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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.29 by root, Wed Aug 17 06:12:10 2005 UTC vs.
Revision 1.295 by root, Mon Sep 5 00:03:32 2022 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
11# define mg_findext(sv,type,vtbl) mg_find (sv, type)
12#endif
9 13
14#include <stddef.h>
15#include <stdlib.h>
16#include <errno.h>
10#include <sys/types.h> 17#include <sys/types.h>
18#include <sys/socket.h>
11#include <sys/stat.h> 19#include <sys/stat.h>
12
13#include <unistd.h> 20#include <limits.h>
14#include <fcntl.h> 21#include <fcntl.h>
15#include <signal.h>
16#include <sched.h> 22#include <sched.h>
17 23
18#include <pthread.h> 24/* the incompetent fool that created musl keeps __linux__, refuses
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
19 37
20typedef void *InputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 38/* perl namespace pollution */
21typedef void *OutputStream; /* hack, but 5.6.1 is simply toooo old ;) */ 39#undef VERSION
22typedef void *InOutStream; /* hack, but 5.6.1 is simply toooo old ;) */
23 40
24#if __ia64 41/* perl stupidly overrides readdir and maybe others */
25# define STACKSIZE 65536 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
26#else 85#else
27# define STACKSIZE 4096 86
87 #include <sys/time.h>
88 #include <sys/select.h>
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
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
124# include <sys/uio.h>
125#endif
126
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
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
208# else
209# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
28#endif 210# endif
211#endif
29 212
30enum { 213#ifndef makedev
31 REQ_QUIT, 214# define makedev(maj,min) (((maj) << 8) | (min))
32 REQ_OPEN, REQ_CLOSE, 215#endif
33 REQ_READ, REQ_WRITE, REQ_READAHEAD, 216#ifndef major
34 REQ_STAT, REQ_LSTAT, REQ_FSTAT, 217# define major(dev) ((dev) >> 8)
35 REQ_FSYNC, REQ_FDATASYNC, 218#endif
36 REQ_UNLINK, REQ_RMDIR, 219#ifndef minor
37 REQ_SYMLINK, 220# define minor(dev) ((dev) & 0xff)
221#endif
222
223/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
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>
239#else
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
38}; 283};
39 284
40typedef struct aio_cb { 285static int ecb_cold
41 struct aio_cb *volatile next; 286sysfree_free (pTHX_ SV *sv, MAGIC *mg)
42
43 int type;
44
45 int fd;
46 off_t offset;
47 size_t length;
48 ssize_t result;
49 mode_t mode; /* open */
50 int errorno;
51 SV *data, *callback, *fh;
52 void *dataptr, *data2ptr;
53 STRLEN dataoffset;
54
55 Stat_t *statdata;
56} aio_cb;
57
58typedef aio_cb *aio_req;
59
60static int started;
61static volatile int nreqs;
62static int max_outstanding = 1<<30;
63static int respipe [2];
64
65static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
66static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
67static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
68
69static volatile aio_req reqs, reqe; /* queue start, queue end */
70static volatile aio_req ress, rese; /* queue start, queue end */
71
72static void free_req (aio_req req)
73{ 287{
74 if (req->data) 288 free (mg->mg_ptr);
75 SvREFCNT_dec (req->data); 289 mg->mg_obj = 0; /* just in case */
76 290
77 if (req->fh) 291 SvREADONLY_off (sv);
78 SvREFCNT_dec (req->fh);
79 292
80 if (req->statdata) 293 if (SvPVX (sv) != mg->mg_ptr)
81 Safefree (req->statdata); 294 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
82 295
83 if (req->callback) 296 SvCUR_set (sv, 0);
84 SvREFCNT_dec (req->callback); 297 SvPVX (sv) = 0;
298 SvOK_off (sv);
85 299
86 Safefree (req); 300 return 0;
87} 301}
88 302
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
89static void 311static void
90poll_wait () 312sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
91{ 313{
92 if (nreqs && !ress) 314 sv_force_normal (sv);
93 {
94 fd_set rfd;
95 FD_ZERO(&rfd);
96 FD_SET(respipe [0], &rfd);
97 315
98 select (respipe [0] + 1, &rfd, 0, 0, 0); 316 /* we store the length in mg_obj, as namlen is I32 :/ */
99 } 317 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
100} 318 ->mg_obj = (SV *)length;
101 319
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
102static int 331static void
103poll_cb () 332sv_clear_foreign (SV *sv)
104{ 333{
105 dSP; 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)
106 int count = 0; 363 count = 8;
107 int do_croak = 0; 364
108 aio_req req; 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);
109 393
110 for (;;) 394 for (;;)
111 { 395 {
112 pthread_mutex_lock (&reslock); 396 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
113 req = ress; 397 char scratch[3072];
398 struct fiemap *incmap = (struct fiemap *)scratch;
114 399
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;
115 if (req) 415 if (!fiemap)
416 return;
417
418 req->ptr1 = fiemap;
419
420 for (count = 0; count < incmap->fm_mapped_extents; ++count)
116 { 421 {
117 ress = req->next; 422 struct fiemap_extent *e = incmap->fm_extents + count;
118 423
119 if (!ress) 424 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
120 {
121 rese = 0;
122 425
123 /* read any signals sent by the worker threads */ 426 if (e->fe_logical >= end_offset)
124 char buf [32]; 427 goto done;
125 while (read (respipe [0], buf, 32) == 32) 428
126 ; 429 if (e->fe_flags & FIEMAP_EXTENT_LAST)
127 } 430 goto done;
431
128 } 432 }
433 }
129 434
130 pthread_mutex_unlock (&reslock); 435done:
436 req->result = 0;
131 437
132 if (!req) 438#else
133 break; 439 errno = ENOSYS;
440#endif
441}
134 442
135 nreqs--; 443/*****************************************************************************/
136 444
137 if (req->type == REQ_QUIT) 445static int close_fd; /* dummy fd to close fds via dup2 */
138 started--; 446
139 else 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()
454#endif
455
456enum {
457 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
458};
459
460typedef eio_req *aio_req;
461typedef eio_req *aio_req_ornot;
462typedef eio_wd aio_wd;
463
464static SV *on_next_submit;
465static int next_pri = EIO_PRI_DEFAULT;
466static int max_outstanding;
467
468static s_epipe respipe;
469
470static void req_destroy (aio_req req);
471static void req_cancel (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}
486
487/* must be called at most once */
488ecb_noinline
489static SV *
490req_sv (aio_req req, HV *stash)
491{
492 if (!req->self)
493 {
494 req->self = (SV *)newHV ();
495 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
496 }
497
498 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
499}
500
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)
510{
511 MAGIC *mg;
512
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")))
518 croak ("object of class IO::AIO::REQ expected");
519
520 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
521
522 return mg ? (aio_req)mg->mg_ptr : 0;
523}
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
562aio_grp_feed (aio_req grp)
563{
564 if (grp->sv2 && SvOK (grp->sv2))
565 {
566 dSP;
567
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))
140 { 618 {
141 int errorno = errno; 619 sv_result = sv_result_cache; sv_result_cache = 0;
142 errno = req->errorno; 620 SvIV_set (sv_result, req->result);
143 621 SvIOK_only (sv_result);
144 if (req->type == REQ_READ)
145 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
146
147 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
148 SvREADONLY_off (req->data);
149
150 if (req->statdata)
151 {
152 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
153 PL_laststatval = req->result;
154 PL_statcache = *(req->statdata);
155 }
156
157 ENTER;
158 PUSHMARK (SP);
159 XPUSHs (sv_2mortal (newSViv (req->result)));
160
161 if (req->type == REQ_OPEN)
162 {
163 /* convert fd to fh */
164 SV *fh;
165
166 PUTBACK;
167 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
168 SPAGAIN;
169
170 fh = SvREFCNT_inc (POPs);
171
172 PUSHMARK (SP);
173 XPUSHs (sv_2mortal (fh));
174 }
175
176 if (SvOK (req->callback))
177 {
178 PUTBACK;
179 call_sv (req->callback, G_VOID | G_EVAL);
180 SPAGAIN;
181
182 if (SvTRUE (ERRSV))
183 {
184 free_req (req);
185 croak (0);
186 }
187 }
188
189 LEAVE;
190
191 errno = errorno;
192 count++;
193 }
194
195 free_req (req);
196 }
197
198 return count;
199}
200
201static void *aio_proc(void *arg);
202
203static void
204start_thread (void)
205{
206 sigset_t fullsigset, oldsigset;
207 pthread_t tid;
208 pthread_attr_t attr;
209
210 pthread_attr_init (&attr);
211 pthread_attr_setstacksize (&attr, STACKSIZE);
212 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
213
214 sigfillset (&fullsigset);
215 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
216
217 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
218 started++;
219
220 sigprocmask (SIG_SETMASK, &oldsigset, 0);
221}
222
223static void
224send_req (aio_req req)
225{
226 nreqs++;
227
228 pthread_mutex_lock (&reqlock);
229
230 req->next = 0;
231
232 if (reqe)
233 {
234 reqe->next = req;
235 reqe = req;
236 }
237 else
238 reqe = reqs = req;
239
240 pthread_cond_signal (&reqwait);
241 pthread_mutex_unlock (&reqlock);
242
243 if (nreqs > max_outstanding)
244 for (;;)
245 {
246 poll_cb ();
247
248 if (nreqs <= max_outstanding)
249 break;
250
251 poll_wait ();
252 }
253}
254
255static void
256end_thread (void)
257{
258 aio_req req;
259 Newz (0, req, 1, aio_cb);
260 req->type = REQ_QUIT;
261
262 send_req (req);
263}
264
265static void min_parallel (int nthreads)
266{
267 while (nthreads > started)
268 start_thread ();
269}
270
271static void max_parallel (int nthreads)
272{
273 int cur = started;
274
275 while (cur > nthreads)
276 {
277 end_thread ();
278 cur--;
279 }
280
281 while (started > nthreads)
282 {
283 poll_wait ();
284 poll_cb ();
285 }
286}
287
288static void create_pipe ()
289{
290 if (pipe (respipe))
291 croak ("unable to initialize result pipe");
292
293 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
294 croak ("cannot set result pipe to nonblocking mode");
295
296 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
297 croak ("cannot set result pipe to nonblocking mode");
298}
299
300static void atfork_prepare (void)
301{
302 pthread_mutex_lock (&reqlock);
303 pthread_mutex_lock (&reslock);
304}
305
306static void atfork_parent (void)
307{
308 pthread_mutex_unlock (&reslock);
309 pthread_mutex_unlock (&reqlock);
310}
311
312static void atfork_child (void)
313{
314 aio_req prv;
315
316 int restart = started;
317 started = 0;
318
319 while (reqs)
320 {
321 prv = reqs;
322 reqs = prv->next;
323 free_req (prv);
324 }
325
326 reqs = reqe = 0;
327
328 while (ress)
329 {
330 prv = ress;
331 ress = prv->next;
332 free_req (prv);
333 }
334
335 ress = rese = 0;
336
337 close (respipe [0]);
338 close (respipe [1]);
339 create_pipe ();
340
341 atfork_parent ();
342
343 min_parallel (restart);
344}
345
346/*****************************************************************************/
347/* work around various missing functions */
348
349#if !HAVE_PREADWRITE
350# define pread aio_pread
351# define pwrite aio_pwrite
352
353/*
354 * make our pread/pwrite safe against themselves, but not against
355 * normal read/write by using a mutex. slows down execution a lot,
356 * but that's your problem, not mine.
