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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.63 by root, Mon Oct 23 23:48:31 2006 UTC vs.
Revision 1.270 by root, Thu Nov 29 21:51:22 2018 UTC

1#if __linux 1#include "libeio/xthread.h"
2# define _GNU_SOURCE
3#endif
4
5#define _REENTRANT 1
6 2
7#include <errno.h> 3#include <errno.h>
8 4
9#include "EXTERN.h" 5#include "EXTERN.h"
10#include "perl.h" 6#include "perl.h"
11#include "XSUB.h" 7#include "XSUB.h"
12 8
13#include "autoconf/config.h" 9#if !defined mg_findext
14 10# define mg_findext(sv,type,vtbl) mg_find (sv, type)
15#include <pthread.h> 11#endif
16 12
17#include <stddef.h> 13#include <stddef.h>
14#include <stdlib.h>
18#include <errno.h> 15#include <errno.h>
19#include <sys/time.h>
20#include <sys/select.h>
21#include <sys/types.h> 16#include <sys/types.h>
17#include <sys/socket.h>
22#include <sys/stat.h> 18#include <sys/stat.h>
23#include <limits.h> 19#include <limits.h>
24#include <unistd.h>
25#include <fcntl.h> 20#include <fcntl.h>
26#include <signal.h>
27#include <sched.h> 21#include <sched.h>
28 22
29#if HAVE_SENDFILE 23/* the incompetent fool that created musl keeps __linux__, refuses
30# if __linux 24 * to implement any linux standard apis, and also has no way to test
25 * for his broken iplementation. don't complain to me if this fails
26 * for you.
27 */
28#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
29# include <linux/fs.h>
30# ifdef FS_IOC_FIEMAP
31# include <linux/types.h>
32# include <linux/fiemap.h>
33# define HAVE_FIEMAP 1
34# endif
35#endif
36
37/* perl namespace pollution */
38#undef VERSION
39
40/* perl stupidly overrides readdir and maybe others */
41/* with thread-unsafe versions, imagine that :( */
42#undef readdir
43#undef opendir
44#undef closedir
45
46#ifdef _WIN32
47
48 // perl overrides all those nice libc functions
49
50 #undef malloc
51 #undef free
52 #undef open
53 #undef read
54 #undef write
55 #undef send
56 #undef recv
57 #undef stat
58 #undef lstat
59 #undef fstat
60 #undef truncate
61 #undef ftruncate
62 #undef open
63 #undef link
64 #undef close
65 #undef unlink
66 #undef mkdir
67 #undef rmdir
68 #undef rename
69 #undef lseek
70 #undef opendir
71 #undef readdir
72 #undef closedir
73 #undef chmod
74 #undef fchmod
75 #undef dup
76 #undef dup2
77 #undef abort
78 #undef pipe
79 #undef utime
80
81 #define EIO_STRUCT_STAT struct _stati64
82 #define EIO_STRUCT_STATI64
83
84#else
85
86 #include <sys/time.h>
31# include <sys/sendfile.h> 87 #include <sys/select.h>
32# elif __freebsd 88 #include <unistd.h>
89 #include <utime.h>
90 #include <signal.h>
91
92 #define EIO_STRUCT_STAT Stat_t
93
94#endif
95
96/*****************************************************************************/
97
98#if __GNUC__ >= 3
99# define expect(expr,value) __builtin_expect ((expr),(value))
100#else
101# define expect(expr,value) (expr)
102#endif
103
104#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1)
106
107/*****************************************************************************/
108
109#include "config.h"
110
111#if HAVE_SYS_MKDEV_H
33# include <sys/socket.h> 112# include <sys/mkdev.h>
113#elif HAVE_SYS_SYSMACROS_H
114# include <sys/sysmacros.h>
115#endif
116
117#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
34# include <sys/uio.h> 118# include <sys/mman.h>
35# elif __hpux 119#endif
36# include <sys/socket.h> 120
37# elif __solaris /* not yet */ 121#if HAVE_ST_XTIMENSEC
122# define ATIMENSEC PL_statcache.st_atimensec
123# define MTIMENSEC PL_statcache.st_mtimensec
124# define CTIMENSEC PL_statcache.st_ctimensec
125#elif HAVE_ST_XTIMESPEC
126# define ATIMENSEC PL_statcache.st_atim.tv_nsec
127# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
128# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
129#else
130# define ATIMENSEC 0
131# define MTIMENSEC 0
132# define CTIMENSEC 0
133#endif
134
135#if HAVE_ST_BIRTHTIMENSEC
136# define BTIMESEC PL_statcache.st_birthtime
137# define BTIMENSEC PL_statcache.st_birthtimensec
138#elif HAVE_ST_BIRTHTIMESPEC
139# define BTIMESEC PL_statcache.st_birthtim.tv_sec
140# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
141#else
142# define BTIMESEC 0
143# define BTIMENSEC 0
144#endif
145
146#if HAVE_ST_GEN
147# define ST_GEN PL_statcache.st_gen
148#else
149# define ST_GEN 0
150#endif
151
152#include "schmorp.h"
153
154#if HAVE_EVENTFD
38# include <sys/sendfile.h> 155# include <sys/eventfd.h>
156#endif
157
158#if HAVE_TIMERFD
159# include <sys/timerfd.h>
160#endif
161
162#if HAVE_RLIMITS
163 #include <sys/time.h>
164 #include <sys/resource.h>
165#endif
166
167typedef SV SV8; /* byte-sv, used for argument-checking */
168typedef int aio_rfd; /* read file desriptor */
169typedef int aio_wfd; /* write file descriptor */
170
171static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
172
173#define EIO_REQ_MEMBERS \
174 SV *callback; \
175 SV *sv1, *sv2; \
176 SV *sv3, *sv4; \
177 STRLEN stroffset; \
178 SV *self;
179
180#define EIO_NO_WRAPPERS 1
181
182#include "libeio/eio.h"
183
184static int req_invoke (eio_req *req);
185#define EIO_FINISH(req) req_invoke (req)
186static void req_destroy (eio_req *grp);
187#define EIO_DESTROY(req) req_destroy (req)
188
189#include "libeio/eio.c"
190
191#if !HAVE_POSIX_FADVISE
192# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
193#endif
194
195#if !HAVE_POSIX_MADVISE
196# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
197#endif
198
199#ifndef MAP_ANONYMOUS
200# ifdef MAP_ANON
201# define MAP_ANONYMOUS MAP_ANON
39# else 202# else
40# error sendfile support requested but not available 203# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
41# endif 204# endif
42#endif 205#endif
43 206
44/* used for struct dirent, AIX doesn't provide it */ 207#ifndef makedev
45#ifndef NAME_MAX 208# define makedev(maj,min) (((maj) << 8) | (min))
46# define NAME_MAX 4096
47#endif 209#endif
210#ifndef major
211# define major(dev) ((dev) >> 8)
212#endif
213#ifndef minor
214# define minor(dev) ((dev) & 0xff)
215#endif
48 216
49#if __ia64 217/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
50# define STACKSIZE 65536 218#ifdef __sun
219# undef PAGESIZE
220#endif
221
222#if PAGESIZE <= 0
223# define PAGESIZE sysconf (_SC_PAGESIZE)
224#endif
225
226/*****************************************************************************/
227
228#if !_POSIX_MAPPED_FILES
229# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
230# define munmap(addr,length) EIO_ENOSYS ()
231#endif
232
233#if !_POSIX_MEMORY_PROTECTION
234# define mprotect(addr,len,prot) EIO_ENOSYS ()
235#endif
236
237#if !MREMAP_MAYMOVE
238# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
239#endif
240
241#define FOREIGN_MAGIC PERL_MAGIC_ext
242
243static int ecb_cold
244mmap_free (pTHX_ SV *sv, MAGIC *mg)
245{
246 int old_errno = errno;
247 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
248 errno = old_errno;
249
250 mg->mg_obj = 0; /* just in case */
251
252 SvREADONLY_off (sv);
253
254 if (SvPVX (sv) != mg->mg_ptr)
255 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
256
257 SvCUR_set (sv, 0);
258 SvPVX (sv) = 0;
259 SvOK_off (sv);
260
261 return 0;
262}
263
264static MGVTBL mmap_vtbl = {
265 0, 0, 0, 0, mmap_free
266};
267
268static int ecb_cold
269sysfree_free (pTHX_ SV *sv, MAGIC *mg)
270{
271 free (mg->mg_ptr);
272 mg->mg_obj = 0; /* just in case */
273
274 SvREADONLY_off (sv);
275
276 if (SvPVX (sv) != mg->mg_ptr)
277 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
278
279 SvCUR_set (sv, 0);
280 SvPVX (sv) = 0;
281 SvOK_off (sv);
282
283 return 0;
284}
285
286static MGVTBL sysfree_vtbl = {
287 0, 0, 0, 0, sysfree_free
288};
289
290/*****************************************************************************/
291
292/* helper: set scalar to foreign ptr with custom free */
293static void
294sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
295{
296 sv_force_normal (sv);
297
298 /* we store the length in mg_obj, as namlen is I32 :/ */
299 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
300 ->mg_obj = (SV *)length;
301
302 SvUPGRADE (sv, SVt_PV); /* nop... */
303
304 if (SvLEN (sv))
305 Safefree (SvPVX (sv));
306
307 SvPVX (sv) = (char *)addr;
308 SvCUR_set (sv, length);
309 SvLEN_set (sv, 0);
310 SvPOK_only (sv);
311}
312
313static void
314sv_clear_foreign (SV *sv)
315{
316 /* todo: iterate over magic and only free ours, but of course */
317 /* the perl5porters will call that (correct) behaviour buggy */
318 sv_unmagic (sv, FOREIGN_MAGIC);
319}
320
321/*****************************************************************************/
322
323/* defines all sorts of constants to 0 unless they are already defined */
324/* also provides const_iv_ and const_niv_ macros for them */
325#include "def0.h"
326
327/*****************************************************************************/
328
329static void
330fiemap (eio_req *req)
331{
332 req->result = -1;
333
334#if HAVE_FIEMAP
335 /* assume some c99 */
336 struct fiemap *fiemap = 0;
337 size_t end_offset;
338 int count = req->int3;
339
340 req->flags |= EIO_FLAG_PTR1_FREE;
341
342 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
343 /* increase in 3.5kb steps */
344 if (count < 0)
345 count = 8;
346
347 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
348 errno = ENOMEM;
349 if (!fiemap)
350 return;
351
352 req->ptr1 = fiemap;
353
354 fiemap->fm_start = req->offs;
355 fiemap->fm_length = req->size;
356 fiemap->fm_flags = req->int2;
357 fiemap->fm_extent_count = count;
358
359 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
360 return;
361
362 if (req->int3 >= 0 /* not autosizing */
363 || !fiemap->fm_mapped_extents /* no more extents */
364 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
365 goto done;
366
367 /* else we have to loop -
368 * it would be tempting (actually I tried that first) to just query the
369 * number of extents needed, but linux often feels like not returning all
370 * extents, without telling us it left any out. this complicates
371 * this quite a bit.
