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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.69 by root, Tue Oct 24 11:57:30 2006 UTC vs.
Revision 1.288 by root, Tue Dec 29 18:00:40 2020 UTC

1#if __linux 1#include "libeio/xthread.h"
2# define _GNU_SOURCE
3#endif
4
5#define _REENTRANT 1
6 2
7#include <errno.h> 3#include <errno.h>
8 4
9#include "EXTERN.h" 5#include "EXTERN.h"
10#include "perl.h" 6#include "perl.h"
11#include "XSUB.h" 7#include "XSUB.h"
8#include "perliol.h"
12 9
13#include "autoconf/config.h" 10#if !defined mg_findext
14 11# define mg_findext(sv,type,vtbl) mg_find (sv, type)
15#include <pthread.h> 12#endif
16 13
17#include <stddef.h> 14#include <stddef.h>
15#include <stdlib.h>
18#include <errno.h> 16#include <errno.h>
19#include <sys/time.h>
20#include <sys/select.h>
21#include <sys/types.h> 17#include <sys/types.h>
18#include <sys/socket.h>
22#include <sys/stat.h> 19#include <sys/stat.h>
23#include <limits.h> 20#include <limits.h>
24#include <unistd.h>
25#include <fcntl.h> 21#include <fcntl.h>
26#include <signal.h>
27#include <sched.h> 22#include <sched.h>
28 23
29#if HAVE_SENDFILE 24/* the incompetent fool that created musl keeps __linux__, refuses
30# 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>
31# include <sys/sendfile.h> 88 #include <sys/select.h>
32# 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
33# 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
34# include <sys/uio.h> 124# include <sys/uio.h>
35# elif __hpux 125#endif
36# include <sys/socket.h> 126
37# 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
38# 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
39# else 208# else
40# error sendfile support requested but not available 209# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
41# endif 210# endif
42#endif 211#endif
43 212
44/* used for struct dirent, AIX doesn't provide it */ 213#ifndef makedev
45#ifndef NAME_MAX 214# define makedev(maj,min) (((maj) << 8) | (min))
46# define NAME_MAX 4096
47#endif 215#endif
216#ifndef major
217# define major(dev) ((dev) >> 8)
218#endif
219#ifndef minor
220# define minor(dev) ((dev) & 0xff)
221#endif
48 222
49#if __ia64 223/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
50# define STACKSIZE 65536 224#ifdef __sun
51#elif __i386 || __x86_64 /* 16k is unreasonably high :( */ 225# undef PAGESIZE
52# 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>
53#else 234#else
54# define STACKSIZE 16384 235# define syscall(nr,...) (errno = ENOSYS, -1)
55#endif 236#endif
56 237
57/* buffer size for various temporary buffers */ 238/*****************************************************************************/
58#define AIO_BUFSIZE 65536
59 239
60#define dBUF \ 240#if !_POSIX_MAPPED_FILES
61 char *aio_buf = malloc (AIO_BUFSIZE); \ 241# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
62 if (!aio_buf) \ 242# define munmap(addr,length) EIO_ENOSYS ()
243#endif
244
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
63 return -1; 273 return 0;
274}
64 275
65#define fBUF free (aio_buf) 276static MGVTBL mmap_vtbl = {
66 277 0, 0, 0, 0, mmap_free
67enum {
68 REQ_QUIT,
69 REQ_OPEN, REQ_CLOSE,
70 REQ_READ, REQ_WRITE, REQ_READAHEAD,
71 REQ_SENDFILE,
72 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
73 REQ_FSYNC, REQ_FDATASYNC,
74 REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
75 REQ_READDIR,
76 REQ_LINK, REQ_SYMLINK,
77 REQ_GROUP, REQ_NOP,
78 REQ_BUSY,
79}; 278};
80 279
81#define AIO_REQ_KLASS "IO::AIO::REQ" 280static int ecb_cold
82#define AIO_GRP_KLASS "IO::AIO::GRP" 281sysfree_free (pTHX_ SV *sv, MAGIC *mg)
83
84typedef struct aio_cb
85{ 282{
86 struct aio_cb *volatile next; 283 free (mg->mg_ptr);
284 mg->mg_obj = 0; /* just in case */
87 285
88 SV *data, *callback; 286 SvREADONLY_off (sv);
89 SV *fh, *fh2;
90 void *dataptr, *data2ptr;
91 Stat_t *statdata;
92 off_t offset;
93 size_t length;
94 ssize_t result;
95 287
96 STRLEN dataoffset; 288 if (SvPVX (sv) != mg->mg_ptr)
97 int type; 289 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
98 int fd, fd2;
99 int errorno;
100 mode_t mode; /* open */
101 290
102 unsigned char flags; 291 SvCUR_set (sv, 0);
103 unsigned char pri; 292 SvPVX (sv) = 0;
293 SvOK_off (sv);
104 294
105 SV *self; /* the perl counterpart of this request, if any */ 295 return 0;
106 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 296}
107} aio_cb;
108 297
109enum { 298static MGVTBL sysfree_vtbl = {
110 FLAG_CANCELLED = 0x01, 299 0, 0, 0, 0, sysfree_free
111}; 300};
112 301
113typedef aio_cb *aio_req; 302/*****************************************************************************/
114typedef aio_cb *aio_req_ornot;
115 303
116enum { 304/* helper: set scalar to foreign ptr with custom free */
117 PRI_MIN = -4, 305ecb_noinline
118 PRI_MAX = 4, 306static void
307sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
308{
309 sv_force_normal (sv);
119 310
120 DEFAULT_PRI = 0, 311 /* we store the length in mg_obj, as namlen is I32 :/ */
121 PRI_BIAS = -PRI_MIN, 312 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
122 NUM_PRI = PRI_MAX + PRI_BIAS + 1, 313 ->mg_obj = (SV *)length;
123};
124 314
125static int next_pri = DEFAULT_PRI + PRI_BIAS; 315 SvUPGRADE (sv, SVt_PV); /* nop... */
126 316
127static int started, wanted; 317 if (SvLEN (sv))
128static volatile int nreqs; 318 Safefree (SvPVX (sv));
129static int max_outstanding = 1<<30;
130static int respipe [2];
131 319
132#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) 320 SvPVX (sv) = (char *)addr;
133# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP 321 SvCUR_set (sv, length);
134#else 322 SvLEN_set (sv, 0);
135# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER 323 SvPOK_only (sv);
136#endif 324}
137 325
138static pthread_mutex_t reslock = AIO_MUTEX_INIT; 326static void
139static pthread_mutex_t reqlock = AIO_MUTEX_INIT; 327sv_clear_foreign (SV *sv)
140static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; 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}
141 333
142/* 334/*****************************************************************************/
143 * a somewhat faster data structure might be nice, but 335
144 * with 8 priorities this actually needs <20 insns 336/* defines all sorts of constants to 0 unless they are already defined */
145 * per shift, the most expensive operation. 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.
