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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.46 by root, Sun Oct 22 00:49:29 2006 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
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)
48#endif 241#endif
49 242
50enum { 243/*****************************************************************************/
51 REQ_QUIT, 244
52 REQ_OPEN, REQ_CLOSE, 245#if !_POSIX_MAPPED_FILES
53 REQ_READ, REQ_WRITE, REQ_READAHEAD, 246# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
54 REQ_SENDFILE, 247# define munmap(addr,length) EIO_ENOSYS ()
55 REQ_STAT, REQ_LSTAT, REQ_FSTAT, 248#endif
56 REQ_FSYNC, REQ_FDATASYNC, 249
57 REQ_UNLINK, REQ_RMDIR, REQ_RENAME, 250#if !_POSIX_MEMORY_PROTECTION
58 REQ_READDIR, 251# define mprotect(addr,len,prot) EIO_ENOSYS ()
59 REQ_LINK, REQ_SYMLINK, 252#endif
60 REQ_SLEEP, 253
61 REQ_GROUP, 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
62}; 283};
63 284
64#define AIO_REQ_KLASS "IO::AIO::REQ" 285static int ecb_cold
65#define AIO_GRP_KLASS "IO::AIO::GRP" 286sysfree_free (pTHX_ SV *sv, MAGIC *mg)
66
67typedef struct aio_cb
68{ 287{
69 struct aio_cb *grp, *grp_prev, *grp_next; 288 free (mg->mg_ptr);
289 mg->mg_obj = 0; /* just in case */
70 290
71 struct aio_cb *volatile next; 291 SvREADONLY_off (sv);
72 292
73 SV *self; /* the perl counterpart of this request, if any */ 293 if (SvPVX (sv) != mg->mg_ptr)
294 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
74 295
75 SV *data, *callback; 296 SvCUR_set (sv, 0);
76 SV *fh, *fh2; 297 SvPVX (sv) = 0;
77 void *dataptr, *data2ptr; 298 SvOK_off (sv);
78 Stat_t *statdata;
79 off_t offset;
80 size_t length;
81 ssize_t result;
82 299
83 int type; 300 return 0;
84 int fd, fd2;
85 int errorno;
86 STRLEN dataoffset;
87 mode_t mode; /* open */
88 unsigned char cancelled;
89} aio_cb;
90
91typedef aio_cb *aio_req;
92typedef aio_cb *aio_req_ornot;
93
94static int started, wanted;
95static volatile int nreqs;
96static int max_outstanding = 1<<30;
97static int respipe [2];
98
99static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
100static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
101static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
102
103static volatile aio_req reqs, reqe; /* queue start, queue end */
104static volatile aio_req ress, rese; /* queue start, queue end */
105
106static void req_free (aio_req req);
107
108/* must be called at most once */
109static SV *req_sv (aio_req req, const char *klass)
110{
111 req->self = (SV *)newHV ();
112 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
113
114 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));
115} 301}
116 302
117static aio_req SvAIO_REQ (SV *sv) 303static MGVTBL sysfree_vtbl = {
118{ 304 0, 0, 0, 0, sysfree_free
119 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 305};
120 croak ("object of class " AIO_REQ_KLASS " expected");
121 306
122 MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 307/*****************************************************************************/
123 308
124 return mg ? (aio_req)mg->mg_ptr : 0; 309/* helper: set scalar to foreign ptr with custom free */
125} 310ecb_noinline
126 311static void
127static void poll_wait () 312sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
128{ 313{
129 if (nreqs && !ress) 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 (;;)
130 { 395 {
131 fd_set rfd; 396 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
132 FD_ZERO(&rfd); 397 char scratch[3072];
133 FD_SET(respipe [0], &rfd); 398 struct fiemap *incmap = (struct fiemap *)scratch;
134 399
135 select (respipe [0] + 1, &rfd, 0, 0, 0); 400 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
136 } 401 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
137} 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);
138 405
139static void req_invoke (aio_req req) 406 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
140{
141 dSP;
142 int errorno = errno;
143
144 if (req->cancelled || !SvOK (req->callback))
145 return; 407 return;
146 408
147 errno = req->errorno; 409 if (!incmap->fm_mapped_extents)
410 goto done;
148 411
149 ENTER; 412 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
150 PUSHMARK (SP); 413 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
414 errno = ENOMEM;
415 if (!fiemap)
416 return;
151 417
152 switch (req->type) 418 req->ptr1 = fiemap;
153 { 419
154 case REQ_READDIR: 420 for (count = 0; count < incmap->fm_mapped_extents; ++count)
155 { 421 {
156 SV *rv = &PL_sv_undef; 422 struct fiemap_extent *e = incmap->fm_extents + count;
157 423
158 if (req->result >= 0) 424 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
159 {
160 char *buf = req->data2ptr;
161 AV *av = newAV ();
162 425
163 while (req->result) 426 if (e->fe_logical >= end_offset)