372 */
373
374 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
375
376 for (;;)
377 {
378 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
379 char scratch[3072];
380 struct fiemap *incmap = (struct fiemap *)scratch;
381
382 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
383 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
384 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
385 incmap->fm_flags = fiemap->fm_flags;
386 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
387
388 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
389 return;
390
391 if (!incmap->fm_mapped_extents)
392 goto done;
393
394 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
395 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
396 errno = ENOMEM;
397 if (!fiemap)
398 return;
399
400 req->ptr1 = fiemap;
401
402 for (count = 0; count < incmap->fm_mapped_extents; ++count)
403 {
404 struct fiemap_extent *e = incmap->fm_extents + count;
405
406 if (e->fe_logical + e->fe_length >= end_offset)
407 goto done;
408
409 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
410
411 if (e->fe_flags & FIEMAP_EXTENT_LAST)
412 goto done;
413
414 }
415 }
416
417done:
418 req->result = 0;
419
51#else 420#else
52# define STACKSIZE 8192 421 errno = ENOSYS;
53#endif 422#endif
423}
424
425/*****************************************************************************/
426
427static int close_fd; /* dummy fd to close fds via dup2 */
54 428
55enum { 429enum {
56 REQ_QUIT, 430 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
57 REQ_OPEN, REQ_CLOSE,
58 REQ_READ, REQ_WRITE, REQ_READAHEAD,
59 REQ_SENDFILE,
60 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
61 REQ_FSYNC, REQ_FDATASYNC,
62 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
63 REQ_READDIR,
64 REQ_LINK, REQ_SYMLINK,
65 REQ_GROUP, REQ_NOP,
66 REQ_SLEEP,
67}; 431};
68 432
69#define AIO_REQ_KLASS "IO::AIO::REQ"
70#define AIO_GRP_KLASS "IO::AIO::GRP"
71
72typedef struct aio_cb
73{
74 struct aio_cb *volatile next;
75
76 SV *data, *callback;
77 SV *fh, *fh2;
78 void *dataptr, *data2ptr;
79 Stat_t *statdata;
80 off_t offset;
81 size_t length;
82 ssize_t result;
83
84 STRLEN dataoffset;
85 int type;
86 int fd, fd2;
87 int errorno;
88 mode_t mode; /* open */
89
90 unsigned char flags;
91 unsigned char pri;
92
93 SV *self; /* the perl counterpart of this request, if any */
94 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
95} aio_cb;
96
97enum {
98 FLAG_CANCELLED = 0x01,
99};
100
101typedef aio_cb *aio_req; 433typedef eio_req *aio_req;
102typedef aio_cb *aio_req_ornot; 434typedef eio_req *aio_req_ornot;
435typedef eio_wd aio_wd;
103 436
104enum { 437static SV *on_next_submit;
105 PRI_MIN = -4, 438static int next_pri = EIO_PRI_DEFAULT;
106 PRI_MAX = 4,
107
108 DEFAULT_PRI = 0,
109 PRI_BIAS = -PRI_MIN,
110};
111
112static int next_pri = DEFAULT_PRI + PRI_BIAS;
113
114static int started, wanted;
115static volatile int nreqs;
116static int max_outstanding = 1<<30; 439static int max_outstanding;
117static int respipe [2];
118 440
119#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) 441static s_epipe respipe;
120# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
121#else
122# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
123#endif
124 442
125static pthread_mutex_t reslock = AIO_MUTEX_INIT; 443static void req_destroy (aio_req req);
126static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
127static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
128
129static volatile aio_req reqs, reqe; /* queue start, queue end */
130static volatile aio_req ress, rese; /* queue start, queue end */
131
132static void req_invoke (aio_req req); 444static void req_cancel (aio_req req);
133static void req_free (aio_req req); 445
446static void
447want_poll (void)
448{
449 /* write a dummy byte to the pipe so fh becomes ready */
450 s_epipe_signal (&respipe);
451}
452
453static void
454done_poll (void)
455{
456 /* read any signals sent by the worker threads */
457 s_epipe_drain (&respipe);
458}
134 459
135/* must be called at most once */ 460/* must be called at most once */
136static SV *req_sv (aio_req req, const char *klass) 461static SV *
462req_sv (aio_req req, HV *stash)
137{ 463{
138 if (!req->self) 464 if (!req->self)
139 { 465 {
140 req->self = (SV *)newHV (); 466 req->self = (SV *)newHV ();
141 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 467 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
142 } 468 }
143 469
144 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 470 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
145} 471}
146 472
147static aio_req SvAIO_REQ (SV *sv) 473static SV *
474newSVaio_wd (aio_wd wd)
475{
476 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
477}
478
479static aio_req
480SvAIO_REQ (SV *sv)
148{ 481{
149 MAGIC *mg; 482 MAGIC *mg;
150 483
151 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 484 if (!SvROK (sv)
485 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
486 || (SvSTASH (SvRV (sv)) != aio_grp_stash
487 && SvSTASH (SvRV (sv)) != aio_req_stash
488 && !sv_derived_from (sv, "IO::AIO::REQ")))
152 croak ("object of class " AIO_REQ_KLASS " expected"); 489 croak ("object of class IO::AIO::REQ expected");
153 490
154 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 491 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
155 492
156 return mg ? (aio_req)mg->mg_ptr : 0; 493 return mg ? (aio_req)mg->mg_ptr : 0;
157} 494}
158 495
496static aio_wd
497SvAIO_WD (SV *sv)
498{
499 if (!SvROK (sv)
500 || SvTYPE (SvRV (sv)) != SVt_PVMG
501 || SvSTASH (SvRV (sv)) != aio_wd_stash)
502 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
503
504 return (aio_wd)(long)SvIVX (SvRV (sv));
505}
506
507static SV *
508newmortalFH (int fd, int flags)
509{
510 if (fd < 0)
511 return &PL_sv_undef;
512
513 GV *gv = (GV *)sv_newmortal ();
514 char sym[64];
515 int symlen;
516
517 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
518 gv_init (gv, aio_stash, sym, symlen, 0);
519
520 symlen = snprintf (
521 sym,
522 sizeof (sym),
523 "%s&=%d",
524 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
525 fd
526 );
527
528 return do_open (gv, sym, symlen, 0, 0, 0, 0)
529 ? (SV *)gv : &PL_sv_undef;
530}
531
532static void
159static void aio_grp_feed (aio_req grp) 533aio_grp_feed (aio_req grp)
160{ 534{
161 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 535 if (grp->sv2 && SvOK (grp->sv2))
162 { 536 {
163 int old_len = grp->length; 537 dSP;
164 538
165 if (grp->fh2 && SvOK (grp->fh2)) 539 ENTER;
540 SAVETMPS;
541 PUSHMARK (SP);
542 XPUSHs (req_sv (grp, aio_grp_stash));
543 PUTBACK;
544 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
545 SPAGAIN;
546 FREETMPS;
547 LEAVE;
548 }
549}
550
551static void
552req_submit (eio_req *req)
553{
554 eio_submit (req);
555
556 if (expect_false (on_next_submit))
557 {
558 dSP;
559 SV *cb = sv_2mortal (on_next_submit);
560
561 on_next_submit = 0;
562
563 PUSHMARK (SP);
564 PUTBACK;
565 call_sv (cb, G_DISCARD | G_EVAL);
566 }
567}
568
569static int
570req_invoke (eio_req *req)
571{
572 if (req->flags & FLAG_SV2_RO_OFF)
573 SvREADONLY_off (req->sv2);
574
575 if (!EIO_CANCELLED (req) && req->callback)
576 {
577 dSP;
578 static SV *sv_result_cache; /* caches the result integer SV */
579 SV *sv_result;
580
581 ENTER;
582 SAVETMPS;
583 PUSHMARK (SP);
584 EXTEND (SP, 1);
585
586 /* do not recreate the result IV from scratch each time */
587 if (expect_true (sv_result_cache))
166 { 588 {
167 dSP; 589 sv_result = sv_result_cache; sv_result_cache = 0;
168 590 SvIV_set (sv_result, req->result);
169 ENTER; 591 SvIOK_only (sv_result);
170 SAVETMPS;
171 PUSHMARK (SP);
172 XPUSHs (req_sv (grp, AIO_GRP_KLASS));
173 PUTBACK;
174 call_sv (grp->fh2, G_VOID | G_EVAL);
175 SPAGAIN;
176 FREETMPS;
177 LEAVE;
178 } 592 }
179 593 else
180 /* stop if no progress has been made */
181 if (old_len == grp->length)
182 { 594 {
183 SvREFCNT_dec (grp->fh2); 595 sv_result = newSViv (req->result);
184 grp->fh2 = 0; 596 SvREADONLY_on (sv_result);
185 break;
186 } 597 }
598
599 switch (req->type)
600 {
601 case EIO_WD_OPEN:
602 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
603 break;
604
605 case EIO_READDIR:
606 {
607 SV *rv = &PL_sv_undef;
608
609 if (req->result >= 0)
610 {
611 int i;
612 char *names = (char *)req->ptr2;
613 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
614 AV *av = newAV ();
615
616 av_extend (av, req->result - 1);
617
618 for (i = 0; i < req->result; ++i)
619 {
620 if (req->int1 & EIO_READDIR_DENTS)
621 {
622 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
623
624 if (req->int1 & EIO_READDIR_CUSTOM2)
625 {
626 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
627 AV *avent = newAV ();
628
629 av_extend (avent, 2);
630
631 if (!sv_type [ent->type])
632 {
633 sv_type [ent->type] = newSViv (ent->type);
634 SvREADONLY_on (sv_type [ent->type]);
635 }
636
637 av_store (avent, 0, namesv);
638 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
639 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
640
641 av_store (av, i, newRV_noinc ((SV *)avent));
642 }
643 else
644 av_store (av, i, namesv);
645
646 ++ent;
647 }
648 else
649 {
650 SV *name = newSVpv (names, 0);
651 av_store (av, i, name);
652 names += SvCUR (name) + 1;
653 }
654 }
655
656 rv = sv_2mortal (newRV_noinc ((SV *)av));
657 }
658
659 PUSHs (rv);
660
661 if (req->int1 & EIO_READDIR_CUSTOM1)
662 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
663 }
664 break;
665
666 case EIO_OPEN:
667 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
668 break;
669
670 case EIO_STATVFS:
671 case EIO_FSTATVFS:
672 {
673 SV *rv = &PL_sv_undef;
674
675#ifndef _WIN32
676 if (req->result >= 0)
677 {
678 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
679 HV *hv = newHV ();
680 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
681 * chooses to make it a struct.
