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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.73 by root, Tue Oct 24 21:26:30 2006 UTC vs.
Revision 1.291 by root, Tue Jul 27 07:58:35 2021 UTC

1/* solaris */ 1#include "libeio/xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux
5# define _GNU_SOURCE
6#endif
7
8#define _REENTRANT 1
9 2
10#include <errno.h> 3#include <errno.h>
11 4
12#include "EXTERN.h" 5#include "EXTERN.h"
13#include "perl.h" 6#include "perl.h"
14#include "XSUB.h" 7#include "XSUB.h"
8#include "perliol.h"
15 9
16#include "autoconf/config.h" 10#if !defined mg_findext
17 11# define mg_findext(sv,type,vtbl) mg_find (sv, type)
18#include <pthread.h> 12#endif
19 13
20#include <stddef.h> 14#include <stddef.h>
15#include <stdlib.h>
21#include <errno.h> 16#include <errno.h>
22#include <sys/time.h>
23#include <sys/select.h>
24#include <sys/types.h> 17#include <sys/types.h>
18#include <sys/socket.h>
25#include <sys/stat.h> 19#include <sys/stat.h>
26#include <limits.h> 20#include <limits.h>
27#include <unistd.h>
28#include <fcntl.h> 21#include <fcntl.h>
29#include <signal.h>
30#include <sched.h> 22#include <sched.h>
31 23
32#if HAVE_SENDFILE 24/* the incompetent fool that created musl keeps __linux__, refuses
33# 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>
34# include <sys/sendfile.h> 88 #include <sys/select.h>
35# 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
36# 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
37# include <sys/uio.h> 124# include <sys/uio.h>
38# elif __hpux 125#endif
39# include <sys/socket.h> 126
40# 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
41# 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
42# else 208# else
43# error sendfile support requested but not available 209# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
44# endif 210# endif
45#endif 211#endif
46 212
47/* used for struct dirent, AIX doesn't provide it */ 213#ifndef makedev
48#ifndef NAME_MAX 214# define makedev(maj,min) (((maj) << 8) | (min))
49# define NAME_MAX 4096
50#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
51 222
52#if __ia64 223/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
53# define STACKSIZE 65536 224#ifdef __sun
54#elif __i386 || __x86_64 /* 16k is unreasonably high :( */ 225# undef PAGESIZE
55# define STACKSIZE PTHREAD_STACK_MIN 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>
56#else 239#else
57# define STACKSIZE 16384 240# define syscall(nr,...) (errno = ENOSYS, -1)
58#endif 241#endif
59 242
60/* buffer size for various temporary buffers */ 243/*****************************************************************************/
61#define AIO_BUFSIZE 65536
62 244
63#define dBUF \ 245#if !_POSIX_MAPPED_FILES
64 char *aio_buf; \ 246# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
65 LOCK (wrklock); \ 247# define munmap(addr,length) EIO_ENOSYS ()
66 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 248#endif
67 UNLOCK (wrklock); \ 249
68 if (!aio_buf) \ 250#if !_POSIX_MEMORY_PROTECTION
251# define mprotect(addr,len,prot) EIO_ENOSYS ()
252#endif
253
254#if !MREMAP_MAYMOVE
255# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
256#endif
257
258#define FOREIGN_MAGIC PERL_MAGIC_ext
259
260static int ecb_cold
261mmap_free (pTHX_ SV *sv, MAGIC *mg)
262{
263 int old_errno = errno;
264 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
265 errno = old_errno;
266
267 mg->mg_obj = 0; /* just in case */
268
269 SvREADONLY_off (sv);
270
271 if (SvPVX (sv) != mg->mg_ptr)
272 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
273
274 SvCUR_set (sv, 0);
275 SvPVX (sv) = 0;
276 SvOK_off (sv);
277
69 return -1; 278 return 0;
279}
70 280
71enum { 281static MGVTBL mmap_vtbl = {
72 REQ_QUIT, 282 0, 0, 0, 0, mmap_free
73 REQ_OPEN, REQ_CLOSE,
74 REQ_READ, REQ_WRITE, REQ_READAHEAD,
75 REQ_SENDFILE,
76 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
77 REQ_FSYNC, REQ_FDATASYNC,
78 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
79 REQ_READDIR,
80 REQ_LINK, REQ_SYMLINK,
81 REQ_GROUP, REQ_NOP,
82 REQ_BUSY,
83}; 283};
84 284
85#define AIO_REQ_KLASS "IO::AIO::REQ" 285static int ecb_cold
86#define AIO_GRP_KLASS "IO::AIO::GRP" 286sysfree_free (pTHX_ SV *sv, MAGIC *mg)
87
88typedef struct aio_cb
89{ 287{
90 struct aio_cb *volatile next; 288 free (mg->mg_ptr);
289 mg->mg_obj = 0; /* just in case */
91 290
92 SV *data, *callback; 291 SvREADONLY_off (sv);
93 SV *fh, *fh2;
94 void *dataptr, *data2ptr;
95 Stat_t *statdata;
96 off_t offset;
97 size_t length;
98 ssize_t result;
99 292
100 STRLEN dataoffset; 293 if (SvPVX (sv) != mg->mg_ptr)
101 int type; 294 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
102 int fd, fd2;
103 int errorno;
104 mode_t mode; /* open */
105 295
106 unsigned char flags; 296 SvCUR_set (sv, 0);
107 unsigned char pri; 297 SvPVX (sv) = 0;
298 SvOK_off (sv);
108 299
109 SV *self; /* the perl counterpart of this request, if any */ 300 return 0;
110 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 301}
111} aio_cb;
112 302
113enum { 303static MGVTBL sysfree_vtbl = {
114 FLAG_CANCELLED = 0x01, 304 0, 0, 0, 0, sysfree_free
115}; 305};
116 306
117typedef aio_cb *aio_req; 307/*****************************************************************************/
118typedef aio_cb *aio_req_ornot;
119 308
120enum { 309/* helper: set scalar to foreign ptr with custom free */
121 PRI_MIN = -4, 310ecb_noinline
122 PRI_MAX = 4, 311static void
123 312sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
124 DEFAULT_PRI = 0,
125 PRI_BIAS = -PRI_MIN,
126 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
127};
128
129static int next_pri = DEFAULT_PRI + PRI_BIAS;
130
131static int started, wanted;
132static volatile int nreqs;
133static int max_outstanding = 1<<30;
134static int respipe [2];
135
136#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
137# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
138#else
139# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
140#endif
141
142#define LOCK(mutex) pthread_mutex_lock (&(mutex))
143#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
144
145/* worker threasd management */
146static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
147
148typedef struct worker {
149 /* locked by wrklock */
150 struct worker *prev, *next;
151
152 pthread_t tid;
153
154 /* locked by reslock, reqlock or wrklock */
155 aio_req req; /* currently processed request */
156 void *dbuf;
157 DIR *dirp;
158} worker;
159
160static worker wrk_first = { &wrk_first, &wrk_first, 0 };
161
162static void worker_clear (worker *wrk)
163{ 313{
164 if (wrk->dirp) 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 (;;)
165 { 395 {
166 closedir (wrk->dirp); 396 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
167 wrk->dirp = 0; 397 char scratch[3072];
168 } 398 struct fiemap *incmap = (struct fiemap *)scratch;
169 399
170 if (wrk->dbuf) 400 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
171 { 401 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
172 free (wrk->dbuf); 402 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
173 wrk->dbuf = 0; 403 incmap->fm_flags = fiemap->fm_flags;
174 } 404 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
175}
176 405
177static void worker_free (worker *wrk) 406 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
178{
179 wrk->next->prev = wrk->prev;
180 wrk->prev->next = wrk->next;
181
182 free (wrk);
183}
184
185static pthread_mutex_t reslock = AIO_MUTEX_INIT;
186static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
187static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
188
189/*
190 * a somewhat faster data structure might be nice, but
191 * with 8 priorities this actually needs <20 insns
192 * per shift, the most expensive operation.
193 */
194typedef struct {
195 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
196 int size;
197} reqq;
198
199static reqq req_queue;
200static reqq res_queue;
201
202int reqq_push (reqq *q, aio_req req)
203{
204 int pri = req->pri;
205 req->next = 0;
206
207 if (q->qe[pri])
208 {
209 q->qe[pri]->next = req;
210 q->qe[pri] = req;
211 }
212 else
213 q->qe[pri] = q->qs[pri] = req;
214
215 return q->size++;
216}
217
218aio_req reqq_shift (reqq *q)
219{
220 int pri;
221
222 if (!q->size)
223 return 0; 407 return;
224 408
225 --q->size; 409 if (!incmap->fm_mapped_extents)
410 goto done;
226 411
227 for (pri = NUM_PRI; pri--; ) 412 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
228 { 413 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
229 aio_req req = q->qs[pri]; 414 errno = ENOMEM;
230
231 if (req) 415 if (!fiemap)
416 return;
417
418 req->ptr1 = fiemap;
419
420 for (count = 0; count < incmap->fm_mapped_extents; ++count)
232 { 421 {
233 if (!(q->qs[pri] = req->next)) 422 struct fiemap_extent *e = incmap->fm_extents + count;
234 q->qe[pri] = 0;
235 423
236 return req; 424 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
425
426 if (e->fe_logical >= end_offset)
427 goto done;
428
429 if (e->fe_flags & FIEMAP_EXTENT_LAST)
430 goto done;
431
237 } 432 }
238 } 433 }
239 434
240 abort (); 435done:
241} 436 req->result = 0;
242 437
243static void req_invoke (aio_req req); 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
244static void req_free (aio_req req); 470static void req_destroy (aio_req req);
245static void req_cancel (aio_req req); 471static void req_cancel (aio_req req);
246 472
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
247/* must be called at most once */ 487/* must be called at most once */
248static SV *req_sv (aio_req req, const char *klass) 488ecb_noinline
489static SV *
490req_sv (aio_req req, HV *stash)
249{ 491{
250 if (!req->self) 492 if (!req->self)
251 { 493 {
252 req->self = (SV *)newHV (); 494 req->self = (SV *)newHV ();
253 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 495 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
254 } 496 }
255 497
256 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 498 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
257} 499}
258 500
259static aio_req SvAIO_REQ (SV *sv) 501static SV *
502newSVaio_wd (aio_wd wd)
503{
504 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
505}
506
507ecb_noinline
508static aio_req
509SvAIO_REQ (SV *sv)
260{ 510{
261 MAGIC *mg; 511 MAGIC *mg;
262 512
263 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 513 if (!SvROK (sv)
514 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
515 || (SvSTASH (SvRV (sv)) != aio_grp_stash
516 && SvSTASH (SvRV (sv)) != aio_req_stash
517 && !sv_derived_from (sv, "IO::AIO::REQ")))
264 croak ("object of class " AIO_REQ_KLASS " expected"); 518 croak ("object of class IO::AIO::REQ expected");
265 519
266 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 520 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
267 521
268 return mg ? (aio_req)mg->mg_ptr : 0; 522 return mg ? (aio_req)mg->mg_ptr : 0;
269} 523}
270 524
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
271static void aio_grp_feed (aio_req grp) 562aio_grp_feed (aio_req grp)
272{ 563{
273 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 564 if (grp->sv2 && SvOK (grp->sv2))
274 { 565 {
275 int old_len = grp->length;
276
277 if (grp->fh2 && SvOK (grp->fh2))
278 {
279 dSP; 566 dSP;
280 567
281 ENTER; 568 ENTER;
282 SAVETMPS; 569 SAVETMPS;
283 PUSHMARK (SP); 570 PUSHMARK (SP);
284 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 571 XPUSHs (req_sv (grp, aio_grp_stash));
285 PUTBACK; 572 PUTBACK;
286 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 573 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
287 SPAGAIN; 574 SPAGAIN;
288 FREETMPS; 575 FREETMPS;
289 LEAVE; 576 LEAVE;
290 }
291
292 /* stop if no progress has been made */
293 if (old_len == grp->length)
294 {
295 SvREFCNT_dec (grp->fh2);
296 grp->fh2 = 0;
297 break;
298 }
299 } 577 }
300} 578}
301 579
