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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.78 by root, Thu Oct 26 14:35:34 2006 UTC vs.
Revision 1.286 by root, Tue Dec 29 15:25:26 2020 UTC

1/* solaris */ 1#include "libeio/xthread.h"
2#define _POSIX_PTHREAD_SEMANTICS 1
3
4#if __linux && !defined(_GNU_SOURCE)
5# define _GNU_SOURCE
6#endif
7
8/* just in case */
9#define _REENTRANT 1
10 2
11#include <errno.h> 3#include <errno.h>
12 4
13#include "EXTERN.h" 5#include "EXTERN.h"
14#include "perl.h" 6#include "perl.h"
15#include "XSUB.h" 7#include "XSUB.h"
8#include "perliol.h"
16 9
17#include "autoconf/config.h" 10#if !defined mg_findext
18 11# define mg_findext(sv,type,vtbl) mg_find (sv, type)
19#include <pthread.h> 12#endif
20 13
21#include <stddef.h> 14#include <stddef.h>
15#include <stdlib.h>
22#include <errno.h> 16#include <errno.h>
23#include <sys/time.h>
24#include <sys/select.h>
25#include <sys/types.h> 17#include <sys/types.h>
18#include <sys/socket.h>
26#include <sys/stat.h> 19#include <sys/stat.h>
27#include <limits.h> 20#include <limits.h>
28#include <unistd.h>
29#include <fcntl.h> 21#include <fcntl.h>
30#include <signal.h>
31#include <sched.h> 22#include <sched.h>
32 23
33#if HAVE_SENDFILE 24/* the incompetent fool that created musl keeps __linux__, refuses
34# 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>
35# include <sys/sendfile.h> 88 #include <sys/select.h>
36# elif __freebsd 89 #include <unistd.h>
90 #include <utime.h>
91 #include <signal.h>
92
93 #define EIO_STRUCT_STAT Stat_t
94
95#endif
96
97/*****************************************************************************/
98
99#if __GNUC__ >= 3
100# define expect(expr,value) __builtin_expect ((expr),(value))
101#else
102# define expect(expr,value) (expr)
103#endif
104
105#define expect_false(expr) expect ((expr) != 0, 0)
106#define expect_true(expr) expect ((expr) != 0, 1)
107
108/*****************************************************************************/
109
110#include "config.h"
111
112#if HAVE_SYS_MKDEV_H
37# include <sys/socket.h> 113# include <sys/mkdev.h>
114#elif HAVE_SYS_SYSMACROS_H
115# include <sys/sysmacros.h>
116#endif
117
118#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
119# include <sys/mman.h>
120#endif
121
122#if HAVE_SYS_UIO_H
38# include <sys/uio.h> 123# include <sys/uio.h>
39# elif __hpux 124#endif
40# include <sys/socket.h> 125
41# elif __solaris /* not yet */ 126#if HAVE_ST_XTIMENSEC
127# define ATIMENSEC PL_statcache.st_atimensec
128# define MTIMENSEC PL_statcache.st_mtimensec
129# define CTIMENSEC PL_statcache.st_ctimensec
130#elif HAVE_ST_XTIMESPEC
131# define ATIMENSEC PL_statcache.st_atim.tv_nsec
132# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
133# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
134#else
135# define ATIMENSEC 0
136# define MTIMENSEC 0
137# define CTIMENSEC 0
138#endif
139
140#if HAVE_ST_BIRTHTIMENSEC
141# define BTIMESEC PL_statcache.st_birthtime
142# define BTIMENSEC PL_statcache.st_birthtimensec
143#elif HAVE_ST_BIRTHTIMESPEC
144# define BTIMESEC PL_statcache.st_birthtim.tv_sec
145# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
146#else
147# define BTIMESEC 0
148# define BTIMENSEC 0
149#endif
150
151#if HAVE_ST_GEN
152# define ST_GEN PL_statcache.st_gen
153#else
154# define ST_GEN 0
155#endif
156
157#include "schmorp.h"
158
159#if HAVE_EVENTFD
42# include <sys/sendfile.h> 160# include <sys/eventfd.h>
161#endif
162
163#if HAVE_TIMERFD
164# include <sys/timerfd.h>
165#endif
166
167#if HAVE_RLIMITS
168 #include <sys/time.h>
169 #include <sys/resource.h>
170#endif
171
172typedef SV SV8; /* byte-sv, used for argument-checking */
173typedef int aio_rfd; /* read file desriptor */
174typedef int aio_wfd; /* write file descriptor */
175
176static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
177
178#define EIO_REQ_MEMBERS \
179 SV *callback; \
180 SV *sv1, *sv2; \
181 SV *sv3, *sv4; \
182 STRLEN stroffset; \
183 SV *self;
184
185#define EIO_NO_WRAPPERS 1
186
187#include "libeio/eio.h"
188
189static int req_invoke (eio_req *req);
190#define EIO_FINISH(req) req_invoke (req)
191static void req_destroy (eio_req *grp);
192#define EIO_DESTROY(req) req_destroy (req)
193
194#include "libeio/eio.c"
195
196#if !HAVE_POSIX_FADVISE
197# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
198#endif
199
200#if !HAVE_POSIX_MADVISE
201# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
202#endif
203
204#ifndef MAP_ANONYMOUS
205# ifdef MAP_ANON
206# define MAP_ANONYMOUS MAP_ANON
43# else 207# else
44# error sendfile support requested but not available 208# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 209# endif
46#endif 210#endif
47 211
48/* used for struct dirent, AIX doesn't provide it */ 212#ifndef makedev
49#ifndef NAME_MAX 213# define makedev(maj,min) (((maj) << 8) | (min))
50# define NAME_MAX 4096
51#endif 214#endif
52 215#ifndef major
53#ifndef PTHREAD_STACK_MIN 216# define major(dev) ((dev) >> 8)
54/* care for broken platforms, e.g. windows */
55# define PTHREAD_STACK_MIN 16384
56#endif 217#endif
218#ifndef minor
219# define minor(dev) ((dev) & 0xff)
220#endif
57 221
58#if __ia64 222/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
59# define STACKSIZE 65536 223#ifdef __sun
60#elif __i386 || __x86_64 /* 16k is unreasonably high :( */ 224# undef PAGESIZE
61# define STACKSIZE PTHREAD_STACK_MIN 225#endif
226
227#if PAGESIZE <= 0
228# define PAGESIZE sysconf (_SC_PAGESIZE)
229#endif
230
231#if HAVE_SYSCALL
232#include <sys/syscall.h>
62#else 233#else
63# define STACKSIZE 16384 234# define syscall(nr,...) (errno = ENOSYS, -1)
64#endif 235#endif
65 236
66/* buffer size for various temporary buffers */ 237/*****************************************************************************/
67#define AIO_BUFSIZE 65536
68 238
69#define dBUF \ 239#if !_POSIX_MAPPED_FILES
70 char *aio_buf; \ 240# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
71 LOCK (wrklock); \ 241# define munmap(addr,length) EIO_ENOSYS ()
72 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 242#endif
73 UNLOCK (wrklock); \ 243
74 if (!aio_buf) \ 244#if !_POSIX_MEMORY_PROTECTION
245# define mprotect(addr,len,prot) EIO_ENOSYS ()
246#endif
247
248#if !MREMAP_MAYMOVE
249# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
250#endif
251
252#define FOREIGN_MAGIC PERL_MAGIC_ext
253
254static int ecb_cold
255mmap_free (pTHX_ SV *sv, MAGIC *mg)
256{
257 int old_errno = errno;
258 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
259 errno = old_errno;
260
261 mg->mg_obj = 0; /* just in case */
262
263 SvREADONLY_off (sv);
264
265 if (SvPVX (sv) != mg->mg_ptr)
266 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
267
268 SvCUR_set (sv, 0);
269 SvPVX (sv) = 0;
270 SvOK_off (sv);
271
75 return -1; 272 return 0;
273}
76 274
77enum { 275static MGVTBL mmap_vtbl = {
78 REQ_QUIT, 276 0, 0, 0, 0, mmap_free
79 REQ_OPEN, REQ_CLOSE,
80 REQ_READ, REQ_WRITE, REQ_READAHEAD,
81 REQ_SENDFILE,
82 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
83 REQ_FSYNC, REQ_FDATASYNC,
84 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
85 REQ_READDIR,
86 REQ_LINK, REQ_SYMLINK,
87 REQ_GROUP, REQ_NOP,
88 REQ_BUSY,
89}; 277};
90 278
91#define AIO_REQ_KLASS "IO::AIO::REQ" 279static int ecb_cold
92#define AIO_GRP_KLASS "IO::AIO::GRP" 280sysfree_free (pTHX_ SV *sv, MAGIC *mg)
93
94typedef struct aio_cb
95{ 281{
96 struct aio_cb *volatile next; 282 free (mg->mg_ptr);
283 mg->mg_obj = 0; /* just in case */
97 284
98 SV *data, *callback; 285 SvREADONLY_off (sv);
99 SV *fh, *fh2;
100 void *dataptr, *data2ptr;
101 Stat_t *statdata;
102 off_t offset;
103 size_t length;
104 ssize_t result;
105 286
106 STRLEN dataoffset; 287 if (SvPVX (sv) != mg->mg_ptr)
107 int type; 288 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
108 int fd, fd2;
109 int errorno;
110 mode_t mode; /* open */
111 289
112 unsigned char flags; 290 SvCUR_set (sv, 0);
113 unsigned char pri; 291 SvPVX (sv) = 0;
292 SvOK_off (sv);
114 293
115 SV *self; /* the perl counterpart of this request, if any */ 294 return 0;
116 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 295}
117} aio_cb;
118 296
119enum { 297static MGVTBL sysfree_vtbl = {
120 FLAG_CANCELLED = 0x01, 298 0, 0, 0, 0, sysfree_free
121}; 299};
122 300
123typedef aio_cb *aio_req; 301/*****************************************************************************/
124typedef aio_cb *aio_req_ornot;
125 302
126enum { 303/* helper: set scalar to foreign ptr with custom free */
127 PRI_MIN = -4, 304ecb_noinline
128 PRI_MAX = 4, 305static void
129 306sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
130 DEFAULT_PRI = 0,
131 PRI_BIAS = -PRI_MIN,
132 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
133};
134
135static int next_pri = DEFAULT_PRI + PRI_BIAS;
136
137static unsigned int started, wanted;
138static volatile unsigned int nreqs;
139static volatile unsigned int max_outstanding = 0xffffffff;
140static int respipe [2];
141
142#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
143# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
144#else
145# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
146#endif
147
148#define LOCK(mutex) pthread_mutex_lock (&(mutex))
149#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
150
151/* worker threads management */
152static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
153
154typedef struct worker {
155 /* locked by wrklock */
156 struct worker *prev, *next;
157
158 pthread_t tid;
159
160 /* locked by reslock, reqlock or wrklock */
161 aio_req req; /* currently processed request */
162 void *dbuf;
163 DIR *dirp;
164} worker;
165
166static worker wrk_first = { &wrk_first, &wrk_first, 0 };
167
168static void worker_clear (worker *wrk)
169{ 307{
170 if (wrk->dirp) 308 sv_force_normal (sv);
309
310 /* we store the length in mg_obj, as namlen is I32 :/ */
311 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
312 ->mg_obj = (SV *)length;
313
314 SvUPGRADE (sv, SVt_PV); /* nop... */
315
316 if (SvLEN (sv))
317 Safefree (SvPVX (sv));
318
319 SvPVX (sv) = (char *)addr;
320 SvCUR_set (sv, length);
321 SvLEN_set (sv, 0);
322 SvPOK_only (sv);
323}
324
325static void
326sv_clear_foreign (SV *sv)
327{
328 /* todo: iterate over magic and only free ours, but of course */
329 /* the perl5porters will call that (correct) behaviour buggy */
330 sv_unmagic (sv, FOREIGN_MAGIC);
331}
332
333/*****************************************************************************/
334
335/* defines all sorts of constants to 0 unless they are already defined */
336/* also provides const_iv_ and const_niv_ macros for them */
337#include "def0.h"
338
339/*****************************************************************************/
340
341static void
342fiemap (eio_req *req)
343{
344 req->result = -1;
345
346#if HAVE_FIEMAP
347 /* assume some c99 */
348 struct fiemap *fiemap = 0;
349 size_t end_offset;
350 int count = req->int3;
351
352 req->flags |= EIO_FLAG_PTR1_FREE;
353
354 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
355 /* increase in fixed steps */
356 if (count < 0)
357 count = 8;
358
359 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
360 errno = ENOMEM;
361 if (!fiemap)
362 return;
363
364 req->ptr1 = fiemap;
365
366 fiemap->fm_start = req->offs;
367 fiemap->fm_length = req->size;
368 fiemap->fm_flags = req->int2;
369 fiemap->fm_extent_count = count;
370
371 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
372 return;
373
374 if (req->int3 >= 0 /* not autosizing */
375 || !fiemap->fm_mapped_extents /* no more extents */
376 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
377 goto done;
378
379 /* else we have to loop -
380 * it would be tempting (actually I tried that first) to just query the
381 * number of extents needed, but linux often feels like not returning all
382 * extents, without telling us it left any out. this complicates
383 * this quite a bit.
384 */
385
386 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
387
388 for (;;)
171 { 389 {
172 closedir (wrk->dirp); 390 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
173 wrk->dirp = 0; 391 char scratch[3072];
174 } 392 struct fiemap *incmap = (struct fiemap *)scratch;
175 393
176 if (wrk->dbuf) 394 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
177 { 395 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
178 free (wrk->dbuf); 396 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
179 wrk->dbuf = 0; 397 incmap->fm_flags = fiemap->fm_flags;
180 } 398 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
181}
182 399
183static void worker_free (worker *wrk) 400 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
184{
185 wrk->next->prev = wrk->prev;
186 wrk->prev->next = wrk->next;
187
188 free (wrk);
189}
190
191static pthread_mutex_t reslock = AIO_MUTEX_INIT;
192static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
193static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
194
195/*
196 * a somewhat faster data structure might be nice, but
197 * with 8 priorities this actually needs <20 insns
198 * per shift, the most expensive operation.
