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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 1.281 by root, Wed Feb 26 15:47:22 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 <unistd.h>
90 #include <utime.h>
91 #include <signal.h>
92
93 #define EIO_STRUCT_STAT Stat_t
94
95#endif
96
97/*****************************************************************************/
98
99#if __GNUC__ >= 3
100# define expect(expr,value) __builtin_expect ((expr),(value))
101#else
102# define expect(expr,value) (expr)
103#endif
104
105#define expect_false(expr) expect ((expr) != 0, 0)
106#define expect_true(expr) expect ((expr) != 0, 1)
107
108/*****************************************************************************/
109
110#include "config.h"
111
112#if HAVE_SYS_MKDEV_H
33# include <sys/socket.h> 113# include <sys/mkdev.h>
114#elif HAVE_SYS_SYSMACROS_H
115# include <sys/sysmacros.h>
116#endif
117
118#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
119# include <sys/mman.h>
120#endif
121
122#if HAVE_SYS_UIO_H
34# include <sys/uio.h> 123# include <sys/uio.h>
35# elif __hpux 124#endif
36# include <sys/socket.h> 125
37# elif __solaris /* not yet */ 126#if HAVE_ST_XTIMENSEC
127# define ATIMENSEC PL_statcache.st_atimensec
128# define MTIMENSEC PL_statcache.st_mtimensec
129# define CTIMENSEC PL_statcache.st_ctimensec
130#elif HAVE_ST_XTIMESPEC
131# define ATIMENSEC PL_statcache.st_atim.tv_nsec
132# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
133# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
134#else
135# define ATIMENSEC 0
136# define MTIMENSEC 0
137# define CTIMENSEC 0
138#endif
139
140#if HAVE_ST_BIRTHTIMENSEC
141# define BTIMESEC PL_statcache.st_birthtime
142# define BTIMENSEC PL_statcache.st_birthtimensec
143#elif HAVE_ST_BIRTHTIMESPEC
144# define BTIMESEC PL_statcache.st_birthtim.tv_sec
145# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
146#else
147# define BTIMESEC 0
148# define BTIMENSEC 0
149#endif
150
151#if HAVE_ST_GEN
152# define ST_GEN PL_statcache.st_gen
153#else
154# define ST_GEN 0
155#endif
156
157#include "schmorp.h"
158
159#if HAVE_EVENTFD
38# include <sys/sendfile.h> 160# include <sys/eventfd.h>
161#endif
162
163#if HAVE_TIMERFD
164# include <sys/timerfd.h>
165#endif
166
167#if HAVE_RLIMITS
168 #include <sys/time.h>
169 #include <sys/resource.h>
170#endif
171
172typedef SV SV8; /* byte-sv, used for argument-checking */
173typedef int aio_rfd; /* read file desriptor */
174typedef int aio_wfd; /* write file descriptor */
175
176static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
177
178#define EIO_REQ_MEMBERS \
179 SV *callback; \
180 SV *sv1, *sv2; \
181 SV *sv3, *sv4; \
182 STRLEN stroffset; \
183 SV *self;
184
185#define EIO_NO_WRAPPERS 1
186
187#include "libeio/eio.h"
188
189static int req_invoke (eio_req *req);
190#define EIO_FINISH(req) req_invoke (req)
191static void req_destroy (eio_req *grp);
192#define EIO_DESTROY(req) req_destroy (req)
193
194#include "libeio/eio.c"
195
196#if !HAVE_POSIX_FADVISE
197# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
198#endif
199
200#if !HAVE_POSIX_MADVISE
201# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
202#endif
203
204#ifndef MAP_ANONYMOUS
205# ifdef MAP_ANON
206# define MAP_ANONYMOUS MAP_ANON
39# else 207# else
40# error sendfile support requested but not available 208# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
41# endif 209# endif
42#endif 210#endif
43 211
44/* used for struct dirent, AIX doesn't provide it */ 212#ifndef makedev
45#ifndef NAME_MAX 213# define makedev(maj,min) (((maj) << 8) | (min))
46# define NAME_MAX 4096
47#endif 214#endif
48 215#ifndef major
49#if __ia64 216# define major(dev) ((dev) >> 8)
50# define STACKSIZE 65536
51#elif __i386 || __x86_64 /* 16k is unreasonably high :( */
52# define STACKSIZE PTHREAD_STACK_MIN
53#else
54# define STACKSIZE 16384
55#endif 217#endif
218#ifndef minor
219# define minor(dev) ((dev) & 0xff)
220#endif
56 221
57/* buffer size for various temporary buffers */ 222/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
58#define AIO_BUFSIZE 65536 223#ifdef __sun
224# undef PAGESIZE
225#endif
59 226
60#define dBUF \ 227#if PAGESIZE <= 0
61 char *aio_buf = malloc (AIO_BUFSIZE); \ 228# define PAGESIZE sysconf (_SC_PAGESIZE)
62 if (!aio_buf) \ 229#endif
230
231/*****************************************************************************/
232
233#if !_POSIX_MAPPED_FILES
234# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
235# define munmap(addr,length) EIO_ENOSYS ()
236#endif
237
238#if !_POSIX_MEMORY_PROTECTION
239# define mprotect(addr,len,prot) EIO_ENOSYS ()
240#endif
241
242#if !MREMAP_MAYMOVE
243# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
244#endif
245
246#define FOREIGN_MAGIC PERL_MAGIC_ext
247
248static int ecb_cold
249mmap_free (pTHX_ SV *sv, MAGIC *mg)
250{
251 int old_errno = errno;
252 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
253 errno = old_errno;
254
255 mg->mg_obj = 0; /* just in case */
256
257 SvREADONLY_off (sv);
258
259 if (SvPVX (sv) != mg->mg_ptr)
260 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
261
262 SvCUR_set (sv, 0);
263 SvPVX (sv) = 0;
264 SvOK_off (sv);
265
63 return -1; 266 return 0;
267}
64 268
65#define fBUF free (aio_buf) 269static MGVTBL mmap_vtbl = {
66 270 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}; 271};
80 272
81#define AIO_REQ_KLASS "IO::AIO::REQ" 273static int ecb_cold
82#define AIO_GRP_KLASS "IO::AIO::GRP" 274sysfree_free (pTHX_ SV *sv, MAGIC *mg)
83
84typedef struct aio_cb
85{ 275{
86 struct aio_cb *volatile next; 276 free (mg->mg_ptr);
277 mg->mg_obj = 0; /* just in case */
87 278
88 SV *data, *callback; 279 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;
95 280
96 STRLEN dataoffset; 281 if (SvPVX (sv) != mg->mg_ptr)
97 int type; 282 croak ("ERROR: IO::AIO mapped scalar changed location, detected");
98 int fd, fd2;
99 int errorno;
100 mode_t mode; /* open */
101 283
102 unsigned char flags; 284 SvCUR_set (sv, 0);
103 unsigned char pri; 285 SvPVX (sv) = 0;
286 SvOK_off (sv);
104 287
105 SV *self; /* the perl counterpart of this request, if any */ 288 return 0;
106 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first; 289}
107} aio_cb;
108 290
109enum { 291static MGVTBL sysfree_vtbl = {
110 FLAG_CANCELLED = 0x01, 292 0, 0, 0, 0, sysfree_free
111}; 293};
112 294
113typedef aio_cb *aio_req; 295/*****************************************************************************/
114typedef aio_cb *aio_req_ornot;
115 296
116enum { 297/* helper: set scalar to foreign ptr with custom free */
117 PRI_MIN = -4, 298ecb_noinline
118 PRI_MAX = 4, 299static void
300sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
301{
302 sv_force_normal (sv);
119 303
120 DEFAULT_PRI = 0, 304 /* we store the length in mg_obj, as namlen is I32 :/ */
121 PRI_BIAS = -PRI_MIN, 305 sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
122 NUM_PRI = PRI_MAX + PRI_BIAS + 1, 306 ->mg_obj = (SV *)length;
123};
124 307
125static int next_pri = DEFAULT_PRI + PRI_BIAS; 308 SvUPGRADE (sv, SVt_PV); /* nop... */
126 309
127static int started, wanted; 310 if (SvLEN (sv))
128static volatile int nreqs; 311 Safefree (SvPVX (sv));
129static int max_outstanding = 1<<30;
130static int respipe [2];
131 312
132#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) 313 SvPVX (sv) = (char *)addr;
133# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP 314 SvCUR_set (sv, length);
134#else 315 SvLEN_set (sv, 0);
135# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER 316 SvPOK_only (sv);
136#endif 317}
137 318
138static pthread_mutex_t reslock = AIO_MUTEX_INIT; 319static void
139static pthread_mutex_t reqlock = AIO_MUTEX_INIT; 320sv_clear_foreign (SV *sv)
140static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER; 321{
322 /* todo: iterate over magic and only free ours, but of course */
323 /* the perl5porters will call that (correct) behaviour buggy */
324 sv_unmagic (sv, FOREIGN_MAGIC);
325}
141 326
142/* 327/*****************************************************************************/
143 * a somewhat faster data structure might be nice, but 328
144 * with 8 priorities this actually needs <20 insns 329/* defines all sorts of constants to 0 unless they are already defined */
145 * per shift, the most expensive operation. 330/* also provides const_iv_ and const_niv_ macros for them */
331#include "def0.h"
332
333/*****************************************************************************/
334
335static void
336fiemap (eio_req *req)
337{
338 req->result = -1;
339
340#if HAVE_FIEMAP
341 /* assume some c99 */
342 struct fiemap *fiemap = 0;
343 size_t end_offset;
344 int count = req->int3;
345
346 req->flags |= EIO_FLAG_PTR1_FREE;
347
348 /* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
349 /* increase in 3.5kb steps */
350 if (count < 0)
351 count = 8;
352
353 fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
354 errno = ENOMEM;
355 if (!fiemap)
356 return;
357
358 req->ptr1 = fiemap;
359
360 fiemap->fm_start = req->offs;
361 fiemap->fm_length = req->size;
362 fiemap->fm_flags = req->int2;
363 fiemap->fm_extent_count = count;
364
365 if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
366 return;
367
368 if (req->int3 >= 0 /* not autosizing */
369 || !fiemap->fm_mapped_extents /* no more extents */
370 || fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
371 goto done;
372
373 /* else we have to loop -
374 * it would be tempting (actually I tried that first) to just query the
375 * number of extents needed, but linux often feels like not returning all
376 * extents, without telling us it left any out. this complicates
377 * this quite a bit.
