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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.59 by root, Mon Oct 23 18:56:27 2006 UTC vs.
Revision 1.287 by root, Tue Dec 29 15:28:02 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 <sys/wait.h>
90 #include <unistd.h>
91 #include <utime.h>
92 #include <signal.h>
93
94 #define EIO_STRUCT_STAT Stat_t
95
96#endif
97
98/*****************************************************************************/
99
100#if __GNUC__ >= 3
101# define expect(expr,value) __builtin_expect ((expr),(value))
102#else
103# define expect(expr,value) (expr)
104#endif
105
106#define expect_false(expr) expect ((expr) != 0, 0)
107#define expect_true(expr) expect ((expr) != 0, 1)
108
109/*****************************************************************************/
110
111#include "config.h"
112
113#if HAVE_SYS_MKDEV_H
28# include <sys/socket.h> 114# include <sys/mkdev.h>
115#elif HAVE_SYS_SYSMACROS_H
116# include <sys/sysmacros.h>
117#endif
118
119#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
120# include <sys/mman.h>
121#endif
122
123#if HAVE_SYS_UIO_H
29# include <sys/uio.h> 124# include <sys/uio.h>
30# elif __hpux 125#endif
31# include <sys/socket.h> 126
32# elif __solaris /* not yet */ 127#if HAVE_ST_XTIMENSEC
128# define ATIMENSEC PL_statcache.st_atimensec
129# define MTIMENSEC PL_statcache.st_mtimensec
130# define CTIMENSEC PL_statcache.st_ctimensec
131#elif HAVE_ST_XTIMESPEC
132# define ATIMENSEC PL_statcache.st_atim.tv_nsec
133# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
134# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
135#else
136# define ATIMENSEC 0
137# define MTIMENSEC 0
138# define CTIMENSEC 0
139#endif
140
141#if HAVE_ST_BIRTHTIMENSEC
142# define BTIMESEC PL_statcache.st_birthtime
143# define BTIMENSEC PL_statcache.st_birthtimensec
144#elif HAVE_ST_BIRTHTIMESPEC
145# define BTIMESEC PL_statcache.st_birthtim.tv_sec
146# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
147#else
148# define BTIMESEC 0
149# define BTIMENSEC 0
150#endif
151
152#if HAVE_ST_GEN
153# define ST_GEN PL_statcache.st_gen
154#else
155# define ST_GEN 0
156#endif
157
158#include "schmorp.h"
159
160#if HAVE_EVENTFD
33# include <sys/sendfile.h> 161# include <sys/eventfd.h>
162#endif
163
164#if HAVE_TIMERFD
165# include <sys/timerfd.h>
166#endif
167
168#if HAVE_RLIMITS
169 #include <sys/time.h>
170 #include <sys/resource.h>
171#endif
172
173typedef SV SV8; /* byte-sv, used for argument-checking */
174typedef int aio_rfd; /* read file desriptor */
175typedef int aio_wfd; /* write file descriptor */
176
177static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
178
179#define EIO_REQ_MEMBERS \
180 SV *callback; \
181 SV *sv1, *sv2; \
182 SV *sv3, *sv4; \
183 STRLEN stroffset; \
184 SV *self;
185
186#define EIO_NO_WRAPPERS 1
187
188#include "libeio/eio.h"
189
190static int req_invoke (eio_req *req);
191#define EIO_FINISH(req) req_invoke (req)
192static void req_destroy (eio_req *grp);
193#define EIO_DESTROY(req) req_destroy (req)
194
195#include "libeio/eio.c"
196
197#if !HAVE_POSIX_FADVISE
198# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
199#endif
200
201#if !HAVE_POSIX_MADVISE
202# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
203#endif
204
205#ifndef MAP_ANONYMOUS
206# ifdef MAP_ANON
207# define MAP_ANONYMOUS MAP_ANON
34# else 208# else
35# error sendfile support requested but not available 209# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
36# endif 210# endif
37#endif 211#endif
38 212
39/* used for struct dirent, AIX doesn't provide it */ 213#ifndef makedev
40#ifndef NAME_MAX 214# define makedev(maj,min) (((maj) << 8) | (min))
41# define NAME_MAX 4096
42#endif 215#endif
216#ifndef major
217# define major(dev) ((dev) >> 8)
218#endif
219#ifndef minor
220# define minor(dev) ((dev) & 0xff)
221#endif
43 222
44#if __ia64 223/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
45# define STACKSIZE 65536 224#ifdef __sun
225# undef PAGESIZE
226#endif
227
228#if PAGESIZE <= 0
229# define PAGESIZE sysconf (_SC_PAGESIZE)
230#endif
231
232#if HAVE_SYSCALL
233#include <sys/syscall.h>
46#else 234#else
47# define STACKSIZE 8192 235# define syscall(nr,...) (errno = ENOSYS, -1)
236#endif
237
238/*****************************************************************************/
239
240#if !_POSIX_MAPPED_FILES
241# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
242# define munmap(addr,length) EIO_ENOSYS ()
243#endif
244
245#if !_POSIX_MEMORY_PROTECTION
246# define mprotect(addr,len,prot) EIO_ENOSYS ()
247#endif
248
249#if !MREMAP_MAYMOVE
250# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
251#endif
252
253#define FOREIGN_MAGIC PERL_MAGIC_ext
254
255static int ecb_cold
256mmap_free (pTHX_ SV *sv, MAGIC *mg)
257{
258 int old_errno = errno;
259 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
260 errno = old_errno;
261
262 mg->mg_obj = 0; /* just in case */
263
264 SvREADONLY_off (sv);
265
266 if (SvPVX (sv) != mg->mg_ptr)
267 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
268
269 SvCUR_set (sv, 0);
270 SvPVX (sv) = 0;
271 SvOK_off (sv);
272
273 return 0;
274}
275
276static MGVTBL mmap_vtbl = {
277 0, 0, 0, 0, mmap_free
278};
279
280static int ecb_cold
281sysfree_free (pTHX_ SV *sv, MAGIC *mg)
282{
283 free (mg->mg_ptr);
284 mg->mg_obj = 0; /* just in case */
285
286 SvREADONLY_off (sv);
287
288 if (SvPVX (sv) != mg->mg_ptr)
289 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
290
291 SvCUR_set (sv, 0);
292 SvPVX (sv) = 0;
293 SvOK_off (sv);
294
295 return 0;
296}
297
298static MGVTBL sysfree_vtbl = {
299 0, 0, 0, 0, sysfree_free
300};
301
302/*****************************************************************************/
303
304/* helper: set scalar to foreign ptr with custom free */
305ecb_noinline
306static void
307sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
308{
309 sv_force_normal (sv);
310
311 /* we store the length in mg_obj, as namlen is I32 :/ */
312 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
313 ->mg_obj = (SV *)length;
314
315 SvUPGRADE (sv, SVt_PV); /* nop... */
316
317 if (SvLEN (sv))
318 Safefree (SvPVX (sv));
319
320 SvPVX (sv) = (char *)addr;
321 SvCUR_set (sv, length);
322 SvLEN_set (sv, 0);
323 SvPOK_only (sv);
324}
325
326static void
327sv_clear_foreign (SV *sv)
328{
329 /* todo: iterate over magic and only free ours, but of course */
330 /* the perl5porters will call that (correct) behaviour buggy */
331 sv_unmagic (sv, FOREIGN_MAGIC);
332}
333
334/*****************************************************************************/
335
336/* defines all sorts of constants to 0 unless they are already defined */
337/* also provides const_iv_ and const_niv_ macros for them */
338#include "def0.h"
339
340/*****************************************************************************/
341
342static void
343fiemap (eio_req *req)
344{
345 req->result = -1;
346
347#if HAVE_FIEMAP
348 /* assume some c99 */
349 struct fiemap *fiemap = 0;
350 size_t end_offset;
351 int count = req->int3;
352
353 req->flags |= EIO_FLAG_PTR1_FREE;
354
355 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
356 /* increase in fixed steps */
357 if (count < 0)
358 count = 8;
359
360 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
361 errno = ENOMEM;
362 if (!fiemap)
363 return;
364
365 req->ptr1 = fiemap;
366
367 fiemap->fm_start = req->offs;
368 fiemap->fm_length = req->size;
369 fiemap->fm_flags = req->int2;
370 fiemap->fm_extent_count = count;
371
372 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
373 return;
374
375 if (req->int3 >= 0 /* not autosizing */
376 || !fiemap->fm_mapped_extents /* no more extents */
377 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
378 goto done;
379
380 /* else we have to loop -
381 * it would be tempting (actually I tried that first) to just query the
382 * number of extents needed, but linux often feels like not returning all
383 * extents, without telling us it left any out. this complicates
384 * this quite a bit.
385 */
386
387 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
388
389 for (;;)
390 {
391 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
392 char scratch[3072];
393 struct fiemap *incmap = (struct fiemap *)scratch;
394
395 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
396 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
397 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
398 incmap->fm_flags = fiemap->fm_flags;
399 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
400
401 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
402 return;
403
404 if (!incmap->fm_mapped_extents)
405 goto done;
406
407 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
408 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
409 errno = ENOMEM;
410 if (!fiemap)
411 return;
412
413 req->ptr1 = fiemap;
414
415 for (count = 0; count < incmap->fm_mapped_extents; ++count)
416 {
417 struct fiemap_extent *e = incmap->fm_extents + count;
418
419 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
420
421 if (e->fe_logical >= end_offset)
422 goto done;
423
424 if (e->fe_flags & FIEMAP_EXTENT_LAST)
425 goto done;
426
427 }
428 }
429
430done:
431 req->result = 0;
432
433#else
434 errno = ENOSYS;
435#endif
436}
437
438/*****************************************************************************/
439
440static int close_fd; /* dummy fd to close fds via dup2 */
441
442#if HAVE_STATX
443static struct statx stx;
444#define statx_offsetof(member) offsetof (struct statx, member)
445#define eio__statx statx
446#else
447#define statx_offsetof(member) 0
448#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
48#endif 449#endif
49 450
50enum { 451enum {
51 REQ_QUIT, 452 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}; 453};
63 454
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 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
72
73 SV *self; /* the perl counterpart of this request, if any */
74
75 SV *data, *callback;
76 SV *fh, *fh2;
77 void *dataptr, *data2ptr;
78 Stat_t *statdata;
79 off_t offset;
80 size_t length;
81 ssize_t result;
82
83 int type;
84 int fd, fd2;
85 int errorno;
86 STRLEN dataoffset;
87 mode_t mode; /* open */
88 unsigned char pri;
89 unsigned char flags;
90} aio_cb;
91
92enum {
93 FLAG_CANCELLED = 0x01,
94};
95
96typedef aio_cb *aio_req; 455typedef eio_req *aio_req;
97typedef aio_cb *aio_req_ornot; 456typedef eio_req *aio_req_ornot;
457typedef eio_wd aio_wd;
98 458
99static int started, wanted; 459static SV *on_next_submit;
100static volatile int nreqs; 460static int next_pri = EIO_PRI_DEFAULT;
101static int max_outstanding = 1<<30; 461static int max_outstanding;
102static int respipe [2];
103 462
104static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 463static s_epipe respipe;
105static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
106static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
107 464
108static volatile aio_req reqs, reqe; /* queue start, queue end */ 465static void req_destroy (aio_req req);
109static volatile aio_req ress, rese; /* queue start, queue end */
110
111static void req_invoke (aio_req req); 466static void req_cancel (aio_req req);
112static void req_free (aio_req req); 467
468static void
469want_poll (void)
470{
471 /* write a dummy byte to the pipe so fh becomes ready */
472 s_epipe_signal (&respipe);
473}
474
475static void
476done_poll (void)
477{