682 */
683 unsigned long fsid = 0;
684 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
685
686 rv = sv_2mortal (newRV_noinc ((SV *)hv));
687
688 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
689 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
690 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
691 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
692 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
693 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
694 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
695 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
696 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
697 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
698 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
699 }
700#endif
701
702 PUSHs (rv);
703 }
704
705 break;
706
707 case EIO_GROUP:
708 req->int1 = 2; /* mark group as finished */
709
710 if (req->sv1)
711 {
712 int i;
713 AV *av = (AV *)req->sv1;
714
715 EXTEND (SP, AvFILL (av) + 1);
716 for (i = 0; i <= AvFILL (av); ++i)
717 PUSHs (*av_fetch (av, i, 0));
718 }
719 break;
720
721 case EIO_NOP:
722 case EIO_BUSY:
723 break;
724
725 case EIO_READLINK:
726 case EIO_REALPATH:
727 if (req->result > 0)
728 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
729 break;
730
731 case EIO_STAT:
732 case EIO_LSTAT:
733 case EIO_FSTAT:
734 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
735
736 if (!(PL_laststatval = req->result))
737 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
738 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
739
740 PUSHs (sv_result);
741 break;
742
743 case EIO_SEEK:
744 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
745 break;
746
747 case EIO_READ:
748 {
749 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
750 *SvEND (req->sv2) = 0;
751 SvPOK_only (req->sv2);
752 SvSETMAGIC (req->sv2);
753 PUSHs (sv_result);
754 }
755 break;
756
757 case EIO_SLURP:
758 {
759 if (req->result >= 0)
760 {
761 /* if length was originally not known, we steal the malloc'ed memory */
762 if (req->flags & EIO_FLAG_PTR2_FREE)
763 {
764 req->flags &= ~EIO_FLAG_PTR2_FREE;
765 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
766 }
767 else
768 {
769 SvCUR_set (req->sv2, req->result);
770 *SvEND (req->sv2) = 0;
771 SvPOK_only (req->sv2);
772 }
773
774 SvSETMAGIC (req->sv2);
775 }
776
777 PUSHs (sv_result);
778 }
779 break;
780
781 case EIO_CUSTOM:
782 if (req->feed == fiemap)
783 {
784#if HAVE_FIEMAP
785 if (!req->result)
786 {
787 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
788
789 if (fiemap->fm_extent_count)
790 {
791 AV *av = newAV ();
792 int i;
793
794 while (fiemap->fm_mapped_extents)
795 {
796 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
797 AV *ext_av = newAV ();
798
799 av_store (ext_av, 3, newSVuv (extent->fe_flags));
800 av_store (ext_av, 2, newSVval64 (extent->fe_length));
801 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
802 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
803
804 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
805 }
806
807 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
808 }
809 else
810 {
811 SvIV_set (sv_result, fiemap->fm_mapped_extents);
812 PUSHs (sv_result);
813 }
814 }
815#endif
816 }
817 else
818 PUSHs (sv_result);
819 break;
820
821 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
822 if (req->result > 0)
823 SvIV_set (sv_result, 0);
824 /* FALLTHROUGH */
825
826 default:
827 PUSHs (sv_result);
828 break;
829 }
830
831 errno = req->errorno;
832
833 PUTBACK;
834 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
835 SPAGAIN;
836
837 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
838 SvREFCNT_dec (sv_result);
839 else
840 sv_result_cache = sv_result;
841
842 FREETMPS;
843 LEAVE;
844
845 PUTBACK;
187 } 846 }
188}
189 847
190static void aio_grp_dec (aio_req grp) 848 return !!SvTRUE (ERRSV);
191{
192 --grp->length;
193
194 /* call feeder, if applicable */
195 aio_grp_feed (grp);
196
197 /* finish, if done */
198 if (!grp->length && grp->fd)
199 {
200 req_invoke (grp);
201 req_free (grp);
202 }
203} 849}
204 850
205static void poll_wait () 851static void
852req_destroy (aio_req req)
206{ 853{
207 fd_set rfd;
208
209 while (nreqs)
210 {
211 aio_req req;
212 pthread_mutex_lock (&reslock);
213 req = ress;
214 pthread_mutex_unlock (&reslock);
215
216 if (req)
217 return;
218
219 FD_ZERO(&rfd);
220 FD_SET(respipe [0], &rfd);
221
222 select (respipe [0] + 1, &rfd, 0, 0, 0);
223 }
224}
225
226static void req_invoke (aio_req req)
227{
228 dSP;
229 int errorno = errno;
230
231 if (req->flags & FLAG_CANCELLED || !SvOK (req->callback))
232 return;
233
234 errno = req->errorno;
235
236 ENTER;
237 SAVETMPS;
238 PUSHMARK (SP);
239 EXTEND (SP, 1);
240
241 switch (req->type)
242 {
243 case REQ_READDIR:
244 {
245 SV *rv = &PL_sv_undef;
246
247 if (req->result >= 0)
248 {
249 char *buf = req->data2ptr;
250 AV *av = newAV ();
251
252 while (req->result)
253 {
254 SV *sv = newSVpv (buf, 0);
255
256 av_push (av, sv);
257 buf += SvCUR (sv) + 1;
258 req->result--;
259 }
260
261 rv = sv_2mortal (newRV_noinc ((SV *)av));
262 }
263
264 PUSHs (rv);
265 }
266 break;
267
268 case REQ_OPEN:
269 {
270 /* convert fd to fh */
271 SV *fh;
272
273 PUSHs (sv_2mortal (newSViv (req->result)));
274 PUTBACK;
275 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
276 SPAGAIN;
277
278 fh = SvREFCNT_inc (POPs);
279
280 PUSHMARK (SP);
281 XPUSHs (sv_2mortal (fh));
282 }
283 break;
284
285 case REQ_GROUP:
286 req->fd = 2; /* mark group as finished */
287
288 if (req->data)
289 {
290 int i;
291 AV *av = (AV *)req->data;
292
293 EXTEND (SP, AvFILL (av) + 1);
294 for (i = 0; i <= AvFILL (av); ++i)
295 PUSHs (*av_fetch (av, i, 0));
296 }
297 break;
298
299 case REQ_NOP:
300 case REQ_SLEEP:
301 break;
302
303 default:
304 PUSHs (sv_2mortal (newSViv (req->result)));
305 break;
306 }
307
308
309 PUTBACK;
310 call_sv (req->callback, G_VOID | G_EVAL);
311 SPAGAIN;
312
313 FREETMPS;
314 LEAVE;
315
316 errno = errorno;
317
318 if (SvTRUE (ERRSV))
319 {
320 req_free (req);
321 croak (0);
322 }
323}
324
325static void req_free (aio_req req)
326{
327 if (req->grp)
328 {
329 aio_req grp = req->grp;
330
331 /* unlink request */
332 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
333 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
334
335 if (grp->grp_first == req)
336 grp->grp_first = req->grp_next;
337
338 aio_grp_dec (grp);
339 }
340
341 if (req->self) 854 if (req->self)
342 { 855 {
343 sv_unmagic (req->self, PERL_MAGIC_ext); 856 sv_unmagic (req->self, PERL_MAGIC_ext);
344 SvREFCNT_dec (req->self); 857 SvREFCNT_dec (req->self);
345 } 858 }
346 859
347 SvREFCNT_dec (req->data);
348 SvREFCNT_dec (req->fh); 860 SvREFCNT_dec (req->sv1);
349 SvREFCNT_dec (req->fh2); 861 SvREFCNT_dec (req->sv2);
862 SvREFCNT_dec (req->sv3);
863 SvREFCNT_dec (req->sv4);
350 SvREFCNT_dec (req->callback); 864 SvREFCNT_dec (req->callback);
351 Safefree (req->statdata);
352 865
353 if (req->type == REQ_READDIR && req->result >= 0)
354 free (req->data2ptr);
355
356 Safefree (req); 866 free (req);
357} 867}
358 868
359static void req_cancel (aio_req req) 869static void
870req_cancel_subs (aio_req grp)
360{ 871{
361 req->flags |= FLAG_CANCELLED;
362
363 if (req->type == REQ_GROUP) 872 if (grp->type != EIO_GROUP)
873 return;
874
875 SvREFCNT_dec (grp->sv2);
876 grp->sv2 = 0;
877
878 eio_grp_cancel (grp);
879}
880
881static void ecb_cold
882create_respipe (void)
883{
884 if (s_epipe_renew (&respipe))
885 croak ("IO::AIO: unable to initialize result pipe");
886}
887
888static void
889poll_wait (void)
890{
891 while (eio_nreqs ())
364 { 892 {
365 aio_req sub; 893 int size;
366 894
367 for (sub = req->grp_first; sub; sub = sub->grp_next) 895 X_LOCK (EIO_POOL->reslock);
368 req_cancel (sub); 896 size = EIO_POOL->res_queue.size;
897 X_UNLOCK (EIO_POOL->reslock);
898
899 if (size)
900 return;
901
902 etp_maybe_start_thread (EIO_POOL);
903
904 s_epipe_wait (&respipe);
369 } 905 }
370} 906}
371 907
372static int poll_cb () 908static int
909poll_cb (void)
373{ 910{
374 dSP;
375 int count = 0;
376 int do_croak = 0;
377 aio_req req;
378
379 for (;;) 911 for (;;)
380 { 912 {
381 pthread_mutex_lock (&reslock); 913 int res = eio_poll ();
382 req = ress;
383 914
384 if (req) 915 if (res > 0)
916 croak (0);
917
918 if (!max_outstanding || max_outstanding > eio_nreqs ())
919 return res;
920
921 poll_wait ();
922 }
923}
924
925static void ecb_cold
926reinit (void)
927{
928 create_respipe ();
929
930 if (eio_init (want_poll, done_poll) < 0)
931 croak ("IO::AIO: unable to initialise eio library");
932}
933
934/*****************************************************************************/
935
936static SV *
937get_cb (SV *cb_sv)
938{
939 SvGETMAGIC (cb_sv);
940 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
941}
942
943static aio_req ecb_noinline
944dreq (SV *callback)
945{
946 SV *cb_cv;
947 aio_req req;
948 int req_pri = next_pri;
949 next_pri = EIO_PRI_DEFAULT;
950
951 cb_cv = get_cb (callback);
952
953 req = calloc (sizeof (*req), 1);
954 if (!req)
955 croak ("out of memory during eio_req allocation");
956
957 req->callback = SvREFCNT_inc (cb_cv);
958 req->pri = req_pri;
959
960 return req;
961}
962
963#define dREQ \
964 aio_req req = dreq (callback); \
965
966#define REQ_SEND \
967 PUTBACK; \
968 req_submit (req); \
969 SPAGAIN; \
970 \
971 if (GIMME_V != G_VOID) \
972 XPUSHs (req_sv (req, aio_req_stash));
973
974ecb_inline void
975req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
976{
977 if (expect_false (SvROK (path)))
978 {
979 SV *rv = SvRV (path);
980 SV *wdob;
981
982 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
385 { 983 {
386 ress = req->next; 984 path = AvARRAY (rv)[1];
985 wdob = AvARRAY (rv)[0];
387 986
388 if (!ress) 987 if (SvOK (wdob))
389 { 988 {
390 /* read any signals sent by the worker threads */ 989 *wd = SvAIO_WD (wdob);
391 char buf [32]; 990 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
392 while (read (respipe [0], buf, 32) == 32)
393 ;
394
395 rese = 0;
396 } 991 }
992 else
993 *wd = EIO_INVALID_WD;
397 } 994 }
398 995 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
399 pthread_mutex_unlock (&reslock);
400
401 if (!req)
402 break;
403
404 --nreqs;
405
406 if (req->type == REQ_QUIT)
407 started--;
408 else if (req->type == REQ_GROUP && req->length)
409 { 996 {
410 req->fd = 1; /* mark request as delayed */ 997 *wd = (aio_wd)(long)SvIVX (rv);
411 continue; 998 *wdsv = SvREFCNT_inc_NN (rv);
999 *ptr = ".";
1000 return; /* path set to "." */
412 } 1001 }
413 else 1002 else
414 { 1003 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
415 if (req->type == REQ_READ)
416 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
417
418 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
419 SvREADONLY_off (req->data);
420
421 if (req->statdata)
422 {
423 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
424 PL_laststatval = req->result;
425 PL_statcache = *(req->statdata);
426 }
427
428 req_invoke (req);
429
430 count++;
431 }
432
433 req_free (req);
434 } 1004 }
435 1005
436 return count; 1006 *pathsv = newSVsv (path);
1007 *ptr = SvPVbyte_nolen (*pathsv);
437} 1008}
438 1009
439static void *aio_proc(void *arg); 1010static void ecb_noinline
440 1011req_set_path1 (aio_req req, SV *path)
441static void start_thread (void)
442{ 1012{
443 sigset_t fullsigset, oldsigset; 1013 req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
444 pthread_t tid;
445 pthread_attr_t attr;
446
447 pthread_attr_init (&attr);
448 pthread_attr_setstacksize (&attr, STACKSIZE);
449 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
450
451 sigfillset (&fullsigset);
452 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
453
454 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
455 started++;
456
457 sigprocmask (SIG_SETMASK, &oldsigset, 0);
458} 1014}
459 1015
460static void req_send (aio_req req) 1016static void ecb_noinline
1017req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
461{ 1018{
462 while (started < wanted && nreqs >= started) 1019 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
463 start_thread ();
464 1020
465 ++nreqs; 1021 switch (SvTYPE (rv))
466
467 pthread_mutex_lock (&reqlock);
468
469 req->next = 0;
470
471 if (reqe)
472 { 1022 {
473 reqe->next = req; 1023 case SVt_PVIO:
474 reqe = req; 1024 case SVt_PVLV:
1025 case SVt_PVGV:
1026 req->type = type_fh;
1027 req->sv1 = newSVsv (fh_or_path);
1028 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1029 break;
1030
1031 default:
1032 req->type = type_path;
1033 req_set_path1 (req, fh_or_path);
1034 break;
475 } 1035 }
476 else
477 reqe = reqs = req;
478
479 pthread_cond_signal (&reqwait);
480 pthread_mutex_unlock (&reqlock);
481
482 if (nreqs > max_outstanding)
483 for (;;)
484 {
485 poll_cb ();
486
487 if (nreqs <= max_outstanding)
488 break;
489
490 poll_wait ();
491 }
492}
493
494static void end_thread (void)
495{
496 aio_req req;
497 Newz (0, req, 1, aio_cb);
498 req->type = REQ_QUIT;
499
500 req_send (req);
501}
502
503static void min_parallel (int nthreads)
504{
505 if (wanted < nthreads)
506 wanted = nthreads;
507}
508
509static void max_parallel (int nthreads)
510{
511 int cur = started;
512
513 if (wanted > nthreads)
514 wanted = nthreads;
515
516 while (cur > wanted)
517 {
518 end_thread ();
519 cur--;
520 }
521
522 while (started > wanted)
523 {
524 poll_wait ();
525 poll_cb ();
526 }
527}
528
529static void create_pipe ()
530{
531 if (pipe (respipe))
532 croak ("unable to initialize result pipe");
533
534 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
535 croak ("cannot set result pipe to nonblocking mode");
536
537 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
538 croak ("cannot set result pipe to nonblocking mode");
539} 1036}
540 1037
541/*****************************************************************************/ 1038/*****************************************************************************/
542/* work around various missing functions */
543 1039
544#if !HAVE_PREADWRITE 1040static void
545# define pread aio_pread 1041ts_set (struct timespec *ts, NV value)
546# define pwrite aio_pwrite
547
548/*
549 * make our pread/pwrite safe against themselves, but not against
550 * normal read/write by using a mutex. slows down execution a lot,
551 * but that's your problem, not mine.
