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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.62 by root, Mon Oct 23 22:45:18 2006 UTC vs.
Revision 1.289 by root, Mon Jan 4 22:19:06 2021 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/* solaris perl seems to declare a wrong syscall function that clashes with system includes */
233#ifdef __sun
234# undef HAVE_SYSCALL
235#endif
236
237#if HAVE_SYSCALL
238#include <sys/syscall.h>
46#else 239#else
47# define STACKSIZE 8192 240# define syscall(nr,...) (errno = ENOSYS, -1)
241#endif
242
243/*****************************************************************************/
244
245#if !_POSIX_MAPPED_FILES
246# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
247# define munmap(addr,length) EIO_ENOSYS ()
248#endif
249
250#if !_POSIX_MEMORY_PROTECTION
251# define mprotect(addr,len,prot) EIO_ENOSYS ()
252#endif
253
254#if !MREMAP_MAYMOVE
255# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
256#endif
257
258#define FOREIGN_MAGIC PERL_MAGIC_ext
259
260static int ecb_cold
261mmap_free (pTHX_ SV *sv, MAGIC *mg)
262{
263 int old_errno = errno;
264 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
265 errno = old_errno;
266
267 mg->mg_obj = 0; /* just in case */
268
269 SvREADONLY_off (sv);
270
271 if (SvPVX (sv) != mg->mg_ptr)
272 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
273
274 SvCUR_set (sv, 0);
275 SvPVX (sv) = 0;
276 SvOK_off (sv);
277
278 return 0;
279}
280
281static MGVTBL mmap_vtbl = {
282 0, 0, 0, 0, mmap_free
283};
284
285static int ecb_cold
286sysfree_free (pTHX_ SV *sv, MAGIC *mg)
287{
288 free (mg->mg_ptr);
289 mg->mg_obj = 0; /* just in case */
290
291 SvREADONLY_off (sv);
292
293 if (SvPVX (sv) != mg->mg_ptr)
294 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
295
296 SvCUR_set (sv, 0);
297 SvPVX (sv) = 0;
298 SvOK_off (sv);
299
300 return 0;
301}
302
303static MGVTBL sysfree_vtbl = {
304 0, 0, 0, 0, sysfree_free
305};
306
307/*****************************************************************************/
308
309/* helper: set scalar to foreign ptr with custom free */
310ecb_noinline
311static void
312sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
313{
314 sv_force_normal (sv);
315
316 /* we store the length in mg_obj, as namlen is I32 :/ */
317 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
318 ->mg_obj = (SV *)length;
319
320 SvUPGRADE (sv, SVt_PV); /* nop... */
321
322 if (SvLEN (sv))
323 Safefree (SvPVX (sv));
324
325 SvPVX (sv) = (char *)addr;
326 SvCUR_set (sv, length);
327 SvLEN_set (sv, 0);
328 SvPOK_only (sv);
329}
330
331static void
332sv_clear_foreign (SV *sv)
333{
334 /* todo: iterate over magic and only free ours, but of course */
335 /* the perl5porters will call that (correct) behaviour buggy */
336 sv_unmagic (sv, FOREIGN_MAGIC);
337}
338
339/*****************************************************************************/
340
341/* defines all sorts of constants to 0 unless they are already defined */
342/* also provides const_iv_ and const_niv_ macros for them */
343#include "def0.h"
344
345/*****************************************************************************/
346
347static void
348fiemap (eio_req *req)
349{
350 req->result = -1;
351
352#if HAVE_FIEMAP
353 /* assume some c99 */
354 struct fiemap *fiemap = 0;
355 size_t end_offset;
356 int count = req->int3;
357
358 req->flags |= EIO_FLAG_PTR1_FREE;
359
360 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
361 /* increase in fixed steps */
362 if (count < 0)
363 count = 8;
364
365 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
366 errno = ENOMEM;
367 if (!fiemap)
368 return;
369
370 req->ptr1 = fiemap;
371
372 fiemap->fm_start = req->offs;
373 fiemap->fm_length = req->size;
374 fiemap->fm_flags = req->int2;
375 fiemap->fm_extent_count = count;
376
377 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
378 return;
379
380 if (req->int3 >= 0 /* not autosizing */
381 || !fiemap->fm_mapped_extents /* no more extents */
382 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
383 goto done;
384
385 /* else we have to loop -
386 * it would be tempting (actually I tried that first) to just query the
387 * number of extents needed, but linux often feels like not returning all
388 * extents, without telling us it left any out. this complicates
389 * this quite a bit.
390 */
391
392 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
393
394 for (;;)
395 {
396 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
397 char scratch[3072];
398 struct fiemap *incmap = (struct fiemap *)scratch;
399
400 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
401 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
402 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
403 incmap->fm_flags = fiemap->fm_flags;
404 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
405
406 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
407 return;
408
409 if (!incmap->fm_mapped_extents)
410 goto done;
411
412 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
413 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
414 errno = ENOMEM;
415 if (!fiemap)
416 return;
417
418 req->ptr1 = fiemap;
419
420 for (count = 0; count < incmap->fm_mapped_extents; ++count)
421 {
422 struct fiemap_extent *e = incmap->fm_extents + count;
423
424 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
425
426 if (e->fe_logical >= end_offset)
427 goto done;
428
429 if (e->fe_flags & FIEMAP_EXTENT_LAST)
430 goto done;
431
432 }
433 }
434
435done:
436 req->result = 0;
437
438#else
439 errno = ENOSYS;
440#endif
441}
442
443/*****************************************************************************/
444
445static int close_fd; /* dummy fd to close fds via dup2 */
446
447#if HAVE_STATX
448static struct statx stx;
449#define statx_offsetof(member) offsetof (struct statx, member)
450#define eio__statx statx
451#else
452#define statx_offsetof(member) 0
453#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
48#endif 454#endif
49 455
50enum { 456enum {
51 REQ_QUIT, 457 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}; 458};
63 459
64#define AIO_REQ_KLASS "IO::AIO::REQ"
65#define AIO_GRP_KLASS "IO::AIO::GRP"
66
67typedef struct aio_cb
68{
69 struct aio_cb *volatile next;
70
71 SV *data, *callback;
72 SV *fh, *fh2;
73 void *dataptr, *data2ptr;
74 Stat_t *statdata;
75 off_t offset;
76 size_t length;
77 ssize_t result;
78
79 STRLEN dataoffset;
80 int type;
81 int fd, fd2;
82 int errorno;
83 mode_t mode; /* open */
84
85 unsigned char flags;
86 unsigned char pri;
87
88 SV *self; /* the perl counterpart of this request, if any */
89 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
90} aio_cb;
91
92enum {
93 FLAG_CANCELLED = 0x01,
94};
95
96typedef aio_cb *aio_req; 460typedef eio_req *aio_req;
97typedef aio_cb *aio_req_ornot; 461typedef eio_req *aio_req_ornot;
462typedef eio_wd aio_wd;
98 463
99enum { 464static SV *on_next_submit;
100 PRI_MIN = -4, 465static int next_pri = EIO_PRI_DEFAULT;
101 PRI_MAX = 4,
102
103 DEFAULT_PRI = 0,
104 PRI_BIAS = -PRI_MIN,
105};
106
107static int next_pri = DEFAULT_PRI + PRI_BIAS;
108
109static int started, wanted;
110static volatile int nreqs;
111static int max_outstanding = 1<<30; 466static int max_outstanding;
112static int respipe [2];
113 467
114static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER; 468static s_epipe respipe;
115static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
116static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
117 469
118static volatile aio_req reqs, reqe; /* queue start, queue end */ 470static void req_destroy (aio_req req);
119static volatile aio_req ress, rese; /* queue start, queue end */
120
121static void req_invoke (aio_req req); 471static void req_cancel (aio_req req);
122static void req_free (aio_req req); 472
473static void
474want_poll (void)
475{
476 /* write a dummy byte to the pipe so fh becomes ready */
477 s_epipe_signal (&respipe);
478}
479
480static void
481done_poll (void)
482{
483 /* read any signals sent by the worker threads */
484 s_epipe_drain (&respipe);
485}
123 486
124/* must be called at most once */ 487/* must be called at most once */
125static SV *req_sv (aio_req req, const char *klass) 488ecb_noinline
489static SV *
490req_sv (aio_req req, HV *stash)
126{ 491{
127 if (!req->self) 492 if (!req->self)
128 { 493 {
129 req->self = (SV *)newHV (); 494 req->self = (SV *)newHV ();
130 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 495 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
131 } 496 }
132 497
133 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 498 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
134} 499}
135 500
136static aio_req SvAIO_REQ (SV *sv) 501static SV *
502newSVaio_wd (aio_wd wd)
503{
504 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
505}
506
507ecb_noinline
508static aio_req
509SvAIO_REQ (SV *sv)
137{ 510{
138 MAGIC *mg; 511 MAGIC *mg;
139 512
140 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 513 if (!SvROK (sv)
514 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
515 || (SvSTASH (SvRV (sv)) != aio_grp_stash
516 && SvSTASH (SvRV (sv)) != aio_req_stash
517 && !sv_derived_from (sv, "IO::AIO::REQ")))
141 croak ("object of class " AIO_REQ_KLASS " expected"); 518 croak ("object of class IO::AIO::REQ expected");
142 519
143 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 520 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
144 521
145 return mg ? (aio_req)mg->mg_ptr : 0; 522 return mg ? (aio_req)mg->mg_ptr : 0;
146} 523}
147 524
525static aio_wd
526SvAIO_WD (SV *sv)
527{
528 if (!SvROK (sv)
529 || SvTYPE (SvRV (sv)) != SVt_PVMG
530 || SvSTASH (SvRV (sv)) != aio_wd_stash)
531 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
532
533 return (aio_wd)(long)SvIVX (SvRV (sv));
534}
535
536static SV *
537newmortalFH (int fd, int flags)
538{
539 if (fd < 0)
540 return &PL_sv_undef;
541
542 GV *gv = (GV *)sv_newmortal ();
543 char sym[64];
544 int symlen;
545
546 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
547 gv_init (gv, aio_stash, sym, symlen, 0);
548
549 symlen = snprintf (
550 sym,
551 sizeof (sym),
552 "%s&=%d",
553 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
554 fd
555 );
556
557 return do_open (gv, sym, symlen, 0, 0, 0, 0)
558 ? (SV *)gv : &PL_sv_undef;
559}
560
561static void
148static void aio_grp_feed (aio_req grp) 562aio_grp_feed (aio_req grp)
149{ 563{
150 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 564 if (grp->sv2 && SvOK (grp->sv2))
151 { 565 {
152 int old_len = grp->length; 566 dSP;
153 567
154 if (grp->fh2 && SvOK (grp->fh2)) 568 ENTER;
569 SAVETMPS;
570 PUSHMARK (SP);
571 XPUSHs (req_sv (grp, aio_grp_stash));
572 PUTBACK;
573 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
574 SPAGAIN;
575 FREETMPS;
576 LEAVE;
577 }
578}
579
580ecb_noinline
581static void
582req_submit (eio_req *req)
583{
584 eio_submit (req);
585
586 if (expect_false (on_next_submit))
587 {
588 dSP;
589 SV *cb = sv_2mortal (on_next_submit);
590
591 on_next_submit = 0;
592
593 PUSHMARK (SP);
594 PUTBACK;
595 call_sv (cb, G_DISCARD | G_EVAL);
596 }
597}
598
599static int
600req_invoke (eio_req *req)
601{
602 if (req->flags & FLAG_SV2_RO_OFF)
603 SvREADONLY_off (req->sv2);
604
605 if (!EIO_CANCELLED (req) && req->callback)
606 {
607 dSP;
608 static SV *sv_result_cache; /* caches the result integer SV */
609 SV *sv_result;
610
611 ENTER;
612 SAVETMPS;
613 PUSHMARK (SP);
614 EXTEND (SP, 1);
615
616 /* do not recreate the result IV from scratch each time */
617 if (expect_true (sv_result_cache))
155 { 618 {
156 dSP; 619 sv_result = sv_result_cache; sv_result_cache = 0;
157 620 SvIV_set (sv_result, req->result);
158 ENTER; 621 SvIOK_only (sv_result);
159 SAVETMPS;
160 PUSHMARK (SP);
161 XPUSHs (req_sv (grp, AIO_GRP_KLASS));
162 PUTBACK;
163 call_sv (grp->fh2, G_VOID | G_EVAL);
164 SPAGAIN;
165 FREETMPS;
166 LEAVE;
167 } 622 }
168 623 else
169 /* stop if no progress has been made */
170 if (old_len == grp->length)
171 { 624 {
172 SvREFCNT_dec (grp->fh2); 625 sv_result = newSViv (req->result);
173 grp->fh2 = 0; 626 SvREADONLY_on (sv_result);
174 break;
175 } 627 }
628
629 switch (req->type)
630 {
631 case EIO_WD_OPEN:
632 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
633 break;
634
635 case EIO_READDIR:
636 {
637 SV *rv = &PL_sv_undef;
638
639 if (req->result >= 0)
640 {
641 int i;
642 char *names = (char *)req->ptr2;
643 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
644 AV *av = newAV ();
645
646 av_extend (av, req->result - 1);
647
648 for (i = 0; i < req->result; ++i)
649 {
650 if (req->int1 & EIO_READDIR_DENTS)
651 {
652 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
653
654 if (req->int1 & EIO_READDIR_CUSTOM2)
655 {
656 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
657 AV *avent = newAV ();
658
659 av_extend (avent, 2);
660
661 if (!sv_type [ent->type])
662 {
663 sv_type [ent->type] = newSViv (ent->type);
664 SvREADONLY_on (sv_type [ent->type]);
665 }
666
667 av_store (avent, 0, namesv);
668 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
669 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
670
671 av_store (av, i, newRV_noinc ((SV *)avent));
672 }
673 else
674 av_store (av, i, namesv);
675
676 ++ent;
677 }
678 else
679 {
680 SV *name = newSVpv (names, 0);
681 av_store (av, i, name);
682 names += SvCUR (name) + 1;
683 }
684 }
685
686 rv = sv_2mortal (newRV_noinc ((SV *)av));
687 }
688
689 PUSHs (rv);
690
691 if (req->int1 & EIO_READDIR_CUSTOM1)
692 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
693 }
694 break;
695
696 case EIO_OPEN:
697 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
698 break;
699
700 case EIO_STATVFS:
701 case EIO_FSTATVFS:
702 {
703 SV *rv = &PL_sv_undef;
704
705#ifndef _WIN32
706 if (req->result >= 0)
707 {
708 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
709 HV *hv = newHV ();
710 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
711 * chooses to make it a struct.