164 { 427 goto done;
165 SV *sv = newSVpv (buf, 0);
166 428
167 av_push (av, sv); 429 if (e->fe_flags & FIEMAP_EXTENT_LAST)
168 buf += SvCUR (sv) + 1; 430 goto done;
169 req->result--;
170 }
171 431
172 rv = sv_2mortal (newRV_noinc ((SV *)av));
173 }
174
175 XPUSHs (rv);
176 }
177 break;
178
179 case REQ_OPEN:
180 {
181 /* convert fd to fh */
182 SV *fh;
183
184 XPUSHs (sv_2mortal (newSViv (req->result)));
185 PUTBACK;
186 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
187 SPAGAIN;
188
189 fh = SvREFCNT_inc (POPs);
190
191 PUSHMARK (SP);
192 XPUSHs (sv_2mortal (fh));
193 }
194 break;
195
196 case REQ_SLEEP:
197 case REQ_GROUP:
198 break;
199
200 default:
201 XPUSHs (sv_2mortal (newSViv (req->result)));
202 break;
203 }
204
205
206 PUTBACK;
207 call_sv (req->callback, G_VOID | G_EVAL);
208 SPAGAIN;
209
210 if (SvTRUE (ERRSV))
211 {
212 req_free (req);
213 croak (0);
214 }
215
216 LEAVE;
217
218 errno = errorno;
219}
220
221static void req_free (aio_req req)
222{
223 if (req->grp)
224 {
225 aio_req grp = req->grp;
226
227 /* unlink request */
228 req->grp_next->grp_prev = req->grp_prev;
229 req->grp_prev->grp_next = req->grp_next;
230
231 if (grp->grp_next == grp && grp->fd)
232 {
233 req_invoke (grp);
234 req_free (grp);
235 } 432 }
236 } 433 }
237 434
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()
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))
618 {
619 sv_result = sv_result_cache; sv_result_cache = 0;
620 SvIV_set (sv_result, req->result);
621 SvIOK_only (sv_result);
622 }
623 else
624 {
625 sv_result = newSViv (req->result);
626 SvREADONLY_on (sv_result);
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;
882 }
883
884 return !!SvTRUE (ERRSV);
885}
886
887static void
888req_destroy (aio_req req)
889{
238 if (req->self) 890 if (req->self)
239 { 891 {
240 sv_unmagic (req->self, PERL_MAGIC_ext); 892 sv_unmagic (req->self, PERL_MAGIC_ext);
241 SvREFCNT_dec (req->self); 893 SvREFCNT_dec (req->self);
242 } 894 }
243 895
244 if (req->data)
245 SvREFCNT_dec (req->data);
246
247 if (req->fh)
248 SvREFCNT_dec (req->fh); 896 SvREFCNT_dec (req->sv1);
249
250 if (req->fh2)
251 SvREFCNT_dec (req->fh2); 897 SvREFCNT_dec (req->sv2);
252 898 SvREFCNT_dec (req->sv3);
253 if (req->statdata) 899 SvREFCNT_dec (req->sv4);
254 Safefree (req->statdata);
255
256 if (req->callback)
257 SvREFCNT_dec (req->callback); 900 SvREFCNT_dec (req->callback);
258 901
259 if (req->type == REQ_READDIR && req->result >= 0)
260 free (req->data2ptr);
261
262 Safefree (req); 902 free (req);
263} 903}
264 904
265static void req_cancel (aio_req req) 905static void
906req_cancel_subs (aio_req grp)
266{ 907{
267 req->cancelled = 1;
268
269 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 ())
270 { 929 {
271 aio_req sub; 930 int size;
272 931
273 for (sub = req->grp_next; sub != req; sub = sub->grp_next) 932 X_LOCK (EIO_POOL->reslock);
274 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);
275 } 942 }
276} 943}
277 944
278static int poll_cb () 945static int
946poll_cb (void)
279{ 947{
280 dSP;
281 int count = 0;
282 int do_croak = 0;
283 aio_req req;
284
285 for (;;) 948 for (;;)
286 { 949 {
287 pthread_mutex_lock (&reslock); 950 int res = eio_poll ();
288 req = ress;
289 951
290 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)
291 { 1024 {
292 ress = req->next; 1025 path = AvARRAY (rv)[1];
1026 wdob = AvARRAY (rv)[0];
293 1027
294 if (!ress) 1028 if (SvOK (wdob))
295 { 1029 {
296 /* read any signals sent by the worker threads */ 1030 *wd = SvAIO_WD (wdob);
297 char buf [32]; 1031 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
298 while (read (respipe [0], buf, 32) == 32)
299 ;
300
301 rese = 0;
302 } 1032 }
1033 else
1034 *wd = EIO_INVALID_WD;
303 } 1035 }
304 1036 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
305 pthread_mutex_unlock (&reslock);
306
307 if (!req)
308 break;
309
310 nreqs--;
311
312 if (req->type == REQ_QUIT)
313 started--;
314 else if (req->type == REQ_GROUP && req->grp_next != req)
315 { 1037 {
316 req->fd = 1; /* mark request as delayed */ 1038 *wd = (aio_wd)(long)SvIVX (rv);
317 continue; 1039 *wdsv = SvREFCNT_inc_NN (rv);
1040 *ptr = ".";
1041 return; /* path set to "." */
318 } 1042 }
319 else 1043 else
320 { 1044 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
321 if (req->type == REQ_READ)
322 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
323
324 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
325 SvREADONLY_off (req->data);
326
327 if (req->statdata)
328 {
329 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
330 PL_laststatval = req->result;
331 PL_statcache = *(req->statdata);
332 }
333
334 req_invoke (req);
335
336 count++;
337 }
338
339 req_free (req);
340 } 1045 }
341 1046
342 return count; 1047 *pathsv = newSVsv (path);
