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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.77 by root, Thu Oct 26 13:25:40 2006 UTC vs.
Revision 1.288 by root, Tue Dec 29 18:00:40 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 <sys/wait.h>
90 #include <unistd.h>
91 #include <utime.h>
92 #include <signal.h>
93
94 #define EIO_STRUCT_STAT Stat_t
95
96#endif
97
98/*****************************************************************************/
99
100#if __GNUC__ >= 3
101# define expect(expr,value) __builtin_expect ((expr),(value))
102#else
103# define expect(expr,value) (expr)
104#endif
105
106#define expect_false(expr) expect ((expr) != 0, 0)
107#define expect_true(expr) expect ((expr) != 0, 1)
108
109/*****************************************************************************/
110
111#include "config.h"
112
113#if HAVE_SYS_MKDEV_H
37# include <sys/socket.h> 114# include <sys/mkdev.h>
115#elif HAVE_SYS_SYSMACROS_H
116# include <sys/sysmacros.h>
117#endif
118
119#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
120# include <sys/mman.h>
121#endif
122
123#if HAVE_SYS_UIO_H
38# include <sys/uio.h> 124# include <sys/uio.h>
39# elif __hpux 125#endif
40# include <sys/socket.h> 126
41# elif __solaris /* not yet */ 127#if HAVE_ST_XTIMENSEC
128# define ATIMENSEC PL_statcache.st_atimensec
129# define MTIMENSEC PL_statcache.st_mtimensec
130# define CTIMENSEC PL_statcache.st_ctimensec
131#elif HAVE_ST_XTIMESPEC
132# define ATIMENSEC PL_statcache.st_atim.tv_nsec
133# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
134# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
135#else
136# define ATIMENSEC 0
137# define MTIMENSEC 0
138# define CTIMENSEC 0
139#endif
140
141#if HAVE_ST_BIRTHTIMENSEC
142# define BTIMESEC PL_statcache.st_birthtime
143# define BTIMENSEC PL_statcache.st_birthtimensec
144#elif HAVE_ST_BIRTHTIMESPEC
145# define BTIMESEC PL_statcache.st_birthtim.tv_sec
146# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
147#else
148# define BTIMESEC 0
149# define BTIMENSEC 0
150#endif
151
152#if HAVE_ST_GEN
153# define ST_GEN PL_statcache.st_gen
154#else
155# define ST_GEN 0
156#endif
157
158#include "schmorp.h"
159
160#if HAVE_EVENTFD
42# include <sys/sendfile.h> 161# include <sys/eventfd.h>
162#endif
163
164#if HAVE_TIMERFD
165# include <sys/timerfd.h>
166#endif
167
168#if HAVE_RLIMITS
169 #include <sys/time.h>
170 #include <sys/resource.h>
171#endif
172
173typedef SV SV8; /* byte-sv, used for argument-checking */
174typedef int aio_rfd; /* read file desriptor */
175typedef int aio_wfd; /* write file descriptor */
176
177static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
178
179#define EIO_REQ_MEMBERS \
180 SV *callback; \
181 SV *sv1, *sv2; \
182 SV *sv3, *sv4; \
183 STRLEN stroffset; \
184 SV *self;
185
186#define EIO_NO_WRAPPERS 1
187
188#include "libeio/eio.h"
189
190static int req_invoke (eio_req *req);
191#define EIO_FINISH(req) req_invoke (req)
192static void req_destroy (eio_req *grp);
193#define EIO_DESTROY(req) req_destroy (req)
194
195#include "libeio/eio.c"
196
197#if !HAVE_POSIX_FADVISE
198# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
199#endif
200
201#if !HAVE_POSIX_MADVISE
202# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
203#endif
204
205#ifndef MAP_ANONYMOUS
206# ifdef MAP_ANON
207# define MAP_ANONYMOUS MAP_ANON
43# else 208# else
44# error sendfile support requested but not available 209# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
45# endif 210# endif
46#endif 211#endif
47 212
48/* used for struct dirent, AIX doesn't provide it */ 213#ifndef makedev
49#ifndef NAME_MAX 214# define makedev(maj,min) (((maj) << 8) | (min))
50# define NAME_MAX 4096
51#endif 215#endif
52 216#ifndef major
53#ifndef PTHREAD_STACK_MIN 217# define major(dev) ((dev) >> 8)
54/* care for broken platforms, e.g. windows */
55# define PTHREAD_STACK_MIN 16384
56#endif 218#endif
219#ifndef minor
220# define minor(dev) ((dev) & 0xff)
221#endif
57 222
58#if __ia64 223/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
59# define STACKSIZE 65536 224#ifdef __sun
60#elif __i386 || __x86_64 /* 16k is unreasonably high :( */ 225# undef PAGESIZE
61# define STACKSIZE PTHREAD_STACK_MIN 226#endif
227
228#if PAGESIZE <= 0
229# define PAGESIZE sysconf (_SC_PAGESIZE)
230#endif
231
232#if HAVE_SYSCALL
233#include <sys/syscall.h>
62#else 234#else
63# define STACKSIZE 16384 235# define syscall(nr,...) (errno = ENOSYS, -1)
64#endif 236#endif
65 237
66/* buffer size for various temporary buffers */ 238/*****************************************************************************/
67#define AIO_BUFSIZE 65536
68 239
69#define dBUF \ 240#if !_POSIX_MAPPED_FILES
70 char *aio_buf; \ 241# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
71 LOCK (wrklock); \ 242# define munmap(addr,length) EIO_ENOSYS ()
72 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \ 243#endif
73 UNLOCK (wrklock); \ 244
74 if (!aio_buf) \ 245#if !_POSIX_MEMORY_PROTECTION
246# define mprotect(addr,len,prot) EIO_ENOSYS ()
247#endif
248
249#if !MREMAP_MAYMOVE
250# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
251#endif
252
253#define FOREIGN_MAGIC PERL_MAGIC_ext
254
255static int ecb_cold
256mmap_free (pTHX_ SV *sv, MAGIC *mg)
257{
258 int old_errno = errno;
259 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
260 errno = old_errno;
261
262 mg->mg_obj = 0; /* just in case */
263
264 SvREADONLY_off (sv);
265
266 if (SvPVX (sv) != mg->mg_ptr)
267 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
268
269 SvCUR_set (sv, 0);
270 SvPVX (sv) = 0;
271 SvOK_off (sv);
272
75 return -1; 273 return 0;
274}
76 275
77enum { 276static MGVTBL mmap_vtbl = {
78 REQ_QUIT, 277 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}; 278};
90 279
91#define AIO_REQ_KLASS "IO::AIO::REQ" 280static int ecb_cold
92#define AIO_GRP_KLASS "IO::AIO::GRP" 281sysfree_free (pTHX_ SV *sv, MAGIC *mg)
93
94typedef struct aio_cb
95{ 282{
96 struct aio_cb *volatile next; 283 free (mg->mg_ptr);
284 mg->mg_obj = 0; /* just in case */
97 285
98 SV *data, *callback; 286 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;
105 287
106 STRLEN dataoffset; 288 if (SvPVX (sv) != mg->mg_ptr)
107 int type; 289 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
108 int fd, fd2;
109 int errorno;
110 mode_t mode; /* open */
111 290
112 unsigned char flags; 291 SvCUR_set (sv, 0);
113 unsigned char pri; 292 SvPVX (sv) = 0;
293 SvOK_off (sv);
114 294
115 SV *self; /* the perl counterpart of this request, if any */ 295 return 0;
116 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 296}
117} aio_cb;
118 297
119enum { 298static MGVTBL sysfree_vtbl = {
120 FLAG_CANCELLED = 0x01, 299 0, 0, 0, 0, sysfree_free
121}; 300};
122 301
123typedef aio_cb *aio_req; 302/*****************************************************************************/
124typedef aio_cb *aio_req_ornot;
125 303
126enum { 304/* helper: set scalar to foreign ptr with custom free */
127 PRI_MIN = -4, 305ecb_noinline
128 PRI_MAX = 4, 306static void
129 307sv_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 int started, wanted;
138static volatile int nreqs;
139static int respipe [2];
140
141#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
142# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
143#else
144# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
145#endif
146
147#define LOCK(mutex) pthread_mutex_lock (&(mutex))
148#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
149
150/* worker threads management */
151static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
152
153typedef struct worker {
154 /* locked by wrklock */
155 struct worker *prev, *next;
156
157 pthread_t tid;
158
159 /* locked by reslock, reqlock or wrklock */
160 aio_req req; /* currently processed request */
161 void *dbuf;
162 DIR *dirp;
163} worker;
164
165static worker wrk_first = { &wrk_first, &wrk_first, 0 };
166
167static void worker_clear (worker *wrk)
168{ 308{
169 if (wrk->dirp) 309 sv_force_normal (sv);
310
311 /* we store the length in mg_obj, as namlen is I32 :/ */
312 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
313 ->mg_obj = (SV *)length;
314
315 SvUPGRADE (sv, SVt_PV); /* nop... */
316
317 if (SvLEN (sv))
318 Safefree (SvPVX (sv));
319
320 SvPVX (sv) = (char *)addr;
321 SvCUR_set (sv, length);
322 SvLEN_set (sv, 0);
323 SvPOK_only (sv);
324}
325
326static void
327sv_clear_foreign (SV *sv)
328{
329 /* todo: iterate over magic and only free ours, but of course */
330 /* the perl5porters will call that (correct) behaviour buggy */
331 sv_unmagic (sv, FOREIGN_MAGIC);
332}
333
334/*****************************************************************************/
335
336/* defines all sorts of constants to 0 unless they are already defined */
337/* also provides const_iv_ and const_niv_ macros for them */
338#include "def0.h"
339
340/*****************************************************************************/
341
342static void
343fiemap (eio_req *req)
344{
345 req->result = -1;
346
347#if HAVE_FIEMAP
348 /* assume some c99 */
349 struct fiemap *fiemap = 0;
350 size_t end_offset;
351 int count = req->int3;
352
353 req->flags |= EIO_FLAG_PTR1_FREE;
354
355 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
356 /* increase in fixed steps */
357 if (count < 0)
358 count = 8;
359
360 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
361 errno = ENOMEM;
362 if (!fiemap)
363 return;
364
365 req->ptr1 = fiemap;
366
367 fiemap->fm_start = req->offs;
368 fiemap->fm_length = req->size;
369 fiemap->fm_flags = req->int2;
370 fiemap->fm_extent_count = count;
371
372 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
373 return;
374
375 if (req->int3 >= 0 /* not autosizing */
376 || !fiemap->fm_mapped_extents /* no more extents */
377 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
378 goto done;
379
380 /* else we have to loop -
381 * it would be tempting (actually I tried that first) to just query the
382 * number of extents needed, but linux often feels like not returning all
383 * extents, without telling us it left any out. this complicates
384 * this quite a bit.
385 */
386
387 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
388
389 for (;;)
170 { 390 {
171 closedir (wrk->dirp); 391 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
172 wrk->dirp = 0; 392 char scratch[3072];
173 } 393 struct fiemap *incmap = (struct fiemap *)scratch;
174 394
175 if (wrk->dbuf) 395 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
176 { 396 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
177 free (wrk->dbuf); 397 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
178 wrk->dbuf = 0; 398 incmap->fm_flags = fiemap->fm_flags;
179 } 399 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
180}
181 400
182static void worker_free (worker *wrk) 401 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
183{
184 wrk->next->prev = wrk->prev;
185 wrk->prev->next = wrk->next;
186
187 free (wrk);
188}
189
190static pthread_mutex_t reslock = AIO_MUTEX_INIT;
191static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
192static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
193
194/*
195 * a somewhat faster data structure might be nice, but
196 * with 8 priorities this actually needs <20 insns
197 * per shift, the most expensive operation.