712 */
713 unsigned long fsid = 0;
714 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
715
716 rv = sv_2mortal (newRV_noinc ((SV *)hv));
717
718 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
719 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
720 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
721 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
722 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
723 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
724 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
725 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
726 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
727 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
728 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
729 }
730#endif
731
732 PUSHs (rv);
733 }
734
735 break;
736
737 case EIO_GROUP:
738 req->int1 = 2; /* mark group as finished */
739
740 if (req->sv1)
741 {
742 int i;
743 AV *av = (AV *)req->sv1;
744
745 EXTEND (SP, AvFILL (av) + 1);
746 for (i = 0; i <= AvFILL (av); ++i)
747 PUSHs (*av_fetch (av, i, 0));
748 }
749 break;
750
751 case EIO_NOP:
752 case EIO_BUSY:
753 break;
754
755 case EIO_READLINK:
756 case EIO_REALPATH:
757 if (req->result > 0)
758 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
759 break;
760
761 case EIO_STAT:
762 case EIO_LSTAT:
763 case EIO_FSTAT:
764 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
765
766 if (!(PL_laststatval = req->result))
767 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
768 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
769
770 PUSHs (sv_result);
771 break;
772
773 case EIO_SEEK:
774 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
775 break;
776
777 case EIO_READ:
778 {
779 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
780 *SvEND (req->sv2) = 0;
781 SvPOK_only (req->sv2);
782 SvSETMAGIC (req->sv2);
783 PUSHs (sv_result);
784 }
785 break;
786
787 case EIO_SLURP:
788 {
789 if (req->result >= 0)
790 {
791 /* if length was originally not known, we steal the malloc'ed memory */
792 if (req->flags & EIO_FLAG_PTR2_FREE)
793 {
794 req->flags &= ~EIO_FLAG_PTR2_FREE;
795 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
796 }
797 else
798 {
799 SvCUR_set (req->sv2, req->result);
800 *SvEND (req->sv2) = 0;
801 SvPOK_only (req->sv2);
802 }
803
804 SvSETMAGIC (req->sv2);
805 }
806
807 PUSHs (sv_result);
808 }
809 break;
810
811 case EIO_CUSTOM:
812 if (req->feed == fiemap)
813 {
814#if HAVE_FIEMAP
815 if (!req->result)
816 {
817 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
818
819 if (fiemap->fm_extent_count)
820 {
821 AV *av = newAV ();
822 int i;
823
824 while (fiemap->fm_mapped_extents)
825 {
826 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
827 AV *ext_av = newAV ();
828
829 av_store (ext_av, 3, newSVuv (extent->fe_flags));
830 av_store (ext_av, 2, newSVval64 (extent->fe_length));
831 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
832 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
833
834 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
835 }
836
837 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
838 }
839 else
840 {
841 SvIV_set (sv_result, fiemap->fm_mapped_extents);
842 PUSHs (sv_result);
843 }
844 }
845#endif
846 }
847 else
848 PUSHs (sv_result);
849 break;
850
851#if 0
852 case EIO_CLOSE:
853 PerlIOUnix_refcnt_dec (req->int1);
854 break;
855#endif
856
857 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
858 if (req->result > 0)
859 SvIV_set (sv_result, 0);
860 /* FALLTHROUGH */
861
862 default:
863 PUSHs (sv_result);
864 break;
865 }
866
867 errno = req->errorno;
868
869 PUTBACK;
870 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
871 SPAGAIN;
872
873 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
874 SvREFCNT_dec (sv_result);
875 else
876 sv_result_cache = sv_result;
877
878 FREETMPS;
879 LEAVE;
880
881 PUTBACK;
176 } 882 }
177}
178 883
179static void aio_grp_dec (aio_req grp) 884 return !!SvTRUE (ERRSV);
180{
181 --grp->length;
182
183 /* call feeder, if applicable */
184 aio_grp_feed (grp);
185
186 /* finish, if done */
187 if (!grp->length && grp->fd)
188 {
189 req_invoke (grp);
190 req_free (grp);
191 }
192} 885}
193 886
194static void poll_wait () 887static void
888req_destroy (aio_req req)
195{ 889{
196 fd_set rfd;
197
198 while (nreqs)
199 {
200 aio_req req;
201 pthread_mutex_lock (&reslock);
202 req = ress;
203 pthread_mutex_unlock (&reslock);
204
205 if (req)
206 return;
207
208 FD_ZERO(&rfd);
209 FD_SET(respipe [0], &rfd);
210
211 select (respipe [0] + 1, &rfd, 0, 0, 0);
212 }
213}
214
215static void req_invoke (aio_req req)
216{
217 dSP;
218 int errorno = errno;
219
220 if (req->flags & FLAG_CANCELLED || !SvOK (req->callback))
221 return;
222
223 errno = req->errorno;
224
225 ENTER;
226 SAVETMPS;
227 PUSHMARK (SP);
228 EXTEND (SP, 1);
229
230 switch (req->type)
231 {
232 case REQ_READDIR:
233 {
234 SV *rv = &PL_sv_undef;
235
236 if (req->result >= 0)
237 {
238 char *buf = req->data2ptr;
239 AV *av = newAV ();
240
241 while (req->result)
242 {
243 SV *sv = newSVpv (buf, 0);
244
245 av_push (av, sv);
246 buf += SvCUR (sv) + 1;
247 req->result--;
248 }
249
250 rv = sv_2mortal (newRV_noinc ((SV *)av));
251 }
252
253 PUSHs (rv);
254 }
255 break;
256
257 case REQ_OPEN:
258 {
259 /* convert fd to fh */
260 SV *fh;
261
262 PUSHs (sv_2mortal (newSViv (req->result)));
263 PUTBACK;
264 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
265 SPAGAIN;
266
267 fh = SvREFCNT_inc (POPs);
268
269 PUSHMARK (SP);
270 XPUSHs (sv_2mortal (fh));
271 }
272 break;
273
274 case REQ_GROUP:
275 req->fd = 2; /* mark group as finished */
276
277 if (req->data)
278 {
279 int i;
280 AV *av = (AV *)req->data;
281
282 EXTEND (SP, AvFILL (av) + 1);
283 for (i = 0; i <= AvFILL (av); ++i)
284 PUSHs (*av_fetch (av, i, 0));
285 }
286 break;
287
288 case REQ_NOP:
289 case REQ_SLEEP:
290 break;
291
292 default:
293 PUSHs (sv_2mortal (newSViv (req->result)));
294 break;
295 }
296
297
298 PUTBACK;
299 call_sv (req->callback, G_VOID | G_EVAL);
300 SPAGAIN;
301
302 FREETMPS;
303 LEAVE;
304
305 errno = errorno;
306
307 if (SvTRUE (ERRSV))
308 {
309 req_free (req);
310 croak (0);
311 }
312}
313
314static void req_free (aio_req req)
315{
316 if (req->grp)
317 {
318 aio_req grp = req->grp;
319
320 /* unlink request */
321 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
322 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
323
324 if (grp->grp_first == req)
325 grp->grp_first = req->grp_next;
326
327 aio_grp_dec (grp);
328 }
329
330 if (req->self) 890 if (req->self)
331 { 891 {
332 sv_unmagic (req->self, PERL_MAGIC_ext); 892 sv_unmagic (req->self, PERL_MAGIC_ext);
333 SvREFCNT_dec (req->self); 893 SvREFCNT_dec (req->self);
334 } 894 }
335 895
336 SvREFCNT_dec (req->data);
337 SvREFCNT_dec (req->fh); 896 SvREFCNT_dec (req->sv1);
338 SvREFCNT_dec (req->fh2); 897 SvREFCNT_dec (req->sv2);
898 SvREFCNT_dec (req->sv3);
899 SvREFCNT_dec (req->sv4);
339 SvREFCNT_dec (req->callback); 900 SvREFCNT_dec (req->callback);
340 Safefree (req->statdata);
341 901
342 if (req->type == REQ_READDIR && req->result >= 0)
343 free (req->data2ptr);
344
345 Safefree (req); 902 free (req);
346} 903}
347 904
348static void req_cancel (aio_req req) 905static void
906req_cancel_subs (aio_req grp)
349{ 907{
350 req->flags |= FLAG_CANCELLED;
351
352 if (req->type == REQ_GROUP) 908 if (grp->type != EIO_GROUP)
909 return;
910
911 SvREFCNT_dec (grp->sv2);
912 grp->sv2 = 0;
913
914 eio_grp_cancel (grp);
915}
916
917ecb_cold
918static void
919create_respipe (void)
920{
921 if (s_epipe_renew (&respipe))
922 croak ("IO::AIO: unable to initialize result pipe");
923}
924
925static void
926poll_wait (void)
927{
928 while (eio_nreqs ())
353 { 929 {
354 aio_req sub; 930 int size;
355 931
356 for (sub = req->grp_first; sub; sub = sub->grp_next) 932 X_LOCK (EIO_POOL->reslock);
357 req_cancel (sub); 933 size = EIO_POOL->res_queue.size;
934 X_UNLOCK (EIO_POOL->reslock);
935
936 if (size)
937 return;
938
939 etp_maybe_start_thread (EIO_POOL);
940
941 s_epipe_wait (&respipe);
358 } 942 }
359} 943}
360 944
361static int poll_cb () 945static int
946poll_cb (void)
362{ 947{
363 dSP;
364 int count = 0;
365 int do_croak = 0;
366 aio_req req;
367
368 for (;;) 948 for (;;)
369 { 949 {
370 pthread_mutex_lock (&reslock); 950 int res = eio_poll ();
371 req = ress;
372 951
373 if (req) 952 if (res > 0)
953 croak (0);
954
955 if (!max_outstanding || max_outstanding > eio_nreqs ())
956 return res;
957
958 poll_wait ();
959 }
960}
961
962ecb_cold
963static void
964reinit (void)
965{
966 create_respipe ();
967
968 if (eio_init (want_poll, done_poll) < 0)
969 croak ("IO::AIO: unable to initialise eio library");
970}
971
972/*****************************************************************************/
973
974static SV *
975get_cb (SV *cb_sv)
976{
977 SvGETMAGIC (cb_sv);
978 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
979}
980
981ecb_noinline
982static aio_req ecb_noinline
983dreq (SV *callback)
984{
985 SV *cb_cv;
986 aio_req req;
987 int req_pri = next_pri;
988 next_pri = EIO_PRI_DEFAULT;
989
990 cb_cv = get_cb (callback);
991
992 req = calloc (sizeof (*req), 1);
993 if (!req)
994 croak ("out of memory during eio_req allocation");
995
996 req->callback = SvREFCNT_inc (cb_cv);
997 req->pri = req_pri;
998
999 return req;
1000}
1001
1002#define dREQ \
1003 aio_req req = dreq (callback); \
1004
1005#define REQ_SEND \
1006 PUTBACK; \
1007 req_submit (req); \
1008 SPAGAIN; \
1009 \
1010 if (GIMME_V != G_VOID) \
1011 XPUSHs (req_sv (req, aio_req_stash));
1012
1013/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1014ecb_inline
1015void
1016req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1017{
1018 if (expect_false (SvROK (path)))
1019 {
1020 SV *rv = SvRV (path);
1021 SV *wdob;
1022
1023 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
374 { 1024 {
375 ress = req->next; 1025 path = AvARRAY (rv)[1];
1026 wdob = AvARRAY (rv)[0];
376 1027
377 if (!ress) 1028 if (SvOK (wdob))
378 { 1029 {
379 /* read any signals sent by the worker threads */ 1030 *wd = SvAIO_WD (wdob);
380 char buf [32]; 1031 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
381 while (read (respipe [0], buf, 32) == 32)
382 ;
383
384 rese = 0;
385 } 1032 }
1033 else
1034 *wd = EIO_INVALID_WD;
386 } 1035 }
387 1036 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
388 pthread_mutex_unlock (&reslock);
389
390 if (!req)
391 break;
392
393 --nreqs;
394
395 if (req->type == REQ_QUIT)
396 started--;
397 else if (req->type == REQ_GROUP && req->length)
398 { 1037 {
399 req->fd = 1; /* mark request as delayed */ 1038 *wd = (aio_wd)(long)SvIVX (rv);
400 continue; 1039 *wdsv = SvREFCNT_inc_NN (rv);
1040 *ptr = ".";
