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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 1.294 by root, Sat Apr 9 19:34:05 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}
399
400static void end_thread (void)
401{
402 aio_req req;
403 Newz (0, req, 1, aio_cb);
404 req->type = REQ_QUIT;
405
406 req_send (req);
407}
408
409static void min_parallel (int nthreads)
410{
411 if (wanted < nthreads)
412 wanted = nthreads;
413}
414
415static void max_parallel (int nthreads)
416{
417 int cur = started;
418
419 if (wanted > nthreads)
420 wanted = nthreads;
421
422 while (cur > wanted)
423 {
424 end_thread ();
425 cur--;
426 }
427
428 while (started > wanted)
429 {
430 poll_wait ();
431 poll_cb ();
432 }
433}
434
435static void create_pipe ()
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} 1079}
446 1080
447/*****************************************************************************/ 1081/*****************************************************************************/
448/* work around various missing functions */
449 1082
450#if !HAVE_PREADWRITE 1083static void
451# define pread aio_pread 1084ts_set (struct timespec *ts, NV value)
452# define pwrite aio_pwrite
453
454/*
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
461static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
462{ 1085{
463 ssize_t res; 1086 ts->tv_sec = value;
464 off_t ooffset; 1087 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
465
466 pthread_mutex_lock (&preadwritelock);
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} 1088}
475 1089
476static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1090static NV
1091ts_get (const struct timespec *ts)
477{ 1092{
478 ssize_t res; 1093 return ts->tv_sec + ts->tv_nsec * 1e-9;
479 off_t ooffset;
480
481 pthread_mutex_lock (&preadwritelock);
482 ooffset = lseek (fd, 0, SEEK_CUR);
483 lseek (fd, offset, SEEK_SET);
484 res = write (fd, buf, count);
485 lseek (fd, offset, SEEK_SET);
486 pthread_mutex_unlock (&preadwritelock);
487
488 return res;
489} 1094}
490#endif
491 1095
492#if !HAVE_FDATASYNC 1096/*****************************************************************************/
493# define fdatasync fsync
494#endif
495 1097
496#if !HAVE_READAHEAD 1098XS(boot_IO__AIO) ecb_cold;
497# define readahead aio_readahead
498 1099
499static ssize_t readahead (int fd, off_t offset, size_t count) 1100MODULE = IO::AIO PACKAGE = IO::AIO
500{
501 char readahead_buf[4096];
502 1101
503 while (count > 0) 1102PROTOTYPES: ENABLE
504 {
505 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
506 1103
507 pread (fd, readahead_buf, len, offset); 1104BOOT:
508 offset += len;
509 count -= len;
510 }
511
512 errno = 0;
513}
514#endif
515
516#if !HAVE_READDIR_R
517# define readdir_r aio_readdir_r
518
519static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
520
521static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
522{ 1105{
523 struct dirent *e; 1106 static const struct {
524 int errorno; 1107 const char *name;
1108 IV iv;
1109 } *civ, const_iv[] = {
1110# define const_niv(name, value) { # name, (IV) value },
1111# define const_iv(name) { # name, (IV) name },
1112# define const_eio(name) { # name, (IV) EIO_ ## name },
525 1113
526 pthread_mutex_lock (&readdirlock); 1114 /* you have to re-run ./gendef0 after adding/removing any constants here */
1115 /* the first block can be undef if missing */
1116 const_iv (ENOSYS)
1117 const_iv (EXDEV)
1118 const_iv (EBADR)
527 1119
528 e = readdir (dirp); 1120 /* for lseek */
529 errorno = errno; 1121 const_iv (SEEK_DATA)
1122 const_iv (SEEK_HOLE)
530 1123
531 if (e) 1124 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
532 { 1125 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
533 *res = ent; 1126 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
534 strcpy (ent->d_name, e->d_name); 1127 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
535 } 1128 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
536 else 1129 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
537 *res = 0;
538 1130
539 pthread_mutex_unlock (&readdirlock); 1131 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1132 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1133 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1134 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1135 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
540 1136
541 errno = errorno; 1137 /* the second block will be 0 when missing */
542 return e ? 0 : -1; 1138 const_iv (O_ACCMODE)
543}
544#endif
545 1139
546/* sendfile always needs emulation */ 1140 const_iv (O_RDONLY)
547static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) 1141 const_iv (O_WRONLY)
548{ 1142 const_iv (O_RDWR)
549 ssize_t res; 1143 const_iv (O_CREAT)
1144 const_iv (O_TRUNC)
1145 const_iv (O_EXCL)
1146 const_iv (O_APPEND)
550 1147
551 if (!count) 1148 const_iv (O_ASYNC)
552 return 0; 1149 const_iv (O_DIRECT)
1150 const_iv (O_NOATIME)
553 1151
554#if HAVE_SENDFILE 1152 const_iv (O_CLOEXEC)
555# if __linux 1153 const_iv (O_NOCTTY)
556 res = sendfile (ofd, ifd, &offset, count); 1154 const_iv (O_NOFOLLOW)
1155 const_iv (O_NONBLOCK)
1156 const_iv (O_EXEC)
1157 const_iv (O_SEARCH)
1158 const_iv (O_DIRECTORY)
1159 const_iv (O_DSYNC)
1160 const_iv (O_RSYNC)
1161 const_iv (O_SYNC)
1162 const_iv (O_PATH)
1163 const_iv (O_TMPFILE)
1164 const_iv (O_TTY_INIT)
557 1165
558# elif __freebsd 1166 const_iv (S_IFIFO)
559 /* 1167 const_iv (S_IFCHR)
560 * Of course, the freebsd sendfile is a dire hack with no thoughts 1168 const_iv (S_IFBLK)
561 * wasted on making it similar to other I/O functions. 1169 const_iv (S_IFLNK)
562 */ 1170 const_iv (S_IFREG)
1171 const_iv (S_IFDIR)
1172 const_iv (S_IFWHT)
1173 const_iv (S_IFSOCK)
1174 const_iv (S_IFMT)
1175
1176 const_iv (ST_RDONLY)
1177 const_iv (ST_NOSUID)
1178 const_iv (ST_NODEV)
1179 const_iv (ST_NOEXEC)
1180 const_iv (ST_SYNCHRONOUS)
1181 const_iv (ST_MANDLOCK)
1182 const_iv (ST_WRITE)
1183 const_iv (ST_APPEND)
1184 const_iv (ST_IMMUTABLE)
1185 const_iv (ST_NOATIME)
1186 const_iv (ST_NODIRATIME)
1187 const_iv (ST_RELATIME)
1188
1189 const_iv (PROT_NONE)
1190 const_iv (PROT_EXEC)
1191 const_iv (PROT_READ)
1192 const_iv (PROT_WRITE)
1193
1194 const_iv (MAP_PRIVATE)
1195 const_iv (MAP_SHARED)
1196 const_iv (MAP_FIXED)
1197 const_iv (MAP_ANONYMOUS)
1198
1199 /* linuxish */
1200 const_iv (MAP_LOCKED)
1201 const_iv (MAP_NORESERVE)
1202 const_iv (MAP_POPULATE)
1203 const_iv (MAP_NONBLOCK)
1204 const_iv (MAP_GROWSDOWN)
1205 const_iv (MAP_32BIT)
1206 const_iv (MAP_HUGETLB)
1207 const_iv (MAP_STACK)
1208 const_iv (MAP_FIXED_NOREPLACE)
1209 const_iv (MAP_SHARED_VALIDATE)
1210 const_iv (MAP_SYNC)
1211 const_iv (MAP_UNINITIALIZED)
1212
1213 const_iv (MREMAP_MAYMOVE)