1048 *ptr = SvPVbyte_nolen (*pathsv);
343} 1049}
344 1050
345static void *aio_proc(void *arg); 1051ecb_noinline
346 1052static void
347static void start_thread (void) 1053req_set_path1 (aio_req req, SV *path)
348{ 1054{
349 sigset_t fullsigset, oldsigset; 1055 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
350 pthread_t tid;
351 pthread_attr_t attr;
352
353 pthread_attr_init (&attr);
354 pthread_attr_setstacksize (&attr, STACKSIZE);
355 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
356
357 sigfillset (&fullsigset);
358 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
359
360 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
361 started++;
362
363 sigprocmask (SIG_SETMASK, &oldsigset, 0);
364} 1056}
365 1057
366static 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)
367{ 1061{
368 while (started < wanted && nreqs >= started) 1062 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
369 start_thread ();
370 1063
371 nreqs++; 1064 switch (SvTYPE (rv))
372
373 pthread_mutex_lock (&reqlock);
374
375 req->next = 0;
376
377 if (reqe)
378 { 1065 {
379 reqe->next = req; 1066 case SVt_PVIO:
380 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;
381 } 1078 }
382 else
383 reqe = reqs = req;
384
385 pthread_cond_signal (&reqwait);
386 pthread_mutex_unlock (&reqlock);
387
388 if (nreqs > max_outstanding)
389 for (;;)
390 {
391 poll_cb ();
392
393 if (nreqs <= max_outstanding)
394 break;
395
396 poll_wait ();
397 }
398} 1079}
399 1080
400static void end_thread (void) 1081/*****************************************************************************/
401{
402 aio_req req;
403 Newz (0, req, 1, aio_cb);
404 req->type = REQ_QUIT;
405 1082
406 req_send (req); 1083static void
407} 1084ts_set (struct timespec *ts, NV value)
408
409static void min_parallel (int nthreads)
410{ 1085{
411 if (wanted < nthreads) 1086 ts->tv_sec = value;
412 wanted = nthreads; 1087 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
413} 1088}
414 1089
415static void max_parallel (int nthreads) 1090static NV
1091ts_get (const struct timespec *ts)
416{ 1092{
417 int cur = started; 1093 return ts->tv_sec + ts->tv_nsec * 1e-9;
1094}
418 1095
419 if (wanted > nthreads) 1096/*****************************************************************************/
420 wanted = nthreads;
421 1097
422 while (cur > wanted) 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)
423 { 1110 {
424 end_thread (); 1111 SV **e = av_fetch (av, i, 0);
425 cur--; 1112
1113 if (e && *e)
1114 vecp[i] = SvPVbyte_nolen (*e);
1115 else
1116 vecp[i] = "";
426 } 1117 }
427 1118
428 while (started > wanted) 1119 vecp[nelem] = 0;
429 {
430 poll_wait ();
431 poll_cb ();
432 }
433}
434 1120
435static void create_pipe () 1121 return vecp;
436{
437 if (pipe (respipe))
438 croak ("unable to initialize result pipe");
439
440 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
441 croak ("cannot set result pipe to nonblocking mode");
442
443 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
444 croak ("cannot set result pipe to nonblocking mode");
445} 1122}
446 1123
447/*****************************************************************************/ 1124/*****************************************************************************/
448/* work around various missing functions */
449 1125
450#if !HAVE_PREADWRITE 1126XS(boot_IO__AIO) ecb_cold;
451# define pread aio_pread
452# define pwrite aio_pwrite
453 1127
454/* 1128MODULE = IO::AIO PACKAGE = IO::AIO
455 * make our pread/pwrite safe against themselves, but not against
456 * normal read/write by using a mutex. slows down execution a lot,
457 * but that's your problem, not mine.
458 */
459static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
460 1129
461static ssize_t pread (int fd, void *buf, size_t count, off_t offset) 1130PROTOTYPES: ENABLE
462{
463 ssize_t res;
464 off_t ooffset;
465 1131
466 pthread_mutex_lock (&preadwritelock); 1132BOOT:
467 ooffset = lseek (fd, 0, SEEK_CUR);
468 lseek (fd, offset, SEEK_SET);
469 res = read (fd, buf, count);
470 lseek (fd, ooffset, SEEK_SET);
471 pthread_mutex_unlock (&preadwritelock);
472
473 return res;
474}
475
476static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
477{ 1133{
478 ssize_t res; 1134 static const struct {
479 off_t ooffset; 1135 const char *name;
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 },
480 1141
481 pthread_mutex_lock (&preadwritelock); 1142 /* you have to re-run ./gendef0 after adding/removing any constants here */
482 ooffset = lseek (fd, 0, SEEK_CUR); 1143 /* the first block can be undef if missing */
483 lseek (fd, offset, SEEK_SET); 1144 const_iv (ENOSYS)
484 res = write (fd, buf, count); 1145 const_iv (EXDEV)
485 lseek (fd, offset, SEEK_SET); 1146 const_iv (EBADR)
486 pthread_mutex_unlock (&preadwritelock);
487 1147
488 return res; 1148 /* for lseek */