146 */ 385 */
147typedef struct {
148 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
149 int size;
150} reqq;
151 386
152static reqq req_queue; 387 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
153static reqq res_queue;
154 388
155int reqq_push (reqq *q, aio_req req) 389 for (;;)
156{
157 int pri = req->pri;
158 req->next = 0;
159
160 if (q->qe[pri])
161 { 390 {
162 q->qe[pri]->next = req; 391 /* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
163 q->qe[pri] = req; 392 char scratch[3072];
164 } 393 struct fiemap *incmap = (struct fiemap *)scratch;
165 else
166 q->qe[pri] = q->qs[pri] = req;
167 394
168 return q->size++; 395 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
169} 396 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
397 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
398 incmap->fm_flags = fiemap->fm_flags;
399 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
170 400
171aio_req reqq_shift (reqq *q) 401 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
172{
173 int pri;
174
175 if (!q->size)
176 return 0; 402 return;
177 403
178 --q->size; 404 if (!incmap->fm_mapped_extents)
405 goto done;
179 406
180 for (pri = NUM_PRI; pri--; ) 407 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
181 { 408 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
182 aio_req req = q->qs[pri]; 409 errno = ENOMEM;
183
184 if (req) 410 if (!fiemap)
411 return;
412
413 req->ptr1 = fiemap;
414
415 for (count = 0; count < incmap->fm_mapped_extents; ++count)
185 { 416 {
186 if (!(q->qs[pri] = req->next)) 417 struct fiemap_extent *e = incmap->fm_extents + count;
187 q->qe[pri] = 0;
188 418
189 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
190 } 427 }
191 } 428 }
192 429
193 abort (); 430done:
194} 431 req->result = 0;
195 432
433#else
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
465static void req_destroy (aio_req req);
196static void req_invoke (aio_req req); 466static void req_cancel (aio_req req);
197static void req_free (aio_req req); 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}
198 481
199/* must be called at most once */ 482/* must be called at most once */
200static SV *req_sv (aio_req req, const char *klass) 483ecb_noinline
484static SV *
485req_sv (aio_req req, HV *stash)
201{ 486{
202 if (!req->self) 487 if (!req->self)
203 { 488 {
204 req->self = (SV *)newHV (); 489 req->self = (SV *)newHV ();
205 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 490 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
206 } 491 }
207 492
208 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 493 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
209} 494}
210 495
211static 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)
212{ 505{
213 MAGIC *mg; 506 MAGIC *mg;
214 507
215 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")))
216 croak ("object of class " AIO_REQ_KLASS " expected"); 513 croak ("object of class IO::AIO::REQ expected");
217 514
218 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 515 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
219 516
220 return mg ? (aio_req)mg->mg_ptr : 0; 517 return mg ? (aio_req)mg->mg_ptr : 0;
221} 518}
222 519
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
223static void aio_grp_feed (aio_req grp) 557aio_grp_feed (aio_req grp)
224{ 558{
225 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 559 if (grp->sv2 && SvOK (grp->sv2))
226 { 560 {
227 int old_len = grp->length;
228
229 if (grp->fh2 && SvOK (grp->fh2))
230 {
231 dSP; 561 dSP;
232 562
233 ENTER; 563 ENTER;
234 SAVETMPS; 564 SAVETMPS;
235 PUSHMARK (SP); 565 PUSHMARK (SP);
236 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 566 XPUSHs (req_sv (grp, aio_grp_stash));
237 PUTBACK; 567 PUTBACK;
238 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 568 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
239 SPAGAIN; 569 SPAGAIN;
240 FREETMPS; 570 FREETMPS;
241 LEAVE; 571 LEAVE;
242 }
243
244 /* stop if no progress has been made */
245 if (old_len == grp->length)
246 {
247 SvREFCNT_dec (grp->fh2);
248 grp->fh2 = 0;
249 break;
250 }
251 } 572 }
252} 573}
253 574
254static void aio_grp_dec (aio_req grp) 575ecb_noinline
576static void
577req_submit (eio_req *req)
255{ 578{
256 --grp->length; 579 eio_submit (req);
257 580
258 /* call feeder, if applicable */ 581 if (expect_false (on_next_submit))
259 aio_grp_feed (grp);
260
261 /* finish, if done */
262 if (!grp->length && grp->fd)
263 { 582 {
264 req_invoke (grp); 583 dSP;
265 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);
266 } 591 }
267} 592}
268 593
269static void poll_wait () 594static int
595req_invoke (eio_req *req)
270{ 596{
271 fd_set rfd; 597 if (req->flags & FLAG_SV2_RO_OFF)
598 SvREADONLY_off (req->sv2);
272 599
273 while (nreqs) 600 if (!EIO_CANCELLED (req) && req->callback)
274 { 601 {
275 int size;
276#if !(__i386 || __x86_64) /* safe without sempahore on this archs */
277 pthread_mutex_lock (&reslock);
278#endif
279 size = res_queue.size;
280#if !(__i386 || __x86_64) /* safe without sempahore on this archs */
281 pthread_mutex_unlock (&reslock);
282#endif
283
284 if (size)
285 return;
286
287 FD_ZERO(&rfd);
288 FD_SET(respipe [0], &rfd);
289
290 select (respipe [0] + 1, &rfd, 0, 0, 0);
291 }
292}
293
294static void req_invoke (aio_req req)
295{
296 dSP; 602 dSP;
297 603 static SV *sv_result_cache; /* caches the result integer SV */
298 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 604 SV *sv_result;
299 {
300 errno = req->errorno;
301 605
302 ENTER; 606 ENTER;
303 SAVETMPS; 607 SAVETMPS;
304 PUSHMARK (SP); 608 PUSHMARK (SP);
305 EXTEND (SP, 1); 609 EXTEND (SP, 1);
306 610
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
307 switch (req->type) 624 switch (req->type)
308 { 625 {
626 case EIO_WD_OPEN:
627 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
628 break;
629
309 case REQ_READDIR: 630 case EIO_READDIR:
310 { 631 {
311 SV *rv = &PL_sv_undef; 632 SV *rv = &PL_sv_undef;
312 633
313 if (req->result >= 0) 634 if (req->result >= 0)
314 { 635 {
636 int i;
315 char *buf = req->data2ptr; 637 char *names = (char *)req->ptr2;
638 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
316 AV *av = newAV (); 639 AV *av = newAV ();
317 640
318 while (req->result) 641 av_extend (av, req->result - 1);
642