1214 const_iv (MREMAP_FIXED)
1215
1216 const_iv (MSG_CMSG_CLOEXEC)
1217 const_iv (SOCK_CLOEXEC)
1218
1219 const_iv (F_DUPFD_CLOEXEC)
1220
1221 const_iv (F_ADD_SEALS)
1222 const_iv (F_GET_SEALS)
1223 const_iv (F_SEAL_SEAL)
1224 const_iv (F_SEAL_SHRINK)
1225 const_iv (F_SEAL_GROW)
1226 const_iv (F_SEAL_WRITE)
1227
1228 const_iv (F_OFD_GETLK)
1229 const_iv (F_OFD_SETLK)
1230 const_iv (F_OFD_GETLKW)
1231
1232 const_iv (FIFREEZE)
1233 const_iv (FITHAW)
1234 const_iv (FITRIM)
1235 const_iv (FICLONE)
1236 const_iv (FICLONERANGE)
1237 const_iv (FIDEDUPERANGE)
1238
1239 const_iv (FS_IOC_GETFLAGS)
1240 const_iv (FS_IOC_SETFLAGS)
1241 const_iv (FS_IOC_GETVERSION)
1242 const_iv (FS_IOC_SETVERSION)
1243 const_iv (FS_IOC_FIEMAP)
1244 const_iv (FS_IOC_FSGETXATTR)
1245 const_iv (FS_IOC_FSSETXATTR)
1246 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1247 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1248 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1249
1250 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1251
1252 const_iv (FS_SECRM_FL)
1253 const_iv (FS_UNRM_FL)
1254 const_iv (FS_COMPR_FL)
1255 const_iv (FS_SYNC_FL)
1256 const_iv (FS_IMMUTABLE_FL)
1257 const_iv (FS_APPEND_FL)
1258 const_iv (FS_NODUMP_FL)
1259 const_iv (FS_NOATIME_FL)
1260 const_iv (FS_DIRTY_FL)
1261 const_iv (FS_COMPRBLK_FL)
1262 const_iv (FS_NOCOMP_FL)
1263 const_iv (FS_ENCRYPT_FL)
1264 const_iv (FS_BTREE_FL)
1265 const_iv (FS_INDEX_FL)
1266 const_iv (FS_JOURNAL_DATA_FL)
1267 const_iv (FS_NOTAIL_FL)
1268 const_iv (FS_DIRSYNC_FL)
1269 const_iv (FS_TOPDIR_FL)
1270 const_iv (FS_FL_USER_MODIFIABLE)
1271
1272 const_iv (FS_XFLAG_REALTIME)
1273 const_iv (FS_XFLAG_PREALLOC)
1274 const_iv (FS_XFLAG_IMMUTABLE)
1275 const_iv (FS_XFLAG_APPEND)
1276 const_iv (FS_XFLAG_SYNC)
1277 const_iv (FS_XFLAG_NOATIME)
1278 const_iv (FS_XFLAG_NODUMP)
1279 const_iv (FS_XFLAG_RTINHERIT)
1280 const_iv (FS_XFLAG_PROJINHERIT)
1281 const_iv (FS_XFLAG_NOSYMLINKS)
1282 const_iv (FS_XFLAG_EXTSIZE)
1283 const_iv (FS_XFLAG_EXTSZINHERIT)
1284 const_iv (FS_XFLAG_NODEFRAG)
1285 const_iv (FS_XFLAG_FILESTREAM)
1286 const_iv (FS_XFLAG_DAX)
1287 const_iv (FS_XFLAG_HASATTR)
1288
1289 const_iv (FIEMAP_FLAG_SYNC)
1290 const_iv (FIEMAP_FLAG_XATTR)
1291 const_iv (FIEMAP_FLAGS_COMPAT)
1292 const_iv (FIEMAP_EXTENT_LAST)
1293 const_iv (FIEMAP_EXTENT_UNKNOWN)
1294 const_iv (FIEMAP_EXTENT_DELALLOC)
1295 const_iv (FIEMAP_EXTENT_ENCODED)
1296 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1297 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1298 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1299 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1300 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1301 const_iv (FIEMAP_EXTENT_MERGED)
1302 const_iv (FIEMAP_EXTENT_SHARED)
1303
1304 const_iv (SPLICE_F_MOVE)
1305 const_iv (SPLICE_F_NONBLOCK)
1306 const_iv (SPLICE_F_MORE)
1307 const_iv (SPLICE_F_GIFT)
1308
1309 const_iv (EFD_CLOEXEC)
1310 const_iv (EFD_NONBLOCK)
1311 const_iv (EFD_SEMAPHORE)
1312
1313 const_iv (MFD_CLOEXEC)
1314 const_iv (MFD_ALLOW_SEALING)
1315 const_iv (MFD_HUGETLB)
1316 const_iv (MFD_HUGETLB_2MB)
1317 const_iv (MFD_HUGETLB_1GB)
1318
1319 const_iv (CLOCK_REALTIME)
1320 const_iv (CLOCK_MONOTONIC)
1321 const_iv (CLOCK_BOOTTIME)
1322 const_iv (CLOCK_REALTIME_ALARM)
1323 const_iv (CLOCK_BOOTTIME_ALARM)
1324
1325 const_iv (TFD_NONBLOCK)
1326 const_iv (TFD_CLOEXEC)
1327
1328 const_iv (TFD_TIMER_ABSTIME)
1329 const_iv (TFD_TIMER_CANCEL_ON_SET)
1330
1331 const_iv (STATX_TYPE)
1332 const_iv (STATX_MODE)
1333 const_iv (STATX_NLINK)
1334 const_iv (STATX_UID)
1335 const_iv (STATX_GID)
1336 const_iv (STATX_ATIME)
1337 const_iv (STATX_MTIME)
1338 const_iv (STATX_CTIME)
1339 const_iv (STATX_INO)
1340 const_iv (STATX_SIZE)
1341 const_iv (STATX_BLOCKS)
1342 const_iv (STATX_BASIC_STATS)
1343 const_iv (STATX_ALL)
1344 const_iv (STATX_BTIME)
1345 const_iv (STATX_ATTR_COMPRESSED)
1346 const_iv (STATX_ATTR_IMMUTABLE)
1347 const_iv (STATX_ATTR_APPEND)
1348 const_iv (STATX_ATTR_NODUMP)
1349 const_iv (STATX_ATTR_ENCRYPTED)
1350 const_iv (STATX_ATTR_AUTOMOUNT)
1351
1352 const_iv (AT_FDCWD)
1353 const_iv (AT_SYMLINK_NOFOLLOW)
1354 const_iv (AT_EACCESS)
1355 const_iv (AT_REMOVEDIR)
1356 const_iv (AT_SYMLINK_FOLLOW)
1357 const_iv (AT_NO_AUTOMOUNT)
1358 const_iv (AT_EMPTY_PATH)
1359 const_iv (AT_STATX_SYNC_TYPE)
1360 const_iv (AT_STATX_AS_STAT)
1361 const_iv (AT_STATX_FORCE_SYNC)
1362 const_iv (AT_STATX_DONT_SYNC)
1363 const_iv (AT_RECURSIVE)
1364
1365 const_iv (OPEN_TREE_CLONE)
1366
1367 const_iv (FSOPEN_CLOEXEC)
1368
1369 const_iv (FSPICK_CLOEXEC)
1370 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1371 const_iv (FSPICK_NO_AUTOMOUNT)
1372 const_iv (FSPICK_EMPTY_PATH)
1373
1374 const_iv (MOVE_MOUNT_F_SYMLINKS)
1375 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1376 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1377 const_iv (MOVE_MOUNT_T_SYMLINKS)
1378 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1379 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1380
1381 /* waitid */
1382 const_iv (P_PID)
1383 const_iv (P_PIDFD)
1384 const_iv (P_PGID)
1385 const_iv (P_ALL)
1386
1387 const_iv (FSCONFIG_SET_FLAG)
1388 const_iv (FSCONFIG_SET_STRING)
1389 const_iv (FSCONFIG_SET_BINARY)
1390 const_iv (FSCONFIG_SET_PATH)
1391 const_iv (FSCONFIG_SET_PATH_EMPTY)
1392 const_iv (FSCONFIG_SET_FD)
1393 const_iv (FSCONFIG_CMD_CREATE)
1394 const_iv (FSCONFIG_CMD_RECONFIGURE)
1395
1396 const_iv (MOUNT_ATTR_RDONLY)
1397 const_iv (MOUNT_ATTR_NOSUID)
1398 const_iv (MOUNT_ATTR_NODEV)
1399 const_iv (MOUNT_ATTR_NOEXEC)
1400 const_iv (MOUNT_ATTR__ATIME)
1401 const_iv (MOUNT_ATTR_RELATIME)
1402 const_iv (MOUNT_ATTR_NOATIME)
1403 const_iv (MOUNT_ATTR_STRICTATIME)
1404 const_iv (MOUNT_ATTR_NODIRATIME)
1405
1406 /* these are libeio constants, and are independent of gendef0 */
1407 const_eio (SEEK_SET)
1408 const_eio (SEEK_CUR)
1409 const_eio (SEEK_END)
1410
1411 const_eio (MCL_FUTURE)
1412 const_eio (MCL_CURRENT)
1413 const_eio (MCL_ONFAULT)
1414
1415 const_eio (MS_ASYNC)
1416 const_eio (MS_INVALIDATE)
1417 const_eio (MS_SYNC)
1418
1419 const_eio (MT_MODIFY)
1420
1421 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1422 const_eio (SYNC_FILE_RANGE_WRITE)
1423 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1424
1425 const_eio (FALLOC_FL_KEEP_SIZE)
1426 const_eio (FALLOC_FL_PUNCH_HOLE)
1427 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1428 const_eio (FALLOC_FL_ZERO_RANGE)
1429 const_eio (FALLOC_FL_INSERT_RANGE)
1430 const_eio (FALLOC_FL_UNSHARE_RANGE)
1431
1432 const_eio (RENAME_NOREPLACE)
1433 const_eio (RENAME_EXCHANGE)
1434 const_eio (RENAME_WHITEOUT)
1435
1436 const_eio (READDIR_DENTS)
1437 const_eio (READDIR_DIRS_FIRST)
1438 const_eio (READDIR_STAT_ORDER)
1439 const_eio (READDIR_FOUND_UNKNOWN)
