req->flags |= FLAG_CANCELLED;
350
351 if (req->type == REQ_GROUP) 902 if (grp->type != EIO_GROUP)
903 return;
904
905 SvREFCNT_dec (grp->sv2);
906 grp->sv2 = 0;
907
908 eio_grp_cancel (grp);
909}
910
911ecb_cold
912static void
913create_respipe (void)
914{
915 if (s_epipe_renew (&respipe))
916 croak ("IO::AIO: unable to initialize result pipe");
917}
918
919static void
920poll_wait (void)
921{
922 while (eio_nreqs ())
352 { 923 {
353 aio_req sub; 924 int size;
354 925
355 for (sub = req->grp_first; sub; sub = sub->grp_next) 926 X_LOCK (EIO_POOL->reslock);
356 req_cancel (sub); 927 size = EIO_POOL->res_queue.size;
928 X_UNLOCK (EIO_POOL->reslock);
929
930 if (size)
931 return;
932
933 etp_maybe_start_thread (EIO_POOL);
934
935 s_epipe_wait (&respipe);
357 } 936 }
358} 937}
359 938
360static int poll_cb () 939static int
940poll_cb (void)
361{ 941{
362 dSP;
363 int count = 0;
364 int do_croak = 0;
365 aio_req req;
366
367 for (;;) 942 for (;;)
368 { 943 {
369 pthread_mutex_lock (&reslock); 944 int res = eio_poll ();
370 req = ress;
371 945
372 if (req) 946 if (res > 0)
947 croak (0);
948
949 if (!max_outstanding || max_outstanding > eio_nreqs ())
950 return res;
951
952 poll_wait ();
953 }
954}
955
956ecb_cold
957static void
958reinit (void)
959{
960 create_respipe ();
961
962 if (eio_init (want_poll, done_poll) < 0)
963 croak ("IO::AIO: unable to initialise eio library");
964}
965
966/*****************************************************************************/
967
968static SV *
969get_cb (SV *cb_sv)
970{
971 SvGETMAGIC (cb_sv);
972 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
973}
974
975ecb_noinline
976static aio_req ecb_noinline
977dreq (SV *callback)
978{
979 SV *cb_cv;
980 aio_req req;
981 int req_pri = next_pri;
982 next_pri = EIO_PRI_DEFAULT;
983
984 cb_cv = get_cb (callback);
985
986 req = calloc (sizeof (*req), 1);
987 if (!req)
988 croak ("out of memory during eio_req allocation");
989
990 req->callback = SvREFCNT_inc (cb_cv);
991 req->pri = req_pri;
992
993 return req;
994}
995
996#define dREQ \
997 aio_req req = dreq (callback); \
998
999#define REQ_SEND \
1000 PUTBACK; \
1001 req_submit (req); \
1002 SPAGAIN; \
1003 \
1004 if (GIMME_V != G_VOID) \
1005 XPUSHs (req_sv (req, aio_req_stash));
1006
1007/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1008ecb_inline
1009void
1010req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1011{
1012 if (expect_false (SvROK (path)))
1013 {
1014 SV *rv = SvRV (path);
1015 SV *wdob;
1016
1017 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
373 { 1018 {
374 ress = req->next; 1019 path = AvARRAY (rv)[1];
1020 wdob = AvARRAY (rv)[0];
375 1021
376 if (!ress) 1022 if (SvOK (wdob))
377 { 1023 {
378 /* read any signals sent by the worker threads */ 1024 *wd = SvAIO_WD (wdob);
379 char buf [32]; 1025 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
380 while (read (respipe [0], buf, 32) == 32)
381 ;
382
383 rese = 0;
384 } 1026 }
1027 else
1028 *wd = EIO_INVALID_WD;
385 } 1029 }
386 1030 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
387 pthread_mutex_unlock (&reslock);
388
389 if (!req)
390 break;
391
392 --nreqs;
393
394 if (req->type == REQ_QUIT)
395 started--;
396 else if (req->type == REQ_GROUP && req->length)
397 { 1031 {
398 req->fd = 1; /* mark request as delayed */ 1032 *wd = (aio_wd)(long)SvIVX (rv);
399 continue; 1033 *wdsv = SvREFCNT_inc_NN (rv);
1034 *ptr = ".";
1035 return; /* path set to "." */
400 } 1036 }
401 else 1037 else
402 { 1038 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
403 if (req->type == REQ_READ)
404 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
405
406 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
407 SvREADONLY_off (req->data);
408
409 if (req->statdata)
410 {
411 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
412 PL_laststatval = req->result;
413 PL_statcache = *(req->statdata);
414 }
415
416 req_invoke (req);
417
418 count++;
419 }
420
421 req_free (req);
422 } 1039 }
423 1040
424 return count; 1041 *pathsv = newSVsv (path);
1042 *ptr = SvPVbyte_nolen (*pathsv);
425} 1043}
426 1044
427static void *aio_proc(void *arg); 1045ecb_noinline
428 1046static void
429static void start_thread (void) 1047req_set_path1 (aio_req req, SV *path)
430{ 1048{
431 sigset_t fullsigset, oldsigset; 1049 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
432 pthread_t tid;
433 pthread_attr_t attr;
434
435 pthread_attr_init (&attr);
436 pthread_attr_setstacksize (&attr, STACKSIZE);
437 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
438
439 sigfillset (&fullsigset);
440 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
441
442 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
443 started++;
444
445 sigprocmask (SIG_SETMASK, &oldsigset, 0);
446} 1050}
447 1051
448static void req_send (aio_req req) 1052ecb_noinline
1053static void
1054req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
449{ 1055{
450 while (started < wanted && nreqs >= started) 1056 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
451 start_thread ();
452 1057
453 ++nreqs; 1058 switch (SvTYPE (rv))
454
455 pthread_mutex_lock (&reqlock);
456
457 req->next = 0;
458
459 if (reqe)
460 { 1059 {
461 reqe->next = req; 1060 case SVt_PVIO:
462 reqe = req; 1061 case SVt_PVLV:
1062 case SVt_PVGV:
1063 req->type = type_fh;
1064 req->sv1 = newSVsv (fh_or_path);
1065 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1066 break;
1067
1068 default:
1069 req->type = type_path;
1070 req_set_path1 (req, fh_or_path);
1071 break;
463 } 1072 }
464 else
465 reqe = reqs = req;
466
467 pthread_cond_signal (&reqwait);
468 pthread_mutex_unlock (&reqlock);
469
470 if (nreqs > max_outstanding)
471 for (;;)
472 {
473 poll_cb ();
474
475 if (nreqs <= max_outstanding)
476 break;
477
478 poll_wait ();
479 }
480}
481
482static void end_thread (void)
483{
484 aio_req req;
485 Newz (0, req, 1, aio_cb);
486 req->type = REQ_QUIT;
487
488 req_send (req);
489}
490
491static void min_parallel (int nthreads)
492{
493 if (wanted < nthreads)
494 wanted = nthreads;
495}
496
497static void max_parallel (int nthreads)
498{
499 int cur = started;
500
501 if (wanted > nthreads)
502 wanted = nthreads;
503
504 while (cur > wanted)
505 {
506 end_thread ();
507 cur--;
508 }
509
510 while (started > wanted)
511 {
512 poll_wait ();
513 poll_cb ();
514 }
515}
516
517static void create_pipe ()
518{
519 if (pipe (respipe))
520 croak ("unable to initialize result pipe");
521
522 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
523 croak ("cannot set result pipe to nonblocking mode");
524
525 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
526 croak ("cannot set result pipe to nonblocking mode");
527} 1073}
528 1074
529/*****************************************************************************/ 1075/*****************************************************************************/
530/* work around various missing functions */
531 1076
532#if !HAVE_PREADWRITE 1077static void
533# define pread aio_pread 1078ts_set (struct timespec *ts, NV value)
534# define pwrite aio_pwrite
535
536/*
537 * make our pread/pwrite safe against themselves, but not against
538 * normal read/write by using a mutex. slows down execution a lot,
539 * but that's your problem, not mine.