302static void aio_grp_dec (aio_req grp) 580ecb_noinline
581static void
582req_submit (eio_req *req)
303{ 583{
304 --grp->length; 584 eio_submit (req);
305 585
306 /* call feeder, if applicable */ 586 if (expect_false (on_next_submit))
307 aio_grp_feed (grp);
308
309 /* finish, if done */
310 if (!grp->length && grp->fd)
311 { 587 {
312 req_invoke (grp); 588 dSP;
313 req_free (grp); 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);
314 } 596 }
315} 597}
316 598
317static void poll_wait () 599static int
600req_invoke (eio_req *req)
318{ 601{
319 fd_set rfd; 602 if (req->flags & FLAG_SV2_RO_OFF)
603 SvREADONLY_off (req->sv2);
320 604
321 while (nreqs) 605 if (!EIO_CANCELLED (req) && req->callback)
322 { 606 {
323 int size;
324#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
325 LOCK (reslock);
326#endif
327 size = res_queue.size;
328#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
329 UNLOCK (reslock);
330#endif
331
332 if (size)
333 return;
334
335 FD_ZERO(&rfd);
336 FD_SET(respipe [0], &rfd);
337
338 select (respipe [0] + 1, &rfd, 0, 0, 0);
339 }
340}
341
342static void req_invoke (aio_req req)
343{
344 dSP; 607 dSP;
345 608 static SV *sv_result_cache; /* caches the result integer SV */
346 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 609 SV *sv_result;
347 {
348 errno = req->errorno;
349 610
350 ENTER; 611 ENTER;
351 SAVETMPS; 612 SAVETMPS;
352 PUSHMARK (SP); 613 PUSHMARK (SP);
353 EXTEND (SP, 1); 614 EXTEND (SP, 1);
354 615
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
355 switch (req->type) 629 switch (req->type)
356 { 630 {
631 case EIO_WD_OPEN:
632 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
633 break;
634
357 case REQ_READDIR: 635 case EIO_READDIR:
358 { 636 {
359 SV *rv = &PL_sv_undef; 637 SV *rv = &PL_sv_undef;
360 638
361 if (req->result >= 0) 639 if (req->result >= 0)
362 { 640 {
363 int i; 641 int i;
364 char *buf = req->data2ptr; 642 char *names = (char *)req->ptr2;
643 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
365 AV *av = newAV (); 644 AV *av = newAV ();
366 645
367 av_extend (av, req->result - 1); 646 av_extend (av, req->result - 1);
368 647
369 for (i = 0; i < req->result; ++i) 648 for (i = 0; i < req->result; ++i)
370 { 649 {
371 SV *sv = newSVpv (buf, 0); 650 if (req->int1 & EIO_READDIR_DENTS)
651 {
652 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
372 653
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
373 av_store (av, i, sv); 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);
374 buf += SvCUR (sv) + 1; 682 names += SvCUR (name) + 1;
683 }
375 } 684 }
376 685
377 rv = sv_2mortal (newRV_noinc ((SV *)av)); 686 rv = sv_2mortal (newRV_noinc ((SV *)av));
378 } 687 }
379 688
380 PUSHs (rv); 689 PUSHs (rv);
690
691 if (req->int1 & EIO_READDIR_CUSTOM1)
692 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
381 } 693 }
382 break; 694 break;
383 695
384 case REQ_OPEN: 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:
385 { 702 {
386 /* convert fd to fh */ 703 SV *rv = &PL_sv_undef;
387 SV *fh; 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));
388 715
389 PUSHs (sv_2mortal (newSViv (req->result))); 716 rv = sv_2mortal (newRV_noinc ((SV *)hv));
390 PUTBACK;
391 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
392 SPAGAIN;
393 717
394 fh = SvREFCNT_inc (POPs); 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
395 731
396 PUSHMARK (SP); 732 PUSHs (rv);
397 XPUSHs (sv_2mortal (fh));
398 } 733 }
734
399 break; 735 break;
400 736
401 case REQ_GROUP: 737 case EIO_GROUP:
402 req->fd = 2; /* mark group as finished */ 738 req->int1 = 2; /* mark group as finished */
403 739
404 if (req->data) 740 if (req->sv1)
405 { 741 {
406 int i; 742 int i;
407 AV *av = (AV *)req->data; 743 AV *av = (AV *)req->sv1;
408 744
409 EXTEND (SP, AvFILL (av) + 1); 745 EXTEND (SP, AvFILL (av) + 1);
410 for (i = 0; i <= AvFILL (av); ++i) 746 for (i = 0; i <= AvFILL (av); ++i)
411 PUSHs (*av_fetch (av, i, 0)); 747 PUSHs (*av_fetch (av, i, 0));
412 } 748 }
413 break; 749 break;
414 750
415 case REQ_NOP: 751 case EIO_NOP:
416 case REQ_BUSY: 752 case EIO_BUSY:
417 break; 753 break;
418 754
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
419 default: 862 default:
420 PUSHs (sv_2mortal (newSViv (req->result))); 863 PUSHs (sv_result);
421 break; 864 break;
422 } 865 }
423 866
867 errno = req->errorno;
424 868
425 PUTBACK; 869 PUTBACK;
426 call_sv (req->callback, G_VOID | G_EVAL); 870 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
427 SPAGAIN; 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;
428 877
429 FREETMPS; 878 FREETMPS;
430 LEAVE; 879 LEAVE;
880
881 PUTBACK;
431 } 882 }
432 883
433 if (req->grp) 884 return !!SvTRUE (ERRSV);
434 {
435 aio_req grp = req->grp;
436
437 /* unlink request */
438 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
439 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
440
441 if (grp->grp_first == req)
442 grp->grp_first = req->grp_next;
443
444 aio_grp_dec (grp);
445 }
446
447 if (SvTRUE (ERRSV))
448 {
449 req_free (req);
450 croak (0);
451 }
452} 885}
453 886
454static void req_free (aio_req req) 887static void
888req_destroy (aio_req req)
455{ 889{
456 if (req->self) 890 if (req->self)
457 { 891 {
458 sv_unmagic (req->self, PERL_MAGIC_ext); 892 sv_unmagic (req->self, PERL_MAGIC_ext);
459 SvREFCNT_dec (req->self); 893 SvREFCNT_dec (req->self);
460 } 894 }
461 895
462 SvREFCNT_dec (req->data);
463 SvREFCNT_dec (req->fh); 896 SvREFCNT_dec (req->sv1);
464 SvREFCNT_dec (req->fh2); 897 SvREFCNT_dec (req->sv2);
898 SvREFCNT_dec (req->sv3);
899 SvREFCNT_dec (req->sv4);
465 SvREFCNT_dec (req->callback); 900 SvREFCNT_dec (req->callback);
466 Safefree (req->statdata);
467 901
468 if (req->type == REQ_READDIR)
469 free (req->data2ptr);
470
471 Safefree (req); 902 free (req);
472} 903}
473 904
905static void
474static void req_cancel_subs (aio_req grp) 906req_cancel_subs (aio_req grp)
475{ 907{
476 aio_req sub;
477
478 if (grp->type != REQ_GROUP) 908 if (grp->type != EIO_GROUP)
479 return; 909 return;
480 910
481 SvREFCNT_dec (grp->fh2); 911 SvREFCNT_dec (grp->sv2);
482 grp->fh2 = 0; 912 grp->sv2 = 0;
483 913
484 for (sub = grp->grp_first; sub; sub = sub->grp_next) 914 eio_grp_cancel (grp);
485 req_cancel (sub);
486} 915}
487 916
488static void req_cancel (aio_req req) 917ecb_cold
918static void
919create_respipe (void)
489{ 920{
490 req->flags |= FLAG_CANCELLED; 921 if (s_epipe_renew (&respipe))
491 922 croak ("IO::AIO: unable to initialize result pipe");
492 req_cancel_subs (req);
493} 923}
494 924
495static int poll_cb () 925static void
926poll_wait (void)
496{ 927{
497 dSP; 928 while (eio_nreqs ())
498 int count = 0; 929 {
499 int do_croak = 0; 930 int size;
500 aio_req req;
501 931
932 X_LOCK (EIO_POOL->reslock);
933 size = EIO_POOL->res_queue.size;
934 X_UNLOCK (EIO_POOL->reslock);
935
936 if (size)
937 return;
938
939 etp_maybe_start_thread (EIO_POOL);
940
941 s_epipe_wait (&respipe);
942 }
943}
944
945static int
946poll_cb (void)
947{
502 for (;;) 948 for (;;)
503 { 949 {
504 LOCK (reslock); 950 int res = eio_poll ();
505 req = reqq_shift (&res_queue);
506 951
507 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)
508 { 1024 {
509 if (!res_queue.size) 1025 path = AvARRAY (rv)[1];
1026 wdob = AvARRAY (rv)[0];
1027
1028 if (SvOK (wdob))
510 { 1029 {
511 /* read any signals sent by the worker threads */ 1030 *wd = SvAIO_WD (wdob);
512 char buf [32]; 1031 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
513 while (read (respipe [0], buf, 32) == 32)
514 ;
515 } 1032 }
1033 else
1034 *wd = EIO_INVALID_WD;
516 } 1035 }
517 1036 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
518 UNLOCK (reslock);
519
520 if (!req)
521 break;
522
523 --nreqs;
524
525 if (req->type == REQ_QUIT)
526 started--;
527 else if (req->type == REQ_GROUP && req->length)
528 { 1037 {
529 req->fd = 1; /* mark request as delayed */ 1038 *wd = (aio_wd)(long)SvIVX (rv);
530 continue; 1039 *wdsv = SvREFCNT_inc_NN (rv);
1040 *ptr = ".";
1041 return; /* path set to "." */
531 } 1042 }
532 else 1043 else
533 { 1044 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
534 if (req->type == REQ_READ)
535 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
536
537 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
538 SvREADONLY_off (req->data);
539
540 if (req->statdata)
541 {
542 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
543 PL_laststatval = req->result;
544 PL_statcache = *(req->statdata);
545 }
546
547 req_invoke (req);
548
549 count++;
550 }
551
552 req_free (req);
553 } 1045 }
554 1046
555 return count; 1047 *pathsv = newSVsv (path);
1048 *ptr = SvPVbyte_nolen (*pathsv);
556} 1049}
557 1050
558static void *aio_proc(void *arg); 1051ecb_noinline
559 1052static void
560static void start_thread (void) 1053req_set_path1 (aio_req req, SV *path)
561{ 1054{
562 sigset_t fullsigset, oldsigset; 1055 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
563 pthread_attr_t attr; 1056}
564 1057
565 worker *wrk = calloc (1, sizeof (worker)); 1058ecb_noinline
1059static void
1060req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1061{
1062 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
566 1063
567 if (!wrk) 1064 switch (SvTYPE (rv))
568 croak ("unable to allocate worker thread data");
569
570 pthread_attr_init (&attr);
571 pthread_attr_setstacksize (&attr, STACKSIZE);
572 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
573
574 sigfillset (&fullsigset);
575
576 LOCK (wrklock);
577 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
578
579 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
580 { 1065 {
581 wrk->prev = &wrk_first; 1066 case SVt_PVIO:
582 wrk->next = wrk_first.next; 1067 case SVt_PVLV:
583 wrk_first.next->prev = wrk; 1068 case SVt_PVGV:
584 wrk_first.next = wrk; 1069 req->type = type_fh;
585 started++; 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;
586 } 1078 }
587 else
588 free (wrk);
589
590 sigprocmask (SIG_SETMASK, &oldsigset, 0);
591 UNLOCK (wrklock);
592}
593
594static void req_send (aio_req req)
595{
596 while (started < wanted && nreqs >= started)
597 start_thread ();
598
599 ++nreqs;
600
601 LOCK (reqlock);
602 reqq_push (&req_queue, req);
603 pthread_cond_signal (&reqwait);
604 UNLOCK (reqlock);
605
606 if (nreqs > max_outstanding)
607 for (;;)
608 {
609 poll_cb ();
610
611 if (nreqs <= max_outstanding)
612 break;
613
614 poll_wait ();
615 }
616}
617
618static void end_thread (void)
619{
620 aio_req req;
621
622 Newz (0, req, 1, aio_cb);
623
624 req->type = REQ_QUIT;
625 req->pri = PRI_MAX + PRI_BIAS;
626
627 req_send (req);
628}
629
630static void min_parallel (int nthreads)
631{
632 if (wanted < nthreads)
633 wanted = nthreads;
634}
635
636static void max_parallel (int nthreads)
637{
638 int cur = started;
639
640 if (wanted > nthreads)
641 wanted = nthreads;
642
643 while (cur > wanted)
644 {
645 end_thread ();
646 cur--;
647 }
648
649 while (started > wanted)
650 {
651 poll_wait ();
652 poll_cb ();
653 }
654}
655
656static void create_pipe ()
657{
658 if (pipe (respipe))
659 croak ("unable to initialize result pipe");
660
661 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
662 croak ("cannot set result pipe to nonblocking mode");
663
664 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
665 croak ("cannot set result pipe to nonblocking mode");
666} 1079}
667 1080
668/*****************************************************************************/ 1081/*****************************************************************************/
669/* work around various missing functions */
670 1082
671#if !HAVE_PREADWRITE 1083static void
672# define pread aio_pread 1084ts_set (struct timespec *ts, NV value)
673# define pwrite aio_pwrite
674
675/*
676 * make our pread/pwrite safe against themselves, but not against
677 * normal read/write by using a mutex. slows down execution a lot,
678 * but that's your problem, not mine.