1041 return; /* path set to "." */
401 } 1042 }
402 else 1043 else
403 { 1044 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
404 if (req->type == REQ_READ)
405 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
406
407 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
408 SvREADONLY_off (req->data);
409
410 if (req->statdata)
411 {
412 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
413 PL_laststatval = req->result;
414 PL_statcache = *(req->statdata);
415 }
416
417 req_invoke (req);
418
419 count++;
420 }
421
422 req_free (req);
423 } 1045 }
424 1046
425 return count; 1047 *pathsv = newSVsv (path);
1048 *ptr = SvPVbyte_nolen (*pathsv);
426} 1049}
427 1050
428static void *aio_proc(void *arg); 1051ecb_noinline
429 1052static void
430static void start_thread (void) 1053req_set_path1 (aio_req req, SV *path)
431{ 1054{
432 sigset_t fullsigset, oldsigset; 1055 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
433 pthread_t tid;
434 pthread_attr_t attr;
435
436 pthread_attr_init (&attr);
437 pthread_attr_setstacksize (&attr, STACKSIZE);
438 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
439
440 sigfillset (&fullsigset);
441 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
442
443 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
444 started++;
445
446 sigprocmask (SIG_SETMASK, &oldsigset, 0);
447} 1056}
448 1057
449static void req_send (aio_req req) 1058ecb_noinline
1059static void
1060req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
450{ 1061{
451 while (started < wanted && nreqs >= started) 1062 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
452 start_thread ();
453 1063
454 ++nreqs; 1064 switch (SvTYPE (rv))
455
456 pthread_mutex_lock (&reqlock);
457
458 req->next = 0;
459
460 if (reqe)
461 { 1065 {
462 reqe->next = req; 1066 case SVt_PVIO:
463 reqe = req; 1067 case SVt_PVLV:
1068 case SVt_PVGV:
1069 req->type = type_fh;
1070 req->sv1 = newSVsv (fh_or_path);
1071 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1072 break;
1073
1074 default:
1075 req->type = type_path;
1076 req_set_path1 (req, fh_or_path);
1077 break;
464 } 1078 }
465 else
466 reqe = reqs = req;
467
468 pthread_cond_signal (&reqwait);
469 pthread_mutex_unlock (&reqlock);
470
471 if (nreqs > max_outstanding)
472 for (;;)
473 {
474 poll_cb ();
475
476 if (nreqs <= max_outstanding)
477 break;
478
479 poll_wait ();
480 }
481}
482
483static void end_thread (void)
484{
485 aio_req req;
486 Newz (0, req, 1, aio_cb);
487 req->type = REQ_QUIT;
488
489 req_send (req);
490}
491
492static void min_parallel (int nthreads)
493{
494 if (wanted < nthreads)
495 wanted = nthreads;
496}
497
498static void max_parallel (int nthreads)
499{
500 int cur = started;
501
502 if (wanted > nthreads)
503 wanted = nthreads;
504
505 while (cur > wanted)
506 {
507 end_thread ();
508 cur--;
509 }
510
511 while (started > wanted)
512 {
513 poll_wait ();
514 poll_cb ();
515 }
516}
517
518static void create_pipe ()
519{
520 if (pipe (respipe))
521 croak ("unable to initialize result pipe");
522
523 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
524 croak ("cannot set result pipe to nonblocking mode");
525
526 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
527 croak ("cannot set result pipe to nonblocking mode");
528} 1079}
529 1080
530/*****************************************************************************/ 1081/*****************************************************************************/
531/* work around various missing functions */
532 1082
533#if !HAVE_PREADWRITE 1083static void
534# define pread aio_pread 1084ts_set (struct timespec *ts, NV value)
535# define pwrite aio_pwrite
536
537/*
538 * make our pread/pwrite safe against themselves, but not against
539 * normal read/write by using a mutex. slows down execution a lot,
540 * but that's your problem, not mine.
541 */
542static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
543
544static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
545{ 1085{
546 ssize_t res; 1086 ts->tv_sec = value;
547 off_t ooffset; 1087 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
548
549 pthread_mutex_lock (&preadwritelock);
550 ooffset = lseek (fd, 0, SEEK_CUR);
551 lseek (fd, offset, SEEK_SET);
552 res = read (fd, buf, count);
553 lseek (fd, ooffset, SEEK_SET);
554 pthread_mutex_unlock (&preadwritelock);
555
556 return res;
557} 1088}
558 1089
559static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1090static NV
1091ts_get (const struct timespec *ts)
560{ 1092{
561 ssize_t res; 1093 return ts->tv_sec + ts->tv_nsec * 1e-9;
562 off_t ooffset;
563
564 pthread_mutex_lock (&preadwritelock);
565 ooffset = lseek (fd, 0, SEEK_CUR);
566 lseek (fd, offset, SEEK_SET);
567 res = write (fd, buf, count);
568 lseek (fd, offset, SEEK_SET);
569 pthread_mutex_unlock (&preadwritelock);
570
571 return res;
572} 1094}
573#endif
574 1095
575#if !HAVE_FDATASYNC 1096/*****************************************************************************/
576# define fdatasync fsync
577#endif
578 1097
579#if !HAVE_READAHEAD 1098XS(boot_IO__AIO) ecb_cold;
580# define readahead aio_readahead
581 1099
582static ssize_t readahead (int fd, off_t offset, size_t count) 1100MODULE = IO::AIO PACKAGE = IO::AIO
583{
584 char readahead_buf[4096];
585 1101
586 while (count > 0) 1102PROTOTYPES: ENABLE
587 {
588 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
589 1103
590 pread (fd, readahead_buf, len, offset); 1104BOOT:
591 offset += len;
592 count -= len;
593 }
594
595 errno = 0;
596}
597#endif
598
599#if !HAVE_READDIR_R
600# define readdir_r aio_readdir_r
601
602static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
603
604static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
605{ 1105{
606 struct dirent *e; 1106 static const struct {
607 int errorno; 1107 const char *name;
1108 IV iv;
1109 } *civ, const_iv[] = {
1110# define const_niv(name, value) { # name, (IV) value },
1111# define const_iv(name) { # name, (IV) name },
1112# define const_eio(name) { # name, (IV) EIO_ ## name },
608 1113
609 pthread_mutex_lock (&readdirlock); 1114 /* you have to re-run ./gendef0 after adding/removing any constants here */
1115 /* the first block can be undef if missing */
1116 const_iv (ENOSYS)
1117 const_iv (EXDEV)
1118 const_iv (EBADR)
610 1119
611 e = readdir (dirp); 1120 /* for lseek */
612 errorno = errno; 1121 const_iv (SEEK_DATA)
1122 const_iv (SEEK_HOLE)
613 1123
614 if (e) 1124 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
615 { 1125 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
616 *res = ent; 1126 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
617 strcpy (ent->d_name, e->d_name); 1127 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
618 } 1128 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
619 else 1129 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
620 *res = 0;
621 1130
622 pthread_mutex_unlock (&readdirlock); 1131 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1132 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1133 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1134 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1135 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
623 1136
624 errno = errorno; 1137 /* the second block will be 0 when missing */
625 return e ? 0 : -1; 1138 const_iv (O_ACCMODE)
626}
627#endif
628 1139
629/* sendfile always needs emulation */ 1140 const_iv (O_RDONLY)
630static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) 1141 const_iv (O_WRONLY)
631{ 1142 const_iv (O_RDWR)
632 ssize_t res; 1143 const_iv (O_CREAT)
1144 const_iv (O_TRUNC)
1145 const_iv (O_EXCL)
1146 const_iv (O_APPEND)
633 1147
634 if (!count) 1148 const_iv (O_ASYNC)
635 return 0; 1149 const_iv (O_DIRECT)
1150 const_iv (O_NOATIME)
636 1151
637#if HAVE_SENDFILE 1152 const_iv (O_CLOEXEC)
638# if __linux 1153 const_iv (O_NOCTTY)
639 res = sendfile (ofd, ifd, &offset, count); 1154 const_iv (O_NOFOLLOW)
1155 const_iv (O_NONBLOCK)
1156 const_iv (O_EXEC)
1157 const_iv (O_SEARCH)
1158 const_iv (O_DIRECTORY)
1159 const_iv (O_DSYNC)
1160 const_iv (O_RSYNC)
1161 const_iv (O_SYNC)
1162 const_iv (O_PATH)
1163 const_iv (O_TMPFILE)
1164 const_iv (O_TTY_INIT)
640 1165
641# elif __freebsd 1166 const_iv (S_IFIFO)
642 /* 1167 const_iv (S_IFCHR)
643 * Of course, the freebsd sendfile is a dire hack with no thoughts 1168 const_iv (S_IFBLK)
644 * wasted on making it similar to other I/O functions. 1169 const_iv (S_IFLNK)
645 */ 1170 const_iv (S_IFREG)
1171 const_iv (S_IFDIR)
1172 const_iv (S_IFWHT)
1173 const_iv (S_IFSOCK)
1174 const_iv (S_IFMT)
1175
1176 const_iv (ST_RDONLY)
1177 const_iv (ST_NOSUID)
1178 const_iv (ST_NODEV)
1179 const_iv (ST_NOEXEC)
1180 const_iv (ST_SYNCHRONOUS)
1181 const_iv (ST_MANDLOCK)
1182 const_iv (ST_WRITE)
1183 const_iv (ST_APPEND)
1184 const_iv (ST_IMMUTABLE)
1185 const_iv (ST_NOATIME)
1186 const_iv (ST_NODIRATIME)
1187 const_iv (ST_RELATIME)
1188
1189 const_iv (PROT_NONE)
1190 const_iv (PROT_EXEC)
1191 const_iv (PROT_READ)
1192 const_iv (PROT_WRITE)
1193
1194 const_iv (MAP_PRIVATE)
1195 const_iv (MAP_SHARED)
1196 const_iv (MAP_FIXED)
1197 const_iv (MAP_ANONYMOUS)
1198
1199 /* linuxish */
1200 const_iv (MAP_LOCKED)
1201 const_iv (MAP_NORESERVE)
1202 const_iv (MAP_POPULATE)
1203 const_iv (MAP_NONBLOCK)
1204 const_iv (MAP_GROWSDOWN)
1205 const_iv (MAP_32BIT)
1206 const_iv (MAP_HUGETLB)
1207 const_iv (MAP_STACK)
1208
1209 const_iv (MREMAP_MAYMOVE)
1210 const_iv (MREMAP_FIXED)
1211
1212 const_iv (MSG_CMSG_CLOEXEC)
1213 const_iv (SOCK_CLOEXEC)
1214
1215 const_iv (F_DUPFD_CLOEXEC)
1216
1217 const_iv (F_ADD_SEALS)
1218 const_iv (F_GET_SEALS)
1219 const_iv (F_SEAL_SEAL)
1220 const_iv (F_SEAL_SHRINK)
1221 const_iv (F_SEAL_GROW)
1222 const_iv (F_SEAL_WRITE)
1223
1224 const_iv (F_OFD_GETLK)
1225 const_iv (F_OFD_SETLK)
1226 const_iv (F_OFD_GETLKW)
1227
1228 const_iv (FIFREEZE)
1229 const_iv (FITHAW)
1230 const_iv (FITRIM)
1231 const_iv (FICLONE)
1232 const_iv (FICLONERANGE)
1233 const_iv (FIDEDUPERANGE)
1234
1235 const_iv (FS_IOC_GETFLAGS)
1236 const_iv (FS_IOC_SETFLAGS)
1237 const_iv (FS_IOC_GETVERSION)
1238 const_iv (FS_IOC_SETVERSION)
1239 const_iv (FS_IOC_FIEMAP)
1240 const_iv (FS_IOC_FSGETXATTR)
1241 const_iv (FS_IOC_FSSETXATTR)
1242 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1243 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1244 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1245
1246 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1247
1248 const_iv (FS_SECRM_FL)
1249 const_iv (FS_UNRM_FL)
1250 const_iv (FS_COMPR_FL)
1251 const_iv (FS_SYNC_FL)
1252 const_iv (FS_IMMUTABLE_FL)
1253 const_iv (FS_APPEND_FL)
1254 const_iv (FS_NODUMP_FL)
1255 const_iv (FS_NOATIME_FL)
1256 const_iv (FS_DIRTY_FL)