552 */
553static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
554
555static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
556{ 1042{
557 ssize_t res; 1043 ts->tv_sec = value;
558 off_t ooffset; 1044 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
559
560 pthread_mutex_lock (&preadwritelock);
561 ooffset = lseek (fd, 0, SEEK_CUR);
562 lseek (fd, offset, SEEK_SET);
563 res = read (fd, buf, count);
564 lseek (fd, ooffset, SEEK_SET);
565 pthread_mutex_unlock (&preadwritelock);
566
567 return res;
568} 1045}
569 1046
570static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1047static NV
1048ts_get (const struct timespec *ts)
571{ 1049{
572 ssize_t res; 1050 return ts->tv_sec + ts->tv_nsec * 1e-9;
573 off_t ooffset;
574
575 pthread_mutex_lock (&preadwritelock);
576 ooffset = lseek (fd, 0, SEEK_CUR);
577 lseek (fd, offset, SEEK_SET);
578 res = write (fd, buf, count);
579 lseek (fd, offset, SEEK_SET);
580 pthread_mutex_unlock (&preadwritelock);
581
582 return res;
583} 1051}
584#endif
585 1052
586#if !HAVE_FDATASYNC 1053/*****************************************************************************/
587# define fdatasync fsync
588#endif
589 1054
590#if !HAVE_READAHEAD 1055XS(boot_IO__AIO) ecb_cold;
591# define readahead aio_readahead
592 1056
593static ssize_t readahead (int fd, off_t offset, size_t count) 1057MODULE = IO::AIO PACKAGE = IO::AIO
594{
595 char readahead_buf[4096];
596 1058
597 while (count > 0) 1059PROTOTYPES: ENABLE
598 {
599 size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
600 1060
601 pread (fd, readahead_buf, len, offset); 1061BOOT:
602 offset += len;
603 count -= len;
604 }
605
606 errno = 0;
607}
608#endif
609
610#if !HAVE_READDIR_R
611# define readdir_r aio_readdir_r
612
613static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
614
615static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
616{ 1062{
617 struct dirent *e; 1063 static const struct {
618 int errorno; 1064 const char *name;
1065 IV iv;
1066 } *civ, const_iv[] = {
1067# define const_niv(name, value) { # name, (IV) value },
1068# define const_iv(name) { # name, (IV) name },
1069# define const_eio(name) { # name, (IV) EIO_ ## name },
619 1070
620 pthread_mutex_lock (&readdirlock); 1071 /* you have to re-run ./gendef0 after adding/removing any constants here */
1072 /* the first block can be undef if missing */
1073 const_iv (ENOSYS)
1074 const_iv (EXDEV)
1075 const_iv (EBADR)
621 1076
622 e = readdir (dirp); 1077 /* for lseek */
623 errorno = errno; 1078 const_iv (SEEK_DATA)
1079 const_iv (SEEK_HOLE)
624 1080
625 if (e) 1081 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
626 { 1082 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
627 *res = ent; 1083 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
628 strcpy (ent->d_name, e->d_name); 1084 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
629 } 1085 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
630 else 1086 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
631 *res = 0;
632 1087
633 pthread_mutex_unlock (&readdirlock); 1088 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1089 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1090 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1091 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1092 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
634 1093
635 errno = errorno; 1094 /* the second block will be 0 when missing */
636 return e ? 0 : -1; 1095 const_iv (O_ACCMODE)
637}
638#endif
639 1096
640/* sendfile always needs emulation */ 1097 const_iv (O_RDONLY)
641static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) 1098 const_iv (O_WRONLY)
642{ 1099 const_iv (O_RDWR)
643 ssize_t res; 1100 const_iv (O_CREAT)
1101 const_iv (O_TRUNC)
1102 const_iv (O_EXCL)
1103 const_iv (O_APPEND)
644 1104
645 if (!count) 1105 const_iv (O_ASYNC)
646 return 0; 1106 const_iv (O_DIRECT)
1107 const_iv (O_NOATIME)
647 1108
648#if HAVE_SENDFILE 1109 const_iv (O_CLOEXEC)
649# if __linux 1110 const_iv (O_NOCTTY)
650 res = sendfile (ofd, ifd, &offset, count); 1111 const_iv (O_NOFOLLOW)
1112 const_iv (O_NONBLOCK)
1113 const_iv (O_EXEC)
1114 const_iv (O_SEARCH)
1115 const_iv (O_DIRECTORY)
1116 const_iv (O_DSYNC)
1117 const_iv (O_RSYNC)
1118 const_iv (O_SYNC)
1119 const_iv (O_PATH)
1120 const_iv (O_TMPFILE)
1121 const_iv (O_TTY_INIT)
651 1122
652# elif __freebsd 1123 const_iv (S_IFIFO)
653 /* 1124 const_iv (S_IFCHR)
654 * Of course, the freebsd sendfile is a dire hack with no thoughts 1125 const_iv (S_IFBLK)
655 * wasted on making it similar to other I/O functions. 1126 const_iv (S_IFLNK)
656 */ 1127 const_iv (S_IFREG)
1128 const_iv (S_IFDIR)
1129 const_iv (S_IFWHT)
1130 const_iv (S_IFSOCK)
1131 const_iv (S_IFMT)
1132
1133 const_iv (ST_RDONLY)
1134 const_iv (ST_NOSUID)
1135 const_iv (ST_NODEV)
1136 const_iv (ST_NOEXEC)
1137 const_iv (ST_SYNCHRONOUS)
1138 const_iv (ST_MANDLOCK)
1139 const_iv (ST_WRITE)
1140 const_iv (ST_APPEND)
1141 const_iv (ST_IMMUTABLE)
1142 const_iv (ST_NOATIME)
1143 const_iv (ST_NODIRATIME)
1144 const_iv (ST_RELATIME)
1145
1146 const_iv (PROT_NONE)
1147 const_iv (PROT_EXEC)
1148 const_iv (PROT_READ)
1149 const_iv (PROT_WRITE)
1150
1151 const_iv (MAP_PRIVATE)
1152 const_iv (MAP_SHARED)
1153 const_iv (MAP_FIXED)
1154 const_iv (MAP_ANONYMOUS)
1155
1156 /* linuxish */
1157 const_iv (MAP_LOCKED)
1158 const_iv (MAP_NORESERVE)
1159 const_iv (MAP_POPULATE)
1160 const_iv (MAP_NONBLOCK)
1161 const_iv (MAP_GROWSDOWN)
1162 const_iv (MAP_32BIT)
1163 const_iv (MAP_HUGETLB)
1164 const_iv (MAP_STACK)
1165
1166 const_iv (MREMAP_MAYMOVE)
1167 const_iv (MREMAP_FIXED)
1168
1169 const_iv (F_DUPFD_CLOEXEC)
1170
1171 const_iv (MSG_CMSG_CLOEXEC)
1172 const_iv (SOCK_CLOEXEC)
1173
1174 const_iv (F_OFD_GETLK)
1175 const_iv (F_OFD_SETLK)
1176 const_iv (F_OFD_GETLKW)
1177
1178 const_iv (FIFREEZE)
1179 const_iv (FITHAW)
1180 const_iv (FITRIM)
1181 const_iv (FICLONE)
1182 const_iv (FICLONERANGE)
1183 const_iv (FIDEDUPERANGE)
1184
1185 const_iv (FS_IOC_GETFLAGS)
1186 const_iv (FS_IOC_SETFLAGS)
1187 const_iv (FS_IOC_GETVERSION)
1188 const_iv (FS_IOC_SETVERSION)
1189 const_iv (FS_IOC_FIEMAP)
1190 const_iv (FS_IOC_FSGETXATTR)
1191 const_iv (FS_IOC_FSSETXATTR)
1192 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1193 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1194 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1195
1196 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1197
1198 const_iv (FS_SECRM_FL)
1199 const_iv (FS_UNRM_FL)
1200 const_iv (FS_COMPR_FL)
1201 const_iv (FS_SYNC_FL)
1202 const_iv (FS_IMMUTABLE_FL)
1203 const_iv (FS_APPEND_FL)
1204 const_iv (FS_NODUMP_FL)
1205 const_iv (FS_NOATIME_FL)
1206 const_iv (FS_DIRTY_FL)
1207 const_iv (FS_COMPRBLK_FL)
1208 const_iv (FS_NOCOMP_FL)
1209 const_iv (FS_ENCRYPT_FL)
1210 const_iv (FS_BTREE_FL)
1211 const_iv (FS_INDEX_FL)
1212 const_iv (FS_JOURNAL_DATA_FL)
1213 const_iv (FS_NOTAIL_FL)
1214 const_iv (FS_DIRSYNC_FL)
1215 const_iv (FS_TOPDIR_FL)
1216 const_iv (FS_FL_USER_MODIFIABLE)
1217
1218 const_iv (FS_XFLAG_REALTIME)
1219 const_iv (FS_XFLAG_PREALLOC)
1220 const_iv (FS_XFLAG_IMMUTABLE)
1221 const_iv (FS_XFLAG_APPEND)
1222 const_iv (FS_XFLAG_SYNC)
1223 const_iv (FS_XFLAG_NOATIME)
1224 const_iv (FS_XFLAG_NODUMP)
1225 const_iv (FS_XFLAG_RTINHERIT)
1226 const_iv (FS_XFLAG_PROJINHERIT)
1227 const_iv (FS_XFLAG_NOSYMLINKS)
1228 const_iv (FS_XFLAG_EXTSIZE)
1229 const_iv (FS_XFLAG_EXTSZINHERIT)
1230 const_iv (FS_XFLAG_NODEFRAG)
1231 const_iv (FS_XFLAG_FILESTREAM)
1232 const_iv (FS_XFLAG_DAX)
1233 const_iv (FS_XFLAG_HASATTR)
1234
1235 const_iv (FIEMAP_FLAG_SYNC)
1236 const_iv (FIEMAP_FLAG_XATTR)
1237 const_iv (FIEMAP_FLAGS_COMPAT)
1238 const_iv (FIEMAP_EXTENT_LAST)
1239 const_iv (FIEMAP_EXTENT_UNKNOWN)
1240 const_iv (FIEMAP_EXTENT_DELALLOC)
1241 const_iv (FIEMAP_EXTENT_ENCODED)
1242 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1243 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1244 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1245 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1246 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1247 const_iv (FIEMAP_EXTENT_MERGED)
1248 const_iv (FIEMAP_EXTENT_SHARED)
1249
1250 const_iv (SPLICE_F_MOVE)
1251 const_iv (SPLICE_F_NONBLOCK)
1252 const_iv (SPLICE_F_MORE)
1253 const_iv (SPLICE_F_GIFT)
1254
1255 const_iv (EFD_CLOEXEC)
1256 const_iv (EFD_NONBLOCK)
1257 const_iv (EFD_SEMAPHORE)
1258
1259 const_iv (CLOCK_REALTIME)
1260 const_iv (CLOCK_MONOTONIC)
1261 const_iv (CLOCK_BOOTTIME)
1262 const_iv (CLOCK_REALTIME_ALARM)
1263 const_iv (CLOCK_BOOTTIME_ALARM)
1264
1265 const_iv (TFD_NONBLOCK)
1266 const_iv (TFD_CLOEXEC)
1267
1268 const_iv (TFD_TIMER_ABSTIME)
1269 const_iv (TFD_TIMER_CANCEL_ON_SET)
1270
1271 /* these are libeio constants, and are independent of gendef0 */
1272 const_eio (SEEK_SET)
1273 const_eio (SEEK_CUR)
1274 const_eio (SEEK_END)
1275
1276 const_eio (MCL_FUTURE)
1277 const_eio (MCL_CURRENT)
1278 const_eio (MCL_ONFAULT)
1279
1280 const_eio (MS_ASYNC)
1281 const_eio (MS_INVALIDATE)
1282 const_eio (MS_SYNC)
1283
1284 const_eio (MT_MODIFY)
1285
1286 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1287 const_eio (SYNC_FILE_RANGE_WRITE)
1288 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1289
1290 const_eio (FALLOC_FL_KEEP_SIZE)
1291 const_eio (FALLOC_FL_PUNCH_HOLE)
1292 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1293 const_eio (FALLOC_FL_ZERO_RANGE)
1294 const_eio (FALLOC_FL_INSERT_RANGE)
1295 const_eio (FALLOC_FL_UNSHARE_RANGE)
1296
1297 const_eio (RENAME_NOREPLACE)
1298 const_eio (RENAME_EXCHANGE)
1299 const_eio (RENAME_WHITEOUT)
1300