478 /* read any signals sent by the worker threads */
479 s_epipe_drain (&respipe);
480}
113 481
114/* must be called at most once */ 482/* must be called at most once */
115static SV *req_sv (aio_req req, const char *klass) 483ecb_noinline
484static SV *
485req_sv (aio_req req, HV *stash)
116{ 486{
117 if (!req->self) 487 if (!req->self)
118 { 488 {
119 req->self = (SV *)newHV (); 489 req->self = (SV *)newHV ();
120 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 490 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
121 } 491 }
122 492
123 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 493 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
124} 494}
125 495
126static aio_req SvAIO_REQ (SV *sv) 496static SV *
497newSVaio_wd (aio_wd wd)
498{
499 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
500}
501
502ecb_noinline
503static aio_req
504SvAIO_REQ (SV *sv)
127{ 505{
128 MAGIC *mg; 506 MAGIC *mg;
129 507
130 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 508 if (!SvROK (sv)
509 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
510 || (SvSTASH (SvRV (sv)) != aio_grp_stash
511 && SvSTASH (SvRV (sv)) != aio_req_stash
512 && !sv_derived_from (sv, "IO::AIO::REQ")))
131 croak ("object of class " AIO_REQ_KLASS " expected"); 513 croak ("object of class IO::AIO::REQ expected");
132 514
133 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 515 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
134 516
135 return mg ? (aio_req)mg->mg_ptr : 0; 517 return mg ? (aio_req)mg->mg_ptr : 0;
136} 518}
137 519
520static aio_wd
521SvAIO_WD (SV *sv)
522{
523 if (!SvROK (sv)
524 || SvTYPE (SvRV (sv)) != SVt_PVMG
525 || SvSTASH (SvRV (sv)) != aio_wd_stash)
526 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
527
528 return (aio_wd)(long)SvIVX (SvRV (sv));
529}
530
531static SV *
532newmortalFH (int fd, int flags)
533{
534 if (fd < 0)
535 return &PL_sv_undef;
536
537 GV *gv = (GV *)sv_newmortal ();
538 char sym[64];
539 int symlen;
540
541 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
542 gv_init (gv, aio_stash, sym, symlen, 0);
543
544 symlen = snprintf (
545 sym,
546 sizeof (sym),
547 "%s&=%d",
548 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
549 fd
550 );
551
552 return do_open (gv, sym, symlen, 0, 0, 0, 0)
553 ? (SV *)gv : &PL_sv_undef;
554}
555
556static void
138static void aio_grp_feed (aio_req grp) 557aio_grp_feed (aio_req grp)
139{ 558{
140 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 559 if (grp->sv2 && SvOK (grp->sv2))
141 { 560 {
142 int old_len = grp->length; 561 dSP;
143 562
144 if (grp->fh2 && SvOK (grp->fh2)) 563 ENTER;
564 SAVETMPS;
565 PUSHMARK (SP);
566 XPUSHs (req_sv (grp, aio_grp_stash));
567 PUTBACK;
568 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
569 SPAGAIN;
570 FREETMPS;
571 LEAVE;
572 }
573}
574
575ecb_noinline
576static void
577req_submit (eio_req *req)
578{
579 eio_submit (req);
580
581 if (expect_false (on_next_submit))
582 {
583 dSP;
584 SV *cb = sv_2mortal (on_next_submit);
585
586 on_next_submit = 0;
587
588 PUSHMARK (SP);
589 PUTBACK;
590 call_sv (cb, G_DISCARD | G_EVAL);
591 }
592}
593
594static int
595req_invoke (eio_req *req)
596{
597 if (req->flags & FLAG_SV2_RO_OFF)
598 SvREADONLY_off (req->sv2);
599
600 if (!EIO_CANCELLED (req) && req->callback)
601 {
602 dSP;
603 static SV *sv_result_cache; /* caches the result integer SV */
604 SV *sv_result;
605
606 ENTER;
607 SAVETMPS;
608 PUSHMARK (SP);
609 EXTEND (SP, 1);
610
611 /* do not recreate the result IV from scratch each time */
612 if (expect_true (sv_result_cache))
145 { 613 {
146 dSP; 614 sv_result = sv_result_cache; sv_result_cache = 0;
147 615 SvIV_set (sv_result, req->result);
148 ENTER; 616 SvIOK_only (sv_result);
149 SAVETMPS;
150 PUSHMARK (SP);
151 XPUSHs (req_sv (grp, AIO_GRP_KLASS));
152 PUTBACK;
153 call_sv (grp->fh2, G_VOID | G_EVAL);
154 SPAGAIN;
155 FREETMPS;
156 LEAVE;
157 } 617 }
158 618 else
159 /* stop if no progress has been made */
160 if (old_len == grp->length)
161 { 619 {
162 SvREFCNT_dec (grp->fh2); 620 sv_result = newSViv (req->result);
163 grp->fh2 = 0; 621 SvREADONLY_on (sv_result);
164 break;
165 } 622 }
623
624 switch (req->type)
625 {
626 case EIO_WD_OPEN:
627 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
628 break;
629
630 case EIO_READDIR:
631 {
632 SV *rv = &PL_sv_undef;
633
634 if (req->result >= 0)
635 {
636 int i;
637 char *names = (char *)req->ptr2;
638 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
639 AV *av = newAV ();
640
641 av_extend (av, req->result - 1);
642
643 for (i = 0; i < req->result; ++i)
644 {
645 if (req->int1 & EIO_READDIR_DENTS)
646 {
647 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
648
649 if (req->int1 & EIO_READDIR_CUSTOM2)
650 {
651 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
652 AV *avent = newAV ();
653
654 av_extend (avent, 2);
655
656 if (!sv_type [ent->type])
657 {
658 sv_type [ent->type] = newSViv (ent->type);
659 SvREADONLY_on (sv_type [ent->type]);
660 }
661
662 av_store (avent, 0, namesv);
663 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
664 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
665
666 av_store (av, i, newRV_noinc ((SV *)avent));
667 }
668 else
669 av_store (av, i, namesv);
670
671 ++ent;
672 }
673 else
674 {
675 SV *name = newSVpv (names, 0);
676 av_store (av, i, name);
677 names += SvCUR (name) + 1;
678 }
679 }
680
681 rv = sv_2mortal (newRV_noinc ((SV *)av));
682 }
683
684 PUSHs (rv);
685
686 if (req->int1 & EIO_READDIR_CUSTOM1)
687 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
688 }
689 break;
690
691 case EIO_OPEN:
692 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
693 break;
694
695 case EIO_STATVFS:
696 case EIO_FSTATVFS:
697 {
698 SV *rv = &PL_sv_undef;
699
700#ifndef _WIN32
701 if (req->result >= 0)
702 {
703 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
704 HV *hv = newHV ();
705 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
706 * chooses to make it a struct.
707 */
708 unsigned long fsid = 0;
709 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
710
711 rv = sv_2mortal (newRV_noinc ((SV *)hv));
712
713 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
714 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
715 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
716 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
717 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
718 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
719 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
720 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
721 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
722 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
723 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
724 }
725#endif
726
727 PUSHs (rv);
728 }
729
730 break;
731
732 case EIO_GROUP:
733 req->int1 = 2; /* mark group as finished */
734
735 if (req->sv1)
736 {
737 int i;
738 AV *av = (AV *)req->sv1;
739
740 EXTEND (SP, AvFILL (av) + 1);
741 for (i = 0; i <= AvFILL (av); ++i)
742 PUSHs (*av_fetch (av, i, 0));
743 }
744 break;
745
746 case EIO_NOP:
747 case EIO_BUSY:
748 break;
749
750 case EIO_READLINK:
751 case EIO_REALPATH:
752 if (req->result > 0)
753 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
754 break;
755
756 case EIO_STAT:
757 case EIO_LSTAT:
758 case EIO_FSTAT:
759 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
760
761 if (!(PL_laststatval = req->result))
762 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
763 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
764
765 PUSHs (sv_result);
766 break;
767
768 case EIO_SEEK:
769 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
770 break;
771
772 case EIO_READ:
773 {
774 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
775 *SvEND (req->sv2) = 0;
776 SvPOK_only (req->sv2);
777 SvSETMAGIC (req->sv2);
778 PUSHs (sv_result);
779 }
780 break;
781
782 case EIO_SLURP:
783 {
784 if (req->result >= 0)
785 {
786 /* if length was originally not known, we steal the malloc'ed memory */
787 if (req->flags & EIO_FLAG_PTR2_FREE)
788 {
789 req->flags &= ~EIO_FLAG_PTR2_FREE;
790 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
791 }
792 else
793 {
794 SvCUR_set (req->sv2, req->result);
795 *SvEND (req->sv2) = 0;
796 SvPOK_only (req->sv2);
797 }
798
799 SvSETMAGIC (req->sv2);
800 }
801
802 PUSHs (sv_result);
803 }
804 break;
805
806 case EIO_CUSTOM:
807 if (req->feed == fiemap)
808 {
809#if HAVE_FIEMAP
810 if (!req->result)
811 {
812 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
813
814 if (fiemap->fm_extent_count)
815 {
816 AV *av = newAV ();
817 int i;
818
819 while (fiemap->fm_mapped_extents)
820 {
821 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
822 AV *ext_av = newAV ();
823
824 av_store (ext_av, 3, newSVuv (extent->fe_flags));
825 av_store (ext_av, 2, newSVval64 (extent->fe_length));
826 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
827 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
828
829 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
830 }
831
832 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
833 }
834 else
835 {
836 SvIV_set (sv_result, fiemap->fm_mapped_extents);
837 PUSHs (sv_result);
838 }
839 }
840#endif
841 }
842 else
843 PUSHs (sv_result);
844 break;
845
846#if 0
847 case EIO_CLOSE:
848 PerlIOUnix_refcnt_dec (req->int1);
849 break;
850#endif
851
852 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
853 if (req->result > 0)
854 SvIV_set (sv_result, 0);
855 /* FALLTHROUGH */
856
857 default:
858 PUSHs (sv_result);
859 break;
860 }
861
862 errno = req->errorno;
863
864 PUTBACK;
865 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
866 SPAGAIN;
867
868 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
869 SvREFCNT_dec (sv_result);
870 else
871 sv_result_cache = sv_result;
872
873 FREETMPS;
874 LEAVE;
875
876 PUTBACK;
166 } 877 }
167}
168 878
169static void aio_grp_dec (aio_req grp) 879 return !!SvTRUE (ERRSV);
170{
171 --grp->length;
172
173 /* call feeder, if applicable */
174 aio_grp_feed (grp);
175
176 /* finish, if done */
177 if (!grp->length && grp->fd)
178 {
179 req_invoke (grp);
180 req_free (grp);
181 }
182} 880}
183 881
184static void poll_wait () 882static void
883req_destroy (aio_req req)
185{ 884{
186 if (nreqs && !ress)
187 {
188 fd_set rfd;
189 FD_ZERO(&rfd);
190 FD_SET(respipe [0], &rfd);
191
192 select (respipe [0] + 1, &rfd, 0, 0, 0);
193 }
194}
195
196static void req_invoke (aio_req req)
197{
198 dSP;
199 int errorno = errno;
200
201 if (req->flags & FLAG_CANCELLED || !SvOK (req->callback))
202 return;
203
204 errno = req->errorno;
205
206 ENTER;
207 SAVETMPS;
208 PUSHMARK (SP);
209 EXTEND (SP, 1);
210
211 switch (req->type)
212 {
213 case REQ_READDIR:
214 {
215 SV *rv = &PL_sv_undef;
216
217 if (req->result >= 0)
218 {
219 char *buf = req->data2ptr;
220 AV *av = newAV ();
221
222 while (req->result)
223 {
224 SV *sv = newSVpv (buf, 0);
225
226 av_push (av, sv);
227 buf += SvCUR (sv) + 1;
228 req->result--;
229 }
230
231 rv = sv_2mortal (newRV_noinc ((SV *)av));
232 }
233
234 PUSHs (rv);
235 }
236 break;
237
238 case REQ_OPEN:
239 {
240 /* convert fd to fh */
241 SV *fh;
242
243 PUSHs (sv_2mortal (newSViv (req->result)));
244 PUTBACK;
245 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
246 SPAGAIN;
247
248 fh = SvREFCNT_inc (POPs);
249
250 PUSHMARK (SP);
251 XPUSHs (sv_2mortal (fh));
252 }
253 break;
254
255 case REQ_GROUP:
256 req->fd = 2; /* mark group as finished */
257
258 if (req->data)
259 {
260 int i;
261 AV *av = (AV *)req->data;
262
263 EXTEND (SP, AvFILL (av) + 1);
264 for (i = 0; i <= AvFILL (av); ++i)
265 PUSHs (*av_fetch (av, i, 0));
266 }
267 break;
268
269 case REQ_NOP:
270 case REQ_SLEEP:
271 break;
272
273 default:
274 PUSHs (sv_2mortal (newSViv (req->result)));
275 break;
276 }
277
278
279 PUTBACK;
280 call_sv (req->callback, G_VOID | G_EVAL);
281 SPAGAIN;
282
283 FREETMPS;
284 LEAVE;
285
286 errno = errorno;
287
288 if (SvTRUE (ERRSV))
289 {
290 req_free (req);
291 croak (0);
292 }
293}
294
295static void req_free (aio_req req)
296{
297 if (req->grp)
298 {
299 aio_req grp = req->grp;
300
301 /* unlink request */
302 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
303 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
304
305 if (grp->grp_first == req)
306 grp->grp_first = req->grp_next;
307
308 aio_grp_dec (grp);
309 }
310
311 if (req->self) 885 if (req->self)
312 { 886 {
313 sv_unmagic (req->self, PERL_MAGIC_ext); 887 sv_unmagic (req->self, PERL_MAGIC_ext);
314 SvREFCNT_dec (req->self); 888 SvREFCNT_dec (req->self);
315 } 889 }
316 890
317 SvREFCNT_dec (req->data);
318 SvREFCNT_dec (req->fh); 891 SvREFCNT_dec (req->sv1);
319 SvREFCNT_dec (req->fh2); 892 SvREFCNT_dec (req->sv2);
893 SvREFCNT_dec (req->sv3);
894 SvREFCNT_dec (req->sv4);
320 SvREFCNT_dec (req->callback); 895 SvREFCNT_dec (req->callback);
321 Safefree (req->statdata);
322 896
323 if (req->type == REQ_READDIR && req->result >= 0)
324 free (req->data2ptr);
325
326 Safefree (req); 897 free (req);
327} 898}
328 899
329static void req_cancel (aio_req req) 900static void
901req_cancel_subs (aio_req grp)
330{ 902{
331 req->flags |= FLAG_CANCELLED;
332
333 if (req->type == REQ_GROUP) 903 if (grp->type != EIO_GROUP)
904 return;
905
906 SvREFCNT_dec (grp->sv2);
907 grp->sv2 = 0;
908
909 eio_grp_cancel (grp);
910}
911
912ecb_cold
913static void
914create_respipe (void)
915{
916 if (s_epipe_renew (&respipe))
917 croak ("IO::AIO: unable to initialize result pipe");
918}
919
920static void
921poll_wait (void)
922{
923 while (eio_nreqs ())
334 { 924 {
335 aio_req sub; 925 int size;
336 926
337 for (sub = req->grp_first; sub; sub = sub->grp_next) 927 X_LOCK (EIO_POOL->reslock);
338 req_cancel (sub); 928 size = EIO_POOL->res_queue.size;
929 X_UNLOCK (EIO_POOL->reslock);
930
931 if (size)
932 return;
933
934 etp_maybe_start_thread (EIO_POOL);
935
936 s_epipe_wait (&respipe);
339 } 937 }
340} 938}
341 939
342static int poll_cb () 940static int
941poll_cb (void)
343{ 942{
344 dSP;
345 int count = 0;
346 int do_croak = 0;
347 aio_req req;
348
349 for (;;) 943 for (;;)
350 { 944 {
351 pthread_mutex_lock (&reslock); 945 int res = eio_poll ();
352 req = ress;
353 946
354 if (req) 947 if (res > 0)
948 croak (0);
949
950 if (!max_outstanding || max_outstanding > eio_nreqs ())
951 return res;
952
953 poll_wait ();
954 }
955}
956
957ecb_cold
958static void
959reinit (void)
960{
961 create_respipe ();
962
963 if (eio_init (want_poll, done_poll) < 0)
964 croak ("IO::AIO: unable to initialise eio library");
965}
966
967/*****************************************************************************/
968
969static SV *
970get_cb (SV *cb_sv)
971{
972 SvGETMAGIC (cb_sv);
973 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
974}
975
976ecb_noinline
977static aio_req ecb_noinline
978dreq (SV *callback)
979{
980 SV *cb_cv;
981 aio_req req;
982 int req_pri = next_pri;
983 next_pri = EIO_PRI_DEFAULT;
984
985 cb_cv = get_cb (callback);
986
987 req = calloc (sizeof (*req), 1);
988 if (!req)
989 croak ("out of memory during eio_req allocation");
990
991 req->callback = SvREFCNT_inc (cb_cv);
992 req->pri = req_pri;
993
994 return req;
995}
996
997#define dREQ \
998 aio_req req = dreq (callback); \
999
1000#define REQ_SEND \
1001 PUTBACK; \
1002 req_submit (req); \
1003 SPAGAIN; \
1004 \
1005 if (GIMME_V != G_VOID) \
1006 XPUSHs (req_sv (req, aio_req_stash));
1007
1008/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1009ecb_inline
1010void
1011req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1012{
1013 if (expect_false (SvROK (path)))
1014 {
1015 SV *rv = SvRV (path);
1016 SV *wdob;
1017
1018 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
355 { 1019 {
356 ress = req->next; 1020 path = AvARRAY (rv)[1];
1021 wdob = AvARRAY (rv)[0];
357 1022
358 if (!ress) 1023 if (SvOK (wdob))
359 { 1024 {
360 /* read any signals sent by the worker threads */ 1025 *wd = SvAIO_WD (wdob);
361 char buf [32]; 1026 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
362 while (read (respipe [0], buf, 32) == 32)
363 ;
364
365 rese = 0;
366 } 1027 }
1028 else
1029 *wd = EIO_INVALID_WD;
367 } 1030 }
368 1031 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
369 pthread_mutex_unlock (&reslock);
370
371 if (!req)
372 break;
373
374 --nreqs;
375
376 if (req->type == REQ_QUIT)
377 started--;
378 else if (req->type == REQ_GROUP && req->length)
379 { 1032 {
380 req->fd = 1; /* mark request as delayed */ 1033 *wd = (aio_wd)(long)SvIVX (rv);
381 continue; 1034 *wdsv = SvREFCNT_inc_NN (rv);
1035 *ptr = ".";
1036 return; /* path set to "." */
382 } 1037 }
383 else 1038 else
384 { 1039 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
385 if (req->type == REQ_READ)
386 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
387
388 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
389 SvREADONLY_off (req->data);
390
391 if (req->statdata)
392 {
393 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
394 PL_laststatval = req->result;
395 PL_statcache = *(req->statdata);
396 }
397
398 req_invoke (req);
399
400 count++;
401 }
402
403 req_free (req);
404 } 1040 }
405 1041
406 return count; 1042 *pathsv = newSVsv (path);
1043 *ptr = SvPVbyte_nolen (*pathsv);
407} 1044}
408 1045
409static void *aio_proc(void *arg); 1046ecb_noinline
410 1047static void
411static void start_thread (void) 1048req_set_path1 (aio_req req, SV *path)
412{ 1049{
413 sigset_t fullsigset, oldsigset; 1050 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
414 pthread_t tid;
415 pthread_attr_t attr;
416
417 pthread_attr_init (&attr);
418 pthread_attr_setstacksize (&attr, STACKSIZE);
419 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
420
421 sigfillset (&fullsigset);
422 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
423
424 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
425 started++;
426
427 sigprocmask (SIG_SETMASK, &oldsigset, 0);
428} 1051}
429 1052
430static void req_send (aio_req req) 1053ecb_noinline
1054static void
1055req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
431{ 1056{
432 while (started < wanted && nreqs >= started) 1057 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
433 start_thread ();
434 1058
435 ++nreqs; 1059 switch (SvTYPE (rv))
436
437 pthread_mutex_lock (&reqlock);
438
439 req->next = 0;
440
441 if (reqe)
442 { 1060 {
443 reqe->next = req; 1061 case SVt_PVIO:
444 reqe = req; 1062 case SVt_PVLV:
1063 case SVt_PVGV:
1064 req->type = type_fh;
1065 req->sv1 = newSVsv (fh_or_path);
1066 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1067 break;
1068
1069 default:
1070 req->type = type_path;
1071 req_set_path1 (req, fh_or_path);
1072 break;
445 } 1073 }
446 else
447 reqe = reqs = req;
448
449 pthread_cond_signal (&reqwait);
450 pthread_mutex_unlock (&reqlock);
451
452 if (nreqs > max_outstanding)
453 for (;;)
454 {
455 poll_cb ();
456
457 if (nreqs <= max_outstanding)
458 break;
459
460 poll_wait ();
461 }
462}
463
464static void end_thread (void)
465{
466 aio_req req;
467 Newz (0, req, 1, aio_cb);
468 req->type = REQ_QUIT;
469
470 req_send (req);
471}
472
473static void min_parallel (int nthreads)
474{
475 if (wanted < nthreads)
476 wanted = nthreads;
477}
478
479static void max_parallel (int nthreads)
480{
481 int cur = started;
482
483 if (wanted > nthreads)
484 wanted = nthreads;
485
486 while (cur > wanted)
487 {
488 end_thread ();
489 cur--;
490 }
491
492 while (started > wanted)
493 {
494 poll_wait ();
495 poll_cb ();
496 }
497}
498
499static void create_pipe ()
500{
501 if (pipe (respipe))
502 croak ("unable to initialize result pipe");
503
504 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
505 croak ("cannot set result pipe to nonblocking mode");
506
507 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
508 croak ("cannot set result pipe to nonblocking mode");
509} 1074}
510 1075
511/*****************************************************************************/ 1076/*****************************************************************************/
512/* work around various missing functions */
513 1077
514#if !HAVE_PREADWRITE 1078static void
515# define pread aio_pread 1079ts_set (struct timespec *ts, NV value)
516# define pwrite aio_pwrite
517
518/*
519 * make our pread/pwrite safe against themselves, but not against
520 * normal read/write by using a mutex. slows down execution a lot,
521 * but that's your problem, not mine.
522 */
523static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
524
525static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
526{ 1080{
527 ssize_t res; 1081 ts->tv_sec = value;
528 off_t ooffset; 1082 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
529
530 pthread_mutex_lock (&preadwritelock);
531 ooffset = lseek (fd, 0, SEEK_CUR);
532 lseek (fd, offset, SEEK_SET);
533 res = read (fd, buf, count);
534 lseek (fd, ooffset, SEEK_SET);
535 pthread_mutex_unlock (&preadwritelock);
536
537 return res;
538} 1083}
539 1084
540static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1085static NV
1086ts_get (const struct timespec *ts)
541{ 1087{
542 ssize_t res; 1088 return ts->tv_sec + ts->tv_nsec * 1e-9;
543 off_t ooffset;
544
545 pthread_mutex_lock (&preadwritelock);
546 ooffset = lseek (fd, 0, SEEK_CUR);
547 lseek (fd, offset, SEEK_SET);
548 res = write (fd, buf, count);
549 lseek (fd, offset, SEEK_SET);
550 pthread_mutex_unlock (&preadwritelock);
551
552 return res;
553} 1089}
554#endif
555 1090
556#if !HAVE_FDATASYNC 1091/*****************************************************************************/
557# define fdatasync fsync
558#endif
559 1092
560#if !HAVE_READAHEAD 1093XS(boot_IO__AIO) ecb_cold;
561# define readahead aio_readahead
562 1094
563static ssize_t readahead (int fd, off_t offset, size_t count) 1095MODULE = IO::AIO PACKAGE = IO::AIO
564{
565 char readahead_buf[4096];
566 1096
567 while (count > 0) 1097PROTOTYPES: ENABLE
568 {
569 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
570 1098
571 pread (fd, readahead_buf, len, offset); 1099BOOT:
572 offset += len;
573 count -= len;
574 }
575
576 errno = 0;
577}
578#endif
579
580#if !HAVE_READDIR_R
581# define readdir_r aio_readdir_r
582
583static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
584
585static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
586{ 1100{
587 struct dirent *e; 1101 static const struct {
588 int errorno; 1102 const char *name;
1103 IV iv;
1104 } *civ, const_iv[] = {
1105# define const_niv(name, value) { # name, (IV) value },
1106# define const_iv(name) { # name, (IV) name },
1107# define const_eio(name) { # name, (IV) EIO_ ## name },
589 1108
590 pthread_mutex_lock (&readdirlock); 1109 /* you have to re-run ./gendef0 after adding/removing any constants here */
1110 /* the first block can be undef if missing */
1111 const_iv (ENOSYS)
1112 const_iv (EXDEV)
1113 const_iv (EBADR)
591 1114