198 */
199typedef struct {
200 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
201 int size;
202} reqq;
203
204static reqq req_queue;
205static reqq res_queue;
206
207int reqq_push (reqq *q, aio_req req)
208{
209 int pri = req->pri;
210 req->next = 0;
211
212 if (q->qe[pri])
213 {
214 q->qe[pri]->next = req;
215 q->qe[pri] = req;
216 }
217 else
218 q->qe[pri] = q->qs[pri] = req;
219
220 return q->size++;
221}
222
223aio_req reqq_shift (reqq *q)
224{
225 int pri;
226
227 if (!q->size)
228 return 0; 402 return;
229 403
230 --q->size; 404 if (!incmap->fm_mapped_extents)
405 goto done;
231 406
232 for (pri = NUM_PRI; pri--; ) 407 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
233 { 408 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
234 aio_req req = q->qs[pri]; 409 errno = ENOMEM;
235
236 if (req) 410 if (!fiemap)
411 return;
412
413 req->ptr1 = fiemap;
414
415 for (count = 0; count < incmap->fm_mapped_extents; ++count)
237 { 416 {
238 if (!(q->qs[pri] = req->next)) 417 struct fiemap_extent *e = incmap->fm_extents + count;
239 q->qe[pri] = 0;
240 418
241 return req; 419 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
420
421 if (e->fe_logical >= end_offset)
422 goto done;
423
424 if (e->fe_flags & FIEMAP_EXTENT_LAST)
425 goto done;
426
242 } 427 }
243 } 428 }
244 429
245 abort (); 430done:
246} 431 req->result = 0;
247 432
248static int poll_cb (int max); 433#else
249static void req_invoke (aio_req req); 434 errno = ENOSYS;
435#endif
436}
437
438/*****************************************************************************/
439
440static int close_fd; /* dummy fd to close fds via dup2 */
441
442#if HAVE_STATX
443static struct statx stx;
444#define statx_offsetof(member) offsetof (struct statx, member)
445#define eio__statx statx
446#else
447#define statx_offsetof(member) 0
448#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
449#endif
450
451enum {
452 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
453};
454
455typedef eio_req *aio_req;
456typedef eio_req *aio_req_ornot;
457typedef eio_wd aio_wd;
458
459static SV *on_next_submit;
460static int next_pri = EIO_PRI_DEFAULT;
461static int max_outstanding;
462
463static s_epipe respipe;
464
250static void req_free (aio_req req); 465static void req_destroy (aio_req req);
251static void req_cancel (aio_req req); 466static void req_cancel (aio_req req);
252 467
468static void
469want_poll (void)
470{
471 /* write a dummy byte to the pipe so fh becomes ready */
472 s_epipe_signal (&respipe);
473}
474
475static void
476done_poll (void)
477{
478 /* read any signals sent by the worker threads */
479 s_epipe_drain (&respipe);
480}
481
253/* must be called at most once */ 482/* must be called at most once */
254static SV *req_sv (aio_req req, const char *klass) 483ecb_noinline
484static SV *
485req_sv (aio_req req, HV *stash)
255{ 486{
256 if (!req->self) 487 if (!req->self)
257 { 488 {
258 req->self = (SV *)newHV (); 489 req->self = (SV *)newHV ();
259 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 490 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
260 } 491 }
261 492
262 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 493 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
263} 494}
264 495
265static aio_req SvAIO_REQ (SV *sv) 496static SV *
497newSVaio_wd (aio_wd wd)
498{
499 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
500}
501
502ecb_noinline
503static aio_req
504SvAIO_REQ (SV *sv)
266{ 505{
267 MAGIC *mg; 506 MAGIC *mg;
268 507
269 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 508 if (!SvROK (sv)
509 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
510 || (SvSTASH (SvRV (sv)) != aio_grp_stash
511 && SvSTASH (SvRV (sv)) != aio_req_stash
512 && !sv_derived_from (sv, "IO::AIO::REQ")))
270 croak ("object of class " AIO_REQ_KLASS " expected"); 513 croak ("object of class IO::AIO::REQ expected");
271 514
272 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 515 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
273 516
274 return mg ? (aio_req)mg->mg_ptr : 0; 517 return mg ? (aio_req)mg->mg_ptr : 0;
275} 518}
276 519
520static aio_wd
521SvAIO_WD (SV *sv)
522{
523 if (!SvROK (sv)
524 || SvTYPE (SvRV (sv)) != SVt_PVMG
525 || SvSTASH (SvRV (sv)) != aio_wd_stash)
526 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
527
528 return (aio_wd)(long)SvIVX (SvRV (sv));
529}
530
531static SV *
532newmortalFH (int fd, int flags)
533{
534 if (fd < 0)
535 return &PL_sv_undef;
536
537 GV *gv = (GV *)sv_newmortal ();
538 char sym[64];
539 int symlen;
540
541 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
542 gv_init (gv, aio_stash, sym, symlen, 0);
543
544 symlen = snprintf (
545 sym,
546 sizeof (sym),
547 "%s&=%d",
548 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
549 fd
550 );
551
552 return do_open (gv, sym, symlen, 0, 0, 0, 0)
553 ? (SV *)gv : &PL_sv_undef;
554}
555
556static void
277static void aio_grp_feed (aio_req grp) 557aio_grp_feed (aio_req grp)
278{ 558{
279 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 559 if (grp->sv2 && SvOK (grp->sv2))
280 { 560 {
281 int old_len = grp->length;
282
283 if (grp->fh2 && SvOK (grp->fh2))
284 {
285 dSP; 561 dSP;
286 562
287 ENTER; 563 ENTER;
288 SAVETMPS; 564 SAVETMPS;
289 PUSHMARK (SP); 565 PUSHMARK (SP);
290 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 566 XPUSHs (req_sv (grp, aio_grp_stash));
291 PUTBACK; 567 PUTBACK;
292 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 568 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
293 SPAGAIN; 569 SPAGAIN;
294 FREETMPS; 570 FREETMPS;
295 LEAVE; 571 LEAVE;
296 }
297
298 /* stop if no progress has been made */
299 if (old_len == grp->length)
300 {
301 SvREFCNT_dec (grp->fh2);
302 grp->fh2 = 0;
303 break;
304 }
305 } 572 }
306} 573}
307 574
308static void aio_grp_dec (aio_req grp) 575ecb_noinline
576static void
577req_submit (eio_req *req)
309{ 578{
310 --grp->length; 579 eio_submit (req);
311 580
312 /* call feeder, if applicable */ 581 if (expect_false (on_next_submit))
313 aio_grp_feed (grp);
314
315 /* finish, if done */
316 if (!grp->length && grp->fd)
317 { 582 {
318 req_invoke (grp); 583 dSP;
319 req_free (grp); 584 SV *cb = sv_2mortal (on_next_submit);
585
586 on_next_submit = 0;
587
588 PUSHMARK (SP);
589 PUTBACK;
590 call_sv (cb, G_DISCARD | G_EVAL);
320 } 591 }
321} 592}
322 593
323static void poll_wait () 594static int
595req_invoke (eio_req *req)
324{ 596{
325 fd_set rfd; 597 if (req->flags & FLAG_SV2_RO_OFF)
598 SvREADONLY_off (req->sv2);
326 599
327 while (nreqs) 600 if (!EIO_CANCELLED (req) && req->callback)
328 { 601 {
329 int size;
330#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
331 LOCK (reslock);
332#endif
333 size = res_queue.size;
334#if !(__i386 || __x86_64) /* safe without sempahore on these archs */
335 UNLOCK (reslock);
336#endif
337
338 if (size)
339 return;
340
341 FD_ZERO(&rfd);
342 FD_SET(respipe [0], &rfd);
343
344 select (respipe [0] + 1, &rfd, 0, 0, 0);
345 }
346}
347
348static void req_invoke (aio_req req)
349{
350 dSP; 602 dSP;
351 603 static SV *sv_result_cache; /* caches the result integer SV */
352 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 604 SV *sv_result;
353 {
354 errno = req->errorno;
355 605
356 ENTER; 606 ENTER;
357 SAVETMPS; 607 SAVETMPS;
358 PUSHMARK (SP); 608 PUSHMARK (SP);
359 EXTEND (SP, 1); 609 EXTEND (SP, 1);
360 610
611 /* do not recreate the result IV from scratch each time */
612 if (expect_true (sv_result_cache))
613 {
614 sv_result = sv_result_cache; sv_result_cache = 0;
615 SvIV_set (sv_result, req->result);
616 SvIOK_only (sv_result);
617 }
618 else
619 {
620 sv_result = newSViv (req->result);
621 SvREADONLY_on (sv_result);
622 }
623
361 switch (req->type) 624 switch (req->type)
362 { 625 {
626 case EIO_WD_OPEN:
627 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
628 break;
629
363 case REQ_READDIR: 630 case EIO_READDIR:
364 { 631 {
365 SV *rv = &PL_sv_undef; 632 SV *rv = &PL_sv_undef;
366 633
367 if (req->result >= 0) 634 if (req->result >= 0)
368 { 635 {
369 int i; 636 int i;
370 char *buf = req->data2ptr; 637 char *names = (char *)req->ptr2;
638 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
371 AV *av = newAV (); 639 AV *av = newAV ();
372 640
373 av_extend (av, req->result - 1); 641 av_extend (av, req->result - 1);
374 642
375 for (i = 0; i < req->result; ++i) 643 for (i = 0; i < req->result; ++i)
376 { 644 {
377 SV *sv = newSVpv (buf, 0); 645 if (req->int1 & EIO_READDIR_DENTS)
646 {
647 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
378 648
649 if (req->int1 & EIO_READDIR_CUSTOM2)
650 {
651 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
652 AV *avent = newAV ();
653
654 av_extend (avent, 2);
655
656 if (!sv_type [ent->type])
657 {
658 sv_type [ent->type] = newSViv (ent->type);
659 SvREADONLY_on (sv_type [ent->type]);
660 }
661
662 av_store (avent, 0, namesv);
663 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
664 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
665
666 av_store (av, i, newRV_noinc ((SV *)avent));
667 }
668 else
379 av_store (av, i, sv); 669 av_store (av, i, namesv);
670
671 ++ent;
672 }
673 else
674 {
675 SV *name = newSVpv (names, 0);
676 av_store (av, i, name);
380 buf += SvCUR (sv) + 1; 677 names += SvCUR (name) + 1;
678 }
381 } 679 }
382 680
383 rv = sv_2mortal (newRV_noinc ((SV *)av)); 681 rv = sv_2mortal (newRV_noinc ((SV *)av));
384 } 682 }
385 683
386 PUSHs (rv); 684 PUSHs (rv);
685
686 if (req->int1 & EIO_READDIR_CUSTOM1)
687 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
387 } 688 }
388 break; 689 break;
389 690
390 case REQ_OPEN: 691 case EIO_OPEN:
692 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
693 break;
694
695 case EIO_STATVFS:
696 case EIO_FSTATVFS:
391 { 697 {
392 /* convert fd to fh */ 698 SV *rv = &PL_sv_undef;
393 SV *fh; 699
700#ifndef _WIN32
701 if (req->result >= 0)
702 {
703 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
704 HV *hv = newHV ();
705 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
706 * chooses to make it a struct.
707 */
708 unsigned long fsid = 0;
709 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
394 710
395 PUSHs (sv_2mortal (newSViv (req->result))); 711 rv = sv_2mortal (newRV_noinc ((SV *)hv));
396 PUTBACK;
397 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
398 SPAGAIN;
399 712
400 fh = SvREFCNT_inc (POPs); 713 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
714 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
715 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
716 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
717 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
718 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
719 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
720 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
721 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
722 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
723 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
724 }
725#endif
401 726
402 PUSHMARK (SP); 727 PUSHs (rv);
403 XPUSHs (sv_2mortal (fh));
404 } 728 }
729
405 break; 730 break;
406 731
407 case REQ_GROUP: 732 case EIO_GROUP:
408 req->fd = 2; /* mark group as finished */ 733 req->int1 = 2; /* mark group as finished */
409 734
410 if (req->data) 735 if (req->sv1)
411 { 736 {
412 int i; 737 int i;
413 AV *av = (AV *)req->data; 738 AV *av = (AV *)req->sv1;
414 739
415 EXTEND (SP, AvFILL (av) + 1); 740 EXTEND (SP, AvFILL (av) + 1);
416 for (i = 0; i <= AvFILL (av); ++i) 741 for (i = 0; i <= AvFILL (av); ++i)
417 PUSHs (*av_fetch (av, i, 0)); 742 PUSHs (*av_fetch (av, i, 0));
418 } 743 }
419 break; 744 break;
420 745
421 case REQ_NOP: 746 case EIO_NOP:
422 case REQ_BUSY: 747 case EIO_BUSY:
423 break; 748 break;
424 749
750 case EIO_READLINK:
751 case EIO_REALPATH:
752 if (req->result > 0)
753 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
754 break;
755
756 case EIO_STAT:
757 case EIO_LSTAT:
758 case EIO_FSTAT:
759 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
760
761 if (!(PL_laststatval = req->result))
762 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
763 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
764
765 PUSHs (sv_result);
766 break;
767
768 case EIO_SEEK:
769 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
770 break;
771
772 case EIO_READ:
773 {
774 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
775 *SvEND (req->sv2) = 0;
776 SvPOK_only (req->sv2);
777 SvSETMAGIC (req->sv2);
778 PUSHs (sv_result);
779 }
780 break;
781
782 case EIO_SLURP:
783 {
784 if (req->result >= 0)
785 {
786 /* if length was originally not known, we steal the malloc'ed memory */
787 if (req->flags & EIO_FLAG_PTR2_FREE)
788 {
789 req->flags &= ~EIO_FLAG_PTR2_FREE;