199 */
200typedef struct {
201 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
202 int size;
203} reqq;
204
205static reqq req_queue;
206static reqq res_queue;
207
208int reqq_push (reqq *q, aio_req req)
209{
210 int pri = req->pri;
211 req->next = 0;
212
213 if (q->qe[pri])
214 {
215 q->qe[pri]->next = req;
216 q->qe[pri] = req;
217 }
218 else
219 q->qe[pri] = q->qs[pri] = req;
220
221 return q->size++;
222}
223
224aio_req reqq_shift (reqq *q)
225{
226 int pri;
227
228 if (!q->size)
229 return 0; 401 return;
230 402
231 --q->size; 403 if (!incmap->fm_mapped_extents)
404 goto done;
232 405
233 for (pri = NUM_PRI; pri--; ) 406 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
234 { 407 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
235 aio_req req = q->qs[pri]; 408 errno = ENOMEM;
236
237 if (req) 409 if (!fiemap)
410 return;
411
412 req->ptr1 = fiemap;
413
414 for (count = 0; count < incmap->fm_mapped_extents; ++count)
238 { 415 {
239 if (!(q->qs[pri] = req->next)) 416 struct fiemap_extent *e = incmap->fm_extents + count;
240 q->qe[pri] = 0;
241 417
242 return req; 418 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
419
420 if (e->fe_logical >= end_offset)
421 goto done;
422
423 if (e->fe_flags & FIEMAP_EXTENT_LAST)
424 goto done;
425
243 } 426 }
244 } 427 }
245 428
246 abort (); 429done:
247} 430 req->result = 0;
248 431
249static int poll_cb (int max); 432#else
250static void req_invoke (aio_req req); 433 errno = ENOSYS;
434#endif
435}
436
437/*****************************************************************************/
438
439static int close_fd; /* dummy fd to close fds via dup2 */
440
441#if HAVE_STATX
442static struct statx stx;
443#define statx_offsetof(member) offsetof (struct statx, member)
444#define eio__statx statx
445#else
446#define statx_offsetof(member) 0
447#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
448#endif
449
450enum {
451 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
452};
453
454typedef eio_req *aio_req;
455typedef eio_req *aio_req_ornot;
456typedef eio_wd aio_wd;
457
458static SV *on_next_submit;
459static int next_pri = EIO_PRI_DEFAULT;
460static int max_outstanding;
461
462static s_epipe respipe;
463
251static void req_free (aio_req req); 464static void req_destroy (aio_req req);
252static void req_cancel (aio_req req); 465static void req_cancel (aio_req req);
253 466
467static void
468want_poll (void)
469{
470 /* write a dummy byte to the pipe so fh becomes ready */
471 s_epipe_signal (&respipe);
472}
473
474static void
475done_poll (void)
476{
477 /* read any signals sent by the worker threads */
478 s_epipe_drain (&respipe);
479}
480
254/* must be called at most once */ 481/* must be called at most once */
255static SV *req_sv (aio_req req, const char *klass) 482ecb_noinline
483static SV *
484req_sv (aio_req req, HV *stash)
256{ 485{
257 if (!req->self) 486 if (!req->self)
258 { 487 {
259 req->self = (SV *)newHV (); 488 req->self = (SV *)newHV ();
260 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 489 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
261 } 490 }
262 491
263 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 492 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
264} 493}
265 494
266static aio_req SvAIO_REQ (SV *sv) 495static SV *
496newSVaio_wd (aio_wd wd)
497{
498 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
499}
500
501ecb_noinline
502static aio_req
503SvAIO_REQ (SV *sv)
267{ 504{
268 MAGIC *mg; 505 MAGIC *mg;
269 506
270 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 507 if (!SvROK (sv)
508 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
509 || (SvSTASH (SvRV (sv)) != aio_grp_stash
510 && SvSTASH (SvRV (sv)) != aio_req_stash
511 && !sv_derived_from (sv, "IO::AIO::REQ")))
271 croak ("object of class " AIO_REQ_KLASS " expected"); 512 croak ("object of class IO::AIO::REQ expected");
272 513
273 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 514 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
274 515
275 return mg ? (aio_req)mg->mg_ptr : 0; 516 return mg ? (aio_req)mg->mg_ptr : 0;
276} 517}
277 518
519static aio_wd
520SvAIO_WD (SV *sv)
521{
522 if (!SvROK (sv)
523 || SvTYPE (SvRV (sv)) != SVt_PVMG
524 || SvSTASH (SvRV (sv)) != aio_wd_stash)
525 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
526
527 return (aio_wd)(long)SvIVX (SvRV (sv));
528}
529
530static SV *
531newmortalFH (int fd, int flags)
532{
533 if (fd < 0)
534 return &PL_sv_undef;
535
536 GV *gv = (GV *)sv_newmortal ();
537 char sym[64];
538 int symlen;
539
540 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
541 gv_init (gv, aio_stash, sym, symlen, 0);
542
543 symlen = snprintf (
544 sym,
545 sizeof (sym),
546 "%s&=%d",
547 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
548 fd
549 );
550
551 return do_open (gv, sym, symlen, 0, 0, 0, 0)
552 ? (SV *)gv : &PL_sv_undef;
553}
554
555static void
278static void aio_grp_feed (aio_req grp) 556aio_grp_feed (aio_req grp)
279{ 557{
280 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 558 if (grp->sv2 && SvOK (grp->sv2))
281 { 559 {
282 int old_len = grp->length;
283
284 if (grp->fh2 && SvOK (grp->fh2))
285 {
286 dSP; 560 dSP;
287 561
288 ENTER; 562 ENTER;
289 SAVETMPS; 563 SAVETMPS;
290 PUSHMARK (SP); 564 PUSHMARK (SP);
291 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 565 XPUSHs (req_sv (grp, aio_grp_stash));
292 PUTBACK; 566 PUTBACK;
293 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 567 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
294 SPAGAIN; 568 SPAGAIN;
295 FREETMPS; 569 FREETMPS;
296 LEAVE; 570 LEAVE;
297 }
298
299 /* stop if no progress has been made */
300 if (old_len == grp->length)
301 {
302 SvREFCNT_dec (grp->fh2);
303 grp->fh2 = 0;
304 break;
305 }
306 } 571 }
307} 572}
308 573
309static void aio_grp_dec (aio_req grp) 574ecb_noinline
575static void
576req_submit (eio_req *req)
310{ 577{
311 --grp->length; 578 eio_submit (req);
312 579
313 /* call feeder, if applicable */ 580 if (expect_false (on_next_submit))
314 aio_grp_feed (grp);
315
316 /* finish, if done */
317 if (!grp->length && grp->fd)
318 { 581 {
319 req_invoke (grp); 582 dSP;
320 req_free (grp); 583 SV *cb = sv_2mortal (on_next_submit);
584
585 on_next_submit = 0;
586
587 PUSHMARK (SP);
588 PUTBACK;
589 call_sv (cb, G_DISCARD | G_EVAL);
321 } 590 }
322} 591}
323 592
324static void poll_wait () 593static int
594req_invoke (eio_req *req)
325{ 595{
326 fd_set rfd; 596 if (req->flags & FLAG_SV2_RO_OFF)
597 SvREADONLY_off (req->sv2);
327 598
328 while (nreqs) 599 if (!EIO_CANCELLED (req) && req->callback)
329 { 600 {
330 int size;
331#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
332 LOCK (reslock);
333#endif
334 size = res_queue.size;
335#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
336 UNLOCK (reslock);
337#endif
338
339 if (size)
340 return;
341
342 FD_ZERO(&rfd);
343 FD_SET(respipe [0], &rfd);
344
345 select (respipe [0] + 1, &rfd, 0, 0, 0);
346 }
347}
348
349static void req_invoke (aio_req req)
350{
351 dSP; 601 dSP;
352 602 static SV *sv_result_cache; /* caches the result integer SV */
353 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 603 SV *sv_result;
354 {
355 errno = req->errorno;
356 604
357 ENTER; 605 ENTER;
358 SAVETMPS; 606 SAVETMPS;
359 PUSHMARK (SP); 607 PUSHMARK (SP);
360 EXTEND (SP, 1); 608 EXTEND (SP, 1);
361 609
610 /* do not recreate the result IV from scratch each time */
611 if (expect_true (sv_result_cache))
612 {
613 sv_result = sv_result_cache; sv_result_cache = 0;
614 SvIV_set (sv_result, req->result);
615 SvIOK_only (sv_result);
616 }
617 else
618 {
619 sv_result = newSViv (req->result);
620 SvREADONLY_on (sv_result);
621 }
622
362 switch (req->type) 623 switch (req->type)
363 { 624 {
625 case EIO_WD_OPEN:
626 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
627 break;
628
364 case REQ_READDIR: 629 case EIO_READDIR:
365 { 630 {
366 SV *rv = &PL_sv_undef; 631 SV *rv = &PL_sv_undef;
367 632
368 if (req->result >= 0) 633 if (req->result >= 0)
369 { 634 {
370 int i; 635 int i;
371 char *buf = req->data2ptr; 636 char *names = (char *)req->ptr2;
637 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
372 AV *av = newAV (); 638 AV *av = newAV ();
373 639
374 av_extend (av, req->result - 1); 640 av_extend (av, req->result - 1);
375 641
376 for (i = 0; i < req->result; ++i) 642 for (i = 0; i < req->result; ++i)
377 { 643 {
378 SV *sv = newSVpv (buf, 0); 644 if (req->int1 & EIO_READDIR_DENTS)
645 {
646 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
379 647
648 if (req->int1 & EIO_READDIR_CUSTOM2)
649 {
650 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
651 AV *avent = newAV ();
652
653 av_extend (avent, 2);
654
655 if (!sv_type [ent->type])
656 {
657 sv_type [ent->type] = newSViv (ent->type);
658 SvREADONLY_on (sv_type [ent->type]);
659 }
660
661 av_store (avent, 0, namesv);
662 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
663 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
664
665 av_store (av, i, newRV_noinc ((SV *)avent));
666 }
667 else
380 av_store (av, i, sv); 668 av_store (av, i, namesv);
669
670 ++ent;
671 }
672 else
673 {
674 SV *name = newSVpv (names, 0);
675 av_store (av, i, name);
381 buf += SvCUR (sv) + 1; 676 names += SvCUR (name) + 1;
677 }
382 } 678 }
383 679
384 rv = sv_2mortal (newRV_noinc ((SV *)av)); 680 rv = sv_2mortal (newRV_noinc ((SV *)av));
385 } 681 }
386 682
387 PUSHs (rv); 683 PUSHs (rv);
684
685 if (req->int1 & EIO_READDIR_CUSTOM1)
686 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
388 } 687 }
389 break; 688 break;
390 689
391 case REQ_OPEN: 690 case EIO_OPEN:
691 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
692 break;
693
694 case EIO_STATVFS:
695 case EIO_FSTATVFS:
392 { 696 {
393 /* convert fd to fh */ 697 SV *rv = &PL_sv_undef;
394 SV *fh; 698
699#ifndef _WIN32
700 if (req->result >= 0)
701 {
702 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
703 HV *hv = newHV ();
704 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
705 * chooses to make it a struct.