489} 1149 const_iv (SEEK_DATA)
490#endif 1150 const_iv (SEEK_HOLE)
491 1151
492#if !HAVE_FDATASYNC 1152 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
493# define fdatasync fsync 1153 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
494#endif 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)
495 1158
496#if !HAVE_READAHEAD 1159 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
497# define readahead aio_readahead 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)
498 1164
499static ssize_t readahead (int fd, off_t offset, size_t count) 1165 /* the second block will be 0 when missing */
500{ 1166 const_iv (O_ACCMODE)
501 char readahead_buf[4096];
502 1167
503 while (count > 0) 1168 const_iv (O_RDONLY)
504 { 1169 const_iv (O_WRONLY)
505 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf); 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)
506 1175
507 pread (fd, readahead_buf, len, offset); 1176 const_iv (O_ASYNC)
508 offset += len; 1177 const_iv (O_DIRECT)
509 count -= len; 1178 const_iv (O_NOATIME)
510 }
511 1179
512 errno = 0; 1180 const_iv (O_CLOEXEC)
513} 1181 const_iv (O_NOCTTY)
514#endif 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)
515 1193
516#if !HAVE_READDIR_R 1194 const_iv (S_IFIFO)
517# define readdir_r aio_readdir_r 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)
518 1203
519static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER; 1204 const_iv (ST_RDONLY)
520 1205 const_iv (ST_NOSUID)
521static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res) 1206 const_iv (ST_NODEV)
522{ 1207 const_iv (ST_NOEXEC)
523 struct dirent *e; 1208 const_iv (ST_SYNCHRONOUS)
524 int errorno; 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)
525 1216
526 pthread_mutex_lock (&readdirlock); 1217 const_iv (PROT_NONE)
1218 const_iv (PROT_EXEC)
1219 const_iv (PROT_READ)
1220 const_iv (PROT_WRITE)
527 1221
528 e = readdir (dirp); 1222 const_iv (MAP_PRIVATE)
529 errorno = errno; 1223 const_iv (MAP_SHARED)
1224 const_iv (MAP_FIXED)
1225 const_iv (MAP_ANONYMOUS)
530 1226
531 if (e) 1227 /* linuxish */
532 { 1228 const_iv (MAP_LOCKED)
533 *res = ent; 1229 const_iv (MAP_NORESERVE)
534 strcpy (ent->d_name, e->d_name); 1230 const_iv (MAP_POPULATE)
535 } 1231 const_iv (MAP_NONBLOCK)
536 else 1232 const_iv (MAP_GROWSDOWN)
537 *res = 0; 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)
538 1240
539 pthread_mutex_unlock (&readdirlock); 1241 const_iv (MREMAP_MAYMOVE)
1242 const_iv (MREMAP_FIXED)
540 1243
541 errno = errorno; 1244 const_iv (MSG_CMSG_CLOEXEC)
542 return e ? 0 : -1; 1245 const_iv (SOCK_CLOEXEC)
543}
544#endif
545 1246
546/* sendfile always needs emulation */ 1247 const_iv (F_DUPFD_CLOEXEC)
547static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
548{
549 ssize_t res;
550 1248
551 if (!count) 1249 const_iv (F_ADD_SEALS)
552 return 0; 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)
553 1255
554#if HAVE_SENDFILE 1256 const_iv (F_OFD_GETLK)
555# if __linux 1257 const_iv (F_OFD_SETLK)
556 res = sendfile (ofd, ifd, &offset, count); 1258 const_iv (F_OFD_GETLKW)
557 1259
558# elif __freebsd 1260 const_iv (FIFREEZE)
559 /* 1261 const_iv (FITHAW)
560 * Of course, the freebsd sendfile is a dire hack with no thoughts 1262 const_iv (FITRIM)
561 * wasted on making it similar to other I/O functions. 1263 const_iv (FICLONE)
562 */ 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 */
563 { 1491 {
564 off_t sbytes; 1492 int pipefd [2];
565 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
566 1493
567 if (res < 0 && sbytes) 1494 if (
568 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ 1495#ifdef _WIN32
569 res = sbytes; 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];
570 } 1506 }
571 1507
572# elif __hpux 1508 reinit ();
573 res = sendfile (ofd, ifd, offset, count, 0, 0); 1509}
574 1510
575# elif __solaris 1511void
1512reinit ()
1513 PROTOTYPE:
1514
1515void
1516max_poll_reqs (unsigned int nreqs)
1517 PROTOTYPE: $
1518 CODE:
1519 eio_set_max_poll_reqs (nreqs);
1520
1521void
1522max_poll_time (double nseconds)
1523 PROTOTYPE: $
1524 CODE:
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:
1555 max_outstanding = maxreqs;
1556
1557void
1558aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1559 PPCODE:
1560{
1561 dREQ;
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
1575 req->type = EIO_OPEN;
1576 req_set_path1 (req, pathname);
1577 req->int1 = flags;
1578 req->int2 = mode;
1579
1580 REQ_SEND;
1581}
1582
1583void
1584aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1585 ALIAS:
1586 aio_fsync = EIO_FSYNC
1587 aio_fdatasync = EIO_FDATASYNC
1588 aio_syncfs = EIO_SYNCFS
1589 PPCODE:
1590{
1591 int fd = s_fileno_croak (fh, 0);
1592 dREQ;
1593
1594 req->type = ix;
1595 req->sv1 = newSVsv (fh);
1596 req->int1 = fd;
1597