643 for (i = 0; i < req->result; ++i)
319 { 644 {
645 if (req->int1 & EIO_READDIR_DENTS)
646 {
647 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
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
669 av_store (av, i, namesv);
670
671 ++ent;
672 }
673 else
674 {
320 SV *sv = newSVpv (buf, 0); 675 SV *name = newSVpv (names, 0);
321
322 av_push (av, sv); 676 av_store (av, i, name);
323 buf += SvCUR (sv) + 1; 677 names += SvCUR (name) + 1;
324 req->result--; 678 }
325 } 679 }
326 680
327 rv = sv_2mortal (newRV_noinc ((SV *)av)); 681 rv = sv_2mortal (newRV_noinc ((SV *)av));
328 } 682 }
329 683
330 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))));
331 } 688 }
332 break; 689 break;
333 690
334 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:
335 { 697 {
336 /* convert fd to fh */ 698 SV *rv = &PL_sv_undef;
337 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));
338 710
339 PUSHs (sv_2mortal (newSViv (req->result))); 711 rv = sv_2mortal (newRV_noinc ((SV *)hv));
340 PUTBACK;
341 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
342 SPAGAIN;
343 712
344 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
345 726
346 PUSHMARK (SP); 727 PUSHs (rv);
347 XPUSHs (sv_2mortal (fh));
348 } 728 }
729
349 break; 730 break;
350 731
351 case REQ_GROUP: 732 case EIO_GROUP:
352 req->fd = 2; /* mark group as finished */ 733 req->int1 = 2; /* mark group as finished */
353 734
354 if (req->data) 735 if (req->sv1)
355 { 736 {
356 int i; 737 int i;
357 AV *av = (AV *)req->data; 738 AV *av = (AV *)req->sv1;
358 739
359 EXTEND (SP, AvFILL (av) + 1); 740 EXTEND (SP, AvFILL (av) + 1);
360 for (i = 0; i <= AvFILL (av); ++i) 741 for (i = 0; i <= AvFILL (av); ++i)
361 PUSHs (*av_fetch (av, i, 0)); 742 PUSHs (*av_fetch (av, i, 0));
362 } 743 }
363 break; 744 break;
364 745
365 case REQ_NOP: 746 case EIO_NOP:
366 case REQ_BUSY: 747 case EIO_BUSY:
367 break; 748 break;
368 749
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
369 default: 857 default:
370 PUSHs (sv_2mortal (newSViv (req->result))); 858 PUSHs (sv_result);
371 break; 859 break;
372 } 860 }
373 861
862 errno = req->errorno;
374 863
375 PUTBACK; 864 PUTBACK;
376 call_sv (req->callback, G_VOID | G_EVAL); 865 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
377 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;
378 872
379 FREETMPS; 873 FREETMPS;
380 LEAVE; 874 LEAVE;
875
876 PUTBACK;
381 } 877 }
382 878
383 if (req->grp) 879 return !!SvTRUE (ERRSV);
384 {
385 aio_req grp = req->grp;
386
387 /* unlink request */
388 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
389 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
390
391 if (grp->grp_first == req)
392 grp->grp_first = req->grp_next;
393
394 aio_grp_dec (grp);
395 }
396
397 if (SvTRUE (ERRSV))
398 {
399 req_free (req);
400 croak (0);
401 }
402} 880}
403 881
404static void req_free (aio_req req) 882static void
883req_destroy (aio_req req)
405{ 884{
406 if (req->self) 885 if (req->self)
407 { 886 {
408 sv_unmagic (req->self, PERL_MAGIC_ext); 887 sv_unmagic (req->self, PERL_MAGIC_ext);
409 SvREFCNT_dec (req->self); 888 SvREFCNT_dec (req->self);
410 } 889 }
411 890
412 SvREFCNT_dec (req->data);
413 SvREFCNT_dec (req->fh); 891 SvREFCNT_dec (req->sv1);
414 SvREFCNT_dec (req->fh2); 892 SvREFCNT_dec (req->sv2);
893 SvREFCNT_dec (req->sv3);
894 SvREFCNT_dec (req->sv4);
415 SvREFCNT_dec (req->callback); 895 SvREFCNT_dec (req->callback);
416 Safefree (req->statdata);
417 896
418 if (req->type == REQ_READDIR && req->result >= 0)
419 free (req->data2ptr);
420
421 Safefree (req); 897 free (req);
422} 898}
423 899
424static void req_cancel (aio_req req) 900static void
901req_cancel_subs (aio_req grp)
425{ 902{
426 req->flags |= FLAG_CANCELLED;
427
428 if (req->type == REQ_GROUP) 903 if (grp->type != EIO_GROUP)
904 return;
905
906 SvREFCNT_dec (grp->sv2);
907 grp->sv2 = 0;
908
909 eio_grp_cancel (grp);
910}
911
912ecb_cold
913static void
914create_respipe (void)
915{
916 if (s_epipe_renew (&respipe))
917 croak ("IO::AIO: unable to initialize result pipe");
918}
919
920static void
921poll_wait (void)
922{
923 while (eio_nreqs ())
429 { 924 {
430 aio_req sub; 925 int size;
431 926
432 for (sub = req->grp_first; sub; sub = sub->grp_next) 927 X_LOCK (EIO_POOL->reslock);
433 req_cancel (sub); 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);
434 } 937 }
435} 938}
436 939
437static int poll_cb () 940static int
941poll_cb (void)
438{ 942{
439 dSP;
440 int count = 0;
441 int do_croak = 0;
442 aio_req req;
443
444 for (;;) 943 for (;;)
445 { 944 {
446 pthread_mutex_lock (&reslock); 945 int res = eio_poll ();
447 req = reqq_shift (&res_queue);
448 946
449 if (req) 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;
981 aio_req req;
982 int req_pri = next_pri;
983 next_pri = EIO_PRI_DEFAULT;
984
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)))
1014 {
1015 SV *rv = SvRV (path);
1016 SV *wdob;
1017
1018 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
450 { 1019 {
451 if (!res_queue.size) 1020 path = AvARRAY (rv)[1];
1021 wdob = AvARRAY (rv)[0];
1022
1023 if (SvOK (wdob))
452 { 1024 {
453 /* read any signals sent by the worker threads */ 1025 *wd = SvAIO_WD (wdob);
454 char buf [32]; 1026 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
455 while (read (respipe [0], buf, 32) == 32)
456 ;
457 } 1027 }
1028 else
1029 *wd = EIO_INVALID_WD;
458 } 1030 }
459 1031 else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
460 pthread_mutex_unlock (&reslock);
461
462 if (!req)
463 break;
464
465 --nreqs;
466
467 if (req->type == REQ_QUIT)
468 started--;
469 else if (req->type == REQ_GROUP && req->length)
470 { 1032 {
471 req->fd = 1; /* mark request as delayed */ 1033 *wd = (aio_wd)(long)SvIVX (rv);
472 continue; 1034 *wdsv = SvREFCNT_inc_NN (rv);
1035 *ptr = ".";
1036 return; /* path set to "." */
473 } 1037 }
474 else 1038 else
475 { 1039 croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
476 if (req->type == REQ_READ)
477 SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
478
479 if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
480 SvREADONLY_off (req->data);
481
482 if (req->statdata)
483 {
484 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
485 PL_laststatval = req->result;
486 PL_statcache = *(req->statdata);
487 }
488
489 req_invoke (req);
490
491 count++;