592 e = readdir (dirp); 1115 /* for lseek */
593 errorno = errno; 1116 const_iv (SEEK_DATA)
1117 const_iv (SEEK_HOLE)
594 1118
595 if (e) 1119 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
596 { 1120 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
597 *res = ent; 1121 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
598 strcpy (ent->d_name, e->d_name); 1122 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
599 } 1123 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
600 else 1124 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
601 *res = 0;
602 1125
603 pthread_mutex_unlock (&readdirlock); 1126 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1127 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1128 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1129 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1130 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
604 1131
605 errno = errorno; 1132 /* the second block will be 0 when missing */
606 return e ? 0 : -1; 1133 const_iv (O_ACCMODE)
607}
608#endif
609 1134
610/* sendfile always needs emulation */ 1135 const_iv (O_RDONLY)
611static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) 1136 const_iv (O_WRONLY)
612{ 1137 const_iv (O_RDWR)
613 ssize_t res; 1138 const_iv (O_CREAT)
1139 const_iv (O_TRUNC)
1140 const_iv (O_EXCL)
1141 const_iv (O_APPEND)
614 1142
615 if (!count) 1143 const_iv (O_ASYNC)
616 return 0; 1144 const_iv (O_DIRECT)
1145 const_iv (O_NOATIME)
617 1146
618#if HAVE_SENDFILE 1147 const_iv (O_CLOEXEC)
619# if __linux 1148 const_iv (O_NOCTTY)
620 res = sendfile (ofd, ifd, &offset, count); 1149 const_iv (O_NOFOLLOW)
1150 const_iv (O_NONBLOCK)
1151 const_iv (O_EXEC)
1152 const_iv (O_SEARCH)
1153 const_iv (O_DIRECTORY)
1154 const_iv (O_DSYNC)
1155 const_iv (O_RSYNC)
1156 const_iv (O_SYNC)
1157 const_iv (O_PATH)
1158 const_iv (O_TMPFILE)
1159 const_iv (O_TTY_INIT)
621 1160
622# elif __freebsd 1161 const_iv (S_IFIFO)
623 /* 1162 const_iv (S_IFCHR)
624 * Of course, the freebsd sendfile is a dire hack with no thoughts 1163 const_iv (S_IFBLK)
625 * wasted on making it similar to other I/O functions. 1164 const_iv (S_IFLNK)
626 */ 1165 const_iv (S_IFREG)
1166 const_iv (S_IFDIR)
1167 const_iv (S_IFWHT)
1168 const_iv (S_IFSOCK)
1169 const_iv (S_IFMT)
1170
1171 const_iv (ST_RDONLY)
1172 const_iv (ST_NOSUID)
1173 const_iv (ST_NODEV)
1174 const_iv (ST_NOEXEC)
1175 const_iv (ST_SYNCHRONOUS)
1176 const_iv (ST_MANDLOCK)
1177 const_iv (ST_WRITE)
1178 const_iv (ST_APPEND)
1179 const_iv (ST_IMMUTABLE)
1180 const_iv (ST_NOATIME)
1181 const_iv (ST_NODIRATIME)
1182 const_iv (ST_RELATIME)
1183
1184 const_iv (PROT_NONE)
1185 const_iv (PROT_EXEC)
1186 const_iv (PROT_READ)
1187 const_iv (PROT_WRITE)
1188
1189 const_iv (MAP_PRIVATE)
1190 const_iv (MAP_SHARED)
1191 const_iv (MAP_FIXED)
1192 const_iv (MAP_ANONYMOUS)
1193
1194 /* linuxish */
1195 const_iv (MAP_LOCKED)
1196 const_iv (MAP_NORESERVE)
1197 const_iv (MAP_POPULATE)
1198 const_iv (MAP_NONBLOCK)
1199 const_iv (MAP_GROWSDOWN)
1200 const_iv (MAP_32BIT)
1201 const_iv (MAP_HUGETLB)
1202 const_iv (MAP_STACK)
1203
1204 const_iv (MREMAP_MAYMOVE)
1205 const_iv (MREMAP_FIXED)
1206
1207 const_iv (MSG_CMSG_CLOEXEC)
1208 const_iv (SOCK_CLOEXEC)
1209
1210 const_iv (F_DUPFD_CLOEXEC)
1211
1212 const_iv (F_ADD_SEALS)
1213 const_iv (F_GET_SEALS)
1214 const_iv (F_SEAL_SEAL)
1215 const_iv (F_SEAL_SHRINK)
1216 const_iv (F_SEAL_GROW)
1217 const_iv (F_SEAL_WRITE)
1218
1219 const_iv (F_OFD_GETLK)
1220 const_iv (F_OFD_SETLK)
1221 const_iv (F_OFD_GETLKW)
1222
1223 const_iv (FIFREEZE)
1224 const_iv (FITHAW)
1225 const_iv (FITRIM)
1226 const_iv (FICLONE)
1227 const_iv (FICLONERANGE)
1228 const_iv (FIDEDUPERANGE)
1229
1230 const_iv (FS_IOC_GETFLAGS)
1231 const_iv (FS_IOC_SETFLAGS)
1232 const_iv (FS_IOC_GETVERSION)
1233 const_iv (FS_IOC_SETVERSION)
1234 const_iv (FS_IOC_FIEMAP)
1235 const_iv (FS_IOC_FSGETXATTR)
1236 const_iv (FS_IOC_FSSETXATTR)
1237 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1238 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1239 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1240
1241 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1242
1243 const_iv (FS_SECRM_FL)
1244 const_iv (FS_UNRM_FL)
1245 const_iv (FS_COMPR_FL)
1246 const_iv (FS_SYNC_FL)
1247 const_iv (FS_IMMUTABLE_FL)
1248 const_iv (FS_APPEND_FL)
1249 const_iv (FS_NODUMP_FL)
1250 const_iv (FS_NOATIME_FL)
1251 const_iv (FS_DIRTY_FL)
1252 const_iv (FS_COMPRBLK_FL)
1253 const_iv (FS_NOCOMP_FL)
1254 const_iv (FS_ENCRYPT_FL)
1255 const_iv (FS_BTREE_FL)
1256 const_iv (FS_INDEX_FL)
1257 const_iv (FS_JOURNAL_DATA_FL)
1258 const_iv (FS_NOTAIL_FL)
1259 const_iv (FS_DIRSYNC_FL)
1260 const_iv (FS_TOPDIR_FL)
1261 const_iv (FS_FL_USER_MODIFIABLE)
1262
1263 const_iv (FS_XFLAG_REALTIME)
1264 const_iv (FS_XFLAG_PREALLOC)
1265 const_iv (FS_XFLAG_IMMUTABLE)
1266 const_iv (FS_XFLAG_APPEND)
1267 const_iv (FS_XFLAG_SYNC)
1268 const_iv (FS_XFLAG_NOATIME)
1269 const_iv (FS_XFLAG_NODUMP)
1270 const_iv (FS_XFLAG_RTINHERIT)
1271 const_iv (FS_XFLAG_PROJINHERIT)
1272 const_iv (FS_XFLAG_NOSYMLINKS)
1273 const_iv (FS_XFLAG_EXTSIZE)
1274 const_iv (FS_XFLAG_EXTSZINHERIT)
1275 const_iv (FS_XFLAG_NODEFRAG)
1276 const_iv (FS_XFLAG_FILESTREAM)
1277 const_iv (FS_XFLAG_DAX)
1278 const_iv (FS_XFLAG_HASATTR)
1279
1280 const_iv (FIEMAP_FLAG_SYNC)
1281 const_iv (FIEMAP_FLAG_XATTR)
1282 const_iv (FIEMAP_FLAGS_COMPAT)
1283 const_iv (FIEMAP_EXTENT_LAST)
1284 const_iv (FIEMAP_EXTENT_UNKNOWN)
1285 const_iv (FIEMAP_EXTENT_DELALLOC)
1286 const_iv (FIEMAP_EXTENT_ENCODED)
1287 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1288 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1289 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1290 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1291 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1292 const_iv (FIEMAP_EXTENT_MERGED)
1293 const_iv (FIEMAP_EXTENT_SHARED)
1294
1295 const_iv (SPLICE_F_MOVE)
1296 const_iv (SPLICE_F_NONBLOCK)
1297 const_iv (SPLICE_F_MORE)
1298 const_iv (SPLICE_F_GIFT)
1299
1300 const_iv (EFD_CLOEXEC)
1301 const_iv (EFD_NONBLOCK)
1302 const_iv (EFD_SEMAPHORE)
1303
1304 const_iv (MFD_CLOEXEC)
1305 const_iv (MFD_ALLOW_SEALING)
1306 const_iv (MFD_HUGETLB)
1307
1308 const_iv (CLOCK_REALTIME)
1309 const_iv (CLOCK_MONOTONIC)
1310 const_iv (CLOCK_BOOTTIME)
1311 const_iv (CLOCK_REALTIME_ALARM)
1312 const_iv (CLOCK_BOOTTIME_ALARM)
1313
1314 const_iv (TFD_NONBLOCK)
1315 const_iv (TFD_CLOEXEC)
1316
1317 const_iv (TFD_TIMER_ABSTIME)
1318 const_iv (TFD_TIMER_CANCEL_ON_SET)
1319
1320 const_iv (STATX_TYPE)
1321 const_iv (STATX_MODE)
1322 const_iv (STATX_NLINK)
1323 const_iv (STATX_UID)
1324 const_iv (STATX_GID)
1325 const_iv (STATX_ATIME)
1326 const_iv (STATX_MTIME)
1327 const_iv (STATX_CTIME)
1328 const_iv (STATX_INO)
1329 const_iv (STATX_SIZE)
1330 const_iv (STATX_BLOCKS)
1331 const_iv (STATX_BASIC_STATS)
1332 const_iv (STATX_ALL)
1333 const_iv (STATX_BTIME)
1334 const_iv (STATX_ATTR_COMPRESSED)
1335 const_iv (STATX_ATTR_IMMUTABLE)
1336 const_iv (STATX_ATTR_APPEND)
1337 const_iv (STATX_ATTR_NODUMP)
1338 const_iv (STATX_ATTR_ENCRYPTED)
1339 const_iv (STATX_ATTR_AUTOMOUNT)
1340
1341 const_iv (AT_FDCWD)
1342 const_iv (AT_SYMLINK_NOFOLLOW)
1343 const_iv (AT_EACCESS)
1344 const_iv (AT_REMOVEDIR)
1345 const_iv (AT_SYMLINK_FOLLOW)
1346 const_iv (AT_NO_AUTOMOUNT)
1347 const_iv (AT_EMPTY_PATH)
1348 const_iv (AT_STATX_SYNC_TYPE)
1349 const_iv (AT_STATX_AS_STAT)
1350 const_iv (AT_STATX_FORCE_SYNC)
1351 const_iv (AT_STATX_DONT_SYNC)
1352 const_iv (AT_RECURSIVE)
1353
1354 const_iv (OPEN_TREE_CLONE)
1355
1356 const_iv (FSOPEN_CLOEXEC)
1357
1358 const_iv (FSPICK_CLOEXEC)
1359 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1360 const_iv (FSPICK_NO_AUTOMOUNT)
1361 const_iv (FSPICK_EMPTY_PATH)
1362
1363 const_iv (MOVE_MOUNT_F_SYMLINKS)
1364 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1365 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1366 const_iv (MOVE_MOUNT_T_SYMLINKS)
1367 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1368 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1369
1370 /* waitid */
1371 const_iv (P_PID)
1372 const_iv (P_PIDFD)
1373 const_iv (P_PGID)
1374 const_iv (P_ALL)
1375
1376 /* these are libeio constants, and are independent of gendef0 */
1377 const_eio (SEEK_SET)
1378 const_eio (SEEK_CUR)
1379 const_eio (SEEK_END)
1380
1381 const_eio (MCL_FUTURE)
1382 const_eio (MCL_CURRENT)
1383 const_eio (MCL_ONFAULT)
1384
1385 const_eio (MS_ASYNC)
1386 const_eio (MS_INVALIDATE)
1387 const_eio (MS_SYNC)
1388
1389 const_eio (MT_MODIFY)
1390
1391 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1392 const_eio (SYNC_FILE_RANGE_WRITE)
1393 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1394
1395 const_eio (FALLOC_FL_KEEP_SIZE)
1396 const_eio (FALLOC_FL_PUNCH_HOLE)
1397 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1398 const_eio (FALLOC_FL_ZERO_RANGE)
1399 const_eio (FALLOC_FL_INSERT_RANGE)
1400 const_eio (FALLOC_FL_UNSHARE_RANGE)
1401
1402 const_eio (RENAME_NOREPLACE)
1403 const_eio (RENAME_EXCHANGE)
1404 const_eio (RENAME_WHITEOUT)
1405
1406 const_eio (READDIR_DENTS)
1407 const_eio (READDIR_DIRS_FIRST)
1408 const_eio (READDIR_STAT_ORDER)
1409 const_eio (READDIR_FOUND_UNKNOWN)
1410
1411 const_eio (DT_UNKNOWN)
1412 const_eio (DT_FIFO)
1413 const_eio (DT_CHR)
1414 const_eio (DT_DIR)
1415 const_eio (DT_BLK)
1416 const_eio (DT_REG)
1417 const_eio (DT_LNK)
1418 const_eio (DT_SOCK)
1419 const_eio (DT_WHT)
1420 };
1421
1422 aio_stash = gv_stashpv ("IO::AIO" , 1);
1423 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1424 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1425 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1426
1427 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1428 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1429
1430 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1431
1432 /* allocate dummy pipe fd for aio_close */
627 { 1433 {
628 off_t sbytes; 1434 int pipefd [2];
629 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
630 1435
631 if (res < 0 && sbytes) 1436 if (
632 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ 1437#ifdef _WIN32
633 res = sbytes; 1438 _pipe (pipefd, 1, _O_BINARY) < 0
1439#else
1440 pipe (pipefd) < 0
1441 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1442#endif
1443 || close (pipefd [1]) < 0
1444 )
1445 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1446
1447 close_fd = pipefd [0];
634 } 1448 }
635 1449
636# elif __hpux 1450 reinit ();
637 res = sendfile (ofd, ifd, offset, count, 0, 0); 1451}
638 1452
639# elif __solaris 1453void
1454reinit ()
1455 PROTOTYPE:
1456
1457void
1458max_poll_reqs (unsigned int nreqs)
1459 PROTOTYPE: $
1460 CODE:
1461 eio_set_max_poll_reqs (nreqs);
1462
1463void
1464max_poll_time (double nseconds)
1465 PROTOTYPE: $
1466 CODE:
1467 eio_set_max_poll_time (nseconds);
1468
1469void
1470min_parallel (unsigned int nthreads)
1471 PROTOTYPE: $
1472 CODE:
1473 eio_set_min_parallel (nthreads);
1474
1475void
1476max_parallel (unsigned int nthreads)
1477 PROTOTYPE: $
1478 CODE:
1479 eio_set_max_parallel (nthreads);
1480
1481void
1482max_idle (unsigned int nthreads)
1483 PROTOTYPE: $
1484 CODE:
1485 eio_set_max_idle (nthreads);
1486
1487void
1488idle_timeout (unsigned int seconds)
1489 PROTOTYPE: $
1490 CODE:
1491 eio_set_idle_timeout (seconds);
1492
1493void
1494max_outstanding (unsigned int maxreqs)
1495 PROTOTYPE: $
1496 CODE:
1497 max_outstanding = maxreqs;
1498
1499void
1500aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1501 PPCODE:
1502{
1503 dREQ;
1504
1505 req->type = EIO_WD_OPEN;
1506 req_set_path1 (req, pathname);
1507
1508 REQ_SEND;
1509}
1510
1511void
1512aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1513 PPCODE:
1514{
1515 dREQ;
1516
1517 req->type = EIO_OPEN;
1518 req_set_path1 (req, pathname);
1519 req->int1 = flags;
1520 req->int2 = mode;
1521
1522 REQ_SEND;
1523}
1524
1525void
1526aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1527 ALIAS:
1528 aio_fsync = EIO_FSYNC
1529 aio_fdatasync = EIO_FDATASYNC
1530 aio_syncfs = EIO_SYNCFS
1531 PPCODE:
1532{
1533 int fd = s_fileno_croak (fh, 0);
1534 dREQ;
1535
1536 req->type = ix;
1537 req->sv1 = newSVsv (fh);
1538 req->int1 = fd;
1539
1540 REQ_SEND;
1541}
1542
1543void
1544aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1545 PPCODE:
1546{
1547 int fd = s_fileno_croak (fh, 0);
1548 dREQ;
1549
1550 req->type = EIO_SYNC_FILE_RANGE;
1551 req->sv1 = newSVsv (fh);
1552 req->int1 = fd;
1553 req->offs = offset;
1554 req->size = nbytes;
1555 req->int2 = flags;
1556
1557 REQ_SEND;
1558}
1559
1560void
1561aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1562 PPCODE:
1563{
1564 int fd = s_fileno_croak (fh, 0);
1565 dREQ;
1566
1567 req->type = EIO_FALLOCATE;
1568 req->sv1 = newSVsv (fh);
1569 req->int1 = fd;
1570 req->int2 = mode;
1571 req->offs = offset;
1572 req->size = len;
1573
1574 REQ_SEND;
1575}
1576
1577void
1578aio_close (SV *fh, SV *callback = &PL_sv_undef)
1579 PPCODE:
1580{
1581 int fd = s_fileno_croak (fh, 0);
1582 dREQ;
1583#if 0
1584 /* partially duplicate logic in s_fileno */
1585 SvGETMAGIC (fh);
1586
1587 if (SvROK (fh))
640 { 1588 {
641 struct sendfilevec vec; 1589 fh = SvRV (fh);
642 size_t sbytes; 1590 SvGETMAGIC (fh);
643
644 vec.sfv_fd = ifd;
645 vec.sfv_flag = 0;
646 vec.sfv_off = offset;
647 vec.sfv_len = count;
648
649 res = sendfilev (ofd, &vec, 1, &sbytes);
650
651 if (res < 0 && sbytes)
652 res = sbytes;
653 } 1591 }
654 1592
655# endif 1593 if (SvTYPE (fh) == SVt_PVGV)
656#else
657 res = -1;
658 errno = ENOSYS;
659#endif
660
661 if (res < 0
662 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
663#if __solaris
664 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
665#endif
666 )
667 )
668 {
669 /* emulate sendfile. this is a major pain in the ass */
670 char buf[4096];
671 res = 0;
672
673 while (count)
674 {
675 ssize_t cnt;
676
677 cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
678
679 if (cnt <= 0)
680 {
681 if (cnt && !res) res = -1;
682 break;
683 }
684
685 cnt = write (ofd, buf, cnt);
686
687 if (cnt <= 0)
688 {
689 if (cnt && !res) res = -1;
690 break;
691 }
692
693 offset += cnt;
694 res += cnt;
695 count -= cnt;
696 }
697 }
698
699 return res;
700}
701
702/* read a full directory */
703static int scandir_ (const char *path, void **namesp)
704{
705 DIR *dirp = opendir (path);
706 union
707 {
708 struct dirent d;
709 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
710 } u;
711 struct dirent *entp;
712 char *name, *names;
713 int memlen = 4096;
714 int memofs = 0;
715 int res = 0;
716 int errorno;
717
718 if (!dirp)
719 return -1;
720
721 names = malloc (memlen);
722
723 for (;;)
724 {
725 errno = 0, readdir_r (dirp, &u.d, &entp);
726
727 if (!entp)
728 break;
729
730 name = entp->d_name;
731
732 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
733 {
734 int len = strlen (name) + 1;
735
736 res++;
737
738 while (memofs + len > memlen)
739 {
740 memlen *= 2;
741 names = realloc (names, memlen);
742 if (!names)
743 break;
744 }
745
746 memcpy (names + memofs, name, len);
747 memofs += len;
748 }
749 }
750
751 errorno = errno;
752 closedir (dirp);
753
754 if (errorno)
755 {
756 free (names);
757 errno = errorno;
758 res = -1;
759 }
760
761 *namesp = (void *)names;
762 return res;
763}
764
765/*****************************************************************************/
766
767static void *aio_proc (void *thr_arg)
768{
769 aio_req req;
770 int type;
771
772 do
773 {
774 pthread_mutex_lock (&reqlock);
775
776 for (;;)
777 {
778 req = reqs;
779
780 if (reqs)
781 {
782 reqs = reqs->next;
783 if (!reqs) reqe = 0;
784 }
785
786 if (req)
787 break;
788
789 pthread_cond_wait (&reqwait, &reqlock);
790 }
791
792 pthread_mutex_unlock (&reqlock);
793
794 errno = 0; /* strictly unnecessary */
795
796 if (!(req->flags & FLAG_CANCELLED))
797 switch (type = req->type) /* remember type for QUIT check */
798 { 1594 {
799 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 1595 /* perl filehandle */
800 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 1596 PerlIOUnix_refcnt_inc (fd);
1597 do_close ((GV *)fh, 1);
801 1598
802 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 1599 req->type = EIO_CLOSE;
803 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; 1600 req->int1 = fd;
804 1601 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
805 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
806 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
807 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
808
809 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
810 case REQ_CLOSE: req->result = close (req->fd); break;
811 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
812 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
813 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
814 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
815 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
816
817 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
818 case REQ_FSYNC: req->result = fsync (req->fd); break;
819 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
820
821 case REQ_SLEEP:
822 {
823 struct timeval tv;
824
825 tv.tv_sec = req->fd;
826 tv.tv_usec = req->fd2;
827
828 req->result = select (0, 0, 0, 0, &tv);
829 }
830
831 case REQ_GROUP:
832 case REQ_NOP:
833 case REQ_QUIT:
834 break;
835
836 default:
837 req->result = ENOSYS;
838 break;
839 } 1602 }
840
841 req->errorno = errno;
842
843 pthread_mutex_lock (&reslock);
844
845 req->next = 0;
846
847 if (rese)
848 {
849 rese->next = req;
850 rese = req;
851 }
852 else 1603 else
1604#endif
853 { 1605 {
854 rese = ress = req; 1606 /* fd number */
855 1607 req->type = EIO_DUP2;
856 /* write a dummy byte to the pipe so fh becomes ready */ 1608 req->int1 = close_fd;
857 write (respipe [1], &respipe, 1); 1609 req->sv2 = newSVsv (fh);
1610 req->int2 = fd;
858 } 1611 }
859 1612
860 pthread_mutex_unlock (&reslock); 1613 REQ_SEND;
861 }
862 while (type != REQ_QUIT);
863
864 return 0;
865} 1614}
866 1615
867/*****************************************************************************/
868
869static void atfork_prepare (void)
870{
871 pthread_mutex_lock (&reqlock);
872 pthread_mutex_lock (&reslock);
873#if !HAVE_PREADWRITE
874 pthread_mutex_lock (&preadwritelock);
875#endif
876#if !HAVE_READDIR_R
877 pthread_mutex_lock (&readdirlock);
878#endif
879}
880
881static void atfork_parent (void)
882{
883#if !HAVE_READDIR_R
884 pthread_mutex_unlock (&readdirlock);
885#endif
886#if !HAVE_PREADWRITE
887 pthread_mutex_unlock (&preadwritelock);
888#endif
889 pthread_mutex_unlock (&reslock);
890 pthread_mutex_unlock (&reqlock);
891}
892
893static void atfork_child (void)
894{
895 aio_req prv;
896
897 started = 0;
898
899 while (reqs)
900 {
901 prv = reqs;
902 reqs = prv->next;
903 req_free (prv);
904 }
905
906 reqs = reqe = 0;
907
908 while (ress)
909 {
910 prv = ress;
911 ress = prv->next;
912 req_free (prv);
913 }
914
915 ress = rese = 0;
916
917 close (respipe [0]);
918 close (respipe [1]);
919 create_pipe ();
920
921 atfork_parent ();
922}
923
924#define dREQ \
925 aio_req req; \
926 \
927 if (SvOK (callback) && !SvROK (callback)) \
928 croak ("callback must be undef or of reference type"); \
929 \
930 Newz (0, req, 1, aio_cb); \
931 if (!req) \
932 croak ("out of memory during aio_req allocation"); \
933 \
934 req->callback = newSVsv (callback)
935
936#define REQ_SEND \
937 req_send (req); \
938 \
939 if (GIMME_V != G_VOID) \
940 XPUSHs (req_sv (req, AIO_REQ_KLASS));
941
942MODULE = IO::AIO PACKAGE = IO::AIO
943
944PROTOTYPES: ENABLE
945
946BOOT:
947{
948 HV *stash = gv_stashpv ("IO::AIO", 1);
949 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
950 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
951 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
952
953 create_pipe ();
954 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
955}
956
957void 1616void
958min_parallel (nthreads) 1617aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
959 int nthreads
960 PROTOTYPE: $
961
962void
963max_parallel (nthreads)
964 int nthreads
965 PROTOTYPE: $
966
967int
968max_outstanding (nreqs)
969 int nreqs
970 PROTOTYPE: $
971 CODE: 1618 PPCODE:
972 RETVAL = max_outstanding;
973 max_outstanding = nreqs;
974
975void
976aio_open (pathname,flags,mode,callback=&PL_sv_undef)
977 SV * pathname
978 int flags
979 int mode
980 SV * callback
981 PROTOTYPE: $$$;$
982 PPCODE:
983{ 1619{
1620 int fd = s_fileno_croak (fh, 0);
984 dREQ; 1621 dREQ;
985 1622
986 req->type = REQ_OPEN; 1623 req->type = EIO_SEEK;
987 req->data = newSVsv (pathname); 1624 req->sv1 = newSVsv (fh);
988 req->dataptr = SvPVbyte_nolen (req->data); 1625 req->int1 = fd;
989 req->fd = flags; 1626 req->offs = SvVAL64 (offset);
990 req->mode = mode; 1627 req->int2 = whence;
991 1628
992 REQ_SEND; 1629 REQ_SEND;
993} 1630}
994 1631
995void 1632void
996aio_close (fh,callback=&PL_sv_undef) 1633aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
997 SV * fh
998 SV * callback
999 PROTOTYPE: $;$
1000 ALIAS: 1634 ALIAS:
1001 aio_close = REQ_CLOSE
1002 aio_fsync = REQ_FSYNC
1003 aio_fdatasync = REQ_FDATASYNC
1004 PPCODE:
1005{
1006 dREQ;
1007
1008 req->type = ix;
1009 req->fh = newSVsv (fh);
1010 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1011
1012 REQ_SEND (req);
1013}
1014
1015void
1016aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1017 SV * fh
1018 UV offset
1019 UV length
1020 SV * data
1021 UV dataoffset
1022 SV * callback
1023 ALIAS:
1024 aio_read = REQ_READ 1635 aio_read = EIO_READ
1025 aio_write = REQ_WRITE 1636 aio_write = EIO_WRITE
1026 PROTOTYPE: $$$$$;$
1027 PPCODE: 1637 PPCODE:
1028{ 1638{
1029 aio_req req;
1030 STRLEN svlen; 1639 STRLEN svlen;
1640 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1031 char *svptr = SvPVbyte (data, svlen); 1641 char *svptr = SvPVbyte (data, svlen);
1032 1642 UV len = SvUV (length);
1033 SvUPGRADE (data, SVt_PV);
1034 SvPOK_on (data);
1035 1643
1036 if (dataoffset < 0) 1644 if (dataoffset < 0)
1037 dataoffset += svlen; 1645 dataoffset += svlen;
1038 1646
1039 if (dataoffset < 0 || dataoffset > svlen) 1647 if (dataoffset < 0 || dataoffset > svlen)
1040 croak ("data offset outside of string"); 1648 croak ("dataoffset outside of data scalar");
1041 1649
1042 if (ix == REQ_WRITE) 1650 if (ix == EIO_WRITE)
1043 { 1651 {
1044 /* write: check length and adjust. */ 1652 /* write: check length and adjust. */
1045 if (length < 0 || length + dataoffset > svlen) 1653 if (!SvOK (length) || len + dataoffset > svlen)
1046 length = svlen - dataoffset; 1654 len = svlen - dataoffset;
1047 } 1655 }
1048 else 1656 else
1049 { 1657 {
1050 /* read: grow scalar as necessary */ 1658 /* read: check type and grow scalar as necessary */
1659 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1051 svptr = SvGROW (data, length + dataoffset); 1660 svptr = sv_grow (data, len + dataoffset + 1);