357 */
358static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER;
359
360static ssize_t
361pread (int fd, void *buf, size_t count, off_t offset)
362{
363 ssize_t res;
364 off_t ooffset;
365
366 pthread_mutex_lock (&iolock);
367 ooffset = lseek (fd, 0, SEEK_CUR);
368 lseek (fd, offset, SEEK_SET);
369 res = read (fd, buf, count);
370 lseek (fd, ooffset, SEEK_SET);
371 pthread_mutex_unlock (&iolock);
372
373 return res;
374}
375
376static ssize_t
377pwrite (int fd, void *buf, size_t count, off_t offset)
378{
379 ssize_t res;
380 off_t ooffset;
381
382 pthread_mutex_lock (&iolock);
383 ooffset = lseek (fd, 0, SEEK_CUR);
384 lseek (fd, offset, SEEK_SET);
385 res = write (fd, buf, count);
386 lseek (fd, offset, SEEK_SET);
387 pthread_mutex_unlock (&iolock);
388
389 return res;
390}
391#endif
392
393#if !HAVE_FDATASYNC
394# define fdatasync fsync
395#endif
396
397#if !HAVE_READAHEAD
398# define readahead aio_readahead
399
400static char readahead_buf[4096];
401
402static ssize_t
403readahead (int fd, off_t offset, size_t count)
404{
405 while (count > 0)
406 {
407 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
408
409 pread (fd, readahead_buf, len, offset);
410 offset += len;
411 count -= len;
412 }
413
414 errno = 0;
415}
416#endif
417
418/*****************************************************************************/
419
420static void *
421aio_proc (void *thr_arg)
422{
423 aio_req req;
424 int type;
425
426 do
427 {
428 pthread_mutex_lock (&reqlock);
429
430 for (;;)
431 {
432 req = reqs;
433
434 if (reqs)
435 {
436 reqs = reqs->next;
437 if (!reqs) reqe = 0;
438 }
439
440 if (req)
441 break;
442
443 pthread_cond_wait (&reqwait, &reqlock);
444 }
445
446 pthread_mutex_unlock (&reqlock);
447
448 errno = 0; /* strictly unnecessary */
449
450 type = req->type;
451
452 switch (type)
453 {
454 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
455 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
456
457 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
458
459 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
460 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
461 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
462
463 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
464 case REQ_CLOSE: req->result = close (req->fd); break;
465 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
466 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
467 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
468
469 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
470 case REQ_FSYNC: req->result = fsync (req->fd); break;
471
472 case REQ_QUIT:
473 break;
474
475 default:
476 req->result = ENOSYS;
477 break;
478 }
479
480 req->errorno = errno;
481
482 pthread_mutex_lock (&reslock);
483
484 req->next = 0;
485
486 if (rese)
487 {
488 rese->next = req;
489 rese = req;
490 } 622 }
491 else 623 else
492 { 624 {
493 rese = ress = req; 625 sv_result = newSViv (req->result);
494 626 SvREADONLY_on (sv_result);
495 /* write a dummy byte to the pipe so fh becomes ready */
496 write (respipe [1], &respipe, 1);
497 } 627 }
498 628
499 pthread_mutex_unlock (&reslock); 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;
500 } 882 }
501 while (type != REQ_QUIT);
502 883
884 return !!SvTRUE (ERRSV);
885}
886
887static void
888req_destroy (aio_req req)
889{
890 if (req->self)
891 {
892 sv_unmagic (req->self, PERL_MAGIC_ext);
893 SvREFCNT_dec (req->self);
894 }
895
896 SvREFCNT_dec (req->sv1);
897 SvREFCNT_dec (req->sv2);
898 SvREFCNT_dec (req->sv3);
899 SvREFCNT_dec (req->sv4);
900 SvREFCNT_dec (req->callback);
901
902 free (req);
903}
904
905static void
906req_cancel_subs (aio_req grp)
907{
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 ())
929 {
930 int size;
931
932 X_LOCK (EIO_POOL->reslock);
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);
942 }
943}
944
945static int
946poll_cb (void)
947{
948 for (;;)
949 {
950 int res = eio_poll ();
951
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
503 return 0; 999 return req;
504} 1000}
505 1001
506#define dREQ \ 1002#define dREQ \
507 aio_req req; \ 1003 aio_req req = dreq (callback); \
1004
1005#define REQ_SEND \
1006 PUTBACK; \
1007 req_submit (req); \
1008 SPAGAIN; \
508 \ 1009 \
509 if (SvOK (callback) && !SvROK (callback)) \ 1010 if (GIMME_V != G_VOID) \
510 croak ("clalback must be undef or of reference type"); \ 1011 XPUSHs (req_sv (req, aio_req_stash));
511 \ 1012
512 Newz (0, req, 1, aio_cb); \ 1013/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
513 if (!req) \ 1014ecb_inline
514 croak ("out of memory during aio_req allocation"); \ 1015void
515 \ 1016req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
516 req->callback = newSVsv (callback); 1017{
517 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)
1024 {
1025 path = AvARRAY (rv)[1];
1026 wdob = AvARRAY (rv)[0];
1027
1028 if (SvOK (wdob))
1029 {
1030 *wd = SvAIO_WD (wdob);
1031 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
1032 }
1033 else
1034 *wd = EIO_INVALID_WD;
1035 }
1036 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
1037 {
1038 *wd = (aio_wd)(long)SvIVX (rv);
1039 *wdsv = SvREFCNT_inc_NN (rv);
1040 *ptr = ".";
1041 return; /* path set to "." */
1042 }
1043 else
1044 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
1045 }
1046
1047 *pathsv = newSVsv (path);
1048 *ptr = SvPVbyte_nolen (*pathsv);
1049}
1050
1051ecb_noinline
1052static void
1053req_set_path1 (aio_req req, SV *path)
1054{
1055 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
1056}
1057
1058ecb_noinline
1059static void
1060req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1061{
1062 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1063
1064 switch (SvTYPE (rv))
1065 {
1066 case SVt_PVIO:
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;
1078 }
1079}
1080
1081/*****************************************************************************/
1082
1083static void
1084ts_set (struct timespec *ts, NV value)
1085{
1086 ts->tv_sec = value;
1087 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
1088}
1089
1090static NV
1091ts_get (const struct timespec *ts)
1092{
1093 return ts->tv_sec + ts->tv_nsec * 1e-9;
1094}
1095
1096/*****************************************************************************/
1097
1098/* extract a ref-to-array of strings into a temporary c style string vector */
1099static char **
1100extract_stringvec (SV *sv, const char *croakmsg)
1101{
1102 if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)
1103 croak (croakmsg);
1104
1105 AV *av = (AV *)SvRV (sv);
1106 int i, nelem = av_len (av) + 1;
1107 char **vecp = (char **)SvPVX (sv_2mortal (newSV (sizeof (char *) * (nelem + 1))));
1108
1109 for (i = 0; i < nelem; ++i)
1110 {
1111 SV **e = av_fetch (av, i, 0);
1112
1113 if (e && *e)
1114 vecp[i] = SvPVbyte_nolen (*e);
1115 else
1116 vecp[i] = "";
1117 }
1118
1119 vecp[nelem] = 0;
1120
1121 return vecp;
1122}
1123
1124/*****************************************************************************/
1125
1126XS(boot_IO__AIO) ecb_cold;
1127
518MODULE = IO::AIO PACKAGE = IO::AIO 1128MODULE = IO::AIO PACKAGE = IO::AIO
519 1129
520PROTOTYPES: ENABLE 1130PROTOTYPES: ENABLE
521 1131
522BOOT: 1132BOOT:
523{ 1133{
524 create_pipe (); 1134 static const struct {
525 pthread_atfork (atfork_prepare, atfork_parent, atfork_child); 1135 const char *name;
526} 1136 IV iv;
1137 } *civ, const_iv[] = {
1138# define const_niv(name, value) { # name, (IV) value },
1139# define const_iv(name) { # name, (IV) name },
1140# define const_eio(name) { # name, (IV) EIO_ ## name },
527 1141