146 */ 378 */
147typedef struct {
148 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
149 int size;
150} reqq;
151 379
152static reqq req_queue; 380 end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
153static reqq res_queue;
154 381
155int reqq_push (reqq *q, aio_req req) 382 for (;;)
156{
157 int pri = req->pri;
158 req->next = 0;
159
160 if (q->qe[pri])
161 { 383 {
162 q->qe[pri]->next = req; 384 /* 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; 385 char scratch[3072];
164 } 386 struct fiemap *incmap = (struct fiemap *)scratch;
165 else
166 q->qe[pri] = q->qs[pri] = req;
167 387
168 return q->size++; 388 incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
169} 389 + fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
390 incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
391 incmap->fm_flags = fiemap->fm_flags;
392 incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
170 393
171aio_req reqq_shift (reqq *q) 394 if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
172{
173 int pri;
174
175 if (!q->size)
176 return 0; 395 return;
177 396
178 --q->size; 397 if (!incmap->fm_mapped_extents)
398 goto done;
179 399
180 for (pri = NUM_PRI; pri--; ) 400 count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
181 { 401 fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
182 aio_req req = q->qs[pri]; 402 errno = ENOMEM;
183
184 if (req) 403 if (!fiemap)
404 return;
405
406 req->ptr1 = fiemap;
407
408 for (count = 0; count < incmap->fm_mapped_extents; ++count)
185 { 409 {
186 if (!(q->qs[pri] = req->next)) 410 struct fiemap_extent *e = incmap->fm_extents + count;
187 q->qe[pri] = 0;
188 411
189 return req; 412 if (e->fe_logical + e->fe_length >= end_offset)
413 goto done;
414
415 fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
416
417 if (e->fe_flags & FIEMAP_EXTENT_LAST)
418 goto done;
419
190 } 420 }
191 } 421 }
192 422
193 abort (); 423done:
194} 424 req->result = 0;
195 425
426#else
427 errno = ENOSYS;
428#endif
429}
430
431/*****************************************************************************/
432
433static int close_fd; /* dummy fd to close fds via dup2 */
434
435#if HAVE_STATX
436static struct statx stx;
437#define statx_offsetof(member) offsetof (struct statx, member)
438#define eio__statx statx
439#else
440#define statx_offsetof(member) 0
441#define eio__statx(dir,path,flags,mask,stx) EIO_ENOSYS()
442#endif
443
444enum {
445 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
446};
447
448typedef eio_req *aio_req;
449typedef eio_req *aio_req_ornot;
450typedef eio_wd aio_wd;
451
452static SV *on_next_submit;
453static int next_pri = EIO_PRI_DEFAULT;
454static int max_outstanding;
455
456static s_epipe respipe;
457
458static void req_destroy (aio_req req);
196static void req_invoke (aio_req req); 459static void req_cancel (aio_req req);
197static void req_free (aio_req req); 460
461static void
462want_poll (void)
463{
464 /* write a dummy byte to the pipe so fh becomes ready */
465 s_epipe_signal (&respipe);
466}
467
468static void
469done_poll (void)
470{
471 /* read any signals sent by the worker threads */
472 s_epipe_drain (&respipe);
473}
198 474
199/* must be called at most once */ 475/* must be called at most once */
200static SV *req_sv (aio_req req, const char *klass) 476ecb_noinline
477static SV *
478req_sv (aio_req req, HV *stash)
201{ 479{
202 if (!req->self) 480 if (!req->self)
203 { 481 {
204 req->self = (SV *)newHV (); 482 req->self = (SV *)newHV ();
205 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 483 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
206 } 484 }
207 485
208 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 486 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
209} 487}
210 488
211static aio_req SvAIO_REQ (SV *sv) 489static SV *
490newSVaio_wd (aio_wd wd)
491{
492 return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
493}
494
495ecb_noinline
496static aio_req
497SvAIO_REQ (SV *sv)
212{ 498{
213 MAGIC *mg; 499 MAGIC *mg;
214 500
215 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 501 if (!SvROK (sv)
502 /* for speed reasons, we do not verify that SvROK actually has a stash ptr */
503 || (SvSTASH (SvRV (sv)) != aio_grp_stash
504 && SvSTASH (SvRV (sv)) != aio_req_stash
505 && !sv_derived_from (sv, "IO::AIO::REQ")))
216 croak ("object of class " AIO_REQ_KLASS " expected"); 506 croak ("object of class IO::AIO::REQ expected");
217 507
218 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 508 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
219 509
220 return mg ? (aio_req)mg->mg_ptr : 0; 510 return mg ? (aio_req)mg->mg_ptr : 0;
221} 511}
222 512
513static aio_wd
514SvAIO_WD (SV *sv)
515{
516 if (!SvROK (sv)
517 || SvTYPE (SvRV (sv)) != SVt_PVMG
518 || SvSTASH (SvRV (sv)) != aio_wd_stash)
519 croak ("IO::AIO: expected a working directory object as returned by aio_wd");
520
521 return (aio_wd)(long)SvIVX (SvRV (sv));
522}
523
524static SV *
525newmortalFH (int fd, int flags)
526{
527 if (fd < 0)
528 return &PL_sv_undef;
529
530 GV *gv = (GV *)sv_newmortal ();
531 char sym[64];
532 int symlen;
533
534 symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
535 gv_init (gv, aio_stash, sym, symlen, 0);
536
537 symlen = snprintf (
538 sym,
539 sizeof (sym),
540 "%s&=%d",
541 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
542 fd
543 );
544
545 return do_open (gv, sym, symlen, 0, 0, 0, 0)
546 ? (SV *)gv : &PL_sv_undef;
547}
548
549static void
223static void aio_grp_feed (aio_req grp) 550aio_grp_feed (aio_req grp)
224{ 551{
225 while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED)) 552 if (grp->sv2 && SvOK (grp->sv2))
226 { 553 {
227 int old_len = grp->length;
228
229 if (grp->fh2 && SvOK (grp->fh2))
230 {
231 dSP; 554 dSP;
232 555
233 ENTER; 556 ENTER;
234 SAVETMPS; 557 SAVETMPS;
235 PUSHMARK (SP); 558 PUSHMARK (SP);
236 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 559 XPUSHs (req_sv (grp, aio_grp_stash));
237 PUTBACK; 560 PUTBACK;
238 call_sv (grp->fh2, G_VOID | G_EVAL | G_KEEPERR); 561 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
239 SPAGAIN; 562 SPAGAIN;
240 FREETMPS; 563 FREETMPS;
241 LEAVE; 564 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 } 565 }
252} 566}
253 567
254static void aio_grp_dec (aio_req grp) 568ecb_noinline
569static void
570req_submit (eio_req *req)
255{ 571{
256 --grp->length; 572 eio_submit (req);
257 573
258 /* call feeder, if applicable */ 574 if (expect_false (on_next_submit))
259 aio_grp_feed (grp);
260
261 /* finish, if done */
262 if (!grp->length && grp->fd)
263 { 575 {
264 req_invoke (grp); 576 dSP;
265 req_free (grp); 577 SV *cb = sv_2mortal (on_next_submit);
578
579 on_next_submit = 0;
580
581 PUSHMARK (SP);
582 PUTBACK;
583 call_sv (cb, G_DISCARD | G_EVAL);
266 } 584 }
267} 585}
268 586
269static void poll_wait () 587static int
588req_invoke (eio_req *req)
270{ 589{
271 fd_set rfd; 590 if (req->flags & FLAG_SV2_RO_OFF)
591 SvREADONLY_off (req->sv2);
272 592
273 while (nreqs) 593 if (!EIO_CANCELLED (req) && req->callback)
274 { 594 {
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; 595 dSP;
297 596 static SV *sv_result_cache; /* caches the result integer SV */
298 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 597 SV *sv_result;
299 {
300 errno = req->errorno;
301 598
302 ENTER; 599 ENTER;
303 SAVETMPS; 600 SAVETMPS;
304 PUSHMARK (SP); 601 PUSHMARK (SP);
305 EXTEND (SP, 1); 602 EXTEND (SP, 1);
306 603
604 /* do not recreate the result IV from scratch each time */
605 if (expect_true (sv_result_cache))
606 {
607 sv_result = sv_result_cache; sv_result_cache = 0;
608 SvIV_set (sv_result, req->result);
609 SvIOK_only (sv_result);
610 }
611 else
612 {
613 sv_result = newSViv (req->result);
614 SvREADONLY_on (sv_result);
615 }
616
307 switch (req->type) 617 switch (req->type)
308 { 618 {
619 case EIO_WD_OPEN:
620 PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
621 break;
622
309 case REQ_READDIR: 623 case EIO_READDIR:
310 { 624 {
311 SV *rv = &PL_sv_undef; 625 SV *rv = &PL_sv_undef;
312 626
313 if (req->result >= 0) 627 if (req->result >= 0)
314 { 628 {
629 int i;
315 char *buf = req->data2ptr; 630 char *names = (char *)req->ptr2;
631 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
316 AV *av = newAV (); 632 AV *av = newAV ();
317 633
318 while (req->result) 634 av_extend (av, req->result - 1);
635
636 for (i = 0; i < req->result; ++i)
319 { 637 {
638 if (req->int1 & EIO_READDIR_DENTS)
639 {
640 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
641
642 if (req->int1 & EIO_READDIR_CUSTOM2)
643 {
644 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
645 AV *avent = newAV ();
646
647 av_extend (avent, 2);
648
649 if (!sv_type [ent->type])
650 {
651 sv_type [ent->type] = newSViv (ent->type);
652 SvREADONLY_on (sv_type [ent->type]);
653 }
654
655 av_store (avent, 0, namesv);
656 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
657 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
658
659 av_store (av, i, newRV_noinc ((SV *)avent));
660 }
661 else
662 av_store (av, i, namesv);
663
664 ++ent;
665 }
666 else
667 {
320 SV *sv = newSVpv (buf, 0); 668 SV *name = newSVpv (names, 0);
321
322 av_push (av, sv); 669 av_store (av, i, name);
323 buf += SvCUR (sv) + 1; 670 names += SvCUR (name) + 1;
324 req->result--; 671 }
325 } 672 }
326 673
327 rv = sv_2mortal (newRV_noinc ((SV *)av)); 674 rv = sv_2mortal (newRV_noinc ((SV *)av));
328 } 675 }
329 676
330 PUSHs (rv); 677 PUSHs (rv);
678
679 if (req->int1 & EIO_READDIR_CUSTOM1)
680 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
331 } 681 }
332 break; 682 break;
333 683
334 case REQ_OPEN: 684 case EIO_OPEN:
685 PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
686 break;
687
688 case EIO_STATVFS:
689 case EIO_FSTATVFS:
335 { 690 {
336 /* convert fd to fh */ 691 SV *rv = &PL_sv_undef;
337 SV *fh; 692
693#ifndef _WIN32
694 if (req->result >= 0)
695 {
696 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
697 HV *hv = newHV ();
698 /* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
699 * chooses to make it a struct.