1257 const_iv (FS_COMPRBLK_FL)
1258 const_iv (FS_NOCOMP_FL)
1259 const_iv (FS_ENCRYPT_FL)
1260 const_iv (FS_BTREE_FL)
1261 const_iv (FS_INDEX_FL)
1262 const_iv (FS_JOURNAL_DATA_FL)
1263 const_iv (FS_NOTAIL_FL)
1264 const_iv (FS_DIRSYNC_FL)
1265 const_iv (FS_TOPDIR_FL)
1266 const_iv (FS_FL_USER_MODIFIABLE)
1267
1268 const_iv (FS_XFLAG_REALTIME)
1269 const_iv (FS_XFLAG_PREALLOC)
1270 const_iv (FS_XFLAG_IMMUTABLE)
1271 const_iv (FS_XFLAG_APPEND)
1272 const_iv (FS_XFLAG_SYNC)
1273 const_iv (FS_XFLAG_NOATIME)
1274 const_iv (FS_XFLAG_NODUMP)
1275 const_iv (FS_XFLAG_RTINHERIT)
1276 const_iv (FS_XFLAG_PROJINHERIT)
1277 const_iv (FS_XFLAG_NOSYMLINKS)
1278 const_iv (FS_XFLAG_EXTSIZE)
1279 const_iv (FS_XFLAG_EXTSZINHERIT)
1280 const_iv (FS_XFLAG_NODEFRAG)
1281 const_iv (FS_XFLAG_FILESTREAM)
1282 const_iv (FS_XFLAG_DAX)
1283 const_iv (FS_XFLAG_HASATTR)
1284
1285 const_iv (FIEMAP_FLAG_SYNC)
1286 const_iv (FIEMAP_FLAG_XATTR)
1287 const_iv (FIEMAP_FLAGS_COMPAT)
1288 const_iv (FIEMAP_EXTENT_LAST)
1289 const_iv (FIEMAP_EXTENT_UNKNOWN)
1290 const_iv (FIEMAP_EXTENT_DELALLOC)
1291 const_iv (FIEMAP_EXTENT_ENCODED)
1292 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1293 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1294 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1295 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1296 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1297 const_iv (FIEMAP_EXTENT_MERGED)
1298 const_iv (FIEMAP_EXTENT_SHARED)
1299
1300 const_iv (SPLICE_F_MOVE)
1301 const_iv (SPLICE_F_NONBLOCK)
1302 const_iv (SPLICE_F_MORE)
1303 const_iv (SPLICE_F_GIFT)
1304
1305 const_iv (EFD_CLOEXEC)
1306 const_iv (EFD_NONBLOCK)
1307 const_iv (EFD_SEMAPHORE)
1308
1309 const_iv (MFD_CLOEXEC)
1310 const_iv (MFD_ALLOW_SEALING)
1311 const_iv (MFD_HUGETLB)
1312
1313 const_iv (CLOCK_REALTIME)
1314 const_iv (CLOCK_MONOTONIC)
1315 const_iv (CLOCK_BOOTTIME)
1316 const_iv (CLOCK_REALTIME_ALARM)
1317 const_iv (CLOCK_BOOTTIME_ALARM)
1318
1319 const_iv (TFD_NONBLOCK)
1320 const_iv (TFD_CLOEXEC)
1321
1322 const_iv (TFD_TIMER_ABSTIME)
1323 const_iv (TFD_TIMER_CANCEL_ON_SET)
1324
1325 const_iv (STATX_TYPE)
1326 const_iv (STATX_MODE)
1327 const_iv (STATX_NLINK)
1328 const_iv (STATX_UID)
1329 const_iv (STATX_GID)
1330 const_iv (STATX_ATIME)
1331 const_iv (STATX_MTIME)
1332 const_iv (STATX_CTIME)
1333 const_iv (STATX_INO)
1334 const_iv (STATX_SIZE)
1335 const_iv (STATX_BLOCKS)
1336 const_iv (STATX_BASIC_STATS)
1337 const_iv (STATX_ALL)
1338 const_iv (STATX_BTIME)
1339 const_iv (STATX_ATTR_COMPRESSED)
1340 const_iv (STATX_ATTR_IMMUTABLE)
1341 const_iv (STATX_ATTR_APPEND)
1342 const_iv (STATX_ATTR_NODUMP)
1343 const_iv (STATX_ATTR_ENCRYPTED)
1344 const_iv (STATX_ATTR_AUTOMOUNT)
1345
1346 const_iv (AT_FDCWD)
1347 const_iv (AT_SYMLINK_NOFOLLOW)
1348 const_iv (AT_EACCESS)
1349 const_iv (AT_REMOVEDIR)
1350 const_iv (AT_SYMLINK_FOLLOW)
1351 const_iv (AT_NO_AUTOMOUNT)
1352 const_iv (AT_EMPTY_PATH)
1353 const_iv (AT_STATX_SYNC_TYPE)
1354 const_iv (AT_STATX_AS_STAT)
1355 const_iv (AT_STATX_FORCE_SYNC)
1356 const_iv (AT_STATX_DONT_SYNC)
1357 const_iv (AT_RECURSIVE)
1358
1359 const_iv (OPEN_TREE_CLONE)
1360
1361 const_iv (FSOPEN_CLOEXEC)
1362
1363 const_iv (FSPICK_CLOEXEC)
1364 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1365 const_iv (FSPICK_NO_AUTOMOUNT)
1366 const_iv (FSPICK_EMPTY_PATH)
1367
1368 const_iv (MOVE_MOUNT_F_SYMLINKS)
1369 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1370 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1371 const_iv (MOVE_MOUNT_T_SYMLINKS)
1372 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1373 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1374
1375 /* waitid */
1376 const_iv (P_PID)
1377 const_iv (P_PIDFD)
1378 const_iv (P_PGID)
1379 const_iv (P_ALL)
1380
1381 const_iv (FSCONFIG_SET_FLAG)
1382 const_iv (FSCONFIG_SET_STRING)
1383 const_iv (FSCONFIG_SET_BINARY)
1384 const_iv (FSCONFIG_SET_PATH)
1385 const_iv (FSCONFIG_SET_PATH_EMPTY)
1386 const_iv (FSCONFIG_SET_FD)
1387 const_iv (FSCONFIG_CMD_CREATE)
1388 const_iv (FSCONFIG_CMD_RECONFIGURE)
1389
1390 const_iv (MOUNT_ATTR_RDONLY)
1391 const_iv (MOUNT_ATTR_NOSUID)
1392 const_iv (MOUNT_ATTR_NODEV)
1393 const_iv (MOUNT_ATTR_NOEXEC)
1394 const_iv (MOUNT_ATTR__ATIME)
1395 const_iv (MOUNT_ATTR_RELATIME)
1396 const_iv (MOUNT_ATTR_NOATIME)
1397 const_iv (MOUNT_ATTR_STRICTATIME)
1398 const_iv (MOUNT_ATTR_NODIRATIME)
1399
1400 /* these are libeio constants, and are independent of gendef0 */
1401 const_eio (SEEK_SET)
1402 const_eio (SEEK_CUR)
1403 const_eio (SEEK_END)
1404
1405 const_eio (MCL_FUTURE)
1406 const_eio (MCL_CURRENT)
1407 const_eio (MCL_ONFAULT)
1408
1409 const_eio (MS_ASYNC)
1410 const_eio (MS_INVALIDATE)
1411 const_eio (MS_SYNC)
1412
1413 const_eio (MT_MODIFY)
1414
1415 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1416 const_eio (SYNC_FILE_RANGE_WRITE)
1417 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1418
1419 const_eio (FALLOC_FL_KEEP_SIZE)
1420 const_eio (FALLOC_FL_PUNCH_HOLE)
1421 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1422 const_eio (FALLOC_FL_ZERO_RANGE)
1423 const_eio (FALLOC_FL_INSERT_RANGE)
1424 const_eio (FALLOC_FL_UNSHARE_RANGE)
1425
1426 const_eio (RENAME_NOREPLACE)
1427 const_eio (RENAME_EXCHANGE)
1428 const_eio (RENAME_WHITEOUT)
1429
1430 const_eio (READDIR_DENTS)
1431 const_eio (READDIR_DIRS_FIRST)
1432 const_eio (READDIR_STAT_ORDER)
1433 const_eio (READDIR_FOUND_UNKNOWN)
1434
1435 const_eio (DT_UNKNOWN)
1436 const_eio (DT_FIFO)
1437 const_eio (DT_CHR)
1438 const_eio (DT_DIR)
1439 const_eio (DT_BLK)
1440 const_eio (DT_REG)
1441 const_eio (DT_LNK)
1442 const_eio (DT_SOCK)
1443 const_eio (DT_WHT)
1444 };
1445
1446 aio_stash = gv_stashpv ("IO::AIO" , 1);
1447 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1448 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1449 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1450
1451 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1452 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1453
1454 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1455
1456 /* allocate dummy pipe fd for aio_close */
646 { 1457 {
647 off_t sbytes; 1458 int pipefd [2];
648 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
649 1459
650 if (res < 0 && sbytes) 1460 if (
651 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ 1461#ifdef _WIN32
652 res = sbytes; 1462 _pipe (pipefd, 1, _O_BINARY) < 0
1463#else
1464 pipe (pipefd) < 0
1465 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1466#endif
1467 || close (pipefd [1]) < 0
1468 )
1469 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1470
1471 close_fd = pipefd [0];
653 } 1472 }
654 1473
655# elif __hpux 1474 reinit ();
656 res = sendfile (ofd, ifd, offset, count, 0, 0); 1475}
657 1476
658# elif __solaris 1477void
1478reinit ()
1479 PROTOTYPE:
1480
1481void
1482max_poll_reqs (unsigned int nreqs)
1483 PROTOTYPE: $
1484 CODE:
1485 eio_set_max_poll_reqs (nreqs);
1486
1487void
1488max_poll_time (double nseconds)
1489 PROTOTYPE: $
1490 CODE:
1491 eio_set_max_poll_time (nseconds);
1492
1493void
1494min_parallel (unsigned int nthreads)
1495 PROTOTYPE: $
1496 CODE:
1497 eio_set_min_parallel (nthreads);
1498
1499void
1500max_parallel (unsigned int nthreads)
1501 PROTOTYPE: $
1502 CODE:
1503 eio_set_max_parallel (nthreads);
1504
1505void
1506max_idle (unsigned int nthreads)
1507 PROTOTYPE: $
1508 CODE:
1509 eio_set_max_idle (nthreads);
1510
1511void
1512idle_timeout (unsigned int seconds)
1513 PROTOTYPE: $
1514 CODE:
1515 eio_set_idle_timeout (seconds);
1516
1517void
1518max_outstanding (unsigned int maxreqs)
1519 PROTOTYPE: $
1520 CODE:
1521 max_outstanding = maxreqs;
1522
1523void
1524aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1525 PPCODE:
1526{
1527 dREQ;
1528
1529 req->type = EIO_WD_OPEN;
1530 req_set_path1 (req, pathname);
1531
1532 REQ_SEND;
1533}
1534
1535void
1536aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1537 PPCODE:
1538{
1539 dREQ;
1540
1541 req->type = EIO_OPEN;
1542 req_set_path1 (req, pathname);
1543 req->int1 = flags;
1544 req->int2 = mode;
1545
1546 REQ_SEND;
1547}
1548
1549void
1550aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1551 ALIAS:
1552 aio_fsync = EIO_FSYNC
1553 aio_fdatasync = EIO_FDATASYNC
1554 aio_syncfs = EIO_SYNCFS
1555 PPCODE:
1556{
1557 int fd = s_fileno_croak (fh, 0);
1558 dREQ;
1559
1560 req->type = ix;
1561 req->sv1 = newSVsv (fh);
1562 req->int1 = fd;
1563
1564 REQ_SEND;
1565}
1566
1567void
1568aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1569 PPCODE:
1570{
1571 int fd = s_fileno_croak (fh, 0);
1572 dREQ;
1573
1574 req->type = EIO_SYNC_FILE_RANGE;
1575 req->sv1 = newSVsv (fh);
1576 req->int1 = fd;
1577 req->offs = offset;
1578 req->size = nbytes;
1579 req->int2 = flags;
1580
1581 REQ_SEND;
1582}
1583
1584void
1585aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1586 PPCODE:
1587{
1588 int fd = s_fileno_croak (fh, 0);
1589 dREQ;
1590
1591 req->type = EIO_FALLOCATE;
1592 req->sv1 = newSVsv (fh);
1593 req->int1 = fd;
1594 req->int2 = mode;
1595 req->offs = offset;
1596 req->size = len;
1597
1598 REQ_SEND;
1599}
1600
1601void
1602aio_close (SV *fh, SV *callback = &PL_sv_undef)
1603 PPCODE:
1604{
1605 int fd = s_fileno_croak (fh, 0);
1606 dREQ;
1607#if 0
1608 /* partially duplicate logic in s_fileno */
1609 SvGETMAGIC (fh);
1610
1611 if (SvROK (fh))
659 { 1612 {
660 struct sendfilevec vec; 1613 fh = SvRV (fh);
661 size_t sbytes; 1614 SvGETMAGIC (fh);
662
663 vec.sfv_fd = ifd;
664 vec.sfv_flag = 0;
665 vec.sfv_off = offset;
666 vec.sfv_len = count;
667
668 res = sendfilev (ofd, &vec, 1, &sbytes);
669
670 if (res < 0 && sbytes)
671 res = sbytes;
672 } 1615 }
673 1616
674# endif 1617 if (SvTYPE (fh) == SVt_PVGV)
675#else
676 res = -1;
677 errno = ENOSYS;
678#endif
679
680 if (res < 0
681 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
682#if __solaris
683 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
684#endif
685 )
686 )
687 {
688 /* emulate sendfile. this is a major pain in the ass */
689 char buf[4096];
690 res = 0;
691
692 while (count)
693 {
694 ssize_t cnt;
695
696 cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
697
698 if (cnt <= 0)
699 {
700 if (cnt && !res) res = -1;
701 break;
702 }
703
704 cnt = write (ofd, buf, cnt);
705
706 if (cnt <= 0)
707 {
708 if (cnt && !res) res = -1;
709 break;
710 }
711
712 offset += cnt;
713 res += cnt;
714 count -= cnt;
715 }
716 }
717
718 return res;
719}
720
721/* read a full directory */
722static int scandir_ (const char *path, void **namesp)
723{
724 DIR *dirp = opendir (path);
725 union
726 {
727 struct dirent d;
728 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
729 } u;
730 struct dirent *entp;
731 char *name, *names;
732 int memlen = 4096;
733 int memofs = 0;