1301 const_eio (READDIR_DENTS)
1302 const_eio (READDIR_DIRS_FIRST)
1303 const_eio (READDIR_STAT_ORDER)
1304 const_eio (READDIR_FOUND_UNKNOWN)
1305
1306 const_eio (DT_UNKNOWN)
1307 const_eio (DT_FIFO)
1308 const_eio (DT_CHR)
1309 const_eio (DT_DIR)
1310 const_eio (DT_BLK)
1311 const_eio (DT_REG)
1312 const_eio (DT_LNK)
1313 const_eio (DT_SOCK)
1314 const_eio (DT_WHT)
1315 };
1316
1317 aio_stash = gv_stashpv ("IO::AIO" , 1);
1318 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1319 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1320 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1321
1322 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1323 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1324
1325 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1326
1327 /* allocate dummy pipe fd for aio_close */
657 { 1328 {
658 off_t sbytes; 1329 int pipefd [2];
659 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
660 1330
661 if (res < 0 && sbytes) 1331 if (
662 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ 1332#ifdef _WIN32
663 res = sbytes; 1333 _pipe (pipefd, 1, _O_BINARY) < 0
1334#else
1335 pipe (pipefd) < 0
1336 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1337#endif
1338 || close (pipefd [1]) < 0
1339 )
1340 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1341
1342 close_fd = pipefd [0];
664 } 1343 }
665 1344
666# elif __hpux 1345 reinit ();
667 res = sendfile (ofd, ifd, offset, count, 0, 0);
668
669# elif __solaris
670 {
671 struct sendfilevec vec;
672 size_t sbytes;
673
674 vec.sfv_fd = ifd;
675 vec.sfv_flag = 0;
676 vec.sfv_off = offset;
677 vec.sfv_len = count;
678
679 res = sendfilev (ofd, &vec, 1, &sbytes);
680
681 if (res < 0 && sbytes)
682 res = sbytes;
683 }
684
685# endif
686#else
687 res = -1;
688 errno = ENOSYS;
689#endif
690
691 if (res < 0
692 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
693#if __solaris
694 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
695#endif
696 )
697 )
698 {
699 /* emulate sendfile. this is a major pain in the ass */
700 char buf[4096];
701 res = 0;
702
703 while (count)
704 {
705 ssize_t cnt;
706
707 cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
708
709 if (cnt <= 0)
710 {
711 if (cnt && !res) res = -1;
712 break;
713 }
714
715 cnt = write (ofd, buf, cnt);
716
717 if (cnt <= 0)
718 {
719 if (cnt && !res) res = -1;
720 break;
721 }
722
723 offset += cnt;
724 res += cnt;
725 count -= cnt;
726 }
727 }
728
729 return res;
730} 1346}
731 1347
732/* read a full directory */
733static int scandir_ (const char *path, void **namesp)
734{
735 DIR *dirp = opendir (path);
736 union
737 {
738 struct dirent d;
739 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
740 } u;
741 struct dirent *entp;
742 char *name, *names;
743 int memlen = 4096;
744 int memofs = 0;
745 int res = 0;
746 int errorno;
747
748 if (!dirp)
749 return -1;
750
751 names = malloc (memlen);
752
753 for (;;)
754 {
755 errno = 0, readdir_r (dirp, &u.d, &entp);
756
757 if (!entp)
758 break;
759
760 name = entp->d_name;
761
762 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
763 {
764 int len = strlen (name) + 1;
765
766 res++;
767
768 while (memofs + len > memlen)
769 {
770 memlen *= 2;
771 names = realloc (names, memlen);
772 if (!names)
773 break;
774 }
775
776 memcpy (names + memofs, name, len);
777 memofs += len;
778 }
779 }
780
781 errorno = errno;
782 closedir (dirp);
783
784 if (errorno)
785 {
786 free (names);
787 errno = errorno;
788 res = -1;
789 }
790
791 *namesp = (void *)names;
792 return res;
793}
794
795/*****************************************************************************/
796
797static void *aio_proc (void *thr_arg)
798{
799 aio_req req;
800 int type;
801
802 do
803 {
804 pthread_mutex_lock (&reqlock);
805
806 for (;;)
807 {
808 req = reqs;
809
810 if (reqs)
811 {
812 reqs = reqs->next;
813 if (!reqs) reqe = 0;
814 }
815
816 if (req)
817 break;
818
819 pthread_cond_wait (&reqwait, &reqlock);
820 }
821
822 pthread_mutex_unlock (&reqlock);
823
824 errno = 0; /* strictly unnecessary */
825 type = req->type; /* remember type for QUIT check */
826
827 if (!(req->flags & FLAG_CANCELLED))
828 switch (type)
829 {
830 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
831 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
832
833 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
834 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
835
836 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
837 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
838 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
839
840 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
841 case REQ_CLOSE: req->result = close (req->fd); break;
842 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
843 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
844 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
845 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
846 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
847
848 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
849 case REQ_FSYNC: req->result = fsync (req->fd); break;
850 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
851
852 case REQ_SLEEP:
853 {
854 struct timeval tv;
855
856 tv.tv_sec = req->fd;
857 tv.tv_usec = req->fd2;
858
859 req->result = select (0, 0, 0, 0, &tv);
860 }
861
862 case REQ_GROUP:
863 case REQ_NOP:
864 case REQ_QUIT:
865 break;
866
867 default:
868 req->result = ENOSYS;
869 break;
870 }
871
872 req->errorno = errno;
873
874 pthread_mutex_lock (&reslock);
875
876 req->next = 0;
877
878 if (rese)
879 {
880 rese->next = req;
881 rese = req;
882 }
883 else
884 {
885 rese = ress = req;
886
887 /* write a dummy byte to the pipe so fh becomes ready */
888 write (respipe [1], &respipe, 1);
889 }
890
891 pthread_mutex_unlock (&reslock);
892 }
893 while (type != REQ_QUIT);
894
895 return 0;
896}
897
898/*****************************************************************************/
899
900static void atfork_prepare (void)
901{
902 pthread_mutex_lock (&reqlock);
903 pthread_mutex_lock (&reslock);
904#if !HAVE_PREADWRITE
905 pthread_mutex_lock (&preadwritelock);
906#endif
907#if !HAVE_READDIR_R
908 pthread_mutex_lock (&readdirlock);
909#endif
910}
911
912static void atfork_parent (void)
913{
914#if !HAVE_READDIR_R
915 pthread_mutex_unlock (&readdirlock);
916#endif
917#if !HAVE_PREADWRITE
918 pthread_mutex_unlock (&preadwritelock);
919#endif
920 pthread_mutex_unlock (&reslock);
921 pthread_mutex_unlock (&reqlock);
922}
923
924static void atfork_child (void)
925{
926 aio_req prv;
927
928 started = 0;
929
930 while (reqs)
931 {
932 prv = reqs;
933 reqs = prv->next;
934 req_free (prv);
935 }
936
937 reqs = reqe = 0;
938
939 while (ress)
940 {
941 prv = ress;
942 ress = prv->next;
943 req_free (prv);
944 }
945
946 ress = rese = 0;
947
948 close (respipe [0]);
949 close (respipe [1]);
950 create_pipe ();
951
952 atfork_parent ();
953}
954
955#define dREQ \
956 aio_req req; \
957 int req_pri = next_pri; \
958 next_pri = DEFAULT_PRI + PRI_BIAS; \
959 \
960 if (SvOK (callback) && !SvROK (callback)) \
961 croak ("callback must be undef or of reference type"); \
962 \
963 Newz (0, req, 1, aio_cb); \
964 if (!req) \
965 croak ("out of memory during aio_req allocation"); \
966 \
967 req->callback = newSVsv (callback); \
968 req->pri = req_pri
969
970#define REQ_SEND \
971 req_send (req); \
972 \
973 if (GIMME_V != G_VOID) \
974 XPUSHs (req_sv (req, AIO_REQ_KLASS));
975
976MODULE = IO::AIO PACKAGE = IO::AIO
977
978PROTOTYPES: ENABLE
979
980BOOT:
981{
982 HV *stash = gv_stashpv ("IO::AIO", 1);
983 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
984 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
985 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
986
987 create_pipe ();
988 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
989}
990
991void 1348void
992min_parallel (nthreads) 1349reinit ()
993 int nthreads 1350 PROTOTYPE:
1351
1352void
1353max_poll_reqs (unsigned int nreqs)
994 PROTOTYPE: $ 1354 PROTOTYPE: $
1355 CODE:
1356 eio_set_max_poll_reqs (nreqs);
995 1357
996void 1358void
997max_parallel (nthreads) 1359max_poll_time (double nseconds)
998 int nthreads
999 PROTOTYPE: $ 1360 PROTOTYPE: $
1000
1001int
1002max_outstanding (nreqs)
1003 int nreqs
1004 PROTOTYPE: $
1005 CODE: 1361 CODE:
1006 RETVAL = max_outstanding; 1362 eio_set_max_poll_time (nseconds);
1363
1364void
1365min_parallel (unsigned int nthreads)
1366 PROTOTYPE: $
1367 CODE:
1368 eio_set_min_parallel (nthreads);
1369
1370void
1371max_parallel (unsigned int nthreads)
1372 PROTOTYPE: $
1373 CODE:
1374 eio_set_max_parallel (nthreads);
1375
1376void
1377max_idle (unsigned int nthreads)
1378 PROTOTYPE: $
1379 CODE:
1380 eio_set_max_idle (nthreads);
1381
1382void
1383idle_timeout (unsigned int seconds)
1384 PROTOTYPE: $
1385 CODE:
1386 eio_set_idle_timeout (seconds);
1387
1388void
1389max_outstanding (unsigned int maxreqs)
1390 PROTOTYPE: $
1391 CODE:
1007 max_outstanding = nreqs; 1392 max_outstanding = maxreqs;
1008 1393
1009void 1394void
1010aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1395aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1011 SV * pathname
1012 int flags
1013 int mode
1014 SV * callback
1015 PROTOTYPE: $$$;$
1016 PPCODE: 1396 PPCODE:
1017{ 1397{
1018 dREQ; 1398 dREQ;
1019 1399
1020 req->type = REQ_OPEN; 1400 req->type = EIO_WD_OPEN;
1021 req->data = newSVsv (pathname); 1401 req_set_path1 (req, pathname);
1022 req->dataptr = SvPVbyte_nolen (req->data);
1023 req->fd = flags;
1024 req->mode = mode;
1025 1402
1026 REQ_SEND; 1403 REQ_SEND;
1027} 1404}
1028 1405
1029void 1406void