706 */
707 unsigned long fsid = 0;
708 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
395 709
396 PUSHs (sv_2mortal (newSViv (req->result))); 710 rv = sv_2mortal (newRV_noinc ((SV *)hv));
397 PUTBACK;
398 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
399 SPAGAIN;
400 711
401 fh = SvREFCNT_inc (POPs); 712 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
713 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
714 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
715 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
716 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
717 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
718 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
719 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
720 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
721 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
722 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
723 }
724#endif
402 725
403 PUSHMARK (SP); 726 PUSHs (rv);
404 XPUSHs (sv_2mortal (fh));
405 } 727 }
728
406 break; 729 break;
407 730
408 case REQ_GROUP: 731 case EIO_GROUP:
409 req->fd = 2; /* mark group as finished */ 732 req->int1 = 2; /* mark group as finished */
410 733
411 if (req->data) 734 if (req->sv1)
412 { 735 {
413 int i; 736 int i;
414 AV *av = (AV *)req->data; 737 AV *av = (AV *)req->sv1;
415 738
416 EXTEND (SP, AvFILL (av) + 1); 739 EXTEND (SP, AvFILL (av) + 1);
417 for (i = 0; i <= AvFILL (av); ++i) 740 for (i = 0; i <= AvFILL (av); ++i)
418 PUSHs (*av_fetch (av, i, 0)); 741 PUSHs (*av_fetch (av, i, 0));
419 } 742 }
420 break; 743 break;
421 744
422 case REQ_NOP: 745 case EIO_NOP:
423 case REQ_BUSY: 746 case EIO_BUSY:
424 break; 747 break;
425 748
749 case EIO_READLINK:
750 case EIO_REALPATH:
751 if (req->result > 0)
752 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
753 break;
754
755 case EIO_STAT:
756 case EIO_LSTAT:
757 case EIO_FSTAT:
758 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
759
760 if (!(PL_laststatval = req->result))
761 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
762 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
763
764 PUSHs (sv_result);
765 break;
766
767 case EIO_SEEK:
768 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
769 break;
770
771 case EIO_READ:
772 {
773 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
774 *SvEND (req->sv2) = 0;
775 SvPOK_only (req->sv2);
776 SvSETMAGIC (req->sv2);
777 PUSHs (sv_result);
778 }
779 break;
780
781 case EIO_SLURP:
782 {
783 if (req->result >= 0)
784 {
785 /* if length was originally not known, we steal the malloc'ed memory */
786 if (req->flags & EIO_FLAG_PTR2_FREE)
787 {
788 req->flags &= ~EIO_FLAG_PTR2_FREE;
789 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
790 }
791 else
792 {
793 SvCUR_set (req->sv2, req->result);
794 *SvEND (req->sv2) = 0;
795 SvPOK_only (req->sv2);
796 }
797
798 SvSETMAGIC (req->sv2);
799 }
800
801 PUSHs (sv_result);
802 }
803 break;
804
805 case EIO_CUSTOM:
806 if (req->feed == fiemap)
807 {
808#if HAVE_FIEMAP
809 if (!req->result)
810 {
811 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
812
813 if (fiemap->fm_extent_count)
814 {
815 AV *av = newAV ();
816 int i;
817
818 while (fiemap->fm_mapped_extents)
819 {
820 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
821 AV *ext_av = newAV ();
822
823 av_store (ext_av, 3, newSVuv (extent->fe_flags));
824 av_store (ext_av, 2, newSVval64 (extent->fe_length));
825 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
826 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
827
828 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
829 }
830
831 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
832 }
833 else
834 {
835 SvIV_set (sv_result, fiemap->fm_mapped_extents);
836 PUSHs (sv_result);
837 }
838 }
839#endif
840 }
841 else
842 PUSHs (sv_result);
843 break;
844
845#if 0
846 case EIO_CLOSE:
847 PerlIOUnix_refcnt_dec (req->int1);
848 break;
849#endif
850
851 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
852 if (req->result > 0)
853 SvIV_set (sv_result, 0);
854 /* FALLTHROUGH */
855
426 default: 856 default:
427 PUSHs (sv_2mortal (newSViv (req->result))); 857 PUSHs (sv_result);
428 break; 858 break;
429 } 859 }
430 860
861 errno = req->errorno;
431 862
432 PUTBACK; 863 PUTBACK;
433 call_sv (req->callback, G_VOID | G_EVAL); 864 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
434 SPAGAIN; 865 SPAGAIN;
866
867 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
868 SvREFCNT_dec (sv_result);
869 else
870 sv_result_cache = sv_result;
435 871
436 FREETMPS; 872 FREETMPS;
437 LEAVE; 873 LEAVE;
874
875 PUTBACK;
438 } 876 }
439 877
440 if (req->grp) 878 return !!SvTRUE (ERRSV);
441 {
442 aio_req grp = req->grp;
443
444 /* unlink request */
445 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
446 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
447
448 if (grp->grp_first == req)
449 grp->grp_first = req->grp_next;
450
451 aio_grp_dec (grp);
452 }
453
454 if (SvTRUE (ERRSV))
455 {
456 req_free (req);
457 croak (0);
458 }
459} 879}
460 880
461static void req_free (aio_req req) 881static void
882req_destroy (aio_req req)
462{ 883{
463 if (req->self) 884 if (req->self)
464 { 885 {
465 sv_unmagic (req->self, PERL_MAGIC_ext); 886 sv_unmagic (req->self, PERL_MAGIC_ext);
466 SvREFCNT_dec (req->self); 887 SvREFCNT_dec (req->self);
467 } 888 }
468 889
469 SvREFCNT_dec (req->data);
470 SvREFCNT_dec (req->fh); 890 SvREFCNT_dec (req->sv1);
471 SvREFCNT_dec (req->fh2); 891 SvREFCNT_dec (req->sv2);
892 SvREFCNT_dec (req->sv3);
893 SvREFCNT_dec (req->sv4);
472 SvREFCNT_dec (req->callback); 894 SvREFCNT_dec (req->callback);
473 Safefree (req->statdata);
474 895
475 if (req->type == REQ_READDIR)
476 free (req->data2ptr);
477
478 Safefree (req); 896 free (req);
479} 897}
480 898
899static void
481static void req_cancel_subs (aio_req grp) 900req_cancel_subs (aio_req grp)
482{ 901{
483 aio_req sub;
484
485 if (grp->type != REQ_GROUP) 902 if (grp->type != EIO_GROUP)
486 return; 903 return;
487 904
488 SvREFCNT_dec (grp->fh2); 905 SvREFCNT_dec (grp->sv2);
489 grp->fh2 = 0; 906 grp->sv2 = 0;
490 907
491 for (sub = grp->grp_first; sub; sub = sub->grp_next) 908 eio_grp_cancel (grp);
492 req_cancel (sub);
493} 909}
494 910
495static void req_cancel (aio_req req) 911ecb_cold
912static void
913create_respipe (void)
496{ 914{
497 req->flags |= FLAG_CANCELLED; 915 if (s_epipe_renew (&respipe))
498 916 croak ("IO::AIO: unable to initialize result pipe");
499 req_cancel_subs (req);
500} 917}
501 918
502static int poll_cb (int max) 919static void
920poll_wait (void)
503{ 921{
504 dSP; 922 while (eio_nreqs ())
505 int count = 0; 923 {
506 int do_croak = 0; 924 int size;
507 aio_req req;
508 925
926 X_LOCK (EIO_POOL->reslock);
927 size = EIO_POOL->res_queue.size;
928 X_UNLOCK (EIO_POOL->reslock);
929
930 if (size)
931 return;
932
933 etp_maybe_start_thread (EIO_POOL);
934
935 s_epipe_wait (&respipe);
936 }
937}
938
939static int
940poll_cb (void)
941{
509 for (;;) 942 for (;;)
510 { 943 {
511 while (max <= 0 || count < max) 944 int res = eio_poll ();
945
946 if (res > 0)
947 croak (0);
948
949 if (!max_outstanding || max_outstanding > eio_nreqs ())
950 return res;
951
952 poll_wait ();
953 }
954}
955
956ecb_cold
957static void
958reinit (void)
959{
960 create_respipe ();
961
962 if (eio_init (want_poll, done_poll) < 0)
963 croak ("IO::AIO: unable to initialise eio library");
964}
965
966/*****************************************************************************/
967
968static SV *
969get_cb (SV *cb_sv)
970{
971 SvGETMAGIC (cb_sv);
972 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
973}
974
975ecb_noinline
976static aio_req ecb_noinline
977dreq (SV *callback)
978{
979 SV *cb_cv;
980 aio_req req;
981 int req_pri = next_pri;
982 next_pri = EIO_PRI_DEFAULT;
983
984 cb_cv = get_cb (callback);
985
986 req = calloc (sizeof (*req), 1);
987 if (!req)
988 croak ("out of memory during eio_req allocation");
989
990 req->callback = SvREFCNT_inc (cb_cv);
991 req->pri = req_pri;
992
993 return req;
994}
995
996#define dREQ \
997 aio_req req = dreq (callback); \
998
999#define REQ_SEND \
1000 PUTBACK; \
1001 req_submit (req); \
1002 SPAGAIN; \
1003 \
1004 if (GIMME_V != G_VOID) \
1005 XPUSHs (req_sv (req, aio_req_stash));
1006
1007/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1008ecb_inline
1009void
1010req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1011{
1012 if (expect_false (SvROK (path)))
1013 {
1014 SV *rv = SvRV (path);
1015 SV *wdob;
1016
1017 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
512 { 1018 {
513 LOCK (reslock); 1019 path = AvARRAY (rv)[1];
514 req = reqq_shift (&res_queue); 1020 wdob = AvARRAY (rv)[0];
515 1021
516 if (req) 1022 if (SvOK (wdob))
517 { 1023 {
518 if (!res_queue.size) 1024 *wd = SvAIO_WD (wdob);
519 { 1025 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
520 /* read any signals sent by the worker threads */
521 char buf [32];
522 while (read (respipe [0], buf, 32) == 32)
523 ;
524 }
525 }
526
527 UNLOCK (reslock);
528
529 if (!req)
530 break;
531
532 --nreqs;
533
534 if (req->type == REQ_QUIT)
535 --started;
536 else if (req->type == REQ_GROUP && req->length)
537 {
538 req->fd = 1; /* mark request as delayed */
539 continue;
540 } 1026 }
541 else 1027 else
542 { 1028 *wd = EIO_INVALID_WD;
543 if (req->type == REQ_READ)
544 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
545
546 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
547 SvREADONLY_off (req->data);
548
549 if (req->statdata)
550 {
551 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
552 PL_laststatval = req->result;
553 PL_statcache = *(req->statdata);
554 }
555
556 req_invoke (req);
557
558 count++;
559 }
560
561 req_free (req);
562 } 1029 }
1030 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
1031 {
1032 *wd = (aio_wd)(long)SvIVX (rv);
1033 *wdsv = SvREFCNT_inc_NN (rv);
1034 *ptr = ".";
1035 return; /* path set to "." */
1036 }
1037 else
1038 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
1039 }
563 1040
564 if (nreqs <= max_outstanding) 1041 *pathsv = newSVsv (path);
1042 *ptr = SvPVbyte_nolen (*pathsv);
1043}
1044
1045ecb_noinline
1046static void
1047req_set_path1 (aio_req req, SV *path)
1048{
1049 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
1050}
1051
1052ecb_noinline
1053static void
1054req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1055{
1056 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
1057
1058 switch (SvTYPE (rv))
1059 {
1060 case SVt_PVIO:
1061 case SVt_PVLV:
1062 case SVt_PVGV:
1063 req->type = type_fh;
1064 req->sv1 = newSVsv (fh_or_path);
1065 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
565 break; 1066 break;
566 1067
567 poll_wait (); 1068 default:
568 1069 req->type = type_path;
569 max = 0; 1070 req_set_path1 (req, fh_or_path);
1071 break;
570 } 1072 }
571
572 return count;
573}
574
575static void *aio_proc(void *arg);
576
577static void start_thread (void)
578{
579 sigset_t fullsigset, oldsigset;
580 pthread_attr_t attr;
581
582 worker *wrk = calloc (1, sizeof (worker));
583
584 if (!wrk)
585 croak ("unable to allocate worker thread data");
586
587 pthread_attr_init (&attr);
588 pthread_attr_setstacksize (&attr, STACKSIZE);
589 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
590
591 sigfillset (&fullsigset);
592
593 LOCK (wrklock);
594 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
595
596 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
597 {
598 wrk->prev = &wrk_first;
599 wrk->next = wrk_first.next;
600 wrk_first.next->prev = wrk;
601 wrk_first.next = wrk;
602 ++started;
603 }
604 else
605 free (wrk);
606
607 sigprocmask (SIG_SETMASK, &oldsigset, 0);
608 UNLOCK (wrklock);
609}
610
611static void req_send (aio_req req)
612{
613 while (started < wanted && nreqs >= started)
614 start_thread ();
615
616 ++nreqs;
617
618 LOCK (reqlock);
619 reqq_push (&req_queue, req);
620 pthread_cond_signal (&reqwait);
621 UNLOCK (reqlock);
622}
623
624static void end_thread (void)
625{
626 aio_req req;
627
628 Newz (0, req, 1, aio_cb);
629
630 req->type = REQ_QUIT;
631 req->pri = PRI_MAX + PRI_BIAS;
632
633 req_send (req);
634}
635
636static void min_parallel (int nthreads)
637{
638 if (wanted < nthreads)
639 wanted = nthreads;
640}
641
642static void max_parallel (int nthreads)
643{
644 int cur = started;
645
646 if (wanted > nthreads)
647 wanted = nthreads;
648
649 while (cur > wanted)
650 {
651 end_thread ();
652 cur--;
653 }
654
655 while (started > wanted)
656 {
657 poll_wait ();
658 poll_cb (0);
659 }
660}
661
662static void create_pipe ()
663{
664 if (pipe (respipe))
665 croak ("unable to initialize result pipe");
666
667 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
668 croak ("cannot set result pipe to nonblocking mode");
669
670 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
671 croak ("cannot set result pipe to nonblocking mode");
672} 1073}
673 1074
674/*****************************************************************************/ 1075/*****************************************************************************/
675/* work around various missing functions */
676 1076
677#if !HAVE_PREADWRITE 1077static void
678# define pread aio_pread 1078ts_set (struct timespec *ts, NV value)
679# define pwrite aio_pwrite
680
681/*
682 * make our pread/pwrite safe against themselves, but not against
683 * normal read/write by using a mutex. slows down execution a lot,
684 * but that's your problem, not mine.