790 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
791 }
792 else
793 {
794 SvCUR_set (req->sv2, req->result);
795 *SvEND (req->sv2) = 0;
796 SvPOK_only (req->sv2);
797 }
798
799 SvSETMAGIC (req->sv2);
800 }
801
802 PUSHs (sv_result);
803 }
804 break;
805
806 case EIO_CUSTOM:
807 if (req->feed == fiemap)
808 {
809#if HAVE_FIEMAP
810 if (!req->result)
811 {
812 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
813
814 if (fiemap->fm_extent_count)
815 {
816 AV *av = newAV ();
817 int i;
818
819 while (fiemap->fm_mapped_extents)
820 {
821 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
822 AV *ext_av = newAV ();
823
824 av_store (ext_av, 3, newSVuv (extent->fe_flags));
825 av_store (ext_av, 2, newSVval64 (extent->fe_length));
826 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
827 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
828
829 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
830 }
831
832 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
833 }
834 else
835 {
836 SvIV_set (sv_result, fiemap->fm_mapped_extents);
837 PUSHs (sv_result);
838 }
839 }
840#endif
841 }
842 else
843 PUSHs (sv_result);
844 break;
845
846#if 0
847 case EIO_CLOSE:
848 PerlIOUnix_refcnt_dec (req->int1);
849 break;
850#endif
851
852 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
853 if (req->result > 0)
854 SvIV_set (sv_result, 0);
855 /* FALLTHROUGH */
856
425 default: 857 default:
426 PUSHs (sv_2mortal (newSViv (req->result))); 858 PUSHs (sv_result);
427 break; 859 break;
428 } 860 }
429 861
862 errno = req->errorno;
430 863
431 PUTBACK; 864 PUTBACK;
432 call_sv (req->callback, G_VOID | G_EVAL); 865 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
433 SPAGAIN; 866 SPAGAIN;
867
868 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
869 SvREFCNT_dec (sv_result);
870 else
871 sv_result_cache = sv_result;
434 872
435 FREETMPS; 873 FREETMPS;
436 LEAVE; 874 LEAVE;
875
876 PUTBACK;
437 } 877 }
438 878
439 if (req->grp) 879 return !!SvTRUE (ERRSV);
440 {
441 aio_req grp = req->grp;
442
443 /* unlink request */
444 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
445 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
446
447 if (grp->grp_first == req)
448 grp->grp_first = req->grp_next;
449
450 aio_grp_dec (grp);
451 }
452
453 if (SvTRUE (ERRSV))
454 {
455 req_free (req);
456 croak (0);
457 }
458} 880}
459 881
460static void req_free (aio_req req) 882static void
883req_destroy (aio_req req)
461{ 884{
462 if (req->self) 885 if (req->self)
463 { 886 {
464 sv_unmagic (req->self, PERL_MAGIC_ext); 887 sv_unmagic (req->self, PERL_MAGIC_ext);
465 SvREFCNT_dec (req->self); 888 SvREFCNT_dec (req->self);
466 } 889 }
467 890
468 SvREFCNT_dec (req->data);
469 SvREFCNT_dec (req->fh); 891 SvREFCNT_dec (req->sv1);
470 SvREFCNT_dec (req->fh2); 892 SvREFCNT_dec (req->sv2);
893 SvREFCNT_dec (req->sv3);
894 SvREFCNT_dec (req->sv4);
471 SvREFCNT_dec (req->callback); 895 SvREFCNT_dec (req->callback);
472 Safefree (req->statdata);
473 896
474 if (req->type == REQ_READDIR)
475 free (req->data2ptr);
476
477 Safefree (req); 897 free (req);
478} 898}
479 899
900static void
480static void req_cancel_subs (aio_req grp) 901req_cancel_subs (aio_req grp)
481{ 902{
482 aio_req sub;
483
484 if (grp->type != REQ_GROUP) 903 if (grp->type != EIO_GROUP)
485 return; 904 return;
486 905
487 SvREFCNT_dec (grp->fh2); 906 SvREFCNT_dec (grp->sv2);
488 grp->fh2 = 0; 907 grp->sv2 = 0;
489 908
490 for (sub = grp->grp_first; sub; sub = sub->grp_next) 909 eio_grp_cancel (grp);
491 req_cancel (sub);
492} 910}
493 911
494static void req_cancel (aio_req req) 912ecb_cold
913static void
914create_respipe (void)
495{ 915{
496 req->flags |= FLAG_CANCELLED; 916 if (s_epipe_renew (&respipe))
497 917 croak ("IO::AIO: unable to initialize result pipe");
498 req_cancel_subs (req);
499} 918}
500 919
501static int poll_cb (int max) 920static void
921poll_wait (void)
502{ 922{
503 dSP; 923 while (eio_nreqs ())
504 int count = 0; 924 {
505 int do_croak = 0; 925 int size;
926
927 X_LOCK (EIO_POOL->reslock);
928 size = EIO_POOL->res_queue.size;
929 X_UNLOCK (EIO_POOL->reslock);
930
931 if (size)
932 return;
933
934 etp_maybe_start_thread (EIO_POOL);
935
936 s_epipe_wait (&respipe);
937 }
938}
939
940static int
941poll_cb (void)
942{
943 for (;;)
944 {
945 int res = eio_poll ();
946
947 if (res > 0)
948 croak (0);
949
950 if (!max_outstanding || max_outstanding > eio_nreqs ())
951 return res;
952
953 poll_wait ();
954 }
955}
956
957ecb_cold
958static void
959reinit (void)
960{
961 create_respipe ();
962
963 if (eio_init (want_poll, done_poll) < 0)
964 croak ("IO::AIO: unable to initialise eio library");
965}
966
967/*****************************************************************************/
968
969static SV *
970get_cb (SV *cb_sv)
971{
972 SvGETMAGIC (cb_sv);
973 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
974}
975
976ecb_noinline
977static aio_req ecb_noinline
978dreq (SV *callback)
979{
980 SV *cb_cv;
506 aio_req req; 981 aio_req req;
982 int req_pri = next_pri;
983 next_pri = EIO_PRI_DEFAULT;
507 984
508 while (max <= 0 || count < max) 985 cb_cv = get_cb (callback);
986
987 req = calloc (sizeof (*req), 1);
988 if (!req)
989 croak ("out of memory during eio_req allocation");
990
991 req->callback = SvREFCNT_inc (cb_cv);
992 req->pri = req_pri;
993
994 return req;
995}
996
997#define dREQ \
998 aio_req req = dreq (callback); \
999
1000#define REQ_SEND \
1001 PUTBACK; \
1002 req_submit (req); \
1003 SPAGAIN; \
1004 \
1005 if (GIMME_V != G_VOID) \
1006 XPUSHs (req_sv (req, aio_req_stash));
1007
1008/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1009ecb_inline
1010void
1011req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1012{
1013 if (expect_false (SvROK (path)))
509 { 1014 {
510 LOCK (reslock); 1015 SV *rv = SvRV (path);
511 req = reqq_shift (&res_queue); 1016 SV *wdob;
512 1017
513 if (req) 1018 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
514 { 1019 {
515 if (!res_queue.size) 1020 path = AvARRAY (rv)[1];
1021 wdob = AvARRAY (rv)[0];
1022
1023 if (SvOK (wdob))
516 { 1024 {
517 /* read any signals sent by the worker threads */ 1025 *wd = SvAIO_WD (wdob);
518 char buf [32]; 1026 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
519 while (read (respipe [0], buf, 32) == 32)
520 ;
521 } 1027 }
1028 else
1029 *wd = EIO_INVALID_WD;
522 } 1030 }
523 1031 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
524 UNLOCK (reslock);
525
526 if (!req)
527 break;
528
529 --nreqs;
530
531 if (req->type == REQ_QUIT)
532 started--;
533 else if (req->type == REQ_GROUP && req->length)
534 { 1032 {
535 req->fd = 1; /* mark request as delayed */ 1033 *wd = (aio_wd)(long)SvIVX (rv);
536 continue; 1034 *wdsv = SvREFCNT_inc_NN (rv);
1035 *ptr = ".";
1036 return; /* path set to "." */
537 } 1037 }
538 else 1038 else
539 { 1039 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
540 if (req->type == REQ_READ)
541 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
542
543 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
544 SvREADONLY_off (req->data);
545
546 if (req->statdata)
547 {
548 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
549 PL_laststatval = req->result;
550 PL_statcache = *(req->statdata);
551 }
552
553 req_invoke (req);
554
555 count++;
556 }
557
558 req_free (req);
559 } 1040 }
560 1041
561 return count; 1042 *pathsv = newSVsv (path);
1043 *ptr = SvPVbyte_nolen (*pathsv);
562} 1044}
563 1045
564static void *aio_proc(void *arg); 1046ecb_noinline
565 1047static void
566static void start_thread (void) 1048req_set_path1 (aio_req req, SV *path)
567{ 1049{
568 sigset_t fullsigset, oldsigset; 1050 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
569 pthread_attr_t attr; 1051}
570 1052
571 worker *wrk = calloc (1, sizeof (worker)); 1053ecb_noinline
1054static void
1055req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
1056{
1057 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
572 1058
573 if (!wrk) 1059 switch (SvTYPE (rv))
574 croak ("unable to allocate worker thread data");
575
576 pthread_attr_init (&attr);
577 pthread_attr_setstacksize (&attr, STACKSIZE);
578 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
579
580 sigfillset (&fullsigset);
581
582 LOCK (wrklock);
583 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
584
585 if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
586 { 1060 {
587 wrk->prev = &wrk_first; 1061 case SVt_PVIO:
588 wrk->next = wrk_first.next; 1062 case SVt_PVLV:
589 wrk_first.next->prev = wrk; 1063 case SVt_PVGV:
590 wrk_first.next = wrk; 1064 req->type = type_fh;
591 started++; 1065 req->sv1 = newSVsv (fh_or_path);
1066 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1067 break;
1068
1069 default:
1070 req->type = type_path;
1071 req_set_path1 (req, fh_or_path);
1072 break;
592 } 1073 }
593 else
594 free (wrk);
595
596 sigprocmask (SIG_SETMASK, &oldsigset, 0);
597 UNLOCK (wrklock);
598}
599
600static void req_send (aio_req req)
601{
602 while (started < wanted && nreqs >= started)
603 start_thread ();
604
605 ++nreqs;
606
607 LOCK (reqlock);
608 reqq_push (&req_queue, req);
609 pthread_cond_signal (&reqwait);
610 UNLOCK (reqlock);
611}
612
613static void end_thread (void)
614{
615 aio_req req;
616
617 Newz (0, req, 1, aio_cb);
618
619 req->type = REQ_QUIT;
620 req->pri = PRI_MAX + PRI_BIAS;
621
622 req_send (req);
623}
624
625static void min_parallel (int nthreads)
626{
627 if (wanted < nthreads)
628 wanted = nthreads;
629}
630
631static void max_parallel (int nthreads)
632{
633 int cur = started;
634
635 if (wanted > nthreads)
636 wanted = nthreads;
637
638 while (cur > wanted)
639 {
640 end_thread ();
641 cur--;
642 }
643
644 while (started > wanted)
645 {
646 poll_wait ();
647 poll_cb (0);
648 }
649}
650
651static void create_pipe ()
652{
653 if (pipe (respipe))
654 croak ("unable to initialize result pipe");
655
656 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
657 croak ("cannot set result pipe to nonblocking mode");
658
659 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
660 croak ("cannot set result pipe to nonblocking mode");
661} 1074}
662 1075
663/*****************************************************************************/ 1076/*****************************************************************************/
664/* work around various missing functions */
665 1077
666#if !HAVE_PREADWRITE 1078static void
667# define pread aio_pread 1079ts_set (struct timespec *ts, NV value)
668# define pwrite aio_pwrite
669
670/*
671 * make our pread/pwrite safe against themselves, but not against
672 * normal read/write by using a mutex. slows down execution a lot,
673 * but that's your problem, not mine.
674 */
675static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
676
677static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
678{ 1080{
679 ssize_t res; 1081 ts->tv_sec = value;
680 off_t ooffset; 1082 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
681
682 LOCK (preadwritelock);
683 ooffset = lseek (fd, 0, SEEK_CUR);
684 lseek (fd, offset, SEEK_SET);
685 res = read (fd, buf, count);
686 lseek (fd, ooffset, SEEK_SET);
687 UNLOCK (preadwritelock);
688
689 return res;
690} 1083}
691 1084
692static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1085static NV
1086ts_get (const struct timespec *ts)
693{ 1087{
694 ssize_t res; 1088 return ts->tv_sec + ts->tv_nsec * 1e-9;
695 off_t ooffset;
696
697 LOCK (preadwritelock);
698 ooffset = lseek (fd, 0, SEEK_CUR);
699 lseek (fd, offset, SEEK_SET);
700 res = write (fd, buf, count);
701 lseek (fd, offset, SEEK_SET);
702 UNLOCK (preadwritelock);
703
704 return res;
705} 1089}
706#endif
707 1090
708#if !HAVE_FDATASYNC 1091/*****************************************************************************/
709# define fdatasync fsync
710#endif
711 1092
712#if !HAVE_READAHEAD 1093XS(boot_IO__AIO) ecb_cold;
713# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
714 1094
715static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self) 1095MODULE = IO::AIO PACKAGE = IO::AIO
716{
717 dBUF;
718 1096
719 while (count > 0) 1097PROTOTYPES: ENABLE
720 {
721 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
722 1098
723 pread (fd, aio_buf, len, offset); 1099BOOT:
724 offset += len;
725 count -= len;
726 }
727
728 errno = 0;
729}
730
731#endif
732
733#if !HAVE_READDIR_R
734# define readdir_r aio_readdir_r
735
736static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
737
738static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
739{ 1100{
740 struct dirent *e; 1101 static const struct {
741 int errorno; 1102 const char *name;
1103 IV iv;
1104 } *civ, const_iv[] = {
1105# define const_niv(name, value) { # name, (IV) value },
1106# define const_iv(name) { # name, (IV) name },