540 */
541static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
542
543static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
544{ 1079{
545 ssize_t res; 1080 ts->tv_sec = value;
546 off_t ooffset; 1081 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
547
548 pthread_mutex_lock (&preadwritelock);
549 ooffset = lseek (fd, 0, SEEK_CUR);
550 lseek (fd, offset, SEEK_SET);
551 res = read (fd, buf, count);
552 lseek (fd, ooffset, SEEK_SET);
553 pthread_mutex_unlock (&preadwritelock);
554
555 return res;
556} 1082}
557 1083
558static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1084static NV
1085ts_get (const struct timespec *ts)
559{ 1086{
560 ssize_t res; 1087 return ts->tv_sec + ts->tv_nsec * 1e-9;
561 off_t ooffset;
562
563 pthread_mutex_lock (&preadwritelock);
564 ooffset = lseek (fd, 0, SEEK_CUR);
565 lseek (fd, offset, SEEK_SET);
566 res = write (fd, buf, count);
567 lseek (fd, offset, SEEK_SET);
568 pthread_mutex_unlock (&preadwritelock);
569
570 return res;
571} 1088}
572#endif
573 1089
574#if !HAVE_FDATASYNC 1090/*****************************************************************************/
575# define fdatasync fsync
576#endif
577 1091
578#if !HAVE_READAHEAD 1092XS(boot_IO__AIO) ecb_cold;
579# define readahead aio_readahead
580 1093
581static ssize_t readahead (int fd, off_t offset, size_t count) 1094MODULE = IO::AIO PACKAGE = IO::AIO
582{
583 char readahead_buf[4096];
584 1095
585 while (count > 0) 1096PROTOTYPES: ENABLE
586 {
587 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
588 1097
589 pread (fd, readahead_buf, len, offset); 1098BOOT:
590 offset += len;
591 count -= len;
592 }
593
594 errno = 0;
595}
596#endif
597
598#if !HAVE_READDIR_R
599# define readdir_r aio_readdir_r
600
601static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
602
603static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
604{ 1099{
605 struct dirent *e; 1100 static const struct {
606 int errorno; 1101 const char *name;
1102 IV iv;
1103 } *civ, const_iv[] = {
1104# define const_niv(name, value) { # name, (IV) value },
1105# define const_iv(name) { # name, (IV) name },
1106# define const_eio(name) { # name, (IV) EIO_ ## name },
607 1107
608 pthread_mutex_lock (&readdirlock); 1108 /* you have to re-run ./gendef0 after adding/removing any constants here */
1109 /* the first block can be undef if missing */
1110 const_iv (ENOSYS)
1111 const_iv (EXDEV)
1112 const_iv (EBADR)
609 1113
610 e = readdir (dirp); 1114 /* for lseek */
611 errorno = errno; 1115 const_iv (SEEK_DATA)
1116 const_iv (SEEK_HOLE)
612 1117
613 if (e) 1118 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
614 { 1119 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
615 *res = ent; 1120 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
616 strcpy (ent->d_name, e->d_name); 1121 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
617 } 1122 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
618 else 1123 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
619 *res = 0;
620 1124
621 pthread_mutex_unlock (&readdirlock); 1125 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1126 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1127 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1128 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1129 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
622 1130
623 errno = errorno; 1131 /* the second block will be 0 when missing */
624 return e ? 0 : -1; 1132 const_iv (O_ACCMODE)
625}
626#endif
627 1133
628/* sendfile always needs emulation */ 1134 const_iv (O_RDONLY)
629static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) 1135 const_iv (O_WRONLY)
630{ 1136 const_iv (O_RDWR)
631 ssize_t res; 1137 const_iv (O_CREAT)
1138 const_iv (O_TRUNC)
1139 const_iv (O_EXCL)
1140 const_iv (O_APPEND)
632 1141
633 if (!count) 1142 const_iv (O_ASYNC)
634 return 0; 1143 const_iv (O_DIRECT)
1144 const_iv (O_NOATIME)
635 1145
636#if HAVE_SENDFILE 1146 const_iv (O_CLOEXEC)
637# if __linux 1147 const_iv (O_NOCTTY)
638 res = sendfile (ofd, ifd, &offset, count); 1148 const_iv (O_NOFOLLOW)
1149 const_iv (O_NONBLOCK)
1150 const_iv (O_EXEC)
1151 const_iv (O_SEARCH)
1152 const_iv (O_DIRECTORY)
1153 const_iv (O_DSYNC)
1154 const_iv (O_RSYNC)
1155 const_iv (O_SYNC)
1156 const_iv (O_PATH)
1157 const_iv (O_TMPFILE)
1158 const_iv (O_TTY_INIT)
639 1159
640# elif __freebsd 1160 const_iv (S_IFIFO)
641 /* 1161 const_iv (S_IFCHR)
642 * Of course, the freebsd sendfile is a dire hack with no thoughts 1162 const_iv (S_IFBLK)
643 * wasted on making it similar to other I/O functions. 1163 const_iv (S_IFLNK)
644 */ 1164 const_iv (S_IFREG)
1165 const_iv (S_IFDIR)
1166 const_iv (S_IFWHT)
1167 const_iv (S_IFSOCK)
1168 const_iv (S_IFMT)
1169
1170 const_iv (ST_RDONLY)
1171 const_iv (ST_NOSUID)
1172 const_iv (ST_NODEV)
1173 const_iv (ST_NOEXEC)
1174 const_iv (ST_SYNCHRONOUS)
1175 const_iv (ST_MANDLOCK)
1176 const_iv (ST_WRITE)
1177 const_iv (ST_APPEND)
1178 const_iv (ST_IMMUTABLE)
1179 const_iv (ST_NOATIME)
1180 const_iv (ST_NODIRATIME)
1181 const_iv (ST_RELATIME)
1182
1183 const_iv (PROT_NONE)
1184 const_iv (PROT_EXEC)
1185 const_iv (PROT_READ)
1186 const_iv (PROT_WRITE)
1187
1188 const_iv (MAP_PRIVATE)
1189 const_iv (MAP_SHARED)
1190 const_iv (MAP_FIXED)
1191 const_iv (MAP_ANONYMOUS)
1192
1193 /* linuxish */
1194 const_iv (MAP_LOCKED)
1195 const_iv (MAP_NORESERVE)
1196 const_iv (MAP_POPULATE)
1197 const_iv (MAP_NONBLOCK)
1198 const_iv (MAP_GROWSDOWN)
1199 const_iv (MAP_32BIT)
1200 const_iv (MAP_HUGETLB)
1201 const_iv (MAP_STACK)
1202
1203 const_iv (MREMAP_MAYMOVE)
1204 const_iv (MREMAP_FIXED)
1205
1206 const_iv (MSG_CMSG_CLOEXEC)
1207 const_iv (SOCK_CLOEXEC)
1208
1209 const_iv (F_DUPFD_CLOEXEC)
1210
1211 const_iv (F_ADD_SEALS)
1212 const_iv (F_GET_SEALS)
1213 const_iv (F_SEAL_SEAL)
1214 const_iv (F_SEAL_SHRINK)
1215 const_iv (F_SEAL_GROW)
1216 const_iv (F_SEAL_WRITE)
1217
1218 const_iv (F_OFD_GETLK)
1219 const_iv (F_OFD_SETLK)
1220 const_iv (F_OFD_GETLKW)
1221
1222 const_iv (FIFREEZE)
1223 const_iv (FITHAW)
1224 const_iv (FITRIM)
1225 const_iv (FICLONE)
1226 const_iv (FICLONERANGE)
1227 const_iv (FIDEDUPERANGE)
1228
1229 const_iv (FS_IOC_GETFLAGS)
1230 const_iv (FS_IOC_SETFLAGS)
1231 const_iv (FS_IOC_GETVERSION)
1232 const_iv (FS_IOC_SETVERSION)
1233 const_iv (FS_IOC_FIEMAP)
1234 const_iv (FS_IOC_FSGETXATTR)
1235 const_iv (FS_IOC_FSSETXATTR)
1236 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1237 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1238 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1239
1240 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1241
1242 const_iv (FS_SECRM_FL)
1243 const_iv (FS_UNRM_FL)
1244 const_iv (FS_COMPR_FL)
1245 const_iv (FS_SYNC_FL)
1246 const_iv (FS_IMMUTABLE_FL)
1247 const_iv (FS_APPEND_FL)
1248 const_iv (FS_NODUMP_FL)
1249 const_iv (FS_NOATIME_FL)
1250 const_iv (FS_DIRTY_FL)
1251 const_iv (FS_COMPRBLK_FL)
1252 const_iv (FS_NOCOMP_FL)
1253 const_iv (FS_ENCRYPT_FL)
1254 const_iv (FS_BTREE_FL)
1255 const_iv (FS_INDEX_FL)
1256 const_iv (FS_JOURNAL_DATA_FL)
1257 const_iv (FS_NOTAIL_FL)
1258 const_iv (FS_DIRSYNC_FL)
1259 const_iv (FS_TOPDIR_FL)
1260 const_iv (FS_FL_USER_MODIFIABLE)
1261
1262 const_iv (FS_XFLAG_REALTIME)
1263 const_iv (FS_XFLAG_PREALLOC)
1264 const_iv (FS_XFLAG_IMMUTABLE)
1265 const_iv (FS_XFLAG_APPEND)
1266 const_iv (FS_XFLAG_SYNC)
1267 const_iv (FS_XFLAG_NOATIME)
1268 const_iv (FS_XFLAG_NODUMP)
1269 const_iv (FS_XFLAG_RTINHERIT)
1270 const_iv (FS_XFLAG_PROJINHERIT)
1271 const_iv (FS_XFLAG_NOSYMLINKS)
1272 const_iv (FS_XFLAG_EXTSIZE)
1273 const_iv (FS_XFLAG_EXTSZINHERIT)
1274 const_iv (FS_XFLAG_NODEFRAG)
1275 const_iv (FS_XFLAG_FILESTREAM)
1276 const_iv (FS_XFLAG_DAX)
1277 const_iv (FS_XFLAG_HASATTR)
1278
1279 const_iv (FIEMAP_FLAG_SYNC)
1280 const_iv (FIEMAP_FLAG_XATTR)
1281 const_iv (FIEMAP_FLAGS_COMPAT)
1282 const_iv (FIEMAP_EXTENT_LAST)
1283 const_iv (FIEMAP_EXTENT_UNKNOWN)
1284 const_iv (FIEMAP_EXTENT_DELALLOC)
1285 const_iv (FIEMAP_EXTENT_ENCODED)