679 */
680static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
681
682static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
683{ 1085{
684 ssize_t res; 1086 ts->tv_sec = value;
685 off_t ooffset; 1087 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
686
687 LOCK (preadwritelock);
688 ooffset = lseek (fd, 0, SEEK_CUR);
689 lseek (fd, offset, SEEK_SET);
690 res = read (fd, buf, count);
691 lseek (fd, ooffset, SEEK_SET);
692 UNLOCK (preadwritelock);
693
694 return res;
695} 1088}
696 1089
697static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1090static NV
1091ts_get (const struct timespec *ts)
698{ 1092{
699 ssize_t res; 1093 return ts->tv_sec + ts->tv_nsec * 1e-9;
700 off_t ooffset;
701
702 LOCK (preadwritelock);
703 ooffset = lseek (fd, 0, SEEK_CUR);
704 lseek (fd, offset, SEEK_SET);
705 res = write (fd, buf, count);
706 lseek (fd, offset, SEEK_SET);
707 UNLOCK (preadwritelock);
708
709 return res;
710} 1094}
711#endif
712 1095
713#if !HAVE_FDATASYNC 1096/*****************************************************************************/
714# define fdatasync fsync
715#endif
716 1097
717#if !HAVE_READAHEAD 1098XS(boot_IO__AIO) ecb_cold;
718# define readahead aio_readahead
719 1099
720static ssize_t readahead (int fd, off_t offset, size_t count) 1100MODULE = IO::AIO PACKAGE = IO::AIO
721{
722 dBUF;
723 1101
724 while (count > 0) 1102PROTOTYPES: ENABLE
725 {
726 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
727 1103
728 pread (fd, aio_buf, len, offset); 1104BOOT:
729 offset += len;
730 count -= len;
731 }
732
733 errno = 0;
734}
735#endif
736
737#if !HAVE_READDIR_R
738# define readdir_r aio_readdir_r
739
740static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
741
742static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
743{ 1105{
744 struct dirent *e; 1106 static const struct {
745 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 },
746 1113
747 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)
748 1119
749 e = readdir (dirp); 1120 /* for lseek */
750 errorno = errno; 1121 const_iv (SEEK_DATA)
1122 const_iv (SEEK_HOLE)
751 1123
752 if (e) 1124 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
753 { 1125 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
754 *res = ent; 1126 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
755 strcpy (ent->d_name, e->d_name); 1127 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
756 } 1128 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
757 else 1129 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
758 *res = 0;
759 1130
760 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)
761 1136
762 errno = errorno; 1137 /* the second block will be 0 when missing */
763 return e ? 0 : -1; 1138 const_iv (O_ACCMODE)
764}
765#endif
766 1139
767/* sendfile always needs emulation */ 1140 const_iv (O_RDONLY)
768static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) 1141 const_iv (O_WRONLY)
769{ 1142 const_iv (O_RDWR)
770 ssize_t res; 1143 const_iv (O_CREAT)
1144 const_iv (O_TRUNC)
1145 const_iv (O_EXCL)
1146 const_iv (O_APPEND)
771 1147
772 if (!count) 1148 const_iv (O_ASYNC)
773 return 0; 1149 const_iv (O_DIRECT)
1150 const_iv (O_NOATIME)
774 1151
775#if HAVE_SENDFILE 1152 const_iv (O_CLOEXEC)
776# if __linux 1153 const_iv (O_NOCTTY)
777 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)
778 1165
779# elif __freebsd 1166 const_iv (S_IFIFO)
780 /* 1167 const_iv (S_IFCHR)
781 * Of course, the freebsd sendfile is a dire hack with no thoughts 1168 const_iv (S_IFBLK)
782 * wasted on making it similar to other I/O functions. 1169 const_iv (S_IFLNK)
783 */ 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
1317 const_iv (CLOCK_REALTIME)
1318 const_iv (CLOCK_MONOTONIC)
1319 const_iv (CLOCK_BOOTTIME)
1320 const_iv (CLOCK_REALTIME_ALARM)
1321 const_iv (CLOCK_BOOTTIME_ALARM)
1322
1323 const_iv (TFD_NONBLOCK)
1324 const_iv (TFD_CLOEXEC)
1325
1326 const_iv (TFD_TIMER_ABSTIME)
1327 const_iv (TFD_TIMER_CANCEL_ON_SET)
1328
1329 const_iv (STATX_TYPE)
1330 const_iv (STATX_MODE)
1331 const_iv (STATX_NLINK)
1332 const_iv (STATX_UID)
1333 const_iv (STATX_GID)
1334 const_iv (STATX_ATIME)
1335 const_iv (STATX_MTIME)
1336 const_iv (STATX_CTIME)
1337 const_iv (STATX_INO)
1338 const_iv (STATX_SIZE)
1339 const_iv (STATX_BLOCKS)
1340 const_iv (STATX_BASIC_STATS)
1341 const_iv (STATX_ALL)
1342 const_iv (STATX_BTIME)
1343 const_iv (STATX_ATTR_COMPRESSED)
1344 const_iv (STATX_ATTR_IMMUTABLE)
1345 const_iv (STATX_ATTR_APPEND)
1346 const_iv (STATX_ATTR_NODUMP)
1347 const_iv (STATX_ATTR_ENCRYPTED)
1348 const_iv (STATX_ATTR_AUTOMOUNT)
1349
1350 const_iv (AT_FDCWD)
1351 const_iv (AT_SYMLINK_NOFOLLOW)
1352 const_iv (AT_EACCESS)
1353 const_iv (AT_REMOVEDIR)
1354 const_iv (AT_SYMLINK_FOLLOW)
1355 const_iv (AT_NO_AUTOMOUNT)
1356 const_iv (AT_EMPTY_PATH)
1357 const_iv (AT_STATX_SYNC_TYPE)
1358 const_iv (AT_STATX_AS_STAT)
1359 const_iv (AT_STATX_FORCE_SYNC)
1360 const_iv (AT_STATX_DONT_SYNC)
1361 const_iv (AT_RECURSIVE)
1362
1363 const_iv (OPEN_TREE_CLONE)
1364
1365 const_iv (FSOPEN_CLOEXEC)
1366
1367 const_iv (FSPICK_CLOEXEC)
1368 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1369 const_iv (FSPICK_NO_AUTOMOUNT)
1370 const_iv (FSPICK_EMPTY_PATH)
1371
1372 const_iv (MOVE_MOUNT_F_SYMLINKS)
1373 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1374 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1375 const_iv (MOVE_MOUNT_T_SYMLINKS)
1376 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1377 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1378
1379 /* waitid */
1380 const_iv (P_PID)
1381 const_iv (P_PIDFD)
1382 const_iv (P_PGID)
1383 const_iv (P_ALL)
1384
1385 const_iv (FSCONFIG_SET_FLAG)
1386 const_iv (FSCONFIG_SET_STRING)
1387 const_iv (FSCONFIG_SET_BINARY)
1388 const_iv (FSCONFIG_SET_PATH)
1389 const_iv (FSCONFIG_SET_PATH_EMPTY)
1390 const_iv (FSCONFIG_SET_FD)
1391 const_iv (FSCONFIG_CMD_CREATE)
1392 const_iv (FSCONFIG_CMD_RECONFIGURE)
1393
1394 const_iv (MOUNT_ATTR_RDONLY)
1395 const_iv (MOUNT_ATTR_NOSUID)
1396 const_iv (MOUNT_ATTR_NODEV)
1397 const_iv (MOUNT_ATTR_NOEXEC)
1398 const_iv (MOUNT_ATTR__ATIME)
1399 const_iv (MOUNT_ATTR_RELATIME)
1400 const_iv (MOUNT_ATTR_NOATIME)
1401 const_iv (MOUNT_ATTR_STRICTATIME)
1402 const_iv (MOUNT_ATTR_NODIRATIME)
1403
1404 /* these are libeio constants, and are independent of gendef0 */
1405 const_eio (SEEK_SET)
1406 const_eio (SEEK_CUR)
1407 const_eio (SEEK_END)
1408
1409 const_eio (MCL_FUTURE)
1410 const_eio (MCL_CURRENT)
1411 const_eio (MCL_ONFAULT)
1412
1413 const_eio (MS_ASYNC)
1414 const_eio (MS_INVALIDATE)
1415 const_eio (MS_SYNC)
1416
1417 const_eio (MT_MODIFY)
1418
1419 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1420 const_eio (SYNC_FILE_RANGE_WRITE)
1421 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1422
1423 const_eio (FALLOC_FL_KEEP_SIZE)
1424 const_eio (FALLOC_FL_PUNCH_HOLE)
1425 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1426 const_eio (FALLOC_FL_ZERO_RANGE)
1427 const_eio (FALLOC_FL_INSERT_RANGE)
1428 const_eio (FALLOC_FL_UNSHARE_RANGE)
1429
1430 const_eio (RENAME_NOREPLACE)
1431 const_eio (RENAME_EXCHANGE)
1432 const_eio (RENAME_WHITEOUT)
1433
1434 const_eio (READDIR_DENTS)
1435 const_eio (READDIR_DIRS_FIRST)
1436 const_eio (READDIR_STAT_ORDER)
1437 const_eio (READDIR_FOUND_UNKNOWN)
1438
1439 const_eio (DT_UNKNOWN)
1440 const_eio (DT_FIFO)
1441 const_eio (DT_CHR)
1442 const_eio (DT_DIR)
1443 const_eio (DT_BLK)
1444 const_eio (DT_REG)
1445 const_eio (DT_LNK)
1446 const_eio (DT_SOCK)
1447 const_eio (DT_WHT)
1448 };
1449
1450 aio_stash = gv_stashpv ("IO::AIO" , 1);
1451 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1452 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1453 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1454
1455 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1456 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1457
1458 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1459
1460 /* allocate dummy pipe fd for aio_close */
784 { 1461 {
785 off_t sbytes; 1462 int pipefd [2];
786 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
787 1463
788 if (res < 0 && sbytes) 1464 if (
789 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ 1465#ifdef _WIN32
790 res = sbytes; 1466 _pipe (pipefd, 1, _O_BINARY) < 0
1467#else
1468 pipe (pipefd) < 0
1469 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1470#endif
1471 || close (pipefd [1]) < 0
1472 )
1473 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1474
1475 close_fd = pipefd [0];
791 } 1476 }
792 1477
793# elif __hpux 1478 reinit ();
794 res = sendfile (ofd, ifd, offset, count, 0, 0); 1479}
795 1480
796# elif __solaris 1481void
1482reinit ()
1483 PROTOTYPE:
1484
1485void
1486max_poll_reqs (unsigned int nreqs)
1487 PROTOTYPE: $
1488 CODE:
1489 eio_set_max_poll_reqs (nreqs);
1490
1491void
1492max_poll_time (double nseconds)
1493 PROTOTYPE: $
1494 CODE:
1495 eio_set_max_poll_time (nseconds);
1496
1497void
1498min_parallel (unsigned int nthreads)
1499 PROTOTYPE: $
1500 CODE:
1501 eio_set_min_parallel (nthreads);
1502
1503void
1504max_parallel (unsigned int nthreads)
1505 PROTOTYPE: $
1506 CODE:
1507 eio_set_max_parallel (nthreads);
1508
1509void
1510max_idle (unsigned int nthreads)