1440
1441 const_eio (DT_UNKNOWN)
1442 const_eio (DT_FIFO)
1443 const_eio (DT_CHR)
1444 const_eio (DT_DIR)
1445 const_eio (DT_BLK)
1446 const_eio (DT_REG)
1447 const_eio (DT_LNK)
1448 const_eio (DT_SOCK)
1449 const_eio (DT_WHT)
1450 };
1451
1452 aio_stash = gv_stashpv ("IO::AIO" , 1);
1453 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1454 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1455 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1456
1457 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1458 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1459
1460 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1461
1462 /* allocate dummy pipe fd for aio_close */
563 { 1463 {
564 off_t sbytes; 1464 int pipefd [2];
565 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
566 1465
567 if (res < 0 && sbytes) 1466 if (
568 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ 1467#ifdef _WIN32
569 res = sbytes; 1468 _pipe (pipefd, 1, _O_BINARY) < 0
1469#else
1470 pipe (pipefd) < 0
1471 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1472#endif
1473 || close (pipefd [1]) < 0
1474 )
1475 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1476
1477 close_fd = pipefd [0];
570 } 1478 }
571 1479
572# elif __hpux 1480 reinit ();
573 res = sendfile (ofd, ifd, offset, count, 0, 0); 1481}
574 1482
575# elif __solaris 1483void
1484reinit ()
1485 PROTOTYPE:
1486
1487void
1488max_poll_reqs (unsigned int nreqs)
1489 PROTOTYPE: $
1490 CODE:
1491 eio_set_max_poll_reqs (nreqs);
1492
1493void
1494max_poll_time (double nseconds)
1495 PROTOTYPE: $
1496 CODE:
1497 eio_set_max_poll_time (nseconds);
1498
1499void
1500min_parallel (unsigned int nthreads)
1501 PROTOTYPE: $
1502 CODE:
1503 eio_set_min_parallel (nthreads);
1504
1505void
1506max_parallel (unsigned int nthreads)
1507 PROTOTYPE: $
1508 CODE:
1509 eio_set_max_parallel (nthreads);
1510
1511void
1512max_idle (unsigned int nthreads)
1513 PROTOTYPE: $
1514 CODE:
1515 eio_set_max_idle (nthreads);
1516
1517void
1518idle_timeout (unsigned int seconds)
1519 PROTOTYPE: $
1520 CODE:
1521 eio_set_idle_timeout (seconds);
1522
1523void
1524max_outstanding (unsigned int maxreqs)
1525 PROTOTYPE: $
1526 CODE:
1527 max_outstanding = maxreqs;
1528
1529void
1530aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1531 PPCODE:
1532{
1533 dREQ;
1534
1535 req->type = EIO_WD_OPEN;
1536 req_set_path1 (req, pathname);
1537
1538 REQ_SEND;
1539}
1540
1541void
1542aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1543 PPCODE:
1544{
1545 dREQ;
1546
1547 req->type = EIO_OPEN;
1548 req_set_path1 (req, pathname);
1549 req->int1 = flags;
1550 req->int2 = mode;
1551
1552 REQ_SEND;
1553}
1554
1555void
1556aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1557 ALIAS:
1558 aio_fsync = EIO_FSYNC
1559 aio_fdatasync = EIO_FDATASYNC
1560 aio_syncfs = EIO_SYNCFS
1561 PPCODE:
1562{
1563 int fd = s_fileno_croak (fh, 0);
1564 dREQ;
1565
1566 req->type = ix;
1567 req->sv1 = newSVsv (fh);
1568 req->int1 = fd;
1569
1570 REQ_SEND;
1571}
1572
1573void
1574aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1575 PPCODE:
1576{
1577 int fd = s_fileno_croak (fh, 0);
1578 dREQ;
1579
1580 req->type = EIO_SYNC_FILE_RANGE;
1581 req->sv1 = newSVsv (fh);
1582 req->int1 = fd;
1583 req->offs = offset;
1584 req->size = nbytes;
1585 req->int2 = flags;
1586
1587 REQ_SEND;
1588}
1589
1590void
1591aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1592 PPCODE:
1593{
1594 int fd = s_fileno_croak (fh, 0);
1595 dREQ;
1596
1597 req->type = EIO_FALLOCATE;
1598 req->sv1 = newSVsv (fh);
1599 req->int1 = fd;
1600 req->int2 = mode;
1601 req->offs = offset;
1602 req->size = len;
1603
1604 REQ_SEND;
1605}
1606
1607void
1608aio_close (SV *fh, SV *callback = &PL_sv_undef)
1609 PPCODE:
1610{
1611 int fd = s_fileno_croak (fh, 0);
1612 dREQ;
1613#if 0
1614 /* partially duplicate logic in s_fileno */
1615 SvGETMAGIC (fh);
1616
1617 if (SvROK (fh))
576 { 1618 {
577 struct sendfilevec vec; 1619 fh = SvRV (fh);
578 size_t sbytes; 1620 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 } 1621 }
590 1622
591# endif 1623 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 { 1624 {
735 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 1625 /* perl filehandle */
736 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 1626 PerlIOUnix_refcnt_inc (fd);
1627 do_close ((GV *)fh, 1);
737 1628
738 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 1629 req->type = EIO_CLOSE;
739 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; 1630 req->int1 = fd;
740 1631 /*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 } 1632 }
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 1633 else
1634#endif
787 { 1635 {
788 rese = ress = req; 1636 /* fd number */
789 1637 req->type = EIO_DUP2;
790 /* write a dummy byte to the pipe so fh becomes ready */ 1638 req->int1 = close_fd;
791 write (respipe [1], &respipe, 1); 1639 req->sv2 = newSVsv (fh);
1640 req->int2 = fd;
792 } 1641 }
793 1642
794 pthread_mutex_unlock (&reslock); 1643 REQ_SEND;
795 }
796 while (type != REQ_QUIT);
797
798 return 0;
799} 1644}
800 1645
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 1646void
892min_parallel (nthreads) 1647aio_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: 1648 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: $$$;$
916 PPCODE:
917{ 1649{
1650 int fd = s_fileno_croak (fh, 0);
918 dREQ; 1651 dREQ;
919 1652
920 req->type = REQ_OPEN; 1653 req->type = EIO_SEEK;
921 req->data = newSVsv (pathname); 1654 req->sv1 = newSVsv (fh);
922 req->dataptr = SvPVbyte_nolen (req->data); 1655 req->int1 = fd;
923 req->fd = flags; 1656 req->offs = SvVAL64 (offset);
924 req->mode = mode; 1657 req->int2 = whence;
925 1658
926 REQ_SEND; 1659 REQ_SEND;
927} 1660}
928 1661
929void 1662void
930aio_close (fh,callback=&PL_sv_undef) 1663aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
931 SV * fh
932 SV * callback
933 PROTOTYPE: $;$
934 ALIAS: 1664 ALIAS:
935 aio_close = REQ_CLOSE
936 aio_fsync = REQ_FSYNC
937 aio_fdatasync = REQ_FDATASYNC
938 PPCODE:
939{
940 dREQ;
941
942 req->type = ix;
943 req->fh = newSVsv (fh);
944 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
945
946 REQ_SEND (req);
947}
948
949void
950aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
951 SV * fh
952 UV offset
953 UV length
954 SV * data
955 UV dataoffset
956 SV * callback
957 ALIAS:
958 aio_read = REQ_READ 1665 aio_read = EIO_READ
959 aio_write = REQ_WRITE 1666 aio_write = EIO_WRITE
960 PROTOTYPE: $$$$$;$
961 PPCODE: 1667 PPCODE:
962{ 1668{
963 aio_req req;
964 STRLEN svlen; 1669 STRLEN svlen;
1670 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
965 char *svptr = SvPVbyte (data, svlen); 1671 char *svptr = SvPVbyte (data, svlen);