1142 /* you have to re-run ./gendef0 after adding/removing any constants here */
1143 /* the first block can be undef if missing */
1144 const_iv (ENOSYS)
1145 const_iv (EXDEV)
1146 const_iv (EBADR)
1147
1148 /* for lseek */
1149 const_iv (SEEK_DATA)
1150 const_iv (SEEK_HOLE)
1151
1152 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
1153 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
1154 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
1155 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
1156 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
1157 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
1158
1159 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1160 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1161 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1162 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1163 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
1164
1165 /* the second block will be 0 when missing */
1166 const_iv (O_ACCMODE)
1167
1168 const_iv (O_RDONLY)
1169 const_iv (O_WRONLY)
1170 const_iv (O_RDWR)
1171 const_iv (O_CREAT)
1172 const_iv (O_TRUNC)
1173 const_iv (O_EXCL)
1174 const_iv (O_APPEND)
1175
1176 const_iv (O_ASYNC)
1177 const_iv (O_DIRECT)
1178 const_iv (O_NOATIME)
1179
1180 const_iv (O_CLOEXEC)
1181 const_iv (O_NOCTTY)
1182 const_iv (O_NOFOLLOW)
1183 const_iv (O_NONBLOCK)
1184 const_iv (O_EXEC)
1185 const_iv (O_SEARCH)
1186 const_iv (O_DIRECTORY)
1187 const_iv (O_DSYNC)
1188 const_iv (O_RSYNC)
1189 const_iv (O_SYNC)
1190 const_iv (O_PATH)
1191 const_iv (O_TMPFILE)
1192 const_iv (O_TTY_INIT)
1193
1194 const_iv (S_IFIFO)
1195 const_iv (S_IFCHR)
1196 const_iv (S_IFBLK)
1197 const_iv (S_IFLNK)
1198 const_iv (S_IFREG)
1199 const_iv (S_IFDIR)
1200 const_iv (S_IFWHT)
1201 const_iv (S_IFSOCK)
1202 const_iv (S_IFMT)
1203
1204 const_iv (ST_RDONLY)
1205 const_iv (ST_NOSUID)
1206 const_iv (ST_NODEV)
1207 const_iv (ST_NOEXEC)
1208 const_iv (ST_SYNCHRONOUS)
1209 const_iv (ST_MANDLOCK)
1210 const_iv (ST_WRITE)
1211 const_iv (ST_APPEND)
1212 const_iv (ST_IMMUTABLE)
1213 const_iv (ST_NOATIME)
1214 const_iv (ST_NODIRATIME)
1215 const_iv (ST_RELATIME)
1216
1217 const_iv (PROT_NONE)
1218 const_iv (PROT_EXEC)
1219 const_iv (PROT_READ)
1220 const_iv (PROT_WRITE)
1221
1222 const_iv (MAP_PRIVATE)
1223 const_iv (MAP_SHARED)
1224 const_iv (MAP_FIXED)
1225 const_iv (MAP_ANONYMOUS)
1226
1227 /* linuxish */
1228 const_iv (MAP_LOCKED)
1229 const_iv (MAP_NORESERVE)
1230 const_iv (MAP_POPULATE)
1231 const_iv (MAP_NONBLOCK)
1232 const_iv (MAP_GROWSDOWN)
1233 const_iv (MAP_32BIT)
1234 const_iv (MAP_HUGETLB)
1235 const_iv (MAP_STACK)
1236 const_iv (MAP_FIXED_NOREPLACE)
1237 const_iv (MAP_SHARED_VALIDATE)
1238 const_iv (MAP_SYNC)
1239 const_iv (MAP_UNINITIALIZED)
1240
1241 const_iv (MREMAP_MAYMOVE)
1242 const_iv (MREMAP_FIXED)
1243
1244 const_iv (MSG_CMSG_CLOEXEC)
1245 const_iv (SOCK_CLOEXEC)
1246
1247 const_iv (F_DUPFD_CLOEXEC)
1248
1249 const_iv (F_ADD_SEALS)
1250 const_iv (F_GET_SEALS)
1251 const_iv (F_SEAL_SEAL)
1252 const_iv (F_SEAL_SHRINK)
1253 const_iv (F_SEAL_GROW)
1254 const_iv (F_SEAL_WRITE)
1255
1256 const_iv (F_OFD_GETLK)
1257 const_iv (F_OFD_SETLK)
1258 const_iv (F_OFD_GETLKW)
1259
1260 const_iv (FIFREEZE)
1261 const_iv (FITHAW)
1262 const_iv (FITRIM)
1263 const_iv (FICLONE)
1264 const_iv (FICLONERANGE)
1265 const_iv (FIDEDUPERANGE)
1266
1267 const_iv (FS_IOC_GETFLAGS)
1268 const_iv (FS_IOC_SETFLAGS)
1269 const_iv (FS_IOC_GETVERSION)
1270 const_iv (FS_IOC_SETVERSION)
1271 const_iv (FS_IOC_FIEMAP)
1272 const_iv (FS_IOC_FSGETXATTR)
1273 const_iv (FS_IOC_FSSETXATTR)
1274 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1275 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1276 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1277
1278 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1279
1280 const_iv (FS_SECRM_FL)
1281 const_iv (FS_UNRM_FL)
1282 const_iv (FS_COMPR_FL)
1283 const_iv (FS_SYNC_FL)
1284 const_iv (FS_IMMUTABLE_FL)
1285 const_iv (FS_APPEND_FL)
1286 const_iv (FS_NODUMP_FL)
1287 const_iv (FS_NOATIME_FL)
1288 const_iv (FS_DIRTY_FL)
1289 const_iv (FS_COMPRBLK_FL)
1290 const_iv (FS_NOCOMP_FL)
1291 const_iv (FS_ENCRYPT_FL)
1292 const_iv (FS_BTREE_FL)
1293 const_iv (FS_INDEX_FL)
1294 const_iv (FS_JOURNAL_DATA_FL)
1295 const_iv (FS_NOTAIL_FL)
1296 const_iv (FS_DIRSYNC_FL)
1297 const_iv (FS_TOPDIR_FL)
1298 const_iv (FS_FL_USER_MODIFIABLE)
1299
1300 const_iv (FS_XFLAG_REALTIME)
1301 const_iv (FS_XFLAG_PREALLOC)
1302 const_iv (FS_XFLAG_IMMUTABLE)
1303 const_iv (FS_XFLAG_APPEND)
1304 const_iv (FS_XFLAG_SYNC)
1305 const_iv (FS_XFLAG_NOATIME)
1306 const_iv (FS_XFLAG_NODUMP)
1307 const_iv (FS_XFLAG_RTINHERIT)
1308 const_iv (FS_XFLAG_PROJINHERIT)
1309 const_iv (FS_XFLAG_NOSYMLINKS)
1310 const_iv (FS_XFLAG_EXTSIZE)
1311 const_iv (FS_XFLAG_EXTSZINHERIT)
1312 const_iv (FS_XFLAG_NODEFRAG)
1313 const_iv (FS_XFLAG_FILESTREAM)
1314 const_iv (FS_XFLAG_DAX)
1315 const_iv (FS_XFLAG_HASATTR)
1316
1317 const_iv (FIEMAP_FLAG_SYNC)
1318 const_iv (FIEMAP_FLAG_XATTR)
1319 const_iv (FIEMAP_FLAGS_COMPAT)
1320 const_iv (FIEMAP_EXTENT_LAST)
1321 const_iv (FIEMAP_EXTENT_UNKNOWN)
1322 const_iv (FIEMAP_EXTENT_DELALLOC)
1323 const_iv (FIEMAP_EXTENT_ENCODED)
1324 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1325 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1326 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1327 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1328 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1329 const_iv (FIEMAP_EXTENT_MERGED)
1330 const_iv (FIEMAP_EXTENT_SHARED)
1331
1332 const_iv (SPLICE_F_MOVE)
1333 const_iv (SPLICE_F_NONBLOCK)
1334 const_iv (SPLICE_F_MORE)
1335 const_iv (SPLICE_F_GIFT)
1336
1337 const_iv (EFD_CLOEXEC)
1338 const_iv (EFD_NONBLOCK)
1339 const_iv (EFD_SEMAPHORE)
1340
1341 const_iv (MFD_CLOEXEC)
1342 const_iv (MFD_ALLOW_SEALING)
1343 const_iv (MFD_HUGETLB)
1344 const_iv (MFD_HUGETLB_2MB)
1345 const_iv (MFD_HUGETLB_1GB)
1346
1347 const_iv (CLOCK_REALTIME)
1348 const_iv (CLOCK_MONOTONIC)
1349 const_iv (CLOCK_BOOTTIME)
1350 const_iv (CLOCK_REALTIME_ALARM)
1351 const_iv (CLOCK_BOOTTIME_ALARM)
1352
1353 const_iv (TFD_NONBLOCK)
1354 const_iv (TFD_CLOEXEC)
1355
1356 const_iv (TFD_TIMER_ABSTIME)
1357 const_iv (TFD_TIMER_CANCEL_ON_SET)
1358
1359 const_iv (STATX_TYPE)
1360 const_iv (STATX_MODE)
1361 const_iv (STATX_NLINK)
1362 const_iv (STATX_UID)
1363 const_iv (STATX_GID)
1364 const_iv (STATX_ATIME)
1365 const_iv (STATX_MTIME)
1366 const_iv (STATX_CTIME)
1367 const_iv (STATX_INO)
1368 const_iv (STATX_SIZE)
1369 const_iv (STATX_BLOCKS)
1370 const_iv (STATX_BASIC_STATS)
1371 const_iv (STATX_ALL)
1372 const_iv (STATX_BTIME)
1373 const_iv (STATX_ATTR_COMPRESSED)
1374 const_iv (STATX_ATTR_IMMUTABLE)
1375 const_iv (STATX_ATTR_APPEND)
1376 const_iv (STATX_ATTR_NODUMP)
1377 const_iv (STATX_ATTR_ENCRYPTED)
1378 const_iv (STATX_ATTR_AUTOMOUNT)
1379
1380 const_iv (AT_FDCWD)
1381 const_iv (AT_SYMLINK_NOFOLLOW)
1382 const_iv (AT_EACCESS)
1383 const_iv (AT_REMOVEDIR)
1384 const_iv (AT_SYMLINK_FOLLOW)
1385 const_iv (AT_NO_AUTOMOUNT)
1386 const_iv (AT_EMPTY_PATH)
1387 const_iv (AT_STATX_SYNC_TYPE)
1388 const_iv (AT_STATX_AS_STAT)
1389 const_iv (AT_STATX_FORCE_SYNC)
1390 const_iv (AT_STATX_DONT_SYNC)
1391 const_iv (AT_RECURSIVE)
1392
1393 const_iv (OPEN_TREE_CLONE)
1394
1395 const_iv (FSOPEN_CLOEXEC)
1396
1397 const_iv (FSPICK_CLOEXEC)
1398 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1399 const_iv (FSPICK_NO_AUTOMOUNT)
1400 const_iv (FSPICK_EMPTY_PATH)
1401
1402 const_iv (MOVE_MOUNT_F_SYMLINKS)