700 */
701 unsigned long fsid = 0;
702 memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
338 703
339 PUSHs (sv_2mortal (newSViv (req->result))); 704 rv = sv_2mortal (newRV_noinc ((SV *)hv));
340 PUTBACK;
341 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
342 SPAGAIN;
343 705
344 fh = SvREFCNT_inc (POPs); 706 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
707 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
708 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
709 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
710 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
711 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
712 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
713 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
714 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
715 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
716 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
717 }
718#endif
345 719
346 PUSHMARK (SP); 720 PUSHs (rv);
347 XPUSHs (sv_2mortal (fh));
348 } 721 }
722
349 break; 723 break;
350 724
351 case REQ_GROUP: 725 case EIO_GROUP:
352 req->fd = 2; /* mark group as finished */ 726 req->int1 = 2; /* mark group as finished */
353 727
354 if (req->data) 728 if (req->sv1)
355 { 729 {
356 int i; 730 int i;
357 AV *av = (AV *)req->data; 731 AV *av = (AV *)req->sv1;
358 732
359 EXTEND (SP, AvFILL (av) + 1); 733 EXTEND (SP, AvFILL (av) + 1);
360 for (i = 0; i <= AvFILL (av); ++i) 734 for (i = 0; i <= AvFILL (av); ++i)
361 PUSHs (*av_fetch (av, i, 0)); 735 PUSHs (*av_fetch (av, i, 0));
362 } 736 }
363 break; 737 break;
364 738
365 case REQ_NOP: 739 case EIO_NOP:
366 case REQ_BUSY: 740 case EIO_BUSY:
367 break; 741 break;
368 742
743 case EIO_READLINK:
744 case EIO_REALPATH:
745 if (req->result > 0)
746 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
747 break;
748
749 case EIO_STAT:
750 case EIO_LSTAT:
751 case EIO_FSTAT:
752 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
753
754 if (!(PL_laststatval = req->result))
755 /* if compilation fails here then perl's Stat_t is not struct _stati64 */
756 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
757
758 PUSHs (sv_result);
759 break;
760
761 case EIO_SEEK:
762 PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
763 break;
764
765 case EIO_READ:
766 {
767 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
768 *SvEND (req->sv2) = 0;
769 SvPOK_only (req->sv2);
770 SvSETMAGIC (req->sv2);
771 PUSHs (sv_result);
772 }
773 break;
774
775 case EIO_SLURP:
776 {
777 if (req->result >= 0)
778 {
779 /* if length was originally not known, we steal the malloc'ed memory */
780 if (req->flags & EIO_FLAG_PTR2_FREE)
781 {
782 req->flags &= ~EIO_FLAG_PTR2_FREE;
783 sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
784 }
785 else
786 {
787 SvCUR_set (req->sv2, req->result);
788 *SvEND (req->sv2) = 0;
789 SvPOK_only (req->sv2);
790 }
791
792 SvSETMAGIC (req->sv2);
793 }
794
795 PUSHs (sv_result);
796 }
797 break;
798
799 case EIO_CUSTOM:
800 if (req->feed == fiemap)
801 {
802#if HAVE_FIEMAP
803 if (!req->result)
804 {
805 struct fiemap *fiemap = (struct fiemap *)req->ptr1;
806
807 if (fiemap->fm_extent_count)
808 {
809 AV *av = newAV ();
810 int i;
811
812 while (fiemap->fm_mapped_extents)
813 {
814 struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
815 AV *ext_av = newAV ();
816
817 av_store (ext_av, 3, newSVuv (extent->fe_flags));
818 av_store (ext_av, 2, newSVval64 (extent->fe_length));
819 av_store (ext_av, 1, newSVval64 (extent->fe_physical));
820 av_store (ext_av, 0, newSVval64 (extent->fe_logical));
821
822 av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
823 }
824
825 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
826 }
827 else
828 {
829 SvIV_set (sv_result, fiemap->fm_mapped_extents);
830 PUSHs (sv_result);
831 }
832 }
833#endif
834 }
835 else
836 PUSHs (sv_result);
837 break;
838
839#if 0
840 case EIO_CLOSE:
841 PerlIOUnix_refcnt_dec (req->int1);
842 break;
843#endif
844
845 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
846 if (req->result > 0)
847 SvIV_set (sv_result, 0);
848 /* FALLTHROUGH */
849
369 default: 850 default:
370 PUSHs (sv_2mortal (newSViv (req->result))); 851 PUSHs (sv_result);
371 break; 852 break;
372 } 853 }
373 854
855 errno = req->errorno;
374 856
375 PUTBACK; 857 PUTBACK;
376 call_sv (req->callback, G_VOID | G_EVAL); 858 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
377 SPAGAIN; 859 SPAGAIN;
860
861 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
862 SvREFCNT_dec (sv_result);
863 else
864 sv_result_cache = sv_result;
378 865
379 FREETMPS; 866 FREETMPS;
380 LEAVE; 867 LEAVE;
868
869 PUTBACK;
381 } 870 }
382 871
383 if (req->grp) 872 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} 873}
403 874
404static void req_free (aio_req req) 875static void
876req_destroy (aio_req req)
405{ 877{
406 if (req->self) 878 if (req->self)
407 { 879 {
408 sv_unmagic (req->self, PERL_MAGIC_ext); 880 sv_unmagic (req->self, PERL_MAGIC_ext);
409 SvREFCNT_dec (req->self); 881 SvREFCNT_dec (req->self);
410 } 882 }
411 883
412 SvREFCNT_dec (req->data);
413 SvREFCNT_dec (req->fh); 884 SvREFCNT_dec (req->sv1);
414 SvREFCNT_dec (req->fh2); 885 SvREFCNT_dec (req->sv2);
886 SvREFCNT_dec (req->sv3);
887 SvREFCNT_dec (req->sv4);
415 SvREFCNT_dec (req->callback); 888 SvREFCNT_dec (req->callback);
416 Safefree (req->statdata);
417 889
418 if (req->type == REQ_READDIR && req->result >= 0)
419 free (req->data2ptr);
420
421 Safefree (req); 890 free (req);
422} 891}
423 892
424static void req_cancel (aio_req req) 893static void
894req_cancel_subs (aio_req grp)
425{ 895{
426 req->flags |= FLAG_CANCELLED;
427
428 if (req->type == REQ_GROUP) 896 if (grp->type != EIO_GROUP)
897 return;
898
899 SvREFCNT_dec (grp->sv2);
900 grp->sv2 = 0;
901
902 eio_grp_cancel (grp);
903}
904
905ecb_cold
906static void
907create_respipe (void)
908{
909 if (s_epipe_renew (&respipe))
910 croak ("IO::AIO: unable to initialize result pipe");
911}
912
913static void
914poll_wait (void)
915{
916 while (eio_nreqs ())
429 { 917 {
430 aio_req sub; 918 int size;
431 919
432 for (sub = req->grp_first; sub; sub = sub->grp_next) 920 X_LOCK (EIO_POOL->reslock);
433 req_cancel (sub); 921 size = EIO_POOL->res_queue.size;
922 X_UNLOCK (EIO_POOL->reslock);
923
924 if (size)
925 return;
926
927 etp_maybe_start_thread (EIO_POOL);
928
929 s_epipe_wait (&respipe);
434 } 930 }
435} 931}
436 932
437static int poll_cb () 933static int
934poll_cb (void)
438{ 935{
439 dSP;
440 int count = 0;
441 int do_croak = 0;
442 aio_req req;
443
444 for (;;) 936 for (;;)
445 { 937 {
446 pthread_mutex_lock (&reslock); 938 int res = eio_poll ();
447 req = reqq_shift (&res_queue);
448 939
449 if (req) 940 if (res > 0)
941 croak (0);
942
943 if (!max_outstanding || max_outstanding > eio_nreqs ())
944 return res;
945
946 poll_wait ();
947 }
948}
949
950ecb_cold
951static void
952reinit (void)
953{
954 create_respipe ();
955
956 if (eio_init (want_poll, done_poll) < 0)
957 croak ("IO::AIO: unable to initialise eio library");
958}
959
960/*****************************************************************************/
961
962static SV *
963get_cb (SV *cb_sv)
964{
965 SvGETMAGIC (cb_sv);
966 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
967}
968
969ecb_noinline
970static aio_req ecb_noinline
971dreq (SV *callback)
972{
973 SV *cb_cv;
974 aio_req req;
975 int req_pri = next_pri;
976 next_pri = EIO_PRI_DEFAULT;
977
978 cb_cv = get_cb (callback);
979
980 req = calloc (sizeof (*req), 1);
981 if (!req)
982 croak ("out of memory during eio_req allocation");
983
984 req->callback = SvREFCNT_inc (cb_cv);
985 req->pri = req_pri;
986
987 return req;
988}
989
990#define dREQ \
991 aio_req req = dreq (callback); \
992
993#define REQ_SEND \
994 PUTBACK; \
995 req_submit (req); \
996 SPAGAIN; \
997 \
998 if (GIMME_V != G_VOID) \
999 XPUSHs (req_sv (req, aio_req_stash));
1000
1001/* *wdsv, *pathsv, *wd and *ptr must be 0-initialized */
1002ecb_inline
1003void
1004req_set_path (SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
1005{
1006 if (expect_false (SvROK (path)))
1007 {
1008 SV *rv = SvRV (path);
1009 SV *wdob;
1010
1011 if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
450 { 1012 {
451 if (!res_queue.size) 1013 path = AvARRAY (rv)[1];
1014 wdob = AvARRAY (rv)[0];
1015
1016 if (SvOK (wdob))
452 { 1017 {
453 /* read any signals sent by the worker threads */ 1018 *wd = SvAIO_WD (wdob);
454 char buf [32]; 1019 *wdsv = SvREFCNT_inc_NN (SvRV (wdob));
455 while (read (respipe [0], buf, 32) == 32)
456 ;
457 } 1020 }
1021 else
1022 *wd = EIO_INVALID_WD;
458 } 1023 }
459 1024 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 { 1025 {
471 req->fd = 1; /* mark request as delayed */ 1026 *wd = (aio_wd)(long)SvIVX (rv);
472 continue; 1027 *wdsv = SvREFCNT_inc_NN (rv);
1028 *ptr = ".";
1029 return; /* path set to "." */
473 } 1030 }
474 else 1031 else
475 { 1032 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 } 1033 }
496 1034
497 return count; 1035 *pathsv = newSVsv (path);
1036 *ptr = SvPVbyte_nolen (*pathsv);
498} 1037}
499 1038
500static void *aio_proc(void *arg); 1039ecb_noinline
501 1040static void
502static void start_thread (void) 1041req_set_path1 (aio_req req, SV *path)
503{ 1042{
504 sigset_t fullsigset, oldsigset; 1043 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} 1044}
520 1045
521static void req_send (aio_req req) 1046ecb_noinline
1047static void
1048req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
522{ 1049{
523 while (started < wanted && nreqs >= started) 1050 SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
524 start_thread ();
525 1051
526 ++nreqs; 1052 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 { 1053 {
572 end_thread (); 1054 case SVt_PVIO:
573 cur--; 1055 case SVt_PVLV:
1056 case SVt_PVGV:
1057 req->type = type_fh;
1058 req->sv1 = newSVsv (fh_or_path);
1059 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1060 break;
1061
1062 default:
1063 req->type = type_path;
1064 req_set_path1 (req, fh_or_path);
1065 break;
574 } 1066 }
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} 1067}
594 1068
595/*****************************************************************************/ 1069/*****************************************************************************/
596/* work around various missing functions */
597 1070
598#if !HAVE_PREADWRITE 1071static void
599# define pread aio_pread 1072ts_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{ 1073{
611 ssize_t res; 1074 ts->tv_sec = value;
612 off_t ooffset; 1075 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} 1076}
623 1077
624static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset) 1078static NV
1079ts_get (const struct timespec *ts)
625{ 1080{