734 int res = 0;
735 int errorno;
736
737 if (!dirp)
738 return -1;
739
740 names = malloc (memlen);
741
742 for (;;)
743 {
744 errno = 0, readdir_r (dirp, &u.d, &entp);
745
746 if (!entp)
747 break;
748
749 name = entp->d_name;
750
751 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
752 {
753 int len = strlen (name) + 1;
754
755 res++;
756
757 while (memofs + len > memlen)
758 {
759 memlen *= 2;
760 names = realloc (names, memlen);
761 if (!names)
762 break;
763 }
764
765 memcpy (names + memofs, name, len);
766 memofs += len;
767 }
768 }
769
770 errorno = errno;
771 closedir (dirp);
772
773 if (errorno)
774 {
775 free (names);
776 errno = errorno;
777 res = -1;
778 }
779
780 *namesp = (void *)names;
781 return res;
782}
783
784/*****************************************************************************/
785
786static void *aio_proc (void *thr_arg)
787{
788 aio_req req;
789 int type;
790
791 do
792 {
793 pthread_mutex_lock (&reqlock);
794
795 for (;;)
796 {
797 req = reqs;
798
799 if (reqs)
800 {
801 reqs = reqs->next;
802 if (!reqs) reqe = 0;
803 }
804
805 if (req)
806 break;
807
808 pthread_cond_wait (&reqwait, &reqlock);
809 }
810
811 pthread_mutex_unlock (&reqlock);
812
813 errno = 0; /* strictly unnecessary */
814 type = req->type; /* remember type for QUIT check */
815
816 if (!(req->flags & FLAG_CANCELLED))
817 switch (type)
818 { 1618 {
819 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 1619 /* perl filehandle */
820 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 1620 PerlIOUnix_refcnt_inc (fd);
1621 do_close ((GV *)fh, 1);
821 1622
822 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 1623 req->type = EIO_CLOSE;
823 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; 1624 req->int1 = fd;
824 1625 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
825 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
826 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
827 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
828
829 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
830 case REQ_CLOSE: req->result = close (req->fd); break;
831 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
832 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
833 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
834 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
835 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
836
837 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
838 case REQ_FSYNC: req->result = fsync (req->fd); break;
839 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
840
841 case REQ_SLEEP:
842 {
843 struct timeval tv;
844
845 tv.tv_sec = req->fd;
846 tv.tv_usec = req->fd2;
847
848 req->result = select (0, 0, 0, 0, &tv);
849 }
850
851 case REQ_GROUP:
852 case REQ_NOP:
853 case REQ_QUIT:
854 break;
855
856 default:
857 req->result = ENOSYS;
858 break;
859 } 1626 }
860
861 req->errorno = errno;
862
863 pthread_mutex_lock (&reslock);
864
865 req->next = 0;
866
867 if (rese)
868 {
869 rese->next = req;
870 rese = req;
871 }
872 else 1627 else
1628#endif
873 { 1629 {
874 rese = ress = req; 1630 /* fd number */
875 1631 req->type = EIO_DUP2;
876 /* write a dummy byte to the pipe so fh becomes ready */ 1632 req->int1 = close_fd;
877 write (respipe [1], &respipe, 1); 1633 req->sv2 = newSVsv (fh);
1634 req->int2 = fd;
878 } 1635 }
879 1636
880 pthread_mutex_unlock (&reslock); 1637 REQ_SEND;
881 }
882 while (type != REQ_QUIT);
883
884 return 0;
885} 1638}
886 1639
887/*****************************************************************************/
888
889static void atfork_prepare (void)
890{
891 pthread_mutex_lock (&reqlock);
892 pthread_mutex_lock (&reslock);
893#if !HAVE_PREADWRITE
894 pthread_mutex_lock (&preadwritelock);
895#endif
896#if !HAVE_READDIR_R
897 pthread_mutex_lock (&readdirlock);
898#endif
899}
900
901static void atfork_parent (void)
902{
903#if !HAVE_READDIR_R
904 pthread_mutex_unlock (&readdirlock);
905#endif
906#if !HAVE_PREADWRITE
907 pthread_mutex_unlock (&preadwritelock);
908#endif
909 pthread_mutex_unlock (&reslock);
910 pthread_mutex_unlock (&reqlock);
911}
912
913static void atfork_child (void)
914{
915 aio_req prv;
916
917 started = 0;
918
919 while (reqs)
920 {
921 prv = reqs;
922 reqs = prv->next;
923 req_free (prv);
924 }
925
926 reqs = reqe = 0;
927
928 while (ress)
929 {
930 prv = ress;
931 ress = prv->next;
932 req_free (prv);
933 }
934
935 ress = rese = 0;
936
937 close (respipe [0]);
938 close (respipe [1]);
939 create_pipe ();
940
941 atfork_parent ();
942}
943
944#define dREQ \
945 aio_req req; \
946 int req_pri = next_pri; \
947 next_pri = DEFAULT_PRI + PRI_BIAS; \
948 \
949 if (SvOK (callback) && !SvROK (callback)) \
950 croak ("callback must be undef or of reference type"); \
951 \
952 Newz (0, req, 1, aio_cb); \
953 if (!req) \
954 croak ("out of memory during aio_req allocation"); \
955 \
956 req->callback = newSVsv (callback); \
957 req->pri = req_pri
958
959#define REQ_SEND \
960 req_send (req); \
961 \
962 if (GIMME_V != G_VOID) \
963 XPUSHs (req_sv (req, AIO_REQ_KLASS));
964
965MODULE = IO::AIO PACKAGE = IO::AIO
966
967PROTOTYPES: ENABLE
968
969BOOT:
970{
971 HV *stash = gv_stashpv ("IO::AIO", 1);
972 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
973 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
974 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
975
976 create_pipe ();
977 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
978}
979
980void 1640void
981min_parallel (nthreads) 1641aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
982 int nthreads
983 PROTOTYPE: $
984
985void
986max_parallel (nthreads)
987 int nthreads
988 PROTOTYPE: $
989
990int
991max_outstanding (nreqs)
992 int nreqs
993 PROTOTYPE: $
994 CODE: 1642 PPCODE:
995 RETVAL = max_outstanding;
996 max_outstanding = nreqs;
997
998void
999aio_open (pathname,flags,mode,callback=&PL_sv_undef)
1000 SV * pathname
1001 int flags
1002 int mode
1003 SV * callback
1004 PROTOTYPE: $$$;$
1005 PPCODE:
1006{ 1643{
1644 int fd = s_fileno_croak (fh, 0);
1007 dREQ; 1645 dREQ;
1008 1646
1009 req->type = REQ_OPEN; 1647 req->type = EIO_SEEK;
1010 req->data = newSVsv (pathname); 1648 req->sv1 = newSVsv (fh);
1011 req->dataptr = SvPVbyte_nolen (req->data); 1649 req->int1 = fd;
1012 req->fd = flags; 1650 req->offs = SvVAL64 (offset);
1013 req->mode = mode; 1651 req->int2 = whence;
1014 1652
1015 REQ_SEND; 1653 REQ_SEND;
1016} 1654}
1017 1655
1018void 1656void
1019aio_close (fh,callback=&PL_sv_undef) 1657aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1020 SV * fh
1021 SV * callback
1022 PROTOTYPE: $;$
1023 ALIAS: 1658 ALIAS:
1024 aio_close = REQ_CLOSE
1025 aio_fsync = REQ_FSYNC
1026 aio_fdatasync = REQ_FDATASYNC
1027 PPCODE:
1028{
1029 dREQ;
1030
1031 req->type = ix;
1032 req->fh = newSVsv (fh);
1033 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1034
1035 REQ_SEND (req);
1036}
1037
1038void
1039aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1040 SV * fh
1041 UV offset
1042 UV length
1043 SV * data
1044 UV dataoffset
1045 SV * callback
1046 ALIAS:
1047 aio_read = REQ_READ 1659 aio_read = EIO_READ
1048 aio_write = REQ_WRITE 1660 aio_write = EIO_WRITE
1049 PROTOTYPE: $$$$$;$
1050 PPCODE: 1661 PPCODE:
1051{ 1662{
1052 aio_req req;
1053 STRLEN svlen; 1663 STRLEN svlen;
1664 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1054 char *svptr = SvPVbyte (data, svlen); 1665 char *svptr = SvPVbyte (data, svlen);
1055 1666 UV len = SvUV (length);
1056 SvUPGRADE (data, SVt_PV);
1057 SvPOK_on (data);
1058 1667
1059 if (dataoffset < 0) 1668 if (dataoffset < 0)
1060 dataoffset += svlen; 1669 dataoffset += svlen;
1061 1670
1062 if (dataoffset < 0 || dataoffset > svlen) 1671 if (dataoffset < 0 || dataoffset > svlen)
1063 croak ("data offset outside of string"); 1672 croak ("dataoffset outside of data scalar");
1064 1673
1065 if (ix == REQ_WRITE) 1674 if (ix == EIO_WRITE)
1066 { 1675 {
1067 /* write: check length and adjust. */ 1676 /* write: check length and adjust. */
1068 if (length < 0 || length + dataoffset > svlen) 1677 if (!SvOK (length) || len + dataoffset > svlen)
1069 length = svlen - dataoffset; 1678 len = svlen - dataoffset;
1070 } 1679 }
1071 else 1680 else
1072 { 1681 {
1073 /* read: grow scalar as necessary */ 1682 /* read: check type and grow scalar as necessary */
1683 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1074 svptr = SvGROW (data, length + dataoffset); 1684 svptr = sv_grow (data, len + dataoffset + 1);
1685 else if (SvCUR (data) < len + dataoffset)
1686 croak ("length + dataoffset outside of scalar, and cannot grow");
1075 } 1687 }
1076
1077 if (length < 0)
1078 croak ("length must not be negative");
1079 1688
1080 { 1689 {
1081 dREQ; 1690 dREQ;
1082 1691
1083 req->type = ix; 1692 req->type = ix;
1084 req->fh = newSVsv (fh); 1693 req->sv1 = newSVsv (fh);
1085 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1694 req->int1 = fd;
1086 : IoOFP (sv_2io (fh))); 1695 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1087 req->offset = offset; 1696 req->size = len;
1088 req->length = length;
1089 req->data = SvREFCNT_inc (data); 1697 req->sv2 = SvREFCNT_inc (data);
1090 req->dataptr = (char *)svptr + dataoffset; 1698 req->ptr2 = (char *)svptr + dataoffset;
1699 req->stroffset = dataoffset;
1091 1700
1092 if (!SvREADONLY (data)) 1701 if (!SvREADONLY (data))
1093 { 1702 {
1094 SvREADONLY_on (data); 1703 SvREADONLY_on (data);
1095 req->data2ptr = (void *)data; 1704 req->flags |= FLAG_SV2_RO_OFF;
1096 } 1705 }
1097 1706
1098 REQ_SEND; 1707 REQ_SEND;
1099 } 1708 }
1100} 1709}
1101 1710
1102void 1711void
1103aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1712aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1104 SV * out_fh 1713 ALIAS:
1105 SV * in_fh 1714 aio_ioctl = EIO_IOCTL
1106 UV in_offset 1715 aio_fcntl = EIO_FCNTL
1107 UV length
1108 SV * callback
1109 PROTOTYPE: $$$$;$
1110 PPCODE: 1716 PPCODE:
1111{ 1717{
1112 dREQ; 1718 int fd = s_fileno_croak (fh, 0);
1719 char *svptr;
1113 1720
1114 req->type = REQ_SENDFILE; 1721 if (SvPOK (arg) || !SvNIOK (arg))
1115 req->fh = newSVsv (out_fh);
1116 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1117 req->fh2 = newSVsv (in_fh);
1118 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1119 req->offset = in_offset;
1120 req->length = length;
1121
1122 REQ_SEND;
1123}
1124
1125void
1126aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1127 SV * fh
1128 UV offset
1129 IV length
1130 SV * callback
1131 PROTOTYPE: $$$;$
1132 PPCODE:
1133{
1134 dREQ;
1135
1136 req->type = REQ_READAHEAD;
1137 req->fh = newSVsv (fh);
1138 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1139 req->offset = offset;
1140 req->length = length;
1141
1142 REQ_SEND;
1143}