1107# define const_eio(name) { # name, (IV) EIO_ ## name },
742 1108
743 LOCK (readdirlock); 1109 /* you have to re-run ./gendef0 after adding/removing any constants here */
1110 /* the first block can be undef if missing */
1111 const_iv (ENOSYS)
1112 const_iv (EXDEV)
1113 const_iv (EBADR)
744 1114
745 e = readdir (dirp); 1115 /* for lseek */
746 errorno = errno; 1116 const_iv (SEEK_DATA)
1117 const_iv (SEEK_HOLE)
747 1118
748 if (e) 1119 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
749 { 1120 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
750 *res = ent; 1121 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
751 strcpy (ent->d_name, e->d_name); 1122 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
752 } 1123 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
753 else 1124 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
754 *res = 0;
755 1125
756 UNLOCK (readdirlock); 1126 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1127 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1128 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1129 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1130 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
757 1131
758 errno = errorno; 1132 /* the second block will be 0 when missing */
759 return e ? 0 : -1; 1133 const_iv (O_ACCMODE)
760}
761#endif
762 1134
763/* sendfile always needs emulation */ 1135 const_iv (O_RDONLY)
764static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self) 1136 const_iv (O_WRONLY)
765{ 1137 const_iv (O_RDWR)
766 ssize_t res; 1138 const_iv (O_CREAT)
1139 const_iv (O_TRUNC)
1140 const_iv (O_EXCL)
1141 const_iv (O_APPEND)
767 1142
768 if (!count) 1143 const_iv (O_ASYNC)
769 return 0; 1144 const_iv (O_DIRECT)
1145 const_iv (O_NOATIME)
770 1146
771#if HAVE_SENDFILE 1147 const_iv (O_CLOEXEC)
772# if __linux 1148 const_iv (O_NOCTTY)
773 res = sendfile (ofd, ifd, &offset, count); 1149 const_iv (O_NOFOLLOW)
1150 const_iv (O_NONBLOCK)
1151 const_iv (O_EXEC)
1152 const_iv (O_SEARCH)
1153 const_iv (O_DIRECTORY)
1154 const_iv (O_DSYNC)
1155 const_iv (O_RSYNC)
1156 const_iv (O_SYNC)
1157 const_iv (O_PATH)
1158 const_iv (O_TMPFILE)
1159 const_iv (O_TTY_INIT)
774 1160
775# elif __freebsd 1161 const_iv (S_IFIFO)
776 /* 1162 const_iv (S_IFCHR)
777 * Of course, the freebsd sendfile is a dire hack with no thoughts 1163 const_iv (S_IFBLK)
778 * wasted on making it similar to other I/O functions. 1164 const_iv (S_IFLNK)
779 */ 1165 const_iv (S_IFREG)
1166 const_iv (S_IFDIR)
1167 const_iv (S_IFWHT)
1168 const_iv (S_IFSOCK)
1169 const_iv (S_IFMT)
1170
1171 const_iv (ST_RDONLY)
1172 const_iv (ST_NOSUID)
1173 const_iv (ST_NODEV)
1174 const_iv (ST_NOEXEC)
1175 const_iv (ST_SYNCHRONOUS)
1176 const_iv (ST_MANDLOCK)
1177 const_iv (ST_WRITE)
1178 const_iv (ST_APPEND)
1179 const_iv (ST_IMMUTABLE)
1180 const_iv (ST_NOATIME)
1181 const_iv (ST_NODIRATIME)
1182 const_iv (ST_RELATIME)
1183
1184 const_iv (PROT_NONE)
1185 const_iv (PROT_EXEC)
1186 const_iv (PROT_READ)
1187 const_iv (PROT_WRITE)
1188
1189 const_iv (MAP_PRIVATE)
1190 const_iv (MAP_SHARED)
1191 const_iv (MAP_FIXED)
1192 const_iv (MAP_ANONYMOUS)
1193
1194 /* linuxish */
1195 const_iv (MAP_LOCKED)
1196 const_iv (MAP_NORESERVE)
1197 const_iv (MAP_POPULATE)
1198 const_iv (MAP_NONBLOCK)
1199 const_iv (MAP_GROWSDOWN)
1200 const_iv (MAP_32BIT)
1201 const_iv (MAP_HUGETLB)
1202 const_iv (MAP_STACK)
1203
1204 const_iv (MREMAP_MAYMOVE)
1205 const_iv (MREMAP_FIXED)
1206
1207 const_iv (MSG_CMSG_CLOEXEC)
1208 const_iv (SOCK_CLOEXEC)
1209
1210 const_iv (F_DUPFD_CLOEXEC)
1211
1212 const_iv (F_ADD_SEALS)
1213 const_iv (F_GET_SEALS)
1214 const_iv (F_SEAL_SEAL)
1215 const_iv (F_SEAL_SHRINK)
1216 const_iv (F_SEAL_GROW)
1217 const_iv (F_SEAL_WRITE)
1218
1219 const_iv (F_OFD_GETLK)
1220 const_iv (F_OFD_SETLK)
1221 const_iv (F_OFD_GETLKW)
1222
1223 const_iv (FIFREEZE)
1224 const_iv (FITHAW)
1225 const_iv (FITRIM)
1226 const_iv (FICLONE)
1227 const_iv (FICLONERANGE)
1228 const_iv (FIDEDUPERANGE)
1229
1230 const_iv (FS_IOC_GETFLAGS)
1231 const_iv (FS_IOC_SETFLAGS)
1232 const_iv (FS_IOC_GETVERSION)
1233 const_iv (FS_IOC_SETVERSION)
1234 const_iv (FS_IOC_FIEMAP)
1235 const_iv (FS_IOC_FSGETXATTR)
1236 const_iv (FS_IOC_FSSETXATTR)
1237 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1238 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1239 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1240
1241 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1242
1243 const_iv (FS_SECRM_FL)
1244 const_iv (FS_UNRM_FL)
1245 const_iv (FS_COMPR_FL)
1246 const_iv (FS_SYNC_FL)
1247 const_iv (FS_IMMUTABLE_FL)
1248 const_iv (FS_APPEND_FL)
1249 const_iv (FS_NODUMP_FL)
1250 const_iv (FS_NOATIME_FL)
1251 const_iv (FS_DIRTY_FL)
1252 const_iv (FS_COMPRBLK_FL)
1253 const_iv (FS_NOCOMP_FL)
1254 const_iv (FS_ENCRYPT_FL)
1255 const_iv (FS_BTREE_FL)
1256 const_iv (FS_INDEX_FL)
1257 const_iv (FS_JOURNAL_DATA_FL)
1258 const_iv (FS_NOTAIL_FL)
1259 const_iv (FS_DIRSYNC_FL)
1260 const_iv (FS_TOPDIR_FL)
1261 const_iv (FS_FL_USER_MODIFIABLE)
1262
1263 const_iv (FS_XFLAG_REALTIME)
1264 const_iv (FS_XFLAG_PREALLOC)
1265 const_iv (FS_XFLAG_IMMUTABLE)
1266 const_iv (FS_XFLAG_APPEND)
1267 const_iv (FS_XFLAG_SYNC)
1268 const_iv (FS_XFLAG_NOATIME)
1269 const_iv (FS_XFLAG_NODUMP)
1270 const_iv (FS_XFLAG_RTINHERIT)
1271 const_iv (FS_XFLAG_PROJINHERIT)
1272 const_iv (FS_XFLAG_NOSYMLINKS)
1273 const_iv (FS_XFLAG_EXTSIZE)
1274 const_iv (FS_XFLAG_EXTSZINHERIT)
1275 const_iv (FS_XFLAG_NODEFRAG)
1276 const_iv (FS_XFLAG_FILESTREAM)
1277 const_iv (FS_XFLAG_DAX)
1278 const_iv (FS_XFLAG_HASATTR)
1279
1280 const_iv (FIEMAP_FLAG_SYNC)
1281 const_iv (FIEMAP_FLAG_XATTR)
1282 const_iv (FIEMAP_FLAGS_COMPAT)
1283 const_iv (FIEMAP_EXTENT_LAST)
1284 const_iv (FIEMAP_EXTENT_UNKNOWN)
1285 const_iv (FIEMAP_EXTENT_DELALLOC)
1286 const_iv (FIEMAP_EXTENT_ENCODED)
1287 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1288 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1289 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1290 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1291 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1292 const_iv (FIEMAP_EXTENT_MERGED)
1293 const_iv (FIEMAP_EXTENT_SHARED)
1294
1295 const_iv (SPLICE_F_MOVE)
1296 const_iv (SPLICE_F_NONBLOCK)
1297 const_iv (SPLICE_F_MORE)
1298 const_iv (SPLICE_F_GIFT)
1299
1300 const_iv (EFD_CLOEXEC)
1301 const_iv (EFD_NONBLOCK)
1302 const_iv (EFD_SEMAPHORE)
1303
1304 const_iv (MFD_CLOEXEC)
1305 const_iv (MFD_ALLOW_SEALING)
1306 const_iv (MFD_HUGETLB)
1307
1308 const_iv (CLOCK_REALTIME)
1309 const_iv (CLOCK_MONOTONIC)
1310 const_iv (CLOCK_BOOTTIME)
1311 const_iv (CLOCK_REALTIME_ALARM)
1312 const_iv (CLOCK_BOOTTIME_ALARM)
1313
1314 const_iv (TFD_NONBLOCK)
1315 const_iv (TFD_CLOEXEC)
1316
1317 const_iv (TFD_TIMER_ABSTIME)
1318 const_iv (TFD_TIMER_CANCEL_ON_SET)
1319
1320 const_iv (STATX_TYPE)
1321 const_iv (STATX_MODE)
1322 const_iv (STATX_NLINK)
1323 const_iv (STATX_UID)
1324 const_iv (STATX_GID)
1325 const_iv (STATX_ATIME)
1326 const_iv (STATX_MTIME)
1327 const_iv (STATX_CTIME)
1328 const_iv (STATX_INO)
1329 const_iv (STATX_SIZE)
1330 const_iv (STATX_BLOCKS)
1331 const_iv (STATX_BASIC_STATS)
1332 const_iv (STATX_ALL)
1333 const_iv (STATX_BTIME)
1334 const_iv (STATX_ATTR_COMPRESSED)
1335 const_iv (STATX_ATTR_IMMUTABLE)
1336 const_iv (STATX_ATTR_APPEND)
1337 const_iv (STATX_ATTR_NODUMP)
1338 const_iv (STATX_ATTR_ENCRYPTED)
1339 const_iv (STATX_ATTR_AUTOMOUNT)
1340
1341 const_iv (AT_FDCWD)
1342 const_iv (AT_SYMLINK_NOFOLLOW)
1343 const_iv (AT_EACCESS)
1344 const_iv (AT_REMOVEDIR)
1345 const_iv (AT_SYMLINK_FOLLOW)
1346 const_iv (AT_NO_AUTOMOUNT)
1347 const_iv (AT_EMPTY_PATH)
1348 const_iv (AT_STATX_SYNC_TYPE)
1349 const_iv (AT_STATX_AS_STAT)
1350 const_iv (AT_STATX_FORCE_SYNC)
1351 const_iv (AT_STATX_DONT_SYNC)
1352 const_iv (AT_RECURSIVE)
1353
1354 const_iv (OPEN_TREE_CLONE)
1355
1356 const_iv (FSOPEN_CLOEXEC)
1357
1358 const_iv (FSPICK_CLOEXEC)
1359 const_iv (FSPICK_SYMLINK_NOFOLLOW)
1360 const_iv (FSPICK_NO_AUTOMOUNT)
1361 const_iv (FSPICK_EMPTY_PATH)
1362
1363 const_iv (MOVE_MOUNT_F_SYMLINKS)
1364 const_iv (MOVE_MOUNT_F_AUTOMOUNTS)
1365 const_iv (MOVE_MOUNT_F_EMPTY_PATH)
1366 const_iv (MOVE_MOUNT_T_SYMLINKS)
1367 const_iv (MOVE_MOUNT_T_AUTOMOUNTS)
1368 const_iv (MOVE_MOUNT_T_EMPTY_PATH)
1369
1370 /* waitid */
1371 const_iv (P_PID)
1372 const_iv (P_PIDFD)
1373 const_iv (P_PGID)
1374 const_iv (P_ALL)
1375
1376 const_iv (FSCONFIG_SET_FLAG)
1377 const_iv (FSCONFIG_SET_STRING)
1378 const_iv (FSCONFIG_SET_BINARY)
1379 const_iv (FSCONFIG_SET_PATH)
1380 const_iv (FSCONFIG_SET_PATH_EMPTY)
1381 const_iv (FSCONFIG_SET_FD)
1382 const_iv (FSCONFIG_CMD_CREATE)
1383 const_iv (FSCONFIG_CMD_RECONFIGURE)
1384
1385 const_iv (MOUNT_ATTR_RDONLY)
1386 const_iv (MOUNT_ATTR_NOSUID)
1387 const_iv (MOUNT_ATTR_NODEV)
1388 const_iv (MOUNT_ATTR_NOEXEC)
1389 const_iv (MOUNT_ATTR__ATIME)
1390 const_iv (MOUNT_ATTR_RELATIME)
1391 const_iv (MOUNT_ATTR_NOATIME)
1392 const_iv (MOUNT_ATTR_STRICTATIME)
1393 const_iv (MOUNT_ATTR_NODIRATIME)
1394
1395 /* these are libeio constants, and are independent of gendef0 */
1396 const_eio (SEEK_SET)
1397 const_eio (SEEK_CUR)
1398 const_eio (SEEK_END)
1399
1400 const_eio (MCL_FUTURE)
1401 const_eio (MCL_CURRENT)
1402 const_eio (MCL_ONFAULT)
1403
1404 const_eio (MS_ASYNC)
1405 const_eio (MS_INVALIDATE)
1406 const_eio (MS_SYNC)
1407
1408 const_eio (MT_MODIFY)
1409
1410 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1411 const_eio (SYNC_FILE_RANGE_WRITE)
1412 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1413
1414 const_eio (FALLOC_FL_KEEP_SIZE)
1415 const_eio (FALLOC_FL_PUNCH_HOLE)
1416 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1417 const_eio (FALLOC_FL_ZERO_RANGE)
1418 const_eio (FALLOC_FL_INSERT_RANGE)
1419 const_eio (FALLOC_FL_UNSHARE_RANGE)
1420
1421 const_eio (RENAME_NOREPLACE)
1422 const_eio (RENAME_EXCHANGE)
1423 const_eio (RENAME_WHITEOUT)
1424
1425 const_eio (READDIR_DENTS)
1426 const_eio (READDIR_DIRS_FIRST)
1427 const_eio (READDIR_STAT_ORDER)
1428 const_eio (READDIR_FOUND_UNKNOWN)
1429
1430 const_eio (DT_UNKNOWN)
1431 const_eio (DT_FIFO)
1432 const_eio (DT_CHR)
1433 const_eio (DT_DIR)
1434 const_eio (DT_BLK)
1435 const_eio (DT_REG)
1436 const_eio (DT_LNK)
1437 const_eio (DT_SOCK)
1438 const_eio (DT_WHT)
1439 };
1440
1441 aio_stash = gv_stashpv ("IO::AIO" , 1);
1442 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1443 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1444 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1445
1446 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1447 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1448
1449 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1450
1451 /* allocate dummy pipe fd for aio_close */
780 { 1452 {
781 off_t sbytes; 1453 int pipefd [2];
782 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
783 1454
784 if (res < 0 && sbytes) 1455 if (
785 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */ 1456#ifdef _WIN32
786 res = sbytes; 1457 _pipe (pipefd, 1, _O_BINARY) < 0
1458#else
1459 pipe (pipefd) < 0
1460 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1461#endif
1462 || close (pipefd [1]) < 0
1463 )
1464 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1465
1466 close_fd = pipefd [0];
787 } 1467 }
788 1468
789# elif __hpux 1469 reinit ();
790 res = sendfile (ofd, ifd, offset, count, 0, 0); 1470}
791 1471
792# elif __solaris 1472void
1473reinit ()
1474 PROTOTYPE:
1475
1476void
1477max_poll_reqs (unsigned int nreqs)
1478 PROTOTYPE: $
1479 CODE:
1480 eio_set_max_poll_reqs (nreqs);
1481
1482void
1483max_poll_time (double nseconds)
1484 PROTOTYPE: $
1485 CODE:
1486 eio_set_max_poll_time (nseconds);
1487
1488void
1489min_parallel (unsigned int nthreads)
1490 PROTOTYPE: $
1491 CODE:
1492 eio_set_min_parallel (nthreads);
1493
1494void
1495max_parallel (unsigned int nthreads)
1496 PROTOTYPE: $
1497 CODE:
1498 eio_set_max_parallel (nthreads);
1499
1500void
1501max_idle (unsigned int nthreads)
1502 PROTOTYPE: $
1503 CODE:
1504 eio_set_max_idle (nthreads);
1505
1506void
1507idle_timeout (unsigned int seconds)
1508 PROTOTYPE: $
1509 CODE:
1510 eio_set_idle_timeout (seconds);
1511
1512void
1513max_outstanding (unsigned int maxreqs)
1514 PROTOTYPE: $
1515 CODE:
1516 max_outstanding = maxreqs;
1517
1518void
1519aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1520 PPCODE:
1521{
1522 dREQ;
1523
1524 req->type = EIO_WD_OPEN;
1525 req_set_path1 (req, pathname);
1526
1527 REQ_SEND;
1528}
1529
1530void
1531aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1532 PPCODE:
1533{
1534 dREQ;
1535
1536 req->type = EIO_OPEN;
1537 req_set_path1 (req, pathname);
1538 req->int1 = flags;
1539 req->int2 = mode;
1540
1541 REQ_SEND;
1542}
1543
1544void
1545aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1546 ALIAS:
1547 aio_fsync = EIO_FSYNC
1548 aio_fdatasync = EIO_FDATASYNC
1549 aio_syncfs = EIO_SYNCFS
1550 PPCODE:
1551{
1552 int fd = s_fileno_croak (fh, 0);
1553 dREQ;
1554
1555 req->type = ix;
1556 req->sv1 = newSVsv (fh);
1557 req->int1 = fd;
1558
1559 REQ_SEND;
1560}
1561
1562void
1563aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1564 PPCODE:
1565{
1566 int fd = s_fileno_croak (fh, 0);
1567 dREQ;
1568
1569 req->type = EIO_SYNC_FILE_RANGE;
1570 req->sv1 = newSVsv (fh);
1571 req->int1 = fd;
1572 req->offs = offset;
1573 req->size = nbytes;
1574 req->int2 = flags;
1575
1576 REQ_SEND;
1577}
1578
1579void
1580aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1581 PPCODE:
1582{
1583 int fd = s_fileno_croak (fh, 0);
1584 dREQ;
1585
1586 req->type = EIO_FALLOCATE;
1587 req->sv1 = newSVsv (fh);
1588 req->int1 = fd;
1589 req->int2 = mode;
1590 req->offs = offset;
1591 req->size = len;
1592
1593 REQ_SEND;
1594}
1595
1596void
1597aio_close (SV *fh, SV *callback = &PL_sv_undef)
1598 PPCODE:
1599{
1600 int fd = s_fileno_croak (fh, 0);
1601 dREQ;
1602#if 0
1603 /* partially duplicate logic in s_fileno */
1604 SvGETMAGIC (fh);
1605
1606 if (SvROK (fh))
793 { 1607 {
794 struct sendfilevec vec; 1608 fh = SvRV (fh);
795 size_t sbytes; 1609 SvGETMAGIC (fh);
796
797 vec.sfv_fd = ifd;
798 vec.sfv_flag = 0;
799 vec.sfv_off = offset;
800 vec.sfv_len = count;
801
802 res = sendfilev (ofd, &vec, 1, &sbytes);
803
804 if (res < 0 && sbytes)
805 res = sbytes;
806 } 1610 }
807 1611
808# endif 1612 if (SvTYPE (fh) == SVt_PVGV)
809#else
810 res = -1;
811 errno = ENOSYS;
812#endif
813
814 if (res < 0
815 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
816#if __solaris
817 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
818#endif
819 )
820 )
821 {
822 /* emulate sendfile. this is a major pain in the ass */
823 dBUF;
824
825 res = 0;
826
827 while (count)
828 {
829 ssize_t cnt;
830
831 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
832
833 if (cnt <= 0)
834 {
835 if (cnt && !res) res = -1;
836 break;
837 }
838
839 cnt = write (ofd, aio_buf, cnt);
840
841 if (cnt <= 0)
842 {
843 if (cnt && !res) res = -1;
844 break;
845 }
846
847 offset += cnt;
848 res += cnt;
849 count -= cnt;
850 }
851 }
852
853 return res;
854}
855
856/* read a full directory */
857static void scandir_ (aio_req req, worker *self)
858{
859 DIR *dirp;
860 union
861 {
862 struct dirent d;
863 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
864 } *u;
865 struct dirent *entp;
866 char *name, *names;
867 int memlen = 4096;
868 int memofs = 0;
869 int res = 0;
870 int errorno;
871
872 LOCK (wrklock);
873 self->dirp = dirp = opendir (req->dataptr);
874 self->dbuf = u = malloc (sizeof (*u));
875 req->data2ptr = names = malloc (memlen);
876 UNLOCK (wrklock);
877
878 if (dirp && u && names)
879 for (;;)
880 {
881 errno = 0;
882 readdir_r (dirp, &u->d, &entp);
883
884 if (!entp)
885 break;
886
887 name = entp->d_name;
888
889 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
890 { 1613 {
891 int len = strlen (name) + 1; 1614 /* perl filehandle */
1615 PerlIOUnix_refcnt_inc (fd);
1616 do_close ((GV *)fh, 1);
892 1617
893 res++; 1618 req->type = EIO_CLOSE;
894 1619 req->int1 = fd;
895 while (memofs + len > memlen) 1620 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
896 {
897 memlen *= 2;
898 LOCK (wrklock);
899 req->data2ptr = names = realloc (names, memlen);
900 UNLOCK (wrklock);
901
902 if (!names)
903 break;
904 }
905
906 memcpy (names + memofs, name, len);
907 memofs += len;
908 } 1621 }
909 }
910
911 if (errno)
912 res = -1;
913
914 req->result = res;
915}
916
917/*****************************************************************************/
918
919static void *aio_proc (void *thr_arg)
920{
921 aio_req req;
922 int type;
923 worker *self = (worker *)thr_arg;
924
925 do
926 {
927 LOCK (reqlock);
928
929 for (;;)
930 { 1622 else
931 self->req = req = reqq_shift (&req_queue); 1623#endif
932
933 if (req)
934 break;
935
936 pthread_cond_wait (&reqwait, &reqlock);
937 }
938
939 UNLOCK (reqlock);
940
941 errno = 0; /* strictly unnecessary */
942 type = req->type; /* remember type for QUIT check */
943
944 if (!(req->flags & FLAG_CANCELLED))
945 switch (type)
946 { 1624 {
947 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 1625 /* fd number */
948 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 1626 req->type = EIO_DUP2;
949 1627 req->int1 = close_fd;
950 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 1628 req->sv2 = newSVsv (fh);
951 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break; 1629 req->int2 = fd;
952
953 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
954 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
955 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
956
957 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
958 case REQ_CLOSE: req->result = close (req->fd); break;
959 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
960 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
961 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
962 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
963 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
964
965 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
966 case REQ_FSYNC: req->result = fsync (req->fd); break;
967 case REQ_READDIR: scandir_ (req, self); break;
968
969 case REQ_BUSY:
970 {
971 struct timeval tv;
972
973 tv.tv_sec = req->fd;
974 tv.tv_usec = req->fd2;
975
976 req->result = select (0, 0, 0, 0, &tv);
977 }
978
979 case REQ_GROUP:
980 case REQ_NOP:
981 case REQ_QUIT:
982 break;
983
984 default:
985 req->result = ENOSYS;
986 break;
987 } 1630 }
988 1631
989 req->errorno = errno; 1632 REQ_SEND;
990
991 LOCK (reslock);
992
993 if (!reqq_push (&res_queue, req))
994 /* write a dummy byte to the pipe so fh becomes ready */
995 write (respipe [1], &respipe, 1);
996
997 self->req = 0;
998 worker_clear (self);
999
1000 UNLOCK (reslock);
1001 }
1002 while (type != REQ_QUIT);
1003
1004 LOCK (wrklock);
1005 worker_free (self);
1006 UNLOCK (wrklock);
1007
1008 return 0;
1009} 1633}
1010 1634
1011/*****************************************************************************/
1012
1013static void atfork_prepare (void)
1014{
1015 LOCK (wrklock);
1016 LOCK (reqlock);
1017 LOCK (reslock);
1018#if !HAVE_PREADWRITE
1019 LOCK (preadwritelock);
1020#endif
1021#if !HAVE_READDIR_R
1022 LOCK (readdirlock);
1023#endif
1024}
1025
1026static void atfork_parent (void)
1027{
1028#if !HAVE_READDIR_R
1029 UNLOCK (readdirlock);
1030#endif
1031#if !HAVE_PREADWRITE
1032 UNLOCK (preadwritelock);
1033#endif
1034 UNLOCK (reslock);
1035 UNLOCK (reqlock);
1036 UNLOCK (wrklock);
1037}
1038
1039static void atfork_child (void)
1040{
1041 aio_req prv;
1042
1043 while (prv = reqq_shift (&req_queue))
1044 req_free (prv);
1045
1046 while (prv = reqq_shift (&res_queue))
1047 req_free (prv);
1048
1049 while (wrk_first.next != &wrk_first)
1050 {
1051 worker *wrk = wrk_first.next;
1052
1053 if (wrk->req)
1054 req_free (wrk->req);
1055
1056 worker_clear (wrk);
1057 worker_free (wrk);
1058 }
1059
1060 started = 0;
1061 nreqs = 0;
1062
1063 close (respipe [0]);
1064 close (respipe [1]);
1065 create_pipe ();
1066
1067 atfork_parent ();
1068}
1069
1070#define dREQ \
1071 aio_req req; \
1072 int req_pri = next_pri; \
1073 next_pri = DEFAULT_PRI + PRI_BIAS; \
1074 \
1075 if (SvOK (callback) && !SvROK (callback)) \
1076 croak ("callback must be undef or of reference type"); \
1077 \
1078 Newz (0, req, 1, aio_cb); \
1079 if (!req) \
1080 croak ("out of memory during aio_req allocation"); \
1081 \
1082 req->callback = newSVsv (callback); \
1083 req->pri = req_pri
1084
1085#define REQ_SEND \
1086 req_send (req); \
1087 \
1088 if (GIMME_V != G_VOID) \
1089 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1090
1091MODULE = IO::AIO PACKAGE = IO::AIO
1092
1093PROTOTYPES: ENABLE
1094
1095BOOT:
1096{
1097 HV *stash = gv_stashpv ("IO::AIO", 1);
1098 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1099 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1100 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1101
1102 create_pipe ();
1103 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1104}
1105
1106void 1635void
1107min_parallel (nthreads) 1636aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1108 int nthreads 1637 PPCODE:
1109 PROTOTYPE: $
1110
1111void
1112max_parallel (nthreads)
1113 int nthreads
1114 PROTOTYPE: $
1115
1116void
1117aio_open (pathname,flags,mode,callback=&PL_sv_undef)
1118 SV * pathname
1119 int flags
1120 int mode
1121 SV * callback
1122 PROTOTYPE: $$$;$
1123 PPCODE:
1124{ 1638{
1639 int fd = s_fileno_croak (fh, 0);
1125 dREQ; 1640 dREQ;
1126 1641
1127 req->type = REQ_OPEN; 1642 req->type = EIO_SEEK;
1128 req->data = newSVsv (pathname); 1643 req->sv1 = newSVsv (fh);
1129 req->dataptr = SvPVbyte_nolen (req->data); 1644 req->int1 = fd;
1130 req->fd = flags; 1645 req->offs = SvVAL64 (offset);
1131 req->mode = mode; 1646 req->int2 = whence;
1132 1647
1133 REQ_SEND; 1648 REQ_SEND;
1134} 1649}
1135 1650
1136void 1651void
1137aio_close (fh,callback=&PL_sv_undef) 1652aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1138 SV * fh
1139 SV * callback
1140 PROTOTYPE: $;$
1141 ALIAS: 1653 ALIAS:
1142 aio_close = REQ_CLOSE
1143 aio_fsync = REQ_FSYNC
1144 aio_fdatasync = REQ_FDATASYNC
1145 PPCODE:
1146{
1147 dREQ;
1148
1149 req->type = ix;
1150 req->fh = newSVsv (fh);
1151 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1152
1153 REQ_SEND (req);
1154}
1155
1156void
1157aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1158 SV * fh
1159 UV offset
1160 UV length
1161 SV * data
1162 UV dataoffset
1163 SV * callback
1164 ALIAS:
1165 aio_read = REQ_READ 1654 aio_read = EIO_READ
1166 aio_write = REQ_WRITE 1655 aio_write = EIO_WRITE
1167 PROTOTYPE: $$$$$;$
1168 PPCODE: 1656 PPCODE:
1169{ 1657{
1170 aio_req req;
1171 STRLEN svlen; 1658 STRLEN svlen;
1659 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1172 char *svptr = SvPVbyte (data, svlen); 1660 char *svptr = SvPVbyte (data, svlen);
1173 1661 UV len = SvUV (length);
1174 SvUPGRADE (data, SVt_PV);
1175 SvPOK_on (data);
1176 1662
1177 if (dataoffset < 0) 1663 if (dataoffset < 0)
1178 dataoffset += svlen; 1664 dataoffset += svlen;
1179 1665
1180 if (dataoffset < 0 || dataoffset > svlen) 1666 if (dataoffset < 0 || dataoffset > svlen)
1181 croak ("data offset outside of string"); 1667 croak ("dataoffset outside of data scalar");
1182 1668
1183 if (ix == REQ_WRITE) 1669 if (ix == EIO_WRITE)
1184 { 1670 {
1185 /* write: check length and adjust. */ 1671 /* write: check length and adjust. */
1186 if (length < 0 || length + dataoffset > svlen) 1672 if (!SvOK (length) || len + dataoffset > svlen)
1187 length = svlen - dataoffset; 1673 len = svlen - dataoffset;
1188 } 1674 }
1189 else 1675 else
1190 { 1676 {
1191 /* read: grow scalar as necessary */ 1677 /* read: check type and grow scalar as necessary */
1678 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1192 svptr = SvGROW (data, length + dataoffset); 1679 svptr = sv_grow (data, len + dataoffset + 1);
1680 else if (SvCUR (data) < len + dataoffset)
1681 croak ("length + dataoffset outside of scalar, and cannot grow");
1193 } 1682 }
1194
1195 if (length < 0)
1196 croak ("length must not be negative");
1197 1683
1198 { 1684 {
1199 dREQ; 1685 dREQ;
1200 1686
1201 req->type = ix; 1687 req->type = ix;
1202 req->fh = newSVsv (fh); 1688 req->sv1 = newSVsv (fh);
1203 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1689 req->int1 = fd;
1204 : IoOFP (sv_2io (fh))); 1690 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1205 req->offset = offset; 1691 req->size = len;
1206 req->length = length;
1207 req->data = SvREFCNT_inc (data); 1692 req->sv2 = SvREFCNT_inc (data);
1208 req->dataptr = (char *)svptr + dataoffset; 1693 req->ptr2 = (char *)svptr + dataoffset;
1694 req->stroffset = dataoffset;
1209 1695
1210 if (!SvREADONLY (data)) 1696 if (!SvREADONLY (data))
1211 { 1697 {
1212 SvREADONLY_on (data); 1698 SvREADONLY_on (data);
1213 req->data2ptr = (void *)data; 1699 req->flags |= FLAG_SV2_RO_OFF;
1214 } 1700 }
1215 1701
1216 REQ_SEND; 1702 REQ_SEND;
1217 } 1703 }
1218} 1704}
1219 1705
1220void 1706void
1221aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1707aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1222 SV * out_fh 1708 ALIAS:
1223 SV * in_fh 1709 aio_ioctl = EIO_IOCTL
1224 UV in_offset 1710 aio_fcntl = EIO_FCNTL
1225 UV length
1226 SV * callback
1227 PROTOTYPE: $$$$;$
1228 PPCODE: 1711 PPCODE:
1229{ 1712{
1230 dREQ; 1713 int fd = s_fileno_croak (fh, 0);
1714 char *svptr;
1231 1715
1232 req->type = REQ_SENDFILE; 1716 if (SvPOK (arg) || !SvNIOK (arg))
1233 req->fh = newSVsv (out_fh);
1234 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1235 req->fh2 = newSVsv (in_fh);