1598 REQ_SEND;
1599}
1600
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))
576 { 1646 {
577 struct sendfilevec vec; 1647 fh = SvRV (fh);
578 size_t sbytes; 1648 SvGETMAGIC (fh);
579
580 vec.sfv_fd = ifd;
581 vec.sfv_flag = 0;
582 vec.sfv_off = offset;
583 vec.sfv_len = count;
584
585 res = sendfilev (ofd, &vec, 1, &sbytes);
586
587 if (res < 0 && sbytes)
588 res = sbytes;
589 } 1649 }
590 1650
591# endif 1651 if (SvTYPE (fh) == SVt_PVGV)
592#else
593 res = -1;
594 errno = ENOSYS;
595#endif
596
597 if (res < 0
598 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
599#if __solaris
600 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
601#endif
602 )
603 )
604 {
605 /* emulate sendfile. this is a major pain in the ass */
606 char buf[4096];
607 res = 0;
608
609 while (count)
610 {
611 ssize_t cnt;
612
613 cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
614
615 if (cnt <= 0)
616 {
617 if (cnt && !res) res = -1;
618 break;
619 }
620
621 cnt = write (ofd, buf, cnt);
622
623 if (cnt <= 0)
624 {
625 if (cnt && !res) res = -1;
626 break;
627 }
628
629 offset += cnt;
630 res += cnt;
631 count -= cnt;
632 }
633 }
634
635 return res;
636}
637
638/* read a full directory */
639static int scandir_ (const char *path, void **namesp)
640{
641 DIR *dirp = opendir (path);
642 union
643 {
644 struct dirent d;
645 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
646 } u;
647 struct dirent *entp;
648 char *name, *names;
649 int memlen = 4096;
650 int memofs = 0;
651 int res = 0;
652 int errorno;
653
654 if (!dirp)
655 return -1;
656
657 names = malloc (memlen);
658
659 for (;;)
660 {
661 errno = 0, readdir_r (dirp, &u.d, &entp);
662
663 if (!entp)
664 break;
665
666 name = entp->d_name;
667
668 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
669 {
670 int len = strlen (name) + 1;
671
672 res++;
673
674 while (memofs + len > memlen)
675 {
676 memlen *= 2;
677 names = realloc (names, memlen);
678 if (!names)
679 break;
680 }
681
682 memcpy (names + memofs, name, len);
683 memofs += len;
684 }
685 }
686
687 errorno = errno;
688 closedir (dirp);
689
690 if (errorno)
691 {
692 free (names);
693 errno = errorno;
694 res = -1;
695 }
696
697 *namesp = (void *)names;
698 return res;
699}
700
701/*****************************************************************************/
702
703static void *aio_proc (void *thr_arg)
704{
705 aio_req req;
706 int type;
707
708 do
709 {
710 pthread_mutex_lock (&reqlock);
711
712 for (;;)
713 {
714 req = reqs;
715
716 if (reqs)
717 {
718 reqs = reqs->next;
719 if (!reqs) reqe = 0;
720 }
721
722 if (req)
723 break;
724
725 pthread_cond_wait (&reqwait, &reqlock);
726 }
727
728 pthread_mutex_unlock (&reqlock);
729
730 errno = 0; /* strictly unnecessary */
731
732 if (!req->cancelled)
733 switch (req->type)
734 { 1652 {
735 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 1653 /* perl filehandle */
736 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 1654 PerlIOUnix_refcnt_inc (fd);
1655 do_close ((GV *)fh, 1);
737 1656
738 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 1657 req->type = EIO_CLOSE;
739 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; 1658 req->int1 = fd;
740 1659 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
741 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
742 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
743 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
744
745 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
746 case REQ_CLOSE: req->result = close (req->fd); break;
747 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
748 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
749 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
750 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
751 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
752
753 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
754 case REQ_FSYNC: req->result = fsync (req->fd); break;
755 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
756
757 case REQ_SLEEP:
758 {
759 struct timeval tv;
760
761 tv.tv_sec = req->fd;
762 tv.tv_usec = req->fd2;
763
764 req->result = select (0, 0, 0, 0, &tv);
765 }
766
767 case REQ_QUIT:
768 break;
769
770 default:
771 req->result = ENOSYS;
772 break;
773 } 1660 }
774
775 req->errorno = errno;
776
777 pthread_mutex_lock (&reslock);
778
779 req->next = 0;
780
781 if (rese)
782 {
783 rese->next = req;
784 rese = req;
785 }
786 else 1661 else
1662#endif
787 { 1663 {
788 rese = ress = req; 1664 /* fd number */
789 1665 req->type = EIO_DUP2;
790 /* write a dummy byte to the pipe so fh becomes ready */ 1666 req->int1 = close_fd;
791 write (respipe [1], &respipe, 1); 1667 req->sv2 = newSVsv (fh);
1668 req->int2 = fd;
792 } 1669 }
793 1670
794 pthread_mutex_unlock (&reslock); 1671 REQ_SEND;