626 ssize_t res; 1081 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} 1082}
638#endif
639 1083
640#if !HAVE_FDATASYNC 1084/*****************************************************************************/
641# define fdatasync fsync
642#endif
643 1085
644#if !HAVE_READAHEAD 1086XS(boot_IO__AIO) ecb_cold;
645# define readahead aio_readahead
646 1087
647static ssize_t readahead (int fd, off_t offset, size_t count) 1088MODULE = IO::AIO PACKAGE = IO::AIO
648{
649 dBUF;
650 1089
651 while (count > 0) 1090PROTOTYPES: ENABLE
652 {
653 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
654 1091
655 pread (fd, aio_buf, len, offset); 1092BOOT:
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{ 1093{
673 struct dirent *e; 1094 static const struct {
674 int errorno; 1095 const char *name;
1096 IV iv;
1097 } *civ, const_iv[] = {
1098# define const_niv(name, value) { # name, (IV) value },
1099# define const_iv(name) { # name, (IV) name },
1100# define const_eio(name) { # name, (IV) EIO_ ## name },
675 1101
676 pthread_mutex_lock (&readdirlock); 1102 /* you have to re-run ./gendef0 after adding/removing any constants here */
1103 /* the first block can be undef if missing */
1104 const_iv (ENOSYS)
1105 const_iv (EXDEV)
1106 const_iv (EBADR)
677 1107
678 e = readdir (dirp); 1108 /* for lseek */
679 errorno = errno; 1109 const_iv (SEEK_DATA)
1110 const_iv (SEEK_HOLE)
680 1111
681 if (e) 1112 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
682 { 1113 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
683 *res = ent; 1114 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
684 strcpy (ent->d_name, e->d_name); 1115 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
685 } 1116 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
686 else 1117 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
687 *res = 0;
688 1118
689 pthread_mutex_unlock (&readdirlock); 1119 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
1120 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
1121 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
1122 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
1123 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
690 1124
691 errno = errorno; 1125 /* the second block will be 0 when missing */
692 return e ? 0 : -1; 1126 const_iv (O_ACCMODE)
693}
694#endif
695 1127
696/* sendfile always needs emulation */ 1128 const_iv (O_RDONLY)
697static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count) 1129 const_iv (O_WRONLY)
698{ 1130 const_iv (O_RDWR)
699 ssize_t res; 1131 const_iv (O_CREAT)
1132 const_iv (O_TRUNC)
1133 const_iv (O_EXCL)
1134 const_iv (O_APPEND)
700 1135
701 if (!count) 1136 const_iv (O_ASYNC)
702 return 0; 1137 const_iv (O_DIRECT)
1138 const_iv (O_NOATIME)
703 1139
704#if HAVE_SENDFILE 1140 const_iv (O_CLOEXEC)
705# if __linux 1141 const_iv (O_NOCTTY)
706 res = sendfile (ofd, ifd, &offset, count); 1142 const_iv (O_NOFOLLOW)
1143 const_iv (O_NONBLOCK)
1144 const_iv (O_EXEC)
1145 const_iv (O_SEARCH)
1146 const_iv (O_DIRECTORY)
1147 const_iv (O_DSYNC)
1148 const_iv (O_RSYNC)
1149 const_iv (O_SYNC)
1150 const_iv (O_PATH)
1151 const_iv (O_TMPFILE)
1152 const_iv (O_TTY_INIT)
707 1153
708# elif __freebsd 1154 const_iv (S_IFIFO)
709 /* 1155 const_iv (S_IFCHR)
710 * Of course, the freebsd sendfile is a dire hack with no thoughts 1156 const_iv (S_IFBLK)
711 * wasted on making it similar to other I/O functions. 1157 const_iv (S_IFLNK)
712 */ 1158 const_iv (S_IFREG)
1159 const_iv (S_IFDIR)
1160 const_iv (S_IFWHT)
1161 const_iv (S_IFSOCK)
1162 const_iv (S_IFMT)
1163
1164 const_iv (ST_RDONLY)
1165 const_iv (ST_NOSUID)
1166 const_iv (ST_NODEV)
1167 const_iv (ST_NOEXEC)
1168 const_iv (ST_SYNCHRONOUS)
1169 const_iv (ST_MANDLOCK)
1170 const_iv (ST_WRITE)
1171 const_iv (ST_APPEND)
1172 const_iv (ST_IMMUTABLE)
1173 const_iv (ST_NOATIME)
1174 const_iv (ST_NODIRATIME)
1175 const_iv (ST_RELATIME)
1176
1177 const_iv (PROT_NONE)
1178 const_iv (PROT_EXEC)
1179 const_iv (PROT_READ)
1180 const_iv (PROT_WRITE)
1181
1182 const_iv (MAP_PRIVATE)
1183 const_iv (MAP_SHARED)
1184 const_iv (MAP_FIXED)
1185 const_iv (MAP_ANONYMOUS)
1186
1187 /* linuxish */
1188 const_iv (MAP_LOCKED)
1189 const_iv (MAP_NORESERVE)
1190 const_iv (MAP_POPULATE)
1191 const_iv (MAP_NONBLOCK)
1192 const_iv (MAP_GROWSDOWN)
1193 const_iv (MAP_32BIT)
1194 const_iv (MAP_HUGETLB)
1195 const_iv (MAP_STACK)
1196
1197 const_iv (MREMAP_MAYMOVE)
1198 const_iv (MREMAP_FIXED)
1199
1200 const_iv (MSG_CMSG_CLOEXEC)
1201 const_iv (SOCK_CLOEXEC)
1202
1203 const_iv (F_DUPFD_CLOEXEC)
1204
1205 const_iv (F_ADD_SEALS)
1206 const_iv (F_GET_SEALS)
1207 const_iv (F_SEAL_SEAL)
1208 const_iv (F_SEAL_SHRINK)
1209 const_iv (F_SEAL_GROW)
1210 const_iv (F_SEAL_WRITE)
1211
1212 const_iv (F_OFD_GETLK)
1213 const_iv (F_OFD_SETLK)
1214 const_iv (F_OFD_GETLKW)
1215
1216 const_iv (FIFREEZE)
1217 const_iv (FITHAW)
1218 const_iv (FITRIM)
1219 const_iv (FICLONE)
1220 const_iv (FICLONERANGE)
1221 const_iv (FIDEDUPERANGE)
1222
1223 const_iv (FS_IOC_GETFLAGS)
1224 const_iv (FS_IOC_SETFLAGS)
1225 const_iv (FS_IOC_GETVERSION)
1226 const_iv (FS_IOC_SETVERSION)
1227 const_iv (FS_IOC_FIEMAP)
1228 const_iv (FS_IOC_FSGETXATTR)
1229 const_iv (FS_IOC_FSSETXATTR)
1230 const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
1231 const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
1232 const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
1233
1234 const_iv (FS_KEY_DESCRIPTOR_SIZE)
1235
1236 const_iv (FS_SECRM_FL)
1237 const_iv (FS_UNRM_FL)
1238 const_iv (FS_COMPR_FL)
1239 const_iv (FS_SYNC_FL)
1240 const_iv (FS_IMMUTABLE_FL)
1241 const_iv (FS_APPEND_FL)
1242 const_iv (FS_NODUMP_FL)
1243 const_iv (FS_NOATIME_FL)
1244 const_iv (FS_DIRTY_FL)
1245 const_iv (FS_COMPRBLK_FL)
1246 const_iv (FS_NOCOMP_FL)
1247 const_iv (FS_ENCRYPT_FL)
1248 const_iv (FS_BTREE_FL)
1249 const_iv (FS_INDEX_FL)
1250 const_iv (FS_JOURNAL_DATA_FL)
1251 const_iv (FS_NOTAIL_FL)
1252 const_iv (FS_DIRSYNC_FL)
1253 const_iv (FS_TOPDIR_FL)
1254 const_iv (FS_FL_USER_MODIFIABLE)
1255
1256 const_iv (FS_XFLAG_REALTIME)
1257 const_iv (FS_XFLAG_PREALLOC)
1258 const_iv (FS_XFLAG_IMMUTABLE)
1259 const_iv (FS_XFLAG_APPEND)
1260 const_iv (FS_XFLAG_SYNC)
1261 const_iv (FS_XFLAG_NOATIME)
1262 const_iv (FS_XFLAG_NODUMP)
1263 const_iv (FS_XFLAG_RTINHERIT)
1264 const_iv (FS_XFLAG_PROJINHERIT)
1265 const_iv (FS_XFLAG_NOSYMLINKS)
1266 const_iv (FS_XFLAG_EXTSIZE)
1267 const_iv (FS_XFLAG_EXTSZINHERIT)
1268 const_iv (FS_XFLAG_NODEFRAG)
1269 const_iv (FS_XFLAG_FILESTREAM)
1270 const_iv (FS_XFLAG_DAX)
1271 const_iv (FS_XFLAG_HASATTR)
1272
1273 const_iv (FIEMAP_FLAG_SYNC)
1274 const_iv (FIEMAP_FLAG_XATTR)
1275 const_iv (FIEMAP_FLAGS_COMPAT)
1276 const_iv (FIEMAP_EXTENT_LAST)
1277 const_iv (FIEMAP_EXTENT_UNKNOWN)
1278 const_iv (FIEMAP_EXTENT_DELALLOC)
1279 const_iv (FIEMAP_EXTENT_ENCODED)
1280 const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
1281 const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
1282 const_iv (FIEMAP_EXTENT_DATA_INLINE)
1283 const_iv (FIEMAP_EXTENT_DATA_TAIL)
1284 const_iv (FIEMAP_EXTENT_UNWRITTEN)
1285 const_iv (FIEMAP_EXTENT_MERGED)
1286 const_iv (FIEMAP_EXTENT_SHARED)
1287
1288 const_iv (SPLICE_F_MOVE)
1289 const_iv (SPLICE_F_NONBLOCK)
1290 const_iv (SPLICE_F_MORE)
1291 const_iv (SPLICE_F_GIFT)
1292
1293 const_iv (EFD_CLOEXEC)
1294 const_iv (EFD_NONBLOCK)
1295 const_iv (EFD_SEMAPHORE)
1296
1297 const_iv (MFD_CLOEXEC)
1298 const_iv (MFD_ALLOW_SEALING)
1299 const_iv (MFD_HUGETLB)
1300
1301 const_iv (CLOCK_REALTIME)
1302 const_iv (CLOCK_MONOTONIC)
1303 const_iv (CLOCK_BOOTTIME)
1304 const_iv (CLOCK_REALTIME_ALARM)
1305 const_iv (CLOCK_BOOTTIME_ALARM)
1306
1307 const_iv (TFD_NONBLOCK)
1308 const_iv (TFD_CLOEXEC)
1309
1310 const_iv (TFD_TIMER_ABSTIME)
1311 const_iv (TFD_TIMER_CANCEL_ON_SET)
1312
1313 const_iv (STATX_TYPE)
1314 const_iv (STATX_MODE)
1315 const_iv (STATX_NLINK)
1316 const_iv (STATX_UID)
1317 const_iv (STATX_GID)
1318 const_iv (STATX_ATIME)
1319 const_iv (STATX_MTIME)
1320 const_iv (STATX_CTIME)
1321 const_iv (STATX_INO)
1322 const_iv (STATX_SIZE)
1323 const_iv (STATX_BLOCKS)
1324 const_iv (STATX_BASIC_STATS)
1325 const_iv (STATX_ALL)
1326 const_iv (STATX_BTIME)
1327 const_iv (STATX_ATTR_COMPRESSED)
1328 const_iv (STATX_ATTR_IMMUTABLE)
1329 const_iv (STATX_ATTR_APPEND)
1330 const_iv (STATX_ATTR_NODUMP)
1331 const_iv (STATX_ATTR_ENCRYPTED)
1332 const_iv (STATX_ATTR_AUTOMOUNT)
1333
1334 /* these are libeio constants, and are independent of gendef0 */
1335 const_eio (SEEK_SET)
1336 const_eio (SEEK_CUR)
1337 const_eio (SEEK_END)
1338
1339 const_eio (MCL_FUTURE)
1340 const_eio (MCL_CURRENT)
1341 const_eio (MCL_ONFAULT)
1342
1343 const_eio (MS_ASYNC)
1344 const_eio (MS_INVALIDATE)
1345 const_eio (MS_SYNC)
1346
1347 const_eio (MT_MODIFY)
1348
1349 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1350 const_eio (SYNC_FILE_RANGE_WRITE)
1351 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1352
1353 const_eio (FALLOC_FL_KEEP_SIZE)
1354 const_eio (FALLOC_FL_PUNCH_HOLE)
1355 const_eio (FALLOC_FL_COLLAPSE_RANGE)
1356 const_eio (FALLOC_FL_ZERO_RANGE)
1357 const_eio (FALLOC_FL_INSERT_RANGE)
1358 const_eio (FALLOC_FL_UNSHARE_RANGE)
1359
1360 const_eio (RENAME_NOREPLACE)
1361 const_eio (RENAME_EXCHANGE)
1362 const_eio (RENAME_WHITEOUT)
1363
1364 const_eio (READDIR_DENTS)
1365 const_eio (READDIR_DIRS_FIRST)
1366 const_eio (READDIR_STAT_ORDER)
1367 const_eio (READDIR_FOUND_UNKNOWN)
1368
1369 const_eio (DT_UNKNOWN)
1370 const_eio (DT_FIFO)
1371 const_eio (DT_CHR)
1372 const_eio (DT_DIR)
1373 const_eio (DT_BLK)
1374 const_eio (DT_REG)
1375 const_eio (DT_LNK)
1376 const_eio (DT_SOCK)
1377 const_eio (DT_WHT)
1378 };
1379
1380 aio_stash = gv_stashpv ("IO::AIO" , 1);
1381 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
1382 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1383 aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
1384
1385 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1386 newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1387
1388 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1389
1390 /* allocate dummy pipe fd for aio_close */
713 { 1391 {
714 off_t sbytes; 1392 int pipefd [2];
715 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
716 1393
717 if (res < 0 && sbytes) 1394 if (
718 /* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */ 1395#ifdef _WIN32
719 res = sbytes; 1396 _pipe (pipefd, 1, _O_BINARY) < 0
1397#else
1398 pipe (pipefd) < 0
1399 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1400#endif
1401 || close (pipefd [1]) < 0
1402 )
1403 croak ("IO::AIO: unable to create dummy pipe for aio_close");
1404
1405 close_fd = pipefd [0];
720 } 1406 }
721 1407
722# elif __hpux 1408 reinit ();
723 res = sendfile (ofd, ifd, offset, count, 0, 0); 1409}
724 1410
725# elif __solaris 1411void
1412reinit ()
1413 PROTOTYPE:
1414
1415void
1416max_poll_reqs (unsigned int nreqs)