1511 PROTOTYPE: $
1512 CODE:
1513 eio_set_max_idle (nthreads);
1514
1515void
1516idle_timeout (unsigned int seconds)
1517 PROTOTYPE: $
1518 CODE:
1519 eio_set_idle_timeout (seconds);
1520
1521void
1522max_outstanding (unsigned int maxreqs)
1523 PROTOTYPE: $
1524 CODE:
1525 max_outstanding = maxreqs;
1526
1527void
1528aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1529 PPCODE:
1530{
1531 dREQ;
1532
1533 req->type = EIO_WD_OPEN;
1534 req_set_path1 (req, pathname);
1535
1536 REQ_SEND;
1537}
1538
1539void
1540aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1541 PPCODE:
1542{
1543 dREQ;
1544
1545 req->type = EIO_OPEN;
1546 req_set_path1 (req, pathname);
1547 req->int1 = flags;
1548 req->int2 = mode;
1549
1550 REQ_SEND;
1551}
1552
1553void
1554aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1555 ALIAS:
1556 aio_fsync = EIO_FSYNC
1557 aio_fdatasync = EIO_FDATASYNC
1558 aio_syncfs = EIO_SYNCFS
1559 PPCODE:
1560{
1561 int fd = s_fileno_croak (fh, 0);
1562 dREQ;
1563
1564 req->type = ix;
1565 req->sv1 = newSVsv (fh);
1566 req->int1 = fd;
1567
1568 REQ_SEND;
1569}
1570
1571void
1572aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1573 PPCODE:
1574{
1575 int fd = s_fileno_croak (fh, 0);
1576 dREQ;
1577
1578 req->type = EIO_SYNC_FILE_RANGE;
1579 req->sv1 = newSVsv (fh);
1580 req->int1 = fd;
1581 req->offs = offset;
1582 req->size = nbytes;
1583 req->int2 = flags;
1584
1585 REQ_SEND;
1586}
1587
1588void
1589aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1590 PPCODE:
1591{
1592 int fd = s_fileno_croak (fh, 0);
1593 dREQ;
1594
1595 req->type = EIO_FALLOCATE;
1596 req->sv1 = newSVsv (fh);
1597 req->int1 = fd;
1598 req->int2 = mode;
1599 req->offs = offset;
1600 req->size = len;
1601
1602 REQ_SEND;
1603}
1604
1605void
1606aio_close (SV *fh, SV *callback = &PL_sv_undef)
1607 PPCODE:
1608{
1609 int fd = s_fileno_croak (fh, 0);
1610 dREQ;
1611#if 0
1612 /* partially duplicate logic in s_fileno */
1613 SvGETMAGIC (fh);
1614
1615 if (SvROK (fh))
797 { 1616 {
798 struct sendfilevec vec; 1617 fh = SvRV (fh);
799 size_t sbytes; 1618 SvGETMAGIC (fh);
800
801 vec.sfv_fd = ifd;
802 vec.sfv_flag = 0;
803 vec.sfv_off = offset;
804 vec.sfv_len = count;
805
806 res = sendfilev (ofd, &vec, 1, &sbytes);
807
808 if (res < 0 && sbytes)
809 res = sbytes;
810 } 1619 }
811 1620
812# endif 1621 if (SvTYPE (fh) == SVt_PVGV)
813#else
814 res = -1;
815 errno = ENOSYS;
816#endif
817
818 if (res < 0
819 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
820#if __solaris
821 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
822#endif
823 )
824 )
825 {
826 /* emulate sendfile. this is a major pain in the ass */
827 dBUF;
828
829 res = 0;
830
831 while (count)
832 {
833 ssize_t cnt;
834
835 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
836
837 if (cnt <= 0)
838 {
839 if (cnt && !res) res = -1;
840 break;
841 }
842
843 cnt = write (ofd, aio_buf, cnt);
844
845 if (cnt <= 0)
846 {
847 if (cnt && !res) res = -1;
848 break;
849 }
850
851 offset += cnt;
852 res += cnt;
853 count -= cnt;
854 }
855 }
856
857 return res;
858}
859
860/* read a full directory */
861static void scandir_ (aio_req req, worker *self)
862{
863 DIR *dirp;
864 union
865 {
866 struct dirent d;
867 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
868 } *u;
869 struct dirent *entp;
870 char *name, *names;
871 int memlen = 4096;
872 int memofs = 0;
873 int res = 0;
874 int errorno;
875
876 LOCK (wrklock);
877 self->dirp = dirp = opendir (req->dataptr);
878 self->dbuf = u = malloc (sizeof (*u));
879 UNLOCK (wrklock);
880
881 req->data2ptr = names = malloc (memlen);
882
883 if (dirp && u && names)
884 for (;;)
885 {
886 errno = 0;
887 readdir_r (dirp, &u->d, &entp);
888
889 if (!entp)
890 break;
891
892 name = entp->d_name;
893
894 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
895 { 1622 {
896 int len = strlen (name) + 1; 1623 /* perl filehandle */
1624 PerlIOUnix_refcnt_inc (fd);
1625 do_close ((GV *)fh, 1);
897 1626
898 res++; 1627 req->type = EIO_CLOSE;
899 1628 req->int1 = fd;
900 while (memofs + len > memlen) 1629 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
901 {
902 memlen *= 2;
903 LOCK (wrklock);
904 req->data2ptr = names = realloc (names, memlen);
905 UNLOCK (wrklock);
906
907 if (!names)
908 break;
909 }
910
911 memcpy (names + memofs, name, len);
912 memofs += len;
913 } 1630 }
914 }
915
916 if (errno)
917 res = -1;
918
919 req->result = res;
920}
921
922/*****************************************************************************/
923
924static void *aio_proc (void *thr_arg)
925{
926 aio_req req;
927 int type;
928 worker *self = (worker *)thr_arg;
929
930 do
931 {
932 LOCK (reqlock);
933
934 for (;;)
935 { 1631 else
936 self->req = req = reqq_shift (&req_queue); 1632#endif
937
938 if (req)
939 break;
940
941 pthread_cond_wait (&reqwait, &reqlock);
942 }
943
944 UNLOCK (reqlock);
945
946 errno = 0; /* strictly unnecessary */
947 type = req->type; /* remember type for QUIT check */
948
949 if (!(req->flags & FLAG_CANCELLED))
950 switch (type)
951 { 1633 {
952 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 1634 /* fd number */
953 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 1635 req->type = EIO_DUP2;
954 1636 req->int1 = close_fd;
955 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 1637 req->sv2 = newSVsv (fh);
956 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break; 1638 req->int2 = fd;
957
958 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
959 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
960 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
961
962 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
963 case REQ_CLOSE: req->result = close (req->fd); break;
964 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
965 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
966 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
967 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
968 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
969
970 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
971 case REQ_FSYNC: req->result = fsync (req->fd); break;
972 case REQ_READDIR: scandir_ (req, self); break;
973
974 case REQ_BUSY:
975 {
976 struct timeval tv;
977
978 tv.tv_sec = req->fd;
979 tv.tv_usec = req->fd2;
980
981 req->result = select (0, 0, 0, 0, &tv);
982 }
983
984 case REQ_GROUP:
985 case REQ_NOP:
986 case REQ_QUIT:
987 break;
988
989 default:
990 req->result = ENOSYS;
991 break;
992 } 1639 }
993 1640
994 req->errorno = errno; 1641 REQ_SEND;
995
996 LOCK (reslock);
997
998 if (!reqq_push (&res_queue, req))
999 /* write a dummy byte to the pipe so fh becomes ready */
1000 write (respipe [1], &respipe, 1);
1001
1002 self->req = 0;
1003 worker_clear (self);
1004
1005 UNLOCK (reslock);
1006 }
1007 while (type != REQ_QUIT);
1008
1009 LOCK (wrklock);
1010 worker_free (self);
1011 UNLOCK (wrklock);
1012
1013 return 0;
1014} 1642}
1015 1643
1016/*****************************************************************************/
1017
1018static void atfork_prepare (void)
1019{
1020 LOCK (wrklock);
1021 LOCK (reqlock);
1022 LOCK (reslock);
1023#if !HAVE_PREADWRITE
1024 LOCK (preadwritelock);
1025#endif
1026#if !HAVE_READDIR_R
1027 LOCK (readdirlock);
1028#endif
1029}
1030
1031static void atfork_parent (void)
1032{
1033#if !HAVE_READDIR_R
1034 UNLOCK (readdirlock);
1035#endif
1036#if !HAVE_PREADWRITE
1037 UNLOCK (preadwritelock);
1038#endif
1039 UNLOCK (reslock);
1040 UNLOCK (reqlock);
1041 UNLOCK (wrklock);
1042}
1043
1044static void atfork_child (void)
1045{
1046 aio_req prv;
1047
1048 while (prv = reqq_shift (&req_queue))
1049 req_free (prv);
1050
1051 while (prv = reqq_shift (&res_queue))
1052 req_free (prv);
1053
1054 while (wrk_first.next != &wrk_first)
1055 {
1056 worker *wrk = wrk_first.next;
1057
1058 if (wrk->req)
1059 req_free (wrk->req);
1060
1061 worker_clear (wrk);
1062 worker_free (wrk);
1063 }
1064
1065 started = 0;
1066 nreqs = 0;
1067
1068 close (respipe [0]);
1069 close (respipe [1]);
1070 create_pipe ();
1071
1072 atfork_parent ();
1073}
1074
1075#define dREQ \
1076 aio_req req; \
1077 int req_pri = next_pri; \
1078 next_pri = DEFAULT_PRI + PRI_BIAS; \
1079 \
1080 if (SvOK (callback) && !SvROK (callback)) \
1081 croak ("callback must be undef or of reference type"); \
1082 \
1083 Newz (0, req, 1, aio_cb); \
1084 if (!req) \
1085 croak ("out of memory during aio_req allocation"); \
1086 \
1087 req->callback = newSVsv (callback); \
1088 req->pri = req_pri
1089
1090#define REQ_SEND \
1091 req_send (req); \
1092 \
1093 if (GIMME_V != G_VOID) \
1094 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1095
1096MODULE = IO::AIO PACKAGE = IO::AIO
1097
1098PROTOTYPES: ENABLE
1099
1100BOOT:
1101{
1102 HV *stash = gv_stashpv ("IO::AIO", 1);
1103 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1104 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1105 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1106
1107 create_pipe ();
1108 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1109}
1110
1111void 1644void
1112min_parallel (nthreads) 1645aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1113 int nthreads
1114 PROTOTYPE: $
1115
1116void