1661 else if (SvCUR (data) < len + dataoffset)
1662 croak ("length + dataoffset outside of scalar, and cannot grow");
1052 } 1663 }
1053
1054 if (length < 0)
1055 croak ("length must not be negative");
1056 1664
1057 { 1665 {
1058 dREQ; 1666 dREQ;
1059 1667
1060 req->type = ix; 1668 req->type = ix;
1061 req->fh = newSVsv (fh); 1669 req->sv1 = newSVsv (fh);
1062 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1670 req->int1 = fd;
1063 : IoOFP (sv_2io (fh))); 1671 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1064 req->offset = offset; 1672 req->size = len;
1065 req->length = length;
1066 req->data = SvREFCNT_inc (data); 1673 req->sv2 = SvREFCNT_inc (data);
1067 req->dataptr = (char *)svptr + dataoffset; 1674 req->ptr2 = (char *)svptr + dataoffset;
1675 req->stroffset = dataoffset;
1068 1676
1069 if (!SvREADONLY (data)) 1677 if (!SvREADONLY (data))
1070 { 1678 {
1071 SvREADONLY_on (data); 1679 SvREADONLY_on (data);
1072 req->data2ptr = (void *)data; 1680 req->flags |= FLAG_SV2_RO_OFF;
1073 } 1681 }
1074 1682
1075 REQ_SEND; 1683 REQ_SEND;
1076 } 1684 }
1077} 1685}
1078 1686
1079void 1687void
1080aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1688aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1081 SV * out_fh 1689 ALIAS:
1082 SV * in_fh 1690 aio_ioctl = EIO_IOCTL
1083 UV in_offset 1691 aio_fcntl = EIO_FCNTL
1084 UV length
1085 SV * callback
1086 PROTOTYPE: $$$$;$
1087 PPCODE: 1692 PPCODE:
1088{ 1693{
1089 dREQ; 1694 int fd = s_fileno_croak (fh, 0);
1695 char *svptr;
1090 1696
1091 req->type = REQ_SENDFILE; 1697 if (SvPOK (arg) || !SvNIOK (arg))
1092 req->fh = newSVsv (out_fh);
1093 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1094 req->fh2 = newSVsv (in_fh);
1095 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1096 req->offset = in_offset;
1097 req->length = length;
1098
1099 REQ_SEND;
1100}
1101
1102void
1103aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1104 SV * fh
1105 UV offset
1106 IV length
1107 SV * callback
1108 PROTOTYPE: $$$;$
1109 PPCODE:
1110{
1111 dREQ;
1112
1113 req->type = REQ_READAHEAD;
1114 req->fh = newSVsv (fh);
1115 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1116 req->offset = offset;
1117 req->length = length;
1118
1119 REQ_SEND;
1120}
1121
1122void
1123aio_stat (fh_or_path,callback=&PL_sv_undef)
1124 SV * fh_or_path
1125 SV * callback
1126 ALIAS:
1127 aio_stat = REQ_STAT
1128 aio_lstat = REQ_LSTAT
1129 PPCODE:
1130{
1131 dREQ;
1132
1133 New (0, req->statdata, 1, Stat_t);
1134 if (!req->statdata)
1135 { 1698 {
1136 req_free (req); 1699 STRLEN svlen;
1137 croak ("out of memory during aio_req->statdata allocation"); 1700 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1138 } 1701#ifdef IOCPARM_LEN
1702 STRLEN need = IOCPARM_LEN (request);
1703#else
1704 STRLEN need = 256;
1705#endif
1139 1706
1140 if (SvPOK (fh_or_path)) 1707 if (svlen < need)
1141 { 1708 svptr = SvGROW (arg, need);
1142 req->type = ix;
1143 req->data = newSVsv (fh_or_path);
1144 req->dataptr = SvPVbyte_nolen (req->data);
1145 } 1709 }
1146 else 1710 else
1711 svptr = (char *)SvIV (arg);
1712
1147 { 1713 {
1714 dREQ;
1715
1148 req->type = REQ_FSTAT; 1716 req->type = ix;
1149 req->fh = newSVsv (fh_or_path); 1717 req->sv1 = newSVsv (fh);
1150 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1718 req->int1 = fd;
1719 req->int2 = (long)request;
1720 req->sv2 = SvREFCNT_inc (arg);
1721 req->ptr2 = svptr;
1722
1723 REQ_SEND;
1151 } 1724 }
1725}
1726
1727void
1728aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1729 ALIAS:
1730 aio_readlink = EIO_READLINK
1731 aio_realpath = EIO_REALPATH
1732 PPCODE:
1733{
1734 dREQ;
1735
1736 req->type = ix;
1737 req_set_path1 (req, pathname);
1152 1738
1153 REQ_SEND; 1739 REQ_SEND;
1154} 1740}
1155 1741
1156void 1742void
1157aio_unlink (pathname,callback=&PL_sv_undef) 1743aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1158 SV * pathname 1744 PPCODE:
1159 SV * callback 1745{
1746 int ifd = s_fileno_croak (in_fh , 0);
1747 int ofd = s_fileno_croak (out_fh, 1);
1748 dREQ;
1749
1750 req->type = EIO_SENDFILE;
1751 req->sv1 = newSVsv (out_fh);
1752 req->int1 = ofd;
1753 req->sv2 = newSVsv (in_fh);
1754 req->int2 = ifd;
1755 req->offs = in_offset;
1756 req->size = length;
1757
1758 REQ_SEND;
1759}
1760
1761void
1762aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1763 PPCODE:
1764{
1765 int fd = s_fileno_croak (fh, 0);
1766 dREQ;
1767
1768 req->type = EIO_READAHEAD;
1769 req->sv1 = newSVsv (fh);
1770 req->int1 = fd;
1771 req->offs = offset;
1772 req->size = length;
1773
1774 REQ_SEND;
1775}
1776
1777void
1778aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1160 ALIAS: 1779 ALIAS:
1780 aio_stat = EIO_STAT
1781 aio_lstat = EIO_LSTAT
1782 aio_statvfs = EIO_STATVFS
1783 PPCODE:
1784{
1785 dREQ;
1786
1787 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1788
1789 REQ_SEND;
1790}
1791
1792void
1793st_xtime ()
1794 ALIAS:
1795 st_atime = 0x01
1796 st_mtime = 0x02
1797 st_ctime = 0x04
1798 st_btime = 0x08
1799 st_xtime = 0x0f
1800 PPCODE:
1801 EXTEND (SP, 4);
1802 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1803 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1804 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1805 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1806
1807void
1808st_xtimensec ()
1809 ALIAS:
1810 st_atimensec = 0x01
1811 st_mtimensec = 0x02
1812 st_ctimensec = 0x04
1813 st_btimensec = 0x08
1814 st_xtimensec = 0x0f
1815 st_btimesec = 0x10
1816 st_gen = 0x20
1817 PPCODE:
1818 EXTEND (SP, 4);
1819 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1820 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1821 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1822 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1823 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1824 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1825
1826UV
1827major (UV dev)
1828 ALIAS:
1829 minor = 1
1830 CODE:
1831 RETVAL = ix ? minor (dev) : major (dev);
1832 OUTPUT:
1833 RETVAL
1834
1835UV
1836makedev (UV maj, UV min)
1837 CODE:
1838 RETVAL = makedev (maj, min);
1839 OUTPUT:
1840 RETVAL
1841
1842void
1843aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1844 PPCODE:
1845{
1846 dREQ;
1847
1848 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1849 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1850 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1851
1852 REQ_SEND;
1853}
1854
1855void
1856aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1857 PPCODE:
1858{
1859 dREQ;
1860
1861 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1862 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1863
1864 REQ_SEND;
1865}
1866
1867void
1868aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1869 PPCODE:
1870{
1871 dREQ;
1872
1873 req->int2 = mode;
1874 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1875
1876 REQ_SEND;
1877}
1878
1879void
1880aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1881 PPCODE:
1882{
1883 dREQ;
1884
1885 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1886 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1887 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1888
1889 REQ_SEND;
1890}
1891
1892void
1893aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1894 PPCODE:
1895{
1896 dREQ;
1897
1898 req->type = EIO_READDIR;
1899 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1900
1901 if (flags & EIO_READDIR_DENTS)
1902 req->int1 |= EIO_READDIR_CUSTOM2;
1903
1904 req_set_path1 (req, pathname);
1905
1906 REQ_SEND;
1907}
1908
1909void
1910aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1911 PPCODE:
1912{
1913 dREQ;
1914
1915 req->type = EIO_MKDIR;
1916 req->int2 = mode;
1917 req_set_path1 (req, pathname);
1918
1919 REQ_SEND;
1920}
1921
1922void
1923aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1924 ALIAS:
1161 aio_unlink = REQ_UNLINK 1925 aio_unlink = EIO_UNLINK
1162 aio_rmdir = REQ_RMDIR 1926 aio_rmdir = EIO_RMDIR
1163 aio_readdir = REQ_READDIR 1927 aio_readdir = EIO_READDIR
1164 PPCODE: 1928 PPCODE:
1165{ 1929{
1166 dREQ; 1930 dREQ;
1167 1931
1168 req->type = ix; 1932 req->type = ix;
1169 req->data = newSVsv (pathname); 1933 req_set_path1 (req, pathname);
1170 req->dataptr = SvPVbyte_nolen (req->data); 1934
1171
1172 REQ_SEND; 1935 REQ_SEND;
1173} 1936}
1174 1937
1175void 1938void
1176aio_link (oldpath,newpath,callback=&PL_sv_undef) 1939aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1177 SV * oldpath
1178 SV * newpath
1179 SV * callback
1180 ALIAS: 1940 ALIAS:
1181 aio_link = REQ_LINK 1941 aio_link = EIO_LINK
1182 aio_symlink = REQ_SYMLINK 1942 aio_symlink = EIO_SYMLINK
1183 aio_rename = REQ_RENAME 1943 aio_rename = EIO_RENAME
1184 PPCODE: 1944 PPCODE:
1185{ 1945{
1946 eio_wd wd2 = 0;
1186 dREQ; 1947 dREQ;
1187 1948
1188 req->type = ix; 1949 req->type = ix;
1189 req->fh = newSVsv (oldpath); 1950 req_set_path1 (req, oldpath);
1190 req->data2ptr = SvPVbyte_nolen (req->fh); 1951 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1191 req->data = newSVsv (newpath); 1952 req->int3 = (long)wd2;
1192 req->dataptr = SvPVbyte_nolen (req->data);
1193 1953
1194 REQ_SEND; 1954 REQ_SEND;
1195} 1955}
1196 1956
1197void 1957void
1198aio_sleep (delay,callback=&PL_sv_undef) 1958aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1199 double delay
1200 SV * callback
1201 PPCODE: 1959 PPCODE:
1202{ 1960{
1961 eio_wd wd2 = 0;
1203 dREQ; 1962 dREQ;
1204 1963
1205 req->type = REQ_SLEEP; 1964 req->type = EIO_RENAME;
1206 req->fd = delay < 0. ? 0 : delay; 1965 req_set_path1 (req, oldpath);
1207 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1966 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1208 1967 req->int2 = flags;
1968 req->int3 = (long)wd2;
1969
1209 REQ_SEND; 1970 REQ_SEND;
1210} 1971}
1211 1972
1212void 1973void
1213aio_group (callback=&PL_sv_undef) 1974aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1214 SV * callback 1975 PPCODE:
1215 PROTOTYPE: ;$ 1976{
1977 dREQ;
1978
1979 req->type = EIO_MKNOD;
1980 req->int2 = (mode_t)mode;
1981 req->offs = dev;
1982 req_set_path1 (req, pathname);
1983
1984 REQ_SEND;
1985}
1986
1987void
1988aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1989 ALIAS:
1990 aio_mtouch = EIO_MTOUCH
1991 aio_msync = EIO_MSYNC
1216 PPCODE: 1992 PPCODE:
1217{ 1993{
1994 STRLEN svlen;
1995 char *svptr = SvPVbyte (data, svlen);
1996 UV len = SvUV (length);
1997
1998 if (flags < 0)
1999 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
2000
2001 if (offset < 0)
2002 offset += svlen;
2003
2004 if (offset < 0 || offset > svlen)
2005 croak ("offset outside of scalar");
2006
2007 if (!SvOK (length) || len + offset > svlen)
2008 len = svlen - offset;
2009
2010 {
2011 dREQ;
2012
2013 req->type = ix;
2014 req->sv2 = SvREFCNT_inc (data);
2015 req->ptr2 = (char *)svptr + offset;
2016 req->size = len;
2017 req->int1 = flags;
2018
2019 REQ_SEND;
2020 }
2021}
2022
2023void
2024aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2025 PPCODE:
2026{
2027 STRLEN svlen;
2028 char *svptr = SvPVbyte (data, svlen);
2029 UV len = SvUV (length);
2030
2031 if (offset < 0)
2032 offset += svlen;
2033
2034 if (offset < 0 || offset > svlen)
2035 croak ("offset outside of scalar");
2036
2037 if (!SvOK (length) || len + offset > svlen)
2038 len = svlen - offset;
2039
2040 {
2041 dREQ;
2042
2043 req->type = EIO_MLOCK;
2044 req->sv2 = SvREFCNT_inc (data);