1286 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1287 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1288 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1289 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1290 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1291 const_iv (FIEMAP_EXTENT_MERGED)
1292 const_iv (FIEMAP_EXTENT_SHARED)
1293
1294 const_iv (SPLICE_F_MOVE)
1295 const_iv (SPLICE_F_NONBLOCK)
1296 const_iv (SPLICE_F_MORE)
1297 const_iv (SPLICE_F_GIFT)
1298
1299 const_iv (EFD_CLOEXEC)
1300 const_iv (EFD_NONBLOCK)
1301 const_iv (EFD_SEMAPHORE)
1302
1303 const_iv (MFD_CLOEXEC)
1304 const_iv (MFD_ALLOW_SEALING)
1305 const_iv (MFD_HUGETLB)
1306
1307 const_iv (CLOCK_REALTIME)
1308 const_iv (CLOCK_MONOTONIC)
1309 const_iv (CLOCK_BOOTTIME)
1310 const_iv (CLOCK_REALTIME_ALARM)
1311 const_iv (CLOCK_BOOTTIME_ALARM)
1312
1313 const_iv (TFD_NONBLOCK)
1314 const_iv (TFD_CLOEXEC)
1315
1316 const_iv (TFD_TIMER_ABSTIME)
1317 const_iv (TFD_TIMER_CANCEL_ON_SET)
1318
1319 const_iv (STATX_TYPE)
1320 const_iv (STATX_MODE)
1321 const_iv (STATX_NLINK)
1322 const_iv (STATX_UID)
1323 const_iv (STATX_GID)
1324 const_iv (STATX_ATIME)
1325 const_iv (STATX_MTIME)
1326 const_iv (STATX_CTIME)
1327 const_iv (STATX_INO)
1328 const_iv (STATX_SIZE)
1329 const_iv (STATX_BLOCKS)
1330 const_iv (STATX_BASIC_STATS)
1331 const_iv (STATX_ALL)
1332 const_iv (STATX_BTIME)
1333 const_iv (STATX_ATTR_COMPRESSED)
1334 const_iv (STATX_ATTR_IMMUTABLE)
1335 const_iv (STATX_ATTR_APPEND)
1336 const_iv (STATX_ATTR_NODUMP)
1337 const_iv (STATX_ATTR_ENCRYPTED)
1338 const_iv (STATX_ATTR_AUTOMOUNT)
1339
1340 const_iv (AT_FDCWD)
1341 const_iv (AT_SYMLINK_NOFOLLOW)
1342 const_iv (AT_EACCESS)
1343 const_iv (AT_REMOVEDIR)
1344 const_iv (AT_SYMLINK_FOLLOW)
1345 const_iv (AT_NO_AUTOMOUNT)
1346 const_iv (AT_EMPTY_PATH)
1347 const_iv (AT_STATX_SYNC_TYPE)
1348 const_iv (AT_STATX_AS_STAT)
1349 const_iv (AT_STATX_FORCE_SYNC)
1350 const_iv (AT_STATX_DONT_SYNC)
1351 const_iv (AT_RECURSIVE)
1352
1353 const_iv (OPEN_TREE_CLONE)
1354
1355 const_iv (FSOPEN_CLOEXEC)
1356
1357 const_iv (FSPICK_CLOEXEC)
1358 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1359 const_iv (FSPICK_NO_AUTOMOUNT)
1360 const_iv (FSPICK_EMPTY_PATH)
1361
1362 const_iv (MOVE_MOUNT_F_SYMLINKS)
1363 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1364 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1365 const_iv (MOVE_MOUNT_T_SYMLINKS)
1366 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1367 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1368
1369 /* these are libeio constants, and are independent of gendef0 */
1370 const_eio (SEEK_SET)
1371 const_eio (SEEK_CUR)
1372 const_eio (SEEK_END)
1373
1374 const_eio (MCL_FUTURE)
1375 const_eio (MCL_CURRENT)
1376 const_eio (MCL_ONFAULT)
1377
1378 const_eio (MS_ASYNC)
1379 const_eio (MS_INVALIDATE)
1380 const_eio (MS_SYNC)
1381
1382 const_eio (MT_MODIFY)
1383
1384 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1385 const_eio (SYNC_FILE_RANGE_WRITE)
1386 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1387
1388 const_eio (FALLOC_FL_KEEP_SIZE)
1389 const_eio (FALLOC_FL_PUNCH_HOLE)
1390 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1391 const_eio (FALLOC_FL_ZERO_RANGE)
1392 const_eio (FALLOC_FL_INSERT_RANGE)
1393 const_eio (FALLOC_FL_UNSHARE_RANGE)
1394
1395 const_eio (RENAME_NOREPLACE)
1396 const_eio (RENAME_EXCHANGE)
1397 const_eio (RENAME_WHITEOUT)
1398
1399 const_eio (READDIR_DENTS)
1400 const_eio (READDIR_DIRS_FIRST)
1401 const_eio (READDIR_STAT_ORDER)
1402 const_eio (READDIR_FOUND_UNKNOWN)
1403
1404 const_eio (DT_UNKNOWN)
1405 const_eio (DT_FIFO)
1406 const_eio (DT_CHR)
1407 const_eio (DT_DIR)
1408 const_eio (DT_BLK)
1409 const_eio (DT_REG)
1410 const_eio (DT_LNK)
1411 const_eio (DT_SOCK)
1412 const_eio (DT_WHT)
1413 };
1414
1415 aio_stash = gv_stashpv ("IO::AIO" , 1);
1416 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1417 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1418 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1419
1420 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1421 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1422
1423 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1424
1425 /* allocate dummy pipe fd for aio_close */
645 { 1426 {
646 off_t sbytes; 1427 int pipefd [2];
647 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
648 1428
649 if (res < 0 && sbytes) 1429 if (
650 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ 1430#ifdef _WIN32
651 res = sbytes; 1431 _pipe (pipefd, 1, _O_BINARY) < 0
1432#else
1433 pipe (pipefd) < 0
1434 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1435#endif
1436 || close (pipefd [1]) < 0
1437 )
1438 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1439
1440 close_fd = pipefd [0];
652 } 1441 }
653 1442
654# elif __hpux 1443 reinit ();
655 res = sendfile (ofd, ifd, offset, count, 0, 0); 1444}
656 1445
657# elif __solaris 1446void
1447reinit ()
1448 PROTOTYPE:
1449
1450void
1451max_poll_reqs (unsigned int nreqs)
1452 PROTOTYPE: $
1453 CODE:
1454 eio_set_max_poll_reqs (nreqs);
1455
1456void
1457max_poll_time (double nseconds)
1458 PROTOTYPE: $
1459 CODE:
1460 eio_set_max_poll_time (nseconds);
1461
1462void
1463min_parallel (unsigned int nthreads)
1464 PROTOTYPE: $
1465 CODE:
1466 eio_set_min_parallel (nthreads);
1467
1468void
1469max_parallel (unsigned int nthreads)
1470 PROTOTYPE: $
1471 CODE:
1472 eio_set_max_parallel (nthreads);
1473
1474void
1475max_idle (unsigned int nthreads)
1476 PROTOTYPE: $
1477 CODE:
1478 eio_set_max_idle (nthreads);
1479
1480void
1481idle_timeout (unsigned int seconds)
1482 PROTOTYPE: $
1483 CODE:
1484 eio_set_idle_timeout (seconds);
1485
1486void
1487max_outstanding (unsigned int maxreqs)
1488 PROTOTYPE: $
1489 CODE:
1490 max_outstanding = maxreqs;
1491
1492void
1493aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1494 PPCODE:
1495{
1496 dREQ;
1497
1498 req->type = EIO_WD_OPEN;
1499 req_set_path1 (req, pathname);
1500
1501 REQ_SEND;
1502}
1503
1504void
1505aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1506 PPCODE:
1507{
1508 dREQ;
1509
1510 req->type = EIO_OPEN;
1511 req_set_path1 (req, pathname);
1512 req->int1 = flags;
1513 req->int2 = mode;
1514
1515 REQ_SEND;
1516}
1517
1518void
1519aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1520 ALIAS:
1521 aio_fsync = EIO_FSYNC
1522 aio_fdatasync = EIO_FDATASYNC
1523 aio_syncfs = EIO_SYNCFS
1524 PPCODE:
1525{
1526 int fd = s_fileno_croak (fh, 0);
1527 dREQ;
1528
1529 req->type = ix;
1530 req->sv1 = newSVsv (fh);
1531 req->int1 = fd;
1532
1533 REQ_SEND;
1534}
1535
1536void
1537aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1538 PPCODE:
1539{
1540 int fd = s_fileno_croak (fh, 0);
1541 dREQ;
1542
1543 req->type = EIO_SYNC_FILE_RANGE;
1544 req->sv1 = newSVsv (fh);
1545 req->int1 = fd;
1546 req->offs = offset;
1547 req->size = nbytes;
1548 req->int2 = flags;
1549
1550 REQ_SEND;
1551}
1552
1553void
1554aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1555 PPCODE:
1556{
1557 int fd = s_fileno_croak (fh, 0);
1558 dREQ;
1559
1560 req->type = EIO_FALLOCATE;
1561 req->sv1 = newSVsv (fh);
1562 req->int1 = fd;
1563 req->int2 = mode;
1564 req->offs = offset;
1565 req->size = len;
1566
1567 REQ_SEND;
1568}
1569
1570void
1571aio_close (SV *fh, SV *callback = &PL_sv_undef)
1572 PPCODE:
1573{
1574 int fd = s_fileno_croak (fh, 0);
1575 dREQ;
1576#if 0
1577 /* partially duplicate logic in s_fileno */
1578 SvGETMAGIC (fh);
1579
1580 if (SvROK (fh))
658 { 1581 {
659 struct sendfilevec vec; 1582 fh = SvRV (fh);
660 size_t sbytes; 1583 SvGETMAGIC (fh);
661
662 vec.sfv_fd = ifd;
663 vec.sfv_flag = 0;
664 vec.sfv_off = offset;
665 vec.sfv_len = count;
666
667 res = sendfilev (ofd, &vec, 1, &sbytes);
668
669 if (res < 0 && sbytes)
670 res = sbytes;
671 } 1584 }
672 1585
673# endif 1586 if (SvTYPE (fh) == SVt_PVGV)
674#else
675 res = -1;
676 errno = ENOSYS;
677#endif
678
679 if (res < 0
680 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
681#if __solaris
682 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
683#endif
684 )
685 )
686 {
687 /* emulate sendfile. this is a major pain in the ass */
688 char buf[4096];
689 res = 0;
690
691 while (count)
692 {
693 ssize_t cnt;
694
695 cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
696
697 if (cnt <= 0)