492 }
493
494 req_free (req);
495 } 1040 }
496 1041
497 return count; 1042 *pathsv = newSVsv (path);
1043 *ptr = SvPVbyte_nolen (*pathsv);
498} 1044}
499 1045
500static void *aio_proc(void *arg); 1046ecb_noinline
501 1047static void
502static void start_thread (void) 1048req_set_path1 (aio_req req, SV *path)
503{ 1049{
504 sigset_t fullsigset, oldsigset; 1050 req_set_path (path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
505 pthread_t tid;
506 pthread_attr_t attr;
507
508 pthread_attr_init (&attr);
509 pthread_attr_setstacksize (&attr, STACKSIZE);
510 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
511
512 sigfillset (&fullsigset);
513 sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
514
515 if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
516 started++;
517
518 sigprocmask (SIG_SETMASK, &oldsigset, 0);
519} 1051}
520 1052
521static void req_send (aio_req req) 1053ecb_noinline
1054static void
1055req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
522{ 1056{
523 while (started < wanted && nreqs >= started) 1057 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
524 start_thread ();
525 1058
526 ++nreqs; 1059 switch (SvTYPE (rv))
527
528 pthread_mutex_lock (&reqlock);
529 reqq_push (&req_queue, req);
530 pthread_cond_signal (&reqwait);
531 pthread_mutex_unlock (&reqlock);
532
533 if (nreqs > max_outstanding)
534 for (;;)
535 {
536 poll_cb ();
537
538 if (nreqs <= max_outstanding)
539 break;
540
541 poll_wait ();
542 }
543}
544
545static void end_thread (void)
546{
547 aio_req req;
548
549 Newz (0, req, 1, aio_cb);
550
551 req->type = REQ_QUIT;
552 req->pri = PRI_MAX + PRI_BIAS;
553
554 req_send (req);
555}
556
557static void min_parallel (int nthreads)
558{
559 if (wanted < nthreads)
560 wanted = nthreads;
561}
562
563static void max_parallel (int nthreads)
564{
565 int cur = started;
566
567 if (wanted > nthreads)
568 wanted = nthreads;
569
570 while (cur > wanted)
571 { 1060 {
572 end_thread (); 1061 case SVt_PVIO:
573 cur--; 1062 case SVt_PVLV:
1063 case SVt_PVGV:
1064 req->type = type_fh;
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;
574 } 1073 }
575
576 while (started > wanted)
577 {
578 poll_wait ();
579 poll_cb ();
580 }
581}
582
583static void create_pipe ()
584{
585 if (pipe (respipe))
586 croak ("unable to initialize result pipe");
587
588 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
589 croak ("cannot set result pipe to nonblocking mode");
590
591 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
592 croak ("cannot set result pipe to nonblocking mode");
593} 1074}
594 1075
595/*****************************************************************************/ 1076/*****************************************************************************/
596/* work around various missing functions */
597 1077
598#if !HAVE_PREADWRITE 1078static void
599# define pread aio_pread 1079ts_set (struct timespec *ts, NV value)
600# define pwrite aio_pwrite
601
602/*
603 * make our pread/pwrite safe against themselves, but not against
604 * normal read/write by using a mutex. slows down execution a lot,
605 * but that's your problem, not mine.
606 */
607static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
608
609static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
610{ 1080{
611 ssize_t res; 1081 ts->tv_sec = value;
612 off_t ooffset; 1082 ts->tv_nsec = (value - ts->tv_sec) * 1e9;
613
614 pthread_mutex_lock (&preadwritelock);
615 ooffset = lseek (fd, 0, SEEK_CUR);
616 lseek (fd, offset, SEEK_SET);
617 res = read (fd, buf, count);
618 lseek (fd, ooffset, SEEK_SET);
619 pthread_mutex_unlock (&preadwritelock);
620
621 return res;
622} 1083}
623 1084
624static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1085static NV
1086ts_get (const struct timespec *ts)
625{ 1087{
626 ssize_t res; 1088 return ts->tv_sec + ts->tv_nsec * 1e-9;
627 off_t ooffset;
628
629 pthread_mutex_lock (&preadwritelock);
630 ooffset = lseek (fd, 0, SEEK_CUR);
631 lseek (fd, offset, SEEK_SET);
632 res = write (fd, buf, count);
633 lseek (fd, offset, SEEK_SET);
634 pthread_mutex_unlock (&preadwritelock);
635
636 return res;
637} 1089}
638#endif
639 1090
640#if !HAVE_FDATASYNC 1091/*****************************************************************************/
641# define fdatasync fsync
642#endif
643 1092
644#if !HAVE_READAHEAD 1093XS(boot_IO__AIO) ecb_cold;
645# define readahead aio_readahead
646 1094
647static ssize_t readahead (int fd, off_t offset, size_t count) 1095MODULE = IO::AIO PACKAGE = IO::AIO
648{
649 dBUF;
650 1096
651 while (count > 0) 1097PROTOTYPES: ENABLE
652 {
653 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
654 1098
655 pread (fd, aio_buf, len, offset); 1099BOOT:
656 offset += len;
657 count -= len;
658 }
659
660 fBUF;
661
662 errno = 0;
663}
664#endif
665
666#if !HAVE_READDIR_R
667# define readdir_r aio_readdir_r
668
669static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
670
671static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
672{ 1100{
673 struct dirent *e; 1101 static const struct {
674 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 },
675 1108
676 pthread_mutex_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)
677 1114
678 e = readdir (dirp); 1115 /* for lseek */
679 errorno = errno; 1116 const_iv (SEEK_DATA)
1117 const_iv (SEEK_HOLE)
680 1118
681 if (e) 1119 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
682 { 1120 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
683 *res = ent; 1121 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
684 strcpy (ent->d_name, e->d_name); 1122 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
685 } 1123 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
686 else 1124 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
687 *res = 0;
688 1125
689 pthread_mutex_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)
690 1131
691 errno = errorno; 1132 /* the second block will be 0 when missing */
692 return e ? 0 : -1; 1133 const_iv (O_ACCMODE)
693}
694#endif
695 1134
696/* sendfile always needs emulation */ 1135 const_iv (O_RDONLY)
697static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) 1136 const_iv (O_WRONLY)
698{ 1137 const_iv (O_RDWR)
699 ssize_t res; 1138 const_iv (O_CREAT)
1139 const_iv (O_TRUNC)
1140 const_iv (O_EXCL)
1141 const_iv (O_APPEND)