685 */
686static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
687
688static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
689{ 1079{
690 ssize_t res; 1080 ts->tv_sec = value;
691 off_t ooffset; 1081 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
692
693 LOCK (preadwritelock);
694 ooffset = lseek (fd, 0, SEEK_CUR);
695 lseek (fd, offset, SEEK_SET);
696 res = read (fd, buf, count);
697 lseek (fd, ooffset, SEEK_SET);
698 UNLOCK (preadwritelock);
699
700 return res;
701} 1082}
702 1083
703static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1084static NV
1085ts_get (const struct timespec *ts)
704{ 1086{
705 ssize_t res; 1087 return ts->tv_sec + ts->tv_nsec * 1e-9;
706 off_t ooffset;
707
708 LOCK (preadwritelock);
709 ooffset = lseek (fd, 0, SEEK_CUR);
710 lseek (fd, offset, SEEK_SET);
711 res = write (fd, buf, count);
712 lseek (fd, offset, SEEK_SET);
713 UNLOCK (preadwritelock);
714
715 return res;
716} 1088}
717#endif
718 1089
719#if !HAVE_FDATASYNC 1090/*****************************************************************************/
720# define fdatasync fsync
721#endif
722 1091
723#if !HAVE_READAHEAD 1092XS(boot_IO__AIO) ecb_cold;
724# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
725 1093
726static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 1094MODULE = IO::AIO PACKAGE = IO::AIO
727{
728 dBUF;
729 1095
730 while (count > 0) 1096PROTOTYPES: ENABLE
731 {
732 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
733 1097
734 pread (fd, aio_buf, len, offset); 1098BOOT:
735 offset += len;
736 count -= len;
737 }
738
739 errno = 0;
740}
741
742#endif
743
744#if !HAVE_READDIR_R
745# define readdir_r aio_readdir_r
746
747static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
748
749static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
750{ 1099{
751 struct dirent *e; 1100 static const struct {
752 int errorno; 1101 const char *name;
1102 IV iv;
1103 } *civ, const_iv[] = {
1104# define const_niv(name, value) { # name, (IV) value },
1105# define const_iv(name) { # name, (IV) name },
1106# define const_eio(name) { # name, (IV) EIO_ ## name },
753 1107
754 LOCK (readdirlock); 1108 /* you have to re-run ./gendef0 after adding/removing any constants here */
1109 /* the first block can be undef if missing */
1110 const_iv (ENOSYS)
1111 const_iv (EXDEV)
1112 const_iv (EBADR)
755 1113
756 e = readdir (dirp); 1114 /* for lseek */
757 errorno = errno; 1115 const_iv (SEEK_DATA)
1116 const_iv (SEEK_HOLE)
758 1117
759 if (e) 1118 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
760 { 1119 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
761 *res = ent; 1120 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
762 strcpy (ent->d_name, e->d_name); 1121 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
763 } 1122 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
764 else 1123 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
765 *res = 0;
766 1124
767 UNLOCK (readdirlock); 1125 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1126 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1127 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1128 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1129 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
768 1130
769 errno = errorno; 1131 /* the second block will be 0 when missing */
770 return e ? 0 : -1; 1132 const_iv (O_ACCMODE)
771}
772#endif
773 1133
774/* sendfile always needs emulation */ 1134 const_iv (O_RDONLY)
775static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) 1135 const_iv (O_WRONLY)
776{ 1136 const_iv (O_RDWR)
777 ssize_t res; 1137 const_iv (O_CREAT)
1138 const_iv (O_TRUNC)
1139 const_iv (O_EXCL)
1140 const_iv (O_APPEND)
778 1141
779 if (!count) 1142 const_iv (O_ASYNC)
780 return 0; 1143 const_iv (O_DIRECT)
1144 const_iv (O_NOATIME)
781 1145
782#if HAVE_SENDFILE 1146 const_iv (O_CLOEXEC)
783# if __linux 1147 const_iv (O_NOCTTY)
784 res = sendfile (ofd, ifd, &offset, count); 1148 const_iv (O_NOFOLLOW)
1149 const_iv (O_NONBLOCK)
1150 const_iv (O_EXEC)
1151 const_iv (O_SEARCH)
1152 const_iv (O_DIRECTORY)
1153 const_iv (O_DSYNC)
1154 const_iv (O_RSYNC)
1155 const_iv (O_SYNC)
1156 const_iv (O_PATH)
1157 const_iv (O_TMPFILE)
1158 const_iv (O_TTY_INIT)
785 1159
786# elif __freebsd 1160 const_iv (S_IFIFO)
787 /* 1161 const_iv (S_IFCHR)
788 * Of course, the freebsd sendfile is a dire hack with no thoughts 1162 const_iv (S_IFBLK)
789 * wasted on making it similar to other I/O functions. 1163 const_iv (S_IFLNK)
790 */ 1164 const_iv (S_IFREG)
1165 const_iv (S_IFDIR)
1166 const_iv (S_IFWHT)
1167 const_iv (S_IFSOCK)
1168 const_iv (S_IFMT)
1169
1170 const_iv (ST_RDONLY)
1171 const_iv (ST_NOSUID)
1172 const_iv (ST_NODEV)
1173 const_iv (ST_NOEXEC)
1174 const_iv (ST_SYNCHRONOUS)
1175 const_iv (ST_MANDLOCK)
1176 const_iv (ST_WRITE)
1177 const_iv (ST_APPEND)
1178 const_iv (ST_IMMUTABLE)
1179 const_iv (ST_NOATIME)
1180 const_iv (ST_NODIRATIME)
1181 const_iv (ST_RELATIME)
1182
1183 const_iv (PROT_NONE)
1184 const_iv (PROT_EXEC)
1185 const_iv (PROT_READ)
1186 const_iv (PROT_WRITE)
1187
1188 const_iv (MAP_PRIVATE)
1189 const_iv (MAP_SHARED)
1190 const_iv (MAP_FIXED)
1191 const_iv (MAP_ANONYMOUS)
1192
1193 /* linuxish */
1194 const_iv (MAP_LOCKED)
1195 const_iv (MAP_NORESERVE)
1196 const_iv (MAP_POPULATE)
1197 const_iv (MAP_NONBLOCK)
1198 const_iv (MAP_GROWSDOWN)
1199 const_iv (MAP_32BIT)
1200 const_iv (MAP_HUGETLB)
1201 const_iv (MAP_STACK)
1202
1203 const_iv (MREMAP_MAYMOVE)
1204 const_iv (MREMAP_FIXED)
1205
1206 const_iv (MSG_CMSG_CLOEXEC)
1207 const_iv (SOCK_CLOEXEC)
1208
1209 const_iv (F_DUPFD_CLOEXEC)
1210
1211 const_iv (F_ADD_SEALS)
1212 const_iv (F_GET_SEALS)
1213 const_iv (F_SEAL_SEAL)
1214 const_iv (F_SEAL_SHRINK)
1215 const_iv (F_SEAL_GROW)
1216 const_iv (F_SEAL_WRITE)
1217
1218 const_iv (F_OFD_GETLK)
1219 const_iv (F_OFD_SETLK)
1220 const_iv (F_OFD_GETLKW)
1221
1222 const_iv (FIFREEZE)
1223 const_iv (FITHAW)
1224 const_iv (FITRIM)
1225 const_iv (FICLONE)
1226 const_iv (FICLONERANGE)
1227 const_iv (FIDEDUPERANGE)
1228
1229 const_iv (FS_IOC_GETFLAGS)
1230 const_iv (FS_IOC_SETFLAGS)
1231 const_iv (FS_IOC_GETVERSION)
1232 const_iv (FS_IOC_SETVERSION)
1233 const_iv (FS_IOC_FIEMAP)
1234 const_iv (FS_IOC_FSGETXATTR)
1235 const_iv (FS_IOC_FSSETXATTR)
1236 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1237 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1238 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1239
1240 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1241
1242 const_iv (FS_SECRM_FL)
1243 const_iv (FS_UNRM_FL)
1244 const_iv (FS_COMPR_FL)
1245 const_iv (FS_SYNC_FL)
1246 const_iv (FS_IMMUTABLE_FL)
1247 const_iv (FS_APPEND_FL)
1248 const_iv (FS_NODUMP_FL)
1249 const_iv (FS_NOATIME_FL)
1250 const_iv (FS_DIRTY_FL)
1251 const_iv (FS_COMPRBLK_FL)
1252 const_iv (FS_NOCOMP_FL)
1253 const_iv (FS_ENCRYPT_FL)
1254 const_iv (FS_BTREE_FL)
1255 const_iv (FS_INDEX_FL)
1256 const_iv (FS_JOURNAL_DATA_FL)
1257 const_iv (FS_NOTAIL_FL)
1258 const_iv (FS_DIRSYNC_FL)
1259 const_iv (FS_TOPDIR_FL)
1260 const_iv (FS_FL_USER_MODIFIABLE)
1261
1262 const_iv (FS_XFLAG_REALTIME)
1263 const_iv (FS_XFLAG_PREALLOC)
1264 const_iv (FS_XFLAG_IMMUTABLE)
1265 const_iv (FS_XFLAG_APPEND)
1266 const_iv (FS_XFLAG_SYNC)
1267 const_iv (FS_XFLAG_NOATIME)
1268 const_iv (FS_XFLAG_NODUMP)
1269 const_iv (FS_XFLAG_RTINHERIT)
1270 const_iv (FS_XFLAG_PROJINHERIT)
1271 const_iv (FS_XFLAG_NOSYMLINKS)
1272 const_iv (FS_XFLAG_EXTSIZE)
1273 const_iv (FS_XFLAG_EXTSZINHERIT)
1274 const_iv (FS_XFLAG_NODEFRAG)
1275 const_iv (FS_XFLAG_FILESTREAM)
1276 const_iv (FS_XFLAG_DAX)
1277 const_iv (FS_XFLAG_HASATTR)
1278
1279 const_iv (FIEMAP_FLAG_SYNC)
1280 const_iv (FIEMAP_FLAG_XATTR)
1281 const_iv (FIEMAP_FLAGS_COMPAT)
1282 const_iv (FIEMAP_EXTENT_LAST)
1283 const_iv (FIEMAP_EXTENT_UNKNOWN)
1284 const_iv (FIEMAP_EXTENT_DELALLOC)
1285 const_iv (FIEMAP_EXTENT_ENCODED)
1286 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1287 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1288 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1289 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1290 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1291 const_iv (FIEMAP_EXTENT_MERGED)
1292 const_iv (FIEMAP_EXTENT_SHARED)
1293
1294 const_iv (SPLICE_F_MOVE)
1295 const_iv (SPLICE_F_NONBLOCK)
1296 const_iv (SPLICE_F_MORE)
1297 const_iv (SPLICE_F_GIFT)
1298
1299 const_iv (EFD_CLOEXEC)
1300 const_iv (EFD_NONBLOCK)
1301 const_iv (EFD_SEMAPHORE)
1302
1303 const_iv (MFD_CLOEXEC)
1304 const_iv (MFD_ALLOW_SEALING)
1305 const_iv (MFD_HUGETLB)
1306
1307 const_iv (CLOCK_REALTIME)
1308 const_iv (CLOCK_MONOTONIC)
1309 const_iv (CLOCK_BOOTTIME)
1310 const_iv (CLOCK_REALTIME_ALARM)
1311 const_iv (CLOCK_BOOTTIME_ALARM)
1312
1313 const_iv (TFD_NONBLOCK)
1314 const_iv (TFD_CLOEXEC)
1315
1316 const_iv (TFD_TIMER_ABSTIME)
1317 const_iv (TFD_TIMER_CANCEL_ON_SET)
1318
1319 const_iv (STATX_TYPE)
1320 const_iv (STATX_MODE)
1321 const_iv (STATX_NLINK)
1322 const_iv (STATX_UID)
1323 const_iv (STATX_GID)
1324 const_iv (STATX_ATIME)
1325 const_iv (STATX_MTIME)
1326 const_iv (STATX_CTIME)
1327 const_iv (STATX_INO)
1328 const_iv (STATX_SIZE)
1329 const_iv (STATX_BLOCKS)
1330 const_iv (STATX_BASIC_STATS)
1331 const_iv (STATX_ALL)
1332 const_iv (STATX_BTIME)
1333 const_iv (STATX_ATTR_COMPRESSED)
1334 const_iv (STATX_ATTR_IMMUTABLE)
1335 const_iv (STATX_ATTR_APPEND)
1336 const_iv (STATX_ATTR_NODUMP)
1337 const_iv (STATX_ATTR_ENCRYPTED)
1338 const_iv (STATX_ATTR_AUTOMOUNT)
1339
1340 const_iv (AT_FDCWD)
1341 const_iv (AT_SYMLINK_NOFOLLOW)
1342 const_iv (AT_EACCESS)
1343 const_iv (AT_REMOVEDIR)
1344 const_iv (AT_SYMLINK_FOLLOW)
1345 const_iv (AT_NO_AUTOMOUNT)
1346 const_iv (AT_EMPTY_PATH)
1347 const_iv (AT_STATX_SYNC_TYPE)
1348 const_iv (AT_STATX_AS_STAT)
1349 const_iv (AT_STATX_FORCE_SYNC)
1350 const_iv (AT_STATX_DONT_SYNC)
1351 const_iv (AT_RECURSIVE)
1352
1353 const_iv (OPEN_TREE_CLONE)
1354
1355 const_iv (FSOPEN_CLOEXEC)
1356
1357 const_iv (FSPICK_CLOEXEC)
1358 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1359 const_iv (FSPICK_NO_AUTOMOUNT)
1360 const_iv (FSPICK_EMPTY_PATH)
1361
1362 const_iv (MOVE_MOUNT_F_SYMLINKS)
1363 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1364 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1365 const_iv (MOVE_MOUNT_T_SYMLINKS)
1366 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1367 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1368
1369 /* these are libeio constants, and are independent of gendef0 */
1370 const_eio (SEEK_SET)
1371 const_eio (SEEK_CUR)
1372 const_eio (SEEK_END)
1373
1374 const_eio (MCL_FUTURE)
1375 const_eio (MCL_CURRENT)
1376 const_eio (MCL_ONFAULT)
1377
1378 const_eio (MS_ASYNC)
1379 const_eio (MS_INVALIDATE)
1380 const_eio (MS_SYNC)
1381
1382 const_eio (MT_MODIFY)
1383
1384 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1385 const_eio (SYNC_FILE_RANGE_WRITE)
1386 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1387
1388 const_eio (FALLOC_FL_KEEP_SIZE)
1389 const_eio (FALLOC_FL_PUNCH_HOLE)
1390 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1391 const_eio (FALLOC_FL_ZERO_RANGE)
1392 const_eio (FALLOC_FL_INSERT_RANGE)
1393 const_eio (FALLOC_FL_UNSHARE_RANGE)
1394
1395 const_eio (RENAME_NOREPLACE)
1396 const_eio (RENAME_EXCHANGE)
1397 const_eio (RENAME_WHITEOUT)
1398
1399 const_eio (READDIR_DENTS)
1400 const_eio (READDIR_DIRS_FIRST)
1401 const_eio (READDIR_STAT_ORDER)
1402 const_eio (READDIR_FOUND_UNKNOWN)
1403
1404 const_eio (DT_UNKNOWN)
1405 const_eio (DT_FIFO)
1406 const_eio (DT_CHR)
1407 const_eio (DT_DIR)
1408 const_eio (DT_BLK)
1409 const_eio (DT_REG)
1410 const_eio (DT_LNK)
1411 const_eio (DT_SOCK)
1412 const_eio (DT_WHT)
1413 };
1414
1415 aio_stash = gv_stashpv ("IO::AIO" , 1);
1416 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1417 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1418 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1419
1420 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1421 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1422
1423 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1424
1425 /* allocate dummy pipe fd for aio_close */
791 { 1426 {
792 off_t sbytes; 1427 int pipefd [2];
793 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
794 1428
795 if (res < 0 && sbytes) 1429 if (
796 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ 1430#ifdef _WIN32
797 res = sbytes; 1431 _pipe (pipefd, 1, _O_BINARY) < 0
1432#else
1433 pipe (pipefd) < 0
1434 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1435#endif
1436 || close (pipefd [1]) < 0
1437 )
1438 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1439
1440 close_fd = pipefd [0];
798 } 1441 }
799 1442
800# elif __hpux 1443 reinit ();
801 res = sendfile (ofd, ifd, offset, count, 0, 0);
802
803# elif __solaris
804 {
805 struct sendfilevec vec;
806 size_t sbytes;
807
808 vec.sfv_fd = ifd;
809 vec.sfv_flag = 0;
810 vec.sfv_off = offset;
811 vec.sfv_len = count;
812
813 res = sendfilev (ofd, &vec, 1, &sbytes);
814
815 if (res < 0 && sbytes)
816 res = sbytes;
817 }
818
819# endif
820#else
821 res = -1;
822 errno = ENOSYS;
823#endif
824
825 if (res < 0
826 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
827#if __solaris
828 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
829#endif
830 )