1236 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1237 req->offset = in_offset;
1238 req->length = length;
1239
1240 REQ_SEND;
1241}
1242
1243void
1244aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1245 SV * fh
1246 UV offset
1247 IV length
1248 SV * callback
1249 PROTOTYPE: $$$;$
1250 PPCODE:
1251{
1252 dREQ;
1253
1254 req->type = REQ_READAHEAD;
1255 req->fh = newSVsv (fh);
1256 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1257 req->offset = offset;
1258 req->length = length;
1259
1260 REQ_SEND;
1261}
1262
1263void
1264aio_stat (fh_or_path,callback=&PL_sv_undef)
1265 SV * fh_or_path
1266 SV * callback
1267 ALIAS:
1268 aio_stat = REQ_STAT
1269 aio_lstat = REQ_LSTAT
1270 PPCODE:
1271{
1272 dREQ;
1273
1274 New (0, req->statdata, 1, Stat_t);
1275 if (!req->statdata)
1276 { 1717 {
1277 req_free (req); 1718 STRLEN svlen;
1278 croak ("out of memory during aio_req->statdata allocation"); 1719 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1279 } 1720#ifdef IOCPARM_LEN
1721 STRLEN need = IOCPARM_LEN (request);
1722#else
1723 STRLEN need = 256;
1724#endif
1280 1725
1281 if (SvPOK (fh_or_path)) 1726 if (svlen < need)
1282 { 1727 svptr = SvGROW (arg, need);
1283 req->type = ix;
1284 req->data = newSVsv (fh_or_path);
1285 req->dataptr = SvPVbyte_nolen (req->data);
1286 } 1728 }
1287 else 1729 else
1730 svptr = (char *)SvIV (arg);
1731
1288 { 1732 {
1733 dREQ;
1734
1289 req->type = REQ_FSTAT; 1735 req->type = ix;
1290 req->fh = newSVsv (fh_or_path); 1736 req->sv1 = newSVsv (fh);
1291 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1737 req->int1 = fd;
1738 req->int2 = (long)request;
1739 req->sv2 = SvREFCNT_inc (arg);
1740 req->ptr2 = svptr;
1741
1742 REQ_SEND;
1292 } 1743 }
1744}
1745
1746void
1747aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1748 ALIAS:
1749 aio_readlink = EIO_READLINK
1750 aio_realpath = EIO_REALPATH
1751 PPCODE:
1752{
1753 dREQ;
1754
1755 req->type = ix;
1756 req_set_path1 (req, pathname);
1293 1757
1294 REQ_SEND; 1758 REQ_SEND;
1295} 1759}
1296 1760
1297void 1761void
1298aio_unlink (pathname,callback=&PL_sv_undef) 1762aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1299 SV * pathname 1763 PPCODE:
1300 SV * callback 1764{
1765 int ifd = s_fileno_croak (in_fh , 0);
1766 int ofd = s_fileno_croak (out_fh, 1);
1767 dREQ;
1768
1769 req->type = EIO_SENDFILE;
1770 req->sv1 = newSVsv (out_fh);
1771 req->int1 = ofd;
1772 req->sv2 = newSVsv (in_fh);
1773 req->int2 = ifd;
1774 req->offs = in_offset;
1775 req->size = length;
1776
1777 REQ_SEND;
1778}
1779
1780void
1781aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1782 PPCODE:
1783{
1784 int fd = s_fileno_croak (fh, 0);
1785 dREQ;
1786
1787 req->type = EIO_READAHEAD;
1788 req->sv1 = newSVsv (fh);
1789 req->int1 = fd;
1790 req->offs = offset;
1791 req->size = length;
1792
1793 REQ_SEND;
1794}
1795
1796void
1797aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1301 ALIAS: 1798 ALIAS:
1799 aio_stat = EIO_STAT
1800 aio_lstat = EIO_LSTAT
1801 aio_statvfs = EIO_STATVFS
1802 PPCODE:
1803{
1804 dREQ;
1805
1806 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1807
1808 REQ_SEND;
1809}
1810
1811void
1812st_xtime ()
1813 ALIAS:
1814 st_atime = 0x01
1815 st_mtime = 0x02
1816 st_ctime = 0x04
1817 st_btime = 0x08
1818 st_xtime = 0x0f
1819 PPCODE:
1820 EXTEND (SP, 4);
1821 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1822 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1823 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1824 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1825
1826void
1827st_xtimensec ()
1828 ALIAS:
1829 st_atimensec = 0x01
1830 st_mtimensec = 0x02
1831 st_ctimensec = 0x04
1832 st_btimensec = 0x08
1833 st_xtimensec = 0x0f
1834 st_btimesec = 0x10
1835 st_gen = 0x20
1836 PPCODE:
1837 EXTEND (SP, 4);
1838 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1839 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1840 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1841 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1842 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1843 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1844
1845UV
1846major (UV dev)
1847 ALIAS:
1848 minor = 1
1849 CODE:
1850 RETVAL = ix ? minor (dev) : major (dev);
1851 OUTPUT:
1852 RETVAL
1853
1854UV
1855makedev (UV maj, UV min)
1856 CODE:
1857 RETVAL = makedev (maj, min);
1858 OUTPUT:
1859 RETVAL
1860
1861void
1862aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1863 PPCODE:
1864{
1865 dREQ;
1866
1867 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1868 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1869 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1870
1871 REQ_SEND;
1872}
1873
1874void
1875aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1876 PPCODE:
1877{
1878 dREQ;
1879
1880 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1881 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1882
1883 REQ_SEND;
1884}
1885
1886void
1887aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1888 PPCODE:
1889{
1890 dREQ;
1891
1892 req->int2 = mode;
1893 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1894
1895 REQ_SEND;
1896}
1897
1898void
1899aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1900 PPCODE:
1901{
1902 dREQ;
1903
1904 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1905 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1906 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1907
1908 REQ_SEND;
1909}
1910
1911void
1912aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1913 PPCODE:
1914{
1915 dREQ;
1916
1917 req->type = EIO_READDIR;
1918 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1919
1920 if (flags & EIO_READDIR_DENTS)
1921 req->int1 |= EIO_READDIR_CUSTOM2;
1922
1923 req_set_path1 (req, pathname);
1924
1925 REQ_SEND;
1926}
1927
1928void
1929aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1930 PPCODE:
1931{
1932 dREQ;
1933
1934 req->type = EIO_MKDIR;
1935 req->int2 = mode;
1936 req_set_path1 (req, pathname);
1937
1938 REQ_SEND;
1939}
1940
1941void
1942aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1943 ALIAS:
1302 aio_unlink = REQ_UNLINK 1944 aio_unlink = EIO_UNLINK
1303 aio_rmdir = REQ_RMDIR 1945 aio_rmdir = EIO_RMDIR
1304 aio_readdir = REQ_READDIR 1946 aio_readdir = EIO_READDIR
1305 PPCODE: 1947 PPCODE:
1306{ 1948{
1307 dREQ; 1949 dREQ;
1308 1950
1309 req->type = ix; 1951 req->type = ix;
1310 req->data = newSVsv (pathname); 1952 req_set_path1 (req, pathname);
1311 req->dataptr = SvPVbyte_nolen (req->data); 1953
1312
1313 REQ_SEND; 1954 REQ_SEND;
1314} 1955}
1315 1956
1316void 1957void
1317aio_link (oldpath,newpath,callback=&PL_sv_undef) 1958aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1318 SV * oldpath
1319 SV * newpath
1320 SV * callback
1321 ALIAS: 1959 ALIAS:
1322 aio_link = REQ_LINK 1960 aio_link = EIO_LINK
1323 aio_symlink = REQ_SYMLINK 1961 aio_symlink = EIO_SYMLINK
1324 aio_rename = REQ_RENAME 1962 aio_rename = EIO_RENAME
1325 PPCODE: 1963 PPCODE:
1326{ 1964{
1965 eio_wd wd2 = 0;
1327 dREQ; 1966 dREQ;
1328 1967
1329 req->type = ix; 1968 req->type = ix;
1330 req->fh = newSVsv (oldpath); 1969 req_set_path1 (req, oldpath);
1331 req->data2ptr = SvPVbyte_nolen (req->fh); 1970 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1332 req->data = newSVsv (newpath); 1971 req->int3 = (long)wd2;
1333 req->dataptr = SvPVbyte_nolen (req->data);
1334 1972
1335 REQ_SEND; 1973 REQ_SEND;
1336} 1974}
1337 1975
1338void 1976void
1339aio_busy (delay,callback=&PL_sv_undef) 1977aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1340 double delay
1341 SV * callback
1342 PPCODE: 1978 PPCODE:
1343{ 1979{
1980 eio_wd wd2 = 0;
1344 dREQ; 1981 dREQ;
1345 1982
1346 req->type = REQ_BUSY; 1983 req->type = EIO_RENAME;
1347 req->fd = delay < 0. ? 0 : delay; 1984 req_set_path1 (req, oldpath);
1348 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1985 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1349 1986 req->int2 = flags;
1987 req->int3 = (long)wd2;
1988
1350 REQ_SEND; 1989 REQ_SEND;
1351} 1990}
1352 1991
1353void 1992void
1993aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1994 PPCODE:
1995{
1996 dREQ;
1997
1998 req->type = EIO_MKNOD;
1999 req->int2 = (mode_t)mode;
2000 req->offs = dev;
2001 req_set_path1 (req, pathname);
2002
2003 REQ_SEND;
2004}
2005
2006void
2007aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
2008 ALIAS:
2009 aio_mtouch = EIO_MTOUCH
2010 aio_msync = EIO_MSYNC
2011 PPCODE:
2012{
2013 STRLEN svlen;
2014 char *svptr = SvPVbyte (data, svlen);
2015 UV len = SvUV (length);
2016
2017 if (flags < 0)
2018 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
2019
2020 if (offset < 0)
2021 offset += svlen;
2022
2023 if (offset < 0 || offset > svlen)
2024 croak ("offset outside of scalar");
2025
2026 if (!SvOK (length) || len + offset > svlen)
2027 len = svlen - offset;
2028
2029 {
2030 dREQ;
2031
2032 req->type = ix;
2033 req->sv2 = SvREFCNT_inc (data);
2034 req->ptr2 = (char *)svptr + offset;
2035 req->size = len;
2036 req->int1 = flags;
2037
2038 REQ_SEND;
2039 }
2040}
2041
2042void
2043aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
2044 PPCODE:
2045{
2046 STRLEN svlen;
2047 char *svptr = SvPVbyte (data, svlen);
2048 UV len = SvUV (length);
2049
2050 if (offset < 0)
2051 offset += svlen;
2052
2053 if (offset < 0 || offset > svlen)
2054 croak ("offset outside of scalar");
2055
2056 if (!SvOK (length) || len + offset > svlen)
2057 len = svlen - offset;
2058
2059 {
2060 dREQ;
2061
2062 req->type = EIO_MLOCK;
2063 req->sv2 = SvREFCNT_inc (data);
2064 req->ptr2 = (char *)svptr + offset;
2065 req->size = len;
2066
2067 REQ_SEND;
2068 }
2069}
2070
2071void
2072aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2073 PPCODE:
2074{
2075 dREQ;
2076
2077 req->type = EIO_MLOCKALL;
2078 req->int1 = flags;
2079
2080 REQ_SEND;
2081}
2082
2083void
2084aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2085 PPCODE:
2086{
2087 int fd = s_fileno_croak (fh, 0);
2088 dREQ;
2089
2090 req->type = EIO_CUSTOM;
2091 req->sv1 = newSVsv (fh);
2092 req->int1 = fd;
2093
2094 req->feed = fiemap;
2095#if HAVE_FIEMAP
2096 /* keep our fingers crossed that the next two types are 64 bit */
2097 req->offs = start;
2098 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2099 req->int2 = flags;
2100 req->int3 = SvOK (count) ? SvIV (count) : -1;
2101#endif
2102
2103 REQ_SEND;
2104}
2105
2106void
2107aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
2108 PPCODE:
2109{
2110 char *svptr = 0;
2111
2112 sv_clear_foreign (data);
2113
2114 if (length) /* known length, directly read into scalar */
2115 {
2116 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2117 svptr = sv_grow (data, length + 1);
2118 else if (SvCUR (data) < length)
2119 croak ("length outside of scalar, and cannot grow");
2120 else
2121 svptr = SvPVbyte_nolen (data);
2122 }
2123
2124 {
2125 dREQ;
2126
2127 req->type = EIO_SLURP;
2128 req_set_path1 (req, pathname);
2129 req->offs = offset;
2130 req->size = length;
2131 req->sv2 = SvREFCNT_inc (data);
2132 req->ptr2 = svptr;
2133
2134 if (!SvREADONLY (data))
2135 {
2136 SvREADONLY_on (data);
2137 req->flags |= FLAG_SV2_RO_OFF;
2138 }
2139
2140 REQ_SEND;
2141 }
2142}
2143
2144void
2145aio_busy (double delay, SV *callback = &PL_sv_undef)
2146 PPCODE:
2147{
2148 dREQ;
2149
2150 req->type = EIO_BUSY;
2151 req->nv1 = delay < 0. ? 0. : delay;
2152
2153 REQ_SEND;
2154}
2155
2156void
1354aio_group (callback=&PL_sv_undef) 2157aio_group (SV *callback = &PL_sv_undef)
1355 SV * callback 2158 PPCODE:
2159{
2160 dREQ;
2161
2162 req->type = EIO_GROUP;
2163
2164 PUTBACK;
2165 req_submit (req);
2166 SPAGAIN;
2167
2168 XPUSHs (req_sv (req, aio_grp_stash));
2169}
2170
2171void
2172aio_nop (SV *callback = &PL_sv_undef)
2173 ALIAS:
2174 aio_nop = EIO_NOP
2175 aio_sync = EIO_SYNC
2176 PPCODE:
2177{
2178 dREQ;
2179
2180 req->type = ix;
2181
2182 REQ_SEND;
2183}
2184
2185int
2186aioreq_pri (int pri = NO_INIT)
2187 CODE:
2188 RETVAL = next_pri;
2189 if (items > 0)
2190 {
2191 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
2192 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
2193 next_pri = pri;
2194 }
2195 OUTPUT:
2196 RETVAL
2197
2198void
2199aioreq_nice (int nice = 0)
2200 CODE:
2201 nice = next_pri - nice;
2202 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
2203 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
2204 next_pri = nice;
2205
2206void
2207flush ()
2208 CODE:
2209 while (eio_nreqs ())
2210 {
2211 poll_wait ();
2212 poll_cb ();
2213 }
2214
2215int
2216poll ()
2217 CODE:
2218 poll_wait ();
2219 RETVAL = poll_cb ();
2220 OUTPUT:
2221 RETVAL
2222
2223int
2224poll_fileno ()
2225 CODE:
2226 RETVAL = s_epipe_fd (&respipe);
2227 OUTPUT:
2228 RETVAL
2229
2230int
2231poll_cb (...)