1117max_parallel (nthreads)
1118 int nthreads
1119 PROTOTYPE: $
1120
1121int
1122max_outstanding (nreqs)
1123 int nreqs
1124 PROTOTYPE: $
1125 CODE: 1646 PPCODE:
1126 RETVAL = max_outstanding;
1127 max_outstanding = nreqs;
1128
1129void
1130aio_open (pathname,flags,mode,callback=&PL_sv_undef)
1131 SV * pathname
1132 int flags
1133 int mode
1134 SV * callback
1135 PROTOTYPE: $$$;$
1136 PPCODE:
1137{ 1647{
1648 int fd = s_fileno_croak (fh, 0);
1138 dREQ; 1649 dREQ;
1139 1650
1140 req->type = REQ_OPEN; 1651 req->type = EIO_SEEK;
1141 req->data = newSVsv (pathname); 1652 req->sv1 = newSVsv (fh);
1142 req->dataptr = SvPVbyte_nolen (req->data); 1653 req->int1 = fd;
1143 req->fd = flags; 1654 req->offs = SvVAL64 (offset);
1144 req->mode = mode; 1655 req->int2 = whence;
1145 1656
1146 REQ_SEND; 1657 REQ_SEND;
1147} 1658}
1148 1659
1149void 1660void
1150aio_close (fh,callback=&PL_sv_undef) 1661aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1151 SV * fh
1152 SV * callback
1153 PROTOTYPE: $;$
1154 ALIAS: 1662 ALIAS:
1155 aio_close = REQ_CLOSE
1156 aio_fsync = REQ_FSYNC
1157 aio_fdatasync = REQ_FDATASYNC
1158 PPCODE:
1159{
1160 dREQ;
1161
1162 req->type = ix;
1163 req->fh = newSVsv (fh);
1164 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1165
1166 REQ_SEND (req);
1167}
1168
1169void
1170aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1171 SV * fh
1172 UV offset
1173 UV length
1174 SV * data
1175 UV dataoffset
1176 SV * callback
1177 ALIAS:
1178 aio_read = REQ_READ 1663 aio_read = EIO_READ
1179 aio_write = REQ_WRITE 1664 aio_write = EIO_WRITE
1180 PROTOTYPE: $$$$$;$
1181 PPCODE: 1665 PPCODE:
1182{ 1666{
1183 aio_req req;
1184 STRLEN svlen; 1667 STRLEN svlen;
1668 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1185 char *svptr = SvPVbyte (data, svlen); 1669 char *svptr = SvPVbyte (data, svlen);
1186 1670 UV len = SvUV (length);
1187 SvUPGRADE (data, SVt_PV);
1188 SvPOK_on (data);
1189 1671
1190 if (dataoffset < 0) 1672 if (dataoffset < 0)
1191 dataoffset += svlen; 1673 dataoffset += svlen;
1192 1674
1193 if (dataoffset < 0 || dataoffset > svlen) 1675 if (dataoffset < 0 || dataoffset > svlen)
1194 croak ("data offset outside of string"); 1676 croak ("dataoffset outside of data scalar");
1195 1677
1196 if (ix == REQ_WRITE) 1678 if (ix == EIO_WRITE)
1197 { 1679 {
1198 /* write: check length and adjust. */ 1680 /* write: check length and adjust. */
1199 if (length < 0 || length + dataoffset > svlen) 1681 if (!SvOK (length) || len + dataoffset > svlen)
1200 length = svlen - dataoffset; 1682 len = svlen - dataoffset;
1201 } 1683 }
1202 else 1684 else
1203 { 1685 {
1204 /* read: grow scalar as necessary */ 1686 /* read: check type and grow scalar as necessary */
1687 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1205 svptr = SvGROW (data, length + dataoffset); 1688 svptr = sv_grow (data, len + dataoffset + 1);
1689 else if (SvCUR (data) < len + dataoffset)
1690 croak ("length + dataoffset outside of scalar, and cannot grow");
1206 } 1691 }
1207
1208 if (length < 0)
1209 croak ("length must not be negative");
1210 1692
1211 { 1693 {
1212 dREQ; 1694 dREQ;
1213 1695
1214 req->type = ix; 1696 req->type = ix;
1215 req->fh = newSVsv (fh); 1697 req->sv1 = newSVsv (fh);
1216 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1698 req->int1 = fd;
1217 : IoOFP (sv_2io (fh))); 1699 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1218 req->offset = offset; 1700 req->size = len;
1219 req->length = length;
1220 req->data = SvREFCNT_inc (data); 1701 req->sv2 = SvREFCNT_inc (data);
1221 req->dataptr = (char *)svptr + dataoffset; 1702 req->ptr2 = (char *)svptr + dataoffset;
1703 req->stroffset = dataoffset;
1222 1704
1223 if (!SvREADONLY (data)) 1705 if (!SvREADONLY (data))
1224 { 1706 {
1225 SvREADONLY_on (data); 1707 SvREADONLY_on (data);
1226 req->data2ptr = (void *)data; 1708 req->flags |= FLAG_SV2_RO_OFF;
1227 } 1709 }
1228 1710
1229 REQ_SEND; 1711 REQ_SEND;
1230 } 1712 }
1231} 1713}
1232 1714
1233void 1715void
1234aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1716aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1235 SV * out_fh 1717 ALIAS:
1236 SV * in_fh 1718 aio_ioctl = EIO_IOCTL
1237 UV in_offset 1719 aio_fcntl = EIO_FCNTL
1238 UV length
1239 SV * callback
1240 PROTOTYPE: $$$$;$
1241 PPCODE: 1720 PPCODE:
1242{ 1721{
1243 dREQ; 1722 int fd = s_fileno_croak (fh, 0);
1723 char *svptr;
1244 1724
1245 req->type = REQ_SENDFILE; 1725 if (SvPOK (arg) || !SvNIOK (arg))
1246 req->fh = newSVsv (out_fh);
1247 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1248 req->fh2 = newSVsv (in_fh);
1249 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1250 req->offset = in_offset;
1251 req->length = length;
1252
1253 REQ_SEND;
1254}
1255
1256void
1257aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1258 SV * fh
1259 UV offset
1260 IV length
1261 SV * callback
1262 PROTOTYPE: $$$;$
1263 PPCODE:
1264{
1265 dREQ;
1266
1267 req->type = REQ_READAHEAD;
1268 req->fh = newSVsv (fh);
1269 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1270 req->offset = offset;
1271 req->length = length;
1272
1273 REQ_SEND;
1274}
1275
1276void
1277aio_stat (fh_or_path,callback=&PL_sv_undef)
1278 SV * fh_or_path
1279 SV * callback
1280 ALIAS:
1281 aio_stat = REQ_STAT
1282 aio_lstat = REQ_LSTAT
1283 PPCODE:
1284{
1285 dREQ;
1286
1287 New (0, req->statdata, 1, Stat_t);
1288 if (!req->statdata)
1289 { 1726 {
1290 req_free (req); 1727 STRLEN svlen;
1291 croak ("out of memory during aio_req->statdata allocation"); 1728 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1292 } 1729#ifdef IOCPARM_LEN
1730 STRLEN need = IOCPARM_LEN (request);
1731#else
1732 STRLEN need = 256;
1733#endif
1293 1734
1294 if (SvPOK (fh_or_path)) 1735 if (svlen < need)
1295 { 1736 svptr = SvGROW (arg, need);
1296 req->type = ix;
1297 req->data = newSVsv (fh_or_path);
1298 req->dataptr = SvPVbyte_nolen (req->data);
1299 } 1737 }
1300 else 1738 else
1739 svptr = (char *)SvIV (arg);
1740
1301 { 1741 {
1742 dREQ;
1743
1302 req->type = REQ_FSTAT; 1744 req->type = ix;
1303 req->fh = newSVsv (fh_or_path); 1745 req->sv1 = newSVsv (fh);
1304 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1746 req->int1 = fd;
1747 req->int2 = (long)request;
1748 req->sv2 = SvREFCNT_inc (arg);
1749 req->ptr2 = svptr;
1750
1751 REQ_SEND;
1305 } 1752 }
1753}
1754
1755void
1756aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1757 ALIAS:
1758 aio_readlink = EIO_READLINK
1759 aio_realpath = EIO_REALPATH
1760 PPCODE:
1761{
1762 dREQ;
1763
1764 req->type = ix;
1765 req_set_path1 (req, pathname);
1306 1766
1307 REQ_SEND; 1767 REQ_SEND;
1308} 1768}
1309 1769
1310void 1770void
1311aio_unlink (pathname,callback=&PL_sv_undef) 1771aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1312 SV * pathname 1772 PPCODE:
1313 SV * callback 1773{
1774 int ifd = s_fileno_croak (in_fh , 0);
1775 int ofd = s_fileno_croak (out_fh, 1);
1776 dREQ;
1777
1778 req->type = EIO_SENDFILE;
1779 req->sv1 = newSVsv (out_fh);
1780 req->int1 = ofd;
1781 req->sv2 = newSVsv (in_fh);
1782 req->int2 = ifd;
1783 req->offs = in_offset;
1784 req->size = length;
1785
1786 REQ_SEND;
1787}
1788
1789void
1790aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1791 PPCODE:
1792{
1793 int fd = s_fileno_croak (fh, 0);
1794 dREQ;
1795
1796 req->type = EIO_READAHEAD;
1797 req->sv1 = newSVsv (fh);
1798 req->int1 = fd;
1799 req->offs = offset;
1800 req->size = length;
1801
1802 REQ_SEND;
1803}
1804
1805void
1806aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1314 ALIAS: 1807 ALIAS:
1808 aio_stat = EIO_STAT
1809 aio_lstat = EIO_LSTAT
1810 aio_statvfs = EIO_STATVFS
1811 PPCODE:
1812{
1813 dREQ;
1814
1815 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1816
1817 REQ_SEND;
1818}
1819
1820void
1821st_xtime ()
1822 ALIAS:
1823 st_atime = 0x01
1824 st_mtime = 0x02
1825 st_ctime = 0x04
1826 st_btime = 0x08
1827 st_xtime = 0x0f
1828 PPCODE:
1829 EXTEND (SP, 4);
1830 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1831 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1832 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1833 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1834
1835void
1836st_xtimensec ()
1837 ALIAS:
1838 st_atimensec = 0x01
1839 st_mtimensec = 0x02
1840 st_ctimensec = 0x04
1841 st_btimensec = 0x08
1842 st_xtimensec = 0x0f
1843 st_btimesec = 0x10
1844 st_gen = 0x20
1845 PPCODE:
1846 EXTEND (SP, 4);
1847 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1848 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1849 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1850 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1851 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1852 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1853
1854UV
1855major (UV dev)
1856 ALIAS:
1857 minor = 1
1858 CODE:
1859 RETVAL = ix ? minor (dev) : major (dev);
1860 OUTPUT:
1861 RETVAL
1862
1863UV
1864makedev (UV maj, UV min)
1865 CODE:
1866 RETVAL = makedev (maj, min);
1867 OUTPUT:
1868 RETVAL
1869
1870void
1871aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1872 PPCODE:
1873{
1874 dREQ;
1875
1876 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1877 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1878 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1879