831 )
832 {
833 /* emulate sendfile. this is a major pain in the ass */
834 dBUF;
835
836 res = 0;
837
838 while (count)
839 {
840 ssize_t cnt;
841
842 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
843
844 if (cnt <= 0)
845 {
846 if (cnt && !res) res = -1;
847 break;
848 }
849
850 cnt = write (ofd, aio_buf, cnt);
851
852 if (cnt <= 0)
853 {
854 if (cnt && !res) res = -1;
855 break;
856 }
857
858 offset += cnt;
859 res += cnt;
860 count -= cnt;
861 }
862 }
863
864 return res;
865} 1444}
866 1445
867/* read a full directory */
868static void scandir_ (aio_req req, worker *self)
869{
870 DIR *dirp;
871 union
872 {
873 struct dirent d;
874 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
875 } *u;
876 struct dirent *entp;
877 char *name, *names;
878 int memlen = 4096;
879 int memofs = 0;
880 int res = 0;
881 int errorno;
882
883 LOCK (wrklock);
884 self->dirp = dirp = opendir (req->dataptr);
885 self->dbuf = u = malloc (sizeof (*u));
886 req->data2ptr = names = malloc (memlen);
887 UNLOCK (wrklock);
888
889 if (dirp && u && names)
890 for (;;)
891 {
892 errno = 0;
893 readdir_r (dirp, &u->d, &entp);
894
895 if (!entp)
896 break;
897
898 name = entp->d_name;
899
900 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
901 {
902 int len = strlen (name) + 1;
903
904 res++;
905
906 while (memofs + len > memlen)
907 {
908 memlen *= 2;
909 LOCK (wrklock);
910 req->data2ptr = names = realloc (names, memlen);
911 UNLOCK (wrklock);
912
913 if (!names)
914 break;
915 }
916
917 memcpy (names + memofs, name, len);
918 memofs += len;
919 }
920 }
921
922 if (errno)
923 res = -1;
924
925 req->result = res;
926}
927
928/*****************************************************************************/
929
930static void *aio_proc (void *thr_arg)
931{
932 aio_req req;
933 int type;
934 worker *self = (worker *)thr_arg;
935
936 do
937 {
938 LOCK (reqlock);
939
940 for (;;)
941 {
942 self->req = req = reqq_shift (&req_queue);
943
944 if (req)
945 break;
946
947 pthread_cond_wait (&reqwait, &reqlock);
948 }
949
950 UNLOCK (reqlock);
951
952 errno = 0; /* strictly unnecessary */
953 type = req->type; /* remember type for QUIT check */
954
955 if (!(req->flags & FLAG_CANCELLED))
956 switch (type)
957 {
958 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
959 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
960
961 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
962 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
963
964 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
965 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
966 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
967
968 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
969 case REQ_CLOSE: req->result = close (req->fd); break;
970 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
971 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
972 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
973 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
974 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
975
976 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
977 case REQ_FSYNC: req->result = fsync (req->fd); break;
978 case REQ_READDIR: scandir_ (req, self); break;
979
980 case REQ_BUSY:
981 {
982 struct timeval tv;
983
984 tv.tv_sec = req->fd;
985 tv.tv_usec = req->fd2;
986
987 req->result = select (0, 0, 0, 0, &tv);
988 }
989
990 case REQ_GROUP:
991 case REQ_NOP:
992 case REQ_QUIT:
993 break;
994
995 default:
996 req->result = ENOSYS;
997 break;
998 }
999
1000 req->errorno = errno;
1001
1002 LOCK (reslock);
1003
1004 if (!reqq_push (&res_queue, req))
1005 /* write a dummy byte to the pipe so fh becomes ready */
1006 write (respipe [1], &respipe, 1);
1007
1008 self->req = 0;
1009 worker_clear (self);
1010
1011 UNLOCK (reslock);
1012 }
1013 while (type != REQ_QUIT);
1014
1015 LOCK (wrklock);
1016 worker_free (self);
1017 UNLOCK (wrklock);
1018
1019 return 0;
1020}
1021
1022/*****************************************************************************/
1023
1024static void atfork_prepare (void)
1025{
1026 LOCK (wrklock);
1027 LOCK (reqlock);
1028 LOCK (reslock);
1029#if !HAVE_PREADWRITE
1030 LOCK (preadwritelock);
1031#endif
1032#if !HAVE_READDIR_R
1033 LOCK (readdirlock);
1034#endif
1035}
1036
1037static void atfork_parent (void)
1038{
1039#if !HAVE_READDIR_R
1040 UNLOCK (readdirlock);
1041#endif
1042#if !HAVE_PREADWRITE
1043 UNLOCK (preadwritelock);
1044#endif
1045 UNLOCK (reslock);
1046 UNLOCK (reqlock);
1047 UNLOCK (wrklock);
1048}
1049
1050static void atfork_child (void)
1051{
1052 aio_req prv;
1053
1054 while (prv = reqq_shift (&req_queue))
1055 req_free (prv);
1056
1057 while (prv = reqq_shift (&res_queue))
1058 req_free (prv);
1059
1060 while (wrk_first.next != &wrk_first)
1061 {
1062 worker *wrk = wrk_first.next;
1063
1064 if (wrk->req)
1065 req_free (wrk->req);
1066
1067 worker_clear (wrk);
1068 worker_free (wrk);
1069 }
1070
1071 started = 0;
1072 nreqs = 0;
1073
1074 close (respipe [0]);
1075 close (respipe [1]);
1076 create_pipe ();
1077
1078 atfork_parent ();
1079}
1080
1081#define dREQ \
1082 aio_req req; \
1083 int req_pri = next_pri; \
1084 next_pri = DEFAULT_PRI + PRI_BIAS; \
1085 \
1086 if (SvOK (callback) && !SvROK (callback)) \
1087 croak ("callback must be undef or of reference type"); \
1088 \
1089 Newz (0, req, 1, aio_cb); \
1090 if (!req) \
1091 croak ("out of memory during aio_req allocation"); \
1092 \
1093 req->callback = newSVsv (callback); \
1094 req->pri = req_pri
1095
1096#define REQ_SEND \
1097 req_send (req); \
1098 \
1099 if (GIMME_V != G_VOID) \
1100 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1101
1102MODULE = IO::AIO PACKAGE = IO::AIO
1103
1104PROTOTYPES: ENABLE
1105
1106BOOT:
1107{
1108 HV *stash = gv_stashpv ("IO::AIO", 1);
1109 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1110 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1111 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1112
1113 create_pipe ();
1114 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1115}
1116
1117void 1446void
1118min_parallel (int nthreads) 1447reinit ()
1119 PROTOTYPE: $ 1448 PROTOTYPE:
1120 1449
1121void 1450void
1122max_parallel (int nthreads) 1451max_poll_reqs (unsigned int nreqs)
1123 PROTOTYPE: $
1124
1125int
1126max_outstanding (int maxreqs)
1127 PROTOTYPE: $ 1452 PROTOTYPE: $
1128 CODE: 1453 CODE:
1129 RETVAL = max_outstanding; 1454 eio_set_max_poll_reqs (nreqs);
1455
1456void
1457max_poll_time (double nseconds)
1458 PROTOTYPE: $
1459 CODE:
1460 eio_set_max_poll_time (nseconds);
1461
1462void
1463min_parallel (unsigned int nthreads)
1464 PROTOTYPE: $
1465 CODE:
1466 eio_set_min_parallel (nthreads);
1467
1468void
1469max_parallel (unsigned int nthreads)
1470 PROTOTYPE: $
1471 CODE:
1472 eio_set_max_parallel (nthreads);
1473
1474void
1475max_idle (unsigned int nthreads)
1476 PROTOTYPE: $
1477 CODE:
1478 eio_set_max_idle (nthreads);
1479
1480void
1481idle_timeout (unsigned int seconds)
1482 PROTOTYPE: $
1483 CODE:
1484 eio_set_idle_timeout (seconds);
1485
1486void
1487max_outstanding (unsigned int maxreqs)
1488 PROTOTYPE: $
1489 CODE:
1130 max_outstanding = maxreqs; 1490 max_outstanding = maxreqs;
1131 OUTPUT:
1132 RETVAL
1133 1491
1134void 1492void
1135aio_open (pathname,flags,mode,callback=&PL_sv_undef) 1493aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1136 SV * pathname
1137 int flags
1138 int mode
1139 SV * callback
1140 PROTOTYPE: $$$;$
1141 PPCODE: 1494 PPCODE:
1142{ 1495{
1143 dREQ; 1496 dREQ;
1144 1497
1145 req->type = REQ_OPEN; 1498 req->type = EIO_WD_OPEN;
1146 req->data = newSVsv (pathname); 1499 req_set_path1 (req, pathname);
1147 req->dataptr = SvPVbyte_nolen (req->data);
1148 req->fd = flags;
1149 req->mode = mode;
1150 1500
1151 REQ_SEND; 1501 REQ_SEND;
1152} 1502}
1153 1503
1154void 1504void
1505aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1506 PPCODE:
1507{
1508 dREQ;
1509
1510 req->type = EIO_OPEN;
1511 req_set_path1 (req, pathname);
1512 req->int1 = flags;
1513 req->int2 = mode;
1514
1515 REQ_SEND;
1516}
1517
1518void
1155aio_close (fh,callback=&PL_sv_undef) 1519aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1156 SV * fh
1157 SV * callback
1158 PROTOTYPE: $;$
1159 ALIAS: 1520 ALIAS:
1160 aio_close = REQ_CLOSE
1161 aio_fsync = REQ_FSYNC 1521 aio_fsync = EIO_FSYNC
1162 aio_fdatasync = REQ_FDATASYNC 1522 aio_fdatasync = EIO_FDATASYNC
1523 aio_syncfs = EIO_SYNCFS
1163 PPCODE: 1524 PPCODE:
1164{ 1525{
1526 int fd = s_fileno_croak (fh, 0);
1165 dREQ; 1527 dREQ;
1166 1528
1167 req->type = ix; 1529 req->type = ix;
1168 req->fh = newSVsv (fh); 1530 req->sv1 = newSVsv (fh);
1169 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh))); 1531 req->int1 = fd;
1170 1532
1171 REQ_SEND (req); 1533 REQ_SEND;
1172} 1534}
1173 1535
1174void 1536void
1537aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1538 PPCODE:
1539{
1540 int fd = s_fileno_croak (fh, 0);
1541 dREQ;
1542
1543 req->type = EIO_SYNC_FILE_RANGE;
1544 req->sv1 = newSVsv (fh);
1545 req->int1 = fd;
1546 req->offs = offset;
1547 req->size = nbytes;
1548 req->int2 = flags;
1549
1550 REQ_SEND;
1551}
1552
1553void
1554aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1555 PPCODE:
1556{
1557 int fd = s_fileno_croak (fh, 0);
1558 dREQ;
1559
1560 req->type = EIO_FALLOCATE;
1561 req->sv1 = newSVsv (fh);
1562 req->int1 = fd;
1563 req->int2 = mode;
1564 req->offs = offset;
1565 req->size = len;
1566
1567 REQ_SEND;
1568}
1569
1570void
1571aio_close (SV *fh, SV *callback = &PL_sv_undef)
1572 PPCODE:
1573{
1574 int fd = s_fileno_croak (fh, 0);
1575 dREQ;
1576#if 0
1577 /* partially duplicate logic in s_fileno */
1578 SvGETMAGIC (fh);
1579
1580 if (SvROK (fh))
1581 {
1582 fh = SvRV (fh);
1583 SvGETMAGIC (fh);
1584 }
1585
1586 if (SvTYPE (fh) == SVt_PVGV)
1587 {
1588 /* perl filehandle */
1589 PerlIOUnix_refcnt_inc (fd);
1590 do_close ((GV *)fh, 1);
1591
1592 req->type = EIO_CLOSE;
1593 req->int1 = fd;
1594 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1595 }
1596 else
1597#endif
1598 {
1599 /* fd number */
1600 req->type = EIO_DUP2;
1601 req->int1 = close_fd;
1602 req->sv2 = newSVsv (fh);
1603 req->int2 = fd;
1604 }
1605
1606 REQ_SEND;
1607}
1608
1609void
1610aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1611 PPCODE:
1612{
1613 int fd = s_fileno_croak (fh, 0);
1614 dREQ;
1615
1616 req->type = EIO_SEEK;
1617 req->sv1 = newSVsv (fh);
1618 req->int1 = fd;
1619 req->offs = SvVAL64 (offset);
1620 req->int2 = whence;
1621
1622 REQ_SEND;
1623}
1624
1625void
1175aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef) 1626aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1176 SV * fh
1177 UV offset
1178 UV length
1179 SV * data
1180 UV dataoffset
1181 SV * callback
1182 ALIAS: 1627 ALIAS:
1183 aio_read = REQ_READ 1628 aio_read = EIO_READ
1184 aio_write = REQ_WRITE 1629 aio_write = EIO_WRITE
1185 PROTOTYPE: $$$$$;$
1186 PPCODE: 1630 PPCODE:
1187{ 1631{
1188 aio_req req;
1189 STRLEN svlen; 1632 STRLEN svlen;
1633 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1190 char *svptr = SvPVbyte (data, svlen); 1634 char *svptr = SvPVbyte (data, svlen);
1191 1635 UV len = SvUV (length);
1192 SvUPGRADE (data, SVt_PV);
1193 SvPOK_on (data);
1194 1636
1195 if (dataoffset < 0) 1637 if (dataoffset < 0)
1196 dataoffset += svlen; 1638 dataoffset += svlen;
1197 1639
1198 if (dataoffset < 0 || dataoffset > svlen) 1640 if (dataoffset < 0 || dataoffset > svlen)
1199 croak ("data offset outside of string"); 1641 croak ("dataoffset outside of data scalar");
1200 1642
1201 if (ix == REQ_WRITE) 1643 if (ix == EIO_WRITE)
1202 { 1644 {
1203 /* write: check length and adjust. */ 1645 /* write: check length and adjust. */
1204 if (length < 0 || length + dataoffset > svlen) 1646 if (!SvOK (length) || len + dataoffset > svlen)
1205 length = svlen - dataoffset; 1647 len = svlen - dataoffset;
1206 } 1648 }
1207 else 1649 else
1208 { 1650 {
1209 /* read: grow scalar as necessary */ 1651 /* read: check type and grow scalar as necessary */
1652 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1210 svptr = SvGROW (data, length + dataoffset); 1653 svptr = sv_grow (data, len + dataoffset + 1);
1654 else if (SvCUR (data) < len + dataoffset)
1655 croak ("length + dataoffset outside of scalar, and cannot grow");
1211 } 1656 }
1212
1213 if (length < 0)
1214 croak ("length must not be negative");
1215 1657
1216 { 1658 {
1217 dREQ; 1659 dREQ;
1218 1660
1219 req->type = ix; 1661 req->type = ix;
1220 req->fh = newSVsv (fh); 1662 req->sv1 = newSVsv (fh);
1221 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1663 req->int1 = fd;
1222 : IoOFP (sv_2io (fh))); 1664 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1223 req->offset = offset; 1665 req->size = len;
1224 req->length = length;
1225 req->data = SvREFCNT_inc (data); 1666 req->sv2 = SvREFCNT_inc (data);
1226 req->dataptr = (char *)svptr + dataoffset; 1667 req->ptr2 = (char *)svptr + dataoffset;
1668 req->stroffset = dataoffset;
1227 1669
1228 if (!SvREADONLY (data)) 1670 if (!SvREADONLY (data))
1229 { 1671 {
1230 SvREADONLY_on (data); 1672 SvREADONLY_on (data);
1231 req->data2ptr = (void *)data; 1673 req->flags |= FLAG_SV2_RO_OFF;
1232 } 1674 }
1233 1675
1234 REQ_SEND; 1676 REQ_SEND;
1235 } 1677 }
1236} 1678}
1237 1679
1238void 1680void