1417 PROTOTYPE: $
1418 CODE:
1419 eio_set_max_poll_reqs (nreqs);
1420
1421void
1422max_poll_time (double nseconds)
1423 PROTOTYPE: $
1424 CODE:
1425 eio_set_max_poll_time (nseconds);
1426
1427void
1428min_parallel (unsigned int nthreads)
1429 PROTOTYPE: $
1430 CODE:
1431 eio_set_min_parallel (nthreads);
1432
1433void
1434max_parallel (unsigned int nthreads)
1435 PROTOTYPE: $
1436 CODE:
1437 eio_set_max_parallel (nthreads);
1438
1439void
1440max_idle (unsigned int nthreads)
1441 PROTOTYPE: $
1442 CODE:
1443 eio_set_max_idle (nthreads);
1444
1445void
1446idle_timeout (unsigned int seconds)
1447 PROTOTYPE: $
1448 CODE:
1449 eio_set_idle_timeout (seconds);
1450
1451void
1452max_outstanding (unsigned int maxreqs)
1453 PROTOTYPE: $
1454 CODE:
1455 max_outstanding = maxreqs;
1456
1457void
1458aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1459 PPCODE:
1460{
1461 dREQ;
1462
1463 req->type = EIO_WD_OPEN;
1464 req_set_path1 (req, pathname);
1465
1466 REQ_SEND;
1467}
1468
1469void
1470aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1471 PPCODE:
1472{
1473 dREQ;
1474
1475 req->type = EIO_OPEN;
1476 req_set_path1 (req, pathname);
1477 req->int1 = flags;
1478 req->int2 = mode;
1479
1480 REQ_SEND;
1481}
1482
1483void
1484aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1485 ALIAS:
1486 aio_fsync = EIO_FSYNC
1487 aio_fdatasync = EIO_FDATASYNC
1488 aio_syncfs = EIO_SYNCFS
1489 PPCODE:
1490{
1491 int fd = s_fileno_croak (fh, 0);
1492 dREQ;
1493
1494 req->type = ix;
1495 req->sv1 = newSVsv (fh);
1496 req->int1 = fd;
1497
1498 REQ_SEND;
1499}
1500
1501void
1502aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1503 PPCODE:
1504{
1505 int fd = s_fileno_croak (fh, 0);
1506 dREQ;
1507
1508 req->type = EIO_SYNC_FILE_RANGE;
1509 req->sv1 = newSVsv (fh);
1510 req->int1 = fd;
1511 req->offs = offset;
1512 req->size = nbytes;
1513 req->int2 = flags;
1514
1515 REQ_SEND;
1516}
1517
1518void
1519aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1520 PPCODE:
1521{
1522 int fd = s_fileno_croak (fh, 0);
1523 dREQ;
1524
1525 req->type = EIO_FALLOCATE;
1526 req->sv1 = newSVsv (fh);
1527 req->int1 = fd;
1528 req->int2 = mode;
1529 req->offs = offset;
1530 req->size = len;
1531
1532 REQ_SEND;
1533}
1534
1535void
1536aio_close (SV *fh, SV *callback = &PL_sv_undef)
1537 PPCODE:
1538{
1539 int fd = s_fileno_croak (fh, 0);
1540 dREQ;
1541#if 0
1542 /* partially duplicate logic in s_fileno */
1543 SvGETMAGIC (fh);
1544
1545 if (SvROK (fh))
726 { 1546 {
727 struct sendfilevec vec; 1547 fh = SvRV (fh);
728 size_t sbytes; 1548 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 } 1549 }
740 1550
741# endif 1551 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 { 1552 {
827 int len = strlen (name) + 1; 1553 /* perl filehandle */
1554 PerlIOUnix_refcnt_inc (fd);
1555 do_close ((GV *)fh, 1);
828 1556
829 res++; 1557 req->type = EIO_CLOSE;
830 1558 req->int1 = fd;
831 while (memofs + len > memlen) 1559 /*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 } 1560 }
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 { 1561 else
872 req = reqq_shift (&req_queue); 1562#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 { 1563 {
888 case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break; 1564 /* fd number */
889 case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break; 1565 req->type = EIO_DUP2;
890 1566 req->int1 = close_fd;
891 case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break; 1567 req->sv2 = newSVsv (fh);
892 case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break; 1568 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 } 1569 }
929 1570
930 req->errorno = errno; 1571 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} 1572}
944 1573
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 1574void
1027min_parallel (nthreads) 1575aio_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: 1576 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: $$$;$
1051 PPCODE:
1052{ 1577{
1578 int fd = s_fileno_croak (fh, 0);
1053 dREQ; 1579 dREQ;
1054 1580
1055 req->type = REQ_OPEN; 1581 req->type = EIO_SEEK;
1056 req->data = newSVsv (pathname); 1582 req->sv1 = newSVsv (fh);
1057 req->dataptr = SvPVbyte_nolen (req->data); 1583 req->int1 = fd;
1058 req->fd = flags; 1584 req->offs = SvVAL64 (offset);
1059 req->mode = mode; 1585 req->int2 = whence;
1060 1586
1061 REQ_SEND; 1587 REQ_SEND;
1062} 1588}
1063 1589
1064void 1590void
1065aio_close (fh,callback=&PL_sv_undef) 1591aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1066 SV * fh
1067 SV * callback
1068 PROTOTYPE: $;$
1069 ALIAS: 1592 ALIAS:
1070 aio_close = REQ_CLOSE
1071 aio_fsync = REQ_FSYNC
1072 aio_fdatasync = REQ_FDATASYNC
1073 PPCODE:
1074{
1075 dREQ;
1076
1077 req->type = ix;
1078 req->fh = newSVsv (fh);
1079 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
1080
1081 REQ_SEND (req);
1082}
1083
1084void
1085aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
1086 SV * fh
1087 UV offset
1088 UV length
1089 SV * data
1090 UV dataoffset
1091 SV * callback
1092 ALIAS:
1093 aio_read = REQ_READ 1593 aio_read = EIO_READ
1094 aio_write = REQ_WRITE 1594 aio_write = EIO_WRITE
1095 PROTOTYPE: $$$$$;$
1096 PPCODE: 1595 PPCODE:
1097{ 1596{
1098 aio_req req;
1099 STRLEN svlen; 1597 STRLEN svlen;
1598 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1100 char *svptr = SvPVbyte (data, svlen); 1599 char *svptr = SvPVbyte (data, svlen);
1101 1600 UV len = SvUV (length);
1102 SvUPGRADE (data, SVt_PV);
1103 SvPOK_on (data);
1104 1601
1105 if (dataoffset < 0) 1602 if (dataoffset < 0)
1106 dataoffset += svlen; 1603 dataoffset += svlen;
1107 1604
1108 if (dataoffset < 0 || dataoffset > svlen) 1605 if (dataoffset < 0 || dataoffset > svlen)
1109 croak ("data offset outside of string"); 1606 croak ("dataoffset outside of data scalar");
1110 1607
1111 if (ix == REQ_WRITE) 1608 if (ix == EIO_WRITE)
1112 { 1609 {
1113 /* write: check length and adjust. */ 1610 /* write: check length and adjust. */
1114 if (length < 0 || length + dataoffset > svlen) 1611 if (!SvOK (length) || len + dataoffset > svlen)
1115 length = svlen - dataoffset; 1612 len = svlen - dataoffset;
1116 } 1613 }
1117 else 1614 else
1118 { 1615 {
1119 /* read: grow scalar as necessary */ 1616 /* read: check type and grow scalar as necessary */
1617 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1120 svptr = SvGROW (data, length + dataoffset); 1618 svptr = sv_grow (data, len + dataoffset + 1);
1619 else if (SvCUR (data) < len + dataoffset)
1620 croak ("length + dataoffset outside of scalar, and cannot grow");
1121 } 1621 }
1122
1123 if (length < 0)
1124 croak ("length must not be negative");
1125 1622
1126 { 1623 {
1127 dREQ; 1624 dREQ;
1128 1625
1129 req->type = ix; 1626 req->type = ix;
1130 req->fh = newSVsv (fh); 1627 req->sv1 = newSVsv (fh);
1131 req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1628 req->int1 = fd;
1132 : IoOFP (sv_2io (fh))); 1629 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1133 req->offset = offset; 1630 req->size = len;
1134 req->length = length;
1135 req->data = SvREFCNT_inc (data); 1631 req->sv2 = SvREFCNT_inc (data);
1136 req->dataptr = (char *)svptr + dataoffset; 1632 req->ptr2 = (char *)svptr + dataoffset;
1633 req->stroffset = dataoffset;
1137 1634
1138 if (!SvREADONLY (data)) 1635 if (!SvREADONLY (data))
1139 { 1636 {
1140 SvREADONLY_on (data); 1637 SvREADONLY_on (data);
1141 req->data2ptr = (void *)data; 1638 req->flags |= FLAG_SV2_RO_OFF;
1142 } 1639 }
1143 1640
1144 REQ_SEND; 1641 REQ_SEND;
1145 } 1642 }
1146} 1643}
1147 1644
1148void 1645void
1149aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef) 1646aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
1150 SV * out_fh 1647 ALIAS:
1151 SV * in_fh 1648 aio_ioctl = EIO_IOCTL
1152 UV in_offset 1649 aio_fcntl = EIO_FCNTL
1153 UV length
1154 SV * callback
1155 PROTOTYPE: $$$$;$
1156 PPCODE: 1650 PPCODE:
1157{ 1651{
1158 dREQ; 1652 int fd = s_fileno_croak (fh, 0);
1653 char *svptr;
1159 1654
1160 req->type = REQ_SENDFILE; 1655 if (SvPOK (arg) || !SvNIOK (arg))
1161 req->fh = newSVsv (out_fh);
1162 req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
1163 req->fh2 = newSVsv (in_fh);
1164 req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
1165 req->offset = in_offset;
1166 req->length = length;
1167
1168 REQ_SEND;
1169}
1170
1171void
1172aio_readahead (fh,offset,length,callback=&PL_sv_undef)
1173 SV * fh
1174 UV offset
1175 IV length
1176 SV * callback
1177 PROTOTYPE: $$$;$
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 { 1656 {
1205 req_free (req); 1657 STRLEN svlen;
1206 croak ("out of memory during aio_req->statdata allocation"); 1658 /* perl uses IOCPARM_LEN for fcntl, so we do, too */
1207 } 1659#ifdef IOCPARM_LEN
1660 STRLEN need = IOCPARM_LEN (request);
1661#else
1662 STRLEN need = 256;
1663#endif
1208 1664
1209 if (SvPOK (fh_or_path)) 1665 if (svlen < need)
1210 { 1666 svptr = SvGROW (arg, need);
1211 req->type = ix;
1212 req->data = newSVsv (fh_or_path);
1213 req->dataptr = SvPVbyte_nolen (req->data);
1214 } 1667 }
1215 else 1668 else
1669 svptr = (char *)SvIV (arg);
1670
1216 { 1671 {
1672 dREQ;
1673
1217 req->type = REQ_FSTAT; 1674 req->type = ix;
1218 req->fh = newSVsv (fh_or_path); 1675 req->sv1 = newSVsv (fh);
1219 req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1676 req->int1 = fd;
1677 req->int2 = (long)request;
1678 req->sv2 = SvREFCNT_inc (arg);
1679 req->ptr2 = svptr;
1680
1681 REQ_SEND;
1220 } 1682 }
1683}
1684
1685void
1686aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1687 ALIAS:
1688 aio_readlink = EIO_READLINK
1689 aio_realpath = EIO_REALPATH
1690 PPCODE:
1691{
1692 dREQ;
1693
1694 req->type = ix;
1695 req_set_path1 (req, pathname);
1221 1696
1222 REQ_SEND; 1697 REQ_SEND;
1223} 1698}
1224 1699
1225void 1700void
1226aio_unlink (pathname,callback=&PL_sv_undef) 1701aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1227 SV * pathname 1702 PPCODE:
1228 SV * callback 1703{
1704 int ifd = s_fileno_croak (in_fh , 0);
1705 int ofd = s_fileno_croak (out_fh, 1);
1706 dREQ;
1707
1708 req->type = EIO_SENDFILE;
1709 req->sv1 = newSVsv (out_fh);
1710 req->int1 = ofd;
1711 req->sv2 = newSVsv (in_fh);
1712 req->int2 = ifd;
1713 req->offs = in_offset;
1714 req->size = length;
1715
1716 REQ_SEND;
1717}
1718
1719void
1720aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1721 PPCODE:
1722{
1723 int fd = s_fileno_croak (fh, 0);
1724 dREQ;
1725
1726 req->type = EIO_READAHEAD;
1727 req->sv1 = newSVsv (fh);
1728 req->int1 = fd;
1729 req->offs = offset;
1730 req->size = length;
1731
1732 REQ_SEND;
1733}
1734
1735void
1736aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1229 ALIAS: 1737 ALIAS:
1738 aio_stat = EIO_STAT
1739 aio_lstat = EIO_LSTAT
1740 aio_statvfs = EIO_STATVFS
1741 PPCODE:
1742{
1743 dREQ;
1744