698 {
699 if (cnt && !res) res = -1;
700 break;
701 }
702
703 cnt = write (ofd, buf, cnt);
704
705 if (cnt <= 0)
706 {
707 if (cnt && !res) res = -1;
708 break;
709 }
710
711 offset += cnt;
712 res += cnt;
713 count -= cnt;
714 }
715 }
716
717 return res;
718}
719
720/* read a full directory */
721static int scandir_ (const char *path, void **namesp)
722{
723 DIR *dirp = opendir (path);
724 union
725 {
726 struct dirent d;
727 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
728 } u;
729 struct dirent *entp;
730 char *name, *names;
731 int memlen = 4096;
732 int memofs = 0;
733 int res = 0;
734 int errorno;
735
736 if (!dirp)
737 return -1;
738
739 names = malloc (memlen);
740
741 for (;;)
742 {
743 errno = 0, readdir_r (dirp, &u.d, &entp);
744
745 if (!entp)
746 break;
747
748 name = entp->d_name;
749
750 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
751 {
752 int len = strlen (name) + 1;
753
754 res++;
755
756 while (memofs + len > memlen)
757 {
758 memlen *= 2;
759 names = realloc (names, memlen);
760 if (!names)
761 break;
762 }
763
764 memcpy (names + memofs, name, len);
765 memofs += len;
766 }
767 }
768
769 errorno = errno;
770 closedir (dirp);
771
772 if (errorno)
773 {
774 free (names);
775 errno = errorno;
776 res = -1;
777 }
778
779 *namesp = (void *)names;
780 return res;
781}
782
783/*****************************************************************************/
784
785static void *aio_proc (void *thr_arg)
786{
787 aio_req req;
788 int type;
789
790 do
791 {
792 pthread_mutex_lock (&reqlock);
793
794 for (;;)
795 {
796 req = reqs;
797
798 if (reqs)
799 {
800 reqs = reqs->next;
801 if (!reqs) reqe = 0;
802 }
803
804 if (req)
805 break;
806
807 pthread_cond_wait (&reqwait, &reqlock);
808 }
809
810 pthread_mutex_unlock (&reqlock);
811
812 errno = 0; /* strictly unnecessary */
813 type = req->type; /* remember type for QUIT check */
814
815 if (!(req->flags & FLAG_CANCELLED))
816 switch (type)
817 { 1587 {
818 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 1588 /* perl filehandle */
819 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 1589 PerlIOUnix_refcnt_inc (fd);
1590 do_close ((GV *)fh, 1);
820 1591
821 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 1592 req->type = EIO_CLOSE;
822 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; 1593 req->int1 = fd;
823 1594 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
824 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
825 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
826 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
827
828 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
829 case REQ_CLOSE: req->result = close (req->fd); break;
830 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
831 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
832 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
833 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
834 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
835
836 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
837 case REQ_FSYNC: req->result = fsync (req->fd); break;
838 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
839
840 case REQ_SLEEP:
841 {
842 struct timeval tv;
843
844 tv.tv_sec = req->fd;
845 tv.tv_usec = req->fd2;
846
847 req->result = select (0, 0, 0, 0, &tv);
848 }
849
850 case REQ_GROUP:
851 case REQ_NOP:
852 case REQ_QUIT:
853 break;
854
855 default:
856 req->result = ENOSYS;
857 break;
858 } 1595 }
859
860 req->errorno = errno;
861
862 pthread_mutex_lock (&reslock);
863
864 req->next = 0;
865
866 if (rese)
867 {
868 rese->next = req;
869 rese = req;
870 }
871 else 1596 else
1597#endif
872 { 1598 {
873 rese = ress = req; 1599 /* fd number */
874 1600 req->type = EIO_DUP2;
875 /* write a dummy byte to the pipe so fh becomes ready */ 1601 req->int1 = close_fd;
876 write (respipe [1], &respipe, 1); 1602 req->sv2 = newSVsv (fh);
1603 req->int2 = fd;
877 } 1604 }
878 1605
879 pthread_mutex_unlock (&reslock); 1606 REQ_SEND;
880 }
881 while (type != REQ_QUIT);
882
883 return 0;
884} 1607}
885 1608
886/*****************************************************************************/
887
888static void atfork_prepare (void)
889{
890 pthread_mutex_lock (&reqlock);
891 pthread_mutex_lock (&reslock);
892#if !HAVE_PREADWRITE
893 pthread_mutex_lock (&preadwritelock);
894#endif
895#if !HAVE_READDIR_R
896 pthread_mutex_lock (&readdirlock);
897#endif
898}
899
900static void atfork_parent (void)
901{
902#if !HAVE_READDIR_R
903 pthread_mutex_unlock (&readdirlock);
904#endif
905#if !HAVE_PREADWRITE
906 pthread_mutex_unlock (&preadwritelock);
907#endif
908 pthread_mutex_unlock (&reslock);
909 pthread_mutex_unlock (&reqlock);
910}
911
912static void atfork_child (void)
913{
914 aio_req prv;
915
916 started = 0;
917
918 while (reqs)
919 {
920 prv = reqs;
921 reqs = prv->next;
922 req_free (prv);
923 }
924
925 reqs = reqe = 0;
926
927 while (ress)
928 {
929 prv = ress;
930 ress = prv->next;
931 req_free (prv);
932 }
933
934 ress = rese = 0;
935
936 close (respipe [0]);
937 close (respipe [1]);
938 create_pipe ();
939
940 atfork_parent ();
941}
942
943#define dREQ \
944 aio_req req; \
945 int req_pri = next_pri; \
946 next_pri = DEFAULT_PRI + PRI_BIAS; \
947 \
948 if (SvOK (callback) && !SvROK (callback)) \
949 croak ("callback must be undef or of reference type"); \
950 \
951 Newz (0, req, 1, aio_cb); \
952 if (!req) \
953 croak ("out of memory during aio_req allocation"); \
954 \
955 req->callback = newSVsv (callback); \
956 req->pri = req_pri
957
958#define REQ_SEND \
959 req_send (req); \
960 \
961 if (GIMME_V != G_VOID) \
962 XPUSHs (req_sv (req, AIO_REQ_KLASS));
963
964MODULE = IO::AIO PACKAGE = IO::AIO
965
966PROTOTYPES: ENABLE
967
968BOOT:
969{
970 HV *stash = gv_stashpv ("IO::AIO", 1);
971 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
972 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
973 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
974
975 create_pipe ();
976 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
977}
978
979void 1609void
980min_parallel (nthreads) 1610aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
981 int nthreads
982 PROTOTYPE: $
983
984void
985max_parallel (nthreads)
986 int nthreads
987 PROTOTYPE: $
988
989int
990max_outstanding (nreqs)
991 int nreqs
992 PROTOTYPE: $
993 CODE: 1611 PPCODE:
994 RETVAL = max_outstanding;
995 max_outstanding = nreqs;
996
997void
998aio_open (pathname,flags,mode,callback=&PL_sv_undef)
999 SV * pathname
1000 int flags
1001 int mode
1002 SV * callback
1003 PROTOTYPE: $$$;$
1004 PPCODE:
1005{ 1612{
1613 int fd = s_fileno_croak (fh, 0);
1006 dREQ; 1614 dREQ;
1007 1615
1008 req->type = REQ_OPEN; 1616 req->type = EIO_SEEK;
1009 req->data = newSVsv (pathname); 1617 req->sv1 = newSVsv (fh);
1010 req->dataptr = SvPVbyte_nolen (req->data); 1618 req->int1 = fd;
1011 req->fd = flags; 1619 req->offs = SvVAL64 (offset);
1012 req->mode = mode; 1620 req->int2 = whence;
1013 1621
1014 REQ_SEND; 1622 REQ_SEND;
1015} 1623}
1016 1624
1017void 1625void
1018aio_close (fh,callback=&PL_sv_undef) 1626aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1019 SV * fh
1020 SV * callback
1021 PROTOTYPE: $;$
1022 ALIAS: 1627 ALIAS:
1023 aio_close = REQ_CLOSE
1024 aio_fsync = REQ_FSYNC
1025 aio_fdatasync = REQ_FDATASYNC
1026 PPCODE:
1027{
1028 dREQ;
1029
1030 req->type = ix;
1031 req->fh = newSVsv (fh);
1032 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1033
1034 REQ_SEND (req);
1035}
1036
1037void
1038aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1039 SV * fh
1040 UV offset
1041 UV length
1042 SV * data
1043 UV dataoffset
1044 SV * callback
1045 ALIAS:
1046 aio_read = REQ_READ 1628 aio_read = EIO_READ
1047 aio_write = REQ_WRITE 1629 aio_write = EIO_WRITE
1048 PROTOTYPE: $$$$$;$
1049 PPCODE: 1630 PPCODE:
1050{ 1631{
1051 aio_req req;
1052 STRLEN svlen; 1632 STRLEN svlen;
1633 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1053 char *svptr = SvPVbyte (data, svlen); 1634 char *svptr = SvPVbyte (data, svlen);
1054 1635 UV len = SvUV (length);
1055 SvUPGRADE (data, SVt_PV);
1056 SvPOK_on (data);
1057 1636