2045 req->ptr2 = (char *)svptr + offset;
2046 req->size = len;
2047
2048 REQ_SEND;
2049 }
2050}
2051
2052void
2053aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2054 PPCODE:
2055{
2056 dREQ;
2057
2058 req->type = EIO_MLOCKALL;
2059 req->int1 = flags;
2060
2061 REQ_SEND;
2062}
2063
2064void
2065aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2066 PPCODE:
2067{
2068 int fd = s_fileno_croak (fh, 0);
1218 dREQ; 2069 dREQ;
2070
1219 req->type = REQ_GROUP; 2071 req->type = EIO_CUSTOM;
1220 req_send (req); 2072 req->sv1 = newSVsv (fh);
1221 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2073 req->int1 = fd;
1222}
1223 2074
2075 req->feed = fiemap;
2076#if HAVE_FIEMAP
2077 /* keep our fingers crossed that the next two types are 64 bit */
2078 req->offs = start;
2079 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2080 req->int2 = flags;
2081 req->int3 = SvOK (count) ? SvIV (count) : -1;
2082#endif
2083
2084 REQ_SEND;
2085}
2086
1224void 2087void
1225aio_nop (callback=&PL_sv_undef) 2088aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1226 SV * callback 2089 PPCODE:
2090{
2091 char *svptr = 0;
2092
2093 sv_clear_foreign (data);
2094
2095 if (length) /* known length, directly read into scalar */
2096 {
2097 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2098 svptr = sv_grow (data, length + 1);
2099 else if (SvCUR (data) < length)
2100 croak ("length outside of scalar, and cannot grow");
2101 else
2102 svptr = SvPVbyte_nolen (data);
2103 }
2104
2105 {
2106 dREQ;
2107
2108 req->type = EIO_SLURP;
2109 req_set_path1 (req, pathname);
2110 req->offs = offset;
2111 req->size = length;
2112 req->sv2 = SvREFCNT_inc (data);
2113 req->ptr2 = svptr;
2114
2115 if (!SvREADONLY (data))
2116 {
2117 SvREADONLY_on (data);
2118 req->flags |= FLAG_SV2_RO_OFF;
2119 }
2120
2121 REQ_SEND;
2122 }
2123}
2124
2125void
2126aio_busy (double delay, SV *callback = &PL_sv_undef)
1227 PPCODE: 2127 PPCODE:
1228{ 2128{
1229 dREQ; 2129 dREQ;
1230 2130
1231 req->type = REQ_NOP; 2131 req->type = EIO_BUSY;
2132 req->nv1 = delay < 0. ? 0. : delay;
1232 2133
1233 REQ_SEND; 2134 REQ_SEND;
1234} 2135}
1235 2136
1236void 2137void
2138aio_group (SV *callback = &PL_sv_undef)
2139 PPCODE:
2140{
2141 dREQ;
2142
2143 req->type = EIO_GROUP;
2144
2145 PUTBACK;
2146 req_submit (req);
2147 SPAGAIN;
2148
2149 XPUSHs (req_sv (req, aio_grp_stash));
2150}
2151
2152void
2153aio_nop (SV *callback = &PL_sv_undef)
2154 ALIAS:
2155 aio_nop = EIO_NOP
2156 aio_sync = EIO_SYNC
2157 PPCODE:
2158{
2159 dREQ;
2160
2161 req->type = ix;
2162
2163 REQ_SEND;
2164}
2165
2166int
2167aioreq_pri (int pri = NO_INIT)
2168 CODE:
2169 RETVAL = next_pri;
2170 if (items > 0)
2171 {
2172 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
2173 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
2174 next_pri = pri;
2175 }
2176 OUTPUT:
2177 RETVAL
2178
2179void
2180aioreq_nice (int nice = 0)
2181 CODE:
2182 nice = next_pri - nice;
2183 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
2184 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
2185 next_pri = nice;
2186
2187void
1237flush () 2188flush ()
1238 PROTOTYPE:
1239 CODE: 2189 CODE:
1240 while (nreqs) 2190 while (eio_nreqs ())
1241 { 2191 {
1242 poll_wait (); 2192 poll_wait ();
1243 poll_cb (); 2193 poll_cb ();
1244 } 2194 }
1245 2195
1246void 2196int
1247poll() 2197poll ()
1248 PROTOTYPE:
1249 CODE: 2198 CODE:
1250 if (nreqs)
1251 {
1252 poll_wait (); 2199 poll_wait ();
1253 poll_cb (); 2200 RETVAL = poll_cb ();
1254 }
1255
1256int
1257poll_fileno()
1258 PROTOTYPE:
1259 CODE:
1260 RETVAL = respipe [0];
1261 OUTPUT: 2201 OUTPUT:
1262 RETVAL 2202 RETVAL
1263 2203
1264int 2204int
2205poll_fileno ()
2206 CODE:
2207 RETVAL = s_epipe_fd (&respipe);
2208 OUTPUT:
2209 RETVAL
2210
2211int
1265poll_cb(...) 2212poll_cb (...)
1266 PROTOTYPE: 2213 PROTOTYPE:
1267 CODE: 2214 CODE:
1268 RETVAL = poll_cb (); 2215 RETVAL = poll_cb ();
1269 OUTPUT: 2216 OUTPUT:
1270 RETVAL 2217 RETVAL
1271 2218
1272void 2219void
1273poll_wait() 2220poll_wait ()
2221 CODE:
2222 poll_wait ();
2223
2224int
2225nreqs ()
2226 CODE:
2227 RETVAL = eio_nreqs ();
2228 OUTPUT:
2229 RETVAL
2230
2231int
2232nready ()
2233 CODE:
2234 RETVAL = eio_nready ();
2235 OUTPUT:
2236 RETVAL
2237
2238int
2239npending ()
2240 CODE:
2241 RETVAL = eio_npending ();
2242 OUTPUT:
2243 RETVAL
2244
2245int
2246nthreads ()
2247 CODE:
2248 RETVAL = eio_nthreads ();
2249 OUTPUT:
2250 RETVAL
2251
2252int
2253fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2254 CODE:
2255 RETVAL = posix_fadvise (fh, offset, length, advice);
2256 OUTPUT:
2257 RETVAL
2258
2259IV
2260sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2261 CODE:
2262 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2263 OUTPUT:
2264 RETVAL
2265
2266void
2267mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2268 PPCODE:
2269 sv_clear_foreign (scalar);
2270{
2271 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2272 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2273 if (addr == (void *)-1)
2274 XSRETURN_NO;
2275
2276 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2277
2278 if (!(prot & PROT_WRITE))
2279 SvREADONLY_on (scalar);
2280
2281 XSRETURN_YES;
2282}
2283
2284void
2285munmap (SV *scalar)
2286 CODE:
2287 sv_clear_foreign (scalar);
2288
2289SV *
2290mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2291 CODE:
2292{
2293 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2294 void *new;
2295
2296 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2297 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2298
2299 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2300
2301 RETVAL = &PL_sv_no;
2302
2303 if (new != (void *)-1)
2304 {
2305 RETVAL = new == (void *)mg->mg_ptr
2306 ? newSVpvn ("0 but true", 10)
2307 : &PL_sv_yes;
2308
2309 mg->mg_ptr = (char *)new;
2310 mg->mg_obj = (SV *)new_length;
2311
2312 SvPVX (scalar) = mg->mg_ptr;
2313 SvCUR_set (scalar, new_length);
2314 }
2315}
2316 OUTPUT:
2317 RETVAL
2318
2319int
2320madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2321 ALIAS:
2322 mprotect = 1
2323 CODE:
2324{
2325 STRLEN svlen;
2326 void *addr = SvPVbyte (scalar, svlen);
2327 STRLEN len = SvUV (length);
2328
2329 if (offset < 0)
2330 offset += svlen;
2331
2332 if (offset < 0 || offset > svlen)
2333 croak ("offset outside of scalar");
2334
2335 if (!SvOK (length) || len + offset > svlen)
2336 len = svlen - offset;
2337
2338 addr = (void *)(((intptr_t)addr) + offset);
2339 eio_page_align (&addr, &len);
2340
2341 switch (ix)
2342 {
2343 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2344 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2345 }
2346}
2347 OUTPUT:
2348 RETVAL
2349
2350int
2351munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2352 CODE:
2353{
2354 STRLEN svlen;
2355 void *addr = SvPVbyte (scalar, svlen);
2356 size_t len = SvUV (length);
2357
2358 if (offset < 0)
2359 offset += svlen;
2360
2361 if (offset < 0 || offset > svlen)
2362 croak ("offset outside of scalar");
2363
2364 if (!SvOK (length) || len + offset > svlen)
2365 len = svlen - offset;
2366
2367 addr = (void *)(((intptr_t)addr) + offset);
2368 eio_page_align (&addr, &len);
2369#if _POSIX_MEMLOCK_RANGE
2370 RETVAL = munlock (addr, len);
2371#else
2372 RETVAL = EIO_ENOSYS ();
2373#endif
2374}
2375 OUTPUT:
2376 RETVAL
2377
2378int
2379mlockall (int flags)
2380 PROTOTYPE: $;
2381 CODE:
2382 RETVAL = eio_mlockall_sync (flags);
2383 OUTPUT:
2384 RETVAL
2385
2386int
2387munlockall ()
2388 CODE:
2389#if _POSIX_MEMLOCK
2390 munlockall ();
2391#else
2392 RETVAL = EIO_ENOSYS ();
2393#endif
2394 OUTPUT:
2395 RETVAL
2396
2397int
2398statx (SV8 *pathname, int flags, UV mask)
2399 CODE:
2400{
2401 /* undocumented, and might go away, and anyway, should use eio_statx */
2402 SV *wdsv = 0;
2403 SV *pathsv = 0;
2404 eio_wd wd = EIO_CWD;
2405 void *ptr;
2406 int res;
2407
2408 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2409 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2410
2411 SvREFCNT_dec (pathsv);
2412 SvREFCNT_dec (wdsv);
2413}
2414 OUTPUT:
2415 RETVAL
2416
2417U32
2418stx_mode ()
1274 PROTOTYPE: 2419 PROTOTYPE:
1275 CODE: 2420 CODE:
2421#if HAVE_STATX
2422 RETVAL = stx.stx_mode;
2423#else
2424 XSRETURN_UNDEF;
2425#endif
2426 OUTPUT:
2427 RETVAL
2428
2429#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2430#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2431#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2432#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2433#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2434#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2435#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2436#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2437#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2438#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2439#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2440#define STATX_OFFSET_size statx_offsetof (stx_size)
2441#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2442#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2443#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2444#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2445#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2446#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2447
2448U32
2449stx_mask ()
2450 PROTOTYPE:
2451 ALIAS:
2452 stx_mask = STATX_OFFSET_mask
2453 stx_blksize = STATX_OFFSET_blksize
2454 stx_nlink = STATX_OFFSET_nlink
2455 stx_uid = STATX_OFFSET_uid
2456 stx_gid = STATX_OFFSET_gid
2457 stx_rdev_major = STATX_OFFSET_rdev_major
2458 stx_rdev_minor = STATX_OFFSET_rdev_minor
2459 stx_dev_major = STATX_OFFSET_dev_major
2460 stx_dev_minor = STATX_OFFSET_dev_minor
2461 CODE:
2462#if HAVE_STATX
2463 RETVAL = *(__u32 *)((char *)&stx + ix);
2464#else
2465 XSRETURN_UNDEF;
2466#endif
2467 OUTPUT:
2468 RETVAL
2469
2470VAL64
2471stx_attributes ()
2472 PROTOTYPE:
2473 ALIAS:
2474 stx_attributes = STATX_OFFSET_attributes
2475 stx_ino = STATX_OFFSET_ino
2476 stx_size = STATX_OFFSET_size
2477 stx_blocks = STATX_OFFSET_blocks
2478 stx_attributes_mask = STATX_OFFSET_attributes_mask
2479 CODE:
2480#if HAVE_STATX
2481 RETVAL = *(__u64 *)((char *)&stx + ix);
2482#else
2483 XSRETURN_UNDEF;
2484#endif
2485 OUTPUT:
2486 RETVAL
2487
2488NV
2489stx_atime ()
2490 PROTOTYPE:
2491 ALIAS:
2492 stx_atime = STATX_OFFSET_atime
2493 stx_btime = STATX_OFFSET_btime
2494 stx_ctime = STATX_OFFSET_ctime
2495 stx_mtime = STATX_OFFSET_mtime
2496 CODE:
2497#if HAVE_STATX
2498 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2499 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2500#else
2501 XSRETURN_UNDEF;
2502#endif
2503 OUTPUT:
2504 RETVAL
2505
2506VAL64
2507stx_atimesec ()
2508 PROTOTYPE:
2509 ALIAS:
2510 stx_atimesec = STATX_OFFSET_atime
2511 stx_btimesec = STATX_OFFSET_btime
2512 stx_ctimesec = STATX_OFFSET_ctime
2513 stx_mtimesec = STATX_OFFSET_mtime
2514 CODE:
2515#if HAVE_STATX
2516 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2517 RETVAL = ts->tv_sec;
2518#else
2519 XSRETURN_UNDEF;
2520#endif
2521 OUTPUT:
2522 RETVAL
2523
2524U32
2525stx_atimensec ()
2526 PROTOTYPE:
2527 ALIAS:
2528 stx_atimensec = STATX_OFFSET_atime
2529 stx_btimensec = STATX_OFFSET_btime
2530 stx_ctimensec = STATX_OFFSET_ctime
2531 stx_mtimensec = STATX_OFFSET_mtime
2532 CODE:
2533#if HAVE_STATX
2534 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2535 RETVAL = ts->tv_nsec;
2536#else