1745 req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1746
1747 REQ_SEND;
1748}
1749
1750void
1751st_xtime ()
1752 ALIAS:
1753 st_atime = 0x01
1754 st_mtime = 0x02
1755 st_ctime = 0x04
1756 st_btime = 0x08
1757 st_xtime = 0x0f
1758 PPCODE:
1759 EXTEND (SP, 4);
1760 if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
1761 if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
1762 if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
1763 if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
1764
1765void
1766st_xtimensec ()
1767 ALIAS:
1768 st_atimensec = 0x01
1769 st_mtimensec = 0x02
1770 st_ctimensec = 0x04
1771 st_btimensec = 0x08
1772 st_xtimensec = 0x0f
1773 st_btimesec = 0x10
1774 st_gen = 0x20
1775 PPCODE:
1776 EXTEND (SP, 4);
1777 if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
1778 if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
1779 if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
1780 if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
1781 if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
1782 if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1783
1784UV
1785major (UV dev)
1786 ALIAS:
1787 minor = 1
1788 CODE:
1789 RETVAL = ix ? minor (dev) : major (dev);
1790 OUTPUT:
1791 RETVAL
1792
1793UV
1794makedev (UV maj, UV min)
1795 CODE:
1796 RETVAL = makedev (maj, min);
1797 OUTPUT:
1798 RETVAL
1799
1800void
1801aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1802 PPCODE:
1803{
1804 dREQ;
1805
1806 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1807 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1808 req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1809
1810 REQ_SEND;
1811}
1812
1813void
1814aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1815 PPCODE:
1816{
1817 dREQ;
1818
1819 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1820 req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1821
1822 REQ_SEND;
1823}
1824
1825void
1826aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1827 PPCODE:
1828{
1829 dREQ;
1830
1831 req->int2 = mode;
1832 req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1833
1834 REQ_SEND;
1835}
1836
1837void
1838aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1839 PPCODE:
1840{
1841 dREQ;
1842
1843 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1844 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1845 req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1846
1847 REQ_SEND;
1848}
1849
1850void
1851aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1852 PPCODE:
1853{
1854 dREQ;
1855
1856 req->type = EIO_READDIR;
1857 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1858
1859 if (flags & EIO_READDIR_DENTS)
1860 req->int1 |= EIO_READDIR_CUSTOM2;
1861
1862 req_set_path1 (req, pathname);
1863
1864 REQ_SEND;
1865}
1866
1867void
1868aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1869 PPCODE:
1870{
1871 dREQ;
1872
1873 req->type = EIO_MKDIR;
1874 req->int2 = mode;
1875 req_set_path1 (req, pathname);
1876
1877 REQ_SEND;
1878}
1879
1880void
1881aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1882 ALIAS:
1230 aio_unlink = REQ_UNLINK 1883 aio_unlink = EIO_UNLINK
1231 aio_rmdir = REQ_RMDIR 1884 aio_rmdir = EIO_RMDIR
1232 aio_readdir = REQ_READDIR 1885 aio_readdir = EIO_READDIR
1233 PPCODE: 1886 PPCODE:
1234{ 1887{
1235 dREQ; 1888 dREQ;
1236 1889
1237 req->type = ix; 1890 req->type = ix;
1238 req->data = newSVsv (pathname); 1891 req_set_path1 (req, pathname);
1239 req->dataptr = SvPVbyte_nolen (req->data); 1892
1240
1241 REQ_SEND; 1893 REQ_SEND;
1242} 1894}
1243 1895
1244void 1896void
1245aio_link (oldpath,newpath,callback=&PL_sv_undef) 1897aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1246 SV * oldpath
1247 SV * newpath
1248 SV * callback
1249 ALIAS: 1898 ALIAS:
1250 aio_link = REQ_LINK 1899 aio_link = EIO_LINK
1251 aio_symlink = REQ_SYMLINK 1900 aio_symlink = EIO_SYMLINK
1252 aio_rename = REQ_RENAME 1901 aio_rename = EIO_RENAME
1253 PPCODE: 1902 PPCODE:
1254{ 1903{
1904 eio_wd wd2 = 0;
1255 dREQ; 1905 dREQ;
1256 1906
1257 req->type = ix; 1907 req->type = ix;
1258 req->fh = newSVsv (oldpath); 1908 req_set_path1 (req, oldpath);
1259 req->data2ptr = SvPVbyte_nolen (req->fh); 1909 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1260 req->data = newSVsv (newpath); 1910 req->int3 = (long)wd2;
1261 req->dataptr = SvPVbyte_nolen (req->data);
1262 1911
1263 REQ_SEND; 1912 REQ_SEND;
1264} 1913}
1265 1914
1266void 1915void
1267aio_busy (delay,callback=&PL_sv_undef) 1916aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
1268 double delay
1269 SV * callback
1270 PPCODE: 1917 PPCODE:
1271{ 1918{
1919 eio_wd wd2 = 0;
1272 dREQ; 1920 dREQ;
1273 1921
1274 req->type = REQ_BUSY; 1922 req->type = EIO_RENAME;
1275 req->fd = delay < 0. ? 0 : delay; 1923 req_set_path1 (req, oldpath);
1276 req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd); 1924 req_set_path (newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1277 1925 req->int2 = flags;
1926 req->int3 = (long)wd2;
1927
1278 REQ_SEND; 1928 REQ_SEND;
1279} 1929}
1280 1930
1281void 1931void
1282aio_group (callback=&PL_sv_undef) 1932aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1283 SV * callback 1933 PPCODE:
1284 PROTOTYPE: ;$ 1934{
1935 dREQ;
1936
1937 req->type = EIO_MKNOD;
1938 req->int2 = (mode_t)mode;
1939 req->offs = dev;
1940 req_set_path1 (req, pathname);
1941
1942 REQ_SEND;
1943}
1944
1945void
1946aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1947 ALIAS:
1948 aio_mtouch = EIO_MTOUCH
1949 aio_msync = EIO_MSYNC
1285 PPCODE: 1950 PPCODE:
1286{ 1951{
1952 STRLEN svlen;
1953 char *svptr = SvPVbyte (data, svlen);
1954 UV len = SvUV (length);
1955
1956 if (flags < 0)
1957 flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1958
1959 if (offset < 0)
1960 offset += svlen;
1961
1962 if (offset < 0 || offset > svlen)
1963 croak ("offset outside of scalar");
1964
1965 if (!SvOK (length) || len + offset > svlen)
1966 len = svlen - offset;
1967
1968 {
1969 dREQ;
1970
1971 req->type = ix;
1972 req->sv2 = SvREFCNT_inc (data);
1973 req->ptr2 = (char *)svptr + offset;
1974 req->size = len;
1975 req->int1 = flags;
1976
1977 REQ_SEND;
1978 }
1979}
1980
1981void
1982aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1983 PPCODE:
1984{
1985 STRLEN svlen;
1986 char *svptr = SvPVbyte (data, svlen);
1987 UV len = SvUV (length);
1988
1989 if (offset < 0)
1990 offset += svlen;
1991
1992 if (offset < 0 || offset > svlen)
1993 croak ("offset outside of scalar");
1994
1995 if (!SvOK (length) || len + offset > svlen)
1996 len = svlen - offset;
1997
1998 {
1999 dREQ;
2000
2001 req->type = EIO_MLOCK;
2002 req->sv2 = SvREFCNT_inc (data);
2003 req->ptr2 = (char *)svptr + offset;
2004 req->size = len;
2005
2006 REQ_SEND;
2007 }
2008}
2009
2010void
2011aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
2012 PPCODE:
2013{
2014 dREQ;
2015
2016 req->type = EIO_MLOCKALL;
2017 req->int1 = flags;
2018
2019 REQ_SEND;
2020}
2021
2022void
2023aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
2024 PPCODE:
2025{
2026 int fd = s_fileno_croak (fh, 0);
1287 dREQ; 2027 dREQ;
1288 2028
1289 req->type = REQ_GROUP; 2029 req->type = EIO_CUSTOM;
1290 req_send (req); 2030 req->sv1 = newSVsv (fh);
2031 req->int1 = fd;
1291 2032
1292 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 2033 req->feed = fiemap;
1293} 2034#if HAVE_FIEMAP
2035 /* keep our fingers crossed that the next two types are 64 bit */
2036 req->offs = start;
2037 req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
2038 req->int2 = flags;
2039 req->int3 = SvOK (count) ? SvIV (count) : -1;
2040#endif
1294 2041
2042 REQ_SEND;
2043}
2044
1295void 2045void
1296aio_nop (callback=&PL_sv_undef) 2046aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
1297 SV * callback 2047 PPCODE:
2048{
2049 char *svptr = 0;
2050
2051 sv_clear_foreign (data);
2052
2053 if (length) /* known length, directly read into scalar */
2054 {
2055 if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
2056 svptr = sv_grow (data, length + 1);
2057 else if (SvCUR (data) < length)
2058 croak ("length outside of scalar, and cannot grow");
2059 else
2060 svptr = SvPVbyte_nolen (data);
2061 }
2062
2063 {
2064 dREQ;
2065
2066 req->type = EIO_SLURP;
2067 req_set_path1 (req, pathname);
2068 req->offs = offset;
2069 req->size = length;
2070 req->sv2 = SvREFCNT_inc (data);
2071 req->ptr2 = svptr;
2072
2073 if (!SvREADONLY (data))
2074 {
2075 SvREADONLY_on (data);
2076 req->flags |= FLAG_SV2_RO_OFF;
2077 }
2078
2079 REQ_SEND;
2080 }
2081}
2082
2083void
2084aio_busy (double delay, SV *callback = &PL_sv_undef)
1298 PPCODE: 2085 PPCODE:
1299{ 2086{
1300 dREQ; 2087 dREQ;
1301 2088
1302 req->type = REQ_NOP; 2089 req->type = EIO_BUSY;
2090 req->nv1 = delay < 0. ? 0. : delay;
1303 2091
1304 REQ_SEND; 2092 REQ_SEND;
1305} 2093}
1306 2094
1307void 2095void
1308aioreq_pri (int pri = DEFAULT_PRI) 2096aio_group (SV *callback = &PL_sv_undef)
1309 CODE: 2097 PPCODE:
2098{
2099 dREQ;
2100
2101 req->type = EIO_GROUP;
2102
2103 PUTBACK;
2104 req_submit (req);
2105 SPAGAIN;
2106
2107 XPUSHs (req_sv (req, aio_grp_stash));
2108}
2109
2110void
2111aio_nop (SV *callback = &PL_sv_undef)
2112 ALIAS:
2113 aio_nop = EIO_NOP
2114 aio_sync = EIO_SYNC
2115 PPCODE:
2116{
2117 dREQ;
2118
2119 req->type = ix;
2120
2121 REQ_SEND;
2122}
2123
2124int
2125aioreq_pri (int pri = NO_INIT)
2126 CODE:
2127 RETVAL = next_pri;
2128 if (items > 0)
2129 {
1310 if (pri < PRI_MIN) pri = PRI_MIN; 2130 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1311 if (pri > PRI_MAX) pri = PRI_MAX; 2131 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1312 next_pri = pri + PRI_BIAS; 2132 next_pri = pri;
2133 }
2134 OUTPUT:
2135 RETVAL
1313 2136
1314void 2137void
1315aioreq_nice (int nice = 0) 2138aioreq_nice (int nice = 0)
1316 CODE: 2139 CODE:
1317 nice = next_pri - nice; 2140 nice = next_pri - nice;
1318 if (nice < PRI_MIN) nice = PRI_MIN; 2141 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1319 if (nice > PRI_MAX) nice = PRI_MAX; 2142 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1320 next_pri = nice + PRI_BIAS; 2143 next_pri = nice;
1321 2144
1322void 2145void
1323flush () 2146flush ()
1324 PROTOTYPE:
1325 CODE: 2147 CODE:
1326 while (nreqs) 2148 while (eio_nreqs ())
1327 { 2149 {
1328 poll_wait (); 2150 poll_wait ();
1329 poll_cb (); 2151 poll_cb ();
1330 } 2152 }
1331 2153
1332void 2154int
1333poll() 2155poll ()
1334 PROTOTYPE:
1335 CODE: 2156 CODE:
1336 if (nreqs)
1337 {
1338 poll_wait (); 2157 poll_wait ();
1339 poll_cb (); 2158 RETVAL = poll_cb ();
1340 }
1341
1342int
1343poll_fileno()
1344 PROTOTYPE:
1345 CODE:
1346 RETVAL = respipe [0];
1347 OUTPUT: 2159 OUTPUT:
1348 RETVAL 2160 RETVAL
1349 2161
1350int 2162int
2163poll_fileno ()
2164 CODE:
2165 RETVAL = s_epipe_fd (&respipe);
2166 OUTPUT:
2167 RETVAL
2168
2169int
1351poll_cb(...) 2170poll_cb (...)