1058 if (dataoffset < 0) 1637 if (dataoffset < 0)
1059 dataoffset += svlen; 1638 dataoffset += svlen;
1060 1639
1061 if (dataoffset < 0 || dataoffset > svlen) 1640 if (dataoffset < 0 || dataoffset > svlen)
1062 croak ("data offset outside of string"); 1641 croak ("dataoffset outside of data scalar");
1063 1642
1064 if (ix == REQ_WRITE) 1643 if (ix == EIO_WRITE)
1065 { 1644 {
1066 /* write: check length and adjust. */ 1645 /* write: check length and adjust. */
1067 if (length < 0 || length + dataoffset > svlen) 1646 if (!SvOK (length) || len + dataoffset > svlen)
1068 length = svlen - dataoffset; 1647 len = svlen - dataoffset;
1069 } 1648 }
1070 else 1649 else
1071 { 1650 {
1072 /* read: grow scalar as necessary */ 1651 /* read: check type and grow scalar as necessary */
1652 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1073 svptr = SvGROW (data, length + dataoffset); 1653 svptr = sv_grow (data, len + dataoffset + 1);
1654 else if (SvCUR (data) < len + dataoffset)
1655 croak ("length + dataoffset outside of scalar, and cannot grow");
1074 } 1656 }
1075
1076 if (length < 0)
1077 croak ("length must not be negative");
1078 1657
1079 { 1658 {
1080 dREQ; 1659 dREQ;
1081 1660
1082 req->type = ix; 1661 req->type = ix;
1083 req->fh = newSVsv (fh); 1662 req->sv1 = newSVsv (fh);
1084 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1663 req->int1 = fd;
1085 : IoOFP (sv_2io (fh))); 1664 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1086 req->offset = offset; 1665 req->size = len;
1087 req->length = length;
1088 req->data = SvREFCNT_inc (data); 1666 req->sv2 = SvREFCNT_inc (data);
1089 req->dataptr = (char *)svptr + dataoffset; 1667 req->ptr2 = (char *)svptr + dataoffset;
1668 req->stroffset = dataoffset;
1090 1669
1091 if (!SvREADONLY (data)) 1670 if (!SvREADONLY (data))
1092 { 1671 {
1093 SvREADONLY_on (data); 1672 SvREADONLY_on (data);
1094 req->data2ptr = (void *)data; 1673 req->flags |= FLAG_SV2_RO_OFF;
1095 } 1674 }
1096 1675
1097 REQ_SEND; 1676 REQ_SEND;
1098 } 1677 }
1099} 1678}
1100 1679
1101void 1680void
1102aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1681aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1103 SV * out_fh 1682 ALIAS:
1104 SV * in_fh 1683 aio_ioctl = EIO_IOCTL
1105 UV in_offset 1684 aio_fcntl = EIO_FCNTL
1106 UV length
1107 SV * callback
1108 PROTOTYPE: $$$$;$
1109 PPCODE: 1685 PPCODE:
1110{ 1686{
1111 dREQ; 1687 int fd = s_fileno_croak (fh, 0);
1688 char *svptr;
1112 1689
1113 req->type = REQ_SENDFILE; 1690 if (SvPOK (arg) || !SvNIOK (arg))
1114 req->fh = newSVsv (out_fh);
1115 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1116 req->fh2 = newSVsv (in_fh);
1117 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1118 req->offset = in_offset;
1119 req->length = length;
1120
1121 REQ_SEND;
1122}
1123
1124void
1125aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1126 SV * fh
1127 UV offset
1128 IV length
1129 SV * callback
1130 PROTOTYPE: $$$;$
1131 PPCODE:
1132{
1133 dREQ;
1134
1135 req->type = REQ_READAHEAD;
1136 req->fh = newSVsv (fh);
1137 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1138 req->offset = offset;
1139 req->length = length;
1140
1141 REQ_SEND;
1142}
1143
1144void
1145aio_stat (fh_or_path,callback=&PL_sv_undef)
1146 SV * fh_or_path
1147 SV * callback
1148 ALIAS:
1149 aio_stat = REQ_STAT
1150 aio_lstat = REQ_LSTAT
1151 PPCODE:
1152{
1153 dREQ;
1154
1155 New (0, req->statdata, 1, Stat_t);
1156 if (!req->statdata)
1157 { 1691 {
1158 req_free (req); 1692 STRLEN svlen;
1159 croak ("out of memory during aio_req->statdata allocation"); 1693 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1160 } 1694#ifdef IOCPARM_LEN
1695 STRLEN need = IOCPARM_LEN (request);
1696#else
1697 STRLEN need = 256;
1698#endif
1161 1699
1162 if (SvPOK (fh_or_path)) 1700 if (svlen < need)
1163 { 1701 svptr = SvGROW (arg, need);
1164 req->type = ix;
1165 req->data = newSVsv (fh_or_path);
1166 req->dataptr = SvPVbyte_nolen (req->data);
1167 } 1702 }
1168 else 1703 else
1704 svptr = (char *)SvIV (arg);
1705
1169 { 1706 {
1707 dREQ;
1708
1170 req->type = REQ_FSTAT; 1709 req->type = ix;
1171 req->fh = newSVsv (fh_or_path); 1710 req->sv1 = newSVsv (fh);
1172 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1711 req->int1 = fd;
1712 req->int2 = (long)request;
1713 req->sv2 = SvREFCNT_inc (arg);
1714 req->ptr2 = svptr;
1715
1716 REQ_SEND;
1173 } 1717 }
1718}
1719
1720void
1721aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1722 ALIAS:
1723 aio_readlink = EIO_READLINK
1724 aio_realpath = EIO_REALPATH
1725 PPCODE:
1726{
1727 dREQ;
1728
1729 req->type = ix;
1730 req_set_path1 (req, pathname);
1174 1731
1175 REQ_SEND; 1732 REQ_SEND;
1176} 1733}
1177 1734
1178void 1735void
1179aio_unlink (pathname,callback=&PL_sv_undef) 1736aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1180 SV * pathname 1737 PPCODE:
1181 SV * callback 1738{
1739 int ifd = s_fileno_croak (in_fh , 0);
1740 int ofd = s_fileno_croak (out_fh, 1);
1741 dREQ;
1742
1743 req->type = EIO_SENDFILE;
1744 req->sv1 = newSVsv (out_fh);
1745 req->int1 = ofd;
1746 req->sv2 = newSVsv (in_fh);
1747 req->int2 = ifd;
1748 req->offs = in_offset;
1749 req->size = length;
1750
1751 REQ_SEND;
1752}
1753
1754void
1755aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1756 PPCODE:
1757{
1758 int fd = s_fileno_croak (fh, 0);
1759 dREQ;
1760
1761 req->type = EIO_READAHEAD;
1762 req->sv1 = newSVsv (fh);
1763 req->int1 = fd;
1764 req->offs = offset;
1765 req->size = length;
1766
1767 REQ_SEND;
1768}
1769
1770void
1771aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1182 ALIAS: 1772 ALIAS:
1773 aio_stat = EIO_STAT
1774 aio_lstat = EIO_LSTAT
1775 aio_statvfs = EIO_STATVFS
1776 PPCODE:
1777{
1778 dREQ;
1779
1780 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1781
1782 REQ_SEND;
1783}
1784
1785void
1786st_xtime ()
1787 ALIAS:
1788 st_atime = 0x01
1789 st_mtime = 0x02
1790 st_ctime = 0x04
1791 st_btime = 0x08
1792 st_xtime = 0x0f
1793 PPCODE:
1794 EXTEND (SP, 4);
1795 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1796 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1797 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1798 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1799
1800void
1801st_xtimensec ()
1802 ALIAS:
1803 st_atimensec = 0x01
1804 st_mtimensec = 0x02
1805 st_ctimensec = 0x04
1806 st_btimensec = 0x08
1807 st_xtimensec = 0x0f
1808 st_btimesec = 0x10
1809 st_gen = 0x20
1810 PPCODE:
1811 EXTEND (SP, 4);
1812 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1813 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1814 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1815 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1816 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1817 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1818
1819UV
1820major (UV dev)
1821 ALIAS:
1822 minor = 1
1823 CODE:
1824 RETVAL = ix ? minor (dev) : major (dev);
1825 OUTPUT:
1826 RETVAL
1827
1828UV
1829makedev (UV maj, UV min)
1830 CODE:
1831 RETVAL = makedev (maj, min);
1832 OUTPUT:
1833 RETVAL
1834
1835void
1836aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1837 PPCODE:
1838{
1839 dREQ;
1840
1841 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1842 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1843 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1844
1845 REQ_SEND;
1846}
1847
1848void
1849aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1850 PPCODE:
1851{
1852 dREQ;
1853
1854 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1855 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1856
1857 REQ_SEND;
1858}
1859
1860void
1861aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1862 PPCODE:
1863{
1864 dREQ;
1865
1866 req->int2 = mode;
1867 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1868
1869 REQ_SEND;
1870}
1871
1872void
1873aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1874 PPCODE:
1875{
1876 dREQ;
1877
1878 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1879 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1880 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1881
1882 REQ_SEND;
1883}
1884
1885void