1880 REQ_SEND;
1881}
1882
1883void
1884aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1885 PPCODE:
1886{
1887 dREQ;
1888
1889 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1890 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1891
1892 REQ_SEND;
1893}
1894
1895void
1896aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1897 PPCODE:
1898{
1899 dREQ;
1900
1901 req->int2 = mode;
1902 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1903
1904 REQ_SEND;
1905}
1906
1907void
1908aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1909 PPCODE:
1910{
1911 dREQ;
1912
1913 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1914 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1915 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1916
1917 REQ_SEND;
1918}
1919
1920void
1921aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1922 PPCODE:
1923{
1924 dREQ;
1925
1926 req->type = EIO_READDIR;
1927 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1928
1929 if (flags & EIO_READDIR_DENTS)
1930 req->int1 |= EIO_READDIR_CUSTOM2;
1931
1932 req_set_path1 (req, pathname);
1933
1934 REQ_SEND;
1935}
1936
1937void
1938aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1939 PPCODE:
1940{
1941 dREQ;
1942
1943 req->type = EIO_MKDIR;
1944 req->int2 = mode;
1945 req_set_path1 (req, pathname);
1946
1947 REQ_SEND;
1948}
1949
1950void
1951aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1952 ALIAS:
1315 aio_unlink = REQ_UNLINK 1953 aio_unlink = EIO_UNLINK
1316 aio_rmdir = REQ_RMDIR 1954 aio_rmdir = EIO_RMDIR
1317 aio_readdir = REQ_READDIR 1955 aio_readdir = EIO_READDIR
1318 PPCODE: 1956 PPCODE:
1319{ 1957{
1320 dREQ; 1958 dREQ;
1321 1959
1322 req->type = ix; 1960 req->type = ix;
1323 req->data = newSVsv (pathname); 1961 req_set_path1 (req, pathname);
1324 req->dataptr = SvPVbyte_nolen (req->data); 1962
1325
1326 REQ_SEND; 1963 REQ_SEND;
1327} 1964}
1328 1965
1329void 1966void
1330aio_link (oldpath,newpath,callback=&PL_sv_undef) 1967aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1331 SV * oldpath
1332 SV * newpath
1333 SV * callback
1334 ALIAS: 1968 ALIAS:
1335 aio_link = REQ_LINK 1969 aio_link = EIO_LINK
1336 aio_symlink = REQ_SYMLINK 1970 aio_symlink = EIO_SYMLINK
1337 aio_rename = REQ_RENAME 1971 aio_rename = EIO_RENAME
1338 PPCODE: 1972 PPCODE:
1339{ 1973{
1974 eio_wd wd2 = 0;
1340 dREQ; 1975 dREQ;
1341 1976
1342 req->type = ix; 1977 req->type = ix;
1343 req->fh = newSVsv (oldpath); 1978 req_set_path1 (req, oldpath);
1344 req->data2ptr = SvPVbyte_nolen (req->fh); 1979 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1345 req->data = newSVsv (newpath); 1980 req->int3 = (long)wd2;
1346 req->dataptr = SvPVbyte_nolen (req->data);
1347 1981
1348 REQ_SEND; 1982 REQ_SEND;
1349} 1983}
1350 1984
1351void 1985void
1352aio_busy (delay,callback=&PL_sv_undef) 1986aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1353 double delay
1354 SV * callback
1355 PPCODE: 1987 PPCODE:
1356{ 1988{
1989 eio_wd wd2 = 0;
1357 dREQ; 1990 dREQ;
1358 1991
1359 req->type = REQ_BUSY; 1992 req->type = EIO_RENAME;
1360 req->fd = delay < 0. ? 0 : delay; 1993 req_set_path1 (req, oldpath);
1361 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1994 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1362 1995 req->int2 = flags;
1996 req->int3 = (long)wd2;
1997
1363 REQ_SEND; 1998 REQ_SEND;
1364} 1999}
1365 2000
1366void 2001void
1367aio_group (callback=&PL_sv_undef) 2002aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1368 SV * callback 2003 PPCODE:
1369 PROTOTYPE: ;$ 2004{
2005 dREQ;
2006
2007 req->type = EIO_MKNOD;
2008 req->int2 = (mode_t)mode;
2009 req->offs = dev;
2010 req_set_path1 (req, pathname);
2011
2012 REQ_SEND;
2013}
2014
2015void
2016aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
2017 ALIAS:
2018 aio_mtouch = EIO_MTOUCH
2019 aio_msync = EIO_MSYNC
1370 PPCODE: 2020 PPCODE:
1371{ 2021{
2022 STRLEN svlen;
2023 char *svptr = SvPVbyte (data, svlen);
2024 UV len = SvUV (length);
2025
2026 if (flags < 0)
2027 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
2028
2029 if (offset < 0)
2030 offset += svlen;
2031
2032 if (offset < 0 || offset > svlen)
2033 croak ("offset outside of scalar");
2034
2035 if (!SvOK (length) || len + offset > svlen)
2036 len = svlen - offset;
2037
2038 {
2039 dREQ;
2040
2041 req->type = ix;
2042 req->sv2 = SvREFCNT_inc (data);
2043 req->ptr2 = (char *)svptr + offset;
2044 req->size = len;
2045 req->int1 = flags;
2046
2047 REQ_SEND;
2048 }
2049}
2050
2051void
2052aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2053 PPCODE:
2054{
2055 STRLEN svlen;
2056 char *svptr = SvPVbyte (data, svlen);
2057 UV len = SvUV (length);
2058
2059 if (offset < 0)
2060 offset += svlen;
2061
2062 if (offset < 0 || offset > svlen)
2063 croak ("offset outside of scalar");
2064
2065 if (!SvOK (length) || len + offset > svlen)
2066 len = svlen - offset;
2067
2068 {
2069 dREQ;
2070
2071 req->type = EIO_MLOCK;
2072 req->sv2 = SvREFCNT_inc (data);
2073 req->ptr2 = (char *)svptr + offset;
2074 req->size = len;
2075
2076 REQ_SEND;
2077 }
2078}
2079
2080void
2081aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2082 PPCODE:
2083{
2084 dREQ;
2085
2086 req->type = EIO_MLOCKALL;
2087 req->int1 = flags;
2088
2089 REQ_SEND;
2090}
2091
2092void
2093aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2094 PPCODE:
2095{
2096 int fd = s_fileno_croak (fh, 0);
1372 dREQ; 2097 dREQ;
1373 2098
1374 req->type = REQ_GROUP; 2099 req->type = EIO_CUSTOM;
1375 req_send (req); 2100 req->sv1 = newSVsv (fh);
2101 req->int1 = fd;
1376 2102
1377 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2103 req->feed = fiemap;
1378} 2104#if HAVE_FIEMAP
2105 /* keep our fingers crossed that the next two types are 64 bit */
2106 req->offs = start;
2107 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2108 req->int2 = flags;
2109 req->int3 = SvOK (count) ? SvIV (count) : -1;
2110#endif
1379 2111
2112 REQ_SEND;
2113}
2114
1380void 2115void
1381aio_nop (callback=&PL_sv_undef) 2116aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1382 SV * callback 2117 PPCODE:
2118{
2119 char *svptr = 0;
2120
2121 sv_clear_foreign (data);
2122
2123 if (length) /* known length, directly read into scalar */
2124 {
2125 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2126 svptr = sv_grow (data, length + 1);
2127 else if (SvCUR (data) < length)
2128 croak ("length outside of scalar, and cannot grow");
2129 else
2130 svptr = SvPVbyte_nolen (data);
2131 }
2132
2133 {
2134 dREQ;
2135
2136 req->type = EIO_SLURP;
2137 req_set_path1 (req, pathname);
2138 req->offs = offset;
2139 req->size = length;
2140 req->sv2 = SvREFCNT_inc (data);
2141 req->ptr2 = svptr;
2142
2143 if (!SvREADONLY (data))
2144 {
2145 SvREADONLY_on (data);
2146 req->flags |= FLAG_SV2_RO_OFF;
2147 }
2148
2149 REQ_SEND;
2150 }
2151}
2152
2153void
2154aio_busy (double delay, SV *callback = &PL_sv_undef)
1383 PPCODE: 2155 PPCODE:
1384{ 2156{
1385 dREQ; 2157 dREQ;
1386 2158
1387 req->type = REQ_NOP; 2159 req->type = EIO_BUSY;
2160 req->nv1 = delay < 0. ? 0. : delay;
1388 2161
1389 REQ_SEND; 2162 REQ_SEND;
1390} 2163}
1391 2164
1392void 2165void
1393aioreq_pri (int pri = DEFAULT_PRI) 2166aio_group (SV *callback = &PL_sv_undef)
1394 CODE: 2167 PPCODE:
2168{
2169 dREQ;
2170
2171 req->type = EIO_GROUP;
2172
2173 PUTBACK;
2174 req_submit (req);
2175 SPAGAIN;
2176
2177 XPUSHs (req_sv (req, aio_grp_stash));
2178}
2179
2180void
2181aio_nop (SV *callback = &PL_sv_undef)
2182 ALIAS:
2183 aio_nop = EIO_NOP
2184 aio_sync = EIO_SYNC
2185 PPCODE:
2186{
2187 dREQ;
2188
2189 req->type = ix;
2190
2191 REQ_SEND;
2192}
2193
2194int
2195aioreq_pri (int pri = NO_INIT)
2196 CODE:
2197 RETVAL = next_pri;
2198 if (items > 0)
2199 {
1395 if (pri < PRI_MIN) pri = PRI_MIN; 2200 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1396 if (pri > PRI_MAX) pri = PRI_MAX; 2201 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1397 next_pri = pri + PRI_BIAS; 2202 next_pri = pri;
2203 }
2204 OUTPUT:
2205 RETVAL
1398 2206
1399void 2207void
1400aioreq_nice (int nice = 0) 2208aioreq_nice (int nice = 0)
1401 CODE: 2209 CODE:
1402 nice = next_pri - nice; 2210 nice = next_pri - nice;
1403 if (nice < PRI_MIN) nice = PRI_MIN; 2211 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1404 if (nice > PRI_MAX) nice = PRI_MAX; 2212 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1405 next_pri = nice + PRI_BIAS; 2213 next_pri = nice;
1406 2214
1407void 2215void
1408flush () 2216flush ()
1409 PROTOTYPE:
1410 CODE: 2217 CODE:
1411 while (nreqs) 2218 while (eio_nreqs ())
1412 { 2219 {
1413 poll_wait (); 2220 poll_wait ();
1414 poll_cb (); 2221 poll_cb ();
1415 } 2222 }
1416 2223
1417void 2224int
1418poll() 2225poll ()
1419 PROTOTYPE:
1420 CODE: 2226 CODE:
1421 if (nreqs)
1422 {
1423 poll_wait (); 2227 poll_wait ();
1424 poll_cb (); 2228 RETVAL = poll_cb ();
1425 }
1426
1427int
1428poll_fileno()
1429 PROTOTYPE:
1430 CODE:
1431 RETVAL = respipe [0];
1432 OUTPUT: 2229 OUTPUT:
1433 RETVAL 2230 RETVAL
1434 2231
1435int 2232int
2233poll_fileno ()
2234 CODE:
2235 RETVAL = s_epipe_fd (&respipe);
2236 OUTPUT:
2237 RETVAL
2238
2239int
1436poll_cb(...) 2240poll_cb (...)