2232 PROTOTYPE:
2233 CODE:
2234 RETVAL = poll_cb ();
2235 OUTPUT:
2236 RETVAL
2237
2238void
2239poll_wait ()
2240 CODE:
2241 poll_wait ();
2242
2243int
2244nreqs ()
2245 CODE:
2246 RETVAL = eio_nreqs ();
2247 OUTPUT:
2248 RETVAL
2249
2250int
2251nready ()
2252 CODE:
2253 RETVAL = eio_nready ();
2254 OUTPUT:
2255 RETVAL
2256
2257int
2258npending ()
2259 CODE:
2260 RETVAL = eio_npending ();
2261 OUTPUT:
2262 RETVAL
2263
2264int
2265nthreads ()
2266 CODE:
2267 RETVAL = eio_nthreads ();
2268 OUTPUT:
2269 RETVAL
2270
2271int
2272fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2273 CODE:
2274 RETVAL = posix_fadvise (fh, offset, length, advice);
2275 OUTPUT:
2276 RETVAL
2277
2278IV
2279sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2280 CODE:
2281 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2282 OUTPUT:
2283 RETVAL
2284
2285void
2286mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2287 PPCODE:
2288 sv_clear_foreign (scalar);
2289{
2290 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2291 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2292 if (addr == (void *)-1)
2293 XSRETURN_NO;
2294
2295 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2296
2297 if (!(prot & PROT_WRITE))
2298 SvREADONLY_on (scalar);
2299
2300 XSRETURN_YES;
2301}
2302
2303void
2304munmap (SV *scalar)
2305 CODE:
2306 sv_clear_foreign (scalar);
2307
2308SV *
2309mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2310 CODE:
2311{
2312 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2313 void *new;
2314
2315 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2316 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2317
2318 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2319
2320 RETVAL = &PL_sv_no;
2321
2322 if (new != (void *)-1)
2323 {
2324 RETVAL = new == (void *)mg->mg_ptr
2325 ? newSVpvn ("0 but true", 10)
2326 : &PL_sv_yes;
2327
2328 mg->mg_ptr = (char *)new;
2329 mg->mg_obj = (SV *)new_length;
2330
2331 SvPVX (scalar) = mg->mg_ptr;
2332 SvCUR_set (scalar, new_length);
2333 }
2334}
2335 OUTPUT:
2336 RETVAL
2337
2338int
2339madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2340 ALIAS:
2341 mprotect = 1
2342 CODE:
2343{
2344 STRLEN svlen;
2345 void *addr = SvPVbyte (scalar, svlen);
2346 STRLEN len = SvUV (length);
2347
2348 if (offset < 0)
2349 offset += svlen;
2350
2351 if (offset < 0 || offset > svlen)
2352 croak ("offset outside of scalar");
2353
2354 if (!SvOK (length) || len + offset > svlen)
2355 len = svlen - offset;
2356
2357 addr = (void *)(((intptr_t)addr) + offset);
2358 eio_page_align (&addr, &len);
2359
2360 switch (ix)
2361 {
2362 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2363 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2364 }
2365}
2366 OUTPUT:
2367 RETVAL
2368
2369int
2370munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2371 CODE:
2372{
2373 STRLEN svlen;
2374 void *addr = SvPVbyte (scalar, svlen);
2375 size_t len = SvUV (length);
2376
2377 if (offset < 0)
2378 offset += svlen;
2379
2380 if (offset < 0 || offset > svlen)
2381 croak ("offset outside of scalar");
2382
2383 if (!SvOK (length) || len + offset > svlen)
2384 len = svlen - offset;
2385
2386 addr = (void *)(((intptr_t)addr) + offset);
2387 eio_page_align (&addr, &len);
2388#if _POSIX_MEMLOCK_RANGE
2389 RETVAL = munlock (addr, len);
2390#else
2391 RETVAL = EIO_ENOSYS ();
2392#endif
2393}
2394 OUTPUT:
2395 RETVAL
2396
2397int
2398mlockall (int flags)
2399 PROTOTYPE: $;
2400 CODE:
2401 RETVAL = eio_mlockall_sync (flags);
2402 OUTPUT:
2403 RETVAL
2404
2405int
2406munlockall ()
2407 CODE:
2408#if _POSIX_MEMLOCK
2409 munlockall ();
2410#else
2411 RETVAL = EIO_ENOSYS ();
2412#endif
2413 OUTPUT:
2414 RETVAL
2415
2416int
2417statx (SV8 *pathname, int flags, UV mask)
2418 CODE:
2419{
2420 /* undocumented, and might go away, and anyway, should use eio_statx */
2421 SV *wdsv = 0;
2422 SV *pathsv = 0;
2423 eio_wd wd = EIO_CWD;
2424 void *ptr;
2425 int res;
2426
2427 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2428 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2429
2430 SvREFCNT_dec (pathsv);
2431 SvREFCNT_dec (wdsv);
2432}
2433 OUTPUT:
2434 RETVAL
2435
2436U32
2437stx_mode ()
2438 PROTOTYPE:
2439 CODE:
2440#if HAVE_STATX
2441 RETVAL = stx.stx_mode;
2442#else
2443 XSRETURN_UNDEF;
2444#endif
2445 OUTPUT:
2446 RETVAL
2447
2448#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2449#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2450#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2451#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2452#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2453#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2454#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2455#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2456#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2457#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2458#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2459#define STATX_OFFSET_size statx_offsetof (stx_size)
2460#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2461#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2462#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2463#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2464#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2465#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2466
2467U32
2468stx_mask ()
2469 PROTOTYPE:
2470 ALIAS:
2471 stx_mask = STATX_OFFSET_mask
2472 stx_blksize = STATX_OFFSET_blksize
2473 stx_nlink = STATX_OFFSET_nlink
2474 stx_uid = STATX_OFFSET_uid
2475 stx_gid = STATX_OFFSET_gid
2476 stx_rdev_major = STATX_OFFSET_rdev_major
2477 stx_rdev_minor = STATX_OFFSET_rdev_minor
2478 stx_dev_major = STATX_OFFSET_dev_major
2479 stx_dev_minor = STATX_OFFSET_dev_minor
2480 CODE:
2481#if HAVE_STATX
2482 RETVAL = *(__u32 *)((char *)&stx + ix);
2483#else
2484 XSRETURN_UNDEF;
2485#endif
2486 OUTPUT:
2487 RETVAL
2488
2489VAL64
2490stx_attributes ()
2491 PROTOTYPE:
2492 ALIAS:
2493 stx_attributes = STATX_OFFSET_attributes
2494 stx_ino = STATX_OFFSET_ino
2495 stx_size = STATX_OFFSET_size
2496 stx_blocks = STATX_OFFSET_blocks
2497 stx_attributes_mask = STATX_OFFSET_attributes_mask
2498 CODE:
2499#if HAVE_STATX
2500 RETVAL = *(__u64 *)((char *)&stx + ix);
2501#else
2502 XSRETURN_UNDEF;
2503#endif
2504 OUTPUT:
2505 RETVAL
2506
2507NV
2508stx_atime ()
2509 PROTOTYPE:
2510 ALIAS:
2511 stx_atime = STATX_OFFSET_atime
2512 stx_btime = STATX_OFFSET_btime
2513 stx_ctime = STATX_OFFSET_ctime
2514 stx_mtime = STATX_OFFSET_mtime
2515 CODE:
2516#if HAVE_STATX
2517 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2518 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2519#else
2520 XSRETURN_UNDEF;
2521#endif
2522 OUTPUT:
2523 RETVAL
2524
2525VAL64
2526stx_atimesec ()
2527 PROTOTYPE:
2528 ALIAS:
2529 stx_atimesec = STATX_OFFSET_atime
2530 stx_btimesec = STATX_OFFSET_btime
2531 stx_ctimesec = STATX_OFFSET_ctime
2532 stx_mtimesec = STATX_OFFSET_mtime
2533 CODE:
2534#if HAVE_STATX
2535 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2536 RETVAL = ts->tv_sec;
2537#else
2538 XSRETURN_UNDEF;
2539#endif
2540 OUTPUT:
2541 RETVAL
2542
2543U32
2544stx_atimensec ()
2545 PROTOTYPE:
2546 ALIAS:
2547 stx_atimensec = STATX_OFFSET_atime
2548 stx_btimensec = STATX_OFFSET_btime
2549 stx_ctimensec = STATX_OFFSET_ctime
2550 stx_mtimensec = STATX_OFFSET_mtime
2551 CODE:
2552#if HAVE_STATX
2553 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2554 RETVAL = ts->tv_nsec;
2555#else
2556 RETVAL = 0;
2557#endif
2558 OUTPUT:
2559 RETVAL
2560
2561void
2562accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2563 PPCODE:
2564{
2565 SV *retval;
2566#if HAVE_ACCEPT4
2567 socklen_t salen_ = salen ? salen + 1 : 0;
2568
2569 if (salen)
2570 {
2571 sv_upgrade (sockaddr, SVt_PV);
2572 sv_grow (sockaddr, salen_);
2573 }
2574
2575 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2576
2577 retval = newmortalFH (res, O_RDWR);
2578
2579 if (res >= 0 && salen > 0)
2580 {
2581 if (salen_ > salen + 1)
2582 salen_ = salen + 1;
2583
2584 SvPOK_only (sockaddr);
2585 SvCUR_set (sockaddr, salen_);
2586 }
2587#else
2588 errno = ENOSYS;
2589 retval = &PL_sv_undef;
2590#endif
2591 XPUSHs (retval);
2592}
2593
2594ssize_t
2595splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2596 CODE:
2597{
2598#if HAVE_LINUX_SPLICE
2599 loff_t off_in_, off_out_;
2600 RETVAL = splice (
2601 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2602 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2603 length, flags
2604 );
2605#else
2606 RETVAL = EIO_ENOSYS ();
2607#endif
2608}
2609 OUTPUT:
2610 RETVAL
2611
2612ssize_t
2613tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2614 CODE:
2615#if HAVE_LINUX_SPLICE
2616 RETVAL = tee (rfh, wfh, length, flags);
2617#else
2618 RETVAL = EIO_ENOSYS ();
2619#endif
2620 OUTPUT:
2621 RETVAL
2622
2623int
2624pipesize (aio_rfd rfh, int new_size = -1)
2625 PROTOTYPE: $;$
2626 CODE:
2627#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2628 if (new_size >= 0)
2629 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2630 else
2631 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2632#else
2633 errno = ENOSYS;
2634 RETVAL = -1;
2635#endif
2636 OUTPUT:
2637 RETVAL
2638
2639void
2640pipe2 (int flags = 0)
1356 PROTOTYPE: ;$ 2641 PROTOTYPE: ;$
1357 PPCODE: 2642 PPCODE:
1358{ 2643{
1359 dREQ; 2644 int fd[2];
2645 int res;
1360 2646
1361 req->type = REQ_GROUP; 2647 if (flags)
1362 req_send (req); 2648#if HAVE_PIPE2
2649 res = pipe2 (fd, flags);
2650#else
2651 res = (errno = ENOSYS, -1);
2652#endif
2653 else
2654 res = pipe (fd);
1363 2655
1364 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2656 if (!res)
2657 {
2658 EXTEND (SP, 2);
2659 PUSHs (newmortalFH (fd[0], O_RDONLY));
2660 PUSHs (newmortalFH (fd[1], O_WRONLY));
2661 }
1365} 2662}
1366 2663
1367void 2664void
1368aio_nop (callback=&PL_sv_undef) 2665pidfd_open (int pid, unsigned int flags = 0)
1369 SV * callback
1370 PPCODE: 2666 PPCODE:
1371{ 2667{
1372 dREQ; 2668 /*GENDEF0_SYSCALL(pidfd_open,434)*/
1373 2669 int fd = syscall (SYS_pidfd_open, pid, flags);
1374 req->type = REQ_NOP; 2670 XPUSHs (newmortalFH (fd, O_RDWR));
1375
1376 REQ_SEND;
1377} 2671}
1378 2672