966 1672 UV len = SvUV (length);
967 SvUPGRADE (data, SVt_PV);
968 SvPOK_on (data);
969 1673
970 if (dataoffset < 0) 1674 if (dataoffset < 0)
971 dataoffset += svlen; 1675 dataoffset += svlen;
972 1676
973 if (dataoffset < 0 || dataoffset > svlen) 1677 if (dataoffset < 0 || dataoffset > svlen)
974 croak ("data offset outside of string"); 1678 croak ("dataoffset outside of data scalar");
975 1679
976 if (ix == REQ_WRITE) 1680 if (ix == EIO_WRITE)
977 { 1681 {
978 /* write: check length and adjust. */ 1682 /* write: check length and adjust. */
979 if (length < 0 || length + dataoffset > svlen) 1683 if (!SvOK (length) || len + dataoffset > svlen)
980 length = svlen - dataoffset; 1684 len = svlen - dataoffset;
981 } 1685 }
982 else 1686 else
983 { 1687 {
984 /* read: grow scalar as necessary */ 1688 /* read: check type and grow scalar as necessary */
1689 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
985 svptr = SvGROW (data, length + dataoffset); 1690 svptr = sv_grow (data, len + dataoffset + 1);
1691 else if (SvCUR (data) < len + dataoffset)
1692 croak ("length + dataoffset outside of scalar, and cannot grow");
986 } 1693 }
987
988 if (length < 0)
989 croak ("length must not be negative");
990 1694
991 { 1695 {
992 dREQ; 1696 dREQ;
993 1697
994 req->type = ix; 1698 req->type = ix;
995 req->fh = newSVsv (fh); 1699 req->sv1 = newSVsv (fh);
996 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1700 req->int1 = fd;
997 : IoOFP (sv_2io (fh))); 1701 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
998 req->offset = offset; 1702 req->size = len;
999 req->length = length;
1000 req->data = SvREFCNT_inc (data); 1703 req->sv2 = SvREFCNT_inc (data);
1001 req->dataptr = (char *)svptr + dataoffset; 1704 req->ptr2 = (char *)svptr + dataoffset;
1705 req->stroffset = dataoffset;
1002 1706
1003 if (!SvREADONLY (data)) 1707 if (!SvREADONLY (data))
1004 { 1708 {
1005 SvREADONLY_on (data); 1709 SvREADONLY_on (data);
1006 req->data2ptr = (void *)data; 1710 req->flags |= FLAG_SV2_RO_OFF;
1007 } 1711 }
1008 1712
1009 REQ_SEND; 1713 REQ_SEND;
1010 } 1714 }
1011} 1715}
1012 1716
1013void 1717void
1014aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1718aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1015 SV * out_fh 1719 ALIAS:
1016 SV * in_fh 1720 aio_ioctl = EIO_IOCTL
1017 UV in_offset 1721 aio_fcntl = EIO_FCNTL
1018 UV length
1019 SV * callback
1020 PROTOTYPE: $$$$;$
1021 PPCODE: 1722 PPCODE:
1022{ 1723{
1023 dREQ; 1724 int fd = s_fileno_croak (fh, 0);
1725 char *svptr;
1024 1726
1025 req->type = REQ_SENDFILE; 1727 if (SvPOK (arg) || !SvNIOK (arg))
1026 req->fh = newSVsv (out_fh);
1027 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1028 req->fh2 = newSVsv (in_fh);
1029 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1030 req->offset = in_offset;
1031 req->length = length;
1032
1033 REQ_SEND;
1034}
1035
1036void
1037aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1038 SV * fh
1039 UV offset
1040 IV length
1041 SV * callback
1042 PROTOTYPE: $$$;$
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 { 1728 {
1070 req_free (req); 1729 STRLEN svlen;
1071 croak ("out of memory during aio_req->statdata allocation"); 1730 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1072 } 1731#ifdef IOCPARM_LEN
1732 STRLEN need = IOCPARM_LEN (request);
1733#else
1734 STRLEN need = 256;
1735#endif
1073 1736
1074 if (SvPOK (fh_or_path)) 1737 if (svlen < need)
1075 { 1738 svptr = SvGROW (arg, need);
1076 req->type = ix;
1077 req->data = newSVsv (fh_or_path);
1078 req->dataptr = SvPVbyte_nolen (req->data);
1079 } 1739 }
1080 else 1740 else
1741 svptr = (char *)SvIV (arg);
1742
1081 { 1743 {
1744 dREQ;
1745
1082 req->type = REQ_FSTAT; 1746 req->type = ix;
1083 req->fh = newSVsv (fh_or_path); 1747 req->sv1 = newSVsv (fh);
1084 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1748 req->int1 = fd;
1749 req->int2 = (long)request;
1750 req->sv2 = SvREFCNT_inc (arg);
1751 req->ptr2 = svptr;
1752
1753 REQ_SEND;
1085 } 1754 }
1755}
1756
1757void
1758aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1759 ALIAS:
1760 aio_readlink = EIO_READLINK
1761 aio_realpath = EIO_REALPATH
1762 PPCODE:
1763{
1764 dREQ;
1765
1766 req->type = ix;
1767 req_set_path1 (req, pathname);
1086 1768
1087 REQ_SEND; 1769 REQ_SEND;
1088} 1770}
1089 1771
1090void 1772void
1091aio_unlink (pathname,callback=&PL_sv_undef) 1773aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1092 SV * pathname 1774 PPCODE:
1093 SV * callback 1775{
1776 int ifd = s_fileno_croak (in_fh , 0);
1777 int ofd = s_fileno_croak (out_fh, 1);
1778 dREQ;
1779
1780 req->type = EIO_SENDFILE;
1781 req->sv1 = newSVsv (out_fh);
1782 req->int1 = ofd;
1783 req->sv2 = newSVsv (in_fh);
1784 req->int2 = ifd;
1785 req->offs = in_offset;
1786 req->size = length;
1787
1788 REQ_SEND;
1789}
1790
1791void
1792aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1793 PPCODE:
1794{
1795 int fd = s_fileno_croak (fh, 0);
1796 dREQ;
1797
1798 req->type = EIO_READAHEAD;
1799 req->sv1 = newSVsv (fh);
1800 req->int1 = fd;
1801 req->offs = offset;
1802 req->size = length;
1803
1804 REQ_SEND;
1805}
1806
1807void
1808aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1094 ALIAS: 1809 ALIAS:
1810 aio_stat = EIO_STAT
1811 aio_lstat = EIO_LSTAT
1812 aio_statvfs = EIO_STATVFS
1813 PPCODE:
1814{
1815 dREQ;
1816
1817 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1818
1819 REQ_SEND;
1820}
1821
1822void
1823st_xtime ()
1824 ALIAS:
1825 st_atime = 0x01
1826 st_mtime = 0x02
1827 st_ctime = 0x04
1828 st_btime = 0x08
1829 st_xtime = 0x0f
1830 PPCODE:
1831 EXTEND (SP, 4);
1832 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1833 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1834 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1835 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1836
1837void
1838st_xtimensec ()
1839 ALIAS:
1840 st_atimensec = 0x01
1841 st_mtimensec = 0x02
1842 st_ctimensec = 0x04
1843 st_btimensec = 0x08
1844 st_xtimensec = 0x0f
1845 st_btimesec = 0x10
1846 st_gen = 0x20
1847 PPCODE:
1848 EXTEND (SP, 4);
1849 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1850 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1851 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1852 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1853 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1854 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1855
1856UV
1857major (UV dev)
1858 ALIAS:
1859 minor = 1
1860 CODE:
1861 RETVAL = ix ? minor (dev) : major (dev);
1862 OUTPUT:
1863 RETVAL
1864
1865UV
1866makedev (UV maj, UV min)
1867 CODE:
1868 RETVAL = makedev (maj, min);
1869 OUTPUT:
1870 RETVAL
1871
1872void
1873aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1874 PPCODE:
1875{