1437 PROTOTYPE: 2241 PROTOTYPE:
1438 CODE: 2242 CODE:
1439 RETVAL = poll_cb (); 2243 RETVAL = poll_cb ();
1440 OUTPUT: 2244 OUTPUT:
1441 RETVAL 2245 RETVAL
1442 2246
1443void 2247void
1444poll_wait() 2248poll_wait ()
2249 CODE:
2250 poll_wait ();
2251
2252int
2253nreqs ()
2254 CODE:
2255 RETVAL = eio_nreqs ();
2256 OUTPUT:
2257 RETVAL
2258
2259int
2260nready ()
2261 CODE:
2262 RETVAL = eio_nready ();
2263 OUTPUT:
2264 RETVAL
2265
2266int
2267npending ()
2268 CODE:
2269 RETVAL = eio_npending ();
2270 OUTPUT:
2271 RETVAL
2272
2273int
2274nthreads ()
2275 CODE:
2276 RETVAL = eio_nthreads ();
2277 OUTPUT:
2278 RETVAL
2279
2280int
2281fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2282 CODE:
2283 RETVAL = posix_fadvise (fh, offset, length, advice);
2284 OUTPUT:
2285 RETVAL
2286
2287IV
2288sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2289 CODE:
2290 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2291 OUTPUT:
2292 RETVAL
2293
2294void
2295mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2296 PPCODE:
2297 sv_clear_foreign (scalar);
2298{
2299 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2300 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2301 if (addr == (void *)-1)
2302 XSRETURN_NO;
2303
2304 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2305
2306 if (!(prot & PROT_WRITE))
2307 SvREADONLY_on (scalar);
2308
2309 XSRETURN_YES;
2310}
2311
2312void
2313munmap (SV *scalar)
2314 CODE:
2315 sv_clear_foreign (scalar);
2316
2317SV *
2318mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2319 CODE:
2320{
2321 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2322 void *new;
2323
2324 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2325 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2326
2327 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2328
2329 RETVAL = &PL_sv_no;
2330
2331 if (new != (void *)-1)
2332 {
2333 RETVAL = new == (void *)mg->mg_ptr
2334 ? newSVpvn ("0 but true", 10)
2335 : &PL_sv_yes;
2336
2337 mg->mg_ptr = (char *)new;
2338 mg->mg_obj = (SV *)new_length;
2339
2340 SvPVX (scalar) = mg->mg_ptr;
2341 SvCUR_set (scalar, new_length);
2342 }
2343}
2344 OUTPUT:
2345 RETVAL
2346
2347int
2348madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2349 ALIAS:
2350 mprotect = 1
2351 CODE:
2352{
2353 STRLEN svlen;
2354 void *addr = SvPVbyte (scalar, svlen);
2355 STRLEN len = SvUV (length);
2356
2357 if (offset < 0)
2358 offset += svlen;
2359
2360 if (offset < 0 || offset > svlen)
2361 croak ("offset outside of scalar");
2362
2363 if (!SvOK (length) || len + offset > svlen)
2364 len = svlen - offset;
2365
2366 addr = (void *)(((intptr_t)addr) + offset);
2367 eio_page_align (&addr, &len);
2368
2369 switch (ix)
2370 {
2371 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2372 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2373 }
2374}
2375 OUTPUT:
2376 RETVAL
2377
2378int
2379munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2380 CODE:
2381{
2382 STRLEN svlen;
2383 void *addr = SvPVbyte (scalar, svlen);
2384 size_t len = SvUV (length);
2385
2386 if (offset < 0)
2387 offset += svlen;
2388
2389 if (offset < 0 || offset > svlen)
2390 croak ("offset outside of scalar");
2391
2392 if (!SvOK (length) || len + offset > svlen)
2393 len = svlen - offset;
2394
2395 addr = (void *)(((intptr_t)addr) + offset);
2396 eio_page_align (&addr, &len);
2397#if _POSIX_MEMLOCK_RANGE
2398 RETVAL = munlock (addr, len);
2399#else
2400 RETVAL = EIO_ENOSYS ();
2401#endif
2402}
2403 OUTPUT:
2404 RETVAL
2405
2406int
2407mlockall (int flags)
2408 PROTOTYPE: $;
2409 CODE:
2410 RETVAL = eio_mlockall_sync (flags);
2411 OUTPUT:
2412 RETVAL
2413
2414int
2415munlockall ()
2416 CODE:
2417#if _POSIX_MEMLOCK
2418 munlockall ();
2419#else
2420 RETVAL = EIO_ENOSYS ();
2421#endif
2422 OUTPUT:
2423 RETVAL
2424
2425int
2426statx (SV8 *pathname, int flags, UV mask)
2427 CODE:
2428{
2429 /* undocumented, and might go away, and anyway, should use eio_statx */
2430 SV *wdsv = 0;
2431 SV *pathsv = 0;
2432 eio_wd wd = EIO_CWD;
2433 void *ptr;
2434 int res;
2435
2436 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2437 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2438
2439 SvREFCNT_dec (pathsv);
2440 SvREFCNT_dec (wdsv);
2441}
2442 OUTPUT:
2443 RETVAL
2444
2445U32
2446stx_mode ()
1445 PROTOTYPE: 2447 PROTOTYPE:
1446 CODE: 2448 CODE:
2449#if HAVE_STATX
2450 RETVAL = stx.stx_mode;
2451#else
2452 XSRETURN_UNDEF;
2453#endif
2454 OUTPUT:
2455 RETVAL
2456
2457#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2458#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2459#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2460#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2461#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2462#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2463#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2464#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2465#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2466#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2467#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2468#define STATX_OFFSET_size statx_offsetof (stx_size)
2469#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2470#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2471#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2472#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2473#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2474#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2475
2476U32
2477stx_mask ()
2478 PROTOTYPE:
2479 ALIAS:
2480 stx_mask = STATX_OFFSET_mask
2481 stx_blksize = STATX_OFFSET_blksize
2482 stx_nlink = STATX_OFFSET_nlink
2483 stx_uid = STATX_OFFSET_uid
2484 stx_gid = STATX_OFFSET_gid
2485 stx_rdev_major = STATX_OFFSET_rdev_major
2486 stx_rdev_minor = STATX_OFFSET_rdev_minor
2487 stx_dev_major = STATX_OFFSET_dev_major
2488 stx_dev_minor = STATX_OFFSET_dev_minor
2489 CODE:
2490#if HAVE_STATX
2491 RETVAL = *(__u32 *)((char *)&stx + ix);
2492#else
2493 XSRETURN_UNDEF;
2494#endif
2495 OUTPUT:
2496 RETVAL
2497
2498VAL64
2499stx_attributes ()
2500 PROTOTYPE:
2501 ALIAS:
2502 stx_attributes = STATX_OFFSET_attributes
2503 stx_ino = STATX_OFFSET_ino
2504 stx_size = STATX_OFFSET_size
2505 stx_blocks = STATX_OFFSET_blocks
2506 stx_attributes_mask = STATX_OFFSET_attributes_mask
2507 CODE:
2508#if HAVE_STATX
2509 RETVAL = *(__u64 *)((char *)&stx + ix);
2510#else
2511 XSRETURN_UNDEF;
2512#endif
2513 OUTPUT:
2514 RETVAL
2515
2516NV
2517stx_atime ()
2518 PROTOTYPE:
2519 ALIAS:
2520 stx_atime = STATX_OFFSET_atime
2521 stx_btime = STATX_OFFSET_btime
2522 stx_ctime = STATX_OFFSET_ctime
2523 stx_mtime = STATX_OFFSET_mtime
2524 CODE:
2525#if HAVE_STATX
2526 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2527 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2528#else
2529 XSRETURN_UNDEF;
2530#endif
2531 OUTPUT:
2532 RETVAL
2533
2534VAL64
2535stx_atimesec ()
2536 PROTOTYPE:
2537 ALIAS:
2538 stx_atimesec = STATX_OFFSET_atime
2539 stx_btimesec = STATX_OFFSET_btime
2540 stx_ctimesec = STATX_OFFSET_ctime
2541 stx_mtimesec = STATX_OFFSET_mtime
2542 CODE:
2543#if HAVE_STATX
2544 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2545 RETVAL = ts->tv_sec;
2546#else
2547 XSRETURN_UNDEF;
2548#endif
2549 OUTPUT:
2550 RETVAL
2551
2552U32
2553stx_atimensec ()
2554 PROTOTYPE:
2555 ALIAS:
2556 stx_atimensec = STATX_OFFSET_atime
2557 stx_btimensec = STATX_OFFSET_btime
2558 stx_ctimensec = STATX_OFFSET_ctime
2559 stx_mtimensec = STATX_OFFSET_mtime
2560 CODE:
2561#if HAVE_STATX
2562 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2563 RETVAL = ts->tv_nsec;
2564#else
2565 RETVAL = 0;
2566#endif
2567 OUTPUT:
2568 RETVAL
2569
2570void
2571accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2572 PPCODE:
2573{
2574 SV *retval;
2575#if HAVE_ACCEPT4
2576 socklen_t salen_ = salen ? salen + 1 : 0;
2577
1447 if (nreqs) 2578 if (salen)
1448 poll_wait (); 2579 {
2580 sv_upgrade (sockaddr, SVt_PV);
2581 sv_grow (sockaddr, salen_);
2582 }
2583
2584 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2585
2586 retval = newmortalFH (res, O_RDWR);
2587
2588 if (res >= 0 && salen > 0)
2589 {
2590 if (salen_ > salen + 1)
2591 salen_ = salen + 1;
2592
2593 SvPOK_only (sockaddr);
2594 SvCUR_set (sockaddr, salen_);
2595 }
2596#else
2597 errno = ENOSYS;
2598 retval = &PL_sv_undef;
2599#endif
2600 XPUSHs (retval);
2601}
2602
2603ssize_t
2604splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2605 CODE:
2606{
2607#if HAVE_LINUX_SPLICE
2608 loff_t off_in_, off_out_;
2609 RETVAL = splice (
2610 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2611 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2612 length, flags
2613 );
2614#else
2615 RETVAL = EIO_ENOSYS ();
2616#endif
2617}
2618 OUTPUT:
2619 RETVAL
2620
2621ssize_t
2622tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2623 CODE:
2624#if HAVE_LINUX_SPLICE
2625 RETVAL = tee (rfh, wfh, length, flags);
2626#else
2627 RETVAL = EIO_ENOSYS ();
2628#endif
2629 OUTPUT:
2630 RETVAL
1449 2631
1450int 2632int
1451nreqs() 2633pipesize (aio_rfd rfh, int new_size = -1)
2634 PROTOTYPE: $;$
2635 CODE:
2636#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2637 if (new_size >= 0)
2638 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2639 else
2640 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2641#else
2642 errno = ENOSYS;
2643 RETVAL = -1;
2644#endif
2645 OUTPUT:
2646 RETVAL
2647
2648void
2649pipe2 (int flags = 0)
1452 PROTOTYPE: 2650 PROTOTYPE: ;$
2651 PPCODE:
2652{
2653 int fd[2];
2654 int res;
2655