1144
1145void
1146aio_stat (fh_or_path,callback=&PL_sv_undef)
1147 SV * fh_or_path
1148 SV * callback
1149 ALIAS:
1150 aio_stat = REQ_STAT
1151 aio_lstat = REQ_LSTAT
1152 PPCODE:
1153{
1154 dREQ;
1155
1156 New (0, req->statdata, 1, Stat_t);
1157 if (!req->statdata)
1158 { 1722 {
1159 req_free (req); 1723 STRLEN svlen;
1160 croak ("out of memory during aio_req->statdata allocation"); 1724 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1161 } 1725#ifdef IOCPARM_LEN
1726 STRLEN need = IOCPARM_LEN (request);
1727#else
1728 STRLEN need = 256;
1729#endif
1162 1730
1163 if (SvPOK (fh_or_path)) 1731 if (svlen < need)
1164 { 1732 svptr = SvGROW (arg, need);
1165 req->type = ix;
1166 req->data = newSVsv (fh_or_path);
1167 req->dataptr = SvPVbyte_nolen (req->data);
1168 } 1733 }
1169 else 1734 else
1735 svptr = (char *)SvIV (arg);
1736
1170 { 1737 {
1738 dREQ;
1739
1171 req->type = REQ_FSTAT; 1740 req->type = ix;
1172 req->fh = newSVsv (fh_or_path); 1741 req->sv1 = newSVsv (fh);
1173 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1742 req->int1 = fd;
1743 req->int2 = (long)request;
1744 req->sv2 = SvREFCNT_inc (arg);
1745 req->ptr2 = svptr;
1746
1747 REQ_SEND;
1174 } 1748 }
1749}
1750
1751void
1752aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1753 ALIAS:
1754 aio_readlink = EIO_READLINK
1755 aio_realpath = EIO_REALPATH
1756 PPCODE:
1757{
1758 dREQ;
1759
1760 req->type = ix;
1761 req_set_path1 (req, pathname);
1175 1762
1176 REQ_SEND; 1763 REQ_SEND;
1177} 1764}
1178 1765
1179void 1766void
1180aio_unlink (pathname,callback=&PL_sv_undef) 1767aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1181 SV * pathname 1768 PPCODE:
1182 SV * callback 1769{
1770 int ifd = s_fileno_croak (in_fh , 0);
1771 int ofd = s_fileno_croak (out_fh, 1);
1772 dREQ;
1773
1774 req->type = EIO_SENDFILE;
1775 req->sv1 = newSVsv (out_fh);
1776 req->int1 = ofd;
1777 req->sv2 = newSVsv (in_fh);
1778 req->int2 = ifd;
1779 req->offs = in_offset;
1780 req->size = length;
1781
1782 REQ_SEND;
1783}
1784
1785void
1786aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1787 PPCODE:
1788{
1789 int fd = s_fileno_croak (fh, 0);
1790 dREQ;
1791
1792 req->type = EIO_READAHEAD;
1793 req->sv1 = newSVsv (fh);
1794 req->int1 = fd;
1795 req->offs = offset;
1796 req->size = length;
1797
1798 REQ_SEND;
1799}
1800
1801void
1802aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1183 ALIAS: 1803 ALIAS:
1804 aio_stat = EIO_STAT
1805 aio_lstat = EIO_LSTAT
1806 aio_statvfs = EIO_STATVFS
1807 PPCODE:
1808{
1809 dREQ;
1810
1811 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1812
1813 REQ_SEND;
1814}
1815
1816void
1817st_xtime ()
1818 ALIAS:
1819 st_atime = 0x01
1820 st_mtime = 0x02
1821 st_ctime = 0x04
1822 st_btime = 0x08
1823 st_xtime = 0x0f
1824 PPCODE:
1825 EXTEND (SP, 4);
1826 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1827 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1828 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1829 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1830
1831void
1832st_xtimensec ()
1833 ALIAS:
1834 st_atimensec = 0x01
1835 st_mtimensec = 0x02
1836 st_ctimensec = 0x04
1837 st_btimensec = 0x08
1838 st_xtimensec = 0x0f
1839 st_btimesec = 0x10
1840 st_gen = 0x20
1841 PPCODE:
1842 EXTEND (SP, 4);
1843 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1844 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1845 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1846 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1847 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1848 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1849
1850UV
1851major (UV dev)
1852 ALIAS:
1853 minor = 1
1854 CODE:
1855 RETVAL = ix ? minor (dev) : major (dev);
1856 OUTPUT:
1857 RETVAL
1858
1859UV
1860makedev (UV maj, UV min)
1861 CODE:
1862 RETVAL = makedev (maj, min);
1863 OUTPUT:
1864 RETVAL
1865
1866void
1867aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1868 PPCODE:
1869{
1870 dREQ;
1871
1872 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1873 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1874 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1875
1876 REQ_SEND;
1877}
1878
1879void
1880aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1881 PPCODE:
1882{
1883 dREQ;
1884
1885 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1886 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1887
1888 REQ_SEND;
1889}
1890
1891void
1892aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1893 PPCODE:
1894{
1895 dREQ;
1896
1897 req->int2 = mode;
1898 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1899
1900 REQ_SEND;
1901}
1902
1903void
1904aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1905 PPCODE:
1906{
1907 dREQ;
1908
1909 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1910 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1911 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1912
1913 REQ_SEND;
1914}
1915
1916void
1917aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1918 PPCODE:
1919{
1920 dREQ;
1921
1922 req->type = EIO_READDIR;
1923 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1924
1925 if (flags & EIO_READDIR_DENTS)
1926 req->int1 |= EIO_READDIR_CUSTOM2;
1927
1928 req_set_path1 (req, pathname);
1929
1930 REQ_SEND;
1931}
1932
1933void
1934aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1935 PPCODE:
1936{
1937 dREQ;
1938
1939 req->type = EIO_MKDIR;
1940 req->int2 = mode;
1941 req_set_path1 (req, pathname);
1942
1943 REQ_SEND;
1944}
1945
1946void
1947aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1948 ALIAS:
1184 aio_unlink = REQ_UNLINK 1949 aio_unlink = EIO_UNLINK
1185 aio_rmdir = REQ_RMDIR 1950 aio_rmdir = EIO_RMDIR
1186 aio_readdir = REQ_READDIR 1951 aio_readdir = EIO_READDIR
1187 PPCODE: 1952 PPCODE:
1188{ 1953{
1189 dREQ; 1954 dREQ;
1190 1955
1191 req->type = ix; 1956 req->type = ix;
1192 req->data = newSVsv (pathname); 1957 req_set_path1 (req, pathname);
1193 req->dataptr = SvPVbyte_nolen (req->data); 1958
1194
1195 REQ_SEND; 1959 REQ_SEND;
1196} 1960}
1197 1961
1198void 1962void
1199aio_link (oldpath,newpath,callback=&PL_sv_undef) 1963aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1200 SV * oldpath
1201 SV * newpath
1202 SV * callback
1203 ALIAS: 1964 ALIAS:
1204 aio_link = REQ_LINK 1965 aio_link = EIO_LINK
1205 aio_symlink = REQ_SYMLINK 1966 aio_symlink = EIO_SYMLINK
1206 aio_rename = REQ_RENAME 1967 aio_rename = EIO_RENAME
1207 PPCODE: 1968 PPCODE:
1208{ 1969{
1970 eio_wd wd2 = 0;
1209 dREQ; 1971 dREQ;
1210 1972
1211 req->type = ix; 1973 req->type = ix;
1212 req->fh = newSVsv (oldpath); 1974 req_set_path1 (req, oldpath);
1213 req->data2ptr = SvPVbyte_nolen (req->fh); 1975 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1214 req->data = newSVsv (newpath); 1976 req->int3 = (long)wd2;
1215 req->dataptr = SvPVbyte_nolen (req->data);
1216 1977
1217 REQ_SEND; 1978 REQ_SEND;
1218} 1979}
1219 1980
1220void 1981void
1221aio_sleep (delay,callback=&PL_sv_undef) 1982aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1222 double delay
1223 SV * callback
1224 PPCODE: 1983 PPCODE:
1225{ 1984{
1985 eio_wd wd2 = 0;
1226 dREQ; 1986 dREQ;
1227 1987
1228 req->type = REQ_SLEEP; 1988 req->type = EIO_RENAME;
1229 req->fd = delay < 0. ? 0 : delay; 1989 req_set_path1 (req, oldpath);
1230 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1990 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1231 1991 req->int2 = flags;
1992 req->int3 = (long)wd2;
1993
1232 REQ_SEND; 1994 REQ_SEND;
1233} 1995}
1234 1996
1235void 1997void
1236aio_group (callback=&PL_sv_undef) 1998aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1237 SV * callback 1999 PPCODE:
1238 PROTOTYPE: ;$ 2000{
2001 dREQ;
2002
2003 req->type = EIO_MKNOD;
2004 req->int2 = (mode_t)mode;
2005 req->offs = dev;
2006 req_set_path1 (req, pathname);
2007
2008 REQ_SEND;
2009}
2010
2011void
2012aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
2013 ALIAS:
2014 aio_mtouch = EIO_MTOUCH
2015 aio_msync = EIO_MSYNC
1239 PPCODE: 2016 PPCODE:
1240{ 2017{
2018 STRLEN svlen;
2019 char *svptr = SvPVbyte (data, svlen);
2020 UV len = SvUV (length);
2021
2022 if (flags < 0)
2023 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
2024
2025 if (offset < 0)
2026 offset += svlen;
2027
2028 if (offset < 0 || offset > svlen)
2029 croak ("offset outside of scalar");
2030
2031 if (!SvOK (length) || len + offset > svlen)
2032 len = svlen - offset;
2033
2034 {
2035 dREQ;
2036
2037 req->type = ix;
2038 req->sv2 = SvREFCNT_inc (data);
2039 req->ptr2 = (char *)svptr + offset;
2040 req->size = len;
2041 req->int1 = flags;
2042
2043 REQ_SEND;
2044 }
2045}
2046
2047void
2048aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2049 PPCODE:
2050{
2051 STRLEN svlen;
2052 char *svptr = SvPVbyte (data, svlen);
2053 UV len = SvUV (length);
2054
2055 if (offset < 0)
2056 offset += svlen;
2057
2058 if (offset < 0 || offset > svlen)
2059 croak ("offset outside of scalar");
2060
2061 if (!SvOK (length) || len + offset > svlen)
2062 len = svlen - offset;
2063
2064 {
2065 dREQ;
2066
2067 req->type = EIO_MLOCK;
2068 req->sv2 = SvREFCNT_inc (data);
2069 req->ptr2 = (char *)svptr + offset;
2070 req->size = len;
2071
2072 REQ_SEND;
2073 }
2074}
2075
2076void
2077aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2078 PPCODE:
2079{
2080 dREQ;
2081
2082 req->type = EIO_MLOCKALL;
2083 req->int1 = flags;
2084
2085 REQ_SEND;
2086}
2087
2088void
2089aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2090 PPCODE:
2091{
2092 int fd = s_fileno_croak (fh, 0);
1241 dREQ; 2093 dREQ;
1242 2094
1243 req->type = REQ_GROUP; 2095 req->type = EIO_CUSTOM;
1244 req_send (req); 2096 req->sv1 = newSVsv (fh);
2097 req->int1 = fd;
1245 2098
1246 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2099 req->feed = fiemap;
1247} 2100#if HAVE_FIEMAP
2101 /* keep our fingers crossed that the next two types are 64 bit */
2102 req->offs = start;
2103 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2104 req->int2 = flags;
2105 req->int3 = SvOK (count) ? SvIV (count) : -1;
2106#endif
1248 2107
2108 REQ_SEND;
2109}
2110
1249void 2111void
1250aio_nop (callback=&PL_sv_undef) 2112aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1251 SV * callback 2113 PPCODE:
2114{
2115 char *svptr = 0;
2116
2117 sv_clear_foreign (data);
2118
2119 if (length) /* known length, directly read into scalar */
2120 {
2121 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2122 svptr = sv_grow (data, length + 1);
2123 else if (SvCUR (data) < length)
2124 croak ("length outside of scalar, and cannot grow");
2125 else
2126 svptr = SvPVbyte_nolen (data);
2127 }
2128
2129 {
2130 dREQ;
2131
2132 req->type = EIO_SLURP;
2133 req_set_path1 (req, pathname);
2134 req->offs = offset;