1403 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1404 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1405 const_iv (MOVE_MOUNT_T_SYMLINKS)
1406 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1407 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1408
1409 /* waitid */
1410 const_iv (P_PID)
1411 const_iv (P_PIDFD)
1412 const_iv (P_PGID)
1413 const_iv (P_ALL)
1414
1415 const_iv (FSCONFIG_SET_FLAG)
1416 const_iv (FSCONFIG_SET_STRING)
1417 const_iv (FSCONFIG_SET_BINARY)
1418 const_iv (FSCONFIG_SET_PATH)
1419 const_iv (FSCONFIG_SET_PATH_EMPTY)
1420 const_iv (FSCONFIG_SET_FD)
1421 const_iv (FSCONFIG_CMD_CREATE)
1422 const_iv (FSCONFIG_CMD_RECONFIGURE)
1423
1424 const_iv (MOUNT_ATTR_RDONLY)
1425 const_iv (MOUNT_ATTR_NOSUID)
1426 const_iv (MOUNT_ATTR_NODEV)
1427 const_iv (MOUNT_ATTR_NOEXEC)
1428 const_iv (MOUNT_ATTR__ATIME)
1429 const_iv (MOUNT_ATTR_RELATIME)
1430 const_iv (MOUNT_ATTR_NOATIME)
1431 const_iv (MOUNT_ATTR_STRICTATIME)
1432 const_iv (MOUNT_ATTR_NODIRATIME)
1433
1434 /* these are libeio constants, and are independent of gendef0 */
1435 const_eio (SEEK_SET)
1436 const_eio (SEEK_CUR)
1437 const_eio (SEEK_END)
1438
1439 const_eio (MCL_FUTURE)
1440 const_eio (MCL_CURRENT)
1441 const_eio (MCL_ONFAULT)
1442
1443 const_eio (MS_ASYNC)
1444 const_eio (MS_INVALIDATE)
1445 const_eio (MS_SYNC)
1446
1447 const_eio (MT_MODIFY)
1448
1449 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1450 const_eio (SYNC_FILE_RANGE_WRITE)
1451 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1452
1453 const_eio (FALLOC_FL_KEEP_SIZE)
1454 const_eio (FALLOC_FL_PUNCH_HOLE)
1455 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1456 const_eio (FALLOC_FL_ZERO_RANGE)
1457 const_eio (FALLOC_FL_INSERT_RANGE)
1458 const_eio (FALLOC_FL_UNSHARE_RANGE)
1459
1460 const_eio (RENAME_NOREPLACE)
1461 const_eio (RENAME_EXCHANGE)
1462 const_eio (RENAME_WHITEOUT)
1463
1464 const_eio (READDIR_DENTS)
1465 const_eio (READDIR_DIRS_FIRST)
1466 const_eio (READDIR_STAT_ORDER)
1467 const_eio (READDIR_FOUND_UNKNOWN)
1468
1469 const_eio (DT_UNKNOWN)
1470 const_eio (DT_FIFO)
1471 const_eio (DT_CHR)
1472 const_eio (DT_DIR)
1473 const_eio (DT_BLK)
1474 const_eio (DT_REG)
1475 const_eio (DT_LNK)
1476 const_eio (DT_SOCK)
1477 const_eio (DT_WHT)
1478 };
1479
1480 aio_stash = gv_stashpv ("IO::AIO" , 1);
1481 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1482 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1483 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1484
1485 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1486 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1487
1488 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1489
1490 /* allocate dummy pipe fd for aio_close */
1491 {
1492 int pipefd [2];
1493
1494 if (
1495#ifdef _WIN32
1496 _pipe (pipefd, 1, _O_BINARY) < 0
1497#else
1498 pipe (pipefd) < 0
1499 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1500#endif
1501 || close (pipefd [1]) < 0
1502 )
1503 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1504
1505 close_fd = pipefd [0];
1506 }
1507
1508 reinit ();
1509}
1510
528void 1511void
529min_parallel(nthreads) 1512reinit ()
530 int nthreads 1513 PROTOTYPE:
1514
1515void
1516max_poll_reqs (unsigned int nreqs)
531 PROTOTYPE: $ 1517 PROTOTYPE: $
1518 CODE:
1519 eio_set_max_poll_reqs (nreqs);
532 1520
533void 1521void
534max_parallel(nthreads) 1522max_poll_time (double nseconds)
535 int nthreads
536 PROTOTYPE: $ 1523 PROTOTYPE: $
537
538int
539max_outstanding(nreqs)
540 int nreqs
541 PROTOTYPE: $
542 CODE: 1524 CODE:
543 RETVAL = max_outstanding; 1525 eio_set_max_poll_time (nseconds);
1526
1527void
1528min_parallel (unsigned int nthreads)
1529 PROTOTYPE: $
1530 CODE:
1531 eio_set_min_parallel (nthreads);
1532
1533void
1534max_parallel (unsigned int nthreads)
1535 PROTOTYPE: $
1536 CODE:
1537 eio_set_max_parallel (nthreads);
1538
1539void
1540max_idle (unsigned int nthreads)
1541 PROTOTYPE: $
1542 CODE:
1543 eio_set_max_idle (nthreads);
1544
1545void
1546idle_timeout (unsigned int seconds)
1547 PROTOTYPE: $
1548 CODE:
1549 eio_set_idle_timeout (seconds);
1550
1551void
1552max_outstanding (unsigned int maxreqs)
1553 PROTOTYPE: $
1554 CODE:
544 max_outstanding = nreqs; 1555 max_outstanding = maxreqs;
545 1556
546void 1557void
547aio_open(pathname,flags,mode,callback=&PL_sv_undef) 1558aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
548 SV * pathname
549 int flags
550 int mode
551 SV * callback
552 PROTOTYPE: $$$;$
553 CODE: 1559 PPCODE:
554{ 1560{
555 dREQ; 1561 dREQ;
556 1562
1563 req->type = EIO_WD_OPEN;
1564 req_set_path1 (req, pathname);
1565
1566 REQ_SEND;
1567}
1568
1569void
1570aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1571 PPCODE:
1572{
1573 dREQ;
1574
557 req->type = REQ_OPEN; 1575 req->type = EIO_OPEN;
558 req->data = newSVsv (pathname); 1576 req_set_path1 (req, pathname);
559 req->dataptr = SvPVbyte_nolen (req->data);
560 req->fd = flags; 1577 req->int1 = flags;
561 req->mode = mode; 1578 req->int2 = mode;
562 1579
563 send_req (req); 1580 REQ_SEND;
564} 1581}
565 1582
566void 1583void
567aio_close(fh,callback=&PL_sv_undef) 1584aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
568 SV * fh
569 SV * callback
570 PROTOTYPE: $;$
571 ALIAS: 1585 ALIAS:
572 aio_close = REQ_CLOSE
573 aio_fsync = REQ_FSYNC 1586 aio_fsync = EIO_FSYNC
574 aio_fdatasync = REQ_FDATASYNC 1587 aio_fdatasync = EIO_FDATASYNC
1588 aio_syncfs = EIO_SYNCFS
575 CODE: 1589 PPCODE:
576{ 1590{
1591 int fd = s_fileno_croak (fh, 0);
577 dREQ; 1592 dREQ;
578 1593
579 req->type = ix; 1594 req->type = ix;
580 req->fh = newSVsv (fh); 1595 req->sv1 = newSVsv (fh);
581 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1596 req->int1 = fd;
582 1597
583 send_req (req); 1598 REQ_SEND;
584} 1599}
585 1600
586void 1601void
1602aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1603 PPCODE:
1604{
1605 int fd = s_fileno_croak (fh, 0);
1606 dREQ;
1607
1608 req->type = EIO_SYNC_FILE_RANGE;
1609 req->sv1 = newSVsv (fh);
1610 req->int1 = fd;
1611 req->offs = offset;
1612 req->size = nbytes;
1613 req->int2 = flags;
1614
1615 REQ_SEND;
1616}
1617
1618void
1619aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1620 PPCODE:
1621{
1622 int fd = s_fileno_croak (fh, 0);
1623 dREQ;
1624
1625 req->type = EIO_FALLOCATE;
1626 req->sv1 = newSVsv (fh);
1627 req->int1 = fd;
1628 req->int2 = mode;
1629 req->offs = offset;
1630 req->size = len;
1631
1632 REQ_SEND;
1633}
1634
1635void
1636aio_close (SV *fh, SV *callback = &PL_sv_undef)
1637 PPCODE:
1638{
1639 int fd = s_fileno_croak (fh, 0);
1640 dREQ;
1641#if 0
1642 /* partially duplicate logic in s_fileno */
1643 SvGETMAGIC (fh);
1644
1645 if (SvROK (fh))
1646 {
1647 fh = SvRV (fh);
1648 SvGETMAGIC (fh);
1649 }
1650
1651 if (SvTYPE (fh) == SVt_PVGV)
1652 {
1653 /* perl filehandle */
1654 PerlIOUnix_refcnt_inc (fd);
1655 do_close ((GV *)fh, 1);
1656
1657 req->type = EIO_CLOSE;
1658 req->int1 = fd;
1659 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1660 }
1661 else
1662#endif
1663 {
1664 /* fd number */
1665 req->type = EIO_DUP2;
1666 req->int1 = close_fd;
1667 req->sv2 = newSVsv (fh);
1668 req->int2 = fd;
1669 }
1670
1671 REQ_SEND;
1672}
1673
1674void
1675aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1676 PPCODE:
1677{
1678 int fd = s_fileno_croak (fh, 0);
1679 dREQ;
1680
1681 req->type = EIO_SEEK;
1682 req->sv1 = newSVsv (fh);
1683 req->int1 = fd;
1684 req->offs = SvVAL64 (offset);
1685 req->int2 = whence;
1686
1687 REQ_SEND;
1688}
1689
1690void
587aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1691aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
588 SV * fh
589 UV offset
590 IV length
591 SV * data