2537 RETVAL = 0;
2538#endif
2539 OUTPUT:
2540 RETVAL
2541
2542void
2543accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2544 PPCODE:
2545{
2546 SV *retval;
2547#if HAVE_ACCEPT4
2548 socklen_t salen_ = salen ? salen + 1 : 0;
2549
1276 if (nreqs) 2550 if (salen)
1277 poll_wait (); 2551 {
2552 sv_upgrade (sockaddr, SVt_PV);
2553 sv_grow (sockaddr, salen_);
2554 }
2555
2556 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2557
2558 retval = newmortalFH (res, O_RDWR);
2559
2560 if (res >= 0 && salen > 0)
2561 {
2562 if (salen_ > salen + 1)
2563 salen_ = salen + 1;
2564
2565 SvPOK_only (sockaddr);
2566 SvCUR_set (sockaddr, salen_);
2567 }
2568#else
2569 errno = ENOSYS;
2570 retval = &PL_sv_undef;
2571#endif
2572 XPUSHs (retval);
2573}
2574
2575ssize_t
2576splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2577 CODE:
2578{
2579#if HAVE_LINUX_SPLICE
2580 loff_t off_in_, off_out_;
2581 RETVAL = splice (
2582 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2583 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2584 length, flags
2585 );
2586#else
2587 RETVAL = EIO_ENOSYS ();
2588#endif
2589}
2590 OUTPUT:
2591 RETVAL
2592
2593ssize_t
2594tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2595 CODE:
2596#if HAVE_LINUX_SPLICE
2597 RETVAL = tee (rfh, wfh, length, flags);
2598#else
2599 RETVAL = EIO_ENOSYS ();
2600#endif
2601 OUTPUT:
2602 RETVAL
1278 2603
1279int 2604int
1280nreqs() 2605pipesize (aio_rfd rfh, int new_size = -1)
2606 PROTOTYPE: $;$
2607 CODE:
2608#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2609 if (new_size >= 0)
2610 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2611 else
2612 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2613#else
2614 errno = ENOSYS;
2615 RETVAL = -1;
2616#endif
2617 OUTPUT:
2618 RETVAL
2619
2620void
2621pipe2 (int flags = 0)
1281 PROTOTYPE: 2622 PROTOTYPE: ;$
2623 PPCODE:
2624{
2625 int fd[2];
2626 int res;
2627
2628 if (flags)
2629#if HAVE_PIPE2
2630 res = pipe2 (fd, flags);
2631#else
2632 res = (errno = ENOSYS, -1);
2633#endif
2634 else
2635 res = pipe (fd);
2636
2637 if (!res)
2638 {
2639 EXTEND (SP, 2);
2640 PUSHs (newmortalFH (fd[0], O_RDONLY));
2641 PUSHs (newmortalFH (fd[1], O_WRONLY));
2642 }
2643}
2644
2645void
2646pidfd_open (int pid, unsigned int flags = 0)
2647 PPCODE:
2648{
2649 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2650 int fd = syscall (SYS_pidfd_open, pid, flags);
2651 XPUSHs (newmortalFH (fd, O_RDWR));
2652}
2653
2654int
2655pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
2656 PPCODE:
2657{
2658 int res;
2659 siginfo_t si = { 0 };
2660
2661 if (SvOK (siginfo))
2662 {
2663 HV *hv;
2664 SV **svp;
2665
2666 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2667 croak ("siginfo argument must be a hashref code, pid, uid and value_int or value_ptr members, caught");
2668
2669 hv = (HV *)SvRV (siginfo);
2670
2671 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2672 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2673 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2674 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2675 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2676 }
2677
2678 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2679 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2680
2681 XPUSHs (sv_2mortal (newSViv (res)));
2682}
2683
2684void
2685pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2686 PPCODE:
2687{
2688 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2689 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2690 XPUSHs (newmortalFH (fd, O_RDWR));
2691}
2692
2693void
2694eventfd (unsigned int initval = 0, int flags = 0)
2695 PPCODE:
2696{
2697 int fd;
2698#if HAVE_EVENTFD
2699 fd = eventfd (initval, flags);
2700#else
2701 fd = (errno = ENOSYS, -1);
2702#endif
2703
2704 XPUSHs (newmortalFH (fd, O_RDWR));
2705}
2706
2707void
2708timerfd_create (int clockid, int flags = 0)
2709 PPCODE:
2710{
2711 int fd;
2712#if HAVE_TIMERFD
2713 fd = timerfd_create (clockid, flags);
2714#else
2715 fd = (errno = ENOSYS, -1);
2716#endif
2717
2718 XPUSHs (newmortalFH (fd, O_RDWR));
2719}
2720
2721void
2722timerfd_settime (SV *fh, int flags, NV interval, NV value)
2723 PPCODE:
2724{
2725 int fd = s_fileno_croak (fh, 0);
2726#if HAVE_TIMERFD
2727 int res;
2728 struct itimerspec its, ots;
2729
2730 ts_set (&its.it_interval, interval);
2731 ts_set (&its.it_value , value);
2732 res = timerfd_settime (fd, flags, &its, &ots);
2733
2734 if (!res)
2735 {
2736 EXTEND (SP, 2);
2737 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2738 PUSHs (newSVnv (ts_get (&ots.it_value)));
2739 }
2740#else
2741 errno = ENOSYS;
2742#endif
2743}
2744
2745void
2746timerfd_gettime (SV *fh)
2747 PPCODE:
2748{
2749 int fd = s_fileno_croak (fh, 0);
2750#if HAVE_TIMERFD
2751 int res;
2752 struct itimerspec ots;
2753 res = timerfd_gettime (fd, &ots);
2754
2755 if (!res)
2756 {
2757 EXTEND (SP, 2);
2758 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2759 PUSHs (newSVnv (ts_get (&ots.it_value)));
2760 }
2761#else
2762 errno = ENOSYS;
2763#endif
2764}
2765
2766void
2767memfd_create (SV8 *pathname, int flags = 0)
2768 PPCODE:
2769{
2770 int fd;
2771#if HAVE_MEMFD_CREATE
2772 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2773#else
2774 fd = (errno = ENOSYS, -1);
2775#endif
2776
2777 XPUSHs (newmortalFH (fd, O_RDWR));
2778}
2779
2780UV
2781get_fdlimit ()
1282 CODE: 2782 CODE:
1283 RETVAL = nreqs; 2783#if HAVE_RLIMITS
2784 struct rlimit rl;
2785 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2786 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2787#endif
2788 XSRETURN_UNDEF;
1284 OUTPUT: 2789 OUTPUT:
1285 RETVAL 2790 RETVAL
2791
2792void
2793min_fdlimit (UV limit = 0x7fffffffU)
2794 CODE:
2795{
2796#if HAVE_RLIMITS
2797 struct rlimit rl;
2798 rlim_t orig_rlim_max;
2799 UV bit;
2800
2801 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2802 goto fail;
2803
2804 if (rl.rlim_cur == RLIM_INFINITY)
2805 XSRETURN_YES;
2806
2807 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2808
2809 if (rl.rlim_cur < limit)
2810 {
2811 rl.rlim_cur = limit;
2812
2813 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2814 rl.rlim_max = rl.rlim_cur;
2815 }
2816
2817 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2818 XSRETURN_YES;
2819
2820 if (errno == EPERM)
2821 {
2822 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2823 /* our limit overflows a system-wide limit */
2824 /* try an adaptive algorithm, but do not lower the hardlimit */
2825 rl.rlim_max = 0;
2826 for (bit = 0x40000000U; bit; bit >>= 1)
2827 {
2828 rl.rlim_max |= bit;
2829 rl.rlim_cur = rl.rlim_max;
2830
2831 /* never decrease the hard limit */
2832 if (rl.rlim_max < orig_rlim_max)
2833 break;
2834
2835 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2836 rl.rlim_max &= ~bit; /* too high, remove bit again */
2837 }
2838
2839 /* now, raise the soft limit to the max permitted */
2840 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2841 {
2842 rl.rlim_cur = rl.rlim_max;
2843 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2844 errno = EPERM;
2845 }
2846 }
2847#endif
2848 fail:
2849 XSRETURN_UNDEF;
2850}
2851
2852void _on_next_submit (SV *cb)
2853 CODE:
2854 SvREFCNT_dec (on_next_submit);
2855 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1286 2856
1287PROTOTYPES: DISABLE 2857PROTOTYPES: DISABLE
1288 2858
2859MODULE = IO::AIO PACKAGE = IO::AIO::WD
2860
2861BOOT:
2862{
2863 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2864 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2865}
2866
2867void
2868DESTROY (SV *self)
2869 CODE:
2870{
2871 aio_wd wd = SvAIO_WD (self);
2872#if HAVE_AT
2873 {
2874 SV *callback = &PL_sv_undef;
2875 dREQ; /* clobbers next_pri :/ */
2876 next_pri = req->pri; /* restore next_pri */
2877 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2878 req->type = EIO_WD_CLOSE;
2879 req->wd = wd;
2880 REQ_SEND;
2881 }
2882#else
2883 eio_wd_close_sync (wd);
2884#endif
2885}
2886
1289MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2887MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1290 2888
1291void 2889void
1292cancel (aio_req_ornot req) 2890cancel (aio_req_ornot req)
1293 PROTOTYPE:
1294 CODE: 2891 CODE:
1295 req_cancel (req); 2892 eio_cancel (req);
1296 2893
1297void 2894void
1298cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2895cb (aio_req_ornot req, SV *callback = NO_INIT)
1299 CODE: 2896 PPCODE:
2897{
2898 if (GIMME_V != G_VOID)
2899 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2900
2901 if (items > 1)
2902 {
2903 SV *cb_cv = get_cb (callback);
2904
1300 SvREFCNT_dec (req->callback); 2905 SvREFCNT_dec (req->callback);
1301 req->callback = newSVsv (callback); 2906 req->callback = SvREFCNT_inc (cb_cv);
2907 }
2908}
1302 2909
1303MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2910MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1304 2911
1305void 2912void
1306add (aio_req grp, ...) 2913add (aio_req grp, ...)
1307 PPCODE: 2914 PPCODE:
1308{ 2915{
1309 int i; 2916 int i;
1310 aio_req req;
1311 2917
1312 if (grp->fd == 2) 2918 if (grp->int1 == 2)
1313 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2919 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1314 2920
1315 for (i = 1; i < items; ++i ) 2921 for (i = 1; i < items; ++i )
1316 { 2922 {
2923 aio_req req;
2924
1317 if (GIMME_V != G_VOID) 2925 if (GIMME_V != G_VOID)
1318 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2926 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1319 2927
1320 req = SvAIO_REQ (ST (i)); 2928 req = SvAIO_REQ (ST (i));
1321 2929
1322 if (req) 2930 if (req)
1323 { 2931 eio_grp_add (grp, req);
1324 ++grp->length;
1325 req->grp = grp;
1326
1327 req->grp_prev = 0;
1328 req->grp_next = grp->grp_first;
1329
1330 if (grp->grp_first)
1331 grp->grp_first->grp_prev = req;
1332
1333 grp->grp_first = req;
1334 }
1335 } 2932 }
1336} 2933}
2934
2935void
2936cancel_subs (aio_req_ornot req)
2937 CODE:
2938 req_cancel_subs (req);
1337 2939
1338void 2940void
1339result (aio_req grp, ...) 2941result (aio_req grp, ...)
1340 CODE: 2942 CODE:
1341{ 2943{
1342 int i; 2944 int i;
2945 AV *av;
2946
2947 grp->errorno = errno;
2948
1343 AV *av = newAV (); 2949 av = newAV ();
2950 av_extend (av, items - 1);
1344 2951
1345 for (i = 1; i < items; ++i ) 2952 for (i = 1; i < items; ++i )
1346 av_push (av, newSVsv (ST (i))); 2953 av_push (av, newSVsv (ST (i)));
1347 2954
1348 SvREFCNT_dec (grp->data); 2955 SvREFCNT_dec (grp->sv1);
1349 grp->data = (SV *)av; 2956 grp->sv1 = (SV *)av;
1350} 2957}
1351 2958
1352void 2959void
2960errno (aio_req grp, int errorno = errno)
2961 CODE:
2962 grp->errorno = errorno;
2963
2964void
1353feed_limit (aio_req grp, int limit) 2965limit (aio_req grp, int limit)
1354 CODE: 2966 CODE:
1355 grp->fd2 = limit; 2967 eio_grp_limit (grp, limit);
1356 aio_grp_feed (grp);
1357 2968
1358void 2969void
1359feed (aio_req grp, SV *callback=&PL_sv_undef) 2970feed (aio_req grp, SV *callback = &PL_sv_undef)
1360 CODE: 2971 CODE:
1361{ 2972{
1362 SvREFCNT_dec (grp->fh2); 2973 SvREFCNT_dec (grp->sv2);
1363 grp->fh2 = newSVsv (callback); 2974 grp->sv2 = newSVsv (callback);
2975 grp->feed = aio_grp_feed;
1364 2976
1365 if (grp->fd2 <= 0) 2977 if (grp->int2 <= 0)
1366 grp->fd2 = 2; 2978 grp->int2 = 2;
1367 2979
1368 aio_grp_feed (grp); 2980 eio_grp_limit (grp, grp->int2);
1369} 2981}
1370 2982

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