1352 PROTOTYPE: 2171 PROTOTYPE:
1353 CODE: 2172 CODE:
1354 RETVAL = poll_cb (); 2173 RETVAL = poll_cb ();
1355 OUTPUT: 2174 OUTPUT:
1356 RETVAL 2175 RETVAL
1357 2176
1358void 2177void
1359poll_wait() 2178poll_wait ()
2179 CODE:
2180 poll_wait ();
2181
2182int
2183nreqs ()
2184 CODE:
2185 RETVAL = eio_nreqs ();
2186 OUTPUT:
2187 RETVAL
2188
2189int
2190nready ()
2191 CODE:
2192 RETVAL = eio_nready ();
2193 OUTPUT:
2194 RETVAL
2195
2196int
2197npending ()
2198 CODE:
2199 RETVAL = eio_npending ();
2200 OUTPUT:
2201 RETVAL
2202
2203int
2204nthreads ()
2205 CODE:
2206 RETVAL = eio_nthreads ();
2207 OUTPUT:
2208 RETVAL
2209
2210int
2211fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
2212 CODE:
2213 RETVAL = posix_fadvise (fh, offset, length, advice);
2214 OUTPUT:
2215 RETVAL
2216
2217IV
2218sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
2219 CODE:
2220 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
2221 OUTPUT:
2222 RETVAL
2223
2224void
2225mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
2226 PPCODE:
2227 sv_clear_foreign (scalar);
2228{
2229 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
2230 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
2231 if (addr == (void *)-1)
2232 XSRETURN_NO;
2233
2234 sv_set_foreign (scalar, &mmap_vtbl, addr, length);
2235
2236 if (!(prot & PROT_WRITE))
2237 SvREADONLY_on (scalar);
2238
2239 XSRETURN_YES;
2240}
2241
2242void
2243munmap (SV *scalar)
2244 CODE:
2245 sv_clear_foreign (scalar);
2246
2247SV *
2248mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
2249 CODE:
2250{
2251 MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
2252 void *new;
2253
2254 if (!mg || SvPVX (scalar) != mg->mg_ptr)
2255 croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
2256
2257 new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
2258
2259 RETVAL = &PL_sv_no;
2260
2261 if (new != (void *)-1)
2262 {
2263 RETVAL = new == (void *)mg->mg_ptr
2264 ? newSVpvn ("0 but true", 10)
2265 : &PL_sv_yes;
2266
2267 mg->mg_ptr = (char *)new;
2268 mg->mg_obj = (SV *)new_length;
2269
2270 SvPVX (scalar) = mg->mg_ptr;
2271 SvCUR_set (scalar, new_length);
2272 }
2273}
2274 OUTPUT:
2275 RETVAL
2276
2277int
2278madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
2279 ALIAS:
2280 mprotect = 1
2281 CODE:
2282{
2283 STRLEN svlen;
2284 void *addr = SvPVbyte (scalar, svlen);
2285 STRLEN len = SvUV (length);
2286
2287 if (offset < 0)
2288 offset += svlen;
2289
2290 if (offset < 0 || offset > svlen)
2291 croak ("offset outside of scalar");
2292
2293 if (!SvOK (length) || len + offset > svlen)
2294 len = svlen - offset;
2295
2296 addr = (void *)(((intptr_t)addr) + offset);
2297 eio_page_align (&addr, &len);
2298
2299 switch (ix)
2300 {
2301 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
2302 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
2303 }
2304}
2305 OUTPUT:
2306 RETVAL
2307
2308int
2309munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
2310 CODE:
2311{
2312 STRLEN svlen;
2313 void *addr = SvPVbyte (scalar, svlen);
2314 size_t len = SvUV (length);
2315
2316 if (offset < 0)
2317 offset += svlen;
2318
2319 if (offset < 0 || offset > svlen)
2320 croak ("offset outside of scalar");
2321
2322 if (!SvOK (length) || len + offset > svlen)
2323 len = svlen - offset;
2324
2325 addr = (void *)(((intptr_t)addr) + offset);
2326 eio_page_align (&addr, &len);
2327#if _POSIX_MEMLOCK_RANGE
2328 RETVAL = munlock (addr, len);
2329#else
2330 RETVAL = EIO_ENOSYS ();
2331#endif
2332}
2333 OUTPUT:
2334 RETVAL
2335
2336int
2337mlockall (int flags)
2338 PROTOTYPE: $;
2339 CODE:
2340 RETVAL = eio_mlockall_sync (flags);
2341 OUTPUT:
2342 RETVAL
2343
2344int
2345munlockall ()
2346 CODE:
2347#if _POSIX_MEMLOCK
2348 munlockall ();
2349#else
2350 RETVAL = EIO_ENOSYS ();
2351#endif
2352 OUTPUT:
2353 RETVAL
2354
2355int
2356statx (SV8 *pathname, int flags, UV mask)
2357 CODE:
2358{
2359 /* undocumented, and might go away, and anyway, should use eio_statx */
2360 SV *wdsv = 0;
2361 SV *pathsv = 0;
2362 eio_wd wd = EIO_CWD;
2363 void *ptr;
2364 int res;
2365
2366 req_set_path (pathname, &wdsv, &pathsv, &wd, &ptr);
2367 RETVAL = eio__statx (!wd || wd->fd == EIO_CWD ? AT_FDCWD : wd->fd, ptr, flags, mask & STATX_ALL, &stx);
2368
2369 SvREFCNT_dec (pathsv);
2370 SvREFCNT_dec (wdsv);
2371}
2372 OUTPUT:
2373 RETVAL
2374
2375U32
2376stx_mode ()
1360 PROTOTYPE: 2377 PROTOTYPE:
1361 CODE: 2378 CODE:
2379#if HAVE_STATX
2380 RETVAL = stx.stx_mode;
2381#else
2382 XSRETURN_UNDEF;
2383#endif
2384 OUTPUT:
2385 RETVAL
2386
2387#define STATX_OFFSET_mask statx_offsetof (stx_mask)
2388#define STATX_OFFSET_blksize statx_offsetof (stx_blksize)
2389#define STATX_OFFSET_nlink statx_offsetof (stx_nlink)
2390#define STATX_OFFSET_uid statx_offsetof (stx_uid)
2391#define STATX_OFFSET_gid statx_offsetof (stx_gid)
2392#define STATX_OFFSET_rdev_major statx_offsetof (stx_rdev_major)
2393#define STATX_OFFSET_rdev_minor statx_offsetof (stx_rdev_minor)
2394#define STATX_OFFSET_dev_major statx_offsetof (stx_dev_major)
2395#define STATX_OFFSET_dev_minor statx_offsetof (stx_dev_minor)
2396#define STATX_OFFSET_attributes statx_offsetof (stx_attributes)
2397#define STATX_OFFSET_ino statx_offsetof (stx_ino)
2398#define STATX_OFFSET_size statx_offsetof (stx_size)
2399#define STATX_OFFSET_blocks statx_offsetof (stx_blocks)
2400#define STATX_OFFSET_attributes_mask statx_offsetof (stx_attributes_mask)
2401#define STATX_OFFSET_atime statx_offsetof (stx_atime)
2402#define STATX_OFFSET_btime statx_offsetof (stx_btime)
2403#define STATX_OFFSET_ctime statx_offsetof (stx_ctime)
2404#define STATX_OFFSET_mtime statx_offsetof (stx_mtime)
2405
2406U32
2407stx_mask ()
2408 PROTOTYPE:
2409 ALIAS:
2410 stx_mask = STATX_OFFSET_mask
2411 stx_blksize = STATX_OFFSET_blksize
2412 stx_nlink = STATX_OFFSET_nlink
2413 stx_uid = STATX_OFFSET_uid
2414 stx_gid = STATX_OFFSET_gid
2415 stx_rdev_major = STATX_OFFSET_rdev_major
2416 stx_rdev_minor = STATX_OFFSET_rdev_minor
2417 stx_dev_major = STATX_OFFSET_dev_major
2418 stx_dev_minor = STATX_OFFSET_dev_minor
2419 CODE:
2420#if HAVE_STATX
2421 RETVAL = *(__u32 *)((char *)&stx + ix);
2422#else
2423 XSRETURN_UNDEF;
2424#endif
2425 OUTPUT:
2426 RETVAL
2427
2428VAL64
2429stx_attributes ()
2430 PROTOTYPE:
2431 ALIAS:
2432 stx_attributes = STATX_OFFSET_attributes
2433 stx_ino = STATX_OFFSET_ino
2434 stx_size = STATX_OFFSET_size
2435 stx_blocks = STATX_OFFSET_blocks
2436 stx_attributes_mask = STATX_OFFSET_attributes_mask
2437 CODE:
2438#if HAVE_STATX
2439 RETVAL = *(__u64 *)((char *)&stx + ix);
2440#else
2441 XSRETURN_UNDEF;
2442#endif
2443 OUTPUT:
2444 RETVAL
2445
2446NV
2447stx_atime ()
2448 PROTOTYPE:
2449 ALIAS:
2450 stx_atime = STATX_OFFSET_atime
2451 stx_btime = STATX_OFFSET_btime
2452 stx_ctime = STATX_OFFSET_ctime
2453 stx_mtime = STATX_OFFSET_mtime
2454 CODE:
2455#if HAVE_STATX
2456 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2457 RETVAL = ts->tv_sec + ts->tv_nsec * 1e-9;
2458#else
2459 XSRETURN_UNDEF;
2460#endif
2461 OUTPUT:
2462 RETVAL
2463
2464VAL64
2465stx_atimesec ()
2466 PROTOTYPE:
2467 ALIAS:
2468 stx_atimesec = STATX_OFFSET_atime
2469 stx_btimesec = STATX_OFFSET_btime
2470 stx_ctimesec = STATX_OFFSET_ctime
2471 stx_mtimesec = STATX_OFFSET_mtime
2472 CODE:
2473#if HAVE_STATX
2474 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2475 RETVAL = ts->tv_sec;
2476#else
2477 XSRETURN_UNDEF;
2478#endif
2479 OUTPUT:
2480 RETVAL
2481
2482U32
2483stx_atimensec ()
2484 PROTOTYPE:
2485 ALIAS:
2486 stx_atimensec = STATX_OFFSET_atime
2487 stx_btimensec = STATX_OFFSET_btime
2488 stx_ctimensec = STATX_OFFSET_ctime
2489 stx_mtimensec = STATX_OFFSET_mtime
2490 CODE:
2491#if HAVE_STATX
2492 struct statx_timestamp *ts = (struct statx_timestamp *)((char *)&stx + ix);
2493 RETVAL = ts->tv_nsec;
2494#else
2495 RETVAL = 0;
2496#endif
2497 OUTPUT:
2498 RETVAL
2499
2500void
2501accept4 (aio_rfd rfh, SV *sockaddr, int salen, int flags)
2502 PPCODE:
2503{
2504 SV *retval;
2505#if HAVE_ACCEPT4
2506 socklen_t salen_ = salen ? salen + 1 : 0;
2507
1362 if (nreqs) 2508 if (salen)
1363 poll_wait (); 2509 {
2510 sv_upgrade (sockaddr, SVt_PV);
2511 sv_grow (sockaddr, salen_);
2512 }
2513
2514 int res = accept4 (rfh, salen ? (struct sockaddr *)SvPVX (sockaddr) : 0, salen ? &salen_ : 0, flags);
2515
2516 retval = newmortalFH (res, O_RDWR);
2517
2518 if (res >= 0 && salen > 0)
2519 {
2520 if (salen_ > salen + 1)
2521 salen_ = salen + 1;
2522
2523 SvPOK_only (sockaddr);
2524 SvCUR_set (sockaddr, salen_);
2525 }
2526#else
2527 errno = ENOSYS;
2528 retval = &PL_sv_undef;
2529#endif
2530 XPUSHs (retval);
2531}
2532
2533ssize_t
2534splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
2535 CODE:
2536{
2537#if HAVE_LINUX_SPLICE
2538 loff_t off_in_, off_out_;
2539 RETVAL = splice (
2540 rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