592 IV dataoffset
593 SV * callback
594 ALIAS: 1692 ALIAS:
595 aio_read = REQ_READ 1693 aio_read = EIO_READ
596 aio_write = REQ_WRITE 1694 aio_write = EIO_WRITE
597 PROTOTYPE: $$$$$;$
598 CODE: 1695 PPCODE:
599{ 1696{
600 aio_req req;
601 STRLEN svlen; 1697 STRLEN svlen;
1698 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
602 char *svptr = SvPVbyte (data, svlen); 1699 char *svptr = SvPVbyte (data, svlen);
603 1700 UV len = SvUV (length);
604 SvUPGRADE (data, SVt_PV);
605 SvPOK_on (data);
606 1701
607 if (dataoffset < 0) 1702 if (dataoffset < 0)
608 dataoffset += svlen; 1703 dataoffset += svlen;
609 1704
610 if (dataoffset < 0 || dataoffset > svlen) 1705 if (dataoffset < 0 || dataoffset > svlen)
611 croak ("data offset outside of string"); 1706 croak ("dataoffset outside of data scalar");
612 1707
613 if (ix == REQ_WRITE) 1708 if (ix == EIO_WRITE)
614 { 1709 {
615 /* write: check length and adjust. */ 1710 /* write: check length and adjust. */
616 if (length < 0 || length + dataoffset > svlen) 1711 if (!SvOK (length) || len + dataoffset > svlen)
617 length = svlen - dataoffset; 1712 len = svlen - dataoffset;
618 } 1713 }
619 else 1714 else
620 { 1715 {
621 /* read: grow scalar as necessary */ 1716 /* read: check type and grow scalar as necessary */
1717 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
622 svptr = SvGROW (data, length + dataoffset); 1718 svptr = sv_grow (data, len + dataoffset + 1);
1719 else if (SvCUR (data) < len + dataoffset)
1720 croak ("length + dataoffset outside of scalar, and cannot grow");
623 } 1721 }
624
625 if (length < 0)
626 croak ("length must not be negative");
627 1722
628 { 1723 {
629 dREQ; 1724 dREQ;
630 1725
631 req->type = ix; 1726 req->type = ix;
632 req->fh = newSVsv (fh); 1727 req->sv1 = newSVsv (fh);
633 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1728 req->int1 = fd;
634 : IoOFP (sv_2io (fh))); 1729 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
635 req->offset = offset; 1730 req->size = len;
636 req->length = length;
637 req->data = SvREFCNT_inc (data); 1731 req->sv2 = SvREFCNT_inc (data);
638 req->dataptr = (char *)svptr + dataoffset; 1732 req->ptr2 = (char *)svptr + dataoffset;
1733 req->stroffset = dataoffset;
639 1734
640 if (!SvREADONLY (data)) 1735 if (!SvREADONLY (data))
641 { 1736 {
642 SvREADONLY_on (data); 1737 SvREADONLY_on (data);
643 req->data2ptr = (void *)data; 1738 req->flags |= FLAG_SV2_RO_OFF;
644 } 1739 }
645 1740
646 send_req (req); 1741 REQ_SEND;
647 } 1742 }
648} 1743}
649 1744
650void 1745void
651aio_readahead(fh,offset,length,callback=&PL_sv_undef) 1746aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
652 SV * fh
653 UV offset
654 IV length
655 SV * callback
656 PROTOTYPE: $$$;$
657 CODE:
658{
659 dREQ;
660
661 req->type = REQ_READAHEAD;
662 req->fh = newSVsv (fh);
663 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
664 req->offset = offset;
665 req->length = length;
666
667 send_req (req);
668}
669
670void
671aio_stat(fh_or_path,callback=&PL_sv_undef)
672 SV * fh_or_path
673 SV * callback
674 ALIAS: 1747 ALIAS:
675 aio_stat = REQ_STAT 1748 aio_ioctl = EIO_IOCTL
676 aio_lstat = REQ_LSTAT 1749 aio_fcntl = EIO_FCNTL
677 CODE: 1750 PPCODE:
678{ 1751{
679 dREQ; 1752 int fd = s_fileno_croak (fh, 0);
1753 char *svptr;
680 1754
681 New (0, req->statdata, 1, Stat_t); 1755 if (SvPOK (arg) || !SvNIOK (arg))
682 if (!req->statdata)
683 { 1756 {
684 free_req (req); 1757 STRLEN svlen;
685 croak ("out of memory during aio_req->statdata allocation"); 1758 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
686 } 1759#ifdef IOCPARM_LEN
1760 STRLEN need = IOCPARM_LEN (request);
1761#else
1762 STRLEN need = 256;
1763#endif
687 1764
688 if (SvPOK (fh_or_path)) 1765 if (svlen < need)
689 { 1766 svptr = SvGROW (arg, need);
690 req->type = ix;
691 req->data = newSVsv (fh_or_path);
692 req->dataptr = SvPVbyte_nolen (req->data);
693 } 1767 }
694 else 1768 else
1769 svptr = (char *)SvIV (arg);
1770
695 { 1771 {
1772 dREQ;
1773
696 req->type = REQ_FSTAT; 1774 req->type = ix;
697 req->fh = newSVsv (fh_or_path); 1775 req->sv1 = newSVsv (fh);
698 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1776 req->int1 = fd;
1777 req->int2 = (long)request;
1778 req->sv2 = SvREFCNT_inc (arg);
1779 req->ptr2 = svptr;
1780
1781 REQ_SEND;
699 } 1782 }
700
701 send_req (req);
702} 1783}
703 1784
704void 1785void
705aio_unlink(pathname,callback=&PL_sv_undef) 1786aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
706 SV * pathname
707 SV * callback
708 ALIAS: 1787 ALIAS:
709 aio_unlink = REQ_UNLINK 1788 aio_readlink = EIO_READLINK
710 aio_rmdir = REQ_RMDIR 1789 aio_realpath = EIO_REALPATH
1790 PPCODE:
1791{
1792 dREQ;
1793
1794 req->type = ix;
1795 req_set_path1 (req, pathname);
1796
1797 REQ_SEND;
1798}
1799
1800void
1801aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1802 PPCODE:
1803{
1804 int ifd = s_fileno_croak (in_fh , 0);
1805 int ofd = s_fileno_croak (out_fh, 1);
1806 dREQ;
1807
1808 req->type = EIO_SENDFILE;
1809 req->sv1 = newSVsv (out_fh);
1810 req->int1 = ofd;
1811 req->sv2 = newSVsv (in_fh);
1812 req->int2 = ifd;
1813 req->offs = in_offset;
1814 req->size = length;
1815
1816 REQ_SEND;
1817}
1818
1819void
1820aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1821 PPCODE:
1822{
1823 int fd = s_fileno_croak (fh, 0);
1824 dREQ;
1825
1826 req->type = EIO_READAHEAD;
1827 req->sv1 = newSVsv (fh);
1828 req->int1 = fd;
1829 req->offs = offset;
1830 req->size = length;
1831
1832 REQ_SEND;
1833}
1834
1835void
1836aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1837 ALIAS:
1838 aio_stat = EIO_STAT
1839 aio_lstat = EIO_LSTAT
1840 aio_statvfs = EIO_STATVFS
1841 PPCODE:
1842{
1843 dREQ;
1844
1845 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1846
1847 REQ_SEND;
1848}
1849
1850void
1851st_xtime ()
1852 ALIAS:
1853 st_atime = 0x01
1854 st_mtime = 0x02
1855 st_ctime = 0x04
1856 st_btime = 0x08
1857 st_xtime = 0x0f
1858 PPCODE:
1859 EXTEND (SP, 4);
1860 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1861 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1862 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1863 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1864
1865void
1866st_xtimensec ()
1867 ALIAS:
1868 st_atimensec = 0x01
1869 st_mtimensec = 0x02
1870 st_ctimensec = 0x04
1871 st_btimensec = 0x08
1872 st_xtimensec = 0x0f
1873 st_btimesec = 0x10
1874 st_gen = 0x20
1875 PPCODE:
1876 EXTEND (SP, 4);
1877 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1878 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1879 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1880 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1881 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1882 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1883
1884UV
1885major (UV dev)
1886 ALIAS:
1887 minor = 1
711 CODE: 1888 CODE:
1889 RETVAL = ix ? minor (dev) : major (dev);
1890 OUTPUT:
1891 RETVAL
1892
1893UV
1894makedev (UV maj, UV min)
1895 CODE:
1896 RETVAL = makedev (maj, min);
1897 OUTPUT:
1898 RETVAL
1899
1900void
1901aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1902 PPCODE:
1903{
1904 dREQ;
1905
1906 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1907 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1908 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1909
1910 REQ_SEND;
1911}
1912
1913void
1914aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1915 PPCODE:
1916{
1917 dREQ;
1918
1919 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1920 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1921
1922 REQ_SEND;
1923}