1886aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1887 PPCODE:
1888{
1889 dREQ;
1890
1891 req->type = EIO_READDIR;
1892 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1893
1894 if (flags & EIO_READDIR_DENTS)
1895 req->int1 |= EIO_READDIR_CUSTOM2;
1896
1897 req_set_path1 (req, pathname);
1898
1899 REQ_SEND;
1900}
1901
1902void
1903aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1904 PPCODE:
1905{
1906 dREQ;
1907
1908 req->type = EIO_MKDIR;
1909 req->int2 = mode;
1910 req_set_path1 (req, pathname);
1911
1912 REQ_SEND;
1913}
1914
1915void
1916aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1917 ALIAS:
1183 aio_unlink = REQ_UNLINK 1918 aio_unlink = EIO_UNLINK
1184 aio_rmdir = REQ_RMDIR 1919 aio_rmdir = EIO_RMDIR
1185 aio_readdir = REQ_READDIR 1920 aio_readdir = EIO_READDIR
1186 PPCODE: 1921 PPCODE:
1187{ 1922{
1188 dREQ; 1923 dREQ;
1189 1924
1190 req->type = ix; 1925 req->type = ix;
1191 req->data = newSVsv (pathname); 1926 req_set_path1 (req, pathname);
1192 req->dataptr = SvPVbyte_nolen (req->data); 1927
1193
1194 REQ_SEND; 1928 REQ_SEND;
1195} 1929}
1196 1930
1197void 1931void
1198aio_link (oldpath,newpath,callback=&PL_sv_undef) 1932aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1199 SV * oldpath
1200 SV * newpath
1201 SV * callback
1202 ALIAS: 1933 ALIAS:
1203 aio_link = REQ_LINK 1934 aio_link = EIO_LINK
1204 aio_symlink = REQ_SYMLINK 1935 aio_symlink = EIO_SYMLINK
1205 aio_rename = REQ_RENAME 1936 aio_rename = EIO_RENAME
1206 PPCODE: 1937 PPCODE:
1207{ 1938{
1939 eio_wd wd2 = 0;
1208 dREQ; 1940 dREQ;
1209 1941
1210 req->type = ix; 1942 req->type = ix;
1211 req->fh = newSVsv (oldpath); 1943 req_set_path1 (req, oldpath);
1212 req->data2ptr = SvPVbyte_nolen (req->fh); 1944 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1213 req->data = newSVsv (newpath); 1945 req->int3 = (long)wd2;
1214 req->dataptr = SvPVbyte_nolen (req->data);
1215 1946
1216 REQ_SEND; 1947 REQ_SEND;
1217} 1948}
1218 1949
1219void 1950void
1220aio_sleep (delay,callback=&PL_sv_undef) 1951aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1221 double delay
1222 SV * callback
1223 PPCODE: 1952 PPCODE:
1224{ 1953{
1954 eio_wd wd2 = 0;
1225 dREQ; 1955 dREQ;
1226 1956
1227 req->type = REQ_SLEEP; 1957 req->type = EIO_RENAME;
1228 req->fd = delay < 0. ? 0 : delay; 1958 req_set_path1 (req, oldpath);
1229 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1959 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1230 1960 req->int2 = flags;
1961 req->int3 = (long)wd2;
1962
1231 REQ_SEND; 1963 REQ_SEND;
1232} 1964}
1233 1965
1234void 1966void
1235aio_group (callback=&PL_sv_undef) 1967aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1236 SV * callback 1968 PPCODE:
1237 PROTOTYPE: ;$ 1969{
1970 dREQ;
1971
1972 req->type = EIO_MKNOD;
1973 req->int2 = (mode_t)mode;
1974 req->offs = dev;
1975 req_set_path1 (req, pathname);
1976
1977 REQ_SEND;
1978}
1979
1980void
1981aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1982 ALIAS:
1983 aio_mtouch = EIO_MTOUCH
1984 aio_msync = EIO_MSYNC
1238 PPCODE: 1985 PPCODE:
1239{ 1986{
1987 STRLEN svlen;
1988 char *svptr = SvPVbyte (data, svlen);
1989 UV len = SvUV (length);
1990
1991 if (flags < 0)
1992 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1993
1994 if (offset < 0)
1995 offset += svlen;
1996
1997 if (offset < 0 || offset > svlen)
1998 croak ("offset outside of scalar");
1999
2000 if (!SvOK (length) || len + offset > svlen)
2001 len = svlen - offset;
2002
2003 {
2004 dREQ;
2005
2006 req->type = ix;
2007 req->sv2 = SvREFCNT_inc (data);
2008 req->ptr2 = (char *)svptr + offset;
2009 req->size = len;
2010 req->int1 = flags;
2011
2012 REQ_SEND;
2013 }
2014}
2015
2016void
2017aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2018 PPCODE:
2019{
2020 STRLEN svlen;
2021 char *svptr = SvPVbyte (data, svlen);
2022 UV len = SvUV (length);
2023
2024 if (offset < 0)
2025 offset += svlen;
2026
2027 if (offset < 0 || offset > svlen)
2028 croak ("offset outside of scalar");
2029
2030 if (!SvOK (length) || len + offset > svlen)
2031 len = svlen - offset;
2032
2033 {
2034 dREQ;
2035
2036 req->type = EIO_MLOCK;
2037 req->sv2 = SvREFCNT_inc (data);
2038 req->ptr2 = (char *)svptr + offset;
2039 req->size = len;
2040
2041 REQ_SEND;
2042 }
2043}
2044
2045void
2046aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2047 PPCODE:
2048{
2049 dREQ;
2050
2051 req->type = EIO_MLOCKALL;
2052 req->int1 = flags;
2053
2054 REQ_SEND;
2055}
2056
2057void
2058aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2059 PPCODE:
2060{
2061 int fd = s_fileno_croak (fh, 0);
1240 dREQ; 2062 dREQ;
1241 2063
1242 req->type = REQ_GROUP; 2064 req->type = EIO_CUSTOM;
1243 req_send (req); 2065 req->sv1 = newSVsv (fh);
2066 req->int1 = fd;
1244 2067
1245 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2068 req->feed = fiemap;
1246} 2069#if HAVE_FIEMAP
2070 /* keep our fingers crossed that the next two types are 64 bit */
2071 req->offs = start;
2072 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2073 req->int2 = flags;
2074 req->int3 = SvOK (count) ? SvIV (count) : -1;
2075#endif
1247 2076
2077 REQ_SEND;
2078}
2079
1248void 2080void
1249aio_nop (callback=&PL_sv_undef) 2081aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1250 SV * callback 2082 PPCODE:
2083{
2084 char *svptr = 0;
2085
2086 sv_clear_foreign (data);
2087
2088 if (length) /* known length, directly read into scalar */
2089 {
2090 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2091 svptr = sv_grow (data, length + 1);
2092 else if (SvCUR (data) < length)
2093 croak ("length outside of scalar, and cannot grow");
2094 else
2095 svptr = SvPVbyte_nolen (data);
2096 }
2097
2098 {
2099 dREQ;
2100
2101 req->type = EIO_SLURP;
2102 req_set_path1 (req, pathname);
2103 req->offs = offset;
2104 req->size = length;
2105 req->sv2 = SvREFCNT_inc (data);
2106 req->ptr2 = svptr;
2107
2108 if (!SvREADONLY (data))
2109 {
2110 SvREADONLY_on (data);
2111 req->flags |= FLAG_SV2_RO_OFF;
2112 }
2113
2114 REQ_SEND;
2115 }
2116}
2117
2118void
2119aio_busy (double delay, SV *callback = &PL_sv_undef)
1251 PPCODE: 2120 PPCODE:
1252{ 2121{
1253 dREQ; 2122 dREQ;
1254 2123
1255 req->type = REQ_NOP; 2124 req->type = EIO_BUSY;
2125 req->nv1 = delay < 0. ? 0. : delay;
1256 2126
1257 REQ_SEND; 2127 REQ_SEND;
1258} 2128}
1259 2129
1260#if 0
1261
1262void 2130void
1263aio_pri (int pri = DEFAULT_PRI) 2131aio_group (SV *callback = &PL_sv_undef)
2132 PPCODE:
2133{
2134 dREQ;
2135
2136 req->type = EIO_GROUP;
2137
2138 PUTBACK;
2139 req_submit (req);
2140 SPAGAIN;
2141
2142 XPUSHs (req_sv (req, aio_grp_stash));
2143}
2144
2145void
2146aio_nop (SV *callback = &PL_sv_undef)
2147 ALIAS:
2148 aio_nop = EIO_NOP
2149 aio_sync = EIO_SYNC
2150 PPCODE:
2151{
2152 dREQ;
2153
2154 req->type = ix;
2155
2156 REQ_SEND;
2157}
2158
2159int
2160aioreq_pri (int pri = NO_INIT)
1264 CODE: 2161 CODE:
2162 RETVAL = next_pri;
2163 if (items > 0)
2164 {
1265 if (pri < PRI_MIN) pri = PRI_MIN; 2165 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1266 if (pri > PRI_MAX) pri = PRI_MAX; 2166 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1267 next_pri = pri + PRI_BIAS; 2167 next_pri = pri;
2168 }
2169 OUTPUT:
2170 RETVAL
1268 2171
1269#endif 2172void
2173aioreq_nice (int nice = 0)
2174 CODE:
2175 nice = next_pri - nice;
2176 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
2177 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
2178 next_pri = nice;
1270 2179
1271void 2180void
1272flush () 2181flush ()
1273 PROTOTYPE:
1274 CODE: 2182 CODE:
1275 while (nreqs) 2183 while (eio_nreqs ())
1276 { 2184 {
1277 poll_wait (); 2185 poll_wait ();
1278 poll_cb (); 2186 poll_cb ();
1279 } 2187 }
1280 2188
1281void 2189int
1282poll() 2190poll ()
1283 PROTOTYPE:
1284 CODE: 2191 CODE:
1285 if (nreqs)
1286 {
1287 poll_wait (); 2192 poll_wait ();
1288 poll_cb (); 2193 RETVAL = poll_cb ();
1289 }
1290
1291int
1292poll_fileno()
1293 PROTOTYPE:
1294 CODE:
1295 RETVAL = respipe [0];
1296 OUTPUT: 2194 OUTPUT:
1297 RETVAL 2195 RETVAL
1298 2196
1299int 2197int
2198poll_fileno ()
2199 CODE:
2200 RETVAL = s_epipe_fd (&respipe);
2201 OUTPUT:
2202 RETVAL
2203
2204int
1300poll_cb(...) 2205poll_cb (...)