700 1142
701 if (!count) 1143 const_iv (O_ASYNC)
702 return 0; 1144 const_iv (O_DIRECT)
1145 const_iv (O_NOATIME)
703 1146
704#if HAVE_SENDFILE 1147 const_iv (O_CLOEXEC)
705# if __linux 1148 const_iv (O_NOCTTY)
706 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)
707 1160
708# elif __freebsd 1161 const_iv (S_IFIFO)
709 /* 1162 const_iv (S_IFCHR)
710 * Of course, the freebsd sendfile is a dire hack with no thoughts 1163 const_iv (S_IFBLK)
711 * wasted on making it similar to other I/O functions. 1164 const_iv (S_IFLNK)
712 */ 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 */
713 { 1452 {
714 off_t sbytes; 1453 int pipefd [2];
715 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
716 1454
717 if (res < 0 && sbytes) 1455 if (
718 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ 1456#ifdef _WIN32
719 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];
720 } 1467 }
721 1468
722# elif __hpux 1469 reinit ();
723 res = sendfile (ofd, ifd, offset, count, 0, 0); 1470}
724 1471
725# 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))
726 { 1607 {
727 struct sendfilevec vec; 1608 fh = SvRV (fh);
728 size_t sbytes; 1609 SvGETMAGIC (fh);
729
730 vec.sfv_fd = ifd;
731 vec.sfv_flag = 0;
732 vec.sfv_off = offset;
733 vec.sfv_len = count;
734
735 res = sendfilev (ofd, &vec, 1, &sbytes);
736
737 if (res < 0 && sbytes)
738 res = sbytes;
739 } 1610 }
740 1611
741# endif 1612 if (SvTYPE (fh) == SVt_PVGV)
742#else
743 res = -1;
744 errno = ENOSYS;
745#endif
746
747 if (res < 0
748 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
749#if __solaris
750 || errno == EAFNOSUPPORT || errno == EPROTOTYPE
751#endif
752 )
753 )
754 {
755 /* emulate sendfile. this is a major pain in the ass */
756 dBUF;
757
758 res = 0;
759
760 while (count)
761 {
762 ssize_t cnt;
763
764 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
765
766 if (cnt <= 0)
767 {
768 if (cnt && !res) res = -1;
769 break;
770 }
771
772 cnt = write (ofd, aio_buf, cnt);
773
774 if (cnt <= 0)
775 {
776 if (cnt && !res) res = -1;
777 break;
778 }
779
780 offset += cnt;
781 res += cnt;
782 count -= cnt;
783 }
784
785 fBUF;
786 }
787
788 return res;
789}
790
791/* read a full directory */
792static int scandir_ (const char *path, void **namesp)
793{
794 DIR *dirp;
795 union
796 {
797 struct dirent d;
798 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
799 } *u;
800 struct dirent *entp;
801 char *name, *names;
802 int memlen = 4096;
803 int memofs = 0;
804 int res = 0;
805 int errorno;
806
807 dirp = opendir (path);
808 if (!dirp)
809 return -1;
810
811 u = malloc (sizeof (*u));
812 names = malloc (memlen);
813
814 if (u && names)
815 for (;;)
816 {
817 errno = 0;
818 readdir_r (dirp, &u->d, &entp);
819
820 if (!entp)
821 break;
822
823 name = entp->d_name;
824
825 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
826 { 1613 {
827 int len = strlen (name) + 1; 1614 /* perl filehandle */
1615 PerlIOUnix_refcnt_inc (fd);
1616 do_close ((GV *)fh, 1);
828 1617
829 res++; 1618 req->type = EIO_CLOSE;
830 1619 req->int1 = fd;
831 while (memofs + len > memlen) 1620 /*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
832 {
833 memlen *= 2;
834 names = realloc (names, memlen);
835 if (!names)
836 break;
837 }
838
839 memcpy (names + memofs, name, len);
840 memofs += len;
841 } 1621 }
842 }
843
844 errorno = errno;
845 free (u);
846 closedir (dirp);
847
848 if (errorno)
849 {
850 free (names);
851 errno = errorno;
852 res = -1;
853 }
854
855 *namesp = (void *)names;
856 return res;
857}
858
859/*****************************************************************************/
860
861static void *aio_proc (void *thr_arg)
862{
863 aio_req req;
864 int type;
865
866 do
867 {
868 pthread_mutex_lock (&reqlock);
869
870 for (;;)
871 { 1622 else
872 req = reqq_shift (&req_queue); 1623#endif
873
874 if (req)
875 break;
876
877 pthread_cond_wait (&reqwait, &reqlock);
878 }
879
880 pthread_mutex_unlock (&reqlock);
881
882 errno = 0; /* strictly unnecessary */
883 type = req->type; /* remember type for QUIT check */
884
885 if (!(req->flags & FLAG_CANCELLED))
886 switch (type)
887 { 1624 {
888 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 1625 /* fd number */
889 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 1626 req->type = EIO_DUP2;
890 1627 req->int1 = close_fd;
891 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 1628 req->sv2 = newSVsv (fh);
892 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; 1629 req->int2 = fd;
893
894 case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
895 case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
896 case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
897
898 case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
899 case REQ_CLOSE: req->result = close (req->fd); break;
900 case REQ_UNLINK: req->result = unlink (req->dataptr); break;
901 case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
902 case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
903 case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
904 case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
905
906 case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
907 case REQ_FSYNC: req->result = fsync (req->fd); break;
908 case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
909
910 case REQ_BUSY:
911 {
912 struct timeval tv;
913
914 tv.tv_sec = req->fd;
915 tv.tv_usec = req->fd2;
916
917 req->result = select (0, 0, 0, 0, &tv);
918 }
919
920 case REQ_GROUP:
921 case REQ_NOP:
922 case REQ_QUIT:
923 break;
924
925 default:
926 req->result = ENOSYS;
927 break;
928 } 1630 }
929 1631
930 req->errorno = errno; 1632 REQ_SEND;
931
932 pthread_mutex_lock (&reslock);
933
934 if (!reqq_push (&res_queue, req))
935 /* write a dummy byte to the pipe so fh becomes ready */
936 write (respipe [1], &respipe, 1);
937
938 pthread_mutex_unlock (&reslock);
939 }
940 while (type != REQ_QUIT);
941
942 return 0;
943} 1633}
944 1634
945/*****************************************************************************/
946
947static void atfork_prepare (void)
948{
949 pthread_mutex_lock (&reqlock);
950 pthread_mutex_lock (&reslock);
951#if !HAVE_PREADWRITE
952 pthread_mutex_lock (&preadwritelock);
953#endif
954#if !HAVE_READDIR_R
955 pthread_mutex_lock (&readdirlock);
956#endif
957}
958