2656 if (flags)
2657#if HAVE_PIPE2
2658 res = pipe2 (fd, flags);
2659#else
2660 res = (errno = ENOSYS, -1);
2661#endif
2662 else
2663 res = pipe (fd);
2664
2665 if (!res)
2666 {
2667 EXTEND (SP, 2);
2668 PUSHs (newmortalFH (fd[0], O_RDONLY));
2669 PUSHs (newmortalFH (fd[1], O_WRONLY));
2670 }
2671}
2672
2673void
2674pidfd_open (int pid, unsigned int flags = 0)
2675 PPCODE:
2676{
2677 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2678 int fd = syscall (SYS_pidfd_open, pid, flags);
2679 XPUSHs (newmortalFH (fd, O_RDWR));
2680}
2681
2682int
2683pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
2684 PPCODE:
2685{
2686 #if HAVE_SIGINFO_T
2687 int res;
2688 siginfo_t si = { 0 };
2689
2690 if (SvOK (siginfo))
2691 {
2692 HV *hv;
2693 SV **svp;
2694
2695 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2696 croak ("siginfo argument must be a hashref code, pid, uid and value_int or value_ptr members, caught");
2697
2698 hv = (HV *)SvRV (siginfo);
2699
2700 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2701 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2702 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2703 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2704 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2705 }
2706
2707 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2708 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2709 #else
2710 res = (errno = ENOSYS, -1);
2711 #endif
2712
2713 XPUSHs (sv_2mortal (newSViv (res)));
2714}
2715
2716void
2717pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
2718 PPCODE:
2719{
2720 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2721 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2722 XPUSHs (newmortalFH (fd, O_RDWR));
2723}
2724
2725void
2726eventfd (unsigned int initval = 0, int flags = 0)
2727 PPCODE:
2728{
2729 int fd;
2730#if HAVE_EVENTFD
2731 fd = eventfd (initval, flags);
2732#else
2733 fd = (errno = ENOSYS, -1);
2734#endif
2735
2736 XPUSHs (newmortalFH (fd, O_RDWR));
2737}
2738
2739void
2740timerfd_create (int clockid, int flags = 0)
2741 PPCODE:
2742{
2743 int fd;
2744#if HAVE_TIMERFD
2745 fd = timerfd_create (clockid, flags);
2746#else
2747 fd = (errno = ENOSYS, -1);
2748#endif
2749
2750 XPUSHs (newmortalFH (fd, O_RDWR));
2751}
2752
2753void
2754timerfd_settime (SV *fh, int flags, NV interval, NV value)
2755 PPCODE:
2756{
2757 int fd = s_fileno_croak (fh, 0);
2758#if HAVE_TIMERFD
2759 int res;
2760 struct itimerspec its, ots;
2761
2762 ts_set (&its.it_interval, interval);
2763 ts_set (&its.it_value , value);
2764 res = timerfd_settime (fd, flags, &its, &ots);
2765
2766 if (!res)
2767 {
2768 EXTEND (SP, 2);
2769 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2770 PUSHs (newSVnv (ts_get (&ots.it_value)));
2771 }
2772#else
2773 errno = ENOSYS;
2774#endif
2775}
2776
2777void
2778timerfd_gettime (SV *fh)
2779 PPCODE:
2780{
2781 int fd = s_fileno_croak (fh, 0);
2782#if HAVE_TIMERFD
2783 int res;
2784 struct itimerspec ots;
2785 res = timerfd_gettime (fd, &ots);
2786
2787 if (!res)
2788 {
2789 EXTEND (SP, 2);
2790 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2791 PUSHs (newSVnv (ts_get (&ots.it_value)));
2792 }
2793#else
2794 errno = ENOSYS;
2795#endif
2796}
2797
2798void
2799memfd_create (SV8 *pathname, int flags = 0)
2800 PPCODE:
2801{
2802 int fd;
2803#if HAVE_MEMFD_CREATE
2804 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2805#else
2806 fd = (errno = ENOSYS, -1);
2807#endif
2808
2809 XPUSHs (newmortalFH (fd, O_RDWR));
2810}
2811
2812UV
2813get_fdlimit ()
1453 CODE: 2814 CODE:
1454 RETVAL = nreqs; 2815#if HAVE_RLIMITS
2816 struct rlimit rl;
2817 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2818 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2819#endif
2820 XSRETURN_UNDEF;
1455 OUTPUT: 2821 OUTPUT:
1456 RETVAL 2822 RETVAL
2823
2824void
2825min_fdlimit (UV limit = 0x7fffffffU)
2826 CODE:
2827{
2828#if HAVE_RLIMITS
2829 struct rlimit rl;
2830 rlim_t orig_rlim_max;
2831 UV bit;
2832
2833 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2834 goto fail;
2835
2836 if (rl.rlim_cur == RLIM_INFINITY)
2837 XSRETURN_YES;
2838
2839 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2840
2841 if (rl.rlim_cur < limit)
2842 {
2843 rl.rlim_cur = limit;
2844
2845 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2846 rl.rlim_max = rl.rlim_cur;
2847 }
2848
2849 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2850 XSRETURN_YES;
2851
2852 if (errno == EPERM)
2853 {
2854 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2855 /* our limit overflows a system-wide limit */
2856 /* try an adaptive algorithm, but do not lower the hardlimit */
2857 rl.rlim_max = 0;
2858 for (bit = 0x40000000U; bit; bit >>= 1)
2859 {
2860 rl.rlim_max |= bit;
2861 rl.rlim_cur = rl.rlim_max;
2862
2863 /* never decrease the hard limit */
2864 if (rl.rlim_max < orig_rlim_max)
2865 break;
2866
2867 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2868 rl.rlim_max &= ~bit; /* too high, remove bit again */
2869 }
2870
2871 /* now, raise the soft limit to the max permitted */
2872 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2873 {
2874 rl.rlim_cur = rl.rlim_max;
2875 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2876 errno = EPERM;
2877 }
2878 }
2879#endif
2880 fail:
2881 XSRETURN_UNDEF;
2882}
2883
2884void _on_next_submit (SV *cb)
2885 CODE:
2886 SvREFCNT_dec (on_next_submit);
2887 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1457 2888
1458PROTOTYPES: DISABLE 2889PROTOTYPES: DISABLE
2890
2891MODULE = IO::AIO PACKAGE = IO::AIO::WD
2892
2893BOOT:
2894{
2895 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2896 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2897}
2898
2899void
2900DESTROY (SV *self)
2901 CODE:
2902{
2903 aio_wd wd = SvAIO_WD (self);
2904#if HAVE_AT
2905 {
2906 SV *callback = &PL_sv_undef;
2907 dREQ; /* clobbers next_pri :/ */
2908 next_pri = req->pri; /* restore next_pri */
2909 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2910 req->type = EIO_WD_CLOSE;
2911 req->wd = wd;
2912 REQ_SEND;
2913 }
2914#else
2915 eio_wd_close_sync (wd);
2916#endif
2917}
1459 2918
1460MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2919MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1461 2920
1462void 2921void
1463cancel (aio_req_ornot req) 2922cancel (aio_req_ornot req)
1464 CODE: 2923 CODE:
1465 req_cancel (req); 2924 eio_cancel (req);
1466 2925
1467void 2926void
1468cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2927cb (aio_req_ornot req, SV *callback = NO_INIT)
1469 CODE: 2928 PPCODE:
2929{
2930 if (GIMME_V != G_VOID)
2931 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2932
2933 if (items > 1)
2934 {
2935 SV *cb_cv = get_cb (callback);
2936
1470 SvREFCNT_dec (req->callback); 2937 SvREFCNT_dec (req->callback);
1471 req->callback = newSVsv (callback); 2938 req->callback = SvREFCNT_inc (cb_cv);
2939 }
2940}
1472 2941
1473MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2942MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1474 2943
1475void 2944void
1476add (aio_req grp, ...) 2945add (aio_req grp, ...)
1477 PPCODE: 2946 PPCODE:
1478{ 2947{
1479 int i; 2948 int i;
1480 aio_req req;
1481 2949
1482 if (grp->fd == 2) 2950 if (grp->int1 == 2)
1483 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2951 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1484 2952
1485 for (i = 1; i < items; ++i ) 2953 for (i = 1; i < items; ++i )
1486 { 2954 {
2955 aio_req req;
2956
1487 if (GIMME_V != G_VOID) 2957 if (GIMME_V != G_VOID)
1488 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2958 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1489 2959
1490 req = SvAIO_REQ (ST (i)); 2960 req = SvAIO_REQ (ST (i));
1491 2961
1492 if (req) 2962 if (req)
1493 { 2963 eio_grp_add (grp, req);
1494 ++grp->length;
1495 req->grp = grp;
1496
1497 req->grp_prev = 0;
1498 req->grp_next = grp->grp_first;
1499
1500 if (grp->grp_first)
1501 grp->grp_first->grp_prev = req;
1502
1503 grp->grp_first = req;
1504 }
1505 } 2964 }
1506} 2965}
1507 2966
1508void 2967void
1509cancel_subs (aio_req_ornot req) 2968cancel_subs (aio_req_ornot req)
… …
1513void 2972void
1514result (aio_req grp, ...) 2973result (aio_req grp, ...)
1515 CODE: 2974 CODE:
1516{ 2975{
1517 int i; 2976 int i;
2977 AV *av;
2978
2979 grp->errorno = errno;
2980
1518 AV *av = newAV (); 2981 av = newAV ();
2982 av_extend (av, items - 1);
1519 2983
1520 for (i = 1; i < items; ++i ) 2984 for (i = 1; i < items; ++i )
1521 av_push (av, newSVsv (ST (i))); 2985 av_push (av, newSVsv (ST (i)));
1522 2986
1523 SvREFCNT_dec (grp->data); 2987 SvREFCNT_dec (grp->sv1);
1524 grp->data = (SV *)av; 2988 grp->sv1 = (SV *)av;
1525} 2989}
2990
2991void
2992errno (aio_req grp, int errorno = errno)
2993 CODE:
2994 grp->errorno = errorno;
1526 2995
1527void 2996void
1528limit (aio_req grp, int limit) 2997limit (aio_req grp, int limit)
1529 CODE: 2998 CODE:
1530 grp->fd2 = limit; 2999 eio_grp_limit (grp, limit);
1531 aio_grp_feed (grp);
1532 3000
1533void 3001void
1534feed (aio_req grp, SV *callback=&PL_sv_undef) 3002feed (aio_req grp, SV *callback = &PL_sv_undef)
1535 CODE: 3003 CODE:
1536{ 3004{
1537 SvREFCNT_dec (grp->fh2); 3005 SvREFCNT_dec (grp->sv2);
1538 grp->fh2 = newSVsv (callback); 3006 grp->sv2 = newSVsv (callback);
3007 grp->feed = aio_grp_feed;
1539 3008
1540 if (grp->fd2 <= 0) 3009 if (grp->int2 <= 0)
1541 grp->fd2 = 2; 3010 grp->int2 = 2;
1542 3011
1543 aio_grp_feed (grp); 3012 eio_grp_limit (grp, grp->int2);
1544} 3013}
1545 3014

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