1924
1925void
1926aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1927 PPCODE:
1928{
1929 dREQ;
1930
1931 req->int2 = mode;
1932 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1933
1934 REQ_SEND;
1935}
1936
1937void
1938aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1939 PPCODE:
1940{
1941 dREQ;
1942
1943 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1944 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1945 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1946
1947 REQ_SEND;
1948}
1949
1950void
1951aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1952 PPCODE:
1953{
1954 dREQ;
1955
1956 req->type = EIO_READDIR;
1957 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1958
1959 if (flags & EIO_READDIR_DENTS)
1960 req->int1 |= EIO_READDIR_CUSTOM2;
1961
1962 req_set_path1 (req, pathname);
1963
1964 REQ_SEND;
1965}
1966
1967void
1968aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1969 PPCODE:
1970{
1971 dREQ;
1972
1973 req->type = EIO_MKDIR;
1974 req->int2 = mode;
1975 req_set_path1 (req, pathname);
1976
1977 REQ_SEND;
1978}
1979
1980void
1981aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1982 ALIAS:
1983 aio_unlink = EIO_UNLINK
1984 aio_rmdir = EIO_RMDIR
1985 aio_readdir = EIO_READDIR
1986 PPCODE:
712{ 1987{
713 dREQ; 1988 dREQ;
714 1989
715 req->type = ix; 1990 req->type = ix;
716 req->data = newSVsv (pathname); 1991 req_set_path1 (req, pathname);
717 req->dataptr = SvPVbyte_nolen (req->data);
718
719 send_req (req);
720}
721 1992
1993 REQ_SEND;
1994}
1995
722void 1996void
723aio_symlink(oldpath,newpath,callback=&PL_sv_undef) 1997aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
724 SV * oldpath 1998 ALIAS:
725 SV * newpath 1999 aio_link = EIO_LINK
726 SV * callback 2000 aio_symlink = EIO_SYMLINK
2001 aio_rename = EIO_RENAME
727 CODE: 2002 PPCODE:
728{ 2003{
2004 eio_wd wd2 = 0;
729 dREQ; 2005 dREQ;
730 2006
731 req->type = REQ_SYMLINK; 2007 req->type = ix;
732 req->fh = newSVsv (oldpath); 2008 req_set_path1 (req, oldpath);
733 req->data2ptr = SvPVbyte_nolen (req->fh); 2009 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
734 req->data = newSVsv (newpath); 2010 req->int3 = (long)wd2;
735 req->dataptr = SvPVbyte_nolen (req->data);
736 2011
737 send_req (req); 2012 REQ_SEND;
738} 2013}
739 2014
740void 2015void
741flush() 2016aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
742 PROTOTYPE: 2017 PPCODE:
2018{
2019 eio_wd wd2 = 0;
2020 dREQ;
2021
2022 req->type = EIO_RENAME;
2023 req_set_path1 (req, oldpath);
2024 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
2025 req->int2 = flags;
2026 req->int3 = (long)wd2;
2027
2028 REQ_SEND;
2029}
2030
2031void
2032aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
2033 PPCODE:
2034{
2035 dREQ;
2036
2037 req->type = EIO_MKNOD;
2038 req->int2 = (mode_t)mode;
2039 req->offs = dev;
2040 req_set_path1 (req, pathname);
2041
2042 REQ_SEND;
2043}
2044
2045void
2046aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
2047 ALIAS:
2048 aio_mtouch = EIO_MTOUCH
2049 aio_msync = EIO_MSYNC
2050 PPCODE:
2051{
2052 STRLEN svlen;
2053 char *svptr = SvPVbyte (data, svlen);
2054 UV len = SvUV (length);
2055
2056 if (flags < 0)
2057 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
2058
2059 if (offset < 0)
2060 offset += svlen;
2061
2062 if (offset < 0 || offset > svlen)
2063 croak ("offset outside of scalar");
2064
2065 if (!SvOK (length) || len + offset > svlen)
2066 len = svlen - offset;
2067
2068 {
2069 dREQ;
2070
2071 req->type = ix;
2072 req->sv2 = SvREFCNT_inc (data);
2073 req->ptr2 = (char *)svptr + offset;
2074 req->size = len;
2075 req->int1 = flags;
2076
2077 REQ_SEND;
2078 }
2079}
2080
2081void
2082aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2083 PPCODE:
2084{
2085 STRLEN svlen;
2086 char *svptr = SvPVbyte (data, svlen);
2087 UV len = SvUV (length);
2088
2089 if (offset < 0)
2090 offset += svlen;
2091
2092 if (offset < 0 || offset > svlen)
2093 croak ("offset outside of scalar");
2094
2095 if (!SvOK (length) || len + offset > svlen)
2096 len = svlen - offset;
2097
2098 {
2099 dREQ;
2100
2101 req->type = EIO_MLOCK;
2102 req->sv2 = SvREFCNT_inc (data);
2103 req->ptr2 = (char *)svptr + offset;
2104 req->size = len;
2105
2106 REQ_SEND;
2107 }
2108}
2109
2110void
2111aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2112 PPCODE:
2113{
2114 dREQ;
2115
2116 req->type = EIO_MLOCKALL;
2117 req->int1 = flags;
2118
2119 REQ_SEND;
2120}
2121
2122void
2123aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2124 PPCODE:
2125{
2126 int fd = s_fileno_croak (fh, 0);
2127 dREQ;
2128
2129 req->type = EIO_CUSTOM;
2130 req->sv1 = newSVsv (fh);
2131 req->int1 = fd;
2132
2133 req->feed = fiemap;
2134#if HAVE_FIEMAP
2135 /* keep our fingers crossed that the next two types are 64 bit */
2136 req->offs = start;
2137 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2138 req->int2 = flags;
2139 req->int3 = SvOK (count) ? SvIV (count) : -1;
2140#endif
2141
2142 REQ_SEND;
2143}
2144
2145void
2146aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
2147 PPCODE:
2148{
2149 char *svptr = 0;
2150
2151 sv_clear_foreign (data);
2152
2153 if (length) /* known length, directly read into scalar */
2154 {
2155 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2156 svptr = sv_grow (data, length + 1);
2157 else if (SvCUR (data) < length)
2158 croak ("length outside of scalar, and cannot grow");
2159 else
2160 svptr = SvPVbyte_nolen (data);
2161 }
2162
2163 {
2164 dREQ;
2165
2166 req->type = EIO_SLURP;
2167 req_set_path1 (req, pathname);
2168 req->offs = offset;
2169 req->size = length;
2170 req->sv2 = SvREFCNT_inc (data);
2171 req->ptr2 = svptr;
2172
2173 if (!SvREADONLY (data))
2174 {
2175 SvREADONLY_on (data);
2176 req->flags |= FLAG_SV2_RO_OFF;
2177 }
2178
2179 REQ_SEND;
2180 }
2181}
2182
2183void
2184aio_busy (double delay, SV *callback = &PL_sv_undef)
2185 PPCODE:
2186{
2187 dREQ;
2188
2189 req->type = EIO_BUSY;
2190 req->nv1 = delay < 0. ? 0. : delay;
2191
2192 REQ_SEND;
2193}
2194
2195void
2196aio_group (SV *callback = &PL_sv_undef)
2197 PPCODE:
2198{
2199 dREQ;
2200
2201 req->type = EIO_GROUP;
2202
2203 PUTBACK;
2204 req_submit (req);
2205 SPAGAIN;
2206
2207 XPUSHs (req_sv (req, aio_grp_stash));
2208}
2209
2210void
2211aio_nop (SV *callback = &PL_sv_undef)
2212 ALIAS:
2213 aio_nop = EIO_NOP
2214 aio_sync = EIO_SYNC
2215 PPCODE:
2216{
2217 dREQ;
2218
2219 req->type = ix;
2220
2221 REQ_SEND;
2222}
2223
2224int
2225aioreq_pri (int pri = NO_INIT)
743 CODE: 2226 CODE:
2227 RETVAL = next_pri;
2228 if (items > 0)
2229 {
2230 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
2231 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
2232 next_pri = pri;
2233 }
2234 OUTPUT:
2235 RETVAL
2236
2237void
2238aioreq_nice (int nice = 0)
2239 CODE:
2240 nice = next_pri - nice;
2241 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
2242 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
2243 next_pri = nice;
2244
2245void
2246flush ()
2247 CODE:
744 while (nreqs) 2248 while (eio_nreqs ())
745 { 2249 {
746 poll_wait (); 2250 poll_wait ();
747 poll_cb (); 2251 poll_cb ();
748 } 2252 }
749 2253
750void 2254int
751poll() 2255poll ()
752 PROTOTYPE:
753 CODE: 2256 CODE:
754 if (nreqs)
755 {
756 poll_wait (); 2257 poll_wait ();
757 poll_cb (); 2258 RETVAL = poll_cb ();
758 }
759
760int
761poll_fileno()
762 PROTOTYPE:
763 CODE:
764 RETVAL = respipe [0];
765 OUTPUT: 2259 OUTPUT:
766 RETVAL 2260 RETVAL
767 2261
768int 2262int
2263poll_fileno ()
2264 CODE:
2265 RETVAL = s_epipe_fd (&respipe);
2266 OUTPUT:
2267 RETVAL
2268
2269int
769poll_cb(...) 2270poll_cb (...)