959static void atfork_parent (void)
960{
961#if !HAVE_READDIR_R
962 pthread_mutex_unlock (&readdirlock);
963#endif
964#if !HAVE_PREADWRITE
965 pthread_mutex_unlock (&preadwritelock);
966#endif
967 pthread_mutex_unlock (&reslock);
968 pthread_mutex_unlock (&reqlock);
969}
970
971static void atfork_child (void)
972{
973 aio_req prv;
974
975 started = 0;
976
977 while (prv = reqq_shift (&req_queue))
978 req_free (prv);
979
980 while (prv = reqq_shift (&res_queue))
981 req_free (prv);
982
983 close (respipe [0]);
984 close (respipe [1]);
985 create_pipe ();
986
987 atfork_parent ();
988}
989
990#define dREQ \
991 aio_req req; \
992 int req_pri = next_pri; \
993 next_pri = DEFAULT_PRI + PRI_BIAS; \
994 \
995 if (SvOK (callback) && !SvROK (callback)) \
996 croak ("callback must be undef or of reference type"); \
997 \
998 Newz (0, req, 1, aio_cb); \
999 if (!req) \
1000 croak ("out of memory during aio_req allocation"); \
1001 \
1002 req->callback = newSVsv (callback); \
1003 req->pri = req_pri
1004
1005#define REQ_SEND \
1006 req_send (req); \
1007 \
1008 if (GIMME_V != G_VOID) \
1009 XPUSHs (req_sv (req, AIO_REQ_KLASS));
1010
1011MODULE = IO::AIO PACKAGE = IO::AIO
1012
1013PROTOTYPES: ENABLE
1014
1015BOOT:
1016{
1017 HV *stash = gv_stashpv ("IO::AIO", 1);
1018 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
1019 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
1020 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1021
1022 create_pipe ();
1023 pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
1024}
1025
1026void 1635void
1027min_parallel (nthreads) 1636aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
1028 int nthreads
1029 PROTOTYPE: $
1030
1031void
1032max_parallel (nthreads)
1033 int nthreads
1034 PROTOTYPE: $
1035
1036int
1037max_outstanding (nreqs)
1038 int nreqs
1039 PROTOTYPE: $
1040 CODE: 1637 PPCODE:
1041 RETVAL = max_outstanding;
1042 max_outstanding = nreqs;
1043
1044void
1045aio_open (pathname,flags,mode,callback=&PL_sv_undef)
1046 SV * pathname
1047 int flags
1048 int mode
1049 SV * callback
1050 PROTOTYPE: $$$;$
1051 PPCODE:
1052{ 1638{
1639 int fd = s_fileno_croak (fh, 0);
1053 dREQ; 1640 dREQ;
1054 1641
1055 req->type = REQ_OPEN; 1642 req->type = EIO_SEEK;
1056 req->data = newSVsv (pathname); 1643 req->sv1 = newSVsv (fh);
1057 req->dataptr = SvPVbyte_nolen (req->data); 1644 req->int1 = fd;
1058 req->fd = flags; 1645 req->offs = SvVAL64 (offset);
1059 req->mode = mode; 1646 req->int2 = whence;
1060 1647
1061 REQ_SEND; 1648 REQ_SEND;
1062} 1649}
1063 1650
1064void 1651void
1065aio_close (fh,callback=&PL_sv_undef) 1652aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1066 SV * fh
1067 SV * callback
1068 PROTOTYPE: $;$
1069 ALIAS: 1653 ALIAS:
1070 aio_close = REQ_CLOSE
1071 aio_fsync = REQ_FSYNC
1072 aio_fdatasync = REQ_FDATASYNC
1073 PPCODE:
1074{
1075 dREQ;
1076
1077 req->type = ix;
1078 req->fh = newSVsv (fh);
1079 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1080
1081 REQ_SEND (req);
1082}
1083
1084void
1085aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1086 SV * fh
1087 UV offset
1088 UV length
1089 SV * data
1090 UV dataoffset
1091 SV * callback
1092 ALIAS:
1093 aio_read = REQ_READ 1654 aio_read = EIO_READ
1094 aio_write = REQ_WRITE 1655 aio_write = EIO_WRITE
1095 PROTOTYPE: $$$$$;$
1096 PPCODE: 1656 PPCODE:
1097{ 1657{
1098 aio_req req;
1099 STRLEN svlen; 1658 STRLEN svlen;
1659 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1100 char *svptr = SvPVbyte (data, svlen); 1660 char *svptr = SvPVbyte (data, svlen);
1101 1661 UV len = SvUV (length);
1102 SvUPGRADE (data, SVt_PV);
1103 SvPOK_on (data);
1104 1662
1105 if (dataoffset < 0) 1663 if (dataoffset < 0)
1106 dataoffset += svlen; 1664 dataoffset += svlen;
1107 1665
1108 if (dataoffset < 0 || dataoffset > svlen) 1666 if (dataoffset < 0 || dataoffset > svlen)
1109 croak ("data offset outside of string"); 1667 croak ("dataoffset outside of data scalar");
1110 1668
1111 if (ix == REQ_WRITE) 1669 if (ix == EIO_WRITE)
1112 { 1670 {
1113 /* write: check length and adjust. */ 1671 /* write: check length and adjust. */
1114 if (length < 0 || length + dataoffset > svlen) 1672 if (!SvOK (length) || len + dataoffset > svlen)
1115 length = svlen - dataoffset; 1673 len = svlen - dataoffset;
1116 } 1674 }
1117 else 1675 else
1118 { 1676 {
1119 /* read: grow scalar as necessary */ 1677 /* read: check type and grow scalar as necessary */
1678 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1120 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");
1121 } 1682 }
1122
1123 if (length < 0)
1124 croak ("length must not be negative");
1125 1683
1126 { 1684 {
1127 dREQ; 1685 dREQ;
1128 1686
1129 req->type = ix; 1687 req->type = ix;
1130 req->fh = newSVsv (fh); 1688 req->sv1 = newSVsv (fh);
1131 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1689 req->int1 = fd;
1132 : IoOFP (sv_2io (fh))); 1690 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1133 req->offset = offset; 1691 req->size = len;
1134 req->length = length;
1135 req->data = SvREFCNT_inc (data); 1692 req->sv2 = SvREFCNT_inc (data);
1136 req->dataptr = (char *)svptr + dataoffset; 1693 req->ptr2 = (char *)svptr + dataoffset;
1694 req->stroffset = dataoffset;
1137 1695
1138 if (!SvREADONLY (data)) 1696 if (!SvREADONLY (data))
1139 { 1697 {
1140 SvREADONLY_on (data); 1698 SvREADONLY_on (data);
1141 req->data2ptr = (void *)data; 1699 req->flags |= FLAG_SV2_RO_OFF;
1142 } 1700 }
1143 1701
1144 REQ_SEND; 1702 REQ_SEND;
1145 } 1703 }
1146} 1704}
1147 1705
1148void 1706void
1149aio_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)
1150 SV * out_fh 1708 ALIAS:
1151 SV * in_fh 1709 aio_ioctl = EIO_IOCTL
1152 UV in_offset 1710 aio_fcntl = EIO_FCNTL
1153 UV length
1154 SV * callback
1155 PROTOTYPE: $$$$;$
1156 PPCODE: 1711 PPCODE:
1157{ 1712{
1158 dREQ; 1713 int fd = s_fileno_croak (fh, 0);
1714 char *svptr;
1159 1715
1160 req->type = REQ_SENDFILE; 1716 if (SvPOK (arg) || !SvNIOK (arg))
1161 req->fh = newSVsv (out_fh);
1162 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1163 req->fh2 = newSVsv (in_fh);
1164 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1165 req->offset = in_offset;
1166 req->length = length;
1167
1168 REQ_SEND;
1169}
1170
1171void
1172aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1173 SV * fh
1174 UV offset