1407aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1408 PPCODE:
1409{
1410 dREQ;
1411
1412 req->type = EIO_OPEN;
1413 req_set_path1 (req, pathname);
1414 req->int1 = flags;
1415 req->int2 = mode;
1416
1417 REQ_SEND;
1418}
1419
1420void
1030aio_close (fh,callback=&PL_sv_undef) 1421aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1031 SV * fh
1032 SV * callback
1033 PROTOTYPE: $;$
1034 ALIAS: 1422 ALIAS:
1035 aio_close = REQ_CLOSE
1036 aio_fsync = REQ_FSYNC 1423 aio_fsync = EIO_FSYNC
1037 aio_fdatasync = REQ_FDATASYNC 1424 aio_fdatasync = EIO_FDATASYNC
1425 aio_syncfs = EIO_SYNCFS
1038 PPCODE: 1426 PPCODE:
1039{ 1427{
1428 int fd = s_fileno_croak (fh, 0);
1040 dREQ; 1429 dREQ;
1041 1430
1042 req->type = ix; 1431 req->type = ix;
1043 req->fh = newSVsv (fh); 1432 req->sv1 = newSVsv (fh);
1044 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1433 req->int1 = fd;
1045 1434
1046 REQ_SEND (req); 1435 REQ_SEND;
1047} 1436}
1048 1437
1049void 1438void
1439aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1440 PPCODE:
1441{
1442 int fd = s_fileno_croak (fh, 0);
1443 dREQ;
1444
1445 req->type = EIO_SYNC_FILE_RANGE;
1446 req->sv1 = newSVsv (fh);
1447 req->int1 = fd;
1448 req->offs = offset;
1449 req->size = nbytes;
1450 req->int2 = flags;
1451
1452 REQ_SEND;
1453}
1454
1455void
1456aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1457 PPCODE:
1458{
1459 int fd = s_fileno_croak (fh, 0);
1460 dREQ;
1461
1462 req->type = EIO_FALLOCATE;
1463 req->sv1 = newSVsv (fh);
1464 req->int1 = fd;
1465 req->int2 = mode;
1466 req->offs = offset;
1467 req->size = len;
1468
1469 REQ_SEND;
1470}
1471
1472void
1473aio_close (SV *fh, SV *callback = &PL_sv_undef)
1474 PPCODE:
1475{
1476 int fd = s_fileno_croak (fh, 0);
1477 dREQ;
1478
1479 req->type = EIO_DUP2;
1480 req->int1 = close_fd;
1481 req->sv2 = newSVsv (fh);
1482 req->int2 = fd;
1483
1484 REQ_SEND;
1485}
1486
1487void
1488aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1489 PPCODE:
1490{
1491 int fd = s_fileno_croak (fh, 0);
1492 dREQ;
1493
1494 req->type = EIO_SEEK;
1495 req->sv1 = newSVsv (fh);
1496 req->int1 = fd;
1497 req->offs = SvVAL64 (offset);
1498 req->int2 = whence;
1499
1500 REQ_SEND;
1501}
1502
1503void
1050aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1504aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1051 SV * fh
1052 UV offset
1053 UV length
1054 SV * data
1055 UV dataoffset
1056 SV * callback
1057 ALIAS: 1505 ALIAS:
1058 aio_read = REQ_READ 1506 aio_read = EIO_READ
1059 aio_write = REQ_WRITE 1507 aio_write = EIO_WRITE
1060 PROTOTYPE: $$$$$;$
1061 PPCODE: 1508 PPCODE:
1062{ 1509{
1063 aio_req req;
1064 STRLEN svlen; 1510 STRLEN svlen;
1511 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1065 char *svptr = SvPVbyte (data, svlen); 1512 char *svptr = SvPVbyte (data, svlen);
1066 1513 UV len = SvUV (length);
1067 SvUPGRADE (data, SVt_PV);
1068 SvPOK_on (data);
1069 1514
1070 if (dataoffset < 0) 1515 if (dataoffset < 0)
1071 dataoffset += svlen; 1516 dataoffset += svlen;
1072 1517
1073 if (dataoffset < 0 || dataoffset > svlen) 1518 if (dataoffset < 0 || dataoffset > svlen)
1074 croak ("data offset outside of string"); 1519 croak ("dataoffset outside of data scalar");
1075 1520
1076 if (ix == REQ_WRITE) 1521 if (ix == EIO_WRITE)
1077 { 1522 {
1078 /* write: check length and adjust. */ 1523 /* write: check length and adjust. */
1079 if (length < 0 || length + dataoffset > svlen) 1524 if (!SvOK (length) || len + dataoffset > svlen)
1080 length = svlen - dataoffset; 1525 len = svlen - dataoffset;
1081 } 1526 }
1082 else 1527 else
1083 { 1528 {
1084 /* read: grow scalar as necessary */ 1529 /* read: check type and grow scalar as necessary */
1530 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1085 svptr = SvGROW (data, length + dataoffset); 1531 svptr = sv_grow (data, len + dataoffset + 1);
1532 else if (SvCUR (data) < len + dataoffset)
1533 croak ("length + dataoffset outside of scalar, and cannot grow");
1086 } 1534 }
1087
1088 if (length < 0)
1089 croak ("length must not be negative");
1090 1535
1091 { 1536 {
1092 dREQ; 1537 dREQ;
1093 1538
1094 req->type = ix; 1539 req->type = ix;
1095 req->fh = newSVsv (fh); 1540 req->sv1 = newSVsv (fh);
1096 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1541 req->int1 = fd;
1097 : IoOFP (sv_2io (fh))); 1542 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1098 req->offset = offset; 1543 req->size = len;
1099 req->length = length;
1100 req->data = SvREFCNT_inc (data); 1544 req->sv2 = SvREFCNT_inc (data);
1101 req->dataptr = (char *)svptr + dataoffset; 1545 req->ptr2 = (char *)svptr + dataoffset;
1546 req->stroffset = dataoffset;
1102 1547
1103 if (!SvREADONLY (data)) 1548 if (!SvREADONLY (data))
1104 { 1549 {
1105 SvREADONLY_on (data); 1550 SvREADONLY_on (data);
1106 req->data2ptr = (void *)data; 1551 req->flags |= FLAG_SV2_RO_OFF;
1107 } 1552 }
1108 1553
1109 REQ_SEND; 1554 REQ_SEND;
1110 } 1555 }
1111} 1556}
1112 1557
1113void 1558void
1114aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1559aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1115 SV * out_fh 1560 ALIAS:
1116 SV * in_fh 1561 aio_ioctl = EIO_IOCTL
1117 UV in_offset 1562 aio_fcntl = EIO_FCNTL
1118 UV length
1119 SV * callback
1120 PROTOTYPE: $$$$;$
1121 PPCODE: 1563 PPCODE:
1122{ 1564{
1123 dREQ; 1565 int fd = s_fileno_croak (fh, 0);
1566 char *svptr;
1124 1567
1125 req->type = REQ_SENDFILE; 1568 if (SvPOK (arg) || !SvNIOK (arg))
1126 req->fh = newSVsv (out_fh);
1127 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1128 req->fh2 = newSVsv (in_fh);
1129 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1130 req->offset = in_offset;
1131 req->length = length;
1132
1133 REQ_SEND;
1134}
1135
1136void
1137aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1138 SV * fh
1139 UV offset
1140 IV length
1141 SV * callback
1142 PROTOTYPE: $$$;$
1143 PPCODE:
1144{
1145 dREQ;
1146
1147 req->type = REQ_READAHEAD;
1148 req->fh = newSVsv (fh);
1149 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1150 req->offset = offset;
1151 req->length = length;
1152
1153 REQ_SEND;
1154}
1155
1156void
1157aio_stat (fh_or_path,callback=&PL_sv_undef)
1158 SV * fh_or_path
1159 SV * callback
1160 ALIAS:
1161 aio_stat = REQ_STAT
1162 aio_lstat = REQ_LSTAT
1163 PPCODE:
1164{
1165 dREQ;
1166
1167 New (0, req->statdata, 1, Stat_t);
1168 if (!req->statdata)
1169 { 1569 {
1170 req_free (req); 1570 STRLEN svlen;
1171 croak ("out of memory during aio_req->statdata allocation"); 1571 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1172 } 1572#ifdef IOCPARM_LEN
1573 STRLEN need = IOCPARM_LEN (request);
1574#else
1575 STRLEN need = 256;
1576#endif
1173 1577
1174 if (SvPOK (fh_or_path)) 1578 if (svlen < need)
1175 { 1579 svptr = SvGROW (arg, need);
1176 req->type = ix;
1177 req->data = newSVsv (fh_or_path);
1178 req->dataptr = SvPVbyte_nolen (req->data);
1179 } 1580 }
1180 else 1581 else
1582 svptr = (char *)SvIV (arg);
1583
1181 { 1584 {
1585 dREQ;
1586
1182 req->type = REQ_FSTAT; 1587 req->type = ix;
1183 req->fh = newSVsv (fh_or_path); 1588 req->sv1 = newSVsv (fh);
1184 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1589 req->int1 = fd;
1590 req->int2 = (long)request;
1591 req->sv2 = SvREFCNT_inc (arg);
1592 req->ptr2 = svptr;
1593
1594 REQ_SEND;
1185 } 1595 }
1596}
1597
1598void
1599aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1600 ALIAS:
1601 aio_readlink = EIO_READLINK
1602 aio_realpath = EIO_REALPATH
1603 PPCODE:
1604{
1605 dREQ;
1606
1607 req->type = ix;
1608 req_set_path1 (req, pathname);
1186 1609
1187 REQ_SEND; 1610 REQ_SEND;
1188} 1611}
1189 1612
1190void 1613void
1191aio_unlink (pathname,callback=&PL_sv_undef) 1614aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1192 SV * pathname 1615 PPCODE:
1193 SV * callback 1616{
1617 int ifd = s_fileno_croak (in_fh , 0);
1618 int ofd = s_fileno_croak (out_fh, 1);
1619 dREQ;
1620
1621 req->type = EIO_SENDFILE;
1622 req->sv1 = newSVsv (out_fh);
1623 req->int1 = ofd;
1624 req->sv2 = newSVsv (in_fh);
1625 req->int2 = ifd;
1626 req->offs = in_offset;
1627 req->size = length;
1628
1629 REQ_SEND;
1630}
1631
1632void
1633aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1634 PPCODE:
1635{
1636 int fd = s_fileno_croak (fh, 0);
1637 dREQ;
1638
1639 req->type = EIO_READAHEAD;
1640 req->sv1 = newSVsv (fh);
1641 req->int1 = fd;
1642 req->offs = offset;
1643 req->size = length;
1644
1645 REQ_SEND;
1646}
1647
1648void
1649aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1194 ALIAS: 1650 ALIAS:
1651 aio_stat = EIO_STAT
1652 aio_lstat = EIO_LSTAT
1653 aio_statvfs = EIO_STATVFS
1654 PPCODE:
1655{
1656 dREQ;
1657
1658 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1659
1660 REQ_SEND;
1661}
1662
1663void
1664st_xtime ()
1665 ALIAS:
1666 st_atime = 0x01
1667 st_mtime = 0x02
1668 st_ctime = 0x04
1669 st_btime = 0x08
1670 st_xtime = 0x0f
1671 PPCODE:
1672 EXTEND (SP, 4);
1673 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1674 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1675 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1676 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1677
1678void
1679st_xtimensec ()
1680 ALIAS:
1681 st_atimensec = 0x01
1682 st_mtimensec = 0x02
1683 st_ctimensec = 0x04
1684 st_btimensec = 0x08
1685 st_xtimensec = 0x0f
1686 st_btimesec = 0x10
1687 st_gen = 0x20
1688 PPCODE:
1689 EXTEND (SP, 4);
1690 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1691 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1692 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1693 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1694 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1695 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1696