1876 dREQ;
1877
1878 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1879 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1880 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1881
1882 REQ_SEND;
1883}
1884
1885void
1886aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1887 PPCODE:
1888{
1889 dREQ;
1890
1891 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1892 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1893
1894 REQ_SEND;
1895}
1896
1897void
1898aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1899 PPCODE:
1900{
1901 dREQ;
1902
1903 req->int2 = mode;
1904 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1905
1906 REQ_SEND;
1907}
1908
1909void
1910aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1911 PPCODE:
1912{
1913 dREQ;
1914
1915 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1916 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1917 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1918
1919 REQ_SEND;
1920}
1921
1922void
1923aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1924 PPCODE:
1925{
1926 dREQ;
1927
1928 req->type = EIO_READDIR;
1929 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1930
1931 if (flags & EIO_READDIR_DENTS)
1932 req->int1 |= EIO_READDIR_CUSTOM2;
1933
1934 req_set_path1 (req, pathname);
1935
1936 REQ_SEND;
1937}
1938
1939void
1940aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1941 PPCODE:
1942{
1943 dREQ;
1944
1945 req->type = EIO_MKDIR;
1946 req->int2 = mode;
1947 req_set_path1 (req, pathname);
1948
1949 REQ_SEND;
1950}
1951
1952void
1953aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1954 ALIAS:
1095 aio_unlink = REQ_UNLINK 1955 aio_unlink = EIO_UNLINK
1096 aio_rmdir = REQ_RMDIR 1956 aio_rmdir = EIO_RMDIR
1097 aio_readdir = REQ_READDIR 1957 aio_readdir = EIO_READDIR
1098 PPCODE: 1958 PPCODE:
1099{ 1959{
1100 dREQ; 1960 dREQ;
1101 1961
1102 req->type = ix; 1962 req->type = ix;
1103 req->data = newSVsv (pathname); 1963 req_set_path1 (req, pathname);
1104 req->dataptr = SvPVbyte_nolen (req->data); 1964
1105
1106 REQ_SEND; 1965 REQ_SEND;
1107} 1966}
1108 1967
1109void 1968void
1110aio_link (oldpath,newpath,callback=&PL_sv_undef) 1969aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1111 SV * oldpath
1112 SV * newpath
1113 SV * callback
1114 ALIAS: 1970 ALIAS:
1115 aio_link = REQ_LINK 1971 aio_link = EIO_LINK
1116 aio_symlink = REQ_SYMLINK 1972 aio_symlink = EIO_SYMLINK
1117 aio_rename = REQ_RENAME 1973 aio_rename = EIO_RENAME
1118 PPCODE: 1974 PPCODE:
1119{ 1975{
1976 eio_wd wd2 = 0;
1120 dREQ; 1977 dREQ;
1121 1978
1122 req->type = ix; 1979 req->type = ix;
1123 req->fh = newSVsv (oldpath); 1980 req_set_path1 (req, oldpath);
1124 req->data2ptr = SvPVbyte_nolen (req->fh); 1981 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1125 req->data = newSVsv (newpath); 1982 req->int3 = (long)wd2;
1126 req->dataptr = SvPVbyte_nolen (req->data);
1127 1983
1128 REQ_SEND; 1984 REQ_SEND;
1129} 1985}
1130 1986
1131void 1987void
1132aio_sleep (delay,callback=&PL_sv_undef) 1988aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1133 double delay
1134 SV * callback
1135 PPCODE: 1989 PPCODE:
1136{ 1990{
1991 eio_wd wd2 = 0;
1137 dREQ; 1992 dREQ;
1138 1993
1139 req->type = REQ_SLEEP; 1994 req->type = EIO_RENAME;
1140 req->fd = delay < 0. ? 0 : delay; 1995 req_set_path1 (req, oldpath);
1141 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1996 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1142 1997 req->int2 = flags;
1998 req->int3 = (long)wd2;
1999
1143 REQ_SEND; 2000 REQ_SEND;
1144} 2001}
1145 2002
1146void 2003void
1147aio_group (callback=&PL_sv_undef) 2004aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1148 SV * callback 2005 PPCODE:
1149 PROTOTYPE: ;$ 2006{
2007 dREQ;
2008
2009 req->type = EIO_MKNOD;
2010 req->int2 = (mode_t)mode;
2011 req->offs = dev;
2012 req_set_path1 (req, pathname);
2013
2014 REQ_SEND;
2015}
2016
2017void
2018aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
2019 ALIAS:
2020 aio_mtouch = EIO_MTOUCH
2021 aio_msync = EIO_MSYNC
1150 PPCODE: 2022 PPCODE:
1151{ 2023{
2024 STRLEN svlen;
2025 char *svptr = SvPVbyte (data, svlen);
2026 UV len = SvUV (length);
2027
2028 if (flags < 0)
2029 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
2030
2031 if (offset < 0)
2032 offset += svlen;
2033
2034 if (offset < 0 || offset > svlen)
2035 croak ("offset outside of scalar");
2036
2037 if (!SvOK (length) || len + offset > svlen)
2038 len = svlen - offset;
2039
2040 {
2041 dREQ;
2042
2043 req->type = ix;
2044 req->sv2 = SvREFCNT_inc (data);
2045 req->ptr2 = (char *)svptr + offset;
2046 req->size = len;
2047 req->int1 = flags;
2048
2049 REQ_SEND;
2050 }
2051}
2052
2053void
2054aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2055 PPCODE:
2056{
2057 STRLEN svlen;
2058 char *svptr = SvPVbyte (data, svlen);
2059 UV len = SvUV (length);
2060
2061 if (offset < 0)
2062 offset += svlen;
2063
2064 if (offset < 0 || offset > svlen)
2065 croak ("offset outside of scalar");
2066
2067 if (!SvOK (length) || len + offset > svlen)
2068 len = svlen - offset;
2069
2070 {
2071 dREQ;
2072
2073 req->type = EIO_MLOCK;
2074 req->sv2 = SvREFCNT_inc (data);
2075 req->ptr2 = (char *)svptr + offset;
2076 req->size = len;
2077
2078 REQ_SEND;
2079 }
2080}
2081
2082void
2083aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2084 PPCODE:
2085{
2086 dREQ;
2087
2088 req->type = EIO_MLOCKALL;
2089 req->int1 = flags;
2090
2091 REQ_SEND;
2092}
2093
2094void
2095aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2096 PPCODE:
2097{
2098 int fd = s_fileno_croak (fh, 0);
1152 dREQ; 2099 dREQ;
2100
2101 req->type = EIO_CUSTOM;
2102 req->sv1 = newSVsv (fh);
2103 req->int1 = fd;
2104
2105 req->feed = fiemap;
2106#if HAVE_FIEMAP
2107 /* keep our fingers crossed that the next two types are 64 bit */
2108 req->offs = start;
2109 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2110 req->int2 = flags;
2111 req->int3 = SvOK (count) ? SvIV (count) : -1;
2112#endif
2113
2114 REQ_SEND;
2115}
2116
2117void
2118aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
2119 PPCODE:
2120{
2121 char *svptr = 0;
2122
2123 sv_clear_foreign (data);
2124
2125 if (length) /* known length, directly read into scalar */
2126 {
2127 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2128 svptr = sv_grow (data, length + 1);
2129 else if (SvCUR (data) < length)
2130 croak ("length outside of scalar, and cannot grow");
2131 else
2132 svptr = SvPVbyte_nolen (data);
2133 }
2134
2135 {
2136 dREQ;
2137
2138 req->type = EIO_SLURP;
2139 req_set_path1 (req, pathname);
2140 req->offs = offset;
2141 req->size = length;
2142 req->sv2 = SvREFCNT_inc (data);
2143 req->ptr2 = svptr;
2144
2145 if (!SvREADONLY (data))
2146 {
2147 SvREADONLY_on (data);