1175 IV length
1176 SV * callback
1177 PROTOTYPE: $$$;$
1178 PPCODE:
1179{
1180 dREQ;
1181
1182 req->type = REQ_READAHEAD;
1183 req->fh = newSVsv (fh);
1184 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1185 req->offset = offset;
1186 req->length = length;
1187
1188 REQ_SEND;
1189}
1190
1191void
1192aio_stat (fh_or_path,callback=&PL_sv_undef)
1193 SV * fh_or_path
1194 SV * callback
1195 ALIAS:
1196 aio_stat = REQ_STAT
1197 aio_lstat = REQ_LSTAT
1198 PPCODE:
1199{
1200 dREQ;
1201
1202 New (0, req->statdata, 1, Stat_t);
1203 if (!req->statdata)
1204 { 1717 {
1205 req_free (req); 1718 STRLEN svlen;
1206 croak ("out of memory during aio_req->statdata allocation"); 1719 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1207 } 1720#ifdef IOCPARM_LEN
1721 STRLEN need = IOCPARM_LEN (request);
1722#else
1723 STRLEN need = 256;
1724#endif
1208 1725
1209 if (SvPOK (fh_or_path)) 1726 if (svlen < need)
1210 { 1727 svptr = SvGROW (arg, need);
1211 req->type = ix;
1212 req->data = newSVsv (fh_or_path);
1213 req->dataptr = SvPVbyte_nolen (req->data);
1214 } 1728 }
1215 else 1729 else
1730 svptr = (char *)SvIV (arg);
1731
1216 { 1732 {
1733 dREQ;
1734
1217 req->type = REQ_FSTAT; 1735 req->type = ix;
1218 req->fh = newSVsv (fh_or_path); 1736 req->sv1 = newSVsv (fh);
1219 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;
1220 } 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);
1221 1757
1222 REQ_SEND; 1758 REQ_SEND;
1223} 1759}
1224 1760
1225void 1761void
1226aio_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)
1227 SV * pathname 1763 PPCODE:
1228 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)
1229 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:
1230 aio_unlink = REQ_UNLINK 1944 aio_unlink = EIO_UNLINK
1231 aio_rmdir = REQ_RMDIR 1945 aio_rmdir = EIO_RMDIR
1232 aio_readdir = REQ_READDIR 1946 aio_readdir = EIO_READDIR
1233 PPCODE: 1947 PPCODE:
1234{ 1948{
1235 dREQ; 1949 dREQ;
1236 1950
1237 req->type = ix; 1951 req->type = ix;
1238 req->data = newSVsv (pathname); 1952 req_set_path1 (req, pathname);
1239 req->dataptr = SvPVbyte_nolen (req->data); 1953
1240
1241 REQ_SEND; 1954 REQ_SEND;
1242} 1955}
1243 1956
1244void 1957void
1245aio_link (oldpath,newpath,callback=&PL_sv_undef) 1958aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1246 SV * oldpath
1247 SV * newpath
1248 SV * callback
1249 ALIAS: 1959 ALIAS:
1250 aio_link = REQ_LINK 1960 aio_link = EIO_LINK
1251 aio_symlink = REQ_SYMLINK 1961 aio_symlink = EIO_SYMLINK
1252 aio_rename = REQ_RENAME 1962 aio_rename = EIO_RENAME
1253 PPCODE: 1963 PPCODE:
1254{ 1964{
1965 eio_wd wd2 = 0;
1255 dREQ; 1966 dREQ;
1256 1967
1257 req->type = ix; 1968 req->type = ix;
1258 req->fh = newSVsv (oldpath); 1969 req_set_path1 (req, oldpath);
1259 req->data2ptr = SvPVbyte_nolen (req->fh); 1970 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1260 req->data = newSVsv (newpath); 1971 req->int3 = (long)wd2;
1261 req->dataptr = SvPVbyte_nolen (req->data);
1262 1972
1263 REQ_SEND; 1973 REQ_SEND;
1264} 1974}
1265 1975
1266void 1976void
1267aio_busy (delay,callback=&PL_sv_undef) 1977aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1268 double delay
1269 SV * callback
1270 PPCODE: 1978 PPCODE:
1271{ 1979{
1980 eio_wd wd2 = 0;
1272 dREQ; 1981 dREQ;
1273 1982
1274 req->type = REQ_BUSY; 1983 req->type = EIO_RENAME;
1275 req->fd = delay < 0. ? 0 : delay; 1984 req_set_path1 (req, oldpath);
1276 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1985 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1277 1986 req->int2 = flags;
1987 req->int3 = (long)wd2;
1988
1278 REQ_SEND; 1989 REQ_SEND;
1279} 1990}
1280 1991
1281void 1992void
1282aio_group (callback=&PL_sv_undef) 1993aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1283 SV * callback 1994 PPCODE:
1284 PROTOTYPE: ;$ 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
1285 PPCODE: 2011 PPCODE:
1286{ 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);
1287 dREQ; 2088 dREQ;
1288 2089
1289 req->type = REQ_GROUP; 2090 req->type = EIO_CUSTOM;
1290 req_send (req); 2091 req->sv1 = newSVsv (fh);
2092 req->int1 = fd;
1291 2093
1292 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2094 req->feed = fiemap;
1293} 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
1294 2102
2103 REQ_SEND;
2104}
2105
1295void 2106void
1296aio_nop (callback=&PL_sv_undef) 2107aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1297 SV * callback 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)
1298 PPCODE: 2146 PPCODE:
1299{ 2147{
1300 dREQ; 2148 dREQ;
1301 2149
1302 req->type = REQ_NOP; 2150 req->type = EIO_BUSY;
2151 req->nv1 = delay < 0. ? 0. : delay;
1303 2152
1304 REQ_SEND; 2153 REQ_SEND;
1305} 2154}
1306 2155
1307void 2156void
1308aioreq_pri (int pri = DEFAULT_PRI) 2157aio_group (SV *callback = &PL_sv_undef)
1309 CODE: 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 {
1310 if (pri < PRI_MIN) pri = PRI_MIN; 2191 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1311 if (pri > PRI_MAX) pri = PRI_MAX; 2192 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1312 next_pri = pri + PRI_BIAS; 2193 next_pri = pri;
2194 }
2195 OUTPUT:
2196 RETVAL
1313 2197
1314void 2198void
1315aioreq_nice (int nice = 0) 2199aioreq_nice (int nice = 0)
1316 CODE: 2200 CODE:
1317 nice = next_pri - nice; 2201 nice = next_pri - nice;
1318 if (nice < PRI_MIN) nice = PRI_MIN; 2202 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1319 if (nice > PRI_MAX) nice = PRI_MAX; 2203 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1320 next_pri = nice + PRI_BIAS; 2204 next_pri = nice;
1321 2205
1322void 2206void
1323flush () 2207flush ()
1324 PROTOTYPE:
1325 CODE: 2208 CODE:
1326 while (nreqs) 2209 while (eio_nreqs ())
1327 { 2210 {
1328 poll_wait (); 2211 poll_wait ();
1329 poll_cb (); 2212 poll_cb ();
1330 } 2213 }
1331 2214
1332void 2215int
1333poll() 2216poll ()
1334 PROTOTYPE:
1335 CODE: 2217 CODE:
1336 if (nreqs)
1337 {
1338 poll_wait (); 2218 poll_wait ();
1339 poll_cb (); 2219 RETVAL = poll_cb ();
1340 }
1341
1342int
1343poll_fileno()
1344 PROTOTYPE:
1345 CODE:
1346 RETVAL = respipe [0];
1347 OUTPUT: 2220 OUTPUT:
1348 RETVAL 2221 RETVAL
1349 2222
1350int 2223int
2224poll_fileno ()
2225 CODE:
2226 RETVAL = s_epipe_fd (&respipe);
2227 OUTPUT:
2228 RETVAL
2229
2230int
1351poll_cb(...) 2231poll_cb (...)