2541 wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
2542 length, flags
2543 );
2544#else
2545 RETVAL = EIO_ENOSYS ();
2546#endif
2547}
2548 OUTPUT:
2549 RETVAL
2550
2551ssize_t
2552tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
2553 CODE:
2554#if HAVE_LINUX_SPLICE
2555 RETVAL = tee (rfh, wfh, length, flags);
2556#else
2557 RETVAL = EIO_ENOSYS ();
2558#endif
2559 OUTPUT:
2560 RETVAL
1364 2561
1365int 2562int
1366nreqs() 2563pipesize (aio_rfd rfh, int new_size = -1)
2564 PROTOTYPE: $;$
2565 CODE:
2566#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
2567 if (new_size >= 0)
2568 RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
2569 else
2570 RETVAL = fcntl (rfh, F_GETPIPE_SZ);
2571#else
2572 errno = ENOSYS;
2573 RETVAL = -1;
2574#endif
2575 OUTPUT:
2576 RETVAL
2577
2578void
2579pipe2 (int flags = 0)
1367 PROTOTYPE: 2580 PROTOTYPE: ;$
2581 PPCODE:
2582{
2583 int fd[2];
2584 int res;
2585
2586 if (flags)
2587#if HAVE_PIPE2
2588 res = pipe2 (fd, flags);
2589#else
2590 res = (errno = ENOSYS, -1);
2591#endif
2592 else
2593 res = pipe (fd);
2594
2595 if (!res)
2596 {
2597 EXTEND (SP, 2);
2598 PUSHs (newmortalFH (fd[0], O_RDONLY));
2599 PUSHs (newmortalFH (fd[1], O_WRONLY));
2600 }
2601}
2602
2603void
2604eventfd (unsigned int initval = 0, int flags = 0)
2605 PPCODE:
2606{
2607 int fd;
2608#if HAVE_EVENTFD
2609 fd = eventfd (initval, flags);
2610#else
2611 fd = (errno = ENOSYS, -1);
2612#endif
2613
2614 XPUSHs (newmortalFH (fd, O_RDWR));
2615}
2616
2617void
2618timerfd_create (int clockid, int flags = 0)
2619 PPCODE:
2620{
2621 int fd;
2622#if HAVE_TIMERFD
2623 fd = timerfd_create (clockid, flags);
2624#else
2625 fd = (errno = ENOSYS, -1);
2626#endif
2627
2628 XPUSHs (newmortalFH (fd, O_RDWR));
2629}
2630
2631void
2632timerfd_settime (SV *fh, int flags, NV interval, NV value)
2633 PPCODE:
2634{
2635 int fd = s_fileno_croak (fh, 0);
2636#if HAVE_TIMERFD
2637 int res;
2638 struct itimerspec its, ots;
2639
2640 ts_set (&its.it_interval, interval);
2641 ts_set (&its.it_value , value);
2642 res = timerfd_settime (fd, flags, &its, &ots);
2643
2644 if (!res)
2645 {
2646 EXTEND (SP, 2);
2647 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2648 PUSHs (newSVnv (ts_get (&ots.it_value)));
2649 }
2650#else
2651 errno = ENOSYS;
2652#endif
2653}
2654
2655void
2656timerfd_gettime (SV *fh)
2657 PPCODE:
2658{
2659 int fd = s_fileno_croak (fh, 0);
2660#if HAVE_TIMERFD
2661 int res;
2662 struct itimerspec ots;
2663 res = timerfd_gettime (fd, &ots);
2664
2665 if (!res)
2666 {
2667 EXTEND (SP, 2);
2668 PUSHs (newSVnv (ts_get (&ots.it_interval)));
2669 PUSHs (newSVnv (ts_get (&ots.it_value)));
2670 }
2671#else
2672 errno = ENOSYS;
2673#endif
2674}
2675
2676void
2677memfd_create (SV8 *pathname, int flags = 0)
2678 PPCODE:
2679{
2680 int fd;
2681#if HAVE_MEMFD_CREATE
2682 fd = memfd_create (SvPVbyte_nolen (pathname), flags);
2683#else
2684 fd = (errno = ENOSYS, -1);
2685#endif
2686
2687 XPUSHs (newmortalFH (fd, O_RDWR));
2688}
2689
2690UV
2691get_fdlimit ()
1368 CODE: 2692 CODE:
1369 RETVAL = nreqs; 2693#if HAVE_RLIMITS
2694 struct rlimit rl;
2695 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2696 XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
2697#endif
2698 XSRETURN_UNDEF;
1370 OUTPUT: 2699 OUTPUT:
1371 RETVAL 2700 RETVAL
2701
2702void
2703min_fdlimit (UV limit = 0x7fffffffU)
2704 CODE:
2705{
2706#if HAVE_RLIMITS
2707 struct rlimit rl;
2708 rlim_t orig_rlim_max;
2709 UV bit;
2710
2711 if (0 != getrlimit (RLIMIT_NOFILE, &rl))
2712 goto fail;
2713
2714 if (rl.rlim_cur == RLIM_INFINITY)
2715 XSRETURN_YES;
2716
2717 orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
2718
2719 if (rl.rlim_cur < limit)
2720 {
2721 rl.rlim_cur = limit;
2722
2723 if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
2724 rl.rlim_max = rl.rlim_cur;
2725 }
2726
2727 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2728 XSRETURN_YES;
2729
2730 if (errno == EPERM)
2731 {
2732 /* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
2733 /* our limit overflows a system-wide limit */
2734 /* try an adaptive algorithm, but do not lower the hardlimit */
2735 rl.rlim_max = 0;
2736 for (bit = 0x40000000U; bit; bit >>= 1)
2737 {
2738 rl.rlim_max |= bit;
2739 rl.rlim_cur = rl.rlim_max;
2740
2741 /* never decrease the hard limit */
2742 if (rl.rlim_max < orig_rlim_max)
2743 break;
2744
2745 if (0 != setrlimit (RLIMIT_NOFILE, &rl))
2746 rl.rlim_max &= ~bit; /* too high, remove bit again */
2747 }
2748
2749 /* now, raise the soft limit to the max permitted */
2750 if (0 == getrlimit (RLIMIT_NOFILE, &rl))
2751 {
2752 rl.rlim_cur = rl.rlim_max;
2753 if (0 == setrlimit (RLIMIT_NOFILE, &rl))
2754 errno = EPERM;
2755 }
2756 }
2757#endif
2758 fail:
2759 XSRETURN_UNDEF;
2760}
2761
2762void _on_next_submit (SV *cb)
2763 CODE:
2764 SvREFCNT_dec (on_next_submit);
2765 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1372 2766
1373PROTOTYPES: DISABLE 2767PROTOTYPES: DISABLE
2768
2769MODULE = IO::AIO PACKAGE = IO::AIO::WD
2770
2771BOOT:
2772{
2773 newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
2774 newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
2775}
2776
2777void
2778DESTROY (SV *self)
2779 CODE:
2780{
2781 aio_wd wd = SvAIO_WD (self);
2782#if HAVE_AT
2783 {
2784 SV *callback = &PL_sv_undef;
2785 dREQ; /* clobbers next_pri :/ */
2786 next_pri = req->pri; /* restore next_pri */
2787 req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
2788 req->type = EIO_WD_CLOSE;
2789 req->wd = wd;
2790 REQ_SEND;
2791 }
2792#else
2793 eio_wd_close_sync (wd);
2794#endif
2795}
1374 2796
1375MODULE = IO::AIO PACKAGE = IO::AIO::REQ 2797MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1376 2798
1377void 2799void
1378cancel (aio_req_ornot req) 2800cancel (aio_req_ornot req)
1379 CODE: 2801 CODE:
1380 req_cancel (req); 2802 eio_cancel (req);
1381 2803
1382void 2804void
1383cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 2805cb (aio_req_ornot req, SV *callback = NO_INIT)
1384 CODE: 2806 PPCODE:
2807{
2808 if (GIMME_V != G_VOID)
2809 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
2810
2811 if (items > 1)
2812 {
2813 SV *cb_cv = get_cb (callback);
2814
1385 SvREFCNT_dec (req->callback); 2815 SvREFCNT_dec (req->callback);
1386 req->callback = newSVsv (callback); 2816 req->callback = SvREFCNT_inc (cb_cv);
2817 }
2818}
1387 2819
1388MODULE = IO::AIO PACKAGE = IO::AIO::GRP 2820MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1389 2821
1390void 2822void
1391add (aio_req grp, ...) 2823add (aio_req grp, ...)
1392 PPCODE: 2824 PPCODE:
1393{ 2825{
1394 int i; 2826 int i;
1395 aio_req req;
1396 2827
1397 if (grp->fd == 2) 2828 if (grp->int1 == 2)
1398 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 2829 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1399 2830
1400 for (i = 1; i < items; ++i ) 2831 for (i = 1; i < items; ++i )
1401 { 2832 {
2833 aio_req req;
2834
1402 if (GIMME_V != G_VOID) 2835 if (GIMME_V != G_VOID)
1403 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 2836 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1404 2837
1405 req = SvAIO_REQ (ST (i)); 2838 req = SvAIO_REQ (ST (i));
1406 2839
1407 if (req) 2840 if (req)
1408 { 2841 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 } 2842 }
1421} 2843}
2844
2845void
2846cancel_subs (aio_req_ornot req)
2847 CODE:
2848 req_cancel_subs (req);
1422 2849
1423void 2850void
1424result (aio_req grp, ...) 2851result (aio_req grp, ...)
1425 CODE: 2852 CODE:
1426{ 2853{
1427 int i; 2854 int i;
2855 AV *av;
2856
2857 grp->errorno = errno;
2858
1428 AV *av = newAV (); 2859 av = newAV ();
2860 av_extend (av, items - 1);
1429 2861
1430 for (i = 1; i < items; ++i ) 2862 for (i = 1; i < items; ++i )
1431 av_push (av, newSVsv (ST (i))); 2863 av_push (av, newSVsv (ST (i)));
1432 2864
1433 SvREFCNT_dec (grp->data); 2865 SvREFCNT_dec (grp->sv1);
1434 grp->data = (SV *)av; 2866 grp->sv1 = (SV *)av;
1435} 2867}
2868
2869void
2870errno (aio_req grp, int errorno = errno)
2871 CODE:
2872 grp->errorno = errorno;
1436 2873
1437void 2874void
1438limit (aio_req grp, int limit) 2875limit (aio_req grp, int limit)
1439 CODE: 2876 CODE:
1440 grp->fd2 = limit; 2877 eio_grp_limit (grp, limit);
1441 aio_grp_feed (grp);
1442 2878
1443void 2879void
1444feed (aio_req grp, SV *callback=&PL_sv_undef) 2880feed (aio_req grp, SV *callback = &PL_sv_undef)
1445 CODE: 2881 CODE:
1446{ 2882{
1447 SvREFCNT_dec (grp->fh2); 2883 SvREFCNT_dec (grp->sv2);
1448 grp->fh2 = newSVsv (callback); 2884 grp->sv2 = newSVsv (callback);
2885 grp->feed = aio_grp_feed;
1449 2886
1450 if (grp->fd2 <= 0) 2887 if (grp->int2 <= 0)
1451 grp->fd2 = 2; 2888 grp->int2 = 2;
1452 2889
1453 aio_grp_feed (grp); 2890 eio_grp_limit (grp, grp->int2);
1454} 2891}
1455 2892

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