1239aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1681aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1240 SV * out_fh 1682 ALIAS:
1241 SV * in_fh 1683 aio_ioctl = EIO_IOCTL
1242 UV in_offset 1684 aio_fcntl = EIO_FCNTL
1243 UV length
1244 SV * callback
1245 PROTOTYPE: $$$$;$
1246 PPCODE: 1685 PPCODE:
1247{ 1686{
1248 dREQ; 1687 int fd = s_fileno_croak (fh, 0);
1688 char *svptr;
1249 1689
1250 req->type = REQ_SENDFILE; 1690 if (SvPOK (arg) || !SvNIOK (arg))
1251 req->fh = newSVsv (out_fh);
1252 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1253 req->fh2 = newSVsv (in_fh);
1254 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1255 req->offset = in_offset;
1256 req->length = length;
1257
1258 REQ_SEND;
1259}
1260
1261void
1262aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1263 SV * fh
1264 UV offset
1265 IV length
1266 SV * callback
1267 PROTOTYPE: $$$;$
1268 PPCODE:
1269{
1270 dREQ;
1271
1272 req->type = REQ_READAHEAD;
1273 req->fh = newSVsv (fh);
1274 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1275 req->offset = offset;
1276 req->length = length;
1277
1278 REQ_SEND;
1279}
1280
1281void
1282aio_stat (fh_or_path,callback=&PL_sv_undef)
1283 SV * fh_or_path
1284 SV * callback
1285 ALIAS:
1286 aio_stat = REQ_STAT
1287 aio_lstat = REQ_LSTAT
1288 PPCODE:
1289{
1290 dREQ;
1291
1292 New (0, req->statdata, 1, Stat_t);
1293 if (!req->statdata)
1294 { 1691 {
1295 req_free (req); 1692 STRLEN svlen;
1296 croak ("out of memory during aio_req->statdata allocation"); 1693 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1297 } 1694#ifdef IOCPARM_LEN
1695 STRLEN need = IOCPARM_LEN (request);
1696#else
1697 STRLEN need = 256;
1698#endif
1298 1699
1299 if (SvPOK (fh_or_path)) 1700 if (svlen < need)
1300 { 1701 svptr = SvGROW (arg, need);
1301 req->type = ix;
1302 req->data = newSVsv (fh_or_path);
1303 req->dataptr = SvPVbyte_nolen (req->data);
1304 } 1702 }
1305 else 1703 else
1704 svptr = (char *)SvIV (arg);
1705
1306 { 1706 {
1707 dREQ;
1708
1307 req->type = REQ_FSTAT; 1709 req->type = ix;
1308 req->fh = newSVsv (fh_or_path); 1710 req->sv1 = newSVsv (fh);
1309 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1711 req->int1 = fd;
1712 req->int2 = (long)request;
1713 req->sv2 = SvREFCNT_inc (arg);
1714 req->ptr2 = svptr;
1715
1716 REQ_SEND;
1310 } 1717 }
1718}
1719
1720void
1721aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1722 ALIAS:
1723 aio_readlink = EIO_READLINK
1724 aio_realpath = EIO_REALPATH
1725 PPCODE:
1726{
1727 dREQ;
1728
1729 req->type = ix;
1730 req_set_path1 (req, pathname);
1311 1731
1312 REQ_SEND; 1732 REQ_SEND;
1313} 1733}
1314 1734
1315void 1735void
1316aio_unlink (pathname,callback=&PL_sv_undef) 1736aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1317 SV * pathname 1737 PPCODE:
1318 SV * callback 1738{
1739 int ifd = s_fileno_croak (in_fh , 0);
1740 int ofd = s_fileno_croak (out_fh, 1);
1741 dREQ;
1742
1743 req->type = EIO_SENDFILE;
1744 req->sv1 = newSVsv (out_fh);
1745 req->int1 = ofd;
1746 req->sv2 = newSVsv (in_fh);
1747 req->int2 = ifd;
1748 req->offs = in_offset;
1749 req->size = length;
1750
1751 REQ_SEND;
1752}
1753
1754void
1755aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1756 PPCODE:
1757{
1758 int fd = s_fileno_croak (fh, 0);
1759 dREQ;
1760
1761 req->type = EIO_READAHEAD;
1762 req->sv1 = newSVsv (fh);
1763 req->int1 = fd;
1764 req->offs = offset;
1765 req->size = length;
1766
1767 REQ_SEND;
1768}
1769
1770void
1771aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1319 ALIAS: 1772 ALIAS:
1773 aio_stat = EIO_STAT
1774 aio_lstat = EIO_LSTAT
1775 aio_statvfs = EIO_STATVFS
1776 PPCODE:
1777{
1778 dREQ;
1779
1780 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1781
1782 REQ_SEND;
1783}
1784
1785void
1786st_xtime ()
1787 ALIAS:
1788 st_atime = 0x01
1789 st_mtime = 0x02
1790 st_ctime = 0x04
1791 st_btime = 0x08
1792 st_xtime = 0x0f
1793 PPCODE:
1794 EXTEND (SP, 4);
1795 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1796 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1797 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1798 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1799
1800void
1801st_xtimensec ()
1802 ALIAS:
1803 st_atimensec = 0x01
1804 st_mtimensec = 0x02
1805 st_ctimensec = 0x04
1806 st_btimensec = 0x08
1807 st_xtimensec = 0x0f
1808 st_btimesec = 0x10
1809 st_gen = 0x20
1810 PPCODE:
1811 EXTEND (SP, 4);
1812 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1813 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1814 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1815 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1816 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1817 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1818
1819UV
1820major (UV dev)
1821 ALIAS:
1822 minor = 1
1823 CODE:
1824 RETVAL = ix ? minor (dev) : major (dev);
1825 OUTPUT:
1826 RETVAL
1827
1828UV
1829makedev (UV maj, UV min)
1830 CODE:
1831 RETVAL = makedev (maj, min);
1832 OUTPUT:
1833 RETVAL
1834
1835void
1836aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1837 PPCODE:
1838{
1839 dREQ;
1840
1841 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1842 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1843 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1844
1845 REQ_SEND;
1846}
1847
1848void
1849aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1850 PPCODE:
1851{
1852 dREQ;
1853
1854 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1855 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1856
1857 REQ_SEND;
1858}
1859
1860void
1861aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1862 PPCODE:
1863{
1864 dREQ;
1865
1866 req->int2 = mode;
1867 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1868
1869 REQ_SEND;
1870}
1871
1872void
1873aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1874 PPCODE:
1875{
1876 dREQ;
1877
1878 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1879 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1880 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1881
1882 REQ_SEND;
1883}
1884
1885void
1886aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1887 PPCODE:
1888{
1889 dREQ;
1890
1891 req->type = EIO_READDIR;
1892 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1893
1894 if (flags & EIO_READDIR_DENTS)
1895 req->int1 |= EIO_READDIR_CUSTOM2;
1896
1897 req_set_path1 (req, pathname);
1898
1899 REQ_SEND;
1900}
1901
1902void
1903aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1904 PPCODE:
1905{
1906 dREQ;
1907
1908 req->type = EIO_MKDIR;
1909 req->int2 = mode;
1910 req_set_path1 (req, pathname);
1911
1912 REQ_SEND;
1913}
1914
1915void
1916aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1917 ALIAS:
1320 aio_unlink = REQ_UNLINK 1918 aio_unlink = EIO_UNLINK
1321 aio_rmdir = REQ_RMDIR 1919 aio_rmdir = EIO_RMDIR
1322 aio_readdir = REQ_READDIR 1920 aio_readdir = EIO_READDIR
1323 PPCODE: 1921 PPCODE:
1324{ 1922{
1325 dREQ; 1923 dREQ;
1326 1924
1327 req->type = ix; 1925 req->type = ix;
1328 req->data = newSVsv (pathname); 1926 req_set_path1 (req, pathname);
1329 req->dataptr = SvPVbyte_nolen (req->data); 1927
1330
1331 REQ_SEND; 1928 REQ_SEND;
1332} 1929}
1333 1930
1334void 1931void
1335aio_link (oldpath,newpath,callback=&PL_sv_undef) 1932aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1336 SV * oldpath
1337 SV * newpath
1338 SV * callback
1339 ALIAS: 1933 ALIAS:
1340 aio_link = REQ_LINK 1934 aio_link = EIO_LINK
1341 aio_symlink = REQ_SYMLINK 1935 aio_symlink = EIO_SYMLINK
1342 aio_rename = REQ_RENAME 1936 aio_rename = EIO_RENAME
1343 PPCODE: 1937 PPCODE:
1344{ 1938{
1939 eio_wd wd2 = 0;
1345 dREQ; 1940 dREQ;
1346 1941
1347 req->type = ix; 1942 req->type = ix;
1348 req->fh = newSVsv (oldpath); 1943 req_set_path1 (req, oldpath);
1349 req->data2ptr = SvPVbyte_nolen (req->fh); 1944 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1350 req->data = newSVsv (newpath); 1945 req->int3 = (long)wd2;
1351 req->dataptr = SvPVbyte_nolen (req->data);
1352 1946
1353 REQ_SEND; 1947 REQ_SEND;
1354} 1948}
1355 1949
1356void 1950void
1357aio_busy (delay,callback=&PL_sv_undef) 1951aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1358 double delay
1359 SV * callback
1360 PPCODE: 1952 PPCODE:
1361{ 1953{
1954 eio_wd wd2 = 0;
1362 dREQ; 1955 dREQ;
1363 1956
1364 req->type = REQ_BUSY; 1957 req->type = EIO_RENAME;
1365 req->fd = delay < 0. ? 0 : delay; 1958 req_set_path1 (req, oldpath);
1366 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1959 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1367 1960 req->int2 = flags;
1961 req->int3 = (long)wd2;
1962
1368 REQ_SEND; 1963 REQ_SEND;
1369} 1964}
1370 1965
1371void 1966void
1967aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1968 PPCODE:
1969{
1970 dREQ;
1971
1972 req->type = EIO_MKNOD;
1973 req->int2 = (mode_t)mode;
1974 req->offs = dev;
1975 req_set_path1 (req, pathname);
1976
1977 REQ_SEND;
1978}
1979
1980void
1981aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1982 ALIAS:
1983 aio_mtouch = EIO_MTOUCH
1984 aio_msync = EIO_MSYNC
1985 PPCODE:
1986{
1987 STRLEN svlen;
1988 char *svptr = SvPVbyte (data, svlen);
1989 UV len = SvUV (length);
1990
1991 if (flags < 0)
1992 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1993
1994 if (offset < 0)
1995 offset += svlen;
1996
1997 if (offset < 0 || offset > svlen)
1998 croak ("offset outside of scalar");
1999
2000 if (!SvOK (length) || len + offset > svlen)
2001 len = svlen - offset;
2002
2003 {
2004 dREQ;
2005
2006 req->type = ix;
2007 req->sv2 = SvREFCNT_inc (data);
2008 req->ptr2 = (char *)svptr + offset;
2009 req->size = len;
2010 req->int1 = flags;
2011
2012 REQ_SEND;
2013 }
2014}
2015
2016void
2017aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2018 PPCODE:
2019{
2020 STRLEN svlen;
2021 char *svptr = SvPVbyte (data, svlen);
2022 UV len = SvUV (length);
2023
2024 if (offset < 0)
2025 offset += svlen;
2026
2027 if (offset < 0 || offset > svlen)
2028 croak ("offset outside of scalar");
2029
2030 if (!SvOK (length) || len + offset > svlen)
2031 len = svlen - offset;
2032
2033 {
2034 dREQ;
2035
2036 req->type = EIO_MLOCK;
2037 req->sv2 = SvREFCNT_inc (data);
2038 req->ptr2 = (char *)svptr + offset;
2039 req->size = len;
2040
2041 REQ_SEND;
2042 }
2043}
2044
2045void
2046aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2047 PPCODE:
2048{
2049 dREQ;
2050
2051 req->type = EIO_MLOCKALL;
2052 req->int1 = flags;
2053
2054 REQ_SEND;
2055}
2056
2057void
2058aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2059 PPCODE:
2060{
2061 int fd = s_fileno_croak (fh, 0);
2062 dREQ;
2063
2064 req->type = EIO_CUSTOM;
2065 req->sv1 = newSVsv (fh);
2066 req->int1 = fd;
2067
2068 req->feed = fiemap;
2069#if HAVE_FIEMAP
2070 /* keep our fingers crossed that the next two types are 64 bit */
2071 req->offs = start;
2072 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2073 req->int2 = flags;
2074 req->int3 = SvOK (count) ? SvIV (count) : -1;
2075#endif
2076
2077 REQ_SEND;
2078}
2079
2080void
2081aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
2082 PPCODE:
2083{
2084 char *svptr = 0;
2085
2086 sv_clear_foreign (data);
2087
2088 if (length) /* known length, directly read into scalar */
2089 {
2090 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2091 svptr = sv_grow (data, length + 1);
2092 else if (SvCUR (data) < length)
2093 croak ("length outside of scalar, and cannot grow");
2094 else
2095 svptr = SvPVbyte_nolen (data);
2096 }
2097
2098 {
2099 dREQ;
2100
2101 req->type = EIO_SLURP;
2102 req_set_path1 (req, pathname);
2103 req->offs = offset;
2104 req->size = length;
2105 req->sv2 = SvREFCNT_inc (data);
2106 req->ptr2 = svptr;
2107
2108 if (!SvREADONLY (data))
2109 {
2110 SvREADONLY_on (data);
2111 req->flags |= FLAG_SV2_RO_OFF;
2112 }
2113
2114 REQ_SEND;
2115 }
2116}
2117
2118void
2119aio_busy (double delay, SV *callback = &PL_sv_undef)
2120 PPCODE:
2121{
2122 dREQ;
2123
2124 req->type = EIO_BUSY;
2125 req->nv1 = delay < 0. ? 0. : delay;
2126
2127 REQ_SEND;
2128}
2129
2130void
1372aio_group (callback=&PL_sv_undef) 2131aio_group (SV *callback = &PL_sv_undef)
1373 SV * callback 2132 PPCODE:
2133{
2134 dREQ;
2135
2136 req->type = EIO_GROUP;
2137
2138 PUTBACK;
2139 req_submit (req);
2140 SPAGAIN;
2141
2142 XPUSHs (req_sv (req, aio_grp_stash));
2143}
2144
2145void
2146aio_nop (SV *callback = &PL_sv_undef)
2147 ALIAS:
2148 aio_nop = EIO_NOP
2149 aio_sync = EIO_SYNC
2150 PPCODE:
2151{
2152 dREQ;
2153
2154 req->type = ix;
2155
2156 REQ_SEND;
2157}
2158
2159int
2160aioreq_pri (int pri = NO_INIT)
2161 CODE:
2162 RETVAL = next_pri;
2163 if (items > 0)
2164 {
2165 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
2166 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
2167 next_pri = pri;
2168 }
2169 OUTPUT:
2170 RETVAL
2171
2172void
2173aioreq_nice (int nice = 0)
2174 CODE:
2175 nice = next_pri - nice;
2176 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
2177 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
2178 next_pri = nice;
2179
2180void
2181flush ()
2182 CODE:
2183 while (eio_nreqs ())
2184 {
2185 poll_wait ();
2186 poll_cb ();
2187 }
2188
2189int
2190poll ()
2191 CODE:
2192 poll_wait ();
2193 RETVAL = poll_cb ();
2194 OUTPUT:
2195 RETVAL
2196
2197int
2198poll_fileno ()
2199 CODE:
2200 RETVAL = s_epipe_fd (&respipe);
2201 OUTPUT:
2202 RETVAL
2203
2204int
2205poll_cb (...)