2135 req->size = length;
2136 req->sv2 = SvREFCNT_inc (data);
2137 req->ptr2 = svptr;
2138
2139 if (!SvREADONLY (data))
2140 {
2141 SvREADONLY_on (data);
2142 req->flags |= FLAG_SV2_RO_OFF;
2143 }
2144
2145 REQ_SEND;
2146 }
2147}
2148
2149void
2150aio_busy (double delay, SV *callback = &PL_sv_undef)
1252 PPCODE: 2151 PPCODE:
1253{ 2152{
1254 dREQ; 2153 dREQ;
1255 2154
1256 req->type = REQ_NOP; 2155 req->type = EIO_BUSY;
2156 req->nv1 = delay < 0. ? 0. : delay;
1257 2157
1258 REQ_SEND; 2158 REQ_SEND;
1259} 2159}
1260 2160
1261#if 0
1262
1263void 2161void
1264aio_pri (int pri = DEFAULT_PRI) 2162aio_group (SV *callback = &PL_sv_undef)
2163 PPCODE:
2164{
2165 dREQ;
2166
2167 req->type = EIO_GROUP;
2168
2169 PUTBACK;
2170 req_submit (req);
2171 SPAGAIN;
2172
2173 XPUSHs (req_sv (req, aio_grp_stash));
2174}
2175
2176void
2177aio_nop (SV *callback = &PL_sv_undef)
2178 ALIAS:
2179 aio_nop = EIO_NOP
2180 aio_sync = EIO_SYNC
2181 PPCODE:
2182{
2183 dREQ;
2184
2185 req->type = ix;
2186
2187 REQ_SEND;
2188}
2189
2190int
2191aioreq_pri (int pri = NO_INIT)
1265 CODE: 2192 CODE:
2193 RETVAL = next_pri;
2194 if (items > 0)
2195 {
1266 if (pri < PRI_MIN) pri = PRI_MIN; 2196 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1267 if (pri > PRI_MAX) pri = PRI_MAX; 2197 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1268 next_pri = pri + PRI_BIAS; 2198 next_pri = pri;
2199 }
2200 OUTPUT:
2201 RETVAL
1269 2202
1270#endif 2203void
2204aioreq_nice (int nice = 0)
2205 CODE:
2206 nice = next_pri - nice;
2207 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
2208 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
2209 next_pri = nice;
1271 2210
1272void 2211void
1273flush () 2212flush ()
1274 PROTOTYPE:
1275 CODE: 2213 CODE:
1276 while (nreqs) 2214 while (eio_nreqs ())
1277 { 2215 {
1278 poll_wait (); 2216 poll_wait ();
1279 poll_cb (); 2217 poll_cb ();
1280 } 2218 }
1281 2219
1282void 2220int
1283poll() 2221poll ()
1284 PROTOTYPE:
1285 CODE: 2222 CODE:
1286 if (nreqs)
1287 {
1288 poll_wait (); 2223 poll_wait ();
1289 poll_cb (); 2224 RETVAL = poll_cb ();
1290 }
1291
1292int
1293poll_fileno()
1294 PROTOTYPE:
1295 CODE:
1296 RETVAL = respipe [0];
1297 OUTPUT: 2225 OUTPUT:
1298 RETVAL 2226 RETVAL
1299 2227
1300int 2228int
2229poll_fileno ()
2230 CODE:
2231 RETVAL = s_epipe_fd (&respipe);
2232 OUTPUT:
2233 RETVAL
2234
2235int
1301poll_cb(...) 2236poll_cb (...)
1302 PROTOTYPE: 2237 PROTOTYPE:
1303 CODE: 2238 CODE:
1304 RETVAL = poll_cb (); 2239 RETVAL = poll_cb ();
1305 OUTPUT: 2240 OUTPUT:
1306 RETVAL 2241 RETVAL
1307 2242
1308void 2243void
1309poll_wait() 2244poll_wait ()
2245 CODE:
2246 poll_wait ();
2247
2248int
2249nreqs ()
2250 CODE:
2251 RETVAL = eio_nreqs ();
2252 OUTPUT:
2253 RETVAL
2254
2255int
2256nready ()
2257 CODE:
2258 RETVAL = eio_nready ();
2259 OUTPUT:
2260 RETVAL
2261
2262int
2263npending ()
2264 CODE:
2265 RETVAL = eio_npending ();
2266 OUTPUT:
2267 RETVAL
2268
2269int
2270nthreads ()
2271 CODE:
2272 RETVAL = eio_nthreads ();
2273 OUTPUT:
2274 RETVAL
2275
2276int
2277fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2278 CODE:
2279 RETVAL = posix_fadvise (fh, offset, length, advice);
2280 OUTPUT:
2281 RETVAL
2282
2283IV
2284sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2285 CODE:
2286 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2287 OUTPUT:
2288 RETVAL
2289
2290void
2291mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2292 PPCODE:
2293 sv_clear_foreign (scalar);
2294{
2295 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2296 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2297 if (addr == (void *)-1)
2298 XSRETURN_NO;
2299
2300 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2301
2302 if (!(prot & PROT_WRITE))
2303 SvREADONLY_on (scalar);
2304
2305 XSRETURN_YES;
2306}
2307
2308void
2309munmap (SV *scalar)
2310 CODE:
2311 sv_clear_foreign (scalar);
2312
2313SV *
2314mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2315 CODE:
2316{
2317 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2318 void *new;
2319
2320 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2321 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2322
2323 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2324
2325 RETVAL = &PL_sv_no;
2326
2327 if (new != (void *)-1)
2328 {
2329 RETVAL = new == (void *)mg->mg_ptr
2330 ? newSVpvn ("0 but true", 10)
2331 : &PL_sv_yes;
2332
2333 mg->mg_ptr = (char *)new;
2334 mg->mg_obj = (SV *)new_length;
2335
2336 SvPVX (scalar) = mg->mg_ptr;
2337 SvCUR_set (scalar, new_length);
2338 }
2339}
2340 OUTPUT:
2341 RETVAL
2342
2343int
2344madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2345 ALIAS:
2346 mprotect = 1
2347 CODE:
2348{
2349 STRLEN svlen;
2350 void *addr = SvPVbyte (scalar, svlen);
2351 STRLEN len = SvUV (length);
2352
2353 if (offset < 0)
2354 offset += svlen;
2355
2356 if (offset < 0 || offset > svlen)
2357 croak ("offset outside of scalar");
2358
2359 if (!SvOK (length) || len + offset > svlen)
2360 len = svlen - offset;
2361
2362 addr = (void *)(((intptr_t)addr) + offset);
2363 eio_page_align (&addr, &len);
2364
2365 switch (ix)
2366 {
2367 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2368 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2369 }
2370}
2371 OUTPUT:
2372 RETVAL
2373
2374int
2375munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2376 CODE:
2377{
2378 STRLEN svlen;
2379 void *addr = SvPVbyte (scalar, svlen);
2380 size_t len = SvUV (length);
2381
2382 if (offset < 0)
2383 offset += svlen;
2384
2385 if (offset < 0 || offset > svlen)
2386 croak ("offset outside of scalar");
2387
2388 if (!SvOK (length) || len + offset > svlen)
2389 len = svlen - offset;
2390
2391 addr = (void *)(((intptr_t)addr) + offset);
2392 eio_page_align (&addr, &len);
2393#if _POSIX_MEMLOCK_RANGE
2394 RETVAL = munlock (addr, len);
2395#else
2396 RETVAL = EIO_ENOSYS ();
2397#endif
2398}
2399 OUTPUT:
2400 RETVAL
2401
2402int
2403mlockall (int flags)
2404 PROTOTYPE: $;
2405 CODE:
2406 RETVAL = eio_mlockall_sync (flags);
2407 OUTPUT:
2408 RETVAL
2409
2410int
2411munlockall ()
2412 CODE:
2413#if _POSIX_MEMLOCK
2414 munlockall ();
2415#else
2416 RETVAL = EIO_ENOSYS ();
2417#endif
2418 OUTPUT:
2419 RETVAL
2420
2421int
2422statx (SV8 *pathname, int flags, UV mask)
2423 CODE:
2424{
2425 /* undocumented, and might go away, and anyway, should use eio_statx */
2426 SV *wdsv = 0;
2427 SV *pathsv = 0;
2428 eio_wd wd = EIO_CWD;
2429 void *ptr;
2430 int res;
2431
2432 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2433 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2434
2435 SvREFCNT_dec (pathsv);
2436 SvREFCNT_dec (wdsv);
2437}
2438 OUTPUT:
2439 RETVAL
2440
2441U32
2442stx_mode ()
1310 PROTOTYPE: 2443 PROTOTYPE:
1311 CODE: 2444 CODE:
2445#if HAVE_STATX
2446 RETVAL = stx.stx_mode;
2447#else
2448 XSRETURN_UNDEF;
2449#endif
2450 OUTPUT:
2451 RETVAL
2452
2453#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2454#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2455#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2456#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2457#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2458#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2459#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2460#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2461#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2462#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2463#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2464#define STATX_OFFSET_size statx_offsetof (stx_size)
2465#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2466#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2467#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2468#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2469#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2470#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2471
2472U32
2473stx_mask ()
2474 PROTOTYPE:
2475 ALIAS:
2476 stx_mask = STATX_OFFSET_mask
2477 stx_blksize = STATX_OFFSET_blksize
2478 stx_nlink = STATX_OFFSET_nlink
2479 stx_uid = STATX_OFFSET_uid
2480 stx_gid = STATX_OFFSET_gid
2481 stx_rdev_major = STATX_OFFSET_rdev_major
2482 stx_rdev_minor = STATX_OFFSET_rdev_minor
2483 stx_dev_major = STATX_OFFSET_dev_major
2484 stx_dev_minor = STATX_OFFSET_dev_minor
2485 CODE:
2486#if HAVE_STATX
2487 RETVAL = *(__u32 *)((char *)&stx + ix);
2488#else
2489 XSRETURN_UNDEF;
2490#endif
2491 OUTPUT:
2492 RETVAL
2493
2494VAL64
2495stx_attributes ()
2496 PROTOTYPE:
2497 ALIAS:
2498 stx_attributes = STATX_OFFSET_attributes
2499 stx_ino = STATX_OFFSET_ino
2500 stx_size = STATX_OFFSET_size
2501 stx_blocks = STATX_OFFSET_blocks
2502 stx_attributes_mask = STATX_OFFSET_attributes_mask
2503 CODE:
2504#if HAVE_STATX
2505 RETVAL = *(__u64 *)((char *)&stx + ix);
2506#else
2507 XSRETURN_UNDEF;
2508#endif
2509 OUTPUT:
2510 RETVAL
2511
2512NV
2513stx_atime ()
2514 PROTOTYPE:
2515 ALIAS:
2516 stx_atime = STATX_OFFSET_atime
2517 stx_btime = STATX_OFFSET_btime
2518 stx_ctime = STATX_OFFSET_ctime
2519 stx_mtime = STATX_OFFSET_mtime
2520 CODE:
2521#if HAVE_STATX
2522 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2523 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2524#else
2525 XSRETURN_UNDEF;
2526#endif
2527 OUTPUT:
2528 RETVAL
2529
2530VAL64
2531stx_atimesec ()
2532 PROTOTYPE:
2533 ALIAS:
2534 stx_atimesec = STATX_OFFSET_atime
2535 stx_btimesec = STATX_OFFSET_btime
2536 stx_ctimesec = STATX_OFFSET_ctime
2537 stx_mtimesec = STATX_OFFSET_mtime
2538 CODE:
2539#if HAVE_STATX
2540 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2541 RETVAL = ts->tv_sec;
2542#else
2543 XSRETURN_UNDEF;
2544#endif
2545 OUTPUT:
2546 RETVAL
2547
2548U32
2549stx_atimensec ()
2550 PROTOTYPE:
2551 ALIAS:
2552 stx_atimensec = STATX_OFFSET_atime
2553 stx_btimensec = STATX_OFFSET_btime
2554 stx_ctimensec = STATX_OFFSET_ctime
2555 stx_mtimensec = STATX_OFFSET_mtime
2556 CODE:
2557#if HAVE_STATX
2558 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2559 RETVAL = ts->tv_nsec;
2560#else
2561 RETVAL = 0;
2562#endif
2563 OUTPUT:
2564 RETVAL
2565
2566void
2567accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2568 PPCODE:
2569{
2570 SV *retval;
2571#if HAVE_ACCEPT4
2572 socklen_t salen_ = salen ? salen + 1 : 0;
2573
1312 if (nreqs) 2574 if (salen)
1313 poll_wait (); 2575 {
2576 sv_upgrade (sockaddr, SVt_PV);
2577 sv_grow (sockaddr, salen_);
2578 }
2579
2580 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2581
2582 retval = newmortalFH (res, O_RDWR);
2583
2584 if (res >= 0 && salen > 0)
2585 {
2586 if (salen_ > salen + 1)
2587 salen_ = salen + 1;
2588
2589 SvPOK_only (sockaddr);
2590 SvCUR_set (sockaddr, salen_);
2591 }
2592#else
2593 errno = ENOSYS;