1697UV
1698major (UV dev)
1699 ALIAS:
1700 minor = 1
1701 CODE:
1702 RETVAL = ix ? minor (dev) : major (dev);
1703 OUTPUT:
1704 RETVAL
1705
1706UV
1707makedev (UV maj, UV min)
1708 CODE:
1709 RETVAL = makedev (maj, min);
1710 OUTPUT:
1711 RETVAL
1712
1713void
1714aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1715 PPCODE:
1716{
1717 dREQ;
1718
1719 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1720 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1721 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1722
1723 REQ_SEND;
1724}
1725
1726void
1727aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1728 PPCODE:
1729{
1730 dREQ;
1731
1732 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1733 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1734
1735 REQ_SEND;
1736}
1737
1738void
1739aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1740 PPCODE:
1741{
1742 dREQ;
1743
1744 req->int2 = mode;
1745 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1746
1747 REQ_SEND;
1748}
1749
1750void
1751aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1752 PPCODE:
1753{
1754 dREQ;
1755
1756 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1757 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1758 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1759
1760 REQ_SEND;
1761}
1762
1763void
1764aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1765 PPCODE:
1766{
1767 dREQ;
1768
1769 req->type = EIO_READDIR;
1770 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1771
1772 if (flags & EIO_READDIR_DENTS)
1773 req->int1 |= EIO_READDIR_CUSTOM2;
1774
1775 req_set_path1 (req, pathname);
1776
1777 REQ_SEND;
1778}
1779
1780void
1781aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1782 PPCODE:
1783{
1784 dREQ;
1785
1786 req->type = EIO_MKDIR;
1787 req->int2 = mode;
1788 req_set_path1 (req, pathname);
1789
1790 REQ_SEND;
1791}
1792
1793void
1794aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1795 ALIAS:
1195 aio_unlink = REQ_UNLINK 1796 aio_unlink = EIO_UNLINK
1196 aio_rmdir = REQ_RMDIR 1797 aio_rmdir = EIO_RMDIR
1197 aio_readdir = REQ_READDIR 1798 aio_readdir = EIO_READDIR
1198 PPCODE: 1799 PPCODE:
1199{ 1800{
1200 dREQ; 1801 dREQ;
1201 1802
1202 req->type = ix; 1803 req->type = ix;
1203 req->data = newSVsv (pathname); 1804 req_set_path1 (req, pathname);
1204 req->dataptr = SvPVbyte_nolen (req->data); 1805
1205
1206 REQ_SEND; 1806 REQ_SEND;
1207} 1807}
1208 1808
1209void 1809void
1210aio_link (oldpath,newpath,callback=&PL_sv_undef) 1810aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1211 SV * oldpath
1212 SV * newpath
1213 SV * callback
1214 ALIAS: 1811 ALIAS:
1215 aio_link = REQ_LINK 1812 aio_link = EIO_LINK
1216 aio_symlink = REQ_SYMLINK 1813 aio_symlink = EIO_SYMLINK
1217 aio_rename = REQ_RENAME 1814 aio_rename = EIO_RENAME
1218 PPCODE: 1815 PPCODE:
1219{ 1816{
1817 eio_wd wd2 = 0;
1220 dREQ; 1818 dREQ;
1221 1819
1222 req->type = ix; 1820 req->type = ix;
1223 req->fh = newSVsv (oldpath); 1821 req_set_path1 (req, oldpath);
1224 req->data2ptr = SvPVbyte_nolen (req->fh); 1822 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1225 req->data = newSVsv (newpath); 1823 req->int3 = (long)wd2;
1226 req->dataptr = SvPVbyte_nolen (req->data);
1227 1824
1228 REQ_SEND; 1825 REQ_SEND;
1229} 1826}
1230 1827
1231void 1828void
1232aio_sleep (delay,callback=&PL_sv_undef) 1829aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1233 double delay
1234 SV * callback
1235 PPCODE: 1830 PPCODE:
1236{ 1831{
1832 eio_wd wd2 = 0;
1237 dREQ; 1833 dREQ;
1238 1834
1239 req->type = REQ_SLEEP; 1835 req->type = EIO_RENAME;
1240 req->fd = delay < 0. ? 0 : delay; 1836 req_set_path1 (req, oldpath);
1241 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1837 req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1242 1838 req->int2 = flags;
1839 req->int3 = (long)wd2;
1840
1243 REQ_SEND; 1841 REQ_SEND;
1244} 1842}
1245 1843
1246void 1844void
1247aio_group (callback=&PL_sv_undef) 1845aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1248 SV * callback 1846 PPCODE:
1249 PROTOTYPE: ;$ 1847{
1848 dREQ;
1849
1850 req->type = EIO_MKNOD;
1851 req->int2 = (mode_t)mode;
1852 req->offs = dev;
1853 req_set_path1 (req, pathname);
1854
1855 REQ_SEND;
1856}
1857
1858void
1859aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1860 ALIAS:
1861 aio_mtouch = EIO_MTOUCH
1862 aio_msync = EIO_MSYNC
1250 PPCODE: 1863 PPCODE:
1251{ 1864{
1865 STRLEN svlen;
1866 char *svptr = SvPVbyte (data, svlen);
1867 UV len = SvUV (length);
1868
1869 if (flags < 0)
1870 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1871
1872 if (offset < 0)
1873 offset += svlen;
1874
1875 if (offset < 0 || offset > svlen)
1876 croak ("offset outside of scalar");
1877
1878 if (!SvOK (length) || len + offset > svlen)
1879 len = svlen - offset;
1880
1881 {
1882 dREQ;
1883
1884 req->type = ix;
1885 req->sv2 = SvREFCNT_inc (data);
1886 req->ptr2 = (char *)svptr + offset;
1887 req->size = len;
1888 req->int1 = flags;
1889
1890 REQ_SEND;
1891 }
1892}
1893
1894void
1895aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1896 PPCODE:
1897{
1898 STRLEN svlen;
1899 char *svptr = SvPVbyte (data, svlen);
1900 UV len = SvUV (length);
1901
1902 if (offset < 0)
1903 offset += svlen;
1904
1905 if (offset < 0 || offset > svlen)
1906 croak ("offset outside of scalar");
1907
1908 if (!SvOK (length) || len + offset > svlen)
1909 len = svlen - offset;
1910
1911 {
1912 dREQ;
1913
1914 req->type = EIO_MLOCK;
1915 req->sv2 = SvREFCNT_inc (data);
1916 req->ptr2 = (char *)svptr + offset;
1917 req->size = len;
1918
1919 REQ_SEND;
1920 }
1921}
1922
1923void
1924aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1925 PPCODE:
1926{
1927 dREQ;
1928
1929 req->type = EIO_MLOCKALL;
1930 req->int1 = flags;
1931
1932 REQ_SEND;
1933}
1934
1935void
1936aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
1937 PPCODE:
1938{
1939 int fd = s_fileno_croak (fh, 0);
1252 dREQ; 1940 dREQ;
1253 1941
1254 req->type = REQ_GROUP; 1942 req->type = EIO_CUSTOM;
1255 req_send (req); 1943 req->sv1 = newSVsv (fh);
1944 req->int1 = fd;
1256 1945
1257 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1946 req->feed = fiemap;
1258} 1947#if HAVE_FIEMAP
1948 /* keep our fingers crossed that the next two types are 64 bit */
1949 req->offs = start;
1950 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
1951 req->int2 = flags;
1952 req->int3 = SvOK (count) ? SvIV (count) : -1;
1953#endif
1259 1954
1955 REQ_SEND;
1956}
1957
1260void 1958void
1261aio_nop (callback=&PL_sv_undef) 1959aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1262 SV * callback 1960 PPCODE:
1961{
1962 char *svptr = 0;
1963
1964 sv_clear_foreign (data);
1965
1966 if (length) /* known length, directly read into scalar */
1967 {
1968 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1969 svptr = sv_grow (data, length + 1);
1970 else if (SvCUR (data) < length)
1971 croak ("length outside of scalar, and cannot grow");
1972 else
1973 svptr = SvPVbyte_nolen (data);
1974 }
1975
1976 {
1977 dREQ;
1978
1979 req->type = EIO_SLURP;
1980 req_set_path1 (req, pathname);
1981 req->offs = offset;
1982 req->size = length;
1983 req->sv2 = SvREFCNT_inc (data);
1984 req->ptr2 = svptr;
1985
1986 if (!SvREADONLY (data))
1987 {
1988 SvREADONLY_on (data);
1989 req->flags |= FLAG_SV2_RO_OFF;
1990 }
1991
1992 REQ_SEND;
1993 }
1994}
1995
1996void
1997aio_busy (double delay, SV *callback = &PL_sv_undef)
1263 PPCODE: 1998 PPCODE:
1264{ 1999{
1265 dREQ; 2000 dREQ;
1266 2001
1267 req->type = REQ_NOP; 2002 req->type = EIO_BUSY;
2003 req->nv1 = delay < 0. ? 0. : delay;
1268 2004
1269 REQ_SEND; 2005 REQ_SEND;
1270} 2006}
1271 2007
1272#if 0
1273
1274void 2008void
1275aio_pri (int pri = DEFAULT_PRI) 2009aio_group (SV *callback = &PL_sv_undef)
2010 PPCODE:
2011{
2012 dREQ;
2013
2014 req->type = EIO_GROUP;
2015
2016 PUTBACK;
2017 req_submit (req);
2018 SPAGAIN;
2019
2020 XPUSHs (req_sv (req, aio_grp_stash));
2021}
2022
2023void
2024aio_nop (SV *callback = &PL_sv_undef)
2025 ALIAS:
2026 aio_nop = EIO_NOP
2027 aio_sync = EIO_SYNC
2028 PPCODE:
2029{
2030 dREQ;
2031
2032 req->type = ix;
2033
2034 REQ_SEND;
2035}
2036
2037int
2038aioreq_pri (int pri = NO_INIT)
1276 CODE: 2039 CODE:
2040 RETVAL = next_pri;
2041 if (items > 0)
2042 {
1277 if (pri < PRI_MIN) pri = PRI_MIN; 2043 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1278 if (pri > PRI_MAX) pri = PRI_MAX; 2044 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1279 next_pri = pri + PRI_BIAS; 2045 next_pri = pri;
2046 }
2047 OUTPUT:
2048 RETVAL
1280 2049
1281#endif 2050void
2051aioreq_nice (int nice = 0)
2052 CODE:
2053 nice = next_pri - nice;
2054 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
2055 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
2056 next_pri = nice;
1282 2057
1283void 2058void
1284flush () 2059flush ()
1285 PROTOTYPE:
1286 CODE: 2060 CODE:
1287 while (nreqs) 2061 while (eio_nreqs ())
1288 { 2062 {
1289 poll_wait (); 2063 poll_wait ();
1290 poll_cb (); 2064 poll_cb ();
1291 } 2065 }
1292 2066
1293void 2067int
1294poll() 2068poll ()
1295 PROTOTYPE:
1296 CODE: 2069 CODE:
1297 if (nreqs)
1298 {
1299 poll_wait (); 2070 poll_wait ();
1300 poll_cb (); 2071 RETVAL = poll_cb ();
1301 }
1302
1303int
1304poll_fileno()
1305 PROTOTYPE:
1306 CODE:
1307 RETVAL = respipe [0];
1308 OUTPUT: 2072 OUTPUT:
1309 RETVAL 2073 RETVAL
1310 2074
1311int 2075int
2076poll_fileno ()
2077 CODE:
2078 RETVAL = s_epipe_fd (&respipe);
2079 OUTPUT:
2080 RETVAL
2081
2082int
1312poll_cb(...) 2083poll_cb (...)