2206 PROTOTYPE:
2207 CODE:
2208 RETVAL = poll_cb ();
2209 OUTPUT:
2210 RETVAL
2211
2212void
2213poll_wait ()
2214 CODE:
2215 poll_wait ();
2216
2217int
2218nreqs ()
2219 CODE:
2220 RETVAL = eio_nreqs ();
2221 OUTPUT:
2222 RETVAL
2223
2224int
2225nready ()
2226 CODE:
2227 RETVAL = eio_nready ();
2228 OUTPUT:
2229 RETVAL
2230
2231int
2232npending ()
2233 CODE:
2234 RETVAL = eio_npending ();
2235 OUTPUT:
2236 RETVAL
2237
2238int
2239nthreads ()
2240 CODE:
2241 RETVAL = eio_nthreads ();
2242 OUTPUT:
2243 RETVAL
2244
2245int
2246fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2247 CODE:
2248 RETVAL = posix_fadvise (fh, offset, length, advice);
2249 OUTPUT:
2250 RETVAL
2251
2252IV
2253sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2254 CODE:
2255 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2256 OUTPUT:
2257 RETVAL
2258
2259void
2260mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2261 PPCODE:
2262 sv_clear_foreign (scalar);
2263{
2264 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2265 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2266 if (addr == (void *)-1)
2267 XSRETURN_NO;
2268
2269 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2270
2271 if (!(prot & PROT_WRITE))
2272 SvREADONLY_on (scalar);
2273
2274 XSRETURN_YES;
2275}
2276
2277void
2278munmap (SV *scalar)
2279 CODE:
2280 sv_clear_foreign (scalar);
2281
2282SV *
2283mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2284 CODE:
2285{
2286 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2287 void *new;
2288
2289 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2290 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2291
2292 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2293
2294 RETVAL = &PL_sv_no;
2295
2296 if (new != (void *)-1)
2297 {
2298 RETVAL = new == (void *)mg->mg_ptr
2299 ? newSVpvn ("0 but true", 10)
2300 : &PL_sv_yes;
2301
2302 mg->mg_ptr = (char *)new;
2303 mg->mg_obj = (SV *)new_length;
2304
2305 SvPVX (scalar) = mg->mg_ptr;
2306 SvCUR_set (scalar, new_length);
2307 }
2308}
2309 OUTPUT:
2310 RETVAL
2311
2312int
2313madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2314 ALIAS:
2315 mprotect = 1
2316 CODE:
2317{
2318 STRLEN svlen;
2319 void *addr = SvPVbyte (scalar, svlen);
2320 STRLEN len = SvUV (length);
2321
2322 if (offset < 0)
2323 offset += svlen;
2324
2325 if (offset < 0 || offset > svlen)
2326 croak ("offset outside of scalar");
2327
2328 if (!SvOK (length) || len + offset > svlen)
2329 len = svlen - offset;
2330
2331 addr = (void *)(((intptr_t)addr) + offset);
2332 eio_page_align (&addr, &len);
2333
2334 switch (ix)
2335 {
2336 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2337 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2338 }
2339}
2340 OUTPUT:
2341 RETVAL
2342
2343int
2344munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2345 CODE:
2346{
2347 STRLEN svlen;
2348 void *addr = SvPVbyte (scalar, svlen);
2349 size_t len = SvUV (length);
2350
2351 if (offset < 0)
2352 offset += svlen;
2353
2354 if (offset < 0 || offset > svlen)
2355 croak ("offset outside of scalar");
2356
2357 if (!SvOK (length) || len + offset > svlen)
2358 len = svlen - offset;
2359
2360 addr = (void *)(((intptr_t)addr) + offset);
2361 eio_page_align (&addr, &len);
2362#if _POSIX_MEMLOCK_RANGE
2363 RETVAL = munlock (addr, len);
2364#else
2365 RETVAL = EIO_ENOSYS ();
2366#endif
2367}
2368 OUTPUT:
2369 RETVAL
2370
2371int
2372mlockall (int flags)
2373 PROTOTYPE: $;
2374 CODE:
2375 RETVAL = eio_mlockall_sync (flags);
2376 OUTPUT:
2377 RETVAL
2378
2379int
2380munlockall ()
2381 CODE:
2382#if _POSIX_MEMLOCK
2383 munlockall ();
2384#else
2385 RETVAL = EIO_ENOSYS ();
2386#endif
2387 OUTPUT:
2388 RETVAL
2389
2390int
2391statx (SV8 *pathname, int flags, UV mask)
2392 CODE:
2393{
2394 /* undocumented, and might go away, and anyway, should use eio_statx */
2395 SV *wdsv = 0;
2396 SV *pathsv = 0;
2397 eio_wd wd = EIO_CWD;
2398 void *ptr;
2399 int res;
2400
2401 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2402 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2403
2404 SvREFCNT_dec (pathsv);
2405 SvREFCNT_dec (wdsv);
2406}
2407 OUTPUT:
2408 RETVAL
2409
2410U32
2411stx_mode ()
2412 PROTOTYPE:
2413 CODE:
2414#if HAVE_STATX
2415 RETVAL = stx.stx_mode;
2416#else
2417 XSRETURN_UNDEF;
2418#endif
2419 OUTPUT:
2420 RETVAL
2421
2422#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2423#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2424#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2425#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2426#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2427#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2428#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2429#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2430#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2431#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2432#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2433#define STATX_OFFSET_size statx_offsetof (stx_size)
2434#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2435#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2436#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2437#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2438#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2439#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2440
2441U32
2442stx_mask ()
2443 PROTOTYPE:
2444 ALIAS:
2445 stx_mask = STATX_OFFSET_mask
2446 stx_blksize = STATX_OFFSET_blksize
2447 stx_nlink = STATX_OFFSET_nlink
2448 stx_uid = STATX_OFFSET_uid
2449 stx_gid = STATX_OFFSET_gid
2450 stx_rdev_major = STATX_OFFSET_rdev_major
2451 stx_rdev_minor = STATX_OFFSET_rdev_minor
2452 stx_dev_major = STATX_OFFSET_dev_major
2453 stx_dev_minor = STATX_OFFSET_dev_minor
2454 CODE:
2455#if HAVE_STATX
2456 RETVAL = *(__u32 *)((char *)&stx + ix);
2457#else
2458 XSRETURN_UNDEF;
2459#endif
2460 OUTPUT:
2461 RETVAL
2462
2463VAL64
2464stx_attributes ()
2465 PROTOTYPE:
2466 ALIAS:
2467 stx_attributes = STATX_OFFSET_attributes
2468 stx_ino = STATX_OFFSET_ino
2469 stx_size = STATX_OFFSET_size
2470 stx_blocks = STATX_OFFSET_blocks
2471 stx_attributes_mask = STATX_OFFSET_attributes_mask
2472 CODE:
2473#if HAVE_STATX
2474 RETVAL = *(__u64 *)((char *)&stx + ix);
2475#else
2476 XSRETURN_UNDEF;
2477#endif
2478 OUTPUT:
2479 RETVAL
2480
2481NV
2482stx_atime ()
2483 PROTOTYPE:
2484 ALIAS:
2485 stx_atime = STATX_OFFSET_atime
2486 stx_btime = STATX_OFFSET_btime
2487 stx_ctime = STATX_OFFSET_ctime
2488 stx_mtime = STATX_OFFSET_mtime
2489 CODE:
2490#if HAVE_STATX
2491 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2492 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2493#else
2494 XSRETURN_UNDEF;
2495#endif
2496 OUTPUT:
2497 RETVAL
2498
2499VAL64
2500stx_atimesec ()
2501 PROTOTYPE:
2502 ALIAS:
2503 stx_atimesec = STATX_OFFSET_atime
2504 stx_btimesec = STATX_OFFSET_btime
2505 stx_ctimesec = STATX_OFFSET_ctime
2506 stx_mtimesec = STATX_OFFSET_mtime
2507 CODE:
2508#if HAVE_STATX
2509 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2510 RETVAL = ts->tv_sec;
2511#else
2512 XSRETURN_UNDEF;
2513#endif
2514 OUTPUT:
2515 RETVAL
2516
2517U32
2518stx_atimensec ()
2519 PROTOTYPE:
2520 ALIAS:
2521 stx_atimensec = STATX_OFFSET_atime
2522 stx_btimensec = STATX_OFFSET_btime
2523 stx_ctimensec = STATX_OFFSET_ctime
2524 stx_mtimensec = STATX_OFFSET_mtime
2525 CODE:
2526#if HAVE_STATX
2527 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2528 RETVAL = ts->tv_nsec;
2529#else
2530 RETVAL = 0;
2531#endif
2532 OUTPUT:
2533 RETVAL
2534
2535void
2536accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2537 PPCODE:
2538{
2539 SV *retval;
2540#if HAVE_ACCEPT4
2541 socklen_t salen_ = salen ? salen + 1 : 0;
2542
2543 if (salen)
2544 {
2545 sv_upgrade (sockaddr, SVt_PV);
2546 sv_grow (sockaddr, salen_);
2547 }
2548
2549 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2550
2551 retval = newmortalFH (res, O_RDWR);
2552
2553 if (res >= 0 && salen > 0)
2554 {
2555 if (salen_ > salen + 1)
2556 salen_ = salen + 1;
2557
2558 SvPOK_only (sockaddr);
2559 SvCUR_set (sockaddr, salen_);
2560 }
2561#else
2562 errno = ENOSYS;
2563 retval = &PL_sv_undef;
2564#endif
2565 XPUSHs (retval);
2566}
2567
2568ssize_t
2569splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2570 CODE:
2571{
2572#if HAVE_LINUX_SPLICE
2573 loff_t off_in_, off_out_;
2574 RETVAL = splice (
2575 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2576 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2577 length, flags
2578 );
2579#else
2580 RETVAL = EIO_ENOSYS ();
2581#endif
2582}
2583 OUTPUT:
2584 RETVAL
2585
2586ssize_t
2587tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2588 CODE:
2589#if HAVE_LINUX_SPLICE
2590 RETVAL = tee (rfh, wfh, length, flags);
2591#else
2592 RETVAL = EIO_ENOSYS ();
2593#endif
2594 OUTPUT:
2595 RETVAL
2596
2597int
2598pipesize (aio_rfd rfh, int new_size = -1)
2599 PROTOTYPE: $;$
2600 CODE:
2601#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2602 if (new_size >= 0)
2603 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2604 else
2605 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2606#else
2607 errno = ENOSYS;
2608 RETVAL = -1;
2609#endif
2610 OUTPUT:
2611 RETVAL
2612
2613void
2614pipe2 (int flags = 0)
1374 PROTOTYPE: ;$ 2615 PROTOTYPE: ;$
1375 PPCODE: 2616 PPCODE:
1376{ 2617{
1377 dREQ; 2618 int fd[2];
2619 int res;
1378 2620
1379 req->type = REQ_GROUP; 2621 if (flags)
1380 req_send (req); 2622#if HAVE_PIPE2
2623 res = pipe2 (fd, flags);
2624#else
2625 res = (errno = ENOSYS, -1);
2626#endif
2627 else
2628 res = pipe (fd);
1381 2629
1382 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2630 if (!res)
2631 {
2632 EXTEND (SP, 2);
2633 PUSHs (newmortalFH (fd[0], O_RDONLY));
2634 PUSHs (newmortalFH (fd[1], O_WRONLY));
2635 }
1383} 2636}
1384 2637
1385void 2638void
1386aio_nop (callback=&PL_sv_undef) 2639pidfd_open (int pid, unsigned int flags = 0)
1387 SV * callback
1388 PPCODE: 2640 PPCODE:
1389{ 2641{
1390 dREQ; 2642 /*GENDEF0_SYSCALL(pidfd_open,434)*/
1391 2643 int fd = syscall (SYS_pidfd_open, pid, flags);