2594 retval = &PL_sv_undef;
2595#endif
2596 XPUSHs (retval);
2597}
2598
2599ssize_t
2600splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2601 CODE:
2602{
2603#if HAVE_LINUX_SPLICE
2604 loff_t off_in_, off_out_;
2605 RETVAL = splice (
2606 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2607 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2608 length, flags
2609 );
2610#else
2611 RETVAL = EIO_ENOSYS ();
2612#endif
2613}
2614 OUTPUT:
2615 RETVAL
2616
2617ssize_t
2618tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2619 CODE:
2620#if HAVE_LINUX_SPLICE
2621 RETVAL = tee (rfh, wfh, length, flags);
2622#else
2623 RETVAL = EIO_ENOSYS ();
2624#endif
2625 OUTPUT:
2626 RETVAL
1314 2627
1315int 2628int
1316nreqs() 2629pipesize (aio_rfd rfh, int new_size = -1)
2630 PROTOTYPE: $;$
2631 CODE:
2632#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2633 if (new_size >= 0)
2634 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2635 else
2636 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2637#else
2638 errno = ENOSYS;
2639 RETVAL = -1;
2640#endif
2641 OUTPUT:
2642 RETVAL
2643
2644void
2645pipe2 (int flags = 0)
1317 PROTOTYPE: 2646 PROTOTYPE: ;$
2647 PPCODE:
2648{
2649 int fd[2];
2650 int res;
2651
2652 if (flags)
2653#if HAVE_PIPE2
2654 res = pipe2 (fd, flags);
2655#else
2656 res = (errno = ENOSYS, -1);
2657#endif
2658 else
2659 res = pipe (fd);
2660
2661 if (!res)
2662 {
2663 EXTEND (SP, 2);
2664 PUSHs (newmortalFH (fd[0], O_RDONLY));
2665 PUSHs (newmortalFH (fd[1], O_WRONLY));
2666 }
2667}
2668
2669void
2670pidfd_open (int pid, unsigned int flags = 0)
2671 PPCODE:
2672{
2673 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2674 int fd = syscall (SYS_pidfd_open, pid, flags);
2675 XPUSHs (newmortalFH (fd, O_RDWR));
2676}
2677
2678int
2679pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
2680 PPCODE:
2681{
2682 int res;
2683 siginfo_t si = { 0 };
2684
2685 if (SvOK (siginfo))
2686 {
2687 HV *hv;
2688 SV **svp;
2689
2690 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2691 croak ("siginfo argument must be a hashref code, pid, uid and value_int or value_ptr members, caught");
2692
2693 hv = (HV *)SvRV (siginfo);
2694
2695 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2696 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2697 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2698 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2699 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2700 }
2701
2702 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2703 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2704
2705 XPUSHs (sv_2mortal (newSViv (res)));
2706}
2707
2708void
2709pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2710 PPCODE:
2711{
2712 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2713 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2714 XPUSHs (newmortalFH (fd, O_RDWR));
2715}
2716
2717void
2718eventfd (unsigned int initval = 0, int flags = 0)
2719 PPCODE:
2720{
2721 int fd;
2722#if HAVE_EVENTFD
2723 fd = eventfd (initval, flags);
2724#else
2725 fd = (errno = ENOSYS, -1);
2726#endif
2727
2728 XPUSHs (newmortalFH (fd, O_RDWR));
2729}
2730
2731void
2732timerfd_create (int clockid, int flags = 0)
2733 PPCODE:
2734{
2735 int fd;
2736#if HAVE_TIMERFD
2737 fd = timerfd_create (clockid, flags);
2738#else
2739 fd = (errno = ENOSYS, -1);
2740#endif
2741
2742 XPUSHs (newmortalFH (fd, O_RDWR));
2743}
2744
2745void
2746timerfd_settime (SV *fh, int flags, NV interval, NV value)
2747 PPCODE:
2748{
2749 int fd = s_fileno_croak (fh, 0);
2750#if HAVE_TIMERFD
2751 int res;
2752 struct itimerspec its, ots;
2753
2754 ts_set (&its.it_interval, interval);
2755 ts_set (&its.it_value , value);
2756 res = timerfd_settime (fd, flags, &its, &ots);
2757
2758 if (!res)
2759 {
2760 EXTEND (SP, 2);
2761 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2762 PUSHs (newSVnv (ts_get (&ots.it_value)));
2763 }
2764#else
2765 errno = ENOSYS;
2766#endif
2767}
2768
2769void
2770timerfd_gettime (SV *fh)
2771 PPCODE:
2772{
2773 int fd = s_fileno_croak (fh, 0);
2774#if HAVE_TIMERFD
2775 int res;
2776 struct itimerspec ots;
2777 res = timerfd_gettime (fd, &ots);
2778
2779 if (!res)
2780 {
2781 EXTEND (SP, 2);
2782 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2783 PUSHs (newSVnv (ts_get (&ots.it_value)));
2784 }
2785#else
2786 errno = ENOSYS;
2787#endif
2788}
2789
2790void
2791memfd_create (SV8 *pathname, int flags = 0)
2792 PPCODE:
2793{
2794 int fd;
2795#if HAVE_MEMFD_CREATE
2796 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2797#else
2798 fd = (errno = ENOSYS, -1);
2799#endif
2800
2801 XPUSHs (newmortalFH (fd, O_RDWR));
2802}
2803
2804UV
2805get_fdlimit ()
1318 CODE: 2806 CODE:
1319 RETVAL = nreqs; 2807#if HAVE_RLIMITS
2808 struct rlimit rl;
2809 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2810 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2811#endif
2812 XSRETURN_UNDEF;
1320 OUTPUT: 2813 OUTPUT:
1321 RETVAL 2814 RETVAL
2815
2816void
2817min_fdlimit (UV limit = 0x7fffffffU)
2818 CODE:
2819{
2820#if HAVE_RLIMITS
2821 struct rlimit rl;
2822 rlim_t orig_rlim_max;
2823 UV bit;
2824
2825 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2826 goto fail;
2827
2828 if (rl.rlim_cur == RLIM_INFINITY)
2829 XSRETURN_YES;
2830
2831 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2832
2833 if (rl.rlim_cur < limit)
2834 {
2835 rl.rlim_cur = limit;
2836
2837 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2838 rl.rlim_max = rl.rlim_cur;
2839 }
2840
2841 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2842 XSRETURN_YES;
2843
2844 if (errno == EPERM)
2845 {
2846 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2847 /* our limit overflows a system-wide limit */
2848 /* try an adaptive algorithm, but do not lower the hardlimit */
2849 rl.rlim_max = 0;
2850 for (bit = 0x40000000U; bit; bit >>= 1)
2851 {
2852 rl.rlim_max |= bit;
2853 rl.rlim_cur = rl.rlim_max;
2854
2855 /* never decrease the hard limit */
2856 if (rl.rlim_max < orig_rlim_max)
2857 break;
2858
2859 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2860 rl.rlim_max &= ~bit; /* too high, remove bit again */
2861 }
2862
2863 /* now, raise the soft limit to the max permitted */
2864 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2865 {
2866 rl.rlim_cur = rl.rlim_max;
2867 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2868 errno = EPERM;
2869 }
2870 }
2871#endif
2872 fail:
2873 XSRETURN_UNDEF;
2874}
2875
2876void _on_next_submit (SV *cb)
2877 CODE:
2878 SvREFCNT_dec (on_next_submit);
2879 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1322 2880
1323PROTOTYPES: DISABLE 2881PROTOTYPES: DISABLE
1324 2882
2883MODULE = IO::AIO PACKAGE = IO::AIO::WD
2884
2885BOOT:
2886{
2887 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2888 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2889}
2890
2891void
2892DESTROY (SV *self)
2893 CODE:
2894{
2895 aio_wd wd = SvAIO_WD (self);
2896#if HAVE_AT
2897 {
2898 SV *callback = &PL_sv_undef;
2899 dREQ; /* clobbers next_pri :/ */
2900 next_pri = req->pri; /* restore next_pri */
2901 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2902 req->type = EIO_WD_CLOSE;
2903 req->wd = wd;
2904 REQ_SEND;
2905 }
2906#else
2907 eio_wd_close_sync (wd);
2908#endif
2909}
2910
1325MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2911MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1326 2912
1327void 2913void
1328cancel (aio_req_ornot req) 2914cancel (aio_req_ornot req)
1329 PROTOTYPE:
1330 CODE: 2915 CODE:
1331 req_cancel (req); 2916 eio_cancel (req);
1332 2917
1333void 2918void
1334cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2919cb (aio_req_ornot req, SV *callback = NO_INIT)
1335 CODE: 2920 PPCODE:
2921{
2922 if (GIMME_V != G_VOID)
2923 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2924
2925 if (items > 1)
2926 {
2927 SV *cb_cv = get_cb (callback);
2928
1336 SvREFCNT_dec (req->callback); 2929 SvREFCNT_dec (req->callback);
1337 req->callback = newSVsv (callback); 2930 req->callback = SvREFCNT_inc (cb_cv);
2931 }
2932}
1338 2933
1339MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2934MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1340 2935
1341void 2936void
1342add (aio_req grp, ...) 2937add (aio_req grp, ...)
1343 PPCODE: 2938 PPCODE:
1344{ 2939{
1345 int i; 2940 int i;
1346 aio_req req;
1347 2941
1348 if (grp->fd == 2) 2942 if (grp->int1 == 2)
1349 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2943 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1350 2944
1351 for (i = 1; i < items; ++i ) 2945 for (i = 1; i < items; ++i )
1352 { 2946 {
2947 aio_req req;
2948
1353 if (GIMME_V != G_VOID) 2949 if (GIMME_V != G_VOID)
1354 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2950 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1355 2951
1356 req = SvAIO_REQ (ST (i)); 2952 req = SvAIO_REQ (ST (i));
1357 2953
1358 if (req) 2954 if (req)
1359 { 2955 eio_grp_add (grp, req);
1360 ++grp->length;
1361 req->grp = grp;
1362
1363 req->grp_prev = 0;
1364 req->grp_next = grp->grp_first;
1365
1366 if (grp->grp_first)
1367 grp->grp_first->grp_prev = req;
1368
1369 grp->grp_first = req;
1370 }
1371 } 2956 }
1372} 2957}
2958
2959void
2960cancel_subs (aio_req_ornot req)
2961 CODE:
2962 req_cancel_subs (req);
1373 2963
1374void 2964void
1375result (aio_req grp, ...) 2965result (aio_req grp, ...)
1376 CODE: 2966 CODE:
1377{ 2967{
1378 int i; 2968 int i;
2969 AV *av;
2970
2971 grp->errorno = errno;
2972
1379 AV *av = newAV (); 2973 av = newAV ();
2974 av_extend (av, items - 1);
1380 2975
1381 for (i = 1; i < items; ++i ) 2976 for (i = 1; i < items; ++i )
1382 av_push (av, newSVsv (ST (i))); 2977 av_push (av, newSVsv (ST (i)));
1383 2978
1384 SvREFCNT_dec (grp->data); 2979 SvREFCNT_dec (grp->sv1);
1385 grp->data = (SV *)av; 2980 grp->sv1 = (SV *)av;
1386} 2981}
1387 2982
1388void 2983void
2984errno (aio_req grp, int errorno = errno)
2985 CODE:
2986 grp->errorno = errorno;
2987
2988void
1389feed_limit (aio_req grp, int limit) 2989limit (aio_req grp, int limit)
1390 CODE: 2990 CODE:
1391 grp->fd2 = limit; 2991 eio_grp_limit (grp, limit);
1392 aio_grp_feed (grp);
1393 2992
1394void 2993void
1395feed (aio_req grp, SV *callback=&PL_sv_undef) 2994feed (aio_req grp, SV *callback = &PL_sv_undef)
1396 CODE: 2995 CODE:
1397{ 2996{
1398 SvREFCNT_dec (grp->fh2); 2997 SvREFCNT_dec (grp->sv2);
1399 grp->fh2 = newSVsv (callback); 2998 grp->sv2 = newSVsv (callback);
2999 grp->feed = aio_grp_feed;
1400 3000
1401 if (grp->fd2 <= 0) 3001 if (grp->int2 <= 0)
1402 grp->fd2 = 2; 3002 grp->int2 = 2;
1403 3003
1404 aio_grp_feed (grp); 3004 eio_grp_limit (grp, grp->int2);
1405} 3005}
1406 3006

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