1313 PROTOTYPE: 2084 PROTOTYPE:
1314 CODE: 2085 CODE:
1315 RETVAL = poll_cb (); 2086 RETVAL = poll_cb ();
1316 OUTPUT: 2087 OUTPUT:
1317 RETVAL 2088 RETVAL
1318 2089
1319void 2090void
1320poll_wait() 2091poll_wait ()
1321 PROTOTYPE:
1322 CODE: 2092 CODE:
1323 if (nreqs)
1324 poll_wait (); 2093 poll_wait ();
1325 2094
1326int 2095int
1327nreqs() 2096nreqs ()
1328 PROTOTYPE:
1329 CODE: 2097 CODE:
1330 RETVAL = nreqs; 2098 RETVAL = eio_nreqs ();
1331 OUTPUT: 2099 OUTPUT:
1332 RETVAL 2100 RETVAL
1333 2101
2102int
2103nready ()
2104 CODE:
2105 RETVAL = eio_nready ();
2106 OUTPUT:
2107 RETVAL
2108
2109int
2110npending ()
2111 CODE:
2112 RETVAL = eio_npending ();
2113 OUTPUT:
2114 RETVAL
2115
2116int
2117nthreads ()
2118 CODE:
2119 RETVAL = eio_nthreads ();
2120 OUTPUT:
2121 RETVAL
2122
2123int
2124fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2125 CODE:
2126 RETVAL = posix_fadvise (fh, offset, length, advice);
2127 OUTPUT:
2128 RETVAL
2129
2130IV
2131sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2132 CODE:
2133 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2134 OUTPUT:
2135 RETVAL
2136
2137void
2138mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2139 PPCODE:
2140 sv_clear_foreign (scalar);
2141{
2142 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2143 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2144 if (addr == (void *)-1)
2145 XSRETURN_NO;
2146
2147 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2148
2149 if (!(prot & PROT_WRITE))
2150 SvREADONLY_on (scalar);
2151
2152 XSRETURN_YES;
2153}
2154
2155void
2156munmap (SV *scalar)
2157 CODE:
2158 sv_clear_foreign (scalar);
2159
2160SV *
2161mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2162 CODE:
2163{
2164 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2165 void *new;
2166
2167 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2168 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2169
2170 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2171
2172 RETVAL = &PL_sv_no;
2173
2174 if (new != (void *)-1)
2175 {
2176 RETVAL = new == (void *)mg->mg_ptr
2177 ? newSVpvn ("0 but true", 10)
2178 : &PL_sv_yes;
2179
2180 mg->mg_ptr = (char *)new;
2181 mg->mg_obj = (SV *)new_length;
2182
2183 SvPVX (scalar) = mg->mg_ptr;
2184 SvCUR_set (scalar, new_length);
2185 }
2186}
2187 OUTPUT:
2188 RETVAL
2189
2190int
2191madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2192 ALIAS:
2193 mprotect = 1
2194 CODE:
2195{
2196 STRLEN svlen;
2197 void *addr = SvPVbyte (scalar, svlen);
2198 STRLEN len = SvUV (length);
2199
2200 if (offset < 0)
2201 offset += svlen;
2202
2203 if (offset < 0 || offset > svlen)
2204 croak ("offset outside of scalar");
2205
2206 if (!SvOK (length) || len + offset > svlen)
2207 len = svlen - offset;
2208
2209 addr = (void *)(((intptr_t)addr) + offset);
2210 eio_page_align (&addr, &len);
2211
2212 switch (ix)
2213 {
2214 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2215 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2216 }
2217}
2218 OUTPUT:
2219 RETVAL
2220
2221int
2222munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2223 CODE:
2224{
2225 STRLEN svlen;
2226 void *addr = SvPVbyte (scalar, svlen);
2227 size_t len = SvUV (length);
2228
2229 if (offset < 0)
2230 offset += svlen;
2231
2232 if (offset < 0 || offset > svlen)
2233 croak ("offset outside of scalar");
2234
2235 if (!SvOK (length) || len + offset > svlen)
2236 len = svlen - offset;
2237
2238 addr = (void *)(((intptr_t)addr) + offset);
2239 eio_page_align (&addr, &len);
2240#if _POSIX_MEMLOCK_RANGE
2241 RETVAL = munlock (addr, len);
2242#else
2243 RETVAL = EIO_ENOSYS ();
2244#endif
2245}
2246 OUTPUT:
2247 RETVAL
2248
2249int
2250mlockall (int flags)
2251 PROTOTYPE: $;
2252 CODE:
2253 RETVAL = eio_mlockall_sync (flags);
2254 OUTPUT:
2255 RETVAL
2256
2257int
2258munlockall ()
2259 CODE:
2260#if _POSIX_MEMLOCK
2261 munlockall ();
2262#else
2263 RETVAL = EIO_ENOSYS ();
2264#endif
2265 OUTPUT:
2266 RETVAL
2267
2268int
2269splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2270 CODE:
2271{
2272#if HAVE_LINUX_SPLICE
2273 loff_t off_in_, off_out_;
2274 RETVAL = splice (
2275 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2276 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2277 length, flags
2278 );
2279#else
2280 RETVAL = EIO_ENOSYS ();
2281#endif
2282}
2283 OUTPUT:
2284 RETVAL
2285
2286int
2287tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2288 CODE:
2289#if HAVE_LINUX_SPLICE
2290 RETVAL = tee (rfh, wfh, length, flags);
2291#else
2292 RETVAL = EIO_ENOSYS ();
2293#endif
2294 OUTPUT:
2295 RETVAL
2296
2297int
2298pipesize (aio_rfd rfh, int new_size = -1)
2299 PROTOTYPE: $;$
2300 CODE:
2301#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2302 if (new_size >= 0)
2303 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2304 else
2305 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2306#else
2307 errno = ENOSYS;
2308 RETVAL = -1;
2309#endif
2310 OUTPUT:
2311 RETVAL
2312
2313void
2314pipe2 (int flags = 0)
2315 PROTOTYPE: ;$
2316 PPCODE:
2317{
2318 int fd[2];
2319 int res;
2320
2321 if (flags)
2322#if HAVE_PIPE2
2323 res = pipe2 (fd, flags);
2324#else
2325 res = (errno = ENOSYS, -1);
2326#endif
2327 else
2328 res = pipe (fd);
2329
2330 if (!res)
2331 {
2332 EXTEND (SP, 2);
2333 PUSHs (newmortalFH (fd[0], O_RDONLY));
2334 PUSHs (newmortalFH (fd[1], O_WRONLY));
2335 }
2336}
2337
2338void
2339eventfd (unsigned int initval = 0, int flags = 0)
2340 PPCODE:
2341{
2342 int fd;
2343#if HAVE_EVENTFD
2344 fd = eventfd (initval, flags);
2345#else
2346 fd = (errno = ENOSYS, -1);
2347#endif
2348
2349 XPUSHs (newmortalFH (fd, O_RDWR));
2350}
2351
2352void
2353timerfd_create (int clockid, int flags = 0)
2354 PPCODE:
2355{
2356 int fd;
2357#if HAVE_TIMERFD
2358 fd = timerfd_create (clockid, flags);
2359#else
2360 fd = (errno = ENOSYS, -1);
2361#endif
2362
2363 XPUSHs (newmortalFH (fd, O_RDWR));
2364}
2365
2366void
2367timerfd_settime (SV *fh, int flags, NV interval, NV value)
2368 PPCODE:
2369{
2370 int fd = s_fileno_croak (fh, 0);
2371#if HAVE_TIMERFD
2372 int res;
2373 struct itimerspec its, ots;
2374
2375 ts_set (&its.it_interval, interval);
2376 ts_set (&its.it_value , value);
2377 res = timerfd_settime (fd, flags, &its, &ots);
2378
2379 if (!res)
2380 {
2381 EXTEND (SP, 2);
2382 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2383 PUSHs (newSVnv (ts_get (&ots.it_value)));
2384 }
2385#else
2386 errno = ENOSYS;
2387#endif
2388}
2389
2390void
2391timerfd_gettime (SV *fh)
2392 PPCODE:
2393{
2394 int fd = s_fileno_croak (fh, 0);
2395#if HAVE_TIMERFD
2396 int res;
2397 struct itimerspec ots;
2398 res = timerfd_gettime (fd, &ots);
2399
2400 if (!res)
2401 {
2402 EXTEND (SP, 2);
2403 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2404 PUSHs (newSVnv (ts_get (&ots.it_value)));
2405 }
2406#else
2407 errno = ENOSYS;
2408#endif
2409}
2410
2411UV
2412get_fdlimit ()
2413 CODE:
2414#if HAVE_RLIMITS
2415 struct rlimit rl;
2416 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2417 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2418#endif
2419 XSRETURN_UNDEF;
2420 OUTPUT:
2421 RETVAL
2422
2423void
2424min_fdlimit (UV limit = 0x7fffffffU)
2425 CODE:
2426{
2427#if HAVE_RLIMITS
2428 struct rlimit rl;
2429 rlim_t orig_rlim_max;
2430 UV bit;
2431
2432 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2433 goto fail;
2434
2435 if (rl.rlim_cur == RLIM_INFINITY)
2436 XSRETURN_YES;
2437
2438 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2439
2440 if (rl.rlim_cur < limit)
2441 {
2442 rl.rlim_cur = limit;
2443
2444 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2445 rl.rlim_max = rl.rlim_cur;
2446 }
2447
2448 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2449 XSRETURN_YES;
2450
2451 if (errno == EPERM)
2452 {
2453 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2454 /* our limit overflows a system-wide limit */
2455 /* try an adaptive algorithm, but do not lower the hardlimit */
2456 rl.rlim_max = 0;
2457 for (bit = 0x40000000U; bit; bit >>= 1)
2458 {
2459 rl.rlim_max |= bit;
2460 rl.rlim_cur = rl.rlim_max;
2461
2462 /* nevr decrease the hard limit */
2463 if (rl.rlim_max < orig_rlim_max)
2464 break;
2465
2466 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2467 rl.rlim_max &= ~bit; /* too high, remove bit again */
2468 }
2469
2470 /* now, raise the soft limit to the max permitted */
2471 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2472 {
2473 rl.rlim_cur = rl.rlim_max;
2474 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2475 errno = EPERM;
2476 }
2477 }
2478#endif
2479 fail:
2480 XSRETURN_UNDEF;
2481}
2482
2483void _on_next_submit (SV *cb)
2484 CODE:
2485 SvREFCNT_dec (on_next_submit);
2486 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
2487
1334PROTOTYPES: DISABLE 2488PROTOTYPES: DISABLE
1335 2489
2490MODULE = IO::AIO PACKAGE = IO::AIO::WD
2491
2492BOOT:
2493{
2494 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2495 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2496}
2497
2498void
2499DESTROY (SV *self)
2500 CODE:
2501{
2502 aio_wd wd = SvAIO_WD (self);
2503#if HAVE_AT
2504 {
2505 SV *callback = &PL_sv_undef;
2506 dREQ; /* clobbers next_pri :/ */
2507 next_pri = req->pri; /* restore next_pri */
2508 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2509 req->type = EIO_WD_CLOSE;
2510 req->wd = wd;
2511 REQ_SEND;
2512 }
2513#else
2514 eio_wd_close_sync (wd);
2515#endif
2516}
2517
1336MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2518MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1337 2519
1338void 2520void
1339cancel (aio_req_ornot req) 2521cancel (aio_req_ornot req)
1340 PROTOTYPE:
1341 CODE: 2522 CODE:
1342 req_cancel (req); 2523 eio_cancel (req);
1343 2524
1344void 2525void
1345cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2526cb (aio_req_ornot req, SV *callback = NO_INIT)
1346 CODE: 2527 PPCODE:
2528{
2529 if (GIMME_V != G_VOID)
2530 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2531
2532 if (items > 1)
2533 {
2534 SV *cb_cv = get_cb (callback);
2535
1347 SvREFCNT_dec (req->callback); 2536 SvREFCNT_dec (req->callback);
1348 req->callback = newSVsv (callback); 2537 req->callback = SvREFCNT_inc (cb_cv);
2538 }
2539}
1349 2540
1350MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2541MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1351 2542
1352void 2543void
1353add (aio_req grp, ...) 2544add (aio_req grp, ...)
1354 PPCODE: 2545 PPCODE:
1355{ 2546{
1356 int i; 2547 int i;
1357 aio_req req;
1358 2548
1359 if (grp->fd == 2) 2549 if (grp->int1 == 2)
1360 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2550 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1361 2551
1362 for (i = 1; i < items; ++i ) 2552 for (i = 1; i < items; ++i )
1363 { 2553 {
2554 aio_req req;
2555
1364 if (GIMME_V != G_VOID) 2556 if (GIMME_V != G_VOID)
1365 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2557 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1366 2558
1367 req = SvAIO_REQ (ST (i)); 2559 req = SvAIO_REQ (ST (i));
1368 2560
1369 if (req) 2561 if (req)
1370 { 2562 eio_grp_add (grp, req);
1371 ++grp->length;
1372 req->grp = grp;
1373
1374 req->grp_prev = 0;
1375 req->grp_next = grp->grp_first;
1376
1377 if (grp->grp_first)
1378 grp->grp_first->grp_prev = req;
1379
1380 grp->grp_first = req;
1381 }
1382 } 2563 }
1383} 2564}
2565
2566void
2567cancel_subs (aio_req_ornot req)
2568 CODE:
2569 req_cancel_subs (req);
1384 2570
1385void 2571void
1386result (aio_req grp, ...) 2572result (aio_req grp, ...)
1387 CODE: 2573 CODE:
1388{ 2574{
1389 int i; 2575 int i;
2576 AV *av;
2577
2578 grp->errorno = errno;
2579
1390 AV *av = newAV (); 2580 av = newAV ();
2581 av_extend (av, items - 1);
1391 2582
1392 for (i = 1; i < items; ++i ) 2583 for (i = 1; i < items; ++i )
1393 av_push (av, newSVsv (ST (i))); 2584 av_push (av, newSVsv (ST (i)));
1394 2585
1395 SvREFCNT_dec (grp->data); 2586 SvREFCNT_dec (grp->sv1);
1396 grp->data = (SV *)av; 2587 grp->sv1 = (SV *)av;
1397} 2588}
1398 2589
1399void 2590void
2591errno (aio_req grp, int errorno = errno)
2592 CODE:
2593 grp->errorno = errorno;
2594
2595void
1400feed_limit (aio_req grp, int limit) 2596limit (aio_req grp, int limit)
1401 CODE: 2597 CODE:
1402 grp->fd2 = limit; 2598 eio_grp_limit (grp, limit);
1403 aio_grp_feed (grp);
1404 2599
1405void 2600void
1406feed (aio_req grp, SV *callback=&PL_sv_undef) 2601feed (aio_req grp, SV *callback = &PL_sv_undef)
1407 CODE: 2602 CODE:
1408{ 2603{
1409 SvREFCNT_dec (grp->fh2); 2604 SvREFCNT_dec (grp->sv2);
1410 grp->fh2 = newSVsv (callback); 2605 grp->sv2 = newSVsv (callback);
2606 grp->feed = aio_grp_feed;
1411 2607
1412 if (grp->fd2 <= 0) 2608 if (grp->int2 <= 0)
1413 grp->fd2 = 2; 2609 grp->int2 = 2;
1414 2610
1415 aio_grp_feed (grp); 2611 eio_grp_limit (grp, grp->int2);
1416} 2612}
1417 2613

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