1392 req->type = REQ_NOP; 2644 XPUSHs (newmortalFH (fd, O_RDWR));
1393
1394 REQ_SEND;
1395} 2645}
1396 2646
1397void 2647int
1398aioreq_pri (int pri = DEFAULT_PRI) 2648pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
1399 CODE: 2649 PPCODE:
1400 if (pri < PRI_MIN) pri = PRI_MIN; 2650{
1401 if (pri > PRI_MAX) pri = PRI_MAX; 2651 int res;
1402 next_pri = pri + PRI_BIAS; 2652 siginfo_t si = { 0 };
1403 2653
1404void 2654 if (SvOK (siginfo))
1405aioreq_nice (int nice = 0) 2655 {
1406 CODE: 2656 HV *hv;
1407 nice = next_pri - nice; 2657 SV **svp;
1408 if (nice < PRI_MIN) nice = PRI_MIN;
1409 if (nice > PRI_MAX) nice = PRI_MAX;
1410 next_pri = nice + PRI_BIAS;
1411 2658
2659 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2660 croak ("siginfo argument must be a hashref code, pid, uid and value_int or value_ptr members, caught");
2661
2662 hv = (HV *)SvRV (siginfo);
2663
2664 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2665 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2666 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2667 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2668 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2669 }
2670
2671 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2672 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2673
2674 XPUSHs (sv_2mortal (newSViv (res)));
2675}
2676
1412void 2677void
1413flush () 2678pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
1414 PROTOTYPE: 2679 PPCODE:
2680{
2681 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2682 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2683 XPUSHs (newmortalFH (fd, O_RDWR));
2684}
2685
2686void
2687eventfd (unsigned int initval = 0, int flags = 0)
2688 PPCODE:
2689{
2690 int fd;
2691#if HAVE_EVENTFD
2692 fd = eventfd (initval, flags);
2693#else
2694 fd = (errno = ENOSYS, -1);
2695#endif
2696
2697 XPUSHs (newmortalFH (fd, O_RDWR));
2698}
2699
2700void
2701timerfd_create (int clockid, int flags = 0)
2702 PPCODE:
2703{
2704 int fd;
2705#if HAVE_TIMERFD
2706 fd = timerfd_create (clockid, flags);
2707#else
2708 fd = (errno = ENOSYS, -1);
2709#endif
2710
2711 XPUSHs (newmortalFH (fd, O_RDWR));
2712}
2713
2714void
2715timerfd_settime (SV *fh, int flags, NV interval, NV value)
2716 PPCODE:
2717{
2718 int fd = s_fileno_croak (fh, 0);
2719#if HAVE_TIMERFD
2720 int res;
2721 struct itimerspec its, ots;
2722
2723 ts_set (&its.it_interval, interval);
2724 ts_set (&its.it_value , value);
2725 res = timerfd_settime (fd, flags, &its, &ots);
2726
2727 if (!res)
2728 {
2729 EXTEND (SP, 2);
2730 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2731 PUSHs (newSVnv (ts_get (&ots.it_value)));
2732 }
2733#else
2734 errno = ENOSYS;
2735#endif
2736}
2737
2738void
2739timerfd_gettime (SV *fh)
2740 PPCODE:
2741{
2742 int fd = s_fileno_croak (fh, 0);
2743#if HAVE_TIMERFD
2744 int res;
2745 struct itimerspec ots;
2746 res = timerfd_gettime (fd, &ots);
2747
2748 if (!res)
2749 {
2750 EXTEND (SP, 2);
2751 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2752 PUSHs (newSVnv (ts_get (&ots.it_value)));
2753 }
2754#else
2755 errno = ENOSYS;
2756#endif
2757}
2758
2759void
2760memfd_create (SV8 *pathname, int flags = 0)
2761 PPCODE:
2762{
2763 int fd;
2764#if HAVE_MEMFD_CREATE
2765 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2766#else
2767 fd = (errno = ENOSYS, -1);
2768#endif
2769
2770 XPUSHs (newmortalFH (fd, O_RDWR));
2771}
2772
2773UV
2774get_fdlimit ()
1415 CODE: 2775 CODE:
1416 while (nreqs) 2776#if HAVE_RLIMITS
2777 struct rlimit rl;
2778 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2779 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2780#endif
2781 XSRETURN_UNDEF;
2782 OUTPUT:
2783 RETVAL
2784
2785void
2786min_fdlimit (UV limit = 0x7fffffffU)
2787 CODE:
2788{
2789#if HAVE_RLIMITS
2790 struct rlimit rl;
2791 rlim_t orig_rlim_max;
2792 UV bit;
2793
2794 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2795 goto fail;
2796
2797 if (rl.rlim_cur == RLIM_INFINITY)
2798 XSRETURN_YES;
2799
2800 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2801
2802 if (rl.rlim_cur < limit)
1417 { 2803 {
1418 poll_wait (); 2804 rl.rlim_cur = limit;
1419 poll_cb (0); 2805
2806 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2807 rl.rlim_max = rl.rlim_cur;
1420 } 2808 }
1421 2809
1422void 2810 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
1423poll() 2811 XSRETURN_YES;
1424 PROTOTYPE: 2812
2813 if (errno == EPERM)
2814 {
2815 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2816 /* our limit overflows a system-wide limit */
2817 /* try an adaptive algorithm, but do not lower the hardlimit */
2818 rl.rlim_max = 0;
2819 for (bit = 0x40000000U; bit; bit >>= 1)
2820 {
2821 rl.rlim_max |= bit;
2822 rl.rlim_cur = rl.rlim_max;
2823
2824 /* never decrease the hard limit */
2825 if (rl.rlim_max < orig_rlim_max)
2826 break;
2827
2828 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2829 rl.rlim_max &= ~bit; /* too high, remove bit again */
2830 }
2831
2832 /* now, raise the soft limit to the max permitted */
2833 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2834 {
2835 rl.rlim_cur = rl.rlim_max;
2836 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2837 errno = EPERM;
2838 }
2839 }
2840#endif
2841 fail:
2842 XSRETURN_UNDEF;
2843}
2844
2845void _on_next_submit (SV *cb)
1425 CODE: 2846 CODE:
1426 if (nreqs) 2847 SvREFCNT_dec (on_next_submit);
1427 { 2848 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1428 poll_wait ();
1429 poll_cb (0);
1430 }
1431 2849
1432int 2850PROTOTYPES: DISABLE
1433poll_fileno() 2851
1434 PROTOTYPE: 2852MODULE = IO::AIO PACKAGE = IO::AIO::WD
2853
2854BOOT:
2855{
2856 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2857 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2858}
2859
2860void
2861DESTROY (SV *self)
1435 CODE: 2862 CODE:
1436 RETVAL = respipe [0]; 2863{
1437 OUTPUT: 2864 aio_wd wd = SvAIO_WD (self);
1438 RETVAL 2865#if HAVE_AT
1439 2866 {
1440int 2867 SV *callback = &PL_sv_undef;
1441poll_cb(...) 2868 dREQ; /* clobbers next_pri :/ */
1442 PROTOTYPE: 2869 next_pri = req->pri; /* restore next_pri */
1443 CODE: 2870 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1444 RETVAL = poll_cb (0); 2871 req->type = EIO_WD_CLOSE;
1445 OUTPUT: 2872 req->wd = wd;
1446 RETVAL 2873 REQ_SEND;
1447 2874 }
1448int 2875#else
1449poll_some(int max = 0) 2876 eio_wd_close_sync (wd);
1450 PROTOTYPE: $ 2877#endif
1451 CODE: 2878}
1452 RETVAL = poll_cb (max);
1453 OUTPUT:
1454 RETVAL
1455
1456void
1457poll_wait()
1458 PROTOTYPE:
1459 CODE:
1460 if (nreqs)
1461 poll_wait ();
1462
1463int
1464nreqs()
1465 PROTOTYPE:
1466 CODE:
1467 RETVAL = nreqs;
1468 OUTPUT:
1469 RETVAL
1470
1471PROTOTYPES: DISABLE
1472 2879
1473MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2880MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1474 2881
1475void 2882void
1476cancel (aio_req_ornot req) 2883cancel (aio_req_ornot req)
1477 CODE: 2884 CODE:
1478 req_cancel (req); 2885 eio_cancel (req);
1479 2886
1480void 2887void
1481cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2888cb (aio_req_ornot req, SV *callback = NO_INIT)
1482 CODE: 2889 PPCODE:
2890{
2891 if (GIMME_V != G_VOID)
2892 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2893
2894 if (items > 1)
2895 {
2896 SV *cb_cv = get_cb (callback);
2897
1483 SvREFCNT_dec (req->callback); 2898 SvREFCNT_dec (req->callback);
1484 req->callback = newSVsv (callback); 2899 req->callback = SvREFCNT_inc (cb_cv);
2900 }
2901}
1485 2902
1486MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2903MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1487 2904
1488void 2905void
1489add (aio_req grp, ...) 2906add (aio_req grp, ...)
1490 PPCODE: 2907 PPCODE:
1491{ 2908{
1492 int i; 2909 int i;
1493 aio_req req;
1494 2910
1495 if (grp->fd == 2) 2911 if (grp->int1 == 2)
1496 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2912 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1497 2913
1498 for (i = 1; i < items; ++i ) 2914 for (i = 1; i < items; ++i )
1499 { 2915 {
2916 aio_req req;
2917
1500 if (GIMME_V != G_VOID) 2918 if (GIMME_V != G_VOID)
1501 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2919 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1502 2920
1503 req = SvAIO_REQ (ST (i)); 2921 req = SvAIO_REQ (ST (i));
1504 2922
1505 if (req) 2923 if (req)
1506 { 2924 eio_grp_add (grp, req);
1507 ++grp->length;
1508 req->grp = grp;
1509
1510 req->grp_prev = 0;
1511 req->grp_next = grp->grp_first;
1512
1513 if (grp->grp_first)
1514 grp->grp_first->grp_prev = req;
1515
1516 grp->grp_first = req;
1517 }
1518 } 2925 }
1519} 2926}
1520 2927
1521void 2928void
1522cancel_subs (aio_req_ornot req) 2929cancel_subs (aio_req_ornot req)
… …
1526void 2933void
1527result (aio_req grp, ...) 2934result (aio_req grp, ...)
1528 CODE: 2935 CODE:
1529{ 2936{
1530 int i; 2937 int i;
2938 AV *av;
2939
2940 grp->errorno = errno;
2941
1531 AV *av = newAV (); 2942 av = newAV ();
2943 av_extend (av, items - 1);
1532 2944
1533 for (i = 1; i < items; ++i ) 2945 for (i = 1; i < items; ++i )
1534 av_push (av, newSVsv (ST (i))); 2946 av_push (av, newSVsv (ST (i)));
1535 2947
1536 SvREFCNT_dec (grp->data); 2948 SvREFCNT_dec (grp->sv1);
1537 grp->data = (SV *)av; 2949 grp->sv1 = (SV *)av;
1538} 2950}
2951
2952void
2953errno (aio_req grp, int errorno = errno)
2954 CODE:
2955 grp->errorno = errorno;
1539 2956
1540void 2957void
1541limit (aio_req grp, int limit) 2958limit (aio_req grp, int limit)
1542 CODE: 2959 CODE:
1543 grp->fd2 = limit; 2960 eio_grp_limit (grp, limit);
1544 aio_grp_feed (grp);
1545 2961
1546void 2962void
1547feed (aio_req grp, SV *callback=&PL_sv_undef) 2963feed (aio_req grp, SV *callback = &PL_sv_undef)
1548 CODE: 2964 CODE:
1549{ 2965{
1550 SvREFCNT_dec (grp->fh2); 2966 SvREFCNT_dec (grp->sv2);
1551 grp->fh2 = newSVsv (callback); 2967 grp->sv2 = newSVsv (callback);
2968 grp->feed = aio_grp_feed;
1552 2969
1553 if (grp->fd2 <= 0) 2970 if (grp->int2 <= 0)
1554 grp->fd2 = 2; 2971 grp->int2 = 2;
1555 2972
1556 aio_grp_feed (grp); 2973 eio_grp_limit (grp, grp->int2);
1557} 2974}
1558 2975

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