795 }
796 while (type != REQ_QUIT);
797
798 return 0;
799} 1672}
800 1673
801/*****************************************************************************/
802
803static void atfork_prepare (void)
804{
805 pthread_mutex_lock (&reqlock);
806 pthread_mutex_lock (&reslock);
807#if !HAVE_PREADWRITE
808 pthread_mutex_lock (&preadwritelock);
809#endif
810#if !HAVE_READDIR_R
811 pthread_mutex_lock (&readdirlock);
812#endif
813}
814
815static void atfork_parent (void)
816{
817#if !HAVE_READDIR_R
818 pthread_mutex_unlock (&readdirlock);
819#endif
820#if !HAVE_PREADWRITE
821 pthread_mutex_unlock (&preadwritelock);
822#endif
823 pthread_mutex_unlock (&reslock);
824 pthread_mutex_unlock (&reqlock);
825}
826
827static void atfork_child (void)
828{
829 aio_req prv;
830
831 started = 0;
832
833 while (reqs)
834 {
835 prv = reqs;
836 reqs = prv->next;
837 req_free (prv);
838 }
839
840 reqs = reqe = 0;
841
842 while (ress)
843 {
844 prv = ress;
845 ress = prv->next;
846 req_free (prv);
847 }
848
849 ress = rese = 0;
850
851 close (respipe [0]);
852 close (respipe [1]);
853 create_pipe ();
854
855 atfork_parent ();
856}
857
858#define dREQ \
859 aio_req req; \
860 \
861 if (SvOK (callback) && !SvROK (callback)) \
862 croak ("callback must be undef or of reference type"); \
863 \
864 Newz (0, req, 1, aio_cb); \
865 if (!req) \
866 croak ("out of memory during aio_req allocation"); \
867 \
868 req->callback = newSVsv (callback)
869
870#define REQ_SEND \
871 req_send (req); \
872 \
873 if (GIMME_V != G_VOID) \
874 XPUSHs (req_sv (req, AIO_REQ_KLASS));
875
876MODULE = IO::AIO PACKAGE = IO::AIO
877
878PROTOTYPES: ENABLE
879
880BOOT:
881{
882 HV *stash = gv_stashpv ("IO::AIO", 1);
883 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
884 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
885 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
886
887 create_pipe ();
888 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
889}
890
891void 1674void
892min_parallel (nthreads) 1675aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
893 int nthreads
894 PROTOTYPE: $
895
896void
897max_parallel (nthreads)
898 int nthreads
899 PROTOTYPE: $
900
901int
902max_outstanding (nreqs)
903 int nreqs
904 PROTOTYPE: $
905 CODE: 1676 PPCODE:
906 RETVAL = max_outstanding;
907 max_outstanding = nreqs;
908
909void
910aio_open (pathname,flags,mode,callback=&PL_sv_undef)
911 SV * pathname
912 int flags
913 int mode
914 SV * callback
915 PROTOTYPE: $$$;$
916 PPCODE:
917{ 1677{
1678 int fd = s_fileno_croak (fh, 0);
918 dREQ; 1679 dREQ;
919 1680
920 req->type = REQ_OPEN; 1681 req->type = EIO_SEEK;
921 req->data = newSVsv (pathname); 1682 req->sv1 = newSVsv (fh);
922 req->dataptr = SvPVbyte_nolen (req->data); 1683 req->int1 = fd;
923 req->fd = flags; 1684 req->offs = SvVAL64 (offset);
924 req->mode = mode; 1685 req->int2 = whence;
925 1686
926 REQ_SEND; 1687 REQ_SEND;
927} 1688}
928 1689
929void 1690void
930aio_close (fh,callback=&PL_sv_undef) 1691aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
931 SV * fh
932 SV * callback
933 PROTOTYPE: $;$
934 ALIAS: 1692 ALIAS:
935 aio_close = REQ_CLOSE
936 aio_fsync = REQ_FSYNC
937 aio_fdatasync = REQ_FDATASYNC
938 PPCODE:
939{
940 dREQ;
941
942 req->type = ix;
943 req->fh = newSVsv (fh);
944 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
945
946 REQ_SEND (req);
947}
948
949void
950aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
951 SV * fh
952 UV offset
953 UV length
954 SV * data
955 UV dataoffset
956 SV * callback
957 ALIAS:
958 aio_read = REQ_READ 1693 aio_read = EIO_READ
959 aio_write = REQ_WRITE 1694 aio_write = EIO_WRITE
960 PROTOTYPE: $$$$$;$
961 PPCODE: 1695 PPCODE:
962{ 1696{
963 aio_req req;
964 STRLEN svlen; 1697 STRLEN svlen;
1698 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
965 char *svptr = SvPVbyte (data, svlen); 1699 char *svptr = SvPVbyte (data, svlen);
966 1700 UV len = SvUV (length);
967 SvUPGRADE (data, SVt_PV);
968 SvPOK_on (data);
969 1701
970 if (dataoffset < 0) 1702 if (dataoffset < 0)
971 dataoffset += svlen; 1703 dataoffset += svlen;
972 1704
973 if (dataoffset < 0 || dataoffset > svlen) 1705 if (dataoffset < 0 || dataoffset > svlen)
974 croak ("data offset outside of string"); 1706 croak ("dataoffset outside of data scalar");
975 1707
976 if (ix == REQ_WRITE) 1708 if (ix == EIO_WRITE)
977 { 1709 {
978 /* write: check length and adjust. */ 1710 /* write: check length and adjust. */
979 if (length < 0 || length + dataoffset > svlen) 1711 if (!SvOK (length) || len + dataoffset > svlen)
980 length = svlen - dataoffset; 1712 len = svlen - dataoffset;
981 } 1713 }
982 else 1714 else
983 { 1715 {
984 /* read: grow scalar as necessary */ 1716 /* read: check type and grow scalar as necessary */
1717 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