1379void 2673int
1380aioreq_pri (int pri = DEFAULT_PRI) 2674pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
1381 CODE: 2675 PPCODE:
1382 if (pri < PRI_MIN) pri = PRI_MIN; 2676{
1383 if (pri > PRI_MAX) pri = PRI_MAX; 2677 int res;
1384 next_pri = pri + PRI_BIAS; 2678 siginfo_t si = { 0 };
1385 2679
1386void 2680 if (SvOK (siginfo))
1387aioreq_nice (int nice = 0) 2681 {
1388 CODE: 2682 HV *hv;
1389 nice = next_pri - nice; 2683 SV **svp;
1390 if (nice < PRI_MIN) nice = PRI_MIN;
1391 if (nice > PRI_MAX) nice = PRI_MAX;
1392 next_pri = nice + PRI_BIAS;
1393 2684
2685 if (!SvROK (siginfo) || SvTYPE (SvRV (siginfo)) != SVt_PVHV)
2686 croak ("siginfo argument must be a hashref code, pid, uid and value_int or value_ptr members, caught");
2687
2688 hv = (HV *)SvRV (siginfo);
2689
2690 if ((svp = hv_fetchs (hv, "code" , 0))) si.si_code = SvIV (*svp);
2691 if ((svp = hv_fetchs (hv, "pid" , 0))) si.si_pid = SvIV (*svp);
2692 if ((svp = hv_fetchs (hv, "uid" , 0))) si.si_uid = SvIV (*svp);
2693 if ((svp = hv_fetchs (hv, "value_int", 0))) si.si_value.sival_int = SvIV (*svp);
2694 if ((svp = hv_fetchs (hv, "value_ptr", 0))) si.si_value.sival_ptr = (void *)SvIV (*svp);
2695 }
2696
2697 /*GENDEF0_SYSCALL(pidfd_send_signal,424)*/
2698 res = syscall (SYS_pidfd_send_signal, s_fileno_croak (pidfh, 0), sig, SvOK (siginfo) ? &si : 0, flags);
2699
2700 XPUSHs (sv_2mortal (newSViv (res)));
2701}
2702
1394void 2703void
1395flush () 2704pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
1396 PROTOTYPE: 2705 PPCODE:
2706{
2707 /*GENDEF0_SYSCALL(pidfd_getfd,438)*/
2708 int fd = syscall (SYS_pidfd_getfd, s_fileno_croak (pidfh, 0), targetfd, flags);
2709 XPUSHs (newmortalFH (fd, O_RDWR));
2710}
2711
2712void
2713eventfd (unsigned int initval = 0, int flags = 0)
2714 PPCODE:
2715{
2716 int fd;
2717#if HAVE_EVENTFD
2718 fd = eventfd (initval, flags);
2719#else
2720 fd = (errno = ENOSYS, -1);
2721#endif
2722
2723 XPUSHs (newmortalFH (fd, O_RDWR));
2724}
2725
2726void
2727timerfd_create (int clockid, int flags = 0)
2728 PPCODE:
2729{
2730 int fd;
2731#if HAVE_TIMERFD
2732 fd = timerfd_create (clockid, flags);
2733#else
2734 fd = (errno = ENOSYS, -1);
2735#endif
2736
2737 XPUSHs (newmortalFH (fd, O_RDWR));
2738}
2739
2740void
2741timerfd_settime (SV *fh, int flags, NV interval, NV value)
2742 PPCODE:
2743{
2744 int fd = s_fileno_croak (fh, 0);
2745#if HAVE_TIMERFD
2746 int res;
2747 struct itimerspec its, ots;
2748
2749 ts_set (&its.it_interval, interval);
2750 ts_set (&its.it_value , value);
2751 res = timerfd_settime (fd, flags, &its, &ots);
2752
2753 if (!res)
2754 {
2755 EXTEND (SP, 2);
2756 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2757 PUSHs (newSVnv (ts_get (&ots.it_value)));
2758 }
2759#else
2760 errno = ENOSYS;
2761#endif
2762}
2763
2764void
2765timerfd_gettime (SV *fh)
2766 PPCODE:
2767{
2768 int fd = s_fileno_croak (fh, 0);
2769#if HAVE_TIMERFD
2770 int res;
2771 struct itimerspec ots;
2772 res = timerfd_gettime (fd, &ots);
2773
2774 if (!res)
2775 {
2776 EXTEND (SP, 2);
2777 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2778 PUSHs (newSVnv (ts_get (&ots.it_value)));
2779 }
2780#else
2781 errno = ENOSYS;
2782#endif
2783}
2784
2785void
2786memfd_create (SV8 *pathname, int flags = 0)
2787 PPCODE:
2788{
2789 int fd;
2790#if HAVE_MEMFD_CREATE
2791 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2792#else
2793 fd = (errno = ENOSYS, -1);
2794#endif
2795
2796 XPUSHs (newmortalFH (fd, O_RDWR));
2797}
2798
2799UV
2800get_fdlimit ()
1397 CODE: 2801 CODE:
1398 while (nreqs) 2802#if HAVE_RLIMITS
2803 struct rlimit rl;
2804 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2805 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2806#endif
2807 XSRETURN_UNDEF;
2808 OUTPUT:
2809 RETVAL
2810
2811void
2812min_fdlimit (UV limit = 0x7fffffffU)
2813 CODE:
2814{
2815#if HAVE_RLIMITS
2816 struct rlimit rl;
2817 rlim_t orig_rlim_max;
2818 UV bit;
2819
2820 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2821 goto fail;
2822
2823 if (rl.rlim_cur == RLIM_INFINITY)
2824 XSRETURN_YES;
2825
2826 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2827
2828 if (rl.rlim_cur < limit)
1399 { 2829 {
1400 poll_wait (); 2830 rl.rlim_cur = limit;
1401 poll_cb (0); 2831
2832 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2833 rl.rlim_max = rl.rlim_cur;
1402 } 2834 }
1403 2835
1404void 2836 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
1405poll() 2837 XSRETURN_YES;
1406 PROTOTYPE: 2838
2839 if (errno == EPERM)
2840 {
2841 /* setrlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2842 /* our limit overflows a system-wide limit */
2843 /* try an adaptive algorithm, but do not lower the hardlimit */
2844 rl.rlim_max = 0;
2845 for (bit = 0x40000000U; bit; bit >>= 1)
2846 {
2847 rl.rlim_max |= bit;
2848 rl.rlim_cur = rl.rlim_max;
2849
2850 /* never decrease the hard limit */
2851 if (rl.rlim_max < orig_rlim_max)
2852 break;
2853
2854 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2855 rl.rlim_max &= ~bit; /* too high, remove bit again */
2856 }
2857
2858 /* now, raise the soft limit to the max permitted */
2859 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2860 {
2861 rl.rlim_cur = rl.rlim_max;
2862 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2863 errno = EPERM;
2864 }
2865 }
2866#endif
2867 fail:
2868 XSRETURN_UNDEF;
2869}
2870
2871void _on_next_submit (SV *cb)
1407 CODE: 2872 CODE:
1408 if (nreqs) 2873 SvREFCNT_dec (on_next_submit);
1409 { 2874 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1410 poll_wait ();
1411 poll_cb (0);
1412 }
1413 2875
1414int 2876PROTOTYPES: DISABLE
1415poll_fileno() 2877
1416 PROTOTYPE: 2878MODULE = IO::AIO PACKAGE = IO::AIO::WD
2879
2880BOOT:
2881{
2882 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2883 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2884}
2885
2886void
2887DESTROY (SV *self)
1417 CODE: 2888 CODE:
1418 RETVAL = respipe [0]; 2889{
1419 OUTPUT: 2890 aio_wd wd = SvAIO_WD (self);
1420 RETVAL 2891#if HAVE_AT
1421 2892 {
1422int 2893 SV *callback = &PL_sv_undef;
1423poll_cb(...) 2894 dREQ; /* clobbers next_pri :/ */
1424 PROTOTYPE: 2895 next_pri = req->pri; /* restore next_pri */
1425 CODE: 2896 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1426 RETVAL = poll_cb (0); 2897 req->type = EIO_WD_CLOSE;
1427 OUTPUT: 2898 req->wd = wd;
1428 RETVAL 2899 REQ_SEND;
1429 2900 }
1430int 2901#else
1431poll_some(int max = 0) 2902 eio_wd_close_sync (wd);
1432 PROTOTYPE: $ 2903#endif
1433 CODE: 2904}
1434 RETVAL = poll_cb (max);
1435 OUTPUT:
1436 RETVAL
1437
1438void
1439poll_wait()
1440 PROTOTYPE:
1441 CODE:
1442 if (nreqs)
1443 poll_wait ();
1444
1445int
1446nreqs()
1447 PROTOTYPE:
1448 CODE:
1449 RETVAL = nreqs;
1450 OUTPUT:
1451 RETVAL
1452
1453PROTOTYPES: DISABLE
1454 2905
1455MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2906MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1456 2907
1457void 2908void
1458cancel (aio_req_ornot req) 2909cancel (aio_req_ornot req)
1459 CODE: 2910 CODE:
1460 req_cancel (req); 2911 eio_cancel (req);
1461 2912
1462void 2913void
1463cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2914cb (aio_req_ornot req, SV *callback = NO_INIT)
1464 CODE: 2915 PPCODE:
2916{
2917 if (GIMME_V != G_VOID)
2918 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2919
2920 if (items > 1)
2921 {
2922 SV *cb_cv = get_cb (callback);
2923
1465 SvREFCNT_dec (req->callback); 2924 SvREFCNT_dec (req->callback);
1466 req->callback = newSVsv (callback); 2925 req->callback = SvREFCNT_inc (cb_cv);
2926 }
2927}
1467 2928
1468MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2929MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1469 2930
1470void 2931void
1471add (aio_req grp, ...) 2932add (aio_req grp, ...)
1472 PPCODE: 2933 PPCODE:
1473{ 2934{
1474 int i; 2935 int i;
1475 aio_req req;
1476 2936
1477 if (grp->fd == 2) 2937 if (grp->int1 == 2)
1478 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2938 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1479 2939
1480 for (i = 1; i < items; ++i ) 2940 for (i = 1; i < items; ++i )
1481 { 2941 {
2942 aio_req req;
2943
1482 if (GIMME_V != G_VOID) 2944 if (GIMME_V != G_VOID)
1483 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2945 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1484 2946
1485 req = SvAIO_REQ (ST (i)); 2947 req = SvAIO_REQ (ST (i));
1486 2948
1487 if (req) 2949 if (req)
1488 { 2950 eio_grp_add (grp, req);
1489 ++grp->length;
1490 req->grp = grp;
1491
1492 req->grp_prev = 0;
1493 req->grp_next = grp->grp_first;
1494
1495 if (grp->grp_first)
1496 grp->grp_first->grp_prev = req;
1497
1498 grp->grp_first = req;
1499 }
1500 } 2951 }
1501} 2952}
1502 2953
1503void 2954void
1504cancel_subs (aio_req_ornot req) 2955cancel_subs (aio_req_ornot req)
… …
1508void 2959void
1509result (aio_req grp, ...) 2960result (aio_req grp, ...)
1510 CODE: 2961 CODE:
1511{ 2962{
1512 int i; 2963 int i;
2964 AV *av;
2965
2966 grp->errorno = errno;
2967
1513 AV *av = newAV (); 2968 av = newAV ();
2969 av_extend (av, items - 1);
1514 2970
1515 for (i = 1; i < items; ++i ) 2971 for (i = 1; i < items; ++i )
1516 av_push (av, newSVsv (ST (i))); 2972 av_push (av, newSVsv (ST (i)));
1517 2973
1518 SvREFCNT_dec (grp->data); 2974 SvREFCNT_dec (grp->sv1);
1519 grp->data = (SV *)av; 2975 grp->sv1 = (SV *)av;
1520} 2976}
2977
2978void
2979errno (aio_req grp, int errorno = errno)
2980 CODE:
2981 grp->errorno = errorno;
1521 2982
1522void 2983void
1523limit (aio_req grp, int limit) 2984limit (aio_req grp, int limit)
1524 CODE: 2985 CODE:
1525 grp->fd2 = limit; 2986 eio_grp_limit (grp, limit);
1526 aio_grp_feed (grp);
1527 2987
1528void 2988void
1529feed (aio_req grp, SV *callback=&PL_sv_undef) 2989feed (aio_req grp, SV *callback = &PL_sv_undef)
1530 CODE: 2990 CODE:
1531{ 2991{
1532 SvREFCNT_dec (grp->fh2); 2992 SvREFCNT_dec (grp->sv2);
1533 grp->fh2 = newSVsv (callback); 2993 grp->sv2 = newSVsv (callback);
2994 grp->feed = aio_grp_feed;
1534 2995
1535 if (grp->fd2 <= 0) 2996 if (grp->int2 <= 0)
1536 grp->fd2 = 2; 2997 grp->int2 = 2;
1537 2998
1538 aio_grp_feed (grp); 2999 eio_grp_limit (grp, grp->int2);
1539} 3000}
1540 3001

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