1301 PROTOTYPE: 2206 PROTOTYPE:
1302 CODE: 2207 CODE:
1303 RETVAL = poll_cb (); 2208 RETVAL = poll_cb ();
1304 OUTPUT: 2209 OUTPUT:
1305 RETVAL 2210 RETVAL
1306 2211
1307void 2212void
1308poll_wait() 2213poll_wait ()
2214 CODE:
2215 poll_wait ();
2216
2217int
2218nreqs ()
2219 CODE:
2220 RETVAL = eio_nreqs ();
2221 OUTPUT:
2222 RETVAL
2223
2224int
2225nready ()
2226 CODE:
2227 RETVAL = eio_nready ();
2228 OUTPUT:
2229 RETVAL
2230
2231int
2232npending ()
2233 CODE:
2234 RETVAL = eio_npending ();
2235 OUTPUT:
2236 RETVAL
2237
2238int
2239nthreads ()
2240 CODE:
2241 RETVAL = eio_nthreads ();
2242 OUTPUT:
2243 RETVAL
2244
2245int
2246fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2247 CODE:
2248 RETVAL = posix_fadvise (fh, offset, length, advice);
2249 OUTPUT:
2250 RETVAL
2251
2252IV
2253sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2254 CODE:
2255 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2256 OUTPUT:
2257 RETVAL
2258
2259void
2260mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2261 PPCODE:
2262 sv_clear_foreign (scalar);
2263{
2264 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2265 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2266 if (addr == (void *)-1)
2267 XSRETURN_NO;
2268
2269 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2270
2271 if (!(prot & PROT_WRITE))
2272 SvREADONLY_on (scalar);
2273
2274 XSRETURN_YES;
2275}
2276
2277void
2278munmap (SV *scalar)
2279 CODE:
2280 sv_clear_foreign (scalar);
2281
2282SV *
2283mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2284 CODE:
2285{
2286 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2287 void *new;
2288
2289 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2290 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2291
2292 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2293
2294 RETVAL = &PL_sv_no;
2295
2296 if (new != (void *)-1)
2297 {
2298 RETVAL = new == (void *)mg->mg_ptr
2299 ? newSVpvn ("0 but true", 10)
2300 : &PL_sv_yes;
2301
2302 mg->mg_ptr = (char *)new;
2303 mg->mg_obj = (SV *)new_length;
2304
2305 SvPVX (scalar) = mg->mg_ptr;
2306 SvCUR_set (scalar, new_length);
2307 }
2308}
2309 OUTPUT:
2310 RETVAL
2311
2312int
2313madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2314 ALIAS:
2315 mprotect = 1
2316 CODE:
2317{
2318 STRLEN svlen;
2319 void *addr = SvPVbyte (scalar, svlen);
2320 STRLEN len = SvUV (length);
2321
2322 if (offset < 0)
2323 offset += svlen;
2324
2325 if (offset < 0 || offset > svlen)
2326 croak ("offset outside of scalar");
2327
2328 if (!SvOK (length) || len + offset > svlen)
2329 len = svlen - offset;
2330
2331 addr = (void *)(((intptr_t)addr) + offset);
2332 eio_page_align (&addr, &len);
2333
2334 switch (ix)
2335 {
2336 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2337 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2338 }
2339}
2340 OUTPUT:
2341 RETVAL
2342
2343int
2344munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2345 CODE:
2346{
2347 STRLEN svlen;
2348 void *addr = SvPVbyte (scalar, svlen);
2349 size_t len = SvUV (length);
2350
2351 if (offset < 0)
2352 offset += svlen;
2353
2354 if (offset < 0 || offset > svlen)
2355 croak ("offset outside of scalar");
2356
2357 if (!SvOK (length) || len + offset > svlen)
2358 len = svlen - offset;
2359
2360 addr = (void *)(((intptr_t)addr) + offset);
2361 eio_page_align (&addr, &len);
2362#if _POSIX_MEMLOCK_RANGE
2363 RETVAL = munlock (addr, len);
2364#else
2365 RETVAL = EIO_ENOSYS ();
2366#endif
2367}
2368 OUTPUT:
2369 RETVAL
2370
2371int
2372mlockall (int flags)
2373 PROTOTYPE: $;
2374 CODE:
2375 RETVAL = eio_mlockall_sync (flags);
2376 OUTPUT:
2377 RETVAL
2378
2379int
2380munlockall ()
2381 CODE:
2382#if _POSIX_MEMLOCK
2383 munlockall ();
2384#else
2385 RETVAL = EIO_ENOSYS ();
2386#endif
2387 OUTPUT:
2388 RETVAL
2389
2390int
2391statx (SV8 *pathname, int flags, UV mask)
2392 CODE:
2393{
2394 /* undocumented, and might go away, and anyway, should use eio_statx */
2395 SV *wdsv = 0;
2396 SV *pathsv = 0;
2397 eio_wd wd = EIO_CWD;
2398 void *ptr;
2399 int res;
2400
2401 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2402 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2403
2404 SvREFCNT_dec (pathsv);
2405 SvREFCNT_dec (wdsv);
2406}
2407 OUTPUT:
2408 RETVAL
2409
2410U32
2411stx_mode ()
1309 PROTOTYPE: 2412 PROTOTYPE:
1310 CODE: 2413 CODE:
2414#if HAVE_STATX
2415 RETVAL = stx.stx_mode;
2416#else
2417 XSRETURN_UNDEF;
2418#endif
2419 OUTPUT:
2420 RETVAL
2421
2422#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2423#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2424#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2425#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2426#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2427#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2428#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2429#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2430#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2431#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2432#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2433#define STATX_OFFSET_size statx_offsetof (stx_size)
2434#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2435#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2436#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2437#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2438#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2439#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2440
2441U32
2442stx_mask ()
2443 PROTOTYPE:
2444 ALIAS:
2445 stx_mask = STATX_OFFSET_mask
2446 stx_blksize = STATX_OFFSET_blksize
2447 stx_nlink = STATX_OFFSET_nlink
2448 stx_uid = STATX_OFFSET_uid
2449 stx_gid = STATX_OFFSET_gid
2450 stx_rdev_major = STATX_OFFSET_rdev_major
2451 stx_rdev_minor = STATX_OFFSET_rdev_minor
2452 stx_dev_major = STATX_OFFSET_dev_major
2453 stx_dev_minor = STATX_OFFSET_dev_minor
2454 CODE:
2455#if HAVE_STATX
2456 RETVAL = *(__u32 *)((char *)&stx + ix);
2457#else
2458 XSRETURN_UNDEF;
2459#endif
2460 OUTPUT:
2461 RETVAL
2462
2463VAL64
2464stx_attributes ()
2465 PROTOTYPE:
2466 ALIAS:
2467 stx_attributes = STATX_OFFSET_attributes
2468 stx_ino = STATX_OFFSET_ino
2469 stx_size = STATX_OFFSET_size
2470 stx_blocks = STATX_OFFSET_blocks
2471 stx_attributes_mask = STATX_OFFSET_attributes_mask
2472 CODE:
2473#if HAVE_STATX
2474 RETVAL = *(__u64 *)((char *)&stx + ix);
2475#else
2476 XSRETURN_UNDEF;
2477#endif
2478 OUTPUT:
2479 RETVAL
2480
2481NV
2482stx_atime ()
2483 PROTOTYPE:
2484 ALIAS:
2485 stx_atime = STATX_OFFSET_atime
2486 stx_btime = STATX_OFFSET_btime
2487 stx_ctime = STATX_OFFSET_ctime
2488 stx_mtime = STATX_OFFSET_mtime
2489 CODE:
2490#if HAVE_STATX
2491 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2492 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2493#else
2494 XSRETURN_UNDEF;
2495#endif
2496 OUTPUT:
2497 RETVAL
2498
2499VAL64
2500stx_atimesec ()
2501 PROTOTYPE:
2502 ALIAS:
2503 stx_atimesec = STATX_OFFSET_atime
2504 stx_btimesec = STATX_OFFSET_btime
2505 stx_ctimesec = STATX_OFFSET_ctime
2506 stx_mtimesec = STATX_OFFSET_mtime
2507 CODE:
2508#if HAVE_STATX
2509 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2510 RETVAL = ts->tv_sec;
2511#else
2512 XSRETURN_UNDEF;
2513#endif
2514 OUTPUT:
2515 RETVAL
2516
2517U32
2518stx_atimensec ()
2519 PROTOTYPE:
2520 ALIAS:
2521 stx_atimensec = STATX_OFFSET_atime
2522 stx_btimensec = STATX_OFFSET_btime
2523 stx_ctimensec = STATX_OFFSET_ctime
2524 stx_mtimensec = STATX_OFFSET_mtime
2525 CODE:
2526#if HAVE_STATX
2527 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2528 RETVAL = ts->tv_nsec;
2529#else
2530 RETVAL = 0;
2531#endif
2532 OUTPUT:
2533 RETVAL
2534
2535void
2536accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2537 PPCODE:
2538{
2539 SV *retval;
2540#if HAVE_ACCEPT4
2541 socklen_t salen_ = salen ? salen + 1 : 0;
2542
1311 if (nreqs) 2543 if (salen)
1312 poll_wait (); 2544 {
2545 sv_upgrade (sockaddr, SVt_PV);
2546 sv_grow (sockaddr, salen_);
2547 }
2548
2549 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2550
2551 retval = newmortalFH (res, O_RDWR);
2552
2553 if (res >= 0 && salen > 0)
2554 {
2555 if (salen_ > salen + 1)
2556 salen_ = salen + 1;
2557
2558 SvPOK_only (sockaddr);
2559 SvCUR_set (sockaddr, salen_);
2560 }
2561#else
2562 errno = ENOSYS;
2563 retval = &PL_sv_undef;
2564#endif
2565 XPUSHs (retval);
2566}
2567
2568ssize_t
2569splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2570 CODE:
2571{
2572#if HAVE_LINUX_SPLICE
2573 loff_t off_in_, off_out_;
2574 RETVAL = splice (
2575 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2576 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2577 length, flags
2578 );
2579#else
2580 RETVAL = EIO_ENOSYS ();
2581#endif
2582}
2583 OUTPUT:
2584 RETVAL
2585
2586ssize_t
2587tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2588 CODE:
2589#if HAVE_LINUX_SPLICE
2590 RETVAL = tee (rfh, wfh, length, flags);
2591#else
2592 RETVAL = EIO_ENOSYS ();
2593#endif
2594 OUTPUT:
2595 RETVAL
1313 2596
1314int 2597int
1315nreqs() 2598pipesize (aio_rfd rfh, int new_size = -1)
2599 PROTOTYPE: $;$
2600 CODE:
2601#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2602 if (new_size >= 0)
2603 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2604 else
2605 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2606#else
2607 errno = ENOSYS;
2608 RETVAL = -1;
2609#endif
2610 OUTPUT:
2611 RETVAL
2612
2613void
2614pipe2 (int flags = 0)
1316 PROTOTYPE: 2615 PROTOTYPE: ;$
2616 PPCODE:
2617{
2618 int fd[2];