985 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");
986 } 1721 }
987
988 if (length < 0)
989 croak ("length must not be negative");
990 1722
991 { 1723 {
992 dREQ; 1724 dREQ;
993 1725
994 req->type = ix; 1726 req->type = ix;
995 req->fh = newSVsv (fh); 1727 req->sv1 = newSVsv (fh);
996 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1728 req->int1 = fd;
997 : IoOFP (sv_2io (fh))); 1729 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
998 req->offset = offset; 1730 req->size = len;
999 req->length = length;
1000 req->data = SvREFCNT_inc (data); 1731 req->sv2 = SvREFCNT_inc (data);
1001 req->dataptr = (char *)svptr + dataoffset; 1732 req->ptr2 = (char *)svptr + dataoffset;
1733 req->stroffset = dataoffset;
1002 1734
1003 if (!SvREADONLY (data)) 1735 if (!SvREADONLY (data))
1004 { 1736 {
1005 SvREADONLY_on (data); 1737 SvREADONLY_on (data);
1006 req->data2ptr = (void *)data; 1738 req->flags |= FLAG_SV2_RO_OFF;
1007 } 1739 }
1008 1740
1009 REQ_SEND; 1741 REQ_SEND;
1010 } 1742 }
1011} 1743}
1012 1744
1013void 1745void
1014aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1746aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1015 SV * out_fh 1747 ALIAS:
1016 SV * in_fh 1748 aio_ioctl = EIO_IOCTL
1017 UV in_offset 1749 aio_fcntl = EIO_FCNTL
1018 UV length
1019 SV * callback
1020 PROTOTYPE: $$$$;$
1021 PPCODE: 1750 PPCODE:
1022{ 1751{
1023 dREQ; 1752 int fd = s_fileno_croak (fh, 0);
1753 char *svptr;
1024 1754
1025 req->type = REQ_SENDFILE; 1755 if (SvPOK (arg) || !SvNIOK (arg))
1026 req->fh = newSVsv (out_fh);
1027 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1028 req->fh2 = newSVsv (in_fh);
1029 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1030 req->offset = in_offset;
1031 req->length = length;
1032
1033 REQ_SEND;
1034}
1035
1036void
1037aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1038 SV * fh
1039 UV offset
1040 IV length
1041 SV * callback
1042 PROTOTYPE: $$$;$
1043 PPCODE:
1044{
1045 dREQ;
1046
1047 req->type = REQ_READAHEAD;
1048 req->fh = newSVsv (fh);
1049 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1050 req->offset = offset;
1051 req->length = length;
1052
1053 REQ_SEND;
1054}
1055
1056void
1057aio_stat (fh_or_path,callback=&PL_sv_undef)
1058 SV * fh_or_path
1059 SV * callback
1060 ALIAS:
1061 aio_stat = REQ_STAT
1062 aio_lstat = REQ_LSTAT
1063 PPCODE:
1064{
1065 dREQ;
1066
1067 New (0, req->statdata, 1, Stat_t);
1068 if (!req->statdata)
1069 { 1756 {
1070 req_free (req); 1757 STRLEN svlen;
1071 croak ("out of memory during aio_req->statdata allocation"); 1758 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1072 } 1759#ifdef IOCPARM_LEN
1760 STRLEN need = IOCPARM_LEN (request);
1761#else
1762 STRLEN need = 256;
1763#endif
1073 1764
1074 if (SvPOK (fh_or_path)) 1765 if (svlen < need)
1075 { 1766 svptr = SvGROW (arg, need);
1076 req->type = ix;
1077 req->data = newSVsv (fh_or_path);
1078 req->dataptr = SvPVbyte_nolen (req->data);
1079 } 1767 }
1080 else 1768 else
1769 svptr = (char *)SvIV (arg);
1770
1081 { 1771 {
1772 dREQ;
1773
1082 req->type = REQ_FSTAT; 1774 req->type = ix;
1083 req->fh = newSVsv (fh_or_path); 1775 req->sv1 = newSVsv (fh);
1084 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;
1085 } 1782 }
1783}
1784
1785void
1786aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1787 ALIAS:
1788 aio_readlink = EIO_READLINK
1789 aio_realpath = EIO_REALPATH
1790 PPCODE:
1791{
1792 dREQ;
1793
1794 req->type = ix;
1795 req_set_path1 (req, pathname);
1086 1796
1087 REQ_SEND; 1797 REQ_SEND;
1088} 1798}
1089 1799
1090void 1800void
1091aio_unlink (pathname,callback=&PL_sv_undef) 1801aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1092 SV * pathname 1802 PPCODE:
1093 SV * callback 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)
1094 ALIAS: 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
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:
1095 aio_unlink = REQ_UNLINK 1983 aio_unlink = EIO_UNLINK
1096 aio_rmdir = REQ_RMDIR 1984 aio_rmdir = EIO_RMDIR
1097 aio_readdir = REQ_READDIR 1985 aio_readdir = EIO_READDIR
1098 PPCODE: 1986 PPCODE:
1099{ 1987{
1100 dREQ; 1988 dREQ;
1101 1989
1102 req->type = ix; 1990 req->type = ix;
1103 req->data = newSVsv (pathname); 1991 req_set_path1 (req, pathname);
1104 req->dataptr = SvPVbyte_nolen (req->data); 1992
1105
1106 REQ_SEND; 1993 REQ_SEND;
1107} 1994}
1108 1995
1109void 1996void
1110aio_link (oldpath,newpath,callback=&PL_sv_undef) 1997aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1111 SV * oldpath
1112 SV * newpath
1113 SV * callback
1114 ALIAS: 1998 ALIAS:
1115 aio_link = REQ_LINK 1999 aio_link = EIO_LINK
1116 aio_symlink = REQ_SYMLINK 2000 aio_symlink = EIO_SYMLINK
1117 aio_rename = REQ_RENAME 2001 aio_rename = EIO_RENAME
1118 PPCODE: 2002 PPCODE:
1119{ 2003{
2004 eio_wd wd2 = 0;