1352 PROTOTYPE: 2232 PROTOTYPE:
1353 CODE: 2233 CODE:
1354 RETVAL = poll_cb (); 2234 RETVAL = poll_cb ();
1355 OUTPUT: 2235 OUTPUT:
1356 RETVAL 2236 RETVAL
1357 2237
1358void 2238void
1359poll_wait() 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 ()
1360 PROTOTYPE: 2438 PROTOTYPE:
1361 CODE: 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
1362 if (nreqs) 2569 if (salen)
1363 poll_wait (); 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
1364 2622
1365int 2623int
1366nreqs() 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)
1367 PROTOTYPE: 2641 PROTOTYPE: ;$
2642 PPCODE:
2643{
2644 int fd[2];
2645 int res;
2646
2647 if (flags)
2648#if HAVE_PIPE2
2649 res = pipe2 (fd, flags);
2650#else
2651 res = (errno = ENOSYS, -1);
2652#endif
2653 else
2654 res = pipe (fd);
2655
2656 if (!res)
2657 {
2658 EXTEND (SP, 2);
2659 PUSHs (newmortalFH (fd[0], O_RDONLY));
2660 PUSHs (newmortalFH (fd[1], O_WRONLY));
2661 }
2662}
2663
2664void
2665pidfd_open (int pid, unsigned int flags = 0)
2666 PPCODE:
2667{
2668 /*GENDEF0_SYSCALL(pidfd_open,434)*/
2669 int fd = syscall (SYS_pidfd_open, pid, flags);
2670 XPUSHs (newmortalFH (fd, O_RDWR));
2671}
2672
2673int
2674pidfd_send_signal (SV *pidfh, int sig, SV *siginfo = &PL_sv_undef, unsigned int flags = 0)
2675 PPCODE:
2676{
2677 int res;
2678 siginfo_t si = { 0 };
2679
2680 if (SvOK (siginfo))
2681 {
2682 HV *hv;
2683 SV **svp;
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
2703void
2704pidfd_getfd (SV *pidfh, int targetfd, unsigned int flags = 0)
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 ()
1368 CODE: 2801 CODE:
1369 RETVAL = 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;
1370 OUTPUT: 2808 OUTPUT:
1371 RETVAL 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)
2829 {
2830 rl.rlim_cur = limit;
2831
2832 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2833 rl.rlim_max = rl.rlim_cur;
2834 }
2835
2836 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2837 XSRETURN_YES;
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)
2872 CODE:
2873 SvREFCNT_dec (on_next_submit);
2874 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1372 2875
1373PROTOTYPES: DISABLE 2876PROTOTYPES: DISABLE
2877
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)
2888 CODE:
2889{
2890 aio_wd wd = SvAIO_WD (self);
2891#if HAVE_AT
2892 {
2893 SV *callback = &PL_sv_undef;
2894 dREQ; /* clobbers next_pri :/ */
2895 next_pri = req->pri; /* restore next_pri */
2896 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2897 req->type = EIO_WD_CLOSE;
2898 req->wd = wd;
2899 REQ_SEND;
2900 }
2901#else
2902 eio_wd_close_sync (wd);
2903#endif
2904}
1374 2905
1375MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2906MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1376 2907
1377void 2908void
1378cancel (aio_req_ornot req) 2909cancel (aio_req_ornot req)
1379 CODE: 2910 CODE:
1380 req_cancel (req); 2911 eio_cancel (req);
1381 2912
1382void 2913void
1383cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2914cb (aio_req_ornot req, SV *callback = NO_INIT)
1384 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
1385 SvREFCNT_dec (req->callback); 2924 SvREFCNT_dec (req->callback);
1386 req->callback = newSVsv (callback); 2925 req->callback = SvREFCNT_inc (cb_cv);
2926 }
2927}
1387 2928
1388MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2929MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1389 2930
1390void 2931void
1391add (aio_req grp, ...) 2932add (aio_req grp, ...)
1392 PPCODE: 2933 PPCODE:
1393{ 2934{
1394 int i; 2935 int i;
1395 aio_req req;
1396 2936
1397 if (grp->fd == 2) 2937 if (grp->int1 == 2)
1398 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");
1399 2939
1400 for (i = 1; i < items; ++i ) 2940 for (i = 1; i < items; ++i )
1401 { 2941 {
2942 aio_req req;
2943
1402 if (GIMME_V != G_VOID) 2944 if (GIMME_V != G_VOID)
1403 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2945 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1404 2946
1405 req = SvAIO_REQ (ST (i)); 2947 req = SvAIO_REQ (ST (i));
1406 2948
1407 if (req) 2949 if (req)
1408 { 2950 eio_grp_add (grp, req);
1409 ++grp->length;
1410 req->grp = grp;
1411
1412 req->grp_prev = 0;
1413 req->grp_next = grp->grp_first;
1414
1415 if (grp->grp_first)
1416 grp->grp_first->grp_prev = req;
1417
1418 grp->grp_first = req;
1419 }
1420 } 2951 }
1421} 2952}
2953
2954void
2955cancel_subs (aio_req_ornot req)
2956 CODE:
2957 req_cancel_subs (req);
1422 2958
1423void 2959void
1424result (aio_req grp, ...) 2960result (aio_req grp, ...)
1425 CODE: 2961 CODE:
1426{ 2962{
1427 int i; 2963 int i;
2964 AV *av;
2965
2966 grp->errorno = errno;
2967
1428 AV *av = newAV (); 2968 av = newAV ();
2969 av_extend (av, items - 1);
1429 2970
1430 for (i = 1; i < items; ++i ) 2971 for (i = 1; i < items; ++i )
1431 av_push (av, newSVsv (ST (i))); 2972 av_push (av, newSVsv (ST (i)));
1432 2973
1433 SvREFCNT_dec (grp->data); 2974 SvREFCNT_dec (grp->sv1);
1434 grp->data = (SV *)av; 2975 grp->sv1 = (SV *)av;
1435} 2976}
2977
2978void
2979errno (aio_req grp, int errorno = errno)
2980 CODE:
2981 grp->errorno = errorno;
1436 2982
1437void 2983void
1438limit (aio_req grp, int limit) 2984limit (aio_req grp, int limit)
1439 CODE: 2985 CODE:
1440 grp->fd2 = limit; 2986 eio_grp_limit (grp, limit);
1441 aio_grp_feed (grp);
1442 2987
1443void 2988void
1444feed (aio_req grp, SV *callback=&PL_sv_undef) 2989feed (aio_req grp, SV *callback = &PL_sv_undef)
1445 CODE: 2990 CODE:
1446{ 2991{
1447 SvREFCNT_dec (grp->fh2); 2992 SvREFCNT_dec (grp->sv2);
1448 grp->fh2 = newSVsv (callback); 2993 grp->sv2 = newSVsv (callback);
2994 grp->feed = aio_grp_feed;
1449 2995
1450 if (grp->fd2 <= 0) 2996 if (grp->int2 <= 0)
1451 grp->fd2 = 2; 2997 grp->int2 = 2;
1452 2998
1453 aio_grp_feed (grp); 2999 eio_grp_limit (grp, grp->int2);
1454} 3000}
1455 3001

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