2619 int res;
2620
2621 if (flags)
2622#if HAVE_PIPE2
2623 res = pipe2 (fd, flags);
2624#else
2625 res = (errno = ENOSYS, -1);
2626#endif
2627 else
2628 res = pipe (fd);
2629
2630 if (!res)
2631 {
2632 EXTEND (SP, 2);
2633 PUSHs (newmortalFH (fd[0], O_RDONLY));
2634 PUSHs (newmortalFH (fd[1], O_WRONLY));
2635 }
2636}
2637
2638void
2639pidfd_open (int pid, unsigned int flags = 0)
2640 PPCODE:
2641{
2642 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2643 int fd = syscall (SYS_pidfd_open, pid, flags);
2644 XPUSHs (newmortalFH (fd, O_RDWR));
2645}
2646
2647int
2648pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
2649 PPCODE:
2650{
2651 int res;
2652 siginfo_t si = { 0 };
2653
2654 if (SvOK (siginfo))
2655 {
2656 HV *hv;
2657 SV **svp;
2658
2659 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2660 croak ("siginfo argument must be a hashref code, pid, uid and value_int or value_ptr members, caught");
2661
2662 hv = (HV *)SvRV (siginfo);
2663
2664 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2665 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2666 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2667 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2668 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2669 }
2670
2671 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2672 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2673
2674 XPUSHs (sv_2mortal (newSViv (res)));
2675}
2676
2677void
2678pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2679 PPCODE:
2680{
2681 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2682 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2683 XPUSHs (newmortalFH (fd, O_RDWR));
2684}
2685
2686void
2687eventfd (unsigned int initval = 0, int flags = 0)
2688 PPCODE:
2689{
2690 int fd;
2691#if HAVE_EVENTFD
2692 fd = eventfd (initval, flags);
2693#else
2694 fd = (errno = ENOSYS, -1);
2695#endif
2696
2697 XPUSHs (newmortalFH (fd, O_RDWR));
2698}
2699
2700void
2701timerfd_create (int clockid, int flags = 0)
2702 PPCODE:
2703{
2704 int fd;
2705#if HAVE_TIMERFD
2706 fd = timerfd_create (clockid, flags);
2707#else
2708 fd = (errno = ENOSYS, -1);
2709#endif
2710
2711 XPUSHs (newmortalFH (fd, O_RDWR));
2712}
2713
2714void
2715timerfd_settime (SV *fh, int flags, NV interval, NV value)
2716 PPCODE:
2717{
2718 int fd = s_fileno_croak (fh, 0);
2719#if HAVE_TIMERFD
2720 int res;
2721 struct itimerspec its, ots;
2722
2723 ts_set (&its.it_interval, interval);
2724 ts_set (&its.it_value , value);
2725 res = timerfd_settime (fd, flags, &its, &ots);
2726
2727 if (!res)
2728 {
2729 EXTEND (SP, 2);
2730 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2731 PUSHs (newSVnv (ts_get (&ots.it_value)));
2732 }
2733#else
2734 errno = ENOSYS;
2735#endif
2736}
2737
2738void
2739timerfd_gettime (SV *fh)
2740 PPCODE:
2741{
2742 int fd = s_fileno_croak (fh, 0);
2743#if HAVE_TIMERFD
2744 int res;
2745 struct itimerspec ots;
2746 res = timerfd_gettime (fd, &ots);
2747
2748 if (!res)
2749 {
2750 EXTEND (SP, 2);
2751 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2752 PUSHs (newSVnv (ts_get (&ots.it_value)));
2753 }
2754#else
2755 errno = ENOSYS;
2756#endif
2757}
2758
2759void
2760memfd_create (SV8 *pathname, int flags = 0)
2761 PPCODE:
2762{
2763 int fd;
2764#if HAVE_MEMFD_CREATE
2765 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2766#else
2767 fd = (errno = ENOSYS, -1);
2768#endif
2769
2770 XPUSHs (newmortalFH (fd, O_RDWR));
2771}
2772
2773UV
2774get_fdlimit ()
1317 CODE: 2775 CODE:
1318 RETVAL = nreqs; 2776#if HAVE_RLIMITS
2777 struct rlimit rl;
2778 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2779 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2780#endif
2781 XSRETURN_UNDEF;
1319 OUTPUT: 2782 OUTPUT:
1320 RETVAL 2783 RETVAL
2784
2785void
2786min_fdlimit (UV limit = 0x7fffffffU)
2787 CODE:
2788{
2789#if HAVE_RLIMITS
2790 struct rlimit rl;
2791 rlim_t orig_rlim_max;
2792 UV bit;
2793
2794 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2795 goto fail;
2796
2797 if (rl.rlim_cur == RLIM_INFINITY)
2798 XSRETURN_YES;
2799
2800 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2801
2802 if (rl.rlim_cur < limit)
2803 {
2804 rl.rlim_cur = limit;
2805
2806 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2807 rl.rlim_max = rl.rlim_cur;
2808 }
2809
2810 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2811 XSRETURN_YES;
2812
2813 if (errno == EPERM)
2814 {
2815 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2816 /* our limit overflows a system-wide limit */
2817 /* try an adaptive algorithm, but do not lower the hardlimit */
2818 rl.rlim_max = 0;
2819 for (bit = 0x40000000U; bit; bit >>= 1)
2820 {
2821 rl.rlim_max |= bit;
2822 rl.rlim_cur = rl.rlim_max;
2823
2824 /* never decrease the hard limit */
2825 if (rl.rlim_max < orig_rlim_max)
2826 break;
2827
2828 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2829 rl.rlim_max &= ~bit; /* too high, remove bit again */
2830 }
2831
2832 /* now, raise the soft limit to the max permitted */
2833 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2834 {
2835 rl.rlim_cur = rl.rlim_max;
2836 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2837 errno = EPERM;
2838 }
2839 }
2840#endif
2841 fail:
2842 XSRETURN_UNDEF;
2843}
2844
2845void _on_next_submit (SV *cb)
2846 CODE:
2847 SvREFCNT_dec (on_next_submit);
2848 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1321 2849
1322PROTOTYPES: DISABLE 2850PROTOTYPES: DISABLE
1323 2851
2852MODULE = IO::AIO PACKAGE = IO::AIO::WD
2853
2854BOOT:
2855{
2856 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2857 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2858}
2859
2860void
2861DESTROY (SV *self)
2862 CODE:
2863{
2864 aio_wd wd = SvAIO_WD (self);
2865#if HAVE_AT
2866 {
2867 SV *callback = &PL_sv_undef;
2868 dREQ; /* clobbers next_pri :/ */
2869 next_pri = req->pri; /* restore next_pri */
2870 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2871 req->type = EIO_WD_CLOSE;
2872 req->wd = wd;
2873 REQ_SEND;
2874 }
2875#else
2876 eio_wd_close_sync (wd);
2877#endif
2878}
2879
1324MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2880MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1325 2881
1326void 2882void
1327cancel (aio_req_ornot req) 2883cancel (aio_req_ornot req)
1328 PROTOTYPE:
1329 CODE: 2884 CODE:
1330 req_cancel (req); 2885 eio_cancel (req);
1331 2886
1332void 2887void
1333cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2888cb (aio_req_ornot req, SV *callback = NO_INIT)
1334 CODE: 2889 PPCODE:
2890{
2891 if (GIMME_V != G_VOID)
2892 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2893
2894 if (items > 1)
2895 {
2896 SV *cb_cv = get_cb (callback);
2897
1335 SvREFCNT_dec (req->callback); 2898 SvREFCNT_dec (req->callback);
1336 req->callback = newSVsv (callback); 2899 req->callback = SvREFCNT_inc (cb_cv);
2900 }
2901}
1337 2902
1338MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2903MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1339 2904
1340void 2905void
1341add (aio_req grp, ...) 2906add (aio_req grp, ...)
1342 PPCODE: 2907 PPCODE:
1343{ 2908{
1344 int i; 2909 int i;
1345 aio_req req;
1346 2910
1347 if (grp->fd == 2) 2911 if (grp->int1 == 2)
1348 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2912 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1349 2913
1350 for (i = 1; i < items; ++i ) 2914 for (i = 1; i < items; ++i )
1351 { 2915 {
2916 aio_req req;
2917
1352 if (GIMME_V != G_VOID) 2918 if (GIMME_V != G_VOID)
1353 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2919 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1354 2920
1355 req = SvAIO_REQ (ST (i)); 2921 req = SvAIO_REQ (ST (i));
1356 2922
1357 if (req) 2923 if (req)
1358 { 2924 eio_grp_add (grp, req);
1359 ++grp->length;
1360 req->grp = grp;
1361
1362 req->grp_prev = 0;
1363 req->grp_next = grp->grp_first;
1364
1365 if (grp->grp_first)
1366 grp->grp_first->grp_prev = req;
1367
1368 grp->grp_first = req;
1369 }
1370 } 2925 }
1371} 2926}
2927
2928void
2929cancel_subs (aio_req_ornot req)
2930 CODE:
2931 req_cancel_subs (req);
1372 2932
1373void 2933void
1374result (aio_req grp, ...) 2934result (aio_req grp, ...)
1375 CODE: 2935 CODE:
1376{ 2936{
1377 int i; 2937 int i;
2938 AV *av;
2939
2940 grp->errorno = errno;
2941
1378 AV *av = newAV (); 2942 av = newAV ();
2943 av_extend (av, items - 1);
1379 2944
1380 for (i = 1; i < items; ++i ) 2945 for (i = 1; i < items; ++i )
1381 av_push (av, newSVsv (ST (i))); 2946 av_push (av, newSVsv (ST (i)));
1382 2947
1383 SvREFCNT_dec (grp->data); 2948 SvREFCNT_dec (grp->sv1);
1384 grp->data = (SV *)av; 2949 grp->sv1 = (SV *)av;
1385} 2950}
1386 2951
1387void 2952void
2953errno (aio_req grp, int errorno = errno)
2954 CODE:
2955 grp->errorno = errorno;
2956
2957void
1388feed_limit (aio_req grp, int limit) 2958limit (aio_req grp, int limit)
1389 CODE: 2959 CODE:
1390 grp->fd2 = limit; 2960 eio_grp_limit (grp, limit);
1391 aio_grp_feed (grp);
1392 2961
1393void 2962void
1394feed (aio_req grp, SV *callback=&PL_sv_undef) 2963feed (aio_req grp, SV *callback = &PL_sv_undef)
1395 CODE: 2964 CODE:
1396{ 2965{
1397 SvREFCNT_dec (grp->fh2); 2966 SvREFCNT_dec (grp->sv2);
1398 grp->fh2 = newSVsv (callback); 2967 grp->sv2 = newSVsv (callback);
2968 grp->feed = aio_grp_feed;
1399 2969
1400 if (grp->fd2 <= 0) 2970 if (grp->int2 <= 0)
1401 grp->fd2 = 2; 2971 grp->int2 = 2;
1402 2972
1403 aio_grp_feed (grp); 2973 eio_grp_limit (grp, grp->int2);
1404} 2974}
1405 2975

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