770 PROTOTYPE: 2271 PROTOTYPE:
771 CODE: 2272 CODE:
772 RETVAL = poll_cb (); 2273 RETVAL = poll_cb ();
773 OUTPUT: 2274 OUTPUT:
774 RETVAL 2275 RETVAL
775 2276
776void 2277void
777poll_wait() 2278poll_wait ()
2279 CODE:
2280 poll_wait ();
2281
2282int
2283nreqs ()
2284 CODE:
2285 RETVAL = eio_nreqs ();
2286 OUTPUT:
2287 RETVAL
2288
2289int
2290nready ()
2291 CODE:
2292 RETVAL = eio_nready ();
2293 OUTPUT:
2294 RETVAL
2295
2296int
2297npending ()
2298 CODE:
2299 RETVAL = eio_npending ();
2300 OUTPUT:
2301 RETVAL
2302
2303int
2304nthreads ()
2305 CODE:
2306 RETVAL = eio_nthreads ();
2307 OUTPUT:
2308 RETVAL
2309
2310int
2311fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2312 CODE:
2313 RETVAL = posix_fadvise (fh, offset, length, advice);
2314 OUTPUT:
2315 RETVAL
2316
2317IV
2318sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2319 CODE:
2320 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2321 OUTPUT:
2322 RETVAL
2323
2324void
2325mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2326 PPCODE:
2327 sv_clear_foreign (scalar);
2328{
2329 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2330 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2331 if (addr == (void *)-1)
2332 XSRETURN_NO;
2333
2334 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2335
2336 if (!(prot & PROT_WRITE))
2337 SvREADONLY_on (scalar);
2338
2339 XSRETURN_YES;
2340}
2341
2342void
2343munmap (SV *scalar)
2344 CODE:
2345 sv_clear_foreign (scalar);
2346
2347SV *
2348mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2349 CODE:
2350{
2351 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2352 void *new;
2353
2354 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2355 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2356
2357 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2358
2359 RETVAL = &PL_sv_no;
2360
2361 if (new != (void *)-1)
2362 {
2363 RETVAL = new == (void *)mg->mg_ptr
2364 ? newSVpvn ("0 but true", 10)
2365 : &PL_sv_yes;
2366
2367 mg->mg_ptr = (char *)new;
2368 mg->mg_obj = (SV *)new_length;
2369
2370 SvPVX (scalar) = mg->mg_ptr;
2371 SvCUR_set (scalar, new_length);
2372 }
2373}
2374 OUTPUT:
2375 RETVAL
2376
2377int
2378madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2379 ALIAS:
2380 mprotect = 1
2381 CODE:
2382{
2383 STRLEN svlen;
2384 void *addr = SvPVbyte (scalar, svlen);
2385 STRLEN len = SvUV (length);
2386
2387 if (offset < 0)
2388 offset += svlen;
2389
2390 if (offset < 0 || offset > svlen)
2391 croak ("offset outside of scalar");
2392
2393 if (!SvOK (length) || len + offset > svlen)
2394 len = svlen - offset;
2395
2396 addr = (void *)(((intptr_t)addr) + offset);
2397 eio_page_align (&addr, &len);
2398
2399 switch (ix)
2400 {
2401 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2402 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2403 }
2404}
2405 OUTPUT:
2406 RETVAL
2407
2408int
2409munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2410 CODE:
2411{
2412 STRLEN svlen;
2413 void *addr = SvPVbyte (scalar, svlen);
2414 size_t len = SvUV (length);
2415
2416 if (offset < 0)
2417 offset += svlen;
2418
2419 if (offset < 0 || offset > svlen)
2420 croak ("offset outside of scalar");
2421
2422 if (!SvOK (length) || len + offset > svlen)
2423 len = svlen - offset;
2424
2425 addr = (void *)(((intptr_t)addr) + offset);
2426 eio_page_align (&addr, &len);
2427#if _POSIX_MEMLOCK_RANGE
2428 RETVAL = munlock (addr, len);
2429#else
2430 RETVAL = EIO_ENOSYS ();
2431#endif
2432}
2433 OUTPUT:
2434 RETVAL
2435
2436int
2437mlockall (int flags)
2438 PROTOTYPE: $;
2439 CODE:
2440 RETVAL = eio_mlockall_sync (flags);
2441 OUTPUT:
2442 RETVAL
2443
2444int
2445munlockall ()
2446 CODE:
2447#if _POSIX_MEMLOCK
2448 munlockall ();
2449#else
2450 RETVAL = EIO_ENOSYS ();
2451#endif
2452 OUTPUT:
2453 RETVAL
2454
2455int
2456statx (SV8 *pathname, int flags, UV mask)
2457 CODE:
2458{
2459 /* undocumented, and might go away, and anyway, should use eio_statx */
2460 SV *wdsv = 0;
2461 SV *pathsv = 0;
2462 eio_wd wd = EIO_CWD;
2463 void *ptr;
2464 int res;
2465
2466 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2467 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2468
2469 SvREFCNT_dec (pathsv);
2470 SvREFCNT_dec (wdsv);
2471}
2472 OUTPUT:
2473 RETVAL
2474
2475U32
2476stx_mode ()
778 PROTOTYPE: 2477 PROTOTYPE:
779 CODE: 2478 CODE:
2479#if HAVE_STATX
2480 RETVAL = stx.stx_mode;
2481#else
2482 XSRETURN_UNDEF;
2483#endif
2484 OUTPUT:
2485 RETVAL
2486
2487#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2488#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2489#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2490#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2491#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2492#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2493#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2494#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2495#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2496#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2497#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2498#define STATX_OFFSET_size statx_offsetof (stx_size)
2499#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2500#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2501#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2502#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2503#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2504#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2505
2506U32
2507stx_mask ()
2508 PROTOTYPE:
2509 ALIAS:
2510 stx_mask = STATX_OFFSET_mask
2511 stx_blksize = STATX_OFFSET_blksize
2512 stx_nlink = STATX_OFFSET_nlink
2513 stx_uid = STATX_OFFSET_uid
2514 stx_gid = STATX_OFFSET_gid
2515 stx_rdev_major = STATX_OFFSET_rdev_major
2516 stx_rdev_minor = STATX_OFFSET_rdev_minor
2517 stx_dev_major = STATX_OFFSET_dev_major
2518 stx_dev_minor = STATX_OFFSET_dev_minor
2519 CODE:
2520#if HAVE_STATX
2521 RETVAL = *(__u32 *)((char *)&stx + ix);
2522#else
2523 XSRETURN_UNDEF;
2524#endif
2525 OUTPUT:
2526 RETVAL
2527
2528VAL64
2529stx_attributes ()
2530 PROTOTYPE:
2531 ALIAS:
2532 stx_attributes = STATX_OFFSET_attributes
2533 stx_ino = STATX_OFFSET_ino
2534 stx_size = STATX_OFFSET_size
2535 stx_blocks = STATX_OFFSET_blocks
2536 stx_attributes_mask = STATX_OFFSET_attributes_mask
2537 CODE:
2538#if HAVE_STATX
2539 RETVAL = *(__u64 *)((char *)&stx + ix);
2540#else
2541 XSRETURN_UNDEF;
2542#endif
2543 OUTPUT:
2544 RETVAL
2545
2546NV
2547stx_atime ()
2548 PROTOTYPE:
2549 ALIAS:
2550 stx_atime = STATX_OFFSET_atime
2551 stx_btime = STATX_OFFSET_btime
2552 stx_ctime = STATX_OFFSET_ctime
2553 stx_mtime = STATX_OFFSET_mtime
2554 CODE:
2555#if HAVE_STATX
2556 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2557 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2558#else
2559 XSRETURN_UNDEF;
2560#endif
2561 OUTPUT:
2562 RETVAL
2563
2564VAL64
2565stx_atimesec ()
2566 PROTOTYPE:
2567 ALIAS:
2568 stx_atimesec = STATX_OFFSET_atime
2569 stx_btimesec = STATX_OFFSET_btime
2570 stx_ctimesec = STATX_OFFSET_ctime
2571 stx_mtimesec = STATX_OFFSET_mtime
2572 CODE:
2573#if HAVE_STATX
2574 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2575 RETVAL = ts->tv_sec;
2576#else
2577 XSRETURN_UNDEF;
2578#endif
2579 OUTPUT:
2580 RETVAL
2581
2582U32
2583stx_atimensec ()
2584 PROTOTYPE:
2585 ALIAS:
2586 stx_atimensec = STATX_OFFSET_atime
2587 stx_btimensec = STATX_OFFSET_btime
2588 stx_ctimensec = STATX_OFFSET_ctime
2589 stx_mtimensec = STATX_OFFSET_mtime
2590 CODE:
2591#if HAVE_STATX
2592 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2593 RETVAL = ts->tv_nsec;
2594#else
2595 RETVAL = 0;
2596#endif
2597 OUTPUT:
2598 RETVAL
2599
2600void
2601accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2602 PPCODE:
2603{
2604 SV *retval;
2605#if HAVE_ACCEPT4
2606 socklen_t salen_ = salen ? salen + 1 : 0;
2607
780 if (nreqs) 2608 if (salen)
781 poll_wait (); 2609 {
2610 sv_upgrade (sockaddr, SVt_PV);
2611 sv_grow (sockaddr, salen_);
2612 }
2613
2614 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2615
2616 retval = newmortalFH (res, O_RDWR);
2617
2618 if (res >= 0 && salen > 0)
2619 {
2620 if (salen_ > salen + 1)
2621 salen_ = salen + 1;
2622
2623 SvPOK_only (sockaddr);
2624 SvCUR_set (sockaddr, salen_);
2625 }
2626#else
2627 errno = ENOSYS;
2628 retval = &PL_sv_undef;
2629#endif
2630 XPUSHs (retval);
2631}
2632
2633ssize_t
2634splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2635 CODE:
2636{
2637#if HAVE_LINUX_SPLICE
2638 loff_t off_in_, off_out_;
2639 RETVAL = splice (
2640 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2641 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2642 length, flags
2643 );
2644#else
2645 RETVAL = EIO_ENOSYS ();
2646#endif
2647}
2648 OUTPUT:
2649 RETVAL
2650
2651ssize_t
2652tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2653 CODE:
2654#if HAVE_LINUX_SPLICE
2655 RETVAL = tee (rfh, wfh, length, flags);
2656#else
2657 RETVAL = EIO_ENOSYS ();
2658#endif
2659 OUTPUT:
2660 RETVAL
782 2661
783int 2662int
784nreqs() 2663pipesize (aio_rfd rfh, int new_size = -1)