2148 req->flags |= FLAG_SV2_RO_OFF;
2149 }
2150
2151 REQ_SEND;
2152 }
2153}
2154
2155void
2156aio_busy (double delay, SV *callback = &PL_sv_undef)
2157 PPCODE:
2158{
2159 dREQ;
2160
2161 req->type = EIO_BUSY;
2162 req->nv1 = delay < 0. ? 0. : delay;
2163
2164 REQ_SEND;
2165}
2166
2167void
2168aio_group (SV *callback = &PL_sv_undef)
2169 PPCODE:
2170{
2171 dREQ;
2172
1153 req->type = REQ_GROUP; 2173 req->type = EIO_GROUP;
1154 req->grp_next = req;
1155 req->grp_prev = req;
1156 2174
2175 PUTBACK;
1157 req_send (req); 2176 req_submit (req);
2177 SPAGAIN;
2178
1158 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2179 XPUSHs (req_sv (req, aio_grp_stash));
1159} 2180}
2181
2182void
2183aio_nop (SV *callback = &PL_sv_undef)
2184 ALIAS:
2185 aio_nop = EIO_NOP
2186 aio_sync = EIO_SYNC
2187 PPCODE:
2188{
2189 dREQ;
2190
2191 req->type = ix;
2192
2193 REQ_SEND;
2194}
2195
2196int
2197aioreq_pri (int pri = NO_INIT)
2198 CODE:
2199 RETVAL = next_pri;
2200 if (items > 0)
2201 {
2202 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
2203 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
2204 next_pri = pri;
2205 }
2206 OUTPUT:
2207 RETVAL
2208
2209void
2210aioreq_nice (int nice = 0)
2211 CODE:
2212 nice = next_pri - nice;
2213 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
2214 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
2215 next_pri = nice;
1160 2216
1161void 2217void
1162flush () 2218flush ()
1163 PROTOTYPE:
1164 CODE: 2219 CODE:
1165 while (nreqs) 2220 while (eio_nreqs ())
1166 { 2221 {
1167 poll_wait (); 2222 poll_wait ();
1168 poll_cb (); 2223 poll_cb ();
1169 } 2224 }
1170 2225
1171void 2226int
1172poll() 2227poll ()
1173 PROTOTYPE:
1174 CODE: 2228 CODE:
1175 if (nreqs)
1176 {
1177 poll_wait (); 2229 poll_wait ();
1178 poll_cb (); 2230 RETVAL = poll_cb ();
1179 }
1180
1181int
1182poll_fileno()
1183 PROTOTYPE:
1184 CODE:
1185 RETVAL = respipe [0];
1186 OUTPUT: 2231 OUTPUT:
1187 RETVAL 2232 RETVAL
1188 2233
1189int 2234int
2235poll_fileno ()
2236 CODE:
2237 RETVAL = s_epipe_fd (&respipe);
2238 OUTPUT:
2239 RETVAL
2240
2241int
1190poll_cb(...) 2242poll_cb (...)
1191 PROTOTYPE: 2243 PROTOTYPE:
1192 CODE: 2244 CODE:
1193 RETVAL = poll_cb (); 2245 RETVAL = poll_cb ();
1194 OUTPUT: 2246 OUTPUT:
1195 RETVAL 2247 RETVAL
1196 2248
1197void 2249void
1198poll_wait() 2250poll_wait ()
2251 CODE:
2252 poll_wait ();
2253
2254int
2255nreqs ()
2256 CODE:
2257 RETVAL = eio_nreqs ();
2258 OUTPUT:
2259 RETVAL
2260
2261int
2262nready ()
2263 CODE:
2264 RETVAL = eio_nready ();
2265 OUTPUT:
2266 RETVAL
2267
2268int
2269npending ()
2270 CODE:
2271 RETVAL = eio_npending ();
2272 OUTPUT:
2273 RETVAL
2274
2275int
2276nthreads ()
2277 CODE:
2278 RETVAL = eio_nthreads ();
2279 OUTPUT:
2280 RETVAL
2281
2282int
2283fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2284 CODE:
2285 RETVAL = posix_fadvise (fh, offset, length, advice);
2286 OUTPUT:
2287 RETVAL
2288
2289IV
2290sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2291 CODE:
2292 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2293 OUTPUT:
2294 RETVAL
2295
2296void
2297mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2298 PPCODE:
2299 sv_clear_foreign (scalar);
2300{
2301 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2302 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2303 if (addr == (void *)-1)
2304 XSRETURN_NO;
2305
2306 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2307
2308 if (!(prot & PROT_WRITE))
2309 SvREADONLY_on (scalar);
2310
2311 XSRETURN_YES;
2312}
2313
2314void
2315munmap (SV *scalar)
2316 CODE:
2317 sv_clear_foreign (scalar);
2318
2319SV *
2320mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2321 CODE:
2322{
2323 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2324 void *new;
2325
2326 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2327 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2328
2329 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2330
2331 RETVAL = &PL_sv_no;
2332
2333 if (new != (void *)-1)
2334 {
2335 RETVAL = new == (void *)mg->mg_ptr
2336 ? newSVpvn ("0 but true", 10)
2337 : &PL_sv_yes;
2338
2339 mg->mg_ptr = (char *)new;
2340 mg->mg_obj = (SV *)new_length;
2341
2342 SvPVX (scalar) = mg->mg_ptr;
2343 SvCUR_set (scalar, new_length);
2344 }
2345}
2346 OUTPUT:
2347 RETVAL
2348
2349int
2350madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2351 ALIAS:
2352 mprotect = 1
2353 CODE:
2354{
2355 STRLEN svlen;
2356 void *addr = SvPVbyte (scalar, svlen);
2357 STRLEN len = SvUV (length);
2358
2359 if (offset < 0)
2360 offset += svlen;
2361
2362 if (offset < 0 || offset > svlen)
2363 croak ("offset outside of scalar");
2364
2365 if (!SvOK (length) || len + offset > svlen)
2366 len = svlen - offset;
2367
2368 addr = (void *)(((intptr_t)addr) + offset);
2369 eio_page_align (&addr, &len);
2370
2371 switch (ix)
2372 {
2373 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2374 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2375 }
2376}
2377 OUTPUT:
2378 RETVAL
2379
2380int
2381munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2382 CODE:
2383{
2384 STRLEN svlen;
2385 void *addr = SvPVbyte (scalar, svlen);
2386 size_t len = SvUV (length);
2387
2388 if (offset < 0)
2389 offset += svlen;
2390
2391 if (offset < 0 || offset > svlen)
2392 croak ("offset outside of scalar");
2393
2394 if (!SvOK (length) || len + offset > svlen)
2395 len = svlen - offset;
2396
2397 addr = (void *)(((intptr_t)addr) + offset);
2398 eio_page_align (&addr, &len);
2399#if _POSIX_MEMLOCK_RANGE
2400 RETVAL = munlock (addr, len);
2401#else
2402 RETVAL = EIO_ENOSYS ();
2403#endif
2404}
2405 OUTPUT:
2406 RETVAL
2407
2408int
2409mlockall (int flags)
2410 PROTOTYPE: $;
2411 CODE:
2412 RETVAL = eio_mlockall_sync (flags);
2413 OUTPUT:
2414 RETVAL
2415
2416int
2417munlockall ()
2418 CODE:
2419#if _POSIX_MEMLOCK
2420 munlockall ();
2421#else
2422 RETVAL = EIO_ENOSYS ();
2423#endif
2424 OUTPUT:
2425 RETVAL
2426
2427int
2428statx (SV8 *pathname, int flags, UV mask)
2429 CODE:
2430{
2431 /* undocumented, and might go away, and anyway, should use eio_statx */
2432 SV *wdsv = 0;
2433 SV *pathsv = 0;
2434 eio_wd wd = EIO_CWD;
2435 void *ptr;
2436 int res;
2437
2438 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2439 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2440
2441 SvREFCNT_dec (pathsv);
2442 SvREFCNT_dec (wdsv);
2443}
2444 OUTPUT:
2445 RETVAL
2446
2447U32
2448stx_mode ()
1199 PROTOTYPE: 2449 PROTOTYPE:
1200 CODE: 2450 CODE:
2451#if HAVE_STATX
2452 RETVAL = stx.stx_mode;
2453#else
2454 XSRETURN_UNDEF;
2455#endif
2456 OUTPUT:
2457 RETVAL
2458