1120 dREQ; 2005 dREQ;
1121 2006
1122 req->type = ix; 2007 req->type = ix;
1123 req->fh = newSVsv (oldpath); 2008 req_set_path1 (req, oldpath);
1124 req->data2ptr = SvPVbyte_nolen (req->fh); 2009 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1125 req->data = newSVsv (newpath); 2010 req->int3 = (long)wd2;
1126 req->dataptr = SvPVbyte_nolen (req->data);
1127 2011
1128 REQ_SEND; 2012 REQ_SEND;
1129} 2013}
1130 2014
1131void 2015void
1132aio_sleep (delay,callback=&PL_sv_undef) 2016aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1133 double delay
1134 SV * callback
1135 PPCODE: 2017 PPCODE:
1136{ 2018{
2019 eio_wd wd2 = 0;
1137 dREQ; 2020 dREQ;
1138 2021
1139 req->type = REQ_SLEEP; 2022 req->type = EIO_RENAME;
1140 req->fd = delay < 0. ? 0 : delay; 2023 req_set_path1 (req, oldpath);
1141 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 2024 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1142 2025 req->int2 = flags;
2026 req->int3 = (long)wd2;
2027
1143 REQ_SEND; 2028 REQ_SEND;
1144} 2029}
1145 2030
1146void 2031void
1147aio_group (callback=&PL_sv_undef) 2032aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1148 SV * callback 2033 PPCODE:
1149 PROTOTYPE: ;$ 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
1150 PPCODE: 2050 PPCODE:
1151{ 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);
1152 dREQ; 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
1153 req->type = REQ_GROUP; 2201 req->type = EIO_GROUP;
1154 req->grp_next = req;
1155 req->grp_prev = req;
1156 2202
2203 PUTBACK;
1157 req_send (req); 2204 req_submit (req);
2205 SPAGAIN;
2206
1158 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2207 XPUSHs (req_sv (req, aio_grp_stash));
1159} 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)
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;
1160 2244
1161void 2245void
1162flush () 2246flush ()
1163 PROTOTYPE:
1164 CODE: 2247 CODE:
1165 while (nreqs) 2248 while (eio_nreqs ())
1166 { 2249 {
1167 poll_wait (); 2250 poll_wait ();
1168 poll_cb (); 2251 poll_cb ();
1169 } 2252 }
1170 2253
1171void 2254int
1172poll() 2255poll ()
1173 PROTOTYPE:
1174 CODE: 2256 CODE:
1175 if (nreqs)
1176 {
1177 poll_wait (); 2257 poll_wait ();
1178 poll_cb (); 2258 RETVAL = poll_cb ();
1179 }
1180
1181int
1182poll_fileno()
1183 PROTOTYPE:
1184 CODE:
1185 RETVAL = respipe [0];
1186 OUTPUT: 2259 OUTPUT:
1187 RETVAL 2260 RETVAL
1188 2261
1189int 2262int
2263poll_fileno ()
2264 CODE:
2265 RETVAL = s_epipe_fd (&respipe);
2266 OUTPUT:
2267 RETVAL
2268
2269int
1190poll_cb(...) 2270poll_cb (...)
1191 PROTOTYPE: 2271 PROTOTYPE:
1192 CODE: 2272 CODE:
1193 RETVAL = poll_cb (); 2273 RETVAL = poll_cb ();
1194 OUTPUT: 2274 OUTPUT:
1195 RETVAL 2275 RETVAL
1196 2276
1197void 2277void
1198poll_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 ()
1199 PROTOTYPE: 2477 PROTOTYPE:
1200 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
1201 if (nreqs) 2608 if (salen)
1202 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
1203 2661
1204int 2662int
1205nreqs() 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)
1206 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)
1207 CODE: 2844 CODE:
1208 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;
1209 OUTPUT: 2873 OUTPUT:
1210 RETVAL 2874 RETVAL
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}
1211 2970
1212MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2971MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1213 2972
1214void 2973void
1215cancel (aio_req_ornot req) 2974cancel (aio_req_ornot req)
1216 PROTOTYPE:
1217 CODE: 2975 CODE:
1218 req_cancel (req); 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}
1219 2993
1220MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2994MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1221 2995
1222void 2996void
1223add (aio_req grp, ...) 2997add (aio_req grp, ...)
1224 PROTOTYPE: $;@
1225 PPCODE: 2998 PPCODE:
1226{ 2999{
1227 int i; 3000 int i;
3001
3002 if (grp->int1 == 2)
3003 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1228 3004
1229 for (i = 1; i < items; ++i ) 3005 for (i = 1; i < items; ++i )
1230 { 3006 {
3007 aio_req req;
3008
1231 if (GIMME_V != G_VOID) 3009 if (GIMME_V != G_VOID)
1232 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 3010 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1233 3011
1234 aio_req req = SvAIO_REQ (ST (i)); 3012 req = SvAIO_REQ (ST (i));
1235 printf ("req = %p\n", req);//D
1236 3013
1237 if (req) 3014 if (req)
1238 { 3015 eio_grp_add (grp, req);
1239 req->grp_prev = grp;
1240 req->grp_next = grp->grp_next;
1241 grp->grp_next->grp_prev = req;
1242 grp->grp_next = req;
1243
1244 req->grp = grp;
1245 }
1246 } 3016 }
1247} 3017}
1248 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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