2664 PROTOTYPE: $;$
2665 CODE:
2666#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2667 if (new_size >= 0)
2668 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2669 else
2670 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2671#else
2672 errno = ENOSYS;
2673 RETVAL = -1;
2674#endif
2675 OUTPUT:
2676 RETVAL
2677
2678void
2679pipe2 (int flags = 0)
785 PROTOTYPE: 2680 PROTOTYPE: ;$
2681 PPCODE:
2682{
2683 int fd[2];
2684 int res;
2685
2686 if (flags)
2687#if HAVE_PIPE2
2688 res = pipe2 (fd, flags);
2689#else
2690 res = (errno = ENOSYS, -1);
2691#endif
2692 else
2693 res = pipe (fd);
2694
2695 if (!res)
2696 {
2697 EXTEND (SP, 2);
2698 PUSHs (newmortalFH (fd[0], O_RDONLY));
2699 PUSHs (newmortalFH (fd[1], O_WRONLY));
2700 }
2701}
2702
2703void
2704pidfd_open (int pid, unsigned int flags = 0)
2705 PPCODE:
2706{
2707 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2708 int fd = syscall (SYS_pidfd_open, pid, flags);
2709 XPUSHs (newmortalFH (fd, O_RDWR));
2710}
2711
2712int
2713pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
2714 PPCODE:
2715{
2716 int res;
2717#if HAVE_SIGINFO_T
2718 siginfo_t si = { 0 };
2719
2720 if (SvOK (siginfo))
2721 {
2722 HV *hv;
2723 SV **svp;
2724
2725 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2726 croak ("siginfo argument must be a hashref with 'code', 'pid', 'uid' and 'value_int' or 'value_ptr' members, caught");
2727
2728 hv = (HV *)SvRV (siginfo);
2729
2730 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2731 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2732 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2733 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2734 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2735 }
2736
2737 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2738 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2739#else
2740 res = (errno = ENOSYS, -1);
2741#endif
2742
2743 XPUSHs (sv_2mortal (newSViv (res)));
2744}
2745
2746void
2747pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2748 PPCODE:
2749{
2750 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2751 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2752 XPUSHs (newmortalFH (fd, O_RDWR));
2753}
2754
2755void
2756eventfd (unsigned int initval = 0, int flags = 0)
2757 PPCODE:
2758{
2759 int fd;
2760#if HAVE_EVENTFD
2761 fd = eventfd (initval, flags);
2762#else
2763 fd = (errno = ENOSYS, -1);
2764#endif
2765
2766 XPUSHs (newmortalFH (fd, O_RDWR));
2767}
2768
2769void
2770timerfd_create (int clockid, int flags = 0)
2771 PPCODE:
2772{
2773 int fd;
2774#if HAVE_TIMERFD
2775 fd = timerfd_create (clockid, flags);
2776#else
2777 fd = (errno = ENOSYS, -1);
2778#endif
2779
2780 XPUSHs (newmortalFH (fd, O_RDWR));
2781}
2782
2783void
2784timerfd_settime (SV *fh, int flags, NV interval, NV value)
2785 PPCODE:
2786{
2787 int fd = s_fileno_croak (fh, 0);
2788#if HAVE_TIMERFD
2789 int res;
2790 struct itimerspec its, ots;
2791
2792 ts_set (&its.it_interval, interval);
2793 ts_set (&its.it_value , value);
2794 res = timerfd_settime (fd, flags, &its, &ots);
2795
2796 if (!res)
2797 {
2798 EXTEND (SP, 2);
2799 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2800 PUSHs (newSVnv (ts_get (&ots.it_value)));
2801 }
2802#else
2803 errno = ENOSYS;
2804#endif
2805}
2806
2807void
2808timerfd_gettime (SV *fh)
2809 PPCODE:
2810{
2811 int fd = s_fileno_croak (fh, 0);
2812#if HAVE_TIMERFD
2813 int res;
2814 struct itimerspec ots;
2815 res = timerfd_gettime (fd, &ots);
2816
2817 if (!res)
2818 {
2819 EXTEND (SP, 2);
2820 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2821 PUSHs (newSVnv (ts_get (&ots.it_value)));
2822 }
2823#else
2824 errno = ENOSYS;
2825#endif
2826}
2827
2828void
2829memfd_create (SV8 *pathname, int flags = 0)
2830 PPCODE:
2831{
2832 int fd;
2833#if HAVE_MEMFD_CREATE
2834 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2835#else
2836 fd = (errno = ENOSYS, -1);
2837#endif
2838
2839 XPUSHs (newmortalFH (fd, O_RDWR));
2840}
2841
2842int
2843fexecve (SV *fh, SV *args, SV *envs = &PL_sv_undef)
786 CODE: 2844 CODE:
787 RETVAL = nreqs; 2845{
2846 int fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
2847 char **envp, **argv;
2848 argv = extract_stringvec (args, "IO::AIO::fexecve: args must be an array of strings");
2849 if (!SvOK (envs))
2850 {
2851 extern char **environ;
2852 envp = environ;
2853 }
2854 else
2855 envp = extract_stringvec (envs, "IO::AIO::fexecve: envs must be an array of strings");
2856#if _POSIX_VERSION >= 200809L
2857 RETVAL = fexecve (fd, argv, envp);
2858#else
2859 RETVAL = (errno = ENOSYS, -1);
2860#endif
2861}
2862 OUTPUT: RETVAL
2863
2864UV
2865get_fdlimit ()
2866 CODE:
2867#if HAVE_RLIMITS
2868 struct rlimit rl;
2869 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2870 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2871#endif
2872 XSRETURN_UNDEF;
788 OUTPUT: 2873 OUTPUT:
789 RETVAL 2874 RETVAL
790 2875
2876void
2877min_fdlimit (UV limit = 0x7fffffffU)
2878 CODE:
2879{
2880#if HAVE_RLIMITS
2881 struct rlimit rl;
2882 rlim_t orig_rlim_max;
2883 UV bit;
2884
2885 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2886 goto fail;
2887
2888 if (rl.rlim_cur == RLIM_INFINITY)
2889 XSRETURN_YES;
2890
2891 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2892
2893 if (rl.rlim_cur < limit)
2894 {
2895 rl.rlim_cur = limit;
2896
2897 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2898 rl.rlim_max = rl.rlim_cur;
2899 }
2900
2901 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2902 XSRETURN_YES;
2903
2904 if (errno == EPERM)
2905 {
2906 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2907 /* our limit overflows a system-wide limit */
2908 /* try an adaptive algorithm, but do not lower the hardlimit */
2909 rl.rlim_max = 0;
2910 for (bit = 0x40000000U; bit; bit >>= 1)
2911 {
2912 rl.rlim_max |= bit;
2913 rl.rlim_cur = rl.rlim_max;
2914
2915 /* never decrease the hard limit */
2916 if (rl.rlim_max < orig_rlim_max)
2917 break;
2918
2919 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2920 rl.rlim_max &= ~bit; /* too high, remove bit again */
2921 }
2922
2923 /* now, raise the soft limit to the max permitted */
2924 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2925 {
2926 rl.rlim_cur = rl.rlim_max;
2927 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2928 errno = EPERM;
2929 }
2930 }
2931#endif
2932 fail:
2933 XSRETURN_UNDEF;
2934}
2935
2936void _on_next_submit (SV *cb)
2937 CODE:
2938 SvREFCNT_dec (on_next_submit);
2939 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2940
2941PROTOTYPES: DISABLE
2942
2943MODULE = IO::AIO PACKAGE = IO::AIO::WD
2944
2945BOOT:
2946{
2947 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2948 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2949}
2950
2951void
2952DESTROY (SV *self)
2953 CODE:
2954{
2955 aio_wd wd = SvAIO_WD (self);
2956#if HAVE_AT
2957 {
2958 SV *callback = &PL_sv_undef;
2959 dREQ; /* clobbers next_pri :/ */
2960 next_pri = req->pri; /* restore next_pri */
2961 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2962 req->type = EIO_WD_CLOSE;
2963 req->wd = wd;
2964 REQ_SEND;
2965 }
2966#else
2967 eio_wd_close_sync (wd);
2968#endif
2969}
2970
2971MODULE = IO::AIO PACKAGE = IO::AIO::REQ
2972
2973void
2974cancel (aio_req_ornot req)
2975 CODE:
2976 eio_cancel (req);
2977
2978void
2979cb (aio_req_ornot req, SV *callback = NO_INIT)
2980 PPCODE:
2981{
2982 if (GIMME_V != G_VOID)
2983 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2984
2985 if (items > 1)
2986 {
2987 SV *cb_cv = get_cb (callback);
2988
2989 SvREFCNT_dec (req->callback);
2990 req->callback = SvREFCNT_inc (cb_cv);
2991 }
2992}
2993
2994MODULE = IO::AIO PACKAGE = IO::AIO::GRP
2995
2996void
2997add (aio_req grp, ...)
2998 PPCODE:
2999{
3000 int i;
3001
3002 if (grp->int1 == 2)
3003 croak ("cannot add requests to IO::AIO::GRP after the group finished");
3004
3005 for (i = 1; i < items; ++i )
3006 {
3007 aio_req req;
3008
3009 if (GIMME_V != G_VOID)
3010 XPUSHs (sv_2mortal (newSVsv (ST (i))));
3011
3012 req = SvAIO_REQ (ST (i));
3013
3014 if (req)
3015 eio_grp_add (grp, req);
3016 }
3017}
3018
3019void
3020cancel_subs (aio_req_ornot req)
3021 CODE:
3022 req_cancel_subs (req);
3023
3024void
3025result (aio_req grp, ...)
3026 CODE:
3027{
3028 int i;
3029 AV *av;
3030
3031 grp->errorno = errno;
3032
3033 av = newAV ();
3034 av_extend (av, items - 1);
3035
3036 for (i = 1; i < items; ++i )
3037 av_push (av, newSVsv (ST (i)));
3038
3039 SvREFCNT_dec (grp->sv1);
3040 grp->sv1 = (SV *)av;
3041}
3042
3043void
3044errno (aio_req grp, int errorno = errno)
3045 CODE:
3046 grp->errorno = errorno;
3047
3048void
3049limit (aio_req grp, int limit)
3050 CODE:
3051 eio_grp_limit (grp, limit);
3052
3053void
3054feed (aio_req grp, SV *callback = &PL_sv_undef)
3055 CODE:
3056{
3057 SvREFCNT_dec (grp->sv2);
3058 grp->sv2 = newSVsv (callback);
3059 grp->feed = aio_grp_feed;
3060
3061 if (grp->int2 <= 0)
3062 grp->int2 = 2;
3063
3064 eio_grp_limit (grp, grp->int2);
3065}
3066

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