2459#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2460#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2461#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2462#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2463#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2464#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2465#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2466#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2467#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2468#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2469#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2470#define STATX_OFFSET_size statx_offsetof (stx_size)
2471#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2472#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2473#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2474#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2475#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2476#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2477
2478U32
2479stx_mask ()
2480 PROTOTYPE:
2481 ALIAS:
2482 stx_mask = STATX_OFFSET_mask
2483 stx_blksize = STATX_OFFSET_blksize
2484 stx_nlink = STATX_OFFSET_nlink
2485 stx_uid = STATX_OFFSET_uid
2486 stx_gid = STATX_OFFSET_gid
2487 stx_rdev_major = STATX_OFFSET_rdev_major
2488 stx_rdev_minor = STATX_OFFSET_rdev_minor
2489 stx_dev_major = STATX_OFFSET_dev_major
2490 stx_dev_minor = STATX_OFFSET_dev_minor
2491 CODE:
2492#if HAVE_STATX
2493 RETVAL = *(__u32 *)((char *)&stx + ix);
2494#else
2495 XSRETURN_UNDEF;
2496#endif
2497 OUTPUT:
2498 RETVAL
2499
2500VAL64
2501stx_attributes ()
2502 PROTOTYPE:
2503 ALIAS:
2504 stx_attributes = STATX_OFFSET_attributes
2505 stx_ino = STATX_OFFSET_ino
2506 stx_size = STATX_OFFSET_size
2507 stx_blocks = STATX_OFFSET_blocks
2508 stx_attributes_mask = STATX_OFFSET_attributes_mask
2509 CODE:
2510#if HAVE_STATX
2511 RETVAL = *(__u64 *)((char *)&stx + ix);
2512#else
2513 XSRETURN_UNDEF;
2514#endif
2515 OUTPUT:
2516 RETVAL
2517
2518NV
2519stx_atime ()
2520 PROTOTYPE:
2521 ALIAS:
2522 stx_atime = STATX_OFFSET_atime
2523 stx_btime = STATX_OFFSET_btime
2524 stx_ctime = STATX_OFFSET_ctime
2525 stx_mtime = STATX_OFFSET_mtime
2526 CODE:
2527#if HAVE_STATX
2528 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2529 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2530#else
2531 XSRETURN_UNDEF;
2532#endif
2533 OUTPUT:
2534 RETVAL
2535
2536VAL64
2537stx_atimesec ()
2538 PROTOTYPE:
2539 ALIAS:
2540 stx_atimesec = STATX_OFFSET_atime
2541 stx_btimesec = STATX_OFFSET_btime
2542 stx_ctimesec = STATX_OFFSET_ctime
2543 stx_mtimesec = STATX_OFFSET_mtime
2544 CODE:
2545#if HAVE_STATX
2546 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2547 RETVAL = ts->tv_sec;
2548#else
2549 XSRETURN_UNDEF;
2550#endif
2551 OUTPUT:
2552 RETVAL
2553
2554U32
2555stx_atimensec ()
2556 PROTOTYPE:
2557 ALIAS:
2558 stx_atimensec = STATX_OFFSET_atime
2559 stx_btimensec = STATX_OFFSET_btime
2560 stx_ctimensec = STATX_OFFSET_ctime
2561 stx_mtimensec = STATX_OFFSET_mtime
2562 CODE:
2563#if HAVE_STATX
2564 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2565 RETVAL = ts->tv_nsec;
2566#else
2567 RETVAL = 0;
2568#endif
2569 OUTPUT:
2570 RETVAL
2571
2572void
2573accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2574 PPCODE:
2575{
2576 SV *retval;
2577#if HAVE_ACCEPT4
2578 socklen_t salen_ = salen ? salen + 1 : 0;
2579
1201 if (nreqs) 2580 if (salen)
1202 poll_wait (); 2581 {
2582 sv_upgrade (sockaddr, SVt_PV);
2583 sv_grow (sockaddr, salen_);
2584 }
2585
2586 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2587
2588 retval = newmortalFH (res, O_RDWR);
2589
2590 if (res >= 0 && salen > 0)
2591 {
2592 if (salen_ > salen + 1)
2593 salen_ = salen + 1;
2594
2595 SvPOK_only (sockaddr);
2596 SvCUR_set (sockaddr, salen_);
2597 }
2598#else
2599 errno = ENOSYS;
2600 retval = &PL_sv_undef;
2601#endif
2602 XPUSHs (retval);
2603}
2604
2605ssize_t
2606splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2607 CODE:
2608{
2609#if HAVE_LINUX_SPLICE
2610 loff_t off_in_, off_out_;
2611 RETVAL = splice (
2612 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2613 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2614 length, flags
2615 );
2616#else
2617 RETVAL = EIO_ENOSYS ();
2618#endif
2619}
2620 OUTPUT:
2621 RETVAL
2622
2623ssize_t
2624tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2625 CODE:
2626#if HAVE_LINUX_SPLICE
2627 RETVAL = tee (rfh, wfh, length, flags);
2628#else
2629 RETVAL = EIO_ENOSYS ();
2630#endif
2631 OUTPUT:
2632 RETVAL
1203 2633
1204int 2634int
1205nreqs() 2635pipesize (aio_rfd rfh, int new_size = -1)
2636 PROTOTYPE: $;$
2637 CODE:
2638#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2639 if (new_size >= 0)
2640 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2641 else
2642 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2643#else
2644 errno = ENOSYS;
2645 RETVAL = -1;
2646#endif
2647 OUTPUT:
2648 RETVAL
2649
2650void
2651pipe2 (int flags = 0)
1206 PROTOTYPE: 2652 PROTOTYPE: ;$
2653 PPCODE:
2654{
2655 int fd[2];
2656 int res;
2657
2658 if (flags)
2659#if HAVE_PIPE2
2660 res = pipe2 (fd, flags);
2661#else
2662 res = (errno = ENOSYS, -1);
2663#endif
2664 else
2665 res = pipe (fd);
2666
2667 if (!res)
2668 {
2669 EXTEND (SP, 2);
2670 PUSHs (newmortalFH (fd[0], O_RDONLY));
2671 PUSHs (newmortalFH (fd[1], O_WRONLY));
2672 }
2673}
2674
2675void
2676pidfd_open (int pid, unsigned int flags = 0)
2677 PPCODE:
2678{
2679 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2680 int fd = syscall (SYS_pidfd_open, pid, flags);
2681 XPUSHs (newmortalFH (fd, O_RDWR));
2682}
2683
2684int
2685pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
2686 PPCODE:
2687{
2688 int res;
2689#if HAVE_SIGINFO_T
2690 siginfo_t si = { 0 };
2691
2692 if (SvOK (siginfo))
2693 {
2694 HV *hv;
2695 SV **svp;
2696
2697 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2698 croak ("siginfo argument must be a hashref with 'code', 'pid', 'uid' and 'value_int' or 'value_ptr' members, caught");
2699
2700 hv = (HV *)SvRV (siginfo);
2701
2702 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2703 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2704 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2705 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2706 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2707 }
2708
2709 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2710 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2711#else
2712 res = (errno = ENOSYS, -1);
2713#endif
2714
2715 XPUSHs (sv_2mortal (newSViv (res)));
2716}
2717
2718void
2719pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2720 PPCODE:
2721{
2722 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2723 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2724 XPUSHs (newmortalFH (fd, O_RDWR));
2725}
2726
2727void
2728eventfd (unsigned int initval = 0, int flags = 0)
2729 PPCODE:
2730{
2731 int fd;
2732#if HAVE_EVENTFD
2733 fd = eventfd (initval, flags);
2734#else
2735 fd = (errno = ENOSYS, -1);
2736#endif
2737
2738 XPUSHs (newmortalFH (fd, O_RDWR));
2739}
2740
2741void
2742timerfd_create (int clockid, int flags = 0)
2743 PPCODE:
2744{
2745 int fd;
2746#if HAVE_TIMERFD
2747 fd = timerfd_create (clockid, flags);
2748#else
2749 fd = (errno = ENOSYS, -1);
2750#endif
2751
2752 XPUSHs (newmortalFH (fd, O_RDWR));
2753}
2754
2755void
2756timerfd_settime (SV *fh, int flags, NV interval, NV value)
2757 PPCODE:
2758{
2759 int fd = s_fileno_croak (fh, 0);
2760#if HAVE_TIMERFD
2761 int res;
2762 struct itimerspec its, ots;
2763
2764 ts_set (&its.it_interval, interval);
2765 ts_set (&its.it_value , value);
2766 res = timerfd_settime (fd, flags, &its, &ots);
2767
2768 if (!res)
2769 {
2770 EXTEND (SP, 2);
2771 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2772 PUSHs (newSVnv (ts_get (&ots.it_value)));
2773 }
2774#else
2775 errno = ENOSYS;
2776#endif
2777}
2778
2779void
2780timerfd_gettime (SV *fh)
2781 PPCODE:
2782{
2783 int fd = s_fileno_croak (fh, 0);
2784#if HAVE_TIMERFD
2785 int res;
2786 struct itimerspec ots;
2787 res = timerfd_gettime (fd, &ots);
2788
2789 if (!res)
2790 {
2791 EXTEND (SP, 2);
2792 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2793 PUSHs (newSVnv (ts_get (&ots.it_value)));
2794 }
2795#else
2796 errno = ENOSYS;
2797#endif
2798}
2799
2800void
2801memfd_create (SV8 *pathname, int flags = 0)
2802 PPCODE:
2803{
2804 int fd;
2805#if HAVE_MEMFD_CREATE
2806 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2807#else
2808 fd = (errno = ENOSYS, -1);
2809#endif
2810
2811 XPUSHs (newmortalFH (fd, O_RDWR));
2812}
2813
2814UV
2815get_fdlimit ()
1207 CODE: 2816 CODE:
1208 RETVAL = nreqs; 2817#if HAVE_RLIMITS
2818 struct rlimit rl;
2819 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2820 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2821#endif
2822 XSRETURN_UNDEF;
1209 OUTPUT: 2823 OUTPUT:
1210 RETVAL 2824 RETVAL
2825
2826void
2827min_fdlimit (UV limit = 0x7fffffffU)
2828 CODE:
2829{
2830#if HAVE_RLIMITS
2831 struct rlimit rl;
2832 rlim_t orig_rlim_max;
2833 UV bit;
2834
2835 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2836 goto fail;
2837
2838 if (rl.rlim_cur == RLIM_INFINITY)
2839 XSRETURN_YES;
2840
2841 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2842
2843 if (rl.rlim_cur < limit)
2844 {
2845 rl.rlim_cur = limit;
2846
2847 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2848 rl.rlim_max = rl.rlim_cur;
2849 }
2850
2851 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2852 XSRETURN_YES;
2853
2854 if (errno == EPERM)
2855 {
2856 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2857 /* our limit overflows a system-wide limit */
2858 /* try an adaptive algorithm, but do not lower the hardlimit */
2859 rl.rlim_max = 0;
2860 for (bit = 0x40000000U; bit; bit >>= 1)
2861 {
2862 rl.rlim_max |= bit;
2863 rl.rlim_cur = rl.rlim_max;
2864
2865 /* never decrease the hard limit */
2866 if (rl.rlim_max < orig_rlim_max)
2867 break;
2868
2869 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2870 rl.rlim_max &= ~bit; /* too high, remove bit again */
2871 }
2872
2873 /* now, raise the soft limit to the max permitted */
2874 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2875 {
2876 rl.rlim_cur = rl.rlim_max;
2877 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2878 errno = EPERM;
2879 }
2880 }
2881#endif
2882 fail:
2883 XSRETURN_UNDEF;
2884}
2885
2886void _on_next_submit (SV *cb)
2887 CODE:
2888 SvREFCNT_dec (on_next_submit);
2889 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2890
2891PROTOTYPES: DISABLE
2892
2893MODULE = IO::AIO PACKAGE = IO::AIO::WD
2894
2895BOOT:
2896{
2897 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2898 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2899}
2900
2901void
2902DESTROY (SV *self)
2903 CODE:
2904{
2905 aio_wd wd = SvAIO_WD (self);
2906#if HAVE_AT
2907 {
2908 SV *callback = &PL_sv_undef;
2909 dREQ; /* clobbers next_pri :/ */
2910 next_pri = req->pri; /* restore next_pri */
2911 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2912 req->type = EIO_WD_CLOSE;
2913 req->wd = wd;
2914 REQ_SEND;
2915 }
2916#else
2917 eio_wd_close_sync (wd);
2918#endif
2919}
1211 2920
1212MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2921MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1213 2922
1214void 2923void
1215cancel (aio_req_ornot req) 2924cancel (aio_req_ornot req)
1216 PROTOTYPE:
1217 CODE: 2925 CODE:
1218 req_cancel (req); 2926 eio_cancel (req);
2927
2928void
2929cb (aio_req_ornot req, SV *callback = NO_INIT)
2930 PPCODE:
2931{
2932 if (GIMME_V != G_VOID)
2933 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2934
2935 if (items > 1)
2936 {
2937 SV *cb_cv = get_cb (callback);
2938
2939 SvREFCNT_dec (req->callback);
2940 req->callback = SvREFCNT_inc (cb_cv);
2941 }
2942}
1219 2943
1220MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2944MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1221 2945
1222void 2946void
1223add (aio_req grp, ...) 2947add (aio_req grp, ...)
1224 PROTOTYPE: $;@
1225 PPCODE: 2948 PPCODE:
1226{ 2949{
1227 int i; 2950 int i;
2951
2952 if (grp->int1 == 2)
2953 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1228 2954
1229 for (i = 1; i < items; ++i ) 2955 for (i = 1; i < items; ++i )
1230 { 2956 {
2957 aio_req req;
2958
1231 if (GIMME_V != G_VOID) 2959 if (GIMME_V != G_VOID)
1232 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2960 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1233 2961
1234 aio_req req = SvAIO_REQ (ST (i)); 2962 req = SvAIO_REQ (ST (i));
1235 printf ("req = %p\n", req);//D
1236 2963
1237 if (req) 2964 if (req)
1238 { 2965 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 } 2966 }
1247} 2967}
1248 2968
2969void
2970cancel_subs (aio_req_ornot req)
2971 CODE:
2972 req_cancel_subs (req);
2973
2974void
2975result (aio_req grp, ...)
2976 CODE:
2977{
2978 int i;
2979 AV *av;
2980
2981 grp->errorno = errno;
2982
2983 av = newAV ();
2984 av_extend (av, items - 1);
2985
2986 for (i = 1; i < items; ++i )
2987 av_push (av, newSVsv (ST (i)));
2988
2989 SvREFCNT_dec (grp->sv1);
2990 grp->sv1 = (SV *)av;
2991}
2992
2993void
2994errno (aio_req grp, int errorno = errno)
2995 CODE:
2996 grp->errorno = errorno;
2997
2998void
2999limit (aio_req grp, int limit)
3000 CODE:
3001 eio_grp_limit (grp, limit);
3002
3003void
3004feed (aio_req grp, SV *callback = &PL_sv_undef)
3005 CODE:
3006{
3007 SvREFCNT_dec (grp->sv2);
3008 grp->sv2 = newSVsv (callback);
3009 grp->feed = aio_grp_feed;
3010
3011 if (grp->int2 <= 0)
3012 grp->int2 = 2;
3013
3014 eio_grp_limit (grp, grp->int2);
3015}
3016

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